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[perl5.git] / pp_sys.c
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a0d0e21e
LW		 1/* pp_sys.c
2 *
e6906430
JH		 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
18#include "EXTERN.h"
864dbfa3 19#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 20#include "perl.h"
21
f1066039
JH		 22#ifdef I_SHADOW
23/* Shadow password support for solaris - pdo@cs.umd.edu
24 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 25 * The API is from SysV.
26 *
27 * There are at least two more shadow interfaces,
28 * see the comments in pp_gpwent().
29 *
30 * --jhi */
31# ifdef __hpux__
c529f79d 32/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 33 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 34# undef MAXINT
35# endif
36# include <shadow.h>
8c0bfa08
PB		 37#endif
38
301e8125
NIS		 39#ifdef HAS_SYSCALL
40#ifdef __cplusplus
8ac85365
NIS		 41extern "C" int syscall(unsigned long,...);
42#endif
43#endif
44
76c32331 45#ifdef I_SYS_WAIT
46# include <sys/wait.h>
47#endif
48
49#ifdef I_SYS_RESOURCE
50# include <sys/resource.h>
16d20bd9 51#endif
a0d0e21e 52
2986a63f
JH		 53#ifdef NETWARE
54NETDB_DEFINE_CONTEXT
55#endif
56
a0d0e21e 57#ifdef HAS_SELECT
1e743fda
JH		 58# ifdef I_SYS_SELECT
59# include <sys/select.h>
60# endif
a0d0e21e 61#endif
a0d0e21e 62
dc45a647
MB		 63/* XXX Configure test needed.
64 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 65 applications, see "extern int errno in perl.h". Creating such
66 a test requires taking into account the differences between
67 compiling multithreaded and singlethreaded ($ccflags et al).
68 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 69*/
cb50131a 70#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 71extern int h_errno;
72#endif
73
74#ifdef HAS_PASSWD
75# ifdef I_PWD
76# include <pwd.h>
77# else
fd8cd3a3 78# if !defined(VMS)
20ce7b12
GS		 79 struct passwd *getpwnam (char *);
80 struct passwd *getpwuid (Uid_t);
fd8cd3a3 81# endif
a0d0e21e 82# endif
28e8609d 83# ifdef HAS_GETPWENT
10bc17b6 84#ifndef getpwent
20ce7b12 85 struct passwd *getpwent (void);
c2a8f790
JH		 86#elif defined (VMS) && defined (my_getpwent)
87 struct passwd *Perl_my_getpwent (void);
10bc17b6 88#endif
28e8609d 89# endif
a0d0e21e
LW		 90#endif
91
92#ifdef HAS_GROUP
93# ifdef I_GRP
94# include <grp.h>
95# else
20ce7b12
GS		 96 struct group *getgrnam (char *);
97 struct group *getgrgid (Gid_t);
a0d0e21e 98# endif
28e8609d 99# ifdef HAS_GETGRENT
10bc17b6 100#ifndef getgrent
20ce7b12 101 struct group *getgrent (void);
10bc17b6 102#endif
28e8609d 103# endif
a0d0e21e
LW		 104#endif
105
106#ifdef I_UTIME
3730b96e 107# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 108# include <sys/utime.h>
109# else
110# include <utime.h>
111# endif
a0d0e21e 112#endif
a0d0e21e 113
cbdc8872 114#ifdef HAS_CHSIZE
cd52b7b2 115# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
116# undef my_chsize
117# endif
6ad3d225 118# define my_chsize PerlLIO_chsize
cbdc8872 119#endif
120
ff68c719 121#ifdef HAS_FLOCK
122# define FLOCK flock
123#else /* no flock() */
124
36477c24 125 /* fcntl.h might not have been included, even if it exists, because
126 the current Configure only sets I_FCNTL if it's needed to pick up
127 the *_OK constants. Make sure it has been included before testing
128 the fcntl() locking constants. */
129# if defined(HAS_FCNTL) && !defined(I_FCNTL)
130# include <fcntl.h>
131# endif
132
9d9004a9 133# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 134# define FLOCK fcntl_emulate_flock
135# define FCNTL_EMULATE_FLOCK
136# else /* no flock() or fcntl(F_SETLK,...) */
137# ifdef HAS_LOCKF
138# define FLOCK lockf_emulate_flock
139# define LOCKF_EMULATE_FLOCK
140# endif /* lockf */
141# endif /* no flock() or fcntl(F_SETLK,...) */
142
143# ifdef FLOCK
20ce7b12 144 static int FLOCK (int, int);
ff68c719 145
146 /*
147 * These are the flock() constants. Since this sytems doesn't have
148 * flock(), the values of the constants are probably not available.
149 */
150# ifndef LOCK_SH
151# define LOCK_SH 1
152# endif
153# ifndef LOCK_EX
154# define LOCK_EX 2
155# endif
156# ifndef LOCK_NB
157# define LOCK_NB 4
158# endif
159# ifndef LOCK_UN
160# define LOCK_UN 8
161# endif
162# endif /* emulating flock() */
163
164#endif /* no flock() */
55497cff 165
85ab1d1d
JH		 166#define ZBTLEN 10
167static char zero_but_true[ZBTLEN + 1] = "0 but true";
168
5ff3f7a4
GS		 169#if defined(I_SYS_ACCESS) && !defined(R_OK)
170# include <sys/access.h>
171#endif
172
c529f79d
CB		 173#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
174# define FD_CLOEXEC 1 /* NeXT needs this */
175#endif
176
a4af207c
JH		 177#include "reentr.h"
178
5ff3f7a4
GS		 179#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
180#undef PERL_EFF_ACCESS_W_OK
181#undef PERL_EFF_ACCESS_X_OK
182
183/* F_OK unused: if stat() cannot find it... */
184
185#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 186 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 187# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
188# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
189# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
190#endif
191
192#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 193# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 194# include <sys/security.h>
195# endif
c955f117
JH		 196# ifdef ACC_SELF
197 /* HP SecureWare */
198# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
199# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
200# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
201# else
202 /* SCO */
203# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
204# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
205# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
206# endif
5ff3f7a4
GS		 207#endif
208
209#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 210 /* AIX */
5ff3f7a4
GS		 211# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
212# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
213# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
214#endif
215
327c3667
GS		 216#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
217 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
218 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 219/* The Hard Way. */
327c3667 220STATIC int
7f4774ae 221S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 222{
5ff3f7a4
GS		 223 Uid_t ruid = getuid();
224 Uid_t euid = geteuid();
225 Gid_t rgid = getgid();
226 Gid_t egid = getegid();
227 int res;
228
146174a9 229 LOCK_CRED_MUTEX;
5ff3f7a4 230#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 231 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 232#else
233#ifdef HAS_SETREUID
234 if (setreuid(euid, ruid))
235#else
236#ifdef HAS_SETRESUID
237 if (setresuid(euid, ruid, (Uid_t)-1))
238#endif
239#endif
cea2e8a9 240 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 241#endif
242
243#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 244 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 245#else
246#ifdef HAS_SETREGID
247 if (setregid(egid, rgid))
248#else
249#ifdef HAS_SETRESGID
250 if (setresgid(egid, rgid, (Gid_t)-1))
251#endif
252#endif
cea2e8a9 253 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 254#endif
255
256 res = access(path, mode);
257
258#ifdef HAS_SETREUID
259 if (setreuid(ruid, euid))
260#else
261#ifdef HAS_SETRESUID
262 if (setresuid(ruid, euid, (Uid_t)-1))
263#endif
264#endif
cea2e8a9 265 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 266
267#ifdef HAS_SETREGID
268 if (setregid(rgid, egid))
269#else
270#ifdef HAS_SETRESGID
271 if (setresgid(rgid, egid, (Gid_t)-1))
272#endif
273#endif
cea2e8a9 274 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 275 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 276
277 return res;
278}
279# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
280# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
281# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
282#endif
283
284#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 285/* With it or without it: anyway you get a warning: either that
286 it is unused, or it is declared static and never defined.
287 */
327c3667 288STATIC int
7f4774ae 289S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 290{
cea2e8a9 291 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 292 /*NOTREACHED*/
293 return -1;
294}
295#endif
296
a0d0e21e
LW		 297PP(pp_backtick)
298{
39644a26 299 dSP; dTARGET;
760ac839 300 PerlIO *fp;
2d8e6c8d
GS		 301 STRLEN n_a;
302 char *tmps = POPpx;
54310121 303 I32 gimme = GIMME_V;
16fe6d59 304 char *mode = "r";
54310121 305
a0d0e21e 306 TAINT_PROPER("``");
16fe6d59
GS		 307 if (PL_op->op_private & OPpOPEN_IN_RAW)
308 mode = "rb";
309 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
310 mode = "rt";
311 fp = PerlProc_popen(tmps, mode);
a0d0e21e 312 if (fp) {
ac27b0f5
NIS		 313 char *type = NULL;
314 if (PL_curcop->cop_io) {
315 type = SvPV_nolen(PL_curcop->cop_io);
316 }
ac27b0f5
NIS		 317 if (type && *type)
318 PerlIO_apply_layers(aTHX_ fp,mode,type);
319
54310121 320 if (gimme == G_VOID) {
96827780
MB		 321 char tmpbuf[256];
322 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 323 /*SUPPRESS 530*/
324 ;
325 }
326 else if (gimme == G_SCALAR) {
fa326138
RG		 327 SV *oldrs = PL_rs;
328 PL_rs = &PL_sv_undef;
aa689395 329 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 330 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
331 /*SUPPRESS 530*/
332 ;
fa326138 333 PL_rs = oldrs;
a0d0e21e 334 XPUSHs(TARG);
aa689395 335 SvTAINTED_on(TARG);
a0d0e21e
LW		 336 }
337 else {
338 SV *sv;
339
340 for (;;) {
8d6dde3e 341 sv = NEWSV(56, 79);
a0d0e21e
LW		 342 if (sv_gets(sv, fp, 0) == Nullch) {
343 SvREFCNT_dec(sv);
344 break;
345 }
346 XPUSHs(sv_2mortal(sv));
347 if (SvLEN(sv) - SvCUR(sv) > 20) {
348 SvLEN_set(sv, SvCUR(sv)+1);
349 Renew(SvPVX(sv), SvLEN(sv), char);
350 }
aa689395 351 SvTAINTED_on(sv);
a0d0e21e
LW		 352 }
353 }
6ad3d225 354 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 355 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 356 }
357 else {
f86702cc 358 STATUS_NATIVE_SET(-1);
54310121 359 if (gimme == G_SCALAR)
a0d0e21e
LW		 360 RETPUSHUNDEF;
361 }
362
363 RETURN;
364}
365
366PP(pp_glob)
367{
368 OP *result;
f5284f61
IZ		 369 tryAMAGICunTARGET(iter, -1);
370
71686f12
GS		 371 /* Note that we only ever get here if File::Glob fails to load
372 * without at the same time croaking, for some reason, or if
373 * perl was built with PERL_EXTERNAL_GLOB */
374
a0d0e21e 375 ENTER;
a0d0e21e 376
c90c0ff4 377#ifndef VMS
3280af22 378 if (PL_tainting) {
7bac28a0 379 /*
380 * The external globbing program may use things we can't control,
381 * so for security reasons we must assume the worst.
382 */
383 TAINT;
22c35a8c 384 taint_proper(PL_no_security, "glob");
7bac28a0 385 }
c90c0ff4 386#endif /* !VMS */
7bac28a0 387
3280af22
NIS		 388 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
389 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 390
3280af22 391 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 392 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 393#ifndef DOSISH
394#ifndef CSH
6b88bc9c 395 *SvPVX(PL_rs) = '\n';
a0d0e21e 396#endif /* !CSH */
55497cff 397#endif /* !DOSISH */
c07a80fd 398
a0d0e21e
LW		 399 result = do_readline();
400 LEAVE;
401 return result;
402}
403
a0d0e21e
LW		 404PP(pp_rcatline)
405{
146174a9 406 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 407 return do_readline();
408}
409
410PP(pp_warn)
411{
39644a26 412 dSP; dMARK;
06bf62c7 413 SV *tmpsv;
a0d0e21e 414 char *tmps;
06bf62c7 415 STRLEN len;
a0d0e21e
LW		 416 if (SP - MARK != 1) {
417 dTARGET;
3280af22 418 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 419 tmpsv = TARG;
a0d0e21e
LW		 420 SP = MARK + 1;
421 }
422 else {
06bf62c7 423 tmpsv = TOPs;
a0d0e21e 424 }
06bf62c7
GS		 425 tmps = SvPV(tmpsv, len);
426 if (!tmps || !len) {
4e6ea2c3
GS		 427 SV *error = ERRSV;
428 (void)SvUPGRADE(error, SVt_PV);
429 if (SvPOK(error) && SvCUR(error))
430 sv_catpv(error, "\t...caught");
06bf62c7
GS		 431 tmpsv = error;
432 tmps = SvPV(tmpsv, len);
a0d0e21e 433 }
06bf62c7
GS		 434 if (!tmps || !len)
435 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
436
cb50131a 437 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 438 RETSETYES;
439}
440
441PP(pp_die)
442{
39644a26 443 dSP; dMARK;
a0d0e21e 444 char *tmps;
06bf62c7
GS		 445 SV *tmpsv;
446 STRLEN len;
447 bool multiarg = 0;
96e176bf
CL		 448#ifdef VMS
449 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
450#endif
a0d0e21e
LW		 451 if (SP - MARK != 1) {
452 dTARGET;
3280af22 453 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 454 tmpsv = TARG;
455 tmps = SvPV(tmpsv, len);
456 multiarg = 1;
a0d0e21e
LW		 457 SP = MARK + 1;
458 }
459 else {
4e6ea2c3 460 tmpsv = TOPs;
5b7ea690 461 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 462 }
06bf62c7 463 if (!tmps || !len) {
4e6ea2c3
GS		 464 SV *error = ERRSV;
465 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 466 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
467 if (!multiarg)
4e6ea2c3 468 SvSetSV(error,tmpsv);
06bf62c7 469 else if (sv_isobject(error)) {
05423cc9
GS		 470 HV *stash = SvSTASH(SvRV(error));
471 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
472 if (gv) {
146174a9 473 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 474 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 475 EXTEND(SP, 3);
476 PUSHMARK(SP);
477 PUSHs(error);
478 PUSHs(file);
479 PUSHs(line);
480 PUTBACK;
864dbfa3
GS		 481 call_sv((SV*)GvCV(gv),
482 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 483 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 484 }
485 }
b3fe4827 486 DIE(aTHX_ Nullformat);
4e6ea2c3
GS		 487 }
488 else {
489 if (SvPOK(error) && SvCUR(error))
490 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 491 tmpsv = error;
492 tmps = SvPV(tmpsv, len);
4e6ea2c3 493 }
a0d0e21e 494 }
06bf62c7
GS		 495 if (!tmps || !len)
496 tmpsv = sv_2mortal(newSVpvn("Died", 4));
497
cb50131a 498 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 499}
500
501/* I/O. */
502
503PP(pp_open)
504{
39644a26 505 dSP;
a567e93b
NIS		 506 dMARK; dORIGMARK;
507 dTARGET;
a0d0e21e
LW		 508 GV *gv;
509 SV *sv;
5b468f54 510 IO *io;
a0d0e21e
LW		 511 char *tmps;
512 STRLEN len;
4592e6ca 513 MAGIC *mg;
a567e93b 514 bool ok;
a0d0e21e 515
a567e93b 516 gv = (GV *)*++MARK;
5f05dabc 517 if (!isGV(gv))
cea2e8a9 518 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 519 if ((io = GvIOp(gv)))
36477c24 520 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 521
5b468f54 522 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 523 /* Method's args are same as ours ... */
524 /* ... except handle is replaced by the object */
5b468f54 525 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 526 PUSHMARK(MARK);
4592e6ca
NIS		 527 PUTBACK;
528 ENTER;
864dbfa3 529 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 530 LEAVE;
531 SPAGAIN;
532 RETURN;
533 }
534
a567e93b
NIS		 535 if (MARK < SP) {
536 sv = *++MARK;
537 }
538 else {
539 sv = GvSV(gv);
540 }
541
a0d0e21e 542 tmps = SvPV(sv, len);
a567e93b
NIS		 543 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
544 SP = ORIGMARK;
545 if (ok)
3280af22
NIS		 546 PUSHi( (I32)PL_forkprocess );
547 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 548 PUSHi(0);
549 else
550 RETPUSHUNDEF;
551 RETURN;
552}
553
554PP(pp_close)
555{
39644a26 556 dSP;
a0d0e21e 557 GV *gv;
5b468f54 558 IO *io;
1d603a67 559 MAGIC *mg;
a0d0e21e
LW		 560
561 if (MAXARG == 0)
3280af22 562 gv = PL_defoutgv;
a0d0e21e
LW		 563 else
564 gv = (GV*)POPs;
1d603a67 565
5b468f54
AMS		 566 if (gv && (io = GvIO(gv))
567 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
568 {
1d603a67 569 PUSHMARK(SP);
5b468f54 570 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 571 PUTBACK;
572 ENTER;
864dbfa3 573 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 574 LEAVE;
575 SPAGAIN;
576 RETURN;
577 }
a0d0e21e 578 EXTEND(SP, 1);
54310121 579 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 580 RETURN;
581}
582
583PP(pp_pipe_op)
584{
a0d0e21e 585#ifdef HAS_PIPE
9cad6237 586 dSP;
a0d0e21e
LW		 587 GV *rgv;
588 GV *wgv;
589 register IO *rstio;
590 register IO *wstio;
591 int fd[2];
592
593 wgv = (GV*)POPs;
594 rgv = (GV*)POPs;
595
596 if (!rgv || !wgv)
597 goto badexit;
598
4633a7c4 599 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 600 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 601 rstio = GvIOn(rgv);
602 wstio = GvIOn(wgv);
603
604 if (IoIFP(rstio))
605 do_close(rgv, FALSE);
606 if (IoIFP(wstio))
607 do_close(wgv, FALSE);
608
6ad3d225 609 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 610 goto badexit;
611
43af864e
JH		 612 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
613 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
b5ac89c3 614 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 615 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 616 IoTYPE(rstio) = IoTYPE_RDONLY;
617 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 618
619 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 620 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 621 else PerlLIO_close(fd[0]);
760ac839 622 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 623 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 624 goto badexit;
625 }
4771b018
GS		 626#if defined(HAS_FCNTL) && defined(F_SETFD)
627 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
628 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
629#endif
a0d0e21e
LW		 630 RETPUSHYES;
631
632badexit:
633 RETPUSHUNDEF;
634#else
cea2e8a9 635 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 636#endif
637}
638
639PP(pp_fileno)
640{
39644a26 641 dSP; dTARGET;
a0d0e21e
LW		 642 GV *gv;
643 IO *io;
760ac839 644 PerlIO *fp;
4592e6ca
NIS		 645 MAGIC *mg;
646
a0d0e21e
LW		 647 if (MAXARG < 1)
648 RETPUSHUNDEF;
649 gv = (GV*)POPs;
4592e6ca 650
5b468f54
AMS		 651 if (gv && (io = GvIO(gv))
652 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
653 {
4592e6ca 654 PUSHMARK(SP);
5b468f54 655 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 656 PUTBACK;
657 ENTER;
864dbfa3 658 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 659 LEAVE;
660 SPAGAIN;
661 RETURN;
662 }
663
c289d2f7
JH		 664 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
665 /* Can't do this because people seem to do things like
666 defined(fileno($foo)) to check whether $foo is a valid fh.
667 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
668 report_evil_fh(gv, io, PL_op->op_type);
669 */
a0d0e21e 670 RETPUSHUNDEF;
c289d2f7
JH		 671 }
672
760ac839 673 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 674 RETURN;
675}
676
677PP(pp_umask)
678{
39644a26 679 dSP; dTARGET;
d7e492a4 680#ifdef HAS_UMASK
761237fe 681 Mode_t anum;
a0d0e21e 682
a0d0e21e 683 if (MAXARG < 1) {
6ad3d225
GS		 684 anum = PerlLIO_umask(0);
685 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 686 }
687 else
6ad3d225 688 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 689 TAINT_PROPER("umask");
690 XPUSHi(anum);
691#else
eec2d3df
GS		 692 /* Only DIE if trying to restrict permissions on `user' (self).
