1 /* $NetBSD: unistd.h,v 1.139 2013/10/09 09:38:21 njoly Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2008 The NetBSD Foundation, Inc. 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 /* 33 * Copyright (c) 1991, 1993, 1994 34 * The Regents of the University of California. All rights reserved. 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. 44 * 3. Neither the name of the University nor the names of its contributors 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 * 60 * @(#)unistd.h 8.12 (Berkeley) 4/27/95 61 */ 62 63 #ifndef _UNISTD_H_ 64 #define _UNISTD_H_ 65 66 #include <machine/ansi.h> 67 #include <machine/int_types.h> 68 #include <sys/cdefs.h> 69 #include <sys/featuretest.h> 70 #include <sys/types.h> 71 #include <sys/unistd.h> 72 73 #if _FORTIFY_SOURCE > 0 74 #include <ssp/unistd.h> 75 #endif 76 77 /* 78 * IEEE Std 1003.1-90 79 */ 80 #define STDIN_FILENO 0 /* standard input file descriptor */ 81 #define STDOUT_FILENO 1 /* standard output file descriptor */ 82 #define STDERR_FILENO 2 /* standard error file descriptor */ 83 84 #include <sys/null.h> 85 86 __BEGIN_DECLS 87 __dead void _exit(int); 88 int access(const char *, int); 89 unsigned int alarm(unsigned int); 90 int chdir(const char *); 91 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) 92 int chown(const char *, uid_t, gid_t) __RENAME(__posix_chown); 93 #else 94 int chown(const char *, uid_t, gid_t); 95 #endif /* defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) */ 96 int close(int); 97 size_t confstr(int, char *, size_t); 98 #ifndef __CUSERID_DECLARED 99 #define __CUSERID_DECLARED 100 /* also declared in stdio.h */ 101 char *cuserid(char *); /* obsolete */ 102 #endif /* __CUSERID_DECLARED */ 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); 113 #if __SSP_FORTIFY_LEVEL == 0 114 char *getcwd(char *, size_t); 115 #endif 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); 121 int getlogin_r(char *, size_t); 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 *); 131 #if __SSP_FORTIFY_LEVEL == 0 132 ssize_t read(int, void *, size_t); 133 #endif 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); 146 147 148 /* 149 * IEEE Std 1003.2-92, adopted in X/Open Portability Guide Issue 4 and later 150 */ 151 #if (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE) || \ 152 defined(_NETBSD_SOURCE) 153 int getopt(int, char * const [], const char *); 154 155 extern char *optarg; /* getopt(3) external variables */ 156 extern int opterr; 157 extern int optind; 158 extern int optopt; 159 #endif 160 161 /* 162 * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX) 163 */ 164 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \ 165 defined(_NETBSD_SOURCE) 166 int setegid(gid_t); 167 int seteuid(uid_t); 168 #endif 169 170 /* 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 176 off_t lseek(int, off_t, int); 177 int truncate(const char *, off_t); 178 /* 179 * IEEE Std 1003.1b-93, 180 * also found in X/Open Portability Guide >= Issue 4 Verion 2 181 */ 182 #if (_POSIX_C_SOURCE - 0) >= 199309L || \ 183 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 184 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 185 int ftruncate(int, off_t); 186 #endif 187 #endif /* __OFF_T_SYSCALLS_DECLARED */ 188 189 190 /* 191 * IEEE Std 1003.1b-93, adopted in X/Open CAE Specification Issue 5 Version 2 192 */ 193 #if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 194 defined(_NETBSD_SOURCE) 195 #if !defined(__minix) 196 int fdatasync(int); 197 #endif /* !defined(__minix) */ 198 int fsync(int); 199 #endif 200 201 202 /* 203 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2 204 */ 205 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 206 defined(_REENTRANT) || defined(_NETBSD_SOURCE) 207 int ttyname_r(int, char *, size_t); 208 int pthread_atfork(void (*)(void), void (*)(void), void (*)(void)); 209 #endif 210 211 /* 212 * X/Open Portability Guide, all issues 213 */ 214 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 215 int chroot(const char *); 216 int nice(int); 217 #endif 218 219 220 /* 221 * X/Open Portability Guide >= Issue 4 222 */ 223 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 224 __aconst char *crypt(const char *, const char *); 225 int encrypt(char *, int); 226 char *getpass(const char *); 227 pid_t getsid(pid_t); 228 #endif 229 230 231 /* 232 * X/Open Portability Guide >= Issue 4 Version 2 233 */ 234 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 235 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 236 #ifndef intptr_t 237 typedef __intptr_t intptr_t; 238 #define intptr_t __intptr_t 239 #endif 240 241 #define F_ULOCK 0 242 #define F_LOCK 1 243 #define F_TLOCK 2 244 #define F_TEST 3 245 246 int brk(void *); 247 int fchdir(int); 248 #if defined(_XOPEN_SOURCE) 249 int fchown(int, uid_t, gid_t) __RENAME(__posix_fchown); 250 #else 251 int fchown(int, uid_t, gid_t); 252 #endif 253 int getdtablesize(void); 254 long gethostid(void); 255 int gethostname(char *, size_t); 256 __pure int 257 getpagesize(void); /* legacy */ 258 #if !defined(__minix) 259 pid_t getpgid(pid_t); 260 #endif /* !defined(__minix) */ 261 #if defined(_XOPEN_SOURCE) 262 int lchown(const char *, uid_t, gid_t) __RENAME(__posix_lchown); 263 #else 264 int lchown(const char *, uid_t, gid_t); 265 #endif 266 int lockf(int, int, off_t); 267 #if __SSP_FORTIFY_LEVEL == 0 268 ssize_t readlink(const char * __restrict, char * __restrict, size_t); 269 #endif 270 void *sbrk(intptr_t); 271 /* XXX prototype wrong! */ 272 int setpgrp(pid_t, pid_t); /* obsoleted by setpgid() */ 273 #if !defined(__minix) 274 int setregid(gid_t, gid_t); 275 int setreuid(uid_t, uid_t); 276 #endif /* !defined(__minix) */ 277 void swab(const void * __restrict, void * __restrict, ssize_t); 278 int symlink(const char *, const char *); 279 void sync(void); 280 useconds_t ualarm(useconds_t, useconds_t); 281 int usleep(useconds_t); 282 #ifndef __LIBC12_SOURCE__ 283 pid_t vfork(void) __RENAME(__vfork14) __returns_twice; 284 #endif 285 286 #ifndef __AUDIT__ 287 char *getwd(char *); /* obsoleted by getcwd() */ 288 #endif 289 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 290 291 292 /* 293 * X/Open CAE Specification Issue 5 Version 2 294 */ 295 #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 296 ssize_t pread(int, void *, size_t, off_t); 297 ssize_t pwrite(int, const void *, size_t, off_t); 298 #endif 299 300 /* 301 * X/Open Extended API set 2 (a.k.a. C063) 302 */ 303 #if (_POSIX_C_SOURCE - 0) >= 200809L || (_XOPEN_SOURCE - 0 >= 700) || \ 304 defined(_INCOMPLETE_XOPEN_C063) || defined(_NETBSD_SOURCE) 305 int linkat(int, const char *, int, const char *, int); 306 int renameat(int, const char *, int, const char *); 307 int faccessat(int, const char *, int, int); 308 int fchownat(int, const char *, uid_t, gid_t, int); 309 int readlinkat(int, const char *, char *, size_t); 310 int symlinkat(const char *, int, const char *); 311 int unlinkat(int, const char *, int); 312 #endif 313 #if defined(_INCOMPLETE_XOPEN_C063) 314 int fexecve(int, char * const *, char * const *); 315 #endif 316 317 318 /* 319 * Implementation-defined extensions 320 */ 321 #if defined(_NETBSD_SOURCE) 322 #if !defined(__minix) 323 int acct(const char *); 324 #endif /* !defined(__minix) */ 325 int closefrom(int); 