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[perl5.git] / pp_sys.c
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a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2
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 425 tmps = SvPV(tmpsv, len);
7b102d90 426 if ((!tmps || !len) && PL_errgv) {
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;
bf12611a 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
479b2847
GS		 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 744 (discp) ? SvPV_nolen(discp) : Nullch)) {
38af81ff
JH		 745 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
746 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
747 mode_from_discipline(discp),
748 (discp) ? SvPV_nolen(discp) : Nullch)) {
749 SPAGAIN;
750 RETPUSHUNDEF;
751 }
752 }
40d98b49 753 SPAGAIN;
a0d0e21e 754 RETPUSHYES;
40d98b49
JH		 755 }
756 else {
757 SPAGAIN;
a0d0e21e 758 RETPUSHUNDEF;
40d98b49 759 }
a0d0e21e
LW		 760}
761
762PP(pp_tie)
763{
39644a26 764 dSP;
e336de0d 765 dMARK;
a0d0e21e
LW		 766 SV *varsv;
767 HV* stash;
768 GV *gv;
a0d0e21e 769 SV *sv;
3280af22 770 I32 markoff = MARK - PL_stack_base;
a0d0e21e 771 char *methname;
14befaf4 772 int how = PERL_MAGIC_tied;
e336de0d 773 U32 items;
a0d0e21e 774
e336de0d 775 varsv = *++MARK;
6b05c17a
NIS		 776 switch(SvTYPE(varsv)) {
777 case SVt_PVHV:
778 methname = "TIEHASH";
03c6e78a 779 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 780 break;
781 case SVt_PVAV:
782 methname = "TIEARRAY";
783 break;
784 case SVt_PVGV:
7fb37951
AMS		 785#ifdef GV_UNIQUE_CHECK
786 if (GvUNIQUE((GV*)varsv)) {
787 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 788 }
789#endif
6b05c17a 790 methname = "TIEHANDLE";
14befaf4 791 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 792 /* For tied filehandles, we apply tiedscalar magic to the IO
793 slot of the GP rather than the GV itself. AMS 20010812 */
794 if (!GvIOp(varsv))
795 GvIOp(varsv) = newIO();
796 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 797 break;
798 default:
799 methname = "TIESCALAR";
14befaf4 800 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 801 break;
802 }
e336de0d
GS		 803 items = SP - MARK++;
804 if (sv_isobject(*MARK)) {
6b05c17a 805 ENTER;
e788e7d3 806 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 807 PUSHMARK(SP);
eb160463 808 EXTEND(SP,(I32)items);
e336de0d
GS		 809 while (items--)
810 PUSHs(*MARK++);
811 PUTBACK;
864dbfa3 812 call_method(methname, G_SCALAR);
301e8125 813 }
6b05c17a 814 else {
864dbfa3 815 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 816 * perhaps to get different error message ?
817 */
e336de0d 818 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 819 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 820 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
821 methname, *MARK);
6b05c17a
NIS		 822 }
823 ENTER;
e788e7d3 824 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 825 PUSHMARK(SP);
eb160463 826 EXTEND(SP,(I32)items);
e336de0d
GS		 827 while (items--)
828 PUSHs(*MARK++);
829 PUTBACK;
864dbfa3 830 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 831 }
a0d0e21e
LW		 832 SPAGAIN;
833
834 sv = TOPs;
d3acc0f7 835 POPSTACK;
a0d0e21e 836 if (sv_isobject(sv)) {
33c27489 837 sv_unmagic(varsv, how);
ae21d580 838 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 839 if (varsv == SvRV(sv) &&
d87ebaca
YST		 840 (SvTYPE(varsv) == SVt_PVAV ||
841 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 842 Perl_croak(aTHX_
843 "Self-ties of arrays and hashes are not supported");
d87ebaca 844 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 845 }
846 LEAVE;
3280af22 847 SP = PL_stack_base + markoff;
a0d0e21e
LW		 848 PUSHs(sv);
849 RETURN;
850}
851
852PP(pp_untie)
853{
39644a26 854 dSP;
5b468f54 855 MAGIC *mg;
33c27489 856 SV *sv = POPs;
14befaf4
DM		 857 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
858 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 859
5b468f54
AMS		 860 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
861 RETPUSHYES;
862
863 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 864 SV *obj = SvRV(mg->mg_obj);
865 GV *gv;
866 CV *cv = NULL;
fa2b88e0
JS		 867 if (obj) {
868 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
869 isGV(gv) && (cv = GvCV(gv))) {
870 PUSHMARK(SP);
871 XPUSHs(SvTIED_obj((SV*)gv, mg));
872 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
873 PUTBACK;
874 ENTER;
875 call_sv((SV *)cv, G_VOID);
876 LEAVE;
877 SPAGAIN;
878 }
879 else if (ckWARN(WARN_UNTIE)) {
880 if (mg && SvREFCNT(obj) > 1)
9014280d 881 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 882 "untie attempted while %"UVuf" inner references still exist",
883 (UV)SvREFCNT(obj) - 1 ) ;
884 }
cbdc8872 885 }
886 }
38193a09 887 sv_unmagic(sv, how) ;
55497cff 888 RETPUSHYES;
a0d0e21e
LW		 889}
890
c07a80fd 891PP(pp_tied)
892{
39644a26 893 dSP;
5b468f54 894 MAGIC *mg;
33c27489 895 SV *sv = POPs;
14befaf4
DM		 896 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
897 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 898
899 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
900 RETPUSHUNDEF;
c07a80fd 901
155aba94 902 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 903 SV *osv = SvTIED_obj(sv, mg);
904 if (osv == mg->mg_obj)
905 osv = sv_mortalcopy(osv);
906 PUSHs(osv);
907 RETURN;
c07a80fd 908 }
c07a80fd 909 RETPUSHUNDEF;
910}
911
a0d0e21e
LW		 912PP(pp_dbmopen)
913{
39644a26 914 dSP;
a0d0e21e
LW		 915 HV *hv;
916 dPOPPOPssrl;
917 HV* stash;
918 GV *gv;
a0d0e21e
LW		 919 SV *sv;
920
921 hv = (HV*)POPs;
922
3280af22 923 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 924 sv_setpv(sv, "AnyDBM_File");
925 stash = gv_stashsv(sv, FALSE);
8ebc5c01 926 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 927 PUTBACK;
864dbfa3 928 require_pv("AnyDBM_File.pm");
a0d0e21e 929 SPAGAIN;
8ebc5c01 930 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 931 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 932 }
933
57d3b86d 934 ENTER;
924508f0 935 PUSHMARK(SP);
6b05c17a 936
924508f0 937 EXTEND(SP, 5);
a0d0e21e
LW		 938 PUSHs(sv);
939 PUSHs(left);
940 if (SvIV(right))
b448e4fe 941 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 942 else
b448e4fe 943 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 944 PUSHs(right);
57d3b86d 945 PUTBACK;
864dbfa3 946 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 947 SPAGAIN;
948
949 if (!sv_isobject(TOPs)) {
924508f0
GS		 950 SP--;
951 PUSHMARK(SP);
a0d0e21e
LW		 952 PUSHs(sv);
953 PUSHs(left);
b448e4fe 954 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 955 PUSHs(right);
a0d0e21e 956 PUTBACK;
864dbfa3 957 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 958 SPAGAIN;
959 }
960
6b05c17a 961 if (sv_isobject(TOPs)) {
14befaf4
DM		 962 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
963 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 964 }
a0d0e21e
LW		 965 LEAVE;
966 RETURN;
967}
968
969PP(pp_dbmclose)
970{
cea2e8a9 971 return pp_untie();
a0d0e21e
LW		 972}
973
974PP(pp_sselect)
975{
a0d0e21e 976#ifdef HAS_SELECT
9cad6237 977 dSP; dTARGET;
a0d0e21e
LW		 978 register I32 i;
979 register I32 j;
980 register char *s;
981 register SV *sv;
65202027 982 NV value;
a0d0e21e
LW		 983 I32 maxlen = 0;
984 I32 nfound;
985 struct timeval timebuf;
986 struct timeval *tbuf = &timebuf;
987 I32 growsize;
988 char *fd_sets[4];
2d8e6c8d 989 STRLEN n_a;
a0d0e21e
LW		 990#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
991 I32 masksize;
992 I32 offset;
993 I32 k;
994
995# if BYTEORDER & 0xf0000
996# define ORDERBYTE (0x88888888 - BYTEORDER)
997# else
998# define ORDERBYTE (0x4444 - BYTEORDER)
999# endif
1000
1001#endif
1002
1003 SP -= 4;
1004 for (i = 1; i <= 3; i++) {
1005 if (!SvPOK(SP[i]))
1006 continue;
1007 j = SvCUR(SP[i]);
1008 if (maxlen < j)
1009 maxlen = j;
1010 }
1011
5ff3f7a4 1012/* little endians can use vecs directly */
e366b469 1013#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1014# ifdef NFDBITS
a0d0e21e 1015
5ff3f7a4
GS		 1016# ifndef NBBY
1017# define NBBY 8
1018# endif
a0d0e21e
LW		 1019
1020 masksize = NFDBITS / NBBY;
5ff3f7a4 1021# else
a0d0e21e 1022 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1023# endif
a0d0e21e
LW		 1024 Zero(&fd_sets[0], 4, char*);
1025#endif
1026
e366b469
PG		 1027# if SELECT_MIN_BITS > 1
1028 /* If SELECT_MIN_BITS is greater than one we most probably will want
1029 * to align the sizes with SELECT_MIN_BITS/8 because for example
1030 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1031 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1032 * on (sets/tests/clears bits) is 32 bits. */
1033 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1034# else
1035 growsize = sizeof(fd_set);
1036# endif
1037
a0d0e21e
LW		 1038 sv = SP[4];
1039 if (SvOK(sv)) {
1040 value = SvNV(sv);
1041 if (value < 0.0)
1042 value = 0.0;
1043 timebuf.tv_sec = (long)value;
65202027 1044 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1045 timebuf.tv_usec = (long)(value * 1000000.0);
1046 }
1047 else
1048 tbuf = Null(struct timeval*);
1049
1050 for (i = 1; i <= 3; i++) {
1051 sv = SP[i];
1052 if (!SvOK(sv)) {
1053 fd_sets[i] = 0;
1054 continue;
1055 }
1056 else if (!SvPOK(sv))
2d8e6c8d 1057 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1058 j = SvLEN(sv);
1059 if (j < growsize) {
1060 Sv_Grow(sv, growsize);
a0d0e21e 1061 }
c07a80fd 1062 j = SvCUR(sv);
1063 s = SvPVX(sv) + j;
1064 while (++j <= growsize) {
1065 *s++ = '\0';
1066 }
1067
a0d0e21e
LW		 1068#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1069 s = SvPVX(sv);
1070 New(403, fd_sets[i], growsize, char);
1071 for (offset = 0; offset < growsize; offset += masksize) {
1072 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1073 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1074 }
1075#else
1076 fd_sets[i] = SvPVX(sv);
1077#endif
1078 }
1079
dc4c69d9
JH		 1080#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1081 /* Can't make just the (void*) conditional because that would be
1082 * cpp #if within cpp macro, and not all compilers like that. */
1083 nfound = PerlSock_select(
1084 maxlen * 8,
1085 (Select_fd_set_t) fd_sets[1],
1086 (Select_fd_set_t) fd_sets[2],
1087 (Select_fd_set_t) fd_sets[3],
1088 (void*) tbuf); /* Workaround for compiler bug. */
1089#else
6ad3d225 1090 nfound = PerlSock_select(
a0d0e21e
LW		 1091 maxlen * 8,
1092 (Select_fd_set_t) fd_sets[1],
1093 (Select_fd_set_t) fd_sets[2],
1094 (Select_fd_set_t) fd_sets[3],
1095 tbuf);
dc4c69d9 1096#endif
a0d0e21e
LW		 1097 for (i = 1; i <= 3; i++) {
1098 if (fd_sets[i]) {
1099 sv = SP[i];
1100#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1101 s = SvPVX(sv);
1102 for (offset = 0; offset < growsize; offset += masksize) {
1103 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1104 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1105 }
1106 Safefree(fd_sets[i]);
1107#endif
1108 SvSETMAGIC(sv);
1109 }
1110 }
1111
1112 PUSHi(nfound);
1113 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1114 value = (NV)(timebuf.tv_sec) +
1115 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1117 sv_setnv(sv, value);
1118 }
1119 RETURN;
1120#else
cea2e8a9 1121 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1122#endif
1123}
1124
4633a7c4 1125void
864dbfa3 1126Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1127{
1128 if (gv)
1129 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1130 if (PL_defoutgv)
1131 SvREFCNT_dec(PL_defoutgv);
1132 PL_defoutgv = gv;
4633a7c4
LW		 1133}
1134
a0d0e21e
LW		 1135PP(pp_select)
1136{
39644a26 1137 dSP; dTARGET;
4633a7c4
LW		 1138 GV *newdefout, *egv;
1139 HV *hv;
1140
533c011a 1141 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1142
3280af22 1143 egv = GvEGV(PL_defoutgv);
4633a7c4 1144 if (!egv)
3280af22 1145 egv = PL_defoutgv;
4633a7c4
LW		 1146 hv = GvSTASH(egv);
1147 if (! hv)
3280af22 1148 XPUSHs(&PL_sv_undef);
4633a7c4 1149 else {
cbdc8872 1150 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1151 if (gvp && *gvp == egv) {
f7aaccc2 1152 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1153 XPUSHTARG;
1154 }
1155 else {
1156 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1157 }
4633a7c4
LW		 1158 }
1159
1160 if (newdefout) {
ded8aa31
GS		 1161 if (!GvIO(newdefout))
1162 gv_IOadd(newdefout);
4633a7c4
LW		 1163 setdefout(newdefout);
1164 }
1165
a0d0e21e
LW		 1166 RETURN;
1167}
1168
1169PP(pp_getc)
1170{
39644a26 1171 dSP; dTARGET;
a0d0e21e 1172 GV *gv;
90133b69 1173 IO *io = NULL;
2ae324a7 1174 MAGIC *mg;
a0d0e21e 1175
32da55ab 1176 if (MAXARG == 0)
3280af22 1177 gv = PL_stdingv;
a0d0e21e
LW		 1178 else
1179 gv = (GV*)POPs;
2ae324a7 1180
5b468f54
AMS		 1181 if (gv && (io = GvIO(gv))
1182 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1183 {
54310121 1184 I32 gimme = GIMME_V;
2ae324a7 1185 PUSHMARK(SP);
5b468f54 1186 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1187 PUTBACK;
1188 ENTER;
864dbfa3 1189 call_method("GETC", gimme);
2ae324a7 1190 LEAVE;
1191 SPAGAIN;
54310121 1192 if (gimme == G_SCALAR)
1193 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1194 RETURN;
1195 }
90133b69 1196 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1197 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1198 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1199 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1200 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1201 RETPUSHUNDEF;
90133b69 1202 }
bbce6d69 1203 TAINT;
a0d0e21e 1204 sv_setpv(TARG, " ");
9bc64814 1205 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1206 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1207 /* Find out how many bytes the char needs */
1208 Size_t len = UTF8SKIP(SvPVX(TARG));
1209 if (len > 1) {
1210 SvGROW(TARG,len+1);
1211 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1212 SvCUR_set(TARG,1+len);
1213 }
1214 SvUTF8_on(TARG);
1215 }
a0d0e21e
LW		 1216 PUSHTARG;
1217 RETURN;
1218}
1219
1220PP(pp_read)
1221{
cea2e8a9 1222 return pp_sysread();
a0d0e21e
LW		 1223}
1224
76e3520e 1225STATIC OP *
cea2e8a9 1226S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1227{
c09156bb 1228 register PERL_CONTEXT *cx;
54310121 1229 I32 gimme = GIMME_V;
a0d0e21e
LW		 1230
1231 ENTER;
1232 SAVETMPS;
1233
1234 push_return(retop);
146174a9 1235 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1236 PUSHFORMAT(cx);
dd2155a4 1237 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1238
4633a7c4 1239 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1240 return CvSTART(cv);
1241}
1242
1243PP(pp_enterwrite)
1244{
39644a26 1245 dSP;
a0d0e21e
LW		 1246 register GV *gv;
1247 register IO *io;
1248 GV *fgv;
1249 CV *cv;
1250
1251 if (MAXARG == 0)
3280af22 1252 gv = PL_defoutgv;
a0d0e21e
LW		 1253 else {
1254 gv = (GV*)POPs;
1255 if (!gv)
3280af22 1256 gv = PL_defoutgv;
a0d0e21e
LW		 1257 }
1258 EXTEND(SP, 1);
1259 io = GvIO(gv);
1260 if (!io) {
1261 RETPUSHNO;
1262 }
1263 if (IoFMT_GV(io))
1264 fgv = IoFMT_GV(io);
1265 else
1266 fgv = gv;
1267
1268 cv = GvFORM(fgv);
a0d0e21e 1269 if (!cv) {
2dd78f96 1270 char *name = NULL;
a0d0e21e 1271 if (fgv) {
748a9306 1272 SV *tmpsv = sv_newmortal();
43693395 1273 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1274 name = SvPV_nolen(tmpsv);
a0d0e21e 1275 }
2dd78f96
JH		 1276 if (name && *name)
1277 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1278 DIE(aTHX_ "Not a format reference");
a0d0e21e 1279 }
44a8e56a 1280 if (CvCLONE(cv))
1281 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1282
44a8e56a 1283 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1284 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1285}
1286
1287PP(pp_leavewrite)
1288{
39644a26 1289 dSP;
a0d0e21e
LW		 1290 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1291 register IO *io = GvIOp(gv);
760ac839
LW		 1292 PerlIO *ofp = IoOFP(io);
1293 PerlIO *fp;
a0d0e21e
LW		 1294 SV **newsp;
1295 I32 gimme;
c09156bb 1296 register PERL_CONTEXT *cx;
a0d0e21e 1297
760ac839 1298 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1299 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1300 if (!io || !ofp)
1301 goto forget_top;
3280af22
NIS		 1302 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1303 PL_formtarget != PL_toptarget)
a0d0e21e 1304 {
4633a7c4
LW		 1305 GV *fgv;
1306 CV *cv;
a0d0e21e
LW		 1307 if (!IoTOP_GV(io)) {
1308 GV *topgv;
46fc3d4c 1309 SV *topname;
a0d0e21e
LW		 1310
1311 if (!IoTOP_NAME(io)) {
1312 if (!IoFMT_NAME(io))
1313 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1314 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1315 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1316 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1317 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1318 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1319 else
1320 IoTOP_NAME(io) = savepv("top");
1321 }
1322 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1323 if (!topgv || !GvFORM(topgv)) {
1324 IoLINES_LEFT(io) = 100000000;
1325 goto forget_top;
1326 }
1327 IoTOP_GV(io) = topgv;
1328 }
748a9306
LW		 1329 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1330 I32 lines = IoLINES_LEFT(io);
3280af22 1331 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1332 if (lines <= 0) /* Yow, header didn't even fit!!! */
1333 goto forget_top;
748a9306
LW		 1334 while (lines-- > 0) {
1335 s = strchr(s, '\n');
1336 if (!s)
1337 break;
1338 s++;
1339 }
1340 if (s) {
d75029d0
NIS		 1341 STRLEN save = SvCUR(PL_formtarget);
1342 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1343 do_print(PL_formtarget, ofp);
1344 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1345 sv_chop(PL_formtarget, s);
1346 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1347 }
1348 }
a0d0e21e 1349 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1350 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1351 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1352 IoPAGE(io)++;
3280af22 1353 PL_formtarget = PL_toptarget;
748a9306 1354 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1355 fgv = IoTOP_GV(io);
1356 if (!fgv)
cea2e8a9 1357 DIE(aTHX_ "bad top format reference");
4633a7c4 1358 cv = GvFORM(fgv);
2dd78f96
JH		 1359 {
1360 char *name = NULL;
1361 if (!cv) {
1362 SV *sv = sv_newmortal();
1363 gv_efullname4(sv, fgv, Nullch, FALSE);
1364 name = SvPV_nolen(sv);
1365 }
1366 if (name && *name)
1367 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1368 /* why no:
1369 else
1370 DIE(aTHX_ "Undefined top format called");
1371 ?*/
4633a7c4 1372 }
44a8e56a 1373 if (CvCLONE(cv))
1374 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1375 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1376 }
1377
1378 forget_top:
3280af22 1379 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1380 POPFORMAT(cx);
