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From bo...@apache.org
Subject svn commit: r747990 - in /apr/apr/trunk: ./ file_io/netware/ file_io/unix/ include/arch/unix/ network_io/unix/ poll/unix/
Date Thu, 26 Feb 2009 02:41:22 GMT
Author: bojan
Date: Thu Feb 26 02:41:21 2009
New Revision: 747990

URL: http://svn.apache.org/viewvc?rev=747990&view=rev
Log:
Set CLOEXEC flags where appropriate. Either use new O_CLOEXEC flag and
associated functions, such as dup3(), accept4(), epoll_create1() etc., or
simply set CLOEXEC flag using fcntl().
PR 46425.

Modified:
    apr/apr/trunk/configure.in
    apr/apr/trunk/file_io/netware/mktemp.c
    apr/apr/trunk/file_io/unix/filedup.c
    apr/apr/trunk/file_io/unix/mktemp.c
    apr/apr/trunk/file_io/unix/open.c
    apr/apr/trunk/include/arch/unix/apr_arch_inherit.h
    apr/apr/trunk/network_io/unix/sockets.c
    apr/apr/trunk/poll/unix/epoll.c
    apr/apr/trunk/poll/unix/kqueue.c
    apr/apr/trunk/poll/unix/pollset.c
    apr/apr/trunk/poll/unix/port.c

Modified: apr/apr/trunk/configure.in
URL: http://svn.apache.org/viewvc/apr/apr/trunk/configure.in?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/configure.in (original)
+++ apr/apr/trunk/configure.in Thu Feb 26 02:41:21 2009
@@ -775,6 +775,23 @@
    AC_DEFINE([HAVE_EPOLL], 1, [Define if the epoll interface is supported])
 fi
 
+dnl ----------------------------- Checking for extended file descriptor handling
+AC_CHECK_FUNCS(dup3 accept4 epoll_create1)
+
+AC_CACHE_CHECK([for SOCK_CLOEXEC support], [apr_cv_sock_cloexec],
+[AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main()
+{
+    return socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0) == -1;
+}], [apr_cv_sock_cloexec=yes], [apr_cv_sock_cloexec=no], [apr_cv_sock_cloexec=no])])
+
+if test "$apr_cv_sock_cloexec" = "yes"; then
+   AC_DEFINE([HAVE_SOCK_CLOEXEC], 1, [Define if the SOCK_CLOEXEC flag is supported])
+fi
+
 dnl ----------------------------- Checking for missing POSIX thread functions
 AC_CHECK_FUNCS([getpwnam_r getpwuid_r getgrnam_r getgrgid_r])
 

Modified: apr/apr/trunk/file_io/netware/mktemp.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/file_io/netware/mktemp.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/file_io/netware/mktemp.c (original)
+++ apr/apr/trunk/file_io/netware/mktemp.c Thu Feb 26 02:41:21 2009
@@ -19,6 +19,7 @@
 #include "apr_strings.h" /* prototype of apr_mkstemp() */
 #include "apr_arch_file_io.h" /* prototype of apr_mkstemp() */
 #include "apr_portable.h" /* for apr_os_file_put() */
+#include "apr_arch_inherit.h"
 
 #include <stdlib.h> /* for mkstemp() - Single Unix */
 
@@ -43,6 +44,7 @@
 
 
 	if (!(flags & APR_FILE_NOCLEANUP)) {
+            APR_SET_FD_CLOEXEC((*fp)->filedes);
 	    apr_pool_cleanup_register((*fp)->pool, (void *)(*fp),
 				      apr_unix_file_cleanup,
 				      apr_unix_child_file_cleanup);

Modified: apr/apr/trunk/file_io/unix/filedup.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/file_io/unix/filedup.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/file_io/unix/filedup.c (original)
+++ apr/apr/trunk/file_io/unix/filedup.c Thu Feb 26 02:41:21 2009
@@ -24,14 +24,25 @@
                              apr_file_t *old_file, apr_pool_t *p,
                              int which_dup)
 {
-    int rv;
+    int rv, flags = 0;
     
     if (which_dup == 2) {
         if ((*new_file) == NULL) {
             /* We can't dup2 unless we have a valid new_file */
             return APR_EINVAL;
         }
+#ifdef HAVE_DUP3
+        if (!(old_file->flags & APR_INHERIT))
+            flags |= O_CLOEXEC;
+        rv = dup3(old_file->filedes, (*new_file)->filedes, flags);
+#else
         rv = dup2(old_file->filedes, (*new_file)->filedes);
+        if (!(old_file->flags & APR_INHERIT)) {
+            if (rv == -1)
+                return errno;
+            APR_SET_FD_CLOEXEC((*new_file)->filedes);
+        }
+#endif
     } else {
         rv = dup(old_file->filedes);
     }

