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This is my patch patch.1n for perl5.001.
[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 }
133 statusvalue = my_pclose(fp);
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) {
195 SV *error = GvSV(gv_fetchpv("@", TRUE, SVt_PV));
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) {
221 SV *error = GvSV(gv_fetchpv("@", TRUE, SVt_PV));
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;
244 else
245 sv = GvSV(TOPs);
246 gv = (GV*)POPs;
247 tmps = SvPV(sv, len);
248 if (do_open(gv, tmps, len,Nullfp)) {
249 IoLINES(GvIOp(gv)) = 0;
250 PUSHi( (I32)forkprocess );
251 }
252 else if (forkprocess == 0) /* we are a new child */
253 PUSHi(0);
254 else
255 RETPUSHUNDEF;
256 RETURN;
257}
258
259PP(pp_close)
260{
261 dSP;
262 GV *gv;
263
264 if (MAXARG == 0)
265 gv = defoutgv;
266 else
267 gv = (GV*)POPs;
268 EXTEND(SP, 1);
269 PUSHs( do_close(gv, TRUE) ? &sv_yes : &sv_no );
270 RETURN;
271}
272
273PP(pp_pipe_op)
274{
275 dSP;
276#ifdef HAS_PIPE
277 GV *rgv;
278 GV *wgv;
279 register IO *rstio;
280 register IO *wstio;
281 int fd[2];
282
283 wgv = (GV*)POPs;
284 rgv = (GV*)POPs;
285
286 if (!rgv || !wgv)
287 goto badexit;
288
289 rstio = GvIOn(rgv);
290 wstio = GvIOn(wgv);
291
292 if (IoIFP(rstio))
293 do_close(rgv, FALSE);
294 if (IoIFP(wstio))
295 do_close(wgv, FALSE);
296
297 if (pipe(fd) < 0)
298 goto badexit;
299
300 IoIFP(rstio) = fdopen(fd[0], "r");
301 IoOFP(wstio) = fdopen(fd[1], "w");
302 IoIFP(wstio) = IoOFP(wstio);
303 IoTYPE(rstio) = '<';
304 IoTYPE(wstio) = '>';
305
306 if (!IoIFP(rstio) || !IoOFP(wstio)) {
307 if (IoIFP(rstio)) fclose(IoIFP(rstio));
308 else close(fd[0]);
309 if (IoOFP(wstio)) fclose(IoOFP(wstio));
310 else close(fd[1]);
311 goto badexit;
312 }
313
314 RETPUSHYES;
315
316badexit:
317 RETPUSHUNDEF;
318#else
319 DIE(no_func, "pipe");
320#endif
321}
322
323PP(pp_fileno)
324{
325 dSP; dTARGET;
326 GV *gv;
327 IO *io;
328 FILE *fp;
329 if (MAXARG < 1)
330 RETPUSHUNDEF;
331 gv = (GV*)POPs;
332 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
333 RETPUSHUNDEF;
334 PUSHi(fileno(fp));
335 RETURN;
336}
337
338PP(pp_umask)
339{
340 dSP; dTARGET;
341 int anum;
342
343#ifdef HAS_UMASK
344 if (MAXARG < 1) {
345 anum = umask(0);
346 (void)umask(anum);
347 }
348 else
349 anum = umask(POPi);
350 TAINT_PROPER("umask");
351 XPUSHi(anum);
352#else
353 DIE(no_func, "Unsupported function umask");
354#endif
355 RETURN;
356}
357
358PP(pp_binmode)
359{
360 dSP;
361 GV *gv;
362 IO *io;
363 FILE *fp;
364
365 if (MAXARG < 1)
366 RETPUSHUNDEF;
367
368 gv = (GV*)POPs;
369
370 EXTEND(SP, 1);
371 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
372 RETSETUNDEF;
373
374#ifdef DOSISH
375#ifdef atarist
376 if (!fflush(fp) && (fp->_flag |= _IOBIN))
377 RETPUSHYES;
378 else
379 RETPUSHUNDEF;
380#else
381 if (setmode(fileno(fp), OP_BINARY) != -1)
382 RETPUSHYES;
383 else
384 RETPUSHUNDEF;
385#endif
386#else
387 RETPUSHYES;
388#endif
389}
390
391PP(pp_tie)
392{
393 dSP;
394 SV *varsv;
395 HV* stash;
396 GV *gv;
397 BINOP myop;
398 SV *sv;
399 SV **mark = stack_base + ++*markstack_ptr; /* reuse in entersub */
400 I32 markoff = mark - stack_base - 1;
401 char *methname;
402
403 varsv = mark[0];
404 if (SvTYPE(varsv) == SVt_PVHV)
405 methname = "TIEHASH";
406 else if (SvTYPE(varsv) == SVt_PVAV)
407 methname = "TIEARRAY";
408 else if (SvTYPE(varsv) == SVt_PVGV)
409 methname = "TIEHANDLE";
410 else
411 methname = "TIESCALAR";
412
413 stash = gv_stashsv(mark[1], FALSE);
414 if (!stash || !(gv = gv_fetchmethod(stash, methname)) || !GvCV(gv))
415 DIE("Can't locate object method \"%s\" via package \"%s\"",
416 methname, SvPV(mark[1],na));
417
418 Zero(&myop, 1, BINOP);
419 myop.op_last = (OP *) &myop;
420 myop.op_next = Nullop;
421 myop.op_flags = OPf_KNOW|OPf_STACKED;
422
423 ENTER;
424 SAVESPTR(op);
425 op = (OP *) &myop;
426
427 XPUSHs(gv);
428 PUTBACK;
429
430 if (op = pp_entersub())
431 run();
432 SPAGAIN;
433
434 sv = TOPs;
435 if (sv_isobject(sv)) {
436 if (SvTYPE(varsv) == SVt_PVHV || SvTYPE(varsv) == SVt_PVAV) {
437 sv_unmagic(varsv, 'P');
438 sv_magic(varsv, sv, 'P', Nullch, 0);
439 }
440 else {
441 sv_unmagic(varsv, 'q');
442 sv_magic(varsv, sv, 'q', Nullch, 0);
443 }
444 }
445 LEAVE;
446 SP = stack_base + markoff;
447 PUSHs(sv);
448 RETURN;
449}
450
451PP(pp_untie)
452{
453 dSP;
454 if (SvTYPE(TOPs) == SVt_PVHV || SvTYPE(TOPs) == SVt_PVAV)
455 sv_unmagic(TOPs, 'P');
456 else
457 sv_unmagic(TOPs, 'q');
458 RETSETYES;
459}
460
461PP(pp_dbmopen)
462{
463 dSP;
464 HV *hv;
465 dPOPPOPssrl;
466 HV* stash;
467 GV *gv;
468 BINOP myop;
469 SV *sv;
470
471 hv = (HV*)POPs;
472
473 sv = sv_mortalcopy(&sv_no);
474 sv_setpv(sv, "AnyDBM_File");
475 stash = gv_stashsv(sv, FALSE);
476 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv)) {
477 PUTBACK;
478 perl_requirepv("AnyDBM_File.pm");
479 SPAGAIN;
480 if (!(gv = gv_fetchmethod(stash, "TIEHASH")) || !GvCV(gv))
481 DIE("No dbm on this machine");
482 }
483
484 Zero(&myop, 1, BINOP);
485 myop.op_last = (OP *) &myop;
486 myop.op_next = Nullop;
487 myop.op_flags = OPf_KNOW|OPf_STACKED;
488
489 ENTER;
490 SAVESPTR(op);
491 op = (OP *) &myop;
492 PUTBACK;
493 pp_pushmark();
494
495 EXTEND(sp, 5);
496 PUSHs(sv);
497 PUSHs(left);
498 if (SvIV(right))
499 PUSHs(sv_2mortal(newSViv(O_RDWR|O_CREAT)));
500 else
501 PUSHs(sv_2mortal(newSViv(O_RDWR)));
502 PUSHs(right);
503 PUSHs(gv);
504 PUTBACK;
505
506 if (op = pp_entersub())
507 run();
508 SPAGAIN;
509
510 if (!sv_isobject(TOPs)) {
511 sp--;
512 op = (OP *) &myop;
513 PUTBACK;
514 pp_pushmark();
515
516 PUSHs(sv);
517 PUSHs(left);
518 PUSHs(sv_2mortal(newSViv(O_RDONLY)));
519 PUSHs(right);
520 PUSHs(gv);
521 PUTBACK;
522
523 if (op = pp_entersub())
524 run();
525 SPAGAIN;
526 }
527
528 if (sv_isobject(TOPs))
529 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
530 LEAVE;
531 RETURN;
532}
533
534PP(pp_dbmclose)
535{
536 return pp_untie(ARGS);
537}
538
539PP(pp_sselect)
540{
541 dSP; dTARGET;
542#ifdef HAS_SELECT
543 register I32 i;
544 register I32 j;
545 register char *s;
546 register SV *sv;
547 double value;
548 I32 maxlen = 0;
549 I32 nfound;
550 struct timeval timebuf;
551 struct timeval *tbuf = &timebuf;
552 I32 growsize;
553 char *fd_sets[4];
554#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
555 I32 masksize;
556 I32 offset;
557 I32 k;
558
559# if BYTEORDER & 0xf0000
560# define ORDERBYTE (0x88888888 - BYTEORDER)
561# else
562# define ORDERBYTE (0x4444 - BYTEORDER)
563# endif
564
565#endif
566
567 SP -= 4;
568 for (i = 1; i <= 3; i++) {
569 if (!SvPOK(SP[i]))
570 continue;
571 j = SvCUR(SP[i]);
572 if (maxlen < j)
573 maxlen = j;
574 }
575
576#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
577 growsize = maxlen; /* little endians can use vecs directly */
578#else
579#ifdef NFDBITS
580
581#ifndef NBBY
582#define NBBY 8
583#endif
584
585 masksize = NFDBITS / NBBY;
586#else
587 masksize = sizeof(long); /* documented int, everyone seems to use long */
588#endif
589 growsize = maxlen + (masksize - (maxlen % masksize));
590 Zero(&fd_sets[0], 4, char*);
591#endif
592
593 sv = SP[4];
594 if (SvOK(sv)) {
595 value = SvNV(sv);
596 if (value < 0.0)
597 value = 0.0;
598 timebuf.tv_sec = (long)value;
599 value -= (double)timebuf.tv_sec;
600 timebuf.tv_usec = (long)(value * 1000000.0);
601 }
602 else
603 tbuf = Null(struct timeval*);
604
605 for (i = 1; i <= 3; i++) {
606 sv = SP[i];
607 if (!SvOK(sv)) {
608 fd_sets[i] = 0;
609 continue;
610 }
611 else if (!SvPOK(sv))
612 SvPV_force(sv,na); /* force string conversion */
613 j = SvLEN(sv);
614 if (j < growsize) {
615 Sv_Grow(sv, growsize);
616 s = SvPVX(sv) + j;
617 while (++j <= growsize) {
618 *s++ = '\0';
619 }
620 }
621#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
622 s = SvPVX(sv);
623 New(403, fd_sets[i], growsize, char);
624 for (offset = 0; offset < growsize; offset += masksize) {
625 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
626 fd_sets[i][j+offset] = s[(k % masksize) + offset];
627 }
628#else
629 fd_sets[i] = SvPVX(sv);
630#endif
631 }
632
633 nfound = select(
634 maxlen * 8,
635 (Select_fd_set_t) fd_sets[1],
636 (Select_fd_set_t) fd_sets[2],
637 (Select_fd_set_t) fd_sets[3],
638 tbuf);
639 for (i = 1; i <= 3; i++) {
640 if (fd_sets[i]) {
641 sv = SP[i];
642#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
643 s = SvPVX(sv);
644 for (offset = 0; offset < growsize; offset += masksize) {
645 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
646 s[(k % masksize) + offset] = fd_sets[i][j+offset];
647 }
648 Safefree(fd_sets[i]);
649#endif
650 SvSETMAGIC(sv);
651 }
652 }
653
654 PUSHi(nfound);
655 if (GIMME == G_ARRAY && tbuf) {
656 value = (double)(timebuf.tv_sec) +
657 (double)(timebuf.tv_usec) / 1000000.0;
658 PUSHs(sv = sv_mortalcopy(&sv_no));
659 sv_setnv(sv, value);
660 }
661 RETURN;
662#else
663 DIE("select not implemented");
664#endif
665}
666
667PP(pp_select)
668{
669 dSP; dTARGET;
670 GV *oldgv = defoutgv;
671 if (op->op_private > 0) {
672 defoutgv = (GV*)POPs;
673 if (!GvIO(defoutgv))
674 gv_IOadd(defoutgv);
675 }
676 gv_efullname(TARG, oldgv);
677 XPUSHTARG;
678 RETURN;
679}
680
681PP(pp_getc)
682{
683 dSP; dTARGET;
684 GV *gv;
685
686 if (MAXARG <= 0)
687 gv = stdingv;
688 else
689 gv = (GV*)POPs;
690 if (!gv)
691 gv = argvgv;
692 if (!gv || do_eof(gv)) /* make sure we have fp with something */
693 RETPUSHUNDEF;
694 TAINT_IF(1);
695 sv_setpv(TARG, " ");
696 *SvPVX(TARG) = getc(IoIFP(GvIOp(gv))); /* should never be EOF */
697 PUSHTARG;
698 RETURN;
699}
700
701PP(pp_read)
702{
703 return pp_sysread(ARGS);
704}
705
706static OP *
707doform(cv,gv,retop)
708CV *cv;
709GV *gv;
710OP *retop;
711{
712 register CONTEXT *cx;
713 I32 gimme = GIMME;
714 AV* padlist = CvPADLIST(cv);
715 SV** svp = AvARRAY(padlist);
716
717 ENTER;
718 SAVETMPS;
719
720 push_return(retop);
721 PUSHBLOCK(cx, CXt_SUB, stack_sp);
722 PUSHFORMAT(cx);
723 SAVESPTR(curpad);
724 curpad = AvARRAY((AV*)svp[1]);
725
726 defoutgv = gv; /* locally select filehandle so $% et al work */
727 return CvSTART(cv);
728}
729
730PP(pp_enterwrite)
731{
732 dSP;
733 register GV *gv;
734 register IO *io;
735 GV *fgv;
736 CV *cv;
737
738 if (MAXARG == 0)
