glibc/posix/spawn_faction_init.c
Adhemerval Zanella 2a973ab7f1 posix: Add internal symbols for posix_spawn interface
This patch adds internal hidden definition for mostly of the posix_spawn
function so it can be used internally on both popen and system
implementations.

Checked on x86_64-linux-gnu.

	* include/spawn.h (__posix_spawn, posix_spawn_file_actions_addclose,
	__posix_spawn_file_actions_adddup2, __posix_spawn_file_actions_destroy,
	__posix_spawn_file_actions_init, __posix_spawnattr_init,
	__posix_spawnattr_destroy, __posix_spawnattr_setflags,
	__posix_spawnattr_setsigdefault, __posix_spawnattr_setsigmask): New
	prototype.
	* posix/spawn.c (__posix_spawn): Add libc_hidden_def.
	* posix/spawn_faction_addclose.c
	(__posix_spawn_file_actions_addclose): Add hidden definition.
	* posix/spawn_faction_adddup2.c
	(__posix_spawn_file_actions_adddup2): Likewise.
	* posix/spawn_faction_destroy.c
	(__posix_spawn_file_actions_destroy): Likewise.
	* posix/spawn_faction_init.c (__posix_spawn_file_actions_init):
	Likewise.
	* posix/spawnattr_destroy.c (__posix_spawnattr_destroy): Likewise.
	* posix/spawnattr_init.c (__posix_spawnattr_init): Likewise.
	* posix/spawnattr_setdefault.c (__posix_spawnattr_setsigdefault):
	Likewise.
	* posix/spawnattr_setflags.c (__posix_spawnattr_setflags): Likewise.
	* posix/spawnattr_setsigmask.c (__posix_spawnattr_setsigmask):
	Likewise.
2018-10-24 15:22:27 -03:00

55 lines
1.7 KiB
C

/* Copyright (C) 2000-2018 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)