1381 LEAVE;
1382
1383 fp = IoOFP(io);
1384 if (!fp) {
599cee73 1385 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1386 if (IoIFP(io))
1387 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1388 else if (ckWARN(WARN_CLOSED))
bc37a18f 1389 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1390 }
3280af22 1391 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1392 }
1393 else {
3280af22 1394 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1395 if (ckWARN(WARN_IO))
9014280d 1396 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1397 }
d75029d0 1398 if (!do_print(PL_formtarget, fp))
3280af22 1399 PUSHs(&PL_sv_no);
a0d0e21e 1400 else {
3280af22
NIS		 1401 FmLINES(PL_formtarget) = 0;
1402 SvCUR_set(PL_formtarget, 0);
1403 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1404 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1405 (void)PerlIO_flush(fp);
3280af22 1406 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1407 }
1408 }
9cbac4c7 1409 /* bad_ofp: */
3280af22 1410 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1411 PUTBACK;
1412 return pop_return();
1413}
1414
1415PP(pp_prtf)
1416{
39644a26 1417 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1418 GV *gv;
1419 IO *io;
760ac839 1420 PerlIO *fp;
26db47c4 1421 SV *sv;
46fc3d4c 1422 MAGIC *mg;
a0d0e21e 1423
533c011a 1424 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1425 gv = (GV*)*++MARK;
1426 else
3280af22 1427 gv = PL_defoutgv;
46fc3d4c 1428
5b468f54
AMS		 1429 if (gv && (io = GvIO(gv))
1430 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1431 {
46fc3d4c 1432 if (MARK == ORIGMARK) {
4352c267 1433 MEXTEND(SP, 1);
46fc3d4c 1434 ++MARK;
1435 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1436 ++SP;
1437 }
1438 PUSHMARK(MARK - 1);
5b468f54 1439 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1440 PUTBACK;
1441 ENTER;
864dbfa3 1442 call_method("PRINTF", G_SCALAR);
46fc3d4c 1443 LEAVE;
1444 SPAGAIN;
1445 MARK = ORIGMARK + 1;
1446 *MARK = *SP;
1447 SP = MARK;
1448 RETURN;
1449 }
1450
26db47c4 1451 sv = NEWSV(0,0);
a0d0e21e 1452 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1453 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1454 report_evil_fh(gv, io, PL_op->op_type);
93189314 1455 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1456 goto just_say_no;
1457 }
1458 else if (!(fp = IoOFP(io))) {
599cee73 1459 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1460 if (IoIFP(io))
1461 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1462 else if (ckWARN(WARN_CLOSED))
bc37a18f 1463 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1464 }
93189314 1465 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1466 goto just_say_no;
1467 }
1468 else {
1469 do_sprintf(sv, SP - MARK, MARK + 1);
1470 if (!do_print(sv, fp))
1471 goto just_say_no;
1472
1473 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1474 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1475 goto just_say_no;
1476 }
1477 SvREFCNT_dec(sv);
1478 SP = ORIGMARK;
3280af22 1479 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1480 RETURN;
1481
1482 just_say_no:
1483 SvREFCNT_dec(sv);
1484 SP = ORIGMARK;
3280af22 1485 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1486 RETURN;
1487}
1488
c07a80fd 1489PP(pp_sysopen)
1490{
39644a26 1491 dSP;
c07a80fd 1492 GV *gv;
c07a80fd 1493 SV *sv;
1494 char *tmps;
1495 STRLEN len;
1496 int mode, perm;
1497
1498 if (MAXARG > 3)
1499 perm = POPi;
1500 else
1501 perm = 0666;
1502 mode = POPi;
1503 sv = POPs;
1504 gv = (GV *)POPs;
1505
4592e6ca
NIS		 1506 /* Need TIEHANDLE method ? */
1507
c07a80fd 1508 tmps = SvPV(sv, len);
1509 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1510 IoLINES(GvIOp(gv)) = 0;
3280af22 1511 PUSHs(&PL_sv_yes);
c07a80fd 1512 }
1513 else {
3280af22 1514 PUSHs(&PL_sv_undef);
c07a80fd 1515 }
1516 RETURN;
1517}
1518
a0d0e21e
LW		 1519PP(pp_sysread)
1520{
39644a26 1521 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1522 int offset;
1523 GV *gv;
1524 IO *io;
1525 char *buffer;
5b54f415 1526 SSize_t length;
eb5c063a 1527 SSize_t count;
1e422769 1528 Sock_size_t bufsize;
748a9306 1529 SV *bufsv;
a0d0e21e 1530 STRLEN blen;
2ae324a7 1531 MAGIC *mg;
eb5c063a
NIS		 1532 int fp_utf8;
1533 Size_t got = 0;
1534 Size_t wanted;
1d636c13 1535 bool charstart = FALSE;
87330c3c
JH		 1536 STRLEN charskip = 0;
1537 STRLEN skip = 0;
a0d0e21e
LW		 1538
1539 gv = (GV*)*++MARK;
5b468f54
AMS		 1540 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1541 && gv && (io = GvIO(gv))
1542 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1543 {
2ae324a7 1544 SV *sv;
1545
1546 PUSHMARK(MARK-1);
5b468f54 1547 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1548 ENTER;
864dbfa3 1549 call_method("READ", G_SCALAR);
2ae324a7 1550 LEAVE;
1551 SPAGAIN;
1552 sv = POPs;
1553 SP = ORIGMARK;
1554 PUSHs(sv);
1555 RETURN;
1556 }
1557
a0d0e21e
LW		 1558 if (!gv)
1559 goto say_undef;
748a9306 1560 bufsv = *++MARK;
ff68c719 1561 if (! SvOK(bufsv))
1562 sv_setpvn(bufsv, "", 0);
a0d0e21e 1563 length = SvIVx(*++MARK);
748a9306 1564 SETERRNO(0,0);
a0d0e21e
LW		 1565 if (MARK < SP)
1566 offset = SvIVx(*++MARK);
1567 else
1568 offset = 0;
1569 io = GvIO(gv);
b5fe5ca2
SR		 1570 if (!io || !IoIFP(io)) {
1571 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1572 report_evil_fh(gv, io, PL_op->op_type);
1573 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1574 goto say_undef;
b5fe5ca2 1575 }
0064a8a9 1576 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1577 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1578 /* UTF8 may not have been set if they are all low bytes */
1579 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1580 }
1581 else {
1582 buffer = SvPV_force(bufsv, blen);
1583 }
1584 if (length < 0)
1585 DIE(aTHX_ "Negative length");
eb5c063a 1586 wanted = length;
7d59b7e4 1587
d0965105
JH		 1588 charstart = TRUE;
1589 charskip = 0;
87330c3c 1590 skip = 0;
d0965105 1591
a0d0e21e 1592#ifdef HAS_SOCKET
533c011a 1593 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1594 char namebuf[MAXPATHLEN];
17a8c7ba 1595#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1596 bufsize = sizeof (struct sockaddr_in);
1597#else
46fc3d4c 1598 bufsize = sizeof namebuf;
490ab354 1599#endif
abf95952
IZ		 1600#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1601 if (bufsize >= 256)
1602 bufsize = 255;
1603#endif
eb160463 1604 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1605 /* 'offset' means 'flags' here */
eb5c063a 1606 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1607 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1608 if (count < 0)
a0d0e21e 1609 RETPUSHUNDEF;
4107cc59
OF		 1610#ifdef EPOC
1611 /* Bogus return without padding */
1612 bufsize = sizeof (struct sockaddr_in);
1613#endif
eb5c063a 1614 SvCUR_set(bufsv, count);
748a9306
LW		 1615 *SvEND(bufsv) = '\0';
1616 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1617 if (fp_utf8)
1618 SvUTF8_on(bufsv);
748a9306 1619 SvSETMAGIC(bufsv);
aac0dd9a 1620 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1621 if (!(IoFLAGS(io) & IOf_UNTAINT))
1622 SvTAINTED_on(bufsv);
a0d0e21e 1623 SP = ORIGMARK;
46fc3d4c 1624 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1625 PUSHs(TARG);
1626 RETURN;
1627 }
1628#else
911d147d 1629 if (PL_op->op_type == OP_RECV)
cea2e8a9 1630 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1631#endif
eb5c063a
NIS		 1632 if (DO_UTF8(bufsv)) {
1633 /* offset adjust in characters not bytes */
1634 blen = sv_len_utf8(bufsv);
7d59b7e4 1635 }
bbce6d69 1636 if (offset < 0) {
eb160463 1637 if (-offset > (int)blen)
cea2e8a9 1638 DIE(aTHX_ "Offset outside string");
bbce6d69 1639 offset += blen;
1640 }
eb5c063a
NIS		 1641 if (DO_UTF8(bufsv)) {
1642 /* convert offset-as-chars to offset-as-bytes */
1643 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1644 }
1645 more_bytes:
cd52b7b2 1646 bufsize = SvCUR(bufsv);
eb160463 1647 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1648 if (offset > bufsize) { /* Zero any newly allocated space */
1649 Zero(buffer+bufsize, offset-bufsize, char);
1650 }
eb5c063a
NIS		 1651 buffer = buffer + offset;
1652
533c011a 1653 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1654#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1655 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1656 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1657 buffer, length, 0);
a7092146
GS		 1658 }
1659 else
1660#endif
1661 {
eb5c063a
NIS		 1662 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1663 buffer, length);
a7092146 1664 }
a0d0e21e
LW		 1665 }
1666 else
1667#ifdef HAS_SOCKET__bad_code_maybe
50952442 1668 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1669 char namebuf[MAXPATHLEN];
490ab354
JH		 1670#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1671 bufsize = sizeof (struct sockaddr_in);
1672#else
46fc3d4c 1673 bufsize = sizeof namebuf;
490ab354 1674#endif
eb5c063a 1675 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1676 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1677 }
1678 else
1679#endif
3b02c43c 1680 {
eb5c063a
NIS		 1681 count = PerlIO_read(IoIFP(io), buffer, length);
1682 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1683 if (count == 0 && PerlIO_error(IoIFP(io)))
1684 count = -1;
3b02c43c 1685 }
eb5c063a 1686 if (count < 0) {
a00b5bd3 1687 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1688 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1689 goto say_undef;
af8c498a 1690 }
eb5c063a 1691 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1692 *SvEND(bufsv) = '\0';
1693 (void)SvPOK_only(bufsv);
0064a8a9 1694 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1695 /* Look at utf8 we got back and count the characters */
1696 char *bend = buffer + count;
1697 while (buffer < bend) {
d0965105
JH		 1698 if (charstart) {
1699 skip = UTF8SKIP(buffer);
1700 charskip = 0;
1701 }
1702 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1703 /* partial character - try for rest of it */
1704 length = skip - (bend-buffer);
1705 offset = bend - SvPVX(bufsv);
d0965105
JH		 1706 charstart = FALSE;
1707 charskip += count;
eb5c063a
NIS		 1708 goto more_bytes;
1709 }
1710 else {
1711 got++;
1712 buffer += skip;
d0965105
JH		 1713 charstart = TRUE;
1714 charskip = 0;
eb5c063a
NIS		 1715 }
1716 }
1717 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1718 provided amount read (count) was what was requested (length)
1719 */
1720 if (got < wanted && count == length) {
d0965105 1721 length = wanted - got;
eb5c063a
NIS		 1722 offset = bend - SvPVX(bufsv);
1723 goto more_bytes;
1724 }
1725 /* return value is character count */
1726 count = got;
1727 SvUTF8_on(bufsv);
1728 }
748a9306 1729 SvSETMAGIC(bufsv);
aac0dd9a 1730 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1731 if (!(IoFLAGS(io) & IOf_UNTAINT))
1732 SvTAINTED_on(bufsv);
a0d0e21e 1733 SP = ORIGMARK;
eb5c063a 1734 PUSHi(count);
a0d0e21e
LW		 1735 RETURN;
1736
1737 say_undef:
1738 SP = ORIGMARK;
1739 RETPUSHUNDEF;
1740}
1741
1742PP(pp_syswrite)
1743{
39644a26 1744 dSP;
092bebab
JH		 1745 int items = (SP - PL_stack_base) - TOPMARK;
1746 if (items == 2) {
9f089d78 1747 SV *sv;
092bebab 1748 EXTEND(SP, 1);
9f089d78
SB		 1749 sv = sv_2mortal(newSViv(sv_len(*SP)));
1750 PUSHs(sv);
092bebab
JH		 1751 PUTBACK;
1752 }
cea2e8a9 1753 return pp_send();
a0d0e21e
LW		 1754}
1755
1756PP(pp_send)
1757{
39644a26 1758 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1759 GV *gv;
1760 IO *io;
748a9306 1761 SV *bufsv;
a0d0e21e 1762 char *buffer;
8c99d73e
GS		 1763 Size_t length;
1764 SSize_t retval;
a0d0e21e 1765 STRLEN blen;
1d603a67 1766 MAGIC *mg;
a0d0e21e
LW		 1767
1768 gv = (GV*)*++MARK;
14befaf4 1769 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1770 && gv && (io = GvIO(gv))
1771 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1772 {
1d603a67
GB		 1773 SV *sv;
1774
1775 PUSHMARK(MARK-1);
5b468f54 1776 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1777 ENTER;
864dbfa3 1778 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1779 LEAVE;
1780 SPAGAIN;
1781 sv = POPs;
1782 SP = ORIGMARK;
1783 PUSHs(sv);
1784 RETURN;
1785 }
a0d0e21e
LW		 1786 if (!gv)
1787 goto say_undef;
748a9306 1788 bufsv = *++MARK;
8c99d73e 1789#if Size_t_size > IVSIZE
3c001241 1790 length = (Size_t)SvNVx(*++MARK);
146174a9 1791#else
3c001241 1792 length = (Size_t)SvIVx(*++MARK);
146174a9 1793#endif
3c001241 1794 if ((SSize_t)length < 0)
cea2e8a9 1795 DIE(aTHX_ "Negative length");
748a9306 1796 SETERRNO(0,0);
a0d0e21e
LW		 1797 io = GvIO(gv);
1798 if (!io || !IoIFP(io)) {
8c99d73e 1799 retval = -1;
bc37a18f
RG		 1800 if (ckWARN(WARN_CLOSED))
1801 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1802 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1803 goto say_undef;
1804 }
1805
1806 if (PerlIO_isutf8(IoIFP(io))) {
1807 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1808 }
7d59b7e4
NIS		 1809 else {
1810 if (DO_UTF8(bufsv))
1811 sv_utf8_downgrade(bufsv, FALSE);
1812 buffer = SvPV(bufsv, blen);
1813 }
1814
1815 if (PL_op->op_type == OP_SYSWRITE) {
1816 IV offset;
1817 if (DO_UTF8(bufsv)) {
1818 /* length and offset are in chars */
1819 blen = sv_len_utf8(bufsv);
1820 }
bbce6d69 1821 if (MARK < SP) {
a0d0e21e 1822 offset = SvIVx(*++MARK);
bbce6d69 1823 if (offset < 0) {
eb160463 1824 if (-offset > (IV)blen)
cea2e8a9 1825 DIE(aTHX_ "Offset outside string");
bbce6d69 1826 offset += blen;
eb160463 1827 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1828 DIE(aTHX_ "Offset outside string");
bbce6d69 1829 } else
a0d0e21e
LW		 1830 offset = 0;
1831 if (length > blen - offset)
1832 length = blen - offset;
7d59b7e4 1833 if (DO_UTF8(bufsv)) {
c8d31a35 1834 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1835 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1836 }
1837 else {
1838 buffer = buffer+offset;
1839 }
a7092146 1840#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1841 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1842 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1843 buffer, length, 0);
a7092146
GS		 1844 }
1845 else
1846#endif
1847 {
94e4c244 1848 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1849 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1850 buffer, length);
a7092146 1851 }
a0d0e21e
LW		 1852 }
1853#ifdef HAS_SOCKET
1854 else if (SP > MARK) {
1855 char *sockbuf;
1856 STRLEN mlen;
1857 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1858 /* length is really flags */
8c99d73e
GS		 1859 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1860 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1861 }
1862 else
7d59b7e4 1863 /* length is really flags */
8c99d73e 1864 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1865#else
1866 else
cea2e8a9 1867 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1868#endif
8c99d73e 1869 if (retval < 0)
a0d0e21e
LW		 1870 goto say_undef;
1871 SP = ORIGMARK;
f36eea10
JH		 1872 if (DO_UTF8(bufsv))
1873 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1874#if Size_t_size > IVSIZE
1875 PUSHn(retval);
1876#else
1877 PUSHi(retval);
1878#endif
a0d0e21e
LW		 1879 RETURN;
1880
1881 say_undef:
1882 SP = ORIGMARK;
1883 RETPUSHUNDEF;
1884}
1885
1886PP(pp_recv)
1887{
cea2e8a9 1888 return pp_sysread();
a0d0e21e
LW		 1889}
1890
1891PP(pp_eof)
1892{
39644a26 1893 dSP;
a0d0e21e 1894 GV *gv;
5b468f54 1895 IO *io;
4592e6ca 1896 MAGIC *mg;
a0d0e21e 1897
32da55ab 1898 if (MAXARG == 0) {
146174a9
CB		 1899 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1900 IO *io;
ed2c6b9b 1901 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1902 io = GvIO(gv);
1903 if (io && !IoIFP(io)) {
1904 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1905 IoLINES(io) = 0;
1906 IoFLAGS(io) &= ~IOf_START;
1907 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1908 sv_setpvn(GvSV(gv), "-", 1);
1909 SvSETMAGIC(GvSV(gv));
1910 }
1911 else if (!nextargv(gv))
1912 RETPUSHYES;
1913 }
1914 }
1915 else
1916 gv = PL_last_in_gv; /* eof */
1917 }
a0d0e21e 1918 else
146174a9 1919 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1920
5b468f54
AMS		 1921 if (gv && (io = GvIO(gv))
1922 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1923 {
4592e6ca 1924 PUSHMARK(SP);
5b468f54 1925 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1926 PUTBACK;
1927 ENTER;
864dbfa3 1928 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1929 LEAVE;
1930 SPAGAIN;
1931 RETURN;
1932 }
1933
54310121 1934 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1935 RETURN;
1936}
1937
1938PP(pp_tell)
1939{
39644a26 1940 dSP; dTARGET;
301e8125 1941 GV *gv;
5b468f54 1942 IO *io;
4592e6ca 1943 MAGIC *mg;
a0d0e21e 1944
32da55ab 1945 if (MAXARG == 0)
3280af22 1946 gv = PL_last_in_gv;
a0d0e21e 1947 else
3280af22 1948 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1949
5b468f54
AMS		 1950 if (gv && (io = GvIO(gv))
1951 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1952 {
4592e6ca 1953 PUSHMARK(SP);
5b468f54 1954 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1955 PUTBACK;
1956 ENTER;
864dbfa3 1957 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1958 LEAVE;
1959 SPAGAIN;
1960 RETURN;
1961 }
1962
146174a9
CB		 1963#if LSEEKSIZE > IVSIZE
1964 PUSHn( do_tell(gv) );
1965#else
a0d0e21e 1966 PUSHi( do_tell(gv) );
146174a9 1967#endif
a0d0e21e
LW		 1968 RETURN;
1969}
1970
1971PP(pp_seek)
1972{
cea2e8a9 1973 return pp_sysseek();
137443ea 1974}
1975
1976PP(pp_sysseek)
1977{
39644a26 1978 dSP;
a0d0e21e 1979 GV *gv;
5b468f54 1980 IO *io;
a0d0e21e 1981 int whence = POPi;
146174a9
CB		 1982#if LSEEKSIZE > IVSIZE
1983 Off_t offset = (Off_t)SvNVx(POPs);
1984#else
d9b3e12d 1985 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1986#endif
4592e6ca 1987 MAGIC *mg;
a0d0e21e 1988
3280af22 1989 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1990
5b468f54
AMS		 1991 if (gv && (io = GvIO(gv))
1992 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1993 {
4592e6ca 1994 PUSHMARK(SP);
5b468f54 1995 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 1996#if LSEEKSIZE > IVSIZE
1997 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1998#else
b448e4fe 1999 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2000#endif
b448e4fe 2001 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2002 PUTBACK;
2003 ENTER;
864dbfa3 2004 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2005 LEAVE;
2006 SPAGAIN;
2007 RETURN;
2008 }
2009
533c011a 2010 if (PL_op->op_type == OP_SEEK)
8903cb82 2011 PUSHs(boolSV(do_seek(gv, offset, whence)));
2012 else {
b448e4fe
JH		 2013 Off_t sought = do_sysseek(gv, offset, whence);
2014 if (sought < 0)
146174a9
CB		 2015 PUSHs(&PL_sv_undef);
2016 else {
b448e4fe 2017 SV* sv = sought ?
