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Integrate change #18420 from maint-5.8:
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
be3c0a43 3 * Copyright (c) 1991-2002, Larry Wall
a0d0e21e
LW		 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"
864dbfa3 18#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 19#include "perl.h"
20
f1066039
JH		 21#ifdef I_SHADOW
22/* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 24 * The API is from SysV.
25 *
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
28 *
29 * --jhi */
30# ifdef __hpux__
c529f79d 31/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 33# undef MAXINT
34# endif
35# include <shadow.h>
8c0bfa08
PB		 36#endif
37
301e8125
NIS		 38#ifdef HAS_SYSCALL
39#ifdef __cplusplus
8ac85365
NIS		 40extern "C" int syscall(unsigned long,...);
41#endif
42#endif
43
76c32331 44#ifdef I_SYS_WAIT
45# include <sys/wait.h>
46#endif
47
48#ifdef I_SYS_RESOURCE
49# include <sys/resource.h>
16d20bd9 50#endif
a0d0e21e 51
2986a63f
JH		 52#ifdef NETWARE
53NETDB_DEFINE_CONTEXT
54#endif
55
a0d0e21e 56#ifdef HAS_SELECT
1e743fda
JH		 57# ifdef I_SYS_SELECT
58# include <sys/select.h>
59# endif
a0d0e21e 60#endif
a0d0e21e 61
dc45a647
MB		 62/* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 68*/
cb50131a 69#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 70extern int h_errno;
71#endif
72
73#ifdef HAS_PASSWD
74# ifdef I_PWD
75# include <pwd.h>
76# else
fd8cd3a3 77# if !defined(VMS)
20ce7b12
GS		 78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
fd8cd3a3 80# endif
a0d0e21e 81# endif
28e8609d 82# ifdef HAS_GETPWENT
10bc17b6 83#ifndef getpwent
20ce7b12 84 struct passwd *getpwent (void);
c2a8f790
JH		 85#elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
10bc17b6 87#endif
28e8609d 88# endif
a0d0e21e
LW		 89#endif
90
91#ifdef HAS_GROUP
92# ifdef I_GRP
93# include <grp.h>
94# else
20ce7b12
GS		 95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
a0d0e21e 97# endif
28e8609d 98# ifdef HAS_GETGRENT
10bc17b6 99#ifndef getgrent
20ce7b12 100 struct group *getgrent (void);
10bc17b6 101#endif
28e8609d 102# endif
a0d0e21e
LW		 103#endif
104
105#ifdef I_UTIME
3730b96e 106# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 107# include <sys/utime.h>
108# else
109# include <utime.h>
110# endif
a0d0e21e 111#endif
a0d0e21e 112
cbdc8872 113#ifdef HAS_CHSIZE
cd52b7b2 114# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
115# undef my_chsize
116# endif
6ad3d225 117# define my_chsize PerlLIO_chsize
cbdc8872 118#endif
119
ff68c719 120#ifdef HAS_FLOCK
121# define FLOCK flock
122#else /* no flock() */
123
36477c24 124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128# if defined(HAS_FCNTL) && !defined(I_FCNTL)
129# include <fcntl.h>
130# endif
131
9d9004a9 132# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 133# define FLOCK fcntl_emulate_flock
134# define FCNTL_EMULATE_FLOCK
135# else /* no flock() or fcntl(F_SETLK,...) */
136# ifdef HAS_LOCKF
137# define FLOCK lockf_emulate_flock
138# define LOCKF_EMULATE_FLOCK
139# endif /* lockf */
140# endif /* no flock() or fcntl(F_SETLK,...) */
141
142# ifdef FLOCK
20ce7b12 143 static int FLOCK (int, int);
ff68c719 144
145 /*
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
148 */
149# ifndef LOCK_SH
150# define LOCK_SH 1
151# endif
152# ifndef LOCK_EX
153# define LOCK_EX 2
154# endif
155# ifndef LOCK_NB
156# define LOCK_NB 4
157# endif
158# ifndef LOCK_UN
159# define LOCK_UN 8
160# endif
161# endif /* emulating flock() */
162
163#endif /* no flock() */
55497cff 164
85ab1d1d
JH		 165#define ZBTLEN 10
166static char zero_but_true[ZBTLEN + 1] = "0 but true";
167
5ff3f7a4
GS		 168#if defined(I_SYS_ACCESS) && !defined(R_OK)
169# include <sys/access.h>
170#endif
171
c529f79d
CB		 172#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173# define FD_CLOEXEC 1 /* NeXT needs this */
174#endif
175
a4af207c
JH		 176#include "reentr.h"
177
5ff3f7a4
GS		 178#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
179#undef PERL_EFF_ACCESS_W_OK
180#undef PERL_EFF_ACCESS_X_OK
181
182/* F_OK unused: if stat() cannot find it... */
183
184#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 185 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 186# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
187# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
188# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
189#endif
190
191#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 192# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 193# include <sys/security.h>
194# endif
c955f117
JH		 195# ifdef ACC_SELF
196 /* HP SecureWare */
197# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
198# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
199# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
200# else
201 /* SCO */
202# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
203# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
204# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
205# endif
5ff3f7a4
GS		 206#endif
207
208#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 209 /* AIX */
5ff3f7a4
GS		 210# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
211# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
212# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
213#endif
214
327c3667
GS		 215#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
216 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
217 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 218/* The Hard Way. */
327c3667 219STATIC int
7f4774ae 220S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 221{
5ff3f7a4
GS		 222 Uid_t ruid = getuid();
223 Uid_t euid = geteuid();
224 Gid_t rgid = getgid();
225 Gid_t egid = getegid();
226 int res;
227
146174a9 228 LOCK_CRED_MUTEX;
5ff3f7a4 229#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 230 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 231#else
232#ifdef HAS_SETREUID
233 if (setreuid(euid, ruid))
234#else
235#ifdef HAS_SETRESUID
236 if (setresuid(euid, ruid, (Uid_t)-1))
237#endif
238#endif
cea2e8a9 239 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 240#endif
241
242#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 243 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 244#else
245#ifdef HAS_SETREGID
246 if (setregid(egid, rgid))
247#else
248#ifdef HAS_SETRESGID
249 if (setresgid(egid, rgid, (Gid_t)-1))
250#endif
251#endif
cea2e8a9 252 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 253#endif
254
255 res = access(path, mode);
256
257#ifdef HAS_SETREUID
258 if (setreuid(ruid, euid))
259#else
260#ifdef HAS_SETRESUID
261 if (setresuid(ruid, euid, (Uid_t)-1))
262#endif
263#endif
cea2e8a9 264 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 265
266#ifdef HAS_SETREGID
267 if (setregid(rgid, egid))
268#else
269#ifdef HAS_SETRESGID
270 if (setresgid(rgid, egid, (Gid_t)-1))
271#endif
272#endif
cea2e8a9 273 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 274 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 275
276 return res;
277}
278# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
279# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
280# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
281#endif
282
283#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 284/* With it or without it: anyway you get a warning: either that
285 it is unused, or it is declared static and never defined.
286 */
327c3667 287STATIC int
7f4774ae 288S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 289{
cea2e8a9 290 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 291 /*NOTREACHED*/
292 return -1;
293}
294#endif
295
a0d0e21e
LW		 296PP(pp_backtick)
297{
39644a26 298 dSP; dTARGET;
760ac839 299 PerlIO *fp;
2d8e6c8d
GS		 300 STRLEN n_a;
301 char *tmps = POPpx;
54310121 302 I32 gimme = GIMME_V;
16fe6d59 303 char *mode = "r";
54310121 304
a0d0e21e 305 TAINT_PROPER("``");
16fe6d59
GS		 306 if (PL_op->op_private & OPpOPEN_IN_RAW)
307 mode = "rb";
308 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
309 mode = "rt";
310 fp = PerlProc_popen(tmps, mode);
a0d0e21e 311 if (fp) {
ac27b0f5
NIS		 312 char *type = NULL;
313 if (PL_curcop->cop_io) {
314 type = SvPV_nolen(PL_curcop->cop_io);
315 }
ac27b0f5
NIS		 316 if (type && *type)
317 PerlIO_apply_layers(aTHX_ fp,mode,type);
318
54310121 319 if (gimme == G_VOID) {
96827780
MB		 320 char tmpbuf[256];
321 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 322 /*SUPPRESS 530*/
323 ;
324 }
325 else if (gimme == G_SCALAR) {
fa326138
RG		 326 SV *oldrs = PL_rs;
327 PL_rs = &PL_sv_undef;
aa689395 328 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 329 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
330 /*SUPPRESS 530*/
331 ;
fa326138 332 PL_rs = oldrs;
a0d0e21e 333 XPUSHs(TARG);
aa689395 334 SvTAINTED_on(TARG);
a0d0e21e
LW		 335 }
336 else {
337 SV *sv;
338
339 for (;;) {
8d6dde3e 340 sv = NEWSV(56, 79);
a0d0e21e
LW		 341 if (sv_gets(sv, fp, 0) == Nullch) {
342 SvREFCNT_dec(sv);
343 break;
344 }
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvLEN_set(sv, SvCUR(sv)+1);
348 Renew(SvPVX(sv), SvLEN(sv), char);
349 }
aa689395 350 SvTAINTED_on(sv);
a0d0e21e
LW		 351 }
352 }
6ad3d225 353 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 354 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 355 }
356 else {
f86702cc 357 STATUS_NATIVE_SET(-1);
54310121 358 if (gimme == G_SCALAR)
a0d0e21e
LW		 359 RETPUSHUNDEF;
360 }
361
362 RETURN;
363}
364
365PP(pp_glob)
366{
367 OP *result;
f5284f61
IZ		 368 tryAMAGICunTARGET(iter, -1);
369
71686f12
GS		 370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
373
a0d0e21e 374 ENTER;
a0d0e21e 375
c90c0ff4 376#ifndef VMS
3280af22 377 if (PL_tainting) {
7bac28a0 378 /*
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
381 */
382 TAINT;
22c35a8c 383 taint_proper(PL_no_security, "glob");
7bac28a0 384 }
c90c0ff4 385#endif /* !VMS */
7bac28a0 386
3280af22
NIS		 387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 389
3280af22 390 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 391 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 392#ifndef DOSISH
393#ifndef CSH
6b88bc9c 394 *SvPVX(PL_rs) = '\n';
a0d0e21e 395#endif /* !CSH */
55497cff 396#endif /* !DOSISH */
c07a80fd 397
a0d0e21e
LW		 398 result = do_readline();
399 LEAVE;
400 return result;
401}
402
a0d0e21e
LW		 403PP(pp_rcatline)
404{
146174a9 405 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 406 return do_readline();
407}
408
409PP(pp_warn)
410{
39644a26 411 dSP; dMARK;
06bf62c7 412 SV *tmpsv;
a0d0e21e 413 char *tmps;
06bf62c7 414 STRLEN len;
a0d0e21e
LW		 415 if (SP - MARK != 1) {
416 dTARGET;
3280af22 417 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 418 tmpsv = TARG;
a0d0e21e
LW		 419 SP = MARK + 1;
420 }
421 else {
06bf62c7 422 tmpsv = TOPs;
a0d0e21e 423 }
06bf62c7
GS		 424 tmps = SvPV(tmpsv, len);
425 if (!tmps || !len) {
4e6ea2c3
GS		 426 SV *error = ERRSV;
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
06bf62c7
GS		 430 tmpsv = error;
431 tmps = SvPV(tmpsv, len);
a0d0e21e 432 }
06bf62c7
GS		 433 if (!tmps || !len)
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
435
cb50131a 436 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 437 RETSETYES;
438}
439
440PP(pp_die)
441{
39644a26 442 dSP; dMARK;
a0d0e21e 443 char *tmps;
06bf62c7
GS		 444 SV *tmpsv;
445 STRLEN len;
446 bool multiarg = 0;
96e176bf
CL		 447#ifdef VMS
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
449#endif
a0d0e21e
LW		 450 if (SP - MARK != 1) {
451 dTARGET;
3280af22 452 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 453 tmpsv = TARG;
454 tmps = SvPV(tmpsv, len);
455 multiarg = 1;
a0d0e21e
LW		 456 SP = MARK + 1;
457 }
458 else {
4e6ea2c3 459 tmpsv = TOPs;
bf12611a 460 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 461 }
06bf62c7 462 if (!tmps || !len) {
4e6ea2c3
GS		 463 SV *error = ERRSV;
464 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
466 if (!multiarg)
4e6ea2c3 467 SvSetSV(error,tmpsv);
06bf62c7 468 else if (sv_isobject(error)) {
05423cc9
GS		 469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
471 if (gv) {
146174a9 472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 474 EXTEND(SP, 3);
475 PUSHMARK(SP);
476 PUSHs(error);
477 PUSHs(file);
478 PUSHs(line);
479 PUTBACK;
864dbfa3
GS		 480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 482 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 483 }
484 }
b3fe4827 485 DIE(aTHX_ Nullformat);
4e6ea2c3
GS		 486 }
487 else {
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 490 tmpsv = error;
491 tmps = SvPV(tmpsv, len);
4e6ea2c3 492 }
a0d0e21e 493 }
06bf62c7
GS		 494 if (!tmps || !len)
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
496
cb50131a 497 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 498}
499
500/* I/O. */
501
502PP(pp_open)
503{
39644a26 504 dSP;
a567e93b
NIS		 505 dMARK; dORIGMARK;
506 dTARGET;
a0d0e21e
LW		 507 GV *gv;
508 SV *sv;
5b468f54 509 IO *io;
a0d0e21e
LW		 510 char *tmps;
511 STRLEN len;
4592e6ca 512 MAGIC *mg;
a567e93b 513 bool ok;
a0d0e21e 514
a567e93b 515 gv = (GV *)*++MARK;
5f05dabc 516 if (!isGV(gv))
cea2e8a9 517 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 518 if ((io = GvIOp(gv)))
36477c24 519 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 520
5b468f54 521 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
5b468f54 524 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 525 PUSHMARK(MARK);
4592e6ca
NIS		 526 PUTBACK;
527 ENTER;
864dbfa3 528 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 529 LEAVE;
530 SPAGAIN;
531 RETURN;
532 }
533
a567e93b
NIS		 534 if (MARK < SP) {
535 sv = *++MARK;
536 }
537 else {
538 sv = GvSV(gv);
539 }
540
a0d0e21e 541 tmps = SvPV(sv, len);
a567e93b
NIS		 542 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
543 SP = ORIGMARK;
544 if (ok)
3280af22
NIS		 545 PUSHi( (I32)PL_forkprocess );
546 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 547 PUSHi(0);
548 else
549 RETPUSHUNDEF;
550 RETURN;
551}
552
553PP(pp_close)
554{
39644a26 555 dSP;
a0d0e21e 556 GV *gv;
5b468f54 557 IO *io;
1d603a67 558 MAGIC *mg;
a0d0e21e
LW		 559
560 if (MAXARG == 0)
3280af22 561 gv = PL_defoutgv;
a0d0e21e
LW		 562 else
563 gv = (GV*)POPs;
1d603a67 564
5b468f54
AMS		 565 if (gv && (io = GvIO(gv))
566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
567 {
1d603a67 568 PUSHMARK(SP);
5b468f54 569 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 570 PUTBACK;
571 ENTER;
864dbfa3 572 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 573 LEAVE;
574 SPAGAIN;
575 RETURN;
576 }
a0d0e21e 577 EXTEND(SP, 1);
54310121 578 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 579 RETURN;
580}
581
582PP(pp_pipe_op)
583{
a0d0e21e 584#ifdef HAS_PIPE
9cad6237 585 dSP;
a0d0e21e
LW		 586 GV *rgv;
587 GV *wgv;
588 register IO *rstio;
589 register IO *wstio;
590 int fd[2];
591
592 wgv = (GV*)POPs;
593 rgv = (GV*)POPs;
594
595 if (!rgv || !wgv)
596 goto badexit;
597
4633a7c4 598 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 599 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 600 rstio = GvIOn(rgv);
601 wstio = GvIOn(wgv);
602
603 if (IoIFP(rstio))
604 do_close(rgv, FALSE);
605 if (IoIFP(wstio))
606 do_close(wgv, FALSE);
607
6ad3d225 608 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 609 goto badexit;
610
479b2847
GS		 611 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
b5ac89c3 613 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 614 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 615 IoTYPE(rstio) = IoTYPE_RDONLY;
616 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 617
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 620 else PerlLIO_close(fd[0]);
760ac839 621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 622 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 623 goto badexit;
624 }
4771b018
GS		 625#if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
628#endif
a0d0e21e
LW		 629 RETPUSHYES;
630
631badexit:
632 RETPUSHUNDEF;
633#else
cea2e8a9 634 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 635#endif
636}
637
638PP(pp_fileno)
639{
39644a26 640 dSP; dTARGET;
a0d0e21e
LW		 641 GV *gv;
642 IO *io;
760ac839 643 PerlIO *fp;
4592e6ca
NIS		 644 MAGIC *mg;
645
a0d0e21e
LW		 646 if (MAXARG < 1)
647 RETPUSHUNDEF;
648 gv = (GV*)POPs;
4592e6ca 649
5b468f54
AMS		 650 if (gv && (io = GvIO(gv))
651 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
652 {
4592e6ca 653 PUSHMARK(SP);
5b468f54 654 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 655 PUTBACK;
656 ENTER;
864dbfa3 657 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 658 LEAVE;
659 SPAGAIN;
660 RETURN;
661 }
662
c289d2f7
JH		 663 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
664 /* Can't do this because people seem to do things like
665 defined(fileno($foo)) to check whether $foo is a valid fh.
666 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
667 report_evil_fh(gv, io, PL_op->op_type);
668 */
a0d0e21e 669 RETPUSHUNDEF;
c289d2f7
JH		 670 }
671
760ac839 672 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 673 RETURN;
674}
675
676PP(pp_umask)
677{
39644a26 678 dSP; dTARGET;
d7e492a4 679#ifdef HAS_UMASK
761237fe 680 Mode_t anum;
a0d0e21e 681
a0d0e21e 682 if (MAXARG < 1) {
6ad3d225
GS		 683 anum = PerlLIO_umask(0);
684 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 685 }
686 else
6ad3d225 687 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 688 TAINT_PROPER("umask");
689 XPUSHi(anum);
690#else
eec2d3df
GS		 691 /* Only DIE if trying to restrict permissions on `user' (self).
692 * Otherwise it's harmless and more useful to just return undef
693 * since 'group' and 'other' concepts probably don't exist here. */
694 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 695 DIE(aTHX_ "umask not implemented");
6b88bc9c 696 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 697#endif
698 RETURN;
699}
700
701PP(pp_binmode)
702{
39644a26 703 dSP;
a0d0e21e
LW		 704 GV *gv;
705 IO *io;
760ac839 706 PerlIO *fp;
4592e6ca 707 MAGIC *mg;
16fe6d59 708 SV *discp = Nullsv;
a0d0e21e
LW		 709
710 if (MAXARG < 1)
711 RETPUSHUNDEF;
60382766 712 if (MAXARG > 1) {
16fe6d59 713 discp = POPs;
60382766 714 }
a0d0e21e 715
301e8125 716 gv = (GV*)POPs;
4592e6ca 717
5b468f54
AMS		 718 if (gv && (io = GvIO(gv))
719 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
720 {
4592e6ca 721 PUSHMARK(SP);
5b468f54 722 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 723 if (discp)
724 XPUSHs(discp);
4592e6ca
NIS		 725 PUTBACK;
726 ENTER;
864dbfa3 727 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 728 LEAVE;
729 SPAGAIN;
730 RETURN;
731 }
a0d0e21e
LW		 732
733 EXTEND(SP, 1);
50f846a7 734 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 735 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
736 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 737 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 738 RETPUSHUNDEF;
739 }
a0d0e21e 740
40d98b49 741 PUTBACK;
60382766 742 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49
JH		 743 (discp) ? SvPV_nolen(discp) : Nullch)) {
744 SPAGAIN;
a0d0e21e 745 RETPUSHYES;
40d98b49
JH		 746 }
747 else {
748 SPAGAIN;
a0d0e21e 749 RETPUSHUNDEF;
40d98b49 750 }
a0d0e21e
LW		 751}
752
753PP(pp_tie)
754{
39644a26 755 dSP;
e336de0d 756 dMARK;
a0d0e21e
LW		 757 SV *varsv;
758 HV* stash;
759 GV *gv;
a0d0e21e 760 SV *sv;
3280af22 761 I32 markoff = MARK - PL_stack_base;
a0d0e21e 762 char *methname;
14befaf4 763 int how = PERL_MAGIC_tied;
e336de0d 764 U32 items;
2d8e6c8d 765 STRLEN n_a;
a0d0e21e 766
e336de0d 767 varsv = *++MARK;
6b05c17a
NIS		 768 switch(SvTYPE(varsv)) {
769 case SVt_PVHV:
770 methname = "TIEHASH";
03c6e78a 771 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 772 break;
773 case SVt_PVAV:
774 methname = "TIEARRAY";
775 break;
776 case SVt_PVGV:
7fb37951
AMS		 777#ifdef GV_UNIQUE_CHECK
778 if (GvUNIQUE((GV*)varsv)) {
779 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 780 }
781#endif
6b05c17a 782 methname = "TIEHANDLE";
14befaf4 783 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 784 /* For tied filehandles, we apply tiedscalar magic to the IO
785 slot of the GP rather than the GV itself. AMS 20010812 */
786 if (!GvIOp(varsv))
787 GvIOp(varsv) = newIO();
788 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 789 break;
790 default:
791 methname = "TIESCALAR";
14befaf4 792 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 793 break;
794 }
e336de0d
GS		 795 items = SP - MARK++;
796 if (sv_isobject(*MARK)) {
6b05c17a 797 ENTER;
e788e7d3 798 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 799 PUSHMARK(SP);
eb160463 800 EXTEND(SP,(I32)items);
e336de0d
GS		 801 while (items--)
802 PUSHs(*MARK++);
803 PUTBACK;
864dbfa3 804 call_method(methname, G_SCALAR);
301e8125 805 }
6b05c17a 806 else {
864dbfa3 807 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 808 * perhaps to get different error message ?
