1/* Internal definitions for posix_spawn functionality.
2 Copyright (C) 2000-2021 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 <spawn_int_def.h>
24#include <stdbool.h>
25
26/* Data structure to contain the action information. */
27struct __spawn_action
28{
29 enum
30 {
31 spawn_do_close,
32 spawn_do_dup2,
33 spawn_do_open,
34 spawn_do_chdir,
35 spawn_do_fchdir,
36 spawn_do_closefrom,
37 } tag;
38
39 union
40 {
41 struct
42 {
43 int fd;
44 } close_action;
45 struct
46 {
47 int fd;
48 int newfd;
49 } dup2_action;
50 struct
51 {
52 int fd;
53 char *path;
54 int oflag;
55 mode_t mode;
56 } open_action;
57 struct
58 {
59 char *path;
60 } chdir_action;
61 struct
62 {
63 int fd;
64 } fchdir_action;
65 struct
66 {
67 int from;
68 } closefrom_action;
69 } action;
70};
71
72#define SPAWN_XFLAGS_USE_PATH 0x1
73#define SPAWN_XFLAGS_TRY_SHELL 0x2
74
75extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t *
76 file_actions)
77 attribute_hidden;
78
79extern int __spawni (pid_t *pid, const char *path,
80 const posix_spawn_file_actions_t *file_actions,
81 const posix_spawnattr_t *attrp, char *const argv[],
82 char *const envp[], int xflags) attribute_hidden;
83
84/* Return true if FD falls into the range valid for file descriptors.
85 The check in this form is mandated by POSIX. */
86bool __spawn_valid_fd (int fd) attribute_hidden;
87
88#endif /* _SPAWN_INT_H */
89