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[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW
1/* pp_sys.c
2 *
fdf8c088 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
1129b882 4 * 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
a0d0e21e
LW
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
4ac71550
TC
16 *
17 * [p.945 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
a0d0e21e
LW
18 */
19
166f8a29
DM
20/* This file contains system pp ("push/pop") functions that
21 * execute the opcodes that make up a perl program. A typical pp function
22 * expects to find its arguments on the stack, and usually pushes its
23 * results onto the stack, hence the 'pp' terminology. Each OP structure
24 * contains a pointer to the relevant pp_foo() function.
25 *
26 * By 'system', we mean ops which interact with the OS, such as pp_open().
27 */
28
a0d0e21e 29#include "EXTERN.h"
864dbfa3 30#define PERL_IN_PP_SYS_C
a0d0e21e 31#include "perl.h"
d95a2ea5
CB
32#include "time64.h"
33#include "time64.c"
a0d0e21e 34
f1066039
JH
35#ifdef I_SHADOW
36/* Shadow password support for solaris - pdo@cs.umd.edu
37 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH
38 * The API is from SysV.
39 *
40 * There are at least two more shadow interfaces,
41 * see the comments in pp_gpwent().
42 *
43 * --jhi */
44# ifdef __hpux__
c529f79d 45/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 46 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH
47# undef MAXINT
48# endif
49# include <shadow.h>
8c0bfa08
PB
50#endif
51
76c32331
PP
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH
56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH
61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB
66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW
74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790 89#elif defined (VMS) && defined (my_getpwent)
9fa802f3 90 struct passwd *Perl_my_getpwent (pTHX);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW
93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW
107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1
PP
111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2
PP
118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
72cc7e2a 121# define my_chsize PerlLIO_chsize
27da23d5
JH
122#else
123# ifdef HAS_TRUNCATE
124# define my_chsize PerlLIO_chsize
125# else
126I32 my_chsize(int fd, Off_t length);
127# endif
cbdc8872
PP
128#endif
129
ff68c719
PP
130#ifdef HAS_FLOCK
131# define FLOCK flock
132#else /* no flock() */
133
36477c24
PP
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138# if defined(HAS_FCNTL) && !defined(I_FCNTL)
139# include <fcntl.h>
140# endif
141
9d9004a9 142# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719
PP
143# define FLOCK fcntl_emulate_flock
144# define FCNTL_EMULATE_FLOCK
145# else /* no flock() or fcntl(F_SETLK,...) */
146# ifdef HAS_LOCKF
147# define FLOCK lockf_emulate_flock
148# define LOCKF_EMULATE_FLOCK
149# endif /* lockf */
150# endif /* no flock() or fcntl(F_SETLK,...) */
151
152# ifdef FLOCK
20ce7b12 153 static int FLOCK (int, int);
ff68c719
PP
154
155 /*
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
158 */
159# ifndef LOCK_SH
160# define LOCK_SH 1
161# endif
162# ifndef LOCK_EX
163# define LOCK_EX 2
164# endif
165# ifndef LOCK_NB
166# define LOCK_NB 4
167# endif
168# ifndef LOCK_UN
169# define LOCK_UN 8
170# endif
171# endif /* emulating flock() */
172
173#endif /* no flock() */
55497cff 174
85ab1d1d 175#define ZBTLEN 10
27da23d5 176static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 177
5ff3f7a4
GS
178#if defined(I_SYS_ACCESS) && !defined(R_OK)
179# include <sys/access.h>
180#endif
181
c529f79d
CB
182#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183# define FD_CLOEXEC 1 /* NeXT needs this */
184#endif
185
a4af207c
JH
186#include "reentr.h"
187
9cffb111
OS
188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
faee0e31 200#undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
5ff3f7a4
GS
201
202/* F_OK unused: if stat() cannot find it... */
203
d7558cad 204#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 205 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
d7558cad 206# define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
5ff3f7a4
GS
207#endif
208
d7558cad 209#if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
3813c136 210# ifdef I_SYS_SECURITY
5ff3f7a4
GS
211# include <sys/security.h>
212# endif
c955f117
JH
213# ifdef ACC_SELF
214 /* HP SecureWare */
d7558cad 215# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
c955f117
JH
216# else
217 /* SCO */
d7558cad 218# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
c955f117 219# endif
5ff3f7a4
GS
220#endif
221
d7558cad 222#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 223 /* AIX */
d7558cad 224# define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
5ff3f7a4
GS
225#endif
226
d7558cad
NC
227
228#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
327c3667
GS
229 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
230 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 231/* The Hard Way. */
327c3667 232STATIC int
7f4774ae 233S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 234{
c4420975
AL
235 const Uid_t ruid = getuid();
236 const Uid_t euid = geteuid();
237 const Gid_t rgid = getgid();
238 const Gid_t egid = getegid();
5ff3f7a4
GS
239 int res;
240
5ff3f7a4 241#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 242 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS
243#else
244#ifdef HAS_SETREUID
245 if (setreuid(euid, ruid))
246#else
247#ifdef HAS_SETRESUID
248 if (setresuid(euid, ruid, (Uid_t)-1))
249#endif
250#endif
dcbac5bb 251 /* diag_listed_as: entering effective %s failed */
cea2e8a9 252 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS
253#endif
254
255#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 256 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS
257#else
258#ifdef HAS_SETREGID
259 if (setregid(egid, rgid))
260#else
261#ifdef HAS_SETRESGID
262 if (setresgid(egid, rgid, (Gid_t)-1))
263#endif
264#endif
dcbac5bb 265 /* diag_listed_as: entering effective %s failed */
cea2e8a9 266 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS
267#endif
268
269 res = access(path, mode);
270
271#ifdef HAS_SETREUID
272 if (setreuid(ruid, euid))
273#else
274#ifdef HAS_SETRESUID
275 if (setresuid(ruid, euid, (Uid_t)-1))
276#endif
277#endif
dcbac5bb 278 /* diag_listed_as: leaving effective %s failed */
cea2e8a9 279 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS
280
281#ifdef HAS_SETREGID
282 if (setregid(rgid, egid))
283#else
284#ifdef HAS_SETRESGID
285 if (setresgid(rgid, egid, (Gid_t)-1))
286#endif
287#endif
dcbac5bb 288 /* diag_listed_as: leaving effective %s failed */
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;
9426e1a5 361 dSP;
9423a867
FC
362 GV * const gv = (PL_op->op_flags & OPf_SPECIAL) ? NULL : (GV *)POPs;
363
364 PUTBACK;
365
151cea25
FC
366 /* make a copy of the pattern if it is gmagical, to ensure that magic
367 * is called once and only once */
9423a867 368 if (SvGMAGICAL(TOPs)) TOPs = sv_2mortal(newSVsv(TOPs));
9426e1a5 369
fc99edcf 370 tryAMAGICunTARGETlist(iter_amg, (PL_op->op_flags & OPf_SPECIAL));
d1bea3d8
DM
371
372 if (PL_op->op_flags & OPf_SPECIAL) {
373 /* call Perl-level glob function instead. Stack args are:
9423a867 374 * MARK, wildcard
d1bea3d8
DM
375 * and following OPs should be: gv(CORE::GLOBAL::glob), entersub
376 * */
377 return NORMAL;
378 }
d67594ff 379 if (PL_globhook) {
d67594ff
FC
380 PL_globhook(aTHX);
381 return NORMAL;
382 }
f5284f61 383
71686f12
GS
384 /* Note that we only ever get here if File::Glob fails to load
385 * without at the same time croaking, for some reason, or if
386 * perl was built with PERL_EXTERNAL_GLOB */
387
d343c3ef 388 ENTER_with_name("glob");
a0d0e21e 389
c90c0ff4 390#ifndef VMS
284167a5 391 if (TAINTING_get) {
7bac28a0
PP
392 /*
393 * The external globbing program may use things we can't control,
394 * so for security reasons we must assume the worst.
395 */
396 TAINT;
22c35a8c 397 taint_proper(PL_no_security, "glob");
7bac28a0 398 }
c90c0ff4 399#endif /* !VMS */
7bac28a0 400
3280af22 401 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
9423a867 402 PL_last_in_gv = gv;
a0d0e21e 403
3280af22 404 SAVESPTR(PL_rs); /* This is not permanent, either. */
84bafc02 405 PL_rs = newSVpvs_flags("\000", SVs_TEMP);
c07a80fd
PP
406#ifndef DOSISH
407#ifndef CSH
6b88bc9c 408 *SvPVX(PL_rs) = '\n';
a0d0e21e 409#endif /* !CSH */
55497cff 410#endif /* !DOSISH */
c07a80fd 411
a0d0e21e 412 result = do_readline();
d343c3ef 413 LEAVE_with_name("glob");
a0d0e21e
LW
414 return result;
415}
416
a0d0e21e
LW
417PP(pp_rcatline)
418{
97aff369 419 dVAR;
146174a9 420 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW
421 return do_readline();
422}
423
424PP(pp_warn)
425{
97aff369 426 dVAR; dSP; dMARK;
c5df3096 427 SV *exsv;
06bf62c7 428 STRLEN len;
b59aed67 429 if (SP - MARK > 1) {
a0d0e21e 430 dTARGET;
3280af22 431 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 432 exsv = TARG;
a0d0e21e
LW
433 SP = MARK + 1;
434 }
b59aed67 435 else if (SP == MARK) {
c5df3096 436 exsv = &PL_sv_no;
b59aed67 437 EXTEND(SP, 1);
83f957ec 438 SP = MARK + 1;
b59aed67 439 }
a0d0e21e 440 else {
c5df3096 441 exsv = TOPs;
ef5fe392 442 if (SvGMAGICAL(exsv)) exsv = sv_mortalcopy(exsv);
a0d0e21e 443 }
06bf62c7 444
72d74926 445 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z
446 /* well-formed exception supplied */
447 }
c5df3096 448 else {
eed484f9
DD
449 SV * const errsv = ERRSV;
450 SvGETMAGIC(errsv);
451 if (SvROK(errsv)) {
452 if (SvGMAGICAL(errsv)) {
ef5fe392 453 exsv = sv_newmortal();
eed484f9 454 sv_setsv_nomg(exsv, errsv);
ef5fe392 455 }
eed484f9 456 else exsv = errsv;
ef5fe392 457 }
eed484f9 458 else if (SvPOKp(errsv) ? SvCUR(errsv) : SvNIOKp(errsv)) {
ef5fe392 459 exsv = sv_newmortal();
eed484f9 460 sv_setsv_nomg(exsv, errsv);
ef5fe392
FC
461 sv_catpvs(exsv, "\t...caught");
462 }
463 else {
c5df3096 464 exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP);
ef5fe392 465 }
c5df3096 466 }
3b7f69a5
FC
467 if (SvROK(exsv) && !PL_warnhook)
468 Perl_warn(aTHX_ "%"SVf, SVfARG(exsv));
469 else warn_sv(exsv);
a0d0e21e
LW
470 RETSETYES;
471}
472
473PP(pp_die)
474{
97aff369 475 dVAR; dSP; dMARK;
c5df3096 476 SV *exsv;
06bf62c7 477 STRLEN len;
96e176bf 478#ifdef VMS
97124ef6
FC
479 VMSISH_HUSHED =
480 VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH);
96e176bf 481#endif
a0d0e21e
LW
482 if (SP - MARK != 1) {
483 dTARGET;
3280af22 484 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 485 exsv = TARG;
a0d0e21e
LW
486 SP = MARK + 1;
487 }
488 else {
c5df3096 489 exsv = TOPs;
a0d0e21e 490 }
c5df3096 491
72d74926 492 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z
493 /* well-formed exception supplied */
494 }
eed484f9
DD
495 else {
496 SV * const errsv = ERRSV;
8b3945e7 497 SvGETMAGIC(errsv);
eed484f9
DD
498 if (SvROK(errsv)) {
499 exsv = errsv;
500 if (sv_isobject(exsv)) {
501 HV * const stash = SvSTASH(SvRV(exsv));
502 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
503 if (gv) {
504 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
505 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
506 EXTEND(SP, 3);
507 PUSHMARK(SP);
508 PUSHs(exsv);
509 PUSHs(file);
510 PUSHs(line);
511 PUTBACK;
512 call_sv(MUTABLE_SV(GvCV(gv)),
513 G_SCALAR|G_EVAL|G_KEEPERR);
514 exsv = sv_mortalcopy(*PL_stack_sp--);
515 }
05423cc9 516 }
4e6ea2c3 517 }
8b3945e7 518 else if (SvPOK(errsv) && SvCUR(errsv)) {
eed484f9
DD
519 exsv = sv_mortalcopy(errsv);
520 sv_catpvs(exsv, "\t...propagated");
521 }
522 else {
523 exsv = newSVpvs_flags("Died", SVs_TEMP);
524 }
c5df3096 525 }
9fed9930 526 return die_sv(exsv);
a0d0e21e
LW
527}
528
529/* I/O. */
530
d682515d 531OP *
3e0cb5de 532Perl_tied_method(pTHX_ SV *methname, SV **sp, SV *const sv,
d682515d 533 const MAGIC *const mg, const U32 flags, U32 argc, ...)