739 gv = defoutgv;
740 else {
741 gv = (GV*)POPs;
742 if (!gv)
743 gv = defoutgv;
744 }
745 EXTEND(SP, 1);
746 io = GvIO(gv);
747 if (!io) {
748 RETPUSHNO;
749 }
750 if (IoFMT_GV(io))
751 fgv = IoFMT_GV(io);
752 else
753 fgv = gv;
754
755 cv = GvFORM(fgv);
756
757 if (!cv) {
758 if (fgv) {
748a9306
LW		 759 SV *tmpsv = sv_newmortal();
760 gv_efullname(tmpsv, gv);
761 DIE("Undefined format \"%s\" called",SvPVX(tmpsv));
a0d0e21e
LW		 762 }
763 DIE("Not a format reference");
764 }
748a9306 765 IoFLAGS(io) &= ~IOf_DIDTOP;
a0d0e21e
LW		 766
767 return doform(cv,gv,op->op_next);
768}
769
770PP(pp_leavewrite)
771{
772 dSP;
773 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
774 register IO *io = GvIOp(gv);
775 FILE *ofp = IoOFP(io);
776 FILE *fp;
777 SV **newsp;
778 I32 gimme;
779 register CONTEXT *cx;
780
781 DEBUG_f(fprintf(stderr,"left=%ld, todo=%ld\n",
782 (long)IoLINES_LEFT(io), (long)FmLINES(formtarget)));
783 if (IoLINES_LEFT(io) < FmLINES(formtarget) &&
784 formtarget != toptarget)
785 {
786 if (!IoTOP_GV(io)) {
787 GV *topgv;
788 char tmpbuf[256];
789
790 if (!IoTOP_NAME(io)) {
791 if (!IoFMT_NAME(io))
792 IoFMT_NAME(io) = savepv(GvNAME(gv));
793 sprintf(tmpbuf, "%s_TOP", IoFMT_NAME(io));
794 topgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVFM);
748a9306 795 if ((topgv && GvFORM(topgv)) ||
a0d0e21e
LW		 796 !gv_fetchpv("top",FALSE,SVt_PVFM))
797 IoTOP_NAME(io) = savepv(tmpbuf);
798 else
799 IoTOP_NAME(io) = savepv("top");
800 }
801 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
802 if (!topgv || !GvFORM(topgv)) {
803 IoLINES_LEFT(io) = 100000000;
804 goto forget_top;
805 }
806 IoTOP_GV(io) = topgv;
807 }
748a9306
LW		 808 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
809 I32 lines = IoLINES_LEFT(io);
810 char *s = SvPVX(formtarget);
8e07c86e
AD		 811 if (lines <= 0) /* Yow, header didn't even fit!!! */
812 goto forget_top;
748a9306
LW		 813 while (lines-- > 0) {
814 s = strchr(s, '\n');
815 if (!s)
816 break;
817 s++;
818 }
819 if (s) {
820 fwrite1(SvPVX(formtarget), s - SvPVX(formtarget), 1, ofp);
821 sv_chop(formtarget, s);
822 FmLINES(formtarget) -= IoLINES_LEFT(io);
823 }
824 }
a0d0e21e
LW		 825 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
826 fwrite1(SvPVX(formfeed), SvCUR(formfeed), 1, ofp);
827 IoLINES_LEFT(io) = IoPAGE_LEN(io);
828 IoPAGE(io)++;
829 formtarget = toptarget;
748a9306 830 IoFLAGS(io) |= IOf_DIDTOP;
a0d0e21e
LW		 831 return doform(GvFORM(IoTOP_GV(io)),gv,op);
832 }
833
834 forget_top:
835 POPBLOCK(cx,curpm);
836 POPFORMAT(cx);
837 LEAVE;
838
839 fp = IoOFP(io);
840 if (!fp) {
841 if (dowarn) {
842 if (IoIFP(io))
843 warn("Filehandle only opened for input");
844 else
845 warn("Write on closed filehandle");
846 }
847 PUSHs(&sv_no);
848 }
849 else {
850 if ((IoLINES_LEFT(io) -= FmLINES(formtarget)) < 0) {
851 if (dowarn)
852 warn("page overflow");
853 }
854 if (!fwrite1(SvPVX(formtarget), 1, SvCUR(formtarget), ofp) ||
855 ferror(fp))
856 PUSHs(&sv_no);
857 else {
858 FmLINES(formtarget) = 0;
859 SvCUR_set(formtarget, 0);
748a9306 860 *SvEND(formtarget) = '\0';
a0d0e21e
LW		 861 if (IoFLAGS(io) & IOf_FLUSH)
862 (void)fflush(fp);
863 PUSHs(&sv_yes);
864 }
865 }
866 formtarget = bodytarget;
867 PUTBACK;
868 return pop_return();
869}
870
871PP(pp_prtf)
872{
873 dSP; dMARK; dORIGMARK;
874 GV *gv;
875 IO *io;
876 FILE *fp;
877 SV *sv = NEWSV(0,0);
878
879 if (op->op_flags & OPf_STACKED)
880 gv = (GV*)*++MARK;
881 else
882 gv = defoutgv;
883 if (!(io = GvIO(gv))) {
748a9306
LW		 884 if (dowarn) {
885 gv_fullname(sv,gv);
886 warn("Filehandle %s never opened", SvPV(sv,na));
887 }
888 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 889 goto just_say_no;
890 }
891 else if (!(fp = IoOFP(io))) {
892 if (dowarn) {
748a9306 893 gv_fullname(sv,gv);
a0d0e21e 894 if (IoIFP(io))
748a9306 895 warn("Filehandle %s opened only for input", SvPV(sv,na));
a0d0e21e 896 else
748a9306 897 warn("printf on closed filehandle %s", SvPV(sv,na));
a0d0e21e 898 }
748a9306 899 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 900 goto just_say_no;
901 }
902 else {
903 do_sprintf(sv, SP - MARK, MARK + 1);
904 if (!do_print(sv, fp))
905 goto just_say_no;
906
907 if (IoFLAGS(io) & IOf_FLUSH)
908 if (fflush(fp) == EOF)
909 goto just_say_no;
910 }
911 SvREFCNT_dec(sv);
912 SP = ORIGMARK;
913 PUSHs(&sv_yes);
914 RETURN;
915
916 just_say_no:
917 SvREFCNT_dec(sv);
918 SP = ORIGMARK;
919 PUSHs(&sv_undef);
920 RETURN;
921}
922
923PP(pp_sysread)
924{
925 dSP; dMARK; dORIGMARK; dTARGET;
926 int offset;
927 GV *gv;
928 IO *io;
929 char *buffer;
930 int length;
931 int bufsize;
748a9306 932 SV *bufsv;
a0d0e21e
LW		 933 STRLEN blen;
934
935 gv = (GV*)*++MARK;
936 if (!gv)
937 goto say_undef;
748a9306
LW		 938 bufsv = *++MARK;
939 buffer = SvPV_force(bufsv, blen);
a0d0e21e
LW		 940 length = SvIVx(*++MARK);
941 if (length < 0)
942 DIE("Negative length");
748a9306 943 SETERRNO(0,0);
a0d0e21e
LW		 944 if (MARK < SP)
945 offset = SvIVx(*++MARK);
946 else
947 offset = 0;
948 io = GvIO(gv);
949 if (!io || !IoIFP(io))
950 goto say_undef;
951#ifdef HAS_SOCKET
952 if (op->op_type == OP_RECV) {
953 bufsize = sizeof buf;
748a9306 954 buffer = SvGROW(bufsv, length+1);
a0d0e21e
LW		 955 length = recvfrom(fileno(IoIFP(io)), buffer, length, offset,
956 (struct sockaddr *)buf, &bufsize);
957 if (length < 0)
958 RETPUSHUNDEF;
748a9306
LW		 959 SvCUR_set(bufsv, length);
960 *SvEND(bufsv) = '\0';
961 (void)SvPOK_only(bufsv);
962 SvSETMAGIC(bufsv);
a0d0e21e 963 if (tainting)
748a9306 964 sv_magic(bufsv, Nullsv, 't', Nullch, 0);
a0d0e21e
LW		 965 SP = ORIGMARK;
966 sv_setpvn(TARG, buf, bufsize);
967 PUSHs(TARG);
968 RETURN;
969 }
970#else
971 if (op->op_type == OP_RECV)
972 DIE(no_sock_func, "recv");
973#endif
748a9306 974 buffer = SvGROW(bufsv, length+offset+1);
a0d0e21e
LW		 975 if (op->op_type == OP_SYSREAD) {
976 length = read(fileno(IoIFP(io)), buffer+offset, length);
977 }
978 else
979#ifdef HAS_SOCKET__bad_code_maybe
980 if (IoTYPE(io) == 's') {
981 bufsize = sizeof buf;
982 length = recvfrom(fileno(IoIFP(io)), buffer+offset, length, 0,
983 (struct sockaddr *)buf, &bufsize);
984 }
985 else
986#endif
987 length = fread(buffer+offset, 1, length, IoIFP(io));
988 if (length < 0)
989 goto say_undef;
748a9306
LW		 990 SvCUR_set(bufsv, length+offset);
991 *SvEND(bufsv) = '\0';
992 (void)SvPOK_only(bufsv);
993 SvSETMAGIC(bufsv);
a0d0e21e 994 if (tainting)
748a9306 995 sv_magic(bufsv, Nullsv, 't', Nullch, 0);
a0d0e21e
LW		 996 SP = ORIGMARK;
997 PUSHi(length);
998 RETURN;
999
1000 say_undef:
1001 SP = ORIGMARK;
1002 RETPUSHUNDEF;
1003}
1004
1005PP(pp_syswrite)
1006{
1007 return pp_send(ARGS);
1008}
1009
1010PP(pp_send)
1011{
1012 dSP; dMARK; dORIGMARK; dTARGET;
1013 GV *gv;
1014 IO *io;
1015 int offset;
748a9306 1016 SV *bufsv;
a0d0e21e
LW		 1017 char *buffer;
1018 int length;
1019 STRLEN blen;
1020
1021 gv = (GV*)*++MARK;
1022 if (!gv)
1023 goto say_undef;
748a9306
LW		 1024 bufsv = *++MARK;
1025 buffer = SvPV(bufsv, blen);
a0d0e21e
LW		 1026 length = SvIVx(*++MARK);
1027 if (length < 0)
1028 DIE("Negative length");
748a9306 1029 SETERRNO(0,0);
a0d0e21e
LW		 1030 io = GvIO(gv);
1031 if (!io || !IoIFP(io)) {
1032 length = -1;
1033 if (dowarn) {
1034 if (op->op_type == OP_SYSWRITE)
1035 warn("Syswrite on closed filehandle");
1036 else
1037 warn("Send on closed socket");
1038 }
1039 }
1040 else if (op->op_type == OP_SYSWRITE) {
1041 if (MARK < SP)
1042 offset = SvIVx(*++MARK);
1043 else
1044 offset = 0;
1045 if (length > blen - offset)
1046 length = blen - offset;
1047 length = write(fileno(IoIFP(io)), buffer+offset, length);
1048 }
1049#ifdef HAS_SOCKET
1050 else if (SP > MARK) {
1051 char *sockbuf;
1052 STRLEN mlen;
1053 sockbuf = SvPVx(*++MARK, mlen);
1054 length = sendto(fileno(IoIFP(io)), buffer, blen, length,
1055 (struct sockaddr *)sockbuf, mlen);
1056 }
1057 else
1058 length = send(fileno(IoIFP(io)), buffer, blen, length);
1059#else
1060 else
1061 DIE(no_sock_func, "send");
1062#endif
1063 if (length < 0)
1064 goto say_undef;
1065 SP = ORIGMARK;
1066 PUSHi(length);
1067 RETURN;
1068
1069 say_undef:
1070 SP = ORIGMARK;
1071 RETPUSHUNDEF;
1072}
1073
1074PP(pp_recv)
1075{
1076 return pp_sysread(ARGS);
1077}
1078
1079PP(pp_eof)
1080{
1081 dSP;
1082 GV *gv;
1083
1084 if (MAXARG <= 0)
1085 gv = last_in_gv;
1086 else
1087 gv = last_in_gv = (GV*)POPs;
1088 PUSHs(!gv || do_eof(gv) ? &sv_yes : &sv_no);
1089 RETURN;
1090}
1091
1092PP(pp_tell)
1093{
1094 dSP; dTARGET;
1095 GV *gv;
1096
1097 if (MAXARG <= 0)
1098 gv = last_in_gv;
1099 else
1100 gv = last_in_gv = (GV*)POPs;
1101 PUSHi( do_tell(gv) );
1102 RETURN;
1103}
1104
1105PP(pp_seek)
1106{
1107 dSP;
1108 GV *gv;
1109 int whence = POPi;
1110 long offset = POPl;
1111
1112 gv = last_in_gv = (GV*)POPs;
1113 PUSHs( do_seek(gv, offset, whence) ? &sv_yes : &sv_no );
1114 RETURN;
1115}
1116
1117PP(pp_truncate)
1118{
1119 dSP;
1120 Off_t len = (Off_t)POPn;
1121 int result = 1;
1122 GV *tmpgv;
1123
748a9306 1124 SETERRNO(0,0);
5d94fbed 1125#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
a0d0e21e
LW		 1126#ifdef HAS_TRUNCATE
1127 if (op->op_flags & OPf_SPECIAL) {
1128 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1129 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1130 ftruncate(fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1131 result = 0;
1132 }
1133 else if (truncate(POPp, len) < 0)
1134 result = 0;
1135#else
1136 if (op->op_flags & OPf_SPECIAL) {
1137 tmpgv = gv_fetchpv(POPp,FALSE, SVt_PVIO);
1138 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1139 chsize(fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1140 result = 0;
1141 }
1142 else {
1143 int tmpfd;
1144
1145 if ((tmpfd = open(POPp, 0)) < 0)
1146 result = 0;
1147 else {
1148 if (chsize(tmpfd, len) < 0)
1149 result = 0;
1150 close(tmpfd);
1151 }
1152 }
1153#endif
1154
1155 if (result)
1156 RETPUSHYES;
1157 if (!errno)
748a9306 1158 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1159 RETPUSHUNDEF;
1160#else
1161 DIE("truncate not implemented");
1162#endif
1163}
1164
1165PP(pp_fcntl)
1166{
1167 return pp_ioctl(ARGS);
1168}
1169
1170PP(pp_ioctl)
1171{
1172 dSP; dTARGET;
748a9306 1173 SV *argsv = POPs;
a0d0e21e
