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Subject cvs commit: httpd-dist CHANGES_1.3
Date Mon, 17 Jun 2002 21:05:36 GMT
jwoolley    2002/06/17 14:05:36

  Added:       .        CHANGES_1.3
  Get this into CVS
  Revision  Changes    Path
  1.1                  httpd-dist/CHANGES_1.3
  Index: CHANGES_1.3
  Changes with Apache 1.3.24
    *) Fixed a segfault in mod_include when #if, #elif, #else, or #endif
       directives were improperly terminated.  [Cliff Woolley]
    *) Introduce proper escaping of and cmd.exe for Win32.
       These patches close vulnerability CAN-2002-0061, identified and
       reported by Ory Segal <ory.segal@sanctuminc>, by which any CGI
       invocation of .bat or .cmd files could comprimize the system 
       when the .bat or .cmd was parsed the query args as an argument 
       to either cmd.exe /c or /c.  [William Rowe]
    *) Add % and \r [C/R] to the dangerous Win32 shell character list.
       Retain the Unix sh escapes list for compatibility.
       [William Rowe]
    *) Pass the command line to the cmd.exe /c interpreter double quoted.
       This fixes a bug that CGI args ending in a double-quote would 
       cause invocation to fail.  Also, treat as a 16-bit 
       executable.  [William Rowe]
    *) Win32; Never invoke cmd or bat scripts based on the registry, even 
       for 'ScriptInterpreterSource Registry' enabled.  [William Rowe]
    *) Provide Win32 users a log of the cgi command invoked, to assist
       in debugging scripts at LogLevel info.  Also provide env vars
       at LogLevel debug for additional help to admins troubleshooting
       the ever mysterious "Premature end of script headers" error.
       [Aaron Bannert]
    *) Added the 'CGICommandArgs off' directive, to allow admins
       to disable the query argument passing mechanism in Apache,
       if future CGI argument vulnerabilities should be discovered.
       This defaults to 'on', meaning isindex-style query arguments
       are enabled.  [Aaron Bannert]
    *) When a proxied site was being served, Apache was replacing
       the original site Server header with it's own, which is not
       allowed by RFC2616. Fixed. [Graham Leggett]
    *) Fixed the previous multiple-cookie fix in the proxy. Cookies
       are broken in that they contain dates which in turn contain
       commas - so merging and then unmerging them breaks Set-Cookie
       headers. Sigh. [Graham Leggett]
    *) Add ap_uuencode to the httpd.exp exports file used by
       the AIX linker. [Bill Stoddard]
    *) Win32: Ignore AcceptMutex directive if it is present
       [Bill Stoddard]
    *) mod_rewrite: restored rnd behavior that was broken in 1.3.23.
       PR 10090, 10185  [Jeroen Boomgaardt <>]
    *) NetWare: Added the command line directive -e that forces all
       fatal configuration error messages to the logger screen rather
       than the Apache screen before Apache is unloaded.
       [Brad Nicholes]
    *) Add the ProxyIOBufferSize option. Previously the size of the
       buffer used while reading from the remote server in proxy was
       taken from ProxyReceiveBufferSize. [Graham Leggett]
    *) Fix a NULL variable check in proxy where we were checking the
       wrong variable. [Geff Hanoian <>]
    *) Fix typo in default config files related to Swedish language
       documents.  PR: 9906, 10040  [Tomas Ögren <>,
       Dennis Lundberg <>]
    *) apxs didn't get rebuilt when options were changed. This must have
       caused much puzzlement in the past. Fixed.
       [Ben Laurie]
    *) No idea why an HTTP/1.1 proxy would send an HTTP/1.0 request
       to a remote server by default. Fixed.
       [Graham Leggett, Gabriel Russell <>]
    *) NetWare: Added the module mod_log_nw to handle log rotation.
       This module adds LogRotateDaily and LogRotateInterval to allow
       all of the custom logs to be either rotated on a daily basis or
       on a specific interval. Based on a patch by Bertrand Demiddelaer.
       [Brad Nicholes]
    *) Fix typo in rotatelogs.8.  [Will Lowe <>]
    *) Clean up warnings in mod_proxy [Chuck Murcko <>]
    *) TPF: Use the correct subpool when opening the error log.
       This prevents a possible SIGPIPE in standalone_main.
       [David McCreedy <>]
    *) When proxy enabled a slow frontend client to read from an
       expensive backend server, it would wait until it had delivered
       the response to the slow frontend client completely before
       closing the backend connection. The backend connection is now
       closed as soon as the last byte is read from it, freeing up
       resources that would have been tied up unnecessarily.
       [Graham Leggett, Igor Sysoev <>]
    *) The proxy code read chunks from the backend server in a
       hardcoded amount of 8k. The existing ProxyReceiveBufferSize
       parameter has been overloaded to specify the size of this buffer.
       [Graham Leggett, Igor Sysoev <>]
    *) [Security] Prevent invalid client hostnames from appearing in
       the log file. If a double-reverse lookup was performed (e.g.,
       for an "Allow from .my.domain" directive) but failed, then
       a spoofed dns-reverse-address could appear in the logs. Now
       the numeric address is logged instead. Note that
       reverse-address-spoofing did NOT actually allow access
       to any protected resource!  [Martin Kraemer]
    *) Some browsers ignore cookies that have been merged into a
       single Set-Cookie header. Set-Cookie and Set-Cookie2 headers
       are now unmerged in the http proxy before being sent to the
       client. [Graham Leggett]
    *) Fix a problem with proxy where each entry of a duplicated
       header such as Set-Cookie would overwrite and obliterate the
       previous value of the header, resulting in multiple header
       values (like cookies) going missing.
       [Graham Leggett, Joshua Slive]
    *) Fix a problem with proxy where X-Cache headers were
       overwriting and then obliterating upstream X-Cache headers
       from other proxies.
       [Graham Leggett, Jacob Rief <>]
    *) Win32: Work around a bug in Windows XP that caused data
       corruption on writes to the network. The WinXP bug
       is tickled by the combined use of WSADuplicateSocket 
       and blocking send() calls.
       [Bill Stoddard, Bill Rowe, Allan Edwards, Szabolcs Szakacsits]
    *) Add 'IgnoreCase' keyword to the IndexOptions directive;
       if active, upper- and lower-case letters are insignificant
       in ordering.  In other words, all A* and a* files will be
       listed together, rather than the a* ones after all the [A-Z]*
       ones.  [Tullio Andreatta <>]
    *) NetWare: Implemented the real ap_os_case_canonical_filename()
       function that retrieves the accurately cased path and file
       name from the file system. [Brad Nicholes]
    *) Fix the longstanding bug that errors (returned by src/Configure)
       would not be noticed by the top level configure script.
       That was bad for automated configurations. [Martin Kraemer]
    *) Link with -lpthread on Solaris since we reference pthread
       functions for the accept mutex.  Previously, the link step
       would succeed but we would link to bogus versions of the
       pthread functions in libc, apparently breaking accept mutex 
       serialization when "AcceptMutex pthread" was used and 
       apparently breaking some third-party modules whether
       or not "AcceptMutex pthread" was used.  [Jeff Trawick]
    *) The Location: response header field, used for external
       redirect, *must* be an absoluteURI.  The Redirect directive
       tested for that, but RedirectMatch didn't -- it would allow
       almost anything through.  Now it will try to turn an abs_path
       into an absoluteURI, but it will correctly varf like Redirect
       if the final redirection target isn't an absoluteURI.  [Ken Coar]
    *) apxs: fix bug that prevented -S option from containing quotes.
       [Ben Laurie]
    *) ftp proxy: various cosmetic and functional improvements
       - Allow for /%2f hack (to access the root directory / )
       - properly escape generated links in dir listing
       - do directory listings in ASCII, to avoid problems with EBCDIC
       - close data & control channels to server properly
       [Martin Kraemer]
    *) NetWare: Added mod_auth_dbm to the project file.  
       [Brad Nicholes]
  Changes with Apache 1.3.23
    *) Changed the symbol mapping of the following from API_EXPORT
           ap_snprintf(), ap_table_do(), ap_bvputs(), ap_log_error(),
           ap_log_rerror(), ap_log_printf(), ap_rprintf()
       [William Rowe]
    *) Fixed a number of mismatched int sizes and signedness problems.
       Still remains, MSVC's 'interesting' declaration of FD_SET still emits
       (impotent) warnings.  [William Rowe]
    *) mod_proxy changes:
      *) Bug fix for ap_proxy_cache_conditional(), unititialized wetag
         [Zvi Har'El <>]
      *) Add persistent connection handling
         The patch changes mod_proxy to write the reply-headers using
         ap_send_http_header() instead of directly using ap_bvputs(). This not
         only simplifies mod_proxy, in my opinion at least, but enables it to
         make use of the features of Apache's normal header and persistent
         connection machinery.
         [Christian von Roques <>]
      *) Graham Leggett's original 1.3.12 patch, updated for 1.3.19+
         Original comments:
         HTTP/1.1 support for mod_proxy:
         - support for Cache-Control
         - conditional support If-Match, If-None-Match,
         If-Unmodified-Since, Etag
         - support for content negotiation using Vary
         - storing of request headers (for Vary support) in cache file 
         - storing of updated response headers (with 304 Not Modified) in 
           cache file
         - support for 64 bit dates and content-lengths in cache file
         - ProxyPassReverse applied to Content-Location
         - entity headers no longer stripped from response after cache
         - annotation of mod_proxy cache code
         [Graham Leggett <>]
         changes to preserve binary compatibility with httpd core, clean up
         [Chuck Murcko <>]
    *) HPUX 11.*: Do not kill the child process when accept() 
       returns ENOBUFS on HPUX 11.*.
    *) PORT: Numerous additions to Cygwin, including: defaulting
       to Posix thread accept mutex, excluding the call to
       pthread_mutexattr_setpshared(), better proxy and DBM support, and
       allowing the use of native Win32 socket ops instead of
       Cygwin's Posix wrapper (for better performance). The last
       item required the addition of a new Configure Rule: CYGWIN_WINSOCK.
       [Stipe Tolj <>]
    *) Use "httpready" accept filter rather than "dataready" on
       FreeBSD after 4.1.1-RELEASE where it works correctly.
       [Tony Finch]
    *) Fix incorrect "Content-Length" header in the 416 "range not
       satisfiable" response. [Joe Orton <>]
    *) Add FileETag directive to control fields used when constructing
       an ETag for a file-based resource.  Historically the inode,
       size, and mtimehave been used, but the inode factor broke
       caching for systems with content fan-out across multiple
       back-end servers.  Now the fields used in the construction
       can be controlled by configuration directives.  Minor MMN
       bumped; MMN went from 19990320.10 to 19990320.11.
       [Ken Coar, from a patch by Phil Dietz]
    *) NetWare: Fixed the access forbidden problem when requesting an
       empty directory rather than showing the empty listing.  
       [Charles Goldman, Guenter Knauf <>]
    *) Cause Win32 to capture all child-worker process errors in
       Apache to the main server error log, until the child can
       open it's own error logs.  [William Rowe]
    *) Revert mod_negotation's handling of path_info and query_args
       to the 1.3.20 behavior.  PR: 8628, 8582, 8538  [William Rowe]
    *) Modify buff.h and buff.c to enable modules to intercept the
       output byte stream for dynamic page caching. A pointer to a 
       'filter callback' function is added to the end of buff.h. 
       This function, if registered by a module, is called 
       at the top of buff_write() and writev_it_all().
       [Kevin Mallory <>]
    *) When the default of 'Group #-1' was changed to 'Group "#-1"',
       the Makefile wasn't updated to recognise the quotation marks.
       [Owen Boyle <>]
    *) Win32: Do not allow threads to continue handling keepalive
       requests after a shutdown or restart has ben signaled.
       [Bill Stoddard]
    *) Win32: Accept OPTIONS * requests.  [Keith Wannamaker]
    *) Unixware 7.0 and later did not have a default locking
       mechanism defined.  This bug was introduced in apache 1.3.4.
       [Dean Gaudet]
    *) Prevent an Apache module from being loaded or added twice due
       to duplicate LoadModule or AddModule directives (or a missing
       ClearModuleList directive).
       [William Rowe, Brian Pane <>]
    *) Add checkgid app to do run-time validation of Group directive
       values which might cause the server to fall over, but which
       are syntactically correct.  [Ken Coar]
    *) NetWare: Added mod_unique_id to the project file.  
       [Brad Nicholes]
    *) NetWare: Fixed a link problem with mod_vhost_alias so that it
       exports the correct MODULE structure. PR 8598  
       [Brad Nicholes]
    *) Unix: The generated install script for binary distributions,, now makes DSO files executable, like
       make install.  This allows a binary distribution to work on 
       HP-UX without any manual intervention.  PR 7428  
       [Jeff Trawick]
    *) Win32: The Apache Win32 developers generally recommend that
       MaxRequestsPerChild be set to 0 to prevent the child process
       from ever recycling. However, for those that do require a 
       non-zero setting, this patch fixes a serious bug that can cause 
       an apparent 'server-hang' condition where the server stops
       responding to requests for a period of time. Prior to this
       fix, when the child process handled MaxRequestsPerChild
       connnections, the child process would stop accepting new 
       connections and begin allowing inactive threads to exit. The
       problem was that a new process would not be created to begin
       handling requests until the old process fully exited. The old 
       process can take an indeterminate amount of time to exit because
       it may be sending large responses to clients connected over slow
       links, or it may have threads blocked in read awaiting requests
       (eg, one attack mode of the Nimda worm is to establish a 
       connection to the server but not send an HTTP request. This 
       connection will be timed out according to the setting of the
       Timeout directive, 300 seconds). This fix allows the new process
       to be immediately started and begin accepting requests when the 
       old child process reaches MaxRequestsPerChild. 
       [Bill Stoddard]
    *) Win32: Emit error message when the server bumps up against the
       ThreadsPerChild configuration limit. This will be useful for 
       admins to detect when their server is running out of threads
       to handle requests. [Bill Stoddard]
    *) Test all directories listed with the UserDir directive for validity.
       Also resolves the Win32/Netware bug of unparsable quoted paths.
       PR 8238  [William Rowe]
  Changes with Apache 1.3.22
    *) Recognize AIX 5.1.  [Jeff Trawick]
    *) PORT: Support AtheOS (see
       [Rodrigo Parra Novo <>]
    *) The manual directory is still configurable (as enabled by
       the 1.3.21 change), but its default setting was reverted to
       the pre-1.3.21 default as a subdirectory of the DocumentRoot.
       You can adapt your path in config.layout or with the
       "configure --manualdir=" switch.      [Martin Kraemer]
    *) Additional correction for the mutex changes on the TPF platform.
       [David McCreedy <>]
    *) mod_proxy - remove Explain*; replace with ap_log_*
       [Chuck Murcko <>]
  Changes with Apache 1.3.21
    *) Enable mod_mime_magic (experimental) for Win32.  [William Rowe]
    *) Use an installed Expat library rather than the bundled Expat. This
       fixes a problem where multiple copies of Expat could be loaded
       into the process space, thus conflicting and causing strange
       segfaults. Most notably with mod_perl and XML::Parsers::Expat.
       [Greg Stein]
    *) Handle user modification of WinNT/2K service display names.  Prior
       versions of Apache only accepted identical internal and display names
       (where internal service names were space-stripped.)  [William Rowe]
    *) Introduce Win32 -W option for -k install/config to set up service
       dependencies on the workstation, snmp and other services that given
       modules or configurations might depend upon.  [William Rowe]
    *) Update the mime.types file to map video/vnd.mpegurl to mxu
       and add commonly used audio/x-mpegurl for m3u extensions.
       [Heiko Recktenwald <>, Lars Eilebrecht]
    *) Modified mod_mime and mod_negotiation to prevent mod_negotiation 
       from serving any multiview variant containing one or more 
       'unknown' filename extensions. In PR #8130, mod_negotiation was 
       incorrectly serving index.html.zh.Big5 when better variants were 
       available. The httpd.conf file on the failing server did not have 
       an AddLanguage directive for .zh, which caused mod_mime to loose
       the file_type information it gleened from parsing the .html
       extension. The absence of any language preferences, either in
       the browser or configured on the server, caused mod_negotiation
       to consider all the variants equivalent. When that occurs, 
       mod_negotiation picks the 'smallest' variant available, which
       just happened to be  index.html.zh.Big5.
       [Bill Stoddard, Bill Rowe] PR #8130
    *) Security: Close autoindex /?M=D directory listing hole reported
       in bugtraq id 3009.  In some configurations where multiviews and 
       indexes are enabled for a directory, requesting URI /?M=D could
       result in a directory listing being returned to the client rather
       than the negotiated index.html variant that was configured and
       expected.  The work around for this problem (for pre 1.3.21
       releases) is to disable Indexes or Multiviews in the affected
       directories.  The Common Vulnerabilities and Exposures project
       ( has assigned the name CAN-2001-0731 to this issue.
       [Bill Stoddard, Bill Rowe]
    *) Enabled Win32/OS2/Netware file paths (not / rooted, but c:/ rooted)
       as arguments for mod_vhost_alias'es directives.  [William Rowe]
    *) Changes for Win32 to assure mod_unique_id's UNIQUE_ID strings really
       are unique between threads.  [William Rowe]
    *) mod_proxy - fix for Pragma: nocache (HTTP/1.0 only)
       [Kim Bisgaard <>] PR #5668
    *) PORT: Some Cygwin changes, esp. improvements for dynamic loading,
       and cleanups. [Stipe Tolj <>]
    *) Win32 SECURITY: The default installation could lead to mod_negotiation
       and mod_dir/mod_autoindex displaying a directory listing instead of
       the index.html.* files, if a very long path was created artificially
       by using many slashes. Now a 403 FORBIDDEN is returned. This
       problem was similar to and in the same area as the problem
       reported and fixed by Martin Kraemer in 1.3.18, only the scope
       is much narrower and is specific to Windows.  The Common 
       Vulnerabilities and Exposures project ( has assigned the 
       name CAN-2001-0729 to this issue.  [Bill Stoddard]
    *) Update the mime.types file to the registered media types as
       of 2001-09-25, and add xsl, so, dll extensions [Mark Cox]
    *) Resolved the build failure on Win32 using MSVC 5.0 (without the
       current SDK.)  PRs 7790, 7948.  [William Rowe]
    *) mod_proxy - fix reverse proxy cookie passthrough
       [Brian Eidelman <>] PR#6055
    *) mod_proxy - fix CacheForceCompletion directive
       [Alexey Panchenko <>] PR#8090
    *) mod_proxy - close origin server connection when client aborts
       [Alexey Panchenko <>] PR#8067,7383,6585
    *) ErrorDocument 404 pointing to a parsed html file with a
       <!--#include virtual="file" --> with a request URI containing
       %2f would result in a segfault (NULL pointer deref, not a
       security problem).  [Jeff Moe <>, Dean Gaudet] PR#8362
    *) UnsetEnv from main body of httpd.conf file didn't work; backport
       of bugfix from 2.0 codebase. [Gary Benson <>] PR#8254
    *) Win32 - add and to the build.
       [William Rowe]
    *) Enhancement of mod_auth to handle 'Require file-owner' and
       'Require file-group'.  This allows access IFF the authenticated
       username (from the appropriate AuthUserFile database) matches
       the username of the UID that owns the document (and equivalent
       checking for file GID and user's membership in AuthGroupFile).
       See the mod_auth documentation for examples.  (Not supported
       on Windows.)  [Ken Coar]
    *) Addition of the AcceptMutex runtime directive. The accept mutex
       method is now runtime controllable. The suite of available methods
       per platform is defined at compile time (with HAVE_FOO_SERIALIZED_ACCEPT
       noting that the method is available and works, and
       USE_FOO_SERIALIZED_ACCEPT noting that it should be the default
       method in absense of any AcceptMutex line, or via AcceptMutex default)
       and selectable at runtime. The full (current) suite is uslock,
       pthread, sysvsem, fcntl, flock, os2sem, tpfcore and none, but
       not all platforms accept all methods. [Jim Jagielski]
    *) Parallel to a change in Apache-2.0, the manual directory was
       moved out of the DocumentRoot tree to simplify the separation
       of private content&configuration from server's on-line
       documentation. An "Alias /manual/ ..." projects the manual/
       directory (which resides now side-by-side with the icons/
       directory) into the logical DocumentRoot. Note that a request
       to http://server/manual (without the trailing slash) will now
       behave different than before (it used to redirect to
       http://server/manual/ but no longer does).
       [Martin Kraemer]
    *) Fixed ap_os_canonical_filename() so that it wouldn't try to
       canonicalize an invalid file name.  Also fixed 
       ap_os_is_path_absolute() so that it wouldn't recognize names
       such as proxy:http://blah as a NetWare volume:pathname.  Both of 
       these fixes were necessary to fix mod_proxy problems on NetWare.
       [Brad Nicholes <>]
    *) Fix a storage leak (a strdup() call) in mod_mime_magic.  
       [Jeff Trawick]
    *) We have always used the obsolete/deprecated Netscape syntax
       for our tracking cookies; now the CookieStyle directive
       allows the Webmaster to choose the Netscape, RFC2109, or
       RFC2965 format.  The new CookieDomain directive allows the
       setting of the cookie's Domain= attribute, too.  PR #s 5006,
       5023, 5920, 6140 [Ken Coar]
    *) The Win32 build script failed if
       INSTDIR="c:\path\with spaces" was given, this is now fixed.  PR 8184
       [Jack Tan <>]
    *) EBCDIC: The proxy, when used in a proxy chain, "forgot" to
       convert the "CONNECT host:port HTTP/1.0" request line to ASCII
       before contacting the next proxy, and was thus unusable for
       SSL proxying.  [Martin Kraemer]
    *) SECURITY: Make support/split-logfile use the default log file if
       "/" or "\" are present in the virtual host name.  This prevents
       the possible use of specially crafted virtual host names in
       some configurations to allow writing to any .log file on the
       system.  The Common Vulnerabilities and Exposures project 
       ( has assigned the name CAN-2001-0730 to this issue.
       [Daniel Matuschek <>,
       Marc Slemko] PR#7848
    *) Added a directive: "AcceptFilter <on|off>". To control BSD 
       acccept filters when at compile time SO_ACCEPT_FILTER is 
       detected. The default is still 'on' except when, at compile
       time, AP_ACCEPT_FILTER_OFF is defined. 
       Also downgraded the fatal exit to a warning when the 
       associated setsocketopt(2) fails for any reason but
       for ENOPROTOOPT. The latter - which implies that the
       kernel does not support the filters - now rates only an 
       info level message. All in all this should make it easier
       to move httpd binaries and config files across BSD machines 
       with varying acceptfilter support.
       [Dirk-Willem van Gulik <>]
    *) Fix the <Files ~ "^\.ht"> container to *really* deny all access.
       Without the Satisfy All, .ht* files could still be fetched if
       they were within the scope of a Satisfy Any directive.
       [Ken Coar]
    *) Print a warning when an attempt is made to use line-end comments.
       Apparently they are not detected/handled gracefully by all directives.
       [Martin Kraemer]
    *) (TPF only) Take advantage of improvements to select(), fork(), and
       exec() in the TPF operating system.  
       [David McCreedy <>]
    *) (Cygwin only) Fix problems with signals sent to child processes;
       Improve auto-configuration for Cygwin.
       [Stipe Tolj <>]
    *) Added Mod_Vhost_Alias to the project file so that it builds as an
       external module (VHOST.NLM). 
       [Brad Nicholes <>]
    *) Fix problem with lingering_close() on Windows.  Issuing read() on the
       socket descriptor on Windows always fails. Should be calling
       recv() instead of read() on Windows.
       [Bill Stoddard, Bill Rowe]
    *) Added an abnormal exit clean up routine to make sure that ApacheC NLM
       is always unloaded cleanly.  This fixes the "Ouch! out of memory"
       problem when restarting Apache for NetWare after an abnormal exit
       due to configuration errors. 
       [Brad Nicholes <>]
    *) Change the compile switches for ReliantUNIX SVR4 not to use
       SYSV semaphores, because upon reaching the system limit of
       semaphores, the whole server exits (not just one child).
       Apache could be improved to use NO_SEM_UNDO flag (see test/time-sem.c)
       which is currently implemented only in the time-sem program, but not in
       apache. Until then, revert to using fcntl() locks.
       [Martin Kraemer]
    *) Changes to 'ab': fixed int overruns, added statistics, output in
       csv/gnuplot format, rudimentary SSL support and various other tweaks
       to make results more true to what is measured. The upshot of this it
       turns out that 'ab' has often underreported the true performance of
       apache. Often by a order of magnitude :-) See talk/paper of Sander 
       Temme <> at April ApacheCon 2001 for details.
       [Dirk-Willem van Gulik]
  Changes with Apache 1.3.20
    *) Autodetect if platforms have isnan() and/or isinf() for use in
       ap_snprintf.c. [Jim Jagielski]
    *) Correct a vulnerability in the Win32 and OS2 ports, by which a 
       client submitting a carefully constructed URI could cause a GP
       (segment) fault in the child process, which would have to be
       cleared by the operator to resume operation.  This vulnerability
       introduced no identified means of compromising the server's data.
       Reported by Auriemma Luigi <>.
       [William Rowe, Brian Havard]
    *) Resolve the Win32 SSI exec cmd bug, where cmd was not executed
       appropriately against the shell.  [William Rowe]
    *) Added NOESCAPE (NS) flag to RewriteRule and enabled use of
       '\' to allow escaping of special characters.  Previously
       there was no way to embed either '$' or '%' in the output
       of a RewriteRule; now 'foo\$1' will result in a literal
       'foo$1' appearing in the result rather than 'foo\<value of $1>'.
       Note that [NS] disables *all* normal URI escaping, so incautious
       use can give unexpected results.  [Ken Coar]
    *) Add support for Win32 apxs.  Note that cygwin builders must use a
       cygwin perl to avoid the MSWin32 handling.  [William Rowe]
    *) Changed the initial screen handling for NetWare so that the -s 
       parameter will properly destroy the Apache console screen and switch 
       to the system console screen.  Also removed the call to clrscr() for 
       NetWare so that any warning messages produced during startup are visible.
       [Brad Nicholes <>]
    *) Integrate support for the Cygwin 1.x platform (a POSIX emulation layer
       for Win32 systems, see
       [Stipe Tolj <>]
    *) Hooked calls to opendir() and readdir() so that we could add '.' and
       '..' to the entry list.  By default NetWare does not return these
       entries which caused mod_autoindex not to display the parent directory
       entry. [Brad Nicholes <>]
    *) Solved a very serious threading problem with WinNT/2K Services.  The
       moment master_main told that the shutdown was complete, the parent
       control thread exited Apache, leaving mod_jserv's Java process running
       and alternately invoking mod_perl's cleanups from the correct thread
       or the service control thread. [William Rowe]
    *) Populate the Win32 HKLM\System\CurrentControlSet\Services\[apachesvc]
       key with the Description value of the running server across all Win32
       platforms, including NT, ME and 9x.  This value is the server_version
       string including loaded modules.  [William Rowe]
    *) Fix ndbm.h include problems with various Linux distributions and 
       brain-dead glibc >= 2.1, which sometimes have ndbm.h in a
       non-standard db1/ subdir. PR#6929
       [Victor J. Orlikowski]
    *) Empty headers are allowed by RFC2068 section 4.2.  The presence or
       absence of an empty header can be significant.  The current mod_proxy
       of httpd 1.3.x removes empty headers. Change mod_proxy to preserve
       empty headers. [Christian von Roques <>]
    *) Enhance rotatelogs so that a UTC offset can be specified, and
       the logfile name can be formatted using strftime(3).  [Ken Coar]
    *) Fix a possible NULL pointer dereference in the detection of the
       default ServerName or IP string (introduced in 1.3.18).
       [Ignasi Roca, <>]
    *) Make EBCDIC conversion fully configurable. Until now, apache relied
       on some (incomplete) heuristics, and would fail to correctly serve
       text files when they had a MIME type of application/anything, like
       application/x-javascript. The new conversion directives allow
       defining the conversion based on MIME type or file suffix.
       [Martin Kraemer]
    *) Add a -V flag to suexec, which causes it to display the
       compile-time settings with which it was built.  (Only
       usable by root or the HTTPD_USER username.)  [Ken Coar]
    *) Set the Win32 service description in the Services control panel to 
       the server_version string from Apache and the loaded modules.
       [William Rowe]
    *) Added a new API for NetWare, ap_os_dso_unsym(), to allow Apache the 
       chance to unimport module symbols before it shuts down.  This is 
       necessary so that Apache on NetWare can shutdown cleanly in an error
       condition such as a failure while reading the httpd.conf file.
       [Brad Nicholes <>]
    *) Introduce NUL device pipes for stdin and stdout for the parent Win32
       service process.  This solves bugs such as PR7198 that report 
       "dup2(stdin) failed" when trying to use piped logs.  [William Rowe]
  Changes with Apache 1.3.19
    *) Rewrite ap_unparse_uri_components() to make it safer and more readable
       ["Jeffrey W. Baker" <>]
    *) Under certain circumstances, Apache did not supply the
       right response headers when requiring authentication.
       [Gertjan van Wingerde <>] PR#7114
    *) Clean up some end-of-loop not reached warnings [Jim Jagielski,
       Aris Stathakis <aris@sco.COM>]
    *) Add the correct language tag for interoperation with the Taiwanese
       versions of MSIE and Netscape. [Clive Lin <clive@CirX.ORG>] PR#7142
    *) Fixed system shutdown on Windows 2000 to assure that the modules have
       an opportunity to clean up.  Note there is a _very_ limited amount of
       time in which to execute all cleanups [see MSKB Q146092] so all of
       the modules may still not be given an opportunity to complete their
       cleanups if they require more than 20 seconds total.  [William Rowe]
  Changes with Apache 1.3.18 [not released]
    *) Workaround enabled for a core dump which appeared in broken
       NameVirtualHost configurations. [Martin Kraemer]
    *) Sporadic core dump in ap_default_port_for_scheme() with
       internal requests fixed by [Jeffrey W. Baker <>]
    *) PORT: Allow for build under latest dev. version of NonStopUX
       on Compaq. [Tom Bates <>]
    *) mod_user on Win32 bug introduced in 1.3.17 is corrected.  The parsing
       is completely rewritten so all platforms share the same file/redirect
       logic interpreting UserDir directives.  Specifying a Win32 or Netware
       relative path or a relative path on any platform using an '*' now
       emits an error when httpd.conf is first parsed.  [William Rowe]
    *) Apache/Win32 no longer holds open the console on error, unless invoked
       by a shortcut with the new -w option.  [William Rowe]
    *) The Win32 -t test config now holds the console open on "SYNTAX OK".
       [William Rowe]
    *) Apache on Win9x now ensures the service is stopped before removal.
       [William Rowe]
    *) SECURITY: The default installation could lead to mod_negotiation
       and mod_dir/mod_autoindex displaying a directory listing instead of
       the index.html.* files, if a very long path was created artificially
       by using many slashes. Now a 403 FORBIDDEN is returned.
       [Martin Kraemer]
    *) Trailing slashes (if they exist) are now removed from ServerRoot,
       because there were known problems with them.
       ["William A. Rowe, Jr." <>]
    *) Changed ap_os_is_filename_valid on NetWare to accept 
       SERVER/VOLUME:/PATH/FILE as a valid filename pattern. 
       [Brad Nicholes <>]
    *) Win32/Netware: correct relative paths and eliminate trailing slash
       in the -d serverroot argument.  -d Serverroot may be relative to 
       the path of the Apache.exe file.  [William Rowe]
    *) Win32; fix the ServerRoot as the path of the Apache.exe file.
       Eliminates the requirement of a 'backup' registry key to locate
       the server root.  [William Rowe]
    *) NetWare MOD_TLS fixes to disable nagles properly when making an SSL
       connection, and properly detect an SSL connection based on the port
       and work around the r->server->port 80 bug.  
       [Brad Nicholes <>]
    *) TPF startup/shutdown fixes. [David McCreedy <>]
    *) Correct a typo in httpd.conf.
       [Kunihiro Tanaka <>] PR#7154 
    *) Get the correct IP address if ServerName isn't set and we can't
       find a fully-qualified domain name at startup.
       [Danek Duvall <>] PR#7170
    *) Fix pointer arithmetic in mod_rewrite map expansion.
       [Christopher A. Bongaarts <>] PR#7157, 7158
    *) Fixed a problem with file extensions being truncated during
       the call to ap_os_canonical_filename().
       [Brad Nicholes <>]
  Changes with Apache 1.3.17
    *) Normalize the Netware path names to close a potential security
       hole in comparing paths when the adminstrator specifies both
       sys:foo and sys:/foo formats in the same httpd.conf file.
       [Brad Nicholes]
    *) Fix an unlikely segfault provided a zero length string in the
       translate_userdir() call on win32/os2, and accept backslashes
       in the UserDir directive on those platforms [William Rowe]
    *) Fixed translate_userdir() in MOD_USERDIR.C so that it correctly
       recognizes NetWare absolute paths.  This fixes the problem where
       MOD_USERDIR was trying to redirect to an absolute NetWare path
       rather than opening the file at the specified location.  This 
       patch fixes PR5826 & 6283. [Brad Nicholes <>]
    *) Fixed ap_os_is_path_absolute() in OS.H so that it can tell the
       between a NetWare path (SYS:/path) and a URL (HTTP://path).
       [Brad Nicholes <>]
    *) Fixed the sdbm.h bundled in Apache for Win32, bringing it in sync
       with Perl.  Because it didn't have the same geometry as Perl, 
       users reported the first user added with dbmmanage was not 
       recognized.  [William Rowe]
    *) Fixed ap_os_canonical_filename to append a the default volume 
       name if the the path is a full path and does not include the
       volume name.  Since NetWare's current working directory always 
       defaults to the SYS: volume regardless of where the executible 
       started, the default volume will be the volume that is specified 
       in ap_server_root.  [Brad Nicholes <>]
    *) Handle port numbers in Host headers properly again after
       the code was broken in 1.3.15. [Tony Finch]
  Changes with Apache 1.3.16 [not released]
    *) None from 1.3.15 [repository tags were the issue, no code altered]
  Changes with Apache 1.3.15 [not released]
    *) Fix a new problem introduced with the -k config syntax, that the
       service installed with the -i flag would attempt to re-install
       itself when starting the server.  [William Rowe, Andrew Braund]
    *) Fix the declaration of the module structure in mod_example.
       [Gururaj Upadhye <>] PR#7095
    *) Fix the handling of variable expansion look-ahead in mod_rewrite,
       i.e. syntax like %{LA-U:REMOTE_USER}, and also fix the parsing of
       more complicated nested RewriteMap lookups. [Tony Finch] PR#7087
    *) Fix the RFC number mentioned when complaining about a missing
       Host: header. [Alexey Toptygin <>] PR#7079
    *) Fix Range header processing to properly parse the syntax specified
       in RFC 2616, and properly handle unsatisfiable requests by returning
       a 416 error. [Tony Finch, William Rowe] PR#6973
    *) Remove some human-readable fluff from the machine-readable mod_status
       display. [Youichirou Koga <>] PR#7025
    *) The new Win32 command line option, -k config, replaces the default
       options for the existing, named service with the options given on 
       the -k config command line.  Apache -n servicename -t now displays
       the default options before it tests the httpd.conf.  Use the syntax
       apache -k config -n servicename -f conffile to upgrade an existing
       1.3.x service to the new 1.3.15 default arguments.  [William Rowe]
    *) All Win32 services now support default command line options when
       starting an Apache service.  The command line options given with
       the apache -k install command, including -d, -f, -D, -C and -c, 
       are all saved in the registry.  This change superceeds the old
       ConfPath entry, so existing services must be reconfigured when
       upgrading to 1.3.15.  [William Rowe]
    *) The Win32 build is overhauled to use for all dynamic
       Apache modules.  [William Rowe]
    *) The Win32 build scripts (, Apache.dsw) now build
       all the usual targets, including the directories htdocs, include,
       lib, libexec, and cgi-bin.  [William Rowe]
    *) WinNT/2K service can be started from the command line with any
       desired args (e.g. Apache -k start -n apache-1.3 -D FOO will
       start the service with the -D FOO option.)  This extends what
       Apache on Win9x already does, even running as a service.
       [William Rowe]
    *) WinNT/2K can be started from the Services control panel adding
       whatever args are desired (e.g. -D ARG) in the 'Start Parameters'
       box of the start service dialog.  These will be passed on and
       recognized by the service as it starts.  [William Rowe]
    *) Support -k install/-k uninstall on Win32 for compatibility with 
       Apache 2.0.  [William Rowe]
    *) mod_cgi on Win32 and Netware now does a more effective job of
       capturing all stderr output from user's scripts.  PR6161
       [Hardy Braunsdorf <>, Will Rowe]
    *) mod_status now respects ?refresh=n of 1 or greater.  If the given
       refresh value is not a number, ?refresh is set to 1 second.
       [William Rowe, Dirk Ahlers <> PR5067]
    *) Restore child process consoles to correct 16-bit CGI execution
       on Windows.  Relies on Win9xConHook.dll for Win9x.  This patch
       also assures the Apache window remains titled 'Apache', rather
       than flickering to the cgi app titles.  [William Rowe]
    *) Added Win9xConHook.dll, which uses hidden console spy windows to 
       handle the shutdown, logoff and Close button events, and dispatch
       them to Apache just as SetConsoleCtrlHandler does on Win NT/2K.
       The close button on Win9x now works, and the Win9x service support
       code moved into this module.  [William Rowe]
    *) Fix messages from the -k start/stop/restart command options on
       Windows.  [William Rowe]
    *) Allow Win32 users to build mod_isapi, regardless of the age of
       their Win32 SDK headers.  Warning provided if features must be
       disabled due to old headers.  [William Rowe]
    *) The ScriptInterpreterSource Registry source will now handle any
       post-scriptname arguments (e.g. cmd script -q), substitute any
       environment variables (e.g. "%windir%\sysapp.exe") and use the
       short or long path name as appropriate (e.g. "doit %1" uses the
       short form, no spaces, while "doit "%1"" uses the long form of
       the script name, in quotes.)  Also, passes all script names in
       backslash delimited format (instead of slashes).  [William Rowe]
    *) Accomodate an out-of-space condition in the piped logs and the
       rotatelogs.c code, and no longer churn log processes for this
       condition.  [Victor J. Orlikowski]
    *) Make cgi-bin work as a regular directory when using mod_vhost_alias
       with no VirtualScriptAlias directives. [Tony Finch] PR#6829
    *) Move the check of the Expect request header field after the hook
       for ap_post_read_request, since that is the only opportunity for
       modules to handle Expect extensions.
       [Justin Erenkrantz <>]
    *) Add default CacheGcInterval of one hour [ Chuck Murcko ]
    *) Each Netware thread is created in its own thread group to ensure 
       that any context change applies only to the thread in which the 
       change was made.  [Brad Nicholes <>]
    *) Relax the syntax checking of Host: headers in order to support
       iDNS. [Tony Finch] PR#6635
    *) Fix Content-Length calculation when doing Range header processing.
       This makes PDF byteserving work again. [Tony Finch] PR#6711
    *) Link with libresolv on UnixWare 7 so that PHP works.
       [Larry Rosenman <>] PR#6780
    *) Linux 2.2.x and later do not need a serialised single listener,
       and sysv semaphores scale better than fcntl.  Updated GuessOS
       to distinguish 2.0.x from 2.2.x -- 2.0.x will still use fcntl.
       [Andrew Morton <>, Dean Gaudet]
    *) Eliminate caching problems of mod_autoindex results, so the last
       modified date of the directory is returned as the Last-Modified 
       and ETag HTTP header tags are sent if IndexOptions TrackModified
       directive/option is used. [William Rowe]
    *) Corrected file path arguments from server conf directives to
       their canonical form (excluding OS2 - which uses alternate 
       logic.)  Resolves a long list of PRs reporting that Win32 paths
       of the syntax x:\foo were mis-concatinated to the server root
       as of release 1.3.14.  [William Rowe]
    *) Correct an issue with Alias and ScriptAlias directives that 
       file path arguments were not normalized in canonical form.
       This correction makes no attempt to normalize regular expression
       forms of Alias or ScriptAlias.  [William Rowe]
    *) Add a new LogFormat directive, %c, that will log connection
       status at the end of the response as follows:
       'X' - connection aborted before the response completed.
       '+' - connection may be kept-alive by the server.
       '-' - connection will be closed by the server.
       [Bill Stoddard <>]
    *) Normalize all NetWare config directive paths and filespecs to
       their canonical names.  [Brad Nicholes <>]
    *) Update the mime.types file to the registered media types as
       of 2000-10-19. [Carsten Klapp <>,
       Tony Finch] PR#6613
    *) Restore functionality broken by the mod_rewrite security fix:
       rewrite map lookup keys and default values are now expanded
       so that the lookup can depend on the requested URI etc.
       [Tony Finch] PR #6671
  Changes with Apache 1.3.14
    *) Fixes to allow compilation on NetWare [Brad Nicholes
  Changes with Apache 1.3.13 [not released]
    *) NOTE: A number of Win32 symbols were exported without explicit
       declaration in the ApacheCore.def file.  These are now exported
       with the same ordinal export values from 1.3.12, but are now
       named consistent with Apache's conventions. [William Rowe]
    *) Add support for a "conf directory" which operates similar to
       /etc/rc.d/init. Basically, if a config file is actually a
       directory, all the files in that directory will be parsed
       as conf files. PR #6397 [Jim Jagielski, Lionel Clark
    *) Initial support added for mod_proxy under MPE/iX.
       [Mark Bixby <>]
    *) Refined UID/GID management and permissions on MPE/iX to deal 
       with some limitations. [Mark Bixby <>]
    *) Updated the MPE DSO code to be compatible with an OS patch that
       fixed an earlier DSO problem,  #include tweakage required for 
       using apxs to build modules without access to the full source 
       tree, and other minor MPE tweaks.  
       [Mark Bixby <>]
    *) Tighten up the syntax checking of Host: headers to fix a
       security bug in some mass virtual hosting configurations
       that can allow a remote attacker to retrieve some files
       on the system that should be inaccessible. [Tony Finch]
    *) Add support for /, //, //servername and //server/sharename 
       parsing of <Directory > blocks under Win32 and OS2.
       [Tim Costello, William Rowe, Brian Havard]
    *) Expand dbmmanage to allow -d -m -s -p options for Crypt, MD5,
       SHA1 and plaintext password encodings.  Make feature tests a
       bit more flexible.  [William Rowe]
    *) Fix a security problem that affects some configurations of
       mod_rewrite. If the result of a RewriteRule is a filename that
       contains expansion specifiers, especially regexp backreferences
       $0..$9 and %0..%9, then it may have been possible for an attacker
       to access any file on the web server. [Tony Finch]
    *) Add mod_auth_dbm (sdbm flavor) binary build for Win32.
       [William Rowe]
    *) Overhaul of dbmmanage to allow a groups arg (as in Apache 1.2)
       as well as a comment arg to the add, adduser and update cmds.
       update allows the user to clear or preserve pw/groups/comment.
       Fixed a bug in dbmmanage that prevented the check option from 
       parsing a password followed by :group... text.  Corrected the
       seed calcualation for Win32 systems, and added -lsdbm support.
       [William Rowe]
    *) Radical surgery to improve mod_isapi support under Win32.
       Includes a number of newer ServerSupportFunction calls, support
       for ReadClient (in order to retrieve POSTs greater than 48KB),
       and general bug fixes to more reliably load ISAPI .dll's and
       prevent leaking handle resources.  Note: There are still 
       discrepancies between IIS's and Apache's ServerVariables, and
       async calls are still not supported.  Additional warnings are
       logged to facilitate debugging of unsupported ISAPI calls.
       [William Rowe]
    *) Update Configure script to allow building Apache on IBM's
       IA64 version of AIX. [Paul Reder]
    *) NameVirtualHost can now take "*" as an argument instead of
       an IP address. This allows you to create a purely name-based
       virtual hosting server that does not have any IP addresses in
       the configuration file and which ignores the local address
       of any connections. PR #5595, PR #4455 [Tony Finch]
    *) Fix processing/merging of Remove* MIME directives.
       PR #5597 [Sander van Zoest <>]
    *) Fix merging of AddDefaultCharset directive.
       PR #5872 [Jun Kuriyama <>]
    *) Win32: Work around bug in Win32 select on network reads. Select
       can indicate a socket has data to read, but the subsequent read
       can return WSAEWOULDBLOCK. This problem has been observed
       when running with SSL enabled Apache, specifically, browsers
       sometimes cannot complete the SSL handshake when an SGC 
       certificate is used, receiving a network error message.
       [Richard Scholz]
    *) Use "accept filtering" on recent versions of FreeBSD iff the
       kernel is configured to support them. This allows Apache to avoid
       having to handle new connections until the request has arrived.
       [Tony Finch]
    *) Fix error handling in make_sock. [Tony Finch]
    *) The htdocs/ tree has been moved out of the CVS source tree into
       a separate area for easier development.  This has NO EFFECT on
       end-users or Apache installations.  [Ken Coar]
    *) Fix problem matching Configure guessos on HP-UX 10.
       [Victor J. Orlikowski]  PR#6015
    *) Correct the problem where the only local host name that the IP stack
       can discover are 'undotted' private names.  If no fully qualified
       domain name can be identified, the default ServerName will be set to
       the machine's IP address string. A warning is provided if Apache has
       to assume the IP dotted address string or the localhost/loopback
       address as the ServerName.  The default ServerName is removed from
       the default Win32 httpd.conf file.  [William Rowe]
    *) Add new directives RemoveType and  RemoveEncoding to accompany the
       RemoveHandler directive added in 1.3.4.  AddType, AddEncoding, and
       AddHandler now all have corresponding 'undo' directives.  This allows
       things like marking foo.tar.gz.asc as *not* being gzipped, so it will be
       correctly interpreted as an unzipped signature of a gzipped file.
       [Ken Coar]
    *) Win32 NT and 2000 services now capture stderr messages that occur
       before Apache's logs are opened to the Application Event Log.
       Console and Win9x services now hold the console open for 30 seconds
       (and may be dismissed with the <ESC> key) if they exit with an error.
       [William Rowe]
    *) Expand Win32 protection for pathname length, to provide protection
       from future potential bugs such as that which caused directory index 
       to be displayed rather than returning an error.