809 */
e336de0d 810 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 811 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 812 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 813 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 814 }
815 ENTER;
e788e7d3 816 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 817 PUSHMARK(SP);
eb160463 818 EXTEND(SP,(I32)items);
e336de0d
GS		 819 while (items--)
820 PUSHs(*MARK++);
821 PUTBACK;
864dbfa3 822 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 823 }
a0d0e21e
LW		 824 SPAGAIN;
825
826 sv = TOPs;
d3acc0f7 827 POPSTACK;
a0d0e21e 828 if (sv_isobject(sv)) {
33c27489 829 sv_unmagic(varsv, how);
ae21d580 830 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 831 if (varsv == SvRV(sv) &&
d87ebaca
YST		 832 (SvTYPE(varsv) == SVt_PVAV ||
833 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 834 Perl_croak(aTHX_
835 "Self-ties of arrays and hashes are not supported");
d87ebaca 836 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 837 }
838 LEAVE;
3280af22 839 SP = PL_stack_base + markoff;
a0d0e21e
LW		 840 PUSHs(sv);
841 RETURN;
842}
843
844PP(pp_untie)
845{
39644a26 846 dSP;
5b468f54 847 MAGIC *mg;
33c27489 848 SV *sv = POPs;
14befaf4
DM		 849 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
850 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 851
5b468f54
AMS		 852 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
853 RETPUSHYES;
854
855 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 856 SV *obj = SvRV(mg->mg_obj);
857 GV *gv;
858 CV *cv = NULL;
fa2b88e0
JS		 859 if (obj) {
860 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
861 isGV(gv) && (cv = GvCV(gv))) {
862 PUSHMARK(SP);
863 XPUSHs(SvTIED_obj((SV*)gv, mg));
864 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
865 PUTBACK;
866 ENTER;
867 call_sv((SV *)cv, G_VOID);
868 LEAVE;
869 SPAGAIN;
870 }
871 else if (ckWARN(WARN_UNTIE)) {
872 if (mg && SvREFCNT(obj) > 1)
9014280d 873 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 874 "untie attempted while %"UVuf" inner references still exist",
875 (UV)SvREFCNT(obj) - 1 ) ;
876 }
cbdc8872 877 }
fa2b88e0 878 sv_unmagic(sv, how) ;
cbdc8872 879 }
55497cff 880 RETPUSHYES;
a0d0e21e
LW		 881}
882
c07a80fd 883PP(pp_tied)
884{
39644a26 885 dSP;
5b468f54 886 MAGIC *mg;
33c27489 887 SV *sv = POPs;
14befaf4
DM		 888 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 890
891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
892 RETPUSHUNDEF;
c07a80fd 893
155aba94 894 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 895 SV *osv = SvTIED_obj(sv, mg);
896 if (osv == mg->mg_obj)
897 osv = sv_mortalcopy(osv);
898 PUSHs(osv);
899 RETURN;
c07a80fd 900 }
c07a80fd 901 RETPUSHUNDEF;
902}
903
a0d0e21e
LW		 904PP(pp_dbmopen)
905{
39644a26 906 dSP;
a0d0e21e
LW		 907 HV *hv;
908 dPOPPOPssrl;
909 HV* stash;
910 GV *gv;
a0d0e21e
LW		 911 SV *sv;
912
913 hv = (HV*)POPs;
914
3280af22 915 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 916 sv_setpv(sv, "AnyDBM_File");
917 stash = gv_stashsv(sv, FALSE);
8ebc5c01 918 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 919 PUTBACK;
864dbfa3 920 require_pv("AnyDBM_File.pm");
a0d0e21e 921 SPAGAIN;
8ebc5c01 922 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 923 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 924 }
925
57d3b86d 926 ENTER;
924508f0 927 PUSHMARK(SP);
6b05c17a 928
924508f0 929 EXTEND(SP, 5);
a0d0e21e
LW		 930 PUSHs(sv);
931 PUSHs(left);
932 if (SvIV(right))
b448e4fe 933 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 934 else
b448e4fe 935 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 936 PUSHs(right);
57d3b86d 937 PUTBACK;
864dbfa3 938 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 939 SPAGAIN;
940
941 if (!sv_isobject(TOPs)) {
924508f0
GS		 942 SP--;
943 PUSHMARK(SP);
a0d0e21e
LW		 944 PUSHs(sv);
945 PUSHs(left);
b448e4fe 946 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 947 PUSHs(right);
a0d0e21e 948 PUTBACK;
864dbfa3 949 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 950 SPAGAIN;
951 }
952
6b05c17a 953 if (sv_isobject(TOPs)) {
14befaf4
DM		 954 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
955 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 956 }
a0d0e21e
LW		 957 LEAVE;
958 RETURN;
959}
960
961PP(pp_dbmclose)
962{
cea2e8a9 963 return pp_untie();
a0d0e21e
LW		 964}
965
966PP(pp_sselect)
967{
a0d0e21e 968#ifdef HAS_SELECT
9cad6237 969 dSP; dTARGET;
a0d0e21e
LW		 970 register I32 i;
971 register I32 j;
972 register char *s;
973 register SV *sv;
65202027 974 NV value;
a0d0e21e
LW		 975 I32 maxlen = 0;
976 I32 nfound;
977 struct timeval timebuf;
978 struct timeval *tbuf = &timebuf;
979 I32 growsize;
980 char *fd_sets[4];
2d8e6c8d 981 STRLEN n_a;
a0d0e21e
LW		 982#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
983 I32 masksize;
984 I32 offset;
985 I32 k;
986
987# if BYTEORDER & 0xf0000
988# define ORDERBYTE (0x88888888 - BYTEORDER)
989# else
990# define ORDERBYTE (0x4444 - BYTEORDER)
991# endif
992
993#endif
994
995 SP -= 4;
996 for (i = 1; i <= 3; i++) {
997 if (!SvPOK(SP[i]))
998 continue;
999 j = SvCUR(SP[i]);
1000 if (maxlen < j)
1001 maxlen = j;
1002 }
1003
5ff3f7a4 1004/* little endians can use vecs directly */
e366b469 1005#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1006# ifdef NFDBITS
a0d0e21e 1007
5ff3f7a4
GS		 1008# ifndef NBBY
1009# define NBBY 8
1010# endif
a0d0e21e
LW		 1011
1012 masksize = NFDBITS / NBBY;
5ff3f7a4 1013# else
a0d0e21e 1014 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1015# endif
a0d0e21e
LW		 1016 Zero(&fd_sets[0], 4, char*);
1017#endif
1018
e366b469
PG		 1019# if SELECT_MIN_BITS > 1
1020 /* If SELECT_MIN_BITS is greater than one we most probably will want
1021 * to align the sizes with SELECT_MIN_BITS/8 because for example
1022 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1023 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1024 * on (sets/tests/clears bits) is 32 bits. */
1025 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1026# else
1027 growsize = sizeof(fd_set);
1028# endif
1029
a0d0e21e
LW		 1030 sv = SP[4];
1031 if (SvOK(sv)) {
1032 value = SvNV(sv);
1033 if (value < 0.0)
1034 value = 0.0;
1035 timebuf.tv_sec = (long)value;
65202027 1036 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1037 timebuf.tv_usec = (long)(value * 1000000.0);
1038 }
1039 else
1040 tbuf = Null(struct timeval*);
1041
1042 for (i = 1; i <= 3; i++) {
1043 sv = SP[i];
1044 if (!SvOK(sv)) {
1045 fd_sets[i] = 0;
1046 continue;
1047 }
1048 else if (!SvPOK(sv))
2d8e6c8d 1049 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1050 j = SvLEN(sv);
1051 if (j < growsize) {
1052 Sv_Grow(sv, growsize);
a0d0e21e 1053 }
c07a80fd 1054 j = SvCUR(sv);
1055 s = SvPVX(sv) + j;
1056 while (++j <= growsize) {
1057 *s++ = '\0';
1058 }
1059
a0d0e21e
LW		 1060#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 s = SvPVX(sv);
1062 New(403, fd_sets[i], growsize, char);
1063 for (offset = 0; offset < growsize; offset += masksize) {
1064 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1065 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1066 }
1067#else
1068 fd_sets[i] = SvPVX(sv);
1069#endif
1070 }
1071
6ad3d225 1072 nfound = PerlSock_select(
a0d0e21e
LW		 1073 maxlen * 8,
1074 (Select_fd_set_t) fd_sets[1],
1075 (Select_fd_set_t) fd_sets[2],
1076 (Select_fd_set_t) fd_sets[3],
1077 tbuf);
1078 for (i = 1; i <= 3; i++) {
1079 if (fd_sets[i]) {
1080 sv = SP[i];
1081#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1082 s = SvPVX(sv);
1083 for (offset = 0; offset < growsize; offset += masksize) {
1084 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1085 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1086 }
1087 Safefree(fd_sets[i]);
1088#endif
1089 SvSETMAGIC(sv);
1090 }
1091 }
1092
1093 PUSHi(nfound);
1094 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1095 value = (NV)(timebuf.tv_sec) +
1096 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1097 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1098 sv_setnv(sv, value);
1099 }
1100 RETURN;
1101#else
cea2e8a9 1102 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1103#endif
1104}
1105
4633a7c4 1106void
864dbfa3 1107Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1108{
1109 if (gv)
1110 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1111 if (PL_defoutgv)
1112 SvREFCNT_dec(PL_defoutgv);
1113 PL_defoutgv = gv;
4633a7c4
LW		 1114}
1115
a0d0e21e
LW		 1116PP(pp_select)
1117{
39644a26 1118 dSP; dTARGET;
4633a7c4
LW		 1119 GV *newdefout, *egv;
1120 HV *hv;
1121
533c011a 1122 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1123
3280af22 1124 egv = GvEGV(PL_defoutgv);
4633a7c4 1125 if (!egv)
3280af22 1126 egv = PL_defoutgv;
4633a7c4
LW		 1127 hv = GvSTASH(egv);
1128 if (! hv)
3280af22 1129 XPUSHs(&PL_sv_undef);
4633a7c4 1130 else {
cbdc8872 1131 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1132 if (gvp && *gvp == egv) {
f7aaccc2 1133 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1134 XPUSHTARG;
1135 }
1136 else {
1137 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1138 }
4633a7c4
LW		 1139 }
1140
1141 if (newdefout) {
ded8aa31
GS		 1142 if (!GvIO(newdefout))
1143 gv_IOadd(newdefout);
4633a7c4
LW		 1144 setdefout(newdefout);
1145 }
1146
a0d0e21e
LW		 1147 RETURN;
1148}
1149
1150PP(pp_getc)
1151{
39644a26 1152 dSP; dTARGET;
a0d0e21e 1153 GV *gv;
90133b69 1154 IO *io = NULL;
2ae324a7 1155 MAGIC *mg;
a0d0e21e 1156
32da55ab 1157 if (MAXARG == 0)
3280af22 1158 gv = PL_stdingv;
a0d0e21e
LW		 1159 else
1160 gv = (GV*)POPs;
2ae324a7 1161
5b468f54
AMS		 1162 if (gv && (io = GvIO(gv))
1163 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1164 {
54310121 1165 I32 gimme = GIMME_V;
2ae324a7 1166 PUSHMARK(SP);
5b468f54 1167 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1168 PUTBACK;
1169 ENTER;
864dbfa3 1170 call_method("GETC", gimme);
2ae324a7 1171 LEAVE;
1172 SPAGAIN;
54310121 1173 if (gimme == G_SCALAR)
1174 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1175 RETURN;
1176 }
90133b69 1177 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1178 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1179 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1180 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1181 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1182 RETPUSHUNDEF;
90133b69 1183 }
bbce6d69 1184 TAINT;
a0d0e21e 1185 sv_setpv(TARG, " ");
9bc64814 1186 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1187 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1188 /* Find out how many bytes the char needs */
1189 Size_t len = UTF8SKIP(SvPVX(TARG));
1190 if (len > 1) {
1191 SvGROW(TARG,len+1);
1192 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1193 SvCUR_set(TARG,1+len);
1194 }
1195 SvUTF8_on(TARG);
1196 }
a0d0e21e
LW		 1197 PUSHTARG;
1198 RETURN;
1199}
1200
1201PP(pp_read)
1202{
cea2e8a9 1203 return pp_sysread();
a0d0e21e
LW		 1204}
1205
76e3520e 1206STATIC OP *
cea2e8a9 1207S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1208{
c09156bb 1209 register PERL_CONTEXT *cx;
54310121 1210 I32 gimme = GIMME_V;
a0d0e21e
LW		 1211
1212 ENTER;
1213 SAVETMPS;
1214
1215 push_return(retop);
146174a9 1216 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1217 PUSHFORMAT(cx);
dd2155a4 1218 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1219
4633a7c4 1220 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1221 return CvSTART(cv);
1222}
1223
1224PP(pp_enterwrite)
1225{
39644a26 1226 dSP;
a0d0e21e
LW		 1227 register GV *gv;
1228 register IO *io;
1229 GV *fgv;
1230 CV *cv;
1231
1232 if (MAXARG == 0)
3280af22 1233 gv = PL_defoutgv;
a0d0e21e
LW		 1234 else {
1235 gv = (GV*)POPs;
1236 if (!gv)
3280af22 1237 gv = PL_defoutgv;
a0d0e21e
LW		 1238 }
1239 EXTEND(SP, 1);
1240 io = GvIO(gv);
1241 if (!io) {
1242 RETPUSHNO;
1243 }
1244 if (IoFMT_GV(io))
1245 fgv = IoFMT_GV(io);
1246 else
1247 fgv = gv;
1248
1249 cv = GvFORM(fgv);
a0d0e21e 1250 if (!cv) {
2dd78f96 1251 char *name = NULL;
a0d0e21e 1252 if (fgv) {
748a9306 1253 SV *tmpsv = sv_newmortal();
43693395 1254 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1255 name = SvPV_nolen(tmpsv);
a0d0e21e 1256 }
2dd78f96
JH		 1257 if (name && *name)
1258 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1259 DIE(aTHX_ "Not a format reference");
a0d0e21e 1260 }
44a8e56a 1261 if (CvCLONE(cv))
1262 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1263
44a8e56a 1264 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1265 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1266}
1267
1268PP(pp_leavewrite)
1269{
39644a26 1270 dSP;
a0d0e21e
LW		 1271 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1272 register IO *io = GvIOp(gv);
760ac839
LW		 1273 PerlIO *ofp = IoOFP(io);
1274 PerlIO *fp;
a0d0e21e
LW		 1275 SV **newsp;
1276 I32 gimme;
c09156bb 1277 register PERL_CONTEXT *cx;
a0d0e21e 1278
760ac839 1279 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1280 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1281 if (!io || !ofp)
1282 goto forget_top;
3280af22
NIS		 1283 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1284 PL_formtarget != PL_toptarget)
a0d0e21e 1285 {
4633a7c4
LW		 1286 GV *fgv;
1287 CV *cv;
a0d0e21e
LW		 1288 if (!IoTOP_GV(io)) {
1289 GV *topgv;
46fc3d4c 1290 SV *topname;
a0d0e21e
LW		 1291
1292 if (!IoTOP_NAME(io)) {
1293 if (!IoFMT_NAME(io))
1294 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1295 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1296 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1297 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1298 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1299 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1300 else
1301 IoTOP_NAME(io) = savepv("top");
1302 }
1303 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1304 if (!topgv || !GvFORM(topgv)) {
1305 IoLINES_LEFT(io) = 100000000;
1306 goto forget_top;
1307 }
1308 IoTOP_GV(io) = topgv;
1309 }
748a9306
LW		 1310 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1311 I32 lines = IoLINES_LEFT(io);
3280af22 1312 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1313 if (lines <= 0) /* Yow, header didn't even fit!!! */
1314 goto forget_top;
748a9306
LW		 1315 while (lines-- > 0) {
1316 s = strchr(s, '\n');
1317 if (!s)
1318 break;
1319 s++;
1320 }
1321 if (s) {
d75029d0
NIS		 1322 STRLEN save = SvCUR(PL_formtarget);
1323 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1324 do_print(PL_formtarget, ofp);
1325 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1326 sv_chop(PL_formtarget, s);
1327 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1328 }
1329 }
a0d0e21e 1330 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1331 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1332 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1333 IoPAGE(io)++;
3280af22 1334 PL_formtarget = PL_toptarget;
748a9306 1335 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1336 fgv = IoTOP_GV(io);
1337 if (!fgv)
cea2e8a9 1338 DIE(aTHX_ "bad top format reference");
4633a7c4 1339 cv = GvFORM(fgv);
2dd78f96
JH		 1340 {
1341 char *name = NULL;
1342 if (!cv) {
1343 SV *sv = sv_newmortal();
1344 gv_efullname4(sv, fgv, Nullch, FALSE);
1345 name = SvPV_nolen(sv);
1346 }
1347 if (name && *name)
1348 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1349 /* why no:
1350 else
1351 DIE(aTHX_ "Undefined top format called");
1352 ?*/
4633a7c4 1353 }
44a8e56a 1354 if (CvCLONE(cv))
1355 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1356 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1357 }
1358
1359 forget_top:
3280af22 1360 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1361 POPFORMAT(cx);
1362 LEAVE;
1363
1364 fp = IoOFP(io);
1365 if (!fp) {
599cee73 1366 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1367 if (IoIFP(io)) {
2dd78f96
JH		 1368 /* integrate with report_evil_fh()? */
1369 char *name = NULL;
1370 if (isGV(gv)) {
1371 SV* sv = sv_newmortal();
1372 gv_efullname4(sv, gv, Nullch, FALSE);
1373 name = SvPV_nolen(sv);
1374 }
1375 if (name && *name)
9014280d 1376 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1377 "Filehandle %s opened only for input", name);
1378 else
9014280d 1379 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1380 "Filehandle opened only for input");
cb50131a 1381 }
599cee73 1382 else if (ckWARN(WARN_CLOSED))
bc37a18f 1383 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1384 }
3280af22 1385 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1386 }
1387 else {
3280af22 1388 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1389 if (ckWARN(WARN_IO))
9014280d 1390 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1391 }
d75029d0 1392 if (!do_print(PL_formtarget, fp))
3280af22 1393 PUSHs(&PL_sv_no);
a0d0e21e 1394 else {
3280af22
NIS		 1395 FmLINES(PL_formtarget) = 0;
1396 SvCUR_set(PL_formtarget, 0);
1397 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1398 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1399 (void)PerlIO_flush(fp);
3280af22 1400 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1401 }
1402 }
9cbac4c7 1403 /* bad_ofp: */
3280af22 1404 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1405 PUTBACK;
1406 return pop_return();
1407}
1408
1409PP(pp_prtf)
1410{
39644a26 1411 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1412 GV *gv;
1413 IO *io;
760ac839 1414 PerlIO *fp;
26db47c4 1415 SV *sv;
46fc3d4c 1416 MAGIC *mg;
a0d0e21e 1417
533c011a 1418 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1419 gv = (GV*)*++MARK;
1420 else
3280af22 1421 gv = PL_defoutgv;
46fc3d4c 1422
5b468f54
AMS		 1423 if (gv && (io = GvIO(gv))
1424 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1425 {
46fc3d4c 1426 if (MARK == ORIGMARK) {
4352c267 1427 MEXTEND(SP, 1);
46fc3d4c 1428 ++MARK;
1429 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1430 ++SP;
