This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
https://perl5.git.perl.org / perl5.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Re: [PATCH] Allow appending on a PerlIO::Scalar
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
bc89e66f 3 * Copyright (c) 1991-2001, 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{
39644a26 286 dSP; 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{
39644a26 405 dSP; 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{
39644a26 436 dSP; 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{
39644a26 495 dSP;
a567e93b
NIS		 496 dMARK; dORIGMARK;
497 dTARGET;
a0d0e21e
LW		 498 GV *gv;
499 SV *sv;
500 char *tmps;
501 STRLEN len;
4592e6ca 502 MAGIC *mg;
a567e93b 503 bool ok;
a0d0e21e 504
a567e93b 505 gv = (GV *)*++MARK;
5f05dabc 506 if (!isGV(gv))
cea2e8a9 507 DIE(aTHX_ PL_no_usym, "filehandle");
36477c24 508 if (GvIOp(gv))
509 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 510
155aba94 511 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
a567e93b
NIS		 512 /* Method's args are same as ours ... */
513 /* ... except handle is replaced by the object */
514 *MARK-- = SvTIED_obj((SV*)gv, mg);
515 PUSHMARK(MARK);
4592e6ca
NIS		 516 PUTBACK;
517 ENTER;
864dbfa3 518 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 519 LEAVE;
520 SPAGAIN;
521 RETURN;
522 }
523
a567e93b
NIS		 524 if (MARK < SP) {
525 sv = *++MARK;
526 }
527 else {
528 sv = GvSV(gv);
529 }
530
a0d0e21e 531 tmps = SvPV(sv, len);
a567e93b
NIS		 532 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
533 SP = ORIGMARK;
534 if (ok)
3280af22
NIS		 535 PUSHi( (I32)PL_forkprocess );
536 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 537 PUSHi(0);
538 else
539 RETPUSHUNDEF;
540 RETURN;
541}
542
543PP(pp_close)
544{
39644a26 545 dSP;
a0d0e21e 546 GV *gv;
1d603a67 547 MAGIC *mg;
a0d0e21e
LW		 548
549 if (MAXARG == 0)
3280af22 550 gv = PL_defoutgv;
a0d0e21e
LW		 551 else
552 gv = (GV*)POPs;
1d603a67 553
155aba94 554 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67 555 PUSHMARK(SP);
33c27489 556 XPUSHs(SvTIED_obj((SV*)gv, mg));
1d603a67
GB		 557 PUTBACK;
558 ENTER;
864dbfa3 559 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 560 LEAVE;
561 SPAGAIN;
562 RETURN;
563 }
a0d0e21e 564 EXTEND(SP, 1);
54310121 565 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 566 RETURN;
567}
568
569PP(pp_pipe_op)
570{
39644a26 571 dSP;
a0d0e21e
LW		 572#ifdef HAS_PIPE
573 GV *rgv;
574 GV *wgv;
575 register IO *rstio;
576 register IO *wstio;
577 int fd[2];
578
579 wgv = (GV*)POPs;
580 rgv = (GV*)POPs;
581
582 if (!rgv || !wgv)
583 goto badexit;
584
4633a7c4 585 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 586 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 587 rstio = GvIOn(rgv);
588 wstio = GvIOn(wgv);
589
590 if (IoIFP(rstio))
591 do_close(rgv, FALSE);
592 if (IoIFP(wstio))
593 do_close(wgv, FALSE);
594
6ad3d225 595 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 596 goto badexit;
597
760ac839
LW		 598 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
599 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
a0d0e21e 600 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 601 IoTYPE(rstio) = IoTYPE_RDONLY;
602 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 603
604 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 605 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 606 else PerlLIO_close(fd[0]);
760ac839 607 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 608 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 609 goto badexit;
610 }
4771b018
GS		 611#if defined(HAS_FCNTL) && defined(F_SETFD)
612 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
613 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
614#endif
a0d0e21e
LW		 615 RETPUSHYES;
616
617badexit:
618 RETPUSHUNDEF;
619#else
cea2e8a9 620 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 621#endif
622}
623
624PP(pp_fileno)
625{
39644a26 626 dSP; dTARGET;
a0d0e21e
LW		 627 GV *gv;
628 IO *io;
760ac839 629 PerlIO *fp;
4592e6ca
NIS		 630 MAGIC *mg;
631
a0d0e21e
LW		 632 if (MAXARG < 1)
633 RETPUSHUNDEF;
634 gv = (GV*)POPs;
4592e6ca
NIS		 635
636 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
637 PUSHMARK(SP);
638 XPUSHs(SvTIED_obj((SV*)gv, mg));
639 PUTBACK;
640 ENTER;
864dbfa3 641 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 642 LEAVE;
643 SPAGAIN;
644 RETURN;
645 }
646
c289d2f7
JH		 647 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
648 /* Can't do this because people seem to do things like
649 defined(fileno($foo)) to check whether $foo is a valid fh.
