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/headers/posix/unistd.h

https://github.com/xifedI/haiku
C Header | 293 lines | 222 code | 43 blank | 28 comment | 0 complexity | 4306ba9e1728a503d7fa5ee27e80999f MD5 | raw file
    

  1. /*
    2. 

  2.  * Copyright 2004-2015 Haiku, Inc. All Rights Reserved.
    3. 

  3.  * Distributed under the terms of the MIT License.
    4. 

  4.  */
    5. 

  5. #ifndef _UNISTD_H_
    6. 

  6. #define _UNISTD_H_
    7. 

  7. 

  8. 

  9. #include <null.h>
    10. 

  10. #include <stdint.h>
    11. 

  11. #include <sys/types.h>
    12. 

  12. 

  13. 

  14. /* access modes */
    15. 

  15. #define R_OK	4
    16. 

  16. #define W_OK	2
    17. 

  17. #define X_OK	1
    18. 

  18. #define F_OK	0
    19. 

  19. 

  20. /* standard file descriptors */
    21. 

  21. #define STDIN_FILENO	0
    22. 

  22. #define STDOUT_FILENO	1
    23. 

  23. #define STDERR_FILENO	2
    24. 

  24. 

  25. /* function arguments needed by lockf() */
    26. 

  26. #define F_ULOCK		0	/* unlock locked sections */
    27. 

  27. #define F_LOCK		1	/* lock a section for exclusive use */
    28. 

  28. #define F_TLOCK		2	/* test and lock a section for exclusive use */
    29. 

  29. #define F_TEST		3	/* test a section for locks by other processes */
    30. 

  30. 

  31. /* POSIX version support */
    32. 

  32. #define _POSIX_VERSION			(199009L)	/* TODO: Update! */
    33. 

  33. 

  34. #define _POSIX_CHOWN_RESTRICTED	1
    35. 

  35. #define _POSIX_JOB_CONTROL		1
    36. 

  36. #define _POSIX_NO_TRUNC			0
    37. 

  37. #define _POSIX_SAVED_IDS		1
    38. 

  38. #define _POSIX_VDISABLE			((unsigned char)-2)
    39. 

  39. 	/* TODO: Check this! */
    40. 

  40. /* TODO: Update these to the current POSIX version! Ideally after actually
    41. 

  41. 	supporting the features. */
    42. 

  42. #define _POSIX_SEMAPHORES					(200112L)
    43. 

  43. #define _POSIX_THREADS						(200112L)
    44. 

  44. #define _POSIX_MAPPED_FILES					(200809L)
    45. 

  45. #define _POSIX_THREAD_PROCESS_SHARED		(200809L)
    46. 

  46. #define _POSIX_THREAD_ATTR_STACKADDR		(-1)	/* currently unsupported */
    47. 

  47. #define _POSIX_THREAD_ATTR_STACKSIZE		(200809L)
    48. 

  48. #define _POSIX_THREAD_PRIORITY_SCHEDULING	(-1)	/* currently unsupported */
    49. 

  49. #define _POSIX_REALTIME_SIGNALS				(200809L)
    50. 

  50. #define _POSIX_MEMORY_PROTECTION			(200809L)
    51. 

  51. #define _POSIX_MONOTONIC_CLOCK				(200809L)
    52. 

  52. #define _POSIX_TIMERS						(200809L)
    53. 

  53. #define _POSIX_CPUTIME						(200809L)
    54. 

  54. #define _POSIX_THREAD_CPUTIME				(200809L)
    55. 

  55. 

  56. 

  57. /* pathconf() constants */
    58. 

  58. /* BeOS supported values, do not touch */
    59. 

  59. #define _PC_CHOWN_RESTRICTED	1
    60. 

  60. #define _PC_MAX_CANON			2
    61. 

  61. #define _PC_MAX_INPUT			3
    62. 

  62. #define _PC_NAME_MAX			4
    63. 

  63. #define _PC_NO_TRUNC			5
    64. 

  64. #define _PC_PATH_MAX			6
    65. 

  65. #define _PC_PIPE_BUF			7
    66. 

  66. #define _PC_VDISABLE			8
    67. 

  67. #define _PC_LINK_MAX			25
    68. 

  68. /* new values */
    69. 

  69. #define _PC_SYNC_IO				26
    70. 

  70. #define _PC_ASYNC_IO			27
    71. 

