fix error return value for cuserid
[musl.git] / include / unistd.h
blob130640260368aa20adec44d0fee0b22c90036947
1 #ifndef _UNISTD_H
2 #define _UNISTD_H
4 #ifdef __cplusplus
5 extern "C" {
6 #endif
8 #include <features.h>
10 #define STDIN_FILENO 0
11 #define STDOUT_FILENO 1
12 #define STDERR_FILENO 2
14 #define SEEK_SET 0
15 #define SEEK_CUR 1
16 #define SEEK_END 2
18 #ifdef __cplusplus
19 #define NULL 0L
20 #else
21 #define NULL ((void*)0)
22 #endif
24 #define __NEED_size_t
25 #define __NEED_ssize_t
26 #define __NEED_uid_t
27 #define __NEED_gid_t
28 #define __NEED_off_t
29 #define __NEED_pid_t
30 #define __NEED_intptr_t
31 #define __NEED_useconds_t
33 #include <bits/alltypes.h>
35 int pipe(int [2]);
36 int pipe2(int [2], int);
37 int close(int);
38 int posix_close(int, int);
39 int dup(int);
40 int dup2(int, int);
41 int dup3(int, int, int);
42 off_t lseek(int, off_t, int);
43 int fsync(int);
44 int fdatasync(int);
46 ssize_t read(int, void *, size_t);
47 ssize_t write(int, const void *, size_t);
48 ssize_t pread(int, void *, size_t, off_t);
49 ssize_t pwrite(int, const void *, size_t, off_t);
51 int chown(const char *, uid_t, gid_t);
52 int fchown(int, uid_t, gid_t);
53 int lchown(const char *, uid_t, gid_t);
54 int fchownat(int, const char *, uid_t, gid_t, int);
56 int link(const char *, const char *);
57 int linkat(int, const char *, int, const char *, int);
58 int symlink(const char *, const char *);
59 int symlinkat(const char *, int, const char *);
60 ssize_t readlink(const char *__restrict, char *__restrict, size_t);
61 ssize_t readlinkat(int, const char *__restrict, char *__restrict, size_t);
62 int unlink(const char *);
63 int unlinkat(int, const char *, int);
64 int rmdir(const char *);
65 int truncate(const char *, off_t);
66 int ftruncate(int, off_t);
68 #define F_OK 0
69 #define R_OK 4
70 #define W_OK 2
71 #define X_OK 1
73 int access(const char *, int);
74 int faccessat(int, const char *, int, int);
76 int chdir(const char *);
77 int fchdir(int);
78 char *getcwd(char *, size_t);
80 unsigned alarm(unsigned);
81 unsigned sleep(unsigned);
82 int pause(void);
84 pid_t fork(void);
85 pid_t _Fork(void);
86 int execve(const char *, char *const [], char *const []);
87 int execv(const char *, char *const []);
88 int execle(const char *, const char *, ...);
89 int execl(const char *, const char *, ...);
90 int execvp(const char *, char *const []);
91 int execlp(const char *, const char *, ...);
92 int fexecve(int, char *const [], char *const []);
93 _Noreturn void _exit(int);
95 pid_t getpid(void);
96 pid_t getppid(void);
97 pid_t getpgrp(void);
98 pid_t getpgid(pid_t);
99 int setpgid(pid_t, pid_t);
100 pid_t setsid(void);
101 pid_t getsid(pid_t);
102 char *ttyname(int);
103 int ttyname_r(int, char *, size_t);
104 int isatty(int);
105 pid_t tcgetpgrp(int);
106 int tcsetpgrp(int, pid_t);
108 uid_t getuid(void);
109 uid_t geteuid(void);
110 gid_t getgid(void);
111 gid_t getegid(void);
112 int getgroups(int, gid_t []);
113 int setuid(uid_t);
114 int seteuid(uid_t);
115 int setgid(gid_t);
116 int setegid(gid_t);
118 char *getlogin(void);
