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Re: The long awaited feature ...
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
cb50131a 3 * Copyright (c) 1991-2000, Larry Wall
a0d0e21e
LW		 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10/*
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
15 */
16
17#include "EXTERN.h"
864dbfa3 18#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 19#include "perl.h"
20
f1066039
JH		 21#ifdef I_SHADOW
22/* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 24 * The API is from SysV.
25 *
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
28 *
29 * --jhi */
30# ifdef __hpux__
c529f79d 31/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 33# undef MAXINT
34# endif
35# include <shadow.h>
8c0bfa08
PB		 36#endif
37
301e8125
NIS		 38#ifdef HAS_SYSCALL
39#ifdef __cplusplus
8ac85365
NIS		 40extern "C" int syscall(unsigned long,...);
41#endif
42#endif
43
76c32331 44#ifdef I_SYS_WAIT
45# include <sys/wait.h>
46#endif
47
48#ifdef I_SYS_RESOURCE
49# include <sys/resource.h>
16d20bd9 50#endif
a0d0e21e 51
a0d0e21e 52#ifdef HAS_SELECT
1e743fda
JH		 53# ifdef I_SYS_SELECT
54# include <sys/select.h>
55# endif
a0d0e21e 56#endif
a0d0e21e 57
dc45a647
MB		 58/* XXX Configure test needed.
59 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 60 applications, see "extern int errno in perl.h". Creating such
61 a test requires taking into account the differences between
62 compiling multithreaded and singlethreaded ($ccflags et al).
63 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 64*/
cb50131a 65#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 66extern int h_errno;
67#endif
68
69#ifdef HAS_PASSWD
70# ifdef I_PWD
71# include <pwd.h>
72# else
20ce7b12
GS		 73 struct passwd *getpwnam (char *);
74 struct passwd *getpwuid (Uid_t);
a0d0e21e 75# endif
28e8609d 76# ifdef HAS_GETPWENT
20ce7b12 77 struct passwd *getpwent (void);
28e8609d 78# endif
a0d0e21e
LW		 79#endif
80
81#ifdef HAS_GROUP
82# ifdef I_GRP
83# include <grp.h>
84# else
20ce7b12
GS		 85 struct group *getgrnam (char *);
86 struct group *getgrgid (Gid_t);
a0d0e21e 87# endif
28e8609d 88# ifdef HAS_GETGRENT
20ce7b12 89 struct group *getgrent (void);
28e8609d 90# endif
a0d0e21e
LW		 91#endif
92
93#ifdef I_UTIME
3730b96e 94# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 95# include <sys/utime.h>
96# else
97# include <utime.h>
98# endif
a0d0e21e 99#endif
a0d0e21e 100
54310121 101/* Put this after #includes because fork and vfork prototypes may conflict. */
102#ifndef HAS_VFORK
103# define vfork fork
104#endif
105
cbdc8872 106#ifdef HAS_CHSIZE
cd52b7b2 107# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
108# undef my_chsize
109# endif
6ad3d225 110# define my_chsize PerlLIO_chsize
cbdc8872 111#endif
112
ff68c719 113#ifdef HAS_FLOCK
114# define FLOCK flock
115#else /* no flock() */
116
36477c24 117 /* fcntl.h might not have been included, even if it exists, because
118 the current Configure only sets I_FCNTL if it's needed to pick up
119 the *_OK constants. Make sure it has been included before testing
120 the fcntl() locking constants. */
121# if defined(HAS_FCNTL) && !defined(I_FCNTL)
122# include <fcntl.h>
123# endif
124
9d9004a9 125# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 126# define FLOCK fcntl_emulate_flock
127# define FCNTL_EMULATE_FLOCK
128# else /* no flock() or fcntl(F_SETLK,...) */
129# ifdef HAS_LOCKF
130# define FLOCK lockf_emulate_flock
131# define LOCKF_EMULATE_FLOCK
132# endif /* lockf */
133# endif /* no flock() or fcntl(F_SETLK,...) */
134
135# ifdef FLOCK
20ce7b12 136 static int FLOCK (int, int);
ff68c719 137
138 /*
139 * These are the flock() constants. Since this sytems doesn't have
140 * flock(), the values of the constants are probably not available.
141 */
142# ifndef LOCK_SH
143# define LOCK_SH 1
144# endif
145# ifndef LOCK_EX
146# define LOCK_EX 2
147# endif
148# ifndef LOCK_NB
149# define LOCK_NB 4
150# endif
151# ifndef LOCK_UN
152# define LOCK_UN 8
153# endif
154# endif /* emulating flock() */
155
156#endif /* no flock() */
55497cff 157
85ab1d1d
JH		 158#define ZBTLEN 10
159static char zero_but_true[ZBTLEN + 1] = "0 but true";
160
5ff3f7a4
GS		 161#if defined(I_SYS_ACCESS) && !defined(R_OK)
162# include <sys/access.h>
163#endif
164
c529f79d
CB		 165#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
166# define FD_CLOEXEC 1 /* NeXT needs this */
167#endif
168
5ff3f7a4
GS		 169#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
170#undef PERL_EFF_ACCESS_W_OK
171#undef PERL_EFF_ACCESS_X_OK
172
173/* F_OK unused: if stat() cannot find it... */
174
175#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 176 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 177# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
178# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
179# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
180#endif
181
182#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 183# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 184# include <sys/security.h>
185# endif
c955f117
JH		 186# ifdef ACC_SELF
187 /* HP SecureWare */
188# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
189# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
190# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
191# else
192 /* SCO */
193# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
194# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
195# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
196# endif
5ff3f7a4
GS		 197#endif
198
199#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 200 /* AIX */
5ff3f7a4
GS		 201# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
202# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
203# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
204#endif
205
327c3667
GS		 206#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
207 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
208 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 209/* The Hard Way. */
327c3667 210STATIC int
7f4774ae 211S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 212{
5ff3f7a4
GS		 213 Uid_t ruid = getuid();
214 Uid_t euid = geteuid();
215 Gid_t rgid = getgid();
216 Gid_t egid = getegid();
217 int res;
218
146174a9 219 LOCK_CRED_MUTEX;
5ff3f7a4 220#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 221 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 222#else
223#ifdef HAS_SETREUID
224 if (setreuid(euid, ruid))
225#else
226#ifdef HAS_SETRESUID
227 if (setresuid(euid, ruid, (Uid_t)-1))
228#endif
229#endif
cea2e8a9 230 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 231#endif
232
233#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 234 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 235#else
236#ifdef HAS_SETREGID
237 if (setregid(egid, rgid))
238#else
239#ifdef HAS_SETRESGID
240 if (setresgid(egid, rgid, (Gid_t)-1))
241#endif
242#endif
cea2e8a9 243 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 244#endif
245
246 res = access(path, mode);
247
248#ifdef HAS_SETREUID
249 if (setreuid(ruid, euid))
250#else
251#ifdef HAS_SETRESUID
252 if (setresuid(ruid, euid, (Uid_t)-1))
253#endif
254#endif
cea2e8a9 255 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 256
257#ifdef HAS_SETREGID
258 if (setregid(rgid, egid))
259#else
260#ifdef HAS_SETRESGID
261 if (setresgid(rgid, egid, (Gid_t)-1))
262#endif
263#endif
cea2e8a9 264 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 265 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 266
267 return res;
268}
269# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
270# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
271# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
272#endif
273
274#if !defined(PERL_EFF_ACCESS_R_OK)
327c3667 275STATIC int
7f4774ae 276S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 277{
cea2e8a9 278 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 279 /*NOTREACHED*/
280 return -1;
281}
282#endif
283
a0d0e21e
LW		 284PP(pp_backtick)
285{
4e35701f 286 djSP; dTARGET;
760ac839 287 PerlIO *fp;
2d8e6c8d
GS		 288 STRLEN n_a;
289 char *tmps = POPpx;
54310121 290 I32 gimme = GIMME_V;
16fe6d59 291 char *mode = "r";
54310121 292
a0d0e21e 293 TAINT_PROPER("``");
16fe6d59
GS		 294 if (PL_op->op_private & OPpOPEN_IN_RAW)
295 mode = "rb";
296 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
297 mode = "rt";
298 fp = PerlProc_popen(tmps, mode);
a0d0e21e 299 if (fp) {
ac27b0f5
NIS		 300 char *type = NULL;
301 if (PL_curcop->cop_io) {
302 type = SvPV_nolen(PL_curcop->cop_io);
303 }
ac27b0f5
NIS		 304 if (type && *type)
305 PerlIO_apply_layers(aTHX_ fp,mode,type);
306
54310121 307 if (gimme == G_VOID) {
96827780
MB		 308 char tmpbuf[256];
309 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 310 /*SUPPRESS 530*/
311 ;
312 }
313 else if (gimme == G_SCALAR) {
aa689395 314 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 315 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
316 /*SUPPRESS 530*/
317 ;
318 XPUSHs(TARG);
aa689395 319 SvTAINTED_on(TARG);
a0d0e21e
LW		 320 }
321 else {
322 SV *sv;
323
324 for (;;) {
8d6dde3e 325 sv = NEWSV(56, 79);
a0d0e21e
LW		 326 if (sv_gets(sv, fp, 0) == Nullch) {
327 SvREFCNT_dec(sv);
328 break;
329 }
330 XPUSHs(sv_2mortal(sv));
331 if (SvLEN(sv) - SvCUR(sv) > 20) {
332 SvLEN_set(sv, SvCUR(sv)+1);
333 Renew(SvPVX(sv), SvLEN(sv), char);
334 }
aa689395 335 SvTAINTED_on(sv);
a0d0e21e
LW		 336 }
337 }
6ad3d225 338 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 339 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 340 }
341 else {
f86702cc 342 STATUS_NATIVE_SET(-1);
54310121 343 if (gimme == G_SCALAR)
a0d0e21e
LW		 344 RETPUSHUNDEF;
345 }
346
347 RETURN;
348}
349
350PP(pp_glob)
351{
352 OP *result;
f5284f61
IZ		 353 tryAMAGICunTARGET(iter, -1);
354
71686f12
GS		 355 /* Note that we only ever get here if File::Glob fails to load
356 * without at the same time croaking, for some reason, or if
357 * perl was built with PERL_EXTERNAL_GLOB */
358
a0d0e21e 359 ENTER;
a0d0e21e 360
c90c0ff4 361#ifndef VMS
3280af22 362 if (PL_tainting) {
7bac28a0 363 /*
364 * The external globbing program may use things we can't control,
365 * so for security reasons we must assume the worst.
