uclibc-ng/librt/spawn_faction_init.c

/* Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library 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.

   The GNU C 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 the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <spawn.h>
#include <stdlib.h>
#include <string.h>

#include "spawn_int.h"


/* Function used to increase the size of the allocated array.  This
   function is called from the `add'-functions.  */
int
__posix_spawn_file_actions_realloc(posix_spawn_file_actions_t *file_actions)
{
	int newalloc = file_actions->__allocated + 8;
	void *newmem = realloc(file_actions->__actions,
			       newalloc * sizeof(struct __spawn_action));

	if (newmem == NULL)
		/* Not enough memory.  */
		return ENOMEM;

	file_actions->__actions = (struct __spawn_action *)newmem;
	file_actions->__allocated = newalloc;
	return 0;
}