693 * Otherwise it's harmless and more useful to just return undef
694 * since 'group' and 'other' concepts probably don't exist here. */
695 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 696 DIE(aTHX_ "umask not implemented");
6b88bc9c 697 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 698#endif
699 RETURN;
700}
701
702PP(pp_binmode)
703{
39644a26 704 dSP;
a0d0e21e
LW		 705 GV *gv;
706 IO *io;
760ac839 707 PerlIO *fp;
4592e6ca 708 MAGIC *mg;
16fe6d59 709 SV *discp = Nullsv;
a0d0e21e
LW		 710
711 if (MAXARG < 1)
712 RETPUSHUNDEF;
60382766 713 if (MAXARG > 1) {
16fe6d59 714 discp = POPs;
60382766 715 }
a0d0e21e 716
301e8125 717 gv = (GV*)POPs;
4592e6ca 718
5b468f54
AMS		 719 if (gv && (io = GvIO(gv))
720 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
721 {
4592e6ca 722 PUSHMARK(SP);
5b468f54 723 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 724 if (discp)
725 XPUSHs(discp);
4592e6ca
NIS		 726 PUTBACK;
727 ENTER;
864dbfa3 728 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 729 LEAVE;
730 SPAGAIN;
731 RETURN;
732 }
a0d0e21e
LW		 733
734 EXTEND(SP, 1);
50f846a7 735 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 736 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
737 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 738 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 739 RETPUSHUNDEF;
740 }
a0d0e21e 741
40d98b49 742 PUTBACK;
60382766 743 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49
JH		 744 (discp) ? SvPV_nolen(discp) : Nullch)) {
745 SPAGAIN;
a0d0e21e 746 RETPUSHYES;
40d98b49
JH		 747 }
748 else {
749 SPAGAIN;
a0d0e21e 750 RETPUSHUNDEF;
40d98b49 751 }
a0d0e21e
LW		 752}
753
754PP(pp_tie)
755{
39644a26 756 dSP;
e336de0d 757 dMARK;
a0d0e21e
LW		 758 SV *varsv;
759 HV* stash;
760 GV *gv;
a0d0e21e 761 SV *sv;
3280af22 762 I32 markoff = MARK - PL_stack_base;
a0d0e21e 763 char *methname;
14befaf4 764 int how = PERL_MAGIC_tied;
e336de0d 765 U32 items;
a0d0e21e 766
e336de0d 767 varsv = *++MARK;
6b05c17a
NIS		 768 switch(SvTYPE(varsv)) {
769 case SVt_PVHV:
770 methname = "TIEHASH";
03c6e78a 771 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 772 break;
773 case SVt_PVAV:
774 methname = "TIEARRAY";
775 break;
776 case SVt_PVGV:
7fb37951
AMS		 777#ifdef GV_UNIQUE_CHECK
778 if (GvUNIQUE((GV*)varsv)) {
779 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 780 }
781#endif
6b05c17a 782 methname = "TIEHANDLE";
14befaf4 783 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 784 /* For tied filehandles, we apply tiedscalar magic to the IO
785 slot of the GP rather than the GV itself. AMS 20010812 */
786 if (!GvIOp(varsv))
787 GvIOp(varsv) = newIO();
788 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 789 break;
790 default:
791 methname = "TIESCALAR";
14befaf4 792 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 793 break;
794 }
e336de0d
GS		 795 items = SP - MARK++;
796 if (sv_isobject(*MARK)) {
6b05c17a 797 ENTER;
e788e7d3 798 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 799 PUSHMARK(SP);
eb160463 800 EXTEND(SP,(I32)items);
e336de0d
GS		 801 while (items--)
802 PUSHs(*MARK++);
803 PUTBACK;
864dbfa3 804 call_method(methname, G_SCALAR);
301e8125 805 }
6b05c17a 806 else {
864dbfa3 807 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 808 * perhaps to get different error message ?
809 */
e336de0d 810 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 811 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
c293eb2b
NC		 812 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
813 methname, *MARK);
6b05c17a
NIS		 814 }
815 ENTER;
e788e7d3 816 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 817 PUSHMARK(SP);
eb160463 818 EXTEND(SP,(I32)items);
e336de0d
GS		 819 while (items--)
820 PUSHs(*MARK++);
821 PUTBACK;
864dbfa3 822 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 823 }
a0d0e21e
LW		 824 SPAGAIN;
825
826 sv = TOPs;
d3acc0f7 827 POPSTACK;
a0d0e21e 828 if (sv_isobject(sv)) {
33c27489 829 sv_unmagic(varsv, how);
ae21d580 830 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 831 if (varsv == SvRV(sv) &&
d87ebaca
YST		 832 (SvTYPE(varsv) == SVt_PVAV ||
833 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 834 Perl_croak(aTHX_
835 "Self-ties of arrays and hashes are not supported");
d87ebaca 836 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 837 }
838 LEAVE;
3280af22 839 SP = PL_stack_base + markoff;
a0d0e21e
LW		 840 PUSHs(sv);
841 RETURN;
842}
843
844PP(pp_untie)
845{
39644a26 846 dSP;
5b468f54 847 MAGIC *mg;
33c27489 848 SV *sv = POPs;
14befaf4
DM		 849 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
850 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 851
5b468f54
AMS		 852 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
853 RETPUSHYES;
854
855 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 856 SV *obj = SvRV(mg->mg_obj);
857 GV *gv;
858 CV *cv = NULL;
fa2b88e0
JS		 859 if (obj) {
860 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
861 isGV(gv) && (cv = GvCV(gv))) {
862 PUSHMARK(SP);
863 XPUSHs(SvTIED_obj((SV*)gv, mg));
864 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
865 PUTBACK;
866 ENTER;
867 call_sv((SV *)cv, G_VOID);
868 LEAVE;
869 SPAGAIN;
870 }
871 else if (ckWARN(WARN_UNTIE)) {
872 if (mg && SvREFCNT(obj) > 1)
9014280d 873 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 874 "untie attempted while %"UVuf" inner references still exist",
875 (UV)SvREFCNT(obj) - 1 ) ;
876 }
cbdc8872 877 }
fa2b88e0 878 sv_unmagic(sv, how) ;
cbdc8872 879 }
55497cff 880 RETPUSHYES;
a0d0e21e
LW		 881}
882
c07a80fd 883PP(pp_tied)
884{
39644a26 885 dSP;
5b468f54 886 MAGIC *mg;
33c27489 887 SV *sv = POPs;
14befaf4
DM		 888 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 890
891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
892 RETPUSHUNDEF;
c07a80fd 893
155aba94 894 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 895 SV *osv = SvTIED_obj(sv, mg);
896 if (osv == mg->mg_obj)
897 osv = sv_mortalcopy(osv);
898 PUSHs(osv);
899 RETURN;
c07a80fd 900 }
c07a80fd 901 RETPUSHUNDEF;
902}
903
a0d0e21e
LW		 904PP(pp_dbmopen)
905{
39644a26 906 dSP;
a0d0e21e
LW		 907 HV *hv;
908 dPOPPOPssrl;
909 HV* stash;
910 GV *gv;
a0d0e21e
LW		 911 SV *sv;
912
913 hv = (HV*)POPs;
914
3280af22 915 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 916 sv_setpv(sv, "AnyDBM_File");
917 stash = gv_stashsv(sv, FALSE);
8ebc5c01 918 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 919 PUTBACK;
864dbfa3 920 require_pv("AnyDBM_File.pm");
a0d0e21e 921 SPAGAIN;
8ebc5c01 922 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 923 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 924 }
925
57d3b86d 926 ENTER;
924508f0 927 PUSHMARK(SP);
6b05c17a 928
924508f0 929 EXTEND(SP, 5);
a0d0e21e
LW		 930 PUSHs(sv);
931 PUSHs(left);
932 if (SvIV(right))
b448e4fe 933 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 934 else
b448e4fe 935 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 936 PUSHs(right);
57d3b86d 937 PUTBACK;
864dbfa3 938 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 939 SPAGAIN;
940
941 if (!sv_isobject(TOPs)) {
924508f0
GS		 942 SP--;
943 PUSHMARK(SP);
a0d0e21e
LW		 944 PUSHs(sv);
945 PUSHs(left);
b448e4fe 946 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 947 PUSHs(right);
a0d0e21e 948 PUTBACK;
864dbfa3 949 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 950 SPAGAIN;
951 }
952
6b05c17a 953 if (sv_isobject(TOPs)) {
14befaf4
DM		 954 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
955 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 956 }
a0d0e21e
LW		 957 LEAVE;
958 RETURN;
959}
960
961PP(pp_dbmclose)
962{
cea2e8a9 963 return pp_untie();
a0d0e21e
LW		 964}
965
966PP(pp_sselect)
967{
a0d0e21e 968#ifdef HAS_SELECT
9cad6237 969 dSP; dTARGET;
a0d0e21e
LW		 970 register I32 i;
971 register I32 j;
972 register char *s;
973 register SV *sv;
65202027 974 NV value;
a0d0e21e
LW		 975 I32 maxlen = 0;
976 I32 nfound;
977 struct timeval timebuf;
978 struct timeval *tbuf = &timebuf;
979 I32 growsize;
980 char *fd_sets[4];
2d8e6c8d 981 STRLEN n_a;
a0d0e21e
LW		 982#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
983 I32 masksize;
984 I32 offset;
985 I32 k;
986
987# if BYTEORDER & 0xf0000
988# define ORDERBYTE (0x88888888 - BYTEORDER)
989# else
990# define ORDERBYTE (0x4444 - BYTEORDER)
991# endif
992
993#endif
994
995 SP -= 4;
996 for (i = 1; i <= 3; i++) {
997 if (!SvPOK(SP[i]))
998 continue;
999 j = SvCUR(SP[i]);
1000 if (maxlen < j)
1001 maxlen = j;
1002 }
1003
5ff3f7a4 1004/* little endians can use vecs directly */
e366b469 1005#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1006# ifdef NFDBITS
a0d0e21e 1007
5ff3f7a4
GS		 1008# ifndef NBBY
1009# define NBBY 8
1010# endif
a0d0e21e
LW		 1011
1012 masksize = NFDBITS / NBBY;
5ff3f7a4 1013# else
a0d0e21e 1014 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1015# endif
a0d0e21e
LW		 1016 Zero(&fd_sets[0], 4, char*);
1017#endif
1018
e366b469
PG		 1019# if SELECT_MIN_BITS > 1
1020 /* If SELECT_MIN_BITS is greater than one we most probably will want
1021 * to align the sizes with SELECT_MIN_BITS/8 because for example
1022 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1023 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1024 * on (sets/tests/clears bits) is 32 bits. */
1025 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1026# else
1027 growsize = sizeof(fd_set);
1028# endif
1029
a0d0e21e
LW		 1030 sv = SP[4];
1031 if (SvOK(sv)) {
1032 value = SvNV(sv);
1033 if (value < 0.0)
1034 value = 0.0;
1035 timebuf.tv_sec = (long)value;
65202027 1036 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1037 timebuf.tv_usec = (long)(value * 1000000.0);
1038 }
1039 else
1040 tbuf = Null(struct timeval*);
1041
1042 for (i = 1; i <= 3; i++) {
1043 sv = SP[i];
1044 if (!SvOK(sv)) {
1045 fd_sets[i] = 0;
1046 continue;
1047 }
1048 else if (!SvPOK(sv))
2d8e6c8d 1049 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1050 j = SvLEN(sv);
1051 if (j < growsize) {
1052 Sv_Grow(sv, growsize);
a0d0e21e 1053 }
c07a80fd 1054 j = SvCUR(sv);
1055 s = SvPVX(sv) + j;
1056 while (++j <= growsize) {
1057 *s++ = '\0';
1058 }
1059
a0d0e21e
LW		 1060#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1061 s = SvPVX(sv);
1062 New(403, fd_sets[i], growsize, char);
1063 for (offset = 0; offset < growsize; offset += masksize) {
1064 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1065 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1066 }
1067#else
1068 fd_sets[i] = SvPVX(sv);
1069#endif
1070 }
1071
fd4f854d
NC		 1072#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1073 /* Can't make just the (void*) conditional because that would be
1074 * cpp #if within cpp macro, and not all compilers like that. */
1075 nfound = PerlSock_select(
1076 maxlen * 8,
1077 (Select_fd_set_t) fd_sets[1],
1078 (Select_fd_set_t) fd_sets[2],
1079 (Select_fd_set_t) fd_sets[3],
1080 (void*) tbuf); /* Workaround for compiler bug. */
1081#else
6ad3d225 1082 nfound = PerlSock_select(
a0d0e21e
LW		 1083 maxlen * 8,
1084 (Select_fd_set_t) fd_sets[1],
1085 (Select_fd_set_t) fd_sets[2],
1086 (Select_fd_set_t) fd_sets[3],
1087 tbuf);
fd4f854d 1088#endif
a0d0e21e
LW		 1089 for (i = 1; i <= 3; i++) {
1090 if (fd_sets[i]) {
1091 sv = SP[i];
1092#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1093 s = SvPVX(sv);
1094 for (offset = 0; offset < growsize; offset += masksize) {
1095 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1096 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1097 }
1098 Safefree(fd_sets[i]);
1099#endif
1100 SvSETMAGIC(sv);
1101 }
1102 }
1103
1104 PUSHi(nfound);
1105 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1106 value = (NV)(timebuf.tv_sec) +
1107 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1109 sv_setnv(sv, value);
1110 }
1111 RETURN;
1112#else
cea2e8a9 1113 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1114#endif
1115}
1116
4633a7c4 1117void
864dbfa3 1118Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1119{
1120 if (gv)
1121 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1122 if (PL_defoutgv)
1123 SvREFCNT_dec(PL_defoutgv);
1124 PL_defoutgv = gv;
4633a7c4
LW		 1125}
1126
a0d0e21e
LW		 1127PP(pp_select)
1128{
39644a26 1129 dSP; dTARGET;
4633a7c4
LW		 1130 GV *newdefout, *egv;
1131 HV *hv;
1132
533c011a 1133 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1134
3280af22 1135 egv = GvEGV(PL_defoutgv);
4633a7c4 1136 if (!egv)
3280af22 1137 egv = PL_defoutgv;
4633a7c4
LW		 1138 hv = GvSTASH(egv);
1139 if (! hv)
3280af22 1140 XPUSHs(&PL_sv_undef);
4633a7c4 1141 else {
cbdc8872 1142 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1143 if (gvp && *gvp == egv) {
f7aaccc2 1144 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1145 XPUSHTARG;
1146 }
1147 else {
1148 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1149 }
4633a7c4
LW		 1150 }
1151
1152 if (newdefout) {
ded8aa31
GS		 1153 if (!GvIO(newdefout))
1154 gv_IOadd(newdefout);
4633a7c4
LW		 1155 setdefout(newdefout);
1156 }
1157
a0d0e21e
LW		 1158 RETURN;
1159}
1160
1161PP(pp_getc)
1162{
39644a26 1163 dSP; dTARGET;
a0d0e21e 1164 GV *gv;
90133b69 1165 IO *io = NULL;
2ae324a7 1166 MAGIC *mg;
a0d0e21e 1167
32da55ab 1168 if (MAXARG == 0)
3280af22 1169 gv = PL_stdingv;
a0d0e21e
LW		 1170 else
1171 gv = (GV*)POPs;
2ae324a7 1172
5b468f54
AMS		 1173 if (gv && (io = GvIO(gv))
1174 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1175 {
54310121 1176 I32 gimme = GIMME_V;
2ae324a7 1177 PUSHMARK(SP);
5b468f54 1178 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1179 PUTBACK;
1180 ENTER;
864dbfa3 1181 call_method("GETC", gimme);
2ae324a7 1182 LEAVE;
1183 SPAGAIN;
54310121 1184 if (gimme == G_SCALAR)
1185 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1186 RETURN;
1187 }
90133b69 1188 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1189 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1190 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1191 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1192 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1193 RETPUSHUNDEF;
90133b69 1194 }
bbce6d69 1195 TAINT;
a0d0e21e 1196 sv_setpv(TARG, " ");
9bc64814 1197 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1198 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1199 /* Find out how many bytes the char needs */
1200 Size_t len = UTF8SKIP(SvPVX(TARG));
1201 if (len > 1) {
1202 SvGROW(TARG,len+1);
1203 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1204 SvCUR_set(TARG,1+len);
1205 }
1206 SvUTF8_on(TARG);
1207 }
a0d0e21e
LW		 1208 PUSHTARG;
1209 RETURN;
1210}
1211
1212PP(pp_read)
1213{
cea2e8a9 1214 return pp_sysread();
a0d0e21e
LW		 1215}
1216
76e3520e 1217STATIC OP *
cea2e8a9 1218S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1219{
c09156bb 1220 register PERL_CONTEXT *cx;
54310121 1221 I32 gimme = GIMME_V;
a0d0e21e
LW		 1222
1223 ENTER;
1224 SAVETMPS;
1225
1226 push_return(retop);
146174a9 1227 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1228 PUSHFORMAT(cx);
9755d405 1229 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1230
4633a7c4 1231 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1232 return CvSTART(cv);
1233}
1234
1235PP(pp_enterwrite)
1236{
39644a26 1237 dSP;
a0d0e21e
LW		 1238 register GV *gv;
1239 register IO *io;
1240 GV *fgv;
1241 CV *cv;
1242
1243 if (MAXARG == 0)
3280af22 1244 gv = PL_defoutgv;
a0d0e21e
LW		 1245 else {
1246 gv = (GV*)POPs;
1247 if (!gv)
3280af22 1248 gv = PL_defoutgv;
a0d0e21e
LW		 1249 }
1250 EXTEND(SP, 1);
1251 io = GvIO(gv);
1252 if (!io) {
1253 RETPUSHNO;
1254 }
1255 if (IoFMT_GV(io))
1256 fgv = IoFMT_GV(io);
1257 else
1258 fgv = gv;
1259
1260 cv = GvFORM(fgv);
a0d0e21e 1261 if (!cv) {
2dd78f96 1262 char *name = NULL;
a0d0e21e 1263 if (fgv) {
748a9306 1264 SV *tmpsv = sv_newmortal();
43693395 1265 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1266 name = SvPV_nolen(tmpsv);
a0d0e21e 1267 }
2dd78f96
JH		 1268 if (name && *name)
1269 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1270 DIE(aTHX_ "Not a format reference");
a0d0e21e 1271 }
44a8e56a 1272 if (CvCLONE(cv))
1273 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1274
44a8e56a 1275 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1276 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1277}
1278
1279PP(pp_leavewrite)
1280{
39644a26 1281 dSP;
a0d0e21e
LW		 1282 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1283 register IO *io = GvIOp(gv);
760ac839
LW		 1284 PerlIO *ofp = IoOFP(io);
1285 PerlIO *fp;
a0d0e21e
LW		 1286 SV **newsp;
1287 I32 gimme;
c09156bb 1288 register PERL_CONTEXT *cx;
a0d0e21e 1289
760ac839 1290 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1291 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1292 if (!io || !ofp)
1293 goto forget_top;
3280af22
NIS		 1294 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1295 PL_formtarget != PL_toptarget)
a0d0e21e 1296 {
4633a7c4
LW		 1297 GV *fgv;
1298 CV *cv;
a0d0e21e
LW		 1299 if (!IoTOP_GV(io)) {
1300 GV *topgv;
46fc3d4c 1301 SV *topname;
a0d0e21e
LW		 1302
1303 if (!IoTOP_NAME(io)) {
1304 if (!IoFMT_NAME(io))
1305 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1306 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1307 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1308 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1309 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1310 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1311 else
1312 IoTOP_NAME(io) = savepv("top");
1313 }
1314 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1315 if (!topgv || !GvFORM(topgv)) {
1316 IoLINES_LEFT(io) = 100000000;
1317 goto forget_top;
1318 }
1319 IoTOP_GV(io) = topgv;
1320 }
748a9306
LW		 1321 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1322 I32 lines = IoLINES_LEFT(io);
3280af22 1323 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1324 if (lines <= 0) /* Yow, header didn't even fit!!! */
1325 goto forget_top;
748a9306
LW		 1326 while (lines-- > 0) {
1327 s = strchr(s, '\n');
