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perl 5.000
[perl5.git] / ext / POSIX / POSIX.pm
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1package POSIX;
2
3use Carp;
4require Exporter;
5require AutoLoader;
6require DynaLoader;
7require Config;
8@ISA = (Exporter, AutoLoader, DynaLoader);
9
10$H{assert_h} = [qw(assert NDEBUG)];
11
12$H{ctype_h} = [qw(isalnum isalpha iscntrl isdigit isgraph islower
13 isprint ispunct isspace isupper isxdigit tolower toupper)];
14
15$H{dirent_h} = [qw()];
16
17$H{errno_h} = [qw(E2BIG EACCES EAGAIN EBADF EBUSY ECHILD EDEADLK EDOM
18 EEXIST EFAULT EFBIG EINTR EINVAL EIO EISDIR EMFILE
19 EMLINK ENAMETOOLONG ENFILE ENODEV ENOENT ENOEXEC ENOLCK
20 ENOMEM ENOSPC ENOSYS ENOTDIR ENOTEMPTY ENOTTY ENXIO
21 EPERM EPIPE ERANGE EROFS ESPIPE ESRCH EXDEV errno)];
22
23$H{fcntl_h} = [qw(FD_CLOEXEC F_DUPFD F_GETFD F_GETFL F_GETLK F_RDLCK
24 F_SETFD F_SETFL F_SETLK F_SETLKW F_UNLCK F_WRLCK
25 O_ACCMODE O_APPEND O_CREAT O_EXCL O_NOCTTY O_NONBLOCK
26 O_RDONLY O_RDWR O_TRUNC O_WRONLY
27 creat
28 SEEK_CUR SEEK_END SEEK_SET
29 S_IRGRP S_IROTH S_IRUSR S_IRWXG S_IRWXO S_IRWXU
30 S_ISBLK S_ISCHR S_ISDIR S_ISFIFO S_ISGID S_ISREG S_ISUID
31 S_IWGRP S_IWOTH S_IWUSR)];
32
33$H{float_h} = [qw(DBL_DIG DBL_EPSILON DBL_MANT_DIG
34 DBL_MAX DBL_MAX_10_EXP DBL_MAX_EXP
35 DBL_MIN DBL_MIN_10_EXP DBL_MIN_EXP
36 FLT_DIG FLT_EPSILON FLT_MANT_DIG
37 FLT_MAX FLT_MAX_10_EXP FLT_MAX_EXP
38 FLT_MIN FLT_MIN_10_EXP FLT_MIN_EXP
39 FLT_RADIX FLT_ROUNDS
40 LDBL_DIG LDBL_EPSILON LDBL_MANT_DIG
41 LDBL_MAX LDBL_MAX_10_EXP LDBL_MAX_EXP
42 LDBL_MIN LDBL_MIN_10_EXP LDBL_MIN_EXP)];
43
44$H{grp_h} = [qw()];
45
46$H{limits_h} = [qw( ARG_MAX CHAR_BIT CHAR_MAX CHAR_MIN CHILD_MAX
47 INT_MAX INT_MIN LINK_MAX LONG_MAX LONG_MIN MAX_CANON
48 MAX_INPUT MB_LEN_MAX NAME_MAX NGROUPS_MAX OPEN_MAX
49 PATH_MAX PIPE_BUF SCHAR_MAX SCHAR_MIN SHRT_MAX SHRT_MIN
50 SSIZE_MAX STREAM_MAX TZNAME_MAX UCHAR_MAX UINT_MAX
51 ULONG_MAX USHRT_MAX _POSIX_ARG_MAX _POSIX_CHILD_MAX
52 _POSIX_LINK_MAX _POSIX_MAX_CANON _POSIX_MAX_INPUT
53 _POSIX_NAME_MAX _POSIX_NGROUPS_MAX _POSIX_OPEN_MAX
54 _POSIX_PATH_MAX _POSIX_PIPE_BUF _POSIX_SSIZE_MAX
55 _POSIX_STREADM_MAX _POSIX_TZNAME_MAX)];
56
57$H{locale_h} = [qw(LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY LC_NUMERIC
58 LC_TIME NULL localeconv setlocale)];
59
60$H{math_h} = [qw(HUGE_VAL acos asin atan ceil cosh fabs floor fmod
61 frexp ldexp log10 modf pow sinh tanh)];
62
63$H{pwd_h} = [qw()];
64