Modified: apr/apr/trunk/file_io/unix/mktemp.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/file_io/unix/mktemp.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/file_io/unix/mktemp.c (original)
+++ apr/apr/trunk/file_io/unix/mktemp.c Thu Feb 26 02:41:21 2009
@@ -51,6 +51,7 @@
 #include "apr_strings.h" /* prototype of apr_mkstemp() */
 #include "apr_arch_file_io.h" /* prototype of apr_mkstemp() */
 #include "apr_portable.h" /* for apr_os_file_put() */
+#include "apr_arch_inherit.h"
 
 #ifndef HAVE_MKSTEMP
 
@@ -203,6 +204,7 @@
     (*fp)->fname = apr_pstrdup(p, template);
 
     if (!(flags & APR_FILE_NOCLEANUP)) {
+        APR_SET_FD_CLOEXEC(fd);
         apr_pool_cleanup_register((*fp)->pool, (void *)(*fp),
                                   apr_unix_file_cleanup,
                                   apr_unix_child_file_cleanup);

Modified: apr/apr/trunk/file_io/unix/open.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/file_io/unix/open.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/file_io/unix/open.c (original)
+++ apr/apr/trunk/file_io/unix/open.c Thu Feb 26 02:41:21 2009
@@ -127,7 +127,15 @@
         oflags |= O_BINARY;
     }
 #endif
-    
+
+#ifdef O_CLOEXEC
+    /* Introduced in Linux 2.6.23. Silently ignored on earlier Linux kernels.
+     */
+    if (!(flag & APR_FILE_NOCLEANUP)) {
+        oflags |= O_CLOEXEC;
+}
+#endif
+ 
 #if APR_HAS_LARGE_FILES && defined(_LARGEFILE64_SOURCE)
     oflags |= O_LARGEFILE;
 #elif defined(O_LARGEFILE)
@@ -155,6 +163,9 @@
     if (fd < 0) {
        return errno;
     }
+    if (!(flag & APR_FILE_NOCLEANUP)) {
+	APR_SET_FD_CLOEXEC(fd);
+    }
 
     (*new) = (apr_file_t *)apr_pcalloc(pool, sizeof(apr_file_t));
     (*new)->pool = pool;
@@ -337,6 +348,7 @@
         return APR_EINVAL;
     }
     if (thefile->flags & APR_INHERIT) {
+        APR_SET_FD_CLOEXEC(thefile->filedes);
         thefile->flags &= ~APR_INHERIT;
         apr_pool_child_cleanup_set(thefile->pool,
                                    (void *)thefile,

Modified: apr/apr/trunk/include/arch/unix/apr_arch_inherit.h
URL: http://svn.apache.org/viewvc/apr/apr/trunk/include/arch/unix/apr_arch_inherit.h?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/include/arch/unix/apr_arch_inherit.h (original)
+++ apr/apr/trunk/include/arch/unix/apr_arch_inherit.h Thu Feb 26 02:41:21 2009
@@ -27,6 +27,12 @@
     if (the##name->flag & APR_FILE_NOCLEANUP)                       \
         return APR_EINVAL;                                          \
     if (!(the##name->flag & APR_INHERIT)) {                         \
+        int flags = fcntl(the##name->name##des, F_GETFD);           \
+        if (flags == -1)                                            \
+            return errno;                                           \
+        flags &= ~(FD_CLOEXEC);                                     \
+        if (fcntl(the##name->name##des, F_SETFD, flags) == -1)      \
+            return errno;                                           \
         the##name->flag |= APR_INHERIT;                             \
         apr_pool_child_cleanup_set(the##name->pool,                 \
                                    (void *)the##name,               \
@@ -35,12 +41,23 @@
     return APR_SUCCESS;                                             \
 }
 
+#define APR_SET_FD_CLOEXEC(fd)                                      \
+do {                                                                \
+    int flags;                                                      \
+    if ((flags = fcntl(fd, F_GETFD)) == -1)                         \
+        return errno;                                               \
+    flags |= FD_CLOEXEC;                                            \
+    if (fcntl(fd, F_SETFD, flags) == -1)                            \
+        return errno;                                               \
+} while (0)
+
 #define APR_IMPLEMENT_INHERIT_UNSET(name, flag, pool, cleanup)      \
 apr_status_t apr_##name##_inherit_unset(apr_##name##_t *the##name)  \
 {                                                                   \
     if (the##name->flag & APR_FILE_NOCLEANUP)                       \
         return APR_EINVAL;                                          \
     if (the##name->flag & APR_INHERIT) {                            \
+        APR_SET_FD_CLOEXEC(the##name->name##des);                   \
         the##name->flag &= ~APR_INHERIT;                            \
         apr_pool_child_cleanup_set(the##name->pool,                 \
                                    (void *)the##name,               \

