xref: /freebsd/include/unistd.h (revision 7f3dea244c40159a41ab22da77a434d7c5b5e85a)
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  */
35 
36 #ifndef _UNISTD_H_
37 #define	_UNISTD_H_
38 
39 #include <sys/cdefs.h>
40 #include <sys/types.h>
41 #include <sys/unistd.h>
42 
43 #define	 STDIN_FILENO	0	/* standard input file descriptor */
44 #define	STDOUT_FILENO	1	/* standard output file descriptor */
45 #define	STDERR_FILENO	2	/* standard error file descriptor */
46 
47 #ifndef NULL
48 #define	NULL		0	/* null pointer constant */
49 #endif
50 
51 #ifndef _POSIX_SOURCE
52 #define	F_ULOCK		0	/* unlock locked section */
53 #define	F_LOCK		1	/* lock a section for exclusive use */
54 #define	F_TLOCK		2	/* test and lock a section for exclusive use */
55 #define	F_TEST		3	/* test a section for locks by other procs */
56 #endif
57 
58 __BEGIN_DECLS
59 void	 _exit __P((int)) __dead2;
60 int	 access __P((const char *, int));
61 unsigned int	 alarm __P((unsigned int));
62 int	 chdir __P((const char *));
63 int	 chown __P((const char *, uid_t, gid_t));
64 int	 close __P((int));
65 int	 dup __P((int));
66 int	 dup2 __P((int, int));
67 int	 execl __P((const char *, const char *, ...));
68 int	 execle __P((const char *, const char *, ...));
69 int	 execlp __P((const char *, const char *, ...));
70 int	 execv __P((const char *, char * const *));
71 int	 execve __P((const char *, char * const *, char * const *));
72 int	 execvp __P((const char *, char * const *));
73 pid_t	 fork __P((void));
74 long	 fpathconf __P((int, int));
75 char	*getcwd __P((char *, size_t));
76 gid_t	 getegid __P((void));
77 uid_t	 geteuid __P((void));
78 gid_t	 getgid __P((void));
79 int	 getgroups __P((int, gid_t []));
80 char	*getlogin __P((void));
81 pid_t	 getpgrp __P((void));
82 pid_t	 getpid __P((void));
83 pid_t	 getppid __P((void));
84 uid_t	 getuid __P((void));
85 int	 isatty __P((int));
86 int	 link __P((const char *, const char *));
87 #ifndef _LSEEK_DECLARED
88 #define	_LSEEK_DECLARED
89 off_t	 lseek __P((int, off_t, int));
90 #endif
91 long	 pathconf __P((const char *, int));
92 int	 pause __P((void));
93 int	 pipe __P((int *));
94 ssize_t	 read __P((int, void *, size_t));
95 int	 rmdir __P((const char *));
96 int	 setgid __P((gid_t));
97 int	 setpgid __P((pid_t, pid_t));
98 pid_t	 setsid __P((void));
99 int	 setuid __P((uid_t));
100 unsigned int	 sleep __P((unsigned int));
101 long	 sysconf __P((int));
102 pid_t	 tcgetpgrp __P((int));
103 int	 tcsetpgrp __P((int, pid_t));
104 char	*ttyname __P((int));
105 int	 unlink __P((const char *));
106 ssize_t	 write __P((int, const void *, size_t));
107 
108 extern char *optarg;			/* getopt(3) external variables */
109 extern int optind, opterr, optopt;
110 int	 getopt __P((int, char * const [], const char *));
111 
112 #ifndef	_POSIX_SOURCE
113 #ifdef	__STDC__
114 struct timeval;				/* select(2) */
115 #endif
116 int	 acct __P((const char *));
117 int	 async_daemon __P((void));
118 char	*brk __P((const char *));
119 int	 chroot __P((const char *));
120 size_t	 confstr __P((int, char *, size_t));
121 char	*crypt __P((const char *, const char *));
122 int	 des_cipher __P((const char *, char *, long, int));
123 int	 des_setkey __P((const char *key));
124 int	 encrypt __P((char *, int));
125 void	 endusershell __P((void));
126 int	 exect __P((const char *, char * const *, char * const *));
127 int	 fchdir __P((int));