65$H{setjmp_h} = [qw(longjmp setjmp siglongjmp sigsetjmp)];
66
67$H{signal_h} = [qw(SA_NOCLDSTOP SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE
68 SIGHUP SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
69 SIGSTOP SIGTERM SIGTSTP SIGTTIN SIGTTOU SIGUSR1 SIGUSR2
70 SIG_BLOCK SIG_DFL SIG_ERR SIG_IGN SIG_SETMASK SIG_UNBLOCK
71 raise sigaction signal sigpending sigprocmask
72 sigsuspend)];
73
74$H{stdarg_h} = [qw()];
75
76$H{stddef_h} = [qw(NULL offsetof)];
77
78$H{stdio_h} = [qw(BUFSIZ EOF FILENAME_MAX L_ctermid L_cuserid
79 L_tmpname NULL SEEK_CUR SEEK_END SEEK_SET STREAM_MAX
80 TMP_MAX stderr stdin stdout _IOFBF _IOLBF _IONBF
81 clearerr fclose fdopen feof ferror fflush fgetc fgetpos
82 fgets fopen fprintf fputc fputs fread freopen
83 fscanf fseek fsetpos ftell fwrite getchar gets
84 perror putc putchar puts remove rewind
85 scanf setbuf setvbuf sscanf tmpfile tmpnam
86 ungetc vfprintf vprintf vsprintf)];
87
88$H{stdlib_h} = [qw(EXIT_FAILURE EXIT_SUCCESS MB_CUR_MAX NULL RAND_MAX
89 abort atexit atof atoi atol bsearch calloc div
90 free getenv labs ldiv malloc mblen mbstowcs mbtowc
91 qsort realloc strtod strtol stroul wcstombs wctomb)];
92
93$H{string_h} = [qw(NULL memchr memcmp memcpy memmove memset strcat
94 strchr strcmp strcoll strcpy strcspn strerror strlen
95 strncat strncmp strncpy strpbrk strrchr strspn strstr
96 strtok strxfrm)];
97
98$H{sys_stat_h} = [qw(S_IRGRP S_IROTH S_IRUSR S_IRWXG S_IRWXO S_IRWXU
99 S_ISBLK S_ISCHR S_ISDIR S_ISFIFO S_ISGID S_ISREG
100 S_ISUID S_IWGRP S_IWOTH S_IWUSR S_IXGRP S_IXOTH S_IXUSR
101 fstat mkfifo)];
102
103$H{sys_times_h} = [qw()];
104
105$H{sys_types_h} = [qw()];
106
107$H{sys_utsname_h} = [qw(uname)];
108
109$H{sys_wait_h} = [qw(WEXITSTATUS WIFEXITED WIFSIGNALED WIFSTOPPED
110 WNOHANG WSTOPSIG WTERMSIG WUNTRACED)];
111
112$H{termios_h} = [qw( B0 B110 B1200 B134 B150 B1800 B19200 B200 B2400
113 B300 B38400 B4800 B50 B600 B75 B9600 BRKINT CLOCAL
114 CREAD CS5 CS6 CS7 CS8 CSIZE CSTOPB ECHO ECHOE ECHOK
115 ECHONL HUPCL ICANON ICRNL IEXTEN IGNBRK IGNCR IGNPAR
116 INLCR INPCK ISIG ISTRIP IXOFF IXON NCCS NOFLSH OPOST
117 PARENB PARMRK PARODD TCIFLUSH TCIOFF TCIOFLUSH TCION
118 TCOFLUSH TCOOFF TCOON TCSADRAIN TCSAFLUSH TCSANOW
119 TOSTOP VEOF VEOL VERASE VINTR VKILL VMIN VQUIT VSTART
120 VSTOP VSUSP VTIME
121 cfgetispeed cfgetospeed cfsetispeed cfsetospeed tcdrain
122 tcflow tcflush tcgetattr tcsendbreak tcsetattr )];
123
124$H{time_h} = [qw(CLK_TCK CLOCKS_PER_SEC NULL asctime clock ctime