       [William Rowe, Allan Edwards <>]
       [Ovies Brabson]
    *) Change Win32 the isProcessService() routine to compensate for other
       helper apps that invoke Apache.exe without a console.  Recognize that
       we are running NT, and use the STARTF_FORCEOFFFEEDBACK flag to be
       sure that the SCM has invoked the process. [William Rowe,
         Jim Patterson <>, Kevin Kiley <>]
    *) Export from Win32 the ap_start_shutdown and ap_start_restart symbols 
       for modules and executables dynamically linked to the core.
       [William Rowe; Jim Patterson <>]
    *) Prevent the source code for CGIs from being revealed when using
       mod_vhost_alias and the CGI directory is under the document root
       and a user makes a request like
       as reported in <>
       [Tony Finch]
    *) Under Win32, The console input mode is fixed to ignore mouse events 
       and always listen for a Ctrl+C interrupt, even if the console window
       defaults to another mode. [William Rowe]
    *) All Win32 services will now perform a graceful restart when given
       the -n servicename -k restart signal.  No equivilant control exists
       in the service control panel applet or through the NET command.
       There is no useful acknowledgement on Windows 95/98, however.
       [William Rowe]
    *) Significant overhaul of the Win32 port documentation contained in
       the README-WIN.TXT, as well as the htdocs/manual pages windows.html,
       win_compiling.html, and the new win_service.html.
       [Andrew Braund <>, William Rowe]
    *) Add 'services' for Windows 95 and 98, including install/uninstall
       options.  The Apache server therefore can start when the OS loads,
       and will not stop between logoffs.  This implementation remains 
       -HIGHLY EXPERIMENTAL-.  Additional changes provide for clean shutdown 
       of Win95/98 when Apache is running as a 'service' or a console.  
       [William Rowe, Jan Just Keijser <>]
    *) USE_PTHREAD_SERIALIZED_ACCEPT on AIX 4.3 and above. This change
       provides a substantial performance improvement on multi-CPU
       machines serving large numbers of concurrent clients.  
       [Victor J. Orlikowski <>]
    *) Brought httpd.conf-dist-win into sync with httpd.conf-dist, and added
       explicit documentation of many Win32 specific features. [William Rowe]
    *) Convert Win32 build files (.dsp) to MSVC 6.0 format, and add perl
       scripts and for portability to version 5.0.
       [William Rowe]
    *) Fix mod_expires to merge its settings for Cache-Control into any
       existing value for the field.  It was unconditionally setting it,
       wiping out anything from, say, a 'Header Append Cache-Control'.
       [Ken Coar] PR#5769
    *) Add Win32 option -k stop as an alias of -k shutdown, to correspond to
       the NET START/NET STOP syntax. [William Rowe]
    *) Force Apache to test the Win32 config prior to any operation,
       except the [-k shutdown -n service] and [-u -n service] combinations.
       [William Rowe]
    *) Add Win32 Ctrl+C/Ctrl+Break/Close/Logoff/Shutdown handler.
       [William Rowe, Jan Just Keijser <>]
    *) Expand mod_setenvif so its directives can be used in <Files> and
       <Directory> containers, and in .htaccess files when FileInfo
       overriding is allowed.  [Ken Coar] PR#3000
    *) Fix Win32 bug when pathname length exactly equals MAX_PATH. 
       This bug caused directory index to be displayed rather than
       returning an error. [Allan Edwards <>]
    *) Correct mod_proxy Win95 dynamic link __declspec(thread) bug.
       David Whitmarsh <> 
       PR: 1462, 2216, 3645
    *) Changed Apache for NetWare build to link with XDC data which
       marks the NLMs as being able to run on any processor.
       [Mike Gardiner <>]
    *) Ported expat-lite to NetWare and integrated project files into the
       ApacheNW.mcp. [Mike Gardiner <>]
    *) Switched thread storage data mechanism on NetWare to use updated
       system calls. [Mike Gardiner <>]
    *) Fixed problem with multilanguage support that prevented Apache on
       NetWare from displaying the correct language page.
       [Mike Gardiner <>]
    *) Fixed memory leaks on NetWare port.  When unloading Apache with
       the developer option turned on NetWare would spew messages
       complaining about unreleased resources.
       [Mike Gardiner <>]   
    *) Fixed a problem that prevented Apache on NetWare from shutting down
       correctly when loading multiple instances in individual address
       spaces. [Mike Gardiner <>]
    *) Changed threading primitives to use faster more scalable calls.
       [Mike Gardiner <>]
    *) Added -s option for NetWare port to allow Apache to run without a
       screen. [Mike Gardiner <>]
    *) Added code for NetWare port to display the listening ports and loaded
       DSO modules to the console screen.
       [Mike Gardiner <>]
    *) Removed ugly NetWare specific code from the modules and added libpre.c
       and libprews.c instead.  These files implement the NLM startup code
       for shared NLMs (DSOs).  The result of using these files is less
       obtrusive code, faster load times, and a smaller executable size.
       libprews.c contains WSAStartup and WSACleanup WinSock calls needed for
       initialization and termination of DSO modules.
       [Mike Gardiner <>]
    *) Moved htpasswd and htdigest projects files for NetWare into the main
       ApacheNW.mcp project file. [Mike Gardiner <>]
    *) Added mod_tls (SSL/TLS) module for NetWare SSL/TLS support.
       [Mike Gardiner <>]
    *) Updated httpd.conf-dist-nw with <IfModule> directives around
       standard DSO modules. [Mike Gardiner <>]
    *) Correct mod_proxy Win32 garbage collection bug (clean failing
       due to stat() against directory).
       PR: 1891, 3278, 3640, 4139, 5997
       [Michael Friedel <>]
    *) Add '-n' option to htpasswd to make it print its user:pw record
       on stdout rather than having to frob a text file.  [Ken Coar]
    *) Set default ServerName setting to for the Windows
       config file (httpd.conf-dist-win)
       PR: 5509, 5783, 5953, 5903, 5983, 5259, 5515, 5858
       [Oliver Wendemuth <>]
    *) [EBCDIC] Update mod_mmap_static so that an ebcdic box can use 
       MMapFile for files that shouldn't be converted from ebcdic->ascii.
       [Greg Ames]
    *) Revamp the Win32 make environment. Apache.dsw created to bring 
       together all the pieces. Create new file os/win32/BaseAddr.ref 
       to define module base addresses (to prevent dll relocation at 
       start-up).  Extraneous compiler files were removed (precompiled
       headers, incremental link images), and .map files were added
       for consistent diagnostics of gpfaults of the binary release.
       [William Rowe, Greg Marr, Tim Costello, Bill Stoddard]
    *) Resolved Win32 mod_info (ApacheModuleInfo.dll) errors.
       PR1442, PR2472, PR4125, PR1643 and PR2208
       Jim Patterson, Jan Just Keijser <>
    *) Add some more error reporting to htpasswd in the case of problems
       generating or accessing the temporary file.  Also, pass in a
       buffer if the implementation knows how to use it (i.e., if L_tmpnam
       is defined).  [Ken Coar]  PR#3945, 5253, 5383, 5558
    *) PORT: Add recognition of the GNU/Hurd platform.
       [Adam Farrell <>]
    *) More FAQs and answers from comp.infosystems.www.servers.unix.
       [Joshua Slive <>]
    *) Win32: Add dependency checking to the CreateService call to ensure 
       TCPIP and AFP (winsock) are started before Apache.
       [William Rowe <>]
    *) FAQ changes related to tidying up historical documents on the web site.
       [Joshua Slive <>]
    *) Various fixes to mod_auth_digest:
        - Reworked MD5-sess stuff. The semantics of userpw_hash() have been
  	changed for it to return
              MD5(MD5(username ":" realm ":" password) ":" nonce ":" cnonce)
  	instead of just
  	    MD5(username ":" realm ":" password)
  	because one of the points of MD5-sess is to allow the info to be
  	retrieved from login servers so that the server itself never has
  	the full auth info (after all, MD5(u/r/p) is equivalent to the
  	password for auth purposes).
        - In order to allow for servers to share a realm the server-name
  	and port have been removed from the nonce-hash. Even so, sharing
  	the realm has problems - see the new comments at the beginning.
        - Fixed uri-comparison when request-uri isn't identical to uri in
  	Authorization header (some fields were not being initialized).
        - Handle non-FQDN's (i.e. simple hostnames) in uri parameter in
  	the Authorization header. Thanks to Joe Orton
  	<> for pointing out the problem.
        [Ronald Tschalär]
    *) Add case_preserved_filename field to the request_rec structure.
       On systems with case insensitive file systems (Windows, OS/2, etc.), 
       r->filename is case canonicalized (folded to either lower or upper 
       case, depending on the specific system) to accomodate file access
       checking. case_preserved_filename is the same as r->filename 
       except case is preserved. There is at least one instance where Apache 
       needs access to the case preserved filename: Java class files published 
       with WebDAV need to preserve filename case to make the Java compiler 
       happy. [Bill Stoddard]
    *) Put in Korean and Norwegian index.html pages (2.0 and 1.3)
       which where donated by Lee Kuk Hyun and Lorant Czaran [dirkx].
    *) Modules which load third-party DLLs (ala mod_dav)
       expect them to be in the path or cwd.  Tweak the
       service startup code to not only change to correct
       drive but also correct directory.
       [Keith Wannamaker <>]
    *) WinNT: Do a better job at handling spaces in service names.
       Add the util function ap_remove_spaces and export it on all
       platforms. Change some Win32 service and registry functions to 
       make use of this new function. 
       [Keith Wannamaker <>]
    *) use send/recv instead of write/read in proxy_connect -- fixes
       https through proxy on NT.  []
       PR 5963, 5899, 5823, 5107, 4990?, 4885, 4680, 4468, 3801, 2014
    *) [EBCDIC] Make chunked encoding work again; it was broken by the
       recent CRLF macro changes. An oversight. [Martin Kraemer]
    *) Work around a popular restriction of some sed(1)'s in APACI where
       "1,/<pattern>/" commands start searching for <pattern> at line 2 only.
       [Ralf S. Engelschall]
    *) Merged in a small subset of SGI's latest `10x' patchkit for Apache
       1.3.11. The extracted and merged in parts are entirely cleanup and
       non-performance related changes only. SGI's remaining changes are
       not taken over, because they are either cluttering the Apache 1.3
       sources too much (e.g. the lint(1) related changes) or cause too
       much internal changes (e.g. the ap_int32 types, etc.) which are not
       reasonable to do any longer for Apache 1.3 (they should be done for
       Apache 2.0 instead).
       [Mike Abbott <>, Ralf S. Engelschall]
    *) Fixes to mod_proxy for BeOS support.
       [David Reid <>]
    *) Fix return value calculation in APXS' error messages.
       This should avoid the confusion on APXS errors.
       [Ralf S. Engelschall]
    *) Make ApacheBench (ab) compile again stand-alone under 
       [Ralf S. Engelschall]
    *) The ServerTokens directive now accepts the 'ProductOnly' keyword,
       which results in the display of just 'Apache' with no version
       information.  Additional product tokens are still only visible
       with ServerTokens Full.  In addition, ServerTokens now complains
       about bogus keywords (which it used to silently treat as 'Full').
       [Ken Coar]
  Changes with Apache 1.3.12
    *) Only OS/2 requires the addition "t" flag for ap_pfopen()
       (as therefore fopen() as well). This is handled by the
       FOPEN_REQUIRES_T macro. [Ian Turner <>,
       Jim Jagielski] PR#5760
    *) The default charset is only added, when enabled, for those
       Content-types which require it (text/plain, text/html).
       [Jim Jagielski] PR#5766
    *) Fix handling of multiple queries in APXS commands (e.g. "apxs -q
       CC CFLAGS") and make sure Perl-related command line options (which
       can contain the "::" constructs) do no longer cause an incorrect
       internal parsing of the query result.
       [Ralf S. Engelschall, Steve Robb <>]
    *) Avoid infinite looping in APACI's configure script
       inside Ultrix' /bin/sh5 upgrade step.
       [Jan Gallo <>, Ralf S. Engelschall] PR#4940
    *) PORT: Add support for Amdahl UTS 4.3 and later.
       [Dave Dykstra <>] PR#5654
    *) Make implementation/descriptions of the FLAG directives
       AuthAuthoritative, MetaFiles and ExtendedStatus consistent with
       documentation and the standard way of implementation those directives.
       [David MacKenzie <>, Ralf S. Engelschall] PR#5642
    *) Cast integer ap_wait_t values in http_main.c to get rid of compile
       time errors on platforms where "ap_wait_t" is not defined as "int"
       (currently only the NEXT and UTS21 platforms).
       [Gary Bickford <>, Ralf S. Engelschall] PR#5053
    *) The default suexec path was HTTPD_ROOT/sbin/suexec if not
       configured via APACI. Changed to HTTPD_ROOT/bin/suexec.
       [Lars Eilebrecht]
    *) Add an explicit charset=iso-8859-1 to pages generated by
       ap_send_error_response(), such as the default 404 page.
       [Marc Slemko]
    *) Add the AddDefaultCharset directive. This allows you to specify
       the given character set on any document that does not have one
       explicitly specified in the headers.  [Marc Slemko, Jim Jagielski]
    *) Properly escape various messages output to the client from a number
       of modules and places in the core code.  [Marc Slemko]
    *) Change mod_actions, mod_autoindex, mod_expires, and mod_log_config to
       not consider any parameters such as charset when making decisions 
       based on content type.  This does remove some functionality for 
       some users, but means that when these modules are configured to do 
       particular things with particular MIME types, the charset should 
       not be included.  A better way of addressing this for users who 
       want to set things on a per charset basis is necessary in the future.  
       [Marc Slemko]
    *) mod_include now entity encodes output from "printenv" and "echo var"
       by default.  The encoding for "echo var" can be set to URL encoding
       or no encoding using the new "encoding" attribute to the echo tag.
       [Marc Slemko]
  Changes with Apache 1.3.11
    *) MPE builds are no longer stripped, which caused the executable
       to not work. [Mark Bixby]
  Changes with Apache 1.3.10
    *) Fixed parsing of TAKE13-based configuration directives.
       [Steffen Roller <>] PR#5550
    *) rename the lookup() function to hashTableLookup() (in expat-lite)
       to prevent name clashes with modules / third-party software.
       [Ralf S. Engelschall, Greg Stein]
    *) Reduce the time that a parent waits for its children to die
       after SIGKILL has been sent, since there isn't much point in waiting
       another 16 seconds beyond the initial SIGTERM waiting period.
       [Ed Korthof]
    *) Add --suexec-umask option to configure, and severity levels
       to suexec log messages.  Also clarify a couple of those messages,
       which were perhaps a bit too cryptic.  [Ken Coar] PR#4178
    *) The end_chunk() code forgot to convert the trailing CRLF pair
       from EBCDIC to ASCII. Fixed. [Martin Kraemer]
    *) An Action set for a Location that didn't correspond to a file didn't
       work. Fixed.
       [Manoj Kasichainula, Ben Laurie]
    *) ProxyPass and mod_rewrite's proxy mode erroneously converted 
       authentication requests to proxy authentication requests.
       [Ben Laurie]
    *) Reverse a patch which broke HPUX shared builds. Basically
       we comment out the SHLIB_SUFFIX_NAME=sl line in Configure.
       [Ryan Bloom]
    *) Added the mod_rewrite `URL Rewriting Guide' to the online
       documentation (htdocs/manual/misc/rewriteguide.html). This paper
       provides a large collection of practical solutions to URL based
       problems a webmaster is often confronted with.
       [Ralf S. Engelschall]
    *) Add a suexec status report to the '-l' (compiled-in modules)
       output. [Ken Coar]
    *) Changes to enable server-parsed mod_autoindex Header and
       Readme files. [Raymond S Brand <>]
    *) Add back support for UseCanonicalName in <Directory> containers
       [Manoj Kasichainula]
    *) More rigorous checking of Host: headers to fix security problems
       with mass name-based virtual hosting (whether using mod_rewrite
       or mod_vhost_alias).
       [Ben Hyde, Tony Finch]
    *) Updated README.config to reflect current APACI state.
       [Brian Slesinsky <>] PR#5397
    *) Added SuSE and BSDI layouts to config.layout for convinience reasons.
       [Sebastian Helms <>, Timur Bakeyev
       <>] PR#5112 PR#5154
    *) Consistency cleanup of the complete APXS tool and corresponding manpage.
       [Ralf S. Engelschall]
    *) Add %q logging format directive (logs "?" and the query string part
       of a query, or the empty string if no query).
       Can be used in combination with %m, %U and %H: "%m %U%q %H" is the
       same as "%r".  [Peter Watkins <>]
    *) Improve OS390 port to work on older system releases
       [Paul Gilmartin <>]
    *) Enhance mod_mime with an AddCharset directive to properly handle
       that negotiation dimension.
       [Youichirou Koga <>]
    *) OS: Added first cut at support for IBM's OS/390.
       [Ovies Brabson <>]
    *) Replace all occurrences of "\012\015" by a macro CRLF. This makes
       the code (somewhat) more readable, and improves the portability
       to character sets other than ASCII (e.g., EBCDIC).
       This patch results in no functional change whatsoever on ASCII
       machines, but allows EBCDIC platforms to live without the
       ebcdic2ascii_strictly() kludge.
       [Paul Gilmartin <>, slightly modified
       by Martin Kraemer]
    *) more fixes to mod_auth_digest:
       - better comparing of request-uri with uri parameter in Authorization
       - added a check for a MUST condition in the spec
       - fixed SEGV
       [Ronald Tschalär]
    *) mod_proxy now works on TPF.
       [Joe Moenich <>]
    *) Enhance mod_actions' Script handling to be able to deal with
       arbitrary methods and not just the well-known ones.  This allows
       experimental or organisation-private methods to be used without
       waiting for Apache to catch up.
       [Ken Coar]
    *) Fix various compile time warnings in hashbang_emul code which
       prevent successful compilation on OS/390  [Ovies Brabson
       <>, Paul Gilmartin <>]
    *) EBCDIC: Fixed binary upload capability (plain and chunked) for
       all methods using the ap_*_client_block() functions, most notably
       POST and PUT. The functionality to switch input between protocol
       parts (chunks) and (possibly binary) data had been missing all
       the time, making chunked PUT impossible until now.
       [Martin Kraemer]
    *) Fixed a recently introduced off-by-one-character bug in 
       mod_rewrite's expansion of expression back-references.
       [Cliff Woolley <>] PR#4766 PR#5389
    *) Add IndexOptions DescriptionWidth so that the width of the
       description field in fancy-indexed directory listings can
       be specified.
       [Ken Coar] PR#2324, plus lots that are closed unsatisfied
    *) EBCDIC: Escaped characters were encoding the ebcdic representation
       of the special characters, not the latin1 representation. This
       would result in invalid URI's for, e.g., filenames (with special chars)
       in mod_autoindex.c [Martin Kraemer]
    *) EBCDIC: Fix Byte Ranges for EBCDIC platforms. The necessary switch
       between implied conversion for protocol parts and configured
       conversion for document data was missing. The effect of this was that
       PDF files could not be read by Acrobat Reader (which sends long
       lists of byte ranges in each request) when the server was apache
       on ebcdic machines.
       [Noted by Oliver Reh <>, solved by Martin
       Kraemer, warnings fixed by Ovies Brabson <>]
    *) Add IndexOptions FoldersFirst to allow fancy-indexed directory
       listings to have the subdirectories always listed at the top.
       [Ken Coar]
    *) BS2000: Use send() instead of write() in the core buff routines
       for better performance and fewer restrictions (max. transfer size)
       [Martin Kraemer]
    *) If the compiler sanity check fails, force the verbose output
       for TestCompile so people can have a clue what the problem
       is. [Jim Jagielski]
    *) Add --iconsdir, --htdocsdir, and --cgidir option to top-level
       configure script to allow one to override the corresponding 
       variables from config.layout.
       [Ralf S. Engelschall]
    *) Fixed `quad integer' (aka `long long') handling in ap_snprintf.c
       [Jim Jagielski, Ralf S. Engelschall]
    *) Fixed error handling in dbmmanage script.
       [Andrew McRae <>] PR#4973
    *) Fixed NEXT/OpenStep building by adding an fallback typedef for 
       rlim_t to ap_config.h.
       [Mark Miller <>] PR#4906
    *) Fix SHARED_CORE feature for HPUX by backing-out a change (comitted
       between 1.3.7 and 1.3.9) which changed the DSO extension from `sl' to
       `so'. This worked only for modules (where we load the DSO manually), but
       horribly fails under HPUX for DSO-based/shared libraries (where our
       $SHLIB_SUFFIX_NAME is used, too).
       [Gary Silverman <>] PR#4974
    *) Added support for Berkeley-DB/3.x to mod_auth_db.
       [Steve Atkins <>, Ralf S. Engelschall] PR#5382
    *) Fixed mod_auth_digest.c: result of an open() call was being 
       checked against the wrong failure value.
       [Rick Ohnemus <>] PR#5292
    *) Removed the variable name "template" from a prototype for SunOS4 
       in ap_config.h to make C++ compiler happy, too.
       [SAKAI Kiyotaka <>] PR#5363
    *) Added missing links to htdocs/manual/mod/directives.html 
       for AllowCONNECT and ProxyDomain. [Patrik Grip-Jansson 
       <>, Ralf S. Engelschall] PR#5319
    *) Fixed typo in htdocs/manual/install.html.
       [Chris Pepper <>] PR#5360
    *) Fix $AWK/awk usage in top-level configure script: We confused ourself and
       replaced the wrong "$AWK" with a plain "awk" in the last releases. So we
       now both fix this and move the comment which already tried to explain it
       more closer to the location to which it applies.
       [Paul Gilmartin <>, Ralf S. Engelschall] PR#5304
    *) Replaced pipes with commas in GuessOS' fallback output (displayed for not
       explicitly recognized platforms) to avoid side-effects with APACI's
       --shadow feature and similar uses where GuessOS' output is used directly
       on the filesystem (where pipes are meta-characters!).
       [Paul Gilmartin <>] PR#5303
    *) Made stripping of a trailing slash in directory names in top-level
       configure script more robust and this way support also a plain `/' 
       as the argument without resulting in an empty name.
       [Matthias Lohmann <>, Ralf S. Engelschall] PR#5291
    *) Made `tr' usage in top-level configure script more portable 
       by always using square brackets consistently.
       [Masashi Kizaki <>] PR#5230
    *) Fixed ap_config_auto.h generation in src/Configure: there for the ``quad
       integer'' stuff ``#ifndef+#undef+#endif'' pairs were generated instead of
       ``#ifdef+#undef+#endif'' pairs.
       [Greg Siebers <>] PR#5231
    *) EBCDIC: fix the hsregex package to correctly deal with [a-zA-Z] type
       character ranges (the alphabet is non-contiguous in EBCDIC) and with
       the special [:cntrl:] range (the control character class is determined
       dynamically at run time). [Martin Kraemer]
    *) Add --with-port option to APACI. [Ian Kallen <>]
    *) Fixed QUERY_STRING handling for `RewriteRule ... [P]'
       in per-directory context.
       [Martin Zeh <>] PR#5073
    *) Overhauled mod_rewrite's general substitution function
       (expand_backref_inbuffer): 1. The `$0' backreference is now officially
       allowed and documented and references the while pattern space; 2. the
       ampersamp (&) backreference (which is equal to $0) is no longer expanded,
       because it was never documented and only leads to confusion with
       QUERY_STRINGS; 3. backslashes (\) are honored correctly, that is `\$N'
       now really forces the dollar to be an ordinary character and $N is
       not expanded. 
       [Ralf S. Engelschall] PR#4766 PR#4161
    *) Make sure mod_rewrite escapes QUERY_STRINGS on redirects.
       [Klaus Johannes Rusch <>] PR#4734
    *) Make sure mod_rewrite matches URL schemes case-insensitive and also allow
       additional (commonly used) URL schemes ldap:, news: and mailto:.
       [Ralf S. Engelschall, Klaus Johannes Rusch <>] PR#3140
    *) Overhauled ApacheBench (ab) manpage ab.8.
       [Simon Baldwin <>] PR#5139
    *) Made sure ApacheBench (ab) performs no more requests than 
       specified on command line (option -n).
       [Jim Cox <>] PR#4839
    *) Support DSOs properly on 32-bit HP-UX 11.0
       [Dilip Khandekar <>]
    *) Fix problem with proxy configuration where globally set configuration
       options were overridden inside virtual hosts.
       [Graham Leggett <>]
    *) Fix ProxyReceiveBufferSize where default value was left uninitialised.
       [Graham Leggett <>]
    *) Added a CLF '-' respecting %B to the log format.
       Suggested by Ragnar Kjųrstad [dirkx]
    *) Added protocol(%H)/method(%m) logging to the log format.
       Suggested by Peter W <> [dirkx]
    *) Added a HEAD method to 'ab'. [dirkx]
    *) When generating the Location: header, mod_speling forgot
       to escape the spelling-fixed uri. [Martin Kraemer]
    *) Update for the next release of the TPF OS (PUT11)
       [David McCreedy <>]
    *) Add some compile-time flags to the output when -V is used for TPF
       [David McCreedy <>]
    *) mod_auth_digest fixes:
       - Use unix-io instead of stdio to read /dev/random (fixes problems
         on FreeBSD)
         [Kano <>] PR#4967
       - Correctly unescape all parts of the request uri and the uri
         attribute of the Authorization header before doing comparison
         [Joe Orton <>, Ronald Tschalär]
       - Fixes for MD5-sess
         [Joe Orton <>]
       - Don't send a domain attribute in Proxy-Authenticate
         [Ronald Tschalär]
    *) ap_base64decode_binary does not null-terminate the output anymore
       [Bill Stoddard, Ronald Tschalär]
    *) WIN32: The following bugs introduced in Apache 1.3.9 have been fixed
       - CGIs broken if script calls other programs which deliver on stdout
         (Search this file for "DETACHED")
       - 16 bit CGIs should work now
       - Server will not start if passed the -d option with spaces in the
         argument. [Bill Stoddard]
    *) WIN32: GetExtensionVersion() comparison in mod_isapi fails when
       using some non-MS compilers [Bill Stoddard]
       PR#3597, PR#3782, PR#3781, PR#4887
    *) Allow BeOS to use its native closesocket() call
       [David Reid <>]
    *) More TPF changes. Code reorganization for cleanliness, regex
       changes for testing, as well as doc and build updates.
       [David McCreedy <> and others at IBM]
    *) Add TPF processing for the socket read to the rfc1413 code.
       [David McCreedy <> and others at IBM]
    *) Require the batch (-b) option and default to MD5 on TPF in htpasswd.
       [David McCreedy <> and others at IBM]
    *) Move "handler not found" warning message to below the check
       for a wildcard handler.  [Dirk <>, Roy Fielding]
       PR#2584, PR#2751, PR#3349, PR#3436, PR#3548, PR#4384, PR#4795, PR#4807
    *) Build errors in src/support stop with an error, just like all the
       other recursive make calls. [David Harris <>]
  Changes with Apache 1.3.9
    *) Remove bogus error message when a redirect doesn't set Location.
       Instead, use an empty string to avoid coredump if the error message
       was supposed to include a location.  [Roy Fielding]
    *) Don't allow configure to include mod_auth_digest unless it is
       explicitly requested, even if the user asked for all modules.
       [Roy Fielding]
    *) Translate module names to dll names for OS/2 so that they are no more
       than 8 characters long and have an extension of "dll" instead of "so".
       [Brian Havard]
    *) Print out pointer to Rule DEV_RANDOM when truerand lib not found.
       Fix test-compile check to check for randbyte instead of trand32.
       Use ap_base64encode_binary/decode instead of copy in mod_auth_digest.c
       and tweak to make Amaya happier.  [Ronald Tschalär]
    *) Ensure that the installed expat include files are world readable,
       just like the other header files.  [Martin Kraemer]
    *) Fixed generated AddModule adjustments in APACI's `configure' script
       in order to allow (new) modules like mod_vhost_alias to be handled
       correctly (which was touched by the adjustments for mod_alias).
       [Ralf S. Engelschall]
    *) For binary builds, add -R flag to apachectl to work around the lack of
       an absolute path to the ./libexec directory where the libhttp.ep file
       is needed for SHARED_CORE architectures.  [Randy Terbush]
    *) WIN32: Create the CGI script process as DETACHED.  This may solve the
       problem observed by some Win95/98 users where they get CGI script
       output sent to the console.  [Bill Stoddard]
    *) Fix (re)naming in the uuencode/decode section. The ap/ap_
       routines are now called ap_base64* and are 'plain' (i.e., no 
       pool access or anything clever). Inside util.c the routines acting
       like pstrdup are called ap_pbase64encode() and ap_pbase64decode().
       The oddly named ap_uuencode(), ap_uudecode() are kept around for
       now but deprecated.  [dirkx]
    *) Clean up the base64 and SHA1 additions and make sure they are
       represented in the ApacheCore.def, ApacheCoreOS2.def, and httpd.exp
       files.  [Roy Fielding]
    *) WIN32: Migrate to InstallShield 5.5 and provide a bit more error
       checking.  Allow compiling on VS 6.0.  [Randy Terbush]
    *) Fixed assumption of absolute paths in  [Tony Finch]
    *) Use TestCompile to search for the truerand library (rather than blindly
       assuming its existence). If it is not found, complain (but do not
       exit - yet).  [Martin Kraemer]
    *) We forgot to add the new exported function names to
       src/support/httpd.exp.  [Bill Stoddard, Randy Terbush]
    *) Add description of -T command-line option to usage().
       [Ralf S. Engelschall]
    *) For "some" platforms (notably, EBCDIC based ones), libos needs to be
       searched only AFTER libap has been searched, because libap needs
       some symbols from libos.  [Martin Kraemer]
    *) Fix conflict with original mod_digest related to the symbol of the
       module dispatch list (which has to be unique for DSO and follow the
       usual conventions for the installation procedure).
       [Ralf S. Engelschall]
    *) Add a dbm-library check for the "usual places" (-ldbm, -lndbm, -ldb)
       for other platforms as well.  [Martin Kraemer]
    *) Make ap_sha1.c compile for EBCDIC platforms: replace remaining LONG
       types by AP_LONG and replace reference to renamed variable 'ubuf'
       by 'buffer'.  [Martin Kraemer]
  Changes with Apache 1.3.8 [not released]
    *) Flush the output buffer immediately after sending an error or redirect
       response, since the result may be needed by the client to abort a
       long data transfer or restart a series of pipelined requests.
       [Tom Vaughan <>, Roy Fielding]
    *) PORT: Improved compilation and DSO support on Sequent DYNIX/ptx.
       [Ian Turner <>] PR#4735
    *) Local struct mmap in http_core.c conflicted with system structure
       name on DYNIX -- changed to mmap_rec.  [Roy Fielding] PR#4735
    *) Added updated mod_digest as modules/experimental/mod_auth_digest.
       [Ronald Tschalär <>]
    *) Fix a memory leak where the module counts were getting messed
       up across restarts.  [David Harris <>]
    *) CIDR addresses such as a.b.c.d/24 where d != 0 weren't handled
       properly in mod_access.
       ["Paul J. Reder" <>] PR#4770
    *) RewriteLock/RewriteMap didn't work properly with virtual hosts.
       [Dmitry Khrustalev <>] PR#3874
    *) PORT: Support for compaq/tandem/com.
       [Michael Ottati <>, dirkx]
    *) Added SHA1 password encryption support to easy migration from 
       Netscape servers. See support/SHA1 for more information.
       Caused the separation of ap_md5.c into md5, sha1 and a general
       ap_checkpass.c with just a validate_passwd routine. Added a
       couple of flags to support/htpasswd. Some reuse of the to64()
       function; hence renamed to ap_to64().
       [Dirk-Willem van Gulik, Clinton Wong <>]
    *) Change for EBCDIC platforms (TPF and BS2000) to correctly deal
       with ASCII/EBCDIC conversions in "ident" query.
       [David McCreedy <>]
    *) Get rid of redefinition warning on MAC_OS_X_SERVER platform.
       Change "Power Macintosh" to Power* so if uname prints "Power Book"
       we're still happy on Rhapsody platforms.  [Wilfredo Sanchez]
    *) Fix SIGSEGV on some systems because the Vary fix below included
       a call to table_do with a variable argument list that was not
       NULL terminated.  Replaced with better implementation. [Roy Fielding]
  Changes with Apache 1.3.7 [not released]
    *) The "Vary" response header field is now sanitised right before
       the header is sent back to the client.  Multiple "Vary" fields
       are combined, and duplicate tokens (e.g., "Vary: host, host" or
       "Vary: host, negotiate, host, accept-language") are reduced to
       single instances.  This is a better solution than the force-no-vary
       one (which is still valid for clients that can't cope with Vary
       at all).  [Dean Gaudet, Roy Fielding, Ken Coar] PR#3118
    *) Portability changes for BeOS. [David Reid]
    *) Link DSO's with "gcc -shared" instead of "ld -Bshareable" at 
       least on Linux and FreeBSD for now.  
       [Rasmus Lerdorf]
    *) Win32: More apache -k restart work. Restarts are now honored
       immediately and connections in the listen queue are -not- lost.
       This is made possible by the use of the WSADuplicateSocket()
       call.  The listeners are opened in the parent, duplicated, then
       the duplicates are passed to the child. The original listen sockets 
       are not closed by the parent across a restart, thus the listen queue 
       is preserved.
       [Bill Stoddard <>]
    *) Fix handling of case when a client has sent "Expect: 100-continue"
       and we are going to respond with an error, but get stuck waiting to
       discard the body in the pointless hope of preserving the connection.
       [Roy Fielding, Joe Orton <>] PR#4499, PR#3806
    *) Fix 'configure' to work correctly with SysV-based versions of
       'tr' (consistent with Configure's use as well). [Jim Jagielski]
    *) apxs: Add "-S var=val" option which allows for override of CFG_*
       built-in values. Add "-e" option which works like -i but doesn't
       install the DSO; useful for editing httpd.conf with apxs. Fix
       editing code so that multiple invocations of apxs -a will not
       create duplicate LoadModule/AddModule entries; apxs can now be
       used to re- enable/disable a module.  [Wilfredo Sanchez]
    *) Win32: Update the server to use Winsock 2. Specifically, link with
       ws2_32.lib rather than wsock32.lib.  This gives us access to 
       WSADuplcateSocket() in addition to some other enhanced comm APIs.
       Win 95 users may need to update their TCP/IP stack to pick up
       Winsock 2. (See
       [Bill Stoddard]
    *) Win32: Redirect CGI script stderr (script debug info) into the 
       error.log when CGI scripts fail. This makes Apache on Win32 
       behave more like Unix.      
       [Bill Stoddard]
    *) Fixed `httpd' usage display: -D was missing.
       [Ralf S. Engelschall] PR#4614
    *) Fix `make r' test procedure in src/regex/: ap_isprint was not found.
       [Ralf S. Engelschall] PR#4561, PR#4562
    *) OS/2: Fix problem with accept lock semaphores where server would die with
       "OS2SEM: Error 105 getting accept lock. Exiting!" 
       [Brian Havard] PR#4505
    *) Add DSO support for DGUX 4.x using gcc. Tested on x86 platforms.
       [Randy Terbush <>]
    *) Add the new mass-vhost module (mod_vhost_alias.c) developed and
       used by Demon Internet, Ltd. [Tony Finch <>]
    *) Better GCC detection for DSO flags under Solaris 2 where the `cc' 
       command potentially _is_ GCC. [Ralf S. Engelschall]
    *) Fix apxs build issues on AIX 
       [Rasmus Lerdorf <>]
    *) DocumentRoot Checking: Under previous versions, when Apache
       first started up, it used to do a stat of each DocumentRoot to
       see if it existed and was a directory. If not, then an error
       message was printed. THIS HAS BEEN DISABLED. If DocumentRoot
       does not exist, you will get error messages in error_log. If
       the '-t' command line option is used (to check the configuration)
       the check of DocumentRoot IS performed. An additional command
       line option, '-T', has been added if you want to avoid the
       DocumentRoot check even when checking the configuration.
       [Jim Jagielski]
    *) Win32: The query switch "apache -S" didn't exit after showing the
       vhost settings. That was inconsistent with the other query functions.
       [Bill Stoddard - Fixed by Martin on Unix in 1.3.4]
    *) Win32: Changed behaviour of apache -k restart. 
       Previously, the server would drain all connections in the stack's
       listen queue before honoring the restart. On a busy server, this
       could take hours.  Now, a restart is honored almost immediately. 
       All connections in Apache's queues are handled but connections in 
       the stack's listen queue are discarded. Restart triggered by 
       MaxRequestPerChild is unchanged.
       [Bill Stoddard <>]
    *) Win32: Eliminated unnecessary call to wait_for_multiple_objects in
       the accept loop. Good for a 5% performance boost. Cleaned up 
       parent/child process management code. 
       [Bill Stoddard <>]
    *) Added ceiling on file size for memory mapped files.
       [John Giannandrea <>] PR#4122
    *) Fix ndbm.h include problems with brain-dead glibc >= 2.1 which 
       has ndbm.h in a non-standard db1/ subdir. PR#4431, PR#4528
       [Henri Gomez <>, Ralf S. Engelschall] 
    *) Determine AP_BYTE_ORDER for ap_config_auto.h and already
       use this at least for Expat. [Ralf S. Engelschall]
    *) Allow .module files to specify libraries with Lib:.
       [Ben Laurie]
    *) Allow SetEnvIf[NoCase] to test environment variables as well
       as header fields and request attributes.  [Ken Coar]
    *) Fix mod_autoindex's handling of ScanHTMLTitles when file
       content-types are "text/html;parameters".  [Ken Coar]  PR#4524
    *) Remove "mxb" support from mod_negotiation -- it was a draft feature
       never accepted into any standard, and it opens up certain DoS
       attacks.  [Koen Holtman <>]
    *) TestCompile updated. We can now run programs and output the
       results during the Configure process. [ Jim Jagielski]
    *) The source is now quad (long long) aware as needed. Specifically,
       the Configure process determines the correct size of off_t and
       *void. When the OS/platform/compiler supports quads, ap_snprintf()
       provides for the 'q' format qualifier (if quads are not available,
       'q' is silently "demoted" to long). [Jim Jagielski]
    *) When the username or password fed to htpasswd is too long, include the
       size limit in the error message.  Also report illegal characters
       (currently only ':') in the username.  Add the size restrictions
       to the man page.  [Ken Coar]
    *) Fixed the configure --without-support option so it doesn't result in
       an infinite loop.  [Marc Slemko]
    *) Piped error logs could cause a segfault if an error occured
       during configuration after a restart.
       [Aidan Cully <>] PR#4456
    *) If a "Location" field was stored in r->err_headers_out rather
       than r->headers_out, redirect processing wouldn't find it and
       the server would core dump on ap_escape_html(NULL).  Check both
       tables and raise HTTP_INTERNAL_SERVER_ERROR with a log message
       if Location isn't set.  [Doug MacEachern, Ken Coar]
    *) Add RULE_EXPAT, the src/lib/ directory structure, and a modified copy
       of the Expat 1.0.2 distribution. [Greg Stein]
    *) Replace regexec() calls with calls to a new API stub function
       ap_regexec().  This solves problems with DSO modules which use the regex
       library. [Jens-Uwe Mager <>, Ralf S. Engelschall]
    *) Add 'Request_Protocol' special keyword to mod_setenvif so that
       environment variables can be set according to the protocol version
       (e.g., HTTP/0.9 or HTTP/1.1) of the request.  [Ken Coar]
    *) Add DSO support for OpenStep (Mach 4.2) platform.
       [Ralf S. Engelschall, Rex Dieter <>] PR#3997
    *) Fix sed regex for generating ap_config_auto.h in src/Configure.
       [Jan Gallo <>] PR#3690, PR#4373
    *) Switch to /bin/sh5 in APACI on Ultrix and friends to avoid problems with
       their brain-dead /bin/sh. [Ralf S. Engelschall] PR#4372
    *) Better DSO flags recognition on NetBSD platforms using ELF.
       [Todd Vierling <>] PR#4310
    *) Always log months in english format for %t in mod_log_config.
       [Petr Lampa <>] PR#4366, 679
    *) Support for server-parsed and multiview-determined ReadmeName and
       HeaderName files in mod_autoindex. Removed the restriction on
       "/"s in ReadmeName and HeaderName directives since the *sub_req*
       routines will deal with the access issues. (It's now possible to
       have {site|group|project|customer|...} wide readmes and headers.)
       [Raymond S Brand <>, Ken Coar] PR#1574, 3026, 3529,
       3569, 4256
    *) When stat() fails, don't assume anything about the contents of
       the struct stat.  [Ed Korthof <>]
    *) It's OK for a semop to return EINTR, just loop around and try
       again.  [Dean Gaudet]
    *) Fix configuration engine re-entrant hangups, which solve a
       handful of problems seen with mod_perl <Perl> configuration sections
       [Salvador Ortiz Garcia <>]
    *) Mac OS and Mac OS X Server now use the appropriate custom layout
       by default when building with APACI; allow for platform-specific
       variable defaults in configure. [Wilfredo Sanchez]
    *) Do setgid() before initgroups() in http_main; some platforms
       zap the grouplist when setgid() is called.  This was fixed in
       suexec earlier, but the main httpd code missed the change.
       [Rob Saccoccio <>]  PR#2579
    *) Add recognition of .tgz as a gzipped tarchive.
       [Bertrand de Singly <>]  PR#2364
    *) mod_include's fsize/flastmod should allow only relative paths, just
       like "include file".  [Jaroslav Benkovsky <>]
    *) OS/2: Add support for building loadable modules using DLLs.
       [Brian Havard]
    *) Add iconsdir, htdocsdir, and cgidir to config.layout.
       [Wilfredo Sanchez]
    *) Fix minor but annoying bug with the test for Configuration.tmpl
       being newer than Configuration so that it is less likely to fail
       when using APACI and shadow sources. [Wilfredo Sanchez]
    *) PORT: Add initial support for Mac OS (versions 10.0 and
       greater). Use Mac OS X Server layout for now. Clean up dyld code
       in unix/os.c, and don't install the dyld error handlers, which
       are no longer needed in Mac OS. [Wilfredo Sanchez]
    *) Rename Rhapsody layout to "Mac OS X Server". Change install
       locations to appropriate ones for user-built (as opposed to
       system) installs. [Wilfredo Sanchez]
    *) Modify mod_autoindex's handling of AddDescription so that the
       behaviour matches the documentation.  [Ken Coar] PR#1898, 3072.
    *) Add functionality to the script created by to use tar when copying distribution files to the
       serverroot. This allows upgrading an existing installation
       without nesting the new distribution in the old.
 now detects the local perl5 path to install
       apxs and dbmmanage with proper path to perl interpreter.
       Add an install-binsupport target which copies the source files
       for apxs and dbmmanage to bindist to allow these scripts to
       be properly installed relative to the destination serverroot.
       [Randy Terbush, Covalent Technologies,]
    *) Fix intermittent SEGV in ap_proxy_cache_error() in
       src/modules/proxy_util.c where a NULL filepointer and
       temporary filename were closed and unlinked.
       [Graham Leggett <>,
       Tim Costello <>] PR#3178
    *) Fix inconsistent error messages reported by mod_proxy.
       [Graham Leggett <>]
    *) OS/2: Fix terminating CGIs that aren't compiled by EMX GCC when a 
       connection is aborted.  [Brian Havard]
    *) Force the LANG envariable to the known state of "C" so that we
       have assurance about how string manipulators (e.g., tr) will
       function.  [Ken Coar]  PR#1630
    *) Add a directive to allow customising of the tracking cookie name.
       [Ken Coar]  PR#2921, 4303
    *) Add "force-no-vary" envariable to allow servers to work around
       clients that choke on "Vary" fields in the response header.
       [Ken Coar, Dmitry Khrustalev <>]  PR#4118
    *) Fixed a bug in mod_dir that causes a child process will infinitely
       recurse when it attemps to handle a request for a directory wnd the
       value of the DirectoryIndex directive is a single dot. Also likely
       to happen for anyother values of DirectoryIndex that will map back
       to the same directory. The handler now only considers regular files
       as being index candidates. No PR#s found.
       [Raymond S Brand <>]
    *) Ease configuration debugging by making TestCompile fall back to
       using "make" if the $MAKE variable is unset [Martin Kraemer]
    *) Fixed the ServerSignature directive to work as documented.
       [Raymond S Brand <>] PR#4248
    *) Add "opt" (SysV-style) layout to config.layout. [Raymond S Brand
    *) Add APACI --without-execstrip option which can be used to disable the
       stripping of executables on installation.  This is very important for DSO
       and debugging situations. [Ralf S. Engelschall]
    *) Add support for OS/2 (case insenstive filesystem, .exe suffix, etc)
       to APACI files and related scripts. 
       [Yitzchak Scott-Thoennes <>, Ralf S. Engelschall] PR#4269
    *) Add support for standalone mode in TPF
       [Joe Moenich <>]
    *) Fix number of bytes copied by read_connection() in src/support/ab.c
       [Jim Cox <>] PR#4271
    *) Fix special RewriteCond "-s" pattern matching.
       [Bob Finch <>]
    *) Fix value quoting in src/Configure script for ap_config_auto.h 
       [Paul Sutton <>]
    *) Make sure RewriteLock can be used only in the global context, (i.e.
       outside of any <VirtualHost> sections) because it's a global facility of
       the rewrite engine. [Ralf S. Engelschall]
    *) Fix the ownership delegation for proxy directory under `make install'.
       [Ralf S. Engelschall]
    *) APACI would not correctly build suexec. [Maria Verina
       <>] PR#4260
    *) mod_mime_magic passed only the first 4k of a file to
       uncompress/gzip, but those tools sometimes do not produce
       any output unless a sufficient portion of the compressed
       file is input.  Change to pass the entire file -- but
       only read 4k of output.
       [Marcin Cieslak <>] PR#4097
    *) "IndexOptions None" generated extra spaces at the end of each
       line.  [] PR#3770
    *) The "100 Continue" response wasn't being sent after internal
       redirects. [Jose KAHAN <>] PR#3910, 3806, 3575
    *) When padding the name with spaces for display, mod_autoindex would
       count &, <, and > in their escaped width, messing up the display.
       [Dean Gaudet] PR#4075, 3758
    *) PORT: fixed a compilation problem on NEXT.
