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Move the call to Perl_cv_clone() into S_doform(), from its two callers.
[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
PP
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__)
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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
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LW
111#endif
112
113#ifdef I_UTIME
3730b96e 114# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1
PP
115# include <sys/utime.h>
116# else
117# include <utime.h>
118# endif
a0d0e21e 119#endif
a0d0e21e 120
cbdc8872 121#ifdef HAS_CHSIZE
cd52b7b2
PP
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
PP
132#endif
133
ff68c719
PP
134#ifdef HAS_FLOCK
135# define FLOCK flock
136#else /* no flock() */
137
36477c24
PP
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
PP
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
PP
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
PP
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;
f5284f61
IZ
361 tryAMAGICunTARGET(iter, -1);
362
71686f12
GS
363 /* Note that we only ever get here if File::Glob fails to load
364 * without at the same time croaking, for some reason, or if
365 * perl was built with PERL_EXTERNAL_GLOB */
366
d343c3ef 367 ENTER_with_name("glob");
a0d0e21e 368
c90c0ff4 369#ifndef VMS
3280af22 370 if (PL_tainting) {
7bac28a0
PP
371 /*
372 * The external globbing program may use things we can't control,
373 * so for security reasons we must assume the worst.
374 */
375 TAINT;
22c35a8c 376 taint_proper(PL_no_security, "glob");
7bac28a0 377 }
c90c0ff4 378#endif /* !VMS */
7bac28a0 379
3280af22 380 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
159b6efe 381 PL_last_in_gv = MUTABLE_GV(*PL_stack_sp--);
a0d0e21e 382
3280af22 383 SAVESPTR(PL_rs); /* This is not permanent, either. */
84bafc02 384 PL_rs = newSVpvs_flags("\000", SVs_TEMP);
c07a80fd
PP
385#ifndef DOSISH
386#ifndef CSH
6b88bc9c 387 *SvPVX(PL_rs) = '\n';
a0d0e21e 388#endif /* !CSH */
55497cff 389#endif /* !DOSISH */
c07a80fd 390
a0d0e21e 391 result = do_readline();
d343c3ef 392 LEAVE_with_name("glob");
a0d0e21e
LW
393 return result;
394}
395
a0d0e21e
LW
396PP(pp_rcatline)
397{
97aff369 398 dVAR;
146174a9 399 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW
400 return do_readline();
401}
402
403PP(pp_warn)
404{
97aff369 405 dVAR; dSP; dMARK;
c5df3096
Z
406 SV *exsv;
407 const char *pv;
06bf62c7 408 STRLEN len;
b59aed67 409 if (SP - MARK > 1) {
a0d0e21e 410 dTARGET;
3280af22 411 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 412 exsv = TARG;
a0d0e21e
LW
413 SP = MARK + 1;
414 }
b59aed67 415 else if (SP == MARK) {
c5df3096 416 exsv = &PL_sv_no;
b59aed67 417 EXTEND(SP, 1);
83f957ec 418 SP = MARK + 1;
b59aed67 419 }
a0d0e21e 420 else {
c5df3096 421 exsv = TOPs;
a0d0e21e 422 }
06bf62c7 423
c5df3096
Z
424 if (SvROK(exsv) || (pv = SvPV_const(exsv, len), len)) {
425 /* well-formed exception supplied */
426 }
427 else if (SvROK(ERRSV)) {
428 exsv = ERRSV;
429 }
430 else if (SvPOK(ERRSV) && SvCUR(ERRSV)) {
431 exsv = sv_mortalcopy(ERRSV);
432 sv_catpvs(exsv, "\t...caught");
433 }
434 else {
435 exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
436 }
437 warn_sv(exsv);
a0d0e21e
LW
438 RETSETYES;
439}
440
441PP(pp_die)
442{
97aff369 443 dVAR; dSP; dMARK;
c5df3096
Z
444 SV *exsv;
445 const char *pv;
06bf62c7 446 STRLEN len;
96e176bf
CL
447#ifdef VMS
448 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
449#endif
a0d0e21e
LW
450 if (SP - MARK != 1) {
451 dTARGET;
3280af22 452 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 453 exsv = TARG;
a0d0e21e
LW
454 SP = MARK + 1;
455 }
456 else {
c5df3096 457 exsv = TOPs;
a0d0e21e 458 }
c5df3096
Z
459
460 if (SvROK(exsv) || (pv = SvPV_const(exsv, len), len)) {
461 /* well-formed exception supplied */
462 }
463 else if (SvROK(ERRSV)) {
464 exsv = ERRSV;
465 if (sv_isobject(exsv)) {
466 HV * const stash = SvSTASH(SvRV(exsv));
467 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
468 if (gv) {
469 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
470 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
471 EXTEND(SP, 3);
472 PUSHMARK(SP);
473 PUSHs(exsv);
474 PUSHs(file);
475 PUSHs(line);
476 PUTBACK;
477 call_sv(MUTABLE_SV(GvCV(gv)),
478 G_SCALAR|G_EVAL|G_KEEPERR);
479 exsv = sv_mortalcopy(*PL_stack_sp--);
05423cc9 480 }
4e6ea2c3 481 }
a0d0e21e 482 }
c5df3096
Z
483 else if (SvPOK(ERRSV) && SvCUR(ERRSV)) {
484 exsv = sv_mortalcopy(ERRSV);
485 sv_catpvs(exsv, "\t...propagated");
486 }
487 else {
488 exsv = newSVpvs_flags("Died", SVs_TEMP);
489 }
9fed9930 490 return die_sv(exsv);
a0d0e21e
LW
491}
492
493/* I/O. */
494
495PP(pp_open)
496{
27da23d5 497 dVAR; dSP;
a567e93b
NIS
498 dMARK; dORIGMARK;
499 dTARGET;
a0d0e21e 500 SV *sv;
5b468f54 501 IO *io;
5c144d81 502 const char *tmps;
a0d0e21e 503 STRLEN len;
a567e93b 504 bool ok;
a0d0e21e 505
159b6efe 506 GV * const gv = MUTABLE_GV(*++MARK);
c4420975 507
5f05dabc 508 if (!isGV(gv))
cea2e8a9 509 DIE(aTHX_ PL_no_usym, "filehandle");
abc718f2 510
a79db61d
AL
511 if ((io = GvIOp(gv))) {
512 MAGIC *mg;
36477c24 513 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 514
a2a5de95 515 if (IoDIRP(io))
d1d15184
NC
516 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
517 "Opening dirhandle %s also as a file",
518 GvENAME(gv));
abc718f2 519
ad64d0ec 520 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
c4420975
AL
521 if (mg) {
522 /* Method's args are same as ours ... */
523 /* ... except handle is replaced by the object */
ad64d0ec 524 *MARK-- = SvTIED_obj(MUTABLE_SV(io), mg);
c4420975
AL
525 PUSHMARK(MARK);
526 PUTBACK;
d343c3ef 527 ENTER_with_name("call_OPEN");
c4420975 528 call_method("OPEN", G_SCALAR);
d343c3ef 529 LEAVE_with_name("call_OPEN");
c4420975
AL
530 SPAGAIN;
531 RETURN;
532 }
4592e6ca
NIS
533 }
534
a567e93b
NIS
535 if (MARK < SP) {
536 sv = *++MARK;
537 }
538 else {
35a08ec7 539 sv = GvSVn(gv);
a567e93b
NIS
540 }
541
5c144d81 542 tmps = SvPV_const(sv, len);
4608196e 543 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
a567e93b
NIS
544 SP = ORIGMARK;
545 if (ok)
3280af22
NIS
546 PUSHi( (I32)PL_forkprocess );
547 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW
548 PUSHi(0);
549 else
550 RETPUSHUNDEF;
551 RETURN;
552}
553
f4adce6b 554/* These are private to this function, which is private to this file.
74f0b550
NC
555 Use 0x04 rather than the next available bit, to help the compiler if the
556 architecture can generate more efficient instructions. */
557#define MORTALIZE_NOT_NEEDED 0x04
f4adce6b 558#define TIED_HANDLE_ARGC_SHIFT 3
74f0b550 559
ebc1fde6
NC
560static OP *
561S_tied_handle_method(pTHX_ const char *const methname, SV **sp,
f4adce6b 562 IO *const io, MAGIC *const mg, const U32 flags, ...)
ebc1fde6 563{
f4adce6b
NC
564 U32 argc = flags >> TIED_HANDLE_ARGC_SHIFT;
565
ebc1fde6
NC
566 PERL_ARGS_ASSERT_TIED_HANDLE_METHOD;
567
f4adce6b 568 /* Ensure that our flag bits do not overlap. */
74f0b550 569 assert((MORTALIZE_NOT_NEEDED & G_WANT) == 0);
f4adce6b 570 assert((G_WANT >> TIED_HANDLE_ARGC_SHIFT) == 0);
74f0b550 571
ebc1fde6
NC
572 PUSHMARK(sp);
573 PUSHs(SvTIED_obj(MUTABLE_SV(io), mg));
bc0c81ca 574 if (argc) {
74f0b550 575 const U32 mortalize_not_needed = flags & MORTALIZE_NOT_NEEDED;
bc0c81ca 576 va_list args;
f4adce6b 577 va_start(args, flags);
bc0c81ca
NC
578 do {
579 SV *const arg = va_arg(args, SV *);
74f0b550
NC
580 if(mortalize_not_needed)
581 PUSHs(arg);
582 else
583 mPUSHs(arg);
bc0c81ca
NC
584 } while (--argc);
585 va_end(args);
586 }
587
ebc1fde6
NC
588 PUTBACK;
589 ENTER_with_name("call_tied_handle_method");
74f0b550 590 call_method(methname, flags & G_WANT);
ebc1fde6
NC
591 LEAVE_with_name("call_tied_handle_method");
592 return NORMAL;
593}
594
bc0c81ca 595#define tied_handle_method(a,b,c,d) \
f4adce6b 596 S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR)
bc0c81ca 597#define tied_handle_method1(a,b,c,d,e) \
f4adce6b 598 S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR | (1 << TIED_HANDLE_ARGC_SHIFT),e)
bc0c81ca 599#define tied_handle_method2(a,b,c,d,e,f) \
f4adce6b 600 S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR | (2 << TIED_HANDLE_ARGC_SHIFT), e,f)
bc0c81ca 601
a0d0e21e
LW
602PP(pp_close)
603{
27da23d5 604 dVAR; dSP;
159b6efe 605 GV * const gv = (MAXARG == 0) ? PL_defoutgv : MUTABLE_GV(POPs);
1d603a67 606
2addaaf3
NC
607 if (MAXARG == 0)
608 EXTEND(SP, 1);
609
a79db61d
AL
610 if (gv) {
611 IO * const io = GvIO(gv);
612 if (io) {
ad64d0ec 613 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 614 if (mg) {
ebc1fde6 615 return tied_handle_method("CLOSE", SP, io, mg);
a79db61d
AL
616 }
617 }
1d603a67 618 }
54310121 619 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW
620 RETURN;
621}
622
623PP(pp_pipe_op)
624{
a0d0e21e 625#ifdef HAS_PIPE
97aff369 626 dVAR;
9cad6237 627 dSP;
a0d0e21e
LW
628 register IO *rstio;
629 register IO *wstio;
630 int fd[2];
631
159b6efe
NC
632 GV * const wgv = MUTABLE_GV(POPs);
633 GV * const rgv = MUTABLE_GV(POPs);
a0d0e21e
LW
634
635 if (!rgv || !wgv)
636 goto badexit;
637
6e592b3a 638 if (!isGV_with_GP(rgv) || !isGV_with_GP(wgv))
cea2e8a9 639 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW
640 rstio = GvIOn(rgv);
641 wstio = GvIOn(wgv);
642
643 if (IoIFP(rstio))
644 do_close(rgv, FALSE);
645 if (IoIFP(wstio))
646 do_close(wgv, FALSE);
647
6ad3d225 648 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW
649 goto badexit;
650
460c8493
IZ
651 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
652 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 653 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 654 IoIFP(wstio) = IoOFP(wstio);
50952442
JH
655 IoTYPE(rstio) = IoTYPE_RDONLY;
656 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW
657
658 if (!IoIFP(rstio) || !IoOFP(wstio)) {
a79db61d
AL
659 if (IoIFP(rstio))
660 PerlIO_close(IoIFP(rstio));
661 else
662 PerlLIO_close(fd[0]);
663 if (IoOFP(wstio))
664 PerlIO_close(IoOFP(wstio));
665 else
666 PerlLIO_close(fd[1]);
a0d0e21e
LW
667 goto badexit;
668 }
4771b018
GS
669#if defined(HAS_FCNTL) && defined(F_SETFD)
670 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
671 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
672#endif
a0d0e21e
LW
673 RETPUSHYES;
674
675badexit:
676 RETPUSHUNDEF;
677#else
cea2e8a9 678 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW
679#endif
680}
681
682PP(pp_fileno)
683{
27da23d5 684 dVAR; dSP; dTARGET;
a0d0e21e
LW
685 GV *gv;
686 IO *io;
760ac839 687 PerlIO *fp;
4592e6ca
NIS
688 MAGIC *mg;
689
a0d0e21e
LW
690 if (MAXARG < 1)
691 RETPUSHUNDEF;
159b6efe 692 gv = MUTABLE_GV(POPs);
4592e6ca 693
5b468f54 694 if (gv && (io = GvIO(gv))
ad64d0ec 695 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
5b468f54 696 {
ebc1fde6 697 return tied_handle_method("FILENO", SP, io, mg);
4592e6ca
NIS
698 }
699
c289d2f7
JH
700 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
701 /* Can't do this because people seem to do things like
702 defined(fileno($foo)) to check whether $foo is a valid fh.
