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Move $func_args into $self.
[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_WAIT
53# include <sys/wait.h>
54#endif
55
56#ifdef I_SYS_RESOURCE
57# include <sys/resource.h>
16d20bd9 58#endif
a0d0e21e 59
2986a63f
JH		 60#ifdef NETWARE
61NETDB_DEFINE_CONTEXT
62#endif
63
a0d0e21e 64#ifdef HAS_SELECT
1e743fda
JH		 65# ifdef I_SYS_SELECT
66# include <sys/select.h>
67# endif
a0d0e21e 68#endif
a0d0e21e 69
dc45a647
MB		 70/* XXX Configure test needed.
71 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 72 applications, see "extern int errno in perl.h". Creating such
73 a test requires taking into account the differences between
74 compiling multithreaded and singlethreaded ($ccflags et al).
75 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 76*/
cb50131a 77#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 78extern int h_errno;
79#endif
80
81#ifdef HAS_PASSWD
82# ifdef I_PWD
83# include <pwd.h>
84# else
fd8cd3a3 85# if !defined(VMS)
20ce7b12
GS		 86 struct passwd *getpwnam (char *);
87 struct passwd *getpwuid (Uid_t);
fd8cd3a3 88# endif
a0d0e21e 89# endif
28e8609d 90# ifdef HAS_GETPWENT
10bc17b6 91#ifndef getpwent
20ce7b12 92 struct passwd *getpwent (void);
c2a8f790 93#elif defined (VMS) && defined (my_getpwent)
9fa802f3 94 struct passwd *Perl_my_getpwent (pTHX);
10bc17b6 95#endif
28e8609d 96# endif
a0d0e21e
LW		 97#endif
98
99#ifdef HAS_GROUP
100# ifdef I_GRP
101# include <grp.h>
102# else
20ce7b12
GS		 103 struct group *getgrnam (char *);
104 struct group *getgrgid (Gid_t);
a0d0e21e 105# endif
28e8609d 106# ifdef HAS_GETGRENT
10bc17b6 107#ifndef getgrent
20ce7b12 108 struct group *getgrent (void);
10bc17b6 109#endif
28e8609d 110# endif
a0d0e21e
LW		 111#endif
112
113#ifdef I_UTIME
3730b96e 114# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 115# include <sys/utime.h>
116# else
117# include <utime.h>
118# endif
a0d0e21e 119#endif
a0d0e21e 120
cbdc8872 121#ifdef HAS_CHSIZE
cd52b7b2 122# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
123# undef my_chsize
124# endif
72cc7e2a 125# define my_chsize PerlLIO_chsize
27da23d5
JH		 126#else
127# ifdef HAS_TRUNCATE
128# define my_chsize PerlLIO_chsize
129# else
130I32 my_chsize(int fd, Off_t length);
131# endif
cbdc8872 132#endif
133
ff68c719 134#ifdef HAS_FLOCK
135# define FLOCK flock
136#else /* no flock() */
137
36477c24 138 /* fcntl.h might not have been included, even if it exists, because
139 the current Configure only sets I_FCNTL if it's needed to pick up
140 the *_OK constants. Make sure it has been included before testing
141 the fcntl() locking constants. */
142# if defined(HAS_FCNTL) && !defined(I_FCNTL)
143# include <fcntl.h>
144# endif
145
9d9004a9 146# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 147# define FLOCK fcntl_emulate_flock
148# define FCNTL_EMULATE_FLOCK
149# else /* no flock() or fcntl(F_SETLK,...) */
150# ifdef HAS_LOCKF
151# define FLOCK lockf_emulate_flock
152# define LOCKF_EMULATE_FLOCK
153# endif /* lockf */
154# endif /* no flock() or fcntl(F_SETLK,...) */
155
156# ifdef FLOCK
20ce7b12 157 static int FLOCK (int, int);
ff68c719 158
159 /*
160 * These are the flock() constants. Since this sytems doesn't have
161 * flock(), the values of the constants are probably not available.
162 */
163# ifndef LOCK_SH
164# define LOCK_SH 1
165# endif
166# ifndef LOCK_EX
167# define LOCK_EX 2
168# endif
169# ifndef LOCK_NB
170# define LOCK_NB 4
171# endif
172# ifndef LOCK_UN
173# define LOCK_UN 8
174# endif
175# endif /* emulating flock() */
176
177#endif /* no flock() */
55497cff 178
85ab1d1d 179#define ZBTLEN 10
27da23d5 180static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 181
5ff3f7a4
GS		 182#if defined(I_SYS_ACCESS) && !defined(R_OK)
183# include <sys/access.h>
184#endif
185
c529f79d
CB		 186#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
187# define FD_CLOEXEC 1 /* NeXT needs this */
188#endif
189
a4af207c
JH		 190#include "reentr.h"
191
9cffb111
OS		 192#ifdef __Lynx__
193/* Missing protos on LynxOS */
194void sethostent(int);
195void endhostent(void);
196void setnetent(int);
197void endnetent(void);
198void setprotoent(int);
199void endprotoent(void);
200void setservent(int);
201void endservent(void);
202#endif
203
faee0e31 204#undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
5ff3f7a4
GS		 205
206/* F_OK unused: if stat() cannot find it... */
207
d7558cad 208#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 209 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
d7558cad 210# define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
5ff3f7a4
GS		 211#endif
212
d7558cad 213#if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
3813c136 214# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 215# include <sys/security.h>
216# endif
c955f117
JH		 217# ifdef ACC_SELF
218 /* HP SecureWare */
d7558cad 219# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
c955f117
JH		 220# else
221 /* SCO */
d7558cad 222# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
c955f117 223# endif
5ff3f7a4
GS		 224#endif
225
d7558cad 226#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 227 /* AIX */
d7558cad 228# define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
5ff3f7a4
GS		 229#endif
230
d7558cad
NC		 231
232#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
327c3667
GS		 233 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
234 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 235/* The Hard Way. */
327c3667 236STATIC int
7f4774ae 237S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 238{
c4420975
AL		 239 const Uid_t ruid = getuid();
240 const Uid_t euid = geteuid();
241 const Gid_t rgid = getgid();
242 const Gid_t egid = getegid();
5ff3f7a4
GS		 243 int res;
244
5ff3f7a4 245#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 246 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 247#else
248#ifdef HAS_SETREUID
249 if (setreuid(euid, ruid))
250#else
251#ifdef HAS_SETRESUID
252 if (setresuid(euid, ruid, (Uid_t)-1))
253#endif
254#endif
cea2e8a9 255 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 256#endif
257
258#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 259 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 260#else
261#ifdef HAS_SETREGID
262 if (setregid(egid, rgid))
263#else
264#ifdef HAS_SETRESGID
265 if (setresgid(egid, rgid, (Gid_t)-1))
266#endif
267#endif
cea2e8a9 268 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 269#endif
270
271 res = access(path, mode);
272
273#ifdef HAS_SETREUID
274 if (setreuid(ruid, euid))
275#else
276#ifdef HAS_SETRESUID
277 if (setresuid(ruid, euid, (Uid_t)-1))
278#endif
279#endif
cea2e8a9 280 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 281
282#ifdef HAS_SETREGID
283 if (setregid(rgid, egid))
284#else
285#ifdef HAS_SETRESGID
286 if (setresgid(rgid, egid, (Gid_t)-1))
287#endif
288#endif
cea2e8a9 289 Perl_croak(aTHX_ "leaving effective gid failed");
5ff3f7a4
GS		 290
291 return res;
292}
d6864606 293# define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f)))
5ff3f7a4
GS		 294#endif
295
a0d0e21e
LW		 296PP(pp_backtick)
297{
97aff369 298 dVAR; dSP; dTARGET;
760ac839 299 PerlIO *fp;
1b6737cc 300 const char * const tmps = POPpconstx;
f54cb97a 301 const I32 gimme = GIMME_V;
e1ec3a88 302 const char *mode = "r";
54310121 303
a0d0e21e 304 TAINT_PROPER("``");
16fe6d59
GS		 305 if (PL_op->op_private & OPpOPEN_IN_RAW)
306 mode = "rb";
307 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
308 mode = "rt";
2fbb330f 309 fp = PerlProc_popen(tmps, mode);
a0d0e21e 310 if (fp) {
11bcd5da 311 const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
ac27b0f5
NIS		 312 if (type && *type)
313 PerlIO_apply_layers(aTHX_ fp,mode,type);
314
54310121 315 if (gimme == G_VOID) {
96827780
MB		 316 char tmpbuf[256];
317 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
a79db61d 318 NOOP;
54310121 319 }
320 else if (gimme == G_SCALAR) {
d343c3ef 321 ENTER_with_name("backtick");
75af1a9c 322 SAVESPTR(PL_rs);
fa326138 323 PL_rs = &PL_sv_undef;
76f68e9b 324 sv_setpvs(TARG, ""); /* note that this preserves previous buffer */
bd61b366 325 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
a79db61d 326 NOOP;
d343c3ef 327 LEAVE_with_name("backtick");
a0d0e21e 328 XPUSHs(TARG);
aa689395 329 SvTAINTED_on(TARG);
a0d0e21e
LW		 330 }
331 else {
a0d0e21e 332 for (;;) {
561b68a9 333 SV * const sv = newSV(79);
bd61b366 334 if (sv_gets(sv, fp, 0) == NULL) {
a0d0e21e
LW		 335 SvREFCNT_dec(sv);
336 break;
337 }
6e449a3a 338 mXPUSHs(sv);
a0d0e21e 339 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 340 SvPV_shrink_to_cur(sv);
a0d0e21e 341 }
aa689395 342 SvTAINTED_on(sv);
a0d0e21e
LW		 343 }
344 }
2fbb330f 345 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
aa689395 346 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 347 }
348 else {
37038d91 349 STATUS_NATIVE_CHILD_SET(-1);
54310121 350 if (gimme == G_SCALAR)
a0d0e21e
LW		 351 RETPUSHUNDEF;
352 }
353
354 RETURN;
355}
356
357PP(pp_glob)
358{
27da23d5 359 dVAR;
a0d0e21e 360 OP *result;
9426e1a5
DM		 361 dSP;
362 /* make a copy of the pattern, to ensure that magic is called once
363 * and only once */
364 TOPm1s = sv_2mortal(newSVsv(TOPm1s));
365
366 tryAMAGICunTARGET(iter_amg, -1, (PL_op->op_flags & OPf_SPECIAL));
d1bea3d8
DM		 367
368 if (PL_op->op_flags & OPf_SPECIAL) {
369 /* call Perl-level glob function instead. Stack args are:
370 * MARK, wildcard, csh_glob context index
371 * and following OPs should be: gv(CORE::GLOBAL::glob), entersub
372 * */
373 return NORMAL;
374 }
375 /* stack args are: wildcard, gv(_GEN_n) */
376
f5284f61 377
71686f12
GS		 378 /* Note that we only ever get here if File::Glob fails to load
379 * without at the same time croaking, for some reason, or if
380 * perl was built with PERL_EXTERNAL_GLOB */
381
d343c3ef 382 ENTER_with_name("glob");
a0d0e21e 383
c90c0ff4 384#ifndef VMS
3280af22 385 if (PL_tainting) {
7bac28a0 386 /*
387 * The external globbing program may use things we can't control,
388 * so for security reasons we must assume the worst.
389 */
390 TAINT;
22c35a8c 391 taint_proper(PL_no_security, "glob");
7bac28a0 392 }
c90c0ff4 393#endif /* !VMS */
7bac28a0 394
3280af22 395 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
159b6efe 396 PL_last_in_gv = MUTABLE_GV(*PL_stack_sp--);
a0d0e21e 397
3280af22 398 SAVESPTR(PL_rs); /* This is not permanent, either. */
84bafc02 399 PL_rs = newSVpvs_flags("\000", SVs_TEMP);
c07a80fd 400#ifndef DOSISH
401#ifndef CSH
6b88bc9c 402 *SvPVX(PL_rs) = '\n';
a0d0e21e 403#endif /* !CSH */
55497cff 404#endif /* !DOSISH */
c07a80fd 405
a0d0e21e 406 result = do_readline();
d343c3ef 407 LEAVE_with_name("glob");
a0d0e21e
LW		 408 return result;
409}
410
a0d0e21e
LW		 411PP(pp_rcatline)
412{
97aff369 413 dVAR;
146174a9 414 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 415 return do_readline();
416}
417
418PP(pp_warn)
419{
97aff369 420 dVAR; 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;
a0d0e21e 436 }
06bf62c7 437
72d74926 438 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z		 439 /* well-formed exception supplied */
440 }
441 else if (SvROK(ERRSV)) {
442 exsv = ERRSV;
443 }
444 else if (SvPOK(ERRSV) && SvCUR(ERRSV)) {
445 exsv = sv_mortalcopy(ERRSV);
446 sv_catpvs(exsv, "\t...caught");
447 }
448 else {
449 exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
450 }
3b7f69a5
FC		 451 if (SvROK(exsv) && !PL_warnhook)
452 Perl_warn(aTHX_ "%"SVf, SVfARG(exsv));
453 else warn_sv(exsv);
a0d0e21e
LW		 454 RETSETYES;
455}
456
457PP(pp_die)
458{
97aff369 459 dVAR; dSP; dMARK;
c5df3096 460 SV *exsv;
06bf62c7 461 STRLEN len;
96e176bf
CL		 462#ifdef VMS
463 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
464#endif
a0d0e21e
LW		 465 if (SP - MARK != 1) {
466 dTARGET;
3280af22 467 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 468 exsv = TARG;
a0d0e21e
LW		 469 SP = MARK + 1;
470 }
471 else {
c5df3096 472 exsv = TOPs;
a0d0e21e 473 }
c5df3096 474
72d74926 475 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z		 476 /* well-formed exception supplied */
477 }
478 else if (SvROK(ERRSV)) {
479 exsv = ERRSV;
480 if (sv_isobject(exsv)) {
481 HV * const stash = SvSTASH(SvRV(exsv));
482 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
483 if (gv) {
484 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
485 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
486 EXTEND(SP, 3);
487 PUSHMARK(SP);
488 PUSHs(exsv);
489 PUSHs(file);
490 PUSHs(line);
491 PUTBACK;
492 call_sv(MUTABLE_SV(GvCV(gv)),
493 G_SCALAR|G_EVAL|G_KEEPERR);
494 exsv = sv_mortalcopy(*PL_stack_sp--);
05423cc9 495 }
4e6ea2c3 496 }
a0d0e21e 497 }
c5df3096
Z		 498 else if (SvPOK(ERRSV) && SvCUR(ERRSV)) {
499 exsv = sv_mortalcopy(ERRSV);
500 sv_catpvs(exsv, "\t...propagated");
501 }
502 else {
503 exsv = newSVpvs_flags("Died", SVs_TEMP);
504 }
9fed9930 505 return die_sv(exsv);
a0d0e21e
LW		 506}
507
508/* I/O. */
509
d682515d
NC		 510OP *
511Perl_tied_method(pTHX_ const char *const methname, SV **sp, SV *const sv,
512 const MAGIC *const mg, const U32 flags, U32 argc, ...)
6bcca55b 513{
d8ef3a16
DM		 514 SV **orig_sp = sp;
515 I32 ret_args;
516
d682515d 517 PERL_ARGS_ASSERT_TIED_METHOD;
6bcca55b
NC		 518
519 /* Ensure that our flag bits do not overlap. */
d682515d
NC		 520 assert((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
521 assert((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
94bc412f 522 assert((TIED_METHOD_SAY & G_WANT) == 0);
6bcca55b 523
d8ef3a16
DM		 524 PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
525 PUSHSTACKi(PERLSI_MAGIC);
526 EXTEND(SP, argc+1); /* object + args */
6bcca55b 527 PUSHMARK(sp);
d682515d 528 PUSHs(SvTIED_obj(sv, mg));
d8ef3a16
DM		 529 if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
530 Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
1a8c1d59 531 sp += argc;
d8ef3a16 532 }
1a8c1d59 533 else if (argc) {
d682515d
NC		 534 const U32 mortalize_not_needed
535 = flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
6bcca55b 536 va_list args;
0d5509eb 537 va_start(args, argc);
6bcca55b
NC		 538 do {
539 SV *const arg = va_arg(args, SV *);
540 if(mortalize_not_needed)
541 PUSHs(arg);
542 else
543 mPUSHs(arg);
544 } while (--argc);
545 va_end(args);
546 }
547
548 PUTBACK;
d682515d 549 ENTER_with_name("call_tied_method");
94bc412f
NC		 550 if (flags & TIED_METHOD_SAY) {
551 /* local $\ = "\n" */
552 SAVEGENERICSV(PL_ors_sv);
553 PL_ors_sv = newSVpvs("\n");
554 }
d8ef3a16
DM		 555 ret_args = call_method(methname, flags & G_WANT);
556 SPAGAIN;
557 orig_sp = sp;
558 POPSTACK;
559 SPAGAIN;
560 if (ret_args) { /* copy results back to original stack */
561 EXTEND(sp, ret_args);
562 Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
563 sp += ret_args;
564 PUTBACK;
565 }
d682515d 566 LEAVE_with_name("call_tied_method");
6bcca55b
NC		 567 return NORMAL;
568}
569
d682515d
NC		 570#define tied_method0(a,b,c,d) \
571 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
572#define tied_method1(a,b,c,d,e) \
573 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
574#define tied_method2(a,b,c,d,e,f) \
575 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
6bcca55b 576
a0d0e21e
LW		 577PP(pp_open)
578{
27da23d5 579 dVAR; dSP;
a567e93b
NIS		 580 dMARK; dORIGMARK;
581 dTARGET;
a0d0e21e 582 SV *sv;
5b468f54 583 IO *io;
5c144d81 584 const char *tmps;
a0d0e21e 585 STRLEN len;
a567e93b 586 bool ok;
a0d0e21e 587
159b6efe 588 GV * const gv = MUTABLE_GV(*++MARK);
c4420975 589
13be902c 590 if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
cea2e8a9 591 DIE(aTHX_ PL_no_usym, "filehandle");
abc718f2 592
a79db61d 593 if ((io = GvIOp(gv))) {
a5e1d062 594 const MAGIC *mg;
36477c24 595 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 596
a2a5de95 597 if (IoDIRP(io))
d1d15184
NC		 598 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
599 "Opening dirhandle %s also as a file",
600 GvENAME(gv));
abc718f2 601
ad64d0ec 602 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
c4420975
AL		 603 if (mg) {
604 /* Method's args are same as ours ... */
605 /* ... except handle is replaced by the object */
d682515d
NC		 606 return Perl_tied_method(aTHX_ "OPEN", mark - 1, MUTABLE_SV(io), mg,
607 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
608 sp - mark);
c4420975 609 }
4592e6ca
NIS		 610 }
611
a567e93b
NIS		 612 if (MARK < SP) {
613 sv = *++MARK;
614 }
615 else {
35a08ec7 616 sv = GvSVn(gv);
a567e93b
NIS		 617 }
618
5c144d81 619 tmps = SvPV_const(sv, len);
4608196e 620 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
a567e93b
NIS		 621 SP = ORIGMARK;
622 if (ok)
3280af22
NIS		 623 PUSHi( (I32)PL_forkprocess );
624 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 625 PUSHi(0);
626 else
627 RETPUSHUNDEF;
628 RETURN;
629}
630
631PP(pp_close)
632{
27da23d5 633 dVAR; dSP;
159b6efe 634 GV * const gv = (MAXARG == 0) ? PL_defoutgv : MUTABLE_GV(POPs);
1d603a67 635
2addaaf3
NC		 636 if (MAXARG == 0)
637 EXTEND(SP, 1);
638
a79db61d
AL		 639 if (gv) {
640 IO * const io = GvIO(gv);
641 if (io) {
a5e1d062 642 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 643 if (mg) {
d682515d 644 return tied_method0("CLOSE", SP, MUTABLE_SV(io), mg);
a79db61d
AL		 645 }
646 }
1d603a67 647 }
54310121 648 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 649 RETURN;
650}
651
652PP(pp_pipe_op)
653{
a0d0e21e 654#ifdef HAS_PIPE
97aff369 655 dVAR;
9cad6237 656 dSP;
a0d0e21e
LW		 657 register IO *rstio;
658 register IO *wstio;
659 int fd[2];
660
159b6efe
NC		 661 GV * const wgv = MUTABLE_GV(POPs);
662 GV * const rgv = MUTABLE_GV(POPs);
a0d0e21e
LW		 663
664 if (!rgv || !wgv)
665 goto badexit;
666
6e592b3a 667 if (!isGV_with_GP(rgv) || !isGV_with_GP(wgv))
cea2e8a9 668 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 669 rstio = GvIOn(rgv);
670 wstio = GvIOn(wgv);
671
672 if (IoIFP(rstio))
673 do_close(rgv, FALSE);
674 if (IoIFP(wstio))
675 do_close(wgv, FALSE);
676
6ad3d225 677 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 678 goto badexit;
679
460c8493
IZ		 680 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
681 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 682 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 683 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 684 IoTYPE(rstio) = IoTYPE_RDONLY;
685 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 686
687 if (!IoIFP(rstio) || !IoOFP(wstio)) {
a79db61d
AL		 688 if (IoIFP(rstio))
689 PerlIO_close(IoIFP(rstio));
690 else
691 PerlLIO_close(fd[0]);
692 if (IoOFP(wstio))
693 PerlIO_close(IoOFP(wstio));
694 else
695 PerlLIO_close(fd[1]);
a0d0e21e
LW		 696 goto badexit;
697 }
4771b018
GS		 698#if defined(HAS_FCNTL) && defined(F_SETFD)
699 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
700 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
701#endif
a0d0e21e
LW		 702 RETPUSHYES;
703
704badexit:
705 RETPUSHUNDEF;
706#else
cea2e8a9 707 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 708#endif
709}
710
711PP(pp_fileno)
712{
27da23d5 713 dVAR; dSP; dTARGET;
a0d0e21e
LW		 714 GV *gv;
715 IO *io;
760ac839 716 PerlIO *fp;
a5e1d062 717 const MAGIC *mg;
4592e6ca 718
a0d0e21e
LW		 719 if (MAXARG < 1)
720 RETPUSHUNDEF;
159b6efe 721 gv = MUTABLE_GV(POPs);
9c9f25b8 722 io = GvIO(gv);
4592e6ca 723
9c9f25b8 724 if (io
ad64d0ec 725 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
5b468f54 726 {
d682515d 727 return tied_method0("FILENO", SP, MUTABLE_SV(io), mg);
4592e6ca
NIS		 728 }
729
9c9f25b8 730 if (!io || !(fp = IoIFP(io))) {
c289d2f7
JH		 731 /* Can't do this because people seem to do things like
732 defined(fileno($foo)) to check whether $foo is a valid fh.