128 int	 fchown __P((int, uid_t, gid_t));
129 int	 fsync __P((int));
130 #ifndef _FTRUNCATE_DECLARED
131 #define	_FTRUNCATE_DECLARED
132 int	 ftruncate __P((int, off_t));
133 #endif
134 int	 getdomainname __P((char *, int));
135 int	 getdtablesize __P((void));
136 int	 getgrouplist __P((const char *, int, int *, int *));
137 long	 gethostid __P((void));
138 int	 gethostname __P((char *, int));
139 mode_t	 getmode __P((const void *, mode_t));
140 int	 getpagesize __P((void)) __pure2;
141 char	*getpass __P((const char *));
142 int	 getpgid __P((pid_t _pid));
143 int	 getsid __P((pid_t _pid));
144 char	*getusershell __P((void));
145 char	*getwd __P((char *));			/* obsoleted by getcwd() */
146 int	 initgroups __P((const char *, int));
147 int	 iruserok __P((unsigned long, int, const char *, const char *));
148 int	 issetugid __P((void));
149 int	 lchown __P((const char *, uid_t, gid_t));
150 int	 lockf __P((int, int, off_t));
151 char	*mkdtemp __P((char *));
152 int	 mknod __P((const char *, mode_t, dev_t));
153 int	 mkstemp __P((char *));
154 int	 mkstemps __P((char *, int));
155 char	*mktemp __P((char *));
156 int	 nfssvc __P((int, void *));
157 int	 nice __P((int));
158 ssize_t	 pread __P((int, void *, size_t, off_t));
159 int	 profil __P((char *, size_t, vm_offset_t, int));
160 ssize_t	 pwrite __P((int, const void *, size_t, off_t));
161 int	 rcmd __P((char **, int, const char *,
162 		const char *, const char *, int *));
163 char	*re_comp __P((const char *));
164 int	 re_exec __P((const char *));
165 int	 readlink __P((const char *, char *, int));
166 int	 reboot __P((int));
167 int	 revoke __P((const char *));
168 pid_t	 rfork __P((int));
169 int	 rresvport __P((int *));
170 int	 ruserok __P((const char *, int, const char *, const char *));
171 char	*sbrk __P((int));
172 int	 select __P((int, fd_set *, fd_set *, fd_set *, struct timeval *));
173 int	 setdomainname __P((const char *, int));
174 int	 setegid __P((gid_t));
175 int	 seteuid __P((uid_t));
176 int	 setgroups __P((int, const gid_t *));
177 void	 sethostid __P((long));
178 int	 sethostname __P((const char *, int));
179 int	 setkey __P((const char *));
180 int	 setlogin __P((const char *));
181 void	*setmode __P((const char *));
182 int	 setpgrp __P((pid_t _pid, pid_t _pgrp)); /* obsoleted by setpgid() */
183 int	 setregid __P((gid_t, gid_t));
184 int	 setreuid __P((uid_t, uid_t));
185 int	 setrgid __P((gid_t));
186 int	 setruid __P((uid_t));
187 void	 setusershell __P((void));
188 int	 swapon __P((const char *));
189 int	 symlink __P((const char *, const char *));
190 void	 sync __P((void));
191 int	 syscall __P((int, ...));
192 off_t	 __syscall __P((quad_t, ...));
193 #ifndef _TRUNCATE_DECLARED
194 #define	_TRUNCATE_DECLARED
195 int	 truncate __P((const char *, off_t));
196 #endif
197 int	 ttyslot __P((void));
198 unsigned int	 ualarm __P((unsigned int, unsigned int));
199 int	 undelete __P((const char *));
200 int	 unwhiteout __P((const char *));
201 int	 usleep __P((unsigned int));
202 void	*valloc __P((size_t));			/* obsoleted by malloc() */
203 pid_t	 vfork __P((void));
204 
205 extern char *suboptarg;			/* getsubopt(3) external variable */
206 int	 getsubopt __P((char **, char * const *, char **));
207 #endif /* !_POSIX_SOURCE */
208 extern int optreset;			/* getopt(3) external variable */
209 __END_DECLS
210 
211 #endif /* !_UNISTD_H_ */
212