703 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
704 report_evil_fh(gv, io, PL_op->op_type);
705 */
a0d0e21e 706 RETPUSHUNDEF;
c289d2f7
JH
707 }
708
760ac839 709 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW
710 RETURN;
711}
712
713PP(pp_umask)
714{
97aff369 715 dVAR;
27da23d5 716 dSP;
d7e492a4 717#ifdef HAS_UMASK
27da23d5 718 dTARGET;
761237fe 719 Mode_t anum;
a0d0e21e 720
a0d0e21e 721 if (MAXARG < 1) {
b0b546b3
GA
722 anum = PerlLIO_umask(022);
723 /* setting it to 022 between the two calls to umask avoids
724 * to have a window where the umask is set to 0 -- meaning
725 * that another thread could create world-writeable files. */
726 if (anum != 022)
727 (void)PerlLIO_umask(anum);
a0d0e21e
LW
728 }
729 else
6ad3d225 730 anum = PerlLIO_umask(POPi);
a0d0e21e
LW
731 TAINT_PROPER("umask");
732 XPUSHi(anum);
733#else
a0288114 734 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS
735 * Otherwise it's harmless and more useful to just return undef
736 * since 'group' and 'other' concepts probably don't exist here. */
737 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 738 DIE(aTHX_ "umask not implemented");
6b88bc9c 739 XPUSHs(&PL_sv_undef);
a0d0e21e
LW
740#endif
741 RETURN;
742}
743
744PP(pp_binmode)
745{
27da23d5 746 dVAR; dSP;
a0d0e21e
LW
747 GV *gv;
748 IO *io;
760ac839 749 PerlIO *fp;
a0714e2c 750 SV *discp = NULL;
a0d0e21e
LW
751
752 if (MAXARG < 1)
753 RETPUSHUNDEF;
60382766 754 if (MAXARG > 1) {
16fe6d59 755 discp = POPs;
60382766 756 }
a0d0e21e 757
159b6efe 758 gv = MUTABLE_GV(POPs);
4592e6ca 759
a79db61d 760 if (gv && (io = GvIO(gv))) {
ad64d0ec 761 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 762 if (mg) {
bc0c81ca
NC
763 /* This takes advantage of the implementation of the varargs
764 function, which I don't think that the optimiser will be able to
765 figure out. Although, as it's a static function, in theory it
766 could. */
74f0b550 767 return S_tied_handle_method(aTHX_ "BINMODE", SP, io, mg,
f4adce6b
NC
768 G_SCALAR|MORTALIZE_NOT_NEEDED
769 | (discp
770 ? (1 << TIED_HANDLE_ARGC_SHIFT) : 0),
771 discp);
a79db61d 772 }
4592e6ca 773 }
a0d0e21e 774
50f846a7 775 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH
776 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
777 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 778 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC
779 RETPUSHUNDEF;
780 }
a0d0e21e 781
40d98b49 782 PUTBACK;
f0a78170 783 {
a79b25b7
VP
784 STRLEN len = 0;
785 const char *d = NULL;
786 int mode;
787 if (discp)
788 d = SvPV_const(discp, len);
789 mode = mode_from_discipline(d, len);
f0a78170
NC
790 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
791 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
792 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
793 SPAGAIN;
794 RETPUSHUNDEF;
795 }
796 }
797 SPAGAIN;
798 RETPUSHYES;
799 }
800 else {
801 SPAGAIN;
802 RETPUSHUNDEF;
38af81ff 803 }
40d98b49 804 }
a0d0e21e
LW
805}
806
807PP(pp_tie)
808{
27da23d5 809 dVAR; dSP; dMARK;
a0d0e21e 810 HV* stash;
07822e36 811 GV *gv = NULL;
a0d0e21e 812 SV *sv;
1df70142 813 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 814 const char *methname;
14befaf4 815 int how = PERL_MAGIC_tied;
e336de0d 816 U32 items;
c4420975 817 SV *varsv = *++MARK;
a0d0e21e 818
6b05c17a
NIS
819 switch(SvTYPE(varsv)) {
820 case SVt_PVHV:
821 methname = "TIEHASH";
85fbaab2 822 HvEITER_set(MUTABLE_HV(varsv), 0);
6b05c17a
NIS
823 break;
824 case SVt_PVAV:
825 methname = "TIEARRAY";
826 break;
827 case SVt_PVGV:
6e592b3a 828 if (isGV_with_GP(varsv)) {
6e592b3a
BM
829 methname = "TIEHANDLE";
830 how = PERL_MAGIC_tiedscalar;
831 /* For tied filehandles, we apply tiedscalar magic to the IO
832 slot of the GP rather than the GV itself. AMS 20010812 */
833 if (!GvIOp(varsv))
834 GvIOp(varsv) = newIO();
ad64d0ec 835 varsv = MUTABLE_SV(GvIOp(varsv));
6e592b3a
BM
836 break;
837 }
838 /* FALL THROUGH */
6b05c17a
NIS
839 default:
840 methname = "TIESCALAR";
14befaf4 841 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS
842 break;
843 }
e336de0d 844 items = SP - MARK++;
a91d1d42 845 if (sv_isobject(*MARK)) { /* Calls GET magic. */
d343c3ef 846 ENTER_with_name("call_TIE");
e788e7d3 847 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 848 PUSHMARK(SP);
eb160463 849 EXTEND(SP,(I32)items);
e336de0d
GS
850 while (items--)
851 PUSHs(*MARK++);
852 PUTBACK;
864dbfa3 853 call_method(methname, G_SCALAR);
301e8125 854 }
6b05c17a 855 else {
086d2913
NC
856 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
857 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
858 * wrong error message, and worse case, supreme action at a distance.
859 * (Sorry obfuscation writers. You're not going to be given this one.)
6b05c17a 860 */
a91d1d42
VP
861 STRLEN len;
862 const char *name = SvPV_nomg_const(*MARK, len);
863 stash = gv_stashpvn(name, len, 0);
6b05c17a 864 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d 865 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
a91d1d42 866 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
6b05c17a 867 }
d343c3ef 868 ENTER_with_name("call_TIE");
e788e7d3 869 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 870 PUSHMARK(SP);
eb160463 871 EXTEND(SP,(I32)items);
e336de0d
GS
872 while (items--)
873 PUSHs(*MARK++);
874 PUTBACK;
ad64d0ec 875 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
6b05c17a 876 }
a0d0e21e
LW
877 SPAGAIN;
878
879 sv = TOPs;
d3acc0f7 880 POPSTACK;
a0d0e21e 881 if (sv_isobject(sv)) {
33c27489 882 sv_unmagic(varsv, how);
ae21d580 883 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 884 if (varsv == SvRV(sv) &&
d87ebaca
YST
885 (SvTYPE(varsv) == SVt_PVAV ||
886 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH
887 Perl_croak(aTHX_
888 "Self-ties of arrays and hashes are not supported");
a0714e2c 889 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
a0d0e21e 890 }
d343c3ef 891 LEAVE_with_name("call_TIE");
3280af22 892 SP = PL_stack_base + markoff;
a0d0e21e
LW
893 PUSHs(sv);
894 RETURN;
895}
896
897PP(pp_untie)
898{
27da23d5 899 dVAR; dSP;
5b468f54 900 MAGIC *mg;
33c27489 901 SV *sv = POPs;
1df70142 902 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 903 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 904
ad64d0ec 905 if (isGV_with_GP(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54
AMS
906 RETPUSHYES;
907
65eba18f 908 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 909 SV * const obj = SvRV(SvTIED_obj(sv, mg));
fa2b88e0 910 if (obj) {
c4420975 911 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
0bd48802 912 CV *cv;
c4420975 913 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0 914 PUSHMARK(SP);
c33ef3ac 915 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
6e449a3a 916 mXPUSHi(SvREFCNT(obj) - 1);
fa2b88e0 917 PUTBACK;
d343c3ef 918 ENTER_with_name("call_UNTIE");
ad64d0ec 919 call_sv(MUTABLE_SV(cv), G_VOID);
d343c3ef 920 LEAVE_with_name("call_UNTIE");
fa2b88e0
JS
921 SPAGAIN;
922 }
a2a5de95
NC
923 else if (mg && SvREFCNT(obj) > 1) {
924 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
925 "untie attempted while %"UVuf" inner references still exist",
926 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 927 }
cbdc8872
PP
928 }
929 }
38193a09 930 sv_unmagic(sv, how) ;
55497cff 931 RETPUSHYES;
a0d0e21e
LW
932}
933
c07a80fd
PP
934PP(pp_tied)
935{
97aff369 936 dVAR;
39644a26 937 dSP;
1b6737cc 938 const MAGIC *mg;
33c27489 939 SV *sv = POPs;
1df70142 940 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 941 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54 942
ad64d0ec 943 if (isGV_with_GP(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54 944 RETPUSHUNDEF;
c07a80fd 945
155aba94 946 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS
947 SV *osv = SvTIED_obj(sv, mg);
948 if (osv == mg->mg_obj)
949 osv = sv_mortalcopy(osv);
950 PUSHs(osv);
951 RETURN;
c07a80fd 952 }
c07a80fd
PP
953 RETPUSHUNDEF;
954}
955
a0d0e21e
LW
956PP(pp_dbmopen)
957{
27da23d5 958 dVAR; dSP;
a0d0e21e
LW
959 dPOPPOPssrl;
960 HV* stash;
07822e36 961 GV *gv = NULL;
a0d0e21e 962
85fbaab2 963 HV * const hv = MUTABLE_HV(POPs);
84bafc02 964 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
da51bb9b 965 stash = gv_stashsv(sv, 0);
8ebc5c01 966 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 967 PUTBACK;
864dbfa3 968 require_pv("AnyDBM_File.pm");
a0d0e21e 969 SPAGAIN;
eff494dd 970 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 971 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW
972 }
973
57d3b86d 974 ENTER;
924508f0 975 PUSHMARK(SP);
6b05c17a 976
924508f0 977 EXTEND(SP, 5);
a0d0e21e
LW
978 PUSHs(sv);
979 PUSHs(left);
980 if (SvIV(right))
6e449a3a 981 mPUSHu(O_RDWR|O_CREAT);
a0d0e21e 982 else
6e449a3a 983 mPUSHu(O_RDWR);
a0d0e21e 984 PUSHs(right);
57d3b86d 985 PUTBACK;
ad64d0ec 986 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
987 SPAGAIN;
988
989 if (!sv_isobject(TOPs)) {
924508f0
GS
990 SP--;
991 PUSHMARK(SP);
a0d0e21e
LW
992 PUSHs(sv);
993 PUSHs(left);
6e449a3a 994 mPUSHu(O_RDONLY);
a0d0e21e 995 PUSHs(right);
a0d0e21e 996 PUTBACK;
ad64d0ec 997 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
998 SPAGAIN;
999 }
1000
6b05c17a 1001 if (sv_isobject(TOPs)) {
ad64d0ec
NC
1002 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1003 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
6b05c17a 1004 }
a0d0e21e
LW
1005 LEAVE;
1006 RETURN;
1007}
1008
a0d0e21e
LW
1009PP(pp_sselect)
1010{
a0d0e21e 1011#ifdef HAS_SELECT
97aff369 1012 dVAR; dSP; dTARGET;
a0d0e21e
LW
1013 register I32 i;
1014 register I32 j;
1015 register char *s;
1016 register SV *sv;
65202027 1017 NV value;
a0d0e21e
LW
1018 I32 maxlen = 0;
1019 I32 nfound;
1020 struct timeval timebuf;
1021 struct timeval *tbuf = &timebuf;
1022 I32 growsize;
1023 char *fd_sets[4];
1024#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1025 I32 masksize;
1026 I32 offset;
1027 I32 k;
1028
1029# if BYTEORDER & 0xf0000
1030# define ORDERBYTE (0x88888888 - BYTEORDER)
1031# else
1032# define ORDERBYTE (0x4444 - BYTEORDER)
1033# endif
1034
1035#endif
1036
1037 SP -= 4;
1038 for (i = 1; i <= 3; i++) {
c4420975 1039 SV * const sv = SP[i];
15547071
GA
1040 if (!SvOK(sv))
1041 continue;
1042 if (SvREADONLY(sv)) {
729c079f
NC
1043 if (SvIsCOW(sv))
1044 sv_force_normal_flags(sv, 0);
15547071 1045 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
6ad8f254 1046 Perl_croak_no_modify(aTHX);
729c079f 1047 }
4ef2275c 1048 if (!SvPOK(sv)) {
a2a5de95 1049 Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
4ef2275c
GA
1050 SvPV_force_nolen(sv); /* force string conversion */
1051 }
729c079f 1052 j = SvCUR(sv);
a0d0e21e
LW
1053 if (maxlen < j)
1054 maxlen = j;
1055 }
1056
5ff3f7a4 1057/* little endians can use vecs directly */
e366b469 1058#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1059# ifdef NFDBITS
a0d0e21e 1060
5ff3f7a4
GS
1061# ifndef NBBY
1062# define NBBY 8
1063# endif
a0d0e21e
LW
1064
1065 masksize = NFDBITS / NBBY;
5ff3f7a4 1066# else
a0d0e21e 1067 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1068# endif
a0d0e21e
LW
1069 Zero(&fd_sets[0], 4, char*);
1070#endif
1071
ad517f75
MHM
1072# if SELECT_MIN_BITS == 1
1073 growsize = sizeof(fd_set);
1074# else
1075# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1076# undef SELECT_MIN_BITS
1077# define SELECT_MIN_BITS __FD_SETSIZE
1078# endif
e366b469
PG
1079 /* If SELECT_MIN_BITS is greater than one we most probably will want
1080 * to align the sizes with SELECT_MIN_BITS/8 because for example
1081 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1082 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1083 * on (sets/tests/clears bits) is 32 bits. */
1084 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG
1085# endif
1086
a0d0e21e
LW
1087 sv = SP[4];
1088 if (SvOK(sv)) {
1089 value = SvNV(sv);
1090 if (value < 0.0)
1091 value = 0.0;
1092 timebuf.tv_sec = (long)value;
65202027 1093 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW
1094 timebuf.tv_usec = (long)(value * 1000000.0);
1095 }
1096 else
4608196e 1097 tbuf = NULL;
a0d0e21e
LW
1098
1099 for (i = 1; i <= 3; i++) {
1100 sv = SP[i];
15547071 1101 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW
1102 fd_sets[i] = 0;
1103 continue;
1104 }
4ef2275c 1105 assert(SvPOK(sv));
a0d0e21e
LW
1106 j = SvLEN(sv);
1107 if (j < growsize) {
1108 Sv_Grow(sv, growsize);
a0d0e21e 1109 }
c07a80fd
PP
1110 j = SvCUR(sv);
1111 s = SvPVX(sv) + j;
1112 while (++j <= growsize) {
1113 *s++ = '\0';
1114 }
1115
a0d0e21e
LW
1116#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1117 s = SvPVX(sv);
a02a5408 1118 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW
1119 for (offset = 0; offset < growsize; offset += masksize) {
1120 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1121 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1122 }
1123#else
1124 fd_sets[i] = SvPVX(sv);
1125#endif
1126 }
1127
dc4c69d9
JH
1128#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1129 /* Can't make just the (void*) conditional because that would be
1130 * cpp #if within cpp macro, and not all compilers like that. */
1131 nfound = PerlSock_select(
1132 maxlen * 8,
1133 (Select_fd_set_t) fd_sets[1],
1134 (Select_fd_set_t) fd_sets[2],
1135 (Select_fd_set_t) fd_sets[3],
1136 (void*) tbuf); /* Workaround for compiler bug. */
1137#else
6ad3d225 1138 nfound = PerlSock_select(
a0d0e21e
LW
1139 maxlen * 8,
1140 (Select_fd_set_t) fd_sets[1],
1141 (Select_fd_set_t) fd_sets[2],
1142 (Select_fd_set_t) fd_sets[3],
1143 tbuf);
dc4c69d9 1144#endif
a0d0e21e
LW
1145 for (i = 1; i <= 3; i++) {
1146 if (fd_sets[i]) {
1147 sv = SP[i];
1148#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1149 s = SvPVX(sv);
1150 for (offset = 0; offset < growsize; offset += masksize) {
1151 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1152 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1153 }
1154 Safefree(fd_sets[i]);
1155#endif
1156 SvSETMAGIC(sv);
1157 }
1158 }
1159
4189264e 1160 PUSHi(nfound);
a0d0e21e 1161 if (GIMME == G_ARRAY && tbuf) {
65202027
DS
1162 value = (NV)(timebuf.tv_sec) +
1163 (NV)(timebuf.tv_usec) / 1000000.0;
6e449a3a 1164 mPUSHn(value);
a0d0e21e
LW
1165 }
1166 RETURN;
1167#else
cea2e8a9 1168 DIE(aTHX_ "select not implemented");
a0d0e21e
LW
1169#endif
1170}
1171
8226a3d7
NC
1172/*
1173=for apidoc setdefout
1174
1175Sets PL_defoutgv, the default file handle for output, to the passed in
1176typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference
1177count of the passed in typeglob is increased by one, and the reference count
1178of the typeglob that PL_defoutgv points to is decreased by one.