       [Jacques Distler <>] PR#4130
    *) r->request_time wasn't being set properly in certain error conditions.
       [Dean Gaudet] PR#4156
    *) PORT: deal with UTS compiler error in http_protocol.c
       [Dave Dykstra <>] PR#4189
    *) Add ap_vrprintf() function.  [John Tobey <>] PR#4246
    *) Fix the mod_mime hash table to work properly with locales other
       than C.  [Dean Gaudet] PR#3427
    *) Fix a memory leak which is exacerbated by certain configurations.
       [Dean Gaudet] PR#4225
    *) Prevent clobbering saved IFS values in APACI. [Jim Jagielski]
    *) Fix buffer overflows in ap_uuencode and ap_uudecode pointed out
       by "Peter 'Luna' Altberg <>" and PR#3422
       [Peter 'Luna' Altberg <>, Ronald Tschalär]
    *) Make {Set,Unset,Pass}Env per-directory instead of per-server.
       [Ben Laurie]
    *) Correct an apparent typo: on the Windows and MPE platforms, the
       htpasswd utility was limiting passwords to only 8 characters.
       [Ken Coar]
    *) EBCDIC platforms: David submitted patches for two bugs in the
       MD5 digest port for EBCDIC machines:
       a) the htdigest utility overwrote the old contents of the digest file
       b) the Content-MD5 header value (ContentDigest directive) was wrong
       when the returned file was not converted from EBCDIC, but was a
       binary (e.g., image file) in the first place.
       [David McCreedy <>]
    *) support/htpasswd now permits the password to be specified on the
       command line with the '-b' switch.  This is useful when passwords
       need to be maintained by scripts -- particularly in the Win32
       environment.  [Ken Coar]
    *) Win32: Win32 multiple services patch. Added capability to install and
       run multiple copies of apache as individual services.
       Example 1:
       apache -n apache1 -i -f c:/httpd.conf
          Installs apache as service 'apache1' and associates c:/httpd.conf
          with that service.
       net start apache1
          Starts apache1 service.
       net stop apache1
          Stops apache1 service
       Example 2:
       apache -n apache2 -i
          Installs apache as service 'apache2'. httpd.conf is located under
          the default server root (/apache/conf/httpd.conf).
       net start apache2
          Starts apache2 service.
       Example 3:
       apache -n apache3 -i -d c:/program files/apache
          Install apache as service 'apache3' and sets server root to
          c:/program files/apache.
       Example 4:
       apache -n apache2 -k restart
          Restart apache2 service 
       [Keith Wannamaker, Ken Parzygnat, Bill Stoddard]
    *) Correct the signed/unsigned character handling for the MD5 routines;
       mismatches were causing compilation problems with gcc -pedantic and
       in the TPF cross-compilation.  [Ken Coar]
    *) OS/2: Rework CGI handling to use spawn*() instead of fork/exec, achieving
       a roughly 5 fold speed up. [Brian Havard]
    *) proxy ftp: instead of using the hardwired string "text/plain" as
       a fallback type for files served by the ftp proxy, use the
       ap_default_type() function to determine the configured type.
       This allows for special configurations like
  	<Directory proxy:>
  	DefaultType gargle/blurb
       Additionally, add the Content-Encoding: header to FTP proxy replies
       when the encoding is defined (by the AddEncoding directive).
       Because it was missing, it was almost impossible to browse compressed
       files using the FTP proxy (works now perfectly in Communicator).
       The ftp proxy now also returns the Date: and Server: header lines (if not
       much else... This code is "somewhat" broken) like normal requests do.
       [Martin Kraemer]
    *) Be more smart in APACI's configure script when determining the UID/GID
       for User/Group directives and use the determined UID/GID to initialize
       the permissions on the proxycachedir.
       [Dirk-Willem van Gulik, Ralf S. Engelschall]
    *) Changed the forking-prior-to-cleanup in the proxy module to first
       check wether it actually needs to collect garbage. This reduces 
       the number of fork()s from one/request to just the odd one an hour.
       [Dirk-Willem van Gulik]
    *) Added proxy, auth and header support to src/support/ab.c. Added a
       README file to src/support/
       [Dirk-Willem van Gulik]
    *) Don't hard-code the path to AWK in --shadow bootstrapping Makefile.
       [Ralf S. Engelschall] PR#4050
    *) Add support for DSO module compilation on BSD/OS 3.x.
       [Randy Terbush, Covalent Technologies]
    *) Fix sed-substitutions in `make install': path elements like `httpd/conf'
       (for instance from an APACI configure --sysconfdir=/etc/httpd/conf
       option) were substituted with $(TARGET).conf, etc. Same for other strings
       with dots where the dot wasn't matched as plain text. 
       [Ralf S. Engelschall]
    *) PORT: Add support for FreeBSD 4.x [Ralf S. Engelschall]
    *) Fix verbose output of APACI configure (option -v) 
       [Martin Kraemer, Ralf S. Engelschall]
  Changes with Apache 1.3.6
    *) Removed new PassAllEnv code due to DSO problems. [Lars Eilebrecht]
  Changes with Apache 1.3.5 [not released]
    *) M_INVALID needed a value within the scope of METHODS so that unknown
       methods can be access controlled.  [Roy Fielding] PR#3821
    *) Added PassAllEnv; makes server's entire environment available
       to CGIs and SSIs executed within directive's scope.  [Ken Coar]
    *) ap_uuencode() always added two trailing '='s and encoding of
       8 bit characters on a machine with signed char may produced
       incorrect results. Additionally ap_uuencode() should now
       work correctly on EBCDIC platforms.
       [Ronald Tschalär <>] PR#3411
    *) WIN32: Binary installer now runs the configuration DLL before
       the reboot prompt (which is only given if MSVCRT.DLL system
       DLL is new or updated). This should avoid the configuration
       directory being empty after installation. [Paul Sutton]
       PR#3767, 3800, 3827, 3850, 3900, 3953, 3988
    *) WIN32: Binary installer now creates Start menu options to start
       and stop Apache as a console application and to uninstall
       the Apache service on NT. [Paul Sutton] PR#3741
    *) WIN32: Apache.exe now contains an icon. [Paul Sutton]
    *) PORT: Switch back to using fcntl() locking on Linux -- instabilities
       have been reported with flock() locking (probably related to kernel
       version).  [Dean Gaudet] PR#2723, 3531
    *) Using APACI, the main config file (usually httpd.conf) was
       not being adjusted as $(TARGET).conf. [Wilfredo Sanchez
    *) PORT: AIX does not require the SHARED_CODE "hack"
       [Ryan Bloom <>]
    *) Set-Cookie headers were being doubled up for some CGIs by the O(n^2)
       avoidance code added in 1.3.3.
       [Dean Gaudet, Jeff Lewis <>] PR#3872
    *) ap_isxdigit was somehow neglected when adding the ap_isfoo() macros
       for 8-bit safeness.  [Dean Gaudet]
    *) PORT: Use -fPIC instead of -fpic on Solaris and SunOS for compiling DSOs
       because SPARCs have a small machine-specific maximum size for the Global
       Offset Table which is often exceeded when compiling one of the larger
       third-party modules with Apache. [Peter Urban <>] PR#3977
    *) Move the directive `ExtendedStatus' in httpd.conf-dist-win _after_ the
       DSO/DLL section because it's a directive from mod_status and isn't
       available before the DLL of mod_status is loaded.
       [Martin POESCHL <>] PR#3936
    *) SECURITY: Fix a bug in the calculation of the buffer size for the line 
       continuation facility in Apache's configuration files which could 
       lead to a buffer overflow situation.
       [Thomas Devanneaux <>] PR#3617
    *) Make documentation and error messages of APACI's --activate-module=FILE 
       option more clear. [Jan Wolter <>] PR#3995
    *) Fix the gcc version check (for enabling the `inline' facility) to 
       really support all future gcc versions >= 2.7 until we know more.
       [John Tobey <>] PR#3983
    *) Let APACI's configure script correctly complain for unknown --enable-XXX
       and --disable-XXX options. [Ralf S. Engelschall] PR#3958
    *) Link the shared core bootstrap program (``Rule SHARED_CORE=yes'') also
       against libap.a and use its ap_snprintf() instead of sprintf() to avoid
       possible buffer overflows. [Ralf S. Engelschall]
    *) Remove no longer used non-API function ap_single_module_init().
       [Ralf S. Engelschall]
    *) Add Apple's Mac OS X Server Layout "Rhapsody" to config.layout.
       [Wilfredo Sanchez]
    *) Add cgidir, htdocsdir, iconsdir variables to Makefile.tmpl in order
       to make platform installations easier.  [Wilfredo Sanchez]
    *) In configure, do not append the target name to the directory path if
       the path already contains "apache".  [Ralf S. Engelschall]
    *) SIGPIPE is now ignored by the server core.  The request write routines
       (ap_rputc, ap_rputs, ap_rvputs, ap_rwrite, ap_rprintf, ap_rflush) now
       correctly check for output errors and mark the connection as aborted.
       Replaced many direct (unchecked) calls to ap_b* routines with the
       analogous ap_r* calls.  [Roy Fielding]
    *) Enhanced mod_rewrite's mapfile handling: The in-core cache for text and
       DBM format mapfiles now uses a 4-way hash table with LRU functionality.
       Furthermore map lookups for non-existent keys are now cached as well.
       Additionally "txt" maps are now parsed with simple string functions
       instead of using ap_pregcomp(). As a side effect a bug that prevented
       the usage of keys containing the "," character was fixed.
       The changes drastically improve the performance when large rewrite maps
       are in use.
       [Michael van Elst <>, Lars Eilebrecht] PR#3160
    *) Added ap_sub_req_method_uri() for doing a subrequest with a method
       other than GET, and const'd the definition of method in request_rec.
       [Greg Stein]
    *) Use proper pid_t type for saving PIDs in alloc.c.  [John Bley]
    *) Replaced use of WIN32 define with HAVE_DRIVE_LETTERS to indicate
       when the OS allows a DOS drive letter within pathnames.  [Brian Havard]
    *) Add %V to mod_log_config, this logs the hostname according to the
       UseCanonicalName setting (this is the pre-1.3.4 behaviour of
       %v).  Useful for mass vhosting.  [Tony Finch <>]
    *) Add support for \n and \t to mod_log_config, can be used to produce
       more reliable logs with multiline entries.  [Tony Finch <>]
    *) Fixed a few compiler nits.  [John Bley <>]
    *) Added informative error messages for failed munmap() and fseek() calls
       in http_core.c. [John Bley, Roy Fielding]
    *) Added some informative error messages for some failed malloc()
       calls. [John Bley <>, Jim Jagielski]
    *) OS/2 ap_os_canonical_filename()'s behaviour is improved: ap_assert()
       is removed. This allows <Directory proxy:*> directives to work and
       prevents invalid requests from killing the process.
       [Brian Havard <>]
    *) Reorganised FAQ document.
       [Joshua Slive <>] PR#2497
    *) src/support/: The ApacheBench benchmark program was overhauled by
       David N. Welton: you can now have it generate an HTML TABLE, presumably
       for integration into other HTML sources. David updated the ab man page
       as well and added some missing descriptions. Thanks!
       [David N. Welton <>]
    *) Win32: The filename validity checker now allows filenames containing
       characters in the range 0x80 to 0xff (for example accented characters).
       [Paul Sutton] PR#3890
    *) Added conditional logging based upon environment variables to
       mod_log_config.  mod_log_referer and mod_log_agent
       are now deprecated.  [Ken Coar]
    *) Allow apache acting as a proxy server to relay the real
       reason of a failure to a client rather than the "internal
       server error" it does currently. The general exposure mechanism
       can be triggered by any module by setting the "verbose-error-to"
       note to "*"; this allows more than just proxy errors to be exposed.
       [Cliff Skolnick, Roy Fielding, Martin Kraemer] Related to PR#3455, 4086
    *) Moved man pages for ab and apachectrl to section 8.
       [Wilfredo Sanchez, Roy Fielding]
    *) Added -S option to so that options can be passed to
       strip on some platforms. [Ralf S. Engelschall, Wilfredo Sanchez]
    *) Tweak modules Makefile generated by Configure so that it handles
       the test case of no modules being selected. []
    *) Added a <LimitExcept method ...> sectioning directive that allows
       the user to assign authentication control to any HTTP method that
       is *not* given in the argument list; i.e., the logical negation
       of the <Limit> directive.  This is particularly useful for controlling
       access on methods unknown to the Apache core, but perhaps known by
       some module or CGI script. [Roy Fielding, Tony Finch]
    *) Prevent apachectl from complaining if the PIDFILE exists but
       does not contain a process id, as might occur if the server is
       being rapidly restarted. [Wilfredo Sanchez]
    *) Win32: Add global symbols missing from ApacheCore.def. [Carl Olsen]
    *) Entity tag comparisons for If-Match and If-None-Match were not being
       performed correctly -- weak tags might cause false positives.  Also,
       strong comparison wasn't properly enforced in all cases.
       [Roy Fielding, Ken Coar, Dean Gaudet] PR#2065, 3657
    *) OS/2: Supply OS/2 error code instead of errno on semaphore errors.
       [Brian Havard]
    *) Work around a bug in Lynx regarding its sending "Negotiate: trans"
       even though it doesn't understand TCN.  [Koen Holtman, Roy Fielding]
    *) Added ap_size_list_item(), ap_get_list_item(), and ap_find_list_item()
       to util.c for parsing an HTTP header field value to extract the next
       list item, taking into account the possible presence of nested comments,
       quoted-pairs, and quoted-strings. ap_get_list_item() also removes
       insignificant whitespace and lowercases non-quoted tokens.
       [Roy Fielding] PR#2065
    *) proxy: The various calls to ap_proxyerror() can return HTTP/1.1 status
       code different from 500. This allows the proxy to, e.g., return
       "403 Forbidden" for ProxyBlock'ed URL's. [Martin Kraemer] Related to PR#3455
    *) Fix ordering of language variants for the case where the traditional
       negotiation algorithm is being used with multiple language variants
       and no Accept-Language. [James Treacy <>] PR#3299, 3688
    *) Do not round the TCN quality calculation to 5 decimal places,
       unlike RFC 2296, because the calculation might need 12 decimal places
       to get the right result.  [Roy Fielding]
    *) Remove unused code to disable transparent negotiation when
       negotiating on encoding only, as we now handle encoding too
       (though this is nonstandard for TCN), remove charset=ISO-8859-1
       fiddle from the fiddle-averse RVSA comparison, and fix bugs in
       some debugging statements within mod_negotiation. [Koen Holtman]
    *) Fixed a rare memory corruption possibility in mod_dir if the index
       file is negotiable and no acceptable variant can be found.
       [Dean Gaudet, Roy Fielding, Martin Kraemer]
    *) Win32: Add new config directive, ScriptInterpreterSource, to enable
       searching the Win32 registry for script interpreters.
       [Bill Stoddard]
    *) Win32: The compiled-in default filename for the error log is now
       error.log, which matches the default in the distributed httpd.conf.
       [Paul Sutton]
    *) Win32: Any error messages from -i or -u command line options are now
       displayed on the console output rather than sent to the error log.
       Also the "Running Apache..." message is not output unless Apache is
       going to serve requests. [Paul Sutton]
    *) Rework the MD5 authentication scheme to use FreeBSD's algorithm,
       and use a private significator ('$apr1$') to mark passwords as
       being smashed with our own algorithm.  Also abstract the password
       checking into a new ap_validate_password() routine.  [Ken Coar]
    *) Win32: The filename validity checker now allows "COM" but refuses 
       access to "COM1" through "COM4". This allows filenames such
       as "" to be served. [Paul Sutton] PR#3769.
    *) BS2000: Adapt to the new ufork() system call interface which will
       make subtasking easier on the OSD/POSIX mainframe environment.
       [Martin Kraemer]
    *) Add a compatibility define for escape_uri() -> ap_escape_uri() to
       ap_compat.h. [David White <>] PR#3725
    *) Make NDBM file suffix determination for mod_rewrite more accurate, i.e.
       use `.db' instead of `.pag' not only for FreeBSD, but also when
       the NDBM library looks like Berkeley-DB based.
       [Ralf S. Engelschall] PR#3773
    *) Add ability to handle DES or MD5 authentication passwords.
       [Ryan Bloom <rbb@Raleigh.IBM.Com>]
    *) Fix O(n^2) memory consumption in mod_speling.  [Dean Gaudet]
    *) SECURITY: Avoid some buffer overflow problems when escaping
       quoted strings.  (This overflow was on the heap and we believe
       impossible to exploit.)  [Rick Perry <>]
    *) Let src/Configure be aware of CFLAGS options starting with plus
       signs as it's the case for the HP/UX compiler.
       [Doug Yatcilla <>] PR#3681
    *) Remove the hard-wire of TAR=tar (we now check for gtar and gnutar first)
       and check to see if the tar we wind up with supports '-h'.
       [Jim Jagielski] PR#3671
    *) A consistent and conservative style for all shell scripts has been
       implemented. Basically, all shell string tests use the traditional
       hack of 'if [ "x$var" != "x" ]' or 'if [ "x$var" = "xstring" ]'
       to protect against bare null variable strings (ie: wrapping both
       sides with double quotes and prepending 'x'). 'x' was chosen
       because it's more universal and hopefully easier for old shell
       prgrammers, as well as being easier to search for in 'vi' (/x\$) :)
       [Jim Jagielski]
    *) The status module now prints out both the main server generation as
       well as the generation of each process. Also, the vhost info is
       printed with '?notable'. [Jim Jagielski]
    *) Move src/main/md5c.c to src/ap/ap_md5c.c; it's httpd-neutral
       and this makes its functions available to things in src/support.
       [Ken Coar]
  Changes with Apache 1.3.4
    *) Renamed macros status_drops_connection to ap_status_drops_connection
       and vestigial scan_script_header to ap_scan_script_header_err,
       mostly for aesthetic reasons. [Roy Fielding]
    *) The query switch "httpd -S" didn't exit after showing the
       vhost settings. That was inconsistent with the other query functions.
       [Martin Kraemer]
    *) Moved the MODULE_MAGIC_COOKIE from before the versions and
       filename to the end of the STANDARD_MODULE_STUFF.  Its
       presence at the beginning prevented reporting of the filename
       for modules compiled before 1 January 1999.  [Ken Coar]
    *) SECURITY: ap_os_is_filename_valid() has been added to Win32
       to detect and prevent access to special DOS device file names.
       [Paul Sutton, Ken Parzygnat]
    *) WIN32: Created new makefiles Makefile_win32.txt (normal build)
       and Makefile_win32_debug.txt (debug build) that work on Win95.
       Run each of the following from the src directory:
          nmake /f Makefile_win32.txt           # compiles normal build
          nmake /f Makefile_win32.txt install   # compiles and installs
          nmake /f Makefile_win32.txt clean     # removes compiled junk
          nmake /f Makefile_win32_debug.txt     # compiles debug build
          nmake /f Makefile_win32_debug.txt install
          nmake /f Makefile_win32_debug.txt clean
       [Roy Fielding]
    *) Added and helpers to make it easier for us
       to build binary distributions. [Lars Eilebrecht]
    *) IndexOptions SuppressColumnSorting only turned off making
       the column headers anchors; you could still change the display
       order by manually adding a '?N=A' or similar query string to the
       URL.  Now SuppressColumnSorting locks in the sort order so
       it can't be overridden this way.  [Ken Coar]
    *) Added IndexOrderDefault directive to supply a default sort order
       for FancyIndexed directory listings.  [Ken Coar] PR#1699
    *) Change the ap_assert macro to a variant that works on all platforms.
       [Richard Prinz <>] PR#2575
    *) Make sure under ELF-based NetBSD (now) and OpenBSD (future) we don't
       search for an underscore on dlsym() (as it's already the case
       for FreeBSD 3.0). [Todd Vierling <>] PR#2462
    *) Small fix for mod_env.html: The module was documented as to be _not_
       compiled into Apache per default, although it _IS_ compiled into 
       Apache per default. [Sim Harbert <>] PR#3572
    *) Instead of fixing a bug in the generation procedure for config.status (a
       backslash was missing) we remove the bug together with it's complete
       context because the special cases of the past can now no longer occur
       because of the recent magic for the --with-layout default.
       [Ralf S. Engelschall] PR#3590
    *) Make top-level Makefile aware of a parallel build procedures (make -j) by
       making sure the src/support/ tools are _forced_ to be build last (they
       depend on other libraries).
       [Markus Theissinger <>]
    *) Fix installation procedure: Now that os-inline.c is actually used (a
       recently fixed bug prevented this) we need to also install os-include.c
       in addition to os.h into the PREFIX/include/ location or building of
       module DSOs with APXS fails. [Ralf S. Engelschall] PR#3527
    *) Added MODULE_MAGIC_COOKIE as the first field in a module structure to
       allow us to distinguish between a garbled DSO (or even a file which isn't
       an Apache module DSO at all) and a DSO which doesn't match the current
       Apache API. [Ralf S. Engelschall] PR#3152
    *) Two minor enhancements to mod_rewrite: First RewriteRule now also
       supports the ``nocase|NC'' flag (as RewriteCond already does for ages) to
       match case insensitive (this especially avoids nasty patterns like
       `[tT][eE][sS][tT]'). Second two additional internal map functions
       `escape' and `unescape' were added which can be used to escape/unescape
       to/from hex-encodings in URLs parts (this is especially useful in
       combination with map lookups). 
       [Magnus Bodin, Ian Kallen, Ralf S. Engelschall]
    *) Renamed the macro escape_uri() to ap_escape_uri() which was
       forgotten (because it was a macro) in the symbol renaming process.
       [Ralf S. Engelschall]
    *) Fix some inconsistencies related to the scopes of directives. The only
       user visible change is that the directives `UseCanonicalName' and
       `ContentDigest' now use the (more correct) `Options' scope instead of
       (less correct) `AuthConfig' scope.  [Ralf S. Engelschall]
    *) Using DSO, the Server token was being mangled. Specifically, the
       module's token was being added first before the Apache token. This
       has been fixed. [Jim Jagielski]
    *) Major overhaul of mod_negotiation.c, part 2.
       - properly handle "identity" within Accept-Encoding.
       - allow encoded variants in RVSA negotiation and let them appear in
         the Alternates field using the non-standard "encoding" tag-list.
       - fixed both negotiation algorithms so that an explicitly accepted
         encoding is preferred over no encoding if "identity" is not
         included within Accept-Encoding.
       - added ap_array_pstrcat() to alloc.c for efficient concatenation
         of large substring sequences.
       - replaced O(n^2) memory hogs in mod_negotiation with ap_array_pstrcat.
       [Roy Fielding]
    *) Major overhaul of mod_negotiation.c, part 1.
       - cleanups to mod_negotiation comments and code structure
       - made compliant with HTTP/1.1 proposed standard (rfc2068) and added
         support for everything in the upcoming HTTP/1.1
         revision (draft-ietf-http-v11-spec-rev-06.txt).
           - language tag matching also handles tags with more than 2
             levels like x-y-z
           - empty Accept, Accept-Language, Accept-Charset headers are
             processed correctly; previously an empty header would make all
             values acceptable instead of unacceptable.
           - allowed for q values in Accept-Encoding
       - added support for transparent content negotiation (rfc2295 and
         rfc2296) (though we do not implement all features in these drafts,
         e.g. no feature negotiation).  Removed old experimental version.
       - implemented 'structured entity tags' for better cache correctness
         (structured entity tags ensure that caches which can deal with Vary
         will (eventually) be updated if the set of variants on the server
         is changed)
           - this involved adding a vlist_validator element to request_rec
           - this involved adding the ap_make_etag() function to the global API
       - modified guessing of charsets used by Apache negotiation algorithm 
         to guess 'no charset' if the variant is not a text/* type
       - added code to sort multiviews variants into a canonical order so that
         negotiation results are consistent across backup/restores and mirrors
       - removed possibility of a type map file resolving to another type map
         file as its best variant
       [Koen Holtman, Roy Fielding, Lars Eilebrecht] PR#3451, 3299, 1987
    *) RFC2396 allows the syntax http://host:/path (with no port number)
       but the proxy disallowed it (ap_proxy_canon_netloc()).
       [David Kristol <>] PR#3530
    *) When modules update/modify the file name in the configfile_t structure,
       syntax errors will report the updated name, not the original one.
       [Fabien Coelho <>] PR#3573
    *) Correct some filename case assumptions from WIN32 to
       CASE_BLIND_FILESYSTEM.  [Brian Havard <>]
    *) For %v log ServerName regardless of the UseCanonicalName
       setting (similarly for %p).  [Dean Gaudet]
    *) Configure was initializing the variables $OSDIR, $INCDIR and $SHELL
       rather late (too late for some invocations of TestCompile).
       This improves the make environment available to TestCompile and
       the *.module scripts. [Martin Kraemer]
    *) The hashbang emulation code in ap_execve.c would interpret
       #!/hashbang/scripts correctly, but failed to fall back to a
       standard shell for scripts which did NOT start with #!
       Now SHELL_PATH is started in these cases. [Martin Kraemer]
    *) PORT: Added the Cyberguard V2 port [Richard Stagg <>]
    *) Update APXS manual page: some -q option arguments were missing
       and another was incorrect. [Mark Anderson <>] PR#3553
    *) Cleanup the command line options: `-?' was documented to show
       the usage list but does it with an error because `?' is not a valid
       command. OTOH a lot of users expect `-h' to print such a usage list and
       instead are annoyed for ages by our huge unreadable list of directives.
       So we now changed the command line options this way:
       1. `-L' => `-R' 
          Intent: we need `-L' to be free, and `-R' for the DSO run-time path is
          very similar to the popular linker option.
       2. `-h' => `-L'
          Intent: while -l gives the small list of modules, -L now gives the
          large list of directives implemented by these modules.  This is also
          consistent with -v (short version info) and -V (large version info).
       3. `-?' => `-h' 
          Intent: it's now the expected option ;-)
       The manual page was adjusted accordingly. 
       [Ralf S. Engelschall] PR#2714
    *) Fixed problem of fclose() on an unopened file in suexec if LOG_EXEC
       wasn't defined.  [Rick Franchuk <>]
    *) Removed recently introduced bugs and disfigurements in APACI:
       o fixed argument line processing: using $args was broken: It was not
         initialized and using args="$args $apc_option" and even args="$args
         \"$apc_option\"" fails in the second processing round for any arguments
         containing whitespaces. The only correct way is to use the construct
         "$@" (but not possible here) or iterate _both_ times over the implicit
         argument line (no argument to for-loop) which is what we now use.
       o make --with-layout=Apache the default without creating
         redundancy (copying the --with-layout block in the argument parsing
         loop).  We achieve this by using the "$@" construct together with the
         `set' command to prepend --with-layout=Apache to the command line in
         case --with-layout is not used.
       o fixed auto-suffix handling now that config.layout exists.
         Paths which are auto-suffixed are marked with a trailing plus sign in
         config.layout and every path now can be marked this way (not only the
         four paths for which we do it currently).  Additionally the suffix is
         no longer a static one. Instead it's now `/<target>' where <target> is
         the argument of the --target option or per default `httpd'.
       o allow also tabs (and only spaces) where we match whitespaces
       o various fixes and cleanups related to used shell coding style
       o made Jim happy by replacing `Written by' with `Initially written by' ;-)
       o trimmed output of --help to fit into 80 columns
       [Ralf S. Engelschall]
    *) Added two new core API functions, ap_single_module_configure() and
       ap_single_module_init(), which are now used by mod_so to configure a module
       after loading. [Ralf S. Engelschall]
    *) PORT: Add defines for USE_FLOCK_SERIALIZED_ACCEPT and
       of ap_config.h to allow serialized accept for multiport listens.
       [Roy Fielding, Curt Sampson] PR#3120
    *) PORT: Fixed a misplaced #endif for NetBSD/OpenBSD section
       of ap_config.h that would skip several defines if DEFAULT_GROUP
       was overridden. [Roy Fielding]
    *) PORT: The I86 version of DGUX has support for strncasecmp and 
       strcasecmp, so allow it in ap_config.h. [Amiel Lee Yee] PR#3247
    *) Fix ordering of definitions in ap_config.h so that ap_inline is
       defined before it might be used. [Victor Khimenko]
    *) PORT: Add Dynamic Shared Object (DSO) support for BSDI (v4.0).
       [Tom Serkowski <>] PR#3453
    *) Make generation of src/Configuration.apaci more robust: It failed to
       differenciate between modules when one module name was a postfix of
       another (e.g. cgi vs. fastcgi). We now check for mod_XXX, libXXX and even
       just XXX (think about totally non-standard names like "apache_ssl", too).
       [Ralf S. Engelschall] PR#3380
    *) In src/Configure remove the SERVER_SUBVERSION support (already deprecated
       since 1.3b7) and make whitespace handling more robust (it failed horrible
       when whitespaces were present in the arguments of -D options).
       [Ralf S. Engelschall] PR#3240
    *) Add APACI --shadow=DIR variant (in addition to --shadow). This now first
       creates an external package shadow tree in DIR before the local build
       shadow tree is generated under DIR. This way one can have the extracted
       Apache distribution tree read-only on NFS or CDROM and still build Apache
       from these sources. An automatically triggered VPATH-like mechanism is
       provided through the TOP variable, too.
       [Ralf S. Engelschall, Wilfredo Sanchez <>]
    *) Fix negotiation so that a Vary response header is correctly 
       generated when, for a particular dimension, variants only vary
       in having or not having a value for that dimension. [Paul Sutton]
    *) Fix negotiation so that we prefer an encoded variant over an
       unencoded variant if the user-agent explicitly says it can
       accept that encoding. Previously we always preferred the unencoded
       [Paul Ausbeck <>, Paul Sutton] PR#3447
    *) Fix APXS tool: query variables LIBS_SHLIB and TARGET were not recognized
       and the usage page was inconsistent with the functionality and manpage.
       [Ralf S. Engelschall]
    *) Allow special options -Wc,xxx and -Wl,xxx on APXS compile/link command.
       They can occur multiple times and their arguments (`xxx') are passed AS
       IS to the compiler/linker command.  [Ralf S. Engelschall]
    *) Fixed possible (but harmless in practice) bug in the DBM lookup
       procedure of mod_rewrite: very long keys were truncated.
       [Ralf S. Engelschall]
    *) Added a generic --with-layout=[FILE:]ID option. ID here is a layout
       identifier, currently "Apache" and "GNU" are pre-defined in the file
       config.layout.  Custom layouts are possible by using FILE:ID as the
       argument where the layout ID is taken from FILE.
       The config.layout file consists of <Layout ID>..</Layout> sections
       where inside those sections "path_variable: path_value" pairs can be
       specified. These lines are converted to path_variable='path_value'.
    *) Add a DefaultLanguage directive so that files missing a language
       extension (e.g., .fr, .de) can be labelled as being some other
       default language. DefaultLanguage can appear in <Directory> and 
       <Files> containers as well as .htaccess files.  [Paul Sutton]
    *) Fix TARGET configuration when configuring and installing using
       APACI configure. TARGET now defines the basename of the configuration
       file, startup script, manual page, etc. log_error_core() now reports
       the server binary name given by argv[0]. TARGET can now also be defined
       with --target=TARGET parameter passed to APACI configure.
       [Ralf Engelschall, Randy Terbush]
    *) mod_include.c:handle_perl() now properly tests for OPT_INCNOEXEC
       rather than OPT_INCLUDES [Rainer Schoepf <>]
    *) ap_md5_binary() was using sprintf() rather than a table lookup
       to convert binary bytes to hex digits.
       [Ronald Tschalär <>] PR#3409
    *) Fix SEGV in TCN negotiation if no variants are acceptable.
       [Martin Plechsmid <>] PR#1987
    *) API: ap_exists_config_define() function is now "public" [Doug MacEachern]
    *) Fix documentation of `Action' directive: It can activate a CGI script
       when either a handler or a MIME content type is triggered by the request.
       [Andrew Pimlott <>] PR#3340
    *) Document the `add' command of `dbmmanage' in `dbmmanage.1' manpage.
       [David MacKenzie <>] PR#3394
    *) Ignore a "ErrorDocument 401" directive with a full URL and write a
       notice to the error log. It is not possible to send a 401 response
       and a redirect at the same time.  [Lars Eilebrecht]
    *) Fallback to native compilers for IRIX-32 platform. It seems that
       a gcc 2.8.1 compiled apache is logging client addresses with all
       bits set ( This is the second such problem caused
       by gcc 2.8.1 compiler. The first being broken semaphore locking.
       [Randy Terbush]
    *) Updated mime.types to reflect current Internet media types
       and include a URL to the registry.
       [Manoj Kasichainula, Roy Fielding] PR#2380, 2286, 2246
    *) SECURITY: Do a more complete check in mod_include to avoid 
       an infinite loop of recursive SSI includes.  [Marc Slemko] PR#3323
    *) Add APACI --suexec-docroot and --suexec-logfile options which can be
       used to set the document root directory (DOC_ROOT) and the suexec
       logfile (LOG_EXEC), respectively. Additionally the --layout option
       was changed to show more information about the suEXEC setup.
       [Lars Eilebrecht] PR#3316, 3357, 3361
    *) Added the last two WebDAV status codes of 424 (Failed Dependency)
       and 507 (Insufficient Storage) for use by third-party modules.
       [Roy Fielding]
    *) Enabled all of the WebDAV method names for use by third-party
       modules, Limit, and Script directives.  That includes PATCH,
       Improved mod_actions.c so that it can use any of the methods
       defined in httpd.h.  Added ap_method_number_of(method) for
       getting the internal method number.  [Roy Fielding]
    *) PORT: Add a port to the TPF OS. [Joe Moenich <> and
       others at IBM]
    *) Fix problems with handling of UNC names (e.g., \\host\path)
       on Win32.  [Ken Parzygnat <>]
    *) Rework os_canonical_*() on Win32 so it's simpler, more
       robust, and works.  [Ken Parzygnat <>]
       PR#2555, 2915, 3064, 3232
    *) Work around incomplete implementation of strftime on Win32.
       [Manoj Kasichainula, Ken Parzygnat <>]
    *) Move a typedef to fix compile problems on Linux with 1.x kernels.
       [Manoj Kasichainula] PR#3177
    *) PORT: Add a port to the Concurrent PowerMAX OS. [Tom Horsley
    *) WIN32: Log more explicit error messages if spawning an interpreted 
       script failed, including the command line used to attempt to execute 
       the interpreter and the Win32 error code returned.  [Marc Slemko]
    *) Disable sending of error-notes on a 500 (Internal Server Error) response
       since it often includes file path info.  Enable sending of error-notes
       on a 501 (Method Not Implemented).  [Roy Fielding] PR#3173
    *) http_config.c would respond with 501 (Method Not Implemented) if a
       content type handler was specified but could not be found, which
       should have been a 500 response.  Likewise, mod_proxy.c would responsd
       with a 501 if the URI scheme is unrecognized instead of the correct
       response of 403 (Forbidden).  [Roy Fielding]
    *) SECURITY: Eliminate DoS attack when a bad URI path contains what
       looks like a printf format escape.  [Marc Slemko, Studenten Net Twente]
    *) Fix in mod_autoindex: for files where the last modified time stamp was
       unavailable, an empty string was printed which was 2 bytes short.
       The size and description columns were therefore not aligned correctly.
       [Martin Kraemer] (no PR#)
    *) Update BS2000 OS code to work with recent versions. Starting with
       release A17, the child fork() must be replaced by a _rfork().
       (BS2000 only) [Martin Kraemer]
    *) Add the actual server_rec structure of the specific Vhost to the
       scoreboard file and avoid a string copy (as well as allow some
       further future enhancements). [Harrie Hazewinkel
    *) Add APACI --permute-module=foo:bar option which can be used to
       on-the-fly/batch permute the order of two modules (mod_foo and mod_bar)
       in the Configuration[.apaci] file. Two special and important variants are
       supported for the option argument: first BEGIN:foo which permutes module
       mod_foo with the begin of the module list, i.e. it `moves' the module to
       the begin of the list (gives it lowest priority).  And second foo:END
       which permutes mod_foo with the end of the module list, i.e. it `moves'
       the module to the end of the list (gives it highest priority). 
       [Ralf S. Engelschall]
    *) Fix problem with 'apache -k shutdown' and startup event
       synchronisation (Win32).  [Ken Parzygnat <>]
    *) The config parser wasn't correctly noticing a missing '>'
       on container start lines (e.g., it wouldn't spot
       "<Directory /" as a syntax error).  [Ryan Bloom <>]
    *) Add a 'RemoveHandler' directive which will selectively remove
       all handler associations for the specified file extensions.
       [Ryan Bloom <>] PR#1799.
    *) Properly handle & allow "nul" and ".*/null" in AccessConfig and
       ResourceConfig directives on Win32.  Also add a note to the effect
       of 'useless User directive ignored on Win32' to the errorlog if
       a User directive is encountered on Win32.
       [Ken Parzygnat <>] PR#2078, 2303.
    *) Fix multiple whitespace handling in imagemaps for mod_imap which was
       broken since Apache 1.3.1 where we took out compressing of multiple
       spaces in ap_cfg_getline().
       [Ivan Richwalski <>] PR#3249
    *) Fix Berkeley-DB/2.x support in mod_auth_db: The data structures were not
       initialized correctly and the db_open() call used an invalid mode
       parameter. [Ron Klatchko <>] PR#3171
    *) PORT: DSO support for UnixWare 7
       [Ralf S. Engelschall, Ron Record <>]
    *) Merge the contents of the {srm,access}.conf-dist* files into the
       httpd.conf-dist* files.  The srm and access files now contain
       only comments, and httpd.conf has all the combined contents in
       a rational order.  [Ken Coar]
    *) PORT: DSO/ELF support for FreeBSD 3.0.
       [Ralf S. Engelschall, Dirk Froemberg <ibex@physik.TU-Berlin.DE>]
    *) Add a "default-handler" handler that calls the default_hander()
       function which is normally called for static content.  This allows
       you to override a specific handler.  [Marc Slemko]
    *) Further simplify checking for absolute paths by replacing an
       hard-coded syntax check with a call to a routine we already created to
       do this.  [Ken Parzygnat <>] PR#2976, 3074
    *) Log an error if we encounter a malformed "require" directive 
       in mod_auth if we know that we know that no other module can
       deal with it.  [Marc Slemko]
    *) Remove ap_private_extern method of hiding conflicting symbols
       on the NEXT platform because it is not correct for all versions,
       and the versions for which it is correct are unknown.
       [Wilfredo Sanchez <>]
    *) Fix inheritance of IndexOptions NameWidth and remove unintended
       restriction on +NameWidth, +IconHeight, and +IconWidth.  [Ken Coar]
    *) Fix per-directory config merging for cases in which a 500 error
       is encountered in an .htaccess file somewhere down the tree.
       [Ken Coar]  PR#2409
    *) Minor performance improvement to ap_escape_html(). [Roy Fielding]
    *) Fixed a segmentation violation in mod_proxy when a response is
       non-cachable.  [Roy Fielding, traced by Doug Bloebaum]. PR#2950, 3056
  Changes with Apache 1.3.3
    *) Added a complete implementation of the Expect header field as
       specified in rev-05 of HTTP/1.1.  Disabled the 100 Continue
       response when we already know the final status, which is mighty
       useful for PUT responses that result in 302 or 401. [Roy Fielding]
    *) Remove extra trailing whitespace from the getline results as part
       of the protocol processing, which is extra nice because it works
       between continuation lines, is almost no cost in the normal case
       of no extra whitespace, and saves memory. [Roy Fielding]
    *) Added new HTTP status codes and default response bodies from the
       revised HTTP/1.1 (307, 416, 417), WebDAV (102, 207, 422, 423), and 
       HTTP Extension Framework (510) specifications.  Did not add the
       WebDAV 424 and 425 codes because they are bogus.  We don't use any
       of these codes yet, but they are now available to 3rd-party modules.
       [Roy Fielding]
    *) Fix a possible race condition between timed-out requests and the
       ap_bhalfduplex select that might result in an infinite loop on
       platforms that do not validate the descriptor. [Roy Fielding]
    *) WIN32: Add "-k shutdown" and "-k restart" options to signal a
       running Apache server [Paul Sutton]
    *) Fix mod_autoindex bug where directories got a size of "0k" instead
       of "-".  [Martin Plechsmid <>, Marc Slemko]
    *) PORT: DRS 6000 machine. [Paul Debleecker <>]
    *) Add the server signature text (from the core ServerSignature directive)
       to the list of envariables available to scripts, SSI, and the like.
       [Ken Coar]
    *) PORT: Fix sys/resource.h handling for SCO 3.x platform.
       [M. Laak <>] PR#3108
    *) Fallback from sysconf-based to plain HZ-based `ticks per second'
       calculation in mod_status for all systems which don't have POSIX
       sysconf() (like UTS 2.1) and not only for the NEXT platform.
       [Dave Dykstra <>] PR#3055
    *) Fix `require ...' directive parsing in mod_auth, mod_auth_dbm and
       mod_auth_db by using ap_getword_white() (which uses ap_isspace()) 
       instead of ap_getword(..., ' ') (which parses only according to spaces 
       but not tabs).  [James Morris <>, 
       Ralf S. Engelschall] PR#3105
    *) Fix the SERVER_NAME variable under sub-request situations (where
       `UseCanonicalName off' is used) like CGI's called from SSI pages or
       RewriteCond variables by adopting r->hostname to sub-requests.
       [James Grinter <>] PR#3111
    *) Fix stderr redirection under syslog-based error logging situation.
       [Youichirou Koga <>] PR#3095
    *) Document `ErrorLog syslog:facility' variant of error logging.
       [Youichirou Koga <>] PR#3096
    *) Fix http://localhost/ hints in top-level INSTALL document.
       [Rob Jenson <>, Ralf S. Engelschall] PR#3088
    *) Quote paths in default configuration files.  [Wilfredo Sanchez]
    *) PORT: Remove extra HAVE_SYS_RESOURCE_H define for RHAPSODY since
       it is now taken care of properly by the header file tests.
       [Wilfredo Sanchez <>]
    *) Fix problem with scripts and filehandle inheritance on Win32.
       [Ken Parzygnat <>]  PR#2884, 2910
    *) Win32 name canonicalisation could end up using the server's
       working directory to fill in some blanks.  [Ken Parzygnat
       <>] PR#3001
    *) Correct invalid assumption by ap_sub_req_lookup_file() that all
       absolute paths begin with "/" -- because they don't on Win32.
       [Ken Parzygnat <>] PR#2976, 3074
    *) Add [REDIRECT_]VARIANTS environment variable to mod_speling
       so that ErrorDocument 300 processors can reformat the list
       if desired.  [Ken Coar] PR#2859
    *) Add +/- incremental prefixes to IndexOptions keywords, and
       enable merging of multiple IndexOptions directives.  [Ken Coar]
    *) PORT: Allow GuessOS to recognize Unixware 7.0.1 [Steve Cameron
    *) Reconstructed the loop through multiple htaccess file names so
       that missing files are not confused with unreadable files.
       [Roy Fielding]
    *) The ap_pfopen and ap_pfdopen routines were failing to protect the
       errno on an error, which leads to one error being mistaken for
       another when reading non-existent .htaccess files.
       [Jim Jagielski]
    *) OS/2: The new header tests get things right, need to update
       ap_config.h.  [Brian Havard]
    *) The Perl %ENV hash will now be setup by default when using the
       mod_include `perl' command [Doug MacEachern]
    *) PORT: Add Pyramid DC/OSx support to configuration mechanism.
       [Earle Ake <>]
    *) PORT: Fix sys/resource.h handling for Amdahl's UTS 2.1
       [Dave Dykstra <>] PR#3054
    *) Correct comment in mod_log_config.c about its internals.
       [Elf Sternberg <>]
    *) Avoid possible line overflow in Configure: Use an awkfile to
       handle the creation of modules.c [Jim Jagielski]
  Changes with Apache 1.3.2
    *) Fix bug in ap_remove_module(), which caused problems for dso's 
       who were the top_module.  [Doug MacEachern]
    *) Add support for Berkeley-DB/2.x (in addition to Berkeley-DB/1.x) to
       mod_auth_db to both be friendly to users who wants to use this version
       and to avoid problems under platforms where only version 2.x is present.
       [Dan Jacobowitz <>, Ralf S. Engelschall]
    *) When using ap_log_rerror(), make the error message available to the
       *ERROR_NOTES envariables by default.  [Ken Coar]
    *) BS2000 platform only: get rid of the nasty BS2000AuthFile.
       You now must define a BS2000Account name for the server User.
       This has fewer security implications than the old approach.
       [Martin Kraemer]
    *) Fix SHARED_CORE feature for HPUX platform: We now use extension `.sl'
       instead of `.so' and `SHLIB_PATH' instead of `LD_LIBRARY_PATH' on this
       platform to make the braindead HPUX linker happy. Notice, for the module
       DSOs we don't have to use this, because these are loaded manually (and
       not via HPUX' dld). [Ralf S. Engelschall] PR#2905, PR#2968
    *) Remove 64 thread limit on Win32.
       [Bill Stoddard <>]
    *) Remove redundant substitutions in top-level Makefile.tmpl.
       [Ralf S. Engelschall]
    *) Fix APACI's `Group' configuration adjustment - especially for Linux
       platforms where `nogroup' exists in /etc/group. [Ralf S. Engelschall]
    *) Make PrintPath work generically instead of having one version
       strictly for OS/2. [Jim Jagielski, Brian Havard]
    *) Fix the recently introduced C header file checking: We now use the C
       pre-processor pass only (and no longer the complete compiler pass) to
       determine whether a C header file exists or not. Because only this way
       we're safe against inter-header dependencies (which caused horrible
       portability problems). The only drawback is that we now have a CPP
       configuration variable which has to be determined first (we do a similar
       approach as GNU Autoconf does here). When all fails the user still has
       the possibility to override it manually via APACI or src/Configuration.
       As a fallback for the header check itself we can directly check the
       existance of the file under /usr/include, too.
       [Ralf S. Engelschall] PR#2777
    *) PORT: Added RHAPSODY (Mac OS X Server) support. MAP_TMPFILE defined
       as an alternate mechanism for mmap'd shared memory for RHAPSODY.
       ap_private_extern defined to hide symbols that conflict with loaded
       dynamic libraries on the NEXT and RHAPSODY platforms.
       [Wilfredo Sanchez <>]
    *) Delete PID file on clean shutdowns.
