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[patch perl@8133] Typo in my Net::Ping doc patch :(
[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);
712 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
55497cff 713 RETPUSHUNDEF;
a0d0e21e 714
60382766
NIS		 715 if (discp) {
716 names = SvPV(discp,len);
717 }
718
719 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
720 (discp) ? SvPV_nolen(discp) : Nullch))
a0d0e21e
LW		 721 RETPUSHYES;
722 else
723 RETPUSHUNDEF;
a0d0e21e
LW		 724}
725
726PP(pp_tie)
727{
4e35701f 728 djSP;
e336de0d 729 dMARK;
a0d0e21e
LW		 730 SV *varsv;
731 HV* stash;
732 GV *gv;
a0d0e21e 733 SV *sv;
3280af22 734 I32 markoff = MARK - PL_stack_base;
a0d0e21e 735 char *methname;
6b05c17a 736 int how = 'P';
e336de0d 737 U32 items;
2d8e6c8d 738 STRLEN n_a;
a0d0e21e 739
e336de0d 740 varsv = *++MARK;
6b05c17a
NIS		 741 switch(SvTYPE(varsv)) {
742 case SVt_PVHV:
743 methname = "TIEHASH";
744 break;
745 case SVt_PVAV:
746 methname = "TIEARRAY";
747 break;
748 case SVt_PVGV:
749 methname = "TIEHANDLE";
750 how = 'q';
751 break;
752 default:
753 methname = "TIESCALAR";
754 how = 'q';
755 break;
756 }
e336de0d
GS		 757 items = SP - MARK++;
758 if (sv_isobject(*MARK)) {
6b05c17a 759 ENTER;
e788e7d3 760 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 761 PUSHMARK(SP);
762 EXTEND(SP,items);
763 while (items--)
764 PUSHs(*MARK++);
765 PUTBACK;
864dbfa3 766 call_method(methname, G_SCALAR);
301e8125 767 }
6b05c17a 768 else {
864dbfa3 769 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 770 * perhaps to get different error message ?
771 */
e336de0d 772 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 773 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 774 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 775 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 776 }
777 ENTER;
e788e7d3 778 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 779 PUSHMARK(SP);
780 EXTEND(SP,items);
781 while (items--)
782 PUSHs(*MARK++);
783 PUTBACK;
864dbfa3 784 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 785 }
a0d0e21e
LW		 786 SPAGAIN;
787
788 sv = TOPs;
d3acc0f7 789 POPSTACK;
a0d0e21e 790 if (sv_isobject(sv)) {
33c27489 791 sv_unmagic(varsv, how);
ae21d580
JH		 792 /* Croak if a self-tie on an aggregate is attempted. */
793 if (varsv == SvRV(sv) &&
794 (SvTYPE(sv) == SVt_PVAV ||
795 SvTYPE(sv) == SVt_PVHV))
796 Perl_croak(aTHX_
797 "Self-ties of arrays and hashes are not supported");
68a4a7e4 798 sv_magic(varsv, sv, how, Nullch, 0);
a0d0e21e
LW		 799 }
800 LEAVE;
3280af22 801 SP = PL_stack_base + markoff;
a0d0e21e
LW		 802 PUSHs(sv);
803 RETURN;
804}
805
806PP(pp_untie)
807{
4e35701f 808 djSP;
33c27489
GS		 809 SV *sv = POPs;
810 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
55497cff 811
cbdc8872 812 MAGIC * mg ;
155aba94 813 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 814 SV *obj = SvRV(mg->mg_obj);
815 GV *gv;
816 CV *cv = NULL;
a29a5827
NIS		 817 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
818 isGV(gv) && (cv = GvCV(gv))) {
819 PUSHMARK(SP);
820 XPUSHs(SvTIED_obj((SV*)gv, mg));
301e8125 821 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
a29a5827
NIS		 822 PUTBACK;
823 ENTER;
824 call_sv((SV *)cv, G_VOID);
825 LEAVE;
826 SPAGAIN;
cbdc8872 827 }
301e8125
NIS		 828 else if (ckWARN(WARN_UNTIE)) {
829 if (mg && SvREFCNT(obj) > 1)
830 Perl_warner(aTHX_ WARN_UNTIE,
831 "untie attempted while %"UVuf" inner references still exist",
832 (UV)SvREFCNT(obj) - 1 ) ;
833 }
cbdc8872 834 }
33c27489 835 sv_unmagic(sv, how);
55497cff 836 RETPUSHYES;
a0d0e21e
LW		 837}
838
c07a80fd 839PP(pp_tied)
840{
4e35701f 841 djSP;
33c27489
GS		 842 SV *sv = POPs;
843 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
844 MAGIC *mg;
c07a80fd 845
155aba94 846 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 847 SV *osv = SvTIED_obj(sv, mg);
848 if (osv == mg->mg_obj)
849 osv = sv_mortalcopy(osv);
850 PUSHs(osv);
851 RETURN;
c07a80fd 852 }
c07a80fd 853 RETPUSHUNDEF;
854}
855
a0d0e21e
LW		 856PP(pp_dbmopen)
857{
4e35701f 858 djSP;
a0d0e21e
LW		 859 HV *hv;
860 dPOPPOPssrl;
861 HV* stash;
862 GV *gv;
a0d0e21e
LW		 863 SV *sv;
864
865 hv = (HV*)POPs;
866
3280af22 867 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 868 sv_setpv(sv, "AnyDBM_File");
869 stash = gv_stashsv(sv, FALSE);
8ebc5c01 870 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 871 PUTBACK;
864dbfa3 872 require_pv("AnyDBM_File.pm");
a0d0e21e 873 SPAGAIN;
8ebc5c01 874 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 875 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 876 }
877
57d3b86d 878 ENTER;
924508f0 879 PUSHMARK(SP);
6b05c17a 880
924508f0 881 EXTEND(SP, 5);
a0d0e21e
LW		 882 PUSHs(sv);
883 PUSHs(left);
884 if (SvIV(right))
b448e4fe 885 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 886 else
b448e4fe 887 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 888 PUSHs(right);
57d3b86d 889 PUTBACK;
864dbfa3 890 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 891 SPAGAIN;
892
893 if (!sv_isobject(TOPs)) {
924508f0
GS		 894 SP--;
895 PUSHMARK(SP);
a0d0e21e
LW		 896 PUSHs(sv);
897 PUSHs(left);
b448e4fe 898 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 899 PUSHs(right);
a0d0e21e 900 PUTBACK;
864dbfa3 901 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 902 SPAGAIN;
903 }
904
6b05c17a 905 if (sv_isobject(TOPs)) {
301e8125 906 sv_unmagic((SV *) hv, 'P');
a0d0e21e 907 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 908 }
a0d0e21e
LW		 909 LEAVE;
910 RETURN;
911}
912
913PP(pp_dbmclose)
914{
cea2e8a9 915 return pp_untie();
a0d0e21e
LW		 916}
917
918PP(pp_sselect)
919{
4e35701f 920 djSP; dTARGET;
a0d0e21e
LW		 921#ifdef HAS_SELECT
922 register I32 i;
923 register I32 j;
924 register char *s;
925 register SV *sv;
65202027 926 NV value;
a0d0e21e
LW		 927 I32 maxlen = 0;
928 I32 nfound;
929 struct timeval timebuf;
930 struct timeval *tbuf = &timebuf;
931 I32 growsize;
932 char *fd_sets[4];
2d8e6c8d 933 STRLEN n_a;
a0d0e21e
LW		 934#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
935 I32 masksize;
936 I32 offset;
937 I32 k;
938
939# if BYTEORDER & 0xf0000
940# define ORDERBYTE (0x88888888 - BYTEORDER)
941# else
942# define ORDERBYTE (0x4444 - BYTEORDER)
943# endif
944
945#endif
946
947 SP -= 4;
948 for (i = 1; i <= 3; i++) {
949 if (!SvPOK(SP[i]))
950 continue;
951 j = SvCUR(SP[i]);
952 if (maxlen < j)
953 maxlen = j;
954 }
955
5ff3f7a4 956/* little endians can use vecs directly */
a0d0e21e 957#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 958# if SELECT_MIN_BITS > 1
f2da832e
JH		 959 /* If SELECT_MIN_BITS is greater than one we most probably will want
960 * to align the sizes with SELECT_MIN_BITS/8 because for example
961 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 962 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 963 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 964 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 965# else
4633a7c4 966 growsize = sizeof(fd_set);
5ff3f7a4
GS		 967# endif
968# else
969# ifdef NFDBITS
a0d0e21e 970
5ff3f7a4
GS		 971# ifndef NBBY
972# define NBBY 8
973# endif
a0d0e21e
LW		 974
975 masksize = NFDBITS / NBBY;
5ff3f7a4 976# else
a0d0e21e 977 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 978# endif
a0d0e21e
LW		 979 growsize = maxlen + (masksize - (maxlen % masksize));
980 Zero(&fd_sets[0], 4, char*);
981#endif
982
983 sv = SP[4];
984 if (SvOK(sv)) {
985 value = SvNV(sv);
986 if (value < 0.0)
987 value = 0.0;
988 timebuf.tv_sec = (long)value;
65202027 989 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 990 timebuf.tv_usec = (long)(value * 1000000.0);
991 }
992 else
993 tbuf = Null(struct timeval*);
994
995 for (i = 1; i <= 3; i++) {
996 sv = SP[i];
997 if (!SvOK(sv)) {
998 fd_sets[i] = 0;
999 continue;
1000 }
1001 else if (!SvPOK(sv))
2d8e6c8d 1002 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1003 j = SvLEN(sv);
1004 if (j < growsize) {
1005 Sv_Grow(sv, growsize);
a0d0e21e 1006 }
c07a80fd 1007 j = SvCUR(sv);
1008 s = SvPVX(sv) + j;
1009 while (++j <= growsize) {
1010 *s++ = '\0';
1011 }
1012
a0d0e21e
LW		 1013#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1014 s = SvPVX(sv);
1015 New(403, fd_sets[i], growsize, char);
1016 for (offset = 0; offset < growsize; offset += masksize) {
1017 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1018 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1019 }
1020#else
1021 fd_sets[i] = SvPVX(sv);
1022#endif
1023 }
1024
6ad3d225 1025 nfound = PerlSock_select(
a0d0e21e
LW		 1026 maxlen * 8,
1027 (Select_fd_set_t) fd_sets[1],
1028 (Select_fd_set_t) fd_sets[2],
1029 (Select_fd_set_t) fd_sets[3],
1030 tbuf);
1031 for (i = 1; i <= 3; i++) {
1032 if (fd_sets[i]) {
1033 sv = SP[i];
1034#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1035 s = SvPVX(sv);
1036 for (offset = 0; offset < growsize; offset += masksize) {
1037 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1038 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1039 }
1040 Safefree(fd_sets[i]);
1041#endif
1042 SvSETMAGIC(sv);
1043 }
1044 }
1045
1046 PUSHi(nfound);
1047 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1048 value = (NV)(timebuf.tv_sec) +
1049 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1050 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1051 sv_setnv(sv, value);
1052 }
1053 RETURN;
1054#else
cea2e8a9 1055 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1056#endif
1057}
1058
4633a7c4 1059void
864dbfa3 1060Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1061{
1062 if (gv)
1063 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1064 if (PL_defoutgv)
1065 SvREFCNT_dec(PL_defoutgv);
1066 PL_defoutgv = gv;
4633a7c4
LW		 1067}
1068
a0d0e21e
LW		 1069PP(pp_select)
1070{
4e35701f 1071 djSP; dTARGET;
4633a7c4
LW		 1072 GV *newdefout, *egv;
1073 HV *hv;
1074
533c011a 1075 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1076
3280af22 1077 egv = GvEGV(PL_defoutgv);
4633a7c4 1078 if (!egv)
