include/spawn.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _SPAWN_H_
  30 #define _SPAWN_H_
  31
  32 #include <sys/cdefs.h>
  33 #include <sys/_types.h>
  34 #include <sys/_sigset.h>
  35
  36 #ifndef _MODE_T_DECLARED
  37 typedef __mode_t        mode_t;
  38 #define _MODE_T_DECLARED
  39 #endif
  40
  41 #ifndef _PID_T_DECLARED
  42 typedef __pid_t         pid_t;
  43 #define _PID_T_DECLARED
  44 #endif
  45
  46 #ifndef _SIGSET_T_DECLARED
  47 #define _SIGSET_T_DECLARED
  48 typedef __sigset_t      sigset_t;
  49 #endif
  50
  51 struct sched_param;
  52
  53 typedef struct __posix_spawnattr                *posix_spawnattr_t;
  54 typedef struct __posix_spawn_file_actions       *posix_spawn_file_actions_t;
  55
  56 #define POSIX_SPAWN_RESETIDS            0x01
  57 #define POSIX_SPAWN_SETPGROUP           0x02
  58 #define POSIX_SPAWN_SETSCHEDPARAM       0x04
  59 #define POSIX_SPAWN_SETSCHEDULER        0x08
  60 #define POSIX_SPAWN_SETSIGDEF           0x10
  61 #define POSIX_SPAWN_SETSIGMASK          0x20
  62 #define POSIX_SPAWN_DISABLE_ASLR_NP     0x40
  63
  64 __BEGIN_DECLS
  65 /*
  66  * Spawn routines
  67  *
  68  * XXX both arrays should be __restrict, but this does not work when GCC
  69  * is invoked with -std=c99.
  70  */
  71 int posix_spawn(pid_t * __restrict, const char * __restrict,
  72     const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict,
  73     char * const [], char * const []);
  74 int posix_spawnp(pid_t * __restrict, const char * __restrict,
  75     const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict,
  76     char * const [], char * const []);
  77
  78 /*
  79  * File descriptor actions
  80  */
  81 int posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
  82 int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);
  83
  84 int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t * __restrict,
  85     int, const char * __restrict, int, mode_t);
  86 int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *, int, int);
  87 int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *, int);
  88
  89 #if __BSD_VISIBLE
  90 int posix_spawn_file_actions_addchdir_np(posix_spawn_file_actions_t *
  91     __restrict, const char * __restrict);
  92 int posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t *,
  93     int);
  94 int posix_spawn_file_actions_addclosefrom_np(posix_spawn_file_actions_t *,
  95     int);
  96 #endif
  97
  98 /*
  99  * Spawn attributes
 100  */
 101 int posix_spawnattr_init(posix_spawnattr_t *);
 102 int posix_spawnattr_destroy(posix_spawnattr_t *);
 103
 104 int posix_spawnattr_getflags(const posix_spawnattr_t * __restrict,
 105     short * __restrict);
 106 int posix_spawnattr_getpgroup(const posix_spawnattr_t * __restrict,
 107     pid_t * __restrict);
 108 int posix_spawnattr_getschedparam(const posix_spawnattr_t * __restrict,
 109     struct sched_param * __restrict);
 110 int posix_spawnattr_getschedpolicy(const posix_spawnattr_t * __restrict,
 111     int * __restrict);
 112 int posix_spawnattr_getsigdefault(const posix_spawnattr_t * __restrict,
 113     sigset_t * __restrict);
 114 int posix_spawnattr_getsigmask(const posix_spawnattr_t * __restrict,
 115     sigset_t * __restrict sigmask);
 116
 117 int posix_spawnattr_setflags(posix_spawnattr_t *, short);
 118 int posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t);
 119 int posix_spawnattr_setschedparam(posix_spawnattr_t * __restrict,
 120     const struct sched_param * __restrict);
 121 int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
 122 int posix_spawnattr_setsigdefault(posix_spawnattr_t * __restrict,
 123     const sigset_t * __restrict);
 124 int posix_spawnattr_setsigmask(posix_spawnattr_t * __restrict,
 125     const sigset_t * __restrict);
 126 __END_DECLS
 127
 128 #endif /* !_SPAWN_H_ */