51087808
NC		 733
734 report_evil_fh(gv);
c289d2f7 735 */
a0d0e21e 736 RETPUSHUNDEF;
c289d2f7
JH		 737 }
738
760ac839 739 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 740 RETURN;
741}
742
743PP(pp_umask)
744{
97aff369 745 dVAR;
27da23d5 746 dSP;
d7e492a4 747#ifdef HAS_UMASK
27da23d5 748 dTARGET;
761237fe 749 Mode_t anum;
a0d0e21e 750
a0d0e21e 751 if (MAXARG < 1) {
b0b546b3
GA		 752 anum = PerlLIO_umask(022);
753 /* setting it to 022 between the two calls to umask avoids
754 * to have a window where the umask is set to 0 -- meaning
755 * that another thread could create world-writeable files. */
756 if (anum != 022)
757 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 758 }
759 else
6ad3d225 760 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 761 TAINT_PROPER("umask");
762 XPUSHi(anum);
763#else
a0288114 764 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 765 * Otherwise it's harmless and more useful to just return undef
766 * since 'group' and 'other' concepts probably don't exist here. */
767 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 768 DIE(aTHX_ "umask not implemented");
6b88bc9c 769 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 770#endif
771 RETURN;
772}
773
774PP(pp_binmode)
775{
27da23d5 776 dVAR; dSP;
a0d0e21e
LW		 777 GV *gv;
778 IO *io;
760ac839 779 PerlIO *fp;
a0714e2c 780 SV *discp = NULL;
a0d0e21e
LW		 781
782 if (MAXARG < 1)
783 RETPUSHUNDEF;
60382766 784 if (MAXARG > 1) {
16fe6d59 785 discp = POPs;
60382766 786 }
a0d0e21e 787
159b6efe 788 gv = MUTABLE_GV(POPs);
9c9f25b8 789 io = GvIO(gv);
4592e6ca 790
9c9f25b8 791 if (io) {
a5e1d062 792 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 793 if (mg) {
bc0c81ca
NC		 794 /* This takes advantage of the implementation of the varargs
795 function, which I don't think that the optimiser will be able to
796 figure out. Although, as it's a static function, in theory it
797 could. */
d682515d
NC		 798 return Perl_tied_method(aTHX_ "BINMODE", SP, MUTABLE_SV(io), mg,
799 G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
800 discp ? 1 : 0, discp);
a79db61d 801 }
4592e6ca 802 }
a0d0e21e 803
9c9f25b8 804 if (!io || !(fp = IoIFP(io))) {
51087808 805 report_evil_fh(gv);
b5fe5ca2 806 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 807 RETPUSHUNDEF;
808 }
a0d0e21e 809
40d98b49 810 PUTBACK;
f0a78170 811 {
a79b25b7
VP		 812 STRLEN len = 0;
813 const char *d = NULL;
814 int mode;
815 if (discp)
816 d = SvPV_const(discp, len);
817 mode = mode_from_discipline(d, len);
f0a78170
NC		 818 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
819 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
820 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
821 SPAGAIN;
822 RETPUSHUNDEF;
823 }
824 }
825 SPAGAIN;
826 RETPUSHYES;
827 }
828 else {
829 SPAGAIN;
830 RETPUSHUNDEF;
38af81ff 831 }
40d98b49 832 }
a0d0e21e
LW		 833}
834
835PP(pp_tie)
836{
27da23d5 837 dVAR; dSP; dMARK;
a0d0e21e 838 HV* stash;
07822e36 839 GV *gv = NULL;
a0d0e21e 840 SV *sv;
1df70142 841 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 842 const char *methname;
14befaf4 843 int how = PERL_MAGIC_tied;
e336de0d 844 U32 items;
c4420975 845 SV *varsv = *++MARK;
a0d0e21e 846
6b05c17a
NIS		 847 switch(SvTYPE(varsv)) {
848 case SVt_PVHV:
849 methname = "TIEHASH";
85fbaab2 850 HvEITER_set(MUTABLE_HV(varsv), 0);
6b05c17a
NIS		 851 break;
852 case SVt_PVAV:
853 methname = "TIEARRAY";
854 break;
855 case SVt_PVGV:
13be902c 856 case SVt_PVLV:
8bb5f786 857 if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
6e592b3a
BM		 858 methname = "TIEHANDLE";
859 how = PERL_MAGIC_tiedscalar;
860 /* For tied filehandles, we apply tiedscalar magic to the IO
861 slot of the GP rather than the GV itself. AMS 20010812 */
862 if (!GvIOp(varsv))
863 GvIOp(varsv) = newIO();
ad64d0ec 864 varsv = MUTABLE_SV(GvIOp(varsv));
6e592b3a
BM		 865 break;
866 }
867 /* FALL THROUGH */
6b05c17a
NIS		 868 default:
869 methname = "TIESCALAR";
14befaf4 870 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 871 break;
872 }
e336de0d 873 items = SP - MARK++;
a91d1d42 874 if (sv_isobject(*MARK)) { /* Calls GET magic. */
d343c3ef 875 ENTER_with_name("call_TIE");
e788e7d3 876 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 877 PUSHMARK(SP);
eb160463 878 EXTEND(SP,(I32)items);
e336de0d
GS		 879 while (items--)
880 PUSHs(*MARK++);
881 PUTBACK;
864dbfa3 882 call_method(methname, G_SCALAR);
301e8125 883 }
6b05c17a 884 else {
086d2913
NC		 885 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
886 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
887 * wrong error message, and worse case, supreme action at a distance.
888 * (Sorry obfuscation writers. You're not going to be given this one.)
6b05c17a 889 */
a91d1d42
VP		 890 STRLEN len;
891 const char *name = SvPV_nomg_const(*MARK, len);
892 stash = gv_stashpvn(name, len, 0);
6b05c17a 893 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d 894 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
a91d1d42 895 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
6b05c17a 896 }
d343c3ef 897 ENTER_with_name("call_TIE");
e788e7d3 898 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 899 PUSHMARK(SP);
eb160463 900 EXTEND(SP,(I32)items);
e336de0d
GS		 901 while (items--)
902 PUSHs(*MARK++);
903 PUTBACK;
ad64d0ec 904 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
6b05c17a 905 }
a0d0e21e
LW		 906 SPAGAIN;
907
908 sv = TOPs;
d3acc0f7 909 POPSTACK;
a0d0e21e 910 if (sv_isobject(sv)) {
33c27489 911 sv_unmagic(varsv, how);
ae21d580 912 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 913 if (varsv == SvRV(sv) &&
d87ebaca
YST		 914 (SvTYPE(varsv) == SVt_PVAV ||
915 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 916 Perl_croak(aTHX_
917 "Self-ties of arrays and hashes are not supported");
a0714e2c 918 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
a0d0e21e 919 }
d343c3ef 920 LEAVE_with_name("call_TIE");
3280af22 921 SP = PL_stack_base + markoff;
a0d0e21e
LW		 922 PUSHs(sv);
923 RETURN;
924}
925
926PP(pp_untie)
927{
27da23d5 928 dVAR; dSP;
5b468f54 929 MAGIC *mg;
33c27489 930 SV *sv = POPs;
1df70142 931 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 932 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 933
ca0d4ed9 934 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54
AMS		 935 RETPUSHYES;
936
65eba18f 937 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 938 SV * const obj = SvRV(SvTIED_obj(sv, mg));
fa2b88e0 939 if (obj) {
c4420975 940 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
0bd48802 941 CV *cv;
c4420975 942 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0 943 PUSHMARK(SP);
c33ef3ac 944 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
6e449a3a 945 mXPUSHi(SvREFCNT(obj) - 1);
fa2b88e0 946 PUTBACK;
d343c3ef 947 ENTER_with_name("call_UNTIE");
ad64d0ec 948 call_sv(MUTABLE_SV(cv), G_VOID);
d343c3ef 949 LEAVE_with_name("call_UNTIE");
fa2b88e0
JS		 950 SPAGAIN;
951 }
a2a5de95
NC		 952 else if (mg && SvREFCNT(obj) > 1) {
953 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
954 "untie attempted while %"UVuf" inner references still exist",
955 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 956 }
cbdc8872 957 }
958 }
38193a09 959 sv_unmagic(sv, how) ;
55497cff 960 RETPUSHYES;
a0d0e21e
LW		 961}
962
c07a80fd 963PP(pp_tied)
964{
97aff369 965 dVAR;
39644a26 966 dSP;
1b6737cc 967 const MAGIC *mg;
33c27489 968 SV *sv = POPs;
1df70142 969 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 970 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54 971
4be76e1f 972 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54 973 RETPUSHUNDEF;
c07a80fd 974
155aba94 975 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 976 SV *osv = SvTIED_obj(sv, mg);
977 if (osv == mg->mg_obj)
978 osv = sv_mortalcopy(osv);
979 PUSHs(osv);
980 RETURN;
c07a80fd 981 }
c07a80fd 982 RETPUSHUNDEF;
983}
984
a0d0e21e
LW		 985PP(pp_dbmopen)
986{
27da23d5 987 dVAR; dSP;
a0d0e21e
LW		 988 dPOPPOPssrl;
989 HV* stash;
07822e36 990 GV *gv = NULL;
a0d0e21e 991
85fbaab2 992 HV * const hv = MUTABLE_HV(POPs);
84bafc02 993 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
da51bb9b 994 stash = gv_stashsv(sv, 0);
8ebc5c01 995 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 996 PUTBACK;
864dbfa3 997 require_pv("AnyDBM_File.pm");
a0d0e21e 998 SPAGAIN;
eff494dd 999 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 1000 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 1001 }
1002
57d3b86d 1003 ENTER;
924508f0 1004 PUSHMARK(SP);
6b05c17a 1005
924508f0 1006 EXTEND(SP, 5);
a0d0e21e
LW		 1007 PUSHs(sv);
1008 PUSHs(left);
1009 if (SvIV(right))
6e449a3a 1010 mPUSHu(O_RDWR|O_CREAT);
a0d0e21e 1011 else
6e449a3a 1012 mPUSHu(O_RDWR);
a0d0e21e 1013 PUSHs(right);
57d3b86d 1014 PUTBACK;
ad64d0ec 1015 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW		 1016 SPAGAIN;
1017
1018 if (!sv_isobject(TOPs)) {
924508f0
GS		 1019 SP--;
1020 PUSHMARK(SP);
a0d0e21e
LW		 1021 PUSHs(sv);
1022 PUSHs(left);
6e449a3a 1023 mPUSHu(O_RDONLY);
a0d0e21e 1024 PUSHs(right);
a0d0e21e 1025 PUTBACK;
ad64d0ec 1026 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW		 1027 SPAGAIN;
1028 }
1029
6b05c17a 1030 if (sv_isobject(TOPs)) {
ad64d0ec
NC		 1031 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1032 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
6b05c17a 1033 }
a0d0e21e
LW		 1034 LEAVE;
1035 RETURN;
1036}
1037
a0d0e21e
LW		 1038PP(pp_sselect)
1039{
a0d0e21e 1040#ifdef HAS_SELECT
97aff369 1041 dVAR; dSP; dTARGET;
a0d0e21e
LW		 1042 register I32 i;
1043 register I32 j;
1044 register char *s;
1045 register SV *sv;
65202027 1046 NV value;
a0d0e21e
LW		 1047 I32 maxlen = 0;
1048 I32 nfound;
1049 struct timeval timebuf;
1050 struct timeval *tbuf = &timebuf;
1051 I32 growsize;
1052 char *fd_sets[4];
1053#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1054 I32 masksize;
1055 I32 offset;
1056 I32 k;
1057
1058# if BYTEORDER & 0xf0000
1059# define ORDERBYTE (0x88888888 - BYTEORDER)
1060# else
1061# define ORDERBYTE (0x4444 - BYTEORDER)
1062# endif
1063
1064#endif
1065
1066 SP -= 4;
1067 for (i = 1; i <= 3; i++) {
c4420975 1068 SV * const sv = SP[i];
15547071
GA		 1069 if (!SvOK(sv))
1070 continue;
1071 if (SvREADONLY(sv)) {
729c079f
NC		 1072 if (SvIsCOW(sv))
1073 sv_force_normal_flags(sv, 0);
15547071 1074 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
6ad8f254 1075 Perl_croak_no_modify(aTHX);
729c079f 1076 }
4ef2275c 1077 if (!SvPOK(sv)) {
a2a5de95 1078 Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
4ef2275c
GA		 1079 SvPV_force_nolen(sv); /* force string conversion */
1080 }
729c079f 1081 j = SvCUR(sv);
a0d0e21e
LW		 1082 if (maxlen < j)
1083 maxlen = j;
1084 }
1085
5ff3f7a4 1086/* little endians can use vecs directly */
e366b469 1087#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1088# ifdef NFDBITS
a0d0e21e 1089
5ff3f7a4
GS		 1090# ifndef NBBY
1091# define NBBY 8
1092# endif
a0d0e21e
LW		 1093
1094 masksize = NFDBITS / NBBY;
5ff3f7a4 1095# else
a0d0e21e 1096 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1097# endif
a0d0e21e
LW		 1098 Zero(&fd_sets[0], 4, char*);
1099#endif
1100
ad517f75
MHM		 1101# if SELECT_MIN_BITS == 1
1102 growsize = sizeof(fd_set);
1103# else
1104# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1105# undef SELECT_MIN_BITS
1106# define SELECT_MIN_BITS __FD_SETSIZE
1107# endif
e366b469
PG		 1108 /* If SELECT_MIN_BITS is greater than one we most probably will want
1109 * to align the sizes with SELECT_MIN_BITS/8 because for example
1110 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1111 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1112 * on (sets/tests/clears bits) is 32 bits. */
1113 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1114# endif
1115
a0d0e21e
LW		 1116 sv = SP[4];
1117 if (SvOK(sv)) {
1118 value = SvNV(sv);
1119 if (value < 0.0)
1120 value = 0.0;
1121 timebuf.tv_sec = (long)value;
65202027 1122 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1123 timebuf.tv_usec = (long)(value * 1000000.0);
1124 }
1125 else
4608196e 1126 tbuf = NULL;
a0d0e21e
LW		 1127
1128 for (i = 1; i <= 3; i++) {
1129 sv = SP[i];
15547071 1130 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW		 1131 fd_sets[i] = 0;
1132 continue;
1133 }
4ef2275c 1134 assert(SvPOK(sv));
a0d0e21e
LW		 1135 j = SvLEN(sv);
1136 if (j < growsize) {
1137 Sv_Grow(sv, growsize);
a0d0e21e 1138 }
c07a80fd 1139 j = SvCUR(sv);
1140 s = SvPVX(sv) + j;
1141 while (++j <= growsize) {
1142 *s++ = '\0';
1143 }
1144
a0d0e21e
LW		 1145#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1146 s = SvPVX(sv);
a02a5408 1147 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1148 for (offset = 0; offset < growsize; offset += masksize) {
1149 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1150 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1151 }
1152#else
1153 fd_sets[i] = SvPVX(sv);
1154#endif
1155 }
1156
dc4c69d9
JH		 1157#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1158 /* Can't make just the (void*) conditional because that would be
1159 * cpp #if within cpp macro, and not all compilers like that. */
1160 nfound = PerlSock_select(
1161 maxlen * 8,
1162 (Select_fd_set_t) fd_sets[1],
1163 (Select_fd_set_t) fd_sets[2],
1164 (Select_fd_set_t) fd_sets[3],
1165 (void*) tbuf); /* Workaround for compiler bug. */
1166#else
6ad3d225 1167 nfound = PerlSock_select(
a0d0e21e
LW		 1168 maxlen * 8,
1169 (Select_fd_set_t) fd_sets[1],
1170 (Select_fd_set_t) fd_sets[2],
1171 (Select_fd_set_t) fd_sets[3],
1172 tbuf);
dc4c69d9 1173#endif
a0d0e21e
LW		 1174 for (i = 1; i <= 3; i++) {
1175 if (fd_sets[i]) {
1176 sv = SP[i];
1177#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1178 s = SvPVX(sv);
1179 for (offset = 0; offset < growsize; offset += masksize) {
1180 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1181 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1182 }
1183 Safefree(fd_sets[i]);
1184#endif
1185 SvSETMAGIC(sv);
1186 }
1187 }
1188
4189264e 1189 PUSHi(nfound);
a0d0e21e 1190 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1191 value = (NV)(timebuf.tv_sec) +
1192 (NV)(timebuf.tv_usec) / 1000000.0;
6e449a3a 1193 mPUSHn(value);
a0d0e21e
LW		 1194 }
1195 RETURN;
1196#else
cea2e8a9 1197 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1198#endif
1199}
1200
8226a3d7
NC		 1201/*
1202=for apidoc setdefout
1203
1204Sets PL_defoutgv, the default file handle for output, to the passed in
1205typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference
1206count of the passed in typeglob is increased by one, and the reference count
1207of the typeglob that PL_defoutgv points to is decreased by one.
1208
1209=cut
1210*/
1211
4633a7c4 1212void
864dbfa3 1213Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1214{
97aff369 1215 dVAR;
b37c2d43 1216 SvREFCNT_inc_simple_void(gv);
ef8d46e8 1217 SvREFCNT_dec(PL_defoutgv);
3280af22 1218 PL_defoutgv = gv;
4633a7c4
LW		 1219}
1220
a0d0e21e
LW		 1221PP(pp_select)
1222{
97aff369 1223 dVAR; dSP; dTARGET;
4633a7c4 1224 HV *hv;
159b6efe 1225 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
099be4f1 1226 GV * egv = GvEGVx(PL_defoutgv);
4633a7c4 1227
4633a7c4 1228 if (!egv)
3280af22 1229 egv = PL_defoutgv;
099be4f1 1230 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
4633a7c4 1231 if (! hv)
3280af22 1232 XPUSHs(&PL_sv_undef);
4633a7c4 1233 else {
c4420975 1234 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1235 if (gvp && *gvp == egv) {
bd61b366 1236 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
f86702cc 1237 XPUSHTARG;
1238 }
1239 else {
ad64d0ec 1240 mXPUSHs(newRV(MUTABLE_SV(egv)));
f86702cc 1241 }
4633a7c4
LW		 1242 }
1243
1244 if (newdefout) {
ded8aa31
GS		 1245 if (!GvIO(newdefout))
1246 gv_IOadd(newdefout);
4633a7c4
LW		 1247 setdefout(newdefout);
1248 }
1249
a0d0e21e
LW		 1250 RETURN;
1251}
1252
1253PP(pp_getc)
1254{
27da23d5 1255 dVAR; dSP; dTARGET;
159b6efe 1256 GV * const gv = (MAXARG==0) ? PL_stdingv : MUTABLE_GV(POPs);
9c9f25b8 1257 IO *const io = GvIO(gv);
2ae324a7 1258
ac3697cd
NC		 1259 if (MAXARG == 0)
1260 EXTEND(SP, 1);
1261
9c9f25b8 1262 if (io) {
a5e1d062 1263 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1264 if (mg) {
0240605e 1265 const U32 gimme = GIMME_V;
d682515d 1266 Perl_tied_method(aTHX_ "GETC", SP, MUTABLE_SV(io), mg, gimme, 0);
0240605e
NC		 1267 if (gimme == G_SCALAR) {
1268 SPAGAIN;
a79db61d 1269 SvSetMagicSV_nosteal(TARG, TOPs);
0240605e
NC		 1270 }
1271 return NORMAL;
a79db61d 1272 }
2ae324a7 1273 }
90133b69 1274 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
51087808 1275 if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
831e4cc3 1276 report_evil_fh(gv);
b5fe5ca2 1277 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1278 RETPUSHUNDEF;
90133b69 1279 }
bbce6d69 1280 TAINT;
76f68e9b 1281 sv_setpvs(TARG, " ");
9bc64814 1282 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1283 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1284 /* Find out how many bytes the char needs */
aa07b2f6 1285 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1286 if (len > 1) {
1287 SvGROW(TARG,len+1);
1288 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1289 SvCUR_set(TARG,1+len);
1290 }
1291 SvUTF8_on(TARG);
1292 }
a0d0e21e
LW		 1293 PUSHTARG;
1294 RETURN;
1295}
1296
76e3520e 1297STATIC OP *
cea2e8a9 1298S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1299{
27da23d5 1300 dVAR;
c09156bb 1301 register PERL_CONTEXT *cx;
f54cb97a 1302 const I32 gimme = GIMME_V;
a0d0e21e 1303
7918f24d
NC		 1304 PERL_ARGS_ASSERT_DOFORM;
1305
7b190374
NC		 1306 if (cv && CvCLONE(cv))
1307 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1308
a0d0e21e
LW		 1309 ENTER;
1310 SAVETMPS;
1311
146174a9 1312 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
10067d9a 1313 PUSHFORMAT(cx, retop);
fd617465
DM		 1314 SAVECOMPPAD();
1315 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1316
4633a7c4 1317 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1318 return CvSTART(cv);
1319}
1320
1321PP(pp_enterwrite)
1322{
97aff369 1323 dVAR;
39644a26 1324 dSP;
a0d0e21e
LW		 1325 register GV *gv;
1326 register IO *io;
1327 GV *fgv;
07822e36
JH		 1328 CV *cv = NULL;
1329 SV *tmpsv = NULL;
a0d0e21e 1330
2addaaf3 1331 if (MAXARG == 0) {
3280af22 1332 gv = PL_defoutgv;
2addaaf3
NC		 1333 EXTEND(SP, 1);
1334 }
a0d0e21e 1335 else {
159b6efe 1336 gv = MUTABLE_GV(POPs);
a0d0e21e 1337 if (!gv)
3280af22 1338 gv = PL_defoutgv;
a0d0e21e 1339 }
a0d0e21e
LW		 1340 io = GvIO(gv);
1341 if (!io) {
1342 RETPUSHNO;
1343 }
1344 if (IoFMT_GV(io))
1345 fgv = IoFMT_GV(io);
1346 else
1347 fgv = gv;
1348
a79db61d
AL		 1349 if (!fgv)
1350 goto not_a_format_reference;
1351
a0d0e21e 1352 cv = GvFORM(fgv);
a0d0e21e 1353 if (!cv) {
f4a7049d 1354 const char *name;
10edeb5d 1355 tmpsv = sv_newmortal();
f4a7049d
NC		 1356 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1357 name = SvPV_nolen_const(tmpsv);
1358 if (name && *name)
1359 DIE(aTHX_ "Undefined format \"%s\" called", name);
a79db61d
AL		 1360
1361 not_a_format_reference:
cea2e8a9 1362 DIE(aTHX_ "Not a format reference");
a0d0e21e 1363 }
44a8e56a 1364 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1365 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1366}
1367
1368PP(pp_leavewrite)
1369{
27da23d5 1370 dVAR; dSP;
f9c764c5 1371 GV * const gv = cxstack[cxstack_ix].blk_format.gv;
1b6737cc 1372 register IO * const io = GvIOp(gv);
8b8cacda 1373 PerlIO *ofp;
760ac839 1374 PerlIO *fp;
8772537c
AL		 1375 SV **newsp;
1376 I32 gimme;
c09156bb 1377 register PERL_CONTEXT *cx;
8f89e5a9 1378 OP *retop;
a0d0e21e 1379
8b8cacda
B		 1380 if (!io || !(ofp = IoOFP(io)))
1381 goto forget_top;
1382
760ac839 1383 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1384 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
8b8cacda 1385
3280af22
NIS		 1386 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1387 PL_formtarget != PL_toptarget)
a0d0e21e 1388 {
4633a7c4
LW		 1389 GV *fgv;
1390 CV *cv;
a0d0e21e
LW		 1391 if (!IoTOP_GV(io)) {
1392 GV *topgv;
a0d0e21e
LW		 1393
1394 if (!IoTOP_NAME(io)) {
1b6737cc 1395 SV *topname;
a0d0e21e
LW		 1396 if (!IoFMT_NAME(io))
1397 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1398 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
f776e3cd 1399 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
748a9306 1400 if ((topgv && GvFORM(topgv)) ||
fafc274c 1401 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
2e0de35c 1402 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1403 else
89529cee 1404 IoTOP_NAME(io) = savepvs("top");
a0d0e21e 1405 }
f776e3cd 1406 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
a0d0e21e 1407 if (!topgv || !GvFORM(topgv)) {
b929a54b 1408 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1409 goto forget_top;
1410 }
1411 IoTOP_GV(io) = topgv;
1412 }
748a9306
LW		 1413 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1414 I32 lines = IoLINES_LEFT(io);
504618e9 1415 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1416 if (lines <= 0) /* Yow, header didn't even fit!!! */
1417 goto forget_top;
748a9306
LW		 1418 while (lines-- > 0) {
1419 s = strchr(s, '\n');
1420 if (!s)
1421 break;
1422 s++;
1423 }
1424 if (s) {
f54cb97a 1425 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1426 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1427 do_print(PL_formtarget, ofp);
1428 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1429 sv_chop(PL_formtarget, s);
1430 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1431 }
1432 }
a0d0e21e 1433 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1434 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1435 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1436 IoPAGE(io)++;
3280af22 1437 PL_formtarget = PL_toptarget;
748a9306 1438 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1439 fgv = IoTOP_GV(io);
1440 if (!fgv)
cea2e8a9 1441 DIE(aTHX_ "bad top format reference");
4633a7c4 1442 cv = GvFORM(fgv);
1df70142
AL		 1443 if (!cv) {
1444 SV * const sv = sv_newmortal();
b464bac0 1445 const char *name;
bd61b366 1446 gv_efullname4(sv, fgv, NULL, FALSE);
e62f0680 1447 name = SvPV_nolen_const(sv);
2dd78f96 1448 if (name && *name)
