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Teach B::Concise about VMS hushed flag
[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__)
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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
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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
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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
CL
478#ifdef VMS
479 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
480#endif
a0d0e21e
LW
481 if (SP - MARK != 1) {
482 dTARGET;
3280af22 483 do_join(TARG, &PL_sv_no, MARK, SP);
c5df3096 484 exsv = TARG;
a0d0e21e
LW
485 SP = MARK + 1;
486 }
487 else {
c5df3096 488 exsv = TOPs;
a0d0e21e 489 }
c5df3096 490
72d74926 491 if (SvROK(exsv) || (SvPV_const(exsv, len), len)) {
c5df3096
Z
492 /* well-formed exception supplied */
493 }
eed484f9
DD
494 else {
495 SV * const errsv = ERRSV;
8b3945e7 496 SvGETMAGIC(errsv);
eed484f9
DD
497 if (SvROK(errsv)) {
498 exsv = errsv;
499 if (sv_isobject(exsv)) {
500 HV * const stash = SvSTASH(SvRV(exsv));
501 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
502 if (gv) {
503 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
504 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
505 EXTEND(SP, 3);
506 PUSHMARK(SP);
507 PUSHs(exsv);
508 PUSHs(file);
509 PUSHs(line);
510 PUTBACK;
511 call_sv(MUTABLE_SV(GvCV(gv)),
512 G_SCALAR|G_EVAL|G_KEEPERR);
513 exsv = sv_mortalcopy(*PL_stack_sp--);
514 }
05423cc9 515 }
4e6ea2c3 516 }
8b3945e7 517 else if (SvPOK(errsv) && SvCUR(errsv)) {
eed484f9
DD
518 exsv = sv_mortalcopy(errsv);
519 sv_catpvs(exsv, "\t...propagated");
520 }
521 else {
522 exsv = newSVpvs_flags("Died", SVs_TEMP);
523 }
c5df3096 524 }
9fed9930 525 return die_sv(exsv);
a0d0e21e
LW
526}
527
528/* I/O. */
529
d682515d 530OP *
3e0cb5de 531Perl_tied_method(pTHX_ SV *methname, SV **sp, SV *const sv,
d682515d 532 const MAGIC *const mg, const U32 flags, U32 argc, ...)
6bcca55b 533{
d8ef3a16
DM
534 SV **orig_sp = sp;
535 I32 ret_args;
536
d682515d 537 PERL_ARGS_ASSERT_TIED_METHOD;
6bcca55b
NC
538
539 /* Ensure that our flag bits do not overlap. */
d682515d
NC
540 assert((TIED_METHOD_MORTALIZE_NOT_NEEDED & G_WANT) == 0);
541 assert((TIED_METHOD_ARGUMENTS_ON_STACK & G_WANT) == 0);
94bc412f 542 assert((TIED_METHOD_SAY & G_WANT) == 0);
6bcca55b 543
d8ef3a16
DM
544 PUTBACK; /* sp is at *foot* of args, so this pops args from old stack */
545 PUSHSTACKi(PERLSI_MAGIC);
546 EXTEND(SP, argc+1); /* object + args */
6bcca55b 547 PUSHMARK(sp);
d682515d 548 PUSHs(SvTIED_obj(sv, mg));
d8ef3a16
DM
549 if (flags & TIED_METHOD_ARGUMENTS_ON_STACK) {
550 Copy(orig_sp + 2, sp + 1, argc, SV*); /* copy args to new stack */
1a8c1d59 551 sp += argc;
d8ef3a16 552 }
1a8c1d59 553 else if (argc) {
d682515d
NC
554 const U32 mortalize_not_needed
555 = flags & TIED_METHOD_MORTALIZE_NOT_NEEDED;
6bcca55b 556 va_list args;
0d5509eb 557 va_start(args, argc);
6bcca55b
NC
558 do {
559 SV *const arg = va_arg(args, SV *);
560 if(mortalize_not_needed)
561 PUSHs(arg);
562 else
563 mPUSHs(arg);
564 } while (--argc);
565 va_end(args);
566 }
567
568 PUTBACK;
d682515d 569 ENTER_with_name("call_tied_method");
94bc412f
NC
570 if (flags & TIED_METHOD_SAY) {
571 /* local $\ = "\n" */
572 SAVEGENERICSV(PL_ors_sv);
573 PL_ors_sv = newSVpvs("\n");
574 }
3e0cb5de 575 ret_args = call_sv(methname, (flags & G_WANT)|G_METHOD_NAMED);
d8ef3a16
DM
576 SPAGAIN;
577 orig_sp = sp;
578 POPSTACK;
579 SPAGAIN;
580 if (ret_args) { /* copy results back to original stack */
581 EXTEND(sp, ret_args);
582 Copy(orig_sp - ret_args + 1, sp + 1, ret_args, SV*);
583 sp += ret_args;
584 PUTBACK;
585 }
d682515d 586 LEAVE_with_name("call_tied_method");
6bcca55b
NC
587 return NORMAL;
588}
589
d682515d
NC
590#define tied_method0(a,b,c,d) \
591 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,0)
592#define tied_method1(a,b,c,d,e) \
593 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,1,e)
594#define tied_method2(a,b,c,d,e,f) \
595 Perl_tied_method(aTHX_ a,b,c,d,G_SCALAR,2,e,f)
6bcca55b 596
a0d0e21e
LW
597PP(pp_open)
598{
27da23d5 599 dVAR; dSP;
a567e93b
NIS
600 dMARK; dORIGMARK;
601 dTARGET;
a0d0e21e 602 SV *sv;
5b468f54 603 IO *io;
5c144d81 604 const char *tmps;
a0d0e21e 605 STRLEN len;
a567e93b 606 bool ok;
a0d0e21e 607
159b6efe 608 GV * const gv = MUTABLE_GV(*++MARK);
c4420975 609
13be902c 610 if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv)))
cea2e8a9 611 DIE(aTHX_ PL_no_usym, "filehandle");
abc718f2 612
a79db61d 613 if ((io = GvIOp(gv))) {
a5e1d062 614 const MAGIC *mg;
36477c24 615 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 616
a2a5de95 617 if (IoDIRP(io))
d1d15184 618 Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
d0c0e7dd
FC
619 "Opening dirhandle %"HEKf" also as a file",
620 HEKfARG(GvENAME_HEK(gv)));
abc718f2 621
ad64d0ec 622 mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
c4420975
AL
623 if (mg) {
624 /* Method's args are same as ours ... */
625 /* ... except handle is replaced by the object */
3e0cb5de 626 return Perl_tied_method(aTHX_ SV_CONST(OPEN), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
627 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
628 sp - mark);
c4420975 629 }
4592e6ca
NIS
630 }
631
a567e93b
NIS
632 if (MARK < SP) {
633 sv = *++MARK;
634 }
635 else {
35a08ec7 636 sv = GvSVn(gv);
a567e93b
NIS
637 }
638
5c144d81 639 tmps = SvPV_const(sv, len);
4608196e 640 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
a567e93b
NIS
641 SP = ORIGMARK;
642 if (ok)
3280af22
NIS
643 PUSHi( (I32)PL_forkprocess );
644 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW
645 PUSHi(0);
646 else
647 RETPUSHUNDEF;
648 RETURN;
649}
650
651PP(pp_close)
652{
27da23d5 653 dVAR; dSP;
30901a8a
FC
654 GV * const gv =
655 MAXARG == 0 || (!TOPs && !POPs) ? PL_defoutgv : MUTABLE_GV(POPs);
1d603a67 656
2addaaf3
NC
657 if (MAXARG == 0)
658 EXTEND(SP, 1);
659
a79db61d
AL
660 if (gv) {
661 IO * const io = GvIO(gv);
662 if (io) {
a5e1d062 663 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 664 if (mg) {
3e0cb5de 665 return tied_method0(SV_CONST(CLOSE), SP, MUTABLE_SV(io), mg);
a79db61d
AL
666 }
667 }
1d603a67 668 }
54310121 669 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW
670 RETURN;
671}
672
673PP(pp_pipe_op)
674{
a0d0e21e 675#ifdef HAS_PIPE
97aff369 676 dVAR;
9cad6237 677 dSP;
eb578fdb
KW
678 IO *rstio;
679 IO *wstio;
a0d0e21e
LW
680 int fd[2];
681
159b6efe
NC
682 GV * const wgv = MUTABLE_GV(POPs);
683 GV * const rgv = MUTABLE_GV(POPs);
a0d0e21e
LW
684
685 if (!rgv || !wgv)
686 goto badexit;
687
6e592b3a 688 if (!isGV_with_GP(rgv) || !isGV_with_GP(wgv))
cea2e8a9 689 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW
690 rstio = GvIOn(rgv);
691 wstio = GvIOn(wgv);
692
693 if (IoIFP(rstio))
694 do_close(rgv, FALSE);
695 if (IoIFP(wstio))
696 do_close(wgv, FALSE);
697
6ad3d225 698 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW
699 goto badexit;
700
460c8493
IZ
701 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
702 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 703 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 704 IoIFP(wstio) = IoOFP(wstio);
50952442
JH
705 IoTYPE(rstio) = IoTYPE_RDONLY;
706 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW
707
708 if (!IoIFP(rstio) || !IoOFP(wstio)) {
a79db61d
AL
709 if (IoIFP(rstio))
710 PerlIO_close(IoIFP(rstio));
711 else
712 PerlLIO_close(fd[0]);
713 if (IoOFP(wstio))
714 PerlIO_close(IoOFP(wstio));
715 else
716 PerlLIO_close(fd[1]);
a0d0e21e
LW
717 goto badexit;
718 }
4771b018
GS
719#if defined(HAS_FCNTL) && defined(F_SETFD)
720 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
721 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
722#endif
a0d0e21e
LW
723 RETPUSHYES;
724
725badexit:
726 RETPUSHUNDEF;
727#else
cea2e8a9 728 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW
729#endif
730}
731
732PP(pp_fileno)
733{
27da23d5 734 dVAR; dSP; dTARGET;
a0d0e21e
LW
735 GV *gv;
736 IO *io;
760ac839 737 PerlIO *fp;
a5e1d062 738 const MAGIC *mg;
4592e6ca 739
a0d0e21e
LW
740 if (MAXARG < 1)
741 RETPUSHUNDEF;
159b6efe 742 gv = MUTABLE_GV(POPs);
9c9f25b8 743 io = GvIO(gv);
4592e6ca 744
9c9f25b8 745 if (io
ad64d0ec 746 && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar)))
5b468f54 747 {
3e0cb5de 748 return tied_method0(SV_CONST(FILENO), SP, MUTABLE_SV(io), mg);
4592e6ca
NIS
749 }
750
9c9f25b8 751 if (!io || !(fp = IoIFP(io))) {
c289d2f7
JH
752 /* Can't do this because people seem to do things like
753 defined(fileno($foo)) to check whether $foo is a valid fh.