3280af22 1079 egv = PL_defoutgv;
4633a7c4
LW		 1080 hv = GvSTASH(egv);
1081 if (! hv)
3280af22 1082 XPUSHs(&PL_sv_undef);
4633a7c4 1083 else {
cbdc8872 1084 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1085 if (gvp && *gvp == egv) {
f7aaccc2 1086 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1087 XPUSHTARG;
1088 }
1089 else {
1090 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1091 }
4633a7c4
LW		 1092 }
1093
1094 if (newdefout) {
ded8aa31
GS		 1095 if (!GvIO(newdefout))
1096 gv_IOadd(newdefout);
4633a7c4
LW		 1097 setdefout(newdefout);
1098 }
1099
a0d0e21e
LW		 1100 RETURN;
1101}
1102
1103PP(pp_getc)
1104{
4e35701f 1105 djSP; dTARGET;
a0d0e21e 1106 GV *gv;
2ae324a7 1107 MAGIC *mg;
a0d0e21e 1108
32da55ab 1109 if (MAXARG == 0)
3280af22 1110 gv = PL_stdingv;
a0d0e21e
LW		 1111 else
1112 gv = (GV*)POPs;
2ae324a7 1113
155aba94 1114 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1115 I32 gimme = GIMME_V;
2ae324a7 1116 PUSHMARK(SP);
33c27489 1117 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1118 PUTBACK;
1119 ENTER;
864dbfa3 1120 call_method("GETC", gimme);
2ae324a7 1121 LEAVE;
1122 SPAGAIN;
54310121 1123 if (gimme == G_SCALAR)
1124 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1125 RETURN;
1126 }
9bc64814 1127 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1128 RETPUSHUNDEF;
bbce6d69 1129 TAINT;
a0d0e21e 1130 sv_setpv(TARG, " ");
9bc64814 1131 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1132 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1133 /* Find out how many bytes the char needs */
1134 Size_t len = UTF8SKIP(SvPVX(TARG));
1135 if (len > 1) {
1136 SvGROW(TARG,len+1);
1137 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1138 SvCUR_set(TARG,1+len);
1139 }
1140 SvUTF8_on(TARG);
1141 }
a0d0e21e
LW		 1142 PUSHTARG;
1143 RETURN;
1144}
1145
1146PP(pp_read)
1147{
cea2e8a9 1148 return pp_sysread();
a0d0e21e
LW		 1149}
1150
76e3520e 1151STATIC OP *
cea2e8a9 1152S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1153{
c09156bb 1154 register PERL_CONTEXT *cx;
54310121 1155 I32 gimme = GIMME_V;
a0d0e21e
LW		 1156 AV* padlist = CvPADLIST(cv);
1157 SV** svp = AvARRAY(padlist);
1158
1159 ENTER;
1160 SAVETMPS;
1161
1162 push_return(retop);
146174a9 1163 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1164 PUSHFORMAT(cx);
146174a9 1165 SAVEVPTR(PL_curpad);
3280af22 1166 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1167
4633a7c4 1168 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1169 return CvSTART(cv);
1170}
1171
1172PP(pp_enterwrite)
1173{
4e35701f 1174 djSP;
a0d0e21e
LW		 1175 register GV *gv;
1176 register IO *io;
1177 GV *fgv;
1178 CV *cv;
1179
1180 if (MAXARG == 0)
3280af22 1181 gv = PL_defoutgv;
a0d0e21e
LW		 1182 else {
1183 gv = (GV*)POPs;
1184 if (!gv)
3280af22 1185 gv = PL_defoutgv;
a0d0e21e
LW		 1186 }
1187 EXTEND(SP, 1);
1188 io = GvIO(gv);
1189 if (!io) {
1190 RETPUSHNO;
1191 }
1192 if (IoFMT_GV(io))
1193 fgv = IoFMT_GV(io);
1194 else
1195 fgv = gv;
1196
1197 cv = GvFORM(fgv);
a0d0e21e 1198 if (!cv) {
2dd78f96 1199 char *name = NULL;
a0d0e21e 1200 if (fgv) {
748a9306 1201 SV *tmpsv = sv_newmortal();
43693395 1202 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1203 name = SvPV_nolen(tmpsv);
a0d0e21e 1204 }
2dd78f96
JH		 1205 if (name && *name)
1206 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1207 DIE(aTHX_ "Not a format reference");
a0d0e21e 1208 }
44a8e56a 1209 if (CvCLONE(cv))
1210 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1211
44a8e56a 1212 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1213 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1214}
1215
1216PP(pp_leavewrite)
1217{
4e35701f 1218 djSP;
a0d0e21e
LW		 1219 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1220 register IO *io = GvIOp(gv);
760ac839
LW		 1221 PerlIO *ofp = IoOFP(io);
1222 PerlIO *fp;
a0d0e21e
LW		 1223 SV **newsp;
1224 I32 gimme;
c09156bb 1225 register PERL_CONTEXT *cx;
a0d0e21e 1226
760ac839 1227 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22
NIS		 1228 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1229 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1230 PL_formtarget != PL_toptarget)
a0d0e21e 1231 {
4633a7c4
LW		 1232 GV *fgv;
1233 CV *cv;
a0d0e21e
LW		 1234 if (!IoTOP_GV(io)) {
1235 GV *topgv;
46fc3d4c 1236 SV *topname;
a0d0e21e
LW		 1237
1238 if (!IoTOP_NAME(io)) {
1239 if (!IoFMT_NAME(io))
1240 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1241 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1242 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1243 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1244 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1245 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1246 else
1247 IoTOP_NAME(io) = savepv("top");
1248 }
1249 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1250 if (!topgv || !GvFORM(topgv)) {
1251 IoLINES_LEFT(io) = 100000000;
1252 goto forget_top;
1253 }
1254 IoTOP_GV(io) = topgv;
1255 }
748a9306
LW		 1256 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1257 I32 lines = IoLINES_LEFT(io);
3280af22 1258 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1259 if (lines <= 0) /* Yow, header didn't even fit!!! */
1260 goto forget_top;
748a9306
LW		 1261 while (lines-- > 0) {
1262 s = strchr(s, '\n');
1263 if (!s)
1264 break;
1265 s++;
1266 }
1267 if (s) {
d75029d0
NIS		 1268 STRLEN save = SvCUR(PL_formtarget);
1269 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1270 do_print(PL_formtarget, ofp);
1271 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1272 sv_chop(PL_formtarget, s);
1273 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1274 }
1275 }
a0d0e21e 1276 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1277 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1278 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1279 IoPAGE(io)++;
3280af22 1280 PL_formtarget = PL_toptarget;
748a9306 1281 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1282 fgv = IoTOP_GV(io);
1283 if (!fgv)
cea2e8a9 1284 DIE(aTHX_ "bad top format reference");
4633a7c4 1285 cv = GvFORM(fgv);
2dd78f96
JH		 1286 {
1287 char *name = NULL;
1288 if (!cv) {
1289 SV *sv = sv_newmortal();
1290 gv_efullname4(sv, fgv, Nullch, FALSE);
1291 name = SvPV_nolen(sv);
1292 }
1293 if (name && *name)
1294 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1295 /* why no:
1296 else
1297 DIE(aTHX_ "Undefined top format called");
1298 ?*/
4633a7c4 1299 }
44a8e56a 1300 if (CvCLONE(cv))
1301 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1302 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1303 }
1304
1305 forget_top:
3280af22 1306 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1307 POPFORMAT(cx);
1308 LEAVE;
1309
1310 fp = IoOFP(io);
1311 if (!fp) {
599cee73 1312 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1313 if (IoIFP(io)) {
2dd78f96
JH		 1314 /* integrate with report_evil_fh()? */
1315 char *name = NULL;
1316 if (isGV(gv)) {
1317 SV* sv = sv_newmortal();
1318 gv_efullname4(sv, gv, Nullch, FALSE);
1319 name = SvPV_nolen(sv);
1320 }
1321 if (name && *name)
1322 Perl_warner(aTHX_ WARN_IO,
1323 "Filehandle %s opened only for input", name);
1324 else
1325 Perl_warner(aTHX_ WARN_IO,
1326 "Filehandle opened only for input");
cb50131a 1327 }
599cee73 1328 else if (ckWARN(WARN_CLOSED))
bc37a18f 1329 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1330 }
3280af22 1331 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1332 }
1333 else {
3280af22 1334 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1335 if (ckWARN(WARN_IO))
cea2e8a9 1336 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1337 }
d75029d0 1338 if (!do_print(PL_formtarget, fp))
3280af22 1339 PUSHs(&PL_sv_no);
a0d0e21e 1340 else {
3280af22
NIS		 1341 FmLINES(PL_formtarget) = 0;
1342 SvCUR_set(PL_formtarget, 0);
1343 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1344 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1345 (void)PerlIO_flush(fp);
3280af22 1346 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1347 }
1348 }
3280af22 1349 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1350 PUTBACK;
1351 return pop_return();
1352}
1353
1354PP(pp_prtf)
1355{
4e35701f 1356 djSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1357 GV *gv;
1358 IO *io;
760ac839 1359 PerlIO *fp;
26db47c4 1360 SV *sv;
46fc3d4c 1361 MAGIC *mg;
2d8e6c8d 1362 STRLEN n_a;
a0d0e21e 1363
533c011a 1364 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1365 gv = (GV*)*++MARK;
1366 else
3280af22 1367 gv = PL_defoutgv;
46fc3d4c 1368
155aba94 1369 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1370 if (MARK == ORIGMARK) {
4352c267 1371 MEXTEND(SP, 1);
46fc3d4c 1372 ++MARK;
1373 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1374 ++SP;
1375 }
1376 PUSHMARK(MARK - 1);
33c27489 1377 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1378 PUTBACK;
1379 ENTER;
864dbfa3 1380 call_method("PRINTF", G_SCALAR);
46fc3d4c 1381 LEAVE;
1382 SPAGAIN;
1383 MARK = ORIGMARK + 1;
1384 *MARK = *SP;
1385 SP = MARK;
1386 RETURN;
1387 }
1388
26db47c4 1389 sv = NEWSV(0,0);
a0d0e21e 1390 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1391 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1392 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1393 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1394 goto just_say_no;
1395 }
1396 else if (!(fp = IoOFP(io))) {
599cee73 1397 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1398 /* integrate with report_evil_fh()? */
cb50131a 1399 if (IoIFP(io)) {
2dd78f96
JH		 1400 char *name = NULL;
1401 if (isGV(gv)) {
1402 gv_efullname4(sv, gv, Nullch, FALSE);
1403 name = SvPV_nolen(sv);
1404 }
1405 if (name && *name)
1406 Perl_warner(aTHX_ WARN_IO,
1407 "Filehandle %s opened only for input", name);
1408 else
1409 Perl_warner(aTHX_ WARN_IO,
1410 "Filehandle opened only for input");
cb50131a 1411 }
599cee73 1412 else if (ckWARN(WARN_CLOSED))
bc37a18f 1413 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1414 }