       [Charles Randall <>] PR#2947
    *) Fix mod_auth_*.html documents: NSCA -> NCSA
       [Youichirou Koga <>] PR#2991
    *) Fix INSTALL document: ->
       [Karl Berry <>] PR#2994
    *) Fix dbmmanage.1 manual page.
       [Youichirou Koga <>] PR#2992
    *) Fix possible buffer overflow situation in suexec.c.
       [Jeff Stewart <>] PR#2790
    *) Add some more LIBS for the SCO5 platform which are needed for the already
       used -lprot. It's actually a bug in SCO5, of course.
       [Ronald Record <>] PR#2533
    *) Fix documentation of ProxyPass/ProxyPassReverse according to the
       trailing slash problem. [Jon Drukman <>] PR#2933
    *) Remove `-msym' option from LDFLAGS_SHLIB for the Digital UNIX (OSF/1)
       platform, because it's only supported under version 4.0 and higher. But
       because our GuessOS is still unaware of Digital UNIX versions and the
       -msym is just to optimize the DSO statup time a little bit it's safe and
       best when we leave it out now.  [Ralf S. Engelschall] PR#2969
    *) Fix the ap_log_error_old(), ap_log_unixerr() and ap_log_printf()
       functions: First all three functions no longer fail on strings containing
       "%" chars and second ap_log_printf() no longer does a double-formatting
       (instead it directly passes through the message to be formatted to the
       real internal formatting function). [Ralf S. Engelschall] PR#2941
    *) Allow "Include" directives anywhere in the server config
       files (but not .htaccess files).  [Ken Coar] PR#2727
    *) The proxy was refusing to serve CONNECT requests except to
       port 443 (https://) and 563 (snews://). The new AllowCONNECT
       directive allows the configuration of the ports to which a
       CONNECT is allowed.  [Sameer Parekh, Martin Kraemer]
    *) mod_expires will now act on content that is not sent from a file
       on disk.  Previously it would never add an Expires: header to
       any response that did not come from a file on disk; the only
       case where it still doesn't (and can't) add one for that type of 
       content is if you are using a modification date based setting.  
       [Marc Slemko, Paul Phillips <>]
    *) Problems encountered during .htaccess parsing or CGI execution
       that lead to a "500 Server Error" condition now provide explanatory
       text (in the *ERROR_NOTES envariable) to ErrorDocument 500 scripts.
       [Ken Coar] PR#1291
    *) Add NameWidth keyword to IndexOptions directive so that the
       width of the filename column is customisable.  [Ken Coar, Dean Gaudet]
       PR#1949, 2324.
    *) Recognize lowercase _and_ uppercase `uname' results under
       SCO OpenServer. [David Coelho <>]
    *) As duplicate "HTTP/1.0 200 OK" lines within the header seem to be
       a common problem of (mis-administrated?) IIS servers, make the apache
       proxy immune to these errors (and ignore the duplicates, but log
       the fact to error_log). [Martin Kraemer], after the proposal in PR#2914 
    *) The <IfModule and <IfDefine block starting directives now only
       allow exactly one argument. Previously, the optional negation
       character '!' could be separated by whitespace without a syntax
       error being reported, albeit defeating the IfModule functionality
       (enclosed directives would ALWAYS be executed). By using the
       stricter syntax, these hard-to-track errors can be avoided.
       [Martin Kraemer]
    *) Simplify handling of IndexOptions in mod_autoindex -- and BTW
       cause the standalone FancyIndexing directive to logically OR
       into any existing IndexOptions settings rather than wiping
       them out.  [Ken Coar]
    *) Changes in ftp proxy: make URL parsing simpler by using the
       parsed_uri stuff.
       + Add display of the "current directory" in cases where it's
       different from the supplied path (e.g., ftp://user@host/ lives
       in /home/user, not in /, therefore clicking on "../" in the
       starting directory might send us to /home/).
       + When ftp login fails, (esp. when a user name was part of the
       URL already), we now return [401 Unauthorized ] to allow the
       browser to pop up an authorization dialog. This makes passwords
       slightly less visible (they don't appear in the regular log files)
       and implements a functionality that other www proxy servers
       already offered.
       [Martin Kraemer]
    *) Triggered by the recent "Via:" header changes, the proxy module would
       dump core for replies with invalid headers (e.g., duplicate
       "HTTP/1.0 200 OK" lines). These errors are now logged and the
       core dump is avoided. Also, broken replies are not cached.
       [Martin Kraemer] PR#2914
    *) new `GprofDir' directive when compiled with -DGPROF, where gprof can
       plop gmon.out profile data for each child [Doug MacEachern]
    *) Use the construct ``"$@"'' instead of ``$*'' in the generated
       config.status script to be immune against arguments with whitespaces.
       [Yves Arrouye <>] PR#2866
    *) Replace the inlined information grabbing stuff for the configuration
       adjustment feature (no --without-confadjust) with calls to a new helper
       script `' which is both more flexible and already proofed to
       be more robust against platform differences. This mainly fixes the
       recently occured ``sed: command garbled: ...'' problems.
       [Ralf S. Engelschall] PR#2776, PR#2848
    *) Make ab.c again pass ``gcc -Wall -Wshadow -Wpointer-arith -Wcast-align
       -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline''
       without complains after we recently added the POST feature.
       [Ralf S. Engelschall]
    *) Renamed is_HTTP_xxx() macros to ap_is_HTTP_xxx() name. They are used inside
       modules as API functions and we forgot them at the big symbol renaming.
       [Ralf S. Engelschall]
    *) Remove bad reference to non-existing SERVER_VERSION in mod_rewrite.html
       [Youichirou Koga <y-koga@jp.FreeBSD.ORG>] PR#2895
    *) Dynamically size the filename column of mod_autoindex output.
       [Dean Gaudet]
    *) Add the ability to do POST requests to the ab benchmarking tool.
       [Kurt Sussman <>] PR#2871
    *) Bump up MAX_ENV_FLAGS in mod_rewrite.h from the too conservatice limit of
       5 to 10 because there are some users out there who always have 5 to 8
       variables in one RewriteRule and had to patch mod_rewrite.h for every
       release. So 15 should be now more than enough, even for them. (I never
       needed more than 4 in my RewriteRules ;-)
       [Ralf S. Engelschall]
    *) Make the proxy generate and understand Via: headers
       [Martin Kraemer]
    *) Change the proxy to use tables instead of array_headers for
       the header lines. [Martin Kraemer]
    *) Make sure the config.status file is not overridden when just
       ``configure --help'' is used. [Ralf S. Engelschall] PR#2844
    *) Split MODULE_MAGIC_NUMBER into _MAJOR/_MINOR numbers. This should
       provide a way to trace API changes that add functionality but do
       not create a compatibility issue for precompiled modules, etc.
       See include/ap_mmn.h for more details.  [Randy Terbush]
    *) Fix suexec installation under `make install root=xxx' situation.
       [Ralf S. Engelschall]
    *) Extend the output of the -V switch to include the paths of all
       compiled-in configuration files, if they were overridden at
       compile time, for least astonishment of the user.
       [Martin Kraemer]
    *) When READing a request in ExtendedStatus mode, the "old"
       vhost, request and client information is not displayed.
       [Jim Jagielski]
    *) STATUS is no longer available. Full status information now
       run-time configurable using the ExtendedStatus directive.
       [Jim Jagielski]
    *) SECURITY: Eliminate O(n^2) space DoS attacks (and other O(n^2)
       cpu time attacks) in header parsing.  Add ap_overlap_tables(),
       a function which can be used to perform bulk update operations
       on tables in a more efficient manner.  [Dean Gaudet]
    *) SECURITY: Added compile-time and configurable limits for
       various aspects of reading a client request to avoid some simple
       denial of service attacks, including limits on maximum request-line
       size (LimitRequestLine), number of header fields (LimitRequestFields),
       and size of any one header field (LimitRequestFieldsize).  Also added
       a configurable directive LimitRequestBody for limiting the size of the
       request message body.  [Roy Fielding]
    *) Make status module aware of DNS and logging states, even if
       STATUS not defined.  [Jim Jagielski]
    *) Fix a problem with the new OS/2 mutexes.  [Brian Havard]
    *) Enhance mod_speling so that CheckSpelling can be used in
       <Directory> containers and .htaccess files.  [Ken Coar]
    *) API: new ap_custom_response() function for hooking into the
       ErrorDocument mechanism at runtime [Doug MacEachern]
    *) API: new ap_uuencode() function [Doug MacEachern]
    *) API: scan_script_header_err_core() now "public" and renamed
       ap_scan_script_header_err_core() [Doug MacEachern]
    *) The 'status' module will now show the process pid's and their
       state even without full STATUS accounting. [Jim Jagielski]
    *) Restore the client IP address to the error log messages, this
       was lost during the transition from 1.2 to 1.3.  Add a new
       function ap_log_rerror() which takes a request_rec * and
       formats it appropriately.  [Dean Gaudet] PR#2661
    *) Cure ap_cfg_getline() of its nasty habit of compressing internal
       whitespace in input lines -- including within quoted strings.
       [Ken Coar]
       but leading and trailing whitespace should continue to be
       stripped [Martin Kraemer]
    *) Cleanup of the PrintPath/PrintPathOS2 helper functions. Avoid
       the ugly use of an env. variable and use command-line args for
       alternate $PATH. Make more like advanced 'type's as well.
       [Jim Jagielski]
    *) The IRIXN32 Rule was being ignored. Configure now correctly adds
       -n32 only if IRIXN32 says to. [Jim Jagielski, Alain St-Denis
       <>] PR#2736
    *) Clean up a warning in mod_proxy. [Ralf S. Engelschall]
    *) Renamed __EMX__ (internal define of the gcc port under OS/2) to OS2
       following the same idea as "MSVC vs WIN32". Additionally the src/os/emx/
       directory was renamed to src/os/os2/ for consistency.
       [Brian Havard, Ralf S. Engelschall]
    *) Add new Rule SHARED_CHAIN which can be used to enable linking of DSO
       files (here modules) against other DSO files (here shared libraries).
       This is done by determining a subset of LIBS which can be safely used for
       linking the DSOs, i.e. PIC libs and shared libs.  Currently the rule is
       disabled for all platforms to avoid problems with this (experimental)
       rule. But we provide it now for those people how ran into problems and
       want to came out by forcing linking against DSOs.
       [Ralf S. Engelschall] PR#2587
    *) Fix suEXEC start message: Has to be of `notice' level to really get
       printed together with the standard startup message because the `notice'
       level is handled special inside ap_log_error() for startup messages.
       [Ralf S. Engelschall] PR#2761 PR#2761 PR#2765
    *) Add correct `model' MIME types from RFC2077 to mime.types file.
       [Ralf S. Engelschall] PR#2732
    *) Fixed examples in mod_rewrite.html document. 
       [Youichirou Koga <>, Ralf S. Engelschall] PR#2756
    *) Allow ap_read_request errors to propagate through the normal request
       handling loop so that the connection can be properly closed with
       lingering_close, thus avoiding a potential TCP reset that would
       cause the client to miss the HTTP error response.  [Roy Fielding]
    *) One more portability fix for APACI shadow tree support: Swap order of awk
       and sed in top-level configure script to avoid sed fails on some
       platforms (for instance SunOS 4.1.3 and NCR SysV) because of the
       non-newline-termined output of Awk. [Ralf S. Engelschall] PR#2729
    *) PORT: NEC EWS4800 support.
       [MATSUURA Takanori <>]
    *) Fix a segfault in the proxy on OS/2.  [Brian Havard]
    *) Fix Win32 part of ap_spawn_child() by providing a reasonable child_info
       structure instead of just NULL. This fixes at least the RewriteMap
       programs under Win32. [Marco De Michele <>] PR#2483
    *) Add workaround to top-level `configure' script for brain dead 
       `echo' commands which interpet escape sequences per default.
       [Ralf S. Engelschall] PR#2654
    *) Make sure that the path to the Perl interpreter is correctly
       adjusted under `make install' also for the printenv CGI script.
       [Ralf S. Engelschall] PR#2595
    *) Update the mod_rewrite.html document to correctly reflect the situation
       of the `proxy' (`[P]') feature. [Ralf S. Engelschall] PR#2679
    *) Fix `install-includes' sub-target of `install' target in top-level
       Makefile.tmpl: The umask+cp approach didn't work as expected (especially
       for users which extracted the distribution under 'umask 077'), so replace
       it by an explicit cp+chmod approach.
       [Richard Lloyd, Curt Sampson, Ralf S. Engelschall] PR#2656 PR#2626
    *) Fix `distclean' and `clean' targets in src/Makefile.tmpl to have same
       behavior and to cleanup correctly even under enabled SHARED_CORE rule.
       [Ralf S. Engelschall]
    *) Use a more straight forward and thus less problematic Sed command in
       src/helper/ script.  [Ralf S. Engelschall]
    *) Make sure the `configure' scripts doesn't fail when trying to guess the
       domainname of the machine and there are multiple `domainname' and
       `search' entries in /etc/resolv.conf.
       [Ralf S. Engelschall] PR#2710
    *) Add note about the SHARED_CORE requirement on some platforms also to the
       INSTALL file because a lot of users don't read htdocs/manual/dso.html
       first. [Ralf S. Engelschall] PR#2701
    *) Fix document "hyperlink" for dso.html in src/Configuration.tmpl
       [Knut A.Syed <>] PR#2674
    *) Modify mod_rewrite to update the Vary response field if the URL rewriting
       engine does any manipulations or decisions based upon request fields. 
       [Ken Coar] PR#1644
    *) Document the special APACI behavior for installation paths where
       ``/apache'' is appended to paths under some (well defined, of course)
       situations to prevent pollution of system locations with Apache files.
       [Ralf S. Engelschall] PR#2660
    *) Fixed problem with buffered response message not being sent for
       the read_request error conditions of URI-too-long (414) and
       malformed header fields (400).  [Roy Fielding] PR#2646
    *) Add support for the Max-Forwards: header line required by RFC2068 for
       the TRACE method. This allows apache to TRACE along a chain of proxies
       up to a predetermined depth. [Martin Kraemer]
    *) Fix SHARED_CORE rule: The CFLAGS_SHLIB variable is no longer doubled
       (compilers complained) and the .so.V.R.P filename extension was adjusted
       to correctly reflect the 1.3.2 version.
       [Ralf S. Engelschall] PR#2644
    *) SECURITY: Plug "..." and other canonicalization holes under OS/2.
       [Brian Havard]
    *) PORT: implement serialized accepts for OS/2.  [Brian Havard]
    *) mod_include had problems with the fsize and flastmod directives
       under WIN32.  Fix also avoids the minor security hole of using
       ".." paths for fsize and flastmod.
       [Manoj Kasichainula <>] PR#2355
    *) Fixed some Makefile dependency problems.  [Dean Gaudet]
  Changes with Apache 1.3.1
    *) Disable the incorrect entry for application/msword in the 
       mod_mime_magic "magic" file because it also matches other Office
       documents.  [Ralf S. Engelschall] PR#2608
    *) Fix broken RANLIB handling in src/Configure (the entry from
       src/Configuration.tmpl was ignored) and additionally force RANLIB to
       /bin/true under HP/UX where ranlib exists but is deprecated.
       [Ralf S. Engelschall] PR#2627
    *) 'apachectl status' failed on some systems.
       [Steve VanDevender <>, Lars Eilebrecht] PR#2613
    *) Add new flags for ap_unparse_uri_components() to make it generate
       the scheme://sitepart string only, or to omit the query string.
       [Martin Kraemer]
    *) WIN32: Canonicalize ServerRoot before checking to see if it
       is a valid directory.  The failure to do this caused certain
       ServerRoot settings (eg. "ServerRoot /apache") to be improperly
       rejected.  [Marc Slemko]
    *) Global renaming of C header files to both get rid of conflicts with third
       party packages and to again reach consistency:
         1. conf.h      -> ap_config.h
         2. conf_auto.h -> ap_config_auto.h \ these are now merged
         3. ap_config.h -> ap_config_auto.h / in the config process
         4. compat.h    -> ap_compat.h
         5. apctype.h   -> ap_ctype.h
       Backward compatibility files for conf.h and compat.h were created.
    *) mod_mmap_static will no longer take action on requests unless at 
       least one "mmapfile" directive is present in the configuration. 
       This experimental module has to do some black magic to operate 
       inside the current API and thus creates side-effects for other 
       modules under some circumstances.
       [Ralf S. Engelschall]
    *) Add conservative ticks around more egrep arguments in top-level configure
       to avoid problems under brain-dead platforms like Digital UNIX (OSF1).
       [Ralf S. Engelschall] PR#2596
    *) mod_rewrite created RewriteLock files under the UID of the parent
       process, thus the child processes had no write access to the files.
       Now a chown() is done on the file to the uid of the children,
       if applicable.  [Lars Eilebrecht, Ralf S. Engelschall] PR#2341
    *) Autogenerate some HAVE_XXXXX_H defines in conf_auto.h (determined via
       TestCompile) instead of defining them manually in conf.h based on less
       accurate platform definitions.  This way we no longer have to fiddle with
       OS-type and/or OS-version identifiers to discover whether a system header
       file exists or not.  Instead we now directly check for the existence of
       those esoteric ones. 
       [Ralf S. Engelschall] PR#2093, PR#2361, PR#2377, PR#2434,
                             PR#2524, PR#2525, PR#2533, PR#2569
    *) mod_setenvif (BrowserMatch* and friends) will now match a missing
       field with "^$".  [Ken Coar]
    *) Set the RTLD_GLOBAL dlopen mode parameter to allow dynamically loaded
       modules to load their own modules dynamically.  This improves mod_perl
       and mod_php3 when these modules are loaded dynamically into Apache.
       [Rasmus Lerdorf]
    *) Cache a proxied request in the event that the client cancels the
       transfer, provided that the configured percentage of the file has
       already been transferred. It works for HTTP transfers only.  The 
       new configuration directive is called CacheForceCompletion. 
       [Glen Parker <>] PR#2277
    *) Add the "<!DOCTYPE HTML" magic cookie used by modern documents (and
       required by HTML 3.2 and later) to mod_mime_magic's conf/magic.
       [Anna Shergold <>]
    *) Fix yet another signal-based race condition involving nested timers.
       Signals suck.  [Dean Gaudet]
    *) suexec's error messages have been clarified a little bit.  [Ken Coar]
    *) Clean up some, but perhaps not all, 8-bit character set problems
       with config file parsing, and URL parsing.  We now define
       ap_isdigit(), ap_isupper(), ... which cast to an (unsigned char).
       This should work on most modern unixes.
       [Dean Gaudet] PR#800, 2282, 2553  (and others)
    *) The "handler not found" error was issued in cases where the handler
       really did exist, but was just declining to serve the request.
       [John Van Essen <>] PR#2529
    *) Add Dynamic Shared Object (DSO) support for SCO5 (OpenServer 5.0.x).
       [Ronald Record <>] PR#2533
    *) The APACI libexecdir was not extended with an "apache/" subdir
       if the installation prefix didn't already contain "apache", but
       it should be because the DSO files are Apache-specific.  Now
       libexecdir is treated the same way sysconfdir, datadir, localstatedir
       and includedir are already treated.
       [Charles Levert <>] PR#2551
    *) The <Limit> parsing routine was incorrectly treating methods as
       case-insensitive.  [Ken Coar]
    *) The ap_bprintf() code neglected to test if there was an error on
       the connection.  ap_bflush() misdiagnosed a failure as a success.
       [Dean Gaudet]
    *) add support for #perl arg interpolation in mod_include
       [Doug MacEachern]
    *) API: Name changes of table_elts to ap_table_elts, is_table_empty
       to ap_is_table_empty and bgetflag to ap_bgetflag. [Ben Laurie]
    *) PORT: Add UnixWare 7 support
       [Vadim Kostoglodoff <>] PR#2463
    *) Fix the Guess-DSO-flags-from-Perl stuff in src/Configure: "perl" was
       used instead of "$PERL" which contains the correctly determined Perl
       interpreter (important for instance on systems where "perl" and "perl5"
       exists, like BSDI or FreeBSD, etc).
       [Ralf S. Engelschall] PR#2505
    *) Move the initial suEXEC-related startup message from plain
       fprintf()/stderr to a delayed ap_log_error()-based one to avoid problems
       when Apache is started from inetd (instead of standalone). Under this
       situation startup messages on stderr lead to problems (the line is sent
       to the client in front of the requested document).
       [Ralf S. Engelschall] PR#871, PR#1318
    *) Add a flag so ap_fnmatch() can be used for case-blind pattern matching.
       [Ken Coar, Dean Gaudet]
    *) WIN32: Don't collapse multiple slashes in PATH_INFO.
       [Ben Laurie, Bill Stoddard <>] PR#2274
    *) WIN32 SECURITY: Eliminate trailing "."s in path components. These are
       ignored by the Windows filesystem, and so can be used to bypass security.
       [Ben Laurie, Alexei Kosut].
    *) We now attempt to dump core when we get SIGILL. [Jim Jagielski]
    *) PORT: remove broken test for MAP_FILE in http_main.c.
       [Wilfredo Sanchez <>]
    *) PORT: Change support/apachectl to use "kill -0 $pid" to test if the
       httpd is running.  This should be more portable than figuring out
       which of three dozen different versions of "ps" are installed.
       [a cast of dozens]
    *) WIN32: If we can't figure out how to execute a file in a script
       directory, bail out of the request with an error message.  [W G Stoddard]
    *) WIN32 SECURITY: Eliminate directories consisting of three or more dots;
       these are treated by Win32 as if they are ".." but are not detected by
       other machinery within Apache. This is something of a kludge but
       eliminates a security hole. [Manoj Kasichainula, Ben Laurie]
    *) Move ap_escape_quotes() from src/ap to src/main/util.c; it uses
       pools and thus pollutes libap (until the pool stuff is moved there).
       [Ken Coar]
    *) IndexIgnore should be case-blind on Win32 (and any other case-aware
       but case-insensitive platforms).  New #define for this added to conf.h
       (CASE_BLIND_FILESYSTEM).  [Ken Coar] PR#2455
    *) Enable DSO support for OpenBSD in general, not only for 2.x, because it
       also works for OpenBSD 1.x. [Ralf S. Engelschall]
    *) PORT: Fix compilation problem on ARM Linux.
       [Sam Kington <>] PR#2443
    *) Let APACI's configure script determine some configuration parameters
       (Group, Port, ServerAdmin, ServerName) via some intelligent tests to
       remove some of the classical hurdles for new users when setting up
       Apache. This is done per default because it is useful for the average
       user. Package authors can use the --without-confadjust option to disable
       these configuration adjustments.
       [Ralf S. Engelschall]
    *) Added an EXTRA_DEPS configuration parameter which can be used
       to add an extra Makefile dependency for the httpd target, for instance
       to external third-party libraries, etc.
       [Ralf S. Engelschall]
    *) Add <IfDefine>..</IfDefine> sections to the core module (with same spirit
       as <IfModule>..</IfModule> sections) which can be used to skip or process
       contained commands dependend of ``-D PARAMETER'' options on the command
       line. This can be used to achieve logical conditions like <IfDefine
       ReverseProxy> instead of physically ones (e.g. <IfModule mod_proxy.c>)
       and thus especially can be used for conditionally loading DSO-based
       modules via LoadModule, etc. [Ralf S. Engelschall]
    *) PORT: clean up a warning in mod_status for OS/2.  [Brian Havard]
    *) Make table elements const. This may prevent obscure errors. [Ben Laurie]
    *) Fix parsing of FTP `SIZE' responses in proxy module: The newline was not
       truncated which forced following HTTP headers to be data in the HTTP
       reponse. [Ralf S. Engelschall, Charles Fu <>] 
       PR#2412, 2367
    *) Portability fix for APACI shadow tree support: Swap order of awk and sed
       in top-level configure script to avoid sed fails on some platforms (for
       instance SunOS 4.1.3 and NCR SysV) because of the non-newline-termined
       output of Awk. [Bill Houle <>] PR#2435
    *) Improve performance of directory listings (mod_autoindex) by comparing
       integer keys (last-modified and size) as integers rather than converting
       them to strings first.  Also use a set of explicit byte tests rather
       than strcmp() to check for parent directory-ness of an entry.  Oh, and
       make sure the parent directory (if displayed) is *always* listed first
       regardless of the sort key.  Overall performance winnage should be good
       in CPU time, instruction cache, and memory usage, particularly for large
       directories.  [Ken Coar]
    *) Add a tiny but useful goody to APACI's configure script: The generation
       of a config.status script (as GNU Autoconf does) which remembers the used
       configure command and hence can be used to restore the configuration by
       just re-running this script or for remembering the configuration between
       [Ralf S. Engelschall]
    *) Add httpd -t (test) option for running configuration syntax tests only.
       If something is broken it complains and exits with a return code
       non-equal to 0. This can be used manually by the user to check the Apache
       configuration after editing and is also automatically used by apachectl
       on (graceful) restart command to make sure Apache doesn't die on restarts
       because of a configuration which is now broken since the last (re)start.
       This way `apachectl restart' can be used inside cronjobs without having
       to expect Apache to be falling down. Additionally the httpd -t can be run
       via `apachectl configtest'.
       [Ralf S. Engelschall] PR#2393
    *) Minor display fix for "install" target of top-level Makefile:
       the displayed installation command was incorrect although the
       executed command was correct. Now they are in sync.
       [Ralf S. Engelschall] PR#2402
    *) Correct initialization of variable `allowed_globals' in http_main.c
       [Justin Bradford <>] PR#2400
    *) Apache would incorrectly downcase the entire Content-Type passed from
       CGIs.  This affected server-push scripts and such which use
       [Dean Gaudet] PR#2394
    *) PORT: QNX update to properly guess 32-bit systems.
       [Sean Boudreau <>] PR#2390
    *) Make sure the DSO emulation code for HPUX finds the proprietary shl_xxx()
       functions which are in libdld under HPUX 9/10.
       [Ralf S. Engelschall] PR#2378
    *) Make sure the "install" target of the top-level Makefile doesn't break
       because of a return code of 1 from an "if" (for instance under braindead
       Ultrix the result code of an "if" construct is 1 if the "then" clause
       didn't match). [Ralf S. Engelschall]
    *) Add an additional "dummy" target to the "$(LIB)" target in generated
       modules/xxx/Makefile's to avoid problems with SVR4 Make under "full-DSO"
       situation (no libxxx.a built, only's) where LIB and OBJS are
       empty. [Ralf S. Engelschall, Dean Gaudet, Martin Kraemer]
    *) Replace two bad sprintf() calls with ap_snprintf() variants in
       mod_rewrite. [Ralf S. Engelschall]
    *) Fix missing usage description for MetaFiles directive.
       [David MacKenzie <>] PR#2384
    *) mod_log_config wouldn't let vhosts use log formats defined in the
       main server.  [Christof Damian <>] PR#2090
    *) mod_usertrack was corrupting the client hostname.  As part of the
       fix, the cookie values were slightly extended to include the
       fully qualified hostname of the client.
       [Dean Gaudet] PR#2190, 2229, 2366
    *) Fix a typo in pool debugging code.  [Alvaro Martinez Echevarria]
    *) mod_unique_id did not work on alpha linux (in general on any
       architecture that has 64-bit time_t).
       [Alvaro Martinez Echevarria]
    *) PORT: Make SCO 5 (and probably 3) compile again. [Ben Laurie]
    *) PORT: NCR MPRAS systems have the same bug with SIGHUP restart that
       Solaris systems experience.  So define WORKAROUND_SOLARIS_BUG.
       [Klaus Weber <>] PR#1973
    *) Change "Options None" to "Options FollowSymLinks" in the 
       <Directory /> section of the default access.conf-dist
       (and -win even though it doesn't matter there).  This has better
       performance, and more intuitive semantics.  [Dean Gaudet]
    *) PORT: Updated support for UTS 2.1.2.
       [Dave Dykstra <>] PR#2320
    *) Fix symbol export list (src/support/httpd.exp) after recent
       API changes in the child spawning area.
       [Jens-Uwe Mager <>]
    *) Workaround for configure script and old `test' commands which do not
       support the -x flag (for instance under platforms like Ultrix). This is
       solved by another helper script which searches for Perl and
       Awk like PrintPath but _via different names_.
       [Ralf S. Engelschall]
    *) Remove the system() call from htpasswd.c, which eliminates a system
       dependancy.  ["M.D.Parker" <>] PR#2332
    *) PORT: Fix compilation failures on NEXTSTEP.
       [Rex Dieter <>] PR#2293, 2316
    *) PORT: F_NDELAY is a typo, should have been FNDELAY.  There's also
       O_NDELAY on various systems.  [Dave Dykstra <>] PR#2313
    *) PORT: helpers/GuessOS updates for various versions for NCR SVR4.
       [juerg schreiner <>,
       Bill Houle <Bill.Houle@SanDiegoCA.NCR.COM>] PR#2310
    *) Fix recently introduced Win32 child spawning code in mod_rewrite.c which
       was broken because of invalid ap_pstrcat() -> strcat() transformation.
       [Ralf S. Engelschall]
    *) Proxy Cache Fixes: account for directory sizes, fork off garbage collection
       to continue in background, use predefined types (off_t, size_t, time_t),
       log the current cache usage percentage at LogLevel debug
       [Martin Kraemer, based on discussion between Dean Gaudet & Dirk vanGulik]
  Changes with Apache 1.3.0
    *) Using a type map file as a custom error document was not possible.
       [Lars Eilebrecht] PR#1031
    *) Avoid problems with braindead Awks by additionally searching for gawk 
       and nawk in APACI's configure script.
       [Dave Dykstra <>, Ralf S. Engelschall] PR#2319
    *) Rename md5.h to ap_md5.h to avoid conflicts with native MD5 on
       some systems. [Randy Terbush]
    *) Change usage of perror()+fprintf(stderr,...) in mod_rewrite to
       more proper ap_log_error() variants.
       [Ralf S. Engelschall]
    *) Make sure the argument for the --add-module option to APACI's configure
       script is of type [path/to/]mod_xxx.c because all calculations inside
       configure and src/Configure depend on this.
       [Ralf S. Engelschall] PR#2307
    *) Changes usage of perror/fprintf to stderr to more proper ap_log_error
       in mod_mime, mod_log_referer, mod_log_agent, and mod_log_config.
       [Brian Behlendorf]
    *) Various OS/2 cleanups ["Brian Havard" <>]
    *) PORT: QNX needed a #include <sys/mman.h>; and now it uses flock
       serialized accept to handle multiple sockets.
       [Rob Saccoccio <>] PR#2295, 2296
    *) Have NT properly set the directory for CGI scripts 
       (& other spawned children)
       [W G Stoddard <>]
    *) Propagate environment to CGI scripts correctly in Win32.
       [W G Stoddard <>] PR#2294
    *) Some symbol renaming:
       ap_spawn_child_err became ap_spawn_child
       ap_spawn_child_err_buff became ap_bspawn_child
       spawn_child was obsoleted and moved to compat.h
       [Brian Behlendorf]
    *) Upgrade the child spawning code in mod_rewrite for the RewriteMap
       programs: ap_spawn_child_err() is used and the Win32 case now uses
       CreateProcess() instead of a low-level execl() (which caused problems in
       the past under Win32).
       [Ralf S. Engelschall]
    *) A few cosmetics and trivial enhancements to APXS to make the
       generated Makefile more user friendly. [Ralf S. Engelschall]
    *) Proxy Fix: The proxy special failure routine ap_proxyerror()
       was updated to use the normal apache error processing, thereby allowing
       proxy errors to be treated by ErrorDocument's as well. For this
       purpose, a new module-to-core communication variable "error-notes"
       was introduced; the proxy (and possibly other modules) communicates
       its error text using this variable. Its content is copied to a new
       cgi-env-var REDIRECT_ERROR_NOTES for use by ErrorDocuments.
       The old proxy special error routine ap_proxy_log_uerror()
       was replaced by regular ap_log_error() calls, many messages were made
       more informative. 
       [Martin Kraemer] PR#494, 1259
    *) SECURITY: A possible buffer overflow in the ftp proxy was fixed.
       [Martin Kraemer]
    *) Transform the configure message "You need root privileges for suEXEC"
       from a fatal error into a (more friendly) warning because the building
       ("make") of Apache we can allow, of course. Root privileges are needed
       only for the installation step ("make install"). So make sure the
       user is aware of this fact but let him proceed as long as he can.
       [Ralf S. Engelschall] PR#2288
    *) Renamed three more functions to common ap_ prefix which we missed at the
       Big Symbol Renaming because they're #defines and not real C functions:
       is_default_port(), default_port(), http_method().
       [Ralf S. Engelschall]
    *) A zero-length name after a $ in an SSI document should cause
       just the $ to be in the expansion.  This was broken during the
       security fixes in 1.2.5.  [Dean Gaudet] PR#1921, 2249
    *) Call ap_destroy_sub_req() in ap_add_cgi_vars() to reclaim some
       memory.  [Rob Saccoccio <>] PR#2252
    *) Fix src/support/httpd.exp (DSO export file which is currently only
       used under AIX) because of recent changes to function names.
       [Ralf S. Engelschall]
  Changes with Apache 1.3b7
    *) Make sure a MIME-type can be forced via a RewriteRule even when no
       substitution takes place, for instance via the following rule:
       ``RewriteRule ^myscript$ - [T=application/x-httpd-cgi]'' This was often
       requested by users in the past to force a single script without a .cgi
       extension and outside any cgi-bin dirs to be executed as a CGI program.
       [Ralf S. Engelschall] PR#2254
    *) A fix for protocol issues surrounding 400, 408, and
       414 responses. [Ed Korthof]
    *) Ignore MaxRequestsPerChild on WIN32. [Brian Behlendorf]
    *) Fix discrepancy in proxy_ftp.c which was causing failures when 
       trying to connect to certain ftpd's, such as anonftpd.  
       [Rick Ohnemus <>]
    *) Make mod_rewrite use ap_open_piped_log() for RewriteLog directive's
       logfile instead of fiddling around itself with child spawning stuff.
       [Ralf S. Engelschall]
    *) Made RefererIgnore case-insensitive.
    *) Mod_log_agent, mod_log_referer now use ap_open_piped_log for piped logs.
       [Brian Behlendorf]
    *) Replace use of spawn_child with ap_spawn_child_err_buff, to make everything
       "safe" under Win32.  In: mod_include.c, mod_mime_magic.c
       [Brian Behlendorf]
    *) Improve RFC1413 support. [Bob Beck <>]
    *) Fix support script `dbmmanage': It was unable to handle some sort
       of passwords, especially passwords with "0" chars.
       [Ralf S. Engelschall] PR#2242
    *) WIN32: Clicking on "Last Modified" in a fancy index caused a crash. Fixed.
       [Ben Laurie] PR#2238
    *) WIN32: CGIs could cause a hang (because of a deadlock in the standard C
       library), so CGI handling has been changed to use Win32 native handles
       instead of C file descriptors.
       [Ben Laurie and Bill Stoddard <>] PR#1129, 1607
    *) The proxy cache would store an incorrect content-length in the cached
       file copy after a cache update. That resulted in repeated fetching
       of the original copy instead of using the cached copy.
       [Ernst Kloppenburg <>] PR#2094
    *) The Makefiles assumed that DSO files are build via $(LD). This
       is broken for two reasons: First we never defined at least LD=ld
       somewhere to make sure this works (it was silently assumed that most Make
       provide a built-in LD definition - ARGL!) and second using the generic LD
       variable is not the truth. Instead a special variable named LD_SHLIB is
       reasonable because although "ld" is usually the default, the command for
       building DSO files can be "libtool" or even "cc" on some systems.
       [Ralf S. Engelschall]
    *) Replace the AddVersionPlatform directive with ServerTokens which
       provides for more control over the format of the Server:
       header line. SERVER_SUBVERSION is no longer supported;
       all module should use the ap_add_version_component()
       API function instead. [Jim Jagielski]
    *) Support for the NCR MP/RAS 3.0
       [John Withers <>]
    *) The LDFLAGS_SHLIB_EXPORT variable of src/Configuration[.tmpl] was
       not retrieved in src/Configure and thus was not useable.
       [Ralf S. Engelschall]
    *) Various Makefile consistency cleanups:
       - make OSDIR also automatically be relative to src/ like INCDIR
       - SUBDIRS is now generated in src/Makefile only and not in
         Makefile.config because it is a local define for this location.
       - remove BROKEN_BPRINTF_FLAGS because is it no longer used inside
         any Makefile but make sure that at least the "-K inline" is kept in
         CFLAGS for SCO 5.
       - update the "depend" targets in Makefile.tmpl files to use $(OSDIR), too.
       - updated the dependencies theirself
       - removed not existing SHLIB variable from "clean" targets
       - replaced SHLIB_OBJS/SHLIBS_OBJ consistently with OBJS_PIC because OBJS
         already exists and OBJS_PIC are also just plain objects and have not
         directly to do with "shared" things. The only difference is that they
         contain PIC. So OBJS_PIC is the more canonical name.
       - Updated the Makefile-dependency lines for OBJS_PIC
       - Removed the Makefile-dependency line in Configure to avoid double
       - replaced ugly xx-so.o/ hack with a clean and consistent usage
         of xxx.lo as GNU libtool does with its PIC objects
       - reduce local complexity in modules Makefile.tmpl by moving the last
         existing target "depend" to the generation section in Configure, too.
       - removed the historical $(SPACER) which was used in the past together
         with BROKEN_BPRINTF_FLAGS to avoid zig-zags in the build process. This
         is no longer needed.
       - force the build and run of the gen_xxx programs under main/ as the
         first step before building the objects because it looks cleaner
       [Ralf S. Engelschall]
    *) WIN32: Make Win32 work again after the /dev/null DoS fix.
       [Ben Laurie]
    *) WIN32: Check for buffer overflows in ap_os_canonical_filename.
       [Ben Laurie]
    *) WIN32: Don't force ISAPI headers to finish with \n.
       [Jim Patterson <Jim.Patterson@Cognos.COM>, Ben Laurie] PR#2060
    *) When opening "configuration" files (like httpd.conf, htaccess
       and htpasswd), Apache will not allow them to be non-/dev/null
       device files. This closes a DoS hole. At the same time,
       we use ap_pfopen to open these files to handle timeouts.
       [Jim Jagielski, Martin Kraemer]
    *) Apache will now log the reason its httpd children exit if they exit
       due to an unexpected signal.  (It requires a new porting define,
       SYS_SIGLIST, which if defined should point to a list of text
       descriptions of the signals available.  See PORTING.)  [Dean Gaudet]
    *) WIN32: chdir() doesn't make sense in a multithreaded environment 
       like WIN32.  Before, Win32 CGI's could have had sporadic failures 
       if a chdir call from one thread was made between another chdir call 
       and a spawn in another thread.  So, for now don't chdir for CGI scripts 
       in WIN32.  The current CGI "spec" is unclear as to whether it's 
       necessary.  Long-term fix is to either serialize the chdir/spawn combo 
       or use WIN32 native calls to spawn a process.  This temp fix was 
       necessary to remove this as a showstopper for 1.3's release. 
       [Brian Behlendorf]
    *) Cleanup the suEXEC support in APACI and make it more safe:
       1. Add big fat hint in INSTALL about risks and to read the
          htdocs/manual/suexec.html document before using the suexec-related
          configure options.
       2. Make sure the user has at least provided one --suexec-xxxx option
          (specifies suEXEC parameters) in addition to --enable-suexec option.
          If only --enable-suexec is given APACI stops with a hint to INSTALL
          and htdocs/manual/suexec.html documents.
       3. Provide two additional --suexec-xxxx options to make the suEXEC
          configuration complete (especially for package maintainers who else
          had to patch the source tree) by providing ways to configure minimal
          UID/GID and safe PATH, too.
       [Ralf S. Engelschall]
    *) Cleanup of the `configure --shadow' process:
       - make sure the configure script creates its temporary files in the
         shadow tree to avoid conflicts with parallel configure runs
       - removed unnecessary option "-r" from "rm" call for Makefiles
       - make sure the configure scripts creates the shadow-wrapper Makefile
         only when no shadow trees already exists
       - make sure "make distclean" removes the shadow-wrapper Makefile but only
         when no more shadow trees exists
       - overhauled script: now its more IFS-safe and approx. twice
         as fast (in the past it needed 70sec, now it runs just 38sec)
       - make sure CVS does not complain about the created files
         Makefille.<gnutriple> and directories src.<gnutriple>
       [Ralf S. Engelschall]
    *) Added the ap_add_version_component() API routine and the
       AddVersionPlatform core directive.  The first allows modules to
       declare themselves in the Server response header field value,
       augmenting the SERVER_SUBVERSION define in the Configuration file
       with run-time settings (more useful in a loadable-module environment).
       AddVersionPlatform inserts a comment such as "(UNIX)" or "(Win32)"
       into the server version string.  [Ken Coar] PR#2056
    *) Minor stability tweaks to avoid core dumps in ap_snprintf.
       [Martin Kraemer]
    *) Emit the "Accept-Range" header for the default handler.
       [Brian Behlendorf] PR#1464
    *) Add a note to httpd.conf-dist that apache will on some systems fail
       to start when the Group # is set to a negative or large positive value.
       [Martin Kraemer]
    *) Make sure the module execution order is correct even when some modules
       are loaded under runtime (`LoadModule') via the DSO mechanism:
       1. The list of loaded modules is now a dynamically allocated one
          and not the original statically list from modules.c
       2. The loaded modules are now correctly setup by LoadModule for
          later use by the AddModule command.
       3. When the DSO mechanism for modules is used APACI's `install'
          target now enables all created `LoadModule' lines per default because
          this is both already expected by the user _and_ needed to avoid
          confusion with the next point and reduces the Makefile.tmpl complexity
       4. When the DSO mechanism for modules is used, APACI's `install'
          target now additionally makes sure the module list is reconstructed
          via a complete `ClearModuleList+AddModule...' entry.
       5. The support tool `apxs' now also makes sure an AddModule command
          is added in addition to the LoadModule command.
       6. The modules.c generation was extended to now contain two
          comments to make sure no one is confused by the confusing terminology
          of loading/linking (we use load=link+load & link=activate instead of
          the obvious load=activate & link=link :-( )
       This way now there is no longer a difference under execution time between
       statically and dynamically linked modules.
       [Ralf S. Engelschall]
    *) Fix the generated mod_xxx.c from "apxs -g -f xxx" after the
       Big Symbol Renaming. [Ralf S. Engelschall]
    *) Add a comment to mod_example.c showing the format of a FLAG command
       handler.  [Ken Coar]
    *) Standardized the time format in mod_status to match that of other 
       places in the code (e.g. DATE_GMT).  PR#1551
    *) Fix handling of %Z in timefmt strings for those platforms with no time
       zone information in their tm struct. [Paul Eggert <>]
    *) Makes mod_rewrite, mod_log_config, mod_status and the ServerSignature 
       feature compatible with 'UseCanonicalName off' by changing  
       r->server->server_hostname to ap_get_server_name().  And I changed some 
       functions which use r->server->port to use ap_get_server_port() instead, 
       because if there's no Port directive in the config r->server->port is 0.
       [Lars Eilebrecht]
    *) get/set_module_config are trivial enough to be better off inline.  Worth
       1.5% performance boost. [Dean Gaudet]
    *) Fix off-by-one error in ap_proxy_date_canon() in proxy_util.c
       when ensuring 'x' is at least 30-chars big. [Jim Jagielski,
       Brian Behlendorf]
    *) [BS2000 security] BS2000 needs an extra authentication to initialize
       the task environment to the unprivileged User id. Otherwise CGI scripts
       would have a way to gain super user access. [Martin Kraemer]
    *) Fix debug log messages for BS2000/OSD: instead of logging the whole
       absolute path, only log base name of logging source as is done
       in unix. [Martin Kraemer]
    *) Ronald Tschalaer's Accept-Encoding patch - preserve the "x-" in
       the encoding type from the Accept-Encoding header (if it's there)
       and use it in the response, as that's probably what it'll be expecting.
    *) Fix to mod_alias: translate_alias_redir is dealing with
       a URI, not a filename, so the check for drive letters for win32 
       and emx is not necessary. [Dean Gaudet]
    *) WIN32: Allow .cmd as an executable extension.
       [Kari Likovuori <>] PR#2146
    *) Make Apache header files, and some variables, C++ friendly.
       [Michael Anderson's <>]
    *) Child processes can now "signal" (by exiting with a status
       of APEXIT_CHILDFATAL) the parent process to abort and
       shutdown the server if the error in the child process was
       fatal enough. [Jim Jagielski]
    *) mod_autoindex's find_itme() was sensitive to MIME type case.
       [Jim Jagielski] PR#2112
    *) Make sure the referer_log and agent_log entries in the default httpd.conf
       file are also adjusted for the actual relative installation paths.
       [Ralf S. Engelschall] PR#2175
    *) WIN32: Extensive overhaul of the way UNCs are handled. [Ben Laurie]
    *) WIN32: Make roots of filesystems (e.g. c:/) work. [Ben Laurie]
    *) PORT: Various porting changes to support AIX 3.2, 4.1.5, 4.2 and 4.3.
       Additionally the checks for finding the vendor DSO library were moved
       from mod_so.c to Configure because first it needs $PLAT etc. and second
       mod_so already uses an abstraction layer and does not fiddle with the
       vendor functions itself.
       [Jens-Uwe Mager, Ralf S. Engelschall]
    *) PORT: Some optimization defines for NetBSD
       [Jaromir Dolecek <>] PR#2165
    *) PORT: Dynamic Shared Object (DSO) support for NetBSD.
       [Jaromir Dolecek <>, Ralf S. Engelschall] PR#2158
    *) Add Dynamic Shared Object (DSO) support for AIX (at least 4.2 but older
       AIX variants should work fine, too. Even AIX 3.x should work). This is
       accomplished by using the free DSO emulation code from Jens-Uwe Mager
       which we put into a os/unix/os-dso-aix.c file.
       [Ralf S. Engelschall]
    *) PORT: Fix compiler warnings under AIX >= 4.2 where the manual pages imply
       that we should use NET_SIZE_T == int but the include files force size_t.
       [Ralf S. Engelschall]
    *) Fix two bugs in select() handling in http_main.c.