1431 }
1432 PUSHMARK(MARK - 1);
5b468f54 1433 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1434 PUTBACK;
1435 ENTER;
864dbfa3 1436 call_method("PRINTF", G_SCALAR);
46fc3d4c 1437 LEAVE;
1438 SPAGAIN;
1439 MARK = ORIGMARK + 1;
1440 *MARK = *SP;
1441 SP = MARK;
1442 RETURN;
1443 }
1444
26db47c4 1445 sv = NEWSV(0,0);
a0d0e21e 1446 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1447 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1448 report_evil_fh(gv, io, PL_op->op_type);
93189314 1449 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1450 goto just_say_no;
1451 }
1452 else if (!(fp = IoOFP(io))) {
599cee73 1453 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1454 /* integrate with report_evil_fh()? */
cb50131a 1455 if (IoIFP(io)) {
2dd78f96
JH		 1456 char *name = NULL;
1457 if (isGV(gv)) {
1458 gv_efullname4(sv, gv, Nullch, FALSE);
1459 name = SvPV_nolen(sv);
1460 }
1461 if (name && *name)
9014280d 1462 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1463 "Filehandle %s opened only for input", name);
1464 else
9014280d 1465 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1466 "Filehandle opened only for input");
cb50131a 1467 }
599cee73 1468 else if (ckWARN(WARN_CLOSED))
bc37a18f 1469 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1470 }
93189314 1471 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1472 goto just_say_no;
1473 }
1474 else {
1475 do_sprintf(sv, SP - MARK, MARK + 1);
1476 if (!do_print(sv, fp))
1477 goto just_say_no;
1478
1479 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1480 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1481 goto just_say_no;
1482 }
1483 SvREFCNT_dec(sv);
1484 SP = ORIGMARK;
3280af22 1485 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1486 RETURN;
1487
1488 just_say_no:
1489 SvREFCNT_dec(sv);
1490 SP = ORIGMARK;
3280af22 1491 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1492 RETURN;
1493}
1494
c07a80fd 1495PP(pp_sysopen)
1496{
39644a26 1497 dSP;
c07a80fd 1498 GV *gv;
c07a80fd 1499 SV *sv;
1500 char *tmps;
1501 STRLEN len;
1502 int mode, perm;
1503
1504 if (MAXARG > 3)
1505 perm = POPi;
1506 else
1507 perm = 0666;
1508 mode = POPi;
1509 sv = POPs;
1510 gv = (GV *)POPs;
1511
4592e6ca
NIS		 1512 /* Need TIEHANDLE method ? */
1513
c07a80fd 1514 tmps = SvPV(sv, len);
1515 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1516 IoLINES(GvIOp(gv)) = 0;
3280af22 1517 PUSHs(&PL_sv_yes);
c07a80fd 1518 }
1519 else {
3280af22 1520 PUSHs(&PL_sv_undef);
c07a80fd 1521 }
1522 RETURN;
1523}
1524
a0d0e21e
LW		 1525PP(pp_sysread)
1526{
39644a26 1527 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1528 int offset;
1529 GV *gv;
1530 IO *io;
1531 char *buffer;
5b54f415 1532 SSize_t length;
eb5c063a 1533 SSize_t count;
1e422769 1534 Sock_size_t bufsize;
748a9306 1535 SV *bufsv;
a0d0e21e 1536 STRLEN blen;
2ae324a7 1537 MAGIC *mg;
eb5c063a
NIS		 1538 int fp_utf8;
1539 Size_t got = 0;
1540 Size_t wanted;
1d636c13 1541 bool charstart = FALSE;
87330c3c
JH		 1542 STRLEN charskip = 0;
1543 STRLEN skip = 0;
a0d0e21e
LW		 1544
1545 gv = (GV*)*++MARK;
5b468f54
AMS		 1546 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1547 && gv && (io = GvIO(gv))
1548 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1549 {
2ae324a7 1550 SV *sv;
1551
1552 PUSHMARK(MARK-1);
5b468f54 1553 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1554 ENTER;
864dbfa3 1555 call_method("READ", G_SCALAR);
2ae324a7 1556 LEAVE;
1557 SPAGAIN;
1558 sv = POPs;
1559 SP = ORIGMARK;
1560 PUSHs(sv);
1561 RETURN;
1562 }
1563
a0d0e21e
LW		 1564 if (!gv)
1565 goto say_undef;
748a9306 1566 bufsv = *++MARK;
ff68c719 1567 if (! SvOK(bufsv))
1568 sv_setpvn(bufsv, "", 0);
a0d0e21e 1569 length = SvIVx(*++MARK);
748a9306 1570 SETERRNO(0,0);
a0d0e21e
LW		 1571 if (MARK < SP)
1572 offset = SvIVx(*++MARK);
1573 else
1574 offset = 0;
1575 io = GvIO(gv);
b5fe5ca2
SR		 1576 if (!io || !IoIFP(io)) {
1577 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1578 report_evil_fh(gv, io, PL_op->op_type);
1579 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1580 goto say_undef;
b5fe5ca2 1581 }
0064a8a9 1582 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1583 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1584 /* UTF8 may not have been set if they are all low bytes */
1585 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1586 }
1587 else {
1588 buffer = SvPV_force(bufsv, blen);
1589 }
1590 if (length < 0)
1591 DIE(aTHX_ "Negative length");
eb5c063a 1592 wanted = length;
7d59b7e4 1593
d0965105
JH		 1594 charstart = TRUE;
1595 charskip = 0;
87330c3c 1596 skip = 0;
d0965105 1597
a0d0e21e 1598#ifdef HAS_SOCKET
533c011a 1599 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1600 char namebuf[MAXPATHLEN];
17a8c7ba 1601#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1602 bufsize = sizeof (struct sockaddr_in);
1603#else
46fc3d4c 1604 bufsize = sizeof namebuf;
490ab354 1605#endif
abf95952
IZ		 1606#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1607 if (bufsize >= 256)
1608 bufsize = 255;
1609#endif
eb160463 1610 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1611 /* 'offset' means 'flags' here */
eb5c063a 1612 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1613 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1614 if (count < 0)
a0d0e21e 1615 RETPUSHUNDEF;
4107cc59
OF		 1616#ifdef EPOC
1617 /* Bogus return without padding */
1618 bufsize = sizeof (struct sockaddr_in);
1619#endif
eb5c063a 1620 SvCUR_set(bufsv, count);
748a9306
LW		 1621 *SvEND(bufsv) = '\0';
1622 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1623 if (fp_utf8)
1624 SvUTF8_on(bufsv);
748a9306 1625 SvSETMAGIC(bufsv);
aac0dd9a 1626 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1627 if (!(IoFLAGS(io) & IOf_UNTAINT))
1628 SvTAINTED_on(bufsv);
a0d0e21e 1629 SP = ORIGMARK;
46fc3d4c 1630 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1631 PUSHs(TARG);
1632 RETURN;
1633 }
1634#else
911d147d 1635 if (PL_op->op_type == OP_RECV)
cea2e8a9 1636 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1637#endif
eb5c063a
NIS		 1638 if (DO_UTF8(bufsv)) {
1639 /* offset adjust in characters not bytes */
1640 blen = sv_len_utf8(bufsv);
7d59b7e4 1641 }
bbce6d69 1642 if (offset < 0) {
eb160463 1643 if (-offset > (int)blen)
cea2e8a9 1644 DIE(aTHX_ "Offset outside string");
bbce6d69 1645 offset += blen;
1646 }
eb5c063a
NIS		 1647 if (DO_UTF8(bufsv)) {
1648 /* convert offset-as-chars to offset-as-bytes */
1649 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1650 }
1651 more_bytes:
cd52b7b2 1652 bufsize = SvCUR(bufsv);
eb160463 1653 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1654 if (offset > bufsize) { /* Zero any newly allocated space */
1655 Zero(buffer+bufsize, offset-bufsize, char);
1656 }
eb5c063a
NIS		 1657 buffer = buffer + offset;
1658
533c011a 1659 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1660#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1661 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1662 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1663 buffer, length, 0);
a7092146
GS		 1664 }
1665 else
1666#endif
1667 {
eb5c063a
NIS		 1668 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1669 buffer, length);
a7092146 1670 }
a0d0e21e
LW		 1671 }
1672 else
1673#ifdef HAS_SOCKET__bad_code_maybe
50952442 1674 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1675 char namebuf[MAXPATHLEN];
490ab354
JH		 1676#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1677 bufsize = sizeof (struct sockaddr_in);
1678#else
46fc3d4c 1679 bufsize = sizeof namebuf;
490ab354 1680#endif
eb5c063a 1681 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1682 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1683 }
1684 else
1685#endif
3b02c43c 1686 {
eb5c063a
NIS		 1687 count = PerlIO_read(IoIFP(io), buffer, length);
1688 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1689 if (count == 0 && PerlIO_error(IoIFP(io)))
1690 count = -1;
3b02c43c 1691 }
eb5c063a 1692 if (count < 0) {
a00b5bd3 1693 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
af8c498a 1694 {
2dd78f96
JH		 1695 /* integrate with report_evil_fh()? */
1696 char *name = NULL;
1697 if (isGV(gv)) {
1698 SV* sv = sv_newmortal();
1699 gv_efullname4(sv, gv, Nullch, FALSE);
1700 name = SvPV_nolen(sv);
1701 }
1702 if (name && *name)
9014280d 1703 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1704 "Filehandle %s opened only for output", name);
1705 else
9014280d 1706 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1707 "Filehandle opened only for output");
af8c498a 1708 }
a0d0e21e 1709 goto say_undef;
af8c498a 1710 }
eb5c063a 1711 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1712 *SvEND(bufsv) = '\0';
1713 (void)SvPOK_only(bufsv);
0064a8a9 1714 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1715 /* Look at utf8 we got back and count the characters */
1716 char *bend = buffer + count;
1717 while (buffer < bend) {
d0965105
JH		 1718 if (charstart) {
1719 skip = UTF8SKIP(buffer);
1720 charskip = 0;
1721 }
1722 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1723 /* partial character - try for rest of it */
1724 length = skip - (bend-buffer);
1725 offset = bend - SvPVX(bufsv);
d0965105
JH		 1726 charstart = FALSE;
1727 charskip += count;
eb5c063a
NIS		 1728 goto more_bytes;
1729 }
1730 else {
1731 got++;
1732 buffer += skip;
d0965105
JH		 1733 charstart = TRUE;
1734 charskip = 0;
eb5c063a
NIS		 1735 }
1736 }
1737 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1738 provided amount read (count) was what was requested (length)
1739 */
1740 if (got < wanted && count == length) {
d0965105 1741 length = wanted - got;
eb5c063a
NIS		 1742 offset = bend - SvPVX(bufsv);
1743 goto more_bytes;
1744 }
1745 /* return value is character count */
1746 count = got;
1747 SvUTF8_on(bufsv);
1748 }
748a9306 1749 SvSETMAGIC(bufsv);
aac0dd9a 1750 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1751 if (!(IoFLAGS(io) & IOf_UNTAINT))
1752 SvTAINTED_on(bufsv);
a0d0e21e 1753 SP = ORIGMARK;
eb5c063a 1754 PUSHi(count);
a0d0e21e
LW		 1755 RETURN;
1756
1757 say_undef:
1758 SP = ORIGMARK;
1759 RETPUSHUNDEF;
1760}
1761
1762PP(pp_syswrite)
1763{
39644a26 1764 dSP;
092bebab
JH		 1765 int items = (SP - PL_stack_base) - TOPMARK;
1766 if (items == 2) {
9f089d78 1767 SV *sv;
092bebab 1768 EXTEND(SP, 1);
9f089d78
SB		 1769 sv = sv_2mortal(newSViv(sv_len(*SP)));
1770 PUSHs(sv);
092bebab
JH		 1771 PUTBACK;
1772 }
cea2e8a9 1773 return pp_send();
a0d0e21e
LW		 1774}
1775
1776PP(pp_send)
1777{
39644a26 1778 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1779 GV *gv;
1780 IO *io;
748a9306 1781 SV *bufsv;
a0d0e21e 1782 char *buffer;
8c99d73e
GS		 1783 Size_t length;
1784 SSize_t retval;
a0d0e21e 1785 STRLEN blen;
1d603a67 1786 MAGIC *mg;
a0d0e21e
LW		 1787
1788 gv = (GV*)*++MARK;
14befaf4 1789 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1790 && gv && (io = GvIO(gv))
1791 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1792 {
1d603a67
GB		 1793 SV *sv;
1794
1795 PUSHMARK(MARK-1);
5b468f54 1796 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1797 ENTER;
864dbfa3 1798 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1799 LEAVE;
1800 SPAGAIN;
1801 sv = POPs;
1802 SP = ORIGMARK;
1803 PUSHs(sv);
1804 RETURN;
1805 }
a0d0e21e
LW		 1806 if (!gv)
1807 goto say_undef;
748a9306 1808 bufsv = *++MARK;
8c99d73e 1809#if Size_t_size > IVSIZE
3c001241 1810 length = (Size_t)SvNVx(*++MARK);
146174a9 1811#else
3c001241 1812 length = (Size_t)SvIVx(*++MARK);
146174a9 1813#endif
3c001241 1814 if ((SSize_t)length < 0)
cea2e8a9 1815 DIE(aTHX_ "Negative length");
748a9306 1816 SETERRNO(0,0);
a0d0e21e
LW		 1817 io = GvIO(gv);
1818 if (!io || !IoIFP(io)) {
8c99d73e 1819 retval = -1;
bc37a18f
RG		 1820 if (ckWARN(WARN_CLOSED))
1821 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1822 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1823 goto say_undef;
1824 }
1825
1826 if (PerlIO_isutf8(IoIFP(io))) {
1827 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1828 }
7d59b7e4
NIS		 1829 else {
1830 if (DO_UTF8(bufsv))
1831 sv_utf8_downgrade(bufsv, FALSE);
1832 buffer = SvPV(bufsv, blen);
1833 }
1834
1835 if (PL_op->op_type == OP_SYSWRITE) {
1836 IV offset;
1837 if (DO_UTF8(bufsv)) {
1838 /* length and offset are in chars */
1839 blen = sv_len_utf8(bufsv);
1840 }
bbce6d69 1841 if (MARK < SP) {
a0d0e21e 1842 offset = SvIVx(*++MARK);
bbce6d69 1843 if (offset < 0) {
eb160463 1844 if (-offset > (IV)blen)
cea2e8a9 1845 DIE(aTHX_ "Offset outside string");
bbce6d69 1846 offset += blen;
eb160463 1847 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1848 DIE(aTHX_ "Offset outside string");
bbce6d69 1849 } else
a0d0e21e
LW		 1850 offset = 0;
1851 if (length > blen - offset)
1852 length = blen - offset;
7d59b7e4 1853 if (DO_UTF8(bufsv)) {
c8d31a35 1854 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1855 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1856 }
1857 else {
1858 buffer = buffer+offset;
1859 }
a7092146 1860#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1861 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1862 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1863 buffer, length, 0);
a7092146
GS		 1864 }
1865 else
1866#endif
1867 {
94e4c244 1868 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1869 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1870 buffer, length);
a7092146 1871 }
a0d0e21e
LW		 1872 }
1873#ifdef HAS_SOCKET
1874 else if (SP > MARK) {
1875 char *sockbuf;
1876 STRLEN mlen;
1877 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1878 /* length is really flags */
8c99d73e
GS		 1879 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1880 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1881 }
1882 else
7d59b7e4 1883 /* length is really flags */
8c99d73e 1884 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1885#else
1886 else
cea2e8a9 1887 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1888#endif
8c99d73e 1889 if (retval < 0)
a0d0e21e
LW		 1890 goto say_undef;
1891 SP = ORIGMARK;
f36eea10
JH		 1892 if (DO_UTF8(bufsv))
1893 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1894#if Size_t_size > IVSIZE
1895 PUSHn(retval);
1896#else
1897 PUSHi(retval);
1898#endif
a0d0e21e
LW		 1899 RETURN;
1900
1901 say_undef:
1902 SP = ORIGMARK;
1903 RETPUSHUNDEF;
1904}
1905
1906PP(pp_recv)
1907{
cea2e8a9 1908 return pp_sysread();
a0d0e21e
LW		 1909}
1910
1911PP(pp_eof)
1912{
39644a26 1913 dSP;
a0d0e21e 1914 GV *gv;
5b468f54 1915 IO *io;
4592e6ca 1916 MAGIC *mg;
a0d0e21e 1917
32da55ab 1918 if (MAXARG == 0) {
146174a9
CB		 1919 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1920 IO *io;
ed2c6b9b 1921 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1922 io = GvIO(gv);
1923 if (io && !IoIFP(io)) {
1924 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1925 IoLINES(io) = 0;
1926 IoFLAGS(io) &= ~IOf_START;
1927 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1928 sv_setpvn(GvSV(gv), "-", 1);
1929 SvSETMAGIC(GvSV(gv));
1930 }
1931 else if (!nextargv(gv))
1932 RETPUSHYES;
1933 }
1934 }
1935 else
1936 gv = PL_last_in_gv; /* eof */
1937 }
a0d0e21e 1938 else
146174a9 1939 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1940
5b468f54
AMS		 1941 if (gv && (io = GvIO(gv))
1942 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1943 {
4592e6ca 1944 PUSHMARK(SP);
5b468f54 1945 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1946 PUTBACK;
1947 ENTER;
864dbfa3 1948 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1949 LEAVE;
1950 SPAGAIN;
1951 RETURN;
1952 }
1953
54310121 1954 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1955 RETURN;
1956}
1957
1958PP(pp_tell)
1959{
39644a26 1960 dSP; dTARGET;
301e8125 1961 GV *gv;
5b468f54 1962 IO *io;
4592e6ca 1963 MAGIC *mg;
a0d0e21e 1964
32da55ab 1965 if (MAXARG == 0)
3280af22 1966 gv = PL_last_in_gv;
a0d0e21e 1967 else
3280af22 1968 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1969
5b468f54
AMS		 1970 if (gv && (io = GvIO(gv))
1971 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1972 {
4592e6ca 1973 PUSHMARK(SP);
5b468f54 1974 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1975 PUTBACK;
1976 ENTER;
864dbfa3 1977 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1978 LEAVE;
1979 SPAGAIN;
1980 RETURN;
1981 }
1982
146174a9
CB		 1983#if LSEEKSIZE > IVSIZE
1984 PUSHn( do_tell(gv) );
1985#else
a0d0e21e 1986 PUSHi( do_tell(gv) );
146174a9 1987#endif
a0d0e21e
LW		 1988 RETURN;
1989}
1990
1991PP(pp_seek)
1992{
cea2e8a9 1993 return pp_sysseek();
137443ea 1994}
1995
1996PP(pp_sysseek)
1997{
39644a26 1998 dSP;
a0d0e21e 1999 GV *gv;
5b468f54 2000 IO *io;
a0d0e21e 2001 int whence = POPi;
146174a9
CB		 2002#if LSEEKSIZE > IVSIZE
2003 Off_t offset = (Off_t)SvNVx(POPs);
2004#else
d9b3e12d 2005 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2006#endif
4592e6ca 2007 MAGIC *mg;
a0d0e21e 2008
3280af22 2009 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2010
5b468f54
AMS		 2011 if (gv && (io = GvIO(gv))
2012 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2013 {
4592e6ca 2014 PUSHMARK(SP);
5b468f54 2015 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2016#if LSEEKSIZE > IVSIZE
2017 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2018#else
b448e4fe 2019 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2020#endif
b448e4fe 2021 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2022 PUTBACK;
2023 ENTER;
864dbfa3 2024 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2025 LEAVE;
2026 SPAGAIN;
2027 RETURN;
2028 }
2029
533c011a 2030 if (PL_op->op_type == OP_SEEK)
8903cb82 2031 PUSHs(boolSV(do_seek(gv, offset, whence)));
2032 else {
b448e4fe
JH		 2033 Off_t sought = do_sysseek(gv, offset, whence);
2034 if (sought < 0)
146174a9
CB		 2035 PUSHs(&PL_sv_undef);
2036 else {
b448e4fe 2037 SV* sv = sought ?