6bcca55b 534{
d8ef3a16
DM
535 SV **orig_sp = sp;
536 I32 ret_args;
537
d682515d 538 PERL_ARGS_ASSERT_TIED_METHOD;
6bcca55b
NC
539
540 /* Ensure that our flag bits do not overlap. */
d682515d
NC
541 assert((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
542 assert((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
94bc412f 543 assert((TIED_METHOD_SAY & G_WANT) == 0);
6bcca55b 544
d8ef3a16
DM
545 PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
546 PUSHSTACKi(PERLSI_MAGIC);
547 EXTEND(SP, argc+1); /* object + args */
6bcca55b 548 PUSHMARK(sp);
d682515d 549 PUSHs(SvTIED_obj(sv, mg));
d8ef3a16
DM
550 if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
551 Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
1a8c1d59 552 sp += argc;
d8ef3a16 553 }
1a8c1d59 554 else if (argc) {
d682515d
NC
555 const U32 mortalize_not_needed
556 = flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
6bcca55b 557 va_list args;
0d5509eb 558 va_start(args, argc);
6bcca55b
NC
559 do {
560 SV *const arg = va_arg(args, SV *);
561 if(mortalize_not_needed)
562 PUSHs(arg);
563 else
564 mPUSHs(arg);
565 } while (--argc);
566 va_end(args);
567 }
568
569 PUTBACK;
d682515d 570 ENTER_with_name("call_tied_method");
94bc412f
NC
571 if (flags & TIED_METHOD_SAY) {
572 /* local $\ = "\n" */
573 SAVEGENERICSV(PL_ors_sv);
574 PL_ors_sv = newSVpvs("\n");
575 }
3e0cb5de 576 ret_args = call_sv(methname, (flags & G_WANT)|G_METHOD_NAMED);
d8ef3a16
DM
577 SPAGAIN;
578 orig_sp = sp;
579 POPSTACK;
580 SPAGAIN;
581 if (ret_args) { /* copy results back to original stack */
582 EXTEND(sp, ret_args);
583 Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
584 sp += ret_args;
585 PUTBACK;
586 }
d682515d 587 LEAVE_with_name("call_tied_method");
6bcca55b
NC
588 return NORMAL;
589}
590
d682515d
NC
591#define tied_method0(a,b,c,d) \
592 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
593#define tied_method1(a,b,c,d,e) \
594 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
595#define tied_method2(a,b,c,d,e,f) \
596 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
6bcca55b 597
a0d0e21e
LW
598PP(pp_open)
599{
27da23d5 600 dVAR; dSP;
a567e93b
NIS
601 dMARK; dORIGMARK;
602 dTARGET;
a0d0e21e 603 SV *sv;
5b468f54 604 IO *io;
5c144d81 605 const char *tmps;
a0d0e21e 606 STRLEN len;
a567e93b 607 bool ok;
a0d0e21e 608
159b6efe 609 GV * const gv = MUTABLE_GV(*++MARK);
c4420975 610
13be902c 611 if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
cea2e8a9 612 DIE(aTHX_ PL_no_usym, "filehandle");
abc718f2 613
a79db61d 614 if ((io = GvIOp(gv))) {
a5e1d062 615 const MAGIC *mg;
36477c24 616 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 617
a2a5de95 618 if (IoDIRP(io))
d1d15184 619 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
d0c0e7dd
FC
620 "Opening dirhandle %"HEKf" also as a file",
621 HEKfARG(GvENAME_HEK(gv)));
abc718f2 622
ad64d0ec 623 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
c4420975
AL
624 if (mg) {
625 /* Method's args are same as ours ... */
626 /* ... except handle is replaced by the object */
3e0cb5de 627 return Perl_tied_method(aTHX_ SV_CONST(OPEN), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
628 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
629 sp - mark);
c4420975 630 }
4592e6ca
NIS
631 }
632
a567e93b
NIS
633 if (MARK < SP) {
634 sv = *++MARK;
635 }
636 else {
35a08ec7 637 sv = GvSVn(gv);
a567e93b
NIS
638 }
639
5c144d81 640 tmps = SvPV_const(sv, len);
4608196e 641 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
a567e93b
NIS
642 SP = ORIGMARK;
643 if (ok)
3280af22
NIS
644 PUSHi( (I32)PL_forkprocess );
645 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW
646 PUSHi(0);
647 else
648 RETPUSHUNDEF;
649 RETURN;
650}
651
652PP(pp_close)
653{
27da23d5 654 dVAR; dSP;
30901a8a
FC
655 GV * const gv =
656 MAXARG == 0 || (!TOPs && !POPs) ? PL_defoutgv : MUTABLE_GV(POPs);
1d603a67 657
2addaaf3
NC
658 if (MAXARG == 0)
659 EXTEND(SP, 1);
660
a79db61d
AL
661 if (gv) {
662 IO * const io = GvIO(gv);
663 if (io) {
a5e1d062 664 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 665 if (mg) {
3e0cb5de 666 return tied_method0(SV_CONST(CLOSE), SP, MUTABLE_SV(io), mg);
a79db61d
AL
667 }
668 }
1d603a67 669 }
54310121 670 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW
671 RETURN;
672}
673
674PP(pp_pipe_op)
675{
a0d0e21e 676#ifdef HAS_PIPE
97aff369 677 dVAR;
9cad6237 678 dSP;
eb578fdb
KW
679 IO *rstio;
680 IO *wstio;
a0d0e21e
LW
681 int fd[2];
682
159b6efe
NC
683 GV * const wgv = MUTABLE_GV(POPs);
684 GV * const rgv = MUTABLE_GV(POPs);
a0d0e21e 685
8a6c0fcb
FC
686 assert (isGV_with_GP(rgv));
687 assert (isGV_with_GP(wgv));
a0d0e21e 688 rstio = GvIOn(rgv);
a0d0e21e
LW
689 if (IoIFP(rstio))
690 do_close(rgv, FALSE);
49225470
DD
691
692 wstio = GvIOn(wgv);
a0d0e21e
LW
693 if (IoIFP(wstio))
694 do_close(wgv, FALSE);
695
6ad3d225 696 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW
697 goto badexit;
698
460c8493
IZ
699 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
700 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 701 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 702 IoIFP(wstio) = IoOFP(wstio);
50952442
JH
703 IoTYPE(rstio) = IoTYPE_RDONLY;
704 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW
705
706 if (!IoIFP(rstio) || !IoOFP(wstio)) {
a79db61d
AL
707 if (IoIFP(rstio))
708 PerlIO_close(IoIFP(rstio));
709 else
710 PerlLIO_close(fd[0]);
711 if (IoOFP(wstio))
712 PerlIO_close(IoOFP(wstio));
713 else
714 PerlLIO_close(fd[1]);
a0d0e21e
LW
715 goto badexit;
716 }
4771b018
GS
717#if defined(HAS_FCNTL) && defined(F_SETFD)
718 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
719 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
720#endif
a0d0e21e
LW
721 RETPUSHYES;
722
723badexit:
724 RETPUSHUNDEF;
725#else
cea2e8a9 726 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW
727#endif
728}
729
730PP(pp_fileno)
731{
27da23d5 732 dVAR; dSP; dTARGET;
a0d0e21e
LW
733 GV *gv;
734 IO *io;
760ac839 735 PerlIO *fp;
a5e1d062 736 const MAGIC *mg;
4592e6ca 737
a0d0e21e
LW
738 if (MAXARG < 1)
739 RETPUSHUNDEF;
159b6efe 740 gv = MUTABLE_GV(POPs);
9c9f25b8 741 io = GvIO(gv);
4592e6ca 742
9c9f25b8 743 if (io
ad64d0ec 744 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
5b468f54 745 {
3e0cb5de 746 return tied_method0(SV_CONST(FILENO), SP, MUTABLE_SV(io), mg);
4592e6ca
NIS
747 }
748
9c9f25b8 749 if (!io || !(fp = IoIFP(io))) {
c289d2f7
JH
750 /* Can't do this because people seem to do things like
751 defined(fileno($foo)) to check whether $foo is a valid fh.
51087808
NC
752
753 report_evil_fh(gv);
c289d2f7 754 */
a0d0e21e 755 RETPUSHUNDEF;
c289d2f7
JH
756 }
757
760ac839 758 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW
759 RETURN;
760}
761
762PP(pp_umask)
763{
97aff369 764 dVAR;
27da23d5 765 dSP;
d7e492a4 766#ifdef HAS_UMASK
27da23d5 767 dTARGET;
761237fe 768 Mode_t anum;
a0d0e21e 769
58536d15 770 if (MAXARG < 1 || (!TOPs && !POPs)) {
b0b546b3
GA
771 anum = PerlLIO_umask(022);
772 /* setting it to 022 between the two calls to umask avoids
773 * to have a window where the umask is set to 0 -- meaning
774 * that another thread could create world-writeable files. */
775 if (anum != 022)
776 (void)PerlLIO_umask(anum);
a0d0e21e
LW
777 }
778 else
6ad3d225 779 anum = PerlLIO_umask(POPi);
a0d0e21e
LW
780 TAINT_PROPER("umask");
781 XPUSHi(anum);
782#else
a0288114 783 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS
784 * Otherwise it's harmless and more useful to just return undef
785 * since 'group' and 'other' concepts probably don't exist here. */
58536d15 786 if (MAXARG >= 1 && (TOPs||POPs) && (POPi & 0700))
cea2e8a9 787 DIE(aTHX_ "umask not implemented");
6b88bc9c 788 XPUSHs(&PL_sv_undef);
a0d0e21e
LW
789#endif
790 RETURN;
791}
792
793PP(pp_binmode)
794{
27da23d5 795 dVAR; dSP;
a0d0e21e
LW
796 GV *gv;
797 IO *io;
760ac839 798 PerlIO *fp;
a0714e2c 799 SV *discp = NULL;
a0d0e21e
LW
800
801 if (MAXARG < 1)
802 RETPUSHUNDEF;
60382766 803 if (MAXARG > 1) {
16fe6d59 804 discp = POPs;
60382766 805 }
a0d0e21e 806
159b6efe 807 gv = MUTABLE_GV(POPs);
9c9f25b8 808 io = GvIO(gv);
4592e6ca 809
9c9f25b8 810 if (io) {
a5e1d062 811 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 812 if (mg) {
bc0c81ca
NC
813 /* This takes advantage of the implementation of the varargs
814 function, which I don't think that the optimiser will be able to
815 figure out. Although, as it's a static function, in theory it
816 could. */
3e0cb5de 817 return Perl_tied_method(aTHX_ SV_CONST(BINMODE), SP, MUTABLE_SV(io), mg,
d682515d
NC
818 G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
819 discp ? 1 : 0, discp);
a79db61d 820 }
4592e6ca 821 }
a0d0e21e 822
9c9f25b8 823 if (!io || !(fp = IoIFP(io))) {
51087808 824 report_evil_fh(gv);
b5fe5ca2 825 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC
826 RETPUSHUNDEF;
827 }
a0d0e21e 828
40d98b49 829 PUTBACK;
f0a78170 830 {
a79b25b7
VP
831 STRLEN len = 0;
832 const char *d = NULL;
833 int mode;
834 if (discp)
835 d = SvPV_const(discp, len);
836 mode = mode_from_discipline(d, len);
f0a78170
NC
837 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
838 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
839 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
840 SPAGAIN;
841 RETPUSHUNDEF;
842 }
843 }
844 SPAGAIN;
845 RETPUSHYES;
846 }
847 else {
848 SPAGAIN;
849 RETPUSHUNDEF;
38af81ff 850 }
40d98b49 851 }
a0d0e21e
LW
852}
853
854PP(pp_tie)
855{
27da23d5 856 dVAR; dSP; dMARK;
a0d0e21e 857 HV* stash;
07822e36 858 GV *gv = NULL;
a0d0e21e 859 SV *sv;
1df70142 860 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 861 const char *methname;
14befaf4 862 int how = PERL_MAGIC_tied;
e336de0d 863 U32 items;
c4420975 864 SV *varsv = *++MARK;
a0d0e21e 865
6b05c17a
NIS
866 switch(SvTYPE(varsv)) {
867 case SVt_PVHV:
aec0c0cc
FC
868 {
869 HE *entry;
6b05c17a 870 methname = "TIEHASH";
aec0c0cc
FC
871 if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) {
872 HvLAZYDEL_off(varsv);
873 hv_free_ent((HV *)varsv, entry);
874 }
85fbaab2 875 HvEITER_set(MUTABLE_HV(varsv), 0);
6b05c17a 876 break;
aec0c0cc 877 }
6b05c17a
NIS
878 case SVt_PVAV:
879 methname = "TIEARRAY";
ce65bc73
FC
880 if (!AvREAL(varsv)) {
881 if (!AvREIFY(varsv))
882 Perl_croak(aTHX_ "Cannot tie unreifiable array");
883 av_clear((AV *)varsv);
884 AvREIFY_off(varsv);
885 AvREAL_on(varsv);
886 }
6b05c17a
NIS
887 break;
888 case SVt_PVGV:
13be902c 889 case SVt_PVLV:
8bb5f786 890 if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
6e592b3a
BM
891 methname = "TIEHANDLE";
892 how = PERL_MAGIC_tiedscalar;
893 /* For tied filehandles, we apply tiedscalar magic to the IO
894 slot of the GP rather than the GV itself. AMS 20010812 */
895 if (!GvIOp(varsv))
896 GvIOp(varsv) = newIO();
ad64d0ec 897 varsv = MUTABLE_SV(GvIOp(varsv));
6e592b3a
BM
898 break;
899 }
13733cde
FC
900 if (SvTYPE(varsv) == SVt_PVLV && LvTYPE(varsv) == 'y') {
901 vivify_defelem(varsv);
902 varsv = LvTARG(varsv);
903 }
6e592b3a 904 /* FALL THROUGH */
6b05c17a
NIS
905 default:
906 methname = "TIESCALAR";
14befaf4 907 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS
908 break;
909 }
e336de0d 910 items = SP - MARK++;
a91d1d42 911 if (sv_isobject(*MARK)) { /* Calls GET magic. */
d343c3ef 912 ENTER_with_name("call_TIE");
e788e7d3 913 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 914 PUSHMARK(SP);
eb160463 915 EXTEND(SP,(I32)items);
e336de0d
GS
916 while (items--)
917 PUSHs(*MARK++);
918 PUTBACK;
864dbfa3 919 call_method(methname, G_SCALAR);
301e8125 920 }
6b05c17a 921 else {
086d2913
NC
922 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
923 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
924 * wrong error message, and worse case, supreme action at a distance.
925 * (Sorry obfuscation writers. You're not going to be given this one.)
