1 /* $Id: unistd.h,v 1.3 2002/03/22 01:26:28 hyperion Exp $
6 * standard symbolic constants and types. Conforming to the Single UNIX(r)
7 * Specification Version 2, System Interface & Headers Issue 5
9 * This file is part of the ReactOS Operating System.
12 * Created by KJK::Hyperion <noog@libero.it>
14 * THIS SOFTWARE IS NOT COPYRIGHTED
16 * This source code is offered for use in the public domain. You may
17 * use, modify or distribute it freely.
19 * This code is distributed in the hope that it will be useful but
20 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
21 * DISCLAMED. This includes but is not limited to warranties of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
25 #ifndef __UNISTD_H_INCLUDED__
26 #define __UNISTD_H_INCLUDED__
29 #include <sys/types.h>
35 extern int optind
, opterr
, optopt
;
40 /* FIXME: set these constants appropriately */
41 /* Integer value indicating version of the ISO POSIX-1 standard (C
43 #define _POSIX_VERSION (0)
45 /* Integer value indicating version of the ISO POSIX-2 standard
47 #define _POSIX2_VERSION (0)
49 /* Integer value indicating version of the ISO POSIX-2 standard (C
51 #define _POSIX2_C_VERSION (0)
53 /* Integer value indicating version of the X/Open Portability Guide to
54 which the implementation conforms. */
55 #define _XOPEN_VERSION (500)
57 /* The version of the XCU specification to which the implementation
59 /* TODO: set to an appropriate value when commands and utilities will
61 #define _XOPEN_XCU_VERSION (-1)
63 #if _XOPEN_XCU_VERSION != -1
64 #error TODO: define these constants
65 #define _POSIX2_C_BIND
66 #define _POSIX2_C_VERSION
67 #define _POSIX2_CHAR_TERM
68 #define _POSIX2_LOCALEDEF
70 #define _POSIX2_VERSION
74 /* TODO: check for conformance to the following specs */
82 /* TODO: don't forget these features */
83 /* The use of chown() is restricted to a process with appropriate
84 privileges, and to changing the group ID of a file only to the
85 effective group ID of the process or to one of its supplementary
87 #define _POSIX_CHOWN_RESTRICTED
89 /* Terminal special characters defined in <termios.h> can be disabled
90 using this character value. */
91 #define _POSIX_VDISABLE
93 /* Each process has a saved set-user-ID and a saved set-group-ID. */
94 #define _POSIX_SAVED_IDS
96 /* Implementation supports job control. */
97 #define _POSIX_JOB_CONTROL
101 /* Pathname components longer than {NAME_MAX} generate an error. */
102 #define _POSIX_NO_TRUNC (1)
104 /* The implementation supports the threads option. */
105 #define _POSIX_THREADS (1)
107 /* FIXME: none of the following is strictly true yet */
108 /* The implementation supports the thread stack address attribute
109 option. */ /* FIXME: not currently implemented. Should be trivial */
110 #define _POSIX_THREAD_ATTR_STACKADDR (1)
112 /* The implementation supports the thread stack size attribute
113 option. */ /* FIXME: not currently implemented. Should be trivial */
114 #define _POSIX_THREAD_ATTR_STACKSIZE (1)
116 /* The implementation supports the process-shared synchronisation
117 option. */ /* FIXME? not sure */
118 #define _POSIX_THREAD_PROCESS_SHARED (1)