146174a9 2038#if LSEEKSIZE > IVSIZE
b448e4fe 2039 newSVnv((NV)sought)
146174a9 2040#else
b448e4fe 2041 newSViv(sought)
146174a9
CB		 2042#endif
2043 : newSVpvn(zero_but_true, ZBTLEN);
2044 PUSHs(sv_2mortal(sv));
2045 }
8903cb82 2046 }
a0d0e21e
LW		 2047 RETURN;
2048}
2049
2050PP(pp_truncate)
2051{
39644a26 2052 dSP;
8c99d73e
GS		 2053 /* There seems to be no consensus on the length type of truncate()
2054 * and ftruncate(), both off_t and size_t have supporters. In
2055 * general one would think that when using large files, off_t is
2056 * at least as wide as size_t, so using an off_t should be okay. */
2057 /* XXX Configure probe for the length type of *truncate() needed XXX */
2058 Off_t len;
a0d0e21e 2059
25342a55 2060#if Off_t_size > IVSIZE
8c99d73e
GS		 2061 len = (Off_t)POPn;
2062#else
2063 len = (Off_t)POPi;
2064#endif
2065 /* Checking for length < 0 is problematic as the type might or
301e8125 2066 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2067 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2068 SETERRNO(0,0);
5d94fbed 2069#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2070 {
2071 STRLEN n_a;
2072 int result = 1;
2073 GV *tmpgv;
2074
2075 if (PL_op->op_flags & OPf_SPECIAL) {
2076 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2077
2078 do_ftruncate:
2079 TAINT_PROPER("truncate");
2080 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2081 result = 0;
2082 else {
2083 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 2084#ifdef HAS_TRUNCATE
d05c1ba0 2085 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 2086#else
d05c1ba0 2087 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 2088#endif
d05c1ba0
JH		 2089 result = 0;
2090 }
cbdc8872 2091 }
d05c1ba0
JH		 2092 else {
2093 SV *sv = POPs;
2094 char *name;
72f496dc 2095
d05c1ba0
JH		 2096 if (SvTYPE(sv) == SVt_PVGV) {
2097 tmpgv = (GV*)sv; /* *main::FRED for example */
2098 goto do_ftruncate;
2099 }
2100 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2101 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2102 goto do_ftruncate;
2103 }
1e422769 2104
d05c1ba0
JH		 2105 name = SvPV(sv, n_a);
2106 TAINT_PROPER("truncate");
cbdc8872 2107#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2108 if (truncate(name, len) < 0)
2109 result = 0;
cbdc8872 2110#else
d05c1ba0
JH		 2111 {
2112 int tmpfd;
2113
2114 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2115 result = 0;
d05c1ba0
JH		 2116 else {
2117 if (my_chsize(tmpfd, len) < 0)
2118 result = 0;
2119 PerlLIO_close(tmpfd);
2120 }
cbdc8872 2121 }
a0d0e21e 2122#endif
d05c1ba0 2123 }
a0d0e21e 2124
d05c1ba0
JH		 2125 if (result)
2126 RETPUSHYES;
2127 if (!errno)
93189314 2128 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2129 RETPUSHUNDEF;
2130 }
a0d0e21e 2131#else
cea2e8a9 2132 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2133#endif
2134}
2135
2136PP(pp_fcntl)
2137{
cea2e8a9 2138 return pp_ioctl();
a0d0e21e
LW		 2139}
2140
2141PP(pp_ioctl)
2142{
39644a26 2143 dSP; dTARGET;
748a9306 2144 SV *argsv = POPs;
3bb7c1b4 2145 unsigned int func = POPu;
533c011a 2146 int optype = PL_op->op_type;
a0d0e21e 2147 char *s;
324aa91a 2148 IV retval;
a0d0e21e 2149 GV *gv = (GV*)POPs;
c289d2f7 2150 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2151
748a9306 2152 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2153 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2154 report_evil_fh(gv, io, PL_op->op_type);
93189314 2155 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2156 RETPUSHUNDEF;
2157 }
2158
748a9306 2159 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2160 STRLEN len;
324aa91a 2161 STRLEN need;
748a9306 2162 s = SvPV_force(argsv, len);
324aa91a
HF		 2163 need = IOCPARM_LEN(func);
2164 if (len < need) {
2165 s = Sv_Grow(argsv, need + 1);
2166 SvCUR_set(argsv, need);
a0d0e21e
LW		 2167 }
2168
748a9306 2169 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2170 }
2171 else {
748a9306 2172 retval = SvIV(argsv);
c529f79d 2173 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2174 }
2175
2176 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2177
2178 if (optype == OP_IOCTL)
2179#ifdef HAS_IOCTL
76e3520e 2180 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2181#else
cea2e8a9 2182 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2183#endif
2184 else
c214f4ad
WB		 2185#ifndef HAS_FCNTL
2186 DIE(aTHX_ "fcntl is not implemented");
2187#else
55497cff 2188#if defined(OS2) && defined(__EMX__)
760ac839 2189 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2190#else
760ac839 2191 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2192#endif
a0d0e21e 2193
748a9306
LW		 2194 if (SvPOK(argsv)) {
2195 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2196 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2197 OP_NAME(PL_op));
748a9306
LW		 2198 s[SvCUR(argsv)] = 0; /* put our null back */
2199 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2200 }
2201
2202 if (retval == -1)
2203 RETPUSHUNDEF;
2204 if (retval != 0) {
2205 PUSHi(retval);
2206 }
2207 else {
8903cb82 2208 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2209 }
4808266b 2210#endif
c214f4ad 2211 RETURN;
a0d0e21e
LW		 2212}
2213
2214PP(pp_flock)
2215{
9cad6237 2216#ifdef FLOCK
39644a26 2217 dSP; dTARGET;
a0d0e21e
LW		 2218 I32 value;
2219 int argtype;
2220 GV *gv;
bc37a18f 2221 IO *io = NULL;
760ac839 2222 PerlIO *fp;
16d20bd9 2223
a0d0e21e 2224 argtype = POPi;
32da55ab 2225 if (MAXARG == 0)
3280af22 2226 gv = PL_last_in_gv;
a0d0e21e
LW		 2227 else
2228 gv = (GV*)POPs;
bc37a18f
RG		 2229 if (gv && (io = GvIO(gv)))
2230 fp = IoIFP(io);
2231 else {
a0d0e21e 2232 fp = Nullfp;
bc37a18f
RG		 2233 io = NULL;
2234 }
a0d0e21e 2235 if (fp) {
68dc0745 2236 (void)PerlIO_flush(fp);
76e3520e 2237 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2238 }
cb50131a 2239 else {
bc37a18f
RG		 2240 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2241 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2242 value = 0;
93189314 2243 SETERRNO(EBADF,RMS_IFI);
cb50131a 2244 }
a0d0e21e
LW		 2245 PUSHi(value);
2246 RETURN;
2247#else
cea2e8a9 2248 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2249#endif
2250}
2251
2252/* Sockets. */
2253
2254PP(pp_socket)
2255{
a0d0e21e 2256#ifdef HAS_SOCKET
9cad6237 2257 dSP;
a0d0e21e
LW		 2258 GV *gv;
2259 register IO *io;
2260 int protocol = POPi;
2261 int type = POPi;
2262 int domain = POPi;
2263 int fd;
2264
2265 gv = (GV*)POPs;
c289d2f7 2266 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2267
c289d2f7
JH		 2268 if (!gv || !io) {
2269 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2270 report_evil_fh(gv, io, PL_op->op_type);
2271 if (IoIFP(io))
2272 do_close(gv, FALSE);
93189314 2273 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2274 RETPUSHUNDEF;
2275 }
2276
57171420
BS		 2277 if (IoIFP(io))
2278 do_close(gv, FALSE);
2279
a0d0e21e 2280 TAINT_PROPER("socket");
6ad3d225 2281 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2282 if (fd < 0)
2283 RETPUSHUNDEF;
479b2847
GS		 2284 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2285 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2286 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2287 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2288 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2289 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2290 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2291 RETPUSHUNDEF;
2292 }
8d2a6795
GS		 2293#if defined(HAS_FCNTL) && defined(F_SETFD)
2294 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2295#endif
a0d0e21e 2296
d5ff79b3
OF		 2297#ifdef EPOC
2298 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2299#endif
2300
a0d0e21e
LW		 2301 RETPUSHYES;
2302#else
cea2e8a9 2303 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2304#endif
2305}
2306
2307PP(pp_sockpair)
2308{
c95c94b1 2309#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2310 dSP;
a0d0e21e
LW		 2311 GV *gv1;
2312 GV *gv2;
2313 register IO *io1;
2314 register IO *io2;
2315 int protocol = POPi;
2316 int type = POPi;
2317 int domain = POPi;
2318 int fd[2];
2319
2320 gv2 = (GV*)POPs;
2321 gv1 = (GV*)POPs;
c289d2f7
JH		 2322 io1 = gv1 ? GvIOn(gv1) : NULL;
2323 io2 = gv2 ? GvIOn(gv2) : NULL;
2324 if (!gv1 || !gv2 || !io1 || !io2) {
2325 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2326 if (!gv1 || !io1)
2327 report_evil_fh(gv1, io1, PL_op->op_type);
2328 if (!gv2 || !io2)
2329 report_evil_fh(gv1, io2, PL_op->op_type);
2330 }
2331 if (IoIFP(io1))
2332 do_close(gv1, FALSE);
2333 if (IoIFP(io2))
2334 do_close(gv2, FALSE);
a0d0e21e 2335 RETPUSHUNDEF;
c289d2f7 2336 }
a0d0e21e 2337
dc0d0a5f
JH		 2338 if (IoIFP(io1))
2339 do_close(gv1, FALSE);
2340 if (IoIFP(io2))
2341 do_close(gv2, FALSE);
57171420 2342
a0d0e21e 2343 TAINT_PROPER("socketpair");
6ad3d225 2344 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2345 RETPUSHUNDEF;
479b2847
GS		 2346 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2347 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
50952442 2348 IoTYPE(io1) = IoTYPE_SOCKET;
479b2847
GS		 2349 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2350 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
50952442 2351 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2352 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2353 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2354 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2355 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2356 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2357 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2358 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2359 RETPUSHUNDEF;
2360 }
8d2a6795
GS		 2361#if defined(HAS_FCNTL) && defined(F_SETFD)
2362 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2363 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2364#endif
a0d0e21e
LW		 2365
2366 RETPUSHYES;
2367#else
cea2e8a9 2368 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2369#endif
2370}
2371
2372PP(pp_bind)
2373{
a0d0e21e 2374#ifdef HAS_SOCKET
9cad6237 2375 dSP;
eec2d3df 2376#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2377 extern void GETPRIVMODE();
2378 extern void GETUSERMODE();
eec2d3df 2379#endif
748a9306 2380 SV *addrsv = POPs;
a0d0e21e
LW		 2381 char *addr;
2382 GV *gv = (GV*)POPs;
2383 register IO *io = GvIOn(gv);
2384 STRLEN len;
eec2d3df
GS		 2385 int bind_ok = 0;
2386#ifdef MPE
2387 int mpeprivmode = 0;
2388#endif
a0d0e21e
LW		 2389
2390 if (!io || !IoIFP(io))
2391 goto nuts;
2392
748a9306 2393 addr = SvPV(addrsv, len);
a0d0e21e 2394 TAINT_PROPER("bind");
eec2d3df
GS		 2395#ifdef MPE /* Deal with MPE bind() peculiarities */
2396 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2397 /* The address *MUST* stupidly be zero. */
2398 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2399 /* PRIV mode is required to bind() to ports < 1024. */
2400 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2401 ((struct sockaddr_in *)addr)->sin_port > 0) {
2402 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2403 mpeprivmode = 1;
2404 }
2405 }
2406#endif /* MPE */
2407 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2408 (struct sockaddr *)addr, len) >= 0)
2409 bind_ok = 1;
2410
2411#ifdef MPE /* Switch back to USER mode */
2412 if (mpeprivmode)
2413 GETUSERMODE();
2414#endif /* MPE */
2415
2416 if (bind_ok)
a0d0e21e
LW		 2417 RETPUSHYES;
2418 else
2419 RETPUSHUNDEF;
2420
2421nuts:
599cee73 2422 if (ckWARN(WARN_CLOSED))
bc37a18f 2423 report_evil_fh(gv, io, PL_op->op_type);
93189314 2424 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2425 RETPUSHUNDEF;
2426#else
cea2e8a9 2427 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2428#endif
2429}
2430
2431PP(pp_connect)
2432{
a0d0e21e 2433#ifdef HAS_SOCKET
9cad6237 2434 dSP;
748a9306 2435 SV *addrsv = POPs;
a0d0e21e
LW		 2436 char *addr;
2437 GV *gv = (GV*)POPs;
2438 register IO *io = GvIOn(gv);
2439 STRLEN len;
2440
2441 if (!io || !IoIFP(io))
2442 goto nuts;
2443
748a9306 2444 addr = SvPV(addrsv, len);
a0d0e21e 2445 TAINT_PROPER("connect");
6ad3d225 2446 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2447 RETPUSHYES;
2448 else
2449 RETPUSHUNDEF;
2450
2451nuts:
599cee73 2452 if (ckWARN(WARN_CLOSED))
bc37a18f 2453 report_evil_fh(gv, io, PL_op->op_type);
93189314 2454 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2455 RETPUSHUNDEF;
2456#else
cea2e8a9 2457 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2458#endif
2459}
2460
2461PP(pp_listen)
2462{
a0d0e21e 2463#ifdef HAS_SOCKET
9cad6237 2464 dSP;
a0d0e21e
LW		 2465 int backlog = POPi;
2466 GV *gv = (GV*)POPs;
c289d2f7 2467 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2468
c289d2f7 2469 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2470 goto nuts;
2471
6ad3d225 2472 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2473 RETPUSHYES;
2474 else
2475 RETPUSHUNDEF;
2476
2477nuts:
599cee73 2478 if (ckWARN(WARN_CLOSED))
bc37a18f 2479 report_evil_fh(gv, io, PL_op->op_type);
93189314 2480 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2481 RETPUSHUNDEF;
2482#else
cea2e8a9 2483 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2484#endif
2485}
2486
2487PP(pp_accept)
2488{
a0d0e21e 2489#ifdef HAS_SOCKET
9cad6237 2490 dSP; dTARGET;
a0d0e21e
LW		 2491 GV *ngv;
2492 GV *ggv;
2493 register IO *nstio;
2494 register IO *gstio;
4633a7c4 2495 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2496 Sock_size_t len = sizeof saddr;
a0d0e21e 2497 int fd;
72f496dc 2498 int fd2;
a0d0e21e
LW		 2499
2500 ggv = (GV*)POPs;
2501 ngv = (GV*)POPs;
2502
2503 if (!ngv)
2504 goto badexit;
2505 if (!ggv)
2506 goto nuts;
2507
2508 gstio = GvIO(ggv);
2509 if (!gstio || !IoIFP(gstio))
2510 goto nuts;
2511
2512 nstio = GvIOn(ngv);
6ad3d225 2513 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2514 if (fd < 0)
2515 goto badexit;
a70048fb
AB		 2516 if (IoIFP(nstio))
2517 do_close(ngv, FALSE);
479b2847 2518 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
72f496dc
NIS		 2519 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2520 fclose of IoOFP's FILE * - and hence leak memory.
2521 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2522 */
479b2847 2523 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w"PIPESOCK_MODE);
50952442 2524 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2525 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2526 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2527 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2528 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2529 goto badexit;
2530 }
8d2a6795
GS		 2531#if defined(HAS_FCNTL) && defined(F_SETFD)
2532 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
72f496dc 2533 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
8d2a6795 2534#endif
a0d0e21e 2535
ed79a026 2536#ifdef EPOC
a9f1f6b0
OF		 2537 len = sizeof saddr; /* EPOC somehow truncates info */
2538 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026
OF		 2539#endif
2540
748a9306 2541 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2542 RETURN;
2543
2544nuts:
599cee73 2545 if (ckWARN(WARN_CLOSED))
bc37a18f 2546 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2547 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2548
2549badexit:
2550 RETPUSHUNDEF;
2551
2552#else
cea2e8a9 2553 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2554#endif
2555}
2556
2557PP(pp_shutdown)
2558{
a0d0e21e 2559#ifdef HAS_SOCKET
9cad6237 2560 dSP; dTARGET;
a0d0e21e
LW		 2561 int how = POPi;
2562 GV *gv = (GV*)POPs;
2563 register IO *io = GvIOn(gv);
2564
2565 if (!io || !IoIFP(io))
2566 goto nuts;
2567
6ad3d225 2568 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2569 RETURN;
2570
2571nuts:
599cee73 2572 if (ckWARN(WARN_CLOSED))
bc37a18f 2573 report_evil_fh(gv, io, PL_op->op_type);
93189314 2574 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2575 RETPUSHUNDEF;
2576#else
cea2e8a9 2577 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2578#endif
2579}
2580
2581PP(pp_gsockopt)
2582{
2583#ifdef HAS_SOCKET
cea2e8a9 2584 return pp_ssockopt();
a0d0e21e 2585#else
cea2e8a9 2586 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2587#endif
2588}
2589
2590PP(pp_ssockopt)
2591{
a0d0e21e 2592#ifdef HAS_SOCKET
9cad6237 2593 dSP;
533c011a 2594 int optype = PL_op->op_type;
a0d0e21e
LW		 2595 SV *sv;
2596 int fd;
2597 unsigned int optname;
2598 unsigned int lvl;
2599 GV *gv;
2600 register IO *io;
1e422769 2601 Sock_size_t len;
a0d0e21e
LW		 2602
2603 if (optype == OP_GSOCKOPT)
2604 sv = sv_2mortal(NEWSV(22, 257));
2605 else
2606 sv = POPs;
2607 optname = (unsigned int) POPi;
2608 lvl = (unsigned int) POPi;
2609
2610 gv = (GV*)POPs;
2611 io = GvIOn(gv);
2612 if (!io || !IoIFP(io))
2613 goto nuts;
2614
760ac839 2615 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2616 switch (optype) {
2617 case OP_GSOCKOPT:
748a9306 2618 SvGROW(sv, 257);
a0d0e21e 2619 (void)SvPOK_only(sv);
748a9306
LW		 2620 SvCUR_set(sv,256);
2621 *SvEND(sv) ='\0';
1e422769 2622 len = SvCUR(sv);
6ad3d225 2623 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2624 goto nuts2;
1e422769 2625 SvCUR_set(sv, len);
748a9306 2626 *SvEND(sv) ='\0';
a0d0e21e
LW		 2627 PUSHs(sv);
2628 break;
2629 case OP_SSOCKOPT: {
1e422769 2630 char *buf;
2631 int aint;
2632 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2633 STRLEN l;
2634 buf = SvPV(sv, l);
2635 len = l;
1e422769 2636 }
56ee1660 2637 else {
a0d0e21e
LW		 2638 aint = (int)SvIV(sv);
2639 buf = (char*)&aint;
2640 len = sizeof(int);
2641 }
6ad3d225 2642 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2643 goto nuts2;
3280af22 2644 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2645 }
2646 break;
2647 }
2648 RETURN;
2649
2650nuts:
599cee73 2651 if (ckWARN(WARN_CLOSED))
bc37a18f 2652 report_evil_fh(gv, io, optype);
93189314 2653 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2654nuts2:
2655 RETPUSHUNDEF;
2656
2657#else
cea2e8a9 2658 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2659#endif
2660}
2661
2662PP(pp_getsockname)
2663{
2664#ifdef HAS_SOCKET
cea2e8a9 2665 return pp_getpeername();
a0d0e21e 2666#else
cea2e8a9 2667 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2668#endif
2669}
2670
2671PP(pp_getpeername)
2672{
a0d0e21e 2673#ifdef HAS_SOCKET
9cad6237 2674 dSP;
533c011a 2675 int optype = PL_op->op_type;
a0d0e21e
LW		 2676 SV *sv;
2677 int fd;
2678 GV *gv = (GV*)POPs;
2679 register IO *io = GvIOn(gv);
1e422769 2680 Sock_size_t len;
a0d0e21e
LW		 2681
2682 if (!io || !IoIFP(io))
2683 goto nuts;
2684
2685 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2686 (void)SvPOK_only(sv);
1e422769 2687 len = 256;
2688 SvCUR_set(sv, len);
748a9306 2689 *SvEND(sv) ='\0';
760ac839 2690 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2691 switch (optype) {
2692 case OP_GETSOCKNAME:
6ad3d225 2693 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2694 goto nuts2;
2695 break;
2696 case OP_GETPEERNAME:
6ad3d225 2697 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2698 goto nuts2;
490ab354
JH		 2699#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2700 {
2701 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2702 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2703 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2704 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2705 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2706 goto nuts2;
490ab354
JH		 2707 }
2708 }
2709#endif
a0d0e21e
LW		 2710 break;
2711 }
13826f2c
CS		 2712#ifdef BOGUS_GETNAME_RETURN
2713 /* Interactive Unix, getpeername() and getsockname()
2714 does not return valid namelen */
1e422769 2715 if (len == BOGUS_GETNAME_RETURN)
2716 len = sizeof(struct sockaddr);
13826f2c 2717#endif
1e422769 2718 SvCUR_set(sv, len);
748a9306 2719 *SvEND(sv) ='\0';
a0d0e21e
LW		 2720 PUSHs(sv);
2721 RETURN;
2722
2723nuts:
599cee73 2724 if (ckWARN(WARN_CLOSED))
bc37a18f 2725 report_evil_fh(gv, io, optype);
93189314 2726 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2727nuts2:
2728 RETPUSHUNDEF;
2729
2730#else
cea2e8a9 2731 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2732#endif
2733}
2734
2735/* Stat calls. */
2736
2737PP(pp_lstat)
2738{
cea2e8a9 2739 return pp_stat();
a0d0e21e
LW		 2740}
2741
2742PP(pp_stat)
2743{
39644a26 2744 dSP;
2dd78f96 2745 GV *gv;
54310121 2746 I32 gimme;
a0d0e21e 2747 I32 max = 13;
2d8e6c8d 2748 STRLEN n_a;
a0d0e21e 2749
533c011a 2750 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2751 gv = cGVOP_gv;
8a4e5b40 2752 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2753 if (gv != PL_defgv) {
2754 if (ckWARN(WARN_IO))
9014280d 2755 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2756 "lstat() on filehandle %s", GvENAME(gv));
2757 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2758 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2759 }
2760
748a9306 2761 do_fstat:
2dd78f96 2762 if (gv != PL_defgv) {
3280af22 2763 PL_laststype = OP_STAT;
2dd78f96 2764 PL_statgv = gv;
3280af22 2765 sv_setpv(PL_statname, "");
2dd78f96
JH		 2766 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2767 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2768 }
9ddeeac9 2769 if (PL_laststatval < 0) {
2dd78f96
JH		 2770 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2771 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2772 max = 0;
9ddeeac9 2773 }
a0d0e21e
LW		 2774 }
2775 else {
748a9306
LW		 2776 SV* sv = POPs;
2777 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2778 gv = (GV*)sv;
748a9306
LW		 2779 goto do_fstat;
2780 }
2781 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2782 gv = (GV*)SvRV(sv);
5d3e98de 2783 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2784 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2785 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2786 goto do_fstat;
2787 }
2d8e6c8d 2788 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2789 PL_statgv = Nullgv;
a0d0e21e 2790#ifdef HAS_LSTAT
533c011a
NIS		 2791 PL_laststype = PL_op->op_type;
2792 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2793 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2794 else
2795#endif
2d8e6c8d 2796 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2797 if (PL_laststatval < 0) {
2d8e6c8d 2798 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2799 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2800 max = 0;
2801 }
2802 }
2803
54310121 2804 gimme = GIMME_V;
2805 if (gimme != G_ARRAY) {
2806 if (gimme != G_VOID)
2807 XPUSHs(boolSV(max));
2808 RETURN;
a0d0e21e
LW		 2809 }
2810 if (max) {
36477c24 2811 EXTEND(SP, max);
2812 EXTEND_MORTAL(max);
1ff81528
PL		 2813 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2815 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2817#if Uid_t_size > IVSIZE
2818 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2819#else
23dcd6c8 2820# if Uid_t_sign <= 0
1ff81528 2821 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2822# else
2823 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2824# endif
146174a9 2825#endif
301e8125 2826#if Gid_t_size > IVSIZE
146174a9
CB		 2827 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2828#else
23dcd6c8 2829# if Gid_t_sign <= 0
1ff81528 2830 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2831# else
2832 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2833# endif