650 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
651 report_evil_fh(gv, io, PL_op->op_type);
652 */
a0d0e21e 653 RETPUSHUNDEF;
c289d2f7
JH		 654 }
655
760ac839 656 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 657 RETURN;
658}
659
660PP(pp_umask)
661{
39644a26 662 dSP; dTARGET;
761237fe 663 Mode_t anum;
a0d0e21e
LW		 664
665#ifdef HAS_UMASK
666 if (MAXARG < 1) {
6ad3d225
GS		 667 anum = PerlLIO_umask(0);
668 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 669 }
670 else
6ad3d225 671 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 672 TAINT_PROPER("umask");
673 XPUSHi(anum);
674#else
eec2d3df
GS		 675 /* Only DIE if trying to restrict permissions on `user' (self).
676 * Otherwise it's harmless and more useful to just return undef
677 * since 'group' and 'other' concepts probably don't exist here. */
678 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 679 DIE(aTHX_ "umask not implemented");
6b88bc9c 680 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 681#endif
682 RETURN;
683}
684
685PP(pp_binmode)
686{
39644a26 687 dSP;
a0d0e21e
LW		 688 GV *gv;
689 IO *io;
760ac839 690 PerlIO *fp;
4592e6ca 691 MAGIC *mg;
16fe6d59 692 SV *discp = Nullsv;
60382766
NIS		 693 STRLEN len = 0;
694 char *names = NULL;
a0d0e21e
LW		 695
696 if (MAXARG < 1)
697 RETPUSHUNDEF;
60382766 698 if (MAXARG > 1) {
16fe6d59 699 discp = POPs;
60382766 700 }
a0d0e21e 701
301e8125 702 gv = (GV*)POPs;
4592e6ca
NIS		 703
704 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
705 PUSHMARK(SP);
706 XPUSHs(SvTIED_obj((SV*)gv, mg));
16fe6d59
GS		 707 if (discp)
708 XPUSHs(discp);
4592e6ca
NIS		 709 PUTBACK;
710 ENTER;
864dbfa3 711 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 712 LEAVE;
713 SPAGAIN;
714 RETURN;
715 }
a0d0e21e
LW		 716
717 EXTEND(SP, 1);
50f846a7 718 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 719 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
720 report_evil_fh(gv, io, PL_op->op_type);
50f846a7
SC		 721 RETPUSHUNDEF;
722 }
a0d0e21e 723
60382766
NIS		 724 if (discp) {
725 names = SvPV(discp,len);
726 }
727
728 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
729 (discp) ? SvPV_nolen(discp) : Nullch))
a0d0e21e
LW		 730 RETPUSHYES;
731 else
732 RETPUSHUNDEF;
a0d0e21e
LW		 733}
734
735PP(pp_tie)
736{
39644a26 737 dSP;
e336de0d 738 dMARK;
a0d0e21e
LW		 739 SV *varsv;
740 HV* stash;
741 GV *gv;
a0d0e21e 742 SV *sv;
3280af22 743 I32 markoff = MARK - PL_stack_base;
a0d0e21e 744 char *methname;
6b05c17a 745 int how = 'P';
e336de0d 746 U32 items;
2d8e6c8d 747 STRLEN n_a;
a0d0e21e 748
e336de0d 749 varsv = *++MARK;
6b05c17a
NIS		 750 switch(SvTYPE(varsv)) {
751 case SVt_PVHV:
752 methname = "TIEHASH";
753 break;
754 case SVt_PVAV:
755 methname = "TIEARRAY";
756 break;
757 case SVt_PVGV:
5bd07a3d
DM		 758#ifdef GV_SHARED_CHECK
759 if (GvSHARED((GV*)varsv)) {
760 Perl_croak(aTHX_ "Attempt to tie shared GV");
761 }
762#endif
6b05c17a
NIS		 763 methname = "TIEHANDLE";
764 how = 'q';
765 break;
766 default:
767 methname = "TIESCALAR";
768 how = 'q';
769 break;
770 }
e336de0d
GS		 771 items = SP - MARK++;
772 if (sv_isobject(*MARK)) {
6b05c17a 773 ENTER;
e788e7d3 774 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 775 PUSHMARK(SP);