366 */
367 TAINT;
22c35a8c 368 taint_proper(PL_no_security, "glob");
7bac28a0 369 }
c90c0ff4 370#endif /* !VMS */
7bac28a0 371
3280af22
NIS		 372 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
373 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 374
3280af22 375 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 376 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 377#ifndef DOSISH
378#ifndef CSH
6b88bc9c 379 *SvPVX(PL_rs) = '\n';
a0d0e21e 380#endif /* !CSH */
55497cff 381#endif /* !DOSISH */
c07a80fd 382
a0d0e21e
LW		 383 result = do_readline();
384 LEAVE;
385 return result;
386}
387
15e52e56 388#if 0 /* XXX never used! */
a0d0e21e
LW		 389PP(pp_indread)
390{
2d8e6c8d
GS		 391 STRLEN n_a;
392 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
a0d0e21e
LW		 393 return do_readline();
394}
15e52e56 395#endif
a0d0e21e
LW		 396
397PP(pp_rcatline)
398{
146174a9 399 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 400 return do_readline();
401}
402
403PP(pp_warn)
404{
4e35701f 405 djSP; dMARK;
06bf62c7 406 SV *tmpsv;
a0d0e21e 407 char *tmps;
06bf62c7 408 STRLEN len;
a0d0e21e
LW		 409 if (SP - MARK != 1) {
410 dTARGET;
3280af22 411 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 412 tmpsv = TARG;
a0d0e21e
LW		 413 SP = MARK + 1;
414 }
415 else {
06bf62c7 416 tmpsv = TOPs;
a0d0e21e 417 }
06bf62c7
GS		 418 tmps = SvPV(tmpsv, len);
419 if (!tmps || !len) {
4e6ea2c3
GS		 420 SV *error = ERRSV;
421 (void)SvUPGRADE(error, SVt_PV);
422 if (SvPOK(error) && SvCUR(error))
423 sv_catpv(error, "\t...caught");
06bf62c7
GS		 424 tmpsv = error;
425 tmps = SvPV(tmpsv, len);
a0d0e21e 426 }
06bf62c7
GS		 427 if (!tmps || !len)
428 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
429
cb50131a 430 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 431 RETSETYES;
432}
433
434PP(pp_die)
435{
4e35701f 436 djSP; dMARK;
a0d0e21e 437 char *tmps;
06bf62c7
GS		 438 SV *tmpsv;
439 STRLEN len;
440 bool multiarg = 0;
a0d0e21e
LW		 441 if (SP - MARK != 1) {
442 dTARGET;
3280af22 443 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 444 tmpsv = TARG;
445 tmps = SvPV(tmpsv, len);
446 multiarg = 1;
a0d0e21e
LW		 447 SP = MARK + 1;
448 }
449 else {
4e6ea2c3 450 tmpsv = TOPs;
bf484eac 451 tmps = (SvROK(tmpsv) && PL_in_eval) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 452 }
06bf62c7 453 if (!tmps || !len) {
4e6ea2c3
GS		 454 SV *error = ERRSV;
455 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 456 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
457 if (!multiarg)
4e6ea2c3 458 SvSetSV(error,tmpsv);
06bf62c7 459 else if (sv_isobject(error)) {
05423cc9
GS		 460 HV *stash = SvSTASH(SvRV(error));
461 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
462 if (gv) {
146174a9 463 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 464 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 465 EXTEND(SP, 3);
466 PUSHMARK(SP);
467 PUSHs(error);
468 PUSHs(file);
469 PUSHs(line);
470 PUTBACK;
864dbfa3
GS		 471 call_sv((SV*)GvCV(gv),
472 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 473 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 474 }
475 }
cea2e8a9 476 DIE(aTHX_ Nullch);
4e6ea2c3
GS		 477 }
478 else {
479 if (SvPOK(error) && SvCUR(error))
480 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 481 tmpsv = error;
482 tmps = SvPV(tmpsv, len);
4e6ea2c3 483 }
a0d0e21e 484 }
06bf62c7
GS		 485 if (!tmps || !len)
486 tmpsv = sv_2mortal(newSVpvn("Died", 4));
487
cb50131a 488 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 489}
490
491/* I/O. */
492
493PP(pp_open)
494{
4e35701f 495 djSP; dTARGET;
a0d0e21e
LW		 496 GV *gv;
497 SV *sv;
6aa016ca 498 SV *name = Nullsv;
6170680b 499 I32 have_name = 0;
a0d0e21e
LW		 500 char *tmps;
501 STRLEN len;
4592e6ca 502 MAGIC *mg;
a0d0e21e 503
6170680b
IZ		 504 if (MAXARG > 2) {
505 name = POPs;
506 have_name = 1;
507 }
a0d0e21e
LW		 508 if (MAXARG > 1)
509 sv = POPs;
5f05dabc 510 if (!isGV(TOPs))
cea2e8a9 511 DIE(aTHX_ PL_no_usym, "filehandle");
5f05dabc 512 if (MAXARG <= 1)
513 sv = GvSV(TOPs);
a0d0e21e 514 gv = (GV*)POPs;
5f05dabc 515 if (!isGV(gv))
cea2e8a9 516 DIE(aTHX_ PL_no_usym, "filehandle");
36477c24 517 if (GvIOp(gv))
518 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 519
155aba94 520 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
4592e6ca
NIS		 521 PUSHMARK(SP);
522 XPUSHs(SvTIED_obj((SV*)gv, mg));
523 XPUSHs(sv);
6170680b
IZ		 524 if (have_name)
525 XPUSHs(name);
4592e6ca
NIS		 526 PUTBACK;
527 ENTER;
864dbfa3 528 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 529 LEAVE;
530 SPAGAIN;
531 RETURN;
532 }
533
a0d0e21e 534 tmps = SvPV(sv, len);
6170680b 535 if (do_open9(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, name, have_name))
3280af22
NIS		 536 PUSHi( (I32)PL_forkprocess );
537 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 538 PUSHi(0);
539 else
540 RETPUSHUNDEF;
541 RETURN;
542}
543
544PP(pp_close)
545{
4e35701f 546 djSP;
a0d0e21e 547 GV *gv;
1d603a67 548 MAGIC *mg;
a0d0e21e
LW		 549
550 if (MAXARG == 0)
3280af22 551 gv = PL_defoutgv;
a0d0e21e
LW		 552 else
553 gv = (GV*)POPs;
1d603a67 554
155aba94 555 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67 556 PUSHMARK(SP);
33c27489 557 XPUSHs(SvTIED_obj((SV*)gv, mg));
1d603a67
GB		 558 PUTBACK;
559 ENTER;
864dbfa3 560 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 561 LEAVE;
562 SPAGAIN;
563 RETURN;
564 }
a0d0e21e 565 EXTEND(SP, 1);
54310121 566 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 567 RETURN;
568}
569
570PP(pp_pipe_op)
571{
4e35701f 572 djSP;
a0d0e21e
LW		 573#ifdef HAS_PIPE
574 GV *rgv;
575 GV *wgv;
576 register IO *rstio;
577 register IO *wstio;
578 int fd[2];
579
580 wgv = (GV*)POPs;
581 rgv = (GV*)POPs;
582
583 if (!rgv || !wgv)
584 goto badexit;
585
4633a7c4 586 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 587 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 588 rstio = GvIOn(rgv);
589 wstio = GvIOn(wgv);
590
591 if (IoIFP(rstio))
592 do_close(rgv, FALSE);
593 if (IoIFP(wstio))
594 do_close(wgv, FALSE);
595
6ad3d225 596 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 597 goto badexit;
598
760ac839
LW		 599 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
600 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
a0d0e21e 601 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 602 IoTYPE(rstio) = IoTYPE_RDONLY;
603 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 604
605 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 606 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 607 else PerlLIO_close(fd[0]);
760ac839 608 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 609 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 610 goto badexit;
611 }
4771b018
GS		 612#if defined(HAS_FCNTL) && defined(F_SETFD)
613 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
614 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
615#endif
a0d0e21e
LW		 616 RETPUSHYES;
617
618badexit:
619 RETPUSHUNDEF;
620#else
cea2e8a9 621 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 622#endif
623}
624
625PP(pp_fileno)
626{
4e35701f 627 djSP; dTARGET;
a0d0e21e
LW		 628 GV *gv;
629 IO *io;
760ac839 630 PerlIO *fp;
4592e6ca
NIS		 631 MAGIC *mg;
632
a0d0e21e
LW		 633 if (MAXARG < 1)
634 RETPUSHUNDEF;
635 gv = (GV*)POPs;
4592e6ca
NIS		 636
637 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
638 PUSHMARK(SP);
639 XPUSHs(SvTIED_obj((SV*)gv, mg));
640 PUTBACK;
641 ENTER;
864dbfa3 642 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 643 LEAVE;
644 SPAGAIN;
645 RETURN;
646 }
647
a0d0e21e
LW		 648 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
649 RETPUSHUNDEF;
760ac839 650 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 651 RETURN;
652}
653
654PP(pp_umask)
655{
4e35701f 656 djSP; dTARGET;
761237fe 657 Mode_t anum;
a0d0e21e
LW		 658
659#ifdef HAS_UMASK
660 if (MAXARG < 1) {
6ad3d225
GS		 661 anum = PerlLIO_umask(0);
662 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 663 }
664 else
6ad3d225 665 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 666 TAINT_PROPER("umask");
667 XPUSHi(anum);
668#else
eec2d3df
GS		 669 /* Only DIE if trying to restrict permissions on `user' (self).
670 * Otherwise it's harmless and more useful to just return undef
671 * since 'group' and 'other' concepts probably don't exist here. */
672 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 673 DIE(aTHX_ "umask not implemented");
6b88bc9c 674 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 675#endif
676 RETURN;
677}
678
679PP(pp_binmode)
680{
4e35701f 681 djSP;
a0d0e21e
LW		 682 GV *gv;
683 IO *io;
760ac839 684 PerlIO *fp;
4592e6ca 685 MAGIC *mg;
16fe6d59 686 SV *discp = Nullsv;
60382766
NIS		 687 STRLEN len = 0;
688 char *names = NULL;
a0d0e21e
LW		 689
690 if (MAXARG < 1)
691 RETPUSHUNDEF;
60382766 692 if (MAXARG > 1) {
16fe6d59 693 discp = POPs;
60382766 694 }
a0d0e21e 695
301e8125 696 gv = (GV*)POPs;
4592e6ca
NIS		 697
698 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
699 PUSHMARK(SP);
700 XPUSHs(SvTIED_obj((SV*)gv, mg));
16fe6d59
GS		 701 if (discp)
702 XPUSHs(discp);
4592e6ca
NIS		 703 PUTBACK;
704 ENTER;
864dbfa3 705 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 706 LEAVE;
707 SPAGAIN;
708 RETURN;
709 }
a0d0e21e
LW		 710
711 EXTEND(SP, 1);
50f846a7
SC		 712 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
713 report_evil_fh(gv, io, PL_op->op_type);
714 RETPUSHUNDEF;
715 }
a0d0e21e 716
60382766
NIS		 717 if (discp) {
718 names = SvPV(discp,len);
719 }
720
721 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
722 (discp) ? SvPV_nolen(discp) : Nullch))
a0d0e21e
LW		 723 RETPUSHYES;
724 else
725 RETPUSHUNDEF;
a0d0e21e
LW		 726}
727
728PP(pp_tie)
729{
4e35701f 730 djSP;
e336de0d 731 dMARK;
a0d0e21e
LW		 732 SV *varsv;
733 HV* stash;
734 GV *gv;
a0d0e21e 735 SV *sv;
3280af22 736 I32 markoff = MARK - PL_stack_base;
a0d0e21e 737 char *methname;
6b05c17a 738 int how = 'P';
e336de0d 739 U32 items;
2d8e6c8d 740 STRLEN n_a;
a0d0e21e 741
e336de0d 742 varsv = *++MARK;
6b05c17a
NIS		 743 switch(SvTYPE(varsv)) {
744 case SVt_PVHV:
745 methname = "TIEHASH";
746 break;
747 case SVt_PVAV:
748 methname = "TIEARRAY";
749 break;
750 case SVt_PVGV:
751 methname = "TIEHANDLE";
752 how = 'q';
753 break;
754 default:
755 methname = "TIESCALAR";
756 how = 'q';
757 break;
758 }
e336de0d
GS		 759 items = SP - MARK++;
760 if (sv_isobject(*MARK)) {
6b05c17a 761 ENTER;
e788e7d3 762 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 763 PUSHMARK(SP);
764 EXTEND(SP,items);
765 while (items--)
766 PUSHs(*MARK++);
767 PUTBACK;
864dbfa3 768 call_method(methname, G_SCALAR);
301e8125 769 }
6b05c17a 770 else {
864dbfa3 771 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 772 * perhaps to get different error message ?
773 */
e336de0d 774 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 775 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 776 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 777 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 778 }
779 ENTER;
e788e7d3 780 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 781 PUSHMARK(SP);
782 EXTEND(SP,items);
783 while (items--)
784 PUSHs(*MARK++);
785 PUTBACK;
864dbfa3 786 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 787 }
a0d0e21e
LW		 788 SPAGAIN;
789
790 sv = TOPs;
d3acc0f7 791 POPSTACK;
a0d0e21e 792 if (sv_isobject(sv)) {
33c27489 793 sv_unmagic(varsv, how);
ae21d580
JH		 794 /* Croak if a self-tie on an aggregate is attempted. */
795 if (varsv == SvRV(sv) &&
796 (SvTYPE(sv) == SVt_PVAV ||
797 SvTYPE(sv) == SVt_PVHV))
798 Perl_croak(aTHX_
799 "Self-ties of arrays and hashes are not supported");
68a4a7e4 800 sv_magic(varsv, sv, how, Nullch, 0);
a0d0e21e
LW		 801 }
802 LEAVE;
3280af22 803 SP = PL_stack_base + markoff;
a0d0e21e
LW		 804 PUSHs(sv);
805 RETURN;
806}
807
808PP(pp_untie)
809{
4e35701f 810 djSP;
33c27489
GS		 811 SV *sv = POPs;
812 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
55497cff 813
cbdc8872 814 MAGIC * mg ;
155aba94 815 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 816 SV *obj = SvRV(mg->mg_obj);
817 GV *gv;
818 CV *cv = NULL;
a29a5827
NIS		 819 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
820 isGV(gv) && (cv = GvCV(gv))) {
821 PUSHMARK(SP);
822 XPUSHs(SvTIED_obj((SV*)gv, mg));
301e8125 823 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
a29a5827
NIS		 824 PUTBACK;
825 ENTER;
826 call_sv((SV *)cv, G_VOID);
827 LEAVE;
828 SPAGAIN;
cbdc8872 829 }
301e8125
NIS		 830 else if (ckWARN(WARN_UNTIE)) {
831 if (mg && SvREFCNT(obj) > 1)
832 Perl_warner(aTHX_ WARN_UNTIE,
833 "untie attempted while %"UVuf" inner references still exist",
834 (UV)SvREFCNT(obj) - 1 ) ;
835 }
cbdc8872 836 }
33c27489 837 sv_unmagic(sv, how);