146174a9 2834#endif
cbdc8872 2835#ifdef USE_STAT_RDEV
1ff81528 2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2837#else
79cb57f6 2838 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2839#endif
146174a9 2840#if Off_t_size > IVSIZE
4a9d6100 2841 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2842#else
1ff81528 2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2844#endif
cbdc8872 2845#ifdef BIG_TIME
172ae379
JH		 2846 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2847 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2848 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2849#else
1ff81528
PL		 2850 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2851 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2852 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2853#endif
a0d0e21e 2854#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2855 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2856 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2857#else
79cb57f6
GS		 2858 PUSHs(sv_2mortal(newSVpvn("", 0)));
2859 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2860#endif
2861 }
2862 RETURN;
2863}
2864
2865PP(pp_ftrread)
2866{
9cad6237 2867 I32 result;
2a3ff820 2868 dSP;
5ff3f7a4 2869#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2870 STRLEN n_a;
5ff3f7a4 2871 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2872 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2873 if (result == 0)
2874 RETPUSHYES;
2875 if (result < 0)
2876 RETPUSHUNDEF;
2877 RETPUSHNO;
22865c03
GS		 2878 }
2879 else
cea2e8a9 2880 result = my_stat();
5ff3f7a4 2881#else
cea2e8a9 2882 result = my_stat();
5ff3f7a4 2883#endif
22865c03 2884 SPAGAIN;
a0d0e21e
LW		 2885 if (result < 0)
2886 RETPUSHUNDEF;
3280af22 2887 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2888 RETPUSHYES;
2889 RETPUSHNO;
2890}
2891
2892PP(pp_ftrwrite)
2893{
9cad6237 2894 I32 result;
2a3ff820 2895 dSP;
5ff3f7a4 2896#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2897 STRLEN n_a;
5ff3f7a4 2898 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2899 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2900 if (result == 0)
2901 RETPUSHYES;
2902 if (result < 0)
2903 RETPUSHUNDEF;
2904 RETPUSHNO;
22865c03
GS		 2905 }
2906 else
cea2e8a9 2907 result = my_stat();
5ff3f7a4 2908#else
cea2e8a9 2909 result = my_stat();
5ff3f7a4 2910#endif
22865c03 2911 SPAGAIN;
a0d0e21e
LW		 2912 if (result < 0)
2913 RETPUSHUNDEF;
3280af22 2914 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2915 RETPUSHYES;
2916 RETPUSHNO;
2917}
2918
2919PP(pp_ftrexec)
2920{
9cad6237 2921 I32 result;
2a3ff820 2922 dSP;
5ff3f7a4 2923#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2924 STRLEN n_a;
5ff3f7a4 2925 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2926 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2927 if (result == 0)
2928 RETPUSHYES;
2929 if (result < 0)
2930 RETPUSHUNDEF;
2931 RETPUSHNO;
22865c03
GS		 2932 }
2933 else
cea2e8a9 2934 result = my_stat();
5ff3f7a4 2935#else
cea2e8a9 2936 result = my_stat();
5ff3f7a4 2937#endif
22865c03 2938 SPAGAIN;
a0d0e21e
LW		 2939 if (result < 0)
2940 RETPUSHUNDEF;
3280af22 2941 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2942 RETPUSHYES;
2943 RETPUSHNO;
2944}
2945
2946PP(pp_fteread)
2947{
9cad6237 2948 I32 result;
2a3ff820 2949 dSP;
5ff3f7a4 2950#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2951 STRLEN n_a;
5ff3f7a4 2952 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2953 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2954 if (result == 0)
2955 RETPUSHYES;
2956 if (result < 0)
2957 RETPUSHUNDEF;
2958 RETPUSHNO;
22865c03
GS		 2959 }
2960 else
cea2e8a9 2961 result = my_stat();
5ff3f7a4 2962#else
cea2e8a9 2963 result = my_stat();
5ff3f7a4 2964#endif
22865c03 2965 SPAGAIN;
a0d0e21e
LW		 2966 if (result < 0)
2967 RETPUSHUNDEF;
3280af22 2968 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2969 RETPUSHYES;
2970 RETPUSHNO;
2971}
2972
2973PP(pp_ftewrite)
2974{
9cad6237 2975 I32 result;
2a3ff820 2976 dSP;
5ff3f7a4 2977#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2978 STRLEN n_a;
5ff3f7a4 2979 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2980 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2981 if (result == 0)
2982 RETPUSHYES;
2983 if (result < 0)
2984 RETPUSHUNDEF;
2985 RETPUSHNO;
22865c03
GS		 2986 }
2987 else
cea2e8a9 2988 result = my_stat();
5ff3f7a4 2989#else
cea2e8a9 2990 result = my_stat();
5ff3f7a4 2991#endif
22865c03 2992 SPAGAIN;
a0d0e21e
LW		 2993 if (result < 0)
2994 RETPUSHUNDEF;
3280af22 2995 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2996 RETPUSHYES;
2997 RETPUSHNO;
2998}
2999
3000PP(pp_fteexec)
3001{
9cad6237 3002 I32 result;
2a3ff820 3003 dSP;
5ff3f7a4 3004#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 3005 STRLEN n_a;
5ff3f7a4 3006 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 3007 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 3008 if (result == 0)
3009 RETPUSHYES;
3010 if (result < 0)
3011 RETPUSHUNDEF;
3012 RETPUSHNO;
22865c03
GS		 3013 }
3014 else
cea2e8a9 3015 result = my_stat();
5ff3f7a4 3016#else
cea2e8a9 3017 result = my_stat();
5ff3f7a4 3018#endif
22865c03 3019 SPAGAIN;
a0d0e21e
LW		 3020 if (result < 0)
3021 RETPUSHUNDEF;
3280af22 3022 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3023 RETPUSHYES;
3024 RETPUSHNO;
3025}
3026
3027PP(pp_ftis)
3028{
9cad6237 3029 I32 result = my_stat();
2a3ff820 3030 dSP;
a0d0e21e
LW		 3031 if (result < 0)
3032 RETPUSHUNDEF;
3033 RETPUSHYES;
3034}
3035
3036PP(pp_fteowned)
3037{
cea2e8a9 3038 return pp_ftrowned();
a0d0e21e
LW		 3039}
3040
3041PP(pp_ftrowned)
3042{
9cad6237 3043 I32 result = my_stat();
2a3ff820 3044 dSP;
a0d0e21e
LW		 3045 if (result < 0)
3046 RETPUSHUNDEF;
146174a9
CB		 3047 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3048 PL_euid : PL_uid) )
a0d0e21e
LW		 3049 RETPUSHYES;
3050 RETPUSHNO;
3051}
3052
3053PP(pp_ftzero)
3054{
9cad6237 3055 I32 result = my_stat();
2a3ff820 3056 dSP;
a0d0e21e
LW		 3057 if (result < 0)
3058 RETPUSHUNDEF;
146174a9 3059 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3060 RETPUSHYES;
3061 RETPUSHNO;
3062}
3063
3064PP(pp_ftsize)
3065{
9cad6237 3066 I32 result = my_stat();
2a3ff820 3067 dSP; dTARGET;
a0d0e21e
LW		 3068 if (result < 0)
3069 RETPUSHUNDEF;
146174a9
CB		 3070#if Off_t_size > IVSIZE
3071 PUSHn(PL_statcache.st_size);
3072#else
3280af22 3073 PUSHi(PL_statcache.st_size);
146174a9 3074#endif
a0d0e21e
LW		 3075 RETURN;
3076}
3077
3078PP(pp_ftmtime)
3079{
9cad6237 3080 I32 result = my_stat();
2a3ff820 3081 dSP; dTARGET;
a0d0e21e
LW		 3082 if (result < 0)
3083 RETPUSHUNDEF;
c6419e06 3084 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 3085 RETURN;
3086}
3087
3088PP(pp_ftatime)
3089{
9cad6237 3090 I32 result = my_stat();
2a3ff820 3091 dSP; dTARGET;
a0d0e21e
LW		 3092 if (result < 0)
3093 RETPUSHUNDEF;
c6419e06 3094 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3095 RETURN;
3096}
3097
3098PP(pp_ftctime)
3099{
9cad6237 3100 I32 result = my_stat();
2a3ff820 3101 dSP; dTARGET;
a0d0e21e
LW		 3102 if (result < 0)
3103 RETPUSHUNDEF;
c6419e06 3104 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3105 RETURN;
3106}
3107
3108PP(pp_ftsock)
3109{
9cad6237 3110 I32 result = my_stat();
2a3ff820 3111 dSP;
a0d0e21e
LW		 3112 if (result < 0)
3113 RETPUSHUNDEF;
3280af22 3114 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3115 RETPUSHYES;
3116 RETPUSHNO;
3117}
3118
3119PP(pp_ftchr)
3120{
9cad6237 3121 I32 result = my_stat();
2a3ff820 3122 dSP;
a0d0e21e
LW		 3123 if (result < 0)
3124 RETPUSHUNDEF;
3280af22 3125 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3126 RETPUSHYES;
3127 RETPUSHNO;
3128}
3129
3130PP(pp_ftblk)
3131{
9cad6237 3132 I32 result = my_stat();
2a3ff820 3133 dSP;
a0d0e21e
LW		 3134 if (result < 0)
3135 RETPUSHUNDEF;
3280af22 3136 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3137 RETPUSHYES;
3138 RETPUSHNO;
3139}
3140
3141PP(pp_ftfile)
3142{
9cad6237 3143 I32 result = my_stat();
2a3ff820 3144 dSP;
a0d0e21e
LW		 3145 if (result < 0)
3146 RETPUSHUNDEF;
3280af22 3147 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3148 RETPUSHYES;
3149 RETPUSHNO;
3150}
3151
3152PP(pp_ftdir)
3153{
9cad6237 3154 I32 result = my_stat();
2a3ff820 3155 dSP;
a0d0e21e
LW		 3156 if (result < 0)
3157 RETPUSHUNDEF;
3280af22 3158 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3159 RETPUSHYES;
3160 RETPUSHNO;
3161}
3162
3163PP(pp_ftpipe)
3164{
9cad6237 3165 I32 result = my_stat();
2a3ff820 3166 dSP;
a0d0e21e
LW		 3167 if (result < 0)
3168 RETPUSHUNDEF;
3280af22 3169 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3170 RETPUSHYES;
3171 RETPUSHNO;
3172}
3173
3174PP(pp_ftlink)
3175{
9cad6237 3176 I32 result = my_lstat();
2a3ff820 3177 dSP;
a0d0e21e
LW		 3178 if (result < 0)
3179 RETPUSHUNDEF;
3280af22 3180 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3181 RETPUSHYES;
3182 RETPUSHNO;
3183}
3184
3185PP(pp_ftsuid)
3186{
39644a26 3187 dSP;
a0d0e21e 3188#ifdef S_ISUID
cea2e8a9 3189 I32 result = my_stat();
a0d0e21e
LW		 3190 SPAGAIN;
3191 if (result < 0)
3192 RETPUSHUNDEF;
3280af22 3193 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3194 RETPUSHYES;
3195#endif
3196 RETPUSHNO;
3197}
3198
3199PP(pp_ftsgid)
3200{
39644a26 3201 dSP;
a0d0e21e 3202#ifdef S_ISGID
cea2e8a9 3203 I32 result = my_stat();
a0d0e21e
LW		 3204 SPAGAIN;
3205 if (result < 0)
3206 RETPUSHUNDEF;
3280af22 3207 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3208 RETPUSHYES;
3209#endif
3210 RETPUSHNO;
3211}
3212
3213PP(pp_ftsvtx)
3214{
39644a26 3215 dSP;
a0d0e21e 3216#ifdef S_ISVTX
cea2e8a9 3217 I32 result = my_stat();
a0d0e21e
LW		 3218 SPAGAIN;
3219 if (result < 0)
3220 RETPUSHUNDEF;
3280af22 3221 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3222 RETPUSHYES;
3223#endif
3224 RETPUSHNO;
3225}
3226
3227PP(pp_fttty)
3228{
39644a26 3229 dSP;
a0d0e21e
LW		 3230 int fd;
3231 GV *gv;
fb73857a 3232 char *tmps = Nullch;
2d8e6c8d 3233 STRLEN n_a;
fb73857a 3234
533c011a 3235 if (PL_op->op_flags & OPf_REF)
146174a9 3236 gv = cGVOP_gv;
fb73857a 3237 else if (isGV(TOPs))
3238 gv = (GV*)POPs;
3239 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3240 gv = (GV*)SvRV(POPs);
a0d0e21e 3241 else
2d8e6c8d 3242 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3243
a0d0e21e 3244 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3245 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3246 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3247 fd = atoi(tmps);
3248 else
3249 RETPUSHUNDEF;
6ad3d225 3250 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3251 RETPUSHYES;
3252 RETPUSHNO;
3253}
3254
16d20bd9
AD		 3255#if defined(atarist) /* this will work with atariST. Configure will
3256 make guesses for other systems. */
3257# define FILE_base(f) ((f)->_base)
3258# define FILE_ptr(f) ((f)->_ptr)
3259# define FILE_cnt(f) ((f)->_cnt)
3260# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3261#endif
3262
3263PP(pp_fttext)
3264{
39644a26 3265 dSP;
a0d0e21e
LW		 3266 I32 i;
3267 I32 len;
3268 I32 odd = 0;
3269 STDCHAR tbuf[512];
3270 register STDCHAR *s;
3271 register IO *io;
5f05dabc 3272 register SV *sv;
3273 GV *gv;
2d8e6c8d 3274 STRLEN n_a;
146174a9 3275 PerlIO *fp;
a0d0e21e 3276
533c011a 3277 if (PL_op->op_flags & OPf_REF)
146174a9 3278 gv = cGVOP_gv;
5f05dabc 3279 else if (isGV(TOPs))
3280 gv = (GV*)POPs;
3281 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3282 gv = (GV*)SvRV(POPs);
3283 else
3284 gv = Nullgv;
3285
3286 if (gv) {
a0d0e21e 3287 EXTEND(SP, 1);
3280af22
NIS		 3288 if (gv == PL_defgv) {
3289 if (PL_statgv)
3290 io = GvIO(PL_statgv);
a0d0e21e 3291 else {
3280af22 3292 sv = PL_statname;
a0d0e21e
LW		 3293 goto really_filename;
3294 }
3295 }
3296 else {
3280af22
NIS		 3297 PL_statgv = gv;
3298 PL_laststatval = -1;
3299 sv_setpv(PL_statname, "");
3300 io = GvIO(PL_statgv);
a0d0e21e
LW		 3301 }
3302 if (io && IoIFP(io)) {
5f05dabc 3303 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3304 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3305 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3306 if (PL_laststatval < 0)
5f05dabc 3307 RETPUSHUNDEF;
9cbac4c7 3308 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3309 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3310 RETPUSHNO;
3311 else
3312 RETPUSHYES;
9cbac4c7 3313 }
a20bf0c3 3314 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3315 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3316 if (i != EOF)
760ac839 3317 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3318 }
a20bf0c3 3319 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3320 RETPUSHYES;
a20bf0c3
JH		 3321 len = PerlIO_get_bufsiz(IoIFP(io));
3322 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3323 /* sfio can have large buffers - limit to 512 */
3324 if (len > 512)
3325 len = 512;
a0d0e21e
LW		 3326 }
3327 else {
2dd78f96 3328 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3329 gv = cGVOP_gv;
2dd78f96 3330 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3331 }
93189314 3332 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3333 RETPUSHUNDEF;
3334 }
3335 }
3336 else {
3337 sv = POPs;
5f05dabc 3338 really_filename:
3280af22
NIS		 3339 PL_statgv = Nullgv;
3340 PL_laststatval = -1;
5c9aa243 3341 PL_laststype = OP_STAT;
2d8e6c8d 3342 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3343 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3344 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
9014280d 3345 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3346 RETPUSHUNDEF;
3347 }
146174a9
CB		 3348 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3349 if (PL_laststatval < 0) {
3350 (void)PerlIO_close(fp);
5f05dabc 3351 RETPUSHUNDEF;
146174a9 3352 }
60382766 3353 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3354 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3355 (void)PerlIO_close(fp);
a0d0e21e 3356 if (len <= 0) {
533c011a 3357 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3358 RETPUSHNO; /* special case NFS directories */
3359 RETPUSHYES; /* null file is anything */
3360 }
3361 s = tbuf;
3362 }
3363
3364 /* now scan s to look for textiness */
4633a7c4 3365 /* XXX ASCII dependent code */
a0d0e21e 3366
146174a9
CB		 3367#if defined(DOSISH) || defined(USEMYBINMODE)
3368 /* ignore trailing ^Z on short files */
3369 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3370 --len;
3371#endif
3372
a0d0e21e
LW		 3373 for (i = 0; i < len; i++, s++) {
3374 if (!*s) { /* null never allowed in text */
3375 odd += len;
3376 break;
3377 }
9d116dd7 3378#ifdef EBCDIC
301e8125 3379 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3380 odd++;
3381#else
146174a9
CB		 3382 else if (*s & 128) {
3383#ifdef USE_LOCALE
2de3dbcc 3384 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3385 continue;
3386#endif
3387 /* utf8 characters don't count as odd */
fd400ab9 3388 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3389 int ulen = UTF8SKIP(s);
3390 if (ulen < len - i) {
3391 int j;
3392 for (j = 1; j < ulen; j++) {
fd400ab9 3393 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3394 goto not_utf8;
3395 }
3396 --ulen; /* loop does extra increment */
3397 s += ulen;
3398 i += ulen;
3399 continue;
3400 }
3401 }
3402 not_utf8:
3403 odd++;
146174a9 3404 }
a0d0e21e
LW		 3405 else if (*s < 32 &&
3406 *s != '\n' && *s != '\r' && *s != '\b' &&
3407 *s != '\t' && *s != '\f' && *s != 27)
3408 odd++;
9d116dd7 3409#endif
a0d0e21e
LW		 3410 }
3411
533c011a 3412 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3413 RETPUSHNO;
3414 else
3415 RETPUSHYES;
3416}
3417
3418PP(pp_ftbinary)
3419{
cea2e8a9 3420 return pp_fttext();
a0d0e21e
LW		 3421}
3422
3423/* File calls. */
3424
3425PP(pp_chdir)
3426{
39644a26 3427 dSP; dTARGET;
a0d0e21e
LW		 3428 char *tmps;
3429 SV **svp;
2d8e6c8d 3430 STRLEN n_a;
a0d0e21e 3431
35ae6b54
MS		 3432 if( MAXARG == 1 )
3433 tmps = POPpx;
3434 else
3435 tmps = 0;
3436
3437 if( !tmps || !*tmps ) {
3438 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3439 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3440#ifdef VMS
35ae6b54 3441 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3442#endif
35ae6b54
MS		 3443 )
3444 {
3445 if( MAXARG == 1 )
9014280d 3446 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3447 tmps = SvPV(*svp, n_a);
3448 }
72f496dc 3449 else {
389ec635 3450 PUSHi(0);
b7ab37f8 3451 TAINT_PROPER("chdir");
389ec635
MS		 3452 RETURN;
3453 }
8ea155d1 3454 }
8ea155d1 3455
a0d0e21e 3456 TAINT_PROPER("chdir");
6ad3d225 3457 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3458#ifdef VMS
3459 /* Clear the DEFAULT element of ENV so we'll get the new value
3460 * in the future. */
6b88bc9c 3461 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3462#endif
a0d0e21e
LW		 3463 RETURN;
3464}
3465
3466PP(pp_chown)
3467{
a0d0e21e 3468#ifdef HAS_CHOWN
76ffd3b9
IZ		 3469 dSP; dMARK; dTARGET;
3470 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3471
a0d0e21e
LW		 3472 SP = MARK;
3473 PUSHi(value);
3474 RETURN;
3475#else
0322a713 3476 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3477#endif
3478}
3479
3480PP(pp_chroot)
3481{
a0d0e21e 3482#ifdef HAS_CHROOT
76ffd3b9 3483 dSP; dTARGET;
2d8e6c8d 3484 STRLEN n_a;
d05c1ba0 3485 char *tmps = POPpx;
a0d0e21e
LW		 3486 TAINT_PROPER("chroot");
3487 PUSHi( chroot(tmps) >= 0 );
3488 RETURN;
3489#else
cea2e8a9 3490 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3491#endif
3492}
3493
3494PP(pp_unlink)
3495{
39644a26 3496 dSP; dMARK; dTARGET;
a0d0e21e 3497 I32 value;
533c011a 3498 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3499 SP = MARK;
3500 PUSHi(value);
3501 RETURN;
3502}
3503
3504PP(pp_chmod)
3505{
39644a26 3506 dSP; dMARK; dTARGET;
a0d0e21e 3507 I32 value;
533c011a 3508 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3509 SP = MARK;
3510 PUSHi(value);
3511 RETURN;
3512}
3513
3514PP(pp_utime)
3515{
39644a26 3516 dSP; dMARK; dTARGET;
a0d0e21e 3517 I32 value;
533c011a 3518 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3519 SP = MARK;
3520 PUSHi(value);
3521 RETURN;
3522}
3523
3524PP(pp_rename)
3525{
39644a26 3526 dSP; dTARGET;
a0d0e21e 3527 int anum;
2d8e6c8d 3528 STRLEN n_a;
a0d0e21e 3529
2d8e6c8d
GS		 3530 char *tmps2 = POPpx;
3531 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3532 TAINT_PROPER("rename");
3533#ifdef HAS_RENAME
baed7233 3534 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3535#else
6b88bc9c 3536 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3537 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3538 anum = 1;
3539 else {
3654eb6c 3540 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3541 (void)UNLINK(tmps2);
3542 if (!(anum = link(tmps, tmps2)))
3543 anum = UNLINK(tmps);
3544 }
a0d0e21e
LW		 3545 }
3546#endif
3547 SETi( anum >= 0 );
3548 RETURN;
3549}
3550
3551PP(pp_link)
3552{
a0d0e21e 3553#ifdef HAS_LINK
370f6000 3554 dSP; dTARGET;
2d8e6c8d
GS		 3555 STRLEN n_a;
3556 char *tmps2 = POPpx;
3557 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3558 TAINT_PROPER("link");
146174a9 3559 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3560 RETURN;
a0d0e21e 3561#else
0322a713 3562 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3563#endif
a0d0e21e
LW		 3564}
3565
3566PP(pp_symlink)
3567{
a0d0e21e 3568#ifdef HAS_SYMLINK
9cad6237 3569 dSP; dTARGET;
2d8e6c8d
GS		 3570 STRLEN n_a;
3571 char *tmps2 = POPpx;
3572 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3573 TAINT_PROPER("symlink");
3574 SETi( symlink(tmps, tmps2) >= 0 );
3575 RETURN;
3576#else
cea2e8a9 3577 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3578#endif
3579}
3580
3581PP(pp_readlink)
3582{
76ffd3b9 3583 dSP;
a0d0e21e 3584#ifdef HAS_SYMLINK
76ffd3b9 3585 dTARGET;
a0d0e21e 3586 char *tmps;
46fc3d4c 3587 char buf[MAXPATHLEN];
a0d0e21e 3588 int len;
2d8e6c8d 3589 STRLEN n_a;
46fc3d4c 3590
fb73857a 3591#ifndef INCOMPLETE_TAINTS
3592 TAINT;
3593#endif
2d8e6c8d 3594 tmps = POPpx;
97dcea33 3595 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3596 EXTEND(SP, 1);
3597 if (len < 0)
3598 RETPUSHUNDEF;
3599 PUSHp(buf, len);
3600 RETURN;
3601#else
3602 EXTEND(SP, 1);
3603 RETSETUNDEF; /* just pretend it's a normal file */
3604#endif
3605}
3606
3607#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3608STATIC int
cea2e8a9 3609S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3610{
1e422769 3611 char *save_filename = filename;
3612 char *cmdline;
3613 char *s;
760ac839 3614 PerlIO *myfp;
1e422769 3615 int anum = 1;
a0d0e21e 3616
1e422769 3617 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3618 strcpy(cmdline, cmd);
3619 strcat(cmdline, " ");
3620 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3621 *s++ = '\\';
3622 *s++ = *filename++;
3623 }
3624 strcpy(s, " 2>&1");
6ad3d225 3625 myfp = PerlProc_popen(cmdline, "r");
1e422769 3626 Safefree(cmdline);
3627
a0d0e21e 3628 if (myfp) {
1e422769 3629 SV *tmpsv = sv_newmortal();
6b88bc9c 3630 /* Need to save/restore 'PL_rs' ?? */
760ac839 3631 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3632 (void)PerlProc_pclose(myfp);
a0d0e21e 3633 if (s != Nullch) {
1e422769 3634 int e;
3635 for (e = 1;
a0d0e21e 3636#ifdef HAS_SYS_ERRLIST
1e422769 3637 e <= sys_nerr
3638#endif
3639 ; e++)
3640 {
3641 /* you don't see this */
3642 char *errmsg =
3643#ifdef HAS_SYS_ERRLIST
3644 sys_errlist[e]
a0d0e21e 3645#else
1e422769 3646 strerror(e)
a0d0e21e 3647#endif
1e422769 3648 ;
3649 if (!errmsg)
3650 break;
3651 if (instr(s, errmsg)) {
3652 SETERRNO(e,0);
3653 return 0;
3654 }
a0d0e21e 3655 }
748a9306 3656 SETERRNO(0,0);
a0d0e21e
LW		 3657#ifndef EACCES
3658#define EACCES EPERM
3659#endif
1e422769 3660 if (instr(s, "cannot make"))
93189314 3661 SETERRNO(EEXIST,RMS_FEX);
1e422769 3662 else if (instr(s, "existing file"))
93189314 3663 SETERRNO(EEXIST,RMS_FEX);
1e422769 3664 else if (instr(s, "ile exists"))
93189314 3665 SETERRNO(EEXIST,RMS_FEX);
1e422769 3666 else if (instr(s, "non-exist"))
93189314 3667 SETERRNO(ENOENT,RMS_FNF);
1e422769 3668 else if (instr(s, "does not exist"))
93189314 3669 SETERRNO(ENOENT,RMS_FNF);
1e422769 3670 else if (instr(s, "not empty"))
93189314 3671 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3672 else if (instr(s, "cannot access"))
93189314 3673 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3674 else
93189314 3675 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3676 return 0;
3677 }
3678 else { /* some mkdirs return no failure indication */
6b88bc9c 3679 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3680 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3681 anum = !anum;
3682 if (anum)
748a9306 3683 SETERRNO(0,0);
a0d0e21e 3684 else
93189314 3685 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3686 }
3687 return anum;
3688 }
3689 else
3690 return 0;
3691}
3692#endif
3693
3694PP(pp_mkdir)
3695{
39644a26 3696 dSP; dTARGET;
5a211162 3697 int mode;
a0d0e21e
LW		 3698#ifndef HAS_MKDIR
3699 int oldumask;
3700#endif
df25ddba 3701 STRLEN len;
5a211162 3702 char *tmps;
df25ddba 3703 bool copy = FALSE;
5a211162
GS		 3704
3705 if (MAXARG > 1)
3706 mode = POPi;
3707 else
3708 mode = 0777;
3709
df25ddba
JH		 3710 tmps = SvPV(TOPs, len);
3711 /* Different operating and file systems take differently to
16ac3975
JH		 3712 * trailing slashes. According to POSIX 1003.1 1996 Edition
3713 * any number of trailing slashes should be allowed.
