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885824d3 1/*
2** posix.h
3**
4** This file should be processed with one of the standard libraries
5** (standard.h or strict.h) to produce posix.lcd or posixstrict.lcd.
6*/
7
8/*@-nextlinemacros@*/
9/*@+allimponly@*/
10/*@+globsimpmodifiesnothing@*/
11
12/*
13 * LCLint ISO C + POSIX Library
14 *
15 * $Id$
16 */
17
18/*
19 * In 1988, IEEE Std 1003.1-1988, commonly known as "POSIX" or the
20 * "IEEE Portable Operating System Interface for Computing Environments"
21 * was published as an American National Standard. In 1990, IEEE Std
22 * 1003.1-1990 was published as an International Standard. The two
23 * standards differ slightly, and where they do, the 1990 International
24 * standard was used for this lclint library. The differences are:
25 *
26 * 1988: cuserid()
27 * 1990: -removed- (but still in this lclint library)
28 *
29 * 1988: int read (int, void*, unsigned int)
30 * 1990: ssize_t read (int, void*, size_t)
31 *
32 * 1988: int write (int, const void*, unsigned int)
33 * 1990: ssize_t write (int, const void*, size_t)
34 *
35 * The other differences are in the semantics of functions.
36 */
37
38/*
39 * The reference for the ISO C part of this library was
40 * Plauger, Brodie's "Standard C - A Reference", Prentice Hall.
41 * The reference for the POSIX part of this library was
42 * Donald Lewine's "POSIX Programmer's Guide", O'Reilly.
43 * Transcription by Jens Schweikhardt <schweikhardt@rus.uni-stuttgart.de>
44 */
45
46/*
47 * Note that Amendment 1 to ISO C was published in 1995 after POSIX was out.
48 * Amendment 1 basically adds support for wide characters and iso 646
49 * source character sets. In particular, there are three new headers:
50 * <iso646.h>, <wchar.h>, and <wctype.h>
51 */
52
53/*
54 * Each header has annotations in this order:
55 *
56 * 1) type definitions (if any)
57 * 2) constant definitions (if any)
58 * 3) structure definitions (if any)
59 * 4) function prototypes and externals (if any)
60 *
61 * 5) type definitions augmented by POSIX (if any)
62 * 6) constant definitions augmented by POSIX (if any)
63 * 7) structure definitions augmented by POSIX (if any)
64 * 8) function prototypes and externals augmented by POSIX (if any)
65 *
66 * Builtins are mentioned in the header where they appear according to ISO.
67 */
68
69/*
70** sys/types.h
71*/
72
73typedef /*@integraltype@*/ dev_t;
74typedef /*@integraltype@*/ gid_t;
75typedef /*@integraltype@*/ ino_t;
76typedef /*@integraltype@*/ mode_t;
77typedef /*@integraltype@*/ nlink_t;
78typedef /*@integraltype@*/ off_t;
79typedef /*@integraltype@*/ pid_t;
80typedef /*@integraltype@*/ uid_t;
81
82/*
83** dirent.h
84*/
85
86typedef /*@abstract@*/ /*@mutable@*/ void *DIR;
87
88struct dirent {
89 char d_name[];
90};
91
92 extern int
93closedir (DIR *dirp)
94 /*@modifies errno@*/;
