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[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4c79ee7a 3 * Copyright (c) 1991-2003, 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;
a0d0e21e 765
e336de0d 766 varsv = *++MARK;
6b05c17a
NIS		 767 switch(SvTYPE(varsv)) {
768 case SVt_PVHV:
769 methname = "TIEHASH";
03c6e78a 770 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 771 break;
772 case SVt_PVAV:
773 methname = "TIEARRAY";
774 break;
775 case SVt_PVGV:
7fb37951
AMS		 776#ifdef GV_UNIQUE_CHECK
777 if (GvUNIQUE((GV*)varsv)) {
778 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 779 }
780#endif
6b05c17a 781 methname = "TIEHANDLE";
14befaf4 782 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 783 /* For tied filehandles, we apply tiedscalar magic to the IO
784 slot of the GP rather than the GV itself. AMS 20010812 */
785 if (!GvIOp(varsv))
786 GvIOp(varsv) = newIO();
787 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 788 break;
789 default:
790 methname = "TIESCALAR";
14befaf4 791 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 792 break;
793 }
e336de0d
GS		 794 items = SP - MARK++;
795 if (sv_isobject(*MARK)) {
6b05c17a 796 ENTER;
e788e7d3 797 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 798 PUSHMARK(SP);
eb160463 799 EXTEND(SP,(I32)items);
e336de0d
GS		 800 while (items--)
801 PUSHs(*MARK++);
802 PUTBACK;
864dbfa3 803 call_method(methname, G_SCALAR);
301e8125 804 }
6b05c17a 805 else {
864dbfa3 806 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 807 * perhaps to get different error message ?
808 */
e336de0d 809 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 810 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 811 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
812 methname, *MARK);
6b05c17a
NIS		 813 }
814 ENTER;
e788e7d3 815 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 816 PUSHMARK(SP);
eb160463 817 EXTEND(SP,(I32)items);
e336de0d
GS		 818 while (items--)
819 PUSHs(*MARK++);
820 PUTBACK;
864dbfa3 821 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 822 }
a0d0e21e
LW		 823 SPAGAIN;
824
825 sv = TOPs;
d3acc0f7 826 POPSTACK;
a0d0e21e 827 if (sv_isobject(sv)) {
33c27489 828 sv_unmagic(varsv, how);
ae21d580 829 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 830 if (varsv == SvRV(sv) &&
d87ebaca
YST		 831 (SvTYPE(varsv) == SVt_PVAV ||
832 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 833 Perl_croak(aTHX_
834 "Self-ties of arrays and hashes are not supported");
d87ebaca 835 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 836 }
837 LEAVE;
3280af22 838 SP = PL_stack_base + markoff;
a0d0e21e
LW		 839 PUSHs(sv);
840 RETURN;
841}
842
843PP(pp_untie)
844{
39644a26 845 dSP;
5b468f54 846 MAGIC *mg;
33c27489 847 SV *sv = POPs;
14befaf4
DM		 848 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
849 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 850
5b468f54
AMS		 851 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
852 RETPUSHYES;
853
854 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 855 SV *obj = SvRV(mg->mg_obj);
856 GV *gv;
857 CV *cv = NULL;
fa2b88e0
JS		 858 if (obj) {
859 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
860 isGV(gv) && (cv = GvCV(gv))) {
861 PUSHMARK(SP);
862 XPUSHs(SvTIED_obj((SV*)gv, mg));
863 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
864 PUTBACK;
865 ENTER;
866 call_sv((SV *)cv, G_VOID);
867 LEAVE;
868 SPAGAIN;
869 }
870 else if (ckWARN(WARN_UNTIE)) {
871 if (mg && SvREFCNT(obj) > 1)
9014280d 872 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 873 "untie attempted while %"UVuf" inner references still exist",
874 (UV)SvREFCNT(obj) - 1 ) ;
875 }
cbdc8872 876 }
fa2b88e0 877 sv_unmagic(sv, how) ;
cbdc8872 878 }
55497cff 879 RETPUSHYES;
a0d0e21e
LW		 880}
881
c07a80fd 882PP(pp_tied)
883{
39644a26 884 dSP;
5b468f54 885 MAGIC *mg;
33c27489 886 SV *sv = POPs;
14befaf4
DM		 887 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
888 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 889
890 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
891 RETPUSHUNDEF;
c07a80fd 892
155aba94 893 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 894 SV *osv = SvTIED_obj(sv, mg);
895 if (osv == mg->mg_obj)
896 osv = sv_mortalcopy(osv);
897 PUSHs(osv);
898 RETURN;
c07a80fd 899 }
c07a80fd 900 RETPUSHUNDEF;
901}
902
a0d0e21e
LW		 903PP(pp_dbmopen)
904{
39644a26 905 dSP;
a0d0e21e
LW		 906 HV *hv;
907 dPOPPOPssrl;
908 HV* stash;
909 GV *gv;
a0d0e21e
LW		 910 SV *sv;
911
912 hv = (HV*)POPs;
913
3280af22 914 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 915 sv_setpv(sv, "AnyDBM_File");
916 stash = gv_stashsv(sv, FALSE);
8ebc5c01 917 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 918 PUTBACK;
864dbfa3 919 require_pv("AnyDBM_File.pm");
a0d0e21e 920 SPAGAIN;
8ebc5c01 921 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 922 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 923 }
924
57d3b86d 925 ENTER;
924508f0 926 PUSHMARK(SP);
6b05c17a 927
924508f0 928 EXTEND(SP, 5);
a0d0e21e
LW		 929 PUSHs(sv);
930 PUSHs(left);
931 if (SvIV(right))
b448e4fe 932 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 933 else
b448e4fe 934 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 935 PUSHs(right);
57d3b86d 936 PUTBACK;
864dbfa3 937 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 938 SPAGAIN;
939
940 if (!sv_isobject(TOPs)) {
924508f0
GS		 941 SP--;
942 PUSHMARK(SP);
a0d0e21e
LW		 943 PUSHs(sv);
944 PUSHs(left);
b448e4fe 945 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 946 PUSHs(right);
a0d0e21e 947 PUTBACK;
864dbfa3 948 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 949 SPAGAIN;
950 }
951
6b05c17a 952 if (sv_isobject(TOPs)) {
14befaf4
DM		 953 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
954 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 955 }
a0d0e21e
LW		 956 LEAVE;
957 RETURN;
958}
959
960PP(pp_dbmclose)
961{
cea2e8a9 962 return pp_untie();
a0d0e21e
LW		 963}
964
965PP(pp_sselect)
966{
a0d0e21e 967#ifdef HAS_SELECT
9cad6237 968 dSP; dTARGET;
a0d0e21e
LW		 969 register I32 i;
970 register I32 j;
971 register char *s;
972 register SV *sv;
65202027 973 NV value;
a0d0e21e
LW		 974 I32 maxlen = 0;
975 I32 nfound;
976 struct timeval timebuf;
977 struct timeval *tbuf = &timebuf;
978 I32 growsize;
979 char *fd_sets[4];
2d8e6c8d 980 STRLEN n_a;
a0d0e21e
LW		 981#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
982 I32 masksize;
983 I32 offset;
984 I32 k;
985
986# if BYTEORDER & 0xf0000
987# define ORDERBYTE (0x88888888 - BYTEORDER)
988# else
989# define ORDERBYTE (0x4444 - BYTEORDER)
990# endif
991
992#endif
993
994 SP -= 4;
995 for (i = 1; i <= 3; i++) {
996 if (!SvPOK(SP[i]))
997 continue;
998 j = SvCUR(SP[i]);
999 if (maxlen < j)
1000 maxlen = j;
1001 }
1002
5ff3f7a4 1003/* little endians can use vecs directly */
e366b469 1004#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1005# ifdef NFDBITS
a0d0e21e 1006
5ff3f7a4
GS		 1007# ifndef NBBY
1008# define NBBY 8
1009# endif
a0d0e21e
LW		 1010
1011 masksize = NFDBITS / NBBY;
5ff3f7a4 1012# else
a0d0e21e 1013 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1014# endif
a0d0e21e
LW		 1015 Zero(&fd_sets[0], 4, char*);
1016#endif
1017
e366b469
PG		 1018# if SELECT_MIN_BITS > 1
1019 /* If SELECT_MIN_BITS is greater than one we most probably will want
1020 * to align the sizes with SELECT_MIN_BITS/8 because for example
1021 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1022 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1023 * on (sets/tests/clears bits) is 32 bits. */
1024 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1025# else
1026 growsize = sizeof(fd_set);
1027# endif
1028
a0d0e21e
LW		 1029 sv = SP[4];
1030 if (SvOK(sv)) {
1031 value = SvNV(sv);
1032 if (value < 0.0)
1033 value = 0.0;
1034 timebuf.tv_sec = (long)value;
65202027 1035 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1036 timebuf.tv_usec = (long)(value * 1000000.0);
1037 }
1038 else
1039 tbuf = Null(struct timeval*);
1040
1041 for (i = 1; i <= 3; i++) {
1042 sv = SP[i];
1043 if (!SvOK(sv)) {
1044 fd_sets[i] = 0;
1045 continue;
1046 }
1047 else if (!SvPOK(sv))
2d8e6c8d 1048 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1049 j = SvLEN(sv);
1050 if (j < growsize) {
1051 Sv_Grow(sv, growsize);
a0d0e21e 1052 }
c07a80fd 1053 j = SvCUR(sv);
1054 s = SvPVX(sv) + j;
1055 while (++j <= growsize) {
1056 *s++ = '\0';
1057 }
1058
a0d0e21e
LW		 1059#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1060 s = SvPVX(sv);
1061 New(403, fd_sets[i], growsize, char);
1062 for (offset = 0; offset < growsize; offset += masksize) {
1063 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1064 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1065 }
1066#else
1067 fd_sets[i] = SvPVX(sv);
1068#endif
1069 }
1070
6ad3d225 1071 nfound = PerlSock_select(
a0d0e21e
LW		 1072 maxlen * 8,
1073 (Select_fd_set_t) fd_sets[1],
1074 (Select_fd_set_t) fd_sets[2],
1075 (Select_fd_set_t) fd_sets[3],
4e80e7c5
JH		 1076#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1077 (void*) /* Workaround for a compiler bug. */
1078#endif
a0d0e21e
LW		 1079 tbuf);
1080 for (i = 1; i <= 3; i++) {
1081 if (fd_sets[i]) {
1082 sv = SP[i];
1083#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1084 s = SvPVX(sv);
1085 for (offset = 0; offset < growsize; offset += masksize) {
1086 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1087 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1088 }
1089 Safefree(fd_sets[i]);
1090#endif
1091 SvSETMAGIC(sv);
1092 }
1093 }
1094
1095 PUSHi(nfound);
1096 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1097 value = (NV)(timebuf.tv_sec) +
1098 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1099 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1100 sv_setnv(sv, value);
1101 }
1102 RETURN;
1103#else
cea2e8a9 1104 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1105#endif
1106}
1107
4633a7c4 1108void
864dbfa3 1109Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1110{
1111 if (gv)
1112 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1113 if (PL_defoutgv)
1114 SvREFCNT_dec(PL_defoutgv);
1115 PL_defoutgv = gv;
4633a7c4
LW		 1116}
1117
a0d0e21e
LW		 1118PP(pp_select)
1119{
39644a26 1120 dSP; dTARGET;
4633a7c4
LW		 1121 GV *newdefout, *egv;
1122 HV *hv;
1123
533c011a 1124 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1125
3280af22 1126 egv = GvEGV(PL_defoutgv);
4633a7c4 1127 if (!egv)
3280af22 1128 egv = PL_defoutgv;
4633a7c4
LW		 1129 hv = GvSTASH(egv);
1130 if (! hv)
3280af22 1131 XPUSHs(&PL_sv_undef);
4633a7c4 1132 else {
cbdc8872 1133 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1134 if (gvp && *gvp == egv) {
f7aaccc2 1135 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1136 XPUSHTARG;
1137 }
1138 else {
1139 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1140 }
4633a7c4
LW		 1141 }
1142
1143 if (newdefout) {
ded8aa31
GS		 1144 if (!GvIO(newdefout))
1145 gv_IOadd(newdefout);
4633a7c4
LW		 1146 setdefout(newdefout);
1147 }
1148
a0d0e21e
LW		 1149 RETURN;
1150}
1151
1152PP(pp_getc)
1153{
39644a26 1154 dSP; dTARGET;
a0d0e21e 1155 GV *gv;
90133b69 1156 IO *io = NULL;
2ae324a7 1157 MAGIC *mg;
a0d0e21e 1158
32da55ab 1159 if (MAXARG == 0)
3280af22 1160 gv = PL_stdingv;
a0d0e21e
LW		 1161 else
1162 gv = (GV*)POPs;
2ae324a7 1163
5b468f54
AMS		 1164 if (gv && (io = GvIO(gv))
1165 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1166 {
54310121 1167 I32 gimme = GIMME_V;
2ae324a7 1168 PUSHMARK(SP);
5b468f54 1169 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1170 PUTBACK;
1171 ENTER;
864dbfa3 1172 call_method("GETC", gimme);
2ae324a7 1173 LEAVE;
1174 SPAGAIN;
54310121 1175 if (gimme == G_SCALAR)
1176 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1177 RETURN;
1178 }
90133b69 1179 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1180 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1181 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1182 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1183 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1184 RETPUSHUNDEF;
90133b69 1185 }
bbce6d69 1186 TAINT;
a0d0e21e 1187 sv_setpv(TARG, " ");
9bc64814 1188 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1189 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1190 /* Find out how many bytes the char needs */
1191 Size_t len = UTF8SKIP(SvPVX(TARG));
1192 if (len > 1) {
1193 SvGROW(TARG,len+1);
1194 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1195 SvCUR_set(TARG,1+len);
1196 }
1197 SvUTF8_on(TARG);
1198 }
a0d0e21e
LW		 1199 PUSHTARG;
1200 RETURN;
1201}
1202
1203PP(pp_read)
1204{
cea2e8a9 1205 return pp_sysread();
a0d0e21e
LW		 1206}
1207
76e3520e 1208STATIC OP *
cea2e8a9 1209S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1210{
c09156bb 1211 register PERL_CONTEXT *cx;
54310121 1212 I32 gimme = GIMME_V;
a0d0e21e
LW		 1213
1214 ENTER;
1215 SAVETMPS;
1216
1217 push_return(retop);
146174a9 1218 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1219 PUSHFORMAT(cx);
dd2155a4 1220 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1221
4633a7c4 1222 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1223 return CvSTART(cv);
1224}
1225
1226PP(pp_enterwrite)
1227{
39644a26 1228 dSP;
a0d0e21e
LW		 1229 register GV *gv;
1230 register IO *io;
1231 GV *fgv;
1232 CV *cv;
1233
1234 if (MAXARG == 0)
3280af22 1235 gv = PL_defoutgv;
a0d0e21e
LW		 1236 else {
1237 gv = (GV*)POPs;
1238 if (!gv)
3280af22 1239 gv = PL_defoutgv;
a0d0e21e
LW		 1240 }
1241 EXTEND(SP, 1);
1242 io = GvIO(gv);
1243 if (!io) {
1244 RETPUSHNO;
1245 }
1246 if (IoFMT_GV(io))
1247 fgv = IoFMT_GV(io);
1248 else
1249 fgv = gv;
1250
1251 cv = GvFORM(fgv);
a0d0e21e 1252 if (!cv) {
2dd78f96 1253 char *name = NULL;
a0d0e21e 1254 if (fgv) {
748a9306 1255 SV *tmpsv = sv_newmortal();
43693395 1256 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1257 name = SvPV_nolen(tmpsv);
a0d0e21e 1258 }
2dd78f96
JH		 1259 if (name && *name)
1260 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1261 DIE(aTHX_ "Not a format reference");
a0d0e21e 1262 }
44a8e56a 1263 if (CvCLONE(cv))
1264 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1265
44a8e56a 1266 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1267 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1268}
1269
1270PP(pp_leavewrite)
1271{
39644a26 1272 dSP;
a0d0e21e
LW		 1273 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1274 register IO *io = GvIOp(gv);
760ac839
LW		 1275 PerlIO *ofp = IoOFP(io);
1276 PerlIO *fp;
a0d0e21e
LW		 1277 SV **newsp;
1278 I32 gimme;
c09156bb 1279 register PERL_CONTEXT *cx;
a0d0e21e 1280
760ac839 1281 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1282 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1283 if (!io || !ofp)
1284 goto forget_top;
3280af22
NIS		 1285 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1286 PL_formtarget != PL_toptarget)
a0d0e21e 1287 {
4633a7c4
LW		 1288 GV *fgv;
1289 CV *cv;
a0d0e21e
LW		 1290 if (!IoTOP_GV(io)) {
1291 GV *topgv;
46fc3d4c 1292 SV *topname;
a0d0e21e
LW		 1293
1294 if (!IoTOP_NAME(io)) {
1295 if (!IoFMT_NAME(io))
1296 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1297 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1298 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1299 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1300 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1301 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1302 else
1303 IoTOP_NAME(io) = savepv("top");
1304 }
1305 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1306 if (!topgv || !GvFORM(topgv)) {
1307 IoLINES_LEFT(io) = 100000000;
1308 goto forget_top;
1309 }
1310 IoTOP_GV(io) = topgv;
1311 }
748a9306
LW		 1312 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1313 I32 lines = IoLINES_LEFT(io);
3280af22 1314 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1315 if (lines <= 0) /* Yow, header didn't even fit!!! */
1316 goto forget_top;
748a9306
LW		 1317 while (lines-- > 0) {
1318 s = strchr(s, '\n');
1319 if (!s)
1320 break;
1321 s++;
1322 }
1323 if (s) {
d75029d0
NIS		 1324 STRLEN save = SvCUR(PL_formtarget);
1325 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1326 do_print(PL_formtarget, ofp);
1327 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1328 sv_chop(PL_formtarget, s);
1329 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1330 }
1331 }
a0d0e21e 1332 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1333 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1334 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1335 IoPAGE(io)++;
3280af22 1336 PL_formtarget = PL_toptarget;
748a9306 1337 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1338 fgv = IoTOP_GV(io);
1339 if (!fgv)
cea2e8a9 1340 DIE(aTHX_ "bad top format reference");
4633a7c4 1341 cv = GvFORM(fgv);
2dd78f96
JH		 1342 {
1343 char *name = NULL;
1344 if (!cv) {
1345 SV *sv = sv_newmortal();
1346 gv_efullname4(sv, fgv, Nullch, FALSE);
1347 name = SvPV_nolen(sv);
1348 }
1349 if (name && *name)
1350 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1351 /* why no:
1352 else
1353 DIE(aTHX_ "Undefined top format called");
1354 ?*/
4633a7c4 1355 }
44a8e56a 1356 if (CvCLONE(cv))
1357 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1358 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1359 }
1360
1361 forget_top:
3280af22 1362 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1363 POPFORMAT(cx);
1364 LEAVE;
1365
1366 fp = IoOFP(io);
1367 if (!fp) {
599cee73 1368 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1369 if (IoIFP(io))
1370 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1371 else if (ckWARN(WARN_CLOSED))
bc37a18f 1372 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1373 }
3280af22 1374 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1375 }
1376 else {
3280af22 1377 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1378 if (ckWARN(WARN_IO))
9014280d 1379 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1380 }
d75029d0 1381 if (!do_print(PL_formtarget, fp))