3714 * Thusly we snip them away so that even non-conforming
3715 * systems are happy. */
3716 /* We should probably do this "filtering" for all
3717 * the functions that expect (potentially) directory names:
3718 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3719 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3720 if (len > 1 && tmps[len-1] == '/') {
61439650 3721 while (tmps[len-1] == '/' && len > 1)
16ac3975
JH		 3722 len--;
3723 tmps = savepvn(tmps, len);
df25ddba
JH		 3724 copy = TRUE;
3725 }
a0d0e21e
LW		 3726
3727 TAINT_PROPER("mkdir");
3728#ifdef HAS_MKDIR
6ad3d225 3729 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3730#else
3731 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3732 oldumask = PerlLIO_umask(0);
3733 PerlLIO_umask(oldumask);
3734 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3735#endif
df25ddba
JH		 3736 if (copy)
3737 Safefree(tmps);
a0d0e21e
LW		 3738 RETURN;
3739}
3740
3741PP(pp_rmdir)
3742{
39644a26 3743 dSP; dTARGET;
a0d0e21e 3744 char *tmps;
2d8e6c8d 3745 STRLEN n_a;
a0d0e21e 3746
2d8e6c8d 3747 tmps = POPpx;
a0d0e21e
LW		 3748 TAINT_PROPER("rmdir");
3749#ifdef HAS_RMDIR
6ad3d225 3750 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e
LW		 3751#else
3752 XPUSHi( dooneliner("rmdir", tmps) );
3753#endif
3754 RETURN;
3755}
3756
3757/* Directory calls. */
3758
3759PP(pp_open_dir)
3760{
a0d0e21e 3761#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3762 dSP;
2d8e6c8d
GS		 3763 STRLEN n_a;
3764 char *dirname = POPpx;
1e2c6ed7
JH		 3765 GV *gv = (GV*)POPs;
3766 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3767
3768 if (!io)
3769 goto nope;
3770
3771 if (IoDIRP(io))
6ad3d225
GS		 3772 PerlDir_close(IoDIRP(io));
3773 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3774 goto nope;
3775
3776 RETPUSHYES;
3777nope:
3778 if (!errno)
93189314 3779 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3780 RETPUSHUNDEF;
3781#else
cea2e8a9 3782 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3783#endif
3784}
3785
3786PP(pp_readdir)
3787{
a0d0e21e 3788#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3789 dSP;
fd8cd3a3 3790#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3791 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3792#endif
3793 register Direntry_t *dp;
3794 GV *gv = (GV*)POPs;
3795 register IO *io = GvIOn(gv);
fb73857a 3796 SV *sv;
a0d0e21e
LW		 3797
3798 if (!io || !IoDIRP(io))
3799 goto nope;
3800
3801 if (GIMME == G_ARRAY) {
3802 /*SUPPRESS 560*/
155aba94 3803 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3804#ifdef DIRNAMLEN
79cb57f6 3805 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3806#else
fb73857a 3807 sv = newSVpv(dp->d_name, 0);
3808#endif
3809#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3810 if (!(IoFLAGS(io) & IOf_UNTAINT))
3811 SvTAINTED_on(sv);
a0d0e21e 3812#endif
fb73857a 3813 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3814 }
3815 }
3816 else {
6ad3d225 3817 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3818 goto nope;
3819#ifdef DIRNAMLEN
79cb57f6 3820 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3821#else
fb73857a 3822 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3823#endif
fb73857a 3824#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3825 if (!(IoFLAGS(io) & IOf_UNTAINT))
3826 SvTAINTED_on(sv);
fb73857a 3827#endif
3828 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3829 }
3830 RETURN;
3831
3832nope:
3833 if (!errno)
93189314 3834 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3835 if (GIMME == G_ARRAY)
3836 RETURN;
3837 else
3838 RETPUSHUNDEF;
3839#else
cea2e8a9 3840 DIE(aTHX_ PL_no_dir_func, "readdir");
a0d0e21e
LW		 3841#endif
3842}
3843
3844PP(pp_telldir)
3845{
a0d0e21e 3846#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3847 dSP; dTARGET;
968dcd91
JH		 3848 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3849 /* XXX netbsd still seemed to.
3850 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3851 --JHI 1999-Feb-02 */
3852# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3853 long telldir (DIR *);
dfe9444c 3854# endif
a0d0e21e
LW		 3855 GV *gv = (GV*)POPs;
3856 register IO *io = GvIOn(gv);
3857
3858 if (!io || !IoDIRP(io))
3859 goto nope;
3860
6ad3d225 3861 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3862 RETURN;
3863nope:
3864 if (!errno)
93189314 3865 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3866 RETPUSHUNDEF;
3867#else
cea2e8a9 3868 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3869#endif
3870}
3871
3872PP(pp_seekdir)
3873{
a0d0e21e 3874#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3875 dSP;
a0d0e21e
LW		 3876 long along = POPl;
3877 GV *gv = (GV*)POPs;
3878 register IO *io = GvIOn(gv);
3879
3880 if (!io || !IoDIRP(io))
3881 goto nope;
3882
6ad3d225 3883 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3884
3885 RETPUSHYES;
3886nope:
3887 if (!errno)
93189314 3888 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3889 RETPUSHUNDEF;
3890#else
cea2e8a9 3891 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3892#endif
3893}
3894
3895PP(pp_rewinddir)
3896{
a0d0e21e 3897#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3898 dSP;
a0d0e21e
LW		 3899 GV *gv = (GV*)POPs;
3900 register IO *io = GvIOn(gv);
3901
3902 if (!io || !IoDIRP(io))
3903 goto nope;
3904
6ad3d225 3905 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3906 RETPUSHYES;
3907nope:
3908 if (!errno)
93189314 3909 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3910 RETPUSHUNDEF;
3911#else
cea2e8a9 3912 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3913#endif
3914}
3915
3916PP(pp_closedir)
3917{
a0d0e21e 3918#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3919 dSP;
a0d0e21e
LW		 3920 GV *gv = (GV*)POPs;
3921 register IO *io = GvIOn(gv);
3922
3923 if (!io || !IoDIRP(io))
3924 goto nope;
3925
3926#ifdef VOID_CLOSEDIR
6ad3d225 3927 PerlDir_close(IoDIRP(io));
a0d0e21e 3928#else
6ad3d225 3929 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3930 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3931 goto nope;
748a9306 3932 }
a0d0e21e
LW		 3933#endif
3934 IoDIRP(io) = 0;
3935
3936 RETPUSHYES;
3937nope:
3938 if (!errno)
93189314 3939 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3940 RETPUSHUNDEF;
3941#else
cea2e8a9 3942 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3943#endif
3944}
3945
3946/* Process control. */
3947
3948PP(pp_fork)
3949{
44a8e56a 3950#ifdef HAS_FORK
39644a26 3951 dSP; dTARGET;
761237fe 3952 Pid_t childpid;
a0d0e21e
LW		 3953 GV *tmpgv;
3954
3955 EXTEND(SP, 1);
45bc9206 3956 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3957 childpid = PerlProc_fork();
a0d0e21e
LW		 3958 if (childpid < 0)
3959 RETSETUNDEF;
3960 if (!childpid) {
3961 /*SUPPRESS 560*/
306196c3
MS		 3962 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3963 SvREADONLY_off(GvSV(tmpgv));
146174a9 3964 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3965 SvREADONLY_on(GvSV(tmpgv));
3966 }
4d76a344
RGS		 3967#ifdef THREADS_HAVE_PIDS
3968 PL_ppid = (IV)getppid();
3969#endif
3280af22 3970 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 3971 }
3972 PUSHi(childpid);
3973 RETURN;
3974#else
146174a9 3975# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3976 dSP; dTARGET;
146174a9
CB		 3977 Pid_t childpid;
3978
3979 EXTEND(SP, 1);
3980 PERL_FLUSHALL_FOR_CHILD;
3981 childpid = PerlProc_fork();
60fa28ff
GS		 3982 if (childpid == -1)
3983 RETSETUNDEF;
146174a9
CB		 3984 PUSHi(childpid);
3985 RETURN;
3986# else
0322a713 3987 DIE(aTHX_ PL_no_func, "fork");
146174a9 3988# endif
a0d0e21e
LW		 3989#endif
3990}
3991
3992PP(pp_wait)
3993{
301e8125 3994#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3995 dSP; dTARGET;
761237fe 3996 Pid_t childpid;
a0d0e21e 3997 int argflags;
a0d0e21e 3998
0a0ada86 3999#ifdef PERL_OLD_SIGNALS
44a8e56a 4000 childpid = wait4pid(-1, &argflags, 0);
0a0ada86
NIS		 4001#else
4002 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
4003 PERL_ASYNC_CHECK();
4004 }
4005#endif
68a29c53
GS		 4006# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4007 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4008 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4009# else
f86702cc 4010 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4011# endif
44a8e56a 4012 XPUSHi(childpid);
a0d0e21e
LW		 4013 RETURN;
4014#else
0322a713 4015 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4016#endif
4017}
4018
4019PP(pp_waitpid)
4020{
301e8125 4021#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4022 dSP; dTARGET;
761237fe 4023 Pid_t childpid;
a0d0e21e
LW		 4024 int optype;
4025 int argflags;
a0d0e21e 4026
a0d0e21e
LW		 4027 optype = POPi;
4028 childpid = TOPi;
0a0ada86 4029#ifdef PERL_OLD_SIGNALS
a0d0e21e 4030 childpid = wait4pid(childpid, &argflags, optype);
0a0ada86
NIS		 4031#else
4032 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4033 PERL_ASYNC_CHECK();
4034 }
4035#endif
68a29c53
GS		 4036# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4037 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4038 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4039# else
f86702cc 4040 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4041# endif
44a8e56a 4042 SETi(childpid);
a0d0e21e
LW		 4043 RETURN;
4044#else
0322a713 4045 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4046#endif
4047}
4048
4049PP(pp_system)
4050{
39644a26 4051 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4052 I32 value;
2d8e6c8d 4053 STRLEN n_a;
76ffd3b9 4054 int result;
e7766f89 4055 I32 did_pipes = 0;
a0d0e21e 4056
bbd7eb8a
RD		 4057 if (PL_tainting) {
4058 TAINT_ENV();
4059 while (++MARK <= SP) {
4060 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4061 if (PL_tainted)
bbd7eb8a
RD		 4062 break;
4063 }
4064 MARK = ORIGMARK;
5a445156 4065 TAINT_PROPER("system");
a0d0e21e 4066 }
45bc9206 4067 PERL_FLUSHALL_FOR_CHILD;
273b0206 4068#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4069 {
eb160463
GS		 4070 Pid_t childpid;
4071 int pp[2];
4072
4073 if (PerlProc_pipe(pp) >= 0)
4074 did_pipes = 1;
4075 while ((childpid = PerlProc_fork()) == -1) {
4076 if (errno != EAGAIN) {
4077 value = -1;
4078 SP = ORIGMARK;
4079 PUSHi(value);
4080 if (did_pipes) {
4081 PerlLIO_close(pp[0]);
4082 PerlLIO_close(pp[1]);
4083 }
4084 RETURN;
4085 }
4086 sleep(5);
4087 }
4088 if (childpid > 0) {
4089 Sigsave_t ihand,qhand; /* place to save signals during system() */
4090 int status;
4091
4092 if (did_pipes)
4093 PerlLIO_close(pp[1]);
64ca3a65 4094#ifndef PERL_MICRO
eb160463
GS		 4095 rsignal_save(SIGINT, SIG_IGN, &ihand);
4096 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4097#endif
eb160463
GS		 4098 do {
4099 result = wait4pid(childpid, &status, 0);
4100 } while (result == -1 && errno == EINTR);
64ca3a65 4101#ifndef PERL_MICRO
eb160463
GS		 4102 (void)rsignal_restore(SIGINT, &ihand);
4103 (void)rsignal_restore(SIGQUIT, &qhand);
4104#endif
4105 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4106 do_execfree(); /* free any memory child malloced on fork */
4107 SP = ORIGMARK;
4108 if (did_pipes) {
4109 int errkid;
4110 int n = 0, n1;
4111
4112 while (n < sizeof(int)) {
4113 n1 = PerlLIO_read(pp[0],
4114 (void*)(((char*)&errkid)+n),
4115 (sizeof(int)) - n);
4116 if (n1 <= 0)
4117 break;
4118 n += n1;
4119 }
4120 PerlLIO_close(pp[0]);
4121 if (n) { /* Error */
4122 if (n != sizeof(int))
4123 DIE(aTHX_ "panic: kid popen errno read");
4124 errno = errkid; /* Propagate errno from kid */
4125 STATUS_CURRENT = -1;
4126 }
4127 }
4128 PUSHi(STATUS_CURRENT);
4129 RETURN;
4130 }
4131 if (did_pipes) {
4132 PerlLIO_close(pp[0]);
d5a9bfb0 4133#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4134 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4135#endif
eb160463 4136 }
e0a1f643
JH		 4137 if (PL_op->op_flags & OPf_STACKED) {
4138 SV *really = *++MARK;
4139 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4140 }
4141 else if (SP - MARK != 1)
4142 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4143 else {
4144 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4145 }
4146 PerlProc__exit(-1);
d5a9bfb0 4147 }
c3293030 4148#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4149 PL_statusvalue = 0;
4150 result = 0;
911d147d 4151 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4152 SV *really = *++MARK;
54725af6
GS		 4153# ifdef WIN32
4154 value = (I32)do_aspawn(really, MARK, SP);
4155# else
c5be433b 4156 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4157# endif
a0d0e21e 4158 }
54725af6
GS		 4159 else if (SP - MARK != 1) {
4160# ifdef WIN32
4161 value = (I32)do_aspawn(Nullsv, MARK, SP);
4162# else
c5be433b 4163 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4164# endif
4165 }
a0d0e21e 4166 else {
c5be433b 4167 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4168 }
922b1888
GS		 4169 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4170 result = 1;
f86702cc 4171 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4172 do_execfree();
4173 SP = ORIGMARK;
922b1888 4174 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4175#endif /* !FORK or VMS */
4176 RETURN;
4177}
4178
4179PP(pp_exec)
4180{
39644a26 4181 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4182 I32 value;
2d8e6c8d 4183 STRLEN n_a;
a0d0e21e 4184
bbd7eb8a
RD		 4185 if (PL_tainting) {
4186 TAINT_ENV();
4187 while (++MARK <= SP) {
4188 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4189 if (PL_tainted)
bbd7eb8a
RD		 4190 break;
4191 }
4192 MARK = ORIGMARK;
5a445156 4193 TAINT_PROPER("exec");
bbd7eb8a 4194 }
45bc9206 4195 PERL_FLUSHALL_FOR_CHILD;
533c011a 4196 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4197 SV *really = *++MARK;
4198 value = (I32)do_aexec(really, MARK, SP);
4199 }
4200 else if (SP - MARK != 1)
4201#ifdef VMS
4202 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4203#else
092bebab
JH		 4204# ifdef __OPEN_VM
4205 {
c5be433b 4206 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4207 value = 0;
4208 }
4209# else
a0d0e21e 4210 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4211# endif
a0d0e21e
LW		 4212#endif
4213 else {
a0d0e21e 4214#ifdef VMS
2d8e6c8d 4215 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4216#else
092bebab 4217# ifdef __OPEN_VM
c5be433b 4218 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4219 value = 0;
4220# else
2d8e6c8d 4221 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4222# endif
a0d0e21e
LW		 4223#endif
4224 }
146174a9 4225
a0d0e21e
LW		 4226 SP = ORIGMARK;
4227 PUSHi(value);
4228 RETURN;
4229}
4230
4231PP(pp_kill)
4232{
9cad6237 4233#ifdef HAS_KILL
39644a26 4234 dSP; dMARK; dTARGET;
a0d0e21e 4235 I32 value;
533c011a 4236 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4237 SP = MARK;
4238 PUSHi(value);
4239 RETURN;
4240#else
0322a713 4241 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4242#endif
4243}
4244
4245PP(pp_getppid)
4246{
4247#ifdef HAS_GETPPID
39644a26 4248 dSP; dTARGET;
4d76a344
RGS		 4249# ifdef THREADS_HAVE_PIDS
4250 XPUSHi( PL_ppid );
4251# else
a0d0e21e 4252 XPUSHi( getppid() );
4d76a344 4253# endif
a0d0e21e
LW		 4254 RETURN;
4255#else
cea2e8a9 4256 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4257#endif
4258}
4259
4260PP(pp_getpgrp)
4261{
4262#ifdef HAS_GETPGRP
39644a26 4263 dSP; dTARGET;
d8a83dd3 4264 Pid_t pid;
9853a804 4265 Pid_t pgrp;
a0d0e21e
LW		 4266
4267 if (MAXARG < 1)
4268 pid = 0;
4269 else
4270 pid = SvIVx(POPs);
c3293030 4271#ifdef BSD_GETPGRP
9853a804 4272 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4273#else
146174a9 4274 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4275 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4276 pgrp = getpgrp();
a0d0e21e 4277#endif
9853a804 4278 XPUSHi(pgrp);
a0d0e21e
LW		 4279 RETURN;
4280#else
cea2e8a9 4281 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4282#endif
4283}
4284
4285PP(pp_setpgrp)
4286{
4287#ifdef HAS_SETPGRP
39644a26 4288 dSP; dTARGET;
d8a83dd3
JH		 4289 Pid_t pgrp;
4290 Pid_t pid;
a0d0e21e
LW		 4291 if (MAXARG < 2) {
4292 pgrp = 0;
4293 pid = 0;
4294 }
4295 else {
4296 pgrp = POPi;
4297 pid = TOPi;
4298 }
4299
4300 TAINT_PROPER("setpgrp");
c3293030
IZ		 4301#ifdef BSD_SETPGRP
4302 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4303#else
146174a9
CB		 4304 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4305 || (pid != 0 && pid != PerlProc_getpid()))
4306 {
4307 DIE(aTHX_ "setpgrp can't take arguments");
4308 }
a0d0e21e
LW		 4309 SETi( setpgrp() >= 0 );
4310#endif /* USE_BSDPGRP */
4311 RETURN;
4312#else
cea2e8a9 4313 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4314#endif
4315}
4316
4317PP(pp_getpriority)
4318{
a0d0e21e 4319#ifdef HAS_GETPRIORITY
9cad6237 4320 dSP; dTARGET;
d05c1ba0
JH		 4321 int who = POPi;
4322 int which = TOPi;
a0d0e21e
LW		 4323 SETi( getpriority(which, who) );
4324 RETURN;
4325#else
cea2e8a9 4326 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4327#endif
4328}
4329
4330PP(pp_setpriority)
4331{
a0d0e21e 4332#ifdef HAS_SETPRIORITY
9cad6237 4333 dSP; dTARGET;
d05c1ba0
JH		 4334 int niceval = POPi;
4335 int who = POPi;
4336 int which = TOPi;
a0d0e21e
LW		 4337 TAINT_PROPER("setpriority");
4338 SETi( setpriority(which, who, niceval) >= 0 );
4339 RETURN;
4340#else
cea2e8a9 4341 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4342#endif
4343}
4344
4345/* Time calls. */
4346
4347PP(pp_time)
4348{
39644a26 4349 dSP; dTARGET;
cbdc8872 4350#ifdef BIG_TIME
4351 XPUSHn( time(Null(Time_t*)) );
4352#else
a0d0e21e 4353 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4354#endif
a0d0e21e
LW		 4355 RETURN;
4356}
4357
a0d0e21e
LW		 4358PP(pp_tms)
4359{
9cad6237 4360#ifdef HAS_TIMES
39644a26 4361 dSP;
a0d0e21e 4362 EXTEND(SP, 4);
a0d0e21e 4363#ifndef VMS
3280af22 4364 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4365#else
6b88bc9c 4366 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4367 /* struct tms, though same data */
4368 /* is returned. */
a0d0e21e
LW		 4369#endif
4370
5311654c 4371 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4372 if (GIMME == G_ARRAY) {
5311654c
JH		 4373 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4374 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4375 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4376 }
4377 RETURN;
9cad6237
JH		 4378#else
4379 DIE(aTHX_ "times not implemented");
55497cff 4380#endif /* HAS_TIMES */
a0d0e21e
LW		 4381}
4382
4383PP(pp_localtime)
4384{
cea2e8a9 4385 return pp_gmtime();
a0d0e21e
LW		 4386}
4387
4388PP(pp_gmtime)
4389{
39644a26 4390 dSP;
a0d0e21e
LW		 4391 Time_t when;
4392 struct tm *tmbuf;
4393 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4394 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4395 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4396
4397 if (MAXARG < 1)
4398 (void)time(&when);
4399 else
cbdc8872 4400#ifdef BIG_TIME
4401 when = (Time_t)SvNVx(POPs);
4402#else
a0d0e21e 4403 when = (Time_t)SvIVx(POPs);
cbdc8872 4404#endif
a0d0e21e 4405
533c011a 4406 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4407 tmbuf = localtime(&when);
4408 else
4409 tmbuf = gmtime(&when);
4410
a0d0e21e 4411 if (GIMME != G_ARRAY) {
46fc3d4c 4412 SV *tsv;
9a5ff6d9
AB		 4413 EXTEND(SP, 1);
4414 EXTEND_MORTAL(1);
a0d0e21e
LW		 4415 if (!tmbuf)
4416 RETPUSHUNDEF;
be28567c 4417 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4418 dayname[tmbuf->tm_wday],
4419 monname[tmbuf->tm_mon],
be28567c
GS		 4420 tmbuf->tm_mday,
4421 tmbuf->tm_hour,
4422 tmbuf->tm_min,
4423 tmbuf->tm_sec,
4424 tmbuf->tm_year + 1900);