       [Roy Fielding]
    *) Suppress "error(0)" messages for ap_log_error() when the APLOG_NOERRNO
       is unset (as it is in situations like timeouts) where it is unclear
       whether errno is set or not.  [Martin Kraemer]
    *) Just having APACI's localstatedir is too general and not enough for most
       of the systems. 1.3b6 again required manual APACI patches by package
       maintainers from RedHat and FreeBSD because for their filesystem layout a
       little bit more flexibility in configuring the paths is needed. Hence we
       provide three additional configure options (--runtimedir, --logfiledir,
       --proxycachedir) which now can be used for more granular adjustments if
       --localstatedir is not enough to fit the particular needs. As a nice
       side-effect this reduces some subdir fiddling in configure+Makefile.tmpl.
       [Ralf S. Engelschall]
    *) Make the install root for "make install" in APACI's Makefile overrideable
       by package authors.  This way we are even more friendly to package
       maintainers (especially Debian and RedHat) who build for the real prefix
       via "configure --prefix=/<real>" but use a different local prefix via
       "make root=/tmp/apache install" for rolling the package without bristling
       the target location on their system. 
       [Ralf S. Engelschall]
    *) Workaround sed limitations in APACI's configure script by now
       substituting in chunks of 50 commands (because for instance HPUX's vendor
       sed has a limit of max. 98 commands)
       [Ralf S. Engelschall] PR#2136
    *) Adding SOCKS5 support and fixing existing SOCKS4 support.
       [Ralf S. Engelschall] PR#2140
    *) Manually fix some symbols which were not renamed to prefix ap_ in the BIG
       RENAMING process because they are defined as pre-processor macros instead
       of real functions: bputc, bgetc, piped_log_write_fd, piped_log_read_fd
       [Ralf S. Engelschall]
    *) Workaround braindead AWK's when generating ap_config.h: The split() and
       substr() functions cannot be nested under vendor AWK from Solaris 2.6.
       [Ralf S. Engelschall] PR#2139
    *) Various bugfixes and cleanups for the APACI configure script:
       o fix IFS handling for _nested_ situation
       o fix Perl interpreter search: take first one found instead of last one
       o fix DSO consistency check
       o print error messages to stderr instead of stdout
       o add install-quiet for --shadow situation to Makefile stub
       o reduce complexity by avoiding sed-hacks for rule and module list loops
       [Ralf S. Engelschall]
    *) Fix DEBUG_CGI situation in mod_cgi.c [David MacKenzie] PR#2114
    *) Make sure the input field separator (IFS) shell variable is explicitly
       initialized correctly before _every_ `for' loop and also restored after
       the loops. [Ralf S. Engelschall]
    *) Make sure that "make install" doesn't overwrite the `mime.types' and
       `magic' files from an existing Apache installation. Because people often
       customize these for own MIME and content types.
       [Ralf S. Engelschall]
    *) PORT: Dynamic Shared Object (DSO) support for OpenBSD 2.x
       [Peter Galbavy, Ralf S. Engelschall] PR#2109
    *) Fix the path to the ScoreBoardFile in the install-config target, too.
       [Ralf S. Engelschall] PR#2105
    *) Let "configure" clear out the users parameters (provided as shell
       variables) to avoid side-effects in "src/Configure" when the user
       exported them (which is not needed, but some users do it). 
       [Ralf S. Engelschall] PR#2101
    *) Provide backward compatibility from some old src/Configuration.tmpl
       parameter names to the canonical Autoconf-style shell variable names. For
       instance CFLAGS vs. EXTRA_CFLAGS. The EXTRA_xxx variants are accepted now
       but a hint message is displayed. [Ralf S. Engelschall]
    *) Make sure that "make install" doesn't overwrite the DocumentRoot and
       CGI scripts from an existing Apache installation. 
       [Ralf S. Engelschall, Jim Jagielski] PR#2084
    *) Make `configure --compat' more "compatible" by first 
       let the libexecdir default to EPREFIX/libexec instead of EPREFIX/bin and
       second by making sure the "avoid-bristling-suffix" /apache is not
       appended to sysconfdir, datadir, localstatedir and includedir when
       --compat is used. [Ralf S. Engelschall, Lars Eilebrecht]
    *) NeXT required strdup() in support/logresolve.c
       [Francisco Tomei <>] PR#2082
    *) AIX required sys/select.h in support/ab.c
       [Jens Schleusener <>] PR#2081
    *) Fix the path to the MimeMagicFile in the install-config target, too.
       [Ralf S. Engelschall] PR#2089
    *) PORT: Added HP-UX 11 patches [Jeff Earickson <>]
    *) If you start apache with the -S command line option it will dump
       out the parsed vhost settings.  This is useful for folks trying
       to figure out what is wrong with their vhost configuration.
       (Other dumps may be added in the future.) [Dean Gaudet]
    *) Add %pA, %pI, and %pp codes to ap_vformatter (and hence ap_bprintf,
       ap_snprintf, and ap_psprintf).  See include/ap.h for docs.
       [Dean Gaudet]
    *) Because /usr/local/apache is the default prefix the ``configure
       --compat'' option no longer has to set prefix, again. This way the
       --compat option honors a leading --prefix option. [Lars Eilebrecht]
    *) PORT: Cast the first argument of dlopen() in ap_os_dso_load()
       to `char *' under OSF1 and FreeBSD 2.x where it is defined this way
       to avoid "discard const" warnings. [Ralf S. Engelschall]
    *) If a specific handler is set for a file yet the request still
       ends up being handled by the default handler, log an error
       message before handling it.  This catches things such as trying 
       to use SSIs without mod_include enabled.  [Marc Slemko]
    *) Fix error logging for the startup case where ap_log_error() still uses
       stderr as the target. Now the default log level is honored here, too.
       [Ralf S. Engelschall]
    *) PORT: Make sure some AWK's don't fail in src/Configure with "string too
       long" errors when generating the MODULES entry for src/Makefile
       [Ben Hyde, Ralf S. Engelschall]
    *) Make sure src/Configure doesn't complain about the old directory
       /usr/local/etc/httpd/ when APACI is used.  [Lars Eilebrecht]
  Changes with Apache 1.3b6
    *) PORT: Clean up warnings on Ultrix and HPUX.  [Ben Hyde]
    *) Adding DSO support for the HP/UX platform by emulating the dlopen-style
       interface via the similar but proprietary HP/UX shl_xxx-style system
       calls. [Ralf S. Engelschall]
    *) PORT: Updated UnixWare 2.0.x and 2.1.x entries for DSO support and made
       APACI Makefile.tmpl "install" target more robust for sensible UnixWare
       Make. [Ralf S. Engelschall]
    *) ++++ THE BIG SYMBOL RENAMING ++++
       To avoid symbol clashes with third-party code compiled into the server,
       we globally applied the prefix "ap_" to the following classes of
          - Apache provided general functions (e.g., ap_cpystrn)
          - Public API functions (e.g., palloc, bgets)
          - Private functions which we can't make static (because of
            cross-object usage) but should be (e.g., new_connection)
       For backward source compatibility a new header file named compat.h was
       created which provides defines for the old symbol names and can be used
       by third-party module authors.
       [The Apache Group]
    *) Added dynamic shared object (DSO) support for SVR4-derivates: The
       problem under SVR4 is that there is no command flag to force the linker
       to export the global symbols of the httpd executable therewith they are
       available to the DSO's. Instead of problematic hacks like creating a file (containing dummy references to all global symbols) the
       httpd binary is linked against, we use a clean trick stolen from Perl 5:
       Placing the Apache core code itself into a DSO library named
       This way the global symbols _HAVE_ to be exported and thus are available
       to any manually loaded DSO's under runtime. To reduce the impact to the
       user to null we go even further and create a stub httpd executable which
       automatically keeps track of the DSO library loading itself and thus
       hides the complete mechanism from the user. Although the generation of
       this DSO library is automatically triggered for platforms which
       essentially need it (mostly all SVR4-derivates) it can be also enabled
       manually via the Rule SHARED_CORE. This can be interesting in the future
       where we perhaps exploit this mechanism for providing nifty
       features like graceful upgrades, or whatever. 
       [Ralf S. Engelschall, Martin Kraemer]
    *) Build the libraries before building the rest of the tools. [Ben Hyde]
    *) Add "distclean" target to src/-Makefiles to provide "make distclean" also
       inside the src subtree (i.e. for non-APACI users). Following GNU Makefile
       conventions while "clean" removes only stuff created by "all" targets,
       "distclean" additionally removes the stuff from the configuration
       process. This way "make distclean" (hence the name) provides a fresh
       source tree as it was for distribution.
       [Ralf S. Engelschall]
    *) Allow top-level (APACI) Makefile to break on build errors
       the same way the src/ subtree Makefiles breaks on them by replacing the
       initial APACI sed-subdir-display-kludge with a more clean
       variable-passing-solution: variable SDP can optionally hold the subdir
       prefix which is consistently used for displaying the subdir movement.
       This way even the top-level Makefile can stop correctly on errors as the
       user expects. [Ralf S. Engelschall]
    *) Fixed ordering of argument checks for RewriteBase directive.
       [Todd Eigenschink <>] PR#2045
    *) Change Win32 IS_MODULE to SHARED_MODULE to match Unix' method of
       indicating that a module is being compiled for dynamic loading. Also
       remove #define IS_MODULE from modules and add SHARED_MODULE define
       to the mak/dsp files. [Alexei Kosut]
    *) Reduce logging level of "normal" warning messages to APLOG_INFO,
       since we are now logging APLOG_WARNING by default. [Roy Fielding]
    *) PORT: OS/2 tweak to deal with multiple .exe targets. [Brian Havard]
    *) Add documentation file and src/Configuration.tmpl entry for the
       experimental mod_mmap_static module. Because although it is and marked as
       an experimental one it is distributed and thus should be documented and
       prepared for configuration the same way as all others modules. 
       [Ralf S. Engelschall]
    *) Add query (-q) option to apxs support tool to be able to manually query
       specific settings from apxs. This is needed for instance when you
       manually want to access Apache's header files and you need to assemble
       the -I option.  Now you can do -I`apxs -q INCLUDEDIR`.
       [Ralf S. Engelschall]
    *) Now src/Configure uses a fallback strategy for the shared object support
       on platforms where no explicit information is available: If a Perl
       installation exists we ask it about its shared object support and if it's
       the dlopen-style one we shamelessly guess the compiler and linker flags
       for creating shared objects from Perls knowledge. Of course, the user is
       warning about what we are doing and informed that he should send us
       the guessed flags when they work. [Ralf S. Engelschall]
    *) Provide APACI --without-support option to be able to disable the build
       and installation of the support tools from the src/support/ area.
       Although its useful to have these installed per default we should provide
       a way to compile and install without them for backward-compatibility.
       [Ralf S. Engelschall]
    *) Add of the new APache eXtenSion (apxs) support tool for building and
       installing modules into an _already installed_ Apache package through the
       dynamic shared object (DSO) mechanism [mod_so.c]. The trick here is that
       this approach actually doesn't need the Apache source tree.  The
       (APACI-installed) server package is enough, because this now includes the
       Apache C header files (PREFIX/include) and the new APXS tool
       (SBINDIR/apxs).  The intend is to provide a handy tool for third-party
       module authors to build their Apache modules _OUTSIDE_ the Apache source
       tree while avoiding them to fiddle around with the totally platform
       dependend way of compiling DSO files. The tool supports all ranges of
       modules, from trivial ones (single mod_foo.c) to complex ones (like PHP3
       which has a mod_php3.c plus a pre-built libmodphp3-so.a) and even can
       on-the-fly generate a minimalistic Makefile and sample module for the
       first step to provide both a quick success event and to demonstrate the
       APXS mechanism to module authors. [Ralf S. Engelschall]
    *) Fix core dumps in use of CONNECT in proxy.  
       [] PR#1326, #1573, #1942
    *) Modify the log directives in httpd.conf-dist files to use CustomLog
       so that users have examples of how CustomLog can be used.
       [Lars Eilebrecht]
    *) Add the new Apache Autoconf-style Interface (APACI) for the top-level of
       the Apache distribution tree.  Until Apache 1.3 there was no real
       out-of-the-box batch-capable build and installation procedure for the
       complete Apache package. This is now provided by a top-level "configure"
       script and a corresponding top-level "Makefile.tmpl" file.  The goal is
       to provide a GNU Autoconf-style frontend which is capable to both drive
       the old src/Configure stuff in batch and additionally installs the
       package with a GNU-conforming directory layout. Any options from the old
       configuration scheme are available plus a lot of new options for flexibly
       customizing Apache. [Ralf S. Engelschall]
    *) The floating point ap_snprintf code wasn't threadsafe.
       Had to remove the HAVE_CVT macro in order to do threadsafe
       calling of the ?cvt() floating point routines.  [Dean Gaudet]
    *) PORT: Add the SCO_SV port. [Jim Jagielski] PR#1962
    *) PORT: IRIX needs the -n32 flag iff using the 'cc' compiler
       [Jim Jagielski] PR#1901
    *) BUG: Configure was using TCC and CC inconsistently. Make sure
       Configure knows which CC we are using. [Jim Jagielski]
    *) "Options +Includes" wasn't correctly merged if "+IncludesNoExec"
       was defined in a parent directory. [Lars Eilebrecht]
    *) API: ap_snprintf() code mutated into ap_vformatter(), which is
       a generic printf-style routine that can call arbitrary output
       routines.  Use this to replace http_bprintf.c.  Add new routines
       psprintf(), pvsprintf() which allocate the exact amount of memory
       required for a string from a pool.  Use psprintf() to clean up
       various bits of code which used ap_snprintf()/pstrdup().
       [Dean Gaudet]
    *) PORT: HAVE_SNPRINTF doesn't do anything any longer.  This is because
       ap_snprintf() has different semantics and formatting codes than
       snprintf().  [Dean Gaudet]
    *) SIGXCPU and SIGXFSZ are now reset to SIG_DFL at boot-time.  This
       is necessary on at least Solaris where the /etc/rc?.d scripts
       are run with these signals ignored, and "SIG_IGN" settings are
       maintained across exec().
       [Rein Tollevik <>] PR#2009
    *) Fix the check for symbolic links in ``RewriteCond ... -l'': stat() was
       used instead of lstat() and thus this flag didn't work as expected.
       [Rein Tollevik <>] PR#2010
    *) Fix the proxy pass-through feature of mod_rewrite for the case of
       existing QUERY_STRING now that mod_proxy was recently changed because of
       the new URL parsing stuff. [Ralf S. Engelschall]
    *) A few changes to scoreboard definitions which helps gcc generate
       better code.  [Dean Gaudet]
    *) ANSI C doesn't guarantee that "int foo : 2" in a structure will
       be a signed bitfield.  So mark a few bitfields as signed to
       ensure correct code.  [Dean Gaudet]
    *) The default for HostnameLookups was changed to Off, but there
       was a problem and it wasn't taking effect. [Dean Gaudet]
    *) PORT: Clean up undefined signals on some platforms (SCO, BeOS).
       [Dean Gaudet]
    *) After a SIGHUP the listening sockets in the parent weren't
       properly marked for closure on fork().
       [Jürgen Keil <>] PR#2000
    *) Allow %2F in two situations: 1) it is in the query part of the URI,
       therefore not exposed to %2F -> '/' translations and 2) the request
       is a proxy request, so we're not dealing with a local resource anyway.
       Without this, the proxy would fail to work for any URL's with
       %2f in them (occurs quite often in
       http://.../cgi-bin/...?http%3A%2F%2F... references) [Martin Kraemer]
    *) Protect against FD_SETSIZE mismatches.  [Dean Gaudet]
    *) Make the shared object compilation command more portable by avoiding
       the direct combination of `-c' & `-o' which is not honored by some
       compilers like UnixWare's cc. [Ralf S. Engelschall]
    *) WIN32: the proxy was creating filenames missing the last four
       characters.  While this normally doesn't stop anything from 
       working, it can result in extra collisions.  
       [Tim Costello <>] PR#1890
    *) Now mod_proxy uses the response string (in addition to the response status
       code) from the already used FTP SIZE command to setup the Content-Length
       header if available. [Ralf S. Engelschall] PR#1183
    *) Reanimated the (still undocumented) proxy receive buffer size directive:
       Renamed from ReceiveBufferSize to ProxyReceiveBufferSize because the old
       name was really too generic, added documentation for this directive to
       the mod_proxy.html and corrected the hyperlink to it in the
       new_features_1.3.html document.  [Ralf S. Engelschall] PR#1348
    *) Fix a bug in the src/helpers/fp2rp script and make it a little bit
       faster [Martin Kraemer]
    *) Make Configure die when you give it an unknown command switch.
       [Ben Hyde]
    *) Add five new and fresh manpages for the support programs: dbmmanage.1,
       suexec.8, htdigest.1, rotatelogs.8 and logresolve.8.  Now all up-to-date
       and per default compiled support programs have manual pages - just to
       document our stuff a little bit more and to be able to do really
       Unix-like installations ;-) [Ralf S. Engelschall]
    *) Major cleanups to the Configure script to make it and its generated
       Makefiles again readable and maintainable: add SRCDIR option, removed
       INCLUDES_DEPTH[0-2] kludge, cleanup of TARGET option, cleanup of
       generated sections, consequently added Makefile headers with inheritance
       information, added subdir movement messages for easier following where
       the build process currently stays (more verbose then standard Make, less
       verbose than GNU make), same style to comments in the Configure script,
       added Apache license header, fixed a few bugs, etc. [Ralf S. Engelschall]
    *) Add the new ApacheBench program "ab" to src/support/: This is derived
       from the ZeusBench benchmarking program and can be used to determine the
       response performance of an Apache installation. This version is
       officially licensed with Zeus Technology, Ltd. See the license agreement
       statements in <> in apache-core.
       [Ralf S. Engelschall]
    *) API: Various core functions that are definately not part of the API
       have been made static, and a few have been marked API_EXPORT.  Still
       more have been marked CORE_EXPORT and are not intended for general
       use by modules.  [Doug MacEachern, Dean Gaudet]
    *) mod_proxy was not clearing the Proxy-Connection header from
       requests; now it does.  This did not violate any spec, however 
       causes poor interactions when you are talking to remote proxies.  
       [Marc Slemko] PR#1741
    *) Various cleanups to the command line interface and manual pages.
       [Ralf S. Engelschall]
    *) cfg_getline() was not properly handling lines that did not end
       with a line termination character.  [Marc Slemko] PR#1869, 1909
    *) Performance tweak to mod_log_config.  [Dmitry Khrustalev]
    *) Clean up some undocumented behavior of mod_setenvif related to
       "merging" two SetEnvIf directives when they match the same header
       and regex.  Document that mod_setenvif will perform comparisons in
       the order they appear in the config file.  Optimize mod_setenvif by
       doing more work at config time rather than at runtime.
       [Dean Gaudet]
    *) src/include/ap_config.h now wraps it's #define's with #ifndef/#endif's
       to allow for modules to overrule them and to reduce redefinition
       warnings [Jim Jagielski]
    *) [PORT] For A/UX change the OS-#define for -DAUX to -DAUX3.
       [Jim Jagielski]
    *) Making the hard-coded cross-module function call mime_find_ct() (from
       mod_proxy to mod_mime) obsolete by making sure the API hook for MIME type
       checking is really called even for proxy requests except for URLs with
       HTTP schemes (because there we can optimize by not running the type
       checking hooks due to the fact that the proxy gets the MIME Content-type
       from the remote host later). This change cleans up mod_mime by removing
       the ugly export kludge, makes the one-liner file mod_mime.h obsolete, and
       especially unbundles mod_proxy and mod_mime. This way they both now can
       be compiled as shared objects and are no longer tied together. 
       [Ralf S. Engelschall]
    *) util.c cleanup and speedup. [Dean Gaudet]
    *) API: Clarification, pstrndup() will always copy n bytes of the source
       and NUL terminate at the (n+1)st byte.  [Dean Gaudet]
    *) Mark module command_rec and handler_rec structures const so that they
       end up in the read-only data section (and are friendlier to systems
       that don't do optimistic memory allocation on fork()). [Dean Gaudet]
    *) Add check to the "Port" directive to make sure the specified 
       port is in the appropriate range.  [Ben Hyde]
    *) Performance improvements to invoke_handler().
       [Dmitry Khrustalev <>]
    *) Added support for building shared objects even for library-style modules
       (which are built from more than one object file). This now provides the
       ability to build mod_proxy as a shared object module. Additionally
       modules like mod_example are now also supported for shared object
       building because the generated Makefiles now no longer assume there is at
       least one statically linked module. [Ralf S. Engelschall]
    *) API: Clarify usage of content_type, handler, content_encoding,
       content_language and content_languages fields in request_rec.  They
       must always be lowercased; and the strings pointed to shouldn't
       be modified (you must copy them to modify them).  Fix a few bugs
       related to this.  [Dean Gaudet]
    *) API: Clarification: except for RAW_ARGS, all command handlers can
       treat the char * parameters as permanent, and modifiable.  There
       is no need to pstrdup() them.  Clean up some needless pstrdup().
       [Dean Gaudet]
    *) Now mod_so keeps track of which module shared objects with which names
       are loaded and thus avoids multiple loading and unloading and irritating
       error_log messages. [Ralf S. Engelschall]
    *) Prior to the existence of mod_setenv it was necessary to tweak the TZ
       environment variable in the apache core.  But that tweaking interferes
       with mod_setenv.  So don't tweak if the user has specified an explicit
       TZ variable.  [Jay Soffian <>] PR#1888
    *) rputs() did not calculate r->sent_bodyct properly.
       [Siegmund Stirnweiss <>] PR#1900
    *) The CGI spec says that REMOTE_HOST should be set to the remote hosts's
       name, or left unset if this value is unavailable.  Apache was setting
       it to the IP address when unavailable.
       [Tony Finch <>] PR#1925
    *) Various improvements to the configuration and build support for compiling
       modules as shared objects. Especially Solaris 2.x, SunOS 4.1, IRIX and
       OSF1 support with GCC and vendor compilers was added.  This way shared
       object support is now provided out-of-the-box for FreeBSD, Linux,
       Solaris, SunOS, IRIX and OSF1. In short: On all major platforms!
       [Ralf S. Engelschall]
    *) Minor cleanup in http_main -- split QNX and OS2 specific "mmap"
       scoreboard code into separate #defines -- USE_POSIX_SCOREBOARD
       and USE_OS2_SCOREBOARD.  [Dean Gaudet]
    *) Fix one more special locking problem for RewriteMap programs in
       mod_rewrite: According to the documentation of flock(), "Locks are on
       files, not file descriptors.  That is, file descriptors duplicated
       through dup(2) or fork(2) do not result in multiple instances of a lock,
       but rather multiple references to a single lock. If a process holding a
       lock on a file forks and the child explicitly unlocks the file, the
       parent will lose its lock.". To overcome this we have to make sure the
       RewriteLock file is opened _AFTER_ the childs were spawned which is now
       the case by opening it in the child_init instead of the module_init API
       hook. [Ralf S. Engelschall] PR#1029
    *) Change to Location and LocationMatch semantics.  LocationMatch no
       longer lets a single slash match multiple adjacent slashes in the
       URL.  This change is for consistency with RewriteRule and
       AliasMatch.  Multiple slashes have meaning in URLs that they do
       not have in (some) filesystems.  Location on the other hand can
       be considered a shorthand for a more complicated regex, and it
       does match multiple slashes with a single slash -- which is
       also consistent with the Alias directive.
       [Dean Gaudet] related PR#1440
    *) Fix bug with mod_mime_magic causing certain files, including files
       of length 0, to result in no response from the server.
       [Dean Gaudet]
    *) The Configure script now generates src/include/ap_config.h which
       contains the set of defines used when Apache is compiled on a platform.
       This file can then be included by external modules before including
       any Apache header files in case they are being built separately from
       Apache.  Along with this change, a couple of minor changes were
       made to make Apache's #defines coexist peacefully with any autoconf
       defines an external module might have. [Rasmus Lerdorf]
    *) Fix mod_rewrite for the ugly API case where <VirtualHost> sections exist
       but without any RewriteXXXXX directives. Here mod_rewrite is given no
       chance by the API to initialize its per-server configuration and thus
       receives the wrong one from the main server. This is now avoided by
       remembering the server together with the config structure while
       configuring and later assuming there is no config when we see a
       difference between the remembered server and the one calling us. 
       [Ralf S. Engelschall] PR#1790
    *) Fixed the DBM RewriteMap support for mod_rewrite: First the support now
       is automatically disabled under configure time when the dbm_xxx functions
       are not available. Second, two heavy source code errors in the DBM
       support code were fixed.  This makes DBM RewriteMap's usable again after
       a long time of brokenness. [Ralf S. Engelschall] PR#1696
    *) Now all configuration files support Unix-style line-continuation via 
       the trailing backslash ("\") character. This enables us to write down
       complex or just very long directives in a more readable way.  The
       backslash character has to be really the last character before the
       newline and it has not been prefixed by another (escaping) backslash.
       [Ralf S. Engelschall]
    *) When using ProxyPass the ?querystring was not passed correctly.
       [Joel Truher <>]
    *) To deal with modules being compiled and [dynamically] linked
       at a different time from the core, the SERVER_VERSION and
       SERVER_BUILT symbols have been abstracted through the new
       API routines apapi_get_server_version() and apapi_get_server_built().
       [Ken Coar]  PR#1448
    *) WIN32: Preserve trailing slash in canonical path (and hence
  	   in PATH_INFO). [Paul Sutton, Ben Laurie]
    *) PORT: USE_PTHREAD_SERIALIZED_ACCEPT has proven unreliable
       depending on the rev of Solaris and what mixture of modules
       are in use.  So it has been disabled, and Solaris is back to
       using USE_FCNTL_SERIALIZED_ACCEPT.  Users may experiment with
       USE_PTHREAD_SERIALIZED_ACCEPT at their own risk, it may speed
       up static content only servers.  Or it may fail unpredictably.
       [Dean Gaudet] PR#1779, 1854, 1904
    *) mod_test_util_uri.c created which tests the logic in util_uri.c.
       [Dean Gaudet]
    *) API: Rewrite of absoluteURI handling, and in particular how
       absoluteURIs match vhosts.  Unless a request is a proxy request, a
       "http://host" url is treated as if a similar "Host:" header had been
       supplied.  This change was made to support future HTTP/1.x protocols
       which may require clients to send absoluteURIs for all requests.
       In order to achieve this change subtle changes were made to the API.  In a
       request_rec, r->hostlen has been removed.  r->unparsed_uri now exists so
       that the unmodified uri can be retrieved easily.  r->proxyreq is not set
       by the core, modules must set it during the post_read_request or
       translate_names phase.
       Plus changes to the virtualhost test suite for absoluteURI testing.
       This fixes several bugs with the proxy proxying requests to vhosts
       managed by the same httpd.
       [Dean Gaudet]
    *) API: Cleanup of code in http_vhost.c, and remove vhost matching
       code from mod_rewrite.  The vhost matching is now performed by a
       globally available function matches_request_vhost().  [Dean Gaudet]
    *) Reduce memory usage, and speed up ServerAlias support.  As a
       side-effect users can list multiple ServerAlias directives
       and they're all considered.
       [Chia-liang Kao <>] PR#1531
    *) The "poly" directive in image maps did not include the borders of the
       polygon, whereas the "rect" directive does.  Fix this inconsistency.
       [Konstantin Morshnev <>] PR#1771
    *) Make \\ behave as expected.  []
    *) Add the `%a' construct to LogFormat and CustomLog to log the client IP
       address. [Todd Eigenschink <>] PR#1885
    *) API: A new source module main/util_uri.c; It contains a routine
       parse_uri_components() and friends which breaks a URI into its component
       parts.  These parts are stored in a uri_components structure called
       parsed_uri within each request_rec, and are available to all modules.
       Additionally, an unparse routine is supplied which re-assembles the URI
       components back to an URI, optionally hiding the username:password@ part
       from ftp proxy requests, and other useful routines.  Within the structure,
       you find on a ready-for-use basis:
  	scheme;     /* scheme ("http"/"ftp"/...) */
  	hostinfo;   /* combined [user[:password]@]host[:port] */
  	user;       /* user name, as in http://user:passwd@host:port/ */
  	password;   /* password, as in http://user:passwd@host:port/ */
  	hostname;   /* hostname from URI (or from Host: header) */
  	port_str;   /* port string (integer representation is in "port") */
  	path;       /* the request path (or "/" if only scheme://host was given) */
  	query;      /* Everything after a '?' in the path, if present */
  	fragment;   /* Trailing "#fragment" string, if present */
       This is meant to serve as the platform for *BIG* savings in
       code complexity for the proxy module (and maybe the vhost logic).
       [Martin Kraemer]
    *) Make all possible meta-construct expansions ($N, %N, %{NAME} and
       ${map:key}) available for all location where a string is created in
       mod_rewrite rewriting rulesets: 1st arg of RewriteCond, 2nd arg of
       RewriteRule and for the [E=NAME:STRING] flag of RewriteRule. This way the
       possible expansions are consequently usable at all string creation
       locations. [Ralf S. Engelschall]
    *) Fix initialization of RewriteLogLevel (default now is 0 as documented 
       and not 1) and the per-virtual-server merging of directives. Now all
       directives except `RewriteEngine' and `RewriteOption' are either
       completely overridden (default) or completely inherited (when
       `RewriteOptions inherit') is used. [Ralf S. Engelschall] PR#1325
    *) Fix `RewriteMap' program lookup in situations where such maps are
       defined but disabled (`RewriteEngine off') in per-server context. 
       [Ralf S. Engelschall] PR#1431
    *) Fix bug introduced in 1.3b4-dev, config with no Port setting would cause
       server to bind to port 0 rather than 80.  [Dean Gaudet]
    *) Fix long-standing problem with RewriteMap _programs_ under Unix derivates
       (like SunOS and FreeBSD) which don't accept the locking of pipes
       directly.  A new directive RewriteLock is introduced which can be used to
       setup a separate locking file which then is used for synchronization.
       [Ralf S. Engelschall] PR#1029
    *) WIN32: The server root is obtained from the registry key
       HKLM\SOFTWARE\Apache Group\Apache\<version> (version is currently
       "1.3 beta"), unless overridden by the -d command line flag. The
       value is stored by running "apache -i -d serverroot". [Paul Sutton]
    *) Merged os/win32/mod_dll.c into modules/standard/mod_so.c to support
       dynamic loading on Win32 and Unix via the same module. [Paul Sutton]
    *) Now mod_rewrite no longer makes problematic assumptions on the characters
       a username can contain when trying to expand it via /etc/passwd. 
       [Ralf S. Engelschall]
    *) The mod_setenvif BrowserMatch backwards compatibility command did not
       work properly with spaces in the regex.  [Ronald Tschalaer] PR#1825
    *) Add new RewriteMap types: First, `rnd' which is equivalent to the `txt'
       type but with a special post-processing for the looked-up value: It
       parses it into alternatives according to `|' chars and then only one
       particular alternative is chosen randomly (this is an essential
       functionality needed for balancing between backend-servers when using
       Apache as a Reverse Proxy.  The looked up value here is a list of
       servers). Second, `int' with the built-in maps named `tolower' and
       `toupper' which can be used to map URL parts to a fixed case (this is an
       essential feature to fix the case of server names when doing mass
       virtual-hosting with the help of mod_rewrite instead of using
       <VirtualHost> sections). [Ralf S. Engelschall, parts based on code from
       Jay Soffian <>] PR#1631
    *) Add a new directive to mod_proxy similar to ProxyPass: `ProxyPassReverse'.
       This directive lets Apache adjust the URL in Location-headers on HTTP
       redirect responses sent by the remote server. This way the virtually
       mapped area is no longer left on redirects and thus by-passed which is
       especially essential when running Apache as a reverse proxy.  
       [Ralf S. Engelschall]
    *) Hide Proxy-Authorization from CGI/SSI/etc just like Authorization is
       hidden. [Alvaro Martinez Echevarria]
    *) Apache will, when started with the -X (single process) debugging flag,
       honor the SIGINT or SIGQUIT signals again now. This capability got lost
       a while ago during OS/2 signal handling changes.
    *) [PORT] Work around the fact that NeXT runs on more than the
       m68k chips in mod_status [Scott Anguish and Timothy Luoma
    *) [PORT] Recognize FreeBSD versions so we can use the OS regex as well
       as handling unsigned-chars for FreeBSD v3 and v2 [Andrey Chernov
       <> and Jim] PR#1450
    *) Use SA_RESETHAND or SA_ONESHOT when installing the coredump handlers.
       In particular the handlers could trigger themselves into an infinite
       loop if RLimitMem was used with a small amount of memory -- too small
       for the signal stack frame to be set up.  [Dean Gaudet]
    *) Fix problems with absoluteURIs introduced during 1.3b4.  [Dean Gaudet,
       Alvaro Martinez Echevarria <>]
    *) Fix multiple UserDir problem introduced during 1.3b4-dev.
       [Dean Gaudet] PR#1850
    *) ap_cpystrn() had an off-by-1 error.
       [Charles Fu <>] PR#1847
    *) API: As Ken suggested the check_cmd_context() function and related
       defines are non-static now so modules can use 'em.  [Martin Kraemer]
    *) mod_info would occasionally produce an unpaired <tt> in its
       output. Fixed. [Martin Kraemer]
    *) By default AIX binds a process (and it's children) to a single
       processor.  httpd children now unbind themselves from that cpu
       and re-bind to one selected at random via bindprocessor()
       [Doug MacEachern]
    *) Linux 2.0 and above implement RLIMIT_AS, RLIMIT_DATA has almost no
       effect.  Work around it by using RLIMIT_AS for the RLimitMEM
       directive.  [Enrik Berkhan <>] PR#1816
    *) mod_mime_magic error message should indicate the filename when
       reads fail.  ["M.D.Parker" <>] PR#1827
    *) Previously Apache would permit </Files> to end <FilesMatch> (and
       similary for Location and Directory), now this is diagnosed as an
       error.  Improve error messages for mismatched sections (<Files>,
       <FilesMatch>, <Directory>, <DirectoryMatch>, ...).
       [Dean Gaudet, Martin Kraemer]
    *) <Files> is not permitted within <Location> (because of the
       semantic ordering).  [Dean Gaudet] PR#379
    *) <Files> with wildcards was broken by the change in wildcard
       semantics (* does not match /).  To fix this, <Files> now
       apply only to the basename of the request filename.  This
       fixes some other inconsistencies in <Files> semantics
       (such as <Files a*b> not working).  [Dean Gaudet] PR#1817
    *) Removed bogus "dist.tar" target from Makefile.tmpl and make sure
       backup files are removed on "clean" target [Ralf S. Engelschall]
    *) PORT: Add -lm to LIBS for HPUX.  [Dean Gaudet] PR#1639
    *) Various errors from select() and accept() in child_main() would
       result in an infinite loop.  It seems these two tickle kernel
       or library bugs occasionally, and result in log spammage and
       a generally bad scene.  Now the child exits immediately,
       which seems to be a good workaround.
       [Dean Gaudet] PR#1747, 1107, 588, 1787, 987, 588
    *) Cleaned up some race conditions in unix child_main during
       initialization. [Dean Gaudet]
    *) SECURITY: "UserDir /abspath" without a * in the path would allow
       remote users to access "/~.." and bypass access restrictions
       (but note /~../.. was handled properly).
       [Lauri Jesmin <>] PR#1701
    *) API: os_is_path_absolute() now takes a const char * instead of a char *.
       [Dean Gaudet]
  Changes with Apache 1.3b5
    *) Source file dependencies in Makefile.tmpl files throughout the
       source tree were updated to accurately reflect reality.
       [Dean Gaudet]
    *) Preserve the content encoding given by the AddEncoding directive
       when the client doesn't otherwise specify an encoding.
       [Ronald Tschalaer <>]
    *) Sort out problems with canonical filename handling happening too late.
       [Dean Gaudet, Ben Laurie]
  Changes with Apache 1.3b4
    *) The module structure was modified to include a *dynamic_load_handle
       in the STANDARD_MODULE_STUFF portion, and the MODULE_MAGIC_NUMBER
       has been bumped accordingly.  [Paul Sutton]
    *) All BrowserMatch directives mentioned in
       htdocs/manual/known_client_problems.html are in the default
       configuration files.  [Lars Eilebrecht]
    *) MiNT port update. [Jan Paul Schmidt]
    *) HTTP/1.1 requires x-gzip and gzip encodings be treated
       equivalent, similarly for x-compress and compress.  Apache
       now ignores a leading x- when comparing encodings.  It also
       preserves the encoding the client requests (for example if
       it requests x-gzip, then Apache will respond with x-gzip
       in the Content-Encoding header).
       [Ronald Tschalaer <>] PR#1772
    *) Fix a memory leak on keep-alive connections.  [Igor Tatarinov]
    *) Added mod_so module to support dynamic loading of modules on Unix
       (like mod_dld for Win32). This replaces mod_dld.c. Use SharedModule
       instead of AddModule in Configuration to build shared modules
       [Sameer Parekh, Paul Sutton]
    *) Minor cleanups to r->finfo handling in some modules.
       [Dean Gaudet]
    *) Abstract read()/write() to ap_read()/ap_write().
       Makes it easier to add other types of IO code such as SFIO.
       [Randy Terbush]
    *) API: Generalize default_port manipulations to make support of
       different protocols easier. [Ben Laurie, Randy Terbush]
    *) There are many cases where users do not want Apache to form
       self-referential urls using the "canonical" ServerName and Port.
       The new UseCanonicalName directive (default on), if set to off
       will cause Apache to use the client-supplied hostname and port.
       API: Part of this change required a change to the construct_url()
       prototype; and the addition of get_server_name() and
       [Michael Douglass <>, Dean Gaudet]
       PR#315, 459, 485, 1433
    *) Yet another rearrangement of the source tree.. now all the common
       header files are in the src/include directory.  The -Imain -Iap
       references in Makefiles have been changed to the simpler -Iinclude
       instead.  In addition to simplifying the build a little bit, this
       also makes it clear when a module is referencing something in a
       other than kosher manner (e.g., the proxy including mod_mime.h).
       Module-private header files (the proxy, mod_mime, the regex library,
       and mod_rewrite) have not been moved to src/include; nor have
       the OS-abstraction files.  [Ken Coar]
    *) Fix a bug where r->hostname didn't have the :port stripped
       from it.  [Dean Gaudet]
    *) Tweaked the headers_out table size, and the subprocess_env
       table size guess in rename_original_environment().  Added
       MAKE_TABLE_PROFILE which can help discover make_table()
       calls that use too small an initial guess, see alloc.c.
       [Dean Gaudet]
    *) Options and AllowOverride weren't properly merging in the main
       server setting inside vhosts (only an issue when you have no
       <Directory> or other section containing an Options that affects
       a request).  Options +foo or -foo in the main_server wouldn't
       affect the main_server's lookup defaults.  [Dean Gaudet]
    *) Variable 'cwd' was being used pointlessly before being set.
       [Ken Coar] PR#1738
    *) r->allowed handling cleaned up in the standard modules.
       [Dean Gaudet]
    *) Some case-sensitivity issues cleaned up to be consistent with
       RFC2068.  [Dean Gaudet]
    *) SIGURG doesn't exist everywhere.
       [Mark Andrew Heinrich <heinrich@tinderbox.Stanford.EDU>]
    *) mod_unique_id was erroneously generating a second unique id when
       an internal redirect occured.  Such redirects occur, for example,
       when processing a DirectoryIndex match.  [Dean Gaudet]
    *) API: table_add, table_merge, and table_set include implicit pstrdup()
       of the key and value.  But in many cases this is not required
       because the key/value is a constant, or the value has been built
       by pstrcat() or other similar means.  New routines table_addn,
       table_mergen, and table_setn have been added to the API, these
       routines do not pstrdup() their arguments.  The core code and
       standard modules were changed to take advantage of these routines.
       The resulting server is up to 20% faster in some situations.
       Note that it is easy to get code subtly wrong if you pass a key/value
       which is in a pool other than the pool of the table.  The only
       safe thing to do is to pass key/values which are in the pool of
       the table, or in one of the ancestors of the pool of the table.
       i.e. if the table is part of a subrequest, a value from the main
       request's pool is OK since the subrequest pool is a sub_pool of the
       main request's pool (and therefore has a lifespan at most as long as
       the main pool).  There is debugging code which can detect improper
       usage, enabled by defining POOL_DEBUG.  See alloc.c for more details.
       [Dmitry Khrustalev <>, Dean Gaudet]
    *) More mod_mime_magic cleanup:  fewer syscalls; should handle "files"
       which don't exist on disk more gracefully; handles vhosts properly.
       Update documentation to reflect the code -- if there's no
       MimeMagicFile directive then the module is not enabled.
       [Dean Gaudet]
    *) PORT: Some older *nix dialects cannot automatically start scripts
       which begin with a #! interpreter line (the shell starts the scripts
       appropriately on these platforms). Apache now supports starting of
       "hashbang-scripts" when the NEED_HASHBANG_EMUL define is set.
       [Martin Kraemer, with code from (Peter Wemm)
       taken from tcsh]
    *) API: "typedef array_header table" removed from alloc.h, folks should
       have been writing to use table as if it were an opaque type, but even
       some standard modules got this wrong.  By changing the definition
       to "typedef struct table table" module authors will receive compile
       time warnings that they're doing the wrong thing.  This change
       facilitates future changes with more sophisticated table
       structures.  Specifically, module authors should be using table_elts()
       to get access to an array_header * for the table. [Dean Gaudet]
    *) API: Renamed new_connection() to avoid namespace collision with LDAP
       library routines.  [Ken Coar, Rasmus Lerdorf]
    *) WIN32: mod_speling is now available on the Win32 platform.
       [Marc Slemko]
    *) For clarity the following compile time definition was changed:
       Also, for example, HAVE_MMAP would mean to use mmap() scoreboards
       and not be a general notice that the OS has mmap(). Now the
       HAVE_MMAP/SHMGET #defines strictly are informational that the
       OS has that method of shared memory; the type to use for
       the scoreboard is a seperate #define (USE_MMAP_SCOREBOARD
       and USE_SHMGET_SCOREBOARD). This allows outside modules to
       determine if shared memory is available and allows Apache
       to determine the best method to use for the scoreboard.
       [Jim Jagielski]
    *) PORT: UnixWare 2.1.2 SMP appears to require USE_FCNTL_SERIALIZED_ACCEPT,
       as do various earlier versions.  It should be safe on all versions.
       Unixware 1.x appears to have the same SIGHUP bug as solaris does with
       the slack code.  A few other cleanups for Unixware.
       [Tom Hughes <>] PR#1082, PR#1282, PR#1499, PR#1553
    *) PORT: A/UX can handle single-listen accepts without mutex
       locking, so we add SINGLE_LISTEN_UNSERIALIZED_ACCEPT. [Jim Jagielski]
    *) When die() happens we need to eat any request body if one exists.
       Otherwise we can't continue with a keepalive session.  This shows up
       as a POST problem with MSIE 4.0, typically against pages which are
       authenticated.  [Roy Fielding] PR#1399
    *) If you define SECURITY_HOLE_PASS_AUTHORIZATION then the Authorization
       header will be passed to CGIs.  This is generally a security hole, so
       it's not a default.  [Marc Slemko] PR#549
    *) Fix Y2K problem with date printing in suexec log.
       [Paul Eggert <>] PR#1343
    *) WIN32 deserves a pid file.  [Ben Hyde]
    *) suexec errors now include the errno/description.  [Marc Slemko] PR#1543
    *) PORT: OSF/1 now uses USE_FLOCK_SERIALIZED_ACCEPT to solve PR#467.
       The choice of flock vs. fcntl was made based on timings which showed that
       even on non-NFS, non-exported filesystems fcntl() was an order of
       magnitude slower.  It also uses SINGLE_LISTEN_UNSERIALIZED_ACCEPT so
       that single socket users will see no difference. [Dean Gaudet] PR#467
    *) "File does not exist" error message was erroneously including the
       errno.  [Marc Slemko]
    *) Improve the warning message generated when a client drops the
       connection (hits stop button, etc.) during a send.  [Roy Fielding]
    *) Defining GPROF will disable profiling in the parent and enable it
       in the children.  If you're profiling under Linux this is pretty much
       necessary because SIGPROF is lost across a fork(). [Dean Gaudet]
    *) htdigest and htpasswd needed slight tweaks to work on OS/2 and WIN32.
       [Brian Havard]
    *) The NeXT cc (which is gcc hacked up) doesn't appear to support some
       gcc functionality.  Work around it.
       [Keith Severson <>] PR#1613
    *) Some linkers complain when .o files contain no functions.
       [Keith Severson <>] PR#1614
    *) Some const declarations in mod_imap.c that were added for debugging
       purposes caused some compilers heartburn without adding any
       significant value, so they've been removed.  [Ken Coar]
    *) The src/main/*.h header files have had #ifndef wrappers added to
       insulate them against duplicate calls if they get included through
       multiple paths (e.g., in .c files as well as other .h files).
       [Ken Coar]
    *) The libap routines now have a header file for their prototypes,
       src/ap/ap.h, to ease their use in non-httpd applications.  [Ken Coar]
    *) mod_autoindex with a plaintext header file would emit the <PRE>
       start-tag before the HTML preamble, rather than after the preamble
       but before the header file contents.  [John Van Essen <>]
    *) SECURITY: Fix a possible buffer overflow in logresolve.  This is
       only an issue on systems without a MAXDNAME define or where
       the resolver returns domain names longer than MAXDNAME.  [Marc Slemko]
    *) SECURITY: Eliminate possible buffer overflow in cfg_getline, which
       is used to read various types of files such as htaccess and
       htpasswd files.  [Marc Slemko]
    *) SECURITY: Ensure that the buffer returned by ht_time is always
       properly null terminated.  [Marc Slemko]
    *) The "Connection" header could be sent back with multiple "close"
       tokens.  Not an error, but a waste.
       [] PR#1683
    *) mod_rewrite's RewriteLog should behave like mod_log_config, it
       shouldn't force hostname lookups.  [Dean Gaudet] PR#1684
    *) "basic" auth needs a case-insensitive comparison.
       [] PR#1666
    *) For maximum portability, the environment passed to CGIs should
       only contain variables whose names match the regex
       /[a-zA-Z][a-zA-Z0-9_]*/.  This is now enforced by stamping
       underscores over any character outside the regex.  This
       affects HTTP_* variables, in a way that should be backward
       compatible for all the standard headers; and affects variables
       set with SetEnv/BrowserMatch and similar directives.