146174a9 2018#if LSEEKSIZE > IVSIZE
b448e4fe 2019 newSVnv((NV)sought)
146174a9 2020#else
b448e4fe 2021 newSViv(sought)
146174a9
CB		 2022#endif
2023 : newSVpvn(zero_but_true, ZBTLEN);
2024 PUSHs(sv_2mortal(sv));
2025 }
8903cb82 2026 }
a0d0e21e
LW		 2027 RETURN;
2028}
2029
2030PP(pp_truncate)
2031{
39644a26 2032 dSP;
8c99d73e
GS		 2033 /* There seems to be no consensus on the length type of truncate()
2034 * and ftruncate(), both off_t and size_t have supporters. In
2035 * general one would think that when using large files, off_t is
2036 * at least as wide as size_t, so using an off_t should be okay. */
2037 /* XXX Configure probe for the length type of *truncate() needed XXX */
2038 Off_t len;
a0d0e21e 2039
25342a55 2040#if Off_t_size > IVSIZE
8c99d73e
GS		 2041 len = (Off_t)POPn;
2042#else
2043 len = (Off_t)POPi;
2044#endif
2045 /* Checking for length < 0 is problematic as the type might or
301e8125 2046 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2047 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2048 SETERRNO(0,0);
5d94fbed 2049#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2050 {
2051 STRLEN n_a;
2052 int result = 1;
2053 GV *tmpgv;
090bf15b
SR		 2054 IO *io;
2055
d05c1ba0
JH		 2056 if (PL_op->op_flags & OPf_SPECIAL) {
2057 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2058
090bf15b
SR		 2059 do_ftruncate_gv:
2060 if (!GvIO(tmpgv))
2061 result = 0;
d05c1ba0 2062 else {
090bf15b
SR		 2063 PerlIO *fp;
2064 io = GvIOp(tmpgv);
2065 do_ftruncate_io:
2066 TAINT_PROPER("truncate");
2067 if (!(fp = IoIFP(io))) {
2068 result = 0;
2069 }
2070 else {
2071 PerlIO_flush(fp);
cbdc8872 2072#ifdef HAS_TRUNCATE
090bf15b 2073 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2074#else
090bf15b 2075 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2076#endif
090bf15b
SR		 2077 result = 0;
2078 }
d05c1ba0 2079 }
cbdc8872 2080 }
d05c1ba0
JH		 2081 else {
2082 SV *sv = POPs;
2083 char *name;
72f496dc 2084
d05c1ba0
JH		 2085 if (SvTYPE(sv) == SVt_PVGV) {
2086 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2087 goto do_ftruncate_gv;
d05c1ba0
JH		 2088 }
2089 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2090 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2091 goto do_ftruncate_gv;
2092 }
2093 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2094 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2095 goto do_ftruncate_io;
d05c1ba0 2096 }
1e422769 2097
d05c1ba0
JH		 2098 name = SvPV(sv, n_a);
2099 TAINT_PROPER("truncate");
cbdc8872 2100#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2101 if (truncate(name, len) < 0)
2102 result = 0;
cbdc8872 2103#else
d05c1ba0
JH		 2104 {
2105 int tmpfd;
2106
2107 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2108 result = 0;
d05c1ba0
JH		 2109 else {
2110 if (my_chsize(tmpfd, len) < 0)
2111 result = 0;
2112 PerlLIO_close(tmpfd);
2113 }
cbdc8872 2114 }
a0d0e21e 2115#endif
d05c1ba0 2116 }
a0d0e21e 2117
d05c1ba0
JH		 2118 if (result)
2119 RETPUSHYES;
2120 if (!errno)
93189314 2121 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2122 RETPUSHUNDEF;
2123 }
a0d0e21e 2124#else
cea2e8a9 2125 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2126#endif
2127}
2128
2129PP(pp_fcntl)
2130{
cea2e8a9 2131 return pp_ioctl();
a0d0e21e
LW		 2132}
2133
2134PP(pp_ioctl)
2135{
39644a26 2136 dSP; dTARGET;
748a9306 2137 SV *argsv = POPs;
3bb7c1b4 2138 unsigned int func = POPu;
533c011a 2139 int optype = PL_op->op_type;
a0d0e21e 2140 char *s;
324aa91a 2141 IV retval;
a0d0e21e 2142 GV *gv = (GV*)POPs;
c289d2f7 2143 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2144
748a9306 2145 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2146 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2147 report_evil_fh(gv, io, PL_op->op_type);
93189314 2148 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2149 RETPUSHUNDEF;
2150 }
2151
748a9306 2152 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2153 STRLEN len;
324aa91a 2154 STRLEN need;
748a9306 2155 s = SvPV_force(argsv, len);
324aa91a
HF		 2156 need = IOCPARM_LEN(func);
2157 if (len < need) {
2158 s = Sv_Grow(argsv, need + 1);
2159 SvCUR_set(argsv, need);
a0d0e21e
LW		 2160 }
2161
748a9306 2162 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2163 }
2164 else {
748a9306 2165 retval = SvIV(argsv);
c529f79d 2166 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2167 }
2168
2169 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2170
2171 if (optype == OP_IOCTL)
2172#ifdef HAS_IOCTL
76e3520e 2173 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2174#else
cea2e8a9 2175 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2176#endif
2177 else
c214f4ad
WB		 2178#ifndef HAS_FCNTL
2179 DIE(aTHX_ "fcntl is not implemented");
2180#else
55497cff 2181#if defined(OS2) && defined(__EMX__)
760ac839 2182 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2183#else
760ac839 2184 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2185#endif
6652bd42 2186#endif
a0d0e21e 2187
6652bd42 2188#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2189 if (SvPOK(argsv)) {
2190 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2191 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2192 OP_NAME(PL_op));
748a9306
LW		 2193 s[SvCUR(argsv)] = 0; /* put our null back */
2194 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2195 }
2196
2197 if (retval == -1)
2198 RETPUSHUNDEF;
2199 if (retval != 0) {
2200 PUSHi(retval);
2201 }
2202 else {
8903cb82 2203 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2204 }
4808266b 2205#endif
c214f4ad 2206 RETURN;
a0d0e21e
LW		 2207}
2208
2209PP(pp_flock)
2210{
9cad6237 2211#ifdef FLOCK
39644a26 2212 dSP; dTARGET;
a0d0e21e
LW		 2213 I32 value;
2214 int argtype;
2215 GV *gv;
bc37a18f 2216 IO *io = NULL;
760ac839 2217 PerlIO *fp;
16d20bd9 2218
a0d0e21e 2219 argtype = POPi;
32da55ab 2220 if (MAXARG == 0)
3280af22 2221 gv = PL_last_in_gv;
a0d0e21e
LW		 2222 else
2223 gv = (GV*)POPs;
bc37a18f
RG		 2224 if (gv && (io = GvIO(gv)))
2225 fp = IoIFP(io);
2226 else {
a0d0e21e 2227 fp = Nullfp;
bc37a18f
RG		 2228 io = NULL;
2229 }
a0d0e21e 2230 if (fp) {
68dc0745 2231 (void)PerlIO_flush(fp);
76e3520e 2232 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2233 }
cb50131a 2234 else {
bc37a18f
RG		 2235 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2236 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2237 value = 0;
93189314 2238 SETERRNO(EBADF,RMS_IFI);
cb50131a 2239 }
a0d0e21e
LW		 2240 PUSHi(value);
2241 RETURN;
2242#else
cea2e8a9 2243 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2244#endif
2245}
2246
2247/* Sockets. */
2248
2249PP(pp_socket)
2250{
a0d0e21e 2251#ifdef HAS_SOCKET
9cad6237 2252 dSP;
a0d0e21e
LW		 2253 GV *gv;
2254 register IO *io;
2255 int protocol = POPi;
2256 int type = POPi;
2257 int domain = POPi;
2258 int fd;
2259
2260 gv = (GV*)POPs;
c289d2f7 2261 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2262
c289d2f7
JH		 2263 if (!gv || !io) {
2264 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2265 report_evil_fh(gv, io, PL_op->op_type);
2266 if (IoIFP(io))
2267 do_close(gv, FALSE);
93189314 2268 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2269 RETPUSHUNDEF;
2270 }
2271
57171420
BS		 2272 if (IoIFP(io))
2273 do_close(gv, FALSE);
2274
a0d0e21e 2275 TAINT_PROPER("socket");
6ad3d225 2276 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2277 if (fd < 0)
2278 RETPUSHUNDEF;
479b2847
GS		 2279 IoIFP(io) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE); /* stdio gets confused about sockets */
2280 IoOFP(io) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2281 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2282 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2283 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2284 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2285 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2286 RETPUSHUNDEF;
2287 }
8d2a6795
GS		 2288#if defined(HAS_FCNTL) && defined(F_SETFD)
2289 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2290#endif
a0d0e21e 2291
d5ff79b3
OF		 2292#ifdef EPOC
2293 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2294#endif
2295
a0d0e21e
LW		 2296 RETPUSHYES;
2297#else
cea2e8a9 2298 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2299#endif
2300}
2301
2302PP(pp_sockpair)
2303{
c95c94b1 2304#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2305 dSP;
a0d0e21e
LW		 2306 GV *gv1;
2307 GV *gv2;
2308 register IO *io1;
2309 register IO *io2;
2310 int protocol = POPi;
2311 int type = POPi;
2312 int domain = POPi;
2313 int fd[2];
2314
2315 gv2 = (GV*)POPs;
2316 gv1 = (GV*)POPs;
c289d2f7
JH		 2317 io1 = gv1 ? GvIOn(gv1) : NULL;
2318 io2 = gv2 ? GvIOn(gv2) : NULL;
2319 if (!gv1 || !gv2 || !io1 || !io2) {
2320 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2321 if (!gv1 || !io1)
2322 report_evil_fh(gv1, io1, PL_op->op_type);
2323 if (!gv2 || !io2)
2324 report_evil_fh(gv1, io2, PL_op->op_type);
2325 }
2326 if (IoIFP(io1))
2327 do_close(gv1, FALSE);
2328 if (IoIFP(io2))
2329 do_close(gv2, FALSE);
a0d0e21e 2330 RETPUSHUNDEF;
c289d2f7 2331 }
a0d0e21e 2332
dc0d0a5f
JH		 2333 if (IoIFP(io1))
2334 do_close(gv1, FALSE);
2335 if (IoIFP(io2))
2336 do_close(gv2, FALSE);
57171420 2337
a0d0e21e 2338 TAINT_PROPER("socketpair");
6ad3d225 2339 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2340 RETPUSHUNDEF;
479b2847
GS		 2341 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"PIPESOCK_MODE);
2342 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"PIPESOCK_MODE);
50952442 2343 IoTYPE(io1) = IoTYPE_SOCKET;
479b2847
GS		 2344 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"PIPESOCK_MODE);
2345 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"PIPESOCK_MODE);
50952442 2346 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2347 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2348 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2349 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2350 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2351 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2352 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2353 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2354 RETPUSHUNDEF;
2355 }
8d2a6795
GS		 2356#if defined(HAS_FCNTL) && defined(F_SETFD)
2357 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2358 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2359#endif
a0d0e21e
LW		 2360
2361 RETPUSHYES;
2362#else
cea2e8a9 2363 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2364#endif
2365}
2366
2367PP(pp_bind)
2368{
a0d0e21e 2369#ifdef HAS_SOCKET
9cad6237 2370 dSP;
eec2d3df 2371#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2372 extern void GETPRIVMODE();
2373 extern void GETUSERMODE();
eec2d3df 2374#endif
748a9306 2375 SV *addrsv = POPs;
a0d0e21e
LW		 2376 char *addr;
2377 GV *gv = (GV*)POPs;
2378 register IO *io = GvIOn(gv);
2379 STRLEN len;
eec2d3df
GS		 2380 int bind_ok = 0;
2381#ifdef MPE
2382 int mpeprivmode = 0;
2383#endif
a0d0e21e
LW		 2384
2385 if (!io || !IoIFP(io))
2386 goto nuts;
2387
748a9306 2388 addr = SvPV(addrsv, len);
a0d0e21e 2389 TAINT_PROPER("bind");
eec2d3df
GS		 2390#ifdef MPE /* Deal with MPE bind() peculiarities */
2391 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2392 /* The address *MUST* stupidly be zero. */
2393 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2394 /* PRIV mode is required to bind() to ports < 1024. */
2395 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2396 ((struct sockaddr_in *)addr)->sin_port > 0) {
2397 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2398 mpeprivmode = 1;
2399 }
2400 }
2401#endif /* MPE */
2402 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2403 (struct sockaddr *)addr, len) >= 0)
2404 bind_ok = 1;
2405
2406#ifdef MPE /* Switch back to USER mode */
2407 if (mpeprivmode)
2408 GETUSERMODE();
2409#endif /* MPE */
2410
2411 if (bind_ok)
a0d0e21e
LW		 2412 RETPUSHYES;
2413 else
2414 RETPUSHUNDEF;
2415
2416nuts:
599cee73 2417 if (ckWARN(WARN_CLOSED))
bc37a18f 2418 report_evil_fh(gv, io, PL_op->op_type);
93189314 2419 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2420 RETPUSHUNDEF;
2421#else
cea2e8a9 2422 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2423#endif
2424}
2425
2426PP(pp_connect)
2427{
a0d0e21e 2428#ifdef HAS_SOCKET
9cad6237 2429 dSP;
748a9306 2430 SV *addrsv = POPs;
a0d0e21e
LW		 2431 char *addr;
2432 GV *gv = (GV*)POPs;
2433 register IO *io = GvIOn(gv);
2434 STRLEN len;
2435
2436 if (!io || !IoIFP(io))
2437 goto nuts;
2438
748a9306 2439 addr = SvPV(addrsv, len);
a0d0e21e 2440 TAINT_PROPER("connect");
6ad3d225 2441 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2442 RETPUSHYES;
2443 else
2444 RETPUSHUNDEF;
2445
2446nuts:
599cee73 2447 if (ckWARN(WARN_CLOSED))
bc37a18f 2448 report_evil_fh(gv, io, PL_op->op_type);
93189314 2449 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2450 RETPUSHUNDEF;
2451#else
cea2e8a9 2452 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2453#endif
2454}
2455
2456PP(pp_listen)
2457{
a0d0e21e 2458#ifdef HAS_SOCKET
9cad6237 2459 dSP;
a0d0e21e
LW		 2460 int backlog = POPi;
2461 GV *gv = (GV*)POPs;
c289d2f7 2462 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2463
c289d2f7 2464 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2465 goto nuts;
2466
6ad3d225 2467 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2468 RETPUSHYES;
2469 else
2470 RETPUSHUNDEF;
2471
2472nuts:
599cee73 2473 if (ckWARN(WARN_CLOSED))
bc37a18f 2474 report_evil_fh(gv, io, PL_op->op_type);
93189314 2475 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2476 RETPUSHUNDEF;
2477#else
cea2e8a9 2478 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2479#endif
2480}
2481
2482PP(pp_accept)
2483{
a0d0e21e 2484#ifdef HAS_SOCKET
9cad6237 2485 dSP; dTARGET;
a0d0e21e
LW		 2486 GV *ngv;
2487 GV *ggv;
2488 register IO *nstio;
2489 register IO *gstio;
93d47a36
JH		 2490 char namebuf[MAXPATHLEN];
2491#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2492 Sock_size_t len = sizeof (struct sockaddr_in);
2493#else
2494 Sock_size_t len = sizeof namebuf;
2495#endif
a0d0e21e
LW		 2496 int fd;
2497
2498 ggv = (GV*)POPs;
2499 ngv = (GV*)POPs;
2500
2501 if (!ngv)
2502 goto badexit;
2503 if (!ggv)
2504 goto nuts;
2505
2506 gstio = GvIO(ggv);
2507 if (!gstio || !IoIFP(gstio))
2508 goto nuts;
2509
2510 nstio = GvIOn(ngv);
93d47a36 2511 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2512 if (fd < 0)
2513 goto badexit;
a70048fb
AB		 2514 if (IoIFP(nstio))
2515 do_close(ngv, FALSE);
479b2847 2516 IoIFP(nstio) = PerlIO_fdopen(fd, "r"PIPESOCK_MODE);
7e56aaa7 2517 IoOFP(nstio) = PerlIO_fdopen(fd, "w"PIPESOCK_MODE);
50952442 2518 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2519 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2520 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2521 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2522 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2523 goto badexit;
2524 }
8d2a6795
GS		 2525#if defined(HAS_FCNTL) && defined(F_SETFD)
2526 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2527#endif
a0d0e21e 2528
ed79a026 2529#ifdef EPOC
93d47a36 2530 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2531 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2532#endif
381c1bae 2533#ifdef __SCO_VERSION__
93d47a36 2534 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2535#endif
ed79a026 2536
93d47a36 2537 PUSHp(namebuf, len);
a0d0e21e
LW		 2538 RETURN;
2539
2540nuts:
599cee73 2541 if (ckWARN(WARN_CLOSED))
bc37a18f 2542 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2543 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2544