51087808
NC
754
755 report_evil_fh(gv);
c289d2f7 756 */
a0d0e21e 757 RETPUSHUNDEF;
c289d2f7
JH
758 }
759
760ac839 760 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW
761 RETURN;
762}
763
764PP(pp_umask)
765{
97aff369 766 dVAR;
27da23d5 767 dSP;
d7e492a4 768#ifdef HAS_UMASK
27da23d5 769 dTARGET;
761237fe 770 Mode_t anum;
a0d0e21e 771
58536d15 772 if (MAXARG < 1 || (!TOPs && !POPs)) {
b0b546b3
GA
773 anum = PerlLIO_umask(022);
774 /* setting it to 022 between the two calls to umask avoids
775 * to have a window where the umask is set to 0 -- meaning
776 * that another thread could create world-writeable files. */
777 if (anum != 022)
778 (void)PerlLIO_umask(anum);
a0d0e21e
LW
779 }
780 else
6ad3d225 781 anum = PerlLIO_umask(POPi);
a0d0e21e
LW
782 TAINT_PROPER("umask");
783 XPUSHi(anum);
784#else
a0288114 785 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS
786 * Otherwise it's harmless and more useful to just return undef
787 * since 'group' and 'other' concepts probably don't exist here. */
58536d15 788 if (MAXARG >= 1 && (TOPs||POPs) && (POPi & 0700))
cea2e8a9 789 DIE(aTHX_ "umask not implemented");
6b88bc9c 790 XPUSHs(&PL_sv_undef);
a0d0e21e
LW
791#endif
792 RETURN;
793}
794
795PP(pp_binmode)
796{
27da23d5 797 dVAR; dSP;
a0d0e21e
LW
798 GV *gv;
799 IO *io;
760ac839 800 PerlIO *fp;
a0714e2c 801 SV *discp = NULL;
a0d0e21e
LW
802
803 if (MAXARG < 1)
804 RETPUSHUNDEF;
60382766 805 if (MAXARG > 1) {
16fe6d59 806 discp = POPs;
60382766 807 }
a0d0e21e 808
159b6efe 809 gv = MUTABLE_GV(POPs);
9c9f25b8 810 io = GvIO(gv);
4592e6ca 811
9c9f25b8 812 if (io) {
a5e1d062 813 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 814 if (mg) {
bc0c81ca
NC
815 /* This takes advantage of the implementation of the varargs
816 function, which I don't think that the optimiser will be able to
817 figure out. Although, as it's a static function, in theory it
818 could. */
3e0cb5de 819 return Perl_tied_method(aTHX_ SV_CONST(BINMODE), SP, MUTABLE_SV(io), mg,
d682515d
NC
820 G_SCALAR|TIED_METHOD_MORTALIZE_NOT_NEEDED,
821 discp ? 1 : 0, discp);
a79db61d 822 }
4592e6ca 823 }
a0d0e21e 824
9c9f25b8 825 if (!io || !(fp = IoIFP(io))) {
51087808 826 report_evil_fh(gv);
b5fe5ca2 827 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC
828 RETPUSHUNDEF;
829 }
a0d0e21e 830
40d98b49 831 PUTBACK;
f0a78170 832 {
a79b25b7
VP
833 STRLEN len = 0;
834 const char *d = NULL;
835 int mode;
836 if (discp)
837 d = SvPV_const(discp, len);
838 mode = mode_from_discipline(d, len);
f0a78170
NC
839 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
840 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
841 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
842 SPAGAIN;
843 RETPUSHUNDEF;
844 }
845 }
846 SPAGAIN;
847 RETPUSHYES;
848 }
849 else {
850 SPAGAIN;
851 RETPUSHUNDEF;
38af81ff 852 }
40d98b49 853 }
a0d0e21e
LW
854}
855
856PP(pp_tie)
857{
27da23d5 858 dVAR; dSP; dMARK;
a0d0e21e 859 HV* stash;
07822e36 860 GV *gv = NULL;
a0d0e21e 861 SV *sv;
1df70142 862 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 863 const char *methname;
14befaf4 864 int how = PERL_MAGIC_tied;
e336de0d 865 U32 items;
c4420975 866 SV *varsv = *++MARK;
a0d0e21e 867
6b05c17a
NIS
868 switch(SvTYPE(varsv)) {
869 case SVt_PVHV:
aec0c0cc
FC
870 {
871 HE *entry;
6b05c17a 872 methname = "TIEHASH";
aec0c0cc
FC
873 if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) {
874 HvLAZYDEL_off(varsv);
875 hv_free_ent((HV *)varsv, entry);
876 }
85fbaab2 877 HvEITER_set(MUTABLE_HV(varsv), 0);
6b05c17a 878 break;
aec0c0cc 879 }
6b05c17a
NIS
880 case SVt_PVAV:
881 methname = "TIEARRAY";
ce65bc73
FC
882 if (!AvREAL(varsv)) {
883 if (!AvREIFY(varsv))
884 Perl_croak(aTHX_ "Cannot tie unreifiable array");
885 av_clear((AV *)varsv);
886 AvREIFY_off(varsv);
887 AvREAL_on(varsv);
888 }
6b05c17a
NIS
889 break;
890 case SVt_PVGV:
13be902c 891 case SVt_PVLV:
8bb5f786 892 if (isGV_with_GP(varsv) && !SvFAKE(varsv)) {
6e592b3a
BM
893 methname = "TIEHANDLE";
894 how = PERL_MAGIC_tiedscalar;
895 /* For tied filehandles, we apply tiedscalar magic to the IO
896 slot of the GP rather than the GV itself. AMS 20010812 */
897 if (!GvIOp(varsv))
898 GvIOp(varsv) = newIO();
ad64d0ec 899 varsv = MUTABLE_SV(GvIOp(varsv));
6e592b3a
BM
900 break;
901 }
13733cde
FC
902 if (SvTYPE(varsv) == SVt_PVLV && LvTYPE(varsv) == 'y') {
903 vivify_defelem(varsv);
904 varsv = LvTARG(varsv);
905 }
6e592b3a 906 /* FALL THROUGH */
6b05c17a
NIS
907 default:
908 methname = "TIESCALAR";
14befaf4 909 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS
910 break;
911 }
e336de0d 912 items = SP - MARK++;
a91d1d42 913 if (sv_isobject(*MARK)) { /* Calls GET magic. */
d343c3ef 914 ENTER_with_name("call_TIE");
e788e7d3 915 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 916 PUSHMARK(SP);
eb160463 917 EXTEND(SP,(I32)items);
e336de0d
GS
918 while (items--)
919 PUSHs(*MARK++);
920 PUTBACK;
864dbfa3 921 call_method(methname, G_SCALAR);
301e8125 922 }
6b05c17a 923 else {
086d2913
NC
924 /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO"
925 * will attempt to invoke IO::File::TIEARRAY, with (best case) the
926 * wrong error message, and worse case, supreme action at a distance.
927 * (Sorry obfuscation writers. You're not going to be given this one.)
6b05c17a 928 */
4886938f
BF
929 stash = gv_stashsv(*MARK, 0);
930 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d 931 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
a91d1d42 932 methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no));
6b05c17a 933 }
d343c3ef 934 ENTER_with_name("call_TIE");
e788e7d3 935 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 936 PUSHMARK(SP);
eb160463 937 EXTEND(SP,(I32)items);
e336de0d
GS
938 while (items--)
939 PUSHs(*MARK++);
940 PUTBACK;
ad64d0ec 941 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
6b05c17a 942 }
a0d0e21e
LW
943 SPAGAIN;
944
945 sv = TOPs;
d3acc0f7 946 POPSTACK;
a0d0e21e 947 if (sv_isobject(sv)) {
33c27489 948 sv_unmagic(varsv, how);
ae21d580 949 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 950 if (varsv == SvRV(sv) &&
d87ebaca
YST
951 (SvTYPE(varsv) == SVt_PVAV ||
952 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH
953 Perl_croak(aTHX_
954 "Self-ties of arrays and hashes are not supported");
a0714e2c 955 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
a0d0e21e 956 }
d343c3ef 957 LEAVE_with_name("call_TIE");
3280af22 958 SP = PL_stack_base + markoff;
a0d0e21e
LW
959 PUSHs(sv);
960 RETURN;
961}
962
963PP(pp_untie)
964{
27da23d5 965 dVAR; dSP;
5b468f54 966 MAGIC *mg;
33c27489 967 SV *sv = POPs;
1df70142 968 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 969 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 970
ca0d4ed9 971 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54
AMS
972 RETPUSHYES;
973
13733cde
FC
974 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
975 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
976
65eba18f 977 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 978 SV * const obj = SvRV(SvTIED_obj(sv, mg));
fa2b88e0 979 if (obj) {
c4420975 980 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
0bd48802 981 CV *cv;
c4420975 982 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0 983 PUSHMARK(SP);
c33ef3ac 984 PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg));
6e449a3a 985 mXPUSHi(SvREFCNT(obj) - 1);
fa2b88e0 986 PUTBACK;
d343c3ef 987 ENTER_with_name("call_UNTIE");
ad64d0ec 988 call_sv(MUTABLE_SV(cv), G_VOID);
d343c3ef 989 LEAVE_with_name("call_UNTIE");
fa2b88e0
JS
990 SPAGAIN;
991 }
a2a5de95
NC
992 else if (mg && SvREFCNT(obj) > 1) {
993 Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE),
994 "untie attempted while %"UVuf" inner references still exist",
995 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 996 }
cbdc8872
PP
997 }
998 }
38193a09 999 sv_unmagic(sv, how) ;
55497cff 1000 RETPUSHYES;
a0d0e21e
LW
1001}
1002
c07a80fd
PP
1003PP(pp_tied)
1004{
97aff369 1005 dVAR;
39644a26 1006 dSP;
1b6737cc 1007 const MAGIC *mg;
33c27489 1008 SV *sv = POPs;
1df70142 1009 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 1010 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54 1011
4be76e1f 1012 if (isGV_with_GP(sv) && !SvFAKE(sv) && !(sv = MUTABLE_SV(GvIOp(sv))))
5b468f54 1013 RETPUSHUNDEF;
c07a80fd 1014
13733cde
FC
1015 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y' &&
1016 !(sv = defelem_target(sv, NULL))) RETPUSHUNDEF;
1017
155aba94 1018 if ((mg = SvTIED_mg(sv, how))) {
dc456155 1019 PUSHs(SvTIED_obj(sv, mg));
33c27489 1020 RETURN;
c07a80fd 1021 }
c07a80fd
PP
1022 RETPUSHUNDEF;
1023}
1024
a0d0e21e
LW
1025PP(pp_dbmopen)
1026{
27da23d5 1027 dVAR; dSP;
a0d0e21e
LW
1028 dPOPPOPssrl;
1029 HV* stash;
07822e36 1030 GV *gv = NULL;
a0d0e21e 1031
85fbaab2 1032 HV * const hv = MUTABLE_HV(POPs);
84bafc02 1033 SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP);
da51bb9b 1034 stash = gv_stashsv(sv, 0);
8ebc5c01 1035 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 1036 PUTBACK;
864dbfa3 1037 require_pv("AnyDBM_File.pm");
a0d0e21e 1038 SPAGAIN;
eff494dd 1039 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 1040 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW
1041 }
1042
57d3b86d 1043 ENTER;
924508f0 1044 PUSHMARK(SP);
6b05c17a 1045
924508f0 1046 EXTEND(SP, 5);
a0d0e21e
LW
1047 PUSHs(sv);
1048 PUSHs(left);
1049 if (SvIV(right))
6e449a3a 1050 mPUSHu(O_RDWR|O_CREAT);
a0d0e21e 1051 else
480e0d3c 1052 {
6e449a3a 1053 mPUSHu(O_RDWR);
480e0d3c
FC
1054 if (!SvOK(right)) right = &PL_sv_no;
1055 }
a0d0e21e 1056 PUSHs(right);
57d3b86d 1057 PUTBACK;
ad64d0ec 1058 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
1059 SPAGAIN;
1060
1061 if (!sv_isobject(TOPs)) {
924508f0
GS
1062 SP--;
1063 PUSHMARK(SP);
a0d0e21e
LW
1064 PUSHs(sv);
1065 PUSHs(left);
6e449a3a 1066 mPUSHu(O_RDONLY);
a0d0e21e 1067 PUSHs(right);
a0d0e21e 1068 PUTBACK;
ad64d0ec 1069 call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR);
a0d0e21e
LW
1070 SPAGAIN;
1071 }
1072
6b05c17a 1073 if (sv_isobject(TOPs)) {
ad64d0ec
NC
1074 sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied);
1075 sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0);
6b05c17a 1076 }
a0d0e21e
LW
1077 LEAVE;
1078 RETURN;
1079}
1080
a0d0e21e
LW
1081PP(pp_sselect)
1082{
a0d0e21e 1083#ifdef HAS_SELECT
97aff369 1084 dVAR; dSP; dTARGET;
eb578fdb
KW
1085 I32 i;
1086 I32 j;
1087 char *s;
1088 SV *sv;
65202027 1089 NV value;
a0d0e21e
LW
1090 I32 maxlen = 0;
1091 I32 nfound;
1092 struct timeval timebuf;
1093 struct timeval *tbuf = &timebuf;
1094 I32 growsize;
1095 char *fd_sets[4];
1096#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1097 I32 masksize;
1098 I32 offset;
1099 I32 k;
1100
1101# if BYTEORDER & 0xf0000
1102# define ORDERBYTE (0x88888888 - BYTEORDER)
1103# else
1104# define ORDERBYTE (0x4444 - BYTEORDER)
1105# endif
1106
1107#endif
1108
1109 SP -= 4;
1110 for (i = 1; i <= 3; i++) {
c4420975 1111 SV * const sv = SP[i];
9d6d5a79 1112 SvGETMAGIC(sv);
15547071
GA
1113 if (!SvOK(sv))
1114 continue;
ba3062ae
FC
1115 if (SvREADONLY(sv)) {
1116 if (!(SvPOK(sv) && SvCUR(sv) == 0))
cb077ed2 1117 Perl_croak_no_modify();
ba3062ae
FC
1118 }
1119 else if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0);
4ef2275c 1120 if (!SvPOK(sv)) {
9d6d5a79
FC
1121 if (!SvPOKp(sv))
1122 Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
1123 "Non-string passed as bitmask");
1124 SvPV_force_nomg_nolen(sv); /* force string conversion */
4ef2275c 1125 }
729c079f 1126 j = SvCUR(sv);
a0d0e21e
LW
1127 if (maxlen < j)
1128 maxlen = j;
1129 }
1130
5ff3f7a4 1131/* little endians can use vecs directly */
e366b469 1132#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1133# ifdef NFDBITS
a0d0e21e 1134
5ff3f7a4
GS
1135# ifndef NBBY
1136# define NBBY 8
1137# endif
a0d0e21e
LW
1138
1139 masksize = NFDBITS / NBBY;
5ff3f7a4 1140# else
a0d0e21e 1141 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1142# endif
a0d0e21e
LW
1143 Zero(&fd_sets[0], 4, char*);
1144#endif
1145
ad517f75
MHM
1146# if SELECT_MIN_BITS == 1
1147 growsize = sizeof(fd_set);
1148# else
1149# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1150# undef SELECT_MIN_BITS
1151# define SELECT_MIN_BITS __FD_SETSIZE
1152# endif
e366b469
PG
1153 /* If SELECT_MIN_BITS is greater than one we most probably will want
1154 * to align the sizes with SELECT_MIN_BITS/8 because for example
1155 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1156 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1157 * on (sets/tests/clears bits) is 32 bits. */
1158 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG
1159# endif
1160
a0d0e21e 1161 sv = SP[4];
90eaaf02 1162 SvGETMAGIC(sv);
a0d0e21e 1163 if (SvOK(sv)) {
90eaaf02 1164 value = SvNV_nomg(sv);
a0d0e21e
LW
1165 if (value < 0.0)
1166 value = 0.0;
1167 timebuf.tv_sec = (long)value;
65202027 1168 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW
1169 timebuf.tv_usec = (long)(value * 1000000.0);
1170 }
1171 else
4608196e 1172 tbuf = NULL;
a0d0e21e
LW
1173
1174 for (i = 1; i <= 3; i++) {
1175 sv = SP[i];
15547071 1176 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW
1177 fd_sets[i] = 0;
1178 continue;
1179 }
4ef2275c 1180 assert(SvPOK(sv));
a0d0e21e
LW
1181 j = SvLEN(sv);
1182 if (j < growsize) {
1183 Sv_Grow(sv, growsize);
a0d0e21e 1184 }
c07a80fd
PP
1185 j = SvCUR(sv);
1186 s = SvPVX(sv) + j;
1187 while (++j <= growsize) {
1188 *s++ = '\0';
1189 }
1190
a0d0e21e
LW
1191#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1192 s = SvPVX(sv);
a02a5408 1193 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW
1194 for (offset = 0; offset < growsize; offset += masksize) {
1195 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1196 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1197 }
1198#else
1199 fd_sets[i] = SvPVX(sv);
1200#endif
1201 }
1202
dc4c69d9
JH
1203#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1204 /* Can't make just the (void*) conditional because that would be
1205 * cpp #if within cpp macro, and not all compilers like that. */
1206 nfound = PerlSock_select(
1207 maxlen * 8,
1208 (Select_fd_set_t) fd_sets[1],
1209 (Select_fd_set_t) fd_sets[2],
1210 (Select_fd_set_t) fd_sets[3],
1211 (void*) tbuf); /* Workaround for compiler bug. */
1212#else
6ad3d225 1213 nfound = PerlSock_select(
a0d0e21e
LW
1214 maxlen * 8,
1215 (Select_fd_set_t) fd_sets[1],
1216 (Select_fd_set_t) fd_sets[2],
1217 (Select_fd_set_t) fd_sets[3],
1218 tbuf);
dc4c69d9 1219#endif
a0d0e21e
LW
1220 for (i = 1; i <= 3; i++) {
1221 if (fd_sets[i]) {
1222 sv = SP[i];
1223#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1224 s = SvPVX(sv);
1225 for (offset = 0; offset < growsize; offset += masksize) {
1226 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1227 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1228 }
1229 Safefree(fd_sets[i]);
1230#endif
1231 SvSETMAGIC(sv);
1232 }
1233 }
1234
4189264e 1235 PUSHi(nfound);
a0d0e21e 1236 if (GIMME == G_ARRAY && tbuf) {
65202027
DS
1237 value = (NV)(timebuf.tv_sec) +
1238 (NV)(timebuf.tv_usec) / 1000000.0;
6e449a3a 1239 mPUSHn(value);
a0d0e21e
LW
1240 }
1241 RETURN;
1242#else
cea2e8a9 1243 DIE(aTHX_ "select not implemented");
a0d0e21e
LW
1244#endif
1245}
1246
8226a3d7
NC
1247/*
1248=for apidoc setdefout
1249
1250Sets PL_defoutgv, the default file handle for output, to the passed in
1251typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference
1252count of the passed in typeglob is increased by one, and the reference count
1253of the typeglob that PL_defoutgv points to is decreased by one.