95
96 extern /*@null@*/ DIR *
97opendir (const char *dirname)
98 /*@modifies errno@*/;
99
100 extern /*@null@*/ struct dirent *
101readdir (DIR *dirp)
102 /*@modifies errno@*/;
103
104 extern void
105rewinddir (DIR *dirp)
106 /*@*/;
107
108/*
109** errno.h
110*/
111
112/*@constant int E2BIG@*/
113/*@constant int EACCES@*/
114/*@constant int EAGAIN@*/
115/*@constant int EBADF@*/
116/*@constant int EBUSY@*/
117/*@constant int ECHILD@*/
118/*@constant int EDEADLK@*/
119/*@constant int EEXIST@*/
120/*@constant int EFAULT@*/
121/*@constant int EFBIG@*/
122/*@constant int EINTR@*/
123/*@constant int EINVAL@*/
124/*@constant int EIO@*/
125/*@constant int EISDIR@*/
126/*@constant int EMFILE@*/
127/*@constant int EMLINK@*/
128/*@constant int ENAMETOOLONG@*/
129/*@constant int ENFILE@*/
130/*@constant int ENODEV@*/
131/*@constant int ENOENT@*/
132/*@constant int ENOEXEC@*/
133/*@constant int ENOLCK@*/
134/*@constant int ENOMEM@*/
135/*@constant int ENOSPC@*/
136/*@constant int ENOSYS@*/
137/*@constant int ENOTDIR@*/
138/*@constant int ENOTEMPTY@*/
139/*@constant int ENOTTY@*/
140/*@constant int ENXIO@*/
141/*@constant int EPERM@*/
142/*@constant int EPIPE@*/
143/*@constant int EROFS@*/
144/*@constant int ESPIPE@*/
145/*@constant int ESRCH@*/
146/*@constant int EXDEV@*/
147
148/*
149** fcntl.h
150*/
151
152/*@constant int FD_CLOEXEC@*/
153/*@constant int F_DUPFD@*/
154/*@constant int F_GETFD@*/
155/*@constant int F_GETFL@*/
156/*@constant int F_GETLK@*/
157/*@constant int F_RDLCK@*/
158/*@constant int F_SETFD@*/
159/*@constant int F_SETFL@*/
160/*@constant int F_SETLK@*/
161/*@constant int F_SETLKW@*/
162/*@constant int F_UNLCK@*/
163/*@constant int F_WRLCK@*/
164/*@constant int O_ACCMODE@*/
165/*@constant int O_APPEND@*/
166/*@constant int O_CREAT@*/
167/*@constant int O_EXCL@*/
168/*@constant int O_NOCTTY@*/
169/*@constant int O_NONBLOCK@*/
170/*@constant int O_RDONLY@*/
171/*@constant int O_RDWR@*/
172/*@constant int O_TRUNC@*/
173/*@constant int O_WRONLY@*/
174/*@constant int SEEK_CUR@*/
175/*@constant int SEEK_END@*/
176/*@constant int SEEK_SET@*/
177/*@constant int S_IRGRP@*/
178/*@constant int S_IROTH@*/
179/*@constant int S_IUSR@*/
180/*@constant int S_IWXG@*/
181/*@constant int S_IWXO@*/
182/*@constant int S_IWXU@*/
183/*@constant int S_ISGID@*/
184/*@constant int S_ISUID@*/
185/*@constant int S_IWGRP@*/
186/*@constant int S_IWOTH@*/
187/*@constant int S_IWUSR@*/
188/*@constant int S_IXGRP@*/
189/*@constant int S_IXOTH@*/
190/*@constant int S_IXUSR@*/
191
192struct flock {
193 short l_type;
194 short l_whence;
195 off_t l_start;
196 off_t l_len;
197 pid_t l_pid;
198};
199
200 extern int
201creat (const char *path, mode_t mode)
202 /*@modifies errno@*/;
203
204 extern int
205fcntl (int fd, int cmd, ...)
206 /*@modifies errno@*/;
207
208 extern int
209open (const char *path, int oflag, ...)