2545badexit:
2546 RETPUSHUNDEF;
2547
2548#else
cea2e8a9 2549 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2550#endif
2551}
2552
2553PP(pp_shutdown)
2554{
a0d0e21e 2555#ifdef HAS_SOCKET
9cad6237 2556 dSP; dTARGET;
a0d0e21e
LW		 2557 int how = POPi;
2558 GV *gv = (GV*)POPs;
2559 register IO *io = GvIOn(gv);
2560
2561 if (!io || !IoIFP(io))
2562 goto nuts;
2563
6ad3d225 2564 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2565 RETURN;
2566
2567nuts:
599cee73 2568 if (ckWARN(WARN_CLOSED))
bc37a18f 2569 report_evil_fh(gv, io, PL_op->op_type);
93189314 2570 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2571 RETPUSHUNDEF;
2572#else
cea2e8a9 2573 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2574#endif
2575}
2576
2577PP(pp_gsockopt)
2578{
2579#ifdef HAS_SOCKET
cea2e8a9 2580 return pp_ssockopt();
a0d0e21e 2581#else
cea2e8a9 2582 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2583#endif
2584}
2585
2586PP(pp_ssockopt)
2587{
a0d0e21e 2588#ifdef HAS_SOCKET
9cad6237 2589 dSP;
533c011a 2590 int optype = PL_op->op_type;
a0d0e21e
LW		 2591 SV *sv;
2592 int fd;
2593 unsigned int optname;
2594 unsigned int lvl;
2595 GV *gv;
2596 register IO *io;
1e422769 2597 Sock_size_t len;
a0d0e21e
LW		 2598
2599 if (optype == OP_GSOCKOPT)
2600 sv = sv_2mortal(NEWSV(22, 257));
2601 else
2602 sv = POPs;
2603 optname = (unsigned int) POPi;
2604 lvl = (unsigned int) POPi;
2605
2606 gv = (GV*)POPs;
2607 io = GvIOn(gv);
2608 if (!io || !IoIFP(io))
2609 goto nuts;
2610
760ac839 2611 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2612 switch (optype) {
2613 case OP_GSOCKOPT:
748a9306 2614 SvGROW(sv, 257);
a0d0e21e 2615 (void)SvPOK_only(sv);
748a9306
LW		 2616 SvCUR_set(sv,256);
2617 *SvEND(sv) ='\0';
1e422769 2618 len = SvCUR(sv);
6ad3d225 2619 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2620 goto nuts2;
1e422769 2621 SvCUR_set(sv, len);
748a9306 2622 *SvEND(sv) ='\0';
a0d0e21e
LW		 2623 PUSHs(sv);
2624 break;
2625 case OP_SSOCKOPT: {
1e422769 2626 char *buf;
2627 int aint;
2628 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2629 STRLEN l;
2630 buf = SvPV(sv, l);
2631 len = l;
1e422769 2632 }
56ee1660 2633 else {
a0d0e21e
LW		 2634 aint = (int)SvIV(sv);
2635 buf = (char*)&aint;
2636 len = sizeof(int);
2637 }
6ad3d225 2638 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2639 goto nuts2;
3280af22 2640 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2641 }
2642 break;
2643 }
2644 RETURN;
2645
2646nuts:
599cee73 2647 if (ckWARN(WARN_CLOSED))
bc37a18f 2648 report_evil_fh(gv, io, optype);
93189314 2649 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2650nuts2:
2651 RETPUSHUNDEF;
2652
2653#else
cea2e8a9 2654 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2655#endif
2656}
2657
2658PP(pp_getsockname)
2659{
2660#ifdef HAS_SOCKET
cea2e8a9 2661 return pp_getpeername();
a0d0e21e 2662#else
cea2e8a9 2663 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2664#endif
2665}
2666
2667PP(pp_getpeername)
2668{
a0d0e21e 2669#ifdef HAS_SOCKET
9cad6237 2670 dSP;
533c011a 2671 int optype = PL_op->op_type;
a0d0e21e
LW		 2672 SV *sv;
2673 int fd;
2674 GV *gv = (GV*)POPs;
2675 register IO *io = GvIOn(gv);
1e422769 2676 Sock_size_t len;
a0d0e21e
LW		 2677
2678 if (!io || !IoIFP(io))
2679 goto nuts;
2680
2681 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2682 (void)SvPOK_only(sv);
1e422769 2683 len = 256;
2684 SvCUR_set(sv, len);
748a9306 2685 *SvEND(sv) ='\0';
760ac839 2686 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2687 switch (optype) {
2688 case OP_GETSOCKNAME:
6ad3d225 2689 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2690 goto nuts2;
2691 break;
2692 case OP_GETPEERNAME:
6ad3d225 2693 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2694 goto nuts2;
490ab354
JH		 2695#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2696 {
2697 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";
2698 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2699 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2700 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2701 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2702 goto nuts2;
490ab354
JH		 2703 }
2704 }
2705#endif
a0d0e21e
LW		 2706 break;
2707 }
13826f2c
CS		 2708#ifdef BOGUS_GETNAME_RETURN
2709 /* Interactive Unix, getpeername() and getsockname()
2710 does not return valid namelen */
1e422769 2711 if (len == BOGUS_GETNAME_RETURN)
2712 len = sizeof(struct sockaddr);
13826f2c 2713#endif
1e422769 2714 SvCUR_set(sv, len);
748a9306 2715 *SvEND(sv) ='\0';
a0d0e21e
LW		 2716 PUSHs(sv);
2717 RETURN;
2718
2719nuts:
599cee73 2720 if (ckWARN(WARN_CLOSED))
bc37a18f 2721 report_evil_fh(gv, io, optype);
93189314 2722 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2723nuts2:
2724 RETPUSHUNDEF;
2725
2726#else
cea2e8a9 2727 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2728#endif
2729}
2730
2731/* Stat calls. */
2732
2733PP(pp_lstat)
2734{
cea2e8a9 2735 return pp_stat();
a0d0e21e
LW		 2736}
2737
2738PP(pp_stat)
2739{
39644a26 2740 dSP;
2dd78f96 2741 GV *gv;
54310121 2742 I32 gimme;
a0d0e21e 2743 I32 max = 13;
2d8e6c8d 2744 STRLEN n_a;
a0d0e21e 2745
533c011a 2746 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2747 gv = cGVOP_gv;
8a4e5b40 2748 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2749 if (gv != PL_defgv) {
2750 if (ckWARN(WARN_IO))
9014280d 2751 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2752 "lstat() on filehandle %s", GvENAME(gv));
2753 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2754 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2755 }
2756
748a9306 2757 do_fstat:
2dd78f96 2758 if (gv != PL_defgv) {
3280af22 2759 PL_laststype = OP_STAT;
2dd78f96 2760 PL_statgv = gv;
3280af22 2761 sv_setpv(PL_statname, "");
2dd78f96
JH		 2762 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2763 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2764 }
9ddeeac9 2765 if (PL_laststatval < 0) {
2dd78f96
JH		 2766 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2767 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2768 max = 0;
9ddeeac9 2769 }
a0d0e21e
LW		 2770 }
2771 else {
748a9306
LW		 2772 SV* sv = POPs;
2773 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2774 gv = (GV*)sv;
748a9306
LW		 2775 goto do_fstat;
2776 }
2777 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2778 gv = (GV*)SvRV(sv);
5d3e98de 2779 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2780 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2781 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2782 goto do_fstat;
2783 }
2d8e6c8d 2784 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2785 PL_statgv = Nullgv;
a0d0e21e 2786#ifdef HAS_LSTAT
533c011a
NIS		 2787 PL_laststype = PL_op->op_type;
2788 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2789 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2790 else
2791#endif
2d8e6c8d 2792 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2793 if (PL_laststatval < 0) {
2d8e6c8d 2794 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2795 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2796 max = 0;
2797 }
2798 }
2799
54310121 2800 gimme = GIMME_V;
2801 if (gimme != G_ARRAY) {
2802 if (gimme != G_VOID)
2803 XPUSHs(boolSV(max));
2804 RETURN;
a0d0e21e
LW		 2805 }
2806 if (max) {
36477c24 2807 EXTEND(SP, max);
2808 EXTEND_MORTAL(max);
1ff81528
PL		 2809 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2810 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2811 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2812 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2813#if Uid_t_size > IVSIZE
2814 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2815#else
23dcd6c8 2816# if Uid_t_sign <= 0
1ff81528 2817 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2818# else
2819 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2820# endif
146174a9 2821#endif
301e8125 2822#if Gid_t_size > IVSIZE
146174a9
CB		 2823 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2824#else
23dcd6c8 2825# if Gid_t_sign <= 0
1ff81528 2826 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2827# else
2828 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2829# endif
146174a9 2830#endif
cbdc8872 2831#ifdef USE_STAT_RDEV
1ff81528 2832 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2833#else
79cb57f6 2834 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2835#endif
146174a9 2836#if Off_t_size > IVSIZE
4a9d6100 2837 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2838#else
1ff81528 2839 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2840#endif
cbdc8872 2841#ifdef BIG_TIME
172ae379
JH		 2842 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2843 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2844 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2845#else
1ff81528
PL		 2846 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2847 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2848 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2849#endif
a0d0e21e 2850#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2851 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2852 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2853#else
79cb57f6
GS		 2854 PUSHs(sv_2mortal(newSVpvn("", 0)));
2855 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2856#endif
2857 }
2858 RETURN;
2859}
2860
2861PP(pp_ftrread)
2862{
9cad6237 2863 I32 result;
2a3ff820 2864 dSP;
5ff3f7a4 2865#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2866 STRLEN n_a;
1af34c76 2867 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2868 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2869 if (result == 0)
2870 RETPUSHYES;
2871 if (result < 0)
2872 RETPUSHUNDEF;
2873 RETPUSHNO;
22865c03
GS		 2874 }
2875 else
cea2e8a9 2876 result = my_stat();
5ff3f7a4 2877#else
cea2e8a9 2878 result = my_stat();
5ff3f7a4 2879#endif
22865c03 2880 SPAGAIN;
a0d0e21e
LW		 2881 if (result < 0)
2882 RETPUSHUNDEF;
3280af22 2883 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2884 RETPUSHYES;
2885 RETPUSHNO;
2886}
2887
2888PP(pp_ftrwrite)
2889{
9cad6237 2890 I32 result;
2a3ff820 2891 dSP;
5ff3f7a4 2892#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2893 STRLEN n_a;
1af34c76 2894 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2895 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2896 if (result == 0)
2897 RETPUSHYES;
2898 if (result < 0)
2899 RETPUSHUNDEF;
2900 RETPUSHNO;
22865c03
GS		 2901 }
2902 else
cea2e8a9 2903 result = my_stat();
5ff3f7a4 2904#else
cea2e8a9 2905 result = my_stat();
5ff3f7a4 2906#endif
22865c03 2907 SPAGAIN;
a0d0e21e
LW		 2908 if (result < 0)
2909 RETPUSHUNDEF;
3280af22 2910 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2911 RETPUSHYES;
2912 RETPUSHNO;
2913}
2914
2915PP(pp_ftrexec)
2916{
9cad6237 2917 I32 result;
2a3ff820 2918 dSP;
5ff3f7a4 2919#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2920 STRLEN n_a;
1af34c76 2921 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2922 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2923 if (result == 0)
2924 RETPUSHYES;
2925 if (result < 0)
2926 RETPUSHUNDEF;
2927 RETPUSHNO;
22865c03
GS		 2928 }
2929 else
cea2e8a9 2930 result = my_stat();
5ff3f7a4 2931#else
cea2e8a9 2932 result = my_stat();
5ff3f7a4 2933#endif
22865c03 2934 SPAGAIN;
a0d0e21e
LW		 2935 if (result < 0)
2936 RETPUSHUNDEF;
3280af22 2937 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2938 RETPUSHYES;
2939 RETPUSHNO;
2940}
2941
2942PP(pp_fteread)
2943{
9cad6237 2944 I32 result;
2a3ff820 2945 dSP;
5ff3f7a4 2946#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2947 STRLEN n_a;
1af34c76 2948 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2949 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2950 if (result == 0)
2951 RETPUSHYES;
2952 if (result < 0)
2953 RETPUSHUNDEF;
2954 RETPUSHNO;
22865c03
GS		 2955 }
2956 else
cea2e8a9 2957 result = my_stat();
5ff3f7a4 2958#else
cea2e8a9 2959 result = my_stat();
5ff3f7a4 2960#endif
22865c03 2961 SPAGAIN;
a0d0e21e
LW		 2962 if (result < 0)
2963 RETPUSHUNDEF;
3280af22 2964 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2965 RETPUSHYES;
2966 RETPUSHNO;
2967}
2968
2969PP(pp_ftewrite)
2970{
9cad6237 2971 I32 result;
2a3ff820 2972 dSP;
5ff3f7a4 2973#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2974 STRLEN n_a;
1af34c76 2975 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2976 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 2977 if (result == 0)
2978 RETPUSHYES;
2979 if (result < 0)
2980 RETPUSHUNDEF;
2981 RETPUSHNO;
22865c03
GS		 2982 }
2983 else
cea2e8a9 2984 result = my_stat();
5ff3f7a4 2985#else
cea2e8a9 2986 result = my_stat();
5ff3f7a4 2987#endif
22865c03 2988 SPAGAIN;
a0d0e21e
LW		 2989 if (result < 0)
2990 RETPUSHUNDEF;
3280af22 2991 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2992 RETPUSHYES;
2993 RETPUSHNO;
2994}
2995
2996PP(pp_fteexec)
2997{
9cad6237 2998 I32 result;
2a3ff820 2999 dSP;
5ff3f7a4 3000#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 3001 STRLEN n_a;
1af34c76 3002 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3003 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3004 if (result == 0)
3005 RETPUSHYES;
3006 if (result < 0)
3007 RETPUSHUNDEF;
3008 RETPUSHNO;
22865c03
GS		 3009 }
3010 else
cea2e8a9 3011 result = my_stat();
5ff3f7a4 3012#else
cea2e8a9 3013 result = my_stat();
5ff3f7a4 3014#endif
22865c03 3015 SPAGAIN;
a0d0e21e
LW		 3016 if (result < 0)
3017 RETPUSHUNDEF;
3280af22 3018 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3019 RETPUSHYES;
3020 RETPUSHNO;
3021}
3022
3023PP(pp_ftis)
3024{
9cad6237 3025 I32 result = my_stat();
2a3ff820 3026 dSP;
a0d0e21e
LW		 3027 if (result < 0)
3028 RETPUSHUNDEF;
3029 RETPUSHYES;
3030}
3031
3032PP(pp_fteowned)
3033{
cea2e8a9 3034 return pp_ftrowned();
a0d0e21e
LW		 3035}
3036
3037PP(pp_ftrowned)
3038{
9cad6237 3039 I32 result = my_stat();
2a3ff820 3040 dSP;
a0d0e21e
LW		 3041 if (result < 0)
3042 RETPUSHUNDEF;
146174a9
CB		 3043 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3044 PL_euid : PL_uid) )
a0d0e21e
LW		 3045 RETPUSHYES;
3046 RETPUSHNO;
3047}
3048
3049PP(pp_ftzero)
3050{
9cad6237 3051 I32 result = my_stat();
2a3ff820 3052 dSP;
a0d0e21e
LW		 3053 if (result < 0)
3054 RETPUSHUNDEF;
146174a9 3055 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3056 RETPUSHYES;
3057 RETPUSHNO;
3058}
3059
3060PP(pp_ftsize)
3061{
9cad6237 3062 I32 result = my_stat();
2a3ff820 3063 dSP; dTARGET;
a0d0e21e
LW		 3064 if (result < 0)
3065 RETPUSHUNDEF;
146174a9
CB		 3066#if Off_t_size > IVSIZE
3067 PUSHn(PL_statcache.st_size);
3068#else
3280af22 3069 PUSHi(PL_statcache.st_size);
146174a9 3070#endif
a0d0e21e
LW		 3071 RETURN;
3072}
3073
3074PP(pp_ftmtime)
3075{
9cad6237 3076 I32 result = my_stat();
2a3ff820 3077 dSP; dTARGET;
a0d0e21e
LW		 3078 if (result < 0)
3079 RETPUSHUNDEF;
c6419e06 3080 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 3081 RETURN;
3082}
3083
3084PP(pp_ftatime)
3085{
9cad6237 3086 I32 result = my_stat();
2a3ff820 3087 dSP; dTARGET;
a0d0e21e
LW		 3088 if (result < 0)
3089 RETPUSHUNDEF;
c6419e06 3090 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3091 RETURN;
3092}
3093
3094PP(pp_ftctime)
3095{
9cad6237 3096 I32 result = my_stat();
2a3ff820 3097 dSP; dTARGET;
a0d0e21e
LW		 3098 if (result < 0)
3099 RETPUSHUNDEF;
c6419e06 3100 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3101 RETURN;
3102}
3103
3104PP(pp_ftsock)
3105{
9cad6237 3106 I32 result = my_stat();
2a3ff820 3107 dSP;
a0d0e21e
LW		 3108 if (result < 0)
3109 RETPUSHUNDEF;
3280af22 3110 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3111 RETPUSHYES;
3112 RETPUSHNO;
3113}
3114