3280af22 1382 PUSHs(&PL_sv_no);
a0d0e21e 1383 else {
3280af22
NIS		 1384 FmLINES(PL_formtarget) = 0;
1385 SvCUR_set(PL_formtarget, 0);
1386 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1387 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1388 (void)PerlIO_flush(fp);
3280af22 1389 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1390 }
1391 }
9cbac4c7 1392 /* bad_ofp: */
3280af22 1393 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1394 PUTBACK;
1395 return pop_return();
1396}
1397
1398PP(pp_prtf)
1399{
39644a26 1400 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1401 GV *gv;
1402 IO *io;
760ac839 1403 PerlIO *fp;
26db47c4 1404 SV *sv;
46fc3d4c 1405 MAGIC *mg;
a0d0e21e 1406
533c011a 1407 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1408 gv = (GV*)*++MARK;
1409 else
3280af22 1410 gv = PL_defoutgv;
46fc3d4c 1411
5b468f54
AMS		 1412 if (gv && (io = GvIO(gv))
1413 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1414 {
46fc3d4c 1415 if (MARK == ORIGMARK) {
4352c267 1416 MEXTEND(SP, 1);
46fc3d4c 1417 ++MARK;
1418 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1419 ++SP;
1420 }
1421 PUSHMARK(MARK - 1);
5b468f54 1422 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1423 PUTBACK;
1424 ENTER;
864dbfa3 1425 call_method("PRINTF", G_SCALAR);
46fc3d4c 1426 LEAVE;
1427 SPAGAIN;
1428 MARK = ORIGMARK + 1;
1429 *MARK = *SP;
1430 SP = MARK;
1431 RETURN;
1432 }
1433
26db47c4 1434 sv = NEWSV(0,0);
a0d0e21e 1435 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1436 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1437 report_evil_fh(gv, io, PL_op->op_type);
93189314 1438 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1439 goto just_say_no;
1440 }
1441 else if (!(fp = IoOFP(io))) {
599cee73 1442 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1443 if (IoIFP(io))
1444 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1445 else if (ckWARN(WARN_CLOSED))
bc37a18f 1446 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1447 }
93189314 1448 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1449 goto just_say_no;
1450 }
1451 else {
1452 do_sprintf(sv, SP - MARK, MARK + 1);
1453 if (!do_print(sv, fp))
1454 goto just_say_no;
1455
1456 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1457 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1458 goto just_say_no;
1459 }
1460 SvREFCNT_dec(sv);
1461 SP = ORIGMARK;
3280af22 1462 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1463 RETURN;
1464
1465 just_say_no:
1466 SvREFCNT_dec(sv);
1467 SP = ORIGMARK;
3280af22 1468 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1469 RETURN;
1470}
1471
c07a80fd 1472PP(pp_sysopen)
1473{
39644a26 1474 dSP;
c07a80fd 1475 GV *gv;
c07a80fd 1476 SV *sv;
1477 char *tmps;
1478 STRLEN len;
1479 int mode, perm;
1480
1481 if (MAXARG > 3)
1482 perm = POPi;
1483 else
1484 perm = 0666;
1485 mode = POPi;
1486 sv = POPs;
1487 gv = (GV *)POPs;
1488
4592e6ca
NIS		 1489 /* Need TIEHANDLE method ? */
1490
c07a80fd 1491 tmps = SvPV(sv, len);
1492 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1493 IoLINES(GvIOp(gv)) = 0;
3280af22 1494 PUSHs(&PL_sv_yes);
c07a80fd 1495 }
1496 else {
3280af22 1497 PUSHs(&PL_sv_undef);
c07a80fd 1498 }
1499 RETURN;
1500}
1501
a0d0e21e
LW		 1502PP(pp_sysread)
1503{
39644a26 1504 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1505 int offset;
1506 GV *gv;
1507 IO *io;
1508 char *buffer;
5b54f415 1509 SSize_t length;
eb5c063a 1510 SSize_t count;
1e422769 1511 Sock_size_t bufsize;
748a9306 1512 SV *bufsv;
a0d0e21e 1513 STRLEN blen;
2ae324a7 1514 MAGIC *mg;
eb5c063a
NIS		 1515 int fp_utf8;
1516 Size_t got = 0;
1517 Size_t wanted;
1d636c13 1518 bool charstart = FALSE;
87330c3c
JH		 1519 STRLEN charskip = 0;
1520 STRLEN skip = 0;
a0d0e21e
LW		 1521
1522 gv = (GV*)*++MARK;
5b468f54
AMS		 1523 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1524 && gv && (io = GvIO(gv))
1525 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1526 {
2ae324a7 1527 SV *sv;
1528
1529 PUSHMARK(MARK-1);
5b468f54 1530 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1531 ENTER;
864dbfa3 1532 call_method("READ", G_SCALAR);
2ae324a7 1533 LEAVE;
1534 SPAGAIN;
1535 sv = POPs;
1536 SP = ORIGMARK;
1537 PUSHs(sv);
1538 RETURN;
1539 }
1540
a0d0e21e
LW		 1541 if (!gv)
1542 goto say_undef;
748a9306 1543 bufsv = *++MARK;
ff68c719 1544 if (! SvOK(bufsv))
1545 sv_setpvn(bufsv, "", 0);
a0d0e21e 1546 length = SvIVx(*++MARK);
748a9306 1547 SETERRNO(0,0);
a0d0e21e
LW		 1548 if (MARK < SP)
1549 offset = SvIVx(*++MARK);
1550 else
1551 offset = 0;
1552 io = GvIO(gv);
b5fe5ca2
SR		 1553 if (!io || !IoIFP(io)) {
1554 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1555 report_evil_fh(gv, io, PL_op->op_type);
1556 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1557 goto say_undef;
b5fe5ca2 1558 }
0064a8a9 1559 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1560 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1561 /* UTF8 may not have been set if they are all low bytes */
1562 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1563 }
1564 else {
1565 buffer = SvPV_force(bufsv, blen);
1566 }
1567 if (length < 0)
1568 DIE(aTHX_ "Negative length");
eb5c063a 1569 wanted = length;
7d59b7e4 1570
d0965105
JH		 1571 charstart = TRUE;
1572 charskip = 0;
87330c3c 1573 skip = 0;
d0965105 1574
a0d0e21e 1575#ifdef HAS_SOCKET
533c011a 1576 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1577 char namebuf[MAXPATHLEN];
17a8c7ba 1578#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1579 bufsize = sizeof (struct sockaddr_in);
1580#else
46fc3d4c 1581 bufsize = sizeof namebuf;
490ab354 1582#endif
abf95952
IZ		 1583#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1584 if (bufsize >= 256)
1585 bufsize = 255;
1586#endif
eb160463 1587 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1588 /* 'offset' means 'flags' here */
eb5c063a 1589 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1590 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1591 if (count < 0)
a0d0e21e 1592 RETPUSHUNDEF;
4107cc59
OF		 1593#ifdef EPOC
1594 /* Bogus return without padding */
1595 bufsize = sizeof (struct sockaddr_in);
1596#endif
eb5c063a 1597 SvCUR_set(bufsv, count);
748a9306
LW		 1598 *SvEND(bufsv) = '\0';
1599 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1600 if (fp_utf8)
1601 SvUTF8_on(bufsv);
748a9306 1602 SvSETMAGIC(bufsv);
aac0dd9a 1603 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1604 if (!(IoFLAGS(io) & IOf_UNTAINT))
1605 SvTAINTED_on(bufsv);
a0d0e21e 1606 SP = ORIGMARK;
46fc3d4c 1607 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1608 PUSHs(TARG);
1609 RETURN;
1610 }
1611#else
911d147d 1612 if (PL_op->op_type == OP_RECV)
cea2e8a9 1613 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1614#endif
eb5c063a
NIS		 1615 if (DO_UTF8(bufsv)) {
1616 /* offset adjust in characters not bytes */
1617 blen = sv_len_utf8(bufsv);
7d59b7e4 1618 }
bbce6d69 1619 if (offset < 0) {
eb160463 1620 if (-offset > (int)blen)
cea2e8a9 1621 DIE(aTHX_ "Offset outside string");
bbce6d69 1622 offset += blen;
1623 }
eb5c063a
NIS		 1624 if (DO_UTF8(bufsv)) {
1625 /* convert offset-as-chars to offset-as-bytes */
1626 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1627 }
1628 more_bytes:
cd52b7b2 1629 bufsize = SvCUR(bufsv);
eb160463 1630 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1631 if (offset > bufsize) { /* Zero any newly allocated space */
1632 Zero(buffer+bufsize, offset-bufsize, char);
1633 }
eb5c063a
NIS		 1634 buffer = buffer + offset;
1635
533c011a 1636 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1637#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1638 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1639 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1640 buffer, length, 0);
a7092146
GS		 1641 }
1642 else
1643#endif
1644 {
eb5c063a
NIS		 1645 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1646 buffer, length);
a7092146 1647 }
a0d0e21e
LW		 1648 }
1649 else
1650#ifdef HAS_SOCKET__bad_code_maybe
50952442 1651 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1652 char namebuf[MAXPATHLEN];
490ab354
JH		 1653#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1654 bufsize = sizeof (struct sockaddr_in);
1655#else
46fc3d4c 1656 bufsize = sizeof namebuf;
490ab354 1657#endif
eb5c063a 1658 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1659 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1660 }
1661 else
1662#endif
3b02c43c 1663 {
eb5c063a
NIS		 1664 count = PerlIO_read(IoIFP(io), buffer, length);
1665 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1666 if (count == 0 && PerlIO_error(IoIFP(io)))
1667 count = -1;
3b02c43c 1668 }
eb5c063a 1669 if (count < 0) {
a00b5bd3 1670 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1671 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1672 goto say_undef;
af8c498a 1673 }
eb5c063a 1674 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1675 *SvEND(bufsv) = '\0';
1676 (void)SvPOK_only(bufsv);
0064a8a9 1677 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1678 /* Look at utf8 we got back and count the characters */
1679 char *bend = buffer + count;
1680 while (buffer < bend) {
d0965105
JH		 1681 if (charstart) {
1682 skip = UTF8SKIP(buffer);
1683 charskip = 0;
1684 }
1685 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1686 /* partial character - try for rest of it */
1687 length = skip - (bend-buffer);
1688 offset = bend - SvPVX(bufsv);
d0965105
JH		 1689 charstart = FALSE;
1690 charskip += count;
eb5c063a
NIS		 1691 goto more_bytes;
1692 }
1693 else {
1694 got++;
1695 buffer += skip;
d0965105
JH		 1696 charstart = TRUE;
1697 charskip = 0;
eb5c063a
NIS		 1698 }
1699 }
1700 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1701 provided amount read (count) was what was requested (length)
1702 */
1703 if (got < wanted && count == length) {
d0965105 1704 length = wanted - got;
eb5c063a
NIS		 1705 offset = bend - SvPVX(bufsv);
1706 goto more_bytes;
1707 }
1708 /* return value is character count */
1709 count = got;
1710 SvUTF8_on(bufsv);
1711 }
748a9306 1712 SvSETMAGIC(bufsv);
aac0dd9a 1713 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1714 if (!(IoFLAGS(io) & IOf_UNTAINT))
1715 SvTAINTED_on(bufsv);
a0d0e21e 1716 SP = ORIGMARK;
eb5c063a 1717 PUSHi(count);
a0d0e21e
LW		 1718 RETURN;
1719
1720 say_undef:
1721 SP = ORIGMARK;
1722 RETPUSHUNDEF;
1723}
1724
1725PP(pp_syswrite)
1726{
39644a26 1727 dSP;
092bebab
JH		 1728 int items = (SP - PL_stack_base) - TOPMARK;
1729 if (items == 2) {
9f089d78 1730 SV *sv;
092bebab 1731 EXTEND(SP, 1);
9f089d78
SB		 1732 sv = sv_2mortal(newSViv(sv_len(*SP)));
1733 PUSHs(sv);
092bebab
JH		 1734 PUTBACK;
1735 }
cea2e8a9 1736 return pp_send();
a0d0e21e
LW		 1737}
1738
1739PP(pp_send)
1740{
39644a26 1741 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1742 GV *gv;
1743 IO *io;
748a9306 1744 SV *bufsv;
a0d0e21e 1745 char *buffer;
8c99d73e
GS		 1746 Size_t length;
1747 SSize_t retval;
a0d0e21e 1748 STRLEN blen;
1d603a67 1749 MAGIC *mg;
a0d0e21e
LW		 1750
1751 gv = (GV*)*++MARK;
14befaf4 1752 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1753 && gv && (io = GvIO(gv))
1754 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1755 {
1d603a67
GB		 1756 SV *sv;
1757
1758 PUSHMARK(MARK-1);
5b468f54 1759 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1760 ENTER;
864dbfa3 1761 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1762 LEAVE;
1763 SPAGAIN;
1764 sv = POPs;
1765 SP = ORIGMARK;
1766 PUSHs(sv);
1767 RETURN;
1768 }
a0d0e21e
LW		 1769 if (!gv)
1770 goto say_undef;
748a9306 1771 bufsv = *++MARK;
8c99d73e 1772#if Size_t_size > IVSIZE
3c001241 1773 length = (Size_t)SvNVx(*++MARK);
146174a9 1774#else
3c001241 1775 length = (Size_t)SvIVx(*++MARK);
146174a9 1776#endif
3c001241 1777 if ((SSize_t)length < 0)
cea2e8a9 1778 DIE(aTHX_ "Negative length");
748a9306 1779 SETERRNO(0,0);
a0d0e21e
LW		 1780 io = GvIO(gv);
1781 if (!io || !IoIFP(io)) {
8c99d73e 1782 retval = -1;
bc37a18f
RG		 1783 if (ckWARN(WARN_CLOSED))
1784 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1785 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1786 goto say_undef;
1787 }
1788
1789 if (PerlIO_isutf8(IoIFP(io))) {
1790 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1791 }
7d59b7e4
NIS		 1792 else {
1793 if (DO_UTF8(bufsv))
1794 sv_utf8_downgrade(bufsv, FALSE);
1795 buffer = SvPV(bufsv, blen);
1796 }
1797
1798 if (PL_op->op_type == OP_SYSWRITE) {
1799 IV offset;
1800 if (DO_UTF8(bufsv)) {
1801 /* length and offset are in chars */
1802 blen = sv_len_utf8(bufsv);
1803 }
bbce6d69 1804 if (MARK < SP) {
a0d0e21e 1805 offset = SvIVx(*++MARK);
bbce6d69 1806 if (offset < 0) {
eb160463 1807 if (-offset > (IV)blen)
cea2e8a9 1808 DIE(aTHX_ "Offset outside string");
bbce6d69 1809 offset += blen;
eb160463 1810 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1811 DIE(aTHX_ "Offset outside string");
bbce6d69 1812 } else
a0d0e21e
LW		 1813 offset = 0;
1814 if (length > blen - offset)
1815 length = blen - offset;
7d59b7e4 1816 if (DO_UTF8(bufsv)) {
c8d31a35 1817 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1818 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1819 }
1820 else {
1821 buffer = buffer+offset;
1822 }
a7092146 1823#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1824 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1825 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1826 buffer, length, 0);
a7092146
GS		 1827 }
1828 else
1829#endif
1830 {
94e4c244 1831 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1832 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1833 buffer, length);
a7092146 1834 }
a0d0e21e
LW		 1835 }
1836#ifdef HAS_SOCKET
1837 else if (SP > MARK) {
1838 char *sockbuf;
1839 STRLEN mlen;
1840 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1841 /* length is really flags */
8c99d73e
GS		 1842 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1843 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1844 }
1845 else
7d59b7e4 1846 /* length is really flags */
8c99d73e 1847 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1848#else
1849 else
cea2e8a9 1850 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1851#endif
8c99d73e 1852 if (retval < 0)
a0d0e21e
LW		 1853 goto say_undef;
1854 SP = ORIGMARK;
f36eea10
JH		 1855 if (DO_UTF8(bufsv))
1856 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1857#if Size_t_size > IVSIZE
1858 PUSHn(retval);
1859#else
1860 PUSHi(retval);
1861#endif
a0d0e21e
LW		 1862 RETURN;
1863
1864 say_undef:
1865 SP = ORIGMARK;
1866 RETPUSHUNDEF;
1867}
1868
1869PP(pp_recv)
1870{
cea2e8a9 1871 return pp_sysread();
a0d0e21e
LW		 1872}
1873
1874PP(pp_eof)
1875{
39644a26 1876 dSP;
a0d0e21e 1877 GV *gv;
5b468f54 1878 IO *io;
4592e6ca 1879 MAGIC *mg;
a0d0e21e 1880
32da55ab 1881 if (MAXARG == 0) {
146174a9
CB		 1882 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1883 IO *io;
ed2c6b9b 1884 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1885 io = GvIO(gv);
1886 if (io && !IoIFP(io)) {
1887 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1888 IoLINES(io) = 0;
1889 IoFLAGS(io) &= ~IOf_START;
1890 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1891 sv_setpvn(GvSV(gv), "-", 1);
1892 SvSETMAGIC(GvSV(gv));
1893 }
1894 else if (!nextargv(gv))
1895 RETPUSHYES;
1896 }
1897 }
1898 else
1899 gv = PL_last_in_gv; /* eof */
1900 }
a0d0e21e 1901 else
146174a9 1902 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1903
5b468f54
AMS		 1904 if (gv && (io = GvIO(gv))
1905 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1906 {
4592e6ca 1907 PUSHMARK(SP);
5b468f54 1908 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1909 PUTBACK;
1910 ENTER;
864dbfa3 1911 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1912 LEAVE;
1913 SPAGAIN;
1914 RETURN;
1915 }
1916
54310121 1917 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1918 RETURN;
1919}
1920
1921PP(pp_tell)
1922{
39644a26 1923 dSP; dTARGET;
301e8125 1924 GV *gv;
5b468f54 1925 IO *io;
4592e6ca 1926 MAGIC *mg;
a0d0e21e 1927
32da55ab 1928 if (MAXARG == 0)
3280af22 1929 gv = PL_last_in_gv;
a0d0e21e 1930 else
3280af22 1931 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1932
5b468f54
AMS		 1933 if (gv && (io = GvIO(gv))
1934 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1935 {
4592e6ca 1936 PUSHMARK(SP);
5b468f54 1937 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1938 PUTBACK;
1939 ENTER;
864dbfa3 1940 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1941 LEAVE;
1942 SPAGAIN;
1943 RETURN;
1944 }
1945
146174a9
CB		 1946#if LSEEKSIZE > IVSIZE
1947 PUSHn( do_tell(gv) );
1948#else
a0d0e21e 1949 PUSHi( do_tell(gv) );
146174a9 1950#endif
a0d0e21e
LW		 1951 RETURN;
1952}
1953
1954PP(pp_seek)
1955{
cea2e8a9 1956 return pp_sysseek();
137443ea 1957}
1958
1959PP(pp_sysseek)
1960{
39644a26 1961 dSP;
a0d0e21e 1962 GV *gv;
5b468f54 1963 IO *io;
a0d0e21e 1964 int whence = POPi;
146174a9
CB		 1965#if LSEEKSIZE > IVSIZE
1966 Off_t offset = (Off_t)SvNVx(POPs);
1967#else
d9b3e12d 1968 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1969#endif
4592e6ca 1970 MAGIC *mg;
a0d0e21e 1971
3280af22 1972 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1973
5b468f54
AMS		 1974 if (gv && (io = GvIO(gv))
1975 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1976 {
4592e6ca 1977 PUSHMARK(SP);
5b468f54 1978 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 1979#if LSEEKSIZE > IVSIZE
1980 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1981#else
b448e4fe 1982 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1983#endif
b448e4fe 1984 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1985 PUTBACK;
1986 ENTER;
864dbfa3 1987 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1988 LEAVE;
1989 SPAGAIN;
1990 RETURN;
1991 }
1992
533c011a 1993 if (PL_op->op_type == OP_SEEK)
8903cb82 1994 PUSHs(boolSV(do_seek(gv, offset, whence)));
1995 else {
b448e4fe
JH		 1996 Off_t sought = do_sysseek(gv, offset, whence);
1997 if (sought < 0)
146174a9
CB		 1998 PUSHs(&PL_sv_undef);
1999 else {
b448e4fe 2000 SV* sv = sought ?
