[Bugs] [Bug 1368138] Crash of glusterd when using long username with geo-replication

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1368138



--- Comment #3 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: http://review.gluster.org/16053 committed in master by Atin Mukherjee
(amukherj at redhat.com) 
------
commit 41a71b47f75a52f50ad2754cce679407ebade767
Author: Kotresh HR <khiremat at redhat.com>
Date:   Wed Dec 7 07:36:19 2016 -0500

    glusterd/geo-rep: Fix glusterd crash

    Problem:
    glusterd crashes when geo-rep mountbroker setup is
    created if the slave user length is more than
    8 characters.

    Cause:
    _POSIX_LOGIN_NAME_MAX is used which is 9 including
    NULL byte.

    Analysis:
    While the man page says it sufficient for portability, but
    acutally it's not. Linux allows the creation of username
    upto 32 characters by default where the max length is 256.
    And NetBSD's max is 17.

    Linux:
      #getconf LOGIN_NAME_MAX
       256
    NetBSD:
      #getconf LOGIN_NAME_MAX
       17

    Fix:
    Use LOGIN_NAME_MAX instead of _POSIX_LOGIN_NAME_MAX

    Change-Id: I26b7230433ecbbed6e6914ed39221a478c0266a8
    BUG: 1368138
    Signed-off-by: Kotresh HR <khiremat at redhat.com>
    Reviewed-on: http://review.gluster.org/16053
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Reviewed-by: Aravinda VK <avishwan at redhat.com>
    Reviewed-by: Atin Mukherjee <amukherj at redhat.com>

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