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Re: [PATCH] [perl #18175] B::Concise,-exec doesn't handle // operator well
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
be3c0a43 3 * Copyright (c) 1991-2002, Larry Wall
a0d0e21e
LW		 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10/*
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
15 */
16
17#include "EXTERN.h"
864dbfa3 18#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 19#include "perl.h"
20
f1066039
JH		 21#ifdef I_SHADOW
22/* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 24 * The API is from SysV.
25 *
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
28 *
29 * --jhi */
30# ifdef __hpux__
c529f79d 31/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 33# undef MAXINT
34# endif
35# include <shadow.h>
8c0bfa08
PB		 36#endif
37
301e8125
NIS		 38#ifdef HAS_SYSCALL
39#ifdef __cplusplus
8ac85365
NIS		 40extern "C" int syscall(unsigned long,...);
41#endif
42#endif
43
76c32331 44#ifdef I_SYS_WAIT
45# include <sys/wait.h>
46#endif
47
48#ifdef I_SYS_RESOURCE
49# include <sys/resource.h>
16d20bd9 50#endif
a0d0e21e 51
2986a63f
JH		 52#ifdef NETWARE
53NETDB_DEFINE_CONTEXT
54#endif
55
a0d0e21e 56#ifdef HAS_SELECT
1e743fda
JH		 57# ifdef I_SYS_SELECT
58# include <sys/select.h>
59# endif
a0d0e21e 60#endif
a0d0e21e 61
dc45a647
MB		 62/* XXX Configure test needed.
63 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 64 applications, see "extern int errno in perl.h". Creating such
65 a test requires taking into account the differences between
66 compiling multithreaded and singlethreaded ($ccflags et al).
67 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 68*/
cb50131a 69#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 70extern int h_errno;
71#endif
72
73#ifdef HAS_PASSWD
74# ifdef I_PWD
75# include <pwd.h>
76# else
fd8cd3a3 77# if !defined(VMS)
20ce7b12
GS		 78 struct passwd *getpwnam (char *);
79 struct passwd *getpwuid (Uid_t);
fd8cd3a3 80# endif
a0d0e21e 81# endif
28e8609d 82# ifdef HAS_GETPWENT
10bc17b6 83#ifndef getpwent
20ce7b12 84 struct passwd *getpwent (void);
c2a8f790
JH		 85#elif defined (VMS) && defined (my_getpwent)
86 struct passwd *Perl_my_getpwent (void);
10bc17b6 87#endif
28e8609d 88# endif
a0d0e21e
LW		 89#endif
90
91#ifdef HAS_GROUP
92# ifdef I_GRP
93# include <grp.h>
94# else
20ce7b12
GS		 95 struct group *getgrnam (char *);
96 struct group *getgrgid (Gid_t);
a0d0e21e 97# endif
28e8609d 98# ifdef HAS_GETGRENT
10bc17b6 99#ifndef getgrent
20ce7b12 100 struct group *getgrent (void);
10bc17b6 101#endif
28e8609d 102# endif
a0d0e21e
LW		 103#endif
104
105#ifdef I_UTIME
3730b96e 106# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 107# include <sys/utime.h>
108# else
109# include <utime.h>
110# endif
a0d0e21e 111#endif
a0d0e21e 112
cbdc8872 113#ifdef HAS_CHSIZE
cd52b7b2 114# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
115# undef my_chsize
116# endif
6ad3d225 117# define my_chsize PerlLIO_chsize
cbdc8872 118#endif
119
ff68c719 120#ifdef HAS_FLOCK
121# define FLOCK flock
122#else /* no flock() */
123
36477c24 124 /* fcntl.h might not have been included, even if it exists, because
125 the current Configure only sets I_FCNTL if it's needed to pick up
126 the *_OK constants. Make sure it has been included before testing
127 the fcntl() locking constants. */
128# if defined(HAS_FCNTL) && !defined(I_FCNTL)
129# include <fcntl.h>
130# endif
131
9d9004a9 132# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 133# define FLOCK fcntl_emulate_flock
134# define FCNTL_EMULATE_FLOCK
135# else /* no flock() or fcntl(F_SETLK,...) */
136# ifdef HAS_LOCKF
137# define FLOCK lockf_emulate_flock
138# define LOCKF_EMULATE_FLOCK
139# endif /* lockf */
140# endif /* no flock() or fcntl(F_SETLK,...) */
141
142# ifdef FLOCK
20ce7b12 143 static int FLOCK (int, int);
ff68c719 144
145 /*
146 * These are the flock() constants. Since this sytems doesn't have
147 * flock(), the values of the constants are probably not available.
148 */
149# ifndef LOCK_SH
150# define LOCK_SH 1
151# endif
152# ifndef LOCK_EX
153# define LOCK_EX 2
154# endif
155# ifndef LOCK_NB
156# define LOCK_NB 4
157# endif
158# ifndef LOCK_UN
159# define LOCK_UN 8
160# endif
161# endif /* emulating flock() */
162
163#endif /* no flock() */
55497cff 164
85ab1d1d
JH		 165#define ZBTLEN 10
166static char zero_but_true[ZBTLEN + 1] = "0 but true";
167
5ff3f7a4
GS		 168#if defined(I_SYS_ACCESS) && !defined(R_OK)
169# include <sys/access.h>
170#endif
171
c529f79d
CB		 172#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
173# define FD_CLOEXEC 1 /* NeXT needs this */
174#endif
175
a4af207c
JH		 176#include "reentr.h"
177
5ff3f7a4
GS		 178#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
179#undef PERL_EFF_ACCESS_W_OK
180#undef PERL_EFF_ACCESS_X_OK
181
182/* F_OK unused: if stat() cannot find it... */
183
184#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 185 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 186# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
187# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
188# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
189#endif
190
191#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 192# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 193# include <sys/security.h>
194# endif
c955f117
JH		 195# ifdef ACC_SELF
196 /* HP SecureWare */
197# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
198# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
199# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
200# else
201 /* SCO */
202# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
203# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
204# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
205# endif
5ff3f7a4
GS		 206#endif
207
208#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 209 /* AIX */
5ff3f7a4
GS		 210# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
211# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
212# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
213#endif
214
327c3667
GS		 215#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
216 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
217 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 218/* The Hard Way. */
327c3667 219STATIC int
7f4774ae 220S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 221{
5ff3f7a4
GS		 222 Uid_t ruid = getuid();
223 Uid_t euid = geteuid();
224 Gid_t rgid = getgid();
225 Gid_t egid = getegid();
226 int res;
227
146174a9 228 LOCK_CRED_MUTEX;
5ff3f7a4 229#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 230 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 231#else
232#ifdef HAS_SETREUID
233 if (setreuid(euid, ruid))
234#else
235#ifdef HAS_SETRESUID
236 if (setresuid(euid, ruid, (Uid_t)-1))
237#endif
238#endif
cea2e8a9 239 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 240#endif
241
242#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 243 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 244#else
245#ifdef HAS_SETREGID
246 if (setregid(egid, rgid))
247#else
248#ifdef HAS_SETRESGID
249 if (setresgid(egid, rgid, (Gid_t)-1))
250#endif
251#endif
cea2e8a9 252 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 253#endif
254
255 res = access(path, mode);
256
257#ifdef HAS_SETREUID
258 if (setreuid(ruid, euid))
259#else
260#ifdef HAS_SETRESUID
261 if (setresuid(ruid, euid, (Uid_t)-1))
262#endif
263#endif
cea2e8a9 264 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 265
266#ifdef HAS_SETREGID
267 if (setregid(rgid, egid))
268#else
269#ifdef HAS_SETRESGID
270 if (setresgid(rgid, egid, (Gid_t)-1))
271#endif
272#endif
cea2e8a9 273 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 274 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 275
276 return res;
277}
278# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
279# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
280# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
281#endif
282
283#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 284/* With it or without it: anyway you get a warning: either that
285 it is unused, or it is declared static and never defined.
286 */
327c3667 287STATIC int
7f4774ae 288S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 289{
cea2e8a9 290 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 291 /*NOTREACHED*/
292 return -1;
293}
294#endif
295
a0d0e21e
LW		 296PP(pp_backtick)
297{
39644a26 298 dSP; dTARGET;
760ac839 299 PerlIO *fp;
2d8e6c8d
GS		 300 STRLEN n_a;
301 char *tmps = POPpx;
54310121 302 I32 gimme = GIMME_V;
16fe6d59 303 char *mode = "r";
54310121 304
a0d0e21e 305 TAINT_PROPER("``");
16fe6d59
GS		 306 if (PL_op->op_private & OPpOPEN_IN_RAW)
307 mode = "rb";
308 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
309 mode = "rt";
310 fp = PerlProc_popen(tmps, mode);
a0d0e21e 311 if (fp) {
ac27b0f5
NIS		 312 char *type = NULL;
313 if (PL_curcop->cop_io) {
314 type = SvPV_nolen(PL_curcop->cop_io);
315 }
ac27b0f5
NIS		 316 if (type && *type)
317 PerlIO_apply_layers(aTHX_ fp,mode,type);
318
54310121 319 if (gimme == G_VOID) {
96827780
MB		 320 char tmpbuf[256];
321 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 322 /*SUPPRESS 530*/
323 ;
324 }
325 else if (gimme == G_SCALAR) {
fa326138
RG		 326 SV *oldrs = PL_rs;
327 PL_rs = &PL_sv_undef;
aa689395 328 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 329 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
330 /*SUPPRESS 530*/
331 ;
fa326138 332 PL_rs = oldrs;
a0d0e21e 333 XPUSHs(TARG);
aa689395 334 SvTAINTED_on(TARG);
a0d0e21e
LW		 335 }
336 else {
337 SV *sv;
338
339 for (;;) {
8d6dde3e 340 sv = NEWSV(56, 79);
a0d0e21e
LW		 341 if (sv_gets(sv, fp, 0) == Nullch) {
342 SvREFCNT_dec(sv);
343 break;
344 }
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvLEN_set(sv, SvCUR(sv)+1);
348 Renew(SvPVX(sv), SvLEN(sv), char);
349 }
aa689395 350 SvTAINTED_on(sv);
a0d0e21e
LW		 351 }
352 }
6ad3d225 353 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 354 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 355 }
356 else {
f86702cc 357 STATUS_NATIVE_SET(-1);
54310121 358 if (gimme == G_SCALAR)
a0d0e21e
LW		 359 RETPUSHUNDEF;
360 }
361
362 RETURN;
363}
364
365PP(pp_glob)
366{
367 OP *result;
f5284f61
IZ		 368 tryAMAGICunTARGET(iter, -1);
369
71686f12
GS		 370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
373
a0d0e21e 374 ENTER;
a0d0e21e 375
c90c0ff4 376#ifndef VMS
3280af22 377 if (PL_tainting) {
7bac28a0 378 /*
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
381 */
382 TAINT;
22c35a8c 383 taint_proper(PL_no_security, "glob");
7bac28a0 384 }
c90c0ff4 385#endif /* !VMS */
7bac28a0 386
3280af22
NIS		 387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 389
3280af22 390 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 391 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 392#ifndef DOSISH
393#ifndef CSH
6b88bc9c 394 *SvPVX(PL_rs) = '\n';
a0d0e21e 395#endif /* !CSH */
55497cff 396#endif /* !DOSISH */
c07a80fd 397
a0d0e21e
LW		 398 result = do_readline();
399 LEAVE;
400 return result;
401}
402
a0d0e21e
LW		 403PP(pp_rcatline)
404{
146174a9 405 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 406 return do_readline();
407}
408
409PP(pp_warn)
410{
39644a26 411 dSP; dMARK;
06bf62c7 412 SV *tmpsv;
a0d0e21e 413 char *tmps;
06bf62c7 414 STRLEN len;
a0d0e21e
LW		 415 if (SP - MARK != 1) {
416 dTARGET;
3280af22 417 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 418 tmpsv = TARG;
a0d0e21e
LW		 419 SP = MARK + 1;
420 }
421 else {
06bf62c7 422 tmpsv = TOPs;
a0d0e21e 423 }
06bf62c7
GS		 424 tmps = SvPV(tmpsv, len);
425 if (!tmps || !len) {
4e6ea2c3
GS		 426 SV *error = ERRSV;
427 (void)SvUPGRADE(error, SVt_PV);
428 if (SvPOK(error) && SvCUR(error))
429 sv_catpv(error, "\t...caught");
06bf62c7
GS		 430 tmpsv = error;
431 tmps = SvPV(tmpsv, len);
a0d0e21e 432 }
06bf62c7
GS		 433 if (!tmps || !len)
434 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
435
cb50131a 436 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 437 RETSETYES;
438}
439
440PP(pp_die)
441{
39644a26 442 dSP; dMARK;
a0d0e21e 443 char *tmps;
06bf62c7
GS		 444 SV *tmpsv;
445 STRLEN len;
446 bool multiarg = 0;
96e176bf
CL		 447#ifdef VMS
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
449#endif
a0d0e21e
LW		 450 if (SP - MARK != 1) {
451 dTARGET;
3280af22 452 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 453 tmpsv = TARG;
454 tmps = SvPV(tmpsv, len);
455 multiarg = 1;
a0d0e21e
LW		 456 SP = MARK + 1;
457 }
458 else {
4e6ea2c3 459 tmpsv = TOPs;
bf12611a 460 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 461 }
06bf62c7 462 if (!tmps || !len) {
4e6ea2c3
GS		 463 SV *error = ERRSV;
464 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 465 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
466 if (!multiarg)
4e6ea2c3 467 SvSetSV(error,tmpsv);
06bf62c7 468 else if (sv_isobject(error)) {
05423cc9
GS		 469 HV *stash = SvSTASH(SvRV(error));
470 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
471 if (gv) {
146174a9 472 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 473 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 474 EXTEND(SP, 3);
475 PUSHMARK(SP);
476 PUSHs(error);
477 PUSHs(file);
478 PUSHs(line);
479 PUTBACK;
864dbfa3
GS		 480 call_sv((SV*)GvCV(gv),
481 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 482 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 483 }
484 }
b3fe4827 485 DIE(aTHX_ Nullformat);
4e6ea2c3
GS		 486 }
487 else {
488 if (SvPOK(error) && SvCUR(error))
489 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 490 tmpsv = error;
491 tmps = SvPV(tmpsv, len);
4e6ea2c3 492 }
a0d0e21e 493 }
06bf62c7
GS		 494 if (!tmps || !len)
495 tmpsv = sv_2mortal(newSVpvn("Died", 4));
496
cb50131a 497 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 498}
499
500/* I/O. */
501
502PP(pp_open)
503{
39644a26 504 dSP;
a567e93b
NIS		 505 dMARK; dORIGMARK;
506 dTARGET;
a0d0e21e
LW		 507 GV *gv;
508 SV *sv;
5b468f54 509 IO *io;
a0d0e21e
LW		 510 char *tmps;
511 STRLEN len;
4592e6ca 512 MAGIC *mg;
a567e93b 513 bool ok;
a0d0e21e 514
a567e93b 515 gv = (GV *)*++MARK;
5f05dabc 516 if (!isGV(gv))
cea2e8a9 517 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 518 if ((io = GvIOp(gv)))
36477c24 519 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 520
5b468f54 521 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
5b468f54 524 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 525 PUSHMARK(MARK);
4592e6ca
NIS		 526 PUTBACK;
527 ENTER;
864dbfa3 528 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 529 LEAVE;
530 SPAGAIN;
531 RETURN;
532 }
533
a567e93b
NIS		 534 if (MARK < SP) {
535 sv = *++MARK;
536 }
537 else {
538 sv = GvSV(gv);
539 }
540
a0d0e21e 541 tmps = SvPV(sv, len);
a567e93b
NIS		 542 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
543 SP = ORIGMARK;
544 if (ok)
3280af22
NIS		 545 PUSHi( (I32)PL_forkprocess );
546 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 547 PUSHi(0);
548 else
549 RETPUSHUNDEF;
550 RETURN;
551}
552
553PP(pp_close)
554{
39644a26 555 dSP;
a0d0e21e 556 GV *gv;
5b468f54 557 IO *io;
1d603a67 558 MAGIC *mg;
a0d0e21e
LW		 559
560 if (MAXARG == 0)
3280af22 561 gv = PL_defoutgv;
a0d0e21e
LW		 562 else
563 gv = (GV*)POPs;
1d603a67 564
5b468f54
AMS		 565 if (gv && (io = GvIO(gv))
566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
567 {
1d603a67 568 PUSHMARK(SP);
5b468f54 569 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 570 PUTBACK;
571 ENTER;
864dbfa3 572 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 573 LEAVE;
574 SPAGAIN;
575 RETURN;
576 }
a0d0e21e 577 EXTEND(SP, 1);
54310121 578 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 579 RETURN;
580}
581
582PP(pp_pipe_op)
583{
a0d0e21e 584#ifdef HAS_PIPE
9cad6237 585 dSP;
a0d0e21e
LW		 586 GV *rgv;
587 GV *wgv;
588 register IO *rstio;
589 register IO *wstio;
590 int fd[2];
591
592 wgv = (GV*)POPs;
593 rgv = (GV*)POPs;
594
595 if (!rgv || !wgv)
596 goto badexit;
597
4633a7c4 598 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 599 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 600 rstio = GvIOn(rgv);
601 wstio = GvIOn(wgv);
602
603 if (IoIFP(rstio))
604 do_close(rgv, FALSE);
605 if (IoIFP(wstio))
606 do_close(wgv, FALSE);
607
6ad3d225 608 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 609 goto badexit;
610
760ac839
LW		 611 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
612 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
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);
50f846a7
SC		 737 RETPUSHUNDEF;
738 }
a0d0e21e 739
40d98b49 740 PUTBACK;
60382766 741 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49
JH		 742 (discp) ? SvPV_nolen(discp) : Nullch)) {
743 SPAGAIN;
a0d0e21e 744 RETPUSHYES;
40d98b49
JH		 745 }
746 else {
747 SPAGAIN;
a0d0e21e 748 RETPUSHUNDEF;
40d98b49 749 }
a0d0e21e
LW		 750}
751
752PP(pp_tie)
753{
39644a26 754 dSP;
e336de0d 755 dMARK;
a0d0e21e
LW		 756 SV *varsv;
757 HV* stash;
758 GV *gv;
a0d0e21e 759 SV *sv;
3280af22 760 I32 markoff = MARK - PL_stack_base;
a0d0e21e 761 char *methname;
14befaf4 762 int how = PERL_MAGIC_tied;
e336de0d 763 U32 items;
2d8e6c8d 764 STRLEN n_a;
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))) {
cea2e8a9 811 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 812 methname, SvPV(*MARK,n_a));
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],
1076 tbuf);
1077 for (i = 1; i <= 3; i++) {
1078 if (fd_sets[i]) {
1079 sv = SP[i];
1080#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1081 s = SvPVX(sv);
1082 for (offset = 0; offset < growsize; offset += masksize) {
1083 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1084 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1085 }
1086 Safefree(fd_sets[i]);
1087#endif
1088 SvSETMAGIC(sv);
1089 }
1090 }
1091
1092 PUSHi(nfound);
1093 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1094 value = (NV)(timebuf.tv_sec) +
1095 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1096 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1097 sv_setnv(sv, value);
1098 }
1099 RETURN;
1100#else
cea2e8a9 1101 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1102#endif
1103}
1104
4633a7c4 1105void
864dbfa3 1106Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1107{
1108 if (gv)
1109 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1110 if (PL_defoutgv)
1111 SvREFCNT_dec(PL_defoutgv);
1112 PL_defoutgv = gv;
4633a7c4
LW		 1113}
1114
a0d0e21e
LW		 1115PP(pp_select)
1116{
39644a26 1117 dSP; dTARGET;
4633a7c4
LW		 1118 GV *newdefout, *egv;
1119 HV *hv;
1120
533c011a 1121 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1122
3280af22 1123 egv = GvEGV(PL_defoutgv);
4633a7c4 1124 if (!egv)
3280af22 1125 egv = PL_defoutgv;
4633a7c4
LW		 1126 hv = GvSTASH(egv);
1127 if (! hv)
3280af22 1128 XPUSHs(&PL_sv_undef);
4633a7c4 1129 else {
cbdc8872 1130 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1131 if (gvp && *gvp == egv) {
f7aaccc2 1132 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1133 XPUSHTARG;
1134 }
1135 else {
1136 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1137 }
4633a7c4
LW		 1138 }
1139
1140 if (newdefout) {
ded8aa31
GS		 1141 if (!GvIO(newdefout))
1142 gv_IOadd(newdefout);
4633a7c4
LW		 1143 setdefout(newdefout);
1144 }
1145
a0d0e21e
LW		 1146 RETURN;
1147}
1148
1149PP(pp_getc)
1150{
39644a26 1151 dSP; dTARGET;
a0d0e21e 1152 GV *gv;
90133b69 1153 IO *io = NULL;
2ae324a7 1154 MAGIC *mg;
a0d0e21e 1155
32da55ab 1156 if (MAXARG == 0)
3280af22 1157 gv = PL_stdingv;
a0d0e21e
LW		 1158 else
1159 gv = (GV*)POPs;
2ae324a7 1160
5b468f54
AMS		 1161 if (gv && (io = GvIO(gv))
1162 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1163 {
54310121 1164 I32 gimme = GIMME_V;
2ae324a7 1165 PUSHMARK(SP);
5b468f54 1166 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1167 PUTBACK;
