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From "Mladen Turk (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DAEMON-242) jsvc cannot find libcap.so on debian-based distributions
Date Thu, 23 Feb 2012 07:13:48 GMT

    [ https://issues.apache.org/jira/browse/DAEMON-242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13214407#comment-13214407
] 

Mladen Turk commented on DAEMON-242:
------------------------------------

Right, I was afraid that this feature would be actually useless in many cases.
The amount of possibilities is endless so it seems that a loop will be needed.


                
> 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
>
> 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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