146174a9 2001#if LSEEKSIZE > IVSIZE
b448e4fe 2002 newSVnv((NV)sought)
146174a9 2003#else
b448e4fe 2004 newSViv(sought)
146174a9
CB		 2005#endif
2006 : newSVpvn(zero_but_true, ZBTLEN);
2007 PUSHs(sv_2mortal(sv));
2008 }
8903cb82 2009 }
a0d0e21e
LW		 2010 RETURN;
2011}
2012
2013PP(pp_truncate)
2014{
39644a26 2015 dSP;
8c99d73e
GS		 2016 /* There seems to be no consensus on the length type of truncate()
2017 * and ftruncate(), both off_t and size_t have supporters. In
2018 * general one would think that when using large files, off_t is
2019 * at least as wide as size_t, so using an off_t should be okay. */
2020 /* XXX Configure probe for the length type of *truncate() needed XXX */
2021 Off_t len;
a0d0e21e 2022
25342a55 2023#if Off_t_size > IVSIZE
8c99d73e
GS		 2024 len = (Off_t)POPn;
2025#else
2026 len = (Off_t)POPi;
2027#endif
2028 /* Checking for length < 0 is problematic as the type might or
301e8125 2029 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2030 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2031 SETERRNO(0,0);
5d94fbed 2032#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2033 {
2034 STRLEN n_a;
2035 int result = 1;
2036 GV *tmpgv;
090bf15b
SR		 2037 IO *io;
2038
d05c1ba0
JH		 2039 if (PL_op->op_flags & OPf_SPECIAL) {
2040 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2041
090bf15b
SR		 2042 do_ftruncate_gv:
2043 if (!GvIO(tmpgv))
2044 result = 0;
d05c1ba0 2045 else {
090bf15b
SR		 2046 PerlIO *fp;
2047 io = GvIOp(tmpgv);
2048 do_ftruncate_io:
2049 TAINT_PROPER("truncate");
2050 if (!(fp = IoIFP(io))) {
2051 result = 0;
2052 }
2053 else {
2054 PerlIO_flush(fp);
cbdc8872 2055#ifdef HAS_TRUNCATE
090bf15b 2056 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2057#else
090bf15b 2058 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2059#endif
090bf15b
SR		 2060 result = 0;
2061 }
d05c1ba0 2062 }
cbdc8872 2063 }
d05c1ba0
JH		 2064 else {
2065 SV *sv = POPs;
2066 char *name;
72f496dc 2067
d05c1ba0
JH		 2068 if (SvTYPE(sv) == SVt_PVGV) {
2069 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2070 goto do_ftruncate_gv;
d05c1ba0
JH		 2071 }
2072 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2073 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2074 goto do_ftruncate_gv;
2075 }
2076 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2077 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2078 goto do_ftruncate_io;
d05c1ba0 2079 }
1e422769 2080
d05c1ba0
JH		 2081 name = SvPV(sv, n_a);
2082 TAINT_PROPER("truncate");
cbdc8872 2083#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2084 if (truncate(name, len) < 0)
2085 result = 0;
cbdc8872 2086#else
d05c1ba0
JH		 2087 {
2088 int tmpfd;
2089
2090 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2091 result = 0;
d05c1ba0
JH		 2092 else {
2093 if (my_chsize(tmpfd, len) < 0)
2094 result = 0;
2095 PerlLIO_close(tmpfd);
2096 }
cbdc8872 2097 }
a0d0e21e 2098#endif
d05c1ba0 2099 }
a0d0e21e 2100
d05c1ba0
JH		 2101 if (result)
2102 RETPUSHYES;
2103 if (!errno)
93189314 2104 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2105 RETPUSHUNDEF;
2106 }
a0d0e21e 2107#else
cea2e8a9 2108 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2109#endif
2110}
2111
2112PP(pp_fcntl)
2113{
cea2e8a9 2114 return pp_ioctl();
a0d0e21e
LW		 2115}
2116
2117PP(pp_ioctl)
2118{
39644a26 2119 dSP; dTARGET;
748a9306 2120 SV *argsv = POPs;
3bb7c1b4 2121 unsigned int func = POPu;
533c011a 2122 int optype = PL_op->op_type;
a0d0e21e 2123 char *s;
324aa91a 2124 IV retval;
a0d0e21e 2125 GV *gv = (GV*)POPs;
c289d2f7 2126 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2127
748a9306 2128 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2129 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2130 report_evil_fh(gv, io, PL_op->op_type);
93189314 2131 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2132 RETPUSHUNDEF;
2133 }
2134
748a9306 2135 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2136 STRLEN len;
324aa91a 2137 STRLEN need;
748a9306 2138 s = SvPV_force(argsv, len);
324aa91a
HF		 2139 need = IOCPARM_LEN(func);
2140 if (len < need) {
2141 s = Sv_Grow(argsv, need + 1);
2142 SvCUR_set(argsv, need);
a0d0e21e
LW		 2143 }
2144
748a9306 2145 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2146 }
2147 else {
748a9306 2148 retval = SvIV(argsv);
c529f79d 2149 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2150 }
2151
2152 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2153
2154 if (optype == OP_IOCTL)
2155#ifdef HAS_IOCTL
76e3520e 2156 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2157#else
cea2e8a9 2158 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2159#endif
2160 else
c214f4ad
WB		 2161#ifndef HAS_FCNTL
2162 DIE(aTHX_ "fcntl is not implemented");
2163#else
55497cff 2164#if defined(OS2) && defined(__EMX__)
760ac839 2165 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2166#else
760ac839 2167 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2168#endif
a0d0e21e 2169
748a9306
LW		 2170 if (SvPOK(argsv)) {
2171 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2172 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2173 OP_NAME(PL_op));
748a9306
LW		 2174 s[SvCUR(argsv)] = 0; /* put our null back */
2175 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2176 }
2177
2178 if (retval == -1)
2179 RETPUSHUNDEF;
2180 if (retval != 0) {
2181 PUSHi(retval);
2182 }
2183 else {
8903cb82 2184 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2185 }
4808266b 2186#endif
c214f4ad 2187 RETURN;
a0d0e21e
LW		 2188}
2189
2190PP(pp_flock)
2191{
9cad6237 2192#ifdef FLOCK
39644a26 2193 dSP; dTARGET;
a0d0e21e
LW		 2194 I32 value;
2195 int argtype;
2196 GV *gv;
bc37a18f 2197 IO *io = NULL;
760ac839 2198 PerlIO *fp;
16d20bd9 2199
a0d0e21e 2200 argtype = POPi;
32da55ab 2201 if (MAXARG == 0)
3280af22 2202 gv = PL_last_in_gv;
a0d0e21e
LW		 2203 else
2204 gv = (GV*)POPs;
bc37a18f
RG		 2205 if (gv && (io = GvIO(gv)))
2206 fp = IoIFP(io);
2207 else {
a0d0e21e 2208 fp = Nullfp;
bc37a18f
RG		 2209 io = NULL;
2210 }
a0d0e21e 2211 if (fp) {
68dc0745 2212 (void)PerlIO_flush(fp);
76e3520e 2213 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2214 }
cb50131a 2215 else {
bc37a18f
RG		 2216 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2217 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2218 value = 0;
93189314 2219 SETERRNO(EBADF,RMS_IFI);
cb50131a 2220 }
a0d0e21e
LW		 2221 PUSHi(value);
2222 RETURN;
2223#else
cea2e8a9 2224 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2225#endif
2226}
2227
2228/* Sockets. */
2229
2230PP(pp_socket)
2231{
a0d0e21e 2232#ifdef HAS_SOCKET
9cad6237 2233 dSP;
a0d0e21e
LW		 2234 GV *gv;
2235 register IO *io;
2236 int protocol = POPi;
2237 int type = POPi;
2238 int domain = POPi;
2239 int fd;
2240
2241 gv = (GV*)POPs;
c289d2f7 2242 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2243
c289d2f7
JH		 2244 if (!gv || !io) {
2245 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2246 report_evil_fh(gv, io, PL_op->op_type);
2247 if (IoIFP(io))
2248 do_close(gv, FALSE);
93189314 2249 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2250 RETPUSHUNDEF;
2251 }
2252
57171420
BS		 2253 if (IoIFP(io))
2254 do_close(gv, FALSE);
2255
a0d0e21e 2256 TAINT_PROPER("socket");
6ad3d225 2257 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2258 if (fd < 0)
2259 RETPUSHUNDEF;
479b2847
GS		 2260 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2261 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2262 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2263 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2264 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2265 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2266 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2267 RETPUSHUNDEF;
2268 }
8d2a6795
GS		 2269#if defined(HAS_FCNTL) && defined(F_SETFD)
2270 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2271#endif
a0d0e21e 2272
d5ff79b3
OF		 2273#ifdef EPOC
2274 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2275#endif
2276
a0d0e21e
LW		 2277 RETPUSHYES;
2278#else
cea2e8a9 2279 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2280#endif
2281}
2282
2283PP(pp_sockpair)
2284{
c95c94b1 2285#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2286 dSP;
a0d0e21e
LW		 2287 GV *gv1;
2288 GV *gv2;
2289 register IO *io1;
2290 register IO *io2;
2291 int protocol = POPi;
2292 int type = POPi;
2293 int domain = POPi;
2294 int fd[2];
2295
2296 gv2 = (GV*)POPs;
2297 gv1 = (GV*)POPs;
c289d2f7
JH		 2298 io1 = gv1 ? GvIOn(gv1) : NULL;
2299 io2 = gv2 ? GvIOn(gv2) : NULL;
2300 if (!gv1 || !gv2 || !io1 || !io2) {
2301 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2302 if (!gv1 || !io1)
2303 report_evil_fh(gv1, io1, PL_op->op_type);
2304 if (!gv2 || !io2)
2305 report_evil_fh(gv1, io2, PL_op->op_type);
2306 }
2307 if (IoIFP(io1))
2308 do_close(gv1, FALSE);
2309 if (IoIFP(io2))
2310 do_close(gv2, FALSE);
a0d0e21e 2311 RETPUSHUNDEF;
c289d2f7 2312 }
a0d0e21e 2313
dc0d0a5f
JH		 2314 if (IoIFP(io1))
2315 do_close(gv1, FALSE);
2316 if (IoIFP(io2))
2317 do_close(gv2, FALSE);
57171420 2318
a0d0e21e 2319 TAINT_PROPER("socketpair");
6ad3d225 2320 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2321 RETPUSHUNDEF;
479b2847
GS		 2322 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2323 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
50952442 2324 IoTYPE(io1) = IoTYPE_SOCKET;
479b2847
GS		 2325 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2326 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
50952442 2327 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2328 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2329 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2330 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2331 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2332 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2333 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2334 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2335 RETPUSHUNDEF;
2336 }
8d2a6795
GS		 2337#if defined(HAS_FCNTL) && defined(F_SETFD)
2338 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2339 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2340#endif
a0d0e21e
LW		 2341
2342 RETPUSHYES;
2343#else
cea2e8a9 2344 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2345#endif
2346}
2347
2348PP(pp_bind)
2349{
a0d0e21e 2350#ifdef HAS_SOCKET
9cad6237 2351 dSP;
eec2d3df 2352#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2353 extern void GETPRIVMODE();
2354 extern void GETUSERMODE();
eec2d3df 2355#endif
748a9306 2356 SV *addrsv = POPs;
a0d0e21e
LW		 2357 char *addr;
2358 GV *gv = (GV*)POPs;
2359 register IO *io = GvIOn(gv);
2360 STRLEN len;
eec2d3df
GS		 2361 int bind_ok = 0;
2362#ifdef MPE
2363 int mpeprivmode = 0;
2364#endif
a0d0e21e
LW		 2365
2366 if (!io || !IoIFP(io))
2367 goto nuts;
2368
748a9306 2369 addr = SvPV(addrsv, len);
a0d0e21e 2370 TAINT_PROPER("bind");
eec2d3df
GS		 2371#ifdef MPE /* Deal with MPE bind() peculiarities */
2372 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2373 /* The address *MUST* stupidly be zero. */
2374 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2375 /* PRIV mode is required to bind() to ports < 1024. */
2376 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2377 ((struct sockaddr_in *)addr)->sin_port > 0) {
2378 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2379 mpeprivmode = 1;
2380 }
2381 }
2382#endif /* MPE */
2383 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2384 (struct sockaddr *)addr, len) >= 0)
2385 bind_ok = 1;
2386
2387#ifdef MPE /* Switch back to USER mode */
2388 if (mpeprivmode)
2389 GETUSERMODE();
2390#endif /* MPE */
2391
2392 if (bind_ok)
a0d0e21e
LW		 2393 RETPUSHYES;
2394 else
2395 RETPUSHUNDEF;
2396
2397nuts:
599cee73 2398 if (ckWARN(WARN_CLOSED))
bc37a18f 2399 report_evil_fh(gv, io, PL_op->op_type);
93189314 2400 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2401 RETPUSHUNDEF;
2402#else
cea2e8a9 2403 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2404#endif
2405}
2406
2407PP(pp_connect)
2408{
a0d0e21e 2409#ifdef HAS_SOCKET
9cad6237 2410 dSP;
748a9306 2411 SV *addrsv = POPs;
a0d0e21e
LW		 2412 char *addr;
2413 GV *gv = (GV*)POPs;
2414 register IO *io = GvIOn(gv);
2415 STRLEN len;
2416
2417 if (!io || !IoIFP(io))
2418 goto nuts;
2419
748a9306 2420 addr = SvPV(addrsv, len);
a0d0e21e 2421 TAINT_PROPER("connect");
6ad3d225 2422 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2423 RETPUSHYES;
2424 else
2425 RETPUSHUNDEF;
2426
2427nuts:
599cee73 2428 if (ckWARN(WARN_CLOSED))
bc37a18f 2429 report_evil_fh(gv, io, PL_op->op_type);
93189314 2430 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2431 RETPUSHUNDEF;
2432#else
cea2e8a9 2433 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2434#endif
2435}
2436
2437PP(pp_listen)
2438{
a0d0e21e 2439#ifdef HAS_SOCKET
9cad6237 2440 dSP;
a0d0e21e
LW		 2441 int backlog = POPi;
2442 GV *gv = (GV*)POPs;
c289d2f7 2443 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2444
c289d2f7 2445 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2446 goto nuts;
2447
6ad3d225 2448 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2449 RETPUSHYES;
2450 else
2451 RETPUSHUNDEF;
2452
2453nuts:
599cee73 2454 if (ckWARN(WARN_CLOSED))
bc37a18f 2455 report_evil_fh(gv, io, PL_op->op_type);
93189314 2456 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2457 RETPUSHUNDEF;
2458#else
cea2e8a9 2459 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2460#endif
2461}
2462
2463PP(pp_accept)
2464{
a0d0e21e 2465#ifdef HAS_SOCKET
9cad6237 2466 dSP; dTARGET;
a0d0e21e
LW		 2467 GV *ngv;
2468 GV *ggv;
2469 register IO *nstio;
2470 register IO *gstio;
4633a7c4 2471 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2472 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2473 int fd;
2474
2475 ggv = (GV*)POPs;
2476 ngv = (GV*)POPs;
2477
2478 if (!ngv)
2479 goto badexit;
2480 if (!ggv)
2481 goto nuts;
2482
2483 gstio = GvIO(ggv);
2484 if (!gstio || !IoIFP(gstio))
2485 goto nuts;
2486
2487 nstio = GvIOn(ngv);
6ad3d225 2488 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2489 if (fd < 0)
2490 goto badexit;
a70048fb
AB		 2491 if (IoIFP(nstio))
2492 do_close(ngv, FALSE);
479b2847 2493 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
7e56aaa7 2494 IoOFP(nstio) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2495 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2496 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2497 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2498 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2499 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2500 goto badexit;
2501 }
8d2a6795
GS		 2502#if defined(HAS_FCNTL) && defined(F_SETFD)
2503 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2504#endif
a0d0e21e 2505
ed79a026 2506#ifdef EPOC
a9f1f6b0
OF		 2507 len = sizeof saddr; /* EPOC somehow truncates info */
2508 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026
OF		 2509#endif
2510
748a9306 2511 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2512 RETURN;
2513
2514nuts:
599cee73 2515 if (ckWARN(WARN_CLOSED))
bc37a18f 2516 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2517 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2518
2519badexit:
2520 RETPUSHUNDEF;
2521
2522#else
cea2e8a9 2523 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2524#endif
2525}
2526
2527PP(pp_shutdown)
2528{
a0d0e21e 2529#ifdef HAS_SOCKET
9cad6237 2530 dSP; dTARGET;
a0d0e21e
LW		 2531 int how = POPi;
2532 GV *gv = (GV*)POPs;
2533 register IO *io = GvIOn(gv);
2534
2535 if (!io || !IoIFP(io))
2536 goto nuts;
2537
6ad3d225 2538 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2539 RETURN;
2540
2541nuts:
599cee73 2542 if (ckWARN(WARN_CLOSED))
bc37a18f 2543 report_evil_fh(gv, io, PL_op->op_type);
93189314 2544 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2545 RETPUSHUNDEF;
2546#else
cea2e8a9 2547 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2548#endif
2549}
2550
2551PP(pp_gsockopt)
2552{
2553#ifdef HAS_SOCKET
cea2e8a9 2554 return pp_ssockopt();
a0d0e21e 2555#else
cea2e8a9 2556 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2557#endif
2558}
2559
2560PP(pp_ssockopt)
2561{
a0d0e21e 2562#ifdef HAS_SOCKET
9cad6237 2563 dSP;
533c011a 2564 int optype = PL_op->op_type;
a0d0e21e
LW		 2565 SV *sv;
2566 int fd;
2567 unsigned int optname;
2568 unsigned int lvl;
2569 GV *gv;
2570 register IO *io;
1e422769 2571 Sock_size_t len;
a0d0e21e
LW		 2572
2573 if (optype == OP_GSOCKOPT)
2574 sv = sv_2mortal(NEWSV(22, 257));
2575 else
2576 sv = POPs;
2577 optname = (unsigned int) POPi;
2578 lvl = (unsigned int) POPi;
2579
2580 gv = (GV*)POPs;
2581 io = GvIOn(gv);
2582 if (!io || !IoIFP(io))
2583 goto nuts;
2584
760ac839 2585 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2586 switch (optype) {
2587 case OP_GSOCKOPT:
748a9306 2588 SvGROW(sv, 257);
a0d0e21e 2589 (void)SvPOK_only(sv);
748a9306
LW		 2590 SvCUR_set(sv,256);