LW		 1174 unsigned int func = U_I(POPn);
1175 int optype = op->op_type;
1176 char *s;
1177 int retval;
1178 GV *gv = (GV*)POPs;
1179 IO *io = GvIOn(gv);
1180
748a9306
LW		 1181 if (!io || !argsv || !IoIFP(io)) {
1182 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 1183 RETPUSHUNDEF;
1184 }
1185
748a9306 1186 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 1187 STRLEN len;
748a9306 1188 s = SvPV_force(argsv, len);
a0d0e21e
LW		 1189 retval = IOCPARM_LEN(func);
1190 if (len < retval) {
748a9306
LW		 1191 s = Sv_Grow(argsv, retval+1);
1192 SvCUR_set(argsv, retval);
a0d0e21e
LW		 1193 }
1194
748a9306 1195 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 1196 }
1197 else {
748a9306 1198 retval = SvIV(argsv);
a0d0e21e
LW		 1199#ifdef DOSISH
1200 s = (char*)(long)retval; /* ouch */
1201#else
1202 s = (char*)retval; /* ouch */
1203#endif
1204 }
1205
1206 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1207
1208 if (optype == OP_IOCTL)
1209#ifdef HAS_IOCTL
1210 retval = ioctl(fileno(IoIFP(io)), func, s);
1211#else
1212 DIE("ioctl is not implemented");
1213#endif
1214 else
1215#ifdef DOSISH
1216 DIE("fcntl is not implemented");
1217#else
1218# ifdef HAS_FCNTL
1219 retval = fcntl(fileno(IoIFP(io)), func, s);
1220# else
1221 DIE("fcntl is not implemented");
1222# endif
1223#endif
1224
748a9306
LW		 1225 if (SvPOK(argsv)) {
1226 if (s[SvCUR(argsv)] != 17)
a0d0e21e
LW		 1227 DIE("Possible memory corruption: %s overflowed 3rd argument",
1228 op_name[optype]);
748a9306
LW		 1229 s[SvCUR(argsv)] = 0; /* put our null back */
1230 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 1231 }
1232
1233 if (retval == -1)
1234 RETPUSHUNDEF;
1235 if (retval != 0) {
1236 PUSHi(retval);
1237 }
1238 else {
1239 PUSHp("0 but true", 10);
1240 }
1241 RETURN;
1242}
1243
1244PP(pp_flock)
1245{
1246 dSP; dTARGET;
1247 I32 value;
1248 int argtype;
1249 GV *gv;
1250 FILE *fp;
16d20bd9
AD		 1251
1252#if !defined(HAS_FLOCK) && defined(HAS_LOCKF)
1253# define flock lockf_emulate_flock
1254#endif
1255
1256#if defined(HAS_FLOCK) || defined(flock)
a0d0e21e
LW		 1257 argtype = POPi;
1258 if (MAXARG <= 0)
1259 gv = last_in_gv;
1260 else
1261 gv = (GV*)POPs;
1262 if (gv && GvIO(gv))
1263 fp = IoIFP(GvIOp(gv));
1264 else
1265 fp = Nullfp;
1266 if (fp) {
1267 value = (I32)(flock(fileno(fp), argtype) >= 0);
1268 }
1269 else
1270 value = 0;
1271 PUSHi(value);
1272 RETURN;
1273#else
a0d0e21e 1274 DIE(no_func, "flock()");
a0d0e21e
LW		 1275#endif
1276}
1277
1278/* Sockets. */
1279
1280PP(pp_socket)
1281{
1282 dSP;
1283#ifdef HAS_SOCKET
1284 GV *gv;
1285 register IO *io;
1286 int protocol = POPi;
1287 int type = POPi;
1288 int domain = POPi;
1289 int fd;
1290
1291 gv = (GV*)POPs;
1292
1293 if (!gv) {
748a9306 1294 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 1295 RETPUSHUNDEF;
1296 }
1297
1298 io = GvIOn(gv);
1299 if (IoIFP(io))
1300 do_close(gv, FALSE);
1301
1302 TAINT_PROPER("socket");
1303 fd = socket(domain, type, protocol);
1304 if (fd < 0)
1305 RETPUSHUNDEF;
1306 IoIFP(io) = fdopen(fd, "r"); /* stdio gets confused about sockets */
1307 IoOFP(io) = fdopen(fd, "w");
1308 IoTYPE(io) = 's';
1309 if (!IoIFP(io) || !IoOFP(io)) {
1310 if (IoIFP(io)) fclose(IoIFP(io));
1311 if (IoOFP(io)) fclose(IoOFP(io));
1312 if (!IoIFP(io) && !IoOFP(io)) close(fd);
1313 RETPUSHUNDEF;
1314 }
1315
1316 RETPUSHYES;
1317#else
1318 DIE(no_sock_func, "socket");
1319#endif
1320}
1321
1322PP(pp_sockpair)
1323{
1324 dSP;
1325#ifdef HAS_SOCKETPAIR
1326 GV *gv1;
1327 GV *gv2;
1328 register IO *io1;
1329 register IO *io2;
1330 int protocol = POPi;
1331 int type = POPi;
1332 int domain = POPi;
1333 int fd[2];
1334
1335 gv2 = (GV*)POPs;
1336 gv1 = (GV*)POPs;
1337 if (!gv1 || !gv2)
1338 RETPUSHUNDEF;
1339
1340 io1 = GvIOn(gv1);
1341 io2 = GvIOn(gv2);
1342 if (IoIFP(io1))
1343 do_close(gv1, FALSE);
1344 if (IoIFP(io2))
1345 do_close(gv2, FALSE);
1346
1347 TAINT_PROPER("socketpair");
1348 if (socketpair(domain, type, protocol, fd) < 0)
1349 RETPUSHUNDEF;
1350 IoIFP(io1) = fdopen(fd[0], "r");
1351 IoOFP(io1) = fdopen(fd[0], "w");
1352 IoTYPE(io1) = 's';
1353 IoIFP(io2) = fdopen(fd[1], "r");
1354 IoOFP(io2) = fdopen(fd[1], "w");
1355 IoTYPE(io2) = 's';
1356 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
1357 if (IoIFP(io1)) fclose(IoIFP(io1));
1358 if (IoOFP(io1)) fclose(IoOFP(io1));
1359 if (!IoIFP(io1) && !IoOFP(io1)) close(fd[0]);
1360 if (IoIFP(io2)) fclose(IoIFP(io2));
1361 if (IoOFP(io2)) fclose(IoOFP(io2));
1362 if (!IoIFP(io2) && !IoOFP(io2)) close(fd[1]);
1363 RETPUSHUNDEF;
1364 }
1365
1366 RETPUSHYES;
1367#else
1368 DIE(no_sock_func, "socketpair");
1369#endif
1370}
1371
1372PP(pp_bind)
1373{
1374 dSP;
1375#ifdef HAS_SOCKET
748a9306 1376 SV *addrsv = POPs;
a0d0e21e
LW		 1377 char *addr;
1378 GV *gv = (GV*)POPs;
1379 register IO *io = GvIOn(gv);
1380 STRLEN len;
1381
1382 if (!io || !IoIFP(io))
1383 goto nuts;
1384
748a9306 1385 addr = SvPV(addrsv, len);
a0d0e21e
LW		 1386 TAINT_PROPER("bind");
1387 if (bind(fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1388 RETPUSHYES;
1389 else
1390 RETPUSHUNDEF;
1391
1392nuts:
1393 if (dowarn)
1394 warn("bind() on closed fd");
748a9306 1395 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1396 RETPUSHUNDEF;
1397#else
1398 DIE(no_sock_func, "bind");
1399#endif
1400}
1401
1402PP(pp_connect)
1403{
1404 dSP;
1405#ifdef HAS_SOCKET
748a9306 1406 SV *addrsv = POPs;
a0d0e21e
LW		 1407 char *addr;
1408 GV *gv = (GV*)POPs;
1409 register IO *io = GvIOn(gv);
1410 STRLEN len;
1411
1412 if (!io || !IoIFP(io))
1413 goto nuts;
1414
748a9306 1415 addr = SvPV(addrsv, len);
a0d0e21e
LW		 1416 TAINT_PROPER("connect");
1417 if (connect(fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
1418 RETPUSHYES;
1419 else
1420 RETPUSHUNDEF;
1421
1422nuts:
1423 if (dowarn)
1424 warn("connect() on closed fd");
748a9306 1425 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1426 RETPUSHUNDEF;
1427#else
1428 DIE(no_sock_func, "connect");
1429#endif
1430}
1431
1432PP(pp_listen)
1433{
1434 dSP;
1435#ifdef HAS_SOCKET
1436 int backlog = POPi;
1437 GV *gv = (GV*)POPs;
1438 register IO *io = GvIOn(gv);
1439
1440 if (!io || !IoIFP(io))
1441 goto nuts;
1442
1443 if (listen(fileno(IoIFP(io)), backlog) >= 0)
1444 RETPUSHYES;
1445 else
1446 RETPUSHUNDEF;
1447
1448nuts:
1449 if (dowarn)
1450 warn("listen() on closed fd");
748a9306 1451 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1452 RETPUSHUNDEF;
1453#else
1454 DIE(no_sock_func, "listen");
1455#endif
1456}
1457
1458PP(pp_accept)
1459{
1460 dSP; dTARGET;
1461#ifdef HAS_SOCKET
8e07c86e 1462 struct sockaddr_in saddr; /* use a struct to avoid alignment problems */
a0d0e21e
LW		 1463 GV *ngv;
1464 GV *ggv;
1465 register IO *nstio;
1466 register IO *gstio;
748a9306 1467 int len = sizeof saddr;
a0d0e21e
LW		 1468 int fd;
1469
1470 ggv = (GV*)POPs;
1471 ngv = (GV*)POPs;
1472
1473 if (!ngv)
1474 goto badexit;
1475 if (!ggv)
1476 goto nuts;
1477
1478 gstio = GvIO(ggv);
1479 if (!gstio || !IoIFP(gstio))
1480 goto nuts;
1481
1482 nstio = GvIOn(ngv);
1483 if (IoIFP(nstio))
1484 do_close(ngv, FALSE);
1485
748a9306 1486 fd = accept(fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 1487 if (fd < 0)
1488 goto badexit;
1489 IoIFP(nstio) = fdopen(fd, "r");
1490 IoOFP(nstio) = fdopen(fd, "w");
1491 IoTYPE(nstio) = 's';
1492 if (!IoIFP(nstio) || !IoOFP(nstio)) {
1493 if (IoIFP(nstio)) fclose(IoIFP(nstio));
1494 if (IoOFP(nstio)) fclose(IoOFP(nstio));
1495 if (!IoIFP(nstio) && !IoOFP(nstio)) close(fd);
1496 goto badexit;
1497 }
1498
748a9306 1499 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 1500 RETURN;
1501
1502nuts:
1503 if (dowarn)
1504 warn("accept() on closed fd");
748a9306 1505 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1506
1507badexit:
1508 RETPUSHUNDEF;
1509
1510#else
1511 DIE(no_sock_func, "accept");
1512#endif
1513}
1514
1515PP(pp_shutdown)
1516{
1517 dSP; dTARGET;
1518#ifdef HAS_SOCKET
1519 int how = POPi;
1520 GV *gv = (GV*)POPs;
1521 register IO *io = GvIOn(gv);
1522
1523 if (!io || !IoIFP(io))
1524 goto nuts;
1525
1526 PUSHi( shutdown(fileno(IoIFP(io)), how) >= 0 );
1527 RETURN;
1528
1529nuts:
1530 if (dowarn)
1531 warn("shutdown() on closed fd");
748a9306 1532 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1533 RETPUSHUNDEF;
1534#else
1535 DIE(no_sock_func, "shutdown");
1536#endif
1537}
1538
1539PP(pp_gsockopt)
1540{
1541#ifdef HAS_SOCKET
1542 return pp_ssockopt(ARGS);
1543#else
1544 DIE(no_sock_func, "getsockopt");
1545#endif
1546}
1547
1548PP(pp_ssockopt)
1549{
1550 dSP;
1551#ifdef HAS_SOCKET
1552 int optype = op->op_type;
1553 SV *sv;
1554 int fd;
1555 unsigned int optname;
1556 unsigned int lvl;
1557 GV *gv;
1558 register IO *io;
748a9306 1559 int aint;
a0d0e21e
LW		 1560
1561 if (optype == OP_GSOCKOPT)
1562 sv = sv_2mortal(NEWSV(22, 257));
1563 else
1564 sv = POPs;
1565 optname = (unsigned int) POPi;
1566 lvl = (unsigned int) POPi;
1567
1568 gv = (GV*)POPs;
1569 io = GvIOn(gv);
1570 if (!io || !IoIFP(io))
1571 goto nuts;
1572
1573 fd = fileno(IoIFP(io));
1574 switch (optype) {
1575 case OP_GSOCKOPT:
748a9306 1576 SvGROW(sv, 257);
a0d0e21e 1577 (void)SvPOK_only(sv);
748a9306
LW		 1578 SvCUR_set(sv,256);
1579 *SvEND(sv) ='\0';
1580 aint = SvCUR(sv);
1581 if (getsockopt(fd, lvl, optname, SvPVX(sv), &aint) < 0)
a0d0e21e 1582 goto nuts2;
748a9306
LW		 1583 SvCUR_set(sv,aint);
1584 *SvEND(sv) ='\0';
a0d0e21e
LW		 1585 PUSHs(sv);
1586 break;
1587 case OP_SSOCKOPT: {
a0d0e21e
LW		 1588 STRLEN len = 0;
1589 char *buf = 0;
1590 if (SvPOKp(sv))
1591 buf = SvPV(sv, len);
1592 else if (SvOK(sv)) {
1593 aint = (int)SvIV(sv);
1594 buf = (char*)&aint;
1595 len = sizeof(int);
1596 }
1597 if (setsockopt(fd, lvl, optname, buf, (int)len) < 0)
1598 goto nuts2;
1599 PUSHs(&sv_yes);
1600 }
1601 break;
1602 }
1603 RETURN;
1604
1605nuts:
1606 if (dowarn)
1607 warn("[gs]etsockopt() on closed fd");
748a9306 1608 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1609nuts2:
1610 RETPUSHUNDEF;
1611
1612#else
1613 DIE(no_sock_func, "setsockopt");
1614#endif
1615}
1616
1617PP(pp_getsockname)
1618{
1619#ifdef HAS_SOCKET
1620 return pp_getpeername(ARGS);
1621#else
1622 DIE(no_sock_func, "getsockname");
1623#endif
1624}
1625
1626PP(pp_getpeername)