210 /*@modifies errno@*/;
211
212/*
213** grp.h
214*/
215
216struct group {
217 char *gr_name;
218 gid_t gr_gid;
219 char **gr_mem;
220};
221
222 extern /*@null@*/ struct group *
223getgrgid (gid_t gid)
224 /*@modifies errno@*/;
225
226 extern /*@null@*/ struct group *
227getgrnam (const char *nm)
228 /*@modifies errno@*/;
229
230/*
231** limits.h
232*/
233
234/*@constant long ARG_MAX@*/
235/*@constant long CHILD_MAX@*/
236/*@constant long LINK_MAX@*/
237/*@constant long MAX_CANON@*/
238/*@constant long MAX_INPUT@*/
239/*@constant long NAME_MAX@*/
240/*@constant long NGROUPS_MAX@*/
241/*@constant long OPEN_MAX@*/
242/*@constant long PIPE_BUF@*/
243/*@constant long SSIZE_MAX@*/
244/*@constant long STREAM_MAX@*/
245/*@constant long TZNAME_MAX@*/
246/*@constant long _POSIX_ARG_MAX@*/
247/*@constant long _POSIX_CHILD_MAX@*/
248/*@constant long _POSIX_LINK_MAX@*/
249/*@constant long _POSIX_MAX_CANON@*/
250/*@constant long _POSIX_MAX_INPUT@*/
251/*@constant long _POSIX_NAME_MAX@*/
252/*@constant long _POSIX_NGROUPS_MAX@*/
253/*@constant long _POSIX_OPEN_MAX@*/
254/*@constant long _POSIX_PATH_MAX@*/
255/*@constant long _POSIX_PIPE_BUF@*/
256/*@constant long _POSIX_SSIZE@*/
257/*@constant long _POSIX_STREAM@*/
258/*@constant long _POSIX_TZNAME_MAX@*/
259
260/*
261** pwd.h
262*/
263
264struct passwd {
265 char *pw_name;
266 uid_t pw_uid;
267 gid_t pw_gid;
268 char *pw_dir;
269 char *pw_shell;
270} ;
271
272 extern /*@observer@*/ /*@null@*/ struct passwd *
273getpwnam (const char *)
274 /*@modifies errno@*/;
275
276 extern /*@observer@*/ /*@null@*/ struct passwd *
277getpwuid (uid_t uid)
278 /*@modifies errno@*/;
279
280/*
281** setjmp.h
282*/
283
284typedef /*@abstract@*/ /*@mutable@*/ void *sigjmp_buf;
285
286 extern /*@mayexit@*/ void
287siglongjmp (sigjmp_buf env, int val)
288 /*@*/;
289
290 extern int
291sigsetjmp (/*@out@*/ sigjmp_buf env, int savemask)
292 /*@modifies env@*/;
293
294/*
295** signal.h
296*/
297
298typedef /*@abstract@*/ sigset_t;
299
300/*@constant int SA_NOCLDSTOP@*/
301/*@constant int SIG_BLOCK@*/
302/*@constant int SIG_SETMASK@*/
303/*@constant int SIG_UNBLOCK@*/
304/*@constant int SIGALRM@*/
305/*@constant int SIGCHLD@*/
306/*@constant int SIGCONT@*/
307/*@constant int SIGHUP@*/
308/*@constant int SIGKILL@*/
309/*@constant int SIGPIPE@*/
310/*@constant int SIGQUIT@*/
311/*@constant int SIGSTOP@*/
312/*@constant int SIGTSTP@*/
313/*@constant int SIGTTIN@*/
314/*@constant int SIGTTOU@*/
315/*@constant int SIGUSR1@*/
316/*@constant int SIGUSR2@*/
317
318struct sigaction {
319 void (*sa_handler)();
320 sigset_t sa_mask;
321 int sa_flags;
322} ;
323
324 extern /*@mayexit@*/ int
325kill (pid_t pid, int sig)
326 /*@modifies errno@*/;
327
328 extern int
329sigaction (int sig, const struct sigaction *act, /*@out@*/ /*@null@*/ struct sigaction *oact)
ccf0a4a8 330 /*@modifies *oact, errno, systemState@*/;
885824d3 331
332 extern int
333sigaddset (sigset_t *set, int signo)
334 /*@modifies *set, errno@*/;
335
336 extern int
337sigdelset (sigset_t *set, int signo)
338 /*@modifies *set, errno@*/;
339
340 extern int
341sigemptyset (/*@out@*/ sigset_t *set)
342 /*@modifies *set, errno@*/;
343
344 extern int
