unistd.h revision 98269 
1168404Spjd/*-
2168404Spjd * Copyright (c) 1991, 1993, 1994
3177674Sjb *	The Regents of the University of California.  All rights reserved.
4177674Sjb *
5174059Sjb * Redistribution and use in source and binary forms, with or without
6174059Sjb * modification, are permitted provided that the following conditions
7184696Srodrigc * are met:
8184696Srodrigc * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
34 * $FreeBSD: head/include/unistd.h 98269 2002-06-15 23:35:37Z wollman $
35 */
36
37#ifndef _UNISTD_H_
38#define	_UNISTD_H_
39
40#include <sys/cdefs.h>
41#include <sys/types.h>			/* XXX adds too much pollution. */
42#include <sys/unistd.h>
43#include <sys/_types.h>
44
45#ifdef	_BSD_GID_T_
46typedef	_BSD_GID_T_	gid_t;
47#undef	_BSD_GID_T_
48#endif
49
50#ifdef	_BSD_SIZE_T_
51typedef	_BSD_SIZE_T_	size_t;
52#undef	_BSD_SIZE_T_
53#endif
54
55#ifdef	_BSD_SSIZE_T_
56typedef	_BSD_SSIZE_T_	ssize_t;
57#undef	_BSD_SSIZE_T_
58#endif
59
60#ifdef	_BSD_UID_T_
61typedef	_BSD_UID_T_	uid_t;
62#undef	_BSD_UID_T_
63#endif
64
65/*
66 * XXX missing type definitions for off_t, pid_t and useconds_t.
67 */
68
69#define	 STDIN_FILENO	0	/* standard input file descriptor */
70#define	STDOUT_FILENO	1	/* standard output file descriptor */
71#define	STDERR_FILENO	2	/* standard error file descriptor */
72
73#ifndef NULL
74#define	NULL		0	/* null pointer constant */
75#endif
76
77#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
78#define	F_ULOCK		0	/* unlock locked section */
79#define	F_LOCK		1	/* lock a section for exclusive use */
80#define	F_TLOCK		2	/* test and lock a section for exclusive use */
81#define	F_TEST		3	/* test a section for locks by other procs */
82#endif
83
84__BEGIN_DECLS
85/* 1003.1-1990 */
86void	 _exit(int) __dead2;
87int	 access(const char *, int);
88unsigned int	 alarm(unsigned int);
89int	 chdir(const char *);
90int	 chown(const char *, uid_t, gid_t);
91int	 close(int);
92int	 dup(int);
93int	 dup2(int, int);
94int	 eaccess(const char *, int);
95int	 execl(const char *, const char *, ...);
96int	 execle(const char *, const char *, ...);
97int	 execlp(const char *, const char *, ...);
98int	 execv(const char *, char * const *);
99int	 execve(const char *, char * const *, char * const *);
100int	 execvp(const char *, char * const *);
101pid_t	 fork(void);
102long	 fpathconf(int, int);
103char	*getcwd(char *, size_t);
104gid_t	 getegid(void);
105uid_t	 geteuid(void);
106gid_t	 getgid(void);
107int	 getgroups(int, gid_t []);
108char	*getlogin(void);
109pid_t	 getpgrp(void);
110pid_t	 getpid(void);
111pid_t	 getppid(void);
112uid_t	 getuid(void);
113int	 isatty(int);
114int	 link(const char *, const char *);
115#ifndef _LSEEK_DECLARED
116#define	_LSEEK_DECLARED
117off_t	 lseek(int, off_t, int);
118#endif
119long	 pathconf(const char *, int);
120int	 pause(void);
121int	 pipe(int *);
122ssize_t	 read(int, void *, size_t);
123int	 rmdir(const char *);
124int	 setgid(gid_t);
125int	 setpgid(pid_t, pid_t);
126void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
127pid_t	 setsid(void);
128int	 setuid(uid_t);
129unsigned int	 sleep(unsigned int);
130long	 sysconf(int);
131pid_t	 tcgetpgrp(int);
132int	 tcsetpgrp(int, pid_t);
133char	*ttyname(int);
134int	 unlink(const char *);
135ssize_t	 write(int, const void *, size_t);
136
137extern char *optarg;			/* getopt(3) external variables */
138extern int optind, opterr, optopt;
139int	 getopt(int, char * const [], const char *);
140
141/* 1003.1b-1993 */
142#if __POSIX_VISIBLE >= 199309
143/*
144 * Need to check old copies of POSIX to determine when each of these
145 * interfaces was added.
146 */
147size_t	 confstr(int, char *, size_t);
148int	 fchown(int, uid_t, gid_t);
149int	 fsync(int);
150
151/* symlink is from .1a and XPG4.2 -- need to check version for the former */
152int	 symlink(const char *, const char *);
153#endif
154
155/* ISO/IEC 9945-1: 1996 */
156#if __POSIX_VISIBLE >= 199506
157/*
158 * ftruncate() was in the POSIX Realtime Extension (it's used for shared
159 * memory), but truncate() was not.