1627{
1628 dSP;
1629#ifdef HAS_SOCKET
1630 int optype = op->op_type;
1631 SV *sv;
1632 int fd;
1633 GV *gv = (GV*)POPs;
1634 register IO *io = GvIOn(gv);
748a9306 1635 int aint;
a0d0e21e
LW		 1636
1637 if (!io || !IoIFP(io))
1638 goto nuts;
1639
1640 sv = sv_2mortal(NEWSV(22, 257));
748a9306
LW		 1641 (void)SvPOK_only(sv);
1642 SvCUR_set(sv,256);
1643 *SvEND(sv) ='\0';
1644 aint = SvCUR(sv);
a0d0e21e
LW		 1645 fd = fileno(IoIFP(io));
1646 switch (optype) {
1647 case OP_GETSOCKNAME:
748a9306 1648 if (getsockname(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
a0d0e21e
LW		 1649 goto nuts2;
1650 break;
1651 case OP_GETPEERNAME:
748a9306 1652 if (getpeername(fd, (struct sockaddr *)SvPVX(sv), &aint) < 0)
a0d0e21e
LW		 1653 goto nuts2;
1654 break;
1655 }
748a9306
LW		 1656 SvCUR_set(sv,aint);
1657 *SvEND(sv) ='\0';
a0d0e21e
LW		 1658 PUSHs(sv);
1659 RETURN;
1660
1661nuts:
1662 if (dowarn)
1663 warn("get{sock, peer}name() on closed fd");
748a9306 1664 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 1665nuts2:
1666 RETPUSHUNDEF;
1667
1668#else
1669 DIE(no_sock_func, "getpeername");
1670#endif
1671}
1672
1673/* Stat calls. */
1674
1675PP(pp_lstat)
1676{
1677 return pp_stat(ARGS);
1678}
1679
1680PP(pp_stat)
1681{
1682 dSP;
1683 GV *tmpgv;
1684 I32 max = 13;
1685
1686 if (op->op_flags & OPf_REF) {
1687 tmpgv = cGVOP->op_gv;
748a9306 1688 do_fstat:
a0d0e21e
LW		 1689 if (tmpgv != defgv) {
1690 laststype = OP_STAT;
1691 statgv = tmpgv;
1692 sv_setpv(statname, "");
1693 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)) ||
1694 Fstat(fileno(IoIFP(GvIOn(tmpgv))), &statcache) < 0) {
1695 max = 0;
1696 laststatval = -1;
1697 }
1698 }
1699 else if (laststatval < 0)
1700 max = 0;
1701 }
1702 else {
748a9306
LW		 1703 SV* sv = POPs;
1704 if (SvTYPE(sv) == SVt_PVGV) {
1705 tmpgv = (GV*)sv;
1706 goto do_fstat;
1707 }
1708 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1709 tmpgv = (GV*)SvRV(sv);
1710 goto do_fstat;
1711 }
1712 sv_setpv(statname, SvPV(sv,na));
a0d0e21e
LW		 1713 statgv = Nullgv;
1714#ifdef HAS_LSTAT
1715 laststype = op->op_type;
1716 if (op->op_type == OP_LSTAT)
1717 laststatval = lstat(SvPV(statname, na), &statcache);
1718 else
1719#endif
1720 laststatval = Stat(SvPV(statname, na), &statcache);
1721 if (laststatval < 0) {
1722 if (dowarn && strchr(SvPV(statname, na), '\n'))
1723 warn(warn_nl, "stat");
1724 max = 0;
1725 }
1726 }
1727
1728 EXTEND(SP, 13);
1729 if (GIMME != G_ARRAY) {
1730 if (max)
1731 RETPUSHYES;
1732 else
1733 RETPUSHUNDEF;
1734 }
1735 if (max) {
1736 PUSHs(sv_2mortal(newSViv((I32)statcache.st_dev)));
1737 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ino)));
1738 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mode)));
1739 PUSHs(sv_2mortal(newSViv((I32)statcache.st_nlink)));
1740 PUSHs(sv_2mortal(newSViv((I32)statcache.st_uid)));
1741 PUSHs(sv_2mortal(newSViv((I32)statcache.st_gid)));
1742 PUSHs(sv_2mortal(newSViv((I32)statcache.st_rdev)));
1743 PUSHs(sv_2mortal(newSViv((I32)statcache.st_size)));
1744 PUSHs(sv_2mortal(newSViv((I32)statcache.st_atime)));
1745 PUSHs(sv_2mortal(newSViv((I32)statcache.st_mtime)));
1746 PUSHs(sv_2mortal(newSViv((I32)statcache.st_ctime)));
1747#ifdef USE_STAT_BLOCKS
1748 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blksize)));
1749 PUSHs(sv_2mortal(newSViv((I32)statcache.st_blocks)));
1750#else
1751 PUSHs(sv_2mortal(newSVpv("", 0)));
1752 PUSHs(sv_2mortal(newSVpv("", 0)));
1753#endif
1754 }
1755 RETURN;
1756}
1757
1758PP(pp_ftrread)
1759{
1760 I32 result = my_stat(ARGS);
1761 dSP;
1762 if (result < 0)
1763 RETPUSHUNDEF;
1764 if (cando(S_IRUSR, 0, &statcache))
1765 RETPUSHYES;
1766 RETPUSHNO;
1767}
1768
1769PP(pp_ftrwrite)
1770{
1771 I32 result = my_stat(ARGS);
1772 dSP;
1773 if (result < 0)
1774 RETPUSHUNDEF;
1775 if (cando(S_IWUSR, 0, &statcache))
1776 RETPUSHYES;
1777 RETPUSHNO;
1778}
1779
1780PP(pp_ftrexec)
1781{
1782 I32 result = my_stat(ARGS);
1783 dSP;
1784 if (result < 0)
1785 RETPUSHUNDEF;
1786 if (cando(S_IXUSR, 0, &statcache))
1787 RETPUSHYES;
1788 RETPUSHNO;
1789}
1790
1791PP(pp_fteread)
1792{
1793 I32 result = my_stat(ARGS);
1794 dSP;
1795 if (result < 0)
1796 RETPUSHUNDEF;
1797 if (cando(S_IRUSR, 1, &statcache))
1798 RETPUSHYES;
1799 RETPUSHNO;
1800}
1801
1802PP(pp_ftewrite)
1803{
1804 I32 result = my_stat(ARGS);
1805 dSP;
1806 if (result < 0)
1807 RETPUSHUNDEF;
1808 if (cando(S_IWUSR, 1, &statcache))
1809 RETPUSHYES;
1810 RETPUSHNO;
1811}
1812
1813PP(pp_fteexec)
1814{
1815 I32 result = my_stat(ARGS);
1816 dSP;
1817 if (result < 0)
1818 RETPUSHUNDEF;
1819 if (cando(S_IXUSR, 1, &statcache))
1820 RETPUSHYES;
1821 RETPUSHNO;
1822}
1823
1824PP(pp_ftis)
1825{
1826 I32 result = my_stat(ARGS);
1827 dSP;
1828 if (result < 0)
1829 RETPUSHUNDEF;
1830 RETPUSHYES;
1831}
1832
1833PP(pp_fteowned)
1834{
1835 return pp_ftrowned(ARGS);
1836}
1837
1838PP(pp_ftrowned)
1839{
1840 I32 result = my_stat(ARGS);
1841 dSP;
1842 if (result < 0)
1843 RETPUSHUNDEF;
1844 if (statcache.st_uid == (op->op_type == OP_FTEOWNED ? euid : uid) )
1845 RETPUSHYES;
1846 RETPUSHNO;
1847}
1848
1849PP(pp_ftzero)
1850{
1851 I32 result = my_stat(ARGS);
1852 dSP;
1853 if (result < 0)
1854 RETPUSHUNDEF;
1855 if (!statcache.st_size)
1856 RETPUSHYES;
1857 RETPUSHNO;
1858}
1859
1860PP(pp_ftsize)
1861{
1862 I32 result = my_stat(ARGS);
1863 dSP; dTARGET;
1864 if (result < 0)
1865 RETPUSHUNDEF;
1866 PUSHi(statcache.st_size);
1867 RETURN;
1868}
1869
1870PP(pp_ftmtime)
1871{
1872 I32 result = my_stat(ARGS);
1873 dSP; dTARGET;
1874 if (result < 0)
1875 RETPUSHUNDEF;
1876 PUSHn( (basetime - statcache.st_mtime) / 86400.0 );
1877 RETURN;
1878}
1879
1880PP(pp_ftatime)
1881{
1882 I32 result = my_stat(ARGS);
1883 dSP; dTARGET;
1884 if (result < 0)
1885 RETPUSHUNDEF;
1886 PUSHn( (basetime - statcache.st_atime) / 86400.0 );
1887 RETURN;
1888}
1889
1890PP(pp_ftctime)
1891{
1892 I32 result = my_stat(ARGS);
1893 dSP; dTARGET;
1894 if (result < 0)
1895 RETPUSHUNDEF;
1896 PUSHn( (basetime - statcache.st_ctime) / 86400.0 );
1897 RETURN;
1898}
1899
1900PP(pp_ftsock)
1901{
1902 I32 result = my_stat(ARGS);
1903 dSP;
1904 if (result < 0)
1905 RETPUSHUNDEF;
1906 if (S_ISSOCK(statcache.st_mode))
1907 RETPUSHYES;
1908 RETPUSHNO;
1909}
1910
1911PP(pp_ftchr)
1912{
1913 I32 result = my_stat(ARGS);
1914 dSP;
1915 if (result < 0)
1916 RETPUSHUNDEF;
1917 if (S_ISCHR(statcache.st_mode))
1918 RETPUSHYES;
1919 RETPUSHNO;
1920}
1921
1922PP(pp_ftblk)
1923{
1924 I32 result = my_stat(ARGS);
1925 dSP;
1926 if (result < 0)
1927 RETPUSHUNDEF;
1928 if (S_ISBLK(statcache.st_mode))
1929 RETPUSHYES;
1930 RETPUSHNO;
1931}
1932
1933PP(pp_ftfile)
1934{
1935 I32 result = my_stat(ARGS);
1936 dSP;
1937 if (result < 0)
1938 RETPUSHUNDEF;
1939 if (S_ISREG(statcache.st_mode))
1940 RETPUSHYES;
1941 RETPUSHNO;
1942}
1943
1944PP(pp_ftdir)
1945{
1946 I32 result = my_stat(ARGS);
1947 dSP;
1948 if (result < 0)
1949 RETPUSHUNDEF;
1950 if (S_ISDIR(statcache.st_mode))
1951 RETPUSHYES;
1952 RETPUSHNO;
1953}
1954
1955PP(pp_ftpipe)
1956{
1957 I32 result = my_stat(ARGS);
1958 dSP;
1959 if (result < 0)
1960 RETPUSHUNDEF;
1961 if (S_ISFIFO(statcache.st_mode))
1962 RETPUSHYES;
1963 RETPUSHNO;
1964}
1965
1966PP(pp_ftlink)
1967{
1968 I32 result = my_lstat(ARGS);
1969 dSP;
1970 if (result < 0)
1971 RETPUSHUNDEF;
1972 if (S_ISLNK(statcache.st_mode))
1973 RETPUSHYES;
1974 RETPUSHNO;
1975}
1976
1977PP(pp_ftsuid)
1978{
1979 dSP;
1980#ifdef S_ISUID
1981 I32 result = my_stat(ARGS);
1982 SPAGAIN;
1983 if (result < 0)
1984 RETPUSHUNDEF;
1985 if (statcache.st_mode & S_ISUID)
1986 RETPUSHYES;
1987#endif
1988 RETPUSHNO;
1989}
1990
1991PP(pp_ftsgid)
1992{
1993 dSP;
1994#ifdef S_ISGID
1995 I32 result = my_stat(ARGS);
1996 SPAGAIN;
1997 if (result < 0)
1998 RETPUSHUNDEF;
1999 if (statcache.st_mode & S_ISGID)
2000 RETPUSHYES;
2001#endif
2002 RETPUSHNO;
2003}
2004
2005PP(pp_ftsvtx)
2006{
2007 dSP;
2008#ifdef S_ISVTX
2009 I32 result = my_stat(ARGS);
2010 SPAGAIN;
2011 if (result < 0)
2012 RETPUSHUNDEF;
2013 if (statcache.st_mode & S_ISVTX)
2014 RETPUSHYES;
2015#endif
2016 RETPUSHNO;
2017}
2018
2019PP(pp_fttty)
2020{
2021 dSP;
2022 int fd;
2023 GV *gv;
2024 char *tmps;
2025 if (op->op_flags & OPf_REF) {
2026 gv = cGVOP->op_gv;
2027 tmps = "";
2028 }
2029 else
2030 gv = gv_fetchpv(tmps = POPp, FALSE, SVt_PVIO);
2031 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2032 fd = fileno(IoIFP(GvIOp(gv)));
2033 else if (isDIGIT(*tmps))
2034 fd = atoi(tmps);
2035 else
2036 RETPUSHUNDEF;
2037 if (isatty(fd))
2038 RETPUSHYES;
2039 RETPUSHNO;
2040}
2041
16d20bd9
AD		 2042#if defined(atarist) /* this will work with atariST. Configure will
2043 make guesses for other systems. */
2044# define FILE_base(f) ((f)->_base)
2045# define FILE_ptr(f) ((f)->_ptr)
2046# define FILE_cnt(f) ((f)->_cnt)
2047# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 2048#endif
2049
2050PP(pp_fttext)
2051{
2052 dSP;
2053 I32 i;
2054 I32 len;
2055 I32 odd = 0;
2056 STDCHAR tbuf[512];
2057 register STDCHAR *s;
2058 register IO *io;
2059 SV *sv;
2060
2061 if (op->op_flags & OPf_REF) {
2062 EXTEND(SP, 1);
2063 if (cGVOP->op_gv == defgv) {
2064 if (statgv)
2065 io = GvIO(statgv);
2066 else {
2067 sv = statname;
2068 goto really_filename;
2069 }
2070 }
2071 else {
2072 statgv = cGVOP->op_gv;
2073 sv_setpv(statname, "");
2074 io = GvIO(statgv);
2075 }
2076 if (io && IoIFP(io)) {
16d20bd9 2077#ifdef FILE_base
a0d0e21e
LW		 2078 Fstat(fileno(IoIFP(io)), &statcache);
2079 if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */
2080 if (op->op_type == OP_FTTEXT)
2081 RETPUSHNO;
2082 else
2083 RETPUSHYES;
16d20bd9 2084 if (FILE_cnt(IoIFP(io)) <= 0) {
a0d0e21e
LW		 2085 i = getc(IoIFP(io));
2086 if (i != EOF)
2087 (void)ungetc(i, IoIFP(io));
2088 }
16d20bd9 2089 if (FILE_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 2090 RETPUSHYES;
16d20bd9
AD		 2091 len = FILE_bufsiz(IoIFP(io));
2092 s = FILE_base(IoIFP(io));
a0d0e21e
LW		 2093#else
2094 DIE("-T and -B not implemented on filehandles");
2095#endif
2096 }
2097 else {
2098 if (dowarn)
2099 warn("Test on unopened file <%s>",
2100 GvENAME(cGVOP->op_gv));
748a9306 2101 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2102 RETPUSHUNDEF;
2103 }
2104 }
2105 else {