1254
1255=cut
1256*/
1257
4633a7c4 1258void
864dbfa3 1259Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1260{
97aff369 1261 dVAR;
9a9bb270
FC
1262 PERL_ARGS_ASSERT_SETDEFOUT;
1263 SvREFCNT_inc_simple_void_NN(gv);
ef8d46e8 1264 SvREFCNT_dec(PL_defoutgv);
3280af22 1265 PL_defoutgv = gv;
4633a7c4
LW
1266}
1267
a0d0e21e
LW
1268PP(pp_select)
1269{
97aff369 1270 dVAR; dSP; dTARGET;
4633a7c4 1271 HV *hv;
159b6efe 1272 GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL;
099be4f1 1273 GV * egv = GvEGVx(PL_defoutgv);
0df2568b 1274 GV * const *gvp;
4633a7c4 1275
4633a7c4 1276 if (!egv)
3280af22 1277 egv = PL_defoutgv;
099be4f1 1278 hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL;
0df2568b 1279 gvp = hv && HvENAME(hv)
204263bc
FC
1280 ? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE)
1281 : NULL;
0df2568b 1282 if (gvp && *gvp == egv) {
bd61b366 1283 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
f86702cc 1284 XPUSHTARG;
0df2568b
FC
1285 }
1286 else {
ad64d0ec 1287 mXPUSHs(newRV(MUTABLE_SV(egv)));
4633a7c4
LW
1288 }
1289
1290 if (newdefout) {
ded8aa31
GS
1291 if (!GvIO(newdefout))
1292 gv_IOadd(newdefout);
4633a7c4
LW
1293 setdefout(newdefout);
1294 }
1295
a0d0e21e
LW
1296 RETURN;
1297}
1298
1299PP(pp_getc)
1300{
27da23d5 1301 dVAR; dSP; dTARGET;
30901a8a
FC
1302 GV * const gv =
1303 MAXARG==0 || (!TOPs && !POPs) ? PL_stdingv : MUTABLE_GV(POPs);
9c9f25b8 1304 IO *const io = GvIO(gv);
2ae324a7 1305
ac3697cd
NC
1306 if (MAXARG == 0)
1307 EXTEND(SP, 1);
1308
9c9f25b8 1309 if (io) {
a5e1d062 1310 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1311 if (mg) {
0240605e 1312 const U32 gimme = GIMME_V;
3e0cb5de 1313 Perl_tied_method(aTHX_ SV_CONST(GETC), SP, MUTABLE_SV(io), mg, gimme, 0);
0240605e
NC
1314 if (gimme == G_SCALAR) {
1315 SPAGAIN;
a79db61d 1316 SvSetMagicSV_nosteal(TARG, TOPs);
0240605e
NC
1317 }
1318 return NORMAL;
a79db61d 1319 }
2ae324a7 1320 }
90133b69 1321 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
51087808 1322 if (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
831e4cc3 1323 report_evil_fh(gv);
b5fe5ca2 1324 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1325 RETPUSHUNDEF;
90133b69 1326 }
bbce6d69 1327 TAINT;
76f68e9b 1328 sv_setpvs(TARG, " ");
9bc64814 1329 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS
1330 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1331 /* Find out how many bytes the char needs */
aa07b2f6 1332 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS
1333 if (len > 1) {
1334 SvGROW(TARG,len+1);
1335 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1336 SvCUR_set(TARG,1+len);
1337 }
1338 SvUTF8_on(TARG);
1339 }
a0d0e21e
LW
1340 PUSHTARG;
1341 RETURN;
1342}
1343
76e3520e 1344STATIC OP *
cea2e8a9 1345S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1346{
27da23d5 1347 dVAR;
eb578fdb 1348 PERL_CONTEXT *cx;
f54cb97a 1349 const I32 gimme = GIMME_V;
a0d0e21e 1350
7918f24d
NC
1351 PERL_ARGS_ASSERT_DOFORM;
1352
7b190374
NC
1353 if (cv && CvCLONE(cv))
1354 cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv))));
1355
a0d0e21e
LW
1356 ENTER;
1357 SAVETMPS;
1358
146174a9 1359 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
10067d9a 1360 PUSHFORMAT(cx, retop);
f32c7e86
FC
1361 if (CvDEPTH(cv) >= 2) {
1362 PERL_STACK_OVERFLOW_CHECK();
1363 pad_push(CvPADLIST(cv), CvDEPTH(cv));
1364 }
fd617465 1365 SAVECOMPPAD();
f32c7e86 1366 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
a0d0e21e 1367
4633a7c4 1368 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW
1369 return CvSTART(cv);
1370}
1371
1372PP(pp_enterwrite)
1373{
97aff369 1374 dVAR;
39644a26 1375 dSP;
eb578fdb
KW
1376 GV *gv;
1377 IO *io;
a0d0e21e 1378 GV *fgv;
07822e36
JH
1379 CV *cv = NULL;
1380 SV *tmpsv = NULL;
a0d0e21e 1381
2addaaf3 1382 if (MAXARG == 0) {
3280af22 1383 gv = PL_defoutgv;
2addaaf3
NC
1384 EXTEND(SP, 1);
1385 }
a0d0e21e 1386 else {
159b6efe 1387 gv = MUTABLE_GV(POPs);
a0d0e21e 1388 if (!gv)
3280af22 1389 gv = PL_defoutgv;
a0d0e21e 1390 }
a0d0e21e
LW
1391 io = GvIO(gv);
1392 if (!io) {
1393 RETPUSHNO;
1394 }
1395 if (IoFMT_GV(io))
1396 fgv = IoFMT_GV(io);
1397 else
1398 fgv = gv;
1399
2d1ebc9b 1400 assert(fgv);
a79db61d 1401
a0d0e21e 1402 cv = GvFORM(fgv);
a0d0e21e 1403 if (!cv) {
10edeb5d 1404 tmpsv = sv_newmortal();
f4a7049d 1405 gv_efullname4(tmpsv, fgv, NULL, FALSE);
2d1ebc9b 1406 DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv));
a0d0e21e 1407 }
44a8e56a 1408 IoFLAGS(io) &= ~IOf_DIDTOP;
8e4ecf23 1409 RETURNOP(doform(cv,gv,PL_op->op_next));
a0d0e21e
LW
1410}
1411
1412PP(pp_leavewrite)
1413{
27da23d5 1414 dVAR; dSP;
f9c764c5 1415 GV * const gv = cxstack[cxstack_ix].blk_format.gv;
eb578fdb 1416 IO * const io = GvIOp(gv);
8b8cacda 1417 PerlIO *ofp;
760ac839 1418 PerlIO *fp;
8772537c
AL
1419 SV **newsp;
1420 I32 gimme;
eb578fdb 1421 PERL_CONTEXT *cx;
8f89e5a9 1422 OP *retop;
a0d0e21e 1423
8b8cacda 1424 if (!io || !(ofp = IoOFP(io)))
1425 goto forget_top;
1426
760ac839 1427 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1428 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
8b8cacda 1429
3280af22
NIS
1430 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1431 PL_formtarget != PL_toptarget)
a0d0e21e 1432 {
4633a7c4
LW
1433 GV *fgv;
1434 CV *cv;
a0d0e21e
LW
1435 if (!IoTOP_GV(io)) {
1436 GV *topgv;
a0d0e21e
LW
1437
1438 if (!IoTOP_NAME(io)) {
1b6737cc 1439 SV *topname;
a0d0e21e
LW
1440 if (!IoFMT_NAME(io))
1441 IoFMT_NAME(io) = savepv(GvNAME(gv));
d0c0e7dd
FC
1442 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%"HEKf"_TOP",
1443 HEKfARG(GvNAME_HEK(gv))));
f776e3cd 1444 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
748a9306 1445 if ((topgv && GvFORM(topgv)) ||
fafc274c 1446 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
2e0de35c 1447 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1448 else
89529cee 1449 IoTOP_NAME(io) = savepvs("top");
a0d0e21e 1450 }
f776e3cd 1451 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
a0d0e21e 1452 if (!topgv || !GvFORM(topgv)) {
b929a54b 1453 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW
1454 goto forget_top;
1455 }
1456 IoTOP_GV(io) = topgv;
1457 }
748a9306
LW
1458 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1459 I32 lines = IoLINES_LEFT(io);
504618e9 1460 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD
1461 if (lines <= 0) /* Yow, header didn't even fit!!! */
1462 goto forget_top;
748a9306
LW
1463 while (lines-- > 0) {
1464 s = strchr(s, '\n');
1465 if (!s)
1466 break;
1467 s++;
1468 }
1469 if (s) {
f54cb97a 1470 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1471 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS
1472 do_print(PL_formtarget, ofp);
1473 SvCUR_set(PL_formtarget, save);
3280af22
NIS
1474 sv_chop(PL_formtarget, s);
1475 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW
1476 }
1477 }
a0d0e21e 1478 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
f6dfc736 1479 do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp);
a0d0e21e
LW
1480 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1481 IoPAGE(io)++;
3280af22 1482 PL_formtarget = PL_toptarget;
748a9306 1483 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4 1484 fgv = IoTOP_GV(io);
636013b3 1485 assert(fgv); /* IoTOP_GV(io) should have been set above */
4633a7c4 1486 cv = GvFORM(fgv);
1df70142
AL
1487 if (!cv) {
1488 SV * const sv = sv_newmortal();
bd61b366 1489 gv_efullname4(sv, fgv, NULL, FALSE);
44b7e78a 1490 DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv));
4633a7c4 1491 }
43cd5cb7 1492 return doform(cv, gv, PL_op);
a0d0e21e
LW
1493 }
1494
1495 forget_top:
3280af22 1496 POPBLOCK(cx,PL_curpm);
8f89e5a9 1497 retop = cx->blk_sub.retop;
25375124 1498 POPFORMAT(cx);
43cd5cb7 1499 SP = newsp; /* ignore retval of formline */
a0d0e21e
LW
1500 LEAVE;
1501
c782dc1d
FC
1502 if (!io || !(fp = IoOFP(io))) {
1503 if (io && IoIFP(io))
7716c5c5 1504 report_wrongway_fh(gv, '<');
c521cf7c 1505 else
7716c5c5 1506 report_evil_fh(gv);
3280af22 1507 PUSHs(&PL_sv_no);
a0d0e21e
LW
1508 }
1509 else {
3280af22 1510 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
a2a5de95 1511 Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1512 }
d75029d0 1513 if (!do_print(PL_formtarget, fp))
3280af22 1514 PUSHs(&PL_sv_no);
a0d0e21e 1515 else {
3280af22
NIS
1516 FmLINES(PL_formtarget) = 0;
1517 SvCUR_set(PL_formtarget, 0);
1518 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1519 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1520 (void)PerlIO_flush(fp);
3280af22 1521 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1522 }
1523 }
3280af22 1524 PL_formtarget = PL_bodytarget;
29033a8a 1525 PERL_UNUSED_VAR(gimme);
8e4ecf23 1526 RETURNOP(retop);
a0d0e21e
LW
1527}
1528
1529PP(pp_prtf)
1530{
27da23d5 1531 dVAR; dSP; dMARK; dORIGMARK;
760ac839 1532 PerlIO *fp;
a0d0e21e 1533
159b6efe
NC
1534 GV * const gv
1535 = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv;
9c9f25b8 1536 IO *const io = GvIO(gv);
46fc3d4c 1537
87385d72
FC
1538 /* Treat empty list as "" */
1539 if (MARK == SP) XPUSHs(&PL_sv_no);
1540
9c9f25b8 1541 if (io) {
a5e1d062 1542 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d
AL
1543 if (mg) {
1544 if (MARK == ORIGMARK) {
1545 MEXTEND(SP, 1);
1546 ++MARK;
1547 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1548 ++SP;
