1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #ifndef _UNISTD_H 31 #define _UNISTD_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #include <sys/feature_tests.h> 36 37 #include <sys/types.h> 38 #include <sys/unistd.h> 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /* Symbolic constants for the "access" routine: */ 45 #define R_OK 4 /* Test for Read permission */ 46 #define W_OK 2 /* Test for Write permission */ 47 #define X_OK 1 /* Test for eXecute permission */ 48 #define F_OK 0 /* Test for existence of File */ 49 50 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 51 #define F_ULOCK 0 /* Unlock a previously locked region */ 52 #define F_LOCK 1 /* Lock a region for exclusive use */ 53 #define F_TLOCK 2 /* Test and lock a region for exclusive use */ 54 #define F_TEST 3 /* Test a region for other processes locks */ 55 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 56 57 /* Symbolic constants for the "lseek" routine: */ 58 59 #ifndef SEEK_SET 60 #define SEEK_SET 0 /* Set file pointer to "offset" */ 61 #endif 62 63 #ifndef SEEK_CUR 64 #define SEEK_CUR 1 /* Set file pointer to current plus "offset" */ 65 #endif 66 67 #ifndef SEEK_END 68 #define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ 69 #endif 70 71 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 72 #ifndef SEEK_DATA 73 #define SEEK_DATA 3 /* Set file pointer to next data past offset */ 74 #endif 75 76 #ifndef SEEK_HOLE 77 #define SEEK_HOLE 4 /* Set file pointer to next hole past offset */ 78 #endif 79 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 80 81 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 82 /* Path names: */ 83 #define GF_PATH "/etc/group" /* Path name of the "group" file */ 84 #define PF_PATH "/etc/passwd" /* Path name of the "passwd" file */ 85 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 86 87 /* 88 * compile-time symbolic constants, 89 * Support does not mean the feature is enabled. 90 * Use pathconf/sysconf to obtain actual configuration value. 91 */ 92 93 /* Values unchanged in UNIX 03 */ 94 #define _POSIX_ASYNC_IO 1 95 #define _POSIX_JOB_CONTROL 1 96 #define _POSIX_SAVED_IDS 1 97 #define _POSIX_SYNC_IO 1 98 99 /* 100 * POSIX.1b compile-time symbolic constants. 101 */ 102 #if defined(_XPG6) 103 #define _POSIX_ASYNCHRONOUS_IO 200112L 104 #define _POSIX_FSYNC 200112L 105 #define _POSIX_MAPPED_FILES 200112L 106 #define _POSIX_MEMLOCK 200112L 107 #define _POSIX_MEMLOCK_RANGE 200112L 108 #define _POSIX_MEMORY_PROTECTION 200112L 109 #define _POSIX_MESSAGE_PASSING 200112L 110 #define _POSIX_PRIORITY_SCHEDULING 200112L 111 #define _POSIX_REALTIME_SIGNALS 200112L 112 #define _POSIX_SEMAPHORES 200112L 113 #define _POSIX_SHARED_MEMORY_OBJECTS 200112L 114 #define _POSIX_SYNCHRONIZED_IO 200112L 115 #else 116 #define _POSIX_ASYNCHRONOUS_IO 1 117 #define _POSIX_FSYNC 1 118 #define _POSIX_MAPPED_FILES 1 119 #define _POSIX_MEMLOCK 1 120 #define _POSIX_MEMLOCK_RANGE 1 121 #define _POSIX_MEMORY_PROTECTION 1 122 #define _POSIX_MESSAGE_PASSING 1 123 #define _POSIX_PRIORITY_SCHEDULING 1 124 #define _POSIX_REALTIME_SIGNALS 1 125 #define _POSIX_SEMAPHORES 1 126 #define _POSIX_SHARED_MEMORY_OBJECTS 1 127 #define _POSIX_SYNCHRONIZED_IO 1 128 #endif 129 130 /* 131 * POSIX.1c compile-time symbolic constants. 132 */ 133 #if defined(_XPG6) 134 #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L 135 #define _POSIX_THREADS 200112L 136 #define _POSIX_THREAD_ATTR_STACKADDR 200112L 137 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L 138 #define _POSIX_THREAD_PROCESS_SHARED 200112L 139 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L 140 #define _POSIX_TIMERS 200112L 141 #else 142 #define _POSIX_THREAD_SAFE_FUNCTIONS 1 143 #define _POSIX_THREADS 1 144 #define _POSIX_THREAD_ATTR_STACKADDR 1 145 #define _POSIX_THREAD_ATTR_STACKSIZE 1 146 #define _POSIX_THREAD_PROCESS_SHARED 1 147 #define _POSIX_THREAD_PRIORITY_SCHEDULING 1 148 #define _POSIX_TIMERS 1 149 #endif 150 151 /* New in UNIX 03 */ 152 #define _POSIX_ADVISORY_INFO 200112L 153 #define _POSIX_BARRIERS 200112L 154 #define _POSIX_CLOCK_SELECTION 200112L 155 #define _POSIX_IPV6 200112L 156 #define _POSIX_MONOTONIC_CLOCK 200112L 157 #define _POSIX_RAW_SOCKETS 200112L 158 #define _POSIX_READER_WRITER_LOCKS 200112L 159 #define _POSIX_SPAWN 200112L 160 #define _POSIX_SPIN_LOCKS 200112L 161 #define _POSIX_TIMEOUTS 200112L 162 163 /* 164 * Support for the POSIX.1 mutex protocol attribute. For realtime applications 165 * which need mutexes to support priority inheritance/ceiling. 