1328 if (!s)
1329 break;
1330 s++;
1331 }
1332 if (s) {
d75029d0
NIS		 1333 STRLEN save = SvCUR(PL_formtarget);
1334 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1335 do_print(PL_formtarget, ofp);
1336 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1337 sv_chop(PL_formtarget, s);
1338 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1339 }
1340 }
a0d0e21e 1341 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1342 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1343 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1344 IoPAGE(io)++;
3280af22 1345 PL_formtarget = PL_toptarget;
748a9306 1346 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1347 fgv = IoTOP_GV(io);
1348 if (!fgv)
cea2e8a9 1349 DIE(aTHX_ "bad top format reference");
4633a7c4 1350 cv = GvFORM(fgv);
2dd78f96
JH		 1351 {
1352 char *name = NULL;
1353 if (!cv) {
1354 SV *sv = sv_newmortal();
1355 gv_efullname4(sv, fgv, Nullch, FALSE);
1356 name = SvPV_nolen(sv);
1357 }
1358 if (name && *name)
1359 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1360 /* why no:
1361 else
1362 DIE(aTHX_ "Undefined top format called");
1363 ?*/
4633a7c4 1364 }
44a8e56a 1365 if (CvCLONE(cv))
1366 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1367 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1368 }
1369
1370 forget_top:
3280af22 1371 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1372 POPFORMAT(cx);
1373 LEAVE;
1374
1375 fp = IoOFP(io);
1376 if (!fp) {
599cee73 1377 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1378 if (IoIFP(io))
1379 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
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);
5b7ea690 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)) {
5681398e
NC		 1452 if (IoIFP(io))
1453 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1454 else if (ckWARN(WARN_CLOSED))
bc37a18f 1455 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1456 }
5b7ea690 1457 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1458 goto just_say_no;
1459 }
1460 else {
1461 do_sprintf(sv, SP - MARK, MARK + 1);
1462 if (!do_print(sv, fp))
1463 goto just_say_no;
1464
1465 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1466 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1467 goto just_say_no;
1468 }
1469 SvREFCNT_dec(sv);
1470 SP = ORIGMARK;
3280af22 1471 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1472 RETURN;
1473
1474 just_say_no:
1475 SvREFCNT_dec(sv);
1476 SP = ORIGMARK;
3280af22 1477 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1478 RETURN;
1479}
1480
c07a80fd 1481PP(pp_sysopen)
1482{
39644a26 1483 dSP;
c07a80fd 1484 GV *gv;
c07a80fd 1485 SV *sv;
1486 char *tmps;
1487 STRLEN len;
1488 int mode, perm;
1489
1490 if (MAXARG > 3)
1491 perm = POPi;
1492 else
1493 perm = 0666;
1494 mode = POPi;
1495 sv = POPs;
1496 gv = (GV *)POPs;
1497
4592e6ca
NIS		 1498 /* Need TIEHANDLE method ? */
1499
c07a80fd 1500 tmps = SvPV(sv, len);
1501 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1502 IoLINES(GvIOp(gv)) = 0;
3280af22 1503 PUSHs(&PL_sv_yes);
c07a80fd 1504 }
1505 else {
3280af22 1506 PUSHs(&PL_sv_undef);
c07a80fd 1507 }
1508 RETURN;
1509}
1510
a0d0e21e
LW		 1511PP(pp_sysread)
1512{
39644a26 1513 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1514 int offset;
1515 GV *gv;
1516 IO *io;
1517 char *buffer;
5b54f415 1518 SSize_t length;
eb5c063a 1519 SSize_t count;
1e422769 1520 Sock_size_t bufsize;
748a9306 1521 SV *bufsv;
a0d0e21e 1522 STRLEN blen;
2ae324a7 1523 MAGIC *mg;
eb5c063a
NIS		 1524 int fp_utf8;
1525 Size_t got = 0;
1526 Size_t wanted;
1d636c13 1527 bool charstart = FALSE;
87330c3c
JH		 1528 STRLEN charskip = 0;
1529 STRLEN skip = 0;
a0d0e21e
LW		 1530
1531 gv = (GV*)*++MARK;
5b468f54
AMS		 1532 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1533 && gv && (io = GvIO(gv))
1534 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1535 {
2ae324a7 1536 SV *sv;
1537
1538 PUSHMARK(MARK-1);
5b468f54 1539 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1540 ENTER;
864dbfa3 1541 call_method("READ", G_SCALAR);
2ae324a7 1542 LEAVE;
1543 SPAGAIN;
1544 sv = POPs;
1545 SP = ORIGMARK;
1546 PUSHs(sv);
1547 RETURN;
1548 }
1549
a0d0e21e
LW		 1550 if (!gv)
1551 goto say_undef;
748a9306 1552 bufsv = *++MARK;
ff68c719 1553 if (! SvOK(bufsv))
1554 sv_setpvn(bufsv, "", 0);
a0d0e21e 1555 length = SvIVx(*++MARK);
748a9306 1556 SETERRNO(0,0);
a0d0e21e
LW		 1557 if (MARK < SP)
1558 offset = SvIVx(*++MARK);
1559 else
1560 offset = 0;
1561 io = GvIO(gv);
b5fe5ca2
SR		 1562 if (!io || !IoIFP(io)) {
1563 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1564 report_evil_fh(gv, io, PL_op->op_type);
1565 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1566 goto say_undef;
b5fe5ca2 1567 }
0064a8a9 1568 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1569 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1570 /* UTF8 may not have been set if they are all low bytes */
1571 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1572 }
1573 else {
1574 buffer = SvPV_force(bufsv, blen);
1575 }
1576 if (length < 0)
1577 DIE(aTHX_ "Negative length");
eb5c063a 1578 wanted = length;
7d59b7e4 1579
d0965105
JH		 1580 charstart = TRUE;
1581 charskip = 0;
87330c3c 1582 skip = 0;
d0965105 1583
a0d0e21e 1584#ifdef HAS_SOCKET
533c011a 1585 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1586 char namebuf[MAXPATHLEN];
17a8c7ba 1587#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1588 bufsize = sizeof (struct sockaddr_in);
1589#else
46fc3d4c 1590 bufsize = sizeof namebuf;
490ab354 1591#endif
abf95952
IZ		 1592#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1593 if (bufsize >= 256)
1594 bufsize = 255;
1595#endif
eb160463 1596 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1597 /* 'offset' means 'flags' here */
eb5c063a 1598 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1599 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1600 if (count < 0)
a0d0e21e 1601 RETPUSHUNDEF;
4107cc59
OF		 1602#ifdef EPOC
1603 /* Bogus return without padding */
1604 bufsize = sizeof (struct sockaddr_in);
1605#endif
eb5c063a 1606 SvCUR_set(bufsv, count);
748a9306
LW		 1607 *SvEND(bufsv) = '\0';
1608 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1609 if (fp_utf8)
1610 SvUTF8_on(bufsv);
748a9306 1611 SvSETMAGIC(bufsv);
aac0dd9a 1612 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1613 if (!(IoFLAGS(io) & IOf_UNTAINT))
1614 SvTAINTED_on(bufsv);
a0d0e21e 1615 SP = ORIGMARK;
46fc3d4c 1616 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1617 PUSHs(TARG);
1618 RETURN;
1619 }
1620#else
911d147d 1621 if (PL_op->op_type == OP_RECV)
cea2e8a9 1622 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1623#endif
eb5c063a
NIS		 1624 if (DO_UTF8(bufsv)) {
1625 /* offset adjust in characters not bytes */
1626 blen = sv_len_utf8(bufsv);
7d59b7e4 1627 }
bbce6d69 1628 if (offset < 0) {
eb160463 1629 if (-offset > (int)blen)
cea2e8a9 1630 DIE(aTHX_ "Offset outside string");
bbce6d69 1631 offset += blen;
1632 }
eb5c063a
NIS		 1633 if (DO_UTF8(bufsv)) {
1634 /* convert offset-as-chars to offset-as-bytes */
1635 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1636 }
1637 more_bytes:
cd52b7b2 1638 bufsize = SvCUR(bufsv);
eb160463 1639 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1640 if (offset > bufsize) { /* Zero any newly allocated space */
1641 Zero(buffer+bufsize, offset-bufsize, char);
1642 }
eb5c063a
NIS		 1643 buffer = buffer + offset;
1644
533c011a 1645 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1646#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1647 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1648 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1649 buffer, length, 0);
a7092146
GS		 1650 }
1651 else
1652#endif
1653 {
eb5c063a
NIS		 1654 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1655 buffer, length);
a7092146 1656 }
a0d0e21e
LW		 1657 }
1658 else
1659#ifdef HAS_SOCKET__bad_code_maybe
50952442 1660 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1661 char namebuf[MAXPATHLEN];
490ab354
JH		 1662#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1663 bufsize = sizeof (struct sockaddr_in);
1664#else
46fc3d4c 1665 bufsize = sizeof namebuf;
490ab354 1666#endif
eb5c063a 1667 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1668 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1669 }
1670 else
1671#endif
3b02c43c 1672 {
eb5c063a
NIS		 1673 count = PerlIO_read(IoIFP(io), buffer, length);
1674 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1675 if (count == 0 && PerlIO_error(IoIFP(io)))
1676 count = -1;
3b02c43c 1677 }
eb5c063a 1678 if (count < 0) {
a00b5bd3 1679 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
5681398e 1680 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1681 goto say_undef;
af8c498a 1682 }
eb5c063a 1683 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1684 *SvEND(bufsv) = '\0';
1685 (void)SvPOK_only(bufsv);
0064a8a9 1686 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1687 /* Look at utf8 we got back and count the characters */
1688 char *bend = buffer + count;
1689 while (buffer < bend) {
d0965105
JH		 1690 if (charstart) {
1691 skip = UTF8SKIP(buffer);
1692 charskip = 0;
1693 }
1694 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1695 /* partial character - try for rest of it */
1696 length = skip - (bend-buffer);
1697 offset = bend - SvPVX(bufsv);
d0965105
JH		 1698 charstart = FALSE;
1699 charskip += count;
eb5c063a
NIS		 1700 goto more_bytes;
1701 }
1702 else {
1703 got++;
1704 buffer += skip;
d0965105
JH		 1705 charstart = TRUE;
1706 charskip = 0;
eb5c063a
NIS		 1707 }
1708 }
1709 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1710 provided amount read (count) was what was requested (length)
1711 */
1712 if (got < wanted && count == length) {
d0965105 1713 length = wanted - got;
eb5c063a
NIS		 1714 offset = bend - SvPVX(bufsv);
1715 goto more_bytes;
1716 }
1717 /* return value is character count */
1718 count = got;
1719 SvUTF8_on(bufsv);
1720 }
748a9306 1721 SvSETMAGIC(bufsv);
aac0dd9a 1722 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1723 if (!(IoFLAGS(io) & IOf_UNTAINT))
1724 SvTAINTED_on(bufsv);
a0d0e21e 1725 SP = ORIGMARK;
eb5c063a 1726 PUSHi(count);
a0d0e21e
LW		 1727 RETURN;
1728
1729 say_undef:
1730 SP = ORIGMARK;
1731 RETPUSHUNDEF;
1732}
1733
1734PP(pp_syswrite)
1735{
39644a26 1736 dSP;
092bebab
JH		 1737 int items = (SP - PL_stack_base) - TOPMARK;
1738 if (items == 2) {
9f089d78 1739 SV *sv;
092bebab 1740 EXTEND(SP, 1);
9f089d78
SB		 1741 sv = sv_2mortal(newSViv(sv_len(*SP)));
1742 PUSHs(sv);
092bebab
JH		 1743 PUTBACK;
1744 }
cea2e8a9 1745 return pp_send();
a0d0e21e
LW		 1746}
1747
1748PP(pp_send)
1749{
39644a26 1750 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1751 GV *gv;
1752 IO *io;
748a9306 1753 SV *bufsv;
a0d0e21e 1754 char *buffer;
8c99d73e
GS		 1755 Size_t length;
1756 SSize_t retval;
a0d0e21e 1757 STRLEN blen;
1d603a67 1758 MAGIC *mg;
a0d0e21e
LW		 1759
1760 gv = (GV*)*++MARK;
14befaf4 1761 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1762 && gv && (io = GvIO(gv))
1763 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1764 {
1d603a67
GB		 1765 SV *sv;
1766
1767 PUSHMARK(MARK-1);
5b468f54 1768 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1769 ENTER;
864dbfa3 1770 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1771 LEAVE;
1772 SPAGAIN;
1773 sv = POPs;
1774 SP = ORIGMARK;
1775 PUSHs(sv);
1776 RETURN;
1777 }
a0d0e21e
LW		 1778 if (!gv)
1779 goto say_undef;
748a9306 1780 bufsv = *++MARK;
8c99d73e 1781#if Size_t_size > IVSIZE
3c001241 1782 length = (Size_t)SvNVx(*++MARK);
146174a9 1783#else
3c001241 1784 length = (Size_t)SvIVx(*++MARK);
146174a9 1785#endif
3c001241 1786 if ((SSize_t)length < 0)
cea2e8a9 1787 DIE(aTHX_ "Negative length");
748a9306 1788 SETERRNO(0,0);
a0d0e21e
LW		 1789 io = GvIO(gv);
1790 if (!io || !IoIFP(io)) {
8c99d73e 1791 retval = -1;
bc37a18f
RG		 1792 if (ckWARN(WARN_CLOSED))
1793 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1794 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1795 goto say_undef;
1796 }
1797
1798 if (PerlIO_isutf8(IoIFP(io))) {
1799 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1800 }
7d59b7e4
NIS		 1801 else {
1802 if (DO_UTF8(bufsv))
1803 sv_utf8_downgrade(bufsv, FALSE);
1804 buffer = SvPV(bufsv, blen);
1805 }
1806
1807 if (PL_op->op_type == OP_SYSWRITE) {
1808 IV offset;
1809 if (DO_UTF8(bufsv)) {
1810 /* length and offset are in chars */
1811 blen = sv_len_utf8(bufsv);
1812 }
bbce6d69 1813 if (MARK < SP) {
a0d0e21e 1814 offset = SvIVx(*++MARK);
bbce6d69 1815 if (offset < 0) {
eb160463 1816 if (-offset > (IV)blen)
cea2e8a9 1817 DIE(aTHX_ "Offset outside string");
bbce6d69 1818 offset += blen;
eb160463 1819 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1820 DIE(aTHX_ "Offset outside string");
bbce6d69 1821 } else
a0d0e21e
LW		 1822 offset = 0;
1823 if (length > blen - offset)
1824 length = blen - offset;
7d59b7e4 1825 if (DO_UTF8(bufsv)) {
c8d31a35 1826 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1827 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1828 }
1829 else {
1830 buffer = buffer+offset;
1831 }
a7092146 1832#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1833 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1834 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1835 buffer, length, 0);
a7092146
GS		 1836 }
1837 else
1838#endif
1839 {
94e4c244 1840 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1841 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1842 buffer, length);
a7092146 1843 }
a0d0e21e
LW		 1844 }
1845#ifdef HAS_SOCKET
1846 else if (SP > MARK) {
1847 char *sockbuf;
1848 STRLEN mlen;
1849 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1850 /* length is really flags */
8c99d73e
GS		 1851 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1852 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1853 }
1854 else
7d59b7e4 1855 /* length is really flags */
8c99d73e 1856 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1857#else
1858 else
cea2e8a9 1859 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1860#endif
8c99d73e 1861 if (retval < 0)
a0d0e21e
LW		 1862 goto say_undef;
1863 SP = ORIGMARK;
f36eea10
JH		 1864 if (DO_UTF8(bufsv))
1865 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1866#if Size_t_size > IVSIZE
1867 PUSHn(retval);
1868#else
1869 PUSHi(retval);
1870#endif
a0d0e21e
LW		 1871 RETURN;
1872
1873 say_undef:
1874 SP = ORIGMARK;
1875 RETPUSHUNDEF;
1876}
1877
1878PP(pp_recv)
1879{
cea2e8a9 1880 return pp_sysread();
a0d0e21e
LW		 1881}
1882
1883PP(pp_eof)
1884{
39644a26 1885 dSP;
a0d0e21e 1886 GV *gv;
5b468f54 1887 IO *io;
4592e6ca 1888 MAGIC *mg;
a0d0e21e 1889
32da55ab 1890 if (MAXARG == 0) {
146174a9
CB		 1891 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1892 IO *io;
ed2c6b9b 1893 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1894 io = GvIO(gv);
1895 if (io && !IoIFP(io)) {
1896 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1897 IoLINES(io) = 0;
1898 IoFLAGS(io) &= ~IOf_START;
1899 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1900 sv_setpvn(GvSV(gv), "-", 1);
1901 SvSETMAGIC(GvSV(gv));
1902 }
1903 else if (!nextargv(gv))
1904 RETPUSHYES;
1905 }
1906 }
1907 else
1908 gv = PL_last_in_gv; /* eof */
1909 }
a0d0e21e 1910 else
146174a9 1911 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1912
5b468f54
AMS		 1913 if (gv && (io = GvIO(gv))
1914 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1915 {
4592e6ca 1916 PUSHMARK(SP);
5b468f54 1917 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1918 PUTBACK;
1919 ENTER;
864dbfa3 1920 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1921 LEAVE;
1922 SPAGAIN;
1923 RETURN;
1924 }
1925
54310121 1926 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1927 RETURN;
1928}
1929
1930PP(pp_tell)
1931{
39644a26 1932 dSP; dTARGET;
301e8125 1933 GV *gv;
5b468f54 1934 IO *io;
4592e6ca 1935 MAGIC *mg;
a0d0e21e 1936
32da55ab 1937 if (MAXARG == 0)
3280af22 1938 gv = PL_last_in_gv;
a0d0e21e 1939 else
3280af22 1940 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1941
5b468f54
AMS		 1942 if (gv && (io = GvIO(gv))
1943 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1944 {
4592e6ca 1945 PUSHMARK(SP);
5b468f54 1946 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1947 PUTBACK;
1948 ENTER;
864dbfa3 1949 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1950 LEAVE;
1951 SPAGAIN;
1952 RETURN;
1953 }
1954
146174a9
CB		 1955#if LSEEKSIZE > IVSIZE
1956 PUSHn( do_tell(gv) );
1957#else
a0d0e21e 1958 PUSHi( do_tell(gv) );
146174a9 1959#endif
a0d0e21e
LW		 1960 RETURN;
1961}
1962
1963PP(pp_seek)
1964{
cea2e8a9 1965 return pp_sysseek();
137443ea 1966}
1967
1968PP(pp_sysseek)
1969{
39644a26 1970 dSP;
a0d0e21e 1971 GV *gv;
5b468f54 1972 IO *io;
a0d0e21e 1973 int whence = POPi;
146174a9
CB		 1974#if LSEEKSIZE > IVSIZE
1975 Off_t offset = (Off_t)SvNVx(POPs);
1976#else
d9b3e12d 1977 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1978#endif
4592e6ca 1979 MAGIC *mg;
a0d0e21e 1980
3280af22 1981 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1982
5b468f54
AMS		 1983 if (gv && (io = GvIO(gv))
1984 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1985 {
4592e6ca 1986 PUSHMARK(SP);
5b468f54 1987 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 1988#if LSEEKSIZE > IVSIZE
1989 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1990#else
b448e4fe 1991 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1992#endif
b448e4fe 1993 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1994 PUTBACK;
1995 ENTER;
864dbfa3 1996 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1997 LEAVE;
1998 SPAGAIN;
1999 RETURN;
2000 }
2001
533c011a 2002 if (PL_op->op_type == OP_SEEK)
8903cb82 2003 PUSHs(boolSV(do_seek(gv, offset, whence)));
2004 else {
b448e4fe
JH		 2005 Off_t sought = do_sysseek(gv, offset, whence);
2006 if (sought < 0)
146174a9
CB		 2007 PUSHs(&PL_sv_undef);
2008 else {
b448e4fe 2009 SV* sv = sought ?