46fc3d4c 4425 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4426 }
4427 else if (tmbuf) {
9a5ff6d9
AB		 4428 EXTEND(SP, 9);
4429 EXTEND_MORTAL(9);
4430 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4431 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4432 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4433 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4434 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4435 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4436 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4437 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4438 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4439 }
4440 RETURN;
4441}
4442
4443PP(pp_alarm)
4444{
9cad6237 4445#ifdef HAS_ALARM
39644a26 4446 dSP; dTARGET;
a0d0e21e 4447 int anum;
a0d0e21e
LW		 4448 anum = POPi;
4449 anum = alarm((unsigned int)anum);
4450 EXTEND(SP, 1);
4451 if (anum < 0)
4452 RETPUSHUNDEF;
c6419e06 4453 PUSHi(anum);
a0d0e21e
LW		 4454 RETURN;
4455#else
0322a713 4456 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4457#endif
4458}
4459
4460PP(pp_sleep)
4461{
39644a26 4462 dSP; dTARGET;
a0d0e21e
LW		 4463 I32 duration;
4464 Time_t lasttime;
4465 Time_t when;
4466
4467 (void)time(&lasttime);
4468 if (MAXARG < 1)
76e3520e 4469 PerlProc_pause();
a0d0e21e
LW		 4470 else {
4471 duration = POPi;
76e3520e 4472 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4473 }
4474 (void)time(&when);
4475 XPUSHi(when - lasttime);
4476 RETURN;
4477}
4478
4479/* Shared memory. */
4480
4481PP(pp_shmget)
4482{
cea2e8a9 4483 return pp_semget();
a0d0e21e
LW		 4484}
4485
4486PP(pp_shmctl)
4487{
cea2e8a9 4488 return pp_semctl();
a0d0e21e
LW		 4489}
4490
4491PP(pp_shmread)
4492{
cea2e8a9 4493 return pp_shmwrite();
a0d0e21e
LW		 4494}
4495
4496PP(pp_shmwrite)
4497{
4498#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4499 dSP; dMARK; dTARGET;
533c011a 4500 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4501 SP = MARK;
4502 PUSHi(value);
4503 RETURN;
4504#else
cea2e8a9 4505 return pp_semget();
a0d0e21e
LW		 4506#endif
4507}
4508
4509/* Message passing. */
4510
4511PP(pp_msgget)
4512{
cea2e8a9 4513 return pp_semget();
a0d0e21e
LW		 4514}
4515
4516PP(pp_msgctl)
4517{
cea2e8a9 4518 return pp_semctl();
a0d0e21e
LW		 4519}
4520
4521PP(pp_msgsnd)
4522{
4523#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4524 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4525 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4526 SP = MARK;
4527 PUSHi(value);
4528 RETURN;
4529#else
cea2e8a9 4530 return pp_semget();
a0d0e21e
LW		 4531#endif
4532}
4533
4534PP(pp_msgrcv)
4535{
4536#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4537 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4538 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4539 SP = MARK;
4540 PUSHi(value);
4541 RETURN;
4542#else
cea2e8a9 4543 return pp_semget();
a0d0e21e
LW		 4544#endif
4545}
4546
4547/* Semaphores. */
4548
4549PP(pp_semget)
4550{
4551#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4552 dSP; dMARK; dTARGET;
533c011a 4553 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4554 SP = MARK;
4555 if (anum == -1)
4556 RETPUSHUNDEF;
4557 PUSHi(anum);
4558 RETURN;
4559#else
cea2e8a9 4560 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4561#endif
4562}
4563
4564PP(pp_semctl)
4565{
4566#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4567 dSP; dMARK; dTARGET;
533c011a 4568 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4569 SP = MARK;
4570 if (anum == -1)
4571 RETSETUNDEF;
4572 if (anum != 0) {
4573 PUSHi(anum);
4574 }
4575 else {
8903cb82 4576 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4577 }
4578 RETURN;
4579#else
cea2e8a9 4580 return pp_semget();
a0d0e21e
LW		 4581#endif
4582}
4583
4584PP(pp_semop)
4585{
4586#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4587 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4588 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4589 SP = MARK;
4590 PUSHi(value);
4591 RETURN;
4592#else
cea2e8a9 4593 return pp_semget();
a0d0e21e
LW		 4594#endif
4595}
4596
4597/* Get system info. */
4598
4599PP(pp_ghbyname)
4600{
693762b4 4601#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4602 return pp_ghostent();
a0d0e21e 4603#else
cea2e8a9 4604 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4605#endif
4606}
4607
4608PP(pp_ghbyaddr)
4609{
693762b4 4610#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4611 return pp_ghostent();
a0d0e21e 4612#else
cea2e8a9 4613 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4614#endif
4615}
4616
4617PP(pp_ghostent)
4618{
693762b4 4619#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4620 dSP;
533c011a 4621 I32 which = PL_op->op_type;
a0d0e21e
LW		 4622 register char **elem;
4623 register SV *sv;
dc45a647 4624#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4625 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4626 struct hostent *gethostbyname(Netdb_name_t);
4627 struct hostent *gethostent(void);
a0d0e21e
LW		 4628#endif
4629 struct hostent *hent;
4630 unsigned long len;
2d8e6c8d 4631 STRLEN n_a;
a0d0e21e
LW		 4632
4633 EXTEND(SP, 10);
edd309b7 4634 if (which == OP_GHBYNAME) {
dc45a647 4635#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4636 char* name = POPpbytex;
4637 hent = PerlSock_gethostbyname(name);
dc45a647 4638#else
cea2e8a9 4639 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4640#endif
edd309b7 4641 }
a0d0e21e 4642 else if (which == OP_GHBYADDR) {
dc45a647 4643#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4644 int addrtype = POPi;
748a9306 4645 SV *addrsv = POPs;
a0d0e21e 4646 STRLEN addrlen;
595ae481 4647 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4648
4599a1de 4649 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4650#else
cea2e8a9 4651 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4652#endif
a0d0e21e
LW		 4653 }
4654 else
4655#ifdef HAS_GETHOSTENT
6ad3d225 4656 hent = PerlSock_gethostent();
a0d0e21e 4657#else
cea2e8a9 4658 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4659#endif
4660
4661#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4662 if (!hent) {
4663#ifdef USE_REENTRANT_API
4664# ifdef USE_GETHOSTENT_ERRNO
4665 h_errno = PL_reentrant_buffer->_gethostent_errno;
4666# endif
4667#endif
4668 STATUS_NATIVE_SET(h_errno);
4669 }
a0d0e21e
LW		 4670#endif
4671
4672 if (GIMME != G_ARRAY) {
4673 PUSHs(sv = sv_newmortal());
4674 if (hent) {
4675 if (which == OP_GHBYNAME) {
fd0af264 4676 if (hent->h_addr)
4677 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4678 }
4679 else
4680 sv_setpv(sv, (char*)hent->h_name);
4681 }
4682 RETURN;
4683 }
4684
4685 if (hent) {
3280af22 4686 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4687 sv_setpv(sv, (char*)hent->h_name);
3280af22 4688 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4689 for (elem = hent->h_aliases; elem && *elem; elem++) {
4690 sv_catpv(sv, *elem);
4691 if (elem[1])
4692 sv_catpvn(sv, " ", 1);
4693 }
3280af22 4694 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4695 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4696 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4697 len = hent->h_length;
1e422769 4698 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4699#ifdef h_addr
4700 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4701 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4702 sv_setpvn(sv, *elem, len);
4703 }
4704#else
6b88bc9c 4705 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4706 if (hent->h_addr)
4707 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4708#endif /* h_addr */
4709 }
4710 RETURN;
4711#else
cea2e8a9 4712 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4713#endif
4714}
4715
4716PP(pp_gnbyname)
4717{
693762b4 4718#ifdef HAS_GETNETBYNAME
cea2e8a9 4719 return pp_gnetent();
a0d0e21e 4720#else
cea2e8a9 4721 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4722#endif
4723}
4724
4725PP(pp_gnbyaddr)
4726{
693762b4 4727#ifdef HAS_GETNETBYADDR
cea2e8a9 4728 return pp_gnetent();
a0d0e21e 4729#else
cea2e8a9 4730 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4731#endif
4732}
4733
4734PP(pp_gnetent)
4735{
693762b4 4736#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4737 dSP;
533c011a 4738 I32 which = PL_op->op_type;
a0d0e21e
LW		 4739 register char **elem;
4740 register SV *sv;
dc45a647 4741#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4742 struct netent *getnetbyaddr(Netdb_net_t, int);
4743 struct netent *getnetbyname(Netdb_name_t);
4744 struct netent *getnetent(void);
8ac85365 4745#endif
a0d0e21e 4746 struct netent *nent;
2d8e6c8d 4747 STRLEN n_a;
a0d0e21e 4748
edd309b7 4749 if (which == OP_GNBYNAME){
dc45a647 4750#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4751 char *name = POPpbytex;
4752 nent = PerlSock_getnetbyname(name);
dc45a647 4753#else
cea2e8a9 4754 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4755#endif
edd309b7 4756 }
a0d0e21e 4757 else if (which == OP_GNBYADDR) {
dc45a647 4758#ifdef HAS_GETNETBYADDR
a0d0e21e 4759 int addrtype = POPi;
3bb7c1b4 4760 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4761 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4762#else
cea2e8a9 4763 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4764#endif
a0d0e21e
LW		 4765 }
4766 else
dc45a647 4767#ifdef HAS_GETNETENT
76e3520e 4768 nent = PerlSock_getnetent();
dc45a647 4769#else
cea2e8a9 4770 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4771#endif
a0d0e21e 4772
10bc17b6
JH		 4773#ifdef HOST_NOT_FOUND
4774 if (!nent) {
4775#ifdef USE_REENTRANT_API
4776# ifdef USE_GETNETENT_ERRNO
4777 h_errno = PL_reentrant_buffer->_getnetent_errno;
4778# endif
4779#endif
4780 STATUS_NATIVE_SET(h_errno);
4781 }
4782#endif
4783
a0d0e21e
LW		 4784 EXTEND(SP, 4);
4785 if (GIMME != G_ARRAY) {
4786 PUSHs(sv = sv_newmortal());
4787 if (nent) {
4788 if (which == OP_GNBYNAME)
1e422769 4789 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4790 else
4791 sv_setpv(sv, nent->n_name);
4792 }
4793 RETURN;
4794 }
4795
4796 if (nent) {
3280af22 4797 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4798 sv_setpv(sv, nent->n_name);
3280af22 4799 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4800 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4801 sv_catpv(sv, *elem);
4802 if (elem[1])
4803 sv_catpvn(sv, " ", 1);
4804 }
3280af22 4805 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4806 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4807 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4808 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4809 }
4810
4811 RETURN;
4812#else
cea2e8a9 4813 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4814#endif
4815}
4816
4817PP(pp_gpbyname)
4818{
693762b4 4819#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4820 return pp_gprotoent();
a0d0e21e 4821#else
cea2e8a9 4822 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4823#endif
4824}
4825
4826PP(pp_gpbynumber)
4827{
693762b4 4828#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4829 return pp_gprotoent();
a0d0e21e 4830#else
cea2e8a9 4831 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4832#endif
4833}
4834
4835PP(pp_gprotoent)
4836{
693762b4 4837#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4838 dSP;
533c011a 4839 I32 which = PL_op->op_type;
a0d0e21e 4840 register char **elem;
301e8125 4841 register SV *sv;
dc45a647 4842#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4843 struct protoent *getprotobyname(Netdb_name_t);
4844 struct protoent *getprotobynumber(int);
4845 struct protoent *getprotoent(void);
8ac85365 4846#endif
a0d0e21e 4847 struct protoent *pent;
2d8e6c8d 4848 STRLEN n_a;
a0d0e21e 4849
edd309b7 4850 if (which == OP_GPBYNAME) {
e5c9fcd0 4851#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4852 char* name = POPpbytex;
4853 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4854#else
cea2e8a9 4855 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4856#endif
edd309b7
JH		 4857 }
4858 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4859#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4860 int number = POPi;
4861 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4862#else
edd309b7 4863 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4864#endif
edd309b7 4865 }
a0d0e21e 4866 else
e5c9fcd0 4867#ifdef HAS_GETPROTOENT
6ad3d225 4868 pent = PerlSock_getprotoent();
e5c9fcd0 4869#else
cea2e8a9 4870 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4871#endif
a0d0e21e
LW		 4872
4873 EXTEND(SP, 3);
4874 if (GIMME != G_ARRAY) {
4875 PUSHs(sv = sv_newmortal());
4876 if (pent) {
4877 if (which == OP_GPBYNAME)
1e422769 4878 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4879 else
4880 sv_setpv(sv, pent->p_name);
4881 }
4882 RETURN;
4883 }
4884
4885 if (pent) {
3280af22 4886 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4887 sv_setpv(sv, pent->p_name);
3280af22 4888 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4889 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4890 sv_catpv(sv, *elem);
4891 if (elem[1])
4892 sv_catpvn(sv, " ", 1);
4893 }
3280af22 4894 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4895 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4896 }
4897
4898 RETURN;
4899#else
cea2e8a9 4900 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4901#endif
4902}
4903
4904PP(pp_gsbyname)
4905{
9ec75305 4906#ifdef HAS_GETSERVBYNAME
cea2e8a9 4907 return pp_gservent();
a0d0e21e 4908#else
cea2e8a9 4909 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4910#endif
4911}
4912
4913PP(pp_gsbyport)
4914{
9ec75305 4915#ifdef HAS_GETSERVBYPORT
cea2e8a9 4916 return pp_gservent();
a0d0e21e 4917#else
cea2e8a9 4918 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4919#endif
4920}
4921
4922PP(pp_gservent)
4923{
693762b4 4924#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4925 dSP;
533c011a 4926 I32 which = PL_op->op_type;
a0d0e21e
LW		 4927 register char **elem;
4928 register SV *sv;
dc45a647 4929#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4930 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4931 struct servent *getservbyport(int, Netdb_name_t);
4932 struct servent *getservent(void);
8ac85365 4933#endif
a0d0e21e 4934 struct servent *sent;
2d8e6c8d 4935 STRLEN n_a;
a0d0e21e
LW		 4936
4937 if (which == OP_GSBYNAME) {
dc45a647 4938#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4939 char *proto = POPpbytex;
4940 char *name = POPpbytex;
a0d0e21e
LW		 4941
4942 if (proto && !*proto)
4943 proto = Nullch;
4944
6ad3d225 4945 sent = PerlSock_getservbyname(name, proto);
dc45a647 4946#else
cea2e8a9 4947 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4948#endif
a0d0e21e
LW		 4949 }
4950 else if (which == OP_GSBYPORT) {
dc45a647 4951#ifdef HAS_GETSERVBYPORT
42e0c139 4952 char *proto = POPpbytex;
eb160463 4953 unsigned short port = (unsigned short)POPu;
a0d0e21e 4954
2b872cca
SR		 4955 if (proto && !*proto)
4956 proto = Nullch;
4957
36477c24 4958#ifdef HAS_HTONS
6ad3d225 4959 port = PerlSock_htons(port);
36477c24 4960#endif
6ad3d225 4961 sent = PerlSock_getservbyport(port, proto);
dc45a647 4962#else
cea2e8a9 4963 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4964#endif
a0d0e21e
LW		 4965 }
4966 else
e5c9fcd0 4967#ifdef HAS_GETSERVENT
6ad3d225 4968 sent = PerlSock_getservent();
e5c9fcd0 4969#else
cea2e8a9 4970 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4971#endif
a0d0e21e
LW		 4972
4973 EXTEND(SP, 4);
4974 if (GIMME != G_ARRAY) {
4975 PUSHs(sv = sv_newmortal());
4976 if (sent) {
4977 if (which == OP_GSBYNAME) {
4978#ifdef HAS_NTOHS
6ad3d225 4979 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4980#else
1e422769 4981 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4982#endif
4983 }
4984 else
4985 sv_setpv(sv, sent->s_name);
4986 }
4987 RETURN;
4988 }
4989
4990 if (sent) {
3280af22 4991 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4992 sv_setpv(sv, sent->s_name);
3280af22 4993 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4994 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4995 sv_catpv(sv, *elem);
4996 if (elem[1])
4997 sv_catpvn(sv, " ", 1);
4998 }
3280af22 4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5000#ifdef HAS_NTOHS
76e3520e 5001 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5002#else
1e422769 5003 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5004#endif
3280af22 5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5006 sv_setpv(sv, sent->s_proto);
5007 }
5008
5009 RETURN;
5010#else
cea2e8a9 5011 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5012#endif
5013}
5014
5015PP(pp_shostent)
5016{
693762b4 5017#ifdef HAS_SETHOSTENT
9cad6237 5018 dSP;
76e3520e 5019 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5020 RETSETYES;
5021#else
cea2e8a9 5022 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5023#endif
5024}
5025
5026PP(pp_snetent)
5027{
693762b4 5028#ifdef HAS_SETNETENT
9cad6237 5029 dSP;
76e3520e 5030 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5031 RETSETYES;
5032#else
cea2e8a9 5033 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5034#endif
5035}
5036
5037PP(pp_sprotoent)
5038{
693762b4 5039#ifdef HAS_SETPROTOENT
9cad6237 5040 dSP;
76e3520e 5041 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5042 RETSETYES;
5043#else
cea2e8a9 5044 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5045#endif
5046}
5047
5048PP(pp_sservent)
5049{
693762b4 5050#ifdef HAS_SETSERVENT
9cad6237 5051 dSP;
76e3520e 5052 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5053 RETSETYES;
5054#else
cea2e8a9 5055 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5056#endif
5057}
5058
5059PP(pp_ehostent)
5060{
693762b4 5061#ifdef HAS_ENDHOSTENT
9cad6237 5062 dSP;
76e3520e 5063 PerlSock_endhostent();
924508f0 5064 EXTEND(SP,1);
a0d0e21e
LW		 5065 RETPUSHYES;
5066#else
cea2e8a9 5067 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5068#endif
5069}
5070
5071PP(pp_enetent)
5072{
693762b4 5073#ifdef HAS_ENDNETENT
9cad6237 5074 dSP;
76e3520e 5075 PerlSock_endnetent();
924508f0 5076 EXTEND(SP,1);
a0d0e21e
LW		 5077 RETPUSHYES;
5078#else
cea2e8a9 5079 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5080#endif
5081}
5082
5083PP(pp_eprotoent)
5084{
693762b4 5085#ifdef HAS_ENDPROTOENT
9cad6237 5086 dSP;
76e3520e 5087 PerlSock_endprotoent();
924508f0 5088 EXTEND(SP,1);
a0d0e21e
LW		 5089 RETPUSHYES;
5090#else
cea2e8a9 5091 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5092#endif
5093}
5094
5095PP(pp_eservent)
5096{
693762b4 5097#ifdef HAS_ENDSERVENT
9cad6237 5098 dSP;
76e3520e 5099 PerlSock_endservent();
924508f0 5100 EXTEND(SP,1);
a0d0e21e
LW		 5101 RETPUSHYES;
5102#else
cea2e8a9 5103 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5104#endif
5105}
5106
5107PP(pp_gpwnam)
5108{
5109#ifdef HAS_PASSWD
cea2e8a9 5110 return pp_gpwent();
a0d0e21e 5111#else
cea2e8a9 5112 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5113#endif
5114}
5115
5116PP(pp_gpwuid)
5117{
5118#ifdef HAS_PASSWD
cea2e8a9 5119 return pp_gpwent();
a0d0e21e 5120#else
cea2e8a9 5121 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5122#endif
5123}
5124
5125PP(pp_gpwent)
5126{
0994c4d0 5127#ifdef HAS_PASSWD
9cad6237 5128 dSP;
533c011a 5129 I32 which = PL_op->op_type;
a0d0e21e 5130 register SV *sv;
2d8e6c8d 5131 STRLEN n_a;
e3aefe8d 5132 struct passwd *pwent = NULL;
301e8125 5133 /*
bcf53261
JH		 5134 * We currently support only the SysV getsp* shadow password interface.