0e528f24
JH		 1449 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1450 else
1451 DIE(aTHX_ "Undefined top format called");
4633a7c4 1452 }
0e528f24 1453 return doform(cv, gv, PL_op);
a0d0e21e
LW		 1454 }
1455
1456 forget_top:
3280af22 1457 POPBLOCK(cx,PL_curpm);
a0d0e21e 1458 POPFORMAT(cx);
8f89e5a9 1459 retop = cx->blk_sub.retop;
a0d0e21e
LW		 1460 LEAVE;
1461
1462 fp = IoOFP(io);
1463 if (!fp) {
7716c5c5
NC		 1464 if (IoIFP(io))
1465 report_wrongway_fh(gv, '<');
c521cf7c 1466 else
7716c5c5 1467 report_evil_fh(gv);
3280af22 1468 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1469 }
1470 else {
3280af22 1471 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
a2a5de95 1472 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1473 }
d75029d0 1474 if (!do_print(PL_formtarget, fp))
3280af22 1475 PUSHs(&PL_sv_no);
a0d0e21e 1476 else {
3280af22
NIS		 1477 FmLINES(PL_formtarget) = 0;
1478 SvCUR_set(PL_formtarget, 0);
1479 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1480 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1481 (void)PerlIO_flush(fp);
3280af22 1482 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1483 }
1484 }
9cbac4c7 1485 /* bad_ofp: */
3280af22 1486 PL_formtarget = PL_bodytarget;
a0d0e21e 1487 PUTBACK;
29033a8a
SH		 1488 PERL_UNUSED_VAR(newsp);
1489 PERL_UNUSED_VAR(gimme);
8f89e5a9 1490 return retop;
a0d0e21e
LW		 1491}
1492
1493PP(pp_prtf)
1494{
27da23d5 1495 dVAR; dSP; dMARK; dORIGMARK;
760ac839 1496 PerlIO *fp;
26db47c4 1497 SV *sv;
a0d0e21e 1498
159b6efe
NC		 1499 GV * const gv
1500 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
9c9f25b8 1501 IO *const io = GvIO(gv);
46fc3d4c 1502
9c9f25b8 1503 if (io) {
a5e1d062 1504 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL		 1505 if (mg) {
1506 if (MARK == ORIGMARK) {
1507 MEXTEND(SP, 1);
1508 ++MARK;
1509 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1510 ++SP;
1511 }
d682515d
NC		 1512 return Perl_tied_method(aTHX_ "PRINTF", mark - 1, MUTABLE_SV(io),
1513 mg,
1514 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1515 sp - mark);
a79db61d 1516 }
46fc3d4c 1517 }
1518
561b68a9 1519 sv = newSV(0);
9c9f25b8 1520 if (!io) {
51087808 1521 report_evil_fh(gv);
93189314 1522 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1523 goto just_say_no;
1524 }
1525 else if (!(fp = IoOFP(io))) {
7716c5c5
NC		 1526 if (IoIFP(io))
1527 report_wrongway_fh(gv, '<');
1528 else if (ckWARN(WARN_CLOSED))
1529 report_evil_fh(gv);
93189314 1530 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1531 goto just_say_no;
1532 }
1533 else {
1534 do_sprintf(sv, SP - MARK, MARK + 1);
1535 if (!do_print(sv, fp))
1536 goto just_say_no;
1537
1538 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1539 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1540 goto just_say_no;
1541 }
1542 SvREFCNT_dec(sv);
1543 SP = ORIGMARK;
3280af22 1544 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1545 RETURN;
1546
1547 just_say_no:
1548 SvREFCNT_dec(sv);
1549 SP = ORIGMARK;
3280af22 1550 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1551 RETURN;
1552}
1553
c07a80fd 1554PP(pp_sysopen)
1555{
97aff369 1556 dVAR;
39644a26 1557 dSP;
1df70142
AL		 1558 const int perm = (MAXARG > 3) ? POPi : 0666;
1559 const int mode = POPi;
1b6737cc 1560 SV * const sv = POPs;
159b6efe 1561 GV * const gv = MUTABLE_GV(POPs);
1b6737cc 1562 STRLEN len;
c07a80fd 1563
4592e6ca 1564 /* Need TIEHANDLE method ? */
1b6737cc 1565 const char * const tmps = SvPV_const(sv, len);
e62f0680 1566 /* FIXME? do_open should do const */
4608196e 1567 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
c07a80fd 1568 IoLINES(GvIOp(gv)) = 0;
3280af22 1569 PUSHs(&PL_sv_yes);
c07a80fd 1570 }
1571 else {
3280af22 1572 PUSHs(&PL_sv_undef);
c07a80fd 1573 }
1574 RETURN;
1575}
1576
a0d0e21e
LW		 1577PP(pp_sysread)
1578{
27da23d5 1579 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1580 int offset;
a0d0e21e
LW		 1581 IO *io;
1582 char *buffer;
5b54f415 1583 SSize_t length;
eb5c063a 1584 SSize_t count;
1e422769 1585 Sock_size_t bufsize;
748a9306 1586 SV *bufsv;
a0d0e21e 1587 STRLEN blen;
eb5c063a 1588 int fp_utf8;
1dd30107
NC		 1589 int buffer_utf8;
1590 SV *read_target;
eb5c063a
NIS		 1591 Size_t got = 0;
1592 Size_t wanted;
1d636c13 1593 bool charstart = FALSE;
87330c3c
JH		 1594 STRLEN charskip = 0;
1595 STRLEN skip = 0;
a0d0e21e 1596
159b6efe 1597 GV * const gv = MUTABLE_GV(*++MARK);
5b468f54 1598 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1599 && gv && (io = GvIO(gv)) )
137443ea 1600 {
a5e1d062 1601 const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1b6737cc 1602 if (mg) {
d682515d
NC		 1603 return Perl_tied_method(aTHX_ "READ", mark - 1, MUTABLE_SV(io), mg,
1604 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1605 sp - mark);
1b6737cc 1606 }
2ae324a7 1607 }
1608
a0d0e21e
LW		 1609 if (!gv)
1610 goto say_undef;
748a9306 1611 bufsv = *++MARK;
ff68c719 1612 if (! SvOK(bufsv))
76f68e9b 1613 sv_setpvs(bufsv, "");
a0d0e21e 1614 length = SvIVx(*++MARK);
748a9306 1615 SETERRNO(0,0);
a0d0e21e
LW		 1616 if (MARK < SP)
1617 offset = SvIVx(*++MARK);
1618 else
1619 offset = 0;
1620 io = GvIO(gv);
b5fe5ca2 1621 if (!io || !IoIFP(io)) {
51087808 1622 report_evil_fh(gv);
b5fe5ca2 1623 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1624 goto say_undef;
b5fe5ca2 1625 }
0064a8a9 1626 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1627 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1628 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1629 SvUTF8_on(bufsv);
9b9d7ce8 1630 buffer_utf8 = 0;
7d59b7e4
NIS		 1631 }
1632 else {
1633 buffer = SvPV_force(bufsv, blen);
1dd30107 1634 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1635 }
1636 if (length < 0)
1637 DIE(aTHX_ "Negative length");
eb5c063a 1638 wanted = length;
7d59b7e4 1639
d0965105
JH		 1640 charstart = TRUE;
1641 charskip = 0;
87330c3c 1642 skip = 0;
d0965105 1643
a0d0e21e 1644#ifdef HAS_SOCKET
533c011a 1645 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1646 char namebuf[MAXPATHLEN];
17a8c7ba 1647#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1648 bufsize = sizeof (struct sockaddr_in);
1649#else
46fc3d4c 1650 bufsize = sizeof namebuf;
490ab354 1651#endif
abf95952
IZ		 1652#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1653 if (bufsize >= 256)
1654 bufsize = 255;
1655#endif
eb160463 1656 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1657 /* 'offset' means 'flags' here */
eb5c063a 1658 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
10edeb5d 1659 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1660 if (count < 0)
a0d0e21e 1661 RETPUSHUNDEF;
8eb023a9
DM		 1662 /* MSG_TRUNC can give oversized count; quietly lose it */
1663 if (count > length)
1664 count = length;
4107cc59
OF		 1665#ifdef EPOC
1666 /* Bogus return without padding */
1667 bufsize = sizeof (struct sockaddr_in);
1668#endif
eb5c063a 1669 SvCUR_set(bufsv, count);
748a9306
LW		 1670 *SvEND(bufsv) = '\0';
1671 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1672 if (fp_utf8)
1673 SvUTF8_on(bufsv);
748a9306 1674 SvSETMAGIC(bufsv);
aac0dd9a 1675 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1676 if (!(IoFLAGS(io) & IOf_UNTAINT))
1677 SvTAINTED_on(bufsv);
a0d0e21e 1678 SP = ORIGMARK;
46fc3d4c 1679 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1680 PUSHs(TARG);
1681 RETURN;
1682 }
a0d0e21e 1683#endif
eb5c063a
NIS		 1684 if (DO_UTF8(bufsv)) {
1685 /* offset adjust in characters not bytes */
1686 blen = sv_len_utf8(bufsv);
7d59b7e4 1687 }
bbce6d69 1688 if (offset < 0) {
eb160463 1689 if (-offset > (int)blen)
cea2e8a9 1690 DIE(aTHX_ "Offset outside string");
bbce6d69 1691 offset += blen;
1692 }
eb5c063a
NIS		 1693 if (DO_UTF8(bufsv)) {
1694 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1695 if (offset >= (int)blen)
1696 offset += SvCUR(bufsv) - blen;
1697 else
1698 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1699 }
1700 more_bytes:
cd52b7b2 1701 bufsize = SvCUR(bufsv);
1dd30107
NC		 1702 /* Allocating length + offset + 1 isn't perfect in the case of reading
1703 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1704 unduly.
1705 (should be 2 * length + offset + 1, or possibly something longer if
1706 PL_encoding is true) */
eb160463 1707 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1708 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1709 Zero(buffer+bufsize, offset-bufsize, char);
1710 }
eb5c063a 1711 buffer = buffer + offset;
1dd30107
NC		 1712 if (!buffer_utf8) {
1713 read_target = bufsv;
1714 } else {
1715 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1716 concatenate it to the current buffer. */
1717
1718 /* Truncate the existing buffer to the start of where we will be
1719 reading to: */
1720 SvCUR_set(bufsv, offset);
1721
1722 read_target = sv_newmortal();
862a34c6 1723 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1724 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1725 }
eb5c063a 1726
533c011a 1727 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1728#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1729 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1730 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1731 buffer, length, 0);
a7092146
GS		 1732 }
1733 else
1734#endif
1735 {
eb5c063a
NIS		 1736 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1737 buffer, length);
a7092146 1738 }
a0d0e21e
LW		 1739 }
1740 else
1741#ifdef HAS_SOCKET__bad_code_maybe
50952442 1742 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1743 char namebuf[MAXPATHLEN];
490ab354
JH		 1744#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1745 bufsize = sizeof (struct sockaddr_in);
1746#else
46fc3d4c 1747 bufsize = sizeof namebuf;
490ab354 1748#endif
eb5c063a 1749 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1750 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1751 }
1752 else
1753#endif
3b02c43c 1754 {
eb5c063a
NIS		 1755 count = PerlIO_read(IoIFP(io), buffer, length);
1756 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1757 if (count == 0 && PerlIO_error(IoIFP(io)))
1758 count = -1;
3b02c43c 1759 }
eb5c063a 1760 if (count < 0) {
7716c5c5 1761 if (IoTYPE(io) == IoTYPE_WRONLY)
a5390457 1762 report_wrongway_fh(gv, '>');
a0d0e21e 1763 goto say_undef;
af8c498a 1764 }
aa07b2f6 1765 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1766 *SvEND(read_target) = '\0';
1767 (void)SvPOK_only(read_target);
0064a8a9 1768 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1769 /* Look at utf8 we got back and count the characters */
1df70142 1770 const char *bend = buffer + count;
eb5c063a 1771 while (buffer < bend) {
d0965105
JH		 1772 if (charstart) {
1773 skip = UTF8SKIP(buffer);
1774 charskip = 0;
1775 }
1776 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1777 /* partial character - try for rest of it */
1778 length = skip - (bend-buffer);
aa07b2f6 1779 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1780 charstart = FALSE;
1781 charskip += count;
eb5c063a
NIS		 1782 goto more_bytes;
1783 }
1784 else {
1785 got++;
1786 buffer += skip;
d0965105
JH		 1787 charstart = TRUE;
1788 charskip = 0;
eb5c063a
NIS		 1789 }
1790 }
1791 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1792 provided amount read (count) was what was requested (length)
1793 */
1794 if (got < wanted && count == length) {
d0965105 1795 length = wanted - got;
aa07b2f6 1796 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1797 goto more_bytes;
1798 }
1799 /* return value is character count */
1800 count = got;
1801 SvUTF8_on(bufsv);
1802 }
1dd30107
NC		 1803 else if (buffer_utf8) {
1804 /* Let svcatsv upgrade the bytes we read in to utf8.
1805 The buffer is a mortal so will be freed soon. */
1806 sv_catsv_nomg(bufsv, read_target);
1807 }
748a9306 1808 SvSETMAGIC(bufsv);
aac0dd9a 1809 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1810 if (!(IoFLAGS(io) & IOf_UNTAINT))
1811 SvTAINTED_on(bufsv);
a0d0e21e 1812 SP = ORIGMARK;
eb5c063a 1813 PUSHi(count);
a0d0e21e
LW		 1814 RETURN;
1815
1816 say_undef:
1817 SP = ORIGMARK;
1818 RETPUSHUNDEF;
1819}
1820
60504e18 1821PP(pp_syswrite)
a0d0e21e 1822{
27da23d5 1823 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
748a9306 1824 SV *bufsv;
83003860 1825 const char *buffer;
8c99d73e 1826 SSize_t retval;
a0d0e21e 1827 STRLEN blen;
c9cb0f41 1828 STRLEN orig_blen_bytes;
64a1bc8e 1829 const int op_type = PL_op->op_type;
c9cb0f41
NC		 1830 bool doing_utf8;
1831 U8 *tmpbuf = NULL;
159b6efe 1832 GV *const gv = MUTABLE_GV(*++MARK);
91472ad4
NC		 1833 IO *const io = GvIO(gv);
1834
1835 if (op_type == OP_SYSWRITE && io) {
a5e1d062 1836 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1837 if (mg) {
a79db61d 1838 if (MARK == SP - 1) {
c8834ab7
TC		 1839 SV *sv = *SP;
1840 mXPUSHi(sv_len(sv));
a79db61d
AL		 1841 PUTBACK;
1842 }
1843
d682515d
NC		 1844 return Perl_tied_method(aTHX_ "WRITE", mark - 1, MUTABLE_SV(io), mg,
1845 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1846 sp - mark);
64a1bc8e 1847 }
1d603a67 1848 }
a0d0e21e
LW		 1849 if (!gv)
1850 goto say_undef;
64a1bc8e 1851
748a9306 1852 bufsv = *++MARK;
64a1bc8e 1853
748a9306 1854 SETERRNO(0,0);
cf167416 1855 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
8c99d73e 1856 retval = -1;
51087808
NC		 1857 if (io && IoIFP(io))
1858 report_wrongway_fh(gv, '<');
1859 else
1860 report_evil_fh(gv);
b5fe5ca2 1861 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1862 goto say_undef;
1863 }
1864
c9cb0f41
NC		 1865 /* Do this first to trigger any overloading. */
1866 buffer = SvPV_const(bufsv, blen);
1867 orig_blen_bytes = blen;
1868 doing_utf8 = DO_UTF8(bufsv);
1869
7d59b7e4 1870 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7 1871 if (!SvUTF8(bufsv)) {
c9cb0f41
NC		 1872 /* We don't modify the original scalar. */
1873 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1874 buffer = (char *) tmpbuf;
1875 doing_utf8 = TRUE;
1876 }
a0d0e21e 1877 }
c9cb0f41
NC		 1878 else if (doing_utf8) {
1879 STRLEN tmplen = blen;
a79db61d 1880 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
c9cb0f41
NC		 1881 if (!doing_utf8) {
1882 tmpbuf = result;
1883 buffer = (char *) tmpbuf;
1884 blen = tmplen;
1885 }
1886 else {
1887 assert((char *)result == buffer);
1888 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1889 }
7d59b7e4
NIS		 1890 }
1891
e2712234 1892#ifdef HAS_SOCKET
7627e6d0 1893 if (op_type == OP_SEND) {
e2712234
NC		 1894 const int flags = SvIVx(*++MARK);
1895 if (SP > MARK) {
1896 STRLEN mlen;
1897 char * const sockbuf = SvPVx(*++MARK, mlen);
1898 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1899 flags, (struct sockaddr *)sockbuf, mlen);
1900 }
1901 else {
1902 retval
1903 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1904 }
7627e6d0
NC		 1905 }
1906 else
e2712234 1907#endif
7627e6d0 1908 {
c9cb0f41
NC		 1909 Size_t length = 0; /* This length is in characters. */
1910 STRLEN blen_chars;
7d59b7e4 1911 IV offset;
c9cb0f41
NC		 1912
1913 if (doing_utf8) {
1914 if (tmpbuf) {
1915 /* The SV is bytes, and we've had to upgrade it. */
1916 blen_chars = orig_blen_bytes;
1917 } else {
1918 /* The SV really is UTF-8. */
1919 if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1920 /* Don't call sv_len_utf8 again because it will call magic
1921 or overloading a second time, and we might get back a
1922 different result. */
9a206dfd 1923 blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen);
c9cb0f41
NC		 1924 } else {
1925 /* It's safe, and it may well be cached. */
1926 blen_chars = sv_len_utf8(bufsv);
1927 }
1928 }
1929 } else {
1930 blen_chars = blen;
1931 }
1932
1933 if (MARK >= SP) {
1934 length = blen_chars;
1935 } else {
1936#if Size_t_size > IVSIZE
1937 length = (Size_t)SvNVx(*++MARK);
1938#else
1939 length = (Size_t)SvIVx(*++MARK);
1940#endif
4b0c4b6f
NC		 1941 if ((SSize_t)length < 0) {
1942 Safefree(tmpbuf);
c9cb0f41 1943 DIE(aTHX_ "Negative length");
4b0c4b6f 1944 }
7d59b7e4 1945 }
c9cb0f41 1946
bbce6d69 1947 if (MARK < SP) {
a0d0e21e 1948 offset = SvIVx(*++MARK);
bbce6d69 1949 if (offset < 0) {
4b0c4b6f
NC		 1950 if (-offset > (IV)blen_chars) {
1951 Safefree(tmpbuf);
cea2e8a9 1952 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1953 }
c9cb0f41 1954 offset += blen_chars;
3c946528 1955 } else if (offset > (IV)blen_chars) {
4b0c4b6f 1956 Safefree(tmpbuf);
cea2e8a9 1957 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1958 }
bbce6d69 1959 } else
a0d0e21e 1960 offset = 0;
c9cb0f41
NC		 1961 if (length > blen_chars - offset)
1962 length = blen_chars - offset;
1963 if (doing_utf8) {
1964 /* Here we convert length from characters to bytes. */
1965 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1966 /* Either we had to convert the SV, or the SV is magical, or
1967 the SV has overloading, in which case we can't or mustn't
1968 or mustn't call it again. */
1969
1970 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1971 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1972 } else {
1973 /* It's a real UTF-8 SV, and it's not going to change under
1974 us. Take advantage of any cache. */
1975 I32 start = offset;
1976 I32 len_I32 = length;
1977
1978 /* Convert the start and end character positions to bytes.
1979 Remember that the second argument to sv_pos_u2b is relative
1980 to the first. */
1981 sv_pos_u2b(bufsv, &start, &len_I32);
1982
1983 buffer += start;
1984 length = len_I32;
1985 }
7d59b7e4
NIS		 1986 }
1987 else {
1988 buffer = buffer+offset;
1989 }
a7092146 1990#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1991 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1992 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1993 buffer, length, 0);
a7092146
GS		 1994 }
1995 else
1996#endif
1997 {
94e4c244 1998 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1999 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 2000 buffer, length);
a7092146 2001 }
a0d0e21e 2002 }
c9cb0f41 2003
8c99d73e 2004 if (retval < 0)
a0d0e21e
LW		 2005 goto say_undef;
2006 SP = ORIGMARK;
c9cb0f41 2007 if (doing_utf8)
f36eea10 2008 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
4b0c4b6f 2009
a79db61d 2010 Safefree(tmpbuf);
8c99d73e
GS		 2011#if Size_t_size > IVSIZE
2012 PUSHn(retval);
2013#else
2014 PUSHi(retval);
2015#endif
a0d0e21e
LW		 2016 RETURN;
2017
2018 say_undef:
a79db61d 2019 Safefree(tmpbuf);
a0d0e21e
LW		 2020 SP = ORIGMARK;
2021 RETPUSHUNDEF;
2022}
2023
a0d0e21e
LW		 2024PP(pp_eof)
2025{
27da23d5 2026 dVAR; dSP;
a0d0e21e 2027 GV *gv;
32e65323 2028 IO *io;
a5e1d062 2029 const MAGIC *mg;
bc0c81ca
NC		 2030 /*
2031 * in Perl 5.12 and later, the additional parameter is a bitmask:
2032 * 0 = eof
2033 * 1 = eof(FH)
2034 * 2 = eof() <- ARGV magic
2035 *
2036 * I'll rely on the compiler's trace flow analysis to decide whether to
2037 * actually assign this out here, or punt it into the only block where it is
2038 * used. Doing it out here is DRY on the condition logic.
2039 */
2040 unsigned int which;
a0d0e21e 2041
bc0c81ca 2042 if (MAXARG) {
32e65323 2043 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
bc0c81ca
NC		 2044 which = 1;
2045 }
b5f55170
NC		 2046 else {
2047 EXTEND(SP, 1);
2048
bc0c81ca 2049 if (PL_op->op_flags & OPf_SPECIAL) {
b5f55170 2050 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
bc0c81ca
NC		 2051 which = 2;
2052 }
2053 else {
b5f55170 2054 gv = PL_last_in_gv; /* eof */
bc0c81ca
NC		 2055 which = 0;
2056 }
b5f55170 2057 }
32e65323
CS		 2058
2059 if (!gv)
2060 RETPUSHNO;
2061
2062 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
d682515d 2063 return tied_method1("EOF", SP, MUTABLE_SV(io), mg, newSVuv(which));
146174a9 2064 }
4592e6ca 2065
32e65323
CS		 2066 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2067 if (io && !IoIFP(io)) {
2068 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2069 IoLINES(io) = 0;
2070 IoFLAGS(io) &= ~IOf_START;
2071 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2072 if (GvSV(gv))
2073 sv_setpvs(GvSV(gv), "-");
2074 else
2075 GvSV(gv) = newSVpvs("-");
2076 SvSETMAGIC(GvSV(gv));
2077 }
2078 else if (!nextargv(gv))
2079 RETPUSHYES;
6136c704 2080 }
4592e6ca
NIS		 2081 }
2082
32e65323 2083 PUSHs(boolSV(do_eof(gv)));
a0d0e21e
LW		 2084 RETURN;
2085}
2086
2087PP(pp_tell)
2088{
27da23d5 2089 dVAR; dSP; dTARGET;
301e8125 2090 GV *gv;
5b468f54 2091 IO *io;
a0d0e21e 2092
c4420975 2093 if (MAXARG != 0)
159b6efe 2094 PL_last_in_gv = MUTABLE_GV(POPs);
ac3697cd
NC		 2095 else
2096 EXTEND(SP, 1);
c4420975 2097 gv = PL_last_in_gv;
4592e6ca 2098
9c9f25b8
NC		 2099 io = GvIO(gv);
2100 if (io) {
a5e1d062 2101 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2102 if (mg) {
d682515d 2103 return tied_method0("TELL", SP, MUTABLE_SV(io), mg);
a79db61d 2104 }
4592e6ca 2105 }
f4817f32 2106 else if (!gv) {
f03173f2
RGS		 2107 if (!errno)
2108 SETERRNO(EBADF,RMS_IFI);
2109 PUSHi(-1);
2110 RETURN;
2111 }
4592e6ca 2112
146174a9
CB		 2113#if LSEEKSIZE > IVSIZE
2114 PUSHn( do_tell(gv) );
2115#else
a0d0e21e 2116 PUSHi( do_tell(gv) );
146174a9 2117#endif
a0d0e21e
LW		 2118 RETURN;
2119}
2120
137443ea 2121PP(pp_sysseek)
2122{
27da23d5 2123 dVAR; dSP;
1df70142 2124 const int whence = POPi;
146174a9 2125#if LSEEKSIZE > IVSIZE
7452cf6a 2126 const Off_t offset = (Off_t)SvNVx(POPs);
146174a9 2127#else
7452cf6a 2128 const Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2129#endif
a0d0e21e 2130
159b6efe 2131 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
9c9f25b8 2132 IO *const io = GvIO(gv);
4592e6ca 2133
9c9f25b8 2134 if (io) {
a5e1d062 2135 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2136 if (mg) {
cb50131a 2137#if LSEEKSIZE > IVSIZE
74f0b550 2138 SV *const offset_sv = newSVnv((NV) offset);
cb50131a 2139#else
74f0b550 2140 SV *const offset_sv = newSViv(offset);
cb50131a 2141#endif
bc0c81ca 2142
d682515d
NC		 2143 return tied_method2("SEEK", SP, MUTABLE_SV(io), mg, offset_sv,
2144 newSViv(whence));
a79db61d 2145 }
4592e6ca
NIS		 2146 }
2147
533c011a 2148 if (PL_op->op_type == OP_SEEK)
8903cb82 2149 PUSHs(boolSV(do_seek(gv, offset, whence)));
2150 else {
0bcc34c2 2151 const Off_t sought = do_sysseek(gv, offset, whence);
b448e4fe 2152 if (sought < 0)
146174a9
CB		 2153 PUSHs(&PL_sv_undef);
2154 else {
7452cf6a 2155 SV* const sv = sought ?
