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[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
2917 next = PL_op->op_next;
2918 if (next->op_type >= OP_FTRREAD &&
2919 next->op_type <= OP_FTBINARY &&
2920 next->op_private & OPpFT_STACKED
2921 ) {
2922 if (SvTRUE(tmpsv))
2923 /* leave the object alone */
2924 return TRUE;
2925 }
2926
2927 SETs(tmpsv);
2928 PUTBACK;
2929 return TRUE;
2930 }
2931 return FALSE;
2932}
2933
2934
fbb0b3b3
RGS		 2935/* This macro is used by the stacked filetest operators :
2936 * if the previous filetest failed, short-circuit and pass its value.
2937 * Else, discard it from the stack and continue. --rgs
2938 */
2939#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
d724f706 2940 if (!SvTRUE(TOPs)) { RETURN; } \
fbb0b3b3
RGS		 2941 else { (void)POPs; PUTBACK; } \
2942 }
2943
a0d0e21e
LW		 2944PP(pp_ftrread)
2945{
97aff369 2946 dVAR;
9cad6237 2947 I32 result;
af9e49b4
NC		 2948 /* Not const, because things tweak this below. Not bool, because there's
2949 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2950#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2951 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2952 /* Giving some sort of initial value silences compilers. */
2953# ifdef R_OK
2954 int access_mode = R_OK;
2955# else
2956 int access_mode = 0;
2957# endif
5ff3f7a4 2958#else
af9e49b4
NC		 2959 /* access_mode is never used, but leaving use_access in makes the
2960 conditional compiling below much clearer. */
2961 I32 use_access = 0;
5ff3f7a4 2962#endif
2dcac756 2963 Mode_t stat_mode = S_IRUSR;
a0d0e21e 2964
af9e49b4 2965 bool effective = FALSE;
07fe7c6a 2966 char opchar = '?';
2a3ff820 2967 dSP;
af9e49b4 2968
7fb13887
BM		 2969 switch (PL_op->op_type) {
2970 case OP_FTRREAD: opchar = 'R'; break;
2971 case OP_FTRWRITE: opchar = 'W'; break;
2972 case OP_FTREXEC: opchar = 'X'; break;
2973 case OP_FTEREAD: opchar = 'r'; break;
2974 case OP_FTEWRITE: opchar = 'w'; break;
2975 case OP_FTEEXEC: opchar = 'x'; break;
2976 }
6f1401dc 2977 tryAMAGICftest_MG(opchar);
7fb13887 2978
fbb0b3b3 2979 STACKED_FTEST_CHECK;
af9e49b4
NC		 2980
2981 switch (PL_op->op_type) {
2982 case OP_FTRREAD:
2983#if !(defined(HAS_ACCESS) && defined(R_OK))
2984 use_access = 0;
2985#endif
2986 break;
2987
2988 case OP_FTRWRITE:
5ff3f7a4 2989#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 2990 access_mode = W_OK;
5ff3f7a4 2991#else
af9e49b4 2992 use_access = 0;
5ff3f7a4 2993#endif
af9e49b4
NC		 2994 stat_mode = S_IWUSR;
2995 break;
a0d0e21e 2996
af9e49b4 2997 case OP_FTREXEC:
5ff3f7a4 2998#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 2999 access_mode = X_OK;
5ff3f7a4 3000#else
af9e49b4 3001 use_access = 0;
5ff3f7a4 3002#endif
af9e49b4
NC		 3003 stat_mode = S_IXUSR;
3004 break;
a0d0e21e 3005
af9e49b4 3006 case OP_FTEWRITE:
faee0e31 3007#ifdef PERL_EFF_ACCESS
af9e49b4 3008 access_mode = W_OK;
5ff3f7a4 3009#endif
af9e49b4 3010 stat_mode = S_IWUSR;
7fb13887 3011 /* fall through */
a0d0e21e 3012
af9e49b4
NC		 3013 case OP_FTEREAD:
3014#ifndef PERL_EFF_ACCESS
3015 use_access = 0;
3016#endif
3017 effective = TRUE;
3018 break;
3019
af9e49b4 3020 case OP_FTEEXEC:
faee0e31 3021#ifdef PERL_EFF_ACCESS
b376053d 3022 access_mode = X_OK;
5ff3f7a4 3023#else
af9e49b4 3024 use_access = 0;
5ff3f7a4 3025#endif
af9e49b4
NC		 3026 stat_mode = S_IXUSR;
3027 effective = TRUE;
3028 break;
3029 }
a0d0e21e 3030
af9e49b4
NC		 3031 if (use_access) {
3032#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2c2f35ab 3033 const char *name = POPpx;
af9e49b4
NC		 3034 if (effective) {
3035# ifdef PERL_EFF_ACCESS
3036 result = PERL_EFF_ACCESS(name, access_mode);
3037# else
3038 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3039 OP_NAME(PL_op));
3040# endif
3041 }
3042 else {
3043# ifdef HAS_ACCESS
3044 result = access(name, access_mode);
3045# else
3046 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3047# endif
3048 }
5ff3f7a4
GS		 3049 if (result == 0)
3050 RETPUSHYES;
3051 if (result < 0)
3052 RETPUSHUNDEF;
3053 RETPUSHNO;
af9e49b4 3054#endif
22865c03 3055 }
af9e49b4 3056
40c852de 3057 result = my_stat_flags(0);
22865c03 3058 SPAGAIN;
a0d0e21e
LW		 3059 if (result < 0)
3060 RETPUSHUNDEF;
af9e49b4 3061 if (cando(stat_mode, effective, &PL_statcache))
a0d0e21e
LW		 3062 RETPUSHYES;
3063 RETPUSHNO;
3064}
3065
3066PP(pp_ftis)
3067{
97aff369 3068 dVAR;
fbb0b3b3 3069 I32 result;
d7f0a2f4 3070 const int op_type = PL_op->op_type;
07fe7c6a 3071 char opchar = '?';
2a3ff820 3072 dSP;
07fe7c6a
BM		 3073
3074 switch (op_type) {
3075 case OP_FTIS: opchar = 'e'; break;
3076 case OP_FTSIZE: opchar = 's'; break;
3077 case OP_FTMTIME: opchar = 'M'; break;
3078 case OP_FTCTIME: opchar = 'C'; break;
3079 case OP_FTATIME: opchar = 'A'; break;
3080 }
6f1401dc 3081 tryAMAGICftest_MG(opchar);
07fe7c6a 3082
fbb0b3b3 3083 STACKED_FTEST_CHECK;
7fb13887 3084
40c852de 3085 result = my_stat_flags(0);
fbb0b3b3 3086 SPAGAIN;
a0d0e21e
LW		 3087 if (result < 0)
3088 RETPUSHUNDEF;
d7f0a2f4
NC		 3089 if (op_type == OP_FTIS)
3090 RETPUSHYES;
957b0e1d 3091 {
d7f0a2f4
NC		 3092 /* You can't dTARGET inside OP_FTIS, because you'll get
3093 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3094 dTARGET;
d7f0a2f4 3095 switch (op_type) {
957b0e1d
NC		 3096 case OP_FTSIZE:
3097#if Off_t_size > IVSIZE
3098 PUSHn(PL_statcache.st_size);
3099#else
3100 PUSHi(PL_statcache.st_size);
3101#endif
3102 break;
3103 case OP_FTMTIME:
3104 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3105 break;
3106 case OP_FTATIME:
3107 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3108 break;
3109 case OP_FTCTIME:
3110 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3111 break;
3112 }
3113 }
3114 RETURN;
a0d0e21e
LW		 3115}
3116
a0d0e21e
LW		 3117PP(pp_ftrowned)
3118{
97aff369 3119 dVAR;
fbb0b3b3 3120 I32 result;
07fe7c6a 3121 char opchar = '?';
2a3ff820 3122 dSP;
17ad201a 3123
7fb13887
BM		 3124 switch (PL_op->op_type) {
3125 case OP_FTROWNED: opchar = 'O'; break;
3126 case OP_FTEOWNED: opchar = 'o'; break;
3127 case OP_FTZERO: opchar = 'z'; break;
3128 case OP_FTSOCK: opchar = 'S'; break;
3129 case OP_FTCHR: opchar = 'c'; break;
3130 case OP_FTBLK: opchar = 'b'; break;
3131 case OP_FTFILE: opchar = 'f'; break;
3132 case OP_FTDIR: opchar = 'd'; break;
3133 case OP_FTPIPE: opchar = 'p'; break;
3134 case OP_FTSUID: opchar = 'u'; break;
3135 case OP_FTSGID: opchar = 'g'; break;
3136 case OP_FTSVTX: opchar = 'k'; break;
3137 }
6f1401dc 3138 tryAMAGICftest_MG(opchar);
7fb13887 3139
1b0124a7
JD		 3140 STACKED_FTEST_CHECK;
3141
17ad201a
NC		 3142 /* I believe that all these three are likely to be defined on most every
3143 system these days. */
3144#ifndef S_ISUID
c410dd6a 3145 if(PL_op->op_type == OP_FTSUID) {
1b0124a7
JD		 3146 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3147 (void) POPs;
17ad201a 3148 RETPUSHNO;
c410dd6a 3149 }
17ad201a
NC		 3150#endif
3151#ifndef S_ISGID
c410dd6a 3152 if(PL_op->op_type == OP_FTSGID) {
1b0124a7
JD		 3153 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3154 (void) POPs;
17ad201a 3155 RETPUSHNO;
c410dd6a 3156 }
17ad201a
NC		 3157#endif
3158#ifndef S_ISVTX
c410dd6a 3159 if(PL_op->op_type == OP_FTSVTX) {
1b0124a7
JD		 3160 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3161 (void) POPs;
17ad201a 3162 RETPUSHNO;
c410dd6a 3163 }
17ad201a
NC		 3164#endif
3165
40c852de 3166 result = my_stat_flags(0);
fbb0b3b3 3167 SPAGAIN;
a0d0e21e
LW		 3168 if (result < 0)
3169 RETPUSHUNDEF;
f1cb2d48
NC		 3170 switch (PL_op->op_type) {
3171 case OP_FTROWNED:
9ab9fa88 3172 if (PL_statcache.st_uid == PL_uid)
f1cb2d48
NC		 3173 RETPUSHYES;
3174 break;
3175 case OP_FTEOWNED:
3176 if (PL_statcache.st_uid == PL_euid)
3177 RETPUSHYES;
3178 break;
3179 case OP_FTZERO:
3180 if (PL_statcache.st_size == 0)
3181 RETPUSHYES;
3182 break;
3183 case OP_FTSOCK:
3184 if (S_ISSOCK(PL_statcache.st_mode))
3185 RETPUSHYES;
3186 break;
3187 case OP_FTCHR:
3188 if (S_ISCHR(PL_statcache.st_mode))
3189 RETPUSHYES;
3190 break;
3191 case OP_FTBLK:
3192 if (S_ISBLK(PL_statcache.st_mode))
3193 RETPUSHYES;
3194 break;
3195 case OP_FTFILE:
3196 if (S_ISREG(PL_statcache.st_mode))
3197 RETPUSHYES;
3198 break;
3199 case OP_FTDIR:
3200 if (S_ISDIR(PL_statcache.st_mode))
3201 RETPUSHYES;
3202 break;
3203 case OP_FTPIPE:
3204 if (S_ISFIFO(PL_statcache.st_mode))
3205 RETPUSHYES;
3206 break;
a0d0e21e 3207#ifdef S_ISUID
17ad201a
NC		 3208 case OP_FTSUID:
3209 if (PL_statcache.st_mode & S_ISUID)
3210 RETPUSHYES;
3211 break;
a0d0e21e 3212#endif
a0d0e21e 3213#ifdef S_ISGID
17ad201a
NC		 3214 case OP_FTSGID:
3215 if (PL_statcache.st_mode & S_ISGID)
3216 RETPUSHYES;
3217 break;
3218#endif
3219#ifdef S_ISVTX
3220 case OP_FTSVTX:
3221 if (PL_statcache.st_mode & S_ISVTX)
3222 RETPUSHYES;
3223 break;
a0d0e21e 3224#endif
17ad201a 3225 }
a0d0e21e
LW		 3226 RETPUSHNO;
3227}
3228
17ad201a 3229PP(pp_ftlink)
a0d0e21e 3230{
97aff369 3231 dVAR;
39644a26 3232 dSP;
500ff13f 3233 I32 result;
07fe7c6a 3234
6f1401dc 3235 tryAMAGICftest_MG('l');
40c852de 3236 result = my_lstat_flags(0);
500ff13f
BM		 3237 SPAGAIN;
3238
a0d0e21e
LW		 3239 if (result < 0)
3240 RETPUSHUNDEF;
17ad201a 3241 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e 3242 RETPUSHYES;
a0d0e21e
LW		 3243 RETPUSHNO;
3244}
3245
3246PP(pp_fttty)
3247{
97aff369 3248 dVAR;
39644a26 3249 dSP;
a0d0e21e
LW		 3250 int fd;
3251 GV *gv;
a0714e2c 3252 SV *tmpsv = NULL;
0784aae0 3253 char *name = NULL;
40c852de 3254 STRLEN namelen;
fb73857a 3255
6f1401dc 3256 tryAMAGICftest_MG('t');
07fe7c6a 3257
fbb0b3b3
RGS		 3258 STACKED_FTEST_CHECK;
3259
533c011a 3260 if (PL_op->op_flags & OPf_REF)
146174a9 3261 gv = cGVOP_gv;
13be902c 3262 else if (isGV_with_GP(TOPs))
159b6efe 3263 gv = MUTABLE_GV(POPs);
fb73857a 3264 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3265 gv = MUTABLE_GV(SvRV(POPs));
40c852de
DM		 3266 else {
3267 tmpsv = POPs;
3268 name = SvPV_nomg(tmpsv, namelen);
3269 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
3270 }
fb73857a 3271
