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3a3fb755 FW |
1 | /* Add a directory change to a file action list for posix_spawn. |
2 | Copyright (C) 2000-2018 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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <errno.h> | |
20 | #include <spawn.h> | |
21 | #include <string.h> | |
22 | ||
23 | #include "spawn_int.h" | |
24 | ||
25 | int | |
26 | posix_spawn_file_actions_addfchdir_np (posix_spawn_file_actions_t *actions, | |
27 | int fd) | |
28 | { | |
29 | struct __spawn_action *rec; | |
30 | ||
31 | /* Allocate more memory if needed. */ | |
32 | if (actions->__used == actions->__allocated | |
33 | && __posix_spawn_file_actions_realloc (actions) != 0) | |
34 | /* This can only mean we ran out of memory. */ | |
35 | return ENOMEM; | |
36 | ||
37 | /* Add the new value. */ | |
38 | rec = &actions->__actions[actions->__used]; | |
39 | rec->tag = spawn_do_fchdir; | |
40 | rec->action.fchdir_action.fd = fd; | |
41 | ||
42 | /* Account for the new entry. */ | |
43 | ++actions->__used; | |
44 | ||
45 | return 0; | |
46 | } |