146174a9 2156#if LSEEKSIZE > IVSIZE
b448e4fe 2157 newSVnv((NV)sought)
146174a9 2158#else
b448e4fe 2159 newSViv(sought)
146174a9
CB		 2160#endif
2161 : newSVpvn(zero_but_true, ZBTLEN);
6e449a3a 2162 mPUSHs(sv);
146174a9 2163 }
8903cb82 2164 }
a0d0e21e
LW		 2165 RETURN;
2166}
2167
2168PP(pp_truncate)
2169{
97aff369 2170 dVAR;
39644a26 2171 dSP;
8c99d73e
GS		 2172 /* There seems to be no consensus on the length type of truncate()
2173 * and ftruncate(), both off_t and size_t have supporters. In
2174 * general one would think that when using large files, off_t is
2175 * at least as wide as size_t, so using an off_t should be okay. */
2176 /* XXX Configure probe for the length type of *truncate() needed XXX */
0bcc34c2 2177 Off_t len;
a0d0e21e 2178
25342a55 2179#if Off_t_size > IVSIZE
0bcc34c2 2180 len = (Off_t)POPn;
8c99d73e 2181#else
0bcc34c2 2182 len = (Off_t)POPi;
8c99d73e
GS		 2183#endif
2184 /* Checking for length < 0 is problematic as the type might or
301e8125 2185 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2186 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2187 SETERRNO(0,0);
d05c1ba0 2188 {
d05c1ba0
JH		 2189 int result = 1;
2190 GV *tmpgv;
090bf15b
SR		 2191 IO *io;
2192
d05c1ba0 2193 if (PL_op->op_flags & OPf_SPECIAL) {
f776e3cd 2194 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
d05c1ba0 2195
090bf15b 2196 do_ftruncate_gv:
9c9f25b8
NC		 2197 io = GvIO(tmpgv);
2198 if (!io)
090bf15b 2199 result = 0;
d05c1ba0 2200 else {
090bf15b 2201 PerlIO *fp;
090bf15b
SR		 2202 do_ftruncate_io:
2203 TAINT_PROPER("truncate");
2204 if (!(fp = IoIFP(io))) {
2205 result = 0;
2206 }
2207 else {
2208 PerlIO_flush(fp);
cbdc8872 2209#ifdef HAS_TRUNCATE
090bf15b 2210 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2211#else
090bf15b 2212 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2213#endif
090bf15b
SR		 2214 result = 0;
2215 }
d05c1ba0 2216 }
cbdc8872 2217 }
d05c1ba0 2218 else {
7452cf6a 2219 SV * const sv = POPs;
83003860 2220 const char *name;
7a5fd60d 2221
6e592b3a 2222 if (isGV_with_GP(sv)) {
159b6efe 2223 tmpgv = MUTABLE_GV(sv); /* *main::FRED for example */
090bf15b 2224 goto do_ftruncate_gv;
d05c1ba0 2225 }
6e592b3a 2226 else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 2227 tmpgv = MUTABLE_GV(SvRV(sv)); /* \*main::FRED for example */
090bf15b
SR		 2228 goto do_ftruncate_gv;
2229 }
2230 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2231 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
090bf15b 2232 goto do_ftruncate_io;
d05c1ba0 2233 }
1e422769 2234
83003860 2235 name = SvPV_nolen_const(sv);
d05c1ba0 2236 TAINT_PROPER("truncate");
cbdc8872 2237#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2238 if (truncate(name, len) < 0)
2239 result = 0;
cbdc8872 2240#else
d05c1ba0 2241 {
7452cf6a 2242 const int tmpfd = PerlLIO_open(name, O_RDWR);
d05c1ba0 2243
7452cf6a 2244 if (tmpfd < 0)
cbdc8872 2245 result = 0;
d05c1ba0
JH		 2246 else {
2247 if (my_chsize(tmpfd, len) < 0)
2248 result = 0;
2249 PerlLIO_close(tmpfd);
2250 }
cbdc8872 2251 }
a0d0e21e 2252#endif
d05c1ba0 2253 }
a0d0e21e 2254
d05c1ba0
JH		 2255 if (result)
2256 RETPUSHYES;
2257 if (!errno)
93189314 2258 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2259 RETPUSHUNDEF;
2260 }
a0d0e21e
LW		 2261}
2262
a0d0e21e
LW		 2263PP(pp_ioctl)
2264{
97aff369 2265 dVAR; dSP; dTARGET;
7452cf6a 2266 SV * const argsv = POPs;
1df70142 2267 const unsigned int func = POPu;
e1ec3a88 2268 const int optype = PL_op->op_type;
159b6efe 2269 GV * const gv = MUTABLE_GV(POPs);
4608196e 2270 IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2271 char *s;
324aa91a 2272 IV retval;
a0d0e21e 2273
748a9306 2274 if (!io || !argsv || !IoIFP(io)) {
51087808 2275 report_evil_fh(gv);
93189314 2276 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2277 RETPUSHUNDEF;
2278 }
2279
748a9306 2280 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2281 STRLEN len;
324aa91a 2282 STRLEN need;
748a9306 2283 s = SvPV_force(argsv, len);
324aa91a
HF		 2284 need = IOCPARM_LEN(func);
2285 if (len < need) {
2286 s = Sv_Grow(argsv, need + 1);
2287 SvCUR_set(argsv, need);
a0d0e21e
LW		 2288 }
2289
748a9306 2290 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2291 }
2292 else {
748a9306 2293 retval = SvIV(argsv);
c529f79d 2294 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2295 }
2296
ed4b2e6b 2297 TAINT_PROPER(PL_op_desc[optype]);
a0d0e21e
LW		 2298
2299 if (optype == OP_IOCTL)
2300#ifdef HAS_IOCTL
76e3520e 2301 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2302#else
cea2e8a9 2303 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2304#endif
2305 else
c214f4ad
WB		 2306#ifndef HAS_FCNTL
2307 DIE(aTHX_ "fcntl is not implemented");
2308#else
55497cff 2309#if defined(OS2) && defined(__EMX__)
760ac839 2310 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2311#else
760ac839 2312 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2313#endif
6652bd42 2314#endif
a0d0e21e 2315
6652bd42 2316#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2317 if (SvPOK(argsv)) {
2318 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2319 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2320 OP_NAME(PL_op));
748a9306
LW		 2321 s[SvCUR(argsv)] = 0; /* put our null back */
2322 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2323 }
2324
2325 if (retval == -1)
2326 RETPUSHUNDEF;
2327 if (retval != 0) {
2328 PUSHi(retval);
2329 }
2330 else {
8903cb82 2331 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2332 }
4808266b 2333#endif
c214f4ad 2334 RETURN;
a0d0e21e
LW		 2335}
2336
2337PP(pp_flock)
2338{
9cad6237 2339#ifdef FLOCK
97aff369 2340 dVAR; dSP; dTARGET;
a0d0e21e 2341 I32 value;
7452cf6a 2342 const int argtype = POPi;
159b6efe 2343 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : MUTABLE_GV(POPs);
9c9f25b8
NC		 2344 IO *const io = GvIO(gv);
2345 PerlIO *const fp = io ? IoIFP(io) : NULL;
16d20bd9 2346
0bcc34c2 2347 /* XXX Looks to me like io is always NULL at this point */
a0d0e21e 2348 if (fp) {
68dc0745 2349 (void)PerlIO_flush(fp);
76e3520e 2350 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2351 }
cb50131a 2352 else {
51087808 2353 report_evil_fh(gv);
a0d0e21e 2354 value = 0;
93189314 2355 SETERRNO(EBADF,RMS_IFI);
cb50131a 2356 }
a0d0e21e
LW		 2357 PUSHi(value);
2358 RETURN;
2359#else
cea2e8a9 2360 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2361#endif
2362}
2363
2364/* Sockets. */
2365
7627e6d0
NC		 2366#ifdef HAS_SOCKET
2367
a0d0e21e
LW		 2368PP(pp_socket)
2369{
97aff369 2370 dVAR; dSP;
7452cf6a
AL		 2371 const int protocol = POPi;
2372 const int type = POPi;
2373 const int domain = POPi;
159b6efe 2374 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2375 register IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e
LW		 2376 int fd;
2377
9c9f25b8 2378 if (!io) {
51087808 2379 report_evil_fh(gv);
5ee74a84 2380 if (io && IoIFP(io))
c289d2f7 2381 do_close(gv, FALSE);
93189314 2382 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2383 RETPUSHUNDEF;
2384 }
2385
57171420
BS		 2386 if (IoIFP(io))
2387 do_close(gv, FALSE);
2388
a0d0e21e 2389 TAINT_PROPER("socket");
6ad3d225 2390 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2391 if (fd < 0)
2392 RETPUSHUNDEF;
460c8493
IZ		 2393 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2394 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2395 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2396 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2397 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2398 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2399 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2400 RETPUSHUNDEF;
2401 }
8d2a6795
GS		 2402#if defined(HAS_FCNTL) && defined(F_SETFD)
2403 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2404#endif
a0d0e21e 2405
d5ff79b3
OF		 2406#ifdef EPOC
2407 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2408#endif
2409
a0d0e21e 2410 RETPUSHYES;
a0d0e21e 2411}
7627e6d0 2412#endif
a0d0e21e
LW		 2413
2414PP(pp_sockpair)
2415{
c95c94b1 2416#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
97aff369 2417 dVAR; dSP;
7452cf6a
AL		 2418 const int protocol = POPi;
2419 const int type = POPi;
2420 const int domain = POPi;
159b6efe
NC		 2421 GV * const gv2 = MUTABLE_GV(POPs);
2422 GV * const gv1 = MUTABLE_GV(POPs);
7452cf6a
AL		 2423 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2424 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
a0d0e21e
LW		 2425 int fd[2];
2426
9c9f25b8
NC		 2427 if (!io1)
2428 report_evil_fh(gv1);
2429 if (!io2)
2430 report_evil_fh(gv2);
a0d0e21e 2431
46d2cc54 2432 if (io1 && IoIFP(io1))
dc0d0a5f 2433 do_close(gv1, FALSE);
46d2cc54 2434 if (io2 && IoIFP(io2))
dc0d0a5f 2435 do_close(gv2, FALSE);
57171420 2436
46d2cc54
NC		 2437 if (!io1 || !io2)
2438 RETPUSHUNDEF;
2439
a0d0e21e 2440 TAINT_PROPER("socketpair");
6ad3d225 2441 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2442 RETPUSHUNDEF;
460c8493
IZ		 2443 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2444 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2445 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2446 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2447 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2448 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2449 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2450 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2451 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2452 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2453 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2454 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2455 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2456 RETPUSHUNDEF;
2457 }
8d2a6795
GS		 2458#if defined(HAS_FCNTL) && defined(F_SETFD)
2459 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2460 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2461#endif
a0d0e21e
LW		 2462
2463 RETPUSHYES;
2464#else
cea2e8a9 2465 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2466#endif
2467}
2468
7627e6d0
NC		 2469#ifdef HAS_SOCKET
2470
a0d0e21e
LW		 2471PP(pp_bind)
2472{
97aff369 2473 dVAR; dSP;
7452cf6a 2474 SV * const addrsv = POPs;
349d4f2f
NC		 2475 /* OK, so on what platform does bind modify addr? */
2476 const char *addr;
159b6efe 2477 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2478 register IO * const io = GvIOn(gv);
a0d0e21e 2479 STRLEN len;
32b81f04 2480 const int op_type = PL_op->op_type;
a0d0e21e
LW		 2481
2482 if (!io || !IoIFP(io))
2483 goto nuts;
2484
349d4f2f 2485 addr = SvPV_const(addrsv, len);
32b81f04
NC		 2486 TAINT_PROPER(PL_op_desc[op_type]);
2487 if ((op_type == OP_BIND
2488 ? PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len)
2489 : PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len))
2490 >= 0)
a0d0e21e
LW		 2491 RETPUSHYES;
2492 else
2493 RETPUSHUNDEF;
2494
2495nuts:
fbcda526 2496 report_evil_fh(gv);
93189314 2497 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2498 RETPUSHUNDEF;
a0d0e21e
LW		 2499}
2500
2501PP(pp_listen)
2502{
97aff369 2503 dVAR; dSP;
7452cf6a 2504 const int backlog = POPi;
159b6efe 2505 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2506 register IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2507
9c9f25b8 2508 if (!io || !IoIFP(io))
a0d0e21e
LW		 2509 goto nuts;
2510
6ad3d225 2511 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2512 RETPUSHYES;
2513 else
2514 RETPUSHUNDEF;
2515
2516nuts:
fbcda526 2517 report_evil_fh(gv);
93189314 2518 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2519 RETPUSHUNDEF;
a0d0e21e
LW		 2520}
2521
2522PP(pp_accept)
2523{
97aff369 2524 dVAR; dSP; dTARGET;
a0d0e21e
LW		 2525 register IO *nstio;
2526 register IO *gstio;
93d47a36
JH		 2527 char namebuf[MAXPATHLEN];
2528#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2529 Sock_size_t len = sizeof (struct sockaddr_in);
2530#else
2531 Sock_size_t len = sizeof namebuf;
2532#endif
159b6efe
NC		 2533 GV * const ggv = MUTABLE_GV(POPs);
2534 GV * const ngv = MUTABLE_GV(POPs);
a0d0e21e
LW		 2535 int fd;
2536
a0d0e21e
LW		 2537 if (!ngv)
2538 goto badexit;
2539 if (!ggv)
2540 goto nuts;
2541
2542 gstio = GvIO(ggv);
2543 if (!gstio || !IoIFP(gstio))
2544 goto nuts;
2545
2546 nstio = GvIOn(ngv);
93d47a36 2547 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
e294cc5d
JH		 2548#if defined(OEMVS)
2549 if (len == 0) {
2550 /* Some platforms indicate zero length when an AF_UNIX client is
2551 * not bound. Simulate a non-zero-length sockaddr structure in
2552 * this case. */
2553 namebuf[0] = 0; /* sun_len */
2554 namebuf[1] = AF_UNIX; /* sun_family */
2555 len = 2;
2556 }
2557#endif
2558
a0d0e21e
LW		 2559 if (fd < 0)
2560 goto badexit;
a70048fb
AB		 2561 if (IoIFP(nstio))
2562 do_close(ngv, FALSE);
460c8493
IZ		 2563 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2564 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2565 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2566 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2567 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2568 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2569 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2570 goto badexit;
2571 }
8d2a6795
GS		 2572#if defined(HAS_FCNTL) && defined(F_SETFD)
2573 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2574#endif
a0d0e21e 2575
ed79a026 2576#ifdef EPOC
93d47a36 2577 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2578 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2579#endif
381c1bae 2580#ifdef __SCO_VERSION__
93d47a36 2581 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2582#endif
ed79a026 2583
93d47a36 2584 PUSHp(namebuf, len);
a0d0e21e
LW		 2585 RETURN;
2586
2587nuts:
fbcda526 2588 report_evil_fh(ggv);
93189314 2589 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2590
2591badexit:
2592 RETPUSHUNDEF;
2593
a0d0e21e
LW		 2594}
2595
2596PP(pp_shutdown)
2597{
97aff369 2598 dVAR; dSP; dTARGET;
7452cf6a 2599 const int how = POPi;
159b6efe 2600 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2601 register IO * const io = GvIOn(gv);
a0d0e21e
LW		 2602
2603 if (!io || !IoIFP(io))
2604 goto nuts;
2605
6ad3d225 2606 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2607 RETURN;
2608
2609nuts:
fbcda526 2610 report_evil_fh(gv);
93189314 2611 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2612 RETPUSHUNDEF;
a0d0e21e
LW		 2613}
2614
a0d0e21e
LW		 2615PP(pp_ssockopt)
2616{
97aff369 2617 dVAR; dSP;
7452cf6a 2618 const int optype = PL_op->op_type;
561b68a9 2619 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
7452cf6a
AL		 2620 const unsigned int optname = (unsigned int) POPi;
2621 const unsigned int lvl = (unsigned int) POPi;
159b6efe 2622 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2623 register IO * const io = GvIOn(gv);
a0d0e21e 2624 int fd;
1e422769 2625 Sock_size_t len;
a0d0e21e 2626
a0d0e21e
LW		 2627 if (!io || !IoIFP(io))
2628 goto nuts;
2629
760ac839 2630 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2631 switch (optype) {
2632 case OP_GSOCKOPT:
748a9306 2633 SvGROW(sv, 257);
a0d0e21e 2634 (void)SvPOK_only(sv);
748a9306
LW		 2635 SvCUR_set(sv,256);
2636 *SvEND(sv) ='\0';
1e422769 2637 len = SvCUR(sv);
6ad3d225 2638 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2639 goto nuts2;
1e422769 2640 SvCUR_set(sv, len);
748a9306 2641 *SvEND(sv) ='\0';
a0d0e21e
LW		 2642 PUSHs(sv);
2643 break;
2644 case OP_SSOCKOPT: {
1215b447
JH		 2645#if defined(__SYMBIAN32__)
2646# define SETSOCKOPT_OPTION_VALUE_T void *
2647#else
2648# define SETSOCKOPT_OPTION_VALUE_T const char *
2649#endif
2650 /* XXX TODO: We need to have a proper type (a Configure probe,
2651 * etc.) for what the C headers think of the third argument of
2652 * setsockopt(), the option_value read-only buffer: is it
2653 * a "char *", or a "void *", const or not. Some compilers
2654 * don't take kindly to e.g. assuming that "char *" implicitly
2655 * promotes to a "void *", or to explicitly promoting/demoting
2656 * consts to non/vice versa. The "const void *" is the SUS
2657 * definition, but that does not fly everywhere for the above
2658 * reasons. */
2659 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769 2660 int aint;
2661 if (SvPOKp(sv)) {
2d8e6c8d 2662 STRLEN l;
1215b447 2663 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2664 len = l;
1e422769 2665 }
56ee1660 2666 else {
a0d0e21e 2667 aint = (int)SvIV(sv);
1215b447 2668 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW		 2669 len = sizeof(int);
2670 }
6ad3d225 2671 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2672 goto nuts2;
3280af22 2673 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2674 }
2675 break;
2676 }
2677 RETURN;
2678
2679nuts:
fbcda526 2680 report_evil_fh(gv);
93189314 2681 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2682nuts2:
2683 RETPUSHUNDEF;
2684
a0d0e21e
LW		 2685}
2686
a0d0e21e
LW		 2687PP(pp_getpeername)
2688{
97aff369 2689 dVAR; dSP;
7452cf6a 2690 const int optype = PL_op->op_type;
159b6efe 2691 GV * const gv = MUTABLE_GV(POPs);
7452cf6a
AL		 2692 register IO * const io = GvIOn(gv);
2693 Sock_size_t len;
a0d0e21e
LW		 2694 SV *sv;
2695 int fd;
a0d0e21e
LW		 2696
2697 if (!io || !IoIFP(io))
2698 goto nuts;
2699
561b68a9 2700 sv = sv_2mortal(newSV(257));
748a9306 2701 (void)SvPOK_only(sv);
1e422769 2702 len = 256;
2703 SvCUR_set(sv, len);
748a9306 2704 *SvEND(sv) ='\0';
760ac839 2705 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2706 switch (optype) {
2707 case OP_GETSOCKNAME:
6ad3d225 2708 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2709 goto nuts2;
2710 break;
2711 case OP_GETPEERNAME:
6ad3d225 2712 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2713 goto nuts2;
490ab354
JH		 2714#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2715 {
2716 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";
2717 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2718 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2719 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2720 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2721 goto nuts2;
490ab354
JH		 2722 }
2723 }
2724#endif
a0d0e21e
LW		 2725 break;
2726 }
13826f2c
CS		 2727#ifdef BOGUS_GETNAME_RETURN
2728 /* Interactive Unix, getpeername() and getsockname()
2729 does not return valid namelen */
1e422769 2730 if (len == BOGUS_GETNAME_RETURN)
2731 len = sizeof(struct sockaddr);
13826f2c 2732#endif
1e422769 2733 SvCUR_set(sv, len);
748a9306 2734 *SvEND(sv) ='\0';
a0d0e21e
LW		 2735 PUSHs(sv);
2736 RETURN;
2737
2738nuts:
fbcda526 2739 report_evil_fh(gv);
93189314 2740 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2741nuts2:
2742 RETPUSHUNDEF;
7627e6d0 2743}
a0d0e21e 2744
a0d0e21e 2745#endif
a0d0e21e
LW		 2746
2747/* Stat calls. */
2748
a0d0e21e
LW		 2749PP(pp_stat)
2750{
97aff369 2751 dVAR;
39644a26 2752 dSP;
10edeb5d 2753 GV *gv = NULL;
ad02613c 2754 IO *io;
54310121 2755 I32 gimme;
a0d0e21e
LW		 2756 I32 max = 13;
2757
533c011a 2758 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2759 gv = cGVOP_gv;
8a4e5b40 2760 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2761 if (gv != PL_defgv) {
5d329e6e 2762 do_fstat_warning_check:
a2a5de95
NC		 2763 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
2764 "lstat() on filehandle %s", gv ? GvENAME(gv) : "");
5d3e98de 2765 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2766 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2767 }
2768
748a9306 2769 do_fstat:
2dd78f96 2770 if (gv != PL_defgv) {
3280af22 2771 PL_laststype = OP_STAT;
2dd78f96 2772 PL_statgv = gv;
76f68e9b 2773 sv_setpvs(PL_statname, "");
5228a96c 2774 if(gv) {
ad02613c
SP		 2775 io = GvIO(gv);
2776 do_fstat_have_io:
5228a96c
SP		 2777 if (io) {
2778 if (IoIFP(io)) {
2779 PL_laststatval =
2780 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2781 } else if (IoDIRP(io)) {
5228a96c 2782 PL_laststatval =
3497a01f 2783 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
5228a96c
SP		 2784 } else {
2785 PL_laststatval = -1;
2786 }
2787 }
2788 }
2789 }
2790
9ddeeac9 2791 if (PL_laststatval < 0) {
51087808 2792 report_evil_fh(gv);
a0d0e21e 2793 max = 0;
9ddeeac9 2794 }
a0d0e21e
LW		 2795 }
2796 else {
7452cf6a 2797 SV* const sv = POPs;
6e592b3a 2798 if (isGV_with_GP(sv)) {
159b6efe 2799 gv = MUTABLE_GV(sv);
748a9306 2800 goto do_fstat;
6e592b3a 2801 } else if(SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 2802 gv = MUTABLE_GV(SvRV(sv));
ad02613c
SP		 2803 if (PL_op->op_type == OP_LSTAT)
2804 goto do_fstat_warning_check;
2805 goto do_fstat;
2806 } else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2807 io = MUTABLE_IO(SvRV(sv));
ad02613c
SP		 2808 if (PL_op->op_type == OP_LSTAT)
2809 goto do_fstat_warning_check;
2810 goto do_fstat_have_io;
2811 }
2812
0510663f 2813 sv_setpv(PL_statname, SvPV_nolen_const(sv));
a0714e2c 2814 PL_statgv = NULL;
533c011a
NIS		 2815 PL_laststype = PL_op->op_type;
2816 if (PL_op->op_type == OP_LSTAT)
0510663f 2817 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2818 else
0510663f 2819 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2820 if (PL_laststatval < 0) {
0510663f 2821 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2822 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2823 max = 0;
2824 }
2825 }
2826
54310121 2827 gimme = GIMME_V;
2828 if (gimme != G_ARRAY) {
2829 if (gimme != G_VOID)
2830 XPUSHs(boolSV(max));
2831 RETURN;
a0d0e21e
LW		 2832 }
2833 if (max) {
36477c24 2834 EXTEND(SP, max);
2835 EXTEND_MORTAL(max);
6e449a3a
MHM		 2836 mPUSHi(PL_statcache.st_dev);
2837 mPUSHi(PL_statcache.st_ino);
2838 mPUSHu(PL_statcache.st_mode);
2839 mPUSHu(PL_statcache.st_nlink);
146174a9 2840#if Uid_t_size > IVSIZE
6e449a3a 2841 mPUSHn(PL_statcache.st_uid);
146174a9 2842#else
23dcd6c8 2843# if Uid_t_sign <= 0
6e449a3a 2844 mPUSHi(PL_statcache.st_uid);
23dcd6c8 2845# else
6e449a3a 2846 mPUSHu(PL_statcache.st_uid);
23dcd6c8 2847# endif
146174a9 2848#endif
301e8125 2849#if Gid_t_size > IVSIZE
6e449a3a 2850 mPUSHn(PL_statcache.st_gid);
146174a9 2851#else
23dcd6c8 2852# if Gid_t_sign <= 0
6e449a3a 2853 mPUSHi(PL_statcache.st_gid);
23dcd6c8 2854# else
6e449a3a 2855 mPUSHu(PL_statcache.st_gid);
23dcd6c8 2856# endif
146174a9 2857#endif
cbdc8872 2858#ifdef USE_STAT_RDEV
6e449a3a 2859 mPUSHi(PL_statcache.st_rdev);
cbdc8872 2860#else
84bafc02 2861 PUSHs(newSVpvs_flags("", SVs_TEMP));
cbdc8872 2862#endif
146174a9 2863#if Off_t_size > IVSIZE
6e449a3a 2864 mPUSHn(PL_statcache.st_size);
146174a9 2865#else
6e449a3a 2866 mPUSHi(PL_statcache.st_size);
146174a9 2867#endif
cbdc8872 2868#ifdef BIG_TIME
6e449a3a
MHM		 2869 mPUSHn(PL_statcache.st_atime);
2870 mPUSHn(PL_statcache.st_mtime);
2871 mPUSHn(PL_statcache.st_ctime);
cbdc8872 2872#else
6e449a3a
MHM		 2873 mPUSHi(PL_statcache.st_atime);
2874 mPUSHi(PL_statcache.st_mtime);
2875 mPUSHi(PL_statcache.st_ctime);
cbdc8872 2876#endif
a0d0e21e 2877#ifdef USE_STAT_BLOCKS
6e449a3a
MHM		 2878 mPUSHu(PL_statcache.st_blksize);
2879 mPUSHu(PL_statcache.st_blocks);
a0d0e21e 2880#else
84bafc02
NC		 2881 PUSHs(newSVpvs_flags("", SVs_TEMP));
2882 PUSHs(newSVpvs_flags("", SVs_TEMP));
a0d0e21e
LW		 2883#endif
2884 }
2885 RETURN;
2886}
2887
6f1401dc
DM		 2888#define tryAMAGICftest_MG(chr) STMT_START { \
2889 if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \
2890 && S_try_amagic_ftest(aTHX_ chr)) \
2891 return NORMAL; \
2892 } STMT_END
2893
2894STATIC bool
2895S_try_amagic_ftest(pTHX_ char chr) {
2896 dVAR;
2897 dSP;
2898 SV* const arg = TOPs;
2899
2900 assert(chr != '?');
2901 SvGETMAGIC(arg);
2902
2903 if ((PL_op->op_flags & OPf_KIDS)
2904 && SvAMAGIC(TOPs))
2905 {
2906 const char tmpchr = chr;
2907 const OP *next;
2908 SV * const tmpsv = amagic_call(arg,
2909 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
2910 ftest_amg, AMGf_unary);
2911
2912 if (!tmpsv)
2913 return FALSE;
2914
2915 SPAGAIN;
2916
bbd91306 2917 if (PL_op->op_private & OPpFT_STACKING) {
6f1401dc
DM		 2918 if (SvTRUE(tmpsv))
2919 /* leave the object alone */
2920 return TRUE;
2921 }
2922
2923 SETs(tmpsv);
2924 PUTBACK;
2925 return TRUE;
2926 }
2927 return FALSE;
2928}
2929
2930
fbb0b3b3
RGS		 2931/* This macro is used by the stacked filetest operators :
2932 * if the previous filetest failed, short-circuit and pass its value.
