1/* Add a directory change to a file action list for posix_spawn.
2 Copyright (C) 2000-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <spawn.h>
21#include <string.h>
22
23#include "spawn_int.h"
24
25int
26posix_spawn_file_actions_addchdir_np (posix_spawn_file_actions_t *file_actions,
27 const char *path)
28{
29 struct __spawn_action *rec;
30
31 char *path_copy = __strdup (path);
32 if (path_copy == NULL)
33 return ENOMEM;
34
35 /* Allocate more memory if needed. */
36 if (file_actions->__used == file_actions->__allocated
37 && __posix_spawn_file_actions_realloc (file_actions) != 0)
38 {
39 /* This can only mean we ran out of memory. */
40 free (path_copy);
41 return ENOMEM;
42 }
43
44 /* Add the new value. */
45 rec = &file_actions->__actions[file_actions->__used];
46 rec->tag = spawn_do_chdir;
47 rec->action.chdir_action.path = path_copy;
48
49 /* Account for the new entry. */
50 ++file_actions->__used;
51
52 return 0;
53}
54