2591 *SvEND(sv) ='\0';
1e422769 2592 len = SvCUR(sv);
6ad3d225 2593 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2594 goto nuts2;
1e422769 2595 SvCUR_set(sv, len);
748a9306 2596 *SvEND(sv) ='\0';
a0d0e21e
LW		 2597 PUSHs(sv);
2598 break;
2599 case OP_SSOCKOPT: {
1e422769 2600 char *buf;
2601 int aint;
2602 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2603 STRLEN l;
2604 buf = SvPV(sv, l);
2605 len = l;
1e422769 2606 }
56ee1660 2607 else {
a0d0e21e
LW		 2608 aint = (int)SvIV(sv);
2609 buf = (char*)&aint;
2610 len = sizeof(int);
2611 }
6ad3d225 2612 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2613 goto nuts2;
3280af22 2614 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2615 }
2616 break;
2617 }
2618 RETURN;
2619
2620nuts:
599cee73 2621 if (ckWARN(WARN_CLOSED))
bc37a18f 2622 report_evil_fh(gv, io, optype);
93189314 2623 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2624nuts2:
2625 RETPUSHUNDEF;
2626
2627#else
cea2e8a9 2628 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2629#endif
2630}
2631
2632PP(pp_getsockname)
2633{
2634#ifdef HAS_SOCKET
cea2e8a9 2635 return pp_getpeername();
a0d0e21e 2636#else
cea2e8a9 2637 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2638#endif
2639}
2640
2641PP(pp_getpeername)
2642{
a0d0e21e 2643#ifdef HAS_SOCKET
9cad6237 2644 dSP;
533c011a 2645 int optype = PL_op->op_type;
a0d0e21e
LW		 2646 SV *sv;
2647 int fd;
2648 GV *gv = (GV*)POPs;
2649 register IO *io = GvIOn(gv);
1e422769 2650 Sock_size_t len;
a0d0e21e
LW		 2651
2652 if (!io || !IoIFP(io))
2653 goto nuts;
2654
2655 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2656 (void)SvPOK_only(sv);
1e422769 2657 len = 256;
2658 SvCUR_set(sv, len);
748a9306 2659 *SvEND(sv) ='\0';
760ac839 2660 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2661 switch (optype) {
2662 case OP_GETSOCKNAME:
6ad3d225 2663 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2664 goto nuts2;
2665 break;
2666 case OP_GETPEERNAME:
6ad3d225 2667 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2668 goto nuts2;
490ab354
JH		 2669#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2670 {
2671 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";
2672 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2673 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2674 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2675 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2676 goto nuts2;
490ab354
JH		 2677 }
2678 }
2679#endif
a0d0e21e
LW		 2680 break;
2681 }
13826f2c
CS		 2682#ifdef BOGUS_GETNAME_RETURN
2683 /* Interactive Unix, getpeername() and getsockname()
2684 does not return valid namelen */
1e422769 2685 if (len == BOGUS_GETNAME_RETURN)
2686 len = sizeof(struct sockaddr);
13826f2c 2687#endif
1e422769 2688 SvCUR_set(sv, len);
748a9306 2689 *SvEND(sv) ='\0';
a0d0e21e
LW		 2690 PUSHs(sv);
2691 RETURN;
2692
2693nuts:
599cee73 2694 if (ckWARN(WARN_CLOSED))
bc37a18f 2695 report_evil_fh(gv, io, optype);
93189314 2696 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2697nuts2:
2698 RETPUSHUNDEF;
2699
2700#else
cea2e8a9 2701 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2702#endif
2703}
2704
2705/* Stat calls. */
2706
2707PP(pp_lstat)
2708{
cea2e8a9 2709 return pp_stat();
a0d0e21e
LW		 2710}
2711
2712PP(pp_stat)
2713{
39644a26 2714 dSP;
2dd78f96 2715 GV *gv;
54310121 2716 I32 gimme;
a0d0e21e 2717 I32 max = 13;
2d8e6c8d 2718 STRLEN n_a;
a0d0e21e 2719
533c011a 2720 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2721 gv = cGVOP_gv;
8a4e5b40 2722 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2723 if (gv != PL_defgv) {
2724 if (ckWARN(WARN_IO))
9014280d 2725 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2726 "lstat() on filehandle %s", GvENAME(gv));
2727 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2728 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2729 }
2730
748a9306 2731 do_fstat:
2dd78f96 2732 if (gv != PL_defgv) {
3280af22 2733 PL_laststype = OP_STAT;
2dd78f96 2734 PL_statgv = gv;
3280af22 2735 sv_setpv(PL_statname, "");
2dd78f96
JH		 2736 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2737 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2738 }
9ddeeac9 2739 if (PL_laststatval < 0) {
2dd78f96
JH		 2740 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2741 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2742 max = 0;
9ddeeac9 2743 }
a0d0e21e
LW		 2744 }
2745 else {
748a9306
LW		 2746 SV* sv = POPs;
2747 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2748 gv = (GV*)sv;
748a9306
LW		 2749 goto do_fstat;
2750 }
2751 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2752 gv = (GV*)SvRV(sv);
5d3e98de 2753 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2754 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2755 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2756 goto do_fstat;
2757 }
2d8e6c8d 2758 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2759 PL_statgv = Nullgv;
a0d0e21e 2760#ifdef HAS_LSTAT
533c011a
NIS		 2761 PL_laststype = PL_op->op_type;
2762 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2763 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2764 else
2765#endif
2d8e6c8d 2766 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2767 if (PL_laststatval < 0) {
2d8e6c8d 2768 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2769 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2770 max = 0;
2771 }
2772 }
2773
54310121 2774 gimme = GIMME_V;
2775 if (gimme != G_ARRAY) {
2776 if (gimme != G_VOID)
2777 XPUSHs(boolSV(max));
2778 RETURN;
a0d0e21e
LW		 2779 }
2780 if (max) {
36477c24 2781 EXTEND(SP, max);
2782 EXTEND_MORTAL(max);
1ff81528
PL		 2783 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2784 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2785 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2786 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2787#if Uid_t_size > IVSIZE
2788 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2789#else
23dcd6c8 2790# if Uid_t_sign <= 0
1ff81528 2791 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2792# else
2793 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2794# endif
146174a9 2795#endif
301e8125 2796#if Gid_t_size > IVSIZE
146174a9
CB		 2797 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2798#else
23dcd6c8 2799# if Gid_t_sign <= 0
1ff81528 2800 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2801# else
2802 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2803# endif
146174a9 2804#endif
cbdc8872 2805#ifdef USE_STAT_RDEV
1ff81528 2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2807#else
79cb57f6 2808 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2809#endif
146174a9 2810#if Off_t_size > IVSIZE
4a9d6100 2811 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2812#else
1ff81528 2813 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2814#endif
cbdc8872 2815#ifdef BIG_TIME
172ae379
JH		 2816 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2817 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2818 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2819#else
1ff81528
PL		 2820 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2821 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2822 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2823#endif
a0d0e21e 2824#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2825 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2826 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2827#else
79cb57f6
GS		 2828 PUSHs(sv_2mortal(newSVpvn("", 0)));
2829 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2830#endif
2831 }
2832 RETURN;
2833}
2834
2835PP(pp_ftrread)
2836{
9cad6237 2837 I32 result;
2a3ff820 2838 dSP;
5ff3f7a4 2839#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2840 STRLEN n_a;
5ff3f7a4 2841 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2842 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2843 if (result == 0)
2844 RETPUSHYES;
2845 if (result < 0)
2846 RETPUSHUNDEF;
2847 RETPUSHNO;
22865c03
GS		 2848 }
2849 else
cea2e8a9 2850 result = my_stat();
5ff3f7a4 2851#else
cea2e8a9 2852 result = my_stat();
5ff3f7a4 2853#endif
22865c03 2854 SPAGAIN;
a0d0e21e
LW		 2855 if (result < 0)
2856 RETPUSHUNDEF;
3280af22 2857 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2858 RETPUSHYES;
2859 RETPUSHNO;
2860}
2861
2862PP(pp_ftrwrite)
2863{
9cad6237 2864 I32 result;
2a3ff820 2865 dSP;
5ff3f7a4 2866#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2867 STRLEN n_a;
5ff3f7a4 2868 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2869 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2870 if (result == 0)
2871 RETPUSHYES;
2872 if (result < 0)
2873 RETPUSHUNDEF;
2874 RETPUSHNO;
22865c03
GS		 2875 }
2876 else
cea2e8a9 2877 result = my_stat();
5ff3f7a4 2878#else
cea2e8a9 2879 result = my_stat();
5ff3f7a4 2880#endif
22865c03 2881 SPAGAIN;
a0d0e21e
LW		 2882 if (result < 0)
2883 RETPUSHUNDEF;
3280af22 2884 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2885 RETPUSHYES;
2886 RETPUSHNO;
2887}
2888
2889PP(pp_ftrexec)
2890{
9cad6237 2891 I32 result;
2a3ff820 2892 dSP;
5ff3f7a4 2893#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2894 STRLEN n_a;
5ff3f7a4 2895 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2896 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2897 if (result == 0)
2898 RETPUSHYES;
2899 if (result < 0)
2900 RETPUSHUNDEF;
2901 RETPUSHNO;
22865c03
GS		 2902 }
2903 else
cea2e8a9 2904 result = my_stat();
5ff3f7a4 2905#else
cea2e8a9 2906 result = my_stat();
5ff3f7a4 2907#endif
22865c03 2908 SPAGAIN;
a0d0e21e
LW		 2909 if (result < 0)
2910 RETPUSHUNDEF;
3280af22 2911 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2912 RETPUSHYES;
2913 RETPUSHNO;
2914}
2915
2916PP(pp_fteread)
2917{
9cad6237 2918 I32 result;
2a3ff820 2919 dSP;
5ff3f7a4 2920#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2921 STRLEN n_a;
5ff3f7a4 2922 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2923 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2924 if (result == 0)
2925 RETPUSHYES;
2926 if (result < 0)
2927 RETPUSHUNDEF;
2928 RETPUSHNO;
22865c03
GS		 2929 }
2930 else
cea2e8a9 2931 result = my_stat();
5ff3f7a4 2932#else
cea2e8a9 2933 result = my_stat();
5ff3f7a4 2934#endif
22865c03 2935 SPAGAIN;
a0d0e21e
LW		 2936 if (result < 0)
2937 RETPUSHUNDEF;
3280af22 2938 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2939 RETPUSHYES;
2940 RETPUSHNO;
2941}
2942
2943PP(pp_ftewrite)
2944{
9cad6237 2945 I32 result;
2a3ff820 2946 dSP;
5ff3f7a4 2947#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2948 STRLEN n_a;
5ff3f7a4 2949 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2950 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2951 if (result == 0)
2952 RETPUSHYES;
2953 if (result < 0)
2954 RETPUSHUNDEF;
2955 RETPUSHNO;
22865c03
GS		 2956 }
2957 else
cea2e8a9 2958 result = my_stat();
5ff3f7a4 2959#else
cea2e8a9 2960 result = my_stat();
5ff3f7a4 2961#endif
22865c03 2962 SPAGAIN;
a0d0e21e
LW		 2963 if (result < 0)
2964 RETPUSHUNDEF;
3280af22 2965 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2966 RETPUSHYES;
2967 RETPUSHNO;
2968}
2969
2970PP(pp_fteexec)
2971{
9cad6237 2972 I32 result;
2a3ff820 2973 dSP;
5ff3f7a4 2974#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2975 STRLEN n_a;
5ff3f7a4 2976 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2977 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2978 if (result == 0)
2979 RETPUSHYES;
2980 if (result < 0)
2981 RETPUSHUNDEF;
2982 RETPUSHNO;
22865c03
GS		 2983 }
2984 else
cea2e8a9 2985 result = my_stat();
5ff3f7a4 2986#else
cea2e8a9 2987 result = my_stat();
5ff3f7a4 2988#endif
22865c03 2989 SPAGAIN;
a0d0e21e
LW		 2990 if (result < 0)
2991 RETPUSHUNDEF;
3280af22 2992 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2993 RETPUSHYES;
2994 RETPUSHNO;
2995}
2996
2997PP(pp_ftis)
2998{
9cad6237 2999 I32 result = my_stat();
2a3ff820 3000 dSP;
a0d0e21e
LW		 3001 if (result < 0)
3002 RETPUSHUNDEF;
3003 RETPUSHYES;
3004}
3005
3006PP(pp_fteowned)
3007{
cea2e8a9 3008 return pp_ftrowned();
a0d0e21e
LW		 3009}
3010
3011PP(pp_ftrowned)
3012{
9cad6237 3013 I32 result = my_stat();
2a3ff820 3014 dSP;
a0d0e21e
LW		 3015 if (result < 0)
3016 RETPUSHUNDEF;
146174a9
CB		 3017 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3018 PL_euid : PL_uid) )
a0d0e21e
LW		 3019 RETPUSHYES;
3020 RETPUSHNO;
3021}
3022
3023PP(pp_ftzero)
3024{
9cad6237 3025 I32 result = my_stat();
2a3ff820 3026 dSP;
a0d0e21e
LW		 3027 if (result < 0)
3028 RETPUSHUNDEF;
146174a9 3029 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3030 RETPUSHYES;
3031 RETPUSHNO;
3032}
3033
3034PP(pp_ftsize)
3035{
9cad6237 3036 I32 result = my_stat();
2a3ff820 3037 dSP; dTARGET;
a0d0e21e
LW		 3038 if (result < 0)
3039 RETPUSHUNDEF;
146174a9
CB		 3040#if Off_t_size > IVSIZE
3041 PUSHn(PL_statcache.st_size);
3042#else
3280af22 3043 PUSHi(PL_statcache.st_size);
146174a9 3044#endif
a0d0e21e
LW		 3045 RETURN;
3046}
3047
3048PP(pp_ftmtime)
3049{
9cad6237 3050 I32 result = my_stat();
2a3ff820 3051 dSP; dTARGET;
a0d0e21e
LW		 3052 if (result < 0)
3053 RETPUSHUNDEF;
c6419e06 3054 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 3055 RETURN;
3056}
3057
3058PP(pp_ftatime)
3059{
9cad6237 3060 I32 result = my_stat();
2a3ff820 3061 dSP; dTARGET;
a0d0e21e
LW		 3062 if (result < 0)
3063 RETPUSHUNDEF;
c6419e06 3064 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3065 RETURN;
3066}
3067
3068PP(pp_ftctime)
3069{
9cad6237 3070 I32 result = my_stat();
2a3ff820 3071 dSP; dTARGET;
a0d0e21e
LW		 3072 if (result < 0)
3073 RETPUSHUNDEF;
c6419e06 3074 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3075 RETURN;
3076}
3077
3078PP(pp_ftsock)
3079{
9cad6237 3080 I32 result = my_stat();
2a3ff820 3081 dSP;
a0d0e21e
LW		 3082 if (result < 0)
3083 RETPUSHUNDEF;
3280af22 3084 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3085 RETPUSHYES;
3086 RETPUSHNO;
3087}
3088
3089PP(pp_ftchr)
3090{
9cad6237 3091 I32 result = my_stat();
2a3ff820 3092 dSP;
a0d0e21e
LW		 3093 if (result < 0)
3094 RETPUSHUNDEF;
3280af22 3095 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3096 RETPUSHYES;
3097 RETPUSHNO;
3098}
3099
3100PP(pp_ftblk)
3101{
9cad6237 3102 I32 result = my_stat();
2a3ff820 3103 dSP;
a0d0e21e
LW		 3104 if (result < 0)
3105 RETPUSHUNDEF;
3280af22 3106 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3107 RETPUSHYES;
3108 RETPUSHNO;
3109}
3110
3111PP(pp_ftfile)
3112{
9cad6237 3113 I32 result = my_stat();
2a3ff820 3114 dSP;
a0d0e21e
LW		 3115 if (result < 0)
3116 RETPUSHUNDEF;
3280af22 3117 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3118 RETPUSHYES;
3119 RETPUSHNO;
3120}
3121
3122PP(pp_ftdir)
3123{
9cad6237 3124 I32 result = my_stat();
2a3ff820 3125 dSP;
a0d0e21e
LW		 3126 if (result < 0)
3127 RETPUSHUNDEF;
3280af22 3128 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3129 RETPUSHYES;
3130 RETPUSHNO;
3131}
3132
3133PP(pp_ftpipe)
3134{
9cad6237 3135 I32 result = my_stat();
2a3ff820 3136 dSP;
a0d0e21e
LW		 3137 if (result < 0)
3138 RETPUSHUNDEF;
3280af22 3139 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3140 RETPUSHYES;
3141 RETPUSHNO;
3142}
3143
3144PP(pp_ftlink)
3145{
9cad6237 3146 I32 result = my_lstat();
2a3ff820 3147 dSP;
a0d0e21e
LW		 3148 if (result < 0)
3149 RETPUSHUNDEF;
3280af22 3150 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3151 RETPUSHYES;
3152 RETPUSHNO;
3153}
3154
3155PP(pp_ftsuid)
3156{
39644a26 3157 dSP;
a0d0e21e 3158#ifdef S_ISUID
cea2e8a9 3159 I32 result = my_stat();
a0d0e21e
LW		 3160 SPAGAIN;
3161 if (result < 0)
3162 RETPUSHUNDEF;
3280af22 3163 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3164 RETPUSHYES;
3165#endif
3166 RETPUSHNO;
3167}
3168
3169PP(pp_ftsgid)
3170{
39644a26 3171 dSP;
a0d0e21e 3172#ifdef S_ISGID
cea2e8a9 3173 I32 result = my_stat();
a0d0e21e
LW		 3174 SPAGAIN;
3175 if (result < 0)
3176 RETPUSHUNDEF;
3280af22 3177 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3178 RETPUSHYES;
3179#endif
3180 RETPUSHNO;
3181}
3182
3183PP(pp_ftsvtx)
3184{
39644a26 3185 dSP;
a0d0e21e 3186#ifdef S_ISVTX
cea2e8a9 3187 I32 result = my_stat();
a0d0e21e
LW		 3188 SPAGAIN;
3189 if (result < 0)
3190 RETPUSHUNDEF;
3280af22 3191 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3192 RETPUSHYES;
3193#endif
3194 RETPUSHNO;
3195}
3196
3197PP(pp_fttty)
3198{
39644a26 3199 dSP;
a0d0e21e
LW		 3200 int fd;
3201 GV *gv;
fb73857a 3202 char *tmps = Nullch;
2d8e6c8d 3203 STRLEN n_a;
fb73857a 3204
533c011a 3205 if (PL_op->op_flags & OPf_REF)
146174a9 3206 gv = cGVOP_gv;
fb73857a 3207 else if (isGV(TOPs))
3208 gv = (GV*)POPs;
3209 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3210 gv = (GV*)SvRV(POPs);
a0d0e21e 3211 else
2d8e6c8d 3212 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3213
a0d0e21e 3214 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3215 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3216 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3217 fd = atoi(tmps);
3218 else
3219 RETPUSHUNDEF;