125 difftime mktime strftime tzset tzname)];
126
127$H{unistd_h} = [qw(F_OK NULL R_OK SEEK_CUR SEEK_END SEEK_SET
128 STRERR_FILENO STDIN_FILENO STDOUT_FILENO W_OK X_OK
129 _PC_CHOWN_RESTRICTED _PC_LINK_MAX _PC_MAX_CANON
130 _PC_MAX_INPUT _PC_NAME_MAX _PC_NO_TRUNC _PC_PATH_MAX
131 _PC_PIPE_BUF _PC_VDISABLE _POSIX_CHOWN_RESTRICTED
132 _POSIX_JOB_CONTROL _POSIX_NO_TRUNC _POSIX_SAVED_IDS
133 _POSIX_VDISABLE _POSIX_VERSION _SC_ARG_MAX
134 _SC_CHILD_MAX _SC_CLK_TCK _SC_JOB_CONTROL
135 _SC_NGROUPS_MAX _SC_OPEN_MAX _SC_SAVED_IDS
136 _SC_STREAM_MAX _SC_TZNAME_MAX _SC_VERSION
137 _exit access ctermid cuserid
138 dup2 dup execl execle execlp execv execve execvp
139 fpathconf getcwd getegid geteuid getgid getgroups
140 getpid getuid isatty lseek pathconf pause setgid setpgid
141 setsid setuid sysconf tcgetpgrp tcsetpgrp ttyname)];
142
143$H{utime_h} = [qw()];
144
145sub expand {
146 local (@mylist);
147 foreach $entry (@_) {
148 if ($H{$entry}) {
149 push(@mylist, @{$H{$entry}});
150 }
151 else {
152 push(@mylist, $entry);
153 }
154 }
155 @mylist;
156}
157
158@EXPORT = expand qw(assert_h ctype_h dirent_h errno_h fcntl_h float_h
159 grp_h limits_h locale_h math_h pwd_h setjmp_h signal_h
160 stdarg_h stddef_h stdio_h stdlib_h string_h sys_stat_h
161 sys_times_h sys_types_h sys_utsname_h sys_wait_h
162 termios_h time_h unistd_h utime_h);
163
164@EXPORT_OK = qw(
165 closedir opendir readdir rewinddir
166 fcntl open
167 getgrgid getgrnam
168 atan2 cos exp log sin sqrt tan
169 getpwnam getpwuid
170 kill
171 fileno getc printf rename sprintf
172 abs exit rand srand system
173 chmod mkdir stat umask
174 times
175 wait waitpid
176 gmtime localtime time
177 alarm chdir chown close fork getlogin getppid getpgrp link
178 pipe read rmdir sleep unlink write
179 utime
180);
181
182sub import {
183 my $this = shift;
184 my @list = expand @_;
185 local $Exporter::ExportLevel = 1;
186 Exporter::import($this,@list);
187}
188
189sub AUTOLOAD {
190 if ($AUTOLOAD =~ /::(_?[a-z])/) {
191 $AutoLoader::AUTOLOAD = $AUTOLOAD;
192 goto &AutoLoader::AUTOLOAD
193 }
194 local $constname = $AUTOLOAD;
195 $constname =~ s/.*:://;
196 $val = constant($constname, $_[0]);
197 if ($! != 0) {
198 if ($! =~ /Invalid/) {
199 croak "$constname is not a valid POSIX macro";
200 }
201 else {
202 croak "Your vendor has not defined POSIX macro $constname, used";
203 }
204 }
205 eval "sub $AUTOLOAD { $val }";
206 goto &$AUTOLOAD;
207}
208