3115PP(pp_ftchr)
3116{
9cad6237 3117 I32 result = my_stat();
2a3ff820 3118 dSP;
a0d0e21e
LW		 3119 if (result < 0)
3120 RETPUSHUNDEF;
3280af22 3121 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3122 RETPUSHYES;
3123 RETPUSHNO;
3124}
3125
3126PP(pp_ftblk)
3127{
9cad6237 3128 I32 result = my_stat();
2a3ff820 3129 dSP;
a0d0e21e
LW		 3130 if (result < 0)
3131 RETPUSHUNDEF;
3280af22 3132 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3133 RETPUSHYES;
3134 RETPUSHNO;
3135}
3136
3137PP(pp_ftfile)
3138{
9cad6237 3139 I32 result = my_stat();
2a3ff820 3140 dSP;
a0d0e21e
LW		 3141 if (result < 0)
3142 RETPUSHUNDEF;
3280af22 3143 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3144 RETPUSHYES;
3145 RETPUSHNO;
3146}
3147
3148PP(pp_ftdir)
3149{
9cad6237 3150 I32 result = my_stat();
2a3ff820 3151 dSP;
a0d0e21e
LW		 3152 if (result < 0)
3153 RETPUSHUNDEF;
3280af22 3154 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3155 RETPUSHYES;
3156 RETPUSHNO;
3157}
3158
3159PP(pp_ftpipe)
3160{
9cad6237 3161 I32 result = my_stat();
2a3ff820 3162 dSP;
a0d0e21e
LW		 3163 if (result < 0)
3164 RETPUSHUNDEF;
3280af22 3165 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3166 RETPUSHYES;
3167 RETPUSHNO;
3168}
3169
3170PP(pp_ftlink)
3171{
9cad6237 3172 I32 result = my_lstat();
2a3ff820 3173 dSP;
a0d0e21e
LW		 3174 if (result < 0)
3175 RETPUSHUNDEF;
3280af22 3176 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3177 RETPUSHYES;
3178 RETPUSHNO;
3179}
3180
3181PP(pp_ftsuid)
3182{
39644a26 3183 dSP;
a0d0e21e 3184#ifdef S_ISUID
cea2e8a9 3185 I32 result = my_stat();
a0d0e21e
LW		 3186 SPAGAIN;
3187 if (result < 0)
3188 RETPUSHUNDEF;
3280af22 3189 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3190 RETPUSHYES;
3191#endif
3192 RETPUSHNO;
3193}
3194
3195PP(pp_ftsgid)
3196{
39644a26 3197 dSP;
a0d0e21e 3198#ifdef S_ISGID
cea2e8a9 3199 I32 result = my_stat();
a0d0e21e
LW		 3200 SPAGAIN;
3201 if (result < 0)
3202 RETPUSHUNDEF;
3280af22 3203 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3204 RETPUSHYES;
3205#endif
3206 RETPUSHNO;
3207}
3208
3209PP(pp_ftsvtx)
3210{
39644a26 3211 dSP;
a0d0e21e 3212#ifdef S_ISVTX
cea2e8a9 3213 I32 result = my_stat();
a0d0e21e
LW		 3214 SPAGAIN;
3215 if (result < 0)
3216 RETPUSHUNDEF;
3280af22 3217 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3218 RETPUSHYES;
3219#endif
3220 RETPUSHNO;
3221}
3222
3223PP(pp_fttty)
3224{
39644a26 3225 dSP;
a0d0e21e
LW		 3226 int fd;
3227 GV *gv;
fb73857a 3228 char *tmps = Nullch;
2d8e6c8d 3229 STRLEN n_a;
fb73857a 3230
533c011a 3231 if (PL_op->op_flags & OPf_REF)
146174a9 3232 gv = cGVOP_gv;
fb73857a 3233 else if (isGV(TOPs))
3234 gv = (GV*)POPs;
3235 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3236 gv = (GV*)SvRV(POPs);
a0d0e21e 3237 else
2d8e6c8d 3238 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3239
a0d0e21e 3240 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3241 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3242 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3243 fd = atoi(tmps);
3244 else
3245 RETPUSHUNDEF;
6ad3d225 3246 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3247 RETPUSHYES;
3248 RETPUSHNO;
3249}
3250
16d20bd9
AD		 3251#if defined(atarist) /* this will work with atariST. Configure will
3252 make guesses for other systems. */
3253# define FILE_base(f) ((f)->_base)
3254# define FILE_ptr(f) ((f)->_ptr)
3255# define FILE_cnt(f) ((f)->_cnt)
3256# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3257#endif
3258
3259PP(pp_fttext)
3260{
39644a26 3261 dSP;
a0d0e21e
LW		 3262 I32 i;
3263 I32 len;
3264 I32 odd = 0;
3265 STDCHAR tbuf[512];
3266 register STDCHAR *s;
3267 register IO *io;
5f05dabc 3268 register SV *sv;
3269 GV *gv;
2d8e6c8d 3270 STRLEN n_a;
146174a9 3271 PerlIO *fp;
a0d0e21e 3272
533c011a 3273 if (PL_op->op_flags & OPf_REF)
146174a9 3274 gv = cGVOP_gv;
5f05dabc 3275 else if (isGV(TOPs))
3276 gv = (GV*)POPs;
3277 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3278 gv = (GV*)SvRV(POPs);
3279 else
3280 gv = Nullgv;
3281
3282 if (gv) {
a0d0e21e 3283 EXTEND(SP, 1);
3280af22
NIS		 3284 if (gv == PL_defgv) {
3285 if (PL_statgv)
3286 io = GvIO(PL_statgv);
a0d0e21e 3287 else {
3280af22 3288 sv = PL_statname;
a0d0e21e
LW		 3289 goto really_filename;
3290 }
3291 }
3292 else {
3280af22
NIS		 3293 PL_statgv = gv;
3294 PL_laststatval = -1;
3295 sv_setpv(PL_statname, "");
3296 io = GvIO(PL_statgv);
a0d0e21e
LW		 3297 }
3298 if (io && IoIFP(io)) {
5f05dabc 3299 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3300 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3301 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3302 if (PL_laststatval < 0)
5f05dabc 3303 RETPUSHUNDEF;
9cbac4c7 3304 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3305 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3306 RETPUSHNO;
3307 else
3308 RETPUSHYES;
9cbac4c7 3309 }
a20bf0c3 3310 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3311 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3312 if (i != EOF)
760ac839 3313 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3314 }
a20bf0c3 3315 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3316 RETPUSHYES;
a20bf0c3
JH		 3317 len = PerlIO_get_bufsiz(IoIFP(io));
3318 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3319 /* sfio can have large buffers - limit to 512 */
3320 if (len > 512)
3321 len = 512;
a0d0e21e
LW		 3322 }
3323 else {
2dd78f96 3324 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3325 gv = cGVOP_gv;
2dd78f96 3326 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3327 }
93189314 3328 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3329 RETPUSHUNDEF;
3330 }
3331 }
3332 else {
3333 sv = POPs;
5f05dabc 3334 really_filename:
3280af22
NIS		 3335 PL_statgv = Nullgv;
3336 PL_laststatval = -1;
5c9aa243 3337 PL_laststype = OP_STAT;
2d8e6c8d 3338 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3339 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3340 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3341 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3342 RETPUSHUNDEF;
3343 }
146174a9
CB		 3344 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3345 if (PL_laststatval < 0) {
3346 (void)PerlIO_close(fp);
5f05dabc 3347 RETPUSHUNDEF;
146174a9 3348 }
60382766 3349 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3350 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3351 (void)PerlIO_close(fp);
a0d0e21e 3352 if (len <= 0) {
533c011a 3353 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3354 RETPUSHNO; /* special case NFS directories */
3355 RETPUSHYES; /* null file is anything */
3356 }
3357 s = tbuf;
3358 }
3359
3360 /* now scan s to look for textiness */
4633a7c4 3361 /* XXX ASCII dependent code */
a0d0e21e 3362
146174a9
CB		 3363#if defined(DOSISH) || defined(USEMYBINMODE)
3364 /* ignore trailing ^Z on short files */
3365 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3366 --len;
3367#endif
3368
a0d0e21e
LW		 3369 for (i = 0; i < len; i++, s++) {
3370 if (!*s) { /* null never allowed in text */
3371 odd += len;
3372 break;
3373 }
9d116dd7 3374#ifdef EBCDIC
301e8125 3375 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3376 odd++;
3377#else
146174a9
CB		 3378 else if (*s & 128) {
3379#ifdef USE_LOCALE
2de3dbcc 3380 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3381 continue;
3382#endif
3383 /* utf8 characters don't count as odd */
fd400ab9 3384 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3385 int ulen = UTF8SKIP(s);
3386 if (ulen < len - i) {
3387 int j;
3388 for (j = 1; j < ulen; j++) {
fd400ab9 3389 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3390 goto not_utf8;
3391 }
3392 --ulen; /* loop does extra increment */
3393 s += ulen;
3394 i += ulen;
3395 continue;
3396 }
3397 }
3398 not_utf8:
3399 odd++;
146174a9 3400 }
a0d0e21e
LW		 3401 else if (*s < 32 &&
3402 *s != '\n' && *s != '\r' && *s != '\b' &&
3403 *s != '\t' && *s != '\f' && *s != 27)
3404 odd++;
9d116dd7 3405#endif
a0d0e21e
LW		 3406 }
3407
533c011a 3408 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3409 RETPUSHNO;
3410 else
3411 RETPUSHYES;
3412}
3413
3414PP(pp_ftbinary)
3415{
cea2e8a9 3416 return pp_fttext();
a0d0e21e
LW		 3417}
3418
3419/* File calls. */
3420
3421PP(pp_chdir)
3422{
39644a26 3423 dSP; dTARGET;
a0d0e21e
LW		 3424 char *tmps;
3425 SV **svp;
2d8e6c8d 3426 STRLEN n_a;
a0d0e21e 3427
35ae6b54
MS		 3428 if( MAXARG == 1 )
3429 tmps = POPpx;
3430 else
3431 tmps = 0;
3432
3433 if( !tmps || !*tmps ) {
3434 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3435 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3436#ifdef VMS
35ae6b54 3437 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3438#endif
35ae6b54
MS		 3439 )
3440 {
3441 if( MAXARG == 1 )
9014280d 3442 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3443 tmps = SvPV(*svp, n_a);
3444 }
72f496dc 3445 else {
389ec635 3446 PUSHi(0);
b7ab37f8 3447 TAINT_PROPER("chdir");
389ec635
MS		 3448 RETURN;
3449 }
8ea155d1 3450 }
8ea155d1 3451
a0d0e21e 3452 TAINT_PROPER("chdir");
6ad3d225 3453 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3454#ifdef VMS
3455 /* Clear the DEFAULT element of ENV so we'll get the new value
3456 * in the future. */
6b88bc9c 3457 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3458#endif
a0d0e21e
LW		 3459 RETURN;
3460}
3461
3462PP(pp_chown)
3463{
a0d0e21e 3464#ifdef HAS_CHOWN
76ffd3b9
IZ		 3465 dSP; dMARK; dTARGET;
3466 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3467
a0d0e21e
LW		 3468 SP = MARK;
3469 PUSHi(value);
3470 RETURN;
3471#else
0322a713 3472 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3473#endif
3474}
3475
3476PP(pp_chroot)
3477{
a0d0e21e 3478#ifdef HAS_CHROOT
76ffd3b9 3479 dSP; dTARGET;
2d8e6c8d 3480 STRLEN n_a;
d05c1ba0 3481 char *tmps = POPpx;
a0d0e21e
LW		 3482 TAINT_PROPER("chroot");
3483 PUSHi( chroot(tmps) >= 0 );
3484 RETURN;
3485#else
cea2e8a9 3486 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3487#endif
3488}
3489
3490PP(pp_unlink)
3491{
39644a26 3492 dSP; dMARK; dTARGET;
a0d0e21e 3493 I32 value;
533c011a 3494 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3495 SP = MARK;
3496 PUSHi(value);
3497 RETURN;
3498}
3499
3500PP(pp_chmod)
3501{
39644a26 3502 dSP; dMARK; dTARGET;
a0d0e21e 3503 I32 value;
533c011a 3504 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3505 SP = MARK;
3506 PUSHi(value);
3507 RETURN;
3508}
3509
3510PP(pp_utime)
3511{
39644a26 3512 dSP; dMARK; dTARGET;
a0d0e21e 3513 I32 value;
533c011a 3514 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3515 SP = MARK;
3516 PUSHi(value);
3517 RETURN;
3518}
3519
3520PP(pp_rename)
3521{
39644a26 3522 dSP; dTARGET;
a0d0e21e 3523 int anum;
2d8e6c8d 3524 STRLEN n_a;
a0d0e21e 3525
2d8e6c8d
GS		 3526 char *tmps2 = POPpx;
3527 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3528 TAINT_PROPER("rename");
3529#ifdef HAS_RENAME
baed7233 3530 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3531#else
6b88bc9c 3532 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3533 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3534 anum = 1;
3535 else {
3654eb6c 3536 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3537 (void)UNLINK(tmps2);
3538 if (!(anum = link(tmps, tmps2)))
3539 anum = UNLINK(tmps);
3540 }
a0d0e21e
LW		 3541 }
3542#endif
3543 SETi( anum >= 0 );
3544 RETURN;
3545}
3546
3547PP(pp_link)
3548{
a0d0e21e 3549#ifdef HAS_LINK
370f6000 3550 dSP; dTARGET;
2d8e6c8d
GS		 3551 STRLEN n_a;
3552 char *tmps2 = POPpx;
3553 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3554 TAINT_PROPER("link");
146174a9 3555 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3556 RETURN;
a0d0e21e 3557#else
0322a713 3558 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3559#endif
a0d0e21e
LW		 3560}
3561
3562PP(pp_symlink)
3563{
a0d0e21e 3564#ifdef HAS_SYMLINK
9cad6237 3565 dSP; dTARGET;
2d8e6c8d
GS		 3566 STRLEN n_a;
3567 char *tmps2 = POPpx;
3568 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3569 TAINT_PROPER("symlink");
3570 SETi( symlink(tmps, tmps2) >= 0 );
3571 RETURN;
3572#else
cea2e8a9 3573 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3574#endif
3575}
3576
3577PP(pp_readlink)
3578{
76ffd3b9 3579 dSP;
a0d0e21e 3580#ifdef HAS_SYMLINK
76ffd3b9 3581 dTARGET;
a0d0e21e 3582 char *tmps;
46fc3d4c 3583 char buf[MAXPATHLEN];
a0d0e21e 3584 int len;
2d8e6c8d 3585 STRLEN n_a;
46fc3d4c 3586
fb73857a 3587#ifndef INCOMPLETE_TAINTS
3588 TAINT;
3589#endif
2d8e6c8d 3590 tmps = POPpx;
97dcea33 3591 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3592 EXTEND(SP, 1);
3593 if (len < 0)
3594 RETPUSHUNDEF;
3595 PUSHp(buf, len);
3596 RETURN;
3597#else
3598 EXTEND(SP, 1);
3599 RETSETUNDEF; /* just pretend it's a normal file */
3600#endif
3601}
3602
3603#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3604STATIC int
cea2e8a9 3605S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3606{
1e422769 3607 char *save_filename = filename;
3608 char *cmdline;
3609 char *s;
760ac839 3610 PerlIO *myfp;
1e422769 3611 int anum = 1;
a0d0e21e 3612
1e422769 3613 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3614 strcpy(cmdline, cmd);
3615 strcat(cmdline, " ");
3616 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3617 *s++ = '\\';
3618 *s++ = *filename++;
3619 }
3620 strcpy(s, " 2>&1");
6ad3d225 3621 myfp = PerlProc_popen(cmdline, "r");
1e422769 3622 Safefree(cmdline);
3623
a0d0e21e 3624 if (myfp) {
1e422769 3625 SV *tmpsv = sv_newmortal();
6b88bc9c 3626 /* Need to save/restore 'PL_rs' ?? */
760ac839 3627 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3628 (void)PerlProc_pclose(myfp);
a0d0e21e 3629 if (s != Nullch) {
1e422769 3630 int e;
3631 for (e = 1;
a0d0e21e 3632#ifdef HAS_SYS_ERRLIST
1e422769 3633 e <= sys_nerr
3634#endif
3635 ; e++)
3636 {
3637 /* you don't see this */
3638 char *errmsg =
3639#ifdef HAS_SYS_ERRLIST
3640 sys_errlist[e]
a0d0e21e 3641#else
1e422769 3642 strerror(e)
a0d0e21e 3643#endif
1e422769 3644 ;
3645 if (!errmsg)
3646 break;
3647 if (instr(s, errmsg)) {
3648 SETERRNO(e,0);
3649 return 0;
3650 }
a0d0e21e 3651 }
748a9306 3652 SETERRNO(0,0);
a0d0e21e
LW		 3653#ifndef EACCES
3654#define EACCES EPERM
3655#endif
1e422769 3656 if (instr(s, "cannot make"))
93189314 3657 SETERRNO(EEXIST,RMS_FEX);
1e422769 3658 else if (instr(s, "existing file"))
93189314 3659 SETERRNO(EEXIST,RMS_FEX);
1e422769 3660 else if (instr(s, "ile exists"))
93189314 3661 SETERRNO(EEXIST,RMS_FEX);
1e422769 3662 else if (instr(s, "non-exist"))
93189314 3663 SETERRNO(ENOENT,RMS_FNF);
1e422769 3664 else if (instr(s, "does not exist"))
93189314 3665 SETERRNO(ENOENT,RMS_FNF);
1e422769 3666 else if (instr(s, "not empty"))
93189314 3667 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3668 else if (instr(s, "cannot access"))
93189314 3669 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3670 else
93189314 3671 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3672 return 0;
3673 }
3674 else { /* some mkdirs return no failure indication */
6b88bc9c 3675 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3676 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3677 anum = !anum;
3678 if (anum)
748a9306 3679 SETERRNO(0,0);
a0d0e21e 3680 else
93189314 3681 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3682 }
3683 return anum;
3684 }
3685 else
3686 return 0;
3687}
3688#endif
3689
0c54f65b
RGS		 3690/* This macro removes trailing slashes from a directory name.
3691 * Different operating and file systems take differently to
3692 * trailing slashes. According to POSIX 1003.1 1996 Edition
3693 * any number of trailing slashes should be allowed.
3694 * Thusly we snip them away so that even non-conforming
3695 * systems are happy.