1168 ENTER;
864dbfa3 1169 call_method("GETC", gimme);
2ae324a7 1170 LEAVE;
1171 SPAGAIN;
54310121 1172 if (gimme == G_SCALAR)
1173 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1174 RETURN;
1175 }
90133b69 1176 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1177 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1178 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1179 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1180 RETPUSHUNDEF;
90133b69 1181 }
bbce6d69 1182 TAINT;
a0d0e21e 1183 sv_setpv(TARG, " ");
9bc64814 1184 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1185 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1186 /* Find out how many bytes the char needs */
1187 Size_t len = UTF8SKIP(SvPVX(TARG));
1188 if (len > 1) {
1189 SvGROW(TARG,len+1);
1190 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1191 SvCUR_set(TARG,1+len);
1192 }
1193 SvUTF8_on(TARG);
1194 }
a0d0e21e
LW		 1195 PUSHTARG;
1196 RETURN;
1197}
1198
1199PP(pp_read)
1200{
cea2e8a9 1201 return pp_sysread();
a0d0e21e
LW		 1202}
1203
76e3520e 1204STATIC OP *
cea2e8a9 1205S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1206{
c09156bb 1207 register PERL_CONTEXT *cx;
54310121 1208 I32 gimme = GIMME_V;
a0d0e21e
LW		 1209
1210 ENTER;
1211 SAVETMPS;
1212
1213 push_return(retop);
146174a9 1214 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1215 PUSHFORMAT(cx);
dd2155a4 1216 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1217
4633a7c4 1218 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1219 return CvSTART(cv);
1220}
1221
1222PP(pp_enterwrite)
1223{
39644a26 1224 dSP;
a0d0e21e
LW		 1225 register GV *gv;
1226 register IO *io;
1227 GV *fgv;
1228 CV *cv;
1229
1230 if (MAXARG == 0)
3280af22 1231 gv = PL_defoutgv;
a0d0e21e
LW		 1232 else {
1233 gv = (GV*)POPs;
1234 if (!gv)
3280af22 1235 gv = PL_defoutgv;
a0d0e21e
LW		 1236 }
1237 EXTEND(SP, 1);
1238 io = GvIO(gv);
1239 if (!io) {
1240 RETPUSHNO;
1241 }
1242 if (IoFMT_GV(io))
1243 fgv = IoFMT_GV(io);
1244 else
1245 fgv = gv;
1246
1247 cv = GvFORM(fgv);
a0d0e21e 1248 if (!cv) {
2dd78f96 1249 char *name = NULL;
a0d0e21e 1250 if (fgv) {
748a9306 1251 SV *tmpsv = sv_newmortal();
43693395 1252 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1253 name = SvPV_nolen(tmpsv);
a0d0e21e 1254 }
2dd78f96
JH		 1255 if (name && *name)
1256 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1257 DIE(aTHX_ "Not a format reference");
a0d0e21e 1258 }
44a8e56a 1259 if (CvCLONE(cv))
1260 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1261
44a8e56a 1262 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1263 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1264}
1265
1266PP(pp_leavewrite)
1267{
39644a26 1268 dSP;
a0d0e21e
LW		 1269 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1270 register IO *io = GvIOp(gv);
760ac839
LW		 1271 PerlIO *ofp = IoOFP(io);
1272 PerlIO *fp;
a0d0e21e
LW		 1273 SV **newsp;
1274 I32 gimme;
c09156bb 1275 register PERL_CONTEXT *cx;
a0d0e21e 1276
760ac839 1277 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1278 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1279 if (!io || !ofp)
1280 goto forget_top;
3280af22
NIS		 1281 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1282 PL_formtarget != PL_toptarget)
a0d0e21e 1283 {
4633a7c4
LW		 1284 GV *fgv;
1285 CV *cv;
a0d0e21e
LW		 1286 if (!IoTOP_GV(io)) {
1287 GV *topgv;
46fc3d4c 1288 SV *topname;
a0d0e21e
LW		 1289
1290 if (!IoTOP_NAME(io)) {
1291 if (!IoFMT_NAME(io))
1292 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1293 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1294 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1295 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1296 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1297 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1298 else
1299 IoTOP_NAME(io) = savepv("top");
1300 }
1301 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1302 if (!topgv || !GvFORM(topgv)) {
1303 IoLINES_LEFT(io) = 100000000;
1304 goto forget_top;
1305 }
1306 IoTOP_GV(io) = topgv;
1307 }
748a9306
LW		 1308 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1309 I32 lines = IoLINES_LEFT(io);
3280af22 1310 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1311 if (lines <= 0) /* Yow, header didn't even fit!!! */
1312 goto forget_top;
748a9306
LW		 1313 while (lines-- > 0) {
1314 s = strchr(s, '\n');
1315 if (!s)
1316 break;
1317 s++;
1318 }
1319 if (s) {
d75029d0
NIS		 1320 STRLEN save = SvCUR(PL_formtarget);
1321 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1322 do_print(PL_formtarget, ofp);
1323 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1324 sv_chop(PL_formtarget, s);
1325 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1326 }
1327 }
a0d0e21e 1328 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1329 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1330 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1331 IoPAGE(io)++;
3280af22 1332 PL_formtarget = PL_toptarget;
748a9306 1333 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1334 fgv = IoTOP_GV(io);
1335 if (!fgv)
cea2e8a9 1336 DIE(aTHX_ "bad top format reference");
4633a7c4 1337 cv = GvFORM(fgv);
2dd78f96
JH		 1338 {
1339 char *name = NULL;
1340 if (!cv) {
1341 SV *sv = sv_newmortal();
1342 gv_efullname4(sv, fgv, Nullch, FALSE);
1343 name = SvPV_nolen(sv);
1344 }
1345 if (name && *name)
1346 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1347 /* why no:
1348 else
1349 DIE(aTHX_ "Undefined top format called");
1350 ?*/
4633a7c4 1351 }
44a8e56a 1352 if (CvCLONE(cv))
1353 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1354 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1355 }
1356
1357 forget_top:
3280af22 1358 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1359 POPFORMAT(cx);
1360 LEAVE;
1361
1362 fp = IoOFP(io);
1363 if (!fp) {
599cee73 1364 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1365 if (IoIFP(io)) {
2dd78f96
JH		 1366 /* integrate with report_evil_fh()? */
1367 char *name = NULL;
1368 if (isGV(gv)) {
1369 SV* sv = sv_newmortal();
1370 gv_efullname4(sv, gv, Nullch, FALSE);
1371 name = SvPV_nolen(sv);
1372 }
1373 if (name && *name)
9014280d 1374 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1375 "Filehandle %s opened only for input", name);
1376 else
9014280d 1377 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1378 "Filehandle opened only for input");
cb50131a 1379 }
599cee73 1380 else if (ckWARN(WARN_CLOSED))
bc37a18f 1381 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1382 }
3280af22 1383 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1384 }
1385 else {
3280af22 1386 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1387 if (ckWARN(WARN_IO))
9014280d 1388 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1389 }
d75029d0 1390 if (!do_print(PL_formtarget, fp))
3280af22 1391 PUSHs(&PL_sv_no);
a0d0e21e 1392 else {
3280af22
NIS		 1393 FmLINES(PL_formtarget) = 0;
1394 SvCUR_set(PL_formtarget, 0);
1395 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1396 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1397 (void)PerlIO_flush(fp);
3280af22 1398 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1399 }
1400 }
9cbac4c7 1401 /* bad_ofp: */
3280af22 1402 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1403 PUTBACK;
1404 return pop_return();
1405}
1406
1407PP(pp_prtf)
1408{
39644a26 1409 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1410 GV *gv;
1411 IO *io;
760ac839 1412 PerlIO *fp;
26db47c4 1413 SV *sv;
46fc3d4c 1414 MAGIC *mg;
a0d0e21e 1415
533c011a 1416 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1417 gv = (GV*)*++MARK;
1418 else
3280af22 1419 gv = PL_defoutgv;
46fc3d4c 1420
5b468f54
AMS		 1421 if (gv && (io = GvIO(gv))
1422 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1423 {
46fc3d4c 1424 if (MARK == ORIGMARK) {
4352c267 1425 MEXTEND(SP, 1);
46fc3d4c 1426 ++MARK;
1427 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1428 ++SP;
1429 }
1430 PUSHMARK(MARK - 1);
5b468f54 1431 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1432 PUTBACK;
1433 ENTER;
864dbfa3 1434 call_method("PRINTF", G_SCALAR);
46fc3d4c 1435 LEAVE;
1436 SPAGAIN;
1437 MARK = ORIGMARK + 1;
1438 *MARK = *SP;
1439 SP = MARK;
1440 RETURN;
1441 }
1442
26db47c4 1443 sv = NEWSV(0,0);
a0d0e21e 1444 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1446 report_evil_fh(gv, io, PL_op->op_type);
93189314 1447 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1448 goto just_say_no;
1449 }
1450 else if (!(fp = IoOFP(io))) {
599cee73 1451 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1452 /* integrate with report_evil_fh()? */
cb50131a 1453 if (IoIFP(io)) {
2dd78f96
JH		 1454 char *name = NULL;
1455 if (isGV(gv)) {
1456 gv_efullname4(sv, gv, Nullch, FALSE);
1457 name = SvPV_nolen(sv);
1458 }
1459 if (name && *name)
9014280d 1460 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1461 "Filehandle %s opened only for input", name);
1462 else
9014280d 1463 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1464 "Filehandle opened only for input");
cb50131a 1465 }
599cee73 1466 else if (ckWARN(WARN_CLOSED))
bc37a18f 1467 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1468 }
93189314 1469 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1470 goto just_say_no;
1471 }
1472 else {
1473 do_sprintf(sv, SP - MARK, MARK + 1);
1474 if (!do_print(sv, fp))
1475 goto just_say_no;
1476
1477 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1478 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1479 goto just_say_no;
1480 }
1481 SvREFCNT_dec(sv);
1482 SP = ORIGMARK;
3280af22 1483 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1484 RETURN;
1485
1486 just_say_no:
1487 SvREFCNT_dec(sv);
1488 SP = ORIGMARK;
3280af22 1489 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1490 RETURN;
1491}
1492
c07a80fd 1493PP(pp_sysopen)
1494{
39644a26 1495 dSP;
c07a80fd 1496 GV *gv;
c07a80fd 1497 SV *sv;
1498 char *tmps;
1499 STRLEN len;
1500 int mode, perm;
1501
1502 if (MAXARG > 3)
1503 perm = POPi;
1504 else
1505 perm = 0666;
1506 mode = POPi;
1507 sv = POPs;
1508 gv = (GV *)POPs;
1509
4592e6ca
NIS		 1510 /* Need TIEHANDLE method ? */
1511
c07a80fd 1512 tmps = SvPV(sv, len);
1513 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1514 IoLINES(GvIOp(gv)) = 0;
3280af22 1515 PUSHs(&PL_sv_yes);
c07a80fd 1516 }
1517 else {
3280af22 1518 PUSHs(&PL_sv_undef);
c07a80fd 1519 }
1520 RETURN;
1521}
1522
a0d0e21e
LW		 1523PP(pp_sysread)
1524{
39644a26 1525 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1526 int offset;
1527 GV *gv;
1528 IO *io;
1529 char *buffer;
5b54f415 1530 SSize_t length;
eb5c063a 1531 SSize_t count;
1e422769 1532 Sock_size_t bufsize;
748a9306 1533 SV *bufsv;
a0d0e21e 1534 STRLEN blen;
2ae324a7 1535 MAGIC *mg;
eb5c063a
NIS		 1536 int fp_utf8;
1537 Size_t got = 0;
1538 Size_t wanted;
1d636c13 1539 bool charstart = FALSE;
87330c3c
JH		 1540 STRLEN charskip = 0;
1541 STRLEN skip = 0;
a0d0e21e
LW		 1542
1543 gv = (GV*)*++MARK;
5b468f54
AMS		 1544 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1545 && gv && (io = GvIO(gv))
1546 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1547 {
2ae324a7 1548 SV *sv;
1549
1550 PUSHMARK(MARK-1);
5b468f54 1551 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1552 ENTER;
864dbfa3 1553 call_method("READ", G_SCALAR);
2ae324a7 1554 LEAVE;
1555 SPAGAIN;
1556 sv = POPs;
1557 SP = ORIGMARK;
1558 PUSHs(sv);
1559 RETURN;
1560 }
1561
a0d0e21e
LW		 1562 if (!gv)
1563 goto say_undef;
748a9306 1564 bufsv = *++MARK;
ff68c719 1565 if (! SvOK(bufsv))
1566 sv_setpvn(bufsv, "", 0);
a0d0e21e 1567 length = SvIVx(*++MARK);
748a9306 1568 SETERRNO(0,0);
a0d0e21e
LW		 1569 if (MARK < SP)
1570 offset = SvIVx(*++MARK);
1571 else
1572 offset = 0;
1573 io = GvIO(gv);
1574 if (!io || !IoIFP(io))
1575 goto say_undef;
0064a8a9 1576 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1577 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1578 /* UTF8 may not have been set if they are all low bytes */
1579 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1580 }
1581 else {
1582 buffer = SvPV_force(bufsv, blen);
1583 }
1584 if (length < 0)
1585 DIE(aTHX_ "Negative length");
eb5c063a 1586 wanted = length;
7d59b7e4 1587
d0965105
JH		 1588 charstart = TRUE;
1589 charskip = 0;
87330c3c 1590 skip = 0;
d0965105 1591
a0d0e21e 1592#ifdef HAS_SOCKET
533c011a 1593 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1594 char namebuf[MAXPATHLEN];
17a8c7ba 1595#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1596 bufsize = sizeof (struct sockaddr_in);
1597#else
46fc3d4c 1598 bufsize = sizeof namebuf;
490ab354 1599#endif
abf95952
IZ		 1600#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1601 if (bufsize >= 256)
1602 bufsize = 255;
1603#endif
eb160463 1604 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1605 /* 'offset' means 'flags' here */
eb5c063a 1606 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1607 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1608 if (count < 0)
a0d0e21e 1609 RETPUSHUNDEF;
4107cc59
OF		 1610#ifdef EPOC
1611 /* Bogus return without padding */
1612 bufsize = sizeof (struct sockaddr_in);
1613#endif
eb5c063a 1614 SvCUR_set(bufsv, count);
748a9306
LW		 1615 *SvEND(bufsv) = '\0';
1616 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1617 if (fp_utf8)
1618 SvUTF8_on(bufsv);
748a9306 1619 SvSETMAGIC(bufsv);
aac0dd9a 1620 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1621 if (!(IoFLAGS(io) & IOf_UNTAINT))
1622 SvTAINTED_on(bufsv);
a0d0e21e 1623 SP = ORIGMARK;
46fc3d4c 1624 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1625 PUSHs(TARG);
1626 RETURN;
1627 }
1628#else
911d147d 1629 if (PL_op->op_type == OP_RECV)
cea2e8a9 1630 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1631#endif
eb5c063a
NIS		 1632 if (DO_UTF8(bufsv)) {
1633 /* offset adjust in characters not bytes */
1634 blen = sv_len_utf8(bufsv);
7d59b7e4 1635 }
bbce6d69 1636 if (offset < 0) {
eb160463 1637 if (-offset > (int)blen)
cea2e8a9 1638 DIE(aTHX_ "Offset outside string");
bbce6d69 1639 offset += blen;
1640 }
eb5c063a
NIS		 1641 if (DO_UTF8(bufsv)) {
1642 /* convert offset-as-chars to offset-as-bytes */
1643 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1644 }
1645 more_bytes:
cd52b7b2 1646 bufsize = SvCUR(bufsv);
eb160463 1647 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1648 if (offset > bufsize) { /* Zero any newly allocated space */
1649 Zero(buffer+bufsize, offset-bufsize, char);
1650 }
eb5c063a
NIS		 1651 buffer = buffer + offset;
1652
533c011a 1653 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1654#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1655 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1656 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1657 buffer, length, 0);
a7092146
GS		 1658 }
1659 else
1660#endif
1661 {
eb5c063a
NIS		 1662 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1663 buffer, length);
a7092146 1664 }
a0d0e21e
LW		 1665 }
1666 else
1667#ifdef HAS_SOCKET__bad_code_maybe
50952442 1668 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1669 char namebuf[MAXPATHLEN];
490ab354
JH		 1670#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1671 bufsize = sizeof (struct sockaddr_in);
1672#else
46fc3d4c 1673 bufsize = sizeof namebuf;
490ab354 1674#endif
eb5c063a 1675 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1676 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1677 }
1678 else
1679#endif
3b02c43c 1680 {
eb5c063a
NIS		 1681 count = PerlIO_read(IoIFP(io), buffer, length);
1682 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1683 if (count == 0 && PerlIO_error(IoIFP(io)))
1684 count = -1;
3b02c43c 1685 }
eb5c063a 1686 if (count < 0) {
a00b5bd3 1687 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
af8c498a 1688 {
2dd78f96
JH		 1689 /* integrate with report_evil_fh()? */
1690 char *name = NULL;
1691 if (isGV(gv)) {
1692 SV* sv = sv_newmortal();
1693 gv_efullname4(sv, gv, Nullch, FALSE);
1694 name = SvPV_nolen(sv);
1695 }
1696 if (name && *name)
9014280d 1697 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96
JH		 1698 "Filehandle %s opened only for output", name);
1699 else
9014280d 1700 Perl_warner(aTHX_ packWARN(WARN_IO),
2dd78f96 1701 "Filehandle opened only for output");
af8c498a 1702 }
a0d0e21e 1703 goto say_undef;
af8c498a 1704 }
eb5c063a 1705 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1706 *SvEND(bufsv) = '\0';
1707 (void)SvPOK_only(bufsv);
0064a8a9 1708 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1709 /* Look at utf8 we got back and count the characters */
1710 char *bend = buffer + count;
1711 while (buffer < bend) {
d0965105
JH		 1712 if (charstart) {
1713 skip = UTF8SKIP(buffer);
1714 charskip = 0;
1715 }
1716 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1717 /* partial character - try for rest of it */
1718 length = skip - (bend-buffer);
1719 offset = bend - SvPVX(bufsv);
d0965105
JH		 1720 charstart = FALSE;
1721 charskip += count;
eb5c063a
NIS		 1722 goto more_bytes;
1723 }
1724 else {
1725 got++;
1726 buffer += skip;
d0965105
JH		 1727 charstart = TRUE;
1728 charskip = 0;
eb5c063a
NIS		 1729 }
1730 }
1731 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1732 provided amount read (count) was what was requested (length)
1733 */
1734 if (got < wanted && count == length) {
d0965105 1735 length = wanted - got;
eb5c063a
NIS		 1736 offset = bend - SvPVX(bufsv);
1737 goto more_bytes;
1738 }
1739 /* return value is character count */
1740 count = got;
1741 SvUTF8_on(bufsv);
1742 }
748a9306 1743 SvSETMAGIC(bufsv);
aac0dd9a 1744 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1745 if (!(IoFLAGS(io) & IOf_UNTAINT))
1746 SvTAINTED_on(bufsv);
a0d0e21e 1747 SP = ORIGMARK;
eb5c063a 1748 PUSHi(count);
a0d0e21e
LW		 1749 RETURN;
1750
1751 say_undef:
1752 SP = ORIGMARK;
1753 RETPUSHUNDEF;
1754}
1755
1756PP(pp_syswrite)
1757{
39644a26 1758 dSP;
092bebab
JH		 1759 int items = (SP - PL_stack_base) - TOPMARK;
1760 if (items == 2) {
9f089d78 1761 SV *sv;
092bebab 1762 EXTEND(SP, 1);
9f089d78
SB		 1763 sv = sv_2mortal(newSViv(sv_len(*SP)));
1764 PUSHs(sv);
092bebab
JH		 1765 PUTBACK;
1766 }
cea2e8a9 1767 return pp_send();
a0d0e21e
LW		 1768}
1769
1770PP(pp_send)
1771{
39644a26 1772 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1773 GV *gv;
1774 IO *io;
748a9306 1775 SV *bufsv;
a0d0e21e 1776 char *buffer;
8c99d73e
GS		 1777 Size_t length;
1778 SSize_t retval;
a0d0e21e 1779 STRLEN blen;
1d603a67 1780 MAGIC *mg;
a0d0e21e
LW		 1781
1782 gv = (GV*)*++MARK;
14befaf4 1783 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1784 && gv && (io = GvIO(gv))
1785 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1786 {
1d603a67
GB		 1787 SV *sv;
1788
1789 PUSHMARK(MARK-1);
5b468f54 1790 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1791 ENTER;
864dbfa3 1792 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1793 LEAVE;
1794 SPAGAIN;
1795 sv = POPs;
1796 SP = ORIGMARK;
1797 PUSHs(sv);
1798 RETURN;
1799 }
a0d0e21e
LW		 1800 if (!gv)
1801 goto say_undef;
748a9306 1802 bufsv = *++MARK;
8c99d73e 1803#if Size_t_size > IVSIZE
3c001241 1804 length = (Size_t)SvNVx(*++MARK);
146174a9 1805#else
3c001241 1806 length = (Size_t)SvIVx(*++MARK);
146174a9 1807#endif
3c001241 1808 if ((SSize_t)length < 0)
cea2e8a9 1809 DIE(aTHX_ "Negative length");
748a9306 1810 SETERRNO(0,0);
a0d0e21e
LW		 1811 io = GvIO(gv);
1812 if (!io || !IoIFP(io)) {
8c99d73e 1813 retval = -1;
bc37a18f
RG		 1814 if (ckWARN(WARN_CLOSED))
1815 report_evil_fh(gv, io, PL_op->op_type);
7d59b7e4
NIS		 1816 goto say_undef;
1817 }
1818
1819 if (PerlIO_isutf8(IoIFP(io))) {
1820 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1821 }
7d59b7e4
NIS		 1822 else {
1823 if (DO_UTF8(bufsv))
1824 sv_utf8_downgrade(bufsv, FALSE);
