1 #ifndef _UNISTD_H 2 #define _UNISTD_H 3 4 #ifdef __cplusplus 5 extern "C" { 6 #endif 7 8 #include <features.h> 9 10 #define STDIN_FILENO 0 11 #define STDOUT_FILENO 1 12 #define STDERR_FILENO 2 13 14 #define SEEK_SET 0 15 #define SEEK_CUR 1 16 #define SEEK_END 2 17 #ifndef __LITEOS_A__ 18 #define SEEK_DATA 3 19 #define SEEK_HOLE 4 20 #endif 21 22 #ifdef __LITEOS_A__ 23 #ifdef __cplusplus 24 #define NULL 0L 25 #else 26 #define NULL ((void*)0) 27 #endif 28 #else 29 #if __cplusplus >= 201103L 30 #define NULL nullptr 31 #elif defined(__cplusplus) 32 #define NULL 0L 33 #else 34 #define NULL ((void*)0) 35 #endif 36 #endif 37 38 #define __NEED_size_t 39 #define __NEED_ssize_t 40 #define __NEED_uid_t 41 #define __NEED_gid_t 42 #define __NEED_off_t 43 #define __NEED_pid_t 44 #define __NEED_intptr_t 45 #define __NEED_useconds_t 46 47 #include <bits/alltypes.h> 48 49 int pipe(int [2]); 50 int pipe2(int [2], int); 51 int close(int); 52 int posix_close(int, int); 53 int dup(int); 54 int dup2(int, int); 55 int dup3(int, int, int); 56 off_t lseek(int, off_t, int); 57 int fsync(int); 58 int fdatasync(int); 59 60 ssize_t read(int, void *, size_t); 61 ssize_t write(int, const void *, size_t); 62 ssize_t pread(int, void *, size_t, off_t); 63 ssize_t pwrite(int, const void *, size_t, off_t); 64 65 int chown(const char *, uid_t, gid_t); 66 int fchown(int, uid_t, gid_t); 67 int lchown(const char *, uid_t, gid_t); 68 int fchownat(int, const char *, uid_t, gid_t, int); 69 70 int link(const char *, const char *); 71 int linkat(int, const char *, int, const char *, int); 72 int symlink(const char *, const char *); 73 int symlinkat(const char *, int, const char *); 74 ssize_t readlink(const char *__restrict, char *__restrict, size_t); 75 ssize_t readlinkat(int, const char *__restrict, char *__restrict, size_t); 76 int unlink(const char *); 77 int unlinkat(int, const char *, int); 78 int rmdir(const char *); 79 int truncate(const char *, off_t); 80 int ftruncate(int, off_t); 81 82 #define F_OK 0 83 #define R_OK 4 84 #define W_OK 2 85 #define X_OK 1 86 87 int access(const char *, int); 88 int faccessat(int, const char *, int, int); 89 90 #ifdef __LITEOS_A__ 91 /* Format options */ 92 #define FMT_FAT 0x01 93 #define FMT_FAT32 0x02 94 #define FMT_ANY 0x07 95 #define FMT_ERASE 0x08 96 97 /** 98 * @brief format FAT device (SD card, U disk, and MMC card), this function is OHOS-specific 99 * @param dev device name. 100 * @param sectors sectors per cluster, can be 0 OR power of 2. The sector size for standard FAT volumes is 512 bytes. 101 * -- sector number is 0 OR >128: automatically choose the appropriate cluster size. 102 * -- sector number is 1 ~ 128: cluster size = sectors per cluster * 512B. 103 * @param option file system type. 104 * -- FMT_FAT 105 * -- FMT_FAT32 106 * -- FMT_ANY 107 * -- FMT_ERASE (USB not supported) 108 * @return format result 109 * @retval -1 format error 110 * @retval 0 format successful 111 */ 112 int format(const char *dev, int sectors, int option); 113 #endif 114 115 int chdir(const char *); 116 int fchdir(int); 117 char *getcwd(char *, size_t); 118 119 unsigned alarm(unsigned); 120 unsigned sleep(unsigned); 121 int pause(void); 122 123 pid_t fork(void); 124 #ifndef __LITEOS_A__ 125 pid_t _Fork(void); 126 #endif 127 int execve(const char *, char *const [], char *const []); 128 int execv(const char *, char *const []); 129 int execle(const char *, const char *, ...); 130 int execl(const char *, const char *, ...); 131 int execvp(const char *, char *const []); 132 int execlp(const char *, const char *, ...); 133 int fexecve(int, char *const [], char *const []); 134 _Noreturn void _exit(int); 135 136 /** 137 * @brief Get the pid in the system namespace 138 * 139 * get the pid in the system namespace, used to globally mark processes in the pid sandbox.