unistd.h revision 102227 
1/*-
2 * Copyright (c) 1991, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 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 102227 2002-08-21 16:20:02Z mike $
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#ifndef _GID_T_DECLARED
46typedef	__gid_t		gid_t;
47#define	_GID_T_DECLARED
48#endif
49
50#ifndef _SIZE_T_DECLARED
51typedef	__size_t	size_t;
52#define	_SIZE_T_DECLARED
53#endif
54
55#ifndef _SSIZE_T_DECLARED
56typedef	__ssize_t	ssize_t;
57#define	_SSIZE_T_DECLARED
58#endif
59
60#ifndef _UID_T_DECLARED
61typedef	__uid_t_	uid_t;
62#define	_UID_T_DECLARED
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
137/* 1003.2-1992 */
138#if __POSIX_VISIBLE >= 199209
139size_t	 confstr(int, char *, size_t);
140int	 getopt(int, char * const [], const char *);
141
142extern char *optarg;			/* getopt(3) external variables */
143extern int optind, opterr, optopt;
144
145#define	_CS_PATH		1	/* default value of PATH */
146#endif
147
148/* ISO/IEC 9945-1: 1996 */
149#if __POSIX_VISIBLE >= 199506
150int	 fsync(int);
151
152/*
153 * ftruncate() was in the POSIX Realtime Extension (it's used for shared
154 * memory), but truncate() was not.
155 */
156#ifndef _FTRUNCATE_DECLARED
157#define	_FTRUNCATE_DECLARED
158int	 ftruncate(int, off_t);
159#endif
160
161int	 getlogin_r(char *, int);
162#endif
163
164/* 1003.1-2001 */
165#if __POSIX_VISIBLE >= 200112
166int	 fchown(int, uid_t, gid_t);
167int	 gethostname(char *, int /* socklen_t */);
168int	 setegid(gid_t);
169int	 seteuid(uid_t);
170
171/* X/Open mistake copied by POSIX */
172#define	_CS_POSIX_V6_ILP32_OFF32_CFLAGS		2
173#define	_CS_POSIX_V6_ILP32_OFF32_LDFLAGS	3
174#define	_CS_POSIX_V6_ILP32_OFF32_LIBS		4
175#define	_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS	5
176#define	_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS	6
177#define	_CS_POSIX_V6_ILP32_OFFBIG_LIBS		7
178#define	_CS_POSIX_V6_LP64_OFF64_CFLAGS		8
179#define	_CS_POSIX_V6_LP64_OFF64_LDFLAGS		9
180#define	_CS_POSIX_V6_LP64_OFF64_LIBS		10
181#define	_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS	11
182#define	_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS	12
183#define	_CS_POSIX_V6_LPBIG_OFFBIG_LIBS		13
184#define	_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	14
185#endif
186
187/*
188 * symlink() was originally in POSIX.1a, which was withdrawn after
189 * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
190 * course has been in BSD practically forever.