1179
1180=cut
1181*/
1182
4633a7c4 1183void
864dbfa3 1184Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1185{
97aff369 1186 dVAR;
b37c2d43 1187 SvREFCNT_inc_simple_void(gv);
ef8d46e8 1188 SvREFCNT_dec(PL_defoutgv);
3280af22 1189 PL_defoutgv = gv;
4633a7c4
LW
1190}
1191
a0d0e21e
LW
1192PP(pp_select)
1193{
97aff369 1194 dVAR; dSP; dTARGET;
4633a7c4 1195 HV *hv;
159b6efe 1196 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
099be4f1 1197 GV * egv = GvEGVx(PL_defoutgv);
4633a7c4 1198
4633a7c4 1199 if (!egv)
3280af22 1200 egv = PL_defoutgv;
099be4f1 1201 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
4633a7c4 1202 if (! hv)
3280af22 1203 XPUSHs(&PL_sv_undef);
4633a7c4 1204 else {
c4420975 1205 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1206 if (gvp && *gvp == egv) {
bd61b366 1207 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
f86702cc
PP
1208 XPUSHTARG;
1209 }
1210 else {
ad64d0ec 1211 mXPUSHs(newRV(MUTABLE_SV(egv)));
f86702cc 1212 }
4633a7c4
LW
1213 }
1214
1215 if (newdefout) {
ded8aa31
GS
1216 if (!GvIO(newdefout))
1217 gv_IOadd(newdefout);
4633a7c4
LW
1218 setdefout(newdefout);
1219 }
1220
a0d0e21e
LW
1221 RETURN;
1222}
1223
1224PP(pp_getc)
1225{
27da23d5 1226 dVAR; dSP; dTARGET;
90133b69 1227 IO *io = NULL;
159b6efe 1228 GV * const gv = (MAXARG==0) ? PL_stdingv : MUTABLE_GV(POPs);
2ae324a7 1229
ac3697cd
NC
1230 if (MAXARG == 0)
1231 EXTEND(SP, 1);
1232
a79db61d 1233 if (gv && (io = GvIO(gv))) {
ad64d0ec 1234 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1235 if (mg) {
0240605e 1236 const U32 gimme = GIMME_V;
f4adce6b 1237 S_tied_handle_method(aTHX_ "GETC", SP, io, mg, gimme);
0240605e
NC
1238 if (gimme == G_SCALAR) {
1239 SPAGAIN;
a79db61d 1240 SvSetMagicSV_nosteal(TARG, TOPs);
0240605e
NC
1241 }
1242 return NORMAL;
a79db61d 1243 }
2ae324a7 1244 }
90133b69 1245 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM
1246 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1247 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1248 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1249 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1250 RETPUSHUNDEF;
90133b69 1251 }
bbce6d69 1252 TAINT;
76f68e9b 1253 sv_setpvs(TARG, " ");
9bc64814 1254 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS
1255 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1256 /* Find out how many bytes the char needs */
aa07b2f6 1257 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS
1258 if (len > 1) {
1259 SvGROW(TARG,len+1);
1260 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1261 SvCUR_set(TARG,1+len);
1262 }
1263 SvUTF8_on(TARG);
1264 }
a0d0e21e
LW
1265 PUSHTARG;
1266 RETURN;
1267}
1268
76e3520e 1269STATIC OP *
cea2e8a9 1270S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1271{
27da23d5 1272 dVAR;
c09156bb 1273 register PERL_CONTEXT *cx;
f54cb97a 1274 const I32 gimme = GIMME_V;
a0d0e21e 1275
7918f24d
NC
1276 PERL_ARGS_ASSERT_DOFORM;
1277
7b190374
NC
1278 if (cv && CvCLONE(cv))
1279 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1280
a0d0e21e
LW
1281 ENTER;
1282 SAVETMPS;
1283
146174a9 1284 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
10067d9a 1285 PUSHFORMAT(cx, retop);
fd617465
DM
1286 SAVECOMPPAD();
1287 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1288
4633a7c4 1289 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW
1290 return CvSTART(cv);
1291}
1292
1293PP(pp_enterwrite)
1294{
97aff369 1295 dVAR;
39644a26 1296 dSP;
a0d0e21e
LW
1297 register GV *gv;
1298 register IO *io;
1299 GV *fgv;
07822e36
JH
1300 CV *cv = NULL;
1301 SV *tmpsv = NULL;
a0d0e21e 1302
2addaaf3 1303 if (MAXARG == 0) {
3280af22 1304 gv = PL_defoutgv;
2addaaf3
NC
1305 EXTEND(SP, 1);
1306 }
a0d0e21e 1307 else {
159b6efe 1308 gv = MUTABLE_GV(POPs);
a0d0e21e 1309 if (!gv)
3280af22 1310 gv = PL_defoutgv;
a0d0e21e 1311 }
a0d0e21e
LW
1312 io = GvIO(gv);
1313 if (!io) {
1314 RETPUSHNO;
1315 }
1316 if (IoFMT_GV(io))
1317 fgv = IoFMT_GV(io);
1318 else
1319 fgv = gv;
1320
a79db61d
AL
1321 if (!fgv)
1322 goto not_a_format_reference;
1323
a0d0e21e 1324 cv = GvFORM(fgv);
a0d0e21e 1325 if (!cv) {
f4a7049d 1326 const char *name;
10edeb5d 1327 tmpsv = sv_newmortal();
f4a7049d
NC
1328 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1329 name = SvPV_nolen_const(tmpsv);
1330 if (name && *name)
1331 DIE(aTHX_ "Undefined format \"%s\" called", name);
a79db61d
AL
1332
1333 not_a_format_reference:
cea2e8a9 1334 DIE(aTHX_ "Not a format reference");
a0d0e21e 1335 }
44a8e56a 1336 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1337 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW
1338}
1339
1340PP(pp_leavewrite)
1341{
27da23d5 1342 dVAR; dSP;
f9c764c5 1343 GV * const gv = cxstack[cxstack_ix].blk_format.gv;
1b6737cc 1344 register IO * const io = GvIOp(gv);
8b8cacda 1345 PerlIO *ofp;
760ac839 1346 PerlIO *fp;
8772537c
AL
1347 SV **newsp;
1348 I32 gimme;
c09156bb 1349 register PERL_CONTEXT *cx;
a0d0e21e 1350
8b8cacda 1351 if (!io || !(ofp = IoOFP(io)))
1352 goto forget_top;
1353
760ac839 1354 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1355 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
8b8cacda 1356
3280af22
NIS
1357 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1358 PL_formtarget != PL_toptarget)
a0d0e21e 1359 {
4633a7c4
LW
1360 GV *fgv;
1361 CV *cv;
a0d0e21e
LW
1362 if (!IoTOP_GV(io)) {
1363 GV *topgv;
a0d0e21e
LW
1364
1365 if (!IoTOP_NAME(io)) {
1b6737cc 1366 SV *topname;
a0d0e21e
LW
1367 if (!IoFMT_NAME(io))
1368 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1369 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
f776e3cd 1370 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
748a9306 1371 if ((topgv && GvFORM(topgv)) ||
fafc274c 1372 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
2e0de35c 1373 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1374 else
89529cee 1375 IoTOP_NAME(io) = savepvs("top");
a0d0e21e 1376 }
f776e3cd 1377 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
a0d0e21e 1378 if (!topgv || !GvFORM(topgv)) {
b929a54b 1379 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW
1380 goto forget_top;
1381 }
1382 IoTOP_GV(io) = topgv;
1383 }
748a9306
LW
1384 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1385 I32 lines = IoLINES_LEFT(io);
504618e9 1386 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD
1387 if (lines <= 0) /* Yow, header didn't even fit!!! */
1388 goto forget_top;
748a9306
LW
1389 while (lines-- > 0) {
1390 s = strchr(s, '\n');
1391 if (!s)
1392 break;
1393 s++;
1394 }
1395 if (s) {
f54cb97a 1396 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1397 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS
1398 do_print(PL_formtarget, ofp);
1399 SvCUR_set(PL_formtarget, save);
3280af22
NIS
1400 sv_chop(PL_formtarget, s);
1401 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW
1402 }
1403 }
a0d0e21e 1404 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1405 do_print(PL_formfeed, ofp);
a0d0e21e
LW
1406 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1407 IoPAGE(io)++;
3280af22 1408 PL_formtarget = PL_toptarget;
748a9306 1409 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW
1410 fgv = IoTOP_GV(io);
1411 if (!fgv)
cea2e8a9 1412 DIE(aTHX_ "bad top format reference");
4633a7c4 1413 cv = GvFORM(fgv);
1df70142
AL
1414 if (!cv) {
1415 SV * const sv = sv_newmortal();
b464bac0 1416 const char *name;
bd61b366 1417 gv_efullname4(sv, fgv, NULL, FALSE);
e62f0680 1418 name = SvPV_nolen_const(sv);
2dd78f96 1419 if (name && *name)
0e528f24
JH
1420 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1421 else
1422 DIE(aTHX_ "Undefined top format called");
4633a7c4 1423 }
0e528f24 1424 return doform(cv, gv, PL_op);
a0d0e21e
LW
1425 }
1426
1427 forget_top:
3280af22 1428 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW
1429 POPFORMAT(cx);
1430 LEAVE;
1431
1432 fp = IoOFP(io);
1433 if (!fp) {
599cee73 1434 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC
1435 if (IoIFP(io))
1436 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1437 else if (ckWARN(WARN_CLOSED))
bc37a18f 1438 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1439 }
3280af22 1440 PUSHs(&PL_sv_no);
a0d0e21e
LW
1441 }
1442 else {
3280af22 1443 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
a2a5de95 1444 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1445 }
d75029d0 1446 if (!do_print(PL_formtarget, fp))
3280af22 1447 PUSHs(&PL_sv_no);
a0d0e21e 1448 else {
3280af22
NIS
1449 FmLINES(PL_formtarget) = 0;
1450 SvCUR_set(PL_formtarget, 0);
1451 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1452 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1453 (void)PerlIO_flush(fp);
3280af22 1454 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1455 }
1456 }
9cbac4c7 1457 /* bad_ofp: */
3280af22 1458 PL_formtarget = PL_bodytarget;
a0d0e21e 1459 PUTBACK;
29033a8a
SH
1460 PERL_UNUSED_VAR(newsp);
1461 PERL_UNUSED_VAR(gimme);
f39bc417 1462 return cx->blk_sub.retop;
a0d0e21e
LW
1463}
1464
1465PP(pp_prtf)
1466{
27da23d5 1467 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e 1468 IO *io;
760ac839 1469 PerlIO *fp;
26db47c4 1470 SV *sv;
a0d0e21e 1471
159b6efe
NC
1472 GV * const gv
1473 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
46fc3d4c 1474
a79db61d 1475 if (gv && (io = GvIO(gv))) {
ad64d0ec 1476 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL
1477 if (mg) {
1478 if (MARK == ORIGMARK) {
1479 MEXTEND(SP, 1);
1480 ++MARK;
1481 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1482 ++SP;
1483 }
1484 PUSHMARK(MARK - 1);
ad64d0ec 1485 *MARK = SvTIED_obj(MUTABLE_SV(io), mg);
a79db61d
AL
1486 PUTBACK;
1487 ENTER;
1488 call_method("PRINTF", G_SCALAR);
1489 LEAVE;
1490 SPAGAIN;
1491 MARK = ORIGMARK + 1;
1492 *MARK = *SP;
1493 SP = MARK;
1494 RETURN;
1495 }
46fc3d4c
PP
1496 }
1497
561b68a9 1498 sv = newSV(0);
a0d0e21e 1499 if (!(io = GvIO(gv))) {
2dd78f96
JH
1500 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1501 report_evil_fh(gv, io, PL_op->op_type);
93189314 1502 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW
1503 goto just_say_no;
1504 }
1505 else if (!(fp = IoOFP(io))) {
599cee73 1506 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC
1507 if (IoIFP(io))
1508 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1509 else if (ckWARN(WARN_CLOSED))
bc37a18f 1510 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1511 }
93189314 1512 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW
1513 goto just_say_no;
1514 }
1515 else {
20ee07fb
RGS
1516 if (SvTAINTED(MARK[1]))
1517 TAINT_PROPER("printf");
a0d0e21e
LW
1518 do_sprintf(sv, SP - MARK, MARK + 1);
1519 if (!do_print(sv, fp))
1520 goto just_say_no;
1521
1522 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1523 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW
1524 goto just_say_no;
1525 }
1526 SvREFCNT_dec(sv);
1527 SP = ORIGMARK;
3280af22 1528 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1529 RETURN;
1530
1531 just_say_no:
1532 SvREFCNT_dec(sv);
1533 SP = ORIGMARK;
3280af22 1534 PUSHs(&PL_sv_undef);
a0d0e21e
LW
1535 RETURN;
1536}
1537
c07a80fd
PP
1538PP(pp_sysopen)
1539{
97aff369 1540 dVAR;
39644a26 1541 dSP;
1df70142
AL
1542 const int perm = (MAXARG > 3) ? POPi : 0666;
1543 const int mode = POPi;
1b6737cc 1544 SV * const sv = POPs;
159b6efe 1545 GV * const gv = MUTABLE_GV(POPs);
1b6737cc 1546 STRLEN len;
c07a80fd 1547
4592e6ca 1548 /* Need TIEHANDLE method ? */
1b6737cc 1549 const char * const tmps = SvPV_const(sv, len);
e62f0680 1550 /* FIXME? do_open should do const */
4608196e 1551 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
c07a80fd 1552 IoLINES(GvIOp(gv)) = 0;
3280af22 1553 PUSHs(&PL_sv_yes);
c07a80fd
PP
1554 }
1555 else {
3280af22 1556 PUSHs(&PL_sv_undef);
c07a80fd
PP
1557 }
1558 RETURN;
1559}
1560
a0d0e21e
LW
1561PP(pp_sysread)
1562{
27da23d5 1563 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1564 int offset;
a0d0e21e
LW
1565 IO *io;
1566 char *buffer;
5b54f415 1567 SSize_t length;
eb5c063a 1568 SSize_t count;
1e422769 1569 Sock_size_t bufsize;
748a9306 1570 SV *bufsv;
a0d0e21e 1571 STRLEN blen;
eb5c063a 1572 int fp_utf8;
1dd30107
NC
1573 int buffer_utf8;
1574 SV *read_target;
eb5c063a
NIS
1575 Size_t got = 0;
1576 Size_t wanted;
1d636c13 1577 bool charstart = FALSE;
87330c3c
JH
1578 STRLEN charskip = 0;
1579 STRLEN skip = 0;
a0d0e21e 1580
159b6efe 1581 GV * const gv = MUTABLE_GV(*++MARK);
5b468f54 1582 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1583 && gv && (io = GvIO(gv)) )
137443ea 1584 {
ad64d0ec 1585 const MAGIC * mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1b6737cc