55497cff 838 RETPUSHYES;
a0d0e21e
LW		 839}
840
c07a80fd 841PP(pp_tied)
842{
4e35701f 843 djSP;
33c27489
GS		 844 SV *sv = POPs;
845 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
846 MAGIC *mg;
c07a80fd 847
155aba94 848 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 849 SV *osv = SvTIED_obj(sv, mg);
850 if (osv == mg->mg_obj)
851 osv = sv_mortalcopy(osv);
852 PUSHs(osv);
853 RETURN;
c07a80fd 854 }
c07a80fd 855 RETPUSHUNDEF;
856}
857
a0d0e21e
LW		 858PP(pp_dbmopen)
859{
4e35701f 860 djSP;
a0d0e21e
LW		 861 HV *hv;
862 dPOPPOPssrl;
863 HV* stash;
864 GV *gv;
a0d0e21e
LW		 865 SV *sv;
866
867 hv = (HV*)POPs;
868
3280af22 869 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 870 sv_setpv(sv, "AnyDBM_File");
871 stash = gv_stashsv(sv, FALSE);
8ebc5c01 872 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 873 PUTBACK;
864dbfa3 874 require_pv("AnyDBM_File.pm");
a0d0e21e 875 SPAGAIN;
8ebc5c01 876 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 877 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 878 }
879
57d3b86d 880 ENTER;
924508f0 881 PUSHMARK(SP);
6b05c17a 882
924508f0 883 EXTEND(SP, 5);
a0d0e21e
LW		 884 PUSHs(sv);
885 PUSHs(left);
886 if (SvIV(right))
b448e4fe 887 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 888 else
b448e4fe 889 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 890 PUSHs(right);
57d3b86d 891 PUTBACK;
864dbfa3 892 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 893 SPAGAIN;
894
895 if (!sv_isobject(TOPs)) {
924508f0
GS		 896 SP--;
897 PUSHMARK(SP);
a0d0e21e
LW		 898 PUSHs(sv);
899 PUSHs(left);
b448e4fe 900 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 901 PUSHs(right);
a0d0e21e 902 PUTBACK;
864dbfa3 903 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 904 SPAGAIN;
905 }
906
6b05c17a 907 if (sv_isobject(TOPs)) {
301e8125 908 sv_unmagic((SV *) hv, 'P');
a0d0e21e 909 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 910 }
a0d0e21e
LW		 911 LEAVE;
912 RETURN;
913}
914
915PP(pp_dbmclose)
916{
cea2e8a9 917 return pp_untie();
a0d0e21e
LW		 918}
919
920PP(pp_sselect)
921{
4e35701f 922 djSP; dTARGET;
a0d0e21e
LW		 923#ifdef HAS_SELECT
924 register I32 i;
925 register I32 j;
926 register char *s;
927 register SV *sv;
65202027 928 NV value;
a0d0e21e
LW		 929 I32 maxlen = 0;
930 I32 nfound;
931 struct timeval timebuf;
932 struct timeval *tbuf = &timebuf;
933 I32 growsize;
934 char *fd_sets[4];
2d8e6c8d 935 STRLEN n_a;
a0d0e21e
LW		 936#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
937 I32 masksize;
938 I32 offset;
939 I32 k;
940
941# if BYTEORDER & 0xf0000
942# define ORDERBYTE (0x88888888 - BYTEORDER)
943# else
944# define ORDERBYTE (0x4444 - BYTEORDER)
945# endif
946
947#endif
948
949 SP -= 4;
950 for (i = 1; i <= 3; i++) {
951 if (!SvPOK(SP[i]))
952 continue;
953 j = SvCUR(SP[i]);
954 if (maxlen < j)
955 maxlen = j;
956 }
957
5ff3f7a4 958/* little endians can use vecs directly */
a0d0e21e 959#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 960# if SELECT_MIN_BITS > 1
f2da832e
JH		 961 /* If SELECT_MIN_BITS is greater than one we most probably will want
962 * to align the sizes with SELECT_MIN_BITS/8 because for example
963 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 964 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 965 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 966 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 967# else
4633a7c4 968 growsize = sizeof(fd_set);
5ff3f7a4
GS		 969# endif
970# else
971# ifdef NFDBITS
a0d0e21e 972
5ff3f7a4
GS		 973# ifndef NBBY
974# define NBBY 8
975# endif
a0d0e21e
LW		 976
977 masksize = NFDBITS / NBBY;
5ff3f7a4 978# else
a0d0e21e 979 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 980# endif
a0d0e21e
LW		 981 growsize = maxlen + (masksize - (maxlen % masksize));
982 Zero(&fd_sets[0], 4, char*);
983#endif
984
985 sv = SP[4];
986 if (SvOK(sv)) {
987 value = SvNV(sv);
988 if (value < 0.0)
989 value = 0.0;
990 timebuf.tv_sec = (long)value;
65202027 991 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 992 timebuf.tv_usec = (long)(value * 1000000.0);
993 }
994 else
995 tbuf = Null(struct timeval*);
996
997 for (i = 1; i <= 3; i++) {
998 sv = SP[i];
999 if (!SvOK(sv)) {
1000 fd_sets[i] = 0;
1001 continue;
1002 }
1003 else if (!SvPOK(sv))
2d8e6c8d 1004 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1005 j = SvLEN(sv);
1006 if (j < growsize) {
1007 Sv_Grow(sv, growsize);
a0d0e21e 1008 }
c07a80fd 1009 j = SvCUR(sv);
1010 s = SvPVX(sv) + j;
1011 while (++j <= growsize) {
1012 *s++ = '\0';
1013 }
1014
a0d0e21e
LW		 1015#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1016 s = SvPVX(sv);
1017 New(403, fd_sets[i], growsize, char);
1018 for (offset = 0; offset < growsize; offset += masksize) {
1019 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1020 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1021 }
1022#else
1023 fd_sets[i] = SvPVX(sv);
1024#endif
1025 }
1026
6ad3d225 1027 nfound = PerlSock_select(
a0d0e21e
LW		 1028 maxlen * 8,
1029 (Select_fd_set_t) fd_sets[1],
1030 (Select_fd_set_t) fd_sets[2],
1031 (Select_fd_set_t) fd_sets[3],
1032 tbuf);
1033 for (i = 1; i <= 3; i++) {
1034 if (fd_sets[i]) {
1035 sv = SP[i];
1036#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1037 s = SvPVX(sv);
1038 for (offset = 0; offset < growsize; offset += masksize) {
1039 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1040 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1041 }
1042 Safefree(fd_sets[i]);
1043#endif
1044 SvSETMAGIC(sv);
1045 }
1046 }
1047
1048 PUSHi(nfound);
1049 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1050 value = (NV)(timebuf.tv_sec) +
1051 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1052 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1053 sv_setnv(sv, value);
1054 }
1055 RETURN;
1056#else
cea2e8a9 1057 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1058#endif
1059}
1060
4633a7c4 1061void
864dbfa3 1062Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1063{
1064 if (gv)
1065 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1066 if (PL_defoutgv)
1067 SvREFCNT_dec(PL_defoutgv);
1068 PL_defoutgv = gv;
4633a7c4
LW		 1069}
1070
a0d0e21e
LW		 1071PP(pp_select)
1072{
4e35701f 1073 djSP; dTARGET;
4633a7c4
LW		 1074 GV *newdefout, *egv;
1075 HV *hv;
1076
533c011a 1077 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1078
3280af22 1079 egv = GvEGV(PL_defoutgv);
4633a7c4 1080 if (!egv)
3280af22 1081 egv = PL_defoutgv;
4633a7c4
LW		 1082 hv = GvSTASH(egv);
1083 if (! hv)
3280af22 1084 XPUSHs(&PL_sv_undef);
4633a7c4 1085 else {
cbdc8872 1086 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1087 if (gvp && *gvp == egv) {
f7aaccc2 1088 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1089 XPUSHTARG;
1090 }
1091 else {
1092 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1093 }
4633a7c4
LW		 1094 }
1095
1096 if (newdefout) {
ded8aa31
GS		 1097 if (!GvIO(newdefout))
1098 gv_IOadd(newdefout);
4633a7c4
LW		 1099 setdefout(newdefout);
1100 }
1101
a0d0e21e
LW		 1102 RETURN;
1103}
1104
1105PP(pp_getc)
1106{
4e35701f 1107 djSP; dTARGET;
a0d0e21e 1108 GV *gv;
2ae324a7 1109 MAGIC *mg;
a0d0e21e 1110
32da55ab 1111 if (MAXARG == 0)
3280af22 1112 gv = PL_stdingv;
a0d0e21e
LW		 1113 else
1114 gv = (GV*)POPs;
2ae324a7 1115
155aba94 1116 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1117 I32 gimme = GIMME_V;
2ae324a7 1118 PUSHMARK(SP);
33c27489 1119 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1120 PUTBACK;
1121 ENTER;
864dbfa3 1122 call_method("GETC", gimme);
2ae324a7 1123 LEAVE;
1124 SPAGAIN;
54310121 1125 if (gimme == G_SCALAR)
1126 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1127 RETURN;
1128 }
9bc64814 1129 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1130 RETPUSHUNDEF;
bbce6d69 1131 TAINT;
a0d0e21e 1132 sv_setpv(TARG, " ");
9bc64814 1133 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1134 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1135 /* Find out how many bytes the char needs */
1136 Size_t len = UTF8SKIP(SvPVX(TARG));
1137 if (len > 1) {
1138 SvGROW(TARG,len+1);
1139 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1140 SvCUR_set(TARG,1+len);
1141 }
1142 SvUTF8_on(TARG);
1143 }
a0d0e21e
LW		 1144 PUSHTARG;
1145 RETURN;
1146}
1147
1148PP(pp_read)
1149{
cea2e8a9 1150 return pp_sysread();
a0d0e21e
LW		 1151}
1152
76e3520e 1153STATIC OP *
cea2e8a9 1154S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1155{
c09156bb 1156 register PERL_CONTEXT *cx;
54310121 1157 I32 gimme = GIMME_V;
a0d0e21e
LW		 1158 AV* padlist = CvPADLIST(cv);
1159 SV** svp = AvARRAY(padlist);
1160
1161 ENTER;
1162 SAVETMPS;
1163
1164 push_return(retop);
146174a9 1165 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1166 PUSHFORMAT(cx);
146174a9 1167 SAVEVPTR(PL_curpad);
3280af22 1168 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1169
4633a7c4 1170 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1171 return CvSTART(cv);
1172}
1173
1174PP(pp_enterwrite)
1175{
4e35701f 1176 djSP;
a0d0e21e
LW		 1177 register GV *gv;
1178 register IO *io;
1179 GV *fgv;
1180 CV *cv;
1181
1182 if (MAXARG == 0)
3280af22 1183 gv = PL_defoutgv;
a0d0e21e
LW		 1184 else {
1185 gv = (GV*)POPs;
1186 if (!gv)
3280af22 1187 gv = PL_defoutgv;
a0d0e21e
LW		 1188 }
1189 EXTEND(SP, 1);
1190 io = GvIO(gv);
1191 if (!io) {
1192 RETPUSHNO;
1193 }
1194 if (IoFMT_GV(io))
1195 fgv = IoFMT_GV(io);
1196 else
1197 fgv = gv;
1198
1199 cv = GvFORM(fgv);
a0d0e21e 1200 if (!cv) {
2dd78f96 1201 char *name = NULL;
a0d0e21e 1202 if (fgv) {
748a9306 1203 SV *tmpsv = sv_newmortal();
43693395 1204 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1205 name = SvPV_nolen(tmpsv);
a0d0e21e 1206 }
2dd78f96
JH		 1207 if (name && *name)
1208 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1209 DIE(aTHX_ "Not a format reference");
a0d0e21e 1210 }
44a8e56a 1211 if (CvCLONE(cv))
1212 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1213
44a8e56a 1214 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1215 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1216}
1217
1218PP(pp_leavewrite)
1219{
4e35701f 1220 djSP;
a0d0e21e
LW		 1221 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1222 register IO *io = GvIOp(gv);
760ac839
LW		 1223 PerlIO *ofp = IoOFP(io);
1224 PerlIO *fp;
a0d0e21e
LW		 1225 SV **newsp;
1226 I32 gimme;
c09156bb 1227 register PERL_CONTEXT *cx;
a0d0e21e 1228
760ac839 1229 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22
NIS		 1230 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1231 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1232 PL_formtarget != PL_toptarget)
a0d0e21e 1233 {
4633a7c4
LW		 1234 GV *fgv;
1235 CV *cv;
a0d0e21e
LW		 1236 if (!IoTOP_GV(io)) {
1237 GV *topgv;
46fc3d4c 1238 SV *topname;
a0d0e21e
LW		 1239
1240 if (!IoTOP_NAME(io)) {
1241 if (!IoFMT_NAME(io))
1242 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1243 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1244 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1245 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1246 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1247 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1248 else
1249 IoTOP_NAME(io) = savepv("top");
1250 }
1251 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1252 if (!topgv || !GvFORM(topgv)) {
1253 IoLINES_LEFT(io) = 100000000;
1254 goto forget_top;
1255 }
1256 IoTOP_GV(io) = topgv;
1257 }
748a9306
LW		 1258 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1259 I32 lines = IoLINES_LEFT(io);
3280af22 1260 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1261 if (lines <= 0) /* Yow, header didn't even fit!!! */
1262 goto forget_top;
748a9306
LW		 1263 while (lines-- > 0) {
1264 s = strchr(s, '\n');
1265 if (!s)
1266 break;
1267 s++;
1268 }
1269 if (s) {
d75029d0
NIS		 1270 STRLEN save = SvCUR(PL_formtarget);
1271 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1272 do_print(PL_formtarget, ofp);
1273 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1274 sv_chop(PL_formtarget, s);
1275 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1276 }
1277 }
a0d0e21e 1278 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1279 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1280 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1281 IoPAGE(io)++;
3280af22 1282 PL_formtarget = PL_toptarget;
748a9306 1283 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1284 fgv = IoTOP_GV(io);
1285 if (!fgv)
cea2e8a9 1286 DIE(aTHX_ "bad top format reference");
4633a7c4 1287 cv = GvFORM(fgv);
2dd78f96
JH		 1288 {
1289 char *name = NULL;
1290 if (!cv) {
1291 SV *sv = sv_newmortal();
1292 gv_efullname4(sv, fgv, Nullch, FALSE);
1293 name = SvPV_nolen(sv);