2106 sv = POPs;
2107 statgv = Nullgv;
2108 sv_setpv(statname, SvPV(sv, na));
2109 really_filename:
2110#ifdef HAS_OPEN3
2111 i = open(SvPV(sv, na), O_RDONLY, 0);
2112#else
2113 i = open(SvPV(sv, na), 0);
2114#endif
2115 if (i < 0) {
2116 if (dowarn && strchr(SvPV(sv, na), '\n'))
2117 warn(warn_nl, "open");
2118 RETPUSHUNDEF;
2119 }
2120 Fstat(i, &statcache);
2121 len = read(i, tbuf, 512);
2122 (void)close(i);
2123 if (len <= 0) {
2124 if (S_ISDIR(statcache.st_mode) && op->op_type == OP_FTTEXT)
2125 RETPUSHNO; /* special case NFS directories */
2126 RETPUSHYES; /* null file is anything */
2127 }
2128 s = tbuf;
2129 }
2130
2131 /* now scan s to look for textiness */
2132
2133 for (i = 0; i < len; i++, s++) {
2134 if (!*s) { /* null never allowed in text */
2135 odd += len;
2136 break;
2137 }
2138 else if (*s & 128)
2139 odd++;
2140 else if (*s < 32 &&
2141 *s != '\n' && *s != '\r' && *s != '\b' &&
2142 *s != '\t' && *s != '\f' && *s != 27)
2143 odd++;
2144 }
2145
2146 if ((odd * 30 > len) == (op->op_type == OP_FTTEXT)) /* allow 30% odd */
2147 RETPUSHNO;
2148 else
2149 RETPUSHYES;
2150}
2151
2152PP(pp_ftbinary)
2153{
2154 return pp_fttext(ARGS);
2155}
2156
2157/* File calls. */
2158
2159PP(pp_chdir)
2160{
2161 dSP; dTARGET;
2162 char *tmps;
2163 SV **svp;
2164
2165 if (MAXARG < 1)
2166 tmps = Nullch;
2167 else
2168 tmps = POPp;
2169 if (!tmps || !*tmps) {
2170 svp = hv_fetch(GvHVn(envgv), "HOME", 4, FALSE);
2171 if (svp)
2172 tmps = SvPV(*svp, na);
2173 }
2174 if (!tmps || !*tmps) {
2175 svp = hv_fetch(GvHVn(envgv), "LOGDIR", 6, FALSE);
2176 if (svp)
2177 tmps = SvPV(*svp, na);
2178 }
2179 TAINT_PROPER("chdir");
2180 PUSHi( chdir(tmps) >= 0 );
748a9306
LW		 2181#ifdef VMS
2182 /* Clear the DEFAULT element of ENV so we'll get the new value
2183 * in the future. */
2184 hv_delete(GvHVn(envgv),"DEFAULT",7);
2185#endif
a0d0e21e
LW		 2186 RETURN;
2187}
2188
2189PP(pp_chown)
2190{
2191 dSP; dMARK; dTARGET;
2192 I32 value;
2193#ifdef HAS_CHOWN
2194 value = (I32)apply(op->op_type, MARK, SP);
2195 SP = MARK;
2196 PUSHi(value);
2197 RETURN;
2198#else
2199 DIE(no_func, "Unsupported function chown");
2200#endif
2201}
2202
2203PP(pp_chroot)
2204{
2205 dSP; dTARGET;
2206 char *tmps;
2207#ifdef HAS_CHROOT
2208 tmps = POPp;
2209 TAINT_PROPER("chroot");
2210 PUSHi( chroot(tmps) >= 0 );
2211 RETURN;
2212#else
2213 DIE(no_func, "chroot");
2214#endif
2215}
2216
2217PP(pp_unlink)
2218{
2219 dSP; dMARK; dTARGET;
2220 I32 value;
2221 value = (I32)apply(op->op_type, MARK, SP);
2222 SP = MARK;
2223 PUSHi(value);
2224 RETURN;
2225}
2226
2227PP(pp_chmod)
2228{
2229 dSP; dMARK; dTARGET;
2230 I32 value;
2231 value = (I32)apply(op->op_type, MARK, SP);
2232 SP = MARK;
2233 PUSHi(value);
2234 RETURN;
2235}
2236
2237PP(pp_utime)
2238{
2239 dSP; dMARK; dTARGET;
2240 I32 value;
2241 value = (I32)apply(op->op_type, MARK, SP);
2242 SP = MARK;
2243 PUSHi(value);
2244 RETURN;
2245}
2246
2247PP(pp_rename)
2248{
2249 dSP; dTARGET;
2250 int anum;
2251
2252 char *tmps2 = POPp;
2253 char *tmps = SvPV(TOPs, na);
2254 TAINT_PROPER("rename");
2255#ifdef HAS_RENAME
2256 anum = rename(tmps, tmps2);
2257#else
2258 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
2259 anum = 1;
2260 else {
2261 if (euid || Stat(tmps2, &statbuf) < 0 || !S_ISDIR(statbuf.st_mode))
2262 (void)UNLINK(tmps2);
2263 if (!(anum = link(tmps, tmps2)))
2264 anum = UNLINK(tmps);
2265 }
2266#endif
2267 SETi( anum >= 0 );
2268 RETURN;
2269}
2270
2271PP(pp_link)
2272{
2273 dSP; dTARGET;
2274#ifdef HAS_LINK
2275 char *tmps2 = POPp;
2276 char *tmps = SvPV(TOPs, na);
2277 TAINT_PROPER("link");
2278 SETi( link(tmps, tmps2) >= 0 );
2279#else
2280 DIE(no_func, "Unsupported function link");
2281#endif
2282 RETURN;
2283}
2284
2285PP(pp_symlink)
2286{
2287 dSP; dTARGET;
2288#ifdef HAS_SYMLINK
2289 char *tmps2 = POPp;
2290 char *tmps = SvPV(TOPs, na);
2291 TAINT_PROPER("symlink");
2292 SETi( symlink(tmps, tmps2) >= 0 );
2293 RETURN;
2294#else
2295 DIE(no_func, "symlink");
2296#endif
2297}
2298
2299PP(pp_readlink)
2300{
2301 dSP; dTARGET;
2302#ifdef HAS_SYMLINK
2303 char *tmps;
2304 int len;
2305 tmps = POPp;
2306 len = readlink(tmps, buf, sizeof buf);
2307 EXTEND(SP, 1);
2308 if (len < 0)
2309 RETPUSHUNDEF;
2310 PUSHp(buf, len);
2311 RETURN;
2312#else
2313 EXTEND(SP, 1);
2314 RETSETUNDEF; /* just pretend it's a normal file */
2315#endif
2316}
2317
2318#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
2319static int
2320dooneliner(cmd, filename)
2321char *cmd;
2322char *filename;
2323{
2324 char mybuf[8192];
16d20bd9 2325 char *s,
5d94fbed 2326 *save_filename = filename;
a0d0e21e
LW		 2327 int anum = 1;
2328 FILE *myfp;
2329
2330 strcpy(mybuf, cmd);
2331 strcat(mybuf, " ");
2332 for (s = mybuf+strlen(mybuf); *filename; ) {
2333 *s++ = '\\';
2334 *s++ = *filename++;
2335 }
2336 strcpy(s, " 2>&1");
2337 myfp = my_popen(mybuf, "r");
2338 if (myfp) {
2339 *mybuf = '\0';
2340 s = fgets(mybuf, sizeof mybuf, myfp);
2341 (void)my_pclose(myfp);
2342 if (s != Nullch) {
2343 for (errno = 1; errno < sys_nerr; errno++) {
2344#ifdef HAS_SYS_ERRLIST
2345 if (instr(mybuf, sys_errlist[errno])) /* you don't see this */
2346 return 0;
2347#else
2348 char *errmsg; /* especially if it isn't there */
2349
2350 if (instr(mybuf,
2351 (errmsg = strerror(errno)) ? errmsg : "NoErRoR"))
2352 return 0;
2353#endif
2354 }
748a9306 2355 SETERRNO(0,0);
a0d0e21e
LW		 2356#ifndef EACCES
2357#define EACCES EPERM
2358#endif
2359 if (instr(mybuf, "cannot make"))
748a9306 2360 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2361 else if (instr(mybuf, "existing file"))
748a9306 2362 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2363 else if (instr(mybuf, "ile exists"))
748a9306 2364 SETERRNO(EEXIST,RMS$_FEX);
a0d0e21e 2365 else if (instr(mybuf, "non-exist"))
748a9306 2366 SETERRNO(ENOENT,RMS$_FNF);
a0d0e21e 2367 else if (instr(mybuf, "does not exist"))
748a9306 2368 SETERRNO(ENOENT,RMS$_FNF);
a0d0e21e 2369 else if (instr(mybuf, "not empty"))
748a9306 2370 SETERRNO(EBUSY,SS$_DEVOFFLINE);
a0d0e21e 2371 else if (instr(mybuf, "cannot access"))
748a9306 2372 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 2373 else
748a9306 2374 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 2375 return 0;
2376 }
2377 else { /* some mkdirs return no failure indication */
5d94fbed 2378 anum = (Stat(save_filename, &statbuf) >= 0);
a0d0e21e
LW		 2379 if (op->op_type == OP_RMDIR)
2380 anum = !anum;
2381 if (anum)
748a9306 2382 SETERRNO(0,0);
a0d0e21e 2383 else
748a9306 2384 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 2385 }
2386 return anum;
2387 }
2388 else
2389 return 0;
2390}
2391#endif
2392
2393PP(pp_mkdir)
2394{
2395 dSP; dTARGET;
2396 int mode = POPi;
2397#ifndef HAS_MKDIR
2398 int oldumask;
2399#endif
2400 char *tmps = SvPV(TOPs, na);
2401
2402 TAINT_PROPER("mkdir");
2403#ifdef HAS_MKDIR
2404 SETi( mkdir(tmps, mode) >= 0 );
2405#else
2406 SETi( dooneliner("mkdir", tmps) );
2407 oldumask = umask(0);
2408 umask(oldumask);
2409 chmod(tmps, (mode & ~oldumask) & 0777);
2410#endif
2411 RETURN;
2412}
2413
2414PP(pp_rmdir)
2415{
2416 dSP; dTARGET;
2417 char *tmps;
2418
2419 tmps = POPp;
2420 TAINT_PROPER("rmdir");
2421#ifdef HAS_RMDIR
2422 XPUSHi( rmdir(tmps) >= 0 );
2423#else
2424 XPUSHi( dooneliner("rmdir", tmps) );
2425#endif
2426 RETURN;
2427}
2428
2429/* Directory calls. */
2430
2431PP(pp_open_dir)
2432{
2433 dSP;
2434#if defined(Direntry_t) && defined(HAS_READDIR)
2435 char *dirname = POPp;
2436 GV *gv = (GV*)POPs;
2437 register IO *io = GvIOn(gv);
2438
2439 if (!io)
2440 goto nope;
2441
2442 if (IoDIRP(io))
2443 closedir(IoDIRP(io));
2444 if (!(IoDIRP(io) = opendir(dirname)))
2445 goto nope;
2446
2447 RETPUSHYES;
2448nope:
2449 if (!errno)
748a9306 2450 SETERRNO(EBADF,RMS$_DIR);
a0d0e21e
LW		 2451 RETPUSHUNDEF;
2452#else
2453 DIE(no_dir_func, "opendir");
2454#endif
2455}
2456
2457PP(pp_readdir)
2458{
2459 dSP;
2460#if defined(Direntry_t) && defined(HAS_READDIR)
2461#ifndef I_DIRENT
2462 Direntry_t *readdir _((DIR *));
2463#endif
2464 register Direntry_t *dp;
2465 GV *gv = (GV*)POPs;
2466 register IO *io = GvIOn(gv);
2467
2468 if (!io || !IoDIRP(io))
2469 goto nope;
2470
2471 if (GIMME == G_ARRAY) {
2472 /*SUPPRESS 560*/
2473 while (dp = (Direntry_t *)readdir(IoDIRP(io))) {
2474#ifdef DIRNAMLEN
2475 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2476#else
2477 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2478#endif
2479 }
2480 }
2481 else {
2482 if (!(dp = (Direntry_t *)readdir(IoDIRP(io))))
2483 goto nope;
2484#ifdef DIRNAMLEN
2485 XPUSHs(sv_2mortal(newSVpv(dp->d_name, dp->d_namlen)));
2486#else
2487 XPUSHs(sv_2mortal(newSVpv(dp->d_name, 0)));
2488#endif
2489 }
2490 RETURN;
2491
2492nope:
2493 if (!errno)
748a9306 2494 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2495 if (GIMME == G_ARRAY)
2496 RETURN;
2497 else
2498 RETPUSHUNDEF;
2499#else
2500 DIE(no_dir_func, "readdir");
2501#endif
2502}
2503
2504PP(pp_telldir)
2505{
2506 dSP; dTARGET;
2507#if defined(HAS_TELLDIR) || defined(telldir)
2508#if !defined(telldir) && !defined(HAS_TELLDIR_PROTOTYPE)
2509 long telldir _((DIR *));
2510#endif
2511 GV *gv = (GV*)POPs;
2512 register IO *io = GvIOn(gv);
2513
2514 if (!io || !IoDIRP(io))
2515 goto nope;
2516
2517 PUSHi( telldir(IoDIRP(io)) );
2518 RETURN;
2519nope:
2520 if (!errno)
748a9306 2521 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2522 RETPUSHUNDEF;
2523#else
2524 DIE(no_dir_func, "telldir");
2525#endif
2526}
2527
2528PP(pp_seekdir)
2529{
2530 dSP;
2531#if defined(HAS_SEEKDIR) || defined(seekdir)
2532 long along = POPl;
2533 GV *gv = (GV*)POPs;
2534 register IO *io = GvIOn(gv);
2535
2536 if (!io || !IoDIRP(io))
2537 goto nope;
2538
2539 (void)seekdir(IoDIRP(io), along);
2540
2541 RETPUSHYES;
2542nope:
2543 if (!errno)
748a9306 2544 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2545 RETPUSHUNDEF;
2546#else
2547 DIE(no_dir_func, "seekdir");
2548#endif
2549}
2550
2551PP(pp_rewinddir)
2552{
2553 dSP;
2554#if defined(HAS_REWINDDIR) || defined(rewinddir)
2555 GV *gv = (GV*)POPs;
2556 register IO *io = GvIOn(gv);
2557
2558 if (!io || !IoDIRP(io))
2559 goto nope;
2560
2561 (void)rewinddir(IoDIRP(io));
2562 RETPUSHYES;
2563nope:
