platform_bionic/libc/include/spawn.h
Maciej Żenczykowski 262b873dea posix_spawn - implement support for POSIX_SPAWN_CLOEXEC_DEFAULT
This new posix_spawn attribute flag marks all file descriptors
(except stdin/out/err) as close-on-exec before executing any user
registered file actions (posix_spawn_file_actions_addopen/adddup2).

Test: TreeHugger
Bug: 229913920
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: If458100d6a253a9b0348d4e93a9a610225f89615
2022-04-21 07:09:55 -07:00

92 lines
4.8 KiB
C

/*
* Copyright (C) 2017 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SPAWN_H_
#define _SPAWN_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sched.h>
#include <signal.h>
__BEGIN_DECLS
#define POSIX_SPAWN_RESETIDS 1
#define POSIX_SPAWN_SETPGROUP 2
#define POSIX_SPAWN_SETSIGDEF 4
#define POSIX_SPAWN_SETSIGMASK 8
#define POSIX_SPAWN_SETSCHEDPARAM 16
#define POSIX_SPAWN_SETSCHEDULER 32
#if defined(__USE_GNU)
#define POSIX_SPAWN_USEVFORK 64
#define POSIX_SPAWN_SETSID 128
#endif
// mark all fds (except stdin/out/err) as close-on-exec prior to executing registered file actions
#define POSIX_SPAWN_CLOEXEC_DEFAULT 256
typedef struct __posix_spawnattr* posix_spawnattr_t;
typedef struct __posix_spawn_file_actions* posix_spawn_file_actions_t;
int posix_spawn(pid_t* __pid, const char* __path, const posix_spawn_file_actions_t* __actions, const posix_spawnattr_t* __attr, char* const __argv[], char* const __env[]) __INTRODUCED_IN(28);
int posix_spawnp(pid_t* __pid, const char* __file, const posix_spawn_file_actions_t* __actions, const posix_spawnattr_t* __attr, char* const __argv[], char* const __env[]) __INTRODUCED_IN(28);
int posix_spawnattr_init(posix_spawnattr_t* __attr) __INTRODUCED_IN(28);
int posix_spawnattr_destroy(posix_spawnattr_t* __attr) __INTRODUCED_IN(28);
int posix_spawnattr_setflags(posix_spawnattr_t* __attr, short __flags) __INTRODUCED_IN(28);
int posix_spawnattr_getflags(const posix_spawnattr_t* __attr, short* __flags) __INTRODUCED_IN(28);
int posix_spawnattr_setpgroup(posix_spawnattr_t* __attr, pid_t __pgroup) __INTRODUCED_IN(28);
int posix_spawnattr_getpgroup(const posix_spawnattr_t* __attr, pid_t* __pgroup) __INTRODUCED_IN(28);
int posix_spawnattr_setsigmask(posix_spawnattr_t* __attr, const sigset_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_setsigmask64(posix_spawnattr_t* __attr, const sigset64_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_getsigmask(const posix_spawnattr_t* __attr, sigset_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_getsigmask64(const posix_spawnattr_t* __attr, sigset64_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_setsigdefault(posix_spawnattr_t* __attr, const sigset_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_setsigdefault64(posix_spawnattr_t* __attr, const sigset64_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_getsigdefault(const posix_spawnattr_t* __attr, sigset_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_getsigdefault64(const posix_spawnattr_t* __attr, sigset64_t* __mask) __INTRODUCED_IN(28);
int posix_spawnattr_setschedparam(posix_spawnattr_t* __attr, const struct sched_param* __param) __INTRODUCED_IN(28);
int posix_spawnattr_getschedparam(const posix_spawnattr_t* __attr, struct sched_param* __param) __INTRODUCED_IN(28);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t* __attr, int __policy) __INTRODUCED_IN(28);
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t* __attr, int* __policy) __INTRODUCED_IN(28);
int posix_spawn_file_actions_init(posix_spawn_file_actions_t* __actions) __INTRODUCED_IN(28);
int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t* __actions) __INTRODUCED_IN(28);
int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t* __actions, int __fd, const char* __path, int __flags, mode_t __mode) __INTRODUCED_IN(28);
int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t* __actions, int __fd) __INTRODUCED_IN(28);
int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t* __actions, int __fd, int __new_fd) __INTRODUCED_IN(28);
__END_DECLS
#endif