776 EXTEND(SP,items);
777 while (items--)
778 PUSHs(*MARK++);
779 PUTBACK;
864dbfa3 780 call_method(methname, G_SCALAR);
301e8125 781 }
6b05c17a 782 else {
864dbfa3 783 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 784 * perhaps to get different error message ?
785 */
e336de0d 786 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 787 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 788 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 789 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 790 }
791 ENTER;
e788e7d3 792 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 793 PUSHMARK(SP);
794 EXTEND(SP,items);
795 while (items--)
796 PUSHs(*MARK++);
797 PUTBACK;
864dbfa3 798 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 799 }
a0d0e21e
LW		 800 SPAGAIN;
801
802 sv = TOPs;
d3acc0f7 803 POPSTACK;
a0d0e21e 804 if (sv_isobject(sv)) {
33c27489 805 sv_unmagic(varsv, how);
ae21d580
JH		 806 /* Croak if a self-tie on an aggregate is attempted. */
807 if (varsv == SvRV(sv) &&
808 (SvTYPE(sv) == SVt_PVAV ||
809 SvTYPE(sv) == SVt_PVHV))
810 Perl_croak(aTHX_
811 "Self-ties of arrays and hashes are not supported");
68a4a7e4 812 sv_magic(varsv, sv, how, Nullch, 0);
a0d0e21e
LW		 813 }
814 LEAVE;
3280af22 815 SP = PL_stack_base + markoff;
a0d0e21e
LW		 816 PUSHs(sv);
817 RETURN;
818}
819
820PP(pp_untie)
821{
39644a26 822 dSP;
33c27489
GS		 823 SV *sv = POPs;
824 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
55497cff 825
cbdc8872 826 MAGIC * mg ;
155aba94 827 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 828 SV *obj = SvRV(mg->mg_obj);
829 GV *gv;
830 CV *cv = NULL;
a29a5827
NIS		 831 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
832 isGV(gv) && (cv = GvCV(gv))) {
833 PUSHMARK(SP);
834 XPUSHs(SvTIED_obj((SV*)gv, mg));
301e8125 835 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
a29a5827
NIS		 836 PUTBACK;
837 ENTER;
838 call_sv((SV *)cv, G_VOID);
839 LEAVE;
840 SPAGAIN;
cbdc8872 841 }
301e8125
NIS		 842 else if (ckWARN(WARN_UNTIE)) {
843 if (mg && SvREFCNT(obj) > 1)
844 Perl_warner(aTHX_ WARN_UNTIE,
845 "untie attempted while %"UVuf" inner references still exist",
846 (UV)SvREFCNT(obj) - 1 ) ;
847 }
cbdc8872 848 }
33c27489 849 sv_unmagic(sv, how);
55497cff 850 RETPUSHYES;
a0d0e21e
LW		 851}
852
c07a80fd 853PP(pp_tied)
854{
39644a26 855 dSP;
33c27489
GS		 856 SV *sv = POPs;
857 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
858 MAGIC *mg;
c07a80fd 859
155aba94 860 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 861 SV *osv = SvTIED_obj(sv, mg);
862 if (osv == mg->mg_obj)
863 osv = sv_mortalcopy(osv);
864 PUSHs(osv);
865 RETURN;
c07a80fd 866 }
c07a80fd 867 RETPUSHUNDEF;
868}
869
a0d0e21e
LW		 870PP(pp_dbmopen)
871{
39644a26 872 dSP;
a0d0e21e
LW		 873 HV *hv;
874 dPOPPOPssrl;
875 HV* stash;
876 GV *gv;
a0d0e21e
LW		 877 SV *sv;
878
879 hv = (HV*)POPs;
880
3280af22 881 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 882 sv_setpv(sv, "AnyDBM_File");
883 stash = gv_stashsv(sv, FALSE);
8ebc5c01 884 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 885 PUTBACK;
864dbfa3 886 require_pv("AnyDBM_File.pm");
a0d0e21e 887 SPAGAIN;