3696 * We should probably do this "filtering" for all
3697 * the functions that expect (potentially) directory names:
3698 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3699 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3700
3701#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3702 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3703 do { \
3704 (len)--; \
3705 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3706 (tmps) = savepvn((tmps), (len)); \
3707 (copy) = TRUE; \
3708 }
3709
a0d0e21e
LW		 3710PP(pp_mkdir)
3711{
39644a26 3712 dSP; dTARGET;
5a211162 3713 int mode;
a0d0e21e
LW		 3714#ifndef HAS_MKDIR
3715 int oldumask;
3716#endif
df25ddba 3717 STRLEN len;
5a211162 3718 char *tmps;
df25ddba 3719 bool copy = FALSE;
5a211162
GS		 3720
3721 if (MAXARG > 1)
3722 mode = POPi;
3723 else
3724 mode = 0777;
3725
0c54f65b 3726 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3727
3728 TAINT_PROPER("mkdir");
3729#ifdef HAS_MKDIR
6ad3d225 3730 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3731#else
3732 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3733 oldumask = PerlLIO_umask(0);
3734 PerlLIO_umask(oldumask);
3735 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3736#endif
df25ddba
JH		 3737 if (copy)
3738 Safefree(tmps);
a0d0e21e
LW		 3739 RETURN;
3740}
3741
3742PP(pp_rmdir)
3743{
39644a26 3744 dSP; dTARGET;
0c54f65b 3745 STRLEN len;
a0d0e21e 3746 char *tmps;
0c54f65b 3747 bool copy = FALSE;
a0d0e21e 3748
0c54f65b 3749 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3750 TAINT_PROPER("rmdir");
3751#ifdef HAS_RMDIR
0c54f65b 3752 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3753#else
0c54f65b 3754 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3755#endif
0c54f65b
RGS		 3756 if (copy)
3757 Safefree(tmps);
a0d0e21e
LW		 3758 RETURN;
3759}
3760
3761/* Directory calls. */
3762
3763PP(pp_open_dir)
3764{
a0d0e21e 3765#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3766 dSP;
2d8e6c8d
GS		 3767 STRLEN n_a;
3768 char *dirname = POPpx;
1e2c6ed7
JH		 3769 GV *gv = (GV*)POPs;
3770 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3771
3772 if (!io)
3773 goto nope;
3774
3775 if (IoDIRP(io))
6ad3d225
GS		 3776 PerlDir_close(IoDIRP(io));
3777 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3778 goto nope;
3779
3780 RETPUSHYES;
3781nope:
3782 if (!errno)
93189314 3783 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3784 RETPUSHUNDEF;
3785#else
cea2e8a9 3786 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3787#endif
3788}
3789
3790PP(pp_readdir)
3791{
a0d0e21e 3792#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3793 dSP;
fd8cd3a3 3794#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3795 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3796#endif
3797 register Direntry_t *dp;
3798 GV *gv = (GV*)POPs;
3799 register IO *io = GvIOn(gv);
fb73857a 3800 SV *sv;
a0d0e21e
LW		 3801
3802 if (!io || !IoDIRP(io))
3803 goto nope;
3804
3805 if (GIMME == G_ARRAY) {
3806 /*SUPPRESS 560*/
155aba94 3807 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3808#ifdef DIRNAMLEN
79cb57f6 3809 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3810#else
fb73857a 3811 sv = newSVpv(dp->d_name, 0);
3812#endif
3813#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3814 if (!(IoFLAGS(io) & IOf_UNTAINT))
3815 SvTAINTED_on(sv);
a0d0e21e 3816#endif
fb73857a 3817 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3818 }
3819 }
3820 else {
6ad3d225 3821 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3822 goto nope;
3823#ifdef DIRNAMLEN
79cb57f6 3824 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3825#else
fb73857a 3826 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3827#endif
fb73857a 3828#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3829 if (!(IoFLAGS(io) & IOf_UNTAINT))
3830 SvTAINTED_on(sv);
fb73857a 3831#endif
3832 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3833 }
3834 RETURN;
3835
3836nope:
3837 if (!errno)
93189314 3838 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3839 if (GIMME == G_ARRAY)
3840 RETURN;
3841 else
3842 RETPUSHUNDEF;
3843#else
cea2e8a9 3844 DIE(aTHX_ PL_no_dir_func, "readdir");
a0d0e21e
LW		 3845#endif
3846}
3847
3848PP(pp_telldir)
3849{
a0d0e21e 3850#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3851 dSP; dTARGET;
968dcd91
JH		 3852 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3853 /* XXX netbsd still seemed to.
3854 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3855 --JHI 1999-Feb-02 */
3856# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3857 long telldir (DIR *);
dfe9444c 3858# endif
a0d0e21e
LW		 3859 GV *gv = (GV*)POPs;
3860 register IO *io = GvIOn(gv);
3861
3862 if (!io || !IoDIRP(io))
3863 goto nope;
3864
6ad3d225 3865 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3866 RETURN;
3867nope:
3868 if (!errno)
93189314 3869 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3870 RETPUSHUNDEF;
3871#else
cea2e8a9 3872 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3873#endif
3874}
3875
3876PP(pp_seekdir)
3877{
a0d0e21e 3878#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3879 dSP;
a0d0e21e
LW		 3880 long along = POPl;
3881 GV *gv = (GV*)POPs;
3882 register IO *io = GvIOn(gv);
3883
3884 if (!io || !IoDIRP(io))
3885 goto nope;
3886
6ad3d225 3887 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3888
3889 RETPUSHYES;
3890nope:
3891 if (!errno)
93189314 3892 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3893 RETPUSHUNDEF;
3894#else
cea2e8a9 3895 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3896#endif
3897}
3898
3899PP(pp_rewinddir)
3900{
a0d0e21e 3901#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3902 dSP;
a0d0e21e
LW		 3903 GV *gv = (GV*)POPs;
3904 register IO *io = GvIOn(gv);
3905
3906 if (!io || !IoDIRP(io))
3907 goto nope;
3908
6ad3d225 3909 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3910 RETPUSHYES;
3911nope:
3912 if (!errno)
93189314 3913 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3914 RETPUSHUNDEF;
3915#else
cea2e8a9 3916 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3917#endif
3918}
3919
3920PP(pp_closedir)
3921{
a0d0e21e 3922#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3923 dSP;
a0d0e21e
LW		 3924 GV *gv = (GV*)POPs;
3925 register IO *io = GvIOn(gv);
3926
3927 if (!io || !IoDIRP(io))
3928 goto nope;
3929
3930#ifdef VOID_CLOSEDIR
6ad3d225 3931 PerlDir_close(IoDIRP(io));
a0d0e21e 3932#else
6ad3d225 3933 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3934 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3935 goto nope;
748a9306 3936 }
a0d0e21e
LW		 3937#endif
3938 IoDIRP(io) = 0;
3939
3940 RETPUSHYES;
3941nope:
3942 if (!errno)
93189314 3943 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3944 RETPUSHUNDEF;
3945#else
cea2e8a9 3946 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3947#endif
3948}
3949
3950/* Process control. */
3951
3952PP(pp_fork)
3953{
44a8e56a 3954#ifdef HAS_FORK
39644a26 3955 dSP; dTARGET;
761237fe 3956 Pid_t childpid;
a0d0e21e
LW		 3957 GV *tmpgv;
3958
3959 EXTEND(SP, 1);
45bc9206 3960 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3961 childpid = PerlProc_fork();
a0d0e21e
LW		 3962 if (childpid < 0)
3963 RETSETUNDEF;
3964 if (!childpid) {
3965 /*SUPPRESS 560*/
306196c3
MS		 3966 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3967 SvREADONLY_off(GvSV(tmpgv));
146174a9 3968 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3969 SvREADONLY_on(GvSV(tmpgv));
3970 }
4d76a344
RGS		 3971#ifdef THREADS_HAVE_PIDS
3972 PL_ppid = (IV)getppid();
3973#endif
3280af22 3974 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 3975 }
3976 PUSHi(childpid);
3977 RETURN;
3978#else
146174a9 3979# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3980 dSP; dTARGET;
146174a9
CB		 3981 Pid_t childpid;
3982
3983 EXTEND(SP, 1);
3984 PERL_FLUSHALL_FOR_CHILD;
3985 childpid = PerlProc_fork();
60fa28ff
GS		 3986 if (childpid == -1)
3987 RETSETUNDEF;
146174a9
CB		 3988 PUSHi(childpid);
3989 RETURN;
3990# else
0322a713 3991 DIE(aTHX_ PL_no_func, "fork");
146174a9 3992# endif
a0d0e21e
LW		 3993#endif
3994}
3995
3996PP(pp_wait)
3997{
301e8125 3998#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3999 dSP; dTARGET;
761237fe 4000 Pid_t childpid;
a0d0e21e 4001 int argflags;
a0d0e21e 4002
4ffa73a3
JH		 4003 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4004 childpid = wait4pid(-1, &argflags, 0);
4005 else {
4006 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4007 errno == EINTR) {
4008 PERL_ASYNC_CHECK();
4009 }
0a0ada86 4010 }
68a29c53
GS		 4011# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4012 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4013 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4014# else
f86702cc 4015 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4016# endif
44a8e56a 4017 XPUSHi(childpid);
a0d0e21e
LW		 4018 RETURN;
4019#else
0322a713 4020 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4021#endif
4022}
4023
4024PP(pp_waitpid)
4025{
301e8125 4026#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4027 dSP; dTARGET;
761237fe 4028 Pid_t childpid;
a0d0e21e
LW		 4029 int optype;
4030 int argflags;
a0d0e21e 4031
a0d0e21e
LW		 4032 optype = POPi;
4033 childpid = TOPi;
4ffa73a3
JH		 4034 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4035 childpid = wait4pid(childpid, &argflags, optype);
4036 else {
4037 while ((childpid = wait4pid(childpid, &argflags, optype)) == -1 &&
4038 errno == EINTR) {
4039 PERL_ASYNC_CHECK();
4040 }
0a0ada86 4041 }
68a29c53
GS		 4042# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4043 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4044 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4045# else
f86702cc 4046 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4047# endif
44a8e56a 4048 SETi(childpid);
a0d0e21e
LW		 4049 RETURN;
4050#else
0322a713 4051 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4052#endif
4053}
4054
4055PP(pp_system)
4056{
39644a26 4057 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4058 I32 value;
2d8e6c8d 4059 STRLEN n_a;
76ffd3b9 4060 int result;
e7766f89 4061 I32 did_pipes = 0;
a0d0e21e 4062
bbd7eb8a
RD		 4063 if (PL_tainting) {
4064 TAINT_ENV();
4065 while (++MARK <= SP) {
4066 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4067 if (PL_tainted)
bbd7eb8a
RD		 4068 break;
4069 }
4070 MARK = ORIGMARK;
5a445156 4071 TAINT_PROPER("system");
a0d0e21e 4072 }
45bc9206 4073 PERL_FLUSHALL_FOR_CHILD;
273b0206 4074#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4075 {
eb160463
GS		 4076 Pid_t childpid;
4077 int pp[2];
4078
4079 if (PerlProc_pipe(pp) >= 0)
4080 did_pipes = 1;
4081 while ((childpid = PerlProc_fork()) == -1) {
4082 if (errno != EAGAIN) {
4083 value = -1;
4084 SP = ORIGMARK;
4085 PUSHi(value);
4086 if (did_pipes) {
4087 PerlLIO_close(pp[0]);
4088 PerlLIO_close(pp[1]);
4089 }
4090 RETURN;
4091 }
4092 sleep(5);
4093 }
4094 if (childpid > 0) {
4095 Sigsave_t ihand,qhand; /* place to save signals during system() */
4096 int status;
4097
4098 if (did_pipes)
4099 PerlLIO_close(pp[1]);
64ca3a65 4100#ifndef PERL_MICRO
eb160463
GS		 4101 rsignal_save(SIGINT, SIG_IGN, &ihand);
4102 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4103#endif
eb160463
GS		 4104 do {
4105 result = wait4pid(childpid, &status, 0);
4106 } while (result == -1 && errno == EINTR);
64ca3a65 4107#ifndef PERL_MICRO
eb160463
GS		 4108 (void)rsignal_restore(SIGINT, &ihand);
4109 (void)rsignal_restore(SIGQUIT, &qhand);
4110#endif
4111 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4112 do_execfree(); /* free any memory child malloced on fork */
4113 SP = ORIGMARK;
4114 if (did_pipes) {
4115 int errkid;
4116 int n = 0, n1;
4117
4118 while (n < sizeof(int)) {
4119 n1 = PerlLIO_read(pp[0],
4120 (void*)(((char*)&errkid)+n),
4121 (sizeof(int)) - n);
4122 if (n1 <= 0)
4123 break;
4124 n += n1;
4125 }
4126 PerlLIO_close(pp[0]);
4127 if (n) { /* Error */
4128 if (n != sizeof(int))
4129 DIE(aTHX_ "panic: kid popen errno read");
4130 errno = errkid; /* Propagate errno from kid */
4131 STATUS_CURRENT = -1;
4132 }
4133 }
4134 PUSHi(STATUS_CURRENT);
4135 RETURN;
4136 }
4137 if (did_pipes) {
4138 PerlLIO_close(pp[0]);
d5a9bfb0 4139#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4140 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4141#endif
eb160463 4142 }
e0a1f643
JH		 4143 if (PL_op->op_flags & OPf_STACKED) {
4144 SV *really = *++MARK;
4145 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4146 }
4147 else if (SP - MARK != 1)
4148 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4149 else {
4150 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4151 }
4152 PerlProc__exit(-1);
d5a9bfb0 4153 }
c3293030 4154#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4155 PL_statusvalue = 0;
4156 result = 0;
911d147d 4157 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4158 SV *really = *++MARK;
622913ab 4159# if defined(WIN32) || defined(OS2)
54725af6
GS		 4160 value = (I32)do_aspawn(really, MARK, SP);
4161# else
c5be433b 4162 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4163# endif
a0d0e21e 4164 }
54725af6 4165 else if (SP - MARK != 1) {
622913ab 4166# if defined(WIN32) || defined(OS2)
54725af6
GS		 4167 value = (I32)do_aspawn(Nullsv, MARK, SP);
4168# else
c5be433b 4169 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4170# endif
4171 }
a0d0e21e 4172 else {
c5be433b 4173 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4174 }
922b1888
GS		 4175 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4176 result = 1;
f86702cc 4177 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4178 do_execfree();
4179 SP = ORIGMARK;
922b1888 4180 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4181#endif /* !FORK or VMS */
4182 RETURN;
4183}
4184
4185PP(pp_exec)
4186{
39644a26 4187 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4188 I32 value;
2d8e6c8d 4189 STRLEN n_a;
a0d0e21e 4190
bbd7eb8a
RD		 4191 if (PL_tainting) {
4192 TAINT_ENV();
4193 while (++MARK <= SP) {
4194 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4195 if (PL_tainted)
bbd7eb8a
RD		 4196 break;
4197 }
4198 MARK = ORIGMARK;
5a445156 4199 TAINT_PROPER("exec");
bbd7eb8a 4200 }
45bc9206 4201 PERL_FLUSHALL_FOR_CHILD;
533c011a 4202 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4203 SV *really = *++MARK;
4204 value = (I32)do_aexec(really, MARK, SP);
4205 }
4206 else if (SP - MARK != 1)
4207#ifdef VMS
4208 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4209#else
092bebab
JH		 4210# ifdef __OPEN_VM
4211 {
c5be433b 4212 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4213 value = 0;
4214 }
4215# else
a0d0e21e 4216 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4217# endif
a0d0e21e
LW		 4218#endif
4219 else {
a0d0e21e 4220#ifdef VMS
2d8e6c8d 4221 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4222#else
092bebab 4223# ifdef __OPEN_VM
c5be433b 4224 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4225 value = 0;
4226# else
2d8e6c8d 4227 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4228# endif
a0d0e21e
LW		 4229#endif
4230 }
146174a9 4231
a0d0e21e
LW		 4232 SP = ORIGMARK;
4233 PUSHi(value);
4234 RETURN;
4235}
4236
4237PP(pp_kill)
4238{
9cad6237 4239#ifdef HAS_KILL
39644a26 4240 dSP; dMARK; dTARGET;
a0d0e21e 4241 I32 value;
533c011a 4242 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4243 SP = MARK;
4244 PUSHi(value);
4245 RETURN;
4246#else
0322a713 4247 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4248#endif
4249}
4250
4251PP(pp_getppid)
4252{
4253#ifdef HAS_GETPPID
39644a26 4254 dSP; dTARGET;
4d76a344
RGS		 4255# ifdef THREADS_HAVE_PIDS
4256 XPUSHi( PL_ppid );
4257# else
a0d0e21e 4258 XPUSHi( getppid() );
4d76a344 4259# endif
a0d0e21e
LW		 4260 RETURN;
4261#else
cea2e8a9 4262 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4263#endif
4264}
4265
4266PP(pp_getpgrp)
4267{
4268#ifdef HAS_GETPGRP
39644a26 4269 dSP; dTARGET;
d8a83dd3 4270 Pid_t pid;
9853a804 4271 Pid_t pgrp;
a0d0e21e
LW		 4272
4273 if (MAXARG < 1)
4274 pid = 0;
4275 else
4276 pid = SvIVx(POPs);
c3293030 4277#ifdef BSD_GETPGRP
9853a804 4278 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4279#else
146174a9 4280 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4281 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4282 pgrp = getpgrp();
a0d0e21e 4283#endif
9853a804 4284 XPUSHi(pgrp);
a0d0e21e
LW		 4285 RETURN;
4286#else
cea2e8a9 4287 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4288#endif
4289}
4290
4291PP(pp_setpgrp)
4292{
4293#ifdef HAS_SETPGRP
39644a26 4294 dSP; dTARGET;
d8a83dd3
JH		 4295 Pid_t pgrp;
4296 Pid_t pid;
a0d0e21e
LW		 4297 if (MAXARG < 2) {
4298 pgrp = 0;
4299 pid = 0;
4300 }
4301 else {
4302 pgrp = POPi;
4303 pid = TOPi;
4304 }
4305
4306 TAINT_PROPER("setpgrp");
c3293030
IZ		 4307#ifdef BSD_SETPGRP
4308 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4309#else
146174a9
CB		 4310 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4311 || (pid != 0 && pid != PerlProc_getpid()))
4312 {
4313 DIE(aTHX_ "setpgrp can't take arguments");
4314 }
a0d0e21e
LW		 4315 SETi( setpgrp() >= 0 );
4316#endif /* USE_BSDPGRP */
4317 RETURN;
4318#else
cea2e8a9 4319 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4320#endif
4321}
4322
4323PP(pp_getpriority)
4324{
a0d0e21e 4325#ifdef HAS_GETPRIORITY
9cad6237 4326 dSP; dTARGET;
d05c1ba0
JH		 4327 int who = POPi;
4328 int which = TOPi;
a0d0e21e
LW		 4329 SETi( getpriority(which, who) );
4330 RETURN;
4331#else
cea2e8a9 4332 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4333#endif
4334}
4335
4336PP(pp_setpriority)
4337{
a0d0e21e 4338#ifdef HAS_SETPRIORITY
9cad6237 4339 dSP; dTARGET;
d05c1ba0
JH		 4340 int niceval = POPi;
4341 int who = POPi;
4342 int which = TOPi;
a0d0e21e
LW		 4343 TAINT_PROPER("setpriority");
4344 SETi( setpriority(which, who, niceval) >= 0 );
4345 RETURN;
4346#else
cea2e8a9 4347 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4348#endif
4349}
4350
4351/* Time calls. */
4352
4353PP(pp_time)
4354{
39644a26 4355 dSP; dTARGET;
cbdc8872 4356#ifdef BIG_TIME
4357 XPUSHn( time(Null(Time_t*)) );
4358#else
a0d0e21e 4359 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4360#endif
a0d0e21e
LW		 4361 RETURN;
4362}
4363
a0d0e21e
LW		 4364PP(pp_tms)
4365{
9cad6237 4366#ifdef HAS_TIMES
39644a26 4367 dSP;
a0d0e21e 4368 EXTEND(SP, 4);
a0d0e21e 4369#ifndef VMS
3280af22 4370 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4371#else
6b88bc9c 4372 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4373 /* struct tms, though same data */
4374 /* is returned. */
a0d0e21e
LW		 4375#endif
4376
5311654c 4377 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4378 if (GIMME == G_ARRAY) {
5311654c
JH		 4379 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4380 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4381 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4382 }
4383 RETURN;
9cad6237
JH		 4384#else
4385 DIE(aTHX_ "times not implemented");
55497cff 4386#endif /* HAS_TIMES */
a0d0e21e
LW		 4387}
4388
4389PP(pp_localtime)
4390{
cea2e8a9 4391 return pp_gmtime();
a0d0e21e
LW		 4392}
4393
4394PP(pp_gmtime)
4395{
39644a26 4396 dSP;
a0d0e21e
LW		 4397 Time_t when;
4398 struct tm *tmbuf;
4399 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4400 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4401 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4402
4403 if (MAXARG < 1)
4404 (void)time(&when);
4405 else
cbdc8872 4406#ifdef BIG_TIME
4407 when = (Time_t)SvNVx(POPs);
4408#else
a0d0e21e 4409 when = (Time_t)SvIVx(POPs);
cbdc8872 4410#endif
a0d0e21e 4411
533c011a 4412 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4413 tmbuf = localtime(&when);
