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Rewording of doc change #25812
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, 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
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790 89#elif defined (VMS) && defined (my_getpwent)
9fa802f3 90 struct passwd *Perl_my_getpwent (pTHX);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
72cc7e2a 121# define my_chsize PerlLIO_chsize
27da23d5
JH		 122#else
123# ifdef HAS_TRUNCATE
124# define my_chsize PerlLIO_chsize
125# else
126I32 my_chsize(int fd, Off_t length);
127# endif
cbdc8872 128#endif
129
ff68c719 130#ifdef HAS_FLOCK
131# define FLOCK flock
132#else /* no flock() */
133
36477c24 134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138# if defined(HAS_FCNTL) && !defined(I_FCNTL)
139# include <fcntl.h>
140# endif
141
9d9004a9 142# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 143# define FLOCK fcntl_emulate_flock
144# define FCNTL_EMULATE_FLOCK
145# else /* no flock() or fcntl(F_SETLK,...) */
146# ifdef HAS_LOCKF
147# define FLOCK lockf_emulate_flock
148# define LOCKF_EMULATE_FLOCK
149# endif /* lockf */
150# endif /* no flock() or fcntl(F_SETLK,...) */
151
152# ifdef FLOCK
20ce7b12 153 static int FLOCK (int, int);
ff68c719 154
155 /*
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
158 */
159# ifndef LOCK_SH
160# define LOCK_SH 1
161# endif
162# ifndef LOCK_EX
163# define LOCK_EX 2
164# endif
165# ifndef LOCK_NB
166# define LOCK_NB 4
167# endif
168# ifndef LOCK_UN
169# define LOCK_UN 8
170# endif
171# endif /* emulating flock() */
172
173#endif /* no flock() */
55497cff 174
85ab1d1d 175#define ZBTLEN 10
27da23d5 176static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 177
5ff3f7a4
GS		 178#if defined(I_SYS_ACCESS) && !defined(R_OK)
179# include <sys/access.h>
180#endif
181
c529f79d
CB		 182#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183# define FD_CLOEXEC 1 /* NeXT needs this */
184#endif
185
a4af207c
JH		 186#include "reentr.h"
187
9cffb111
OS		 188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
5ff3f7a4
GS		 200#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201#undef PERL_EFF_ACCESS_W_OK
202#undef PERL_EFF_ACCESS_X_OK
203
a4323dee
MB		 204/* AIX 5.2 and below use mktime for localtime, and defines the edge case
205 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
206 * available in the 32bit environment, which could warrant Configure
207 * checks in the future.
208 */
209#ifdef _AIX
210#define LOCALTIME_EDGECASE_BROKEN
211#endif
212
5ff3f7a4
GS		 213/* F_OK unused: if stat() cannot find it... */
214
215#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 216 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 217# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
218# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
219# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
220#endif
221
222#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 223# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 224# include <sys/security.h>
225# endif
c955f117
JH		 226# ifdef ACC_SELF
227 /* HP SecureWare */
228# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
229# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
230# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
231# else
232 /* SCO */
233# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
234# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
235# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
236# endif
5ff3f7a4
GS		 237#endif
238
239#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 240 /* AIX */
5ff3f7a4
GS		 241# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
242# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
243# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
244#endif
245
327c3667
GS		 246#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
247 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
248 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 249/* The Hard Way. */
327c3667 250STATIC int
7f4774ae 251S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 252{
5ff3f7a4
GS		 253 Uid_t ruid = getuid();
254 Uid_t euid = geteuid();
255 Gid_t rgid = getgid();
256 Gid_t egid = getegid();
257 int res;
258
146174a9 259 LOCK_CRED_MUTEX;
5ff3f7a4 260#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 261 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 262#else
263#ifdef HAS_SETREUID
264 if (setreuid(euid, ruid))
265#else
266#ifdef HAS_SETRESUID
267 if (setresuid(euid, ruid, (Uid_t)-1))
268#endif
269#endif
cea2e8a9 270 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 271#endif
272
273#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 274 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 275#else
276#ifdef HAS_SETREGID
277 if (setregid(egid, rgid))
278#else
279#ifdef HAS_SETRESGID
280 if (setresgid(egid, rgid, (Gid_t)-1))
281#endif
282#endif
cea2e8a9 283 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 284#endif
285
286 res = access(path, mode);
287
288#ifdef HAS_SETREUID
289 if (setreuid(ruid, euid))
290#else
291#ifdef HAS_SETRESUID
292 if (setresuid(ruid, euid, (Uid_t)-1))
293#endif
294#endif
cea2e8a9 295 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 296
297#ifdef HAS_SETREGID
298 if (setregid(rgid, egid))
299#else
300#ifdef HAS_SETRESGID
301 if (setresgid(rgid, egid, (Gid_t)-1))
302#endif
303#endif
cea2e8a9 304 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 305 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 306
307 return res;
308}
309# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
310# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
311# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
312#endif
313
314#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 315/* With it or without it: anyway you get a warning: either that
316 it is unused, or it is declared static and never defined.
317 */
327c3667 318STATIC int
7f4774ae 319S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 320{
5d7488b2
AL		 321 (void)path;
322 (void)mode;
cea2e8a9 323 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 324 /*NOTREACHED*/
325 return -1;
326}
327#endif
328
a0d0e21e
LW		 329PP(pp_backtick)
330{
39644a26 331 dSP; dTARGET;
760ac839 332 PerlIO *fp;
1b6737cc 333 const char * const tmps = POPpconstx;
f54cb97a 334 const I32 gimme = GIMME_V;
e1ec3a88 335 const char *mode = "r";
54310121 336
a0d0e21e 337 TAINT_PROPER("``");
16fe6d59
GS		 338 if (PL_op->op_private & OPpOPEN_IN_RAW)
339 mode = "rb";
340 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
341 mode = "rt";
2fbb330f 342 fp = PerlProc_popen(tmps, mode);
a0d0e21e 343 if (fp) {
e1ec3a88 344 const char *type = NULL;
ac27b0f5 345 if (PL_curcop->cop_io) {
e62f0680 346 type = SvPV_nolen_const(PL_curcop->cop_io);
ac27b0f5 347 }
ac27b0f5
NIS		 348 if (type && *type)
349 PerlIO_apply_layers(aTHX_ fp,mode,type);
350
54310121 351 if (gimme == G_VOID) {
96827780
MB		 352 char tmpbuf[256];
353 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 354 ;
355 }
356 else if (gimme == G_SCALAR) {
75af1a9c
DM		 357 ENTER;
358 SAVESPTR(PL_rs);
fa326138 359 PL_rs = &PL_sv_undef;
c69006e4 360 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e 361 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
a0d0e21e 362 ;
75af1a9c 363 LEAVE;
a0d0e21e 364 XPUSHs(TARG);
aa689395 365 SvTAINTED_on(TARG);
a0d0e21e
LW		 366 }
367 else {
a0d0e21e 368 for (;;) {
1b6737cc 369 SV * const sv = NEWSV(56, 79);
a0d0e21e
LW		 370 if (sv_gets(sv, fp, 0) == Nullch) {
371 SvREFCNT_dec(sv);
372 break;
373 }
374 XPUSHs(sv_2mortal(sv));
375 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 376 SvPV_shrink_to_cur(sv);
a0d0e21e 377 }
aa689395 378 SvTAINTED_on(sv);
a0d0e21e
LW		 379 }
380 }
2fbb330f 381 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
aa689395 382 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 383 }
384 else {
37038d91 385 STATUS_NATIVE_CHILD_SET(-1);
54310121 386 if (gimme == G_SCALAR)
a0d0e21e
LW		 387 RETPUSHUNDEF;
388 }
389
390 RETURN;
391}
392
393PP(pp_glob)
394{
27da23d5 395 dVAR;
a0d0e21e 396 OP *result;
f5284f61
IZ		 397 tryAMAGICunTARGET(iter, -1);
398
71686f12
GS		 399 /* Note that we only ever get here if File::Glob fails to load
400 * without at the same time croaking, for some reason, or if
401 * perl was built with PERL_EXTERNAL_GLOB */
402
a0d0e21e 403 ENTER;
a0d0e21e 404
c90c0ff4 405#ifndef VMS
3280af22 406 if (PL_tainting) {
7bac28a0 407 /*
408 * The external globbing program may use things we can't control,
409 * so for security reasons we must assume the worst.
410 */
411 TAINT;
22c35a8c 412 taint_proper(PL_no_security, "glob");
7bac28a0 413 }
c90c0ff4 414#endif /* !VMS */
7bac28a0 415
3280af22
NIS		 416 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
417 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 418
3280af22 419 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 420 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 421#ifndef DOSISH
422#ifndef CSH
6b88bc9c 423 *SvPVX(PL_rs) = '\n';
a0d0e21e 424#endif /* !CSH */
55497cff 425#endif /* !DOSISH */
c07a80fd 426
a0d0e21e
LW		 427 result = do_readline();
428 LEAVE;
429 return result;
430}
431
a0d0e21e
LW		 432PP(pp_rcatline)
433{
146174a9 434 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 435 return do_readline();
436}
437
438PP(pp_warn)
439{
39644a26 440 dSP; dMARK;
06bf62c7 441 SV *tmpsv;
e1ec3a88 442 const char *tmps;
06bf62c7 443 STRLEN len;
a0d0e21e
LW		 444 if (SP - MARK != 1) {
445 dTARGET;
3280af22 446 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 447 tmpsv = TARG;
a0d0e21e
LW		 448 SP = MARK + 1;
449 }
450 else {
06bf62c7 451 tmpsv = TOPs;
a0d0e21e 452 }
e62f0680 453 tmps = SvPV_const(tmpsv, len);
7b102d90 454 if ((!tmps || !len) && PL_errgv) {
1b6737cc 455 SV * const error = ERRSV;
862a34c6 456 SvUPGRADE(error, SVt_PV);
4e6ea2c3
GS		 457 if (SvPOK(error) && SvCUR(error))
458 sv_catpv(error, "\t...caught");
06bf62c7 459 tmpsv = error;
e62f0680 460 tmps = SvPV_const(tmpsv, len);
a0d0e21e 461 }
06bf62c7
GS		 462 if (!tmps || !len)
463 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
464
cb50131a 465 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 466 RETSETYES;
467}
468
469PP(pp_die)
470{
39644a26 471 dSP; dMARK;
e1ec3a88 472 const char *tmps;
06bf62c7
GS		 473 SV *tmpsv;
474 STRLEN len;
475 bool multiarg = 0;
96e176bf
CL		 476#ifdef VMS
477 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
478#endif
a0d0e21e
LW		 479 if (SP - MARK != 1) {
480 dTARGET;
3280af22 481 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 482 tmpsv = TARG;
5c144d81 483 tmps = SvPV_const(tmpsv, len);
06bf62c7 484 multiarg = 1;
a0d0e21e
LW		 485 SP = MARK + 1;
486 }
487 else {
4e6ea2c3 488 tmpsv = TOPs;
5c144d81 489 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
a0d0e21e 490 }
06bf62c7 491 if (!tmps || !len) {
4e6ea2c3 492 SV *error = ERRSV;
862a34c6 493 SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 494 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
495 if (!multiarg)
4e6ea2c3 496 SvSetSV(error,tmpsv);
06bf62c7 497 else if (sv_isobject(error)) {
05423cc9
GS		 498 HV *stash = SvSTASH(SvRV(error));
499 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
500 if (gv) {
146174a9 501 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 502 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 503 EXTEND(SP, 3);
504 PUSHMARK(SP);
505 PUSHs(error);
506 PUSHs(file);
507 PUSHs(line);
508 PUTBACK;
864dbfa3
GS		 509 call_sv((SV*)GvCV(gv),
510 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 511 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 512 }
513 }
c3bdd826 514 DIE(aTHX_ Nullch);
4e6ea2c3
GS		 515 }
516 else {
517 if (SvPOK(error) && SvCUR(error))
518 sv_catpv(error, "\t...propagated");
06bf62c7 519 tmpsv = error;
dc8d642c
DM		 520 if (SvOK(tmpsv))
521 tmps = SvPV_const(tmpsv, len);
522 else
523 tmps = Nullch;
4e6ea2c3 524 }
a0d0e21e 525 }
06bf62c7
GS		 526 if (!tmps || !len)
527 tmpsv = sv_2mortal(newSVpvn("Died", 4));
528
cb50131a 529 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 530}
531
532/* I/O. */
533
534PP(pp_open)
535{
27da23d5 536 dVAR; dSP;
a567e93b
NIS		 537 dMARK; dORIGMARK;
538 dTARGET;
a0d0e21e
LW		 539 GV *gv;
540 SV *sv;
5b468f54 541 IO *io;
5c144d81 542 const char *tmps;
a0d0e21e 543 STRLEN len;
4592e6ca 544 MAGIC *mg;
a567e93b 545 bool ok;
a0d0e21e 546
a567e93b 547 gv = (GV *)*++MARK;
5f05dabc 548 if (!isGV(gv))
cea2e8a9 549 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 550 if ((io = GvIOp(gv)))
36477c24 551 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 552
5b468f54 553 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 554 /* Method's args are same as ours ... */
555 /* ... except handle is replaced by the object */
5b468f54 556 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 557 PUSHMARK(MARK);
4592e6ca
NIS		 558 PUTBACK;
559 ENTER;
864dbfa3 560 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 561 LEAVE;
562 SPAGAIN;
563 RETURN;
564 }
565
a567e93b
NIS		 566 if (MARK < SP) {
567 sv = *++MARK;
568 }
569 else {
35a08ec7 570 sv = GvSVn(gv);
a567e93b
NIS		 571 }
572
5c144d81 573 tmps = SvPV_const(sv, len);
2fbb330f 574 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 575 SP = ORIGMARK;
576 if (ok)
3280af22
NIS		 577 PUSHi( (I32)PL_forkprocess );
578 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 579 PUSHi(0);
580 else
581 RETPUSHUNDEF;
582 RETURN;
583}
584
585PP(pp_close)
586{
27da23d5 587 dVAR; dSP;
a0d0e21e 588 GV *gv;
5b468f54 589 IO *io;
1d603a67 590 MAGIC *mg;
a0d0e21e
LW		 591
592 if (MAXARG == 0)
3280af22 593 gv = PL_defoutgv;
a0d0e21e
LW		 594 else
595 gv = (GV*)POPs;
1d603a67 596
5b468f54
AMS		 597 if (gv && (io = GvIO(gv))
598 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
599 {
1d603a67 600 PUSHMARK(SP);
5b468f54 601 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 602 PUTBACK;
603 ENTER;
864dbfa3 604 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 605 LEAVE;
606 SPAGAIN;
607 RETURN;
608 }
a0d0e21e 609 EXTEND(SP, 1);
54310121 610 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 611 RETURN;
612}
613
614PP(pp_pipe_op)
615{
a0d0e21e 616#ifdef HAS_PIPE
9cad6237 617 dSP;
a0d0e21e
LW		 618 GV *rgv;
619 GV *wgv;
620 register IO *rstio;
621 register IO *wstio;
622 int fd[2];
623
624 wgv = (GV*)POPs;
625 rgv = (GV*)POPs;
626
627 if (!rgv || !wgv)
628 goto badexit;
629
4633a7c4 630 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 631 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 632 rstio = GvIOn(rgv);
633 wstio = GvIOn(wgv);
634
635 if (IoIFP(rstio))
636 do_close(rgv, FALSE);
637 if (IoIFP(wstio))
638 do_close(wgv, FALSE);
639
6ad3d225 640 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 641 goto badexit;
642
460c8493
IZ		 643 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
644 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 645 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 646 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 647 IoTYPE(rstio) = IoTYPE_RDONLY;
648 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 649
650 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 651 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 652 else PerlLIO_close(fd[0]);
760ac839 653 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 654 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 655 goto badexit;
656 }
4771b018
GS		 657#if defined(HAS_FCNTL) && defined(F_SETFD)
658 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
659 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
660#endif
a0d0e21e
LW		 661 RETPUSHYES;
662
663badexit:
664 RETPUSHUNDEF;
665#else
cea2e8a9 666 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 667#endif
668}
669
670PP(pp_fileno)
671{
27da23d5 672 dVAR; dSP; dTARGET;
a0d0e21e
LW		 673 GV *gv;
674 IO *io;
760ac839 675 PerlIO *fp;
4592e6ca
NIS		 676 MAGIC *mg;
677
a0d0e21e
LW		 678 if (MAXARG < 1)
679 RETPUSHUNDEF;
680 gv = (GV*)POPs;
4592e6ca 681
5b468f54
AMS		 682 if (gv && (io = GvIO(gv))
683 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
684 {
4592e6ca 685 PUSHMARK(SP);
5b468f54 686 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 687 PUTBACK;
688 ENTER;
864dbfa3 689 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 690 LEAVE;
691 SPAGAIN;
692 RETURN;
693 }
694
c289d2f7
JH		 695 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
696 /* Can't do this because people seem to do things like
697 defined(fileno($foo)) to check whether $foo is a valid fh.
698 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
699 report_evil_fh(gv, io, PL_op->op_type);
700 */
a0d0e21e 701 RETPUSHUNDEF;
c289d2f7
JH		 702 }
703
760ac839 704 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 705 RETURN;
706}
707
708PP(pp_umask)
709{
27da23d5 710 dSP;
d7e492a4 711#ifdef HAS_UMASK
27da23d5 712 dTARGET;
761237fe 713 Mode_t anum;
a0d0e21e 714
a0d0e21e 715 if (MAXARG < 1) {
6ad3d225
GS		 716 anum = PerlLIO_umask(0);
717 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 718 }
719 else
6ad3d225 720 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 721 TAINT_PROPER("umask");
722 XPUSHi(anum);
723#else
a0288114 724 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 725 * Otherwise it's harmless and more useful to just return undef
726 * since 'group' and 'other' concepts probably don't exist here. */
727 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 728 DIE(aTHX_ "umask not implemented");
6b88bc9c 729 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 730#endif
731 RETURN;
732}
733
734PP(pp_binmode)
735{
27da23d5 736 dVAR; dSP;
a0d0e21e
LW		 737 GV *gv;
738 IO *io;
760ac839 739 PerlIO *fp;
4592e6ca 740 MAGIC *mg;
16fe6d59 741 SV *discp = Nullsv;
a0d0e21e
LW		 742
743 if (MAXARG < 1)
744 RETPUSHUNDEF;
60382766 745 if (MAXARG > 1) {
16fe6d59 746 discp = POPs;
60382766 747 }
a0d0e21e 748
301e8125 749 gv = (GV*)POPs;
4592e6ca 750
5b468f54
AMS		 751 if (gv && (io = GvIO(gv))
752 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
753 {
4592e6ca 754 PUSHMARK(SP);
5b468f54 755 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 756 if (discp)
757 XPUSHs(discp);
4592e6ca
NIS		 758 PUTBACK;
759 ENTER;
864dbfa3 760 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 761 LEAVE;
762 SPAGAIN;
763 RETURN;
764 }
a0d0e21e
LW		 765
766 EXTEND(SP, 1);
50f846a7 767 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 768 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
769 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 770 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 771 RETPUSHUNDEF;
772 }
a0d0e21e 773
40d98b49 774 PUTBACK;
60382766 775 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 776 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 777 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
778 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
779 mode_from_discipline(discp),
e62f0680 780 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 781 SPAGAIN;
782 RETPUSHUNDEF;
783 }
784 }
40d98b49 785 SPAGAIN;
a0d0e21e 786 RETPUSHYES;
40d98b49
JH		 787 }
788 else {
789 SPAGAIN;
a0d0e21e 790 RETPUSHUNDEF;
40d98b49 791 }
a0d0e21e
LW		 792}
793
794PP(pp_tie)
795{
27da23d5 796 dVAR; dSP; dMARK;
a0d0e21e
LW		 797 SV *varsv;
798 HV* stash;
799 GV *gv;
a0d0e21e 800 SV *sv;
1df70142 801 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 802 const char *methname;
14befaf4 803 int how = PERL_MAGIC_tied;
e336de0d 804 U32 items;
a0d0e21e 805
e336de0d 806 varsv = *++MARK;
6b05c17a
NIS		 807 switch(SvTYPE(varsv)) {
808 case SVt_PVHV:
809 methname = "TIEHASH";
bfcb3514 810 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 811 break;
812 case SVt_PVAV:
813 methname = "TIEARRAY";
814 break;
815 case SVt_PVGV:
7fb37951
AMS		 816#ifdef GV_UNIQUE_CHECK
817 if (GvUNIQUE((GV*)varsv)) {
818 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 819 }
820#endif
6b05c17a 821 methname = "TIEHANDLE";
14befaf4 822 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 823 /* For tied filehandles, we apply tiedscalar magic to the IO
824 slot of the GP rather than the GV itself. AMS 20010812 */
825 if (!GvIOp(varsv))
826 GvIOp(varsv) = newIO();
827 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 828 break;
829 default:
830 methname = "TIESCALAR";
14befaf4 831 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 832 break;
833 }
e336de0d
GS		 834 items = SP - MARK++;
835 if (sv_isobject(*MARK)) {
6b05c17a 836 ENTER;
e788e7d3 837 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 838 PUSHMARK(SP);
eb160463 839 EXTEND(SP,(I32)items);
e336de0d
GS		 840 while (items--)
841 PUSHs(*MARK++);
842 PUTBACK;
864dbfa3 843 call_method(methname, G_SCALAR);
301e8125 844 }
6b05c17a 845 else {
864dbfa3 846 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 847 * perhaps to get different error message ?