8ebc5c01 888 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 889 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 890 }
891
57d3b86d 892 ENTER;
924508f0 893 PUSHMARK(SP);
6b05c17a 894
924508f0 895 EXTEND(SP, 5);
a0d0e21e
LW		 896 PUSHs(sv);
897 PUSHs(left);
898 if (SvIV(right))
b448e4fe 899 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 900 else
b448e4fe 901 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 902 PUSHs(right);
57d3b86d 903 PUTBACK;
864dbfa3 904 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 905 SPAGAIN;
906
907 if (!sv_isobject(TOPs)) {
924508f0
GS		 908 SP--;
909 PUSHMARK(SP);
a0d0e21e
LW		 910 PUSHs(sv);
911 PUSHs(left);
b448e4fe 912 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 913 PUSHs(right);
a0d0e21e 914 PUTBACK;
864dbfa3 915 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 916 SPAGAIN;
917 }
918
6b05c17a 919 if (sv_isobject(TOPs)) {
301e8125 920 sv_unmagic((SV *) hv, 'P');
a0d0e21e 921 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 922 }
a0d0e21e
LW		 923 LEAVE;
924 RETURN;
925}
926
927PP(pp_dbmclose)
928{
cea2e8a9 929 return pp_untie();
a0d0e21e
LW		 930}
931
932PP(pp_sselect)
933{
39644a26 934 dSP; dTARGET;
a0d0e21e
LW		 935#ifdef HAS_SELECT
936 register I32 i;
937 register I32 j;
938 register char *s;
939 register SV *sv;
65202027 940 NV value;
a0d0e21e
LW		 941 I32 maxlen = 0;
942 I32 nfound;
943 struct timeval timebuf;
944 struct timeval *tbuf = &timebuf;
945 I32 growsize;
946 char *fd_sets[4];
2d8e6c8d 947 STRLEN n_a;
a0d0e21e
LW		 948#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
949 I32 masksize;
950 I32 offset;
951 I32 k;
952
953# if BYTEORDER & 0xf0000
954# define ORDERBYTE (0x88888888 - BYTEORDER)
955# else
956# define ORDERBYTE (0x4444 - BYTEORDER)
957# endif
958
959#endif
960
961 SP -= 4;
962 for (i = 1; i <= 3; i++) {
963 if (!SvPOK(SP[i]))
964 continue;
965 j = SvCUR(SP[i]);
966 if (maxlen < j)
967 maxlen = j;
968 }
969
5ff3f7a4 970/* little endians can use vecs directly */
a0d0e21e 971#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 972# if SELECT_MIN_BITS > 1
f2da832e
JH		 973 /* If SELECT_MIN_BITS is greater than one we most probably will want
974 * to align the sizes with SELECT_MIN_BITS/8 because for example
975 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 976 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 977 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 978 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 979# else
4633a7c4 980 growsize = sizeof(fd_set);
5ff3f7a4
GS		 981# endif
982# else
983# ifdef NFDBITS
a0d0e21e 984
5ff3f7a4
GS		 985# ifndef NBBY
986# define NBBY 8
987# endif
a0d0e21e
LW		 988
989 masksize = NFDBITS / NBBY;
5ff3f7a4 990# else
a0d0e21e 991 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 992# endif
a0d0e21e
LW		 993 growsize = maxlen + (masksize - (maxlen % masksize));
994 Zero(&fd_sets[0], 4, char*);
995#endif
996
997 sv = SP[4];
998 if (SvOK(sv)) {
999 value = SvNV(sv);
1000 if (value < 0.0)
1001 value = 0.0;
1002 timebuf.tv_sec = (long)value;
65202027 1003 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1004 timebuf.tv_usec = (long)(value * 1000000.0);
1005 }
1006 else
1007 tbuf = Null(struct timeval*);
1008