146174a9 2010#if LSEEKSIZE > IVSIZE
b448e4fe 2011 newSVnv((NV)sought)
146174a9 2012#else
b448e4fe 2013 newSViv(sought)
146174a9
CB		 2014#endif
2015 : newSVpvn(zero_but_true, ZBTLEN);
2016 PUSHs(sv_2mortal(sv));
2017 }
8903cb82 2018 }
a0d0e21e
LW		 2019 RETURN;
2020}
2021
2022PP(pp_truncate)
2023{
39644a26 2024 dSP;
8c99d73e
GS		 2025 /* There seems to be no consensus on the length type of truncate()
2026 * and ftruncate(), both off_t and size_t have supporters. In
2027 * general one would think that when using large files, off_t is
2028 * at least as wide as size_t, so using an off_t should be okay. */
2029 /* XXX Configure probe for the length type of *truncate() needed XXX */
2030 Off_t len;
a0d0e21e 2031
25342a55 2032#if Off_t_size > IVSIZE
8c99d73e
GS		 2033 len = (Off_t)POPn;
2034#else
2035 len = (Off_t)POPi;
2036#endif
2037 /* Checking for length < 0 is problematic as the type might or
301e8125 2038 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2039 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2040 SETERRNO(0,0);
5d94fbed 2041#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2042 {
2043 STRLEN n_a;
2044 int result = 1;
2045 GV *tmpgv;
fe1d0b35
JH		 2046 IO *io;
2047
d05c1ba0
JH		 2048 if (PL_op->op_flags & OPf_SPECIAL) {
2049 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2050
fe1d0b35
JH		 2051 do_ftruncate_gv:
2052 if (!GvIO(tmpgv))
2053 result = 0;
d05c1ba0 2054 else {
fe1d0b35
JH		 2055 PerlIO *fp;
2056 io = GvIOp(tmpgv);
2057 do_ftruncate_io:
2058 TAINT_PROPER("truncate");
2059 if (!(fp = IoIFP(io))) {
2060 result = 0;
2061 }
2062 else {
2063 PerlIO_flush(fp);
cbdc8872 2064#ifdef HAS_TRUNCATE
fe1d0b35 2065 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2066#else
fe1d0b35 2067 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2068#endif
fe1d0b35
JH		 2069 result = 0;
2070 }
d05c1ba0 2071 }
cbdc8872 2072 }
d05c1ba0
JH		 2073 else {
2074 SV *sv = POPs;
2075 char *name;
72f496dc 2076
d05c1ba0
JH		 2077 if (SvTYPE(sv) == SVt_PVGV) {
2078 tmpgv = (GV*)sv; /* *main::FRED for example */
fe1d0b35 2079 goto do_ftruncate_gv;
d05c1ba0
JH		 2080 }
2081 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2082 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
fe1d0b35
JH		 2083 goto do_ftruncate_gv;
2084 }
2085 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2086 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2087 goto do_ftruncate_io;
d05c1ba0 2088 }
1e422769 2089
d05c1ba0
JH		 2090 name = SvPV(sv, n_a);
2091 TAINT_PROPER("truncate");
cbdc8872 2092#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2093 if (truncate(name, len) < 0)
2094 result = 0;
cbdc8872 2095#else
d05c1ba0
JH		 2096 {
2097 int tmpfd;
2098
2099 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2100 result = 0;
d05c1ba0
JH		 2101 else {
2102 if (my_chsize(tmpfd, len) < 0)
2103 result = 0;
2104 PerlLIO_close(tmpfd);
2105 }
cbdc8872 2106 }
a0d0e21e 2107#endif
d05c1ba0 2108 }
a0d0e21e 2109
d05c1ba0
JH		 2110 if (result)
2111 RETPUSHYES;
2112 if (!errno)
5b7ea690 2113 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2114 RETPUSHUNDEF;
2115 }
a0d0e21e 2116#else
cea2e8a9 2117 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2118#endif
2119}
2120
2121PP(pp_fcntl)
2122{
cea2e8a9 2123 return pp_ioctl();
a0d0e21e
LW		 2124}
2125
2126PP(pp_ioctl)
2127{
39644a26 2128 dSP; dTARGET;
748a9306 2129 SV *argsv = POPs;
3bb7c1b4 2130 unsigned int func = POPu;
533c011a 2131 int optype = PL_op->op_type;
a0d0e21e 2132 char *s;
324aa91a 2133 IV retval;
a0d0e21e 2134 GV *gv = (GV*)POPs;
c289d2f7 2135 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2136
748a9306 2137 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2138 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2139 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2140 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2141 RETPUSHUNDEF;
2142 }
2143
748a9306 2144 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2145 STRLEN len;
324aa91a 2146 STRLEN need;
748a9306 2147 s = SvPV_force(argsv, len);
324aa91a
HF		 2148 need = IOCPARM_LEN(func);
2149 if (len < need) {
2150 s = Sv_Grow(argsv, need + 1);
2151 SvCUR_set(argsv, need);
a0d0e21e
LW		 2152 }
2153
748a9306 2154 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2155 }
2156 else {
748a9306 2157 retval = SvIV(argsv);
c529f79d 2158 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2159 }
2160
2161 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2162
2163 if (optype == OP_IOCTL)
2164#ifdef HAS_IOCTL
76e3520e 2165 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2166#else
cea2e8a9 2167 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2168#endif
2169 else
c214f4ad
WB		 2170#ifndef HAS_FCNTL
2171 DIE(aTHX_ "fcntl is not implemented");
2172#else
55497cff 2173#if defined(OS2) && defined(__EMX__)
760ac839 2174 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2175#else
760ac839 2176 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2177#endif
f7288ffb 2178#endif
a0d0e21e 2179
f7288ffb 2180#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2181 if (SvPOK(argsv)) {
2182 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2183 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2184 OP_NAME(PL_op));
748a9306
LW		 2185 s[SvCUR(argsv)] = 0; /* put our null back */
2186 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2187 }
2188
2189 if (retval == -1)
2190 RETPUSHUNDEF;
2191 if (retval != 0) {
2192 PUSHi(retval);
2193 }
2194 else {
8903cb82 2195 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2196 }
4808266b 2197#endif
c214f4ad 2198 RETURN;
a0d0e21e
LW		 2199}
2200
2201PP(pp_flock)
2202{
9cad6237 2203#ifdef FLOCK
39644a26 2204 dSP; dTARGET;
a0d0e21e
LW		 2205 I32 value;
2206 int argtype;
2207 GV *gv;
bc37a18f 2208 IO *io = NULL;
760ac839 2209 PerlIO *fp;
16d20bd9 2210
a0d0e21e 2211 argtype = POPi;
32da55ab 2212 if (MAXARG == 0)
3280af22 2213 gv = PL_last_in_gv;
a0d0e21e
LW		 2214 else
2215 gv = (GV*)POPs;
bc37a18f
RG		 2216 if (gv && (io = GvIO(gv)))
2217 fp = IoIFP(io);
2218 else {
a0d0e21e 2219 fp = Nullfp;
bc37a18f
RG		 2220 io = NULL;
2221 }
a0d0e21e 2222 if (fp) {
68dc0745 2223 (void)PerlIO_flush(fp);
76e3520e 2224 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2225 }
cb50131a 2226 else {
bc37a18f
RG		 2227 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2228 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2229 value = 0;
5b7ea690 2230 SETERRNO(EBADF,RMS_IFI);
cb50131a 2231 }
a0d0e21e
LW		 2232 PUSHi(value);
2233 RETURN;
2234#else
cea2e8a9 2235 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2236#endif
2237}
2238
2239/* Sockets. */
2240
2241PP(pp_socket)
2242{
a0d0e21e 2243#ifdef HAS_SOCKET
9cad6237 2244 dSP;
a0d0e21e
LW		 2245 GV *gv;
2246 register IO *io;
2247 int protocol = POPi;
2248 int type = POPi;
2249 int domain = POPi;
2250 int fd;
2251
2252 gv = (GV*)POPs;
c289d2f7 2253 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2254
c289d2f7
JH		 2255 if (!gv || !io) {
2256 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2257 report_evil_fh(gv, io, PL_op->op_type);
2258 if (IoIFP(io))
2259 do_close(gv, FALSE);
5b7ea690 2260 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2261 RETPUSHUNDEF;
2262 }
2263
57171420
BS		 2264 if (IoIFP(io))
2265 do_close(gv, FALSE);
2266
a0d0e21e 2267 TAINT_PROPER("socket");
6ad3d225 2268 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2269 if (fd < 0)
2270 RETPUSHUNDEF;
43af864e
JH		 2271 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2272 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2273 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2274 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2275 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2276 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2277 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2278 RETPUSHUNDEF;
2279 }
8d2a6795
GS		 2280#if defined(HAS_FCNTL) && defined(F_SETFD)
2281 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2282#endif
a0d0e21e 2283
d5ff79b3
OF		 2284#ifdef EPOC
2285 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2286#endif
2287
a0d0e21e
LW		 2288 RETPUSHYES;
2289#else
cea2e8a9 2290 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2291#endif
2292}
2293
2294PP(pp_sockpair)
2295{
c95c94b1 2296#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2297 dSP;
a0d0e21e
LW		 2298 GV *gv1;
2299 GV *gv2;
2300 register IO *io1;
2301 register IO *io2;
2302 int protocol = POPi;
2303 int type = POPi;
2304 int domain = POPi;
2305 int fd[2];
2306
2307 gv2 = (GV*)POPs;
2308 gv1 = (GV*)POPs;
c289d2f7
JH		 2309 io1 = gv1 ? GvIOn(gv1) : NULL;
2310 io2 = gv2 ? GvIOn(gv2) : NULL;
2311 if (!gv1 || !gv2 || !io1 || !io2) {
2312 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2313 if (!gv1 || !io1)
2314 report_evil_fh(gv1, io1, PL_op->op_type);
2315 if (!gv2 || !io2)
2316 report_evil_fh(gv1, io2, PL_op->op_type);
2317 }
2318 if (IoIFP(io1))
2319 do_close(gv1, FALSE);
2320 if (IoIFP(io2))
2321 do_close(gv2, FALSE);
a0d0e21e 2322 RETPUSHUNDEF;
c289d2f7 2323 }
a0d0e21e 2324
dc0d0a5f
JH		 2325 if (IoIFP(io1))
2326 do_close(gv1, FALSE);
2327 if (IoIFP(io2))
2328 do_close(gv2, FALSE);
57171420 2329
a0d0e21e 2330 TAINT_PROPER("socketpair");
6ad3d225 2331 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2332 RETPUSHUNDEF;
43af864e
JH		 2333 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2334 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
50952442 2335 IoTYPE(io1) = IoTYPE_SOCKET;
43af864e
JH		 2336 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2337 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
50952442 2338 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2339 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2340 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2341 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2342 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2343 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2344 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2345 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2346 RETPUSHUNDEF;
2347 }
8d2a6795
GS		 2348#if defined(HAS_FCNTL) && defined(F_SETFD)
2349 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2350 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2351#endif
a0d0e21e
LW		 2352
2353 RETPUSHYES;
2354#else
cea2e8a9 2355 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2356#endif
2357}
2358
2359PP(pp_bind)
2360{
a0d0e21e 2361#ifdef HAS_SOCKET
9cad6237 2362 dSP;
eec2d3df 2363#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2364 extern void GETPRIVMODE();
2365 extern void GETUSERMODE();
eec2d3df 2366#endif
748a9306 2367 SV *addrsv = POPs;
a0d0e21e
LW		 2368 char *addr;
2369 GV *gv = (GV*)POPs;
2370 register IO *io = GvIOn(gv);
2371 STRLEN len;
eec2d3df
GS		 2372 int bind_ok = 0;
2373#ifdef MPE
2374 int mpeprivmode = 0;
2375#endif
a0d0e21e
LW		 2376
2377 if (!io || !IoIFP(io))
2378 goto nuts;
2379
748a9306 2380 addr = SvPV(addrsv, len);
a0d0e21e 2381 TAINT_PROPER("bind");
eec2d3df
GS		 2382#ifdef MPE /* Deal with MPE bind() peculiarities */
2383 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2384 /* The address *MUST* stupidly be zero. */
2385 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2386 /* PRIV mode is required to bind() to ports < 1024. */
2387 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2388 ((struct sockaddr_in *)addr)->sin_port > 0) {
2389 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2390 mpeprivmode = 1;
2391 }
2392 }
2393#endif /* MPE */
2394 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2395 (struct sockaddr *)addr, len) >= 0)
2396 bind_ok = 1;
2397
2398#ifdef MPE /* Switch back to USER mode */
2399 if (mpeprivmode)
2400 GETUSERMODE();
2401#endif /* MPE */
2402
2403 if (bind_ok)
a0d0e21e
LW		 2404 RETPUSHYES;
2405 else
2406 RETPUSHUNDEF;
2407
2408nuts:
599cee73 2409 if (ckWARN(WARN_CLOSED))
bc37a18f 2410 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2411 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2412 RETPUSHUNDEF;
2413#else
cea2e8a9 2414 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2415#endif
2416}
2417
2418PP(pp_connect)
2419{
a0d0e21e 2420#ifdef HAS_SOCKET
9cad6237 2421 dSP;
748a9306 2422 SV *addrsv = POPs;
a0d0e21e
LW		 2423 char *addr;
2424 GV *gv = (GV*)POPs;
2425 register IO *io = GvIOn(gv);
2426 STRLEN len;
2427
2428 if (!io || !IoIFP(io))
2429 goto nuts;
2430
748a9306 2431 addr = SvPV(addrsv, len);
a0d0e21e 2432 TAINT_PROPER("connect");
6ad3d225 2433 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2434 RETPUSHYES;
2435 else
2436 RETPUSHUNDEF;
2437
2438nuts:
599cee73 2439 if (ckWARN(WARN_CLOSED))
bc37a18f 2440 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2441 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2442 RETPUSHUNDEF;
2443#else
cea2e8a9 2444 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2445#endif
2446}
2447
2448PP(pp_listen)
2449{
a0d0e21e 2450#ifdef HAS_SOCKET
9cad6237 2451 dSP;
a0d0e21e
LW		 2452 int backlog = POPi;
2453 GV *gv = (GV*)POPs;
c289d2f7 2454 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2455
c289d2f7 2456 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2457 goto nuts;
2458
6ad3d225 2459 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2460 RETPUSHYES;
2461 else
2462 RETPUSHUNDEF;
2463
2464nuts:
599cee73 2465 if (ckWARN(WARN_CLOSED))
bc37a18f 2466 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2467 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2468 RETPUSHUNDEF;
2469#else
cea2e8a9 2470 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2471#endif
2472}
2473
2474PP(pp_accept)
2475{
a0d0e21e 2476#ifdef HAS_SOCKET
9cad6237 2477 dSP; dTARGET;
a0d0e21e
LW		 2478 GV *ngv;
2479 GV *ggv;
2480 register IO *nstio;
2481 register IO *gstio;
4633a7c4 2482 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2483 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2484 int fd;
2485
2486 ggv = (GV*)POPs;
2487 ngv = (GV*)POPs;
2488
2489 if (!ngv)
2490 goto badexit;
2491 if (!ggv)
2492 goto nuts;
2493
2494 gstio = GvIO(ggv);
2495 if (!gstio || !IoIFP(gstio))
2496 goto nuts;
2497
2498 nstio = GvIOn(ngv);
6ad3d225 2499 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2500 if (fd < 0)
2501 goto badexit;
a70048fb
AB		 2502 if (IoIFP(nstio))
2503 do_close(ngv, FALSE);
43af864e 2504 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
d0a5c47c 2505 IoOFP(nstio) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2506 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2507 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2508 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2509 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2510 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2511 goto badexit;
2512 }
8d2a6795
GS		 2513#if defined(HAS_FCNTL) && defined(F_SETFD)
2514 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2515#endif
a0d0e21e 2516
ed79a026 2517#ifdef EPOC
a9f1f6b0
OF		 2518 len = sizeof saddr; /* EPOC somehow truncates info */
2519 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2520#endif
bfd7eeef
JH		 2521#ifdef __SCO_VERSION__
2522 len = sizeof saddr; /* OpenUNIX 8 somehow truncates info */
2523#endif
ed79a026 2524
748a9306 2525 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2526 RETURN;
2527
2528nuts:
599cee73 2529 if (ckWARN(WARN_CLOSED))
bc37a18f 2530 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
5b7ea690 2531 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2532
2533badexit:
2534 RETPUSHUNDEF;
2535
2536#else
cea2e8a9 2537 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2538#endif
2539}
2540
2541PP(pp_shutdown)
2542{
a0d0e21e 2543#ifdef HAS_SOCKET
9cad6237 2544 dSP; dTARGET;
a0d0e21e
LW		 2545 int how = POPi;
2546 GV *gv = (GV*)POPs;
2547 register IO *io = GvIOn(gv);
2548
2549 if (!io || !IoIFP(io))
2550 goto nuts;
2551
6ad3d225 2552 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2553 RETURN;
2554
2555nuts:
599cee73 2556 if (ckWARN(WARN_CLOSED))
bc37a18f 2557 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2558 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2559 RETPUSHUNDEF;
2560#else
cea2e8a9 2561 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2562#endif
2563}
2564
2565PP(pp_gsockopt)
2566{
2567#ifdef HAS_SOCKET
cea2e8a9 2568 return pp_ssockopt();
a0d0e21e 2569#else
cea2e8a9 2570 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2571#endif
2572}
2573
2574PP(pp_ssockopt)
2575{
a0d0e21e 2576#ifdef HAS_SOCKET
9cad6237 2577 dSP;
533c011a 2578 int optype = PL_op->op_type;
a0d0e21e
LW		 2579 SV *sv;
2580 int fd;
2581 unsigned int optname;
2582 unsigned int lvl;
2583 GV *gv;
2584 register IO *io;
1e422769 2585 Sock_size_t len;
a0d0e21e
LW		 2586
2587 if (optype == OP_GSOCKOPT)
2588 sv = sv_2mortal(NEWSV(22, 257));
2589 else
2590 sv = POPs;
2591 optname = (unsigned int) POPi;
2592 lvl = (unsigned int) POPi;
2593
2594 gv = (GV*)POPs;
2595 io = GvIOn(gv);
2596 if (!io || !IoIFP(io))
2597 goto nuts;
2598
760ac839 2599 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2600 switch (optype) {
2601 case OP_GSOCKOPT:
748a9306 2602 SvGROW(sv, 257);
a0d0e21e 2603 (void)SvPOK_only(sv);
748a9306
LW		 2604 SvCUR_set(sv,256);
2605 *SvEND(sv) ='\0';
1e422769 2606 len = SvCUR(sv);
6ad3d225 2607 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2608 goto nuts2;
1e422769 2609 SvCUR_set(sv, len);
748a9306 2610 *SvEND(sv) ='\0';
a0d0e21e
LW		 2611 PUSHs(sv);
2612 break;
2613 case OP_SSOCKOPT: {
1e422769 2614 char *buf;
2615 int aint;
2616 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2617 STRLEN l;
2618 buf = SvPV(sv, l);
2619 len = l;
1e422769 2620 }
56ee1660 2621 else {
a0d0e21e
LW		 2622 aint = (int)SvIV(sv);
2623 buf = (char*)&aint;
2624 len = sizeof(int);
2625 }
6ad3d225 2626 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2627 goto nuts2;
3280af22 2628 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2629 }
2630 break;
2631 }
2632 RETURN;
2633
2634nuts:
599cee73 2635 if (ckWARN(WARN_CLOSED))
bc37a18f 2636 report_evil_fh(gv, io, optype);
5b7ea690 2637 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2638nuts2:
2639 RETPUSHUNDEF;
2640
2641#else
cea2e8a9 2642 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2643#endif
2644}
2645
2646PP(pp_getsockname)
2647{
2648#ifdef HAS_SOCKET
cea2e8a9 2649 return pp_getpeername();
a0d0e21e 2650#else
cea2e8a9 2651 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2652#endif
2653}
2654
2655PP(pp_getpeername)
2656{
a0d0e21e 2657#ifdef HAS_SOCKET
9cad6237 2658 dSP;
533c011a 2659 int optype = PL_op->op_type;
a0d0e21e
LW		 2660 SV *sv;
2661 int fd;
2662 GV *gv = (GV*)POPs;
2663 register IO *io = GvIOn(gv);
1e422769 2664 Sock_size_t len;
a0d0e21e
LW		 2665
2666 if (!io || !IoIFP(io))
2667 goto nuts;
2668
2669 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2670 (void)SvPOK_only(sv);
1e422769 2671 len = 256;
2672 SvCUR_set(sv, len);
748a9306 2673 *SvEND(sv) ='\0';
760ac839 2674 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2675 switch (optype) {
2676 case OP_GETSOCKNAME:
6ad3d225 2677 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2678 goto nuts2;
2679 break;
2680 case OP_GETPEERNAME:
6ad3d225 2681 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2682 goto nuts2;
490ab354
JH		 2683#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2684 {
2685 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";
2686 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2687 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2688 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2689 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2690 goto nuts2;
490ab354
JH		 2691 }
2692 }
2693#endif
a0d0e21e
LW		 2694 break;
2695 }
13826f2c
CS		 2696#ifdef BOGUS_GETNAME_RETURN
2697 /* Interactive Unix, getpeername() and getsockname()
2698 does not return valid namelen */
1e422769 2699 if (len == BOGUS_GETNAME_RETURN)
2700 len = sizeof(struct sockaddr);
13826f2c 2701#endif
1e422769 2702 SvCUR_set(sv, len);
748a9306 2703 *SvEND(sv) ='\0';
a0d0e21e
LW		 2704 PUSHs(sv);
2705 RETURN;
2706
2707nuts:
599cee73 2708 if (ckWARN(WARN_CLOSED))
bc37a18f 2709 report_evil_fh(gv, io, optype);
5b7ea690 2710 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2711nuts2:
2712 RETPUSHUNDEF;
2713
2714#else
cea2e8a9 2715 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2716#endif
2717}
2718
2719/* Stat calls. */
2720
2721PP(pp_lstat)
2722{
cea2e8a9 2723 return pp_stat();
a0d0e21e
LW		 2724}
2725
2726PP(pp_stat)
2727{
39644a26 2728 dSP;
2dd78f96 2729 GV *gv;
54310121 2730 I32 gimme;
a0d0e21e 2731 I32 max = 13;
2d8e6c8d 2732 STRLEN n_a;
a0d0e21e 2733
533c011a 2734 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2735 gv = cGVOP_gv;
8a4e5b40 2736 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2737 if (gv != PL_defgv) {
2738 if (ckWARN(WARN_IO))
9014280d 2739 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2740 "lstat() on filehandle %s", GvENAME(gv));
2741 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2742 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2743 }
2744
748a9306 2745 do_fstat:
2dd78f96 2746 if (gv != PL_defgv) {
3280af22 2747 PL_laststype = OP_STAT;
2dd78f96 2748 PL_statgv = gv;
3280af22 2749 sv_setpv(PL_statname, "");
2dd78f96
JH		 2750 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2751 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2752 }
9ddeeac9 2753 if (PL_laststatval < 0) {
2dd78f96
JH		 2754 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2755 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2756 max = 0;
9ddeeac9 2757 }
a0d0e21e
LW		 2758 }
2759 else {
748a9306
LW		 2760 SV* sv = POPs;
2761 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2762 gv = (GV*)sv;
748a9306
LW		 2763 goto do_fstat;
2764 }
2765 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2766 gv = (GV*)SvRV(sv);
5d3e98de 2767 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2768 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2769 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2770 goto do_fstat;
2771 }
2d8e6c8d 2772 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2773 PL_statgv = Nullgv;
a0d0e21e 2774#ifdef HAS_LSTAT
533c011a
NIS		 2775 PL_laststype = PL_op->op_type;
2776 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2777 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2778 else
2779#endif
2d8e6c8d 2780 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2781 if (PL_laststatval < 0) {
2d8e6c8d 2782 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2783 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2784 max = 0;
2785 }
2786 }
2787
54310121 2788 gimme = GIMME_V;
2789 if (gimme != G_ARRAY) {
2790 if (gimme != G_VOID)
2791 XPUSHs(boolSV(max));
2792 RETURN;
a0d0e21e
LW		 2793 }
2794 if (max) {
36477c24 2795 EXTEND(SP, max);
2796 EXTEND_MORTAL(max);
1ff81528
PL		 2797 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2798 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2799 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2800 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2801#if Uid_t_size > IVSIZE
2802 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2803#else
23dcd6c8 2804# if Uid_t_sign <= 0