166 */ 167 #if defined(_XPG6) 168 #define _POSIX_THREAD_PRIO_INHERIT 200112L 169 #define _POSIX_THREAD_PRIO_PROTECT 200112L 170 #else 171 #define _POSIX_THREAD_PRIO_INHERIT 1 172 #define _POSIX_THREAD_PRIO_PROTECT 1 173 #endif 174 175 #ifndef _POSIX_VDISABLE 176 #define _POSIX_VDISABLE 0 177 #endif 178 179 #ifndef NULL 180 #if defined(_LP64) 181 #define NULL 0L 182 #else 183 #define NULL 0 184 #endif 185 #endif 186 187 #define STDIN_FILENO 0 188 #define STDOUT_FILENO 1 189 #define STDERR_FILENO 2 190 191 /* 192 * Large File Summit-related announcement macros. The system supports both 193 * the additional and transitional Large File Summit interfaces. (The final 194 * two macros provide a finer granularity breakdown of _LFS64_LARGEFILE.) 195 */ 196 #define _LFS_LARGEFILE 1 197 #define _LFS64_LARGEFILE 1 198 #define _LFS64_STDIO 1 199 #define _LFS64_ASYNCHRONOUS_IO 1 200 201 /* large file compilation environment setup */ 202 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 203 #ifdef __PRAGMA_REDEFINE_EXTNAME 204 #pragma redefine_extname ftruncate ftruncate64 205 #pragma redefine_extname lseek lseek64 206 #pragma redefine_extname pread pread64 207 #pragma redefine_extname pwrite pwrite64 208 #pragma redefine_extname truncate truncate64 209 #pragma redefine_extname lockf lockf64 210 #pragma redefine_extname tell tell64 211 #else /* __PRAGMA_REDEFINE_EXTNAME */ 212 #define ftruncate ftruncate64 213 #define lseek lseek64 214 #define pread pread64 215 #define pwrite pwrite64 216 #define truncate truncate64 217 #define lockf lockf64 218 #define tell tell64 219 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 220 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */ 221 222 /* In the LP64 compilation environment, the APIs are already large file */ 223 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE) 224 #ifdef __PRAGMA_REDEFINE_EXTNAME 225 #pragma redefine_extname ftruncate64 ftruncate 226 #pragma redefine_extname lseek64 lseek 227 #pragma redefine_extname pread64 pread 228 #pragma redefine_extname pwrite64 pwrite 229 #pragma redefine_extname truncate64 truncate 230 #pragma redefine_extname lockf64 lockf 231 #pragma redefine_extname tell64 tell 232 #else /* __PRAGMA_REDEFINE_EXTNAME */ 233 #define ftruncate64 ftruncate 234 #define lseek64 lseek 235 #define pread64 pread 236 #define pwrite64 pwrite 237 #define truncate64 truncate 238 #define lockf64 lockf 239 #define tell64 tell 240 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 241 #endif /* _LP64 && _LARGEFILE64_SOURCE */ 242 243 #if defined(__STDC__) 244 245 extern int access(const char *, int); 246 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 247 extern int acct(const char *); 248 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 249 extern unsigned alarm(unsigned); 250 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */ 251 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 252 defined(__EXTENSIONS__) 253 extern int brk(void *); 254 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */ 255 extern int chdir(const char *); 256 extern int chown(const char *, uid_t, gid_t); 257 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */ 258 #if !defined(_POSIX_C_SOURCE) || (defined(_XOPEN_SOURCE) && \ 259 !defined(_XPG6)) || defined(__EXTENSIONS__) 260 extern int chroot(const char *); 261 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))... */ 262 extern int close(int); 263 #if defined(_XPG4) || defined(__EXTENSIONS__) 264 extern size_t confstr(int, char *, size_t); 265 extern char *crypt(const char *, const char *); 266 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */ 267 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 268 defined(__EXTENSIONS__) 269 extern char *ctermid(char *); 270 #endif /* (!defined(_POSIX_C_SOURCE) ... */ 271 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__) 272 extern char *ctermid_r(char *); 273 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */ 274 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */ 275 #if !defined(_XPG6) || defined(__EXTENSIONS__) 276 extern char *cuserid(char *); 277 #endif 278 extern int dup(int); 279 extern int dup2(int, int); 280 #if defined(_XPG4) || defined(__EXTENSIONS__) 281 extern void encrypt(char *, int); 282 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */ 283 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 284 extern void endusershell(void); 285 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 286 extern int execl(const char *, const char *, ...); 287 extern int execle(const char *, const char *, ...); 288 extern int execlp(const char *, const char *, ...); 289 extern int execv(const char *, char *const *); 290 extern int execve(const char *, char *const *, char *const *); 291 extern int execvp(const char *, char *const *); 292 extern void _exit(int) 293 __NORETURN; 294 /* 295 * The following fattach prototype is duplicated in <stropts.h>. The 296 * duplication is necessitated by XPG4.2 which requires the prototype 297 * be defined in <stropts.h>. 