119 int getlogin_r(char *, size_t);
120 int gethostname(char *, size_t);
121 char *ctermid(char *);
123 int getopt(int, char * const [], const char *);
124 extern char *optarg;
125 extern int optind, opterr, optopt;
127 long pathconf(const char *, int);
128 long fpathconf(int, int);
129 long sysconf(int);
130 size_t confstr(int, char *, size_t);
132 #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
133 #define F_ULOCK 0
134 #define F_LOCK 1
135 #define F_TLOCK 2
136 #define F_TEST 3
137 int setreuid(uid_t, uid_t);
138 int setregid(gid_t, gid_t);
139 int lockf(int, int, off_t);
140 long gethostid(void);
141 int nice(int);
142 void sync(void);
143 pid_t setpgrp(void);
144 char *crypt(const char *, const char *);
145 void encrypt(char *, int);
146 void swab(const void *__restrict, void *__restrict, ssize_t);
147 #endif
149 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
150 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
151 int usleep(unsigned);
152 unsigned ualarm(unsigned, unsigned);
153 #endif
155 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
156 #define L_SET 0
157 #define L_INCR 1
158 #define L_XTND 2
159 int brk(void *);
160 void *sbrk(intptr_t);
161 pid_t vfork(void);
162 int vhangup(void);
163 int chroot(const char *);
164 int getpagesize(void);
165 int getdtablesize(void);
166 int sethostname(const char *, size_t);
167 int getdomainname(char *, size_t);
168 int setdomainname(const char *, size_t);
169 int setgroups(size_t, const gid_t *);
170 char *getpass(const char *);
171 int daemon(int, int);
172 void setusershell(void);
173 void endusershell(void);
174 char *getusershell(void);
175 int acct(const char *);
176 long syscall(long, ...);
177 int execvpe(const char *, char *const [], char *const []);
178 int issetugid(void);
179 int getentropy(void *, size_t);
180 extern int optreset;
181 #endif
183 #ifdef _GNU_SOURCE
184 extern char **environ;
185 int setresuid(uid_t, uid_t, uid_t);
186 int setresgid(gid_t, gid_t, gid_t);
187 int getresuid(uid_t *, uid_t *, uid_t *);
188 int getresgid(gid_t *, gid_t *, gid_t *);
189 char *get_current_dir_name(void);
190 int syncfs(int);
191 int euidaccess(const char *, int);
192 int eaccess(const char *, int);
193 ssize_t copy_file_range(int, off_t *, int, off_t *, size_t, unsigned);
194 pid_t gettid(void);
195 #endif
197 #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
198 #define lseek64 lseek
199 #define pread64 pread
200 #define pwrite64 pwrite
201 #define truncate64 truncate
202 #define ftruncate64 ftruncate
203 #define lockf64 lockf
204 #define off64_t off_t
205 #endif
207 #define POSIX_CLOSE_RESTART 0
209 #define _XOPEN_VERSION 700
210 #define _XOPEN_UNIX 1
211 #define _XOPEN_ENH_I18N 1
213 #define _POSIX_VERSION 200809L
214 #define _POSIX2_VERSION _POSIX_VERSION
216 #define _POSIX_ADVISORY_INFO _POSIX_VERSION
217 #define _POSIX_CHOWN_RESTRICTED 1
218 #define _POSIX_IPV6 _POSIX_VERSION
219 #define _POSIX_JOB_CONTROL 1
220 #define _POSIX_MAPPED_FILES _POSIX_VERSION
221 #define _POSIX_MEMLOCK _POSIX_VERSION
222 #define _POSIX_MEMLOCK_RANGE _POSIX_VERSION