       [Dean Gaudet]
    *) mod_speling returned incorrect HREF's when an ambigous match
       was found. Noticed by <> (Soeren Ziehe)
       [ (Soeren Ziehe), Martin Kraemer]
    *) PORT: Apache now compiles & runs on an EBCDIC mainframe
       (the Siemens BS2000/OSD family) in the POSIX subsystem
       [Martin Kraemer]
    *) PORT: Fix problem killing children when terminating.  Allow ^C
       to shut down the server.  [Brian Havard]
    *) pstrdup() is implicit in calls to table_* functions, so there's
       no need to do it before calling.  Clean up a few cases.
       [Marc Slemko, Dean Gaudet]
    *) new -C and -c command line arguments
       -C "directive" : process directive before reading config files
       -c "directive" : process directive after reading config files
       httpd -C "PerlModule Apache::httpd_conf"
       [Doug MacEachern, Martin Kraemer]
    *) WIN32: Fix the execution of CGIs that are scripts and called 
       with path info that does not have an '=' in.
       (eg. http://server/cgi-bin/printenv?foobar)  
       [Marc Slemko] PR#1591
    *) WIN32: Fix a call to os_canonical_filename so it doesn't try to 
       mess with fake filenames.  This fixes proxy caching on 
       win32. PR#1265
    *) SECURITY: General mod_include cleanup, including fixing several
       possible buffer overflows and a possible infinite loop.
       [Dean Gaudet, Marc Slemko]
    *) SECURITY: Numerous changes to mod_imap in a general cleanup
       including fixing a possible buffer overflow.  [Dean Gaudet]
    *) WIN32: overhaul of multithreading code. Shutdowns are now graceful
       (connections are not dropped). Code can handle graceful restarts
       (but there is as yet no way to signal this to Apache). Various
       other cleanups. [Paul Sutton]
    *) The aplog_error changes specific to 1.3 introduced a buffer
       overrun in the (now legacy) log_printf function.  Fixed.
       [Dean Gaudet]
    *) mod_digest didn't properly deal with proxy authentication.  It
       also lacked a case-insensitive comparision of the "Digest"
       token.  [Ronald Tschalaer <>] PR#1599
    *) A few cleanups in mod_status for efficiency.  [Dean Gaudet]
    *) A few cleanups in mod_info to make it thread-safe, and remove an
       off-by-5 bug that could hammer \0 on the stack. [Dean Gaudet]
    *) no2slash() was O(n^2) in the length of the input.  Make it O(n).
       [Dean Gaudet]
    *) API: migration from strncpy() to our "enhanced" version called
       ap_cpystrn() for performance and functionality reasons.
       Located in libap.a.  [Jim Jagielski]
    *) table_set() and table_unset() did not deal correctly with
       multiple occurrences of the same key. [Stephen Scheck
  	 <>, Ben Laurie] PR#1604
    *) The AuthName must now be enclosed in quotes if it is to contain
       spaces.  [Ken Coar] PR#1195
    *) API: new function: ap_escape_quotes(). [Ken Coar] PR#1195
    *) WIN32: Work around optimiser bug that killed ISAPI in release
       versions. [Ben Laurie] PR#1533
    *) PORT: Update the MPE port [Mark Bixby, Jim Jagielski]
    *) Interim (slow) fix for p->sub_pool critical sections in
       alloc.c (affects win32 only).  [Ben Hyde]
    *) non-WIN32 was missing destroy_mutex definition.  [Ben Hyde]
    *) send_fd_length() did not calculate total_bytes_sent properly.
       [Ben Reser <>] PR#1366
    *) The bputc() macro was not properly integrated with the chunking
       code; in many cases modules using bputc() could cause completely
       bogus chunked output.  (Typically this will show up as problems
       with Internet Explorer 4.0 reading a page, but other browsers
       having no problem.) [Dean Gaudet]
    *) Create LARGE_WRITE_THRESHOLD define which determines how many
       bytes have to be supplied to bwrite() before it will consider
       doing a writev() to assemble multiple buffers in one system
       call.  This is critical for modules such as mod_include,
       mod_autoindex, mod_php3 which all use bputc()/bputs() of smaller
       strings in some cases.  The result would be extra effort
       setting up writev(), and in many cases extra effort building
       chunks.  The default is 31, it can be overriden at compile
       time. [Dean Gaudet]
    *) Move the gid switching code into the child so that log files
       and pid files are opened with the root gid.
       [Gregory A Lundberg <>]
    *) WIN32: Check for binaries by looking for the executable header
       instead of counting control characters.
  	 [Jim Patterson <Jim.Patterson@Cognos.COM>] PR#1340
    *) ap_snprintf() moved from main/util_snprintf.c to ap/ap_snprintf.c
       so the functionality is available to applications other than the
       server itself (like the src/support tools).  [Ken Coar]
    *) ap_slack() moved out of main/util.c into ap/ap_slack.c as part of
       the libap consolidation work.  [Ken Coar]
    *) ap_snprintf() with a len of 0 behaved like sprintf().  This is not
       useful, and isn't what the standards require.  Now it returns 0
       and writes nothing.  [Dean Gaudet]
    *) When an error occurs in fcntl() locking suggest the user look up
       the docs for LockFile.  [Dean Gaudet]
    *) Eliminate some dead code from writev_it_all().
       [Igor Tatarinov <>]
    *) mod_autoindex had an fread() without checking the result code.
       It also wouldn't handle "AddIconByType (TXT,/icons/text.gif text/*"
       (note the missing closing paren) properly.  [Dean Gaudet]
    *) It appears the "257th byte" bug (see
       htdocs/manual/misc/known_client_problems.html#257th-byte) can happen
       at the 256th byte as well.  Fixed.  [Dean Gaudet]
    *) PORT: Fix mod_mime_magic under OS/2, no support for block devices.
       [Brian Havard]
    *) Fix memory corruption caused by allocating auth usernames in the
       wrong pool.  [Dean Gaudet] PR#1500
    *) Fix an off-by-1, and an unterminated string error in
       mod_mime_magic.  [Dean Gaudet]
    *) Fix a potential SEGV problem in mod_negotiation when dealing
       with type-maps.  [Dean Gaudet]
    *) Better glibc support under Linux.  [Dean Gaudet] PR#1542
    *) "RedirectMatch gone /" would cause a SIGSEGV. [Dean Gaudet] PR#1319
    *) WIN32: avoid overflows during file canonicalisations.
       [] PR#1378
    *) WIN32: set_file_slot() didn't detect absolute paths. [Ben Laurie]
       PR#1511, 1508
    *) WIN32: mod_status display header didn't match fields. [Ben Laurie]
    *) The pthread_mutex_* functions return an error code, and don't
       set errno.  [Igor Tatarinov <>]
    *) WIN32: Allow spaces to prefix the interpreter in #! lines.
       [Ben Laurie] PR#1101
    *) WIN32: Cure file leak in CGIs. [Peter Tillemans <>] PR#1523
    *) proxy_ftp: the directory listings generated by the proxy ftp module
       now have a title in which the path components are clickable and allow
       quick navigation to the clicked-on directory on the currently listed
       ftp server. This also fixes a bug where the ".." directory links would
       sometimes refer to the wrong directory.  [Martin Kraemer]
    *) WIN32: Allocate the correct amount of memory for the scoreboard.
       [Ben Hyde] PR#1387
    *) WIN32: Only lowercase the part of the path that is real. [Ben Laurie]
    *) Fix problems with timeouts in inetd mode and -X mode.  [Dean Gaudet]
    *) Fix the spurious "(0)unknown error: mmap_handler: mmap failed"
       error messages. [Ben Hyde]
  Changes with Apache 1.3b3
    *) WIN32: Work around brain-damaged spawn calls that can't deal
       with spaces and slashes.  [Ben Laurie]
    *) WIN32: Fix the code so CGIs can use socket calls on Windows.  
       The problem was that certain undocumented environment variables
  	 needed for sockets to work under Win32 were not being passed.
       [Frank Faubert <>]
    *) Add a "-V" command line flag to the httpd binary.  This 
       flag shows some of the defines that Apache was compiled with.
       It is useful for debugging purposes.  [Martin Kraemer]
    *) Start separating the ap_*() routines into their own library, so they
       can be used by items in src/support among other things.  
       [Ken Coar] PR#512, 905, 1252, 1308 
    *) Give a more informative error when no AuthType is set.
       [Lars Eilebrecht]
    *) Remove strtoul() use from mod_proxy because it isn't available
       on all platforms.   [Marc Slemko] PR#1214
    *) WIN32: Some Win32 systems terminated all responses after 16 kB. 
       This turns out to be a bug in Winsock - select() doesn't always 
       return the correct status.  [Ben Laurie]
    *) Directives owned by http_core can now use the new check_cmd_context()
       routine to ensure that they're not being used within a container
       (e.g., <Directory>) where they're invalid.  [Martin Kraemer]
    *) PORT: Recent changes made it necessary to add explicit prototype
       for fgetc() and fgets() on SunOS 4.x.  [Martin Kraemer, Ben Hyde]
    *) It was necessary to distinguish between resources which are
       allocated in the parent, for cleanup in the parent, and resources
       which are allocated in each child, for cleanup in each child.
       A new pool was created which is passed to the module child_init
       and child_exit functions; modules are free to register per-child
       cleanups there.  This fixes a bug with reliable piped logs.
       [Dean Gaudet]
    *) mod_autoindex wasn't displaying the ReadmeName file at the bottom
       unless it was also doing FancyIndexes, but it displayed the
       HeaderName file at the top under all circumstances.  It now shows
       the ReadmeName file for simple indices, too, as it should.  
       [Ken Coar] PR#1373
    *) http_core was mmap()ing even in cases where it wasn't going to
       read the file.  [Ben Hyde <>]
    *) Complete rewrite ;-) of mod_rewrite's URL rewriting engine:
       Now the rewriting engine (the heart of mod_rewrite) is organized more
       straight-forward, first time well documented and reduced to the really
       essential parts. All redundant cases were stripped off and processing now
       is the same for both per-server and per-directory context with only a
       minimum difference (the prefix stripping in per-dir context). As a
       side-effect some subtle restrictions and two recently discovered problems
       are gone: Wrong escaping of QUERY_STRING on redirects in per-directory
       context and restrictions on the substitution URL on redirects.
       Additionally some minor source cleanups were done. 
       [Ralf S. Engelschall] 
    *) Lars Eilebrecht wrote a whole new set of Apache Vhost Internals
       documentation, examples, explanations and caveats. They live in a new
       subdirectory htdocs/manual/vhost/. [Lars Eilebrecht <>]
    *) If ap_slack fails to allocate above the low slack line it's a good
       indication that further problems will occur; it's a better indication
       than many external libraries give us when we actually run out of
       descriptors.  So report it to the user once per restart.
       [Dean Gaudet] PR#1181
    *) Change mod_include and mod_autoindex to use Y2K-safe date formats
       by default.  [Ken Coar]
    *) Add a "SuppressColumnSorting" option to the IndexOptions list,
       which will keep the column heading from being links for sorting
       the display.  [Ken Coar, suggested by Brian Tiemann <>]
       PR #1261
    *) PORT: Update the LynxOS port.  [Marius Groeger <>]
    *) Fix logic error when issuing a mmap() failed message
       with a non-zero MMAP_THRESHOLD.
       [David Chambers <>] PR#1294
    *) Preserve handler value on ProxyPass'ed requests by not
       calling find_types on a proxy'd request; fixes problems
       where some ProxyPass'ed URLs weren't actually passed
       to the proxy.
       [Lars Eilebrecht] PR#870
    *) Fix a byte ordering problem in mod_access which prevented
       the old-style syntax (i.e. "a.b.c." to match a class C)
       from working properly. [Dean Gaudet] PR#1248, 1328, 1384
    *) Fix problem with USE_FLOCK_SERIALIZED_ACCEPT not working
       properly. Each child needs to open the lockfile instead
       of using the passed file-descriptor from the parent. 
       [Jim Jagielski] PR#1056
    *) Fix the error logging in mod_cgi; the recent error log changes
       introduced a bug that prevented it from working correctly.
       [M.D.Parker] PR#1352
    *) Default to USE_FCNTL_SERIALIZED_ACCEPT on HPUX to properly 
       handle multiple Listen directives.  [Marc Slemko] PR#872
    *) Inherit a bugfix to fnmatch.c from FreeBSD sources.
       ["[KOI8-R] įĪÄŅÅŹ žÅŅĪĻ×" <>] PR#1311
    *) When a configuration parse complained about a bad directive,
       the logger would use whatever (unrelated) value was in errno.
       errno is now forced to EINVAL first in this case.  [Ken Coar]
    *) A sed command in the Configure script pushed the edge of POSIXness,
       breaking on some systems.  [Bhaba R.Misra <>] PR#1368
    *) Solaris >= 2.5 was totally broken due to a mess up using pthread
       mutexes.  [Roy Fielding, Dean Gaudet]
    *) OS/2 Port updated; it should be possible to build OS/2 from the same
       sources as Unix now.  [Brian Havard <>]
    *) Fix a year formatting bug in mod_usertrack.
       [Paul Eggert <>] PR#1342
    *) A mild SIGTERM/SIGALRM race condition was eliminated.
       [Dean Gaudet] PR#1211
    *) Warn user that default path has changed if /usr/local/etc/httpd
       is found on the system.  [Lars Eilebrecht]
    *) Various mod_mime_magic bug fixes and cleanups: Uncompression
       should work, it should work on WIN32, and a few resource
       leaks and abort conditions are fixed.
       [Dean Gaudet] PR#1205
    *) PORT: On AIX 1.x files can't be named '@', fix the proxy cache
       to use '%' instead of '@' in its encodings.
       [David Schuler <>] PR#1317
    *) Improve the warning message generated when the "server is busy".
       [Dean Gaudet] PR#1293
    *) PORT: All ports which don't otherwise define DEF_WANTHSREGEX will
       get Spencer regex by default.  This is to avoid having to
       discover bugs in operating system libraries.  [Dean Gaudet]
    *) PORT: "Fix" PR#467 by generating warnings on systems which we have
       not been able to get working USE_*_SERIALIZED_ACCEPT settings for.
       Document this a bit more in src/PORTING.  [Dean Gaudet] PR#467
    *) Ensure that one copy of config warnings makes it to the
       error_log.  [Dean Gaudet]
    *) Invent new structure and associated methods to handle config file
       reading. Add "custom" hook to use config file cfg_getline() on
       something which is not a FILE*  [Martin Kraemer]
    *) Make single-exe Windows install. [Ben Laurie and Eric Esselink]
    *) WIN32: Make CGI work under Win95. [Ben Laurie and Paul Sutton]
    *) WIN32: Make index.html and friends work under Win95. [Ben Laurie]
    *) PORT: Solaris 2.4 needs Spencer regex, the system regex is broken.
  	[John Line <>] PR#1321
    *) Default pathname has been changed everywhere to /usr/local/apache
       [Sameer <>]
  	[David Bronder <>] PR#849
    *) PORT: i386 AIX does not have memmove.
       [David Schuler <>] PR#1267
    *) PORT: HPUX now defaults to using Spencer regex.
       [Philippe Vanhaesendonck <>,
       Omar Del Rio <>] PR#482, 1246
    *) PORT: Some versions of NetBSD don't automatically define
  	    __NetBSD__.  Workaround by defining NETBSD.
       [Chris Craft <>] PR#977
    *) PORT: UnixWare 2.x requires -lgen for syslog.
       [Hans Snijder <>] PR#1249
    *) PORT: ULTRIX appears to not have syslog.
       [Lars Eilebrecht <>]
    *) PORT: Basic Gemini port (treat it like unixware212).
       ["Pavel Yakovlev (Paul McHacker)" <>]
    *) PORT: All SVR4 systems now use NET_SIZE_T = size_t, and
       [Martin Kraemer]
    *) Various improvements in detecting config file errors (missing closing
       directives for <Directory>, <Files> etc. blocks, prohibiting global
       server settings in <VirtualHost> blocks, flagging unhandled multiple
       arguments to <Directory>, <Files> etc.)
       [Martin Kraemer]
    *) Add support to suexec wrapper program for mod_unique_id's UNIQUE_ID
       variable to provide this one to suexec'd CGIs, too.
       [M.D.Parker <>] PR#1284
    *) New support tool: src/support/split-logfile, a sample Perl script which
       splits up a combined access log into separate files based on the
       name of the virtual host (listed first in the log records by "%v").
       [Ken Coar]
  Changes with Apache 1.3b2 (there is no 1.3b1)
    *) TestCompile was not passing $LIBS [Dean Gaudet]
    *) Makefile.tmpl was not using $CFLAGS in the link phase. 
       [Martin Kraemer]
    *) Add debugging code to alloc.c.  Defining ALLOC_DEBUG provides a
       rudimentary memory debugger which can be used on live servers with
       low impact -- it sets all allocated and freed memory bytes to 0xa5.
       Defining ALLOC_USE_MALLOC will cause the alloc code to use malloc()
       and free() for each object.  This is far more expensive and should
       only be used for testing with tools such as Electric Fence and
       Purify.  See main/alloc.c for more details.  [Dean Gaudet]
    *) Configure uses a sh trap and didn't set its exitcode properly.
       [Dean Gaudet] PR#1159
    *) Yet another vhost revamp.  Add the NameVirtualHost directive which
       explicitly lists the ip:port pairs that are to be used for name-vhosts.
       From a given ip:port, regardless what the Host: header is, you can
       only reach the vhosts defined on that ip:port.  The precedence of
       vhosts was reversed to match other precedences in the config --
       the earlier vhosts override the later vhosts.  All vhost matching was
       moved into http_vhost.[ch].  [Dean Gaudet]
    *) ap_inline can be used to force inlining.  GNUC __attribute__() can
       be used for whatever reason is appropriate (i.e. format() warnings
       for printf style functions).  Both are enabled only with
       gcc >= 2.7.x (so that we have fewer support issues with older
       versions).  [Dean Gaudet]
    *) Fix support for Proxy Authentication (we were testing the response
       status too early). [Marc Slemko]
    *) CoreDumpDirectory directive directs where the core file is
       written when a SIGSEGV, SIGBUS, SIGABORT or SIGABRT are
       received.  [Marc Slemko, Dean Gaudet]
    *) PORT: Support for Atari MINT.
       [Jan Paul Schmidt <>]
    *) When booting, apache will now detach itself from stdin, stdout,
       and stderr.  stderr will not be detached until after the config
       files have been read so you will be able to see initial error
       messages.  After that all errors are logged in the error_log.
       This makes it more convenient to start apache via rsh, ssh,
       or crontabs.  [Dean Gaudet] PR#523
    *) mod_proxy was sending HTTP/1.1 responses to ftp requests by mistake.
       Also removed the auto-generated link to that was the
       source of so many misdirected bug reports.  [Roy Fielding, Marc Slemko]
    *) send_fb would not detect aborted connections in some situations.
       [Dean Gaudet]
    *) mod_include would use uninitialized data when parsing certain
       expressions involving && and ||. [Brian Slesinsky] PR#1139
    *) mod_imap should only handle GET methods.  [Jay Bloodworth]
    *) suexec.c wouldn't build without -DLOG_EXEC. [Jason A. Dour]
    *) mod_autoindex improperly counted &escapes; as more than one
       character in the description.  It also improperly truncated
       descriptions that were exactly the maximum length.
       [Martin Kraemer]
    *) RedirectMatch was not properly escaping the result (PR#1155).  Also
       "RedirectMatch /advertiser/(.*) $1" is now permitted.
       [Dean Gaudet]
    *) mod_include now uses symbolic names to check for request success
       and return HTTP errors, and correctly handles all types of
       redirections (previously it only did temporary redirect correctly).
       [Ken Coar, Roy Fielding]
    *) mod_userdir was modifying r->finfo in cases where it wasn't setting
       r->filename.  Since those two are meant to be in sync with each other
       this is a bug.  ["Paul B. Henson" <>]
    *) PORT: Support Unisys SVR4, whose uname returns mostly useless data.
       ["Kaufman, Steven E" <>]
    *) Inetd mode (which is buggy) uses timeouts without having setup the
       jmpbuffer. [Dean Gaudet] PR#1064
    *) Work around problem under Linux where a child will start looping
       reporting a select error over and over.
       [Rick Franchuk <>] PR#1107, 987, 588
    *) Fixed error in proxy_util.c when looping through multiple host IP
       addresses. [Lars Eilebrecht] PR#974
    *) If BUFFERED_LOGS is defined then mod_log_config will do atomic
       buffered writes -- that is, it will buffer up to PIPE_BUF (i.e. 4k)
       bytes before writing, but it will never split a log entry across a
       buffer boundary.  [Dean Gaudet]
    *) API: the short_score record has been split into two pieces, one which
       the parent writes on, and one which the child writes on.  As part of
       this change the get_scoreboard_info() function was removed, and
       scoreboard_image was exported.  This change fixes a race condition
       in file based scoreboard systems, and speeds up changes involving the
       scoreboard in earlier 1.3 development.  [Dean Gaudet]
    *) API: New register_other_child() API (see http_main.h) which allows
       modules to register children with the parent for maintenance.  It
       is disabled by defining NO_OTHER_CHILD.  [Dean Gaudet]
    *) API: New piped_log API (see http_log.h) which implements piped logs,
       and will use register_other_child to implement reliable piped logs
       when it is available.  The reliable piped logs part can be disabled
       by defining NO_RELIABLE_PIPED_LOGS.  At the moment reliable piped
       logs is only available on Unix. [Dean Gaudet]
    *) API: set_last_modified() broken into set_last_modified(), set_etag(), and
       meets_conditions().  This allows conditional HTTP selection to be
       handled separately from the storing of the header fields, and provides
       the ability for CGIs to set their own ETags for conditional checking.
       [Ken Coar, Roy Fielding]  PR#895
    *) Changes to mod_log_config to allow naming of format strings.
       Format nicknames are defined with "LogFormat fmt nickname", and can
       be used with "LogFormat nickname" and "CustomLog logtarget nickname".
       [Ken Coar]
    *) New module, "mod_speling", which can help find files even when 
       the URL is slightly misspelled. [Martin Kraemer, Alexei Kosut]
    *) API: New function child_terminate() triggers the child process to
       exit, while allowing the child finish what it needs to for the
       current request first.  
       [Doug MacEachern, Alexei Kosut]
    *) Windows now defaults to using full status reports with mod_status.
       [Alexei Kosut] PR #1094
    *) *Really* disable all mod_rewrite operations if the engine is off.
       Some things (like RewriteMaps) were checked/performed even if they
       weren't supposed to be.  [Ken Coar] PR #991
    *) Implement a new timer scheme which eliminates the need to call alarm() all
       the time.  Instead a counter in the scoreboard for each child is used to
       show when the child has made forward progress.  The parent samples this
       counter every scoreboard maintenance cycle, and issues SIGALRM if no
       progress has been made in the timeout period.  This reduces the static
       request best-case syscall count to 22 from 29.  This scheme is only
       used by systems with memory-based scoreboards.  [Dean Gaudet]
    *) The proxy now properly handles CONNECT requests which are sent
       to proxy servers when using ProxyRemote.  [Marc Slemko] PR#1024
    *) A script called apachectl has been added to the support 
       directory.  This script allows you to do things such as 
       "apachectl start" and "apachectl restart" from the command
       line.  [Marc Slemko]
    *) Modules and core routines are now put into libraries, which
       simplifies the link line tremendously (among other advantages).
       [Paul Sutton]
    *) Some of the MD5 names defined in Apache have been renamed to have
       an `ap_' prefix to avoid conflicts with routines supplied by
       external libraries.  [Ken Coar]
    *) Removal of mod_auth_msql.c from the distribution. There are many
       other options for databases today. Rather than offer one option,
       offer none at this time. mod_auth_msql and other SQL database
       authentication modules can be found at the Apache Module Registry. It would be nice to offer a generic
       mod_auth_sql option in the near future.
    *) PORT: BeOS support added [Alexei Kosut]
    *) Configure no longer accepts the -make option, since it creates
       Makefile on the fly based on Makefile.tmpl and Configuration.
    *) Apache now gracefully shuts down when it receives a SIGTERM, instead
       of forcibly killing off all its processes and exiting without
       cleaning up. [Alexei Kosut]
    *) API: A new field in the request_rec, r->mtime, has been added to
       avoid gratuitous parsing of date strings.  It is intended to hold
       the last-modified date of the resource (if applicable).  An
       update_mtime() routine has also been added to advance it if
       appropriate.  [Roy Fielding, Ken Coar]
    *) SECURITY: If a htaccess file can not be read due to bad permissions,
       deny access to the directory with a HTTP_FORBIDDEN.  The previous
       behavior was to ignore the htaccess file if it could not be read.
       This change may make some setups with unreadable htaccess files
       stop working.  [Marc Slemko] PR#817
    *) Add aplog_error() providing a mechanism to define levels of
       verbosity to the server error logging. This addition also provides
       the ability to log errors using syslogd. Error logging is configurable
       on a per-server basis using the LogLevel directive. Conversion
       of log_*() in progress. [Randy Terbush]
    *) Further enhance aplog_error() to not log filename, line number, and
       errno information when it isn't applicable. [Ken Coar, Dean Gaudet]
    *) WIN32: Canonicalise filenames under Win32. Short filenames are
       converted to long ones. Backslashes are converted to forward
       slashes. Case is converted to lower. Parts of URLs that do not
       correspond to files are left completely alone. [Ben Laurie]
    *) PORT: 2 new OSs added to the list of ports:
        Encore's UMAX V: Arieh Markel <>
        Acorn RISCiX: Stephen Borrill <>
    *) Add the server version (SERVER_VERSION macro) to the "server
       configured and running" entry in the error_log.  Also build an
       object file at link-time that contains the current time
       (SERVER_BUILT global const char[]), and include that in the
       message.  [Ken Coar]
    *) Set r->headers_out when sending responses from the proxy.
       This fixes things such as the logging of headers sent from
       the proxy.  [Marc Slemko] PR#659
    *) support/httpd_monitor is no longer distributed because the 
       scoreboard should not be file based if at all possible. Use
       mod_status to see current server snapshot.
    *) (set_file_slot): New function, allowing auth directives to be
       independent of the server root, so the server documents can be
       moved to a different directory or machine more easily.
       [David J. MacKenzie]
    *) If no TransferLog is given explicitly, decline
       to log.  This supports coexistence with other logging modules,
       such as the custom one that UUNET uses. [David J. MacKenzie]
    *) Check for titles in server-parsed HTML files.
       Ignore leading newlines and returns in titles.  The old behavior
       of replacing a newline after <title> with a space causes the
       title to be misaligned in the listing. [David J. MacKenzie]
    *) Change mod_cern_meta to be configurable on a per-directory basis.
       [David J. MacKenzie]
    *) Add 'Include' directive to allow inclusion of configuration
       files within configuration files. [Randy Terbush]
    *) Proxy errors on connect() are logged to the error_log (nothing
       new); now they include the IP address and port that failed
       (*that's* new).   [Ken Coar, Marc Slemko] PR#352
    *) Various architectures now define USE_MMAP_FILES which causes
       the server to use mmap() for static files.  There are two
       compile-time tunables MMAP_THRESHOLD (minimum number of bytes
       required to use mmap(), default is 0), and MMAP_SEGMENT_SIZE (maximum
       number of bytes written in one cycle from a single mmap()d object,
       default 32768).  [Dean Gaudet]
    *) API: Added post_read_request API phase which is run right after reading
       the request from a client, or right after an internal redirect.  It is
       useful for modules setting environment variables that depend only on
       the headers/contents of the request.  It does not run during subrequests
       because subrequests inherit pretty much everything from the main
       request. [Dean Gaudet]
    *) Added mod_unique_id which is used to generate a unique identifier for
       each hit, available in the environment variable UNIQUE_ID.
       [Dean Gaudet]
    *) init_modules is now called after the error logs have been opened.  This
       allows modules to emit information messages into the error logs.
       [Dean Gaudet]
    *) Fixed proxy-pass-through feature of mod_rewrite; Added error logging
       information for case where proxy module is not available. [Marc Slemko]
    *) PORT: Apache has need for mutexes to serialize its children around
       accept.  In prior versions either fcntl file locking or flock file
       locking were used.  The method is chosen by the definition of
       USE_xxx_SERIALIZED_ACCEPT in conf.h.  xxx is FCNTL for fcntl(),
       and FLOCK for flock().  New options have been added:
  	- SYSVSEM to use System V style semaphores
  	- PTHREAD to use POSIX threads (appears to work on Solaris only)
  	- USLOCK to use IRIX uslock
       Based on timing various techniques, the following changes were made
       to the defaults:
  	- Linux 2.x uses flock instead of fcntl
  	- Solaris 2.x uses pthreads
  	- IRIX uses SysV semaphores -- however multiprocessor IRIX boxes
  	    work far faster if you -DUSE_USLOCK_SERIALIZED_ACCEPT
       [Dean Gaudet, Pierre-Yves Kerembellec <>,
       Martijn Koster <>]
    *) PORT: The semantics of accept/select make it very desirable to use
       mutexes to serialize accept when multiple Listens are in use.  But
       in the case where only a single socket is open it is sometimes
       redundant to serialize accept().  Not all unixes do a good job with
       potentially dozens of children blocked on accept() on the same
       socket.  It's now possible to define SINGLE_LISTEN_UNSERIALIZED_ACCEPT and
       the server will avoid serialization when listening on only one socket,
       and use serialization when listening on multiple sockets.
       [Dean Gaudet] PR#467
    *) Configure changes: TestLib replaced by TestCompile, which has
       some additional capability (such as doing a sanity check of
       the compiler and flags selected); the version of Solaris is now
       available via the #define value of SOLARIS2; IRIX n32bit libs
       now supported and selectable by new Configuration Rule: IRIXN32;
       We no longer default to -O2 optimization.  [Jim Jagielski]
    *) Updated Configure: Configuration now uses AddModule to specify
       module source or binary file location, relative to src directory.
       Modules can be dropped into modules/extra, or in their own 
       directory, and modules can come with a Makefile or Configure can 
       create one.  Modules can add compiler or library information to 
       generated Makefiles. [Paul Sutton]
    *) Source core re-organisation: distributed modules are now in 
       modules/standard. All other source code is in main. OS-specific
       code is in os/{unix,emx,win32} directories. [Paul Sutton]
    *) mod_browser has been removed, since it's replaced by mod_setenvif.
       [Ken Coar]
    *) Fix another long-standing bug in sub_req_lookup_file where it would
       happily skip past access checks on subdirectories looked up with
       relative paths.  (It's used by mod_dir, mod_negotiation,
       and mod_include.) [Dean Gaudet]
    *) directory_walk optimization to reduce an O(N*M) loop to O(N+M) where
       N is the number of <Directory> sections, and M is the number of
       components in the filename of an object.
       To achieve this optimization the following config changes were made:
  	- Wildcards (* and ?, not the regex forms) in <Directory>s,
  	  <Files>s, and <Location>s now treat a slash as a special
  	  character.  For example "/home/*/public_html" previously would
  	  match "/home/a/andrew/public_html", now it only matches things
  	  like "/home/bob/public_html".  This mimics /bin/sh behaviour.
  	- It's possible now to use [] wildcarding in <Directory>, <Files>
  	  or <Location>.
  	- Regex <Directory>s are applied after all non-regex <Directory>s.
      [Dean Gaudet]
    *) Fix a bug introduced in 1.3a1 directory_walk regarding .htaccess files
       and corrupted paths.  [Dean Gaudet]
    *) Enhanced and cleaned up the URL rewriting engine of mod_rewrite:
       First the grouped parts of RewriteRule pattern matches (parenthesis!) can
       be accessed now via backreferences $1..$9 in RewriteConds test-against
       strings in addition to RewriteRules subst string. Second the grouped
       parts of RewriteCond pattern matches (parenthesis!) can be accessed now
       via backreferences %1..%9 both in following RewriteCond test-against
       strings and RewriteRules subst string. This provides maximum flexibility
       through the use of backreferences.
       Additionally the rewriting engine was cleaned up by putting common
       code to the new expand_backrefs_inbuffer() function. 
       [Ralf S. Engelschall]
    *) When merging the main server's <Directory> and <Location> sections into
       a vhost, put the main server's first and the vhost's second.  Otherwise
       the vhost can't override the main server.  [Dean Gaudet] PR#717
    *) The <Directory> code would merge and re-merge the same section after
       a match was found, possibly causing problems with some modules.
       [Dean Gaudet]
    *) ip-based vhosts are stored and queried using a hashing function, which
       has been shown to improve performance on servers with many ip-vhosts.
       Some other changes had to be made to accommodate this:
  	- the * address for vhosts now behaves like _default_
  	- the matching process now is:
  	    - match an ip-vhost directly via hash (possibly matches main
  	    - if that fails, just pretend it matched the main server
  	    - if so far only the main server has been matched, perform
  		name-based lookups (ServerName, ServerAlias, ServerPath)
  		*only on name-based vhosts*
  	    - if they fail, look for _default_ vhosts
       [Dean Gaudet, Dave Hankins <>]
    *) dbmmanage overhaul:
       - merge dbmmanage and functionality, remove 
       - tie() to AnyDBM_File which will use one of DB_File, NDBM_File or
         GDBM_File (-ldb, -lndbm, -lgdbm) (trying each in that order)
       - provide better seed for rand
       - prompt for password as per getpass(3) (turn off echo, read from
         /dev/tty, etc.)
       - use "newstyle" crypt based on $Config{osname} ($^O)
       - will not add a user if already in database, use new `update' command
       - added `check' command to check a users' password
       - added `import' command to convert existing password text-files or 
         dbm files exported with `view'
       - more descriptive usage, general cleanup, 'use strict' clean, etc.
       [Doug MacEachern]
    *) Added psocket() which is a pool form of socket(), various places within
       the proxy weren't properly blocking alarms while registering the cleanup
       for its sockets.  bclose() now uses pclose() and pclosesocket().  There
       was a bug where the client socket was being close()d twice due a still
       registered cleanup.  [Dean Gaudet]
    *) A few cleanups were made to reduce time(), getpid(), and signal() calls.
       [Dean Gaudet]
    *) PORT: AIX >= 4.2 requires -lm due to libc changes.
       [Jason Venner <>] PR#667
    *) Enable ``=""'' for RewriteCond directives to match against
       the empty string. This is the preferred way instead of ``^$''.
       [Ralf S. Engelschall]
    *) Fixed an infinite loop in mod_imap for references above the server root
       [Dean Gaudet] PR#748
    *) mod_proxy now has a ReceiveBufferSize directive, similar to
       SendBufferSize, so that the TCP window can be set appropriately
       for LFNs. [Phillip A. Prindeville]
    *) mod_browser has been replaced by the more general mod_setenvif
       (courtesy of Paul Sutton).  BrowserMatch* directives are still
       available, but are now joined by SetEnvIf*, UnSetEnvIf*, and
       UnSetEnvIfZero directives.  [Ken Coar]
    *) "HostnameLookups double" forces double-reverse DNS to succeed in
       order for remote_host to be set (for logging, or for the env var
       REMOTE_HOST).  The old define MAXIMUM_DNS has been deprecated.
       [Dean Gaudet]
    *) mod_access overhaul:
       - Now understands network/netmask syntax (i.e.
  	and cidr syntax (i.e.  PR#762
       - Critical path was sped up by pre-computing a few things at config
       - The undocumented syntax "allow user-agents" was removed,
  	the replacement is "allow from env=foobar" combined with mod_browser.
       - When used with hostnames it now forces a double-reverse lookup
  	no matter what the directory settings are.  This double-reverse
  	doesn't affect any of the other routines that use the remote
  	hostname.  In particular it's still passed to CGIs and the log
  	without the double-reverse check.  Related PR#860.
       [Dean Gaudet]
    *) When a large bwrite() occurs (larger than the internal buffer size),
       while there is already something in the buffer, apache will combine
       the large write and the buffer into a single writev().  (This is
       in anticipation of using mmap() for reading files.)
       [Dean Gaudet]
    *) In obscure cases where a partial socket write occurred while chunking,
       Apache would omit the chunk header/footer on the next block.  Cleaned
       up other bugs/inconsistencies in error conditions in buff.c.  Fixed
       a bug where a long pause in DNS lookups could cause the last packet
       of a response to be unduly delayed.  [Roy Fielding, Dean Gaudet]
    *) API: Added child_exit function to module structure.  This is called
       once per "heavy-weight process" just before a server child exit()'s 
       e.g. when max_requests_per_child is reached, etc.
       [Doug MacEachern, Dean Gaudet]
    *) mod_include cleanup showed that handle_else was being used to handle
       endif.  It didn't cause problems, but it was cleaned up too.
       [Howard Fear]
    *) mod_cern_meta would attempt to find meta files for the directory itself
       in some cases, but not in others.  It now avoids it in all cases.
       [Dean Gaudet]
    *) mod_mime_magic would core dump if there was a decompression error.
       [Martin Kraemer <>] PR#904
    *) PORT: some variants of DGUX require -lsocket -lnsl
       [Alexander L Jones <>] PR#732
    *) mod_autoindex now allows sorting of FancyIndexed directory listings
       by the various fields (name, size, et cetera), either in ascending
       or descending order.  Just click on the column header.  [Ken Coar]
    *) PORT: Various tweaks to eliminate pointer-int casting warnings on 64-bit
       CPUs like the Alpha.  Apache still stores ints in pointers, but that's
       the relatively safe direction.  [Dean Gaudet] PR#344
    *) PORT: QNX mmap() support for faster/more reliable scoreboard handling.
       [Igor N Kovalenko <>] PR#683
    *) child_main avoids an unneeded call to select() when there is only one
       listening socket.  [Dean Gaudet]
    *) In the event that the server is starved for idle servers it will
       spawn 1, then 2, then 4, ..., then 32 servers each second,
       doubling each second.  It'll also give a warning in the errorlog
       since the most common reason for this is a poor StartServers
       setting.  The define MAX_SPAWN_RATE can be used to raise/lower
       the maximum.  [Dean Gaudet]
    *) Apache now provides an effectively unbuffered connection for
       CGI scripts.  This means that data will be sent to the client
       as soon as the CGI pauses or stops output; previously, Apache would
       buffer the output up to a fixed buffer size before sending, which
       could result in the user viewing an empty page until the CGI finished
       or output a complete buffer.  It is no longer necessary to use an
       "nph-" CGI to get unbuffered output.  Given that most CGIs are written
       in a language that by default does buffering (e.g. perl) this
       shouldn't have a detrimental effect on performance.
       "nph-" CGIs, which formerly provided a direct socket to the client
       without any server post-processing, were not fully compatible with
       HTTP/1.1 or SSL support.  As such they would have had to implement
       the transport details, such as encryption or chunking, in order
       to work properly in certain situations.  Now, the only difference
       between nph and non-nph scripts is "non-parsed headers".
       [Dean Gaudet, Sameer Parekh, Roy Fielding]
    *) If a BUFF is switched from buffered to unbuffered reading the first
       bread() will return whatever remained in the buffer prior to the
       switch. [Dean Gaudet]
  Changes with Apache 1.3a1
    *) Added another Configure helper script: TestLib. It determines
       if a specified library exists.  [Jim Jagielski]
    *) PORT: Allow for use of n32bit libraries under IRIX 6.x
       [derived from patch from Jeff Hayes <>]
    *) PORT: Some architectures use size_t for various lengths in network
       functions such as accept(), and getsockname().  The definition
       NET_SIZE_T is used to control this. [Dean Gaudet]
    *) PORT: Linux: Attempt to detect glibc based systems and include crypt.h
       and -lcrypt.  Test for various db libraries (dbm, ndbm, db) when
       mod_auth_dbm or mod_auth_db are included.  [Dean Gaudet]
    *) PORT: QNX doesn't have initgroups() which support/suexec.c uses.
       [Igor N Kovalenko <>]
    *) "force-response-1.0" now only applies to requests which are HTTP/1.0 to
       begin with.  "nokeepalive" now works for HTTP/1.1 clients.  Added
       "downgrade-1.0" which causes Apache to pretend it received a 1.0.
       [Dean Gaudet] related PR#875
    *) API: Correct child_init() slot declaration from int to void, to
       match the init() declaration.  Update mod_example to use the new
       hook.  [Ken Coar]
    *) added transport handle slot (t_handle) to the BUFF structure
       [Doug MacEachern]
    *) get_client_block() returns wrong length if policy is
       [Kenichi Hori <>] PR#815
    *) Support the image map format of FrontPage.  For example:
          rect /url.hrm 10 20 30 40
       ["Chris O'Byrne" <>] PR#807
    *) PORT: -lresolv and -lsocks were in the wrong order for Solaris.
       ["Darren O'Shaughnessy" <>] PR#846
    *) AddModuleInfo directive for mod_info which allows you to annotate
       the output of mod_info.  ["Lou D. Langholtz" <>]
    *) Added NoProxy directive to avoid using ProxyRemote for selected
       addresses.  Added ProxyDomain directive to cause unqualified
       names to be qualified by redirection.
       [Martin Kraemer <>]
    *) Support Proxy Authentication, and don't pass the Proxy-Authorize
       header to the remote host in the proxy. [Sameer Parekh and
    *) Upgraded mod_rewrite from 3.0.6+ to latest officially available version
       3.0.9. This upgrade includes: fixed deadlooping on rewriting to same
       URLs, fixed rewritelog(), fixed forced response code handling on
       redirects from within .htaccess files, disabled pipe locking under
       braindead SunOS 4.1.x, allow env variables to be set even on rules with
       no substitution, bugfixed situations where HostnameLookups is off, made
       mod_rewrite more thread-safe for NT port and fixed problem when creating
       an empty query string via "xxx?".
           This update also removes the copyright of Ralf S. Engelschall,
       i.e. now mod_rewrite no longer has a shared copyright. Instead is is
       exclusively copyrighted by the Apache Group now. This happened because
       the author now has gifted mod_rewrite exclusively to the Apache Group and 
       no longer maintains an external version.
       [Ralf S. Engelschall]
    *) API: Added child_init function to module structure.  This is called
       once per "heavy-weight process" before any requests are handled.
       See http_config.h for more details.  [Dean Gaudet]
    *) Anonymous_LogEmail was logging on each subrequest.
       [Dean Gaudet] PR#421, 868
    *) API: Added is_initial_req() which tests if the request being
       processed is the initial request, or a subrequest.
       [Doug MacEachern]
    *) Extended SSI (mod_include) now handles additional relops for
       string comparisons (<, >, <=, and >=).  [Bruno Wolff III] PR#41
    *) Configure fixed to correctly propagate user-selected options and
       settings (such as CC and OPTIM) to Makefiles other than
       src/Makefile (notably support/Makefile).  [Ken Coar] PR#666, #834
    *) IndexOptions SuppressHTMLPreamble now causes the actual HTML of
       directory indices to start with the contents of the HeaderName file
       if there is one.  If there isn't one, the behaviour is unchanged.
       [Ken Coar, Roy Fielding, Andrey A. Chernov]
    *) WIN32: Modules can now be dynamically loaded DLLs using the
       LoadModule/LoadFile directives. Note that module DLLs must be
       compiled with the multithreaded DLL version of the runtime library.
       [Alexei Kosut and Ben Laurie]
    *) Automatic indexing removed from mod_dir and placed into mod_autoindex.
       This allows the admin to completely remove automatic indexing
       from the server, while still supporting the basic functions of
       trailing-slash redirects and DirectoryIndex files.  Note that if
       you're carrying over an old Configuration file and you use directory
       indexing then you'll want to add:
       Module autoindex_module    mod_autoindex.o
       before mod_dir in your Configuration.  [Dean Gaudet]
    *) popendir/pclosedir created to properly protect directory scanning.
       [Dean Gaudet] PR#525
    *) AliasMatch, ScriptAliasMatch and RedirectMatch directives added,
       giving regex support to mod_alias. <DirectoryMatch>, <LocationMatch>
       and <FilesMatch> sections added to succeed <DirectoryMatch ~>, etc...
       [Alexei Kosut]
    *) The AccessFileName directive can now take more than one filename.
       ["Lou D. Langholtz" <>]
    *) The new mod_mime_magic can be used to "magically" determine the type
       of a file if the extension is unknown.  Based on the unix file(1)
       command.  [Ian Kluft <>]
    *) We now determine and display the time spent processing a
       request if desired.  [Jim Jagielski]
    *) mod_status: PID field of "dead" child slots no longer displays
       main httpd process's PID.  [Jim Jagielski]
    *) Makefile.nt added - to build all the bits from the command line:
          nmake -f Makefile.nt
           Doesn't yet work properly. [Ben Laurie]
    *) Default text of 404 error is now "Not Found" rather than the
       potentially misleading "File Not Found".  [Ken Coar]
    *) CONFIG: "HostnameLookups" now defaults to off because it is far better
       for the net if we require people that actually need this data to
       enable it.  [Linus Torvalds]
    *) directory_walk() is an expensive function, keep a little more state to
       avoid needless string counting.  Add two new functions make_dirstr_parent
       and make_dirstr_prefix which replace all existing uses of make_dirstr.
       The new functions are a little less general than make_dirstr, but
       work more efficiently (less memory, less string counting).
       [Dean Gaudet]
    *) EXTRA_LFLAGS was changed to EXTRA_LDFLAGS (and LFLAGS was changed
       to LDFLAGS) to avoid complications with lex rules in make files.
       [Dean Gaudet] PR#372
    *) run_method optimized to avoid needless scanning over NULLs in the
       module list.  [Dean Gaudet]
    *) Revamp of (unix) scoreboard management code such that it avoids
       unnecessary traversals of the scoreboard on each hit.  This is
       particularly important for high volume sites with a large
       HARD_SERVER_LIMIT.  Some of the previous operations were O(n^2),
       and are now O(n).  See also SCOREBOARD_MAINTENANCE_INTERVAL in
       httpd.h. [Dean Gaudet]
    *) In configurations using multiple Listen statements it was possible for
       busy sockets to starve other sockets of service.  [Dean Gaudet]
    *) Added hook so standalone_main can be replaced at compile time
       (define STANDALONE_MAIN)
       [Doug MacEachern]
    *) Lowest-level read/write functions in buff.c will be replaced with
       the SFIO library calls sfread/sfwrite if B_SFIO is defined at
       compile time.  The default sfio discipline will behave as apache
       would without sfio compiled in.
