1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* Copyright 2022 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <wayland-util.h>
#include "os-compatibility.h"
#include "string-helpers.h"
/**
* A container for file descriptors and their string representations, designed
* to be used when forking child processes.
*
* fds[0] is generally used as the file descriptor held within the parent
* process to communicate with the child, and fds[1] as the child's counterpart.
*
* str1[] is used as a string representation of fds[1].
*/
struct fdstr {
char str1[12];
int fds[2];
};
void
fdstr_update_str1(struct fdstr *s);
void
fdstr_set_fd1(struct fdstr *s, int fd);
bool
fdstr_clear_cloexec_fd1(struct fdstr *s);
void
fdstr_close_all(struct fdstr *s);
/**
* A container for environment variables and/or process arguments, designed to
* be used when forking child processes, as setenv() and anything which
* allocates memory cannot be used between fork() and exec().
*/
struct custom_env {
struct wl_array envp;
bool env_finalized;
struct wl_array argp;
bool arg_finalized;
};
void
custom_env_init_from_environ(struct custom_env *env);
void
custom_env_fini(struct custom_env *env);
void
custom_env_set_env_var(struct custom_env *env, const char *name, const char *value);
void
custom_env_add_arg(struct custom_env *env, const char *arg);
void
custom_env_add_from_exec_string(struct custom_env *env, const char *exec_str);
char *const *
custom_env_get_envp(struct custom_env *env);
char *const *
custom_env_get_argp(struct custom_env *env);
|