345sigfillset (/*@out@*/ sigset_t *set)
346 /*@modifies *set, errno@*/;
347
348 extern int
349sigismember (const sigset_t *set, int signo)
350 /*@modifies errno@*/;
351
352 extern int
353sigpending (/*@out@*/ sigset_t *set)
354 /*@modifies *set, errno@*/;
355
356 extern int
357sigprocmask (int how, /*@null@*/ const sigset_t *set, /*@null@*/ /*@out@*/ sigset_t *oset)
ccf0a4a8 358 /*@modifies *oset, errno, systemState@*/;
885824d3 359
360 extern int
361sigsuspend (const sigset_t *sigmask)
ccf0a4a8 362 /*@modifies errno, systemState@*/;
885824d3 363
364/*
365** stdio.h
366*/
367
368/*@constant int L_ctermid@*/
369/*@constant int L_cuserid@*/
370/*@constant int STREAM_MAX@*/
371
372 extern /*@null@*/ /*@dependent@*/ FILE *
373fdopen (int fd, const char *type)
374 /*@modifies errno, fileSystem@*/;
375
376 extern int
377fileno (FILE *fp)
378 /*@modifies errno@*/;
379
380/*
381** sys/stat.h
382*/
383
384/*@constant int S_IRGRP@*/
385/*@constant int S_IROTH@*/
386/*@constant int S_IUSR@*/
387/*@constant int S_IWXG@*/
388/*@constant int S_IWXO@*/
389/*@constant int S_IWXU@*/
390/*@constant int S_ISGID@*/
391/*@constant int S_ISUID@*/
392/*@constant int S_IWGRP@*/
393/*@constant int S_IWOTH@*/
394/*@constant int S_IWUSR@*/
395/*@constant int S_IXGRP@*/
396/*@constant int S_IXOTH@*/
397/*@constant int S_IXUSR@*/
398
399struct stat {
400 mode_t st_mode;
401 ino_t st_ino;
402 dev_t st_dev;
403 nlink_t st_nlink;
404 uid_t st_uid;
405 gid_t st_gid;
406 off_t st_size;
407 time_t st_st_atime;
408 time_t st_st_mtime;
409 time_t st_st_ctime;
410} ;
411
412/*
413** POSIX does not require that the S_I* be functions. They're
414** macros virtually everywhere.
415*/
416
417# ifdef STRICT
418/*@notfunction@*/
419# define SBOOLINT lltX_bool /*@alt int@*/
420# else
421/*@notfunction@*/
422# define SBOOLINT lltX_bool
423# endif
424
425extern SBOOLINT S_ISBLK (/*@sef@*/ mode_t m) /*@*/ ;
426
427extern SBOOLINT S_ISCHR (/*@sef@*/ mode_t m) /*@*/ ;
428
429extern SBOOLINT S_ISDIR (/*@sef@*/ mode_t m) /*@*/ ;
430
431extern SBOOLINT S_ISFIFO (/*@sef@*/ mode_t m) /*@*/ ;
432
433extern SBOOLINT S_ISREG (/*@sef@*/ mode_t m) /*@*/ ;
434
435extern int chmod (const char *path, mode_t mode)
436 /*@modifies fileSystem, errno@*/ ;
437
438extern int fstat (int fd, /*@out@*/ struct stat *buf)
439 /*@modifies errno, *buf@*/ ;
440
441extern int
442mkdir (const char *path, mode_t mode)
443 /*@modifies fileSystem, errno@*/;
444
445 extern int
446mkfifo (const char *path, mode_t mode)
447 /*@modifies fileSystem, errno@*/;
448
449 extern int
450stat (const char *path, /*@out@*/ struct stat *buf)
451 /*@modifies errno, *buf@*/;
452
453 extern int
454umask (mode_t cmask)
ccf0a4a8 455 /*@modifies systemState@*/;
885824d3 456
457/*
458** sys/times.h
459*/
460
461struct tms {
462 clock_t tms_utime;
463 clock_t tms_stime;
464 clock_t tms_cutime;
465 clock_t tms_cstime;
466};
467
468 extern clock_t
469times (/*@out@*/ struct tms *tp)
470 /*@modifies *tp@*/;
471
472/*
473** sys/utsname.h
474*/
475
476struct utsname {
477 char sysname[];
478 char nodename[];
479 char release[];
480 char version[];
481 char machine[];
482};
483
484 extern int