120 /* The implementation supports the thread-safe functions option. */
121 /* FIXME: fix errno (currently not thread-safe) */
122 #define _POSIX_THREAD_SAFE_FUNCTIONS (1)
125 Constants for Options and Feature Groups
128 /* Implementation supports the C Language Binding option. This will
129 always have a value other than -1. */
130 #define _POSIX2_C_BIND (1)
132 /* Implementation supports the C Language Development Utilities
133 option. */ /* FIXME: please change this when C compiler and
134 utilities are ported */
135 #define _POSIX2_C_DEV (-1)
137 /* Implementation supports at least one terminal type. */ /* FIXME:
138 please change this when terminal emulation is complete */
139 #define _POSIX2_CHAR_TERM (-1)
141 /* Implementation supports the FORTRAN Development Utilities option. */
142 /* FIXME: please change this when Fortran compiler and utilities are
144 #define _POSIX2_FORT_DEV (-1)
146 /* Implementation supports the FORTRAN Run-time Utilities option. */
147 /* FIXME: please change this when Fortran runtimes are ported */
148 #define _POSIX2_FORT_RUN (-1)
150 /* Implementation supports the creation of locales by the localedef
151 utility. */ /* FIXME: please change this when locales are ready */
152 #define _POSIX2_LOCALEDEF (-1)
154 /* Implementation supports the Software Development Utilities option. */
156 #define _POSIX2_SW_DEV (-1)
158 /* The implementation supports the User Portability Utilities option. */
160 #define _POSIX2_UPE (-1)
162 /* The implementation supports the X/Open Encryption Feature Group. */
163 /* FIXME: please change this when encryption is ready */
164 #define _XOPEN_CRYPT (-1)
166 /* The implementation supports the Issue 4, Version 2 Enhanced
167 Internationalisation Feature Group. This is always set to a value
168 other than -1. */ /* TODO: high priority. Support for this feature is
169 needed for a conforming implementation */
170 #define _XOPEN_ENH_I18N (-1)
172 /* The implementation supports the Legacy Feature Group. */
173 #define _XOPEN_LEGACY (1)
175 /* The implementation supports the X/Open Realtime Feature Group. */
176 /* FIXME? unlikely to be ever supported */
177 #define _XOPEN_REALTIME (-1)
179 /* The implementation supports the X/Open Realtime Threads Feature
180 Group. */ /* FIXME? really unlikely to be ever supported */
181 #define _XOPEN_REALTIME_THREADS (-1)
183 /* The implementation supports the Issue 4, Version 2 Shared Memory
184 Feature Group. This is always set to a value other than -1. */ /* TODO:
185 high priority. Support for this feature is needed for a conforming
187 #define _XOPEN_SHM (-1)
189 /* Implementation provides a C-language compilation environment with
190 32-bit int, long, pointer and off_t types. */
191 #define _XBS5_ILP32_OFF32 (1)
193 /* Implementation provides a C-language compilation environment with
194 32-bit int, long and pointer types and an off_t type using at
195 least 64 bits. */ /* FIXME? check the off_t type */
196 #define _XBS5_ILP32_OFFBIG (1)
198 /* Implementation provides a C-language compilation environment with
199 32-bit int and 64-bit long, pointer and off_t types. */ /* FIXME: on
