Annotation of src/include/unistd.h, Revision 1.132
1.132 ! christos 1: /* $NetBSD: unistd.h,v 1.131 2012/04/12 23:16:55 christos Exp $ */
1.22 cgd 2:
1.1 cgd 3: /*-
1.117 ad 4: * Copyright (c) 1998, 1999, 2008 The NetBSD Foundation, Inc.
1.55 kleink 5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
8: * by Klaus Klein.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29: * POSSIBILITY OF SUCH DAMAGE.
30: */
31:
32: /*
1.49 perry 33: * Copyright (c) 1991, 1993, 1994
34: * The Regents of the University of California. All rights reserved.
1.1 cgd 35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
1.94 agc 44: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
1.49 perry 60: * @(#)unistd.h 8.12 (Berkeley) 4/27/95
1.1 cgd 61: */
62:
63: #ifndef _UNISTD_H_
64: #define _UNISTD_H_
65:
1.77 kleink 66: #include <machine/ansi.h>
1.85 kleink 67: #include <machine/int_types.h>
1.1 cgd 68: #include <sys/cdefs.h>
1.64 mycroft 69: #include <sys/featuretest.h>
1.1 cgd 70: #include <sys/types.h>
71: #include <sys/unistd.h>
1.50 kleink 72:
1.125 christos 73: #if _FORTIFY_SOURCE > 0
74: #include <ssp/unistd.h>
75: #endif
1.55 kleink 76:
77: /*
78: * IEEE Std 1003.1-90
79: */
1.4 jtc 80: #define STDIN_FILENO 0 /* standard input file descriptor */
1.1 cgd 81: #define STDOUT_FILENO 1 /* standard output file descriptor */
82: #define STDERR_FILENO 2 /* standard error file descriptor */
83:
1.80 kleink 84: #include <sys/null.h>
1.1 cgd 85:
86: __BEGIN_DECLS
1.114 perry 87: __dead void _exit(int);
1.101 perry 88: int access(const char *, int);
89: unsigned int alarm(unsigned int);
90: int chdir(const char *);
1.55 kleink 91: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
1.101 perry 92: int chown(const char *, uid_t, gid_t) __RENAME(__posix_chown);
1.55 kleink 93: #else
1.101 perry 94: int chown(const char *, uid_t, gid_t);
1.55 kleink 95: #endif /* defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) */
1.101 perry 96: int close(int);
97: size_t confstr(int, char *, size_t);
1.86 christos 98: #ifndef __CUSERID_DECLARED
99: #define __CUSERID_DECLARED
100: /* also declared in stdio.h */
1.101 perry 101: char *cuserid(char *); /* obsolete */
1.86 christos 102: #endif /* __CUSERID_DECLARED */
1.101 perry 103: int dup(int);
104: int dup2(int, int);
105: int execl(const char *, const char *, ...);
106: int execle(const char *, const char *, ...);
107: int execlp(const char *, const char *, ...);
108: int execv(const char *, char * const *);
109: int execve(const char *, char * const *, char * const *);
110: int execvp(const char *, char * const *);
111: pid_t fork(void);
112: long fpathconf(int, int);
1.125 christos 113: #if __SSP_FORTIFY_LEVEL == 0
1.101 perry 114: char *getcwd(char *, size_t);
1.125 christos 115: #endif
1.101 perry 116: gid_t getegid(void);
117: uid_t geteuid(void);
118: gid_t getgid(void);
119: int getgroups(int, gid_t []);
120: __aconst char *getlogin(void);
1.119 lukem 121: int getlogin_r(char *, size_t);
1.101 perry 122: pid_t getpgrp(void);
123: pid_t getpid(void);
124: pid_t getppid(void);
125: uid_t getuid(void);
126: int isatty(int);
127: int link(const char *, const char *);
128: long pathconf(const char *, int);
129: int pause(void);
130: int pipe(int *);
1.125 christos 131: #if __SSP_FORTIFY_LEVEL == 0
1.101 perry 132: ssize_t read(int, void *, size_t);
1.125 christos 133: #endif
1.101 perry 134: int rmdir(const char *);
