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Negation of "-e1" no more todo.
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
fdf8c088 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
1129b882 4 * 2004, 2005, 2006, 2007, 2008 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.
4ac71550
TC		 16 *
17 * [p.945 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
a0d0e21e
LW		 18 */
19
166f8a29
DM		 20/* This file contains system pp ("push/pop") functions that
21 * execute the opcodes that make up a perl program. A typical pp function
22 * expects to find its arguments on the stack, and usually pushes its
23 * results onto the stack, hence the 'pp' terminology. Each OP structure
24 * contains a pointer to the relevant pp_foo() function.
25 *
26 * By 'system', we mean ops which interact with the OS, such as pp_open().
27 */
28
a0d0e21e 29#include "EXTERN.h"
864dbfa3 30#define PERL_IN_PP_SYS_C
a0d0e21e 31#include "perl.h"
d95a2ea5
CB		 32#include "time64.h"
33#include "time64.c"
a0d0e21e 34
f1066039
JH		 35#ifdef I_SHADOW
36/* Shadow password support for solaris - pdo@cs.umd.edu
37 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 38 * The API is from SysV.
39 *
40 * There are at least two more shadow interfaces,
41 * see the comments in pp_gpwent().
42 *
43 * --jhi */
44# ifdef __hpux__
c529f79d 45/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 46 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 47# undef MAXINT
48# endif
49# include <shadow.h>
8c0bfa08
PB		 50#endif
51
76c32331 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
a4af207c
JH		 182#include "reentr.h"
183
9cffb111
OS		 184#ifdef __Lynx__
185/* Missing protos on LynxOS */
186void sethostent(int);
187void endhostent(void);
188void setnetent(int);
189void endnetent(void);
190void setprotoent(int);
191void endprotoent(void);
192void setservent(int);
193void endservent(void);
194#endif
195
faee0e31 196#undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
5ff3f7a4
GS		 197
198/* F_OK unused: if stat() cannot find it... */
199
d7558cad 200#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 201 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
d7558cad 202# define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
5ff3f7a4
GS		 203#endif
204
d7558cad 205#if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
3813c136 206# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 207# include <sys/security.h>
208# endif
c955f117
JH		 209# ifdef ACC_SELF
210 /* HP SecureWare */
d7558cad 211# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
c955f117
JH		 212# else
213 /* SCO */
d7558cad 214# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
c955f117 215# endif
5ff3f7a4
GS		 216#endif
217
d7558cad 218#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 219 /* AIX */
d7558cad 220# define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
5ff3f7a4
GS		 221#endif
222
d7558cad
NC		 223
224#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
327c3667
GS		 225 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
226 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 227/* The Hard Way. */
327c3667 228STATIC int
7f4774ae 229S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 230{
c4420975
AL		 231 const Uid_t ruid = getuid();
232 const Uid_t euid = geteuid();
233 const Gid_t rgid = getgid();
234 const Gid_t egid = getegid();
5ff3f7a4
GS		 235 int res;
236
5ff3f7a4 237#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 238 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 239#else
240#ifdef HAS_SETREUID
241 if (setreuid(euid, ruid))
242#else
243#ifdef HAS_SETRESUID
244 if (setresuid(euid, ruid, (Uid_t)-1))
245#endif
246#endif
dcbac5bb 247 /* diag_listed_as: entering effective %s failed */
cea2e8a9 248 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 249#endif
250
251#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 252 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 253#else
254#ifdef HAS_SETREGID
255 if (setregid(egid, rgid))
256#else
257#ifdef HAS_SETRESGID
258 if (setresgid(egid, rgid, (Gid_t)-1))
259#endif
260#endif
dcbac5bb 261 /* diag_listed_as: entering effective %s failed */
cea2e8a9 262 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 263#endif
264
265 res = access(path, mode);
266
267#ifdef HAS_SETREUID
268 if (setreuid(ruid, euid))
269#else
270#ifdef HAS_SETRESUID
271 if (setresuid(ruid, euid, (Uid_t)-1))
272#endif
273#endif
dcbac5bb 274 /* diag_listed_as: leaving effective %s failed */
cea2e8a9 275 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 276
277#ifdef HAS_SETREGID
278 if (setregid(rgid, egid))
279#else
280#ifdef HAS_SETRESGID
281 if (setresgid(rgid, egid, (Gid_t)-1))
282#endif
283#endif
dcbac5bb 284 /* diag_listed_as: leaving effective %s failed */
cea2e8a9 285 Perl_croak(aTHX_ "leaving effective gid failed");
5ff3f7a4
GS		 286
287 return res;
288}
d6864606 289# define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f)))
5ff3f7a4
GS		 290#endif
291
a0d0e21e
LW		 292PP(pp_backtick)
293{
20b7effb 294 dSP; dTARGET;
760ac839 295 PerlIO *fp;
1b6737cc 296 const char * const tmps = POPpconstx;
f54cb97a 297 const I32 gimme = GIMME_V;
e1ec3a88 298 const char *mode = "r";
54310121 299
a0d0e21e 300 TAINT_PROPER("``");
16fe6d59
GS		 301 if (PL_op->op_private & OPpOPEN_IN_RAW)
302 mode = "rb";
303 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
304 mode = "rt";
2fbb330f 305 fp = PerlProc_popen(tmps, mode);
a0d0e21e 306 if (fp) {
11bcd5da 307 const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
ac27b0f5
NIS		 308 if (type && *type)
309 PerlIO_apply_layers(aTHX_ fp,mode,type);
310
54310121 311 if (gimme == G_VOID) {
96827780
MB		 312 char tmpbuf[256];
313 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
a79db61d 314 NOOP;
54310121 315 }
316 else if (gimme == G_SCALAR) {
d343c3ef 317 ENTER_with_name("backtick");
75af1a9c 318 SAVESPTR(PL_rs);
fa326138 319 PL_rs = &PL_sv_undef;
76f68e9b 320 sv_setpvs(TARG, ""); /* note that this preserves previous buffer */
bd61b366 321 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
a79db61d 322 NOOP;
d343c3ef 323 LEAVE_with_name("backtick");
a0d0e21e 324 XPUSHs(TARG);
aa689395 325 SvTAINTED_on(TARG);
a0d0e21e
LW		 326 }
327 else {
a0d0e21e 328 for (;;) {
561b68a9 329 SV * const sv = newSV(79);
bd61b366 330 if (sv_gets(sv, fp, 0) == NULL) {
a0d0e21e
LW		 331 SvREFCNT_dec(sv);
332 break;
333 }
6e449a3a 334 mXPUSHs(sv);
a0d0e21e 335 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 336 SvPV_shrink_to_cur(sv);
a0d0e21e 337 }
aa689395 338 SvTAINTED_on(sv);
a0d0e21e
LW		 339 }
340 }
2fbb330f 341 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
aa689395 342 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 343 }
344 else {
37038d91 345 STATUS_NATIVE_CHILD_SET(-1);
54310121 346 if (gimme == G_SCALAR)
a0d0e21e
LW		 347 RETPUSHUNDEF;
348 }
349
350 RETURN;
351}
352
353PP(pp_glob)
354{
355 OP *result;
9426e1a5 356 dSP;
9423a867
FC		 357 GV * const gv = (PL_op->op_flags & OPf_SPECIAL) ? NULL : (GV *)POPs;
358
359 PUTBACK;
360
151cea25
FC		 361 /* make a copy of the pattern if it is gmagical, to ensure that magic
362 * is called once and only once */
9423a867 363 if (SvGMAGICAL(TOPs)) TOPs = sv_2mortal(newSVsv(TOPs));
9426e1a5 364
fc99edcf 365 tryAMAGICunTARGETlist(iter_amg, (PL_op->op_flags & OPf_SPECIAL));
d1bea3d8
DM		 366
367 if (PL_op->op_flags & OPf_SPECIAL) {
368 /* call Perl-level glob function instead. Stack args are:
9423a867 369 * MARK, wildcard
d1bea3d8
DM		 370 * and following OPs should be: gv(CORE::GLOBAL::glob), entersub
371 * */
372 return NORMAL;
373 }
d67594ff 374 if (PL_globhook) {
d67594ff
FC		 375 PL_globhook(aTHX);
376 return NORMAL;
377 }
f5284f61 378
71686f12
GS		 379 /* Note that we only ever get here if File::Glob fails to load
380 * without at the same time croaking, for some reason, or if
381 * perl was built with PERL_EXTERNAL_GLOB */
382
d343c3ef 383 ENTER_with_name("glob");
a0d0e21e 384
c90c0ff4 385#ifndef VMS
284167a5 386 if (TAINTING_get) {
7bac28a0 387 /*
388 * The external globbing program may use things we can't control,
389 * so for security reasons we must assume the worst.
390 */
391 TAINT;
22c35a8c 392 taint_proper(PL_no_security, "glob");
7bac28a0 393 }
c90c0ff4 394#endif /* !VMS */
7bac28a0 395
3280af22 396 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
9423a867 397 PL_last_in_gv = gv;
a0d0e21e 398
3280af22 399 SAVESPTR(PL_rs); /* This is not permanent, either. */
84bafc02 400 PL_rs = newSVpvs_flags("\000", SVs_TEMP);
c07a80fd 401#ifndef DOSISH
402#ifndef CSH
6b88bc9c 403 *SvPVX(PL_rs) = '\n';
a0d0e21e 404#endif /* !CSH */
55497cff 405#endif /* !DOSISH */
c07a80fd 406
a0d0e21e 407 result = do_readline();
d343c3ef 408 LEAVE_with_name("glob");
a0d0e21e
LW		 409 return result;
410}
411
a0d0e21e
LW		 412PP(pp_rcatline)
413{
146174a9 414 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 415 return do_readline();
416}
417
418PP(pp_warn)
419{
20b7effb 420 dSP; dMARK;
c5df3096 421 SV *exsv;
06bf62c7 422 STRLEN len;
b59aed67 423 if (SP - MARK > 1) {
a0d0e21e 424 dTARGET;
3280af22 425 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 426 exsv = TARG;
a0d0e21e
LW		 427 SP = MARK + 1;
428 }
b59aed67 429 else if (SP == MARK) {
c5df3096 430 exsv = &PL_sv_no;
b59aed67 431 EXTEND(SP, 1);
83f957ec 432 SP = MARK + 1;
b59aed67 433 }
a0d0e21e 434 else {
c5df3096 435 exsv = TOPs;
ef5fe392 436 if (SvGMAGICAL(exsv)) exsv = sv_mortalcopy(exsv);
a0d0e21e 437 }
06bf62c7 438
72d74926 439 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z		 440 /* well-formed exception supplied */
441 }
c5df3096 442 else {
eed484f9
DD		 443 SV * const errsv = ERRSV;
444 SvGETMAGIC(errsv);
445 if (SvROK(errsv)) {
446 if (SvGMAGICAL(errsv)) {
ef5fe392 447 exsv = sv_newmortal();
eed484f9 448 sv_setsv_nomg(exsv, errsv);
ef5fe392 449 }
eed484f9 450 else exsv = errsv;
ef5fe392 451 }
eed484f9 452 else if (SvPOKp(errsv) ? SvCUR(errsv) : SvNIOKp(errsv)) {
ef5fe392 453 exsv = sv_newmortal();
eed484f9 454 sv_setsv_nomg(exsv, errsv);
ef5fe392
FC		 455 sv_catpvs(exsv, "\t...caught");
456 }
457 else {
c5df3096 458 exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
ef5fe392 459 }
c5df3096 460 }
3b7f69a5
FC		 461 if (SvROK(exsv) && !PL_warnhook)
462 Perl_warn(aTHX_ "%"SVf, SVfARG(exsv));
463 else warn_sv(exsv);
a0d0e21e
LW		 464 RETSETYES;
465}
466
467PP(pp_die)
468{
20b7effb 469 dSP; dMARK;
c5df3096 470 SV *exsv;
06bf62c7 471 STRLEN len;
96e176bf 472#ifdef VMS
97124ef6
FC		 473 VMSISH_HUSHED =
474 VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH);
96e176bf 475#endif
a0d0e21e
LW		 476 if (SP - MARK != 1) {
477 dTARGET;
3280af22 478 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 479 exsv = TARG;
a0d0e21e
LW		 480 SP = MARK + 1;
481 }
482 else {
c5df3096 483 exsv = TOPs;
a0d0e21e 484 }
c5df3096 485
72d74926 486 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z		 487 /* well-formed exception supplied */
488 }
eed484f9
DD		 489 else {
490 SV * const errsv = ERRSV;
8b3945e7 491 SvGETMAGIC(errsv);
eed484f9
DD		 492 if (SvROK(errsv)) {
493 exsv = errsv;
494 if (sv_isobject(exsv)) {
495 HV * const stash = SvSTASH(SvRV(exsv));
496 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
497 if (gv) {
498 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
499 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
500 EXTEND(SP, 3);
501 PUSHMARK(SP);
502 PUSHs(exsv);
503 PUSHs(file);
504 PUSHs(line);
505 PUTBACK;
506 call_sv(MUTABLE_SV(GvCV(gv)),
507 G_SCALAR|G_EVAL|G_KEEPERR);
508 exsv = sv_mortalcopy(*PL_stack_sp--);
509 }
05423cc9 510 }
4e6ea2c3 511 }
8b3945e7 512 else if (SvPOK(errsv) && SvCUR(errsv)) {
eed484f9
DD		 513 exsv = sv_mortalcopy(errsv);
514 sv_catpvs(exsv, "\t...propagated");
515 }
516 else {
517 exsv = newSVpvs_flags("Died", SVs_TEMP);
518 }
c5df3096 519 }
81d52ecd 520 die_sv(exsv);
a25b5927 521 NOT_REACHED; /* NOTREACHED */
263fdd5b 522 return NULL; /* avoid missing return from non-void function warning */
a0d0e21e
LW		 523}
524
525/* I/O. */
526
d682515d 527OP *
3e0cb5de 528Perl_tied_method(pTHX_ SV *methname, SV **sp, SV *const sv,
d682515d 529 const MAGIC *const mg, const U32 flags, U32 argc, ...)
6bcca55b 530{
d8ef3a16
DM		 531 SV **orig_sp = sp;
532 I32 ret_args;
533
d682515d 534 PERL_ARGS_ASSERT_TIED_METHOD;
6bcca55b
NC		 535
536 /* Ensure that our flag bits do not overlap. */
d682515d
NC		 537 assert((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
538 assert((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
94bc412f 539 assert((TIED_METHOD_SAY & G_WANT) == 0);
6bcca55b 540
d8ef3a16
DM		 541 PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
542 PUSHSTACKi(PERLSI_MAGIC);
543 EXTEND(SP, argc+1); /* object + args */
6bcca55b 544 PUSHMARK(sp);
d682515d 545 PUSHs(SvTIED_obj(sv, mg));
d8ef3a16
DM		 546 if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
547 Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
1a8c1d59 548 sp += argc;
d8ef3a16 549 }
1a8c1d59 550 else if (argc) {
d682515d
NC		 551 const U32 mortalize_not_needed
552 = flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
6bcca55b 553 va_list args;
0d5509eb 554 va_start(args, argc);
6bcca55b
NC		 555 do {
556 SV *const arg = va_arg(args, SV *);
557 if(mortalize_not_needed)
558 PUSHs(arg);
559 else
560 mPUSHs(arg);
561 } while (--argc);
562 va_end(args);
563 }
564
565 PUTBACK;
d682515d 566 ENTER_with_name("call_tied_method");
94bc412f
NC		 567 if (flags & TIED_METHOD_SAY) {
568 /* local $\ = "\n" */
569 SAVEGENERICSV(PL_ors_sv);
570 PL_ors_sv = newSVpvs("\n");
571 }
3e0cb5de 572 ret_args = call_sv(methname, (flags & G_WANT)|G_METHOD_NAMED);
d8ef3a16
DM		 573 SPAGAIN;
574 orig_sp = sp;
575 POPSTACK;
576 SPAGAIN;
577 if (ret_args) { /* copy results back to original stack */
578 EXTEND(sp, ret_args);
579 Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
580 sp += ret_args;
581 PUTBACK;
582 }
d682515d 583 LEAVE_with_name("call_tied_method");
6bcca55b
NC		 584 return NORMAL;
585}
586
d682515d
NC		 587#define tied_method0(a,b,c,d) \
588 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
589#define tied_method1(a,b,c,d,e) \
590 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
591#define tied_method2(a,b,c,d,e,f) \
592 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
6bcca55b 593
a0d0e21e
LW		 594PP(pp_open)
595{
20b7effb 596 dSP;
a567e93b
NIS		 597 dMARK; dORIGMARK;
598 dTARGET;
a0d0e21e 599 SV *sv;
5b468f54 600 IO *io;
5c144d81 601 const char *tmps;
a0d0e21e 602 STRLEN len;
a567e93b 603 bool ok;
a0d0e21e 604
159b6efe 605 GV * const gv = MUTABLE_GV(*++MARK);
c4420975 606
13be902c 607 if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
cea2e8a9 608 DIE(aTHX_ PL_no_usym, "filehandle");
abc718f2 609
a79db61d 610 if ((io = GvIOp(gv))) {
a5e1d062 611 const MAGIC *mg;
36477c24 612 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 613
a2a5de95 614 if (IoDIRP(io))
d1d15184 615 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
d0c0e7dd
FC		 616 "Opening dirhandle %"HEKf" also as a file",
617 HEKfARG(GvENAME_HEK(gv)));
abc718f2 618
ad64d0ec 619 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
c4420975
AL		 620 if (mg) {
621 /* Method's args are same as ours ... */
622 /* ... except handle is replaced by the object */
3e0cb5de 623 return Perl_tied_method(aTHX_ SV_CONST(OPEN), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC		 624 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
625 sp - mark);
c4420975 626 }
4592e6ca
NIS		 627 }
628
a567e93b
NIS		 629 if (MARK < SP) {
630 sv = *++MARK;
631 }
632 else {
35a08ec7 633 sv = GvSVn(gv);
a567e93b
NIS		 634 }
635
5c144d81 636 tmps = SvPV_const(sv, len);
d5eb9a46 637 ok = do_open6(gv, tmps, len, NULL, MARK+1, (SP-MARK));
a567e93b
NIS		 638 SP = ORIGMARK;
639 if (ok)
3280af22
NIS		 640 PUSHi( (I32)PL_forkprocess );
641 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 642 PUSHi(0);
643 else
644 RETPUSHUNDEF;
645 RETURN;
646}
647
648PP(pp_close)
649{
20b7effb 650 dSP;
30901a8a
FC		 651 GV * const gv =
652 MAXARG == 0 || (!TOPs && !POPs) ? PL_defoutgv : MUTABLE_GV(POPs);
1d603a67 653
2addaaf3
NC		 654 if (MAXARG == 0)
655 EXTEND(SP, 1);
656
a79db61d
AL		 657 if (gv) {
658 IO * const io = GvIO(gv);
659 if (io) {
a5e1d062 660 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 661 if (mg) {
3e0cb5de 662 return tied_method0(SV_CONST(CLOSE), SP, MUTABLE_SV(io), mg);
a79db61d
AL		 663 }
664 }
1d603a67 665 }
54310121 666 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 667 RETURN;
668}
669
670PP(pp_pipe_op)
671{
a0d0e21e 672#ifdef HAS_PIPE
9cad6237 673 dSP;
eb578fdb
KW		 674 IO *rstio;
675 IO *wstio;
a0d0e21e
LW		 676 int fd[2];
677
159b6efe
NC		 678 GV * const wgv = MUTABLE_GV(POPs);
679 GV * const rgv = MUTABLE_GV(POPs);
a0d0e21e 680
8a6c0fcb
FC		 681 assert (isGV_with_GP(rgv));
682 assert (isGV_with_GP(wgv));
a0d0e21e 683 rstio = GvIOn(rgv);
a0d0e21e
LW		 684 if (IoIFP(rstio))
685 do_close(rgv, FALSE);
49225470
DD		 686
687 wstio = GvIOn(wgv);
a0d0e21e
LW		 688 if (IoIFP(wstio))
689 do_close(wgv, FALSE);
690
6ad3d225 691 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 692 goto badexit;
693
460c8493
IZ		 694 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
695 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 696 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 697 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 698 IoTYPE(rstio) = IoTYPE_RDONLY;
699 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 700
701 if (!IoIFP(rstio) || !IoOFP(wstio)) {
a79db61d
AL		 702 if (IoIFP(rstio))
703 PerlIO_close(IoIFP(rstio));
704 else
705 PerlLIO_close(fd[0]);
706 if (IoOFP(wstio))
707 PerlIO_close(IoOFP(wstio));
708 else
709 PerlLIO_close(fd[1]);
a0d0e21e
LW		 710 goto badexit;
711 }
4771b018 712#if defined(HAS_FCNTL) && defined(F_SETFD)
375ed12a
JH		 713 /* ensure close-on-exec */
714 if ((fcntl(fd[0], F_SETFD,fd[0] > PL_maxsysfd) < 0) ||
715 (fcntl(fd[1], F_SETFD,fd[1] > PL_maxsysfd) < 0))
716 goto badexit;
4771b018 717#endif
a0d0e21e
LW		 718 RETPUSHYES;
719
720badexit:
721 RETPUSHUNDEF;
722#else
cea2e8a9 723 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 724#endif
725}
726
727PP(pp_fileno)
728{
20b7effb 729 dSP; dTARGET;
a0d0e21e
LW		 730 GV *gv;
731 IO *io;
760ac839 732 PerlIO *fp;
a5e1d062 733 const MAGIC *mg;
4592e6ca 734
a0d0e21e
LW		 735 if (MAXARG < 1)
736 RETPUSHUNDEF;
159b6efe 737 gv = MUTABLE_GV(POPs);
9c9f25b8 738 io = GvIO(gv);
4592e6ca 739
9c9f25b8 740 if (io
ad64d0ec 741 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
5b468f54 742 {
3e0cb5de 743 return tied_method0(SV_CONST(FILENO), SP, MUTABLE_SV(io), mg);
4592e6ca
NIS		 744 }
745
9c9f25b8 746 if (!io || !(fp = IoIFP(io))) {
c289d2f7
JH		 747 /* Can't do this because people seem to do things like
748 defined(fileno($foo)) to check whether $foo is a valid fh.
51087808
NC		 749
750 report_evil_fh(gv);
c289d2f7 751 */
a0d0e21e 752 RETPUSHUNDEF;
c289d2f7
JH		 753 }
754
760ac839 755 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 756 RETURN;
757}
758
759PP(pp_umask)
760{
27da23d5 761 dSP;
d7e492a4 762#ifdef HAS_UMASK
27da23d5 763 dTARGET;
761237fe 764 Mode_t anum;
a0d0e21e 765
58536d15 766 if (MAXARG < 1 || (!TOPs && !POPs)) {
b0b546b3
GA		 767 anum = PerlLIO_umask(022);
768 /* setting it to 022 between the two calls to umask avoids
769 * to have a window where the umask is set to 0 -- meaning
770 * that another thread could create world-writeable files. */
771 if (anum != 022)
772 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 773 }
774 else
6ad3d225 775 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 776 TAINT_PROPER("umask");
777 XPUSHi(anum);
778#else
a0288114 779 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 780 * Otherwise it's harmless and more useful to just return undef
781 * since 'group' and 'other' concepts probably don't exist here. */
58536d15 782 if (MAXARG >= 1 && (TOPs||POPs) && (POPi & 0700))
cea2e8a9 783 DIE(aTHX_ "umask not implemented");
6b88bc9c 784 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 785#endif
786 RETURN;
787}
788
789PP(pp_binmode)
790{
20b7effb 791 dSP;
a0d0e21e
LW		 792 GV *gv;
793 IO *io;
760ac839 794 PerlIO *fp;
a0714e2c 795 SV *discp = NULL;
a0d0e21e
LW		 796
797 if (MAXARG < 1)
798 RETPUSHUNDEF;
60382766 799 if (MAXARG > 1) {
16fe6d59 800 discp = POPs;
60382766 801 }
a0d0e21e 802
159b6efe 803 gv = MUTABLE_GV(POPs);
9c9f25b8 804 io = GvIO(gv);
4592e6ca 805
9c9f25b8 806 if (io) {
a5e1d062 807 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 808 if (mg) {
bc0c81ca
NC		 809 /* This takes advantage of the implementation of the varargs
810 function, which I don't think that the optimiser will be able to
811 figure out. Although, as it's a static function, in theory it
812 could. */
3e0cb5de 813 return Perl_tied_method(aTHX_ SV_CONST(BINMODE), SP, MUTABLE_SV(io), mg,
d682515d
NC		 814 G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
815 discp ? 1 : 0, discp);
a79db61d 816 }
4592e6ca 817 }
a0d0e21e 818
9c9f25b8 819 if (!io || !(fp = IoIFP(io))) {
51087808 820 report_evil_fh(gv);
b5fe5ca2 821 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 822 RETPUSHUNDEF;
823 }
a0d0e21e 824
40d98b49 825 PUTBACK;
f0a78170 826 {
a79b25b7
VP		 827 STRLEN len = 0;
828 const char *d = NULL;
829 int mode;
830 if (discp)
831 d = SvPV_const(discp, len);
832 mode = mode_from_discipline(d, len);
f0a78170
NC		 833 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
834 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
835 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
836 SPAGAIN;
837 RETPUSHUNDEF;
838 }
839 }
840 SPAGAIN;
841 RETPUSHYES;
842 }
843 else {
844 SPAGAIN;
845 RETPUSHUNDEF;
38af81ff 846 }
40d98b49 847 }
a0d0e21e
LW		 848}
849
850PP(pp_tie)
851{
20b7effb 852 dSP; dMARK;
a0d0e21e 853 HV* stash;
07822e36 854 GV *gv = NULL;
a0d0e21e 855 SV *sv;
1df70142 856 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 857 const char *methname;
14befaf4 858 int how = PERL_MAGIC_tied;
e336de0d 859 U32 items;
c4420975 860 SV *varsv = *++MARK;
a0d0e21e 861
6b05c17a
NIS		 862 switch(SvTYPE(varsv)) {
863 case SVt_PVHV:
aec0c0cc
FC		 864 {
865 HE *entry;
6b05c17a 866 methname = "TIEHASH";
aec0c0cc
FC		 867 if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) {
868 HvLAZYDEL_off(varsv);
869 hv_free_ent((HV *)varsv, entry);
870 }
85fbaab2 871 HvEITER_set(MUTABLE_HV(varsv), 0);
6b05c17a 872 break;
aec0c0cc 873 }
6b05c17a
NIS		 874 case SVt_PVAV:
875 methname = "TIEARRAY";
ce65bc73
FC		 876 if (!AvREAL(varsv)) {
877 if (!AvREIFY(varsv))
878 Perl_croak(aTHX_ "Cannot tie unreifiable array");
879 av_clear((AV *)varsv);
880 AvREIFY_off(varsv);
881 AvREAL_on(varsv);
882 }
6b05c17a
NIS		 883 break;
884 case SVt_PVGV:
13be902c 885 case SVt_PVLV:
8bb5f786 886 if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
6e592b3a
BM		 887 methname = "TIEHANDLE";
888 how = PERL_MAGIC_tiedscalar;
889 /* For tied filehandles, we apply tiedscalar magic to the IO
890 slot of the GP rather than the GV itself. AMS 20010812 */
891 if (!GvIOp(varsv))
892 GvIOp(varsv) = newIO();
ad64d0ec 893 varsv = MUTABLE_SV(GvIOp(varsv));
6e592b3a
BM		 894 break;
895 }
13733cde
FC		 896 if (SvTYPE(varsv) == SVt_PVLV && LvTYPE(varsv) == 'y') {
897 vivify_defelem(varsv);
898 varsv = LvTARG(varsv);
899 }
924ba076 900 /* FALLTHROUGH */
6b05c17a
NIS		 901 default:
902 methname = "TIESCALAR";
14befaf4 903 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 904 break;
905 }
e336de0d 906 items = SP - MARK++;
a91d1d42 907 if (sv_isobject(*MARK)) { /* Calls GET magic. */
d343c3ef 908 ENTER_with_name("call_TIE");
e788e7d3 909 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 910 PUSHMARK(SP);
eb160463 911 EXTEND(SP,(I32)items);
e336de0d
GS		 912 while (items--)
913 PUSHs(*MARK++);
914 PUTBACK;
864dbfa3 915 call_method(methname, G_SCALAR);
301e8125 916 }
6b05c17a 917 else {
086d2913
NC		 918 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
919 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
920 * wrong error message, and worse case, supreme action at a distance.