5135 * The interface is declared in <shadow.h> and often one needs to link
5136 * with -lsecurity or some such.
5137 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5138 * (and SCO?)
5139 *
5140 * AIX getpwnam() is clever enough to return the encrypted password
5141 * only if the caller (euid?) is root.
5142 *
5143 * There are at least two other shadow password APIs. Many platforms
5144 * seem to contain more than one interface for accessing the shadow
5145 * password databases, possibly for compatibility reasons.
3813c136 5146 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5147 * are much more complicated, but also very similar to each other.
5148 *
5149 * <sys/types.h>
5150 * <sys/security.h>
5151 * <prot.h>
5152 * struct pr_passwd *getprpw*();
5153 * The password is in
3813c136
JH		 5154 * char getprpw*(...).ufld.fd_encrypt[]
5155 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5156 *
5157 * <sys/types.h>
5158 * <sys/security.h>
5159 * <prot.h>
5160 * struct es_passwd *getespw*();
5161 * The password is in
5162 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5163 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5164 *
3813c136 5165 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5166 *
5167 * In HP-UX for getprpw*() the manual page claims that one should include
5168 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5169 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5170 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5171 *
5172 * Note that <sys/security.h> is already probed for, but currently
5173 * it is only included in special cases.
301e8125 5174 *
bcf53261
JH		 5175 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5176 * be preferred interface, even though also the getprpw*() interface
5177 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5178 * One also needs to call set_auth_parameters() in main() before
5179 * doing anything else, whether one is using getespw*() or getprpw*().
5180 *
5181 * Note that accessing the shadow databases can be magnitudes
5182 * slower than accessing the standard databases.
bcf53261
JH		 5183 *
5184 * --jhi
5185 */
a0d0e21e 5186
e3aefe8d
JH		 5187 switch (which) {
5188 case OP_GPWNAM:
edd309b7
JH		 5189 {
5190 char* name = POPpbytex;
5191 pwent = getpwnam(name);
5192 }
5193 break;
e3aefe8d 5194 case OP_GPWUID:
edd309b7
JH		 5195 {
5196 Uid_t uid = POPi;
5197 pwent = getpwuid(uid);
5198 }
e3aefe8d
JH		 5199 break;
5200 case OP_GPWENT:
1883634f 5201# ifdef HAS_GETPWENT
e3aefe8d 5202 pwent = getpwent();
faea9016
IRC		 5203#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5204 if (pwent) pwent = getpwnam(pwent->pw_name);
5205#endif
1883634f 5206# else
a45d1c96 5207 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5208# endif
e3aefe8d
JH		 5209 break;
5210 }
8c0bfa08 5211
a0d0e21e
LW		 5212 EXTEND(SP, 10);
5213 if (GIMME != G_ARRAY) {
5214 PUSHs(sv = sv_newmortal());
5215 if (pwent) {
5216 if (which == OP_GPWNAM)
1883634f 5217# if Uid_t_sign <= 0
1e422769 5218 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5219# else
23dcd6c8 5220 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5221# endif
a0d0e21e
LW		 5222 else
5223 sv_setpv(sv, pwent->pw_name);
5224 }
5225 RETURN;
5226 }
5227
5228 if (pwent) {
3280af22 5229 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5230 sv_setpv(sv, pwent->pw_name);
6ee623d5 5231
3280af22 5232 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5233 SvPOK_off(sv);
5234 /* If we have getspnam(), we try to dig up the shadow
5235 * password. If we are underprivileged, the shadow
5236 * interface will set the errno to EACCES or similar,
5237 * and return a null pointer. If this happens, we will
5238 * use the dummy password (usually "*" or "x") from the
5239 * standard password database.
5240 *
5241 * In theory we could skip the shadow call completely
5242 * if euid != 0 but in practice we cannot know which
5243 * security measures are guarding the shadow databases
5244 * on a random platform.
5245 *
5246 * Resist the urge to use additional shadow interfaces.
5247 * Divert the urge to writing an extension instead.
5248 *
5249 * --jhi */
e3aefe8d 5250# ifdef HAS_GETSPNAM
3813c136
JH		 5251 {
5252 struct spwd *spwent;
5253 int saverrno; /* Save and restore errno so that
5254 * underprivileged attempts seem
5255 * to have never made the unsccessful
5256 * attempt to retrieve the shadow password. */
5257
5258 saverrno = errno;
5259 spwent = getspnam(pwent->pw_name);
5260 errno = saverrno;
5261 if (spwent && spwent->sp_pwdp)
5262 sv_setpv(sv, spwent->sp_pwdp);
5263 }
f1066039 5264# endif
e020c87d 5265# ifdef PWPASSWD
3813c136
JH		 5266 if (!SvPOK(sv)) /* Use the standard password, then. */
5267 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5268# endif
3813c136 5269
1883634f 5270# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5271 /* passwd is tainted because user himself can diddle with it.
5272 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5273 SvTAINTED_on(sv);
1883634f 5274# endif
6ee623d5 5275
3280af22 5276 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5277# if Uid_t_sign <= 0
1e422769 5278 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5279# else
23dcd6c8 5280 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5281# endif
6ee623d5 5282
3280af22 5283 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5284# if Uid_t_sign <= 0
1e422769 5285 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5286# else
23dcd6c8 5287 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5288# endif
3813c136
JH		 5289 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5290 * because of the poor interface of the Perl getpw*(),
5291 * not because there's some standard/convention saying so.
5292 * A better interface would have been to return a hash,
5293 * but we are accursed by our history, alas. --jhi. */
3280af22 5294 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5295# ifdef PWCHANGE
1e422769 5296 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5297# else
1883634f
JH		 5298# ifdef PWQUOTA
5299 sv_setiv(sv, (IV)pwent->pw_quota);
5300# else
a1757be1 5301# ifdef PWAGE
a0d0e21e 5302 sv_setpv(sv, pwent->pw_age);
a1757be1 5303# endif
6ee623d5
GS		 5304# endif
5305# endif
6ee623d5 5306
3813c136
JH		 5307 /* pw_class and pw_comment are mutually exclusive--.
5308 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5310# ifdef PWCLASS
a0d0e21e 5311 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5312# else
5313# ifdef PWCOMMENT
a0d0e21e 5314 sv_setpv(sv, pwent->pw_comment);
1883634f 5315# endif
6ee623d5 5316# endif
6ee623d5 5317
3280af22 5318 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5319# ifdef PWGECOS
a0d0e21e 5320 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5321# endif
5322# ifndef INCOMPLETE_TAINTS
d2719217 5323 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5324 SvTAINTED_on(sv);
1883634f 5325# endif
6ee623d5 5326
3280af22 5327 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5328 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5329
3280af22 5330 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5331 sv_setpv(sv, pwent->pw_shell);
1883634f 5332# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5333 /* pw_shell is tainted because user himself can diddle with it. */
5334 SvTAINTED_on(sv);
1883634f 5335# endif
6ee623d5 5336
1883634f 5337# ifdef PWEXPIRE
6b88bc9c 5338 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5339 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5340# endif
a0d0e21e
LW		 5341 }
5342 RETURN;
5343#else
cea2e8a9 5344 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5345#endif
5346}
5347
5348PP(pp_spwent)
5349{
d493b042 5350#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5351 dSP;
a0d0e21e
LW		 5352 setpwent();
5353 RETPUSHYES;
5354#else
cea2e8a9 5355 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5356#endif
5357}
5358
5359PP(pp_epwent)
5360{
28e8609d 5361#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5362 dSP;
a0d0e21e
LW		 5363 endpwent();
5364 RETPUSHYES;
5365#else
cea2e8a9 5366 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5367#endif
5368}
5369
5370PP(pp_ggrnam)
5371{
5372#ifdef HAS_GROUP
cea2e8a9 5373 return pp_ggrent();
a0d0e21e 5374#else
cea2e8a9 5375 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5376#endif
5377}
5378
5379PP(pp_ggrgid)
5380{
5381#ifdef HAS_GROUP
cea2e8a9 5382 return pp_ggrent();
a0d0e21e 5383#else
cea2e8a9 5384 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5385#endif
5386}
5387
5388PP(pp_ggrent)
5389{
0994c4d0 5390#ifdef HAS_GROUP
9cad6237 5391 dSP;
533c011a 5392 I32 which = PL_op->op_type;
a0d0e21e
LW		 5393 register char **elem;
5394 register SV *sv;
5395 struct group *grent;
2d8e6c8d 5396 STRLEN n_a;
a0d0e21e 5397
edd309b7
JH		 5398 if (which == OP_GGRNAM) {
5399 char* name = POPpbytex;
5400 grent = (struct group *)getgrnam(name);
5401 }
5402 else if (which == OP_GGRGID) {
5403 Gid_t gid = POPi;
5404 grent = (struct group *)getgrgid(gid);
5405 }
a0d0e21e 5406 else
0994c4d0 5407#ifdef HAS_GETGRENT
a0d0e21e 5408 grent = (struct group *)getgrent();
0994c4d0
JH		 5409#else
5410 DIE(aTHX_ PL_no_func, "getgrent");
5411#endif
a0d0e21e
LW		 5412
5413 EXTEND(SP, 4);
5414 if (GIMME != G_ARRAY) {
5415 PUSHs(sv = sv_newmortal());
5416 if (grent) {
5417 if (which == OP_GGRNAM)
1e422769 5418 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5419 else
5420 sv_setpv(sv, grent->gr_name);
5421 }
5422 RETURN;
5423 }
5424
5425 if (grent) {
3280af22 5426 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5427 sv_setpv(sv, grent->gr_name);
28e8609d 5428
3280af22 5429 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5430#ifdef GRPASSWD
a0d0e21e 5431 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5432#endif
5433
3280af22 5434 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5435 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5436
5b56e7c5 5437#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5438 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5439 /* In UNICOS/mk (_CRAYMPP) the multithreading
5440 * versions (getgrnam_r, getgrgid_r)
5441 * seem to return an illegal pointer
5442 * as the group members list, gr_mem.
5443 * getgrent() doesn't even have a _r version
5444 * but the gr_mem is poisonous anyway.
5445 * So yes, you cannot get the list of group
5446 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5447 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5448 sv_catpv(sv, *elem);
5449 if (elem[1])
5450 sv_catpvn(sv, " ", 1);
5451 }
3d7e8424 5452#endif
a0d0e21e
LW		 5453 }
5454
5455 RETURN;
5456#else
cea2e8a9 5457 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5458#endif
5459}
5460
5461PP(pp_sgrent)
5462{
28e8609d 5463#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5464 dSP;
a0d0e21e
LW		 5465 setgrent();
5466 RETPUSHYES;
5467#else
cea2e8a9 5468 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5469#endif
5470}
5471
5472PP(pp_egrent)
5473{
28e8609d 5474#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5475 dSP;
a0d0e21e
LW		 5476 endgrent();
5477 RETPUSHYES;
5478#else
cea2e8a9 5479 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5480#endif
5481}
5482
5483PP(pp_getlogin)
5484{
a0d0e21e 5485#ifdef HAS_GETLOGIN
9cad6237 5486 dSP; dTARGET;
a0d0e21e
LW		 5487 char *tmps;
5488 EXTEND(SP, 1);
76e3520e 5489 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5490 RETPUSHUNDEF;
5491 PUSHp(tmps, strlen(tmps));
5492 RETURN;
5493#else
cea2e8a9 5494 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5495#endif
5496}
5497
5498/* Miscellaneous. */
5499
5500PP(pp_syscall)
5501{
d2719217 5502#ifdef HAS_SYSCALL
39644a26 5503 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5504 register I32 items = SP - MARK;
5505 unsigned long a[20];
5506 register I32 i = 0;
5507 I32 retval = -1;
2d8e6c8d 5508 STRLEN n_a;
a0d0e21e 5509
3280af22 5510 if (PL_tainting) {
a0d0e21e 5511 while (++MARK <= SP) {
bbce6d69 5512 if (SvTAINTED(*MARK)) {
5513 TAINT;
5514 break;
5515 }
a0d0e21e
LW		 5516 }
5517 MARK = ORIGMARK;
5518 TAINT_PROPER("syscall");
5519 }
5520
5521 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5522 * or where sizeof(long) != sizeof(char*). But such machines will
5523 * not likely have syscall implemented either, so who cares?
5524 */
5525 while (++MARK <= SP) {
5526 if (SvNIOK(*MARK) || !i)
5527 a[i++] = SvIV(*MARK);
3280af22 5528 else if (*MARK == &PL_sv_undef)
748a9306 5529 a[i++] = 0;
301e8125 5530 else
2d8e6c8d 5531 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5532 if (i > 15)
5533 break;
5534 }
5535 switch (items) {
5536 default:
cea2e8a9 5537 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5538 case 0:
cea2e8a9 5539 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5540 case 1:
5541 retval = syscall(a[0]);
5542 break;
5543 case 2:
5544 retval = syscall(a[0],a[1]);
5545 break;
5546 case 3:
5547 retval = syscall(a[0],a[1],a[2]);
5548 break;
5549 case 4:
5550 retval = syscall(a[0],a[1],a[2],a[3]);
5551 break;
5552 case 5:
5553 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5554 break;
5555 case 6:
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5557 break;
5558 case 7:
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5560 break;
5561 case 8:
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5563 break;
5564#ifdef atarist
5565 case 9:
5566 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5567 break;
5568 case 10:
5569 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5570 break;
5571 case 11:
5572 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5573 a[10]);
5574 break;
5575 case 12:
5576 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5577 a[10],a[11]);
5578 break;
5579 case 13:
5580 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5581 a[10],a[11],a[12]);
5582 break;
5583 case 14:
5584 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5585 a[10],a[11],a[12],a[13]);
5586 break;
5587#endif /* atarist */
5588 }
5589 SP = ORIGMARK;
5590 PUSHi(retval);
5591 RETURN;
5592#else
cea2e8a9 5593 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5594#endif
5595}
5596
ff68c719 5597#ifdef FCNTL_EMULATE_FLOCK
301e8125 5598
ff68c719 5599/* XXX Emulate flock() with fcntl().
5600 What's really needed is a good file locking module.
5601*/
5602
cea2e8a9
GS		 5603static int
5604fcntl_emulate_flock(int fd, int operation)
ff68c719 5605{
5606 struct flock flock;
301e8125 5607
ff68c719 5608 switch (operation & ~LOCK_NB) {
5609 case LOCK_SH:
5610 flock.l_type = F_RDLCK;
5611 break;
5612 case LOCK_EX:
5613 flock.l_type = F_WRLCK;
5614 break;
5615 case LOCK_UN:
5616 flock.l_type = F_UNLCK;
5617 break;
5618 default:
5619 errno = EINVAL;
5620 return -1;
5621 }
5622 flock.l_whence = SEEK_SET;
d9b3e12d 5623 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5624
ff68c719 5625 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5626}
5627
5628#endif /* FCNTL_EMULATE_FLOCK */
5629
5630#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5631
5632/* XXX Emulate flock() with lockf(). This is just to increase
5633 portability of scripts. The calls are not completely
5634 interchangeable. What's really needed is a good file
5635 locking module.
5636*/
5637
76c32331 5638/* The lockf() constants might have been defined in <unistd.h>.
5639 Unfortunately, <unistd.h> causes troubles on some mixed
5640 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5641
5642 Further, the lockf() constants aren't POSIX, so they might not be
5643 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5644 just stick in the SVID values and be done with it. Sigh.
5645*/
5646
5647# ifndef F_ULOCK
5648# define F_ULOCK 0 /* Unlock a previously locked region */
5649# endif
5650# ifndef F_LOCK
5651# define F_LOCK 1 /* Lock a region for exclusive use */
5652# endif
5653# ifndef F_TLOCK
5654# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5655# endif
5656# ifndef F_TEST
5657# define F_TEST 3 /* Test a region for other processes locks */
5658# endif
5659
cea2e8a9
GS		 5660static int
5661lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5662{
5663 int i;
84902520
TB		 5664 int save_errno;
5665 Off_t pos;
5666
5667 /* flock locks entire file so for lockf we need to do the same */
5668 save_errno = errno;
6ad3d225 5669 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5670 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5671 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5672 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5673 errno = save_errno;
5674
16d20bd9
AD		 5675 switch (operation) {
5676
5677 /* LOCK_SH - get a shared lock */
5678 case LOCK_SH:
5679 /* LOCK_EX - get an exclusive lock */
5680 case LOCK_EX:
5681 i = lockf (fd, F_LOCK, 0);
5682 break;
5683
5684 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5685 case LOCK_SH|LOCK_NB:
5686 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5687 case LOCK_EX|LOCK_NB:
5688 i = lockf (fd, F_TLOCK, 0);
5689 if (i == -1)
5690 if ((errno == EAGAIN) || (errno == EACCES))
5691 errno = EWOULDBLOCK;
5692 break;
5693
ff68c719 5694 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5695 case LOCK_UN:
ff68c719 5696 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5697 i = lockf (fd, F_ULOCK, 0);
5698 break;
5699
5700 /* Default - can't decipher operation */
5701 default:
5702 i = -1;
5703 errno = EINVAL;
5704 break;
5705 }
84902520
TB		 5706
5707 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5708 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5709
16d20bd9
AD		 5710 return (i);
5711}
ff68c719 5712
5713#endif /* LOCKF_EMULATE_FLOCK */
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