6b05c17a 926 */
4886938f
BF
927 stash = gv_stashsv(*MARK, 0);
928 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d 929 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
a91d1d42 930 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
6b05c17a 931 }
d343c3ef 932 ENTER_with_name("call_TIE");
e788e7d3 933 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 934 PUSHMARK(SP);
eb160463 935 EXTEND(SP,(I32)items);
e336de0d
GS
936 while (items--)
937 PUSHs(*MARK++);
938 PUTBACK;
ad64d0ec 939 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
6b05c17a 940 }
a0d0e21e
LW
941 SPAGAIN;
942
943 sv = TOPs;
d3acc0f7 944 POPSTACK;
a0d0e21e 945 if (sv_isobject(sv)) {
33c27489 946 sv_unmagic(varsv, how);
ae21d580 947 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 948 if (varsv == SvRV(sv) &&
d87ebaca
YST
949 (SvTYPE(varsv) == SVt_PVAV ||
950 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH
951 Perl_croak(aTHX_
952 "Self-ties of arrays and hashes are not supported");
a0714e2c 953 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
a0d0e21e 954 }
d343c3ef 955 LEAVE_with_name("call_TIE");
3280af22 956 SP = PL_stack_base + markoff;
a0d0e21e
LW
957 PUSHs(sv);
958 RETURN;
959}
960
961PP(pp_untie)
962{
27da23d5 963 dVAR; dSP;
5b468f54 964 MAGIC *mg;
33c27489 965 SV *sv = POPs;
1df70142 966 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 967 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 968
ca0d4ed9 969 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54
AMS
970 RETPUSHYES;
971
13733cde
FC
972 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
973 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
974
65eba18f 975 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 976 SV * const obj = SvRV(SvTIED_obj(sv, mg));
fa2b88e0 977 if (obj) {
c4420975 978 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
0bd48802 979 CV *cv;
c4420975 980 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0 981 PUSHMARK(SP);
c33ef3ac 982 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
6e449a3a 983 mXPUSHi(SvREFCNT(obj) - 1);
fa2b88e0 984 PUTBACK;
d343c3ef 985 ENTER_with_name("call_UNTIE");
ad64d0ec 986 call_sv(MUTABLE_SV(cv), G_VOID);
d343c3ef 987 LEAVE_with_name("call_UNTIE");
fa2b88e0
JS
988 SPAGAIN;
989 }
a2a5de95
NC
990 else if (mg && SvREFCNT(obj) > 1) {
991 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
992 "untie attempted while %"UVuf" inner references still exist",
993 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 994 }
cbdc8872
PP
995 }
996 }
38193a09 997 sv_unmagic(sv, how) ;
55497cff 998 RETPUSHYES;
a0d0e21e
LW
999}
1000
c07a80fd
PP
1001PP(pp_tied)
1002{
97aff369 1003 dVAR;
39644a26 1004 dSP;
1b6737cc 1005 const MAGIC *mg;
33c27489 1006 SV *sv = POPs;
1df70142 1007 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 1008 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54 1009
4be76e1f 1010 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54 1011 RETPUSHUNDEF;
c07a80fd 1012
13733cde
FC
1013 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
1014 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
1015
155aba94 1016 if ((mg = SvTIED_mg(sv, how))) {
dc456155 1017 PUSHs(SvTIED_obj(sv, mg));
33c27489 1018 RETURN;
c07a80fd 1019 }
c07a80fd
PP
1020 RETPUSHUNDEF;
1021}
1022
a0d0e21e
LW
1023PP(pp_dbmopen)
1024{
27da23d5 1025 dVAR; dSP;
a0d0e21e
LW
1026 dPOPPOPssrl;
1027 HV* stash;
07822e36 1028 GV *gv = NULL;
a0d0e21e 1029
85fbaab2 1030 HV * const hv = MUTABLE_HV(POPs);
84bafc02 1031 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
da51bb9b 1032 stash = gv_stashsv(sv, 0);
8ebc5c01 1033 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 1034 PUTBACK;
864dbfa3 1035 require_pv("AnyDBM_File.pm");
a0d0e21e 1036 SPAGAIN;
eff494dd 1037 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 1038 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW
1039 }
1040
57d3b86d 1041 ENTER;
924508f0 1042 PUSHMARK(SP);
6b05c17a 1043
924508f0 1044 EXTEND(SP, 5);
a0d0e21e
LW
1045 PUSHs(sv);
1046 PUSHs(left);
1047 if (SvIV(right))
6e449a3a 1048 mPUSHu(O_RDWR|O_CREAT);
a0d0e21e 1049 else
480e0d3c 1050 {
6e449a3a 1051 mPUSHu(O_RDWR);
480e0d3c
FC
1052 if (!SvOK(right)) right = &PL_sv_no;
1053 }
a0d0e21e 1054 PUSHs(right);
57d3b86d 1055 PUTBACK;
ad64d0ec 1056 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
1057 SPAGAIN;
1058
1059 if (!sv_isobject(TOPs)) {
924508f0
GS
1060 SP--;
1061 PUSHMARK(SP);
a0d0e21e
LW
1062 PUSHs(sv);
1063 PUSHs(left);
6e449a3a 1064 mPUSHu(O_RDONLY);
a0d0e21e 1065 PUSHs(right);
a0d0e21e 1066 PUTBACK;
ad64d0ec 1067 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
1068 SPAGAIN;
1069 }
1070
6b05c17a 1071 if (sv_isobject(TOPs)) {
ad64d0ec
NC
1072 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1073 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
6b05c17a 1074 }
a0d0e21e
LW
1075 LEAVE;
1076 RETURN;
1077}
1078
a0d0e21e
LW
1079PP(pp_sselect)
1080{
a0d0e21e 1081#ifdef HAS_SELECT
97aff369 1082 dVAR; dSP; dTARGET;
eb578fdb
KW
1083 I32 i;
1084 I32 j;
1085 char *s;
1086 SV *sv;
65202027 1087 NV value;
a0d0e21e
LW
1088 I32 maxlen = 0;
1089 I32 nfound;
1090 struct timeval timebuf;
1091 struct timeval *tbuf = &timebuf;
1092 I32 growsize;
1093 char *fd_sets[4];
1094#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 I32 masksize;
1096 I32 offset;
1097 I32 k;
1098
1099# if BYTEORDER & 0xf0000
1100# define ORDERBYTE (0x88888888 - BYTEORDER)
1101# else
1102# define ORDERBYTE (0x4444 - BYTEORDER)
1103# endif
1104
1105#endif
1106
1107 SP -= 4;
1108 for (i = 1; i <= 3; i++) {
c4420975 1109 SV * const sv = SP[i];
9d6d5a79 1110 SvGETMAGIC(sv);
15547071
GA
1111 if (!SvOK(sv))
1112 continue;
ba3062ae
FC
1113 if (SvREADONLY(sv)) {
1114 if (!(SvPOK(sv) && SvCUR(sv) == 0))
cb077ed2 1115 Perl_croak_no_modify();
ba3062ae
FC
1116 }
1117 else if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0);
4ef2275c 1118 if (!SvPOK(sv)) {
9d6d5a79
FC
1119 if (!SvPOKp(sv))
1120 Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
1121 "Non-string passed as bitmask");
1122 SvPV_force_nomg_nolen(sv); /* force string conversion */
4ef2275c 1123 }
729c079f 1124 j = SvCUR(sv);
a0d0e21e
LW
1125 if (maxlen < j)
1126 maxlen = j;
1127 }
1128
5ff3f7a4 1129/* little endians can use vecs directly */
e366b469 1130#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1131# ifdef NFDBITS
a0d0e21e 1132
5ff3f7a4
GS
1133# ifndef NBBY
1134# define NBBY 8
1135# endif
a0d0e21e
LW
1136
1137 masksize = NFDBITS / NBBY;
5ff3f7a4 1138# else
a0d0e21e 1139 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1140# endif
a0d0e21e
LW
1141 Zero(&fd_sets[0], 4, char*);
1142#endif
1143
ad517f75
MHM
1144# if SELECT_MIN_BITS == 1
1145 growsize = sizeof(fd_set);
1146# else
1147# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1148# undef SELECT_MIN_BITS
1149# define SELECT_MIN_BITS __FD_SETSIZE
1150# endif
e366b469
PG
1151 /* If SELECT_MIN_BITS is greater than one we most probably will want
1152 * to align the sizes with SELECT_MIN_BITS/8 because for example
1153 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1154 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1155 * on (sets/tests/clears bits) is 32 bits. */
1156 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG
1157# endif
1158
a0d0e21e 1159 sv = SP[4];
90eaaf02 1160 SvGETMAGIC(sv);
a0d0e21e 1161 if (SvOK(sv)) {
90eaaf02 1162 value = SvNV_nomg(sv);
a0d0e21e
LW
1163 if (value < 0.0)
1164 value = 0.0;
1165 timebuf.tv_sec = (long)value;
65202027 1166 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW
1167 timebuf.tv_usec = (long)(value * 1000000.0);
1168 }
1169 else
4608196e 1170 tbuf = NULL;
a0d0e21e
LW
1171
1172 for (i = 1; i <= 3; i++) {
1173 sv = SP[i];
15547071 1174 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW
1175 fd_sets[i] = 0;
1176 continue;
1177 }
4ef2275c 1178 assert(SvPOK(sv));
a0d0e21e
LW
1179 j = SvLEN(sv);
1180 if (j < growsize) {
1181 Sv_Grow(sv, growsize);
a0d0e21e 1182 }
c07a80fd
PP
1183 j = SvCUR(sv);
1184 s = SvPVX(sv) + j;
1185 while (++j <= growsize) {
1186 *s++ = '\0';
1187 }
1188
a0d0e21e
LW
1189#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1190 s = SvPVX(sv);
a02a5408 1191 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW
1192 for (offset = 0; offset < growsize; offset += masksize) {
1193 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1194 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1195 }
1196#else
1197 fd_sets[i] = SvPVX(sv);
1198#endif
1199 }
1200
dc4c69d9
JH
1201#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1202 /* Can't make just the (void*) conditional because that would be
1203 * cpp #if within cpp macro, and not all compilers like that. */
1204 nfound = PerlSock_select(
1205 maxlen * 8,
1206 (Select_fd_set_t) fd_sets[1],
1207 (Select_fd_set_t) fd_sets[2],
1208 (Select_fd_set_t) fd_sets[3],
1209 (void*) tbuf); /* Workaround for compiler bug. */
1210#else
6ad3d225 1211 nfound = PerlSock_select(
a0d0e21e
LW
1212 maxlen * 8,
1213 (Select_fd_set_t) fd_sets[1],
1214 (Select_fd_set_t) fd_sets[2],
1215 (Select_fd_set_t) fd_sets[3],
1216 tbuf);
dc4c69d9 1217#endif
a0d0e21e
LW
1218 for (i = 1; i <= 3; i++) {
1219 if (fd_sets[i]) {
1220 sv = SP[i];
1221#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1222 s = SvPVX(sv);
1223 for (offset = 0; offset < growsize; offset += masksize) {
1224 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1225 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1226 }
1227 Safefree(fd_sets[i]);
1228#endif
1229 SvSETMAGIC(sv);
1230 }
1231 }
1232
4189264e 1233 PUSHi(nfound);
a0d0e21e 1234 if (GIMME == G_ARRAY && tbuf) {
65202027
DS
1235 value = (NV)(timebuf.tv_sec) +
1236 (NV)(timebuf.tv_usec) / 1000000.0;
6e449a3a 1237 mPUSHn(value);
a0d0e21e
LW
1238 }
1239 RETURN;
1240#else
cea2e8a9 1241 DIE(aTHX_ "select not implemented");
a0d0e21e
LW
1242#endif
1243}
1244
8226a3d7
NC
1245/*
1246=for apidoc setdefout
1247
1248Sets PL_defoutgv, the default file handle for output, to the passed in
72d33970 1249typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference
8226a3d7
NC
1250count of the passed in typeglob is increased by one, and the reference count
1251of the typeglob that PL_defoutgv points to is decreased by one.
1252
1253=cut
1254*/
1255
4633a7c4 1256void
864dbfa3 1257Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1258{
97aff369 1259 dVAR;
9a9bb270
FC
1260 PERL_ARGS_ASSERT_SETDEFOUT;
1261 SvREFCNT_inc_simple_void_NN(gv);
ef8d46e8 1262 SvREFCNT_dec(PL_defoutgv);
3280af22 1263 PL_defoutgv = gv;
4633a7c4
LW
1264}
1265
a0d0e21e
LW
1266PP(pp_select)
1267{
97aff369 1268 dVAR; dSP; dTARGET;
4633a7c4 1269 HV *hv;
159b6efe 1270 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
099be4f1 1271 GV * egv = GvEGVx(PL_defoutgv);
0df2568b 1272 GV * const *gvp;
4633a7c4 1273
4633a7c4 1274 if (!egv)
3280af22 1275 egv = PL_defoutgv;
099be4f1 1276 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
0df2568b 1277 gvp = hv && HvENAME(hv)
204263bc
FC
1278 ? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE)
1279 : NULL;
0df2568b 1280 if (gvp && *gvp == egv) {
bd61b366 1281 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
f86702cc 1282 XPUSHTARG;
0df2568b
FC
1283 }
1284 else {
ad64d0ec 1285 mXPUSHs(newRV(MUTABLE_SV(egv)));
4633a7c4
LW
1286 }
1287
1288 if (newdefout) {
ded8aa31
GS
1289 if (!GvIO(newdefout))
1290 gv_IOadd(newdefout);
4633a7c4
LW
1291 setdefout(newdefout);
1292 }
1293
a0d0e21e
LW
1294 RETURN;
1295}
1296
1297PP(pp_getc)
1298{
27da23d5 1299 dVAR; dSP; dTARGET;
30901a8a
FC
1300 GV * const gv =
1301 MAXARG==0 || (!TOPs && !POPs) ? PL_stdingv : MUTABLE_GV(POPs);
9c9f25b8 1302 IO *const io = GvIO(gv);
2ae324a7 1303
ac3697cd
NC
1304 if (MAXARG == 0)
1305 EXTEND(SP, 1);
1306
9c9f25b8 1307 if (io) {
a5e1d062 1308 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1309 if (mg) {
0240605e 1310 const U32 gimme = GIMME_V;
3e0cb5de 1311 Perl_tied_method(aTHX_ SV_CONST(GETC), SP, MUTABLE_SV(io), mg, gimme, 0);
0240605e
NC
1312 if (gimme == G_SCALAR) {
1313 SPAGAIN;
a79db61d 1314 SvSetMagicSV_nosteal(TARG, TOPs);
0240605e
NC
1315 }
1316 return NORMAL;
a79db61d 1317 }
2ae324a7 1318 }
90133b69 1319 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
51087808 1320 if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
831e4cc3 1321 report_evil_fh(gv);
b5fe5ca2 1322 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1323 RETPUSHUNDEF;
90133b69 1324 }
bbce6d69 1325 TAINT;
76f68e9b 1326 sv_setpvs(TARG, " ");
9bc64814 1327 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS
1328 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1329 /* Find out how many bytes the char needs */
aa07b2f6 1330 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS
1331 if (len > 1) {
1332 SvGROW(TARG,len+1);
1333 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1334 SvCUR_set(TARG,1+len);
1335 }
1336 SvUTF8_on(TARG);
1337 }
88c34251 1338 else SvUTF8_off(TARG);
a0d0e21e
LW
1339 PUSHTARG;
1340 RETURN;
1341}
1342
76e3520e 1343STATIC OP *
cea2e8a9 1344S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1345{
27da23d5 1346 dVAR;
eb578fdb 1347 PERL_CONTEXT *cx;
f54cb97a 1348 const I32 gimme = GIMME_V;
a0d0e21e 1349
7918f24d
NC
1350 PERL_ARGS_ASSERT_DOFORM;
1351
535e48ea 1352 if (CvCLONE(cv))
7b190374
NC
1353 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1354
a0d0e21e
LW
1355 ENTER;
1356 SAVETMPS;
1357
146174a9 1358 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
10067d9a 1359 PUSHFORMAT(cx, retop);
f32c7e86
FC
1360 if (CvDEPTH(cv) >= 2) {
1361 PERL_STACK_OVERFLOW_CHECK();
1362 pad_push(CvPADLIST(cv), CvDEPTH(cv));
1363 }
fd617465 1364 SAVECOMPPAD();
f32c7e86 1365 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
a0d0e21e 1366
4633a7c4 1367 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW
1368 return CvSTART(cv);
1369}
1370
1371PP(pp_enterwrite)
1372{
97aff369 1373 dVAR;
39644a26 1374 dSP;
eb578fdb
KW
1375 GV *gv;
1376 IO *io;
a0d0e21e 1377 GV *fgv;
07822e36
JH
1378 CV *cv = NULL;
1379 SV *tmpsv = NULL;
a0d0e21e 1380
2addaaf3 1381 if (MAXARG == 0) {
2addaaf3 1382 EXTEND(SP, 1);
49225470 1383 gv = PL_defoutgv;
2addaaf3 1384 }
a0d0e21e 1385 else {
159b6efe 1386 gv = MUTABLE_GV(POPs);
a0d0e21e 1387 if (!gv)
3280af22 1388 gv = PL_defoutgv;
a0d0e21e 1389 }
a0d0e21e
LW
1390 io = GvIO(gv);
1391 if (!io) {
1392 RETPUSHNO;
1393 }
1394 if (IoFMT_GV(io))
1395 fgv = IoFMT_GV(io);
1396 else
1397 fgv = gv;
1398