4414 else
4415 tmbuf = gmtime(&when);
4416
a0d0e21e 4417 if (GIMME != G_ARRAY) {
46fc3d4c 4418 SV *tsv;
9a5ff6d9
AB		 4419 EXTEND(SP, 1);
4420 EXTEND_MORTAL(1);
a0d0e21e
LW		 4421 if (!tmbuf)
4422 RETPUSHUNDEF;
be28567c 4423 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4424 dayname[tmbuf->tm_wday],
4425 monname[tmbuf->tm_mon],
be28567c
GS		 4426 tmbuf->tm_mday,
4427 tmbuf->tm_hour,
4428 tmbuf->tm_min,
4429 tmbuf->tm_sec,
4430 tmbuf->tm_year + 1900);
46fc3d4c 4431 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4432 }
4433 else if (tmbuf) {
9a5ff6d9
AB		 4434 EXTEND(SP, 9);
4435 EXTEND_MORTAL(9);
4436 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4437 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4438 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4439 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4440 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4445 }
4446 RETURN;
4447}
4448
4449PP(pp_alarm)
4450{
9cad6237 4451#ifdef HAS_ALARM
39644a26 4452 dSP; dTARGET;
a0d0e21e 4453 int anum;
a0d0e21e
LW		 4454 anum = POPi;
4455 anum = alarm((unsigned int)anum);
4456 EXTEND(SP, 1);
4457 if (anum < 0)
4458 RETPUSHUNDEF;
c6419e06 4459 PUSHi(anum);
a0d0e21e
LW		 4460 RETURN;
4461#else
0322a713 4462 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4463#endif
4464}
4465
4466PP(pp_sleep)
4467{
39644a26 4468 dSP; dTARGET;
a0d0e21e
LW		 4469 I32 duration;
4470 Time_t lasttime;
4471 Time_t when;
4472
4473 (void)time(&lasttime);
4474 if (MAXARG < 1)
76e3520e 4475 PerlProc_pause();
a0d0e21e
LW		 4476 else {
4477 duration = POPi;
76e3520e 4478 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4479 }
4480 (void)time(&when);
4481 XPUSHi(when - lasttime);
4482 RETURN;
4483}
4484
4485/* Shared memory. */
4486
4487PP(pp_shmget)
4488{
cea2e8a9 4489 return pp_semget();
a0d0e21e
LW		 4490}
4491
4492PP(pp_shmctl)
4493{
cea2e8a9 4494 return pp_semctl();
a0d0e21e
LW		 4495}
4496
4497PP(pp_shmread)
4498{
cea2e8a9 4499 return pp_shmwrite();
a0d0e21e
LW		 4500}
4501
4502PP(pp_shmwrite)
4503{
4504#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4505 dSP; dMARK; dTARGET;
533c011a 4506 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4507 SP = MARK;
4508 PUSHi(value);
4509 RETURN;
4510#else
cea2e8a9 4511 return pp_semget();
a0d0e21e
LW		 4512#endif
4513}
4514
4515/* Message passing. */
4516
4517PP(pp_msgget)
4518{
cea2e8a9 4519 return pp_semget();
a0d0e21e
LW		 4520}
4521
4522PP(pp_msgctl)
4523{
cea2e8a9 4524 return pp_semctl();
a0d0e21e
LW		 4525}
4526
4527PP(pp_msgsnd)
4528{
4529#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4530 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4531 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4532 SP = MARK;
4533 PUSHi(value);
4534 RETURN;
4535#else
cea2e8a9 4536 return pp_semget();
a0d0e21e
LW		 4537#endif
4538}
4539
4540PP(pp_msgrcv)
4541{
4542#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4543 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4544 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4545 SP = MARK;
4546 PUSHi(value);
4547 RETURN;
4548#else
cea2e8a9 4549 return pp_semget();
a0d0e21e
LW		 4550#endif
4551}
4552
4553/* Semaphores. */
4554
4555PP(pp_semget)
4556{
4557#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4558 dSP; dMARK; dTARGET;
533c011a 4559 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4560 SP = MARK;
4561 if (anum == -1)
4562 RETPUSHUNDEF;
4563 PUSHi(anum);
4564 RETURN;
4565#else
cea2e8a9 4566 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4567#endif
4568}
4569
4570PP(pp_semctl)
4571{
4572#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4573 dSP; dMARK; dTARGET;
533c011a 4574 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4575 SP = MARK;
4576 if (anum == -1)
4577 RETSETUNDEF;
4578 if (anum != 0) {
4579 PUSHi(anum);
4580 }
4581 else {
8903cb82 4582 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4583 }
4584 RETURN;
4585#else
cea2e8a9 4586 return pp_semget();
a0d0e21e
LW		 4587#endif
4588}
4589
4590PP(pp_semop)
4591{
4592#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4593 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4594 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4595 SP = MARK;
4596 PUSHi(value);
4597 RETURN;
4598#else
cea2e8a9 4599 return pp_semget();
a0d0e21e
LW		 4600#endif
4601}
4602
4603/* Get system info. */
4604
4605PP(pp_ghbyname)
4606{
693762b4 4607#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4608 return pp_ghostent();
a0d0e21e 4609#else
cea2e8a9 4610 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4611#endif
4612}
4613
4614PP(pp_ghbyaddr)
4615{
693762b4 4616#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4617 return pp_ghostent();
a0d0e21e 4618#else
cea2e8a9 4619 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4620#endif
4621}
4622
4623PP(pp_ghostent)
4624{
693762b4 4625#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4626 dSP;
533c011a 4627 I32 which = PL_op->op_type;
a0d0e21e
LW		 4628 register char **elem;
4629 register SV *sv;
dc45a647 4630#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4631 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4632 struct hostent *gethostbyname(Netdb_name_t);
4633 struct hostent *gethostent(void);
a0d0e21e
LW		 4634#endif
4635 struct hostent *hent;
4636 unsigned long len;
2d8e6c8d 4637 STRLEN n_a;
a0d0e21e
LW		 4638
4639 EXTEND(SP, 10);
edd309b7 4640 if (which == OP_GHBYNAME) {
dc45a647 4641#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4642 char* name = POPpbytex;
4643 hent = PerlSock_gethostbyname(name);
dc45a647 4644#else
cea2e8a9 4645 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4646#endif
edd309b7 4647 }
a0d0e21e 4648 else if (which == OP_GHBYADDR) {
dc45a647 4649#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4650 int addrtype = POPi;
748a9306 4651 SV *addrsv = POPs;
a0d0e21e 4652 STRLEN addrlen;
595ae481 4653 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4654
4599a1de 4655 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4656#else
cea2e8a9 4657 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4658#endif
a0d0e21e
LW		 4659 }
4660 else
4661#ifdef HAS_GETHOSTENT
6ad3d225 4662 hent = PerlSock_gethostent();
a0d0e21e 4663#else
cea2e8a9 4664 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4665#endif
4666
4667#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4668 if (!hent) {
4669#ifdef USE_REENTRANT_API
4670# ifdef USE_GETHOSTENT_ERRNO
4671 h_errno = PL_reentrant_buffer->_gethostent_errno;
4672# endif
4673#endif
4674 STATUS_NATIVE_SET(h_errno);
4675 }
a0d0e21e
LW		 4676#endif
4677
4678 if (GIMME != G_ARRAY) {
4679 PUSHs(sv = sv_newmortal());
4680 if (hent) {
4681 if (which == OP_GHBYNAME) {
fd0af264 4682 if (hent->h_addr)
4683 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4684 }
4685 else
4686 sv_setpv(sv, (char*)hent->h_name);
4687 }
4688 RETURN;
4689 }
4690
4691 if (hent) {
3280af22 4692 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4693 sv_setpv(sv, (char*)hent->h_name);
3280af22 4694 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4695 for (elem = hent->h_aliases; elem && *elem; elem++) {
4696 sv_catpv(sv, *elem);
4697 if (elem[1])
4698 sv_catpvn(sv, " ", 1);
4699 }
3280af22 4700 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4701 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4702 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4703 len = hent->h_length;
1e422769 4704 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4705#ifdef h_addr
4706 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4707 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4708 sv_setpvn(sv, *elem, len);
4709 }
4710#else
6b88bc9c 4711 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4712 if (hent->h_addr)
4713 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4714#endif /* h_addr */
4715 }
4716 RETURN;
4717#else
cea2e8a9 4718 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4719#endif
4720}
4721
4722PP(pp_gnbyname)
4723{
693762b4 4724#ifdef HAS_GETNETBYNAME
cea2e8a9 4725 return pp_gnetent();
a0d0e21e 4726#else
cea2e8a9 4727 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4728#endif
4729}
4730
4731PP(pp_gnbyaddr)
4732{
693762b4 4733#ifdef HAS_GETNETBYADDR
cea2e8a9 4734 return pp_gnetent();
a0d0e21e 4735#else
cea2e8a9 4736 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4737#endif
4738}
4739
4740PP(pp_gnetent)
4741{
693762b4 4742#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4743 dSP;
533c011a 4744 I32 which = PL_op->op_type;
a0d0e21e
LW		 4745 register char **elem;
4746 register SV *sv;
dc45a647 4747#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4748 struct netent *getnetbyaddr(Netdb_net_t, int);
4749 struct netent *getnetbyname(Netdb_name_t);
4750 struct netent *getnetent(void);
8ac85365 4751#endif
a0d0e21e 4752 struct netent *nent;
2d8e6c8d 4753 STRLEN n_a;
a0d0e21e 4754
edd309b7 4755 if (which == OP_GNBYNAME){
dc45a647 4756#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4757 char *name = POPpbytex;
4758 nent = PerlSock_getnetbyname(name);
dc45a647 4759#else
cea2e8a9 4760 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4761#endif
edd309b7 4762 }
a0d0e21e 4763 else if (which == OP_GNBYADDR) {
dc45a647 4764#ifdef HAS_GETNETBYADDR
a0d0e21e 4765 int addrtype = POPi;
3bb7c1b4 4766 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4767 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4768#else
cea2e8a9 4769 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4770#endif
a0d0e21e
LW		 4771 }
4772 else
dc45a647 4773#ifdef HAS_GETNETENT
76e3520e 4774 nent = PerlSock_getnetent();
dc45a647 4775#else
cea2e8a9 4776 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4777#endif
a0d0e21e 4778
10bc17b6
JH		 4779#ifdef HOST_NOT_FOUND
4780 if (!nent) {
4781#ifdef USE_REENTRANT_API
4782# ifdef USE_GETNETENT_ERRNO
4783 h_errno = PL_reentrant_buffer->_getnetent_errno;
4784# endif
4785#endif
4786 STATUS_NATIVE_SET(h_errno);
4787 }
4788#endif
4789
a0d0e21e
LW		 4790 EXTEND(SP, 4);
4791 if (GIMME != G_ARRAY) {
4792 PUSHs(sv = sv_newmortal());
4793 if (nent) {
4794 if (which == OP_GNBYNAME)
1e422769 4795 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4796 else
4797 sv_setpv(sv, nent->n_name);
4798 }
4799 RETURN;
4800 }
4801
4802 if (nent) {
3280af22 4803 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4804 sv_setpv(sv, nent->n_name);
3280af22 4805 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4806 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4807 sv_catpv(sv, *elem);
4808 if (elem[1])
4809 sv_catpvn(sv, " ", 1);
4810 }
3280af22 4811 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4812 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4813 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4814 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4815 }
4816
4817 RETURN;
4818#else
cea2e8a9 4819 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4820#endif
4821}
4822
4823PP(pp_gpbyname)
4824{
693762b4 4825#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4826 return pp_gprotoent();
a0d0e21e 4827#else
cea2e8a9 4828 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4829#endif
4830}
4831
4832PP(pp_gpbynumber)
4833{
693762b4 4834#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4835 return pp_gprotoent();
a0d0e21e 4836#else
cea2e8a9 4837 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4838#endif
4839}
4840
4841PP(pp_gprotoent)
4842{
693762b4 4843#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4844 dSP;
533c011a 4845 I32 which = PL_op->op_type;
a0d0e21e 4846 register char **elem;
301e8125 4847 register SV *sv;
dc45a647 4848#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4849 struct protoent *getprotobyname(Netdb_name_t);
4850 struct protoent *getprotobynumber(int);
4851 struct protoent *getprotoent(void);
8ac85365 4852#endif
a0d0e21e 4853 struct protoent *pent;
2d8e6c8d 4854 STRLEN n_a;
a0d0e21e 4855
edd309b7 4856 if (which == OP_GPBYNAME) {
e5c9fcd0 4857#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4858 char* name = POPpbytex;
4859 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4860#else
cea2e8a9 4861 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4862#endif
edd309b7
JH		 4863 }
4864 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4865#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4866 int number = POPi;
4867 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4868#else
edd309b7 4869 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4870#endif
edd309b7 4871 }
a0d0e21e 4872 else
e5c9fcd0 4873#ifdef HAS_GETPROTOENT
6ad3d225 4874 pent = PerlSock_getprotoent();
e5c9fcd0 4875#else
cea2e8a9 4876 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4877#endif
a0d0e21e
LW		 4878
4879 EXTEND(SP, 3);
4880 if (GIMME != G_ARRAY) {
4881 PUSHs(sv = sv_newmortal());
4882 if (pent) {
4883 if (which == OP_GPBYNAME)
1e422769 4884 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4885 else
4886 sv_setpv(sv, pent->p_name);
4887 }
4888 RETURN;
4889 }
4890
4891 if (pent) {
3280af22 4892 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4893 sv_setpv(sv, pent->p_name);
3280af22 4894 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4895 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4896 sv_catpv(sv, *elem);
4897 if (elem[1])
4898 sv_catpvn(sv, " ", 1);
4899 }
3280af22 4900 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4901 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4902 }
4903
4904 RETURN;
4905#else
cea2e8a9 4906 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4907#endif
4908}
4909
4910PP(pp_gsbyname)
4911{
9ec75305 4912#ifdef HAS_GETSERVBYNAME
cea2e8a9 4913 return pp_gservent();
a0d0e21e 4914#else
cea2e8a9 4915 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4916#endif
4917}
4918
4919PP(pp_gsbyport)
4920{
9ec75305 4921#ifdef HAS_GETSERVBYPORT
cea2e8a9 4922 return pp_gservent();
a0d0e21e 4923#else
cea2e8a9 4924 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4925#endif
4926}
4927
4928PP(pp_gservent)
4929{
693762b4 4930#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4931 dSP;
533c011a 4932 I32 which = PL_op->op_type;
a0d0e21e
LW		 4933 register char **elem;
4934 register SV *sv;
dc45a647 4935#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4936 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4937 struct servent *getservbyport(int, Netdb_name_t);
4938 struct servent *getservent(void);
8ac85365 4939#endif
a0d0e21e 4940 struct servent *sent;
2d8e6c8d 4941 STRLEN n_a;
a0d0e21e
LW		 4942
4943 if (which == OP_GSBYNAME) {
dc45a647 4944#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4945 char *proto = POPpbytex;
4946 char *name = POPpbytex;
a0d0e21e
LW		 4947
4948 if (proto && !*proto)
4949 proto = Nullch;
4950
6ad3d225 4951 sent = PerlSock_getservbyname(name, proto);
dc45a647 4952#else
cea2e8a9 4953 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4954#endif
a0d0e21e
LW		 4955 }
4956 else if (which == OP_GSBYPORT) {
dc45a647 4957#ifdef HAS_GETSERVBYPORT
42e0c139 4958 char *proto = POPpbytex;
eb160463 4959 unsigned short port = (unsigned short)POPu;
a0d0e21e 4960
2b872cca
SR		 4961 if (proto && !*proto)
4962 proto = Nullch;
4963
36477c24 4964#ifdef HAS_HTONS
6ad3d225 4965 port = PerlSock_htons(port);
36477c24 4966#endif
6ad3d225 4967 sent = PerlSock_getservbyport(port, proto);
dc45a647 4968#else
cea2e8a9 4969 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4970#endif
a0d0e21e
LW		 4971 }
4972 else
e5c9fcd0 4973#ifdef HAS_GETSERVENT
6ad3d225 4974 sent = PerlSock_getservent();
e5c9fcd0 4975#else
cea2e8a9 4976 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4977#endif
a0d0e21e
LW		 4978
4979 EXTEND(SP, 4);
4980 if (GIMME != G_ARRAY) {
4981 PUSHs(sv = sv_newmortal());
4982 if (sent) {
4983 if (which == OP_GSBYNAME) {
4984#ifdef HAS_NTOHS
6ad3d225 4985 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4986#else
1e422769 4987 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4988#endif
4989 }
4990 else
4991 sv_setpv(sv, sent->s_name);
4992 }
4993 RETURN;
4994 }
4995
4996 if (sent) {
3280af22 4997 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4998 sv_setpv(sv, sent->s_name);
3280af22 4999 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5000 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5001 sv_catpv(sv, *elem);
5002 if (elem[1])
5003 sv_catpvn(sv, " ", 1);
5004 }
3280af22 5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5006#ifdef HAS_NTOHS
76e3520e 5007 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5008#else
1e422769 5009 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5010#endif
3280af22 5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5012 sv_setpv(sv, sent->s_proto);
5013 }
5014
5015 RETURN;
5016#else
cea2e8a9 5017 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5018#endif
5019}
5020
5021PP(pp_shostent)
5022{
693762b4 5023#ifdef HAS_SETHOSTENT
9cad6237 5024 dSP;
76e3520e 5025 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5026 RETSETYES;
5027#else
cea2e8a9 5028 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5029#endif
5030}
5031
5032PP(pp_snetent)
5033{
693762b4 5034#ifdef HAS_SETNETENT
9cad6237 5035 dSP;
76e3520e 5036 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5037 RETSETYES;
5038#else
cea2e8a9 5039 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5040#endif
5041}
5042
5043PP(pp_sprotoent)
5044{
693762b4 5045#ifdef HAS_SETPROTOENT
9cad6237 5046 dSP;
76e3520e 5047 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5048 RETSETYES;
5049#else
cea2e8a9 5050 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5051#endif
5052}
5053
5054PP(pp_sservent)
5055{
693762b4 5056#ifdef HAS_SETSERVENT
9cad6237 5057 dSP;
76e3520e 5058 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5059 RETSETYES;
5060#else
cea2e8a9 5061 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5062#endif
5063}
5064
5065PP(pp_ehostent)
5066{
693762b4 5067#ifdef HAS_ENDHOSTENT
9cad6237 5068 dSP;
76e3520e 5069 PerlSock_endhostent();
924508f0 5070 EXTEND(SP,1);
a0d0e21e
LW		 5071 RETPUSHYES;
5072#else
cea2e8a9 5073 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5074#endif
5075}
5076
5077PP(pp_enetent)
5078{
693762b4 5079#ifdef HAS_ENDNETENT
9cad6237 5080 dSP;
76e3520e 5081 PerlSock_endnetent();
924508f0 5082 EXTEND(SP,1);
a0d0e21e
LW		 5083 RETPUSHYES;
5084#else
cea2e8a9 5085 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5086#endif
5087}
5088
5089PP(pp_eprotoent)
5090{
693762b4 5091#ifdef HAS_ENDPROTOENT
9cad6237 5092 dSP;
76e3520e 5093 PerlSock_endprotoent();
924508f0 5094 EXTEND(SP,1);
a0d0e21e
LW		 5095 RETPUSHYES;
5096#else
cea2e8a9 5097 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5098#endif
5099}
5100
5101PP(pp_eservent)
5102{
693762b4 5103#ifdef HAS_ENDSERVENT
9cad6237 5104 dSP;
76e3520e 5105 PerlSock_endservent();
924508f0 5106 EXTEND(SP,1);
a0d0e21e
LW		 5107 RETPUSHYES;
5108#else
cea2e8a9 5109 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5110#endif
5111}
5112
5113PP(pp_gpwnam)
5114{
5115#ifdef HAS_PASSWD
cea2e8a9 5116 return pp_gpwent();
a0d0e21e 5117#else
cea2e8a9 5118 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5119#endif
5120}
5121
5122PP(pp_gpwuid)
5123{
5124#ifdef HAS_PASSWD
cea2e8a9 5125 return pp_gpwent();
a0d0e21e 5126#else
cea2e8a9 5127 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5128#endif
5129}
5130
5131PP(pp_gpwent)
5132{
0994c4d0 5133#ifdef HAS_PASSWD
9cad6237 5134 dSP;
533c011a 5135 I32 which = PL_op->op_type;
a0d0e21e 5136 register SV *sv;
2d8e6c8d 5137 STRLEN n_a;
e3aefe8d 5138 struct passwd *pwent = NULL;
301e8125 5139 /*
bcf53261
JH		 5140 * We currently support only the SysV getsp* shadow password interface.