135: int setgid(gid_t);
136: int setpgid(pid_t, pid_t);
137: pid_t setsid(void);
138: int setuid(uid_t);
139: unsigned int sleep(unsigned int);
140: long sysconf(int);
141: pid_t tcgetpgrp(int);
142: int tcsetpgrp(int, pid_t);
143: __aconst char *ttyname(int);
144: int unlink(const char *);
145: ssize_t write(int, const void *, size_t);
1.1 cgd 146:
1.55 kleink 147:
148: /*
1.83 christos 149: * IEEE Std 1003.2-92, adopted in X/Open Portability Guide Issue 4 and later
150: */
1.115 drochner 151: #if (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE) || \
1.92 bjh21 152: defined(_NETBSD_SOURCE)
1.101 perry 153: int getopt(int, char * const [], const char *);
1.83 christos 154:
155: extern char *optarg; /* getopt(3) external variables */
156: extern int opterr;
157: extern int optind;
158: extern int optopt;
159: #endif
160:
1.89 jdolecek 161: /*
1.91 kleink 162: * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
1.89 jdolecek 163: */
1.92 bjh21 164: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \
165: defined(_NETBSD_SOURCE)
1.101 perry 166: int setegid(gid_t);
167: int seteuid(uid_t);
1.89 jdolecek 168: #endif
1.83 christos 169:
170: /*
1.86 christos 171: * The following three syscalls are also defined in <sys/types.h>
172: * We protect them against double declarations.
173: */
174: #ifndef __OFF_T_SYSCALLS_DECLARED
175: #define __OFF_T_SYSCALLS_DECLARED
1.101 perry 176: off_t lseek(int, off_t, int);
177: int truncate(const char *, off_t);
1.86 christos 178: /*
1.55 kleink 179: * IEEE Std 1003.1b-93,
180: * also found in X/Open Portability Guide >= Issue 4 Verion 2
181: */
1.92 bjh21 182: #if (_POSIX_C_SOURCE - 0) >= 199309L || \
1.55 kleink 183: (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
1.92 bjh21 184: (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
1.101 perry 185: int ftruncate(int, off_t);
1.55 kleink 186: #endif
1.86 christos 187: #endif /* __OFF_T_SYSCALLS_DECLARED */
1.55 kleink 188:
189:
190: /*
191: * IEEE Std 1003.1b-93, adopted in X/Open CAE Specification Issue 5 Version 2
192: */
1.92 bjh21 193: #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \
194: defined(_NETBSD_SOURCE)
1.101 perry 195: int fdatasync(int);
196: int fsync(int);
1.49 perry 197: #endif
1.55 kleink 198:
199:
200: /*
1.108 kleink 201: * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
202: */
203: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
204: defined(_REENTRANT) || defined(_NETBSD_SOURCE)
205: int ttyname_r(int, char *, size_t);
1.118 ad 206: int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
1.108 kleink 207: #endif
208:
209: /*
1.55 kleink 210: * X/Open Portability Guide, all issues
211: */
1.92 bjh21 212: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.101 perry 213: int chroot(const char *);
214: int nice(int);
1.55 kleink 215: #endif
216:
217:
218: /*
219: * X/Open Portability Guide >= Issue 4
220: */
1.115 drochner 221: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.101 perry 222: __aconst char *crypt(const char *, const char *);
223: int encrypt(char *, int);
224: char *getpass(const char *);
225: pid_t getsid(pid_t);
1.55 kleink 226: #endif
227:
228:
229: /*
230: * X/Open Portability Guide >= Issue 4 Version 2
231: */
1.92 bjh21 232: #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
233: (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
1.85 kleink 234: #ifndef intptr_t
235: typedef __intptr_t intptr_t;