2d1ebc9b 1399 assert(fgv);
a79db61d 1400
a0d0e21e 1401 cv = GvFORM(fgv);
a0d0e21e 1402 if (!cv) {
10edeb5d 1403 tmpsv = sv_newmortal();
f4a7049d 1404 gv_efullname4(tmpsv, fgv, NULL, FALSE);
2d1ebc9b 1405 DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv));
a0d0e21e 1406 }
44a8e56a 1407 IoFLAGS(io) &= ~IOf_DIDTOP;
8e4ecf23 1408 RETURNOP(doform(cv,gv,PL_op->op_next));
a0d0e21e
LW
1409}
1410
1411PP(pp_leavewrite)
1412{
27da23d5 1413 dVAR; dSP;
f9c764c5 1414 GV * const gv = cxstack[cxstack_ix].blk_format.gv;
eb578fdb 1415 IO * const io = GvIOp(gv);
8b8cacda 1416 PerlIO *ofp;
760ac839 1417 PerlIO *fp;
8772537c
AL
1418 SV **newsp;
1419 I32 gimme;
eb578fdb 1420 PERL_CONTEXT *cx;
8f89e5a9 1421 OP *retop;
a0d0e21e 1422
8b8cacda 1423 if (!io || !(ofp = IoOFP(io)))
1424 goto forget_top;
1425
760ac839 1426 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1427 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
8b8cacda 1428
3280af22
NIS
1429 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1430 PL_formtarget != PL_toptarget)
a0d0e21e 1431 {
4633a7c4
LW
1432 GV *fgv;
1433 CV *cv;
a0d0e21e
LW
1434 if (!IoTOP_GV(io)) {
1435 GV *topgv;
a0d0e21e
LW
1436
1437 if (!IoTOP_NAME(io)) {
1b6737cc 1438 SV *topname;
a0d0e21e
LW
1439 if (!IoFMT_NAME(io))
1440 IoFMT_NAME(io) = savepv(GvNAME(gv));
d0c0e7dd
FC
1441 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%"HEKf"_TOP",
1442 HEKfARG(GvNAME_HEK(gv))));
f776e3cd 1443 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
748a9306 1444 if ((topgv && GvFORM(topgv)) ||
fafc274c 1445 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
2e0de35c 1446 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1447 else
89529cee 1448 IoTOP_NAME(io) = savepvs("top");
a0d0e21e 1449 }
f776e3cd 1450 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
a0d0e21e 1451 if (!topgv || !GvFORM(topgv)) {
b929a54b 1452 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW
1453 goto forget_top;
1454 }
1455 IoTOP_GV(io) = topgv;
1456 }
748a9306
LW
1457 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1458 I32 lines = IoLINES_LEFT(io);
504618e9 1459 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD
1460 if (lines <= 0) /* Yow, header didn't even fit!!! */
1461 goto forget_top;
748a9306
LW
1462 while (lines-- > 0) {
1463 s = strchr(s, '\n');
1464 if (!s)
1465 break;
1466 s++;
1467 }
1468 if (s) {
f54cb97a 1469 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1470 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS
1471 do_print(PL_formtarget, ofp);
1472 SvCUR_set(PL_formtarget, save);
3280af22
NIS
1473 sv_chop(PL_formtarget, s);
1474 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW
1475 }
1476 }
a0d0e21e 1477 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
f6dfc736 1478 do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp);
a0d0e21e
LW
1479 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1480 IoPAGE(io)++;
3280af22 1481 PL_formtarget = PL_toptarget;
748a9306 1482 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4 1483 fgv = IoTOP_GV(io);
636013b3 1484 assert(fgv); /* IoTOP_GV(io) should have been set above */
4633a7c4 1485 cv = GvFORM(fgv);
1df70142
AL
1486 if (!cv) {
1487 SV * const sv = sv_newmortal();
bd61b366 1488 gv_efullname4(sv, fgv, NULL, FALSE);
44b7e78a 1489 DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv));
4633a7c4 1490 }
43cd5cb7 1491 return doform(cv, gv, PL_op);
a0d0e21e
LW
1492 }
1493
1494 forget_top:
3280af22 1495 POPBLOCK(cx,PL_curpm);
8f89e5a9 1496 retop = cx->blk_sub.retop;
25375124 1497 POPFORMAT(cx);
43cd5cb7 1498 SP = newsp; /* ignore retval of formline */
a0d0e21e
LW
1499 LEAVE;
1500
c782dc1d
FC
1501 if (!io || !(fp = IoOFP(io))) {
1502 if (io && IoIFP(io))
7716c5c5 1503 report_wrongway_fh(gv, '<');
c521cf7c 1504 else
7716c5c5 1505 report_evil_fh(gv);
3280af22 1506 PUSHs(&PL_sv_no);
a0d0e21e
LW
1507 }
1508 else {
3280af22 1509 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
a2a5de95 1510 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1511 }
d75029d0 1512 if (!do_print(PL_formtarget, fp))
3280af22 1513 PUSHs(&PL_sv_no);
a0d0e21e 1514 else {
3280af22
NIS
1515 FmLINES(PL_formtarget) = 0;
1516 SvCUR_set(PL_formtarget, 0);
1517 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1518 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1519 (void)PerlIO_flush(fp);
3280af22 1520 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1521 }
1522 }
3280af22 1523 PL_formtarget = PL_bodytarget;
29033a8a 1524 PERL_UNUSED_VAR(gimme);
8e4ecf23 1525 RETURNOP(retop);
a0d0e21e
LW
1526}
1527
1528PP(pp_prtf)
1529{
27da23d5 1530 dVAR; dSP; dMARK; dORIGMARK;
760ac839 1531 PerlIO *fp;
a0d0e21e 1532
159b6efe
NC
1533 GV * const gv
1534 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
9c9f25b8 1535 IO *const io = GvIO(gv);
46fc3d4c 1536
87385d72
FC
1537 /* Treat empty list as "" */
1538 if (MARK == SP) XPUSHs(&PL_sv_no);
1539
9c9f25b8 1540 if (io) {
a5e1d062 1541 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL
1542 if (mg) {
1543 if (MARK == ORIGMARK) {
1544 MEXTEND(SP, 1);
1545 ++MARK;
1546 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1547 ++SP;
1548 }
3e0cb5de 1549 return Perl_tied_method(aTHX_ SV_CONST(PRINTF), mark - 1, MUTABLE_SV(io),
d682515d
NC
1550 mg,
1551 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1552 sp - mark);
a79db61d 1553 }
46fc3d4c
PP
1554 }
1555
9c9f25b8 1556 if (!io) {
51087808 1557 report_evil_fh(gv);
93189314 1558 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW
1559 goto just_say_no;
1560 }
1561 else if (!(fp = IoOFP(io))) {
7716c5c5
NC
1562 if (IoIFP(io))
1563 report_wrongway_fh(gv, '<');
1564 else if (ckWARN(WARN_CLOSED))
1565 report_evil_fh(gv);
93189314 1566 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW
1567 goto just_say_no;
1568 }
1569 else {
c7bd8b84 1570 SV *sv = sv_newmortal();
a0d0e21e
LW
1571 do_sprintf(sv, SP - MARK, MARK + 1);
1572 if (!do_print(sv, fp))
1573 goto just_say_no;
1574
1575 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1576 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW
1577 goto just_say_no;
1578 }
a0d0e21e 1579 SP = ORIGMARK;
3280af22 1580 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1581 RETURN;
1582
1583 just_say_no:
a0d0e21e 1584 SP = ORIGMARK;
3280af22 1585 PUSHs(&PL_sv_undef);
a0d0e21e
LW
1586 RETURN;
1587}
1588
c07a80fd
PP
1589PP(pp_sysopen)
1590{
97aff369 1591 dVAR;
39644a26 1592 dSP;
de5e49e1 1593 const int perm = (MAXARG > 3 && (TOPs || POPs)) ? POPi : 0666;
1df70142 1594 const int mode = POPi;
1b6737cc 1595 SV * const sv = POPs;
159b6efe 1596 GV * const gv = MUTABLE_GV(POPs);
1b6737cc 1597 STRLEN len;
c07a80fd 1598
4592e6ca 1599 /* Need TIEHANDLE method ? */
1b6737cc 1600 const char * const tmps = SvPV_const(sv, len);
e62f0680 1601 /* FIXME? do_open should do const */
4608196e 1602 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
c07a80fd 1603 IoLINES(GvIOp(gv)) = 0;
3280af22 1604 PUSHs(&PL_sv_yes);
c07a80fd
PP
1605 }
1606 else {
3280af22 1607 PUSHs(&PL_sv_undef);
c07a80fd
PP
1608 }
1609 RETURN;
1610}
1611
a0d0e21e
LW
1612PP(pp_sysread)
1613{
27da23d5 1614 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
0b423688 1615 SSize_t offset;
a0d0e21e
LW
1616 IO *io;
1617 char *buffer;
0b423688 1618 STRLEN orig_size;
5b54f415 1619 SSize_t length;
eb5c063a 1620 SSize_t count;
748a9306 1621 SV *bufsv;
a0d0e21e 1622 STRLEN blen;
eb5c063a 1623 int fp_utf8;
1dd30107
NC
1624 int buffer_utf8;
1625 SV *read_target;
eb5c063a
NIS
1626 Size_t got = 0;
1627 Size_t wanted;
1d636c13 1628 bool charstart = FALSE;
87330c3c
JH
1629 STRLEN charskip = 0;
1630 STRLEN skip = 0;
a0d0e21e 1631
159b6efe 1632 GV * const gv = MUTABLE_GV(*++MARK);
5b468f54 1633 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1634 && gv && (io = GvIO(gv)) )
137443ea 1635 {
a5e1d062 1636 const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1b6737cc 1637 if (mg) {
3e0cb5de 1638 return Perl_tied_method(aTHX_ SV_CONST(READ), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
1639 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1640 sp - mark);
1b6737cc 1641 }
2ae324a7
PP
1642 }
1643
a0d0e21e
LW
1644 if (!gv)
1645 goto say_undef;
748a9306 1646 bufsv = *++MARK;
ff68c719 1647 if (! SvOK(bufsv))
76f68e9b 1648 sv_setpvs(bufsv, "");
a0d0e21e 1649 length = SvIVx(*++MARK);
4bac9ae4
CS
1650 if (length < 0)
1651 DIE(aTHX_ "Negative length");
748a9306 1652 SETERRNO(0,0);
a0d0e21e
LW
1653 if (MARK < SP)
1654 offset = SvIVx(*++MARK);
1655 else
1656 offset = 0;
1657 io = GvIO(gv);
b5fe5ca2 1658 if (!io || !IoIFP(io)) {
51087808 1659 report_evil_fh(gv);
b5fe5ca2 1660 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1661 goto say_undef;
b5fe5ca2 1662 }
0064a8a9 1663 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1664 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1665 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1666 SvUTF8_on(bufsv);
9b9d7ce8 1667 buffer_utf8 = 0;
7d59b7e4
NIS
1668 }
1669 else {
1670 buffer = SvPV_force(bufsv, blen);
1dd30107 1671 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4 1672 }
4bac9ae4 1673 if (DO_UTF8(bufsv)) {
3f914778 1674 blen = sv_len_utf8_nomg(bufsv);
4bac9ae4 1675 }
7d59b7e4 1676
d0965105
JH
1677 charstart = TRUE;
1678 charskip = 0;
87330c3c 1679 skip = 0;
4bac9ae4 1680 wanted = length;
d0965105 1681
a0d0e21e 1682#ifdef HAS_SOCKET
533c011a 1683 if (PL_op->op_type == OP_RECV) {
0b423688 1684 Sock_size_t bufsize;
46fc3d4c 1685 char namebuf[MAXPATHLEN];
b5afd346 1686#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
490ab354
JH
1687 bufsize = sizeof (struct sockaddr_in);
1688#else
46fc3d4c 1689 bufsize = sizeof namebuf;
490ab354 1690#endif
abf95952
IZ
1691#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1692 if (bufsize >= 256)
1693 bufsize = 255;
1694#endif
eb160463 1695 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1696 /* 'offset' means 'flags' here */
eb5c063a 1697 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
10edeb5d 1698 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1699 if (count < 0)
a0d0e21e 1700 RETPUSHUNDEF;
8eb023a9
DM
1701 /* MSG_TRUNC can give oversized count; quietly lose it */
1702 if (count > length)
1703 count = length;
eb5c063a 1704 SvCUR_set(bufsv, count);
748a9306
LW
1705 *SvEND(bufsv) = '\0';
1706 (void)SvPOK_only(bufsv);
eb5c063a
NIS
1707 if (fp_utf8)
1708 SvUTF8_on(bufsv);
748a9306 1709 SvSETMAGIC(bufsv);
aac0dd9a 1710 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1711 if (!(IoFLAGS(io) & IOf_UNTAINT))
1712 SvTAINTED_on(bufsv);
a0d0e21e 1713 SP = ORIGMARK;
46fc3d4c 1714 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW
1715 PUSHs(TARG);
1716 RETURN;
1717 }
a0d0e21e 1718#endif
bbce6d69 1719 if (offset < 0) {
0b423688 1720 if (-offset > (SSize_t)blen)
cea2e8a9 1721 DIE(aTHX_ "Offset outside string");
bbce6d69
PP
1722 offset += blen;
1723 }
eb5c063a
NIS
1724 if (DO_UTF8(bufsv)) {
1725 /* convert offset-as-chars to offset-as-bytes */
d5f981bb 1726 if (offset >= (SSize_t)blen)
6960c29a
CH
1727 offset += SvCUR(bufsv) - blen;
1728 else
1729 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS
1730 }
1731 more_bytes:
0b423688 1732 orig_size = SvCUR(bufsv);
1dd30107
NC
1733 /* Allocating length + offset + 1 isn't perfect in the case of reading
1734 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1735 unduly.
1736 (should be 2 * length + offset + 1, or possibly something longer if
1737 PL_encoding is true) */
eb160463 1738 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
0b423688
TC
1739 if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */
1740 Zero(buffer+orig_size, offset-orig_size, char);
cd52b7b2 1741 }
eb5c063a 1742 buffer = buffer + offset;
1dd30107
NC
1743 if (!buffer_utf8) {
1744 read_target = bufsv;
1745 } else {
1746 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1747 concatenate it to the current buffer. */
1748
1749 /* Truncate the existing buffer to the start of where we will be
1750 reading to: */
1751 SvCUR_set(bufsv, offset);
1752
1753 read_target = sv_newmortal();
862a34c6 1754 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1755 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1756 }
eb5c063a 1757
533c011a 1758 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1759#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1760 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS
1761 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1762 buffer, length, 0);
a7092146
GS
1763 }
1764 else
1765#endif
1766 {
eb5c063a
NIS
1767 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1768 buffer, length);
a7092146 1769 }
a0d0e21e
LW
1770 }
1771 else
3b02c43c 1772 {
eb5c063a
NIS
1773 count = PerlIO_read(IoIFP(io), buffer, length);
1774 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1775 if (count == 0 && PerlIO_error(IoIFP(io)))
1776 count = -1;
3b02c43c 1777 }
eb5c063a 1778 if (count < 0) {
7716c5c5 1779 if (IoTYPE(io) == IoTYPE_WRONLY)
a5390457 1780 report_wrongway_fh(gv, '>');
a0d0e21e 1781 goto say_undef;
af8c498a 1782 }
aa07b2f6 1783 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC
1784 *SvEND(read_target) = '\0';
1785 (void)SvPOK_only(read_target);
0064a8a9 1786 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1787 /* Look at utf8 we got back and count the characters */
1df70142 1788 const char *bend = buffer + count;
eb5c063a 1789 while (buffer < bend) {
d0965105
JH
1790 if (charstart) {
1791 skip = UTF8SKIP(buffer);
1792 charskip = 0;
1793 }
1794 if (buffer - charskip + skip > bend) {
eb5c063a
NIS
1795 /* partial character - try for rest of it */
1796 length = skip - (bend-buffer);
aa07b2f6 1797 offset = bend - SvPVX_const(bufsv);
d0965105
JH
1798 charstart = FALSE;
1799 charskip += count;
eb5c063a
NIS
1800 goto more_bytes;
1801 }
1802 else {
1803 got++;
1804 buffer += skip;
d0965105
JH
1805 charstart = TRUE;
1806 charskip = 0;
eb5c063a
NIS
1807 }
1808 }
1809 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1810 provided amount read (count) was what was requested (length)
1811 */
1812 if (got < wanted && count == length) {
d0965105 1813 length = wanted - got;
aa07b2f6 1814 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS
1815 goto more_bytes;
1816 }
1817 /* return value is character count */
1818 count = got;
1819 SvUTF8_on(bufsv);
1820 }
1dd30107
NC
1821 else if (buffer_utf8) {
1822 /* Let svcatsv upgrade the bytes we read in to utf8.
