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[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
3 * Copyright (c) 1991-1994, Larry Wall
4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10/*
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
15 */
16
17#include "EXTERN.h"
18#include "perl.h"
19
16d20bd9
AD		 20/* XXX Omit this -- it causes too much grief on mixed systems.
21 Next time, I should force broken systems to unset i_unistd in
22 hint files.
a0d0e21e 23*/
16d20bd9
AD		 24#if 0
25# ifdef I_UNISTD
26# include <unistd.h>
27# endif
28#endif
a0d0e21e 29
94b6baf5
AD		 30/* Put this after #includes because fork and vfork prototypes may
31 conflict.
32*/
33#ifndef HAS_VFORK
34# define vfork fork
35#endif
36
a0d0e21e
LW		 37#if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
38# include <sys/socket.h>
39# include <netdb.h>
40# ifndef ENOTSOCK
41# ifdef I_NET_ERRNO
42# include <net/errno.h>
43# endif
44# endif
45#endif
46
47#ifdef HAS_SELECT
48#ifdef I_SYS_SELECT
49#ifndef I_SYS_TIME
50#include <sys/select.h>
51#endif
52#endif
53#endif
54
55#ifdef HOST_NOT_FOUND
56extern int h_errno;
57#endif
58
59#ifdef HAS_PASSWD
60# ifdef I_PWD
61# include <pwd.h>
62# else
63 struct passwd *getpwnam _((char *));
64 struct passwd *getpwuid _((Uid_t));
65# endif
66 struct passwd *getpwent _((void));
67#endif
68
69#ifdef HAS_GROUP
70# ifdef I_GRP
71# include <grp.h>
72# else
73 struct group *getgrnam _((char *));
74 struct group *getgrgid _((Gid_t));
75# endif
76 struct group *getgrent _((void));
77#endif
78
79#ifdef I_UTIME
80#include <utime.h>
81#endif
82#ifdef I_FCNTL
83#include <fcntl.h>
84#endif
85#ifdef I_SYS_FILE
86#include <sys/file.h>
87#endif
88
89#ifdef HAS_GETPGRP2
90# define getpgrp getpgrp2
91#endif
92
93#ifdef HAS_SETPGRP2
94# define setpgrp setpgrp2
95#endif
96
97#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
98static int dooneliner _((char *cmd, char *filename));
99#endif
100/* Pushy I/O. */
101
102PP(pp_backtick)
103{
104 dSP; dTARGET;
105 FILE *fp;
106 char *tmps = POPp;
107 TAINT_PROPER("``");
108 fp = my_popen(tmps, "r");
109 if (fp) {
110 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
111 if (GIMME == G_SCALAR) {
112 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
113 /*SUPPRESS 530*/
114 ;
115 XPUSHs(TARG);
116 }
117 else {
118 SV *sv;
119
120 for (;;) {
121 sv = NEWSV(56, 80);
122 if (sv_gets(sv, fp, 0) == Nullch) {
123 SvREFCNT_dec(sv);
124 break;
125 }
126 XPUSHs(sv_2mortal(sv));
127 if (SvLEN(sv) - SvCUR(sv) > 20) {
128 SvLEN_set(sv, SvCUR(sv)+1);
129 Renew(SvPVX(sv), SvLEN(sv), char);
130 }
131 }
132 }
4633a7c4 133 statusvalue = FIXSTATUS(my_pclose(fp));
a0d0e21e
LW		 134 }
135 else {
136 statusvalue = -1;
137 if (GIMME == G_SCALAR)
138 RETPUSHUNDEF;
139 }
140
141 RETURN;
142}
143
144PP(pp_glob)
145{
146 OP *result;
147 ENTER;
148 SAVEINT(rschar);
149 SAVEINT(rslen);
150
151 SAVESPTR(last_in_gv); /* We don't want this to be permanent. */
152 last_in_gv = (GV*)*stack_sp--;
153
154 rslen = 1;
155#ifdef DOSISH
156 rschar = 0;
157#else
158#ifdef CSH
159 rschar = 0;
160#else
161 rschar = '\n';
162#endif /* !CSH */
163#endif /* !MSDOS */
164 result = do_readline();
165 LEAVE;
166 return result;
167}
168
169PP(pp_indread)
170{
171 last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*stack_sp--)), na), TRUE,SVt_PVIO);
172 return do_readline();
173}
174
175PP(pp_rcatline)
176{
177 last_in_gv = cGVOP->op_gv;
178 return do_readline();
179}
180
181PP(pp_warn)
182{
183 dSP; dMARK;
184 char *tmps;
185 if (SP - MARK != 1) {
186 dTARGET;
187 do_join(TARG, &sv_no, MARK, SP);
188 tmps = SvPV(TARG, na);
189 SP = MARK + 1;
190 }
191 else {
192 tmps = SvPV(TOPs, na);
193 }
194 if (!tmps || !*tmps) {
4633a7c4 195 SV *error = GvSV(errgv);
a0d0e21e
LW		 196 (void)SvUPGRADE(error, SVt_PV);
197 if (SvPOK(error) && SvCUR(error))
198 sv_catpv(error, "\t...caught");
199 tmps = SvPV(error, na);
200 }
201 if (!tmps || !*tmps)
202 tmps = "Warning: something's wrong";
203 warn("%s", tmps);
204 RETSETYES;
205}
206
207PP(pp_die)
208{
209 dSP; dMARK;
210 char *tmps;
211 if (SP - MARK != 1) {
212 dTARGET;
213 do_join(TARG, &sv_no, MARK, SP);
214 tmps = SvPV(TARG, na);
215 SP = MARK + 1;
216 }
217 else {
218 tmps = SvPV(TOPs, na);
219 }
220 if (!tmps || !*tmps) {
4633a7c4 221 SV *error = GvSV(errgv);
a0d0e21e
LW		 222 (void)SvUPGRADE(error, SVt_PV);
223 if (SvPOK(error) && SvCUR(error))
224 sv_catpv(error, "\t...propagated");
225 tmps = SvPV(error, na);
226 }
227 if (!tmps || !*tmps)
228 tmps = "Died";
229 DIE("%s", tmps);
230}
231
232/* I/O. */
233
234PP(pp_open)
235{
236 dSP; dTARGET;
237 GV *gv;
238 SV *sv;
239 char *tmps;
240 STRLEN len;
241
242 if (MAXARG > 1)
243 sv = POPs;
4633a7c4 244 else if (SvTYPE(TOPs) == SVt_PVGV)
a0d0e21e 245 sv = GvSV(TOPs);
4633a7c4
LW		 246 else
247 DIE(no_usym, "filehandle");
a0d0e21e
LW		 248 gv = (GV*)POPs;
249 tmps = SvPV(sv, len);
250 if (do_open(gv, tmps, len,Nullfp)) {
251 IoLINES(GvIOp(gv)) = 0;
252 PUSHi( (I32)forkprocess );
253 }
254 else if (forkprocess == 0) /* we are a new child */
255 PUSHi(0);
256 else
257 RETPUSHUNDEF;
258 RETURN;
259}
260
261PP(pp_close)
262{
263 dSP;
264 GV *gv;
265
266 if (MAXARG == 0)
267 gv = defoutgv;
268 else
269 gv = (GV*)POPs;
270 EXTEND(SP, 1);
271 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
272 RETURN;
273}
274
275PP(pp_pipe_op)
276{
277 dSP;
278#ifdef HAS_PIPE
279 GV *rgv;
280 GV *wgv;
281 register IO *rstio;
282 register IO *wstio;
283 int fd[2];
284
285 wgv = (GV*)POPs;
286 rgv = (GV*)POPs;
287
288 if (!rgv || !wgv)
289 goto badexit;
290
4633a7c4
LW		 291 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
292 DIE(no_usym, "filehandle");
a0d0e21e
LW		 293 rstio = GvIOn(rgv);
294 wstio = GvIOn(wgv);
295
296 if (IoIFP(rstio))
297 do_close(rgv, FALSE);
298 if (IoIFP(wstio))
299 do_close(wgv, FALSE);
300
301 if (pipe(fd) < 0)
302 goto badexit;
303
304 IoIFP(rstio) = fdopen(fd[0], "r");
305 IoOFP(wstio) = fdopen(fd[1], "w");
306 IoIFP(wstio) = IoOFP(wstio);
307 IoTYPE(rstio) = '<';
308 IoTYPE(wstio) = '>';
309
310 if (!IoIFP(rstio) || !IoOFP(wstio)) {
311 if (IoIFP(rstio)) fclose(IoIFP(rstio));
312 else close(fd[0]);
313 if (IoOFP(wstio)) fclose(IoOFP(wstio));
314 else close(fd[1]);
315 goto badexit;
316 }
317
318 RETPUSHYES;
319
320badexit:
321 RETPUSHUNDEF;
322#else
323 DIE(no_func, "pipe");
324#endif
325}
326
327PP(pp_fileno)
328{
329 dSP; dTARGET;
330 GV *gv;
331 IO *io;
332 FILE *fp;
333 if (MAXARG < 1)
334 RETPUSHUNDEF;
335 gv = (GV*)POPs;
336 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
337 RETPUSHUNDEF;
338 PUSHi(fileno(fp));
339 RETURN;
340}
341
342PP(pp_umask)
343{
344 dSP; dTARGET;
345 int anum;
346
347#ifdef HAS_UMASK
348 if (MAXARG < 1) {
349 anum = umask(0);
350 (void)umask(anum);
351 }
352 else
353 anum = umask(POPi);
354 TAINT_PROPER("umask");
355 XPUSHi(anum);
356#else
357 DIE(no_func, "Unsupported function umask");
358#endif
359 RETURN;
360}
361
362PP(pp_binmode)
363{
364 dSP;
365 GV *gv;
366 IO *io;
367 FILE *fp;
368
369 if (MAXARG < 1)
370 RETPUSHUNDEF;
371
372 gv = (GV*)POPs;
373
374 EXTEND(SP, 1);
375 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
376 RETSETUNDEF;
377
378#ifdef DOSISH
379#ifdef atarist
380 if (!fflush(fp) && (fp->_flag |= _IOBIN))
381 RETPUSHYES;
382 else
383 RETPUSHUNDEF;
384#else
385 if (setmode(fileno(fp), OP_BINARY) != -1)
386 RETPUSHYES;
387 else
388 RETPUSHUNDEF;
389#endif
390#else
391 RETPUSHYES;
392#endif
393}
394
395PP(pp_tie)
396{
397 dSP;
398 SV *varsv;
399 HV* stash;
400 GV *gv;
401 BINOP myop;
402 SV *sv;
403 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
404 I32 markoff = mark - stack_base - 1;
405 char *methname;
406
407 varsv = mark[0];
408 if (SvTYPE(varsv) == SVt_PVHV)
409 methname = "TIEHASH";
410 else if (SvTYPE(varsv) == SVt_PVAV)
411 methname = "TIEARRAY";
412 else if (SvTYPE(varsv) == SVt_PVGV)
413 methname = "TIEHANDLE";
414 else
415 methname = "TIESCALAR";
416
417 stash = gv_stashsv(mark[1], FALSE);
418 if (!stash || !(gv = gv_fetchmethod(stash, methname)) || !GvCV(gv))
419 DIE("Can't locate object method \"%s\" via package \"%s\"",
420 methname, SvPV(mark[1],na));
421
422 Zero(&myop, 1, BINOP);
423 myop.op_last = (OP *) &myop;
424 myop.op_next = Nullop;
425 myop.op_flags = OPf_KNOW|OPf_STACKED;
426
427 ENTER;
428 SAVESPTR(op);
429 op = (OP *) &myop;
430
431 XPUSHs(gv);
432 PUTBACK;
433
434 if (op = pp_entersub())
435 run();
436 SPAGAIN;
437
438 sv = TOPs;
439 if (sv_isobject(sv)) {
440 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
441 sv_unmagic(varsv, 'P');
442 sv_magic(varsv, sv, 'P', Nullch, 0);
443 }
444 else {
445 sv_unmagic(varsv, 'q');
446 sv_magic(varsv, sv, 'q', Nullch, 0);
447 }
448 }
449 LEAVE;
450 SP = stack_base + markoff;
451 PUSHs(sv);
452 RETURN;
453}
454
455PP(pp_untie)
456{
457 dSP;
458 if (SvTYPE(TOPs) == SVt_PVHV || SvTYPE(TOPs) == SVt_PVAV)
459 sv_unmagic(TOPs, 'P');
460 else
461 sv_unmagic(TOPs, 'q');
462 RETSETYES;
463}
464
465PP(pp_dbmopen)
466{
467 dSP;
468 HV *hv;
469 dPOPPOPssrl;
470 HV* stash;
471 GV *gv;
472 BINOP myop;
473 SV *sv;
474
475 hv = (HV*)POPs;
476
477 sv = sv_mortalcopy(&sv_no);
478 sv_setpv(sv, "AnyDBM_File");
479 stash = gv_stashsv(sv, FALSE);
480 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv)) {
481 PUTBACK;
4633a7c4 482 perl_require_pv("AnyDBM_File.pm");
a0d0e21e
LW		 483 SPAGAIN;
484 if (!(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv))
485 DIE("No dbm on this machine");
486 }
487
488 Zero(&myop, 1, BINOP);
489 myop.op_last = (OP *) &myop;
490 myop.op_next = Nullop;
491 myop.op_flags = OPf_KNOW|OPf_STACKED;
492
493 ENTER;
494 SAVESPTR(op);
495 op = (OP *) &myop;
496 PUTBACK;
497 pp_pushmark();
498
499 EXTEND(sp, 5);
500 PUSHs(sv);
501 PUSHs(left);
502 if (SvIV(right))
503 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
504 else
505 PUSHs(sv_2mortal(newSViv(O_RDWR)));
506 PUSHs(right);
507 PUSHs(gv);
508 PUTBACK;
509
510 if (op = pp_entersub())
511 run();
512 SPAGAIN;
513
514 if (!sv_isobject(TOPs)) {
515 sp--;
516 op = (OP *) &myop;
517 PUTBACK;
518 pp_pushmark();
519
520 PUSHs(sv);
521 PUSHs(left);
522 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
523 PUSHs(right);
524 PUSHs(gv);
525 PUTBACK;
526
527 if (op = pp_entersub())
528 run();
529 SPAGAIN;
530 }
531
532 if (sv_isobject(TOPs))
533 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
534 LEAVE;
535 RETURN;
536}
537
538PP(pp_dbmclose)
539{
540 return pp_untie(ARGS);
541}
542
543PP(pp_sselect)
544{
545 dSP; dTARGET;
546#ifdef HAS_SELECT
547 register I32 i;
548 register I32 j;
549 register char *s;
550 register SV *sv;
551 double value;
552 I32 maxlen = 0;
553 I32 nfound;
554 struct timeval timebuf;
555 struct timeval *tbuf = &timebuf;
556 I32 growsize;
557 char *fd_sets[4];
558#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
559 I32 masksize;
560 I32 offset;
561 I32 k;
562
563# if BYTEORDER & 0xf0000
564# define ORDERBYTE (0x88888888 - BYTEORDER)
