unistd.h revision 1.36 
1/*	$OpenBSD: unistd.h,v 1.36 2002/02/16 21:27:17 millert Exp $ */
2/*	$NetBSD: unistd.h,v 1.26.4.1 1996/05/28 02:31:51 mrg Exp $	*/
3
4/*-
5 * Copyright (c) 1991 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)unistd.h	5.13 (Berkeley) 6/17/91
37 */
38
39#ifndef _UNISTD_H_
40#define	_UNISTD_H_
41
42#include <sys/cdefs.h>
43#include <sys/types.h>
44#include <sys/unistd.h>
45
46#define	STDIN_FILENO	0	/* standard input file descriptor */
47#define	STDOUT_FILENO	1	/* standard output file descriptor */
48#define	STDERR_FILENO	2	/* standard error file descriptor */
49
50#ifndef NULL
51#ifdef 	__GNUG__
52#define	NULL	__null
53#else
54#define	NULL		0	/* null pointer constant */
55#endif
56#endif
57
58__BEGIN_DECLS
59__dead void	 _exit(int);
60int	 access(const char *, int);
61unsigned int alarm(unsigned int);
62int	 chdir(const char *);
63int	 chown(const char *, uid_t, gid_t);
64int	 close(int);
65size_t	 confstr(int, char *, size_t);
66char	*cuserid(char *);
67int	 dup(int);
68int	 dup2(int, int);
69int	 execl(const char *, const char *, ...);
70int	 execle(const char *, const char *, ...);
71int	 execlp(const char *, const char *, ...);
72int	 execv(const char *, char * const *);
73int	 execve(const char *, char * const *, char * const *);
74int	 execvp(const char *, char * const *);
75pid_t	 fork(void);
76long	 fpathconf(int, int);
77char	*getcwd(char *, size_t);
78gid_t	 getegid(void);
79uid_t	 geteuid(void);
80gid_t	 getgid(void);
81int	 getgroups(int, gid_t *);
82char	*getlogin(void);
83int	 getlogin_r(char *, size_t);
84pid_t	 getpgrp(void);
85pid_t	 getpid(void);
86pid_t	 getpgid(pid_t);
87pid_t	 getppid(void);
88pid_t	 getsid(pid_t);
89uid_t	 getuid(void);
90int	 isatty(int);
91int	 link(const char *, const char *);
92off_t	 lseek(int, off_t, int);
93long	 pathconf(const char *, int);
94int	 pause(void);
95int	 pipe(int *);
96ssize_t	 read(int, void *, size_t);
97int	 rmdir(const char *);
98int	 setgid(gid_t);
99int	 setpgid(pid_t, pid_t);
100pid_t	 setsid(void);
101int	 setuid(uid_t);
102unsigned int sleep(unsigned int);
103long	 sysconf(int);
104pid_t	 tcgetpgrp(int);
105int	 tcsetpgrp(int, pid_t);
106char	*ttyname(int);
107int	 ttyname_r(int, char *, size_t);
108int	 unlink(const char *);
109ssize_t	 write(int, const void *, size_t);
110
111#ifndef	_POSIX_SOURCE
112
113/* structure timeval required for select() */
114#include <sys/time.h>
115
116/*
117 * X/Open CAE Specification Issue 5 Version 2
118 */
119#if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
120    (_XOPEN_VERSION - 0) >= 500
121ssize_t  pread(int, void *, size_t, off_t);
122ssize_t  pwrite(int, const void *, size_t, off_t);
123#endif
124
125int	 acct(const char *);
126char	*brk(const char *);
127int	 chroot(const char *);
128char	*crypt(const char *, const char *);
129int	 des_cipher(const char *, char *, long, int);
130int	 des_setkey(const char *key);
131int	 encrypt(char *, int);
132void	 endusershell(void);
133int	 exect(const char *, char * const *, char * const *);
134int	 fchdir(int);
135int	 fchown(int, uid_t, gid_t);
136char	*fflagstostr(u_int32_t);
137int	 fsync(int);
138int	 ftruncate(int, off_t);
139int	 getdomainname(char *, size_t);
140int	 getdtablesize(void);
141int	 getgrouplist(const char *, gid_t, gid_t *, int *);
142long	 gethostid(void);
143int	 gethostname(char *, size_t);