a0d0e21e 3272 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3273 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3274 else if (tmpsv && SvOK(tmpsv)) {
40c852de
DM		 3275 if (isDIGIT(*name))
3276 fd = atoi(name);
7a5fd60d
NC		 3277 else
3278 RETPUSHUNDEF;
3279 }
a0d0e21e
LW		 3280 else
3281 RETPUSHUNDEF;
6ad3d225 3282 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3283 RETPUSHYES;
3284 RETPUSHNO;
3285}
3286
16d20bd9
AD		 3287#if defined(atarist) /* this will work with atariST. Configure will
3288 make guesses for other systems. */
3289# define FILE_base(f) ((f)->_base)
3290# define FILE_ptr(f) ((f)->_ptr)
3291# define FILE_cnt(f) ((f)->_cnt)
3292# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3293#endif
3294
3295PP(pp_fttext)
3296{
97aff369 3297 dVAR;
39644a26 3298 dSP;
a0d0e21e
LW		 3299 I32 i;
3300 I32 len;
3301 I32 odd = 0;
3302 STDCHAR tbuf[512];
3303 register STDCHAR *s;
3304 register IO *io;
5f05dabc 3305 register SV *sv;
3306 GV *gv;
146174a9 3307 PerlIO *fp;
a0d0e21e 3308
6f1401dc 3309 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3310
fbb0b3b3
RGS		 3311 STACKED_FTEST_CHECK;
3312
533c011a 3313 if (PL_op->op_flags & OPf_REF)
146174a9 3314 gv = cGVOP_gv;
13be902c 3315 else if (isGV_with_GP(TOPs))
159b6efe 3316 gv = MUTABLE_GV(POPs);
5f05dabc 3317 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3318 gv = MUTABLE_GV(SvRV(POPs));
5f05dabc 3319 else
a0714e2c 3320 gv = NULL;
5f05dabc 3321
3322 if (gv) {
a0d0e21e 3323 EXTEND(SP, 1);
3280af22
NIS		 3324 if (gv == PL_defgv) {
3325 if (PL_statgv)
3326 io = GvIO(PL_statgv);
a0d0e21e 3327 else {
3280af22 3328 sv = PL_statname;
a0d0e21e
LW		 3329 goto really_filename;
3330 }
3331 }
3332 else {
3280af22
NIS		 3333 PL_statgv = gv;
3334 PL_laststatval = -1;
76f68e9b 3335 sv_setpvs(PL_statname, "");
3280af22 3336 io = GvIO(PL_statgv);
a0d0e21e
LW		 3337 }
3338 if (io && IoIFP(io)) {
5f05dabc 3339 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3340 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3341 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3342 if (PL_laststatval < 0)
5f05dabc 3343 RETPUSHUNDEF;
9cbac4c7 3344 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3345 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3346 RETPUSHNO;
3347 else
3348 RETPUSHYES;
9cbac4c7 3349 }
a20bf0c3 3350 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3351 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3352 if (i != EOF)
760ac839 3353 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3354 }
a20bf0c3 3355 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3356 RETPUSHYES;
a20bf0c3
JH		 3357 len = PerlIO_get_bufsiz(IoIFP(io));
3358 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3359 /* sfio can have large buffers - limit to 512 */
3360 if (len > 512)
3361 len = 512;
a0d0e21e
LW		 3362 }
3363 else {
51087808 3364 report_evil_fh(cGVOP_gv);
93189314 3365 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3366 RETPUSHUNDEF;
3367 }
3368 }
3369 else {
3370 sv = POPs;
5f05dabc 3371 really_filename:
a0714e2c 3372 PL_statgv = NULL;
5c9aa243 3373 PL_laststype = OP_STAT;
40c852de 3374 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
aa07b2f6 3375 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3376 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3377 '\n'))
9014280d 3378 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3379 RETPUSHUNDEF;
3380 }
146174a9
CB		 3381 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3382 if (PL_laststatval < 0) {
3383 (void)PerlIO_close(fp);
5f05dabc 3384 RETPUSHUNDEF;
146174a9 3385 }
bd61b366 3386 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
146174a9
CB		 3387 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3388 (void)PerlIO_close(fp);
a0d0e21e 3389 if (len <= 0) {
533c011a 3390 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3391 RETPUSHNO; /* special case NFS directories */
3392 RETPUSHYES; /* null file is anything */
3393 }
3394 s = tbuf;
3395 }
3396
3397 /* now scan s to look for textiness */
4633a7c4 3398 /* XXX ASCII dependent code */
a0d0e21e 3399
146174a9
CB		 3400#if defined(DOSISH) || defined(USEMYBINMODE)
3401 /* ignore trailing ^Z on short files */
58c0efa5 3402 if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
146174a9
CB		 3403 --len;
3404#endif
3405
a0d0e21e
LW		 3406 for (i = 0; i < len; i++, s++) {
3407 if (!*s) { /* null never allowed in text */
3408 odd += len;
3409 break;
3410 }
9d116dd7 3411#ifdef EBCDIC
301e8125 3412 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3413 odd++;
3414#else
146174a9
CB		 3415 else if (*s & 128) {
3416#ifdef USE_LOCALE
2de3dbcc 3417 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3418 continue;
3419#endif
3420 /* utf8 characters don't count as odd */
fd400ab9 3421 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3422 int ulen = UTF8SKIP(s);
3423 if (ulen < len - i) {
3424 int j;
3425 for (j = 1; j < ulen; j++) {
fd400ab9 3426 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3427 goto not_utf8;
3428 }
3429 --ulen; /* loop does extra increment */
3430 s += ulen;
3431 i += ulen;
3432 continue;
3433 }
3434 }
3435 not_utf8:
3436 odd++;
146174a9 3437 }
a0d0e21e
LW		 3438 else if (*s < 32 &&
3439 *s != '\n' && *s != '\r' && *s != '\b' &&
3440 *s != '\t' && *s != '\f' && *s != 27)
3441 odd++;
9d116dd7 3442#endif
a0d0e21e
LW		 3443 }
3444
533c011a 3445 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3446 RETPUSHNO;
3447 else
3448 RETPUSHYES;
3449}
3450
a0d0e21e
LW		 3451/* File calls. */
3452
3453PP(pp_chdir)
3454{
97aff369 3455 dVAR; dSP; dTARGET;
c445ea15 3456 const char *tmps = NULL;
9a957fbc 3457 GV *gv = NULL;
a0d0e21e 3458
c4aca7d0 3459 if( MAXARG == 1 ) {
9a957fbc 3460 SV * const sv = POPs;
d4ac975e
GA		 3461 if (PL_op->op_flags & OPf_SPECIAL) {
3462 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3463 }
6e592b3a 3464 else if (isGV_with_GP(sv)) {
159b6efe 3465 gv = MUTABLE_GV(sv);
c4aca7d0 3466 }
6e592b3a 3467 else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 3468 gv = MUTABLE_GV(SvRV(sv));
c4aca7d0
GA		 3469 }
3470 else {
4ea561bc 3471 tmps = SvPV_nolen_const(sv);
c4aca7d0
GA		 3472 }
3473 }
35ae6b54 3474
c4aca7d0 3475 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3476 HV * const table = GvHVn(PL_envgv);
3477 SV **svp;
3478
a4fc7abc
AL		 3479 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3480 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
491527d0 3481#ifdef VMS
a4fc7abc 3482 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
491527d0 3483#endif
35ae6b54
MS		 3484 )
3485 {
3486 if( MAXARG == 1 )
9014280d 3487 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3488 tmps = SvPV_nolen_const(*svp);
35ae6b54 3489 }
72f496dc 3490 else {
389ec635 3491 PUSHi(0);
b7ab37f8 3492 TAINT_PROPER("chdir");
389ec635
MS		 3493 RETURN;
3494 }
8ea155d1 3495 }
8ea155d1 3496
a0d0e21e 3497 TAINT_PROPER("chdir");
c4aca7d0
GA		 3498 if (gv) {
3499#ifdef HAS_FCHDIR
9a957fbc 3500 IO* const io = GvIO(gv);
c4aca7d0 3501 if (io) {
c08d6937 3502 if (IoDIRP(io)) {
3497a01f 3503 PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
c08d6937
SP		 3504 } else if (IoIFP(io)) {
3505 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
c4aca7d0
GA		 3506 }
3507 else {
51087808 3508 report_evil_fh(gv);
4dc171f0 3509 SETERRNO(EBADF, RMS_IFI);
c4aca7d0
GA		 3510 PUSHi(0);
3511 }
3512 }
3513 else {
51087808 3514 report_evil_fh(gv);
4dc171f0 3515 SETERRNO(EBADF,RMS_IFI);
c4aca7d0
GA		 3516 PUSHi(0);
3517 }
3518#else
3519 DIE(aTHX_ PL_no_func, "fchdir");
3520#endif
3521 }
3522 else
b8ffc8df 3523 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3524#ifdef VMS
3525 /* Clear the DEFAULT element of ENV so we'll get the new value
3526 * in the future. */
6b88bc9c 3527 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3528#endif
a0d0e21e
LW		 3529 RETURN;
3530}
3531
3532PP(pp_chown)
3533{
97aff369 3534 dVAR; dSP; dMARK; dTARGET;
605b9385 3535 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
76ffd3b9 3536
a0d0e21e 3537 SP = MARK;
b59aed67 3538 XPUSHi(value);
a0d0e21e 3539 RETURN;
a0d0e21e
LW		 3540}
3541
3542PP(pp_chroot)
3543{
a0d0e21e 3544#ifdef HAS_CHROOT
97aff369 3545 dVAR; dSP; dTARGET;
7452cf6a 3546 char * const tmps = POPpx;
a0d0e21e
LW		 3547 TAINT_PROPER("chroot");
3548 PUSHi( chroot(tmps) >= 0 );
3549 RETURN;
3550#else
cea2e8a9 3551 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3552#endif
3553}
3554
a0d0e21e
LW		 3555PP(pp_rename)
3556{
97aff369 3557 dVAR; dSP; dTARGET;
a0d0e21e 3558 int anum;
7452cf6a
AL		 3559 const char * const tmps2 = POPpconstx;
3560 const char * const tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3561 TAINT_PROPER("rename");
3562#ifdef HAS_RENAME
baed7233 3563 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3564#else
6b88bc9c 3565 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3566 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3567 anum = 1;
3568 else {
3654eb6c 3569 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3570 (void)UNLINK(tmps2);
3571 if (!(anum = link(tmps, tmps2)))
3572 anum = UNLINK(tmps);
3573 }
a0d0e21e
LW		 3574 }
3575#endif
3576 SETi( anum >= 0 );
3577 RETURN;
3578}
3579
ce6987d0 3580#if defined(HAS_LINK) || defined(HAS_SYMLINK)
a0d0e21e
LW		 3581PP(pp_link)
3582{
97aff369 3583 dVAR; dSP; dTARGET;
ce6987d0
NC		 3584 const int op_type = PL_op->op_type;
3585 int result;
a0d0e21e 3586
ce6987d0
NC		 3587# ifndef HAS_LINK
3588 if (op_type == OP_LINK)
3589 DIE(aTHX_ PL_no_func, "link");
3590# endif
3591# ifndef HAS_SYMLINK
3592 if (op_type == OP_SYMLINK)
3593 DIE(aTHX_ PL_no_func, "symlink");
3594# endif
3595
3596 {
7452cf6a
AL		 3597 const char * const tmps2 = POPpconstx;
3598 const char * const tmps = SvPV_nolen_const(TOPs);
ce6987d0
NC		 3599 TAINT_PROPER(PL_op_desc[op_type]);
3600 result =
3601# if defined(HAS_LINK)
3602# if defined(HAS_SYMLINK)
3603 /* Both present - need to choose which. */
3604 (op_type == OP_LINK) ?
