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 * $FreeBSD$ 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 46 typedef __gid_t gid_t; 47 #define _GID_T_DECLARED 48 #endif 49 50 #ifndef _OFF_T_DECLARED 51 typedef __off_t off_t; 52 #define _OFF_T_DECLARED 53 #endif 54 55 #ifndef _PID_T_DECLARED 56 typedef __pid_t pid_t; 57 #define _PID_T_DECLARED 58 #endif 59 60 #ifndef _SIZE_T_DECLARED 61 typedef __size_t size_t; 62 #define _SIZE_T_DECLARED 63 #endif 64 65 #ifndef _SSIZE_T_DECLARED 66 typedef __ssize_t ssize_t; 67 #define _SSIZE_T_DECLARED 68 #endif 69 70 #ifndef _UID_T_DECLARED 71 typedef __uid_t uid_t; 72 #define _UID_T_DECLARED 73 #endif 74 75 #ifndef _USECONDS_T_DECLARED 76 typedef __useconds_t useconds_t; 77 #define _USECONDS_T_DECLARED 78 #endif 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 #ifndef NULL 85 #define NULL 0 /* null pointer constant */ 86 #endif 87 88 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112 89 #define F_ULOCK 0 /* unlock locked section */ 90 #define F_LOCK 1 /* lock a section for exclusive use */ 91 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 92 #define F_TEST 3 /* test a section for locks by other procs */ 93 #endif 94 95 /* 96 * POSIX options and option groups we unconditionally do or don't 97 * implement. This list includes those options which are exclusively 98 * implemented (or not) in user mode. Please keep this list in 99 * alphabetical order. 100 * 101 * Anything which is defined as zero below **must** have an 102 * implementation for the corresponding sysconf() which is able to 103 * determine conclusively whether or not the feature is supported. 104 * Anything which is defined as other than -1 below **must** have 105 * complete headers, types, and function declarations as specified by 106 * the POSIX standard; however, if the relevant sysconf() function 107 * returns -1, the functions may be stubbed out. 108 */ 109 #define _POSIX_BARRIERS -1 110 #define _POSIX_READER_WRITER_LOCKS 200112L 111 #define _POSIX_REGEXP 1 112 #define _POSIX_SHELL 1 113 #define _POSIX_SPAWN -1 114 #define _POSIX_SPIN_LOCKS -1 115 #define _POSIX_THREAD_ATTR_STACKADDR 200112L 116 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L 117 #define _POSIX_THREAD_CPUTIME -1 118 #define _POSIX_THREAD_PRIO_INHERIT 200112L 119 #define _POSIX_THREAD_PRIO_PROTECT 200112L 120 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L 121 #define _POSIX_THREAD_PROCESS_SHARED -1 122 #define _POSIX_THREAD_SAFE_FUNCTIONS -1 123 #define _POSIX_THREAD_SPORADIC_SERVER -1 124 #define _POSIX_THREADS 200112L 125 #define _POSIX_TRACE -1 126 #define _POSIX_TRACE_EVENT_FILTER -1 127 #define _POSIX_TRACE_INHERIT -1 128 #define _POSIX_TRACE_LOG -1 129 #define _POSIX2_C_BIND 200112L /* mandatory */ 130 #define _POSIX2_C_DEV -1 /* need c99 utility */ 131 #define _POSIX2_CHAR_TERM 1 132 #define _POSIX2_FORT_DEV -1 /* need fort77 utility */ 133 #define _POSIX2_FORT_RUN 200112L 134 #define _POSIX2_LOCALEDEF -1 135 #define _POSIX2_PBS -1 136 #define _POSIX2_PBS_ACCOUNTING -1 137 #define _POSIX2_PBS_CHECKPOINT -1 138 #define _POSIX2_PBS_LOCATE -1 139 #define _POSIX2_PBS_MESSAGE -1 140 #define _POSIX2_PBS_TRACK -1 141 #define _POSIX2_SW_DEV -1 /* XXX ??? */ 142 #define _POSIX2_UPE 200112L 143 #define _V6_ILP32_OFF32 -1 144 #define _V6_ILP32_OFFBIG 0 145 #define _V6_LP64_OFF64 0 146 #define _V6_LPBIG_OFFBIG -1 147 148 #if __XSI_VISIBLE 149 #define _XOPEN_CRYPT -1 /* XXX ??? */ 150 #define _XOPEN_ENH_I18N -1 /* mandatory in XSI */ 