  71. #define _PC_PRIO_IO				28
    72. 

  72. #define _PC_SOCK_MAXBUF			29
    73. 

  73. #define _PC_FILESIZEBITS		30
    74. 

  74. #define _PC_REC_INCR_XFER_SIZE	31
    75. 

  75. #define _PC_REC_MAX_XFER_SIZE	32
    76. 

  76. #define _PC_REC_MIN_XFER_SIZE	33
    77. 

  77. #define _PC_REC_XFER_ALIGN		34
    78. 

  78. #define _PC_ALLOC_SIZE_MIN		35
    79. 

  79. #define _PC_SYMLINK_MAX			36
    80. 

  80. #define _PC_2_SYMLINKS			37
    81. 

  81. #define _PC_XATTR_EXISTS		38
    82. 

  82. #define _PC_XATTR_ENABLED		39
    83. 

  83. 

  84. /* sysconf() constants */
    85. 

  85. /* BeOS supported values, do not touch */
    86. 

  86. #define _SC_ARG_MAX				15
    87. 

  87. #define _SC_CHILD_MAX			16
    88. 

  88. #define _SC_CLK_TCK				17
    89. 

  89. #define _SC_JOB_CONTROL			18
    90. 

  90. #define _SC_NGROUPS_MAX			19
    91. 

  91. #define _SC_OPEN_MAX			20
    92. 

  92. #define _SC_SAVED_IDS			21
    93. 

  93. #define _SC_STREAM_MAX			22
    94. 

  94. #define _SC_TZNAME_MAX			23
    95. 

  95. #define _SC_VERSION				24
    96. 

  96. /* new values */
    97. 

  97. #define _SC_GETGR_R_SIZE_MAX	25
    98. 

  98. #define _SC_GETPW_R_SIZE_MAX	26
    99. 

  99. #define _SC_PAGE_SIZE			27
    100. 

  100. #define _SC_PAGESIZE			_SC_PAGE_SIZE
    101. 

  101. #define _SC_SEM_NSEMS_MAX		28
    102. 

  102. #define _SC_SEM_VALUE_MAX		29
    103. 

  103. #define _SC_SEMAPHORES			30
    104. 

  104. #define _SC_THREADS				31
    105. 

  105. /* TODO: check */
    106. 

  106. #define _SC_IOV_MAX						32
    107. 

  107. #define _SC_UIO_MAXIOV					_SC_IOV_MAX
    108. 

  108. #define _SC_NPROCESSORS_CONF			34
    109. 

  109. #define _SC_NPROCESSORS_ONLN			35
    110. 

  110. #define _SC_ATEXIT_MAX					37
    111. 

  111. #define _SC_PASS_MAX					39
    112. 

  112. #define _SC_PHYS_PAGES					40
    113. 

  113. #define _SC_AVPHYS_PAGES				41
    114. 

  114. #define _SC_PIPE						42
    115. 

  115. #define _SC_SELECT						43
    116. 

  116. #define _SC_POLL						44
    117. 

  117. #define _SC_MAPPED_FILES				45
    118. 

  118. #define _SC_THREAD_PROCESS_SHARED		46
    119. 

  119. #define _SC_THREAD_STACK_MIN			47
    120. 

  120. #define _SC_THREAD_ATTR_STACKADDR		48
    121. 

  121. #define _SC_THREAD_ATTR_STACKSIZE		49
    122. 

  122. #define _SC_THREAD_PRIORITY_SCHEDULING	50
    123. 

  123. #define _SC_REALTIME_SIGNALS			51
    124. 

  124. #define	_SC_MEMORY_PROTECTION			52
    125. 

  125. #define _SC_SIGQUEUE_MAX				53
    126. 

  126. #define _SC_RTSIG_MAX					54
    127. 

  127. #define _SC_MONOTONIC_CLOCK				55
    128. 

  128. #define _SC_DELAYTIMER_MAX				56
    129. 

  129. #define _SC_TIMER_MAX					57
    130. 

  130. #define	_SC_TIMERS						58
    131. 

  131. #define	_SC_CPUTIME						59
    132. 

  132. #define	_SC_THREAD_CPUTIME				60
    133. 

  133. 

  134. 

  135. /* confstr() constants */
    136. 

  136. #define _CS_PATH				1
    137. 

  137. 

  138. /* lseek() constants */
    139. 