209
210@liblist = ();
211@liblist = split ' ', $Config::Config{"POSIX_loadlibs"}
212 if defined $Config::Config{"POSIX_loadlibs"};
213bootstrap POSIX @liblist;
214
215sub usage {
216 local ($mess) = @_;
217 croak "Usage: POSIX::$mess";
218}
219
220sub redef {
221 local ($mess) = @_;
222 croak "Use method $mess instead";
223}
224
225sub unimpl {
226 local ($mess) = @_;
227 $mess =~ s/xxx//;
228 croak "Unimplemented: POSIX::$mess";
229}
230
231$gensym = "SYM000";
232
233sub gensym {
234 *{"POSIX::" . $gensym++};
235}
236
237sub ungensym {
238 local($x) = shift;
239 $x =~ s/.*:://;
240 delete $::_POSIX{$x};
241}
242
243############################
244package POSIX::SigAction;
245
246sub new {
247 bless {HANDLER => $_[1], MASK => $_[2], FLAGS => $_[3]};
248}
249
250############################
251package FileHandle;
252
253sub new {
254 POSIX::usage "FileHandle->new(filename, posixmode)" if @_ != 3;
255 local($class,$filename,$mode) = @_;
256 local($glob) = &POSIX::gensym;
257 $mode =~ s/a.*/>>/ ||
258 $mode =~ s/w.*/>/ ||
259 ($mode = '<');
260 open($glob, "$mode $filename");
261 bless \$glob;
262}
263
264sub new_from_fd {
265 POSIX::usage "FileHandle->new_from_fd(fd,mode)" if @_ != 3;
266 local($class,$fd,$mode) = @_;
267 local($glob) = &POSIX::gensym;
268 $mode =~ s/a.*/>>/ ||
269 $mode =~ s/w.*/>/ ||
270 ($mode = '<');
271 open($glob, "$mode&=$fd");
272 bless \$glob;
273}
274
275sub clearerr {
276 POSIX::usage "clearerr(filehandle)" if @_ != 1;
277 seek($_[0], 0, 1);
278}
279
280sub close {
281 POSIX::usage "close(filehandle)" if @_ != 1;
282 close($_[0]);
283 ungensym($_[0]);
284}
285
286sub eof {
287 POSIX::usage "eof(filehandle)" if @_ != 1;
288 eof($_[0]);
289}
290
291sub getc {
292 POSIX::usage "getc(filehandle)" if @_ != 1;
293 getc($_[0]);
294}
295
296sub gets {
297 POSIX::usage "gets(filehandle)" if @_ != 1;
298 local($handle) = @_;
299 scalar <$handle>;
300}
301
302sub fileno {
303 POSIX::usage "fileno(filehandle)" if @_ != 1;
304 fileno($_[0]);
305}
306
307sub seek {
308 POSIX::usage "seek(filehandle,pos,whence)" if @_ != 3;
309 seek($_[0], $_[1], $_[2]);
310}
311
312sub tell {
313 POSIX::usage "tell(filehandle)" if @_ != 1;
314 tell($_[0]);
315}
316############################
317package POSIX; # return to package POSIX so AutoSplit is happy
3181;
319__END__
320
321sub assert {
322 usage "assert(expr)" if @_ != 1;
323 if (!$_[0]) {
324 croak "Assertion failed";
325 }
326}
327
328sub tolower {