1825 buffer = SvPV(bufsv, blen);
1826 }
1827
1828 if (PL_op->op_type == OP_SYSWRITE) {
1829 IV offset;
1830 if (DO_UTF8(bufsv)) {
1831 /* length and offset are in chars */
1832 blen = sv_len_utf8(bufsv);
1833 }
bbce6d69 1834 if (MARK < SP) {
a0d0e21e 1835 offset = SvIVx(*++MARK);
bbce6d69 1836 if (offset < 0) {
eb160463 1837 if (-offset > (IV)blen)
cea2e8a9 1838 DIE(aTHX_ "Offset outside string");
bbce6d69 1839 offset += blen;
eb160463 1840 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1841 DIE(aTHX_ "Offset outside string");
bbce6d69 1842 } else
a0d0e21e
LW		 1843 offset = 0;
1844 if (length > blen - offset)
1845 length = blen - offset;
7d59b7e4 1846 if (DO_UTF8(bufsv)) {
c8d31a35 1847 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1848 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1849 }
1850 else {
1851 buffer = buffer+offset;
1852 }
a7092146 1853#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1854 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1855 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1856 buffer, length, 0);
a7092146
GS		 1857 }
1858 else
1859#endif
1860 {
94e4c244 1861 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1862 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1863 buffer, length);
a7092146 1864 }
a0d0e21e
LW		 1865 }
1866#ifdef HAS_SOCKET
1867 else if (SP > MARK) {
1868 char *sockbuf;
1869 STRLEN mlen;
1870 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1871 /* length is really flags */
8c99d73e
GS		 1872 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1873 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1874 }
1875 else
7d59b7e4 1876 /* length is really flags */
8c99d73e 1877 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1878#else
1879 else
cea2e8a9 1880 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1881#endif
8c99d73e 1882 if (retval < 0)
a0d0e21e
LW		 1883 goto say_undef;
1884 SP = ORIGMARK;
f36eea10
JH		 1885 if (DO_UTF8(bufsv))
1886 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1887#if Size_t_size > IVSIZE
1888 PUSHn(retval);
1889#else
1890 PUSHi(retval);
1891#endif
a0d0e21e
LW		 1892 RETURN;
1893
1894 say_undef:
1895 SP = ORIGMARK;
1896 RETPUSHUNDEF;
1897}
1898
1899PP(pp_recv)
1900{
cea2e8a9 1901 return pp_sysread();
a0d0e21e
LW		 1902}
1903
1904PP(pp_eof)
1905{
39644a26 1906 dSP;
a0d0e21e 1907 GV *gv;
5b468f54 1908 IO *io;
4592e6ca 1909 MAGIC *mg;
a0d0e21e 1910
32da55ab 1911 if (MAXARG == 0) {
146174a9
CB		 1912 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1913 IO *io;
ed2c6b9b 1914 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1915 io = GvIO(gv);
1916 if (io && !IoIFP(io)) {
1917 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1918 IoLINES(io) = 0;
1919 IoFLAGS(io) &= ~IOf_START;
1920 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1921 sv_setpvn(GvSV(gv), "-", 1);
1922 SvSETMAGIC(GvSV(gv));
1923 }
1924 else if (!nextargv(gv))
1925 RETPUSHYES;
1926 }
1927 }
1928 else
1929 gv = PL_last_in_gv; /* eof */
1930 }
a0d0e21e 1931 else
146174a9 1932 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1933
5b468f54
AMS		 1934 if (gv && (io = GvIO(gv))
1935 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1936 {
4592e6ca 1937 PUSHMARK(SP);
5b468f54 1938 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1939 PUTBACK;
1940 ENTER;
864dbfa3 1941 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1942 LEAVE;
1943 SPAGAIN;
1944 RETURN;
1945 }
1946
54310121 1947 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1948 RETURN;
1949}
1950
1951PP(pp_tell)
1952{
39644a26 1953 dSP; dTARGET;
301e8125 1954 GV *gv;
5b468f54 1955 IO *io;
4592e6ca 1956 MAGIC *mg;
a0d0e21e 1957
32da55ab 1958 if (MAXARG == 0)
3280af22 1959 gv = PL_last_in_gv;
a0d0e21e 1960 else
3280af22 1961 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1962
5b468f54
AMS		 1963 if (gv && (io = GvIO(gv))
1964 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1965 {
4592e6ca 1966 PUSHMARK(SP);
5b468f54 1967 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1968 PUTBACK;
1969 ENTER;
864dbfa3 1970 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1971 LEAVE;
1972 SPAGAIN;
1973 RETURN;
1974 }
1975
146174a9
CB		 1976#if LSEEKSIZE > IVSIZE
1977 PUSHn( do_tell(gv) );
1978#else
a0d0e21e 1979 PUSHi( do_tell(gv) );
146174a9 1980#endif
a0d0e21e
LW		 1981 RETURN;
1982}
1983
1984PP(pp_seek)
1985{
cea2e8a9 1986 return pp_sysseek();
137443ea 1987}
1988
1989PP(pp_sysseek)
1990{
39644a26 1991 dSP;
a0d0e21e 1992 GV *gv;
5b468f54 1993 IO *io;
a0d0e21e 1994 int whence = POPi;
146174a9
CB		 1995#if LSEEKSIZE > IVSIZE
1996 Off_t offset = (Off_t)SvNVx(POPs);
1997#else
d9b3e12d 1998 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1999#endif
4592e6ca 2000 MAGIC *mg;
a0d0e21e 2001
3280af22 2002 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2003
5b468f54
AMS		 2004 if (gv && (io = GvIO(gv))
2005 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2006 {
4592e6ca 2007 PUSHMARK(SP);
5b468f54 2008 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2009#if LSEEKSIZE > IVSIZE
2010 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2011#else
b448e4fe 2012 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2013#endif
b448e4fe 2014 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2015 PUTBACK;
2016 ENTER;
864dbfa3 2017 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2018 LEAVE;
2019 SPAGAIN;
2020 RETURN;
2021 }
2022
533c011a 2023 if (PL_op->op_type == OP_SEEK)
8903cb82 2024 PUSHs(boolSV(do_seek(gv, offset, whence)));
2025 else {
b448e4fe
JH		 2026 Off_t sought = do_sysseek(gv, offset, whence);
2027 if (sought < 0)
146174a9
CB		 2028 PUSHs(&PL_sv_undef);
2029 else {
b448e4fe 2030 SV* sv = sought ?
146174a9 2031#if LSEEKSIZE > IVSIZE
b448e4fe 2032 newSVnv((NV)sought)
146174a9 2033#else
b448e4fe 2034 newSViv(sought)
146174a9
CB		 2035#endif
2036 : newSVpvn(zero_but_true, ZBTLEN);
2037 PUSHs(sv_2mortal(sv));
2038 }
8903cb82 2039 }
a0d0e21e
LW		 2040 RETURN;
2041}
2042
2043PP(pp_truncate)
2044{
39644a26 2045 dSP;
8c99d73e
GS		 2046 /* There seems to be no consensus on the length type of truncate()
2047 * and ftruncate(), both off_t and size_t have supporters. In
2048 * general one would think that when using large files, off_t is
2049 * at least as wide as size_t, so using an off_t should be okay. */
2050 /* XXX Configure probe for the length type of *truncate() needed XXX */
2051 Off_t len;
a0d0e21e 2052
25342a55 2053#if Off_t_size > IVSIZE
8c99d73e
GS		 2054 len = (Off_t)POPn;
2055#else
2056 len = (Off_t)POPi;
2057#endif
2058 /* Checking for length < 0 is problematic as the type might or
301e8125 2059 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2060 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2061 SETERRNO(0,0);
5d94fbed 2062#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2063 {
2064 STRLEN n_a;
2065 int result = 1;
2066 GV *tmpgv;
2067
2068 if (PL_op->op_flags & OPf_SPECIAL) {
2069 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2070
2071 do_ftruncate:
2072 TAINT_PROPER("truncate");
2073 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2074 result = 0;
2075 else {
2076 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 2077#ifdef HAS_TRUNCATE
d05c1ba0 2078 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 2079#else
d05c1ba0 2080 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 2081#endif
d05c1ba0
JH		 2082 result = 0;
2083 }
cbdc8872 2084 }
d05c1ba0
JH		 2085 else {
2086 SV *sv = POPs;
2087 char *name;
72f496dc 2088
d05c1ba0
JH		 2089 if (SvTYPE(sv) == SVt_PVGV) {
2090 tmpgv = (GV*)sv; /* *main::FRED for example */
2091 goto do_ftruncate;
2092 }
2093 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2094 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2095 goto do_ftruncate;
2096 }
1e422769 2097
d05c1ba0
JH		 2098 name = SvPV(sv, n_a);
2099 TAINT_PROPER("truncate");
cbdc8872 2100#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2101 if (truncate(name, len) < 0)
2102 result = 0;
cbdc8872 2103#else
d05c1ba0
JH		 2104 {
2105 int tmpfd;
2106
2107 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2108 result = 0;
d05c1ba0
JH		 2109 else {
2110 if (my_chsize(tmpfd, len) < 0)
2111 result = 0;
2112 PerlLIO_close(tmpfd);
2113 }
cbdc8872 2114 }
a0d0e21e 2115#endif
d05c1ba0 2116 }
a0d0e21e 2117
d05c1ba0
JH		 2118 if (result)
2119 RETPUSHYES;
2120 if (!errno)
93189314 2121 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2122 RETPUSHUNDEF;
2123 }
a0d0e21e 2124#else
cea2e8a9 2125 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2126#endif
2127}
2128
2129PP(pp_fcntl)
2130{
cea2e8a9 2131 return pp_ioctl();
a0d0e21e
LW		 2132}
2133
2134PP(pp_ioctl)
2135{
39644a26 2136 dSP; dTARGET;
748a9306 2137 SV *argsv = POPs;
3bb7c1b4 2138 unsigned int func = POPu;
533c011a 2139 int optype = PL_op->op_type;
a0d0e21e 2140 char *s;
324aa91a 2141 IV retval;
a0d0e21e 2142 GV *gv = (GV*)POPs;
c289d2f7 2143 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2144
748a9306 2145 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2146 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2147 report_evil_fh(gv, io, PL_op->op_type);
93189314 2148 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2149 RETPUSHUNDEF;
2150 }
2151
748a9306 2152 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2153 STRLEN len;
324aa91a 2154 STRLEN need;
748a9306 2155 s = SvPV_force(argsv, len);
324aa91a
HF		 2156 need = IOCPARM_LEN(func);
2157 if (len < need) {
2158 s = Sv_Grow(argsv, need + 1);
2159 SvCUR_set(argsv, need);
a0d0e21e
LW		 2160 }
2161
748a9306 2162 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2163 }
2164 else {
748a9306 2165 retval = SvIV(argsv);
c529f79d 2166 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2167 }
2168
2169 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2170
2171 if (optype == OP_IOCTL)
2172#ifdef HAS_IOCTL
76e3520e 2173 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2174#else
cea2e8a9 2175 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2176#endif
2177 else
c214f4ad
WB		 2178#ifndef HAS_FCNTL
2179 DIE(aTHX_ "fcntl is not implemented");
2180#else
55497cff 2181#if defined(OS2) && defined(__EMX__)
760ac839 2182 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2183#else
760ac839 2184 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2185#endif
a0d0e21e 2186
748a9306
LW		 2187 if (SvPOK(argsv)) {
2188 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2189 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2190 OP_NAME(PL_op));
748a9306
LW		 2191 s[SvCUR(argsv)] = 0; /* put our null back */
2192 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2193 }
2194
2195 if (retval == -1)
2196 RETPUSHUNDEF;
2197 if (retval != 0) {
2198 PUSHi(retval);
2199 }
2200 else {
8903cb82 2201 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2202 }
4808266b 2203#endif
c214f4ad 2204 RETURN;
a0d0e21e
LW		 2205}
2206
2207PP(pp_flock)
2208{
9cad6237 2209#ifdef FLOCK
39644a26 2210 dSP; dTARGET;
a0d0e21e
LW		 2211 I32 value;
2212 int argtype;
2213 GV *gv;
bc37a18f 2214 IO *io = NULL;
760ac839 2215 PerlIO *fp;
16d20bd9 2216
a0d0e21e 2217 argtype = POPi;
32da55ab 2218 if (MAXARG == 0)
3280af22 2219 gv = PL_last_in_gv;
a0d0e21e
LW		 2220 else
2221 gv = (GV*)POPs;
bc37a18f
RG		 2222 if (gv && (io = GvIO(gv)))
2223 fp = IoIFP(io);
2224 else {
a0d0e21e 2225 fp = Nullfp;
bc37a18f
RG		 2226 io = NULL;
2227 }
a0d0e21e 2228 if (fp) {
68dc0745 2229 (void)PerlIO_flush(fp);
76e3520e 2230 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2231 }
cb50131a 2232 else {
bc37a18f
RG		 2233 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2234 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2235 value = 0;
93189314 2236 SETERRNO(EBADF,RMS_IFI);
cb50131a 2237 }
a0d0e21e
LW		 2238 PUSHi(value);
2239 RETURN;
2240#else
cea2e8a9 2241 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2242#endif
2243}
2244
2245/* Sockets. */
2246
2247PP(pp_socket)
2248{
a0d0e21e 2249#ifdef HAS_SOCKET
9cad6237 2250 dSP;
a0d0e21e
LW		 2251 GV *gv;
2252 register IO *io;
2253 int protocol = POPi;
2254 int type = POPi;
2255 int domain = POPi;
2256 int fd;
2257
2258 gv = (GV*)POPs;
c289d2f7 2259 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2260
c289d2f7
JH		 2261 if (!gv || !io) {
2262 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2263 report_evil_fh(gv, io, PL_op->op_type);
2264 if (IoIFP(io))
2265 do_close(gv, FALSE);
93189314 2266 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2267 RETPUSHUNDEF;
2268 }
2269
57171420
BS		 2270 if (IoIFP(io))
2271 do_close(gv, FALSE);
2272
a0d0e21e 2273 TAINT_PROPER("socket");
6ad3d225 2274 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2275 if (fd < 0)
2276 RETPUSHUNDEF;
760ac839
LW		 2277 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2278 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2279 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2280 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2281 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2282 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2283 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2284 RETPUSHUNDEF;
2285 }
8d2a6795
GS		 2286#if defined(HAS_FCNTL) && defined(F_SETFD)
2287 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2288#endif
a0d0e21e 2289
d5ff79b3
OF		 2290#ifdef EPOC
2291 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2292#endif
2293
a0d0e21e
LW		 2294 RETPUSHYES;
2295#else
cea2e8a9 2296 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2297#endif
2298}
2299
2300PP(pp_sockpair)
2301{
c95c94b1 2302#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2303 dSP;
a0d0e21e
LW		 2304 GV *gv1;
2305 GV *gv2;
2306 register IO *io1;
2307 register IO *io2;
2308 int protocol = POPi;
2309 int type = POPi;
2310 int domain = POPi;
2311 int fd[2];
2312
2313 gv2 = (GV*)POPs;
2314 gv1 = (GV*)POPs;
c289d2f7
JH		 2315 io1 = gv1 ? GvIOn(gv1) : NULL;
2316 io2 = gv2 ? GvIOn(gv2) : NULL;
2317 if (!gv1 || !gv2 || !io1 || !io2) {
2318 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2319 if (!gv1 || !io1)
2320 report_evil_fh(gv1, io1, PL_op->op_type);
2321 if (!gv2 || !io2)
2322 report_evil_fh(gv1, io2, PL_op->op_type);
2323 }
2324 if (IoIFP(io1))
2325 do_close(gv1, FALSE);
2326 if (IoIFP(io2))
2327 do_close(gv2, FALSE);
a0d0e21e 2328 RETPUSHUNDEF;
c289d2f7 2329 }
a0d0e21e 2330
dc0d0a5f
JH		 2331 if (IoIFP(io1))
2332 do_close(gv1, FALSE);
2333 if (IoIFP(io2))
2334 do_close(gv2, FALSE);
57171420 2335
a0d0e21e 2336 TAINT_PROPER("socketpair");
6ad3d225 2337 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2338 RETPUSHUNDEF;
760ac839
LW		 2339 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2340 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2341 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2342 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2343 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2344 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2345 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2346 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2347 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2348 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2349 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2350 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2351 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2352 RETPUSHUNDEF;
2353 }
8d2a6795
GS		 2354#if defined(HAS_FCNTL) && defined(F_SETFD)
2355 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2356 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2357#endif
a0d0e21e
LW		 2358
2359 RETPUSHYES;
2360#else
cea2e8a9 2361 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2362#endif
2363}
2364
2365PP(pp_bind)
2366{
a0d0e21e 2367#ifdef HAS_SOCKET
9cad6237 2368 dSP;
eec2d3df 2369#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2370 extern void GETPRIVMODE();
2371 extern void GETUSERMODE();
eec2d3df 2372#endif
748a9306 2373 SV *addrsv = POPs;
a0d0e21e
LW		 2374 char *addr;
2375 GV *gv = (GV*)POPs;
2376 register IO *io = GvIOn(gv);
2377 STRLEN len;
eec2d3df
GS		 2378 int bind_ok = 0;
2379#ifdef MPE
2380 int mpeprivmode = 0;
2381#endif
a0d0e21e
LW		 2382
2383 if (!io || !IoIFP(io))
2384 goto nuts;
2385
748a9306 2386 addr = SvPV(addrsv, len);
a0d0e21e 2387 TAINT_PROPER("bind");
eec2d3df
GS		 2388#ifdef MPE /* Deal with MPE bind() peculiarities */
2389 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2390 /* The address *MUST* stupidly be zero. */
2391 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2392 /* PRIV mode is required to bind() to ports < 1024. */
2393 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2394 ((struct sockaddr_in *)addr)->sin_port > 0) {
2395 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2396 mpeprivmode = 1;
2397 }
2398 }
2399#endif /* MPE */
2400 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2401 (struct sockaddr *)addr, len) >= 0)
2402 bind_ok = 1;
2403
2404#ifdef MPE /* Switch back to USER mode */
2405 if (mpeprivmode)
2406 GETUSERMODE();
2407#endif /* MPE */
2408
2409 if (bind_ok)
a0d0e21e
LW		 2410 RETPUSHYES;
2411 else
2412 RETPUSHUNDEF;
2413
2414nuts:
599cee73 2415 if (ckWARN(WARN_CLOSED))
bc37a18f 2416 report_evil_fh(gv, io, PL_op->op_type);
93189314 2417 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2418 RETPUSHUNDEF;
2419#else
cea2e8a9 2420 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2421#endif
2422}
2423
2424PP(pp_connect)
2425{
a0d0e21e 2426#ifdef HAS_SOCKET
9cad6237 2427 dSP;
748a9306 2428 SV *addrsv = POPs;
a0d0e21e
LW		 2429 char *addr;
2430 GV *gv = (GV*)POPs;
2431 register IO *io = GvIOn(gv);
2432 STRLEN len;
2433
2434 if (!io || !IoIFP(io))
2435 goto nuts;
2436
748a9306 2437 addr = SvPV(addrsv, len);
a0d0e21e 2438 TAINT_PROPER("connect");
6ad3d225 2439 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2440 RETPUSHYES;
2441 else
2442 RETPUSHUNDEF;
2443
2444nuts:
599cee73 2445 if (ckWARN(WARN_CLOSED))
bc37a18f 2446 report_evil_fh(gv, io, PL_op->op_type);
93189314 2447 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2448 RETPUSHUNDEF;
2449#else
cea2e8a9 2450 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2451#endif
2452}
2453
2454PP(pp_listen)
2455{
a0d0e21e 2456#ifdef HAS_SOCKET
9cad6237 2457 dSP;
a0d0e21e
LW		 2458 int backlog = POPi;
2459 GV *gv = (GV*)POPs;
c289d2f7 2460 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2461
c289d2f7 2462 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2463 goto nuts;
2464
6ad3d225 2465 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2466 RETPUSHYES;
2467 else
2468 RETPUSHUNDEF;
2469
2470nuts:
599cee73 2471 if (ckWARN(WARN_CLOSED))
bc37a18f 2472 report_evil_fh(gv, io, PL_op->op_type);
93189314 2473 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2474 RETPUSHUNDEF;
2475#else
cea2e8a9 2476 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2477#endif
2478}
2479
2480PP(pp_accept)
2481{
a0d0e21e 2482#ifdef HAS_SOCKET
9cad6237 2483 dSP; dTARGET;
a0d0e21e
LW		 2484 GV *ngv;
2485 GV *ggv;
2486 register IO *nstio;
2487 register IO *gstio;
4633a7c4 2488 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2489 Sock_size_t len = sizeof saddr;
a0d0e21e 2490 int fd;
72f496dc 2491 int fd2;
a0d0e21e
LW		 2492
2493 ggv = (GV*)POPs;
2494 ngv = (GV*)POPs;
2495
2496 if (!ngv)
2497 goto badexit;
2498 if (!ggv)
2499 goto nuts;
2500
2501 gstio = GvIO(ggv);
2502 if (!gstio || !IoIFP(gstio))
2503 goto nuts;
2504
2505 nstio = GvIOn(ngv);
6ad3d225 2506 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2507 if (fd < 0)
2508 goto badexit;
a70048fb
AB		 2509 if (IoIFP(nstio))
2510 do_close(ngv, FALSE);
760ac839 2511 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
72f496dc
NIS		 2512 /* FIXME: we dup(fd) here so that refcounting of fd's does not inhibit
2513 fclose of IoOFP's FILE * - and hence leak memory.
