pidgin/pidgin

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 internal.h Internal definitions and includes
* @ingroup core
*/
/* purple
*
* 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
*/
#ifndef _PURPLE_INTERNAL_H_
#define _PURPLE_INTERNAL_H_
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/* for SIOCGIFCONF in SKYOS */
#ifdef SKYOS
#include <net/sockios.h>
#endif
/*
* If we're using NLS, make sure gettext works. If not, then define
* dummy macros in place of the normal gettext macros.
*
* Also, the perl XS config.h file sometimes defines _ So we need to
* make sure _ isn't already defined before trying to define it.
*
* The Singular/Plural/Number ngettext dummy definition below was
* taken from an email to the texinfo mailing list by Manuel Guerrero.
* Thank you Manuel, and thank you Alex's good friend Google.
*/
#ifdef ENABLE_NLS
# include <locale.h>
# include <libintl.h>
# define _(String) ((const char *)dgettext(PACKAGE, String))
# ifdef gettext_noop
# define N_(String) gettext_noop (String)
# else
# define N_(String) (String)
# endif
#else
# include <locale.h>
# define N_(String) (String)
# ifndef _
# define _(String) ((const char *)String)
# endif
# define ngettext(Singular, Plural, Number) ((Number == 1) ? ((const char *)Singular) : ((const char *)Plural))
# define dngettext(Domain, Singular, Plural, Number) ((Number == 1) ? ((const char *)Singular) : ((const char *)Plural))
#endif
#ifdef HAVE_ENDIAN_H
# include <endian.h>
#endif
#define MSG_LEN 2048
/* The above should normally be the same as BUF_LEN,
* but just so we're explicitly asking for the max message
* length. */
#define BUF_LEN MSG_LEN
#define BUF_LONG BUF_LEN * 2
#include <sys/stat.h>
#include <sys/types.h>
#ifndef _WIN32
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/time.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_ICONV
#include <iconv.h>
#endif
#ifdef HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
#include <gmodule.h>
#ifdef PURPLE_PLUGINS
# ifdef HAVE_DLFCN_H
# include <dlfcn.h>
# endif
#endif
#ifndef _WIN32
# include <netinet/in.h>
# include <sys/socket.h>
# include <arpa/inet.h>
# include <sys/un.h>
# include <sys/utsname.h>
# include <netdb.h>
# include <signal.h>
# include <unistd.h>
#endif
#ifndef HOST_NAME_MAX
# define HOST_NAME_MAX 255
#endif
#include <glib.h>
/* This wasn't introduced until Glib 2.14 :( */
#ifndef G_MAXSSIZE
# if GLIB_SIZEOF_LONG == 8
# define G_MAXSSIZE ((gssize) 0x7fffffffffffffff)
# else
# define G_MAXSSIZE ((gssize) 0x7fffffff)
# endif
#endif
#include <glib/gstdio.h>
#ifdef _WIN32
#include "win32dep.h"
#endif
#ifdef HAVE_CONFIG_H
#if SIZEOF_TIME_T == 4
# define PURPLE_TIME_T_MODIFIER "lu"
#elif SIZEOF_TIME_T == 8
# define PURPLE_TIME_T_MODIFIER "zu"
#else
#error Unknown size of time_t
#endif
#endif
#include <glib-object.h>
/* Safer ways to work with static buffers. When using non-static
* buffers, either use g_strdup_* functions (preferred) or use
* g_strlcpy/g_strlcpy directly. */
#define purple_strlcpy(dest, src) g_strlcpy(dest, src, sizeof(dest))
#define purple_strlcat(dest, src) g_strlcat(dest, src, sizeof(dest))
#define PURPLE_WEBSITE "http://pidgin.im/"
#define PURPLE_DEVEL_WEBSITE "http://developer.pidgin.im/"
/* INTERNAL FUNCTIONS */
#include "account.h"
#include "connection.h"
/* This is for the accounts code to notify the buddy icon code that
* it's done loading. We may want to replace this with a signal. */
void
_purple_buddy_icons_account_loaded_cb(void);
/* This is for the buddy list to notify the buddy icon code that
* it's done loading. We may want to replace this with a signal. */
void
_purple_buddy_icons_blist_loaded_cb(void);
/* This is for the purple_core_migrate() code to tell the buddy
* icon subsystem about the old icons directory so it can
* migrate any icons in use. */
void
_purple_buddy_icon_set_old_icons_dir(const char *dirname);
/**
* Creates a connection to the specified account and either connects
* or attempts to register a new account. If you are logging in,
* the connection uses the current active status for this account.
* So if you want to sign on as "away," for example, you need to
* have called purple_account_set_status(account, "away").
* (And this will call purple_account_connect() automatically).
*
* @note This function should only be called by purple_account_connect()
* in account.c. If you're trying to sign on an account, use that
* function instead.
*
* @param account The account the connection should be connecting to.
* @param regist Whether we are registering a new account or just
* trying to do a normal signon.
* @param password The password to use.
*/
void _purple_connection_new(PurpleAccount *account, gboolean regist,
const char *password);
/**
* Tries to unregister the account on the server. If the account is not
* connected, also creates a new connection.
*
* @note This function should only be called by purple_account_unregister()
* in account.c.
*
* @param account The account to unregister
* @param password The password to use.
* @param cb Optional callback to be called when unregistration is complete
* @param user_data user data to pass to the callback
*/
void _purple_connection_new_unregister(PurpleAccount *account, const char *password,
PurpleAccountUnregistrationCb cb, void *user_data);
/**
* Disconnects and destroys a PurpleConnection.
*
* @note This function should only be called by purple_account_disconnect()
* in account.c. If you're trying to sign off an account, use that
* function instead.
*
* @param gc The purple connection to destroy.
*/
void _purple_connection_destroy(PurpleConnection *gc);
#endif /* _PURPLE_INTERNAL_H_ */