921 * (Sorry obfuscation writers. You're not going to be given this one.)
6b05c17a 922 */
4886938f
BF		 923 stash = gv_stashsv(*MARK, 0);
924 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d 925 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
a91d1d42 926 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
6b05c17a 927 }
d343c3ef 928 ENTER_with_name("call_TIE");
e788e7d3 929 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 930 PUSHMARK(SP);
eb160463 931 EXTEND(SP,(I32)items);
e336de0d
GS		 932 while (items--)
933 PUSHs(*MARK++);
934 PUTBACK;
ad64d0ec 935 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
6b05c17a 936 }
a0d0e21e
LW		 937 SPAGAIN;
938
939 sv = TOPs;
d3acc0f7 940 POPSTACK;
a0d0e21e 941 if (sv_isobject(sv)) {
33c27489 942 sv_unmagic(varsv, how);
ae21d580 943 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 944 if (varsv == SvRV(sv) &&
d87ebaca
YST		 945 (SvTYPE(varsv) == SVt_PVAV ||
946 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 947 Perl_croak(aTHX_
948 "Self-ties of arrays and hashes are not supported");
a0714e2c 949 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
a0d0e21e 950 }
d343c3ef 951 LEAVE_with_name("call_TIE");
3280af22 952 SP = PL_stack_base + markoff;
a0d0e21e
LW		 953 PUSHs(sv);
954 RETURN;
955}
956
b1c05ba5
DM		 957
958/* also used for: pp_dbmclose() */
959
a0d0e21e
LW		 960PP(pp_untie)
961{
20b7effb 962 dSP;
5b468f54 963 MAGIC *mg;
33c27489 964 SV *sv = POPs;
1df70142 965 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 966 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 967
ca0d4ed9 968 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54
AMS		 969 RETPUSHYES;
970
13733cde
FC		 971 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
972 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
973
65eba18f 974 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 975 SV * const obj = SvRV(SvTIED_obj(sv, mg));
fa2b88e0 976 if (obj) {
c4420975 977 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
0bd48802 978 CV *cv;
c4420975 979 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0 980 PUSHMARK(SP);
c33ef3ac 981 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
6e449a3a 982 mXPUSHi(SvREFCNT(obj) - 1);
fa2b88e0 983 PUTBACK;
d343c3ef 984 ENTER_with_name("call_UNTIE");
ad64d0ec 985 call_sv(MUTABLE_SV(cv), G_VOID);
d343c3ef 986 LEAVE_with_name("call_UNTIE");
fa2b88e0
JS		 987 SPAGAIN;
988 }
a2a5de95
NC		 989 else if (mg && SvREFCNT(obj) > 1) {
990 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
991 "untie attempted while %"UVuf" inner references still exist",
992 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 993 }
cbdc8872 994 }
995 }
38193a09 996 sv_unmagic(sv, how) ;
55497cff 997 RETPUSHYES;
a0d0e21e
LW		 998}
999
c07a80fd 1000PP(pp_tied)
1001{
39644a26 1002 dSP;
1b6737cc 1003 const MAGIC *mg;
b3cf4821 1004 dTOPss;
1df70142 1005 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 1006 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54 1007
4be76e1f 1008 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
b3cf4821 1009 goto ret_undef;
c07a80fd 1010
13733cde 1011 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
b3cf4821 1012 !(sv = defelem_target(sv, NULL))) goto ret_undef;
13733cde 1013
155aba94 1014 if ((mg = SvTIED_mg(sv, how))) {
b3cf4821
DD		 1015 SETs(SvTIED_obj(sv, mg));
1016 return NORMAL; /* PUTBACK not needed, pp_tied never moves SP */
c07a80fd 1017 }
b3cf4821
DD		 1018 ret_undef:
1019 SETs(&PL_sv_undef);
1020 return NORMAL;
c07a80fd 1021}
1022
a0d0e21e
LW		 1023PP(pp_dbmopen)
1024{
20b7effb 1025 dSP;
a0d0e21e
LW		 1026 dPOPPOPssrl;
1027 HV* stash;
07822e36 1028 GV *gv = NULL;
a0d0e21e 1029
85fbaab2 1030 HV * const hv = MUTABLE_HV(POPs);
84bafc02 1031 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
da51bb9b 1032 stash = gv_stashsv(sv, 0);
8ebc5c01 1033 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 1034 PUTBACK;
864dbfa3 1035 require_pv("AnyDBM_File.pm");
a0d0e21e 1036 SPAGAIN;
eff494dd 1037 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 1038 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 1039 }
1040
57d3b86d 1041 ENTER;
924508f0 1042 PUSHMARK(SP);
6b05c17a 1043
924508f0 1044 EXTEND(SP, 5);
a0d0e21e
LW		 1045 PUSHs(sv);
1046 PUSHs(left);
1047 if (SvIV(right))
6e449a3a 1048 mPUSHu(O_RDWR|O_CREAT);
a0d0e21e 1049 else
480e0d3c 1050 {
6e449a3a 1051 mPUSHu(O_RDWR);
480e0d3c
FC		 1052 if (!SvOK(right)) right = &PL_sv_no;
1053 }
a0d0e21e 1054 PUSHs(right);
57d3b86d 1055 PUTBACK;
ad64d0ec 1056 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW		 1057 SPAGAIN;
1058
1059 if (!sv_isobject(TOPs)) {
924508f0
GS		 1060 SP--;
1061 PUSHMARK(SP);
a0d0e21e
LW		 1062 PUSHs(sv);
1063 PUSHs(left);
6e449a3a 1064 mPUSHu(O_RDONLY);
a0d0e21e 1065 PUSHs(right);
a0d0e21e 1066 PUTBACK;
ad64d0ec 1067 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW		 1068 SPAGAIN;
1069 }
1070
6b05c17a 1071 if (sv_isobject(TOPs)) {
ad64d0ec
NC		 1072 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1073 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
6b05c17a 1074 }
a0d0e21e
LW		 1075 LEAVE;
1076 RETURN;
1077}
1078
a0d0e21e
LW		 1079PP(pp_sselect)
1080{
a0d0e21e 1081#ifdef HAS_SELECT
20b7effb 1082 dSP; dTARGET;
eb578fdb
KW		 1083 I32 i;
1084 I32 j;
1085 char *s;
1086 SV *sv;
65202027 1087 NV value;
a0d0e21e
LW		 1088 I32 maxlen = 0;
1089 I32 nfound;
1090 struct timeval timebuf;
1091 struct timeval *tbuf = &timebuf;
1092 I32 growsize;
1093 char *fd_sets[4];
1094#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 I32 masksize;
1096 I32 offset;
1097 I32 k;
1098
1099# if BYTEORDER & 0xf0000
1100# define ORDERBYTE (0x88888888 - BYTEORDER)
1101# else
1102# define ORDERBYTE (0x4444 - BYTEORDER)
1103# endif
1104
1105#endif
1106
1107 SP -= 4;
1108 for (i = 1; i <= 3; i++) {
c4420975 1109 SV * const sv = SP[i];
9d6d5a79 1110 SvGETMAGIC(sv);
15547071
GA		 1111 if (!SvOK(sv))
1112 continue;
ba3062ae
FC		 1113 if (SvREADONLY(sv)) {
1114 if (!(SvPOK(sv) && SvCUR(sv) == 0))
cb077ed2 1115 Perl_croak_no_modify();
ba3062ae
FC		 1116 }
1117 else if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0);
4ef2275c 1118 if (!SvPOK(sv)) {
9d6d5a79
FC		 1119 if (!SvPOKp(sv))
1120 Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
1121 "Non-string passed as bitmask");
1122 SvPV_force_nomg_nolen(sv); /* force string conversion */
4ef2275c 1123 }
729c079f 1124 j = SvCUR(sv);
a0d0e21e
LW		 1125 if (maxlen < j)
1126 maxlen = j;
1127 }
1128
5ff3f7a4 1129/* little endians can use vecs directly */
e366b469 1130#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1131# ifdef NFDBITS
a0d0e21e 1132
5ff3f7a4
GS		 1133# ifndef NBBY
1134# define NBBY 8
1135# endif
a0d0e21e
LW		 1136
1137 masksize = NFDBITS / NBBY;
5ff3f7a4 1138# else
a0d0e21e 1139 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1140# endif
a0d0e21e
LW		 1141 Zero(&fd_sets[0], 4, char*);
1142#endif
1143
ad517f75
MHM		 1144# if SELECT_MIN_BITS == 1
1145 growsize = sizeof(fd_set);
1146# else
1147# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1148# undef SELECT_MIN_BITS
1149# define SELECT_MIN_BITS __FD_SETSIZE
1150# endif
e366b469
PG		 1151 /* If SELECT_MIN_BITS is greater than one we most probably will want
1152 * to align the sizes with SELECT_MIN_BITS/8 because for example
1153 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f05550c0 1154 * UNIX, Solaris, Darwin) the smallest quantum select() operates
e366b469
PG		 1155 * on (sets/tests/clears bits) is 32 bits. */
1156 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1157# endif
1158
a0d0e21e 1159 sv = SP[4];
90eaaf02 1160 SvGETMAGIC(sv);
a0d0e21e 1161 if (SvOK(sv)) {
90eaaf02 1162 value = SvNV_nomg(sv);
a0d0e21e
LW		 1163 if (value < 0.0)
1164 value = 0.0;
1165 timebuf.tv_sec = (long)value;
65202027 1166 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1167 timebuf.tv_usec = (long)(value * 1000000.0);
1168 }
1169 else
4608196e 1170 tbuf = NULL;
a0d0e21e
LW		 1171
1172 for (i = 1; i <= 3; i++) {
1173 sv = SP[i];
15547071 1174 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW		 1175 fd_sets[i] = 0;
1176 continue;
1177 }
4ef2275c 1178 assert(SvPOK(sv));
a0d0e21e
LW		 1179 j = SvLEN(sv);
1180 if (j < growsize) {
1181 Sv_Grow(sv, growsize);
a0d0e21e 1182 }
c07a80fd 1183 j = SvCUR(sv);
1184 s = SvPVX(sv) + j;
1185 while (++j <= growsize) {
1186 *s++ = '\0';
1187 }
1188
a0d0e21e
LW		 1189#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1190 s = SvPVX(sv);
a02a5408 1191 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1192 for (offset = 0; offset < growsize; offset += masksize) {
1193 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1194 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1195 }
1196#else
1197 fd_sets[i] = SvPVX(sv);
1198#endif
1199 }
1200
dc4c69d9
JH		 1201#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1202 /* Can't make just the (void*) conditional because that would be
1203 * cpp #if within cpp macro, and not all compilers like that. */
1204 nfound = PerlSock_select(
1205 maxlen * 8,
1206 (Select_fd_set_t) fd_sets[1],
1207 (Select_fd_set_t) fd_sets[2],
1208 (Select_fd_set_t) fd_sets[3],
1209 (void*) tbuf); /* Workaround for compiler bug. */
1210#else
6ad3d225 1211 nfound = PerlSock_select(
a0d0e21e
LW		 1212 maxlen * 8,
1213 (Select_fd_set_t) fd_sets[1],
1214 (Select_fd_set_t) fd_sets[2],
1215 (Select_fd_set_t) fd_sets[3],
1216 tbuf);
dc4c69d9 1217#endif
a0d0e21e
LW		 1218 for (i = 1; i <= 3; i++) {
1219 if (fd_sets[i]) {
1220 sv = SP[i];
1221#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1222 s = SvPVX(sv);
1223 for (offset = 0; offset < growsize; offset += masksize) {
1224 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1225 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1226 }
1227 Safefree(fd_sets[i]);
1228#endif
1229 SvSETMAGIC(sv);
1230 }
1231 }
1232
4189264e 1233 PUSHi(nfound);
a0d0e21e 1234 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1235 value = (NV)(timebuf.tv_sec) +
1236 (NV)(timebuf.tv_usec) / 1000000.0;
6e449a3a 1237 mPUSHn(value);
a0d0e21e
LW		 1238 }
1239 RETURN;
1240#else
cea2e8a9 1241 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1242#endif
1243}
1244
8226a3d7 1245/*
dcccc8ff
KW		 1246
1247=head1 GV Functions
1248
8226a3d7
NC		 1249=for apidoc setdefout
1250
1251Sets PL_defoutgv, the default file handle for output, to the passed in
72d33970 1252typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference
8226a3d7
NC		 1253count of the passed in typeglob is increased by one, and the reference count
1254of the typeglob that PL_defoutgv points to is decreased by one.
1255
1256=cut
1257*/
1258
4633a7c4 1259void
864dbfa3 1260Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1261{
9a9bb270
FC		 1262 PERL_ARGS_ASSERT_SETDEFOUT;
1263 SvREFCNT_inc_simple_void_NN(gv);
ef8d46e8 1264 SvREFCNT_dec(PL_defoutgv);
3280af22 1265 PL_defoutgv = gv;
4633a7c4
LW		 1266}
1267
a0d0e21e
LW		 1268PP(pp_select)
1269{
20b7effb 1270 dSP; dTARGET;
4633a7c4 1271 HV *hv;
159b6efe 1272 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
099be4f1 1273 GV * egv = GvEGVx(PL_defoutgv);
0df2568b 1274 GV * const *gvp;
4633a7c4 1275
4633a7c4 1276 if (!egv)
3280af22 1277 egv = PL_defoutgv;
099be4f1 1278 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
0df2568b 1279 gvp = hv && HvENAME(hv)
204263bc
FC		 1280 ? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE)
1281 : NULL;
0df2568b 1282 if (gvp && *gvp == egv) {
bd61b366 1283 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
f86702cc 1284 XPUSHTARG;
0df2568b
FC		 1285 }
1286 else {
ad64d0ec 1287 mXPUSHs(newRV(MUTABLE_SV(egv)));
4633a7c4
LW		 1288 }
1289
1290 if (newdefout) {
ded8aa31
GS		 1291 if (!GvIO(newdefout))
1292 gv_IOadd(newdefout);
4633a7c4
LW		 1293 setdefout(newdefout);
1294 }
1295
a0d0e21e
LW		 1296 RETURN;
1297}
1298
1299PP(pp_getc)
1300{
20b7effb 1301 dSP; dTARGET;
30901a8a
FC		 1302 GV * const gv =
1303 MAXARG==0 || (!TOPs && !POPs) ? PL_stdingv : MUTABLE_GV(POPs);
9c9f25b8 1304 IO *const io = GvIO(gv);
2ae324a7 1305
ac3697cd
NC		 1306 if (MAXARG == 0)
1307 EXTEND(SP, 1);
1308
9c9f25b8 1309 if (io) {
a5e1d062 1310 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1311 if (mg) {
0240605e 1312 const U32 gimme = GIMME_V;
3e0cb5de 1313 Perl_tied_method(aTHX_ SV_CONST(GETC), SP, MUTABLE_SV(io), mg, gimme, 0);
0240605e
NC		 1314 if (gimme == G_SCALAR) {
1315 SPAGAIN;
a79db61d 1316 SvSetMagicSV_nosteal(TARG, TOPs);
0240605e
NC		 1317 }
1318 return NORMAL;
a79db61d 1319 }
2ae324a7 1320 }
90133b69 1321 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
51087808 1322 if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
831e4cc3 1323 report_evil_fh(gv);
b5fe5ca2 1324 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1325 RETPUSHUNDEF;
90133b69 1326 }
bbce6d69 1327 TAINT;
76f68e9b 1328 sv_setpvs(TARG, " ");
9bc64814 1329 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1330 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1331 /* Find out how many bytes the char needs */
aa07b2f6 1332 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1333 if (len > 1) {
1334 SvGROW(TARG,len+1);
1335 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1336 SvCUR_set(TARG,1+len);
1337 }
1338 SvUTF8_on(TARG);
1339 }
88c34251 1340 else SvUTF8_off(TARG);
a0d0e21e
LW		 1341 PUSHTARG;
1342 RETURN;
1343}
1344
76e3520e 1345STATIC OP *
cea2e8a9 1346S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1347{
eb578fdb 1348 PERL_CONTEXT *cx;
f54cb97a 1349 const I32 gimme = GIMME_V;
a0d0e21e 1350
7918f24d
NC		 1351 PERL_ARGS_ASSERT_DOFORM;
1352
535e48ea 1353 if (CvCLONE(cv))
7b190374
NC		 1354 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1355
a0d0e21e
LW		 1356 ENTER;
1357 SAVETMPS;
1358
146174a9 1359 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
10067d9a 1360 PUSHFORMAT(cx, retop);
f32c7e86
FC		 1361 if (CvDEPTH(cv) >= 2) {
1362 PERL_STACK_OVERFLOW_CHECK();
1363 pad_push(CvPADLIST(cv), CvDEPTH(cv));
1364 }
fd617465 1365 SAVECOMPPAD();
f32c7e86 1366 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
a0d0e21e 1367
4633a7c4 1368 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1369 return CvSTART(cv);
1370}
1371
1372PP(pp_enterwrite)
1373{
39644a26 1374 dSP;
eb578fdb
KW		 1375 GV *gv;
1376 IO *io;
a0d0e21e 1377 GV *fgv;
07822e36
JH		 1378 CV *cv = NULL;
1379 SV *tmpsv = NULL;
a0d0e21e 1380
2addaaf3 1381 if (MAXARG == 0) {
2addaaf3 1382 EXTEND(SP, 1);
49225470 1383 gv = PL_defoutgv;
2addaaf3 1384 }
a0d0e21e 1385 else {
159b6efe 1386 gv = MUTABLE_GV(POPs);
a0d0e21e 1387 if (!gv)
3280af22 1388 gv = PL_defoutgv;
a0d0e21e 1389 }
a0d0e21e
LW		 1390 io = GvIO(gv);
1391 if (!io) {
1392 RETPUSHNO;
1393 }
1394 if (IoFMT_GV(io))
1395 fgv = IoFMT_GV(io);
1396 else
1397 fgv = gv;
1398
2d1ebc9b 1399 assert(fgv);
a79db61d 1400
a0d0e21e 1401 cv = GvFORM(fgv);
a0d0e21e 1402 if (!cv) {
10edeb5d 1403 tmpsv = sv_newmortal();
f4a7049d 1404 gv_efullname4(tmpsv, fgv, NULL, FALSE);
2d1ebc9b 1405 DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv));
a0d0e21e 1406 }
44a8e56a 1407 IoFLAGS(io) &= ~IOf_DIDTOP;
8e4ecf23 1408 RETURNOP(doform(cv,gv,PL_op->op_next));
a0d0e21e
LW		 1409}
1410
1411PP(pp_leavewrite)
1412{
20b7effb 1413 dSP;
f9c764c5 1414 GV * const gv = cxstack[cxstack_ix].blk_format.gv;
eb578fdb 1415 IO * const io = GvIOp(gv);
8b8cacda 1416 PerlIO *ofp;
760ac839 1417 PerlIO *fp;
8772537c
AL		 1418 SV **newsp;
1419 I32 gimme;
eb578fdb 1420 PERL_CONTEXT *cx;
8f89e5a9 1421 OP *retop;
a0d0e21e 1422
8b8cacda
B		 1423 if (!io || !(ofp = IoOFP(io)))
1424 goto forget_top;
1425
760ac839 1426 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1427 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
8b8cacda 1428
3280af22
NIS		 1429 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1430 PL_formtarget != PL_toptarget)
a0d0e21e 1431 {
4633a7c4
LW		 1432 GV *fgv;
1433 CV *cv;
a0d0e21e
LW		 1434 if (!IoTOP_GV(io)) {
1435 GV *topgv;
a0d0e21e
LW		 1436
1437 if (!IoTOP_NAME(io)) {
1b6737cc 1438 SV *topname;
a0d0e21e
LW		 1439 if (!IoFMT_NAME(io))
1440 IoFMT_NAME(io) = savepv(GvNAME(gv));
d0c0e7dd
FC		 1441 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%"HEKf"_TOP",
1442 HEKfARG(GvNAME_HEK(gv))));
f776e3cd 1443 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
748a9306 1444 if ((topgv && GvFORM(topgv)) ||
fafc274c 1445 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
2e0de35c 1446 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1447 else
89529cee 1448 IoTOP_NAME(io) = savepvs("top");
a0d0e21e 1449 }
f776e3cd 1450 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
a0d0e21e 1451 if (!topgv || !GvFORM(topgv)) {
b929a54b 1452 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1453 goto forget_top;
1454 }
1455 IoTOP_GV(io) = topgv;
1456 }
748a9306
LW		 1457 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1458 I32 lines = IoLINES_LEFT(io);
504618e9 1459 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1460 if (lines <= 0) /* Yow, header didn't even fit!!! */
1461 goto forget_top;
748a9306
LW		 1462 while (lines-- > 0) {
1463 s = strchr(s, '\n');
1464 if (!s)
1465 break;
1466 s++;
1467 }
1468 if (s) {
f54cb97a 1469 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1470 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1471 do_print(PL_formtarget, ofp);
1472 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1473 sv_chop(PL_formtarget, s);
1474 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1475 }
1476 }
a0d0e21e 1477 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
f6dfc736 1478 do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp);
a0d0e21e
LW		 1479 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1480 IoPAGE(io)++;
3280af22 1481 PL_formtarget = PL_toptarget;
748a9306 1482 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4 1483 fgv = IoTOP_GV(io);
636013b3 1484 assert(fgv); /* IoTOP_GV(io) should have been set above */
4633a7c4 1485 cv = GvFORM(fgv);
1df70142
AL		 1486 if (!cv) {
1487 SV * const sv = sv_newmortal();
bd61b366 1488 gv_efullname4(sv, fgv, NULL, FALSE);
44b7e78a 1489 DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv));
4633a7c4 1490 }
43cd5cb7 1491 return doform(cv, gv, PL_op);
a0d0e21e
LW		 1492 }
1493
1494 forget_top:
3280af22 1495 POPBLOCK(cx,PL_curpm);
8f89e5a9 1496 retop = cx->blk_sub.retop;
25375124 1497 POPFORMAT(cx);
43cd5cb7 1498 SP = newsp; /* ignore retval of formline */
a0d0e21e
LW		 1499 LEAVE;
1500
c782dc1d
FC		 1501 if (!io || !(fp = IoOFP(io))) {
1502 if (io && IoIFP(io))
7716c5c5 1503 report_wrongway_fh(gv, '<');
c521cf7c 1504 else
7716c5c5 1505 report_evil_fh(gv);
3280af22 1506 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1507 }
1508 else {
3280af22 1509 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
a2a5de95 1510 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1511 }
d75029d0 1512 if (!do_print(PL_formtarget, fp))
3280af22 1513 PUSHs(&PL_sv_no);
a0d0e21e 1514 else {
3280af22
NIS		 1515 FmLINES(PL_formtarget) = 0;
1516 SvCUR_set(PL_formtarget, 0);
1517 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1518 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1519 (void)PerlIO_flush(fp);
3280af22 1520 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1521 }
1522 }
3280af22 1523 PL_formtarget = PL_bodytarget;
29033a8a 1524 PERL_UNUSED_VAR(gimme);
8e4ecf23 1525 RETURNOP(retop);
a0d0e21e
LW		 1526}
1527
1528PP(pp_prtf)
1529{
20b7effb 1530 dSP; dMARK; dORIGMARK;
760ac839 1531 PerlIO *fp;
a0d0e21e 1532
159b6efe
NC		 1533 GV * const gv
1534 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
9c9f25b8 1535 IO *const io = GvIO(gv);
46fc3d4c 1536
87385d72
FC		 1537 /* Treat empty list as "" */
1538 if (MARK == SP) XPUSHs(&PL_sv_no);
1539
9c9f25b8 1540 if (io) {
a5e1d062 1541 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL		 1542 if (mg) {
1543 if (MARK == ORIGMARK) {
1544 MEXTEND(SP, 1);
1545 ++MARK;
1546 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1547 ++SP;
1548 }
3e0cb5de 1549 return Perl_tied_method(aTHX_ SV_CONST(PRINTF), mark - 1, MUTABLE_SV(io),
d682515d
NC		 1550 mg,
1551 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1552 sp - mark);
a79db61d 1553 }
46fc3d4c 1554 }
1555
9c9f25b8 1556 if (!io) {
51087808 1557 report_evil_fh(gv);
93189314 1558 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1559 goto just_say_no;
1560 }
1561 else if (!(fp = IoOFP(io))) {