2514 Special treatment of _this_ case of IoIFP != IoOFP seems wrong.
2515 */
2516 IoOFP(nstio) = PerlIO_fdopen(fd2 = PerlLIO_dup(fd), "w");
50952442 2517 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2518 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2519 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2520 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2521 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2522 goto badexit;
2523 }
8d2a6795
GS		 2524#if defined(HAS_FCNTL) && defined(F_SETFD)
2525 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
72f496dc 2526 fcntl(fd2, F_SETFD, fd2 > PL_maxsysfd); /* ensure close-on-exec */
8d2a6795 2527#endif
a0d0e21e 2528
ed79a026 2529#ifdef EPOC
a9f1f6b0
OF		 2530 len = sizeof saddr; /* EPOC somehow truncates info */
2531 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026
OF		 2532#endif
2533
748a9306 2534 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2535 RETURN;
2536
2537nuts:
599cee73 2538 if (ckWARN(WARN_CLOSED))
bc37a18f 2539 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2540 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2541
2542badexit:
2543 RETPUSHUNDEF;
2544
2545#else
cea2e8a9 2546 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2547#endif
2548}
2549
2550PP(pp_shutdown)
2551{
a0d0e21e 2552#ifdef HAS_SOCKET
9cad6237 2553 dSP; dTARGET;
a0d0e21e
LW		 2554 int how = POPi;
2555 GV *gv = (GV*)POPs;
2556 register IO *io = GvIOn(gv);
2557
2558 if (!io || !IoIFP(io))
2559 goto nuts;
2560
6ad3d225 2561 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2562 RETURN;
2563
2564nuts:
599cee73 2565 if (ckWARN(WARN_CLOSED))
bc37a18f 2566 report_evil_fh(gv, io, PL_op->op_type);
93189314 2567 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2568 RETPUSHUNDEF;
2569#else
cea2e8a9 2570 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2571#endif
2572}
2573
2574PP(pp_gsockopt)
2575{
2576#ifdef HAS_SOCKET
cea2e8a9 2577 return pp_ssockopt();
a0d0e21e 2578#else
cea2e8a9 2579 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2580#endif
2581}
2582
2583PP(pp_ssockopt)
2584{
a0d0e21e 2585#ifdef HAS_SOCKET
9cad6237 2586 dSP;
533c011a 2587 int optype = PL_op->op_type;
a0d0e21e
LW		 2588 SV *sv;
2589 int fd;
2590 unsigned int optname;
2591 unsigned int lvl;
2592 GV *gv;
2593 register IO *io;
1e422769 2594 Sock_size_t len;
a0d0e21e
LW		 2595
2596 if (optype == OP_GSOCKOPT)
2597 sv = sv_2mortal(NEWSV(22, 257));
2598 else
2599 sv = POPs;
2600 optname = (unsigned int) POPi;
2601 lvl = (unsigned int) POPi;
2602
2603 gv = (GV*)POPs;
2604 io = GvIOn(gv);
2605 if (!io || !IoIFP(io))
2606 goto nuts;
2607
760ac839 2608 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2609 switch (optype) {
2610 case OP_GSOCKOPT:
748a9306 2611 SvGROW(sv, 257);
a0d0e21e 2612 (void)SvPOK_only(sv);
748a9306
LW		 2613 SvCUR_set(sv,256);
2614 *SvEND(sv) ='\0';
1e422769 2615 len = SvCUR(sv);
6ad3d225 2616 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2617 goto nuts2;
1e422769 2618 SvCUR_set(sv, len);
748a9306 2619 *SvEND(sv) ='\0';
a0d0e21e
LW		 2620 PUSHs(sv);
2621 break;
2622 case OP_SSOCKOPT: {
1e422769 2623 char *buf;
2624 int aint;
2625 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2626 STRLEN l;
2627 buf = SvPV(sv, l);
2628 len = l;
1e422769 2629 }
56ee1660 2630 else {
a0d0e21e
LW		 2631 aint = (int)SvIV(sv);
2632 buf = (char*)&aint;
2633 len = sizeof(int);
2634 }
6ad3d225 2635 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2636 goto nuts2;
3280af22 2637 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2638 }
2639 break;
2640 }
2641 RETURN;
2642
2643nuts:
599cee73 2644 if (ckWARN(WARN_CLOSED))
bc37a18f 2645 report_evil_fh(gv, io, optype);
93189314 2646 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2647nuts2:
2648 RETPUSHUNDEF;
2649
2650#else
cea2e8a9 2651 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2652#endif
2653}
2654
2655PP(pp_getsockname)
2656{
2657#ifdef HAS_SOCKET
cea2e8a9 2658 return pp_getpeername();
a0d0e21e 2659#else
cea2e8a9 2660 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2661#endif
2662}
2663
2664PP(pp_getpeername)
2665{
a0d0e21e 2666#ifdef HAS_SOCKET
9cad6237 2667 dSP;
533c011a 2668 int optype = PL_op->op_type;
a0d0e21e
LW		 2669 SV *sv;
2670 int fd;
2671 GV *gv = (GV*)POPs;
2672 register IO *io = GvIOn(gv);
1e422769 2673 Sock_size_t len;
a0d0e21e
LW		 2674
2675 if (!io || !IoIFP(io))
2676 goto nuts;
2677
2678 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2679 (void)SvPOK_only(sv);
1e422769 2680 len = 256;
2681 SvCUR_set(sv, len);
748a9306 2682 *SvEND(sv) ='\0';
760ac839 2683 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2684 switch (optype) {
2685 case OP_GETSOCKNAME:
6ad3d225 2686 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2687 goto nuts2;
2688 break;
2689 case OP_GETPEERNAME:
6ad3d225 2690 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2691 goto nuts2;
490ab354
JH		 2692#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2693 {
2694 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";
2695 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2696 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2697 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2698 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2699 goto nuts2;
490ab354
JH		 2700 }
2701 }
2702#endif
a0d0e21e
LW		 2703 break;
2704 }
13826f2c
CS		 2705#ifdef BOGUS_GETNAME_RETURN
2706 /* Interactive Unix, getpeername() and getsockname()
2707 does not return valid namelen */
1e422769 2708 if (len == BOGUS_GETNAME_RETURN)
2709 len = sizeof(struct sockaddr);
13826f2c 2710#endif
1e422769 2711 SvCUR_set(sv, len);
748a9306 2712 *SvEND(sv) ='\0';
a0d0e21e
LW		 2713 PUSHs(sv);
2714 RETURN;
2715
2716nuts:
599cee73 2717 if (ckWARN(WARN_CLOSED))
bc37a18f 2718 report_evil_fh(gv, io, optype);
93189314 2719 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2720nuts2:
2721 RETPUSHUNDEF;
2722
2723#else
cea2e8a9 2724 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2725#endif
2726}
2727
2728/* Stat calls. */
2729
2730PP(pp_lstat)
2731{
cea2e8a9 2732 return pp_stat();
a0d0e21e
LW		 2733}
2734
2735PP(pp_stat)
2736{
39644a26 2737 dSP;
2dd78f96 2738 GV *gv;
54310121 2739 I32 gimme;
a0d0e21e 2740 I32 max = 13;
2d8e6c8d 2741 STRLEN n_a;
a0d0e21e 2742
533c011a 2743 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2744 gv = cGVOP_gv;
8a4e5b40 2745 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2746 if (gv != PL_defgv) {
2747 if (ckWARN(WARN_IO))
9014280d 2748 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2749 "lstat() on filehandle %s", GvENAME(gv));
2750 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2751 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2752 }
2753
748a9306 2754 do_fstat:
2dd78f96 2755 if (gv != PL_defgv) {
3280af22 2756 PL_laststype = OP_STAT;
2dd78f96 2757 PL_statgv = gv;
3280af22 2758 sv_setpv(PL_statname, "");
2dd78f96
JH		 2759 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2760 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2761 }
9ddeeac9 2762 if (PL_laststatval < 0) {
2dd78f96
JH		 2763 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2764 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2765 max = 0;
9ddeeac9 2766 }
a0d0e21e
LW		 2767 }
2768 else {
748a9306
LW		 2769 SV* sv = POPs;
2770 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2771 gv = (GV*)sv;
748a9306
LW		 2772 goto do_fstat;
2773 }
2774 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2775 gv = (GV*)SvRV(sv);
5d3e98de 2776 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2777 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2778 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2779 goto do_fstat;
2780 }
2d8e6c8d 2781 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2782 PL_statgv = Nullgv;
a0d0e21e 2783#ifdef HAS_LSTAT
533c011a
NIS		 2784 PL_laststype = PL_op->op_type;
2785 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2786 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2787 else
2788#endif
2d8e6c8d 2789 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2790 if (PL_laststatval < 0) {
2d8e6c8d 2791 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2792 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2793 max = 0;
2794 }
2795 }
2796
54310121 2797 gimme = GIMME_V;
2798 if (gimme != G_ARRAY) {
2799 if (gimme != G_VOID)
2800 XPUSHs(boolSV(max));
2801 RETURN;
a0d0e21e
LW		 2802 }
2803 if (max) {
36477c24 2804 EXTEND(SP, max);
2805 EXTEND_MORTAL(max);
1ff81528
PL		 2806 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2807 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2808 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2809 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2810#if Uid_t_size > IVSIZE
2811 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2812#else
23dcd6c8 2813# if Uid_t_sign <= 0
1ff81528 2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2815# else
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2817# endif
146174a9 2818#endif
301e8125 2819#if Gid_t_size > IVSIZE
146174a9
CB		 2820 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2821#else
23dcd6c8 2822# if Gid_t_sign <= 0
1ff81528 2823 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2824# else
2825 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2826# endif
146174a9 2827#endif
cbdc8872 2828#ifdef USE_STAT_RDEV
1ff81528 2829 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2830#else
79cb57f6 2831 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2832#endif
146174a9
CB		 2833#if Off_t_size > IVSIZE
2834 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2835#else
1ff81528 2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2837#endif
cbdc8872 2838#ifdef BIG_TIME
172ae379
JH		 2839 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2840 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2841 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2842#else
1ff81528
PL		 2843 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2844 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2845 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2846#endif
a0d0e21e 2847#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2848 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2849 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2850#else
79cb57f6
GS		 2851 PUSHs(sv_2mortal(newSVpvn("", 0)));
2852 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2853#endif
2854 }
2855 RETURN;
2856}
2857
2858PP(pp_ftrread)
2859{
9cad6237 2860 I32 result;
2a3ff820 2861 dSP;
5ff3f7a4 2862#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2863 STRLEN n_a;
5ff3f7a4 2864 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2865 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2866 if (result == 0)
2867 RETPUSHYES;
2868 if (result < 0)
2869 RETPUSHUNDEF;
2870 RETPUSHNO;
22865c03
GS		 2871 }
2872 else
cea2e8a9 2873 result = my_stat();
5ff3f7a4 2874#else
cea2e8a9 2875 result = my_stat();
5ff3f7a4 2876#endif
22865c03 2877 SPAGAIN;
a0d0e21e
LW		 2878 if (result < 0)
2879 RETPUSHUNDEF;
3280af22 2880 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2881 RETPUSHYES;
2882 RETPUSHNO;
2883}
2884
2885PP(pp_ftrwrite)
2886{
9cad6237 2887 I32 result;
2a3ff820 2888 dSP;
5ff3f7a4 2889#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2890 STRLEN n_a;
5ff3f7a4 2891 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2892 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2893 if (result == 0)
2894 RETPUSHYES;
2895 if (result < 0)
2896 RETPUSHUNDEF;
2897 RETPUSHNO;
22865c03
GS		 2898 }
2899 else
cea2e8a9 2900 result = my_stat();
5ff3f7a4 2901#else
cea2e8a9 2902 result = my_stat();
5ff3f7a4 2903#endif
22865c03 2904 SPAGAIN;
a0d0e21e
LW		 2905 if (result < 0)
2906 RETPUSHUNDEF;
3280af22 2907 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2908 RETPUSHYES;
2909 RETPUSHNO;
2910}
2911
2912PP(pp_ftrexec)
2913{
9cad6237 2914 I32 result;
2a3ff820 2915 dSP;
5ff3f7a4 2916#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2917 STRLEN n_a;
5ff3f7a4 2918 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2919 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2920 if (result == 0)
2921 RETPUSHYES;
2922 if (result < 0)
2923 RETPUSHUNDEF;
2924 RETPUSHNO;
22865c03
GS		 2925 }
2926 else
cea2e8a9 2927 result = my_stat();
5ff3f7a4 2928#else
cea2e8a9 2929 result = my_stat();
5ff3f7a4 2930#endif
22865c03 2931 SPAGAIN;
a0d0e21e
LW		 2932 if (result < 0)
2933 RETPUSHUNDEF;
3280af22 2934 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2935 RETPUSHYES;
2936 RETPUSHNO;
2937}
2938
2939PP(pp_fteread)
2940{
9cad6237 2941 I32 result;
2a3ff820 2942 dSP;
5ff3f7a4 2943#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2944 STRLEN n_a;
5ff3f7a4 2945 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2946 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2947 if (result == 0)
2948 RETPUSHYES;
2949 if (result < 0)
2950 RETPUSHUNDEF;
2951 RETPUSHNO;
22865c03
GS		 2952 }
2953 else
cea2e8a9 2954 result = my_stat();
5ff3f7a4 2955#else
cea2e8a9 2956 result = my_stat();
5ff3f7a4 2957#endif
22865c03 2958 SPAGAIN;
a0d0e21e
LW		 2959 if (result < 0)
2960 RETPUSHUNDEF;
3280af22 2961 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2962 RETPUSHYES;
2963 RETPUSHNO;
2964}
2965
2966PP(pp_ftewrite)
2967{
9cad6237 2968 I32 result;
2a3ff820 2969 dSP;
5ff3f7a4 2970#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2971 STRLEN n_a;
5ff3f7a4 2972 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2973 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2974 if (result == 0)
2975 RETPUSHYES;
2976 if (result < 0)
2977 RETPUSHUNDEF;
2978 RETPUSHNO;
22865c03
GS		 2979 }
2980 else
cea2e8a9 2981 result = my_stat();
5ff3f7a4 2982#else
cea2e8a9 2983 result = my_stat();
5ff3f7a4 2984#endif
22865c03 2985 SPAGAIN;
a0d0e21e
LW		 2986 if (result < 0)
2987 RETPUSHUNDEF;
3280af22 2988 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2989 RETPUSHYES;
2990 RETPUSHNO;
2991}
2992
2993PP(pp_fteexec)
2994{
9cad6237 2995 I32 result;
2a3ff820 2996 dSP;
5ff3f7a4 2997#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2998 STRLEN n_a;
5ff3f7a4 2999 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 3000 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 3001 if (result == 0)
3002 RETPUSHYES;
3003 if (result < 0)
3004 RETPUSHUNDEF;
3005 RETPUSHNO;
22865c03
GS		 3006 }
3007 else
cea2e8a9 3008 result = my_stat();
5ff3f7a4 3009#else
cea2e8a9 3010 result = my_stat();
5ff3f7a4 3011#endif
22865c03 3012 SPAGAIN;
a0d0e21e
LW		 3013 if (result < 0)
3014 RETPUSHUNDEF;
3280af22 3015 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3016 RETPUSHYES;
3017 RETPUSHNO;
3018}
3019
3020PP(pp_ftis)
3021{
9cad6237 3022 I32 result = my_stat();
2a3ff820 3023 dSP;
a0d0e21e
LW		 3024 if (result < 0)
3025 RETPUSHUNDEF;
3026 RETPUSHYES;
3027}
3028
3029PP(pp_fteowned)
3030{
cea2e8a9 3031 return pp_ftrowned();
a0d0e21e
LW		 3032}
3033
3034PP(pp_ftrowned)
3035{
9cad6237 3036 I32 result = my_stat();
2a3ff820 3037 dSP;
a0d0e21e
LW		 3038 if (result < 0)
3039 RETPUSHUNDEF;
146174a9
CB		 3040 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3041 PL_euid : PL_uid) )
a0d0e21e
LW		 3042 RETPUSHYES;
3043 RETPUSHNO;
3044}
3045
3046PP(pp_ftzero)
3047{
9cad6237 3048 I32 result = my_stat();
2a3ff820 3049 dSP;
a0d0e21e
LW		 3050 if (result < 0)
3051 RETPUSHUNDEF;
146174a9 3052 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3053 RETPUSHYES;
3054 RETPUSHNO;
3055}
3056
3057PP(pp_ftsize)
3058{
9cad6237 3059 I32 result = my_stat();
2a3ff820 3060 dSP; dTARGET;
a0d0e21e
LW		 3061 if (result < 0)
3062 RETPUSHUNDEF;
146174a9
CB		 3063#if Off_t_size > IVSIZE
3064 PUSHn(PL_statcache.st_size);
3065#else
3280af22 3066 PUSHi(PL_statcache.st_size);
146174a9 3067#endif
a0d0e21e
LW		 3068 RETURN;
3069}
3070
3071PP(pp_ftmtime)
3072{
9cad6237 3073 I32 result = my_stat();
2a3ff820 3074 dSP; dTARGET;
a0d0e21e
LW		 3075 if (result < 0)
3076 RETPUSHUNDEF;
c6419e06 3077 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 3078 RETURN;
3079}
3080
3081PP(pp_ftatime)
3082{
9cad6237 3083 I32 result = my_stat();
2a3ff820 3084 dSP; dTARGET;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
c6419e06 3087 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3088 RETURN;
3089}
3090
3091PP(pp_ftctime)
3092{