1294 }
1295 if (name && *name)
1296 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1297 /* why no:
1298 else
1299 DIE(aTHX_ "Undefined top format called");
1300 ?*/
4633a7c4 1301 }
44a8e56a 1302 if (CvCLONE(cv))
1303 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1304 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1305 }
1306
1307 forget_top:
3280af22 1308 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1309 POPFORMAT(cx);
1310 LEAVE;
1311
1312 fp = IoOFP(io);
1313 if (!fp) {
599cee73 1314 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1315 if (IoIFP(io)) {
2dd78f96
JH		 1316 /* integrate with report_evil_fh()? */
1317 char *name = NULL;
1318 if (isGV(gv)) {
1319 SV* sv = sv_newmortal();
1320 gv_efullname4(sv, gv, Nullch, FALSE);
1321 name = SvPV_nolen(sv);
1322 }
1323 if (name && *name)
1324 Perl_warner(aTHX_ WARN_IO,
1325 "Filehandle %s opened only for input", name);
1326 else
1327 Perl_warner(aTHX_ WARN_IO,
1328 "Filehandle opened only for input");
cb50131a 1329 }
599cee73 1330 else if (ckWARN(WARN_CLOSED))
bc37a18f 1331 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1332 }
3280af22 1333 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1334 }
1335 else {
3280af22 1336 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1337 if (ckWARN(WARN_IO))
cea2e8a9 1338 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1339 }
d75029d0 1340 if (!do_print(PL_formtarget, fp))
3280af22 1341 PUSHs(&PL_sv_no);
a0d0e21e 1342 else {
3280af22
NIS		 1343 FmLINES(PL_formtarget) = 0;
1344 SvCUR_set(PL_formtarget, 0);
1345 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1346 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1347 (void)PerlIO_flush(fp);
3280af22 1348 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1349 }
1350 }
3280af22 1351 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1352 PUTBACK;
1353 return pop_return();
1354}
1355
1356PP(pp_prtf)
1357{
4e35701f 1358 djSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1359 GV *gv;
1360 IO *io;
760ac839 1361 PerlIO *fp;
26db47c4 1362 SV *sv;
46fc3d4c 1363 MAGIC *mg;
2d8e6c8d 1364 STRLEN n_a;
a0d0e21e 1365
533c011a 1366 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1367 gv = (GV*)*++MARK;
1368 else
3280af22 1369 gv = PL_defoutgv;
46fc3d4c 1370
155aba94 1371 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1372 if (MARK == ORIGMARK) {
4352c267 1373 MEXTEND(SP, 1);
46fc3d4c 1374 ++MARK;
1375 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1376 ++SP;
1377 }
1378 PUSHMARK(MARK - 1);
33c27489 1379 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1380 PUTBACK;
1381 ENTER;
864dbfa3 1382 call_method("PRINTF", G_SCALAR);
46fc3d4c 1383 LEAVE;
1384 SPAGAIN;
1385 MARK = ORIGMARK + 1;
1386 *MARK = *SP;
1387 SP = MARK;
1388 RETURN;
1389 }
1390
26db47c4 1391 sv = NEWSV(0,0);
a0d0e21e 1392 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1393 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1394 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1395 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1396 goto just_say_no;
1397 }
1398 else if (!(fp = IoOFP(io))) {
599cee73 1399 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1400 /* integrate with report_evil_fh()? */
cb50131a 1401 if (IoIFP(io)) {
2dd78f96
JH		 1402 char *name = NULL;
1403 if (isGV(gv)) {
1404 gv_efullname4(sv, gv, Nullch, FALSE);
1405 name = SvPV_nolen(sv);
1406 }
1407 if (name && *name)
1408 Perl_warner(aTHX_ WARN_IO,
1409 "Filehandle %s opened only for input", name);
1410 else
1411 Perl_warner(aTHX_ WARN_IO,
1412 "Filehandle opened only for input");
cb50131a 1413 }
599cee73 1414 else if (ckWARN(WARN_CLOSED))
bc37a18f 1415 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1416 }
748a9306 1417 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1418 goto just_say_no;
1419 }
1420 else {
1421 do_sprintf(sv, SP - MARK, MARK + 1);
1422 if (!do_print(sv, fp))
1423 goto just_say_no;
1424
1425 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1426 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1427 goto just_say_no;
1428 }
1429 SvREFCNT_dec(sv);
1430 SP = ORIGMARK;
3280af22 1431 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1432 RETURN;
1433
1434 just_say_no:
1435 SvREFCNT_dec(sv);
1436 SP = ORIGMARK;
3280af22 1437 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1438 RETURN;
1439}
1440
c07a80fd 1441PP(pp_sysopen)
1442{
4e35701f 1443 djSP;
c07a80fd 1444 GV *gv;
c07a80fd 1445 SV *sv;
1446 char *tmps;
1447 STRLEN len;
1448 int mode, perm;
1449
1450 if (MAXARG > 3)
1451 perm = POPi;
1452 else
1453 perm = 0666;
1454 mode = POPi;
1455 sv = POPs;
1456 gv = (GV *)POPs;
1457
4592e6ca
NIS		 1458 /* Need TIEHANDLE method ? */
1459
c07a80fd 1460 tmps = SvPV(sv, len);
1461 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1462 IoLINES(GvIOp(gv)) = 0;
3280af22 1463 PUSHs(&PL_sv_yes);
c07a80fd 1464 }
1465 else {
3280af22 1466 PUSHs(&PL_sv_undef);
c07a80fd 1467 }
1468 RETURN;
1469}
1470
a0d0e21e
LW		 1471PP(pp_sysread)
1472{
4e35701f 1473 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1474 int offset;
1475 GV *gv;
1476 IO *io;
1477 char *buffer;
5b54f415 1478 SSize_t length;
eb5c063a 1479 SSize_t count;
1e422769 1480 Sock_size_t bufsize;
748a9306 1481 SV *bufsv;
a0d0e21e 1482 STRLEN blen;
2ae324a7 1483 MAGIC *mg;
eb5c063a
NIS		 1484 int fp_utf8;
1485 Size_t got = 0;
1486 Size_t wanted;
a0d0e21e
LW		 1487
1488 gv = (GV*)*++MARK;
533c011a 1489 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1490 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1491 {
2ae324a7 1492 SV *sv;
1493
1494 PUSHMARK(MARK-1);
33c27489 1495 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1496 ENTER;
864dbfa3 1497 call_method("READ", G_SCALAR);
2ae324a7 1498 LEAVE;
1499 SPAGAIN;
1500 sv = POPs;
1501 SP = ORIGMARK;
1502 PUSHs(sv);
1503 RETURN;
1504 }
1505
a0d0e21e
LW		 1506 if (!gv)
1507 goto say_undef;
748a9306 1508 bufsv = *++MARK;
ff68c719 1509 if (! SvOK(bufsv))
1510 sv_setpvn(bufsv, "", 0);
a0d0e21e 1511 length = SvIVx(*++MARK);
748a9306 1512 SETERRNO(0,0);
a0d0e21e
LW		 1513 if (MARK < SP)
1514 offset = SvIVx(*++MARK);
1515 else
1516 offset = 0;
1517 io = GvIO(gv);
1518 if (!io || !IoIFP(io))
1519 goto say_undef;
eb5c063a 1520 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTE) {
7d59b7e4 1521 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1522 /* UTF8 may not have been set if they are all low bytes */
1523 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1524 }
1525 else {
1526 buffer = SvPV_force(bufsv, blen);
1527 }
1528 if (length < 0)
1529 DIE(aTHX_ "Negative length");
eb5c063a 1530 wanted = length;
7d59b7e4 1531
a0d0e21e 1532#ifdef HAS_SOCKET
533c011a 1533 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1534 char namebuf[MAXPATHLEN];
eec2d3df 1535#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1536 bufsize = sizeof (struct sockaddr_in);
1537#else
46fc3d4c 1538 bufsize = sizeof namebuf;
490ab354 1539#endif
abf95952
IZ		 1540#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1541 if (bufsize >= 256)
1542 bufsize = 255;
1543#endif
748a9306 1544 buffer = SvGROW(bufsv, length+1);
bbce6d69 1545 /* 'offset' means 'flags' here */
eb5c063a 1546 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1547 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1548 if (count < 0)
a0d0e21e 1549 RETPUSHUNDEF;
eb5c063a 1550 SvCUR_set(bufsv, count);
748a9306
LW		 1551 *SvEND(bufsv) = '\0';
1552 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1553 if (fp_utf8)
1554 SvUTF8_on(bufsv);
748a9306 1555 SvSETMAGIC(bufsv);
aac0dd9a 1556 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1557 if (!(IoFLAGS(io) & IOf_UNTAINT))
1558 SvTAINTED_on(bufsv);
a0d0e21e 1559 SP = ORIGMARK;
46fc3d4c 1560 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1561 PUSHs(TARG);
1562 RETURN;
1563 }
1564#else
911d147d 1565 if (PL_op->op_type == OP_RECV)
cea2e8a9 1566 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1567#endif
eb5c063a
NIS		 1568 if (DO_UTF8(bufsv)) {
1569 /* offset adjust in characters not bytes */
1570 blen = sv_len_utf8(bufsv);
7d59b7e4 1571 }
bbce6d69 1572 if (offset < 0) {
1573 if (-offset > blen)
cea2e8a9 1574 DIE(aTHX_ "Offset outside string");
bbce6d69 1575 offset += blen;
1576 }
eb5c063a
NIS		 1577 if (DO_UTF8(bufsv)) {
1578 /* convert offset-as-chars to offset-as-bytes */
1579 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1580 }
1581 more_bytes:
cd52b7b2 1582 bufsize = SvCUR(bufsv);
eb5c063a 1583 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1584 if (offset > bufsize) { /* Zero any newly allocated space */
1585 Zero(buffer+bufsize, offset-bufsize, char);
1586 }
eb5c063a
NIS		 1587 buffer = buffer + offset;
1588
533c011a 1589 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1590#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1591 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1592 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1593 buffer, length, 0);
a7092146
GS		 1594 }
1595 else
1596#endif
1597 {
eb5c063a
NIS		 1598 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1599 buffer, length);
a7092146 1600 }
a0d0e21e
LW		 1601 }
1602 else
1603#ifdef HAS_SOCKET__bad_code_maybe
50952442 1604 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1605 char namebuf[MAXPATHLEN];
490ab354
JH		 1606#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1607 bufsize = sizeof (struct sockaddr_in);
1608#else
46fc3d4c 1609 bufsize = sizeof namebuf;
490ab354 1610#endif
eb5c063a 1611 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1612 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1613 }
1614 else
1615#endif
3b02c43c 1616 {
eb5c063a
NIS		 1617 count = PerlIO_read(IoIFP(io), buffer, length);
1618 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1619 if (count == 0 && PerlIO_error(IoIFP(io)))
1620 count = -1;
3b02c43c 1621 }
eb5c063a 1622 if (count < 0) {
50952442 1623 if ((IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout()
c529f79d 1624 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
af8c498a 1625 {
2dd78f96
JH		 1626 /* integrate with report_evil_fh()? */
1627 char *name = NULL;
1628 if (isGV(gv)) {
1629 SV* sv = sv_newmortal();
1630 gv_efullname4(sv, gv, Nullch, FALSE);
1631 name = SvPV_nolen(sv);
1632 }
1633 if (name && *name)
1634 Perl_warner(aTHX_ WARN_IO,
1635 "Filehandle %s opened only for output", name);
1636 else
1637 Perl_warner(aTHX_ WARN_IO,
1638 "Filehandle opened only for output");
af8c498a 1639 }
a0d0e21e 1640 goto say_undef;
af8c498a 1641 }
eb5c063a 1642 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1643 *SvEND(bufsv) = '\0';
1644 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1645 if (fp_utf8 && !IN_BYTE) {
1646 /* Look at utf8 we got back and count the characters */
1647 char *bend = buffer + count;
1648 while (buffer < bend) {
1649 STRLEN skip = UTF8SKIP(buffer);
1650 if (buffer+skip > bend) {
1651 /* partial character - try for rest of it */
1652 length = skip - (bend-buffer);
1653 offset = bend - SvPVX(bufsv);
1654 goto more_bytes;
1655 }
1656 else {
1657 got++;
1658 buffer += skip;
1659 }
1660 }
1661 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1662 provided amount read (count) was what was requested (length)
1663 */
1664 if (got < wanted && count == length) {
1665 length = (wanted-got);
1666 offset = bend - SvPVX(bufsv);
1667 goto more_bytes;
1668 }
1669 /* return value is character count */
1670 count = got;
1671 SvUTF8_on(bufsv);
1672 }
748a9306 1673 SvSETMAGIC(bufsv);
aac0dd9a 1674 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1675 if (!(IoFLAGS(io) & IOf_UNTAINT))
1676 SvTAINTED_on(bufsv);
a0d0e21e 1677 SP = ORIGMARK;
eb5c063a 1678 PUSHi(count);
a0d0e21e
LW		 1679 RETURN;
1680
1681 say_undef:
1682 SP = ORIGMARK;
1683 RETPUSHUNDEF;
1684}
1685
1686PP(pp_syswrite)
1687{
092bebab
JH		 1688 djSP;
1689 int items = (SP - PL_stack_base) - TOPMARK;
1690 if (items == 2) {
9f089d78 1691 SV *sv;
092bebab 1692 EXTEND(SP, 1);
9f089d78
SB		 1693 sv = sv_2mortal(newSViv(sv_len(*SP)));
1694 PUSHs(sv);
092bebab
JH		 1695 PUTBACK;
1696 }
cea2e8a9 1697 return pp_send();
a0d0e21e
LW		 1698}
1699
1700PP(pp_send)
1701{
4e35701f 1702 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1703 GV *gv;
1704 IO *io;
748a9306 1705 SV *bufsv;
a0d0e21e 1706 char *buffer;
8c99d73e
GS		 1707 Size_t length;
1708 SSize_t retval;
a0d0e21e 1709 STRLEN blen;
1d603a67 1710 MAGIC *mg;
a0d0e21e
LW		 1711
1712 gv = (GV*)*++MARK;
33c27489 1713 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1714 SV *sv;
1715
1716 PUSHMARK(MARK-1);
33c27489 1717 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1718 ENTER;
864dbfa3 1719 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1720 LEAVE;