1009 for (i = 1; i <= 3; i++) {
1010 sv = SP[i];
1011 if (!SvOK(sv)) {
1012 fd_sets[i] = 0;
1013 continue;
1014 }
1015 else if (!SvPOK(sv))
2d8e6c8d 1016 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1017 j = SvLEN(sv);
1018 if (j < growsize) {
1019 Sv_Grow(sv, growsize);
a0d0e21e 1020 }
c07a80fd 1021 j = SvCUR(sv);
1022 s = SvPVX(sv) + j;
1023 while (++j <= growsize) {
1024 *s++ = '\0';
1025 }
1026
a0d0e21e
LW		 1027#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1028 s = SvPVX(sv);
1029 New(403, fd_sets[i], growsize, char);
1030 for (offset = 0; offset < growsize; offset += masksize) {
1031 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1032 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1033 }
1034#else
1035 fd_sets[i] = SvPVX(sv);
1036#endif
1037 }
1038
6ad3d225 1039 nfound = PerlSock_select(
a0d0e21e
LW		 1040 maxlen * 8,
1041 (Select_fd_set_t) fd_sets[1],
1042 (Select_fd_set_t) fd_sets[2],
1043 (Select_fd_set_t) fd_sets[3],
1044 tbuf);
1045 for (i = 1; i <= 3; i++) {
1046 if (fd_sets[i]) {
1047 sv = SP[i];
1048#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1049 s = SvPVX(sv);
1050 for (offset = 0; offset < growsize; offset += masksize) {
1051 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1052 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1053 }
1054 Safefree(fd_sets[i]);
1055#endif
1056 SvSETMAGIC(sv);
1057 }
1058 }
1059
1060 PUSHi(nfound);
1061 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1062 value = (NV)(timebuf.tv_sec) +
1063 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1064 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1065 sv_setnv(sv, value);
1066 }
1067 RETURN;
1068#else
cea2e8a9 1069 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1070#endif
1071}
1072
4633a7c4 1073void
864dbfa3 1074Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1075{
1076 if (gv)
1077 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1078 if (PL_defoutgv)
1079 SvREFCNT_dec(PL_defoutgv);
1080 PL_defoutgv = gv;
4633a7c4
LW		 1081}
1082
a0d0e21e
LW		 1083PP(pp_select)
1084{
39644a26 1085 dSP; dTARGET;
4633a7c4
LW		 1086 GV *newdefout, *egv;
1087 HV *hv;
1088
533c011a 1089 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1090
3280af22 1091 egv = GvEGV(PL_defoutgv);
4633a7c4 1092 if (!egv)
3280af22 1093 egv = PL_defoutgv;
4633a7c4
LW		 1094 hv = GvSTASH(egv);
1095 if (! hv)
3280af22 1096 XPUSHs(&PL_sv_undef);
4633a7c4 1097 else {
cbdc8872 1098 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1099 if (gvp && *gvp == egv) {
f7aaccc2 1100 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1101 XPUSHTARG;
1102 }
1103 else {
1104 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1105 }
4633a7c4
LW		 1106 }
1107
1108 if (newdefout) {
ded8aa31
GS		 1109 if (!GvIO(newdefout))
1110 gv_IOadd(newdefout);
4633a7c4
LW		 1111 setdefout(newdefout);
1112 }
1113
a0d0e21e
LW		 1114 RETURN;
1115}
1116
1117PP(pp_getc)
1118{
39644a26 1119 dSP; dTARGET;
a0d0e21e 1120 GV *gv;
2ae324a7 1121 MAGIC *mg;
a0d0e21e 1122
32da55ab 1123 if (MAXARG == 0)
3280af22 1124 gv = PL_stdingv;
a0d0e21e
LW		 1125 else
1126 gv = (GV*)POPs;
2ae324a7 1127
155aba94 1128 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1129 I32 gimme = GIMME_V;