7716c5c5
NC		 1562 if (IoIFP(io))
1563 report_wrongway_fh(gv, '<');
1564 else if (ckWARN(WARN_CLOSED))
1565 report_evil_fh(gv);
93189314 1566 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1567 goto just_say_no;
1568 }
1569 else {
c7bd8b84 1570 SV *sv = sv_newmortal();
a0d0e21e
LW		 1571 do_sprintf(sv, SP - MARK, MARK + 1);
1572 if (!do_print(sv, fp))
1573 goto just_say_no;
1574
1575 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1576 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1577 goto just_say_no;
1578 }
a0d0e21e 1579 SP = ORIGMARK;
3280af22 1580 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1581 RETURN;
1582
1583 just_say_no:
a0d0e21e 1584 SP = ORIGMARK;
3280af22 1585 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1586 RETURN;
1587}
1588
c07a80fd 1589PP(pp_sysopen)
1590{
39644a26 1591 dSP;
de5e49e1 1592 const int perm = (MAXARG > 3 && (TOPs || POPs)) ? POPi : 0666;
1df70142 1593 const int mode = POPi;
1b6737cc 1594 SV * const sv = POPs;
159b6efe 1595 GV * const gv = MUTABLE_GV(POPs);
1b6737cc 1596 STRLEN len;
c07a80fd 1597
4592e6ca 1598 /* Need TIEHANDLE method ? */
1b6737cc 1599 const char * const tmps = SvPV_const(sv, len);
d5eb9a46 1600 if (do_open_raw(gv, tmps, len, mode, perm)) {
c07a80fd 1601 IoLINES(GvIOp(gv)) = 0;
3280af22 1602 PUSHs(&PL_sv_yes);
c07a80fd 1603 }
1604 else {
3280af22 1605 PUSHs(&PL_sv_undef);
c07a80fd 1606 }
1607 RETURN;
1608}
1609
b1c05ba5
DM		 1610
1611/* also used for: pp_read() and pp_recv() (where supported) */
1612
a0d0e21e
LW		 1613PP(pp_sysread)
1614{
20b7effb 1615 dSP; dMARK; dORIGMARK; dTARGET;
0b423688 1616 SSize_t offset;
a0d0e21e
LW		 1617 IO *io;
1618 char *buffer;
0b423688 1619 STRLEN orig_size;
5b54f415 1620 SSize_t length;
eb5c063a 1621 SSize_t count;
748a9306 1622 SV *bufsv;
a0d0e21e 1623 STRLEN blen;
eb5c063a 1624 int fp_utf8;
1dd30107
NC		 1625 int buffer_utf8;
1626 SV *read_target;
eb5c063a
NIS		 1627 Size_t got = 0;
1628 Size_t wanted;
1d636c13 1629 bool charstart = FALSE;
87330c3c
JH		 1630 STRLEN charskip = 0;
1631 STRLEN skip = 0;
159b6efe 1632 GV * const gv = MUTABLE_GV(*++MARK);
375ed12a
JH		 1633 int fd;
1634
5b468f54 1635 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1636 && gv && (io = GvIO(gv)) )
137443ea 1637 {
a5e1d062 1638 const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1b6737cc 1639 if (mg) {
3e0cb5de 1640 return Perl_tied_method(aTHX_ SV_CONST(READ), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC		 1641 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1642 sp - mark);
1b6737cc 1643 }
2ae324a7 1644 }
1645
a0d0e21e
LW		 1646 if (!gv)
1647 goto say_undef;
748a9306 1648 bufsv = *++MARK;
ff68c719 1649 if (! SvOK(bufsv))
76f68e9b 1650 sv_setpvs(bufsv, "");
a0d0e21e 1651 length = SvIVx(*++MARK);
4bac9ae4
CS		 1652 if (length < 0)
1653 DIE(aTHX_ "Negative length");
748a9306 1654 SETERRNO(0,0);
a0d0e21e
LW		 1655 if (MARK < SP)
1656 offset = SvIVx(*++MARK);
1657 else
1658 offset = 0;
1659 io = GvIO(gv);
b5fe5ca2 1660 if (!io || !IoIFP(io)) {
51087808 1661 report_evil_fh(gv);
b5fe5ca2 1662 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1663 goto say_undef;
b5fe5ca2 1664 }
375ed12a
JH		 1665
1666 /* Note that fd can here validly be -1, don't check it yet. */
1667 fd = PerlIO_fileno(IoIFP(io));
1668
0064a8a9 1669 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1670 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1671 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1672 SvUTF8_on(bufsv);
9b9d7ce8 1673 buffer_utf8 = 0;
7d59b7e4
NIS		 1674 }
1675 else {
1676 buffer = SvPV_force(bufsv, blen);
1dd30107 1677 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4 1678 }
4bac9ae4 1679 if (DO_UTF8(bufsv)) {
3f914778 1680 blen = sv_len_utf8_nomg(bufsv);
4bac9ae4 1681 }
7d59b7e4 1682
d0965105
JH		 1683 charstart = TRUE;
1684 charskip = 0;
87330c3c 1685 skip = 0;
4bac9ae4 1686 wanted = length;
d0965105 1687
a0d0e21e 1688#ifdef HAS_SOCKET
533c011a 1689 if (PL_op->op_type == OP_RECV) {
0b423688 1690 Sock_size_t bufsize;
46fc3d4c 1691 char namebuf[MAXPATHLEN];
375ed12a
JH		 1692 if (fd < 0) {
1693 SETERRNO(EBADF,SS_IVCHAN);
1694 RETPUSHUNDEF;
1695 }
b5afd346 1696#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
490ab354
JH		 1697 bufsize = sizeof (struct sockaddr_in);
1698#else
46fc3d4c 1699 bufsize = sizeof namebuf;
490ab354 1700#endif
abf95952
IZ		 1701#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1702 if (bufsize >= 256)
1703 bufsize = 255;
1704#endif
eb160463 1705 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1706 /* 'offset' means 'flags' here */
375ed12a 1707 count = PerlSock_recvfrom(fd, buffer, length, offset,
10edeb5d 1708 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1709 if (count < 0)
a0d0e21e 1710 RETPUSHUNDEF;
8eb023a9
DM		 1711 /* MSG_TRUNC can give oversized count; quietly lose it */
1712 if (count > length)
1713 count = length;
eb5c063a 1714 SvCUR_set(bufsv, count);
748a9306
LW		 1715 *SvEND(bufsv) = '\0';
1716 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1717 if (fp_utf8)
1718 SvUTF8_on(bufsv);
748a9306 1719 SvSETMAGIC(bufsv);
aac0dd9a 1720 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1721 if (!(IoFLAGS(io) & IOf_UNTAINT))
1722 SvTAINTED_on(bufsv);
a0d0e21e 1723 SP = ORIGMARK;
e122534c
TC		 1724#if defined(__CYGWIN__)
1725 /* recvfrom() on cygwin doesn't set bufsize at all for
1726 connected sockets, leaving us with trash in the returned
1727 name, so use the same test as the Win32 code to check if it
1728 wasn't set, and set it [perl #118843] */
1729 if (bufsize == sizeof namebuf)
1730 bufsize = 0;
1731#endif
46fc3d4c 1732 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1733 PUSHs(TARG);
1734 RETURN;
1735 }
a0d0e21e 1736#endif
bbce6d69 1737 if (offset < 0) {
0b423688 1738 if (-offset > (SSize_t)blen)
cea2e8a9 1739 DIE(aTHX_ "Offset outside string");
bbce6d69 1740 offset += blen;
1741 }
eb5c063a
NIS		 1742 if (DO_UTF8(bufsv)) {
1743 /* convert offset-as-chars to offset-as-bytes */
d5f981bb 1744 if (offset >= (SSize_t)blen)
6960c29a
CH		 1745 offset += SvCUR(bufsv) - blen;
1746 else
1747 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a 1748 }
375ed12a 1749
eb5c063a 1750 more_bytes:
375ed12a
JH		 1751 /* Reestablish the fd in case it shifted from underneath us. */
1752 fd = PerlIO_fileno(IoIFP(io));
1753
0b423688 1754 orig_size = SvCUR(bufsv);
1dd30107
NC		 1755 /* Allocating length + offset + 1 isn't perfect in the case of reading
1756 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1757 unduly.
1758 (should be 2 * length + offset + 1, or possibly something longer if
1759 PL_encoding is true) */
eb160463 1760 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
0b423688
TC		 1761 if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */
1762 Zero(buffer+orig_size, offset-orig_size, char);
cd52b7b2 1763 }
eb5c063a 1764 buffer = buffer + offset;
1dd30107
NC		 1765 if (!buffer_utf8) {
1766 read_target = bufsv;
1767 } else {
1768 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1769 concatenate it to the current buffer. */
1770
1771 /* Truncate the existing buffer to the start of where we will be
1772 reading to: */
1773 SvCUR_set(bufsv, offset);
1774
1775 read_target = sv_newmortal();
862a34c6 1776 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1777 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1778 }
eb5c063a 1779
533c011a 1780 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1781#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1782 if (IoTYPE(io) == IoTYPE_SOCKET) {
375ed12a
JH		 1783 if (fd < 0) {
1784 SETERRNO(EBADF,SS_IVCHAN);
1785 count = -1;
1786 }
1787 else
1788 count = PerlSock_recv(fd, buffer, length, 0);
a7092146
GS		 1789 }
1790 else
1791#endif
1792 {
375ed12a
JH		 1793 if (fd < 0) {
1794 SETERRNO(EBADF,RMS_IFI);
1795 count = -1;
1796 }
1797 else
1798 count = PerlLIO_read(fd, buffer, length);
a7092146 1799 }
a0d0e21e
LW		 1800 }
1801 else
3b02c43c 1802 {
eb5c063a
NIS		 1803 count = PerlIO_read(IoIFP(io), buffer, length);
1804 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1805 if (count == 0 && PerlIO_error(IoIFP(io)))
1806 count = -1;
3b02c43c 1807 }
eb5c063a 1808 if (count < 0) {
7716c5c5 1809 if (IoTYPE(io) == IoTYPE_WRONLY)
a5390457 1810 report_wrongway_fh(gv, '>');
a0d0e21e 1811 goto say_undef;
af8c498a 1812 }
aa07b2f6 1813 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1814 *SvEND(read_target) = '\0';
1815 (void)SvPOK_only(read_target);
0064a8a9 1816 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1817 /* Look at utf8 we got back and count the characters */
1df70142 1818 const char *bend = buffer + count;
eb5c063a 1819 while (buffer < bend) {
d0965105
JH		 1820 if (charstart) {
1821 skip = UTF8SKIP(buffer);
1822 charskip = 0;
1823 }
1824 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1825 /* partial character - try for rest of it */
1826 length = skip - (bend-buffer);
aa07b2f6 1827 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1828 charstart = FALSE;
1829 charskip += count;
eb5c063a
NIS		 1830 goto more_bytes;
1831 }
1832 else {
1833 got++;
1834 buffer += skip;
d0965105
JH		 1835 charstart = TRUE;
1836 charskip = 0;
eb5c063a
NIS		 1837 }
1838 }
1839 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1840 provided amount read (count) was what was requested (length)
1841 */
1842 if (got < wanted && count == length) {
d0965105 1843 length = wanted - got;
aa07b2f6 1844 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1845 goto more_bytes;
1846 }
1847 /* return value is character count */
1848 count = got;
1849 SvUTF8_on(bufsv);
1850 }
1dd30107
NC		 1851 else if (buffer_utf8) {
1852 /* Let svcatsv upgrade the bytes we read in to utf8.
1853 The buffer is a mortal so will be freed soon. */
1854 sv_catsv_nomg(bufsv, read_target);
1855 }
748a9306 1856 SvSETMAGIC(bufsv);
aac0dd9a 1857 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1858 if (!(IoFLAGS(io) & IOf_UNTAINT))
1859 SvTAINTED_on(bufsv);
a0d0e21e 1860 SP = ORIGMARK;
eb5c063a 1861 PUSHi(count);
a0d0e21e
LW		 1862 RETURN;
1863
1864 say_undef:
1865 SP = ORIGMARK;
1866 RETPUSHUNDEF;
1867}
1868
b1c05ba5
DM		 1869
1870/* also used for: pp_send() where defined */
1871
60504e18 1872PP(pp_syswrite)
a0d0e21e 1873{
20b7effb 1874 dSP; dMARK; dORIGMARK; dTARGET;
748a9306 1875 SV *bufsv;
83003860 1876 const char *buffer;
8c99d73e 1877 SSize_t retval;
a0d0e21e 1878 STRLEN blen;
c9cb0f41 1879 STRLEN orig_blen_bytes;
64a1bc8e 1880 const int op_type = PL_op->op_type;
c9cb0f41
NC		 1881 bool doing_utf8;
1882 U8 *tmpbuf = NULL;
159b6efe 1883 GV *const gv = MUTABLE_GV(*++MARK);
91472ad4 1884 IO *const io = GvIO(gv);
375ed12a 1885 int fd;
91472ad4
NC		 1886
1887 if (op_type == OP_SYSWRITE && io) {
a5e1d062 1888 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1889 if (mg) {
a79db61d 1890 if (MARK == SP - 1) {
c8834ab7
TC		 1891 SV *sv = *SP;
1892 mXPUSHi(sv_len(sv));
a79db61d
AL		 1893 PUTBACK;
1894 }
1895
3e0cb5de 1896 return Perl_tied_method(aTHX_ SV_CONST(WRITE), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC		 1897 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1898 sp - mark);
64a1bc8e 1899 }
1d603a67 1900 }
a0d0e21e
LW		 1901 if (!gv)
1902 goto say_undef;
64a1bc8e 1903
748a9306 1904 bufsv = *++MARK;
64a1bc8e 1905
748a9306 1906 SETERRNO(0,0);
cf167416 1907 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
8c99d73e 1908 retval = -1;
51087808
NC		 1909 if (io && IoIFP(io))
1910 report_wrongway_fh(gv, '<');
1911 else
1912 report_evil_fh(gv);
b5fe5ca2 1913 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1914 goto say_undef;
1915 }
375ed12a
JH		 1916 fd = PerlIO_fileno(IoIFP(io));
1917 if (fd < 0) {
1918 SETERRNO(EBADF,SS_IVCHAN);
1919 retval = -1;
1920 goto say_undef;
1921 }
7d59b7e4 1922
c9cb0f41
NC		 1923 /* Do this first to trigger any overloading. */
1924 buffer = SvPV_const(bufsv, blen);
1925 orig_blen_bytes = blen;
1926 doing_utf8 = DO_UTF8(bufsv);
1927
7d59b7e4 1928 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7 1929 if (!SvUTF8(bufsv)) {
c9cb0f41
NC		 1930 /* We don't modify the original scalar. */
1931 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1932 buffer = (char *) tmpbuf;
1933 doing_utf8 = TRUE;
1934 }
a0d0e21e 1935 }
c9cb0f41
NC		 1936 else if (doing_utf8) {
1937 STRLEN tmplen = blen;
a79db61d 1938 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
c9cb0f41
NC		 1939 if (!doing_utf8) {
1940 tmpbuf = result;
1941 buffer = (char *) tmpbuf;
1942 blen = tmplen;
1943 }
1944 else {
1945 assert((char *)result == buffer);
1946 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1947 }
7d59b7e4
NIS		 1948 }
1949
e2712234 1950#ifdef HAS_SOCKET
7627e6d0 1951 if (op_type == OP_SEND) {
e2712234
NC		 1952 const int flags = SvIVx(*++MARK);
1953 if (SP > MARK) {
1954 STRLEN mlen;
1955 char * const sockbuf = SvPVx(*++MARK, mlen);
375ed12a 1956 retval = PerlSock_sendto(fd, buffer, blen,
e2712234
NC		 1957 flags, (struct sockaddr *)sockbuf, mlen);
1958 }
1959 else {
375ed12a 1960 retval = PerlSock_send(fd, buffer, blen, flags);
e2712234 1961 }
7627e6d0
NC		 1962 }
1963 else
e2712234 1964#endif
7627e6d0 1965 {
c9cb0f41
NC		 1966 Size_t length = 0; /* This length is in characters. */
1967 STRLEN blen_chars;
7d59b7e4 1968 IV offset;
c9cb0f41
NC		 1969
1970 if (doing_utf8) {
1971 if (tmpbuf) {
1972 /* The SV is bytes, and we've had to upgrade it. */
1973 blen_chars = orig_blen_bytes;
1974 } else {
1975 /* The SV really is UTF-8. */
3f914778
FC		 1976 /* Don't call sv_len_utf8 on a magical or overloaded
1977 scalar, as we might get back a different result. */
1978 blen_chars = sv_or_pv_len_utf8(bufsv, buffer, blen);
c9cb0f41
NC		 1979 }
1980 } else {
1981 blen_chars = blen;
1982 }
1983
1984 if (MARK >= SP) {
1985 length = blen_chars;
1986 } else {
1987#if Size_t_size > IVSIZE
1988 length = (Size_t)SvNVx(*++MARK);
1989#else
1990 length = (Size_t)SvIVx(*++MARK);
1991#endif
4b0c4b6f
NC		 1992 if ((SSize_t)length < 0) {
1993 Safefree(tmpbuf);
c9cb0f41 1994 DIE(aTHX_ "Negative length");
4b0c4b6f 1995 }
7d59b7e4 1996 }
c9cb0f41 1997
bbce6d69 1998 if (MARK < SP) {
a0d0e21e 1999 offset = SvIVx(*++MARK);
bbce6d69 2000 if (offset < 0) {
4b0c4b6f
NC		 2001 if (-offset > (IV)blen_chars) {
2002 Safefree(tmpbuf);
cea2e8a9 2003 DIE(aTHX_ "Offset outside string");
4b0c4b6f 2004 }
c9cb0f41 2005 offset += blen_chars;
3c946528 2006 } else if (offset > (IV)blen_chars) {
4b0c4b6f 2007 Safefree(tmpbuf);
cea2e8a9 2008 DIE(aTHX_ "Offset outside string");
4b0c4b6f 2009 }
bbce6d69 2010 } else
a0d0e21e 2011 offset = 0;
c9cb0f41
NC		 2012 if (length > blen_chars - offset)
2013 length = blen_chars - offset;
2014 if (doing_utf8) {
2015 /* Here we convert length from characters to bytes. */
2016 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
2017 /* Either we had to convert the SV, or the SV is magical, or
2018 the SV has overloading, in which case we can't or mustn't
2019 or mustn't call it again. */
2020
2021 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
2022 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
2023 } else {
2024 /* It's a real UTF-8 SV, and it's not going to change under
2025 us. Take advantage of any cache. */
2026 I32 start = offset;
2027 I32 len_I32 = length;
2028
2029 /* Convert the start and end character positions to bytes.
2030 Remember that the second argument to sv_pos_u2b is relative
2031 to the first. */
2032 sv_pos_u2b(bufsv, &start, &len_I32);
2033
2034 buffer += start;
2035 length = len_I32;
2036 }
7d59b7e4
NIS		 2037 }
2038 else {
2039 buffer = buffer+offset;
2040 }
a7092146 2041#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 2042 if (IoTYPE(io) == IoTYPE_SOCKET) {
375ed12a 2043 retval = PerlSock_send(fd, buffer, length, 0);
a7092146
GS		 2044 }
2045 else
2046#endif
2047 {
94e4c244 2048 /* See the note at doio.c:do_print about filesize limits. --jhi */
375ed12a 2049 retval = PerlLIO_write(fd, buffer, length);
a7092146 2050 }
a0d0e21e 2051 }
c9cb0f41 2052
8c99d73e 2053 if (retval < 0)
a0d0e21e
LW		 2054 goto say_undef;
2055 SP = ORIGMARK;
c9cb0f41 2056 if (doing_utf8)
f36eea10 2057 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
4b0c4b6f 2058
a79db61d 2059 Safefree(tmpbuf);
8c99d73e
GS		 2060#if Size_t_size > IVSIZE
2061 PUSHn(retval);
2062#else
2063 PUSHi(retval);
2064#endif
a0d0e21e
LW		 2065 RETURN;
2066
2067 say_undef:
a79db61d 2068 Safefree(tmpbuf);
a0d0e21e
LW		 2069 SP = ORIGMARK;
2070 RETPUSHUNDEF;
2071}
2072
a0d0e21e
LW		 2073PP(pp_eof)
2074{
20b7effb 2075 dSP;
a0d0e21e 2076 GV *gv;
32e65323 2077 IO *io;
a5e1d062 2078 const MAGIC *mg;
bc0c81ca
NC		 2079 /*
2080 * in Perl 5.12 and later, the additional parameter is a bitmask:
2081 * 0 = eof
2082 * 1 = eof(FH)
2083 * 2 = eof() <- ARGV magic
2084 *
2085 * I'll rely on the compiler's trace flow analysis to decide whether to
2086 * actually assign this out here, or punt it into the only block where it is
2087 * used. Doing it out here is DRY on the condition logic.
2088 */
2089 unsigned int which;
a0d0e21e 2090
bc0c81ca 2091 if (MAXARG) {
32e65323 2092 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
bc0c81ca
NC		 2093 which = 1;
2094 }
b5f55170
NC		 2095 else {
2096 EXTEND(SP, 1);
2097
bc0c81ca 2098 if (PL_op->op_flags & OPf_SPECIAL) {
b5f55170 2099 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
bc0c81ca
NC		 2100 which = 2;
2101 }
2102 else {
b5f55170 2103 gv = PL_last_in_gv; /* eof */
bc0c81ca
NC		 2104 which = 0;
2105 }
b5f55170 2106 }
32e65323
CS		 2107
2108 if (!gv)
2109 RETPUSHNO;
2110
2111 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
3e0cb5de 2112 return tied_method1(SV_CONST(EOF), SP, MUTABLE_SV(io), mg, newSVuv(which));
146174a9 2113 }
4592e6ca 2114
32e65323
CS		 2115 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2116 if (io && !IoIFP(io)) {
b9f2b683 2117 if ((IoFLAGS(io) & IOf_START) && av_tindex(GvAVn(gv)) < 0) {
32e65323
CS		 2118 IoLINES(io) = 0;
2119 IoFLAGS(io) &= ~IOf_START;
d5eb9a46 2120 do_open6(gv, "-", 1, NULL, NULL, 0);
32e65323
CS		 2121 if (GvSV(gv))
2122 sv_setpvs(GvSV(gv), "-");
2123 else
2124 GvSV(gv) = newSVpvs("-");
2125 SvSETMAGIC(GvSV(gv));
2126 }
2127 else if (!nextargv(gv))
2128 RETPUSHYES;
6136c704 2129 }
4592e6ca
NIS		 2130 }
2131
32e65323 2132 PUSHs(boolSV(do_eof(gv)));
a0d0e21e
LW		 2133 RETURN;
2134}
2135
2136PP(pp_tell)
2137{
20b7effb 2138 dSP; dTARGET;
301e8125 2139 GV *gv;
5b468f54 2140 IO *io;
a0d0e21e 2141
b64a1294 2142 if (MAXARG != 0 && (TOPs || POPs))
159b6efe 2143 PL_last_in_gv = MUTABLE_GV(POPs);
ac3697cd
NC		 2144 else
2145 EXTEND(SP, 1);
c4420975 2146 gv = PL_last_in_gv;
4592e6ca 2147
9c9f25b8
NC		 2148 io = GvIO(gv);
2149 if (io) {
a5e1d062 2150 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2151 if (mg) {
3e0cb5de 2152 return tied_method0(SV_CONST(TELL), SP, MUTABLE_SV(io), mg);
a79db61d 2153 }
4592e6ca 2154 }
f4817f32 2155 else if (!gv) {
f03173f2
RGS		 2156 if (!errno)
2157 SETERRNO(EBADF,RMS_IFI);
2158 PUSHi(-1);
2159 RETURN;
2160 }
4592e6ca 2161
146174a9
CB		 2162#if LSEEKSIZE > IVSIZE
2163 PUSHn( do_tell(gv) );
2164#else
a0d0e21e 2165 PUSHi( do_tell(gv) );
146174a9 2166#endif
a0d0e21e
LW		 2167 RETURN;
2168}
2169
b1c05ba5
DM		 2170
2171/* also used for: pp_seek() */
2172
137443ea 2173PP(pp_sysseek)
2174{
20b7effb 2175 dSP;
1df70142 2176 const int whence = POPi;
146174a9 2177#if LSEEKSIZE > IVSIZE
7452cf6a 2178 const Off_t offset = (Off_t)SvNVx(POPs);
146174a9 2179#else
7452cf6a 2180 const Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2181#endif
a0d0e21e 2182
159b6efe 2183 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
9c9f25b8 2184 IO *const io = GvIO(gv);
4592e6ca 2185
9c9f25b8 2186 if (io) {
a5e1d062 2187 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2188 if (mg) {
cb50131a 2189#if LSEEKSIZE > IVSIZE
74f0b550 2190 SV *const offset_sv = newSVnv((NV) offset);
cb50131a 2191#else
74f0b550 2192 SV *const offset_sv = newSViv(offset);
cb50131a 2193#endif
bc0c81ca 2194
3e0cb5de 2195 return tied_method2(SV_CONST(SEEK), SP, MUTABLE_SV(io), mg, offset_sv,
d682515d 2196 newSViv(whence));
a79db61d 2197 }
4592e6ca
NIS		 2198 }
2199
533c011a 2200 if (PL_op->op_type == OP_SEEK)
8903cb82 2201 PUSHs(boolSV(do_seek(gv, offset, whence)));
2202 else {
0bcc34c2 2203 const Off_t sought = do_sysseek(gv, offset, whence);
b448e4fe 2204 if (sought < 0)
146174a9
CB		 2205 PUSHs(&PL_sv_undef);
2206 else {
7452cf6a 2207 SV* const sv = sought ?