  139. #ifndef SEEK_SET
    140. 

  140. #	define SEEK_SET 0
    141. 

  141. #endif
    142. 

  142. #ifndef SEEK_CUR
    143. 

  143. #	define SEEK_CUR 1
    144. 

  144. #endif
    145. 

  145. #ifndef SEEK_END
    146. 

  146. #	define SEEK_END 2
    147. 

  147. #endif
    148. 

  148. 

  149. 

  150. #ifdef __cplusplus
    151. 

  151. extern "C" {
    152. 

  152. #endif
    153. 

  153. 

  154. /* file functions */
    155. 

  155. extern int		access(const char *path, int accessMode);
    156. 

  156. extern int		faccessat(int fd, const char *path, int accessMode, int flag);
    157. 

  157. 

  158. extern int		chdir(const char *path);
    159. 

  159. extern int		fchdir(int fd);
    160. 

  160. extern char		*getcwd(char *buffer, size_t size);
    161. 

  161. 

  162. extern int		pipe(int fildes[2]);
    163. 

  163. extern int		dup(int fd);
    164. 

  164. extern int		dup2(int fd1, int fd2);
    165. 

  165. extern int		close(int fd);
    166. 

  166. extern int		link(const char *toPath, const char *path);
    167. 

  167. extern int		linkat(int toFD, const char *toPath, int pathFD,
    168. 

  168. 					const char *path, int flag);
    169. 

  169. extern int		unlink(const char *name);
    170. 

  170. extern int		unlinkat(int fd, const char *path, int flag);
    171. 

  171. extern int		rmdir(const char *path);
    172. 

  172. 

  173. extern ssize_t  readlink(const char *path, char *buffer, size_t bufferSize);
    174. 

  174. extern ssize_t	readlinkat(int fd, const char *path, char *buffer,
    175. 

  175. 					size_t bufferSize);
    176. 

  176. extern int      symlink(const char *toPath, const char *symlinkPath);
    177. 

  177. extern int		symlinkat(const char *toPath, int fd, const char *symlinkPath);
    178. 

  178. 

  179. extern int      ftruncate(int fd, off_t newSize);
    180. 

  180. extern int      truncate(const char *path, off_t newSize);
    181. 

  181. extern int		ioctl(int fd, unsigned long op, ...);
    182. 

  182. 

  183. extern ssize_t	read(int fd, void *buffer, size_t count);
    184. 

  184. extern ssize_t  read_pos(int fd, off_t pos, void *buffer, size_t count);
    185. 

  185. extern ssize_t	pread(int fd, void *buffer, size_t count, off_t pos);
    186. 

  186. extern ssize_t	write(int fd, const void *buffer, size_t count);
    187. 

  187. extern ssize_t  write_pos(int fd, off_t pos, const void *buffer,size_t count);
    188. 

  188. extern ssize_t	pwrite(int fd, const void *buffer, size_t count, off_t pos);
    189. 

  189. extern off_t	lseek(int fd, off_t offset, int whence);
    190. 

  190. 

  191. extern void		sync(void);
    192. 

  192. extern int		fsync(int fd);
    193. 

  193. 

  194. extern int		chown(const char *path, uid_t owner, gid_t group);
    195. 

  195. extern int		fchown(int fd, uid_t owner, gid_t group);
    196. 

  196. extern int		lchown(const char *path, uid_t owner, gid_t group);
    197. 

  197. extern int		fchownat(int fd, const char *path, uid_t owner, gid_t group,
    198. 

  198. 					int flag);
    199. 

  199. 

  200. extern int		getpagesize(void);
    201. 

  201. extern int      getdtablesize(void);
    202. 

  202. extern long		sysconf(int name);
    203. 

  203. extern long		fpathconf(int fd, int name);
    204. 

  204. extern long		pathconf(const char *path, int name);
    205. 

  205. extern size_t	confstr(int name, char *buf, size_t len);
    206. 

  206. extern int		lockf(int fd, int function, off_t size);
    207. 

  207. 

  208. /* process functions */
    209. 

  209. extern pid_t	fork(void);
    210. 

  210. extern pid_t	vfork(void);
    211. 

  211. extern int		execve(const char *path, char * const argv[],
    212. 

  212. 					char *const environment[]);
    213. 

  213. extern int		execl(const char *path, const char *arg, ...);
    214. 