2ae324a7 1130 PUSHMARK(SP);
33c27489 1131 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1132 PUTBACK;
1133 ENTER;
864dbfa3 1134 call_method("GETC", gimme);
2ae324a7 1135 LEAVE;
1136 SPAGAIN;
54310121 1137 if (gimme == G_SCALAR)
1138 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1139 RETURN;
1140 }
9bc64814 1141 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1142 RETPUSHUNDEF;
bbce6d69 1143 TAINT;
a0d0e21e 1144 sv_setpv(TARG, " ");
9bc64814 1145 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1146 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1147 /* Find out how many bytes the char needs */
1148 Size_t len = UTF8SKIP(SvPVX(TARG));
1149 if (len > 1) {
1150 SvGROW(TARG,len+1);
1151 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1152 SvCUR_set(TARG,1+len);
1153 }
1154 SvUTF8_on(TARG);
1155 }
a0d0e21e
LW		 1156 PUSHTARG;
1157 RETURN;
1158}
1159
1160PP(pp_read)
1161{
cea2e8a9 1162 return pp_sysread();
a0d0e21e
LW		 1163}
1164
76e3520e 1165STATIC OP *
cea2e8a9 1166S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1167{
c09156bb 1168 register PERL_CONTEXT *cx;
54310121 1169 I32 gimme = GIMME_V;
a0d0e21e
LW		 1170 AV* padlist = CvPADLIST(cv);
1171 SV** svp = AvARRAY(padlist);
1172
1173 ENTER;
1174 SAVETMPS;
1175
1176 push_return(retop);
146174a9 1177 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1178 PUSHFORMAT(cx);
146174a9 1179 SAVEVPTR(PL_curpad);
3280af22 1180 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1181
4633a7c4 1182 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1183 return CvSTART(cv);
1184}
1185
1186PP(pp_enterwrite)
1187{
39644a26 1188 dSP;
a0d0e21e
LW		 1189 register GV *gv;
1190 register IO *io;
1191 GV *fgv;
1192 CV *cv;
1193
1194 if (MAXARG == 0)
3280af22 1195 gv = PL_defoutgv;
a0d0e21e
LW		 1196 else {
1197 gv = (GV*)POPs;
1198 if (!gv)
3280af22 1199 gv = PL_defoutgv;
a0d0e21e
LW		 1200 }
1201 EXTEND(SP, 1);
1202 io = GvIO(gv);
1203 if (!io) {
1204 RETPUSHNO;
1205 }
1206 if (IoFMT_GV(io))
1207 fgv = IoFMT_GV(io);
1208 else
1209 fgv = gv;
1210
1211 cv = GvFORM(fgv);
a0d0e21e 1212 if (!cv) {
2dd78f96 1213 char *name = NULL;
a0d0e21e 1214 if (fgv) {
748a9306 1215 SV *tmpsv = sv_newmortal();
43693395 1216 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1217 name = SvPV_nolen(tmpsv);
a0d0e21e 1218 }
2dd78f96
JH		 1219 if (name && *name)
1220 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1221 DIE(aTHX_ "Not a format reference");
a0d0e21e 1222 }
44a8e56a 1223 if (CvCLONE(cv))
1224 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1225
44a8e56a 1226 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1227 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1228}
1229
1230PP(pp_leavewrite)
1231{
39644a26 1232 dSP;
a0d0e21e
LW		 1233 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1234 register IO *io = GvIOp(gv);
760ac839
LW		 1235 PerlIO *ofp = IoOFP(io);
1236 PerlIO *fp;
a0d0e21e
LW		 1237 SV **newsp;
1238 I32 gimme;
c09156bb 1239 register PERL_CONTEXT *cx;
a0d0e21e 1240
760ac839 1241 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1242 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1243 if (!io || !ofp)
1244 goto forget_top;
