/* Copyright (C) 2000-2019 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;
}

/* Initialize data structure for file attribute for `spawn' call.  */
int __posix_spawn_file_actions_init(posix_spawn_file_actions_t* file_actions)
{
    /* Simply clear all the elements.  */
    memset(file_actions, '\0', sizeof(*file_actions));
    return 0;
}
weak_alias(__posix_spawn_file_actions_init, posix_spawn_file_actions_init)
