pidgin/pidgin

Fix a crash on shutdown in kwallet if the wallet was never opened.

The wallet instance variable was not initialized so if the wallet was never opened we were trying to delete and invalid pointer.

Also update the dispose method of the provider to close the wallet as the
tasks in the queue hold a reference to the provider instance as the source
object in their tasks.

Testing Done:
Ran locally with both the kwallet and secret service providers.

Reviewed at https://reviews.imfreedom.org/r/581/
/*
* purple
*
* File: win32dep.h
*
* Copyright (C) 2002-2003, Herman Bloggs <hermanator12002@yahoo.com>
*
* 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_WIN32_WIN32DEP_H
#define PURPLE_WIN32_WIN32DEP_H
#include <config.h>
#include <winsock2.h>
#include <windows.h>
#include <shlobj.h>
#include <process.h>
#include "wpurpleerror.h"
#include "libc_interface.h"
G_BEGIN_DECLS
/* the winapi headers don't yet have winhttp.h, so we use the struct from msdn directly */
typedef struct {
BOOL fAutoDetect;
LPWSTR lpszAutoConfigUrl;
LPWSTR lpszProxy;
LPWSTR lpszProxyBypass;
} WINHTTP_CURRENT_USER_IE_PROXY_CONFIG;
/* rpcndr.h defines small as char, causing problems, so we need to undefine it */
#undef small
/*
* PROTOS
*/
/**
** win32dep.c
**/
/* Windows helper functions */
FARPROC wpurple_find_and_loadproc(const char *dllname, const char *procedure);
gboolean wpurple_reg_val_exists(HKEY rootkey, const char *subkey, const char *valname);
gboolean wpurple_read_reg_dword(HKEY rootkey, const char *subkey, const char *valname, LPDWORD result);
char *wpurple_read_reg_string(HKEY rootkey, const char *subkey, const char *valname); /* needs to be g_free'd */
gboolean wpurple_write_reg_string(HKEY rootkey, const char *subkey, const char *valname, const char *value);
char *wpurple_escape_dirsep(const char *filename); /* needs to be g_free'd */
/* Simulate unix pipes by creating a pair of connected sockets */
int wpurple_input_pipe(int pipefd[2]);
/* Determine Purple paths */
gchar *wpurple_get_special_folder(int folder_type); /* needs to be g_free'd */
const char *wpurple_bin_dir(void);
const char *wpurple_data_dir(void);
const char *wpurple_lib_dir(const char *subdir);
const char *wpurple_locale_dir(void);
const char *wpurple_home_dir(void);
const char *wpurple_sysconf_dir(void);
/* init / cleanup */
void wpurple_init(void);
void wpurple_cleanup(void);
G_END_DECLS
#endif /* PURPLE_WIN32_WIN32DEP_H */