298 */ 299 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 300 extern int fattach(int, const char *); 301 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 302 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 303 extern int fchdir(int); 304 extern int fchown(int, uid_t, gid_t); 305 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 306 defined(__EXTENSIONS__) 307 extern int fchownat(int, const char *, uid_t, gid_t, int); 308 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */ 309 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 310 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 311 extern int fchroot(int); 312 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 313 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \ 314 defined(__EXTENSIONS__) 315 extern int fdatasync(int); 316 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */ 317 /* 318 * The following fdetach prototype is duplicated in <stropts.h>. The 319 * duplication is necessitated by XPG4.2 which requires the prototype 320 * be defined in <stropts.h>. 321 */ 322 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 323 extern int fdetach(const char *); 324 #endif /* !defined(__XOPEN_OR_POSIX)... */ 325 extern pid_t fork(void); 326 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 327 extern pid_t fork1(void); 328 extern pid_t forkall(void); 329 #endif /* !defined(__XOPEN_OR_POSIX)... */ 330 extern long fpathconf(int, int); 331 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \ 332 defined(__EXTENSIONS__) 333 extern int fsync(int); 334 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */ 335 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \ 336 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 337 defined(__EXTENSIONS__) 338 extern int ftruncate(int, off_t); 339 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */ 340 extern char *getcwd(char *, size_t); 341 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 342 defined(__EXTENSIONS__) 343 extern int getdtablesize(void); 344 #endif 345 extern gid_t getegid(void); 346 extern uid_t geteuid(void); 347 extern gid_t getgid(void); 348 extern int getgroups(int, gid_t *); 349 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 350 extern long gethostid(void); 351 #endif 352 #if defined(_XPG4_2) 353 extern int gethostname(char *, size_t); 354 #elif !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 355 extern int gethostname(char *, int); 356 #endif 357 extern char *getlogin(void); 358 #if defined(_XPG4) || defined(__EXTENSIONS__) 359 extern int getopt(int, char *const *, const char *); 360 extern char *optarg; 361 extern int opterr, optind, optopt; 362 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */ 363 #if !defined(_XPG6) || defined(__EXTENSIONS__) 364 extern char *getpass(const char *); 365 #endif 366 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */ 367 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 368 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */ 369 #if !defined(_XPG6) || defined(__EXTENSIONS__) 370 extern int getpagesize(void); 371 #endif 372 extern pid_t getpgid(pid_t); 373 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 374 extern pid_t getpid(void); 375 extern pid_t getppid(void); 376 extern pid_t getpgrp(void); 377 378 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 379 char *gettxt(const char *, const char *); 380 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 381 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 382 extern pid_t getsid(pid_t); 383 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 384 extern uid_t getuid(void); 385 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 386 extern char *getusershell(void); 387 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 388 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 389 extern char *getwd(char *); 390 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 391 /* 392 * The following ioctl prototype is duplicated in <stropts.h>. The 393 * duplication is necessitated by XPG4.2 which requires the prototype 394 * be defined in <stropts.h>. 395 */ 396 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 397 extern int ioctl(int, int, ...); 398 extern int isaexec(const char *, char *const *, char *const *); 399 extern int issetugid(void); 400 #endif 401 extern int isatty(int); 402 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 403 extern int lchown(const char *, uid_t, gid_t); 404 #endif 405 extern int link(const char *, const char *); 406 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 407 extern offset_t llseek(int, offset_t, int); 408 #endif 409 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 410 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 411 defined(__EXTENSIONS__) 412 extern int lockf(int, int, off_t); 413 #endif 414 extern off_t lseek(int, off_t, int); 415 