565# else
566# define ORDERBYTE (0x4444 - BYTEORDER)
567# endif
568
569#endif
570
571 SP -= 4;
572 for (i = 1; i <= 3; i++) {
573 if (!SvPOK(SP[i]))
574 continue;
575 j = SvCUR(SP[i]);
576 if (maxlen < j)
577 maxlen = j;
578 }
579
580#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4633a7c4
LW		 581#ifdef __linux__
582 growsize = sizeof(fd_set);
583#else
a0d0e21e 584 growsize = maxlen; /* little endians can use vecs directly */
4633a7c4 585#endif
a0d0e21e
LW		 586#else
587#ifdef NFDBITS
588
589#ifndef NBBY
590#define NBBY 8
591#endif
592
593 masksize = NFDBITS / NBBY;
594#else
595 masksize = sizeof(long); /* documented int, everyone seems to use long */
596#endif
597 growsize = maxlen + (masksize - (maxlen % masksize));
598 Zero(&fd_sets[0], 4, char*);
599#endif
600
601 sv = SP[4];
602 if (SvOK(sv)) {
603 value = SvNV(sv);
604 if (value < 0.0)
605 value = 0.0;
606 timebuf.tv_sec = (long)value;
607 value -= (double)timebuf.tv_sec;
608 timebuf.tv_usec = (long)(value * 1000000.0);
609 }
610 else
611 tbuf = Null(struct timeval*);
612
613 for (i = 1; i <= 3; i++) {
614 sv = SP[i];
615 if (!SvOK(sv)) {
616 fd_sets[i] = 0;
617 continue;
618 }
619 else if (!SvPOK(sv))
620 SvPV_force(sv,na); /* force string conversion */
621 j = SvLEN(sv);
622 if (j < growsize) {
623 Sv_Grow(sv, growsize);
624 s = SvPVX(sv) + j;
625 while (++j <= growsize) {
626 *s++ = '\0';
627 }
628 }
629#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
630 s = SvPVX(sv);
631 New(403, fd_sets[i], growsize, char);
632 for (offset = 0; offset < growsize; offset += masksize) {
633 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
634 fd_sets[i][j+offset] = s[(k % masksize) + offset];
635 }
636#else
637 fd_sets[i] = SvPVX(sv);
638#endif
639 }
640
641 nfound = select(
642 maxlen * 8,
643 (Select_fd_set_t) fd_sets[1],
644 (Select_fd_set_t) fd_sets[2],
645 (Select_fd_set_t) fd_sets[3],
646 tbuf);
647 for (i = 1; i <= 3; i++) {
648 if (fd_sets[i]) {
649 sv = SP[i];
650#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
651 s = SvPVX(sv);
652 for (offset = 0; offset < growsize; offset += masksize) {
653 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
654 s[(k % masksize) + offset] = fd_sets[i][j+offset];
655 }
656 Safefree(fd_sets[i]);
657#endif
658 SvSETMAGIC(sv);
659 }
660 }
661
662 PUSHi(nfound);
663 if (GIMME == G_ARRAY && tbuf) {
664 value = (double)(timebuf.tv_sec) +
665 (double)(timebuf.tv_usec) / 1000000.0;
666 PUSHs(sv = sv_mortalcopy(&sv_no));
667 sv_setnv(sv, value);
668 }
669 RETURN;
670#else
671 DIE("select not implemented");
672#endif
673}
674
4633a7c4
LW		 675void
676setdefout(gv)
677GV *gv;
678{
679 if (gv)
680 (void)SvREFCNT_inc(gv);
681 if (defoutgv)
682 SvREFCNT_dec(defoutgv);
683 defoutgv = gv;
684}
685
a0d0e21e
LW		 686PP(pp_select)
687{
688 dSP; dTARGET;
4633a7c4
LW		 689 GV *newdefout, *egv;
690 HV *hv;
691
692 newdefout = (op->op_private > 0) ? ((GV *) POPs) : NULL;
693
694 egv = GvEGV(defoutgv);
695 if (!egv)
696 egv = defoutgv;
697 hv = GvSTASH(egv);
698 if (! hv)
699 XPUSHs(&sv_undef);
700 else {
701 GV **gvp = hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
702 if (gvp && *gvp == egv)
703 gv_efullname(TARG, defoutgv);
704 else
705 sv_setsv(TARG, sv_2mortal(newRV(egv)));
706 XPUSHTARG;
707 }
708
709 if (newdefout) {
710 if (!GvIO(newdefout))
711 gv_IOadd(newdefout);
712 setdefout(newdefout);
713 }
714
a0d0e21e
LW		 715 RETURN;
716}
717
718PP(pp_getc)
719{
720 dSP; dTARGET;
721 GV *gv;
722
723 if (MAXARG <= 0)
724 gv = stdingv;
725 else
726 gv = (GV*)POPs;
727 if (!gv)
728 gv = argvgv;
729 if (!gv || do_eof(gv)) /* make sure we have fp with something */
730 RETPUSHUNDEF;
731 TAINT_IF(1);
732 sv_setpv(TARG, " ");
733 *SvPVX(TARG) = getc(IoIFP(GvIOp(gv))); /* should never be EOF */
734 PUSHTARG;
735 RETURN;
736}
737
738PP(pp_read)
739{
740 return pp_sysread(ARGS);
741}
742
743static OP *
744doform(cv,gv,retop)
745CV *cv;
746GV *gv;
747OP *retop;
748{
749 register CONTEXT *cx;
750 I32 gimme = GIMME;
751 AV* padlist = CvPADLIST(cv);
752 SV** svp = AvARRAY(padlist);
753
754 ENTER;
755 SAVETMPS;
756
757 push_return(retop);
758 PUSHBLOCK(cx, CXt_SUB, stack_sp);
759 PUSHFORMAT(cx);
760 SAVESPTR(curpad);
761 curpad = AvARRAY((AV*)svp[1]);
762
4633a7c4 763 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 764 return CvSTART(cv);
765}
766
767PP(pp_enterwrite)
768{
769 dSP;
770 register GV *gv;
771 register IO *io;
772 GV *fgv;
773 CV *cv;
774
775 if (MAXARG == 0)
776 gv = defoutgv;
777 else {
778 gv = (GV*)POPs;
779 if (!gv)
780 gv = defoutgv;
781 }
782 EXTEND(SP, 1);
783 io = GvIO(gv);
784 if (!io) {
785 RETPUSHNO;
786 }
787 if (IoFMT_GV(io))
788 fgv = IoFMT_GV(io);
789 else
790 fgv = gv;
791
792 cv = GvFORM(fgv);
793
794 if (!cv) {
795 if (fgv) {
748a9306
LW		 796 SV *tmpsv = sv_newmortal();
797 gv_efullname(tmpsv, gv);
798 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
a0d0e21e
LW		 799 }
800 DIE("Not a format reference");
801 }
748a9306 802 IoFLAGS(io) &= ~IOf_DIDTOP;
a0d0e21e
LW		 803
804 return doform(cv,gv,op->op_next);
805}
806
807PP(pp_leavewrite)
808{
809 dSP;
810 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
811 register IO *io = GvIOp(gv);
812 FILE *ofp = IoOFP(io);
813 FILE *fp;
814 SV **newsp;
815 I32 gimme;
816 register CONTEXT *cx;
817
818 DEBUG_f(fprintf(stderr,"left=%ld, todo=%ld\n",
819 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
820 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
821 formtarget != toptarget)
822 {
4633a7c4
LW		 823 GV *fgv;
824 CV *cv;
a0d0e21e
LW		 825 if (!IoTOP_GV(io)) {
826 GV *topgv;
827 char tmpbuf[256];
828
829 if (!IoTOP_NAME(io)) {
830 if (!IoFMT_NAME(io))
831 IoFMT_NAME(io) = savepv(GvNAME(gv));
832 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
833 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
748a9306 834 if ((topgv && GvFORM(topgv)) ||
a0d0e21e
LW		 835 !gv_fetchpv("top",FALSE,SVt_PVFM))
836 IoTOP_NAME(io) = savepv(tmpbuf);
837 else
838 IoTOP_NAME(io) = savepv("top");
839 }
840 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
841 if (!topgv || !GvFORM(topgv)) {
842 IoLINES_LEFT(io) = 100000000;
843 goto forget_top;
844 }
845 IoTOP_GV(io) = topgv;
846 }
748a9306
LW		 847 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
848 I32 lines = IoLINES_LEFT(io);
849 char *s = SvPVX(formtarget);
8e07c86e
AD		 850 if (lines <= 0) /* Yow, header didn't even fit!!! */
851 goto forget_top;
748a9306
LW		 852 while (lines-- > 0) {
853 s = strchr(s, '\n');
854 if (!s)
855 break;
856 s++;
857 }
858 if (s) {
859 fwrite1(SvPVX(formtarget), s - SvPVX(formtarget), 1, ofp);
860 sv_chop(formtarget, s);
861 FmLINES(formtarget) -= IoLINES_LEFT(io);
862 }
863 }
a0d0e21e
LW		 864 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
865 fwrite1(SvPVX(formfeed), SvCUR(formfeed), 1, ofp);
866 IoLINES_LEFT(io) = IoPAGE_LEN(io);
867 IoPAGE(io)++;
868 formtarget = toptarget;
748a9306 869 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 870 fgv = IoTOP_GV(io);
871 if (!fgv)
872 DIE("bad top format reference");
873 cv = GvFORM(fgv);
874 if (!cv) {
875 SV *tmpsv = sv_newmortal();
876 gv_efullname(tmpsv, fgv);
877 DIE("Undefined top format \"%s\" called",SvPVX(tmpsv));
878 }
879 return doform(cv,gv,op);
a0d0e21e
LW		 880 }
881
882 forget_top:
883 POPBLOCK(cx,curpm);
884 POPFORMAT(cx);
885 LEAVE;
886
887 fp = IoOFP(io);
888 if (!fp) {
889 if (dowarn) {
890 if (IoIFP(io))
891 warn("Filehandle only opened for input");
892 else
893 warn("Write on closed filehandle");
894 }
895 PUSHs(&sv_no);
896 }
897 else {
898 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
899 if (dowarn)
900 warn("page overflow");
901 }
902 if (!fwrite1(SvPVX(formtarget), 1, SvCUR(formtarget), ofp) ||
903 ferror(fp))
904 PUSHs(&sv_no);
905 else {
906 FmLINES(formtarget) = 0;
907 SvCUR_set(formtarget, 0);
748a9306 908 *SvEND(formtarget) = '\0';
a0d0e21e
LW		 909 if (IoFLAGS(io) & IOf_FLUSH)
910 (void)fflush(fp);
911 PUSHs(&sv_yes);
912 }
913 }
914 formtarget = bodytarget;
915 PUTBACK;
916 return pop_return();
917}
918
919PP(pp_prtf)
920{
921 dSP; dMARK; dORIGMARK;
922 GV *gv;
923 IO *io;
924 FILE *fp;
925 SV *sv = NEWSV(0,0);
926
927 if (op->op_flags & OPf_STACKED)
928 gv = (GV*)*++MARK;
929 else
930 gv = defoutgv;
931 if (!(io = GvIO(gv))) {
748a9306
LW		 932 if (dowarn) {
933 gv_fullname(sv,gv);
934 warn("Filehandle %s never opened", SvPV(sv,na));
935 }
936 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 937 goto just_say_no;
938 }
939 else if (!(fp = IoOFP(io))) {
940 if (dowarn) {
748a9306 941 gv_fullname(sv,gv);
a0d0e21e 942 if (IoIFP(io))
748a9306 943 warn("Filehandle %s opened only for input", SvPV(sv,na));
a0d0e21e 944 else
748a9306 945 warn("printf on closed filehandle %s", SvPV(sv,na));
a0d0e21e 946 }
748a9306 947 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 948 goto just_say_no;
949 }
950 else {
951 do_sprintf(sv, SP - MARK, MARK + 1);
952 if (!do_print(sv, fp))
953 goto just_say_no;
954
955 if (IoFLAGS(io) & IOf_FLUSH)
956 if (fflush(fp) == EOF)
957 goto just_say_no;
958 }
959 SvREFCNT_dec(sv);
960 SP = ORIGMARK;
961 PUSHs(&sv_yes);
962 RETURN;
963
964 just_say_no:
965 SvREFCNT_dec(sv);
966 SP = ORIGMARK;
967 PUSHs(&sv_undef);
968 RETURN;
969}
970
971PP(pp_sysread)
972{
973 dSP; dMARK; dORIGMARK; dTARGET;
974 int offset;
975 GV *gv;
976 IO *io;
977 char *buffer;
978 int length;
979 int bufsize;
748a9306 980 SV *bufsv;
a0d0e21e
LW		 981 STRLEN blen;
982
983 gv = (GV*)*++MARK;
984 if (!gv)
985 goto say_undef;
748a9306
LW		 986 bufsv = *++MARK;
987 buffer = SvPV_force(bufsv, blen);
a0d0e21e
LW		 988 length = SvIVx(*++MARK);
989 if (length < 0)
990 DIE("Negative length");
748a9306 991 SETERRNO(0,0);
a0d0e21e
LW		 992 if (MARK < SP)
993 offset = SvIVx(*++MARK);
994 else
995 offset = 0;
996 io = GvIO(gv);
997 if (!io || !IoIFP(io))
998 goto say_undef;
999#ifdef HAS_SOCKET
1000 if (op->op_type == OP_RECV) {
1001 bufsize = sizeof buf;
748a9306 1002 buffer = SvGROW(bufsv, length+1);
a0d0e21e
LW		 1003 length = recvfrom(fileno(IoIFP(io)), buffer, length, offset,
1004 (struct sockaddr *)buf, &bufsize);
1005 if (length < 0)
1006 RETPUSHUNDEF;
748a9306
LW		 1007 SvCUR_set(bufsv, length);
1008 *SvEND(bufsv) = '\0';
1009 (void)SvPOK_only(bufsv);
1010 SvSETMAGIC(bufsv);
a0d0e21e 1011 if (tainting)
748a9306 1012 sv_magic(bufsv, Nullsv, 't', Nullch, 0);
a0d0e21e
LW		 1013 SP = ORIGMARK;
1014 sv_setpvn(TARG, buf, bufsize);
1015 PUSHs(TARG);
1016 RETURN;
1017 }
1018#else
1019 if (op->op_type == OP_RECV)
1020 DIE(no_sock_func, "recv");
1021#endif
748a9306 1022 buffer = SvGROW(bufsv, length+offset+1);
a0d0e21e
LW		 1023 if (op->op_type == OP_SYSREAD) {
1024 length = read(fileno(IoIFP(io)), buffer+offset, length);
1025 }
1026 else
1027#ifdef HAS_SOCKET__bad_code_maybe
1028 if (IoTYPE(io) == 's') {
1029 bufsize = sizeof buf;
1030 length = recvfrom(fileno(IoIFP(io)), buffer+offset, length, 0,
1031 (struct sockaddr *)buf, &bufsize);
