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/* $OpenBSD: unistd.h,v 1.20 1998/04/25 07:14:50 deraadt Exp $ */
/* $NetBSD: unistd.h,v 1.26.4.1 1996/05/28 02:31:51 mrg Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)unistd.h 5.13 (Berkeley) 6/17/91
*/
#ifndef _UNISTD_H_
#define _UNISTD_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/unistd.h>
#define STDIN_FILENO 0 /* standard input file descriptor */
#define STDOUT_FILENO 1 /* standard output file descriptor */
#define STDERR_FILENO 2 /* standard error file descriptor */
#ifndef NULL
#define NULL 0 /* null pointer constant */
#endif
__BEGIN_DECLS
__dead void _exit __P((int)) __attribute__((noreturn));
int access __P((const char *, int));
unsigned int alarm __P((unsigned int));
int chdir __P((const char *));
int chown __P((const char *, uid_t, gid_t));
int close __P((int));
size_t confstr __P((int, char *, size_t));
char *cuserid __P((char *));
int dup __P((int));
int dup2 __P((int, int));
int execl __P((const char *, const char *, ...));
int execle __P((const char *, const char *, ...));
int execlp __P((const char *, const char *, ...));
int execv __P((const char *, char * const *));
int execve __P((const char *, char * const *, char * const *));
int execvp __P((const char *, char * const *));
pid_t fork __P((void));
long fpathconf __P((int, int));
char *getcwd __P((char *, size_t));
gid_t getegid __P((void));
uid_t geteuid __P((void));
gid_t getgid __P((void));
int getgroups __P((int, gid_t *));
char *getlogin __P((void));
pid_t getpgrp __P((void));
pid_t getpid __P((void));
pid_t getppid __P((void));
uid_t getuid __P((void));
int isatty __P((int));
int link __P((const char *, const char *));
off_t lseek __P((int, off_t, int));
long pathconf __P((const char *, int));
int pause __P((void));
int pipe __P((int *));
ssize_t read __P((int, void *, size_t));
int rmdir __P((const char *));
int setgid __P((gid_t));
int setpgid __P((pid_t, pid_t));
pid_t setsid __P((void));
int setuid __P((uid_t));
unsigned int sleep __P((unsigned int));
long sysconf __P((int));
pid_t tcgetpgrp __P((int));
int tcsetpgrp __P((int, pid_t));
char *ttyname __P((int));
int unlink __P((const char *));
ssize_t write __P((int, const void *, size_t));
#ifndef _POSIX_SOURCE
/* structure timeval required for select() */
#include <sys/time.h>
int acct __P((const char *));
char *brk __P((const char *));
int chroot __P((const char *));
char *crypt __P((const char *, const char *));
int des_cipher __P((const char *, char *, long, int));
int des_setkey __P((const char *key));
int encrypt __P((char *, int));
void endusershell __P((void));
int exect __P((const char *, char * const *, char * const *));
int fchdir __P((int));
int fchown __P((int, uid_t, gid_t));
int fsync __P((int));
int ftruncate __P((int, off_t));
int getdomainname __P((char *, int));
int getdtablesize __P((void));
int getgrouplist __P((const char *, gid_t, gid_t *, int *));
long gethostid __P((void));
int gethostname __P((char *, int));
mode_t getmode __P((const void *, mode_t));
int getpagesize __P((void));
char *getpass __P((const char *));
char *getusershell __P((void));
char *getwd __P((char *)); /* obsoleted by getcwd() */
int initgroups __P((const char *, gid_t));
int iruserok __P((u_int32_t, int, const char *, const char *));
int lchown __P((const char *, uid_t, gid_t));
char *mkdtemp __P((char *));
int mkstemp __P((char *));
char *mktemp __P((char *));
int nfssvc __P((int, void *));
int nice __P((int));
void psignal __P((unsigned int, const char *));
extern __const char *__const sys_siglist[];
int profil __P((char *, size_t, unsigned long, unsigned int));
int rcmd __P((char **, int, const char *,
const char *, const char *, int *));
int rcmdsh __P((char **, int, const char *,
const char *, const char *, char *));
char *re_comp __P((const char *));
int re_exec __P((const char *));
int readlink __P((const char *, char *, size_t));
int reboot __P((int));
int revoke __P((const char *));
int rfork __P((int opts));
int rresvport __P((int *));
int ruserok __P((const char *, int, const char *, const char *));
int quotactl __P((const char *, int, int, char *));
char *sbrk __P((int));
#ifndef _XOPEN_SOURCE
int select __P((int, fd_set *, fd_set *, fd_set *, struct timeval *));
#endif
int setdomainname __P((const char *, int));
int setegid __P((gid_t));
int seteuid __P((uid_t));
int setgroups __P((int, const gid_t *));
int sethostid __P((long));
int sethostname __P((const char *, int));
int setkey __P((const char *));
int setlogin __P((const char *));
void *setmode __P((const char *));
int setpgrp __P((pid_t pid, pid_t pgrp)); /* obsoleted by setpgid() */
int setregid __P((int, int));
int setreuid __P((int, int));
int setrgid __P((gid_t));
int setruid __P((uid_t));
void setusershell __P((void));
void swab __P((const void *, void *, size_t));
int swapon __P((const char *));
int symlink __P((const char *, const char *));
void sync __P((void));
int syscall __P((int, ...));
int truncate __P((const char *, off_t));
int ttyslot __P((void));
unsigned int ualarm __P((unsigned int, unsigned int));
int undelete __P((const char *));
int usleep __P((useconds_t));
void *valloc __P((size_t)); /* obsoleted by malloc() */
pid_t vfork __P((void));
int issetugid __P((void));
int getopt __P((int, char * const *, const char *));
extern char *optarg; /* getopt(3) external variables */
extern int opterr;
extern int optind;
extern int optopt;
extern int optreset;
int getsubopt __P((char **, char * const *, char **));
extern char *suboptarg; /* getsubopt(3) external variable */
#endif /* !_POSIX_SOURCE */
#if (!defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \
!defined(_XOPEN_SOURCE)) || \
(defined(_XOPEN_SOURCE) && _XOPEN_SOURCE_EXTENDED - 0 == 1)
#define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3
int lockf __P((int, int, off_t));
#endif /* (!defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)) || ... */
__END_DECLS
#endif /* !_UNISTD_H_ */
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