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From "Mladen Turk (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DAEMON-242) jsvc cannot find libcap.so on debian-based distributions
Date Thu, 23 Feb 2012 08:31:49 GMT

     [ https://issues.apache.org/jira/browse/DAEMON-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mladen Turk resolved DAEMON-242.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 1.0.10

Fixed in the svn. Will be part of 1.0.10
The fix tries to load libcap.so.2, libcap.so.1, libcap.so in that order. If libcap still cannot
be found the legacy syscall is used and error message logged.
                
> jsvc cannot find libcap.so on debian-based distributions
> --------------------------------------------------------
>
>                 Key: DAEMON-242
>                 URL: https://issues.apache.org/jira/browse/DAEMON-242
>             Project: Commons Daemon
>          Issue Type: Bug
>          Components: Jsvc
>    Affects Versions: 1.0.9
>         Environment: Debian 6.0.2
> Ubuntu 11.04
>            Reporter: Phil Clay
>             Fix For: 1.0.10
>
>
> Debian-based distributions do not symlink the "main" shared object to the major version.
> For example:
> On RHEL4u4:
> $ ls -l /lib/libcap.so*
> lrwxrwxrwx  1 root root    11 Jun 13  2007 /lib/libcap.so -> libcap.so.1
> lrwxrwxrwx  1 root root    14 Jun 12  2007 /lib/libcap.so.1 -> libcap.so.1.10
> -rwxr-xr-x  1 root root 11784 Oct  7  2006 /lib/libcap.so.1.10
> Notice libcap.so -> libcap.so.1
> On Debian 6.02:
> $ ls -l /lib/libcap.so*
> lrwxrwxrwx 1 root root    14 Jan 25 10:19 /lib/libcap.so.2 -> libcap.so.2.19
> -rw-r--r-- 1 root root 16640 Aug 16  2010 /lib/libcap.so.2.19
> On Ubuntu 11.04:
> $ ls -l /lib/libcap.so*
> lrwxrwxrwx 1 root root    14 2011-07-16 09:52 /lib/libcap.so.2 -> libcap.so.2.20
> -rw-r--r-- 1 root root 13816 2011-02-15 14:35 /lib/libcap.so.2.20
> Notice there is no libcap.so -> libcap.so.2
> Therefore, when jsvc attempts to load libcap.so, it fails...
> I see this when running jsvc -debug ...
> Attemtping to load library /lib/libcap.so
> Attemtping to load library /usr/lib/libcap.so
> failed loading capabilities library -- /usr/lib/libcap.so: cannot open shared object
file: No such file or directory.
> set_caps(CAPS) failed for user 'oncommand'
> Service exit with a return value of 4
> If I create the libcap.so -> libcap.so.2 symlink, it works.
> I'm guessing the fix for this would be to load libcap.so, libcap.so.2, libcap.so.1 in
progression to see if any work.
> (Note that I have performed the workaround I mentioned in https://issues.apache.org/jira/browse/DAEMON-241
to get this far.)

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