\n 140 * 141 * @param NA 142 * @return pid 143 * @since 4.1 144 */ 145 pid_t getprocpid(void); 146 147 /** 148 * @brief Get the tid in the system namespace 149 * 150 * get the tid in the system namespace, used to globally mark processes in the pid sandbox.\n 151 * 152 * @param NA 153 * @return pid 154 * @since 4.1 155 */ 156 pid_t getproctid(void); 157 pid_t getpid(void); 158 pid_t getppid(void); 159 pid_t getpgrp(void); 160 pid_t getpgid(pid_t); 161 int setpgid(pid_t, pid_t); 162 pid_t setsid(void); 163 pid_t getsid(pid_t); 164 char *ttyname(int); 165 int ttyname_r(int, char *, size_t); 166 int isatty(int); 167 pid_t tcgetpgrp(int); 168 int tcsetpgrp(int, pid_t); 169 170 uid_t getuid(void); 171 uid_t geteuid(void); 172 gid_t getgid(void); 173 gid_t getegid(void); 174 int getgroups(int, gid_t []); 175 int setuid(uid_t); 176 int seteuid(uid_t); 177 int setgid(gid_t); 178 int setegid(gid_t); 179 180 char *getlogin(void); 181 int getlogin_r(char *, size_t); 182 int gethostname(char *, size_t); 183 char *ctermid(char *); 184 185 int getopt(int, char * const [], const char *); 186 extern char *optarg; 187 extern int optind, opterr, optopt; 188 189 long pathconf(const char *, int); 190 long fpathconf(int, int); 191 long sysconf(int); 192 size_t confstr(int, char *, size_t); 193 194 #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 195 #define F_ULOCK 0 196 #define F_LOCK 1 197 #define F_TLOCK 2 198 #define F_TEST 3 199 int setreuid(uid_t, uid_t); 200 int setregid(gid_t, gid_t); 201 int lockf(int, int, off_t); 202 long gethostid(void); 203 int nice(int); 204 void sync(void); 205 pid_t setpgrp(void); 206 char *crypt(const char *, const char *); 207 void encrypt(char *, int); 208 void swab(const void *__restrict, void *__restrict, ssize_t); 209 #endif 210 211 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ 212 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 213 int usleep(unsigned); 214 unsigned ualarm(unsigned, unsigned); 215 #endif 216 217 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 218 #define L_SET 0 219 #define L_INCR 1 220 #define L_XTND 2 221 int brk(void *); 222 void *sbrk(intptr_t); 223 pid_t vfork(void); 224 int vhangup(void); 225 int chroot(const char *); 226 int getpagesize(void); 227 int getdtablesize(void); 228 int sethostname(const char *, size_t); 229 int getdomainname(char *, size_t); 230 int setdomainname(const char *, size_t); 231 int setgroups(size_t, const gid_t *); 232 char *getpass(const char *); 233 int daemon(int, int); 234 void setusershell(void); 235 void endusershell(void); 236 char *getusershell(void); 237 int acct(const char *); 238 long syscall(long, ...); 239 int execvpe(const char *, char *const [], char *const []); 240 int issetugid(void); 241 int getentropy(void *, size_t); 242 extern int optreset; 243 #endif 244 245 #ifdef _GNU_SOURCE 246 extern char **environ; 247 int setresuid(uid_t, uid_t, uid_t); 248 int setresgid(gid_t, gid_t, gid_t); 249 int getresuid(uid_t *, uid_t *, uid_t *); 250 int getresgid(gid_t *, gid_t *, gid_t *); 251 char *get_current_dir_name(void); 252 int syncfs(int); 253 int euidaccess(const char *, int); 254 int eaccess(const char *, int); 255 ssize_t copy_file_range(int, off_t *, int, off_t *, size_t, unsigned); 256 #ifndef __LITEOS_A__ 257 pid_t gettid(void); 258 #endif 259 #endif 260 261 #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE) 262 #define lseek64 lseek 263 #define pread64 pread 264 #define pwrite64 pwrite 265 #define truncate64 truncate 266 #define ftruncate64 ftruncate 267 #define lockf64 lockf 268 #define off64_t off_t 269 #endif 270 271 #define POSIX_CLOSE_RESTART 0 272 273 #define _XOPEN_VERSION 700 274 #define _XOPEN_UNIX 1 275 #define _XOPEN_ENH_I18N 1 276 277 #define _POSIX_VERSION 200809L 278 #define _POSIX2_VERSION _POSIX_VERSION 279 280 #define _POSIX_ADVISORY_INFO _POSIX_VERSION 281 #define _POSIX_CHOWN_RESTRICTED 1 282 #define _POSIX_IPV6 _POSIX_VERSION 283 #define _POSIX_JOB_CONTROL 1 284 #define _POSIX_MAPPED_FILES _POSIX_VERSION 285 #define _POSIX_MEMLOCK _POSIX_VERSION 286 #define _POSIX_MEMLOCK_RANGE _POSIX_VERSION 287 #define _POSIX_MEMORY_PROTECTION _POSIX_VERSION 288 #define _POSIX_MESSAGE_PASSING _POSIX_VERSION 289 #define _POSIX_FSYNC _POSIX_VERSION 290 #define _POSIX_NO_TRUNC 1 291 #define _POSIX_RAW_SOCKETS _POSIX_VERSION 292 #define _POSIX_REALTIME_SIGNALS _POSIX_VERSION 293 #define _POSIX_REGEXP 1 294 #define _POSIX_SAVED_IDS 1 295 #define _POSIX_SHELL 1 296 #define _POSIX_SPAWN _POSIX_VERSION 297 #define _POSIX_VDISABLE 0 298 299 #define _POSIX_THREADS _POSIX_VERSION 300 #define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION 301 #define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION 302 #define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION 303 #define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION 304 #define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION 305 #define _POSIX_THREAD_CPUTIME _POSIX_VERSION 306 #define _POSIX_TIMERS _POSIX_VERSION 307 #define _POSIX_TIMEOUTS _POSIX_VERSION 308 #define _POSIX_MONOTONIC_CLOCK _POSIX_VERSION 309 #define _POSIX_CPUTIME _POSIX_VERSION 310 #define _POSIX_CLOCK_SELECTION _POSIX_VERSION 311 #define _POSIX_BARRIERS _POSIX_VERSION 312 #define _POSIX_SPIN_LOCKS _POSIX_VERSION 313 #define _POSIX_READER_WRITER_LOCKS _POSIX_VERSION 314 #define _POSIX_ASYNCHRONOUS_IO _POSIX_VERSION 315 #define _POSIX_SEMAPHORES _POSIX_VERSION 316 #define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION 317 318 #define _POSIX2_C_BIND _POSIX_VERSION 319 320 #include <bits/posix.h> 321 322 323 324 #define _PC_LINK_MAX 0 325 #define _PC_MAX_CANON 1 326 #define _PC_MAX_INPUT 2 327 #define _PC_NAME_MAX 3 328 #define _PC_PATH_MAX 4 329 #define _PC_PIPE_BUF 5 330 #define _PC_CHOWN_RESTRICTED 6 331 #define _PC_NO_TRUNC 7 332 #define _PC_VDISABLE 8 333 #define _PC_SYNC_IO 9 334 #define _PC_ASYNC_IO 10 335 #define _PC_PRIO_IO 11 336 #define _PC_SOCK_MAXBUF 12 337 #define _PC_FILESIZEBITS 13 338 #define _PC_REC_INCR_XFER_SIZE 14 339 #define _PC_REC_MAX_XFER_SIZE 15 340 #define _PC_REC_MIN_XFER_SIZE 16 341 #define _PC_REC_XFER_ALIGN 17 342 #define _PC_ALLOC_SIZE_MIN 18 343 #define _PC_SYMLINK_MAX 19 344 #define _PC_2_SYMLINKS 20 345 346 #define _SC_ARG_MAX 0 347 #define _SC_CHILD_MAX 1 348 #define _SC_CLK_TCK 2 349 #define _SC_NGROUPS_MAX 3 350 #define _SC_OPEN_MAX 4 351 #define _SC_STREAM_MAX 5 352 #define _SC_TZNAME_MAX 6 353 #define _SC_JOB_CONTROL 7 354 #define _SC_SAVED_IDS 8 355 #define _SC_REALTIME_SIGNALS 9 356 #define _SC_PRIORITY_SCHEDULING 10 357 #define _SC_TIMERS 11 358 #define _SC_ASYNCHRONOUS_IO 12 359 #define _SC_PRIORITIZED_IO 13 360 #define _SC_SYNCHRONIZED_IO 14 361 #define _SC_FSYNC 15 362 #define _SC_MAPPED_FILES 16 363 #define _SC_MEMLOCK 17 364 #define _SC_MEMLOCK_RANGE 18 365 #define _SC_MEMORY_PROTECTION 19 366 #define _SC_MESSAGE_PASSING 20 367 #define _SC_SEMAPHORES 21 368 #define _SC_SHARED_MEMORY_OBJECTS 22 369 #define _SC_AIO_LISTIO_MAX 23 370 #define _SC_AIO_MAX 24 371 #define _SC_AIO_PRIO_DELTA_MAX 25 372 #define _SC_DELAYTIMER_MAX 26 373 #define _SC_MQ_OPEN_MAX 27 374 #define _SC_MQ_PRIO_MAX 28 375 #define _SC_VERSION 29 376 #define _SC_PAGE_SIZE 30 377 #define _SC_PAGESIZE 30 /* !! */ 378 #define _SC_RTSIG_MAX 31 379 #define _SC_SEM_NSEMS_MAX 32 380 #define _SC_SEM_VALUE_MAX 33 381 #define _SC_SIGQUEUE_MAX 34 382 #define _SC_TIMER_MAX 35 383 #define _SC_BC_BASE_MAX 36 384 #define _SC_BC_DIM_MAX 37 385 #define _SC_BC_SCALE_MAX 38 386 #define _SC_BC_STRING_MAX 39 387 #define _SC_COLL_WEIGHTS_MAX 40 388 #define _SC_EXPR_NEST_MAX 42 389 #define _SC_LINE_MAX 43 390 #define _SC_RE_DUP_MAX 44 391 #define _SC_2_VERSION 46 392 #define _SC_2_C_BIND 47 393 #define _SC_2_C_DEV 48 394 #define _SC_2_FORT_DEV 49 395 #define _SC_2_FORT_RUN 50 396 #define _SC_2_SW_DEV 51 397 #define _SC_2_LOCALEDEF 52 398 #define _SC_UIO_MAXIOV 60 /* !! */ 399 #define _SC_IOV_MAX 60 400 #define _SC_THREADS 67 401 #define _SC_THREAD_SAFE_FUNCTIONS 68 402 #define _SC_GETGR_R_SIZE_MAX 69 403 #define _SC_GETPW_R_SIZE_MAX 70 404 #define _SC_LOGIN_NAME_MAX 71 405 #define _SC_TTY_NAME_MAX 72 406 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 73 407 #define _SC_THREAD_KEYS_MAX 74 408 #define _SC_THREAD_STACK_MIN 75 409 #define _SC_THREAD_THREADS_MAX 76 410 #define _SC_THREAD_ATTR_STACKADDR 77 411 #define _SC_THREAD_ATTR_STACKSIZE 78 412 #define _SC_THREAD_PRIORITY_SCHEDULING 79 413 #define _SC_THREAD_PRIO_INHERIT 80 414 #define _SC_THREAD_PRIO_PROTECT 81 415 #define _SC_THREAD_PROCESS_SHARED 82 416 #define _SC_NPROCESSORS_CONF 83 417 #define _SC_NPROCESSORS_ONLN 84 418 #define _SC_PHYS_PAGES 85 419 #define _SC_AVPHYS_PAGES 86 420 #define _SC_ATEXIT_MAX 87 421 #define _SC_PASS_MAX 88 422 #define _SC_XOPEN_VERSION 89 423 #define _SC_XOPEN_XCU_VERSION 90 424 #define _SC_XOPEN_UNIX 91 425 #define _SC_XOPEN_CRYPT 92 426 #define _SC_XOPEN_ENH_I18N 93 427 #define _SC_XOPEN_SHM 94 428 #define _SC_2_CHAR_TERM 95 429 #define _SC_2_UPE 97 430 #define _SC_XOPEN_XPG2 98 431 #define _SC_XOPEN_XPG3 99 432 #define _SC_XOPEN_XPG4 100 433 #define _SC_NZERO 109 434 #define _SC_XBS5_ILP32_OFF32 125 435 #define _SC_XBS5_ILP32_OFFBIG 126 436 #define _SC_XBS5_LP64_OFF64 127 437 #define _SC_XBS5_LPBIG_OFFBIG 128 438 #define _SC_XOPEN_LEGACY 129 439 #define _SC_XOPEN_REALTIME 130 440 #define _SC_XOPEN_REALTIME_THREADS 131 441 #define _SC_ADVISORY_INFO 132 442 #define _SC_BARRIERS 133 443 #define _SC_CLOCK_SELECTION 137 444 #define _SC_CPUTIME 138 445 #define _SC_THREAD_CPUTIME 139 446 #define _SC_MONOTONIC_CLOCK 149 447 #define _SC_READER_WRITER_LOCKS 153 448 #define _SC_SPIN_LOCKS 154 449 #define _SC_REGEXP 155 450 #define _SC_SHELL 157 451 #define _SC_SPAWN 159 452 #define _SC_SPORADIC_SERVER 160 453 #define _SC_THREAD_SPORADIC_SERVER 161 454 #define _SC_TIMEOUTS 164 455 #define _SC_TYPED_MEMORY_OBJECTS 165 456 #define _SC_2_PBS 168 457 #define _SC_2_PBS_ACCOUNTING 169 458 #define _SC_2_PBS_LOCATE 170 459 #define _SC_2_PBS_MESSAGE 171 460 #define _SC_2_PBS_TRACK 172 461 #define _SC_SYMLOOP_MAX 173 462 #define _SC_STREAMS 174 463 #define _SC_2_PBS_CHECKPOINT 175 464 #define _SC_V6_ILP32_OFF32 176 465 #define _SC_V6_ILP32_OFFBIG 177 466 #define _SC_V6_LP64_OFF64 178 467 #define _SC_V6_LPBIG_OFFBIG 179 468 #define _SC_HOST_NAME_MAX 180 469 #define _SC_TRACE 181 470 #define _SC_TRACE_EVENT_FILTER 182 471 #define _SC_TRACE_INHERIT 183 472 #define _SC_TRACE_LOG 184 473 474 #define _SC_IPV6 235 