748a9306 1415 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1416 goto just_say_no;
1417 }
1418 else {
1419 do_sprintf(sv, SP - MARK, MARK + 1);
1420 if (!do_print(sv, fp))
1421 goto just_say_no;
1422
1423 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1424 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1425 goto just_say_no;
1426 }
1427 SvREFCNT_dec(sv);
1428 SP = ORIGMARK;
3280af22 1429 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1430 RETURN;
1431
1432 just_say_no:
1433 SvREFCNT_dec(sv);
1434 SP = ORIGMARK;
3280af22 1435 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1436 RETURN;
1437}
1438
c07a80fd 1439PP(pp_sysopen)
1440{
4e35701f 1441 djSP;
c07a80fd 1442 GV *gv;
c07a80fd 1443 SV *sv;
1444 char *tmps;
1445 STRLEN len;
1446 int mode, perm;
1447
1448 if (MAXARG > 3)
1449 perm = POPi;
1450 else
1451 perm = 0666;
1452 mode = POPi;
1453 sv = POPs;
1454 gv = (GV *)POPs;
1455
4592e6ca
NIS		 1456 /* Need TIEHANDLE method ? */
1457
c07a80fd 1458 tmps = SvPV(sv, len);
1459 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1460 IoLINES(GvIOp(gv)) = 0;
3280af22 1461 PUSHs(&PL_sv_yes);
c07a80fd 1462 }
1463 else {
3280af22 1464 PUSHs(&PL_sv_undef);
c07a80fd 1465 }
1466 RETURN;
1467}
1468
a0d0e21e
LW		 1469PP(pp_sysread)
1470{
4e35701f 1471 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1472 int offset;
1473 GV *gv;
1474 IO *io;
1475 char *buffer;
5b54f415 1476 SSize_t length;
eb5c063a 1477 SSize_t count;
1e422769 1478 Sock_size_t bufsize;
748a9306 1479 SV *bufsv;
a0d0e21e 1480 STRLEN blen;
2ae324a7 1481 MAGIC *mg;
eb5c063a
NIS		 1482 int fp_utf8;
1483 Size_t got = 0;
1484 Size_t wanted;
a0d0e21e
LW		 1485
1486 gv = (GV*)*++MARK;
533c011a 1487 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1488 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1489 {
2ae324a7 1490 SV *sv;
1491
1492 PUSHMARK(MARK-1);
33c27489 1493 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1494 ENTER;
864dbfa3 1495 call_method("READ", G_SCALAR);
2ae324a7 1496 LEAVE;
1497 SPAGAIN;
1498 sv = POPs;
1499 SP = ORIGMARK;
1500 PUSHs(sv);
1501 RETURN;
1502 }
1503
a0d0e21e
LW		 1504 if (!gv)
1505 goto say_undef;
748a9306 1506 bufsv = *++MARK;
ff68c719 1507 if (! SvOK(bufsv))
1508 sv_setpvn(bufsv, "", 0);
a0d0e21e 1509 length = SvIVx(*++MARK);
748a9306 1510 SETERRNO(0,0);
a0d0e21e
LW		 1511 if (MARK < SP)
1512 offset = SvIVx(*++MARK);
1513 else
1514 offset = 0;
1515 io = GvIO(gv);
1516 if (!io || !IoIFP(io))
1517 goto say_undef;
eb5c063a 1518 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTE) {
7d59b7e4 1519 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1520 /* UTF8 may not have been set if they are all low bytes */
1521 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1522 }
1523 else {
1524 buffer = SvPV_force(bufsv, blen);
1525 }
1526 if (length < 0)
1527 DIE(aTHX_ "Negative length");
eb5c063a 1528 wanted = length;
7d59b7e4 1529
a0d0e21e 1530#ifdef HAS_SOCKET
533c011a 1531 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1532 char namebuf[MAXPATHLEN];
eec2d3df 1533#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1534 bufsize = sizeof (struct sockaddr_in);
1535#else
46fc3d4c 1536 bufsize = sizeof namebuf;
490ab354 1537#endif
abf95952
IZ		 1538#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1539 if (bufsize >= 256)
1540 bufsize = 255;
1541#endif
748a9306 1542 buffer = SvGROW(bufsv, length+1);
bbce6d69 1543 /* 'offset' means 'flags' here */
eb5c063a 1544 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1545 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1546 if (count < 0)
a0d0e21e 1547 RETPUSHUNDEF;
eb5c063a 1548 SvCUR_set(bufsv, count);
748a9306
LW		 1549 *SvEND(bufsv) = '\0';
1550 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1551 if (fp_utf8)
1552 SvUTF8_on(bufsv);
748a9306 1553 SvSETMAGIC(bufsv);
aac0dd9a 1554 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1555 if (!(IoFLAGS(io) & IOf_UNTAINT))
1556 SvTAINTED_on(bufsv);
a0d0e21e 1557 SP = ORIGMARK;
46fc3d4c 1558 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1559 PUSHs(TARG);
1560 RETURN;
1561 }
1562#else
911d147d 1563 if (PL_op->op_type == OP_RECV)
cea2e8a9 1564 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1565#endif
eb5c063a
NIS		 1566 if (DO_UTF8(bufsv)) {
1567 /* offset adjust in characters not bytes */
1568 blen = sv_len_utf8(bufsv);
7d59b7e4 1569 }
bbce6d69 1570 if (offset < 0) {
1571 if (-offset > blen)
cea2e8a9 1572 DIE(aTHX_ "Offset outside string");
bbce6d69 1573 offset += blen;
1574 }
eb5c063a
NIS		 1575 if (DO_UTF8(bufsv)) {
1576 /* convert offset-as-chars to offset-as-bytes */
1577 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1578 }
1579 more_bytes:
cd52b7b2 1580 bufsize = SvCUR(bufsv);
eb5c063a 1581 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1582 if (offset > bufsize) { /* Zero any newly allocated space */
1583 Zero(buffer+bufsize, offset-bufsize, char);
1584 }
eb5c063a
NIS		 1585 buffer = buffer + offset;
1586
533c011a 1587 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1588#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1589 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1590 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1591 buffer, length, 0);
a7092146
GS		 1592 }
1593 else
1594#endif
1595 {
eb5c063a
NIS		 1596 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1597 buffer, length);
a7092146 1598 }
a0d0e21e
LW		 1599 }
1600 else
1601#ifdef HAS_SOCKET__bad_code_maybe
50952442 1602 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1603 char namebuf[MAXPATHLEN];
490ab354
JH		 1604#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1605 bufsize = sizeof (struct sockaddr_in);
1606#else
46fc3d4c 1607 bufsize = sizeof namebuf;
490ab354 1608#endif
eb5c063a 1609 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1610 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1611 }
1612 else
1613#endif
3b02c43c 1614 {
eb5c063a
NIS		 1615 count = PerlIO_read(IoIFP(io), buffer, length);
1616 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1617 if (count == 0 && PerlIO_error(IoIFP(io)))
1618 count = -1;
3b02c43c 1619 }
eb5c063a 1620 if (count < 0) {
50952442 1621 if ((IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout()
c529f79d 1622 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
af8c498a 1623 {
2dd78f96
JH		 1624 /* integrate with report_evil_fh()? */
1625 char *name = NULL;
1626 if (isGV(gv)) {
1627 SV* sv = sv_newmortal();
1628 gv_efullname4(sv, gv, Nullch, FALSE);
1629 name = SvPV_nolen(sv);
1630 }
1631 if (name && *name)
1632 Perl_warner(aTHX_ WARN_IO,
1633 "Filehandle %s opened only for output", name);
1634 else
1635 Perl_warner(aTHX_ WARN_IO,
1636 "Filehandle opened only for output");
af8c498a 1637 }
a0d0e21e 1638 goto say_undef;
af8c498a 1639 }
eb5c063a 1640 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1641 *SvEND(bufsv) = '\0';
1642 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1643 if (fp_utf8 && !IN_BYTE) {
1644 /* Look at utf8 we got back and count the characters */
1645 char *bend = buffer + count;
1646 while (buffer < bend) {
1647 STRLEN skip = UTF8SKIP(buffer);
1648 if (buffer+skip > bend) {
1649 /* partial character - try for rest of it */
1650 length = skip - (bend-buffer);
1651 offset = bend - SvPVX(bufsv);
1652 goto more_bytes;
1653 }
1654 else {
1655 got++;
1656 buffer += skip;
1657 }
1658 }
1659 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1660 provided amount read (count) was what was requested (length)
1661 */
1662 if (got < wanted && count == length) {
1663 length = (wanted-got);
1664 offset = bend - SvPVX(bufsv);
1665 goto more_bytes;
1666 }
1667 /* return value is character count */
1668 count = got;
1669 SvUTF8_on(bufsv);
1670 }
748a9306 1671 SvSETMAGIC(bufsv);
aac0dd9a 1672 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1673 if (!(IoFLAGS(io) & IOf_UNTAINT))
1674 SvTAINTED_on(bufsv);
a0d0e21e 1675 SP = ORIGMARK;
eb5c063a 1676 PUSHi(count);
a0d0e21e
LW		 1677 RETURN;
1678
1679 say_undef:
1680 SP = ORIGMARK;
1681 RETPUSHUNDEF;
1682}
1683
1684PP(pp_syswrite)
1685{
092bebab
JH		 1686 djSP;
1687 int items = (SP - PL_stack_base) - TOPMARK;
1688 if (items == 2) {
9f089d78 1689 SV *sv;
092bebab 1690 EXTEND(SP, 1);
9f089d78
SB		 1691 sv = sv_2mortal(newSViv(sv_len(*SP)));
1692 PUSHs(sv);
092bebab
JH		 1693 PUTBACK;
1694 }
cea2e8a9 1695 return pp_send();
a0d0e21e
LW		 1696}
1697
1698PP(pp_send)
1699{
4e35701f 1700 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1701 GV *gv;
1702 IO *io;
748a9306 1703 SV *bufsv;
a0d0e21e 1704 char *buffer;
8c99d73e
GS		 1705 Size_t length;
1706 SSize_t retval;
a0d0e21e 1707 STRLEN blen;
1d603a67 1708 MAGIC *mg;
a0d0e21e
LW		 1709
1710 gv = (GV*)*++MARK;
33c27489 1711 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1712 SV *sv;
1713
1714 PUSHMARK(MARK-1);
33c27489 1715 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1716 ENTER;
864dbfa3 1717 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1718 LEAVE;
1719 SPAGAIN;
1720 sv = POPs;
1721 SP = ORIGMARK;
1722 PUSHs(sv);
1723 RETURN;
1724 }
a0d0e21e
LW		 1725 if (!gv)
1726 goto say_undef;
748a9306 1727 bufsv = *++MARK;
8c99d73e 1728#if Size_t_size > IVSIZE
3c001241 1729 length = (Size_t)SvNVx(*++MARK);
146174a9 1730#else
3c001241 1731 length = (Size_t)SvIVx(*++MARK);
146174a9 1732#endif
3c001241 1733 if ((SSize_t)length < 0)
cea2e8a9 1734 DIE(aTHX_ "Negative length");
748a9306 1735 SETERRNO(0,0);
a0d0e21e
LW		 1736 io = GvIO(gv);
1737 if (!io || !IoIFP(io)) {
8c99d73e 1738 retval = -1;
bc37a18f
RG		 1739 if (ckWARN(WARN_CLOSED))
1740 report_evil_fh(gv, io, PL_op->op_type);
7d59b7e4
NIS		 1741 goto say_undef;
1742 }
1743
1744 if (PerlIO_isutf8(IoIFP(io))) {
1745 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1746 }
7d59b7e4
NIS		 1747 else {
1748 if (DO_UTF8(bufsv))
1749 sv_utf8_downgrade(bufsv, FALSE);
1750 buffer = SvPV(bufsv, blen);
1751 }
1752
1753 if (PL_op->op_type == OP_SYSWRITE) {
1754 IV offset;