848 */
e336de0d 849 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 850 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 851 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
852 methname, *MARK);
6b05c17a
NIS		 853 }
854 ENTER;
e788e7d3 855 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 856 PUSHMARK(SP);
eb160463 857 EXTEND(SP,(I32)items);
e336de0d
GS		 858 while (items--)
859 PUSHs(*MARK++);
860 PUTBACK;
864dbfa3 861 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 862 }
a0d0e21e
LW		 863 SPAGAIN;
864
865 sv = TOPs;
d3acc0f7 866 POPSTACK;
a0d0e21e 867 if (sv_isobject(sv)) {
33c27489 868 sv_unmagic(varsv, how);
ae21d580 869 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 870 if (varsv == SvRV(sv) &&
d87ebaca
YST		 871 (SvTYPE(varsv) == SVt_PVAV ||
872 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 873 Perl_croak(aTHX_
874 "Self-ties of arrays and hashes are not supported");
d87ebaca 875 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 876 }
877 LEAVE;
3280af22 878 SP = PL_stack_base + markoff;
a0d0e21e
LW		 879 PUSHs(sv);
880 RETURN;
881}
882
883PP(pp_untie)
884{
27da23d5 885 dVAR; dSP;
5b468f54 886 MAGIC *mg;
33c27489 887 SV *sv = POPs;
1df70142 888 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 890
5b468f54
AMS		 891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
892 RETPUSHYES;
893
65eba18f 894 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 895 SV * const obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 896 GV *gv;
897 CV *cv = NULL;
fa2b88e0
JS		 898 if (obj) {
899 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
900 isGV(gv) && (cv = GvCV(gv))) {
901 PUSHMARK(SP);
902 XPUSHs(SvTIED_obj((SV*)gv, mg));
903 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
904 PUTBACK;
905 ENTER;
906 call_sv((SV *)cv, G_VOID);
907 LEAVE;
908 SPAGAIN;
909 }
041457d9 910 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
9014280d 911 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 912 "untie attempted while %"UVuf" inner references still exist",
913 (UV)SvREFCNT(obj) - 1 ) ;
914 }
cbdc8872 915 }
916 }
38193a09 917 sv_unmagic(sv, how) ;
55497cff 918 RETPUSHYES;
a0d0e21e
LW		 919}
920
c07a80fd 921PP(pp_tied)
922{
39644a26 923 dSP;
1b6737cc 924 const MAGIC *mg;
33c27489 925 SV *sv = POPs;
1df70142 926 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 927 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 928
929 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
930 RETPUSHUNDEF;
c07a80fd 931
155aba94 932 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 933 SV *osv = SvTIED_obj(sv, mg);
934 if (osv == mg->mg_obj)
935 osv = sv_mortalcopy(osv);
936 PUSHs(osv);
937 RETURN;
c07a80fd 938 }
c07a80fd 939 RETPUSHUNDEF;
940}
941
a0d0e21e
LW		 942PP(pp_dbmopen)
943{
27da23d5 944 dVAR; dSP;
a0d0e21e
LW		 945 dPOPPOPssrl;
946 HV* stash;
947 GV *gv;
a0d0e21e
LW		 948 SV *sv;
949
1b6737cc 950 HV * const hv = (HV*)POPs;
a0d0e21e 951
3280af22 952 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 953 sv_setpv(sv, "AnyDBM_File");
954 stash = gv_stashsv(sv, FALSE);
8ebc5c01 955 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 956 PUTBACK;
864dbfa3 957 require_pv("AnyDBM_File.pm");
a0d0e21e 958 SPAGAIN;
8ebc5c01 959 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 960 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 961 }
962
57d3b86d 963 ENTER;
924508f0 964 PUSHMARK(SP);
6b05c17a 965
924508f0 966 EXTEND(SP, 5);
a0d0e21e
LW		 967 PUSHs(sv);
968 PUSHs(left);
969 if (SvIV(right))
b448e4fe 970 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 971 else
b448e4fe 972 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 973 PUSHs(right);
57d3b86d 974 PUTBACK;
864dbfa3 975 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 976 SPAGAIN;
977
978 if (!sv_isobject(TOPs)) {
924508f0
GS		 979 SP--;
980 PUSHMARK(SP);
a0d0e21e
LW		 981 PUSHs(sv);
982 PUSHs(left);
b448e4fe 983 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 984 PUSHs(right);
a0d0e21e 985 PUTBACK;
864dbfa3 986 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 987 SPAGAIN;
988 }
989
6b05c17a 990 if (sv_isobject(TOPs)) {
14befaf4
DM		 991 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
992 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 993 }
a0d0e21e
LW		 994 LEAVE;
995 RETURN;
996}
997
998PP(pp_dbmclose)
999{
cea2e8a9 1000 return pp_untie();
a0d0e21e
LW		 1001}
1002
1003PP(pp_sselect)
1004{
a0d0e21e 1005#ifdef HAS_SELECT
9cad6237 1006 dSP; dTARGET;
a0d0e21e
LW		 1007 register I32 i;
1008 register I32 j;
1009 register char *s;
1010 register SV *sv;
65202027 1011 NV value;
a0d0e21e
LW		 1012 I32 maxlen = 0;
1013 I32 nfound;
1014 struct timeval timebuf;
1015 struct timeval *tbuf = &timebuf;
1016 I32 growsize;
1017 char *fd_sets[4];
1018#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1019 I32 masksize;
1020 I32 offset;
1021 I32 k;
1022
1023# if BYTEORDER & 0xf0000
1024# define ORDERBYTE (0x88888888 - BYTEORDER)
1025# else
1026# define ORDERBYTE (0x4444 - BYTEORDER)
1027# endif
1028
1029#endif
1030
1031 SP -= 4;
1032 for (i = 1; i <= 3; i++) {
729c079f
NC		 1033 SV *sv = SP[i];
1034 if (SvOK(sv) && SvREADONLY(sv)) {
1035 if (SvIsCOW(sv))
1036 sv_force_normal_flags(sv, 0);
1037 if (SvREADONLY(sv))
1038 DIE(aTHX_ PL_no_modify);
1039 }
4ef2275c 1040 if (!SvOK(sv))
a0d0e21e 1041 continue;
4ef2275c
GA		 1042 if (!SvPOK(sv)) {
1043 if (ckWARN(WARN_MISC))
1044 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1045 SvPV_force_nolen(sv); /* force string conversion */
1046 }
729c079f 1047 j = SvCUR(sv);
a0d0e21e
LW		 1048 if (maxlen < j)
1049 maxlen = j;
1050 }
1051
5ff3f7a4 1052/* little endians can use vecs directly */
e366b469 1053#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1054# ifdef NFDBITS
a0d0e21e 1055
5ff3f7a4
GS		 1056# ifndef NBBY
1057# define NBBY 8
1058# endif
a0d0e21e
LW		 1059
1060 masksize = NFDBITS / NBBY;
5ff3f7a4 1061# else
a0d0e21e 1062 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1063# endif
a0d0e21e
LW		 1064 Zero(&fd_sets[0], 4, char*);
1065#endif
1066
ad517f75
MHM		 1067# if SELECT_MIN_BITS == 1
1068 growsize = sizeof(fd_set);
1069# else
1070# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1071# undef SELECT_MIN_BITS
1072# define SELECT_MIN_BITS __FD_SETSIZE
1073# endif
e366b469
PG		 1074 /* If SELECT_MIN_BITS is greater than one we most probably will want
1075 * to align the sizes with SELECT_MIN_BITS/8 because for example
1076 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1077 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1078 * on (sets/tests/clears bits) is 32 bits. */
1079 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1080# endif
1081
a0d0e21e
LW		 1082 sv = SP[4];
1083 if (SvOK(sv)) {
1084 value = SvNV(sv);
1085 if (value < 0.0)
1086 value = 0.0;
1087 timebuf.tv_sec = (long)value;
65202027 1088 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1089 timebuf.tv_usec = (long)(value * 1000000.0);
1090 }
1091 else
1092 tbuf = Null(struct timeval*);
1093
1094 for (i = 1; i <= 3; i++) {
1095 sv = SP[i];
1096 if (!SvOK(sv)) {
1097 fd_sets[i] = 0;
1098 continue;
1099 }
4ef2275c 1100 assert(SvPOK(sv));
a0d0e21e
LW		 1101 j = SvLEN(sv);
1102 if (j < growsize) {
1103 Sv_Grow(sv, growsize);
a0d0e21e 1104 }
c07a80fd 1105 j = SvCUR(sv);
1106 s = SvPVX(sv) + j;
1107 while (++j <= growsize) {
1108 *s++ = '\0';
1109 }
1110
a0d0e21e
LW		 1111#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1112 s = SvPVX(sv);
a02a5408 1113 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1114 for (offset = 0; offset < growsize; offset += masksize) {
1115 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1116 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1117 }
1118#else
1119 fd_sets[i] = SvPVX(sv);
1120#endif
1121 }
1122
dc4c69d9
JH		 1123#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1124 /* Can't make just the (void*) conditional because that would be
1125 * cpp #if within cpp macro, and not all compilers like that. */
1126 nfound = PerlSock_select(
1127 maxlen * 8,
1128 (Select_fd_set_t) fd_sets[1],
1129 (Select_fd_set_t) fd_sets[2],
1130 (Select_fd_set_t) fd_sets[3],
1131 (void*) tbuf); /* Workaround for compiler bug. */
1132#else
6ad3d225 1133 nfound = PerlSock_select(
a0d0e21e
LW		 1134 maxlen * 8,
1135 (Select_fd_set_t) fd_sets[1],
1136 (Select_fd_set_t) fd_sets[2],
1137 (Select_fd_set_t) fd_sets[3],
1138 tbuf);
dc4c69d9 1139#endif
a0d0e21e
LW		 1140 for (i = 1; i <= 3; i++) {
1141 if (fd_sets[i]) {
1142 sv = SP[i];
1143#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1144 s = SvPVX(sv);
1145 for (offset = 0; offset < growsize; offset += masksize) {
1146 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1147 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1148 }
1149 Safefree(fd_sets[i]);
1150#endif
1151 SvSETMAGIC(sv);
1152 }
1153 }
1154
4189264e 1155 PUSHi(nfound);
a0d0e21e 1156 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1157 value = (NV)(timebuf.tv_sec) +
1158 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1159 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1160 sv_setnv(sv, value);
1161 }
1162 RETURN;
1163#else
cea2e8a9 1164 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1165#endif
1166}
1167
4633a7c4 1168void
864dbfa3 1169Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1170{
1171 if (gv)
1172 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1173 if (PL_defoutgv)
1174 SvREFCNT_dec(PL_defoutgv);
1175 PL_defoutgv = gv;
4633a7c4
LW		 1176}
1177
a0d0e21e
LW		 1178PP(pp_select)
1179{
39644a26 1180 dSP; dTARGET;
1df70142 1181 GV *egv;
4633a7c4
LW		 1182 HV *hv;
1183
1df70142 1184 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1185
3280af22 1186 egv = GvEGV(PL_defoutgv);
4633a7c4 1187 if (!egv)
3280af22 1188 egv = PL_defoutgv;
4633a7c4
LW		 1189 hv = GvSTASH(egv);
1190 if (! hv)
3280af22 1191 XPUSHs(&PL_sv_undef);
4633a7c4 1192 else {
1b6737cc 1193 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1194 if (gvp && *gvp == egv) {
f7aaccc2 1195 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1196 XPUSHTARG;
1197 }
1198 else {
1199 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1200 }
4633a7c4
LW		 1201 }
1202
1203 if (newdefout) {
ded8aa31
GS		 1204 if (!GvIO(newdefout))
1205 gv_IOadd(newdefout);
4633a7c4
LW		 1206 setdefout(newdefout);
1207 }
1208
a0d0e21e
LW		 1209 RETURN;
1210}
1211
1212PP(pp_getc)
1213{
27da23d5 1214 dVAR; dSP; dTARGET;
90133b69 1215 IO *io = NULL;
2ae324a7 1216 MAGIC *mg;
1b6737cc 1217 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1218
5b468f54
AMS		 1219 if (gv && (io = GvIO(gv))
1220 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1221 {
f54cb97a 1222 const I32 gimme = GIMME_V;
2ae324a7 1223 PUSHMARK(SP);
5b468f54 1224 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1225 PUTBACK;
1226 ENTER;
864dbfa3 1227 call_method("GETC", gimme);
2ae324a7 1228 LEAVE;
1229 SPAGAIN;
54310121 1230 if (gimme == G_SCALAR)
1231 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1232 RETURN;
1233 }
90133b69 1234 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM		 1235 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1236 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1237 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1238 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1239 RETPUSHUNDEF;
90133b69 1240 }
bbce6d69 1241 TAINT;
c69006e4 1242 sv_setpvn(TARG, " ", 1);
9bc64814 1243 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1244 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1245 /* Find out how many bytes the char needs */
aa07b2f6 1246 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1247 if (len > 1) {
1248 SvGROW(TARG,len+1);
1249 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1250 SvCUR_set(TARG,1+len);
1251 }
1252 SvUTF8_on(TARG);
1253 }
a0d0e21e
LW		 1254 PUSHTARG;
1255 RETURN;
1256}
1257
1258PP(pp_read)
1259{
cea2e8a9 1260 return pp_sysread();
a0d0e21e
LW		 1261}
1262
76e3520e 1263STATIC OP *
cea2e8a9 1264S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1265{
27da23d5 1266 dVAR;
c09156bb 1267 register PERL_CONTEXT *cx;
f54cb97a 1268 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1269
1270 ENTER;
1271 SAVETMPS;
1272
146174a9 1273 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1274 PUSHFORMAT(cx);
f39bc417 1275 cx->blk_sub.retop = retop;
fd617465
DM		 1276 SAVECOMPPAD();
1277 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1278
4633a7c4 1279 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1280 return CvSTART(cv);
1281}
1282
1283PP(pp_enterwrite)
1284{
39644a26 1285 dSP;
a0d0e21e
LW		 1286 register GV *gv;
1287 register IO *io;
1288 GV *fgv;
1289 CV *cv;
1290
1291 if (MAXARG == 0)
3280af22 1292 gv = PL_defoutgv;
a0d0e21e
LW		 1293 else {
1294 gv = (GV*)POPs;
1295 if (!gv)
3280af22 1296 gv = PL_defoutgv;
a0d0e21e
LW		 1297 }
1298 EXTEND(SP, 1);
1299 io = GvIO(gv);
1300 if (!io) {
1301 RETPUSHNO;
1302 }
1303 if (IoFMT_GV(io))
1304 fgv = IoFMT_GV(io);
1305 else
1306 fgv = gv;
1307
1308 cv = GvFORM(fgv);
a0d0e21e
LW		 1309 if (!cv) {
1310 if (fgv) {
1df70142 1311 SV * const tmpsv = sv_newmortal();
e62f0680 1312 const char *name;
43693395 1313 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1314 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1315 if (name && *name)
1316 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1317 }
cea2e8a9 1318 DIE(aTHX_ "Not a format reference");
a0d0e21e 1319 }
44a8e56a 1320 if (CvCLONE(cv))
1321 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1322
44a8e56a 1323 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1324 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1325}
1326
1327PP(pp_leavewrite)
1328{
27da23d5 1329 dVAR; dSP;
1b6737cc
AL		 1330 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1331 register IO * const io = GvIOp(gv);
1332 PerlIO * const ofp = IoOFP(io);
760ac839 1333 PerlIO *fp;
8772537c
AL		 1334 SV **newsp;
1335 I32 gimme;
c09156bb 1336 register PERL_CONTEXT *cx;
a0d0e21e 1337
760ac839 1338 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1339 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1340 if (!io || !ofp)
1341 goto forget_top;
3280af22
NIS		 1342 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1343 PL_formtarget != PL_toptarget)
a0d0e21e 1344 {
4633a7c4
LW		 1345 GV *fgv;
1346 CV *cv;
a0d0e21e
LW		 1347 if (!IoTOP_GV(io)) {
1348 GV *topgv;
a0d0e21e
LW		 1349
1350 if (!IoTOP_NAME(io)) {
1b6737cc 1351 SV *topname;
a0d0e21e
LW		 1352 if (!IoFMT_NAME(io))
1353 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1354 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1355 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1356 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1357 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1358 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1359 else
ff5bdd37 1360 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1361 }
1362 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1363 if (!topgv || !GvFORM(topgv)) {
b929a54b 1364 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1365 goto forget_top;
1366 }
1367 IoTOP_GV(io) = topgv;
1368 }
748a9306
LW		 1369 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1370 I32 lines = IoLINES_LEFT(io);
504618e9 1371 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1372 if (lines <= 0) /* Yow, header didn't even fit!!! */
1373 goto forget_top;
748a9306
LW		 1374 while (lines-- > 0) {
1375 s = strchr(s, '\n');
1376 if (!s)
1377 break;
1378 s++;
1379 }
1380 if (s) {
f54cb97a 1381 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1382 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1383 do_print(PL_formtarget, ofp);
1384 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1385 sv_chop(PL_formtarget, s);
1386 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1387 }
1388 }
a0d0e21e 1389 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1390 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1391 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1392 IoPAGE(io)++;
3280af22 1393 PL_formtarget = PL_toptarget;
748a9306 1394 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1395 fgv = IoTOP_GV(io);
1396 if (!fgv)
cea2e8a9 1397 DIE(aTHX_ "bad top format reference");
4633a7c4 1398 cv = GvFORM(fgv);
1df70142
AL		 1399 if (!cv) {
1400 SV * const sv = sv_newmortal();
b464bac0 1401 const char *name;
1df70142 1402 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1403 name = SvPV_nolen_const(sv);
2dd78f96 1404 if (name && *name)
1df70142 1405 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1406 }
1df70142
AL		 1407 /* why no:
1408 else
1409 DIE(aTHX_ "Undefined top format called");
1410 ?*/
44a8e56a 1411 if (CvCLONE(cv))
1412 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1413 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1414 }
1415
1416 forget_top:
3280af22 1417 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1418 POPFORMAT(cx);
1419 LEAVE;
1420
1421 fp = IoOFP(io);
1422 if (!fp) {
599cee73 1423 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1424 if (IoIFP(io))
1425 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1426 else if (ckWARN(WARN_CLOSED))
bc37a18f 1427 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1428 }
3280af22 1429 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1430 }
1431 else {
3280af22 1432 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1433 if (ckWARN(WARN_IO))
9014280d 1434 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1435 }
d75029d0 1436 if (!do_print(PL_formtarget, fp))
3280af22 1437 PUSHs(&PL_sv_no);
a0d0e21e 1438 else {
3280af22
NIS		 1439 FmLINES(PL_formtarget) = 0;
1440 SvCUR_set(PL_formtarget, 0);
1441 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1442 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1443 (void)PerlIO_flush(fp);
3280af22 1444 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1445 }
1446 }
9cbac4c7 1447 /* bad_ofp: */
3280af22 1448 PL_formtarget = PL_bodytarget;
a0d0e21e 1449 PUTBACK;
29033a8a
SH		 1450 PERL_UNUSED_VAR(newsp);
1451 PERL_UNUSED_VAR(gimme);
f39bc417 1452 return cx->blk_sub.retop;
a0d0e21e
LW		 1453}
1454
1455PP(pp_prtf)
1456{
27da23d5 1457 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1458 GV *gv;
1459 IO *io;
760ac839 1460 PerlIO *fp;
26db47c4 1461 SV *sv;
46fc3d4c 1462 MAGIC *mg;
a0d0e21e 1463
533c011a 1464 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1465 gv = (GV*)*++MARK;
1466 else
3280af22 1467 gv = PL_defoutgv;
46fc3d4c 1468
5b468f54
AMS		 1469 if (gv && (io = GvIO(gv))
1470 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1471 {
46fc3d4c 1472 if (MARK == ORIGMARK) {
4352c267 1473 MEXTEND(SP, 1);
46fc3d4c 1474 ++MARK;
1475 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1476 ++SP;
1477 }
1478 PUSHMARK(MARK - 1);
5b468f54 1479 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1480 PUTBACK;
1481 ENTER;
864dbfa3 1482 call_method("PRINTF", G_SCALAR);
46fc3d4c 1483 LEAVE;
1484 SPAGAIN;
1485 MARK = ORIGMARK + 1;
1486 *MARK = *SP;
1487 SP = MARK;
1488 RETURN;
1489 }
1490
26db47c4 1491 sv = NEWSV(0,0);
a0d0e21e 1492 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1493 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1494 report_evil_fh(gv, io, PL_op->op_type);
93189314 1495 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1496 goto just_say_no;
1497 }
1498 else if (!(fp = IoOFP(io))) {
599cee73 1499 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1500 if (IoIFP(io))
1501 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1502 else if (ckWARN(WARN_CLOSED))
bc37a18f 1503 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1504 }
93189314 1505 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1506 goto just_say_no;
1507 }
1508 else {
1509 do_sprintf(sv, SP - MARK, MARK + 1);
1510 if (!do_print(sv, fp))
1511 goto just_say_no;
1512
1513 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1514 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1515 goto just_say_no;
1516 }
1517 SvREFCNT_dec(sv);
1518 SP = ORIGMARK;
3280af22 1519 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1520 RETURN;
1521
1522 just_say_no:
1523 SvREFCNT_dec(sv);
1524 SP = ORIGMARK;
3280af22 1525 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1526 RETURN;
1527}
1528
c07a80fd 1529PP(pp_sysopen)
1530{
39644a26 1531 dSP;
1df70142
AL		 1532 const int perm = (MAXARG > 3) ? POPi : 0666;
1533 const int mode = POPi;
1b6737cc
AL		 1534 SV * const sv = POPs;
1535 GV * const gv = (GV *)POPs;
1536 STRLEN len;
c07a80fd 1537
4592e6ca 1538 /* Need TIEHANDLE method ? */
1b6737cc 1539 const char * const tmps = SvPV_const(sv, len);
e62f0680 1540 /* FIXME? do_open should do const */
2fbb330f 1541 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1542 IoLINES(GvIOp(gv)) = 0;
3280af22 1543 PUSHs(&PL_sv_yes);
c07a80fd 1544 }
1545 else {
3280af22 1546 PUSHs(&PL_sv_undef);
c07a80fd 1547 }
1548 RETURN;
1549}
1550
a0d0e21e
LW		 1551PP(pp_sysread)
1552{
27da23d5 1553 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1554 int offset;
a0d0e21e
LW		 1555 IO *io;
1556 char *buffer;
5b54f415 1557 SSize_t length;
eb5c063a 1558 SSize_t count;
1e422769 1559 Sock_size_t bufsize;
748a9306 1560 SV *bufsv;
a0d0e21e 1561 STRLEN blen;
eb5c063a 1562 int fp_utf8;
1dd30107
NC		 1563 int buffer_utf8;
1564 SV *read_target;
eb5c063a
NIS		 1565 Size_t got = 0;
1566 Size_t wanted;
1d636c13 1567 bool charstart = FALSE;
87330c3c
JH		 1568 STRLEN charskip = 0;
1569 STRLEN skip = 0;
a0d0e21e 1570
1b6737cc 1571 GV * const gv = (GV*)*++MARK;
5b468f54 1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1573 && gv && (io = GvIO(gv)) )
137443ea 1574 {
1b6737cc
AL		 1575 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1576 if (mg) {
1577 SV *sv;
1578 PUSHMARK(MARK-1);
1579 *MARK = SvTIED_obj((SV*)io, mg);
1580 ENTER;
1581 call_method("READ", G_SCALAR);
1582 LEAVE;
1583 SPAGAIN;
1584 sv = POPs;
1585 SP = ORIGMARK;
1586 PUSHs(sv);
1587 RETURN;
1588 }
2ae324a7 1589 }
1590
a0d0e21e
LW		 1591 if (!gv)
1592 goto say_undef;
748a9306 1593 bufsv = *++MARK;
ff68c719 1594 if (! SvOK(bufsv))
1595 sv_setpvn(bufsv, "", 0);
a0d0e21e 1596 length = SvIVx(*++MARK);
748a9306 1597 SETERRNO(0,0);
a0d0e21e
LW		 1598 if (MARK < SP)
1599 offset = SvIVx(*++MARK);
1600 else
1601 offset = 0;
1602 io = GvIO(gv);
b5fe5ca2
SR		 1603 if (!io || !IoIFP(io)) {
1604 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1605 report_evil_fh(gv, io, PL_op->op_type);
1606 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1607 goto say_undef;
b5fe5ca2 1608 }
0064a8a9 1609 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1610 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1611 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1612 SvUTF8_on(bufsv);
9b9d7ce8 1613 buffer_utf8 = 0;
7d59b7e4
NIS		 1614 }
1615 else {
1616 buffer = SvPV_force(bufsv, blen);
1dd30107 1617 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1618 }
1619 if (length < 0)
1620 DIE(aTHX_ "Negative length");
eb5c063a 1621 wanted = length;
7d59b7e4 1622
d0965105
JH		 1623 charstart = TRUE;
1624 charskip = 0;
87330c3c 1625 skip = 0;
d0965105 1626
a0d0e21e 1627#ifdef HAS_SOCKET
533c011a 1628 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1629 char namebuf[MAXPATHLEN];
17a8c7ba 1630#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1631 bufsize = sizeof (struct sockaddr_in);
1632#else
46fc3d4c 1633 bufsize = sizeof namebuf;
490ab354 1634#endif
abf95952
IZ		 1635#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1636 if (bufsize >= 256)
1637 bufsize = 255;
1638#endif
eb160463 1639 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1640 /* 'offset' means 'flags' here */
eb5c063a 1641 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1642 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1643 if (count < 0)
a0d0e21e 1644 RETPUSHUNDEF;
4107cc59
OF		 1645#ifdef EPOC
1646 /* Bogus return without padding */
1647 bufsize = sizeof (struct sockaddr_in);
1648#endif
eb5c063a 1649 SvCUR_set(bufsv, count);
748a9306
LW		 1650 *SvEND(bufsv) = '\0';
1651 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1652 if (fp_utf8)
1653 SvUTF8_on(bufsv);
748a9306 1654 SvSETMAGIC(bufsv);
aac0dd9a 1655 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1656 if (!(IoFLAGS(io) & IOf_UNTAINT))
1657 SvTAINTED_on(bufsv);
a0d0e21e 1658 SP = ORIGMARK;
46fc3d4c 1659 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1660 PUSHs(TARG);
1661 RETURN;
1662 }
1663#else
911d147d 1664 if (PL_op->op_type == OP_RECV)
cea2e8a9 1665 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1666#endif
eb5c063a
NIS		 1667 if (DO_UTF8(bufsv)) {
1668 /* offset adjust in characters not bytes */
1669 blen = sv_len_utf8(bufsv);
7d59b7e4 1670 }
bbce6d69 1671 if (offset < 0) {
eb160463 1672 if (-offset > (int)blen)
cea2e8a9 1673 DIE(aTHX_ "Offset outside string");
bbce6d69 1674 offset += blen;
1675 }
eb5c063a
NIS		 1676 if (DO_UTF8(bufsv)) {
1677 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1678 if (offset >= (int)blen)
1679 offset += SvCUR(bufsv) - blen;
1680 else
1681 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1682 }
1683 more_bytes:
cd52b7b2 1684 bufsize = SvCUR(bufsv);
1dd30107
NC		 1685 /* Allocating length + offset + 1 isn't perfect in the case of reading
1686 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1687 unduly.