191 */
192#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE
193int	 symlink(const char *__restrict, const char *__restrict);
194#endif
195
196/* X/Open System Interfaces */
197#if __XSI_VISIBLE
198char	*crypt(const char *, const char *);
199/* char	*ctermid(char *); */		/* XXX ??? */
200int	 encrypt(char *, int);
201int	 fchdir(int);
202int	 getpgid(pid_t _pid);
203int	 getsid(pid_t _pid);
204char	*getwd(char *);			/* LEGACY: obsoleted by getcwd() */
205int	 lchown(const char *, uid_t, gid_t);
206int	 lockf(int, int, off_t);
207int	 nice(int);
208ssize_t	 pread(int, void *, size_t, off_t);
209ssize_t	 pwrite(int, const void *, size_t, off_t);
210int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
211int	 setregid(gid_t, gid_t);
212int	 setreuid(uid_t, uid_t);
213/* void	 swab(const void *__restrict, void *__restrict, ssize_t); */
214void	 sync(void);
215unsigned int	 ualarm(unsigned int, unsigned int);
216int	 usleep(unsigned int);
217pid_t	 vfork(void);
218
219/* See comment at ftruncate() above. */
220#ifndef _TRUNCATE_DECLARED
221#define	_TRUNCATE_DECLARED
222int	 truncate(const char *, off_t);
223#endif
224#endif /* __XSI_VISIBLE */
225
226#if __BSD_VISIBLE
227struct timeval;				/* select(2) */
228int	 acct(const char *);
229int	 async_daemon(void);
230int	 brk(const void *);
231int	 chroot(const char *);
232const char *
233	 crypt_get_format(void);
234int	 crypt_set_format(const char *);
235int	 des_cipher(const char *, char *, long, int);
236int	 des_setkey(const char *key);
237void	 endusershell(void);
238int	 exect(const char *, char * const *, char * const *);
239char	*fflagstostr(u_long);
240int	 getdomainname(char *, int);
241int	 getdtablesize(void);
242int	 getgrouplist(const char *, gid_t, gid_t *, int *);
243long	 gethostid(void);
244mode_t	 getmode(const void *, mode_t);
245int	 getpagesize(void) __pure2;
246char	*getpass(const char *);
247int	 getpeereid(int, uid_t *, gid_t *);
248int	 getresgid(gid_t *, gid_t *, gid_t *);
249int	 getresuid(uid_t *, uid_t *, uid_t *);
250char	*getusershell(void);
251int	 initgroups(const char *, gid_t);
252int	 iruserok(unsigned long, int, const char *, const char *);
253int	 iruserok_sa(const void *, int, int, const char *, const char *);
254int	 issetugid(void);
255char	*mkdtemp(char *);
256int	 mknod(const char *, mode_t, dev_t);
257int	 mkstemp(char *);
258int	 mkstemps(char *, int);
259char	*mktemp(char *);
260int	 nfsclnt(int, void *);
261int	 nfssvc(int, void *);
262int	 profil(char *, size_t, vm_offset_t, int);
263int	 rcmd(char **, int, const char *, const char *, const char *, int *);
264int	 rcmd_af(char **, int, const char *,
265		const char *, const char *, int *, int);
266int	 rcmdsh(char **, int, const char *,
267		const char *, const char *, const char *);
268char	*re_comp(const char *);
269int	 re_exec(const char *);
270int	 readlink(const char *, char *, int);
271int	 reboot(int);
272int	 revoke(const char *);
273pid_t	 rfork(int);
274pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
275int	 rresvport(int *);
276int	 rresvport_af(int *, int);
277int	 ruserok(const char *, int, const char *, const char *);
278void	*sbrk(intptr_t);
279int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
280int	 setdomainname(const char *, int);
281int	 setgroups(int, const gid_t *);
282void	 sethostid(long);
283int	 sethostname(const char *, int);
284int	 setkey(const char *);
285int	 setlogin(const char *);
286void	*setmode(const char *);
287int	 setresgid(gid_t, gid_t, gid_t);
288int	 setresuid(uid_t, uid_t, uid_t);
289int	 setrgid(gid_t);
290int	 setruid(uid_t);
291void	 setusershell(void);
292int	 strtofflags(char **, u_long *, u_long *);
293int	 swapon(const char *);
294int	 syscall(int, ...);
295off_t	 __syscall(quad_t, ...);
296int	 ttyslot(void);
297int	 undelete(const char *);
298int	 unwhiteout(const char *);
299void	*valloc(size_t);			/* obsoleted by malloc() */
300
301extern char *suboptarg;			/* getsubopt(3) external variable */
302int	 getsubopt(char **, char * const *, char **);
303extern int optreset;			/* getopt(3) external variable */
304#endif /* __BSD_VISIBLE */
305__END_DECLS
306
307#endif /* !_UNISTD_H_ */
308