1755 if (DO_UTF8(bufsv)) {
1756 /* length and offset are in chars */
1757 blen = sv_len_utf8(bufsv);
1758 }
bbce6d69 1759 if (MARK < SP) {
a0d0e21e 1760 offset = SvIVx(*++MARK);
bbce6d69 1761 if (offset < 0) {
1762 if (-offset > blen)
cea2e8a9 1763 DIE(aTHX_ "Offset outside string");
bbce6d69 1764 offset += blen;
fb73857a 1765 } else if (offset >= blen && blen > 0)
cea2e8a9 1766 DIE(aTHX_ "Offset outside string");
bbce6d69 1767 } else
a0d0e21e
LW		 1768 offset = 0;
1769 if (length > blen - offset)
1770 length = blen - offset;
7d59b7e4 1771 if (DO_UTF8(bufsv)) {
c8d31a35 1772 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1773 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1774 }
1775 else {
1776 buffer = buffer+offset;
1777 }
a7092146 1778#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1779 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1780 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1781 buffer, length, 0);
a7092146
GS		 1782 }
1783 else
1784#endif
1785 {
94e4c244 1786 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1787 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1788 buffer, length);
a7092146 1789 }
a0d0e21e
LW		 1790 }
1791#ifdef HAS_SOCKET
1792 else if (SP > MARK) {
1793 char *sockbuf;
1794 STRLEN mlen;
1795 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1796 /* length is really flags */
8c99d73e
GS		 1797 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1798 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1799 }
1800 else
7d59b7e4 1801 /* length is really flags */
8c99d73e 1802 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1803#else
1804 else
cea2e8a9 1805 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1806#endif
8c99d73e 1807 if (retval < 0)
a0d0e21e
LW		 1808 goto say_undef;
1809 SP = ORIGMARK;
8c99d73e
GS		 1810#if Size_t_size > IVSIZE
1811 PUSHn(retval);
1812#else
1813 PUSHi(retval);
1814#endif
a0d0e21e
LW		 1815 RETURN;
1816
1817 say_undef:
1818 SP = ORIGMARK;
1819 RETPUSHUNDEF;
1820}
1821
1822PP(pp_recv)
1823{
cea2e8a9 1824 return pp_sysread();
a0d0e21e
LW		 1825}
1826
1827PP(pp_eof)
1828{
4e35701f 1829 djSP;
a0d0e21e 1830 GV *gv;
4592e6ca 1831 MAGIC *mg;
a0d0e21e 1832
32da55ab 1833 if (MAXARG == 0) {
146174a9
CB		 1834 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1835 IO *io;
1836 gv = PL_last_in_gv = PL_argvgv;
1837 io = GvIO(gv);
1838 if (io && !IoIFP(io)) {
1839 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1840 IoLINES(io) = 0;
1841 IoFLAGS(io) &= ~IOf_START;
1842 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1843 sv_setpvn(GvSV(gv), "-", 1);
1844 SvSETMAGIC(GvSV(gv));
1845 }
1846 else if (!nextargv(gv))
1847 RETPUSHYES;
1848 }
1849 }
1850 else
1851 gv = PL_last_in_gv; /* eof */
1852 }
a0d0e21e 1853 else
146174a9 1854 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1855
1856 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1857 PUSHMARK(SP);
1858 XPUSHs(SvTIED_obj((SV*)gv, mg));
1859 PUTBACK;
1860 ENTER;
864dbfa3 1861 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1862 LEAVE;
1863 SPAGAIN;
1864 RETURN;
1865 }
1866
54310121 1867 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1868 RETURN;
1869}
1870
1871PP(pp_tell)
1872{
4e35701f 1873 djSP; dTARGET;
301e8125 1874 GV *gv;
4592e6ca 1875 MAGIC *mg;
a0d0e21e 1876
32da55ab 1877 if (MAXARG == 0)
3280af22 1878 gv = PL_last_in_gv;
a0d0e21e 1879 else
3280af22 1880 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1881
1882 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1883 PUSHMARK(SP);
1884 XPUSHs(SvTIED_obj((SV*)gv, mg));
1885 PUTBACK;
1886 ENTER;
864dbfa3 1887 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1888 LEAVE;
1889 SPAGAIN;
1890 RETURN;
1891 }
1892
146174a9
CB		 1893#if LSEEKSIZE > IVSIZE
1894 PUSHn( do_tell(gv) );
1895#else
a0d0e21e 1896 PUSHi( do_tell(gv) );
146174a9 1897#endif
a0d0e21e
LW		 1898 RETURN;
1899}
1900
1901PP(pp_seek)
1902{
cea2e8a9 1903 return pp_sysseek();
137443ea 1904}
1905
1906PP(pp_sysseek)
1907{
4e35701f 1908 djSP;
a0d0e21e
LW		 1909 GV *gv;
1910 int whence = POPi;
146174a9
CB		 1911#if LSEEKSIZE > IVSIZE
1912 Off_t offset = (Off_t)SvNVx(POPs);
1913#else
d9b3e12d 1914 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1915#endif
4592e6ca 1916 MAGIC *mg;
a0d0e21e 1917
3280af22 1918 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1919
1920 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1921 PUSHMARK(SP);
1922 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1923#if LSEEKSIZE > IVSIZE
1924 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1925#else
b448e4fe 1926 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1927#endif
b448e4fe 1928 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1929 PUTBACK;
1930 ENTER;
864dbfa3 1931 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1932 LEAVE;
1933 SPAGAIN;
1934 RETURN;
1935 }
1936
533c011a 1937 if (PL_op->op_type == OP_SEEK)
8903cb82 1938 PUSHs(boolSV(do_seek(gv, offset, whence)));
1939 else {
b448e4fe
JH		 1940 Off_t sought = do_sysseek(gv, offset, whence);
1941 if (sought < 0)
146174a9
CB		 1942 PUSHs(&PL_sv_undef);
1943 else {
b448e4fe 1944 SV* sv = sought ?
146174a9 1945#if LSEEKSIZE > IVSIZE
b448e4fe 1946 newSVnv((NV)sought)
146174a9 1947#else
b448e4fe 1948 newSViv(sought)
146174a9
CB		 1949#endif
1950 : newSVpvn(zero_but_true, ZBTLEN);
1951 PUSHs(sv_2mortal(sv));
1952 }
8903cb82 1953 }
a0d0e21e
LW		 1954 RETURN;
1955}
1956
1957PP(pp_truncate)
1958{
4e35701f 1959 djSP;
8c99d73e
GS		 1960 /* There seems to be no consensus on the length type of truncate()
1961 * and ftruncate(), both off_t and size_t have supporters. In
1962 * general one would think that when using large files, off_t is
1963 * at least as wide as size_t, so using an off_t should be okay. */
1964 /* XXX Configure probe for the length type of *truncate() needed XXX */
1965 Off_t len;
a0d0e21e
LW		 1966 int result = 1;
1967 GV *tmpgv;
2d8e6c8d 1968 STRLEN n_a;
a0d0e21e 1969
8c99d73e
GS		 1970#if Size_t_size > IVSIZE
1971 len = (Off_t)POPn;
1972#else
1973 len = (Off_t)POPi;
1974#endif
1975 /* Checking for length < 0 is problematic as the type might or
301e8125 1976 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 1977 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1978 SETERRNO(0,0);
5d94fbed 1979#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1980 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 1981 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 1982 do_ftruncate:
1e422769 1983 TAINT_PROPER("truncate");
cb50131a
CB		 1984 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1985 result = 0;
1986 else {
1987 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 1988#ifdef HAS_TRUNCATE
cb50131a 1989 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 1990#else
cb50131a 1991 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1992#endif
cb50131a
CB		 1993 result = 0;
1994 }
a0d0e21e
LW		 1995 }
1996 else {
cbdc8872 1997 SV *sv = POPs;
1e422769 1998 char *name;
2d8e6c8d 1999 STRLEN n_a;
1e422769 2000
cbdc8872 2001 if (SvTYPE(sv) == SVt_PVGV) {
2002 tmpgv = (GV*)sv; /* *main::FRED for example */
2003 goto do_ftruncate;
2004 }
2005 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2006 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2007 goto do_ftruncate;
2008 }
1e422769 2009
2d8e6c8d 2010 name = SvPV(sv, n_a);
1e422769 2011 TAINT_PROPER("truncate");
cbdc8872 2012#ifdef HAS_TRUNCATE
1e422769 2013 if (truncate(name, len) < 0)
a0d0e21e 2014 result = 0;
cbdc8872 2015#else
2016 {
2017 int tmpfd;
6ad3d225 2018 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 2019 result = 0;
cbdc8872 2020 else {
2021 if (my_chsize(tmpfd, len) < 0)
2022 result = 0;
6ad3d225 2023 PerlLIO_close(tmpfd);
cbdc8872 2024 }
a0d0e21e 2025 }
a0d0e21e 2026#endif
cbdc8872 2027 }
a0d0e21e
LW		 2028
2029 if (result)
2030 RETPUSHYES;
2031 if (!errno)
748a9306 2032 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2033 RETPUSHUNDEF;
2034#else
cea2e8a9 2035 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2036#endif
2037}
2038
2039PP(pp_fcntl)
2040{
cea2e8a9 2041 return pp_ioctl();
a0d0e21e
LW		 2042}
2043
2044PP(pp_ioctl)
2045{
4e35701f 2046 djSP; dTARGET;
748a9306 2047 SV *argsv = POPs;
a0d0e21e 2048 unsigned int func = U_I(POPn);
533c011a 2049 int optype = PL_op->op_type;
a0d0e21e 2050 char *s;
324aa91a 2051 IV retval;
a0d0e21e
LW		 2052 GV *gv = (GV*)POPs;
2053 IO *io = GvIOn(gv);
2054
748a9306
LW		 2055 if (!io || !argsv || !IoIFP(io)) {
2056 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 2057 RETPUSHUNDEF;
2058 }
2059
748a9306 2060 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2061 STRLEN len;
324aa91a 2062 STRLEN need;
748a9306 2063 s = SvPV_force(argsv, len);
324aa91a
HF		 2064 need = IOCPARM_LEN(func);
2065 if (len < need) {
2066 s = Sv_Grow(argsv, need + 1);
2067 SvCUR_set(argsv, need);
a0d0e21e
LW		 2068 }
2069
748a9306 2070 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2071 }
2072 else {
748a9306 2073 retval = SvIV(argsv);
c529f79d 2074 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2075 }
2076
2077 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2078
2079 if (optype == OP_IOCTL)
2080#ifdef HAS_IOCTL
76e3520e 2081 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2082#else
cea2e8a9 2083 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2084#endif
2085 else
55497cff 2086#ifdef HAS_FCNTL
2087#if defined(OS2) && defined(__EMX__)
760ac839 2088 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2089#else
760ac839 2090 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2091#endif
55497cff 2092#else
cea2e8a9 2093 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 2094#endif
2095
748a9306
LW		 2096 if (SvPOK(argsv)) {
2097 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2098 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2099 PL_op_name[optype]);
748a9306
LW		 2100 s[SvCUR(argsv)] = 0; /* put our null back */
2101 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2102 }
2103