1688 (should be 2 * length + offset + 1, or possibly something longer if
1689 PL_encoding is true) */
eb160463 1690 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1691 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1692 Zero(buffer+bufsize, offset-bufsize, char);
1693 }
eb5c063a 1694 buffer = buffer + offset;
1dd30107
NC		 1695 if (!buffer_utf8) {
1696 read_target = bufsv;
1697 } else {
1698 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1699 concatenate it to the current buffer. */
1700
1701 /* Truncate the existing buffer to the start of where we will be
1702 reading to: */
1703 SvCUR_set(bufsv, offset);
1704
1705 read_target = sv_newmortal();
862a34c6 1706 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1707 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1708 }
eb5c063a 1709
533c011a 1710 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1711#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1712 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1713 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1714 buffer, length, 0);
a7092146
GS		 1715 }
1716 else
1717#endif
1718 {
eb5c063a
NIS		 1719 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1720 buffer, length);
a7092146 1721 }
a0d0e21e
LW		 1722 }
1723 else
1724#ifdef HAS_SOCKET__bad_code_maybe
50952442 1725 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1726 char namebuf[MAXPATHLEN];
490ab354
JH		 1727#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1728 bufsize = sizeof (struct sockaddr_in);
1729#else
46fc3d4c 1730 bufsize = sizeof namebuf;
490ab354 1731#endif
eb5c063a 1732 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1733 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1734 }
1735 else
1736#endif
3b02c43c 1737 {
eb5c063a
NIS		 1738 count = PerlIO_read(IoIFP(io), buffer, length);
1739 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1740 if (count == 0 && PerlIO_error(IoIFP(io)))
1741 count = -1;
3b02c43c 1742 }
eb5c063a 1743 if (count < 0) {
a00b5bd3 1744 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1745 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1746 goto say_undef;
af8c498a 1747 }
aa07b2f6 1748 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1749 *SvEND(read_target) = '\0';
1750 (void)SvPOK_only(read_target);
0064a8a9 1751 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1752 /* Look at utf8 we got back and count the characters */
1df70142 1753 const char *bend = buffer + count;
eb5c063a 1754 while (buffer < bend) {
d0965105
JH		 1755 if (charstart) {
1756 skip = UTF8SKIP(buffer);
1757 charskip = 0;
1758 }
1759 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1760 /* partial character - try for rest of it */
1761 length = skip - (bend-buffer);
aa07b2f6 1762 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1763 charstart = FALSE;
1764 charskip += count;
eb5c063a
NIS		 1765 goto more_bytes;
1766 }
1767 else {
1768 got++;
1769 buffer += skip;
d0965105
JH		 1770 charstart = TRUE;
1771 charskip = 0;
eb5c063a
NIS		 1772 }
1773 }
1774 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1775 provided amount read (count) was what was requested (length)
1776 */
1777 if (got < wanted && count == length) {
d0965105 1778 length = wanted - got;
aa07b2f6 1779 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1780 goto more_bytes;
1781 }
1782 /* return value is character count */
1783 count = got;
1784 SvUTF8_on(bufsv);
1785 }
1dd30107
NC		 1786 else if (buffer_utf8) {
1787 /* Let svcatsv upgrade the bytes we read in to utf8.
1788 The buffer is a mortal so will be freed soon. */
1789 sv_catsv_nomg(bufsv, read_target);
1790 }
748a9306 1791 SvSETMAGIC(bufsv);
aac0dd9a 1792 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1793 if (!(IoFLAGS(io) & IOf_UNTAINT))
1794 SvTAINTED_on(bufsv);
a0d0e21e 1795 SP = ORIGMARK;
eb5c063a 1796 PUSHi(count);
a0d0e21e
LW		 1797 RETURN;
1798
1799 say_undef:
1800 SP = ORIGMARK;
1801 RETPUSHUNDEF;
1802}
1803
1804PP(pp_syswrite)
1805{
27da23d5 1806 dVAR; dSP;
1df70142 1807 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1808 if (items == 2) {
9f089d78 1809 SV *sv;
092bebab 1810 EXTEND(SP, 1);
9f089d78
SB		 1811 sv = sv_2mortal(newSViv(sv_len(*SP)));
1812 PUSHs(sv);
092bebab
JH		 1813 PUTBACK;
1814 }
cea2e8a9 1815 return pp_send();
a0d0e21e
LW		 1816}
1817
1818PP(pp_send)
1819{
27da23d5 1820 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1821 GV *gv;
1822 IO *io;
748a9306 1823 SV *bufsv;
83003860 1824 const char *buffer;
8c99d73e
GS		 1825 Size_t length;
1826 SSize_t retval;
a0d0e21e 1827 STRLEN blen;
1d603a67 1828 MAGIC *mg;
a0d0e21e
LW		 1829
1830 gv = (GV*)*++MARK;
14befaf4 1831 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1832 && gv && (io = GvIO(gv))
1833 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1834 {
1d603a67
GB		 1835 SV *sv;
1836
1837 PUSHMARK(MARK-1);
5b468f54 1838 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1839 ENTER;
864dbfa3 1840 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1841 LEAVE;
1842 SPAGAIN;
1843 sv = POPs;
1844 SP = ORIGMARK;
1845 PUSHs(sv);
1846 RETURN;
1847 }
a0d0e21e
LW		 1848 if (!gv)
1849 goto say_undef;
748a9306 1850 bufsv = *++MARK;
8c99d73e 1851#if Size_t_size > IVSIZE
3c001241 1852 length = (Size_t)SvNVx(*++MARK);
146174a9 1853#else
3c001241 1854 length = (Size_t)SvIVx(*++MARK);
146174a9 1855#endif
3c001241 1856 if ((SSize_t)length < 0)
cea2e8a9 1857 DIE(aTHX_ "Negative length");
748a9306 1858 SETERRNO(0,0);
a0d0e21e
LW		 1859 io = GvIO(gv);
1860 if (!io || !IoIFP(io)) {
8c99d73e 1861 retval = -1;
bc37a18f
RG		 1862 if (ckWARN(WARN_CLOSED))
1863 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1864 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1865 goto say_undef;
1866 }
1867
1868 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1869 if (!SvUTF8(bufsv)) {
1870 bufsv = sv_2mortal(newSVsv(bufsv));
1871 buffer = sv_2pvutf8(bufsv, &blen);
1872 } else
83003860 1873 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1874 }
7d59b7e4 1875 else {
4de5f5ca
JH		 1876 if (DO_UTF8(bufsv)) {
1877 /* Not modifying source SV, so making a temporary copy. */
1878 bufsv = sv_2mortal(newSVsv(bufsv));
1879 sv_utf8_downgrade(bufsv, FALSE);
1880 }
83003860 1881 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1882 }
1883
1884 if (PL_op->op_type == OP_SYSWRITE) {
1885 IV offset;
1886 if (DO_UTF8(bufsv)) {
1887 /* length and offset are in chars */
1888 blen = sv_len_utf8(bufsv);
1889 }
bbce6d69 1890 if (MARK < SP) {
a0d0e21e 1891 offset = SvIVx(*++MARK);
bbce6d69 1892 if (offset < 0) {
eb160463 1893 if (-offset > (IV)blen)
cea2e8a9 1894 DIE(aTHX_ "Offset outside string");
bbce6d69 1895 offset += blen;
eb160463 1896 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1897 DIE(aTHX_ "Offset outside string");
bbce6d69 1898 } else
a0d0e21e
LW		 1899 offset = 0;
1900 if (length > blen - offset)
1901 length = blen - offset;
7d59b7e4 1902 if (DO_UTF8(bufsv)) {
83003860 1903 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1904 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1905 }
1906 else {
1907 buffer = buffer+offset;
1908 }
a7092146 1909#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1910 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1911 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1912 buffer, length, 0);
a7092146
GS		 1913 }
1914 else
1915#endif
1916 {
94e4c244 1917 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1918 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1919 buffer, length);
a7092146 1920 }
a0d0e21e
LW		 1921 }
1922#ifdef HAS_SOCKET
1923 else if (SP > MARK) {
a0d0e21e 1924 STRLEN mlen;
1df70142 1925 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1926 /* length is really flags */
8c99d73e
GS		 1927 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1928 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1929 }
1930 else
7d59b7e4 1931 /* length is really flags */
8c99d73e 1932 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1933#else
1934 else
cea2e8a9 1935 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1936#endif
8c99d73e 1937 if (retval < 0)
a0d0e21e
LW		 1938 goto say_undef;
1939 SP = ORIGMARK;
f36eea10
JH		 1940 if (DO_UTF8(bufsv))
1941 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1942#if Size_t_size > IVSIZE
1943 PUSHn(retval);
1944#else
1945 PUSHi(retval);
1946#endif
a0d0e21e
LW		 1947 RETURN;
1948
1949 say_undef:
1950 SP = ORIGMARK;
1951 RETPUSHUNDEF;
1952}
1953
1954PP(pp_recv)
1955{
cea2e8a9 1956 return pp_sysread();
a0d0e21e
LW		 1957}
1958
1959PP(pp_eof)
1960{
27da23d5 1961 dVAR; dSP;
a0d0e21e 1962 GV *gv;
5b468f54 1963 IO *io;
4592e6ca 1964 MAGIC *mg;
a0d0e21e 1965
32da55ab 1966 if (MAXARG == 0) {
146174a9
CB		 1967 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1968 IO *io;
ed2c6b9b 1969 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1970 io = GvIO(gv);
1971 if (io && !IoIFP(io)) {
1972 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1973 IoLINES(io) = 0;
1974 IoFLAGS(io) &= ~IOf_START;
2fbb330f 1975 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1976 sv_setpvn(GvSV(gv), "-", 1);
1977 SvSETMAGIC(GvSV(gv));
1978 }
1979 else if (!nextargv(gv))
1980 RETPUSHYES;
1981 }
1982 }
1983 else
1984 gv = PL_last_in_gv; /* eof */
1985 }
a0d0e21e 1986 else
146174a9 1987 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1988
5b468f54
AMS		 1989 if (gv && (io = GvIO(gv))
1990 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1991 {
4592e6ca 1992 PUSHMARK(SP);
5b468f54 1993 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1994 PUTBACK;
1995 ENTER;
864dbfa3 1996 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1997 LEAVE;
1998 SPAGAIN;
1999 RETURN;
2000 }
2001
54310121 2002 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 2003 RETURN;
2004}
2005
2006PP(pp_tell)
2007{
27da23d5 2008 dVAR; dSP; dTARGET;
301e8125 2009 GV *gv;
5b468f54 2010 IO *io;
4592e6ca 2011 MAGIC *mg;
a0d0e21e 2012
32da55ab 2013 if (MAXARG == 0)
3280af22 2014 gv = PL_last_in_gv;
a0d0e21e 2015 else
3280af22 2016 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2017
5b468f54
AMS		 2018 if (gv && (io = GvIO(gv))
2019 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2020 {
4592e6ca 2021 PUSHMARK(SP);
5b468f54 2022 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2023 PUTBACK;
2024 ENTER;
864dbfa3 2025 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2026 LEAVE;
2027 SPAGAIN;
2028 RETURN;
2029 }
2030
146174a9
CB		 2031#if LSEEKSIZE > IVSIZE
2032 PUSHn( do_tell(gv) );
2033#else
a0d0e21e 2034 PUSHi( do_tell(gv) );
146174a9 2035#endif
a0d0e21e
LW		 2036 RETURN;
2037}
2038
2039PP(pp_seek)
2040{
cea2e8a9 2041 return pp_sysseek();
137443ea 2042}
2043
2044PP(pp_sysseek)
2045{
27da23d5 2046 dVAR; dSP;
a0d0e21e 2047 GV *gv;
5b468f54 2048 IO *io;
1df70142 2049 const int whence = POPi;
146174a9
CB		 2050#if LSEEKSIZE > IVSIZE
2051 Off_t offset = (Off_t)SvNVx(POPs);
2052#else
d9b3e12d 2053 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2054#endif
4592e6ca 2055 MAGIC *mg;
a0d0e21e 2056
3280af22 2057 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2058
5b468f54
AMS		 2059 if (gv && (io = GvIO(gv))
2060 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2061 {
4592e6ca 2062 PUSHMARK(SP);
5b468f54 2063 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2064#if LSEEKSIZE > IVSIZE
2065 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2066#else
b448e4fe 2067 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2068#endif
b448e4fe 2069 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2070 PUTBACK;
2071 ENTER;
864dbfa3 2072 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2073 LEAVE;
2074 SPAGAIN;
2075 RETURN;
2076 }
2077
533c011a 2078 if (PL_op->op_type == OP_SEEK)
8903cb82 2079 PUSHs(boolSV(do_seek(gv, offset, whence)));
2080 else {
b448e4fe
JH		 2081 Off_t sought = do_sysseek(gv, offset, whence);
2082 if (sought < 0)
146174a9
CB		 2083 PUSHs(&PL_sv_undef);
2084 else {
b448e4fe 2085 SV* sv = sought ?