329 usage "tolower(string)" if @_ != 1;
330 lc($_[0]);
331}
332
333sub toupper {
334 usage "toupper(string)" if @_ != 1;
335 uc($_[0]);
336}
337
338sub closedir {
339 usage "closedir(dirhandle)" if @_ != 1;
340 closedir($_[0]);
341 ungensym($_[0]);
342}
343
344sub opendir {
345 usage "opendir(directory)" if @_ != 1;
346 local($dirhandle) = &gensym;
347 opendir($dirhandle, $_[0])
348 ? $dirhandle
349 : (ungensym($dirhandle), undef);
350}
351
352sub readdir {
353 usage "readdir(dirhandle)" if @_ != 1;
354 readdir($_[0]);
355}
356
357sub rewinddir {
358 usage "rewinddir(dirhandle)" if @_ != 1;
359 rewinddir($_[0]);
360}
361
362sub errno {
363 usage "errno()" if @_ != 0;
364 $! + 0;
365}
366
367sub creat {
368 usage "creat(filename, mode)" if @_ != 2;
369 &open($_[0], &O_WRONLY | &O_CREAT | &O_TRUNC, $_[2]);
370}
371
372sub fcntl {
373 usage "fcntl(filehandle, cmd, arg)" if @_ != 3;
374 fcntl($_[0], $_[1], $_[2]);
375}
376
377sub getgrgid {
378 usage "getgrgid(gid)" if @_ != 1;
379 getgrgid($_[0]);
380}
381
382sub getgrnam {
383 usage "getgrnam(name)" if @_ != 1;
384 getgrnam($_[0]);
385}
386
387sub atan2 {
388 usage "atan2(x,y)" if @_ != 2;
389 atan2($_[0], $_[1]);
390}
391
392sub cos {
393 usage "cos(x)" if @_ != 1;
394 cos($_[0]);
395}
396
397sub exp {
398 usage "exp(x)" if @_ != 1;
399 exp($_[0]);
400}
401
402sub fabs {
403 usage "fabs(x)" if @_ != 1;
404 abs($_[0]);
405}
406
407sub log {
408 usage "log(x)" if @_ != 1;
409 log($_[0]);
410}
411
412sub pow {
413 usage "pow(x,exponent)" if @_ != 2;
414 $_[0] ** $_[1];
415}
416
417sub sin {
418 usage "sin(x)" if @_ != 1;
419 sin($_[0]);
420}
421
422sub sqrt {
423 usage "sqrt(x)" if @_ != 1;
424 sqrt($_[0]);
425}
426
427sub tan {
428 usage "tan(x)" if @_ != 1;
429 tan($_[0]);
430}
431
432sub getpwnam {
433 usage "getpwnam(name)" if @_ != 1;
434 getpwnam($_[0]);
435}
436
437sub getpwuid {
438 usage "getpwuid(uid)" if @_ != 1;
439 getpwuid($_[0]);
440}
441
442sub longjmp {
443 unimpl "longjmp() is C-specific: use die instead";
444}
445
446sub setjmp {
447 unimpl "setjmp() is C-specific: use eval {} instead";
448}
449
450sub siglongjmp {
451 unimpl "siglongjmp() is C-specific: use die instead";
452}
453
454sub sigsetjmp {
455 unimpl "sigsetjmp() is C-specific: use eval {} instead";
456}
457
458sub kill {
459 usage "kill(pid, sig)" if @_ != 2;
460 kill $_[1], $_[0];
461}
462
463sub raise {
464 usage "raise(sig)" if @_ != 1;
465 kill $$, $_[0]; # Is this good enough?