       [Doug MacEachern]
    *) Enhance UserDir directive (mod_userdir) to accept a list of
       usernames for the 'disable' keyword, and add 'enable user...' to
       selectively *en*able userdirs if they're globally disabled.
       [Ken Coar]
    *) If NETSCAPE_DBM_COMPAT is defined in EXTRA_CFLAGS then Apache
       will work with Netscape dbm files.  (dbmmanage will probably not
       work however.) [Alexander Spohr <>] PR#444
    *) Add a ListenBacklog directive to control the backlog parameter
       passed to listen().  Also change the default to 511 from 512.
       [Marc Slemko]
    *) API: A new handler response DONE which informs apache that the
       request has been handled and it can finish off quickly, similar to
       how it handles errors. [Rob Hartill]
    *) Turn off chunked encoding after sending terminating chunk/footer
       so that we can't do it twice by accident. [Roy Fielding]
    *) mod_expire also issues Cache-Control: max-age headers.
       [Rob Hartill]
    *) API: Added kill_only_once option for free_proc_chain so that it won't
       aggressively try to kill off specific children.  For fastcgi.
       [Stanley Gambarin <>]
    *) mod_auth deals with extra ':' delimited fields.  [Marc Slemko]
    *) Added IconHeight and IconWidth to mod_dir's IndexOptions directive.
       When used together, these cause mod_dir to emit HEIGHT and WIDTH
       attributes in the FancyIndexing IMG tags.  [Ken Coar]
    *) PORT: Sequent and SONY NEWS-OS support added.  [Jim Jagielski]
    *) PORT: Added Windows NT support
       [Ben Laurie and Ambarish Malpani <>]
  Changes with Apache 1.2.6
    *) mod_include when using XBitHack Full would send ETags in addition to
       sending Last-Modifieds.  This is incorrect HTTP/1.1 behaviour.
       [Dean Gaudet] PR#1133
    *) SECURITY: When a client connects to a particular port/addr, and
       gives a Host: header ensure that the virtual host requested can
       actually be reached via that port/addr.  [Ed Korthof <>]
    *) Support virtual hosts with wildcard port and/or multiple ports
       properly.  [Ed Korthof <>]
    *) Fixed some case-sensitivity issues according to RFC2068.
       [Dean Gaudet]
    *) Set r->allowed properly in mod_asis.c, mod_dir.c, mod_info.c,
       and mod_include.c.  [Dean Gaudet]
    *) Variable 'cwd' was being used pointlessly before being set.
       [Ken Coar] PR#1738
    *) SIGURG doesn't exist on all platforms.
       [Mark Andrew Heinrich <heinrich@tinderbox.Stanford.EDU>]
    *) When an error occurs during a POST, or other operation with a
       request body, the body has to be read from the net before allowing
       a keepalive session to continue.  [Roy Fielding] PR#1399
    *) When an error occurs in fcntl() locking suggest the user look up
       the docs for LockFile.  [Dean Gaudet]
    *) table_set() and table_unset() did not deal correctly with
       multiple occurrences of the same key. [Stephen Scheck
       <>, Ben Laurie] PR#1604
    *) send_fd_length() did not calculate total_bytes_sent properly in error
       cases.  [Ben Reser <>] PR#1366
    *) r->connection->user was allocated in the wrong pool causing corruption
       in some cases when used with mod_cern_meta.  [Dean Gaudet] PR#1500
    *) mod_proxy was sending HTTP/1.1 responses to ftp requests by mistake.
       Also removed the auto-generated link to that was the
       source of so many misdirected bug reports.  [Roy Fielding, Marc Slemko]
    *) Multiple "close" tokens may have been set in the "Connection"
       header, not an error, but a waste.
       [] PR#1683
    *) "basic" and "digest" auth tokens should be tested case-insensitive.
       [] PR#1599, PR#1666
    *) It appears the "257th byte" bug (see
       htdocs/manual/misc/known_client_problems.html#257th-byte) can happen
       at the 256th byte as well.  Fixed.  [Dean Gaudet]
    *) mod_rewrite would not handle %3f properly in some situations.
       [Ralf Engelschall]
    *) Apache could generate improperly chunked HTTP/1.1 responses when
       the bputc() or rputc() functions were used by modules (such as
       mod_include).  [Dean Gaudet]
    *) #ifdef wrap a few #defines in httpd.h to make life easier on
       some ports.  [Ralf Engelschall]
    *) Fix MPE compilation error in mod_usertrack.c.  [Mark Bixby]
    *) Quote CC='$(CC)' to improve recurse make calls.  [Martin Kraemer]
    *) Avoid B_ERROR redeclaration on sysvr4 systems.  [Martin Kraemer]
  Changes with Apache 1.2.5
    *) SECURITY: Fix a possible buffer overflow in logresolve.  This is
       only an issue on systems without a MAXDNAME define or where 
       the resolver returns domain names longer than MAXDNAME.  [Marc Slemko]
    *) Fix an improper length in an ap_snprintf call in proxy_date_canon().
       [Marc Slemko]
    *) Fix core dump in the ftp proxy when reading incorrectly formatted
       directory listings.  [Marc Slemko]
    *) SECURITY: Fix possible minor buffer overflow in the proxy cache.
       [Marc Slemko]
    *) SECURITY: Eliminate possible buffer overflow in cfg_getline, which
       is used to read various types of files such as htaccess and 
       htpasswd files.  [Marc Slemko]
    *) SECURITY: Ensure that the buffer returned by ht_time is always
       properly null terminated.  [Marc Slemko]
    *) SECURITY: General mod_include cleanup, including fixing several
       possible buffer overflows and a possible infinite loop.  This cleanup
       was done against 1.3 code and then backported to 1.2, the result
       is a large difference (due to indentation cleanup in 1.3 code).
       Users interested in seeing a smaller set of relevant differences
       should consider comparing against src/modules/standard/mod_include.c
       from the 1.3b3 release.  Non-indentation changes to mod_include
       between 1.2 and 1.3 were minimal.  [Dean Gaudet, Marc Slemko]
    *) SECURITY: Numerous changes to mod_imap in a general cleanup
       including fixing a possible buffer overflow.  This cleanup also
       was done with 1.3 code as a basis, see the the previous note
       about mod_include.  [Dean Gaudet]
    *) SECURITY: If a htaccess file can not be read due to bad 
       permissions, deny access to the directory with a HTTP_FORBIDDEN.  
       The previous behavior was to ignore the htaccess file if it could not
       be read.  This change may make some setups with unreadable
       htaccess files stop working.  [Marc Slemko]  PR#817
    *) SECURITY: no2slash() was O(n^2) in the length of the input.  
       Make it O(n).  This inefficiency could be used to mount a denial 
       of service attack against the Apache server.  Thanks to 
       Michal Zalewski <> for reporting
       this.  [Dean Gaudet]
    *) mod_include used uninitialized data for some uses of && and ||.
       [Brian Slesinsky <>] PR#1139
    *) mod_imap should decline all non-GET methods.
       [Jay Bloodworth <>]
    *) suexec.c wouldn't build without -DLOG_EXEC. [Jason A. Dour]
    *) mod_userdir was modifying r->finfo in cases where it wasn't setting
       r->filename.  Since those two are meant to be in sync with each other
       this is a bug.  ["Paul B. Henson" <>]
    *) mod_include did not properly handle all possible redirects from sub-
       requests.  [Ken Coar]
    *) Inetd mode (which is buggy) uses timeouts without having setup the
       jmpbuffer. [Dean Gaudet] PR#1064
    *) Work around problem under Linux where a child will start looping
       reporting a select error over and over.
       [Rick Franchuk <>] PR#1107
  Changes with Apache 1.2.4
    *) The ProxyRemote change in 1.2.3 introduced a bug resulting in the proxy
       always making requests with the full-URI instead of just the URI path.
       [Marc Slemko, Roy Fielding]
    *) Add -lm for AIX versions >= 4.2 to allow Apache to link properly
       on this platform.  [Marc Slemko]
  Changes with Apache 1.2.3
    *) The request to a remote proxy was mangled if it was generated as the
       result of a ProxyPass directive. URL schemes other than http:// were not
       supported when ProxyRemote was used. [Lars Eilebrecht] PR#260, PR#656,
       PR#699, PR#713, PR#812
    *) Fixed proxy-pass-through feature of mod_rewrite; Added error logging
       information for case where proxy module is not available. [Marc Slemko]
    *) Force proxy to always respond as HTTP/1.0, which it was failing to
       do for errors and cached responses.  [Roy Fielding]
    *) PORT: Improved support for ConvexOS 11.  [Jeff Venters]
  Changes with Apache 1.2.2 [not released]
    *) Fixed another long-standing bug in sub_req_lookup_file where it would
       happily skip past access checks on subdirectories looked up with relative
       paths.  (It's used by mod_dir, mod_negotiation, and mod_include.)
       [Dean Gaudet]
    *) Add lockfile name to error message printed out when
       [Marc Slemko]
    *) Enhanced the chunking and error handling inside the buffer functions.
       [Dean Gaudet, Roy Fielding]
    *) When merging the main server's <Directory> and <Location> sections into
       a vhost, put the main server's first and the vhost's second.  Otherwise
       the vhost can't override the main server.  [Dean Gaudet] PR#717
    *) The <Directory> code would merge and re-merge the same section after
       a match was found, possibly causing problems with some modules.
       [Dean Gaudet]
    *) Fixed an infinite loop in mod_imap for references above the server root.
       [Dean Gaudet] PR#748
    *) mod_include cleanup showed that handle_else was being used to handle
       endif.  It didn't cause problems, but it was cleaned up too.
       [Howard Fear]
    *) Last official synchronization of mod_rewrite with author version (because
       mod_rewrite is now directly developed by the author at the Apache Group):
       o added diff between mod_rewrite 3.0.6+ and 3.0.9
         minus WIN32/NT stuff, but plus copyright removement.
         In detail:
         - workaround for detecting infinite rewriting loops
         - fixed setting of env vars when "-" is used as subst string
         - fixed forced response code on redirects (PR#777)
         - fixed cases where r->args is ""
         - kludge to disable locking on pipes under braindead SunOS
         - fix for rewritelog in cases where remote hostname is unknown
         - fixed totally damaged request_rec walk-back loop
       o remove static from local data and add static to global ones.
       o replaced ugly proxy finding stuff by simple
         find_linked_module("mod_proxy") call.
       o added missing negation char on rewritelog()
       o fixed a few comment typos
       [Ralf S. Engelschall]
    *) Anonymous_LogEmail was logging on each subrequest.
       [Dean Gaudet] PR#421, PR#868
    *) "force-response-1.0" now only applies to requests which are HTTP/1.0 to
       begin with.  "nokeepalive" now works for HTTP/1.1 clients.  Added
       "downgrade-1.0" which causes Apache to pretend it received a 1.0.
       Additionally mod_browser now triggers during translate_name to workaround
       a deficiency in the header_parse phase.
       [Dean Gaudet] PR#875
    *) get_client_block() returns wrong length if policy is 
       [Kenichi Hori <>] PR#815
    *) Properly treat <files> container like other containers in mod_info.
       [Marc Slemko] PR#848
    *) The proxy didn't treat the "Host:" keyword of the host header as case-
       insensitive.  The proxy would corrupt the first line of a response from
       an HTTP/0.9 server.  [Kenichi Hori <>] PR#813,814
    *) mod_include would log some bogus values occasionally.
       [Skip Montanaro <>, Marc Slemko] PR#797
    *) PORT: The slack fd changes in 1.2.1 introduced a problem with SIGHUP
       under Solaris 2.x (up through 2.5.1).  It has been fixed.
       [Dean Gaudet] PR#832
    *) API: In HTTP/1.1, whether or not a request message contains a body
       is independent of the request method and based solely on the presence
       of a Content-Length or Transfer-Encoding.  Therefore, our default
       handlers need to be prepared to read a body even if they don't know
       what to do with it; otherwise, the body would be mistaken for the
       next request on a persistent connection.  discard_request_body()
       has been added to take care of that.  [Roy Fielding] PR#378
    *) API: Symbol APACHE_RELEASE provides a numeric form of the Apache
       release version number, such that it always increases along the
       same lines as our source code branching.  [Roy Fielding]
    *) Minor oversight on multiple variants fixed.  [Paul Sutton] PR#94
  Changes with Apache 1.2.1
    *) SECURITY: Don't serve file system objects unless they are plain files,
       symlinks, or directories.  This prevents local users from using pipes
       or named sockets to invoke programs for an extremely crude form of
       CGI.  [Dean Gaudet]
    *) SECURITY: HeaderName and ReadmeName were settable in .htaccess and
       could contain "../" allowing a local user to "publish" any file on
       the system.  No slashes are allowed now.  [Dean Gaudet]
    *) SECURITY: It was possible to violate the symlink Options using mod_dir
       (headers, readmes, titles), mod_negotiation (type maps), or
       mod_cern_meta (meta files).  [Dean Gaudet]
    *) SECURITY: Apache will refuse to run as "User root" unless
       BIG_SECURITY_HOLE is defined at compile time.  [Dean Gaudet]
    *) CONFIG: If a symlink pointed to a directory then it would be disallowed
       if it contained a .htaccess disallowing symlinks.  This is contrary
       to the rule that symlink permissions are tested with the symlink
       options of the parent directory.  [Dean Gaudet] PR#353
    *) CONFIG: The LockFile directive can be used to place the serializing
       lockfile in any location.  It previously defaulted to /usr/tmp/htlock.
       [Somehow it took four of us: Randy Terbush, Jim Jagielski, Dean Gaudet,
       Marc Slemko]
    *) Request processing now retains state of whether or not the request
       body has been read, so that internal redirects and subrequests will
       not try to read it twice (and block). [Roy Fielding]
    *) Add a placeholder in modules/Makefile to avoid errors with certain
       makes. [Marc Slemko]
    *) QUERY_STRING was unescaped in mod_include, it shouldn't be.
       [Dean Gaudet] PR#644
    *) mod_include was not properly changing the current directory.
       [Marc Slemko] PR#742
    *) Attempt to work around problems with third party libraries that do not
       handle high numbered descriptors (examples include bind, and
       solaris libc).  On all systems apache attempts to keep all permanent
       descriptors above 15 (called the low slack line).  Solaris users
       can also benefit from adding -DHIGH_SLACK_LINE=256 to EXTRA_CFLAGS
       which keeps all non-FILE * descriptors above 255.  On all systems
       this should make supporting large numbers of vhosts with many open
       log files more feasible.  If this causes trouble please report it,
       you can disable this workaround by adding -DNO_SLACK to EXTRA_CFLAGS.
       [Dean Gaudet] various PRs
    *) Related to the last entry, network sockets are now opened before
       log files are opened.  The only known case where this can cause
       problems is under Solaris with many virtualhosts and many Listen
       directives.  But using -DHIGH_SLACK_LINE=256 described above will
       work around this problem.  [Dean Gaudet]
    *) USE_FLOCK_SERIALIZED_ACCEPT is now default for FreeBSD, A/UX, and
       SunOS 4.
    *) Improved unix error response logging.  [Marc Slemko]
    *) Update mod_rewrite from 3.0.5 to 3.0.6.  New ruleflag
       QSA=query_string_append.  Also fixed a nasty bug in per-dir context:
       when a URL http://... was used in conjunction with a special
       redirect flag, e.g. R=permanent, the permanent status was lost.
       [Ronald Tschalaer <>, Ralf S. Engelschall]
    *) If an object has multiple variants that are otherwise equal Apache
       would prefer the last listed variant rather than the first.
       [Paul Sutton] PR#94
    *) "make clean" at the top level now removes *.o.  [Dean Gaudet] PR#752
    *) mod_status dumps core in inetd mode.  [Marc Slemko and Roy Fielding]
    *) pregsub had an off-by-1 in its error checking code. [Alexei Kosut]
    *) PORT: fix rlim_t problems with AIX 4.2. [Marc Slemko] PR#333
    *) PORT: Update UnixWare support for 2.1.2.
       [Lawrence Rosenman <>] PR#511
    *) PORT: NonStop-UX [Joachim Schmitz <>] PR#327
    *) PORT: Update ConvexOS support for 11.5.
       [David DeSimone <>] PR#399
    *) PORT: Support for DEC cc compiler under ULTRIX.
       ["P. Alejandro Lopez-Valencia" <>] PR#388
    *) PORT: Support for Maxion/OS SVR4.2 Real Time Unix. [no name given] PR#383
    *) PORT: Workaround for AIX 3.x compiler bug in http_bprintf.c.  
       [Marc Slemko] PR#725
    *) PORT: fix problem compiling http_bprintf.c with gcc under SCO
       [Marc Slemko] PR#695
  Changes with Apache 1.2
  Changes with Apache 1.2b11
    *) Fixed open timestamp fd in proxy_cache.c [Chuck Murcko]
    *) Added undocumented perl SSI mechanism for -DUSE_PERL_SSI and mod_perl.
       [Doug MacEachern, Rob Hartill]
    *) Proxy needs to use hard_timeout instead of soft_timeout when it is
       reading from one buffer and writing to another, at least until it has
       a custom timeout handler.  [Roy Fielding and Petr Lampa]
    *) Fixed problem on IRIX with servers hanging in IdentityCheck,
       apparently due to a mismatch between sigaction and setjmp.
       [Roy Fielding] PR#502
    *) Log correct status code if we timeout before receiving a request (408)
       or if we received a request-line that was too long to process (414).
       [Ed Korthof and Roy Fielding] PR#601
    *) Virtual hosts with the same ServerName, but on different ports, were
       not being selected properly.  [Ed Korthof]
    *) Added code to return the requested IP address from proxy_host2addr()
       if gethostbyaddr() fails due to reverse DNS lookup problems. Original
       change submitted by Jozsef Hollosi <>.
       [Chuck Murcko] PR#614
    *) If multiple requests on a single connection are used to retrieve
       data from different virtual hosts, the virtual host list would be
       scanned starting with the most recently used VH instead of the first,
       causing most virtual hosts to be ignored.
       [Paul Sutton and Martin Mares] PR#610
    *) The OS/2 handling of process group was broken by a porting patch for
       MPE, so restored prior code for OS/2.  [Roy Fielding and Garey Smiley]
    *) Inherit virtual server port from main server if none (or "*") is
       given for VirtualHost.  [Dean Gaudet] PR#576
    *) If the lookup for a DirectoryIndex name with content negotiation
       has found matching variants, but none are acceptable, return the
       negotiation result if there are no more DirectoryIndex names to lookup.
       [Petr Lampa and Roy Fielding]
    *) If a soft_timeout occurs after keepalive is set, then the main child
       loop would try to read another request even though the connection
       has been aborted.  [Roy Fielding]
    *) Configure changes: Allow for whitespace at the start of a
       Module declaration. Also, be more understanding about the
       CC=/OPTIM= format in Configuration. Finally, fix compiler
       flags if using HP-UX's cc compiler. [Jim Jagielski]
    *) Subrequests and internal redirects now inherit the_request from the
       original request-line. [Roy Fielding]
    *) Test for error conditions before creating output header fields, since
       we don't want the error message to include those fields.  Likewise,
       reset the content_language(s) and content_encoding of the response
       before generating or redirecting to an error message, since the new
       message will have its own Content-* definitions. [Dean Gaudet]
    *) Restored the semantics of headers_out (headers sent only with 200..299
       and 304 responses) and err_headers_out (headers sent with all responses).
       Avoid the overhead of copying tables if err_headers_out is empty
       (the usual case).  [Roy Fielding]
    *) Fixed a couple places where a check for the default Content-Type was
       not properly checking both the value configured by the DefaultType
       directive and the DEFAULT_TYPE symbol in httpd.h.  Changed the value
       of DEFAULT_TYPE to match the documented default (text/plain).
       [Dean Gaudet] PR#506
    *) Escape the HTML-sensitive characters in the Request-URI that is
       output for each child by mod_status. [Dean Gaudet and Ken Coar] PR#501
    *) Properly initialize the flock structures used by the mutex locking
       around accept() when USE_FCNTL_SERIALIZED_ACCEPT is defined.
       [Marc Slemko]
    *) The method for determining PATH_INFO has been restored to the pre-1.2b
       (and NCSA httpd) definition wherein it was the extra path info beyond
       the CGI script filename.  The environment variable FILEPATH_INFO has
       been removed, and instead we supply the original REQUEST_URI to any
       script that wants to be Apache-specific and needs the real URI path.
       This solves a problem with existing scripts that use extra path info
       in the ScriptAlias directive to pass options to the CGI script.
       [Roy Fielding]
    *) The _default_ change in 1.2b10 will change the behaviour on configs
       that use multiple Listen statements for listening on multiple ports.
       But that change is necessary to make _default_ consistent with other
       forms of <VirtualHost>.  It requires such configs to be modified
       to use <VirtualHost _default_:*>.  The documentation has been
       updated.  [Dean Gaudet] PR#530
    *) If an ErrorDocument CGI script is used to respond to an error
       generated by another CGI script which has already read the message
       body of the request, the server would block trying to read the
       message body again.  [Rob Hartill]
    *) signal() replacement conflicted with a define on QNX (and potentially
       other platforms). Fixed. [Ben Laurie] PR#512
  Changes with Apache 1.2b10
       to be configured via -D in Configuration.  [Dean Gaudet] PR#449
    *) <VirtualHost _default_:portnum> didn't work properly.  [Dean Gaudet]
    *) Added prototype for mktemp() for SUNOS4 [Marc Slemko]
    *) In mod_proxy.c, check return values for proxy_host2addr() when reading
       config, in case the hostent struct returned is trash.
       [Chuck Murcko] PR #491
    *) Fixed the fix in 1.2b9 for parsing URL query info into args for CGI
       scripts.  [Dean Gaudet, Roy Fielding, Marc Slemko]
  Changes with Apache 1.2b9  [never announced]
    *) Reset the MODULE_MAGIC_NUMBER to account for the unsigned port
       changes and in anticipation of 1.2 final release.  [Roy Fielding]
    *) Fix problem with scripts not receiving a SIGPIPE when client drops
       the connection (e.g., when user presses Stop).  Apache will now stop
       trying to send a message body immediately after an error from write.
       [Roy Fielding and Nathan Kurz] PR#335
    *) Rearrange Configuration.tmpl so that mod_rewrite has higher priority
       than mod_alias, and mod_alias has higher priority than mod_proxy;
       rearranged other modules to enhance understanding of their purpose
       and relative order (and maybe even reduce some overhead).
       [Roy Fielding and Sameer Parekh]
    *) Fix graceful restart.  Eliminate many signal-related race
       conditions in both forms of restart, and in SIGTERM.  See
       htdocs/manual/stopping.html for details on stopping and
       restarting the parent.  [Dean Gaudet]
    *) Fix memory leaks in mod_rewrite, mod_browser, mod_include.  Tune
       memory allocator to avoid a behaviour that required extra blocks to
       be allocated.  [Dean Gaudet]
    *) Allow suexec to access files relative to current directory but not
       above.  (Excluding leading / or any .. directory.)  [Ken Coar]
       PR#269, 319, 395
    *) Fix suexec segfault when group doesn't exist. [Gregory Neil Shapiro]
       PR#367, 368, 354, 453
    *) Fix the above fix: if suexec is enabled, avoid destroying r->url
       while obtaining the /~user and save the username in a separate data
       area so that it won't be overwritten by the call to getgrgid(), and
       fix some misuse of the pool string allocation functions.  Also fixes
       a general problem with parsing URL query info into args for CGI scripts.
       [Roy Fielding] PR#339, 367, 354, 453
    *) Fix IRIX warning about bzero undefined. [Marc Slemko]
    *) Fix problem with <Directory proxy:...>. [Martin Kraemer] PR#271
    *) Corrected spelling of "authoritative".  AuthDBAuthoratative became
       AuthDBAuthoritative. [Marc Slemko] PR#420
    *) MaxClients should be at least 1. [Lars Eilebrecht] PR#375
    *) The default handler now logs invalid methods or URIs (i.e. PUT on an
       object that can't be PUT, or FOOBAR for some method FOOBAR that
       apache doesn't know about at all).  Log 404s that occur in mod_include.
       [Paul Sutton, John Van Essen]
    *) If a soft timeout (or lingerout) occurs while trying to flush a
       buffer or write inside buff.c or fread'ing from a CGI's output,
       then the timeout would be ignored. [Roy Fielding] PR#373
    *) Work around a bug in Netscape Navigator versions 2.x, 3.x and 4.0b2's
       parsing of headers.  If the terminating empty-line CRLF occurs starting
       at the 256th or 257th byte of output, then Navigator will think a normal
       image is invalid.  We are guessing that this is because their initial
       read of a new request uses a 256 byte buffer. We check the bytes written
       so far and, if we are about to tickle the bug, we instead insert a
       padding header of eminent bogosity. [Roy Fielding and Dean Gaudet] PR#232
    *) Fixed SIGSEGV problem when a DirectoryIndex file is also the source
       of an external redirection.  [Roy Fielding and Paul Sutton]
    *) Configure would create a broken Makefile if the configuration file
       contained a commented-out Rule.  [Roy Fielding]
    *) Promote per_dir_config and subprocess_env from the subrequest to the
       main request in mod_negotiation.  In particular this fixes a bug
       where <Files> sections wouldn't properly apply to negotiated content.
       [Dean Gaudet]
    *) Fix a potential deadlock in mod_cgi script_err handling.
       [Ralf S. Engelschall]
    *) rotatelogs zero-pads the logfile names to improve alphabetic sorting.
       [Mitchell Blank Jr]
    *) Updated mod_rewrite to 3.0.4: Fixes HTTP redirects from within
       .htaccess files because the RewriteBase was not replaced correctly.
       Updated mod_rewrite to 3.0.5: Fixes problem with rewriting inside
       <Directory> sections missing a trailing /.  [Ralf S. Engelschall]
    *) Clean up Linux settings in conf.h by detecting 2.x versus 1.x.  For
       1.x the settings are those of pre-1.2b8.  For 2.x we include
       USE_SHMGET_SCOREBOARD (scoreboard in shared memory rather than file) and
       HAVE_SYS_RESOURCE_H (enable the RLimit commands).
       [Dean Gaudet] PR#336, PR#340
    *) Redirect did not preserve ?query_strings when present in the client's
       request.  [Dean Gaudet]
    *) Configure was finding non-modules on EXTRA_LIBS. [Frank Cringle] PR#380
    *) Use /bin/sh5 on ULTRIX.  [P. Alejandro Lopez-Valencia] PR#369
    *) Add UnixWare compile/install instructions.  [Chuck Murcko]
    *) Add mod_example (illustration of API techniques).  [Ken Coar]
    *) Add macro for memmove to conf.h for SUNOS4. [Marc Slemko]
    *) Improve handling of directories when filenames have spaces in them.
       [Chuck Murcko]
    *) For hosts with multiple IP addresses, try all additional addresses if
       necessary to get a connect. Fail only if hostent address list is
       exhausted. [Chuck Murcko]
    *) More signed/unsigned port fixes.  [Dean Gaudet]
    *) HARD_SERVER_LIMIT can be defined in the Configuration file now.
       [Dean Gaudet]
  Changes with Apache 1.2b8
    *) suexec.c doesn't close the log file, allowing CGIs to continue writing
       to it.  [Marc Slemko]
    *) The addition of <Location> and <File> directives made the
       sub_req_lookup_simple() function bogus, so we now handle
       the special cases directly.  [Dean Gaudet]
    *) We now try to log where the server is dumping core when a fatal
       signal is received.  [Ken Coar]
    *) Improved lingering_close by adding a special timeout, removing the
       spurious log messages, removing the nonblocking settings (they
       are not needed with the better timeout), and adding commentary
       about the NO_LINGCLOSE and USE_SO_LINGER issues.  NO_LINGCLOSE is
       now the default for SunOS4, UnixWare, NeXT, and IRIX.  [Roy Fielding]
    *) Send error messages about setsockopt failures to the server error
       log instead of stderr.  [Roy Fielding]
    *) Fix loopholes in proxy cache expiry vis a vis alarms. [Brian Moore]
    *) Stopgap solution for CGI 3-second delay with server-side includes: if
       processing a subrequest, allocate memory from r->main->pool instead
       of r->pool so that we can avoid waiting for free_proc_chain to cleanup
       in the middle of an SSI request.  [Dean Gaudet] PR #122
    *) Fixed status of response when POST is received for a nonexistent URL
       (was sending 405, now 404) and when any method is sent with a
       full-URI that doesn't match the server and the server is not acting
       as a proxy (was sending 501, now 403).  [Roy Fielding]
    *) Host port changed to unsigned short. [Ken Coar] PR #276
    *) Fix typo in command definition of AuthAuthoritative. [Ken Coar] PR #246
    *) Defined USE_SHMGET_SCOREBOARD for shared memory on Linux.  [Dean Gaudet]
    *) Report extra info from errno with many errors that cause httpd to exit.
       spawn_child, popenf, and pclosef now have valid errno returns in the
       event of an error.  Correct problems where errno was stomped on
       before being reported.  [Dean Gaudet]
    *) In the proxy, if the cache filesystem was full, garbage_coll() was
       never called, and thus the filesystem would remain full indefinitely.
       We now also remove incomplete cache files left if the origin server
       didn't send a Content-Length header and either the client has aborted
       transfer or bwrite() to client has failed. [Petr Lampa]
    *) Fixed the handling of module and script-added header fields.
       Improved the interface for sending header fields and reduced
       the duplication of code between sending okay responses and errors.
       We now always send both headers_out and err_headers_out, and
       ensure that the server-reserved fields are not being overridden,
       while not overriding those that are not reserved.  [Roy Fielding]
    *) Moved transparent content negotiation fields to err_headers_out
       to reflect above changes.  [Petr Lampa]
    *) Fixed the determination of whether or not we should make the
       connection persistent for all of the cases where some other part
       of the server has already indicated that we should not.  Also
       improved the ordering of the test so that chunked encoding will
       be set whenever it is desired instead of only when KeepAlive
       is enabled. Added persistent connection capability for most error
       responses (those that do not indicate a bad input stream) when
       accessed by an HTTP/1.1 client. [Roy Fielding]
    *) Added missing timeouts for sending header fields, error responses,
       and the last chunk of chunked encoding, each of which could have
       resulted in a process being stuck in write forever.  Using soft_timeout
       requires that the sender check for an aborted connection rather than
       continuing after an EINTR.  Timeouts that used to be initiated before
       send_http_header (and never killed) are now initiated only within or
       around the routines that actually do the sending, and not allowed to
       propagate above the caller.  [Roy Fielding]
    *) mod_auth_anon required an @ or a . in the email address, not both.
       [Dirk vanGulik]
    *) per_dir_defaults weren't set correctly until directory_walk for
       name-based vhosts.  This fixes an obscure bug with the wrong config
       info being used for vhosts that share the same ip as the server.
       [Dean Gaudet]
    *) Improved generation of modules/Makefile to be more generic for
       new module directories. [Ken Coar, Chuck Murcko, Roy Fielding]
    *) Generate makefile dependency for Configuration based on the actual
       name given when running the Configure process.  [Dean Gaudet]
    *) Fixed problem with vhost error log not being set prior to
       initializing virtual hosts. [Dean Gaudet]
    *) Fixed infinite loop when a trailing slash is included after a type map
       file URL (extra path info). [Petr Lampa]
    *) Fixed server status updating of per-connection counters. [Roy Fielding]
    *) Add documentation for DNS issues (reliability and security), and try
       to explain the virtual host matching process.  [Dean Gaudet]
    *) Try to continue gracefully by disabling the vhost if a DNS lookup
       fails while parsing the configuration file.  [Dean Gaudet]
    *) Improved calls to setsockopt.  [Roy Fielding]
    *) Negotiation changes: Don't output empty content-type in variant list;
       Output charset in variant list; Return sooner from handle_multi() if
       no variants found; Add handling of '*' wildcard in Accept-Charset.
       [Petr Lampa and Paul Sutton]
    *) Fixed overlaying of request/sub-request notes and headers in
       mod_negotiation.  [Dean Gaudet]
    *) If two variants' charset quality are equal and one is the default
       charset (iso-8859-1), then prefer the variant that was specifically
       listed in Accept-Charset instead of the default.  [Petr Lampa]
    *) Memory allocation problem in push_array() -- it would corrupt memory
       when nalloc==0.  [Kai Risku <> and Roy Fielding]
    *) invoke_handler() doesn't handle mime arguments in content-type
       [Petr Lampa] PR#160
    *) Reduced IdentityCheck timeout to 30 seconds, as per RFC 1413 minimum.
       [Ken Coar]
    *) Fixed problem with ErrorDocument not working for virtual hosts
       due to one of the performance changes in 1.2b7. [Dean Gaudet]
    *) Log an error message if we get a request header that is too long,
       since it may indicate a buffer overflow attack. [Marc Slemko]
    *) Made is_url() allow "[-.+a-zA-Z0-9]+:" as a valid scheme and
       not reject URLs without a double-slash, as per RFC2068 section 3.2.
       [Ken Coar] PR #146, #187
    *) Added table entry placeholder for new header_parser callback
       in all of the distributed modules. [Ken Coar] PR #191
    *) Allow for cgi files without the .EXE extension on them under OS/2.
       [Garey Smiley] PR #59
    *) Fixed error message when resource is not found and URL contains
       path info. [Petr Lampa and Dean Gaudet] PR #40
    *) Fixed user and server confusion over what should be a virtual host
       and what is the main server, resulting in access to something
       other than the name defined in the virtualhost directive (but
       with the same IP address) failing. [Dean Gaudet]
    *) Updated mod_rewrite to version 3.0.2, which: fixes compile error on
       AIX; improves the redirection stuff to enable the users to generally
       redirect to http, https, gopher and ftp; added TIME variable for
       RewriteCond which expands to YYYYMMDDHHMMSS strings and added the
       special patterns >STRING, <STRING and =STRING to RewriteCond, which
       can be used in conjunction with %{TIME} or other variables to create
       time-dependent rewriting rules. [Ralf S. Engelschall]
    *) bpushfd() no longer notes cleanups for the file descriptors it is handed.
       Module authors may need to adjust their code for proper cleanup to take
       place (that is, call note_cleanups_for_fd()). This change fixes problems
       with file descriptors being erroneously closed when the proxy module was
       in use. [Ben Laurie]
    *) Fix bug in suexec reintroduced by changes in 1.2b7 which allows
       initgroups() to hose the group information needed for later
       comparisons. [Randy Terbush]
    *) Remove unnecessary call to va_end() in create_argv() which
       caused a SEGV on some systems.
    *) Use proper MAXHOSTNAMELEN symbol for limiting length of server name.
       [Dean Gaudet]
    *) Clear memory allocated for listeners. [Randy Terbush]
    *) Improved handling of IP address as a virtualhost address and
       introduced "_default_" as a synonym for the default vhost config.
       [Dean Gaudet] PR #212
  Changes with Apache 1.2b7
    *) Port to  UXP/DS(V20) [Toshiaki Nomura <>]
    *) unset Content-Length if chunked (RFC-2068) [Petr Lampa]
    *) mod_negotiation fixes [Petr Lampa] PR#157, PR#158, PR#159
       - replace protocol response numbers with symbols
       - save variant-list into main request notes
       - free allocated memory from subrequests
       - merge notes, headers_out and err_headers_out
    *) changed status check mask in proxy_http.c from "HTTP/#.# ### *" to
       "HTTP/#.# ###*" to be more lenient about what we accept.
       [Chuck Murcko]
    *) more proxy FTP bug fixes:
       - Changed send_dir() to remove user/passwd from displayed URL.
       - Changed login error messages to be more descriptive.
       - remove setting of SO_DEBUG socket option
       - Make ftp_getrc() more lenient about multiline responses,
         specifically, 230 responses which don't have continuation 230-
         on each line). These seem to be all NT FTP servers, and while
         perhaps questionable, they appear to be legal by RFC 959.
       - Add missing kill_timeout() after transfer to user completes.
       [Chuck Murcko]
    *) Fixed problem where a busy server could hang when restarting
       after being sent a SIGHUP due to child processes not exiting.
       [Marc Slemko]
    *) Modify mod_include escaping so a '\' only signifies an escaped
       character if the next character is one that needs
       escaping.  [Ben Laurie]
    *) Eliminated possible infinite loop in mod_imap when relative URLs are
       used with a 'base' directive that does not have a '/' in it.
       [Marc Slemko, reported by Onno Witvliet <>]
    *) Reduced the default timeout from 1200 seconds to 300, and the
       one in the sample configfile from 400 to 300.  [Marc Slemko]
    *) Stop vbprintf from crashing if given a NULL string pointer;
       print (null) instead.  [Ken Coar]
    *) Don't disable Nagle algorithm if system doesn't have TCP_NODELAY.
       [Marc Slemko and Roy Fielding]
    *) Fixed problem with mod_cgi-generated internal redirects trying to
       read the request message-body twice. [Archie Cobbs and Roy Fielding]
    *) Reduced timeout on lingering close, removed possibility of a blocked
       read causing the child to hang, and stopped logging of errors if
       the socket is not connected (reset by client).  [Roy Fielding]
    *) Rearranged main child loop to remove duplication of code in
       select/accept and keep-alive requests, fixed several bugs regarding
       checking scoreboard_image for exit indication and failure to
       account for all success conditions and trap all error conditions,
       prevented multiple flushes before closing the socket; close the entire
       socket buffer instead of just one descriptor, prevent logging of
       EPROTO and ECONNABORTED on platforms where supported, and generally
       improved readability.  [Roy Fielding]
    *) Extensive performance improvements. Cleaned up inefficient use of
       auto initializers, multiple is_matchexp calls on a static string,
       and excessive merging of response_code_strings. [Dean Gaudet]
    *) Added double-buffering to mod_include to improve performance on
       server-side includes. [Marc Slemko]
    *) Several fixes for suexec wrapper. [Randy Terbush]
       - Make wrapper work for files on NFS filesystem.
       - Fix portability problem of MAXPATHLEN.
       - Fix array overrun problem in clean_env().
       - Fix allocation of PATH environment variable
    *) Removed extraneous blank line is description of mod_status chars.
       [Kurt Kohler]
    *) Logging of errors from the call_exec routine simply went nowhere,
       since the logfile fd has been closed, so now we send them to stderr.
       [Harald T. Alvestrand]
    *) Fixed core dump when DocumentRoot is a CGI.
       [Ben Laurie, reported by]
    *) Fixed potential file descriptor leak in mod_asis; updated it and
       http_core to use pfopen/pfclose instead of fopen/fclose.
       [Randy Terbush and Roy Fielding]
    *) Fixed handling of unsigned ints in ap_snprintf() on some chips such
       as the DEC Alpha which is 64-bit but uses 32-bit ints.
       [Dean Gaudet and Ken Coar]
    *) Return a 302 response code to the client when sending a redirect
       due to a missing trailing '/' on a directory instead of a 301; now
       it is cacheable. [Markus Gyger]
    *) Fix condition where, if a bad directive occurs in .htaccess, and
       sub_request() goes first to this directory, then log_reason() will
       SIGSEGV because it doesn't have initialized r->per_dir_config.
       [PR#162 from Petr Lampa, fix by Marc Slemko and Dean Gaudet]
    *) Fix handling of lang_index in is_variant_better().  This was
       causing problems which resulted in the server sending the
       wrong language document in some cases. [Petr Lampa]
    *) Remove free() from clean_env() in suexec wrapper. This was nuking
       the clean environment on some systems.
    *) Tweak byteserving code (e.g. serving PDF files) to work around
       bugs in Netscape Navigator and Microsoft Internet Explorer.
       Emit Content-Length header when sending multipart/byteranges.
       [Alexei Kosut]
    *) Port to HI-UX/WE2. [Nick Maclaren]
    *) Port to HP MPE operating system for HP 3000 machines
       [Mark Bixby <>]
    *) Fixed bug which caused a segmentation fault if only one argument
       given to RLimit* directives. [Ed Korthof]
    *) Continue persistent connection after 204 or 304 response. [Dean Gaudet]
    *) Improved buffered output to the client by delaying the flush decision
       until the BUFF code is actually about to read the next request.
       This fixes a problem introduced in 1.2b5 with clients that send
       an extra CRLF after a POST request. Also improved chunked output
       performance by combining writes using writev() and removing as
       many bflush() calls as possible.  NOTE: Platforms without writev()
       must add -DNO_WRITEV to the compiler CFLAGS, either in Configuration
       or Configure, unless we have already done so.  [Dean Gaudet]
    *) Fixed mod_rewrite bug which truncated the rewritten URL [Marc Slemko]
    *) Fixed mod_info output corruption bug introduced by buffer overflow
       fixes. [Dean Gaudet]
    *) Fixed http_protocol to correctly output all HTTP/1.1 headers, including
       for the special case of a 304 response.  [Paul Sutton]
    *) Improved handling of TRACE method by bypassing normal method handling
       and header parsing routines; fixed Allow response to always allow TRACE.
       [Dean Gaudet]
    *) Fixed compiler warnings in the regex library. [Dean Gaudet]
    *) Cleaned-up some of the generated HTML. [Ken Coar]
  Changes with Apache 1.2b6
    *) Allow whitespace in imagemap mapfile coordinates. [Marc Slemko]
    *) Fix typo introduced in fix for potential infinite loop around
       accept() in child_main(). This change caused the rev to 1.2b6.
       1.2b5 was never a public beta.
  Changes with Apache 1.2b5
    *) Change KeepAlive semantics (On|Off instead of a number), add
       MaxKeepAliveRequests directive. [Alexei Kosut]
    *) Various NeXT compilation patches, as well as a change in
       regex/regcomp.c since that file also used a NEXT define.
       [Andreas Koenig]
    *) Allow * to terminate the end of a directory match in mod_dir.
       Allows /~* to match for both /~joe and /~joe/. [David Bronder]
    *) Don't call can_exec() if suexec_enabled. Calling this requires
       scripts executed by the suexec wrapper to be world executable, which
       defeats one of the advantages of running the wrapper. [Randy Terbush]
    *) Portability Fix: IRIX complained with 'make clean' about *pure* (removed)
       [Jim Jagielski]
    *) Migration from sprintf() to snprintf() to avoid buffer
       overflows. [Marc Slemko]
    *) Provide portable snprintf() implementation (ap_snprintf)
       as well as *cvt family. [Jim Jagielski]
    *) Portability Fix: NeXT lacks unistd.h so we wrap it's inclusion
       [Jim Jagielski]
    *) Remove mod_fastcgi.c from the distribution. This module appears
       to be maintained more through the Open Market channels and should
       continue to be easily available at
    *) Fixed bug in modules/Makefile that wouldn't allow building in more
       than one subdirectory (or cleaning, either). [Jeremy Laidman]
    *) mod_info assumed that the config files were relative to ServerRoot.
       [Ken the Rodent]
    *) CGI scripts called as an error document resulting from failed
       CGI execution would hang waiting for POST'ed data. [Rob Hartill]
    *) Log reason when mod_dir returns access HTTP_FORBIDDEN
       [Ken the Rodent]
    *) Properly check errno to prevent display of a directory index
       when server receives a long enough URL to confuse stat().
       [Marc Slemko]
    *) Several security enhancements to suexec wrapper. It is _highly_
       recommended that previously installed versions of the wrapper
       be replaced with this version.  [Randy Terbush, Jason Dour]
          - ~user execution now properly restricted to ~user's home
            directory and below.
          - execution restricted to UID/GID > 100
          - restrict passed environment to known variables
          - call setgid() before initgroups() (portability fix)
          - remove use of setenv() (portability fix)
    *) Add HTTP/1.0 response forcing. [Ben Laurie]
    *) Add access control via environment variables. [Ben Laurie]
    *) Add rflush() function. [Alexei Kosut]
    *) remove duplicate pcalloc() call in new_connection().
    *) Fix incorrect comparison which could allow number of children =
       MaxClients + 1 if less than HARD_SERVER_LIMIT. Also fix potential
       problem if StartServers > HARD_SERVER_LIMIT. [Ed Korthof]
    *) Updated support for OSes (MachTen, ULTRIX, Paragon, ISC, OpenBSD
       AIX PS/2, CONVEXOS. [Jim Jagielski]
    *) Replace instances of inet_ntoa() with inet_addr() for ProxyBlock.
       It's more portable. [Martin Kraemer]
    *) Replace references to make in Makefile.tmpl with $(MAKE).
       [Chuck Murcko]
    *) Add ProxyBlock directive w/IP address caching. Add IP address
       caching to NoCache directive as well. ProxyBlock works with all
       handlers; NoCache now also works with FTP for anonymous logins.
       Still more code cleanup. [Chuck Murcko]
    *) Add "header parse" API hook [Ben Laurie]
    *) Fix byte ordering problems for REMOTE_PORT [Chuck Murcko]
    *) suEXEC wrapper was freeing memory that had not been malloc'ed.
    *) Correctly allow access and auth directives in <Files> sections in
       server config files. [Alexei Kosut]
    *) Fix bug with ServerPath that could cause certain files to be not
       found by the server. [Alexei Kosut]
    *) Fix handling of ErrorDocument so that it doesn't remove a trailing
       double-quote from text and so that it properly checks for unsupported
       status codes using the new index_of_response interface. [Roy Fielding]
    *) Multiple fixes to the lingering_close code in order to avoid being
       interrupted by a stray timeout, to avoid lingering on a connection
       that has already been aborted or never really existed, to ensure that
       we stop lingering as soon as any error condition is received, and to
       prevent being stuck indefinitely if the read blocks.  Also improves
       reporting of error conditions.  [Marc Slemko and Roy Fielding]
    *) Fixed initialization of parameter structure for sigaction.
       [, Adrian Filipi-Martin]
    *) Fixed reinitializing the parameters before each call to accept and
       select, and removed potential for infinite loop in accept.
       [Roy Fielding, after useful PR from]
    *) Fixed condition where, if a child fails to fork, the scoreboard would
       continue to say SERVER_STARTING forever. Eventually, the main process
       would refuse to start new children because count_idle_servers() will
       count those SERVER_STARTING entries and will always report that there
       are enough idle servers. [Phillip Vandry]
    *) Fixed bug in bcwrite regarding failure to account for partial writes.
       Avoided calling bflush() when the client is pipelining requests.
       Removed unnecessary flushes from http_protocol. [Dean Gaudet]
    *) Added description of "." mode in server-status [Jim Jagielski]
  Changes with Apache 1.2b4
    *) Fix possible race condition in accept_mutex_init() that
       could leave a small security hole open allowing files to be
       overwritten in cases where the server UID has write permissions.