9cad6237 3093 I32 result = my_stat();
2a3ff820 3094 dSP; dTARGET;
a0d0e21e
LW		 3095 if (result < 0)
3096 RETPUSHUNDEF;
c6419e06 3097 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3098 RETURN;
3099}
3100
3101PP(pp_ftsock)
3102{
9cad6237 3103 I32 result = my_stat();
2a3ff820 3104 dSP;
a0d0e21e
LW		 3105 if (result < 0)
3106 RETPUSHUNDEF;
3280af22 3107 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3108 RETPUSHYES;
3109 RETPUSHNO;
3110}
3111
3112PP(pp_ftchr)
3113{
9cad6237 3114 I32 result = my_stat();
2a3ff820 3115 dSP;
a0d0e21e
LW		 3116 if (result < 0)
3117 RETPUSHUNDEF;
3280af22 3118 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3119 RETPUSHYES;
3120 RETPUSHNO;
3121}
3122
3123PP(pp_ftblk)
3124{
9cad6237 3125 I32 result = my_stat();
2a3ff820 3126 dSP;
a0d0e21e
LW		 3127 if (result < 0)
3128 RETPUSHUNDEF;
3280af22 3129 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3130 RETPUSHYES;
3131 RETPUSHNO;
3132}
3133
3134PP(pp_ftfile)
3135{
9cad6237 3136 I32 result = my_stat();
2a3ff820 3137 dSP;
a0d0e21e
LW		 3138 if (result < 0)
3139 RETPUSHUNDEF;
3280af22 3140 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3141 RETPUSHYES;
3142 RETPUSHNO;
3143}
3144
3145PP(pp_ftdir)
3146{
9cad6237 3147 I32 result = my_stat();
2a3ff820 3148 dSP;
a0d0e21e
LW		 3149 if (result < 0)
3150 RETPUSHUNDEF;
3280af22 3151 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3152 RETPUSHYES;
3153 RETPUSHNO;
3154}
3155
3156PP(pp_ftpipe)
3157{
9cad6237 3158 I32 result = my_stat();
2a3ff820 3159 dSP;
a0d0e21e
LW		 3160 if (result < 0)
3161 RETPUSHUNDEF;
3280af22 3162 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3163 RETPUSHYES;
3164 RETPUSHNO;
3165}
3166
3167PP(pp_ftlink)
3168{
9cad6237 3169 I32 result = my_lstat();
2a3ff820 3170 dSP;
a0d0e21e
LW		 3171 if (result < 0)
3172 RETPUSHUNDEF;
3280af22 3173 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3174 RETPUSHYES;
3175 RETPUSHNO;
3176}
3177
3178PP(pp_ftsuid)
3179{
39644a26 3180 dSP;
a0d0e21e 3181#ifdef S_ISUID
cea2e8a9 3182 I32 result = my_stat();
a0d0e21e
LW		 3183 SPAGAIN;
3184 if (result < 0)
3185 RETPUSHUNDEF;
3280af22 3186 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3187 RETPUSHYES;
3188#endif
3189 RETPUSHNO;
3190}
3191
3192PP(pp_ftsgid)
3193{
39644a26 3194 dSP;
a0d0e21e 3195#ifdef S_ISGID
cea2e8a9 3196 I32 result = my_stat();
a0d0e21e
LW		 3197 SPAGAIN;
3198 if (result < 0)
3199 RETPUSHUNDEF;
3280af22 3200 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3201 RETPUSHYES;
3202#endif
3203 RETPUSHNO;
3204}
3205
3206PP(pp_ftsvtx)
3207{
39644a26 3208 dSP;
a0d0e21e 3209#ifdef S_ISVTX
cea2e8a9 3210 I32 result = my_stat();
a0d0e21e
LW		 3211 SPAGAIN;
3212 if (result < 0)
3213 RETPUSHUNDEF;
3280af22 3214 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3215 RETPUSHYES;
3216#endif
3217 RETPUSHNO;
3218}
3219
3220PP(pp_fttty)
3221{
39644a26 3222 dSP;
a0d0e21e
LW		 3223 int fd;
3224 GV *gv;
fb73857a 3225 char *tmps = Nullch;
2d8e6c8d 3226 STRLEN n_a;
fb73857a 3227
533c011a 3228 if (PL_op->op_flags & OPf_REF)
146174a9 3229 gv = cGVOP_gv;
fb73857a 3230 else if (isGV(TOPs))
3231 gv = (GV*)POPs;
3232 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3233 gv = (GV*)SvRV(POPs);
a0d0e21e 3234 else
2d8e6c8d 3235 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3236
a0d0e21e 3237 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3238 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3239 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3240 fd = atoi(tmps);
3241 else
3242 RETPUSHUNDEF;
6ad3d225 3243 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3244 RETPUSHYES;
3245 RETPUSHNO;
3246}
3247
16d20bd9
AD		 3248#if defined(atarist) /* this will work with atariST. Configure will
3249 make guesses for other systems. */
3250# define FILE_base(f) ((f)->_base)
3251# define FILE_ptr(f) ((f)->_ptr)
3252# define FILE_cnt(f) ((f)->_cnt)
3253# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3254#endif
3255
3256PP(pp_fttext)
3257{
39644a26 3258 dSP;
a0d0e21e
LW		 3259 I32 i;
3260 I32 len;
3261 I32 odd = 0;
3262 STDCHAR tbuf[512];
3263 register STDCHAR *s;
3264 register IO *io;
5f05dabc 3265 register SV *sv;
3266 GV *gv;
2d8e6c8d 3267 STRLEN n_a;
146174a9 3268 PerlIO *fp;
a0d0e21e 3269
533c011a 3270 if (PL_op->op_flags & OPf_REF)
146174a9 3271 gv = cGVOP_gv;
5f05dabc 3272 else if (isGV(TOPs))
3273 gv = (GV*)POPs;
3274 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3275 gv = (GV*)SvRV(POPs);
3276 else
3277 gv = Nullgv;
3278
3279 if (gv) {
a0d0e21e 3280 EXTEND(SP, 1);
3280af22
NIS		 3281 if (gv == PL_defgv) {
3282 if (PL_statgv)
3283 io = GvIO(PL_statgv);
a0d0e21e 3284 else {
3280af22 3285 sv = PL_statname;
a0d0e21e
LW		 3286 goto really_filename;
3287 }
3288 }
3289 else {
3280af22
NIS		 3290 PL_statgv = gv;
3291 PL_laststatval = -1;
3292 sv_setpv(PL_statname, "");
3293 io = GvIO(PL_statgv);
a0d0e21e
LW		 3294 }
3295 if (io && IoIFP(io)) {
5f05dabc 3296 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3297 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3298 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3299 if (PL_laststatval < 0)
5f05dabc 3300 RETPUSHUNDEF;
9cbac4c7 3301 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3302 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3303 RETPUSHNO;
3304 else
3305 RETPUSHYES;
9cbac4c7 3306 }
a20bf0c3 3307 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3308 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3309 if (i != EOF)
760ac839 3310 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3311 }
a20bf0c3 3312 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3313 RETPUSHYES;
a20bf0c3
JH		 3314 len = PerlIO_get_bufsiz(IoIFP(io));
3315 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3316 /* sfio can have large buffers - limit to 512 */
3317 if (len > 512)
3318 len = 512;
a0d0e21e
LW		 3319 }
3320 else {
2dd78f96 3321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3322 gv = cGVOP_gv;
2dd78f96 3323 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3324 }
93189314 3325 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3326 RETPUSHUNDEF;
3327 }
3328 }
3329 else {
3330 sv = POPs;
5f05dabc 3331 really_filename:
3280af22
NIS		 3332 PL_statgv = Nullgv;
3333 PL_laststatval = -1;
5c9aa243 3334 PL_laststype = OP_STAT;
2d8e6c8d 3335 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3336 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3337 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
9014280d 3338 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3339 RETPUSHUNDEF;
3340 }
146174a9
CB		 3341 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3342 if (PL_laststatval < 0) {
3343 (void)PerlIO_close(fp);
5f05dabc 3344 RETPUSHUNDEF;
146174a9 3345 }
60382766 3346 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3347 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3348 (void)PerlIO_close(fp);
a0d0e21e 3349 if (len <= 0) {
533c011a 3350 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3351 RETPUSHNO; /* special case NFS directories */
3352 RETPUSHYES; /* null file is anything */
3353 }
3354 s = tbuf;
3355 }
3356
3357 /* now scan s to look for textiness */
4633a7c4 3358 /* XXX ASCII dependent code */
a0d0e21e 3359
146174a9
CB		 3360#if defined(DOSISH) || defined(USEMYBINMODE)
3361 /* ignore trailing ^Z on short files */
3362 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3363 --len;
3364#endif
3365
a0d0e21e
LW		 3366 for (i = 0; i < len; i++, s++) {
3367 if (!*s) { /* null never allowed in text */
3368 odd += len;
3369 break;
3370 }
9d116dd7 3371#ifdef EBCDIC
301e8125 3372 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3373 odd++;
3374#else
146174a9
CB		 3375 else if (*s & 128) {
3376#ifdef USE_LOCALE
2de3dbcc 3377 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3378 continue;
3379#endif
3380 /* utf8 characters don't count as odd */
fd400ab9 3381 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3382 int ulen = UTF8SKIP(s);
3383 if (ulen < len - i) {
3384 int j;
3385 for (j = 1; j < ulen; j++) {
fd400ab9 3386 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3387 goto not_utf8;
3388 }
3389 --ulen; /* loop does extra increment */
3390 s += ulen;
3391 i += ulen;
3392 continue;
3393 }
3394 }
3395 not_utf8:
3396 odd++;
146174a9 3397 }
a0d0e21e
LW		 3398 else if (*s < 32 &&
3399 *s != '\n' && *s != '\r' && *s != '\b' &&
3400 *s != '\t' && *s != '\f' && *s != 27)
3401 odd++;
9d116dd7 3402#endif
a0d0e21e
LW		 3403 }
3404
533c011a 3405 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3406 RETPUSHNO;
3407 else
3408 RETPUSHYES;
3409}
3410
3411PP(pp_ftbinary)
3412{
cea2e8a9 3413 return pp_fttext();
a0d0e21e
LW		 3414}
3415
3416/* File calls. */
3417
3418PP(pp_chdir)
3419{
39644a26 3420 dSP; dTARGET;
a0d0e21e
LW		 3421 char *tmps;
3422 SV **svp;
2d8e6c8d 3423 STRLEN n_a;
a0d0e21e 3424
35ae6b54
MS		 3425 if( MAXARG == 1 )
3426 tmps = POPpx;
3427 else
3428 tmps = 0;
3429
3430 if( !tmps || !*tmps ) {
3431 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3432 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3433#ifdef VMS
35ae6b54 3434 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3435#endif
35ae6b54
MS		 3436 )
3437 {
3438 if( MAXARG == 1 )
9014280d 3439 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3440 tmps = SvPV(*svp, n_a);
3441 }
72f496dc 3442 else {
389ec635 3443 PUSHi(0);
b7ab37f8 3444 TAINT_PROPER("chdir");
389ec635
MS		 3445 RETURN;
3446 }
8ea155d1 3447 }
8ea155d1 3448
a0d0e21e 3449 TAINT_PROPER("chdir");
6ad3d225 3450 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3451#ifdef VMS
3452 /* Clear the DEFAULT element of ENV so we'll get the new value
3453 * in the future. */
6b88bc9c 3454 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3455#endif
a0d0e21e
LW		 3456 RETURN;
3457}
3458
3459PP(pp_chown)
3460{
a0d0e21e 3461#ifdef HAS_CHOWN
76ffd3b9
IZ		 3462 dSP; dMARK; dTARGET;
3463 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3464
a0d0e21e
LW		 3465 SP = MARK;
3466 PUSHi(value);
3467 RETURN;
3468#else
0322a713 3469 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3470#endif
3471}
3472
3473PP(pp_chroot)
3474{
a0d0e21e 3475#ifdef HAS_CHROOT
76ffd3b9 3476 dSP; dTARGET;
2d8e6c8d 3477 STRLEN n_a;
d05c1ba0 3478 char *tmps = POPpx;
a0d0e21e
LW		 3479 TAINT_PROPER("chroot");
3480 PUSHi( chroot(tmps) >= 0 );
3481 RETURN;
3482#else
cea2e8a9 3483 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3484#endif
3485}
3486
3487PP(pp_unlink)
3488{
39644a26 3489 dSP; dMARK; dTARGET;
a0d0e21e 3490 I32 value;
533c011a 3491 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3492 SP = MARK;
3493 PUSHi(value);
3494 RETURN;
3495}
3496
3497PP(pp_chmod)
3498{
39644a26 3499 dSP; dMARK; dTARGET;
a0d0e21e 3500 I32 value;
533c011a 3501 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3502 SP = MARK;
3503 PUSHi(value);
3504 RETURN;
3505}
3506
3507PP(pp_utime)
3508{
39644a26 3509 dSP; dMARK; dTARGET;
a0d0e21e 3510 I32 value;
533c011a 3511 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3512 SP = MARK;
3513 PUSHi(value);
3514 RETURN;
3515}
3516
3517PP(pp_rename)
3518{
39644a26 3519 dSP; dTARGET;
a0d0e21e 3520 int anum;
2d8e6c8d 3521 STRLEN n_a;
a0d0e21e 3522
2d8e6c8d
GS		 3523 char *tmps2 = POPpx;
3524 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3525 TAINT_PROPER("rename");
3526#ifdef HAS_RENAME
baed7233 3527 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3528#else
6b88bc9c 3529 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3530 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3531 anum = 1;
3532 else {
3654eb6c 3533 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3534 (void)UNLINK(tmps2);
3535 if (!(anum = link(tmps, tmps2)))
3536 anum = UNLINK(tmps);
3537 }
a0d0e21e
LW		 3538 }
3539#endif
3540 SETi( anum >= 0 );
3541 RETURN;
3542}
3543
3544PP(pp_link)
3545{
a0d0e21e 3546#ifdef HAS_LINK
370f6000 3547 dSP; dTARGET;
2d8e6c8d
GS		 3548 STRLEN n_a;
3549 char *tmps2 = POPpx;
3550 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3551 TAINT_PROPER("link");
146174a9 3552 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3553 RETURN;
a0d0e21e 3554#else
0322a713 3555 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3556#endif
a0d0e21e
LW		 3557}
3558
3559PP(pp_symlink)
3560{
a0d0e21e 3561#ifdef HAS_SYMLINK
9cad6237 3562 dSP; dTARGET;
2d8e6c8d
GS		 3563 STRLEN n_a;
3564 char *tmps2 = POPpx;
3565 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3566 TAINT_PROPER("symlink");
3567 SETi( symlink(tmps, tmps2) >= 0 );
3568 RETURN;
3569#else
cea2e8a9 3570 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3571#endif
3572}
3573
3574PP(pp_readlink)
3575{
76ffd3b9 3576 dSP;
a0d0e21e 3577#ifdef HAS_SYMLINK
76ffd3b9 3578 dTARGET;
a0d0e21e 3579 char *tmps;
46fc3d4c 3580 char buf[MAXPATHLEN];
a0d0e21e 3581 int len;
2d8e6c8d 3582 STRLEN n_a;
46fc3d4c 3583
fb73857a 3584#ifndef INCOMPLETE_TAINTS
3585 TAINT;
3586#endif
2d8e6c8d 3587 tmps = POPpx;
97dcea33 3588 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3589 EXTEND(SP, 1);
3590 if (len < 0)
3591 RETPUSHUNDEF;
3592 PUSHp(buf, len);
3593 RETURN;
3594#else
3595 EXTEND(SP, 1);
3596 RETSETUNDEF; /* just pretend it's a normal file */
3597#endif
3598}
3599
3600#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3601STATIC int
cea2e8a9 3602S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3603{
1e422769 3604 char *save_filename = filename;
3605 char *cmdline;
3606 char *s;
760ac839 3607 PerlIO *myfp;
1e422769 3608 int anum = 1;
a0d0e21e 3609
1e422769 3610 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3611 strcpy(cmdline, cmd);
3612 strcat(cmdline, " ");
3613 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3614 *s++ = '\\';
3615 *s++ = *filename++;
3616 }
3617 strcpy(s, " 2>&1");
6ad3d225 3618 myfp = PerlProc_popen(cmdline, "r");
1e422769 3619 Safefree(cmdline);
3620
a0d0e21e 3621 if (myfp) {
1e422769 3622 SV *tmpsv = sv_newmortal();
6b88bc9c 3623 /* Need to save/restore 'PL_rs' ?? */
760ac839 3624 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3625 (void)PerlProc_pclose(myfp);
a0d0e21e 3626 if (s != Nullch) {
1e422769 3627 int e;
3628 for (e = 1;
a0d0e21e 3629#ifdef HAS_SYS_ERRLIST
1e422769 3630 e <= sys_nerr
3631#endif
3632 ; e++)
3633 {
3634 /* you don't see this */
3635 char *errmsg =
3636#ifdef HAS_SYS_ERRLIST
3637 sys_errlist[e]
a0d0e21e 3638#else
1e422769 3639 strerror(e)
a0d0e21e 3640#endif
1e422769 3641 ;
3642 if (!errmsg)
3643 break;
3644 if (instr(s, errmsg)) {
3645 SETERRNO(e,0);
3646 return 0;
3647 }
a0d0e21e 3648 }
748a9306 3649 SETERRNO(0,0);
a0d0e21e
LW		 3650#ifndef EACCES
3651#define EACCES EPERM
3652#endif
1e422769 3653 if (instr(s, "cannot make"))
93189314 3654 SETERRNO(EEXIST,RMS_FEX);
1e422769 3655 else if (instr(s, "existing file"))
93189314 3656 SETERRNO(EEXIST,RMS_FEX);
1e422769 3657 else if (instr(s, "ile exists"))
93189314 3658 SETERRNO(EEXIST,RMS_FEX);
1e422769 3659 else if (instr(s, "non-exist"))
93189314 3660 SETERRNO(ENOENT,RMS_FNF);
1e422769 3661 else if (instr(s, "does not exist"))
93189314 3662 SETERRNO(ENOENT,RMS_FNF);
1e422769 3663 else if (instr(s, "not empty"))
93189314 3664 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3665 else if (instr(s, "cannot access"))
93189314 3666 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3667 else
93189314 3668 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3669 return 0;
3670 }
3671 else { /* some mkdirs return no failure indication */
6b88bc9c 3672 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3673 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3674 anum = !anum;
3675 if (anum)
748a9306 3676 SETERRNO(0,0);
a0d0e21e 3677 else
93189314 3678 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3679 }
3680 return anum;
3681 }
3682 else
3683 return 0;
3684}
3685#endif
3686
3687PP(pp_mkdir)
3688{
39644a26 3689 dSP; dTARGET;
5a211162 3690 int mode;
a0d0e21e
LW		 3691#ifndef HAS_MKDIR
3692 int oldumask;
3693#endif
df25ddba 3694 STRLEN len;
5a211162 3695 char *tmps;
df25ddba 3696 bool copy = FALSE;
5a211162
GS		 3697
3698 if (MAXARG > 1)
3699 mode = POPi;
3700 else
3701 mode = 0777;
3702
df25ddba
JH		 3703 tmps = SvPV(TOPs, len);
3704 /* Different operating and file systems take differently to
16ac3975
JH		 3705 * trailing slashes. According to POSIX 1003.1 1996 Edition
3706 * any number of trailing slashes should be allowed.
