mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-07-01 07:14:39 +00:00
17331a0c7d
This initialises fdstr to 'safe' values so we can reliably deinit them. Signed-off-by: Daniel Stone <daniels@collabora.com>
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*
|
|
* 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);
|
|
|
|
#define FDSTR_INIT ((struct fdstr){ { 0 }, { -1, -1 }})
|
|
|
|
/**
|
|
* 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);
|