2933 * Else, discard it from the stack and continue. --rgs
2934 */
2935#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
d724f706 2936 if (!SvTRUE(TOPs)) { RETURN; } \
fbb0b3b3
RGS		 2937 else { (void)POPs; PUTBACK; } \
2938 }
2939
a0d0e21e
LW		 2940PP(pp_ftrread)
2941{
97aff369 2942 dVAR;
9cad6237 2943 I32 result;
af9e49b4
NC		 2944 /* Not const, because things tweak this below. Not bool, because there's
2945 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2946#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2947 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2948 /* Giving some sort of initial value silences compilers. */
2949# ifdef R_OK
2950 int access_mode = R_OK;
2951# else
2952 int access_mode = 0;
2953# endif
5ff3f7a4 2954#else
af9e49b4
NC		 2955 /* access_mode is never used, but leaving use_access in makes the
2956 conditional compiling below much clearer. */
2957 I32 use_access = 0;
5ff3f7a4 2958#endif
2dcac756 2959 Mode_t stat_mode = S_IRUSR;
a0d0e21e 2960
af9e49b4 2961 bool effective = FALSE;
07fe7c6a 2962 char opchar = '?';
2a3ff820 2963 dSP;
af9e49b4 2964
7fb13887
BM		 2965 switch (PL_op->op_type) {
2966 case OP_FTRREAD: opchar = 'R'; break;
2967 case OP_FTRWRITE: opchar = 'W'; break;
2968 case OP_FTREXEC: opchar = 'X'; break;
2969 case OP_FTEREAD: opchar = 'r'; break;
2970 case OP_FTEWRITE: opchar = 'w'; break;
2971 case OP_FTEEXEC: opchar = 'x'; break;
2972 }
6f1401dc 2973 tryAMAGICftest_MG(opchar);
7fb13887 2974
fbb0b3b3 2975 STACKED_FTEST_CHECK;
af9e49b4
NC		 2976
2977 switch (PL_op->op_type) {
2978 case OP_FTRREAD:
2979#if !(defined(HAS_ACCESS) && defined(R_OK))
2980 use_access = 0;
2981#endif
2982 break;
2983
2984 case OP_FTRWRITE:
5ff3f7a4 2985#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 2986 access_mode = W_OK;
5ff3f7a4 2987#else
af9e49b4 2988 use_access = 0;
5ff3f7a4 2989#endif
af9e49b4
NC		 2990 stat_mode = S_IWUSR;
2991 break;
a0d0e21e 2992
af9e49b4 2993 case OP_FTREXEC:
5ff3f7a4 2994#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 2995 access_mode = X_OK;
5ff3f7a4 2996#else
af9e49b4 2997 use_access = 0;
5ff3f7a4 2998#endif
af9e49b4
NC		 2999 stat_mode = S_IXUSR;
3000 break;
a0d0e21e 3001
af9e49b4 3002 case OP_FTEWRITE:
faee0e31 3003#ifdef PERL_EFF_ACCESS
af9e49b4 3004 access_mode = W_OK;
5ff3f7a4 3005#endif
af9e49b4 3006 stat_mode = S_IWUSR;
7fb13887 3007 /* fall through */
a0d0e21e 3008
af9e49b4
NC		 3009 case OP_FTEREAD:
3010#ifndef PERL_EFF_ACCESS
3011 use_access = 0;
3012#endif
3013 effective = TRUE;
3014 break;
3015
af9e49b4 3016 case OP_FTEEXEC:
faee0e31 3017#ifdef PERL_EFF_ACCESS
b376053d 3018 access_mode = X_OK;
5ff3f7a4 3019#else
af9e49b4 3020 use_access = 0;
5ff3f7a4 3021#endif
af9e49b4
NC		 3022 stat_mode = S_IXUSR;
3023 effective = TRUE;
3024 break;
3025 }
a0d0e21e 3026
af9e49b4
NC		 3027 if (use_access) {
3028#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2c2f35ab 3029 const char *name = POPpx;
af9e49b4
NC		 3030 if (effective) {
3031# ifdef PERL_EFF_ACCESS
3032 result = PERL_EFF_ACCESS(name, access_mode);
3033# else
3034 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3035 OP_NAME(PL_op));
3036# endif
3037 }
3038 else {
3039# ifdef HAS_ACCESS
3040 result = access(name, access_mode);
3041# else
3042 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3043# endif
3044 }
5ff3f7a4
GS		 3045 if (result == 0)
3046 RETPUSHYES;
3047 if (result < 0)
3048 RETPUSHUNDEF;
3049 RETPUSHNO;
af9e49b4 3050#endif
22865c03 3051 }
af9e49b4 3052
40c852de 3053 result = my_stat_flags(0);
22865c03 3054 SPAGAIN;
a0d0e21e
LW		 3055 if (result < 0)
3056 RETPUSHUNDEF;
af9e49b4 3057 if (cando(stat_mode, effective, &PL_statcache))
a0d0e21e
LW		 3058 RETPUSHYES;
3059 RETPUSHNO;
3060}
3061
3062PP(pp_ftis)
3063{
97aff369 3064 dVAR;
fbb0b3b3 3065 I32 result;
d7f0a2f4 3066 const int op_type = PL_op->op_type;
07fe7c6a 3067 char opchar = '?';
2a3ff820 3068 dSP;
07fe7c6a
BM		 3069
3070 switch (op_type) {
3071 case OP_FTIS: opchar = 'e'; break;
3072 case OP_FTSIZE: opchar = 's'; break;
3073 case OP_FTMTIME: opchar = 'M'; break;
3074 case OP_FTCTIME: opchar = 'C'; break;
3075 case OP_FTATIME: opchar = 'A'; break;
3076 }
6f1401dc 3077 tryAMAGICftest_MG(opchar);
07fe7c6a 3078
fbb0b3b3 3079 STACKED_FTEST_CHECK;
7fb13887 3080
40c852de 3081 result = my_stat_flags(0);
fbb0b3b3 3082 SPAGAIN;
a0d0e21e
LW		 3083 if (result < 0)
3084 RETPUSHUNDEF;
d7f0a2f4
NC		 3085 if (op_type == OP_FTIS)
3086 RETPUSHYES;
957b0e1d 3087 {
d7f0a2f4
NC		 3088 /* You can't dTARGET inside OP_FTIS, because you'll get
3089 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3090 dTARGET;
d7f0a2f4 3091 switch (op_type) {
957b0e1d
NC		 3092 case OP_FTSIZE:
3093#if Off_t_size > IVSIZE
3094 PUSHn(PL_statcache.st_size);
3095#else
3096 PUSHi(PL_statcache.st_size);
3097#endif
3098 break;
3099 case OP_FTMTIME:
3100 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3101 break;
3102 case OP_FTATIME:
3103 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3104 break;
3105 case OP_FTCTIME:
3106 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3107 break;
3108 }
3109 }
3110 RETURN;
a0d0e21e
LW		 3111}
3112
a0d0e21e
LW		 3113PP(pp_ftrowned)
3114{
97aff369 3115 dVAR;
fbb0b3b3 3116 I32 result;
07fe7c6a 3117 char opchar = '?';
2a3ff820 3118 dSP;
17ad201a 3119
7fb13887
BM		 3120 switch (PL_op->op_type) {
3121 case OP_FTROWNED: opchar = 'O'; break;
3122 case OP_FTEOWNED: opchar = 'o'; break;
3123 case OP_FTZERO: opchar = 'z'; break;
3124 case OP_FTSOCK: opchar = 'S'; break;
3125 case OP_FTCHR: opchar = 'c'; break;
3126 case OP_FTBLK: opchar = 'b'; break;
3127 case OP_FTFILE: opchar = 'f'; break;
3128 case OP_FTDIR: opchar = 'd'; break;
3129 case OP_FTPIPE: opchar = 'p'; break;
3130 case OP_FTSUID: opchar = 'u'; break;
3131 case OP_FTSGID: opchar = 'g'; break;
3132 case OP_FTSVTX: opchar = 'k'; break;
3133 }
6f1401dc 3134 tryAMAGICftest_MG(opchar);
7fb13887 3135
1b0124a7
JD		 3136 STACKED_FTEST_CHECK;
3137
17ad201a
NC		 3138 /* I believe that all these three are likely to be defined on most every
3139 system these days. */
3140#ifndef S_ISUID
c410dd6a 3141 if(PL_op->op_type == OP_FTSUID) {
1b0124a7
JD		 3142 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3143 (void) POPs;
17ad201a 3144 RETPUSHNO;
c410dd6a 3145 }
17ad201a
NC		 3146#endif
3147#ifndef S_ISGID
c410dd6a 3148 if(PL_op->op_type == OP_FTSGID) {
1b0124a7
JD		 3149 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3150 (void) POPs;
17ad201a 3151 RETPUSHNO;
c410dd6a 3152 }
17ad201a
NC		 3153#endif
3154#ifndef S_ISVTX
c410dd6a 3155 if(PL_op->op_type == OP_FTSVTX) {
1b0124a7
JD		 3156 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3157 (void) POPs;
17ad201a 3158 RETPUSHNO;
c410dd6a 3159 }
17ad201a
NC		 3160#endif
3161
40c852de 3162 result = my_stat_flags(0);
fbb0b3b3 3163 SPAGAIN;
a0d0e21e
LW		 3164 if (result < 0)
3165 RETPUSHUNDEF;
f1cb2d48
NC		 3166 switch (PL_op->op_type) {
3167 case OP_FTROWNED:
9ab9fa88 3168 if (PL_statcache.st_uid == PL_uid)
f1cb2d48
NC		 3169 RETPUSHYES;
3170 break;
3171 case OP_FTEOWNED:
3172 if (PL_statcache.st_uid == PL_euid)
3173 RETPUSHYES;
3174 break;
3175 case OP_FTZERO:
3176 if (PL_statcache.st_size == 0)
3177 RETPUSHYES;
3178 break;
3179 case OP_FTSOCK:
3180 if (S_ISSOCK(PL_statcache.st_mode))
3181 RETPUSHYES;
3182 break;
3183 case OP_FTCHR:
3184 if (S_ISCHR(PL_statcache.st_mode))
3185 RETPUSHYES;
3186 break;
3187 case OP_FTBLK:
3188 if (S_ISBLK(PL_statcache.st_mode))
3189 RETPUSHYES;
3190 break;
3191 case OP_FTFILE:
3192 if (S_ISREG(PL_statcache.st_mode))
3193 RETPUSHYES;
3194 break;
3195 case OP_FTDIR:
3196 if (S_ISDIR(PL_statcache.st_mode))
3197 RETPUSHYES;
3198 break;
3199 case OP_FTPIPE:
3200 if (S_ISFIFO(PL_statcache.st_mode))
3201 RETPUSHYES;
3202 break;
a0d0e21e 3203#ifdef S_ISUID
17ad201a
NC		 3204 case OP_FTSUID:
3205 if (PL_statcache.st_mode & S_ISUID)
3206 RETPUSHYES;
3207 break;
a0d0e21e 3208#endif
a0d0e21e 3209#ifdef S_ISGID
17ad201a
NC		 3210 case OP_FTSGID:
3211 if (PL_statcache.st_mode & S_ISGID)
3212 RETPUSHYES;
3213 break;
3214#endif
3215#ifdef S_ISVTX
3216 case OP_FTSVTX:
3217 if (PL_statcache.st_mode & S_ISVTX)
3218 RETPUSHYES;
3219 break;
a0d0e21e 3220#endif
17ad201a 3221 }
a0d0e21e
LW		 3222 RETPUSHNO;
3223}
3224
17ad201a 3225PP(pp_ftlink)
a0d0e21e 3226{
97aff369 3227 dVAR;
39644a26 3228 dSP;
500ff13f 3229 I32 result;
07fe7c6a 3230
6f1401dc 3231 tryAMAGICftest_MG('l');
40c852de 3232 result = my_lstat_flags(0);
500ff13f
BM		 3233 SPAGAIN;
3234
a0d0e21e
LW		 3235 if (result < 0)
3236 RETPUSHUNDEF;
17ad201a 3237 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e 3238 RETPUSHYES;
a0d0e21e
LW		 3239 RETPUSHNO;
3240}
3241
3242PP(pp_fttty)
3243{
97aff369 3244 dVAR;
39644a26 3245 dSP;
a0d0e21e
LW		 3246 int fd;
3247 GV *gv;
a0714e2c 3248 SV *tmpsv = NULL;
0784aae0 3249 char *name = NULL;
40c852de 3250 STRLEN namelen;
fb73857a 3251
6f1401dc 3252 tryAMAGICftest_MG('t');
07fe7c6a 3253
fbb0b3b3
RGS		 3254 STACKED_FTEST_CHECK;
3255
533c011a 3256 if (PL_op->op_flags & OPf_REF)
146174a9 3257 gv = cGVOP_gv;
13be902c 3258 else if (isGV_with_GP(TOPs))
159b6efe 3259 gv = MUTABLE_GV(POPs);
fb73857a 3260 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3261 gv = MUTABLE_GV(SvRV(POPs));
40c852de
DM		 3262 else {
3263 tmpsv = POPs;
3264 name = SvPV_nomg(tmpsv, namelen);
3265 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
3266 }
fb73857a 3267
a0d0e21e 3268 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3269 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3270 else if (tmpsv && SvOK(tmpsv)) {
40c852de
DM		 3271 if (isDIGIT(*name))
3272 fd = atoi(name);
7a5fd60d
NC		 3273 else
3274 RETPUSHUNDEF;
3275 }
a0d0e21e
LW		 3276 else
3277 RETPUSHUNDEF;
6ad3d225 3278 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3279 RETPUSHYES;
3280 RETPUSHNO;
3281}
3282
16d20bd9
AD		 3283#if defined(atarist) /* this will work with atariST. Configure will
3284 make guesses for other systems. */
3285# define FILE_base(f) ((f)->_base)
3286# define FILE_ptr(f) ((f)->_ptr)
3287# define FILE_cnt(f) ((f)->_cnt)
3288# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3289#endif
3290
3291PP(pp_fttext)
3292{
97aff369 3293 dVAR;
39644a26 3294 dSP;
a0d0e21e
LW		 3295 I32 i;
3296 I32 len;
3297 I32 odd = 0;
3298 STDCHAR tbuf[512];
3299 register STDCHAR *s;
3300 register IO *io;
5f05dabc 3301 register SV *sv;
3302 GV *gv;
146174a9 3303 PerlIO *fp;
a0d0e21e 3304
6f1401dc 3305 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3306
fbb0b3b3
RGS		 3307 STACKED_FTEST_CHECK;
3308
533c011a 3309 if (PL_op->op_flags & OPf_REF)
146174a9 3310 gv = cGVOP_gv;
13be902c 3311 else if (isGV_with_GP(TOPs))
159b6efe 3312 gv = MUTABLE_GV(POPs);
5f05dabc 3313 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3314 gv = MUTABLE_GV(SvRV(POPs));
5f05dabc 3315 else
a0714e2c 3316 gv = NULL;
5f05dabc 3317
3318 if (gv) {
a0d0e21e 3319 EXTEND(SP, 1);
3280af22
NIS		 3320 if (gv == PL_defgv) {
3321 if (PL_statgv)
3322 io = GvIO(PL_statgv);
a0d0e21e 3323 else {
3280af22 3324 sv = PL_statname;
a0d0e21e
LW		 3325 goto really_filename;
3326 }
3327 }
3328 else {
3280af22
NIS		 3329 PL_statgv = gv;
3330 PL_laststatval = -1;
76f68e9b 3331 sv_setpvs(PL_statname, "");
3280af22 3332 io = GvIO(PL_statgv);
a0d0e21e
LW		 3333 }
3334 if (io && IoIFP(io)) {
5f05dabc 3335 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3336 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3337 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3338 if (PL_laststatval < 0)
5f05dabc 3339 RETPUSHUNDEF;
9cbac4c7 3340 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3341 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3342 RETPUSHNO;
3343 else
3344 RETPUSHYES;
9cbac4c7 3345 }
a20bf0c3 3346 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3347 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3348 if (i != EOF)
760ac839 3349 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3350 }
a20bf0c3 3351 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3352 RETPUSHYES;
a20bf0c3
JH		 3353 len = PerlIO_get_bufsiz(IoIFP(io));
3354 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3355 /* sfio can have large buffers - limit to 512 */
3356 if (len > 512)
3357 len = 512;
a0d0e21e
LW		 3358 }
3359 else {
51087808 3360 report_evil_fh(cGVOP_gv);
93189314 3361 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3362 RETPUSHUNDEF;
3363 }
3364 }
3365 else {
3366 sv = POPs;
5f05dabc 3367 really_filename:
a0714e2c 3368 PL_statgv = NULL;
5c9aa243 3369 PL_laststype = OP_STAT;
40c852de 3370 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
aa07b2f6 3371 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3372 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3373 '\n'))
9014280d 3374 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3375 RETPUSHUNDEF;
3376 }
146174a9
CB		 3377 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3378 if (PL_laststatval < 0) {
3379 (void)PerlIO_close(fp);
5f05dabc 3380 RETPUSHUNDEF;
146174a9 3381 }
bd61b366 3382 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
146174a9
CB		 3383 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3384 (void)PerlIO_close(fp);
a0d0e21e 3385 if (len <= 0) {
533c011a 3386 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3387 RETPUSHNO; /* special case NFS directories */
3388 RETPUSHYES; /* null file is anything */
3389 }
3390 s = tbuf;
3391 }
3392
3393 /* now scan s to look for textiness */
4633a7c4 3394 /* XXX ASCII dependent code */
a0d0e21e 3395
146174a9
CB		 3396#if defined(DOSISH) || defined(USEMYBINMODE)
3397 /* ignore trailing ^Z on short files */
58c0efa5 3398 if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
146174a9
CB		 3399 --len;
3400#endif
3401
a0d0e21e
LW		 3402 for (i = 0; i < len; i++, s++) {
3403 if (!*s) { /* null never allowed in text */
3404 odd += len;
3405 break;
3406 }
9d116dd7 3407#ifdef EBCDIC
301e8125 3408 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3409 odd++;
3410#else
146174a9
CB		 3411 else if (*s & 128) {
3412#ifdef USE_LOCALE
2de3dbcc 3413 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3414 continue;
3415#endif
3416 /* utf8 characters don't count as odd */
fd400ab9 3417 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3418 int ulen = UTF8SKIP(s);
3419 if (ulen < len - i) {
3420 int j;
3421 for (j = 1; j < ulen; j++) {
fd400ab9 3422 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3423 goto not_utf8;
3424 }
3425 --ulen; /* loop does extra increment */
3426 s += ulen;
3427 i += ulen;
3428 continue;
3429 }
3430 }
3431 not_utf8:
3432 odd++;
146174a9 3433 }
a0d0e21e
LW		 3434 else if (*s < 32 &&
3435 *s != '\n' && *s != '\r' && *s != '\b' &&
3436 *s != '\t' && *s != '\f' && *s != 27)
3437 odd++;
9d116dd7 3438#endif
a0d0e21e
LW		 3439 }
3440
533c011a 3441 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3442 RETPUSHNO;
3443 else
3444 RETPUSHYES;
3445}
3446
a0d0e21e
LW		 3447/* File calls. */
3448
3449PP(pp_chdir)
3450{
97aff369 3451 dVAR; dSP; dTARGET;
c445ea15 3452 const char *tmps = NULL;
9a957fbc 3453 GV *gv = NULL;
a0d0e21e 3454
c4aca7d0 3455 if( MAXARG == 1 ) {
9a957fbc 3456 SV * const sv = POPs;
d4ac975e
GA		 3457 if (PL_op->op_flags & OPf_SPECIAL) {
3458 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3459 }
6e592b3a 3460 else if (isGV_with_GP(sv)) {
159b6efe 3461 gv = MUTABLE_GV(sv);
c4aca7d0 3462 }
6e592b3a 3463 else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 3464 gv = MUTABLE_GV(SvRV(sv));
c4aca7d0
GA		 3465 }
3466 else {
4ea561bc 3467 tmps = SvPV_nolen_const(sv);
c4aca7d0
GA		 3468 }
3469 }
35ae6b54 3470
c4aca7d0 3471 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3472 HV * const table = GvHVn(PL_envgv);
3473 SV **svp;
3474
a4fc7abc
AL		 3475 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3476 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
491527d0 3477#ifdef VMS
a4fc7abc 3478 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
491527d0 3479#endif
35ae6b54
MS		 3480 )
3481 {
3482 if( MAXARG == 1 )
9014280d 3483 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3484 tmps = SvPV_nolen_const(*svp);
35ae6b54 3485 }
72f496dc 3486 else {
389ec635 3487 PUSHi(0);
b7ab37f8 3488 TAINT_PROPER("chdir");
389ec635
MS		 3489 RETURN;
3490 }
8ea155d1 3491 }
8ea155d1 3492
a0d0e21e 3493 TAINT_PROPER("chdir");
c4aca7d0
GA		 3494 if (gv) {
3495#ifdef HAS_FCHDIR
9a957fbc 3496 IO* const io = GvIO(gv);
c4aca7d0 3497 if (io) {
c08d6937 3498 if (IoDIRP(io)) {
3497a01f 3499 PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
c08d6937
SP		 3500 } else if (IoIFP(io)) {
3501 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
c4aca7d0
GA		 3502 }
3503 else {
51087808 3504 report_evil_fh(gv);
4dc171f0 3505 SETERRNO(EBADF, RMS_IFI);
c4aca7d0
GA		 3506 PUSHi(0);
3507 }
3508 }
3509 else {
51087808 3510 report_evil_fh(gv);
4dc171f0 3511 SETERRNO(EBADF,RMS_IFI);
c4aca7d0
GA		 3512 PUSHi(0);
3513 }
3514#else
3515 DIE(aTHX_ PL_no_func, "fchdir");
3516#endif
3517 }
3518 else
b8ffc8df 3519 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3520#ifdef VMS
3521 /* Clear the DEFAULT element of ENV so we'll get the new value
3522 * in the future. */
6b88bc9c 3523 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3524#endif
a0d0e21e
LW		 3525 RETURN;
3526}
3527
3528PP(pp_chown)
3529{
97aff369 3530 dVAR; dSP; dMARK; dTARGET;
605b9385 3531 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
76ffd3b9 3532
a0d0e21e 3533 SP = MARK;
b59aed67 3534 XPUSHi(value);
a0d0e21e 3535 RETURN;
a0d0e21e
LW		 3536}
3537
3538PP(pp_chroot)
3539{
a0d0e21e 3540#ifdef HAS_CHROOT
97aff369 3541 dVAR; dSP; dTARGET;
7452cf6a 3542 char * const tmps = POPpx;
a0d0e21e
LW		 3543 TAINT_PROPER("chroot");
3544 PUSHi( chroot(tmps) >= 0 );
3545 RETURN;
3546#else
cea2e8a9 3547 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3548#endif
3549}
3550
a0d0e21e
LW		 3551PP(pp_rename)
3552{
97aff369 3553 dVAR; dSP; dTARGET;
a0d0e21e 3554 int anum;
7452cf6a
AL		 3555 const char * const tmps2 = POPpconstx;
3556 const char * const tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3557 TAINT_PROPER("rename");
3558#ifdef HAS_RENAME
baed7233 3559 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3560#else
6b88bc9c 3561 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3562 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3563 anum = 1;
3564 else {
3654eb6c 3565 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3566 (void)UNLINK(tmps2);
3567 if (!(anum = link(tmps, tmps2)))
3568 anum = UNLINK(tmps);
3569 }
a0d0e21e
LW		 3570 }
3571#endif
3572 SETi( anum >= 0 );
3573 RETURN;
3574}
3575
ce6987d0 3576#if defined(HAS_LINK) || defined(HAS_SYMLINK)
a0d0e21e
LW		 3577PP(pp_link)
3578{
97aff369 3579 dVAR; dSP; dTARGET;
ce6987d0
NC		 3580 const int op_type = PL_op->op_type;
3581 int result;
a0d0e21e 3582
ce6987d0
NC		 3583# ifndef HAS_LINK
3584 if (op_type == OP_LINK)
3585 DIE(aTHX_ PL_no_func, "link");
3586# endif
3587# ifndef HAS_SYMLINK
3588 if (op_type == OP_SYMLINK)
3589 DIE(aTHX_ PL_no_func, "symlink");
3590# endif
3591
3592 {
7452cf6a
AL		 3593 const char * const tmps2 = POPpconstx;
3594 const char * const tmps = SvPV_nolen_const(TOPs);
ce6987d0
NC		 3595 TAINT_PROPER(PL_op_desc[op_type]);
3596 result =
3597# if defined(HAS_LINK)
3598# if defined(HAS_SYMLINK)
3599 /* Both present - need to choose which. */
3600 (op_type == OP_LINK) ?