       [Marc Slemko]
    *) Fix awk compatibilty problem in Configure. [Jim Jagielski]
    *) Fix portablity problem in util_script where ARG_MAX may not be
       defined for some systems.
    *) Add changes to allow compilation on Machten 4.0.3 for PowerPC.
       [Randal Schwartz]
    *) OS/2 changes to support an MMAP style scoreboard file and UNIX
       style magic #! token for better script portability. [Garey Smiley]
    *) Fix bug in suexec wrapper introduced in b3 that would cause failed
       execution for ~userdir CGI. [Jason Dour]
    *) Fix initgroups() business in suexec wrapper. [Jason Dour]
    *) Fix month off by one in suexec wrapper logging.
  Changes with Apache 1.2b3:
    *) Fix error in mod_cgi which could cause resources not to be properly
       freed, or worse. [Dean Gaudet]
    *) Fix find_string() NULL pointer dereference. [Howard Fear]
    *) Add set_flag_slot() at the request of Dirk and others.
       [Dirk vanGulik]
    *) Sync mod_rewrite with patch level 10. [Ralf Engelschall]
    *) Add changes to improve the error message given for invalid
       ServerName parameters. [Dirk vanGulik]
    *) Add "Authoritative" directive for Auth modules that don't
       currently have it. This gives admin control to assign authoritative
       control to an authentication scheme and allow "fall through" for
       those authentication modules that aren't "Authoritative" thereby
       allowing multiple authentication mechanisms to be chained.
       [Dirk vanGulik]
    *) Remove requirement for ResourceConfig/AccessConfig if not using
       the three config file layout. [Randy Terbush]
    *) Add PASV mode to mod_proxy FTP handler. [Chuck Murcko]
    *) Changes to suexec wrapper to fix the following problems:
       1.  symlinked homedirs will kill ~userdirs.
       2.  initgroups() on Linux 2.0.x clobbers gr->grid.
       3.  CGI command lines paramters problems
       4.  pw-pwdir for "docroot check" still the httpd user's pw record.
      [Randy Terbush, Jason Dour]
    *) Change create_argv() to accept variable arguments. This fixes
       a problem where arguments were not getting passed to the CGI via
       argv[] when the suexec wrapper was active. [Randy Terbush, Jake Buchholz]
    *) Collapse multiple slashes in path URLs to properly apply
       handlers defined by <Location>. [Alexei Kosut]
    *) Define a sane set of DEFAULT_USER and DEFAULT_GROUP values for AIX.
    *) Improve the accuracy of request duration timings by setting
       r->request_time in read_request_line() instead of read_request().
       [Dean Gaudet]
    *) Reset timeout while reading via get_client_block() in mod_cgi.c
       Fixes problem with timed out transfers of large files. [Rasmus Lerdorf]
    *) Add the ability to pass different Makefile.tmpl files to Configure
       using the -make flag. [Rob Hartill]
    *) Fix coredump triggered when sending a SIGHUP to the server caused
       by an assertion failure, in turn caused by an uninitialised field in a
       [Ben Laurie]
    *) Add FILEPATH_INFO variable to CGI environment, which is equal to
       PATH_INFO from previous versions of Apache (in certain situations,
       Apache 1.2's PATH_INFO will be different than 1.1's). [Alexei Kosut]
       [later removed in 1.2b11]
    *) Add rwrite() function to API to allow for sending strings of
       arbitrary length. [Doug MacEachern]
    *) Remove rlim_t typedef for NetBSD. Do older versions need this?
    *) Defined rlim_t and WANTHSREGEX=yes and fixed waitpid() substitute for
       NeXT. [Jim Jagielski]
    *) Removed recent modification to promote the status code on internal
       redirects, since the correct fix was to change the default log format
       in mod_log_config so that it outputs the original status. [Rob Hartill]
  Changes with Apache 1.2b2:
    *) Update set_signals() to use sigaction() for setting handlers.
       This appears to fix a re-entrant problem in the seg_fault()
       bus_error() handlers. [Randy Terbush]
    *) Changes to allow mod_status compile for OS/2 [Garey Smiley]
    *) changes for DEC AXP running OSF/1 v3.0. [Marc Evans]
    *) proxy_http.c bugfixes:  [Chuck Murcko]
          1) fixes possible NULL pointer reference w/NoCache
          2) fixes NoCache behavior when using ProxyRemote (ProxyRemote
             host would cache nothing if it was in the local domain,
             and the local domain was in the NoCache list)
          3) Adds Host: header when not available
          4) Some code cleanup and clarification
    *) mod_include.c bugfixes:
          1) Fixed an ommission that caused include variables to not
             be parsed in config errmsg directives [Howard Fear]
          2) Remove HAVE_POSIX_REGEX cruft [Alexei Kosut]
          3) Patch to fix compiler warnings []
          4) Allow backslash-escaping to all quoted text
             [Ben Yoshino <>]
          5) Pass variable to command line if not set in XSSI's env
             [Howard Fear]
    *) Fix infinite loop when processing Content-language lines in
       type-map files. [Alexei Kosut]
    *) Closed file-globbing hole in test-cgi script. [Brian Behlendorf]
    *) Fixed problem in set_[user|group] that prevented CGI execution
       for non-virtualhosts when suEXEC was enabled. [Randy Terbush]
    *) Added PORTING information file.  [Jim Jagielski]
    *) Added definitions for S_IWGRP and S_IWOTH to conf.h [Ben Laurie]
    *) Changed default group to "nogroup" instead of "nobody" [Randy Terbush]
    *) Fixed define typo of FCNTL_SERIALIZED_ACCEPT where
       USE_FCNTL_SERIALIZED_ACCEPT was intended.
    *) Fixed additional uses of 0xffffffff where INADDR_NONE was intended,
       which caused problems of systems where socket s_addr is >32bits.
    *) Added comment to explain (r->chunked = 1) side-effect in
       http_protocol.c [Roy Fielding]
    *) Replaced use of index() in mod_expires.c with more appropriate
       and portable isdigit() test.  [Ben Laurie]
    *) Updated Configure for ...
          OS/2          (DEF_WANTHSREGEX=yes, other code changes)
          *-dg-dgux*    (bad pattern match)
          QNX           (DEF_WANTHSREGEX=yes)
          *-sunos4*     (DEF_WANTHSREGEX=yes, -DUSEBCOPY)
          *-ultrix      (new)
          *-unixware211 (new)
       and added some user diagnostic info.  [Ben Laurie]
    *) In helpers/CutRule, replaced "cut" invocation with "awk" invocation
       for better portability. [Jim Jagielski]
    *) Updated helpers/GuessOS for ...
          SCO 5            (recognize minor releases)
          SCO UnixWare     (braindamaged uname, whatever-whatever-unixware2)
          SCO UnixWare 2.1.1      (requires a separate set of #defines in conf.h)
          IRIX64           (-sgi-irix64)
          ULTRIX           (-unknown-ultrix)
          SINIX            (-whatever-sysv4)
          NCR Unix         (-ncr-sysv4)
       and fixed something in helpers/PrintPath  [Ben Laurie]
  Changes with Apache 1.2b1
    *) Not listed. See <>
  Changes with Apache 1.1.1
    *) Fixed bug where Cookie module would make two entries in the
       logfile for each access [Mark Cox]
    *) Fixed bug where Redirect in .htaccess files would cause memory
       leak. [Nathan Neulinger]
    *) MultiViews now works correctly with AddHandler [Alexei Kosut]
    *) Problems with mod_auth_msql fixed [Dirk vanGulik]
    *) Fix misspelling of "Anonymous_Authorative" directive in mod_auth_anon.
  Changes with Apache 1.1.0
    *) Bring NeXT support up to date. [Takaaki Matsumoto]
    *) Bring QNX support up to date. [Ben Laurie]
    *) Make virtual hosts default to main server keepalive parameters.
       [Alexei Kosut, Ben Laurie]
    *) Allow ScanHTMLTitles to work with lowercase <title> tags. [Alexei Kosut]
    *) Fix missing address family for connect, also remove unreachable statement
       in mod_proxy. [Ben Laurie]
    *) mod_env now turned on by default in Configuration.tmpl.
    *) Bugs which were fixed:
          a) yet more mod_proxy bugs [Ben Laurie]
          b) CGI works again with inetd [Alexei Kosut]
          c) Leading colons were stripped from passwords []
          d) Another fix to multi-method Limit problem []
  Changes with Apache 1.1b4
    *) r->bytes_sent variable restored. [Robert Thau]
    *) Previously broken multi-method <Limit> parsing fixed. [Robert Thau]
    *) More possibly unsecure programs removed from the support directory.
    *) More mod_auth_msql authentication improvements.
    *) VirtualHosts based on Host: headers no longer conflict with the
       Listen directive.
    *) OS/2 compatibility enhancements. [Gary Smiley]
    *) POST now allowed to directory index CGI scripts.
    *) Actions now work with files of the default type.
    *) Bugs which were fixed:
          a) more mod_proxy bugs
          b) early termination of inetd requests
          c) compile warnings on several systems
          d) problems when scripts stop reading output early
  Changes with Apache 1.1b3
    *) Much of cgi-bin and all of cgi-src has been removed, due to
       various security holes found and that we could no longer support
    *) The "Set-Cookie" header is now special-cased to not merge multiple
       instances, since certain popular browsers can not handle multiple
       Set-Cookie instructions in a single header. [Paul Sutton]
    *) rprintf() added to buffer code, occurrences of sprintf removed.
       [Ben Laurie]
    *) CONNECT method for proxy module, which means tunneling SSL should work.
       (No crypto needed)  Also a NoCache config directive.
    *) Several API additions: pstrndup(), table_unset() and get_token()
       functions now available to modules.
    *) mod_imap fixups, in particular Location: headers are now complete
    *) New "info" module which reports on installed module set through a
       special URL, a la mod_status.
    *) "ServerPath" directive added - allows for graceful transition
       for Host:-header-based virtual hosts.
    *) Anonymous authentication module improvements.
    *) MSQL authentication module improvements.
    *) Status module design improved - output now table-based. [Ben Laurie]
    *) htdigest utility included for use with digest authentication
    *) mod_negotiation: Accept values with wildcards to be treated with
       less priority than those without wildcards at the same quality
       value. [Alexei Kosut]
    *) Bugs which were fixed:
          a) numerous mod_proxy bugs
          b) CGI early-termination bug [Ben Laurie]
          c) Keepalives not working with virtual hosts
          d) RefererIgnore problems
          e) closing fd's twice in mod_include (causing core dumps on
             Linux and elsewhere).
  Changes with Apache 1.1b2
    *) Bugfixes:
          a) core dumps in mod_digest
          b) truncated hostnames/ip address in the logs
          c) relative URL's in mod_imap map files
  Changes with Apache 1.1b1
    *) Not listed. See <>
  Changes with Apache 1.0.3
    *) Internal redirects which occur in mod_dir.c now preserve the
       query portion of a request (the bit after the question mark).
       [Adam Sussman]
    *) Escape active characters '<', '>' and '&' in html output in
       directory listings, error messages and redirection links.
       [David Robinson]
    *) Apache will now work with LynxOS 2.3 and later [Steven Watt]
    *) Fix for POSIX compliance in waiting for processes in alloc.c.
       [Nick Williams]
    *) setsockopt no longer takes a const declared argument [Martijn Koster]
    *) Reset timeout timer after each successful fwrite() to the network.
       This patch adds a reset_timeout() procedure that is called by
       send_fd() to reset the timeout ever time data is written to the net.
       [Nathan Schrenk]
    *) timeout() signal handler now checks for SIGPIPE and reports
       lost connections in a more user friendly way. [Rob Hartill]
    *) Location of the "scoreboard" file which used to live in /tmp is
       now configurable (for OSes that can't use mmap) via ScoreBoardFile
       which works similar to PidFile (in httpd.conf) [Rob Hartill]
    *) Include sys/resource.h in the correct place for SunOS4 [Sameer Parekh]
    *) the pstrcat call in mod_cookies.c didn't have an ending NULL,
       which caused a SEGV with cookies enabled
    *) Output warning when MinSpareServers is set to <= 0 and change it to 1
       [Rob Hartill]
    *) Log the UNIX textual error returned by some system calls, in
       particular errors from accept() [David Robinson]
    *) Add strerror function to util.c for SunOS4 [Randy Terbush]
  Changes with Apache 1.0.2
    *) patch to get Apache compiled on UnixWare 2.x, recommended as
       a temporary measure, pending rewrite of rfc931.c. [Chuck Murcko]
    *) Fix get_basic_auth_pw() to set the auth_type of the request.
       [David Robinson]
    *) past changes to http_config.c to only use the
       setrlimit function on systems defining RLIMIT_NOFILE
       broke the feature on SUNOS4. Now defines HAVE_RESOURCE
       for SUNOS and prototypes the needed functions.
    *) Remove uses of MAX_STRING_LEN/HUGE_STRING_LEN from several routines.
       [David Robinson]
    *) Fix use of pointer to scratch memory. [Cliff Skolnick]
    *) Merge multiple headers from CGI scripts instead of taking last
       one. [David Robinson]
    *) Add support for SCO 5. [Ben Laurie]
  Changes with Apache 1.0.1
    *) Silence mod_log_referer and mod_log_agent if not configured
       [Randy Terbush]
    *) Recursive includes can occur if the client supplies PATH_INFO data
       and the server provider uses relative links; as file.html
       relative to /doc.shtml/pathinfo is /doc.shtml/file.html. [David Robinson]
    *) The replacement for initgroups() did not call {set,end}grent(). This
       had two implications: if anything else used getgrent(), then
       initgroups() would fail, and it was consuming a file descriptor.
       [Ben Laurie]
    *) On heavily loaded servers it was possible for the scoreboard to get
       out of sync with reality, as a result of a race condition.
       The observed symptoms are far more Apaches running than should
       be, and heavy system loads, generally followed by catastrophic
       system failure. [Ben Laurie]
    *) Fix typo in license. [David Robinson]
  Changes with Apache 1.0.0                                        23 Nov 1995
    *) Not listed. See <>
  Changes with Apache 0.8.16                                       05 Nov 1995
    *) New man page for 'httpd' added to support directory [David Robinson]
    *) .htgroup files can have more than one line giving members for a
       given group (each must have the group name in front), for NCSA
       back-compatibility [Robert Thau]
    *) Mutual exclusion around accept() is on by default for SVR4 systems
       generally, since they generally can't handle multiple processes in
       accept() on the same socket.  This should cure flaky behavior on
       a lot of those systems.  [David Robinson]
    *) AddType, AddEncoding, and AddLanguage directives take multiple
       extensions on a single command line [David Robinson]
    *) UserDir can be disabled for a given virtual host by saying
       "UserDir disabled" in the <VirtualHost> section --- it was a bug
       that this didn't work.  [David Robinson]
    *) Compiles on QNX [Ben Laurie]
    *) Corrected parsing of ctime time format [David Robinson]
    *) httpd does a perror() before exiting if it can't log its pid
       to the PidFile, to make diagnosing the error a bit easier.
       [David Robinson]
    *) <!--#include file="..."--> can no longer include files in the
       parent directory, for NCSA back-compatibility.  [David Robinson]
    *) '~' is *not* escaped in URIs generated for directory listings
       [Roy Fielding]
    *) Eliminated compiler warning in the imagemap module [Randy Terbush]
    *) Fixed bug involving handling URIs with escaped %-characters
       in redirects [David Robinson]
  Changes with Apache 0.8.15                                       14 Oct 1995
    *) Switched to new, simpler license
    *) Eliminated core dumps with improperly formatted DBM group files [Mark Cox]
    *) Don't allow requests for ordinary files to have PATH_INFO [Ben Laurie]
    *) Reject paths containing %-escaped '%' or null characters [David Robinson]
    *) Correctly handles internal redirects to files with names containing '%'
       [David Robinson]
    *) Repunctuated some error messages [Aram Mirzadeh, Andrew Wilson]
    *) Use geteuid() rather than getuid() to see if we have root privilege,
       so that server correctly resets privilege if run setuid root.  [Andrew
    *) Handle ftp: and telnet: URLs correctly in imagemaps (built-in module)
       [Randy Terbush]
    *) Fix relative URLs in imagemap files [Randy Terbush]
    *) Somewhat better fix for the old "Alias /foo/ /bar/" business
       [David Robinson]
    *) Don't repeatedly open the ErrorLog if a bunch of <VirtualHost>
       entries all name the same one. [David Robinson]
    *) Fix directory listings with filenames containing unusual characters
       [David Robinson]
    *) Better URI-escaping for generated URIs in directories with filenames
       containing unusual characters [Ben Laurie]
    *) Fixed potential FILE* leak in http_main.c [Ben Laurie]
    *) Unblock alarms on error return from spawn_child() [David Robinson]
    *) Sample Config files have extra note for SCO users [Ben Laurie]
    *) Configuration has note for HP-UX users [Rob Hartill]
    *) Eliminated some bogus Linux-only #defines in conf.h [Aram Mirzadeh]
    *) Nuked bogus #define in httpd.h [David Robinson]
    *) Better test for whether a system has setrlimit() [David Robinson]
    *) Calls update_child_status() after reopen_scoreboard() [David Robinson]
    *) Doesn't send itself SIGHUP on startup when run in the -X debug-only mode
       [Ben Laurie]
  Changes with Apache 0.8.14                                       19 Sep 1995
    *) Compiles on SCO ODT 3.0 [Ben Laurie]
    *) AddDescription works (better) [Ben Laurie]
    *) Leaves an intelligible error diagnostic when it can't set group
       privileges on standalone startup [Andrew Wilson]
    *) Compiles on NeXT again --- the 0.8.13 RLIMIT patch was failing on
       that machine, which claims to be BSD but does not support RLIMIT.
       [Randy Terbush]
    *) gcc -Wall no longer complains about an unused variable when util.c
       is compiled with -DMINIMAL_DNS [Andrew Wilson]
    *) Nuked another compiler warning for -Wall on Linux [Aram Mirzadeh]
  Changes with Apache 0.8.13                                       07 Sep 1995
    *) Make IndexIgnore *work* (ooops) [Jarkko Torppa]
    *) Have built-in imagemap code recognize & honor Point directive [James
    *) Generate cleaner directory listings in directories with a mix of
       long and short filenames [Rob Hartill]
    *) Properly initialize dynamically loaded modules [Royston Shufflebotham]
    *) Properly default ServerName for virtual servers [Robert Thau]
    *) Rationalize handling of BSD in conf.h and elsewhere [Randy Terbush,
       Paul Richards and a cast of thousands...]
    *) On self-identified BSD systems (we don't try to guess any more),
       allocate a few extra file descriptors per virtual host with setrlimit,
       if we can, to avoid running out. [Randy Terbush]
    *) Write 22-character lock file name into buffer with enough space
       on startup [Konstantin Olchanski]
    *) Use archaic setpgrp() interface on NeXT, which requires it [Brian
    *) Suppress -Wall warning by casting const away in util.c [Aram Mirzadeh]
    *) Suppress -Wall warning by initializing variable in negotiation code
       [Tobias Weingartner]
  Changes with Apache 0.8.12                                       31 Aug 1995
    *) Doesn't pause three seconds after including a CGI script which is
       too slow to die off (this is done by not even trying to kill off
       subprocesses, including the SIGTERM/pause/SIGKILL routine, until
       after the entire document has been processed).  [Robert Thau]
    *) Doesn't do SSI if Options Includes is off.  (Ooops).  [David Robinson]
    *) Options IncludesNoExec allows inclusion of at least text/* [Roy Fielding]
    *) Allows .htaccess files to override <Directory> sections naming the
       same directory [David Robinson]
    *) Removed an efficiency hack in sub_req_lookup_uri which was
       causing certain extremely marginal cases (e.g., ScriptAlias of a
       *particular* index.html file) to fail.  [David Robinson]
    *) Doesn't log an error when the requested URI requires
       authentication, but no auth header line was supplied by the
       client; this is a normal condition (the client doesn't no auth is
       needed here yet).  [Robert Thau]
    *) Behaves more sanely when the name server loses its mind [Sean Welch]
    *) RFC931 code compiles cleanly on old BSDI releases [Randy Terbush]
    *) RFC931 code no longer passes out name of prior clients on current
       requests if the current request came from a server that doesn't
       do RFC931.  [David Robinson]
    *) Configuration script accepts "Module" lines with trailing whitespace.
       [Robert Thau]
    *) Cleaned up compiler warning from mod_access.c [Robert Thau]
    *) Cleaned up comments in mod_cgi.c [Robert Thau]
  Changes with Apache 0.8.11                                       24 Aug 1995
    *) Wildcard <Directory> specifications work.  [Robert Thau]
    *) Doesn't loop for buggy CGI on Solaris [Cliff Skolnick]
    *) Symlink checks (FollowSymLinks off, or SymLinkIfOwnerMatch) always check
       the file being requested itself, in addition to the directories leading
       up to it. [Robert Thau]
    *) Logs access failures due to symlink checks or invalid client address
       in the error log [Roy Fielding, Robert Thau]
    *) Symlink checks deal correctly with systems where lstat of
       "/path/to/some/link/" follows the link.  [Thau, Fielding]
    *) Doesn't reset DirectoryIndex to 'index.html' when
       other directory options are set in a .htaccess file.  [Robert Thau]
    *) Clarified init code and nuked bogus warning in mod_access.c
       [Florent Guillaume]
    *) Corrected several directives in sample srm.conf
       --- includes corrections to directory indexing icon-related directives
       (using unknown.gif rather than unknown.xbm as the DefaultIcon, doing
       icons for encodings right, and turning on AddEncoding by default).
       [Roy Fielding]
    *) Corrected descriptions of args to AddIcon and AddAlt in command table
       [James Cloos]
    *) INSTALL & README mention "contributed modules" directory [Brian
    *) Fixed English in the license language...  "for for" --> "for".
       [Roy Fielding]
    *) Fixed ScriptAlias/Alias interaction by moving ScriptAlias handling to
       mod_alias.c, merging it almost completely with handling of Alias, and
       adding a 'notes' field to the request_rec which allows the CGI module
       to discover whether the Alias module has put this request through
       ScriptAlias (which it needs to know for back-compatibility, as the old
       NCSA code did not check Options ExecCGI in ScriptAlias directories).
       [Robert Thau]
  Changes with Apache 0.8.10                                       18 Aug 1995
    *) AllowOverride applies to the named directory, and not just
       subdirectories.  [David Robinson]
    *) Do locking for accept() exclusion (on systems that need it)
       using a special file created for the purpose in /usr/tmp, and
       not the error log; using the error log causes real problems
       if it's NFS-mounted; this is known to be the cause of a whole
       lot of "server hang" problems with Solaris.  [David Robinson;
       thanks to Merten Schumann for help diagnosing the problem].
  Changes with Apache 0.8.9                                        12 Aug 1995
    *) Compiles with -DMAXIMUM_DNS ---- ooops! [Henrik Mortensen]
    *) Nested includes see environment variables of the including document,
       for NCSA bug-compatibility (some sites have standard footer includes
       which try to print out the last-modified date).  [Eric Hagberg/Robert
    *) <!--exec cgi="/some/uri/here"--> always treats the item named by the
       URI as a CGI script, even if it would have been treated as something
       else if requested directly, for NCSA back-compatibility.  (Note that
       this means that people who know the name of the script can see the
       code just by asking for it).  [Robert Thau]
    *) New version of dbmmanage script included in support directory as
    *) Check if scoreboard file couldn't be opened, and say so, rather
       then going insane [David Robinson]
    *) POST to CGI works on A/UX [Jim Jagielski]
    *) AddIcon and AddAlt commands work properly [Rob Hartill]
    *) NCSA server push works properly --- the Arena bug compatibility
       workaround, which broke it, is gone (use -DARENA_BUG_WORKAROUND
       if you still want the workaround).  [Rob Hartill]
    *) If client didn't submit any Accept-encodings, ignore encodings in
       content negotiation.  (NB this will all have to be reworked anyway
       for the new HTTP draft).  [Florent Guillaume]
    *) Don't dump core when trying to log timed-out requests [Jim Jagielski]
    *) Really honor CacheNegotiatedDocs [Florent Guillaume]
    *) Give Redirect priority over Alias, for NCSA bug compatibility
       [David Robinson]
    *) Correctly set PATH_TRANSLATED in all cases from <!--#exec cmd=""-->,
       paralleling earlier bug fix for CGI [David Robinson]
    *) If DBM auth is improperly configured, report a server error and don't
       dump core.
    *) Deleted FCNTL_SERIALIZED_ACCEPTS from conf.h entry for A/UX;
       it seems to work well enough without it (even in a 10 hits/sec
       workout), and the overhead for the locking under A/UX is
       alarmingly high (though it is very low on other systems).
       [Eric Hagberg, Jim Jagielski]
    *) Fixed portability problems with mod_cookies.c [Cliff Skolnick]
    *) Further de-Berklize mod_cookies.c; change the bogus #include.  [Brian
       Behlendorf/Eric Hagberg]
    *) More improvements to default Configuration for A/UX [Jim Jagielski]
    *) Compiles clean on NEXT [Rob Hartill]
    *) Compiles clean on SGI [Robert Thau]
  Changes with Apache 0.8.8                                        08 Aug 1995
    *) SunOS library prototypes now never included unless explicitly
       requested in the configuration (via -DSUNOS_LIB_PROTOTYPES);
       people using GNU libc on SunOS are screwed by prototypes for the
       standard library.
       (Those who wish to compile clean with gcc -Wall on a standard
       SunOS setup need the prototypes, and may obtain them using
       -DSUNOS_LIB_PROTOTYPES.  Those wishing to use -Wall on a system
       with nonstandard libraries are presumably competent to make their
       own arrangements).
    *) Strips trailing '/' characters off both args to the Alias command,
       to make 'Alias /foo/ /bar/' work.
  Changes with Apache 0.8.7                                        03 Aug 1995
    *) Don't hang when restarting with a child from 'TransferLog "|..."' running
       [reported by David Robinson]
    *) Compiles clean on OSF/1 [David Robinson]
    *) Added some of the more recent significant changes (AddLanguage stuff,
       experimental LogFormat support) to CHANGES file in distribution root
  Changes with Apache 0.8.6                                        02 Aug 1995
    *) Deleted Netscape reload workaround --- it's in violation of HTTP specs.
       (If you actually wanted a conditional GET which bypassed the cache, you
       couldn't get it). [Reported by Roy Fielding]
    *) Properly terminate headers on '304 Not Modified' replies to conditional
       GETs --- no browser we can find cares much, but the CERN proxy chokes.
       [Reported by Cliff Skolnick; fix discovered independently by Rob Hartill]
    *) httpd -v doesn't call itself "Shambhala".  [Reported by Chuck Murcko]
    *) SunOS lib-function prototypes in conf.h conditionalized on __GNUC__,
       not __SUNPRO_C (they're needed to quiet gcc -Wall, but acc chokes on 'em,
       and older versions don't set the __SUNPRO_C preprocessor variable).  On
       all other systems, these are never used anyway.  [Reported by Mark Cox].
    *) Scoreboard file (/tmp/htstatus.*) no longer publically writable.
  Changes with Apache 0.8.5                                        01 Aug 1995
    *) Added last-minute configurable log experiment, as optional module
    *) Correctly set r->bytes_sent for HTTP/0.9 requests, so they get logged
       properly.  (One-line fix to http_protocol.c).
    *) Work around bogus behavior when reloading from Netscape.
       It's Netscape's bug --- for some reason they expect a request with
       If-modified-since: to not function as a conditional GET if it also
       comes with Pragma: no-cache, which is way out of line with the HTTP
       spec (according to Roy Fielding, the redactor).
    *) Added parameter to set maximum number of server processes.
    *) Added patches to make it work on A/UX.  A/UX is *weird*.  [Eric Hagberg,
       Jim Jagielski]
    *) IdentityCheck bugfix [Chuck Murcko].
    *) Corrected cgi-src/Makefile entry for new imagemap script.  [Alexei Kosut]
    *) More sample config file corrections; add extension to AddType for
       *.asis, move AddType generic description to its proper place, and
       fix miscellaneous typos. [ Alexei Kosut ]
    *) Deleted the *other* reference to the regents from the Berkeley
       legal disclaimer (everyplace).
    *) Nuked Shambhala name from src/README; had already cleaned it out
       of everywhere else.
  Changes with Apache 0.8.4
    *) Changes to server-pool management parms --- renamed current
       StartServers to MinSpareServers, created separate StartServers
       parameter which means what it says, and renamed MaxServers to
       MaxSpareServers (though the old name still works, for NCSA 1.4
       back-compatibility).  The old names were generally regarded as
       too confusing.  Also altered "docs" in sample config files.
    *) More improvements to default config files ---
       sample directives (commented out) for XBitHack, BindAddress,
       CacheNegotiatedDocs, VirtualHost; decent set of AddLanguage
       defaults, AddTypes for send-as-is and imagemap magic types, and
       improvements to samples for DirectoryIndex [Alexei Kosut]
    *) Yet more improvements to default config files --- changes to
       Alexei's sample AddLanguage directives, and sample LanguagePriority
       [ Florent Guillaume ]
    *) Set config file locations properly if not set in httpd.conf
       [ David Robinson ]
    *) Don't escape URIs in internal redirects multiple times; don't
       do that when translating PATH_INFO to PATH_TRANSLATED either.
       [ David Robinson ]
    *) Corrected spelling of "Required" in 401 error reports [Andrew Wilson]
  Changes with Apache 0.8.3
    *) Edited distribution README to *briefly* summarize installation
       procedures, and give a pointer to the INSTALL file in the src/
    *) Upgraded imagemap script in cgi-bin to 1.8 version from more
       recent NCSA distributions.
    *) Bug fix to previous bug fix --- if .htaccess file and <Directory>
       exist for the same directory, use both and don't segfault.  [Reported
       by David Robinson]
    *) Proper makefile dependencies [David Robinson]
    *) Note (re)starts in error log --- reported by Rob Hartill.
    *) Only call no2slash() after get_path_info() has been done, to
       preserve multiple slashes in the PATH_INFO [NCSA compatibility,
       reported by Andrew Wilson, though this one is probably a real bug]
    *) Fixed mod_imap.c --- relative paths with base_uri referer don't
       dump core when Referer is not supplied. [Randy Terbush]
    *) Lightly edited sample config files to refer people to our documentation
       instead of NCSA's, and to list Rob McCool as *original* author (also
       deleted his old, and no doubt non-functional email address).  Would be
       nice to have examples of new features...
  Changes with Apache 0.8.2                                        19 Jul 1995
    *) Added AddLanuage code [Florent Guillaume]
    *) Don't say "access forbidden" when a CGI script is not found.  [Mark Cox]
    *) All sorts of problems when MultiViews finds a directory.  It would
       be nice if mod_dir.c was robust enough to handle that, but for now,
       just punt.  [reported by Brian Behlendorf]
    *) Wait for all children on restart, to make sure that the old socket
       is gone and we can reopen it.  [reported by Randy Terbush]
    *) Imagemap module is enabled in default Configuration
    *) RefererLog and UserAgentLog modules properly default the logfile
       [Randy Terbush]
    *) Mark Cox's mod_cookies added to the distribution as an optional
       module (commented out in the default Configuration, and noted as
       an experiment, along with mod_dld). [Mark Cox]
    *) Compiles on ULTRIX (a continuing battle...). [Robert Thau]
    *) Fixed nasty bug in SIGTERM handling [reported by Randy Terbush]
    *) Changed "Shambhala" to "Apache" in API docs. [Robert Thau]
    *) Added new, toothier legal disclaimer. [Robert Thau; copied from BSD
  Changes with Apache 0.8.1
    *) New imagemap module [Randy Terbush]
    *) Replacement referer log module with NCSA-compatible RefererIgnore
       [Matthew Gray again]
    *) Don't mung directory listings with very long filenames.
       [Florent Guillaume]
  Changes with Apache 0.8.0 (nee Shambhala 0.6.2)                  16 Jul 1995
    *) New config script.  See INSTALL for info.  [Robert Thau]
    *) Scoreboard mechanism for regulating the number of extant server
       processes.  MaxServers and StartServers defaults are the same as
       for NCSA, but the meanings are slightly different.  (Actually,
       I should probably lower the MaxServers default to 10).
       Before asking for a new connection, each server process checks
       the number of other servers which are also waiting for a
       connection.  If there are more than MaxServers, it quietly dies
       off.  Conversely, every second, the root, or caretaker, process
       looks to see how many servers are waiting for a new connection;
       if there are fewer than StartServers, it starts a new one.  This
       does not depend on the number of server processes already extant.
       The accounting is arranged through a "scoreboard" file, named
       /tmp/htstatus.*, on which each process has an independent file
       descriptor (they need to seek without interference).
       The end effect is that MaxServers is the maximum number of
       servers on an *inactive* server machine, but more will be forked
       off to handle unusually heavy loads (or unusually slow clients);
       these will die off when they are no longer needed --- without
       reverting to the overhead of full forking operation.  There is a
       hard maximum of 150 server processes compiled in, largely to
       avoid forking out of control and dragging the machine down.
       (This is arguably too high).
       In my server endurance tests, this mechanism did not appear to
       impose any significant overhead, even after I forced it to put the
       scoreboard file on a normal filesystem (which might have more
       overhead than tmpfs).  [Robert Thau]
    *) Set HTTP_FOO variables for SSI <!--#exec cmd-->s, not just CGI scripts.
       [Cliff Skolnick]
    *) Read .htaccess files even in directory with <Directory> section.
       (Former incompatibility noted on mailing list, now fixed). [Robert
    *) "HEAD /" gives the client a "Bad Request" error message, rather
       than trying to send no body *and* no headers.  [Cliff Skolnick].
    *) Don't produce double error reports for some very obscure cases
       mainly involving auth configuration (the "all modules decline to
       handle" case which is a sure sign of a server bug in most cases,
       but also happens when authentication is badly misconfigured).
       [Robert Thau]
    *) Moved FCNTL_SERIALIZED_ACCEPT defines into conf.h (that's what
       it's *for*, and this sort of thing really shouldn't be cluttering
       up the Makefile). [Robert Thau]
    *) Incidental code cleanups in http_main.c --- stop dragging
       sa_client around; just declare it where used.  [Robert Thau]
    *) Another acc-related fix.  (It doesn't like const char
       in some places...). [Mark Cox]
  Changes with Shambhala 0.6.1                                     13 Jul 1995
    *) Fixed auth_name-related typos in http_core.c [Brian Behlendorf]
       Also, fixed auth typo in http_protocol.c unmasked by this fix.
    *) Compiles clean with acc on SunOS [Paul Sutton]
    *) Reordered modules in modules.c so that Redirect takes priority
       over ScriptAlias, for NCSA bug-compatibility [Rob Hartill] ---
       believe it or not, he has an actual site with a ScriptAlias and
       a Redirect declared for the *exact same directory*.  Even *my*
       compatibility fetish wouldn't motivate me to fix this if the fix
       required any effort, but it doesn't, so what the hey.
    *) Fixed to properly default several server_rec fields for virtual
       servers from the corresponding fields in the main server_rec.
       [Cliff Skolnick --- 'port' was a particular irritant].
    *) No longer kills off nph- child processes before they are
       finished sending output. [Matthew Gray]
  Changes with Shambhala 0.6.0                                     10 Jul 1995
    *) Two styles of timeout --- hard and soft.  soft_timeout()s just put
       the connection to the client in an "aborted" state, but otherwise
       allow whatever handlers are running to clean up.  hard_timeout()s
       abort the request in progress completely; anything not tied to some
       resource pool cleanup will leak.  They're still around because I
       haven't yet come up with a more elegant way of handling
       timeouts when talking to something that isn't the client.  The
       default_handler and the dir_handler now use soft timeouts, largely
       so I can test the feature.  [Robert Thau]
    *) TransferLog "| my_postprocessor ..." seems to be there.  Note that
       the case of log handlers dying prematurely is probably handled VERY
       gracelessly at this point, and if the logger stops reading input,
       the server will hang.  (It is known to correctly restart the
       logging process on server restart; this is (should be!) going through
       the same SIGTERM/pause/SIGKILL routine used to ding an errant CGI
       script).  [Robert Thau]
    *) asis files supported (new module).  [Robert Thau]
    *) IdentityCheck code is compiled in, but has not been tested.  (I
       don't know anyone who runs identd). [Robert Thau]
    *) PATH_INFO and PATH_TRANSLATED are not set unless some real PATH_INFO
       came in with the request, for NCSA bug-compatibility. [Robert Thau]
    *) Don't leak the DIR * on HEAD request for a directory. [Robert Thau]
    *) Deleted the block_alarms() stuff from dbm_auth; no longer necessary,
       as timeouts are not in scope. [Robert Thau]
    *) quoted-string args in config files now handled correctly (doesn't drop
       the last character). [Robert Thau; reported by Randy Terbush]
    *) Fixed silly typo in http_main.c which was suddenly fatal in HP-UX.
       How the hell did it ever work? [Robert Thau; reported by Rob Hartill]
    *) mod_core.c --- default_type returns DEFAULT_TYPE (the compile-time
       default default type); the former default default behavior when all
       type-checkers defaulted had been a core dump.  [Paul Sutton]
    *) Copy filenames out of the struct dirent when indexing
       directories.  (On Linux, readdir() returns a pointer to the same
       memory area every time).  Fix is in mod_dir.c.  [Paul Sutton]
  Changes with Shambhala 0.5.3 [not released]
    *) Default response handler notes "file not found" in the error log,
       if the file was not found.  [Cliff Skolnick].
    *) Another Cliff bug --- "GET /~user" now properly redirects (the userdir
       code no longer sets up bogus PATH_INFO which fakes out the directory
       handler). [Cliff Skolnick]
  Changes with Shambhala 0.5.2                                     06 Jul 1995
    *) Changes to http_main.c --- root server no longer plays silly
       games with SIGCHLD, and so now detects and replaces dying
       children.  Child processes just die on SIGTERM, without taking
       the whole process group with them.  Potential problem --- if any
       child process refuses to die, we hang in restart.
       MaxRequestsPerChild may still not work, but it certainly works
       better than it did before this!  [Robert Thau]
    *) mod_dir.c bug fixes: ReadmeName and HeaderName
       work (or work better, at least); over-long description lines
       properly terminated. [Mark Cox]
    *) http_request.c now calls unescape_url() more places where it
       should [Paul Sutton].
    *) More directory handling bugs (reported by Cox)
       Parent Directory link is now set correctly. [Robert Thau]
  Changes with Shambhala 0.5.1                                     04 Jul 1995
    *) Generalized cleanup interface in alloc.c --- any function can be
       registered with alloc.c as a cleanup for a resource pool;
       tracking of files and file descriptors has been reimplemented in
       terms of this interface, so I can give it some sort of a test.
       [Robert Thau]
    *) More changes in alloc.c --- new cleanup_for_exec() function,
       which tracks down and closes all file descriptors which have been
       registered with the alloc.c machinery before the server exec()s a
       child process for CGI or <!--#exec-->.  CGI children now get
       started with exactly three file descriptors open.  Hopefully,
       this cures the problem Rob H. was having with overly persistent
       CGI connections. [Robert Thau]
    *) Mutual exclusion around the accept() in child_main() --- this is
       required on at least SGI, Solaris and Linux, and is #ifdef'ed in
       by default on those systems only (-DFCNTL_SERIALIZED_ACCEPT).
       This uses fcntl(F_SETLK,...) on the error log descriptor because
       flock() on that descriptor won't work on systems which have BSD
       flock() semantics, including (I think) Linux 1.3 and Solaris.
       This does work on SunOS (when the server is idle, only one
       process in the pool is waiting on accept()); it *ought* to work
       on the other systems. [Robert Thau]
    *) FreeBSD and BSDI portability tweaks [Chuck Murcko]
    *) sizeof(*sa_client) bugfix from [Rob Hartill]
    *) pstrdup(..., NULL) returns NULL, [Randy Terbush]
    *) block_alarms() to avoid leaking the DBM* in dbm auth (this should
       be unnecessary if I go to the revised timeout-handling scheme).
       [Robert Thau]
    *) For NCSA bug-compatibility, set QUERY_STRING env var (to a null
       string) even if none came in with the request.  [Robert Thau]
    *) CHANGES file added to distribution ;-).
  Changes with Shambhala 0.4.5
    *) mod_dld --- early dynamic loading support [rst]
    *) Add wildcard content handlers for XBITHACK; default_hander now
       invoked with that mechanism (as a handler hanging off mod_core) [rst]
    *) XBITHACK supported as a wildcard content-handler, and 
       configurable at run-time (not just at compile time, as in the
       "patchy server" releases) [rst]
  Changes with Shambhala 0.4.4                                     30 Jun 1995
    *) Fixed basic thinkos in mod_dbm_auth.c [rst, reported by Mark Cox]
    *) Handle Addtype x/y .z [rst, reported by Cox]
  Changes with Shambhala 0.4.3
    *) Fixed very dumb bug in mod_alias; "Alias" and "Redirect" are not
       synonymous [rst, terbush]
  Changes with Shambhala 0.4.1                                     28 Jun 1995
    *) First-cut virtual host implementation; some refit in the config
       reading code, and log management, was necessary to support this [rst]
    *) Sub-pool machinery, originally added to avoid excessive storage
       allocation on listings of large directories (which turned out to
       be the problem that the 0.3 storage accounting was added to
       find).  Subrequests and mod_dir changed to use subpools.  [rst]
    *) More memory debugging --- free list consistency checks. [rst]
    *) Added err_headers to request_rec, with support elsewhere [rst]
    *) Other fixes to minor bugs in mod_dir and mod_includes [rst, terbush]
  Changes with Shambhala 0.3                                       19 Jun 1995
    *) Switch ONE_PROCESS to a runtime command-line option (-X)
    *) Don't compile in mod_ai_backcompat by default
    *) Switch name of server from Apache to Shambhala in Makefile
    *) Add some accounting routines to track memory usage in the pools,
       for debugging
  Changes with Shambhala 0.2
    *) Set DOCUMENT_ROOT CGI variable
    *) Add single-process debugging, as a compile-time option (ONE_PROCESS)
    *) Add critical section protection to handling of cleanup structures 
       in alloc.c [rst]
    *) Significant code reorg within the server core to group related
       functions together [rst]
    *) Correctly handle clients that hang up before sending any request
    *) Replace dying child processes. [rst]
  Changes with Shambhala 0.1                                       12 Jun 1995
     Major rewrite of the pre-existing "patchy server" codebase, by
     Robert Thau (rst).  Significant portions of the server code, such
     as configuration-file handling and HTTP authentication support,
     were ripped out and rewritten from scratch.  Code that was not
     completely rewritten was significantly altered.
     Major changes with this release include:
     *) Introduction of the module API; in request handling, the central 
        machinery just dispatches to various modules, which actually do
        most of the work.  Configuration handling is similar --- modules
        declare their own commands, and the central machinery just
        dispatches to them.  
        API features from shambhala/0.1 were substantially unchanged in
        Apache 1.0 and 1.1.  (1.0 API features not yet present in this
        release, such as wildcard handlers and subpools, were added in
        subsequent Shambhala releases, and were also generally rst's
     *) This release included the following modules:
        mod_access      (access control --- allow and deny directives),
        mod_alias       (Alias and Redirect commands),
        mod_auth        (straight HTTP authentication, based on flat-files)
        mod_auth_dbm    (same, with dbm files)
        mod_cgi         (CGI scripts and, in this release, ScriptAlias)
        mod_common_log  (CLF access logs; later renamed mod_log_common)
        mod_dir         (directory indexing)
        mod_include     (server-side includes)
        mod_mime        (AddType directives)
        mod_negotiation (content negotiation)
        mod_userdir     (support for users' public_html directories)
        It also included a mod_ai_backcompat, which was a private hack
        for back-compatibility with rst's own AI-lab servers.
        All of these modules were substantially complete, and functional 
        or nearly so (a few, which implemented features not in use at
        Thau's site, required patches of a few lines).
     *) sub-request machinery, to allow modules to determine how other
        modules would assign MIME types to a given file, or optionally
        serve its content (this is heavily used by mod_dir, mod_include
        and mod_negotiation).
     *) Resource pool system for keeping track of memory allocated and
        files opened in service of a particular request.  Much of the
        code in the modules (when they weren't rewrites) was adjusted to 
        replace a pervasive convention of using fixed-size buffers on
        the stack with an equally pervasive convention of using memory
        allocated with palloc().
     *) Reorganization of data structures associated with a given
        request to eliminate use of global variables and the troublesome 
        unmunge_name function (used in NCSA and early Apache releases to 
        attempt to determine the URI which mapped to a given filename
        --- a difficult proposition, given that it is easy to produce
        setups in which multiple URIs map to the same file).
     *) Source files renamed and rearranged
     *) Very simple pre-forking behavior --- parent process forked off a 
        fixed number of children, and then just waited for SIGHUP.
     *) Other more minor changes too numerous to list.
     This release included modified versions of a lot of code from the
     Apache 0.6.4 public release, plus an early pre-forking patch
     codeveloped by Robert Thau and Rob Hartill.
  Changes with Apache 0.7.3                                        20 Jun 1995
     *) There were a bunch of changes between Apache 0.6.4 and 0.7.3 that
        were incorporated by Rob Hartill on the main branch while Robert Thau
        worked on the Shambhala rewrite above.  Most were merged into the
        Shambala architecture after Apache 0.8.0.
  Changes with Apache 0.6.4                                        13 May 1995
     *) Patches by Rob Hartill, Cliff Skolnick, Randy Terbush, Robert Thau,
        and others.
  Changes with Apache 0.5.1                                        10 Apr 1995
  Changes with Apache 0.4                                          02 Apr 1995
    *) Patches by Brian Behlendorf, Andrew Wilson, Robert Thau,
       and Rob Hartill.
  Changes with Apache 0.3                                          24 Mar 1995
    *) Patches by Robert Thau, David Robinson, Rob Hartill, and
       Carlos Varela.
  Changes with Apache 0.2                                          18 Mar 1995
    *) Based on NCSA httpd 1.3 by Rob McCool and patches by CERT,
       Roy Fielding, Robert Thau, Nicolas Pioch, David Robinson,
       Brian Behlendorf, Rob Hartill, and Cliff Skolnick.

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