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 416 defined(__EXTENSIONS__) 417 extern int nice(int); 418 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */ 419 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 420 extern int mincore(caddr_t, size_t, char *); 421 #endif 422 extern long pathconf(const char *, int); 423 extern int pause(void); 424 extern int pipe(int *); 425 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \ 426 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 427 defined(__EXTENSIONS__) 428 extern ssize_t pread(int, void *, size_t, off_t); 429 #endif 430 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 431 extern void profil(unsigned short *, size_t, unsigned long, unsigned int); 432 #endif 433 /* 434 * pthread_atfork() is also declared in <pthread.h> as per SUSv3. The 435 * declarations are identical. A change to either one may also require 436 * appropriate namespace updates in order to avoid redeclaration 437 * warnings in the case where both prototypes are exposed via inclusion 438 * of both <pthread.h> and <unistd.h>. 439 */ 440 #if !defined(__XOPEN_OR_POSIX) || \ 441 ((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \ 442 defined(__EXTENSIONS__) 443 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void)); 444 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */ 445 #if !defined(_LP64) && \ 446 (!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)) 447 extern int ptrace(int, pid_t, int, int); 448 #endif 449 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \ 450 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 451 defined(__EXTENSIONS__) 452 extern ssize_t pwrite(int, const void *, size_t, off_t); 453 #endif 454 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 455 /* per RFC 3542; This is also defined in netdb.h */ 456 extern int rcmd_af(char **, unsigned short, const char *, const char *, 457 const char *, int *, int); 458 #endif 459 extern ssize_t read(int, void *, size_t); 460 #if !defined(__XOPEN_OR_POSIX) || \ 461 defined(_XPG4_2) || defined(__EXTENSIONS__) 462 extern ssize_t readlink(const char *_RESTRICT_KYWD, char *_RESTRICT_KYWD, 463 size_t); 464 #endif 465 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \ 466 defined(__EXTENSIONS__) 467 extern int rename(const char *, const char *); 468 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */ 469 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 470 defined(__EXTENSIONS__) 471 extern int renameat(int, const char *, int, const char *); 472 #endif /* !defined(__XOPEN_OR_POSIX || defined(_ATFILE_SOURCE)... */ 473 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 474 extern int resolvepath(const char *, char *, size_t); 475 /* per RFC 3542; This is also defined in netdb.h */ 476 extern int rexec_af(char **, unsigned short, const char *, const char *, 477 const char *, int *, int); 478 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */ 479 extern int rmdir(const char *); 480 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 481 /* per RFC 3542; This is also defined in netdb.h */ 482 extern int rresvport_af(int *, int); 483 #endif 484 485 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 486 defined(__EXTENSIONS__) 487 extern void *sbrk(intptr_t); 488 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */ 489 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__) 490 extern int setegid(gid_t); 491 extern int seteuid(uid_t); 492 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */ 493 extern int setgid(gid_t); 494 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 495 extern int setgroups(int, const gid_t *); 496 extern int sethostname(char *, int); 497 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 498 extern int setpgid(pid_t, pid_t); 499 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 500 extern pid_t setpgrp(void); 501 extern int setregid(gid_t, gid_t); 502 extern int setreuid(uid_t, uid_t); 503 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 504 extern pid_t setsid(void); 505 extern int setuid(uid_t); 506 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 507 extern void setusershell(void); 508 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */ 509 extern unsigned sleep(unsigned); 510 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 511 extern int stime(const time_t *); 512 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 513 #if defined(_XPG4) 514 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */ 515 extern void swab(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, ssize_t); 516 #endif /* defined(_XPG4) */ 517 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 518 extern int symlink(const char *, const char *); 519 extern void sync(void); 520 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */ 521 #if defined(_XPG5) && !defined(_XPG6) 