1.87 kleink 236: #define intptr_t __intptr_t
1.77 kleink 237: #endif
238:
1.55 kleink 239: #define F_ULOCK 0
240: #define F_LOCK 1
241: #define F_TLOCK 2
242: #define F_TEST 3
243:
1.101 perry 244: int brk(void *);
245: int fchdir(int);
1.55 kleink 246: #if defined(_XOPEN_SOURCE)
1.101 perry 247: int fchown(int, uid_t, gid_t) __RENAME(__posix_fchown);
1.55 kleink 248: #else
1.101 perry 249: int fchown(int, uid_t, gid_t);
1.55 kleink 250: #endif
1.101 perry 251: int getdtablesize(void);
252: long gethostid(void);
253: int gethostname(char *, size_t);
1.55 kleink 254: __pure int
1.101 perry 255: getpagesize(void); /* legacy */
256: pid_t getpgid(pid_t);
1.55 kleink 257: #if defined(_XOPEN_SOURCE)
1.101 perry 258: int lchown(const char *, uid_t, gid_t) __RENAME(__posix_lchown);
1.55 kleink 259: #else
1.101 perry 260: int lchown(const char *, uid_t, gid_t);
1.55 kleink 261: #endif
1.101 perry 262: int lockf(int, int, off_t);
1.125 christos 263: #if __SSP_FORTIFY_LEVEL == 0
1.101 perry 264: ssize_t readlink(const char * __restrict, char * __restrict, size_t);
1.125 christos 265: #endif
1.101 perry 266: void *sbrk(intptr_t);
1.55 kleink 267: /* XXX prototype wrong! */
1.101 perry 268: int setpgrp(pid_t, pid_t); /* obsoleted by setpgid() */
269: int setregid(gid_t, gid_t);
270: int setreuid(uid_t, uid_t);
1.123 christos 271: void swab(const void * __restrict, void * __restrict, ssize_t);
1.101 perry 272: int symlink(const char *, const char *);
273: void sync(void);
274: useconds_t ualarm(useconds_t, useconds_t);
275: int usleep(useconds_t);
1.105 christos 276: #ifndef __LIBC12_SOURCE__
1.128 joerg 277: pid_t vfork(void) __RENAME(__vfork14) __returns_twice;
1.55 kleink 278: #endif
279:
1.63 mycroft 280: #ifndef __AUDIT__
1.101 perry 281: char *getwd(char *); /* obsoleted by getcwd() */
1.63 mycroft 282: #endif
1.92 bjh21 283: #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
1.58 kleink 284:
285:
286: /*
287: * X/Open CAE Specification Issue 5 Version 2
288: */
1.92 bjh21 289: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
1.101 perry 290: ssize_t pread(int, void *, size_t, off_t);
291: ssize_t pwrite(int, const void *, size_t, off_t);
1.58 kleink 292: #endif
1.55 kleink 293:
1.127 manu 294: /*
295: * X/Open Extended API set 2 (a.k.a. C063)
296: */
297: #if defined(_INCOMPLETE_XOPEN_C063)
298: int linkat(int, const char *, int, const char *, int);
299: int renameat(int, const char *, int, const char *);
300: int mkfifoat(int, const char *, mode_t);
301: int mknodat(int, const char *, mode_t, uint32_t);
302: int mkdirat(int, const char *, mode_t);
303: int faccessat(int, const char *, int, int);
304: int fchmodat(int, const char *, mode_t, int);
305: int fchownat(int, const char *, uid_t, gid_t, int);
306: int fexecve(int, char * const *, char * const *);
307: int readlinkat(int, const char *, char *, size_t);
308: int symlinkat(const char *, int, const char *);
309: int unlinkat(int, const char *, int);
310: #endif
311:
1.55 kleink 312:
313: /*
314: * Implementation-defined extensions
315: */
1.92 bjh21 316: #if defined(_NETBSD_SOURCE)
1.101 perry 317: int acct(const char *);
318: int closefrom(int);
319: int des_cipher(const char *, char *, long, int);
320: int des_setkey(const char *);
1.126 christos 321: int dup3(int, int, int);
1.101 perry 322: void endusershell(void);
323: int exect(const char *, char * const *, char * const *);
324: int fchroot(int);