3605 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3606# else
4a8ebb7f
SH		 3607 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3608 PerlLIO_link(tmps, tmps2);
ce6987d0
NC		 3609# endif
3610# else
3611# if defined(HAS_SYMLINK)
4a8ebb7f
SH		 3612 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3613 symlink(tmps, tmps2);
ce6987d0
NC		 3614# endif
3615# endif
3616 }
3617
3618 SETi( result >= 0 );
a0d0e21e 3619 RETURN;
ce6987d0 3620}
a0d0e21e 3621#else
ce6987d0
NC		 3622PP(pp_link)
3623{
3624 /* Have neither. */
3625 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 3626}
ce6987d0 3627#endif
a0d0e21e
LW		 3628
3629PP(pp_readlink)
3630{
97aff369 3631 dVAR;
76ffd3b9 3632 dSP;
a0d0e21e 3633#ifdef HAS_SYMLINK
76ffd3b9 3634 dTARGET;
10516c54 3635 const char *tmps;
46fc3d4c 3636 char buf[MAXPATHLEN];
a0d0e21e 3637 int len;
46fc3d4c 3638
fb73857a 3639#ifndef INCOMPLETE_TAINTS
3640 TAINT;
3641#endif
10516c54 3642 tmps = POPpconstx;
97dcea33 3643 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3644 if (len < 0)
3645 RETPUSHUNDEF;
3646 PUSHp(buf, len);
3647 RETURN;
3648#else
3649 EXTEND(SP, 1);
3650 RETSETUNDEF; /* just pretend it's a normal file */
3651#endif
3652}
3653
3654#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3655STATIC int
b464bac0 3656S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3657{
b464bac0 3658 char * const save_filename = filename;
1e422769 3659 char *cmdline;
3660 char *s;
760ac839 3661 PerlIO *myfp;
1e422769 3662 int anum = 1;
6fca0082 3663 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
a0d0e21e 3664
7918f24d
NC		 3665 PERL_ARGS_ASSERT_DOONELINER;
3666
6fca0082
SP		 3667 Newx(cmdline, size, char);
3668 my_strlcpy(cmdline, cmd, size);
3669 my_strlcat(cmdline, " ", size);
1e422769 3670 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3671 *s++ = '\\';
3672 *s++ = *filename++;
3673 }
d1307786
JH		 3674 if (s - cmdline < size)
3675 my_strlcpy(s, " 2>&1", size - (s - cmdline));
6ad3d225 3676 myfp = PerlProc_popen(cmdline, "r");
1e422769 3677 Safefree(cmdline);
3678
a0d0e21e 3679 if (myfp) {
0bcc34c2 3680 SV * const tmpsv = sv_newmortal();
6b88bc9c 3681 /* Need to save/restore 'PL_rs' ?? */
760ac839 3682 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3683 (void)PerlProc_pclose(myfp);
bd61b366 3684 if (s != NULL) {
1e422769 3685 int e;
3686 for (e = 1;
a0d0e21e 3687#ifdef HAS_SYS_ERRLIST
1e422769 3688 e <= sys_nerr
3689#endif
3690 ; e++)
3691 {
3692 /* you don't see this */
6136c704 3693 const char * const errmsg =
1e422769 3694#ifdef HAS_SYS_ERRLIST
3695 sys_errlist[e]
a0d0e21e 3696#else
1e422769 3697 strerror(e)
a0d0e21e 3698#endif
1e422769 3699 ;
3700 if (!errmsg)
3701 break;
3702 if (instr(s, errmsg)) {
3703 SETERRNO(e,0);
3704 return 0;
3705 }
a0d0e21e 3706 }
748a9306 3707 SETERRNO(0,0);
a0d0e21e
LW		 3708#ifndef EACCES
3709#define EACCES EPERM
3710#endif
1e422769 3711 if (instr(s, "cannot make"))
93189314 3712 SETERRNO(EEXIST,RMS_FEX);
1e422769 3713 else if (instr(s, "existing file"))
93189314 3714 SETERRNO(EEXIST,RMS_FEX);
1e422769 3715 else if (instr(s, "ile exists"))
93189314 3716 SETERRNO(EEXIST,RMS_FEX);
1e422769 3717 else if (instr(s, "non-exist"))
93189314 3718 SETERRNO(ENOENT,RMS_FNF);
1e422769 3719 else if (instr(s, "does not exist"))
93189314 3720 SETERRNO(ENOENT,RMS_FNF);
1e422769 3721 else if (instr(s, "not empty"))
93189314 3722 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3723 else if (instr(s, "cannot access"))
93189314 3724 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3725 else
93189314 3726 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3727 return 0;
3728 }
3729 else { /* some mkdirs return no failure indication */
6b88bc9c 3730 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3731 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3732 anum = !anum;
3733 if (anum)
748a9306 3734 SETERRNO(0,0);
a0d0e21e 3735 else
93189314 3736 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3737 }
3738 return anum;
3739 }
3740 else
3741 return 0;
3742}
3743#endif
3744
0c54f65b
RGS		 3745/* This macro removes trailing slashes from a directory name.
3746 * Different operating and file systems take differently to
3747 * trailing slashes. According to POSIX 1003.1 1996 Edition
3748 * any number of trailing slashes should be allowed.
3749 * Thusly we snip them away so that even non-conforming
3750 * systems are happy.
3751 * We should probably do this "filtering" for all
3752 * the functions that expect (potentially) directory names:
3753 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3754 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3755
5c144d81 3756#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3757 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3758 do { \
3759 (len)--; \
3760 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3761 (tmps) = savepvn((tmps), (len)); \
3762 (copy) = TRUE; \
3763 }
3764
a0d0e21e
LW		 3765PP(pp_mkdir)
3766{
97aff369 3767 dVAR; dSP; dTARGET;
df25ddba 3768 STRLEN len;
5c144d81 3769 const char *tmps;
df25ddba 3770 bool copy = FALSE;
7452cf6a 3771 const int mode = (MAXARG > 1) ? POPi : 0777;
5a211162 3772
0c54f65b 3773 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3774
3775 TAINT_PROPER("mkdir");
3776#ifdef HAS_MKDIR
b8ffc8df 3777 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e 3778#else
0bcc34c2
AL		 3779 {
3780 int oldumask;
a0d0e21e 3781 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3782 oldumask = PerlLIO_umask(0);
3783 PerlLIO_umask(oldumask);
3784 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
0bcc34c2 3785 }
a0d0e21e 3786#endif
df25ddba
JH		 3787 if (copy)
3788 Safefree(tmps);
a0d0e21e
LW		 3789 RETURN;
3790}
3791
3792PP(pp_rmdir)
3793{
97aff369 3794 dVAR; dSP; dTARGET;
0c54f65b 3795 STRLEN len;
5c144d81 3796 const char *tmps;
0c54f65b 3797 bool copy = FALSE;
a0d0e21e 3798
0c54f65b 3799 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3800 TAINT_PROPER("rmdir");
3801#ifdef HAS_RMDIR
b8ffc8df 3802 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3803#else
0c54f65b 3804 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3805#endif
0c54f65b
RGS		 3806 if (copy)
3807 Safefree(tmps);
a0d0e21e
LW		 3808 RETURN;
3809}
3810
3811/* Directory calls. */
3812
3813PP(pp_open_dir)
3814{
a0d0e21e 3815#if defined(Direntry_t) && defined(HAS_READDIR)
97aff369 3816 dVAR; dSP;
7452cf6a 3817 const char * const dirname = POPpconstx;
159b6efe 3818 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3819 register IO * const io = GvIOn(gv);
a0d0e21e
LW		 3820
3821 if (!io)
3822 goto nope;
3823
a2a5de95 3824 if ((IoIFP(io) || IoOFP(io)))
d1d15184
NC		 3825 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
3826 "Opening filehandle %s also as a directory",
3827 GvENAME(gv));
a0d0e21e 3828 if (IoDIRP(io))
6ad3d225 3829 PerlDir_close(IoDIRP(io));
b8ffc8df 3830 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3831 goto nope;
3832
3833 RETPUSHYES;
3834nope:
3835 if (!errno)
93189314 3836 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3837 RETPUSHUNDEF;
3838#else
cea2e8a9 3839 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3840#endif
3841}
3842
3843PP(pp_readdir)
3844{
34b7f128
AMS		 3845#if !defined(Direntry_t) || !defined(HAS_READDIR)
3846 DIE(aTHX_ PL_no_dir_func, "readdir");
3847#else
fd8cd3a3 3848#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3849 Direntry_t *readdir (DIR *);
a0d0e21e 3850#endif
97aff369 3851 dVAR;
34b7f128
AMS		 3852 dSP;
3853
3854 SV *sv;
f54cb97a 3855 const I32 gimme = GIMME;
159b6efe 3856 GV * const gv = MUTABLE_GV(POPs);
7452cf6a
AL		 3857 register const Direntry_t *dp;
3858 register IO * const io = GvIOn(gv);
a0d0e21e 3859
3b7fbd4a 3860 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3861 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3862 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3b7fbd4a
SP		 3863 goto nope;
3864 }
a0d0e21e 3865
34b7f128
AMS		 3866 do {
3867 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3868 if (!dp)
3869 break;
a0d0e21e 3870#ifdef DIRNAMLEN
34b7f128 3871 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3872#else
34b7f128 3873 sv = newSVpv(dp->d_name, 0);
fb73857a 3874#endif
3875#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3876 if (!(IoFLAGS(io) & IOf_UNTAINT))
3877 SvTAINTED_on(sv);
a0d0e21e 3878#endif
6e449a3a 3879 mXPUSHs(sv);
a79db61d 3880 } while (gimme == G_ARRAY);
34b7f128
AMS		 3881
3882 if (!dp && gimme != G_ARRAY)
3883 goto nope;
3884
a0d0e21e
LW		 3885 RETURN;
3886
3887nope:
3888 if (!errno)
93189314 3889 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3890 if (GIMME == G_ARRAY)
3891 RETURN;
3892 else
3893 RETPUSHUNDEF;
a0d0e21e
LW		 3894#endif
3895}
3896
3897PP(pp_telldir)
3898{
a0d0e21e 3899#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3900 dVAR; dSP; dTARGET;
968dcd91
JH		 3901 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3902 /* XXX netbsd still seemed to.