2564 if (!errno)
748a9306 2565 SETERRNO(EBADF,RMS$_ISI);
a0d0e21e
LW		 2566 RETPUSHUNDEF;
2567#else
2568 DIE(no_dir_func, "rewinddir");
2569#endif
2570}
2571
2572PP(pp_closedir)
2573{
2574 dSP;
2575#if defined(Direntry_t) && defined(HAS_READDIR)
2576 GV *gv = (GV*)POPs;
2577 register IO *io = GvIOn(gv);
2578
2579 if (!io || !IoDIRP(io))
2580 goto nope;
2581
2582#ifdef VOID_CLOSEDIR
2583 closedir(IoDIRP(io));
2584#else
748a9306
LW		 2585 if (closedir(IoDIRP(io)) < 0) {
2586 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 2587 goto nope;
748a9306 2588 }
a0d0e21e
LW		 2589#endif
2590 IoDIRP(io) = 0;
2591
2592 RETPUSHYES;
2593nope:
2594 if (!errno)
748a9306 2595 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2596 RETPUSHUNDEF;
2597#else
2598 DIE(no_dir_func, "closedir");
2599#endif
2600}
2601
2602/* Process control. */
2603
2604PP(pp_fork)
2605{
2606 dSP; dTARGET;
2607 int childpid;
2608 GV *tmpgv;
2609
2610 EXTEND(SP, 1);
2611#ifdef HAS_FORK
2612 childpid = fork();
2613 if (childpid < 0)
2614 RETSETUNDEF;
2615 if (!childpid) {
2616 /*SUPPRESS 560*/
2617 if (tmpgv = gv_fetchpv("$", TRUE, SVt_PV))
2618 sv_setiv(GvSV(tmpgv), (I32)getpid());
2619 hv_clear(pidstatus); /* no kids, so don't wait for 'em */
2620 }
2621 PUSHi(childpid);
2622 RETURN;
2623#else
2624 DIE(no_func, "Unsupported function fork");
2625#endif
2626}
2627
2628PP(pp_wait)
2629{
2630 dSP; dTARGET;
2631 int childpid;
2632 int argflags;
2633 I32 value;
2634
2635 EXTEND(SP, 1);
2636#ifdef HAS_WAIT
2637 childpid = wait(&argflags);
2638 if (childpid > 0)
2639 pidgone(childpid, argflags);
2640 value = (I32)childpid;
748a9306 2641 statusvalue = FIXSTATUS(argflags);
a0d0e21e
LW		 2642 PUSHi(value);
2643 RETURN;
2644#else
2645 DIE(no_func, "Unsupported function wait");
2646#endif
2647}
2648
2649PP(pp_waitpid)
2650{
2651 dSP; dTARGET;
2652 int childpid;
2653 int optype;
2654 int argflags;
2655 I32 value;
2656
2657#ifdef HAS_WAIT
2658 optype = POPi;
2659 childpid = TOPi;
2660 childpid = wait4pid(childpid, &argflags, optype);
2661 value = (I32)childpid;
748a9306 2662 statusvalue = FIXSTATUS(argflags);
a0d0e21e
LW		 2663 SETi(value);
2664 RETURN;
2665#else
2666 DIE(no_func, "Unsupported function wait");
2667#endif
2668}
2669
2670PP(pp_system)
2671{
2672 dSP; dMARK; dORIGMARK; dTARGET;
2673 I32 value;
2674 int childpid;
2675 int result;
2676 int status;
ecfc5424
AD		 2677 Signal_t (*ihand)(); /* place to save signal during system() */
2678 Signal_t (*qhand)(); /* place to save signal during system() */
a0d0e21e
LW		 2679
2680#if defined(HAS_FORK) && !defined(VMS)
2681 if (SP - MARK == 1) {
2682 if (tainting) {
2683 char *junk = SvPV(TOPs, na);
2684 TAINT_ENV();
2685 TAINT_PROPER("system");
2686 }
2687 }
2688 while ((childpid = vfork()) == -1) {
2689 if (errno != EAGAIN) {
2690 value = -1;
2691 SP = ORIGMARK;
2692 PUSHi(value);
2693 RETURN;
2694 }
2695 sleep(5);
2696 }
2697 if (childpid > 0) {
2698 ihand = signal(SIGINT, SIG_IGN);
2699 qhand = signal(SIGQUIT, SIG_IGN);
748a9306
LW		 2700 do {
2701 result = wait4pid(childpid, &status, 0);
2702 } while (result == -1 && errno == EINTR);
a0d0e21e
LW		 2703 (void)signal(SIGINT, ihand);
2704 (void)signal(SIGQUIT, qhand);
748a9306 2705 statusvalue = FIXSTATUS(status);
a0d0e21e
LW		 2706 if (result < 0)
2707 value = -1;
2708 else {
2709 value = (I32)((unsigned int)status & 0xffff);
2710 }
2711 do_execfree(); /* free any memory child malloced on vfork */
2712 SP = ORIGMARK;
2713 PUSHi(value);
2714 RETURN;
2715 }
2716 if (op->op_flags & OPf_STACKED) {
2717 SV *really = *++MARK;
2718 value = (I32)do_aexec(really, MARK, SP);
2719 }
2720 else if (SP - MARK != 1)
2721 value = (I32)do_aexec(Nullsv, MARK, SP);
2722 else {
2723 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2724 }
2725 _exit(-1);
2726#else /* ! FORK or VMS */
2727 if (op->op_flags & OPf_STACKED) {
2728 SV *really = *++MARK;
2729 value = (I32)do_aspawn(really, MARK, SP);
2730 }
2731 else if (SP - MARK != 1)
2732 value = (I32)do_aspawn(Nullsv, MARK, SP);
2733 else {
2734 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), na));
2735 }
2736 do_execfree();
2737 SP = ORIGMARK;
2738 PUSHi(value);
2739#endif /* !FORK or VMS */
2740 RETURN;
2741}
2742
2743PP(pp_exec)
2744{
2745 dSP; dMARK; dORIGMARK; dTARGET;
2746 I32 value;
2747
2748 if (op->op_flags & OPf_STACKED) {
2749 SV *really = *++MARK;
2750 value = (I32)do_aexec(really, MARK, SP);
2751 }
2752 else if (SP - MARK != 1)
2753#ifdef VMS
2754 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
2755#else
2756 value = (I32)do_aexec(Nullsv, MARK, SP);
2757#endif
2758 else {
2759 if (tainting) {
2760 char *junk = SvPV(*SP, na);
2761 TAINT_ENV();
2762 TAINT_PROPER("exec");
2763 }
2764#ifdef VMS
2765 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), na));
2766#else
2767 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), na));
2768#endif
2769 }
2770 SP = ORIGMARK;
2771 PUSHi(value);
2772 RETURN;
2773}
2774
2775PP(pp_kill)
2776{
2777 dSP; dMARK; dTARGET;
2778 I32 value;
2779#ifdef HAS_KILL
2780 value = (I32)apply(op->op_type, MARK, SP);
2781 SP = MARK;
2782 PUSHi(value);
2783 RETURN;
2784#else
2785 DIE(no_func, "Unsupported function kill");
2786#endif
2787}
2788
2789PP(pp_getppid)
2790{
2791#ifdef HAS_GETPPID
2792 dSP; dTARGET;
2793 XPUSHi( getppid() );
2794 RETURN;
2795#else
2796 DIE(no_func, "getppid");
2797#endif
2798}
2799
2800PP(pp_getpgrp)
2801{
2802#ifdef HAS_GETPGRP
2803 dSP; dTARGET;
2804 int pid;
2805 I32 value;
2806
2807 if (MAXARG < 1)
2808 pid = 0;
2809 else
2810 pid = SvIVx(POPs);
2811#ifdef USE_BSDPGRP
2812 value = (I32)getpgrp(pid);
2813#else
2814 if (pid != 0)
2815 DIE("POSIX getpgrp can't take an argument");
2816 value = (I32)getpgrp();
2817#endif
2818 XPUSHi(value);
2819 RETURN;
2820#else
2821 DIE(no_func, "getpgrp()");
2822#endif
2823}
2824
2825PP(pp_setpgrp)
2826{
2827#ifdef HAS_SETPGRP
2828 dSP; dTARGET;
2829 int pgrp;
2830 int pid;
2831 if (MAXARG < 2) {
2832 pgrp = 0;
2833 pid = 0;
2834 }
2835 else {
2836 pgrp = POPi;
2837 pid = TOPi;
2838 }
2839
2840 TAINT_PROPER("setpgrp");
2841#ifdef USE_BSDPGRP
2842 SETi( setpgrp(pid, pgrp) >= 0 );
2843#else
2844 if ((pgrp != 0) || (pid != 0)) {
2845 DIE("POSIX setpgrp can't take an argument");
2846 }
2847 SETi( setpgrp() >= 0 );
2848#endif /* USE_BSDPGRP */
2849 RETURN;
2850#else
2851 DIE(no_func, "setpgrp()");
2852#endif
2853}
2854
2855PP(pp_getpriority)
2856{
2857 dSP; dTARGET;
2858 int which;
2859 int who;
2860#ifdef HAS_GETPRIORITY
2861 who = POPi;
2862 which = TOPi;
2863 SETi( getpriority(which, who) );
2864 RETURN;
2865#else
2866 DIE(no_func, "getpriority()");
2867#endif
2868}
2869
2870PP(pp_setpriority)
2871{
2872 dSP; dTARGET;
2873 int which;
2874 int who;
2875 int niceval;
2876#ifdef HAS_SETPRIORITY
2877 niceval = POPi;
2878 who = POPi;
2879 which = TOPi;
2880 TAINT_PROPER("setpriority");
2881 SETi( setpriority(which, who, niceval) >= 0 );
2882 RETURN;
2883#else
2884 DIE(no_func, "setpriority()");
2885#endif
2886}
2887
2888/* Time calls. */
2889
2890PP(pp_time)
2891{
2892 dSP; dTARGET;
2893 XPUSHi( time(Null(Time_t*)) );
2894 RETURN;
2895}
2896
2897#ifndef HZ
2898#define HZ 60
2899#endif
2900
2901PP(pp_tms)
2902{
2903 dSP;
2904
2905#if defined(MSDOS) || !defined(HAS_TIMES)
2906 DIE("times not implemented");
2907#else
2908 EXTEND(SP, 4);
2909
2910#ifndef VMS
2911 (void)times(&timesbuf);
2912#else
2913 (void)times((tbuffer_t *)&timesbuf); /* time.h uses different name for */
2914 /* struct tms, though same data */
2915 /* is returned. */
2916#endif
2917
2918 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_utime)/HZ)));
2919 if (GIMME == G_ARRAY) {
2920 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_stime)/HZ)));
2921 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cutime)/HZ)));
2922 PUSHs(sv_2mortal(newSVnv(((double)timesbuf.tms_cstime)/HZ)));
2923 }
2924 RETURN;
2925#endif /* MSDOS */
2926}
2927
2928PP(pp_localtime)
2929{
2930 return pp_gmtime(ARGS);
2931}
2932
2933PP(pp_gmtime)
2934{
2935 dSP;
2936 Time_t when;
2937 struct tm *tmbuf;
2938 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
2939 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
2940 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
2941
2942 if (MAXARG < 1)
2943 (void)time(&when);
2944 else
2945 when = (Time_t)SvIVx(POPs);
2946
2947 if (op->op_type == OP_LOCALTIME)
2948 tmbuf = localtime(&when);
2949 else
2950 tmbuf = gmtime(&when);
2951
2952 EXTEND(SP, 9);
2953 if (GIMME != G_ARRAY) {
2954 dTARGET;
2955 char mybuf[30];
2956 if (!tmbuf)
2957 RETPUSHUNDEF;
2958 sprintf(mybuf, "%s %s %2d %02d:%02d:%02d %d",
2959 dayname[tmbuf->tm_wday],
2960 monname[tmbuf->tm_mon],
2961 tmbuf->tm_mday,
2962 tmbuf->tm_hour,
2963 tmbuf->tm_min,
2964 tmbuf->tm_sec,
2965 tmbuf->tm_year + 1900);
2966 PUSHp(mybuf, strlen(mybuf));
2967 }
2968 else if (tmbuf) {
2969 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_sec)));
2970 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_min)));
2971 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_hour)));
2972 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mday)));
2973 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_mon)));
2974 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_year)));
2975 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_wday)));
2976 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_yday)));
2977 PUSHs(sv_2mortal(newSViv((I32)tmbuf->tm_isdst)));
2978 }
2979 RETURN;
2980}
2981
2982PP(pp_alarm)
2983{
2984 dSP; dTARGET;
2985 int anum;
2986#ifdef HAS_ALARM
2987 anum = POPi;
2988 anum = alarm((unsigned int)anum);
2989 EXTEND(SP, 1);
2990 if (anum < 0)
2991 RETPUSHUNDEF;
2992 PUSHi((I32)anum);
2993 RETURN;
2994#else
2995 DIE(no_func, "Unsupported function alarm");
a0d0e21e
LW		 2996#endif
2997}
2998
2999PP(pp_sleep)
3000{
3001 dSP; dTARGET;
3002 I32 duration;
3003 Time_t lasttime;
3004 Time_t when;
3005
3006 (void)time(&lasttime);
3007 if (MAXARG < 1)
3008 pause();
3009 else {
3010 duration = POPi;
3011 sleep((unsigned int)duration);
3012 }
3013 (void)time(&when);
3014 XPUSHi(when - lasttime);
3015 RETURN;
3016}
3017
3018/* Shared memory. */
3019
3020PP(pp_shmget)
3021{
3022 return pp_semget(ARGS);
3023}
3024