485uname (/*@out@*/ struct utsname *name)
486 /*@modifies *name, errno@*/ ;
487
488/*
489** sys/wait.h
490*/
491
492extern int WEXITSTATUS (int status) /*@*/ ;
493extern int WIFEXITED (int status) /*@*/ ;
494extern int WIFSIGNALED (int status) /*@*/ ;
495extern int WIFSTOPPED (int status) /*@*/ ;
496extern int WSTOPSIG (int status) /*@*/ ;
497extern int WTERMSIG (int status) /*@*/ ;
498
499/*@constant int WUNTRACED@*/
500
ccf0a4a8 501pid_t wait (/*@out@*/ /*@null@*/ int *st)
502 /*@modifies *st, errno, systemState@*/;
885824d3 503
ccf0a4a8 504pid_t waitpid (pid_t pid, /*@out@*/ /*@null@*/ int *st, int opt)
505 /*@modifies *st, errno, systemState@*/;
885824d3 506
507/*
508** termios.h
509*/
510
511typedef unsigned char /*@alt unsigned short@*/ cc_t;
512typedef unsigned long /*@alt long@*/ speed_t;
513typedef unsigned long /*@alt long@*/ tcflag_t;
514
515/*@constant int B0@*/
516/*@constant int B50@*/
517/*@constant int B75@*/
518/*@constant int B110@*/
519/*@constant int B134@*/
520/*@constant int B150@*/
521/*@constant int B200@*/
522/*@constant int B300@*/
523/*@constant int B600@*/
524/*@constant int B1200@*/
525/*@constant int B1800@*/
526/*@constant int B2400@*/
527/*@constant int B4800@*/
528/*@constant int B9600@*/
529/*@constant int B19200@*/
530/*@constant int B38400@*/
531/*@constant int BRKINT@*/
532/*@constant int CLOCAL@*/
533/*@constant int CREAD@*/
534/*@constant int CS5@*/
535/*@constant int CS6@*/
536/*@constant int CS7@*/
537/*@constant int CS8@*/
538/*@constant int CSIZE@*/
539/*@constant int CSTOPB@*/
540/*@constant int ECHO@*/
541/*@constant int ECHOE@*/
542/*@constant int ECHOK@*/
543/*@constant int ECHONL@*/
544/*@constant int HUPCL@*/
545/*@constant int ICANON@*/
546/*@constant int ICRNL@*/
547/*@constant int IEXTEN@*/
548/*@constant int IGNBRK@*/
549/*@constant int IGNCR@*/
550/*@constant int IGNPAR@*/
551/*@constant int IGNLCR@*/
552/*@constant int INPCK@*/
553/*@constant int ISIG@*/
554/*@constant int ISTRIP@*/
555/*@constant int IXOFF@*/
556/*@constant int IXON@*/
557/*@constant int NCCS@*/
558/*@constant int NOFLSH@*/
559/*@constant int OPOST@*/
560/*@constant int PARENB@*/
561/*@constant int PARMRK@*/
562/*@constant int PARODD@*/
563/*@constant int TCIFLUSH@*/
564/*@constant int TCIOFF@*/
565/*@constant int TCIOFLUSH@*/
566/*@constant int TCION@*/
567/*@constant int TCOFLUSH@*/
568/*@constant int TCSADRAIN@*/
569/*@constant int TCSAFLUSH@*/
570/*@constant int TCSANOW@*/
571/*@constant int TOSTOP@*/
572/*@constant int VEOF@*/
573/*@constant int VEOL@*/
574/*@constant int VERASE@*/
575/*@constant int VINTR@*/
576/*@constant int VKILL@*/
577/*@constant int VMIN@*/
578/*@constant int VQUIT@*/
579/*@constant int VSTART@*/
580/*@constant int VSTOP@*/
581/*@constant int VSUSP@*/
582/*@constant int VTIME@*/
583
584struct termios {
585 tcflag_t c_iflag;
586 tcflag_t c_oflag;
587 tcflag_t c_cflag;
588 tcflag_t c_lflag;
589 cc_t c_cc;
590} ;
591
592 extern speed_t
593cfgetispeed (const struct termios *p)
594 /*@*/;
595
596 extern speed_t
597cfgetospeed (const struct termios *p)
598 /*@*/;
599
600 extern int
601cfsetispeed (struct termios *p)
602 /*@modifies *p@*/;
603
604 extern int
605cfsetospeed (struct termios *p)