2104 if (retval == -1)
2105 RETPUSHUNDEF;
2106 if (retval != 0) {
2107 PUSHi(retval);
2108 }
2109 else {
8903cb82 2110 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2111 }
2112 RETURN;
2113}
2114
2115PP(pp_flock)
2116{
4e35701f 2117 djSP; dTARGET;
a0d0e21e
LW		 2118 I32 value;
2119 int argtype;
2120 GV *gv;
bc37a18f 2121 IO *io = NULL;
760ac839 2122 PerlIO *fp;
16d20bd9 2123
ff68c719 2124#ifdef FLOCK
a0d0e21e 2125 argtype = POPi;
32da55ab 2126 if (MAXARG == 0)
3280af22 2127 gv = PL_last_in_gv;
a0d0e21e
LW		 2128 else
2129 gv = (GV*)POPs;
bc37a18f
RG		 2130 if (gv && (io = GvIO(gv)))
2131 fp = IoIFP(io);
2132 else {
a0d0e21e 2133 fp = Nullfp;
bc37a18f
RG		 2134 io = NULL;
2135 }
a0d0e21e 2136 if (fp) {
68dc0745 2137 (void)PerlIO_flush(fp);
76e3520e 2138 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2139 }
cb50131a 2140 else {
bc37a18f
RG		 2141 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2142 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2143 value = 0;
cb50131a 2144 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2145 }
a0d0e21e
LW		 2146 PUSHi(value);
2147 RETURN;
2148#else
cea2e8a9 2149 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2150#endif
2151}
2152
2153/* Sockets. */
2154
2155PP(pp_socket)
2156{
4e35701f 2157 djSP;
a0d0e21e
LW		 2158#ifdef HAS_SOCKET
2159 GV *gv;
2160 register IO *io;
2161 int protocol = POPi;
2162 int type = POPi;
2163 int domain = POPi;
2164 int fd;
2165
2166 gv = (GV*)POPs;
2167
2168 if (!gv) {
748a9306 2169 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2170 RETPUSHUNDEF;
2171 }
2172
2173 io = GvIOn(gv);
2174 if (IoIFP(io))
2175 do_close(gv, FALSE);
2176
2177 TAINT_PROPER("socket");
6ad3d225 2178 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2179 if (fd < 0)
2180 RETPUSHUNDEF;
760ac839
LW		 2181 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2182 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2183 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2184 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2185 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2186 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2187 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2188 RETPUSHUNDEF;
2189 }
8d2a6795
GS		 2190#if defined(HAS_FCNTL) && defined(F_SETFD)
2191 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2192#endif
a0d0e21e
LW		 2193
2194 RETPUSHYES;
2195#else
cea2e8a9 2196 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2197#endif
2198}
2199
2200PP(pp_sockpair)
2201{
4e35701f 2202 djSP;
a0d0e21e
LW		 2203#ifdef HAS_SOCKETPAIR
2204 GV *gv1;
2205 GV *gv2;
2206 register IO *io1;
2207 register IO *io2;
2208 int protocol = POPi;
2209 int type = POPi;
2210 int domain = POPi;
2211 int fd[2];
2212
2213 gv2 = (GV*)POPs;
2214 gv1 = (GV*)POPs;
2215 if (!gv1 || !gv2)
2216 RETPUSHUNDEF;
2217
2218 io1 = GvIOn(gv1);
2219 io2 = GvIOn(gv2);
2220 if (IoIFP(io1))
2221 do_close(gv1, FALSE);
2222 if (IoIFP(io2))
2223 do_close(gv2, FALSE);
2224
2225 TAINT_PROPER("socketpair");
6ad3d225 2226 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2227 RETPUSHUNDEF;
760ac839
LW		 2228 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2229 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2230 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2231 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2232 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2233 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2234 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2235 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2236 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2237 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2238 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2239 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2240 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2241 RETPUSHUNDEF;
2242 }
8d2a6795
GS		 2243#if defined(HAS_FCNTL) && defined(F_SETFD)
2244 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2245 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2246#endif
a0d0e21e
LW		 2247
2248 RETPUSHYES;
2249#else
cea2e8a9 2250 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2251#endif
2252}
2253
2254PP(pp_bind)
2255{
4e35701f 2256 djSP;
a0d0e21e 2257#ifdef HAS_SOCKET
eec2d3df
GS		 2258#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2259 extern GETPRIVMODE();
2260 extern GETUSERMODE();
2261#endif
748a9306 2262 SV *addrsv = POPs;
a0d0e21e
LW		 2263 char *addr;
2264 GV *gv = (GV*)POPs;
2265 register IO *io = GvIOn(gv);
2266 STRLEN len;
eec2d3df
GS		 2267 int bind_ok = 0;
2268#ifdef MPE
2269 int mpeprivmode = 0;
2270#endif
a0d0e21e
LW		 2271
2272 if (!io || !IoIFP(io))
2273 goto nuts;
2274
748a9306 2275 addr = SvPV(addrsv, len);
a0d0e21e 2276 TAINT_PROPER("bind");
eec2d3df
GS		 2277#ifdef MPE /* Deal with MPE bind() peculiarities */
2278 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2279 /* The address *MUST* stupidly be zero. */
2280 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2281 /* PRIV mode is required to bind() to ports < 1024. */
2282 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2283 ((struct sockaddr_in *)addr)->sin_port > 0) {
2284 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2285 mpeprivmode = 1;
2286 }
2287 }
2288#endif /* MPE */
2289 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2290 (struct sockaddr *)addr, len) >= 0)
2291 bind_ok = 1;
2292
2293#ifdef MPE /* Switch back to USER mode */
2294 if (mpeprivmode)
2295 GETUSERMODE();
2296#endif /* MPE */
2297
2298 if (bind_ok)
a0d0e21e
LW		 2299 RETPUSHYES;
2300 else
2301 RETPUSHUNDEF;
2302
2303nuts:
599cee73 2304 if (ckWARN(WARN_CLOSED))
bc37a18f 2305 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2306 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2307 RETPUSHUNDEF;
2308#else
cea2e8a9 2309 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2310#endif
2311}
2312
2313PP(pp_connect)
2314{
4e35701f 2315 djSP;
a0d0e21e 2316#ifdef HAS_SOCKET
748a9306 2317 SV *addrsv = POPs;
a0d0e21e
LW		 2318 char *addr;
2319 GV *gv = (GV*)POPs;
2320 register IO *io = GvIOn(gv);
2321 STRLEN len;
2322
2323 if (!io || !IoIFP(io))
2324 goto nuts;
2325
748a9306 2326 addr = SvPV(addrsv, len);
a0d0e21e 2327 TAINT_PROPER("connect");
6ad3d225 2328 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2329 RETPUSHYES;
2330 else
2331 RETPUSHUNDEF;
2332
2333nuts:
599cee73 2334 if (ckWARN(WARN_CLOSED))
bc37a18f 2335 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2336 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2337 RETPUSHUNDEF;
2338#else
cea2e8a9 2339 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2340#endif
2341}
2342
2343PP(pp_listen)
2344{
4e35701f 2345 djSP;
a0d0e21e
LW		 2346#ifdef HAS_SOCKET
2347 int backlog = POPi;
2348 GV *gv = (GV*)POPs;
2349 register IO *io = GvIOn(gv);
2350
2351 if (!io || !IoIFP(io))
2352 goto nuts;
2353
6ad3d225 2354 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2355 RETPUSHYES;
2356 else
2357 RETPUSHUNDEF;
2358
2359nuts:
599cee73 2360 if (ckWARN(WARN_CLOSED))
bc37a18f 2361 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2362 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2363 RETPUSHUNDEF;
2364#else
cea2e8a9 2365 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2366#endif
2367}
2368
2369PP(pp_accept)
2370{
4e35701f 2371 djSP; dTARGET;
a0d0e21e
LW		 2372#ifdef HAS_SOCKET
2373 GV *ngv;
2374 GV *ggv;
2375 register IO *nstio;
2376 register IO *gstio;
4633a7c4 2377 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2378 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2379 int fd;
2380
2381 ggv = (GV*)POPs;
2382 ngv = (GV*)POPs;
2383
2384 if (!ngv)
2385 goto badexit;
2386 if (!ggv)
2387 goto nuts;
2388
2389 gstio = GvIO(ggv);
2390 if (!gstio || !IoIFP(gstio))
2391 goto nuts;
2392
2393 nstio = GvIOn(ngv);
2394 if (IoIFP(nstio))
2395 do_close(ngv, FALSE);
2396
6ad3d225 2397 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2398 if (fd < 0)
2399 goto badexit;
760ac839
LW		 2400 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2401 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
50952442 2402 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2403 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2404 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2405 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2406 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2407 goto badexit;
2408 }
8d2a6795
GS		 2409#if defined(HAS_FCNTL) && defined(F_SETFD)
2410 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2411#endif
a0d0e21e 2412
ed79a026
OF		 2413#ifdef EPOC
2414 len = sizeof saddr; /* EPOC somehow truncates info */
2415#endif
2416
748a9306 2417 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2418 RETURN;
2419
2420nuts:
599cee73 2421 if (ckWARN(WARN_CLOSED))
bc37a18f 2422 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2423 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2424
2425badexit:
2426 RETPUSHUNDEF;
2427
2428#else
cea2e8a9 2429 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2430#endif
2431}
2432
2433PP(pp_shutdown)
2434{
4e35701f 2435 djSP; dTARGET;
a0d0e21e
LW		 2436#ifdef HAS_SOCKET
2437 int how = POPi;
2438 GV *gv = (GV*)POPs;
2439 register IO *io = GvIOn(gv);
2440
2441 if (!io || !IoIFP(io))
2442 goto nuts;
2443
6ad3d225 2444 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2445 RETURN;
2446
2447nuts:
599cee73 2448 if (ckWARN(WARN_CLOSED))
bc37a18f 2449 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2450 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2451 RETPUSHUNDEF;
2452#else
cea2e8a9 2453 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2454#endif
2455}
2456
2457PP(pp_gsockopt)
2458{
2459#ifdef HAS_SOCKET
cea2e8a9 2460 return pp_ssockopt();
a0d0e21e 2461#else
cea2e8a9 2462 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2463#endif
2464}
2465
2466PP(pp_ssockopt)
2467{
4e35701f 2468 djSP;
a0d0e21e 2469#ifdef HAS_SOCKET