3025PP(pp_shmctl)
3026{
3027 return pp_semctl(ARGS);
3028}
3029
3030PP(pp_shmread)
3031{
3032 return pp_shmwrite(ARGS);
3033}
3034
3035PP(pp_shmwrite)
3036{
3037#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3038 dSP; dMARK; dTARGET;
3039 I32 value = (I32)(do_shmio(op->op_type, MARK, SP) >= 0);
3040 SP = MARK;
3041 PUSHi(value);
3042 RETURN;
3043#else
748a9306 3044 return pp_semget(ARGS);
a0d0e21e
LW		 3045#endif
3046}
3047
3048/* Message passing. */
3049
3050PP(pp_msgget)
3051{
3052 return pp_semget(ARGS);
3053}
3054
3055PP(pp_msgctl)
3056{
3057 return pp_semctl(ARGS);
3058}
3059
3060PP(pp_msgsnd)
3061{
3062#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3063 dSP; dMARK; dTARGET;
3064 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
3065 SP = MARK;
3066 PUSHi(value);
3067 RETURN;
3068#else
748a9306 3069 return pp_semget(ARGS);
a0d0e21e
LW		 3070#endif
3071}
3072
3073PP(pp_msgrcv)
3074{
3075#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3076 dSP; dMARK; dTARGET;
3077 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
3078 SP = MARK;
3079 PUSHi(value);
3080 RETURN;
3081#else
748a9306 3082 return pp_semget(ARGS);
a0d0e21e
LW		 3083#endif
3084}
3085
3086/* Semaphores. */
3087
3088PP(pp_semget)
3089{
3090#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3091 dSP; dMARK; dTARGET;
3092 int anum = do_ipcget(op->op_type, MARK, SP);
3093 SP = MARK;
3094 if (anum == -1)
3095 RETPUSHUNDEF;
3096 PUSHi(anum);
3097 RETURN;
3098#else
3099 DIE("System V IPC is not implemented on this machine");
3100#endif
3101}
3102
3103PP(pp_semctl)
3104{
3105#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3106 dSP; dMARK; dTARGET;
3107 int anum = do_ipcctl(op->op_type, MARK, SP);
3108 SP = MARK;
3109 if (anum == -1)
3110 RETSETUNDEF;
3111 if (anum != 0) {
3112 PUSHi(anum);
3113 }
3114 else {
3115 PUSHp("0 but true",10);
3116 }
3117 RETURN;
3118#else
748a9306 3119 return pp_semget(ARGS);
a0d0e21e
LW		 3120#endif
3121}
3122
3123PP(pp_semop)
3124{
3125#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
3126 dSP; dMARK; dTARGET;
3127 I32 value = (I32)(do_semop(MARK, SP) >= 0);
3128 SP = MARK;
3129 PUSHi(value);
3130 RETURN;
3131#else
748a9306 3132 return pp_semget(ARGS);
a0d0e21e
LW		 3133#endif
3134}
3135
3136/* Get system info. */
3137
3138PP(pp_ghbyname)
3139{
3140#ifdef HAS_SOCKET
3141 return pp_ghostent(ARGS);
3142#else
3143 DIE(no_sock_func, "gethostbyname");
3144#endif
3145}
3146
3147PP(pp_ghbyaddr)
3148{
3149#ifdef HAS_SOCKET
3150 return pp_ghostent(ARGS);
3151#else
3152 DIE(no_sock_func, "gethostbyaddr");
3153#endif
3154}
3155
3156PP(pp_ghostent)
3157{
3158 dSP;
3159#ifdef HAS_SOCKET
3160 I32 which = op->op_type;
3161 register char **elem;
3162 register SV *sv;
3163 struct hostent *gethostbyname();
3164 struct hostent *gethostbyaddr();
3165#ifdef HAS_GETHOSTENT
3166 struct hostent *gethostent();
3167#endif
3168 struct hostent *hent;
3169 unsigned long len;
3170
3171 EXTEND(SP, 10);
3172 if (which == OP_GHBYNAME) {
3173 hent = gethostbyname(POPp);
3174 }
3175 else if (which == OP_GHBYADDR) {
3176 int addrtype = POPi;
748a9306 3177 SV *addrsv = POPs;
a0d0e21e 3178 STRLEN addrlen;
748a9306 3179 char *addr = SvPV(addrsv, addrlen);
a0d0e21e
LW		 3180
3181 hent = gethostbyaddr(addr, addrlen, addrtype);
3182 }
3183 else
3184#ifdef HAS_GETHOSTENT
3185 hent = gethostent();
3186#else
3187 DIE("gethostent not implemented");
3188#endif
3189
3190#ifdef HOST_NOT_FOUND
3191 if (!hent)
748a9306 3192 statusvalue = FIXSTATUS(h_errno);
a0d0e21e
LW		 3193#endif
3194
3195 if (GIMME != G_ARRAY) {
3196 PUSHs(sv = sv_newmortal());
3197 if (hent) {
3198 if (which == OP_GHBYNAME) {
3199 sv_setpvn(sv, hent->h_addr, hent->h_length);
3200 }
3201 else
3202 sv_setpv(sv, (char*)hent->h_name);
3203 }
3204 RETURN;
3205 }
3206
3207 if (hent) {
3208 PUSHs(sv = sv_mortalcopy(&sv_no));
3209 sv_setpv(sv, (char*)hent->h_name);
3210 PUSHs(sv = sv_mortalcopy(&sv_no));
3211 for (elem = hent->h_aliases; elem && *elem; elem++) {
3212 sv_catpv(sv, *elem);
3213 if (elem[1])
3214 sv_catpvn(sv, " ", 1);
3215 }
3216 PUSHs(sv = sv_mortalcopy(&sv_no));
3217 sv_setiv(sv, (I32)hent->h_addrtype);
3218 PUSHs(sv = sv_mortalcopy(&sv_no));
3219 len = hent->h_length;
3220 sv_setiv(sv, (I32)len);
3221#ifdef h_addr
3222 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3223 XPUSHs(sv = sv_mortalcopy(&sv_no));
3224 sv_setpvn(sv, *elem, len);
3225 }
3226#else
3227 PUSHs(sv = sv_mortalcopy(&sv_no));
3228 sv_setpvn(sv, hent->h_addr, len);
3229#endif /* h_addr */
3230 }
3231 RETURN;
3232#else
3233 DIE(no_sock_func, "gethostent");
3234#endif
3235}
3236
3237PP(pp_gnbyname)
3238{
3239#ifdef HAS_SOCKET
3240 return pp_gnetent(ARGS);
3241#else
3242 DIE(no_sock_func, "getnetbyname");
3243#endif
3244}
3245
3246PP(pp_gnbyaddr)
3247{
3248#ifdef HAS_SOCKET
3249 return pp_gnetent(ARGS);
3250#else
3251 DIE(no_sock_func, "getnetbyaddr");
3252#endif
3253}
3254
3255PP(pp_gnetent)
3256{
3257 dSP;
3258#ifdef HAS_SOCKET
3259 I32 which = op->op_type;
3260 register char **elem;
3261 register SV *sv;
3262 struct netent *getnetbyname();
3263 struct netent *getnetbyaddr();
3264 struct netent *getnetent();
3265 struct netent *nent;
3266
3267 if (which == OP_GNBYNAME)
3268 nent = getnetbyname(POPp);
3269 else if (which == OP_GNBYADDR) {
3270 int addrtype = POPi;
3271 unsigned long addr = U_L(POPn);
3272 nent = getnetbyaddr((long)addr, addrtype);
3273 }
3274 else
3275 nent = getnetent();
3276
3277 EXTEND(SP, 4);
3278 if (GIMME != G_ARRAY) {
3279 PUSHs(sv = sv_newmortal());
3280 if (nent) {
3281 if (which == OP_GNBYNAME)
3282 sv_setiv(sv, (I32)nent->n_net);
3283 else
3284 sv_setpv(sv, nent->n_name);
3285 }
3286 RETURN;
3287 }
3288
3289 if (nent) {
3290 PUSHs(sv = sv_mortalcopy(&sv_no));
3291 sv_setpv(sv, nent->n_name);
3292 PUSHs(sv = sv_mortalcopy(&sv_no));
3293 for (elem = nent->n_aliases; *elem; elem++) {
3294 sv_catpv(sv, *elem);
3295 if (elem[1])
3296 sv_catpvn(sv, " ", 1);
3297 }
3298 PUSHs(sv = sv_mortalcopy(&sv_no));
3299 sv_setiv(sv, (I32)nent->n_addrtype);
3300 PUSHs(sv = sv_mortalcopy(&sv_no));
3301 sv_setiv(sv, (I32)nent->n_net);
3302 }
3303
3304 RETURN;
3305#else
3306 DIE(no_sock_func, "getnetent");
3307#endif
3308}
3309
3310PP(pp_gpbyname)
3311{
3312#ifdef HAS_SOCKET
3313 return pp_gprotoent(ARGS);
3314#else
3315 DIE(no_sock_func, "getprotobyname");
3316#endif
3317}
3318
3319PP(pp_gpbynumber)
3320{
3321#ifdef HAS_SOCKET
3322 return pp_gprotoent(ARGS);
3323#else
3324 DIE(no_sock_func, "getprotobynumber");
3325#endif
3326}
3327
3328PP(pp_gprotoent)
3329{
3330 dSP;
3331#ifdef HAS_SOCKET
3332 I32 which = op->op_type;
3333 register char **elem;
3334 register SV *sv;
3335 struct protoent *getprotobyname();
3336 struct protoent *getprotobynumber();
3337 struct protoent *getprotoent();
3338 struct protoent *pent;
3339
3340 if (which == OP_GPBYNAME)
3341 pent = getprotobyname(POPp);
3342 else if (which == OP_GPBYNUMBER)
3343 pent = getprotobynumber(POPi);
3344 else
3345 pent = getprotoent();
3346
3347 EXTEND(SP, 3);
3348 if (GIMME != G_ARRAY) {
3349 PUSHs(sv = sv_newmortal());
3350 if (pent) {
3351 if (which == OP_GPBYNAME)
3352 sv_setiv(sv, (I32)pent->p_proto);
3353 else
3354 sv_setpv(sv, pent->p_name);
3355 }
3356 RETURN;
3357 }
3358
3359 if (pent) {
3360 PUSHs(sv = sv_mortalcopy(&sv_no));
3361 sv_setpv(sv, pent->p_name);
3362 PUSHs(sv = sv_mortalcopy(&sv_no));
3363 for (elem = pent->p_aliases; *elem; elem++) {
3364 sv_catpv(sv, *elem);
3365 if (elem[1])
3366 sv_catpvn(sv, " ", 1);
3367 }
3368 PUSHs(sv = sv_mortalcopy(&sv_no));
3369 sv_setiv(sv, (I32)pent->p_proto);
3370 }
3371
3372 RETURN;
3373#else
3374 DIE(no_sock_func, "getprotoent");
3375#endif
3376}
3377
3378PP(pp_gsbyname)
3379{
3380#ifdef HAS_SOCKET
3381 return pp_gservent(ARGS);
3382#else
3383 DIE(no_sock_func, "getservbyname");
3384#endif
3385}
3386
3387PP(pp_gsbyport)
3388{
3389#ifdef HAS_SOCKET
3390 return pp_gservent(ARGS);
3391#else
3392 DIE(no_sock_func, "getservbyport");
3393#endif
3394}
3395
3396PP(pp_gservent)
3397{
3398 dSP;
3399#ifdef HAS_SOCKET
3400 I32 which = op->op_type;
3401 register char **elem;
3402 register SV *sv;
3403 struct servent *getservbyname();
3404 struct servent *getservbynumber();
3405 struct servent *getservent();
3406 struct servent *sent;
3407
3408 if (which == OP_GSBYNAME) {
3409 char *proto = POPp;
3410 char *name = POPp;
3411
3412 if (proto && !*proto)
3413 proto = Nullch;
3414
3415 sent = getservbyname(name, proto);
3416 }
3417 else if (which == OP_GSBYPORT) {
3418 char *proto = POPp;
3419 int port = POPi;
3420
3421 sent = getservbyport(port, proto);
3422 }
3423 else
3424 sent = getservent();
3425
3426 EXTEND(SP, 4);
3427 if (GIMME != G_ARRAY) {
3428 PUSHs(sv = sv_newmortal());
3429 if (sent) {
3430 if (which == OP_GSBYNAME) {
3431#ifdef HAS_NTOHS
3432 sv_setiv(sv, (I32)ntohs(sent->s_port));
3433#else
3434 sv_setiv(sv, (I32)(sent->s_port));
3435#endif
3436 }
3437 else
3438 sv_setpv(sv, sent->s_name);
3439 }
3440 RETURN;
3441 }
3442
3443 if (sent) {
3444 PUSHs(sv = sv_mortalcopy(&sv_no));
3445 sv_setpv(sv, sent->s_name);
3446 PUSHs(sv = sv_mortalcopy(&sv_no));
3447 for (elem = sent->s_aliases; *elem; elem++) {
3448 sv_catpv(sv, *elem);
3449 if (elem[1])
3450 sv_catpvn(sv, " ", 1);
3451 }
3452 PUSHs(sv = sv_mortalcopy(&sv_no));
3453#ifdef HAS_NTOHS
3454 sv_setiv(sv, (I32)ntohs(sent->s_port));
3455#else
3456 sv_setiv(sv, (I32)(sent->s_port));
3457#endif
3458 PUSHs(sv = sv_mortalcopy(&sv_no));
3459 sv_setpv(sv, sent->s_proto);
3460 }
3461
3462 RETURN;
3463#else
3464 DIE(no_sock_func, "getservent");
3465#endif
3466}
3467
3468PP(pp_shostent)
3469{
3470 dSP;
3471#ifdef HAS_SOCKET
3472 sethostent(TOPi);
3473 RETSETYES;
3474#else
3475 DIE(no_sock_func, "sethostent");
3476#endif
3477}
3478
3479PP(pp_snetent)
3480{
3481 dSP;
3482#ifdef HAS_SOCKET
3483 setnetent(TOPi);
3484 RETSETYES;
3485#else
3486 DIE(no_sock_func, "setnetent");
3487#endif
3488}
3489
3490PP(pp_sprotoent)
3491{
3492 dSP;
3493#ifdef HAS_SOCKET
3494 setprotoent(TOPi);
3495 RETSETYES;
3496#else
3497 DIE(no_sock_func, "setprotoent");
3498#endif
3499}
3500
3501PP(pp_sservent)
3502{
3503 dSP;
3504#ifdef HAS_SOCKET
3505 setservent(TOPi);
3506 RETSETYES;
3507#else