3601 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3602# else
4a8ebb7f
SH		 3603 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3604 PerlLIO_link(tmps, tmps2);
ce6987d0
NC		 3605# endif
3606# else
3607# if defined(HAS_SYMLINK)
4a8ebb7f
SH		 3608 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3609 symlink(tmps, tmps2);
ce6987d0
NC		 3610# endif
3611# endif
3612 }
3613
3614 SETi( result >= 0 );
a0d0e21e 3615 RETURN;
ce6987d0 3616}
a0d0e21e 3617#else
ce6987d0
NC		 3618PP(pp_link)
3619{
3620 /* Have neither. */
3621 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 3622}
ce6987d0 3623#endif
a0d0e21e
LW		 3624
3625PP(pp_readlink)
3626{
97aff369 3627 dVAR;
76ffd3b9 3628 dSP;
a0d0e21e 3629#ifdef HAS_SYMLINK
76ffd3b9 3630 dTARGET;
10516c54 3631 const char *tmps;
46fc3d4c 3632 char buf[MAXPATHLEN];
a0d0e21e 3633 int len;
46fc3d4c 3634
fb73857a 3635#ifndef INCOMPLETE_TAINTS
3636 TAINT;
3637#endif
10516c54 3638 tmps = POPpconstx;
97dcea33 3639 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3640 if (len < 0)
3641 RETPUSHUNDEF;
3642 PUSHp(buf, len);
3643 RETURN;
3644#else
3645 EXTEND(SP, 1);
3646 RETSETUNDEF; /* just pretend it's a normal file */
3647#endif
3648}
3649
3650#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3651STATIC int
b464bac0 3652S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3653{
b464bac0 3654 char * const save_filename = filename;
1e422769 3655 char *cmdline;
3656 char *s;
760ac839 3657 PerlIO *myfp;
1e422769 3658 int anum = 1;
6fca0082 3659 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
a0d0e21e 3660
7918f24d
NC		 3661 PERL_ARGS_ASSERT_DOONELINER;
3662
6fca0082
SP		 3663 Newx(cmdline, size, char);
3664 my_strlcpy(cmdline, cmd, size);
3665 my_strlcat(cmdline, " ", size);
1e422769 3666 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3667 *s++ = '\\';
3668 *s++ = *filename++;
3669 }
d1307786
JH		 3670 if (s - cmdline < size)
3671 my_strlcpy(s, " 2>&1", size - (s - cmdline));
6ad3d225 3672 myfp = PerlProc_popen(cmdline, "r");
1e422769 3673 Safefree(cmdline);
3674
a0d0e21e 3675 if (myfp) {
0bcc34c2 3676 SV * const tmpsv = sv_newmortal();
6b88bc9c 3677 /* Need to save/restore 'PL_rs' ?? */
760ac839 3678 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3679 (void)PerlProc_pclose(myfp);
bd61b366 3680 if (s != NULL) {
1e422769 3681 int e;
3682 for (e = 1;
a0d0e21e 3683#ifdef HAS_SYS_ERRLIST
1e422769 3684 e <= sys_nerr
3685#endif
3686 ; e++)
3687 {
3688 /* you don't see this */
6136c704 3689 const char * const errmsg =
1e422769 3690#ifdef HAS_SYS_ERRLIST
3691 sys_errlist[e]
a0d0e21e 3692#else
1e422769 3693 strerror(e)
a0d0e21e 3694#endif
1e422769 3695 ;
3696 if (!errmsg)
3697 break;
3698 if (instr(s, errmsg)) {
3699 SETERRNO(e,0);
3700 return 0;
3701 }
a0d0e21e 3702 }
748a9306 3703 SETERRNO(0,0);
a0d0e21e
LW		 3704#ifndef EACCES
3705#define EACCES EPERM
3706#endif
1e422769 3707 if (instr(s, "cannot make"))
93189314 3708 SETERRNO(EEXIST,RMS_FEX);
1e422769 3709 else if (instr(s, "existing file"))
93189314 3710 SETERRNO(EEXIST,RMS_FEX);
1e422769 3711 else if (instr(s, "ile exists"))
93189314 3712 SETERRNO(EEXIST,RMS_FEX);
1e422769 3713 else if (instr(s, "non-exist"))
93189314 3714 SETERRNO(ENOENT,RMS_FNF);
1e422769 3715 else if (instr(s, "does not exist"))
93189314 3716 SETERRNO(ENOENT,RMS_FNF);
1e422769 3717 else if (instr(s, "not empty"))
93189314 3718 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3719 else if (instr(s, "cannot access"))
93189314 3720 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3721 else
93189314 3722 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3723 return 0;
3724 }
3725 else { /* some mkdirs return no failure indication */
6b88bc9c 3726 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3727 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3728 anum = !anum;
3729 if (anum)
748a9306 3730 SETERRNO(0,0);
a0d0e21e 3731 else
93189314 3732 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3733 }
3734 return anum;
3735 }
3736 else
3737 return 0;
3738}
3739#endif
3740
0c54f65b
RGS		 3741/* This macro removes trailing slashes from a directory name.
3742 * Different operating and file systems take differently to
3743 * trailing slashes. According to POSIX 1003.1 1996 Edition
3744 * any number of trailing slashes should be allowed.
3745 * Thusly we snip them away so that even non-conforming
3746 * systems are happy.
3747 * We should probably do this "filtering" for all
3748 * the functions that expect (potentially) directory names:
3749 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3750 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3751
5c144d81 3752#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3753 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3754 do { \
3755 (len)--; \
3756 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3757 (tmps) = savepvn((tmps), (len)); \
3758 (copy) = TRUE; \
3759 }
3760
a0d0e21e
LW		 3761PP(pp_mkdir)
3762{
97aff369 3763 dVAR; dSP; dTARGET;
df25ddba 3764 STRLEN len;
5c144d81 3765 const char *tmps;
df25ddba 3766 bool copy = FALSE;
7452cf6a 3767 const int mode = (MAXARG > 1) ? POPi : 0777;
5a211162 3768
0c54f65b 3769 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3770
3771 TAINT_PROPER("mkdir");
3772#ifdef HAS_MKDIR
b8ffc8df 3773 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e 3774#else
0bcc34c2
AL		 3775 {
3776 int oldumask;
a0d0e21e 3777 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3778 oldumask = PerlLIO_umask(0);
3779 PerlLIO_umask(oldumask);
3780 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
0bcc34c2 3781 }
a0d0e21e 3782#endif
df25ddba
JH		 3783 if (copy)
3784 Safefree(tmps);
a0d0e21e
LW		 3785 RETURN;
3786}
3787
3788PP(pp_rmdir)
3789{
97aff369 3790 dVAR; dSP; dTARGET;
0c54f65b 3791 STRLEN len;
5c144d81 3792 const char *tmps;
0c54f65b 3793 bool copy = FALSE;
a0d0e21e 3794
0c54f65b 3795 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3796 TAINT_PROPER("rmdir");
3797#ifdef HAS_RMDIR
b8ffc8df 3798 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3799#else
0c54f65b 3800 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3801#endif
0c54f65b
RGS		 3802 if (copy)
3803 Safefree(tmps);
a0d0e21e
LW		 3804 RETURN;
3805}
3806
3807/* Directory calls. */
3808
3809PP(pp_open_dir)
3810{
a0d0e21e 3811#if defined(Direntry_t) && defined(HAS_READDIR)
97aff369 3812 dVAR; dSP;
7452cf6a 3813 const char * const dirname = POPpconstx;
159b6efe 3814 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3815 register IO * const io = GvIOn(gv);
a0d0e21e
LW		 3816
3817 if (!io)
3818 goto nope;
3819
a2a5de95 3820 if ((IoIFP(io) || IoOFP(io)))
d1d15184
NC		 3821 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
3822 "Opening filehandle %s also as a directory",
3823 GvENAME(gv));
a0d0e21e 3824 if (IoDIRP(io))
6ad3d225 3825 PerlDir_close(IoDIRP(io));
b8ffc8df 3826 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3827 goto nope;
3828
3829 RETPUSHYES;
3830nope:
3831 if (!errno)
93189314 3832 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3833 RETPUSHUNDEF;
3834#else
cea2e8a9 3835 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3836#endif
3837}
3838
3839PP(pp_readdir)
3840{
34b7f128
AMS		 3841#if !defined(Direntry_t) || !defined(HAS_READDIR)
3842 DIE(aTHX_ PL_no_dir_func, "readdir");
3843#else
fd8cd3a3 3844#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3845 Direntry_t *readdir (DIR *);
a0d0e21e 3846#endif
97aff369 3847 dVAR;
34b7f128
AMS		 3848 dSP;
3849
3850 SV *sv;
f54cb97a 3851 const I32 gimme = GIMME;
159b6efe 3852 GV * const gv = MUTABLE_GV(POPs);
7452cf6a
AL		 3853 register const Direntry_t *dp;
3854 register IO * const io = GvIOn(gv);
a0d0e21e 3855
3b7fbd4a 3856 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3857 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3858 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3b7fbd4a
SP		 3859 goto nope;
3860 }
a0d0e21e 3861
34b7f128
AMS		 3862 do {
3863 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3864 if (!dp)
3865 break;
a0d0e21e 3866#ifdef DIRNAMLEN
34b7f128 3867 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3868#else
34b7f128 3869 sv = newSVpv(dp->d_name, 0);
fb73857a 3870#endif
3871#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3872 if (!(IoFLAGS(io) & IOf_UNTAINT))
3873 SvTAINTED_on(sv);
a0d0e21e 3874#endif
6e449a3a 3875 mXPUSHs(sv);
a79db61d 3876 } while (gimme == G_ARRAY);
34b7f128
AMS		 3877
3878 if (!dp && gimme != G_ARRAY)
3879 goto nope;
3880
a0d0e21e
LW		 3881 RETURN;
3882
3883nope:
3884 if (!errno)
93189314 3885 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3886 if (GIMME == G_ARRAY)
3887 RETURN;
3888 else
3889 RETPUSHUNDEF;
a0d0e21e
LW		 3890#endif
3891}
3892
3893PP(pp_telldir)
3894{
a0d0e21e 3895#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3896 dVAR; dSP; dTARGET;
968dcd91
JH		 3897 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3898 /* XXX netbsd still seemed to.
3899 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3900 --JHI 1999-Feb-02 */
3901# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3902 long telldir (DIR *);
dfe9444c 3903# endif
159b6efe 3904 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3905 register IO * const io = GvIOn(gv);
a0d0e21e 3906
abc7ecad 3907 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3908 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3909 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3910 goto nope;
3911 }
a0d0e21e 3912
6ad3d225 3913 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3914 RETURN;
3915nope:
3916 if (!errno)
93189314 3917 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3918 RETPUSHUNDEF;
3919#else
cea2e8a9 3920 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3921#endif
3922}
3923
3924PP(pp_seekdir)
3925{
a0d0e21e 3926#if defined(HAS_SEEKDIR) || defined(seekdir)
97aff369 3927 dVAR; dSP;
7452cf6a 3928 const long along = POPl;
159b6efe 3929 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3930 register IO * const io = GvIOn(gv);
a0d0e21e 3931
abc7ecad 3932 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3933 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3934 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3935 goto nope;
3936 }
6ad3d225 3937 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3938
3939 RETPUSHYES;
3940nope:
3941 if (!errno)
93189314 3942 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3943 RETPUSHUNDEF;
3944#else
cea2e8a9 3945 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3946#endif
3947}
3948
3949PP(pp_rewinddir)
3950{
a0d0e21e 3951#if defined(HAS_REWINDDIR) || defined(rewinddir)
97aff369 3952 dVAR; dSP;
159b6efe 3953 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3954 register IO * const io = GvIOn(gv);
a0d0e21e 3955
abc7ecad 3956 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3957 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3958 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
a0d0e21e 3959 goto nope;
abc7ecad 3960 }
6ad3d225 3961 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3962 RETPUSHYES;
3963nope:
3964 if (!errno)
93189314 3965 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3966 RETPUSHUNDEF;
3967#else
cea2e8a9 3968 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3969#endif
3970}
3971
3972PP(pp_closedir)
3973{
a0d0e21e 3974#if defined(Direntry_t) && defined(HAS_READDIR)
97aff369 3975 dVAR; dSP;
159b6efe 3976 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3977 register IO * const io = GvIOn(gv);
a0d0e21e 3978
abc7ecad 3979 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3980 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3981 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3982 goto nope;
3983 }
a0d0e21e 3984#ifdef VOID_CLOSEDIR
6ad3d225 3985 PerlDir_close(IoDIRP(io));
a0d0e21e 3986#else
6ad3d225 3987 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3988 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3989 goto nope;
748a9306 3990 }
a0d0e21e
LW		 3991#endif
3992 IoDIRP(io) = 0;
3993
3994 RETPUSHYES;
3995nope:
3996 if (!errno)
93189314 3997 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3998 RETPUSHUNDEF;
3999#else
cea2e8a9 4000 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4001#endif
4002}
4003
4004/* Process control. */
4005
4006PP(pp_fork)
4007{
44a8e56a 4008#ifdef HAS_FORK
97aff369 4009 dVAR; dSP; dTARGET;
761237fe 4010 Pid_t childpid;
a0d0e21e
LW		 4011
4012 EXTEND(SP, 1);
45bc9206 4013 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4014 childpid = PerlProc_fork();
a0d0e21e
LW		 4015 if (childpid < 0)
4016 RETSETUNDEF;
4017 if (!childpid) {
4d76a344
RGS		 4018#ifdef THREADS_HAVE_PIDS
4019 PL_ppid = (IV)getppid();
4020#endif
ca0c25f6 4021#ifdef PERL_USES_PL_PIDSTATUS
3280af22 4022 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
ca0c25f6 4023#endif
a0d0e21e
LW		 4024 }
4025 PUSHi(childpid);
4026 RETURN;
4027#else
146174a9 4028# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4029 dSP; dTARGET;
146174a9
CB		 4030 Pid_t childpid;
4031
4032 EXTEND(SP, 1);
4033 PERL_FLUSHALL_FOR_CHILD;
4034 childpid = PerlProc_fork();
60fa28ff
GS		 4035 if (childpid == -1)
4036 RETSETUNDEF;
146174a9
CB		 4037 PUSHi(childpid);
4038 RETURN;
4039# else
0322a713 4040 DIE(aTHX_ PL_no_func, "fork");
146174a9 4041# endif
a0d0e21e
LW		 4042#endif
4043}
4044
4045PP(pp_wait)
4046{
e37778c2 4047#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
97aff369 4048 dVAR; dSP; dTARGET;
761237fe 4049 Pid_t childpid;
a0d0e21e 4050 int argflags;
a0d0e21e 4051
4ffa73a3
JH		 4052 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4053 childpid = wait4pid(-1, &argflags, 0);
4054 else {
4055 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4056 errno == EINTR) {
4057 PERL_ASYNC_CHECK();
4058 }
0a0ada86 4059 }
68a29c53
GS		 4060# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4061 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4062 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4063# else
2fbb330f 4064 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4065# endif
44a8e56a 4066 XPUSHi(childpid);
a0d0e21e
LW		 4067 RETURN;
4068#else
0322a713 4069 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4070#endif
4071}
4072
4073PP(pp_waitpid)
4074{
e37778c2 4075#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
97aff369 4076 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4077 const int optype = POPi;
4078 const Pid_t pid = TOPi;
2ec0bfb3 4079 Pid_t result;
a0d0e21e 4080 int argflags;
a0d0e21e 4081
4ffa73a3 4082 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4083 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4084 else {
2ec0bfb3 4085 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4086 errno == EINTR) {
4087 PERL_ASYNC_CHECK();
4088 }
0a0ada86 4089 }
68a29c53
GS		 4090# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4091 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4092 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4093# else
2fbb330f 4094 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4095# endif
2ec0bfb3 4096 SETi(result);
a0d0e21e
LW		 4097 RETURN;
4098#else
0322a713 4099 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4100#endif
4101}
4102
4103PP(pp_system)
4104{
97aff369 4105 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
9c12f1e5
RGS		 4106#if defined(__LIBCATAMOUNT__)
4107 PL_statusvalue = -1;
4108 SP = ORIGMARK;
4109 XPUSHi(-1);
4110#else
a0d0e21e 4111 I32 value;
76ffd3b9 4112 int result;
a0d0e21e 4113
bbd7eb8a
RD		 4114 if (PL_tainting) {
4115 TAINT_ENV();
4116 while (++MARK <= SP) {
10516c54 4117 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4118 if (PL_tainted)
bbd7eb8a
RD		 4119 break;
4120 }
4121 MARK = ORIGMARK;
5a445156 4122 TAINT_PROPER("system");
a0d0e21e 4123 }
45bc9206 4124 PERL_FLUSHALL_FOR_CHILD;
273b0206 4125#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4126 {
eb160463
GS		 4127 Pid_t childpid;
4128 int pp[2];
27da23d5 4129 I32 did_pipes = 0;
eb160463
GS		 4130
4131 if (PerlProc_pipe(pp) >= 0)
4132 did_pipes = 1;
4133 while ((childpid = PerlProc_fork()) == -1) {
4134 if (errno != EAGAIN) {
4135 value = -1;
4136 SP = ORIGMARK;
b59aed67 4137 XPUSHi(value);
eb160463
GS		 4138 if (did_pipes) {
4139 PerlLIO_close(pp[0]);
4140 PerlLIO_close(pp[1]);
4141 }
4142 RETURN;
4143 }
4144 sleep(5);
4145 }
4146 if (childpid > 0) {
4147 Sigsave_t ihand,qhand; /* place to save signals during system() */
4148 int status;
4149
4150 if (did_pipes)
4151 PerlLIO_close(pp[1]);
64ca3a65 4152#ifndef PERL_MICRO
8aad04aa
JH		 4153 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4154 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4155#endif
eb160463
GS		 4156 do {
4157 result = wait4pid(childpid, &status, 0);
4158 } while (result == -1 && errno == EINTR);
64ca3a65 4159#ifndef PERL_MICRO
eb160463
GS		 4160 (void)rsignal_restore(SIGINT, &ihand);
4161 (void)rsignal_restore(SIGQUIT, &qhand);
4162#endif
37038d91 4163 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4164 do_execfree(); /* free any memory child malloced on fork */
4165 SP = ORIGMARK;
4166 if (did_pipes) {
4167 int errkid;
bb7a0f54
MHM		 4168 unsigned n = 0;
4169 SSize_t n1;
eb160463
GS		 4170
4171 while (n < sizeof(int)) {
4172 n1 = PerlLIO_read(pp[0],
4173 (void*)(((char*)&errkid)+n),
4174 (sizeof(int)) - n);
4175 if (n1 <= 0)
4176 break;
4177 n += n1;
4178 }
4179 PerlLIO_close(pp[0]);
4180 if (n) { /* Error */
4181 if (n != sizeof(int))
4182 DIE(aTHX_ "panic: kid popen errno read");
4183 errno = errkid; /* Propagate errno from kid */
37038d91 4184 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4185 }
4186 }
b59aed67 4187 XPUSHi(STATUS_CURRENT);
eb160463
GS		 4188 RETURN;
4189 }
4190 if (did_pipes) {
4191 PerlLIO_close(pp[0]);
d5a9bfb0 4192#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4193 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4194#endif
eb160463 4195 }
e0a1f643 4196 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4197 SV * const really = *++MARK;
e0a1f643
JH		 4198 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4199 }
4200 else if (SP - MARK != 1)
a0714e2c 4201 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
e0a1f643 4202 else {
8c074e2a 4203 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4204 }
4205 PerlProc__exit(-1);
d5a9bfb0 4206 }
c3293030 4207#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4208 PL_statusvalue = 0;
4209 result = 0;
911d147d 4210 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4211 SV * const really = *++MARK;
9ec7171b 4212# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
54725af6
GS		 4213 value = (I32)do_aspawn(really, MARK, SP);
4214# else
c5be433b 4215 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4216# endif
a0d0e21e 4217 }
54725af6 4218 else if (SP - MARK != 1) {
9ec7171b 4219# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
a0714e2c 4220 value = (I32)do_aspawn(NULL, MARK, SP);
54725af6 4221# else
a0714e2c 4222 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
54725af6
GS		 4223# endif
4224 }
a0d0e21e 4225 else {
8c074e2a 4226 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4227 }
922b1888
GS		 4228 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4229 result = 1;
2fbb330f 4230 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4231 do_execfree();
4232 SP = ORIGMARK;
b59aed67 4233 XPUSHi(result ? value : STATUS_CURRENT);
9c12f1e5
RGS		 4234#endif /* !FORK or VMS or OS/2 */
4235#endif
a0d0e21e
LW		 4236 RETURN;
4237}
4238
4239PP(pp_exec)
4240{
97aff369 4241 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4242 I32 value;
4243
bbd7eb8a
RD		 4244 if (PL_tainting) {
4245 TAINT_ENV();
4246 while (++MARK <= SP) {
10516c54 4247 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4248 if (PL_tainted)
bbd7eb8a
RD		 4249 break;
4250 }
4251 MARK = ORIGMARK;
5a445156 4252 TAINT_PROPER("exec");
bbd7eb8a 4253 }
45bc9206 4254 PERL_FLUSHALL_FOR_CHILD;
533c011a 4255 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4256 SV * const really = *++MARK;
a0d0e21e
LW		 4257 value = (I32)do_aexec(really, MARK, SP);
4258 }
4259 else if (SP - MARK != 1)
4260#ifdef VMS
a0714e2c 4261 value = (I32)vms_do_aexec(NULL, MARK, SP);
a0d0e21e 4262#else
092bebab
JH		 4263# ifdef __OPEN_VM
4264 {
a0714e2c 4265 (void ) do_aspawn(NULL, MARK, SP);
092bebab
JH		 4266 value = 0;
4267 }
4268# else
a0714e2c 4269 value = (I32)do_aexec(NULL, MARK, SP);
092bebab 4270# endif
a0d0e21e
LW		 4271#endif
4272 else {
a0d0e21e 4273#ifdef VMS
8c074e2a 4274 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4275#else
092bebab 4276# ifdef __OPEN_VM
8c074e2a 4277 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4278 value = 0;
4279# else
5dd60a52 4280 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4281# endif
a0d0e21e
LW		 4282#endif
4283 }
146174a9 4284
a0d0e21e 4285 SP = ORIGMARK;
b59aed67 4286 XPUSHi(value);
a0d0e21e
LW		 4287 RETURN;
4288}
4289
a0d0e21e
LW		 4290PP(pp_getppid)
4291{
4292#ifdef HAS_GETPPID
97aff369 4293 dVAR; dSP; dTARGET;
4d76a344 4294# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4295 if (PL_ppid != 1 && getppid() == 1)
4296 /* maybe the parent process has died. Refresh ppid cache */
4297 PL_ppid = 1;
4d76a344
RGS		 4298 XPUSHi( PL_ppid );
4299# else
a0d0e21e 4300 XPUSHi( getppid() );
4d76a344 4301# endif
a0d0e21e
LW		 4302 RETURN;
4303#else
cea2e8a9 4304 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4305#endif
4306}
4307
4308PP(pp_getpgrp)
4309{
4310#ifdef HAS_GETPGRP
97aff369 4311 dVAR; dSP; dTARGET;
9853a804 4312 Pid_t pgrp;
0bcc34c2 4313 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
a0d0e21e 4314
c3293030 4315#ifdef BSD_GETPGRP
9853a804 4316 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4317#else
146174a9 4318 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4319 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4320 pgrp = getpgrp();
a0d0e21e 4321#endif
9853a804 4322 XPUSHi(pgrp);
a0d0e21e
LW		 4323 RETURN;
4324#else
cea2e8a9 4325 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4326#endif
4327}
4328
4329PP(pp_setpgrp)
4330{
4331#ifdef HAS_SETPGRP
97aff369 4332 dVAR; dSP; dTARGET;
d8a83dd3
JH		 4333 Pid_t pgrp;
4334 Pid_t pid;