533c011a 2470 int optype = PL_op->op_type;
a0d0e21e
LW		 2471 SV *sv;
2472 int fd;
2473 unsigned int optname;
2474 unsigned int lvl;
2475 GV *gv;
2476 register IO *io;
1e422769 2477 Sock_size_t len;
a0d0e21e
LW		 2478
2479 if (optype == OP_GSOCKOPT)
2480 sv = sv_2mortal(NEWSV(22, 257));
2481 else
2482 sv = POPs;
2483 optname = (unsigned int) POPi;
2484 lvl = (unsigned int) POPi;
2485
2486 gv = (GV*)POPs;
2487 io = GvIOn(gv);
2488 if (!io || !IoIFP(io))
2489 goto nuts;
2490
760ac839 2491 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2492 switch (optype) {
2493 case OP_GSOCKOPT:
748a9306 2494 SvGROW(sv, 257);
a0d0e21e 2495 (void)SvPOK_only(sv);
748a9306
LW		 2496 SvCUR_set(sv,256);
2497 *SvEND(sv) ='\0';
1e422769 2498 len = SvCUR(sv);
6ad3d225 2499 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2500 goto nuts2;
1e422769 2501 SvCUR_set(sv, len);
748a9306 2502 *SvEND(sv) ='\0';
a0d0e21e
LW		 2503 PUSHs(sv);
2504 break;
2505 case OP_SSOCKOPT: {
1e422769 2506 char *buf;
2507 int aint;
2508 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2509 STRLEN l;
2510 buf = SvPV(sv, l);
2511 len = l;
1e422769 2512 }
56ee1660 2513 else {
a0d0e21e
LW		 2514 aint = (int)SvIV(sv);
2515 buf = (char*)&aint;
2516 len = sizeof(int);
2517 }
6ad3d225 2518 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2519 goto nuts2;
3280af22 2520 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2521 }
2522 break;
2523 }
2524 RETURN;
2525
2526nuts:
599cee73 2527 if (ckWARN(WARN_CLOSED))
bc37a18f 2528 report_evil_fh(gv, io, optype);
748a9306 2529 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2530nuts2:
2531 RETPUSHUNDEF;
2532
2533#else
cea2e8a9 2534 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2535#endif
2536}
2537
2538PP(pp_getsockname)
2539{
2540#ifdef HAS_SOCKET
cea2e8a9 2541 return pp_getpeername();
a0d0e21e 2542#else
cea2e8a9 2543 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2544#endif
2545}
2546
2547PP(pp_getpeername)
2548{
4e35701f 2549 djSP;
a0d0e21e 2550#ifdef HAS_SOCKET
533c011a 2551 int optype = PL_op->op_type;
a0d0e21e
LW		 2552 SV *sv;
2553 int fd;
2554 GV *gv = (GV*)POPs;
2555 register IO *io = GvIOn(gv);
1e422769 2556 Sock_size_t len;
a0d0e21e
LW		 2557
2558 if (!io || !IoIFP(io))
2559 goto nuts;
2560
2561 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2562 (void)SvPOK_only(sv);
1e422769 2563 len = 256;
2564 SvCUR_set(sv, len);
748a9306 2565 *SvEND(sv) ='\0';
760ac839 2566 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2567 switch (optype) {
2568 case OP_GETSOCKNAME:
6ad3d225 2569 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2570 goto nuts2;
2571 break;
2572 case OP_GETPEERNAME:
6ad3d225 2573 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2574 goto nuts2;
490ab354
JH		 2575#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2576 {
2577 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";
2578 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2579 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2580 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2581 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2582 goto nuts2;
490ab354
JH		 2583 }
2584 }
2585#endif
a0d0e21e
LW		 2586 break;
2587 }
13826f2c
CS		 2588#ifdef BOGUS_GETNAME_RETURN
2589 /* Interactive Unix, getpeername() and getsockname()
2590 does not return valid namelen */
1e422769 2591 if (len == BOGUS_GETNAME_RETURN)
2592 len = sizeof(struct sockaddr);
13826f2c 2593#endif
1e422769 2594 SvCUR_set(sv, len);
748a9306 2595 *SvEND(sv) ='\0';
a0d0e21e
LW		 2596 PUSHs(sv);
2597 RETURN;
2598
2599nuts:
599cee73 2600 if (ckWARN(WARN_CLOSED))
bc37a18f 2601 report_evil_fh(gv, io, optype);
748a9306 2602 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2603nuts2:
2604 RETPUSHUNDEF;
2605
2606#else
cea2e8a9 2607 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2608#endif
2609}
2610
2611/* Stat calls. */
2612
2613PP(pp_lstat)
2614{
cea2e8a9 2615 return pp_stat();
a0d0e21e
LW		 2616}
2617
2618PP(pp_stat)
2619{
4e35701f 2620 djSP;
2dd78f96 2621 GV *gv;
54310121 2622 I32 gimme;
a0d0e21e 2623 I32 max = 13;
2d8e6c8d 2624 STRLEN n_a;
a0d0e21e 2625
533c011a 2626 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2627 gv = cGVOP_gv;
8a4e5b40
DD		 2628 if (PL_op->op_type == OP_LSTAT) {
2629 if (PL_laststype != OP_LSTAT)
2630 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2631 if (ckWARN(WARN_IO) && gv != PL_defgv)
2632 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2633 "lstat() on filehandle %s", GvENAME(gv));
8a4e5b40
DD		 2634 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2635 }
2636
748a9306 2637 do_fstat:
2dd78f96 2638 if (gv != PL_defgv) {
3280af22 2639 PL_laststype = OP_STAT;
2dd78f96 2640 PL_statgv = gv;
3280af22 2641 sv_setpv(PL_statname, "");
2dd78f96
JH		 2642 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2643 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2644 }
9ddeeac9 2645 if (PL_laststatval < 0) {
2dd78f96
JH		 2646 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2647 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2648 max = 0;
9ddeeac9 2649 }
a0d0e21e
LW		 2650 }
2651 else {
748a9306
LW		 2652 SV* sv = POPs;
2653 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2654 gv = (GV*)sv;
748a9306
LW		 2655 goto do_fstat;
2656 }
2657 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2658 gv = (GV*)SvRV(sv);
748a9306
LW		 2659 goto do_fstat;
2660 }
2d8e6c8d 2661 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2662 PL_statgv = Nullgv;
a0d0e21e 2663#ifdef HAS_LSTAT
533c011a
NIS		 2664 PL_laststype = PL_op->op_type;
2665 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2666 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2667 else
2668#endif
2d8e6c8d 2669 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2670 if (PL_laststatval < 0) {
2d8e6c8d 2671 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2672 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2673 max = 0;
2674 }
2675 }
2676
54310121 2677 gimme = GIMME_V;
2678 if (gimme != G_ARRAY) {
2679 if (gimme != G_VOID)
2680 XPUSHs(boolSV(max));
2681 RETURN;
a0d0e21e
LW		 2682 }
2683 if (max) {
36477c24 2684 EXTEND(SP, max);
2685 EXTEND_MORTAL(max);
1ff81528
PL		 2686 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2687 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2688 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2689 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2690#if Uid_t_size > IVSIZE
2691 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2692#else
23dcd6c8 2693# if Uid_t_sign <= 0
1ff81528 2694 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2695# else
2696 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2697# endif
146174a9 2698#endif
301e8125 2699#if Gid_t_size > IVSIZE
146174a9
CB		 2700 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2701#else
23dcd6c8 2702# if Gid_t_sign <= 0
1ff81528 2703 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2704# else
2705 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2706# endif
146174a9 2707#endif
cbdc8872 2708#ifdef USE_STAT_RDEV
1ff81528 2709 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2710#else
79cb57f6 2711 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2712#endif
146174a9
CB		 2713#if Off_t_size > IVSIZE
2714 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2715#else
1ff81528 2716 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2717#endif
cbdc8872 2718#ifdef BIG_TIME
172ae379
JH		 2719 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2720 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2721 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2722#else
1ff81528
PL		 2723 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2724 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2725 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2726#endif
a0d0e21e 2727#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2728 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2729 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2730#else
79cb57f6
GS		 2731 PUSHs(sv_2mortal(newSVpvn("", 0)));
2732 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2733#endif
2734 }
2735 RETURN;
2736}
2737
2738PP(pp_ftrread)
2739{
5ff3f7a4 2740 I32 result;
4e35701f 2741 djSP;
5ff3f7a4 2742#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2743 STRLEN n_a;
5ff3f7a4 2744 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2745 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2746 if (result == 0)
2747 RETPUSHYES;
2748 if (result < 0)
2749 RETPUSHUNDEF;
2750 RETPUSHNO;
22865c03
GS		 2751 }
2752 else
cea2e8a9 2753 result = my_stat();
5ff3f7a4 2754#else
cea2e8a9 2755 result = my_stat();
5ff3f7a4 2756#endif
22865c03 2757 SPAGAIN;
a0d0e21e
LW		 2758 if (result < 0)
2759 RETPUSHUNDEF;
3280af22 2760 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2761 RETPUSHYES;
2762 RETPUSHNO;
2763}
2764
2765PP(pp_ftrwrite)
2766{
5ff3f7a4 2767 I32 result;
4e35701f 2768 djSP;
5ff3f7a4 2769#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2770 STRLEN n_a;
5ff3f7a4 2771 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2772 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2773 if (result == 0)
2774 RETPUSHYES;
2775 if (result < 0)
2776 RETPUSHUNDEF;
2777 RETPUSHNO;
22865c03
GS		 2778 }
2779 else
cea2e8a9 2780 result = my_stat();
5ff3f7a4 2781#else
cea2e8a9 2782 result = my_stat();
5ff3f7a4 2783#endif
22865c03 2784 SPAGAIN;
a0d0e21e
LW		 2785 if (result < 0)
2786 RETPUSHUNDEF;
3280af22 2787 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2788 RETPUSHYES;
2789 RETPUSHNO;
2790}
2791
2792PP(pp_ftrexec)
2793{
5ff3f7a4 2794 I32 result;
4e35701f 2795 djSP;
5ff3f7a4 2796#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2797 STRLEN n_a;
5ff3f7a4 2798 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2799 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2800 if (result == 0)
2801 RETPUSHYES;
2802 if (result < 0)
2803 RETPUSHUNDEF;