1549 }
3e0cb5de 1550 return Perl_tied_method(aTHX_ SV_CONST(PRINTF), mark - 1, MUTABLE_SV(io),
d682515d
NC
1551 mg,
1552 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1553 sp - mark);
a79db61d 1554 }
46fc3d4c
PP
1555 }
1556
9c9f25b8 1557 if (!io) {
51087808 1558 report_evil_fh(gv);
93189314 1559 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW
1560 goto just_say_no;
1561 }
1562 else if (!(fp = IoOFP(io))) {
7716c5c5
NC
1563 if (IoIFP(io))
1564 report_wrongway_fh(gv, '<');
1565 else if (ckWARN(WARN_CLOSED))
1566 report_evil_fh(gv);
93189314 1567 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW
1568 goto just_say_no;
1569 }
1570 else {
c7bd8b84 1571 SV *sv = sv_newmortal();
a0d0e21e
LW
1572 do_sprintf(sv, SP - MARK, MARK + 1);
1573 if (!do_print(sv, fp))
1574 goto just_say_no;
1575
1576 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1577 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW
1578 goto just_say_no;
1579 }
a0d0e21e 1580 SP = ORIGMARK;
3280af22 1581 PUSHs(&PL_sv_yes);
a0d0e21e
LW
1582 RETURN;
1583
1584 just_say_no:
a0d0e21e 1585 SP = ORIGMARK;
3280af22 1586 PUSHs(&PL_sv_undef);
a0d0e21e
LW
1587 RETURN;
1588}
1589
c07a80fd
PP
1590PP(pp_sysopen)
1591{
97aff369 1592 dVAR;
39644a26 1593 dSP;
de5e49e1 1594 const int perm = (MAXARG > 3 && (TOPs || POPs)) ? POPi : 0666;
1df70142 1595 const int mode = POPi;
1b6737cc 1596 SV * const sv = POPs;
159b6efe 1597 GV * const gv = MUTABLE_GV(POPs);
1b6737cc 1598 STRLEN len;
c07a80fd 1599
4592e6ca 1600 /* Need TIEHANDLE method ? */
1b6737cc 1601 const char * const tmps = SvPV_const(sv, len);
e62f0680 1602 /* FIXME? do_open should do const */
4608196e 1603 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
c07a80fd 1604 IoLINES(GvIOp(gv)) = 0;
3280af22 1605 PUSHs(&PL_sv_yes);
c07a80fd
PP
1606 }
1607 else {
3280af22 1608 PUSHs(&PL_sv_undef);
c07a80fd
PP
1609 }
1610 RETURN;
1611}
1612
a0d0e21e
LW
1613PP(pp_sysread)
1614{
27da23d5 1615 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
0b423688 1616 SSize_t offset;
a0d0e21e
LW
1617 IO *io;
1618 char *buffer;
0b423688 1619 STRLEN orig_size;
5b54f415 1620 SSize_t length;
eb5c063a 1621 SSize_t count;
748a9306 1622 SV *bufsv;
a0d0e21e 1623 STRLEN blen;
eb5c063a 1624 int fp_utf8;
1dd30107
NC
1625 int buffer_utf8;
1626 SV *read_target;
eb5c063a
NIS
1627 Size_t got = 0;
1628 Size_t wanted;
1d636c13 1629 bool charstart = FALSE;
87330c3c
JH
1630 STRLEN charskip = 0;
1631 STRLEN skip = 0;
a0d0e21e 1632
159b6efe 1633 GV * const gv = MUTABLE_GV(*++MARK);
5b468f54 1634 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1635 && gv && (io = GvIO(gv)) )
137443ea 1636 {
a5e1d062 1637 const MAGIC *const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
1b6737cc 1638 if (mg) {
3e0cb5de 1639 return Perl_tied_method(aTHX_ SV_CONST(READ), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
1640 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1641 sp - mark);
1b6737cc 1642 }
2ae324a7
PP
1643 }
1644
a0d0e21e
LW
1645 if (!gv)
1646 goto say_undef;
748a9306 1647 bufsv = *++MARK;
ff68c719 1648 if (! SvOK(bufsv))
76f68e9b 1649 sv_setpvs(bufsv, "");
a0d0e21e 1650 length = SvIVx(*++MARK);
4bac9ae4
CS
1651 if (length < 0)
1652 DIE(aTHX_ "Negative length");
748a9306 1653 SETERRNO(0,0);
a0d0e21e
LW
1654 if (MARK < SP)
1655 offset = SvIVx(*++MARK);
1656 else
1657 offset = 0;
1658 io = GvIO(gv);
b5fe5ca2 1659 if (!io || !IoIFP(io)) {
51087808 1660 report_evil_fh(gv);
b5fe5ca2 1661 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1662 goto say_undef;
b5fe5ca2 1663 }
0064a8a9 1664 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1665 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1666 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1667 SvUTF8_on(bufsv);
9b9d7ce8 1668 buffer_utf8 = 0;
7d59b7e4
NIS
1669 }
1670 else {
1671 buffer = SvPV_force(bufsv, blen);
1dd30107 1672 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4 1673 }
4bac9ae4 1674 if (DO_UTF8(bufsv)) {
3f914778 1675 blen = sv_len_utf8_nomg(bufsv);
4bac9ae4 1676 }
7d59b7e4 1677
d0965105
JH
1678 charstart = TRUE;
1679 charskip = 0;
87330c3c 1680 skip = 0;
4bac9ae4 1681 wanted = length;
d0965105 1682
a0d0e21e 1683#ifdef HAS_SOCKET
533c011a 1684 if (PL_op->op_type == OP_RECV) {
0b423688 1685 Sock_size_t bufsize;
46fc3d4c 1686 char namebuf[MAXPATHLEN];
b5afd346 1687#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
490ab354
JH
1688 bufsize = sizeof (struct sockaddr_in);
1689#else
46fc3d4c 1690 bufsize = sizeof namebuf;
490ab354 1691#endif
abf95952
IZ
1692#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1693 if (bufsize >= 256)
1694 bufsize = 255;
1695#endif
eb160463 1696 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1697 /* 'offset' means 'flags' here */
eb5c063a 1698 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
10edeb5d 1699 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1700 if (count < 0)
a0d0e21e 1701 RETPUSHUNDEF;
8eb023a9
DM
1702 /* MSG_TRUNC can give oversized count; quietly lose it */
1703 if (count > length)
1704 count = length;
eb5c063a 1705 SvCUR_set(bufsv, count);
748a9306
LW
1706 *SvEND(bufsv) = '\0';
1707 (void)SvPOK_only(bufsv);
eb5c063a
NIS
1708 if (fp_utf8)
1709 SvUTF8_on(bufsv);
748a9306 1710 SvSETMAGIC(bufsv);
aac0dd9a 1711 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1712 if (!(IoFLAGS(io) & IOf_UNTAINT))
1713 SvTAINTED_on(bufsv);
a0d0e21e 1714 SP = ORIGMARK;
46fc3d4c 1715 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW
1716 PUSHs(TARG);
1717 RETURN;
1718 }
a0d0e21e 1719#endif
bbce6d69 1720 if (offset < 0) {
0b423688 1721 if (-offset > (SSize_t)blen)
cea2e8a9 1722 DIE(aTHX_ "Offset outside string");
bbce6d69
PP
1723 offset += blen;
1724 }
eb5c063a
NIS
1725 if (DO_UTF8(bufsv)) {
1726 /* convert offset-as-chars to offset-as-bytes */
d5f981bb 1727 if (offset >= (SSize_t)blen)
6960c29a
CH
1728 offset += SvCUR(bufsv) - blen;
1729 else
1730 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS
1731 }
1732 more_bytes:
0b423688 1733 orig_size = SvCUR(bufsv);
1dd30107
NC
1734 /* Allocating length + offset + 1 isn't perfect in the case of reading
1735 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1736 unduly.
1737 (should be 2 * length + offset + 1, or possibly something longer if
1738 PL_encoding is true) */
eb160463 1739 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
0b423688
TC
1740 if (offset > 0 && offset > (SSize_t)orig_size) { /* Zero any newly allocated space */
1741 Zero(buffer+orig_size, offset-orig_size, char);
cd52b7b2 1742 }
eb5c063a 1743 buffer = buffer + offset;
1dd30107
NC
1744 if (!buffer_utf8) {
1745 read_target = bufsv;
1746 } else {
1747 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1748 concatenate it to the current buffer. */
1749
1750 /* Truncate the existing buffer to the start of where we will be
1751 reading to: */
1752 SvCUR_set(bufsv, offset);
1753
1754 read_target = sv_newmortal();
862a34c6 1755 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1756 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1757 }
eb5c063a 1758
533c011a 1759 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1760#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1761 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS
1762 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1763 buffer, length, 0);
a7092146
GS
1764 }
1765 else
1766#endif
1767 {
eb5c063a
NIS
1768 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1769 buffer, length);
a7092146 1770 }
a0d0e21e
LW
1771 }
1772 else
3b02c43c 1773 {
eb5c063a
NIS
1774 count = PerlIO_read(IoIFP(io), buffer, length);
1775 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1776 if (count == 0 && PerlIO_error(IoIFP(io)))
1777 count = -1;
3b02c43c 1778 }
eb5c063a 1779 if (count < 0) {
7716c5c5 1780 if (IoTYPE(io) == IoTYPE_WRONLY)
a5390457 1781 report_wrongway_fh(gv, '>');
a0d0e21e 1782 goto say_undef;
af8c498a 1783 }
aa07b2f6 1784 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC
1785 *SvEND(read_target) = '\0';
1786 (void)SvPOK_only(read_target);
0064a8a9 1787 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1788 /* Look at utf8 we got back and count the characters */
1df70142 1789 const char *bend = buffer + count;
eb5c063a 1790 while (buffer < bend) {
d0965105
JH
1791 if (charstart) {
1792 skip = UTF8SKIP(buffer);
1793 charskip = 0;
1794 }
1795 if (buffer - charskip + skip > bend) {
eb5c063a
NIS
1796 /* partial character - try for rest of it */
1797 length = skip - (bend-buffer);
aa07b2f6 1798 offset = bend - SvPVX_const(bufsv);
d0965105
JH
1799 charstart = FALSE;
1800 charskip += count;
eb5c063a
NIS
1801 goto more_bytes;
1802 }
1803 else {
1804 got++;
1805 buffer += skip;
d0965105
JH
1806 charstart = TRUE;
1807 charskip = 0;
eb5c063a
NIS
1808 }
1809 }
1810 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1811 provided amount read (count) was what was requested (length)
1812 */
1813 if (got < wanted && count == length) {
d0965105 1814 length = wanted - got;
aa07b2f6 1815 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS
1816 goto more_bytes;
1817 }
1818 /* return value is character count */
1819 count = got;
1820 SvUTF8_on(bufsv);
1821 }
1dd30107
NC
1822 else if (buffer_utf8) {
1823 /* Let svcatsv upgrade the bytes we read in to utf8.