1823 The buffer is a mortal so will be freed soon. */
1824 sv_catsv_nomg(bufsv, read_target);
1825 }
748a9306 1826 SvSETMAGIC(bufsv);
aac0dd9a 1827 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1828 if (!(IoFLAGS(io) & IOf_UNTAINT))
1829 SvTAINTED_on(bufsv);
a0d0e21e 1830 SP = ORIGMARK;
eb5c063a 1831 PUSHi(count);
a0d0e21e
LW
1832 RETURN;
1833
1834 say_undef:
1835 SP = ORIGMARK;
1836 RETPUSHUNDEF;
1837}
1838
60504e18 1839PP(pp_syswrite)
a0d0e21e 1840{
27da23d5 1841 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
748a9306 1842 SV *bufsv;
83003860 1843 const char *buffer;
8c99d73e 1844 SSize_t retval;
a0d0e21e 1845 STRLEN blen;
c9cb0f41 1846 STRLEN orig_blen_bytes;
64a1bc8e 1847 const int op_type = PL_op->op_type;
c9cb0f41
NC
1848 bool doing_utf8;
1849 U8 *tmpbuf = NULL;
159b6efe 1850 GV *const gv = MUTABLE_GV(*++MARK);
91472ad4
NC
1851 IO *const io = GvIO(gv);
1852
1853 if (op_type == OP_SYSWRITE && io) {
a5e1d062 1854 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1855 if (mg) {
a79db61d 1856 if (MARK == SP - 1) {
c8834ab7
TC
1857 SV *sv = *SP;
1858 mXPUSHi(sv_len(sv));
a79db61d
AL
1859 PUTBACK;
1860 }
1861
3e0cb5de 1862 return Perl_tied_method(aTHX_ SV_CONST(WRITE), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
1863 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1864 sp - mark);
64a1bc8e 1865 }
1d603a67 1866 }
a0d0e21e
LW
1867 if (!gv)
1868 goto say_undef;
64a1bc8e 1869
748a9306 1870 bufsv = *++MARK;
64a1bc8e 1871
748a9306 1872 SETERRNO(0,0);
cf167416 1873 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
8c99d73e 1874 retval = -1;
51087808
NC
1875 if (io && IoIFP(io))
1876 report_wrongway_fh(gv, '<');
1877 else
1878 report_evil_fh(gv);
b5fe5ca2 1879 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS
1880 goto say_undef;
1881 }
1882
c9cb0f41
NC
1883 /* Do this first to trigger any overloading. */
1884 buffer = SvPV_const(bufsv, blen);
1885 orig_blen_bytes = blen;
1886 doing_utf8 = DO_UTF8(bufsv);
1887
7d59b7e4 1888 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7 1889 if (!SvUTF8(bufsv)) {
c9cb0f41
NC
1890 /* We don't modify the original scalar. */
1891 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1892 buffer = (char *) tmpbuf;
1893 doing_utf8 = TRUE;
1894 }
a0d0e21e 1895 }
c9cb0f41
NC
1896 else if (doing_utf8) {
1897 STRLEN tmplen = blen;
a79db61d 1898 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
c9cb0f41
NC
1899 if (!doing_utf8) {
1900 tmpbuf = result;
1901 buffer = (char *) tmpbuf;
1902 blen = tmplen;
1903 }
1904 else {
1905 assert((char *)result == buffer);
1906 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1907 }
7d59b7e4
NIS
1908 }
1909
e2712234 1910#ifdef HAS_SOCKET
7627e6d0 1911 if (op_type == OP_SEND) {
e2712234
NC
1912 const int flags = SvIVx(*++MARK);
1913 if (SP > MARK) {
1914 STRLEN mlen;
1915 char * const sockbuf = SvPVx(*++MARK, mlen);
1916 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1917 flags, (struct sockaddr *)sockbuf, mlen);
1918 }
1919 else {
1920 retval
1921 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1922 }
7627e6d0
NC
1923 }
1924 else
e2712234 1925#endif
7627e6d0 1926 {
c9cb0f41
NC
1927 Size_t length = 0; /* This length is in characters. */
1928 STRLEN blen_chars;
7d59b7e4 1929 IV offset;
c9cb0f41
NC
1930
1931 if (doing_utf8) {
1932 if (tmpbuf) {
1933 /* The SV is bytes, and we've had to upgrade it. */
1934 blen_chars = orig_blen_bytes;
1935 } else {
1936 /* The SV really is UTF-8. */
3f914778
FC
1937 /* Don't call sv_len_utf8 on a magical or overloaded
1938 scalar, as we might get back a different result. */
1939 blen_chars = sv_or_pv_len_utf8(bufsv, buffer, blen);
c9cb0f41
NC
1940 }
1941 } else {
1942 blen_chars = blen;
1943 }
1944
1945 if (MARK >= SP) {
1946 length = blen_chars;
1947 } else {
1948#if Size_t_size > IVSIZE
1949 length = (Size_t)SvNVx(*++MARK);
1950#else
1951 length = (Size_t)SvIVx(*++MARK);
1952#endif
4b0c4b6f
NC
1953 if ((SSize_t)length < 0) {
1954 Safefree(tmpbuf);
c9cb0f41 1955 DIE(aTHX_ "Negative length");
4b0c4b6f 1956 }
7d59b7e4 1957 }
c9cb0f41 1958
bbce6d69 1959 if (MARK < SP) {
a0d0e21e 1960 offset = SvIVx(*++MARK);
bbce6d69 1961 if (offset < 0) {
4b0c4b6f
NC
1962 if (-offset > (IV)blen_chars) {
1963 Safefree(tmpbuf);
cea2e8a9 1964 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1965 }
c9cb0f41 1966 offset += blen_chars;
3c946528 1967 } else if (offset > (IV)blen_chars) {
4b0c4b6f 1968 Safefree(tmpbuf);
cea2e8a9 1969 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1970 }
bbce6d69 1971 } else
a0d0e21e 1972 offset = 0;
c9cb0f41
NC
1973 if (length > blen_chars - offset)
1974 length = blen_chars - offset;
1975 if (doing_utf8) {
1976 /* Here we convert length from characters to bytes. */
1977 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1978 /* Either we had to convert the SV, or the SV is magical, or
1979 the SV has overloading, in which case we can't or mustn't
1980 or mustn't call it again. */
1981
1982 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1983 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1984 } else {
1985 /* It's a real UTF-8 SV, and it's not going to change under
1986 us. Take advantage of any cache. */
1987 I32 start = offset;
1988 I32 len_I32 = length;
1989
1990 /* Convert the start and end character positions to bytes.
1991 Remember that the second argument to sv_pos_u2b is relative
1992 to the first. */
1993 sv_pos_u2b(bufsv, &start, &len_I32);
1994
1995 buffer += start;
1996 length = len_I32;
1997 }
7d59b7e4
NIS
1998 }
1999 else {
2000 buffer = buffer+offset;
2001 }
a7092146 2002#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 2003 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 2004 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 2005 buffer, length, 0);
a7092146
GS
2006 }
2007 else
2008#endif
2009 {
94e4c244 2010 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 2011 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 2012 buffer, length);
a7092146 2013 }
a0d0e21e 2014 }
c9cb0f41 2015
8c99d73e 2016 if (retval < 0)
a0d0e21e
LW
2017 goto say_undef;
2018 SP = ORIGMARK;
c9cb0f41 2019 if (doing_utf8)
f36eea10 2020 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
4b0c4b6f 2021
a79db61d 2022 Safefree(tmpbuf);
8c99d73e
GS
2023#if Size_t_size > IVSIZE
2024 PUSHn(retval);
2025#else
2026 PUSHi(retval);
2027#endif
a0d0e21e
LW
2028 RETURN;
2029
2030 say_undef:
a79db61d 2031 Safefree(tmpbuf);
a0d0e21e
LW
2032 SP = ORIGMARK;
2033 RETPUSHUNDEF;
2034}
2035
a0d0e21e
LW
2036PP(pp_eof)
2037{
27da23d5 2038 dVAR; dSP;
a0d0e21e 2039 GV *gv;
32e65323 2040 IO *io;
a5e1d062 2041 const MAGIC *mg;
bc0c81ca
NC
2042 /*
2043 * in Perl 5.12 and later, the additional parameter is a bitmask:
2044 * 0 = eof
2045 * 1 = eof(FH)
2046 * 2 = eof() <- ARGV magic
2047 *
2048 * I'll rely on the compiler's trace flow analysis to decide whether to
2049 * actually assign this out here, or punt it into the only block where it is
2050 * used. Doing it out here is DRY on the condition logic.
2051 */
2052 unsigned int which;
a0d0e21e 2053
bc0c81ca 2054 if (MAXARG) {
32e65323 2055 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
bc0c81ca
NC
2056 which = 1;
2057 }
b5f55170
NC
2058 else {
2059 EXTEND(SP, 1);
2060
bc0c81ca 2061 if (PL_op->op_flags & OPf_SPECIAL) {
b5f55170 2062 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
bc0c81ca
NC
2063 which = 2;
2064 }
2065 else {
b5f55170 2066 gv = PL_last_in_gv; /* eof */
bc0c81ca
NC
2067 which = 0;
2068 }
b5f55170 2069 }
32e65323
CS
2070
2071 if (!gv)
2072 RETPUSHNO;
2073
2074 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
3e0cb5de 2075 return tied_method1(SV_CONST(EOF), SP, MUTABLE_SV(io), mg, newSVuv(which));
146174a9 2076 }
4592e6ca 2077
32e65323
CS
2078 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2079 if (io && !IoIFP(io)) {
2080 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2081 IoLINES(io) = 0;
2082 IoFLAGS(io) &= ~IOf_START;
2083 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2084 if (GvSV(gv))
2085 sv_setpvs(GvSV(gv), "-");
2086 else
2087 GvSV(gv) = newSVpvs("-");
2088 SvSETMAGIC(GvSV(gv));
2089 }
2090 else if (!nextargv(gv))
2091 RETPUSHYES;
6136c704 2092 }
4592e6ca
NIS
2093 }
2094
32e65323 2095 PUSHs(boolSV(do_eof(gv)));
a0d0e21e
LW
2096 RETURN;
2097}
2098
2099PP(pp_tell)
2100{
27da23d5 2101 dVAR; dSP; dTARGET;
301e8125 2102 GV *gv;
5b468f54 2103 IO *io;
a0d0e21e 2104
b64a1294 2105 if (MAXARG != 0 && (TOPs || POPs))
159b6efe 2106 PL_last_in_gv = MUTABLE_GV(POPs);
ac3697cd
NC
2107 else
2108 EXTEND(SP, 1);
c4420975 2109 gv = PL_last_in_gv;
4592e6ca 2110
9c9f25b8
NC
2111 io = GvIO(gv);
2112 if (io) {
a5e1d062 2113 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2114 if (mg) {
3e0cb5de 2115 return tied_method0(SV_CONST(TELL), SP, MUTABLE_SV(io), mg);
a79db61d 2116 }
4592e6ca 2117 }
f4817f32 2118 else if (!gv) {
f03173f2
RGS
2119 if (!errno)
2120 SETERRNO(EBADF,RMS_IFI);
2121 PUSHi(-1);
2122 RETURN;
2123 }
4592e6ca 2124
146174a9
CB
2125#if LSEEKSIZE > IVSIZE
2126 PUSHn( do_tell(gv) );
2127#else
a0d0e21e 2128 PUSHi( do_tell(gv) );
146174a9 2129#endif
a0d0e21e
LW
2130 RETURN;
2131}
2132
137443ea
PP
2133PP(pp_sysseek)
2134{
27da23d5 2135 dVAR; dSP;
1df70142 2136 const int whence = POPi;
146174a9 2137#if LSEEKSIZE > IVSIZE
7452cf6a 2138 const Off_t offset = (Off_t)SvNVx(POPs);
146174a9 2139#else
7452cf6a 2140 const Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2141#endif
a0d0e21e 2142
159b6efe 2143 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
9c9f25b8 2144 IO *const io = GvIO(gv);
4592e6ca 2145
9c9f25b8 2146 if (io) {
a5e1d062 2147 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2148 if (mg) {
cb50131a 2149#if LSEEKSIZE > IVSIZE
74f0b550 2150 SV *const offset_sv = newSVnv((NV) offset);
cb50131a 2151#else
74f0b550 2152 SV *const offset_sv = newSViv(offset);
cb50131a 2153#endif
bc0c81ca 2154
3e0cb5de 2155 return tied_method2(SV_CONST(SEEK), SP, MUTABLE_SV(io), mg, offset_sv,
d682515d 2156 newSViv(whence));
a79db61d 2157 }
4592e6ca
NIS
2158 }
2159
533c011a 2160 if (PL_op->op_type == OP_SEEK)
8903cb82
PP
2161 PUSHs(boolSV(do_seek(gv, offset, whence)));
2162 else {
0bcc34c2 2163 const Off_t sought = do_sysseek(gv, offset, whence);
b448e4fe 2164 if (sought < 0)
146174a9
CB
2165 PUSHs(&PL_sv_undef);
2166 else {
7452cf6a 2167 SV* const sv = sought ?