1032 }
1033 else
1034#endif
1035 length = fread(buffer+offset, 1, length, IoIFP(io));
1036 if (length < 0)
1037 goto say_undef;
748a9306
LW		 1038 SvCUR_set(bufsv, length+offset);
1039 *SvEND(bufsv) = '\0';
1040 (void)SvPOK_only(bufsv);
1041 SvSETMAGIC(bufsv);
a0d0e21e 1042 if (tainting)
748a9306 1043 sv_magic(bufsv, Nullsv, 't', Nullch, 0);
a0d0e21e
LW		 1044 SP = ORIGMARK;
1045 PUSHi(length);
1046 RETURN;
1047
1048 say_undef:
1049 SP = ORIGMARK;
1050 RETPUSHUNDEF;
1051}
1052
1053PP(pp_syswrite)
1054{
1055 return pp_send(ARGS);
1056}
1057
1058PP(pp_send)
1059{
1060 dSP; dMARK; dORIGMARK; dTARGET;
1061 GV *gv;
1062 IO *io;
1063 int offset;
748a9306 1064 SV *bufsv;
a0d0e21e
LW		 1065 char *buffer;
1066 int length;
1067 STRLEN blen;
1068
1069 gv = (GV*)*++MARK;
1070 if (!gv)
1071 goto say_undef;
748a9306
LW		 1072 bufsv = *++MARK;
1073 buffer = SvPV(bufsv, blen);
a0d0e21e
LW		 1074 length = SvIVx(*++MARK);
1075 if (length < 0)
1076 DIE("Negative length");
748a9306 1077 SETERRNO(0,0);
a0d0e21e
LW		 1078 io = GvIO(gv);
1079 if (!io || !IoIFP(io)) {
1080 length = -1;
1081 if (dowarn) {
1082 if (op->op_type == OP_SYSWRITE)
1083 warn("Syswrite on closed filehandle");
1084 else
1085 warn("Send on closed socket");
1086 }
1087 }
1088 else if (op->op_type == OP_SYSWRITE) {
1089 if (MARK < SP)
1090 offset = SvIVx(*++MARK);
1091 else
1092 offset = 0;
1093 if (length > blen - offset)
1094 length = blen - offset;
1095 length = write(fileno(IoIFP(io)), buffer+offset, length);
1096 }
1097#ifdef HAS_SOCKET
1098 else if (SP > MARK) {
1099 char *sockbuf;
1100 STRLEN mlen;
1101 sockbuf = SvPVx(*++MARK, mlen);
1102 length = sendto(fileno(IoIFP(io)), buffer, blen, length,
1103 (struct sockaddr *)sockbuf, mlen);
1104 }
1105 else
1106 length = send(fileno(IoIFP(io)), buffer, blen, length);
1107#else
1108 else
1109 DIE(no_sock_func, "send");
1110#endif
1111 if (length < 0)
1112 goto say_undef;
1113 SP = ORIGMARK;
1114 PUSHi(length);
1115 RETURN;
1116
1117 say_undef:
1118 SP = ORIGMARK;
1119 RETPUSHUNDEF;
1120}
1121
1122PP(pp_recv)
1123{
1124 return pp_sysread(ARGS);
1125}
1126
1127PP(pp_eof)
1128{
1129 dSP;
1130 GV *gv;
1131
1132 if (MAXARG <= 0)
1133 gv = last_in_gv;
1134 else
1135 gv = last_in_gv = (GV*)POPs;
1136 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1137 RETURN;
1138}
1139
1140PP(pp_tell)
1141{
1142 dSP; dTARGET;
1143 GV *gv;
1144
1145 if (MAXARG <= 0)
1146 gv = last_in_gv;
1147 else
1148 gv = last_in_gv = (GV*)POPs;
1149 PUSHi( do_tell(gv) );
1150 RETURN;
1151}
1152
1153PP(pp_seek)
1154{
1155 dSP;
1156 GV *gv;
1157 int whence = POPi;
1158 long offset = POPl;
1159
1160 gv = last_in_gv = (GV*)POPs;
1161 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1162 RETURN;
1163}
1164
1165PP(pp_truncate)
1166{
1167 dSP;
1168 Off_t len = (Off_t)POPn;
1169 int result = 1;
1170 GV *tmpgv;
1171
748a9306 1172 SETERRNO(0,0);
5d94fbed 1173#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
a0d0e21e
LW		 1174#ifdef HAS_TRUNCATE
1175 if (op->op_flags & OPf_SPECIAL) {
1176 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1177 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1178 ftruncate(fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1179 result = 0;
1180 }
1181 else if (truncate(POPp, len) < 0)
1182 result = 0;
1183#else
1184 if (op->op_flags & OPf_SPECIAL) {
1185 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1186 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1187 chsize(fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1188 result = 0;
1189 }
1190 else {
1191 int tmpfd;
1192
1193 if ((tmpfd = open(POPp, 0)) < 0)
1194 result = 0;
1195 else {
1196 if (chsize(tmpfd, len) < 0)
1197 result = 0;
1198 close(tmpfd);
1199 }
1200 }
1201#endif
1202
1203 if (result)
1204 RETPUSHYES;
1205 if (!errno)
748a9306 1206 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1207 RETPUSHUNDEF;
1208#else
1209 DIE("truncate not implemented");
1210#endif
1211}
1212
1213PP(pp_fcntl)
1214{
1215 return pp_ioctl(ARGS);
1216}
1217
1218PP(pp_ioctl)
1219{
1220 dSP; dTARGET;
748a9306 1221 SV *argsv = POPs;
a0d0e21e
LW		 1222 unsigned int func = U_I(POPn);
1223 int optype = op->op_type;
1224 char *s;
1225 int retval;
1226 GV *gv = (GV*)POPs;
1227 IO *io = GvIOn(gv);
1228
748a9306
LW		 1229 if (!io || !argsv || !IoIFP(io)) {
1230 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 1231 RETPUSHUNDEF;
1232 }
1233
748a9306 1234 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 1235 STRLEN len;
748a9306 1236 s = SvPV_force(argsv, len);
a0d0e21e
LW		 1237 retval = IOCPARM_LEN(func);
1238 if (len < retval) {
748a9306
LW		 1239 s = Sv_Grow(argsv, retval+1);
1240 SvCUR_set(argsv, retval);
a0d0e21e
LW		 1241 }
1242
748a9306 1243 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 1244 }
1245 else {
748a9306 1246 retval = SvIV(argsv);
a0d0e21e
LW		 1247#ifdef DOSISH
1248 s = (char*)(long)retval; /* ouch */
1249#else
1250 s = (char*)retval; /* ouch */
1251#endif
1252 }
1253
1254 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1255
1256 if (optype == OP_IOCTL)
1257#ifdef HAS_IOCTL
1258 retval = ioctl(fileno(IoIFP(io)), func, s);
1259#else
1260 DIE("ioctl is not implemented");
1261#endif
1262 else
4633a7c4 1263#if defined(DOSISH) && !defined(OS2)
a0d0e21e
LW		 1264 DIE("fcntl is not implemented");
1265#else
1266# ifdef HAS_FCNTL
4633a7c4
LW		 1267# if defined(OS2) && defined(__EMX__)
1268 retval = fcntl(fileno(IoIFP(io)), func, (int)s);
1269# else
a0d0e21e 1270 retval = fcntl(fileno(IoIFP(io)), func, s);
4633a7c4 1271# endif
a0d0e21e
LW		 1272# else
1273 DIE("fcntl is not implemented");
1274# endif
1275#endif
1276
748a9306
LW		 1277 if (SvPOK(argsv)) {
1278 if (s[SvCUR(argsv)] != 17)
a0d0e21e
LW		 1279 DIE("Possible memory corruption: %s overflowed 3rd argument",
1280 op_name[optype]);
748a9306
LW		 1281 s[SvCUR(argsv)] = 0; /* put our null back */
1282 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 1283 }
1284
1285 if (retval == -1)
1286 RETPUSHUNDEF;
1287 if (retval != 0) {
1288 PUSHi(retval);
1289 }
1290 else {
1291 PUSHp("0 but true", 10);
1292 }
1293 RETURN;
1294}
1295
1296PP(pp_flock)
1297{
1298 dSP; dTARGET;
1299 I32 value;
1300 int argtype;
1301 GV *gv;
1302 FILE *fp;
16d20bd9
AD		 1303
1304#if !defined(HAS_FLOCK) && defined(HAS_LOCKF)
1305# define flock lockf_emulate_flock
1306#endif
1307
1308#if defined(HAS_FLOCK) || defined(flock)
a0d0e21e
LW		 1309 argtype = POPi;
1310 if (MAXARG <= 0)
1311 gv = last_in_gv;
1312 else
1313 gv = (GV*)POPs;
1314 if (gv && GvIO(gv))
1315 fp = IoIFP(GvIOp(gv));
1316 else
1317 fp = Nullfp;
1318 if (fp) {
1319 value = (I32)(flock(fileno(fp), argtype) >= 0);
1320 }
1321 else
1322 value = 0;
1323 PUSHi(value);
1324 RETURN;
1325#else
a0d0e21e 1326 DIE(no_func, "flock()");
a0d0e21e
LW		 1327#endif
1328}
1329
1330/* Sockets. */
1331
1332PP(pp_socket)
1333{
1334 dSP;
1335#ifdef HAS_SOCKET
1336 GV *gv;
1337 register IO *io;
1338 int protocol = POPi;
1339 int type = POPi;
1340 int domain = POPi;
1341 int fd;
1342
1343 gv = (GV*)POPs;
1344
1345 if (!gv) {
748a9306 1346 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 1347 RETPUSHUNDEF;
1348 }
1349
1350 io = GvIOn(gv);
1351 if (IoIFP(io))
1352 do_close(gv, FALSE);
1353
1354 TAINT_PROPER("socket");
1355 fd = socket(domain, type, protocol);
1356 if (fd < 0)
1357 RETPUSHUNDEF;
1358 IoIFP(io) = fdopen(fd, "r"); /* stdio gets confused about sockets */
1359 IoOFP(io) = fdopen(fd, "w");
1360 IoTYPE(io) = 's';
1361 if (!IoIFP(io) || !IoOFP(io)) {
1362 if (IoIFP(io)) fclose(IoIFP(io));
1363 if (IoOFP(io)) fclose(IoOFP(io));
1364 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1365 RETPUSHUNDEF;
1366 }
1367
1368 RETPUSHYES;
1369#else
1370 DIE(no_sock_func, "socket");
1371#endif
1372}
1373
1374PP(pp_sockpair)
1375{
1376 dSP;
1377#ifdef HAS_SOCKETPAIR
1378 GV *gv1;
1379 GV *gv2;
1380 register IO *io1;
1381 register IO *io2;
1382 int protocol = POPi;
1383 int type = POPi;
1384 int domain = POPi;
1385 int fd[2];
1386
1387 gv2 = (GV*)POPs;
1388 gv1 = (GV*)POPs;
1389 if (!gv1 || !gv2)
1390 RETPUSHUNDEF;
1391
1392 io1 = GvIOn(gv1);
1393 io2 = GvIOn(gv2);
1394 if (IoIFP(io1))
1395 do_close(gv1, FALSE);
1396 if (IoIFP(io2))
1397 do_close(gv2, FALSE);
1398
1399 TAINT_PROPER("socketpair");
1400 if (socketpair(domain, type, protocol, fd) < 0)
1401 RETPUSHUNDEF;
1402 IoIFP(io1) = fdopen(fd[0], "r");
1403 IoOFP(io1) = fdopen(fd[0], "w");
1404 IoTYPE(io1) = 's';
1405 IoIFP(io2) = fdopen(fd[1], "r");
1406 IoOFP(io2) = fdopen(fd[1], "w");
1407 IoTYPE(io2) = 's';
1408 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1409 if (IoIFP(io1)) fclose(IoIFP(io1));
1410 if (IoOFP(io1)) fclose(IoOFP(io1));
1411 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1412 if (IoIFP(io2)) fclose(IoIFP(io2));
1413 if (IoOFP(io2)) fclose(IoOFP(io2));
1414 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1415 RETPUSHUNDEF;
1416 }
1417
1418 RETPUSHYES;
1419#else
1420 DIE(no_sock_func, "socketpair");
1421#endif
1422}
1423
1424PP(pp_bind)
1425{
1426 dSP;
1427#ifdef HAS_SOCKET
748a9306 1428 SV *addrsv = POPs;
a0d0e21e
LW		 1429 char *addr;
1430 GV *gv = (GV*)POPs;
1431 register IO *io = GvIOn(gv);
1432 STRLEN len;
1433
1434 if (!io || !IoIFP(io))
1435 goto nuts;
1436
748a9306 1437 addr = SvPV(addrsv, len);
a0d0e21e
LW		 1438 TAINT_PROPER("bind");
1439 if (bind(fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1440 RETPUSHYES;
1441 else
1442 RETPUSHUNDEF;
1443
1444nuts:
1445 if (dowarn)
1446 warn("bind() on closed fd");
748a9306 1447 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1448 RETPUSHUNDEF;
1449#else
1450 DIE(no_sock_func, "bind");
1451#endif
1452}
1453
1454PP(pp_connect)
1455{
1456 dSP;
1457#ifdef HAS_SOCKET
748a9306 1458 SV *addrsv = POPs;
a0d0e21e
LW		 1459 char *addr;
1460 GV *gv = (GV*)POPs;
1461 register IO *io = GvIOn(gv);
1462 STRLEN len;
1463
1464 if (!io || !IoIFP(io))
1465 goto nuts;
1466
748a9306 1467 addr = SvPV(addrsv, len);
a0d0e21e
LW		 1468 TAINT_PROPER("connect");
1469 if (connect(fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1470 RETPUSHYES;
1471 else
1472 RETPUSHUNDEF;
1473
1474nuts:
1475 if (dowarn)
1476 warn("connect() on closed fd");
748a9306 1477 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1478 RETPUSHUNDEF;
1479#else
1480 DIE(no_sock_func, "connect");
1481#endif
1482}
1483
1484PP(pp_listen)
1485{
1486 dSP;
1487#ifdef HAS_SOCKET
1488 int backlog = POPi;
1489 GV *gv = (GV*)POPs;
1490 register IO *io = GvIOn(gv);
1491
1492 if (!io || !IoIFP(io))
1493 goto nuts;
1494
1495 if (listen(fileno(IoIFP(io)), backlog) >= 0)
1496 RETPUSHYES;
1497 else
1498 RETPUSHUNDEF;
1499
1500nuts:
1501 if (dowarn)
1502 warn("listen() on closed fd");
748a9306 1503 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1504 RETPUSHUNDEF;
1505#else
1506 DIE(no_sock_func, "listen");
1507#endif
1508}
1509
1510PP(pp_accept)
1511{
1512 dSP; dTARGET;
1513#ifdef HAS_SOCKET
1514 GV *ngv;
1515 GV *ggv;