6ad3d225 3220 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3221 RETPUSHYES;
3222 RETPUSHNO;
3223}
3224
16d20bd9
AD		 3225#if defined(atarist) /* this will work with atariST. Configure will
3226 make guesses for other systems. */
3227# define FILE_base(f) ((f)->_base)
3228# define FILE_ptr(f) ((f)->_ptr)
3229# define FILE_cnt(f) ((f)->_cnt)
3230# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3231#endif
3232
3233PP(pp_fttext)
3234{
39644a26 3235 dSP;
a0d0e21e
LW		 3236 I32 i;
3237 I32 len;
3238 I32 odd = 0;
3239 STDCHAR tbuf[512];
3240 register STDCHAR *s;
3241 register IO *io;
5f05dabc 3242 register SV *sv;
3243 GV *gv;
2d8e6c8d 3244 STRLEN n_a;
146174a9 3245 PerlIO *fp;
a0d0e21e 3246
533c011a 3247 if (PL_op->op_flags & OPf_REF)
146174a9 3248 gv = cGVOP_gv;
5f05dabc 3249 else if (isGV(TOPs))
3250 gv = (GV*)POPs;
3251 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3252 gv = (GV*)SvRV(POPs);
3253 else
3254 gv = Nullgv;
3255
3256 if (gv) {
a0d0e21e 3257 EXTEND(SP, 1);
3280af22
NIS		 3258 if (gv == PL_defgv) {
3259 if (PL_statgv)
3260 io = GvIO(PL_statgv);
a0d0e21e 3261 else {
3280af22 3262 sv = PL_statname;
a0d0e21e
LW		 3263 goto really_filename;
3264 }
3265 }
3266 else {
3280af22
NIS		 3267 PL_statgv = gv;
3268 PL_laststatval = -1;
3269 sv_setpv(PL_statname, "");
3270 io = GvIO(PL_statgv);
a0d0e21e
LW		 3271 }
3272 if (io && IoIFP(io)) {
5f05dabc 3273 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3274 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3275 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3276 if (PL_laststatval < 0)
5f05dabc 3277 RETPUSHUNDEF;
9cbac4c7 3278 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3279 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3280 RETPUSHNO;
3281 else
3282 RETPUSHYES;
9cbac4c7 3283 }
a20bf0c3 3284 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3285 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3286 if (i != EOF)
760ac839 3287 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3288 }
a20bf0c3 3289 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3290 RETPUSHYES;
a20bf0c3
JH		 3291 len = PerlIO_get_bufsiz(IoIFP(io));
3292 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3293 /* sfio can have large buffers - limit to 512 */
3294 if (len > 512)
3295 len = 512;
a0d0e21e
LW		 3296 }
3297 else {
2dd78f96 3298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3299 gv = cGVOP_gv;
2dd78f96 3300 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3301 }
93189314 3302 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3303 RETPUSHUNDEF;
3304 }
3305 }
3306 else {
3307 sv = POPs;
5f05dabc 3308 really_filename:
3280af22
NIS		 3309 PL_statgv = Nullgv;
3310 PL_laststatval = -1;
5c9aa243 3311 PL_laststype = OP_STAT;
2d8e6c8d 3312 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3313 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3314 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
9014280d 3315 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3316 RETPUSHUNDEF;
3317 }
146174a9
CB		 3318 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3319 if (PL_laststatval < 0) {
3320 (void)PerlIO_close(fp);
5f05dabc 3321 RETPUSHUNDEF;
146174a9 3322 }
60382766 3323 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3324 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3325 (void)PerlIO_close(fp);
a0d0e21e 3326 if (len <= 0) {
533c011a 3327 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3328 RETPUSHNO; /* special case NFS directories */
3329 RETPUSHYES; /* null file is anything */
3330 }
3331 s = tbuf;
3332 }
3333
3334 /* now scan s to look for textiness */
4633a7c4 3335 /* XXX ASCII dependent code */
a0d0e21e 3336
146174a9
CB		 3337#if defined(DOSISH) || defined(USEMYBINMODE)
3338 /* ignore trailing ^Z on short files */
3339 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3340 --len;
3341#endif
3342
a0d0e21e
LW		 3343 for (i = 0; i < len; i++, s++) {
3344 if (!*s) { /* null never allowed in text */
3345 odd += len;
3346 break;
3347 }
9d116dd7 3348#ifdef EBCDIC
301e8125 3349 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3350 odd++;
3351#else
146174a9
CB		 3352 else if (*s & 128) {
3353#ifdef USE_LOCALE
2de3dbcc 3354 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3355 continue;
3356#endif
3357 /* utf8 characters don't count as odd */
fd400ab9 3358 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3359 int ulen = UTF8SKIP(s);
3360 if (ulen < len - i) {
3361 int j;
3362 for (j = 1; j < ulen; j++) {
fd400ab9 3363 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3364 goto not_utf8;
3365 }
3366 --ulen; /* loop does extra increment */
3367 s += ulen;
3368 i += ulen;
3369 continue;
3370 }
3371 }
3372 not_utf8:
3373 odd++;
146174a9 3374 }
a0d0e21e
LW		 3375 else if (*s < 32 &&
3376 *s != '\n' && *s != '\r' && *s != '\b' &&
3377 *s != '\t' && *s != '\f' && *s != 27)
3378 odd++;
9d116dd7 3379#endif
a0d0e21e
LW		 3380 }
3381
533c011a 3382 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3383 RETPUSHNO;
3384 else
3385 RETPUSHYES;
3386}
3387
3388PP(pp_ftbinary)
3389{
cea2e8a9 3390 return pp_fttext();
a0d0e21e
LW		 3391}
3392
3393/* File calls. */
3394
3395PP(pp_chdir)
3396{
39644a26 3397 dSP; dTARGET;
a0d0e21e
LW		 3398 char *tmps;
3399 SV **svp;
2d8e6c8d 3400 STRLEN n_a;
a0d0e21e 3401
35ae6b54
MS		 3402 if( MAXARG == 1 )
3403 tmps = POPpx;
3404 else
3405 tmps = 0;
3406
3407 if( !tmps || !*tmps ) {
3408 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3409 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3410#ifdef VMS
35ae6b54 3411 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3412#endif
35ae6b54
MS		 3413 )
3414 {
3415 if( MAXARG == 1 )
9014280d 3416 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3417 tmps = SvPV(*svp, n_a);
3418 }
72f496dc 3419 else {
389ec635 3420 PUSHi(0);
b7ab37f8 3421 TAINT_PROPER("chdir");
389ec635
MS		 3422 RETURN;
3423 }
8ea155d1 3424 }
8ea155d1 3425
a0d0e21e 3426 TAINT_PROPER("chdir");
6ad3d225 3427 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3428#ifdef VMS
3429 /* Clear the DEFAULT element of ENV so we'll get the new value
3430 * in the future. */
6b88bc9c 3431 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3432#endif
a0d0e21e
LW		 3433 RETURN;
3434}
3435
3436PP(pp_chown)
3437{
a0d0e21e 3438#ifdef HAS_CHOWN
76ffd3b9
IZ		 3439 dSP; dMARK; dTARGET;
3440 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3441
a0d0e21e
LW		 3442 SP = MARK;
3443 PUSHi(value);
3444 RETURN;
3445#else
0322a713 3446 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3447#endif
3448}
3449
3450PP(pp_chroot)
3451{
a0d0e21e 3452#ifdef HAS_CHROOT
76ffd3b9 3453 dSP; dTARGET;
2d8e6c8d 3454 STRLEN n_a;
d05c1ba0 3455 char *tmps = POPpx;
a0d0e21e
LW		 3456 TAINT_PROPER("chroot");
3457 PUSHi( chroot(tmps) >= 0 );
3458 RETURN;
3459#else
cea2e8a9 3460 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3461#endif
3462}
3463
3464PP(pp_unlink)
3465{
39644a26 3466 dSP; dMARK; dTARGET;
a0d0e21e 3467 I32 value;
533c011a 3468 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3469 SP = MARK;
3470 PUSHi(value);
3471 RETURN;
3472}
3473
3474PP(pp_chmod)
3475{
39644a26 3476 dSP; dMARK; dTARGET;
a0d0e21e 3477 I32 value;
533c011a 3478 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3479 SP = MARK;
3480 PUSHi(value);
3481 RETURN;
3482}
3483
3484PP(pp_utime)
3485{
39644a26 3486 dSP; dMARK; dTARGET;
a0d0e21e 3487 I32 value;
533c011a 3488 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3489 SP = MARK;
3490 PUSHi(value);
3491 RETURN;
3492}
3493
3494PP(pp_rename)
3495{
39644a26 3496 dSP; dTARGET;
a0d0e21e 3497 int anum;
2d8e6c8d 3498 STRLEN n_a;
a0d0e21e 3499
2d8e6c8d
GS		 3500 char *tmps2 = POPpx;
3501 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3502 TAINT_PROPER("rename");
3503#ifdef HAS_RENAME
baed7233 3504 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3505#else
6b88bc9c 3506 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3507 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3508 anum = 1;
3509 else {
3654eb6c 3510 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3511 (void)UNLINK(tmps2);
3512 if (!(anum = link(tmps, tmps2)))
3513 anum = UNLINK(tmps);
3514 }
a0d0e21e
LW		 3515 }
3516#endif
3517 SETi( anum >= 0 );
3518 RETURN;
3519}
3520
3521PP(pp_link)
3522{
a0d0e21e 3523#ifdef HAS_LINK
370f6000 3524 dSP; dTARGET;
2d8e6c8d
GS		 3525 STRLEN n_a;
3526 char *tmps2 = POPpx;
3527 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3528 TAINT_PROPER("link");
146174a9 3529 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3530 RETURN;
a0d0e21e 3531#else
0322a713 3532 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3533#endif
a0d0e21e
LW		 3534}
3535
3536PP(pp_symlink)
3537{
a0d0e21e 3538#ifdef HAS_SYMLINK
9cad6237 3539 dSP; dTARGET;
2d8e6c8d
GS		 3540 STRLEN n_a;
3541 char *tmps2 = POPpx;
3542 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3543 TAINT_PROPER("symlink");
3544 SETi( symlink(tmps, tmps2) >= 0 );
3545 RETURN;
3546#else
cea2e8a9 3547 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3548#endif
3549}
3550
3551PP(pp_readlink)
3552{
76ffd3b9 3553 dSP;
a0d0e21e 3554#ifdef HAS_SYMLINK
76ffd3b9 3555 dTARGET;
a0d0e21e 3556 char *tmps;
46fc3d4c 3557 char buf[MAXPATHLEN];
a0d0e21e 3558 int len;
2d8e6c8d 3559 STRLEN n_a;
46fc3d4c 3560
fb73857a 3561#ifndef INCOMPLETE_TAINTS
3562 TAINT;
3563#endif
2d8e6c8d 3564 tmps = POPpx;
97dcea33 3565 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3566 EXTEND(SP, 1);
3567 if (len < 0)
3568 RETPUSHUNDEF;
3569 PUSHp(buf, len);
3570 RETURN;
3571#else
3572 EXTEND(SP, 1);
3573 RETSETUNDEF; /* just pretend it's a normal file */
3574#endif
3575}
3576
3577#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3578STATIC int
cea2e8a9 3579S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3580{
1e422769 3581 char *save_filename = filename;
3582 char *cmdline;
3583 char *s;
760ac839 3584 PerlIO *myfp;
1e422769 3585 int anum = 1;
a0d0e21e 3586
1e422769 3587 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3588 strcpy(cmdline, cmd);
3589 strcat(cmdline, " ");
3590 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3591 *s++ = '\\';
3592 *s++ = *filename++;
3593 }
3594 strcpy(s, " 2>&1");
6ad3d225 3595 myfp = PerlProc_popen(cmdline, "r");
1e422769 3596 Safefree(cmdline);
3597
a0d0e21e 3598 if (myfp) {
1e422769 3599 SV *tmpsv = sv_newmortal();
6b88bc9c 3600 /* Need to save/restore 'PL_rs' ?? */
760ac839 3601 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3602 (void)PerlProc_pclose(myfp);
a0d0e21e 3603 if (s != Nullch) {
1e422769 3604 int e;
3605 for (e = 1;
a0d0e21e 3606#ifdef HAS_SYS_ERRLIST
1e422769 3607 e <= sys_nerr
3608#endif
3609 ; e++)
3610 {
3611 /* you don't see this */
3612 char *errmsg =
3613#ifdef HAS_SYS_ERRLIST
3614 sys_errlist[e]
a0d0e21e 3615#else
1e422769 3616 strerror(e)
a0d0e21e 3617#endif
1e422769 3618 ;
3619 if (!errmsg)
3620 break;
3621 if (instr(s, errmsg)) {
3622 SETERRNO(e,0);
3623 return 0;
3624 }
a0d0e21e 3625 }
748a9306 3626 SETERRNO(0,0);
a0d0e21e
LW		 3627#ifndef EACCES
3628#define EACCES EPERM
3629#endif
1e422769 3630 if (instr(s, "cannot make"))
93189314 3631 SETERRNO(EEXIST,RMS_FEX);
1e422769 3632 else if (instr(s, "existing file"))
93189314 3633 SETERRNO(EEXIST,RMS_FEX);
1e422769 3634 else if (instr(s, "ile exists"))
93189314 3635 SETERRNO(EEXIST,RMS_FEX);
1e422769 3636 else if (instr(s, "non-exist"))
93189314 3637 SETERRNO(ENOENT,RMS_FNF);
1e422769 3638 else if (instr(s, "does not exist"))
93189314 3639 SETERRNO(ENOENT,RMS_FNF);
1e422769 3640 else if (instr(s, "not empty"))
93189314 3641 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3642 else if (instr(s, "cannot access"))
93189314 3643 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3644 else
93189314 3645 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3646 return 0;
3647 }
3648 else { /* some mkdirs return no failure indication */
6b88bc9c 3649 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3650 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3651 anum = !anum;
3652 if (anum)
748a9306 3653 SETERRNO(0,0);
a0d0e21e 3654 else
93189314 3655 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3656 }
3657 return anum;
3658 }
3659 else
3660 return 0;
3661}
3662#endif
3663
0c54f65b
RGS		 3664/* This macro removes trailing slashes from a directory name.
3665 * Different operating and file systems take differently to
3666 * trailing slashes. According to POSIX 1003.1 1996 Edition
3667 * any number of trailing slashes should be allowed.
3668 * Thusly we snip them away so that even non-conforming
3669 * systems are happy.
3670 * We should probably do this "filtering" for all
3671 * the functions that expect (potentially) directory names:
3672 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3673 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3674
3675#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3676 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3677 do { \
3678 (len)--; \
3679 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3680 (tmps) = savepvn((tmps), (len)); \
3681 (copy) = TRUE; \
3682 }
3683
a0d0e21e
LW		 3684PP(pp_mkdir)
3685{
39644a26 3686 dSP; dTARGET;
5a211162 3687 int mode;
a0d0e21e
LW		 3688#ifndef HAS_MKDIR
3689 int oldumask;
3690#endif
df25ddba 3691 STRLEN len;
5a211162 3692 char *tmps;
df25ddba 3693 bool copy = FALSE;
5a211162
GS		 3694
3695 if (MAXARG > 1)
3696 mode = POPi;
3697 else
3698 mode = 0777;
3699
0c54f65b 3700 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3701
3702 TAINT_PROPER("mkdir");
3703#ifdef HAS_MKDIR
6ad3d225 3704 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3705#else
3706 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3707 oldumask = PerlLIO_umask(0);
3708 PerlLIO_umask(oldumask);
3709 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3710#endif
df25ddba
JH		 3711 if (copy)
3712 Safefree(tmps);
a0d0e21e
LW		 3713 RETURN;
3714}
3715
3716PP(pp_rmdir)
3717{
39644a26 3718 dSP; dTARGET;
0c54f65b 3719 STRLEN len;
a0d0e21e 3720 char *tmps;
0c54f65b 3721 bool copy = FALSE;
a0d0e21e 3722
0c54f65b 3723 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3724 TAINT_PROPER("rmdir");
3725#ifdef HAS_RMDIR
0c54f65b 3726 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3727#else
0c54f65b 3728 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3729#endif
0c54f65b
RGS		 3730 if (copy)
3731 Safefree(tmps);
a0d0e21e
LW		 3732 RETURN;
3733}
3734
3735/* Directory calls. */
3736
3737PP(pp_open_dir)
3738{
a0d0e21e 3739#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3740 dSP;
2d8e6c8d
GS		 3741 STRLEN n_a;
3742 char *dirname = POPpx;
1e2c6ed7
JH		 3743 GV *gv = (GV*)POPs;
3744 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3745
3746 if (!io)
3747 goto nope;
3748
3749 if (IoDIRP(io))
6ad3d225
GS		 3750 PerlDir_close(IoDIRP(io));
3751 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3752 goto nope;
3753
3754 RETPUSHYES;
3755nope:
3756 if (!errno)
93189314 3757 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3758 RETPUSHUNDEF;
3759#else
cea2e8a9 3760 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3761#endif
3762}
3763
3764PP(pp_readdir)
3765{
a0d0e21e 3766#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3767 dSP;
fd8cd3a3 3768#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3769 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3770#endif
3771 register Direntry_t *dp;
3772 GV *gv = (GV*)POPs;
3773 register IO *io = GvIOn(gv);
fb73857a 3774 SV *sv;
a0d0e21e
LW		 3775
3776 if (!io || !IoDIRP(io))
3777 goto nope;
3778
3779 if (GIMME == G_ARRAY) {
3780 /*SUPPRESS 560*/
155aba94 3781 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3782#ifdef DIRNAMLEN
79cb57f6 3783 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3784#else
fb73857a 3785 sv = newSVpv(dp->d_name, 0);
3786#endif
3787#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3788 if (!(IoFLAGS(io) & IOf_UNTAINT))
3789 SvTAINTED_on(sv);
a0d0e21e 3790#endif
fb73857a 3791 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3792 }
3793 }
3794 else {
6ad3d225 3795 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3796 goto nope;
3797#ifdef DIRNAMLEN
79cb57f6 3798 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3799#else
fb73857a 3800 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3801#endif
fb73857a 3802#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3803 if (!(IoFLAGS(io) & IOf_UNTAINT))
3804 SvTAINTED_on(sv);
fb73857a 3805#endif
3806 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3807 }
3808 RETURN;
3809
3810nope:
3811 if (!errno)
93189314 3812 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3813 if (GIMME == G_ARRAY)
3814 RETURN;
3815 else
3816 RETPUSHUNDEF;
3817#else
cea2e8a9 3818 DIE(aTHX_ PL_no_dir_func, "readdir");
a0d0e21e
LW		 3819#endif
3820}
3821
3822PP(pp_telldir)
3823{
a0d0e21e 3824#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3825 dSP; dTARGET;
968dcd91
JH		 3826 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3827 /* XXX netbsd still seemed to.
