58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Add a closefrom to a file action list for posix_spawn.
|
|
Copyright (C) 2021-2022 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <spawn.h>
|
|
#include <unistd.h>
|
|
#include <spawn_int.h>
|
|
|
|
int
|
|
__posix_spawn_file_actions_addclosefrom (posix_spawn_file_actions_t
|
|
*file_actions, int from)
|
|
{
|
|
#if __SPAWN_SUPPORT_CLOSEFROM
|
|
struct __spawn_action *rec;
|
|
|
|
if (!__spawn_valid_fd (from))
|
|
return EBADF;
|
|
|
|
/* Allocate more memory if needed. */
|
|
if (file_actions->__used == file_actions->__allocated
|
|
&& __posix_spawn_file_actions_realloc (file_actions) != 0)
|
|
/* This can only mean we ran out of memory. */
|
|
return ENOMEM;
|
|
|
|
/* Add the new value. */
|
|
rec = &file_actions->__actions[file_actions->__used];
|
|
rec->tag = spawn_do_closefrom;
|
|
rec->action.closefrom_action.from = from;
|
|
|
|
/* Account for the new entry. */
|
|
++file_actions->__used;
|
|
|
|
return 0;
|
|
#else
|
|
return EINVAL;
|
|
#endif
|
|
}
|
|
weak_alias (__posix_spawn_file_actions_addclosefrom,
|
|
posix_spawn_file_actions_addclosefrom_np)
|
|
#if !__SPAWN_SUPPORT_CLOSEFROM
|
|
stub_warning (posix_spawn_file_actions_addclosefrom_np)
|
|
#endif
|