1516 register IO *nstio;
1517 register IO *gstio;
4633a7c4 1518 struct sockaddr saddr; /* use a struct to avoid alignment problems */
748a9306 1519 int len = sizeof saddr;
a0d0e21e
LW		 1520 int fd;
1521
1522 ggv = (GV*)POPs;
1523 ngv = (GV*)POPs;
1524
1525 if (!ngv)
1526 goto badexit;
1527 if (!ggv)
1528 goto nuts;
1529
1530 gstio = GvIO(ggv);
1531 if (!gstio || !IoIFP(gstio))
1532 goto nuts;
1533
1534 nstio = GvIOn(ngv);
1535 if (IoIFP(nstio))
1536 do_close(ngv, FALSE);
1537
748a9306 1538 fd = accept(fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 1539 if (fd < 0)
1540 goto badexit;
1541 IoIFP(nstio) = fdopen(fd, "r");
1542 IoOFP(nstio) = fdopen(fd, "w");
1543 IoTYPE(nstio) = 's';
1544 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1545 if (IoIFP(nstio)) fclose(IoIFP(nstio));
1546 if (IoOFP(nstio)) fclose(IoOFP(nstio));
1547 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1548 goto badexit;
1549 }
1550
748a9306 1551 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 1552 RETURN;
1553
1554nuts:
1555 if (dowarn)
1556 warn("accept() on closed fd");
748a9306 1557 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1558
1559badexit:
1560 RETPUSHUNDEF;
1561
1562#else
1563 DIE(no_sock_func, "accept");
1564#endif
1565}
1566
1567PP(pp_shutdown)
1568{
1569 dSP; dTARGET;
1570#ifdef HAS_SOCKET
1571 int how = POPi;
1572 GV *gv = (GV*)POPs;
1573 register IO *io = GvIOn(gv);
1574
1575 if (!io || !IoIFP(io))
1576 goto nuts;
1577
1578 PUSHi( shutdown(fileno(IoIFP(io)), how) >= 0 );
1579 RETURN;
1580
1581nuts:
1582 if (dowarn)
1583 warn("shutdown() on closed fd");
748a9306 1584 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1585 RETPUSHUNDEF;
1586#else
1587 DIE(no_sock_func, "shutdown");
1588#endif
1589}
1590
1591PP(pp_gsockopt)
1592{
1593#ifdef HAS_SOCKET
1594 return pp_ssockopt(ARGS);
1595#else
1596 DIE(no_sock_func, "getsockopt");
1597#endif
1598}
1599
1600PP(pp_ssockopt)
1601{
1602 dSP;
1603#ifdef HAS_SOCKET
1604 int optype = op->op_type;
1605 SV *sv;
1606 int fd;
1607 unsigned int optname;
1608 unsigned int lvl;
1609 GV *gv;
1610 register IO *io;
748a9306 1611 int aint;
a0d0e21e
LW		 1612
1613 if (optype == OP_GSOCKOPT)
1614 sv = sv_2mortal(NEWSV(22, 257));
1615 else
1616 sv = POPs;
1617 optname = (unsigned int) POPi;
1618 lvl = (unsigned int) POPi;
1619
1620 gv = (GV*)POPs;
1621 io = GvIOn(gv);
1622 if (!io || !IoIFP(io))
1623 goto nuts;
1624
1625 fd = fileno(IoIFP(io));
1626 switch (optype) {
1627 case OP_GSOCKOPT:
748a9306 1628 SvGROW(sv, 257);
a0d0e21e 1629 (void)SvPOK_only(sv);
748a9306
LW		 1630 SvCUR_set(sv,256);
1631 *SvEND(sv) ='\0';
1632 aint = SvCUR(sv);
1633 if (getsockopt(fd, lvl, optname, SvPVX(sv), &aint) < 0)
a0d0e21e 1634 goto nuts2;
748a9306
LW		 1635 SvCUR_set(sv,aint);
1636 *SvEND(sv) ='\0';
a0d0e21e
LW		 1637 PUSHs(sv);
1638 break;
1639 case OP_SSOCKOPT: {
a0d0e21e
LW		 1640 STRLEN len = 0;
1641 char *buf = 0;
1642 if (SvPOKp(sv))
1643 buf = SvPV(sv, len);
1644 else if (SvOK(sv)) {
1645 aint = (int)SvIV(sv);
1646 buf = (char*)&aint;
1647 len = sizeof(int);
1648 }
1649 if (setsockopt(fd, lvl, optname, buf, (int)len) < 0)
1650 goto nuts2;
1651 PUSHs(&sv_yes);
1652 }
1653 break;
1654 }
1655 RETURN;
1656
1657nuts:
1658 if (dowarn)
1659 warn("[gs]etsockopt() on closed fd");
748a9306 1660 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1661nuts2:
1662 RETPUSHUNDEF;
1663
1664#else
1665 DIE(no_sock_func, "setsockopt");
1666#endif
1667}
1668
1669PP(pp_getsockname)
1670{
1671#ifdef HAS_SOCKET
1672 return pp_getpeername(ARGS);
1673#else
1674 DIE(no_sock_func, "getsockname");
1675#endif
1676}
1677
1678PP(pp_getpeername)
1679{
1680 dSP;
1681#ifdef HAS_SOCKET
1682 int optype = op->op_type;
1683 SV *sv;
1684 int fd;
1685 GV *gv = (GV*)POPs;
1686 register IO *io = GvIOn(gv);
748a9306 1687 int aint;
a0d0e21e
LW		 1688
1689 if (!io || !IoIFP(io))
1690 goto nuts;
1691
1692 sv = sv_2mortal(NEWSV(22, 257));
748a9306
LW		 1693 (void)SvPOK_only(sv);
1694 SvCUR_set(sv,256);
1695 *SvEND(sv) ='\0';
1696 aint = SvCUR(sv);
a0d0e21e
LW		 1697 fd = fileno(IoIFP(io));
1698 switch (optype) {
1699 case OP_GETSOCKNAME:
748a9306 1700 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
a0d0e21e
LW		 1701 goto nuts2;
1702 break;
1703 case OP_GETPEERNAME:
748a9306 1704 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
a0d0e21e
LW		 1705 goto nuts2;
1706 break;
1707 }
748a9306
LW		 1708 SvCUR_set(sv,aint);
1709 *SvEND(sv) ='\0';
a0d0e21e
LW		 1710 PUSHs(sv);
1711 RETURN;
1712
1713nuts:
1714 if (dowarn)
1715 warn("get{sock, peer}name() on closed fd");
748a9306 1716 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1717nuts2:
1718 RETPUSHUNDEF;
1719
1720#else
1721 DIE(no_sock_func, "getpeername");
1722#endif
1723}
1724
1725/* Stat calls. */
1726
1727PP(pp_lstat)
1728{
1729 return pp_stat(ARGS);
1730}
1731
1732PP(pp_stat)
1733{
1734 dSP;
1735 GV *tmpgv;
1736 I32 max = 13;
1737
1738 if (op->op_flags & OPf_REF) {
1739 tmpgv = cGVOP->op_gv;
748a9306 1740 do_fstat:
a0d0e21e
LW		 1741 if (tmpgv != defgv) {
1742 laststype = OP_STAT;
1743 statgv = tmpgv;
1744 sv_setpv(statname, "");
1745 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1746 Fstat(fileno(IoIFP(GvIOn(tmpgv))), &statcache) < 0) {
1747 max = 0;
1748 laststatval = -1;
1749 }
1750 }
1751 else if (laststatval < 0)
1752 max = 0;
1753 }
1754 else {
748a9306
LW		 1755 SV* sv = POPs;
1756 if (SvTYPE(sv) == SVt_PVGV) {
1757 tmpgv = (GV*)sv;
1758 goto do_fstat;
1759 }
1760 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1761 tmpgv = (GV*)SvRV(sv);
1762 goto do_fstat;
1763 }
1764 sv_setpv(statname, SvPV(sv,na));
a0d0e21e
LW		 1765 statgv = Nullgv;
1766#ifdef HAS_LSTAT
1767 laststype = op->op_type;
1768 if (op->op_type == OP_LSTAT)
1769 laststatval = lstat(SvPV(statname, na), &statcache);
1770 else
1771#endif
1772 laststatval = Stat(SvPV(statname, na), &statcache);
1773 if (laststatval < 0) {
1774 if (dowarn && strchr(SvPV(statname, na), '\n'))
1775 warn(warn_nl, "stat");
1776 max = 0;
1777 }
1778 }
1779
1780 EXTEND(SP, 13);
1781 if (GIMME != G_ARRAY) {
1782 if (max)
1783 RETPUSHYES;
1784 else
1785 RETPUSHUNDEF;
1786 }
1787 if (max) {
1788 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
1789 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
1790 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
1791 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
1792 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
1793 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
1794 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
1795 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
1796 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
1797 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
1798 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
1799#ifdef USE_STAT_BLOCKS
1800 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
1801 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
1802#else
1803 PUSHs(sv_2mortal(newSVpv("", 0)));
1804 PUSHs(sv_2mortal(newSVpv("", 0)));
1805#endif
1806 }
1807 RETURN;
1808}
1809
1810PP(pp_ftrread)
1811{
1812 I32 result = my_stat(ARGS);
1813 dSP;
1814 if (result < 0)
1815 RETPUSHUNDEF;
1816 if (cando(S_IRUSR, 0, &statcache))
1817 RETPUSHYES;
1818 RETPUSHNO;
1819}
1820
1821PP(pp_ftrwrite)
1822{
1823 I32 result = my_stat(ARGS);
1824 dSP;
1825 if (result < 0)
1826 RETPUSHUNDEF;
1827 if (cando(S_IWUSR, 0, &statcache))
1828 RETPUSHYES;
1829 RETPUSHNO;
1830}
1831
1832PP(pp_ftrexec)
1833{
1834 I32 result = my_stat(ARGS);
1835 dSP;
1836 if (result < 0)
1837 RETPUSHUNDEF;
1838 if (cando(S_IXUSR, 0, &statcache))
1839 RETPUSHYES;
1840 RETPUSHNO;
1841}
1842
1843PP(pp_fteread)
1844{
1845 I32 result = my_stat(ARGS);
1846 dSP;
1847 if (result < 0)
1848 RETPUSHUNDEF;
1849 if (cando(S_IRUSR, 1, &statcache))
1850 RETPUSHYES;
1851 RETPUSHNO;
1852}
1853
1854PP(pp_ftewrite)
1855{
1856 I32 result = my_stat(ARGS);
1857 dSP;
1858 if (result < 0)
1859 RETPUSHUNDEF;
1860 if (cando(S_IWUSR, 1, &statcache))
1861 RETPUSHYES;
1862 RETPUSHNO;
1863}
1864
1865PP(pp_fteexec)
1866{
1867 I32 result = my_stat(ARGS);
1868 dSP;
1869 if (result < 0)
1870 RETPUSHUNDEF;
1871 if (cando(S_IXUSR, 1, &statcache))
1872 RETPUSHYES;
1873 RETPUSHNO;
1874}
1875
1876PP(pp_ftis)
1877{
1878 I32 result = my_stat(ARGS);
1879 dSP;
1880 if (result < 0)
1881 RETPUSHUNDEF;
1882 RETPUSHYES;
1883}
1884
1885PP(pp_fteowned)
1886{
1887 return pp_ftrowned(ARGS);
1888}
1889
1890PP(pp_ftrowned)
1891{
1892 I32 result = my_stat(ARGS);
1893 dSP;
1894 if (result < 0)
1895 RETPUSHUNDEF;
1896 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
1897 RETPUSHYES;
1898 RETPUSHNO;
1899}
1900
1901PP(pp_ftzero)
1902{
1903 I32 result = my_stat(ARGS);
1904 dSP;
1905 if (result < 0)
1906 RETPUSHUNDEF;
1907 if (!statcache.st_size)
1908 RETPUSHYES;
1909 RETPUSHNO;
1910}
1911
1912PP(pp_ftsize)
1913{
1914 I32 result = my_stat(ARGS);
1915 dSP; dTARGET;
1916 if (result < 0)
1917 RETPUSHUNDEF;
1918 PUSHi(statcache.st_size);
1919 RETURN;
1920}
1921
1922PP(pp_ftmtime)
1923{
1924 I32 result = my_stat(ARGS);
1925 dSP; dTARGET;
1926 if (result < 0)
1927 RETPUSHUNDEF;
1928 PUSHn( (basetime - statcache.st_mtime) / 86400.0 );
1929 RETURN;
1930}
1931
1932PP(pp_ftatime)
1933{
1934 I32 result = my_stat(ARGS);
1935 dSP; dTARGET;
1936 if (result < 0)
1937 RETPUSHUNDEF;
1938 PUSHn( (basetime - statcache.st_atime) / 86400.0 );
1939 RETURN;
1940}
1941
1942PP(pp_ftctime)
1943{
1944 I32 result = my_stat(ARGS);
1945 dSP; dTARGET;
1946 if (result < 0)
1947 RETPUSHUNDEF;
1948 PUSHn( (basetime - statcache.st_ctime) / 86400.0 );
1949 RETURN;
1950}
1951
1952PP(pp_ftsock)
1953{
1954 I32 result = my_stat(ARGS);
1955 dSP;
1956 if (result < 0)
1957 RETPUSHUNDEF;
1958 if (S_ISSOCK(statcache.st_mode))
1959 RETPUSHYES;
1960 RETPUSHNO;
1961}
1962
1963PP(pp_ftchr)
1964{
1965 I32 result = my_stat(ARGS);
1966 dSP;
1967 if (result < 0)
1968 RETPUSHUNDEF;
1969 if (S_ISCHR(statcache.st_mode))
1970 RETPUSHYES;
1971 RETPUSHNO;
1972}
1973
1974PP(pp_ftblk)
1975{
1976 I32 result = my_stat(ARGS);
1977 dSP;
1978 if (result < 0)
1979 RETPUSHUNDEF;
1980 if (S_ISBLK(statcache.st_mode))
1981 RETPUSHYES;
1982 RETPUSHNO;
1983}
1984
1985PP(pp_ftfile)
1986{
1987 I32 result = my_stat(ARGS);
1988 dSP;
1989 if (result < 0)
1990 RETPUSHUNDEF;
1991 if (S_ISREG(statcache.st_mode))
1992 RETPUSHYES;
1993 RETPUSHNO;
1994}
1995
1996PP(pp_ftdir)
1997{
1998 I32 result = my_stat(ARGS);
1999 dSP;
2000 if (result < 0)
2001 RETPUSHUNDEF;
2002 if (S_ISDIR(statcache.st_mode))
2003 RETPUSHYES;
2004 RETPUSHNO;
2005}
2006
2007PP(pp_ftpipe)
2008{
2009 I32 result = my_stat(ARGS);
2010 dSP;
2011 if (result < 0)
2012 RETPUSHUNDEF;
2013 if (S_ISFIFO(statcache.st_mode))
2014 RETPUSHYES;
2015 RETPUSHNO;
2016}
2017
2018PP(pp_ftlink)
2019{
2020 I32 result = my_lstat(ARGS);
2021 dSP;
2022 if (result < 0)
2023 RETPUSHUNDEF;
2024 if (S_ISLNK(statcache.st_mode))
2025 RETPUSHYES;
2026 RETPUSHNO;
2027}
2028
2029PP(pp_ftsuid)