3828 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3829 --JHI 1999-Feb-02 */
3830# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3831 long telldir (DIR *);
dfe9444c 3832# endif
a0d0e21e
LW		 3833 GV *gv = (GV*)POPs;
3834 register IO *io = GvIOn(gv);
3835
3836 if (!io || !IoDIRP(io))
3837 goto nope;
3838
6ad3d225 3839 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3840 RETURN;
3841nope:
3842 if (!errno)
93189314 3843 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3844 RETPUSHUNDEF;
3845#else
cea2e8a9 3846 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3847#endif
3848}
3849
3850PP(pp_seekdir)
3851{
a0d0e21e 3852#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3853 dSP;
a0d0e21e
LW		 3854 long along = POPl;
3855 GV *gv = (GV*)POPs;
3856 register IO *io = GvIOn(gv);
3857
3858 if (!io || !IoDIRP(io))
3859 goto nope;
3860
6ad3d225 3861 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3862
3863 RETPUSHYES;
3864nope:
3865 if (!errno)
93189314 3866 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3867 RETPUSHUNDEF;
3868#else
cea2e8a9 3869 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3870#endif
3871}
3872
3873PP(pp_rewinddir)
3874{
a0d0e21e 3875#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3876 dSP;
a0d0e21e
LW		 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_rewind(IoDIRP(io));
a0d0e21e
LW		 3884 RETPUSHYES;
3885nope:
3886 if (!errno)
93189314 3887 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3888 RETPUSHUNDEF;
3889#else
cea2e8a9 3890 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3891#endif
3892}
3893
3894PP(pp_closedir)
3895{
a0d0e21e 3896#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3897 dSP;
a0d0e21e
LW		 3898 GV *gv = (GV*)POPs;
3899 register IO *io = GvIOn(gv);
3900
3901 if (!io || !IoDIRP(io))
3902 goto nope;
3903
3904#ifdef VOID_CLOSEDIR
6ad3d225 3905 PerlDir_close(IoDIRP(io));
a0d0e21e 3906#else
6ad3d225 3907 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3908 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3909 goto nope;
748a9306 3910 }
a0d0e21e
LW		 3911#endif
3912 IoDIRP(io) = 0;
3913
3914 RETPUSHYES;
3915nope:
3916 if (!errno)
93189314 3917 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3918 RETPUSHUNDEF;
3919#else
cea2e8a9 3920 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3921#endif
3922}
3923
3924/* Process control. */
3925
3926PP(pp_fork)
3927{
44a8e56a 3928#ifdef HAS_FORK
39644a26 3929 dSP; dTARGET;
761237fe 3930 Pid_t childpid;
a0d0e21e
LW		 3931 GV *tmpgv;
3932
3933 EXTEND(SP, 1);
45bc9206 3934 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3935 childpid = PerlProc_fork();
a0d0e21e
LW		 3936 if (childpid < 0)
3937 RETSETUNDEF;
3938 if (!childpid) {
3939 /*SUPPRESS 560*/
306196c3
MS		 3940 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3941 SvREADONLY_off(GvSV(tmpgv));
146174a9 3942 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3943 SvREADONLY_on(GvSV(tmpgv));
3944 }
4d76a344
RGS		 3945#ifdef THREADS_HAVE_PIDS
3946 PL_ppid = (IV)getppid();
3947#endif
3280af22 3948 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 3949 }
3950 PUSHi(childpid);
3951 RETURN;
3952#else
146174a9 3953# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3954 dSP; dTARGET;
146174a9
CB		 3955 Pid_t childpid;
3956
3957 EXTEND(SP, 1);
3958 PERL_FLUSHALL_FOR_CHILD;
3959 childpid = PerlProc_fork();
60fa28ff
GS		 3960 if (childpid == -1)
3961 RETSETUNDEF;
146174a9
CB		 3962 PUSHi(childpid);
3963 RETURN;
3964# else
0322a713 3965 DIE(aTHX_ PL_no_func, "fork");
146174a9 3966# endif
a0d0e21e
LW		 3967#endif
3968}
3969
3970PP(pp_wait)
3971{
301e8125 3972#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3973 dSP; dTARGET;
761237fe 3974 Pid_t childpid;
a0d0e21e 3975 int argflags;
a0d0e21e 3976
4ffa73a3
JH		 3977 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3978 childpid = wait4pid(-1, &argflags, 0);
3979 else {
3980 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3981 errno == EINTR) {
3982 PERL_ASYNC_CHECK();
3983 }
0a0ada86 3984 }
68a29c53
GS		 3985# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3986 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3987 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
3988# else
f86702cc 3989 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 3990# endif
44a8e56a 3991 XPUSHi(childpid);
a0d0e21e
LW		 3992 RETURN;
3993#else
0322a713 3994 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 3995#endif
3996}
3997
3998PP(pp_waitpid)
3999{
301e8125 4000#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4001 dSP; dTARGET;
761237fe 4002 Pid_t childpid;
a0d0e21e
LW		 4003 int optype;
4004 int argflags;
a0d0e21e 4005
a0d0e21e
LW		 4006 optype = POPi;
4007 childpid = TOPi;
4ffa73a3
JH		 4008 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4009 childpid = wait4pid(childpid, &argflags, optype);
4010 else {
4011 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 &&
4012 errno == EINTR) {
4013 PERL_ASYNC_CHECK();
4014 }
0a0ada86 4015 }
68a29c53
GS		 4016# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4017 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4018 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4019# else
f86702cc 4020 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4021# endif
44a8e56a 4022 SETi(childpid);
a0d0e21e
LW		 4023 RETURN;
4024#else
0322a713 4025 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4026#endif
4027}
4028
4029PP(pp_system)
4030{
39644a26 4031 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4032 I32 value;
2d8e6c8d 4033 STRLEN n_a;
76ffd3b9 4034 int result;
e7766f89 4035 I32 did_pipes = 0;
a0d0e21e 4036
bbd7eb8a
RD		 4037 if (PL_tainting) {
4038 TAINT_ENV();
4039 while (++MARK <= SP) {
4040 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4041 if (PL_tainted)
bbd7eb8a
RD		 4042 break;
4043 }
4044 MARK = ORIGMARK;
5a445156 4045 TAINT_PROPER("system");
a0d0e21e 4046 }
45bc9206 4047 PERL_FLUSHALL_FOR_CHILD;
273b0206 4048#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4049 {
eb160463
GS		 4050 Pid_t childpid;
4051 int pp[2];
4052
4053 if (PerlProc_pipe(pp) >= 0)
4054 did_pipes = 1;
4055 while ((childpid = PerlProc_fork()) == -1) {
4056 if (errno != EAGAIN) {
4057 value = -1;
4058 SP = ORIGMARK;
4059 PUSHi(value);
4060 if (did_pipes) {
4061 PerlLIO_close(pp[0]);
4062 PerlLIO_close(pp[1]);
4063 }
4064 RETURN;
4065 }
4066 sleep(5);
4067 }
4068 if (childpid > 0) {
4069 Sigsave_t ihand,qhand; /* place to save signals during system() */
4070 int status;
4071
4072 if (did_pipes)
4073 PerlLIO_close(pp[1]);
64ca3a65 4074#ifndef PERL_MICRO
eb160463
GS		 4075 rsignal_save(SIGINT, SIG_IGN, &ihand);
4076 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4077#endif
eb160463
GS		 4078 do {
4079 result = wait4pid(childpid, &status, 0);
4080 } while (result == -1 && errno == EINTR);
64ca3a65 4081#ifndef PERL_MICRO
eb160463
GS		 4082 (void)rsignal_restore(SIGINT, &ihand);
4083 (void)rsignal_restore(SIGQUIT, &qhand);
4084#endif
4085 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4086 do_execfree(); /* free any memory child malloced on fork */
4087 SP = ORIGMARK;
4088 if (did_pipes) {
4089 int errkid;
4090 int n = 0, n1;
4091
4092 while (n < sizeof(int)) {
4093 n1 = PerlLIO_read(pp[0],
4094 (void*)(((char*)&errkid)+n),
4095 (sizeof(int)) - n);
4096 if (n1 <= 0)
4097 break;
4098 n += n1;
4099 }
4100 PerlLIO_close(pp[0]);
4101 if (n) { /* Error */
4102 if (n != sizeof(int))
4103 DIE(aTHX_ "panic: kid popen errno read");
4104 errno = errkid; /* Propagate errno from kid */
4105 STATUS_CURRENT = -1;
4106 }
4107 }
4108 PUSHi(STATUS_CURRENT);
4109 RETURN;
4110 }
4111 if (did_pipes) {
4112 PerlLIO_close(pp[0]);
d5a9bfb0 4113#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4114 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4115#endif
eb160463 4116 }
e0a1f643
JH		 4117 if (PL_op->op_flags & OPf_STACKED) {
4118 SV *really = *++MARK;
4119 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4120 }
4121 else if (SP - MARK != 1)
4122 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4123 else {
4124 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4125 }
4126 PerlProc__exit(-1);
d5a9bfb0 4127 }
c3293030 4128#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4129 PL_statusvalue = 0;
4130 result = 0;
911d147d 4131 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4132 SV *really = *++MARK;
54725af6
GS		 4133# ifdef WIN32
4134 value = (I32)do_aspawn(really, MARK, SP);
4135# else
c5be433b 4136 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4137# endif
a0d0e21e 4138 }
54725af6
GS		 4139 else if (SP - MARK != 1) {
4140# ifdef WIN32
4141 value = (I32)do_aspawn(Nullsv, MARK, SP);
4142# else
c5be433b 4143 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4144# endif
4145 }
a0d0e21e 4146 else {
c5be433b 4147 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4148 }
922b1888
GS		 4149 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4150 result = 1;
f86702cc 4151 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4152 do_execfree();
4153 SP = ORIGMARK;
922b1888 4154 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4155#endif /* !FORK or VMS */
4156 RETURN;
4157}
4158
4159PP(pp_exec)
4160{
39644a26 4161 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4162 I32 value;
2d8e6c8d 4163 STRLEN n_a;
a0d0e21e 4164
bbd7eb8a
RD		 4165 if (PL_tainting) {
4166 TAINT_ENV();
4167 while (++MARK <= SP) {
4168 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4169 if (PL_tainted)
bbd7eb8a
RD		 4170 break;
4171 }
4172 MARK = ORIGMARK;
5a445156 4173 TAINT_PROPER("exec");
bbd7eb8a 4174 }
45bc9206 4175 PERL_FLUSHALL_FOR_CHILD;
533c011a 4176 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4177 SV *really = *++MARK;
4178 value = (I32)do_aexec(really, MARK, SP);
4179 }
4180 else if (SP - MARK != 1)
4181#ifdef VMS
4182 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4183#else
092bebab
JH		 4184# ifdef __OPEN_VM
4185 {
c5be433b 4186 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4187 value = 0;
4188 }
4189# else
a0d0e21e 4190 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4191# endif
a0d0e21e
LW		 4192#endif
4193 else {
a0d0e21e 4194#ifdef VMS
2d8e6c8d 4195 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4196#else
092bebab 4197# ifdef __OPEN_VM
c5be433b 4198 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4199 value = 0;
4200# else
2d8e6c8d 4201 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4202# endif
a0d0e21e
LW		 4203#endif
4204 }
146174a9 4205
a0d0e21e
LW		 4206 SP = ORIGMARK;
4207 PUSHi(value);
4208 RETURN;
4209}
4210
4211PP(pp_kill)
4212{
9cad6237 4213#ifdef HAS_KILL
39644a26 4214 dSP; dMARK; dTARGET;
a0d0e21e 4215 I32 value;
533c011a 4216 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4217 SP = MARK;
4218 PUSHi(value);
4219 RETURN;
4220#else
0322a713 4221 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4222#endif
4223}
4224
4225PP(pp_getppid)
4226{
4227#ifdef HAS_GETPPID
39644a26 4228 dSP; dTARGET;
4d76a344
RGS		 4229# ifdef THREADS_HAVE_PIDS
4230 XPUSHi( PL_ppid );
4231# else
a0d0e21e 4232 XPUSHi( getppid() );
4d76a344 4233# endif
a0d0e21e
LW		 4234 RETURN;
4235#else
cea2e8a9 4236 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4237#endif
4238}
4239
4240PP(pp_getpgrp)
4241{
4242#ifdef HAS_GETPGRP
39644a26 4243 dSP; dTARGET;
d8a83dd3 4244 Pid_t pid;
9853a804 4245 Pid_t pgrp;
a0d0e21e
LW		 4246
4247 if (MAXARG < 1)
4248 pid = 0;
4249 else
4250 pid = SvIVx(POPs);
c3293030 4251#ifdef BSD_GETPGRP
9853a804 4252 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4253#else
146174a9 4254 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4255 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4256 pgrp = getpgrp();
a0d0e21e 4257#endif
9853a804 4258 XPUSHi(pgrp);
a0d0e21e
LW		 4259 RETURN;
4260#else
cea2e8a9 4261 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4262#endif
4263}
4264
4265PP(pp_setpgrp)
4266{
4267#ifdef HAS_SETPGRP
39644a26 4268 dSP; dTARGET;
d8a83dd3
JH		 4269 Pid_t pgrp;
4270 Pid_t pid;
a0d0e21e
LW		 4271 if (MAXARG < 2) {
4272 pgrp = 0;
4273 pid = 0;
4274 }
4275 else {
4276 pgrp = POPi;
4277 pid = TOPi;
4278 }
4279
4280 TAINT_PROPER("setpgrp");
c3293030
IZ		 4281#ifdef BSD_SETPGRP
4282 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4283#else
146174a9
CB		 4284 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4285 || (pid != 0 && pid != PerlProc_getpid()))
4286 {
4287 DIE(aTHX_ "setpgrp can't take arguments");
4288 }
a0d0e21e
LW		 4289 SETi( setpgrp() >= 0 );
4290#endif /* USE_BSDPGRP */
4291 RETURN;
4292#else
cea2e8a9 4293 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4294#endif
4295}
4296
4297PP(pp_getpriority)
4298{
a0d0e21e 4299#ifdef HAS_GETPRIORITY
9cad6237 4300 dSP; dTARGET;
d05c1ba0
JH		 4301 int who = POPi;
4302 int which = TOPi;
a0d0e21e
LW		 4303 SETi( getpriority(which, who) );
4304 RETURN;
4305#else
cea2e8a9 4306 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4307#endif
4308}
4309
4310PP(pp_setpriority)
4311{
a0d0e21e 4312#ifdef HAS_SETPRIORITY
9cad6237 4313 dSP; dTARGET;
d05c1ba0
JH		 4314 int niceval = POPi;
4315 int who = POPi;
4316 int which = TOPi;
a0d0e21e
LW		 4317 TAINT_PROPER("setpriority");
4318 SETi( setpriority(which, who, niceval) >= 0 );
4319 RETURN;
4320#else
cea2e8a9 4321 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4322#endif
4323}
4324
4325/* Time calls. */
4326
4327PP(pp_time)
4328{
39644a26 4329 dSP; dTARGET;
cbdc8872 4330#ifdef BIG_TIME
4331 XPUSHn( time(Null(Time_t*)) );
4332#else
a0d0e21e 4333 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4334#endif
a0d0e21e
LW		 4335 RETURN;
4336}
4337
a0d0e21e
LW		 4338PP(pp_tms)
4339{
9cad6237 4340#ifdef HAS_TIMES
39644a26 4341 dSP;
a0d0e21e 4342 EXTEND(SP, 4);
a0d0e21e 4343#ifndef VMS
3280af22 4344 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4345#else
6b88bc9c 4346 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4347 /* struct tms, though same data */
4348 /* is returned. */
a0d0e21e
LW		 4349#endif
4350
5311654c 4351 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4352 if (GIMME == G_ARRAY) {
5311654c
JH		 4353 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4354 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4355 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4356 }
4357 RETURN;
9cad6237
JH		 4358#else
4359 DIE(aTHX_ "times not implemented");
55497cff 4360#endif /* HAS_TIMES */
a0d0e21e
LW		 4361}
4362
4363PP(pp_localtime)
4364{
cea2e8a9 4365 return pp_gmtime();
a0d0e21e
LW		 4366}
4367
4368PP(pp_gmtime)
4369{
39644a26 4370 dSP;
a0d0e21e
LW		 4371 Time_t when;
4372 struct tm *tmbuf;
4373 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4374 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4375 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4376
4377 if (MAXARG < 1)
4378 (void)time(&when);
4379 else
cbdc8872 4380#ifdef BIG_TIME
4381 when = (Time_t)SvNVx(POPs);
4382#else
a0d0e21e 4383 when = (Time_t)SvIVx(POPs);
cbdc8872 4384#endif
a0d0e21e 4385
533c011a 4386 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4387 tmbuf = localtime(&when);
4388 else
4389 tmbuf = gmtime(&when);
4390
a0d0e21e 4391 if (GIMME != G_ARRAY) {
46fc3d4c 4392 SV *tsv;
9a5ff6d9
AB		 4393 EXTEND(SP, 1);
4394 EXTEND_MORTAL(1);
a0d0e21e
LW		 4395 if (!tmbuf)
4396 RETPUSHUNDEF;
be28567c 4397 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4398 dayname[tmbuf->tm_wday],
4399 monname[tmbuf->tm_mon],
be28567c
GS		 4400 tmbuf->tm_mday,
4401 tmbuf->tm_hour,
4402 tmbuf->tm_min,
4403 tmbuf->tm_sec,
4404 tmbuf->tm_year + 1900);
46fc3d4c 4405 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4406 }
4407 else if (tmbuf) {
9a5ff6d9
AB		 4408 EXTEND(SP, 9);
4409 EXTEND_MORTAL(9);
4410 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4411 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4412 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4413 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4414 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4415 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4416 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4417 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4418 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4419 }
4420 RETURN;
4421}
4422
4423PP(pp_alarm)
4424{
9cad6237 4425#ifdef HAS_ALARM
39644a26 4426 dSP; dTARGET;
a0d0e21e 4427 int anum;
a0d0e21e
LW		 4428 anum = POPi;
4429 anum = alarm((unsigned int)anum);
4430 EXTEND(SP, 1);
4431 if (anum < 0)
4432 RETPUSHUNDEF;
c6419e06 4433 PUSHi(anum);
a0d0e21e
LW		 4434 RETURN;
4435#else
0322a713 4436 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4437#endif
4438}
4439
4440PP(pp_sleep)
4441{
39644a26 4442 dSP; dTARGET;
a0d0e21e
LW		 4443 I32 duration;
4444 Time_t lasttime;
4445 Time_t when;
4446
4447 (void)time(&lasttime);
4448 if (MAXARG < 1)
76e3520e 4449 PerlProc_pause();
a0d0e21e
LW		 4450 else {
4451 duration = POPi;
76e3520e 4452 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4453 }
4454 (void)time(&when);
4455 XPUSHi(when - lasttime);
4456 RETURN;
4457}
4458
4459/* Shared memory. */
4460
4461PP(pp_shmget)
4462{
cea2e8a9 4463 return pp_semget();
a0d0e21e
LW		 4464}
4465
4466PP(pp_shmctl)
4467{
cea2e8a9 4468 return pp_semctl();
a0d0e21e
LW		 4469}
4470
4471PP(pp_shmread)
4472{
cea2e8a9 4473 return pp_shmwrite();
a0d0e21e
LW		 4474}
4475
4476PP(pp_shmwrite)
4477{
4478#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4479 dSP; dMARK; dTARGET;
533c011a 4480 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4481 SP = MARK;
