pidgin/pidgin

Prevent spoofing of iq replies by verifying that the 'from' address
release-2.x.y
2014-01-12, Mark Doliner
93d4bff19574
Prevent spoofing of iq replies by verifying that the 'from' address
matches the 'to' address of the iq request.

This full extent of this problem was realized by Thijs Alkemade, while
investigating a problem reported to us by Fabian Yamaguchi and Christian
Wressnegger of the University of Goettingen)

This change was created by Thijs Alkemade, with small shuffling and
variable renaming by me.
/*
* @file version.c Version Functions
* @ingroup core
*/
/* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "internal.h"
#include "version.h"
const guint purple_major_version = PURPLE_MAJOR_VERSION;
const guint purple_minor_version = PURPLE_MINOR_VERSION;
const guint purple_micro_version = PURPLE_MICRO_VERSION;
const char *purple_version_check(guint required_major, guint required_minor, guint required_micro)
{
if (required_major > PURPLE_MAJOR_VERSION)
return "libpurple version too old (major mismatch)";
if (required_major < PURPLE_MAJOR_VERSION)
return "libpurple version too new (major mismatch)";
if (required_minor > PURPLE_MINOR_VERSION)
return "libpurple version too old (minor mismatch)";
if ((required_minor == PURPLE_MINOR_VERSION) && (required_micro > PURPLE_MICRO_VERSION))
return "libpurple version too old (micro mismatch)";
return NULL;
}