475 #define _SC_RAW_SOCKETS 236 476 #define _SC_V7_ILP32_OFF32 237 477 #define _SC_V7_ILP32_OFFBIG 238 478 #define _SC_V7_LP64_OFF64 239 479 #define _SC_V7_LPBIG_OFFBIG 240 480 #define _SC_SS_REPL_MAX 241 481 #define _SC_TRACE_EVENT_NAME_MAX 242 482 #define _SC_TRACE_NAME_MAX 243 483 #define _SC_TRACE_SYS_MAX 244 484 #define _SC_TRACE_USER_EVENT_MAX 245 485 #define _SC_XOPEN_STREAMS 246 486 #define _SC_THREAD_ROBUST_PRIO_INHERIT 247 487 #define _SC_THREAD_ROBUST_PRIO_PROTECT 248 488 #define _SC_MINSIGSTKSZ 249 489 #define _SC_SIGSTKSZ 250 490 491 #define _CS_PATH 0 492 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 1 493 #define _CS_GNU_LIBC_VERSION 2 494 #define _CS_GNU_LIBPTHREAD_VERSION 3 495 #define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS 4 496 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 5 497 498 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 1116 499 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 1117 500 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 1118 501 #define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS 1119 502 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 1120 503 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 1121 504 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 1122 505 #define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS 1123 506 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 1124 507 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 1125 508 #define _CS_POSIX_V6_LP64_OFF64_LIBS 1126 509 #define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS 1127 510 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 1128 511 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 1129 512 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 1130 513 #define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS 1131 514 #define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 1132 515 #define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 1133 516 #define _CS_POSIX_V7_ILP32_OFF32_LIBS 1134 517 #define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS 1135 518 #define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 1136 519 #define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 1137 520 #define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 1138 521 #define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS 1139 522 #define _CS_POSIX_V7_LP64_OFF64_CFLAGS 1140 523 #define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 1141 524 #define _CS_POSIX_V7_LP64_OFF64_LIBS 1142 525 #define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS 1143 526 #define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 1144 527 #define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 1145 528 #define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 1146 529 #define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS 1147 530 #define _CS_V6_ENV 1148 531 #define _CS_V7_ENV 1149 532 #define _CS_POSIX_V7_THREADS_CFLAGS 1150 533 #define _CS_POSIX_V7_THREADS_LDFLAGS 1151 534 535 #ifdef _GNU_SOURCE 536 #ifndef TEMP_FAILURE_RETRY 537 #define MUSL_TEMP_FAILURE_RETRY(expression) \ 538 (__extension__ \ 539 ({ long int __result; \ 540 do __result = (long int)(expression); \ 541 while(__result == -1L && errno == EINTR); \ 542 __result;})) 543 544 #define TEMP_FAILURE_RETRY(expression) MUSL_TEMP_FAILURE_RETRY(expression) 545 #endif 546 #endif 547 548 #ifndef __LITEOS__ 549 #include <fortify/unistd.h> 550 #endif 551 #ifdef __cplusplus 552 } 553 #endif 554 555 #endif 556