200 some architectures this may be true */
201 #define _XBS5_LP64_OFF64 (-1)
203 /* Implementation provides a C-language compilation environment with
204 an int type using at least 32 bits and long, pointer and off_t
205 types using at least 64 bits. */ /* FIXME: on some architectures
207 #define _XBS5_LPBIG_OFFBIG (-1)
209 /* Implementation supports the File Synchronisation option. */
210 /* TODO: high priority. Implement this */
213 /* Implementation supports the Memory Mapped Files option. */
214 /* TODO: high priority. Implement this */
215 #define _POSIX_MAPPED_FILES
217 /* Implementation supports the Memory Protection option. */
218 /* TODO: high priority. Implement this */
219 #define _POSIX_MEMORY_PROTECTION
222 /* Implementation supports the Prioritized Input and Output option. */
223 /* FIXME? unlikely to be ever supported */
224 #define _POSIX_PRIORITIZED_IO
227 /* FIXME: these should be implemented */
228 /* Asynchronous input or output operations may be performed for the
230 #define _POSIX_ASYNC_IO (-1)
232 /* Prioritized input or output operations may be performed for the
234 #define _POSIX_PRIO_IO (-1)
236 /* Synchronised input or output operations may be performed for the
238 #define _POSIX_SYNC_IO (-1)
244 /* NULL seems to be defined pretty much everywhere - we prevent
246 #define NULL ((void *)(0))
250 constants for the access() function
253 #define R_OK (0x00000004) /* Test for read permission. */
254 #define W_OK (0x00000002) /* Test for write permission. */
255 #define X_OK (0x00000001) /* Test for execute (search) permission. */
256 #define F_OK (0) /* Test for existence of file. */
259 constants for the confstr() function
262 #define _CS_XBS5_ILP32_OFF32_CFLAGS (2)
263 #define _CS_XBS5_ILP32_OFF32_LDFLAGS (3)
264 #define _CS_XBS5_ILP32_OFF32_LIBS (4)
265 #define _CS_XBS5_ILP32_OFF32_LINTFLAGS (5)
266 #define _CS_XBS5_ILP32_OFFBIG_CFLAGS (6)
267 #define _CS_XBS5_ILP32_OFFBIG_LDFLAGS (7)
268 #define _CS_XBS5_ILP32_OFFBIG_LIBS (8)
269 #define _CS_XBS5_ILP32_OFFBIG_LINTFLAGS (9)
270 #define _CS_XBS5_LP64_OFF64_CFLAGS (10)
271 #define _CS_XBS5_LP64_OFF64_LDFLAGS (11)
272 #define _CS_XBS5_LP64_OFF64_LIBS (12)
273 #define _CS_XBS5_LP64_OFF64_LINTFLAGS (13)
274 #define _CS_XBS5_LPBIG_OFFBIG_CFLAGS (14)
275 #define _CS_XBS5_LPBIG_OFFBIG_LDFLAGS (15)
276 #define _CS_XBS5_LPBIG_OFFBIG_LIBS (16)
277 #define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS (17)
280 constants for the lseek() and fcntl() functions
283 #define SEEK_SET (0) /* Set file offset to offset. */
284 #define SEEK_CUR (1) /* Set file offset to current plus offset. */
285 #define SEEK_END (2) /* Set file offset to EOF plus offset. */
288 constants for pathconf()
290 /* constants 1 to 9 are the same as in Microsoft POSIX */
291 #define _PC_LINK_MAX ( 1)
292 #define _PC_MAX_CANON ( 2)
293 #define _PC_MAX_INPUT ( 3)
294 #define _PC_NAME_MAX ( 4)
295 #define _PC_PATH_MAX ( 5)
296 #define _PC_PIPE_BUF ( 6)
297 #define _PC_CHOWN_RESTRICTED ( 7)
298 #define _PC_NO_TRUNC ( 8)
299 #define _PC_VDISABLE ( 9)
300 /* from this point, constants are in no particular order */
301 #define _PC_ALLOC_SIZE_MIN ( 10)