3707 * Thusly we snip them away so that even non-conforming
3708 * systems are happy. */
3709 /* We should probably do this "filtering" for all
3710 * the functions that expect (potentially) directory names:
3711 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3712 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3713 if (len > 1 && tmps[len-1] == '/') {
61439650 3714 while (tmps[len-1] == '/' && len > 1)
16ac3975
JH		 3715 len--;
3716 tmps = savepvn(tmps, len);
df25ddba
JH		 3717 copy = TRUE;
3718 }
a0d0e21e
LW		 3719
3720 TAINT_PROPER("mkdir");
3721#ifdef HAS_MKDIR
6ad3d225 3722 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3723#else
3724 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3725 oldumask = PerlLIO_umask(0);
3726 PerlLIO_umask(oldumask);
3727 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3728#endif
df25ddba
JH		 3729 if (copy)
3730 Safefree(tmps);
a0d0e21e
LW		 3731 RETURN;
3732}
3733
3734PP(pp_rmdir)
3735{
39644a26 3736 dSP; dTARGET;
a0d0e21e 3737 char *tmps;
2d8e6c8d 3738 STRLEN n_a;
a0d0e21e 3739
2d8e6c8d 3740 tmps = POPpx;
a0d0e21e
LW		 3741 TAINT_PROPER("rmdir");
3742#ifdef HAS_RMDIR
6ad3d225 3743 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e
LW		 3744#else
3745 XPUSHi( dooneliner("rmdir", tmps) );
3746#endif
3747 RETURN;
3748}
3749
3750/* Directory calls. */
3751
3752PP(pp_open_dir)
3753{
a0d0e21e 3754#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3755 dSP;
2d8e6c8d
GS		 3756 STRLEN n_a;
3757 char *dirname = POPpx;
1e2c6ed7
JH		 3758 GV *gv = (GV*)POPs;
3759 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3760
3761 if (!io)
3762 goto nope;
3763
3764 if (IoDIRP(io))
6ad3d225
GS		 3765 PerlDir_close(IoDIRP(io));
3766 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3767 goto nope;
3768
3769 RETPUSHYES;
3770nope:
3771 if (!errno)
93189314 3772 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3773 RETPUSHUNDEF;
3774#else
cea2e8a9 3775 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3776#endif
3777}
3778
3779PP(pp_readdir)
3780{
a0d0e21e 3781#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3782 dSP;
fd8cd3a3 3783#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3784 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3785#endif
3786 register Direntry_t *dp;
3787 GV *gv = (GV*)POPs;
3788 register IO *io = GvIOn(gv);
fb73857a 3789 SV *sv;
a0d0e21e
LW		 3790
3791 if (!io || !IoDIRP(io))
3792 goto nope;
3793
3794 if (GIMME == G_ARRAY) {
3795 /*SUPPRESS 560*/
155aba94 3796 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3797#ifdef DIRNAMLEN
79cb57f6 3798 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3799#else
fb73857a 3800 sv = newSVpv(dp->d_name, 0);
3801#endif
3802#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3803 if (!(IoFLAGS(io) & IOf_UNTAINT))
3804 SvTAINTED_on(sv);
a0d0e21e 3805#endif
fb73857a 3806 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3807 }
3808 }
3809 else {
6ad3d225 3810 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3811 goto nope;
3812#ifdef DIRNAMLEN
79cb57f6 3813 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3814#else
fb73857a 3815 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3816#endif
fb73857a 3817#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3818 if (!(IoFLAGS(io) & IOf_UNTAINT))
3819 SvTAINTED_on(sv);
fb73857a 3820#endif
3821 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3822 }
3823 RETURN;
3824
3825nope:
3826 if (!errno)
93189314 3827 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3828 if (GIMME == G_ARRAY)
3829 RETURN;
3830 else
3831 RETPUSHUNDEF;
3832#else
cea2e8a9 3833 DIE(aTHX_ PL_no_dir_func, "readdir");
a0d0e21e
LW		 3834#endif
3835}
3836
3837PP(pp_telldir)
3838{
a0d0e21e 3839#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3840 dSP; dTARGET;
968dcd91
JH		 3841 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3842 /* XXX netbsd still seemed to.
3843 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3844 --JHI 1999-Feb-02 */
3845# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3846 long telldir (DIR *);
dfe9444c 3847# endif
a0d0e21e
LW		 3848 GV *gv = (GV*)POPs;
3849 register IO *io = GvIOn(gv);
3850
3851 if (!io || !IoDIRP(io))
3852 goto nope;
3853
6ad3d225 3854 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3855 RETURN;
3856nope:
3857 if (!errno)
93189314 3858 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3859 RETPUSHUNDEF;
3860#else
cea2e8a9 3861 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3862#endif
3863}
3864
3865PP(pp_seekdir)
3866{
a0d0e21e 3867#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3868 dSP;
a0d0e21e
LW		 3869 long along = POPl;
3870 GV *gv = (GV*)POPs;
3871 register IO *io = GvIOn(gv);
3872
3873 if (!io || !IoDIRP(io))
3874 goto nope;
3875
6ad3d225 3876 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3877
3878 RETPUSHYES;
3879nope:
3880 if (!errno)
93189314 3881 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3882 RETPUSHUNDEF;
3883#else
cea2e8a9 3884 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3885#endif
3886}
3887
3888PP(pp_rewinddir)
3889{
a0d0e21e 3890#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3891 dSP;
a0d0e21e
LW		 3892 GV *gv = (GV*)POPs;
3893 register IO *io = GvIOn(gv);
3894
3895 if (!io || !IoDIRP(io))
3896 goto nope;
3897
6ad3d225 3898 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3899 RETPUSHYES;
3900nope:
3901 if (!errno)
93189314 3902 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3903 RETPUSHUNDEF;
3904#else
cea2e8a9 3905 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3906#endif
3907}
3908
3909PP(pp_closedir)
3910{
a0d0e21e 3911#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3912 dSP;
a0d0e21e
LW		 3913 GV *gv = (GV*)POPs;
3914 register IO *io = GvIOn(gv);
3915
3916 if (!io || !IoDIRP(io))
3917 goto nope;
3918
3919#ifdef VOID_CLOSEDIR
6ad3d225 3920 PerlDir_close(IoDIRP(io));
a0d0e21e 3921#else
6ad3d225 3922 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3923 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3924 goto nope;
748a9306 3925 }
a0d0e21e
LW		 3926#endif
3927 IoDIRP(io) = 0;
3928
3929 RETPUSHYES;
3930nope:
3931 if (!errno)
93189314 3932 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3933 RETPUSHUNDEF;
3934#else
cea2e8a9 3935 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3936#endif
3937}
3938
3939/* Process control. */
3940
3941PP(pp_fork)
3942{
44a8e56a 3943#ifdef HAS_FORK
39644a26 3944 dSP; dTARGET;
761237fe 3945 Pid_t childpid;
a0d0e21e
LW		 3946 GV *tmpgv;
3947
3948 EXTEND(SP, 1);
45bc9206 3949 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3950 childpid = PerlProc_fork();
a0d0e21e
LW		 3951 if (childpid < 0)
3952 RETSETUNDEF;
3953 if (!childpid) {
3954 /*SUPPRESS 560*/
306196c3
MS		 3955 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3956 SvREADONLY_off(GvSV(tmpgv));
146174a9 3957 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3958 SvREADONLY_on(GvSV(tmpgv));
3959 }
4d76a344
RGS		 3960#ifdef THREADS_HAVE_PIDS
3961 PL_ppid = (IV)getppid();
3962#endif
3280af22 3963 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 3964 }
3965 PUSHi(childpid);
3966 RETURN;
3967#else
146174a9 3968# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3969 dSP; dTARGET;
146174a9
CB		 3970 Pid_t childpid;
3971
3972 EXTEND(SP, 1);
3973 PERL_FLUSHALL_FOR_CHILD;
3974 childpid = PerlProc_fork();
60fa28ff
GS		 3975 if (childpid == -1)
3976 RETSETUNDEF;
146174a9
CB		 3977 PUSHi(childpid);
3978 RETURN;
3979# else
0322a713 3980 DIE(aTHX_ PL_no_func, "fork");
146174a9 3981# endif
a0d0e21e
LW		 3982#endif
3983}
3984
3985PP(pp_wait)
3986{
301e8125 3987#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3988 dSP; dTARGET;
761237fe 3989 Pid_t childpid;
a0d0e21e 3990 int argflags;
a0d0e21e 3991
0a0ada86 3992#ifdef PERL_OLD_SIGNALS
44a8e56a 3993 childpid = wait4pid(-1, &argflags, 0);
0a0ada86
NIS		 3994#else
3995 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && errno == EINTR) {
3996 PERL_ASYNC_CHECK();
3997 }
3998#endif
68a29c53
GS		 3999# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4000 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4001 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4002# else
f86702cc 4003 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4004# endif
44a8e56a 4005 XPUSHi(childpid);
a0d0e21e
LW		 4006 RETURN;
4007#else
0322a713 4008 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4009#endif
4010}
4011
4012PP(pp_waitpid)
4013{
301e8125 4014#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4015 dSP; dTARGET;
761237fe 4016 Pid_t childpid;
a0d0e21e
LW		 4017 int optype;
4018 int argflags;
a0d0e21e 4019
a0d0e21e
LW		 4020 optype = POPi;
4021 childpid = TOPi;
0a0ada86 4022#ifdef PERL_OLD_SIGNALS
a0d0e21e 4023 childpid = wait4pid(childpid, &argflags, optype);
0a0ada86
NIS		 4024#else
4025 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 && errno == EINTR) {
4026 PERL_ASYNC_CHECK();
4027 }
4028#endif
68a29c53
GS		 4029# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4030 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4031 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4032# else
f86702cc 4033 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4034# endif
44a8e56a 4035 SETi(childpid);
a0d0e21e
LW		 4036 RETURN;
4037#else
0322a713 4038 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4039#endif
4040}
4041
4042PP(pp_system)
4043{
39644a26 4044 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4045 I32 value;
2d8e6c8d 4046 STRLEN n_a;
76ffd3b9 4047 int result;
e7766f89 4048 I32 did_pipes = 0;
a0d0e21e 4049
bbd7eb8a
RD		 4050 if (PL_tainting) {
4051 TAINT_ENV();
4052 while (++MARK <= SP) {
4053 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4054 if (PL_tainted)
bbd7eb8a
RD		 4055 break;
4056 }
4057 MARK = ORIGMARK;
5a445156 4058 TAINT_PROPER("system");
a0d0e21e 4059 }
45bc9206 4060 PERL_FLUSHALL_FOR_CHILD;
273b0206 4061#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4062 {
eb160463
GS		 4063 Pid_t childpid;
4064 int pp[2];
4065
4066 if (PerlProc_pipe(pp) >= 0)
4067 did_pipes = 1;
4068 while ((childpid = PerlProc_fork()) == -1) {
4069 if (errno != EAGAIN) {
4070 value = -1;
4071 SP = ORIGMARK;
4072 PUSHi(value);
4073 if (did_pipes) {
4074 PerlLIO_close(pp[0]);
4075 PerlLIO_close(pp[1]);
4076 }
4077 RETURN;
4078 }
4079 sleep(5);
4080 }
4081 if (childpid > 0) {
4082 Sigsave_t ihand,qhand; /* place to save signals during system() */
4083 int status;
4084
4085 if (did_pipes)
4086 PerlLIO_close(pp[1]);
64ca3a65 4087#ifndef PERL_MICRO
eb160463
GS		 4088 rsignal_save(SIGINT, SIG_IGN, &ihand);
4089 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4090#endif
eb160463
GS		 4091 do {
4092 result = wait4pid(childpid, &status, 0);
4093 } while (result == -1 && errno == EINTR);
64ca3a65 4094#ifndef PERL_MICRO
eb160463
GS		 4095 (void)rsignal_restore(SIGINT, &ihand);
4096 (void)rsignal_restore(SIGQUIT, &qhand);
4097#endif
4098 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4099 do_execfree(); /* free any memory child malloced on fork */
4100 SP = ORIGMARK;
4101 if (did_pipes) {
4102 int errkid;
4103 int n = 0, n1;
4104
4105 while (n < sizeof(int)) {
4106 n1 = PerlLIO_read(pp[0],
4107 (void*)(((char*)&errkid)+n),
4108 (sizeof(int)) - n);
4109 if (n1 <= 0)
4110 break;
4111 n += n1;
4112 }
4113 PerlLIO_close(pp[0]);
4114 if (n) { /* Error */
4115 if (n != sizeof(int))
4116 DIE(aTHX_ "panic: kid popen errno read");
4117 errno = errkid; /* Propagate errno from kid */
4118 STATUS_CURRENT = -1;
4119 }
4120 }
4121 PUSHi(STATUS_CURRENT);
4122 RETURN;
4123 }
4124 if (did_pipes) {
4125 PerlLIO_close(pp[0]);
d5a9bfb0 4126#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4127 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4128#endif
eb160463 4129 }
e0a1f643
JH		 4130 if (PL_op->op_flags & OPf_STACKED) {
4131 SV *really = *++MARK;
4132 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4133 }
4134 else if (SP - MARK != 1)
4135 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4136 else {
4137 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4138 }
4139 PerlProc__exit(-1);
d5a9bfb0 4140 }
c3293030 4141#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4142 PL_statusvalue = 0;
4143 result = 0;
911d147d 4144 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4145 SV *really = *++MARK;
54725af6
GS		 4146# ifdef WIN32
4147 value = (I32)do_aspawn(really, MARK, SP);
4148# else
c5be433b 4149 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4150# endif
a0d0e21e 4151 }
54725af6
GS		 4152 else if (SP - MARK != 1) {
4153# ifdef WIN32
4154 value = (I32)do_aspawn(Nullsv, MARK, SP);
4155# else
c5be433b 4156 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4157# endif
4158 }
a0d0e21e 4159 else {
c5be433b 4160 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4161 }
922b1888
GS		 4162 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4163 result = 1;
f86702cc 4164 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4165 do_execfree();
4166 SP = ORIGMARK;
922b1888 4167 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4168#endif /* !FORK or VMS */
4169 RETURN;
4170}
4171
4172PP(pp_exec)
4173{
39644a26 4174 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4175 I32 value;
2d8e6c8d 4176 STRLEN n_a;
a0d0e21e 4177
bbd7eb8a
RD		 4178 if (PL_tainting) {
4179 TAINT_ENV();
4180 while (++MARK <= SP) {
4181 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4182 if (PL_tainted)
bbd7eb8a
RD		 4183 break;
4184 }
4185 MARK = ORIGMARK;
5a445156 4186 TAINT_PROPER("exec");
bbd7eb8a 4187 }
45bc9206 4188 PERL_FLUSHALL_FOR_CHILD;
533c011a 4189 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4190 SV *really = *++MARK;
4191 value = (I32)do_aexec(really, MARK, SP);
4192 }
4193 else if (SP - MARK != 1)
4194#ifdef VMS
4195 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4196#else
092bebab
JH		 4197# ifdef __OPEN_VM
4198 {
c5be433b 4199 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4200 value = 0;
4201 }
4202# else
a0d0e21e 4203 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4204# endif
a0d0e21e
LW		 4205#endif
4206 else {
a0d0e21e 4207#ifdef VMS
2d8e6c8d 4208 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4209#else
092bebab 4210# ifdef __OPEN_VM
c5be433b 4211 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4212 value = 0;
4213# else
2d8e6c8d 4214 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4215# endif
a0d0e21e
LW		 4216#endif
4217 }
146174a9 4218
a0d0e21e
LW		 4219 SP = ORIGMARK;
4220 PUSHi(value);
4221 RETURN;
4222}
4223
4224PP(pp_kill)
4225{
9cad6237 4226#ifdef HAS_KILL
39644a26 4227 dSP; dMARK; dTARGET;
a0d0e21e 4228 I32 value;
533c011a 4229 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4230 SP = MARK;
4231 PUSHi(value);
4232 RETURN;
4233#else
0322a713 4234 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4235#endif
4236}
4237
4238PP(pp_getppid)
4239{
4240#ifdef HAS_GETPPID
39644a26 4241 dSP; dTARGET;
4d76a344
RGS		 4242# ifdef THREADS_HAVE_PIDS
4243 XPUSHi( PL_ppid );
4244# else
a0d0e21e 4245 XPUSHi( getppid() );
4d76a344 4246# endif
a0d0e21e
LW		 4247 RETURN;
4248#else
cea2e8a9 4249 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4250#endif
4251}
4252
4253PP(pp_getpgrp)
4254{
4255#ifdef HAS_GETPGRP
39644a26 4256 dSP; dTARGET;
d8a83dd3 4257 Pid_t pid;
9853a804 4258 Pid_t pgrp;
a0d0e21e
LW		 4259
4260 if (MAXARG < 1)
4261 pid = 0;
4262 else
4263 pid = SvIVx(POPs);
c3293030 4264#ifdef BSD_GETPGRP
9853a804 4265 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4266#else
146174a9 4267 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4268 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4269 pgrp = getpgrp();
a0d0e21e 4270#endif
9853a804 4271 XPUSHi(pgrp);
a0d0e21e
LW		 4272 RETURN;
4273#else
cea2e8a9 4274 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4275#endif
4276}
4277
4278PP(pp_setpgrp)
4279{
4280#ifdef HAS_SETPGRP
39644a26 4281 dSP; dTARGET;
d8a83dd3
JH		 4282 Pid_t pgrp;
4283 Pid_t pid;
a0d0e21e
LW		 4284 if (MAXARG < 2) {
4285 pgrp = 0;
4286 pid = 0;
4287 }
4288 else {
4289 pgrp = POPi;
4290 pid = TOPi;
4291 }
4292
4293 TAINT_PROPER("setpgrp");
c3293030
IZ		 4294#ifdef BSD_SETPGRP
4295 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4296#else
146174a9
CB		 4297 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4298 || (pid != 0 && pid != PerlProc_getpid()))
4299 {
4300 DIE(aTHX_ "setpgrp can't take arguments");
4301 }
a0d0e21e
LW		 4302 SETi( setpgrp() >= 0 );
4303#endif /* USE_BSDPGRP */
4304 RETURN;
4305#else
cea2e8a9 4306 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4307#endif
4308}
4309
4310PP(pp_getpriority)
4311{
a0d0e21e 4312#ifdef HAS_GETPRIORITY
9cad6237 4313 dSP; dTARGET;
d05c1ba0
JH		 4314 int who = POPi;
4315 int which = TOPi;
a0d0e21e
LW		 4316 SETi( getpriority(which, who) );
4317 RETURN;
4318#else
cea2e8a9 4319 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4320#endif
4321}
4322
4323PP(pp_setpriority)
4324{
a0d0e21e 4325#ifdef HAS_SETPRIORITY
9cad6237 4326 dSP; dTARGET;
d05c1ba0
JH		 4327 int niceval = POPi;
4328 int who = POPi;
4329 int which = TOPi;
a0d0e21e
LW		 4330 TAINT_PROPER("setpriority");
4331 SETi( setpriority(which, who, niceval) >= 0 );
4332 RETURN;
4333#else
cea2e8a9 4334 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4335#endif
4336}
4337
4338/* Time calls. */
4339
4340PP(pp_time)
4341{
39644a26 4342 dSP; dTARGET;
cbdc8872 4343#ifdef BIG_TIME
4344 XPUSHn( time(Null(Time_t*)) );
4345#else
a0d0e21e 4346 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4347#endif
a0d0e21e
LW		 4348 RETURN;
4349}
4350
a0d0e21e
LW		 4351PP(pp_tms)
4352{
9cad6237 4353#ifdef HAS_TIMES
39644a26 4354 dSP;
a0d0e21e 4355 EXTEND(SP, 4);
a0d0e21e 4356#ifndef VMS
3280af22 4357 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4358#else
6b88bc9c 4359 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4360 /* struct tms, though same data */
4361 /* is returned. */
a0d0e21e
LW		 4362#endif
4363
5311654c 4364 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4365 if (GIMME == G_ARRAY) {
5311654c
JH		 4366 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4367 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4368 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4369 }
4370 RETURN;
9cad6237
JH		 4371#else
4372 DIE(aTHX_ "times not implemented");
55497cff 4373#endif /* HAS_TIMES */
a0d0e21e
LW		 4374}
4375
4376PP(pp_localtime)
4377{
cea2e8a9 4378 return pp_gmtime();
a0d0e21e
LW		 4379}
4380
4381PP(pp_gmtime)
4382{
39644a26 4383 dSP;
a0d0e21e
LW		 4384 Time_t when;
4385 struct tm *tmbuf;
4386 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4387 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4388 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4389
4390 if (MAXARG < 1)
4391 (void)time(&when);
4392 else
cbdc8872 4393#ifdef BIG_TIME
4394 when = (Time_t)SvNVx(POPs);
4395#else
a0d0e21e 4396 when = (Time_t)SvIVx(POPs);
cbdc8872 4397#endif
a0d0e21e 4398
533c011a 4399 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4400 tmbuf = localtime(&when);
4401 else
4402 tmbuf = gmtime(&when);
4403
a0d0e21e 4404 if (GIMME != G_ARRAY) {
46fc3d4c 4405 SV *tsv;
9a5ff6d9
AB		 4406 EXTEND(SP, 1);
4407 EXTEND_MORTAL(1);
a0d0e21e
LW		 4408 if (!tmbuf)
4409 RETPUSHUNDEF;
be28567c 4410 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4411 dayname[tmbuf->tm_wday],
4412 monname[tmbuf->tm_mon],
be28567c
GS		 4413 tmbuf->tm_mday,
4414 tmbuf->tm_hour,
4415 tmbuf->tm_min,