Modified: apr/apr/trunk/network_io/unix/sockets.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/network_io/unix/sockets.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/network_io/unix/sockets.c (original)
+++ apr/apr/trunk/network_io/unix/sockets.c Thu Feb 26 02:41:21 2009
@@ -108,9 +108,13 @@
 apr_status_t apr_socket_create(apr_socket_t **new, int ofamily, int type,
                                int protocol, apr_pool_t *cont)
 {
-    int family = ofamily;
+    int family = ofamily, flags = 0;
     int oprotocol = protocol;
 
+#ifdef HAVE_SOCK_CLOEXEC
+    flags |= SOCK_CLOEXEC;
+#endif
+
     if (family == APR_UNSPEC) {
 #if APR_HAVE_IPV6
         family = APR_INET6;
@@ -126,19 +130,19 @@
     alloc_socket(new, cont);
 
 #ifndef BEOS_R5
-    (*new)->socketdes = socket(family, type, protocol);
+    (*new)->socketdes = socket(family, type|flags, protocol);
 #else
     /* For some reason BeOS R5 has an unconventional protocol numbering,
      * so we need to translate here. */
     switch (protocol) {
     case 0:
-        (*new)->socketdes = socket(family, type, 0);
+        (*new)->socketdes = socket(family, type|flags, 0);
         break;
     case APR_PROTO_TCP:
-        (*new)->socketdes = socket(family, type, IPPROTO_TCP);
+        (*new)->socketdes = socket(family, type|flags, IPPROTO_TCP);
         break;
     case APR_PROTO_UDP:
-        (*new)->socketdes = socket(family, type, IPPROTO_UDP);
+        (*new)->socketdes = socket(family, type|flags, IPPROTO_UDP);
         break;
     case APR_PROTO_SCTP:
     default:
@@ -151,7 +155,7 @@
 #if APR_HAVE_IPV6
     if ((*new)->socketdes < 0 && ofamily == APR_UNSPEC) {
         family = APR_INET;
-        (*new)->socketdes = socket(family, type, protocol);
+        (*new)->socketdes = socket(family, type|flags, protocol);
     }
 #endif
 
@@ -160,6 +164,10 @@
     }
     set_socket_vars(*new, family, type, oprotocol);
 
+#ifndef HAVE_SOCK_CLOEXEC
+    APR_SET_FD_CLOEXEC((*new)->socketdes);
+#endif
+
     (*new)->timeout = -1;
     (*new)->inherit = 0;
     apr_pool_cleanup_register((*new)->pool, (void *)(*new), socket_cleanup,
@@ -218,7 +226,11 @@
 
     sa.salen = sizeof(sa.sa);
 
+#ifdef HAVE_ACCEPT4
+    s = accept4(sock->socketdes, (struct sockaddr *)&sa.sa, &sa.salen, SOCK_CLOEXEC);
+#else
     s = accept(sock->socketdes, (struct sockaddr *)&sa.sa, &sa.salen);
+#endif
 
     if (s < 0) {
         return errno;
@@ -300,6 +312,10 @@
         (*new)->local_interface_unknown = 1;
     }
 
+#ifndef HAVE_ACCEPT4
+    APR_SET_FD_CLOEXEC((*new)->socketdes);
+#endif
+
     (*new)->inherit = 0;
     apr_pool_cleanup_register((*new)->pool, (void *)(*new), socket_cleanup,
                               socket_cleanup);

Modified: apr/apr/trunk/poll/unix/epoll.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/poll/unix/epoll.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/poll/unix/epoll.c (original)
+++ apr/apr/trunk/poll/unix/epoll.c Thu Feb 26 02:41:21 2009
@@ -21,6 +21,7 @@
 #include "apr_arch_file_io.h"
 #include "apr_arch_networkio.h"
 #include "apr_arch_poll_private.h"
+#include "apr_arch_inherit.h"
 
 #if defined(HAVE_EPOLL)
 
@@ -95,12 +96,20 @@
     apr_status_t rv;
     int fd;
 
+#ifdef HAVE_EPOLL_CREATE1
+    fd = epoll_create1(EPOLL_CLOEXEC);
+#else
     fd = epoll_create(size);
+#endif
     if (fd < 0) {
         pollset->p = NULL;
         return apr_get_netos_error();
     }
 
+#ifndef HAVE_EPOLL_CREATE1
+    APR_SET_FD_CLOEXEC(fd);
+#endif
+
     pollset->p = apr_palloc(p, sizeof(apr_pollset_private_t));
 #if APR_HAS_THREADS
     if ((flags & APR_POLLSET_THREADSAFE) &&
@@ -319,15 +328,23 @@
 {
     int fd;
     