466}
467
468sub offsetof {
469 unimpl "offsetof() is C-specific, stopped";
470}
471
472sub clearerr {
473 redef "$filehandle->clearerr(filehandle)";
474}
475
476sub fclose {
477 redef "$filehandle->fclose(filehandle)";
478}
479
480sub fdopen {
481 redef "FileHandle->new_from_fd(fd,mode)";
482}
483
484sub feof {
485 redef "$filehandle->eof()";
486}
487
488sub fgetc {
489 redef "$filehandle->getc()";
490}
491
492sub fgets {
493 redef "$filehandle->gets()";
494}
495
496sub fileno {
497 redef "$filehandle->fileno()";
498}
499
500sub fopen {
501 redef "FileHandle->open()";
502}
503
504sub fprintf {
505 unimpl "fprintf() is C-specific--use printf instead";
506}
507
508sub fputc {
509 unimpl "fputc() is C-specific--use print instead";
510}
511
512sub fputs {
513 unimpl "fputs() is C-specific--use print instead";
514}
515
516sub fread {
517 unimpl "fread() is C-specific--use read instead";
518}
519
520sub freopen {
521 unimpl "freopen() is C-specific--use open instead";
522}
523
524sub fscanf {
525 unimpl "fscanf() is C-specific--use <> and regular expressions instead";
526}
527
528sub fseek {
529 redef "$filehandle->seek(pos,whence)";
530}
531
532sub ferror {
533 redef "$filehandle->error()";
534}
535
536sub fflush {
537 redef "$filehandle->flush()";
538}
539
540sub fgetpos {
541 redef "$filehandle->getpos()";
542}
543
544sub fsetpos {
545 redef "$filehandle->setpos(pos)";
546}
547
548sub ftell {
549 redef "$filehandle->tell()";
550}
551
552sub fwrite {
553 unimpl "fwrite() is C-specific--use print instead";
554}
555
556sub getc {
557 usage "getc(handle)" if @_ != 1;
558 getc($_[0]);
559}
560
561sub getchar {
562 usage "getchar()" if @_ != 0;
563 getc(STDIN);
564}
565
566sub gets {
567 usage "gets()" if @_ != 0;
568 scalar <STDIN>;
569}
570
571sub perror {
572 print STDERR "@_: " if @_;
573 print STDERR $!,"\n";
574}
575
576sub printf {
577 usage "printf(pattern, args...)" if @_ < 1;
578 printf STDOUT @_;
579}
580
581sub putc {
582 unimpl "putc() is C-specific--use print instead";
583}
584
585sub putchar {
586 unimpl "putchar() is C-specific--use print instead";
587}
588
589sub puts {
590 unimpl "puts() is C-specific--use print instead";
591}
592
593sub remove {
594 usage "remove(filename)" if @_ != 1;
595 unlink($_[0]);
596}
597
598sub rename {
599 usage "rename(oldfilename, newfilename)" if @_ != 2;
600 rename($_[0], $_[1]);
601}
602
603sub rewind {
604 usage "rewind(filehandle)" if @_ != 1;
605 seek($_[0],0,0);
606}
607
608sub scanf {
609 unimpl "scanf() is C-specific--use <> and regular expressions instead";
610}
611
612sub sprintf {
613 usage "sprintf(pattern,args)" if @_ == 0;
614 sprintf(shift,@_);
615}
616
617sub sscanf {
618 unimpl "sscanf() is C-specific--use regular expressions instead";
619}
620
621sub tmpfile {
622 redef "FileHandle->new_tmpfile()";
623}
624
625sub ungetc {
626 redef "$filehandle->ungetc(char)";
627}
628
629sub vfprintf {
630 unimpl "vfprintf() is C-specific";
631}
632
633sub vprintf {
634 unimpl "vprintf() is C-specific";
635}
636
637sub vsprintf {
638 unimpl "vsprintf() is C-specific";
639}
640
641sub abs {
642 usage "abs(x)" if @_ != 1;
643 abs($_[0]);
644}
645
646sub atexit {
647 unimpl "atexit() is C-specific: use END {} instead";
648}
649
650sub atof {
651 unimpl "atof() is C-specific, stopped";