302 #define _PC_ASYNC_IO ( 11)
303 #define _PC_FILESIZEBITS ( 12)
304 #define _PC_PRIO_IO ( 13)
305 #define _PC_REC_INCR_XFER_SIZE ( 14)
306 #define _PC_REC_MAX_XFER_SIZE ( 15)
307 #define _PC_REC_MIN_XFER_SIZE ( 16)
308 #define _PC_REC_XFER_ALIGN ( 17)
309 #define _PC_SYNC_IO ( 18)
312 constants for sysconf()
314 /* constants 1 to 10 are the same as in Microsoft POSIX */
315 #define _SC_ARG_MAX ( 1)
316 #define _SC_CHILD_MAX ( 2)
317 #define _SC_CLK_TCK ( 3)
318 #define _SC_NGROUPS_MAX ( 4)
319 #define _SC_OPEN_MAX ( 5)
320 #define _SC_JOB_CONTROL ( 6)
321 #define _SC_SAVED_IDS ( 7)
322 #define _SC_STREAM_MAX ( 8)
323 #define _SC_TZNAME_MAX ( 9)
324 #define _SC_VERSION ( 10)
325 /* from this point, constants are in no particular order */
326 #define _SC_2_C_BIND ( 11)
327 #define _SC_2_C_DEV ( 12)
328 #define _SC_2_C_VERSION ( 13)
329 #define _SC_2_FORT_DEV ( 14)
330 #define _SC_2_FORT_RUN ( 15)
331 #define _SC_2_LOCALEDEF ( 16)
332 #define _SC_2_SW_DEV ( 17)
333 #define _SC_2_UPE ( 18)
334 #define _SC_2_VERSION ( 19)
335 #define _SC_AIO_LISTIO_MAX ( 20)
336 #define _SC_AIO_MAX ( 21)
337 #define _SC_AIO_PRIO_DELTA_MAX ( 22)
338 #define _SC_ASYNCHRONOUS_IO ( 23)
339 #define _SC_ATEXIT_MAX ( 24)
340 #define _SC_BC_BASE_MAX ( 25)
341 #define _SC_BC_DIM_MAX ( 26)
342 #define _SC_BC_SCALE_MAX ( 27)
343 #define _SC_BC_STRING_MAX ( 28)
344 #define _SC_COLL_WEIGHTS_MAX ( 29)
345 #define _SC_DELAYTIMER_MAX ( 30)
346 #define _SC_EXPR_NEST_MAX ( 31)
347 #define _SC_FSYNC ( 32)
348 #define _SC_GETGR_R_SIZE_MAX ( 33)
349 #define _SC_GETPW_R_SIZE_MAX ( 34)
350 #define _SC_IOV_MAX ( 35)
351 #define _SC_LINE_MAX ( 36)
352 #define _SC_LOGIN_NAME_MAX ( 37)
353 #define _SC_MAPPED_FILES ( 38)
354 #define _SC_MEMLOCK ( 39)
355 #define _SC_MEMLOCK_RANGE ( 40)
356 #define _SC_MEMORY_PROTECTION ( 41)
357 #define _SC_MESSAGE_PASSING ( 42)
358 #define _SC_MQ_OPEN_MAX ( 43)
359 #define _SC_MQ_PRIO_MAX ( 44)
360 #define _SC_PAGE_SIZE ( 45)
361 #define _SC_PASS_MAX ( 46) /* LEGACY */
362 #define _SC_PRIORITIZED_IO ( 47)
363 #define _SC_PRIORITY_SCHEDULING ( 48)
364 #define _SC_RE_DUP_MAX ( 49)
365 #define _SC_REALTIME_SIGNALS ( 50)
366 #define _SC_RTSIG_MAX ( 51)
367 #define _SC_SEMAPHORES ( 52)
368 #define _SC_SEM_NSEMS_MAX ( 53)
369 #define _SC_SEM_VALUE_MAX ( 54)
370 #define _SC_SHARED_MEMORY_OBJECTS ( 55)
371 #define _SC_SIGQUEUE_MAX ( 56)
372 #define _SC_SYNCHRONIZED_IO ( 57)
373 #define _SC_THREADS ( 58)
374 #define _SC_THREAD_ATTR_STACKADDR ( 59)
375 #define _SC_THREAD_ATTR_STACKSIZE ( 60)
376 #define _SC_THREAD_DESTRUCTOR_ITERATIONS ( 61)
377 #define _SC_THREAD_KEYS_MAX ( 62)
378 #define _SC_THREAD_PRIORITY_SCHEDULING ( 63)
379 #define _SC_THREAD_PRIO_INHERIT ( 64)
380 #define _SC_THREAD_PRIO_PROTECT ( 65)
381 #define _SC_THREAD_PROCESS_SHARED ( 66)
382 #define _SC_THREAD_SAFE_FUNCTIONS ( 67)
383 #define _SC_THREAD_STACK_MIN ( 68)
384 #define _SC_THREAD_THREADS_MAX ( 69)
385 #define _SC_TIMERS ( 70)
386 #define _SC_TIMER_MAX ( 71)
387 #define _SC_TTY_NAME_MAX ( 72)
388 #define _SC_XOPEN_VERSION ( 73)
389 #define _SC_XOPEN_CRYPT ( 74)
390 #define _SC_XOPEN_ENH_I18N ( 75)
391 #define _SC_XOPEN_SHM ( 76)