1721 SPAGAIN;
1722 sv = POPs;
1723 SP = ORIGMARK;
1724 PUSHs(sv);
1725 RETURN;
1726 }
a0d0e21e
LW		 1727 if (!gv)
1728 goto say_undef;
748a9306 1729 bufsv = *++MARK;
8c99d73e 1730#if Size_t_size > IVSIZE
3c001241 1731 length = (Size_t)SvNVx(*++MARK);
146174a9 1732#else
3c001241 1733 length = (Size_t)SvIVx(*++MARK);
146174a9 1734#endif
3c001241 1735 if ((SSize_t)length < 0)
cea2e8a9 1736 DIE(aTHX_ "Negative length");
748a9306 1737 SETERRNO(0,0);
a0d0e21e
LW		 1738 io = GvIO(gv);
1739 if (!io || !IoIFP(io)) {
8c99d73e 1740 retval = -1;
bc37a18f
RG		 1741 if (ckWARN(WARN_CLOSED))
1742 report_evil_fh(gv, io, PL_op->op_type);
7d59b7e4
NIS		 1743 goto say_undef;
1744 }
1745
1746 if (PerlIO_isutf8(IoIFP(io))) {
1747 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1748 }
7d59b7e4
NIS		 1749 else {
1750 if (DO_UTF8(bufsv))
1751 sv_utf8_downgrade(bufsv, FALSE);
1752 buffer = SvPV(bufsv, blen);
1753 }
1754
1755 if (PL_op->op_type == OP_SYSWRITE) {
1756 IV offset;
1757 if (DO_UTF8(bufsv)) {
1758 /* length and offset are in chars */
1759 blen = sv_len_utf8(bufsv);
1760 }
bbce6d69 1761 if (MARK < SP) {
a0d0e21e 1762 offset = SvIVx(*++MARK);
bbce6d69 1763 if (offset < 0) {
1764 if (-offset > blen)
cea2e8a9 1765 DIE(aTHX_ "Offset outside string");
bbce6d69 1766 offset += blen;
fb73857a 1767 } else if (offset >= blen && blen > 0)
cea2e8a9 1768 DIE(aTHX_ "Offset outside string");
bbce6d69 1769 } else
a0d0e21e
LW		 1770 offset = 0;
1771 if (length > blen - offset)
1772 length = blen - offset;
7d59b7e4 1773 if (DO_UTF8(bufsv)) {
c8d31a35 1774 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1775 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1776 }
1777 else {
1778 buffer = buffer+offset;
1779 }
a7092146 1780#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1781 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1782 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1783 buffer, length, 0);
a7092146
GS		 1784 }
1785 else
1786#endif
1787 {
94e4c244 1788 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1789 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1790 buffer, length);
a7092146 1791 }
a0d0e21e
LW		 1792 }
1793#ifdef HAS_SOCKET
1794 else if (SP > MARK) {
1795 char *sockbuf;
1796 STRLEN mlen;
1797 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1798 /* length is really flags */
8c99d73e
GS		 1799 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1800 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1801 }
1802 else
7d59b7e4 1803 /* length is really flags */
8c99d73e 1804 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1805#else
1806 else
cea2e8a9 1807 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1808#endif
8c99d73e 1809 if (retval < 0)
a0d0e21e
LW		 1810 goto say_undef;
1811 SP = ORIGMARK;
8c99d73e
GS		 1812#if Size_t_size > IVSIZE
1813 PUSHn(retval);
1814#else
1815 PUSHi(retval);
1816#endif
a0d0e21e
LW		 1817 RETURN;
1818
1819 say_undef:
1820 SP = ORIGMARK;
1821 RETPUSHUNDEF;
1822}
1823
1824PP(pp_recv)
1825{
cea2e8a9 1826 return pp_sysread();
a0d0e21e
LW		 1827}
1828
1829PP(pp_eof)
1830{
4e35701f 1831 djSP;
a0d0e21e 1832 GV *gv;
4592e6ca 1833 MAGIC *mg;
a0d0e21e 1834
32da55ab 1835 if (MAXARG == 0) {
146174a9
CB		 1836 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1837 IO *io;
1838 gv = PL_last_in_gv = PL_argvgv;
1839 io = GvIO(gv);
1840 if (io && !IoIFP(io)) {
1841 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1842 IoLINES(io) = 0;
1843 IoFLAGS(io) &= ~IOf_START;
1844 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1845 sv_setpvn(GvSV(gv), "-", 1);
1846 SvSETMAGIC(GvSV(gv));
1847 }
1848 else if (!nextargv(gv))
1849 RETPUSHYES;
1850 }
1851 }
1852 else
1853 gv = PL_last_in_gv; /* eof */
1854 }
a0d0e21e 1855 else
146174a9 1856 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1857
1858 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1859 PUSHMARK(SP);
1860 XPUSHs(SvTIED_obj((SV*)gv, mg));
1861 PUTBACK;
1862 ENTER;
864dbfa3 1863 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1864 LEAVE;
1865 SPAGAIN;
1866 RETURN;
1867 }
1868
54310121 1869 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1870 RETURN;
1871}
1872
1873PP(pp_tell)
1874{
4e35701f 1875 djSP; dTARGET;
301e8125 1876 GV *gv;
4592e6ca 1877 MAGIC *mg;
a0d0e21e 1878
32da55ab 1879 if (MAXARG == 0)
3280af22 1880 gv = PL_last_in_gv;
a0d0e21e 1881 else
3280af22 1882 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1883
1884 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1885 PUSHMARK(SP);
1886 XPUSHs(SvTIED_obj((SV*)gv, mg));
1887 PUTBACK;
1888 ENTER;
864dbfa3 1889 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1890 LEAVE;
1891 SPAGAIN;
1892 RETURN;
1893 }
1894
146174a9
CB		 1895#if LSEEKSIZE > IVSIZE
1896 PUSHn( do_tell(gv) );
1897#else
a0d0e21e 1898 PUSHi( do_tell(gv) );
146174a9 1899#endif
a0d0e21e
LW		 1900 RETURN;
1901}
1902
1903PP(pp_seek)
1904{
cea2e8a9 1905 return pp_sysseek();
137443ea 1906}
1907
1908PP(pp_sysseek)
1909{
4e35701f 1910 djSP;
a0d0e21e
LW		 1911 GV *gv;
1912 int whence = POPi;
146174a9
CB		 1913#if LSEEKSIZE > IVSIZE
1914 Off_t offset = (Off_t)SvNVx(POPs);
1915#else
d9b3e12d 1916 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1917#endif
4592e6ca 1918 MAGIC *mg;
a0d0e21e 1919
3280af22 1920 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1921
1922 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1923 PUSHMARK(SP);
1924 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1925#if LSEEKSIZE > IVSIZE
1926 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1927#else
b448e4fe 1928 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1929#endif
b448e4fe 1930 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1931 PUTBACK;
1932 ENTER;
864dbfa3 1933 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1934 LEAVE;
1935 SPAGAIN;
1936 RETURN;
1937 }
1938
533c011a 1939 if (PL_op->op_type == OP_SEEK)
8903cb82 1940 PUSHs(boolSV(do_seek(gv, offset, whence)));
1941 else {
b448e4fe
JH		 1942 Off_t sought = do_sysseek(gv, offset, whence);
1943 if (sought < 0)
146174a9
CB		 1944 PUSHs(&PL_sv_undef);
1945 else {
b448e4fe 1946 SV* sv = sought ?
146174a9 1947#if LSEEKSIZE > IVSIZE
b448e4fe 1948 newSVnv((NV)sought)
146174a9 1949#else
b448e4fe 1950 newSViv(sought)
146174a9
CB		 1951#endif
1952 : newSVpvn(zero_but_true, ZBTLEN);
1953 PUSHs(sv_2mortal(sv));
1954 }
8903cb82 1955 }
a0d0e21e
LW		 1956 RETURN;
1957}
1958
1959PP(pp_truncate)
1960{
4e35701f 1961 djSP;
8c99d73e
GS		 1962 /* There seems to be no consensus on the length type of truncate()
1963 * and ftruncate(), both off_t and size_t have supporters. In
1964 * general one would think that when using large files, off_t is
1965 * at least as wide as size_t, so using an off_t should be okay. */
1966 /* XXX Configure probe for the length type of *truncate() needed XXX */
1967 Off_t len;
a0d0e21e
LW		 1968 int result = 1;
1969 GV *tmpgv;
2d8e6c8d 1970 STRLEN n_a;
a0d0e21e 1971
8c99d73e
GS		 1972#if Size_t_size > IVSIZE
1973 len = (Off_t)POPn;
1974#else
1975 len = (Off_t)POPi;
1976#endif
1977 /* Checking for length < 0 is problematic as the type might or
301e8125 1978 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 1979 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1980 SETERRNO(0,0);
5d94fbed 1981#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1982 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 1983 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 1984 do_ftruncate:
1e422769 1985 TAINT_PROPER("truncate");
cb50131a
CB		 1986 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1987 result = 0;
1988 else {
1989 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 1990#ifdef HAS_TRUNCATE
cb50131a 1991 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 1992#else
cb50131a 1993 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1994#endif
cb50131a
CB		 1995 result = 0;
1996 }
a0d0e21e
LW		 1997 }
1998 else {
cbdc8872 1999 SV *sv = POPs;
1e422769 2000 char *name;
2d8e6c8d 2001 STRLEN n_a;
1e422769 2002
cbdc8872 2003 if (SvTYPE(sv) == SVt_PVGV) {
2004 tmpgv = (GV*)sv; /* *main::FRED for example */
2005 goto do_ftruncate;
2006 }
2007 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2008 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2009 goto do_ftruncate;
2010 }
1e422769 2011
2d8e6c8d 2012 name = SvPV(sv, n_a);
1e422769 2013 TAINT_PROPER("truncate");
cbdc8872 2014#ifdef HAS_TRUNCATE
1e422769 2015 if (truncate(name, len) < 0)
a0d0e21e 2016 result = 0;
cbdc8872 2017#else
2018 {
2019 int tmpfd;
6ad3d225 2020 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 2021 result = 0;
cbdc8872 2022 else {
2023 if (my_chsize(tmpfd, len) < 0)
2024 result = 0;
6ad3d225 2025 PerlLIO_close(tmpfd);
cbdc8872 2026 }
a0d0e21e 2027 }
a0d0e21e 2028#endif
cbdc8872 2029 }
a0d0e21e
LW		 2030
2031 if (result)
2032 RETPUSHYES;
2033 if (!errno)
748a9306 2034 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2035 RETPUSHUNDEF;
2036#else
cea2e8a9 2037 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2038#endif
2039}
2040
2041PP(pp_fcntl)
2042{
cea2e8a9 2043 return pp_ioctl();
a0d0e21e
LW		 2044}
2045
2046PP(pp_ioctl)
2047{
4e35701f 2048 djSP; dTARGET;
748a9306 2049 SV *argsv = POPs;
a0d0e21e 2050 unsigned int func = U_I(POPn);
533c011a 2051 int optype = PL_op->op_type;
a0d0e21e 2052 char *s;
324aa91a 2053 IV retval;
a0d0e21e
LW		 2054 GV *gv = (GV*)POPs;
2055 IO *io = GvIOn(gv);
2056
748a9306
LW		 2057 if (!io || !argsv || !IoIFP(io)) {
2058 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 2059 RETPUSHUNDEF;
2060 }
2061
748a9306 2062 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2063 STRLEN len;
324aa91a 2064 STRLEN need;
748a9306 2065 s = SvPV_force(argsv, len);
324aa91a
HF		 2066 need = IOCPARM_LEN(func);
2067 if (len < need) {
2068 s = Sv_Grow(argsv, need + 1);
2069 SvCUR_set(argsv, need);
a0d0e21e
LW		 2070 }
2071
748a9306 2072 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2073 }
2074 else {
748a9306 2075 retval = SvIV(argsv);
c529f79d 2076 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2077 }
2078
2079 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2080
2081 if (optype == OP_IOCTL)
2082#ifdef HAS_IOCTL
76e3520e 2083 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2084#else
cea2e8a9 2085 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2086#endif
2087 else
55497cff 2088#ifdef HAS_FCNTL
2089#if defined(OS2) && defined(__EMX__)
760ac839 2090 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2091#else
760ac839 2092 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2093#endif
55497cff 2094#else
cea2e8a9 2095 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 2096#endif
2097
748a9306
LW		 2098 if (SvPOK(argsv)) {
2099 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2100 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2101 PL_op_name[optype]);
748a9306
LW		 2102 s[SvCUR(argsv)] = 0; /* put our null back */
2103 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2104 }
2105
2106 if (retval == -1)
2107 RETPUSHUNDEF;
2108 if (retval != 0) {
2109 PUSHi(retval);
2110 }
2111 else {
8903cb82 2112 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2113 }
2114 RETURN;
2115}
2116
2117PP(pp_flock)
2118{
4e35701f 2119 djSP; dTARGET;
a0d0e21e
LW		 2120 I32 value;
2121 int argtype;
2122 GV *gv;
bc37a18f 2123 IO *io = NULL;
760ac839 2124 PerlIO *fp;
16d20bd9 2125
ff68c719 2126#ifdef FLOCK
a0d0e21e 2127 argtype = POPi;
32da55ab 2128 if (MAXARG == 0)
3280af22 2129 gv = PL_last_in_gv;
a0d0e21e
LW		 2130 else
2131 gv = (GV*)POPs;
bc37a18f
RG		 2132 if (gv && (io = GvIO(gv)))
2133 fp = IoIFP(io);
2134 else {
a0d0e21e 2135 fp = Nullfp;
bc37a18f
RG		 2136 io = NULL;
2137 }
a0d0e21e 2138 if (fp) {
68dc0745 2139 (void)PerlIO_flush(fp);
76e3520e 2140 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2141 }
cb50131a 2142 else {
bc37a18f
RG		 2143 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2144 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2145 value = 0;
cb50131a 2146 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2147 }
a0d0e21e
LW		 2148 PUSHi(value);
2149 RETURN;
2150#else
cea2e8a9 2151 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2152#endif
2153}
2154
2155/* Sockets. */
2156
2157PP(pp_socket)
2158{
4e35701f 2159 djSP;
a0d0e21e
LW		 2160#ifdef HAS_SOCKET
2161 GV *gv;
2162 register IO *io;
2163 int protocol = POPi;
2164 int type = POPi;
2165 int domain = POPi;
2166 int fd;
2167
2168 gv = (GV*)POPs;
2169
2170 if (!gv) {
748a9306 2171 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2172 RETPUSHUNDEF;
2173 }
2174
2175 io = GvIOn(gv);
2176 if (IoIFP(io))
2177 do_close(gv, FALSE);
2178
2179 TAINT_PROPER("socket");
6ad3d225 2180 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2181 if (fd < 0)