AL
1586 if (mg) {
1587 SV *sv;
1588 PUSHMARK(MARK-1);
ad64d0ec 1589 *MARK = SvTIED_obj(MUTABLE_SV(io), mg);
1b6737cc
AL
1590 ENTER;
1591 call_method("READ", G_SCALAR);
1592 LEAVE;
1593 SPAGAIN;
1594 sv = POPs;
1595 SP = ORIGMARK;
1596 PUSHs(sv);
1597 RETURN;
1598 }
2ae324a7
PP
1599 }
1600
a0d0e21e
LW
1601 if (!gv)
1602 goto say_undef;
748a9306 1603 bufsv = *++MARK;
ff68c719 1604 if (! SvOK(bufsv))
76f68e9b 1605 sv_setpvs(bufsv, "");
a0d0e21e 1606 length = SvIVx(*++MARK);
748a9306 1607 SETERRNO(0,0);
a0d0e21e
LW
1608 if (MARK < SP)
1609 offset = SvIVx(*++MARK);
1610 else
1611 offset = 0;
1612 io = GvIO(gv);
b5fe5ca2
SR
1613 if (!io || !IoIFP(io)) {
1614 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1615 report_evil_fh(gv, io, PL_op->op_type);
1616 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1617 goto say_undef;
b5fe5ca2 1618 }
0064a8a9 1619 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1620 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1621 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1622 SvUTF8_on(bufsv);
9b9d7ce8 1623 buffer_utf8 = 0;
7d59b7e4
NIS
1624 }
1625 else {
1626 buffer = SvPV_force(bufsv, blen);
1dd30107 1627 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS
1628 }
1629 if (length < 0)
1630 DIE(aTHX_ "Negative length");
eb5c063a 1631 wanted = length;
7d59b7e4 1632
d0965105
JH
1633 charstart = TRUE;
1634 charskip = 0;
87330c3c 1635 skip = 0;
d0965105 1636
a0d0e21e 1637#ifdef HAS_SOCKET
533c011a 1638 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1639 char namebuf[MAXPATHLEN];
17a8c7ba 1640#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH
1641 bufsize = sizeof (struct sockaddr_in);
1642#else
46fc3d4c 1643 bufsize = sizeof namebuf;
490ab354 1644#endif
abf95952
IZ
1645#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1646 if (bufsize >= 256)
1647 bufsize = 255;
1648#endif
eb160463 1649 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1650 /* 'offset' means 'flags' here */
eb5c063a 1651 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
10edeb5d 1652 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1653 if (count < 0)
a0d0e21e 1654 RETPUSHUNDEF;
4107cc59
OF
1655#ifdef EPOC
1656 /* Bogus return without padding */
1657 bufsize = sizeof (struct sockaddr_in);
1658#endif
eb5c063a 1659 SvCUR_set(bufsv, count);
748a9306
LW
1660 *SvEND(bufsv) = '\0';
1661 (void)SvPOK_only(bufsv);
eb5c063a
NIS
1662 if (fp_utf8)
1663 SvUTF8_on(bufsv);
748a9306 1664 SvSETMAGIC(bufsv);
aac0dd9a 1665 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1666 if (!(IoFLAGS(io) & IOf_UNTAINT))
1667 SvTAINTED_on(bufsv);
a0d0e21e 1668 SP = ORIGMARK;
46fc3d4c 1669 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW
1670 PUSHs(TARG);
1671 RETURN;
1672 }
1673#else
911d147d 1674 if (PL_op->op_type == OP_RECV)
cea2e8a9 1675 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1676#endif
eb5c063a
NIS
1677 if (DO_UTF8(bufsv)) {
1678 /* offset adjust in characters not bytes */
1679 blen = sv_len_utf8(bufsv);
7d59b7e4 1680 }
bbce6d69 1681 if (offset < 0) {
eb160463 1682 if (-offset > (int)blen)
cea2e8a9 1683 DIE(aTHX_ "Offset outside string");
bbce6d69
PP
1684 offset += blen;
1685 }
eb5c063a
NIS
1686 if (DO_UTF8(bufsv)) {
1687 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH
1688 if (offset >= (int)blen)
1689 offset += SvCUR(bufsv) - blen;
1690 else
1691 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS
1692 }
1693 more_bytes:
cd52b7b2 1694 bufsize = SvCUR(bufsv);
1dd30107
NC
1695 /* Allocating length + offset + 1 isn't perfect in the case of reading
1696 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1697 unduly.
1698 (should be 2 * length + offset + 1, or possibly something longer if
1699 PL_encoding is true) */
eb160463 1700 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1701 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2
PP
1702 Zero(buffer+bufsize, offset-bufsize, char);
1703 }
eb5c063a 1704 buffer = buffer + offset;
1dd30107
NC
1705 if (!buffer_utf8) {
1706 read_target = bufsv;
1707 } else {
1708 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1709 concatenate it to the current buffer. */
1710
1711 /* Truncate the existing buffer to the start of where we will be
1712 reading to: */
1713 SvCUR_set(bufsv, offset);
1714
1715 read_target = sv_newmortal();
862a34c6 1716 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1717 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1718 }
eb5c063a 1719
533c011a 1720 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1721#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1722 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS
1723 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1724 buffer, length, 0);
a7092146
GS
1725 }
1726 else
1727#endif
1728 {
eb5c063a
NIS
1729 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1730 buffer, length);
a7092146 1731 }
a0d0e21e
LW
1732 }
1733 else
1734#ifdef HAS_SOCKET__bad_code_maybe
50952442 1735 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1736 char namebuf[MAXPATHLEN];
490ab354
JH
1737#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1738 bufsize = sizeof (struct sockaddr_in);
1739#else
46fc3d4c 1740 bufsize = sizeof namebuf;
490ab354 1741#endif
eb5c063a 1742 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1743 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW
1744 }
1745 else
1746#endif
3b02c43c 1747 {
eb5c063a
NIS
1748 count = PerlIO_read(IoIFP(io), buffer, length);
1749 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1750 if (count == 0 && PerlIO_error(IoIFP(io)))
1751 count = -1;
3b02c43c 1752 }
eb5c063a 1753 if (count < 0) {
a00b5bd3 1754 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1755 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1756 goto say_undef;
af8c498a 1757 }
aa07b2f6 1758 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC
1759 *SvEND(read_target) = '\0';
1760 (void)SvPOK_only(read_target);
0064a8a9 1761 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1762 /* Look at utf8 we got back and count the characters */
1df70142 1763 const char *bend = buffer + count;
eb5c063a 1764 while (buffer < bend) {
d0965105
JH
1765 if (charstart) {
1766 skip = UTF8SKIP(buffer);
1767 charskip = 0;
1768 }
1769 if (buffer - charskip + skip > bend) {
eb5c063a
NIS
1770 /* partial character - try for rest of it */
1771 length = skip - (bend-buffer);
aa07b2f6 1772 offset = bend - SvPVX_const(bufsv);
d0965105
JH
1773 charstart = FALSE;
1774 charskip += count;
eb5c063a
NIS
1775 goto more_bytes;
1776 }
1777 else {
1778 got++;
1779 buffer += skip;
d0965105
JH
1780 charstart = TRUE;
1781 charskip = 0;
eb5c063a
NIS
1782 }
1783 }
1784 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1785 provided amount read (count) was what was requested (length)
1786 */
1787 if (got < wanted && count == length) {
d0965105 1788 length = wanted - got;
aa07b2f6 1789 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS
1790 goto more_bytes;
1791 }
1792 /* return value is character count */
1793 count = got;
1794 SvUTF8_on(bufsv);
1795 }
1dd30107
NC
1796 else if (buffer_utf8) {
1797 /* Let svcatsv upgrade the bytes we read in to utf8.
1798 The buffer is a mortal so will be freed soon. */
1799 sv_catsv_nomg(bufsv, read_target);
1800 }
748a9306 1801 SvSETMAGIC(bufsv);
aac0dd9a 1802 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1803 if (!(IoFLAGS(io) & IOf_UNTAINT))
1804 SvTAINTED_on(bufsv);
a0d0e21e 1805 SP = ORIGMARK;
eb5c063a 1806 PUSHi(count);
a0d0e21e
LW
1807 RETURN;
1808
1809 say_undef:
1810 SP = ORIGMARK;
1811 RETPUSHUNDEF;
1812}
1813
a0d0e21e
LW
1814PP(pp_send)
1815{
27da23d5 1816 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1817 IO *io;
748a9306 1818 SV *bufsv;
83003860 1819 const char *buffer;
8c99d73e 1820 SSize_t retval;
a0d0e21e 1821 STRLEN blen;
c9cb0f41 1822 STRLEN orig_blen_bytes;
64a1bc8e 1823 const int op_type = PL_op->op_type;
c9cb0f41
NC
1824 bool doing_utf8;
1825 U8 *tmpbuf = NULL;
64a1bc8e 1826
159b6efe 1827 GV *const gv = MUTABLE_GV(*++MARK);
14befaf4 1828 if (PL_op->op_type == OP_SYSWRITE
a79db61d 1829 && gv && (io = GvIO(gv))) {
ad64d0ec 1830 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL
1831 if (mg) {
1832 SV *sv;
64a1bc8e 1833
a79db61d 1834 if (MARK == SP - 1) {
9b6474b6
VP
1835 sv = *SP;
1836 mXPUSHi(sv_len(sv));
a79db61d
AL
1837 PUTBACK;
1838 }
1839
1840 PUSHMARK(ORIGMARK);
ad64d0ec 1841 *(ORIGMARK+1) = SvTIED_obj(MUTABLE_SV(io), mg);
a79db61d
AL
1842 ENTER;
1843 call_method("WRITE", G_SCALAR);
1844 LEAVE;
1845 SPAGAIN;
1846 sv = POPs;
1847 SP = ORIGMARK;
64a1bc8e 1848 PUSHs(sv);
a79db61d 1849 RETURN;
64a1bc8e 1850 }
1d603a67 1851 }
a0d0e21e
LW
1852 if (!gv)
1853 goto say_undef;
64a1bc8e 1854
748a9306 1855 bufsv = *++MARK;
64a1bc8e 1856
748a9306 1857 SETERRNO(0,0);
a0d0e21e 1858 io = GvIO(gv);
cf167416 1859 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
8c99d73e 1860 retval = -1;
cf167416
RGS
1861 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
1862 if (io && IoIFP(io))
1863 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1864 else
1865 report_evil_fh(gv, io, PL_op->op_type);
1866 }
b5fe5ca2 1867 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS
1868 goto say_undef;
1869 }
1870
c9cb0f41
NC
1871 /* Do this first to trigger any overloading. */
1872 buffer = SvPV_const(bufsv, blen);
1873 orig_blen_bytes = blen;
1874 doing_utf8 = DO_UTF8(bufsv);
1875
7d59b7e4 1876 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7 1877 if (!SvUTF8(bufsv)) {
c9cb0f41
NC
1878 /* We don't modify the original scalar. */
1879 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1880 buffer = (char *) tmpbuf;
1881 doing_utf8 = TRUE;
1882 }
a0d0e21e 1883 }
c9cb0f41
NC
1884 else if (doing_utf8) {
1885 STRLEN tmplen = blen;
a79db61d 1886 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
c9cb0f41
NC
1887 if (!doing_utf8) {
1888 tmpbuf = result;
1889 buffer = (char *) tmpbuf;
1890 blen = tmplen;
1891 }
1892 else {
1893 assert((char *)result == buffer);
1894 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1895 }
7d59b7e4
NIS
1896 }
1897
64a1bc8e 1898 if (op_type == OP_SYSWRITE) {
c9cb0f41
NC
1899 Size_t length = 0; /* This length is in characters. */
1900 STRLEN blen_chars;
7d59b7e4 1901 IV offset;
c9cb0f41
NC
1902
1903 if (doing_utf8) {
1904 if (tmpbuf) {
1905 /* The SV is bytes, and we've had to upgrade it. */
1906 blen_chars = orig_blen_bytes;
1907 } else {
1908 /* The SV really is UTF-8. */
1909 if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1910 /* Don't call sv_len_utf8 again because it will call magic
1911 or overloading a second time, and we might get back a
1912 different result. */
9a206dfd 1913 blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen);
c9cb0f41
NC
1914 } else {
1915 /* It's safe, and it may well be cached. */
1916 blen_chars = sv_len_utf8(bufsv);
1917 }
1918 }
1919 } else {
1920 blen_chars = blen;
1921 }
1922
1923 if (MARK >= SP) {
1924 length = blen_chars;
1925 } else {
1926#if Size_t_size > IVSIZE
1927 length = (Size_t)SvNVx(*++MARK);
1928#else
1929 length = (Size_t)SvIVx(*++MARK);
1930#endif
4b0c4b6f
NC
1931 if ((SSize_t)length < 0) {
1932 Safefree(tmpbuf);
c9cb0f41 1933 DIE(aTHX_ "Negative length");
4b0c4b6f 1934 }
7d59b7e4 1935 }
c9cb0f41 1936
bbce6d69 1937 if (MARK < SP) {
a0d0e21e 1938 offset = SvIVx(*++MARK);
bbce6d69 1939 if (offset < 0) {
4b0c4b6f
NC
1940 if (-offset > (IV)blen_chars) {
1941 Safefree(tmpbuf);
cea2e8a9 1942 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1943 }
c9cb0f41 1944 offset += blen_chars;
3c946528 1945 } else if (offset > (IV)blen_chars) {
4b0c4b6f 1946 Safefree(tmpbuf);
cea2e8a9 1947 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1948 }
bbce6d69 1949 } else
a0d0e21e 1950 offset = 0;
c9cb0f41
NC
1951 if (length > blen_chars - offset)
1952 length = blen_chars - offset;
1953 if (doing_utf8) {
1954 /* Here we convert length from characters to bytes. */
1955 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1956 /* Either we had to convert the SV, or the SV is magical, or
1957 the SV has overloading, in which case we can't or mustn't
1958 or mustn't call it again. */
1959
1960 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1961 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1962 } else {
1963 /* It's a real UTF-8 SV, and it's not going to change under
1964 us. Take advantage of any cache. */
1965 I32 start = offset;
1966 I32 len_I32 = length;
1967
1968 /* Convert the start and end character positions to bytes.