392 #define _SC_XOPEN_UNIX ( 77)
393 #define _SC_XOPEN_XCU_VERSION ( 78)
394 #define _SC_XOPEN_LEGACY ( 79)
395 #define _SC_XOPEN_REALTIME ( 80)
396 #define _SC_XOPEN_REALTIME_THREADS ( 81)
397 #define _SC_XBS5_ILP32_OFF32 ( 82)
398 #define _SC_XBS5_ILP32_OFFBIG ( 83)
399 #define _SC_XBS5_LP64_OFF64 ( 84)
400 #define _SC_XBS5_LPBIG_OFFBIG ( 85)
403 #define _SC_PAGESIZE _SC_PAGE_SIZE
405 /* possible values for the function argument to the lockf() function */
406 #define F_LOCK (1) /* Lock a section for exclusive use. */
407 #define F_ULOCK (2) /* Unlock locked sections. */
408 #define F_TEST (3) /* Test section for locks by other processes. */
409 #define F_TLOCK (4) /* Test and lock a section for exclusive use. */
411 #define STDIN_FILENO (0) /* File number of stdin. */
412 #define STDOUT_FILENO (1) /* File number of stdout. */
413 #define STDERR_FILENO (2) /* File number of stderr. */
416 int access(const char *, int);
417 unsigned int alarm(unsigned int);
419 int chdir(const char *);
420 int chroot(const char *); /* LEGACY */
421 int chown(const char *, uid_t
, gid_t
);
423 size_t confstr(int, char *, size_t);
424 char *crypt(const char *, const char *);
425 char *ctermid(char *);
426 char *cuserid(char *s
); /* LEGACY */
429 void encrypt(char[64], int);
430 int execl(const char *, const char *, ...);
431 int execle(const char *, const char *, ...);
432 int execlp(const char *, const char *, ...);
433 int execv(const char *, char *const []);
434 int execve(const char *, char *const [], char *const []);
435 int execvp(const char *, char *const []);
437 int fchown(int, uid_t
, gid_t
);
441 long int fpathconf(int, int);
443 int ftruncate(int, off_t
);
444 char *getcwd(char *, size_t);
445 int getdtablesize(void); /* LEGACY */
449 int getgroups(int, gid_t
[]);
450 long gethostid(void);
451 char *getlogin(void);
452 int getlogin_r(char *, size_t);
453 int getopt(int, char * const [], const char *);
454 int getpagesize(void); /* LEGACY */
455 char *getpass(const char *); /* LEGACY */
456 pid_t
getpgid(pid_t
);
464 int lchown(const char *, uid_t
, gid_t
);
465 int link(const char *, const char *);
466 int lockf(int, int, off_t
);
467 off_t
lseek(int, off_t
, int);
469 long int pathconf(const char *, int);
472 ssize_t
pread(int, void *, size_t, off_t
);
473 int pthread_atfork(void (*)(void), void (*)(void),
475 ssize_t
pwrite(int, const void *, size_t, off_t
);
476 ssize_t
read(int, void *, size_t);
477 int readlink(const char *, char *, size_t);
478 int rmdir(const char *);
479 void *sbrk(intptr_t);
481 int setpgid(pid_t
, pid_t
);
483 int setregid(gid_t
, gid_t
);
484 int setreuid(uid_t
, uid_t
);
487 unsigned int sleep(unsigned int);
488 void swab(const void *, void *, ssize_t
);
489 int symlink(const char *, const char *);
491 long int sysconf(int);
492 pid_t
tcgetpgrp(int);
493 int tcsetpgrp(int, pid_t
);
494 int truncate(const char *, off_t
);
496 int ttyname_r(int, char *, size_t);
497 useconds_t
ualarm(useconds_t
, useconds_t
);
498 int unlink(const char *);
499 int usleep(useconds_t
);
501 ssize_t
write(int, const void *, size_t);
505 #endif /* __UNISTD_H_INCLUDED__ */