151 #define _XOPEN_LEGACY -1 152 #define _XOPEN_REALTIME -1 153 #define _XOPEN_REALTIME_THREADS -1 154 #define _XOPEN_UNIX -1 155 #endif 156 157 /* Define the POSIX.2 version we target for compliance. */ 158 #define _POSIX2_VERSION 199212L 159 160 /* 161 * POSIX-style system configuration variable accessors (for the 162 * sysconf function). The kernel does not directly implement the 163 * sysconf() interface; rather, a C library stub translates references 164 * to sysconf() into calls to sysctl() using a giant switch statement. 165 * Those that are marked `user' are implemented entirely in the C 166 * library and never query the kernel. pathconf() is implemented 167 * directly by the kernel so those are not defined here. 168 */ 169 #define _SC_ARG_MAX 1 170 #define _SC_CHILD_MAX 2 171 #define _SC_CLK_TCK 3 172 #define _SC_NGROUPS_MAX 4 173 #define _SC_OPEN_MAX 5 174 #define _SC_JOB_CONTROL 6 175 #define _SC_SAVED_IDS 7 176 #define _SC_VERSION 8 177 #define _SC_BC_BASE_MAX 9 /* user */ 178 #define _SC_BC_DIM_MAX 10 /* user */ 179 #define _SC_BC_SCALE_MAX 11 /* user */ 180 #define _SC_BC_STRING_MAX 12 /* user */ 181 #define _SC_COLL_WEIGHTS_MAX 13 /* user */ 182 #define _SC_EXPR_NEST_MAX 14 /* user */ 183 #define _SC_LINE_MAX 15 /* user */ 184 #define _SC_RE_DUP_MAX 16 /* user */ 185 #define _SC_2_VERSION 17 /* user */ 186 #define _SC_2_C_BIND 18 /* user */ 187 #define _SC_2_C_DEV 19 /* user */ 188 #define _SC_2_CHAR_TERM 20 /* user */ 189 #define _SC_2_FORT_DEV 21 /* user */ 190 #define _SC_2_FORT_RUN 22 /* user */ 191 #define _SC_2_LOCALEDEF 23 /* user */ 192 #define _SC_2_SW_DEV 24 /* user */ 193 #define _SC_2_UPE 25 /* user */ 194 #define _SC_STREAM_MAX 26 /* user */ 195 #define _SC_TZNAME_MAX 27 /* user */ 196 197 #if __POSIX_VISIBLE >= 199309 198 #define _SC_ASYNCHRONOUS_IO 28 199 #define _SC_MAPPED_FILES 29 200 #define _SC_MEMLOCK 30 201 #define _SC_MEMLOCK_RANGE 31 202 #define _SC_MEMORY_PROTECTION 32 203 #define _SC_MESSAGE_PASSING 33 204 #define _SC_PRIORITIZED_IO 34 205 #define _SC_PRIORITY_SCHEDULING 35 206 #define _SC_REALTIME_SIGNALS 36 207 #define _SC_SEMAPHORES 37 208 #define _SC_FSYNC 38 209 #define _SC_SHARED_MEMORY_OBJECTS 39 210 #define _SC_SYNCHRONIZED_IO 40 211 #define _SC_TIMERS 41 212 #define _SC_AIO_LISTIO_MAX 42 213 #define _SC_AIO_MAX 43 214 #define _SC_AIO_PRIO_DELTA_MAX 44 215 #define _SC_DELAYTIMER_MAX 45 216 #define _SC_MQ_OPEN_MAX 46 217 #define _SC_PAGESIZE 47 218 #define _SC_RTSIG_MAX 48 219 #define _SC_SEM_NSEMS_MAX 49 220 #define _SC_SEM_VALUE_MAX 50 221 #define _SC_SIGQUEUE_MAX 51 222 #define _SC_TIMER_MAX 52 223 #endif 224 225 #if __POSIX_VISIBLE >= 200112 226 #define _SC_2_PBS 59 /* user */ 227 #define _SC_2_PBS_ACCOUNTING 60 /* user */ 228 #define _SC_2_PBS_CHECKPOINT 61 /* user */ 229 #define _SC_2_PBS_LOCATE 62 /* user */ 230 #define _SC_2_PBS_MESSAGE 63 /* user */ 231 #define _SC_2_PBS_TRACK 64 /* user */ 232 #define _SC_ADVISORY_INFO 65 233 #define _SC_BARRIERS 66 /* user */ 234 #define _SC_CLOCK_SELECTION 67 235 #define _SC_CPUTIME 68 236 #define _SC_FILE_LOCKING 69 237 #define _SC_GETGR_R_SIZE_MAX 70 /* user */ 238 #define _SC_GETPW_R_SIZE_MAX 71 /* user */ 239 #define _SC_HOST_NAME_MAX 72 240 #define _SC_LOGIN_NAME_MAX 73 241 #define _SC_MONOTONIC_CLOCK 74 242 #define _SC_MQ_PRIO_MAX 75 243 #define _SC_READER_WRITER_LOCKS 76 /* user */ 244 #define _SC_REGEXP 77 /* user */ 245 #define _SC_SHELL 78 /* user */ 246 #define _SC_SPAWN 79 /* user */ 247 #define _SC_SPIN_LOCKS 80 /* user */ 248 #define _SC_SPORADIC_SERVER 81 249 #define _SC_THREAD_ATTR_STACKADDR 82 /* user */ 250 #define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ 251 #define _SC_THREAD_CPUTIME 84 /* user */ 252 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ 253 #define _SC_THREAD_KEYS_MAX 86 /* user */ 254 #define _SC_THREAD_PRIO_INHERIT 87 /* user */ 255 #define _SC_THREAD_PRIO_PROTECT 88 /* user */ 256 #define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ 257 #define _SC_THREAD_PROCESS_SHARED 90 /* user */ 258 #define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ 259 #define _SC_THREAD_SPORADIC_SERVER 92 /* user */ 260 #define _SC_THREAD_STACK_MIN 93 /* user */ 261 #define _SC_THREAD_THREADS_MAX 94 /* user */ 262 #define _SC_TIMEOUTS 95 /* user */ 263 #define _SC_THREADS 96 /* user */ 264 #define _SC_TRACE 97 /* user */ 265 #define _SC_TRACE_EVENT_FILTER 98 /* user */ 266 #define _SC_TRACE_INHERIT 99 /* user */ 267 #define _SC_TRACE_LOG 100 /* user */ 268 #define _SC_TTY_NAME_MAX 101 /* user */ 269 #define _SC_TYPED_MEMORY_OBJECTS 102 270 #define _SC_V6_ILP32_OFF32 103 /* user */ 271 #define _SC_V6_ILP32_OFFBIG 104 /* user */ 272 #define _SC_V6_LP64_OFF64 105 /* user */ 273 #define _SC_V6_LPBIG_OFFBIG 106 /* user */ 274 #define _SC_IPV6 118 275 #define _SC_RAW_SOCKETS 119 276 #define _SC_SYMLOOP_MAX 120 277 #endif 278 279 #if __XSI_VISIBLE 280 #define _SC_ATEXIT_MAX 107 /* user */ 281 #define _SC_IOV_MAX 56 282 #define _SC_PAGE_SIZE _SC_PAGESIZE 283 #define _SC_XOPEN_CRYPT 108 /* user */ 284 #define _SC_XOPEN_ENH_I18N 109 /* user */ 285 #define _SC_XOPEN_LEGACY 110 /* user */ 286 #define _SC_XOPEN_REALTIME 111 287 #define _SC_XOPEN_REALTIME_THREADS 112 288 #define _SC_XOPEN_SHM 113 289 #define _SC_XOPEN_STREAMS 114 290 #define _SC_XOPEN_UNIX 115 291 #define _SC_XOPEN_VERSION 116 292 #define _SC_XOPEN_XCU_VERSION 117 /* user */ 293 #endif 294 295 #if __BSD_VISIBLE 296 #define _SC_NPROCESSORS_CONF 57 297 #define _SC_NPROCESSORS_ONLN 58 298 #endif 299 300 /* Keys for the confstr(3) function. */ 301 #if __POSIX_VISIBLE >= 199209 302 #define _CS_PATH 1 /* default value of PATH */ 303 #endif 304 305 #if __POSIX_VISIBLE >= 200112 306 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 307 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 308 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 309 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 310 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 311 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 312 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 313 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 314 #define _CS_POSIX_V6_LP64_OFF64_LIBS 10 315 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 316 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 317 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 318 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 319 #endif 320 321 __BEGIN_DECLS 322 /* 1003.1-1990 */ 323 void _exit(int) __dead2; 324 int access(const char *, int); 325 unsigned int alarm(unsigned int); 326 int chdir(const char *); 327 int chown(const char *, uid_t, gid_t); 328 int close(int); 329 int dup(int); 330 int dup2(int, int); 331 int eaccess(const char *, int); 332 int execl(const char *, const char *, ...); 333 int execle(const char *, const char *, ...); 334 int execlp(const char *, const char *, ...); 335 int execv(const char *, char * const *); 336 int execve(const char *, char * const *, char * const *); 337 int execvp(const char *, char * const *); 338 pid_t fork(void); 339 long fpathconf(int, int); 340 char *getcwd(char *, size_t); 341 gid_t getegid(void); 342 uid_t geteuid(void); 343 gid_t getgid(void); 344 int getgroups(int, gid_t []); 345 char *getlogin(void); 346 pid_t getpgrp(void); 347 pid_t getpid(void); 348 pid_t getppid(void); 349 uid_t getuid(void); 350 int isatty(int); 351 int link(const char *, const char *); 352 #ifndef _LSEEK_DECLARED 353 #define _LSEEK_DECLARED 354 off_t lseek(int, off_t, int); 355 #endif 356 long pathconf(const char *, int); 357 int pause(void); 358 int pipe(int *); 359 ssize_t read(int, void *, size_t); 360 int rmdir(const char *); 361 int setgid(gid_t); 362 int setpgid(pid_t, pid_t); 363 void setproctitle(const char *_fmt, ...) __printf0like(1, 2); 364 pid_t setsid(void); 365 int setuid(uid_t); 366 unsigned int sleep(unsigned int); 367 long sysconf(int); 368 pid_t tcgetpgrp(int); 369 int tcsetpgrp(int, pid_t); 370 char *ttyname(int); 371 int unlink(const char *); 372 ssize_t write(int, const void *, size_t); 373 374 /* 1003.2-1992 */ 375 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE 376 size_t confstr(int, char *, size_t); 377 int getopt(int, char * const [], const char *); 378 379 extern char *optarg; /* getopt(3) external variables */ 380 extern int optind, opterr, optopt; 381 #endif 382 383 /* ISO/IEC 9945-1: 1996 */ 384 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 385 int fsync(int); 386 387 /* 388 * ftruncate() was in the POSIX Realtime Extension (it's used for shared 389 * memory), but truncate() was not. 390 */ 391 #ifndef _FTRUNCATE_DECLARED 392 #define _FTRUNCATE_DECLARED 393 int ftruncate(int, off_t); 394 #endif 395 #endif 396 397 #if __POSIX_VISIBLE >= 199506 398 int getlogin_r(char *, int); 399 #endif 400 401 /* 1003.1-2001 */ 402 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 403 int fchown(int, uid_t, gid_t); 404 int readlink(const char *, char *, int); 405 #endif 406 #if __POSIX_VISIBLE >= 200112 407 int gethostname(char *, size_t); 408 int setegid(gid_t); 409 int seteuid(uid_t); 410 #endif 411 412 /* 413 * symlink() was originally in POSIX.1a, which was withdrawn after 414 * being overtaken by events (1003.1-2001). It was in XPG4.2, and of 415 * course has been in BSD since 4.2. 416 */ 417 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE 418 int symlink(const char * __restrict, const char * __restrict); 419 #endif 420 421 /* X/Open System Interfaces */ 422 #if __XSI_VISIBLE 423 char *crypt(const char *, const char *); 424 /* char *ctermid(char *); */ /* XXX ??? */ 425 int encrypt(char *, int); 426 int fchdir(int); 427 long gethostid(void); 428 int getpgid(pid_t _pid); 429 int getsid(pid_t _pid); 430 char *getwd(char *); /* LEGACY: obsoleted by getcwd() */ 431 int lchown(const char *, uid_t, gid_t); 432 int lockf(int, int, off_t); 433 int nice(int); 434 ssize_t pread(int, void *, size_t, off_t); 435 ssize_t pwrite(int, const void *, size_t, off_t); 436 int setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */ 437 int setregid(gid_t, gid_t); 438 int setreuid(uid_t, uid_t); 439 /* void swab(const void * __restrict, void * __restrict, ssize_t); */ 440 void sync(void); 441 useconds_t ualarm(useconds_t, useconds_t); 442 int usleep(useconds_t); 443 pid_t vfork(void); 444 445 /* See comment at ftruncate() above. */ 446 #ifndef _TRUNCATE_DECLARED 447 #define _TRUNCATE_DECLARED 448 int truncate(const char *, off_t); 449 #endif 450 #endif /* __XSI_VISIBLE */ 451 452 #if __XSI_VISIBLE <= 500 || __BSD_VISIBLE 453 int brk(const void *); 454 int chroot(const char *); 455 int getdtablesize(void); 456 int getpagesize(void) __pure2; 457 char *getpass(const char *); 458 void *sbrk(intptr_t); 459 #endif 460 461 #if __BSD_VISIBLE 462 struct timeval; /* select(2) */ 463 int acct(const char *); 464 int async_daemon(void); 465 int check_utility_compat(const char *); 466 const char * 467 crypt_get_format(void); 468 int crypt_set_format(const char *); 469 int des_cipher(const char *, char *, long, int); 470 int des_setkey(const char *key); 471 void endusershell(void); 472 int exect(const char *, char * const *, char * const *); 473 int execvP(const char *, const char *, char * const *); 474 char *fflagstostr(u_long); 475 int getdomainname(char *, int); 476 int getgrouplist(const char *, gid_t, gid_t *, int *); 477 mode_t getmode(const void *, mode_t); 478 int getpeereid(int, uid_t *, gid_t *); 479 int getresgid(gid_t *, gid_t *, gid_t *); 480 int getresuid(uid_t *, uid_t *, uid_t *); 481 char *getusershell(void); 482 int initgroups(const char *, gid_t); 483 int iruserok(unsigned long, int, const char *, const char *); 484 int iruserok_sa(const void *, int, int, const char *, const char *); 485 int issetugid(void); 486 char *mkdtemp(char *); 487 int mknod(const char *, mode_t, dev_t); 488 #ifndef _MKSTEMP_DECLARED 489 int mkstemp(char *); 490 #define _MKSTEMP_DECLARED 491 #endif 492 int mkstemps(char *, int); 493 #ifndef _MKTEMP_DECLARED 494 char *mktemp(char *); 495 #define _MKTEMP_DECLARED 496 #endif 497 int nfsclnt(int, void *); 498 int nfssvc(int, void *); 499 int profil(char *, size_t, vm_offset_t, int); 500 int rcmd(char **, int, const char *, const char *, const char *, int *); 501 int rcmd_af(char **, int, const char *, 502 const char *, const char *, int *, int); 503 int rcmdsh(char **, int, const char *, 504 const char *, const char *, const char *); 505 char *re_comp(const char *); 506 int re_exec(const char *); 507 int reboot(int); 508 int revoke(const char *); 509 pid_t rfork(int); 510 pid_t rfork_thread(int, void *, int (*)(void *), void *); 511 int rresvport(int *); 512 int rresvport_af(int *, int); 513 int ruserok(const char *, int, const char *, const char *); 514 #if __BSD_VISIBLE 515 #ifndef _SELECT_DECLARED 516 #define _SELECT_DECLARED 517 int select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 518 #endif 519 #endif 520 int setdomainname(const char *, int); 521 int setgroups(int, const gid_t *); 522 void sethostid(long); 523 int sethostname(const char *, int); 524 #ifndef _SETKEY_DECLARED 525 int setkey(const char *); 526 #define _SETKEY_DECLARED 527 #endif 528 int setlogin(const char *); 529 void *setmode(const char *); 530 int setresgid(gid_t, gid_t, gid_t); 531 int setresuid(uid_t, uid_t, uid_t); 532 int setrgid(gid_t); 533 int setruid(uid_t); 534 void setusershell(void); 535 int strtofflags(char **, u_long *, u_long *); 536 int swapon(const char *); 537 int swapoff(const char *); 538 int syscall(int, ...); 539 off_t __syscall(quad_t, ...); 540 int ttyslot(void); 541 int undelete(const char *); 542 int unwhiteout(const char *); 543 void *valloc(size_t); /* obsoleted by malloc() */ 544 545 extern char *suboptarg; /* getsubopt(3) external variable */ 546 #ifndef _GETSUBOPT_DECLARED 547 int getsubopt(char **, char * const *, char **); 548 #define _GETSUBOPT_DECLARED 549 #endif 550 extern int optreset; /* getopt(3) external variable */ 551 #endif /* __BSD_VISIBLE */ 552 __END_DECLS 553 554 #endif /* !_UNISTD_H_ */ 555