2182 RETPUSHUNDEF;
760ac839
LW		 2183 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2184 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2185 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2186 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2187 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2188 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2189 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2190 RETPUSHUNDEF;
2191 }
8d2a6795
GS		 2192#if defined(HAS_FCNTL) && defined(F_SETFD)
2193 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2194#endif
a0d0e21e
LW		 2195
2196 RETPUSHYES;
2197#else
cea2e8a9 2198 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2199#endif
2200}
2201
2202PP(pp_sockpair)
2203{
4e35701f 2204 djSP;
a0d0e21e
LW		 2205#ifdef HAS_SOCKETPAIR
2206 GV *gv1;
2207 GV *gv2;
2208 register IO *io1;
2209 register IO *io2;
2210 int protocol = POPi;
2211 int type = POPi;
2212 int domain = POPi;
2213 int fd[2];
2214
2215 gv2 = (GV*)POPs;
2216 gv1 = (GV*)POPs;
2217 if (!gv1 || !gv2)
2218 RETPUSHUNDEF;
2219
2220 io1 = GvIOn(gv1);
2221 io2 = GvIOn(gv2);
2222 if (IoIFP(io1))
2223 do_close(gv1, FALSE);
2224 if (IoIFP(io2))
2225 do_close(gv2, FALSE);
2226
2227 TAINT_PROPER("socketpair");
6ad3d225 2228 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2229 RETPUSHUNDEF;
760ac839
LW		 2230 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2231 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2232 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2233 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2234 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2235 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2236 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2237 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2238 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2239 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2240 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2241 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2242 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2243 RETPUSHUNDEF;
2244 }
8d2a6795
GS		 2245#if defined(HAS_FCNTL) && defined(F_SETFD)
2246 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2247 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2248#endif
a0d0e21e
LW		 2249
2250 RETPUSHYES;
2251#else
cea2e8a9 2252 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2253#endif
2254}
2255
2256PP(pp_bind)
2257{
4e35701f 2258 djSP;
a0d0e21e 2259#ifdef HAS_SOCKET
eec2d3df
GS		 2260#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2261 extern GETPRIVMODE();
2262 extern GETUSERMODE();
2263#endif
748a9306 2264 SV *addrsv = POPs;
a0d0e21e
LW		 2265 char *addr;
2266 GV *gv = (GV*)POPs;
2267 register IO *io = GvIOn(gv);
2268 STRLEN len;
eec2d3df
GS		 2269 int bind_ok = 0;
2270#ifdef MPE
2271 int mpeprivmode = 0;
2272#endif
a0d0e21e
LW		 2273
2274 if (!io || !IoIFP(io))
2275 goto nuts;
2276
748a9306 2277 addr = SvPV(addrsv, len);
a0d0e21e 2278 TAINT_PROPER("bind");
eec2d3df
GS		 2279#ifdef MPE /* Deal with MPE bind() peculiarities */
2280 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2281 /* The address *MUST* stupidly be zero. */
2282 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2283 /* PRIV mode is required to bind() to ports < 1024. */
2284 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2285 ((struct sockaddr_in *)addr)->sin_port > 0) {
2286 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2287 mpeprivmode = 1;
2288 }
2289 }
2290#endif /* MPE */
2291 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2292 (struct sockaddr *)addr, len) >= 0)
2293 bind_ok = 1;
2294
2295#ifdef MPE /* Switch back to USER mode */
2296 if (mpeprivmode)
2297 GETUSERMODE();
2298#endif /* MPE */
2299
2300 if (bind_ok)
a0d0e21e
LW		 2301 RETPUSHYES;
2302 else
2303 RETPUSHUNDEF;
2304
2305nuts:
599cee73 2306 if (ckWARN(WARN_CLOSED))
bc37a18f 2307 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2308 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2309 RETPUSHUNDEF;
2310#else
cea2e8a9 2311 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2312#endif
2313}
2314
2315PP(pp_connect)
2316{
4e35701f 2317 djSP;
a0d0e21e 2318#ifdef HAS_SOCKET
748a9306 2319 SV *addrsv = POPs;
a0d0e21e
LW		 2320 char *addr;
2321 GV *gv = (GV*)POPs;
2322 register IO *io = GvIOn(gv);
2323 STRLEN len;
2324
2325 if (!io || !IoIFP(io))
2326 goto nuts;
2327
748a9306 2328 addr = SvPV(addrsv, len);
a0d0e21e 2329 TAINT_PROPER("connect");
6ad3d225 2330 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2331 RETPUSHYES;
2332 else
2333 RETPUSHUNDEF;
2334
2335nuts:
599cee73 2336 if (ckWARN(WARN_CLOSED))
bc37a18f 2337 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2338 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2339 RETPUSHUNDEF;
2340#else
cea2e8a9 2341 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2342#endif
2343}
2344
2345PP(pp_listen)
2346{
4e35701f 2347 djSP;
a0d0e21e
LW		 2348#ifdef HAS_SOCKET
2349 int backlog = POPi;
2350 GV *gv = (GV*)POPs;
2351 register IO *io = GvIOn(gv);
2352
2353 if (!io || !IoIFP(io))
2354 goto nuts;
2355
6ad3d225 2356 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2357 RETPUSHYES;
2358 else
2359 RETPUSHUNDEF;
2360
2361nuts:
599cee73 2362 if (ckWARN(WARN_CLOSED))
bc37a18f 2363 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2364 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2365 RETPUSHUNDEF;
2366#else
cea2e8a9 2367 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2368#endif
2369}
2370
2371PP(pp_accept)
2372{
4e35701f 2373 djSP; dTARGET;
a0d0e21e
LW		 2374#ifdef HAS_SOCKET
2375 GV *ngv;
2376 GV *ggv;
2377 register IO *nstio;
2378 register IO *gstio;
4633a7c4 2379 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2380 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2381 int fd;
2382
2383 ggv = (GV*)POPs;
2384 ngv = (GV*)POPs;
2385
2386 if (!ngv)
2387 goto badexit;
2388 if (!ggv)
2389 goto nuts;
2390
2391 gstio = GvIO(ggv);
2392 if (!gstio || !IoIFP(gstio))
2393 goto nuts;
2394
2395 nstio = GvIOn(ngv);
2396 if (IoIFP(nstio))
2397 do_close(ngv, FALSE);
2398
6ad3d225 2399 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2400 if (fd < 0)
2401 goto badexit;
760ac839
LW		 2402 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2403 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
50952442 2404 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2405 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2406 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2407 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2408 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2409 goto badexit;
2410 }
8d2a6795
GS		 2411#if defined(HAS_FCNTL) && defined(F_SETFD)
2412 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2413#endif
a0d0e21e 2414
ed79a026
OF		 2415#ifdef EPOC
2416 len = sizeof saddr; /* EPOC somehow truncates info */
2417#endif
2418
748a9306 2419 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2420 RETURN;
2421
2422nuts:
599cee73 2423 if (ckWARN(WARN_CLOSED))
bc37a18f 2424 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2425 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2426
2427badexit:
2428 RETPUSHUNDEF;
2429
2430#else
cea2e8a9 2431 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2432#endif
2433}
2434
2435PP(pp_shutdown)
2436{
4e35701f 2437 djSP; dTARGET;
a0d0e21e
LW		 2438#ifdef HAS_SOCKET
2439 int how = POPi;
2440 GV *gv = (GV*)POPs;
2441 register IO *io = GvIOn(gv);
2442
2443 if (!io || !IoIFP(io))
2444 goto nuts;
2445
6ad3d225 2446 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2447 RETURN;
2448
2449nuts:
599cee73 2450 if (ckWARN(WARN_CLOSED))
bc37a18f 2451 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2452 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2453 RETPUSHUNDEF;
2454#else
cea2e8a9 2455 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2456#endif
2457}
2458
2459PP(pp_gsockopt)
2460{
2461#ifdef HAS_SOCKET
cea2e8a9 2462 return pp_ssockopt();
a0d0e21e 2463#else
cea2e8a9 2464 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2465#endif
2466}
2467
2468PP(pp_ssockopt)
2469{
4e35701f 2470 djSP;
a0d0e21e 2471#ifdef HAS_SOCKET
533c011a 2472 int optype = PL_op->op_type;
a0d0e21e
LW		 2473 SV *sv;
2474 int fd;
2475 unsigned int optname;
2476 unsigned int lvl;
2477 GV *gv;
2478 register IO *io;
1e422769 2479 Sock_size_t len;
a0d0e21e
LW		 2480
2481 if (optype == OP_GSOCKOPT)
2482 sv = sv_2mortal(NEWSV(22, 257));
2483 else
2484 sv = POPs;
2485 optname = (unsigned int) POPi;
2486 lvl = (unsigned int) POPi;
2487
2488 gv = (GV*)POPs;
2489 io = GvIOn(gv);
2490 if (!io || !IoIFP(io))
2491 goto nuts;
2492
760ac839 2493 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2494 switch (optype) {
2495 case OP_GSOCKOPT:
748a9306 2496 SvGROW(sv, 257);
a0d0e21e 2497 (void)SvPOK_only(sv);
748a9306
LW		 2498 SvCUR_set(sv,256);
2499 *SvEND(sv) ='\0';
1e422769 2500 len = SvCUR(sv);
6ad3d225 2501 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2502 goto nuts2;
1e422769 2503 SvCUR_set(sv, len);
748a9306 2504 *SvEND(sv) ='\0';
a0d0e21e
LW		 2505 PUSHs(sv);
2506 break;
2507 case OP_SSOCKOPT: {
1e422769 2508 char *buf;
2509 int aint;
2510 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2511 STRLEN l;
2512 buf = SvPV(sv, l);
2513 len = l;
1e422769 2514 }
56ee1660 2515 else {
a0d0e21e
LW		 2516 aint = (int)SvIV(sv);
2517 buf = (char*)&aint;
2518 len = sizeof(int);
2519 }
6ad3d225 2520 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2521 goto nuts2;
3280af22 2522 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2523 }
2524 break;
2525 }
2526 RETURN;
2527
2528nuts:
599cee73 2529 if (ckWARN(WARN_CLOSED))
bc37a18f 2530 report_evil_fh(gv, io, optype);
748a9306 2531 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2532nuts2:
2533 RETPUSHUNDEF;
2534
2535#else
cea2e8a9 2536 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2537#endif
2538}
2539
2540PP(pp_getsockname)
2541{
2542#ifdef HAS_SOCKET
cea2e8a9 2543 return pp_getpeername();
a0d0e21e 2544#else
cea2e8a9 2545 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2546#endif
2547}
2548
2549PP(pp_getpeername)
2550{
4e35701f 2551 djSP;
a0d0e21e 2552#ifdef HAS_SOCKET
533c011a 2553 int optype = PL_op->op_type;
a0d0e21e
LW		 2554 SV *sv;
2555 int fd;
2556 GV *gv = (GV*)POPs;
2557 register IO *io = GvIOn(gv);
1e422769 2558 Sock_size_t len;
a0d0e21e
LW		 2559
2560 if (!io || !IoIFP(io))
2561 goto nuts;
2562
2563 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2564 (void)SvPOK_only(sv);
1e422769 2565 len = 256;
2566 SvCUR_set(sv, len);
748a9306 2567 *SvEND(sv) ='\0';
760ac839 2568 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2569 switch (optype) {
2570 case OP_GETSOCKNAME:
6ad3d225 2571 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2572 goto nuts2;
2573 break;
2574 case OP_GETPEERNAME:
6ad3d225 2575 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2576 goto nuts2;
490ab354
JH		 2577#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2578 {
2579 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";
2580 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2581 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2582 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2583 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2584 goto nuts2;
490ab354
JH		 2585 }
2586 }
2587#endif
a0d0e21e
LW		 2588 break;
2589 }
13826f2c
CS		 2590#ifdef BOGUS_GETNAME_RETURN
2591 /* Interactive Unix, getpeername() and getsockname()
2592 does not return valid namelen */
1e422769 2593 if (len == BOGUS_GETNAME_RETURN)
2594 len = sizeof(struct sockaddr);
13826f2c 2595#endif
1e422769 2596 SvCUR_set(sv, len);
748a9306 2597 *SvEND(sv) ='\0';
a0d0e21e
LW		 2598 PUSHs(sv);
2599 RETURN;
2600
2601nuts:
599cee73 2602 if (ckWARN(WARN_CLOSED))
bc37a18f 2603 report_evil_fh(gv, io, optype);
748a9306 2604 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2605nuts2:
2606 RETPUSHUNDEF;
2607
2608#else
cea2e8a9 2609 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2610#endif
2611}
2612
2613/* Stat calls. */
2614
2615PP(pp_lstat)
2616{
cea2e8a9 2617 return pp_stat();
a0d0e21e
LW		 2618}
2619
2620PP(pp_stat)
2621{
4e35701f 2622 djSP;
2dd78f96 2623 GV *gv;
54310121 2624 I32 gimme;
a0d0e21e 2625 I32 max = 13;
2d8e6c8d 2626 STRLEN n_a;
a0d0e21e 2627
533c011a 2628 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2629 gv = cGVOP_gv;
8a4e5b40
DD		 2630 if (PL_op->op_type == OP_LSTAT) {
2631 if (PL_laststype != OP_LSTAT)
2632 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2633 if (ckWARN(WARN_IO) && gv != PL_defgv)
2634 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2635 "lstat() on filehandle %s", GvENAME(gv));