2804 RETPUSHNO;
22865c03
GS		 2805 }
2806 else
cea2e8a9 2807 result = my_stat();
5ff3f7a4 2808#else
cea2e8a9 2809 result = my_stat();
5ff3f7a4 2810#endif
22865c03 2811 SPAGAIN;
a0d0e21e
LW		 2812 if (result < 0)
2813 RETPUSHUNDEF;
3280af22 2814 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2815 RETPUSHYES;
2816 RETPUSHNO;
2817}
2818
2819PP(pp_fteread)
2820{
5ff3f7a4 2821 I32 result;
4e35701f 2822 djSP;
5ff3f7a4 2823#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2824 STRLEN n_a;
5ff3f7a4 2825 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2826 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2827 if (result == 0)
2828 RETPUSHYES;
2829 if (result < 0)
2830 RETPUSHUNDEF;
2831 RETPUSHNO;
22865c03
GS		 2832 }
2833 else
cea2e8a9 2834 result = my_stat();
5ff3f7a4 2835#else
cea2e8a9 2836 result = my_stat();
5ff3f7a4 2837#endif
22865c03 2838 SPAGAIN;
a0d0e21e
LW		 2839 if (result < 0)
2840 RETPUSHUNDEF;
3280af22 2841 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2842 RETPUSHYES;
2843 RETPUSHNO;
2844}
2845
2846PP(pp_ftewrite)
2847{
5ff3f7a4 2848 I32 result;
4e35701f 2849 djSP;
5ff3f7a4 2850#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2851 STRLEN n_a;
5ff3f7a4 2852 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2853 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2854 if (result == 0)
2855 RETPUSHYES;
2856 if (result < 0)
2857 RETPUSHUNDEF;
2858 RETPUSHNO;
22865c03
GS		 2859 }
2860 else
cea2e8a9 2861 result = my_stat();
5ff3f7a4 2862#else
cea2e8a9 2863 result = my_stat();
5ff3f7a4 2864#endif
22865c03 2865 SPAGAIN;
a0d0e21e
LW		 2866 if (result < 0)
2867 RETPUSHUNDEF;
3280af22 2868 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2869 RETPUSHYES;
2870 RETPUSHNO;
2871}
2872
2873PP(pp_fteexec)
2874{
5ff3f7a4 2875 I32 result;
4e35701f 2876 djSP;
5ff3f7a4 2877#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2878 STRLEN n_a;
5ff3f7a4 2879 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2880 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2881 if (result == 0)
2882 RETPUSHYES;
2883 if (result < 0)
2884 RETPUSHUNDEF;
2885 RETPUSHNO;
22865c03
GS		 2886 }
2887 else
cea2e8a9 2888 result = my_stat();
5ff3f7a4 2889#else
cea2e8a9 2890 result = my_stat();
5ff3f7a4 2891#endif
22865c03 2892 SPAGAIN;
a0d0e21e
LW		 2893 if (result < 0)
2894 RETPUSHUNDEF;
3280af22 2895 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2896 RETPUSHYES;
2897 RETPUSHNO;
2898}
2899
2900PP(pp_ftis)
2901{
cea2e8a9 2902 I32 result = my_stat();
4e35701f 2903 djSP;
a0d0e21e
LW		 2904 if (result < 0)
2905 RETPUSHUNDEF;
2906 RETPUSHYES;
2907}
2908
2909PP(pp_fteowned)
2910{
cea2e8a9 2911 return pp_ftrowned();
a0d0e21e
LW		 2912}
2913
2914PP(pp_ftrowned)
2915{
cea2e8a9 2916 I32 result = my_stat();
4e35701f 2917 djSP;
a0d0e21e
LW		 2918 if (result < 0)
2919 RETPUSHUNDEF;
146174a9
CB		 2920 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2921 PL_euid : PL_uid) )
a0d0e21e
LW		 2922 RETPUSHYES;
2923 RETPUSHNO;
2924}
2925
2926PP(pp_ftzero)
2927{
cea2e8a9 2928 I32 result = my_stat();
4e35701f 2929 djSP;
a0d0e21e
LW		 2930 if (result < 0)
2931 RETPUSHUNDEF;
146174a9 2932 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2933 RETPUSHYES;
2934 RETPUSHNO;
2935}
2936
2937PP(pp_ftsize)
2938{
cea2e8a9 2939 I32 result = my_stat();
4e35701f 2940 djSP; dTARGET;
a0d0e21e
LW		 2941 if (result < 0)
2942 RETPUSHUNDEF;
146174a9
CB		 2943#if Off_t_size > IVSIZE
2944 PUSHn(PL_statcache.st_size);
2945#else
3280af22 2946 PUSHi(PL_statcache.st_size);
146174a9 2947#endif
a0d0e21e
LW		 2948 RETURN;
2949}
2950
2951PP(pp_ftmtime)
2952{
cea2e8a9 2953 I32 result = my_stat();
4e35701f 2954 djSP; dTARGET;
a0d0e21e
LW		 2955 if (result < 0)
2956 RETPUSHUNDEF;
c6419e06 2957 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2958 RETURN;
2959}
2960
2961PP(pp_ftatime)
2962{
cea2e8a9 2963 I32 result = my_stat();
4e35701f 2964 djSP; dTARGET;
a0d0e21e
LW		 2965 if (result < 0)
2966 RETPUSHUNDEF;
c6419e06 2967 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 2968 RETURN;
2969}
2970
2971PP(pp_ftctime)
2972{
cea2e8a9 2973 I32 result = my_stat();
4e35701f 2974 djSP; dTARGET;
a0d0e21e
LW		 2975 if (result < 0)
2976 RETPUSHUNDEF;
c6419e06 2977 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 2978 RETURN;
2979}
2980
2981PP(pp_ftsock)
2982{
cea2e8a9 2983 I32 result = my_stat();
4e35701f 2984 djSP;
a0d0e21e
LW		 2985 if (result < 0)
2986 RETPUSHUNDEF;
3280af22 2987 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 2988 RETPUSHYES;
2989 RETPUSHNO;
2990}
2991
2992PP(pp_ftchr)
2993{
cea2e8a9 2994 I32 result = my_stat();
4e35701f 2995 djSP;
a0d0e21e
LW		 2996 if (result < 0)
2997 RETPUSHUNDEF;
3280af22 2998 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 2999 RETPUSHYES;
3000 RETPUSHNO;
3001}
3002
3003PP(pp_ftblk)
3004{
cea2e8a9 3005 I32 result = my_stat();
4e35701f 3006 djSP;
a0d0e21e
LW		 3007 if (result < 0)
3008 RETPUSHUNDEF;
3280af22 3009 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3010 RETPUSHYES;
3011 RETPUSHNO;
3012}
3013
3014PP(pp_ftfile)
3015{
cea2e8a9 3016 I32 result = my_stat();
4e35701f 3017 djSP;
a0d0e21e
LW		 3018 if (result < 0)
3019 RETPUSHUNDEF;
3280af22 3020 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3021 RETPUSHYES;
3022 RETPUSHNO;
3023}
3024
3025PP(pp_ftdir)
3026{
cea2e8a9 3027 I32 result = my_stat();
4e35701f 3028 djSP;
a0d0e21e
LW		 3029 if (result < 0)
3030 RETPUSHUNDEF;
3280af22 3031 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3032 RETPUSHYES;
3033 RETPUSHNO;
3034}
3035
3036PP(pp_ftpipe)
3037{
cea2e8a9 3038 I32 result = my_stat();
4e35701f 3039 djSP;
a0d0e21e
LW		 3040 if (result < 0)
3041 RETPUSHUNDEF;
3280af22 3042 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3043 RETPUSHYES;
3044 RETPUSHNO;
3045}
3046
3047PP(pp_ftlink)
3048{
cea2e8a9 3049 I32 result = my_lstat();
4e35701f 3050 djSP;
a0d0e21e
LW		 3051 if (result < 0)
3052 RETPUSHUNDEF;
3280af22 3053 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3054 RETPUSHYES;
3055 RETPUSHNO;
3056}
3057
3058PP(pp_ftsuid)
3059{
4e35701f 3060 djSP;
a0d0e21e 3061#ifdef S_ISUID
cea2e8a9 3062 I32 result = my_stat();
a0d0e21e
LW		 3063 SPAGAIN;
3064 if (result < 0)
3065 RETPUSHUNDEF;
3280af22 3066 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3067 RETPUSHYES;
3068#endif
3069 RETPUSHNO;
3070}
3071
3072PP(pp_ftsgid)
3073{
4e35701f 3074 djSP;
a0d0e21e 3075#ifdef S_ISGID
cea2e8a9 3076 I32 result = my_stat();
a0d0e21e
LW		 3077 SPAGAIN;
3078 if (result < 0)
3079 RETPUSHUNDEF;
3280af22 3080 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3081 RETPUSHYES;
3082#endif
3083 RETPUSHNO;
3084}
3085
3086PP(pp_ftsvtx)
3087{
4e35701f 3088 djSP;
a0d0e21e 3089#ifdef S_ISVTX
cea2e8a9 3090 I32 result = my_stat();
a0d0e21e
LW		 3091 SPAGAIN;
3092 if (result < 0)
3093 RETPUSHUNDEF;
3280af22 3094 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3095 RETPUSHYES;
3096#endif
3097 RETPUSHNO;
3098}
3099
3100PP(pp_fttty)
3101{
4e35701f 3102 djSP;
a0d0e21e
LW		 3103 int fd;
3104 GV *gv;
fb73857a 3105 char *tmps = Nullch;
2d8e6c8d 3106 STRLEN n_a;
fb73857a 3107
533c011a 3108 if (PL_op->op_flags & OPf_REF)
146174a9 3109 gv = cGVOP_gv;
fb73857a 3110 else if (isGV(TOPs))
3111 gv = (GV*)POPs;
3112 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3113 gv = (GV*)SvRV(POPs);
a0d0e21e 3114 else
2d8e6c8d 3115 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3116
a0d0e21e 3117 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3118 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3119 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3120 fd = atoi(tmps);
3121 else
3122 RETPUSHUNDEF;
6ad3d225 3123 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3124 RETPUSHYES;
3125 RETPUSHNO;
3126}
3127
16d20bd9
AD		 3128#if defined(atarist) /* this will work with atariST. Configure will
3129 make guesses for other systems. */
3130# define FILE_base(f) ((f)->_base)
3131# define FILE_ptr(f) ((f)->_ptr)
3132# define FILE_cnt(f) ((f)->_cnt)
3133# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3134#endif
3135
3136PP(pp_fttext)
3137{
4e35701f 3138 djSP;
a0d0e21e
LW		 3139 I32 i;
3140 I32 len;
3141 I32 odd = 0;
3142 STDCHAR tbuf[512];
3143 register STDCHAR *s;
3144 register IO *io;
5f05dabc 3145 register SV *sv;
3146 GV *gv;
2d8e6c8d 3147 STRLEN n_a;
146174a9 3148 PerlIO *fp;
a0d0e21e 3149
533c011a 3150 if (PL_op->op_flags & OPf_REF)
146174a9 3151 gv = cGVOP_gv;
5f05dabc 3152 else if (isGV(TOPs))
3153 gv = (GV*)POPs;
3154 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3155 gv = (GV*)SvRV(POPs);
3156 else
3157 gv = Nullgv;
3158
3159 if (gv) {
a0d0e21e 3160 EXTEND(SP, 1);
3280af22
NIS		 3161 if (gv == PL_defgv) {
3162 if (PL_statgv)
3163 io = GvIO(PL_statgv);
a0d0e21e 3164 else {
3280af22 3165 sv = PL_statname;
a0d0e21e
LW		 3166 goto really_filename;
3167 }
3168 }
3169 else {
3280af22
NIS		 3170 PL_statgv = gv;
3171 PL_laststatval = -1;
3172 sv_setpv(PL_statname, "");
3173 io = GvIO(PL_statgv);
a0d0e21e
LW		 3174 }
3175 if (io && IoIFP(io)) {
5f05dabc 3176 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3177 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3178 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3179 if (PL_laststatval < 0)
5f05dabc 3180 RETPUSHUNDEF;
3280af22 3181 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
533c011a 3182 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3183 RETPUSHNO;
3184 else
3185 RETPUSHYES;
a20bf0c3 3186 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3187 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3188 if (i != EOF)
760ac839 3189 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3190 }
a20bf0c3 3191 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3192 RETPUSHYES;
a20bf0c3
JH		 3193 len = PerlIO_get_bufsiz(IoIFP(io));
3194 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3195 /* sfio can have large buffers - limit to 512 */
3196 if (len > 512)
3197 len = 512;
a0d0e21e
LW		 3198 }
3199 else {
2dd78f96 3200 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3201 gv = cGVOP_gv;