146174a9 2086#if LSEEKSIZE > IVSIZE
b448e4fe 2087 newSVnv((NV)sought)
146174a9 2088#else
b448e4fe 2089 newSViv(sought)
146174a9
CB		 2090#endif
2091 : newSVpvn(zero_but_true, ZBTLEN);
2092 PUSHs(sv_2mortal(sv));
2093 }
8903cb82 2094 }
a0d0e21e
LW		 2095 RETURN;
2096}
2097
2098PP(pp_truncate)
2099{
39644a26 2100 dSP;
8c99d73e
GS		 2101 /* There seems to be no consensus on the length type of truncate()
2102 * and ftruncate(), both off_t and size_t have supporters. In
2103 * general one would think that when using large files, off_t is
2104 * at least as wide as size_t, so using an off_t should be okay. */
2105 /* XXX Configure probe for the length type of *truncate() needed XXX */
2106 Off_t len;
a0d0e21e 2107
25342a55 2108#if Off_t_size > IVSIZE
8c99d73e
GS		 2109 len = (Off_t)POPn;
2110#else
2111 len = (Off_t)POPi;
2112#endif
2113 /* Checking for length < 0 is problematic as the type might or
301e8125 2114 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2115 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2116 SETERRNO(0,0);
d05c1ba0 2117 {
d05c1ba0
JH		 2118 int result = 1;
2119 GV *tmpgv;
090bf15b
SR		 2120 IO *io;
2121
d05c1ba0 2122 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2123 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2124
090bf15b
SR		 2125 do_ftruncate_gv:
2126 if (!GvIO(tmpgv))
2127 result = 0;
d05c1ba0 2128 else {
090bf15b
SR		 2129 PerlIO *fp;
2130 io = GvIOp(tmpgv);
2131 do_ftruncate_io:
2132 TAINT_PROPER("truncate");
2133 if (!(fp = IoIFP(io))) {
2134 result = 0;
2135 }
2136 else {
2137 PerlIO_flush(fp);
cbdc8872 2138#ifdef HAS_TRUNCATE
090bf15b 2139 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2140#else
090bf15b 2141 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2142#endif
090bf15b
SR		 2143 result = 0;
2144 }
d05c1ba0 2145 }
cbdc8872 2146 }
d05c1ba0
JH		 2147 else {
2148 SV *sv = POPs;
83003860 2149 const char *name;
7a5fd60d 2150
d05c1ba0
JH		 2151 if (SvTYPE(sv) == SVt_PVGV) {
2152 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2153 goto do_ftruncate_gv;
d05c1ba0
JH		 2154 }
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2156 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2157 goto do_ftruncate_gv;
2158 }
2159 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2160 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2161 goto do_ftruncate_io;
d05c1ba0 2162 }
1e422769 2163
83003860 2164 name = SvPV_nolen_const(sv);
d05c1ba0 2165 TAINT_PROPER("truncate");
cbdc8872 2166#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2167 if (truncate(name, len) < 0)
2168 result = 0;
cbdc8872 2169#else
d05c1ba0
JH		 2170 {
2171 int tmpfd;
2172
2173 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2174 result = 0;
d05c1ba0
JH		 2175 else {
2176 if (my_chsize(tmpfd, len) < 0)
2177 result = 0;
2178 PerlLIO_close(tmpfd);
2179 }
cbdc8872 2180 }
a0d0e21e 2181#endif
d05c1ba0 2182 }
a0d0e21e 2183
d05c1ba0
JH		 2184 if (result)
2185 RETPUSHYES;
2186 if (!errno)
93189314 2187 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2188 RETPUSHUNDEF;
2189 }
a0d0e21e
LW		 2190}
2191
2192PP(pp_fcntl)
2193{
cea2e8a9 2194 return pp_ioctl();
a0d0e21e
LW		 2195}
2196
2197PP(pp_ioctl)
2198{
39644a26 2199 dSP; dTARGET;
748a9306 2200 SV *argsv = POPs;
1df70142 2201 const unsigned int func = POPu;
e1ec3a88 2202 const int optype = PL_op->op_type;
a0d0e21e 2203 char *s;
324aa91a 2204 IV retval;
a0d0e21e 2205 GV *gv = (GV*)POPs;
c289d2f7 2206 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2207
748a9306 2208 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
93189314 2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2212 RETPUSHUNDEF;
2213 }
2214
748a9306 2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2216 STRLEN len;
324aa91a 2217 STRLEN need;
748a9306 2218 s = SvPV_force(argsv, len);
324aa91a
HF		 2219 need = IOCPARM_LEN(func);
2220 if (len < need) {
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
a0d0e21e
LW		 2223 }
2224
748a9306 2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2226 }
2227 else {
748a9306 2228 retval = SvIV(argsv);
c529f79d 2229 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2230 }
2231
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2233
2234 if (optype == OP_IOCTL)
2235#ifdef HAS_IOCTL
76e3520e 2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2237#else
cea2e8a9 2238 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2239#endif
2240 else
c214f4ad
WB		 2241#ifndef HAS_FCNTL
2242 DIE(aTHX_ "fcntl is not implemented");
2243#else
55497cff 2244#if defined(OS2) && defined(__EMX__)
760ac839 2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2246#else
760ac839 2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2248#endif
6652bd42 2249#endif
a0d0e21e 2250
6652bd42 2251#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2252 if (SvPOK(argsv)) {
2253 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2255 OP_NAME(PL_op));
748a9306
LW		 2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2258 }
2259
2260 if (retval == -1)
2261 RETPUSHUNDEF;
2262 if (retval != 0) {
2263 PUSHi(retval);
2264 }
2265 else {
8903cb82 2266 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2267 }
4808266b 2268#endif
c214f4ad 2269 RETURN;
a0d0e21e
LW		 2270}
2271
2272PP(pp_flock)
2273{
9cad6237 2274#ifdef FLOCK
39644a26 2275 dSP; dTARGET;
a0d0e21e
LW		 2276 I32 value;
2277 int argtype;
2278 GV *gv;
bc37a18f 2279 IO *io = NULL;
760ac839 2280 PerlIO *fp;
16d20bd9 2281
a0d0e21e 2282 argtype = POPi;
32da55ab 2283 if (MAXARG == 0)
3280af22 2284 gv = PL_last_in_gv;
a0d0e21e
LW		 2285 else
2286 gv = (GV*)POPs;
bc37a18f
RG		 2287 if (gv && (io = GvIO(gv)))
2288 fp = IoIFP(io);
2289 else {
a0d0e21e 2290 fp = Nullfp;
bc37a18f
RG		 2291 io = NULL;
2292 }
a0d0e21e 2293 if (fp) {
68dc0745 2294 (void)PerlIO_flush(fp);
76e3520e 2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2296 }
cb50131a 2297 else {
bc37a18f
RG		 2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2300 value = 0;
93189314 2301 SETERRNO(EBADF,RMS_IFI);
cb50131a 2302 }
a0d0e21e
LW		 2303 PUSHi(value);
2304 RETURN;
2305#else
cea2e8a9 2306 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2307#endif
2308}
2309
2310/* Sockets. */
2311
2312PP(pp_socket)
2313{
a0d0e21e 2314#ifdef HAS_SOCKET
9cad6237 2315 dSP;
a0d0e21e
LW		 2316 GV *gv;
2317 register IO *io;
2318 int protocol = POPi;
2319 int type = POPi;
2320 int domain = POPi;
2321 int fd;
2322
2323 gv = (GV*)POPs;
c289d2f7 2324 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2325
c289d2f7
JH		 2326 if (!gv || !io) {
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2329 if (IoIFP(io))
2330 do_close(gv, FALSE);
93189314 2331 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2332 RETPUSHUNDEF;
2333 }
2334
57171420
BS		 2335 if (IoIFP(io))
2336 do_close(gv, FALSE);
2337
a0d0e21e 2338 TAINT_PROPER("socket");
6ad3d225 2339 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2340 if (fd < 0)
2341 RETPUSHUNDEF;
460c8493
IZ		 2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2344 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2345 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2349 RETPUSHUNDEF;
2350 }
8d2a6795
GS		 2351#if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2353#endif
a0d0e21e 2354
d5ff79b3
OF		 2355#ifdef EPOC
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2357#endif
2358
a0d0e21e
LW		 2359 RETPUSHYES;
2360#else
cea2e8a9 2361 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2362#endif
2363}
2364
2365PP(pp_sockpair)
2366{
c95c94b1 2367#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2368 dSP;
a0d0e21e
LW		 2369 GV *gv1;
2370 GV *gv2;
2371 register IO *io1;
2372 register IO *io2;
2373 int protocol = POPi;
2374 int type = POPi;
2375 int domain = POPi;
2376 int fd[2];
2377
2378 gv2 = (GV*)POPs;
2379 gv1 = (GV*)POPs;
c289d2f7
JH		 2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2384 if (!gv1 || !io1)
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2386 if (!gv2 || !io2)
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2388 }
2389 if (IoIFP(io1))
2390 do_close(gv1, FALSE);
2391 if (IoIFP(io2))
2392 do_close(gv2, FALSE);
a0d0e21e 2393 RETPUSHUNDEF;
c289d2f7 2394 }
a0d0e21e 2395
dc0d0a5f
JH		 2396 if (IoIFP(io1))
2397 do_close(gv1, FALSE);
2398 if (IoIFP(io2))
2399 do_close(gv2, FALSE);
57171420 2400
a0d0e21e 2401 TAINT_PROPER("socketpair");
6ad3d225 2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2403 RETPUSHUNDEF;
460c8493
IZ		 2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2406 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2409 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2417 RETPUSHUNDEF;
2418 }
8d2a6795
GS		 2419#if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2422#endif
a0d0e21e
LW		 2423
2424 RETPUSHYES;
2425#else
cea2e8a9 2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2427#endif
2428}
2429
2430PP(pp_bind)
2431{
a0d0e21e 2432#ifdef HAS_SOCKET
9cad6237 2433 dSP;
eec2d3df 2434#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
eec2d3df 2437#endif
748a9306 2438 SV *addrsv = POPs;
349d4f2f
NC		 2439 /* OK, so on what platform does bind modify addr? */
2440 const char *addr;
a0d0e21e
LW		 2441 GV *gv = (GV*)POPs;
2442 register IO *io = GvIOn(gv);
2443 STRLEN len;
eec2d3df
GS		 2444 int bind_ok = 0;
2445#ifdef MPE
2446 int mpeprivmode = 0;
2447#endif
a0d0e21e
LW		 2448
2449 if (!io || !IoIFP(io))
2450 goto nuts;
2451
349d4f2f 2452 addr = SvPV_const(addrsv, len);
a0d0e21e 2453 TAINT_PROPER("bind");
eec2d3df
GS		 2454#ifdef MPE /* Deal with MPE bind() peculiarities */
2455 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2456 /* The address *MUST* stupidly be zero. */
2457 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2458 /* PRIV mode is required to bind() to ports < 1024. */
2459 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2460 ((struct sockaddr_in *)addr)->sin_port > 0) {
2461 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2462 mpeprivmode = 1;
2463 }
2464 }
2465#endif /* MPE */
2466 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2467 (struct sockaddr *)addr, len) >= 0)
2468 bind_ok = 1;
2469
2470#ifdef MPE /* Switch back to USER mode */
2471 if (mpeprivmode)
2472 GETUSERMODE();
2473#endif /* MPE */
2474
2475 if (bind_ok)
a0d0e21e
LW		 2476 RETPUSHYES;
2477 else
2478 RETPUSHUNDEF;
2479
2480nuts:
599cee73 2481 if (ckWARN(WARN_CLOSED))
bc37a18f 2482 report_evil_fh(gv, io, PL_op->op_type);
93189314 2483 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2484 RETPUSHUNDEF;
2485#else
cea2e8a9 2486 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2487#endif
2488}
2489
2490PP(pp_connect)
2491{
a0d0e21e 2492#ifdef HAS_SOCKET
9cad6237 2493 dSP;
748a9306 2494 SV *addrsv = POPs;
349d4f2f 2495 const char *addr;
a0d0e21e
LW		 2496 GV *gv = (GV*)POPs;
2497 register IO *io = GvIOn(gv);
2498 STRLEN len;
2499
2500 if (!io || !IoIFP(io))
2501 goto nuts;
2502
349d4f2f 2503 addr = SvPV_const(addrsv, len);
a0d0e21e 2504 TAINT_PROPER("connect");
6ad3d225 2505 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2506 RETPUSHYES;
2507 else
2508 RETPUSHUNDEF;
2509
2510nuts:
599cee73 2511 if (ckWARN(WARN_CLOSED))
bc37a18f 2512 report_evil_fh(gv, io, PL_op->op_type);
93189314 2513 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2514 RETPUSHUNDEF;
2515#else
cea2e8a9 2516 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2517#endif
2518}
2519
2520PP(pp_listen)
2521{
a0d0e21e 2522#ifdef HAS_SOCKET
9cad6237 2523 dSP;
a0d0e21e
LW		 2524 int backlog = POPi;
2525 GV *gv = (GV*)POPs;
c289d2f7 2526 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2527
c289d2f7 2528 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2529 goto nuts;
2530
6ad3d225 2531 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2532 RETPUSHYES;
2533 else
2534 RETPUSHUNDEF;
2535
2536nuts:
599cee73 2537 if (ckWARN(WARN_CLOSED))
bc37a18f 2538 report_evil_fh(gv, io, PL_op->op_type);
93189314 2539 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2540 RETPUSHUNDEF;
2541#else
cea2e8a9 2542 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2543#endif
2544}
2545
2546PP(pp_accept)
2547{
a0d0e21e 2548#ifdef HAS_SOCKET
9cad6237 2549 dSP; dTARGET;
a0d0e21e
LW		 2550 GV *ngv;
2551 GV *ggv;
2552 register IO *nstio;
2553 register IO *gstio;
93d47a36
JH		 2554 char namebuf[MAXPATHLEN];
2555#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2556 Sock_size_t len = sizeof (struct sockaddr_in);
2557#else
2558 Sock_size_t len = sizeof namebuf;
2559#endif
a0d0e21e
LW		 2560 int fd;
2561
2562 ggv = (GV*)POPs;
2563 ngv = (GV*)POPs;
2564
2565 if (!ngv)
2566 goto badexit;
2567 if (!ggv)
2568 goto nuts;
2569
2570 gstio = GvIO(ggv);
2571 if (!gstio || !IoIFP(gstio))
2572 goto nuts;
2573
2574 nstio = GvIOn(ngv);
93d47a36 2575 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2576 if (fd < 0)
2577 goto badexit;
a70048fb
AB		 2578 if (IoIFP(nstio))
2579 do_close(ngv, FALSE);
460c8493
IZ		 2580 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2581 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2582 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2583 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2584 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2585 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2586 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2587 goto badexit;
2588 }
8d2a6795
GS		 2589#if defined(HAS_FCNTL) && defined(F_SETFD)
2590 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2591#endif
a0d0e21e 2592
ed79a026 2593#ifdef EPOC
93d47a36 2594 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2595 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2596#endif
381c1bae 2597#ifdef __SCO_VERSION__
93d47a36 2598 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2599#endif
ed79a026 2600
93d47a36 2601 PUSHp(namebuf, len);
a0d0e21e
LW		 2602 RETURN;
2603
2604nuts:
599cee73 2605 if (ckWARN(WARN_CLOSED))
bc37a18f 2606 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2607 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2608
2609badexit:
2610 RETPUSHUNDEF;
2611
2612#else
cea2e8a9 2613 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2614#endif
2615}
2616
2617PP(pp_shutdown)
2618{
a0d0e21e 2619#ifdef HAS_SOCKET
9cad6237 2620 dSP; dTARGET;
a0d0e21e
LW		 2621 int how = POPi;
2622 GV *gv = (GV*)POPs;
2623 register IO *io = GvIOn(gv);
2624
2625 if (!io || !IoIFP(io))
2626 goto nuts;
2627
6ad3d225 2628 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2629 RETURN;
2630
2631nuts:
599cee73 2632 if (ckWARN(WARN_CLOSED))
bc37a18f 2633 report_evil_fh(gv, io, PL_op->op_type);
93189314 2634 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2635 RETPUSHUNDEF;
2636#else
cea2e8a9 2637 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2638#endif
2639}
2640
2641PP(pp_gsockopt)
2642{
2643#ifdef HAS_SOCKET
cea2e8a9 2644 return pp_ssockopt();
a0d0e21e 2645#else
cea2e8a9 2646 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2647#endif
2648}
2649
2650PP(pp_ssockopt)
2651{
a0d0e21e 2652#ifdef HAS_SOCKET
9cad6237 2653 dSP;
533c011a 2654 int optype = PL_op->op_type;
a0d0e21e
LW		 2655 SV *sv;
2656 int fd;
2657 unsigned int optname;
2658 unsigned int lvl;
2659 GV *gv;
2660 register IO *io;
1e422769 2661 Sock_size_t len;
a0d0e21e
LW		 2662
2663 if (optype == OP_GSOCKOPT)
2664 sv = sv_2mortal(NEWSV(22, 257));
2665 else
2666 sv = POPs;
2667 optname = (unsigned int) POPi;
2668 lvl = (unsigned int) POPi;
2669
2670 gv = (GV*)POPs;
2671 io = GvIOn(gv);
2672 if (!io || !IoIFP(io))
2673 goto nuts;
2674
760ac839 2675 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2676 switch (optype) {
2677 case OP_GSOCKOPT:
748a9306 2678 SvGROW(sv, 257);
a0d0e21e 2679 (void)SvPOK_only(sv);
748a9306
LW		 2680 SvCUR_set(sv,256);
2681 *SvEND(sv) ='\0';
1e422769 2682 len = SvCUR(sv);
6ad3d225 2683 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2684 goto nuts2;
1e422769 2685 SvCUR_set(sv, len);
748a9306 2686 *SvEND(sv) ='\0';
a0d0e21e
LW		 2687 PUSHs(sv);
2688 break;
2689 case OP_SSOCKOPT: {
1215b447
JH		 2690#if defined(__SYMBIAN32__)
2691# define SETSOCKOPT_OPTION_VALUE_T void *
2692#else
2693# define SETSOCKOPT_OPTION_VALUE_T const char *
2694#endif
2695 /* XXX TODO: We need to have a proper type (a Configure probe,
2696 * etc.) for what the C headers think of the third argument of
2697 * setsockopt(), the option_value read-only buffer: is it
2698 * a "char *", or a "void *", const or not. Some compilers
2699 * don't take kindly to e.g. assuming that "char *" implicitly
2700 * promotes to a "void *", or to explicitly promoting/demoting
2701 * consts to non/vice versa. The "const void *" is the SUS
2702 * definition, but that does not fly everywhere for the above
2703 * reasons. */
2704 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769 2705 int aint;
2706 if (SvPOKp(sv)) {
2d8e6c8d 2707 STRLEN l;
1215b447 2708 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2709 len = l;
1e422769 2710 }
56ee1660 2711 else {
a0d0e21e 2712 aint = (int)SvIV(sv);
1215b447 2713 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW		 2714 len = sizeof(int);
2715 }
6ad3d225 2716 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2717 goto nuts2;
3280af22 2718 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2719 }
2720 break;
2721 }
2722 RETURN;
2723
2724nuts:
599cee73 2725 if (ckWARN(WARN_CLOSED))
bc37a18f 2726 report_evil_fh(gv, io, optype);
93189314 2727 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2728nuts2:
2729 RETPUSHUNDEF;
2730
2731#else
cea2e8a9 2732 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2733#endif
2734}
2735
2736PP(pp_getsockname)
2737{
2738#ifdef HAS_SOCKET
cea2e8a9 2739 return pp_getpeername();
a0d0e21e 2740#else
cea2e8a9 2741 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2742#endif
2743}
2744
2745PP(pp_getpeername)
2746{
a0d0e21e 2747#ifdef HAS_SOCKET
9cad6237 2748 dSP;
533c011a 2749 int optype = PL_op->op_type;
a0d0e21e
LW		 2750 SV *sv;
2751 int fd;
2752 GV *gv = (GV*)POPs;
2753 register IO *io = GvIOn(gv);
1e422769 2754 Sock_size_t len;
a0d0e21e
LW		 2755
2756 if (!io || !IoIFP(io))
2757 goto nuts;
2758
2759 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2760 (void)SvPOK_only(sv);
1e422769 2761 len = 256;
2762 SvCUR_set(sv, len);
748a9306 2763 *SvEND(sv) ='\0';
760ac839 2764 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2765 switch (optype) {
2766 case OP_GETSOCKNAME:
6ad3d225 2767 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2768 goto nuts2;
2769 break;
2770 case OP_GETPEERNAME:
6ad3d225 2771 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2772 goto nuts2;
490ab354
JH		 2773#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2774 {
2775 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";
2776 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2777 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2778 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2779 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2780 goto nuts2;
490ab354
JH		 2781 }
2782 }
2783#endif
a0d0e21e
LW		 2784 break;
2785 }
13826f2c
CS		 2786#ifdef BOGUS_GETNAME_RETURN
2787 /* Interactive Unix, getpeername() and getsockname()
2788 does not return valid namelen */
1e422769 2789 if (len == BOGUS_GETNAME_RETURN)
2790 len = sizeof(struct sockaddr);
13826f2c 2791#endif
1e422769 2792 SvCUR_set(sv, len);
748a9306 2793 *SvEND(sv) ='\0';
a0d0e21e
LW		 2794 PUSHs(sv);
2795 RETURN;
2796
2797nuts:
599cee73 2798 if (ckWARN(WARN_CLOSED))
bc37a18f 2799 report_evil_fh(gv, io, optype);
93189314 2800 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2801nuts2:
2802 RETPUSHUNDEF;
2803
2804#else
cea2e8a9 2805 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2806#endif
2807}
2808
2809/* Stat calls. */
2810
2811PP(pp_lstat)
2812{
cea2e8a9 2813 return pp_stat();
a0d0e21e
LW		 2814}
2815
2816PP(pp_stat)
2817{
39644a26 2818 dSP;
2dd78f96 2819 GV *gv;
54310121 2820 I32 gimme;
a0d0e21e
LW		 2821 I32 max = 13;
2822
533c011a 2823 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2824 gv = cGVOP_gv;
8a4e5b40 2825 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2826 if (gv != PL_defgv) {
2827 if (ckWARN(WARN_IO))
9014280d 2828 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2829 "lstat() on filehandle %s", GvENAME(gv));
2830 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2831 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2832 }
2833
748a9306 2834 do_fstat:
2dd78f96 2835 if (gv != PL_defgv) {
3280af22 2836 PL_laststype = OP_STAT;
2dd78f96 2837 PL_statgv = gv;
c69006e4 2838 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2839 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2840 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2841 }
9ddeeac9 2842 if (PL_laststatval < 0) {
2dd78f96
JH		 2843 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2844 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2845 max = 0;
9ddeeac9 2846 }
a0d0e21e
LW		 2847 }
2848 else {
748a9306
LW		 2849 SV* sv = POPs;
2850 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2851 gv = (GV*)sv;
748a9306
LW		 2852 goto do_fstat;
2853 }
2854 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2855 gv = (GV*)SvRV(sv);
5d3e98de 2856 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2857 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2858 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2859 goto do_fstat;
2860 }
0510663f 2861 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2862 PL_statgv = Nullgv;
533c011a
NIS		 2863 PL_laststype = PL_op->op_type;
2864 if (PL_op->op_type == OP_LSTAT)
0510663f 2865 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2866 else
0510663f 2867 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2868 if (PL_laststatval < 0) {
0510663f 2869 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2870 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2871 max = 0;
2872 }
2873 }
2874
54310121 2875 gimme = GIMME_V;
2876 if (gimme != G_ARRAY) {
2877 if (gimme != G_VOID)
2878 XPUSHs(boolSV(max));
2879 RETURN;
a0d0e21e
LW		 2880 }
2881 if (max) {
36477c24 2882 EXTEND(SP, max);
2883 EXTEND_MORTAL(max);
1ff81528
PL		 2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2885 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2887 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2888#if Uid_t_size > IVSIZE
2889 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2890#else
23dcd6c8 2891# if Uid_t_sign <= 0
1ff81528 2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2893# else
2894 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2895# endif
146174a9 2896#endif
301e8125 2897#if Gid_t_size > IVSIZE
146174a9
CB		 2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2899#else
23dcd6c8 2900# if Gid_t_sign <= 0
1ff81528 2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2902# else
2903 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2904# endif
146174a9 2905#endif
cbdc8872 2906#ifdef USE_STAT_RDEV
1ff81528 2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2908#else
79cb57f6 2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2910#endif
146174a9 2911#if Off_t_size > IVSIZE
4a9d6100 2912 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2913#else
1ff81528 2914 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2915#endif
cbdc8872 2916#ifdef BIG_TIME
172ae379
JH		 2917 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2918 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2919 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2920#else
1ff81528
PL		 2921 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2922 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2923 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2924#endif
a0d0e21e 2925#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2926 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2927 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2928#else
79cb57f6
GS		 2929 PUSHs(sv_2mortal(newSVpvn("", 0)));
2930 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2931#endif
2932 }
2933 RETURN;
2934}
2935
fbb0b3b3
RGS		 2936/* This macro is used by the stacked filetest operators :
2937 * if the previous filetest failed, short-circuit and pass its value.
