[Bugs] [Bug 1611115] avoid possible glusterd crash in glusterd_verify_slave

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1611115

Worker Ant <bugzilla-bot at gluster.org> changed:

           What    |Removed                     |Added
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             Status|POST                        |MODIFIED



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/20614 committed in release-4.1 by
"Shyamsundar Ranganathan" <srangana at redhat.com> with a commit message- geo-rep
: fix possible crash

Problem : In 'glusterd_verify_slave' while tokenizing error message
          we call 'strtok_r' and store return value in 'tmp' which
          can be NULL. We are passing this 'tmp' as 1st argument to
          'strcmp' which will lead to segmentation fault.
Solution : before calling 'strcmp' we should NULL check 'tmp'.

Backport of:
 > Change-Id: Ifd3864b904afe6cd09d9e5a4b55c6d0578e22b9d
 > BUG: 1602121
 > Signed-off-by: Sunny Kumar <sunkumar at redhat.com>

Change-Id: Ifd3864b904afe6cd09d9e5a4b55c6d0578e22b9d
fixes: bz#1611115
Signed-off-by: Sunny Kumar <sunkumar at redhat.com>

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