2030{
2031 dSP;
2032#ifdef S_ISUID
2033 I32 result = my_stat(ARGS);
2034 SPAGAIN;
2035 if (result < 0)
2036 RETPUSHUNDEF;
2037 if (statcache.st_mode & S_ISUID)
2038 RETPUSHYES;
2039#endif
2040 RETPUSHNO;
2041}
2042
2043PP(pp_ftsgid)
2044{
2045 dSP;
2046#ifdef S_ISGID
2047 I32 result = my_stat(ARGS);
2048 SPAGAIN;
2049 if (result < 0)
2050 RETPUSHUNDEF;
2051 if (statcache.st_mode & S_ISGID)
2052 RETPUSHYES;
2053#endif
2054 RETPUSHNO;
2055}
2056
2057PP(pp_ftsvtx)
2058{
2059 dSP;
2060#ifdef S_ISVTX
2061 I32 result = my_stat(ARGS);
2062 SPAGAIN;
2063 if (result < 0)
2064 RETPUSHUNDEF;
2065 if (statcache.st_mode & S_ISVTX)
2066 RETPUSHYES;
2067#endif
2068 RETPUSHNO;
2069}
2070
2071PP(pp_fttty)
2072{
2073 dSP;
2074 int fd;
2075 GV *gv;
2076 char *tmps;
2077 if (op->op_flags & OPf_REF) {
2078 gv = cGVOP->op_gv;
2079 tmps = "";
2080 }
2081 else
2082 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2083 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2084 fd = fileno(IoIFP(GvIOp(gv)));
2085 else if (isDIGIT(*tmps))
2086 fd = atoi(tmps);
2087 else
2088 RETPUSHUNDEF;
2089 if (isatty(fd))
2090 RETPUSHYES;
2091 RETPUSHNO;
2092}
2093
16d20bd9
AD		 2094#if defined(atarist) /* this will work with atariST. Configure will
2095 make guesses for other systems. */
2096# define FILE_base(f) ((f)->_base)
2097# define FILE_ptr(f) ((f)->_ptr)
2098# define FILE_cnt(f) ((f)->_cnt)
2099# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 2100#endif
2101
2102PP(pp_fttext)
2103{
2104 dSP;
2105 I32 i;
2106 I32 len;
2107 I32 odd = 0;
2108 STDCHAR tbuf[512];
2109 register STDCHAR *s;
2110 register IO *io;
2111 SV *sv;
2112
2113 if (op->op_flags & OPf_REF) {
2114 EXTEND(SP, 1);
2115 if (cGVOP->op_gv == defgv) {
2116 if (statgv)
2117 io = GvIO(statgv);
2118 else {
2119 sv = statname;
2120 goto really_filename;
2121 }
2122 }
2123 else {
2124 statgv = cGVOP->op_gv;
2125 sv_setpv(statname, "");
2126 io = GvIO(statgv);
2127 }
2128 if (io && IoIFP(io)) {
16d20bd9 2129#ifdef FILE_base
a0d0e21e
LW		 2130 Fstat(fileno(IoIFP(io)), &statcache);
2131 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2132 if (op->op_type == OP_FTTEXT)
2133 RETPUSHNO;
2134 else
2135 RETPUSHYES;
16d20bd9 2136 if (FILE_cnt(IoIFP(io)) <= 0) {
a0d0e21e
LW		 2137 i = getc(IoIFP(io));
2138 if (i != EOF)
2139 (void)ungetc(i, IoIFP(io));
2140 }
16d20bd9 2141 if (FILE_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 2142 RETPUSHYES;
16d20bd9
AD		 2143 len = FILE_bufsiz(IoIFP(io));
2144 s = FILE_base(IoIFP(io));
a0d0e21e
LW		 2145#else
2146 DIE("-T and -B not implemented on filehandles");
2147#endif
2148 }
2149 else {
2150 if (dowarn)
2151 warn("Test on unopened file <%s>",
2152 GvENAME(cGVOP->op_gv));
748a9306 2153 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2154 RETPUSHUNDEF;
2155 }
2156 }
2157 else {
2158 sv = POPs;
2159 statgv = Nullgv;
2160 sv_setpv(statname, SvPV(sv, na));
2161 really_filename:
2162#ifdef HAS_OPEN3
2163 i = open(SvPV(sv, na), O_RDONLY, 0);
2164#else
2165 i = open(SvPV(sv, na), 0);
2166#endif
2167 if (i < 0) {
2168 if (dowarn && strchr(SvPV(sv, na), '\n'))
2169 warn(warn_nl, "open");
2170 RETPUSHUNDEF;
2171 }
2172 Fstat(i, &statcache);
2173 len = read(i, tbuf, 512);
2174 (void)close(i);
2175 if (len <= 0) {
2176 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2177 RETPUSHNO; /* special case NFS directories */
2178 RETPUSHYES; /* null file is anything */
2179 }
2180 s = tbuf;
2181 }
2182
2183 /* now scan s to look for textiness */
4633a7c4 2184 /* XXX ASCII dependent code */
a0d0e21e
LW		 2185
2186 for (i = 0; i < len; i++, s++) {
2187 if (!*s) { /* null never allowed in text */
2188 odd += len;
2189 break;
2190 }
2191 else if (*s & 128)
2192 odd++;
2193 else if (*s < 32 &&
2194 *s != '\n' && *s != '\r' && *s != '\b' &&
2195 *s != '\t' && *s != '\f' && *s != 27)
2196 odd++;
2197 }
2198
4633a7c4 2199 if ((odd * 3 > len) == (op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 2200 RETPUSHNO;
2201 else
2202 RETPUSHYES;
2203}
2204
2205PP(pp_ftbinary)
2206{
2207 return pp_fttext(ARGS);
2208}
2209
2210/* File calls. */
2211
2212PP(pp_chdir)
2213{
2214 dSP; dTARGET;
2215 char *tmps;
2216 SV **svp;
2217
2218 if (MAXARG < 1)
2219 tmps = Nullch;
2220 else
2221 tmps = POPp;
2222 if (!tmps || !*tmps) {
2223 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2224 if (svp)
2225 tmps = SvPV(*svp, na);
2226 }
2227 if (!tmps || !*tmps) {
2228 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2229 if (svp)
2230 tmps = SvPV(*svp, na);
2231 }
2232 TAINT_PROPER("chdir");
2233 PUSHi( chdir(tmps) >= 0 );
748a9306
LW		 2234#ifdef VMS
2235 /* Clear the DEFAULT element of ENV so we'll get the new value
2236 * in the future. */
4633a7c4 2237 hv_delete(GvHVn(envgv),"DEFAULT",7,G_DISCARD);
748a9306 2238#endif
a0d0e21e
LW		 2239 RETURN;
2240}
2241
2242PP(pp_chown)
2243{
2244 dSP; dMARK; dTARGET;
2245 I32 value;
2246#ifdef HAS_CHOWN
2247 value = (I32)apply(op->op_type, MARK, SP);
2248 SP = MARK;
2249 PUSHi(value);
2250 RETURN;
2251#else
2252 DIE(no_func, "Unsupported function chown");
2253#endif
2254}
2255
2256PP(pp_chroot)
2257{
2258 dSP; dTARGET;
2259 char *tmps;
2260#ifdef HAS_CHROOT
2261 tmps = POPp;
2262 TAINT_PROPER("chroot");
2263 PUSHi( chroot(tmps) >= 0 );
2264 RETURN;
2265#else
2266 DIE(no_func, "chroot");
2267#endif
2268}
2269
2270PP(pp_unlink)
2271{
2272 dSP; dMARK; dTARGET;
2273 I32 value;
2274 value = (I32)apply(op->op_type, MARK, SP);
2275 SP = MARK;
2276 PUSHi(value);
2277 RETURN;
2278}
2279
2280PP(pp_chmod)
2281{
2282 dSP; dMARK; dTARGET;
2283 I32 value;
2284 value = (I32)apply(op->op_type, MARK, SP);
2285 SP = MARK;
2286 PUSHi(value);
2287 RETURN;
2288}
2289
2290PP(pp_utime)
2291{
2292 dSP; dMARK; dTARGET;
2293 I32 value;
2294 value = (I32)apply(op->op_type, MARK, SP);
2295 SP = MARK;
2296 PUSHi(value);
2297 RETURN;
2298}
2299
2300PP(pp_rename)
2301{
2302 dSP; dTARGET;
2303 int anum;
2304
2305 char *tmps2 = POPp;
2306 char *tmps = SvPV(TOPs, na);
2307 TAINT_PROPER("rename");
2308#ifdef HAS_RENAME
2309 anum = rename(tmps, tmps2);
2310#else
2311 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2312 anum = 1;
2313 else {
2314 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2315 (void)UNLINK(tmps2);
2316 if (!(anum = link(tmps, tmps2)))
2317 anum = UNLINK(tmps);
2318 }
2319#endif
2320 SETi( anum >= 0 );
2321 RETURN;
2322}
2323
2324PP(pp_link)
2325{
2326 dSP; dTARGET;
2327#ifdef HAS_LINK
2328 char *tmps2 = POPp;
2329 char *tmps = SvPV(TOPs, na);
2330 TAINT_PROPER("link");
2331 SETi( link(tmps, tmps2) >= 0 );
2332#else
2333 DIE(no_func, "Unsupported function link");
2334#endif
2335 RETURN;
2336}
2337
2338PP(pp_symlink)
2339{
2340 dSP; dTARGET;
2341#ifdef HAS_SYMLINK
2342 char *tmps2 = POPp;
2343 char *tmps = SvPV(TOPs, na);
2344 TAINT_PROPER("symlink");
2345 SETi( symlink(tmps, tmps2) >= 0 );
2346 RETURN;
2347#else
2348 DIE(no_func, "symlink");
2349#endif
2350}
2351
2352PP(pp_readlink)
2353{
2354 dSP; dTARGET;
2355#ifdef HAS_SYMLINK
2356 char *tmps;
2357 int len;
2358 tmps = POPp;
2359 len = readlink(tmps, buf, sizeof buf);
2360 EXTEND(SP, 1);
2361 if (len < 0)
2362 RETPUSHUNDEF;
2363 PUSHp(buf, len);
2364 RETURN;
2365#else
2366 EXTEND(SP, 1);
2367 RETSETUNDEF; /* just pretend it's a normal file */
2368#endif
2369}
2370
2371#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2372static int
2373dooneliner(cmd, filename)
2374char *cmd;
2375char *filename;
2376{
2377 char mybuf[8192];
16d20bd9 2378 char *s,
5d94fbed 2379 *save_filename = filename;
a0d0e21e
LW		 2380 int anum = 1;
2381 FILE *myfp;
2382
2383 strcpy(mybuf, cmd);
2384 strcat(mybuf, " ");
2385 for (s = mybuf+strlen(mybuf); *filename; ) {
2386 *s++ = '\\';
2387 *s++ = *filename++;
2388 }
2389 strcpy(s, " 2>&1");
2390 myfp = my_popen(mybuf, "r");
2391 if (myfp) {
2392 *mybuf = '\0';
2393 s = fgets(mybuf, sizeof mybuf, myfp);
2394 (void)my_pclose(myfp);
2395 if (s != Nullch) {
2396 for (errno = 1; errno < sys_nerr; errno++) {
2397#ifdef HAS_SYS_ERRLIST
2398 if (instr(mybuf, sys_errlist[errno])) /* you don't see this */
2399 return 0;
2400#else
2401 char *errmsg; /* especially if it isn't there */
2402
2403 if (instr(mybuf,
2404 (errmsg = strerror(errno)) ? errmsg : "NoErRoR"))
2405 return 0;
2406#endif
2407 }
748a9306 2408 SETERRNO(0,0);
a0d0e21e
LW		 2409#ifndef EACCES
2410#define EACCES EPERM
2411#endif
2412 if (instr(mybuf, "cannot make"))
748a9306 2413 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2414 else if (instr(mybuf, "existing file"))
748a9306 2415 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2416 else if (instr(mybuf, "ile exists"))
748a9306 2417 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2418 else if (instr(mybuf, "non-exist"))
748a9306 2419 SETERRNO(ENOENT,RMS$_FNF);
a0d0e21e 2420 else if (instr(mybuf, "does not exist"))
748a9306 2421 SETERRNO(ENOENT,RMS$_FNF);
a0d0e21e 2422 else if (instr(mybuf, "not empty"))
748a9306 2423 SETERRNO(EBUSY,SS$_DEVOFFLINE);
a0d0e21e 2424 else if (instr(mybuf, "cannot access"))
748a9306 2425 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 2426 else
748a9306 2427 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 2428 return 0;
2429 }
2430 else { /* some mkdirs return no failure indication */
5d94fbed 2431 anum = (Stat(save_filename, &statbuf) >= 0);
a0d0e21e
LW		 2432 if (op->op_type == OP_RMDIR)
2433 anum = !anum;
2434 if (anum)
748a9306 2435 SETERRNO(0,0);
a0d0e21e 2436 else
748a9306 2437 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 2438 }
2439 return anum;
2440 }
2441 else
2442 return 0;
2443}
2444#endif
2445
2446PP(pp_mkdir)
2447{
2448 dSP; dTARGET;
2449 int mode = POPi;
2450#ifndef HAS_MKDIR
2451 int oldumask;
2452#endif
2453 char *tmps = SvPV(TOPs, na);
2454
2455 TAINT_PROPER("mkdir");
2456#ifdef HAS_MKDIR
2457 SETi( mkdir(tmps, mode) >= 0 );
2458#else
2459 SETi( dooneliner("mkdir", tmps) );
2460 oldumask = umask(0);
2461 umask(oldumask);
2462 chmod(tmps, (mode & ~oldumask) & 0777);
2463#endif
2464 RETURN;
2465}
2466
2467PP(pp_rmdir)
2468{
2469 dSP; dTARGET;
2470 char *tmps;
2471
2472 tmps = POPp;
2473 TAINT_PROPER("rmdir");
2474#ifdef HAS_RMDIR
2475 XPUSHi( rmdir(tmps) >= 0 );
2476#else
2477 XPUSHi( dooneliner("rmdir", tmps) );
2478#endif
2479 RETURN;
2480}
2481
2482/* Directory calls. */
2483
2484PP(pp_open_dir)
2485{
2486 dSP;
2487#if defined(Direntry_t) && defined(HAS_READDIR)
2488 char *dirname = POPp;
2489 GV *gv = (GV*)POPs;
2490 register IO *io = GvIOn(gv);
2491
2492 if (!io)
2493 goto nope;
2494
2495 if (IoDIRP(io))
2496 closedir(IoDIRP(io));
2497 if (!(IoDIRP(io) = opendir(dirname)))
2498 goto nope;
2499
2500 RETPUSHYES;
2501nope:
2502 if (!errno)
748a9306 2503 SETERRNO(EBADF,RMS$_DIR);
a0d0e21e
LW		 2504 RETPUSHUNDEF;
2505#else
2506 DIE(no_dir_func, "opendir");
2507#endif
2508}
2509
2510PP(pp_readdir)
2511{
2512 dSP;
2513#if defined(Direntry_t) && defined(HAS_READDIR)
2514#ifndef I_DIRENT
2515 Direntry_t *readdir _((DIR *));