1969 Remember that the second argument to sv_pos_u2b is relative
1970 to the first. */
1971 sv_pos_u2b(bufsv, &start, &len_I32);
1972
1973 buffer += start;
1974 length = len_I32;
1975 }
7d59b7e4
NIS
1976 }
1977 else {
1978 buffer = buffer+offset;
1979 }
a7092146 1980#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1981 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1982 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1983 buffer, length, 0);
a7092146
GS
1984 }
1985 else
1986#endif
1987 {
94e4c244 1988 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1989 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1990 buffer, length);
a7092146 1991 }
a0d0e21e
LW
1992 }
1993#ifdef HAS_SOCKET
64a1bc8e
NC
1994 else {
1995 const int flags = SvIVx(*++MARK);
1996 if (SP > MARK) {
1997 STRLEN mlen;
1998 char * const sockbuf = SvPVx(*++MARK, mlen);
1999 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
2000 flags, (struct sockaddr *)sockbuf, mlen);
2001 }
2002 else {
2003 retval
2004 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
2005 }
a0d0e21e 2006 }
a0d0e21e
LW
2007#else
2008 else
cea2e8a9 2009 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 2010#endif
c9cb0f41 2011
8c99d73e 2012 if (retval < 0)
a0d0e21e
LW
2013 goto say_undef;
2014 SP = ORIGMARK;
c9cb0f41 2015 if (doing_utf8)
f36eea10 2016 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
4b0c4b6f 2017
a79db61d 2018 Safefree(tmpbuf);
8c99d73e
GS
2019#if Size_t_size > IVSIZE
2020 PUSHn(retval);
2021#else
2022 PUSHi(retval);
2023#endif
a0d0e21e
LW
2024 RETURN;
2025
2026 say_undef:
a79db61d 2027 Safefree(tmpbuf);
a0d0e21e
LW
2028 SP = ORIGMARK;
2029 RETPUSHUNDEF;
2030}
2031
a0d0e21e
LW
2032PP(pp_eof)
2033{
27da23d5 2034 dVAR; dSP;
a0d0e21e 2035 GV *gv;
32e65323
CS
2036 IO *io;
2037 MAGIC *mg;
bc0c81ca
NC
2038 /*
2039 * in Perl 5.12 and later, the additional parameter is a bitmask:
2040 * 0 = eof
2041 * 1 = eof(FH)
2042 * 2 = eof() <- ARGV magic
2043 *
2044 * I'll rely on the compiler's trace flow analysis to decide whether to
2045 * actually assign this out here, or punt it into the only block where it is
2046 * used. Doing it out here is DRY on the condition logic.
2047 */
2048 unsigned int which;
a0d0e21e 2049
bc0c81ca 2050 if (MAXARG) {
32e65323 2051 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
bc0c81ca
NC
2052 which = 1;
2053 }
b5f55170
NC
2054 else {
2055 EXTEND(SP, 1);
2056
bc0c81ca 2057 if (PL_op->op_flags & OPf_SPECIAL) {
b5f55170 2058 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
bc0c81ca
NC
2059 which = 2;
2060 }
2061 else {
b5f55170 2062 gv = PL_last_in_gv; /* eof */
bc0c81ca
NC
2063 which = 0;
2064 }
b5f55170 2065 }
32e65323
CS
2066
2067 if (!gv)
2068 RETPUSHNO;
2069
2070 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
74f0b550 2071 return tied_handle_method1("EOF", SP, io, mg, newSVuv(which));
146174a9 2072 }
4592e6ca 2073
32e65323
CS
2074 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2075 if (io && !IoIFP(io)) {
2076 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2077 IoLINES(io) = 0;
2078 IoFLAGS(io) &= ~IOf_START;
2079 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2080 if (GvSV(gv))
2081 sv_setpvs(GvSV(gv), "-");
2082 else
2083 GvSV(gv) = newSVpvs("-");
2084 SvSETMAGIC(GvSV(gv));
2085 }
2086 else if (!nextargv(gv))
2087 RETPUSHYES;
6136c704 2088 }
4592e6ca
NIS
2089 }
2090
32e65323 2091 PUSHs(boolSV(do_eof(gv)));
a0d0e21e
LW
2092 RETURN;
2093}
2094
2095PP(pp_tell)
2096{
27da23d5 2097 dVAR; dSP; dTARGET;
301e8125 2098 GV *gv;
5b468f54 2099 IO *io;
a0d0e21e 2100
c4420975 2101 if (MAXARG != 0)
159b6efe 2102 PL_last_in_gv = MUTABLE_GV(POPs);
ac3697cd
NC
2103 else
2104 EXTEND(SP, 1);
c4420975 2105 gv = PL_last_in_gv;
4592e6ca 2106
a79db61d 2107 if (gv && (io = GvIO(gv))) {
ad64d0ec 2108 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2109 if (mg) {
ebc1fde6 2110 return tied_handle_method("TELL", SP, io, mg);
a79db61d 2111 }
4592e6ca 2112 }
f4817f32 2113 else if (!gv) {
f03173f2
RGS
2114 if (!errno)
2115 SETERRNO(EBADF,RMS_IFI);
2116 PUSHi(-1);
2117 RETURN;
2118 }
4592e6ca 2119
146174a9
CB
2120#if LSEEKSIZE > IVSIZE
2121 PUSHn( do_tell(gv) );
2122#else
a0d0e21e 2123 PUSHi( do_tell(gv) );
146174a9 2124#endif
a0d0e21e
LW
2125 RETURN;
2126}
2127
137443ea
PP
2128PP(pp_sysseek)
2129{
27da23d5 2130 dVAR; dSP;
1df70142 2131 const int whence = POPi;
146174a9 2132#if LSEEKSIZE > IVSIZE
7452cf6a 2133 const Off_t offset = (Off_t)SvNVx(POPs);
146174a9 2134#else
7452cf6a 2135 const Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2136#endif
a0d0e21e 2137
159b6efe 2138 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
a79db61d 2139 IO *io;
4592e6ca 2140
a79db61d 2141 if (gv && (io = GvIO(gv))) {
ad64d0ec 2142 MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2143 if (mg) {
cb50131a 2144#if LSEEKSIZE > IVSIZE
74f0b550 2145 SV *const offset_sv = newSVnv((NV) offset);
cb50131a 2146#else
74f0b550 2147 SV *const offset_sv = newSViv(offset);
cb50131a 2148#endif
bc0c81ca
NC
2149
2150 return tied_handle_method2("SEEK", SP, io, mg, offset_sv,
74f0b550 2151 newSViv(whence));
a79db61d 2152 }
4592e6ca
NIS
2153 }
2154
533c011a 2155 if (PL_op->op_type == OP_SEEK)
8903cb82
PP
2156 PUSHs(boolSV(do_seek(gv, offset, whence)));
2157 else {
0bcc34c2 2158 const Off_t sought = do_sysseek(gv, offset, whence);
b448e4fe 2159 if (sought < 0)
146174a9
CB
2160 PUSHs(&PL_sv_undef);
2161 else {
7452cf6a 2162 SV* const sv = sought ?