2938 * Else, discard it from the stack and continue. --rgs
2939 */
2940#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2941 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2942 else { (void)POPs; PUTBACK; } \
2943 }
2944
a0d0e21e
LW		 2945PP(pp_ftrread)
2946{
9cad6237 2947 I32 result;
2a3ff820 2948 dSP;
fbb0b3b3 2949 STACKED_FTEST_CHECK;
5ff3f7a4 2950#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2951 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2952 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2953 if (result == 0)
2954 RETPUSHYES;
2955 if (result < 0)
2956 RETPUSHUNDEF;
2957 RETPUSHNO;
22865c03
GS		 2958 }
2959 else
cea2e8a9 2960 result = my_stat();
5ff3f7a4 2961#else
cea2e8a9 2962 result = my_stat();
5ff3f7a4 2963#endif
22865c03 2964 SPAGAIN;
a0d0e21e
LW		 2965 if (result < 0)
2966 RETPUSHUNDEF;
3280af22 2967 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2968 RETPUSHYES;
2969 RETPUSHNO;
2970}
2971
2972PP(pp_ftrwrite)
2973{
9cad6237 2974 I32 result;
2a3ff820 2975 dSP;
fbb0b3b3 2976 STACKED_FTEST_CHECK;
5ff3f7a4 2977#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2978 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2979 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2980 if (result == 0)
2981 RETPUSHYES;
2982 if (result < 0)
2983 RETPUSHUNDEF;
2984 RETPUSHNO;
22865c03
GS		 2985 }
2986 else
cea2e8a9 2987 result = my_stat();
5ff3f7a4 2988#else
cea2e8a9 2989 result = my_stat();
5ff3f7a4 2990#endif
22865c03 2991 SPAGAIN;
a0d0e21e
LW		 2992 if (result < 0)
2993 RETPUSHUNDEF;
3280af22 2994 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2995 RETPUSHYES;
2996 RETPUSHNO;
2997}
2998
2999PP(pp_ftrexec)
3000{
9cad6237 3001 I32 result;
2a3ff820 3002 dSP;
fbb0b3b3 3003 STACKED_FTEST_CHECK;
5ff3f7a4 3004#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 3005 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3006 result = access(POPpx, X_OK);
5ff3f7a4
GS		 3007 if (result == 0)
3008 RETPUSHYES;
3009 if (result < 0)
3010 RETPUSHUNDEF;
3011 RETPUSHNO;
22865c03
GS		 3012 }
3013 else
cea2e8a9 3014 result = my_stat();
5ff3f7a4 3015#else
cea2e8a9 3016 result = my_stat();
5ff3f7a4 3017#endif
22865c03 3018 SPAGAIN;
a0d0e21e
LW		 3019 if (result < 0)
3020 RETPUSHUNDEF;
3280af22 3021 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3022 RETPUSHYES;
3023 RETPUSHNO;
3024}
3025
3026PP(pp_fteread)
3027{
9cad6237 3028 I32 result;
2a3ff820 3029 dSP;
fbb0b3b3 3030 STACKED_FTEST_CHECK;
5ff3f7a4 3031#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3032 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3033 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3034 if (result == 0)
3035 RETPUSHYES;
3036 if (result < 0)
3037 RETPUSHUNDEF;
3038 RETPUSHNO;
22865c03
GS		 3039 }
3040 else
cea2e8a9 3041 result = my_stat();
5ff3f7a4 3042#else
cea2e8a9 3043 result = my_stat();
5ff3f7a4 3044#endif
22865c03 3045 SPAGAIN;
a0d0e21e
LW		 3046 if (result < 0)
3047 RETPUSHUNDEF;
3280af22 3048 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3049 RETPUSHYES;
3050 RETPUSHNO;
3051}
3052
3053PP(pp_ftewrite)
3054{
9cad6237 3055 I32 result;
2a3ff820 3056 dSP;
fbb0b3b3 3057 STACKED_FTEST_CHECK;
5ff3f7a4 3058#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3059 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3060 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3061 if (result == 0)
3062 RETPUSHYES;
3063 if (result < 0)
3064 RETPUSHUNDEF;
3065 RETPUSHNO;
22865c03
GS		 3066 }
3067 else
cea2e8a9 3068 result = my_stat();
5ff3f7a4 3069#else
cea2e8a9 3070 result = my_stat();
5ff3f7a4 3071#endif
22865c03 3072 SPAGAIN;
a0d0e21e
LW		 3073 if (result < 0)
3074 RETPUSHUNDEF;
3280af22 3075 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3076 RETPUSHYES;
3077 RETPUSHNO;
3078}
3079
3080PP(pp_fteexec)
3081{
9cad6237 3082 I32 result;
2a3ff820 3083 dSP;
fbb0b3b3 3084 STACKED_FTEST_CHECK;
5ff3f7a4 3085#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3086 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3087 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3088 if (result == 0)
3089 RETPUSHYES;
3090 if (result < 0)
3091 RETPUSHUNDEF;
3092 RETPUSHNO;
22865c03
GS		 3093 }
3094 else
cea2e8a9 3095 result = my_stat();
5ff3f7a4 3096#else
cea2e8a9 3097 result = my_stat();
5ff3f7a4 3098#endif
22865c03 3099 SPAGAIN;
a0d0e21e
LW		 3100 if (result < 0)
3101 RETPUSHUNDEF;
3280af22 3102 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3103 RETPUSHYES;
3104 RETPUSHNO;
3105}
3106
3107PP(pp_ftis)
3108{
fbb0b3b3 3109 I32 result;
2a3ff820 3110 dSP;
fbb0b3b3
RGS		 3111 STACKED_FTEST_CHECK;
3112 result = my_stat();
3113 SPAGAIN;
a0d0e21e
LW		 3114 if (result < 0)
3115 RETPUSHUNDEF;
3116 RETPUSHYES;
3117}
3118
3119PP(pp_fteowned)
3120{
cea2e8a9 3121 return pp_ftrowned();
a0d0e21e
LW		 3122}
3123
3124PP(pp_ftrowned)
3125{
fbb0b3b3 3126 I32 result;
2a3ff820 3127 dSP;
fbb0b3b3
RGS		 3128 STACKED_FTEST_CHECK;
3129 result = my_stat();
3130 SPAGAIN;
a0d0e21e
LW		 3131 if (result < 0)
3132 RETPUSHUNDEF;
146174a9
CB		 3133 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3134 PL_euid : PL_uid) )
a0d0e21e
LW		 3135 RETPUSHYES;
3136 RETPUSHNO;
3137}
3138
3139PP(pp_ftzero)
3140{
fbb0b3b3 3141 I32 result;
2a3ff820 3142 dSP;
fbb0b3b3
RGS		 3143 STACKED_FTEST_CHECK;
3144 result = my_stat();
3145 SPAGAIN;
a0d0e21e
LW		 3146 if (result < 0)
3147 RETPUSHUNDEF;
146174a9 3148 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3149 RETPUSHYES;
3150 RETPUSHNO;
3151}
3152
3153PP(pp_ftsize)
3154{
fbb0b3b3 3155 I32 result;
2a3ff820 3156 dSP; dTARGET;
fbb0b3b3
RGS		 3157 STACKED_FTEST_CHECK;
3158 result = my_stat();
3159 SPAGAIN;
a0d0e21e
LW		 3160 if (result < 0)
3161 RETPUSHUNDEF;
146174a9
CB		 3162#if Off_t_size > IVSIZE
3163 PUSHn(PL_statcache.st_size);
3164#else
3280af22 3165 PUSHi(PL_statcache.st_size);
146174a9 3166#endif
a0d0e21e
LW		 3167 RETURN;
3168}
3169
3170PP(pp_ftmtime)
3171{
fbb0b3b3 3172 I32 result;
2a3ff820 3173 dSP; dTARGET;
fbb0b3b3
RGS		 3174 STACKED_FTEST_CHECK;
3175 result = my_stat();
3176 SPAGAIN;
a0d0e21e
LW		 3177 if (result < 0)
3178 RETPUSHUNDEF;
a80d47c2 3179 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3180 RETURN;
3181}
3182
3183PP(pp_ftatime)
3184{
fbb0b3b3 3185 I32 result;
2a3ff820 3186 dSP; dTARGET;
fbb0b3b3
RGS		 3187 STACKED_FTEST_CHECK;
3188 result = my_stat();
3189 SPAGAIN;
a0d0e21e
LW		 3190 if (result < 0)
3191 RETPUSHUNDEF;
a80d47c2 3192 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3193 RETURN;
3194}
3195
3196PP(pp_ftctime)
3197{
fbb0b3b3 3198 I32 result;
2a3ff820 3199 dSP; dTARGET;
fbb0b3b3
RGS		 3200 STACKED_FTEST_CHECK;
3201 result = my_stat();
3202 SPAGAIN;
a0d0e21e
LW		 3203 if (result < 0)
3204 RETPUSHUNDEF;
a80d47c2 3205 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3206 RETURN;
3207}
3208
3209PP(pp_ftsock)
3210{
fbb0b3b3 3211 I32 result;
2a3ff820 3212 dSP;
fbb0b3b3
RGS		 3213 STACKED_FTEST_CHECK;
3214 result = my_stat();
3215 SPAGAIN;
a0d0e21e
LW		 3216 if (result < 0)
3217 RETPUSHUNDEF;
3280af22 3218 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3219 RETPUSHYES;
3220 RETPUSHNO;
3221}
3222
3223PP(pp_ftchr)
3224{
fbb0b3b3 3225 I32 result;
2a3ff820 3226 dSP;
fbb0b3b3
RGS		 3227 STACKED_FTEST_CHECK;
3228 result = my_stat();
3229 SPAGAIN;
a0d0e21e
LW		 3230 if (result < 0)
3231 RETPUSHUNDEF;
3280af22 3232 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3233 RETPUSHYES;
3234 RETPUSHNO;
3235}
3236
3237PP(pp_ftblk)
3238{
fbb0b3b3 3239 I32 result;
2a3ff820 3240 dSP;
fbb0b3b3
RGS		 3241 STACKED_FTEST_CHECK;
3242 result = my_stat();
3243 SPAGAIN;
a0d0e21e
LW		 3244 if (result < 0)
3245 RETPUSHUNDEF;
3280af22 3246 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3247 RETPUSHYES;
3248 RETPUSHNO;
3249}
3250
3251PP(pp_ftfile)
3252{
fbb0b3b3 3253 I32 result;
2a3ff820 3254 dSP;
fbb0b3b3
RGS		 3255 STACKED_FTEST_CHECK;
3256 result = my_stat();
3257 SPAGAIN;
a0d0e21e
LW		 3258 if (result < 0)
3259 RETPUSHUNDEF;
3280af22 3260 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3261 RETPUSHYES;
3262 RETPUSHNO;
3263}
3264
3265PP(pp_ftdir)
3266{
fbb0b3b3 3267 I32 result;
2a3ff820 3268 dSP;
fbb0b3b3
RGS		 3269 STACKED_FTEST_CHECK;
3270 result = my_stat();
3271 SPAGAIN;
a0d0e21e
LW		 3272 if (result < 0)
3273 RETPUSHUNDEF;
3280af22 3274 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3275 RETPUSHYES;
3276 RETPUSHNO;
3277}
3278
3279PP(pp_ftpipe)
3280{
fbb0b3b3 3281 I32 result;
2a3ff820 3282 dSP;
fbb0b3b3
RGS		 3283 STACKED_FTEST_CHECK;
3284 result = my_stat();
3285 SPAGAIN;
a0d0e21e
LW		 3286 if (result < 0)
3287 RETPUSHUNDEF;
3280af22 3288 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3289 RETPUSHYES;
3290 RETPUSHNO;
3291}
3292
3293PP(pp_ftlink)
3294{
9cad6237 3295 I32 result = my_lstat();
2a3ff820 3296 dSP;
a0d0e21e
LW		 3297 if (result < 0)
3298 RETPUSHUNDEF;
3280af22 3299 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3300 RETPUSHYES;
3301 RETPUSHNO;
3302}
3303
3304PP(pp_ftsuid)
3305{
39644a26 3306 dSP;
a0d0e21e 3307#ifdef S_ISUID
fbb0b3b3
RGS		 3308 I32 result;
3309 STACKED_FTEST_CHECK;
3310 result = my_stat();
a0d0e21e
LW		 3311 SPAGAIN;
3312 if (result < 0)
3313 RETPUSHUNDEF;
3280af22 3314 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3315 RETPUSHYES;
3316#endif
3317 RETPUSHNO;
3318}
3319
3320PP(pp_ftsgid)
3321{
39644a26 3322 dSP;
a0d0e21e 3323#ifdef S_ISGID
fbb0b3b3
RGS		 3324 I32 result;
3325 STACKED_FTEST_CHECK;
3326 result = my_stat();
a0d0e21e
LW		 3327 SPAGAIN;
3328 if (result < 0)
3329 RETPUSHUNDEF;
3280af22 3330 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3331 RETPUSHYES;
3332#endif
3333 RETPUSHNO;
3334}
3335
3336PP(pp_ftsvtx)
3337{
39644a26 3338 dSP;
a0d0e21e 3339#ifdef S_ISVTX
fbb0b3b3
RGS		 3340 I32 result;
3341 STACKED_FTEST_CHECK;
3342 result = my_stat();
a0d0e21e
LW		 3343 SPAGAIN;
3344 if (result < 0)
3345 RETPUSHUNDEF;
3280af22 3346 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3347 RETPUSHYES;
3348#endif
3349 RETPUSHNO;
3350}
3351
3352PP(pp_fttty)
3353{
39644a26 3354 dSP;
a0d0e21e
LW		 3355 int fd;
3356 GV *gv;
7a5fd60d 3357 SV *tmpsv = Nullsv;
fb73857a 3358
fbb0b3b3
RGS		 3359 STACKED_FTEST_CHECK;
3360
533c011a 3361 if (PL_op->op_flags & OPf_REF)
146174a9 3362 gv = cGVOP_gv;
fb73857a 3363 else if (isGV(TOPs))
3364 gv = (GV*)POPs;
3365 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3366 gv = (GV*)SvRV(POPs);
a0d0e21e 3367 else
7a5fd60d 3368 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3369
a0d0e21e 3370 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3371 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3372 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3373 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3374 if (isDIGIT(*tmps))
3375 fd = atoi(tmps);
3376 else
3377 RETPUSHUNDEF;
3378 }
a0d0e21e
LW		 3379 else
3380 RETPUSHUNDEF;
6ad3d225 3381 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3382 RETPUSHYES;
3383 RETPUSHNO;
3384}
3385
16d20bd9
AD		 3386#if defined(atarist) /* this will work with atariST. Configure will
3387 make guesses for other systems. */
3388# define FILE_base(f) ((f)->_base)
3389# define FILE_ptr(f) ((f)->_ptr)
3390# define FILE_cnt(f) ((f)->_cnt)
3391# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3392#endif
3393
3394PP(pp_fttext)
3395{
39644a26 3396 dSP;
a0d0e21e
LW		 3397 I32 i;
3398 I32 len;
3399 I32 odd = 0;
3400 STDCHAR tbuf[512];
3401 register STDCHAR *s;
3402 register IO *io;
5f05dabc 3403 register SV *sv;
3404 GV *gv;
146174a9 3405 PerlIO *fp;
a0d0e21e 3406
fbb0b3b3
RGS		 3407 STACKED_FTEST_CHECK;
3408
533c011a 3409 if (PL_op->op_flags & OPf_REF)
146174a9 3410 gv = cGVOP_gv;
5f05dabc 3411 else if (isGV(TOPs))
3412 gv = (GV*)POPs;
3413 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3414 gv = (GV*)SvRV(POPs);
3415 else
3416 gv = Nullgv;
3417
3418 if (gv) {
a0d0e21e 3419 EXTEND(SP, 1);
3280af22
NIS		 3420 if (gv == PL_defgv) {
3421 if (PL_statgv)
3422 io = GvIO(PL_statgv);
a0d0e21e 3423 else {
3280af22 3424 sv = PL_statname;
a0d0e21e
LW		 3425 goto really_filename;
3426 }
3427 }
3428 else {
3280af22
NIS		 3429 PL_statgv = gv;
3430 PL_laststatval = -1;
c69006e4 3431 sv_setpvn(PL_statname, "", 0);
3280af22 3432 io = GvIO(PL_statgv);
a0d0e21e
LW		 3433 }
3434 if (io && IoIFP(io)) {
5f05dabc 3435 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3436 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3437 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3438 if (PL_laststatval < 0)
5f05dabc 3439 RETPUSHUNDEF;
9cbac4c7 3440 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3441 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3442 RETPUSHNO;
3443 else
3444 RETPUSHYES;
9cbac4c7 3445 }
a20bf0c3 3446 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3447 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3448 if (i != EOF)
760ac839 3449 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3450 }
a20bf0c3 3451 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3452 RETPUSHYES;
a20bf0c3
JH		 3453 len = PerlIO_get_bufsiz(IoIFP(io));
3454 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3455 /* sfio can have large buffers - limit to 512 */
3456 if (len > 512)
3457 len = 512;
a0d0e21e
LW		 3458 }
3459 else {
2dd78f96 3460 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3461 gv = cGVOP_gv;
2dd78f96 3462 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3463 }
93189314 3464 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3465 RETPUSHUNDEF;
3466 }
3467 }
3468 else {
3469 sv = POPs;
5f05dabc 3470 really_filename:
3280af22 3471 PL_statgv = Nullgv;
5c9aa243 3472 PL_laststype = OP_STAT;
d5263905 3473 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3474 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3475 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3476 '\n'))
9014280d 3477 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3478 RETPUSHUNDEF;
3479 }
146174a9
CB		 3480 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3481 if (PL_laststatval < 0) {
3482 (void)PerlIO_close(fp);
5f05dabc 3483 RETPUSHUNDEF;
146174a9 3484 }
60382766 3485 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3486 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3487 (void)PerlIO_close(fp);
a0d0e21e 3488 if (len <= 0) {
533c011a 3489 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3490 RETPUSHNO; /* special case NFS directories */
3491 RETPUSHYES; /* null file is anything */
3492 }
3493 s = tbuf;
3494 }
3495
3496 /* now scan s to look for textiness */
4633a7c4 3497 /* XXX ASCII dependent code */
a0d0e21e 3498
146174a9
CB		 3499#if defined(DOSISH) || defined(USEMYBINMODE)
3500 /* ignore trailing ^Z on short files */
3501 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3502 --len;
3503#endif
3504
a0d0e21e
LW		 3505 for (i = 0; i < len; i++, s++) {
3506 if (!*s) { /* null never allowed in text */
3507 odd += len;
3508 break;
3509 }
9d116dd7 3510#ifdef EBCDIC
301e8125 3511 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3512 odd++;
3513#else
146174a9
CB		 3514 else if (*s & 128) {
3515#ifdef USE_LOCALE
2de3dbcc 3516 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3517 continue;
3518#endif
3519 /* utf8 characters don't count as odd */
fd400ab9 3520 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3521 int ulen = UTF8SKIP(s);
3522 if (ulen < len - i) {
3523 int j;
3524 for (j = 1; j < ulen; j++) {
fd400ab9 3525 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3526 goto not_utf8;
3527 }
3528 --ulen; /* loop does extra increment */
3529 s += ulen;
3530 i += ulen;
3531 continue;
3532 }
3533 }
3534 not_utf8:
3535 odd++;
146174a9 3536 }
a0d0e21e
LW		 3537 else if (*s < 32 &&
3538 *s != '\n' && *s != '\r' && *s != '\b' &&
3539 *s != '\t' && *s != '\f' && *s != 27)
3540 odd++;
9d116dd7 3541#endif
a0d0e21e
LW		 3542 }
3543
533c011a 3544 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3545 RETPUSHNO;
3546 else
3547 RETPUSHYES;
3548}
3549
3550PP(pp_ftbinary)
3551{
cea2e8a9 3552 return pp_fttext();
a0d0e21e
LW		 3553}
3554
3555/* File calls. */
3556
3557PP(pp_chdir)
3558{
39644a26 3559 dSP; dTARGET;
c4aca7d0 3560 const char *tmps = 0;
9a957fbc 3561 GV *gv = NULL;
a0d0e21e 3562
c4aca7d0 3563 if( MAXARG == 1 ) {
9a957fbc 3564 SV * const sv = POPs;
c4aca7d0
GA		 3565 if (SvTYPE(sv) == SVt_PVGV) {
3566 gv = (GV*)sv;
3567 }
3568 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3569 gv = (GV*)SvRV(sv);
3570 }
3571 else {
3572 tmps = SvPVx_nolen_const(sv);
3573 }
3574 }
35ae6b54 3575
c4aca7d0 3576 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3577 HV * const table = GvHVn(PL_envgv);
3578 SV **svp;
3579
3580 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3581 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
491527d0 3582#ifdef VMS
9a957fbc 3583 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
491527d0 3584#endif
35ae6b54
MS		 3585 )
3586 {
3587 if( MAXARG == 1 )
9014280d 3588 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3589 tmps = SvPV_nolen_const(*svp);
35ae6b54 3590 }
72f496dc 3591 else {
389ec635 3592 PUSHi(0);
b7ab37f8 3593 TAINT_PROPER("chdir");
389ec635
MS		 3594 RETURN;
3595 }
8ea155d1 3596 }
8ea155d1 3597
a0d0e21e 3598 TAINT_PROPER("chdir");
c4aca7d0
GA		 3599 if (gv) {
3600#ifdef HAS_FCHDIR
9a957fbc 3601 IO* const io = GvIO(gv);
c4aca7d0
GA		 3602 if (io) {
3603 if (IoIFP(io)) {
3604 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3605 }
3606 else if (IoDIRP(io)) {
3607#ifdef HAS_DIRFD
3608 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3609#else
0f1f2428 3610 DIE(aTHX_ PL_no_func, "dirfd");
c4aca7d0
GA		 3611#endif
3612 }
3613 else {
3614 PUSHi(0);
3615 }
3616 }
3617 else {
3618 PUSHi(0);
3619 }
3620#else
3621 DIE(aTHX_ PL_no_func, "fchdir");
3622#endif
3623 }
3624 else
b8ffc8df 3625 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3626#ifdef VMS
3627 /* Clear the DEFAULT element of ENV so we'll get the new value
3628 * in the future. */
6b88bc9c 3629 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3630#endif
a0d0e21e
LW		 3631 RETURN;
3632}
3633
3634PP(pp_chown)
3635{
a0d0e21e 3636#ifdef HAS_CHOWN
76ffd3b9
IZ		 3637 dSP; dMARK; dTARGET;
3638 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3639
a0d0e21e
LW		 3640 SP = MARK;
3641 PUSHi(value);
3642 RETURN;
3643#else
0322a713 3644 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3645#endif
3646}
3647
3648PP(pp_chroot)
3649{
a0d0e21e 3650#ifdef HAS_CHROOT
76ffd3b9 3651 dSP; dTARGET;
d05c1ba0 3652 char *tmps = POPpx;
a0d0e21e
LW		 3653 TAINT_PROPER("chroot");
3654 PUSHi( chroot(tmps) >= 0 );
3655 RETURN;
3656#else
cea2e8a9 3657 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3658#endif
3659}
3660
3661PP(pp_unlink)
3662{
39644a26 3663 dSP; dMARK; dTARGET;
a0d0e21e 3664 I32 value;
533c011a 3665 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3666 SP = MARK;
3667 PUSHi(value);
3668 RETURN;
3669}
3670
3671PP(pp_chmod)
3672{
39644a26 3673 dSP; dMARK; dTARGET;
a0d0e21e 3674 I32 value;
533c011a 3675 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3676 SP = MARK;
3677 PUSHi(value);
3678 RETURN;
3679}
3680
3681PP(pp_utime)
3682{
39644a26 3683 dSP; dMARK; dTARGET;
a0d0e21e 3684 I32 value;
533c011a 3685 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3686 SP = MARK;
3687 PUSHi(value);
3688 RETURN;
3689}
3690
3691PP(pp_rename)
3692{
39644a26 3693 dSP; dTARGET;
a0d0e21e 3694 int anum;
e62f0680
NC		 3695 const char *tmps2 = POPpconstx;
3696 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3697 TAINT_PROPER("rename");
3698#ifdef HAS_RENAME
baed7233 3699 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3700#else
6b88bc9c 3701 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3702 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3703 anum = 1;
3704 else {
3654eb6c 3705 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3706 (void)UNLINK(tmps2);
3707 if (!(anum = link(tmps, tmps2)))
3708 anum = UNLINK(tmps);
3709 }
a0d0e21e
LW		 3710 }
3711#endif
3712 SETi( anum >= 0 );
3713 RETURN;
3714}
3715
3716PP(pp_link)
3717{
a0d0e21e 3718#ifdef HAS_LINK
370f6000 3719 dSP; dTARGET;
e62f0680
NC		 3720 const char *tmps2 = POPpconstx;
3721 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3722 TAINT_PROPER("link");
146174a9 3723 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3724 RETURN;
a0d0e21e 3725#else
0322a713 3726 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3727#endif
a0d0e21e
LW		 3728}
3729
3730PP(pp_symlink)
3731{
a0d0e21e 3732#ifdef HAS_SYMLINK
9cad6237 3733 dSP; dTARGET;
83003860
NC		 3734 const char *tmps2 = POPpconstx;
3735 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3736 TAINT_PROPER("symlink");
3737 SETi( symlink(tmps, tmps2) >= 0 );
3738 RETURN;
3739#else
cea2e8a9 3740 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3741#endif
3742}
3743
3744PP(pp_readlink)
3745{
76ffd3b9 3746 dSP;
a0d0e21e 3747#ifdef HAS_SYMLINK
76ffd3b9 3748 dTARGET;
10516c54 3749 const char *tmps;
46fc3d4c 3750 char buf[MAXPATHLEN];
a0d0e21e 3751 int len;
46fc3d4c 3752
fb73857a 3753#ifndef INCOMPLETE_TAINTS
3754 TAINT;
3755#endif
10516c54 3756 tmps = POPpconstx;
97dcea33 3757 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3758 EXTEND(SP, 1);
3759 if (len < 0)
3760 RETPUSHUNDEF;
3761 PUSHp(buf, len);
3762 RETURN;
3763#else
3764 EXTEND(SP, 1);
3765 RETSETUNDEF; /* just pretend it's a normal file */
3766#endif
3767}
3768
3769#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3770STATIC int
b464bac0 3771S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3772{
b464bac0 3773 char * const save_filename = filename;
1e422769 3774 char *cmdline;
3775 char *s;
760ac839 3776 PerlIO *myfp;
1e422769 3777 int anum = 1;
a0d0e21e 3778
a02a5408 3779 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
1e422769 3780 strcpy(cmdline, cmd);
3781 strcat(cmdline, " ");
3782 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3783 *s++ = '\\';
3784 *s++ = *filename++;
3785 }
3786 strcpy(s, " 2>&1");
6ad3d225 3787 myfp = PerlProc_popen(cmdline, "r");
1e422769 3788 Safefree(cmdline);
3789
a0d0e21e 3790 if (myfp) {
1e422769 3791 SV *tmpsv = sv_newmortal();
6b88bc9c 3792 /* Need to save/restore 'PL_rs' ?? */
760ac839 3793 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3794 (void)PerlProc_pclose(myfp);
a0d0e21e 3795 if (s != Nullch) {
1e422769 3796 int e;
3797 for (e = 1;
a0d0e21e 3798#ifdef HAS_SYS_ERRLIST
1e422769 3799 e <= sys_nerr
3800#endif
3801 ; e++)
3802 {
3803 /* you don't see this */
3804 char *errmsg =
3805#ifdef HAS_SYS_ERRLIST
3806 sys_errlist[e]
a0d0e21e 3807#else
1e422769 3808 strerror(e)
a0d0e21e 3809#endif
1e422769 3810 ;
3811 if (!errmsg)
3812 break;
3813 if (instr(s, errmsg)) {
3814 SETERRNO(e,0);
3815 return 0;
3816 }
a0d0e21e 3817 }
748a9306 3818 SETERRNO(0,0);
a0d0e21e
LW		 3819#ifndef EACCES
3820#define EACCES EPERM
3821#endif
1e422769 3822 if (instr(s, "cannot make"))
93189314 3823 SETERRNO(EEXIST,RMS_FEX);
1e422769 3824 else if (instr(s, "existing file"))
93189314 3825 SETERRNO(EEXIST,RMS_FEX);
1e422769 3826 else if (instr(s, "ile exists"))
93189314 3827 SETERRNO(EEXIST,RMS_FEX);
1e422769 3828 else if (instr(s, "non-exist"))
93189314 3829 SETERRNO(ENOENT,RMS_FNF);
1e422769 3830 else if (instr(s, "does not exist"))
93189314 3831 SETERRNO(ENOENT,RMS_FNF);
1e422769 3832 else if (instr(s, "not empty"))
93189314 3833 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3834 else if (instr(s, "cannot access"))
93189314 3835 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3836 else
93189314 3837 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3838 return 0;
3839 }
3840 else { /* some mkdirs return no failure indication */
6b88bc9c 3841 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3842 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3843 anum = !anum;
3844 if (anum)
748a9306 3845 SETERRNO(0,0);
a0d0e21e 3846 else
93189314 3847 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3848 }
3849 return anum;
3850 }
3851 else
3852 return 0;
3853}
3854#endif
3855
0c54f65b
RGS		 3856/* This macro removes trailing slashes from a directory name.
