1/* Internal definitions for posix_spawn functionality.
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#ifndef _SPAWN_INT_H
20#define _SPAWN_INT_H
21
22#include <spawn.h>
23#include <stdbool.h>
24
25/* Data structure to contain the action information. */
26struct __spawn_action
27{
28 enum
29 {
30 spawn_do_close,
31 spawn_do_dup2,
32 spawn_do_open,
33 spawn_do_chdir,
34 spawn_do_fchdir,
35 } tag;
36
37 union
38 {
39 struct
40 {
41 int fd;
42 } close_action;
43 struct
44 {
45 int fd;
46 int newfd;
47 } dup2_action;
48 struct
49 {
50 int fd;
51 char *path;
52 int oflag;
53 mode_t mode;
54 } open_action;
55 struct
56 {
57 char *path;
58 } chdir_action;
59 struct
60 {
61 int fd;
62 } fchdir_action;
63 } action;
64};
65
66#define SPAWN_XFLAGS_USE_PATH 0x1
67#define SPAWN_XFLAGS_TRY_SHELL 0x2
68
69extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t *
70 file_actions)
71 attribute_hidden;
72
73extern int __spawni (pid_t *pid, const char *path,
74 const posix_spawn_file_actions_t *file_actions,
75 const posix_spawnattr_t *attrp, char *const argv[],
76 char *const envp[], int xflags) attribute_hidden;
77
78/* Return true if FD falls into the range valid for file descriptors.
79 The check in this form is mandated by POSIX. */
80bool __spawn_valid_fd (int fd) attribute_hidden;
81
82#endif /* _SPAWN_INT_H */
83