1ff81528 2805 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2806# else
2807 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2808# endif
146174a9 2809#endif
301e8125 2810#if Gid_t_size > IVSIZE
146174a9
CB		 2811 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2812#else
23dcd6c8 2813# if Gid_t_sign <= 0
1ff81528 2814 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2815# else
2816 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2817# endif
146174a9 2818#endif
cbdc8872 2819#ifdef USE_STAT_RDEV
1ff81528 2820 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2821#else
79cb57f6 2822 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2823#endif
146174a9 2824#if Off_t_size > IVSIZE
4f4e7967 2825 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2826#else
1ff81528 2827 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2828#endif
cbdc8872 2829#ifdef BIG_TIME
172ae379
JH		 2830 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2831 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2832 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2833#else
1ff81528
PL		 2834 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2835 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2837#endif
a0d0e21e 2838#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2839 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2840 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2841#else
79cb57f6
GS		 2842 PUSHs(sv_2mortal(newSVpvn("", 0)));
2843 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2844#endif
2845 }
2846 RETURN;
2847}
2848
2849PP(pp_ftrread)
2850{
9cad6237 2851 I32 result;
2a3ff820 2852 dSP;
5ff3f7a4 2853#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2854 STRLEN n_a;
bfd7eeef
JH		 2855 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2856 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2857 if (result == 0)
2858 RETPUSHYES;
2859 if (result < 0)
2860 RETPUSHUNDEF;
2861 RETPUSHNO;
22865c03
GS		 2862 }
2863 else
cea2e8a9 2864 result = my_stat();
5ff3f7a4 2865#else
cea2e8a9 2866 result = my_stat();
5ff3f7a4 2867#endif
22865c03 2868 SPAGAIN;
a0d0e21e
LW		 2869 if (result < 0)
2870 RETPUSHUNDEF;
3280af22 2871 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2872 RETPUSHYES;
2873 RETPUSHNO;
2874}
2875
2876PP(pp_ftrwrite)
2877{
9cad6237 2878 I32 result;
2a3ff820 2879 dSP;
5ff3f7a4 2880#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2881 STRLEN n_a;
bfd7eeef
JH		 2882 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2883 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2884 if (result == 0)
2885 RETPUSHYES;
2886 if (result < 0)
2887 RETPUSHUNDEF;
2888 RETPUSHNO;
22865c03
GS		 2889 }
2890 else
cea2e8a9 2891 result = my_stat();
5ff3f7a4 2892#else
cea2e8a9 2893 result = my_stat();
5ff3f7a4 2894#endif
22865c03 2895 SPAGAIN;
a0d0e21e
LW		 2896 if (result < 0)
2897 RETPUSHUNDEF;
3280af22 2898 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2899 RETPUSHYES;
2900 RETPUSHNO;
2901}
2902
2903PP(pp_ftrexec)
2904{
9cad6237 2905 I32 result;
2a3ff820 2906 dSP;
5ff3f7a4 2907#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2908 STRLEN n_a;
bfd7eeef
JH		 2909 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2910 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2911 if (result == 0)
2912 RETPUSHYES;
2913 if (result < 0)
2914 RETPUSHUNDEF;
2915 RETPUSHNO;
22865c03
GS		 2916 }
2917 else
cea2e8a9 2918 result = my_stat();
5ff3f7a4 2919#else
cea2e8a9 2920 result = my_stat();
5ff3f7a4 2921#endif
22865c03 2922 SPAGAIN;
a0d0e21e
LW		 2923 if (result < 0)
2924 RETPUSHUNDEF;
3280af22 2925 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2926 RETPUSHYES;
2927 RETPUSHNO;
2928}
2929
2930PP(pp_fteread)
2931{
9cad6237 2932 I32 result;
2a3ff820 2933 dSP;
5ff3f7a4 2934#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2935 STRLEN n_a;
bfd7eeef
JH		 2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2937 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2938 if (result == 0)
2939 RETPUSHYES;
2940 if (result < 0)
2941 RETPUSHUNDEF;
2942 RETPUSHNO;
22865c03
GS		 2943 }
2944 else
cea2e8a9 2945 result = my_stat();
5ff3f7a4 2946#else
cea2e8a9 2947 result = my_stat();
5ff3f7a4 2948#endif
22865c03 2949 SPAGAIN;
a0d0e21e
LW		 2950 if (result < 0)
2951 RETPUSHUNDEF;
3280af22 2952 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2953 RETPUSHYES;
2954 RETPUSHNO;
2955}
2956
2957PP(pp_ftewrite)
2958{
9cad6237 2959 I32 result;
2a3ff820 2960 dSP;
5ff3f7a4 2961#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2962 STRLEN n_a;
bfd7eeef
JH		 2963 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2964 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 2965 if (result == 0)
2966 RETPUSHYES;
2967 if (result < 0)
2968 RETPUSHUNDEF;
2969 RETPUSHNO;
22865c03
GS		 2970 }
2971 else
cea2e8a9 2972 result = my_stat();
5ff3f7a4 2973#else
cea2e8a9 2974 result = my_stat();
5ff3f7a4 2975#endif
22865c03 2976 SPAGAIN;
a0d0e21e
LW		 2977 if (result < 0)
2978 RETPUSHUNDEF;
3280af22 2979 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2980 RETPUSHYES;
2981 RETPUSHNO;
2982}
2983
2984PP(pp_fteexec)
2985{
9cad6237 2986 I32 result;
2a3ff820 2987 dSP;
5ff3f7a4 2988#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2989 STRLEN n_a;
bfd7eeef
JH		 2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2991 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 2992 if (result == 0)
2993 RETPUSHYES;
2994 if (result < 0)
2995 RETPUSHUNDEF;
2996 RETPUSHNO;
22865c03
GS		 2997 }
2998 else
cea2e8a9 2999 result = my_stat();
5ff3f7a4 3000#else
cea2e8a9 3001 result = my_stat();
5ff3f7a4 3002#endif
22865c03 3003 SPAGAIN;
a0d0e21e
LW		 3004 if (result < 0)
3005 RETPUSHUNDEF;
3280af22 3006 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3007 RETPUSHYES;
3008 RETPUSHNO;
3009}
3010
3011PP(pp_ftis)
3012{
9cad6237 3013 I32 result = my_stat();
2a3ff820 3014 dSP;
a0d0e21e
LW		 3015 if (result < 0)
3016 RETPUSHUNDEF;
3017 RETPUSHYES;
3018}
3019
3020PP(pp_fteowned)
3021{
cea2e8a9 3022 return pp_ftrowned();
a0d0e21e
LW		 3023}
3024
3025PP(pp_ftrowned)
3026{
9cad6237 3027 I32 result = my_stat();
2a3ff820 3028 dSP;
a0d0e21e
LW		 3029 if (result < 0)
3030 RETPUSHUNDEF;
146174a9
CB		 3031 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3032 PL_euid : PL_uid) )
a0d0e21e
LW		 3033 RETPUSHYES;
3034 RETPUSHNO;
3035}
3036
3037PP(pp_ftzero)
3038{
9cad6237 3039 I32 result = my_stat();
2a3ff820 3040 dSP;
a0d0e21e
LW		 3041 if (result < 0)
3042 RETPUSHUNDEF;
146174a9 3043 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3044 RETPUSHYES;
3045 RETPUSHNO;
3046}
3047
3048PP(pp_ftsize)
3049{
9cad6237 3050 I32 result = my_stat();
2a3ff820 3051 dSP; dTARGET;
a0d0e21e
LW		 3052 if (result < 0)
3053 RETPUSHUNDEF;
146174a9
CB		 3054#if Off_t_size > IVSIZE
3055 PUSHn(PL_statcache.st_size);
3056#else
3280af22 3057 PUSHi(PL_statcache.st_size);
146174a9 3058#endif
a0d0e21e
LW		 3059 RETURN;
3060}
3061
3062PP(pp_ftmtime)
3063{
9cad6237 3064 I32 result = my_stat();
2a3ff820 3065 dSP; dTARGET;
a0d0e21e
LW		 3066 if (result < 0)
3067 RETPUSHUNDEF;
c6419e06 3068 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 3069 RETURN;
3070}
3071
3072PP(pp_ftatime)
3073{
9cad6237 3074 I32 result = my_stat();
2a3ff820 3075 dSP; dTARGET;
a0d0e21e
LW		 3076 if (result < 0)
3077 RETPUSHUNDEF;
c6419e06 3078 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3079 RETURN;
3080}
3081
3082PP(pp_ftctime)
3083{
9cad6237 3084 I32 result = my_stat();
2a3ff820 3085 dSP; dTARGET;
a0d0e21e
LW		 3086 if (result < 0)
3087 RETPUSHUNDEF;
c6419e06 3088 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3089 RETURN;
3090}
3091
3092PP(pp_ftsock)
3093{
9cad6237 3094 I32 result = my_stat();
2a3ff820 3095 dSP;
a0d0e21e
LW		 3096 if (result < 0)
3097 RETPUSHUNDEF;
3280af22 3098 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3099 RETPUSHYES;
3100 RETPUSHNO;
3101}
3102
3103PP(pp_ftchr)
3104{
9cad6237 3105 I32 result = my_stat();
2a3ff820 3106 dSP;
a0d0e21e
LW		 3107 if (result < 0)
3108 RETPUSHUNDEF;
3280af22 3109 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3110 RETPUSHYES;
3111 RETPUSHNO;
3112}
3113
3114PP(pp_ftblk)
3115{
9cad6237 3116 I32 result = my_stat();
2a3ff820 3117 dSP;
a0d0e21e
LW		 3118 if (result < 0)
3119 RETPUSHUNDEF;
3280af22 3120 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3121 RETPUSHYES;
3122 RETPUSHNO;
3123}
3124
3125PP(pp_ftfile)
3126{
9cad6237 3127 I32 result = my_stat();
2a3ff820 3128 dSP;
a0d0e21e
LW		 3129 if (result < 0)
3130 RETPUSHUNDEF;
3280af22 3131 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3132 RETPUSHYES;
3133 RETPUSHNO;
3134}
3135
3136PP(pp_ftdir)
3137{
9cad6237 3138 I32 result = my_stat();
2a3ff820 3139 dSP;
a0d0e21e
LW		 3140 if (result < 0)
3141 RETPUSHUNDEF;
3280af22 3142 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3143 RETPUSHYES;
3144 RETPUSHNO;
3145}
3146
3147PP(pp_ftpipe)
3148{
9cad6237 3149 I32 result = my_stat();
2a3ff820 3150 dSP;
a0d0e21e
LW		 3151 if (result < 0)
3152 RETPUSHUNDEF;
3280af22 3153 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3154 RETPUSHYES;
3155 RETPUSHNO;
3156}
3157
3158PP(pp_ftlink)
3159{
9cad6237 3160 I32 result = my_lstat();
2a3ff820 3161 dSP;
a0d0e21e
LW		 3162 if (result < 0)
3163 RETPUSHUNDEF;
3280af22 3164 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3165 RETPUSHYES;
3166 RETPUSHNO;
3167}
3168
3169PP(pp_ftsuid)
3170{
39644a26 3171 dSP;
a0d0e21e 3172#ifdef S_ISUID
cea2e8a9 3173 I32 result = my_stat();
a0d0e21e
LW		 3174 SPAGAIN;
3175 if (result < 0)
3176 RETPUSHUNDEF;
3280af22 3177 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3178 RETPUSHYES;
3179#endif
3180 RETPUSHNO;
3181}
3182
3183PP(pp_ftsgid)
3184{
39644a26 3185 dSP;
a0d0e21e 3186#ifdef S_ISGID
cea2e8a9 3187 I32 result = my_stat();
a0d0e21e
LW		 3188 SPAGAIN;
3189 if (result < 0)
3190 RETPUSHUNDEF;
3280af22 3191 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3192 RETPUSHYES;
3193#endif
3194 RETPUSHNO;
3195}
3196
3197PP(pp_ftsvtx)
3198{
39644a26 3199 dSP;
a0d0e21e 3200#ifdef S_ISVTX
cea2e8a9 3201 I32 result = my_stat();
a0d0e21e
LW		 3202 SPAGAIN;
3203 if (result < 0)
3204 RETPUSHUNDEF;
3280af22 3205 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3206 RETPUSHYES;
3207#endif
3208 RETPUSHNO;
3209}
3210
3211PP(pp_fttty)
3212{
39644a26 3213 dSP;
a0d0e21e
LW		 3214 int fd;
3215 GV *gv;
fb73857a 3216 char *tmps = Nullch;
2d8e6c8d 3217 STRLEN n_a;
fb73857a 3218
533c011a 3219 if (PL_op->op_flags & OPf_REF)
146174a9 3220 gv = cGVOP_gv;
fb73857a 3221 else if (isGV(TOPs))
3222 gv = (GV*)POPs;
3223 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3224 gv = (GV*)SvRV(POPs);
a0d0e21e 3225 else
2d8e6c8d 3226 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3227
a0d0e21e 3228 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3229 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3230 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3231 fd = atoi(tmps);
3232 else
3233 RETPUSHUNDEF;
6ad3d225 3234 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3235 RETPUSHYES;
3236 RETPUSHNO;
3237}
3238
16d20bd9
AD		 3239#if defined(atarist) /* this will work with atariST. Configure will
3240 make guesses for other systems. */
3241# define FILE_base(f) ((f)->_base)
3242# define FILE_ptr(f) ((f)->_ptr)
3243# define FILE_cnt(f) ((f)->_cnt)
3244# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3245#endif
3246
3247PP(pp_fttext)
3248{
39644a26 3249 dSP;
a0d0e21e
LW		 3250 I32 i;
3251 I32 len;
3252 I32 odd = 0;
3253 STDCHAR tbuf[512];
3254 register STDCHAR *s;
3255 register IO *io;
5f05dabc 3256 register SV *sv;
3257 GV *gv;
2d8e6c8d 3258 STRLEN n_a;
146174a9 3259 PerlIO *fp;
a0d0e21e 3260
533c011a 3261 if (PL_op->op_flags & OPf_REF)
146174a9 3262 gv = cGVOP_gv;
5f05dabc 3263 else if (isGV(TOPs))
3264 gv = (GV*)POPs;
3265 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3266 gv = (GV*)SvRV(POPs);
3267 else
3268 gv = Nullgv;
3269
3270 if (gv) {
a0d0e21e 3271 EXTEND(SP, 1);
3280af22
NIS		 3272 if (gv == PL_defgv) {
3273 if (PL_statgv)
3274 io = GvIO(PL_statgv);
a0d0e21e 3275 else {
3280af22 3276 sv = PL_statname;
a0d0e21e
LW		 3277 goto really_filename;
3278 }
3279 }
3280 else {
3280af22
NIS		 3281 PL_statgv = gv;
3282 PL_laststatval = -1;
3283 sv_setpv(PL_statname, "");
3284 io = GvIO(PL_statgv);
a0d0e21e
LW		 3285 }
3286 if (io && IoIFP(io)) {
5f05dabc 3287 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3288 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3289 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3290 if (PL_laststatval < 0)
5f05dabc 3291 RETPUSHUNDEF;
9cbac4c7 3292 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3293 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3294 RETPUSHNO;
3295 else
3296 RETPUSHYES;
9cbac4c7 3297 }
a20bf0c3 3298 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3299 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3300 if (i != EOF)
760ac839 3301 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3302 }
a20bf0c3 3303 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3304 RETPUSHYES;
a20bf0c3
JH		 3305 len = PerlIO_get_bufsiz(IoIFP(io));
3306 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3307 /* sfio can have large buffers - limit to 512 */
3308 if (len > 512)
3309 len = 512;
a0d0e21e
LW		 3310 }
3311 else {
2dd78f96 3312 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3313 gv = cGVOP_gv;
2dd78f96 3314 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3315 }
5b7ea690 3316 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3317 RETPUSHUNDEF;
3318 }
3319 }
3320 else {
3321 sv = POPs;
5f05dabc 3322 really_filename:
3280af22
NIS		 3323 PL_statgv = Nullgv;
3324 PL_laststatval = -1;
5c9aa243 3325 PL_laststype = OP_STAT;
2d8e6c8d 3326 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3327 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
67bae6b3 3328 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3329 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3330 RETPUSHUNDEF;
3331 }
146174a9
CB		 3332 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3333 if (PL_laststatval < 0) {
3334 (void)PerlIO_close(fp);
5f05dabc 3335 RETPUSHUNDEF;
146174a9 3336 }
60382766 3337 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3338 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3339 (void)PerlIO_close(fp);
a0d0e21e 3340 if (len <= 0) {
533c011a 3341 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3342 RETPUSHNO; /* special case NFS directories */
3343 RETPUSHYES; /* null file is anything */
3344 }
3345 s = tbuf;
3346 }
3347
3348 /* now scan s to look for textiness */
4633a7c4 3349 /* XXX ASCII dependent code */
a0d0e21e 3350
146174a9
CB		 3351#if defined(DOSISH) || defined(USEMYBINMODE)
3352 /* ignore trailing ^Z on short files */
3353 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3354 --len;
3355#endif
3356
a0d0e21e
LW		 3357 for (i = 0; i < len; i++, s++) {
3358 if (!*s) { /* null never allowed in text */
3359 odd += len;
3360 break;
3361 }
9d116dd7 3362#ifdef EBCDIC
301e8125 3363 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3364 odd++;
3365#else
146174a9
CB		 3366 else if (*s & 128) {
3367#ifdef USE_LOCALE
2de3dbcc 3368 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3369 continue;
3370#endif
3371 /* utf8 characters don't count as odd */
fd400ab9 3372 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3373 int ulen = UTF8SKIP(s);
3374 if (ulen < len - i) {
3375 int j;
3376 for (j = 1; j < ulen; j++) {
fd400ab9 3377 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3378 goto not_utf8;
3379 }
3380 --ulen; /* loop does extra increment */
3381 s += ulen;
3382 i += ulen;
3383 continue;
3384 }
3385 }
3386 not_utf8:
3387 odd++;
146174a9 3388 }
a0d0e21e
LW		 3389 else if (*s < 32 &&
3390 *s != '\n' && *s != '\r' && *s != '\b' &&
3391 *s != '\t' && *s != '\f' && *s != 27)
3392 odd++;
9d116dd7 3393#endif
a0d0e21e
LW		 3394 }
3395
533c011a 3396 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3397 RETPUSHNO;
3398 else
3399 RETPUSHYES;
3400}
3401
3402PP(pp_ftbinary)
3403{
cea2e8a9 3404 return pp_fttext();
a0d0e21e
LW		 3405}
3406
3407/* File calls. */
3408
3409PP(pp_chdir)
3410{
39644a26 3411 dSP; dTARGET;
a0d0e21e
LW		 3412 char *tmps;
3413 SV **svp;
2d8e6c8d 3414 STRLEN n_a;
a0d0e21e 3415
35ae6b54
MS		 3416 if( MAXARG == 1 )
3417 tmps = POPpx;
3418 else
3419 tmps = 0;
3420
3421 if( !tmps || !*tmps ) {
3422 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3423 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3424#ifdef VMS
35ae6b54 3425 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3426#endif
35ae6b54
MS		 3427 )
3428 {
3429 if( MAXARG == 1 )
9014280d 3430 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3431 tmps = SvPV(*svp, n_a);
3432 }
72f496dc 3433 else {
389ec635 3434 PUSHi(0);
b7ab37f8 3435 TAINT_PROPER("chdir");
389ec635
MS		 3436 RETURN;
3437 }
8ea155d1 3438 }
8ea155d1 3439
a0d0e21e 3440 TAINT_PROPER("chdir");
6ad3d225 3441 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3442#ifdef VMS
3443 /* Clear the DEFAULT element of ENV so we'll get the new value
3444 * in the future. */
6b88bc9c 3445 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3446#endif
a0d0e21e
LW		 3447 RETURN;
3448}
3449
3450PP(pp_chown)
3451{
a0d0e21e 3452#ifdef HAS_CHOWN
76ffd3b9
IZ		 3453 dSP; dMARK; dTARGET;
3454 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3455
a0d0e21e
LW		 3456 SP = MARK;
3457 PUSHi(value);
3458 RETURN;
3459#else
0322a713 3460 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3461#endif
3462}
3463
3464PP(pp_chroot)
3465{
a0d0e21e 3466#ifdef HAS_CHROOT
76ffd3b9 3467 dSP; dTARGET;
2d8e6c8d 3468 STRLEN n_a;
d05c1ba0 3469 char *tmps = POPpx;
a0d0e21e
LW		 3470 TAINT_PROPER("chroot");
3471 PUSHi( chroot(tmps) >= 0 );
3472 RETURN;
3473#else
cea2e8a9 3474 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3475#endif
3476}
3477
3478PP(pp_unlink)
3479{
39644a26 3480 dSP; dMARK; dTARGET;
a0d0e21e 3481 I32 value;
533c011a 3482 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3483 SP = MARK;
3484 PUSHi(value);
3485 RETURN;
3486}
3487
3488PP(pp_chmod)
3489{
39644a26 3490 dSP; dMARK; dTARGET;
a0d0e21e 3491 I32 value;
533c011a 3492 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3493 SP = MARK;
3494 PUSHi(value);
3495 RETURN;
3496}
3497
3498PP(pp_utime)
3499{
39644a26 3500 dSP; dMARK; dTARGET;
a0d0e21e 3501 I32 value;
533c011a 3502 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3503 SP = MARK;
3504 PUSHi(value);
3505 RETURN;
3506}
3507
3508PP(pp_rename)
3509{
39644a26 3510 dSP; dTARGET;
a0d0e21e 3511 int anum;
2d8e6c8d 3512 STRLEN n_a;
a0d0e21e 3513
2d8e6c8d
GS		 3514 char *tmps2 = POPpx;
3515 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3516 TAINT_PROPER("rename");
3517#ifdef HAS_RENAME
baed7233 3518 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3519#else
6b88bc9c 3520 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3521 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3522 anum = 1;
3523 else {
3654eb6c 3524 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3525 (void)UNLINK(tmps2);
3526 if (!(anum = link(tmps, tmps2)))
3527 anum = UNLINK(tmps);
3528 }
a0d0e21e
LW		 3529 }
3530#endif
3531 SETi( anum >= 0 );
3532 RETURN;
3533}
3534
3535PP(pp_link)
3536{
a0d0e21e 3537#ifdef HAS_LINK
370f6000 3538 dSP; dTARGET;
2d8e6c8d
GS		 3539 STRLEN n_a;
3540 char *tmps2 = POPpx;
3541 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3542 TAINT_PROPER("link");
146174a9 3543 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3544 RETURN;
a0d0e21e 3545#else
0322a713 3546 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3547#endif
a0d0e21e
LW		 3548}
3549
3550PP(pp_symlink)
3551{
a0d0e21e 3552#ifdef HAS_SYMLINK
9cad6237 3553 dSP; dTARGET;
2d8e6c8d
GS		 3554 STRLEN n_a;
3555 char *tmps2 = POPpx;
3556 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3557 TAINT_PROPER("symlink");
3558 SETi( symlink(tmps, tmps2) >= 0 );
3559 RETURN;
3560#else
cea2e8a9 3561 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3562#endif
3563}
3564
3565PP(pp_readlink)
3566{
76ffd3b9 3567 dSP;
a0d0e21e 3568#ifdef HAS_SYMLINK
76ffd3b9 3569 dTARGET;
a0d0e21e 3570 char *tmps;
46fc3d4c 3571 char buf[MAXPATHLEN];
a0d0e21e 3572 int len;
2d8e6c8d 3573 STRLEN n_a;
46fc3d4c 3574
fb73857a 3575#ifndef INCOMPLETE_TAINTS
3576 TAINT;
3577#endif
2d8e6c8d 3578 tmps = POPpx;
97dcea33 3579 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3580 EXTEND(SP, 1);
3581 if (len < 0)
3582 RETPUSHUNDEF;
3583 PUSHp(buf, len);
3584 RETURN;
3585#else
3586 EXTEND(SP, 1);
3587 RETSETUNDEF; /* just pretend it's a normal file */
3588#endif
3589}
3590
3591#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3592STATIC int
cea2e8a9 3593S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3594{
1e422769 3595 char *save_filename = filename;
3596 char *cmdline;
3597 char *s;
760ac839 3598 PerlIO *myfp;
1e422769 3599 int anum = 1;
a0d0e21e 3600
1e422769 3601 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3602 strcpy(cmdline, cmd);
3603 strcat(cmdline, " ");
3604 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3605 *s++ = '\\';
3606 *s++ = *filename++;
3607 }
3608 strcpy(s, " 2>&1");
6ad3d225 3609 myfp = PerlProc_popen(cmdline, "r");
1e422769 3610 Safefree(cmdline);
3611
a0d0e21e 3612 if (myfp) {
1e422769 3613 SV *tmpsv = sv_newmortal();
6b88bc9c 3614 /* Need to save/restore 'PL_rs' ?? */
760ac839 3615 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3616 (void)PerlProc_pclose(myfp);
a0d0e21e 3617 if (s != Nullch) {
1e422769 3618 int e;
3619 for (e = 1;
a0d0e21e 3620#ifdef HAS_SYS_ERRLIST
1e422769 3621 e <= sys_nerr
3622#endif
3623 ; e++)
3624 {
3625 /* you don't see this */
3626 char *errmsg =
3627#ifdef HAS_SYS_ERRLIST
3628 sys_errlist[e]
a0d0e21e 3629#else
1e422769 3630 strerror(e)
a0d0e21e 3631#endif
1e422769 3632 ;
3633 if (!errmsg)
3634 break;
3635 if (instr(s, errmsg)) {
3636 SETERRNO(e,0);
3637 return 0;
3638 }
a0d0e21e 3639 }
748a9306 3640 SETERRNO(0,0);
a0d0e21e
LW		 3641#ifndef EACCES
3642#define EACCES EPERM
3643#endif
1e422769 3644 if (instr(s, "cannot make"))
5b7ea690 3645 SETERRNO(EEXIST,RMS_FEX);
1e422769 3646 else if (instr(s, "existing file"))
5b7ea690 3647 SETERRNO(EEXIST,RMS_FEX);
1e422769 3648 else if (instr(s, "ile exists"))
5b7ea690 3649 SETERRNO(EEXIST,RMS_FEX);
1e422769 3650 else if (instr(s, "non-exist"))
5b7ea690 3651 SETERRNO(ENOENT,RMS_FNF);
1e422769 3652 else if (instr(s, "does not exist"))
5b7ea690 3653 SETERRNO(ENOENT,RMS_FNF);
1e422769 3654 else if (instr(s, "not empty"))
5b7ea690 3655 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3656 else if (instr(s, "cannot access"))
5b7ea690 3657 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3658 else
5b7ea690 3659 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3660 return 0;
3661 }
3662 else { /* some mkdirs return no failure indication */
6b88bc9c 3663 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3664 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3665 anum = !anum;
3666 if (anum)
748a9306 3667 SETERRNO(0,0);
a0d0e21e 3668 else
5b7ea690 3669 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3670 }
3671 return anum;
3672 }
3673 else
3674 return 0;
3675}
3676#endif
3677
c04fee9e
JH		 3678/* This macro removes trailing slashes from a directory name.
