Check origin of roster pushes MCabber is vulnerable to roster push attacks as described by Daniel Gultsch at https://gultsch.de/gajim_roster_push_and_message_interception.html. This patch should fix the problem by checking the sender of the iq:roster stanzas. Thanks to Sam Whited for the report.

#! /bin/sh

libtoolize --force --automake --copy
aclocal -I macros/
autoheader
autoconf
automake -a --copy