5141 * The interface is declared in <shadow.h> and often one needs to link
5142 * with -lsecurity or some such.
5143 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5144 * (and SCO?)
5145 *
5146 * AIX getpwnam() is clever enough to return the encrypted password
5147 * only if the caller (euid?) is root.
5148 *
5149 * There are at least two other shadow password APIs. Many platforms
5150 * seem to contain more than one interface for accessing the shadow
5151 * password databases, possibly for compatibility reasons.
3813c136 5152 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5153 * are much more complicated, but also very similar to each other.
5154 *
5155 * <sys/types.h>
5156 * <sys/security.h>
5157 * <prot.h>
5158 * struct pr_passwd *getprpw*();
5159 * The password is in
3813c136
JH		 5160 * char getprpw*(...).ufld.fd_encrypt[]
5161 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5162 *
5163 * <sys/types.h>
5164 * <sys/security.h>
5165 * <prot.h>
5166 * struct es_passwd *getespw*();
5167 * The password is in
5168 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5169 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5170 *
3813c136 5171 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5172 *
5173 * In HP-UX for getprpw*() the manual page claims that one should include
5174 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5175 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5176 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5177 *
5178 * Note that <sys/security.h> is already probed for, but currently
5179 * it is only included in special cases.
301e8125 5180 *
bcf53261
JH		 5181 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5182 * be preferred interface, even though also the getprpw*() interface
5183 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5184 * One also needs to call set_auth_parameters() in main() before
5185 * doing anything else, whether one is using getespw*() or getprpw*().
5186 *
5187 * Note that accessing the shadow databases can be magnitudes
5188 * slower than accessing the standard databases.
bcf53261
JH		 5189 *
5190 * --jhi
5191 */
a0d0e21e 5192
e3aefe8d
JH		 5193 switch (which) {
5194 case OP_GPWNAM:
edd309b7
JH		 5195 {
5196 char* name = POPpbytex;
5197 pwent = getpwnam(name);
5198 }
5199 break;
e3aefe8d 5200 case OP_GPWUID:
edd309b7
JH		 5201 {
5202 Uid_t uid = POPi;
5203 pwent = getpwuid(uid);
5204 }
e3aefe8d
JH		 5205 break;
5206 case OP_GPWENT:
1883634f 5207# ifdef HAS_GETPWENT
e3aefe8d 5208 pwent = getpwent();
faea9016
IRC		 5209#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5210 if (pwent) pwent = getpwnam(pwent->pw_name);
5211#endif
1883634f 5212# else
a45d1c96 5213 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5214# endif
e3aefe8d
JH		 5215 break;
5216 }
8c0bfa08 5217
a0d0e21e
LW		 5218 EXTEND(SP, 10);
5219 if (GIMME != G_ARRAY) {
5220 PUSHs(sv = sv_newmortal());
5221 if (pwent) {
5222 if (which == OP_GPWNAM)
1883634f 5223# if Uid_t_sign <= 0
1e422769 5224 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5225# else
23dcd6c8 5226 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5227# endif
a0d0e21e
LW		 5228 else
5229 sv_setpv(sv, pwent->pw_name);
5230 }
5231 RETURN;
5232 }
5233
5234 if (pwent) {
3280af22 5235 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5236 sv_setpv(sv, pwent->pw_name);
6ee623d5 5237
3280af22 5238 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5239 SvPOK_off(sv);
5240 /* If we have getspnam(), we try to dig up the shadow
5241 * password. If we are underprivileged, the shadow
5242 * interface will set the errno to EACCES or similar,
5243 * and return a null pointer. If this happens, we will
5244 * use the dummy password (usually "*" or "x") from the
5245 * standard password database.
5246 *
5247 * In theory we could skip the shadow call completely
5248 * if euid != 0 but in practice we cannot know which
5249 * security measures are guarding the shadow databases
5250 * on a random platform.
5251 *
5252 * Resist the urge to use additional shadow interfaces.
5253 * Divert the urge to writing an extension instead.
5254 *
5255 * --jhi */
e3aefe8d 5256# ifdef HAS_GETSPNAM
3813c136
JH		 5257 {
5258 struct spwd *spwent;
5259 int saverrno; /* Save and restore errno so that
5260 * underprivileged attempts seem
5261 * to have never made the unsccessful
5262 * attempt to retrieve the shadow password. */
5263
5264 saverrno = errno;
5265 spwent = getspnam(pwent->pw_name);
5266 errno = saverrno;
5267 if (spwent && spwent->sp_pwdp)
5268 sv_setpv(sv, spwent->sp_pwdp);
5269 }
f1066039 5270# endif
e020c87d 5271# ifdef PWPASSWD
3813c136
JH		 5272 if (!SvPOK(sv)) /* Use the standard password, then. */
5273 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5274# endif
3813c136 5275
1883634f 5276# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5277 /* passwd is tainted because user himself can diddle with it.
5278 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5279 SvTAINTED_on(sv);
1883634f 5280# endif
6ee623d5 5281
3280af22 5282 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5283# if Uid_t_sign <= 0
1e422769 5284 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5285# else
23dcd6c8 5286 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5287# endif
6ee623d5 5288
3280af22 5289 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5290# if Uid_t_sign <= 0
1e422769 5291 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5292# else
23dcd6c8 5293 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5294# endif
3813c136
JH		 5295 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5296 * because of the poor interface of the Perl getpw*(),
5297 * not because there's some standard/convention saying so.
5298 * A better interface would have been to return a hash,
5299 * but we are accursed by our history, alas. --jhi. */
3280af22 5300 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5301# ifdef PWCHANGE
1e422769 5302 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5303# else
1883634f
JH		 5304# ifdef PWQUOTA
5305 sv_setiv(sv, (IV)pwent->pw_quota);
5306# else
a1757be1 5307# ifdef PWAGE
a0d0e21e 5308 sv_setpv(sv, pwent->pw_age);
a1757be1 5309# endif
6ee623d5
GS		 5310# endif
5311# endif
6ee623d5 5312
3813c136
JH		 5313 /* pw_class and pw_comment are mutually exclusive--.
5314 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5315 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5316# ifdef PWCLASS
a0d0e21e 5317 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5318# else
5319# ifdef PWCOMMENT
a0d0e21e 5320 sv_setpv(sv, pwent->pw_comment);
1883634f 5321# endif
6ee623d5 5322# endif
6ee623d5 5323
3280af22 5324 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5325# ifdef PWGECOS
a0d0e21e 5326 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5327# endif
5328# ifndef INCOMPLETE_TAINTS
d2719217 5329 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5330 SvTAINTED_on(sv);
1883634f 5331# endif
6ee623d5 5332
3280af22 5333 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5334 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5335
3280af22 5336 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5337 sv_setpv(sv, pwent->pw_shell);
1883634f 5338# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5339 /* pw_shell is tainted because user himself can diddle with it. */
5340 SvTAINTED_on(sv);
1883634f 5341# endif
6ee623d5 5342
1883634f 5343# ifdef PWEXPIRE
6b88bc9c 5344 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5345 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5346# endif
a0d0e21e
LW		 5347 }
5348 RETURN;
5349#else
cea2e8a9 5350 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5351#endif
5352}
5353
5354PP(pp_spwent)
5355{
d493b042 5356#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5357 dSP;
a0d0e21e
LW		 5358 setpwent();
5359 RETPUSHYES;
5360#else
cea2e8a9 5361 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5362#endif
5363}
5364
5365PP(pp_epwent)
5366{
28e8609d 5367#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5368 dSP;
a0d0e21e
LW		 5369 endpwent();
5370 RETPUSHYES;
5371#else
cea2e8a9 5372 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5373#endif
5374}
5375
5376PP(pp_ggrnam)
5377{
5378#ifdef HAS_GROUP
cea2e8a9 5379 return pp_ggrent();
a0d0e21e 5380#else
cea2e8a9 5381 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5382#endif
5383}
5384
5385PP(pp_ggrgid)
5386{
5387#ifdef HAS_GROUP
cea2e8a9 5388 return pp_ggrent();
a0d0e21e 5389#else
cea2e8a9 5390 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5391#endif
5392}
5393
5394PP(pp_ggrent)
5395{
0994c4d0 5396#ifdef HAS_GROUP
9cad6237 5397 dSP;
533c011a 5398 I32 which = PL_op->op_type;
a0d0e21e
LW		 5399 register char **elem;
5400 register SV *sv;
5401 struct group *grent;
2d8e6c8d 5402 STRLEN n_a;
a0d0e21e 5403
edd309b7
JH		 5404 if (which == OP_GGRNAM) {
5405 char* name = POPpbytex;
5406 grent = (struct group *)getgrnam(name);
5407 }
5408 else if (which == OP_GGRGID) {
5409 Gid_t gid = POPi;
5410 grent = (struct group *)getgrgid(gid);
5411 }
a0d0e21e 5412 else
0994c4d0 5413#ifdef HAS_GETGRENT
a0d0e21e 5414 grent = (struct group *)getgrent();
0994c4d0
JH		 5415#else
5416 DIE(aTHX_ PL_no_func, "getgrent");
5417#endif
a0d0e21e
LW		 5418
5419 EXTEND(SP, 4);
5420 if (GIMME != G_ARRAY) {
5421 PUSHs(sv = sv_newmortal());
5422 if (grent) {
5423 if (which == OP_GGRNAM)
1e422769 5424 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5425 else
5426 sv_setpv(sv, grent->gr_name);
5427 }
5428 RETURN;
5429 }
5430
5431 if (grent) {
3280af22 5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5433 sv_setpv(sv, grent->gr_name);
28e8609d 5434
3280af22 5435 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5436#ifdef GRPASSWD
a0d0e21e 5437 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5438#endif
5439
3280af22 5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5441 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5442
5b56e7c5 5443#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5444 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5445 /* In UNICOS/mk (_CRAYMPP) the multithreading
5446 * versions (getgrnam_r, getgrgid_r)
5447 * seem to return an illegal pointer
5448 * as the group members list, gr_mem.
5449 * getgrent() doesn't even have a _r version
5450 * but the gr_mem is poisonous anyway.
5451 * So yes, you cannot get the list of group
5452 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5453 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5454 sv_catpv(sv, *elem);
5455 if (elem[1])
5456 sv_catpvn(sv, " ", 1);
5457 }
3d7e8424 5458#endif
a0d0e21e
LW		 5459 }
5460
5461 RETURN;
5462#else
cea2e8a9 5463 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5464#endif
5465}
5466
5467PP(pp_sgrent)
5468{
28e8609d 5469#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5470 dSP;
a0d0e21e
LW		 5471 setgrent();
5472 RETPUSHYES;
5473#else
cea2e8a9 5474 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5475#endif
5476}
5477
5478PP(pp_egrent)
5479{
28e8609d 5480#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5481 dSP;
a0d0e21e
LW		 5482 endgrent();
5483 RETPUSHYES;
5484#else
cea2e8a9 5485 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5486#endif
5487}
5488
5489PP(pp_getlogin)
5490{
a0d0e21e 5491#ifdef HAS_GETLOGIN
9cad6237 5492 dSP; dTARGET;
a0d0e21e
LW		 5493 char *tmps;
5494 EXTEND(SP, 1);
76e3520e 5495 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5496 RETPUSHUNDEF;
5497 PUSHp(tmps, strlen(tmps));
5498 RETURN;
5499#else
cea2e8a9 5500 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5501#endif
5502}
5503
5504/* Miscellaneous. */
5505
5506PP(pp_syscall)
5507{
d2719217 5508#ifdef HAS_SYSCALL
39644a26 5509 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5510 register I32 items = SP - MARK;
5511 unsigned long a[20];
5512 register I32 i = 0;
5513 I32 retval = -1;
2d8e6c8d 5514 STRLEN n_a;
a0d0e21e 5515
3280af22 5516 if (PL_tainting) {
a0d0e21e 5517 while (++MARK <= SP) {
bbce6d69 5518 if (SvTAINTED(*MARK)) {
5519 TAINT;
5520 break;
5521 }
a0d0e21e
LW		 5522 }
5523 MARK = ORIGMARK;
5524 TAINT_PROPER("syscall");
5525 }
5526
5527 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5528 * or where sizeof(long) != sizeof(char*). But such machines will
5529 * not likely have syscall implemented either, so who cares?
5530 */
5531 while (++MARK <= SP) {
5532 if (SvNIOK(*MARK) || !i)
5533 a[i++] = SvIV(*MARK);
3280af22 5534 else if (*MARK == &PL_sv_undef)
748a9306 5535 a[i++] = 0;
301e8125 5536 else
2d8e6c8d 5537 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5538 if (i > 15)
5539 break;
5540 }
5541 switch (items) {
5542 default:
cea2e8a9 5543 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5544 case 0:
cea2e8a9 5545 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5546 case 1:
5547 retval = syscall(a[0]);
5548 break;
5549 case 2:
5550 retval = syscall(a[0],a[1]);
5551 break;
5552 case 3:
5553 retval = syscall(a[0],a[1],a[2]);
5554 break;
5555 case 4:
5556 retval = syscall(a[0],a[1],a[2],a[3]);
5557 break;
5558 case 5:
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5560 break;
5561 case 6:
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5563 break;
5564 case 7:
5565 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5566 break;
5567 case 8:
5568 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5569 break;
5570#ifdef atarist
5571 case 9:
5572 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5573 break;
5574 case 10:
5575 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5576 break;
5577 case 11:
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]);
5580 break;
5581 case 12:
5582 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5583 a[10],a[11]);
5584 break;
5585 case 13:
5586 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5587 a[10],a[11],a[12]);
5588 break;
5589 case 14:
5590 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5591 a[10],a[11],a[12],a[13]);
5592 break;
5593#endif /* atarist */
5594 }
5595 SP = ORIGMARK;
5596 PUSHi(retval);
5597 RETURN;
5598#else
cea2e8a9 5599 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5600#endif
5601}
5602
ff68c719 5603#ifdef FCNTL_EMULATE_FLOCK
301e8125 5604
ff68c719 5605/* XXX Emulate flock() with fcntl().
5606 What's really needed is a good file locking module.
5607*/
5608
cea2e8a9
GS		 5609static int
5610fcntl_emulate_flock(int fd, int operation)
ff68c719 5611{
5612 struct flock flock;
301e8125 5613
ff68c719 5614 switch (operation & ~LOCK_NB) {
5615 case LOCK_SH:
5616 flock.l_type = F_RDLCK;
5617 break;
5618 case LOCK_EX:
5619 flock.l_type = F_WRLCK;
5620 break;
5621 case LOCK_UN:
5622 flock.l_type = F_UNLCK;
5623 break;
5624 default:
5625 errno = EINVAL;
5626 return -1;
5627 }
5628 flock.l_whence = SEEK_SET;
d9b3e12d 5629 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5630
ff68c719 5631 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5632}
5633
5634#endif /* FCNTL_EMULATE_FLOCK */
5635
5636#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5637
5638/* XXX Emulate flock() with lockf(). This is just to increase
5639 portability of scripts. The calls are not completely
5640 interchangeable. What's really needed is a good file
5641 locking module.
5642*/
5643
76c32331 5644/* The lockf() constants might have been defined in <unistd.h>.
5645 Unfortunately, <unistd.h> causes troubles on some mixed
5646 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5647
5648 Further, the lockf() constants aren't POSIX, so they might not be
5649 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5650 just stick in the SVID values and be done with it. Sigh.
5651*/
5652
5653# ifndef F_ULOCK
5654# define F_ULOCK 0 /* Unlock a previously locked region */
5655# endif
5656# ifndef F_LOCK
5657# define F_LOCK 1 /* Lock a region for exclusive use */
5658# endif
5659# ifndef F_TLOCK
5660# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5661# endif
5662# ifndef F_TEST
5663# define F_TEST 3 /* Test a region for other processes locks */
5664# endif
5665
cea2e8a9
GS		 5666static int
5667lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5668{
5669 int i;
84902520
TB		 5670 int save_errno;
5671 Off_t pos;
5672
5673 /* flock locks entire file so for lockf we need to do the same */
5674 save_errno = errno;
6ad3d225 5675 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5676 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5677 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5678 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5679 errno = save_errno;
5680
16d20bd9
AD		 5681 switch (operation) {
5682
5683 /* LOCK_SH - get a shared lock */
5684 case LOCK_SH:
5685 /* LOCK_EX - get an exclusive lock */
5686 case LOCK_EX:
5687 i = lockf (fd, F_LOCK, 0);
5688 break;
5689
5690 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5691 case LOCK_SH|LOCK_NB:
5692 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5693 case LOCK_EX|LOCK_NB:
5694 i = lockf (fd, F_TLOCK, 0);
5695 if (i == -1)
5696 if ((errno == EAGAIN) || (errno == EACCES))
5697 errno = EWOULDBLOCK;
5698 break;
5699
ff68c719 5700 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5701 case LOCK_UN:
ff68c719 5702 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5703 i = lockf (fd, F_ULOCK, 0);
5704 break;
5705
5706 /* Default - can't decipher operation */
5707 default:
5708 i = -1;
5709 errno = EINVAL;
5710 break;
5711 }
84902520
TB		 5712
5713 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5714 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5715
16d20bd9
AD		 5716 return (i);
5717}
ff68c719 5718
5719#endif /* LOCKF_EMULATE_FLOCK */
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