3679 * Different operating and file systems take differently to
3680 * trailing slashes. According to POSIX 1003.1 1996 Edition
3681 * any number of trailing slashes should be allowed.
3682 * Thusly we snip them away so that even non-conforming
3683 * systems are happy.
3684 * We should probably do this "filtering" for all
3685 * the functions that expect (potentially) directory names:
3686 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3687 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3688
3689#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3690 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3691 do { \
3692 (len)--; \
3693 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3694 (tmps) = savepvn((tmps), (len)); \
3695 (copy) = TRUE; \
3696 }
3697
a0d0e21e
LW		 3698PP(pp_mkdir)
3699{
39644a26 3700 dSP; dTARGET;
5a211162 3701 int mode;
a0d0e21e
LW		 3702#ifndef HAS_MKDIR
3703 int oldumask;
3704#endif
df25ddba 3705 STRLEN len;
5a211162 3706 char *tmps;
df25ddba 3707 bool copy = FALSE;
5a211162
GS		 3708
3709 if (MAXARG > 1)
3710 mode = POPi;
3711 else
3712 mode = 0777;
3713
c04fee9e 3714 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3715
3716 TAINT_PROPER("mkdir");
3717#ifdef HAS_MKDIR
6ad3d225 3718 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3719#else
3720 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3721 oldumask = PerlLIO_umask(0);
3722 PerlLIO_umask(oldumask);
3723 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3724#endif
df25ddba
JH		 3725 if (copy)
3726 Safefree(tmps);
a0d0e21e
LW		 3727 RETURN;
3728}
3729
3730PP(pp_rmdir)
3731{
39644a26 3732 dSP; dTARGET;
c04fee9e 3733 STRLEN len;
a0d0e21e 3734 char *tmps;
c04fee9e 3735 bool copy = FALSE;
a0d0e21e 3736
c04fee9e 3737 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3738 TAINT_PROPER("rmdir");
3739#ifdef HAS_RMDIR
c04fee9e 3740 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3741#else
c04fee9e 3742 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3743#endif
c04fee9e
JH		 3744 if (copy)
3745 Safefree(tmps);
a0d0e21e
LW		 3746 RETURN;
3747}
3748
3749/* Directory calls. */
3750
3751PP(pp_open_dir)
3752{
a0d0e21e 3753#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3754 dSP;
2d8e6c8d
GS		 3755 STRLEN n_a;
3756 char *dirname = POPpx;
1e2c6ed7
JH		 3757 GV *gv = (GV*)POPs;
3758 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3759
3760 if (!io)
3761 goto nope;
3762
3763 if (IoDIRP(io))
6ad3d225
GS		 3764 PerlDir_close(IoDIRP(io));
3765 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3766 goto nope;
3767
3768 RETPUSHYES;
3769nope:
3770 if (!errno)
5b7ea690 3771 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3772 RETPUSHUNDEF;
3773#else
cea2e8a9 3774 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3775#endif
3776}
3777
3778PP(pp_readdir)
3779{
a0d0e21e 3780#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3781 dSP;
fd8cd3a3 3782#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3783 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3784#endif
3785 register Direntry_t *dp;
3786 GV *gv = (GV*)POPs;
3787 register IO *io = GvIOn(gv);
fb73857a 3788 SV *sv;
a0d0e21e
LW		 3789
3790 if (!io || !IoDIRP(io))
3791 goto nope;
3792
3793 if (GIMME == G_ARRAY) {
3794 /*SUPPRESS 560*/
155aba94 3795 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3796#ifdef DIRNAMLEN
79cb57f6 3797 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3798#else
fb73857a 3799 sv = newSVpv(dp->d_name, 0);
3800#endif
3801#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3802 if (!(IoFLAGS(io) & IOf_UNTAINT))
3803 SvTAINTED_on(sv);
a0d0e21e 3804#endif
fb73857a 3805 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3806 }
3807 }
3808 else {
6ad3d225 3809 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3810 goto nope;
3811#ifdef DIRNAMLEN
79cb57f6 3812 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3813#else
fb73857a 3814 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3815#endif
fb73857a 3816#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3817 if (!(IoFLAGS(io) & IOf_UNTAINT))
3818 SvTAINTED_on(sv);
fb73857a 3819#endif
3820 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3821 }
3822 RETURN;
3823
3824nope:
3825 if (!errno)
5b7ea690 3826 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3827 if (GIMME == G_ARRAY)
3828 RETURN;
3829 else
3830 RETPUSHUNDEF;
3831#else
cea2e8a9 3832 DIE(aTHX_ PL_no_dir_func, "readdir");
a0d0e21e
LW		 3833#endif
3834}
3835
3836PP(pp_telldir)
3837{
a0d0e21e 3838#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3839 dSP; dTARGET;
968dcd91
JH		 3840 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3841 /* XXX netbsd still seemed to.
3842 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3843 --JHI 1999-Feb-02 */
3844# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3845 long telldir (DIR *);
dfe9444c 3846# endif
a0d0e21e
LW		 3847 GV *gv = (GV*)POPs;
3848 register IO *io = GvIOn(gv);
3849
3850 if (!io || !IoDIRP(io))
3851 goto nope;
3852
6ad3d225 3853 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3854 RETURN;
3855nope:
3856 if (!errno)
5b7ea690 3857 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3858 RETPUSHUNDEF;
3859#else
cea2e8a9 3860 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3861#endif
3862}
3863
3864PP(pp_seekdir)
3865{
a0d0e21e 3866#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3867 dSP;
a0d0e21e
LW		 3868 long along = POPl;
3869 GV *gv = (GV*)POPs;
3870 register IO *io = GvIOn(gv);
3871
3872 if (!io || !IoDIRP(io))
3873 goto nope;
3874
6ad3d225 3875 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3876
3877 RETPUSHYES;
3878nope:
3879 if (!errno)
5b7ea690 3880 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3881 RETPUSHUNDEF;
3882#else
cea2e8a9 3883 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3884#endif
3885}
3886
3887PP(pp_rewinddir)
3888{
a0d0e21e 3889#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3890 dSP;
a0d0e21e
LW		 3891 GV *gv = (GV*)POPs;
3892 register IO *io = GvIOn(gv);
3893
3894 if (!io || !IoDIRP(io))
3895 goto nope;
3896
6ad3d225 3897 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3898 RETPUSHYES;
3899nope:
3900 if (!errno)
5b7ea690 3901 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3902 RETPUSHUNDEF;
3903#else
cea2e8a9 3904 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3905#endif
3906}
3907
3908PP(pp_closedir)
3909{
a0d0e21e 3910#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3911 dSP;
a0d0e21e
LW		 3912 GV *gv = (GV*)POPs;
3913 register IO *io = GvIOn(gv);
3914
3915 if (!io || !IoDIRP(io))
3916 goto nope;
3917
3918#ifdef VOID_CLOSEDIR
6ad3d225 3919 PerlDir_close(IoDIRP(io));
a0d0e21e 3920#else
6ad3d225 3921 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3922 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3923 goto nope;
748a9306 3924 }
a0d0e21e
LW		 3925#endif
3926 IoDIRP(io) = 0;
3927
3928 RETPUSHYES;
3929nope:
3930 if (!errno)
5b7ea690 3931 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3932 RETPUSHUNDEF;
3933#else
cea2e8a9 3934 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3935#endif
3936}
3937
3938/* Process control. */
3939
3940PP(pp_fork)
3941{
44a8e56a 3942#ifdef HAS_FORK
39644a26 3943 dSP; dTARGET;
761237fe 3944 Pid_t childpid;
a0d0e21e
LW		 3945 GV *tmpgv;
3946
3947 EXTEND(SP, 1);
45bc9206 3948 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3949 childpid = PerlProc_fork();
a0d0e21e
LW		 3950 if (childpid < 0)
3951 RETSETUNDEF;
3952 if (!childpid) {
3953 /*SUPPRESS 560*/
306196c3
MS		 3954 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3955 SvREADONLY_off(GvSV(tmpgv));
146174a9 3956 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3957 SvREADONLY_on(GvSV(tmpgv));
3958 }
5b7ea690
JH		 3959#ifdef THREADS_HAVE_PIDS
3960 PL_ppid = (IV)getppid();
3961#endif
3280af22 3962 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 3963 }
3964 PUSHi(childpid);
3965 RETURN;
3966#else
146174a9 3967# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3968 dSP; dTARGET;
146174a9
CB		 3969 Pid_t childpid;
3970
3971 EXTEND(SP, 1);
3972 PERL_FLUSHALL_FOR_CHILD;
3973 childpid = PerlProc_fork();
60fa28ff
GS		 3974 if (childpid == -1)
3975 RETSETUNDEF;
146174a9
CB		 3976 PUSHi(childpid);
3977 RETURN;
3978# else
0322a713 3979 DIE(aTHX_ PL_no_func, "fork");
146174a9 3980# endif
a0d0e21e
LW		 3981#endif
3982}
3983
3984PP(pp_wait)
3985{
301e8125 3986#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3987 dSP; dTARGET;
761237fe 3988 Pid_t childpid;
a0d0e21e 3989 int argflags;
a0d0e21e 3990
5835a535
JH		 3991 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3992 childpid = wait4pid(-1, &argflags, 0);
3993 else {
3994 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3995 errno == EINTR) {
3996 PERL_ASYNC_CHECK();
3997 }
0a0ada86 3998 }
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;
5835a535
JH		 4022 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4023 childpid = wait4pid(childpid, &argflags, optype);
4024 else {
4025 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 &&
4026 errno == EINTR) {
4027 PERL_ASYNC_CHECK();
4028 }
0a0ada86 4029 }
68a29c53
GS		 4030# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4031 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4032 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4033# else
f86702cc 4034 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4035# endif
44a8e56a 4036 SETi(childpid);
a0d0e21e
LW		 4037 RETURN;
4038#else
0322a713 4039 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4040#endif
4041}
4042
4043PP(pp_system)
4044{
39644a26 4045 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4046 I32 value;
2d8e6c8d 4047 STRLEN n_a;
76ffd3b9 4048 int result;
e7766f89 4049 I32 did_pipes = 0;
a0d0e21e 4050
bbd7eb8a
RD		 4051 if (PL_tainting) {
4052 TAINT_ENV();
4053 while (++MARK <= SP) {
4054 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4055 if (PL_tainted)
bbd7eb8a
RD		 4056 break;
4057 }
4058 MARK = ORIGMARK;
5b7ea690 4059 TAINT_PROPER("system");
a0d0e21e 4060 }
45bc9206 4061 PERL_FLUSHALL_FOR_CHILD;
273b0206 4062#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4063 {
eb160463
GS		 4064 Pid_t childpid;
4065 int pp[2];
4066
4067 if (PerlProc_pipe(pp) >= 0)
4068 did_pipes = 1;
4069 while ((childpid = PerlProc_fork()) == -1) {
4070 if (errno != EAGAIN) {
4071 value = -1;
4072 SP = ORIGMARK;
4073 PUSHi(value);
4074 if (did_pipes) {
4075 PerlLIO_close(pp[0]);
4076 PerlLIO_close(pp[1]);
4077 }
4078 RETURN;
4079 }
4080 sleep(5);
4081 }
4082 if (childpid > 0) {
4083 Sigsave_t ihand,qhand; /* place to save signals during system() */
4084 int status;
4085
4086 if (did_pipes)
4087 PerlLIO_close(pp[1]);
64ca3a65 4088#ifndef PERL_MICRO
eb160463
GS		 4089 rsignal_save(SIGINT, SIG_IGN, &ihand);
4090 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4091#endif
eb160463
GS		 4092 do {
4093 result = wait4pid(childpid, &status, 0);
4094 } while (result == -1 && errno == EINTR);
64ca3a65 4095#ifndef PERL_MICRO
eb160463
GS		 4096 (void)rsignal_restore(SIGINT, &ihand);
4097 (void)rsignal_restore(SIGQUIT, &qhand);
4098#endif
4099 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4100 do_execfree(); /* free any memory child malloced on fork */
4101 SP = ORIGMARK;
4102 if (did_pipes) {
4103 int errkid;
4104 int n = 0, n1;
4105
4106 while (n < sizeof(int)) {
4107 n1 = PerlLIO_read(pp[0],
4108 (void*)(((char*)&errkid)+n),
4109 (sizeof(int)) - n);
4110 if (n1 <= 0)
4111 break;
4112 n += n1;
4113 }
4114 PerlLIO_close(pp[0]);
4115 if (n) { /* Error */
4116 if (n != sizeof(int))
4117 DIE(aTHX_ "panic: kid popen errno read");
4118 errno = errkid; /* Propagate errno from kid */
4119 STATUS_CURRENT = -1;
4120 }
4121 }
4122 PUSHi(STATUS_CURRENT);
4123 RETURN;
4124 }
4125 if (did_pipes) {
4126 PerlLIO_close(pp[0]);
d5a9bfb0 4127#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4128 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4129#endif
eb160463 4130 }
e0a1f643
JH		 4131 if (PL_op->op_flags & OPf_STACKED) {
4132 SV *really = *++MARK;
4133 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4134 }
4135 else if (SP - MARK != 1)
4136 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4137 else {
4138 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4139 }
4140 PerlProc__exit(-1);
d5a9bfb0 4141 }
c3293030 4142#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4143 PL_statusvalue = 0;
4144 result = 0;
911d147d 4145 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4146 SV *really = *++MARK;
18729d3e 4147# if defined(WIN32) || defined(OS2)
54725af6
GS		 4148 value = (I32)do_aspawn(really, MARK, SP);
4149# else
c5be433b 4150 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4151# endif
a0d0e21e 4152 }
54725af6 4153 else if (SP - MARK != 1) {
18729d3e 4154# if defined(WIN32) || defined(OS2)
54725af6
GS		 4155 value = (I32)do_aspawn(Nullsv, MARK, SP);
4156# else
c5be433b 4157 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4158# endif
4159 }
a0d0e21e 4160 else {
c5be433b 4161 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4162 }
922b1888
GS		 4163 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4164 result = 1;
f86702cc 4165 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4166 do_execfree();
4167 SP = ORIGMARK;
922b1888 4168 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4169#endif /* !FORK or VMS */
4170 RETURN;
4171}
4172
4173PP(pp_exec)
4174{
39644a26 4175 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4176 I32 value;
2d8e6c8d 4177 STRLEN n_a;
a0d0e21e 4178
bbd7eb8a
RD		 4179 if (PL_tainting) {
4180 TAINT_ENV();
4181 while (++MARK <= SP) {
4182 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4183 if (PL_tainted)
bbd7eb8a
RD		 4184 break;
4185 }
4186 MARK = ORIGMARK;
5b7ea690 4187 TAINT_PROPER("exec");
bbd7eb8a 4188 }
45bc9206 4189 PERL_FLUSHALL_FOR_CHILD;
533c011a 4190 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4191 SV *really = *++MARK;
4192 value = (I32)do_aexec(really, MARK, SP);
4193 }
4194 else if (SP - MARK != 1)
4195#ifdef VMS
4196 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4197#else
092bebab
JH		 4198# ifdef __OPEN_VM
4199 {
c5be433b 4200 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4201 value = 0;
4202 }
4203# else
a0d0e21e 4204 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4205# endif
a0d0e21e
LW		 4206#endif
4207 else {
a0d0e21e 4208#ifdef VMS
2d8e6c8d 4209 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4210#else
092bebab 4211# ifdef __OPEN_VM
c5be433b 4212 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4213 value = 0;
4214# else
2d8e6c8d 4215 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4216# endif
a0d0e21e
LW		 4217#endif
4218 }
146174a9 4219
a0d0e21e
LW		 4220 SP = ORIGMARK;
4221 PUSHi(value);
4222 RETURN;
4223}
4224
4225PP(pp_kill)
4226{
9cad6237 4227#ifdef HAS_KILL
39644a26 4228 dSP; dMARK; dTARGET;
a0d0e21e 4229 I32 value;
533c011a 4230 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4231 SP = MARK;
4232 PUSHi(value);
4233 RETURN;
4234#else
0322a713 4235 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4236#endif
4237}
4238
4239PP(pp_getppid)
4240{
4241#ifdef HAS_GETPPID
39644a26 4242 dSP; dTARGET;
5b7ea690
JH		 4243# ifdef THREADS_HAVE_PIDS
4244 XPUSHi( PL_ppid );
4245# else
a0d0e21e 4246 XPUSHi( getppid() );
5b7ea690 4247# endif
a0d0e21e
LW		 4248 RETURN;
4249#else
cea2e8a9 4250 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4251#endif
4252}
4253
4254PP(pp_getpgrp)
4255{
4256#ifdef HAS_GETPGRP
39644a26 4257 dSP; dTARGET;
d8a83dd3 4258 Pid_t pid;
9853a804 4259 Pid_t pgrp;
a0d0e21e
LW		 4260
4261 if (MAXARG < 1)
4262 pid = 0;
4263 else
4264 pid = SvIVx(POPs);
c3293030 4265#ifdef BSD_GETPGRP
9853a804 4266 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4267#else
146174a9 4268 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4269 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4270 pgrp = getpgrp();
a0d0e21e 4271#endif
9853a804 4272 XPUSHi(pgrp);
a0d0e21e
LW		 4273 RETURN;
4274#else
cea2e8a9 4275 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4276#endif
4277}
4278
4279PP(pp_setpgrp)
4280{
4281#ifdef HAS_SETPGRP
39644a26 4282 dSP; dTARGET;
d8a83dd3
JH		 4283 Pid_t pgrp;
4284 Pid_t pid;
a0d0e21e
LW		 4285 if (MAXARG < 2) {
4286 pgrp = 0;
4287 pid = 0;
4288 }
4289 else {
4290 pgrp = POPi;
4291 pid = TOPi;
4292 }
4293
4294 TAINT_PROPER("setpgrp");
c3293030
IZ		 4295#ifdef BSD_SETPGRP
4296 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4297#else
146174a9
CB		 4298 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4299 || (pid != 0 && pid != PerlProc_getpid()))
4300 {
4301 DIE(aTHX_ "setpgrp can't take arguments");
4302 }
a0d0e21e
LW		 4303 SETi( setpgrp() >= 0 );
4304#endif /* USE_BSDPGRP */
4305 RETURN;
4306#else
cea2e8a9 4307 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4308#endif
4309}
4310
4311PP(pp_getpriority)
4312{
a0d0e21e 4313#ifdef HAS_GETPRIORITY
9cad6237 4314 dSP; dTARGET;
d05c1ba0
JH		 4315 int who = POPi;
4316 int which = TOPi;
a0d0e21e
LW		 4317 SETi( getpriority(which, who) );
4318 RETURN;
4319#else
cea2e8a9 4320 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4321#endif
4322}
4323
4324PP(pp_setpriority)
4325{
a0d0e21e 4326#ifdef HAS_SETPRIORITY
9cad6237 4327 dSP; dTARGET;
d05c1ba0
JH		 4328 int niceval = POPi;
4329 int who = POPi;
4330 int which = TOPi;
a0d0e21e
LW		 4331 TAINT_PROPER("setpriority");
4332 SETi( setpriority(which, who, niceval) >= 0 );
4333 RETURN;
4334#else
cea2e8a9 4335 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4336#endif
4337}
4338
4339/* Time calls. */
4340
4341PP(pp_time)
4342{
39644a26 4343 dSP; dTARGET;
cbdc8872 4344#ifdef BIG_TIME
4345 XPUSHn( time(Null(Time_t*)) );
4346#else
a0d0e21e 4347 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4348#endif
a0d0e21e
LW		 4349 RETURN;
4350}
4351
a0d0e21e
LW		 4352PP(pp_tms)
4353{
9cad6237 4354#ifdef HAS_TIMES
39644a26 4355 dSP;
a0d0e21e 4356 EXTEND(SP, 4);
a0d0e21e 4357#ifndef VMS
3280af22 4358 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4359#else
6b88bc9c 4360 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4361 /* struct tms, though same data */
4362 /* is returned. */
a0d0e21e
LW		 4363#endif
4364
5b7ea690 4365 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4366 if (GIMME == G_ARRAY) {
5b7ea690
JH		 4367 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4368 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4369 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4370 }
4371 RETURN;
9cad6237
JH		 4372#else
4373 DIE(aTHX_ "times not implemented");
55497cff 4374#endif /* HAS_TIMES */
a0d0e21e
LW		 4375}
4376
4377PP(pp_localtime)
4378{
cea2e8a9 4379 return pp_gmtime();
a0d0e21e
LW		 4380}
4381
4382PP(pp_gmtime)
4383{
39644a26 4384 dSP;
a0d0e21e
LW		 4385 Time_t when;
4386 struct tm *tmbuf;
4387 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4388 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4389 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4390
4391 if (MAXARG < 1)
4392 (void)time(&when);
4393 else
cbdc8872 4394#ifdef BIG_TIME
4395 when = (Time_t)SvNVx(POPs);
4396#else
a0d0e21e 4397 when = (Time_t)SvIVx(POPs);
cbdc8872 4398#endif
a0d0e21e 4399
533c011a 4400 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4401 tmbuf = localtime(&when);
4402 else
4403 tmbuf = gmtime(&when);
4404
a0d0e21e 4405 if (GIMME != G_ARRAY) {
46fc3d4c 4406 SV *tsv;
9a5ff6d9
AB		 4407 EXTEND(SP, 1);
4408 EXTEND_MORTAL(1);
a0d0e21e
LW		 4409 if (!tmbuf)
4410 RETPUSHUNDEF;
be28567c 4411 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4412 dayname[tmbuf->tm_wday],