223 #define _POSIX_MEMORY_PROTECTION _POSIX_VERSION
224 #define _POSIX_MESSAGE_PASSING _POSIX_VERSION
225 #define _POSIX_FSYNC _POSIX_VERSION
226 #define _POSIX_NO_TRUNC 1
227 #define _POSIX_RAW_SOCKETS _POSIX_VERSION
228 #define _POSIX_REALTIME_SIGNALS _POSIX_VERSION
229 #define _POSIX_REGEXP 1
230 #define _POSIX_SAVED_IDS 1
231 #define _POSIX_SHELL 1
232 #define _POSIX_SPAWN _POSIX_VERSION
233 #define _POSIX_VDISABLE 0
235 #define _POSIX_THREADS _POSIX_VERSION
236 #define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION
237 #define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
238 #define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION
239 #define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION
240 #define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION
241 #define _POSIX_THREAD_CPUTIME _POSIX_VERSION
242 #define _POSIX_TIMERS _POSIX_VERSION
243 #define _POSIX_TIMEOUTS _POSIX_VERSION
244 #define _POSIX_MONOTONIC_CLOCK _POSIX_VERSION
245 #define _POSIX_CPUTIME _POSIX_VERSION
246 #define _POSIX_CLOCK_SELECTION _POSIX_VERSION
247 #define _POSIX_BARRIERS _POSIX_VERSION
248 #define _POSIX_SPIN_LOCKS _POSIX_VERSION
249 #define _POSIX_READER_WRITER_LOCKS _POSIX_VERSION
250 #define _POSIX_ASYNCHRONOUS_IO _POSIX_VERSION
251 #define _POSIX_SEMAPHORES _POSIX_VERSION
252 #define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION
254 #define _POSIX2_C_BIND _POSIX_VERSION
256 #include <bits/posix.h>
260 #define _PC_LINK_MAX 0
261 #define _PC_MAX_CANON 1
262 #define _PC_MAX_INPUT 2
263 #define _PC_NAME_MAX 3
264 #define _PC_PATH_MAX 4
265 #define _PC_PIPE_BUF 5
266 #define _PC_CHOWN_RESTRICTED 6
267 #define _PC_NO_TRUNC 7
268 #define _PC_VDISABLE 8
269 #define _PC_SYNC_IO 9
270 #define _PC_ASYNC_IO 10
271 #define _PC_PRIO_IO 11
272 #define _PC_SOCK_MAXBUF 12
273 #define _PC_FILESIZEBITS 13
274 #define _PC_REC_INCR_XFER_SIZE 14
275 #define _PC_REC_MAX_XFER_SIZE 15
276 #define _PC_REC_MIN_XFER_SIZE 16
277 #define _PC_REC_XFER_ALIGN 17
278 #define _PC_ALLOC_SIZE_MIN 18
279 #define _PC_SYMLINK_MAX 19
280 #define _PC_2_SYMLINKS 20
282 #define _SC_ARG_MAX 0
283 #define _SC_CHILD_MAX 1
284 #define _SC_CLK_TCK 2
285 #define _SC_NGROUPS_MAX 3
286 #define _SC_OPEN_MAX 4
287 #define _SC_STREAM_MAX 5
288 #define _SC_TZNAME_MAX 6
289 #define _SC_JOB_CONTROL 7
290 #define _SC_SAVED_IDS 8
291 #define _SC_REALTIME_SIGNALS 9
292 #define _SC_PRIORITY_SCHEDULING 10
293 #define _SC_TIMERS 11
294 #define _SC_ASYNCHRONOUS_IO 12
295 #define _SC_PRIORITIZED_IO 13
296 #define _SC_SYNCHRONIZED_IO 14
297 #define _SC_FSYNC 15
298 #define _SC_MAPPED_FILES 16
299 #define _SC_MEMLOCK 17
300 #define _SC_MEMLOCK_RANGE 18
301 #define _SC_MEMORY_PROTECTION 19
302 #define _SC_MESSAGE_PASSING 20
303 #define _SC_SEMAPHORES 21
304 #define _SC_SHARED_MEMORY_OBJECTS 22
305 #define _SC_AIO_LISTIO_MAX 23
306 #define _SC_AIO_MAX 24
307 #define _SC_AIO_PRIO_DELTA_MAX 25
308 #define _SC_DELAYTIMER_MAX 26
309 #define _SC_MQ_OPEN_MAX 27
310 #define _SC_MQ_PRIO_MAX 28
311 #define _SC_VERSION 29
312 #define _SC_PAGE_SIZE 30