606 /*@modifies *p@*/;
607
608 extern int
609tcdrain (int fd)
610 /*@modifies errno@*/;
611
612 extern int
613tcflow (int fd, int action)
614 /*@modifies errno@*/;
615
616 extern int
617tcflush (int fd, int qs)
618 /*@modifies errno@*/;
619
620 extern int
621tcgetattr (int fd, /*@out@*/ struct termios *p)
622 /*@modifies errno, *p@*/;
623
624 extern int
625tcsendbreak (int fd, int d)
626 /*@modifies errno@*/;
627
628 extern int
629tcsetattr (int fd, int opt, const struct termios *p)
630 /*@modifies errno@*/;
631
632/*
633** time.h
634*/
635
636/* Environ must be known before it can be used in `globals' clauses. */
637
638/*@unchecked@*/ extern char **environ;
639
640/*@constant int CLK_TCK@*/
641
642 extern void
643tzset (void)
ccf0a4a8 644 /*@globals environ@*/ /*@modifies systemState@*/;
885824d3 645
646/*
647** unistd.h
648*/
649
650/*@constant int F_OK@*/
651/*@constant int R_OK@*/
652/*@constant int SEEK_CUR@*/
653/*@constant int SEEK_END@*/
654/*@constant int SEEK_SET@*/
655/*@constant int STDERR_FILENO@*/
656/*@constant int STDIN_FILENO@*/
657/*@constant int STDOUT_FILENO@*/
658/*@constant int W_OK@*/
659/*@constant int X_OK@*/
660/*@constant int _PC_CHOWN_RESTRUCTED@*/
661/*@constant int _PC_MAX_CANON@*/
662/*@constant int _PC_MAX_INPUT@*/
663/*@constant int _PC_NAME_MAX@*/
664/*@constant int _PC_NO_TRUNC@*/
665/*@constant int _PC_PATH_MAX@*/
666/*@constant int _PC_PIPE_BUF@*/
667/*@constant int _PC_VDISABLE@*/
668/*@constant int _POSIX_CHOWN_RESTRICTED@*/
669/*@constant int _POSIX_JOB_CONTROL@*/
670/*@constant int _POSIX_NO_TRUNC@*/
671/*@constant int _POSIX_SAVED_IDS@*/
672/*@constant int _POSIX_VDISABLE@*/
673/*@constant int _POSIX_VERSION@*/
674/*@constant int _SC_ARG_MAX@*/
675/*@constant int _SC_CHILD_MAX@*/
676/*@constant int _SC_CLK_TCK@*/
677/*@constant int _SC_JOB_CONTROL@*/
678/*@constant int _SC_NGROUPS_MAX@*/
679/*@constant int _SC_OPEN_MAX@*/
680/*@constant int _SC_SAVED_IDS@*/
681/*@constant int _SC_STREAM_MAX@*/
682/*@constant int _SC_TZNAME_MAX@*/
683/*@constant int _SC_VERSION@*/
684
685 extern /*@exits@*/ void
686_exit (int status)
687 /*@*/;
688
689 extern int
690access (const char *path, int mode)
691 /*@modifies errno@*/;
692
693 extern unsigned int
694alarm (unsigned int)
ccf0a4a8 695 /*@modifies systemState@*/;
885824d3 696
697 extern int
698chdir (const char *path)
699 /*@modifies errno@*/;
700
701 extern int
702chown (const char *path, uid_t owner, gid_t group)
703 /*@modifies fileSystem, errno@*/;
704
705 extern int
706close (int fd)
ccf0a4a8 707 /*@modifies fileSystem, errno, systemState@*/;
885824d3 708 /* state: record locks are unlocked */
709
710 extern char *
711ctermid (/*@returned@*/ /*@out@*/ /*@null@*/ char *s)
ccf0a4a8 712 /*@modifies *s, systemState@*/;
885824d3 713
714 /* cuserid is in the 1988 version of POSIX but removed in 1990 */
715 extern char *
716cuserid (/*@null@*/ /*@out@*/ char *s)
717 /*@modifies *s@*/;
718
719 extern int
720dup2 (int fd, int fd2)
721 /*@modifies errno, fileSystem@*/;
722
723 extern int
724dup (int fd)
725 /*@modifies errno, fileSystem@*/;
726
727 extern /*@mayexit@*/ int
728execl (const char *path, const char *arg, ...)