146174a9 2208#if LSEEKSIZE > IVSIZE
b448e4fe 2209 newSVnv((NV)sought)
146174a9 2210#else
b448e4fe 2211 newSViv(sought)
146174a9
CB		 2212#endif
2213 : newSVpvn(zero_but_true, ZBTLEN);
6e449a3a 2214 mPUSHs(sv);
146174a9 2215 }
8903cb82 2216 }
a0d0e21e
LW		 2217 RETURN;
2218}
2219
2220PP(pp_truncate)
2221{
39644a26 2222 dSP;
8c99d73e
GS		 2223 /* There seems to be no consensus on the length type of truncate()
2224 * and ftruncate(), both off_t and size_t have supporters. In
2225 * general one would think that when using large files, off_t is
2226 * at least as wide as size_t, so using an off_t should be okay. */
2227 /* XXX Configure probe for the length type of *truncate() needed XXX */
0bcc34c2 2228 Off_t len;
a0d0e21e 2229
25342a55 2230#if Off_t_size > IVSIZE
0bcc34c2 2231 len = (Off_t)POPn;
8c99d73e 2232#else
0bcc34c2 2233 len = (Off_t)POPi;
8c99d73e
GS		 2234#endif
2235 /* Checking for length < 0 is problematic as the type might or
301e8125 2236 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2237 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2238 SETERRNO(0,0);
d05c1ba0 2239 {
5e0adc2d 2240 SV * const sv = POPs;
d05c1ba0
JH		 2241 int result = 1;
2242 GV *tmpgv;
090bf15b
SR		 2243 IO *io;
2244
42409c40
FC		 2245 if (PL_op->op_flags & OPf_SPECIAL
2246 ? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1)
2247 : !!(tmpgv = MAYBE_DEREF_GV(sv)) ) {
9c9f25b8
NC		 2248 io = GvIO(tmpgv);
2249 if (!io)
090bf15b 2250 result = 0;
d05c1ba0 2251 else {
090bf15b 2252 PerlIO *fp;
090bf15b
SR		 2253 do_ftruncate_io:
2254 TAINT_PROPER("truncate");
2255 if (!(fp = IoIFP(io))) {
2256 result = 0;
2257 }
2258 else {
375ed12a
JH		 2259 int fd = PerlIO_fileno(fp);
2260 if (fd < 0) {
2261 SETERRNO(EBADF,RMS_IFI);
2262 result = 0;
2263 } else {
2264 PerlIO_flush(fp);
cbdc8872 2265#ifdef HAS_TRUNCATE
375ed12a 2266 if (ftruncate(fd, len) < 0)
301e8125 2267#else
375ed12a 2268 if (my_chsize(fd, len) < 0)
cbdc8872 2269#endif
375ed12a
JH		 2270 result = 0;
2271 }
090bf15b 2272 }
d05c1ba0 2273 }
cbdc8872 2274 }
5e0adc2d 2275 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2276 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
090bf15b 2277 goto do_ftruncate_io;
5e0adc2d
FC		 2278 }
2279 else {
2280 const char * const name = SvPV_nomg_const_nolen(sv);
d05c1ba0 2281 TAINT_PROPER("truncate");
cbdc8872 2282#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2283 if (truncate(name, len) < 0)
2284 result = 0;
cbdc8872 2285#else
d05c1ba0 2286 {
7452cf6a 2287 const int tmpfd = PerlLIO_open(name, O_RDWR);
d05c1ba0 2288
375ed12a
JH		 2289 if (tmpfd < 0) {
2290 SETERRNO(EBADF,RMS_IFI);
cbdc8872 2291 result = 0;
375ed12a 2292 } else {
d05c1ba0
JH		 2293 if (my_chsize(tmpfd, len) < 0)
2294 result = 0;
2295 PerlLIO_close(tmpfd);
2296 }
cbdc8872 2297 }
a0d0e21e 2298#endif
d05c1ba0 2299 }
a0d0e21e 2300
d05c1ba0
JH		 2301 if (result)
2302 RETPUSHYES;
2303 if (!errno)
93189314 2304 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2305 RETPUSHUNDEF;
2306 }
a0d0e21e
LW		 2307}
2308
b1c05ba5
DM		 2309
2310/* also used for: pp_fcntl() */
2311
a0d0e21e
LW		 2312PP(pp_ioctl)
2313{
20b7effb 2314 dSP; dTARGET;
7452cf6a 2315 SV * const argsv = POPs;
1df70142 2316 const unsigned int func = POPu;
49225470 2317 int optype;
159b6efe 2318 GV * const gv = MUTABLE_GV(POPs);
8a6c0fcb 2319 IO * const io = GvIOn(gv);
a0d0e21e 2320 char *s;
324aa91a 2321 IV retval;
a0d0e21e 2322
8a6c0fcb 2323 if (!IoIFP(io)) {
51087808 2324 report_evil_fh(gv);
93189314 2325 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2326 RETPUSHUNDEF;
2327 }
2328
748a9306 2329 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2330 STRLEN len;
324aa91a 2331 STRLEN need;
748a9306 2332 s = SvPV_force(argsv, len);
324aa91a
HF		 2333 need = IOCPARM_LEN(func);
2334 if (len < need) {
2335 s = Sv_Grow(argsv, need + 1);
2336 SvCUR_set(argsv, need);
a0d0e21e
LW		 2337 }
2338
748a9306 2339 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2340 }
2341 else {
748a9306 2342 retval = SvIV(argsv);
c529f79d 2343 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2344 }
2345
49225470 2346 optype = PL_op->op_type;
ed4b2e6b 2347 TAINT_PROPER(PL_op_desc[optype]);
a0d0e21e
LW		 2348
2349 if (optype == OP_IOCTL)
2350#ifdef HAS_IOCTL
76e3520e 2351 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2352#else
cea2e8a9 2353 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2354#endif
2355 else
c214f4ad
WB		 2356#ifndef HAS_FCNTL
2357 DIE(aTHX_ "fcntl is not implemented");
2358#else
55497cff 2359#if defined(OS2) && defined(__EMX__)
760ac839 2360 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2361#else
760ac839 2362 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2363#endif
6652bd42 2364#endif
a0d0e21e 2365
6652bd42 2366#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2367 if (SvPOK(argsv)) {
2368 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2369 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2370 OP_NAME(PL_op));
748a9306
LW		 2371 s[SvCUR(argsv)] = 0; /* put our null back */
2372 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2373 }
2374
2375 if (retval == -1)
2376 RETPUSHUNDEF;
2377 if (retval != 0) {
2378 PUSHi(retval);
2379 }
2380 else {
8903cb82 2381 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2382 }
4808266b 2383#endif
c214f4ad 2384 RETURN;
a0d0e21e
LW		 2385}
2386
2387PP(pp_flock)
2388{
9cad6237 2389#ifdef FLOCK
20b7effb 2390 dSP; dTARGET;
a0d0e21e 2391 I32 value;
7452cf6a 2392 const int argtype = POPi;
1f28cbca 2393 GV * const gv = MUTABLE_GV(POPs);
9c9f25b8
NC		 2394 IO *const io = GvIO(gv);
2395 PerlIO *const fp = io ? IoIFP(io) : NULL;
16d20bd9 2396
0bcc34c2 2397 /* XXX Looks to me like io is always NULL at this point */
a0d0e21e 2398 if (fp) {
68dc0745 2399 (void)PerlIO_flush(fp);
76e3520e 2400 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2401 }
cb50131a 2402 else {
51087808 2403 report_evil_fh(gv);
a0d0e21e 2404 value = 0;
93189314 2405 SETERRNO(EBADF,RMS_IFI);
cb50131a 2406 }
a0d0e21e
LW		 2407 PUSHi(value);
2408 RETURN;
2409#else
56a94ef2 2410 DIE(aTHX_ PL_no_func, "flock");
a0d0e21e
LW		 2411#endif
2412}
2413
2414/* Sockets. */
2415
7627e6d0
NC		 2416#ifdef HAS_SOCKET
2417
a0d0e21e
LW		 2418PP(pp_socket)
2419{
20b7effb 2420 dSP;
7452cf6a
AL		 2421 const int protocol = POPi;
2422 const int type = POPi;
2423 const int domain = POPi;
159b6efe 2424 GV * const gv = MUTABLE_GV(POPs);
5805b585 2425 IO * const io = GvIOn(gv);
a0d0e21e
LW		 2426 int fd;
2427
57171420
BS		 2428 if (IoIFP(io))
2429 do_close(gv, FALSE);
2430
a0d0e21e 2431 TAINT_PROPER("socket");
6ad3d225 2432 fd = PerlSock_socket(domain, type, protocol);
375ed12a
JH		 2433 if (fd < 0) {
2434 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 2435 RETPUSHUNDEF;
375ed12a 2436 }
460c8493
IZ		 2437 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2438 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2439 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2440 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2441 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2442 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2443 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2444 RETPUSHUNDEF;
2445 }
8d2a6795 2446#if defined(HAS_FCNTL) && defined(F_SETFD)
375ed12a
JH		 2447 if (fcntl(fd, F_SETFD, fd > PL_maxsysfd) < 0) /* ensure close-on-exec */
2448 RETPUSHUNDEF;
8d2a6795 2449#endif
a0d0e21e
LW		 2450
2451 RETPUSHYES;
a0d0e21e 2452}
7627e6d0 2453#endif
a0d0e21e
LW		 2454
2455PP(pp_sockpair)
2456{
c95c94b1 2457#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
20b7effb 2458 dSP;
e0b7b5e2 2459 int fd[2];
7452cf6a
AL		 2460 const int protocol = POPi;
2461 const int type = POPi;
2462 const int domain = POPi;
e0b7b5e2 2463
159b6efe 2464 GV * const gv2 = MUTABLE_GV(POPs);
49561e08
FC		 2465 IO * const io2 = GvIOn(gv2);
2466 GV * const gv1 = MUTABLE_GV(POPs);
2467 IO * const io1 = GvIOn(gv1);
a0d0e21e 2468
49561e08 2469 if (IoIFP(io1))
dc0d0a5f 2470 do_close(gv1, FALSE);
49561e08 2471 if (IoIFP(io2))
dc0d0a5f 2472 do_close(gv2, FALSE);
57171420 2473
a0d0e21e 2474 TAINT_PROPER("socketpair");
6ad3d225 2475 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2476 RETPUSHUNDEF;
460c8493
IZ		 2477 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2478 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2479 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2480 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2481 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2482 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2483 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2484 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2485 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2486 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2487 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2488 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2489 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2490 RETPUSHUNDEF;
2491 }
8d2a6795 2492#if defined(HAS_FCNTL) && defined(F_SETFD)
375ed12a
JH		 2493 /* ensure close-on-exec */
2494 if ((fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd) < 0) ||
2495 (fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd) < 0))
2496 RETPUSHUNDEF;
8d2a6795 2497#endif
a0d0e21e
LW		 2498
2499 RETPUSHYES;
2500#else
cea2e8a9 2501 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2502#endif
2503}
2504
7627e6d0
NC		 2505#ifdef HAS_SOCKET
2506
b1c05ba5
DM		 2507/* also used for: pp_connect() */
2508
a0d0e21e
LW		 2509PP(pp_bind)
2510{
20b7effb 2511 dSP;
7452cf6a 2512 SV * const addrsv = POPs;
349d4f2f
NC		 2513 /* OK, so on what platform does bind modify addr? */
2514 const char *addr;
159b6efe 2515 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2516 IO * const io = GvIOn(gv);
a0d0e21e 2517 STRLEN len;
e0b7b5e2 2518 int op_type;
375ed12a 2519 int fd;
a0d0e21e 2520
8a6c0fcb 2521 if (!IoIFP(io))
a0d0e21e 2522 goto nuts;
375ed12a
JH		 2523 fd = PerlIO_fileno(IoIFP(io));
2524 if (fd < 0)
2525 goto nuts;
a0d0e21e 2526
349d4f2f 2527 addr = SvPV_const(addrsv, len);
e0b7b5e2 2528 op_type = PL_op->op_type;
32b81f04
NC		 2529 TAINT_PROPER(PL_op_desc[op_type]);
2530 if ((op_type == OP_BIND
375ed12a
JH		 2531 ? PerlSock_bind(fd, (struct sockaddr *)addr, len)
2532 : PerlSock_connect(fd, (struct sockaddr *)addr, len))
32b81f04 2533 >= 0)
a0d0e21e
LW		 2534 RETPUSHYES;
2535 else
2536 RETPUSHUNDEF;
2537
2538nuts:
fbcda526 2539 report_evil_fh(gv);
93189314 2540 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2541 RETPUSHUNDEF;
a0d0e21e
LW		 2542}
2543
2544PP(pp_listen)
2545{
20b7effb 2546 dSP;
7452cf6a 2547 const int backlog = POPi;
159b6efe 2548 GV * const gv = MUTABLE_GV(POPs);
8a6c0fcb 2549 IO * const io = GvIOn(gv);
a0d0e21e 2550
8a6c0fcb 2551 if (!IoIFP(io))
a0d0e21e
LW		 2552 goto nuts;
2553
6ad3d225 2554 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2555 RETPUSHYES;
2556 else
2557 RETPUSHUNDEF;
2558
2559nuts:
fbcda526 2560 report_evil_fh(gv);
93189314 2561 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2562 RETPUSHUNDEF;
a0d0e21e
LW		 2563}
2564
2565PP(pp_accept)
2566{
20b7effb 2567 dSP; dTARGET;
eb578fdb 2568 IO *nstio;
93d47a36 2569 char namebuf[MAXPATHLEN];
b5afd346 2570#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
93d47a36
JH		 2571 Sock_size_t len = sizeof (struct sockaddr_in);
2572#else
2573 Sock_size_t len = sizeof namebuf;
2574#endif
159b6efe
NC		 2575 GV * const ggv = MUTABLE_GV(POPs);
2576 GV * const ngv = MUTABLE_GV(POPs);
a0d0e21e
LW		 2577 int fd;
2578
8a6c0fcb 2579 IO * const gstio = GvIO(ggv);
a0d0e21e
LW		 2580 if (!gstio || !IoIFP(gstio))
2581 goto nuts;
2582
2583 nstio = GvIOn(ngv);
93d47a36 2584 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
e294cc5d
JH		 2585#if defined(OEMVS)
2586 if (len == 0) {
2587 /* Some platforms indicate zero length when an AF_UNIX client is
2588 * not bound. Simulate a non-zero-length sockaddr structure in
2589 * this case. */
2590 namebuf[0] = 0; /* sun_len */
2591 namebuf[1] = AF_UNIX; /* sun_family */
2592 len = 2;
2593 }
2594#endif
2595
a0d0e21e
LW		 2596 if (fd < 0)
2597 goto badexit;
a70048fb
AB		 2598 if (IoIFP(nstio))
2599 do_close(ngv, FALSE);
460c8493
IZ		 2600 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2601 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2602 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2603 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2604 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2605 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2606 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2607 goto badexit;
2608 }
8d2a6795 2609#if defined(HAS_FCNTL) && defined(F_SETFD)
375ed12a
JH		 2610 if (fcntl(fd, F_SETFD, fd > PL_maxsysfd) < 0) /* ensure close-on-exec */
2611 goto badexit;
8d2a6795 2612#endif
a0d0e21e 2613
381c1bae 2614#ifdef __SCO_VERSION__
93d47a36 2615 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2616#endif
ed79a026 2617
93d47a36 2618 PUSHp(namebuf, len);
a0d0e21e
LW		 2619 RETURN;
2620
2621nuts:
fbcda526 2622 report_evil_fh(ggv);
93189314 2623 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2624
2625badexit:
2626 RETPUSHUNDEF;
2627
a0d0e21e
LW		 2628}
2629
2630PP(pp_shutdown)
2631{
20b7effb 2632 dSP; dTARGET;
7452cf6a 2633 const int how = POPi;
159b6efe 2634 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2635 IO * const io = GvIOn(gv);
a0d0e21e 2636
8a6c0fcb 2637 if (!IoIFP(io))
a0d0e21e
LW		 2638 goto nuts;
2639
6ad3d225 2640 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2641 RETURN;
2642
2643nuts:
fbcda526 2644 report_evil_fh(gv);
93189314 2645 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2646 RETPUSHUNDEF;
a0d0e21e
LW		 2647}
2648
b1c05ba5
DM		 2649
2650/* also used for: pp_gsockopt() */
2651
a0d0e21e
LW		 2652PP(pp_ssockopt)
2653{
20b7effb 2654 dSP;
7452cf6a 2655 const int optype = PL_op->op_type;
561b68a9 2656 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
7452cf6a
AL		 2657 const unsigned int optname = (unsigned int) POPi;
2658 const unsigned int lvl = (unsigned int) POPi;
159b6efe 2659 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2660 IO * const io = GvIOn(gv);
a0d0e21e 2661 int fd;
1e422769 2662 Sock_size_t len;
a0d0e21e 2663
49225470 2664 if (!IoIFP(io))
a0d0e21e
LW		 2665 goto nuts;
2666
760ac839 2667 fd = PerlIO_fileno(IoIFP(io));
375ed12a
JH		 2668 if (fd < 0)
2669 goto nuts;
a0d0e21e
LW		 2670 switch (optype) {
2671 case OP_GSOCKOPT:
748a9306 2672 SvGROW(sv, 257);
a0d0e21e 2673 (void)SvPOK_only(sv);
748a9306
LW		 2674 SvCUR_set(sv,256);
2675 *SvEND(sv) ='\0';
1e422769 2676 len = SvCUR(sv);
6ad3d225 2677 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2678 goto nuts2;
1e422769 2679 SvCUR_set(sv, len);
748a9306 2680 *SvEND(sv) ='\0';
a0d0e21e
LW		 2681 PUSHs(sv);
2682 break;
2683 case OP_SSOCKOPT: {
1215b447
JH		 2684#if defined(__SYMBIAN32__)
2685# define SETSOCKOPT_OPTION_VALUE_T void *
2686#else
2687# define SETSOCKOPT_OPTION_VALUE_T const char *
2688#endif
2689 /* XXX TODO: We need to have a proper type (a Configure probe,
2690 * etc.) for what the C headers think of the third argument of
2691 * setsockopt(), the option_value read-only buffer: is it
2692 * a "char *", or a "void *", const or not. Some compilers
2693 * don't take kindly to e.g. assuming that "char *" implicitly
2694 * promotes to a "void *", or to explicitly promoting/demoting
2695 * consts to non/vice versa. The "const void *" is the SUS
2696 * definition, but that does not fly everywhere for the above
2697 * reasons. */
2698 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769 2699 int aint;
2700 if (SvPOKp(sv)) {
2d8e6c8d 2701 STRLEN l;
1215b447 2702 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2703 len = l;
1e422769 2704 }
56ee1660 2705 else {
a0d0e21e 2706 aint = (int)SvIV(sv);
1215b447 2707 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW		 2708 len = sizeof(int);
2709 }
6ad3d225 2710 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2711 goto nuts2;
3280af22 2712 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2713 }
2714 break;
2715 }
2716 RETURN;
2717
2718nuts:
fbcda526 2719 report_evil_fh(gv);
93189314 2720 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2721nuts2:
2722 RETPUSHUNDEF;
2723
a0d0e21e
LW		 2724}
2725
b1c05ba5
DM		 2726
2727/* also used for: pp_getsockname() */
2728
a0d0e21e
LW		 2729PP(pp_getpeername)
2730{
20b7effb 2731 dSP;
7452cf6a 2732 const int optype = PL_op->op_type;
159b6efe 2733 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2734 IO * const io = GvIOn(gv);
7452cf6a 2735 Sock_size_t len;
a0d0e21e
LW		 2736 SV *sv;
2737 int fd;
a0d0e21e 2738
49225470 2739 if (!IoIFP(io))
a0d0e21e
LW		 2740 goto nuts;
2741
561b68a9 2742 sv = sv_2mortal(newSV(257));
748a9306 2743 (void)SvPOK_only(sv);
1e422769 2744 len = 256;
2745 SvCUR_set(sv, len);
748a9306 2746 *SvEND(sv) ='\0';
760ac839 2747 fd = PerlIO_fileno(IoIFP(io));
375ed12a
JH		 2748 if (fd < 0)
2749 goto nuts;
a0d0e21e
LW		 2750 switch (optype) {
2751 case OP_GETSOCKNAME:
6ad3d225 2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2753 goto nuts2;
2754 break;
2755 case OP_GETPEERNAME:
6ad3d225 2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2757 goto nuts2;
490ab354
JH		 2758#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2759 {
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2762 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2763 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2764 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2765 goto nuts2;
490ab354
JH		 2766 }
2767 }
2768#endif
a0d0e21e
LW		 2769 break;
2770 }
13826f2c
CS		 2771#ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
1e422769 2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
13826f2c 2776#endif
1e422769 2777 SvCUR_set(sv, len);
748a9306 2778 *SvEND(sv) ='\0';
a0d0e21e
LW		 2779 PUSHs(sv);
2780 RETURN;
2781
2782nuts:
fbcda526 2783 report_evil_fh(gv);
93189314 2784 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2785nuts2:
2786 RETPUSHUNDEF;
7627e6d0 2787}
a0d0e21e 2788
a0d0e21e 2789#endif
a0d0e21e
LW		 2790
2791/* Stat calls. */
2792
b1c05ba5
DM		 2793/* also used for: pp_lstat() */
2794
a0d0e21e
LW		 2795PP(pp_stat)
2796{
39644a26 2797 dSP;
10edeb5d 2798 GV *gv = NULL;
55dd8d50 2799 IO *io = NULL;
54310121 2800 I32 gimme;
a0d0e21e 2801 I32 max = 13;
109c43ed 2802 SV* sv;
a0d0e21e 2803
109c43ed
FC		 2804 if (PL_op->op_flags & OPf_REF ? (gv = cGVOP_gv, 1)
2805 : !!(sv=POPs, gv = MAYBE_DEREF_GV(sv))) {
8a4e5b40 2806 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2807 if (gv != PL_defgv) {
5d329e6e 2808 do_fstat_warning_check:
a2a5de95 2809 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
93fad930
FC		 2810 "lstat() on filehandle%s%"SVf,
2811 gv ? " " : "",
2812 SVfARG(gv
bf29d05f
BF		 2813 ? sv_2mortal(newSVhek(GvENAME_HEK(gv)))
2814 : &PL_sv_no));
5d3e98de 2815 } else if (PL_laststype != OP_LSTAT)
b042df57 2816 /* diag_listed_as: The stat preceding %s wasn't an lstat */
8a4e5b40 2817 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2818 }
2819
2dd78f96 2820 if (gv != PL_defgv) {
b8413ac3 2821 bool havefp;
0d5064f1 2822 do_fstat_have_io:
b8413ac3 2823 havefp = FALSE;
3280af22 2824 PL_laststype = OP_STAT;
0d5064f1 2825 PL_statgv = gv ? gv : (GV *)io;
76f68e9b 2826 sv_setpvs(PL_statname, "");
5228a96c 2827 if(gv) {
ad02613c 2828 io = GvIO(gv);
0d5064f1
FC		 2829 }
2830 if (io) {
5228a96c 2831 if (IoIFP(io)) {
375ed12a
JH		 2832 int fd = PerlIO_fileno(IoIFP(io));
2833 if (fd < 0) {
2834 PL_laststatval = -1;
2835 SETERRNO(EBADF,RMS_IFI);
2836 } else {
2837 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
2838 havefp = TRUE;
2839 }
5228a96c 2840 } else if (IoDIRP(io)) {
5228a96c 2841 PL_laststatval =
3497a01f 2842 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
8080e3c8 2843 havefp = TRUE;
5228a96c
SP		 2844 } else {
2845 PL_laststatval = -1;
2846 }
5228a96c 2847 }
05bb32d2 2848 else PL_laststatval = -1;
daa30a68 2849 if (PL_laststatval < 0 && !havefp) report_evil_fh(gv);
5228a96c
SP		 2850 }
2851
9ddeeac9 2852 if (PL_laststatval < 0) {
a0d0e21e 2853 max = 0;
9ddeeac9 2854 }
a0d0e21e
LW		 2855 }
2856 else {
7cb3f959 2857 const char *file;
109c43ed 2858 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2859 io = MUTABLE_IO(SvRV(sv));
ad02613c
SP		 2860 if (PL_op->op_type == OP_LSTAT)
2861 goto do_fstat_warning_check;
2862 goto do_fstat_have_io;
2863 }
2864
4bac9ae4 2865 SvTAINTED_off(PL_statname); /* previous tainting irrelevant */
109c43ed 2866 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
a0714e2c 2867 PL_statgv = NULL;
533c011a 2868 PL_laststype = PL_op->op_type;
7cb3f959 2869 file = SvPV_nolen_const(PL_statname);
533c011a 2870 if (PL_op->op_type == OP_LSTAT)
7cb3f959 2871 PL_laststatval = PerlLIO_lstat(file, &PL_statcache);
a0d0e21e 2872 else
7cb3f959 2873 PL_laststatval = PerlLIO_stat(file, &PL_statcache);
3280af22 2874 if (PL_laststatval < 0) {
7cb3f959 2875 if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
5d37acd6
DM		 2876 /* PL_warn_nl is constant */
2877 GCC_DIAG_IGNORE(-Wformat-nonliteral);
9014280d 2878 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
5d37acd6
DM		 2879 GCC_DIAG_RESTORE;
2880 }
a0d0e21e
LW		 2881 max = 0;
2882 }
2883 }
2884
54310121 2885 gimme = GIMME_V;
2886 if (gimme != G_ARRAY) {
2887 if (gimme != G_VOID)
2888 XPUSHs(boolSV(max));
2889 RETURN;
a0d0e21e
LW		 2890 }
2891 if (max) {
36477c24 2892 EXTEND(SP, max);
2893 EXTEND_MORTAL(max);
6e449a3a 2894 mPUSHi(PL_statcache.st_dev);
8d8cba88
TC		 2895#if ST_INO_SIZE > IVSIZE
2896 mPUSHn(PL_statcache.st_ino);
2897#else
2898# if ST_INO_SIGN <= 0
6e449a3a 2899 mPUSHi(PL_statcache.st_ino);
8d8cba88
TC		 2900# else
2901 mPUSHu(PL_statcache.st_ino);
2902# endif
2903#endif
6e449a3a
MHM		 2904 mPUSHu(PL_statcache.st_mode);
2905 mPUSHu(PL_statcache.st_nlink);
dfff4baf
BF		 2906
2907 sv_setuid(PUSHmortal, PL_statcache.st_uid);
2908 sv_setgid(PUSHmortal, PL_statcache.st_gid);
2909
cbdc8872 2910#ifdef USE_STAT_RDEV
6e449a3a 2911 mPUSHi(PL_statcache.st_rdev);
cbdc8872 2912#else
84bafc02 2913 PUSHs(newSVpvs_flags("", SVs_TEMP));
cbdc8872 2914#endif
146174a9 2915#if Off_t_size > IVSIZE
6e449a3a 2916 mPUSHn(PL_statcache.st_size);
146174a9 2917#else
6e449a3a 2918 mPUSHi(PL_statcache.st_size);
146174a9 2919#endif
cbdc8872 2920#ifdef BIG_TIME
6e449a3a
MHM		 2921 mPUSHn(PL_statcache.st_atime);
2922 mPUSHn(PL_statcache.st_mtime);
2923 mPUSHn(PL_statcache.st_ctime);
cbdc8872 2924#else
6e449a3a
MHM		 2925 mPUSHi(PL_statcache.st_atime);
2926 mPUSHi(PL_statcache.st_mtime);
2927 mPUSHi(PL_statcache.st_ctime);
cbdc8872 2928#endif
a0d0e21e 2929#ifdef USE_STAT_BLOCKS
6e449a3a
MHM		 2930 mPUSHu(PL_statcache.st_blksize);
2931 mPUSHu(PL_statcache.st_blocks);
a0d0e21e 2932#else
84bafc02
NC		 2933 PUSHs(newSVpvs_flags("", SVs_TEMP));
2934 PUSHs(newSVpvs_flags("", SVs_TEMP));
a0d0e21e
LW		 2935#endif
2936 }
2937 RETURN;
2938}
2939
6c48f025
NC		 2940/* All filetest ops avoid manipulating the perl stack pointer in their main
2941 bodies (since commit d2c4d2d1e22d3125), and return using either
2942 S_ft_return_false() or S_ft_return_true(). These two helper functions are
2943 the only two which manipulate the perl stack. To ensure that no stack
2944 manipulation macros are used, the filetest ops avoid defining a local copy
2945 of the stack pointer with dSP. */
2946
8db8f6b6
FC		 2947/* If the next filetest is stacked up with this one
2948 (PL_op->op_private & OPpFT_STACKING), we leave
2949 the original argument on the stack for success,
2950 and skip the stacked operators on failure.