3508 DIE(no_sock_func, "setservent");
3509#endif
3510}
3511
3512PP(pp_ehostent)
3513{
3514 dSP;
3515#ifdef HAS_SOCKET
3516 endhostent();
3517 EXTEND(sp,1);
3518 RETPUSHYES;
3519#else
3520 DIE(no_sock_func, "endhostent");
3521#endif
3522}
3523
3524PP(pp_enetent)
3525{
3526 dSP;
3527#ifdef HAS_SOCKET
3528 endnetent();
3529 EXTEND(sp,1);
3530 RETPUSHYES;
3531#else
3532 DIE(no_sock_func, "endnetent");
3533#endif
3534}
3535
3536PP(pp_eprotoent)
3537{
3538 dSP;
3539#ifdef HAS_SOCKET
3540 endprotoent();
3541 EXTEND(sp,1);
3542 RETPUSHYES;
3543#else
3544 DIE(no_sock_func, "endprotoent");
3545#endif
3546}
3547
3548PP(pp_eservent)
3549{
3550 dSP;
3551#ifdef HAS_SOCKET
3552 endservent();
3553 EXTEND(sp,1);
3554 RETPUSHYES;
3555#else
3556 DIE(no_sock_func, "endservent");
3557#endif
3558}
3559
3560PP(pp_gpwnam)
3561{
3562#ifdef HAS_PASSWD
3563 return pp_gpwent(ARGS);
3564#else
3565 DIE(no_func, "getpwnam");
3566#endif
3567}
3568
3569PP(pp_gpwuid)
3570{
3571#ifdef HAS_PASSWD
3572 return pp_gpwent(ARGS);
3573#else
3574 DIE(no_func, "getpwuid");
3575#endif
3576}
3577
3578PP(pp_gpwent)
3579{
3580 dSP;
3581#ifdef HAS_PASSWD
3582 I32 which = op->op_type;
3583 register SV *sv;
3584 struct passwd *pwent;
3585
3586 if (which == OP_GPWNAM)
3587 pwent = getpwnam(POPp);
3588 else if (which == OP_GPWUID)
3589 pwent = getpwuid(POPi);
3590 else
3591 pwent = (struct passwd *)getpwent();
3592
3593 EXTEND(SP, 10);
3594 if (GIMME != G_ARRAY) {
3595 PUSHs(sv = sv_newmortal());
3596 if (pwent) {
3597 if (which == OP_GPWNAM)
3598 sv_setiv(sv, (I32)pwent->pw_uid);
3599 else
3600 sv_setpv(sv, pwent->pw_name);
3601 }
3602 RETURN;
3603 }
3604
3605 if (pwent) {
3606 PUSHs(sv = sv_mortalcopy(&sv_no));
3607 sv_setpv(sv, pwent->pw_name);
3608 PUSHs(sv = sv_mortalcopy(&sv_no));
3609 sv_setpv(sv, pwent->pw_passwd);
3610 PUSHs(sv = sv_mortalcopy(&sv_no));
3611 sv_setiv(sv, (I32)pwent->pw_uid);
3612 PUSHs(sv = sv_mortalcopy(&sv_no));
3613 sv_setiv(sv, (I32)pwent->pw_gid);
3614 PUSHs(sv = sv_mortalcopy(&sv_no));
3615#ifdef PWCHANGE
3616 sv_setiv(sv, (I32)pwent->pw_change);
3617#else
3618#ifdef PWQUOTA
3619 sv_setiv(sv, (I32)pwent->pw_quota);
3620#else
3621#ifdef PWAGE
3622 sv_setpv(sv, pwent->pw_age);
3623#endif
3624#endif
3625#endif
3626 PUSHs(sv = sv_mortalcopy(&sv_no));
3627#ifdef PWCLASS
3628 sv_setpv(sv, pwent->pw_class);
3629#else
3630#ifdef PWCOMMENT
3631 sv_setpv(sv, pwent->pw_comment);
3632#endif
3633#endif
3634 PUSHs(sv = sv_mortalcopy(&sv_no));
3635 sv_setpv(sv, pwent->pw_gecos);
3636 PUSHs(sv = sv_mortalcopy(&sv_no));
3637 sv_setpv(sv, pwent->pw_dir);
3638 PUSHs(sv = sv_mortalcopy(&sv_no));
3639 sv_setpv(sv, pwent->pw_shell);
3640#ifdef PWEXPIRE
3641 PUSHs(sv = sv_mortalcopy(&sv_no));
3642 sv_setiv(sv, (I32)pwent->pw_expire);
3643#endif
3644 }
3645 RETURN;
3646#else
3647 DIE(no_func, "getpwent");
3648#endif
3649}
3650
3651PP(pp_spwent)
3652{
3653 dSP;
3654#ifdef HAS_PASSWD
3655 setpwent();
3656 RETPUSHYES;
3657#else
3658 DIE(no_func, "setpwent");
3659#endif
3660}
3661
3662PP(pp_epwent)
3663{
3664 dSP;
3665#ifdef HAS_PASSWD
3666 endpwent();
3667 RETPUSHYES;
3668#else
3669 DIE(no_func, "endpwent");
3670#endif
3671}
3672
3673PP(pp_ggrnam)
3674{
3675#ifdef HAS_GROUP
3676 return pp_ggrent(ARGS);
3677#else
3678 DIE(no_func, "getgrnam");
3679#endif
3680}
3681
3682PP(pp_ggrgid)
3683{
3684#ifdef HAS_GROUP
3685 return pp_ggrent(ARGS);
3686#else
3687 DIE(no_func, "getgrgid");
3688#endif
3689}
3690
3691PP(pp_ggrent)
3692{
3693 dSP;
3694#ifdef HAS_GROUP
3695 I32 which = op->op_type;
3696 register char **elem;
3697 register SV *sv;
3698 struct group *grent;
3699
3700 if (which == OP_GGRNAM)
3701 grent = (struct group *)getgrnam(POPp);
3702 else if (which == OP_GGRGID)
3703 grent = (struct group *)getgrgid(POPi);
3704 else
3705 grent = (struct group *)getgrent();
3706
3707 EXTEND(SP, 4);
3708 if (GIMME != G_ARRAY) {
3709 PUSHs(sv = sv_newmortal());
3710 if (grent) {
3711 if (which == OP_GGRNAM)
3712 sv_setiv(sv, (I32)grent->gr_gid);
3713 else
3714 sv_setpv(sv, grent->gr_name);
3715 }
3716 RETURN;
3717 }
3718
3719 if (grent) {
3720 PUSHs(sv = sv_mortalcopy(&sv_no));
3721 sv_setpv(sv, grent->gr_name);
3722 PUSHs(sv = sv_mortalcopy(&sv_no));
3723 sv_setpv(sv, grent->gr_passwd);
3724 PUSHs(sv = sv_mortalcopy(&sv_no));
3725 sv_setiv(sv, (I32)grent->gr_gid);
3726 PUSHs(sv = sv_mortalcopy(&sv_no));
3727 for (elem = grent->gr_mem; *elem; elem++) {
3728 sv_catpv(sv, *elem);
3729 if (elem[1])
3730 sv_catpvn(sv, " ", 1);
3731 }
3732 }
3733
3734 RETURN;
3735#else
3736 DIE(no_func, "getgrent");
3737#endif
3738}
3739
3740PP(pp_sgrent)
3741{
3742 dSP;
3743#ifdef HAS_GROUP
3744 setgrent();
3745 RETPUSHYES;
3746#else
3747 DIE(no_func, "setgrent");
3748#endif
3749}
3750
3751PP(pp_egrent)
3752{
3753 dSP;
3754#ifdef HAS_GROUP
3755 endgrent();
3756 RETPUSHYES;
3757#else
3758 DIE(no_func, "endgrent");
3759#endif
3760}
3761
3762PP(pp_getlogin)
3763{
3764 dSP; dTARGET;
3765#ifdef HAS_GETLOGIN
3766 char *tmps;
3767 EXTEND(SP, 1);
3768 if (!(tmps = getlogin()))
3769 RETPUSHUNDEF;
3770 PUSHp(tmps, strlen(tmps));
3771 RETURN;
3772#else
3773 DIE(no_func, "getlogin");
3774#endif
3775}
3776
3777/* Miscellaneous. */
3778
3779PP(pp_syscall)
3780{
3781#ifdef HAS_SYSCALL
3782 dSP; dMARK; dORIGMARK; dTARGET;
3783 register I32 items = SP - MARK;
3784 unsigned long a[20];
3785 register I32 i = 0;
3786 I32 retval = -1;
748a9306 3787 MAGIC *mg;
a0d0e21e
LW		 3788
3789 if (tainting) {
3790 while (++MARK <= SP) {
748a9306
LW		 3791 if (SvGMAGICAL(*MARK) && SvSMAGICAL(*MARK) &&
3792 (mg = mg_find(*MARK, 't')) && mg->mg_len & 1)
a0d0e21e
LW		 3793 tainted = TRUE;
3794 }
3795 MARK = ORIGMARK;
3796 TAINT_PROPER("syscall");
3797 }
3798
3799 /* This probably won't work on machines where sizeof(long) != sizeof(int)
3800 * or where sizeof(long) != sizeof(char*). But such machines will
3801 * not likely have syscall implemented either, so who cares?
3802 */
3803 while (++MARK <= SP) {
3804 if (SvNIOK(*MARK) || !i)
3805 a[i++] = SvIV(*MARK);
748a9306
LW		 3806 else if (*MARK == &sv_undef)
3807 a[i++] = 0;
3808 else
3809 a[i++] = (unsigned long)SvPV_force(*MARK, na);
a0d0e21e
LW		 3810 if (i > 15)
3811 break;
3812 }
3813 switch (items) {
3814 default:
3815 DIE("Too many args to syscall");
3816 case 0:
3817 DIE("Too few args to syscall");
3818 case 1:
3819 retval = syscall(a[0]);
3820 break;
3821 case 2:
3822 retval = syscall(a[0],a[1]);
3823 break;
3824 case 3:
3825 retval = syscall(a[0],a[1],a[2]);
3826 break;
3827 case 4:
3828 retval = syscall(a[0],a[1],a[2],a[3]);
3829 break;
3830 case 5:
3831 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
3832 break;
3833 case 6:
3834 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
3835 break;
3836 case 7:
3837 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
3838 break;
3839 case 8:
3840 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
3841 break;
3842#ifdef atarist
3843 case 9:
3844 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
3845 break;
3846 case 10:
3847 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
3848 break;
3849 case 11:
3850 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3851 a[10]);
3852 break;
3853 case 12:
3854 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3855 a[10],a[11]);
3856 break;
3857 case 13:
3858 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3859 a[10],a[11],a[12]);
3860 break;
3861 case 14:
3862 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
3863 a[10],a[11],a[12],a[13]);
3864 break;
3865#endif /* atarist */
3866 }
3867 SP = ORIGMARK;
3868 PUSHi(retval);
3869 RETURN;
3870#else
3871 DIE(no_func, "syscall");
3872#endif
3873}
3874
16d20bd9
AD		 3875#if !defined(HAS_FLOCK) && defined(HAS_LOCKF)
3876
3877/* XXX Emulate flock() with lockf(). This is just to increase
3878 portability of scripts. The calls are not completely
3879 interchangeable. What's really needed is a good file
3880 locking module.
3881*/
3882
3883/* We might need <unistd.h> because it sometimes defines the lockf()
3884 constants. Unfortunately, <unistd.h> causes troubles on some mixed
3885 (BSD/POSIX) systems, such as SunOS 4.1.3. We could just try including
3886 <unistd.h> here in this part of the file, but that might
3887 conflict with various other #defines and includes above, such as
3888 #define vfork fork above.
3889
3890 Further, the lockf() constants aren't POSIX, so they might not be
3891 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
3892 just stick in the SVID values and be done with it. Sigh.
3893*/
3894
3895# ifndef F_ULOCK
3896# define F_ULOCK 0 /* Unlock a previously locked region */
3897# endif
3898# ifndef F_LOCK
3899# define F_LOCK 1 /* Lock a region for exclusive use */
3900# endif
3901# ifndef F_TLOCK
3902# define F_TLOCK 2 /* Test and lock a region for exclusive use */
3903# endif
3904# ifndef F_TEST
3905# define F_TEST 3 /* Test a region for other processes locks */
3906# endif
3907
3908/* These are the flock() constants. Since this sytems doesn't have
3909 flock(), the values of the constants are probably not available.
3910*/
3911# ifndef LOCK_SH
3912# define LOCK_SH 1
3913# endif
3914# ifndef LOCK_EX
3915# define LOCK_EX 2
3916# endif
3917# ifndef LOCK_NB
3918# define LOCK_NB 4
3919# endif
3920# ifndef LOCK_UN
3921# define LOCK_UN 8
3922# endif
3923
3924int
3925lockf_emulate_flock (fd, operation)
3926int fd;
3927int operation;
3928{
3929 int i;
3930 switch (operation) {
3931
3932 /* LOCK_SH - get a shared lock */
3933 case LOCK_SH:
3934 /* LOCK_EX - get an exclusive lock */
3935 case LOCK_EX:
3936 i = lockf (fd, F_LOCK, 0);
3937 break;
3938
3939 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
3940 case LOCK_SH|LOCK_NB:
3941 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
3942 case LOCK_EX|LOCK_NB:
3943 i = lockf (fd, F_TLOCK, 0);
3944 if (i == -1)
3945 if ((errno == EAGAIN) || (errno == EACCES))
3946 errno = EWOULDBLOCK;
3947 break;
3948
3949 /* LOCK_UN - unlock */
3950 case LOCK_UN:
3951 i = lockf (fd, F_ULOCK, 0);
3952 break;
3953
3954 /* Default - can't decipher operation */
3955 default:
3956 i = -1;
3957 errno = EINVAL;
3958 break;
3959 }
3960 return (i);
3961}
3962#endif
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