  214. extern int		execv(const char *path, char *const argv[]);
    215. 

  215. extern int		execlp(const char *file, const char *arg, ...);
    216. 

  216. extern int		execle(const char *path, const char *arg , ... /*, char **envp */);
    217. 

  217. extern int		execvp(const char *file, char *const argv[]);
    218. 

  218. extern int		execvpe(const char *file, char *const argv[],
    219. 

  219. 					char *const environment[]);
    220. 

  220. 

  221. extern void		_exit(int status) __attribute__ ((noreturn));
    222. 

  222. 

  223. extern pid_t	tcgetpgrp(int fd);
    224. 

  224. extern int		tcsetpgrp(int fd, pid_t pgrpid);
    225. 

  225. 

  226. extern int		brk(void *addr);
    227. 

  227. extern void		*sbrk(intptr_t increment);
    228. 

  228. 

  229. extern unsigned	int	alarm(unsigned int seconds);
    230. 

  230. extern useconds_t	ualarm(useconds_t microSeconds, useconds_t interval);
    231. 

  231. extern unsigned int	sleep(unsigned int seconds);
    232. 

  232. extern int			usleep(unsigned int microSeconds);
    233. 

  233. extern int 			pause(void);
    234. 

  234. 

  235. /* process */
    236. 

  236. extern pid_t	getpid(void);
    237. 

  237. extern pid_t	getpgrp(void);
    238. 

  238. extern pid_t	getppid(void);
    239. 

  239. extern pid_t	getsid(pid_t pid);
    240. 

  240. extern pid_t	getpgid(pid_t pid);
    241. 

  241. 

  242. extern pid_t	setsid(void);
    243. 

  243. extern int		setpgid(pid_t pid, pid_t pgid);
    244. 

  244. extern pid_t	setpgrp(void);
    245. 

  245. 

  246. extern int		chroot(const char *path);
    247. 

  247. 

  248. /* access permissions */
    249. 

  249. extern gid_t	getegid(void);
    250. 

  250. extern uid_t	geteuid(void);
    251. 

  251. extern gid_t	getgid(void);
    252. 

  252. extern uid_t	getuid(void);
    253. 

  253. 

  254. extern int		setgid(gid_t gid);
    255. 

  255. extern int		setuid(uid_t uid);
    256. 

  256. extern int		setegid(gid_t gid);
    257. 

  257. extern int		seteuid(uid_t uid);
    258. 

  258. extern int		setregid(gid_t rgid, gid_t egid);
    259. 

  259. extern int		setreuid(uid_t ruid, uid_t euid);
    260. 

  260. 

  261. extern int		getgrouplist(const char* user, gid_t baseGroup,
    262. 

  262. 					gid_t* groupList, int* groupCount);
    263. 

  263. extern int		getgroups(int groupCount, gid_t groupList[]);
    264. 

  264. extern int		initgroups(const char* user, gid_t baseGroup);
    265. 

  265. extern int		setgroups(int groupCount, const gid_t* groupList);
    266. 

  266. 

  267. extern char		*getlogin(void);
    268. 

  268. extern int		getlogin_r(char *name, size_t nameSize);
    269. 

  269. 

  270. /* host name */
    271. 

  271. extern int		sethostname(const char *hostName, size_t nameSize);
    272. 

  272. extern int		gethostname(char *hostName, size_t nameSize);
    273. 

  273. 

  274. /* tty */
    275. 

  275. extern int		isatty(int fd);
    276. 

  276. extern char		*ttyname(int fd);
    277. 

  277. extern int		ttyname_r(int fd, char *buffer, size_t bufferSize);
    278. 

  278. 

  279. /* misc */
    280. 

  280. extern char 	*crypt(const char *key, const char *salt);
    281. 

  281. extern void 	encrypt(char block[64], int edflag);
    282. 

  282. extern int		getopt(int argc, char *const *argv, const char *shortOpts);
    283. 

  283. extern void 	swab(const void *src, void *dest, ssize_t nbytes);
    284. 

  284. 

  285. /* getopt() related external variables */
    286. 

  286. extern char *optarg;
    287. 

  287. extern int optind, opterr, optopt;
    288. 

  288. 

  289. #ifdef __cplusplus
    290. 

  290. }
    291. 

  291. #endif
    292. 

  292. 

  293. #endif  /* _UNISTD_H_ */
    294. 

  294.