1824 The buffer is a mortal so will be freed soon. */
1825 sv_catsv_nomg(bufsv, read_target);
1826 }
748a9306 1827 SvSETMAGIC(bufsv);
aac0dd9a 1828 /* This should not be marked tainted if the fp is marked clean */
bbce6d69
PP
1829 if (!(IoFLAGS(io) & IOf_UNTAINT))
1830 SvTAINTED_on(bufsv);
a0d0e21e 1831 SP = ORIGMARK;
eb5c063a 1832 PUSHi(count);
a0d0e21e
LW
1833 RETURN;
1834
1835 say_undef:
1836 SP = ORIGMARK;
1837 RETPUSHUNDEF;
1838}
1839
60504e18 1840PP(pp_syswrite)
a0d0e21e 1841{
27da23d5 1842 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
748a9306 1843 SV *bufsv;
83003860 1844 const char *buffer;
8c99d73e 1845 SSize_t retval;
a0d0e21e 1846 STRLEN blen;
c9cb0f41 1847 STRLEN orig_blen_bytes;
64a1bc8e 1848 const int op_type = PL_op->op_type;
c9cb0f41
NC
1849 bool doing_utf8;
1850 U8 *tmpbuf = NULL;
159b6efe 1851 GV *const gv = MUTABLE_GV(*++MARK);
91472ad4
NC
1852 IO *const io = GvIO(gv);
1853
1854 if (op_type == OP_SYSWRITE && io) {
a5e1d062 1855 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 1856 if (mg) {
a79db61d 1857 if (MARK == SP - 1) {
c8834ab7
TC
1858 SV *sv = *SP;
1859 mXPUSHi(sv_len(sv));
a79db61d
AL
1860 PUTBACK;
1861 }
1862
3e0cb5de 1863 return Perl_tied_method(aTHX_ SV_CONST(WRITE), mark - 1, MUTABLE_SV(io), mg,
d682515d
NC
1864 G_SCALAR | TIED_METHOD_ARGUMENTS_ON_STACK,
1865 sp - mark);
64a1bc8e 1866 }
1d603a67 1867 }
a0d0e21e
LW
1868 if (!gv)
1869 goto say_undef;
64a1bc8e 1870
748a9306 1871 bufsv = *++MARK;
64a1bc8e 1872
748a9306 1873 SETERRNO(0,0);
cf167416 1874 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
8c99d73e 1875 retval = -1;
51087808
NC
1876 if (io && IoIFP(io))
1877 report_wrongway_fh(gv, '<');
1878 else
1879 report_evil_fh(gv);
b5fe5ca2 1880 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS
1881 goto say_undef;
1882 }
1883
c9cb0f41
NC
1884 /* Do this first to trigger any overloading. */
1885 buffer = SvPV_const(bufsv, blen);
1886 orig_blen_bytes = blen;
1887 doing_utf8 = DO_UTF8(bufsv);
1888
7d59b7e4 1889 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7 1890 if (!SvUTF8(bufsv)) {
c9cb0f41
NC
1891 /* We don't modify the original scalar. */
1892 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1893 buffer = (char *) tmpbuf;
1894 doing_utf8 = TRUE;
1895 }
a0d0e21e 1896 }
c9cb0f41
NC
1897 else if (doing_utf8) {
1898 STRLEN tmplen = blen;
a79db61d 1899 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
c9cb0f41
NC
1900 if (!doing_utf8) {
1901 tmpbuf = result;
1902 buffer = (char *) tmpbuf;
1903 blen = tmplen;
1904 }
1905 else {
1906 assert((char *)result == buffer);
1907 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1908 }
7d59b7e4
NIS
1909 }
1910
e2712234 1911#ifdef HAS_SOCKET
7627e6d0 1912 if (op_type == OP_SEND) {
e2712234
NC
1913 const int flags = SvIVx(*++MARK);
1914 if (SP > MARK) {
1915 STRLEN mlen;
1916 char * const sockbuf = SvPVx(*++MARK, mlen);
1917 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1918 flags, (struct sockaddr *)sockbuf, mlen);
1919 }
1920 else {
1921 retval
1922 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1923 }
7627e6d0
NC
1924 }
1925 else
e2712234 1926#endif
7627e6d0 1927 {
c9cb0f41
NC
1928 Size_t length = 0; /* This length is in characters. */
1929 STRLEN blen_chars;
7d59b7e4 1930 IV offset;
c9cb0f41
NC
1931
1932 if (doing_utf8) {
1933 if (tmpbuf) {
1934 /* The SV is bytes, and we've had to upgrade it. */
1935 blen_chars = orig_blen_bytes;
1936 } else {
1937 /* The SV really is UTF-8. */
3f914778
FC
1938 /* Don't call sv_len_utf8 on a magical or overloaded
1939 scalar, as we might get back a different result. */
1940 blen_chars = sv_or_pv_len_utf8(bufsv, buffer, blen);
c9cb0f41
NC
1941 }
1942 } else {
1943 blen_chars = blen;
1944 }
1945
1946 if (MARK >= SP) {
1947 length = blen_chars;
1948 } else {
1949#if Size_t_size > IVSIZE
1950 length = (Size_t)SvNVx(*++MARK);
1951#else
1952 length = (Size_t)SvIVx(*++MARK);
1953#endif
4b0c4b6f
NC
1954 if ((SSize_t)length < 0) {
1955 Safefree(tmpbuf);
c9cb0f41 1956 DIE(aTHX_ "Negative length");
4b0c4b6f 1957 }
7d59b7e4 1958 }
c9cb0f41 1959
bbce6d69 1960 if (MARK < SP) {
a0d0e21e 1961 offset = SvIVx(*++MARK);
bbce6d69 1962 if (offset < 0) {
4b0c4b6f
NC
1963 if (-offset > (IV)blen_chars) {
1964 Safefree(tmpbuf);
cea2e8a9 1965 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1966 }
c9cb0f41 1967 offset += blen_chars;
3c946528 1968 } else if (offset > (IV)blen_chars) {
4b0c4b6f 1969 Safefree(tmpbuf);
cea2e8a9 1970 DIE(aTHX_ "Offset outside string");
4b0c4b6f 1971 }
bbce6d69 1972 } else
a0d0e21e 1973 offset = 0;
c9cb0f41
NC
1974 if (length > blen_chars - offset)
1975 length = blen_chars - offset;
1976 if (doing_utf8) {
1977 /* Here we convert length from characters to bytes. */
1978 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1979 /* Either we had to convert the SV, or the SV is magical, or
1980 the SV has overloading, in which case we can't or mustn't
1981 or mustn't call it again. */
1982
1983 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1984 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1985 } else {
1986 /* It's a real UTF-8 SV, and it's not going to change under
1987 us. Take advantage of any cache. */
1988 I32 start = offset;
1989 I32 len_I32 = length;
1990
1991 /* Convert the start and end character positions to bytes.
1992 Remember that the second argument to sv_pos_u2b is relative
1993 to the first. */
1994 sv_pos_u2b(bufsv, &start, &len_I32);
1995
1996 buffer += start;
1997 length = len_I32;
1998 }
7d59b7e4
NIS
1999 }
2000 else {
2001 buffer = buffer+offset;
2002 }
a7092146 2003#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 2004 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 2005 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 2006 buffer, length, 0);
a7092146
GS
2007 }
2008 else
2009#endif
2010 {
94e4c244 2011 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 2012 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 2013 buffer, length);
a7092146 2014 }
a0d0e21e 2015 }
c9cb0f41 2016
8c99d73e 2017 if (retval < 0)
a0d0e21e
LW
2018 goto say_undef;
2019 SP = ORIGMARK;
c9cb0f41 2020 if (doing_utf8)
f36eea10 2021 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
4b0c4b6f 2022
a79db61d 2023 Safefree(tmpbuf);
8c99d73e
GS
2024#if Size_t_size > IVSIZE
2025 PUSHn(retval);
2026#else
2027 PUSHi(retval);
2028#endif
a0d0e21e
LW
2029 RETURN;
2030
2031 say_undef:
a79db61d 2032 Safefree(tmpbuf);
a0d0e21e
LW
2033 SP = ORIGMARK;
2034 RETPUSHUNDEF;
2035}
2036
a0d0e21e
LW
2037PP(pp_eof)
2038{
27da23d5 2039 dVAR; dSP;
a0d0e21e 2040 GV *gv;
32e65323 2041 IO *io;
a5e1d062 2042 const MAGIC *mg;
bc0c81ca
NC
2043 /*
2044 * in Perl 5.12 and later, the additional parameter is a bitmask:
2045 * 0 = eof
2046 * 1 = eof(FH)
2047 * 2 = eof() <- ARGV magic
2048 *
2049 * I'll rely on the compiler's trace flow analysis to decide whether to
2050 * actually assign this out here, or punt it into the only block where it is
2051 * used. Doing it out here is DRY on the condition logic.
2052 */
2053 unsigned int which;
a0d0e21e 2054
bc0c81ca 2055 if (MAXARG) {
32e65323 2056 gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */
bc0c81ca
NC
2057 which = 1;
2058 }
b5f55170
NC
2059 else {
2060 EXTEND(SP, 1);
2061
bc0c81ca 2062 if (PL_op->op_flags & OPf_SPECIAL) {
b5f55170 2063 gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */
bc0c81ca
NC
2064 which = 2;
2065 }
2066 else {
b5f55170 2067 gv = PL_last_in_gv; /* eof */
bc0c81ca
NC
2068 which = 0;
2069 }
b5f55170 2070 }
32e65323
CS
2071
2072 if (!gv)
2073 RETPUSHNO;
2074
2075 if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) {
3e0cb5de 2076 return tied_method1(SV_CONST(EOF), SP, MUTABLE_SV(io), mg, newSVuv(which));
146174a9 2077 }
4592e6ca 2078
32e65323
CS
2079 if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */
2080 if (io && !IoIFP(io)) {
2081 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2082 IoLINES(io) = 0;
2083 IoFLAGS(io) &= ~IOf_START;
2084 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2085 if (GvSV(gv))
2086 sv_setpvs(GvSV(gv), "-");
2087 else
2088 GvSV(gv) = newSVpvs("-");
2089 SvSETMAGIC(GvSV(gv));
2090 }
2091 else if (!nextargv(gv))
2092 RETPUSHYES;
6136c704 2093 }
4592e6ca
NIS
2094 }
2095
32e65323 2096 PUSHs(boolSV(do_eof(gv)));
a0d0e21e
LW
2097 RETURN;
2098}
2099
2100PP(pp_tell)
2101{
27da23d5 2102 dVAR; dSP; dTARGET;
301e8125 2103 GV *gv;
5b468f54 2104 IO *io;
a0d0e21e 2105
b64a1294 2106 if (MAXARG != 0 && (TOPs || POPs))
159b6efe 2107 PL_last_in_gv = MUTABLE_GV(POPs);
ac3697cd
NC
2108 else
2109 EXTEND(SP, 1);
c4420975 2110 gv = PL_last_in_gv;
4592e6ca 2111
9c9f25b8
NC
2112 io = GvIO(gv);
2113 if (io) {
a5e1d062 2114 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2115 if (mg) {
3e0cb5de 2116 return tied_method0(SV_CONST(TELL), SP, MUTABLE_SV(io), mg);
a79db61d 2117 }
4592e6ca 2118 }
f4817f32 2119 else if (!gv) {
f03173f2
RGS
2120 if (!errno)
2121 SETERRNO(EBADF,RMS_IFI);
2122 PUSHi(-1);
2123 RETURN;
2124 }
4592e6ca 2125
146174a9
CB
2126#if LSEEKSIZE > IVSIZE
2127 PUSHn( do_tell(gv) );
2128#else
a0d0e21e 2129 PUSHi( do_tell(gv) );
146174a9 2130#endif
a0d0e21e
LW
2131 RETURN;
2132}
2133
137443ea
PP
2134PP(pp_sysseek)
2135{
27da23d5 2136 dVAR; dSP;
1df70142 2137 const int whence = POPi;
146174a9 2138#if LSEEKSIZE > IVSIZE
7452cf6a 2139 const Off_t offset = (Off_t)SvNVx(POPs);
146174a9 2140#else
7452cf6a 2141 const Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2142#endif
a0d0e21e 2143
159b6efe 2144 GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs);
9c9f25b8 2145 IO *const io = GvIO(gv);
4592e6ca 2146
9c9f25b8 2147 if (io) {
a5e1d062 2148 const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar);
a79db61d 2149 if (mg) {
cb50131a 2150#if LSEEKSIZE > IVSIZE
74f0b550 2151 SV *const offset_sv = newSVnv((NV) offset);
cb50131a 2152#else
74f0b550 2153 SV *const offset_sv = newSViv(offset);
cb50131a 2154#endif
bc0c81ca 2155
3e0cb5de 2156 return tied_method2(SV_CONST(SEEK), SP, MUTABLE_SV(io), mg, offset_sv,
d682515d 2157 newSViv(whence));
a79db61d 2158 }
4592e6ca
NIS
2159 }
2160
533c011a 2161 if (PL_op->op_type == OP_SEEK)
8903cb82
PP
2162 PUSHs(boolSV(do_seek(gv, offset, whence)));
2163 else {
0bcc34c2 2164 const Off_t sought = do_sysseek(gv, offset, whence);
b448e4fe 2165 if (sought < 0)
146174a9
CB
2166 PUSHs(&PL_sv_undef);
2167 else {
7452cf6a 2168 SV* const sv = sought ?