146174a9 2163#if LSEEKSIZE > IVSIZE
b448e4fe 2164 newSVnv((NV)sought)
146174a9 2165#else
b448e4fe 2166 newSViv(sought)
146174a9
CB
2167#endif
2168 : newSVpvn(zero_but_true, ZBTLEN);
6e449a3a 2169 mPUSHs(sv);
146174a9 2170 }
8903cb82 2171 }
a0d0e21e
LW
2172 RETURN;
2173}
2174
2175PP(pp_truncate)
2176{
97aff369 2177 dVAR;
39644a26 2178 dSP;
8c99d73e
GS
2179 /* There seems to be no consensus on the length type of truncate()
2180 * and ftruncate(), both off_t and size_t have supporters. In
2181 * general one would think that when using large files, off_t is
2182 * at least as wide as size_t, so using an off_t should be okay. */
2183 /* XXX Configure probe for the length type of *truncate() needed XXX */
0bcc34c2 2184 Off_t len;
a0d0e21e 2185
25342a55 2186#if Off_t_size > IVSIZE
0bcc34c2 2187 len = (Off_t)POPn;
8c99d73e 2188#else
0bcc34c2 2189 len = (Off_t)POPi;
8c99d73e
GS
2190#endif
2191 /* Checking for length < 0 is problematic as the type might or
301e8125 2192 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2193 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2194 SETERRNO(0,0);
d05c1ba0 2195 {
d05c1ba0
JH
2196 int result = 1;
2197 GV *tmpgv;
090bf15b
SR
2198 IO *io;
2199
d05c1ba0 2200 if (PL_op->op_flags & OPf_SPECIAL) {
f776e3cd 2201 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
d05c1ba0 2202
090bf15b
SR
2203 do_ftruncate_gv:
2204 if (!GvIO(tmpgv))
2205 result = 0;
d05c1ba0 2206 else {
090bf15b
SR
2207 PerlIO *fp;
2208 io = GvIOp(tmpgv);
2209 do_ftruncate_io:
2210 TAINT_PROPER("truncate");
2211 if (!(fp = IoIFP(io))) {
2212 result = 0;
2213 }
2214 else {
2215 PerlIO_flush(fp);
cbdc8872 2216#ifdef HAS_TRUNCATE
090bf15b 2217 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2218#else
090bf15b 2219 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2220#endif
090bf15b
SR
2221 result = 0;
2222 }
d05c1ba0 2223 }
cbdc8872 2224 }
d05c1ba0 2225 else {
7452cf6a 2226 SV * const sv = POPs;
83003860 2227 const char *name;
7a5fd60d 2228
6e592b3a 2229 if (isGV_with_GP(sv)) {
159b6efe 2230 tmpgv = MUTABLE_GV(sv); /* *main::FRED for example */
090bf15b 2231 goto do_ftruncate_gv;
d05c1ba0 2232 }
6e592b3a 2233 else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 2234 tmpgv = MUTABLE_GV(SvRV(sv)); /* \*main::FRED for example */
090bf15b
SR
2235 goto do_ftruncate_gv;
2236 }
2237 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2238 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
090bf15b 2239 goto do_ftruncate_io;
d05c1ba0 2240 }
1e422769 2241
83003860 2242 name = SvPV_nolen_const(sv);
d05c1ba0 2243 TAINT_PROPER("truncate");
cbdc8872 2244#ifdef HAS_TRUNCATE
d05c1ba0
JH
2245 if (truncate(name, len) < 0)
2246 result = 0;
cbdc8872 2247#else
d05c1ba0 2248 {
7452cf6a 2249 const int tmpfd = PerlLIO_open(name, O_RDWR);
d05c1ba0 2250
7452cf6a 2251 if (tmpfd < 0)
cbdc8872 2252 result = 0;
d05c1ba0
JH
2253 else {
2254 if (my_chsize(tmpfd, len) < 0)
2255 result = 0;
2256 PerlLIO_close(tmpfd);
2257 }
cbdc8872 2258 }
a0d0e21e 2259#endif
d05c1ba0 2260 }
a0d0e21e 2261
d05c1ba0
JH
2262 if (result)
2263 RETPUSHYES;
2264 if (!errno)
93189314 2265 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH
2266 RETPUSHUNDEF;
2267 }
a0d0e21e
LW
2268}
2269
a0d0e21e
LW
2270PP(pp_ioctl)
2271{
97aff369 2272 dVAR; dSP; dTARGET;
7452cf6a 2273 SV * const argsv = POPs;
1df70142 2274 const unsigned int func = POPu;
e1ec3a88 2275 const int optype = PL_op->op_type;
159b6efe 2276 GV * const gv = MUTABLE_GV(POPs);
4608196e 2277 IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2278 char *s;
324aa91a 2279 IV retval;
a0d0e21e 2280
748a9306 2281 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH
2282 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2283 report_evil_fh(gv, io, PL_op->op_type);
93189314 2284 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW
2285 RETPUSHUNDEF;
2286 }
2287
748a9306 2288 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2289 STRLEN len;
324aa91a 2290 STRLEN need;
748a9306 2291 s = SvPV_force(argsv, len);
324aa91a
HF
2292 need = IOCPARM_LEN(func);
2293 if (len < need) {
2294 s = Sv_Grow(argsv, need + 1);
2295 SvCUR_set(argsv, need);
a0d0e21e
LW
2296 }
2297
748a9306 2298 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW
2299 }
2300 else {
748a9306 2301 retval = SvIV(argsv);
c529f79d 2302 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW
2303 }
2304
ed4b2e6b 2305 TAINT_PROPER(PL_op_desc[optype]);
a0d0e21e
LW
2306
2307 if (optype == OP_IOCTL)
2308#ifdef HAS_IOCTL
76e3520e 2309 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2310#else
cea2e8a9 2311 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW
2312#endif
2313 else
c214f4ad
B
2314#ifndef HAS_FCNTL
2315 DIE(aTHX_ "fcntl is not implemented");
2316#else
55497cff 2317#if defined(OS2) && defined(__EMX__)
760ac839 2318 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2319#else
760ac839 2320 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2321#endif
6652bd42 2322#endif
a0d0e21e 2323
6652bd42 2324#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW
2325 if (SvPOK(argsv)) {
2326 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2327 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2328 OP_NAME(PL_op));
748a9306
LW
2329 s[SvCUR(argsv)] = 0; /* put our null back */
2330 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW
2331 }
2332
2333 if (retval == -1)
2334 RETPUSHUNDEF;
2335 if (retval != 0) {
2336 PUSHi(retval);
2337 }
2338 else {
8903cb82 2339 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2340 }
4808266b 2341#endif
c214f4ad 2342 RETURN;
a0d0e21e
LW
2343}
2344
2345PP(pp_flock)
2346{
9cad6237 2347#ifdef FLOCK
97aff369 2348 dVAR; dSP; dTARGET;
a0d0e21e 2349 I32 value;
bc37a18f 2350 IO *io = NULL;
760ac839 2351 PerlIO *fp;
7452cf6a 2352 const int argtype = POPi;
159b6efe 2353 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : MUTABLE_GV(POPs);
16d20bd9 2354
bc37a18f
RG
2355 if (gv && (io = GvIO(gv)))
2356 fp = IoIFP(io);
2357 else {
4608196e 2358 fp = NULL;
bc37a18f
RG
2359 io = NULL;
2360 }
0bcc34c2 2361 /* XXX Looks to me like io is always NULL at this point */
a0d0e21e 2362 if (fp) {
68dc0745 2363 (void)PerlIO_flush(fp);
76e3520e 2364 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2365 }
cb50131a 2366 else {
bc37a18f
RG
2367 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2368 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2369 value = 0;
93189314 2370 SETERRNO(EBADF,RMS_IFI);
cb50131a 2371 }
a0d0e21e
LW
2372 PUSHi(value);
2373 RETURN;
2374#else
cea2e8a9 2375 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW
2376#endif
2377}
2378
2379/* Sockets. */
2380
2381PP(pp_socket)
2382{
a0d0e21e 2383#ifdef HAS_SOCKET
97aff369 2384 dVAR; dSP;
7452cf6a
AL
2385 const int protocol = POPi;
2386 const int type = POPi;
2387 const int domain = POPi;
159b6efe 2388 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2389 register IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e
LW
2390 int fd;
2391
c289d2f7
JH
2392 if (!gv || !io) {
2393 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2394 report_evil_fh(gv, io, PL_op->op_type);
5ee74a84 2395 if (io && IoIFP(io))
c289d2f7 2396 do_close(gv, FALSE);
93189314 2397 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW
2398 RETPUSHUNDEF;
2399 }
2400
57171420
BS
2401 if (IoIFP(io))
2402 do_close(gv, FALSE);
2403
a0d0e21e 2404 TAINT_PROPER("socket");
6ad3d225 2405 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW
2406 if (fd < 0)
2407 RETPUSHUNDEF;
460c8493
IZ
2408 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2409 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2410 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2411 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW
2412 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2413 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2414 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW
2415 RETPUSHUNDEF;
2416 }
8d2a6795
GS
2417#if defined(HAS_FCNTL) && defined(F_SETFD)
2418 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2419#endif
a0d0e21e 2420
d5ff79b3
OF
2421#ifdef EPOC
2422 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2423#endif
2424
a0d0e21e
LW
2425 RETPUSHYES;
2426#else
cea2e8a9 2427 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW
2428#endif
2429}
2430
2431PP(pp_sockpair)
2432{
c95c94b1 2433#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
97aff369 2434 dVAR; dSP;
7452cf6a
AL
2435 const int protocol = POPi;
2436 const int type = POPi;
2437 const int domain = POPi;
159b6efe
NC
2438 GV * const gv2 = MUTABLE_GV(POPs);
2439 GV * const gv1 = MUTABLE_GV(POPs);
7452cf6a
AL
2440 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2441 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
a0d0e21e
LW
2442 int fd[2];
2443
c289d2f7
JH
2444 if (!gv1 || !gv2 || !io1 || !io2) {
2445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2446 if (!gv1 || !io1)
2447 report_evil_fh(gv1, io1, PL_op->op_type);
2448 if (!gv2 || !io2)
2449 report_evil_fh(gv1, io2, PL_op->op_type);
2450 }
5ee74a84 2451 if (io1 && IoIFP(io1))
c289d2f7 2452 do_close(gv1, FALSE);
5ee74a84 2453 if (io2 && IoIFP(io2))
c289d2f7 2454 do_close(gv2, FALSE);
a0d0e21e 2455 RETPUSHUNDEF;
c289d2f7 2456 }
a0d0e21e 2457
dc0d0a5f
JH
2458 if (IoIFP(io1))
2459 do_close(gv1, FALSE);
2460 if (IoIFP(io2))
2461 do_close(gv2, FALSE);
57171420 2462
a0d0e21e 2463 TAINT_PROPER("socketpair");
6ad3d225 2464 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2465 RETPUSHUNDEF;
460c8493
IZ
2466 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2467 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2468 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ
2469 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2470 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2471 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2472 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW
2473 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2474 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2475 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW
2476 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2477 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2478 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW
2479 RETPUSHUNDEF;
2480 }
8d2a6795
GS
2481#if defined(HAS_FCNTL) && defined(F_SETFD)
2482 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2483 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2484#endif
a0d0e21e
LW
2485
2486 RETPUSHYES;
2487#else
cea2e8a9 2488 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW
2489#endif
2490}
2491
2492PP(pp_bind)
2493{
a0d0e21e 2494#ifdef HAS_SOCKET
97aff369 2495 dVAR; dSP;
7452cf6a 2496 SV * const addrsv = POPs;
349d4f2f
NC
2497 /* OK, so on what platform does bind modify addr? */
2498 const char *addr;
159b6efe 2499 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2500 register IO * const io = GvIOn(gv);
a0d0e21e
LW
2501 STRLEN len;
2502
2503 if (!io || !IoIFP(io))
2504 goto nuts;
2505
349d4f2f 2506 addr = SvPV_const(addrsv, len);
a0d0e21e 2507 TAINT_PROPER("bind");
a79db61d 2508 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW
2509 RETPUSHYES;
2510 else
2511 RETPUSHUNDEF;
2512
2513nuts:
599cee73 2514 if (ckWARN(WARN_CLOSED))
bc37a18f 2515 report_evil_fh(gv, io, PL_op->op_type);
93189314 2516 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2517 RETPUSHUNDEF;
2518#else
cea2e8a9 2519 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW
2520#endif
2521}
2522
2523PP(pp_connect)
2524{
a0d0e21e 2525#ifdef HAS_SOCKET
97aff369 2526 dVAR; dSP;
7452cf6a 2527 SV * const addrsv = POPs;
159b6efe 2528 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2529 register IO * const io = GvIOn(gv);
349d4f2f 2530 const char *addr;
a0d0e21e
LW
2531 STRLEN len;
2532
2533 if (!io || !IoIFP(io))
2534 goto nuts;
2535
349d4f2f 2536 addr = SvPV_const(addrsv, len);
a0d0e21e 2537 TAINT_PROPER("connect");
6ad3d225 2538 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW
2539 RETPUSHYES;
2540 else
2541 RETPUSHUNDEF;
2542
2543nuts:
599cee73 2544 if (ckWARN(WARN_CLOSED))
bc37a18f 2545 report_evil_fh(gv, io, PL_op->op_type);
93189314 2546 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2547 RETPUSHUNDEF;
2548#else
cea2e8a9 2549 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW
2550#endif
2551}
2552
2553PP(pp_listen)
2554{
a0d0e21e 2555#ifdef HAS_SOCKET
97aff369 2556 dVAR; dSP;
7452cf6a 2557 const int backlog = POPi;
159b6efe 2558 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2559 register IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2560
c289d2f7 2561 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW
2562 goto nuts;
2563
6ad3d225 2564 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW
2565 RETPUSHYES;
2566 else
2567 RETPUSHUNDEF;
2568
2569nuts:
599cee73 2570 if (ckWARN(WARN_CLOSED))
bc37a18f 2571 report_evil_fh(gv, io, PL_op->op_type);
93189314 2572 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2573 RETPUSHUNDEF;
2574#else
cea2e8a9 2575 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW
2576#endif
2577}
2578
2579PP(pp_accept)
2580{
a0d0e21e 2581#ifdef HAS_SOCKET
97aff369 2582 dVAR; dSP; dTARGET;
a0d0e21e
LW