3857 * Different operating and file systems take differently to
3858 * trailing slashes. According to POSIX 1003.1 1996 Edition
3859 * any number of trailing slashes should be allowed.
3860 * Thusly we snip them away so that even non-conforming
3861 * systems are happy.
3862 * We should probably do this "filtering" for all
3863 * the functions that expect (potentially) directory names:
3864 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3865 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3866
5c144d81 3867#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3868 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3869 do { \
3870 (len)--; \
3871 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3872 (tmps) = savepvn((tmps), (len)); \
3873 (copy) = TRUE; \
3874 }
3875
a0d0e21e
LW		 3876PP(pp_mkdir)
3877{
39644a26 3878 dSP; dTARGET;
5a211162 3879 int mode;
a0d0e21e
LW		 3880#ifndef HAS_MKDIR
3881 int oldumask;
3882#endif
df25ddba 3883 STRLEN len;
5c144d81 3884 const char *tmps;
df25ddba 3885 bool copy = FALSE;
5a211162
GS		 3886
3887 if (MAXARG > 1)
3888 mode = POPi;
3889 else
3890 mode = 0777;
3891
0c54f65b 3892 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3893
3894 TAINT_PROPER("mkdir");
3895#ifdef HAS_MKDIR
b8ffc8df 3896 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3897#else
3898 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3899 oldumask = PerlLIO_umask(0);
3900 PerlLIO_umask(oldumask);
3901 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3902#endif
df25ddba
JH		 3903 if (copy)
3904 Safefree(tmps);
a0d0e21e
LW		 3905 RETURN;
3906}
3907
3908PP(pp_rmdir)
3909{
39644a26 3910 dSP; dTARGET;
0c54f65b 3911 STRLEN len;
5c144d81 3912 const char *tmps;
0c54f65b 3913 bool copy = FALSE;
a0d0e21e 3914
0c54f65b 3915 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3916 TAINT_PROPER("rmdir");
3917#ifdef HAS_RMDIR
b8ffc8df 3918 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3919#else
0c54f65b 3920 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3921#endif
0c54f65b
RGS		 3922 if (copy)
3923 Safefree(tmps);
a0d0e21e
LW		 3924 RETURN;
3925}
3926
3927/* Directory calls. */
3928
3929PP(pp_open_dir)
3930{
a0d0e21e 3931#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3932 dSP;
10516c54 3933 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3934 GV *gv = (GV*)POPs;
3935 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3936
3937 if (!io)
3938 goto nope;
3939
3940 if (IoDIRP(io))
6ad3d225 3941 PerlDir_close(IoDIRP(io));
b8ffc8df 3942 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3943 goto nope;
3944
3945 RETPUSHYES;
3946nope:
3947 if (!errno)
93189314 3948 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3949 RETPUSHUNDEF;
3950#else
cea2e8a9 3951 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3952#endif
3953}
3954
3955PP(pp_readdir)
3956{
34b7f128
AMS		 3957#if !defined(Direntry_t) || !defined(HAS_READDIR)
3958 DIE(aTHX_ PL_no_dir_func, "readdir");
3959#else
fd8cd3a3 3960#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3961 Direntry_t *readdir (DIR *);
a0d0e21e 3962#endif
34b7f128
AMS		 3963 dSP;
3964
3965 SV *sv;
f54cb97a 3966 const I32 gimme = GIMME;
34b7f128 3967 GV *gv = (GV *)POPs;
a0d0e21e 3968 register Direntry_t *dp;
a0d0e21e
LW		 3969 register IO *io = GvIOn(gv);
3970
3971 if (!io || !IoDIRP(io))
3972 goto nope;
3973
34b7f128
AMS		 3974 do {
3975 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3976 if (!dp)
3977 break;
a0d0e21e 3978#ifdef DIRNAMLEN
34b7f128 3979 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3980#else
34b7f128 3981 sv = newSVpv(dp->d_name, 0);
fb73857a 3982#endif
3983#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3984 if (!(IoFLAGS(io) & IOf_UNTAINT))
3985 SvTAINTED_on(sv);
a0d0e21e 3986#endif
34b7f128 3987 XPUSHs(sv_2mortal(sv));
a0d0e21e 3988 }
34b7f128
AMS		 3989 while (gimme == G_ARRAY);
3990
3991 if (!dp && gimme != G_ARRAY)
3992 goto nope;
3993
a0d0e21e
LW		 3994 RETURN;
3995
3996nope:
3997 if (!errno)
93189314 3998 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3999 if (GIMME == G_ARRAY)
4000 RETURN;
4001 else
4002 RETPUSHUNDEF;
a0d0e21e
LW		 4003#endif
4004}
4005
4006PP(pp_telldir)
4007{
a0d0e21e 4008#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 4009 dVAR; dSP; dTARGET;
968dcd91
JH		 4010 /* XXX does _anyone_ need this? --AD 2/20/1998 */
4011 /* XXX netbsd still seemed to.
4012 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
4013 --JHI 1999-Feb-02 */
4014# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 4015 long telldir (DIR *);
dfe9444c 4016# endif
a0d0e21e
LW		 4017 GV *gv = (GV*)POPs;
4018 register IO *io = GvIOn(gv);
4019
4020 if (!io || !IoDIRP(io))
4021 goto nope;
4022
6ad3d225 4023 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 4024 RETURN;
4025nope:
4026 if (!errno)
93189314 4027 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4028 RETPUSHUNDEF;
4029#else
cea2e8a9 4030 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 4031#endif
4032}
4033
4034PP(pp_seekdir)
4035{
a0d0e21e 4036#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 4037 dSP;
a0d0e21e
LW		 4038 long along = POPl;
4039 GV *gv = (GV*)POPs;
4040 register IO *io = GvIOn(gv);
4041
4042 if (!io || !IoDIRP(io))
4043 goto nope;
4044
6ad3d225 4045 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4046
4047 RETPUSHYES;
4048nope:
4049 if (!errno)
93189314 4050 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4051 RETPUSHUNDEF;
4052#else
cea2e8a9 4053 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4054#endif
4055}
4056
4057PP(pp_rewinddir)
4058{
a0d0e21e 4059#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4060 dSP;
a0d0e21e
LW		 4061 GV *gv = (GV*)POPs;
4062 register IO *io = GvIOn(gv);
4063
4064 if (!io || !IoDIRP(io))
4065 goto nope;
4066
6ad3d225 4067 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4068 RETPUSHYES;
4069nope:
4070 if (!errno)
93189314 4071 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4072 RETPUSHUNDEF;
4073#else
cea2e8a9 4074 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4075#endif
4076}
4077
4078PP(pp_closedir)
4079{
a0d0e21e 4080#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4081 dSP;
a0d0e21e
LW		 4082 GV *gv = (GV*)POPs;
4083 register IO *io = GvIOn(gv);
4084
4085 if (!io || !IoDIRP(io))
4086 goto nope;
4087
4088#ifdef VOID_CLOSEDIR
6ad3d225 4089 PerlDir_close(IoDIRP(io));
a0d0e21e 4090#else
6ad3d225 4091 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4092 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4093 goto nope;
748a9306 4094 }
a0d0e21e
LW		 4095#endif
4096 IoDIRP(io) = 0;
4097
4098 RETPUSHYES;
4099nope:
4100 if (!errno)
93189314 4101 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4102 RETPUSHUNDEF;
4103#else
cea2e8a9 4104 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4105#endif
4106}
4107
4108/* Process control. */
4109
4110PP(pp_fork)
4111{
44a8e56a 4112#ifdef HAS_FORK
39644a26 4113 dSP; dTARGET;
761237fe 4114 Pid_t childpid;
a0d0e21e
LW		 4115 GV *tmpgv;
4116
4117 EXTEND(SP, 1);
45bc9206 4118 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4119 childpid = PerlProc_fork();
a0d0e21e
LW		 4120 if (childpid < 0)
4121 RETSETUNDEF;
4122 if (!childpid) {
306196c3
MS		 4123 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4124 SvREADONLY_off(GvSV(tmpgv));
146174a9 4125 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4126 SvREADONLY_on(GvSV(tmpgv));
4127 }
4d76a344
RGS		 4128#ifdef THREADS_HAVE_PIDS
4129 PL_ppid = (IV)getppid();
4130#endif
3280af22 4131 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4132 }
4133 PUSHi(childpid);
4134 RETURN;
4135#else
146174a9 4136# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4137 dSP; dTARGET;
146174a9
CB		 4138 Pid_t childpid;
4139
4140 EXTEND(SP, 1);
4141 PERL_FLUSHALL_FOR_CHILD;
4142 childpid = PerlProc_fork();
60fa28ff
GS		 4143 if (childpid == -1)
4144 RETSETUNDEF;
146174a9
CB		 4145 PUSHi(childpid);
4146 RETURN;
4147# else
0322a713 4148 DIE(aTHX_ PL_no_func, "fork");
146174a9 4149# endif
a0d0e21e
LW		 4150#endif
4151}
4152
4153PP(pp_wait)
4154{
301e8125 4155#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4156 dSP; dTARGET;
761237fe 4157 Pid_t childpid;
a0d0e21e 4158 int argflags;
a0d0e21e 4159
4ffa73a3
JH		 4160 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4161 childpid = wait4pid(-1, &argflags, 0);
4162 else {
4163 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4164 errno == EINTR) {
4165 PERL_ASYNC_CHECK();
4166 }
0a0ada86 4167 }
68a29c53
GS		 4168# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4169 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4170 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4171# else
2fbb330f 4172 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4173# endif
44a8e56a 4174 XPUSHi(childpid);
a0d0e21e
LW		 4175 RETURN;
4176#else
0322a713 4177 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4178#endif
4179}
4180
4181PP(pp_waitpid)
4182{
301e8125 4183#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4184 dSP; dTARGET;
2ec0bfb3
SG		 4185 Pid_t pid;
4186 Pid_t result;
a0d0e21e
LW		 4187 int optype;
4188 int argflags;
a0d0e21e 4189
a0d0e21e 4190 optype = POPi;
2ec0bfb3 4191 pid = TOPi;
4ffa73a3 4192 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4193 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4194 else {
2ec0bfb3 4195 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4196 errno == EINTR) {
4197 PERL_ASYNC_CHECK();
4198 }
0a0ada86 4199 }
68a29c53
GS		 4200# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4201 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4202 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4203# else
2fbb330f 4204 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4205# endif
2ec0bfb3 4206 SETi(result);
a0d0e21e
LW		 4207 RETURN;
4208#else
0322a713 4209 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4210#endif
4211}
4212
4213PP(pp_system)
4214{
39644a26 4215 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4216 I32 value;
76ffd3b9 4217 int result;
a0d0e21e 4218
bbd7eb8a
RD		 4219 if (PL_tainting) {
4220 TAINT_ENV();
4221 while (++MARK <= SP) {
10516c54 4222 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4223 if (PL_tainted)
bbd7eb8a
RD		 4224 break;
4225 }
4226 MARK = ORIGMARK;
5a445156 4227 TAINT_PROPER("system");
a0d0e21e 4228 }
45bc9206 4229 PERL_FLUSHALL_FOR_CHILD;
273b0206 4230#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4231 {
eb160463
GS		 4232 Pid_t childpid;
4233 int pp[2];
27da23d5 4234 I32 did_pipes = 0;
eb160463
GS		 4235
4236 if (PerlProc_pipe(pp) >= 0)
4237 did_pipes = 1;
4238 while ((childpid = PerlProc_fork()) == -1) {
4239 if (errno != EAGAIN) {
4240 value = -1;
4241 SP = ORIGMARK;
4242 PUSHi(value);
4243 if (did_pipes) {
4244 PerlLIO_close(pp[0]);
4245 PerlLIO_close(pp[1]);
4246 }
4247 RETURN;
4248 }
4249 sleep(5);
4250 }
4251 if (childpid > 0) {
4252 Sigsave_t ihand,qhand; /* place to save signals during system() */
4253 int status;
4254
4255 if (did_pipes)
4256 PerlLIO_close(pp[1]);
64ca3a65 4257#ifndef PERL_MICRO
8aad04aa
JH		 4258 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4259 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4260#endif
eb160463
GS		 4261 do {
4262 result = wait4pid(childpid, &status, 0);
4263 } while (result == -1 && errno == EINTR);
64ca3a65 4264#ifndef PERL_MICRO
eb160463
GS		 4265 (void)rsignal_restore(SIGINT, &ihand);
4266 (void)rsignal_restore(SIGQUIT, &qhand);
4267#endif
37038d91 4268 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4269 do_execfree(); /* free any memory child malloced on fork */
4270 SP = ORIGMARK;
4271 if (did_pipes) {
4272 int errkid;
4273 int n = 0, n1;
4274
4275 while (n < sizeof(int)) {
4276 n1 = PerlLIO_read(pp[0],
4277 (void*)(((char*)&errkid)+n),
4278 (sizeof(int)) - n);
4279 if (n1 <= 0)
4280 break;
4281 n += n1;
4282 }
4283 PerlLIO_close(pp[0]);
4284 if (n) { /* Error */
4285 if (n != sizeof(int))
4286 DIE(aTHX_ "panic: kid popen errno read");
4287 errno = errkid; /* Propagate errno from kid */
37038d91 4288 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4289 }
4290 }
4291 PUSHi(STATUS_CURRENT);
4292 RETURN;
4293 }
4294 if (did_pipes) {
4295 PerlLIO_close(pp[0]);
d5a9bfb0 4296#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4297 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4298#endif
eb160463 4299 }
e0a1f643
JH		 4300 if (PL_op->op_flags & OPf_STACKED) {
4301 SV *really = *++MARK;
4302 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4303 }
4304 else if (SP - MARK != 1)
4305 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4306 else {
8c074e2a 4307 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4308 }
4309 PerlProc__exit(-1);
d5a9bfb0 4310 }
c3293030 4311#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4312 PL_statusvalue = 0;
4313 result = 0;
911d147d 4314 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4315 SV *really = *++MARK;
a0fd4948 4316# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4317 value = (I32)do_aspawn(really, MARK, SP);
4318# else
c5be433b 4319 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4320# endif
a0d0e21e 4321 }
54725af6 4322 else if (SP - MARK != 1) {
a0fd4948 4323# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4324 value = (I32)do_aspawn(Nullsv, MARK, SP);
4325# else
c5be433b 4326 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4327# endif
4328 }
a0d0e21e 4329 else {
8c074e2a 4330 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4331 }
922b1888
GS		 4332 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4333 result = 1;
2fbb330f 4334 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4335 do_execfree();
4336 SP = ORIGMARK;
922b1888 4337 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4338#endif /* !FORK or VMS */
4339 RETURN;
4340}
4341
4342PP(pp_exec)
4343{
39644a26 4344 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4345 I32 value;
4346
bbd7eb8a
RD		 4347 if (PL_tainting) {
4348 TAINT_ENV();
4349 while (++MARK <= SP) {
10516c54 4350 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4351 if (PL_tainted)
bbd7eb8a
RD		 4352 break;
4353 }
4354 MARK = ORIGMARK;
5a445156 4355 TAINT_PROPER("exec");
bbd7eb8a 4356 }
45bc9206 4357 PERL_FLUSHALL_FOR_CHILD;
533c011a 4358 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4359 SV *really = *++MARK;
4360 value = (I32)do_aexec(really, MARK, SP);
4361 }
4362 else if (SP - MARK != 1)
4363#ifdef VMS
4364 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4365#else
092bebab
JH		 4366# ifdef __OPEN_VM
4367 {
c5be433b 4368 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4369 value = 0;
4370 }
4371# else
a0d0e21e 4372 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4373# endif
a0d0e21e
LW		 4374#endif
4375 else {
a0d0e21e 4376#ifdef VMS
8c074e2a 4377 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4378#else
092bebab 4379# ifdef __OPEN_VM
8c074e2a 4380 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4381 value = 0;
4382# else
8c074e2a 4383 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4384# endif
a0d0e21e
LW		 4385#endif
4386 }
146174a9 4387
a0d0e21e
LW		 4388 SP = ORIGMARK;
4389 PUSHi(value);
4390 RETURN;
4391}
4392
4393PP(pp_kill)
4394{
9cad6237 4395#ifdef HAS_KILL
39644a26 4396 dSP; dMARK; dTARGET;
a0d0e21e 4397 I32 value;
533c011a 4398 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4399 SP = MARK;
4400 PUSHi(value);
4401 RETURN;
4402#else
0322a713 4403 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4404#endif
4405}
4406
4407PP(pp_getppid)
4408{
4409#ifdef HAS_GETPPID
39644a26 4410 dSP; dTARGET;
4d76a344 4411# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4412 if (PL_ppid != 1 && getppid() == 1)
4413 /* maybe the parent process has died. Refresh ppid cache */
4414 PL_ppid = 1;
4d76a344
RGS		 4415 XPUSHi( PL_ppid );
4416# else
a0d0e21e 4417 XPUSHi( getppid() );
4d76a344 4418# endif
a0d0e21e
LW		 4419 RETURN;
4420#else
cea2e8a9 4421 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4422#endif
4423}
4424
4425PP(pp_getpgrp)
4426{
4427#ifdef HAS_GETPGRP
39644a26 4428 dSP; dTARGET;
d8a83dd3 4429 Pid_t pid;
9853a804 4430 Pid_t pgrp;
a0d0e21e
LW		 4431
4432 if (MAXARG < 1)
4433 pid = 0;
4434 else
4435 pid = SvIVx(POPs);
c3293030 4436#ifdef BSD_GETPGRP
9853a804 4437 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4438#else
146174a9 4439 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4440 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4441 pgrp = getpgrp();
a0d0e21e 4442#endif
9853a804 4443 XPUSHi(pgrp);
a0d0e21e
LW		 4444 RETURN;
4445#else
cea2e8a9 4446 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4447#endif
4448}
4449
4450PP(pp_setpgrp)
4451{
4452#ifdef HAS_SETPGRP
39644a26 4453 dSP; dTARGET;
d8a83dd3
JH		 4454 Pid_t pgrp;
4455 Pid_t pid;
a0d0e21e
LW		 4456 if (MAXARG < 2) {
4457 pgrp = 0;
4458 pid = 0;
4459 }
4460 else {
4461 pgrp = POPi;
4462 pid = TOPi;
4463 }
4464
4465 TAINT_PROPER("setpgrp");
c3293030
IZ		 4466#ifdef BSD_SETPGRP
4467 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4468#else
146174a9
CB		 4469 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4470 || (pid != 0 && pid != PerlProc_getpid()))
4471 {
4472 DIE(aTHX_ "setpgrp can't take arguments");
4473 }
a0d0e21e
LW		 4474 SETi( setpgrp() >= 0 );
4475#endif /* USE_BSDPGRP */
4476 RETURN;
4477#else
cea2e8a9 4478 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4479#endif
4480}
4481
4482PP(pp_getpriority)
4483{
a0d0e21e 4484#ifdef HAS_GETPRIORITY
9cad6237 4485 dSP; dTARGET;
d05c1ba0
JH		 4486 int who = POPi;
4487 int which = TOPi;
a0d0e21e
LW		 4488 SETi( getpriority(which, who) );
4489 RETURN;
4490#else
cea2e8a9 4491 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4492#endif
4493}
4494
4495PP(pp_setpriority)
4496{
a0d0e21e 4497#ifdef HAS_SETPRIORITY
9cad6237 4498 dSP; dTARGET;
d05c1ba0
JH		 4499 int niceval = POPi;
4500 int who = POPi;
4501 int which = TOPi;
a0d0e21e
LW		 4502 TAINT_PROPER("setpriority");
4503 SETi( setpriority(which, who, niceval) >= 0 );
4504 RETURN;
4505#else
cea2e8a9 4506 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4507#endif
4508}
4509
4510/* Time calls. */
4511
4512PP(pp_time)
4513{
39644a26 4514 dSP; dTARGET;
cbdc8872 4515#ifdef BIG_TIME
4516 XPUSHn( time(Null(Time_t*)) );
4517#else
a0d0e21e 4518 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4519#endif
a0d0e21e
LW		 4520 RETURN;
4521}
4522
a0d0e21e
LW		 4523PP(pp_tms)
4524{
9cad6237 4525#ifdef HAS_TIMES
39644a26 4526 dSP;
a0d0e21e 4527 EXTEND(SP, 4);
a0d0e21e 4528#ifndef VMS
3280af22 4529 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4530#else
6b88bc9c 4531 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4532 /* struct tms, though same data */
4533 /* is returned. */
a0d0e21e
LW		 4534#endif
4535
5311654c 4536 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4537 if (GIMME == G_ARRAY) {
5311654c
JH		 4538 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4539 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4540 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4541 }
4542 RETURN;
9cad6237 4543#else
2f42fcb0
JH		 4544# ifdef PERL_MICRO
4545 dSP;
4546 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4547 EXTEND(SP, 4);
4548 if (GIMME == G_ARRAY) {
4549 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4550 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4551 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4552 }
4553 RETURN;
4554# else
9cad6237 4555 DIE(aTHX_ "times not implemented");
2f42fcb0 4556# endif
55497cff 4557#endif /* HAS_TIMES */
a0d0e21e
LW		 4558}
4559
4560PP(pp_localtime)
4561{
cea2e8a9 4562 return pp_gmtime();
a0d0e21e
LW		 4563}
4564
a4323dee 4565#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4566static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4567{
4568 auto time_t T;
4569 auto struct tm *P;
4570
4571 /* No workarounds in the valid range */
4572 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4573 return (localtime (tp));
4574
4575 /* This edge case is to workaround the undefined behaviour, where the
4576 * TIMEZONE makes the time go beyond the defined range.