729 /*@modifies errno@*/;
730
731 extern /*@mayexit@*/ int
732execle (const char *file, const char *arg, ...)
733 /*@modifies errno@*/;
734
735 extern /*@mayexit@*/ int
736execlp (const char *file, const char *arg, ...)
737 /*@modifies errno@*/;
738
739 extern /*@mayexit@*/ int
740execv (const char *path, char *const argv[])
741 /*@modifies errno@*/;
742
743 extern /*@mayexit@*/ int
744execve (const char *path, char *const argv[], char *const *envp)
745 /*@modifies errno@*/;
746
747 extern /*@mayexit@*/ int
748execvp (const char *file, char *const argv[])
749 /*@modifies errno@*/;
750
751 extern pid_t
752fork (void)
753 /*@modifies fileSystem, errno@*/;
754
755 extern long
756fpathconf (int fd, int name)
757 /*@modifies errno@*/;
758
759 extern char *
760getcwd (/*@returned@*/ /*@out@*/ char *buf, size_t size)
761 /*@modifies errno, *buf@*/;
762
763 extern gid_t
764getegid (void)
765 /*@*/;
766
767 extern uid_t
768geteuid (void)
769 /*@*/;
770
771 extern gid_t
772getgid (void)
773 /*@*/;
774
775 extern int
776getgroups (int gs, /*@out@*/ gid_t gl[])
777 /*@modifies errno, gl[]@*/;
778
779 extern /*@observer@*/ char *
780getlogin (void)
781 /*@*/;
782
783 extern pid_t
784getpgrp (void)
785 /*@*/;
786
787 extern pid_t
788getpid (void)
789 /*@*/;
790
791 extern pid_t
792getppid (void)
793 /*@*/;
794
795 extern uid_t
796getuid (void)
797 /*@*/;
798
799 extern int
800isatty (int fd)
801 /*@*/;
802
803 extern int
804link (const char *o, const char *n)
805 /*@modifies errno, fileSystem@*/;
806
807 extern off_t
808lseek (int fd, off_t offset, int whence)
809 /*@modifies errno@*/;
810
811 extern long
812pathconf (const char *path, int name)
813 /*@modifies errno@*/;
814
815 extern int
816pause (void)
817 /*@modifies errno@*/;
818
819 extern int
820pipe (/*@out@*/ int fd[]) /* Out parameter noticed by Marc Espie. */
821 /*@modifies errno@*/;
822
823 extern ssize_t
824read (int fd, /*@out@*/ void *buf, size_t nbyte)
825 /*@modifies errno, *buf@*/;
826
827 extern int
828rmdir (const char *path)
829 /*@modifies fileSystem, errno@*/;
830
831 extern int
832setgid (gid_t gid)
ccf0a4a8 833 /*@modifies errno, systemState@*/;
885824d3 834
835 extern int
836setpgid (pid_t pid, pid_t pgid)
ccf0a4a8 837 /*@modifies errno, systemState@*/;
885824d3 838
839 extern pid_t
840setsid (void)
841 /*@*/;
842
843 extern int
844setuid (uid_t uid)
ccf0a4a8 845 /*@modifies errno, systemState@*/;
885824d3 846
ccf0a4a8 847unsigned int sleep (unsigned int sec) /*@modifies systemState@*/ ;
885824d3 848
849 extern long
850sysconf (int name)
851 /*@modifies errno@*/;
852
853 extern pid_t
854tcgetpgrp (int fd)
855 /*@modifies errno@*/;
856
857 extern int
