/*

 * Copyright (C) 2010-2012 Free Software Foundation, Inc.

 * Copyright (C) 2014 Red Hat

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * The GnuTLS is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public License

 * as published by the Free Software Foundation; either version 2.1 of

 * the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#include <config.h>

#include "gnutls_int.h"

#include "errors.h"

#include <sys/socket.h>

#include <errno.h>

#include <sys/stat.h>

#include <sys/types.h>

#include <atfork.h>

unsigned int _gnutls_forkid = 0;

#ifndef _WIN32

# ifdef HAVE_ATFORK

static void fork_handler(void)

{

	_gnutls_forkid++;

}

# endif

# if defined(HAVE___REGISTER_ATFORK)

extern int __register_atfork(void (*)(void), void(*)(void), void (*)(void), void *);

extern void *__dso_handle;

int _gnutls_register_fork_handler(void)

{

	if (__register_atfork(NULL, NULL, fork_handler, __dso_handle) != 0)

		return gnutls_assert_val(GNUTLS_E_INTERNAL_ERROR);

	return 0;

}

# else

unsigned int _gnutls_get_forkid(void)

{

	return getpid();

}

int _gnutls_detect_fork(unsigned int forkid)

{

	if ((unsigned int)getpid() == forkid)

		return 0;

	return 1;

}

/* we have to detect fork manually */

int _gnutls_register_fork_handler(void)

{

	_gnutls_forkid = getpid();

	return 0;

}

# endif

#endif /* !_WIN32 */