8a4e5b40
DD		 2636 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2637 }
2638
748a9306 2639 do_fstat:
2dd78f96 2640 if (gv != PL_defgv) {
3280af22 2641 PL_laststype = OP_STAT;
2dd78f96 2642 PL_statgv = gv;
3280af22 2643 sv_setpv(PL_statname, "");
2dd78f96
JH		 2644 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2645 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2646 }
9ddeeac9 2647 if (PL_laststatval < 0) {
2dd78f96
JH		 2648 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2649 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2650 max = 0;
9ddeeac9 2651 }
a0d0e21e
LW		 2652 }
2653 else {
748a9306
LW		 2654 SV* sv = POPs;
2655 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2656 gv = (GV*)sv;
748a9306
LW		 2657 goto do_fstat;
2658 }
2659 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2660 gv = (GV*)SvRV(sv);
748a9306
LW		 2661 goto do_fstat;
2662 }
2d8e6c8d 2663 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2664 PL_statgv = Nullgv;
a0d0e21e 2665#ifdef HAS_LSTAT
533c011a
NIS		 2666 PL_laststype = PL_op->op_type;
2667 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2668 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2669 else
2670#endif
2d8e6c8d 2671 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2672 if (PL_laststatval < 0) {
2d8e6c8d 2673 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2674 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2675 max = 0;
2676 }
2677 }
2678
54310121 2679 gimme = GIMME_V;
2680 if (gimme != G_ARRAY) {
2681 if (gimme != G_VOID)
2682 XPUSHs(boolSV(max));
2683 RETURN;
a0d0e21e
LW		 2684 }
2685 if (max) {
36477c24 2686 EXTEND(SP, max);
2687 EXTEND_MORTAL(max);
1ff81528
PL		 2688 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2689 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2690 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2691 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2692#if Uid_t_size > IVSIZE
2693 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2694#else
23dcd6c8 2695# if Uid_t_sign <= 0
1ff81528 2696 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2697# else
2698 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2699# endif
146174a9 2700#endif
301e8125 2701#if Gid_t_size > IVSIZE
146174a9
CB		 2702 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2703#else
23dcd6c8 2704# if Gid_t_sign <= 0
1ff81528 2705 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2706# else
2707 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2708# endif
146174a9 2709#endif
cbdc8872 2710#ifdef USE_STAT_RDEV
1ff81528 2711 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2712#else
79cb57f6 2713 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2714#endif
146174a9
CB		 2715#if Off_t_size > IVSIZE
2716 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2717#else
1ff81528 2718 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2719#endif
cbdc8872 2720#ifdef BIG_TIME
172ae379
JH		 2721 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2722 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2723 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2724#else
1ff81528
PL		 2725 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2726 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2727 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2728#endif
a0d0e21e 2729#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2730 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2731 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2732#else
79cb57f6
GS		 2733 PUSHs(sv_2mortal(newSVpvn("", 0)));
2734 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2735#endif
2736 }
2737 RETURN;
2738}
2739
2740PP(pp_ftrread)
2741{
5ff3f7a4 2742 I32 result;
4e35701f 2743 djSP;
5ff3f7a4 2744#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2745 STRLEN n_a;
5ff3f7a4 2746 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2747 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2748 if (result == 0)
2749 RETPUSHYES;
2750 if (result < 0)
2751 RETPUSHUNDEF;
2752 RETPUSHNO;
22865c03
GS		 2753 }
2754 else
cea2e8a9 2755 result = my_stat();
5ff3f7a4 2756#else
cea2e8a9 2757 result = my_stat();
5ff3f7a4 2758#endif
22865c03 2759 SPAGAIN;
a0d0e21e
LW		 2760 if (result < 0)
2761 RETPUSHUNDEF;
3280af22 2762 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2763 RETPUSHYES;
2764 RETPUSHNO;
2765}
2766
2767PP(pp_ftrwrite)
2768{
5ff3f7a4 2769 I32 result;
4e35701f 2770 djSP;
5ff3f7a4 2771#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2772 STRLEN n_a;
5ff3f7a4 2773 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2774 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2775 if (result == 0)
2776 RETPUSHYES;
2777 if (result < 0)
2778 RETPUSHUNDEF;
2779 RETPUSHNO;
22865c03
GS		 2780 }
2781 else
cea2e8a9 2782 result = my_stat();
5ff3f7a4 2783#else
cea2e8a9 2784 result = my_stat();
5ff3f7a4 2785#endif
22865c03 2786 SPAGAIN;
a0d0e21e
LW		 2787 if (result < 0)
2788 RETPUSHUNDEF;
3280af22 2789 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2790 RETPUSHYES;
2791 RETPUSHNO;
2792}
2793
2794PP(pp_ftrexec)
2795{
5ff3f7a4 2796 I32 result;
4e35701f 2797 djSP;
5ff3f7a4 2798#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2799 STRLEN n_a;
5ff3f7a4 2800 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2801 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2802 if (result == 0)
2803 RETPUSHYES;
2804 if (result < 0)
2805 RETPUSHUNDEF;
2806 RETPUSHNO;
22865c03
GS		 2807 }
2808 else
cea2e8a9 2809 result = my_stat();
5ff3f7a4 2810#else
cea2e8a9 2811 result = my_stat();
5ff3f7a4 2812#endif
22865c03 2813 SPAGAIN;
a0d0e21e
LW		 2814 if (result < 0)
2815 RETPUSHUNDEF;
3280af22 2816 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2817 RETPUSHYES;
2818 RETPUSHNO;
2819}
2820
2821PP(pp_fteread)
2822{
5ff3f7a4 2823 I32 result;
4e35701f 2824 djSP;
5ff3f7a4 2825#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2826 STRLEN n_a;
5ff3f7a4 2827 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2828 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2829 if (result == 0)
2830 RETPUSHYES;
2831 if (result < 0)
2832 RETPUSHUNDEF;
2833 RETPUSHNO;
22865c03
GS		 2834 }
2835 else
cea2e8a9 2836 result = my_stat();
5ff3f7a4 2837#else
cea2e8a9 2838 result = my_stat();
5ff3f7a4 2839#endif
22865c03 2840 SPAGAIN;
a0d0e21e
LW		 2841 if (result < 0)
2842 RETPUSHUNDEF;
3280af22 2843 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2844 RETPUSHYES;
2845 RETPUSHNO;
2846}
2847
2848PP(pp_ftewrite)
2849{
5ff3f7a4 2850 I32 result;
4e35701f 2851 djSP;
5ff3f7a4 2852#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2853 STRLEN n_a;
5ff3f7a4 2854 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2855 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2856 if (result == 0)
2857 RETPUSHYES;
2858 if (result < 0)
2859 RETPUSHUNDEF;
2860 RETPUSHNO;
22865c03
GS		 2861 }
2862 else
cea2e8a9 2863 result = my_stat();
5ff3f7a4 2864#else
cea2e8a9 2865 result = my_stat();
5ff3f7a4 2866#endif
22865c03 2867 SPAGAIN;
a0d0e21e
LW		 2868 if (result < 0)
2869 RETPUSHUNDEF;
3280af22 2870 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2871 RETPUSHYES;
2872 RETPUSHNO;
2873}
2874
2875PP(pp_fteexec)
2876{
5ff3f7a4 2877 I32 result;
4e35701f 2878 djSP;
5ff3f7a4 2879#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2880 STRLEN n_a;
5ff3f7a4 2881 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2882 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2883 if (result == 0)
2884 RETPUSHYES;
2885 if (result < 0)
2886 RETPUSHUNDEF;
2887 RETPUSHNO;
22865c03
GS		 2888 }
2889 else
cea2e8a9 2890 result = my_stat();
5ff3f7a4 2891#else
cea2e8a9 2892 result = my_stat();
5ff3f7a4 2893#endif
22865c03 2894 SPAGAIN;
a0d0e21e
LW		 2895 if (result < 0)
2896 RETPUSHUNDEF;
3280af22 2897 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2898 RETPUSHYES;
2899 RETPUSHNO;
2900}
2901
2902PP(pp_ftis)
2903{
cea2e8a9 2904 I32 result = my_stat();
4e35701f 2905 djSP;
a0d0e21e
LW		 2906 if (result < 0)
2907 RETPUSHUNDEF;
2908 RETPUSHYES;
2909}
2910
2911PP(pp_fteowned)
2912{
cea2e8a9 2913 return pp_ftrowned();
a0d0e21e
LW		 2914}
2915
2916PP(pp_ftrowned)
2917{
cea2e8a9 2918 I32 result = my_stat();
4e35701f 2919 djSP;
a0d0e21e
LW		 2920 if (result < 0)
2921 RETPUSHUNDEF;
146174a9
CB		 2922 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2923 PL_euid : PL_uid) )
a0d0e21e
LW		 2924 RETPUSHYES;
2925 RETPUSHNO;
2926}
2927
2928PP(pp_ftzero)
2929{
cea2e8a9 2930 I32 result = my_stat();
4e35701f 2931 djSP;
a0d0e21e
LW		 2932 if (result < 0)
2933 RETPUSHUNDEF;
146174a9 2934 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2935 RETPUSHYES;
2936 RETPUSHNO;
2937}
2938
2939PP(pp_ftsize)
2940{
cea2e8a9 2941 I32 result = my_stat();
4e35701f 2942 djSP; dTARGET;
a0d0e21e
LW		 2943 if (result < 0)
2944 RETPUSHUNDEF;
146174a9
CB		 2945#if Off_t_size > IVSIZE
2946 PUSHn(PL_statcache.st_size);
2947#else
3280af22 2948 PUSHi(PL_statcache.st_size);
146174a9 2949#endif
a0d0e21e
LW		 2950 RETURN;
2951}
2952
2953PP(pp_ftmtime)
2954{
cea2e8a9 2955 I32 result = my_stat();
4e35701f 2956 djSP; dTARGET;
a0d0e21e
LW		 2957 if (result < 0)
2958 RETPUSHUNDEF;
c6419e06 2959 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2960 RETURN;
2961}
2962
2963PP(pp_ftatime)
2964{
cea2e8a9 2965 I32 result = my_stat();
4e35701f 2966 djSP; dTARGET;
a0d0e21e
LW		 2967 if (result < 0)
2968 RETPUSHUNDEF;
c6419e06 2969 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 2970 RETURN;
2971}
2972
2973PP(pp_ftctime)
2974{
cea2e8a9 2975 I32 result = my_stat();
4e35701f 2976 djSP; dTARGET;
a0d0e21e
LW		 2977 if (result < 0)
2978 RETPUSHUNDEF;
c6419e06 2979 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 2980 RETURN;
2981}
2982
2983PP(pp_ftsock)
2984{
cea2e8a9 2985 I32 result = my_stat();
4e35701f 2986 djSP;
a0d0e21e
LW		 2987 if (result < 0)
2988 RETPUSHUNDEF;
3280af22 2989 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 2990 RETPUSHYES;
2991 RETPUSHNO;
2992}
2993
2994PP(pp_ftchr)
2995{
cea2e8a9 2996 I32 result = my_stat();
4e35701f 2997 djSP;
a0d0e21e
LW		 2998 if (result < 0)
2999 RETPUSHUNDEF;
3280af22 3000 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3001 RETPUSHYES;
3002 RETPUSHNO;
3003}
3004
3005PP(pp_ftblk)
3006{
cea2e8a9 3007 I32 result = my_stat();
4e35701f 3008 djSP;
a0d0e21e
LW		 3009 if (result < 0)
3010 RETPUSHUNDEF;
3280af22 3011 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3012 RETPUSHYES;
3013 RETPUSHNO;
3014}
3015
3016PP(pp_ftfile)
3017{
cea2e8a9 3018 I32 result = my_stat();
4e35701f 3019 djSP;
a0d0e21e
LW		 3020 if (result < 0)
3021 RETPUSHUNDEF;
3280af22 3022 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3023 RETPUSHYES;
3024 RETPUSHNO;
3025}
3026
3027PP(pp_ftdir)
3028{
cea2e8a9 3029 I32 result = my_stat();
4e35701f 3030 djSP;
a0d0e21e
LW		 3031 if (result < 0)
3032 RETPUSHUNDEF;
3280af22 3033 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3034 RETPUSHYES;
3035 RETPUSHNO;
3036}
3037
3038PP(pp_ftpipe)
3039{
cea2e8a9 3040 I32 result = my_stat();
4e35701f 3041 djSP;
a0d0e21e
LW		 3042 if (result < 0)
3043 RETPUSHUNDEF;
3280af22 3044 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3045 RETPUSHYES;
3046 RETPUSHNO;
3047}
3048
3049PP(pp_ftlink)
3050{
cea2e8a9 3051 I32 result = my_lstat();
4e35701f 3052 djSP;
a0d0e21e
LW		 3053 if (result < 0)
3054 RETPUSHUNDEF;
3280af22 3055 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3056 RETPUSHYES;
3057 RETPUSHNO;
3058}
3059
3060PP(pp_ftsuid)
3061{
4e35701f 3062 djSP;
a0d0e21e 3063#ifdef S_ISUID
cea2e8a9 3064 I32 result = my_stat();
a0d0e21e
LW		 3065 SPAGAIN;
3066 if (result < 0)
3067 RETPUSHUNDEF;
3280af22 3068 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3069 RETPUSHYES;
3070#endif
3071 RETPUSHNO;
3072}
3073
3074PP(pp_ftsgid)
3075{
4e35701f 3076 djSP;
a0d0e21e 3077#ifdef S_ISGID
cea2e8a9 3078 I32 result = my_stat();
a0d0e21e
LW		 3079 SPAGAIN;
3080 if (result < 0)
3081 RETPUSHUNDEF;
3280af22 3082 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3083 RETPUSHYES;
3084#endif
3085 RETPUSHNO;
3086}
3087
3088PP(pp_ftsvtx)
3089{
4e35701f 3090 djSP;
a0d0e21e 3091#ifdef S_ISVTX
cea2e8a9 3092 I32 result = my_stat();
a0d0e21e
LW		 3093 SPAGAIN;
3094 if (result < 0)
3095 RETPUSHUNDEF;
3280af22 3096 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3097 RETPUSHYES;
3098#endif
3099 RETPUSHNO;
3100}
3101
3102PP(pp_fttty)
3103{
4e35701f 3104 djSP;
a0d0e21e
LW		 3105 int fd;
3106 GV *gv;
fb73857a 3107 char *tmps = Nullch;
2d8e6c8d 3108 STRLEN n_a;
fb73857a 3109
533c011a 3110 if (PL_op->op_flags & OPf_REF)
146174a9 3111 gv = cGVOP_gv;
fb73857a 3112 else if (isGV(TOPs))
3113 gv = (GV*)POPs;
