#254 usmUser update fix for 5.0.8

[Anonymous]

Applies to net-snmp 5.0.8 on any platform

When usm_add_user_to_list() (from snmplib/snmpusm.c)
gets called with a user that already exists in the
userList, it discards the user although there may be
different credentials associated with the new user!

This especially causes problems when restarting snmpd
or snmptrapd (by SIGHUP) with updated "usmUser"
configuration in snmp[trap]d.conf. The daemon keeps the
old credentials for existing users and discards the new
credentials. Adding new users this way works fine, though.

This patch fixes this behaviour and properly adds the
new usmUser to the list.

See the net-snmp-coders discussion for further details:
<http://sourceforge.net/mailarchive/forum.php?thread_id=2903889&forum_id=7152>

Please integrate this patch (unified diff) into the
main tree ASAP.

Thanks,
Thomas

[Nobody/Anonymous]

snmpusm.c.patch

[Wes Hardaker]

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Thanks for the patch! It has been applied to the next release of
the
net-snmp package.