146174a9 2168#if LSEEKSIZE > IVSIZE
b448e4fe 2169 newSVnv((NV)sought)
146174a9 2170#else
b448e4fe 2171 newSViv(sought)
146174a9
CB
2172#endif
2173 : newSVpvn(zero_but_true, ZBTLEN);
6e449a3a 2174 mPUSHs(sv);
146174a9 2175 }
8903cb82 2176 }
a0d0e21e
LW
2177 RETURN;
2178}
2179
2180PP(pp_truncate)
2181{
97aff369 2182 dVAR;
39644a26 2183 dSP;
8c99d73e
GS
2184 /* There seems to be no consensus on the length type of truncate()
2185 * and ftruncate(), both off_t and size_t have supporters. In
2186 * general one would think that when using large files, off_t is
2187 * at least as wide as size_t, so using an off_t should be okay. */
2188 /* XXX Configure probe for the length type of *truncate() needed XXX */
0bcc34c2 2189 Off_t len;
a0d0e21e 2190
25342a55 2191#if Off_t_size > IVSIZE
0bcc34c2 2192 len = (Off_t)POPn;
8c99d73e 2193#else
0bcc34c2 2194 len = (Off_t)POPi;
8c99d73e
GS
2195#endif
2196 /* Checking for length < 0 is problematic as the type might or
301e8125 2197 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2198 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2199 SETERRNO(0,0);
d05c1ba0 2200 {
5e0adc2d 2201 SV * const sv = POPs;
d05c1ba0
JH
2202 int result = 1;
2203 GV *tmpgv;
090bf15b
SR
2204 IO *io;
2205
42409c40
FC
2206 if (PL_op->op_flags & OPf_SPECIAL
2207 ? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1)
2208 : !!(tmpgv = MAYBE_DEREF_GV(sv)) ) {
9c9f25b8
NC
2209 io = GvIO(tmpgv);
2210 if (!io)
090bf15b 2211 result = 0;
d05c1ba0 2212 else {
090bf15b 2213 PerlIO *fp;
090bf15b
SR
2214 do_ftruncate_io:
2215 TAINT_PROPER("truncate");
2216 if (!(fp = IoIFP(io))) {
2217 result = 0;
2218 }
2219 else {
2220 PerlIO_flush(fp);
cbdc8872 2221#ifdef HAS_TRUNCATE
090bf15b 2222 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2223#else
090bf15b 2224 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2225#endif
090bf15b
SR
2226 result = 0;
2227 }
d05c1ba0 2228 }
cbdc8872 2229 }
5e0adc2d 2230 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2231 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
090bf15b 2232 goto do_ftruncate_io;
5e0adc2d
FC
2233 }
2234 else {
2235 const char * const name = SvPV_nomg_const_nolen(sv);
d05c1ba0 2236 TAINT_PROPER("truncate");
cbdc8872 2237#ifdef HAS_TRUNCATE
d05c1ba0
JH
2238 if (truncate(name, len) < 0)
2239 result = 0;
cbdc8872 2240#else
d05c1ba0 2241 {
7452cf6a 2242 const int tmpfd = PerlLIO_open(name, O_RDWR);
d05c1ba0 2243
7452cf6a 2244 if (tmpfd < 0)
cbdc8872 2245 result = 0;
d05c1ba0
JH
2246 else {
2247 if (my_chsize(tmpfd, len) < 0)
2248 result = 0;
2249 PerlLIO_close(tmpfd);
2250 }
cbdc8872 2251 }
a0d0e21e 2252#endif
d05c1ba0 2253 }
a0d0e21e 2254
d05c1ba0
JH
2255 if (result)
2256 RETPUSHYES;
2257 if (!errno)
93189314 2258 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH
2259 RETPUSHUNDEF;
2260 }
a0d0e21e
LW
2261}
2262
a0d0e21e
LW
2263PP(pp_ioctl)
2264{
97aff369 2265 dVAR; dSP; dTARGET;
7452cf6a 2266 SV * const argsv = POPs;
1df70142 2267 const unsigned int func = POPu;
49225470 2268 int optype;
159b6efe 2269 GV * const gv = MUTABLE_GV(POPs);
8a6c0fcb 2270 IO * const io = GvIOn(gv);
a0d0e21e 2271 char *s;
324aa91a 2272 IV retval;
a0d0e21e 2273
8a6c0fcb 2274 if (!IoIFP(io)) {
51087808 2275 report_evil_fh(gv);
93189314 2276 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW
2277 RETPUSHUNDEF;
2278 }
2279
748a9306 2280 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2281 STRLEN len;
324aa91a 2282 STRLEN need;
748a9306 2283 s = SvPV_force(argsv, len);
324aa91a
HF
2284 need = IOCPARM_LEN(func);
2285 if (len < need) {
2286 s = Sv_Grow(argsv, need + 1);
2287 SvCUR_set(argsv, need);
a0d0e21e
LW
2288 }
2289
748a9306 2290 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW
2291 }
2292 else {
748a9306 2293 retval = SvIV(argsv);
c529f79d 2294 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW
2295 }
2296
49225470 2297 optype = PL_op->op_type;
ed4b2e6b 2298 TAINT_PROPER(PL_op_desc[optype]);
a0d0e21e
LW
2299
2300 if (optype == OP_IOCTL)
2301#ifdef HAS_IOCTL
76e3520e 2302 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2303#else
cea2e8a9 2304 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW
2305#endif
2306 else
c214f4ad
B
2307#ifndef HAS_FCNTL
2308 DIE(aTHX_ "fcntl is not implemented");
2309#else
55497cff 2310#if defined(OS2) && defined(__EMX__)
760ac839 2311 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2312#else
760ac839 2313 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2314#endif
6652bd42 2315#endif
a0d0e21e 2316
6652bd42 2317#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW
2318 if (SvPOK(argsv)) {
2319 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2320 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2321 OP_NAME(PL_op));
748a9306
LW
2322 s[SvCUR(argsv)] = 0; /* put our null back */
2323 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW
2324 }
2325
2326 if (retval == -1)
2327 RETPUSHUNDEF;
2328 if (retval != 0) {
2329 PUSHi(retval);
2330 }
2331 else {
8903cb82 2332 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2333 }
4808266b 2334#endif
c214f4ad 2335 RETURN;
a0d0e21e
LW
2336}
2337
2338PP(pp_flock)
2339{
9cad6237 2340#ifdef FLOCK
97aff369 2341 dVAR; dSP; dTARGET;
a0d0e21e 2342 I32 value;
7452cf6a 2343 const int argtype = POPi;
1f28cbca 2344 GV * const gv = MUTABLE_GV(POPs);
9c9f25b8
NC
2345 IO *const io = GvIO(gv);
2346 PerlIO *const fp = io ? IoIFP(io) : NULL;
16d20bd9 2347
0bcc34c2 2348 /* XXX Looks to me like io is always NULL at this point */
a0d0e21e 2349 if (fp) {
68dc0745 2350 (void)PerlIO_flush(fp);
76e3520e 2351 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2352 }
cb50131a 2353 else {
51087808 2354 report_evil_fh(gv);
a0d0e21e 2355 value = 0;
93189314 2356 SETERRNO(EBADF,RMS_IFI);
cb50131a 2357 }
a0d0e21e
LW
2358 PUSHi(value);
2359 RETURN;
2360#else
cea2e8a9 2361 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW
2362#endif
2363}
2364
2365/* Sockets. */
2366
7627e6d0
NC
2367#ifdef HAS_SOCKET
2368
a0d0e21e
LW
2369PP(pp_socket)
2370{
97aff369 2371 dVAR; dSP;
7452cf6a
AL
2372 const int protocol = POPi;
2373 const int type = POPi;
2374 const int domain = POPi;
159b6efe 2375 GV * const gv = MUTABLE_GV(POPs);
5805b585 2376 IO * const io = GvIOn(gv);
a0d0e21e
LW
2377 int fd;
2378
57171420
BS
2379 if (IoIFP(io))
2380 do_close(gv, FALSE);
2381
a0d0e21e 2382 TAINT_PROPER("socket");
6ad3d225 2383 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW
2384 if (fd < 0)
2385 RETPUSHUNDEF;
460c8493
IZ
2386 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2387 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2388 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2389 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW
2390 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2391 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2392 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW
2393 RETPUSHUNDEF;
2394 }
8d2a6795
GS
2395#if defined(HAS_FCNTL) && defined(F_SETFD)
2396 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2397#endif
a0d0e21e
LW
2398
2399 RETPUSHYES;
a0d0e21e 2400}
7627e6d0 2401#endif
a0d0e21e
LW
2402
2403PP(pp_sockpair)
2404{
c95c94b1 2405#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
97aff369 2406 dVAR; dSP;
e0b7b5e2 2407 int fd[2];
7452cf6a
AL
2408 const int protocol = POPi;
2409 const int type = POPi;
2410 const int domain = POPi;
e0b7b5e2 2411
159b6efe 2412 GV * const gv2 = MUTABLE_GV(POPs);
49561e08
FC
2413 IO * const io2 = GvIOn(gv2);
2414 GV * const gv1 = MUTABLE_GV(POPs);
2415 IO * const io1 = GvIOn(gv1);
a0d0e21e 2416
49561e08 2417 if (IoIFP(io1))
dc0d0a5f 2418 do_close(gv1, FALSE);
49561e08 2419 if (IoIFP(io2))
dc0d0a5f 2420 do_close(gv2, FALSE);
57171420 2421
a0d0e21e 2422 TAINT_PROPER("socketpair");
6ad3d225 2423 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2424 RETPUSHUNDEF;
460c8493
IZ
2425 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2426 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2427 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ
2428 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2429 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2430 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2431 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW
2432 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2433 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2434 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW
2435 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2436 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2437 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW
2438 RETPUSHUNDEF;
2439 }
8d2a6795
GS
2440#if defined(HAS_FCNTL) && defined(F_SETFD)
2441 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2442 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2443#endif
a0d0e21e
LW
2444
2445 RETPUSHYES;
2446#else
cea2e8a9 2447 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW
2448#endif
2449}
2450
7627e6d0
NC
2451#ifdef HAS_SOCKET
2452
a0d0e21e
LW
2453PP(pp_bind)
2454{
97aff369 2455 dVAR; dSP;
7452cf6a 2456 SV * const addrsv = POPs;
349d4f2f
NC
2457 /* OK, so on what platform does bind modify addr? */
2458 const char *addr;
159b6efe 2459 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2460 IO * const io = GvIOn(gv);
a0d0e21e 2461 STRLEN len;
e0b7b5e2 2462 int op_type;
a0d0e21e 2463
8a6c0fcb 2464 if (!IoIFP(io))
a0d0e21e
LW
2465 goto nuts;
2466
349d4f2f 2467 addr = SvPV_const(addrsv, len);
e0b7b5e2 2468 op_type = PL_op->op_type;
32b81f04
NC
2469 TAINT_PROPER(PL_op_desc[op_type]);
2470 if ((op_type == OP_BIND
2471 ? PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len)
2472 : PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len))
2473 >= 0)
a0d0e21e
LW
2474 RETPUSHYES;
2475 else
2476 RETPUSHUNDEF;
2477
2478nuts:
fbcda526 2479 report_evil_fh(gv);
93189314 2480 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2481 RETPUSHUNDEF;
a0d0e21e
LW
2482}
2483
2484PP(pp_listen)
2485{
97aff369 2486 dVAR; dSP;
7452cf6a 2487 const int backlog = POPi;
159b6efe 2488 GV * const gv = MUTABLE_GV(POPs);
8a6c0fcb 2489 IO * const io = GvIOn(gv);
a0d0e21e 2490
8a6c0fcb 2491 if (!IoIFP(io))
a0d0e21e
LW
2492 goto nuts;
2493
6ad3d225 2494 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW
2495 RETPUSHYES;
2496 else
2497 RETPUSHUNDEF;
2498
2499nuts:
fbcda526 2500 report_evil_fh(gv);
93189314 2501 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2502 RETPUSHUNDEF;
a0d0e21e
LW
2503}
2504
2505PP(pp_accept)
2506{
97aff369 2507 dVAR; dSP; dTARGET;
eb578fdb 2508 IO *nstio;
93d47a36 2509 char namebuf[MAXPATHLEN];
b5afd346 2510#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
93d47a36
JH
2511 Sock_size_t len = sizeof (struct sockaddr_in);
2512#else
2513 Sock_size_t len = sizeof namebuf;
2514#endif
159b6efe
NC
2515 GV * const ggv = MUTABLE_GV(POPs);
2516 GV * const ngv = MUTABLE_GV(POPs);
a0d0e21e
LW
2517 int fd;
2518
8a6c0fcb 2519 IO * const gstio = GvIO(ggv);
a0d0e21e
LW
2520 if (!gstio || !IoIFP(gstio))
2521 goto nuts;
2522
2523 nstio = GvIOn(ngv);
93d47a36 2524 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
e294cc5d
JH
2525#if defined(OEMVS)
2526 if (len == 0) {
2527 /* Some platforms indicate zero length when an AF_UNIX client is
2528 * not bound. Simulate a non-zero-length sockaddr structure in
2529 * this case. */
2530 namebuf[0] = 0; /* sun_len */
2531 namebuf[1] = AF_UNIX; /* sun_family */
2532 len = 2;
2533 }
2534#endif
2535
a0d0e21e
LW
2536 if (fd < 0)
2537 goto badexit;
a70048fb
AB
2538 if (IoIFP(nstio))
2539 do_close(ngv, FALSE);
460c8493
IZ
2540 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2541 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2542 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2543 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW
2544 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2545 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2546 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW
2547 goto badexit;
2548 }
8d2a6795
GS
2549#if defined(HAS_FCNTL) && defined(F_SETFD)
2550 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2551#endif
a0d0e21e 2552
381c1bae 2553#ifdef __SCO_VERSION__
93d47a36 2554 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2555#endif
ed79a026 2556
93d47a36 2557 PUSHp(namebuf, len);