146174a9 2169#if LSEEKSIZE > IVSIZE
b448e4fe 2170 newSVnv((NV)sought)
146174a9 2171#else
b448e4fe 2172 newSViv(sought)
146174a9
CB
2173#endif
2174 : newSVpvn(zero_but_true, ZBTLEN);
6e449a3a 2175 mPUSHs(sv);
146174a9 2176 }
8903cb82 2177 }
a0d0e21e
LW
2178 RETURN;
2179}
2180
2181PP(pp_truncate)
2182{
97aff369 2183 dVAR;
39644a26 2184 dSP;
8c99d73e
GS
2185 /* There seems to be no consensus on the length type of truncate()
2186 * and ftruncate(), both off_t and size_t have supporters. In
2187 * general one would think that when using large files, off_t is
2188 * at least as wide as size_t, so using an off_t should be okay. */
2189 /* XXX Configure probe for the length type of *truncate() needed XXX */
0bcc34c2 2190 Off_t len;
a0d0e21e 2191
25342a55 2192#if Off_t_size > IVSIZE
0bcc34c2 2193 len = (Off_t)POPn;
8c99d73e 2194#else
0bcc34c2 2195 len = (Off_t)POPi;
8c99d73e
GS
2196#endif
2197 /* Checking for length < 0 is problematic as the type might or
301e8125 2198 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2199 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2200 SETERRNO(0,0);
d05c1ba0 2201 {
5e0adc2d 2202 SV * const sv = POPs;
d05c1ba0
JH
2203 int result = 1;
2204 GV *tmpgv;
090bf15b
SR
2205 IO *io;
2206
42409c40
FC
2207 if (PL_op->op_flags & OPf_SPECIAL
2208 ? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1)
2209 : !!(tmpgv = MAYBE_DEREF_GV(sv)) ) {
9c9f25b8
NC
2210 io = GvIO(tmpgv);
2211 if (!io)
090bf15b 2212 result = 0;
d05c1ba0 2213 else {
090bf15b 2214 PerlIO *fp;
090bf15b
SR
2215 do_ftruncate_io:
2216 TAINT_PROPER("truncate");
2217 if (!(fp = IoIFP(io))) {
2218 result = 0;
2219 }
2220 else {
2221 PerlIO_flush(fp);
cbdc8872 2222#ifdef HAS_TRUNCATE
090bf15b 2223 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2224#else
090bf15b 2225 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2226#endif
090bf15b
SR
2227 result = 0;
2228 }
d05c1ba0 2229 }
cbdc8872 2230 }
5e0adc2d 2231 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2232 io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */
090bf15b 2233 goto do_ftruncate_io;
5e0adc2d
FC
2234 }
2235 else {
2236 const char * const name = SvPV_nomg_const_nolen(sv);
d05c1ba0 2237 TAINT_PROPER("truncate");
cbdc8872 2238#ifdef HAS_TRUNCATE
d05c1ba0
JH
2239 if (truncate(name, len) < 0)
2240 result = 0;
cbdc8872 2241#else
d05c1ba0 2242 {
7452cf6a 2243 const int tmpfd = PerlLIO_open(name, O_RDWR);
d05c1ba0 2244
7452cf6a 2245 if (tmpfd < 0)
cbdc8872 2246 result = 0;
d05c1ba0
JH
2247 else {
2248 if (my_chsize(tmpfd, len) < 0)
2249 result = 0;
2250 PerlLIO_close(tmpfd);
2251 }
cbdc8872 2252 }
a0d0e21e 2253#endif
d05c1ba0 2254 }
a0d0e21e 2255
d05c1ba0
JH
2256 if (result)
2257 RETPUSHYES;
2258 if (!errno)
93189314 2259 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH
2260 RETPUSHUNDEF;
2261 }
a0d0e21e
LW
2262}
2263
a0d0e21e
LW
2264PP(pp_ioctl)
2265{
97aff369 2266 dVAR; dSP; dTARGET;
7452cf6a 2267 SV * const argsv = POPs;
1df70142 2268 const unsigned int func = POPu;
e1ec3a88 2269 const int optype = PL_op->op_type;
159b6efe 2270 GV * const gv = MUTABLE_GV(POPs);
4608196e 2271 IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2272 char *s;
324aa91a 2273 IV retval;
a0d0e21e 2274
748a9306 2275 if (!io || !argsv || !IoIFP(io)) {
51087808 2276 report_evil_fh(gv);
93189314 2277 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW
2278 RETPUSHUNDEF;
2279 }
2280
748a9306 2281 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2282 STRLEN len;
324aa91a 2283 STRLEN need;
748a9306 2284 s = SvPV_force(argsv, len);
324aa91a
HF
2285 need = IOCPARM_LEN(func);
2286 if (len < need) {
2287 s = Sv_Grow(argsv, need + 1);
2288 SvCUR_set(argsv, need);
a0d0e21e
LW
2289 }
2290
748a9306 2291 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW
2292 }
2293 else {
748a9306 2294 retval = SvIV(argsv);
c529f79d 2295 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW
2296 }
2297
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);
eb578fdb 2376 IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e
LW
2377 int fd;
2378
9c9f25b8 2379 if (!io) {
51087808 2380 report_evil_fh(gv);
5ee74a84 2381 if (io && IoIFP(io))
c289d2f7 2382 do_close(gv, FALSE);
93189314 2383 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW
2384 RETPUSHUNDEF;
2385 }
2386
57171420
BS
2387 if (IoIFP(io))
2388 do_close(gv, FALSE);
2389
a0d0e21e 2390 TAINT_PROPER("socket");
6ad3d225 2391 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW
2392 if (fd < 0)
2393 RETPUSHUNDEF;
460c8493
IZ
2394 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2395 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2396 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2397 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW
2398 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2399 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2400 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW
2401 RETPUSHUNDEF;
2402 }
8d2a6795
GS
2403#if defined(HAS_FCNTL) && defined(F_SETFD)
2404 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2405#endif
a0d0e21e
LW
2406
2407 RETPUSHYES;
a0d0e21e 2408}
7627e6d0 2409#endif
a0d0e21e
LW
2410
2411PP(pp_sockpair)
2412{
c95c94b1 2413#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
97aff369 2414 dVAR; dSP;
7452cf6a
AL
2415 const int protocol = POPi;
2416 const int type = POPi;
2417 const int domain = POPi;
159b6efe
NC
2418 GV * const gv2 = MUTABLE_GV(POPs);
2419 GV * const gv1 = MUTABLE_GV(POPs);
eb578fdb
KW
2420 IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2421 IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
a0d0e21e
LW
2422 int fd[2];
2423
9c9f25b8
NC
2424 if (!io1)
2425 report_evil_fh(gv1);
2426 if (!io2)
2427 report_evil_fh(gv2);
a0d0e21e 2428
46d2cc54 2429 if (io1 && IoIFP(io1))
dc0d0a5f 2430 do_close(gv1, FALSE);
46d2cc54 2431 if (io2 && IoIFP(io2))
dc0d0a5f 2432 do_close(gv2, FALSE);
57171420 2433
46d2cc54
NC
2434 if (!io1 || !io2)
2435 RETPUSHUNDEF;
2436
a0d0e21e 2437 TAINT_PROPER("socketpair");
6ad3d225 2438 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2439 RETPUSHUNDEF;
460c8493
IZ
2440 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2441 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2442 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ
2443 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2444 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2445 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2446 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW
2447 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2448 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2449 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW
2450 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2451 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2452 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW
2453 RETPUSHUNDEF;
2454 }
8d2a6795
GS
2455#if defined(HAS_FCNTL) && defined(F_SETFD)
2456 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2457 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2458#endif
a0d0e21e
LW
2459
2460 RETPUSHYES;
2461#else
cea2e8a9 2462 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW
2463#endif
2464}
2465
7627e6d0
NC
2466#ifdef HAS_SOCKET
2467
a0d0e21e
LW
2468PP(pp_bind)
2469{
97aff369 2470 dVAR; dSP;
7452cf6a 2471 SV * const addrsv = POPs;
349d4f2f
NC
2472 /* OK, so on what platform does bind modify addr? */
2473 const char *addr;
159b6efe 2474 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2475 IO * const io = GvIOn(gv);
a0d0e21e 2476 STRLEN len;
32b81f04 2477 const int op_type = PL_op->op_type;
a0d0e21e
LW
2478
2479 if (!io || !IoIFP(io))
2480 goto nuts;
2481
349d4f2f 2482 addr = SvPV_const(addrsv, len);
32b81f04
NC
2483 TAINT_PROPER(PL_op_desc[op_type]);
2484 if ((op_type == OP_BIND
2485 ? PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len)
2486 : PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len))
2487 >= 0)
a0d0e21e
LW
2488 RETPUSHYES;
2489 else
2490 RETPUSHUNDEF;
2491
2492nuts:
fbcda526 2493 report_evil_fh(gv);
93189314 2494 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2495 RETPUSHUNDEF;
a0d0e21e
LW
2496}
2497
2498PP(pp_listen)
2499{
97aff369 2500 dVAR; dSP;
7452cf6a 2501 const int backlog = POPi;
159b6efe 2502 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2503 IO * const io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2504
9c9f25b8 2505 if (!io || !IoIFP(io))
a0d0e21e
LW
2506 goto nuts;
2507
6ad3d225 2508 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW
2509 RETPUSHYES;
2510 else
2511 RETPUSHUNDEF;
2512
2513nuts:
fbcda526 2514 report_evil_fh(gv);
93189314 2515 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2516 RETPUSHUNDEF;
a0d0e21e
LW
2517}
2518
2519PP(pp_accept)
2520{
97aff369 2521 dVAR; dSP; dTARGET;
eb578fdb
KW
2522 IO *nstio;
2523 IO *gstio;
93d47a36 2524 char namebuf[MAXPATHLEN];
b5afd346 2525#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__)
93d47a36
JH
2526 Sock_size_t len = sizeof (struct sockaddr_in);
2527#else
2528 Sock_size_t len = sizeof namebuf;
2529#endif
159b6efe
NC
2530 GV * const ggv = MUTABLE_GV(POPs);
2531 GV * const ngv = MUTABLE_GV(POPs);
a0d0e21e
LW
2532 int fd;
2533
a0d0e21e
LW
2534 if (!ngv)
2535 goto badexit;
2536 if (!ggv)
2537 goto nuts;
2538
2539 gstio = GvIO(ggv);
2540 if (!gstio || !IoIFP(gstio))
2541 goto nuts;
2542
2543 nstio = GvIOn(ngv);
93d47a36 2544 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
e294cc5d
JH
2545#if defined(OEMVS)
2546 if (len == 0) {
2547 /* Some platforms indicate zero length when an AF_UNIX client is
2548 * not bound. Simulate a non-zero-length sockaddr structure in
2549 * this case. */
2550 namebuf[0] = 0; /* sun_len */
2551 namebuf[1] = AF_UNIX; /* sun_family */
2552 len = 2;
2553 }
2554#endif
2555
a0d0e21e
LW
2556 if (fd < 0)
2557 goto badexit;
a70048fb
AB
2558 if (IoIFP(nstio))
2559 do_close(ngv, FALSE);
460c8493
IZ
2560 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2561 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2562 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2563 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW
2564 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2565 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2566 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW
2567 goto badexit;
2568 }
8d2a6795
GS
2569#if defined(HAS_FCNTL) && defined(F_SETFD)
2570 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2571#endif
a0d0e21e 2572
381c1bae 2573#ifdef __SCO_VERSION__
93d47a36 2574 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2575#endif
ed79a026 2576
93d47a36 2577 PUSHp(namebuf, len);
a0d0e21e
LW
2578 RETURN;
2579
2580nuts:
fbcda526 2581 report_evil_fh(ggv);
93189314 2582 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2583
2584badexit:
2585 RETPUSHUNDEF;
2586
a0d0e21e
LW
2587}
2588
2589PP(pp_shutdown)
2590{
97aff369 2591 dVAR; dSP; dTARGET;
7452cf6a 2592 const int how = POPi;
159b6efe 2593 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2594 IO * const io = GvIOn(gv);
a0d0e21e
LW
2595
2596 if (!io || !IoIFP(io))
2597 goto nuts;
2598
6ad3d225 2599 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW
2600 RETURN;
2601
2602nuts:
fbcda526 2603 report_evil_fh(gv);
93189314 2604 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e 2605 RETPUSHUNDEF;
a0d0e21e
LW
2606}
2607
a0d0e21e
LW
2608PP(pp_ssockopt)
2609{
97aff369 2610 dVAR; dSP;
7452cf6a 2611 const int optype = PL_op->op_type;
561b68a9 2612 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
7452cf6a
AL
2613 const unsigned int optname = (unsigned int) POPi;
2614 const unsigned int lvl = (unsigned int) POPi;