2516#endif
2517 register Direntry_t *dp;
2518 GV *gv = (GV*)POPs;
2519 register IO *io = GvIOn(gv);
2520
2521 if (!io || !IoDIRP(io))
2522 goto nope;
2523
2524 if (GIMME == G_ARRAY) {
2525 /*SUPPRESS 560*/
2526 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2527#ifdef DIRNAMLEN
2528 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2529#else
2530 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2531#endif
2532 }
2533 }
2534 else {
2535 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2536 goto nope;
2537#ifdef DIRNAMLEN
2538 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2539#else
2540 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2541#endif
2542 }
2543 RETURN;
2544
2545nope:
2546 if (!errno)
748a9306 2547 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2548 if (GIMME == G_ARRAY)
2549 RETURN;
2550 else
2551 RETPUSHUNDEF;
2552#else
2553 DIE(no_dir_func, "readdir");
2554#endif
2555}
2556
2557PP(pp_telldir)
2558{
2559 dSP; dTARGET;
2560#if defined(HAS_TELLDIR) || defined(telldir)
2561#if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2562 long telldir _((DIR *));
2563#endif
2564 GV *gv = (GV*)POPs;
2565 register IO *io = GvIOn(gv);
2566
2567 if (!io || !IoDIRP(io))
2568 goto nope;
2569
2570 PUSHi( telldir(IoDIRP(io)) );
2571 RETURN;
2572nope:
2573 if (!errno)
748a9306 2574 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2575 RETPUSHUNDEF;
2576#else
2577 DIE(no_dir_func, "telldir");
2578#endif
2579}
2580
2581PP(pp_seekdir)
2582{
2583 dSP;
2584#if defined(HAS_SEEKDIR) || defined(seekdir)
2585 long along = POPl;
2586 GV *gv = (GV*)POPs;
2587 register IO *io = GvIOn(gv);
2588
2589 if (!io || !IoDIRP(io))
2590 goto nope;
2591
2592 (void)seekdir(IoDIRP(io), along);
2593
2594 RETPUSHYES;
2595nope:
2596 if (!errno)
748a9306 2597 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2598 RETPUSHUNDEF;
2599#else
2600 DIE(no_dir_func, "seekdir");
2601#endif
2602}
2603
2604PP(pp_rewinddir)
2605{
2606 dSP;
2607#if defined(HAS_REWINDDIR) || defined(rewinddir)
2608 GV *gv = (GV*)POPs;
2609 register IO *io = GvIOn(gv);
2610
2611 if (!io || !IoDIRP(io))
2612 goto nope;
2613
2614 (void)rewinddir(IoDIRP(io));
2615 RETPUSHYES;
2616nope:
2617 if (!errno)
748a9306 2618 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2619 RETPUSHUNDEF;
2620#else
2621 DIE(no_dir_func, "rewinddir");
2622#endif
2623}
2624
2625PP(pp_closedir)
2626{
2627 dSP;
2628#if defined(Direntry_t) && defined(HAS_READDIR)
2629 GV *gv = (GV*)POPs;
2630 register IO *io = GvIOn(gv);
2631
2632 if (!io || !IoDIRP(io))
2633 goto nope;
2634
2635#ifdef VOID_CLOSEDIR
2636 closedir(IoDIRP(io));
2637#else
748a9306
LW		 2638 if (closedir(IoDIRP(io)) < 0) {
2639 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 2640 goto nope;
748a9306 2641 }
a0d0e21e
LW		 2642#endif
2643 IoDIRP(io) = 0;
2644
2645 RETPUSHYES;
2646nope:
2647 if (!errno)
748a9306 2648 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2649 RETPUSHUNDEF;
2650#else
2651 DIE(no_dir_func, "closedir");
2652#endif
2653}
2654
2655/* Process control. */
2656
2657PP(pp_fork)
2658{
2659 dSP; dTARGET;
2660 int childpid;
2661 GV *tmpgv;
2662
2663 EXTEND(SP, 1);
2664#ifdef HAS_FORK
2665 childpid = fork();
2666 if (childpid < 0)
2667 RETSETUNDEF;
2668 if (!childpid) {
2669 /*SUPPRESS 560*/
2670 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2671 sv_setiv(GvSV(tmpgv), (I32)getpid());
2672 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2673 }
2674 PUSHi(childpid);
2675 RETURN;
2676#else
2677 DIE(no_func, "Unsupported function fork");
2678#endif
2679}
2680
2681PP(pp_wait)
2682{
2683 dSP; dTARGET;
2684 int childpid;
2685 int argflags;
2686 I32 value;
2687
2688 EXTEND(SP, 1);
2689#ifdef HAS_WAIT
2690 childpid = wait(&argflags);
2691 if (childpid > 0)
2692 pidgone(childpid, argflags);
2693 value = (I32)childpid;
748a9306 2694 statusvalue = FIXSTATUS(argflags);
a0d0e21e
LW		 2695 PUSHi(value);
2696 RETURN;
2697#else
2698 DIE(no_func, "Unsupported function wait");
2699#endif
2700}
2701
2702PP(pp_waitpid)
2703{
2704 dSP; dTARGET;
2705 int childpid;
2706 int optype;
2707 int argflags;
2708 I32 value;
2709
2710#ifdef HAS_WAIT
2711 optype = POPi;
2712 childpid = TOPi;
2713 childpid = wait4pid(childpid, &argflags, optype);
2714 value = (I32)childpid;
748a9306 2715 statusvalue = FIXSTATUS(argflags);
a0d0e21e
LW		 2716 SETi(value);
2717 RETURN;
2718#else
2719 DIE(no_func, "Unsupported function wait");
2720#endif
2721}
2722
2723PP(pp_system)
2724{
2725 dSP; dMARK; dORIGMARK; dTARGET;
2726 I32 value;
2727 int childpid;
2728 int result;
2729 int status;
ecfc5424
AD		 2730 Signal_t (*ihand)(); /* place to save signal during system() */
2731 Signal_t (*qhand)(); /* place to save signal during system() */
a0d0e21e
LW		 2732
2733#if defined(HAS_FORK) && !defined(VMS)
2734 if (SP - MARK == 1) {
2735 if (tainting) {
2736 char *junk = SvPV(TOPs, na);
2737 TAINT_ENV();
2738 TAINT_PROPER("system");
2739 }
2740 }
2741 while ((childpid = vfork()) == -1) {
2742 if (errno != EAGAIN) {
2743 value = -1;
2744 SP = ORIGMARK;
2745 PUSHi(value);
2746 RETURN;
2747 }
2748 sleep(5);
2749 }
2750 if (childpid > 0) {
2751 ihand = signal(SIGINT, SIG_IGN);
2752 qhand = signal(SIGQUIT, SIG_IGN);
748a9306
LW		 2753 do {
2754 result = wait4pid(childpid, &status, 0);
2755 } while (result == -1 && errno == EINTR);
a0d0e21e
LW		 2756 (void)signal(SIGINT, ihand);
2757 (void)signal(SIGQUIT, qhand);
748a9306 2758 statusvalue = FIXSTATUS(status);
a0d0e21e
LW		 2759 if (result < 0)
2760 value = -1;
2761 else {
2762 value = (I32)((unsigned int)status & 0xffff);
2763 }
2764 do_execfree(); /* free any memory child malloced on vfork */
2765 SP = ORIGMARK;
2766 PUSHi(value);
2767 RETURN;
2768 }
2769 if (op->op_flags & OPf_STACKED) {
2770 SV *really = *++MARK;
2771 value = (I32)do_aexec(really, MARK, SP);
2772 }
2773 else if (SP - MARK != 1)
2774 value = (I32)do_aexec(Nullsv, MARK, SP);
2775 else {
2776 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2777 }
2778 _exit(-1);
2779#else /* ! FORK or VMS */
2780 if (op->op_flags & OPf_STACKED) {
2781 SV *really = *++MARK;
2782 value = (I32)do_aspawn(really, MARK, SP);
2783 }
2784 else if (SP - MARK != 1)
2785 value = (I32)do_aspawn(Nullsv, MARK, SP);
2786 else {
2787 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
2788 }
4633a7c4 2789 statusvalue = FIXSTATUS(value);
a0d0e21e
LW		 2790 do_execfree();
2791 SP = ORIGMARK;
2792 PUSHi(value);
2793#endif /* !FORK or VMS */
2794 RETURN;
2795}
2796
2797PP(pp_exec)
2798{
2799 dSP; dMARK; dORIGMARK; dTARGET;
2800 I32 value;
2801
2802 if (op->op_flags & OPf_STACKED) {
2803 SV *really = *++MARK;
2804 value = (I32)do_aexec(really, MARK, SP);
2805 }
2806 else if (SP - MARK != 1)
2807#ifdef VMS
2808 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
2809#else
2810 value = (I32)do_aexec(Nullsv, MARK, SP);
2811#endif
2812 else {
2813 if (tainting) {
2814 char *junk = SvPV(*SP, na);
2815 TAINT_ENV();
2816 TAINT_PROPER("exec");
2817 }
2818#ifdef VMS
2819 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
2820#else
2821 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2822#endif
2823 }
2824 SP = ORIGMARK;
2825 PUSHi(value);
2826 RETURN;
2827}
2828
2829PP(pp_kill)
2830{
2831 dSP; dMARK; dTARGET;
2832 I32 value;
2833#ifdef HAS_KILL
2834 value = (I32)apply(op->op_type, MARK, SP);
2835 SP = MARK;
2836 PUSHi(value);
2837 RETURN;
2838#else
2839 DIE(no_func, "Unsupported function kill");
2840#endif
2841}
2842
2843PP(pp_getppid)
2844{
2845#ifdef HAS_GETPPID
2846 dSP; dTARGET;
2847 XPUSHi( getppid() );
2848 RETURN;
2849#else
2850 DIE(no_func, "getppid");
2851#endif
2852}
2853
2854PP(pp_getpgrp)
2855{
2856#ifdef HAS_GETPGRP
2857 dSP; dTARGET;
2858 int pid;
2859 I32 value;
2860
2861 if (MAXARG < 1)
2862 pid = 0;
2863 else
2864 pid = SvIVx(POPs);
2865#ifdef USE_BSDPGRP
2866 value = (I32)getpgrp(pid);
2867#else
2868 if (pid != 0)
2869 DIE("POSIX getpgrp can't take an argument");
2870 value = (I32)getpgrp();
2871#endif
2872 XPUSHi(value);
2873 RETURN;
2874#else
2875 DIE(no_func, "getpgrp()");
2876#endif
2877}
2878
2879PP(pp_setpgrp)
2880{
2881#ifdef HAS_SETPGRP
2882 dSP; dTARGET;
2883 int pgrp;
2884 int pid;
2885 if (MAXARG < 2) {
2886 pgrp = 0;
2887 pid = 0;
2888 }
2889 else {
2890 pgrp = POPi;
2891 pid = TOPi;
2892 }
2893
2894 TAINT_PROPER("setpgrp");
2895#ifdef USE_BSDPGRP
2896 SETi( setpgrp(pid, pgrp) >= 0 );
2897#else
2898 if ((pgrp != 0) || (pid != 0)) {
2899 DIE("POSIX setpgrp can't take an argument");
2900 }
2901 SETi( setpgrp() >= 0 );
2902#endif /* USE_BSDPGRP */
2903 RETURN;
2904#else
2905 DIE(no_func, "setpgrp()");
2906#endif
2907}
2908
2909PP(pp_getpriority)
2910{
2911 dSP; dTARGET;
2912 int which;
2913 int who;
2914#ifdef HAS_GETPRIORITY
2915 who = POPi;
2916 which = TOPi;
2917 SETi( getpriority(which, who) );
2918 RETURN;
2919#else
2920 DIE(no_func, "getpriority()");
2921#endif
2922}
2923
2924PP(pp_setpriority)
2925{
2926 dSP; dTARGET;
2927 int which;
2928 int who;
2929 int niceval;
2930#ifdef HAS_SETPRIORITY
2931 niceval = POPi;
2932 who = POPi;
2933 which = TOPi;
2934 TAINT_PROPER("setpriority");
2935 SETi( setpriority(which, who, niceval) >= 0 );
2936 RETURN;
2937#else
2938 DIE(no_func, "setpriority()");
2939#endif
2940}
2941
2942/* Time calls. */
2943
2944PP(pp_time)
2945{
2946 dSP; dTARGET;
2947 XPUSHi( time(Null(Time_t*)) );
2948 RETURN;
2949}
2950
2951#ifndef HZ
2952#define HZ 60
2953#endif
2954
2955PP(pp_tms)
2956{
2957 dSP;
2958
2959#if defined(MSDOS) || !defined(HAS_TIMES)
2960 DIE("times not implemented");
2961#else
2962 EXTEND(SP, 4);
2963
2964#ifndef VMS
2965 (void)times(&timesbuf);
2966#else
2967 (void)times((tbuffer_t *)&timesbuf); /* time.h uses different name for */
2968 /* struct tms, though same data */
2969 /* is returned. */
4633a7c4
LW		 2970#undef HZ
2971#define HZ CLK_TCK
a0d0e21e
LW		 2972#endif
2973
2974 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
2975 if (GIMME == G_ARRAY) {
2976 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
2977 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
2978 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
2979 }
2980 RETURN;
2981#endif /* MSDOS */
2982}
2983
2984PP(pp_localtime)
2985{
2986 return pp_gmtime(ARGS);
2987}
2988
2989PP(pp_gmtime)
2990{
2991 dSP;
2992 Time_t when;
2993 struct tm *tmbuf;
2994 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
2995 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
2996 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
2997
2998 if (MAXARG < 1)
2999 (void)time(&when);
3000 else
3001 when = (Time_t)SvIVx(POPs);
3002
3003 if (op->op_type == OP_LOCALTIME)
3004 tmbuf = localtime(&when);
3005 else
3006 tmbuf = gmtime(&when);
3007
3008 EXTEND(SP, 9);
3009 if (GIMME != G_ARRAY) {
3010 dTARGET;
3011 char mybuf[30];
3012 if (!tmbuf)
3013 RETPUSHUNDEF;
3014 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
3015 dayname[tmbuf->tm_wday],
3016 monname[tmbuf->tm_mon],