858tcsetpgrp (int fd, pid_t pgrpid)
ccf0a4a8 859 /*@modifies errno, systemState@*/;
885824d3 860
861 /* Q: observer ok? */
862 extern /*@null@*/ /*@observer@*/ char *
863ttyname (int fd)
864 /*@modifies errno@*/;
865
866 extern int
867unlink (const char *path)
868 /*@modifies fileSystem, errno@*/;
869
870 extern ssize_t
871write (int fd, const void *buf, size_t nbyte)
872 /*@modifies errno@*/;
873
874/*
875** utime.h
876*/
877
878struct utimbuf {
879 time_t actime;
880 time_t modtime;
881} ;
882
883 extern int
884utime (const char *path, /*@null@*/ const struct utimbuf *times)
885 /*@modifies fileSystem, errno@*/;
886
b072092f 887/*
888** regex.h
889*/
890
891typedef /*@abstract@*/ /*@mutable@*/ void *regex_t;
892typedef /*@integraltype@*/ regoff_t;
893
894typedef struct
895{
896 regoff_t rm_so;
897 regoff_t rm_eo;
898} regmatch_t;
899
900int regcomp (/*@out@*/ regex_t *preg, /*@nullterminated@*/ const char *regex, int cflags)
901 /*:statusreturn@*/
902 /*@modifies preg@*/ ;
903
904int regexec (const regex_t *preg, /*@nullterminated@*/ const char *string, size_t nmatch, /*@out@*/ regmatch_t pmatch[], int eflags)
905 /*@requires maxSet(pmatch) >= nmatch@*/
906 /*@modifies pmatch@*/ ;
907
908size_t regerror (int errcode, const regex_t *preg, /*@out@*/ char *errbuf, size_t errbuf_size)
909 /*@requires maxSet(errbuf) >= errbuf_size@*/
910 /*@modifies errbuf@*/ ;
911
912void regfree (/*@only@*/ regex_t *preg) ;
913
914/* regcomp flags */
915/*@constant int REG_BASIC@*/
916/*@constant int REG_EXTENDED@*/
917/*@constant int REG_ICASE@*/
918/*@constant int REG_NOSUB@*/
919/*@constant int REG_NEWLINE@*/
920/*@constant int REG_NOSPEC@*/
921/*@constant int REG_PEND@*/
922/*@constant int REG_DUMP@*/
923
924/* regerror flags */
925/*@constant int REG_NOMATCH@*/
926/*@constant int REG_BADPAT@*/
927/*@constant int REG_ECOLLATE@*/
928/*@constant int REG_ECTYPE@*/
929/*@constant int REG_EESCAPE@*/
930/*@constant int REG_ESUBREG@*/
931/*@constant int REG_EBRACK@*/
932/*@constant int REG_EPAREN@*/
933/*@constant int REG_EBRACE@*/
934/*@constant int REG_BADBR@*/
935/*@constant int REG_ERANGE@*/
936/*@constant int REG_ESPACE@*/
937/*@constant int REG_BADRPT@*/
938/*@constant int REG_EMPTY@*/
939/*@constant int REG_ASSERT@*/
940/*@constant int REG_INVARG@*/
941/*@constant int REG_ATOI@*/ /* non standard */
942/*@constant int REG_ITOA@*/ /* non standard */
943
944/* regexec flags */
945/*@constant int REG_NOTBOL@*/
946/*@constant int REG_NOTEOL@*/
947/*@constant int REG_STARTEND@*/
948/*@constant int REG_TRACE@*/
949/*@constant int REG_LARGE@*/
950/*@constant int REG_BACKR@*/
951
ccf0a4a8 952
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