2583 register IO *nstio;
2584 register IO *gstio;
93d47a36
JH
2585 char namebuf[MAXPATHLEN];
2586#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2587 Sock_size_t len = sizeof (struct sockaddr_in);
2588#else
2589 Sock_size_t len = sizeof namebuf;
2590#endif
159b6efe
NC
2591 GV * const ggv = MUTABLE_GV(POPs);
2592 GV * const ngv = MUTABLE_GV(POPs);
a0d0e21e
LW
2593 int fd;
2594
a0d0e21e
LW
2595 if (!ngv)
2596 goto badexit;
2597 if (!ggv)
2598 goto nuts;
2599
2600 gstio = GvIO(ggv);
2601 if (!gstio || !IoIFP(gstio))
2602 goto nuts;
2603
2604 nstio = GvIOn(ngv);
93d47a36 2605 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
e294cc5d
JH
2606#if defined(OEMVS)
2607 if (len == 0) {
2608 /* Some platforms indicate zero length when an AF_UNIX client is
2609 * not bound. Simulate a non-zero-length sockaddr structure in
2610 * this case. */
2611 namebuf[0] = 0; /* sun_len */
2612 namebuf[1] = AF_UNIX; /* sun_family */
2613 len = 2;
2614 }
2615#endif
2616
a0d0e21e
LW
2617 if (fd < 0)
2618 goto badexit;
a70048fb
AB
2619 if (IoIFP(nstio))
2620 do_close(ngv, FALSE);
460c8493
IZ
2621 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2622 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2623 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2624 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW
2625 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2626 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2627 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW
2628 goto badexit;
2629 }
8d2a6795
GS
2630#if defined(HAS_FCNTL) && defined(F_SETFD)
2631 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2632#endif
a0d0e21e 2633
ed79a026 2634#ifdef EPOC
93d47a36 2635 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2636 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2637#endif
381c1bae 2638#ifdef __SCO_VERSION__
93d47a36 2639 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2640#endif
ed79a026 2641
93d47a36 2642 PUSHp(namebuf, len);
a0d0e21e
LW
2643 RETURN;
2644
2645nuts:
599cee73 2646 if (ckWARN(WARN_CLOSED))
bc37a18f 2647 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2648 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2649
2650badexit:
2651 RETPUSHUNDEF;
2652
2653#else
cea2e8a9 2654 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW
2655#endif
2656}
2657
2658PP(pp_shutdown)
2659{
a0d0e21e 2660#ifdef HAS_SOCKET
97aff369 2661 dVAR; dSP; dTARGET;
7452cf6a 2662 const int how = POPi;
159b6efe 2663 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2664 register IO * const io = GvIOn(gv);
a0d0e21e
LW
2665
2666 if (!io || !IoIFP(io))
2667 goto nuts;
2668
6ad3d225 2669 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW
2670 RETURN;
2671
2672nuts:
599cee73 2673 if (ckWARN(WARN_CLOSED))
bc37a18f 2674 report_evil_fh(gv, io, PL_op->op_type);
93189314 2675 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2676 RETPUSHUNDEF;
2677#else
cea2e8a9 2678 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW
2679#endif
2680}
2681
a0d0e21e
LW
2682PP(pp_ssockopt)
2683{
a0d0e21e 2684#ifdef HAS_SOCKET
97aff369 2685 dVAR; dSP;
7452cf6a 2686 const int optype = PL_op->op_type;
561b68a9 2687 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
7452cf6a
AL
2688 const unsigned int optname = (unsigned int) POPi;
2689 const unsigned int lvl = (unsigned int) POPi;
159b6efe 2690 GV * const gv = MUTABLE_GV(POPs);
7452cf6a 2691 register IO * const io = GvIOn(gv);
a0d0e21e 2692 int fd;
1e422769 2693 Sock_size_t len;
a0d0e21e 2694
a0d0e21e
LW
2695 if (!io || !IoIFP(io))
2696 goto nuts;
2697
760ac839 2698 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2699 switch (optype) {
2700 case OP_GSOCKOPT:
748a9306 2701 SvGROW(sv, 257);
a0d0e21e 2702 (void)SvPOK_only(sv);
748a9306
LW
2703 SvCUR_set(sv,256);
2704 *SvEND(sv) ='\0';
1e422769 2705 len = SvCUR(sv);
6ad3d225 2706 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2707 goto nuts2;
1e422769 2708 SvCUR_set(sv, len);
748a9306 2709 *SvEND(sv) ='\0';
a0d0e21e
LW
2710 PUSHs(sv);
2711 break;
2712 case OP_SSOCKOPT: {
1215b447
JH
2713#if defined(__SYMBIAN32__)
2714# define SETSOCKOPT_OPTION_VALUE_T void *
2715#else
2716# define SETSOCKOPT_OPTION_VALUE_T const char *
2717#endif
2718 /* XXX TODO: We need to have a proper type (a Configure probe,
2719 * etc.) for what the C headers think of the third argument of
2720 * setsockopt(), the option_value read-only buffer: is it
2721 * a "char *", or a "void *", const or not. Some compilers
2722 * don't take kindly to e.g. assuming that "char *" implicitly
2723 * promotes to a "void *", or to explicitly promoting/demoting
2724 * consts to non/vice versa. The "const void *" is the SUS
2725 * definition, but that does not fly everywhere for the above
2726 * reasons. */
2727 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769
PP
2728 int aint;
2729 if (SvPOKp(sv)) {
2d8e6c8d 2730 STRLEN l;
1215b447 2731 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2732 len = l;
1e422769 2733 }
56ee1660 2734 else {
a0d0e21e 2735 aint = (int)SvIV(sv);
1215b447 2736 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW
2737 len = sizeof(int);
2738 }
6ad3d225 2739 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2740 goto nuts2;
3280af22 2741 PUSHs(&PL_sv_yes);
a0d0e21e
LW
2742 }
2743 break;
2744 }
2745 RETURN;
2746
2747nuts:
599cee73 2748 if (ckWARN(WARN_CLOSED))
bc37a18f 2749 report_evil_fh(gv, io, optype);
93189314 2750 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2751nuts2:
2752 RETPUSHUNDEF;
2753
2754#else
af51a00e 2755 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW
2756#endif
2757}
2758
a0d0e21e
LW
2759PP(pp_getpeername)
2760{
a0d0e21e 2761#ifdef HAS_SOCKET
97aff369 2762 dVAR; dSP;
7452cf6a 2763 const int optype = PL_op->op_type;
159b6efe 2764 GV * const gv = MUTABLE_GV(POPs);
7452cf6a
AL
2765 register IO * const io = GvIOn(gv);
2766 Sock_size_t len;
a0d0e21e
LW
2767 SV *sv;
2768 int fd;
a0d0e21e
LW
2769
2770 if (!io || !IoIFP(io))
2771 goto nuts;
2772
561b68a9 2773 sv = sv_2mortal(newSV(257));
748a9306 2774 (void)SvPOK_only(sv);
1e422769
PP
2775 len = 256;
2776 SvCUR_set(sv, len);
748a9306 2777 *SvEND(sv) ='\0';
760ac839 2778 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2779 switch (optype) {
2780 case OP_GETSOCKNAME:
6ad3d225 2781 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW
2782 goto nuts2;
2783 break;
2784 case OP_GETPEERNAME:
6ad3d225 2785 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2786 goto nuts2;
490ab354
JH
2787#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2788 {
2789 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";
2790 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2791 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2792 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2793 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2794 goto nuts2;
490ab354
JH
2795 }
2796 }
2797#endif
a0d0e21e
LW
2798 break;
2799 }
13826f2c
CS
2800#ifdef BOGUS_GETNAME_RETURN
2801 /* Interactive Unix, getpeername() and getsockname()
2802 does not return valid namelen */
1e422769
PP
2803 if (len == BOGUS_GETNAME_RETURN)
2804 len = sizeof(struct sockaddr);
13826f2c 2805#endif
1e422769 2806 SvCUR_set(sv, len);
748a9306 2807 *SvEND(sv) ='\0';
a0d0e21e
LW
2808 PUSHs(sv);
2809 RETURN;
2810
2811nuts:
599cee73 2812 if (ckWARN(WARN_CLOSED))
bc37a18f 2813 report_evil_fh(gv, io, optype);
93189314 2814 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2815nuts2:
2816 RETPUSHUNDEF;
2817
2818#else
af51a00e 2819 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW
2820#endif
2821}
2822
2823/* Stat calls. */
2824
a0d0e21e
LW
2825PP(pp_stat)
2826{
97aff369 2827 dVAR;
39644a26 2828 dSP;
10edeb5d 2829 GV *gv = NULL;
ad02613c 2830 IO *io;
54310121 2831 I32 gimme;
a0d0e21e
LW
2832 I32 max = 13;
2833
533c011a 2834 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2835 gv = cGVOP_gv;
8a4e5b40 2836 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2837 if (gv != PL_defgv) {
5d329e6e 2838 do_fstat_warning_check:
a2a5de95
NC
2839 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
2840 "lstat() on filehandle %s", gv ? GvENAME(gv) : "");
5d3e98de 2841 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2842 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD
2843 }
2844
748a9306 2845 do_fstat:
2dd78f96 2846 if (gv != PL_defgv) {
3280af22 2847 PL_laststype = OP_STAT;
2dd78f96 2848 PL_statgv = gv;
76f68e9b 2849 sv_setpvs(PL_statname, "");
5228a96c 2850 if(gv) {
ad02613c
SP
2851 io = GvIO(gv);
2852 do_fstat_have_io:
5228a96c
SP
2853 if (io) {
2854 if (IoIFP(io)) {
2855 PL_laststatval =
2856 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2857 } else if (IoDIRP(io)) {
5228a96c 2858 PL_laststatval =
3497a01f 2859 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
5228a96c
SP
2860 } else {
2861 PL_laststatval = -1;
2862 }
2863 }
2864 }
2865 }
2866
9ddeeac9 2867 if (PL_laststatval < 0) {
2dd78f96
JH
2868 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2869 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2870 max = 0;
9ddeeac9 2871 }
a0d0e21e
LW
2872 }
2873 else {
7452cf6a 2874 SV* const sv = POPs;
6e592b3a 2875 if (isGV_with_GP(sv)) {
159b6efe 2876 gv = MUTABLE_GV(sv);
748a9306 2877 goto do_fstat;
6e592b3a 2878 } else if(SvROK(sv) && isGV_with_GP(SvRV(sv))) {
159b6efe 2879 gv = MUTABLE_GV(SvRV(sv));
ad02613c
SP
2880 if (PL_op->op_type == OP_LSTAT)
2881 goto do_fstat_warning_check;
2882 goto do_fstat;
2883 } else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2884 io = MUTABLE_IO(SvRV(sv));
ad02613c
SP
2885 if (PL_op->op_type == OP_LSTAT)
2886 goto do_fstat_warning_check;
2887 goto do_fstat_have_io;
2888 }
2889
0510663f 2890 sv_setpv(PL_statname, SvPV_nolen_const(sv));
a0714e2c 2891 PL_statgv = NULL;
533c011a
NIS
2892 PL_laststype = PL_op->op_type;
2893 if (PL_op->op_type == OP_LSTAT)
0510663f 2894 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2895 else
0510663f 2896 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2897 if (PL_laststatval < 0) {
0510663f 2898 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2899 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW
2900 max = 0;
2901 }
2902 }
2903
54310121
PP
2904 gimme = GIMME_V;
2905 if (gimme != G_ARRAY) {
2906 if (gimme != G_VOID)
2907 XPUSHs(boolSV(max));
2908 RETURN;
a0d0e21e
LW
2909 }
2910 if (max) {
36477c24
PP
2911 EXTEND(SP, max);
2912 EXTEND_MORTAL(max);
6e449a3a
MHM
2913 mPUSHi(PL_statcache.st_dev);
2914 mPUSHi(PL_statcache.st_ino);
2915 mPUSHu(PL_statcache.st_mode);
2916 mPUSHu(PL_statcache.st_nlink);
146174a9 2917#if Uid_t_size > IVSIZE
6e449a3a 2918 mPUSHn(PL_statcache.st_uid);
146174a9 2919#else
23dcd6c8 2920# if Uid_t_sign <= 0
6e449a3a 2921 mPUSHi(PL_statcache.st_uid);
23dcd6c8 2922# else
6e449a3a 2923 mPUSHu(PL_statcache.st_uid);
23dcd6c8 2924# endif
146174a9 2925#endif
301e8125 2926#if Gid_t_size > IVSIZE
6e449a3a 2927 mPUSHn(PL_statcache.st_gid);
146174a9 2928#else
23dcd6c8 2929# if Gid_t_sign <= 0
6e449a3a 2930 mPUSHi(PL_statcache.st_gid);
23dcd6c8 2931# else
6e449a3a 2932 mPUSHu(PL_statcache.st_gid);
23dcd6c8 2933# endif
146174a9 2934#endif
cbdc8872 2935#ifdef USE_STAT_RDEV
6e449a3a 2936 mPUSHi(PL_statcache.st_rdev);
cbdc8872 2937#else
84bafc02 2938 PUSHs(newSVpvs_flags("", SVs_TEMP));
cbdc8872 2939#endif
146174a9 2940#if Off_t_size > IVSIZE
6e449a3a 2941 mPUSHn(PL_statcache.st_size);
146174a9 2942#else
6e449a3a 2943 mPUSHi(PL_statcache.st_size);
146174a9 2944#endif
cbdc8872 2945#ifdef BIG_TIME
6e449a3a
MHM
2946 mPUSHn(PL_statcache.st_atime);
2947 mPUSHn(PL_statcache.st_mtime);
2948 mPUSHn(PL_statcache.st_ctime);
cbdc8872 2949#else
6e449a3a
MHM
2950 mPUSHi(PL_statcache.st_atime);
2951 mPUSHi(PL_statcache.st_mtime);
2952 mPUSHi(PL_statcache.st_ctime);
cbdc8872 2953#endif
a0d0e21e 2954#ifdef USE_STAT_BLOCKS
6e449a3a
MHM
2955 mPUSHu(PL_statcache.st_blksize);
2956 mPUSHu(PL_statcache.st_blocks);
a0d0e21e 2957#else
84bafc02
NC
2958 PUSHs(newSVpvs_flags("", SVs_TEMP));
2959 PUSHs(newSVpvs_flags("", SVs_TEMP));
a0d0e21e
LW
2960#endif
2961 }
2962 RETURN;
2963}
2964
6f1401dc
DM
2965#define tryAMAGICftest_MG(chr) STMT_START { \
2966 if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \
2967 && S_try_amagic_ftest(aTHX_ chr)) \
2968 return NORMAL; \
2969 } STMT_END
2970
2971STATIC bool
2972S_try_amagic_ftest(pTHX_ char chr) {
2973 dVAR;
2974 dSP;
2975 SV* const arg = TOPs;
2976
2977 assert(chr != '?');
2978 SvGETMAGIC(arg);
2979
2980 if ((PL_op->op_flags & OPf_KIDS)
2981 && SvAMAGIC(TOPs))
2982 {
2983 const char tmpchr = chr;
2984 const OP *next;
2985 SV * const tmpsv = amagic_call(arg,
2986 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
2987 ftest_amg, AMGf_unary);
2988
2989 if (!tmpsv)
2990 return FALSE;
2991
2992 SPAGAIN;
2993
2994 next = PL_op->op_next;
2995 if (next->op_type >= OP_FTRREAD &&
2996 next->op_type <= OP_FTBINARY &&
2997 next->op_private & OPpFT_STACKED
2998 ) {
2999 if (SvTRUE(tmpsv))
3000 /* leave the object alone */
3001 return TRUE;
3002 }
3003
3004 SETs(tmpsv);
3005 PUTBACK;
3006 return TRUE;
3007 }
3008 return FALSE;
3009}
3010
3011
fbb0b3b3
RGS
3012/* This macro is used by the stacked filetest operators :
3013 * if the previous filetest failed, short-circuit and pass its value.