4416 tmbuf->tm_sec,
4417 tmbuf->tm_year + 1900);
46fc3d4c 4418 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4419 }
4420 else if (tmbuf) {
9a5ff6d9
AB		 4421 EXTEND(SP, 9);
4422 EXTEND_MORTAL(9);
4423 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4424 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4425 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4426 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4427 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4428 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4429 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4430 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4431 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4432 }
4433 RETURN;
4434}
4435
4436PP(pp_alarm)
4437{
9cad6237 4438#ifdef HAS_ALARM
39644a26 4439 dSP; dTARGET;
a0d0e21e 4440 int anum;
a0d0e21e
LW		 4441 anum = POPi;
4442 anum = alarm((unsigned int)anum);
4443 EXTEND(SP, 1);
4444 if (anum < 0)
4445 RETPUSHUNDEF;
c6419e06 4446 PUSHi(anum);
a0d0e21e
LW		 4447 RETURN;
4448#else
0322a713 4449 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4450#endif
4451}
4452
4453PP(pp_sleep)
4454{
39644a26 4455 dSP; dTARGET;
a0d0e21e
LW		 4456 I32 duration;
4457 Time_t lasttime;
4458 Time_t when;
4459
4460 (void)time(&lasttime);
4461 if (MAXARG < 1)
76e3520e 4462 PerlProc_pause();
a0d0e21e
LW		 4463 else {
4464 duration = POPi;
76e3520e 4465 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4466 }
4467 (void)time(&when);
4468 XPUSHi(when - lasttime);
4469 RETURN;
4470}
4471
4472/* Shared memory. */
4473
4474PP(pp_shmget)
4475{
cea2e8a9 4476 return pp_semget();
a0d0e21e
LW		 4477}
4478
4479PP(pp_shmctl)
4480{
cea2e8a9 4481 return pp_semctl();
a0d0e21e
LW		 4482}
4483
4484PP(pp_shmread)
4485{
cea2e8a9 4486 return pp_shmwrite();
a0d0e21e
LW		 4487}
4488
4489PP(pp_shmwrite)
4490{
4491#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4492 dSP; dMARK; dTARGET;
533c011a 4493 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4494 SP = MARK;
4495 PUSHi(value);
4496 RETURN;
4497#else
cea2e8a9 4498 return pp_semget();
a0d0e21e
LW		 4499#endif
4500}
4501
4502/* Message passing. */
4503
4504PP(pp_msgget)
4505{
cea2e8a9 4506 return pp_semget();
a0d0e21e
LW		 4507}
4508
4509PP(pp_msgctl)
4510{
cea2e8a9 4511 return pp_semctl();
a0d0e21e
LW		 4512}
4513
4514PP(pp_msgsnd)
4515{
4516#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4517 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4518 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4519 SP = MARK;
4520 PUSHi(value);
4521 RETURN;
4522#else
cea2e8a9 4523 return pp_semget();
a0d0e21e
LW		 4524#endif
4525}
4526
4527PP(pp_msgrcv)
4528{
4529#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4530 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4531 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4532 SP = MARK;
4533 PUSHi(value);
4534 RETURN;
4535#else
cea2e8a9 4536 return pp_semget();
a0d0e21e
LW		 4537#endif
4538}
4539
4540/* Semaphores. */
4541
4542PP(pp_semget)
4543{
4544#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4545 dSP; dMARK; dTARGET;
533c011a 4546 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4547 SP = MARK;
4548 if (anum == -1)
4549 RETPUSHUNDEF;
4550 PUSHi(anum);
4551 RETURN;
4552#else
cea2e8a9 4553 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4554#endif
4555}
4556
4557PP(pp_semctl)
4558{
4559#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4560 dSP; dMARK; dTARGET;
533c011a 4561 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4562 SP = MARK;
4563 if (anum == -1)
4564 RETSETUNDEF;
4565 if (anum != 0) {
4566 PUSHi(anum);
4567 }
4568 else {
8903cb82 4569 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4570 }
4571 RETURN;
4572#else
cea2e8a9 4573 return pp_semget();
a0d0e21e
LW		 4574#endif
4575}
4576
4577PP(pp_semop)
4578{
4579#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4580 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4581 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4582 SP = MARK;
4583 PUSHi(value);
4584 RETURN;
4585#else
cea2e8a9 4586 return pp_semget();
a0d0e21e
LW		 4587#endif
4588}
4589
4590/* Get system info. */
4591
4592PP(pp_ghbyname)
4593{
693762b4 4594#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4595 return pp_ghostent();
a0d0e21e 4596#else
cea2e8a9 4597 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4598#endif
4599}
4600
4601PP(pp_ghbyaddr)
4602{
693762b4 4603#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4604 return pp_ghostent();
a0d0e21e 4605#else
cea2e8a9 4606 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4607#endif
4608}
4609
4610PP(pp_ghostent)
4611{
693762b4 4612#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4613 dSP;
533c011a 4614 I32 which = PL_op->op_type;
a0d0e21e
LW		 4615 register char **elem;
4616 register SV *sv;
dc45a647 4617#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4618 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4619 struct hostent *gethostbyname(Netdb_name_t);
4620 struct hostent *gethostent(void);
a0d0e21e
LW		 4621#endif
4622 struct hostent *hent;
4623 unsigned long len;
2d8e6c8d 4624 STRLEN n_a;
a0d0e21e
LW		 4625
4626 EXTEND(SP, 10);
edd309b7 4627 if (which == OP_GHBYNAME) {
dc45a647 4628#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4629 char* name = POPpbytex;
4630 hent = PerlSock_gethostbyname(name);
dc45a647 4631#else
cea2e8a9 4632 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4633#endif
edd309b7 4634 }
a0d0e21e 4635 else if (which == OP_GHBYADDR) {
dc45a647 4636#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4637 int addrtype = POPi;
748a9306 4638 SV *addrsv = POPs;
a0d0e21e 4639 STRLEN addrlen;
595ae481 4640 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4641
4599a1de 4642 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4643#else
cea2e8a9 4644 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4645#endif
a0d0e21e
LW		 4646 }
4647 else
4648#ifdef HAS_GETHOSTENT
6ad3d225 4649 hent = PerlSock_gethostent();
a0d0e21e 4650#else
cea2e8a9 4651 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4652#endif
4653
4654#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4655 if (!hent) {
4656#ifdef USE_REENTRANT_API
4657# ifdef USE_GETHOSTENT_ERRNO
4658 h_errno = PL_reentrant_buffer->_gethostent_errno;
4659# endif
4660#endif
4661 STATUS_NATIVE_SET(h_errno);
4662 }
a0d0e21e
LW		 4663#endif
4664
4665 if (GIMME != G_ARRAY) {
4666 PUSHs(sv = sv_newmortal());
4667 if (hent) {
4668 if (which == OP_GHBYNAME) {
fd0af264 4669 if (hent->h_addr)
4670 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4671 }
4672 else
4673 sv_setpv(sv, (char*)hent->h_name);
4674 }
4675 RETURN;
4676 }
4677
4678 if (hent) {
3280af22 4679 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4680 sv_setpv(sv, (char*)hent->h_name);
3280af22 4681 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4682 for (elem = hent->h_aliases; elem && *elem; elem++) {
4683 sv_catpv(sv, *elem);
4684 if (elem[1])
4685 sv_catpvn(sv, " ", 1);
4686 }
3280af22 4687 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4688 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4689 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4690 len = hent->h_length;
1e422769 4691 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4692#ifdef h_addr
4693 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4694 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4695 sv_setpvn(sv, *elem, len);
4696 }
4697#else
6b88bc9c 4698 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4699 if (hent->h_addr)
4700 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4701#endif /* h_addr */
4702 }
4703 RETURN;
4704#else
cea2e8a9 4705 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4706#endif
4707}
4708
4709PP(pp_gnbyname)
4710{
693762b4 4711#ifdef HAS_GETNETBYNAME
cea2e8a9 4712 return pp_gnetent();
a0d0e21e 4713#else
cea2e8a9 4714 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4715#endif
4716}
4717
4718PP(pp_gnbyaddr)
4719{
693762b4 4720#ifdef HAS_GETNETBYADDR
cea2e8a9 4721 return pp_gnetent();
a0d0e21e 4722#else
cea2e8a9 4723 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4724#endif
4725}
4726
4727PP(pp_gnetent)
4728{
693762b4 4729#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4730 dSP;
533c011a 4731 I32 which = PL_op->op_type;
a0d0e21e
LW		 4732 register char **elem;
4733 register SV *sv;
dc45a647 4734#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4735 struct netent *getnetbyaddr(Netdb_net_t, int);
4736 struct netent *getnetbyname(Netdb_name_t);
4737 struct netent *getnetent(void);
8ac85365 4738#endif
a0d0e21e 4739 struct netent *nent;
2d8e6c8d 4740 STRLEN n_a;
a0d0e21e 4741
edd309b7 4742 if (which == OP_GNBYNAME){
dc45a647 4743#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4744 char *name = POPpbytex;
4745 nent = PerlSock_getnetbyname(name);
dc45a647 4746#else
cea2e8a9 4747 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4748#endif
edd309b7 4749 }
a0d0e21e 4750 else if (which == OP_GNBYADDR) {
dc45a647 4751#ifdef HAS_GETNETBYADDR
a0d0e21e 4752 int addrtype = POPi;
3bb7c1b4 4753 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4754 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4755#else
cea2e8a9 4756 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4757#endif
a0d0e21e
LW		 4758 }
4759 else
dc45a647 4760#ifdef HAS_GETNETENT
76e3520e 4761 nent = PerlSock_getnetent();
dc45a647 4762#else
cea2e8a9 4763 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4764#endif
a0d0e21e 4765
10bc17b6
JH		 4766#ifdef HOST_NOT_FOUND
4767 if (!nent) {
4768#ifdef USE_REENTRANT_API
4769# ifdef USE_GETNETENT_ERRNO
4770 h_errno = PL_reentrant_buffer->_getnetent_errno;
4771# endif
4772#endif
4773 STATUS_NATIVE_SET(h_errno);
4774 }
4775#endif
4776
a0d0e21e
LW		 4777 EXTEND(SP, 4);
4778 if (GIMME != G_ARRAY) {
4779 PUSHs(sv = sv_newmortal());
4780 if (nent) {
4781 if (which == OP_GNBYNAME)
1e422769 4782 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4783 else
4784 sv_setpv(sv, nent->n_name);
4785 }
4786 RETURN;
4787 }
4788
4789 if (nent) {
3280af22 4790 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4791 sv_setpv(sv, nent->n_name);
3280af22 4792 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4793 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4794 sv_catpv(sv, *elem);
4795 if (elem[1])
4796 sv_catpvn(sv, " ", 1);
4797 }
3280af22 4798 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4799 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4800 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4801 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4802 }
4803
4804 RETURN;
4805#else
cea2e8a9 4806 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4807#endif
4808}
4809
4810PP(pp_gpbyname)
4811{
693762b4 4812#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4813 return pp_gprotoent();
a0d0e21e 4814#else
cea2e8a9 4815 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4816#endif
4817}
4818
4819PP(pp_gpbynumber)
4820{
693762b4 4821#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4822 return pp_gprotoent();
a0d0e21e 4823#else
cea2e8a9 4824 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4825#endif
4826}
4827
4828PP(pp_gprotoent)
4829{
693762b4 4830#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4831 dSP;
533c011a 4832 I32 which = PL_op->op_type;
a0d0e21e 4833 register char **elem;
301e8125 4834 register SV *sv;
dc45a647 4835#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4836 struct protoent *getprotobyname(Netdb_name_t);
4837 struct protoent *getprotobynumber(int);
4838 struct protoent *getprotoent(void);
8ac85365 4839#endif
a0d0e21e 4840 struct protoent *pent;
2d8e6c8d 4841 STRLEN n_a;
a0d0e21e 4842
edd309b7 4843 if (which == OP_GPBYNAME) {
e5c9fcd0 4844#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4845 char* name = POPpbytex;
4846 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4847#else
cea2e8a9 4848 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4849#endif
edd309b7
JH		 4850 }
4851 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4852#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4853 int number = POPi;
4854 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4855#else
edd309b7 4856 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4857#endif
edd309b7 4858 }
a0d0e21e 4859 else
e5c9fcd0 4860#ifdef HAS_GETPROTOENT
6ad3d225 4861 pent = PerlSock_getprotoent();
e5c9fcd0 4862#else
cea2e8a9 4863 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4864#endif
a0d0e21e
LW		 4865
4866 EXTEND(SP, 3);
4867 if (GIMME != G_ARRAY) {
4868 PUSHs(sv = sv_newmortal());
4869 if (pent) {
4870 if (which == OP_GPBYNAME)
1e422769 4871 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4872 else
4873 sv_setpv(sv, pent->p_name);
4874 }
4875 RETURN;
4876 }
4877
4878 if (pent) {
3280af22 4879 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4880 sv_setpv(sv, pent->p_name);
3280af22 4881 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4882 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4883 sv_catpv(sv, *elem);
4884 if (elem[1])
4885 sv_catpvn(sv, " ", 1);
4886 }
3280af22 4887 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4888 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4889 }
4890
4891 RETURN;
4892#else
cea2e8a9 4893 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4894#endif
4895}
4896
4897PP(pp_gsbyname)
4898{
9ec75305 4899#ifdef HAS_GETSERVBYNAME
cea2e8a9 4900 return pp_gservent();
a0d0e21e 4901#else
cea2e8a9 4902 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4903#endif
4904}
4905
4906PP(pp_gsbyport)
4907{
9ec75305 4908#ifdef HAS_GETSERVBYPORT
cea2e8a9 4909 return pp_gservent();
a0d0e21e 4910#else
cea2e8a9 4911 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4912#endif
4913}
4914
4915PP(pp_gservent)
4916{
693762b4 4917#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4918 dSP;
533c011a 4919 I32 which = PL_op->op_type;
a0d0e21e
LW		 4920 register char **elem;
4921 register SV *sv;
dc45a647 4922#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4923 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4924 struct servent *getservbyport(int, Netdb_name_t);
4925 struct servent *getservent(void);
8ac85365 4926#endif
a0d0e21e 4927 struct servent *sent;
2d8e6c8d 4928 STRLEN n_a;
a0d0e21e
LW		 4929
4930 if (which == OP_GSBYNAME) {
dc45a647 4931#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4932 char *proto = POPpbytex;
4933 char *name = POPpbytex;
a0d0e21e
LW		 4934
4935 if (proto && !*proto)
4936 proto = Nullch;
4937
6ad3d225 4938 sent = PerlSock_getservbyname(name, proto);
dc45a647 4939#else
cea2e8a9 4940 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4941#endif
a0d0e21e
LW		 4942 }
4943 else if (which == OP_GSBYPORT) {
dc45a647 4944#ifdef HAS_GETSERVBYPORT
42e0c139 4945 char *proto = POPpbytex;
eb160463 4946 unsigned short port = (unsigned short)POPu;
a0d0e21e 4947
36477c24 4948#ifdef HAS_HTONS
6ad3d225 4949 port = PerlSock_htons(port);
36477c24 4950#endif
6ad3d225 4951 sent = PerlSock_getservbyport(port, proto);
dc45a647 4952#else
cea2e8a9 4953 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4954#endif
a0d0e21e
LW		 4955 }
4956 else
e5c9fcd0 4957#ifdef HAS_GETSERVENT
6ad3d225 4958 sent = PerlSock_getservent();
e5c9fcd0 4959#else
cea2e8a9 4960 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4961#endif
a0d0e21e
LW		 4962
4963 EXTEND(SP, 4);
4964 if (GIMME != G_ARRAY) {
4965 PUSHs(sv = sv_newmortal());
4966 if (sent) {
4967 if (which == OP_GSBYNAME) {
4968#ifdef HAS_NTOHS
6ad3d225 4969 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4970#else
1e422769 4971 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4972#endif
4973 }
4974 else
4975 sv_setpv(sv, sent->s_name);
4976 }
4977 RETURN;
4978 }
4979
4980 if (sent) {
3280af22 4981 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4982 sv_setpv(sv, sent->s_name);
3280af22 4983 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4984 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4985 sv_catpv(sv, *elem);
4986 if (elem[1])
4987 sv_catpvn(sv, " ", 1);
4988 }
3280af22 4989 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4990#ifdef HAS_NTOHS
76e3520e 4991 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4992#else
1e422769 4993 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 4994#endif
3280af22 4995 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4996 sv_setpv(sv, sent->s_proto);
4997 }
4998
4999 RETURN;
5000#else
cea2e8a9 5001 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5002#endif
5003}
5004
5005PP(pp_shostent)
5006{
693762b4 5007#ifdef HAS_SETHOSTENT
9cad6237 5008 dSP;
76e3520e 5009 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5010 RETSETYES;
5011#else
cea2e8a9 5012 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5013#endif
5014}
5015
5016PP(pp_snetent)
5017{
693762b4 5018#ifdef HAS_SETNETENT
9cad6237 5019 dSP;
76e3520e 5020 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5021 RETSETYES;
5022#else
cea2e8a9 5023 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5024#endif
5025}
5026
5027PP(pp_sprotoent)
5028{
693762b4 5029#ifdef HAS_SETPROTOENT
9cad6237 5030 dSP;
76e3520e 5031 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5032 RETSETYES;
5033#else
cea2e8a9 5034 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5035#endif
5036}
5037
5038PP(pp_sservent)
5039{
693762b4 5040#ifdef HAS_SETSERVENT
9cad6237 5041 dSP;
76e3520e 5042 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5043 RETSETYES;
5044#else
cea2e8a9 5045 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5046#endif
5047}
5048
5049PP(pp_ehostent)
5050{
693762b4 5051#ifdef HAS_ENDHOSTENT
9cad6237 5052 dSP;
76e3520e 5053 PerlSock_endhostent();
924508f0 5054 EXTEND(SP,1);
a0d0e21e
LW		 5055 RETPUSHYES;
5056#else
cea2e8a9 5057 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5058#endif
5059}
5060
5061PP(pp_enetent)
5062{
693762b4 5063#ifdef HAS_ENDNETENT
9cad6237 5064 dSP;
76e3520e 5065 PerlSock_endnetent();
924508f0 5066 EXTEND(SP,1);
a0d0e21e
LW		 5067 RETPUSHYES;
5068#else
cea2e8a9 5069 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5070#endif
5071}
5072
5073PP(pp_eprotoent)
5074{
693762b4 5075#ifdef HAS_ENDPROTOENT
9cad6237 5076 dSP;
76e3520e 5077 PerlSock_endprotoent();
924508f0 5078 EXTEND(SP,1);
a0d0e21e
LW		 5079 RETPUSHYES;
5080#else
cea2e8a9 5081 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5082#endif
5083}
5084
5085PP(pp_eservent)
5086{
693762b4 5087#ifdef HAS_ENDSERVENT
9cad6237 5088 dSP;
76e3520e 5089 PerlSock_endservent();
924508f0 5090 EXTEND(SP,1);
a0d0e21e
LW		 5091 RETPUSHYES;
5092#else
cea2e8a9 5093 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5094#endif
5095}
5096
5097PP(pp_gpwnam)
5098{
5099#ifdef HAS_PASSWD
cea2e8a9 5100 return pp_gpwent();
a0d0e21e 5101#else
cea2e8a9 5102 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5103#endif
5104}
5105
5106PP(pp_gpwuid)
5107{
5108#ifdef HAS_PASSWD
cea2e8a9 5109 return pp_gpwent();
a0d0e21e 5110#else
cea2e8a9 5111 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5112#endif
5113}
5114
5115PP(pp_gpwent)
5116{
0994c4d0 5117#ifdef HAS_PASSWD
9cad6237 5118 dSP;
533c011a 5119 I32 which = PL_op->op_type;
a0d0e21e 5120 register SV *sv;
2d8e6c8d 5121 STRLEN n_a;
e3aefe8d 5122 struct passwd *pwent = NULL;
301e8125 5123 /*
bcf53261
JH		 5124 * We currently support only the SysV getsp* shadow password interface.