2dd78f96 3202 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3203 }
748a9306 3204 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3205 RETPUSHUNDEF;
3206 }
3207 }
3208 else {
3209 sv = POPs;
5f05dabc 3210 really_filename:
3280af22
NIS		 3211 PL_statgv = Nullgv;
3212 PL_laststatval = -1;
2d8e6c8d 3213 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3214 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3215 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3216 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3217 RETPUSHUNDEF;
3218 }
146174a9
CB		 3219 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3220 if (PL_laststatval < 0) {
3221 (void)PerlIO_close(fp);
5f05dabc 3222 RETPUSHUNDEF;
146174a9 3223 }
60382766 3224 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3225 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3226 (void)PerlIO_close(fp);
a0d0e21e 3227 if (len <= 0) {
533c011a 3228 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3229 RETPUSHNO; /* special case NFS directories */
3230 RETPUSHYES; /* null file is anything */
3231 }
3232 s = tbuf;
3233 }
3234
3235 /* now scan s to look for textiness */
4633a7c4 3236 /* XXX ASCII dependent code */
a0d0e21e 3237
146174a9
CB		 3238#if defined(DOSISH) || defined(USEMYBINMODE)
3239 /* ignore trailing ^Z on short files */
3240 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3241 --len;
3242#endif
3243
a0d0e21e
LW		 3244 for (i = 0; i < len; i++, s++) {
3245 if (!*s) { /* null never allowed in text */
3246 odd += len;
3247 break;
3248 }
9d116dd7 3249#ifdef EBCDIC
301e8125 3250 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3251 odd++;
3252#else
146174a9
CB		 3253 else if (*s & 128) {
3254#ifdef USE_LOCALE
b3f66c68
GS		 3255 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3256 continue;
3257#endif
3258 /* utf8 characters don't count as odd */
3259 if (*s & 0x40) {
3260 int ulen = UTF8SKIP(s);
3261 if (ulen < len - i) {
3262 int j;
3263 for (j = 1; j < ulen; j++) {
3264 if ((s[j] & 0xc0) != 0x80)
3265 goto not_utf8;
3266 }
3267 --ulen; /* loop does extra increment */
3268 s += ulen;
3269 i += ulen;
3270 continue;
3271 }
3272 }
3273 not_utf8:
3274 odd++;
146174a9 3275 }
a0d0e21e
LW		 3276 else if (*s < 32 &&
3277 *s != '\n' && *s != '\r' && *s != '\b' &&
3278 *s != '\t' && *s != '\f' && *s != 27)
3279 odd++;
9d116dd7 3280#endif
a0d0e21e
LW		 3281 }
3282
533c011a 3283 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3284 RETPUSHNO;
3285 else
3286 RETPUSHYES;
3287}
3288
3289PP(pp_ftbinary)
3290{
cea2e8a9 3291 return pp_fttext();
a0d0e21e
LW		 3292}
3293
3294/* File calls. */
3295
3296PP(pp_chdir)
3297{
4e35701f 3298 djSP; dTARGET;
a0d0e21e
LW		 3299 char *tmps;
3300 SV **svp;
2d8e6c8d 3301 STRLEN n_a;
a0d0e21e
LW		 3302
3303 if (MAXARG < 1)
3304 tmps = Nullch;
3305 else
2d8e6c8d 3306 tmps = POPpx;
a0d0e21e 3307 if (!tmps || !*tmps) {
3280af22 3308 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3309 if (svp)
2d8e6c8d 3310 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3311 }
3312 if (!tmps || !*tmps) {
3280af22 3313 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3314 if (svp)
2d8e6c8d 3315 tmps = SvPV(*svp, n_a);
a0d0e21e 3316 }
491527d0
GS		 3317#ifdef VMS
3318 if (!tmps || !*tmps) {
6b88bc9c 3319 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3320 if (svp)
2d8e6c8d 3321 tmps = SvPV(*svp, n_a);
491527d0
GS		 3322 }
3323#endif
a0d0e21e 3324 TAINT_PROPER("chdir");
6ad3d225 3325 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3326#ifdef VMS
3327 /* Clear the DEFAULT element of ENV so we'll get the new value
3328 * in the future. */
6b88bc9c 3329 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3330#endif
a0d0e21e
LW		 3331 RETURN;
3332}
3333
3334PP(pp_chown)
3335{
4e35701f 3336 djSP; dMARK; dTARGET;
a0d0e21e
LW		 3337 I32 value;
3338#ifdef HAS_CHOWN
533c011a 3339 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3340 SP = MARK;
3341 PUSHi(value);
3342 RETURN;
3343#else
cea2e8a9 3344 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3345#endif
3346}
3347
3348PP(pp_chroot)
3349{
4e35701f 3350 djSP; dTARGET;
a0d0e21e
LW		 3351 char *tmps;
3352#ifdef HAS_CHROOT
2d8e6c8d
GS		 3353 STRLEN n_a;
3354 tmps = POPpx;
a0d0e21e
LW		 3355 TAINT_PROPER("chroot");
3356 PUSHi( chroot(tmps) >= 0 );
3357 RETURN;
3358#else
cea2e8a9 3359 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3360#endif
3361}
3362
3363PP(pp_unlink)
3364{
4e35701f 3365 djSP; dMARK; dTARGET;
a0d0e21e 3366 I32 value;
533c011a 3367 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3368 SP = MARK;
3369 PUSHi(value);
3370 RETURN;
3371}
3372
3373PP(pp_chmod)
3374{
4e35701f 3375 djSP; dMARK; dTARGET;
a0d0e21e 3376 I32 value;
533c011a 3377 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3378 SP = MARK;
3379 PUSHi(value);
3380 RETURN;
3381}
3382
3383PP(pp_utime)
3384{
4e35701f 3385 djSP; dMARK; dTARGET;
a0d0e21e 3386 I32 value;
533c011a 3387 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3388 SP = MARK;
3389 PUSHi(value);
3390 RETURN;
3391}
3392
3393PP(pp_rename)
3394{
4e35701f 3395 djSP; dTARGET;
a0d0e21e 3396 int anum;
2d8e6c8d 3397 STRLEN n_a;
a0d0e21e 3398
2d8e6c8d
GS		 3399 char *tmps2 = POPpx;
3400 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3401 TAINT_PROPER("rename");
3402#ifdef HAS_RENAME
baed7233 3403 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3404#else
6b88bc9c 3405 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3406 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3407 anum = 1;
3408 else {
3654eb6c 3409 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3410 (void)UNLINK(tmps2);
3411 if (!(anum = link(tmps, tmps2)))
3412 anum = UNLINK(tmps);
3413 }
a0d0e21e
LW		 3414 }
3415#endif
3416 SETi( anum >= 0 );
3417 RETURN;
3418}
3419
3420PP(pp_link)
3421{
4e35701f 3422 djSP; dTARGET;
a0d0e21e 3423#ifdef HAS_LINK
2d8e6c8d
GS		 3424 STRLEN n_a;
3425 char *tmps2 = POPpx;
3426 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3427 TAINT_PROPER("link");
146174a9 3428 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3429#else
cea2e8a9 3430 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3431#endif
3432 RETURN;
3433}
3434
3435PP(pp_symlink)
3436{
4e35701f 3437 djSP; dTARGET;
a0d0e21e 3438#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3439 STRLEN n_a;
3440 char *tmps2 = POPpx;
3441 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3442 TAINT_PROPER("symlink");
3443 SETi( symlink(tmps, tmps2) >= 0 );
3444 RETURN;
3445#else
cea2e8a9 3446 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3447#endif
3448}
3449
3450PP(pp_readlink)
3451{
4e35701f 3452 djSP; dTARGET;
a0d0e21e
LW		 3453#ifdef HAS_SYMLINK
3454 char *tmps;
46fc3d4c 3455 char buf[MAXPATHLEN];
a0d0e21e 3456 int len;
2d8e6c8d 3457 STRLEN n_a;
46fc3d4c 3458
fb73857a 3459#ifndef INCOMPLETE_TAINTS
3460 TAINT;
3461#endif
2d8e6c8d 3462 tmps = POPpx;
a0d0e21e
LW		 3463 len = readlink(tmps, buf, sizeof buf);
3464 EXTEND(SP, 1);
3465 if (len < 0)
3466 RETPUSHUNDEF;
3467 PUSHp(buf, len);
3468 RETURN;
3469#else
3470 EXTEND(SP, 1);
3471 RETSETUNDEF; /* just pretend it's a normal file */
3472#endif
3473}
3474
3475#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3476STATIC int
cea2e8a9 3477S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3478{
1e422769 3479 char *save_filename = filename;
3480 char *cmdline;
3481 char *s;
760ac839 3482 PerlIO *myfp;
1e422769 3483 int anum = 1;
a0d0e21e 3484
1e422769 3485 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3486 strcpy(cmdline, cmd);
3487 strcat(cmdline, " ");
3488 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3489 *s++ = '\\';
3490 *s++ = *filename++;
3491 }
3492 strcpy(s, " 2>&1");
6ad3d225 3493 myfp = PerlProc_popen(cmdline, "r");
1e422769 3494 Safefree(cmdline);
3495
a0d0e21e 3496 if (myfp) {
1e422769 3497 SV *tmpsv = sv_newmortal();
6b88bc9c 3498 /* Need to save/restore 'PL_rs' ?? */
760ac839 3499 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3500 (void)PerlProc_pclose(myfp);
a0d0e21e 3501 if (s != Nullch) {
1e422769 3502 int e;
3503 for (e = 1;
a0d0e21e 3504#ifdef HAS_SYS_ERRLIST
1e422769 3505 e <= sys_nerr
3506#endif
3507 ; e++)
3508 {
3509 /* you don't see this */
3510 char *errmsg =
3511#ifdef HAS_SYS_ERRLIST
3512 sys_errlist[e]
a0d0e21e 3513#else
1e422769 3514 strerror(e)
a0d0e21e 3515#endif
1e422769 3516 ;
3517 if (!errmsg)
3518 break;
3519 if (instr(s, errmsg)) {
3520 SETERRNO(e,0);
3521 return 0;
3522 }
a0d0e21e 3523 }
748a9306 3524 SETERRNO(0,0);
a0d0e21e
LW		 3525#ifndef EACCES
3526#define EACCES EPERM
3527#endif
1e422769 3528 if (instr(s, "cannot make"))
748a9306 3529 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3530 else if (instr(s, "existing file"))
748a9306 3531 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3532 else if (instr(s, "ile exists"))
748a9306 3533 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3534 else if (instr(s, "non-exist"))
748a9306 3535 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3536 else if (instr(s, "does not exist"))
748a9306 3537 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3538 else if (instr(s, "not empty"))
748a9306 3539 SETERRNO(EBUSY,SS$_DEVOFFLINE);
1e422769 3540 else if (instr(s, "cannot access"))
748a9306 3541 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 3542 else
748a9306 3543 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 3544 return 0;
3545 }
3546 else { /* some mkdirs return no failure indication */
6b88bc9c 3547 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3548 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3549 anum = !anum;
3550 if (anum)
748a9306 3551 SETERRNO(0,0);
a0d0e21e 3552 else
748a9306 3553 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 3554 }
3555 return anum;
3556 }
3557 else
3558 return 0;
3559}
3560#endif
3561
3562PP(pp_mkdir)
3563{
4e35701f 3564 djSP; dTARGET;
5a211162 3565 int mode;
a0d0e21e
LW		 3566#ifndef HAS_MKDIR
3567 int oldumask;