313 #define _SC_PAGESIZE 30 /* !! */
314 #define _SC_RTSIG_MAX 31
315 #define _SC_SEM_NSEMS_MAX 32
316 #define _SC_SEM_VALUE_MAX 33
317 #define _SC_SIGQUEUE_MAX 34
318 #define _SC_TIMER_MAX 35
319 #define _SC_BC_BASE_MAX 36
320 #define _SC_BC_DIM_MAX 37
321 #define _SC_BC_SCALE_MAX 38
322 #define _SC_BC_STRING_MAX 39
323 #define _SC_COLL_WEIGHTS_MAX 40
324 #define _SC_EXPR_NEST_MAX 42
325 #define _SC_LINE_MAX 43
326 #define _SC_RE_DUP_MAX 44
327 #define _SC_2_VERSION 46
328 #define _SC_2_C_BIND 47
329 #define _SC_2_C_DEV 48
330 #define _SC_2_FORT_DEV 49
331 #define _SC_2_FORT_RUN 50
332 #define _SC_2_SW_DEV 51
333 #define _SC_2_LOCALEDEF 52
334 #define _SC_UIO_MAXIOV 60 /* !! */
335 #define _SC_IOV_MAX 60
336 #define _SC_THREADS 67
337 #define _SC_THREAD_SAFE_FUNCTIONS 68
338 #define _SC_GETGR_R_SIZE_MAX 69
339 #define _SC_GETPW_R_SIZE_MAX 70
340 #define _SC_LOGIN_NAME_MAX 71
341 #define _SC_TTY_NAME_MAX 72
342 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 73
343 #define _SC_THREAD_KEYS_MAX 74
344 #define _SC_THREAD_STACK_MIN 75
345 #define _SC_THREAD_THREADS_MAX 76
346 #define _SC_THREAD_ATTR_STACKADDR 77
347 #define _SC_THREAD_ATTR_STACKSIZE 78
348 #define _SC_THREAD_PRIORITY_SCHEDULING 79
349 #define _SC_THREAD_PRIO_INHERIT 80
350 #define _SC_THREAD_PRIO_PROTECT 81
351 #define _SC_THREAD_PROCESS_SHARED 82
352 #define _SC_NPROCESSORS_CONF 83
353 #define _SC_NPROCESSORS_ONLN 84
354 #define _SC_PHYS_PAGES 85
355 #define _SC_AVPHYS_PAGES 86
356 #define _SC_ATEXIT_MAX 87
357 #define _SC_PASS_MAX 88
358 #define _SC_XOPEN_VERSION 89
359 #define _SC_XOPEN_XCU_VERSION 90
360 #define _SC_XOPEN_UNIX 91
361 #define _SC_XOPEN_CRYPT 92
362 #define _SC_XOPEN_ENH_I18N 93
363 #define _SC_XOPEN_SHM 94
364 #define _SC_2_CHAR_TERM 95
365 #define _SC_2_UPE 97
366 #define _SC_XOPEN_XPG2 98
367 #define _SC_XOPEN_XPG3 99
368 #define _SC_XOPEN_XPG4 100
369 #define _SC_NZERO 109
370 #define _SC_XBS5_ILP32_OFF32 125
371 #define _SC_XBS5_ILP32_OFFBIG 126
372 #define _SC_XBS5_LP64_OFF64 127
373 #define _SC_XBS5_LPBIG_OFFBIG 128
374 #define _SC_XOPEN_LEGACY 129
375 #define _SC_XOPEN_REALTIME 130
376 #define _SC_XOPEN_REALTIME_THREADS 131
377 #define _SC_ADVISORY_INFO 132
378 #define _SC_BARRIERS 133
379 #define _SC_CLOCK_SELECTION 137
380 #define _SC_CPUTIME 138
381 #define _SC_THREAD_CPUTIME 139
382 #define _SC_MONOTONIC_CLOCK 149
383 #define _SC_READER_WRITER_LOCKS 153
384 #define _SC_SPIN_LOCKS 154
385 #define _SC_REGEXP 155
386 #define _SC_SHELL 157
387 #define _SC_SPAWN 159
388 #define _SC_SPORADIC_SERVER 160
389 #define _SC_THREAD_SPORADIC_SERVER 161
390 #define _SC_TIMEOUTS 164
391 #define _SC_TYPED_MEMORY_OBJECTS 165
392 #define _SC_2_PBS 168
393 #define _SC_2_PBS_ACCOUNTING 169
394 #define _SC_2_PBS_LOCATE 170
395 #define _SC_2_PBS_MESSAGE 171
396 #define _SC_2_PBS_TRACK 172
397 #define _SC_SYMLOOP_MAX 173
398 #define _SC_STREAMS 174
399 #define _SC_2_PBS_CHECKPOINT 175
400 #define _SC_V6_ILP32_OFF32 176
401 #define _SC_V6_ILP32_OFFBIG 177
402 #define _SC_V6_LP64_OFF64 178
403 #define _SC_V6_LPBIG_OFFBIG 179
404 #define _SC_HOST_NAME_MAX 180
405 #define _SC_TRACE 181