3014 * Else, discard it from the stack and continue. --rgs
3015 */
3016#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
d724f706 3017 if (!SvTRUE(TOPs)) { RETURN; } \
fbb0b3b3
RGS
3018 else { (void)POPs; PUTBACK; } \
3019 }
3020
a0d0e21e
LW
3021PP(pp_ftrread)
3022{
97aff369 3023 dVAR;
9cad6237 3024 I32 result;
af9e49b4
NC
3025 /* Not const, because things tweak this below. Not bool, because there's
3026 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
3027#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3028 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
3029 /* Giving some sort of initial value silences compilers. */
3030# ifdef R_OK
3031 int access_mode = R_OK;
3032# else
3033 int access_mode = 0;
3034# endif
5ff3f7a4 3035#else
af9e49b4
NC
3036 /* access_mode is never used, but leaving use_access in makes the
3037 conditional compiling below much clearer. */
3038 I32 use_access = 0;
5ff3f7a4 3039#endif
af9e49b4 3040 int stat_mode = S_IRUSR;
a0d0e21e 3041
af9e49b4 3042 bool effective = FALSE;
07fe7c6a 3043 char opchar = '?';
2a3ff820 3044 dSP;
af9e49b4 3045
7fb13887
BM
3046 switch (PL_op->op_type) {
3047 case OP_FTRREAD: opchar = 'R'; break;
3048 case OP_FTRWRITE: opchar = 'W'; break;
3049 case OP_FTREXEC: opchar = 'X'; break;
3050 case OP_FTEREAD: opchar = 'r'; break;
3051 case OP_FTEWRITE: opchar = 'w'; break;
3052 case OP_FTEEXEC: opchar = 'x'; break;
3053 }
6f1401dc 3054 tryAMAGICftest_MG(opchar);
7fb13887 3055
fbb0b3b3 3056 STACKED_FTEST_CHECK;
af9e49b4
NC
3057
3058 switch (PL_op->op_type) {
3059 case OP_FTRREAD:
3060#if !(defined(HAS_ACCESS) && defined(R_OK))
3061 use_access = 0;
3062#endif
3063 break;
3064
3065 case OP_FTRWRITE:
5ff3f7a4 3066#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 3067 access_mode = W_OK;
5ff3f7a4 3068#else
af9e49b4 3069 use_access = 0;
5ff3f7a4 3070#endif
af9e49b4
NC
3071 stat_mode = S_IWUSR;
3072 break;
a0d0e21e 3073
af9e49b4 3074 case OP_FTREXEC:
5ff3f7a4 3075#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 3076 access_mode = X_OK;
5ff3f7a4 3077#else
af9e49b4 3078 use_access = 0;
5ff3f7a4 3079#endif
af9e49b4
NC
3080 stat_mode = S_IXUSR;
3081 break;
a0d0e21e 3082
af9e49b4 3083 case OP_FTEWRITE:
faee0e31 3084#ifdef PERL_EFF_ACCESS
af9e49b4 3085 access_mode = W_OK;
5ff3f7a4 3086#endif
af9e49b4 3087 stat_mode = S_IWUSR;
7fb13887 3088 /* fall through */
a0d0e21e 3089
af9e49b4
NC
3090 case OP_FTEREAD:
3091#ifndef PERL_EFF_ACCESS
3092 use_access = 0;
3093#endif
3094 effective = TRUE;
3095 break;
3096
af9e49b4 3097 case OP_FTEEXEC:
faee0e31 3098#ifdef PERL_EFF_ACCESS
b376053d 3099 access_mode = X_OK;
5ff3f7a4 3100#else
af9e49b4 3101 use_access = 0;
5ff3f7a4 3102#endif
af9e49b4
NC
3103 stat_mode = S_IXUSR;
3104 effective = TRUE;
3105 break;
3106 }
a0d0e21e 3107
af9e49b4
NC
3108 if (use_access) {
3109#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2c2f35ab 3110 const char *name = POPpx;
af9e49b4
NC
3111 if (effective) {
3112# ifdef PERL_EFF_ACCESS
3113 result = PERL_EFF_ACCESS(name, access_mode);
3114# else
3115 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3116 OP_NAME(PL_op));
3117# endif
3118 }
3119 else {
3120# ifdef HAS_ACCESS
3121 result = access(name, access_mode);
3122# else
3123 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3124# endif
3125 }
5ff3f7a4
GS
3126 if (result == 0)
3127 RETPUSHYES;
3128 if (result < 0)
3129 RETPUSHUNDEF;
3130 RETPUSHNO;
af9e49b4 3131#endif
22865c03 3132 }
af9e49b4 3133
40c852de 3134 result = my_stat_flags(0);
22865c03 3135 SPAGAIN;
a0d0e21e
LW
3136 if (result < 0)
3137 RETPUSHUNDEF;
af9e49b4 3138 if (cando(stat_mode, effective, &PL_statcache))
a0d0e21e
LW
3139 RETPUSHYES;
3140 RETPUSHNO;
3141}
3142
3143PP(pp_ftis)
3144{
97aff369 3145 dVAR;
fbb0b3b3 3146 I32 result;
d7f0a2f4 3147 const int op_type = PL_op->op_type;
07fe7c6a 3148 char opchar = '?';
2a3ff820 3149 dSP;
07fe7c6a
BM
3150
3151 switch (op_type) {
3152 case OP_FTIS: opchar = 'e'; break;
3153 case OP_FTSIZE: opchar = 's'; break;
3154 case OP_FTMTIME: opchar = 'M'; break;
3155 case OP_FTCTIME: opchar = 'C'; break;
3156 case OP_FTATIME: opchar = 'A'; break;
3157 }
6f1401dc 3158 tryAMAGICftest_MG(opchar);
07fe7c6a 3159
fbb0b3b3 3160 STACKED_FTEST_CHECK;
7fb13887 3161
40c852de 3162 result = my_stat_flags(0);
fbb0b3b3 3163 SPAGAIN;
a0d0e21e
LW
3164 if (result < 0)
3165 RETPUSHUNDEF;
d7f0a2f4
NC
3166 if (op_type == OP_FTIS)
3167 RETPUSHYES;
957b0e1d 3168 {
d7f0a2f4
NC
3169 /* You can't dTARGET inside OP_FTIS, because you'll get
3170 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3171 dTARGET;
d7f0a2f4 3172 switch (op_type) {
957b0e1d
NC
3173 case OP_FTSIZE:
3174#if Off_t_size > IVSIZE
3175 PUSHn(PL_statcache.st_size);
3176#else
3177 PUSHi(PL_statcache.st_size);
3178#endif
3179 break;
3180 case OP_FTMTIME:
3181 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3182 break;
3183 case OP_FTATIME:
3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3185 break;
3186 case OP_FTCTIME:
3187 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3188 break;
3189 }
3190 }
3191 RETURN;
a0d0e21e
LW
3192}
3193
a0d0e21e
LW
3194PP(pp_ftrowned)
3195{
97aff369 3196 dVAR;
fbb0b3b3 3197 I32 result;
07fe7c6a 3198 char opchar = '?';
2a3ff820 3199 dSP;
17ad201a 3200
7fb13887
BM
3201 switch (PL_op->op_type) {
3202 case OP_FTROWNED: opchar = 'O'; break;
3203 case OP_FTEOWNED: opchar = 'o'; break;
3204 case OP_FTZERO: opchar = 'z'; break;
3205 case OP_FTSOCK: opchar = 'S'; break;
3206 case OP_FTCHR: opchar = 'c'; break;
3207 case OP_FTBLK: opchar = 'b'; break;
3208 case OP_FTFILE: opchar = 'f'; break;
3209 case OP_FTDIR: opchar = 'd'; break;
3210 case OP_FTPIPE: opchar = 'p'; break;
3211 case OP_FTSUID: opchar = 'u'; break;
3212 case OP_FTSGID: opchar = 'g'; break;
3213 case OP_FTSVTX: opchar = 'k'; break;
3214 }
6f1401dc 3215 tryAMAGICftest_MG(opchar);
7fb13887 3216
1b0124a7
JD
3217 STACKED_FTEST_CHECK;
3218
17ad201a
NC
3219 /* I believe that all these three are likely to be defined on most every
3220 system these days. */
3221#ifndef S_ISUID
c410dd6a 3222 if(PL_op->op_type == OP_FTSUID) {
1b0124a7
JD
3223 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3224 (void) POPs;
17ad201a 3225 RETPUSHNO;
c410dd6a 3226 }
17ad201a
NC
3227#endif
3228#ifndef S_ISGID
c410dd6a 3229 if(PL_op->op_type == OP_FTSGID) {
1b0124a7
JD
3230 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3231 (void) POPs;
17ad201a 3232 RETPUSHNO;
c410dd6a 3233 }
17ad201a
NC
3234#endif
3235#ifndef S_ISVTX
c410dd6a 3236 if(PL_op->op_type == OP_FTSVTX) {
1b0124a7
JD
3237 if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0)
3238 (void) POPs;
17ad201a 3239 RETPUSHNO;
c410dd6a 3240 }
17ad201a
NC
3241#endif
3242
40c852de 3243 result = my_stat_flags(0);
fbb0b3b3 3244 SPAGAIN;
a0d0e21e
LW
3245 if (result < 0)
3246 RETPUSHUNDEF;
f1cb2d48
NC
3247 switch (PL_op->op_type) {
3248 case OP_FTROWNED:
9ab9fa88 3249 if (PL_statcache.st_uid == PL_uid)
f1cb2d48
NC
3250 RETPUSHYES;
3251 break;
3252 case OP_FTEOWNED:
3253 if (PL_statcache.st_uid == PL_euid)
3254 RETPUSHYES;
3255 break;
3256 case OP_FTZERO:
3257 if (PL_statcache.st_size == 0)
3258 RETPUSHYES;
3259 break;
3260 case OP_FTSOCK:
3261 if (S_ISSOCK(PL_statcache.st_mode))
3262 RETPUSHYES;
3263 break;
3264 case OP_FTCHR:
3265 if (S_ISCHR(PL_statcache.st_mode))
3266 RETPUSHYES;
3267 break;
3268 case OP_FTBLK:
3269 if (S_ISBLK(PL_statcache.st_mode))
3270 RETPUSHYES;
3271 break;
3272 case OP_FTFILE:
3273 if (S_ISREG(PL_statcache.st_mode))
3274 RETPUSHYES;
3275 break;
3276 case OP_FTDIR:
3277 if (S_ISDIR(PL_statcache.st_mode))
3278 RETPUSHYES;
3279 break;
3280 case OP_FTPIPE:
3281 if (S_ISFIFO(PL_statcache.st_mode))
3282 RETPUSHYES;
3283 break;
a0d0e21e 3284#ifdef S_ISUID
17ad201a
NC
3285 case OP_FTSUID:
3286 if (PL_statcache.st_mode & S_ISUID)
3287 RETPUSHYES;
3288 break;
a0d0e21e 3289#endif
a0d0e21e 3290#ifdef S_ISGID
17ad201a
NC
3291 case OP_FTSGID:
3292 if (PL_statcache.st_mode & S_ISGID)
3293 RETPUSHYES;
3294 break;
3295#endif
3296#ifdef S_ISVTX
3297 case OP_FTSVTX:
3298 if (PL_statcache.st_mode & S_ISVTX)
3299 RETPUSHYES;
3300 break;
a0d0e21e 3301#endif
17ad201a 3302 }
a0d0e21e
LW
3303 RETPUSHNO;
3304}
3305
17ad201a 3306PP(pp_ftlink)
a0d0e21e 3307{
97aff369 3308 dVAR;
39644a26 3309 dSP;
500ff13f 3310 I32 result;
07fe7c6a 3311
6f1401dc 3312 tryAMAGICftest_MG('l');
40c852de 3313 result = my_lstat_flags(0);
500ff13f
BM
3314 SPAGAIN;
3315
a0d0e21e
LW
3316 if (result < 0)
3317 RETPUSHUNDEF;
17ad201a 3318 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e 3319 RETPUSHYES;
a0d0e21e
LW
3320 RETPUSHNO;
3321}
3322
3323PP(pp_fttty)
3324{
97aff369 3325 dVAR;
39644a26 3326 dSP;
a0d0e21e
LW
3327 int fd;
3328 GV *gv;
a0714e2c 3329 SV *tmpsv = NULL;
0784aae0 3330 char *name = NULL;
40c852de 3331 STRLEN namelen;
fb73857a 3332
6f1401dc 3333 tryAMAGICftest_MG('t');
07fe7c6a 3334
fbb0b3b3
RGS
3335 STACKED_FTEST_CHECK;
3336
533c011a 3337 if (PL_op->op_flags & OPf_REF)
146174a9 3338 gv = cGVOP_gv;
fb73857a 3339 else if (isGV(TOPs))
159b6efe 3340 gv = MUTABLE_GV(POPs);
fb73857a 3341 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3342 gv = MUTABLE_GV(SvRV(POPs));
40c852de
DM
3343 else {
3344 tmpsv = POPs;
3345 name = SvPV_nomg(tmpsv, namelen);
3346 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
3347 }
fb73857a 3348
a0d0e21e 3349 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3350 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3351 else if (tmpsv && SvOK(tmpsv)) {
40c852de
DM
3352 if (isDIGIT(*name))
3353 fd = atoi(name);
7a5fd60d
NC
3354 else
3355 RETPUSHUNDEF;
3356 }
a0d0e21e
LW
3357 else
3358 RETPUSHUNDEF;
6ad3d225 3359 if (PerlLIO_isatty(fd))
a0d0e21e
LW
3360 RETPUSHYES;
3361 RETPUSHNO;
3362}
3363
16d20bd9
AD
3364#if defined(atarist) /* this will work with atariST. Configure will
3365 make guesses for other systems. */
3366# define FILE_base(f) ((f)->_base)
3367# define FILE_ptr(f) ((f)->_ptr)
3368# define FILE_cnt(f) ((f)->_cnt)
3369# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW
3370#endif
3371
3372PP(pp_fttext)
3373{
97aff369 3374 dVAR;
39644a26 3375 dSP;
a0d0e21e
LW
3376 I32 i;
3377 I32 len;
3378 I32 odd = 0;
3379 STDCHAR tbuf[512];
3380 register STDCHAR *s;
3381 register IO *io;
5f05dabc
PP
3382 register SV *sv;
3383 GV *gv;
146174a9 3384 PerlIO *fp;
a0d0e21e 3385
6f1401dc 3386 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3387
fbb0b3b3
RGS
3388 STACKED_FTEST_CHECK;
3389
533c011a 3390 if (PL_op->op_flags & OPf_REF)
146174a9 3391 gv = cGVOP_gv;
5f05dabc 3392 else if (isGV(TOPs))
159b6efe 3393 gv = MUTABLE_GV(POPs);
5f05dabc 3394 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
159b6efe 3395 gv = MUTABLE_GV(SvRV(POPs));
5f05dabc 3396 else
a0714e2c 3397 gv = NULL;
5f05dabc
PP
3398
3399 if (gv) {
a0d0e21e 3400 EXTEND(SP, 1);
3280af22
NIS
3401 if (gv == PL_defgv) {
3402 if (PL_statgv)
3403 io = GvIO(PL_statgv);
a0d0e21e 3404 else {
3280af22 3405 sv = PL_statname;
a0d0e21e
LW
3406 goto really_filename;
3407 }
3408 }
3409 else {
3280af22
NIS
3410 PL_statgv = gv;
3411 PL_laststatval = -1;
76f68e9b 3412 sv_setpvs(PL_statname, "");
3280af22 3413 io = GvIO(PL_statgv);
a0d0e21e
LW
3414 }
3415 if (io && IoIFP(io)) {
5f05dabc 3416 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3417 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS
3418 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3419 if (PL_laststatval < 0)
5f05dabc 3420 RETPUSHUNDEF;
9cbac4c7 3421 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3422 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW
3423 RETPUSHNO;
3424 else
3425 RETPUSHYES;
9cbac4c7 3426 }
a20bf0c3 3427 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3428 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3429 if (i != EOF)