3903 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3904 --JHI 1999-Feb-02 */
3905# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3906 long telldir (DIR *);
dfe9444c 3907# endif
159b6efe 3908 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3909 register IO * const io = GvIOn(gv);
a0d0e21e 3910
abc7ecad 3911 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3912 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3913 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3914 goto nope;
3915 }
a0d0e21e 3916
6ad3d225 3917 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3918 RETURN;
3919nope:
3920 if (!errno)
93189314 3921 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3922 RETPUSHUNDEF;
3923#else
cea2e8a9 3924 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3925#endif
3926}
3927
3928PP(pp_seekdir)
3929{
a0d0e21e 3930#if defined(HAS_SEEKDIR) || defined(seekdir)
97aff369 3931 dVAR; dSP;
7452cf6a 3932 const long along = POPl;
159b6efe 3933 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3934 register IO * const io = GvIOn(gv);
a0d0e21e 3935
abc7ecad 3936 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3937 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3938 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3939 goto nope;
3940 }
6ad3d225 3941 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3942
3943 RETPUSHYES;
3944nope:
3945 if (!errno)
93189314 3946 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3947 RETPUSHUNDEF;
3948#else
cea2e8a9 3949 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3950#endif
3951}
3952
3953PP(pp_rewinddir)
3954{
a0d0e21e 3955#if defined(HAS_REWINDDIR) || defined(rewinddir)
97aff369 3956 dVAR; dSP;
159b6efe 3957 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3958 register IO * const io = GvIOn(gv);
a0d0e21e 3959
abc7ecad 3960 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3961 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3962 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
a0d0e21e 3963 goto nope;
abc7ecad 3964 }
6ad3d225 3965 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3966 RETPUSHYES;
3967nope:
3968 if (!errno)
93189314 3969 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3970 RETPUSHUNDEF;
3971#else
cea2e8a9 3972 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3973#endif
3974}
3975
3976PP(pp_closedir)
3977{
a0d0e21e 3978#if defined(Direntry_t) && defined(HAS_READDIR)
97aff369 3979 dVAR; dSP;
159b6efe 3980 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 3981 register IO * const io = GvIOn(gv);
a0d0e21e 3982
abc7ecad 3983 if (!io || !IoDIRP(io)) {
a2a5de95
NC		 3984 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
3985 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
abc7ecad
SP		 3986 goto nope;
3987 }
a0d0e21e 3988#ifdef VOID_CLOSEDIR
6ad3d225 3989 PerlDir_close(IoDIRP(io));
a0d0e21e 3990#else
6ad3d225 3991 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3992 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3993 goto nope;
748a9306 3994 }
a0d0e21e
LW		 3995#endif
3996 IoDIRP(io) = 0;
3997
3998 RETPUSHYES;
3999nope:
4000 if (!errno)
93189314 4001 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4002 RETPUSHUNDEF;
4003#else
cea2e8a9 4004 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4005#endif
4006}
4007
4008/* Process control. */
4009
4010PP(pp_fork)
4011{
44a8e56a 4012#ifdef HAS_FORK
97aff369 4013 dVAR; dSP; dTARGET;
761237fe 4014 Pid_t childpid;
a0d0e21e
LW		 4015
4016 EXTEND(SP, 1);
45bc9206 4017 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4018 childpid = PerlProc_fork();
a0d0e21e
LW		 4019 if (childpid < 0)
4020 RETSETUNDEF;
4021 if (!childpid) {
4d76a344
RGS		 4022#ifdef THREADS_HAVE_PIDS
4023 PL_ppid = (IV)getppid();
4024#endif
ca0c25f6 4025#ifdef PERL_USES_PL_PIDSTATUS
3280af22 4026 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
ca0c25f6 4027#endif
a0d0e21e
LW		 4028 }
4029 PUSHi(childpid);
4030 RETURN;
4031#else
146174a9 4032# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4033 dSP; dTARGET;
146174a9
CB		 4034 Pid_t childpid;
4035
4036 EXTEND(SP, 1);
4037 PERL_FLUSHALL_FOR_CHILD;
4038 childpid = PerlProc_fork();
60fa28ff
GS		 4039 if (childpid == -1)
4040 RETSETUNDEF;
146174a9
CB		 4041 PUSHi(childpid);
4042 RETURN;
4043# else
0322a713 4044 DIE(aTHX_ PL_no_func, "fork");
146174a9 4045# endif
a0d0e21e
LW		 4046#endif
4047}
4048
4049PP(pp_wait)
4050{
e37778c2 4051#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
97aff369 4052 dVAR; dSP; dTARGET;
761237fe 4053 Pid_t childpid;
a0d0e21e 4054 int argflags;
a0d0e21e 4055
4ffa73a3
JH		 4056 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4057 childpid = wait4pid(-1, &argflags, 0);
4058 else {
4059 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4060 errno == EINTR) {
4061 PERL_ASYNC_CHECK();
4062 }
0a0ada86 4063 }
68a29c53
GS		 4064# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4065 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4066 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4067# else
2fbb330f 4068 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4069# endif
44a8e56a 4070 XPUSHi(childpid);
a0d0e21e
LW		 4071 RETURN;
4072#else
0322a713 4073 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4074#endif
4075}
4076
4077PP(pp_waitpid)
4078{
e37778c2 4079#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__)
97aff369 4080 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4081 const int optype = POPi;
4082 const Pid_t pid = TOPi;
2ec0bfb3 4083 Pid_t result;
a0d0e21e 4084 int argflags;
a0d0e21e 4085
4ffa73a3 4086 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4087 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4088 else {
2ec0bfb3 4089 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4090 errno == EINTR) {
4091 PERL_ASYNC_CHECK();
4092 }
0a0ada86 4093 }
68a29c53
GS		 4094# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4095 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4096 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4097# else
2fbb330f 4098 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4099# endif
2ec0bfb3 4100 SETi(result);
a0d0e21e
LW		 4101 RETURN;
4102#else
0322a713 4103 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4104#endif
4105}
4106
4107PP(pp_system)
4108{
97aff369 4109 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
9c12f1e5
RGS		 4110#if defined(__LIBCATAMOUNT__)
4111 PL_statusvalue = -1;
4112 SP = ORIGMARK;
4113 XPUSHi(-1);
4114#else
a0d0e21e 4115 I32 value;
76ffd3b9 4116 int result;
a0d0e21e 4117
bbd7eb8a
RD		 4118 if (PL_tainting) {
4119 TAINT_ENV();
4120 while (++MARK <= SP) {
10516c54 4121 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4122 if (PL_tainted)
bbd7eb8a
RD		 4123 break;
4124 }
4125 MARK = ORIGMARK;
5a445156 4126 TAINT_PROPER("system");
a0d0e21e 4127 }
45bc9206 4128 PERL_FLUSHALL_FOR_CHILD;
273b0206 4129#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4130 {
eb160463
GS		 4131 Pid_t childpid;
4132 int pp[2];
27da23d5 4133 I32 did_pipes = 0;
eb160463
GS		 4134
4135 if (PerlProc_pipe(pp) >= 0)
4136 did_pipes = 1;
4137 while ((childpid = PerlProc_fork()) == -1) {
4138 if (errno != EAGAIN) {
4139 value = -1;
4140 SP = ORIGMARK;
b59aed67 4141 XPUSHi(value);
eb160463
GS		 4142 if (did_pipes) {
4143 PerlLIO_close(pp[0]);
4144 PerlLIO_close(pp[1]);
4145 }
4146 RETURN;
4147 }
4148 sleep(5);
4149 }
4150 if (childpid > 0) {
4151 Sigsave_t ihand,qhand; /* place to save signals during system() */
4152 int status;
4153
4154 if (did_pipes)
4155 PerlLIO_close(pp[1]);
64ca3a65 4156#ifndef PERL_MICRO
8aad04aa
JH		 4157 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4158 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4159#endif
eb160463
GS		 4160 do {
4161 result = wait4pid(childpid, &status, 0);
4162 } while (result == -1 && errno == EINTR);
64ca3a65 4163#ifndef PERL_MICRO
eb160463
GS		 4164 (void)rsignal_restore(SIGINT, &ihand);
4165 (void)rsignal_restore(SIGQUIT, &qhand);
4166#endif
37038d91 4167 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4168 do_execfree(); /* free any memory child malloced on fork */
4169 SP = ORIGMARK;
4170 if (did_pipes) {
4171 int errkid;
bb7a0f54
MHM		 4172 unsigned n = 0;
4173 SSize_t n1;
eb160463
GS		 4174
4175 while (n < sizeof(int)) {
4176 n1 = PerlLIO_read(pp[0],
4177 (void*)(((char*)&errkid)+n),
4178 (sizeof(int)) - n);
4179 if (n1 <= 0)
4180 break;
4181 n += n1;
4182 }
4183 PerlLIO_close(pp[0]);
4184 if (n) { /* Error */
4185 if (n != sizeof(int))
4186 DIE(aTHX_ "panic: kid popen errno read");
4187 errno = errkid; /* Propagate errno from kid */
37038d91 4188 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4189 }
4190 }
b59aed67 4191 XPUSHi(STATUS_CURRENT);
eb160463
GS		 4192 RETURN;
4193 }
4194 if (did_pipes) {
4195 PerlLIO_close(pp[0]);
d5a9bfb0 4196#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4197 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4198#endif
eb160463 4199 }
e0a1f643 4200 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4201 SV * const really = *++MARK;
e0a1f643
JH		 4202 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4203 }
4204 else if (SP - MARK != 1)
a0714e2c 4205 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
e0a1f643 4206 else {
8c074e2a 4207 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4208 }
4209 PerlProc__exit(-1);
d5a9bfb0 4210 }
c3293030 4211#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4212 PL_statusvalue = 0;
4213 result = 0;
911d147d 4214 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4215 SV * const really = *++MARK;
9ec7171b 4216# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
54725af6
GS		 4217 value = (I32)do_aspawn(really, MARK, SP);
4218# else
c5be433b 4219 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4220# endif
a0d0e21e 4221 }
54725af6 4222 else if (SP - MARK != 1) {
9ec7171b 4223# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS)
a0714e2c 4224 value = (I32)do_aspawn(NULL, MARK, SP);
54725af6 4225# else
a0714e2c 4226 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
54725af6
GS		 4227# endif
4228 }
a0d0e21e 4229 else {
8c074e2a 4230 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4231 }
922b1888
GS		 4232 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4233 result = 1;
2fbb330f 4234 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4235 do_execfree();
4236 SP = ORIGMARK;
b59aed67 4237 XPUSHi(result ? value : STATUS_CURRENT);
9c12f1e5
RGS		 4238#endif /* !FORK or VMS or OS/2 */
4239#endif
a0d0e21e
LW		 4240 RETURN;