a0d0e21e
LW
2558 RETURN;
2559
2560nuts:
fbcda526 2561 report_evil_fh(ggv);
93189314 2562 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2563
2564badexit:
2565 RETPUSHUNDEF;
2566
a0d0e21e
LW
2567}
2568
2569PP(pp_shutdown)
2570{
97aff369 2571 dVAR; dSP; dTARGET;
7452cf6a 2572 const int how = POPi;
159b6efe 2573 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2574 IO * const io = GvIOn(gv);
a0d0e21e 2575
8a6c0fcb 2576 if (!IoIFP(io))
a0d0e21e
LW
2577 goto nuts;
2578
6ad3d225 2579 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW
2580 RETURN;
2581
2582nuts:
fbcda526 2583 report_evil_fh(gv);
93189314 2584 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2585 RETPUSHUNDEF;
a0d0e21e
LW
2586}
2587
a0d0e21e
LW
2588PP(pp_ssockopt)
2589{
97aff369 2590 dVAR; dSP;
7452cf6a 2591 const int optype = PL_op->op_type;
561b68a9 2592 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
7452cf6a
AL
2593 const unsigned int optname = (unsigned int) POPi;
2594 const unsigned int lvl = (unsigned int) POPi;
159b6efe 2595 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2596 IO * const io = GvIOn(gv);
a0d0e21e 2597 int fd;
1e422769 2598 Sock_size_t len;
a0d0e21e 2599
49225470 2600 if (!IoIFP(io))
a0d0e21e
LW
2601 goto nuts;
2602
760ac839 2603 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2604 switch (optype) {
2605 case OP_GSOCKOPT:
748a9306 2606 SvGROW(sv, 257);
a0d0e21e 2607 (void)SvPOK_only(sv);
748a9306
LW
2608 SvCUR_set(sv,256);
2609 *SvEND(sv) ='\0';
1e422769 2610 len = SvCUR(sv);
6ad3d225 2611 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2612 goto nuts2;
1e422769 2613 SvCUR_set(sv, len);
748a9306 2614 *SvEND(sv) ='\0';
a0d0e21e
LW
2615 PUSHs(sv);
2616 break;
2617 case OP_SSOCKOPT: {
1215b447
JH
2618#if defined(__SYMBIAN32__)
2619# define SETSOCKOPT_OPTION_VALUE_T void *
2620#else
2621# define SETSOCKOPT_OPTION_VALUE_T const char *
2622#endif
2623 /* XXX TODO: We need to have a proper type (a Configure probe,
2624 * etc.) for what the C headers think of the third argument of
2625 * setsockopt(), the option_value read-only buffer: is it
2626 * a "char *", or a "void *", const or not. Some compilers
2627 * don't take kindly to e.g. assuming that "char *" implicitly
2628 * promotes to a "void *", or to explicitly promoting/demoting
2629 * consts to non/vice versa. The "const void *" is the SUS
2630 * definition, but that does not fly everywhere for the above
2631 * reasons. */
2632 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769
PP
2633 int aint;
2634 if (SvPOKp(sv)) {
2d8e6c8d 2635 STRLEN l;
1215b447 2636 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2637 len = l;
1e422769 2638 }
56ee1660 2639 else {
a0d0e21e 2640 aint = (int)SvIV(sv);
1215b447 2641 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW
2642 len = sizeof(int);
2643 }
6ad3d225 2644 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2645 goto nuts2;
3280af22 2646 PUSHs(&PL_sv_yes);
a0d0e21e
LW
2647 }
2648 break;
2649 }
2650 RETURN;
2651
2652nuts:
fbcda526 2653 report_evil_fh(gv);
93189314 2654 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2655nuts2:
2656 RETPUSHUNDEF;
2657
a0d0e21e
LW
2658}
2659
a0d0e21e
LW
2660PP(pp_getpeername)
2661{
97aff369 2662 dVAR; dSP;
7452cf6a 2663 const int optype = PL_op->op_type;
159b6efe 2664 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2665 IO * const io = GvIOn(gv);
7452cf6a 2666 Sock_size_t len;
a0d0e21e
LW
2667 SV *sv;
2668 int fd;
a0d0e21e 2669
49225470 2670 if (!IoIFP(io))
a0d0e21e
LW
2671 goto nuts;
2672
561b68a9 2673 sv = sv_2mortal(newSV(257));
748a9306 2674 (void)SvPOK_only(sv);
1e422769
PP
2675 len = 256;
2676 SvCUR_set(sv, len);
748a9306 2677 *SvEND(sv) ='\0';
760ac839 2678 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2679 switch (optype) {
2680 case OP_GETSOCKNAME:
6ad3d225 2681 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW
2682 goto nuts2;
2683 break;
2684 case OP_GETPEERNAME:
6ad3d225 2685 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2686 goto nuts2;
490ab354
JH
2687#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2688 {
2689 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";
2690 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2691 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2692 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2693 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2694 goto nuts2;
490ab354
JH
2695 }
2696 }
2697#endif
a0d0e21e
LW
2698 break;
2699 }
13826f2c
CS
2700#ifdef BOGUS_GETNAME_RETURN
2701 /* Interactive Unix, getpeername() and getsockname()
2702 does not return valid namelen */
1e422769
PP
2703 if (len == BOGUS_GETNAME_RETURN)
2704 len = sizeof(struct sockaddr);
13826f2c 2705#endif
1e422769 2706 SvCUR_set(sv, len);
748a9306 2707 *SvEND(sv) ='\0';
a0d0e21e
LW
2708 PUSHs(sv);
2709 RETURN;
2710
2711nuts:
fbcda526 2712 report_evil_fh(gv);
93189314 2713 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2714nuts2:
2715 RETPUSHUNDEF;
7627e6d0 2716}
a0d0e21e 2717
a0d0e21e 2718#endif
a0d0e21e
LW
2719
2720/* Stat calls. */
2721
a0d0e21e
LW
2722PP(pp_stat)
2723{
97aff369 2724 dVAR;
39644a26 2725 dSP;
10edeb5d 2726 GV *gv = NULL;
55dd8d50 2727 IO *io = NULL;
54310121 2728 I32 gimme;
a0d0e21e 2729 I32 max = 13;
109c43ed 2730 SV* sv;
a0d0e21e 2731
109c43ed
FC
2732 if (PL_op->op_flags & OPf_REF ? (gv = cGVOP_gv, 1)
2733 : !!(sv=POPs, gv = MAYBE_DEREF_GV(sv))) {
8a4e5b40 2734 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2735 if (gv != PL_defgv) {
5d329e6e 2736 do_fstat_warning_check:
a2a5de95 2737 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
93fad930
FC
2738 "lstat() on filehandle%s%"SVf,
2739 gv ? " " : "",
2740 SVfARG(gv
bf29d05f
BF
2741 ? sv_2mortal(newSVhek(GvENAME_HEK(gv)))
2742 : &PL_sv_no));
5d3e98de 2743 } else if (PL_laststype != OP_LSTAT)
b042df57 2744 /* diag_listed_as: The stat preceding %s wasn't an lstat */
8a4e5b40 2745 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD
2746 }
2747
2dd78f96 2748 if (gv != PL_defgv) {
b8413ac3 2749 bool havefp;
0d5064f1 2750 do_fstat_have_io:
b8413ac3 2751 havefp = FALSE;
3280af22 2752 PL_laststype = OP_STAT;
0d5064f1 2753 PL_statgv = gv ? gv : (GV *)io;
76f68e9b 2754 sv_setpvs(PL_statname, "");
5228a96c 2755 if(gv) {
ad02613c 2756 io = GvIO(gv);
0d5064f1
FC
2757 }
2758 if (io) {
5228a96c
SP
2759 if (IoIFP(io)) {
2760 PL_laststatval =
2761 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
8080e3c8 2762 havefp = TRUE;
5228a96c 2763 } else if (IoDIRP(io)) {
5228a96c 2764 PL_laststatval =
3497a01f 2765 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
8080e3c8 2766 havefp = TRUE;
5228a96c
SP
2767 } else {
2768 PL_laststatval = -1;
2769 }
5228a96c 2770 }
05bb32d2 2771 else PL_laststatval = -1;
daa30a68 2772 if (PL_laststatval < 0 && !havefp) report_evil_fh(gv);
5228a96c
SP
2773 }
2774
9ddeeac9 2775 if (PL_laststatval < 0) {
a0d0e21e 2776 max = 0;
9ddeeac9 2777 }
a0d0e21e
LW
2778 }
2779 else {
109c43ed 2780 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2781 io = MUTABLE_IO(SvRV(sv));
ad02613c
SP
2782 if (PL_op->op_type == OP_LSTAT)
2783 goto do_fstat_warning_check;
2784 goto do_fstat_have_io;
2785 }
2786
4bac9ae4 2787 SvTAINTED_off(PL_statname); /* previous tainting irrelevant */
109c43ed 2788 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
a0714e2c 2789 PL_statgv = NULL;
533c011a
NIS
2790 PL_laststype = PL_op->op_type;
2791 if (PL_op->op_type == OP_LSTAT)
0510663f 2792 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2793 else
0510663f 2794 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2795 if (PL_laststatval < 0) {
5d37acd6
DM
2796 if (ckWARN(WARN_NEWLINE) &&
2797 strchr(SvPV_nolen_const(PL_statname), '\n'))
2798 {
2799 /* PL_warn_nl is constant */
2800 GCC_DIAG_IGNORE(-Wformat-nonliteral);
9014280d 2801 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
5d37acd6
DM
2802 GCC_DIAG_RESTORE;
2803 }
a0d0e21e
LW
2804 max = 0;
2805 }
2806 }
2807
54310121
PP
2808 gimme = GIMME_V;
2809 if (gimme != G_ARRAY) {
2810 if (gimme != G_VOID)
2811 XPUSHs(boolSV(max));
2812 RETURN;
a0d0e21e
LW
2813 }
2814 if (max) {
36477c24
PP
2815 EXTEND(SP, max);
2816 EXTEND_MORTAL(max);
6e449a3a 2817 mPUSHi(PL_statcache.st_dev);
8d8cba88
TC
2818#if ST_INO_SIZE > IVSIZE
2819 mPUSHn(PL_statcache.st_ino);
2820#else
2821# if ST_INO_SIGN <= 0
6e449a3a 2822 mPUSHi(PL_statcache.st_ino);
8d8cba88
TC
2823# else
2824 mPUSHu(PL_statcache.st_ino);
2825# endif
2826#endif
6e449a3a
MHM
2827 mPUSHu(PL_statcache.st_mode);
2828 mPUSHu(PL_statcache.st_nlink);
dfff4baf
BF
2829
2830 sv_setuid(PUSHmortal, PL_statcache.st_uid);
2831 sv_setgid(PUSHmortal, PL_statcache.st_gid);
2832
cbdc8872 2833#ifdef USE_STAT_RDEV
6e449a3a 2834 mPUSHi(PL_statcache.st_rdev);
cbdc8872 2835#else
84bafc02 2836 PUSHs(newSVpvs_flags("", SVs_TEMP));
cbdc8872 2837#endif
146174a9 2838#if Off_t_size > IVSIZE
6e449a3a 2839 mPUSHn(PL_statcache.st_size);
146174a9 2840#else
6e449a3a 2841 mPUSHi(PL_statcache.st_size);
146174a9 2842#endif
cbdc8872 2843#ifdef BIG_TIME
6e449a3a
MHM
2844 mPUSHn(PL_statcache.st_atime);
2845 mPUSHn(PL_statcache.st_mtime);
2846 mPUSHn(PL_statcache.st_ctime);
cbdc8872 2847#else
6e449a3a
MHM
2848 mPUSHi(PL_statcache.st_atime);
2849 mPUSHi(PL_statcache.st_mtime);
2850 mPUSHi(PL_statcache.st_ctime);
cbdc8872 2851#endif
a0d0e21e 2852#ifdef USE_STAT_BLOCKS
6e449a3a
MHM
2853 mPUSHu(PL_statcache.st_blksize);
2854 mPUSHu(PL_statcache.st_blocks);
a0d0e21e 2855#else
84bafc02
NC
2856 PUSHs(newSVpvs_flags("", SVs_TEMP));
2857 PUSHs(newSVpvs_flags("", SVs_TEMP));
a0d0e21e
LW
2858#endif
2859 }
2860 RETURN;
2861}
2862
6c48f025
NC
2863/* All filetest ops avoid manipulating the perl stack pointer in their main
2864 bodies (since commit d2c4d2d1e22d3125), and return using either
2865 S_ft_return_false() or S_ft_return_true(). These two helper functions are
2866 the only two which manipulate the perl stack. To ensure that no stack
2867 manipulation macros are used, the filetest ops avoid defining a local copy
2868 of the stack pointer with dSP. */
2869
8db8f6b6
FC
2870/* If the next filetest is stacked up with this one
2871 (PL_op->op_private & OPpFT_STACKING), we leave
2872 the original argument on the stack for success,
2873 and skip the stacked operators on failure.
2874 The next few macros/functions take care of this.
2875*/
2876
2877static OP *
9a6b02e8 2878S_ft_return_false(pTHX_ SV *ret) {
8db8f6b6 2879 OP *next = NORMAL;
697f9d37
NC
2880 dSP;
2881
226b9201 2882 if (PL_op->op_flags & OPf_REF) XPUSHs(ret);
8db8f6b6
FC
2883 else SETs(ret);
2884 PUTBACK;
697f9d37 2885
9a6b02e8
NC
2886 if (PL_op->op_private & OPpFT_STACKING) {
2887 while (OP_IS_FILETEST(next->op_type)
2888 && next->op_private & OPpFT_STACKED)
2889 next = next->op_next;
2890 }
8db8f6b6
FC
2891 return next;
2892}
2893
07ed4d4b
NC
2894PERL_STATIC_INLINE OP *
2895S_ft_return_true(pTHX_ SV *ret) {
2896 dSP;
2897 if (PL_op->op_flags & OPf_REF)
2898 XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret));
2899 else if (!(PL_op->op_private & OPpFT_STACKING))
2900 SETs(ret);
2901 PUTBACK;
2902 return NORMAL;
2903}
8db8f6b6 2904
48d023d6
NC
2905#define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no)
2906#define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef)
2907#define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes)
8db8f6b6 2908
6f1401dc 2909#define tryAMAGICftest_MG(chr) STMT_START { \
d2f67720 2910 if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \
8db8f6b6
FC
2911 && PL_op->op_flags & OPf_KIDS) { \
2912 OP *next = S_try_amagic_ftest(aTHX_ chr); \
2913 if (next) return next; \
2914 } \
6f1401dc
DM
2915 } STMT_END
2916
8db8f6b6 2917STATIC OP *
6f1401dc
DM
2918S_try_amagic_ftest(pTHX_ char chr) {
2919 dVAR;
d2f67720 2920 SV *const arg = *PL_stack_sp;
6f1401dc
DM
2921
2922 assert(chr != '?');
c5780028 2923 if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg);
6f1401dc 2924
d2f67720 2925 if (SvAMAGIC(arg))
6f1401dc
DM
2926 {
2927 const char tmpchr = chr;
6f1401dc
DM
2928 SV * const tmpsv = amagic_call(arg,
2929 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
2930 ftest_amg, AMGf_unary);
2931
2932 if (!tmpsv)
8db8f6b6 2933 return NULL;
6f1401dc 2934
48d023d6
NC
2935 return SvTRUE(tmpsv)
2936 ? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv);
6f1401dc 2937 }
8db8f6b6 2938 return NULL;
6f1401dc