4413 monname[tmbuf->tm_mon],
be28567c
GS		 4414 tmbuf->tm_mday,
4415 tmbuf->tm_hour,
4416 tmbuf->tm_min,
4417 tmbuf->tm_sec,
4418 tmbuf->tm_year + 1900);
46fc3d4c 4419 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4420 }
4421 else if (tmbuf) {
9a5ff6d9
AB		 4422 EXTEND(SP, 9);
4423 EXTEND_MORTAL(9);
4424 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4425 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4426 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4427 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4428 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4429 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4430 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4431 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4432 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4433 }
4434 RETURN;
4435}
4436
4437PP(pp_alarm)
4438{
9cad6237 4439#ifdef HAS_ALARM
39644a26 4440 dSP; dTARGET;
a0d0e21e 4441 int anum;
a0d0e21e
LW		 4442 anum = POPi;
4443 anum = alarm((unsigned int)anum);
4444 EXTEND(SP, 1);
4445 if (anum < 0)
4446 RETPUSHUNDEF;
c6419e06 4447 PUSHi(anum);
a0d0e21e
LW		 4448 RETURN;
4449#else
0322a713 4450 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4451#endif
4452}
4453
4454PP(pp_sleep)
4455{
39644a26 4456 dSP; dTARGET;
a0d0e21e
LW		 4457 I32 duration;
4458 Time_t lasttime;
4459 Time_t when;
4460
4461 (void)time(&lasttime);
4462 if (MAXARG < 1)
76e3520e 4463 PerlProc_pause();
a0d0e21e
LW		 4464 else {
4465 duration = POPi;
76e3520e 4466 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4467 }
4468 (void)time(&when);
4469 XPUSHi(when - lasttime);
4470 RETURN;
4471}
4472
4473/* Shared memory. */
4474
4475PP(pp_shmget)
4476{
cea2e8a9 4477 return pp_semget();
a0d0e21e
LW		 4478}
4479
4480PP(pp_shmctl)
4481{
cea2e8a9 4482 return pp_semctl();
a0d0e21e
LW		 4483}
4484
4485PP(pp_shmread)
4486{
cea2e8a9 4487 return pp_shmwrite();
a0d0e21e
LW		 4488}
4489
4490PP(pp_shmwrite)
4491{
4492#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4493 dSP; dMARK; dTARGET;
533c011a 4494 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4495 SP = MARK;
4496 PUSHi(value);
4497 RETURN;
4498#else
cea2e8a9 4499 return pp_semget();
a0d0e21e
LW		 4500#endif
4501}
4502
4503/* Message passing. */
4504
4505PP(pp_msgget)
4506{
cea2e8a9 4507 return pp_semget();
a0d0e21e
LW		 4508}
4509
4510PP(pp_msgctl)
4511{
cea2e8a9 4512 return pp_semctl();
a0d0e21e
LW		 4513}
4514
4515PP(pp_msgsnd)
4516{
4517#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4518 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4519 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4520 SP = MARK;
4521 PUSHi(value);
4522 RETURN;
4523#else
cea2e8a9 4524 return pp_semget();
a0d0e21e
LW		 4525#endif
4526}
4527
4528PP(pp_msgrcv)
4529{
4530#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4531 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4532 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4533 SP = MARK;
4534 PUSHi(value);
4535 RETURN;
4536#else
cea2e8a9 4537 return pp_semget();
a0d0e21e
LW		 4538#endif
4539}
4540
4541/* Semaphores. */
4542
4543PP(pp_semget)
4544{
4545#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4546 dSP; dMARK; dTARGET;
533c011a 4547 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4548 SP = MARK;
4549 if (anum == -1)
4550 RETPUSHUNDEF;
4551 PUSHi(anum);
4552 RETURN;
4553#else
cea2e8a9 4554 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4555#endif
4556}
4557
4558PP(pp_semctl)
4559{
4560#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4561 dSP; dMARK; dTARGET;
533c011a 4562 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4563 SP = MARK;
4564 if (anum == -1)
4565 RETSETUNDEF;
4566 if (anum != 0) {
4567 PUSHi(anum);
4568 }
4569 else {
8903cb82 4570 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4571 }
4572 RETURN;
4573#else
cea2e8a9 4574 return pp_semget();
a0d0e21e
LW		 4575#endif
4576}
4577
4578PP(pp_semop)
4579{
4580#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4581 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4582 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4583 SP = MARK;
4584 PUSHi(value);
4585 RETURN;
4586#else
cea2e8a9 4587 return pp_semget();
a0d0e21e
LW		 4588#endif
4589}
4590
4591/* Get system info. */
4592
4593PP(pp_ghbyname)
4594{
693762b4 4595#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4596 return pp_ghostent();
a0d0e21e 4597#else
cea2e8a9 4598 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4599#endif
4600}
4601
4602PP(pp_ghbyaddr)
4603{
693762b4 4604#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4605 return pp_ghostent();
a0d0e21e 4606#else
cea2e8a9 4607 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4608#endif
4609}
4610
4611PP(pp_ghostent)
4612{
693762b4 4613#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4614 dSP;
533c011a 4615 I32 which = PL_op->op_type;
a0d0e21e
LW		 4616 register char **elem;
4617 register SV *sv;
dc45a647 4618#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4619 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4620 struct hostent *gethostbyname(Netdb_name_t);
4621 struct hostent *gethostent(void);
a0d0e21e
LW		 4622#endif
4623 struct hostent *hent;
4624 unsigned long len;
2d8e6c8d 4625 STRLEN n_a;
a0d0e21e
LW		 4626
4627 EXTEND(SP, 10);
edd309b7 4628 if (which == OP_GHBYNAME) {
dc45a647 4629#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4630 char* name = POPpbytex;
4631 hent = PerlSock_gethostbyname(name);
dc45a647 4632#else
cea2e8a9 4633 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4634#endif
edd309b7 4635 }
a0d0e21e 4636 else if (which == OP_GHBYADDR) {
dc45a647 4637#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4638 int addrtype = POPi;
748a9306 4639 SV *addrsv = POPs;
a0d0e21e 4640 STRLEN addrlen;
595ae481 4641 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4642
4599a1de 4643 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4644#else
cea2e8a9 4645 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4646#endif
a0d0e21e
LW		 4647 }
4648 else
4649#ifdef HAS_GETHOSTENT
6ad3d225 4650 hent = PerlSock_gethostent();
a0d0e21e 4651#else
cea2e8a9 4652 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4653#endif
4654
4655#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4656 if (!hent) {
4657#ifdef USE_REENTRANT_API
4658# ifdef USE_GETHOSTENT_ERRNO
4659 h_errno = PL_reentrant_buffer->_gethostent_errno;
4660# endif
4661#endif
4662 STATUS_NATIVE_SET(h_errno);
4663 }
a0d0e21e
LW		 4664#endif
4665
4666 if (GIMME != G_ARRAY) {
4667 PUSHs(sv = sv_newmortal());
4668 if (hent) {
4669 if (which == OP_GHBYNAME) {
fd0af264 4670 if (hent->h_addr)
4671 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4672 }
4673 else
4674 sv_setpv(sv, (char*)hent->h_name);
4675 }
4676 RETURN;
4677 }
4678
4679 if (hent) {
3280af22 4680 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4681 sv_setpv(sv, (char*)hent->h_name);
3280af22 4682 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4683 for (elem = hent->h_aliases; elem && *elem; elem++) {
4684 sv_catpv(sv, *elem);
4685 if (elem[1])
4686 sv_catpvn(sv, " ", 1);
4687 }
3280af22 4688 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4689 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4690 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4691 len = hent->h_length;
1e422769 4692 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4693#ifdef h_addr
4694 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4695 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4696 sv_setpvn(sv, *elem, len);
4697 }
4698#else
6b88bc9c 4699 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4700 if (hent->h_addr)
4701 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4702#endif /* h_addr */
4703 }
4704 RETURN;
4705#else
cea2e8a9 4706 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4707#endif
4708}
4709
4710PP(pp_gnbyname)
4711{
693762b4 4712#ifdef HAS_GETNETBYNAME
cea2e8a9 4713 return pp_gnetent();
a0d0e21e 4714#else
cea2e8a9 4715 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4716#endif
4717}
4718
4719PP(pp_gnbyaddr)
4720{
693762b4 4721#ifdef HAS_GETNETBYADDR
cea2e8a9 4722 return pp_gnetent();
a0d0e21e 4723#else
cea2e8a9 4724 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4725#endif
4726}
4727
4728PP(pp_gnetent)
4729{
693762b4 4730#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4731 dSP;
533c011a 4732 I32 which = PL_op->op_type;
a0d0e21e
LW		 4733 register char **elem;
4734 register SV *sv;
dc45a647 4735#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4736 struct netent *getnetbyaddr(Netdb_net_t, int);
4737 struct netent *getnetbyname(Netdb_name_t);
4738 struct netent *getnetent(void);
8ac85365 4739#endif
a0d0e21e 4740 struct netent *nent;
2d8e6c8d 4741 STRLEN n_a;
a0d0e21e 4742
edd309b7 4743 if (which == OP_GNBYNAME){
dc45a647 4744#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4745 char *name = POPpbytex;
4746 nent = PerlSock_getnetbyname(name);
dc45a647 4747#else
cea2e8a9 4748 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4749#endif
edd309b7 4750 }
a0d0e21e 4751 else if (which == OP_GNBYADDR) {
dc45a647 4752#ifdef HAS_GETNETBYADDR
a0d0e21e 4753 int addrtype = POPi;
3bb7c1b4 4754 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4755 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4756#else
cea2e8a9 4757 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4758#endif
a0d0e21e
LW		 4759 }
4760 else
dc45a647 4761#ifdef HAS_GETNETENT
76e3520e 4762 nent = PerlSock_getnetent();
dc45a647 4763#else
cea2e8a9 4764 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4765#endif
a0d0e21e 4766
10bc17b6
JH		 4767#ifdef HOST_NOT_FOUND
4768 if (!nent) {
4769#ifdef USE_REENTRANT_API
4770# ifdef USE_GETNETENT_ERRNO
4771 h_errno = PL_reentrant_buffer->_getnetent_errno;
4772# endif
4773#endif
4774 STATUS_NATIVE_SET(h_errno);
4775 }
4776#endif
4777
a0d0e21e
LW		 4778 EXTEND(SP, 4);
4779 if (GIMME != G_ARRAY) {
4780 PUSHs(sv = sv_newmortal());
4781 if (nent) {
4782 if (which == OP_GNBYNAME)
1e422769 4783 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4784 else
4785 sv_setpv(sv, nent->n_name);
4786 }
4787 RETURN;
4788 }
4789
4790 if (nent) {
3280af22 4791 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4792 sv_setpv(sv, nent->n_name);
3280af22 4793 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4794 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4795 sv_catpv(sv, *elem);
4796 if (elem[1])
4797 sv_catpvn(sv, " ", 1);
4798 }
3280af22 4799 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4800 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4801 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4802 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4803 }
4804
4805 RETURN;
4806#else
cea2e8a9 4807 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4808#endif
4809}
4810
4811PP(pp_gpbyname)
4812{
693762b4 4813#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4814 return pp_gprotoent();
a0d0e21e 4815#else
cea2e8a9 4816 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4817#endif
4818}
4819
4820PP(pp_gpbynumber)
4821{
693762b4 4822#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4823 return pp_gprotoent();
a0d0e21e 4824#else
cea2e8a9 4825 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4826#endif
4827}
4828
4829PP(pp_gprotoent)
4830{
693762b4 4831#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4832 dSP;
533c011a 4833 I32 which = PL_op->op_type;
a0d0e21e 4834 register char **elem;
301e8125 4835 register SV *sv;
dc45a647 4836#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4837 struct protoent *getprotobyname(Netdb_name_t);
4838 struct protoent *getprotobynumber(int);
4839 struct protoent *getprotoent(void);
8ac85365 4840#endif
a0d0e21e 4841 struct protoent *pent;
2d8e6c8d 4842 STRLEN n_a;
a0d0e21e 4843
edd309b7 4844 if (which == OP_GPBYNAME) {
e5c9fcd0 4845#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4846 char* name = POPpbytex;
4847 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4848#else
cea2e8a9 4849 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4850#endif
edd309b7
JH		 4851 }
4852 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4853#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4854 int number = POPi;
4855 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4856#else
edd309b7 4857 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4858#endif
edd309b7 4859 }
a0d0e21e 4860 else
e5c9fcd0 4861#ifdef HAS_GETPROTOENT
6ad3d225 4862 pent = PerlSock_getprotoent();
e5c9fcd0 4863#else
cea2e8a9 4864 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4865#endif
a0d0e21e
LW		 4866
4867 EXTEND(SP, 3);
4868 if (GIMME != G_ARRAY) {
4869 PUSHs(sv = sv_newmortal());
4870 if (pent) {
4871 if (which == OP_GPBYNAME)
1e422769 4872 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4873 else
4874 sv_setpv(sv, pent->p_name);
4875 }
4876 RETURN;
4877 }
4878
4879 if (pent) {
3280af22 4880 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4881 sv_setpv(sv, pent->p_name);
3280af22 4882 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4883 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4884 sv_catpv(sv, *elem);
4885 if (elem[1])
4886 sv_catpvn(sv, " ", 1);
4887 }
3280af22 4888 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4889 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4890 }
4891
4892 RETURN;
4893#else
cea2e8a9 4894 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4895#endif
4896}
4897
4898PP(pp_gsbyname)
4899{
9ec75305 4900#ifdef HAS_GETSERVBYNAME
cea2e8a9 4901 return pp_gservent();
a0d0e21e 4902#else
cea2e8a9 4903 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4904#endif
4905}
4906
4907PP(pp_gsbyport)
4908{
9ec75305 4909#ifdef HAS_GETSERVBYPORT
cea2e8a9 4910 return pp_gservent();
a0d0e21e 4911#else
cea2e8a9 4912 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4913#endif
4914}
4915
4916PP(pp_gservent)
4917{
693762b4 4918#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4919 dSP;
533c011a 4920 I32 which = PL_op->op_type;
a0d0e21e
LW		 4921 register char **elem;
4922 register SV *sv;
dc45a647 4923#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4924 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4925 struct servent *getservbyport(int, Netdb_name_t);
4926 struct servent *getservent(void);
8ac85365 4927#endif
a0d0e21e 4928 struct servent *sent;
2d8e6c8d 4929 STRLEN n_a;
a0d0e21e
LW		 4930
4931 if (which == OP_GSBYNAME) {
dc45a647 4932#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4933 char *proto = POPpbytex;
4934 char *name = POPpbytex;
a0d0e21e
LW		 4935
4936 if (proto && !*proto)
4937 proto = Nullch;
4938
6ad3d225 4939 sent = PerlSock_getservbyname(name, proto);
dc45a647 4940#else
cea2e8a9 4941 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4942#endif
a0d0e21e
LW		 4943 }
4944 else if (which == OP_GSBYPORT) {
dc45a647 4945#ifdef HAS_GETSERVBYPORT
42e0c139 4946 char *proto = POPpbytex;
eb160463 4947 unsigned short port = (unsigned short)POPu;
a0d0e21e 4948
bda19f49
JH		 4949 if (proto && !*proto)
4950 proto = Nullch;
4951
36477c24 4952#ifdef HAS_HTONS
6ad3d225 4953 port = PerlSock_htons(port);
36477c24 4954#endif
6ad3d225 4955 sent = PerlSock_getservbyport(port, proto);
dc45a647 4956#else
cea2e8a9 4957 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4958#endif
a0d0e21e
LW		 4959 }
4960 else
e5c9fcd0 4961#ifdef HAS_GETSERVENT
6ad3d225 4962 sent = PerlSock_getservent();
e5c9fcd0 4963#else
cea2e8a9 4964 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4965#endif
a0d0e21e
LW		 4966
4967 EXTEND(SP, 4);
4968 if (GIMME != G_ARRAY) {
4969 PUSHs(sv = sv_newmortal());
4970 if (sent) {
4971 if (which == OP_GSBYNAME) {
4972#ifdef HAS_NTOHS
6ad3d225 4973 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4974#else
1e422769 4975 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4976#endif
4977 }
4978 else
4979 sv_setpv(sv, sent->s_name);
4980 }
4981 RETURN;
4982 }
4983
4984 if (sent) {
3280af22 4985 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4986 sv_setpv(sv, sent->s_name);
3280af22 4987 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4988 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4989 sv_catpv(sv, *elem);
4990 if (elem[1])
4991 sv_catpvn(sv, " ", 1);
4992 }
3280af22 4993 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4994#ifdef HAS_NTOHS
76e3520e 4995 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4996#else
1e422769 4997 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 4998#endif
3280af22 4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5000 sv_setpv(sv, sent->s_proto);
5001 }
5002
5003 RETURN;
5004#else
cea2e8a9 5005 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5006#endif
5007}
5008
5009PP(pp_shostent)
5010{
693762b4 5011#ifdef HAS_SETHOSTENT
9cad6237 5012 dSP;
76e3520e 5013 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5014 RETSETYES;
5015#else
cea2e8a9 5016 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5017#endif
5018}
5019
5020PP(pp_snetent)
5021{
693762b4 5022#ifdef HAS_SETNETENT
9cad6237 5023 dSP;
76e3520e 5024 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5025 RETSETYES;
5026#else
cea2e8a9 5027 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5028#endif
5029}
5030
5031PP(pp_sprotoent)
5032{
693762b4 5033#ifdef HAS_SETPROTOENT
9cad6237 5034 dSP;
76e3520e 5035 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5036 RETSETYES;
5037#else
cea2e8a9 5038 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5039#endif
5040}
5041
5042PP(pp_sservent)
5043{
693762b4 5044#ifdef HAS_SETSERVENT
9cad6237 5045 dSP;
76e3520e 5046 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5047 RETSETYES;
5048#else
cea2e8a9 5049 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5050#endif
5051}
5052
5053PP(pp_ehostent)
5054{
693762b4 5055#ifdef HAS_ENDHOSTENT
9cad6237 5056 dSP;
76e3520e 5057 PerlSock_endhostent();
924508f0 5058 EXTEND(SP,1);
a0d0e21e
LW		 5059 RETPUSHYES;
5060#else
cea2e8a9 5061 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5062#endif
5063}
5064
5065PP(pp_enetent)
5066{
693762b4 5067#ifdef HAS_ENDNETENT
9cad6237 5068 dSP;
76e3520e 5069 PerlSock_endnetent();
924508f0 5070 EXTEND(SP,1);
a0d0e21e
LW		 5071 RETPUSHYES;
5072#else
cea2e8a9 5073 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5074#endif
5075}
5076
5077PP(pp_eprotoent)
5078{
693762b4 5079#ifdef HAS_ENDPROTOENT
9cad6237 5080 dSP;
76e3520e 5081 PerlSock_endprotoent();
924508f0 5082 EXTEND(SP,1);
a0d0e21e
LW		 5083 RETPUSHYES;
5084#else
cea2e8a9 5085 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5086#endif
5087}
5088
5089PP(pp_eservent)
5090{
693762b4 5091#ifdef HAS_ENDSERVENT
9cad6237 5092 dSP;
76e3520e 5093 PerlSock_endservent();
924508f0 5094 EXTEND(SP,1);
a0d0e21e
LW		 5095 RETPUSHYES;
5096#else
cea2e8a9 5097 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5098#endif
5099}
5100
5101PP(pp_gpwnam)
5102{
5103#ifdef HAS_PASSWD
cea2e8a9 5104 return pp_gpwent();
a0d0e21e 5105#else
cea2e8a9 5106 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5107#endif
5108}
5109
5110PP(pp_gpwuid)
5111{
5112#ifdef HAS_PASSWD
cea2e8a9 5113 return pp_gpwent();
a0d0e21e 5114#else
cea2e8a9 5115 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5116#endif
5117}
5118
5119PP(pp_gpwent)
5120{
0994c4d0 5121#ifdef HAS_PASSWD
9cad6237 5122 dSP;
533c011a 5123 I32 which = PL_op->op_type;
a0d0e21e 5124 register SV *sv;
2d8e6c8d 5125 STRLEN n_a;
e3aefe8d 5126 struct passwd *pwent = NULL;
301e8125 5127 /*
bcf53261
JH		 5128 * We currently support only the SysV getsp* shadow password interface.