160 */
161#ifndef _FTRUNCATE_DECLARED
162#define	_FTRUNCATE_DECLARED
163int	 ftruncate(int, off_t);
164#endif
165
166int	 getlogin_r(char *, int);
167#endif
168
169/* 1003.1-2001 */
170#if __POSIX_VISIBLE >= 200112
171int	 gethostname(char *, int /* socklen_t */);
172int	 setegid(gid_t);
173int	 seteuid(uid_t);
174#endif
175
176/* X/Open System Interfaces */
177#if __XSI_VISIBLE
178char	*crypt(const char *, const char *);
179/* char	*ctermid(char *); */		/* XXX ??? */
180int	 encrypt(char *, int);
181int	 fchdir(int);
182int	 getpgid(pid_t _pid);
183int	 getsid(pid_t _pid);
184char	*getwd(char *);			/* LEGACY: obsoleted by getcwd() */
185int	 lchown(const char *, uid_t, gid_t);
186int	 lockf(int, int, off_t);
187int	 nice(int);
188ssize_t	 pread(int, void *, size_t, off_t);
189ssize_t	 pwrite(int, const void *, size_t, off_t);
190int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
191int	 setregid(gid_t, gid_t);
192int	 setreuid(uid_t, uid_t);
193/* void	 swab(const void *__restrict, void *__restrict, ssize_t); */
194void	 sync(void);
195unsigned int	 ualarm(unsigned int, unsigned int);
196int	 usleep(unsigned int);
197pid_t	 vfork(void);
198
199/* See comment at ftruncate() above. */
200#ifndef _TRUNCATE_DECLARED
201#define	_TRUNCATE_DECLARED
202int	 truncate(const char *, off_t);
203#endif
204#endif /* __XSI_VISIBLE */
205
206#if __BSD_VISIBLE
207struct timeval;				/* select(2) */
208int	 acct(const char *);
209int	 async_daemon(void);
210int	 brk(const void *);
211int	 chroot(const char *);
212const char *
213	 crypt_get_format(void);
214int	 crypt_set_format(const char *);
215int	 des_cipher(const char *, char *, long, int);
216int	 des_setkey(const char *key);
217void	 endusershell(void);
218int	 exect(const char *, char * const *, char * const *);
219char	*fflagstostr(u_long);
220int	 getdomainname(char *, int);
221int	 getdtablesize(void);
222int	 getgrouplist(const char *, gid_t, gid_t *, int *);
223long	 gethostid(void);
224mode_t	 getmode(const void *, mode_t);
225int	 getpagesize(void) __pure2;
226char	*getpass(const char *);
227int	 getpeereid(int, uid_t *, gid_t *);
228int	 getresgid(gid_t *, gid_t *, gid_t *);
229int	 getresuid(uid_t *, uid_t *, uid_t *);
230char	*getusershell(void);
231int	 initgroups(const char *, gid_t);
232int	 iruserok(unsigned long, int, const char *, const char *);
233int	 iruserok_sa(const void *, int, int, const char *, const char *);
234int	 issetugid(void);
235char	*mkdtemp(char *);
236int	 mknod(const char *, mode_t, dev_t);
237int	 mkstemp(char *);
238int	 mkstemps(char *, int);
239char	*mktemp(char *);
240int	 nfsclnt(int, void *);
241int	 nfssvc(int, void *);
242int	 profil(char *, size_t, vm_offset_t, int);
243int	 rcmd(char **, int, const char *, const char *, const char *, int *);
244int	 rcmd_af(char **, int, const char *,
245		const char *, const char *, int *, int);
246int	 rcmdsh(char **, int, const char *,
247		const char *, const char *, const char *);
248char	*re_comp(const char *);
249int	 re_exec(const char *);
250int	 readlink(const char *, char *, int);
251int	 reboot(int);
252int	 revoke(const char *);
253pid_t	 rfork(int);
254pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
255int	 rresvport(int *);
256int	 rresvport_af(int *, int);
257int	 ruserok(const char *, int, const char *, const char *);
258void	*sbrk(intptr_t);
259int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
260int	 setdomainname(const char *, int);
261int	 setgroups(int, const gid_t *);
262void	 sethostid(long);
263int	 sethostname(const char *, int);
264int	 setkey(const char *);
265int	 setlogin(const char *);
266void	*setmode(const char *);
267int	 setresgid(gid_t, gid_t, gid_t);
268int	 setresuid(uid_t, uid_t, uid_t);
269int	 setrgid(gid_t);
270int	 setruid(uid_t);
271void	 setusershell(void);
272int	 strtofflags(char **, u_long *, u_long *);
273int	 swapon(const char *);
274int	 syscall(int, ...);
275off_t	 __syscall(quad_t, ...);
276int	 ttyslot(void);
277int	 undelete(const char *);
278int	 unwhiteout(const char *);
279void	*valloc(size_t);			/* obsoleted by malloc() */
280
281extern char *suboptarg;			/* getsubopt(3) external variable */
282int	 getsubopt(char **, char * const *, char **);
283extern int optreset;			/* getopt(3) external variable */
284#endif /* __BSD_VISIBLE */
285__END_DECLS
286
287#endif /* !_UNISTD_H_ */
288