4577 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4578 * If there is a negative offset in TZ, like MET-1METDST, some broken
4579 * implementations of localtime () (like AIX 5.2) barf with bogus
4580 * return values:
4581 * 0x7fffffff gmtime 2038-01-19 03:14:07
4582 * 0x7fffffff localtime 1901-12-13 21:45:51
4583 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4584 * 0x3c19137f gmtime 2001-12-13 20:45:51
4585 * 0x3c19137f localtime 2001-12-13 21:45:51
4586 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4587 * Given that legal timezones are typically between GMT-12 and GMT+12
4588 * we turn back the clock 23 hours before calling the localtime
4589 * function, and add those to the return value. This will never cause
3574fba9 4590 * day wrapping problems, since the edge case is Tue Jan *19*
a4323dee
MB		 4591 */
4592 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4593 P = localtime (&T);
4594 P->tm_hour += 23;
4595 if (P->tm_hour >= 24) {
4596 P->tm_hour -= 24;
3574fba9
CW		 4597 P->tm_mday++; /* 18 -> 19 */
4598 P->tm_wday++; /* Mon -> Tue */
4599 P->tm_yday++; /* 18 -> 19 */
a4323dee
MB		 4600 }
4601 return (P);
4602} /* S_my_localtime */
4603#endif
4604
a0d0e21e
LW		 4605PP(pp_gmtime)
4606{
39644a26 4607 dSP;
a0d0e21e 4608 Time_t when;
bfed75c6 4609 const struct tm *tmbuf;
27da23d5
JH		 4610 static const char * const dayname[] =
4611 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4612 static const char * const monname[] =
4613 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4614 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4615
4616 if (MAXARG < 1)
4617 (void)time(&when);
4618 else
cbdc8872 4619#ifdef BIG_TIME
4620 when = (Time_t)SvNVx(POPs);
4621#else
a0d0e21e 4622 when = (Time_t)SvIVx(POPs);
cbdc8872 4623#endif
a0d0e21e 4624
533c011a 4625 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4626#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4627 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4628#else
a0d0e21e 4629 tmbuf = localtime(&when);
a4323dee 4630#endif
a0d0e21e
LW		 4631 else
4632 tmbuf = gmtime(&when);
4633
a0d0e21e 4634 if (GIMME != G_ARRAY) {
46fc3d4c 4635 SV *tsv;
9a5ff6d9
AB		 4636 EXTEND(SP, 1);
4637 EXTEND_MORTAL(1);
a0d0e21e
LW		 4638 if (!tmbuf)
4639 RETPUSHUNDEF;
be28567c 4640 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4641 dayname[tmbuf->tm_wday],
4642 monname[tmbuf->tm_mon],
be28567c
GS		 4643 tmbuf->tm_mday,
4644 tmbuf->tm_hour,
4645 tmbuf->tm_min,
4646 tmbuf->tm_sec,
4647 tmbuf->tm_year + 1900);
46fc3d4c 4648 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4649 }
4650 else if (tmbuf) {
9a5ff6d9
AB		 4651 EXTEND(SP, 9);
4652 EXTEND_MORTAL(9);
4653 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4654 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4655 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4656 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4657 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4658 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4659 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4660 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4661 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4662 }
4663 RETURN;
4664}
4665
4666PP(pp_alarm)
4667{
9cad6237 4668#ifdef HAS_ALARM
39644a26 4669 dSP; dTARGET;
a0d0e21e 4670 int anum;
a0d0e21e
LW		 4671 anum = POPi;
4672 anum = alarm((unsigned int)anum);
4673 EXTEND(SP, 1);
4674 if (anum < 0)
4675 RETPUSHUNDEF;
c6419e06 4676 PUSHi(anum);
a0d0e21e
LW		 4677 RETURN;
4678#else
0322a713 4679 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4680#endif
4681}
4682
4683PP(pp_sleep)
4684{
39644a26 4685 dSP; dTARGET;
a0d0e21e
LW		 4686 I32 duration;
4687 Time_t lasttime;
4688 Time_t when;
4689
4690 (void)time(&lasttime);
4691 if (MAXARG < 1)
76e3520e 4692 PerlProc_pause();
a0d0e21e
LW		 4693 else {
4694 duration = POPi;
76e3520e 4695 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4696 }
4697 (void)time(&when);
4698 XPUSHi(when - lasttime);
4699 RETURN;
4700}
4701
4702/* Shared memory. */
4703
4704PP(pp_shmget)
4705{
cea2e8a9 4706 return pp_semget();
a0d0e21e
LW		 4707}
4708
4709PP(pp_shmctl)
4710{
cea2e8a9 4711 return pp_semctl();
a0d0e21e
LW		 4712}
4713
4714PP(pp_shmread)
4715{
cea2e8a9 4716 return pp_shmwrite();
a0d0e21e
LW		 4717}
4718
4719PP(pp_shmwrite)
4720{
4721#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4722 dSP; dMARK; dTARGET;
533c011a 4723 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4724 SP = MARK;
4725 PUSHi(value);
4726 RETURN;
4727#else
cea2e8a9 4728 return pp_semget();
a0d0e21e
LW		 4729#endif
4730}
4731
4732/* Message passing. */
4733
4734PP(pp_msgget)
4735{
cea2e8a9 4736 return pp_semget();
a0d0e21e
LW		 4737}
4738
4739PP(pp_msgctl)
4740{
cea2e8a9 4741 return pp_semctl();
a0d0e21e
LW		 4742}
4743
4744PP(pp_msgsnd)
4745{
4746#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4747 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4748 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4749 SP = MARK;
4750 PUSHi(value);
4751 RETURN;
4752#else
cea2e8a9 4753 return pp_semget();
a0d0e21e
LW		 4754#endif
4755}
4756
4757PP(pp_msgrcv)
4758{
4759#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4760 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4761 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4762 SP = MARK;
4763 PUSHi(value);
4764 RETURN;
4765#else
cea2e8a9 4766 return pp_semget();
a0d0e21e
LW		 4767#endif
4768}
4769
4770/* Semaphores. */
4771
4772PP(pp_semget)
4773{
4774#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4775 dSP; dMARK; dTARGET;
533c011a 4776 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4777 SP = MARK;
4778 if (anum == -1)
4779 RETPUSHUNDEF;
4780 PUSHi(anum);
4781 RETURN;
4782#else
cea2e8a9 4783 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4784#endif
4785}
4786
4787PP(pp_semctl)
4788{
4789#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4790 dSP; dMARK; dTARGET;
533c011a 4791 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4792 SP = MARK;
4793 if (anum == -1)
4794 RETSETUNDEF;
4795 if (anum != 0) {
4796 PUSHi(anum);
4797 }
4798 else {
8903cb82 4799 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4800 }
4801 RETURN;
4802#else
cea2e8a9 4803 return pp_semget();
a0d0e21e
LW		 4804#endif
4805}
4806
4807PP(pp_semop)
4808{
4809#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4810 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4811 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4812 SP = MARK;
4813 PUSHi(value);
4814 RETURN;
4815#else
cea2e8a9 4816 return pp_semget();
a0d0e21e
LW		 4817#endif
4818}
4819
4820/* Get system info. */
4821
4822PP(pp_ghbyname)
4823{
693762b4 4824#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4825 return pp_ghostent();
a0d0e21e 4826#else
cea2e8a9 4827 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4828#endif
4829}
4830
4831PP(pp_ghbyaddr)
4832{
693762b4 4833#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4834 return pp_ghostent();
a0d0e21e 4835#else
cea2e8a9 4836 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4837#endif
4838}
4839
4840PP(pp_ghostent)
4841{
693762b4 4842#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4843 dSP;
533c011a 4844 I32 which = PL_op->op_type;
a0d0e21e
LW		 4845 register char **elem;
4846 register SV *sv;
dc45a647 4847#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4848 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4849 struct hostent *gethostbyname(Netdb_name_t);
4850 struct hostent *gethostent(void);
a0d0e21e
LW		 4851#endif
4852 struct hostent *hent;
4853 unsigned long len;
4854
4855 EXTEND(SP, 10);
edd309b7 4856 if (which == OP_GHBYNAME) {
dc45a647 4857#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4858 char* name = POPpbytex;
4859 hent = PerlSock_gethostbyname(name);
dc45a647 4860#else
cea2e8a9 4861 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4862#endif
edd309b7 4863 }
a0d0e21e 4864 else if (which == OP_GHBYADDR) {
dc45a647 4865#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4866 int addrtype = POPi;
748a9306 4867 SV *addrsv = POPs;
a0d0e21e 4868 STRLEN addrlen;
595ae481 4869 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4870
4599a1de 4871 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4872#else
cea2e8a9 4873 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4874#endif
a0d0e21e
LW		 4875 }
4876 else
4877#ifdef HAS_GETHOSTENT
6ad3d225 4878 hent = PerlSock_gethostent();
a0d0e21e 4879#else
cea2e8a9 4880 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4881#endif
4882
4883#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4884 if (!hent) {
4885#ifdef USE_REENTRANT_API
4886# ifdef USE_GETHOSTENT_ERRNO
4887 h_errno = PL_reentrant_buffer->_gethostent_errno;
4888# endif
4889#endif
37038d91 4890 STATUS_UNIX_SET(h_errno);
10bc17b6 4891 }
a0d0e21e
LW		 4892#endif
4893
4894 if (GIMME != G_ARRAY) {
4895 PUSHs(sv = sv_newmortal());
4896 if (hent) {
4897 if (which == OP_GHBYNAME) {
fd0af264 4898 if (hent->h_addr)
4899 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4900 }
4901 else
4902 sv_setpv(sv, (char*)hent->h_name);
4903 }
4904 RETURN;
4905 }
4906
4907 if (hent) {
3280af22 4908 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4909 sv_setpv(sv, (char*)hent->h_name);
3280af22 4910 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4911 for (elem = hent->h_aliases; elem && *elem; elem++) {
4912 sv_catpv(sv, *elem);
4913 if (elem[1])
4914 sv_catpvn(sv, " ", 1);
4915 }
3280af22 4916 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4917 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4919 len = hent->h_length;
1e422769 4920 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4921#ifdef h_addr
4922 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4923 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4924 sv_setpvn(sv, *elem, len);
4925 }
4926#else
6b88bc9c 4927 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4928 if (hent->h_addr)
4929 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4930#endif /* h_addr */
4931 }
4932 RETURN;
4933#else
cea2e8a9 4934 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4935#endif
4936}
4937
4938PP(pp_gnbyname)
4939{
693762b4 4940#ifdef HAS_GETNETBYNAME
cea2e8a9 4941 return pp_gnetent();
a0d0e21e 4942#else
cea2e8a9 4943 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4944#endif
4945}
4946
4947PP(pp_gnbyaddr)
4948{
693762b4 4949#ifdef HAS_GETNETBYADDR
cea2e8a9 4950 return pp_gnetent();
a0d0e21e 4951#else
cea2e8a9 4952 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4953#endif
4954}
4955
4956PP(pp_gnetent)
4957{
693762b4 4958#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4959 dSP;
533c011a 4960 I32 which = PL_op->op_type;
a0d0e21e
LW		 4961 register char **elem;
4962 register SV *sv;
dc45a647 4963#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4964 struct netent *getnetbyaddr(Netdb_net_t, int);
4965 struct netent *getnetbyname(Netdb_name_t);
4966 struct netent *getnetent(void);
8ac85365 4967#endif
a0d0e21e
LW		 4968 struct netent *nent;
4969
edd309b7 4970 if (which == OP_GNBYNAME){
dc45a647 4971#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4972 char *name = POPpbytex;
4973 nent = PerlSock_getnetbyname(name);
dc45a647 4974#else
cea2e8a9 4975 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4976#endif
edd309b7 4977 }
a0d0e21e 4978 else if (which == OP_GNBYADDR) {
dc45a647 4979#ifdef HAS_GETNETBYADDR
a0d0e21e 4980 int addrtype = POPi;
3bb7c1b4 4981 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4982 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4983#else
cea2e8a9 4984 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4985#endif
a0d0e21e
LW		 4986 }
4987 else
dc45a647 4988#ifdef HAS_GETNETENT
76e3520e 4989 nent = PerlSock_getnetent();
dc45a647 4990#else
cea2e8a9 4991 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4992#endif
a0d0e21e 4993
10bc17b6
JH		 4994#ifdef HOST_NOT_FOUND
4995 if (!nent) {
4996#ifdef USE_REENTRANT_API
4997# ifdef USE_GETNETENT_ERRNO
4998 h_errno = PL_reentrant_buffer->_getnetent_errno;
4999# endif
5000#endif
37038d91 5001 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 5002 }
5003#endif
5004
a0d0e21e
LW		 5005 EXTEND(SP, 4);
5006 if (GIMME != G_ARRAY) {
5007 PUSHs(sv = sv_newmortal());
5008 if (nent) {
5009 if (which == OP_GNBYNAME)
1e422769 5010 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 5011 else
5012 sv_setpv(sv, nent->n_name);
5013 }
5014 RETURN;
5015 }
5016
5017 if (nent) {
3280af22 5018 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5019 sv_setpv(sv, nent->n_name);
3280af22 5020 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5021 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5022 sv_catpv(sv, *elem);
5023 if (elem[1])
5024 sv_catpvn(sv, " ", 1);
5025 }
3280af22 5026 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5027 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 5028 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5029 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 5030 }
5031
5032 RETURN;
5033#else
cea2e8a9 5034 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 5035#endif
5036}
5037
5038PP(pp_gpbyname)
5039{
693762b4 5040#ifdef HAS_GETPROTOBYNAME
cea2e8a9 5041 return pp_gprotoent();
a0d0e21e 5042#else
cea2e8a9 5043 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 5044#endif
5045}
5046
5047PP(pp_gpbynumber)
5048{
693762b4 5049#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 5050 return pp_gprotoent();
a0d0e21e 5051#else
cea2e8a9 5052 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 5053#endif
5054}
5055
5056PP(pp_gprotoent)
5057{
693762b4 5058#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 5059 dSP;
533c011a 5060 I32 which = PL_op->op_type;
a0d0e21e 5061 register char **elem;
301e8125 5062 register SV *sv;
dc45a647 5063#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5064 struct protoent *getprotobyname(Netdb_name_t);
5065 struct protoent *getprotobynumber(int);
5066 struct protoent *getprotoent(void);
8ac85365 5067#endif
a0d0e21e
LW		 5068 struct protoent *pent;
5069
edd309b7 5070 if (which == OP_GPBYNAME) {
e5c9fcd0 5071#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 5072 char* name = POPpbytex;
5073 pent = PerlSock_getprotobyname(name);
e5c9fcd0 5074#else
cea2e8a9 5075 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 5076#endif
edd309b7
JH		 5077 }
5078 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 5079#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 5080 int number = POPi;
5081 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 5082#else
edd309b7 5083 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 5084#endif
edd309b7 5085 }
a0d0e21e 5086 else
e5c9fcd0 5087#ifdef HAS_GETPROTOENT
6ad3d225 5088 pent = PerlSock_getprotoent();
e5c9fcd0 5089#else
cea2e8a9 5090 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5091#endif
a0d0e21e
LW		 5092
5093 EXTEND(SP, 3);
5094 if (GIMME != G_ARRAY) {
5095 PUSHs(sv = sv_newmortal());
5096 if (pent) {
5097 if (which == OP_GPBYNAME)
1e422769 5098 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5099 else
5100 sv_setpv(sv, pent->p_name);
5101 }
5102 RETURN;
5103 }
5104
5105 if (pent) {
3280af22 5106 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5107 sv_setpv(sv, pent->p_name);
3280af22 5108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5109 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5110 sv_catpv(sv, *elem);
5111 if (elem[1])
5112 sv_catpvn(sv, " ", 1);
5113 }
3280af22 5114 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5115 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5116 }
5117
5118 RETURN;
5119#else
cea2e8a9 5120 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5121#endif
5122}
5123
5124PP(pp_gsbyname)
5125{
9ec75305 5126#ifdef HAS_GETSERVBYNAME
cea2e8a9 5127 return pp_gservent();
a0d0e21e 5128#else
cea2e8a9 5129 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5130#endif
5131}
5132
5133PP(pp_gsbyport)
5134{
9ec75305 5135#ifdef HAS_GETSERVBYPORT
cea2e8a9 5136 return pp_gservent();
a0d0e21e 5137#else
cea2e8a9 5138 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5139#endif
5140}
5141
5142PP(pp_gservent)
5143{
693762b4 5144#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5145 dSP;
533c011a 5146 I32 which = PL_op->op_type;
a0d0e21e
LW		 5147 register char **elem;
5148 register SV *sv;
dc45a647 5149#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5150 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5151 struct servent *getservbyport(int, Netdb_name_t);
5152 struct servent *getservent(void);
8ac85365 5153#endif
a0d0e21e
LW		 5154 struct servent *sent;
5155
5156 if (which == OP_GSBYNAME) {
dc45a647 5157#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5158 char *proto = POPpbytex;
5159 char *name = POPpbytex;
a0d0e21e
LW		 5160
5161 if (proto && !*proto)
5162 proto = Nullch;
5163
6ad3d225 5164 sent = PerlSock_getservbyname(name, proto);
dc45a647 5165#else
cea2e8a9 5166 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5167#endif
a0d0e21e
LW		 5168 }
5169 else if (which == OP_GSBYPORT) {
dc45a647 5170#ifdef HAS_GETSERVBYPORT
42e0c139 5171 char *proto = POPpbytex;
eb160463 5172 unsigned short port = (unsigned short)POPu;
a0d0e21e 5173
2b872cca
SR		 5174 if (proto && !*proto)
5175 proto = Nullch;
5176
36477c24 5177#ifdef HAS_HTONS
6ad3d225 5178 port = PerlSock_htons(port);
36477c24 5179#endif
6ad3d225 5180 sent = PerlSock_getservbyport(port, proto);
dc45a647 5181#else
cea2e8a9 5182 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5183#endif
a0d0e21e
LW		 5184 }
5185 else
e5c9fcd0 5186#ifdef HAS_GETSERVENT
6ad3d225 5187 sent = PerlSock_getservent();
e5c9fcd0 5188#else
cea2e8a9 5189 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5190#endif
a0d0e21e
LW		 5191
5192 EXTEND(SP, 4);
5193 if (GIMME != G_ARRAY) {
5194 PUSHs(sv = sv_newmortal());
5195 if (sent) {
5196 if (which == OP_GSBYNAME) {
5197#ifdef HAS_NTOHS
6ad3d225 5198 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5199#else
1e422769 5200 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5201#endif
5202 }
5203 else
5204 sv_setpv(sv, sent->s_name);
5205 }
5206 RETURN;
5207 }
5208
5209 if (sent) {
3280af22 5210 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5211 sv_setpv(sv, sent->s_name);
3280af22 5212 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5213 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5214 sv_catpv(sv, *elem);
5215 if (elem[1])
5216 sv_catpvn(sv, " ", 1);
5217 }
3280af22 5218 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5219#ifdef HAS_NTOHS
76e3520e 5220 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5221#else
1e422769 5222 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5223#endif
3280af22 5224 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5225 sv_setpv(sv, sent->s_proto);
5226 }
5227
5228 RETURN;
5229#else
cea2e8a9 5230 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5231#endif
5232}
5233
5234PP(pp_shostent)
5235{
693762b4 5236#ifdef HAS_SETHOSTENT
9cad6237 5237 dSP;
76e3520e 5238 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5239 RETSETYES;
5240#else
cea2e8a9 5241 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5242#endif
5243}
5244
5245PP(pp_snetent)
5246{
693762b4 5247#ifdef HAS_SETNETENT
9cad6237 5248 dSP;
76e3520e 5249 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5250 RETSETYES;
5251#else
cea2e8a9 5252 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5253#endif
5254}
5255
5256PP(pp_sprotoent)
5257{
693762b4 5258#ifdef HAS_SETPROTOENT
9cad6237 5259 dSP;
76e3520e 5260 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5261 RETSETYES;
5262#else
cea2e8a9 5263 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5264#endif
5265}
5266
5267PP(pp_sservent)
5268{
693762b4 5269#ifdef HAS_SETSERVENT
9cad6237 5270 dSP;
76e3520e 5271 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5272 RETSETYES;
5273#else
cea2e8a9 5274 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5275#endif
5276}
5277
5278PP(pp_ehostent)
5279{
693762b4 5280#ifdef HAS_ENDHOSTENT
9cad6237 5281 dSP;
76e3520e 5282 PerlSock_endhostent();
924508f0 5283 EXTEND(SP,1);
a0d0e21e
LW		 5284 RETPUSHYES;
5285#else
cea2e8a9 5286 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5287#endif
5288}
5289
5290PP(pp_enetent)
5291{
693762b4 5292#ifdef HAS_ENDNETENT
9cad6237 5293 dSP;
76e3520e 5294 PerlSock_endnetent();
924508f0 5295 EXTEND(SP,1);
a0d0e21e
LW		 5296 RETPUSHYES;
5297#else
cea2e8a9 5298 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5299#endif
5300}
5301
5302PP(pp_eprotoent)
5303{
693762b4 5304#ifdef HAS_ENDPROTOENT
9cad6237 5305 dSP;
76e3520e 5306 PerlSock_endprotoent();
924508f0 5307 EXTEND(SP,1);
a0d0e21e
LW		 5308 RETPUSHYES;
5309#else
cea2e8a9 5310 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5311#endif
5312}
5313
5314PP(pp_eservent)
5315{
693762b4 5316#ifdef HAS_ENDSERVENT
9cad6237 5317 dSP;
76e3520e 5318 PerlSock_endservent();
924508f0 5319 EXTEND(SP,1);
a0d0e21e
LW		 5320 RETPUSHYES;
5321#else
cea2e8a9 5322 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5323#endif
5324}
5325
5326PP(pp_gpwnam)
5327{
5328#ifdef HAS_PASSWD
cea2e8a9 5329 return pp_gpwent();
a0d0e21e 5330#else
cea2e8a9 5331 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5332#endif
5333}
5334
5335PP(pp_gpwuid)
5336{
5337#ifdef HAS_PASSWD
cea2e8a9 5338 return pp_gpwent();
a0d0e21e 5339#else
cea2e8a9 5340 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5341#endif
5342}
5343
5344PP(pp_gpwent)
5345{
0994c4d0 5346#ifdef HAS_PASSWD
9cad6237 5347 dSP;
533c011a 5348 I32 which = PL_op->op_type;
a0d0e21e 5349 register SV *sv;
e3aefe8d 5350 struct passwd *pwent = NULL;
301e8125 5351 /*
bcf53261
JH		 5352 * We currently support only the SysV getsp* shadow password interface.