652}
653
654sub atoi {
655 unimpl "atoi() is C-specific, stopped";
656}
657
658sub atol {
659 unimpl "atol() is C-specific, stopped";
660}
661
662sub bsearch {
663 unimpl "bsearch(xxx)" if @_ != 123;
664 bsearch($_[0]);
665}
666
667sub calloc {
668 unimpl "calloc() is C-specific, stopped";
669}
670
671sub div {
672 unimpl "div() is C-specific, stopped";
673}
674
675sub exit {
676 usage "exit(status)" if @_ != 1;
677 exit($_[0]);
678}
679
680sub free {
681 unimpl "free() is C-specific, stopped";
682 free($_[0]);
683}
684
685sub getenv {
686 usage "getenv(name)" if @_ != 1;
687 $ENV{$_[0]};
688}
689
690sub labs {
691 unimpl "labs() is C-specific, use abs instead";
692}
693
694sub ldiv {
695 unimpl "ldiv() is C-specific, use / and int instead";
696}
697
698sub malloc {
699 unimpl "malloc() is C-specific, stopped";
700}
701
702sub qsort {
703 unimpl "qsort() is C-specific, use sort instead";
704}
705
706sub rand {
707 unimpl "rand() is non-portable, use Perl's rand instead";
708}
709
710sub realloc {
711 unimpl "realloc() is C-specific, stopped";
712}
713
714sub srand {
715 unimpl "srand()";
716}
717
718sub strtod {
719 unimpl "strtod() is C-specific, stopped";
720}
721
722sub strtol {
723 unimpl "strtol() is C-specific, stopped";
724}
725
726sub stroul {
727 unimpl "stroul() is C-specific, stopped";
728}
729
730sub system {
731 usage "system(command)" if @_ != 1;
732 system($_[0]);
733}
734
735sub memchr {
736 unimpl "memchr() is C-specific, use index() instead";
737}
738
739sub memcmp {
740 unimpl "memcmp() is C-specific, use eq instead";
741}
742
743sub memcpy {
744 unimpl "memcpy() is C-specific, use = instead";
745 memcpy($_[0]);
746
747sub memmove {
748 unimpl "memmove() is C-specific, use = instead";
749}
750
751sub memset {
752 unimpl "memset() is C-specific, use x instead";
753}
754
755sub strcat {
756 unimpl "strcat() is C-specific, use .= instead";
757}
758
759sub strchr {
760 unimpl "strchr() is C-specific, use index() instead";
761}
762
763sub strcmp {
764 unimpl "strcmp() is C-specific, use eq instead";
765}
766
767sub strcpy {
768 unimpl "strcpy() is C-specific, use = instead";
769}
770
771sub strcspn {
772 unimpl "strcspn() is C-specific, use regular expressions instead";
773}
774
775sub strerror {
776 usage "strerror(errno)" if @_ != 1;
777 local $! = $_[0];
778 $! . "";
779}
780
781sub strlen {
782 unimpl "strlen() is C-specific, use length instead";
783}
784
785sub strncat {
786 unimpl "strncat() is C-specific, use .= instead";
787}
788
789sub strncmp {
790 unimpl "strncmp() is C-specific, use eq instead";
791}
792
793sub strncpy {
794 unimpl "strncpy() is C-specific, use = instead";
795}
796
797sub strpbrk {
798 unimpl "strpbrk() is C-specific, stopped";
799}
800
801sub strrchr {
802 unimpl "strrchr() is C-specific, use rindex() instead";
803}
804
805sub strspn {
806 unimpl "strspn() is C-specific, stopped";
807}
808
809sub strstr {
810 usage "strstr(big, little)" if @_ != 2;
811 index($_[0], $_[1]);
812}
813
814sub strtok {
815 unimpl "strtok() is C-specific, stopped";
816}
817
818sub chmod {
819 usage "chmod(filename, mode)" if @_ != 2;
820 chmod($_[0], $_[1]);
821}
822
823sub fstat {
824 usage "fstat(fd)" if @_ != 1;
825 local(*TMP);
826 open(TMP, "<&$_[0]"); # Gross.