3114 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3115 gv = (GV*)SvRV(POPs);
a0d0e21e 3116 else
2d8e6c8d 3117 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3118
a0d0e21e 3119 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3120 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3121 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3122 fd = atoi(tmps);
3123 else
3124 RETPUSHUNDEF;
6ad3d225 3125 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3126 RETPUSHYES;
3127 RETPUSHNO;
3128}
3129
16d20bd9
AD		 3130#if defined(atarist) /* this will work with atariST. Configure will
3131 make guesses for other systems. */
3132# define FILE_base(f) ((f)->_base)
3133# define FILE_ptr(f) ((f)->_ptr)
3134# define FILE_cnt(f) ((f)->_cnt)
3135# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3136#endif
3137
3138PP(pp_fttext)
3139{
4e35701f 3140 djSP;
a0d0e21e
LW		 3141 I32 i;
3142 I32 len;
3143 I32 odd = 0;
3144 STDCHAR tbuf[512];
3145 register STDCHAR *s;
3146 register IO *io;
5f05dabc 3147 register SV *sv;
3148 GV *gv;
2d8e6c8d 3149 STRLEN n_a;
146174a9 3150 PerlIO *fp;
a0d0e21e 3151
533c011a 3152 if (PL_op->op_flags & OPf_REF)
146174a9 3153 gv = cGVOP_gv;
5f05dabc 3154 else if (isGV(TOPs))
3155 gv = (GV*)POPs;
3156 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3157 gv = (GV*)SvRV(POPs);
3158 else
3159 gv = Nullgv;
3160
3161 if (gv) {
a0d0e21e 3162 EXTEND(SP, 1);
3280af22
NIS		 3163 if (gv == PL_defgv) {
3164 if (PL_statgv)
3165 io = GvIO(PL_statgv);
a0d0e21e 3166 else {
3280af22 3167 sv = PL_statname;
a0d0e21e
LW		 3168 goto really_filename;
3169 }
3170 }
3171 else {
3280af22
NIS		 3172 PL_statgv = gv;
3173 PL_laststatval = -1;
3174 sv_setpv(PL_statname, "");
3175 io = GvIO(PL_statgv);
a0d0e21e
LW		 3176 }
3177 if (io && IoIFP(io)) {
5f05dabc 3178 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3179 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3180 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3181 if (PL_laststatval < 0)
5f05dabc 3182 RETPUSHUNDEF;
3280af22 3183 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
533c011a 3184 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3185 RETPUSHNO;
3186 else
3187 RETPUSHYES;
a20bf0c3 3188 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3189 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3190 if (i != EOF)
760ac839 3191 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3192 }
a20bf0c3 3193 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3194 RETPUSHYES;
a20bf0c3
JH		 3195 len = PerlIO_get_bufsiz(IoIFP(io));
3196 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3197 /* sfio can have large buffers - limit to 512 */
3198 if (len > 512)
3199 len = 512;
a0d0e21e
LW		 3200 }
3201 else {
2dd78f96 3202 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3203 gv = cGVOP_gv;
2dd78f96 3204 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3205 }
748a9306 3206 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3207 RETPUSHUNDEF;
3208 }
3209 }
3210 else {
3211 sv = POPs;
5f05dabc 3212 really_filename:
3280af22
NIS		 3213 PL_statgv = Nullgv;
3214 PL_laststatval = -1;
2d8e6c8d 3215 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3216 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3217 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3218 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3219 RETPUSHUNDEF;
3220 }
146174a9
CB		 3221 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3222 if (PL_laststatval < 0) {
3223 (void)PerlIO_close(fp);
5f05dabc 3224 RETPUSHUNDEF;
146174a9 3225 }
60382766 3226 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3227 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3228 (void)PerlIO_close(fp);
a0d0e21e 3229 if (len <= 0) {
533c011a 3230 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3231 RETPUSHNO; /* special case NFS directories */
3232 RETPUSHYES; /* null file is anything */
3233 }
3234 s = tbuf;
3235 }
3236
3237 /* now scan s to look for textiness */
4633a7c4 3238 /* XXX ASCII dependent code */
a0d0e21e 3239
146174a9
CB		 3240#if defined(DOSISH) || defined(USEMYBINMODE)
3241 /* ignore trailing ^Z on short files */
3242 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3243 --len;
3244#endif
3245
a0d0e21e
LW		 3246 for (i = 0; i < len; i++, s++) {
3247 if (!*s) { /* null never allowed in text */
3248 odd += len;
3249 break;
3250 }
9d116dd7 3251#ifdef EBCDIC
301e8125 3252 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3253 odd++;
3254#else
146174a9
CB		 3255 else if (*s & 128) {
3256#ifdef USE_LOCALE
b3f66c68
GS		 3257 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3258 continue;
3259#endif
3260 /* utf8 characters don't count as odd */
3261 if (*s & 0x40) {
3262 int ulen = UTF8SKIP(s);
3263 if (ulen < len - i) {
3264 int j;
3265 for (j = 1; j < ulen; j++) {
3266 if ((s[j] & 0xc0) != 0x80)
3267 goto not_utf8;
3268 }
3269 --ulen; /* loop does extra increment */
3270 s += ulen;
3271 i += ulen;
3272 continue;
3273 }
3274 }
3275 not_utf8:
3276 odd++;
146174a9 3277 }
a0d0e21e
LW		 3278 else if (*s < 32 &&
3279 *s != '\n' && *s != '\r' && *s != '\b' &&
3280 *s != '\t' && *s != '\f' && *s != 27)
3281 odd++;
9d116dd7 3282#endif
a0d0e21e
LW		 3283 }
3284
533c011a 3285 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3286 RETPUSHNO;
3287 else
3288 RETPUSHYES;
3289}
3290
3291PP(pp_ftbinary)
3292{
cea2e8a9 3293 return pp_fttext();
a0d0e21e
LW		 3294}
3295
3296/* File calls. */
3297
3298PP(pp_chdir)
3299{
4e35701f 3300 djSP; dTARGET;
a0d0e21e
LW		 3301 char *tmps;
3302 SV **svp;
2d8e6c8d 3303 STRLEN n_a;
a0d0e21e
LW		 3304
3305 if (MAXARG < 1)
3306 tmps = Nullch;
3307 else
2d8e6c8d 3308 tmps = POPpx;
a0d0e21e 3309 if (!tmps || !*tmps) {
3280af22 3310 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3311 if (svp)
2d8e6c8d 3312 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3313 }
3314 if (!tmps || !*tmps) {
3280af22 3315 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3316 if (svp)
2d8e6c8d 3317 tmps = SvPV(*svp, n_a);
a0d0e21e 3318 }
491527d0
GS		 3319#ifdef VMS
3320 if (!tmps || !*tmps) {
6b88bc9c 3321 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3322 if (svp)
2d8e6c8d 3323 tmps = SvPV(*svp, n_a);
491527d0
GS		 3324 }
3325#endif
a0d0e21e 3326 TAINT_PROPER("chdir");
6ad3d225 3327 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3328#ifdef VMS
3329 /* Clear the DEFAULT element of ENV so we'll get the new value
3330 * in the future. */
6b88bc9c 3331 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3332#endif
a0d0e21e
LW		 3333 RETURN;
3334}
3335
3336PP(pp_chown)
3337{
4e35701f 3338 djSP; dMARK; dTARGET;
a0d0e21e
LW		 3339 I32 value;
3340#ifdef HAS_CHOWN
533c011a 3341 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3342 SP = MARK;
3343 PUSHi(value);
3344 RETURN;
3345#else
cea2e8a9 3346 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3347#endif
3348}
3349
3350PP(pp_chroot)
3351{
4e35701f 3352 djSP; dTARGET;
a0d0e21e
LW		 3353 char *tmps;
3354#ifdef HAS_CHROOT
2d8e6c8d
GS		 3355 STRLEN n_a;
3356 tmps = POPpx;
a0d0e21e
LW		 3357 TAINT_PROPER("chroot");
3358 PUSHi( chroot(tmps) >= 0 );
3359 RETURN;
3360#else
cea2e8a9 3361 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3362#endif
3363}
3364
3365PP(pp_unlink)
3366{
4e35701f 3367 djSP; dMARK; dTARGET;
a0d0e21e 3368 I32 value;
533c011a 3369 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3370 SP = MARK;
3371 PUSHi(value);
3372 RETURN;
3373}
3374
3375PP(pp_chmod)
3376{
4e35701f 3377 djSP; dMARK; dTARGET;
a0d0e21e 3378 I32 value;
533c011a 3379 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3380 SP = MARK;
3381 PUSHi(value);
3382 RETURN;
3383}
3384
3385PP(pp_utime)
3386{
4e35701f 3387 djSP; dMARK; dTARGET;
a0d0e21e 3388 I32 value;
533c011a 3389 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3390 SP = MARK;
3391 PUSHi(value);
3392 RETURN;
3393}
3394
3395PP(pp_rename)
3396{
4e35701f 3397 djSP; dTARGET;
a0d0e21e 3398 int anum;
2d8e6c8d 3399 STRLEN n_a;
a0d0e21e 3400
2d8e6c8d
GS		 3401 char *tmps2 = POPpx;
3402 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3403 TAINT_PROPER("rename");
3404#ifdef HAS_RENAME
baed7233 3405 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3406#else
6b88bc9c 3407 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3408 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3409 anum = 1;
3410 else {
3654eb6c 3411 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3412 (void)UNLINK(tmps2);
3413 if (!(anum = link(tmps, tmps2)))
3414 anum = UNLINK(tmps);
3415 }
a0d0e21e
LW		 3416 }
3417#endif
3418 SETi( anum >= 0 );
3419 RETURN;
3420}
3421
3422PP(pp_link)
3423{
4e35701f 3424 djSP; dTARGET;
a0d0e21e 3425#ifdef HAS_LINK
2d8e6c8d
GS		 3426 STRLEN n_a;
3427 char *tmps2 = POPpx;
3428 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3429 TAINT_PROPER("link");
146174a9 3430 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3431#else
cea2e8a9 3432 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3433#endif
3434 RETURN;
3435}
3436
3437PP(pp_symlink)
3438{
4e35701f 3439 djSP; dTARGET;
a0d0e21e 3440#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3441 STRLEN n_a;
3442 char *tmps2 = POPpx;
3443 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3444 TAINT_PROPER("symlink");
3445 SETi( symlink(tmps, tmps2) >= 0 );
3446 RETURN;
3447#else
cea2e8a9 3448 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3449#endif
3450}
3451
3452PP(pp_readlink)
3453{
4e35701f 3454 djSP; dTARGET;
a0d0e21e
LW		 3455#ifdef HAS_SYMLINK
3456 char *tmps;
46fc3d4c 3457 char buf[MAXPATHLEN];
a0d0e21e 3458 int len;
2d8e6c8d 3459 STRLEN n_a;
46fc3d4c 3460
fb73857a 3461#ifndef INCOMPLETE_TAINTS
3462 TAINT;
3463#endif
2d8e6c8d 3464 tmps = POPpx;
a0d0e21e
LW		 3465 len = readlink(tmps, buf, sizeof buf);
3466 EXTEND(SP, 1);
3467 if (len < 0)
3468 RETPUSHUNDEF;
3469 PUSHp(buf, len);
3470 RETURN;
3471#else
3472 EXTEND(SP, 1);
3473 RETSETUNDEF; /* just pretend it's a normal file */
3474#endif
3475}
3476
3477#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3478STATIC int
cea2e8a9 3479S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3480{
1e422769 3481 char *save_filename = filename;
3482 char *cmdline;
3483 char *s;
760ac839 3484 PerlIO *myfp;
1e422769 3485 int anum = 1;
a0d0e21e 3486
1e422769 3487 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3488 strcpy(cmdline, cmd);
3489 strcat(cmdline, " ");
3490 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3491 *s++ = '\\';
3492 *s++ = *filename++;
3493 }
3494 strcpy(s, " 2>&1");
6ad3d225 3495 myfp = PerlProc_popen(cmdline, "r");
1e422769 3496 Safefree(cmdline);
3497
a0d0e21e 3498 if (myfp) {
1e422769 3499 SV *tmpsv = sv_newmortal();
6b88bc9c 3500 /* Need to save/restore 'PL_rs' ?? */
760ac839 3501 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3502 (void)PerlProc_pclose(myfp);
a0d0e21e 3503 if (s != Nullch) {
1e422769 3504 int e;
3505 for (e = 1;
a0d0e21e 3506#ifdef HAS_SYS_ERRLIST
1e422769 3507 e <= sys_nerr
3508#endif
3509 ; e++)
3510 {
3511 /* you don't see this */
3512 char *errmsg =
3513#ifdef HAS_SYS_ERRLIST
3514 sys_errlist[e]
a0d0e21e 3515#else
1e422769 3516 strerror(e)
a0d0e21e 3517#endif
1e422769 3518 ;
3519 if (!errmsg)
3520 break;
3521 if (instr(s, errmsg)) {
3522 SETERRNO(e,0);
3523 return 0;
3524 }
a0d0e21e 3525 }
748a9306 3526 SETERRNO(0,0);
a0d0e21e
LW		 3527#ifndef EACCES
3528#define EACCES EPERM
3529#endif
1e422769 3530 if (instr(s, "cannot make"))
748a9306 3531 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3532 else if (instr(s, "existing file"))
748a9306 3533 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3534 else if (instr(s, "ile exists"))
748a9306 3535 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3536 else if (instr(s, "non-exist"))
748a9306 3537 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3538 else if (instr(s, "does not exist"))
748a9306 3539 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3540 else if (instr(s, "not empty"))
748a9306 3541 SETERRNO(EBUSY,SS$_DEVOFFLINE);
1e422769 3542 else if (instr(s, "cannot access"))
748a9306 3543 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 3544 else
748a9306 3545 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 3546 return 0;
3547 }
3548 else { /* some mkdirs return no failure indication */
6b88bc9c 3549 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3550 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3551 anum = !anum;
3552 if (anum)
748a9306 3553 SETERRNO(0,0);
a0d0e21e 3554 else
748a9306 3555 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 3556 }
3557 return anum;
3558 }
3559 else
3560 return 0;
3561}
3562#endif
3563
3564PP(pp_mkdir)
3565{
4e35701f 3566 djSP; dTARGET;
5a211162 3567 int mode;
a0d0e21e
LW