159b6efe 2615 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2616 IO * const io = GvIOn(gv);
a0d0e21e 2617 int fd;
1e422769 2618 Sock_size_t len;
a0d0e21e 2619
a0d0e21e
LW
2620 if (!io || !IoIFP(io))
2621 goto nuts;
2622
760ac839 2623 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2624 switch (optype) {
2625 case OP_GSOCKOPT:
748a9306 2626 SvGROW(sv, 257);
a0d0e21e 2627 (void)SvPOK_only(sv);
748a9306
LW
2628 SvCUR_set(sv,256);
2629 *SvEND(sv) ='\0';
1e422769 2630 len = SvCUR(sv);
6ad3d225 2631 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2632 goto nuts2;
1e422769 2633 SvCUR_set(sv, len);
748a9306 2634 *SvEND(sv) ='\0';
a0d0e21e
LW
2635 PUSHs(sv);
2636 break;
2637 case OP_SSOCKOPT: {
1215b447
JH
2638#if defined(__SYMBIAN32__)
2639# define SETSOCKOPT_OPTION_VALUE_T void *
2640#else
2641# define SETSOCKOPT_OPTION_VALUE_T const char *
2642#endif
2643 /* XXX TODO: We need to have a proper type (a Configure probe,
2644 * etc.) for what the C headers think of the third argument of
2645 * setsockopt(), the option_value read-only buffer: is it
2646 * a "char *", or a "void *", const or not. Some compilers
2647 * don't take kindly to e.g. assuming that "char *" implicitly
2648 * promotes to a "void *", or to explicitly promoting/demoting
2649 * consts to non/vice versa. The "const void *" is the SUS
2650 * definition, but that does not fly everywhere for the above
2651 * reasons. */
2652 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769
PP
2653 int aint;
2654 if (SvPOKp(sv)) {
2d8e6c8d 2655 STRLEN l;
1215b447 2656 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2657 len = l;
1e422769 2658 }
56ee1660 2659 else {
a0d0e21e 2660 aint = (int)SvIV(sv);
1215b447 2661 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW
2662 len = sizeof(int);
2663 }
6ad3d225 2664 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2665 goto nuts2;
3280af22 2666 PUSHs(&PL_sv_yes);
a0d0e21e
LW
2667 }
2668 break;
2669 }
2670 RETURN;
2671
2672nuts:
fbcda526 2673 report_evil_fh(gv);
93189314 2674 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2675nuts2:
2676 RETPUSHUNDEF;
2677
a0d0e21e
LW
2678}
2679
a0d0e21e
LW
2680PP(pp_getpeername)
2681{
97aff369 2682 dVAR; dSP;
7452cf6a 2683 const int optype = PL_op->op_type;
159b6efe 2684 GV * const gv = MUTABLE_GV(POPs);
eb578fdb 2685 IO * const io = GvIOn(gv);
7452cf6a 2686 Sock_size_t len;
a0d0e21e
LW
2687 SV *sv;
2688 int fd;
a0d0e21e
LW
2689
2690 if (!io || !IoIFP(io))
2691 goto nuts;
2692
561b68a9 2693 sv = sv_2mortal(newSV(257));
748a9306 2694 (void)SvPOK_only(sv);
1e422769
PP
2695 len = 256;
2696 SvCUR_set(sv, len);
748a9306 2697 *SvEND(sv) ='\0';
760ac839 2698 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW
2699 switch (optype) {
2700 case OP_GETSOCKNAME:
6ad3d225 2701 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW
2702 goto nuts2;
2703 break;
2704 case OP_GETPEERNAME:
6ad3d225 2705 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2706 goto nuts2;
490ab354
JH
2707#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2708 {
2709 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";
2710 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2711 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2712 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2713 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2714 goto nuts2;
490ab354
JH
2715 }
2716 }
2717#endif
a0d0e21e
LW
2718 break;
2719 }
13826f2c
CS
2720#ifdef BOGUS_GETNAME_RETURN
2721 /* Interactive Unix, getpeername() and getsockname()
2722 does not return valid namelen */
1e422769
PP
2723 if (len == BOGUS_GETNAME_RETURN)
2724 len = sizeof(struct sockaddr);
13826f2c 2725#endif
1e422769 2726 SvCUR_set(sv, len);
748a9306 2727 *SvEND(sv) ='\0';
a0d0e21e
LW
2728 PUSHs(sv);
2729 RETURN;
2730
2731nuts:
fbcda526 2732 report_evil_fh(gv);
93189314 2733 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW
2734nuts2:
2735 RETPUSHUNDEF;
7627e6d0 2736}
a0d0e21e 2737
a0d0e21e 2738#endif
a0d0e21e
LW
2739
2740/* Stat calls. */
2741
a0d0e21e
LW
2742PP(pp_stat)
2743{
97aff369 2744 dVAR;
39644a26 2745 dSP;
10edeb5d 2746 GV *gv = NULL;
55dd8d50 2747 IO *io = NULL;
54310121 2748 I32 gimme;
a0d0e21e 2749 I32 max = 13;
109c43ed 2750 SV* sv;
a0d0e21e 2751
109c43ed
FC
2752 if (PL_op->op_flags & OPf_REF ? (gv = cGVOP_gv, 1)
2753 : !!(sv=POPs, gv = MAYBE_DEREF_GV(sv))) {
8a4e5b40 2754 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2755 if (gv != PL_defgv) {
5d329e6e 2756 do_fstat_warning_check:
a2a5de95 2757 Perl_ck_warner(aTHX_ packWARN(WARN_IO),
93fad930
FC
2758 "lstat() on filehandle%s%"SVf,
2759 gv ? " " : "",
2760 SVfARG(gv
bf29d05f
BF
2761 ? sv_2mortal(newSVhek(GvENAME_HEK(gv)))
2762 : &PL_sv_no));
5d3e98de 2763 } else if (PL_laststype != OP_LSTAT)
b042df57 2764 /* diag_listed_as: The stat preceding %s wasn't an lstat */
8a4e5b40 2765 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD
2766 }
2767
2dd78f96 2768 if (gv != PL_defgv) {
b8413ac3 2769 bool havefp;
0d5064f1 2770 do_fstat_have_io:
b8413ac3 2771 havefp = FALSE;
3280af22 2772 PL_laststype = OP_STAT;
0d5064f1 2773 PL_statgv = gv ? gv : (GV *)io;
76f68e9b 2774 sv_setpvs(PL_statname, "");
5228a96c 2775 if(gv) {
ad02613c 2776 io = GvIO(gv);
0d5064f1
FC
2777 }
2778 if (io) {
5228a96c
SP
2779 if (IoIFP(io)) {
2780 PL_laststatval =
2781 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
8080e3c8 2782 havefp = TRUE;
5228a96c 2783 } else if (IoDIRP(io)) {
5228a96c 2784 PL_laststatval =
3497a01f 2785 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
8080e3c8 2786 havefp = TRUE;
5228a96c
SP
2787 } else {
2788 PL_laststatval = -1;
2789 }
5228a96c 2790 }
05bb32d2 2791 else PL_laststatval = -1;
daa30a68 2792 if (PL_laststatval < 0 && !havefp) report_evil_fh(gv);
5228a96c
SP
2793 }
2794
9ddeeac9 2795 if (PL_laststatval < 0) {
a0d0e21e 2796 max = 0;
9ddeeac9 2797 }
a0d0e21e
LW
2798 }
2799 else {
109c43ed 2800 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
a45c7426 2801 io = MUTABLE_IO(SvRV(sv));
ad02613c
SP
2802 if (PL_op->op_type == OP_LSTAT)
2803 goto do_fstat_warning_check;
2804 goto do_fstat_have_io;
2805 }
2806
4bac9ae4 2807 SvTAINTED_off(PL_statname); /* previous tainting irrelevant */
109c43ed 2808 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
a0714e2c 2809 PL_statgv = NULL;
533c011a
NIS
2810 PL_laststype = PL_op->op_type;
2811 if (PL_op->op_type == OP_LSTAT)
0510663f 2812 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2813 else
0510663f 2814 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2815 if (PL_laststatval < 0) {
0510663f 2816 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2817 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW
2818 max = 0;
2819 }
2820 }
2821
54310121
PP
2822 gimme = GIMME_V;
2823 if (gimme != G_ARRAY) {
2824 if (gimme != G_VOID)
2825 XPUSHs(boolSV(max));
2826 RETURN;
a0d0e21e
LW
2827 }
2828 if (max) {
36477c24
PP
2829 EXTEND(SP, max);
2830 EXTEND_MORTAL(max);
6e449a3a 2831 mPUSHi(PL_statcache.st_dev);
8d8cba88
TC
2832#if ST_INO_SIZE > IVSIZE
2833 mPUSHn(PL_statcache.st_ino);
2834#else
2835# if ST_INO_SIGN <= 0
6e449a3a 2836 mPUSHi(PL_statcache.st_ino);
8d8cba88
TC
2837# else
2838 mPUSHu(PL_statcache.st_ino);
2839# endif
2840#endif
6e449a3a
MHM
2841 mPUSHu(PL_statcache.st_mode);
2842 mPUSHu(PL_statcache.st_nlink);
dfff4baf
BF
2843
2844 sv_setuid(PUSHmortal, PL_statcache.st_uid);
2845 sv_setgid(PUSHmortal, PL_statcache.st_gid);
2846
cbdc8872 2847#ifdef USE_STAT_RDEV
6e449a3a 2848 mPUSHi(PL_statcache.st_rdev);
cbdc8872 2849#else
84bafc02 2850 PUSHs(newSVpvs_flags("", SVs_TEMP));
cbdc8872 2851#endif
146174a9 2852#if Off_t_size > IVSIZE
6e449a3a 2853 mPUSHn(PL_statcache.st_size);
146174a9 2854#else
6e449a3a 2855 mPUSHi(PL_statcache.st_size);
146174a9 2856#endif
cbdc8872 2857#ifdef BIG_TIME
6e449a3a
MHM
2858 mPUSHn(PL_statcache.st_atime);
2859 mPUSHn(PL_statcache.st_mtime);
2860 mPUSHn(PL_statcache.st_ctime);
cbdc8872 2861#else
6e449a3a
MHM
2862 mPUSHi(PL_statcache.st_atime);
2863 mPUSHi(PL_statcache.st_mtime);
2864 mPUSHi(PL_statcache.st_ctime);
cbdc8872 2865#endif
a0d0e21e 2866#ifdef USE_STAT_BLOCKS
6e449a3a
MHM
2867 mPUSHu(PL_statcache.st_blksize);
2868 mPUSHu(PL_statcache.st_blocks);
a0d0e21e 2869#else
84bafc02
NC
2870 PUSHs(newSVpvs_flags("", SVs_TEMP));
2871 PUSHs(newSVpvs_flags("", SVs_TEMP));
a0d0e21e
LW
2872#endif
2873 }
2874 RETURN;
2875}
2876
6c48f025
NC
2877/* All filetest ops avoid manipulating the perl stack pointer in their main
2878 bodies (since commit d2c4d2d1e22d3125), and return using either
2879 S_ft_return_false() or S_ft_return_true(). These two helper functions are
2880 the only two which manipulate the perl stack. To ensure that no stack
2881 manipulation macros are used, the filetest ops avoid defining a local copy
2882 of the stack pointer with dSP. */
2883
8db8f6b6
FC
2884/* If the next filetest is stacked up with this one
2885 (PL_op->op_private & OPpFT_STACKING), we leave
2886 the original argument on the stack for success,
2887 and skip the stacked operators on failure.
2888 The next few macros/functions take care of this.
2889*/
2890
2891static OP *
9a6b02e8 2892S_ft_return_false(pTHX_ SV *ret) {
8db8f6b6 2893 OP *next = NORMAL;
697f9d37
NC
2894 dSP;
2895
226b9201 2896 if (PL_op->op_flags & OPf_REF) XPUSHs(ret);
8db8f6b6
FC
2897 else SETs(ret);
2898 PUTBACK;
697f9d37 2899
9a6b02e8
NC
2900 if (PL_op->op_private & OPpFT_STACKING) {
2901 while (OP_IS_FILETEST(next->op_type)
2902 && next->op_private & OPpFT_STACKED)
2903 next = next->op_next;
2904 }
8db8f6b6
FC
2905 return next;
2906}
2907
07ed4d4b
NC
2908PERL_STATIC_INLINE OP *
2909S_ft_return_true(pTHX_ SV *ret) {
2910 dSP;
2911 if (PL_op->op_flags & OPf_REF)
2912 XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret));
2913 else if (!(PL_op->op_private & OPpFT_STACKING))
2914 SETs(ret);
2915 PUTBACK;
2916 return NORMAL;
2917}
8db8f6b6 2918
48d023d6
NC
2919#define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no)
2920#define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef)
2921#define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes)
8db8f6b6 2922
6f1401dc 2923#define tryAMAGICftest_MG(chr) STMT_START { \
d2f67720 2924 if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \
8db8f6b6
FC
2925 && PL_op->op_flags & OPf_KIDS) { \
2926 OP *next = S_try_amagic_ftest(aTHX_ chr); \
2927 if (next) return next; \
2928 } \
6f1401dc
DM
2929 } STMT_END
2930
8db8f6b6 2931STATIC OP *
6f1401dc
DM
2932S_try_amagic_ftest(pTHX_ char chr) {
2933 dVAR;
d2f67720 2934 SV *const arg = *PL_stack_sp;
6f1401dc
DM
2935
2936 assert(chr != '?');
c5780028 2937 if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg);
6f1401dc 2938
d2f67720 2939 if (SvAMAGIC(arg))
6f1401dc
DM
2940 {
2941 const char tmpchr = chr;
6f1401dc
DM
2942 SV * const tmpsv = amagic_call(arg,
2943 newSVpvn_flags(&tmpchr, 1, SVs_TEMP),
2944 ftest_amg, AMGf_unary);
2945
2946 if (!tmpsv)
8db8f6b6 2947 return NULL;
6f1401dc 2948
48d023d6
NC
2949 return SvTRUE(tmpsv)
2950 ? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv);
6f1401dc 2951 }
8db8f6b6 2952 return NULL;
6f1401dc
DM
2953}
2954
2955
a0d0e21e
LW
2956PP(pp_ftrread)
2957{
97aff369 2958 dVAR;
9cad6237 2959 I32 result;
af9e49b4
NC
2960 /* Not const, because things tweak this below. Not bool, because there's
2961 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2962#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2963 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2964 /* Giving some sort of initial value silences compilers. */
2965# ifdef R_OK
2966 int access_mode = R_OK;
2967# else
2968 int access_mode = 0;
2969# endif
5ff3f7a4 2970#else
af9e49b4
NC