522 #ifdef __PRAGMA_REDEFINE_EXTNAME 523 #pragma redefine_extname sysconf __sysconf_xpg5 524 #else /* __PRAGMA_REDEFINE_EXTNAME */ 525 #define sysconf __sysconf_xpg5 526 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 527 #endif /* defined(_XPG5) && !defined(_XPG6) */ 528 extern long sysconf(int); 529 extern pid_t tcgetpgrp(int); 530 extern int tcsetpgrp(int, pid_t); 531 #if !defined(__XOPEN_OR_POSIX) || \ 532 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 533 defined(__EXTENSIONS__) 534 extern off_t tell(int); 535 #endif /* !defined(__XOPEN_OR_POSIX)... */ 536 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 537 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 538 defined(__EXTENSIONS__) 539 extern int truncate(const char *, off_t); 540 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 541 extern char *ttyname(int); 542 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 543 extern useconds_t ualarm(useconds_t, useconds_t); 544 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 545 extern int unlink(const char *); 546 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 547 defined(__EXTENSIONS__) 548 extern int unlinkat(int, const char *, int); 549 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */ 550 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 551 extern int usleep(useconds_t); 552 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 553 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 554 extern pid_t vfork(void); 555 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 556 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 557 extern void vhangup(void); 558 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 559 extern ssize_t write(int, const void *, size_t); 560 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 561 extern void yield(void); 562 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 563 564 /* transitional large file interface versions */ 565 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \ 566 !defined(__PRAGMA_REDEFINE_EXTNAME)) 567 extern int ftruncate64(int, off64_t); 568 extern off64_t lseek64(int, off64_t, int); 569 extern ssize_t pread64(int, void *, size_t, off64_t); 570 extern ssize_t pwrite64(int, const void *, size_t, off64_t); 571 extern off64_t tell64(int); 572 extern int truncate64(const char *, off64_t); 573 extern int lockf64(int, int, off64_t); 574 #endif /* _LARGEFILE64_SOURCE */ 575 576 #else /* __STDC__ */ 577 578 extern int access(); 579 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 580 extern int acct(); 581 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 582 extern unsigned alarm(); 583 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 584 defined(__EXTENSIONS__) 585 extern int brk(); 586 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */ 587 extern int chdir(); 588 extern int chown(); 589 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 590 defined(__EXTENSIONS__) 591 extern int chroot(); 592 #endif /* (!defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */ 593 extern int close(); 594 #if defined(_XPG4) || defined(__EXTENSIONS__) 595 extern size_t confstr(); 596 extern char *crypt(); 597 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */ 598 #if !defined(_POSIX_C_SOURCE) || defined(_XPG3) || defined(__EXTENSIONS__) 599 extern char *ctermid(); 600 #endif /* (!defined(_POSIX_C_SOURCE) || defined(_XPG3)... */ 601 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__) 602 extern char *ctermid_r(); 603 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */ 604 #if !defined(_XPG6) || defined(__EXTENSIONS__) 605 extern char *cuserid(); 606 #endif 607 extern int dup(); 608 extern int dup2(); 609 #if defined(_XPG4) || defined(__EXTENSIONS__) 610 extern void encrypt(); 611 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */ 612 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 613 extern void endusershell(); 614 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 615 extern int execl(); 616 extern int execle(); 617 extern int execlp(); 618 extern int execv(); 619 extern int execve(); 620 extern int execvp(); 621 extern void _exit(); 622 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 623 extern int fattach(); 624 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 625 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 626 extern int fchdir(); 627 extern int fchown(); 628 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 629 defined(__EXTENSIONS__) 630 extern int fchownat(); 631 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */ 632 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 633 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 634 extern int fchroot(); 635 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 636 