326 int des_cipher(const char *, char *, long, int); 327 int des_setkey(const char *); 328 int dup3(int, int, int); 329 void endusershell(void); 330 int exect(const char *, char * const *, char * const *); 331 int fchroot(int); 332 int fsync_range(int, int, off_t, off_t); 333 int getdomainname(char *, size_t); 334 int getgrouplist(const char *, gid_t, gid_t *, int *); 335 int getgroupmembership(const char *, gid_t, gid_t *, int, int *); 336 mode_t getmode(const void *, mode_t); 337 char *getpassfd(const char *, char *, size_t, int *, int, int); 338 #define GETPASS_NEED_TTY 0x001 /* Fail if we cannot set tty */ 339 #define GETPASS_FAIL_EOF 0x002 /* Fail on EOF */ 340 #define GETPASS_BUF_LIMIT 0x004 /* beep on buffer limit */ 341 #define GETPASS_NO_SIGNAL 0x008 /* don't make ttychars send signals */ 342 #define GETPASS_NO_BEEP 0x010 /* don't beep */ 343 #define GETPASS_ECHO 0x020 /* echo characters as they are typed */ 344 #define GETPASS_ECHO_STAR 0x040 /* echo '*' for each character */ 345 #define GETPASS_7BIT 0x080 /* mask the high bit each char */ 346 #define GETPASS_FORCE_LOWER 0x100 /* lowercase each char */ 347 #define GETPASS_FORCE_UPPER 0x200 /* uppercase each char */ 348 #define GETPASS_ECHO_NL 0x400 /* echo a newline if successful */ 349 350 char *getpass_r(const char *, char *, size_t); 351 int getpeereid(int, uid_t *, gid_t *); 352 int getsubopt(char **, char * const *, char **); 353 __aconst char *getusershell(void); 354 int initgroups(const char *, gid_t); 355 int iruserok(uint32_t, int, const char *, const char *); 356 int issetugid(void); 357 int nfssvc(int, void *); 358 int pipe2(int *, int); 359 #if !defined(__minix) 360 int profil(char *, size_t, u_long, u_int); 361 #endif /* !defined(__minix) */ 362 #ifndef __PSIGNAL_DECLARED 363 #define __PSIGNAL_DECLARED 364 /* also in signal.h */ 365 void psignal(int, const char *); 366 #endif /* __PSIGNAL_DECLARED */ 367 int rcmd(char **, int, const char *, const char *, const char *, int *); 368 int reboot(int, char *); 369 #if !defined(__minix) 370 int revoke(const char *); 371 #endif /* !defined(__minix) */ 372 int rresvport(int *); 373 int ruserok(const char *, int, const char *, const char *); 374 int setdomainname(const char *, size_t); 375 int setgroups(int, const gid_t *); 376 int sethostid(long); 377 int sethostname(const char *, size_t); 378 int setlogin(const char *); 379 void *setmode(const char *); 380 int setrgid(gid_t); 381 int setruid(uid_t); 382 void setusershell(void); 383 void strmode(mode_t, char *); 384 #ifndef __STRSIGNAL_DECLARED 385 #define __STRSIGNAL_DECLARED 386 /* backwards-compatibility; also in string.h */ 387 __aconst char *strsignal(int); 388 #endif /* __STRSIGNAL_DECLARED */ 389 #if !defined(__minix) 390 int swapctl(int, void *, int); 391 int swapon(const char *); /* obsoleted by swapctl() */ 392 #endif /* !defined(__minix) */ 393 int syscall(int, ...); 394 quad_t __syscall(quad_t, ...); 395 int undelete(const char *); 396 397 #if 1 /*INET6*/ 398 int rcmd_af(char **, int, const char *, 399 const char *, const char *, int *, int); 400 int rresvport_af(int *, int); 401 int rresvport_af_addr(int *, int, void *); 402 int iruserok_sa(const void *, int, int, const char *, const char *); 403 #endif 404 405 #ifndef __SYS_SIGLIST_DECLARED 406 #define __SYS_SIGLIST_DECLARED 407 /* also in signal.h */ 408 extern const char *const *sys_siglist __RENAME(__sys_siglist14); 409 #endif /* __SYS_SIGLIST_DECLARED */ 410 extern int optreset; /* getopt(3) external variable */ 411 extern char *suboptarg; /* getsubopt(3) external variable */ 412 #endif 413 414 __END_DECLS 415 #endif /* !_UNISTD_H_ */ 416