a0d0e21e
LW		 4335 if (MAXARG < 2) {
4336 pgrp = 0;
4337 pid = 0;
1f200948 4338 XPUSHi(-1);
a0d0e21e
LW		 4339 }
4340 else {
4341 pgrp = POPi;
4342 pid = TOPi;
4343 }
4344
4345 TAINT_PROPER("setpgrp");
c3293030
IZ		 4346#ifdef BSD_SETPGRP
4347 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4348#else
146174a9
CB		 4349 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4350 || (pid != 0 && pid != PerlProc_getpid()))
4351 {
4352 DIE(aTHX_ "setpgrp can't take arguments");
4353 }
a0d0e21e
LW		 4354 SETi( setpgrp() >= 0 );
4355#endif /* USE_BSDPGRP */
4356 RETURN;
4357#else
cea2e8a9 4358 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4359#endif
4360}
4361
8b079db6 4362#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (__GLIBC__ > 2))
5baa2e4f
RB		 4363# define PRIORITY_WHICH_T(which) (__priority_which_t)which
4364#else
4365# define PRIORITY_WHICH_T(which) which
4366#endif
4367
a0d0e21e
LW		 4368PP(pp_getpriority)
4369{
a0d0e21e 4370#ifdef HAS_GETPRIORITY
97aff369 4371 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4372 const int who = POPi;
4373 const int which = TOPi;
5baa2e4f 4374 SETi( getpriority(PRIORITY_WHICH_T(which), who) );
a0d0e21e
LW		 4375 RETURN;
4376#else
cea2e8a9 4377 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4378#endif
4379}
4380
4381PP(pp_setpriority)
4382{
a0d0e21e 4383#ifdef HAS_SETPRIORITY
97aff369 4384 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4385 const int niceval = POPi;
4386 const int who = POPi;
4387 const int which = TOPi;
a0d0e21e 4388 TAINT_PROPER("setpriority");
5baa2e4f 4389 SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 );
a0d0e21e
LW		 4390 RETURN;
4391#else
cea2e8a9 4392 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4393#endif
4394}
4395
5baa2e4f
RB		 4396#undef PRIORITY_WHICH_T
4397
a0d0e21e
LW		 4398/* Time calls. */
4399
4400PP(pp_time)
4401{
97aff369 4402 dVAR; dSP; dTARGET;
cbdc8872 4403#ifdef BIG_TIME
4608196e 4404 XPUSHn( time(NULL) );
cbdc8872 4405#else
4608196e 4406 XPUSHi( time(NULL) );
cbdc8872 4407#endif
a0d0e21e
LW		 4408 RETURN;
4409}
4410
a0d0e21e
LW		 4411PP(pp_tms)
4412{
9cad6237 4413#ifdef HAS_TIMES
97aff369 4414 dVAR;
39644a26 4415 dSP;
a0d0e21e 4416 EXTEND(SP, 4);
a0d0e21e 4417#ifndef VMS
3280af22 4418 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4419#else
6b88bc9c 4420 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4421 /* struct tms, though same data */
4422 /* is returned. */
a0d0e21e
LW		 4423#endif
4424
6e449a3a 4425 mPUSHn(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick);
a0d0e21e 4426 if (GIMME == G_ARRAY) {
6e449a3a
MHM		 4427 mPUSHn(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick);
4428 mPUSHn(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick);
4429 mPUSHn(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick);
a0d0e21e
LW		 4430 }
4431 RETURN;
9cad6237 4432#else
2f42fcb0
JH		 4433# ifdef PERL_MICRO
4434 dSP;
6e449a3a 4435 mPUSHn(0.0);
2f42fcb0
JH		 4436 EXTEND(SP, 4);
4437 if (GIMME == G_ARRAY) {
6e449a3a
MHM		 4438 mPUSHn(0.0);
4439 mPUSHn(0.0);
4440 mPUSHn(0.0);
2f42fcb0
JH		 4441 }
4442 RETURN;
4443# else
9cad6237 4444 DIE(aTHX_ "times not implemented");
2f42fcb0 4445# endif
55497cff 4446#endif /* HAS_TIMES */
a0d0e21e
LW		 4447}
4448
fc003d4b
MS		 4449/* The 32 bit int year limits the times we can represent to these
4450 boundaries with a few days wiggle room to account for time zone
4451 offsets
4452*/
4453/* Sat Jan 3 00:00:00 -2147481748 */
4454#define TIME_LOWER_BOUND -67768100567755200.0
4455/* Sun Dec 29 12:00:00 2147483647 */
4456#define TIME_UPPER_BOUND 67767976233316800.0
4457
a0d0e21e
LW		 4458PP(pp_gmtime)
4459{
97aff369 4460 dVAR;
39644a26 4461 dSP;
a272e669 4462 Time64_T when;
806a119a
MS		 4463 struct TM tmbuf;
4464 struct TM *err;
a8cb0261 4465 const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime";
27da23d5
JH		 4466 static const char * const dayname[] =
4467 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4468 static const char * const monname[] =
4469 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4470 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e 4471
a272e669
MS		 4472 if (MAXARG < 1) {
4473 time_t now;
4474 (void)time(&now);
4475 when = (Time64_T)now;
4476 }
7315c673 4477 else {
7eb4f9b7 4478 NV input = Perl_floor(POPn);
8efababc 4479 when = (Time64_T)input;
a2a5de95
NC		 4480 if (when != input) {
4481 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4482 "%s(%.0" NVff ") too large", opname, input);
7315c673
MS		 4483 }
4484 }
a0d0e21e 4485
fc003d4b
MS		 4486 if ( TIME_LOWER_BOUND > when ) {
4487 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4488 "%s(%.0" NVff ") too small", opname, when);
fc003d4b
MS		 4489 err = NULL;
4490 }
4491 else if( when > TIME_UPPER_BOUND ) {
4492 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4493 "%s(%.0" NVff ") too large", opname, when);
fc003d4b
MS		 4494 err = NULL;
4495 }
4496 else {
4497 if (PL_op->op_type == OP_LOCALTIME)
4498 err = S_localtime64_r(&when, &tmbuf);
4499 else
4500 err = S_gmtime64_r(&when, &tmbuf);
4501 }
a0d0e21e 4502
a2a5de95 4503 if (err == NULL) {
8efababc 4504 /* XXX %lld broken for quads */
a2a5de95 4505 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4506 "%s(%.0" NVff ") failed", opname, when);
5b6366c2 4507 }
a0d0e21e 4508
a272e669 4509 if (GIMME != G_ARRAY) { /* scalar context */
46fc3d4c 4510 SV *tsv;
8efababc
MS		 4511 /* XXX newSVpvf()'s %lld type is broken, so cheat with a double */
4512 double year = (double)tmbuf.tm_year + 1900;
4513
9a5ff6d9
AB		 4514 EXTEND(SP, 1);
4515 EXTEND_MORTAL(1);
a272e669 4516 if (err == NULL)
a0d0e21e 4517 RETPUSHUNDEF;
a272e669 4518
8efababc 4519 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %.0f",
a272e669
MS		 4520 dayname[tmbuf.tm_wday],
4521 monname[tmbuf.tm_mon],
4522 tmbuf.tm_mday,
4523 tmbuf.tm_hour,
4524 tmbuf.tm_min,
4525 tmbuf.tm_sec,
8efababc 4526 year);
6e449a3a 4527 mPUSHs(tsv);
a0d0e21e 4528 }
a272e669
MS		 4529 else { /* list context */
4530 if ( err == NULL )
4531 RETURN;
4532
9a5ff6d9
AB		 4533 EXTEND(SP, 9);
4534 EXTEND_MORTAL(9);
a272e669
MS		 4535 mPUSHi(tmbuf.tm_sec);
4536 mPUSHi(tmbuf.tm_min);
4537 mPUSHi(tmbuf.tm_hour);
4538 mPUSHi(tmbuf.tm_mday);
4539 mPUSHi(tmbuf.tm_mon);
7315c673 4540 mPUSHn(tmbuf.tm_year);
a272e669
MS		 4541 mPUSHi(tmbuf.tm_wday);
4542 mPUSHi(tmbuf.tm_yday);
4543 mPUSHi(tmbuf.tm_isdst);
a0d0e21e
LW		 4544 }
4545 RETURN;
4546}
4547
4548PP(pp_alarm)
4549{
9cad6237 4550#ifdef HAS_ALARM
97aff369 4551 dVAR; dSP; dTARGET;
a0d0e21e 4552 int anum;
a0d0e21e
LW		 4553 anum = POPi;
4554 anum = alarm((unsigned int)anum);
a0d0e21e
LW		 4555 if (anum < 0)
4556 RETPUSHUNDEF;
c6419e06 4557 PUSHi(anum);
a0d0e21e
LW		 4558 RETURN;
4559#else
0322a713 4560 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4561#endif
4562}
4563
4564PP(pp_sleep)
4565{
97aff369 4566 dVAR; dSP; dTARGET;
a0d0e21e
LW		 4567 I32 duration;
4568 Time_t lasttime;
4569 Time_t when;
4570
4571 (void)time(&lasttime);
4572 if (MAXARG < 1)
76e3520e 4573 PerlProc_pause();
a0d0e21e
LW		 4574 else {
4575 duration = POPi;
76e3520e 4576 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4577 }
4578 (void)time(&when);
4579 XPUSHi(when - lasttime);
4580 RETURN;
4581}
4582
4583/* Shared memory. */
c9f7ac20 4584/* Merged with some message passing. */
a0d0e21e 4585
a0d0e21e
LW		 4586PP(pp_shmwrite)
4587{
4588#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4589 dVAR; dSP; dMARK; dTARGET;
c9f7ac20
NC		 4590 const int op_type = PL_op->op_type;
4591 I32 value;
a0d0e21e 4592
c9f7ac20
NC		 4593 switch (op_type) {
4594 case OP_MSGSND:
4595 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4596 break;
4597 case OP_MSGRCV:
4598 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4599 break;
ca563b4e
NC		 4600 case OP_SEMOP:
4601 value = (I32)(do_semop(MARK, SP) >= 0);
4602 break;
c9f7ac20
NC		 4603 default:
4604 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4605 break;
4606 }
a0d0e21e 4607
a0d0e21e
LW		 4608 SP = MARK;
4609 PUSHi(value);
4610 RETURN;
4611#else
897d3989 4612 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4613#endif
4614}
4615
4616/* Semaphores. */
4617
4618PP(pp_semget)
4619{
4620#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4621 dVAR; dSP; dMARK; dTARGET;
0bcc34c2 4622 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4623 SP = MARK;
4624 if (anum == -1)
4625 RETPUSHUNDEF;
4626 PUSHi(anum);
4627 RETURN;
4628#else
cea2e8a9 4629 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4630#endif
4631}
4632
4633PP(pp_semctl)
4634{
4635#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4636 dVAR; dSP; dMARK; dTARGET;
0bcc34c2 4637 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4638 SP = MARK;
4639 if (anum == -1)
4640 RETSETUNDEF;
4641 if (anum != 0) {
4642 PUSHi(anum);
4643 }
4644 else {
8903cb82 4645 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4646 }
4647 RETURN;
4648#else
897d3989 4649 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4650#endif
4651}
4652
5cdc4e88
NC		 4653/* I can't const this further without getting warnings about the types of
4654 various arrays passed in from structures. */
4655static SV *
4656S_space_join_names_mortal(pTHX_ char *const *array)
4657{
7c58897d 4658 SV *target;
5cdc4e88 4659
7918f24d
NC		 4660 PERL_ARGS_ASSERT_SPACE_JOIN_NAMES_MORTAL;
4661
5cdc4e88 4662 if (array && *array) {
84bafc02 4663 target = newSVpvs_flags("", SVs_TEMP);
5cdc4e88
NC		 4664 while (1) {
4665 sv_catpv(target, *array);
4666 if (!*++array)
4667 break;
4668 sv_catpvs(target, " ");
4669 }
7c58897d
NC		 4670 } else {
4671 target = sv_mortalcopy(&PL_sv_no);
5cdc4e88
NC		 4672 }
4673 return target;
4674}
4675
a0d0e21e
LW		 4676/* Get system info. */
4677
a0d0e21e
LW		 4678PP(pp_ghostent)
4679{
693762b4 4680#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
97aff369 4681 dVAR; dSP;
533c011a 4682 I32 which = PL_op->op_type;
a0d0e21e
LW		 4683 register char **elem;
4684 register SV *sv;
dc45a647 4685#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4686 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4687 struct hostent *gethostbyname(Netdb_name_t);
4688 struct hostent *gethostent(void);
a0d0e21e 4689#endif
07822e36 4690 struct hostent *hent = NULL;
a0d0e21e
LW		 4691 unsigned long len;
4692
4693 EXTEND(SP, 10);
edd309b7 4694 if (which == OP_GHBYNAME) {
dc45a647 4695#ifdef HAS_GETHOSTBYNAME
0bcc34c2 4696 const char* const name = POPpbytex;
edd309b7 4697 hent = PerlSock_gethostbyname(name);
dc45a647 4698#else
cea2e8a9 4699 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4700#endif
edd309b7 4701 }
a0d0e21e 4702 else if (which == OP_GHBYADDR) {
dc45a647 4703#ifdef HAS_GETHOSTBYADDR
0bcc34c2
AL		 4704 const int addrtype = POPi;
4705 SV * const addrsv = POPs;
a0d0e21e 4706 STRLEN addrlen;
48fc4736 4707 const char *addr = (char *)SvPVbyte(addrsv, addrlen);
a0d0e21e 4708
48fc4736 4709 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4710#else
cea2e8a9 4711 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4712#endif
a0d0e21e
LW		 4713 }
4714 else
4715#ifdef HAS_GETHOSTENT
6ad3d225 4716 hent = PerlSock_gethostent();
a0d0e21e 4717#else
cea2e8a9 4718 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4719#endif
4720
4721#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4722 if (!hent) {
4723#ifdef USE_REENTRANT_API
4724# ifdef USE_GETHOSTENT_ERRNO
4725 h_errno = PL_reentrant_buffer->_gethostent_errno;
4726# endif
4727#endif
37038d91 4728 STATUS_UNIX_SET(h_errno);
10bc17b6 4729 }
a0d0e21e
LW		 4730#endif
4731
4732 if (GIMME != G_ARRAY) {
4733 PUSHs(sv = sv_newmortal());
4734 if (hent) {
4735 if (which == OP_GHBYNAME) {
fd0af264 4736 if (hent->h_addr)
4737 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4738 }
4739 else
4740 sv_setpv(sv, (char*)hent->h_name);
4741 }
4742 RETURN;
4743 }
4744
4745 if (hent) {
6e449a3a 4746 mPUSHs(newSVpv((char*)hent->h_name, 0));
931e0695 4747 PUSHs(space_join_names_mortal(hent->h_aliases));
6e449a3a 4748 mPUSHi(hent->h_addrtype);
a0d0e21e 4749 len = hent->h_length;
6e449a3a 4750 mPUSHi(len);
a0d0e21e
LW		 4751#ifdef h_addr
4752 for (elem = hent->h_addr_list; elem && *elem; elem++) {
6e449a3a 4753 mXPUSHp(*elem, len);
a0d0e21e
LW		 4754 }
4755#else
fd0af264 4756 if (hent->h_addr)
22f1178f 4757 mPUSHp(hent->h_addr, len);
7c58897d
NC		 4758 else
4759 PUSHs(sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4760#endif /* h_addr */
4761 }
4762 RETURN;
4763#else
7844cc62 4764 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4765#endif
4766}
4767
a0d0e21e
LW		 4768PP(pp_gnetent)
4769{
693762b4 4770#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
97aff369 4771 dVAR; dSP;
533c011a 4772 I32 which = PL_op->op_type;
a0d0e21e 4773 register SV *sv;
dc45a647 4774#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4775 struct netent *getnetbyaddr(Netdb_net_t, int);
4776 struct netent *getnetbyname(Netdb_name_t);
4777 struct netent *getnetent(void);
8ac85365 4778#endif
a0d0e21e
LW		 4779 struct netent *nent;
4780
edd309b7 4781 if (which == OP_GNBYNAME){
dc45a647 4782#ifdef HAS_GETNETBYNAME
0bcc34c2 4783 const char * const name = POPpbytex;
edd309b7 4784 nent = PerlSock_getnetbyname(name);
dc45a647 4785#else
cea2e8a9 4786 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4787#endif
edd309b7 4788 }
a0d0e21e 4789 else if (which == OP_GNBYADDR) {
dc45a647 4790#ifdef HAS_GETNETBYADDR
0bcc34c2
AL		 4791 const int addrtype = POPi;
4792 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4793 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4794#else
cea2e8a9 4795 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4796#endif
a0d0e21e
LW		 4797 }
4798 else
dc45a647 4799#ifdef HAS_GETNETENT
76e3520e 4800 nent = PerlSock_getnetent();
dc45a647 4801#else
cea2e8a9 4802 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4803#endif
a0d0e21e 4804
10bc17b6
JH		 4805#ifdef HOST_NOT_FOUND
4806 if (!nent) {
4807#ifdef USE_REENTRANT_API
4808# ifdef USE_GETNETENT_ERRNO
4809 h_errno = PL_reentrant_buffer->_getnetent_errno;
4810# endif
4811#endif
37038d91 4812 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4813 }
4814#endif
4815
a0d0e21e
LW		 4816 EXTEND(SP, 4);
4817 if (GIMME != G_ARRAY) {
4818 PUSHs(sv = sv_newmortal());
4819 if (nent) {
4820 if (which == OP_GNBYNAME)
1e422769 4821 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4822 else
4823 sv_setpv(sv, nent->n_name);
4824 }
4825 RETURN;
4826 }
4827
4828 if (nent) {
6e449a3a 4829 mPUSHs(newSVpv(nent->n_name, 0));
931e0695 4830 PUSHs(space_join_names_mortal(nent->n_aliases));
6e449a3a
MHM		 4831 mPUSHi(nent->n_addrtype);
4832 mPUSHi(nent->n_net);
a0d0e21e
LW		 4833 }
4834
4835 RETURN;
4836#else
7844cc62 4837 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4838#endif
4839}
4840
a0d0e21e
LW		 4841PP(pp_gprotoent)
4842{
693762b4 4843#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
97aff369 4844 dVAR; dSP;
533c011a 4845 I32 which = PL_op->op_type;
301e8125 4846 register SV *sv;
dc45a647 4847#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4848 struct protoent *getprotobyname(Netdb_name_t);
4849 struct protoent *getprotobynumber(int);
4850 struct protoent *getprotoent(void);
8ac85365 4851#endif
a0d0e21e
LW		 4852 struct protoent *pent;
4853
edd309b7 4854 if (which == OP_GPBYNAME) {
e5c9fcd0 4855#ifdef HAS_GETPROTOBYNAME
0bcc34c2 4856 const char* const name = POPpbytex;
edd309b7 4857 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4858#else
cea2e8a9 4859 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4860#endif
edd309b7
JH		 4861 }
4862 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4863#ifdef HAS_GETPROTOBYNUMBER
0bcc34c2 4864 const int number = POPi;
edd309b7 4865 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4866#else
edd309b7 4867 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4868#endif
edd309b7 4869 }
a0d0e21e 4870 else
e5c9fcd0 4871#ifdef HAS_GETPROTOENT
6ad3d225 4872 pent = PerlSock_getprotoent();
e5c9fcd0 4873#else
cea2e8a9 4874 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4875#endif
a0d0e21e
LW		 4876
4877 EXTEND(SP, 3);
4878 if (GIMME != G_ARRAY) {
4879 PUSHs(sv = sv_newmortal());
4880 if (pent) {
4881 if (which == OP_GPBYNAME)
1e422769 4882 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4883 else
4884 sv_setpv(sv, pent->p_name);
4885 }
4886 RETURN;
4887 }
4888
4889 if (pent) {
6e449a3a 4890 mPUSHs(newSVpv(pent->p_name, 0));
931e0695 4891 PUSHs(space_join_names_mortal(pent->p_aliases));
6e449a3a 4892 mPUSHi(pent->p_proto);
a0d0e21e
LW		 4893 }
4894
4895 RETURN;
4896#else
7844cc62 4897 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4898#endif
4899}
4900
a0d0e21e
LW		 4901PP(pp_gservent)
4902{
693762b4 4903#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
97aff369 4904 dVAR; dSP;
533c011a 4905 I32 which = PL_op->op_type;
a0d0e21e 4906 register SV *sv;
dc45a647 4907#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4908 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4909 struct servent *getservbyport(int, Netdb_name_t);
4910 struct servent *getservent(void);
8ac85365 4911#endif
a0d0e21e
LW		 4912 struct servent *sent;
4913
4914 if (which == OP_GSBYNAME) {
dc45a647 4915#ifdef HAS_GETSERVBYNAME
0bcc34c2
AL		 4916 const char * const proto = POPpbytex;
4917 const char * const name = POPpbytex;
bd61b366 4918 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
dc45a647 4919#else
cea2e8a9 4920 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4921#endif
a0d0e21e
LW		 4922 }
4923 else if (which == OP_GSBYPORT) {
dc45a647 4924#ifdef HAS_GETSERVBYPORT
0bcc34c2 4925 const char * const proto = POPpbytex;
eb160463 4926 unsigned short port = (unsigned short)POPu;
36477c24 4927#ifdef HAS_HTONS
6ad3d225 4928 port = PerlSock_htons(port);
36477c24 4929#endif
bd61b366 4930 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
dc45a647 4931#else
cea2e8a9 4932 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4933#endif
a0d0e21e
LW		 4934 }
4935 else
e5c9fcd0 4936#ifdef HAS_GETSERVENT
6ad3d225 4937 sent = PerlSock_getservent();
e5c9fcd0 4938#else
cea2e8a9 4939 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4940#endif
a0d0e21e
LW		 4941
4942 EXTEND(SP, 4);
4943 if (GIMME != G_ARRAY) {
4944 PUSHs(sv = sv_newmortal());
4945 if (sent) {
4946 if (which == OP_GSBYNAME) {
4947#ifdef HAS_NTOHS
6ad3d225 4948 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4949#else
1e422769 4950 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4951#endif
4952 }
4953 else
4954 sv_setpv(sv, sent->s_name);
4955 }
4956 RETURN;
4957 }
4958
4959 if (sent) {
6e449a3a 4960 mPUSHs(newSVpv(sent->s_name, 0));
931e0695 4961 PUSHs(space_join_names_mortal(sent->s_aliases));
a0d0e21e 4962#ifdef HAS_NTOHS
6e449a3a 4963 mPUSHi(PerlSock_ntohs(sent->s_port));
a0d0e21e 4964#else
6e449a3a 4965 mPUSHi(sent->s_port);
a0d0e21e 4966#endif
6e449a3a 4967 mPUSHs(newSVpv(sent->s_proto, 0));
a0d0e21e
LW		 4968 }
4969
4970 RETURN;
4971#else
7844cc62 4972 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4973#endif
4974}
4975
4976PP(pp_shostent)
4977{
97aff369 4978 dVAR; dSP;
396166e1
NC		 4979 const int stayopen = TOPi;
4980 switch(PL_op->op_type) {
4981 case OP_SHOSTENT:
4982#ifdef HAS_SETHOSTENT
4983 PerlSock_sethostent(stayopen);
a0d0e21e 4984#else
396166e1 4985 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 4986#endif
396166e1 4987 break;
693762b4 4988#ifdef HAS_SETNETENT
396166e1
NC		 4989 case OP_SNETENT:
4990 PerlSock_setnetent(stayopen);
a0d0e21e 4991#else
396166e1 4992 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 4993#endif
396166e1
NC		 4994 break;
4995 case OP_SPROTOENT:
693762b4 4996#ifdef HAS_SETPROTOENT
396166e1 4997 PerlSock_setprotoent(stayopen);
a0d0e21e 4998#else
396166e1 4999 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5000#endif
396166e1
NC		 5001 break;
5002 case OP_SSERVENT:
693762b4 5003#ifdef HAS_SETSERVENT
396166e1 5004 PerlSock_setservent(stayopen);
a0d0e21e 5005#else
396166e1 5006 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5007#endif
396166e1
NC		 5008 break;
5009 }
5010 RETSETYES;
a0d0e21e
LW		 5011}
5012
5013PP(pp_ehostent)
5014{
97aff369 5015 dVAR; dSP;
d8ef1fcd
NC		 5016 switch(PL_op->op_type) {
5017 case OP_EHOSTENT:
5018#ifdef HAS_ENDHOSTENT
5019 PerlSock_endhostent();
a0d0e21e 5020#else
d8ef1fcd 5021 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5022#endif
d8ef1fcd
NC		 5023 break;
5024 case OP_ENETENT:
693762b4 5025#ifdef HAS_ENDNETENT
d8ef1fcd 5026 PerlSock_endnetent();
a0d0e21e 5027#else
d8ef1fcd 5028 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5029#endif
d8ef1fcd
NC		 5030 break;
5031 case OP_EPROTOENT:
693762b4 5032#ifdef HAS_ENDPROTOENT
d8ef1fcd 5033 PerlSock_endprotoent();
a0d0e21e 5034#else
d8ef1fcd 5035 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5036#endif
d8ef1fcd
NC		 5037 break;
5038 case OP_ESERVENT:
693762b4 5039#ifdef HAS_ENDSERVENT
d8ef1fcd 5040 PerlSock_endservent();
a0d0e21e 5041#else
d8ef1fcd 5042 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5043#endif
d8ef1fcd 5044 break;
720d5dbf
NC		 5045 case OP_SGRENT:
5046#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5047 setgrent();
5048#else
5049 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5050#endif
5051 break;
5052 case OP_EGRENT:
5053#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5054 endgrent();
5055#else
5056 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5057#endif
5058 break;
5059 case OP_SPWENT:
5060#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5061 setpwent();
5062#else
5063 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5064#endif
5065 break;
5066 case OP_EPWENT:
5067#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5068 endpwent();
5069#else
5070 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5071#endif
5072 break;
d8ef1fcd
NC		 5073 }
5074 EXTEND(SP,1);
5075 RETPUSHYES;
a0d0e21e
LW		 5076}
5077
a0d0e21e
LW		 5078PP(pp_gpwent)
5079{
0994c4d0 5080#ifdef HAS_PASSWD
97aff369 5081 dVAR; dSP;
533c011a 5082 I32 which = PL_op->op_type;
a0d0e21e 5083 register SV *sv;
e3aefe8d 5084 struct passwd *pwent = NULL;
301e8125 5085 /*
bcf53261
JH		 5086 * We currently support only the SysV getsp* shadow password interface.