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \ 637 defined(__EXTENSIONS__) 638 extern int fdatasync(); 639 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */ 640 #if !defined(__XOPEN_OR_POSIX) 641 extern int fdetach(); 642 #endif /* !defined(__XOPEN_OR_POSIX) */ 643 extern pid_t fork(); 644 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 645 extern pid_t fork1(); 646 extern pid_t forkall(); 647 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 648 extern long fpathconf(); 649 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \ 650 defined(__EXTENSIONS__) 651 extern int fsync(); 652 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */ 653 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \ 654 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 655 defined(__EXTENSIONS__) 656 extern int ftruncate(); 657 #endif /* !defined(__XOPEN_OR_POSIX) (_POSIX_C_SOURCE > 2)... */ 658 extern char *getcwd(); 659 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 660 defined(__EXTENSIONS__) 661 extern int getdtablesize(); 662 #endif 663 extern gid_t getegid(); 664 extern uid_t geteuid(); 665 extern gid_t getgid(); 666 extern int getgroups(); 667 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 668 extern long gethostid(); 669 #endif 670 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 671 extern int gethostname(); 672 #endif 673 extern char *getlogin(); 674 #if defined(_XPG4) || defined(__EXTENSIONS__) 675 extern int getopt(); 676 extern char *optarg; 677 extern int opterr, optind, optopt; 678 #if !defined(_XPG6) || defined(__EXTENSIONS__) 679 extern char *getpass(); 680 #endif 681 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */ 682 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 683 #if !defined(_XPG6) || defined(__EXTENSIONS__) 684 extern int getpagesize(); 685 #endif 686 extern pid_t getpgid(); 687 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 688 extern pid_t getpid(); 689 extern pid_t getppid(); 690 extern pid_t getpgrp(); 691 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 692 char *gettxt(); 693 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 694 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 695 extern pid_t getsid(); 696 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */ 697 extern uid_t getuid(); 698 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 699 extern char *getusershell(); 700 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 701 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 702 extern char *getwd(); 703 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 704 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 705 extern int ioctl(); 706 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 707 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 708 extern int isaexec(); 709 extern int issetugid(); 710 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 711 extern int isatty(); 712 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 713 extern int lchown(); 714 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */ 715 extern int link(); 716 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 717 extern offset_t llseek(); 718 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 719 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 720 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 721 defined(__EXTENSIONS__) 722 extern int lockf(); 723 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 724 extern off_t lseek(); 725 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 726 extern int mincore(); 727 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 728 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 729 defined(__EXTENSIONS__) 730 extern int nice(); 731 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */ 732 extern long pathconf(); 733 extern int pause(); 734 extern int pipe(); 735 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG5) || \ 736 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 737 defined(__EXTENSIONS__) 738 extern ssize_t pread(); 739 #endif 740 #if !defined(_LP64) && \ 741 (!