3017 tmbuf->tm_mday,
3018 tmbuf->tm_hour,
3019 tmbuf->tm_min,
3020 tmbuf->tm_sec,
3021 tmbuf->tm_year + 1900);
3022 PUSHp(mybuf, strlen(mybuf));
3023 }
3024 else if (tmbuf) {
3025 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
3026 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
3027 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
3028 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
3029 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
3030 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
3031 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
3032 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
3033 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
3034 }
3035 RETURN;
3036}
3037
3038PP(pp_alarm)
3039{
3040 dSP; dTARGET;
3041 int anum;
3042#ifdef HAS_ALARM
3043 anum = POPi;
3044 anum = alarm((unsigned int)anum);
3045 EXTEND(SP, 1);
3046 if (anum < 0)
3047 RETPUSHUNDEF;
3048 PUSHi((I32)anum);
3049 RETURN;
3050#else
3051 DIE(no_func, "Unsupported function alarm");
a0d0e21e
LW		 3052#endif
3053}
3054
3055PP(pp_sleep)
3056{
3057 dSP; dTARGET;
3058 I32 duration;
3059 Time_t lasttime;
3060 Time_t when;
3061
3062 (void)time(&lasttime);
3063 if (MAXARG < 1)
3064 pause();
3065 else {
3066 duration = POPi;
3067 sleep((unsigned int)duration);
3068 }
3069 (void)time(&when);
3070 XPUSHi(when - lasttime);
3071 RETURN;
3072}
3073
3074/* Shared memory. */
3075
3076PP(pp_shmget)
3077{
3078 return pp_semget(ARGS);
3079}
3080
3081PP(pp_shmctl)
3082{
3083 return pp_semctl(ARGS);
3084}
3085
3086PP(pp_shmread)
3087{
3088 return pp_shmwrite(ARGS);
3089}
3090
3091PP(pp_shmwrite)
3092{
3093#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3094 dSP; dMARK; dTARGET;
3095 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3096 SP = MARK;
3097 PUSHi(value);
3098 RETURN;
3099#else
748a9306 3100 return pp_semget(ARGS);
a0d0e21e
LW		 3101#endif
3102}
3103
3104/* Message passing. */
3105
3106PP(pp_msgget)
3107{
3108 return pp_semget(ARGS);
3109}
3110
3111PP(pp_msgctl)
3112{
3113 return pp_semctl(ARGS);
3114}
3115
3116PP(pp_msgsnd)
3117{
3118#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3119 dSP; dMARK; dTARGET;
3120 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3121 SP = MARK;
3122 PUSHi(value);
3123 RETURN;
3124#else
748a9306 3125 return pp_semget(ARGS);
a0d0e21e
LW		 3126#endif
3127}
3128
3129PP(pp_msgrcv)
3130{
3131#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3132 dSP; dMARK; dTARGET;
3133 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3134 SP = MARK;
3135 PUSHi(value);
3136 RETURN;
3137#else
748a9306 3138 return pp_semget(ARGS);
a0d0e21e
LW		 3139#endif
3140}
3141
3142/* Semaphores. */
3143
3144PP(pp_semget)
3145{
3146#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3147 dSP; dMARK; dTARGET;
3148 int anum = do_ipcget(op->op_type, MARK, SP);
3149 SP = MARK;
3150 if (anum == -1)
3151 RETPUSHUNDEF;
3152 PUSHi(anum);
3153 RETURN;
3154#else
3155 DIE("System V IPC is not implemented on this machine");
3156#endif
3157}
3158
3159PP(pp_semctl)
3160{
3161#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3162 dSP; dMARK; dTARGET;
3163 int anum = do_ipcctl(op->op_type, MARK, SP);
3164 SP = MARK;
3165 if (anum == -1)
3166 RETSETUNDEF;
3167 if (anum != 0) {
3168 PUSHi(anum);
3169 }
3170 else {
3171 PUSHp("0 but true",10);
3172 }
3173 RETURN;
3174#else
748a9306 3175 return pp_semget(ARGS);
a0d0e21e
LW		 3176#endif
3177}
3178
3179PP(pp_semop)
3180{
3181#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3182 dSP; dMARK; dTARGET;
3183 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3184 SP = MARK;
3185 PUSHi(value);
3186 RETURN;
3187#else
748a9306 3188 return pp_semget(ARGS);
a0d0e21e
LW		 3189#endif
3190}
3191
3192/* Get system info. */
3193
3194PP(pp_ghbyname)
3195{
3196#ifdef HAS_SOCKET
3197 return pp_ghostent(ARGS);
3198#else
3199 DIE(no_sock_func, "gethostbyname");
3200#endif
3201}
3202
3203PP(pp_ghbyaddr)
3204{
3205#ifdef HAS_SOCKET
3206 return pp_ghostent(ARGS);
3207#else
3208 DIE(no_sock_func, "gethostbyaddr");
3209#endif
3210}
3211
3212PP(pp_ghostent)
3213{
3214 dSP;
3215#ifdef HAS_SOCKET
3216 I32 which = op->op_type;
3217 register char **elem;
3218 register SV *sv;
3219 struct hostent *gethostbyname();
3220 struct hostent *gethostbyaddr();
3221#ifdef HAS_GETHOSTENT
3222 struct hostent *gethostent();
3223#endif
3224 struct hostent *hent;
3225 unsigned long len;
3226
3227 EXTEND(SP, 10);
3228 if (which == OP_GHBYNAME) {
3229 hent = gethostbyname(POPp);
3230 }
3231 else if (which == OP_GHBYADDR) {
3232 int addrtype = POPi;
748a9306 3233 SV *addrsv = POPs;
a0d0e21e 3234 STRLEN addrlen;
748a9306 3235 char *addr = SvPV(addrsv, addrlen);
a0d0e21e
LW		 3236
3237 hent = gethostbyaddr(addr, addrlen, addrtype);
3238 }
3239 else
3240#ifdef HAS_GETHOSTENT
3241 hent = gethostent();
3242#else
3243 DIE("gethostent not implemented");
3244#endif
3245
3246#ifdef HOST_NOT_FOUND
3247 if (!hent)
748a9306 3248 statusvalue = FIXSTATUS(h_errno);
a0d0e21e
LW		 3249#endif
3250
3251 if (GIMME != G_ARRAY) {
3252 PUSHs(sv = sv_newmortal());
3253 if (hent) {
3254 if (which == OP_GHBYNAME) {
3255 sv_setpvn(sv, hent->h_addr, hent->h_length);
3256 }
3257 else
3258 sv_setpv(sv, (char*)hent->h_name);
3259 }
3260 RETURN;
3261 }
3262
3263 if (hent) {
3264 PUSHs(sv = sv_mortalcopy(&sv_no));
3265 sv_setpv(sv, (char*)hent->h_name);
3266 PUSHs(sv = sv_mortalcopy(&sv_no));
3267 for (elem = hent->h_aliases; elem && *elem; elem++) {
3268 sv_catpv(sv, *elem);
3269 if (elem[1])
3270 sv_catpvn(sv, " ", 1);
3271 }
3272 PUSHs(sv = sv_mortalcopy(&sv_no));
3273 sv_setiv(sv, (I32)hent->h_addrtype);
3274 PUSHs(sv = sv_mortalcopy(&sv_no));
3275 len = hent->h_length;
3276 sv_setiv(sv, (I32)len);
3277#ifdef h_addr
3278 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3279 XPUSHs(sv = sv_mortalcopy(&sv_no));
3280 sv_setpvn(sv, *elem, len);
3281 }
3282#else
3283 PUSHs(sv = sv_mortalcopy(&sv_no));
3284 sv_setpvn(sv, hent->h_addr, len);
3285#endif /* h_addr */
3286 }
3287 RETURN;
3288#else
3289 DIE(no_sock_func, "gethostent");
3290#endif
3291}
3292
3293PP(pp_gnbyname)
3294{
3295#ifdef HAS_SOCKET
3296 return pp_gnetent(ARGS);
3297#else
3298 DIE(no_sock_func, "getnetbyname");
3299#endif
3300}
3301
3302PP(pp_gnbyaddr)
3303{
3304#ifdef HAS_SOCKET
3305 return pp_gnetent(ARGS);
3306#else
3307 DIE(no_sock_func, "getnetbyaddr");
3308#endif
3309}
3310
3311PP(pp_gnetent)
3312{
3313 dSP;
3314#ifdef HAS_SOCKET
3315 I32 which = op->op_type;
3316 register char **elem;
3317 register SV *sv;
3318 struct netent *getnetbyname();
3319 struct netent *getnetbyaddr();
3320 struct netent *getnetent();
3321 struct netent *nent;
3322
3323 if (which == OP_GNBYNAME)
3324 nent = getnetbyname(POPp);
3325 else if (which == OP_GNBYADDR) {
3326 int addrtype = POPi;
3327 unsigned long addr = U_L(POPn);
3328 nent = getnetbyaddr((long)addr, addrtype);
3329 }
3330 else
3331 nent = getnetent();
3332
3333 EXTEND(SP, 4);
3334 if (GIMME != G_ARRAY) {
3335 PUSHs(sv = sv_newmortal());
3336 if (nent) {
3337 if (which == OP_GNBYNAME)
3338 sv_setiv(sv, (I32)nent->n_net);
3339 else
3340 sv_setpv(sv, nent->n_name);
3341 }
3342 RETURN;
3343 }
3344
3345 if (nent) {
3346 PUSHs(sv = sv_mortalcopy(&sv_no));
3347 sv_setpv(sv, nent->n_name);
3348 PUSHs(sv = sv_mortalcopy(&sv_no));
3349 for (elem = nent->n_aliases; *elem; elem++) {
3350 sv_catpv(sv, *elem);
3351 if (elem[1])
3352 sv_catpvn(sv, " ", 1);
3353 }
3354 PUSHs(sv = sv_mortalcopy(&sv_no));
3355 sv_setiv(sv, (I32)nent->n_addrtype);
3356 PUSHs(sv = sv_mortalcopy(&sv_no));
3357 sv_setiv(sv, (I32)nent->n_net);
3358 }
3359
3360 RETURN;
3361#else
3362 DIE(no_sock_func, "getnetent");
3363#endif
3364}
3365
3366PP(pp_gpbyname)
3367{
3368#ifdef HAS_SOCKET
3369 return pp_gprotoent(ARGS);
3370#else
3371 DIE(no_sock_func, "getprotobyname");
3372#endif
3373}
3374
3375PP(pp_gpbynumber)
3376{
3377#ifdef HAS_SOCKET
3378 return pp_gprotoent(ARGS);
3379#else
3380 DIE(no_sock_func, "getprotobynumber");
3381#endif
3382}
3383
3384PP(pp_gprotoent)
3385{
3386 dSP;
3387#ifdef HAS_SOCKET
3388 I32 which = op->op_type;
3389 register char **elem;
3390 register SV *sv;
3391 struct protoent *getprotobyname();
3392 struct protoent *getprotobynumber();
3393 struct protoent *getprotoent();
3394 struct protoent *pent;
3395
3396 if (which == OP_GPBYNAME)
3397 pent = getprotobyname(POPp);
3398 else if (which == OP_GPBYNUMBER)
3399 pent = getprotobynumber(POPi);
3400 else
3401 pent = getprotoent();
3402
3403 EXTEND(SP, 3);
3404 if (GIMME != G_ARRAY) {
3405 PUSHs(sv = sv_newmortal());
3406 if (pent) {
3407 if (which == OP_GPBYNAME)
3408 sv_setiv(sv, (I32)pent->p_proto);
3409 else
3410 sv_setpv(sv, pent->p_name);
3411 }
3412 RETURN;
3413 }
3414
3415 if (pent) {
3416 PUSHs(sv = sv_mortalcopy(&sv_no));
3417 sv_setpv(sv, pent->p_name);
3418 PUSHs(sv = sv_mortalcopy(&sv_no));
3419 for (elem = pent->p_aliases; *elem; elem++) {
3420 sv_catpv(sv, *elem);
3421 if (elem[1])
3422 sv_catpvn(sv, " ", 1);
3423 }
3424 PUSHs(sv = sv_mortalcopy(&sv_no));
3425 sv_setiv(sv, (I32)pent->p_proto);
3426 }
3427
3428 RETURN;
3429#else
3430 DIE(no_sock_func, "getprotoent");
3431#endif
3432}
3433
3434PP(pp_gsbyname)
3435{
3436#ifdef HAS_SOCKET
3437 return pp_gservent(ARGS);
3438#else
3439 DIE(no_sock_func, "getservbyname");
3440#endif
3441}
3442
3443PP(pp_gsbyport)
3444{
3445#ifdef HAS_SOCKET
3446 return pp_gservent(ARGS);
3447#else
3448 DIE(no_sock_func, "getservbyport");
3449#endif
3450}
3451
3452PP(pp_gservent)
3453{
3454 dSP;
3455#ifdef HAS_SOCKET
3456 I32 which = op->op_type;
3457 register char **elem;
3458 register SV *sv;
3459 struct servent *getservbyname();
3460 struct servent *getservbynumber();
3461 struct servent *getservent();
3462 struct servent *sent;
3463
3464 if (which == OP_GSBYNAME) {
3465 char *proto = POPp;
3466 char *name = POPp;
3467
3468 if (proto && !*proto)
3469 proto = Nullch;
3470
3471 sent = getservbyname(name, proto);
3472 }
3473 else if (which == OP_GSBYPORT) {
3474 char *proto = POPp;
3475 int port = POPi;
3476
3477 sent = getservbyport(port, proto);
3478 }
3479 else
3480 sent = getservent();
3481
3482 EXTEND(SP, 4);
3483 if (GIMME != G_ARRAY) {
3484 PUSHs(sv = sv_newmortal());
3485 if (sent) {
3486 if (which == OP_GSBYNAME) {
3487#ifdef HAS_NTOHS
3488 sv_setiv(sv, (I32)ntohs(sent->s_port));
3489#else
3490 sv_setiv(sv, (I32)(sent->s_port));
3491#endif
3492 }
3493 else
3494 sv_setpv(sv, sent->s_name);
3495 }
3496 RETURN;
3497 }
3498
3499 if (sent) {
3500 PUSHs(sv = sv_mortalcopy(&sv_no));
3501 sv_setpv(sv, sent->s_name);
3502 PUSHs(sv = sv_mortalcopy(&sv_no));
3503 for (elem = sent->s_aliases; *elem; elem++) {
3504 sv_catpv(sv, *elem);
3505 if (elem[1])
3506 sv_catpvn(sv, " ", 1);
3507 }
3508 PUSHs(sv = sv_mortalcopy(&sv_no));
3509#ifdef HAS_NTOHS
3510 sv_setiv(sv, (I32)ntohs(sent->s_port));
3511#else
3512 sv_setiv(sv, (I32)(sent->s_port));
3513#endif
3514 PUSHs(sv = sv_mortalcopy(&sv_no));