5087 * The interface is declared in <shadow.h> and often one needs to link
5088 * with -lsecurity or some such.
5089 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5090 * (and SCO?)
5091 *
5092 * AIX getpwnam() is clever enough to return the encrypted password
5093 * only if the caller (euid?) is root.
5094 *
e549f1c5 5095 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5096 * seem to contain more than one interface for accessing the shadow
5097 * password databases, possibly for compatibility reasons.
3813c136 5098 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5099 * are much more complicated, but also very similar to each other.
5100 *
5101 * <sys/types.h>
5102 * <sys/security.h>
5103 * <prot.h>
5104 * struct pr_passwd *getprpw*();
5105 * The password is in
3813c136
JH		 5106 * char getprpw*(...).ufld.fd_encrypt[]
5107 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5108 *
5109 * <sys/types.h>
5110 * <sys/security.h>
5111 * <prot.h>
5112 * struct es_passwd *getespw*();
5113 * The password is in
5114 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5115 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5116 *
e1920a95 5117 * <userpw.h> (AIX)
e549f1c5
JH		 5118 * struct userpw *getuserpw();
5119 * The password is in
5120 * char *(getuserpw(...)).spw_upw_passwd
5121 * (but the de facto standard getpwnam() should work okay)
5122 *
3813c136 5123 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5124 *
5125 * In HP-UX for getprpw*() the manual page claims that one should include
5126 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5127 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5128 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5129 *
5130 * Note that <sys/security.h> is already probed for, but currently
5131 * it is only included in special cases.
301e8125 5132 *
bcf53261
JH		 5133 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5134 * be preferred interface, even though also the getprpw*() interface
5135 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5136 * One also needs to call set_auth_parameters() in main() before
5137 * doing anything else, whether one is using getespw*() or getprpw*().
5138 *
5139 * Note that accessing the shadow databases can be magnitudes
5140 * slower than accessing the standard databases.
bcf53261
JH		 5141 *
5142 * --jhi
5143 */
a0d0e21e 5144
9e5f0c48
JH		 5145# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5146 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5147 * the pw_comment is left uninitialized. */
5148 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5149# endif
5150
e3aefe8d
JH		 5151 switch (which) {
5152 case OP_GPWNAM:
edd309b7 5153 {
0bcc34c2 5154 const char* const name = POPpbytex;
edd309b7
JH		 5155 pwent = getpwnam(name);
5156 }
5157 break;
e3aefe8d 5158 case OP_GPWUID:
edd309b7
JH		 5159 {
5160 Uid_t uid = POPi;
5161 pwent = getpwuid(uid);
5162 }
e3aefe8d
JH		 5163 break;
5164 case OP_GPWENT:
1883634f 5165# ifdef HAS_GETPWENT
e3aefe8d 5166 pwent = getpwent();
faea9016
IRC		 5167#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5168 if (pwent) pwent = getpwnam(pwent->pw_name);
5169#endif
1883634f 5170# else
a45d1c96 5171 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5172# endif
e3aefe8d
JH		 5173 break;
5174 }
8c0bfa08 5175
a0d0e21e
LW		 5176 EXTEND(SP, 10);
5177 if (GIMME != G_ARRAY) {
5178 PUSHs(sv = sv_newmortal());
5179 if (pwent) {
5180 if (which == OP_GPWNAM)
1883634f 5181# if Uid_t_sign <= 0
1e422769 5182 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5183# else
23dcd6c8 5184 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5185# endif
a0d0e21e
LW		 5186 else
5187 sv_setpv(sv, pwent->pw_name);
5188 }
5189 RETURN;
5190 }
5191
5192 if (pwent) {
6e449a3a 5193 mPUSHs(newSVpv(pwent->pw_name, 0));
6ee623d5 5194
6e449a3a
MHM		 5195 sv = newSViv(0);
5196 mPUSHs(sv);
3813c136
JH		 5197 /* If we have getspnam(), we try to dig up the shadow
5198 * password. If we are underprivileged, the shadow
5199 * interface will set the errno to EACCES or similar,
5200 * and return a null pointer. If this happens, we will
5201 * use the dummy password (usually "*" or "x") from the
5202 * standard password database.
5203 *
5204 * In theory we could skip the shadow call completely
5205 * if euid != 0 but in practice we cannot know which
5206 * security measures are guarding the shadow databases
5207 * on a random platform.
5208 *
5209 * Resist the urge to use additional shadow interfaces.
5210 * Divert the urge to writing an extension instead.
5211 *
5212 * --jhi */
e549f1c5
JH		 5213 /* Some AIX setups falsely(?) detect some getspnam(), which
5214 * has a different API than the Solaris/IRIX one. */
5215# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136 5216 {
4ee39169 5217 dSAVE_ERRNO;
0bcc34c2
AL		 5218 const struct spwd * const spwent = getspnam(pwent->pw_name);
5219 /* Save and restore errno so that
3813c136 5220 * underprivileged attempts seem
486ec47a 5221 * to have never made the unsuccessful
3813c136 5222 * attempt to retrieve the shadow password. */
4ee39169 5223 RESTORE_ERRNO;
3813c136
JH		 5224 if (spwent && spwent->sp_pwdp)
5225 sv_setpv(sv, spwent->sp_pwdp);
5226 }
f1066039 5227# endif
e020c87d 5228# ifdef PWPASSWD
3813c136
JH		 5229 if (!SvPOK(sv)) /* Use the standard password, then. */
5230 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5231# endif
3813c136 5232
1883634f 5233# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5234 /* passwd is tainted because user himself can diddle with it.
5235 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5236 SvTAINTED_on(sv);
1883634f 5237# endif
6ee623d5 5238
1883634f 5239# if Uid_t_sign <= 0
6e449a3a 5240 mPUSHi(pwent->pw_uid);
1883634f 5241# else
6e449a3a 5242 mPUSHu(pwent->pw_uid);
1883634f 5243# endif
6ee623d5 5244
1883634f 5245# if Uid_t_sign <= 0
6e449a3a 5246 mPUSHi(pwent->pw_gid);
1883634f 5247# else
6e449a3a 5248 mPUSHu(pwent->pw_gid);
1883634f 5249# endif
3813c136
JH		 5250 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5251 * because of the poor interface of the Perl getpw*(),
5252 * not because there's some standard/convention saying so.
5253 * A better interface would have been to return a hash,
5254 * but we are accursed by our history, alas. --jhi. */
1883634f 5255# ifdef PWCHANGE
6e449a3a 5256 mPUSHi(pwent->pw_change);
6ee623d5 5257# else
1883634f 5258# ifdef PWQUOTA
6e449a3a 5259 mPUSHi(pwent->pw_quota);
1883634f 5260# else
a1757be1 5261# ifdef PWAGE
6e449a3a 5262 mPUSHs(newSVpv(pwent->pw_age, 0));
7c58897d
NC		 5263# else
5264 /* I think that you can never get this compiled, but just in case. */
5265 PUSHs(sv_mortalcopy(&PL_sv_no));
a1757be1 5266# endif
6ee623d5
GS		 5267# endif
5268# endif
6ee623d5 5269
3813c136
JH		 5270 /* pw_class and pw_comment are mutually exclusive--.
5271 * see the above note for pw_change, pw_quota, and pw_age. */
1883634f 5272# ifdef PWCLASS
6e449a3a 5273 mPUSHs(newSVpv(pwent->pw_class, 0));
1883634f
JH		 5274# else
5275# ifdef PWCOMMENT
6e449a3a 5276 mPUSHs(newSVpv(pwent->pw_comment, 0));
7c58897d
NC		 5277# else
5278 /* I think that you can never get this compiled, but just in case. */
5279 PUSHs(sv_mortalcopy(&PL_sv_no));
1883634f 5280# endif
6ee623d5 5281# endif
6ee623d5 5282
1883634f 5283# ifdef PWGECOS
7c58897d
NC		 5284 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5285# else
c4c533cb 5286 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f
JH		 5287# endif
5288# ifndef INCOMPLETE_TAINTS
d2719217 5289 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5290 SvTAINTED_on(sv);
1883634f 5291# endif
6ee623d5 5292
6e449a3a 5293 mPUSHs(newSVpv(pwent->pw_dir, 0));
6ee623d5 5294
7c58897d 5295 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
1883634f 5296# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5297 /* pw_shell is tainted because user himself can diddle with it. */
5298 SvTAINTED_on(sv);
1883634f 5299# endif
6ee623d5 5300
1883634f 5301# ifdef PWEXPIRE
6e449a3a 5302 mPUSHi(pwent->pw_expire);
1883634f 5303# endif
a0d0e21e
LW		 5304 }
5305 RETURN;
5306#else
af51a00e 5307 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5308#endif
5309}
5310
a0d0e21e
LW		 5311PP(pp_ggrent)
5312{
0994c4d0 5313#ifdef HAS_GROUP
97aff369 5314 dVAR; dSP;
6136c704
AL		 5315 const I32 which = PL_op->op_type;
5316 const struct group *grent;
a0d0e21e 5317
edd309b7 5318 if (which == OP_GGRNAM) {
0bcc34c2 5319 const char* const name = POPpbytex;
6136c704 5320 grent = (const struct group *)getgrnam(name);
edd309b7
JH		 5321 }
5322 else if (which == OP_GGRGID) {
0bcc34c2 5323 const Gid_t gid = POPi;
6136c704 5324 grent = (const struct group *)getgrgid(gid);
edd309b7 5325 }
a0d0e21e 5326 else
0994c4d0 5327#ifdef HAS_GETGRENT
a0d0e21e 5328 grent = (struct group *)getgrent();
0994c4d0
JH		 5329#else
5330 DIE(aTHX_ PL_no_func, "getgrent");
5331#endif
a0d0e21e
LW		 5332
5333 EXTEND(SP, 4);
5334 if (GIMME != G_ARRAY) {
6136c704
AL		 5335 SV * const sv = sv_newmortal();
5336
5337 PUSHs(sv);
a0d0e21e
LW		 5338 if (grent) {
5339 if (which == OP_GGRNAM)
f325df1b 5340#if Gid_t_sign <= 0
1e422769 5341 sv_setiv(sv, (IV)grent->gr_gid);
f325df1b
DS		 5342#else
5343 sv_setuv(sv, (UV)grent->gr_gid);
5344#endif
a0d0e21e
LW		 5345 else
5346 sv_setpv(sv, grent->gr_name);
5347 }
5348 RETURN;
5349 }
5350
5351 if (grent) {
6e449a3a 5352 mPUSHs(newSVpv(grent->gr_name, 0));
28e8609d 5353
28e8609d 5354#ifdef GRPASSWD
6e449a3a 5355 mPUSHs(newSVpv(grent->gr_passwd, 0));
7c58897d
NC		 5356#else
5357 PUSHs(sv_mortalcopy(&PL_sv_no));
28e8609d
JH		 5358#endif
5359
f325df1b 5360#if Gid_t_sign <= 0
6e449a3a 5361 mPUSHi(grent->gr_gid);
f325df1b
DS		 5362#else
5363 mPUSHu(grent->gr_gid);
5364#endif
28e8609d 5365
5b56e7c5 5366#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3d7e8424
JH		 5367 /* In UNICOS/mk (_CRAYMPP) the multithreading
5368 * versions (getgrnam_r, getgrgid_r)
5369 * seem to return an illegal pointer
5370 * as the group members list, gr_mem.
5371 * getgrent() doesn't even have a _r version
5372 * but the gr_mem is poisonous anyway.
5373 * So yes, you cannot get the list of group
5374 * members if building multithreaded in UNICOS/mk. */
931e0695 5375 PUSHs(space_join_names_mortal(grent->gr_mem));
3d7e8424 5376#endif
a0d0e21e
LW		 5377 }
5378
5379 RETURN;
5380#else
af51a00e 5381 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5382#endif
5383}
5384
a0d0e21e
LW		 5385PP(pp_getlogin)
5386{
a0d0e21e 5387#ifdef HAS_GETLOGIN
97aff369 5388 dVAR; dSP; dTARGET;
a0d0e21e
LW		 5389 char *tmps;
5390 EXTEND(SP, 1);
76e3520e 5391 if (!(tmps = PerlProc_getlogin()))
a0d0e21e 5392 RETPUSHUNDEF;
bee8aa44
NC		 5393 sv_setpv_mg(TARG, tmps);
5394 PUSHs(TARG);
a0d0e21e
LW		 5395 RETURN;
5396#else
cea2e8a9 5397 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5398#endif
5399}
5400
5401/* Miscellaneous. */
5402
5403PP(pp_syscall)
5404{
d2719217 5405#ifdef HAS_SYSCALL
97aff369 5406 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5407 register I32 items = SP - MARK;
5408 unsigned long a[20];
5409 register I32 i = 0;
5410 I32 retval = -1;
5411
3280af22 5412 if (PL_tainting) {
a0d0e21e 5413 while (++MARK <= SP) {
bbce6d69 5414 if (SvTAINTED(*MARK)) {
5415 TAINT;
5416 break;
5417 }
a0d0e21e
LW		 5418 }
5419 MARK = ORIGMARK;
5420 TAINT_PROPER("syscall");
5421 }
5422
5423 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5424 * or where sizeof(long) != sizeof(char*). But such machines will
5425 * not likely have syscall implemented either, so who cares?
5426 */
5427 while (++MARK <= SP) {
5428 if (SvNIOK(*MARK) || !i)
5429 a[i++] = SvIV(*MARK);
3280af22 5430 else if (*MARK == &PL_sv_undef)
748a9306 5431 a[i++] = 0;
301e8125 5432 else
8b6b16e7 5433 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5434 if (i > 15)
5435 break;
5436 }
5437 switch (items) {
5438 default:
cea2e8a9 5439 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5440 case 0:
cea2e8a9 5441 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5442 case 1:
5443 retval = syscall(a[0]);
5444 break;
5445 case 2:
5446 retval = syscall(a[0],a[1]);
5447 break;
5448 case 3:
5449 retval = syscall(a[0],a[1],a[2]);
5450 break;
5451 case 4:
5452 retval = syscall(a[0],a[1],a[2],a[3]);
5453 break;
5454 case 5:
5455 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5456 break;
5457 case 6:
5458 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5459 break;
5460 case 7:
5461 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5462 break;
5463 case 8:
5464 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5465 break;
5466#ifdef atarist
5467 case 9:
5468 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5469 break;
5470 case 10:
5471 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5472 break;
5473 case 11:
5474 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5475 a[10]);
5476 break;
5477 case 12:
5478 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5479 a[10],a[11]);
5480 break;
5481 case 13:
5482 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5483 a[10],a[11],a[12]);
5484 break;
5485 case 14:
5486 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5487 a[10],a[11],a[12],a[13]);
5488 break;
5489#endif /* atarist */
5490 }
5491 SP = ORIGMARK;
5492 PUSHi(retval);
5493 RETURN;
5494#else
cea2e8a9 5495 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5496#endif
5497}
5498
ff68c719 5499#ifdef FCNTL_EMULATE_FLOCK
301e8125 5500
ff68c719 5501/* XXX Emulate flock() with fcntl().
5502 What's really needed is a good file locking module.
5503*/
5504
cea2e8a9
GS		 5505static int
5506fcntl_emulate_flock(int fd, int operation)
ff68c719 5507{
fd9e8b45 5508 int res;
ff68c719 5509 struct flock flock;
301e8125 5510
ff68c719 5511 switch (operation & ~LOCK_NB) {
5512 case LOCK_SH:
5513 flock.l_type = F_RDLCK;
5514 break;
5515 case LOCK_EX:
5516 flock.l_type = F_WRLCK;
5517 break;
5518 case LOCK_UN:
5519 flock.l_type = F_UNLCK;
5520 break;
5521 default:
5522 errno = EINVAL;
5523 return -1;
5524 }
5525 flock.l_whence = SEEK_SET;
d9b3e12d 5526 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5527
fd9e8b45
JD		 5528 res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5529 if (res == -1 && ((errno == EAGAIN) || (errno == EACCES)))
5530 errno = EWOULDBLOCK;
5531 return res;
ff68c719 5532}
5533
5534#endif /* FCNTL_EMULATE_FLOCK */
5535
5536#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5537
5538/* XXX Emulate flock() with lockf(). This is just to increase
5539 portability of scripts. The calls are not completely
5540 interchangeable. What's really needed is a good file
5541 locking module.
5542*/
5543
76c32331 5544/* The lockf() constants might have been defined in <unistd.h>.
5545 Unfortunately, <unistd.h> causes troubles on some mixed
5546 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5547
5548 Further, the lockf() constants aren't POSIX, so they might not be
5549 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5550 just stick in the SVID values and be done with it. Sigh.
5551*/
5552
5553# ifndef F_ULOCK
5554# define F_ULOCK 0 /* Unlock a previously locked region */
5555# endif
5556# ifndef F_LOCK
5557# define F_LOCK 1 /* Lock a region for exclusive use */
5558# endif
5559# ifndef F_TLOCK
5560# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5561# endif
5562# ifndef F_TEST
5563# define F_TEST 3 /* Test a region for other processes locks */
5564# endif
5565
cea2e8a9
GS		 5566static int
5567lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5568{
5569 int i;
84902520 5570 Off_t pos;
4ee39169 5571 dSAVE_ERRNO;
84902520
TB		 5572
5573 /* flock locks entire file so for lockf we need to do the same */
6ad3d225 5574 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5575 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5576 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5577 pos = -1; /* seek failed, so don't seek back afterwards */
4ee39169 5578 RESTORE_ERRNO;
84902520 5579
16d20bd9
AD		 5580 switch (operation) {
5581
5582 /* LOCK_SH - get a shared lock */
5583 case LOCK_SH:
5584 /* LOCK_EX - get an exclusive lock */
5585 case LOCK_EX:
5586 i = lockf (fd, F_LOCK, 0);
5587 break;
5588
5589 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5590 case LOCK_SH|LOCK_NB:
5591 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5592 case LOCK_EX|LOCK_NB:
5593 i = lockf (fd, F_TLOCK, 0);
5594 if (i == -1)
5595 if ((errno == EAGAIN) || (errno == EACCES))
5596 errno = EWOULDBLOCK;
5597 break;
5598
ff68c719 5599 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5600 case LOCK_UN:
ff68c719 5601 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5602 i = lockf (fd, F_ULOCK, 0);
5603 break;
5604
5605 /* Default - can't decipher operation */
5606 default:
5607 i = -1;
5608 errno = EINVAL;
5609 break;
5610 }
84902520
TB		 5611
5612 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5613 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5614
16d20bd9
AD		 5615 return (i);
5616}
ff68c719 5617
5618#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5619
5620/*
5621 * Local variables:
5622 * c-indentation-style: bsd
5623 * c-basic-offset: 4
5624 * indent-tabs-mode: t
5625 * End:
5626 *
37442d52
RGS		 5627 * ex: set ts=8 sts=4 sw=4 noet:
5628 */
Unnamed repository; edit this file 'description' to name the repository.