4241}
4242
4243PP(pp_exec)
4244{
97aff369 4245 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4246 I32 value;
4247
bbd7eb8a
RD		 4248 if (PL_tainting) {
4249 TAINT_ENV();
4250 while (++MARK <= SP) {
10516c54 4251 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4252 if (PL_tainted)
bbd7eb8a
RD		 4253 break;
4254 }
4255 MARK = ORIGMARK;
5a445156 4256 TAINT_PROPER("exec");
bbd7eb8a 4257 }
45bc9206 4258 PERL_FLUSHALL_FOR_CHILD;
533c011a 4259 if (PL_op->op_flags & OPf_STACKED) {
0bcc34c2 4260 SV * const really = *++MARK;
a0d0e21e
LW		 4261 value = (I32)do_aexec(really, MARK, SP);
4262 }
4263 else if (SP - MARK != 1)
4264#ifdef VMS
a0714e2c 4265 value = (I32)vms_do_aexec(NULL, MARK, SP);
a0d0e21e 4266#else
092bebab
JH		 4267# ifdef __OPEN_VM
4268 {
a0714e2c 4269 (void ) do_aspawn(NULL, MARK, SP);
092bebab
JH		 4270 value = 0;
4271 }
4272# else
a0714e2c 4273 value = (I32)do_aexec(NULL, MARK, SP);
092bebab 4274# endif
a0d0e21e
LW		 4275#endif
4276 else {
a0d0e21e 4277#ifdef VMS
8c074e2a 4278 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4279#else
092bebab 4280# ifdef __OPEN_VM
8c074e2a 4281 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4282 value = 0;
4283# else
5dd60a52 4284 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4285# endif
a0d0e21e
LW		 4286#endif
4287 }
146174a9 4288
a0d0e21e 4289 SP = ORIGMARK;
b59aed67 4290 XPUSHi(value);
a0d0e21e
LW		 4291 RETURN;
4292}
4293
a0d0e21e
LW		 4294PP(pp_getppid)
4295{
4296#ifdef HAS_GETPPID
97aff369 4297 dVAR; dSP; dTARGET;
4d76a344 4298# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4299 if (PL_ppid != 1 && getppid() == 1)
4300 /* maybe the parent process has died. Refresh ppid cache */
4301 PL_ppid = 1;
4d76a344
RGS		 4302 XPUSHi( PL_ppid );
4303# else
a0d0e21e 4304 XPUSHi( getppid() );
4d76a344 4305# endif
a0d0e21e
LW		 4306 RETURN;
4307#else
cea2e8a9 4308 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4309#endif
4310}
4311
4312PP(pp_getpgrp)
4313{
4314#ifdef HAS_GETPGRP
97aff369 4315 dVAR; dSP; dTARGET;
9853a804 4316 Pid_t pgrp;
0bcc34c2 4317 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
a0d0e21e 4318
c3293030 4319#ifdef BSD_GETPGRP
9853a804 4320 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4321#else
146174a9 4322 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4323 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4324 pgrp = getpgrp();
a0d0e21e 4325#endif
9853a804 4326 XPUSHi(pgrp);
a0d0e21e
LW		 4327 RETURN;
4328#else
cea2e8a9 4329 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4330#endif
4331}
4332
4333PP(pp_setpgrp)
4334{
4335#ifdef HAS_SETPGRP
97aff369 4336 dVAR; dSP; dTARGET;
d8a83dd3
JH		 4337 Pid_t pgrp;
4338 Pid_t pid;
a0d0e21e
LW		 4339 if (MAXARG < 2) {
4340 pgrp = 0;
4341 pid = 0;
1f200948 4342 XPUSHi(-1);
a0d0e21e
LW		 4343 }
4344 else {
4345 pgrp = POPi;
4346 pid = TOPi;
4347 }
4348
4349 TAINT_PROPER("setpgrp");
c3293030
IZ		 4350#ifdef BSD_SETPGRP
4351 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4352#else
146174a9
CB		 4353 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4354 || (pid != 0 && pid != PerlProc_getpid()))
4355 {
4356 DIE(aTHX_ "setpgrp can't take arguments");
4357 }
a0d0e21e
LW		 4358 SETi( setpgrp() >= 0 );
4359#endif /* USE_BSDPGRP */
4360 RETURN;
4361#else
cea2e8a9 4362 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4363#endif
4364}
4365
8b079db6 4366#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || (__GLIBC__ > 2))
5baa2e4f
RB		 4367# define PRIORITY_WHICH_T(which) (__priority_which_t)which
4368#else
4369# define PRIORITY_WHICH_T(which) which
4370#endif
4371
a0d0e21e
LW		 4372PP(pp_getpriority)
4373{
a0d0e21e 4374#ifdef HAS_GETPRIORITY
97aff369 4375 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4376 const int who = POPi;
4377 const int which = TOPi;
5baa2e4f 4378 SETi( getpriority(PRIORITY_WHICH_T(which), who) );
a0d0e21e
LW		 4379 RETURN;
4380#else
cea2e8a9 4381 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4382#endif
4383}
4384
4385PP(pp_setpriority)
4386{
a0d0e21e 4387#ifdef HAS_SETPRIORITY
97aff369 4388 dVAR; dSP; dTARGET;
0bcc34c2
AL		 4389 const int niceval = POPi;
4390 const int who = POPi;
4391 const int which = TOPi;
a0d0e21e 4392 TAINT_PROPER("setpriority");
5baa2e4f 4393 SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 );
a0d0e21e
LW		 4394 RETURN;
4395#else
cea2e8a9 4396 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4397#endif
4398}
4399
5baa2e4f
RB		 4400#undef PRIORITY_WHICH_T
4401
a0d0e21e
LW		 4402/* Time calls. */
4403
4404PP(pp_time)
4405{
97aff369 4406 dVAR; dSP; dTARGET;
cbdc8872 4407#ifdef BIG_TIME
4608196e 4408 XPUSHn( time(NULL) );
cbdc8872 4409#else
4608196e 4410 XPUSHi( time(NULL) );
cbdc8872 4411#endif
a0d0e21e
LW		 4412 RETURN;
4413}
4414
a0d0e21e
LW		 4415PP(pp_tms)
4416{
9cad6237 4417#ifdef HAS_TIMES
97aff369 4418 dVAR;
39644a26 4419 dSP;
a0d0e21e 4420 EXTEND(SP, 4);
a0d0e21e 4421#ifndef VMS
3280af22 4422 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4423#else
6b88bc9c 4424 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4425 /* struct tms, though same data */
4426 /* is returned. */
a0d0e21e
LW		 4427#endif
4428
6e449a3a 4429 mPUSHn(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick);
a0d0e21e 4430 if (GIMME == G_ARRAY) {
6e449a3a
MHM		 4431 mPUSHn(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick);
4432 mPUSHn(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick);
4433 mPUSHn(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick);
a0d0e21e
LW		 4434 }
4435 RETURN;
9cad6237 4436#else
2f42fcb0
JH		 4437# ifdef PERL_MICRO
4438 dSP;
6e449a3a 4439 mPUSHn(0.0);
2f42fcb0
JH		 4440 EXTEND(SP, 4);
4441 if (GIMME == G_ARRAY) {
6e449a3a
MHM		 4442 mPUSHn(0.0);
4443 mPUSHn(0.0);
4444 mPUSHn(0.0);
2f42fcb0
JH		 4445 }
4446 RETURN;
4447# else
9cad6237 4448 DIE(aTHX_ "times not implemented");
2f42fcb0 4449# endif
55497cff 4450#endif /* HAS_TIMES */
a0d0e21e
LW		 4451}
4452
fc003d4b
MS		 4453/* The 32 bit int year limits the times we can represent to these
4454 boundaries with a few days wiggle room to account for time zone
4455 offsets
4456*/
4457/* Sat Jan 3 00:00:00 -2147481748 */
4458#define TIME_LOWER_BOUND -67768100567755200.0
4459/* Sun Dec 29 12:00:00 2147483647 */
4460#define TIME_UPPER_BOUND 67767976233316800.0
4461
a0d0e21e
LW		 4462PP(pp_gmtime)
4463{
97aff369 4464 dVAR;
39644a26 4465 dSP;
a272e669 4466 Time64_T when;
806a119a
MS		 4467 struct TM tmbuf;
4468 struct TM *err;
a8cb0261 4469 const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime";
27da23d5
JH		 4470 static const char * const dayname[] =
4471 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4472 static const char * const monname[] =
4473 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4474 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e 4475
a272e669
MS		 4476 if (MAXARG < 1) {
4477 time_t now;
4478 (void)time(&now);
4479 when = (Time64_T)now;
4480 }
7315c673 4481 else {
7eb4f9b7 4482 NV input = Perl_floor(POPn);
8efababc 4483 when = (Time64_T)input;
a2a5de95
NC		 4484 if (when != input) {
4485 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4486 "%s(%.0" NVff ") too large", opname, input);
7315c673
MS		 4487 }
4488 }
a0d0e21e 4489
fc003d4b
MS		 4490 if ( TIME_LOWER_BOUND > when ) {
4491 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4492 "%s(%.0" NVff ") too small", opname, when);
fc003d4b
MS		 4493 err = NULL;
4494 }
4495 else if( when > TIME_UPPER_BOUND ) {
4496 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4497 "%s(%.0" NVff ") too large", opname, when);
fc003d4b
MS		 4498 err = NULL;
4499 }
4500 else {
4501 if (PL_op->op_type == OP_LOCALTIME)
4502 err = S_localtime64_r(&when, &tmbuf);
4503 else
4504 err = S_gmtime64_r(&when, &tmbuf);
4505 }
a0d0e21e 4506
a2a5de95 4507 if (err == NULL) {
8efababc 4508 /* XXX %lld broken for quads */
a2a5de95 4509 Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
7eb4f9b7 4510 "%s(%.0" NVff ") failed", opname, when);
5b6366c2 4511 }
a0d0e21e 4512
a272e669 4513 if (GIMME != G_ARRAY) { /* scalar context */
46fc3d4c 4514 SV *tsv;
8efababc
MS		 4515 /* XXX newSVpvf()'s %lld type is broken, so cheat with a double */
4516 double year = (double)tmbuf.tm_year + 1900;
4517
9a5ff6d9
AB		 4518 EXTEND(SP, 1);
4519 EXTEND_MORTAL(1);
a272e669 4520 if (err == NULL)
a0d0e21e 4521 RETPUSHUNDEF;
a272e669 4522
8efababc 4523 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %.0f",
a272e669
MS		 4524 dayname[tmbuf.tm_wday],
4525 monname[tmbuf.tm_mon],
4526 tmbuf.tm_mday,
4527 tmbuf.tm_hour,
4528 tmbuf.tm_min,
4529 tmbuf.tm_sec,
8efababc 4530 year);
6e449a3a 4531 mPUSHs(tsv);
a0d0e21e 4532 }
a272e669
MS		 4533 else { /* list context */
4534 if ( err == NULL )
4535 RETURN;
4536
9a5ff6d9
AB		 4537 EXTEND(SP, 9);
4538 EXTEND_MORTAL(9);
a272e669
MS		 4539 mPUSHi(tmbuf.tm_sec);
4540 mPUSHi(tmbuf.tm_min);
4541 mPUSHi(tmbuf.tm_hour);
4542 mPUSHi(tmbuf.tm_mday);
4543 mPUSHi(tmbuf.tm_mon);
7315c673 4544 mPUSHn(tmbuf.tm_year);
a272e669
MS		 4545 mPUSHi(tmbuf.tm_wday);
4546 mPUSHi(tmbuf.tm_yday);
4547 mPUSHi(tmbuf.tm_isdst);
a0d0e21e
LW		 4548 }
4549 RETURN;
4550}
4551
4552PP(pp_alarm)
4553{
9cad6237 4554#ifdef HAS_ALARM
97aff369 4555 dVAR; dSP; dTARGET;
a0d0e21e 4556 int anum;
a0d0e21e
LW		 4557 anum = POPi;
4558 anum = alarm((unsigned int)anum);
a0d0e21e
LW		 4559 if (anum < 0)
4560 RETPUSHUNDEF;
c6419e06 4561 PUSHi(anum);
a0d0e21e
LW		 4562 RETURN;
4563#else
0322a713 4564 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4565#endif
4566}
4567
4568PP(pp_sleep)
4569{
97aff369 4570 dVAR; dSP; dTARGET;
a0d0e21e
LW		 4571 I32 duration;
4572 Time_t lasttime;
4573 Time_t when;
4574
4575 (void)time(&lasttime);
4576 if (MAXARG < 1)
76e3520e 4577 PerlProc_pause();
a0d0e21e
LW		 4578 else {
4579 duration = POPi;
76e3520e 4580 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4581 }
4582 (void)time(&when);
4583 XPUSHi(when - lasttime);
4584 RETURN;
4585}
4586
4587/* Shared memory. */
c9f7ac20 4588/* Merged with some message passing. */
a0d0e21e 4589
a0d0e21e
LW		 4590PP(pp_shmwrite)
4591{
4592#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4593 dVAR; dSP; dMARK; dTARGET;
c9f7ac20
NC		 4594 const int op_type = PL_op->op_type;
4595 I32 value;
a0d0e21e 4596
c9f7ac20
NC		 4597 switch (op_type) {
4598 case OP_MSGSND:
4599 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4600 break;
4601 case OP_MSGRCV:
4602 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4603 break;
ca563b4e
NC		 4604 case OP_SEMOP:
4605 value = (I32)(do_semop(MARK, SP) >= 0);
4606 break;
c9f7ac20
NC		 4607 default:
4608 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4609 break;
4610 }
a0d0e21e 4611
a0d0e21e
LW		 4612 SP = MARK;
4613 PUSHi(value);
4614 RETURN;
4615#else
897d3989 4616 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4617#endif
4618}
4619
4620/* Semaphores. */
4621
4622PP(pp_semget)
4623{
4624#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4625 dVAR; dSP; dMARK; dTARGET;
0bcc34c2 4626 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4627 SP = MARK;
4628 if (anum == -1)
4629 RETPUSHUNDEF;
4630 PUSHi(anum);
4631 RETURN;
4632#else
cea2e8a9 4633 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4634#endif
4635}
4636
4637PP(pp_semctl)
4638{
4639#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
97aff369 4640 dVAR; dSP; dMARK; dTARGET;
0bcc34c2 4641 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4642 SP = MARK;
4643 if (anum == -1)
4644 RETSETUNDEF;
4645 if (anum != 0) {
4646 PUSHi(anum);
4647 }
4648 else {
8903cb82 4649 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4650 }
4651 RETURN;
4652#else
897d3989 4653 return Perl_pp_semget(aTHX);
a0d0e21e
LW		 4654#endif
4655}
4656
5cdc4e88
NC		 4657/* I can't const this further without getting warnings about the types of
4658 various arrays passed in from structures. */
4659static SV *
4660S_space_join_names_mortal(pTHX_ char *const *array)
4661{
7c58897d 4662 SV *target;
5cdc4e88 4663
7918f24d
NC		 4664 PERL_ARGS_ASSERT_SPACE_JOIN_NAMES_MORTAL;
4665
5cdc4e88 4666 if (array && *array) {
84bafc02 4667 target = newSVpvs_flags("", SVs_TEMP);
5cdc4e88
NC		 4668 while (1) {
4669 sv_catpv(target, *array);
4670 if (!*++array)
4671 break;
4672 sv_catpvs(target, " ");
4673 }
7c58897d
NC		 4674 } else {
4675 target = sv_mortalcopy(&PL_sv_no);
5cdc4e88
NC		 4676 }
4677 return target;
4678}
4679
a0d0e21e
LW		 4680/* Get system info. */
4681
a0d0e21e
LW		 4682PP(pp_ghostent)
4683{
693762b4 4684#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
97aff369 4685 dVAR; dSP;
533c011a 4686 I32 which = PL_op->op_type;
a0d0e21e
LW		 4687 register char **elem;
4688 register SV *sv;
dc45a647 4689#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4690 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4691 struct hostent *gethostbyname(Netdb_name_t);
4692 struct hostent *gethostent(void);
a0d0e21e 4693#endif
07822e36 4694 struct hostent *hent = NULL;
a0d0e21e
LW		 4695 unsigned long len;
4696
4697 EXTEND(SP, 10);
edd309b7 4698 if (which == OP_GHBYNAME) {
dc45a647 4699#ifdef HAS_GETHOSTBYNAME
0bcc34c2 4700 const char* const name = POPpbytex;
edd309b7 4701 hent = PerlSock_gethostbyname(name);
dc45a647 4702#else
cea2e8a9 4703 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4704#endif
edd309b7 4705 }
a0d0e21e 4706 else if (which == OP_GHBYADDR) {
dc45a647 4707#ifdef HAS_GETHOSTBYADDR
0bcc34c2
AL		 4708 const int addrtype = POPi;
4709 SV * const addrsv = POPs;
a0d0e21e 4710 STRLEN addrlen;
48fc4736 4711 const char *addr = (char *)SvPVbyte(addrsv, addrlen);
a0d0e21e 4712
48fc4736 4713 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4714#else
cea2e8a9 4715 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4716#endif
a0d0e21e
LW		 4717 }
4718 else
4719#ifdef HAS_GETHOSTENT
6ad3d225 4720 hent = PerlSock_gethostent();
a0d0e21e 4721#else
cea2e8a9 4722 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4723#endif
4724
4725#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4726 if (!hent) {
4727#ifdef USE_REENTRANT_API
4728# ifdef USE_GETHOSTENT_ERRNO
4729 h_errno = PL_reentrant_buffer->_gethostent_errno;
4730# endif
4731#endif
37038d91 4732 STATUS_UNIX_SET(h_errno);
10bc17b6 4733 }
a0d0e21e
LW		 4734#endif
4735
4736 if (GIMME != G_ARRAY) {
4737 PUSHs(sv = sv_newmortal());
4738 if (hent) {
4739 if (which == OP_GHBYNAME) {
fd0af264 4740 if (hent->h_addr)
4741 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4742 }
4743 else
4744 sv_setpv(sv, (char*)hent->h_name);
4745 }
4746 RETURN;
4747 }
4748
4749 if (hent) {
6e449a3a 4750 mPUSHs(newSVpv((char*)hent->h_name, 0));
931e0695 4751 PUSHs(space_join_names_mortal(hent->h_aliases));
6e449a3a 4752 mPUSHi(hent->h_addrtype);
a0d0e21e 4753 len = hent->h_length;
6e449a3a 4754 mPUSHi(len);
a0d0e21e
LW		 4755#ifdef h_addr
4756 for (elem = hent->h_addr_list; elem && *elem; elem++) {
6e449a3a 4757 mXPUSHp(*elem, len);
a0d0e21e
LW		 4758 }
4759#else
fd0af264 4760 if (hent->h_addr)
22f1178f 4761 mPUSHp(hent->h_addr, len);
7c58897d
NC		 4762 else
4763 PUSHs(sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4764#endif /* h_addr */
4765 }
4766 RETURN;
4767#else
7844cc62 4768 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4769#endif
4770}
4771
a0d0e21e
LW		 4772PP(pp_gnetent)
4773{
693762b4 4774#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
97aff369 4775 dVAR; dSP;
533c011a 4776 I32 which = PL_op->op_type;
a0d0e21e 4777 register SV *sv;
dc45a647 4778#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4779 struct netent *getnetbyaddr(Netdb_net_t, int);
4780 struct netent *getnetbyname(Netdb_name_t);
4781 struct netent *getnetent(void);
8ac85365 4782#endif
a0d0e21e
LW		 4783 struct netent *nent;
4784
edd309b7 4785 if (which == OP_GNBYNAME){
dc45a647 4786#ifdef HAS_GETNETBYNAME
0bcc34c2 4787 const char * const name = POPpbytex;
edd309b7 4788 nent = PerlSock_getnetbyname(name);
dc45a647 4789#else
cea2e8a9 4790 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4791#endif
edd309b7 4792 }
a0d0e21e 4793 else if (which == OP_GNBYADDR) {
dc45a647 4794#ifdef HAS_GETNETBYADDR
0bcc34c2
AL		 4795 const int addrtype = POPi;
4796 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4797 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4798#else
cea2e8a9 4799 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4800#endif
a0d0e21e
LW		 4801 }
4802 else
dc45a647 4803#ifdef HAS_GETNETENT
76e3520e 4804 nent = PerlSock_getnetent();
dc45a647 4805#else
cea2e8a9 4806 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4807#endif
a0d0e21e 4808
10bc17b6
JH		 4809#ifdef HOST_NOT_FOUND
4810 if (!nent) {
4811#ifdef USE_REENTRANT_API
4812# ifdef USE_GETNETENT_ERRNO
4813 h_errno = PL_reentrant_buffer->_getnetent_errno;
4814# endif
4815#endif
37038d91 4816 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4817 }
4818#endif
4819
a0d0e21e
LW		 4820 EXTEND(SP, 4);
4821 if (GIMME != G_ARRAY) {
4822 PUSHs(sv = sv_newmortal());
4823 if (nent) {
4824 if (which == OP_GNBYNAME)
1e422769 4825 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4826 else
4827 sv_setpv(sv, nent->n_name);
4828 }
4829 RETURN;
4830 }
4831
4832 if (nent) {
6e449a3a 4833 mPUSHs(newSVpv(nent->n_name, 0));
931e0695 4834 PUSHs(space_join_names_mortal(nent->n_aliases));
6e449a3a
MHM		 4835 mPUSHi(nent->n_addrtype);
4836 mPUSHi(nent->n_net);
a0d0e21e
LW		 4837 }
4838
4839 RETURN;
4840#else
7844cc62 4841 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4842#endif
4843}
4844
a0d0e21e
LW		 4845PP(pp_gprotoent)
4846{
693762b4 4847#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
97aff369 4848 dVAR; dSP;
533c011a 4849 I32 which = PL_op->op_type;
301e8125 4850 register SV *sv;
dc45a647 4851#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4852 struct protoent *getprotobyname(Netdb_name_t);
4853 struct protoent *getprotobynumber(int);
4854 struct protoent *getprotoent(void);
8ac85365 4855#endif
a0d0e21e
LW		 4856 struct protoent *pent;
4857
edd309b7 4858 if (which == OP_GPBYNAME) {
e5c9fcd0 4859#ifdef HAS_GETPROTOBYNAME
0bcc34c2 4860 const char* const name = POPpbytex;
edd309b7 4861 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4862#else
cea2e8a9 4863 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4864#endif
edd309b7
JH		 4865 }
4866 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4867#ifdef HAS_GETPROTOBYNUMBER
0bcc34c2 4868 const int number = POPi;
edd309b7 4869 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4870#else
edd309b7 4871 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4872#endif
edd309b7 4873 }
a0d0e21e 4874 else
e5c9fcd0 4875#ifdef HAS_GETPROTOENT
6ad3d225 4876 pent = PerlSock_getprotoent();
e5c9fcd0 4877#else
cea2e8a9 4878 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4879#endif
a0d0e21e
LW		 4880
4881 EXTEND(SP, 3);
4882 if (GIMME != G_ARRAY) {
4883 PUSHs(sv = sv_newmortal());
4884 if (pent) {
4885 if (which == OP_GPBYNAME)
1e422769 4886 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4887 else
4888 sv_setpv(sv, pent->p_name);
4889 }
4890 RETURN;
4891 }
4892
4893 if (pent) {
6e449a3a 4894 mPUSHs(newSVpv(pent->p_name, 0));
931e0695 4895 PUSHs(space_join_names_mortal(pent->p_aliases));
6e449a3a 4896 mPUSHi(pent->p_proto);
a0d0e21e
LW		 4897 }
4898
4899 RETURN;
4900#else
7844cc62 4901 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4902#endif
4903}
4904
a0d0e21e
LW		 4905PP(pp_gservent)
4906{
693762b4 4907#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
97aff369 4908 dVAR; dSP;
533c011a 4909 I32 which = PL_op->op_type;
a0d0e21e 4910 register SV *sv;
dc45a647 4911#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4912 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4913 struct servent *getservbyport(int, Netdb_name_t);
4914 struct servent *getservent(void);
8ac85365 4915#endif
a0d0e21e
LW		 4916 struct servent *sent;
4917
4918 if (which == OP_GSBYNAME) {
dc45a647 4919#ifdef HAS_GETSERVBYNAME
0bcc34c2
AL		 4920 const char * const proto = POPpbytex;
4921 const char * const name = POPpbytex;
bd61b366 4922 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
dc45a647 4923#else
cea2e8a9 4924 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4925#endif
a0d0e21e
LW		 4926 }
4927 else if (which == OP_GSBYPORT) {
dc45a647 4928#ifdef HAS_GETSERVBYPORT
0bcc34c2 4929 const char * const proto = POPpbytex;
eb160463 4930 unsigned short port = (unsigned short)POPu;
36477c24 4931#ifdef HAS_HTONS
6ad3d225 4932 port = PerlSock_htons(port);
36477c24 4933#endif
bd61b366 4934 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
dc45a647 4935#else
cea2e8a9 4936 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4937#endif
a0d0e21e
LW		 4938 }
4939 else
e5c9fcd0 4940#ifdef HAS_GETSERVENT
6ad3d225 4941 sent = PerlSock_getservent();
e5c9fcd0 4942#else
cea2e8a9 4943 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4944#endif
a0d0e21e
LW		 4945
4946 EXTEND(SP, 4);
4947 if (GIMME != G_ARRAY) {
4948 PUSHs(sv = sv_newmortal());
4949 if (sent) {
4950 if (which == OP_GSBYNAME) {
4951#ifdef HAS_NTOHS
6ad3d225 4952 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4953#else
1e422769 4954 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4955#endif
