1/* Internal definitions for posix_spawn functionality.
2 Copyright (C) 2000-2023 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 spawn_do_tcsetpgrp
38 } tag;
39
40 union
41 {
42 struct
43 {
44 int fd;
45 } close_action;
46 struct
47 {
48 int fd;
49 int newfd;
50 } dup2_action;
51 struct
52 {
53 int fd;
54 char *path;
55 int oflag;
56 mode_t mode;
57 } open_action;
58 struct
59 {
60 char *path;
61 } chdir_action;
62 struct
63 {
64 int fd;
65 } fchdir_action;
66 struct
67 {
68 int from;
69 } closefrom_action;
70 struct
71 {
72 int fd;
73 } setpgrp_action;
74 } action;
75};
76
77#define SPAWN_XFLAGS_USE_PATH 0x1
78#define SPAWN_XFLAGS_TRY_SHELL 0x2
79
80extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t *
81 file_actions)
82 attribute_hidden;
83
84extern int __spawni (pid_t *pid, const char *path,
85 const posix_spawn_file_actions_t *file_actions,
86 const posix_spawnattr_t *attrp, char *const argv[],
87 char *const envp[], int xflags) attribute_hidden;
88
89/* Return true if FD falls into the range valid for file descriptors.
90 The check in this form is mandated by POSIX. */
91bool __spawn_valid_fd (int fd) attribute_hidden;
92
93#endif /* _SPAWN_INT_H */
94