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)) 742 extern void profil(); 743 extern int ptrace(); 744 #endif 745 #if !defined(__XOPEN_OR_POSIX) || \ 746 ((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \ 747 defined(__EXTENSIONS__) 748 extern int pthread_atfork(); 749 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */ 750 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG5) || \ 751 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 752 defined(__EXTENSIONS__) 753 extern ssize_t pwrite(); 754 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG5) */ 755 extern ssize_t read(); 756 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 757 /* per RFC 3542; This is also defined in netdb.h */ 758 extern int rcmd_af(); 759 #endif 760 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 761 extern ssize_t readlink(); 762 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 763 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \ 764 defined(__EXTENSIONS__) 765 extern int rename(); 766 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 767 defined(__EXTENSIONS__) 768 extern int renameat(); 769 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */ 770 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */ 771 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 772 extern int resolvepath(); 773 /* per RFC 3542; This is also defined in netdb.h */ 774 extern int rexec_af(); 775 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 776 extern int rmdir(); 777 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 778 /* per RFC 3542; This is also defined in netdb.h */ 779 extern int rresvport_af(); 780 #endif 781 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \ 782 defined(__EXTENSIONS__) 783 extern void *sbrk(); 784 #endif /* !defined(__XOPEN_OR_POSIX)|| (defined(_XPG4_2)... */ 785 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__) 786 extern int setegid(); 787 extern int seteuid(); 788 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */ 789 extern int setgid(); 790 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 791 extern int setgroups(); 792 extern int sethostname(); 793 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 794 extern int setpgid(); 795 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 796 extern pid_t setpgrp(); 797 extern int setregid(); 798 extern int setreuid(); 799 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 800 extern pid_t setsid(); 801 extern int setuid(); 802 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 803 extern void setusershell(); 804 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */ 805 extern unsigned sleep(); 806 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 807 extern int stime(); 808 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 809 #if defined(_XPG4) 810 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */ 811 extern void swab(); 812 #endif /* defined(_XPG4) */ 813 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 814 extern int symlink(); 815 extern void sync(); 816 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 817 #if defined(_XPG5) 818 #ifdef __PRAGMA_REDEFINE_EXTNAME 819 #pragma redefine_extname sysconf __sysconf_xpg5 820 extern long sysconf(); 821 #else /* __PRAGMA_REDEFINE_EXTNAME */ 822 extern long __sysconf_xpg5(); 823 #define sysconf __sysconf_xpg5 824 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 825 #endif /* defined(_XPG5) */ 826 extern pid_t tcgetpgrp(); 827 extern int tcsetpgrp(); 828 #if !defined(__XOPEN_OR_POSIX) || \ 829 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 830 defined(__EXTENSIONS__) 831 extern off_t tell(); 832 #endif /* !defined(__XOPEN_OR_POSIX)... */ 833 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 834 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \ 835 defined(__EXTENSIONS__) 836 extern int truncate(); 837 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 838 extern char *ttyname(); 839 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 840 extern useconds_t ualarm(); 841 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 842 extern int unlink(); 843 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \ 844 defined(__EXTENSIONS__) 845 extern int unlinkat(); 846 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */ 847 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 848 extern int usleep(); 849 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 850 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 851 extern pid_t vfork(); 852 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */ 853 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 854 extern void vhangup(); 855 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 856 extern ssize_t write(); 857 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 858 extern void yield(); 859 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 860 861 /* transitional large file interface versions */ 862 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \ 863 !defined(__PRAGMA_REDEFINE_EXTNAME)) 864 extern int ftruncate64(); 865 extern off64_t lseek64(); 866 extern ssize_t pread64(); 867 extern ssize_t pwrite64(); 868 extern off64_t tell64(); 869 extern int truncate64(); 870 extern int lockf64(); 871 #endif /* _LARGEFILE64_SOURCE */ 872 873 #endif /* __STDC__ */ 874 875 /* 876 * This atrocity is necessary on sparc because registers modified 877 * by the child get propagated back to the parent via the window 878 * save/restore mechanism. 