2971 /* access_mode is never used, but leaving use_access in makes the
2972 conditional compiling below much clearer. */
2973 I32 use_access = 0;
5ff3f7a4 2974#endif
2dcac756 2975 Mode_t stat_mode = S_IRUSR;
a0d0e21e 2976
af9e49b4 2977 bool effective = FALSE;
07fe7c6a 2978 char opchar = '?';
af9e49b4 2979
7fb13887
BM
2980 switch (PL_op->op_type) {
2981 case OP_FTRREAD: opchar = 'R'; break;
2982 case OP_FTRWRITE: opchar = 'W'; break;
2983 case OP_FTREXEC: opchar = 'X'; break;
2984 case OP_FTEREAD: opchar = 'r'; break;
2985 case OP_FTEWRITE: opchar = 'w'; break;
2986 case OP_FTEEXEC: opchar = 'x'; break;
2987 }
6f1401dc 2988 tryAMAGICftest_MG(opchar);
7fb13887 2989
af9e49b4
NC
2990 switch (PL_op->op_type) {
2991 case OP_FTRREAD:
2992#if !(defined(HAS_ACCESS) && defined(R_OK))
2993 use_access = 0;
2994#endif
2995 break;
2996
2997 case OP_FTRWRITE:
5ff3f7a4 2998#if defined(HAS_ACCESS) && defined(W_OK)
af9e49b4 2999 access_mode = W_OK;
5ff3f7a4 3000#else
af9e49b4 3001 use_access = 0;
5ff3f7a4 3002#endif
af9e49b4
NC
3003 stat_mode = S_IWUSR;
3004 break;
a0d0e21e 3005
af9e49b4 3006 case OP_FTREXEC:
5ff3f7a4 3007#if defined(HAS_ACCESS) && defined(X_OK)
af9e49b4 3008 access_mode = X_OK;
5ff3f7a4 3009#else
af9e49b4 3010 use_access = 0;
5ff3f7a4 3011#endif
af9e49b4
NC
3012 stat_mode = S_IXUSR;
3013 break;
a0d0e21e 3014
af9e49b4 3015 case OP_FTEWRITE:
faee0e31 3016#ifdef PERL_EFF_ACCESS
af9e49b4 3017 access_mode = W_OK;
5ff3f7a4 3018#endif
af9e49b4 3019 stat_mode = S_IWUSR;
7fb13887 3020 /* fall through */
a0d0e21e 3021
af9e49b4
NC
3022 case OP_FTEREAD:
3023#ifndef PERL_EFF_ACCESS
3024 use_access = 0;
3025#endif
3026 effective = TRUE;
3027 break;
3028
af9e49b4 3029 case OP_FTEEXEC:
faee0e31 3030#ifdef PERL_EFF_ACCESS
b376053d 3031 access_mode = X_OK;
5ff3f7a4 3032#else
af9e49b4 3033 use_access = 0;
5ff3f7a4 3034#endif
af9e49b4
NC
3035 stat_mode = S_IXUSR;
3036 effective = TRUE;
3037 break;
3038 }
a0d0e21e 3039
af9e49b4
NC
3040 if (use_access) {
3041#if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
d2f67720 3042 const char *name = SvPV_nolen(*PL_stack_sp);
af9e49b4
NC
3043 if (effective) {
3044# ifdef PERL_EFF_ACCESS
3045 result = PERL_EFF_ACCESS(name, access_mode);
3046# else
3047 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3048 OP_NAME(PL_op));
3049# endif
3050 }
3051 else {
3052# ifdef HAS_ACCESS
3053 result = access(name, access_mode);
3054# else
3055 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3056# endif
3057 }
5ff3f7a4 3058 if (result == 0)
d2c4d2d1 3059 FT_RETURNYES;
5ff3f7a4 3060 if (result < 0)
d2c4d2d1
FC
3061 FT_RETURNUNDEF;
3062 FT_RETURNNO;
af9e49b4 3063#endif
22865c03 3064 }
af9e49b4 3065
40c852de 3066 result = my_stat_flags(0);
a0d0e21e 3067 if (result < 0)
8db8f6b6 3068 FT_RETURNUNDEF;
af9e49b4 3069 if (cando(stat_mode, effective, &PL_statcache))
8db8f6b6
FC
3070 FT_RETURNYES;
3071 FT_RETURNNO;
a0d0e21e
LW
3072}
3073
3074PP(pp_ftis)
3075{
97aff369 3076 dVAR;
fbb0b3b3 3077 I32 result;
d7f0a2f4 3078 const int op_type = PL_op->op_type;
07fe7c6a 3079 char opchar = '?';
07fe7c6a
BM
3080
3081 switch (op_type) {
3082 case OP_FTIS: opchar = 'e'; break;
3083 case OP_FTSIZE: opchar = 's'; break;
3084 case OP_FTMTIME: opchar = 'M'; break;
3085 case OP_FTCTIME: opchar = 'C'; break;
3086 case OP_FTATIME: opchar = 'A'; break;
3087 }
6f1401dc 3088 tryAMAGICftest_MG(opchar);
07fe7c6a 3089
40c852de 3090 result = my_stat_flags(0);
a0d0e21e 3091 if (result < 0)
8db8f6b6 3092 FT_RETURNUNDEF;
d7f0a2f4 3093 if (op_type == OP_FTIS)
8db8f6b6 3094 FT_RETURNYES;
957b0e1d 3095 {
d7f0a2f4
NC
3096 /* You can't dTARGET inside OP_FTIS, because you'll get
3097 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3098 dTARGET;
d7f0a2f4 3099 switch (op_type) {
957b0e1d
NC
3100 case OP_FTSIZE:
3101#if Off_t_size > IVSIZE
8db8f6b6 3102 sv_setnv(TARG, (NV)PL_statcache.st_size);
957b0e1d 3103#else
8db8f6b6 3104 sv_setiv(TARG, (IV)PL_statcache.st_size);
957b0e1d
NC
3105#endif
3106 break;
3107 case OP_FTMTIME:
8db8f6b6
FC
3108 sv_setnv(TARG,
3109 ((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 );
957b0e1d
NC
3110 break;
3111 case OP_FTATIME:
8db8f6b6
FC
3112 sv_setnv(TARG,
3113 ((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 );
957b0e1d
NC
3114 break;
3115 case OP_FTCTIME:
8db8f6b6
FC
3116 sv_setnv(TARG,
3117 ((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 );
957b0e1d
NC
3118 break;
3119 }
8db8f6b6 3120 SvSETMAGIC(TARG);
48d023d6
NC
3121 return SvTRUE_nomg(TARG)
3122 ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG);
957b0e1d 3123 }
a0d0e21e
LW
3124}
3125
a0d0e21e
LW
3126PP(pp_ftrowned)
3127{
97aff369 3128 dVAR;
fbb0b3b3 3129 I32 result;
07fe7c6a 3130 char opchar = '?';
17ad201a 3131
7fb13887
BM
3132 switch (PL_op->op_type) {
3133 case OP_FTROWNED: opchar = 'O'; break;
3134 case OP_FTEOWNED: opchar = 'o'; break;
3135 case OP_FTZERO: opchar = 'z'; break;
3136 case OP_FTSOCK: opchar = 'S'; break;
3137 case OP_FTCHR: opchar = 'c'; break;
3138 case OP_FTBLK: opchar = 'b'; break;
3139 case OP_FTFILE: opchar = 'f'; break;
3140 case OP_FTDIR: opchar = 'd'; break;
3141 case OP_FTPIPE: opchar = 'p'; break;
3142 case OP_FTSUID: opchar = 'u'; break;
3143 case OP_FTSGID: opchar = 'g'; break;
3144 case OP_FTSVTX: opchar = 'k'; break;
3145 }
6f1401dc 3146 tryAMAGICftest_MG(opchar);
7fb13887 3147
17ad201a
NC
3148 /* I believe that all these three are likely to be defined on most every
3149 system these days. */
3150#ifndef S_ISUID
c410dd6a 3151 if(PL_op->op_type == OP_FTSUID) {
8db8f6b6 3152 FT_RETURNNO;
c410dd6a 3153 }
17ad201a
NC
3154#endif
3155#ifndef S_ISGID
c410dd6a 3156 if(PL_op->op_type == OP_FTSGID) {
8db8f6b6 3157 FT_RETURNNO;
c410dd6a 3158 }
17ad201a
NC
3159#endif
3160#ifndef S_ISVTX
c410dd6a 3161 if(PL_op->op_type == OP_FTSVTX) {
8db8f6b6 3162 FT_RETURNNO;
c410dd6a 3163 }
17ad201a
NC
3164#endif
3165
40c852de 3166 result = my_stat_flags(0);
a0d0e21e 3167 if (result < 0)
8db8f6b6 3168 FT_RETURNUNDEF;
f1cb2d48
NC
3169 switch (PL_op->op_type) {
3170 case OP_FTROWNED:
985213f2 3171 if (PL_statcache.st_uid == PerlProc_getuid())
8db8f6b6 3172 FT_RETURNYES;
f1cb2d48
NC
3173 break;
3174 case OP_FTEOWNED:
985213f2 3175 if (PL_statcache.st_uid == PerlProc_geteuid())
8db8f6b6 3176 FT_RETURNYES;
f1cb2d48
NC
3177 break;
3178 case OP_FTZERO:
3179 if (PL_statcache.st_size == 0)
8db8f6b6 3180 FT_RETURNYES;
f1cb2d48
NC
3181 break;
3182 case OP_FTSOCK:
3183 if (S_ISSOCK(PL_statcache.st_mode))
8db8f6b6 3184 FT_RETURNYES;
f1cb2d48
NC
3185 break;
3186 case OP_FTCHR:
3187 if (S_ISCHR(PL_statcache.st_mode))
8db8f6b6 3188 FT_RETURNYES;
f1cb2d48
NC
3189 break;
3190 case OP_FTBLK:
3191 if (S_ISBLK(PL_statcache.st_mode))
8db8f6b6 3192 FT_RETURNYES;
f1cb2d48
NC
3193 break;
3194 case OP_FTFILE:
3195 if (S_ISREG(PL_statcache.st_mode))
8db8f6b6 3196 FT_RETURNYES;
f1cb2d48
NC
3197 break;
3198 case OP_FTDIR:
3199 if (S_ISDIR(PL_statcache.st_mode))
8db8f6b6 3200 FT_RETURNYES;
f1cb2d48
NC
3201 break;
3202 case OP_FTPIPE:
3203 if (S_ISFIFO(PL_statcache.st_mode))
8db8f6b6 3204 FT_RETURNYES;
f1cb2d48 3205 break;
a0d0e21e 3206#ifdef S_ISUID
17ad201a
NC
3207 case OP_FTSUID:
3208 if (PL_statcache.st_mode & S_ISUID)
8db8f6b6 3209 FT_RETURNYES;
17ad201a 3210 break;
a0d0e21e 3211#endif
a0d0e21e 3212#ifdef S_ISGID
17ad201a
NC
3213 case OP_FTSGID:
3214 if (PL_statcache.st_mode & S_ISGID)
8db8f6b6 3215 FT_RETURNYES;
17ad201a
NC
3216 break;
3217#endif
3218#ifdef S_ISVTX
3219 case OP_FTSVTX:
3220 if (PL_statcache.st_mode & S_ISVTX)
8db8f6b6 3221 FT_RETURNYES;
17ad201a 3222 break;
a0d0e21e 3223#endif
17ad201a 3224 }
8db8f6b6 3225 FT_RETURNNO;
a0d0e21e
LW
3226}
3227
17ad201a 3228PP(pp_ftlink)
a0d0e21e 3229{
97aff369 3230 dVAR;
500ff13f 3231 I32 result;
07fe7c6a 3232
6f1401dc 3233 tryAMAGICftest_MG('l');
40c852de 3234 result = my_lstat_flags(0);
500ff13f 3235
a0d0e21e 3236 if (result < 0)
8db8f6b6 3237 FT_RETURNUNDEF;
17ad201a 3238 if (S_ISLNK(PL_statcache.st_mode))
8db8f6b6
FC
3239 FT_RETURNYES;
3240 FT_RETURNNO;
a0d0e21e
LW
3241}
3242
3243PP(pp_fttty)
3244{
97aff369 3245 dVAR;
a0d0e21e
LW
3246 int fd;
3247 GV *gv;
0784aae0 3248 char *name = NULL;
40c852de 3249 STRLEN namelen;
fb73857a 3250
6f1401dc 3251 tryAMAGICftest_MG('t');
07fe7c6a 3252
533c011a 3253 if (PL_op->op_flags & OPf_REF)
146174a9 3254 gv = cGVOP_gv;
e5e154d2 3255 else {
d2f67720 3256 SV *tmpsv = *PL_stack_sp;
e5e154d2 3257 if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) {
40c852de
DM
3258 name = SvPV_nomg(tmpsv, namelen);
3259 gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO);
e5e154d2 3260 }
40c852de 3261 }
fb73857a 3262
a0d0e21e 3263 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3264 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
b6cb94c5 3265 else if (name && isDIGIT(*name))
40c852de 3266 fd = atoi(name);
a0d0e21e 3267 else
8db8f6b6 3268 FT_RETURNUNDEF;
6ad3d225 3269 if (PerlLIO_isatty(fd))
8db8f6b6
FC
3270 FT_RETURNYES;
3271 FT_RETURNNO;
a0d0e21e
LW
3272}
3273
a0d0e21e
LW
3274PP(pp_fttext)
3275{
97aff369 3276 dVAR;
a0d0e21e 3277 I32 i;
b66f3475 3278 SSize_t len;
a0d0e21e
LW
3279 I32 odd = 0;
3280 STDCHAR tbuf[512];
eb578fdb
KW
3281 STDCHAR *s;
3282 IO *io;
3283 SV *sv = NULL;
5f05dabc 3284 GV *gv;
146174a9 3285 PerlIO *fp;
a0d0e21e 3286
6f1401dc 3287 tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B');
07fe7c6a 3288
533c011a 3289 if (PL_op->op_flags & OPf_REF)
146174a9 3290 gv = cGVOP_gv;
d2c4d2d1 3291 else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t))
8db8f6b6 3292 == OPpFT_STACKED)
ba8182f8 3293 gv = PL_defgv;
d2c4d2d1 3294 else {
d2f67720 3295 sv = *PL_stack_sp;
d2c4d2d1 3296 gv = MAYBE_DEREF_GV_nomg(sv);
8db8f6b6 3297 }
5f05dabc
PP
3298
3299 if (gv) {
3280af22
NIS
3300 if (gv == PL_defgv) {
3301 if (PL_statgv)
bd5f6c01
FC
3302 io = SvTYPE(PL_statgv) == SVt_PVIO
3303 ? (IO *)PL_statgv
3304 : GvIO(PL_statgv);
a0d0e21e 3305 else {
a0d0e21e
LW
3306 goto really_filename;
3307 }
3308 }
3309 else {
3280af22 3310 PL_statgv = gv;
76f68e9b 3311 sv_setpvs(PL_statname, "");
3280af22 3312 io = GvIO(PL_statgv);
a0d0e21e 3313 }
eb4c377a 3314 PL_laststatval = -1;
21a64c3e 3315 PL_laststype = OP_STAT;
a0d0e21e 3316 if (io && IoIFP(io)) {
5f05dabc 3317 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3318 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS
3319 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3320 if (PL_laststatval < 0)
8db8f6b6 3321 FT_RETURNUNDEF;
9cbac4c7 3322 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3323 if (PL_op->op_type == OP_FTTEXT)
8db8f6b6 3324 FT_RETURNNO;
a0d0e21e 3325 else
8db8f6b6 3326 FT_RETURNYES;
9cbac4c7 3327 }
a20bf0c3 3328 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3329 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3330 if (i != EOF)
760ac839 3331 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3332 }
a20bf0c3 3333 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
8db8f6b6 3334 FT_RETURNYES;
a20bf0c3
JH
3335 len = PerlIO_get_bufsiz(IoIFP(io));
3336 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW
3337 /* sfio can have large buffers - limit to 512 */
3338 if (len > 512)
3339 len = 512;
a0d0e21e
LW
3340 }
3341 else {
2ad48547 3342 SETERRNO(EBADF,RMS_IFI);
3f12cff4 3343 report_evil_fh(gv);
93189314 3344 SETERRNO(EBADF,RMS_IFI);
8db8f6b6 3345 FT_RETURNUNDEF;
a0d0e21e
LW
3346 }
3347 }
3348 else {
81e9306f 3349 sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv));
5f05dabc 3350 really_filename:
a0714e2c 3351 PL_statgv = NULL;
aa07b2f6 3352 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
ad2d99e3
FC
3353 if (!gv) {
3354 PL_laststatval = -1;
3355 PL_laststype = OP_STAT;
3356 }
349d4f2f
NC
3357 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3358 '\n'))