2951 The next few macros/functions take care of this.
2952*/
2953
2954static OP *
9a6b02e8 2955S_ft_return_false(pTHX_ SV *ret) {
8db8f6b6 2956 OP *next = NORMAL;
697f9d37
NC		 2957 dSP;
2958
226b9201 2959 if (PL_op->op_flags & OPf_REF) XPUSHs(ret);
8db8f6b6
FC		 2960 else SETs(ret);
2961 PUTBACK;
697f9d37 2962
9a6b02e8
NC		 2963 if (PL_op->op_private & OPpFT_STACKING) {
2964 while (OP_IS_FILETEST(next->op_type)
2965 && next->op_private & OPpFT_STACKED)
2966 next = next->op_next;
2967 }
8db8f6b6
FC		 2968 return next;
2969}
2970
07ed4d4b
NC		 2971PERL_STATIC_INLINE OP *
2972S_ft_return_true(pTHX_ SV *ret) {
2973 dSP;
2974 if (PL_op->op_flags & OPf_REF)
2975 XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret));
2976 else if (!(PL_op->op_private & OPpFT_STACKING))
2977 SETs(ret);
2978 PUTBACK;
2979 return NORMAL;
2980}
8db8f6b6 2981
48d023d6
NC		 2982#define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no)
2983#define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef)
2984#define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes)
8db8f6b6 2985
6f1401dc 2986#define tryAMAGICftest_MG(chr) STMT_START { \
d2f67720 2987 if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \
8db8f6b6
FC		 2988 && PL_op->op_flags & OPf_KIDS) { \
2989 OP *next = S_try_amagic_ftest(aTHX_ chr); \
2990 if (next) return next; \
2991 } \
6f1401dc
DM		 2992 } STMT_END
2993
8db8f6b6 2994STATIC OP *
6f1401dc 2995S_try_amagic_ftest(pTHX_ char chr) {
d2f67720 2996 SV *const arg = *PL_stack_sp;
6f1401dc
DM		 2997
2998 assert(chr != '?');
c5780028 2999 if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg);
6f1401dc 3000
d2f67720 3001 if (SvAMAGIC(arg))
6f1401dc
DM		 3002 {
3003 const char tmpchr = chr;
6f1401dc
DM		 3004 SV * const tmpsv = amagic_call(arg,
3005 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
3006 ftest_amg, AMGf_unary);
3007
3008 if (!tmpsv)
8db8f6b6 3009 return NULL;
6f1401dc 3010
48d023d6
NC		 3011 return SvTRUE(tmpsv)
3012 ? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv);
6f1401dc 3013 }
8db8f6b6 3014 return NULL;
6f1401dc
DM		 3015}
3016
3017
b1c05ba5
DM		 3018/* also used for: pp_fteexec() pp_fteread() pp_ftewrite() pp_ftrexec()
3019 * pp_ftrwrite() */
3020
a0d0e21e
LW		 3021PP(pp_ftrread)
3022{
9cad6237 3023 I32 result;
af9e49b4 3024 /* Not const, because things tweak this below. Not bool, because there's
f3574cc6 3025 no guarantee that OPpFT_ACCESS is <= CHAR_MAX */
af9e49b4
NC		 3026#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3027 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
3028 /* Giving some sort of initial value silences compilers. */
3029# ifdef R_OK
3030 int access_mode = R_OK;
3031# else
3032 int access_mode = 0;
3033# endif
5ff3f7a4 3034#else
af9e49b4
NC		 3035 /* access_mode is never used, but leaving use_access in makes the
3036 conditional compiling below much clearer. */
3037 I32 use_access = 0;
5ff3f7a4 3038#endif
2dcac756 3039 Mode_t stat_mode = S_IRUSR;
a0d0e21e 3040
af9e49b4 3041 bool effective = FALSE;
07fe7c6a 3042 char opchar = '?';
af9e49b4 3043
7fb13887
BM		 3044 switch (PL_op->op_type) {
3045 case OP_FTRREAD: opchar = 'R'; break;
3046 case OP_FTRWRITE: opchar = 'W'; break;
3047 case OP_FTREXEC: opchar = 'X'; break;
3048 case OP_FTEREAD: opchar = 'r'; break;
3049 case OP_FTEWRITE: opchar = 'w'; break;
3050 case OP_FTEEXEC: opchar = 'x'; break;
3051 }
6f1401dc 3052 tryAMAGICftest_MG(opchar);
7fb13887 3053
af9e49b4
NC		 3054 switch (PL_op->op_type) {
3055 case OP_FTRREAD:
3056#if !(defined(HAS_ACCESS) && defined(R_OK))
3057 use_access = 0;
3058#endif
3059 break;
3060
3061 case OP_FTRWRITE:
5ff3f7a4 3062#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 3063 access_mode = W_OK;
5ff3f7a4 3064#else
af9e49b4 3065 use_access = 0;
5ff3f7a4 3066#endif
af9e49b4
NC		 3067 stat_mode = S_IWUSR;
3068 break;
a0d0e21e 3069
af9e49b4 3070 case OP_FTREXEC:
5ff3f7a4 3071#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 3072 access_mode = X_OK;
5ff3f7a4 3073#else
af9e49b4 3074 use_access = 0;
5ff3f7a4 3075#endif
af9e49b4
NC		 3076 stat_mode = S_IXUSR;
3077 break;
a0d0e21e 3078
af9e49b4 3079 case OP_FTEWRITE:
faee0e31 3080#ifdef PERL_EFF_ACCESS
af9e49b4 3081 access_mode = W_OK;
5ff3f7a4 3082#endif
af9e49b4 3083 stat_mode = S_IWUSR;
924ba076 3084 /* FALLTHROUGH */
a0d0e21e 3085
af9e49b4
NC		 3086 case OP_FTEREAD:
3087#ifndef PERL_EFF_ACCESS
3088 use_access = 0;
3089#endif
3090 effective = TRUE;
3091 break;
3092
af9e49b4 3093 case OP_FTEEXEC:
faee0e31 3094#ifdef PERL_EFF_ACCESS
b376053d 3095 access_mode = X_OK;
5ff3f7a4 3096#else
af9e49b4 3097 use_access = 0;
5ff3f7a4 3098#endif
af9e49b4
NC		 3099 stat_mode = S_IXUSR;
3100 effective = TRUE;
3101 break;
3102 }
a0d0e21e 3103
af9e49b4
NC		 3104 if (use_access) {
3105#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
d2f67720 3106 const char *name = SvPV_nolen(*PL_stack_sp);
af9e49b4
NC		 3107 if (effective) {
3108# ifdef PERL_EFF_ACCESS
3109 result = PERL_EFF_ACCESS(name, access_mode);
3110# else
3111 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3112 OP_NAME(PL_op));
3113# endif
3114 }
3115 else {
3116# ifdef HAS_ACCESS
3117 result = access(name, access_mode);
3118# else
3119 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3120# endif
3121 }
5ff3f7a4 3122 if (result == 0)
d2c4d2d1 3123 FT_RETURNYES;
5ff3f7a4 3124 if (result < 0)
d2c4d2d1
FC		 3125 FT_RETURNUNDEF;
3126 FT_RETURNNO;
af9e49b4 3127#endif
22865c03 3128 }
af9e49b4 3129
40c852de 3130 result = my_stat_flags(0);
a0d0e21e 3131 if (result < 0)
8db8f6b6 3132 FT_RETURNUNDEF;
af9e49b4 3133 if (cando(stat_mode, effective, &PL_statcache))
8db8f6b6
FC		 3134 FT_RETURNYES;
3135 FT_RETURNNO;
a0d0e21e
LW		 3136}
3137
b1c05ba5
DM		 3138
3139/* also used for: pp_ftatime() pp_ftctime() pp_ftmtime() pp_ftsize() */
3140
a0d0e21e
LW		 3141PP(pp_ftis)
3142{
fbb0b3b3 3143 I32 result;
d7f0a2f4 3144 const int op_type = PL_op->op_type;
07fe7c6a 3145 char opchar = '?';
07fe7c6a
BM		 3146
3147 switch (op_type) {
3148 case OP_FTIS: opchar = 'e'; break;
3149 case OP_FTSIZE: opchar = 's'; break;
3150 case OP_FTMTIME: opchar = 'M'; break;
3151 case OP_FTCTIME: opchar = 'C'; break;
3152 case OP_FTATIME: opchar = 'A'; break;
3153 }
6f1401dc 3154 tryAMAGICftest_MG(opchar);
07fe7c6a 3155
40c852de 3156 result = my_stat_flags(0);
a0d0e21e 3157 if (result < 0)
8db8f6b6 3158 FT_RETURNUNDEF;
d7f0a2f4 3159 if (op_type == OP_FTIS)
8db8f6b6 3160 FT_RETURNYES;
957b0e1d 3161 {
d7f0a2f4
NC		 3162 /* You can't dTARGET inside OP_FTIS, because you'll get
3163 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3164 dTARGET;
d7f0a2f4 3165 switch (op_type) {
957b0e1d
NC		 3166 case OP_FTSIZE:
3167#if Off_t_size > IVSIZE
8db8f6b6 3168 sv_setnv(TARG, (NV)PL_statcache.st_size);
957b0e1d 3169#else
8db8f6b6 3170 sv_setiv(TARG, (IV)PL_statcache.st_size);
957b0e1d
NC		 3171#endif
3172 break;
3173 case OP_FTMTIME:
8db8f6b6
FC		 3174 sv_setnv(TARG,
3175 ((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 );
957b0e1d
NC		 3176 break;
3177 case OP_FTATIME:
8db8f6b6
FC		 3178 sv_setnv(TARG,
3179 ((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 );
957b0e1d
NC		 3180 break;
3181 case OP_FTCTIME:
8db8f6b6
FC		 3182 sv_setnv(TARG,
3183 ((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 );
957b0e1d
NC		 3184 break;
3185 }
8db8f6b6 3186 SvSETMAGIC(TARG);
48d023d6
NC		 3187 return SvTRUE_nomg(TARG)
3188 ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
957b0e1d 3189 }
a0d0e21e
LW		 3190}
3191
b1c05ba5
DM		 3192
3193/* also used for: pp_ftblk() pp_ftchr() pp_ftdir() pp_fteowned()
3194 * pp_ftfile() pp_ftpipe() pp_ftsgid() pp_ftsock()
3195 * pp_ftsuid() pp_ftsvtx() pp_ftzero() */
3196
a0d0e21e
LW		 3197PP(pp_ftrowned)
3198{
fbb0b3b3 3199 I32 result;
07fe7c6a 3200 char opchar = '?';
17ad201a 3201
7fb13887
BM		 3202 switch (PL_op->op_type) {
3203 case OP_FTROWNED: opchar = 'O'; break;
3204 case OP_FTEOWNED: opchar = 'o'; break;
3205 case OP_FTZERO: opchar = 'z'; break;
3206 case OP_FTSOCK: opchar = 'S'; break;
3207 case OP_FTCHR: opchar = 'c'; break;
3208 case OP_FTBLK: opchar = 'b'; break;
3209 case OP_FTFILE: opchar = 'f'; break;
3210 case OP_FTDIR: opchar = 'd'; break;
3211 case OP_FTPIPE: opchar = 'p'; break;
3212 case OP_FTSUID: opchar = 'u'; break;
3213 case OP_FTSGID: opchar = 'g'; break;
3214 case OP_FTSVTX: opchar = 'k'; break;
3215 }
6f1401dc 3216 tryAMAGICftest_MG(opchar);
7fb13887 3217
17ad201a
NC		 3218 /* I believe that all these three are likely to be defined on most every
3219 system these days. */
3220#ifndef S_ISUID
c410dd6a 3221 if(PL_op->op_type == OP_FTSUID) {
8db8f6b6 3222 FT_RETURNNO;
c410dd6a 3223 }
17ad201a
NC		 3224#endif
3225#ifndef S_ISGID
c410dd6a 3226 if(PL_op->op_type == OP_FTSGID) {
8db8f6b6 3227 FT_RETURNNO;
c410dd6a 3228 }
17ad201a
NC		 3229#endif
3230#ifndef S_ISVTX
c410dd6a 3231 if(PL_op->op_type == OP_FTSVTX) {
8db8f6b6 3232 FT_RETURNNO;
c410dd6a 3233 }
17ad201a
NC		 3234#endif
3235
40c852de 3236 result = my_stat_flags(0);
a0d0e21e 3237 if (result < 0)
8db8f6b6 3238 FT_RETURNUNDEF;
f1cb2d48
NC		 3239 switch (PL_op->op_type) {
3240 case OP_FTROWNED:
985213f2 3241 if (PL_statcache.st_uid == PerlProc_getuid())
8db8f6b6 3242 FT_RETURNYES;
f1cb2d48
NC		 3243 break;
3244 case OP_FTEOWNED:
985213f2 3245 if (PL_statcache.st_uid == PerlProc_geteuid())
8db8f6b6 3246 FT_RETURNYES;
f1cb2d48
NC		 3247 break;
3248 case OP_FTZERO:
3249 if (PL_statcache.st_size == 0)
8db8f6b6 3250 FT_RETURNYES;
f1cb2d48
NC		 3251 break;
3252 case OP_FTSOCK:
3253 if (S_ISSOCK(PL_statcache.st_mode))
8db8f6b6 3254 FT_RETURNYES;
f1cb2d48
NC		 3255 break;
3256 case OP_FTCHR:
3257 if (S_ISCHR(PL_statcache.st_mode))
8db8f6b6 3258 FT_RETURNYES;
f1cb2d48
NC		 3259 break;
3260 case OP_FTBLK:
3261 if (S_ISBLK(PL_statcache.st_mode))
8db8f6b6 3262 FT_RETURNYES;
f1cb2d48
NC		 3263 break;
3264 case OP_FTFILE:
3265 if (S_ISREG(PL_statcache.st_mode))
8db8f6b6 3266 FT_RETURNYES;
f1cb2d48
NC		 3267 break;
3268 case OP_FTDIR:
3269 if (S_ISDIR(PL_statcache.st_mode))
8db8f6b6 3270 FT_RETURNYES;
f1cb2d48
NC		 3271 break;
3272 case OP_FTPIPE:
3273 if (S_ISFIFO(PL_statcache.st_mode))
8db8f6b6 3274 FT_RETURNYES;
f1cb2d48 3275 break;
a0d0e21e 3276#ifdef S_ISUID
17ad201a
NC		 3277 case OP_FTSUID:
3278 if (PL_statcache.st_mode & S_ISUID)
8db8f6b6 3279 FT_RETURNYES;
17ad201a 3280 break;
a0d0e21e 3281#endif
a0d0e21e 3282#ifdef S_ISGID
17ad201a
NC		 3283 case OP_FTSGID:
3284 if (PL_statcache.st_mode & S_ISGID)
8db8f6b6 3285 FT_RETURNYES;
17ad201a
NC		 3286 break;
3287#endif
3288#ifdef S_ISVTX
3289 case OP_FTSVTX:
3290 if (PL_statcache.st_mode & S_ISVTX)
8db8f6b6 3291 FT_RETURNYES;
17ad201a 3292 break;
a0d0e21e 3293#endif
17ad201a 3294 }
8db8f6b6 3295 FT_RETURNNO;
a0d0e21e
LW		 3296}
3297
17ad201a 3298PP(pp_ftlink)
a0d0e21e 3299{
500ff13f 3300 I32 result;
07fe7c6a 3301
6f1401dc 3302 tryAMAGICftest_MG('l');
40c852de 3303 result = my_lstat_flags(0);
500ff13f 3304
a0d0e21e 3305 if (result < 0)
8db8f6b6 3306 FT_RETURNUNDEF;
17ad201a 3307 if (S_ISLNK(PL_statcache.st_mode))
8db8f6b6
FC		 3308 FT_RETURNYES;
3309 FT_RETURNNO;
a0d0e21e
LW		 3310}
3311
3312PP(pp_fttty)
3313{
a0d0e21e
LW		 3314 int fd;
3315 GV *gv;
0784aae0 3316 char *name = NULL;
40c852de 3317 STRLEN namelen;
fb73857a 3318
6f1401dc 3319 tryAMAGICftest_MG('t');
07fe7c6a 3320
533c011a 3321 if (PL_op->op_flags & OPf_REF)
146174a9 3322 gv = cGVOP_gv;
e5e154d2 3323 else {
d2f67720 3324 SV *tmpsv = *PL_stack_sp;
e5e154d2 3325 if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) {
40c852de
DM		 3326 name = SvPV_nomg(tmpsv, namelen);
3327 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
e5e154d2 3328 }
40c852de 3329 }
fb73857a 3330
a0d0e21e 3331 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3332 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
b6cb94c5 3333 else if (name && isDIGIT(*name))
96e440d2 3334 fd = grok_atou(name, NULL);
a0d0e21e 3335 else
8db8f6b6 3336 FT_RETURNUNDEF;
375ed12a
JH		 3337 if (fd < 0) {
3338 SETERRNO(EBADF,RMS_IFI);
3339 FT_RETURNUNDEF;
3340 }
6ad3d225 3341 if (PerlLIO_isatty(fd))
8db8f6b6
FC		 3342 FT_RETURNYES;
3343 FT_RETURNNO;
a0d0e21e
LW		 3344}
3345
b1c05ba5
DM		 3346
3347/* also used for: pp_ftbinary() */
3348
a0d0e21e
LW		 3349PP(pp_fttext)
3350{
a0d0e21e 3351 I32 i;
b66f3475 3352 SSize_t len;
a0d0e21e
LW		 3353 I32 odd = 0;
3354 STDCHAR tbuf[512];
eb578fdb
KW		 3355 STDCHAR *s;
3356 IO *io;
3357 SV *sv = NULL;
5f05dabc 3358 GV *gv;
146174a9 3359 PerlIO *fp;
a0d0e21e 3360
6f1401dc 3361 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3362
533c011a 3363 if (PL_op->op_flags & OPf_REF)
146174a9 3364 gv = cGVOP_gv;
d2c4d2d1 3365 else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t))
8db8f6b6 3366 == OPpFT_STACKED)
ba8182f8 3367 gv = PL_defgv;
d2c4d2d1 3368 else {
d2f67720 3369 sv = *PL_stack_sp;
d2c4d2d1 3370 gv = MAYBE_DEREF_GV_nomg(sv);
8db8f6b6 3371 }
5f05dabc 3372
3373 if (gv) {
3280af22
NIS		 3374 if (gv == PL_defgv) {
3375 if (PL_statgv)
bd5f6c01
FC		 3376 io = SvTYPE(PL_statgv) == SVt_PVIO
3377 ? (IO *)PL_statgv
3378 : GvIO(PL_statgv);
a0d0e21e 3379 else {
a0d0e21e
LW		 3380 goto really_filename;
3381 }
3382 }
3383 else {
3280af22 3384 PL_statgv = gv;
76f68e9b 3385 sv_setpvs(PL_statname, "");
3280af22 3386 io = GvIO(PL_statgv);
a0d0e21e 3387 }
eb4c377a 3388 PL_laststatval = -1;
21a64c3e 3389 PL_laststype = OP_STAT;
a0d0e21e 3390 if (io && IoIFP(io)) {
375ed12a 3391 int fd;
5f05dabc 3392 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3393 DIE(aTHX_ "-T and -B not implemented on filehandles");
375ed12a
JH		 3394 fd = PerlIO_fileno(IoIFP(io));
3395 if (fd < 0) {
3396 SETERRNO(EBADF,RMS_IFI);
3397 FT_RETURNUNDEF;
3398 }
3399 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
3280af22 3400 if (PL_laststatval < 0)
8db8f6b6 3401 FT_RETURNUNDEF;
9cbac4c7 3402 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3403 if (PL_op->op_type == OP_FTTEXT)
8db8f6b6 3404 FT_RETURNNO;
a0d0e21e 3405 else
8db8f6b6 3406 FT_RETURNYES;
9cbac4c7 3407 }
a20bf0c3 3408 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3409 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3410 if (i != EOF)
760ac839 3411 (void)PerlIO_ungetc(IoIFP(io),i);
bd47baf2
NT		 3412 else
3413 /* null file is anything */
3414 FT_RETURNYES;
a0d0e21e 3415 }
a20bf0c3
JH		 3416 len = PerlIO_get_bufsiz(IoIFP(io));
3417 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3418 /* sfio can have large buffers - limit to 512 */
3419 if (len > 512)
3420 len = 512;
a0d0e21e
LW		 3421 }
3422 else {
2ad48547 3423 SETERRNO(EBADF,RMS_IFI);
3f12cff4 3424 report_evil_fh(gv);
93189314 3425 SETERRNO(EBADF,RMS_IFI);
8db8f6b6 3426 FT_RETURNUNDEF;
a0d0e21e
LW		 3427 }
3428 }
3429 else {
7cb3f959 3430 const char *file;
375ed12a 3431 int fd;
7cb3f959 3432
9959d439 3433 assert(sv);
81e9306f 3434 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
5f05dabc 3435 really_filename:
7cb3f959 3436 file = SvPVX_const(PL_statname);
a0714e2c 3437 PL_statgv = NULL;
7cb3f959 3438 if (!(fp = PerlIO_open(file, "r"))) {
ad2d99e3
FC		 3439 if (!gv) {
3440 PL_laststatval = -1;
3441 PL_laststype = OP_STAT;
3442 }
7cb3f959 3443 if (ckWARN(WARN_NEWLINE) && should_warn_nl(file)) {
5d37acd6
DM		 3444 /* PL_warn_nl is constant */
3445 GCC_DIAG_IGNORE(-Wformat-nonliteral);
9014280d 3446 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
5d37acd6
DM		 3447 GCC_DIAG_RESTORE;
3448 }
8db8f6b6 3449 FT_RETURNUNDEF;
a0d0e21e 3450 }
ad2d99e3 3451 PL_laststype = OP_STAT;
375ed12a
JH		 3452 fd = PerlIO_fileno(fp);
3453 if (fd < 0) {
3454 (void)PerlIO_close(fp);
3455 SETERRNO(EBADF,RMS_IFI);
3456 FT_RETURNUNDEF;
3457 }
3458 PL_laststatval = PerlLIO_fstat(fd, &PL_statcache);
146174a9
CB		 3459 if (PL_laststatval < 0) {
3460 (void)PerlIO_close(fp);
375ed12a 3461 SETERRNO(EBADF,RMS_IFI);
8db8f6b6 3462 FT_RETURNUNDEF;
146174a9 3463 }
bd61b366 3464 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
146174a9
CB		 3465 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3466 (void)PerlIO_close(fp);
a0d0e21e 3467 if (len <= 0) {
533c011a 3468 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
8db8f6b6
FC		 3469 FT_RETURNNO; /* special case NFS directories */
3470 FT_RETURNYES; /* null file is anything */
a0d0e21e
LW		 3471 }
3472 s = tbuf;
3473 }
3474
3475 /* now scan s to look for textiness */
3476
146174a9
CB		 3477#if defined(DOSISH) || defined(USEMYBINMODE)
3478 /* ignore trailing ^Z on short files */
58c0efa5 3479 if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
146174a9
CB		 3480 --len;
3481#endif
3482
f13c8ddb
KW		 3483 assert(len);
3484 if (! is_ascii_string((U8 *) s, len)) {
3485 const U8 *ep;
3486
3487 /* Here contains a non-ASCII. See if the entire string is UTF-8. But
3488 * the buffer may end in a partial character, so consider it UTF-8 if
3489 * the first non-UTF8 char is an ending partial */
3490 if (is_utf8_string_loc((U8 *) s, len, &ep)
3491 || ep + UTF8SKIP(ep) > (U8 *) (s + len))
3492 {
3493 if (PL_op->op_type == OP_FTTEXT) {
3494 FT_RETURNYES;
3495 }
3496 else {
3497 FT_RETURNNO;
3498 }
3499 }
3500 }
3501
3502 /* Here, is not UTF-8 or is entirely ASCII. Look through the buffer for
3503 * things that wouldn't be in ASCII text or rich ASCII text. Count these
3504 * in 'odd' */
a0d0e21e
LW		 3505 for (i = 0; i < len; i++, s++) {
3506 if (!*s) { /* null never allowed in text */
3507 odd += len;
3508 break;
3509 }
130c5df3 3510#ifdef USE_LOCALE_CTYPE
f13c8ddb
KW		 3511 if (IN_LC_RUNTIME(LC_CTYPE)) {
3512 if ( isPRINT_LC(*s) || isSPACE_LC(*s)) {
b3f66c68 3513 continue;
f13c8ddb
KW		 3514 }
3515 }
3516 else
3517#endif
3518 if (isPRINT_A(*s)
3519 /* VT occurs so rarely in text, that we consider it odd */
3520 || (isSPACE_A(*s) && *s != VT_NATIVE)
3521
3522 /* But there is a fair amount of backspaces and escapes in
3523 * some text */
3524 || *s == '\b'
3525 || *s == ESC_NATIVE)
3526 {
3527 continue;
3528 }
3529 odd++;
a0d0e21e
LW		 3530 }
3531
533c011a 3532 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
8db8f6b6 3533 FT_RETURNNO;
a0d0e21e 3534 else
8db8f6b6 3535 FT_RETURNYES;
a0d0e21e
LW		 3536}
3537
a0d0e21e
LW		 3538/* File calls. */
3539
3540PP(pp_chdir)
3541{
20b7effb 3542 dSP; dTARGET;
c445ea15 3543 const char *tmps = NULL;
9a957fbc 3544 GV *gv = NULL;
a0d0e21e 3545
c4aca7d0 3546 if( MAXARG == 1 ) {
9a957fbc 3547 SV * const sv = POPs;
d4ac975e
GA		 3548 if (PL_op->op_flags & OPf_SPECIAL) {
3549 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3550 }
2ea1cce7 3551 else if (!(gv = MAYBE_DEREF_GV(sv)))
a0c4bfab 3552 tmps = SvPV_nomg_const_nolen(sv);
c4aca7d0 3553 }
35ae6b54 3554
c4aca7d0 3555 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3556 HV * const table = GvHVn(PL_envgv);
3557 SV **svp;
3558
a4fc7abc
AL		 3559 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3560 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
491527d0 3561#ifdef VMS
a4fc7abc 3562 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
491527d0 3563#endif
35ae6b54
MS		 3564 )
3565 {
3566 if( MAXARG == 1 )
9014280d 3567 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3568 tmps = SvPV_nolen_const(*svp);
35ae6b54 3569 }
72f496dc 3570 else {
389ec635 3571 PUSHi(0);
b7ab37f8 3572 TAINT_PROPER("chdir");
389ec635
MS		 3573 RETURN;
3574 }
8ea155d1 3575 }
8ea155d1 3576
a0d0e21e 3577 TAINT_PROPER("chdir");
c4aca7d0
GA		 3578 if (gv) {
3579#ifdef HAS_FCHDIR
9a957fbc 3580 IO* const io = GvIO(gv);
c4aca7d0 3581 if (io) {
c08d6937 3582 if (IoDIRP(io)) {
3497a01f 3583 PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
c08d6937 3584 } else if (IoIFP(io)) {
375ed12a
JH		 3585 int fd = PerlIO_fileno(IoIFP(io));
3586 if (fd < 0) {
3587 goto nuts;
3588 }
3589 PUSHi(fchdir(fd) >= 0);
c4aca7d0
GA		 3590 }
3591 else {
375ed12a 3592 goto nuts;
c4aca7d0 3593 }
375ed12a
JH		 3594 } else {
3595 goto nuts;
c4aca7d0 3596 }
375ed12a 3597
c4aca7d0
GA		 3598#else
3599 DIE(aTHX_ PL_no_func, "fchdir");
3600#endif
3601 }
3602 else
b8ffc8df 3603 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3604#ifdef VMS
3605 /* Clear the DEFAULT element of ENV so we'll get the new value
3606 * in the future. */
6b88bc9c 3607 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3608#endif
a0d0e21e 3609 RETURN;
375ed12a
JH		 3610
3611 nuts:
3612 report_evil_fh(gv);
3613 SETERRNO(EBADF,RMS_IFI);
3614 PUSHi(0);
3615 RETURN;
a0d0e21e
LW		 3616}
3617
b1c05ba5
DM		 3618
3619/* also used for: pp_chmod() pp_kill() pp_unlink() pp_utime() */
3620
a0d0e21e
LW		 3621PP(pp_chown)
3622{
20b7effb 3623 dSP; dMARK; dTARGET;
605b9385 3624 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
76ffd3b9 3625
a0d0e21e 3626 SP = MARK;
b59aed67 3627 XPUSHi(value);
a0d0e21e 3628 RETURN;
a0d0e21e
LW		 3629}
3630
3631PP(pp_chroot)
3632{
a0d0e21e 3633#ifdef HAS_CHROOT
20b7effb 3634 dSP; dTARGET;
7452cf6a 3635 char * const tmps = POPpx;
a0d0e21e
LW		 3636 TAINT_PROPER("chroot");
3637 PUSHi( chroot(tmps) >= 0 );
3638 RETURN;
3639#else
cea2e8a9 3640 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3641#endif
3642}
3643
a0d0e21e
LW		 3644PP(pp_rename)
3645{
20b7effb 3646 dSP; dTARGET;
a0d0e21e 3647 int anum;
7452cf6a
AL		 3648 const char * const tmps2 = POPpconstx;
3649 const char * const tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3650 TAINT_PROPER("rename");
3651#ifdef HAS_RENAME
baed7233 3652 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3653#else
6b88bc9c 3654 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3655 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3656 anum = 1;
3657 else {
985213f2 3658 if (PerlProc_geteuid() || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3659 (void)UNLINK(tmps2);
3660 if (!(anum = link(tmps, tmps2)))
3661 anum = UNLINK(tmps);
3662 }
a0d0e21e
LW		 3663 }
3664#endif
3665 SETi( anum >= 0 );
3666 RETURN;
3667}
3668
b1c05ba5
DM		 3669
3670/* also used for: pp_symlink() */
3671
ce6987d0 3672#if defined(HAS_LINK) || defined(HAS_SYMLINK)
a0d0e21e
LW		 3673PP(pp_link)
3674{
20b7effb 3675 dSP; dTARGET;
ce6987d0
NC		 3676 const int op_type = PL_op->op_type;
3677 int result;
a0d0e21e 3678
ce6987d0
NC		 3679# ifndef HAS_LINK
3680 if (op_type == OP_LINK)
3681 DIE(aTHX_ PL_no_func, "link");
3682# endif
3683# ifndef HAS_SYMLINK
3684 if (op_type == OP_SYMLINK)
3685 DIE(aTHX_ PL_no_func, "symlink");
3686# endif
3687
3688 {
7452cf6a
AL		 3689 const char * const tmps2 = POPpconstx;
3690 const char * const tmps = SvPV_nolen_const(TOPs);
ce6987d0
NC		 3691 TAINT_PROPER(PL_op_desc[op_type]);
3692 result =
3693# if defined(HAS_LINK)
3694# if defined(HAS_SYMLINK)
3695 /* Both present - need to choose which. */
3696 (op_type == OP_LINK) ?