4482 PUSHi(value);
4483 RETURN;
4484#else
cea2e8a9 4485 return pp_semget();
a0d0e21e
LW		 4486#endif
4487}
4488
4489/* Message passing. */
4490
4491PP(pp_msgget)
4492{
cea2e8a9 4493 return pp_semget();
a0d0e21e
LW		 4494}
4495
4496PP(pp_msgctl)
4497{
cea2e8a9 4498 return pp_semctl();
a0d0e21e
LW		 4499}
4500
4501PP(pp_msgsnd)
4502{
4503#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4504 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4505 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4506 SP = MARK;
4507 PUSHi(value);
4508 RETURN;
4509#else
cea2e8a9 4510 return pp_semget();
a0d0e21e
LW		 4511#endif
4512}
4513
4514PP(pp_msgrcv)
4515{
4516#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4517 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4518 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4519 SP = MARK;
4520 PUSHi(value);
4521 RETURN;
4522#else
cea2e8a9 4523 return pp_semget();
a0d0e21e
LW		 4524#endif
4525}
4526
4527/* Semaphores. */
4528
4529PP(pp_semget)
4530{
4531#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4532 dSP; dMARK; dTARGET;
533c011a 4533 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4534 SP = MARK;
4535 if (anum == -1)
4536 RETPUSHUNDEF;
4537 PUSHi(anum);
4538 RETURN;
4539#else
cea2e8a9 4540 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4541#endif
4542}
4543
4544PP(pp_semctl)
4545{
4546#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4547 dSP; dMARK; dTARGET;
533c011a 4548 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4549 SP = MARK;
4550 if (anum == -1)
4551 RETSETUNDEF;
4552 if (anum != 0) {
4553 PUSHi(anum);
4554 }
4555 else {
8903cb82 4556 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4557 }
4558 RETURN;
4559#else
cea2e8a9 4560 return pp_semget();
a0d0e21e
LW		 4561#endif
4562}
4563
4564PP(pp_semop)
4565{
4566#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4567 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4568 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4569 SP = MARK;
4570 PUSHi(value);
4571 RETURN;
4572#else
cea2e8a9 4573 return pp_semget();
a0d0e21e
LW		 4574#endif
4575}
4576
4577/* Get system info. */
4578
4579PP(pp_ghbyname)
4580{
693762b4 4581#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4582 return pp_ghostent();
a0d0e21e 4583#else
cea2e8a9 4584 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4585#endif
4586}
4587
4588PP(pp_ghbyaddr)
4589{
693762b4 4590#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4591 return pp_ghostent();
a0d0e21e 4592#else
cea2e8a9 4593 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4594#endif
4595}
4596
4597PP(pp_ghostent)
4598{
693762b4 4599#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4600 dSP;
533c011a 4601 I32 which = PL_op->op_type;
a0d0e21e
LW		 4602 register char **elem;
4603 register SV *sv;
dc45a647 4604#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4605 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4606 struct hostent *gethostbyname(Netdb_name_t);
4607 struct hostent *gethostent(void);
a0d0e21e
LW		 4608#endif
4609 struct hostent *hent;
4610 unsigned long len;
2d8e6c8d 4611 STRLEN n_a;
a0d0e21e
LW		 4612
4613 EXTEND(SP, 10);
edd309b7 4614 if (which == OP_GHBYNAME) {
dc45a647 4615#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4616 char* name = POPpbytex;
4617 hent = PerlSock_gethostbyname(name);
dc45a647 4618#else
cea2e8a9 4619 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4620#endif
edd309b7 4621 }
a0d0e21e 4622 else if (which == OP_GHBYADDR) {
dc45a647 4623#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4624 int addrtype = POPi;
748a9306 4625 SV *addrsv = POPs;
a0d0e21e 4626 STRLEN addrlen;
595ae481 4627 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4628
4599a1de 4629 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4630#else
cea2e8a9 4631 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4632#endif
a0d0e21e
LW		 4633 }
4634 else
4635#ifdef HAS_GETHOSTENT
6ad3d225 4636 hent = PerlSock_gethostent();
a0d0e21e 4637#else
cea2e8a9 4638 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4639#endif
4640
4641#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4642 if (!hent) {
4643#ifdef USE_REENTRANT_API
4644# ifdef USE_GETHOSTENT_ERRNO
4645 h_errno = PL_reentrant_buffer->_gethostent_errno;
4646# endif
4647#endif
4648 STATUS_NATIVE_SET(h_errno);
4649 }
a0d0e21e
LW		 4650#endif
4651
4652 if (GIMME != G_ARRAY) {
4653 PUSHs(sv = sv_newmortal());
4654 if (hent) {
4655 if (which == OP_GHBYNAME) {
fd0af264 4656 if (hent->h_addr)
4657 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4658 }
4659 else
4660 sv_setpv(sv, (char*)hent->h_name);
4661 }
4662 RETURN;
4663 }
4664
4665 if (hent) {
3280af22 4666 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4667 sv_setpv(sv, (char*)hent->h_name);
3280af22 4668 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4669 for (elem = hent->h_aliases; elem && *elem; elem++) {
4670 sv_catpv(sv, *elem);
4671 if (elem[1])
4672 sv_catpvn(sv, " ", 1);
4673 }
3280af22 4674 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4675 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4676 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4677 len = hent->h_length;
1e422769 4678 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4679#ifdef h_addr
4680 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4681 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4682 sv_setpvn(sv, *elem, len);
4683 }
4684#else
6b88bc9c 4685 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4686 if (hent->h_addr)
4687 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4688#endif /* h_addr */
4689 }
4690 RETURN;
4691#else
cea2e8a9 4692 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4693#endif
4694}
4695
4696PP(pp_gnbyname)
4697{
693762b4 4698#ifdef HAS_GETNETBYNAME
cea2e8a9 4699 return pp_gnetent();
a0d0e21e 4700#else
cea2e8a9 4701 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4702#endif
4703}
4704
4705PP(pp_gnbyaddr)
4706{
693762b4 4707#ifdef HAS_GETNETBYADDR
cea2e8a9 4708 return pp_gnetent();
a0d0e21e 4709#else
cea2e8a9 4710 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4711#endif
4712}
4713
4714PP(pp_gnetent)
4715{
693762b4 4716#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4717 dSP;
533c011a 4718 I32 which = PL_op->op_type;
a0d0e21e
LW		 4719 register char **elem;
4720 register SV *sv;
dc45a647 4721#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4722 struct netent *getnetbyaddr(Netdb_net_t, int);
4723 struct netent *getnetbyname(Netdb_name_t);
4724 struct netent *getnetent(void);
8ac85365 4725#endif
a0d0e21e 4726 struct netent *nent;
2d8e6c8d 4727 STRLEN n_a;
a0d0e21e 4728
edd309b7 4729 if (which == OP_GNBYNAME){
dc45a647 4730#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4731 char *name = POPpbytex;
4732 nent = PerlSock_getnetbyname(name);
dc45a647 4733#else
cea2e8a9 4734 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4735#endif
edd309b7 4736 }
a0d0e21e 4737 else if (which == OP_GNBYADDR) {
dc45a647 4738#ifdef HAS_GETNETBYADDR
a0d0e21e 4739 int addrtype = POPi;
3bb7c1b4 4740 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4741 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4742#else
cea2e8a9 4743 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4744#endif
a0d0e21e
LW		 4745 }
4746 else
dc45a647 4747#ifdef HAS_GETNETENT
76e3520e 4748 nent = PerlSock_getnetent();
dc45a647 4749#else
cea2e8a9 4750 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4751#endif
a0d0e21e 4752
10bc17b6
JH		 4753#ifdef HOST_NOT_FOUND
4754 if (!nent) {
4755#ifdef USE_REENTRANT_API
4756# ifdef USE_GETNETENT_ERRNO
4757 h_errno = PL_reentrant_buffer->_getnetent_errno;
4758# endif
4759#endif
4760 STATUS_NATIVE_SET(h_errno);
4761 }
4762#endif
4763
a0d0e21e
LW		 4764 EXTEND(SP, 4);
4765 if (GIMME != G_ARRAY) {
4766 PUSHs(sv = sv_newmortal());
4767 if (nent) {
4768 if (which == OP_GNBYNAME)
1e422769 4769 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4770 else
4771 sv_setpv(sv, nent->n_name);
4772 }
4773 RETURN;
4774 }
4775
4776 if (nent) {
3280af22 4777 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4778 sv_setpv(sv, nent->n_name);
3280af22 4779 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4780 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4781 sv_catpv(sv, *elem);
4782 if (elem[1])
4783 sv_catpvn(sv, " ", 1);
4784 }
3280af22 4785 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4786 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4787 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4788 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4789 }
4790
4791 RETURN;
4792#else
cea2e8a9 4793 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4794#endif
4795}
4796
4797PP(pp_gpbyname)
4798{
693762b4 4799#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4800 return pp_gprotoent();
a0d0e21e 4801#else
cea2e8a9 4802 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4803#endif
4804}
4805
4806PP(pp_gpbynumber)
4807{
693762b4 4808#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4809 return pp_gprotoent();
a0d0e21e 4810#else
cea2e8a9 4811 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4812#endif
4813}
4814
4815PP(pp_gprotoent)
4816{
693762b4 4817#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4818 dSP;
533c011a 4819 I32 which = PL_op->op_type;
a0d0e21e 4820 register char **elem;
301e8125 4821 register SV *sv;
dc45a647 4822#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4823 struct protoent *getprotobyname(Netdb_name_t);
4824 struct protoent *getprotobynumber(int);
4825 struct protoent *getprotoent(void);
8ac85365 4826#endif
a0d0e21e 4827 struct protoent *pent;
2d8e6c8d 4828 STRLEN n_a;
a0d0e21e 4829
edd309b7 4830 if (which == OP_GPBYNAME) {
e5c9fcd0 4831#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4832 char* name = POPpbytex;
4833 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4834#else
cea2e8a9 4835 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4836#endif
edd309b7
JH		 4837 }
4838 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4839#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4840 int number = POPi;
4841 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4842#else
edd309b7 4843 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4844#endif
edd309b7 4845 }
a0d0e21e 4846 else
e5c9fcd0 4847#ifdef HAS_GETPROTOENT
6ad3d225 4848 pent = PerlSock_getprotoent();
e5c9fcd0 4849#else
cea2e8a9 4850 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4851#endif
a0d0e21e
LW		 4852
4853 EXTEND(SP, 3);
4854 if (GIMME != G_ARRAY) {
4855 PUSHs(sv = sv_newmortal());
4856 if (pent) {
4857 if (which == OP_GPBYNAME)
1e422769 4858 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4859 else
4860 sv_setpv(sv, pent->p_name);
4861 }
4862 RETURN;
4863 }
4864
4865 if (pent) {
3280af22 4866 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4867 sv_setpv(sv, pent->p_name);
3280af22 4868 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4869 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4870 sv_catpv(sv, *elem);
4871 if (elem[1])
4872 sv_catpvn(sv, " ", 1);
4873 }
3280af22 4874 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4875 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4876 }
4877
4878 RETURN;
4879#else
cea2e8a9 4880 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4881#endif
4882}
4883
4884PP(pp_gsbyname)
4885{
9ec75305 4886#ifdef HAS_GETSERVBYNAME
cea2e8a9 4887 return pp_gservent();
a0d0e21e 4888#else
cea2e8a9 4889 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4890#endif
4891}
4892
4893PP(pp_gsbyport)
4894{
9ec75305 4895#ifdef HAS_GETSERVBYPORT
cea2e8a9 4896 return pp_gservent();
a0d0e21e 4897#else
cea2e8a9 4898 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4899#endif
4900}
4901
4902PP(pp_gservent)
4903{
693762b4 4904#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4905 dSP;
533c011a 4906 I32 which = PL_op->op_type;
a0d0e21e
LW		 4907 register char **elem;
4908 register SV *sv;
dc45a647 4909#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4910 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4911 struct servent *getservbyport(int, Netdb_name_t);
4912 struct servent *getservent(void);
8ac85365 4913#endif
a0d0e21e 4914 struct servent *sent;
2d8e6c8d 4915 STRLEN n_a;
a0d0e21e
LW		 4916
4917 if (which == OP_GSBYNAME) {
dc45a647 4918#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4919 char *proto = POPpbytex;
4920 char *name = POPpbytex;
a0d0e21e
LW		 4921
4922 if (proto && !*proto)
4923 proto = Nullch;
4924
6ad3d225 4925 sent = PerlSock_getservbyname(name, proto);
dc45a647 4926#else
cea2e8a9 4927 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4928#endif
a0d0e21e
LW		 4929 }
4930 else if (which == OP_GSBYPORT) {
dc45a647 4931#ifdef HAS_GETSERVBYPORT
42e0c139 4932 char *proto = POPpbytex;
eb160463 4933 unsigned short port = (unsigned short)POPu;
a0d0e21e 4934
2b872cca
SR		 4935 if (proto && !*proto)
4936 proto = Nullch;
4937
36477c24 4938#ifdef HAS_HTONS
6ad3d225 4939 port = PerlSock_htons(port);
36477c24 4940#endif
6ad3d225 4941 sent = PerlSock_getservbyport(port, proto);
dc45a647 4942#else
cea2e8a9 4943 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4944#endif
a0d0e21e
LW		 4945 }
4946 else
e5c9fcd0 4947#ifdef HAS_GETSERVENT
6ad3d225 4948 sent = PerlSock_getservent();
e5c9fcd0 4949#else
cea2e8a9 4950 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4951#endif
a0d0e21e
LW		 4952
4953 EXTEND(SP, 4);
4954 if (GIMME != G_ARRAY) {
4955 PUSHs(sv = sv_newmortal());
4956 if (sent) {
4957 if (which == OP_GSBYNAME) {
4958#ifdef HAS_NTOHS
6ad3d225 4959 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4960#else
1e422769 4961 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4962#endif
4963 }
4964 else
4965 sv_setpv(sv, sent->s_name);
4966 }
4967 RETURN;
4968 }
4969
4970 if (sent) {
3280af22 4971 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4972 sv_setpv(sv, sent->s_name);
3280af22 4973 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4974 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4975 sv_catpv(sv, *elem);
4976 if (elem[1])
4977 sv_catpvn(sv, " ", 1);
4978 }
3280af22 4979 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4980#ifdef HAS_NTOHS
76e3520e 4981 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4982#else
1e422769 4983 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 4984#endif
3280af22 4985 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4986 sv_setpv(sv, sent->s_proto);
4987 }
4988
4989 RETURN;
4990#else
cea2e8a9 4991 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 4992#endif
4993}
4994
4995PP(pp_shostent)
4996{
693762b4 4997#ifdef HAS_SETHOSTENT
9cad6237 4998 dSP;
76e3520e 4999 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5000 RETSETYES;
5001#else
cea2e8a9 5002 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5003#endif
5004}
5005
5006PP(pp_snetent)
5007{
693762b4 5008#ifdef HAS_SETNETENT
9cad6237 5009 dSP;
76e3520e 5010 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5011 RETSETYES;
5012#else
cea2e8a9 5013 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5014#endif
5015}
5016
5017PP(pp_sprotoent)
5018{
693762b4 5019#ifdef HAS_SETPROTOENT
9cad6237 5020 dSP;
76e3520e 5021 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5022 RETSETYES;
5023#else
cea2e8a9 5024 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5025#endif
5026}
5027
5028PP(pp_sservent)
5029{
693762b4 5030#ifdef HAS_SETSERVENT
9cad6237 5031 dSP;
76e3520e 5032 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5033 RETSETYES;
5034#else
cea2e8a9 5035 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5036#endif
5037}
5038
5039PP(pp_ehostent)
5040{
693762b4 5041#ifdef HAS_ENDHOSTENT
9cad6237 5042 dSP;
76e3520e 5043 PerlSock_endhostent();
924508f0 5044 EXTEND(SP,1);
a0d0e21e
LW		 5045 RETPUSHYES;
5046#else
cea2e8a9 5047 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5048#endif
5049}
5050
5051PP(pp_enetent)
5052{
693762b4 5053#ifdef HAS_ENDNETENT
9cad6237 5054 dSP;
76e3520e 5055 PerlSock_endnetent();
924508f0 5056 EXTEND(SP,1);
a0d0e21e
LW		 5057 RETPUSHYES;
5058#else
cea2e8a9 5059 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5060#endif
5061}
5062
5063PP(pp_eprotoent)
5064{
693762b4 5065#ifdef HAS_ENDPROTOENT
9cad6237 5066 dSP;
76e3520e 5067 PerlSock_endprotoent();
924508f0 5068 EXTEND(SP,1);
a0d0e21e
LW		 5069 RETPUSHYES;
5070#else
cea2e8a9 5071 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5072#endif
5073}
5074
5075PP(pp_eservent)
5076{
693762b4 5077#ifdef HAS_ENDSERVENT
9cad6237 5078 dSP;
76e3520e 5079 PerlSock_endservent();
924508f0 5080 EXTEND(SP,1);
a0d0e21e
LW		 5081 RETPUSHYES;
5082#else
cea2e8a9 5083 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5084#endif
5085}
5086
5087PP(pp_gpwnam)
5088{
5089#ifdef HAS_PASSWD
cea2e8a9 5090 return pp_gpwent();
a0d0e21e 5091#else
cea2e8a9 5092 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5093#endif
5094}
5095
5096PP(pp_gpwuid)
5097{
5098#ifdef HAS_PASSWD
cea2e8a9 5099 return pp_gpwent();
a0d0e21e 5100#else
cea2e8a9 5101 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5102#endif
5103}
5104
5105PP(pp_gpwent)
5106{
0994c4d0 5107#ifdef HAS_PASSWD
9cad6237 5108 dSP;
533c011a 5109 I32 which = PL_op->op_type;
a0d0e21e 5110 register SV *sv;
2d8e6c8d 5111 STRLEN n_a;
e3aefe8d 5112 struct passwd *pwent = NULL;
301e8125 5113 /*
bcf53261
JH		 5114 * We currently support only the SysV getsp* shadow password interface.