5353 * The interface is declared in <shadow.h> and often one needs to link
5354 * with -lsecurity or some such.
5355 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5356 * (and SCO?)
5357 *
5358 * AIX getpwnam() is clever enough to return the encrypted password
5359 * only if the caller (euid?) is root.
5360 *
e549f1c5 5361 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5362 * seem to contain more than one interface for accessing the shadow
5363 * password databases, possibly for compatibility reasons.
3813c136 5364 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5365 * are much more complicated, but also very similar to each other.
5366 *
5367 * <sys/types.h>
5368 * <sys/security.h>
5369 * <prot.h>
5370 * struct pr_passwd *getprpw*();
5371 * The password is in
3813c136
JH		 5372 * char getprpw*(...).ufld.fd_encrypt[]
5373 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5374 *
5375 * <sys/types.h>
5376 * <sys/security.h>
5377 * <prot.h>
5378 * struct es_passwd *getespw*();
5379 * The password is in
5380 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5381 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5382 *
e1920a95 5383 * <userpw.h> (AIX)
e549f1c5
JH		 5384 * struct userpw *getuserpw();
5385 * The password is in
5386 * char *(getuserpw(...)).spw_upw_passwd
5387 * (but the de facto standard getpwnam() should work okay)
5388 *
3813c136 5389 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5390 *
5391 * In HP-UX for getprpw*() the manual page claims that one should include
5392 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5393 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5394 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5395 *
5396 * Note that <sys/security.h> is already probed for, but currently
5397 * it is only included in special cases.
301e8125 5398 *
bcf53261
JH		 5399 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5400 * be preferred interface, even though also the getprpw*() interface
5401 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5402 * One also needs to call set_auth_parameters() in main() before
5403 * doing anything else, whether one is using getespw*() or getprpw*().
5404 *
5405 * Note that accessing the shadow databases can be magnitudes
5406 * slower than accessing the standard databases.
bcf53261
JH		 5407 *
5408 * --jhi
5409 */
a0d0e21e 5410
9e5f0c48
JH		 5411# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5412 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5413 * the pw_comment is left uninitialized. */
5414 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5415# endif
5416
e3aefe8d
JH		 5417 switch (which) {
5418 case OP_GPWNAM:
edd309b7
JH		 5419 {
5420 char* name = POPpbytex;
5421 pwent = getpwnam(name);
5422 }
5423 break;
e3aefe8d 5424 case OP_GPWUID:
edd309b7
JH		 5425 {
5426 Uid_t uid = POPi;
5427 pwent = getpwuid(uid);
5428 }
e3aefe8d
JH		 5429 break;
5430 case OP_GPWENT:
1883634f 5431# ifdef HAS_GETPWENT
e3aefe8d 5432 pwent = getpwent();
faea9016
IRC		 5433#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5434 if (pwent) pwent = getpwnam(pwent->pw_name);
5435#endif
1883634f 5436# else
a45d1c96 5437 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5438# endif
e3aefe8d
JH		 5439 break;
5440 }
8c0bfa08 5441
a0d0e21e
LW		 5442 EXTEND(SP, 10);
5443 if (GIMME != G_ARRAY) {
5444 PUSHs(sv = sv_newmortal());
5445 if (pwent) {
5446 if (which == OP_GPWNAM)
1883634f 5447# if Uid_t_sign <= 0
1e422769 5448 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5449# else
23dcd6c8 5450 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5451# endif
a0d0e21e
LW		 5452 else
5453 sv_setpv(sv, pwent->pw_name);
5454 }
5455 RETURN;
5456 }
5457
5458 if (pwent) {
3280af22 5459 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5460 sv_setpv(sv, pwent->pw_name);
6ee623d5 5461
3280af22 5462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5463 SvPOK_off(sv);
5464 /* If we have getspnam(), we try to dig up the shadow
5465 * password. If we are underprivileged, the shadow
5466 * interface will set the errno to EACCES or similar,
5467 * and return a null pointer. If this happens, we will
5468 * use the dummy password (usually "*" or "x") from the
5469 * standard password database.
5470 *
5471 * In theory we could skip the shadow call completely
5472 * if euid != 0 but in practice we cannot know which
5473 * security measures are guarding the shadow databases
5474 * on a random platform.
5475 *
5476 * Resist the urge to use additional shadow interfaces.
5477 * Divert the urge to writing an extension instead.
5478 *
5479 * --jhi */
e549f1c5
JH		 5480 /* Some AIX setups falsely(?) detect some getspnam(), which
5481 * has a different API than the Solaris/IRIX one. */
5482# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5483 {
5484 struct spwd *spwent;
5485 int saverrno; /* Save and restore errno so that
5486 * underprivileged attempts seem
5487 * to have never made the unsccessful
5488 * attempt to retrieve the shadow password. */
5489
5490 saverrno = errno;
5491 spwent = getspnam(pwent->pw_name);
5492 errno = saverrno;
5493 if (spwent && spwent->sp_pwdp)
5494 sv_setpv(sv, spwent->sp_pwdp);
5495 }
f1066039 5496# endif
e020c87d 5497# ifdef PWPASSWD
3813c136
JH		 5498 if (!SvPOK(sv)) /* Use the standard password, then. */
5499 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5500# endif
3813c136 5501
1883634f 5502# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5503 /* passwd is tainted because user himself can diddle with it.
5504 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5505 SvTAINTED_on(sv);
1883634f 5506# endif
6ee623d5 5507
3280af22 5508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5509# if Uid_t_sign <= 0
1e422769 5510 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5511# else
23dcd6c8 5512 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5513# endif
6ee623d5 5514
3280af22 5515 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5516# if Uid_t_sign <= 0
1e422769 5517 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5518# else
23dcd6c8 5519 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5520# endif
3813c136
JH		 5521 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5522 * because of the poor interface of the Perl getpw*(),
5523 * not because there's some standard/convention saying so.
5524 * A better interface would have been to return a hash,
5525 * but we are accursed by our history, alas. --jhi. */
3280af22 5526 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5527# ifdef PWCHANGE
1e422769 5528 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5529# else
1883634f
JH		 5530# ifdef PWQUOTA
5531 sv_setiv(sv, (IV)pwent->pw_quota);
5532# else
a1757be1 5533# ifdef PWAGE
a0d0e21e 5534 sv_setpv(sv, pwent->pw_age);
a1757be1 5535# endif
6ee623d5
GS		 5536# endif
5537# endif
6ee623d5 5538
3813c136
JH		 5539 /* pw_class and pw_comment are mutually exclusive--.
5540 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5541 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5542# ifdef PWCLASS
a0d0e21e 5543 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5544# else
5545# ifdef PWCOMMENT
a0d0e21e 5546 sv_setpv(sv, pwent->pw_comment);
1883634f 5547# endif
6ee623d5 5548# endif
6ee623d5 5549
3280af22 5550 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5551# ifdef PWGECOS
a0d0e21e 5552 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5553# endif
5554# ifndef INCOMPLETE_TAINTS
d2719217 5555 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5556 SvTAINTED_on(sv);
1883634f 5557# endif
6ee623d5 5558
3280af22 5559 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5560 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5561
3280af22 5562 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5563 sv_setpv(sv, pwent->pw_shell);
1883634f 5564# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5565 /* pw_shell is tainted because user himself can diddle with it. */
5566 SvTAINTED_on(sv);
1883634f 5567# endif
6ee623d5 5568
1883634f 5569# ifdef PWEXPIRE
6b88bc9c 5570 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5571 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5572# endif
a0d0e21e
LW		 5573 }
5574 RETURN;
5575#else
cea2e8a9 5576 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5577#endif
5578}
5579
5580PP(pp_spwent)
5581{
d493b042 5582#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5583 dSP;
a0d0e21e
LW		 5584 setpwent();
5585 RETPUSHYES;
5586#else
cea2e8a9 5587 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5588#endif
5589}
5590
5591PP(pp_epwent)
5592{
28e8609d 5593#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5594 dSP;
a0d0e21e
LW		 5595 endpwent();
5596 RETPUSHYES;
5597#else
cea2e8a9 5598 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5599#endif
5600}
5601
5602PP(pp_ggrnam)
5603{
5604#ifdef HAS_GROUP
cea2e8a9 5605 return pp_ggrent();
a0d0e21e 5606#else
cea2e8a9 5607 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5608#endif
5609}
5610
5611PP(pp_ggrgid)
5612{
5613#ifdef HAS_GROUP
cea2e8a9 5614 return pp_ggrent();
a0d0e21e 5615#else
cea2e8a9 5616 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5617#endif
5618}
5619
5620PP(pp_ggrent)
5621{
0994c4d0 5622#ifdef HAS_GROUP
9cad6237 5623 dSP;
533c011a 5624 I32 which = PL_op->op_type;
a0d0e21e
LW		 5625 register char **elem;
5626 register SV *sv;
5627 struct group *grent;
5628
edd309b7
JH		 5629 if (which == OP_GGRNAM) {
5630 char* name = POPpbytex;
5631 grent = (struct group *)getgrnam(name);
5632 }
5633 else if (which == OP_GGRGID) {
5634 Gid_t gid = POPi;
5635 grent = (struct group *)getgrgid(gid);
5636 }
a0d0e21e 5637 else
0994c4d0 5638#ifdef HAS_GETGRENT
a0d0e21e 5639 grent = (struct group *)getgrent();
0994c4d0
JH		 5640#else
5641 DIE(aTHX_ PL_no_func, "getgrent");
5642#endif
a0d0e21e
LW		 5643
5644 EXTEND(SP, 4);
5645 if (GIMME != G_ARRAY) {
5646 PUSHs(sv = sv_newmortal());
5647 if (grent) {
5648 if (which == OP_GGRNAM)
1e422769 5649 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5650 else
5651 sv_setpv(sv, grent->gr_name);
5652 }
5653 RETURN;
5654 }
5655
5656 if (grent) {
3280af22 5657 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5658 sv_setpv(sv, grent->gr_name);
28e8609d 5659
3280af22 5660 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5661#ifdef GRPASSWD
a0d0e21e 5662 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5663#endif
5664
3280af22 5665 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5666 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5667
5b56e7c5 5668#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5669 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5670 /* In UNICOS/mk (_CRAYMPP) the multithreading
5671 * versions (getgrnam_r, getgrgid_r)
5672 * seem to return an illegal pointer
5673 * as the group members list, gr_mem.
5674 * getgrent() doesn't even have a _r version
5675 * but the gr_mem is poisonous anyway.
5676 * So yes, you cannot get the list of group
5677 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5678 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5679 sv_catpv(sv, *elem);
5680 if (elem[1])
5681 sv_catpvn(sv, " ", 1);
5682 }
3d7e8424 5683#endif
a0d0e21e
LW		 5684 }
5685
5686 RETURN;
5687#else
cea2e8a9 5688 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5689#endif
5690}
5691
5692PP(pp_sgrent)
5693{
28e8609d 5694#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5695 dSP;
a0d0e21e
LW		 5696 setgrent();
5697 RETPUSHYES;
5698#else
cea2e8a9 5699 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5700#endif
5701}
5702
5703PP(pp_egrent)
5704{
28e8609d 5705#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5706 dSP;
a0d0e21e
LW		 5707 endgrent();
5708 RETPUSHYES;
5709#else
cea2e8a9 5710 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5711#endif
5712}
5713
5714PP(pp_getlogin)
5715{
a0d0e21e 5716#ifdef HAS_GETLOGIN
9cad6237 5717 dSP; dTARGET;
a0d0e21e
LW		 5718 char *tmps;
5719 EXTEND(SP, 1);
76e3520e 5720 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5721 RETPUSHUNDEF;
5722 PUSHp(tmps, strlen(tmps));
5723 RETURN;
5724#else
cea2e8a9 5725 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5726#endif
5727}
5728
5729/* Miscellaneous. */
5730
5731PP(pp_syscall)
5732{
d2719217 5733#ifdef HAS_SYSCALL
39644a26 5734 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5735 register I32 items = SP - MARK;
5736 unsigned long a[20];
5737 register I32 i = 0;
5738 I32 retval = -1;
5739
3280af22 5740 if (PL_tainting) {
a0d0e21e 5741 while (++MARK <= SP) {
bbce6d69 5742 if (SvTAINTED(*MARK)) {
5743 TAINT;
5744 break;
5745 }
a0d0e21e
LW		 5746 }
5747 MARK = ORIGMARK;
5748 TAINT_PROPER("syscall");
5749 }
5750
5751 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5752 * or where sizeof(long) != sizeof(char*). But such machines will
5753 * not likely have syscall implemented either, so who cares?
5754 */
5755 while (++MARK <= SP) {
5756 if (SvNIOK(*MARK) || !i)
5757 a[i++] = SvIV(*MARK);
3280af22 5758 else if (*MARK == &PL_sv_undef)
748a9306 5759 a[i++] = 0;
301e8125 5760 else
8b6b16e7 5761 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5762 if (i > 15)
5763 break;
5764 }
5765 switch (items) {
5766 default:
cea2e8a9 5767 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5768 case 0:
cea2e8a9 5769 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5770 case 1:
5771 retval = syscall(a[0]);
5772 break;
5773 case 2:
5774 retval = syscall(a[0],a[1]);
5775 break;
5776 case 3:
5777 retval = syscall(a[0],a[1],a[2]);
5778 break;
5779 case 4:
5780 retval = syscall(a[0],a[1],a[2],a[3]);
5781 break;
5782 case 5:
5783 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5784 break;
5785 case 6:
5786 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5787 break;
5788 case 7:
5789 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5790 break;
5791 case 8:
5792 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5793 break;
5794#ifdef atarist
5795 case 9:
5796 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5797 break;
5798 case 10:
5799 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5800 break;
5801 case 11:
5802 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5803 a[10]);
5804 break;
5805 case 12:
5806 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5807 a[10],a[11]);
5808 break;
5809 case 13:
5810 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5811 a[10],a[11],a[12]);
5812 break;
5813 case 14:
5814 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5815 a[10],a[11],a[12],a[13]);
5816 break;
5817#endif /* atarist */
5818 }
5819 SP = ORIGMARK;
5820 PUSHi(retval);
5821 RETURN;
5822#else
cea2e8a9 5823 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5824#endif
5825}
5826
ff68c719 5827#ifdef FCNTL_EMULATE_FLOCK
301e8125 5828
ff68c719 5829/* XXX Emulate flock() with fcntl().
5830 What's really needed is a good file locking module.
5831*/
5832
cea2e8a9
GS		 5833static int
5834fcntl_emulate_flock(int fd, int operation)
ff68c719 5835{
5836 struct flock flock;
301e8125 5837
ff68c719 5838 switch (operation & ~LOCK_NB) {
5839 case LOCK_SH:
5840 flock.l_type = F_RDLCK;
5841 break;
5842 case LOCK_EX:
5843 flock.l_type = F_WRLCK;
5844 break;
5845 case LOCK_UN:
5846 flock.l_type = F_UNLCK;
5847 break;
5848 default:
5849 errno = EINVAL;
5850 return -1;
5851 }
5852 flock.l_whence = SEEK_SET;
d9b3e12d 5853 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5854
ff68c719 5855 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5856}
5857
5858#endif /* FCNTL_EMULATE_FLOCK */
5859
5860#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5861
5862/* XXX Emulate flock() with lockf(). This is just to increase
5863 portability of scripts. The calls are not completely
5864 interchangeable. What's really needed is a good file
5865 locking module.
5866*/
5867
76c32331 5868/* The lockf() constants might have been defined in <unistd.h>.
5869 Unfortunately, <unistd.h> causes troubles on some mixed
5870 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5871
5872 Further, the lockf() constants aren't POSIX, so they might not be
5873 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5874 just stick in the SVID values and be done with it. Sigh.
5875*/
5876
5877# ifndef F_ULOCK
5878# define F_ULOCK 0 /* Unlock a previously locked region */
5879# endif
5880# ifndef F_LOCK
5881# define F_LOCK 1 /* Lock a region for exclusive use */
5882# endif
5883# ifndef F_TLOCK
5884# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5885# endif
5886# ifndef F_TEST
5887# define F_TEST 3 /* Test a region for other processes locks */
5888# endif
5889
cea2e8a9
GS		 5890static int
5891lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5892{
5893 int i;
84902520
TB		 5894 int save_errno;
5895 Off_t pos;
5896
5897 /* flock locks entire file so for lockf we need to do the same */
5898 save_errno = errno;
6ad3d225 5899 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5900 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5901 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5902 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5903 errno = save_errno;
5904
16d20bd9
AD		 5905 switch (operation) {
5906
5907 /* LOCK_SH - get a shared lock */
5908 case LOCK_SH:
5909 /* LOCK_EX - get an exclusive lock */
5910 case LOCK_EX:
5911 i = lockf (fd, F_LOCK, 0);
5912 break;
5913
5914 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5915 case LOCK_SH|LOCK_NB:
5916 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5917 case LOCK_EX|LOCK_NB:
5918 i = lockf (fd, F_TLOCK, 0);
5919 if (i == -1)
5920 if ((errno == EAGAIN) || (errno == EACCES))
5921 errno = EWOULDBLOCK;
5922 break;
5923
ff68c719 5924 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5925 case LOCK_UN:
ff68c719 5926 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5927 i = lockf (fd, F_ULOCK, 0);
5928 break;
5929
5930 /* Default - can't decipher operation */
5931 default:
5932 i = -1;
5933 errno = EINVAL;
5934 break;
5935 }
84902520
TB		 5936
5937 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5938 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5939
16d20bd9
AD		 5940 return (i);
5941}
ff68c719 5942
5943#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5944
5945/*
5946 * Local variables:
5947 * c-indentation-style: bsd
5948 * c-basic-offset: 4
5949 * indent-tabs-mode: t
5950 * End:
5951 *
37442d52
RGS		 5952 * ex: set ts=8 sts=4 sw=4 noet:
5953 */
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