3697 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3698# else
4a8ebb7f
SH		 3699 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3700 PerlLIO_link(tmps, tmps2);
ce6987d0
NC		 3701# endif
3702# else
3703# if defined(HAS_SYMLINK)
4a8ebb7f
SH		 3704 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3705 symlink(tmps, tmps2);
ce6987d0
NC		 3706# endif
3707# endif
3708 }
3709
3710 SETi( result >= 0 );
a0d0e21e 3711 RETURN;
ce6987d0 3712}
a0d0e21e 3713#else
b1c05ba5
DM		 3714
3715/* also used for: pp_symlink() */
3716
ce6987d0
NC		 3717PP(pp_link)
3718{
3719 /* Have neither. */
3720 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 3721}
ce6987d0 3722#endif
a0d0e21e
LW		 3723
3724PP(pp_readlink)
3725{
76ffd3b9 3726 dSP;
a0d0e21e 3727#ifdef HAS_SYMLINK
76ffd3b9 3728 dTARGET;
10516c54 3729 const char *tmps;
46fc3d4c 3730 char buf[MAXPATHLEN];
51b468f6 3731 SSize_t len;
46fc3d4c 3732
fb73857a 3733 TAINT;
10516c54 3734 tmps = POPpconstx;
51b468f6
JH		 3735 /* NOTE: if the length returned by readlink() is sizeof(buf) - 1,
3736 * it is impossible to know whether the result was truncated. */
97dcea33 3737 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3738 if (len < 0)
3739 RETPUSHUNDEF;
51b468f6
JH		 3740 if (len != -1)
3741 buf[len] = '\0';
a0d0e21e
LW		 3742 PUSHp(buf, len);
3743 RETURN;
3744#else
3745 EXTEND(SP, 1);
3746 RETSETUNDEF; /* just pretend it's a normal file */
3747#endif
3748}
3749
3750#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3751STATIC int
b464bac0 3752S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3753{
b464bac0 3754 char * const save_filename = filename;
1e422769 3755 char *cmdline;
3756 char *s;
760ac839 3757 PerlIO *myfp;
1e422769 3758 int anum = 1;
6fca0082 3759 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
a0d0e21e 3760
7918f24d
NC		 3761 PERL_ARGS_ASSERT_DOONELINER;
3762
6fca0082
SP		 3763 Newx(cmdline, size, char);
3764 my_strlcpy(cmdline, cmd, size);
3765 my_strlcat(cmdline, " ", size);
1e422769 3766 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3767 *s++ = '\\';
3768 *s++ = *filename++;
3769 }
d1307786
JH		 3770 if (s - cmdline < size)
3771 my_strlcpy(s, " 2>&1", size - (s - cmdline));
6ad3d225 3772 myfp = PerlProc_popen(cmdline, "r");
1e422769 3773 Safefree(cmdline);
3774
a0d0e21e 3775 if (myfp) {
0bcc34c2 3776 SV * const tmpsv = sv_newmortal();
6b88bc9c 3777 /* Need to save/restore 'PL_rs' ?? */
760ac839 3778 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3779 (void)PerlProc_pclose(myfp);
bd61b366 3780 if (s != NULL) {
1e422769 3781 int e;
3782 for (e = 1;
a0d0e21e 3783#ifdef HAS_SYS_ERRLIST
1e422769 3784 e <= sys_nerr
3785#endif
3786 ; e++)
3787 {
3788 /* you don't see this */
9b86a269 3789 const char * const errmsg = Strerror(e) ;
1e422769 3790 if (!errmsg)
3791 break;
3792 if (instr(s, errmsg)) {
3793 SETERRNO(e,0);
3794 return 0;
3795 }
a0d0e21e 3796 }
748a9306 3797 SETERRNO(0,0);
a0d0e21e
LW		 3798#ifndef EACCES
3799#define EACCES EPERM
3800#endif
1e422769 3801 if (instr(s, "cannot make"))
93189314 3802 SETERRNO(EEXIST,RMS_FEX);
1e422769 3803 else if (instr(s, "existing file"))
93189314 3804 SETERRNO(EEXIST,RMS_FEX);
1e422769 3805 else if (instr(s, "ile exists"))
93189314 3806 SETERRNO(EEXIST,RMS_FEX);
1e422769 3807 else if (instr(s, "non-exist"))
93189314 3808 SETERRNO(ENOENT,RMS_FNF);
1e422769 3809 else if (instr(s, "does not exist"))
93189314 3810 SETERRNO(ENOENT,RMS_FNF);
1e422769 3811 else if (instr(s, "not empty"))
93189314 3812 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3813 else if (instr(s, "cannot access"))
93189314 3814 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3815 else
93189314 3816 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3817 return 0;
3818 }
3819 else { /* some mkdirs return no failure indication */
6b88bc9c 3820 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3821 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3822 anum = !anum;
3823 if (anum)
748a9306 3824 SETERRNO(0,0);
a0d0e21e 3825 else
93189314 3826 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3827 }
3828 return anum;
3829 }
3830 else
3831 return 0;
3832}
3833#endif
3834
0c54f65b
RGS		 3835/* This macro removes trailing slashes from a directory name.
3836 * Different operating and file systems take differently to
3837 * trailing slashes. According to POSIX 1003.1 1996 Edition
3838 * any number of trailing slashes should be allowed.
3839 * Thusly we snip them away so that even non-conforming
3840 * systems are happy.
3841 * We should probably do this "filtering" for all
3842 * the functions that expect (potentially) directory names:
3843 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3844 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3845
5c144d81 3846#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3847 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3848 do { \
3849 (len)--; \
3850 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3851 (tmps) = savepvn((tmps), (len)); \
3852 (copy) = TRUE; \
3853 }
3854
a0d0e21e
LW		 3855PP(pp_mkdir)
3856{
20b7effb 3857 dSP; dTARGET;
df25ddba 3858 STRLEN len;
5c144d81 3859 const char *tmps;
df25ddba 3860 bool copy = FALSE;
f6c68483 3861 const int mode = (MAXARG > 1 && (TOPs||((void)POPs,0))) ? POPi : 0777;
5a211162 3862
0c54f65b 3863 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3864
3865 TAINT_PROPER("mkdir");
3866#ifdef HAS_MKDIR
b8ffc8df 3867 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e 3868#else
0bcc34c2
AL		 3869 {
3870 int oldumask;
a0d0e21e 3871 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3872 oldumask = PerlLIO_umask(0);
3873 PerlLIO_umask(oldumask);
3874 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
0bcc34c2 3875 }
a0d0e21e 3876#endif
df25ddba
JH		 3877 if (copy)
3878 Safefree(tmps);
a0d0e21e
LW		 3879 RETURN;
3880}
3881
3882PP(pp_rmdir)
3883{
20b7effb 3884 dSP; dTARGET;
0c54f65b 3885 STRLEN len;
5c144d81 3886 const char *tmps;
0c54f65b 3887 bool copy = FALSE;
a0d0e21e 3888
0c54f65b 3889 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3890 TAINT_PROPER("rmdir");
3891#ifdef HAS_RMDIR
b8ffc8df 3892 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3893#else
0c54f65b 3894 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3895#endif
0c54f65b
RGS		 3896 if (copy)
3897 Safefree(tmps);
a0d0e21e
LW		 3898 RETURN;
3899}
3900
3901/* Directory calls. */
3902
3903PP(pp_open_dir)
3904{
a0d0e21e 3905#if defined(Direntry_t) && defined(HAS_READDIR)
20b7effb 3906 dSP;
7452cf6a 3907 const char * const dirname = POPpconstx;
159b6efe 3908 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 3909 IO * const io = GvIOn(gv);
a0d0e21e 3910
a2a5de95 3911 if ((IoIFP(io) || IoOFP(io)))
d1d15184 3912 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
d0c0e7dd
FC		 3913 "Opening filehandle %"HEKf" also as a directory",
3914 HEKfARG(GvENAME_HEK(gv)) );
a0d0e21e 3915 if (IoDIRP(io))
6ad3d225 3916 PerlDir_close(IoDIRP(io));
b8ffc8df 3917 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3918 goto nope;
3919
3920 RETPUSHYES;
3921nope:
3922 if (!errno)
93189314 3923 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3924 RETPUSHUNDEF;
3925#else
cea2e8a9 3926 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3927#endif
3928}
3929
3930PP(pp_readdir)
3931{
34b7f128
AMS		 3932#if !defined(Direntry_t) || !defined(HAS_READDIR)
3933 DIE(aTHX_ PL_no_dir_func, "readdir");
3934#else
fd8cd3a3 3935#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3936 Direntry_t *readdir (DIR *);
a0d0e21e 3937#endif
34b7f128
AMS		 3938 dSP;
3939
3940 SV *sv;
f54cb97a 3941 const I32 gimme = GIMME;
159b6efe 3942 GV * const gv = MUTABLE_GV(POPs);
eb578fdb
KW		 3943 const Direntry_t *dp;
3944 IO * const io = GvIOn(gv);
a0d0e21e 3945
8a6c0fcb 3946 if (!IoDIRP(io)) {
a2a5de95 3947 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
d0c0e7dd
FC		 3948 "readdir() attempted on invalid dirhandle %"HEKf,
3949 HEKfARG(GvENAME_HEK(gv)));
3b7fbd4a
SP		 3950 goto nope;
3951 }
a0d0e21e 3952
34b7f128
AMS		 3953 do {
3954 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3955 if (!dp)
3956 break;
a0d0e21e 3957#ifdef DIRNAMLEN
34b7f128 3958 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3959#else
34b7f128 3960 sv = newSVpv(dp->d_name, 0);
fb73857a 3961#endif
34b7f128
AMS		 3962 if (!(IoFLAGS(io) & IOf_UNTAINT))
3963 SvTAINTED_on(sv);
6e449a3a 3964 mXPUSHs(sv);
a79db61d 3965 } while (gimme == G_ARRAY);
34b7f128
AMS		 3966
3967 if (!dp && gimme != G_ARRAY)
ee71f1d1 3968 RETPUSHUNDEF;
34b7f128 3969
a0d0e21e
LW		 3970 RETURN;
3971
3972nope:
3973 if (!errno)
93189314 3974 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3975 if (GIMME == G_ARRAY)
3976 RETURN;
3977 else
3978 RETPUSHUNDEF;
a0d0e21e
LW		 3979#endif
3980}
3981
3982PP(pp_telldir)
3983{
a0d0e21e 3984#if defined(HAS_TELLDIR) || defined(telldir)
20b7effb 3985 dSP; dTARGET;
968dcd91
JH		 3986 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3987 /* XXX netbsd still seemed to.
3988 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3989 --JHI 1999-Feb-02 */
3990# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3991 long telldir (DIR *);
dfe9444c 3992# endif
159b6efe 3993 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 3994 IO * const io = GvIOn(gv);
a0d0e21e 3995
8a6c0fcb 3996 if (!IoDIRP(io)) {
a2a5de95 3997 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
d0c0e7dd
FC		 3998 "telldir() attempted on invalid dirhandle %"HEKf,
3999 HEKfARG(GvENAME_HEK(gv)));
abc7ecad
SP		 4000 goto nope;
4001 }
a0d0e21e 4002
6ad3d225 4003 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 4004 RETURN;
4005nope:
4006 if (!errno)
93189314 4007 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4008 RETPUSHUNDEF;
4009#else
cea2e8a9 4010 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 4011#endif
4012}
4013
4014PP(pp_seekdir)
4015{
a0d0e21e 4016#if defined(HAS_SEEKDIR) || defined(seekdir)
20b7effb 4017 dSP;
7452cf6a 4018 const long along = POPl;
159b6efe 4019 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 4020 IO * const io = GvIOn(gv);
a0d0e21e 4021
8a6c0fcb 4022 if (!IoDIRP(io)) {
a2a5de95 4023 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
d0c0e7dd
FC		 4024 "seekdir() attempted on invalid dirhandle %"HEKf,
4025 HEKfARG(GvENAME_HEK(gv)));
abc7ecad
SP		 4026 goto nope;
4027 }
6ad3d225 4028 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4029
4030 RETPUSHYES;
4031nope:
4032 if (!errno)
93189314 4033 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4034 RETPUSHUNDEF;
4035#else
cea2e8a9 4036 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4037#endif
4038}
4039
4040PP(pp_rewinddir)
4041{
a0d0e21e 4042#if defined(HAS_REWINDDIR) || defined(rewinddir)
20b7effb 4043 dSP;
159b6efe 4044 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 4045 IO * const io = GvIOn(gv);
a0d0e21e 4046
8a6c0fcb 4047 if (!IoDIRP(io)) {
a2a5de95 4048 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
d0c0e7dd
FC		 4049 "rewinddir() attempted on invalid dirhandle %"HEKf,
4050 HEKfARG(GvENAME_HEK(gv)));
a0d0e21e 4051 goto nope;
abc7ecad 4052 }
6ad3d225 4053 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4054 RETPUSHYES;
4055nope:
4056 if (!errno)
93189314 4057 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4058 RETPUSHUNDEF;
4059#else
cea2e8a9 4060 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4061#endif
4062}
4063
4064PP(pp_closedir)
4065{
a0d0e21e 4066#if defined(Direntry_t) && defined(HAS_READDIR)
20b7effb 4067 dSP;
159b6efe 4068 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 4069 IO * const io = GvIOn(gv);
a0d0e21e 4070
8a6c0fcb 4071 if (!IoDIRP(io)) {
a2a5de95 4072 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
d0c0e7dd
FC		 4073 "closedir() attempted on invalid dirhandle %"HEKf,
4074 HEKfARG(GvENAME_HEK(gv)));
abc7ecad
SP		 4075 goto nope;
4076 }
a0d0e21e 4077#ifdef VOID_CLOSEDIR
6ad3d225 4078 PerlDir_close(IoDIRP(io));
a0d0e21e 4079#else
6ad3d225 4080 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4081 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4082 goto nope;
748a9306 4083 }
a0d0e21e
LW		 4084#endif
4085 IoDIRP(io) = 0;
4086
4087 RETPUSHYES;
4088nope:
4089 if (!errno)
93189314 4090 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4091 RETPUSHUNDEF;
4092#else
cea2e8a9 4093 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4094#endif
4095}
4096
4097/* Process control. */
4098
4099PP(pp_fork)
4100{
44a8e56a 4101#ifdef HAS_FORK
20b7effb 4102 dSP; dTARGET;
761237fe 4103 Pid_t childpid;
21e89b5f 4104#ifdef HAS_SIGPROCMASK
eb3d0a58
LT		 4105 sigset_t oldmask, newmask;
4106#endif
a0d0e21e
LW		 4107
4108 EXTEND(SP, 1);
45bc9206 4109 PERL_FLUSHALL_FOR_CHILD;
21e89b5f 4110#ifdef HAS_SIGPROCMASK
eb3d0a58
LT		 4111 sigfillset(&newmask);
4112 sigprocmask(SIG_SETMASK, &newmask, &oldmask);
4113#endif
52e18b1f 4114 childpid = PerlProc_fork();
eb3d0a58
LT		 4115 if (childpid == 0) {
4116 int sig;
4117 PL_sig_pending = 0;
4118 if (PL_psig_pend)
4119 for (sig = 1; sig < SIG_SIZE; sig++)
4120 PL_psig_pend[sig] = 0;
4121 }
21e89b5f 4122#ifdef HAS_SIGPROCMASK
eb3d0a58
LT		 4123 {
4124 dSAVE_ERRNO;
4125 sigprocmask(SIG_SETMASK, &oldmask, NULL);
4126 RESTORE_ERRNO;
4127 }
4128#endif
a0d0e21e 4129 if (childpid < 0)
af2fe5eb 4130 RETPUSHUNDEF;
a0d0e21e 4131 if (!childpid) {
ca0c25f6 4132#ifdef PERL_USES_PL_PIDSTATUS
3280af22 4133 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
ca0c25f6 4134#endif
a0d0e21e
LW		 4135 }
4136 PUSHi(childpid);
4137 RETURN;
4138#else
146174a9 4139# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4140 dSP; dTARGET;
146174a9
CB		 4141 Pid_t childpid;
4142
4143 EXTEND(SP, 1);
4144 PERL_FLUSHALL_FOR_CHILD;
4145 childpid = PerlProc_fork();
60fa28ff 4146 if (childpid == -1)
af2fe5eb 4147 RETPUSHUNDEF;
146174a9
CB		 4148 PUSHi(childpid);
4149 RETURN;
4150# else
0322a713 4151 DIE(aTHX_ PL_no_func, "fork");
146174a9 4152# endif
a0d0e21e
LW		 4153#endif
4154}
4155
4156PP(pp_wait)
4157{
e37778c2 4158#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
20b7effb 4159 dSP; dTARGET;
761237fe 4160 Pid_t childpid;
a0d0e21e 4161 int argflags;
a0d0e21e 4162
4ffa73a3
JH		 4163 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4164 childpid = wait4pid(-1, &argflags, 0);
4165 else {
4166 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4167 errno == EINTR) {
4168 PERL_ASYNC_CHECK();
4169 }
0a0ada86 4170 }
68a29c53
GS		 4171# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4172 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4173 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4174# else
2fbb330f 4175 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4176# endif
44a8e56a 4177 XPUSHi(childpid);
a0d0e21e
LW		 4178 RETURN;
4179#else
0322a713 4180 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4181#endif
4182}
4183
4184PP(pp_waitpid)
4185{
e37778c2 4186#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
20b7effb 4187 dSP; dTARGET;
0bcc34c2
AL		 4188 const int optype = POPi;
4189 const Pid_t pid = TOPi;
2ec0bfb3 4190 Pid_t result;
a0d0e21e 4191 int argflags;
a0d0e21e 4192
4ffa73a3 4193 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4194 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4195 else {
2ec0bfb3 4196 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4197 errno == EINTR) {
4198 PERL_ASYNC_CHECK();
4199 }
0a0ada86 4200 }
68a29c53
GS		 4201# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4202 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4203 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4204# else
2fbb330f 4205 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4206# endif
2ec0bfb3 4207 SETi(result);
a0d0e21e
LW		 4208 RETURN;
4209#else
0322a713 4210 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4211#endif
4212}
4213
4214PP(pp_system)
4215{
20b7effb 4216 dSP; dMARK; dORIGMARK; dTARGET;
9c12f1e5
RGS		 4217#if defined(__LIBCATAMOUNT__)
4218 PL_statusvalue = -1;
4219 SP = ORIGMARK;
4220 XPUSHi(-1);
4221#else
a0d0e21e 4222 I32 value;
76ffd3b9 4223 int result;
a0d0e21e 4224
284167a5 4225 if (TAINTING_get) {
bbd7eb8a
RD		 4226 TAINT_ENV();
4227 while (++MARK <= SP) {
10516c54 4228 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
284167a5 4229 if (TAINT_get)
bbd7eb8a
RD		 4230 break;
4231 }
4232 MARK = ORIGMARK;
5a445156 4233 TAINT_PROPER("system");
a0d0e21e 4234 }
45bc9206 4235 PERL_FLUSHALL_FOR_CHILD;
273b0206 4236#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4237 {
eb160463
GS		 4238 Pid_t childpid;
4239 int pp[2];
27da23d5 4240 I32 did_pipes = 0;
21e89b5f 4241#ifdef HAS_SIGPROCMASK
b1cf9e92
LT		 4242 sigset_t newset, oldset;
4243#endif
eb160463
GS		 4244
4245 if (PerlProc_pipe(pp) >= 0)
4246 did_pipes = 1;
21e89b5f 4247#ifdef HAS_SIGPROCMASK
b1cf9e92
LT		 4248 sigemptyset(&newset);
4249 sigaddset(&newset, SIGCHLD);
4250 sigprocmask(SIG_BLOCK, &newset, &oldset);
4251#endif
eb160463
GS		 4252 while ((childpid = PerlProc_fork()) == -1) {
4253 if (errno != EAGAIN) {
4254 value = -1;
4255 SP = ORIGMARK;
b59aed67 4256 XPUSHi(value);
eb160463
GS		 4257 if (did_pipes) {
4258 PerlLIO_close(pp[0]);
4259 PerlLIO_close(pp[1]);
4260 }
21e89b5f 4261#ifdef HAS_SIGPROCMASK
b1cf9e92
LT		 4262 sigprocmask(SIG_SETMASK, &oldset, NULL);
4263#endif
eb160463
GS		 4264 RETURN;
4265 }
4266 sleep(5);
4267 }
4268 if (childpid > 0) {
4269 Sigsave_t ihand,qhand; /* place to save signals during system() */
4270 int status;
4271
4272 if (did_pipes)
4273 PerlLIO_close(pp[1]);
64ca3a65 4274#ifndef PERL_MICRO
8aad04aa
JH		 4275 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4276 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4277#endif
eb160463
GS		 4278 do {
4279 result = wait4pid(childpid, &status, 0);
4280 } while (result == -1 && errno == EINTR);
64ca3a65 4281#ifndef PERL_MICRO
b1cf9e92
LT		 4282#ifdef HAS_SIGPROCMASK
4283 sigprocmask(SIG_SETMASK, &oldset, NULL);
4284#endif
eb160463
GS		 4285 (void)rsignal_restore(SIGINT, &ihand);
4286 (void)rsignal_restore(SIGQUIT, &qhand);
4287#endif
37038d91 4288 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4289 do_execfree(); /* free any memory child malloced on fork */
4290 SP = ORIGMARK;
4291 if (did_pipes) {
4292 int errkid;
bb7a0f54
MHM		 4293 unsigned n = 0;
4294 SSize_t n1;
eb160463
GS		 4295
4296 while (n < sizeof(int)) {
4297 n1 = PerlLIO_read(pp[0],
4298 (void*)(((char*)&errkid)+n),
4299 (sizeof(int)) - n);
4300 if (n1 <= 0)
4301 break;
4302 n += n1;
4303 }
4304 PerlLIO_close(pp[0]);
4305 if (n) { /* Error */
4306 if (n != sizeof(int))
5637ef5b 4307 DIE(aTHX_ "panic: kid popen errno read, n=%u", n);
eb160463 4308 errno = errkid; /* Propagate errno from kid */
37038d91 4309 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4310 }
4311 }
b59aed67 4312 XPUSHi(STATUS_CURRENT);
eb160463
GS		 4313 RETURN;
4314 }
21e89b5f 4315#ifdef HAS_SIGPROCMASK
b1cf9e92
LT		 4316 sigprocmask(SIG_SETMASK, &oldset, NULL);
4317#endif
eb160463
GS		 4318 if (did_pipes) {
4319 PerlLIO_close(pp[0]);
d5a9bfb0 4320#if defined(HAS_FCNTL) && defined(F_SETFD)
375ed12a
JH		 4321 if (fcntl(pp[1], F_SETFD, FD_CLOEXEC) < 0)
4322 RETPUSHUNDEF;
d5a9bfb0 4323#endif
eb160463 4324 }
e0a1f643 4325 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4326 SV * const really = *++MARK;
e0a1f643
JH		 4327 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4328 }
4329 else if (SP - MARK != 1)
a0714e2c 4330 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
e0a1f643 4331 else {
8c074e2a 4332 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4333 }
4334 PerlProc__exit(-1);
d5a9bfb0 4335 }
c3293030 4336#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4337 PL_statusvalue = 0;
4338 result = 0;
911d147d 4339 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4340 SV * const really = *++MARK;
9ec7171b 4341# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
54725af6
GS		 4342 value = (I32)do_aspawn(really, MARK, SP);
4343# else
c5be433b 4344 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4345# endif
a0d0e21e 4346 }
54725af6 4347 else if (SP - MARK != 1) {
9ec7171b 4348# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
a0714e2c 4349 value = (I32)do_aspawn(NULL, MARK, SP);
54725af6 4350# else
a0714e2c 4351 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
54725af6
GS		 4352# endif
4353 }
a0d0e21e 4354 else {
8c074e2a 4355 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4356 }
922b1888
GS		 4357 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4358 result = 1;