144mode_t	 getmode(const void *, mode_t);
145int	 getpagesize(void);
146char	*getpass(const char *);
147char	*getusershell(void);
148char	*getwd(char *);			/* obsoleted by getcwd() */
149int	 initgroups(const char *, gid_t);
150int	 iruserok(u_int32_t, int, const char *, const char *);
151int	 iruserok_sa(const void *, int, int, const char *, const char *);
152int	 lchown(const char *, uid_t, gid_t);
153char	*mkdtemp(char *);
154int	 mkstemp(char *);
155int	 mkstemps(char *, int);
156char	*mktemp(char *);
157int	 nfssvc(int, void *);
158int	 nice(int);
159void	 psignal(unsigned int, const char *);
160extern __const char *__const sys_siglist[];
161int	 profil(char *, size_t, unsigned long, unsigned int);
162int	 rcmd __P((char **, int, const char *,
163		const char *, const char *, int *));
164int	 rcmd_af __P((char **, int, const char *,
165		const char *, const char *, int *, int));
166int	 rcmdsh __P((char **, int, const char *,
167		const char *, const char *, char *));
168char	*re_comp(const char *);
169int	 re_exec(const char *);
170int	 readlink(const char *, char *, size_t);
171int	 reboot(int);
172int	 revoke(const char *);
173int	 rfork(int opts);
174int	 rresvport(int *);
175int	 rresvport_af(int *, int);
176int	 ruserok(const char *, int, const char *, const char *);
177int	 quotactl(const char *, int, int, char *);
178char	*sbrk(int);
179
180#if !defined(_XOPEN_SOURCE)
181int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
182#endif
183
184int	 setdomainname(const char *, size_t);
185int	 setegid(gid_t);
186int	 seteuid(uid_t);
187int	 setgroups(int, const gid_t *);
188int	 sethostid(long);
189int	 sethostname(const char *, size_t);
190int	 setkey(const char *);
191int	 setlogin(const char *);
192void	*setmode(const char *);
193int	 setpgrp(pid_t pid, pid_t pgrp);	/* obsoleted by setpgid() */
194int	 setregid(int, int);
195int	 setreuid(int, int);
196int	 setrgid(gid_t);
197int	 setruid(uid_t);
198void	 setusershell(void);
199int	 strtofflags(char **, u_int32_t *, u_int32_t *);
200void	 swab(const void *, void *, size_t);
201int	 swapon(const char *);
202int	 swapctl(int cmd, const void *arg, int misc);
203int	 symlink(const char *, const char *);
204void	 sync(void);
205int	 syscall(int, ...);
206int	 truncate(const char *, off_t);
207int	 ttyslot(void);
208unsigned int	 ualarm(unsigned int, unsigned int);
209int	 undelete(const char *);
210int	 usleep(useconds_t);
211void	*valloc(size_t);		/* obsoleted by malloc() */
212pid_t	 vfork(void);
213int	 issetugid(void);
214
215int	 getopt(int, char * const *, const char *);
216extern	 char *optarg;			/* getopt(3) external variables */
217extern	 int opterr;
218extern	 int optind;
219extern	 int optopt;
220extern	 int optreset;
221int	 getsubopt(char **, char * const *, char **);
222extern	 char *suboptarg;		/* getsubopt(3) external variable */
223#endif /* !_POSIX_SOURCE */
224
225#if (!defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \
226     !defined(_XOPEN_SOURCE)) || \
227    (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE_EXTENDED - 0 == 1)
228#define F_ULOCK         0
229#define F_LOCK          1
230#define F_TLOCK         2
231#define F_TEST          3
232int     lockf(int, int, off_t);
233#endif /* (!defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)) || ... */
234__END_DECLS
235
236#endif /* !_UNISTD_H_ */
237