DM
2939}
2940
2941
a0d0e21e
LW
2942PP(pp_ftrread)
2943{
97aff369 2944 dVAR;
9cad6237 2945 I32 result;
af9e49b4
NC
2946 /* Not const, because things tweak this below. Not bool, because there's
2947 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2948#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2949 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2950 /* Giving some sort of initial value silences compilers. */
2951# ifdef R_OK
2952 int access_mode = R_OK;
2953# else
2954 int access_mode = 0;
2955# endif
5ff3f7a4 2956#else
af9e49b4
NC
2957 /* access_mode is never used, but leaving use_access in makes the
2958 conditional compiling below much clearer. */
2959 I32 use_access = 0;
5ff3f7a4 2960#endif
2dcac756 2961 Mode_t stat_mode = S_IRUSR;
a0d0e21e 2962
af9e49b4 2963 bool effective = FALSE;
07fe7c6a 2964 char opchar = '?';
af9e49b4 2965
7fb13887
BM
2966 switch (PL_op->op_type) {
2967 case OP_FTRREAD: opchar = 'R'; break;
2968 case OP_FTRWRITE: opchar = 'W'; break;
2969 case OP_FTREXEC: opchar = 'X'; break;
2970 case OP_FTEREAD: opchar = 'r'; break;
2971 case OP_FTEWRITE: opchar = 'w'; break;
2972 case OP_FTEEXEC: opchar = 'x'; break;
2973 }
6f1401dc 2974 tryAMAGICftest_MG(opchar);
7fb13887 2975
af9e49b4
NC
2976 switch (PL_op->op_type) {
2977 case OP_FTRREAD:
2978#if !(defined(HAS_ACCESS) && defined(R_OK))
2979 use_access = 0;
2980#endif
2981 break;
2982
2983 case OP_FTRWRITE:
5ff3f7a4 2984#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 2985 access_mode = W_OK;
5ff3f7a4 2986#else
af9e49b4 2987 use_access = 0;
5ff3f7a4 2988#endif
af9e49b4
NC
2989 stat_mode = S_IWUSR;
2990 break;
a0d0e21e 2991
af9e49b4 2992 case OP_FTREXEC:
5ff3f7a4 2993#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 2994 access_mode = X_OK;
5ff3f7a4 2995#else
af9e49b4 2996 use_access = 0;
5ff3f7a4 2997#endif
af9e49b4
NC
2998 stat_mode = S_IXUSR;
2999 break;
a0d0e21e 3000
af9e49b4 3001 case OP_FTEWRITE:
faee0e31 3002#ifdef PERL_EFF_ACCESS
af9e49b4 3003 access_mode = W_OK;
5ff3f7a4 3004#endif
af9e49b4 3005 stat_mode = S_IWUSR;
7fb13887 3006 /* fall through */
a0d0e21e 3007
af9e49b4
NC
3008 case OP_FTEREAD:
3009#ifndef PERL_EFF_ACCESS
3010 use_access = 0;
3011#endif
3012 effective = TRUE;
3013 break;
3014
af9e49b4 3015 case OP_FTEEXEC:
faee0e31 3016#ifdef PERL_EFF_ACCESS
b376053d 3017 access_mode = X_OK;
5ff3f7a4 3018#else
af9e49b4 3019 use_access = 0;
5ff3f7a4 3020#endif
af9e49b4
NC
3021 stat_mode = S_IXUSR;
3022 effective = TRUE;
3023 break;
3024 }
a0d0e21e 3025
af9e49b4
NC
3026 if (use_access) {
3027#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
d2f67720 3028 const char *name = SvPV_nolen(*PL_stack_sp);
af9e49b4
NC
3029 if (effective) {
3030# ifdef PERL_EFF_ACCESS
3031 result = PERL_EFF_ACCESS(name, access_mode);
3032# else
3033 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3034 OP_NAME(PL_op));
3035# endif
3036 }
3037 else {
3038# ifdef HAS_ACCESS
3039 result = access(name, access_mode);
3040# else
3041 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3042# endif
3043 }
5ff3f7a4 3044 if (result == 0)
d2c4d2d1 3045 FT_RETURNYES;
5ff3f7a4 3046 if (result < 0)
d2c4d2d1
FC
3047 FT_RETURNUNDEF;
3048 FT_RETURNNO;
af9e49b4 3049#endif
22865c03 3050 }
af9e49b4 3051
40c852de 3052 result = my_stat_flags(0);
a0d0e21e 3053 if (result < 0)
8db8f6b6 3054 FT_RETURNUNDEF;
af9e49b4 3055 if (cando(stat_mode, effective, &PL_statcache))
8db8f6b6
FC
3056 FT_RETURNYES;
3057 FT_RETURNNO;
a0d0e21e
LW
3058}
3059
3060PP(pp_ftis)
3061{
97aff369 3062 dVAR;
fbb0b3b3 3063 I32 result;
d7f0a2f4 3064 const int op_type = PL_op->op_type;
07fe7c6a 3065 char opchar = '?';
07fe7c6a
BM
3066
3067 switch (op_type) {
3068 case OP_FTIS: opchar = 'e'; break;
3069 case OP_FTSIZE: opchar = 's'; break;
3070 case OP_FTMTIME: opchar = 'M'; break;
3071 case OP_FTCTIME: opchar = 'C'; break;
3072 case OP_FTATIME: opchar = 'A'; break;
3073 }
6f1401dc 3074 tryAMAGICftest_MG(opchar);
07fe7c6a 3075
40c852de 3076 result = my_stat_flags(0);
a0d0e21e 3077 if (result < 0)
8db8f6b6 3078 FT_RETURNUNDEF;
d7f0a2f4 3079 if (op_type == OP_FTIS)
8db8f6b6 3080 FT_RETURNYES;
957b0e1d 3081 {
d7f0a2f4
NC
3082 /* You can't dTARGET inside OP_FTIS, because you'll get
3083 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3084 dTARGET;
d7f0a2f4 3085 switch (op_type) {
957b0e1d
NC
3086 case OP_FTSIZE:
3087#if Off_t_size > IVSIZE
8db8f6b6 3088 sv_setnv(TARG, (NV)PL_statcache.st_size);
957b0e1d 3089#else
8db8f6b6 3090 sv_setiv(TARG, (IV)PL_statcache.st_size);
957b0e1d
NC
3091#endif
3092 break;
3093 case OP_FTMTIME:
8db8f6b6
FC
3094 sv_setnv(TARG,
3095 ((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 );
957b0e1d
NC
3096 break;
3097 case OP_FTATIME:
8db8f6b6
FC
3098 sv_setnv(TARG,
3099 ((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 );
957b0e1d
NC
3100 break;
3101 case OP_FTCTIME:
8db8f6b6
FC
3102 sv_setnv(TARG,
3103 ((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 );
957b0e1d
NC
3104 break;
3105 }
8db8f6b6 3106 SvSETMAGIC(TARG);
48d023d6
NC
3107 return SvTRUE_nomg(TARG)
3108 ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
957b0e1d 3109 }
a0d0e21e
LW
3110}
3111
a0d0e21e
LW
3112PP(pp_ftrowned)
3113{
97aff369 3114 dVAR;
fbb0b3b3 3115 I32 result;
07fe7c6a 3116 char opchar = '?';
17ad201a 3117
7fb13887
BM
3118 switch (PL_op->op_type) {
3119 case OP_FTROWNED: opchar = 'O'; break;
3120 case OP_FTEOWNED: opchar = 'o'; break;
3121 case OP_FTZERO: opchar = 'z'; break;
3122 case OP_FTSOCK: opchar = 'S'; break;
3123 case OP_FTCHR: opchar = 'c'; break;
3124 case OP_FTBLK: opchar = 'b'; break;
3125 case OP_FTFILE: opchar = 'f'; break;
3126 case OP_FTDIR: opchar = 'd'; break;
3127 case OP_FTPIPE: opchar = 'p'; break;
3128 case OP_FTSUID: opchar = 'u'; break;
3129 case OP_FTSGID: opchar = 'g'; break;
3130 case OP_FTSVTX: opchar = 'k'; break;
3131 }
6f1401dc 3132 tryAMAGICftest_MG(opchar);
7fb13887 3133
17ad201a
NC
3134 /* I believe that all these three are likely to be defined on most every
3135 system these days. */
3136#ifndef S_ISUID
c410dd6a 3137 if(PL_op->op_type == OP_FTSUID) {
8db8f6b6 3138 FT_RETURNNO;
c410dd6a 3139 }
17ad201a
NC
3140#endif
3141#ifndef S_ISGID
c410dd6a 3142 if(PL_op->op_type == OP_FTSGID) {
8db8f6b6 3143 FT_RETURNNO;
c410dd6a 3144 }
17ad201a
NC
3145#endif
3146#ifndef S_ISVTX
c410dd6a 3147 if(PL_op->op_type == OP_FTSVTX) {
8db8f6b6 3148 FT_RETURNNO;
c410dd6a 3149 }
17ad201a
NC
3150#endif
3151
40c852de 3152 result = my_stat_flags(0);
a0d0e21e 3153 if (result < 0)
8db8f6b6 3154 FT_RETURNUNDEF;
f1cb2d48
NC
3155 switch (PL_op->op_type) {
3156 case OP_FTROWNED:
985213f2 3157 if (PL_statcache.st_uid == PerlProc_getuid())
8db8f6b6 3158 FT_RETURNYES;
f1cb2d48
NC
3159 break;
3160 case OP_FTEOWNED:
985213f2 3161 if (PL_statcache.st_uid == PerlProc_geteuid())
8db8f6b6 3162 FT_RETURNYES;
f1cb2d48
NC
3163 break;
3164 case OP_FTZERO:
3165 if (PL_statcache.st_size == 0)
8db8f6b6 3166 FT_RETURNYES;
f1cb2d48
NC
3167 break;
3168 case OP_FTSOCK:
3169 if (S_ISSOCK(PL_statcache.st_mode))
8db8f6b6 3170 FT_RETURNYES;
f1cb2d48
NC
3171 break;
3172 case OP_FTCHR:
3173 if (S_ISCHR(PL_statcache.st_mode))
8db8f6b6 3174 FT_RETURNYES;
f1cb2d48
NC
3175 break;
3176 case OP_FTBLK:
3177 if (S_ISBLK(PL_statcache.st_mode))
8db8f6b6 3178 FT_RETURNYES;
f1cb2d48
NC
3179 break;
3180 case OP_FTFILE:
3181 if (S_ISREG(PL_statcache.st_mode))
8db8f6b6 3182 FT_RETURNYES;
f1cb2d48
NC
3183 break;
3184 case OP_FTDIR:
3185 if (S_ISDIR(PL_statcache.st_mode))
8db8f6b6 3186 FT_RETURNYES;
f1cb2d48
NC
3187 break;
3188 case OP_FTPIPE:
3189 if (S_ISFIFO(PL_statcache.st_mode))
8db8f6b6 3190 FT_RETURNYES;
f1cb2d48 3191 break;
a0d0e21e 3192#ifdef S_ISUID
17ad201a
NC
3193 case OP_FTSUID:
3194 if (PL_statcache.st_mode & S_ISUID)
8db8f6b6 3195 FT_RETURNYES;
17ad201a 3196 break;
a0d0e21e 3197#endif
a0d0e21e 3198#ifdef S_ISGID
17ad201a
NC
3199 case OP_FTSGID:
3200 if (PL_statcache.st_mode & S_ISGID)
8db8f6b6 3201 FT_RETURNYES;
17ad201a
NC
3202 break;
3203#endif
3204#ifdef S_ISVTX
3205 case OP_FTSVTX:
3206 if (PL_statcache.st_mode & S_ISVTX)
8db8f6b6 3207 FT_RETURNYES;
17ad201a 3208 break;
a0d0e21e 3209#endif
17ad201a 3210 }
8db8f6b6 3211 FT_RETURNNO;
a0d0e21e
LW
3212}
3213
17ad201a 3214PP(pp_ftlink)
a0d0e21e 3215{
97aff369 3216 dVAR;
500ff13f 3217 I32 result;
07fe7c6a 3218
6f1401dc 3219 tryAMAGICftest_MG('l');
40c852de 3220 result = my_lstat_flags(0);
500ff13f 3221
a0d0e21e 3222 if (result < 0)
8db8f6b6 3223 FT_RETURNUNDEF;
17ad201a 3224 if (S_ISLNK(PL_statcache.st_mode))
8db8f6b6
FC
3225 FT_RETURNYES;
3226 FT_RETURNNO;
a0d0e21e
LW
3227}
3228
3229PP(pp_fttty)
3230{
97aff369 3231 dVAR;
a0d0e21e
LW
3232 int fd;
3233 GV *gv;
0784aae0 3234 char *name = NULL;
40c852de 3235 STRLEN namelen;
fb73857a 3236
6f1401dc 3237 tryAMAGICftest_MG('t');
07fe7c6a 3238
533c011a 3239 if (PL_op->op_flags & OPf_REF)
146174a9 3240 gv = cGVOP_gv;
e5e154d2 3241 else {
d2f67720 3242 SV *tmpsv = *PL_stack_sp;
e5e154d2 3243 if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) {
40c852de
DM
3244 name = SvPV_nomg(tmpsv, namelen);
3245 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
e5e154d2 3246 }
40c852de 3247 }
fb73857a 3248
a0d0e21e 3249 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3250 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
b6cb94c5 3251 else if (name && isDIGIT(*name))
40c852de 3252 fd = atoi(name);
a0d0e21e 3253 else
8db8f6b6 3254 FT_RETURNUNDEF;
6ad3d225 3255 if (PerlLIO_isatty(fd))
8db8f6b6
FC
3256 FT_RETURNYES;
3257 FT_RETURNNO;
a0d0e21e
LW
3258}
3259
a0d0e21e
LW
3260PP(pp_fttext)
3261{
97aff369 3262 dVAR;
a0d0e21e 3263 I32 i;
b66f3475 3264 SSize_t len;
a0d0e21e
LW
3265 I32 odd = 0;
3266 STDCHAR tbuf[512];
eb578fdb
KW
3267 STDCHAR *s;
3268 IO *io;
3269 SV *sv = NULL;
5f05dabc 3270 GV *gv;
146174a9 3271 PerlIO *fp;
a0d0e21e 3272
6f1401dc 3273 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3274
533c011a 3275 if (PL_op->op_flags & OPf_REF)
146174a9 3276 gv = cGVOP_gv;
d2c4d2d1 3277 else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t))
8db8f6b6 3278 == OPpFT_STACKED)
ba8182f8 3279 gv = PL_defgv;
d2c4d2d1 3280 else {
d2f67720 3281 sv = *PL_stack_sp;
d2c4d2d1 3282 gv = MAYBE_DEREF_GV_nomg(sv);
8db8f6b6 3283 }
5f05dabc
PP
3284
3285 if (gv) {
3280af22
NIS
3286 if (gv == PL_defgv) {
3287 if (PL_statgv)
bd5f6c01
FC
3288 io = SvTYPE(PL_statgv) == SVt_PVIO
3289 ? (IO *)PL_statgv
3290 : GvIO(PL_statgv);
a0d0e21e 3291 else {
a0d0e21e
LW
3292 goto really_filename;
3293 }
3294 }
3295 else {
3280af22 3296 PL_statgv = gv;
76f68e9b 3297 sv_setpvs(PL_statname, "");
3280af22 3298 io = GvIO(PL_statgv);
a0d0e21e 3299 }
eb4c377a 3300 PL_laststatval = -1;
21a64c3e 3301 PL_laststype = OP_STAT;
a0d0e21e 3302 if (io && IoIFP(io)) {
5f05dabc 3303 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3304 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS
3305 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3306 if (PL_laststatval < 0)
8db8f6b6 3307 FT_RETURNUNDEF;
9cbac4c7 3308 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3309 if (PL_op->op_type == OP_FTTEXT)
8db8f6b6 3310 FT_RETURNNO;
a0d0e21e 3311 else
8db8f6b6 3312 FT_RETURNYES;
9cbac4c7 3313 }
a20bf0c3 3314 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3315 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3316 if (i != EOF)
760ac839 3317 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3318 }
a20bf0c3 3319 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
8db8f6b6 3320 FT_RETURNYES;
a20bf0c3
JH
3321 len = PerlIO_get_bufsiz(IoIFP(io));
3322 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW
3323 /* sfio can have large buffers - limit to 512 */
3324 if (len > 512)
3325 len = 512;
a0d0e21e
LW
3326 }
3327 else {
2ad48547 3328 SETERRNO(EBADF,RMS_IFI);
3f12cff4 3329 report_evil_fh(gv);
93189314 3330 SETERRNO(EBADF,RMS_IFI);
8db8f6b6 3331 FT_RETURNUNDEF;
a0d0e21e
LW
3332 }
3333 }
3334 else {
81e9306f 3335 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
5f05dabc 3336 really_filename:
a0714e2c 3337 PL_statgv = NULL;
aa07b2f6 3338 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
ad2d99e3
FC
3339 if (!gv) {
3340 PL_laststatval = -1;
3341 PL_laststype = OP_STAT;
3342 }
349d4f2f
NC
3343 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3344 '\n'))
5d37acd6
DM
3345 {
3346 /* PL_warn_nl is constant */
3347 GCC_DIAG_IGNORE(-Wformat-nonliteral);
9014280d