5129 * The interface is declared in <shadow.h> and often one needs to link
5130 * with -lsecurity or some such.
5131 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5132 * (and SCO?)
5133 *
5134 * AIX getpwnam() is clever enough to return the encrypted password
5135 * only if the caller (euid?) is root.
5136 *
5137 * There are at least two other shadow password APIs. Many platforms
5138 * seem to contain more than one interface for accessing the shadow
5139 * password databases, possibly for compatibility reasons.
3813c136 5140 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5141 * are much more complicated, but also very similar to each other.
5142 *
5143 * <sys/types.h>
5144 * <sys/security.h>
5145 * <prot.h>
5146 * struct pr_passwd *getprpw*();
5147 * The password is in
3813c136
JH		 5148 * char getprpw*(...).ufld.fd_encrypt[]
5149 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5150 *
5151 * <sys/types.h>
5152 * <sys/security.h>
5153 * <prot.h>
5154 * struct es_passwd *getespw*();
5155 * The password is in
5156 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5157 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5158 *
3813c136 5159 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5160 *
5161 * In HP-UX for getprpw*() the manual page claims that one should include
5162 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5163 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5164 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5165 *
5166 * Note that <sys/security.h> is already probed for, but currently
5167 * it is only included in special cases.
301e8125 5168 *
bcf53261
JH		 5169 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5170 * be preferred interface, even though also the getprpw*() interface
5171 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5172 * One also needs to call set_auth_parameters() in main() before
5173 * doing anything else, whether one is using getespw*() or getprpw*().
5174 *
5175 * Note that accessing the shadow databases can be magnitudes
5176 * slower than accessing the standard databases.
bcf53261
JH		 5177 *
5178 * --jhi
5179 */
a0d0e21e 5180
e3aefe8d
JH		 5181 switch (which) {
5182 case OP_GPWNAM:
edd309b7
JH		 5183 {
5184 char* name = POPpbytex;
5185 pwent = getpwnam(name);
5186 }
5187 break;
e3aefe8d 5188 case OP_GPWUID:
edd309b7
JH		 5189 {
5190 Uid_t uid = POPi;
5191 pwent = getpwuid(uid);
5192 }
e3aefe8d
JH		 5193 break;
5194 case OP_GPWENT:
1883634f 5195# ifdef HAS_GETPWENT
e3aefe8d 5196 pwent = getpwent();
faea9016
IRC		 5197#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5198 if (pwent) pwent = getpwnam(pwent->pw_name);
5199#endif
1883634f 5200# else
a45d1c96 5201 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5202# endif
e3aefe8d
JH		 5203 break;
5204 }
8c0bfa08 5205
a0d0e21e
LW		 5206 EXTEND(SP, 10);
5207 if (GIMME != G_ARRAY) {
5208 PUSHs(sv = sv_newmortal());
5209 if (pwent) {
5210 if (which == OP_GPWNAM)
1883634f 5211# if Uid_t_sign <= 0
1e422769 5212 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5213# else
23dcd6c8 5214 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5215# endif
a0d0e21e
LW		 5216 else
5217 sv_setpv(sv, pwent->pw_name);
5218 }
5219 RETURN;
5220 }
5221
5222 if (pwent) {
3280af22 5223 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5224 sv_setpv(sv, pwent->pw_name);
6ee623d5 5225
3280af22 5226 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5227 SvPOK_off(sv);
5228 /* If we have getspnam(), we try to dig up the shadow
5229 * password. If we are underprivileged, the shadow
5230 * interface will set the errno to EACCES or similar,
5231 * and return a null pointer. If this happens, we will
5232 * use the dummy password (usually "*" or "x") from the
5233 * standard password database.
5234 *
5235 * In theory we could skip the shadow call completely
5236 * if euid != 0 but in practice we cannot know which
5237 * security measures are guarding the shadow databases
5238 * on a random platform.
5239 *
5240 * Resist the urge to use additional shadow interfaces.
5241 * Divert the urge to writing an extension instead.
5242 *
5243 * --jhi */
e3aefe8d 5244# ifdef HAS_GETSPNAM
3813c136
JH		 5245 {
5246 struct spwd *spwent;
5247 int saverrno; /* Save and restore errno so that
5248 * underprivileged attempts seem
5249 * to have never made the unsccessful
5250 * attempt to retrieve the shadow password. */
5251
5252 saverrno = errno;
5253 spwent = getspnam(pwent->pw_name);
5254 errno = saverrno;
5255 if (spwent && spwent->sp_pwdp)
5256 sv_setpv(sv, spwent->sp_pwdp);
5257 }
f1066039 5258# endif
e020c87d 5259# ifdef PWPASSWD
3813c136
JH		 5260 if (!SvPOK(sv)) /* Use the standard password, then. */
5261 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5262# endif
3813c136 5263
1883634f 5264# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5265 /* passwd is tainted because user himself can diddle with it.
5266 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5267 SvTAINTED_on(sv);
1883634f 5268# endif
6ee623d5 5269
3280af22 5270 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5271# if Uid_t_sign <= 0
1e422769 5272 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5273# else
23dcd6c8 5274 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5275# endif
6ee623d5 5276
3280af22 5277 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5278# if Uid_t_sign <= 0
1e422769 5279 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5280# else
23dcd6c8 5281 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5282# endif
3813c136
JH		 5283 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5284 * because of the poor interface of the Perl getpw*(),
5285 * not because there's some standard/convention saying so.
5286 * A better interface would have been to return a hash,
5287 * but we are accursed by our history, alas. --jhi. */
3280af22 5288 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5289# ifdef PWCHANGE
1e422769 5290 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5291# else
1883634f
JH		 5292# ifdef PWQUOTA
5293 sv_setiv(sv, (IV)pwent->pw_quota);
5294# else
a1757be1 5295# ifdef PWAGE
a0d0e21e 5296 sv_setpv(sv, pwent->pw_age);
a1757be1 5297# endif
6ee623d5
GS		 5298# endif
5299# endif
6ee623d5 5300
3813c136
JH		 5301 /* pw_class and pw_comment are mutually exclusive--.
5302 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5303 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5304# ifdef PWCLASS
a0d0e21e 5305 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5306# else
5307# ifdef PWCOMMENT
a0d0e21e 5308 sv_setpv(sv, pwent->pw_comment);
1883634f 5309# endif
6ee623d5 5310# endif
6ee623d5 5311
3280af22 5312 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5313# ifdef PWGECOS
a0d0e21e 5314 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5315# endif
5316# ifndef INCOMPLETE_TAINTS
d2719217 5317 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5318 SvTAINTED_on(sv);
1883634f 5319# endif
6ee623d5 5320
3280af22 5321 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5322 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5323
3280af22 5324 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5325 sv_setpv(sv, pwent->pw_shell);
1883634f 5326# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5327 /* pw_shell is tainted because user himself can diddle with it. */
5328 SvTAINTED_on(sv);
1883634f 5329# endif
6ee623d5 5330
1883634f 5331# ifdef PWEXPIRE
6b88bc9c 5332 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5333 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5334# endif
a0d0e21e
LW		 5335 }
5336 RETURN;
5337#else
cea2e8a9 5338 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5339#endif
5340}
5341
5342PP(pp_spwent)
5343{
d493b042 5344#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5345 dSP;
a0d0e21e
LW		 5346 setpwent();
5347 RETPUSHYES;
5348#else
cea2e8a9 5349 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5350#endif
5351}
5352
5353PP(pp_epwent)
5354{
28e8609d 5355#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5356 dSP;
a0d0e21e
LW		 5357 endpwent();
5358 RETPUSHYES;
5359#else
cea2e8a9 5360 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5361#endif
5362}
5363
5364PP(pp_ggrnam)
5365{
5366#ifdef HAS_GROUP
cea2e8a9 5367 return pp_ggrent();
a0d0e21e 5368#else
cea2e8a9 5369 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5370#endif
5371}
5372
5373PP(pp_ggrgid)
5374{
5375#ifdef HAS_GROUP
cea2e8a9 5376 return pp_ggrent();
a0d0e21e 5377#else
cea2e8a9 5378 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5379#endif
5380}
5381
5382PP(pp_ggrent)
5383{
0994c4d0 5384#ifdef HAS_GROUP
9cad6237 5385 dSP;
533c011a 5386 I32 which = PL_op->op_type;
a0d0e21e
LW		 5387 register char **elem;
5388 register SV *sv;
5389 struct group *grent;
2d8e6c8d 5390 STRLEN n_a;
a0d0e21e 5391
edd309b7
JH		 5392 if (which == OP_GGRNAM) {
5393 char* name = POPpbytex;
5394 grent = (struct group *)getgrnam(name);
5395 }
5396 else if (which == OP_GGRGID) {
5397 Gid_t gid = POPi;
5398 grent = (struct group *)getgrgid(gid);
5399 }
a0d0e21e 5400 else
0994c4d0 5401#ifdef HAS_GETGRENT
a0d0e21e 5402 grent = (struct group *)getgrent();
0994c4d0
JH		 5403#else
5404 DIE(aTHX_ PL_no_func, "getgrent");
5405#endif
a0d0e21e
LW		 5406
5407 EXTEND(SP, 4);
5408 if (GIMME != G_ARRAY) {
5409 PUSHs(sv = sv_newmortal());
5410 if (grent) {
5411 if (which == OP_GGRNAM)
1e422769 5412 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5413 else
5414 sv_setpv(sv, grent->gr_name);
5415 }
5416 RETURN;
5417 }
5418
5419 if (grent) {
3280af22 5420 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5421 sv_setpv(sv, grent->gr_name);
28e8609d 5422
3280af22 5423 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5424#ifdef GRPASSWD
a0d0e21e 5425 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5426#endif
5427
3280af22 5428 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5429 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5430
5b56e7c5 5431#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5433 /* In UNICOS/mk (_CRAYMPP) the multithreading
5434 * versions (getgrnam_r, getgrgid_r)
5435 * seem to return an illegal pointer
5436 * as the group members list, gr_mem.
5437 * getgrent() doesn't even have a _r version
5438 * but the gr_mem is poisonous anyway.
5439 * So yes, you cannot get the list of group
5440 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5441 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5442 sv_catpv(sv, *elem);
5443 if (elem[1])
5444 sv_catpvn(sv, " ", 1);
5445 }
3d7e8424 5446#endif
a0d0e21e
LW		 5447 }
5448
5449 RETURN;
5450#else
cea2e8a9 5451 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5452#endif
5453}
5454
5455PP(pp_sgrent)
5456{
28e8609d 5457#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5458 dSP;
a0d0e21e
LW		 5459 setgrent();
5460 RETPUSHYES;
5461#else
cea2e8a9 5462 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5463#endif
5464}
5465
5466PP(pp_egrent)
5467{
28e8609d 5468#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5469 dSP;
a0d0e21e
LW		 5470 endgrent();
5471 RETPUSHYES;
5472#else
cea2e8a9 5473 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5474#endif
5475}
5476
5477PP(pp_getlogin)
5478{
a0d0e21e 5479#ifdef HAS_GETLOGIN
9cad6237 5480 dSP; dTARGET;
a0d0e21e
LW		 5481 char *tmps;
5482 EXTEND(SP, 1);
76e3520e 5483 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5484 RETPUSHUNDEF;
5485 PUSHp(tmps, strlen(tmps));
5486 RETURN;
5487#else
cea2e8a9 5488 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5489#endif
5490}
5491
5492/* Miscellaneous. */
5493
5494PP(pp_syscall)
5495{
d2719217 5496#ifdef HAS_SYSCALL
39644a26 5497 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5498 register I32 items = SP - MARK;
5499 unsigned long a[20];
5500 register I32 i = 0;
5501 I32 retval = -1;
2d8e6c8d 5502 STRLEN n_a;
a0d0e21e 5503
3280af22 5504 if (PL_tainting) {
a0d0e21e 5505 while (++MARK <= SP) {
bbce6d69 5506 if (SvTAINTED(*MARK)) {
5507 TAINT;
5508 break;
5509 }
a0d0e21e
LW		 5510 }
5511 MARK = ORIGMARK;
5512 TAINT_PROPER("syscall");
5513 }
5514
5515 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5516 * or where sizeof(long) != sizeof(char*). But such machines will
5517 * not likely have syscall implemented either, so who cares?
5518 */
5519 while (++MARK <= SP) {
5520 if (SvNIOK(*MARK) || !i)
5521 a[i++] = SvIV(*MARK);
3280af22 5522 else if (*MARK == &PL_sv_undef)
748a9306 5523 a[i++] = 0;
301e8125 5524 else
2d8e6c8d 5525 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5526 if (i > 15)
5527 break;
5528 }
5529 switch (items) {
5530 default:
cea2e8a9 5531 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5532 case 0:
cea2e8a9 5533 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5534 case 1:
5535 retval = syscall(a[0]);
5536 break;
5537 case 2:
5538 retval = syscall(a[0],a[1]);
5539 break;
5540 case 3:
5541 retval = syscall(a[0],a[1],a[2]);
5542 break;
5543 case 4:
5544 retval = syscall(a[0],a[1],a[2],a[3]);
5545 break;
5546 case 5:
5547 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5548 break;
5549 case 6:
5550 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5551 break;
5552 case 7:
5553 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5554 break;
5555 case 8:
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5557 break;
5558#ifdef atarist
5559 case 9:
5560 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5561 break;
5562 case 10:
5563 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5564 break;
5565 case 11:
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]);
5568 break;
5569 case 12:
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]);
5572 break;
5573 case 13:
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]);
5576 break;
5577 case 14:
5578 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5579 a[10],a[11],a[12],a[13]);
5580 break;
5581#endif /* atarist */
5582 }
5583 SP = ORIGMARK;
5584 PUSHi(retval);
5585 RETURN;
5586#else
cea2e8a9 5587 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5588#endif
5589}
5590
ff68c719 5591#ifdef FCNTL_EMULATE_FLOCK
301e8125 5592
ff68c719 5593/* XXX Emulate flock() with fcntl().
5594 What's really needed is a good file locking module.
5595*/
5596
cea2e8a9
GS		 5597static int
5598fcntl_emulate_flock(int fd, int operation)
ff68c719 5599{
5600 struct flock flock;
301e8125 5601
ff68c719 5602 switch (operation & ~LOCK_NB) {
5603 case LOCK_SH:
5604 flock.l_type = F_RDLCK;
5605 break;
5606 case LOCK_EX:
5607 flock.l_type = F_WRLCK;
5608 break;
5609 case LOCK_UN:
5610 flock.l_type = F_UNLCK;
5611 break;
5612 default:
5613 errno = EINVAL;
5614 return -1;
5615 }
5616 flock.l_whence = SEEK_SET;
d9b3e12d 5617 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5618
ff68c719 5619 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5620}
5621
5622#endif /* FCNTL_EMULATE_FLOCK */
5623
5624#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5625
5626/* XXX Emulate flock() with lockf(). This is just to increase
5627 portability of scripts. The calls are not completely
5628 interchangeable. What's really needed is a good file
5629 locking module.
5630*/
5631
76c32331 5632/* The lockf() constants might have been defined in <unistd.h>.
5633 Unfortunately, <unistd.h> causes troubles on some mixed
5634 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5635
5636 Further, the lockf() constants aren't POSIX, so they might not be
5637 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5638 just stick in the SVID values and be done with it. Sigh.
5639*/
5640
5641# ifndef F_ULOCK
5642# define F_ULOCK 0 /* Unlock a previously locked region */
5643# endif
5644# ifndef F_LOCK
5645# define F_LOCK 1 /* Lock a region for exclusive use */
5646# endif
5647# ifndef F_TLOCK
5648# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5649# endif
5650# ifndef F_TEST
5651# define F_TEST 3 /* Test a region for other processes locks */
5652# endif
5653
cea2e8a9
GS		 5654static int
5655lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5656{
5657 int i;
84902520
TB		 5658 int save_errno;
5659 Off_t pos;
5660
5661 /* flock locks entire file so for lockf we need to do the same */
5662 save_errno = errno;
6ad3d225 5663 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5664 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5665 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5666 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5667 errno = save_errno;
5668
16d20bd9
AD		 5669 switch (operation) {
5670
5671 /* LOCK_SH - get a shared lock */
5672 case LOCK_SH:
5673 /* LOCK_EX - get an exclusive lock */
5674 case LOCK_EX:
5675 i = lockf (fd, F_LOCK, 0);
5676 break;
5677
5678 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5679 case LOCK_SH|LOCK_NB:
5680 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5681 case LOCK_EX|LOCK_NB:
5682 i = lockf (fd, F_TLOCK, 0);
5683 if (i == -1)
5684 if ((errno == EAGAIN) || (errno == EACCES))
5685 errno = EWOULDBLOCK;
5686 break;
5687
ff68c719 5688 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5689 case LOCK_UN:
ff68c719 5690 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5691 i = lockf (fd, F_ULOCK, 0);
5692 break;
5693
5694 /* Default - can't decipher operation */
5695 default:
5696 i = -1;
5697 errno = EINVAL;
5698 break;
5699 }
84902520
TB		 5700
5701 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5702 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5703
16d20bd9
AD		 5704 return (i);
5705}
ff68c719 5706
5707#endif /* LOCKF_EMULATE_FLOCK */
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