325: int fsync_range(int, int, off_t, off_t);
326: int getdomainname(char *, size_t);
327: int getgrouplist(const char *, gid_t, gid_t *, int *);
328: int getgroupmembership(const char *, gid_t, gid_t *, int, int *);
329: mode_t getmode(const void *, mode_t);
1.132 ! christos 330: char *getpassfd(const char *, char *, size_t, int[], int, int);
1.130 christos 331: #define GETPASS_NEED_TTY 0x01 /* Fail if we cannot set tty */
332: #define GETPASS_FAIL_EOF 0x02 /* Fail on EOF */
333: #define GETPASS_BUF_LIMIT 0x04 /* beep on buffer limit */
334: #define GETPASS_NO_SIGNAL 0x08 /* don't make ttychars send signals */
335: #define GETPASS_NO_BEEP 0x10 /* don't beep */
1.131 christos 336: #define GETPASS_ECHO 0x20 /* echo characters as they are typed */
337: #define GETPASS_ECHO_STAR 0x40 /* ech '*' for each character */
1.129 christos 338: char *getpass_r(const char *, char *, size_t);
1.113 he 339: int getpeereid(int, uid_t *, gid_t *);
1.101 perry 340: int getsubopt(char **, char * const *, char **);
341: __aconst char *getusershell(void);
342: int initgroups(const char *, gid_t);
1.110 perry 343: int iruserok(uint32_t, int, const char *, const char *);
1.101 perry 344: int issetugid(void);
345: int nfssvc(int, void *);
1.126 christos 346: int pipe2(int *, int);
1.101 perry 347: int profil(char *, size_t, u_long, u_int);
1.86 christos 348: #ifndef __PSIGNAL_DECLARED
349: #define __PSIGNAL_DECLARED
350: /* also in signal.h */
1.126 christos 351: void psignal(int, const char *);
1.86 christos 352: #endif /* __PSIGNAL_DECLARED */
1.101 perry 353: int rcmd(char **, int, const char *, const char *, const char *, int *);
354: int reboot(int, char *);
355: int revoke(const char *);
356: int rresvport(int *);
357: int ruserok(const char *, int, const char *, const char *);
358: int setdomainname(const char *, size_t);
359: int setgroups(int, const gid_t *);
360: int sethostid(long);
361: int sethostname(const char *, size_t);
362: int setlogin(const char *);
363: void *setmode(const char *);
364: int setrgid(gid_t);
365: int setruid(uid_t);
366: void setusershell(void);
367: void strmode(mode_t, char *);
1.121 kleink 368: #ifndef __STRSIGNAL_DECLARED
369: #define __STRSIGNAL_DECLARED
370: /* backwards-compatibility; also in string.h */
1.101 perry 371: __aconst char *strsignal(int);
1.121 kleink 372: #endif /* __STRSIGNAL_DECLARED */
1.104 christos 373: int swapctl(int, void *, int);
1.101 perry 374: int swapon(const char *); /* obsoleted by swapctl() */
375: int syscall(int, ...);
376: quad_t __syscall(quad_t, ...);
377: int undelete(const char *);
1.1 cgd 378:
1.76 kleink 379: #if 1 /*INET6*/
1.101 perry 380: int rcmd_af(char **, int, const char *,
381: const char *, const char *, int *, int);
382: int rresvport_af(int *, int);
383: int iruserok_sa(const void *, int, int, const char *, const char *);
1.76 kleink 384: #endif
385:
1.86 christos 386: #ifndef __SYS_SIGLIST_DECLARED
387: #define __SYS_SIGLIST_DECLARED
388: /* also in signal.h */
1.109 perry 389: extern const char *const *sys_siglist __RENAME(__sys_siglist14);
1.86 christos 390: #endif /* __SYS_SIGLIST_DECLARED */
1.83 christos 391: extern int optreset; /* getopt(3) external variable */
392: extern char *suboptarg; /* getsubopt(3) external variable */
1.54 kleink 393: #endif
1.46 kleink 394:
1.1 cgd 395: __END_DECLS
396: #endif /* !_UNISTD_H_ */
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