4956 }
4957 else
4958 sv_setpv(sv, sent->s_name);
4959 }
4960 RETURN;
4961 }
4962
4963 if (sent) {
6e449a3a 4964 mPUSHs(newSVpv(sent->s_name, 0));
931e0695 4965 PUSHs(space_join_names_mortal(sent->s_aliases));
a0d0e21e 4966#ifdef HAS_NTOHS
6e449a3a 4967 mPUSHi(PerlSock_ntohs(sent->s_port));
a0d0e21e 4968#else
6e449a3a 4969 mPUSHi(sent->s_port);
a0d0e21e 4970#endif
6e449a3a 4971 mPUSHs(newSVpv(sent->s_proto, 0));
a0d0e21e
LW		 4972 }
4973
4974 RETURN;
4975#else
7844cc62 4976 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 4977#endif
4978}
4979
4980PP(pp_shostent)
4981{
97aff369 4982 dVAR; dSP;
396166e1
NC		 4983 const int stayopen = TOPi;
4984 switch(PL_op->op_type) {
4985 case OP_SHOSTENT:
4986#ifdef HAS_SETHOSTENT
4987 PerlSock_sethostent(stayopen);
a0d0e21e 4988#else
396166e1 4989 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 4990#endif
396166e1 4991 break;
693762b4 4992#ifdef HAS_SETNETENT
396166e1
NC		 4993 case OP_SNETENT:
4994 PerlSock_setnetent(stayopen);
a0d0e21e 4995#else
396166e1 4996 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 4997#endif
396166e1
NC		 4998 break;
4999 case OP_SPROTOENT:
693762b4 5000#ifdef HAS_SETPROTOENT
396166e1 5001 PerlSock_setprotoent(stayopen);
a0d0e21e 5002#else
396166e1 5003 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5004#endif
396166e1
NC		 5005 break;
5006 case OP_SSERVENT:
693762b4 5007#ifdef HAS_SETSERVENT
396166e1 5008 PerlSock_setservent(stayopen);
a0d0e21e 5009#else
396166e1 5010 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5011#endif
396166e1
NC		 5012 break;
5013 }
5014 RETSETYES;
a0d0e21e
LW		 5015}
5016
5017PP(pp_ehostent)
5018{
97aff369 5019 dVAR; dSP;
d8ef1fcd
NC		 5020 switch(PL_op->op_type) {
5021 case OP_EHOSTENT:
5022#ifdef HAS_ENDHOSTENT
5023 PerlSock_endhostent();
a0d0e21e 5024#else
d8ef1fcd 5025 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5026#endif
d8ef1fcd
NC		 5027 break;
5028 case OP_ENETENT:
693762b4 5029#ifdef HAS_ENDNETENT
d8ef1fcd 5030 PerlSock_endnetent();
a0d0e21e 5031#else
d8ef1fcd 5032 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5033#endif
d8ef1fcd
NC		 5034 break;
5035 case OP_EPROTOENT:
693762b4 5036#ifdef HAS_ENDPROTOENT
d8ef1fcd 5037 PerlSock_endprotoent();
a0d0e21e 5038#else
d8ef1fcd 5039 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5040#endif
d8ef1fcd
NC		 5041 break;
5042 case OP_ESERVENT:
693762b4 5043#ifdef HAS_ENDSERVENT
d8ef1fcd 5044 PerlSock_endservent();
a0d0e21e 5045#else
d8ef1fcd 5046 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 5047#endif
d8ef1fcd 5048 break;
720d5dbf
NC		 5049 case OP_SGRENT:
5050#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5051 setgrent();
5052#else
5053 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5054#endif
5055 break;
5056 case OP_EGRENT:
5057#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5058 endgrent();
5059#else
5060 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5061#endif
5062 break;
5063 case OP_SPWENT:
5064#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5065 setpwent();
5066#else
5067 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5068#endif
5069 break;
5070 case OP_EPWENT:
5071#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5072 endpwent();
5073#else
5074 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5075#endif
5076 break;
d8ef1fcd
NC		 5077 }
5078 EXTEND(SP,1);
5079 RETPUSHYES;
a0d0e21e
LW		 5080}
5081
a0d0e21e
LW		 5082PP(pp_gpwent)
5083{
0994c4d0 5084#ifdef HAS_PASSWD
97aff369 5085 dVAR; dSP;
533c011a 5086 I32 which = PL_op->op_type;
a0d0e21e 5087 register SV *sv;
e3aefe8d 5088 struct passwd *pwent = NULL;
301e8125 5089 /*
bcf53261
JH		 5090 * We currently support only the SysV getsp* shadow password interface.
5091 * The interface is declared in <shadow.h> and often one needs to link
5092 * with -lsecurity or some such.
5093 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5094 * (and SCO?)
5095 *
5096 * AIX getpwnam() is clever enough to return the encrypted password
5097 * only if the caller (euid?) is root.
5098 *
e549f1c5 5099 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5100 * seem to contain more than one interface for accessing the shadow
5101 * password databases, possibly for compatibility reasons.
3813c136 5102 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5103 * are much more complicated, but also very similar to each other.
5104 *
5105 * <sys/types.h>
5106 * <sys/security.h>
5107 * <prot.h>
5108 * struct pr_passwd *getprpw*();
5109 * The password is in
3813c136
JH		 5110 * char getprpw*(...).ufld.fd_encrypt[]
5111 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5112 *
5113 * <sys/types.h>
5114 * <sys/security.h>
5115 * <prot.h>
5116 * struct es_passwd *getespw*();
5117 * The password is in
5118 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5119 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5120 *
e1920a95 5121 * <userpw.h> (AIX)
e549f1c5
JH		 5122 * struct userpw *getuserpw();
5123 * The password is in
5124 * char *(getuserpw(...)).spw_upw_passwd
5125 * (but the de facto standard getpwnam() should work okay)
5126 *
3813c136 5127 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5128 *
5129 * In HP-UX for getprpw*() the manual page claims that one should include
5130 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5131 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5132 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5133 *
5134 * Note that <sys/security.h> is already probed for, but currently
5135 * it is only included in special cases.
301e8125 5136 *
bcf53261
JH		 5137 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5138 * be preferred interface, even though also the getprpw*() interface
5139 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5140 * One also needs to call set_auth_parameters() in main() before
5141 * doing anything else, whether one is using getespw*() or getprpw*().
5142 *
5143 * Note that accessing the shadow databases can be magnitudes
5144 * slower than accessing the standard databases.
bcf53261
JH		 5145 *
5146 * --jhi
5147 */
a0d0e21e 5148
9e5f0c48
JH		 5149# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5150 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5151 * the pw_comment is left uninitialized. */
5152 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5153# endif
5154
e3aefe8d
JH		 5155 switch (which) {
5156 case OP_GPWNAM:
edd309b7 5157 {
0bcc34c2 5158 const char* const name = POPpbytex;
edd309b7
JH		 5159 pwent = getpwnam(name);
5160 }
5161 break;
e3aefe8d 5162 case OP_GPWUID:
edd309b7
JH		 5163 {
5164 Uid_t uid = POPi;
5165 pwent = getpwuid(uid);
5166 }
e3aefe8d
JH		 5167 break;
5168 case OP_GPWENT:
1883634f 5169# ifdef HAS_GETPWENT
e3aefe8d 5170 pwent = getpwent();
faea9016
IRC		 5171#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5172 if (pwent) pwent = getpwnam(pwent->pw_name);
5173#endif
1883634f 5174# else
a45d1c96 5175 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5176# endif
e3aefe8d
JH		 5177 break;
5178 }
8c0bfa08 5179
a0d0e21e
LW		 5180 EXTEND(SP, 10);
5181 if (GIMME != G_ARRAY) {
5182 PUSHs(sv = sv_newmortal());
5183 if (pwent) {
5184 if (which == OP_GPWNAM)
1883634f 5185# if Uid_t_sign <= 0
1e422769 5186 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5187# else
23dcd6c8 5188 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5189# endif
a0d0e21e
LW		 5190 else
5191 sv_setpv(sv, pwent->pw_name);
5192 }
5193 RETURN;
5194 }
5195
5196 if (pwent) {
6e449a3a 5197 mPUSHs(newSVpv(pwent->pw_name, 0));
6ee623d5 5198
6e449a3a
MHM		 5199 sv = newSViv(0);
5200 mPUSHs(sv);
3813c136
JH		 5201 /* If we have getspnam(), we try to dig up the shadow
5202 * password. If we are underprivileged, the shadow
5203 * interface will set the errno to EACCES or similar,
5204 * and return a null pointer. If this happens, we will
5205 * use the dummy password (usually "*" or "x") from the
5206 * standard password database.
5207 *
5208 * In theory we could skip the shadow call completely
5209 * if euid != 0 but in practice we cannot know which
5210 * security measures are guarding the shadow databases
5211 * on a random platform.
5212 *
5213 * Resist the urge to use additional shadow interfaces.
5214 * Divert the urge to writing an extension instead.
5215 *
5216 * --jhi */
e549f1c5
JH		 5217 /* Some AIX setups falsely(?) detect some getspnam(), which
5218 * has a different API than the Solaris/IRIX one. */
5219# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136 5220 {
4ee39169 5221 dSAVE_ERRNO;
0bcc34c2
AL		 5222 const struct spwd * const spwent = getspnam(pwent->pw_name);
5223 /* Save and restore errno so that
3813c136 5224 * underprivileged attempts seem
486ec47a 5225 * to have never made the unsuccessful
3813c136 5226 * attempt to retrieve the shadow password. */
4ee39169 5227 RESTORE_ERRNO;
3813c136
JH		 5228 if (spwent && spwent->sp_pwdp)
5229 sv_setpv(sv, spwent->sp_pwdp);
5230 }
f1066039 5231# endif
e020c87d 5232# ifdef PWPASSWD
3813c136
JH		 5233 if (!SvPOK(sv)) /* Use the standard password, then. */
5234 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5235# endif
3813c136 5236
1883634f 5237# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5238 /* passwd is tainted because user himself can diddle with it.
5239 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5240 SvTAINTED_on(sv);
1883634f 5241# endif
6ee623d5 5242
1883634f 5243# if Uid_t_sign <= 0
6e449a3a 5244 mPUSHi(pwent->pw_uid);
1883634f 5245# else
6e449a3a 5246 mPUSHu(pwent->pw_uid);
1883634f 5247# endif
6ee623d5 5248
1883634f 5249# if Uid_t_sign <= 0
6e449a3a 5250 mPUSHi(pwent->pw_gid);
1883634f 5251# else
6e449a3a 5252 mPUSHu(pwent->pw_gid);
1883634f 5253# endif
3813c136
JH		 5254 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5255 * because of the poor interface of the Perl getpw*(),
5256 * not because there's some standard/convention saying so.
5257 * A better interface would have been to return a hash,
5258 * but we are accursed by our history, alas. --jhi. */
1883634f 5259# ifdef PWCHANGE
6e449a3a 5260 mPUSHi(pwent->pw_change);
6ee623d5 5261# else
1883634f 5262# ifdef PWQUOTA
6e449a3a 5263 mPUSHi(pwent->pw_quota);
1883634f 5264# else
a1757be1 5265# ifdef PWAGE
6e449a3a 5266 mPUSHs(newSVpv(pwent->pw_age, 0));
7c58897d
NC		 5267# else
5268 /* I think that you can never get this compiled, but just in case. */
5269 PUSHs(sv_mortalcopy(&PL_sv_no));
a1757be1 5270# endif
6ee623d5
GS		 5271# endif
5272# endif
6ee623d5 5273
3813c136
JH		 5274 /* pw_class and pw_comment are mutually exclusive--.