406 #define _SC_TRACE_EVENT_FILTER 182
407 #define _SC_TRACE_INHERIT 183
408 #define _SC_TRACE_LOG 184
410 #define _SC_IPV6 235
411 #define _SC_RAW_SOCKETS 236
412 #define _SC_V7_ILP32_OFF32 237
413 #define _SC_V7_ILP32_OFFBIG 238
414 #define _SC_V7_LP64_OFF64 239
415 #define _SC_V7_LPBIG_OFFBIG 240
416 #define _SC_SS_REPL_MAX 241
417 #define _SC_TRACE_EVENT_NAME_MAX 242
418 #define _SC_TRACE_NAME_MAX 243
419 #define _SC_TRACE_SYS_MAX 244
420 #define _SC_TRACE_USER_EVENT_MAX 245
421 #define _SC_XOPEN_STREAMS 246
422 #define _SC_THREAD_ROBUST_PRIO_INHERIT 247
423 #define _SC_THREAD_ROBUST_PRIO_PROTECT 248
425 #define _CS_PATH 0
426 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 1
427 #define _CS_GNU_LIBC_VERSION 2
428 #define _CS_GNU_LIBPTHREAD_VERSION 3
429 #define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS 4
430 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 5
432 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 1116
433 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 1117
434 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 1118
435 #define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS 1119
436 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 1120
437 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 1121
438 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 1122
439 #define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS 1123
440 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 1124
441 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 1125
442 #define _CS_POSIX_V6_LP64_OFF64_LIBS 1126
443 #define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS 1127
444 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 1128
445 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 1129
446 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 1130
447 #define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS 1131
448 #define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 1132
449 #define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 1133
450 #define _CS_POSIX_V7_ILP32_OFF32_LIBS 1134
451 #define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS 1135
452 #define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 1136
453 #define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 1137
454 #define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 1138
455 #define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS 1139
456 #define _CS_POSIX_V7_LP64_OFF64_CFLAGS 1140
457 #define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 1141
458 #define _CS_POSIX_V7_LP64_OFF64_LIBS 1142
459 #define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS 1143
460 #define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 1144
461 #define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 1145
462 #define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 1146
463 #define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS 1147
464 #define _CS_V6_ENV 1148
465 #define _CS_V7_ENV 1149
467 #ifdef __cplusplus
469 #endif
471 #endif