+#ifdef HAVE_EPOLL_CREATE1
+    fd = epoll_create1(EPOLL_CLOEXEC);
+#else
     fd = epoll_create(size);
+#endif
     
     if (fd < 0) {
         return apr_get_netos_error();
     }
+
+#ifndef HAVE_EPOLL_CREATE1
+    APR_SET_FD_CLOEXEC(fd);
+#endif
     
     pollcb->fd = fd;
     pollcb->pollset.epoll = apr_palloc(p, size * sizeof(struct epoll_event));
-    apr_pool_cleanup_register(p, pollcb, cb_cleanup, cb_cleanup);
+    apr_pool_cleanup_register(p, pollcb, cb_cleanup, apr_pool_cleanup_null);
 
     return APR_SUCCESS;
 }

Modified: apr/apr/trunk/poll/unix/kqueue.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/poll/unix/kqueue.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/poll/unix/kqueue.c (original)
+++ apr/apr/trunk/poll/unix/kqueue.c Thu Feb 26 02:41:21 2009
@@ -21,6 +21,7 @@
 #include "apr_arch_file_io.h"
 #include "apr_arch_networkio.h"
 #include "apr_arch_poll_private.h"
+#include "apr_arch_inherit.h"
 
 #ifdef HAVE_KQUEUE
 
@@ -98,6 +99,8 @@
         return apr_get_netos_error();
     }
 
+    APR_SET_FD_CLOEXEC(pollset->p->kqueue_fd);
+
     pollset->p->result_set = apr_palloc(p, size * sizeof(apr_pollfd_t));
 
     APR_RING_INIT(&pollset->p->query_ring, pfd_elem_t, link);
@@ -312,10 +315,12 @@
     if (fd < 0) {
         return apr_get_netos_error();
     }
-    
+
+    APR_SET_FD_CLOEXEC(fd);
+ 
     pollcb->fd = fd;
     pollcb->pollset.ke = (struct kevent *)apr_pcalloc(p, size * sizeof(struct kevent));
-    apr_pool_cleanup_register(p, pollcb, cb_cleanup, cb_cleanup);
+    apr_pool_cleanup_register(p, pollcb, cb_cleanup, apr_pool_cleanup_null);
     
     return APR_SUCCESS;
 }

Modified: apr/apr/trunk/poll/unix/pollset.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/poll/unix/pollset.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/poll/unix/pollset.c (original)
+++ apr/apr/trunk/poll/unix/pollset.c Thu Feb 26 02:41:21 2009
@@ -26,6 +26,7 @@
 #include "apr_arch_file_io.h"
 #include "apr_arch_networkio.h"
 #include "apr_arch_poll_private.h"
+#include "apr_arch_inherit.h"
 
 static apr_pollset_method_e pollset_default_method = POLLSET_DEFAULT_METHOD;
 
@@ -87,6 +88,10 @@
     fd.reqevents = APR_POLLIN;
     fd.desc_type = APR_POLL_FILE;
     fd.desc.f = pollset->wakeup_pipe[0];
+
+    APR_SET_FD_CLOEXEC(pollset->wakeup_pipe[0]->filedes);
+    APR_SET_FD_CLOEXEC(pollset->wakeup_pipe[1]->filedes);
+
     /* Add the pipe to the pollset
      */
     return apr_pollset_add(pollset, &fd);

Modified: apr/apr/trunk/poll/unix/port.c
URL: http://svn.apache.org/viewvc/apr/apr/trunk/poll/unix/port.c?rev=747990&r1=747989&r2=747990&view=diff
==============================================================================
--- apr/apr/trunk/poll/unix/port.c (original)
+++ apr/apr/trunk/poll/unix/port.c Thu Feb 26 02:41:21 2009
@@ -22,6 +22,7 @@
 #include "apr_arch_file_io.h"
 #include "apr_arch_networkio.h"
 #include "apr_arch_poll_private.h"
+#include "apr_arch_inherit.h"
 
 #if defined(HAVE_PORT_CREATE)
 
@@ -125,6 +126,8 @@
         return APR_ENOMEM;
     }
 
+    APR_SET_FD_CLOEXEC(pollset->p->port_fd);
+
     pollset->p->result_set = apr_palloc(p, size * sizeof(apr_pollfd_t));
 
     APR_RING_INIT(&pollset->p->query_ring, pfd_elem_t, link);
@@ -395,8 +398,10 @@
         return apr_get_netos_error();
     }
 
+    APR_SET_FD_CLOEXEC(fd);
+
     pollcb->pollset.port = apr_palloc(p, size * sizeof(port_event_t));
-    apr_pool_cleanup_register(p, pollcb, cb_cleanup, cb_cleanup);
+    apr_pool_cleanup_register(p, pollcb, cb_cleanup, apr_pool_cleanup_null);
 
     return APR_SUCCESS;
 }



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