3515 sv_setpv(sv, sent->s_proto);
3516 }
3517
3518 RETURN;
3519#else
3520 DIE(no_sock_func, "getservent");
3521#endif
3522}
3523
3524PP(pp_shostent)
3525{
3526 dSP;
3527#ifdef HAS_SOCKET
3528 sethostent(TOPi);
3529 RETSETYES;
3530#else
3531 DIE(no_sock_func, "sethostent");
3532#endif
3533}
3534
3535PP(pp_snetent)
3536{
3537 dSP;
3538#ifdef HAS_SOCKET
3539 setnetent(TOPi);
3540 RETSETYES;
3541#else
3542 DIE(no_sock_func, "setnetent");
3543#endif
3544}
3545
3546PP(pp_sprotoent)
3547{
3548 dSP;
3549#ifdef HAS_SOCKET
3550 setprotoent(TOPi);
3551 RETSETYES;
3552#else
3553 DIE(no_sock_func, "setprotoent");
3554#endif
3555}
3556
3557PP(pp_sservent)
3558{
3559 dSP;
3560#ifdef HAS_SOCKET
3561 setservent(TOPi);
3562 RETSETYES;
3563#else
3564 DIE(no_sock_func, "setservent");
3565#endif
3566}
3567
3568PP(pp_ehostent)
3569{
3570 dSP;
3571#ifdef HAS_SOCKET
3572 endhostent();
3573 EXTEND(sp,1);
3574 RETPUSHYES;
3575#else
3576 DIE(no_sock_func, "endhostent");
3577#endif
3578}
3579
3580PP(pp_enetent)
3581{
3582 dSP;
3583#ifdef HAS_SOCKET
3584 endnetent();
3585 EXTEND(sp,1);
3586 RETPUSHYES;
3587#else
3588 DIE(no_sock_func, "endnetent");
3589#endif
3590}
3591
3592PP(pp_eprotoent)
3593{
3594 dSP;
3595#ifdef HAS_SOCKET
3596 endprotoent();
3597 EXTEND(sp,1);
3598 RETPUSHYES;
3599#else
3600 DIE(no_sock_func, "endprotoent");
3601#endif
3602}
3603
3604PP(pp_eservent)
3605{
3606 dSP;
3607#ifdef HAS_SOCKET
3608 endservent();
3609 EXTEND(sp,1);
3610 RETPUSHYES;
3611#else
3612 DIE(no_sock_func, "endservent");
3613#endif
3614}
3615
3616PP(pp_gpwnam)
3617{
3618#ifdef HAS_PASSWD
3619 return pp_gpwent(ARGS);
3620#else
3621 DIE(no_func, "getpwnam");
3622#endif
3623}
3624
3625PP(pp_gpwuid)
3626{
3627#ifdef HAS_PASSWD
3628 return pp_gpwent(ARGS);
3629#else
3630 DIE(no_func, "getpwuid");
3631#endif
3632}
3633
3634PP(pp_gpwent)
3635{
3636 dSP;
3637#ifdef HAS_PASSWD
3638 I32 which = op->op_type;
3639 register SV *sv;
3640 struct passwd *pwent;
3641
3642 if (which == OP_GPWNAM)
3643 pwent = getpwnam(POPp);
3644 else if (which == OP_GPWUID)
3645 pwent = getpwuid(POPi);
3646 else
3647 pwent = (struct passwd *)getpwent();
3648
3649 EXTEND(SP, 10);
3650 if (GIMME != G_ARRAY) {
3651 PUSHs(sv = sv_newmortal());
3652 if (pwent) {
3653 if (which == OP_GPWNAM)
3654 sv_setiv(sv, (I32)pwent->pw_uid);
3655 else
3656 sv_setpv(sv, pwent->pw_name);
3657 }
3658 RETURN;
3659 }
3660
3661 if (pwent) {
3662 PUSHs(sv = sv_mortalcopy(&sv_no));
3663 sv_setpv(sv, pwent->pw_name);
3664 PUSHs(sv = sv_mortalcopy(&sv_no));
3665 sv_setpv(sv, pwent->pw_passwd);
3666 PUSHs(sv = sv_mortalcopy(&sv_no));
3667 sv_setiv(sv, (I32)pwent->pw_uid);
3668 PUSHs(sv = sv_mortalcopy(&sv_no));
3669 sv_setiv(sv, (I32)pwent->pw_gid);
3670 PUSHs(sv = sv_mortalcopy(&sv_no));
3671#ifdef PWCHANGE
3672 sv_setiv(sv, (I32)pwent->pw_change);
3673#else
3674#ifdef PWQUOTA
3675 sv_setiv(sv, (I32)pwent->pw_quota);
3676#else
3677#ifdef PWAGE
3678 sv_setpv(sv, pwent->pw_age);
3679#endif
3680#endif
3681#endif
3682 PUSHs(sv = sv_mortalcopy(&sv_no));
3683#ifdef PWCLASS
3684 sv_setpv(sv, pwent->pw_class);
3685#else
3686#ifdef PWCOMMENT
3687 sv_setpv(sv, pwent->pw_comment);
3688#endif
3689#endif
3690 PUSHs(sv = sv_mortalcopy(&sv_no));
3691 sv_setpv(sv, pwent->pw_gecos);
3692 PUSHs(sv = sv_mortalcopy(&sv_no));
3693 sv_setpv(sv, pwent->pw_dir);
3694 PUSHs(sv = sv_mortalcopy(&sv_no));
3695 sv_setpv(sv, pwent->pw_shell);
3696#ifdef PWEXPIRE
3697 PUSHs(sv = sv_mortalcopy(&sv_no));
3698 sv_setiv(sv, (I32)pwent->pw_expire);
3699#endif
3700 }
3701 RETURN;
3702#else
3703 DIE(no_func, "getpwent");
3704#endif
3705}
3706
3707PP(pp_spwent)
3708{
3709 dSP;
3710#ifdef HAS_PASSWD
3711 setpwent();
3712 RETPUSHYES;
3713#else
3714 DIE(no_func, "setpwent");
3715#endif
3716}
3717
3718PP(pp_epwent)
3719{
3720 dSP;
3721#ifdef HAS_PASSWD
3722 endpwent();
3723 RETPUSHYES;
3724#else
3725 DIE(no_func, "endpwent");
3726#endif
3727}
3728
3729PP(pp_ggrnam)
3730{
3731#ifdef HAS_GROUP
3732 return pp_ggrent(ARGS);
3733#else
3734 DIE(no_func, "getgrnam");
3735#endif
3736}
3737
3738PP(pp_ggrgid)
3739{
3740#ifdef HAS_GROUP
3741 return pp_ggrent(ARGS);
3742#else
3743 DIE(no_func, "getgrgid");
3744#endif
3745}
3746
3747PP(pp_ggrent)
3748{
3749 dSP;
3750#ifdef HAS_GROUP
3751 I32 which = op->op_type;
3752 register char **elem;
3753 register SV *sv;
3754 struct group *grent;
3755
3756 if (which == OP_GGRNAM)
3757 grent = (struct group *)getgrnam(POPp);
3758 else if (which == OP_GGRGID)
3759 grent = (struct group *)getgrgid(POPi);
3760 else
3761 grent = (struct group *)getgrent();
3762
3763 EXTEND(SP, 4);
3764 if (GIMME != G_ARRAY) {
3765 PUSHs(sv = sv_newmortal());
3766 if (grent) {
3767 if (which == OP_GGRNAM)
3768 sv_setiv(sv, (I32)grent->gr_gid);
3769 else
3770 sv_setpv(sv, grent->gr_name);
3771 }
3772 RETURN;
3773 }
3774
3775 if (grent) {
3776 PUSHs(sv = sv_mortalcopy(&sv_no));
3777 sv_setpv(sv, grent->gr_name);
3778 PUSHs(sv = sv_mortalcopy(&sv_no));
3779 sv_setpv(sv, grent->gr_passwd);
3780 PUSHs(sv = sv_mortalcopy(&sv_no));
3781 sv_setiv(sv, (I32)grent->gr_gid);
3782 PUSHs(sv = sv_mortalcopy(&sv_no));
3783 for (elem = grent->gr_mem; *elem; elem++) {
3784 sv_catpv(sv, *elem);
3785 if (elem[1])
3786 sv_catpvn(sv, " ", 1);
3787 }
3788 }
3789
3790 RETURN;
3791#else
3792 DIE(no_func, "getgrent");
3793#endif
3794}
3795
3796PP(pp_sgrent)
3797{
3798 dSP;
3799#ifdef HAS_GROUP
3800 setgrent();
3801 RETPUSHYES;
3802#else
3803 DIE(no_func, "setgrent");
3804#endif
3805}
3806
3807PP(pp_egrent)
3808{
3809 dSP;
3810#ifdef HAS_GROUP
3811 endgrent();
3812 RETPUSHYES;
3813#else
3814 DIE(no_func, "endgrent");
3815#endif
3816}
3817
3818PP(pp_getlogin)
3819{
3820 dSP; dTARGET;
3821#ifdef HAS_GETLOGIN
3822 char *tmps;
3823 EXTEND(SP, 1);
3824 if (!(tmps = getlogin()))
3825 RETPUSHUNDEF;
3826 PUSHp(tmps, strlen(tmps));
3827 RETURN;
3828#else
3829 DIE(no_func, "getlogin");
3830#endif
3831}
3832
3833/* Miscellaneous. */
3834
3835PP(pp_syscall)
3836{
3837#ifdef HAS_SYSCALL
3838 dSP; dMARK; dORIGMARK; dTARGET;
3839 register I32 items = SP - MARK;
3840 unsigned long a[20];
3841 register I32 i = 0;
3842 I32 retval = -1;
748a9306 3843 MAGIC *mg;
a0d0e21e
LW		 3844
3845 if (tainting) {
3846 while (++MARK <= SP) {
748a9306
LW		 3847 if (SvGMAGICAL(*MARK) && SvSMAGICAL(*MARK) &&
3848 (mg = mg_find(*MARK, 't')) && mg->mg_len & 1)
a0d0e21e
LW		 3849 tainted = TRUE;
3850 }
3851 MARK = ORIGMARK;
3852 TAINT_PROPER("syscall");
3853 }
3854
3855 /* This probably won't work on machines where sizeof(long) != sizeof(int)
3856 * or where sizeof(long) != sizeof(char*). But such machines will
3857 * not likely have syscall implemented either, so who cares?
3858 */
3859 while (++MARK <= SP) {
3860 if (SvNIOK(*MARK) || !i)
3861 a[i++] = SvIV(*MARK);
748a9306
LW		 3862 else if (*MARK == &sv_undef)
3863 a[i++] = 0;
3864 else
3865 a[i++] = (unsigned long)SvPV_force(*MARK, na);
a0d0e21e
LW		 3866 if (i > 15)
3867 break;
3868 }
3869 switch (items) {
3870 default:
3871 DIE("Too many args to syscall");
3872 case 0:
3873 DIE("Too few args to syscall");
3874 case 1:
3875 retval = syscall(a[0]);
3876 break;
3877 case 2:
3878 retval = syscall(a[0],a[1]);
3879 break;
3880 case 3:
3881 retval = syscall(a[0],a[1],a[2]);
3882 break;
3883 case 4:
3884 retval = syscall(a[0],a[1],a[2],a[3]);
3885 break;
3886 case 5:
3887 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
3888 break;
3889 case 6:
3890 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
3891 break;
3892 case 7:
3893 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
3894 break;
3895 case 8:
3896 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
3897 break;
3898#ifdef atarist
3899 case 9:
3900 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
3901 break;
3902 case 10:
3903 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
3904 break;
3905 case 11:
3906 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3907 a[10]);
3908 break;
3909 case 12:
3910 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3911 a[10],a[11]);
3912 break;
3913 case 13:
3914 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3915 a[10],a[11],a[12]);
3916 break;
3917 case 14:
3918 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3919 a[10],a[11],a[12],a[13]);
3920 break;
3921#endif /* atarist */
3922 }
3923 SP = ORIGMARK;
3924 PUSHi(retval);
3925 RETURN;
3926#else
3927 DIE(no_func, "syscall");
3928#endif
3929}
3930
16d20bd9
AD		 3931#if !defined(HAS_FLOCK) && defined(HAS_LOCKF)
3932
3933/* XXX Emulate flock() with lockf(). This is just to increase
3934 portability of scripts. The calls are not completely
3935 interchangeable. What's really needed is a good file
3936 locking module.
3937*/
3938
3939/* We might need <unistd.h> because it sometimes defines the lockf()
3940 constants. Unfortunately, <unistd.h> causes troubles on some mixed
3941 (BSD/POSIX) systems, such as SunOS 4.1.3. We could just try including
3942 <unistd.h> here in this part of the file, but that might
3943 conflict with various other #defines and includes above, such as
3944 #define vfork fork above.
3945
3946 Further, the lockf() constants aren't POSIX, so they might not be
3947 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
3948 just stick in the SVID values and be done with it. Sigh.
3949*/
3950
3951# ifndef F_ULOCK
3952# define F_ULOCK 0 /* Unlock a previously locked region */
3953# endif
3954# ifndef F_LOCK
3955# define F_LOCK 1 /* Lock a region for exclusive use */
3956# endif
3957# ifndef F_TLOCK
3958# define F_TLOCK 2 /* Test and lock a region for exclusive use */
3959# endif
3960# ifndef F_TEST
3961# define F_TEST 3 /* Test a region for other processes locks */
3962# endif
3963
3964/* These are the flock() constants. Since this sytems doesn't have
3965 flock(), the values of the constants are probably not available.
3966*/
3967# ifndef LOCK_SH
3968# define LOCK_SH 1
3969# endif
3970# ifndef LOCK_EX
3971# define LOCK_EX 2
3972# endif
3973# ifndef LOCK_NB
3974# define LOCK_NB 4
3975# endif
3976# ifndef LOCK_UN
3977# define LOCK_UN 8
3978# endif
3979
3980int
3981lockf_emulate_flock (fd, operation)
3982int fd;
3983int operation;
3984{
3985 int i;
3986 switch (operation) {
3987
3988 /* LOCK_SH - get a shared lock */
3989 case LOCK_SH:
3990 /* LOCK_EX - get an exclusive lock */
3991 case LOCK_EX:
3992 i = lockf (fd, F_LOCK, 0);
3993 break;
3994
3995 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
3996 case LOCK_SH|LOCK_NB:
3997 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
3998 case LOCK_EX|LOCK_NB:
3999 i = lockf (fd, F_TLOCK, 0);
4000 if (i == -1)
4001 if ((errno == EAGAIN) || (errno == EACCES))
4002 errno = EWOULDBLOCK;
4003 break;
4004
4005 /* LOCK_UN - unlock */
4006 case LOCK_UN:
4007 i = lockf (fd, F_ULOCK, 0);
4008 break;
4009
4010 /* Default - can't decipher operation */
4011 default:
4012 i = -1;
4013 errno = EINVAL;
4014 break;
4015 }
4016 return (i);
4017}
4018#endif
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