5275 * see the above note for pw_change, pw_quota, and pw_age. */
1883634f 5276# ifdef PWCLASS
6e449a3a 5277 mPUSHs(newSVpv(pwent->pw_class, 0));
1883634f
JH		 5278# else
5279# ifdef PWCOMMENT
6e449a3a 5280 mPUSHs(newSVpv(pwent->pw_comment, 0));
7c58897d
NC		 5281# else
5282 /* I think that you can never get this compiled, but just in case. */
5283 PUSHs(sv_mortalcopy(&PL_sv_no));
1883634f 5284# endif
6ee623d5 5285# endif
6ee623d5 5286
1883634f 5287# ifdef PWGECOS
7c58897d
NC		 5288 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5289# else
c4c533cb 5290 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f
JH		 5291# endif
5292# ifndef INCOMPLETE_TAINTS
d2719217 5293 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5294 SvTAINTED_on(sv);
1883634f 5295# endif
6ee623d5 5296
6e449a3a 5297 mPUSHs(newSVpv(pwent->pw_dir, 0));
6ee623d5 5298
7c58897d 5299 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
1883634f 5300# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5301 /* pw_shell is tainted because user himself can diddle with it. */
5302 SvTAINTED_on(sv);
1883634f 5303# endif
6ee623d5 5304
1883634f 5305# ifdef PWEXPIRE
6e449a3a 5306 mPUSHi(pwent->pw_expire);
1883634f 5307# endif
a0d0e21e
LW		 5308 }
5309 RETURN;
5310#else
af51a00e 5311 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5312#endif
5313}
5314
a0d0e21e
LW		 5315PP(pp_ggrent)
5316{
0994c4d0 5317#ifdef HAS_GROUP
97aff369 5318 dVAR; dSP;
6136c704
AL		 5319 const I32 which = PL_op->op_type;
5320 const struct group *grent;
a0d0e21e 5321
edd309b7 5322 if (which == OP_GGRNAM) {
0bcc34c2 5323 const char* const name = POPpbytex;
6136c704 5324 grent = (const struct group *)getgrnam(name);
edd309b7
JH		 5325 }
5326 else if (which == OP_GGRGID) {
0bcc34c2 5327 const Gid_t gid = POPi;
6136c704 5328 grent = (const struct group *)getgrgid(gid);
edd309b7 5329 }
a0d0e21e 5330 else
0994c4d0 5331#ifdef HAS_GETGRENT
a0d0e21e 5332 grent = (struct group *)getgrent();
0994c4d0
JH		 5333#else
5334 DIE(aTHX_ PL_no_func, "getgrent");
5335#endif
a0d0e21e
LW		 5336
5337 EXTEND(SP, 4);
5338 if (GIMME != G_ARRAY) {
6136c704
AL		 5339 SV * const sv = sv_newmortal();
5340
5341 PUSHs(sv);
a0d0e21e
LW		 5342 if (grent) {
5343 if (which == OP_GGRNAM)
f325df1b 5344#if Gid_t_sign <= 0
1e422769 5345 sv_setiv(sv, (IV)grent->gr_gid);
f325df1b
DS		 5346#else
5347 sv_setuv(sv, (UV)grent->gr_gid);
5348#endif
a0d0e21e
LW		 5349 else
5350 sv_setpv(sv, grent->gr_name);
5351 }
5352 RETURN;
5353 }
5354
5355 if (grent) {
6e449a3a 5356 mPUSHs(newSVpv(grent->gr_name, 0));
28e8609d 5357
28e8609d 5358#ifdef GRPASSWD
6e449a3a 5359 mPUSHs(newSVpv(grent->gr_passwd, 0));
7c58897d
NC		 5360#else
5361 PUSHs(sv_mortalcopy(&PL_sv_no));
28e8609d
JH		 5362#endif
5363
f325df1b 5364#if Gid_t_sign <= 0
6e449a3a 5365 mPUSHi(grent->gr_gid);
f325df1b
DS		 5366#else
5367 mPUSHu(grent->gr_gid);
5368#endif
28e8609d 5369
5b56e7c5 5370#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3d7e8424
JH		 5371 /* In UNICOS/mk (_CRAYMPP) the multithreading
5372 * versions (getgrnam_r, getgrgid_r)
5373 * seem to return an illegal pointer
5374 * as the group members list, gr_mem.
5375 * getgrent() doesn't even have a _r version
5376 * but the gr_mem is poisonous anyway.
5377 * So yes, you cannot get the list of group
5378 * members if building multithreaded in UNICOS/mk. */
931e0695 5379 PUSHs(space_join_names_mortal(grent->gr_mem));
3d7e8424 5380#endif
a0d0e21e
LW		 5381 }
5382
5383 RETURN;
5384#else
af51a00e 5385 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5386#endif
5387}
5388
a0d0e21e
LW		 5389PP(pp_getlogin)
5390{
a0d0e21e 5391#ifdef HAS_GETLOGIN
97aff369 5392 dVAR; dSP; dTARGET;
a0d0e21e
LW		 5393 char *tmps;
5394 EXTEND(SP, 1);
76e3520e 5395 if (!(tmps = PerlProc_getlogin()))
a0d0e21e 5396 RETPUSHUNDEF;
bee8aa44
NC		 5397 sv_setpv_mg(TARG, tmps);
5398 PUSHs(TARG);
a0d0e21e
LW		 5399 RETURN;
5400#else
cea2e8a9 5401 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5402#endif
5403}
5404
5405/* Miscellaneous. */
5406
5407PP(pp_syscall)
5408{
d2719217 5409#ifdef HAS_SYSCALL
97aff369 5410 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5411 register I32 items = SP - MARK;
5412 unsigned long a[20];
5413 register I32 i = 0;
5414 I32 retval = -1;
5415
3280af22 5416 if (PL_tainting) {
a0d0e21e 5417 while (++MARK <= SP) {
bbce6d69 5418 if (SvTAINTED(*MARK)) {
5419 TAINT;
5420 break;
5421 }
a0d0e21e
LW		 5422 }
5423 MARK = ORIGMARK;
5424 TAINT_PROPER("syscall");
5425 }
5426
5427 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5428 * or where sizeof(long) != sizeof(char*). But such machines will
5429 * not likely have syscall implemented either, so who cares?
5430 */
5431 while (++MARK <= SP) {
5432 if (SvNIOK(*MARK) || !i)
5433 a[i++] = SvIV(*MARK);
3280af22 5434 else if (*MARK == &PL_sv_undef)
748a9306 5435 a[i++] = 0;
301e8125 5436 else
8b6b16e7 5437 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5438 if (i > 15)
5439 break;
5440 }
5441 switch (items) {
5442 default:
cea2e8a9 5443 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5444 case 0:
cea2e8a9 5445 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5446 case 1:
5447 retval = syscall(a[0]);
5448 break;
5449 case 2:
5450 retval = syscall(a[0],a[1]);
5451 break;
5452 case 3:
5453 retval = syscall(a[0],a[1],a[2]);
5454 break;
5455 case 4:
5456 retval = syscall(a[0],a[1],a[2],a[3]);
5457 break;
5458 case 5:
5459 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5460 break;
5461 case 6:
5462 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5463 break;
5464 case 7:
5465 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5466 break;
5467 case 8:
5468 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5469 break;
5470#ifdef atarist
5471 case 9:
5472 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5473 break;
5474 case 10:
5475 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5476 break;
5477 case 11:
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]);
5480 break;
5481 case 12:
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]);
5484 break;
5485 case 13:
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]);
5488 break;
5489 case 14:
5490 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5491 a[10],a[11],a[12],a[13]);
5492 break;
5493#endif /* atarist */
5494 }
5495 SP = ORIGMARK;
5496 PUSHi(retval);
5497 RETURN;
5498#else
cea2e8a9 5499 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5500#endif
5501}
5502
ff68c719 5503#ifdef FCNTL_EMULATE_FLOCK
301e8125 5504
ff68c719 5505/* XXX Emulate flock() with fcntl().
5506 What's really needed is a good file locking module.
5507*/
5508
cea2e8a9
GS		 5509static int
5510fcntl_emulate_flock(int fd, int operation)
ff68c719 5511{
fd9e8b45 5512 int res;
ff68c719 5513 struct flock flock;
301e8125 5514
ff68c719 5515 switch (operation & ~LOCK_NB) {
5516 case LOCK_SH:
5517 flock.l_type = F_RDLCK;
5518 break;
5519 case LOCK_EX:
5520 flock.l_type = F_WRLCK;
5521 break;
5522 case LOCK_UN:
5523 flock.l_type = F_UNLCK;
5524 break;
5525 default:
5526 errno = EINVAL;
5527 return -1;
5528 }
5529 flock.l_whence = SEEK_SET;
d9b3e12d 5530 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5531
fd9e8b45
JD		 5532 res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5533 if (res == -1 && ((errno == EAGAIN) || (errno == EACCES)))
5534 errno = EWOULDBLOCK;
5535 return res;
ff68c719 5536}
5537
5538#endif /* FCNTL_EMULATE_FLOCK */
5539
5540#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5541
5542/* XXX Emulate flock() with lockf(). This is just to increase
5543 portability of scripts. The calls are not completely
5544 interchangeable. What's really needed is a good file
5545 locking module.
5546*/
5547
76c32331 5548/* The lockf() constants might have been defined in <unistd.h>.
5549 Unfortunately, <unistd.h> causes troubles on some mixed
5550 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5551
5552 Further, the lockf() constants aren't POSIX, so they might not be
5553 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5554 just stick in the SVID values and be done with it. Sigh.
5555*/
5556
5557# ifndef F_ULOCK
5558# define F_ULOCK 0 /* Unlock a previously locked region */
5559# endif
5560# ifndef F_LOCK
5561# define F_LOCK 1 /* Lock a region for exclusive use */
5562# endif
5563# ifndef F_TLOCK
5564# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5565# endif
5566# ifndef F_TEST
5567# define F_TEST 3 /* Test a region for other processes locks */
5568# endif
5569
cea2e8a9
GS		 5570static int
5571lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5572{
5573 int i;
84902520 5574 Off_t pos;
4ee39169 5575 dSAVE_ERRNO;
84902520
TB		 5576
5577 /* flock locks entire file so for lockf we need to do the same */
6ad3d225 5578 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5579 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5580 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5581 pos = -1; /* seek failed, so don't seek back afterwards */
4ee39169 5582 RESTORE_ERRNO;
84902520 5583
16d20bd9
AD		 5584 switch (operation) {
5585
5586 /* LOCK_SH - get a shared lock */
5587 case LOCK_SH:
5588 /* LOCK_EX - get an exclusive lock */
5589 case LOCK_EX:
5590 i = lockf (fd, F_LOCK, 0);
5591 break;
5592
5593 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5594 case LOCK_SH|LOCK_NB:
5595 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5596 case LOCK_EX|LOCK_NB:
5597 i = lockf (fd, F_TLOCK, 0);
5598 if (i == -1)
5599 if ((errno == EAGAIN) || (errno == EACCES))
5600 errno = EWOULDBLOCK;
5601 break;
5602
ff68c719 5603 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5604 case LOCK_UN:
ff68c719 5605 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5606 i = lockf (fd, F_ULOCK, 0);
5607 break;
5608
5609 /* Default - can't decipher operation */
5610 default:
5611 i = -1;
5612 errno = EINVAL;
5613 break;
5614 }
84902520
TB		 5615
5616 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5617 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5618
16d20bd9
AD		 5619 return (i);
5620}
ff68c719 5621
5622#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5623
5624/*
5625 * Local variables:
5626 * c-indentation-style: bsd
5627 * c-basic-offset: 4
5628 * indent-tabs-mode: t
5629 * End:
5630 *
37442d52
RGS		 5631 * ex: set ts=8 sts=4 sw=4 noet:
5632 */
Unnamed repository; edit this file 'description' to name the repository.