827 local(@l) = stat(TMP);
828 close(TMP);
829 @l;
830}
831
832sub mkdir {
833 usage "mkdir(directoryname, mode)" if @_ != 2;
834 mkdir($_[0], $_[1]);
835}
836
837sub stat {
838 usage "stat(filename)" if @_ != 1;
839 stat($_[0]);
840}
841
842sub umask {
843 usage "umask(mask)" if @_ != 1;
844 umask($_[0]);
845}
846
847sub times {
848 usage "times()" if @_ != 0;
849 times();
850}
851
852sub wait {
853 usage "wait(statusvariable)" if @_ != 1;
854 local $result = wait();
855 $_[0] = $?;
856 $result;
857}
858
859sub waitpid {
860 usage "waitpid(pid, statusvariable, options)" if @_ != 3;
861 local $result = waitpid($_[0], $_[2]);
862 $_[1] = $?;
863 $result;
864}
865
866sub gmtime {
867 usage "gmtime(time)" if @_ != 1;
868 gmtime($_[0]);
869}
870
871sub localtime {
872 usage "localtime(time)" if @_ != 1;
873 localtime($_[0]);
874}
875
876sub time {
877 unimpl "time()" if @_ != 0;
878 time;
879}
880
881sub alarm {
882 usage "alarm(seconds)" if @_ != 1;
883 alarm($_[0]);
884}
885
886sub chdir {
887 usage "chdir(directory)" if @_ != 1;
888 chdir($_[0]);
889}
890
891sub chown {
892 usage "chown(filename, uid, gid)" if @_ != 3;
893 chown($_[0], $_[1], $_[2]);
894}
895
896sub execl {
897 unimpl "execl() is C-specific, stopped";
898 execl($_[0]);
899}
900
901sub execle {
902 unimpl "execle() is C-specific, stopped";
903 execle($_[0]);
904}
905
906sub execlp {
907 unimpl "execlp() is C-specific, stopped";
908 execlp($_[0]);
909}
910
911sub execv {
912 unimpl "execv() is C-specific, stopped";
913 execv($_[0]);
914}
915
916sub execve {
917 unimpl "execve() is C-specific, stopped";
918 execve($_[0]);
919}
920
921sub execvp {
922 unimpl "execvp() is C-specific, stopped";
923 execvp($_[0]);
924}
925
926sub fork {
927 usage "fork()" if @_ != 0;
928 fork;
929}
930
931sub getcwd
932{
933 usage "getcwd()" if @_ != 0;
934 chop($cwd = `pwd`);
935 $cwd;
936}
937
938sub getegid {
939 usage "getegid()" if @_ != 0;
940 $) + 0;
941}
942
943sub geteuid {
944 usage "geteuid()" if @_ != 0;
945 $> + 0;
946}
947
948sub getgid {
949 usage "getgid()" if @_ != 0;
950 $( + 0;
951}
952
953sub getgroups {
954 usage "getgroups()" if @_ != 0;
955 local(%seen) = ();
956 grep(!$seen{$_}++, split(' ', $) ));
957}
958
959sub getlogin {
960 usage "getlogin()" if @_ != 0;
961 getlogin();
962}
963
964sub getpgrp {
965 usage "getpgrp()" if @_ != 0;
966 getpgrp($_[0]);
967}
968
969sub getpid {
970 usage "getpid()" if @_ != 0;
971 $$;
972}
973
974sub getppid {
975 usage "getppid()" if @_ != 0;
976 getppid;
977}
978
979sub getuid {
980 usage "getuid()" if @_ != 0;
981 $<;
982}
983
984sub isatty {
985 usage "isatty(filehandle)" if @_ != 1;
986 -t $_[0];
987}
988
989sub link {
990 usage "link(oldfilename, newfilename)" if @_ != 2;
991 link($_[0], $_[1]);
992}
993
994sub rmdir {
995 usage "rmdir(directoryname)" if @_ != 1;
996 rmdir($_[0]);
997}
998
999sub setgid {
1000 usage "setgid(gid)" if @_ != 1;
1001 $( = $_[0];
1002}
1003
1004sub setuid {
1005 usage "setuid(uid)" if @_ != 1;
1006 $< = $_[0];
1007}
1008
1009sub sleep {
1010 usage "sleep(seconds)" if @_ != 1;
1011 sleep($_[0]);
1012}
1013
1014sub unlink {
1015 usage "unlink(filename)" if @_ != 1;
1016 unlink($_[0]);
1017}
1018
1019sub utime {
1020 usage "utime(filename, atime, mtime)" if @_ != 3;
1021 utime($_[1], $_[2], $_[0]);
1022}
1023