5115 * The interface is declared in <shadow.h> and often one needs to link
5116 * with -lsecurity or some such.
5117 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5118 * (and SCO?)
5119 *
5120 * AIX getpwnam() is clever enough to return the encrypted password
5121 * only if the caller (euid?) is root.
5122 *
5123 * There are at least two other shadow password APIs. Many platforms
5124 * seem to contain more than one interface for accessing the shadow
5125 * password databases, possibly for compatibility reasons.
3813c136 5126 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5127 * are much more complicated, but also very similar to each other.
5128 *
5129 * <sys/types.h>
5130 * <sys/security.h>
5131 * <prot.h>
5132 * struct pr_passwd *getprpw*();
5133 * The password is in
3813c136
JH		 5134 * char getprpw*(...).ufld.fd_encrypt[]
5135 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5136 *
5137 * <sys/types.h>
5138 * <sys/security.h>
5139 * <prot.h>
5140 * struct es_passwd *getespw*();
5141 * The password is in
5142 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5143 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5144 *
3813c136 5145 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5146 *
5147 * In HP-UX for getprpw*() the manual page claims that one should include
5148 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5149 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5150 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5151 *
5152 * Note that <sys/security.h> is already probed for, but currently
5153 * it is only included in special cases.
301e8125 5154 *
bcf53261
JH		 5155 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5156 * be preferred interface, even though also the getprpw*() interface
5157 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5158 * One also needs to call set_auth_parameters() in main() before
5159 * doing anything else, whether one is using getespw*() or getprpw*().
5160 *
5161 * Note that accessing the shadow databases can be magnitudes
5162 * slower than accessing the standard databases.
bcf53261
JH		 5163 *
5164 * --jhi
5165 */
a0d0e21e 5166
e3aefe8d
JH		 5167 switch (which) {
5168 case OP_GPWNAM:
edd309b7
JH		 5169 {
5170 char* name = POPpbytex;
5171 pwent = getpwnam(name);
5172 }
5173 break;
e3aefe8d 5174 case OP_GPWUID:
edd309b7
JH		 5175 {
5176 Uid_t uid = POPi;
5177 pwent = getpwuid(uid);
5178 }
e3aefe8d
JH		 5179 break;
5180 case OP_GPWENT:
1883634f 5181# ifdef HAS_GETPWENT
e3aefe8d 5182 pwent = getpwent();
faea9016
IRC		 5183#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5184 if (pwent) pwent = getpwnam(pwent->pw_name);
5185#endif
1883634f 5186# else
a45d1c96 5187 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5188# endif
e3aefe8d
JH		 5189 break;
5190 }
8c0bfa08 5191
a0d0e21e
LW		 5192 EXTEND(SP, 10);
5193 if (GIMME != G_ARRAY) {
5194 PUSHs(sv = sv_newmortal());
5195 if (pwent) {
5196 if (which == OP_GPWNAM)
1883634f 5197# if Uid_t_sign <= 0
1e422769 5198 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5199# else
23dcd6c8 5200 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5201# endif
a0d0e21e
LW		 5202 else
5203 sv_setpv(sv, pwent->pw_name);
5204 }
5205 RETURN;
5206 }
5207
5208 if (pwent) {
3280af22 5209 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5210 sv_setpv(sv, pwent->pw_name);
6ee623d5 5211
3280af22 5212 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5213 SvPOK_off(sv);
5214 /* If we have getspnam(), we try to dig up the shadow
5215 * password. If we are underprivileged, the shadow
5216 * interface will set the errno to EACCES or similar,
5217 * and return a null pointer. If this happens, we will
5218 * use the dummy password (usually "*" or "x") from the
5219 * standard password database.
5220 *
5221 * In theory we could skip the shadow call completely
5222 * if euid != 0 but in practice we cannot know which
5223 * security measures are guarding the shadow databases
5224 * on a random platform.
5225 *
5226 * Resist the urge to use additional shadow interfaces.
5227 * Divert the urge to writing an extension instead.
5228 *
5229 * --jhi */
e3aefe8d 5230# ifdef HAS_GETSPNAM
3813c136
JH		 5231 {
5232 struct spwd *spwent;
5233 int saverrno; /* Save and restore errno so that
5234 * underprivileged attempts seem
5235 * to have never made the unsccessful
5236 * attempt to retrieve the shadow password. */
5237
5238 saverrno = errno;
5239 spwent = getspnam(pwent->pw_name);
5240 errno = saverrno;
5241 if (spwent && spwent->sp_pwdp)
5242 sv_setpv(sv, spwent->sp_pwdp);
5243 }
f1066039 5244# endif
e020c87d 5245# ifdef PWPASSWD
3813c136
JH		 5246 if (!SvPOK(sv)) /* Use the standard password, then. */
5247 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5248# endif
3813c136 5249
1883634f 5250# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5251 /* passwd is tainted because user himself can diddle with it.
5252 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5253 SvTAINTED_on(sv);
1883634f 5254# endif
6ee623d5 5255
3280af22 5256 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5257# if Uid_t_sign <= 0
1e422769 5258 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5259# else
23dcd6c8 5260 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5261# endif
6ee623d5 5262
3280af22 5263 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5264# if Uid_t_sign <= 0
1e422769 5265 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5266# else
23dcd6c8 5267 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5268# endif
3813c136
JH		 5269 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5270 * because of the poor interface of the Perl getpw*(),
5271 * not because there's some standard/convention saying so.
5272 * A better interface would have been to return a hash,
5273 * but we are accursed by our history, alas. --jhi. */
3280af22 5274 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5275# ifdef PWCHANGE
1e422769 5276 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5277# else
1883634f
JH		 5278# ifdef PWQUOTA
5279 sv_setiv(sv, (IV)pwent->pw_quota);
5280# else
a1757be1 5281# ifdef PWAGE
a0d0e21e 5282 sv_setpv(sv, pwent->pw_age);
a1757be1 5283# endif
6ee623d5
GS		 5284# endif
5285# endif
6ee623d5 5286
3813c136
JH		 5287 /* pw_class and pw_comment are mutually exclusive--.
5288 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5289 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5290# ifdef PWCLASS
a0d0e21e 5291 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5292# else
5293# ifdef PWCOMMENT
a0d0e21e 5294 sv_setpv(sv, pwent->pw_comment);
1883634f 5295# endif
6ee623d5 5296# endif
6ee623d5 5297
3280af22 5298 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5299# ifdef PWGECOS
a0d0e21e 5300 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5301# endif
5302# ifndef INCOMPLETE_TAINTS
d2719217 5303 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5304 SvTAINTED_on(sv);
1883634f 5305# endif
6ee623d5 5306
3280af22 5307 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5308 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5309
3280af22 5310 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5311 sv_setpv(sv, pwent->pw_shell);
1883634f 5312# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5313 /* pw_shell is tainted because user himself can diddle with it. */
5314 SvTAINTED_on(sv);
1883634f 5315# endif
6ee623d5 5316
1883634f 5317# ifdef PWEXPIRE
6b88bc9c 5318 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5319 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5320# endif
a0d0e21e
LW		 5321 }
5322 RETURN;
5323#else
cea2e8a9 5324 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5325#endif
5326}
5327
5328PP(pp_spwent)
5329{
d493b042 5330#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5331 dSP;
a0d0e21e
LW		 5332 setpwent();
5333 RETPUSHYES;
5334#else
cea2e8a9 5335 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5336#endif
5337}
5338
5339PP(pp_epwent)
5340{
28e8609d 5341#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5342 dSP;
a0d0e21e
LW		 5343 endpwent();
5344 RETPUSHYES;
5345#else
cea2e8a9 5346 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5347#endif
5348}
5349
5350PP(pp_ggrnam)
5351{
5352#ifdef HAS_GROUP
cea2e8a9 5353 return pp_ggrent();
a0d0e21e 5354#else
cea2e8a9 5355 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5356#endif
5357}
5358
5359PP(pp_ggrgid)
5360{
5361#ifdef HAS_GROUP
cea2e8a9 5362 return pp_ggrent();
a0d0e21e 5363#else
cea2e8a9 5364 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5365#endif
5366}
5367
5368PP(pp_ggrent)
5369{
0994c4d0 5370#ifdef HAS_GROUP
9cad6237 5371 dSP;
533c011a 5372 I32 which = PL_op->op_type;
a0d0e21e
LW		 5373 register char **elem;
5374 register SV *sv;
5375 struct group *grent;
2d8e6c8d 5376 STRLEN n_a;
a0d0e21e 5377
edd309b7
JH		 5378 if (which == OP_GGRNAM) {
5379 char* name = POPpbytex;
5380 grent = (struct group *)getgrnam(name);
5381 }
5382 else if (which == OP_GGRGID) {
5383 Gid_t gid = POPi;
5384 grent = (struct group *)getgrgid(gid);
5385 }
a0d0e21e 5386 else
0994c4d0 5387#ifdef HAS_GETGRENT
a0d0e21e 5388 grent = (struct group *)getgrent();
0994c4d0
JH		 5389#else
5390 DIE(aTHX_ PL_no_func, "getgrent");
5391#endif
a0d0e21e
LW		 5392
5393 EXTEND(SP, 4);
5394 if (GIMME != G_ARRAY) {
5395 PUSHs(sv = sv_newmortal());
5396 if (grent) {
5397 if (which == OP_GGRNAM)
1e422769 5398 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5399 else
5400 sv_setpv(sv, grent->gr_name);
5401 }
5402 RETURN;
5403 }
5404
5405 if (grent) {
3280af22 5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5407 sv_setpv(sv, grent->gr_name);
28e8609d 5408
3280af22 5409 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5410#ifdef GRPASSWD
a0d0e21e 5411 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5412#endif
5413
3280af22 5414 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5415 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5416
5b56e7c5 5417#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5418 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5419 /* In UNICOS/mk (_CRAYMPP) the multithreading
5420 * versions (getgrnam_r, getgrgid_r)
5421 * seem to return an illegal pointer
5422 * as the group members list, gr_mem.
5423 * getgrent() doesn't even have a _r version
5424 * but the gr_mem is poisonous anyway.
5425 * So yes, you cannot get the list of group
5426 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5427 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5428 sv_catpv(sv, *elem);
5429 if (elem[1])
5430 sv_catpvn(sv, " ", 1);
5431 }
3d7e8424 5432#endif
a0d0e21e
LW		 5433 }
5434
5435 RETURN;
5436#else
cea2e8a9 5437 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5438#endif
5439}
5440
5441PP(pp_sgrent)
5442{
28e8609d 5443#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5444 dSP;
a0d0e21e
LW		 5445 setgrent();
5446 RETPUSHYES;
5447#else
cea2e8a9 5448 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5449#endif
5450}
5451
5452PP(pp_egrent)
5453{
28e8609d 5454#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5455 dSP;
a0d0e21e
LW		 5456 endgrent();
5457 RETPUSHYES;
5458#else
cea2e8a9 5459 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5460#endif
5461}
5462
5463PP(pp_getlogin)
5464{
a0d0e21e 5465#ifdef HAS_GETLOGIN
9cad6237 5466 dSP; dTARGET;
a0d0e21e
LW		 5467 char *tmps;
5468 EXTEND(SP, 1);
76e3520e 5469 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5470 RETPUSHUNDEF;
5471 PUSHp(tmps, strlen(tmps));
5472 RETURN;
5473#else
cea2e8a9 5474 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5475#endif
5476}
5477
5478/* Miscellaneous. */
5479
5480PP(pp_syscall)
5481{
d2719217 5482#ifdef HAS_SYSCALL
39644a26 5483 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5484 register I32 items = SP - MARK;
5485 unsigned long a[20];
5486 register I32 i = 0;
5487 I32 retval = -1;
2d8e6c8d 5488 STRLEN n_a;
a0d0e21e 5489
3280af22 5490 if (PL_tainting) {
a0d0e21e 5491 while (++MARK <= SP) {
bbce6d69 5492 if (SvTAINTED(*MARK)) {
5493 TAINT;
5494 break;
5495 }
a0d0e21e
LW		 5496 }
5497 MARK = ORIGMARK;
5498 TAINT_PROPER("syscall");
5499 }
5500
5501 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5502 * or where sizeof(long) != sizeof(char*). But such machines will
5503 * not likely have syscall implemented either, so who cares?
5504 */
5505 while (++MARK <= SP) {
5506 if (SvNIOK(*MARK) || !i)
5507 a[i++] = SvIV(*MARK);
3280af22 5508 else if (*MARK == &PL_sv_undef)
748a9306 5509 a[i++] = 0;
301e8125 5510 else
2d8e6c8d 5511 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5512 if (i > 15)
5513 break;
5514 }
5515 switch (items) {
5516 default:
cea2e8a9 5517 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5518 case 0:
cea2e8a9 5519 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5520 case 1:
5521 retval = syscall(a[0]);
5522 break;
5523 case 2:
5524 retval = syscall(a[0],a[1]);
5525 break;
5526 case 3:
5527 retval = syscall(a[0],a[1],a[2]);
5528 break;
5529 case 4:
5530 retval = syscall(a[0],a[1],a[2],a[3]);
5531 break;
5532 case 5:
5533 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5534 break;
5535 case 6:
5536 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5537 break;
5538 case 7:
5539 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5540 break;
5541 case 8:
5542 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5543 break;
5544#ifdef atarist
5545 case 9:
5546 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5547 break;
5548 case 10:
5549 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5550 break;
5551 case 11:
5552 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5553 a[10]);
5554 break;
5555 case 12:
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5557 a[10],a[11]);
5558 break;
5559 case 13:
5560 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5561 a[10],a[11],a[12]);
5562 break;
5563 case 14:
5564 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5565 a[10],a[11],a[12],a[13]);
5566 break;
5567#endif /* atarist */
5568 }
5569 SP = ORIGMARK;
5570 PUSHi(retval);
5571 RETURN;
5572#else
cea2e8a9 5573 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5574#endif
5575}
5576
ff68c719 5577#ifdef FCNTL_EMULATE_FLOCK
301e8125 5578
ff68c719 5579/* XXX Emulate flock() with fcntl().
5580 What's really needed is a good file locking module.
5581*/
5582
cea2e8a9
GS		 5583static int
5584fcntl_emulate_flock(int fd, int operation)
ff68c719 5585{
5586 struct flock flock;
301e8125 5587
ff68c719 5588 switch (operation & ~LOCK_NB) {
5589 case LOCK_SH:
5590 flock.l_type = F_RDLCK;
5591 break;
5592 case LOCK_EX:
5593 flock.l_type = F_WRLCK;
5594 break;
5595 case LOCK_UN:
5596 flock.l_type = F_UNLCK;
5597 break;
5598 default:
5599 errno = EINVAL;
5600 return -1;
5601 }
5602 flock.l_whence = SEEK_SET;
d9b3e12d 5603 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5604
ff68c719 5605 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5606}
5607
5608#endif /* FCNTL_EMULATE_FLOCK */
5609
5610#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5611
5612/* XXX Emulate flock() with lockf(). This is just to increase
5613 portability of scripts. The calls are not completely
5614 interchangeable. What's really needed is a good file
5615 locking module.
5616*/
5617
76c32331 5618/* The lockf() constants might have been defined in <unistd.h>.
5619 Unfortunately, <unistd.h> causes troubles on some mixed
5620 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5621
5622 Further, the lockf() constants aren't POSIX, so they might not be
5623 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5624 just stick in the SVID values and be done with it. Sigh.
5625*/
5626
5627# ifndef F_ULOCK
5628# define F_ULOCK 0 /* Unlock a previously locked region */
5629# endif
5630# ifndef F_LOCK
5631# define F_LOCK 1 /* Lock a region for exclusive use */
5632# endif
5633# ifndef F_TLOCK
5634# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5635# endif
5636# ifndef F_TEST
5637# define F_TEST 3 /* Test a region for other processes locks */
5638# endif
5639
cea2e8a9
GS		 5640static int
5641lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5642{
5643 int i;
84902520
TB		 5644 int save_errno;
5645 Off_t pos;
5646
5647 /* flock locks entire file so for lockf we need to do the same */
5648 save_errno = errno;
6ad3d225 5649 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5650 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5651 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5652 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5653 errno = save_errno;
5654
16d20bd9
AD		 5655 switch (operation) {
5656
5657 /* LOCK_SH - get a shared lock */
5658 case LOCK_SH:
5659 /* LOCK_EX - get an exclusive lock */
5660 case LOCK_EX:
5661 i = lockf (fd, F_LOCK, 0);
5662 break;
5663
5664 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5665 case LOCK_SH|LOCK_NB:
5666 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5667 case LOCK_EX|LOCK_NB:
5668 i = lockf (fd, F_TLOCK, 0);
5669 if (i == -1)
5670 if ((errno == EAGAIN) || (errno == EACCES))
5671 errno = EWOULDBLOCK;
5672 break;
5673
ff68c719 5674 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5675 case LOCK_UN:
ff68c719 5676 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5677 i = lockf (fd, F_ULOCK, 0);
5678 break;
5679
5680 /* Default - can't decipher operation */
5681 default:
5682 i = -1;
5683 errno = EINVAL;
5684 break;
5685 }
84902520
TB		 5686
5687 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5688 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5689
16d20bd9
AD		 5690 return (i);
5691}
ff68c719 5692
5693#endif /* LOCKF_EMULATE_FLOCK */
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