2fbb330f 4359 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4360 do_execfree();
4361 SP = ORIGMARK;
b59aed67 4362 XPUSHi(result ? value : STATUS_CURRENT);
9c12f1e5
RGS		 4363#endif /* !FORK or VMS or OS/2 */
4364#endif
a0d0e21e
LW		 4365 RETURN;
4366}
4367
4368PP(pp_exec)
4369{
20b7effb 4370 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4371 I32 value;
4372
284167a5 4373 if (TAINTING_get) {
bbd7eb8a
RD		 4374 TAINT_ENV();
4375 while (++MARK <= SP) {
10516c54 4376 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
284167a5 4377 if (TAINT_get)
bbd7eb8a
RD		 4378 break;
4379 }
4380 MARK = ORIGMARK;
5a445156 4381 TAINT_PROPER("exec");
bbd7eb8a 4382 }
45bc9206 4383 PERL_FLUSHALL_FOR_CHILD;
533c011a 4384 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4385 SV * const really = *++MARK;
a0d0e21e
LW		 4386 value = (I32)do_aexec(really, MARK, SP);
4387 }
4388 else if (SP - MARK != 1)
4389#ifdef VMS
a0714e2c 4390 value = (I32)vms_do_aexec(NULL, MARK, SP);
a0d0e21e 4391#else
a0714e2c 4392 value = (I32)do_aexec(NULL, MARK, SP);
a0d0e21e
LW		 4393#endif
4394 else {
a0d0e21e 4395#ifdef VMS
8c074e2a 4396 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4397#else
5dd60a52 4398 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e
LW		 4399#endif
4400 }
146174a9 4401
a0d0e21e 4402 SP = ORIGMARK;
b59aed67 4403 XPUSHi(value);
a0d0e21e
LW		 4404 RETURN;
4405}
4406
a0d0e21e
LW		 4407PP(pp_getppid)
4408{
4409#ifdef HAS_GETPPID
20b7effb 4410 dSP; dTARGET;
a0d0e21e
LW		 4411 XPUSHi( getppid() );
4412 RETURN;
4413#else
cea2e8a9 4414 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4415#endif
4416}
4417
4418PP(pp_getpgrp)
4419{
4420#ifdef HAS_GETPGRP
20b7effb 4421 dSP; dTARGET;
9853a804 4422 Pid_t pgrp;
8af20142
FC		 4423 const Pid_t pid =
4424 (MAXARG < 1) ? 0 : TOPs ? SvIVx(POPs) : ((void)POPs, 0);
a0d0e21e 4425
c3293030 4426#ifdef BSD_GETPGRP
9853a804 4427 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4428#else
146174a9 4429 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4430 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4431 pgrp = getpgrp();
a0d0e21e 4432#endif
9853a804 4433 XPUSHi(pgrp);
a0d0e21e
LW		 4434 RETURN;
4435#else
56a94ef2 4436 DIE(aTHX_ PL_no_func, "getpgrp");
a0d0e21e
LW		 4437#endif
4438}
4439
4440PP(pp_setpgrp)
4441{
4442#ifdef HAS_SETPGRP
20b7effb 4443 dSP; dTARGET;
d8a83dd3
JH		 4444 Pid_t pgrp;
4445 Pid_t pid;
92f2ac5f
FC		 4446 pgrp = MAXARG == 2 && (TOPs||POPs) ? POPi : 0;
4447 if (MAXARG > 0) pid = TOPs && TOPi;
4448 else {
a0d0e21e 4449 pid = 0;
1f200948 4450 XPUSHi(-1);
a0d0e21e 4451 }
a0d0e21e
LW		 4452
4453 TAINT_PROPER("setpgrp");
c3293030
IZ		 4454#ifdef BSD_SETPGRP
4455 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4456#else
146174a9
CB		 4457 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4458 || (pid != 0 && pid != PerlProc_getpid()))
4459 {
4460 DIE(aTHX_ "setpgrp can't take arguments");
4461 }
a0d0e21e
LW		 4462 SETi( setpgrp() >= 0 );
4463#endif /* USE_BSDPGRP */
4464 RETURN;
4465#else
56a94ef2 4466 DIE(aTHX_ PL_no_func, "setpgrp");
a0d0e21e
LW		 4467#endif
4468}
4469
8b079db6 4470#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (__GLIBC__ > 2))
5baa2e4f
RB		 4471# define PRIORITY_WHICH_T(which) (__priority_which_t)which
4472#else
4473# define PRIORITY_WHICH_T(which) which
4474#endif
4475
a0d0e21e
LW		 4476PP(pp_getpriority)
4477{
a0d0e21e 4478#ifdef HAS_GETPRIORITY
20b7effb 4479 dSP; dTARGET;
0bcc34c2
AL		 4480 const int who = POPi;
4481 const int which = TOPi;
5baa2e4f 4482 SETi( getpriority(PRIORITY_WHICH_T(which), who) );
a0d0e21e
LW		 4483 RETURN;
4484#else
56a94ef2 4485 DIE(aTHX_ PL_no_func, "getpriority");
a0d0e21e
LW		 4486#endif
4487}
4488
4489PP(pp_setpriority)
4490{
a0d0e21e 4491#ifdef HAS_SETPRIORITY
20b7effb 4492 dSP; dTARGET;
0bcc34c2
AL		 4493 const int niceval = POPi;
4494 const int who = POPi;
4495 const int which = TOPi;
a0d0e21e 4496 TAINT_PROPER("setpriority");
5baa2e4f 4497 SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 );
a0d0e21e
LW		 4498 RETURN;
4499#else
56a94ef2 4500 DIE(aTHX_ PL_no_func, "setpriority");
a0d0e21e
LW		 4501#endif
4502}
4503
5baa2e4f
RB		 4504#undef PRIORITY_WHICH_T
4505
a0d0e21e
LW		 4506/* Time calls. */
4507
4508PP(pp_time)
4509{
20b7effb 4510 dSP; dTARGET;
cbdc8872 4511#ifdef BIG_TIME
4608196e 4512 XPUSHn( time(NULL) );
cbdc8872 4513#else
4608196e 4514 XPUSHi( time(NULL) );
cbdc8872 4515#endif
a0d0e21e
LW		 4516 RETURN;
4517}
4518
a0d0e21e
LW		 4519PP(pp_tms)
4520{
9cad6237 4521#ifdef HAS_TIMES
39644a26 4522 dSP;
25983af4 4523 struct tms timesbuf;
a0d0e21e 4524
25983af4
NC		 4525 EXTEND(SP, 4);
4526 (void)PerlProc_times(&timesbuf);
4527
4528 mPUSHn(((NV)timesbuf.tms_utime)/(NV)PL_clocktick);
a0d0e21e 4529 if (GIMME == G_ARRAY) {
25983af4
NC		 4530 mPUSHn(((NV)timesbuf.tms_stime)/(NV)PL_clocktick);
4531 mPUSHn(((NV)timesbuf.tms_cutime)/(NV)PL_clocktick);
4532 mPUSHn(((NV)timesbuf.tms_cstime)/(NV)PL_clocktick);
a0d0e21e
LW		 4533 }
4534 RETURN;
9cad6237 4535#else
2f42fcb0
JH		 4536# ifdef PERL_MICRO
4537 dSP;
6e449a3a 4538 mPUSHn(0.0);
2f42fcb0
JH		 4539 EXTEND(SP, 4);
4540 if (GIMME == G_ARRAY) {
6e449a3a
MHM		 4541 mPUSHn(0.0);
4542 mPUSHn(0.0);
4543 mPUSHn(0.0);
2f42fcb0
JH		 4544 }
4545 RETURN;
4546# else
9cad6237 4547 DIE(aTHX_ "times not implemented");
2f42fcb0 4548# endif
55497cff 4549#endif /* HAS_TIMES */
a0d0e21e
LW		 4550}
4551
fc003d4b
MS		 4552/* The 32 bit int year limits the times we can represent to these
4553 boundaries with a few days wiggle room to account for time zone
4554 offsets
4555*/
4556/* Sat Jan 3 00:00:00 -2147481748 */
4557#define TIME_LOWER_BOUND -67768100567755200.0
4558/* Sun Dec 29 12:00:00 2147483647 */
4559#define TIME_UPPER_BOUND 67767976233316800.0
4560
b1c05ba5
DM		 4561
4562/* also used for: pp_localtime() */
4563
a0d0e21e
LW		 4564PP(pp_gmtime)
4565{
39644a26 4566 dSP;
a272e669 4567 Time64_T when;
806a119a
MS		 4568 struct TM tmbuf;
4569 struct TM *err;
a8cb0261 4570 const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime";
27da23d5
JH		 4571 static const char * const dayname[] =
4572 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4573 static const char * const monname[] =
4574 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4575 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e 4576
0163043a 4577 if (MAXARG < 1 || (!TOPs && ((void)POPs, 1))) {
a272e669
MS		 4578 time_t now;
4579 (void)time(&now);
4580 when = (Time64_T)now;
4581 }
7315c673 4582 else {
7eb4f9b7 4583 NV input = Perl_floor(POPn);
8efababc 4584 when = (Time64_T)input;
659c4b96 4585 if (when != input) {
dcbac5bb 4586 /* diag_listed_as: gmtime(%f) too large */
a2a5de95 4587 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4588 "%s(%.0" NVff ") too large", opname, input);
7315c673
MS		 4589 }
4590 }
a0d0e21e 4591
fc003d4b 4592 if ( TIME_LOWER_BOUND > when ) {
dcbac5bb 4593 /* diag_listed_as: gmtime(%f) too small */
fc003d4b 4594 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4595 "%s(%.0" NVff ") too small", opname, when);
fc003d4b
MS		 4596 err = NULL;
4597 }
4598 else if( when > TIME_UPPER_BOUND ) {
dcbac5bb 4599 /* diag_listed_as: gmtime(%f) too small */
fc003d4b 4600 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4601 "%s(%.0" NVff ") too large", opname, when);
fc003d4b
MS		 4602 err = NULL;
4603 }
4604 else {
4605 if (PL_op->op_type == OP_LOCALTIME)
4606 err = S_localtime64_r(&when, &tmbuf);
4607 else
4608 err = S_gmtime64_r(&when, &tmbuf);
4609 }
a0d0e21e 4610
a2a5de95 4611 if (err == NULL) {
b35b96b6 4612 /* diag_listed_as: gmtime(%f) failed */
8efababc 4613 /* XXX %lld broken for quads */
a2a5de95 4614 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4615 "%s(%.0" NVff ") failed", opname, when);
5b6366c2 4616 }
a0d0e21e 4617
a272e669 4618 if (GIMME != G_ARRAY) { /* scalar context */
9a5ff6d9
AB		 4619 EXTEND(SP, 1);
4620 EXTEND_MORTAL(1);
a272e669 4621 if (err == NULL)
a0d0e21e 4622 RETPUSHUNDEF;
b35b96b6 4623 else {
8e3e9c6c 4624 mPUSHs(Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %"IVdf,
b35b96b6
JH		 4625 dayname[tmbuf.tm_wday],
4626 monname[tmbuf.tm_mon],
4627 tmbuf.tm_mday,
4628 tmbuf.tm_hour,
4629 tmbuf.tm_min,
4630 tmbuf.tm_sec,
8e3e9c6c 4631 (IV)tmbuf.tm_year + 1900));
b35b96b6 4632 }
a0d0e21e 4633 }
a272e669
MS		 4634 else { /* list context */
4635 if ( err == NULL )
4636 RETURN;
4637
9a5ff6d9
AB		 4638 EXTEND(SP, 9);
4639 EXTEND_MORTAL(9);
a272e669
MS		 4640 mPUSHi(tmbuf.tm_sec);
4641 mPUSHi(tmbuf.tm_min);
4642 mPUSHi(tmbuf.tm_hour);
4643 mPUSHi(tmbuf.tm_mday);
4644 mPUSHi(tmbuf.tm_mon);
7315c673 4645 mPUSHn(tmbuf.tm_year);
a272e669
MS		 4646 mPUSHi(tmbuf.tm_wday);
4647 mPUSHi(tmbuf.tm_yday);
4648 mPUSHi(tmbuf.tm_isdst);
a0d0e21e
LW		 4649 }
4650 RETURN;
4651}
4652
4653PP(pp_alarm)
4654{
9cad6237 4655#ifdef HAS_ALARM
20b7effb 4656 dSP; dTARGET;
a0d0e21e 4657 int anum;
a0d0e21e
LW		 4658 anum = POPi;
4659 anum = alarm((unsigned int)anum);
a0d0e21e
LW		 4660 if (anum < 0)
4661 RETPUSHUNDEF;
c6419e06 4662 PUSHi(anum);
a0d0e21e
LW		 4663 RETURN;
4664#else
0322a713 4665 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4666#endif
4667}
4668
4669PP(pp_sleep)
4670{
20b7effb 4671 dSP; dTARGET;
a0d0e21e
LW		 4672 I32 duration;
4673 Time_t lasttime;
4674 Time_t when;
4675
4676 (void)time(&lasttime);
0da4a804 4677 if (MAXARG < 1 || (!TOPs && !POPs))
76e3520e 4678 PerlProc_pause();
a0d0e21e
LW		 4679 else {
4680 duration = POPi;
76e3520e 4681 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4682 }
4683 (void)time(&when);
4684 XPUSHi(when - lasttime);
4685 RETURN;
4686}
4687
4688/* Shared memory. */
c9f7ac20 4689/* Merged with some message passing. */
a0d0e21e 4690
b1c05ba5
DM		 4691/* also used for: pp_msgrcv() pp_msgsnd() pp_semop() pp_shmread() */
4692
a0d0e21e
LW		 4693PP(pp_shmwrite)
4694{
4695#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
20b7effb 4696 dSP; dMARK; dTARGET;
c9f7ac20
NC		 4697 const int op_type = PL_op->op_type;
4698 I32 value;
a0d0e21e 4699
c9f7ac20
NC		 4700 switch (op_type) {
4701 case OP_MSGSND:
4702 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4703 break;
4704 case OP_MSGRCV:
4705 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4706 break;
ca563b4e
NC		 4707 case OP_SEMOP:
4708 value = (I32)(do_semop(MARK, SP) >= 0);
4709 break;
c9f7ac20
NC		 4710 default:
4711 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4712 break;
4713 }
a0d0e21e 4714
a0d0e21e
LW		 4715 SP = MARK;
4716 PUSHi(value);
4717 RETURN;
4718#else
897d3989 4719 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4720#endif
4721}
4722
4723/* Semaphores. */
4724
b1c05ba5
DM		 4725/* also used for: pp_msgget() pp_shmget() */
4726
a0d0e21e
LW		 4727PP(pp_semget)
4728{
4729#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
20b7effb 4730 dSP; dMARK; dTARGET;
0bcc34c2 4731 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4732 SP = MARK;
4733 if (anum == -1)
4734 RETPUSHUNDEF;
4735 PUSHi(anum);
4736 RETURN;
4737#else
cea2e8a9 4738 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4739#endif
4740}
4741
b1c05ba5
DM		 4742/* also used for: pp_msgctl() pp_shmctl() */
4743
a0d0e21e
LW		 4744PP(pp_semctl)
4745{
4746#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
20b7effb 4747 dSP; dMARK; dTARGET;
0bcc34c2 4748 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4749 SP = MARK;
4750 if (anum == -1)
4751 RETSETUNDEF;
4752 if (anum != 0) {
4753 PUSHi(anum);
4754 }
4755 else {
8903cb82 4756 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4757 }
4758 RETURN;
4759#else
897d3989 4760 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4761#endif
4762}
4763
5cdc4e88
NC		 4764/* I can't const this further without getting warnings about the types of
4765 various arrays passed in from structures. */
4766static SV *
4767S_space_join_names_mortal(pTHX_ char *const *array)
4768{
7c58897d 4769 SV *target;
5cdc4e88 4770
7918f24d
NC		 4771 PERL_ARGS_ASSERT_SPACE_JOIN_NAMES_MORTAL;
4772
5cdc4e88 4773 if (array && *array) {
84bafc02 4774 target = newSVpvs_flags("", SVs_TEMP);
5cdc4e88
NC		 4775 while (1) {
4776 sv_catpv(target, *array);
4777 if (!*++array)
4778 break;
4779 sv_catpvs(target, " ");
4780 }
7c58897d
NC		 4781 } else {
4782 target = sv_mortalcopy(&PL_sv_no);
5cdc4e88
NC		 4783 }
4784 return target;
4785}
4786
a0d0e21e
LW		 4787/* Get system info. */
4788
b1c05ba5
DM		 4789/* also used for: pp_ghbyaddr() pp_ghbyname() */
4790
a0d0e21e
LW		 4791PP(pp_ghostent)
4792{
693762b4 4793#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
20b7effb 4794 dSP;
533c011a 4795 I32 which = PL_op->op_type;
eb578fdb
KW		 4796 char **elem;
4797 SV *sv;
dc45a647 4798#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4799 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4800 struct hostent *gethostbyname(Netdb_name_t);
4801 struct hostent *gethostent(void);
a0d0e21e 4802#endif
07822e36 4803 struct hostent *hent = NULL;
a0d0e21e
LW		 4804 unsigned long len;
4805
4806 EXTEND(SP, 10);
edd309b7 4807 if (which == OP_GHBYNAME) {
dc45a647 4808#ifdef HAS_GETHOSTBYNAME
0bcc34c2 4809 const char* const name = POPpbytex;
edd309b7 4810 hent = PerlSock_gethostbyname(name);
dc45a647 4811#else
cea2e8a9 4812 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4813#endif
edd309b7 4814 }
a0d0e21e 4815 else if (which == OP_GHBYADDR) {
dc45a647 4816#ifdef HAS_GETHOSTBYADDR
0bcc34c2
AL		 4817 const int addrtype = POPi;
4818 SV * const addrsv = POPs;
a0d0e21e 4819 STRLEN addrlen;
48fc4736 4820 const char *addr = (char *)SvPVbyte(addrsv, addrlen);
a0d0e21e 4821
48fc4736 4822 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4823#else
cea2e8a9 4824 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4825#endif
a0d0e21e
LW		 4826 }
4827 else
4828#ifdef HAS_GETHOSTENT
6ad3d225 4829 hent = PerlSock_gethostent();
a0d0e21e 4830#else
cea2e8a9 4831 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4832#endif
4833
4834#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4835 if (!hent) {
4836#ifdef USE_REENTRANT_API
4837# ifdef USE_GETHOSTENT_ERRNO
4838 h_errno = PL_reentrant_buffer->_gethostent_errno;
4839# endif
4840#endif
37038d91 4841 STATUS_UNIX_SET(h_errno);
10bc17b6 4842 }
a0d0e21e
LW		 4843#endif
4844
4845 if (GIMME != G_ARRAY) {
4846 PUSHs(sv = sv_newmortal());
4847 if (hent) {
4848 if (which == OP_GHBYNAME) {
fd0af264 4849 if (hent->h_addr)
4850 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4851 }
4852 else
4853 sv_setpv(sv, (char*)hent->h_name);
4854 }
4855 RETURN;
4856 }
4857
4858 if (hent) {
6e449a3a 4859 mPUSHs(newSVpv((char*)hent->h_name, 0));
931e0695 4860 PUSHs(space_join_names_mortal(hent->h_aliases));
6e449a3a 4861 mPUSHi(hent->h_addrtype);
a0d0e21e 4862 len = hent->h_length;
6e449a3a 4863 mPUSHi(len);
a0d0e21e
LW		 4864#ifdef h_addr
4865 for (elem = hent->h_addr_list; elem && *elem; elem++) {
6e449a3a 4866 mXPUSHp(*elem, len);
a0d0e21e
LW		 4867 }
4868#else
fd0af264 4869 if (hent->h_addr)
22f1178f 4870 mPUSHp(hent->h_addr, len);
7c58897d
NC		 4871 else
4872 PUSHs(sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4873#endif /* h_addr */
4874 }
4875 RETURN;
4876#else
7844cc62 4877 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4878#endif
4879}
4880
b1c05ba5
DM		 4881/* also used for: pp_gnbyaddr() pp_gnbyname() */
4882
a0d0e21e
LW		 4883PP(pp_gnetent)
4884{
693762b4 4885#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
20b7effb 4886 dSP;
533c011a 4887 I32 which = PL_op->op_type;
eb578fdb 4888 SV *sv;
dc45a647 4889#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4890 struct netent *getnetbyaddr(Netdb_net_t, int);
4891 struct netent *getnetbyname(Netdb_name_t);
4892 struct netent *getnetent(void);
8ac85365 4893#endif
a0d0e21e
LW		 4894 struct netent *nent;
4895
edd309b7 4896 if (which == OP_GNBYNAME){
dc45a647 4897#ifdef HAS_GETNETBYNAME
0bcc34c2 4898 const char * const name = POPpbytex;
edd309b7 4899 nent = PerlSock_getnetbyname(name);
dc45a647 4900#else
cea2e8a9 4901 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4902#endif
edd309b7 4903 }
a0d0e21e 4904 else if (which == OP_GNBYADDR) {
dc45a647 4905#ifdef HAS_GETNETBYADDR
0bcc34c2
AL		 4906 const int addrtype = POPi;
4907 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4908 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4909#else
cea2e8a9 4910 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4911#endif
a0d0e21e
LW		 4912 }
4913 else
dc45a647 4914#ifdef HAS_GETNETENT
76e3520e 4915 nent = PerlSock_getnetent();
dc45a647 4916#else
cea2e8a9 4917 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4918#endif
a0d0e21e 4919
10bc17b6
JH		 4920#ifdef HOST_NOT_FOUND
4921 if (!nent) {
4922#ifdef USE_REENTRANT_API
4923# ifdef USE_GETNETENT_ERRNO
4924 h_errno = PL_reentrant_buffer->_getnetent_errno;
4925# endif
4926#endif
37038d91 4927 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4928 }
4929#endif
4930
a0d0e21e
LW		 4931 EXTEND(SP, 4);
4932 if (GIMME != G_ARRAY) {
4933 PUSHs(sv = sv_newmortal());
4934 if (nent) {
4935 if (which == OP_GNBYNAME)
1e422769 4936 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4937 else
4938 sv_setpv(sv, nent->n_name);
4939 }
4940 RETURN;
4941 }
4942
4943 if (nent) {
6e449a3a 4944 mPUSHs(newSVpv(nent->n_name, 0));
931e0695 4945 PUSHs(space_join_names_mortal(nent->n_aliases));
6e449a3a
MHM		 4946 mPUSHi(nent->n_addrtype);
4947 mPUSHi(nent->n_net);
a0d0e21e
LW		 4948 }
4949
4950 RETURN;
4951#else
7844cc62 4952 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4953#endif
4954}
4955
b1c05ba5
DM		 4956
4957/* also used for: pp_gpbyname() pp_gpbynumber() */
4958
a0d0e21e
LW		 4959PP(pp_gprotoent)
4960{
693762b4 4961#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
20b7effb 4962 dSP;
533c011a 4963 I32 which = PL_op->op_type;
eb578fdb 4964 SV *sv;
dc45a647 4965#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4966 struct protoent *getprotobyname(Netdb_name_t);
4967 struct protoent *getprotobynumber(int);
4968 struct protoent *getprotoent(void);
8ac85365 4969#endif
a0d0e21e
LW		 4970 struct protoent *pent;
4971
edd309b7 4972 if (which == OP_GPBYNAME) {
e5c9fcd0 4973#ifdef HAS_GETPROTOBYNAME
0bcc34c2 4974 const char* const name = POPpbytex;
edd309b7 4975 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4976#else
cea2e8a9 4977 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4978#endif
edd309b7
JH		 4979 }
4980 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4981#ifdef HAS_GETPROTOBYNUMBER
0bcc34c2 4982 const int number = POPi;
edd309b7 4983 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4984#else
edd309b7 4985 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4986#endif
edd309b7 4987 }
a0d0e21e 4988 else
e5c9fcd0 4989#ifdef HAS_GETPROTOENT
6ad3d225 4990 pent = PerlSock_getprotoent();
e5c9fcd0 4991#else
cea2e8a9 4992 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4993#endif
a0d0e21e
LW		 4994
4995 EXTEND(SP, 3);
4996 if (GIMME != G_ARRAY) {
4997 PUSHs(sv = sv_newmortal());
4998 if (pent) {
4999 if (which == OP_GPBYNAME)
1e422769 5000 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5001 else
5002 sv_setpv(sv, pent->p_name);
5003 }
5004 RETURN;
5005 }
5006
5007 if (pent) {
6e449a3a 5008 mPUSHs(newSVpv(pent->p_name, 0));
931e0695 5009 PUSHs(space_join_names_mortal(pent->p_aliases));
6e449a3a 5010 mPUSHi(pent->p_proto);
a0d0e21e
LW		 5011 }
5012
5013 RETURN;
5014#else
7844cc62 5015 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5016#endif
5017}
5018
b1c05ba5
DM		 5019
5020/* also used for: pp_gsbyname() pp_gsbyport() */
5021
a0d0e21e
LW		 5022PP(pp_gservent)
5023{
693762b4 5024#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
20b7effb 5025 dSP;
533c011a 5026 I32 which = PL_op->op_type;
eb578fdb 5027 SV *sv;
dc45a647 5028#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5029 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5030 struct servent *getservbyport(int, Netdb_name_t);
5031 struct servent *getservent(void);
8ac85365 5032#endif
a0d0e21e
LW		 5033 struct servent *sent;
5034
5035 if (which == OP_GSBYNAME) {
dc45a647 5036#ifdef HAS_GETSERVBYNAME
0bcc34c2
AL		 5037 const char * const proto = POPpbytex;
5038 const char * const name = POPpbytex;
bd61b366 5039 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
dc45a647 5040#else
cea2e8a9 5041 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5042#endif
a0d0e21e
LW		 5043 }
5044 else if (which == OP_GSBYPORT) {
dc45a647 5045#ifdef HAS_GETSERVBYPORT
0bcc34c2 5046 const char * const proto = POPpbytex;
eb160463 5047 unsigned short port = (unsigned short)POPu;
6ad3d225 5048 port = PerlSock_htons(port);