879 */ 880 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 881 #if defined(__sparc) 882 #pragma unknown_control_flow(vfork) 883 #endif 884 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 885 886 /* 887 * getlogin_r() & ttyname_r() prototypes are defined here. 888 */ 889 890 /* 891 * Previous releases of Solaris, starting at 2.3, provided definitions of 892 * various functions as specified in POSIX.1c, Draft 6. For some of these 893 * functions, the final POSIX 1003.1c standard had a different number of 894 * arguments and return values. 895 * 896 * The following segment of this header provides support for the standard 897 * interfaces while supporting applications written under earlier 898 * releases. The application defines appropriate values of the feature 899 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate 900 * whether it was written to expect the Draft 6 or standard versions of 901 * these interfaces, before including this header. This header then 902 * provides a mapping from the source version of the interface to an 903 * appropriate binary interface. Such mappings permit an application 904 * to be built from libraries and objects which have mixed expectations 905 * of the definitions of these functions. 906 * 907 * For applications using the Draft 6 definitions, the binary symbol is the 908 * same as the source symbol, and no explicit mapping is needed. For the 909 * standard interface, the function func() is mapped to the binary symbol 910 * _posix_func(). The preferred mechanism for the remapping is a compiler 911 * #pragma. If the compiler does not provide such a #pragma, the header file 912 * defines a static function func() which calls the _posix_func() version; 913 * this has to be done instead of #define since POSIX specifies that an 914 * application can #undef the symbol and still be bound to the correct 915 * implementation. Unfortunately, the statics confuse lint so we fallback to 916 * #define in that case. 917 * 918 * NOTE: Support for the Draft 6 definitions is provided for compatibility 919 * only. New applications/libraries should use the standard definitions. 920 */ 921 922 #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \ 923 !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \ 924 defined(_POSIX_PTHREAD_SEMANTICS) 925 926 #if defined(__STDC__) 927 928 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 929 930 #ifdef __PRAGMA_REDEFINE_EXTNAME 931 #pragma redefine_extname getlogin_r __posix_getlogin_r 932 #pragma redefine_extname ttyname_r __posix_ttyname_r 933 extern int getlogin_r(char *, int); 934 extern int ttyname_r(int, char *, size_t); 935 #else /* __PRAGMA_REDEFINE_EXTNAME */ 936 937 extern int __posix_getlogin_r(char *, int); 938 extern int __posix_ttyname_r(int, char *, size_t); 939 940 #ifdef __lint 941 942 #define getlogin_r __posix_getlogin_r 943 #define ttyname_r __posix_ttyname_r 944 945 #else /* !__lint */ 946 947 static int 948 getlogin_r(char *__name, int __len) 949 { 950 return (__posix_getlogin_r(__name, __len)); 951 } 952 static int 953 ttyname_r(int __fildes, char *__buf, size_t __size) 954 { 955 return (__posix_ttyname_r(__fildes, __buf, __size)); 956 } 957 958 #endif /* !__lint */ 959 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 960 961 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 962 963 extern char *getlogin_r(char *, int); 964 extern char *ttyname_r(int, char *, int); 965 966 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 967 968 #else /* __STDC__ */ 969 970 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS) 971 972 #ifdef __PRAGMA_REDEFINE_EXTNAME 973 #pragma redefine_extname getlogin_r __posix_getlogin_r 974 #pragma redefine_extname ttyname_r __posix_ttyname_r 975 extern int getlogin_r(); 976 extern int ttyname_r(); 977 #else /* __PRAGMA_REDEFINE_EXTNAME */ 978 979 extern int __posix_getlogin_r(); 980 extern int __posix_ttyname_r(); 981 982 #ifdef __lint 983 984 #define getlogin_r __posix_getlogin_r 985 #define ttyname_r __posix_ttyname_r 986 987 #else /* !__lint */ 988 989 static int 990 getlogin_r(__name, __len) 991 char *__name; 992 int __len; 993 { 994 return (__posix_getlogin_r(__name, __len)); 995 } 996 static int 997 ttyname_r(__fildes, __buf, __size) 998 int __fildes; 999 char *__buf; 1000 size_t __size; 1001 { 1002 return (__posix_ttyname_r(__fildes, __buf, __size)); 1003 } 1004 #endif /* !__lint */ 1005 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 1006 1007 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 1008 1009 extern char *getlogin_r(); 1010 extern char *ttyname_r(); 1011 1012 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */ 1013 1014 #endif /* __STDC__ */ 1015 1016 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */ 1017 1018 #ifdef __cplusplus 1019 } 1020 #endif 1021 1022 #endif /* _UNISTD_H */ 1023