5125 * The interface is declared in <shadow.h> and often one needs to link
5126 * with -lsecurity or some such.
5127 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5128 * (and SCO?)
5129 *
5130 * AIX getpwnam() is clever enough to return the encrypted password
5131 * only if the caller (euid?) is root.
5132 *
5133 * There are at least two other shadow password APIs. Many platforms
5134 * seem to contain more than one interface for accessing the shadow
5135 * password databases, possibly for compatibility reasons.
3813c136 5136 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5137 * are much more complicated, but also very similar to each other.
5138 *
5139 * <sys/types.h>
5140 * <sys/security.h>
5141 * <prot.h>
5142 * struct pr_passwd *getprpw*();
5143 * The password is in
3813c136
JH		 5144 * char getprpw*(...).ufld.fd_encrypt[]
5145 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5146 *
5147 * <sys/types.h>
5148 * <sys/security.h>
5149 * <prot.h>
5150 * struct es_passwd *getespw*();
5151 * The password is in
5152 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5153 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5154 *
3813c136 5155 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5156 *
5157 * In HP-UX for getprpw*() the manual page claims that one should include
5158 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5159 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5160 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5161 *
5162 * Note that <sys/security.h> is already probed for, but currently
5163 * it is only included in special cases.
301e8125 5164 *
bcf53261
JH		 5165 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5166 * be preferred interface, even though also the getprpw*() interface
5167 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5168 * One also needs to call set_auth_parameters() in main() before
5169 * doing anything else, whether one is using getespw*() or getprpw*().
5170 *
5171 * Note that accessing the shadow databases can be magnitudes
5172 * slower than accessing the standard databases.
bcf53261
JH		 5173 *
5174 * --jhi
5175 */
a0d0e21e 5176
e3aefe8d
JH		 5177 switch (which) {
5178 case OP_GPWNAM:
edd309b7
JH		 5179 {
5180 char* name = POPpbytex;
5181 pwent = getpwnam(name);
5182 }
5183 break;
e3aefe8d 5184 case OP_GPWUID:
edd309b7
JH		 5185 {
5186 Uid_t uid = POPi;
5187 pwent = getpwuid(uid);
5188 }
e3aefe8d
JH		 5189 break;
5190 case OP_GPWENT:
1883634f 5191# ifdef HAS_GETPWENT
e3aefe8d 5192 pwent = getpwent();
faea9016
IRC		 5193#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5194 if (pwent) pwent = getpwnam(pwent->pw_name);
5195#endif
1883634f 5196# else
a45d1c96 5197 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5198# endif
e3aefe8d
JH		 5199 break;
5200 }
8c0bfa08 5201
a0d0e21e
LW		 5202 EXTEND(SP, 10);
5203 if (GIMME != G_ARRAY) {
5204 PUSHs(sv = sv_newmortal());
5205 if (pwent) {
5206 if (which == OP_GPWNAM)
1883634f 5207# if Uid_t_sign <= 0
1e422769 5208 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5209# else
23dcd6c8 5210 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5211# endif
a0d0e21e
LW		 5212 else
5213 sv_setpv(sv, pwent->pw_name);
5214 }
5215 RETURN;
5216 }
5217
5218 if (pwent) {
3280af22 5219 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5220 sv_setpv(sv, pwent->pw_name);
6ee623d5 5221
3280af22 5222 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5223 SvPOK_off(sv);
5224 /* If we have getspnam(), we try to dig up the shadow
5225 * password. If we are underprivileged, the shadow
5226 * interface will set the errno to EACCES or similar,
5227 * and return a null pointer. If this happens, we will
5228 * use the dummy password (usually "*" or "x") from the
5229 * standard password database.
5230 *
5231 * In theory we could skip the shadow call completely
5232 * if euid != 0 but in practice we cannot know which
5233 * security measures are guarding the shadow databases
5234 * on a random platform.
5235 *
5236 * Resist the urge to use additional shadow interfaces.
5237 * Divert the urge to writing an extension instead.
5238 *
5239 * --jhi */
e3aefe8d 5240# ifdef HAS_GETSPNAM
3813c136
JH		 5241 {
5242 struct spwd *spwent;
5243 int saverrno; /* Save and restore errno so that
5244 * underprivileged attempts seem
5245 * to have never made the unsccessful
5246 * attempt to retrieve the shadow password. */
5247
5248 saverrno = errno;
5249 spwent = getspnam(pwent->pw_name);
5250 errno = saverrno;
5251 if (spwent && spwent->sp_pwdp)
5252 sv_setpv(sv, spwent->sp_pwdp);
5253 }
f1066039 5254# endif
e020c87d 5255# ifdef PWPASSWD
3813c136
JH		 5256 if (!SvPOK(sv)) /* Use the standard password, then. */
5257 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5258# endif
3813c136 5259
1883634f 5260# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5261 /* passwd is tainted because user himself can diddle with it.
5262 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5263 SvTAINTED_on(sv);
1883634f 5264# endif
6ee623d5 5265
3280af22 5266 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5267# if Uid_t_sign <= 0
1e422769 5268 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5269# else
23dcd6c8 5270 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5271# endif
6ee623d5 5272
3280af22 5273 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5274# if Uid_t_sign <= 0
1e422769 5275 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5276# else
23dcd6c8 5277 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5278# endif
3813c136
JH		 5279 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5280 * because of the poor interface of the Perl getpw*(),
5281 * not because there's some standard/convention saying so.
5282 * A better interface would have been to return a hash,
5283 * but we are accursed by our history, alas. --jhi. */
3280af22 5284 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5285# ifdef PWCHANGE
1e422769 5286 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5287# else
1883634f
JH		 5288# ifdef PWQUOTA
5289 sv_setiv(sv, (IV)pwent->pw_quota);
5290# else
a1757be1 5291# ifdef PWAGE
a0d0e21e 5292 sv_setpv(sv, pwent->pw_age);
a1757be1 5293# endif
6ee623d5
GS		 5294# endif
5295# endif
6ee623d5 5296
3813c136
JH		 5297 /* pw_class and pw_comment are mutually exclusive--.
5298 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5299 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5300# ifdef PWCLASS
a0d0e21e 5301 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5302# else
5303# ifdef PWCOMMENT
a0d0e21e 5304 sv_setpv(sv, pwent->pw_comment);
1883634f 5305# endif
6ee623d5 5306# endif
6ee623d5 5307
3280af22 5308 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5309# ifdef PWGECOS
a0d0e21e 5310 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5311# endif
5312# ifndef INCOMPLETE_TAINTS
d2719217 5313 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5314 SvTAINTED_on(sv);
1883634f 5315# endif
6ee623d5 5316
3280af22 5317 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5318 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5319
3280af22 5320 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5321 sv_setpv(sv, pwent->pw_shell);
1883634f 5322# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5323 /* pw_shell is tainted because user himself can diddle with it. */
5324 SvTAINTED_on(sv);
1883634f 5325# endif
6ee623d5 5326
1883634f 5327# ifdef PWEXPIRE
6b88bc9c 5328 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5329 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5330# endif
a0d0e21e
LW		 5331 }
5332 RETURN;
5333#else
cea2e8a9 5334 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5335#endif
5336}
5337
5338PP(pp_spwent)
5339{
d493b042 5340#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5341 dSP;
a0d0e21e
LW		 5342 setpwent();
5343 RETPUSHYES;
5344#else
cea2e8a9 5345 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5346#endif
5347}
5348
5349PP(pp_epwent)
5350{
28e8609d 5351#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5352 dSP;
a0d0e21e
LW		 5353 endpwent();
5354 RETPUSHYES;
5355#else
cea2e8a9 5356 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5357#endif
5358}
5359
5360PP(pp_ggrnam)
5361{
5362#ifdef HAS_GROUP
cea2e8a9 5363 return pp_ggrent();
a0d0e21e 5364#else
cea2e8a9 5365 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5366#endif
5367}
5368
5369PP(pp_ggrgid)
5370{
5371#ifdef HAS_GROUP
cea2e8a9 5372 return pp_ggrent();
a0d0e21e 5373#else
cea2e8a9 5374 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5375#endif
5376}
5377
5378PP(pp_ggrent)
5379{
0994c4d0 5380#ifdef HAS_GROUP
9cad6237 5381 dSP;
533c011a 5382 I32 which = PL_op->op_type;
a0d0e21e
LW		 5383 register char **elem;
5384 register SV *sv;
5385 struct group *grent;
2d8e6c8d 5386 STRLEN n_a;
a0d0e21e 5387
edd309b7
JH		 5388 if (which == OP_GGRNAM) {
5389 char* name = POPpbytex;
5390 grent = (struct group *)getgrnam(name);
5391 }
5392 else if (which == OP_GGRGID) {
5393 Gid_t gid = POPi;
5394 grent = (struct group *)getgrgid(gid);
5395 }
a0d0e21e 5396 else
0994c4d0 5397#ifdef HAS_GETGRENT
a0d0e21e 5398 grent = (struct group *)getgrent();
0994c4d0
JH		 5399#else
5400 DIE(aTHX_ PL_no_func, "getgrent");
5401#endif
a0d0e21e
LW		 5402
5403 EXTEND(SP, 4);
5404 if (GIMME != G_ARRAY) {
5405 PUSHs(sv = sv_newmortal());
5406 if (grent) {
5407 if (which == OP_GGRNAM)
1e422769 5408 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5409 else
5410 sv_setpv(sv, grent->gr_name);
5411 }
5412 RETURN;
5413 }
5414
5415 if (grent) {
3280af22 5416 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5417 sv_setpv(sv, grent->gr_name);
28e8609d 5418
3280af22 5419 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5420#ifdef GRPASSWD
a0d0e21e 5421 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5422#endif
5423
3280af22 5424 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5425 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5426
5b56e7c5 5427#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5428 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5429 /* In UNICOS/mk (_CRAYMPP) the multithreading
5430 * versions (getgrnam_r, getgrgid_r)
5431 * seem to return an illegal pointer
5432 * as the group members list, gr_mem.
5433 * getgrent() doesn't even have a _r version
5434 * but the gr_mem is poisonous anyway.
5435 * So yes, you cannot get the list of group
5436 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5437 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5438 sv_catpv(sv, *elem);
5439 if (elem[1])
5440 sv_catpvn(sv, " ", 1);
5441 }
3d7e8424 5442#endif
a0d0e21e
LW		 5443 }
5444
5445 RETURN;
5446#else
cea2e8a9 5447 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5448#endif
5449}
5450
5451PP(pp_sgrent)
5452{
28e8609d 5453#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5454 dSP;
a0d0e21e
LW		 5455 setgrent();
5456 RETPUSHYES;
5457#else
cea2e8a9 5458 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5459#endif
5460}
5461
5462PP(pp_egrent)
5463{
28e8609d 5464#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5465 dSP;
a0d0e21e
LW		 5466 endgrent();
5467 RETPUSHYES;
5468#else
cea2e8a9 5469 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5470#endif
5471}
5472
5473PP(pp_getlogin)
5474{
a0d0e21e 5475#ifdef HAS_GETLOGIN
9cad6237 5476 dSP; dTARGET;
a0d0e21e
LW		 5477 char *tmps;
5478 EXTEND(SP, 1);
76e3520e 5479 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5480 RETPUSHUNDEF;
5481 PUSHp(tmps, strlen(tmps));
5482 RETURN;
5483#else
cea2e8a9 5484 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5485#endif
5486}
5487
5488/* Miscellaneous. */
5489
5490PP(pp_syscall)
5491{
d2719217 5492#ifdef HAS_SYSCALL
39644a26 5493 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5494 register I32 items = SP - MARK;
5495 unsigned long a[20];
5496 register I32 i = 0;
5497 I32 retval = -1;
2d8e6c8d 5498 STRLEN n_a;
a0d0e21e 5499
3280af22 5500 if (PL_tainting) {
a0d0e21e 5501 while (++MARK <= SP) {
bbce6d69 5502 if (SvTAINTED(*MARK)) {
5503 TAINT;
5504 break;
5505 }
a0d0e21e
LW		 5506 }
5507 MARK = ORIGMARK;
5508 TAINT_PROPER("syscall");
5509 }
5510
5511 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5512 * or where sizeof(long) != sizeof(char*). But such machines will
5513 * not likely have syscall implemented either, so who cares?
5514 */
5515 while (++MARK <= SP) {
5516 if (SvNIOK(*MARK) || !i)
5517 a[i++] = SvIV(*MARK);
3280af22 5518 else if (*MARK == &PL_sv_undef)
748a9306 5519 a[i++] = 0;
301e8125 5520 else
2d8e6c8d 5521 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5522 if (i > 15)
5523 break;
5524 }
5525 switch (items) {
5526 default:
cea2e8a9 5527 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5528 case 0:
cea2e8a9 5529 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5530 case 1:
5531 retval = syscall(a[0]);
5532 break;
5533 case 2:
5534 retval = syscall(a[0],a[1]);
5535 break;
5536 case 3:
5537 retval = syscall(a[0],a[1],a[2]);
5538 break;
5539 case 4:
5540 retval = syscall(a[0],a[1],a[2],a[3]);
5541 break;
5542 case 5:
5543 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5544 break;
5545 case 6:
5546 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5547 break;
5548 case 7:
5549 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5550 break;
5551 case 8:
5552 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5553 break;
5554#ifdef atarist
5555 case 9:
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5557 break;
5558 case 10:
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5560 break;
5561 case 11:
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5563 a[10]);
5564 break;
5565 case 12:
5566 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5567 a[10],a[11]);
5568 break;
5569 case 13:
5570 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5571 a[10],a[11],a[12]);
5572 break;
5573 case 14:
5574 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5575 a[10],a[11],a[12],a[13]);
5576 break;
5577#endif /* atarist */
5578 }
5579 SP = ORIGMARK;
5580 PUSHi(retval);
5581 RETURN;
5582#else
cea2e8a9 5583 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5584#endif
5585}
5586
ff68c719 5587#ifdef FCNTL_EMULATE_FLOCK
301e8125 5588
ff68c719 5589/* XXX Emulate flock() with fcntl().
5590 What's really needed is a good file locking module.
5591*/
5592
cea2e8a9
GS		 5593static int
5594fcntl_emulate_flock(int fd, int operation)
ff68c719 5595{
5596 struct flock flock;
301e8125 5597
ff68c719 5598 switch (operation & ~LOCK_NB) {
5599 case LOCK_SH:
5600 flock.l_type = F_RDLCK;
5601 break;
5602 case LOCK_EX:
5603 flock.l_type = F_WRLCK;
5604 break;
5605 case LOCK_UN:
5606 flock.l_type = F_UNLCK;
5607 break;
5608 default:
5609 errno = EINVAL;
5610 return -1;
5611 }
5612 flock.l_whence = SEEK_SET;
d9b3e12d 5613 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5614
ff68c719 5615 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5616}
5617
5618#endif /* FCNTL_EMULATE_FLOCK */
5619
5620#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5621
5622/* XXX Emulate flock() with lockf(). This is just to increase
5623 portability of scripts. The calls are not completely
5624 interchangeable. What's really needed is a good file
5625 locking module.
5626*/
5627
76c32331 5628/* The lockf() constants might have been defined in <unistd.h>.
5629 Unfortunately, <unistd.h> causes troubles on some mixed
5630 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5631
5632 Further, the lockf() constants aren't POSIX, so they might not be
5633 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5634 just stick in the SVID values and be done with it. Sigh.
5635*/
5636
5637# ifndef F_ULOCK
5638# define F_ULOCK 0 /* Unlock a previously locked region */
5639# endif
5640# ifndef F_LOCK
5641# define F_LOCK 1 /* Lock a region for exclusive use */
5642# endif
5643# ifndef F_TLOCK
5644# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5645# endif
5646# ifndef F_TEST
5647# define F_TEST 3 /* Test a region for other processes locks */
5648# endif
5649
cea2e8a9
GS		 5650static int
5651lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5652{
5653 int i;
84902520
TB		 5654 int save_errno;
5655 Off_t pos;
5656
5657 /* flock locks entire file so for lockf we need to do the same */
5658 save_errno = errno;
6ad3d225 5659 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5660 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5661 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5662 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5663 errno = save_errno;
5664
16d20bd9
AD		 5665 switch (operation) {
5666
5667 /* LOCK_SH - get a shared lock */
5668 case LOCK_SH:
5669 /* LOCK_EX - get an exclusive lock */
5670 case LOCK_EX:
5671 i = lockf (fd, F_LOCK, 0);
5672 break;
5673
5674 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5675 case LOCK_SH|LOCK_NB:
5676 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5677 case LOCK_EX|LOCK_NB:
5678 i = lockf (fd, F_TLOCK, 0);
5679 if (i == -1)
5680 if ((errno == EAGAIN) || (errno == EACCES))
5681 errno = EWOULDBLOCK;
5682 break;
5683
ff68c719 5684 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5685 case LOCK_UN:
ff68c719 5686 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5687 i = lockf (fd, F_ULOCK, 0);
5688 break;
5689
5690 /* Default - can't decipher operation */
5691 default:
5692 i = -1;
5693 errno = EINVAL;
5694 break;
5695 }
84902520
TB		 5696
5697 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5698 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5699
16d20bd9
AD		 5700 return (i);
5701}
ff68c719 5702
5703#endif /* LOCKF_EMULATE_FLOCK */
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