bd61b366 5049 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
dc45a647 5050#else
cea2e8a9 5051 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5052#endif
a0d0e21e
LW		 5053 }
5054 else
e5c9fcd0 5055#ifdef HAS_GETSERVENT
6ad3d225 5056 sent = PerlSock_getservent();
e5c9fcd0 5057#else
cea2e8a9 5058 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5059#endif
a0d0e21e
LW		 5060
5061 EXTEND(SP, 4);
5062 if (GIMME != G_ARRAY) {
5063 PUSHs(sv = sv_newmortal());
5064 if (sent) {
5065 if (which == OP_GSBYNAME) {
6ad3d225 5066 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e
LW		 5067 }
5068 else
5069 sv_setpv(sv, sent->s_name);
5070 }
5071 RETURN;
5072 }
5073
5074 if (sent) {
6e449a3a 5075 mPUSHs(newSVpv(sent->s_name, 0));
931e0695 5076 PUSHs(space_join_names_mortal(sent->s_aliases));
6e449a3a 5077 mPUSHi(PerlSock_ntohs(sent->s_port));
6e449a3a 5078 mPUSHs(newSVpv(sent->s_proto, 0));
a0d0e21e
LW		 5079 }
5080
5081 RETURN;
5082#else
7844cc62 5083 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5084#endif
5085}
5086
b1c05ba5
DM		 5087
5088/* also used for: pp_snetent() pp_sprotoent() pp_sservent() */
5089
a0d0e21e
LW		 5090PP(pp_shostent)
5091{
20b7effb 5092 dSP;
396166e1
NC		 5093 const int stayopen = TOPi;
5094 switch(PL_op->op_type) {
5095 case OP_SHOSTENT:
5096#ifdef HAS_SETHOSTENT
5097 PerlSock_sethostent(stayopen);
a0d0e21e 5098#else
396166e1 5099 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5100#endif
396166e1 5101 break;
693762b4 5102#ifdef HAS_SETNETENT
396166e1
NC		 5103 case OP_SNETENT:
5104 PerlSock_setnetent(stayopen);
a0d0e21e 5105#else
396166e1 5106 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5107#endif
396166e1
NC		 5108 break;
5109 case OP_SPROTOENT:
693762b4 5110#ifdef HAS_SETPROTOENT
396166e1 5111 PerlSock_setprotoent(stayopen);
a0d0e21e 5112#else
396166e1 5113 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5114#endif
396166e1
NC		 5115 break;
5116 case OP_SSERVENT:
693762b4 5117#ifdef HAS_SETSERVENT
396166e1 5118 PerlSock_setservent(stayopen);
a0d0e21e 5119#else
396166e1 5120 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5121#endif
396166e1
NC		 5122 break;
5123 }
5124 RETSETYES;
a0d0e21e
LW		 5125}
5126
b1c05ba5
DM		 5127
5128/* also used for: pp_egrent() pp_enetent() pp_eprotoent() pp_epwent()
5129 * pp_eservent() pp_sgrent() pp_spwent() */
5130
a0d0e21e
LW		 5131PP(pp_ehostent)
5132{
20b7effb 5133 dSP;
d8ef1fcd
NC		 5134 switch(PL_op->op_type) {
5135 case OP_EHOSTENT:
5136#ifdef HAS_ENDHOSTENT
5137 PerlSock_endhostent();
a0d0e21e 5138#else
d8ef1fcd 5139 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5140#endif
d8ef1fcd
NC		 5141 break;
5142 case OP_ENETENT:
693762b4 5143#ifdef HAS_ENDNETENT
d8ef1fcd 5144 PerlSock_endnetent();
a0d0e21e 5145#else
d8ef1fcd 5146 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5147#endif
d8ef1fcd
NC		 5148 break;
5149 case OP_EPROTOENT:
693762b4 5150#ifdef HAS_ENDPROTOENT
d8ef1fcd 5151 PerlSock_endprotoent();
a0d0e21e 5152#else
d8ef1fcd 5153 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5154#endif
d8ef1fcd
NC		 5155 break;
5156 case OP_ESERVENT:
693762b4 5157#ifdef HAS_ENDSERVENT
d8ef1fcd 5158 PerlSock_endservent();
a0d0e21e 5159#else
d8ef1fcd 5160 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5161#endif
d8ef1fcd 5162 break;
720d5dbf
NC		 5163 case OP_SGRENT:
5164#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5165 setgrent();
5166#else
5167 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5168#endif
5169 break;
5170 case OP_EGRENT:
5171#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5172 endgrent();
5173#else
5174 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5175#endif
5176 break;
5177 case OP_SPWENT:
5178#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5179 setpwent();
5180#else
5181 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5182#endif
5183 break;
5184 case OP_EPWENT:
5185#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5186 endpwent();
5187#else
5188 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5189#endif
5190 break;
d8ef1fcd
NC		 5191 }
5192 EXTEND(SP,1);
5193 RETPUSHYES;
a0d0e21e
LW		 5194}
5195
b1c05ba5
DM		 5196
5197/* also used for: pp_gpwnam() pp_gpwuid() */
5198
a0d0e21e
LW		 5199PP(pp_gpwent)
5200{
0994c4d0 5201#ifdef HAS_PASSWD
20b7effb 5202 dSP;
533c011a 5203 I32 which = PL_op->op_type;
eb578fdb 5204 SV *sv;
e3aefe8d 5205 struct passwd *pwent = NULL;
301e8125 5206 /*
bcf53261
JH		 5207 * We currently support only the SysV getsp* shadow password interface.
5208 * The interface is declared in <shadow.h> and often one needs to link
5209 * with -lsecurity or some such.
5210 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5211 * (and SCO?)
5212 *
5213 * AIX getpwnam() is clever enough to return the encrypted password
5214 * only if the caller (euid?) is root.
5215 *
e549f1c5 5216 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5217 * seem to contain more than one interface for accessing the shadow
5218 * password databases, possibly for compatibility reasons.
3813c136 5219 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5220 * are much more complicated, but also very similar to each other.
5221 *
5222 * <sys/types.h>
5223 * <sys/security.h>
5224 * <prot.h>
5225 * struct pr_passwd *getprpw*();
5226 * The password is in
3813c136
JH		 5227 * char getprpw*(...).ufld.fd_encrypt[]
5228 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5229 *
5230 * <sys/types.h>
5231 * <sys/security.h>
5232 * <prot.h>
5233 * struct es_passwd *getespw*();
5234 * The password is in
5235 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5236 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5237 *
e1920a95 5238 * <userpw.h> (AIX)
e549f1c5
JH		 5239 * struct userpw *getuserpw();
5240 * The password is in
5241 * char *(getuserpw(...)).spw_upw_passwd
5242 * (but the de facto standard getpwnam() should work okay)
5243 *
3813c136 5244 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5245 *
5246 * In HP-UX for getprpw*() the manual page claims that one should include
5247 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5248 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5249 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5250 *
5251 * Note that <sys/security.h> is already probed for, but currently
5252 * it is only included in special cases.
301e8125 5253 *
bcf53261
JH		 5254 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5255 * be preferred interface, even though also the getprpw*() interface
5256 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5257 * One also needs to call set_auth_parameters() in main() before
5258 * doing anything else, whether one is using getespw*() or getprpw*().
5259 *
5260 * Note that accessing the shadow databases can be magnitudes
5261 * slower than accessing the standard databases.
bcf53261
JH		 5262 *
5263 * --jhi
5264 */
a0d0e21e 5265
9e5f0c48
JH		 5266# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5267 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5268 * the pw_comment is left uninitialized. */
5269 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5270# endif
5271
e3aefe8d
JH		 5272 switch (which) {
5273 case OP_GPWNAM:
edd309b7 5274 {
0bcc34c2 5275 const char* const name = POPpbytex;
edd309b7
JH		 5276 pwent = getpwnam(name);
5277 }
5278 break;
e3aefe8d 5279 case OP_GPWUID:
edd309b7
JH		 5280 {
5281 Uid_t uid = POPi;
5282 pwent = getpwuid(uid);
5283 }
e3aefe8d
JH		 5284 break;
5285 case OP_GPWENT:
1883634f 5286# ifdef HAS_GETPWENT
e3aefe8d 5287 pwent = getpwent();
faea9016
IRC		 5288#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5289 if (pwent) pwent = getpwnam(pwent->pw_name);
5290#endif
1883634f 5291# else
a45d1c96 5292 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5293# endif
e3aefe8d
JH		 5294 break;
5295 }
8c0bfa08 5296
a0d0e21e
LW		 5297 EXTEND(SP, 10);
5298 if (GIMME != G_ARRAY) {
5299 PUSHs(sv = sv_newmortal());
5300 if (pwent) {
5301 if (which == OP_GPWNAM)
dfff4baf 5302 sv_setuid(sv, pwent->pw_uid);
a0d0e21e
LW		 5303 else
5304 sv_setpv(sv, pwent->pw_name);
5305 }
5306 RETURN;
5307 }
5308
5309 if (pwent) {
6e449a3a 5310 mPUSHs(newSVpv(pwent->pw_name, 0));
6ee623d5 5311
6e449a3a
MHM		 5312 sv = newSViv(0);
5313 mPUSHs(sv);
3813c136
JH		 5314 /* If we have getspnam(), we try to dig up the shadow
5315 * password. If we are underprivileged, the shadow
5316 * interface will set the errno to EACCES or similar,
5317 * and return a null pointer. If this happens, we will
5318 * use the dummy password (usually "*" or "x") from the
5319 * standard password database.
5320 *
5321 * In theory we could skip the shadow call completely
5322 * if euid != 0 but in practice we cannot know which
5323 * security measures are guarding the shadow databases
5324 * on a random platform.
5325 *
5326 * Resist the urge to use additional shadow interfaces.
5327 * Divert the urge to writing an extension instead.
5328 *
5329 * --jhi */
e549f1c5
JH		 5330 /* Some AIX setups falsely(?) detect some getspnam(), which
5331 * has a different API than the Solaris/IRIX one. */
5332# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136 5333 {
4ee39169 5334 dSAVE_ERRNO;
0bcc34c2
AL		 5335 const struct spwd * const spwent = getspnam(pwent->pw_name);
5336 /* Save and restore errno so that
3813c136 5337 * underprivileged attempts seem
486ec47a 5338 * to have never made the unsuccessful
3813c136 5339 * attempt to retrieve the shadow password. */
4ee39169 5340 RESTORE_ERRNO;
3813c136
JH		 5341 if (spwent && spwent->sp_pwdp)
5342 sv_setpv(sv, spwent->sp_pwdp);
5343 }
f1066039 5344# endif
e020c87d 5345# ifdef PWPASSWD
3813c136
JH		 5346 if (!SvPOK(sv)) /* Use the standard password, then. */
5347 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5348# endif
3813c136 5349
3813c136
JH		 5350 /* passwd is tainted because user himself can diddle with it.
5351 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5352 SvTAINTED_on(sv);
6ee623d5 5353
dfff4baf
BF		 5354 sv_setuid(PUSHmortal, pwent->pw_uid);
5355 sv_setgid(PUSHmortal, pwent->pw_gid);
6ee623d5 5356
3813c136
JH		 5357 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5358 * because of the poor interface of the Perl getpw*(),
5359 * not because there's some standard/convention saying so.
5360 * A better interface would have been to return a hash,
5361 * but we are accursed by our history, alas. --jhi. */
1883634f 5362# ifdef PWCHANGE
6e449a3a 5363 mPUSHi(pwent->pw_change);
6ee623d5 5364# else
1883634f 5365# ifdef PWQUOTA
6e449a3a 5366 mPUSHi(pwent->pw_quota);
1883634f 5367# else
a1757be1 5368# ifdef PWAGE
6e449a3a 5369 mPUSHs(newSVpv(pwent->pw_age, 0));
7c58897d
NC		 5370# else
5371 /* I think that you can never get this compiled, but just in case. */
5372 PUSHs(sv_mortalcopy(&PL_sv_no));
a1757be1 5373# endif
6ee623d5
GS		 5374# endif
5375# endif
6ee623d5 5376
3813c136
JH		 5377 /* pw_class and pw_comment are mutually exclusive--.
5378 * see the above note for pw_change, pw_quota, and pw_age. */
1883634f 5379# ifdef PWCLASS
6e449a3a 5380 mPUSHs(newSVpv(pwent->pw_class, 0));
1883634f
JH		 5381# else
5382# ifdef PWCOMMENT
6e449a3a 5383 mPUSHs(newSVpv(pwent->pw_comment, 0));
7c58897d
NC		 5384# else
5385 /* I think that you can never get this compiled, but just in case. */
5386 PUSHs(sv_mortalcopy(&PL_sv_no));
1883634f 5387# endif
6ee623d5 5388# endif
6ee623d5 5389
1883634f 5390# ifdef PWGECOS
7c58897d
NC		 5391 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5392# else
c4c533cb 5393 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5394# endif
d2719217 5395 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5396 SvTAINTED_on(sv);
6ee623d5 5397
6e449a3a 5398 mPUSHs(newSVpv(pwent->pw_dir, 0));
6ee623d5 5399
7c58897d 5400 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
4602f195
JH		 5401 /* pw_shell is tainted because user himself can diddle with it. */
5402 SvTAINTED_on(sv);
6ee623d5 5403
1883634f 5404# ifdef PWEXPIRE
6e449a3a 5405 mPUSHi(pwent->pw_expire);
1883634f 5406# endif
a0d0e21e
LW		 5407 }
5408 RETURN;
5409#else
af51a00e 5410 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5411#endif
5412}
5413
b1c05ba5
DM		 5414
5415/* also used for: pp_ggrgid() pp_ggrnam() */
5416
a0d0e21e
LW		 5417PP(pp_ggrent)
5418{
0994c4d0 5419#ifdef HAS_GROUP
20b7effb 5420 dSP;
6136c704
AL		 5421 const I32 which = PL_op->op_type;
5422 const struct group *grent;
a0d0e21e 5423
edd309b7 5424 if (which == OP_GGRNAM) {
0bcc34c2 5425 const char* const name = POPpbytex;
6136c704 5426 grent = (const struct group *)getgrnam(name);
edd309b7
JH		 5427 }
5428 else if (which == OP_GGRGID) {
0bcc34c2 5429 const Gid_t gid = POPi;
6136c704 5430 grent = (const struct group *)getgrgid(gid);
edd309b7 5431 }
a0d0e21e 5432 else
0994c4d0 5433#ifdef HAS_GETGRENT
a0d0e21e 5434 grent = (struct group *)getgrent();
0994c4d0
JH		 5435#else
5436 DIE(aTHX_ PL_no_func, "getgrent");
5437#endif
a0d0e21e
LW		 5438
5439 EXTEND(SP, 4);
5440 if (GIMME != G_ARRAY) {
6136c704
AL		 5441 SV * const sv = sv_newmortal();
5442
5443 PUSHs(sv);
a0d0e21e
LW		 5444 if (grent) {
5445 if (which == OP_GGRNAM)
dfff4baf 5446 sv_setgid(sv, grent->gr_gid);
a0d0e21e
LW		 5447 else
5448 sv_setpv(sv, grent->gr_name);
5449 }
5450 RETURN;
5451 }
5452
5453 if (grent) {
6e449a3a 5454 mPUSHs(newSVpv(grent->gr_name, 0));
28e8609d 5455
28e8609d 5456#ifdef GRPASSWD
6e449a3a 5457 mPUSHs(newSVpv(grent->gr_passwd, 0));
7c58897d
NC		 5458#else
5459 PUSHs(sv_mortalcopy(&PL_sv_no));
28e8609d
JH		 5460#endif
5461
dfff4baf 5462 sv_setgid(PUSHmortal, grent->gr_gid);
28e8609d 5463
5b56e7c5 5464#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3d7e8424
JH		 5465 /* In UNICOS/mk (_CRAYMPP) the multithreading
5466 * versions (getgrnam_r, getgrgid_r)
5467 * seem to return an illegal pointer
5468 * as the group members list, gr_mem.
5469 * getgrent() doesn't even have a _r version
5470 * but the gr_mem is poisonous anyway.
5471 * So yes, you cannot get the list of group
5472 * members if building multithreaded in UNICOS/mk. */
931e0695 5473 PUSHs(space_join_names_mortal(grent->gr_mem));
3d7e8424 5474#endif
a0d0e21e
LW		 5475 }
5476
5477 RETURN;
5478#else
af51a00e 5479 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5480#endif
5481}
5482
a0d0e21e
LW		 5483PP(pp_getlogin)
5484{
a0d0e21e 5485#ifdef HAS_GETLOGIN
20b7effb 5486 dSP; dTARGET;
a0d0e21e
LW		 5487 char *tmps;
5488 EXTEND(SP, 1);
76e3520e 5489 if (!(tmps = PerlProc_getlogin()))
a0d0e21e 5490 RETPUSHUNDEF;
bee8aa44
NC		 5491 sv_setpv_mg(TARG, tmps);
5492 PUSHs(TARG);
a0d0e21e
LW		 5493 RETURN;
5494#else
cea2e8a9 5495 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5496#endif
5497}
5498
5499/* Miscellaneous. */
5500
5501PP(pp_syscall)
5502{
d2719217 5503#ifdef HAS_SYSCALL
20b7effb 5504 dSP; dMARK; dORIGMARK; dTARGET;
eb578fdb 5505 I32 items = SP - MARK;
a0d0e21e 5506 unsigned long a[20];
eb578fdb 5507 I32 i = 0;
f9344c91 5508 IV retval = -1;
a0d0e21e 5509
284167a5 5510 if (TAINTING_get) {
a0d0e21e 5511 while (++MARK <= SP) {
bbce6d69 5512 if (SvTAINTED(*MARK)) {
5513 TAINT;
5514 break;
5515 }
a0d0e21e
LW		 5516 }
5517 MARK = ORIGMARK;
5518 TAINT_PROPER("syscall");
5519 }
5520
5521 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5522 * or where sizeof(long) != sizeof(char*). But such machines will
5523 * not likely have syscall implemented either, so who cares?
5524 */
5525 while (++MARK <= SP) {
5526 if (SvNIOK(*MARK) || !i)
5527 a[i++] = SvIV(*MARK);
3280af22 5528 else if (*MARK == &PL_sv_undef)
748a9306 5529 a[i++] = 0;
301e8125 5530 else
8b6b16e7 5531 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5532 if (i > 15)
5533 break;
5534 }
5535 switch (items) {
5536 default:
cea2e8a9 5537 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5538 case 0:
cea2e8a9 5539 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5540 case 1:
5541 retval = syscall(a[0]);
5542 break;
5543 case 2:
5544 retval = syscall(a[0],a[1]);
5545 break;
5546 case 3:
5547 retval = syscall(a[0],a[1],a[2]);
5548 break;
5549 case 4:
5550 retval = syscall(a[0],a[1],a[2],a[3]);
5551 break;
5552 case 5:
5553 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5554 break;
5555 case 6:
5556 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5557 break;
5558 case 7:
5559 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5560 break;
5561 case 8:
5562 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5563 break;
a0d0e21e
LW		 5564 }
5565 SP = ORIGMARK;
5566 PUSHi(retval);
5567 RETURN;
5568#else
cea2e8a9 5569 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5570#endif
5571}
5572
ff68c719 5573#ifdef FCNTL_EMULATE_FLOCK
301e8125 5574
ff68c719 5575/* XXX Emulate flock() with fcntl().
5576 What's really needed is a good file locking module.
5577*/
5578
cea2e8a9
GS		 5579static int
5580fcntl_emulate_flock(int fd, int operation)
ff68c719 5581{
fd9e8b45 5582 int res;
ff68c719 5583 struct flock flock;
301e8125 5584
ff68c719 5585 switch (operation & ~LOCK_NB) {
5586 case LOCK_SH:
5587 flock.l_type = F_RDLCK;
5588 break;
5589 case LOCK_EX:
5590 flock.l_type = F_WRLCK;
5591 break;
5592 case LOCK_UN:
5593 flock.l_type = F_UNLCK;
5594 break;
5595 default:
5596 errno = EINVAL;
5597 return -1;
5598 }
5599 flock.l_whence = SEEK_SET;
d9b3e12d 5600 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5601
fd9e8b45
JD		 5602 res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5603 if (res == -1 && ((errno == EAGAIN) || (errno == EACCES)))
5604 errno = EWOULDBLOCK;
5605 return res;
ff68c719 5606}
5607
5608#endif /* FCNTL_EMULATE_FLOCK */
5609
5610#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5611
5612/* XXX Emulate flock() with lockf(). This is just to increase
5613 portability of scripts. The calls are not completely
5614 interchangeable. What's really needed is a good file
5615 locking module.
5616*/
5617
76c32331 5618/* The lockf() constants might have been defined in <unistd.h>.
5619 Unfortunately, <unistd.h> causes troubles on some mixed
5620 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5621
5622 Further, the lockf() constants aren't POSIX, so they might not be
5623 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5624 just stick in the SVID values and be done with it. Sigh.
5625*/
5626
5627# ifndef F_ULOCK
5628# define F_ULOCK 0 /* Unlock a previously locked region */
5629# endif
5630# ifndef F_LOCK
5631# define F_LOCK 1 /* Lock a region for exclusive use */
5632# endif
5633# ifndef F_TLOCK
5634# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5635# endif
5636# ifndef F_TEST
5637# define F_TEST 3 /* Test a region for other processes locks */
5638# endif
5639
cea2e8a9
GS		 5640static int
5641lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5642{
5643 int i;
84902520 5644 Off_t pos;
4ee39169 5645 dSAVE_ERRNO;
84902520
TB		 5646
5647 /* flock locks entire file so for lockf we need to do the same */
6ad3d225 5648 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5649 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5650 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5651 pos = -1; /* seek failed, so don't seek back afterwards */
4ee39169 5652 RESTORE_ERRNO;
84902520 5653
16d20bd9
AD		 5654 switch (operation) {
5655
5656 /* LOCK_SH - get a shared lock */
5657 case LOCK_SH:
5658 /* LOCK_EX - get an exclusive lock */
5659 case LOCK_EX:
5660 i = lockf (fd, F_LOCK, 0);
5661 break;
5662
5663 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5664 case LOCK_SH|LOCK_NB:
5665 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5666 case LOCK_EX|LOCK_NB:
5667 i = lockf (fd, F_TLOCK, 0);
5668 if (i == -1)
5669 if ((errno == EAGAIN) || (errno == EACCES))
5670 errno = EWOULDBLOCK;
5671 break;
5672
ff68c719 5673 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5674 case LOCK_UN:
ff68c719 5675 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5676 i = lockf (fd, F_ULOCK, 0);
5677 break;
5678
5679 /* Default - can't decipher operation */
5680 default:
5681 i = -1;
5682 errno = EINVAL;
5683 break;
5684 }
84902520
TB		 5685
5686 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5687 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5688
16d20bd9
AD		 5689 return (i);
5690}
ff68c719 5691
5692#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5693
5694/*
5695 * Local variables:
5696 * c-indentation-style: bsd
5697 * c-basic-offset: 4
14d04a33 5698 * indent-tabs-mode: nil
241d1a3b
NC		 5699 * End:
5700 *
14d04a33 5701 * ex: set ts=8 sts=4 sw=4 et:
37442d52 5702 */
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