3280af22
NIS		 1245 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1246 PL_formtarget != PL_toptarget)
a0d0e21e 1247 {
4633a7c4
LW		 1248 GV *fgv;
1249 CV *cv;
a0d0e21e
LW		 1250 if (!IoTOP_GV(io)) {
1251 GV *topgv;
46fc3d4c 1252 SV *topname;
a0d0e21e
LW		 1253
1254 if (!IoTOP_NAME(io)) {
1255 if (!IoFMT_NAME(io))
1256 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1257 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1258 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1259 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1260 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1261 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1262 else
1263 IoTOP_NAME(io) = savepv("top");
1264 }
1265 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1266 if (!topgv || !GvFORM(topgv)) {
1267 IoLINES_LEFT(io) = 100000000;
1268 goto forget_top;
1269 }
1270 IoTOP_GV(io) = topgv;
1271 }
748a9306
LW		 1272 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1273 I32 lines = IoLINES_LEFT(io);
3280af22 1274 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1275 if (lines <= 0) /* Yow, header didn't even fit!!! */
1276 goto forget_top;
748a9306
LW		 1277 while (lines-- > 0) {
1278 s = strchr(s, '\n');
1279 if (!s)
1280 break;
1281 s++;
1282 }
1283 if (s) {
d75029d0
NIS		 1284 STRLEN save = SvCUR(PL_formtarget);
1285 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1286 do_print(PL_formtarget, ofp);
1287 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1288 sv_chop(PL_formtarget, s);
1289 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1290 }
1291 }
a0d0e21e 1292 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1293 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1294 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1295 IoPAGE(io)++;
3280af22 1296 PL_formtarget = PL_toptarget;
748a9306 1297 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1298 fgv = IoTOP_GV(io);
1299 if (!fgv)
cea2e8a9 1300 DIE(aTHX_ "bad top format reference");
4633a7c4 1301 cv = GvFORM(fgv);
2dd78f96
JH		 1302 {
1303 char *name = NULL;
1304 if (!cv) {
1305 SV *sv = sv_newmortal();
1306 gv_efullname4(sv, fgv, Nullch, FALSE);
1307 name = SvPV_nolen(sv);
1308 }
1309 if (name && *name)
1310 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1311 /* why no:
1312 else
1313 DIE(aTHX_ "Undefined top format called");
1314 ?*/
4633a7c4 1315 }
44a8e56a 1316 if (CvCLONE(cv))
1317 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1318 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1319 }
1320
1321 forget_top:
3280af22 1322 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1323 POPFORMAT(cx);
1324 LEAVE;
1325
1326 fp = IoOFP(io);
1327 if (!fp) {
599cee73 1328 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1329 if (IoIFP(io)) {
2dd78f96
JH		 1330 /* integrate with report_evil_fh()? */
1331 char *name = NULL;
1332 if (isGV(gv)) {
1333 SV* sv = sv_newmortal();
1334 gv_efullname4(sv, gv, Nullch, FALSE);
1335 name = SvPV_nolen(sv);
1336 }
1337 if (name && *name)
1338 Perl_warner(aTHX_ WARN_IO,
1339 "Filehandle %s opened only for input", name);
1340 else
1341 Perl_warner(aTHX_ WARN_IO,
1342 "Filehandle opened only for input");
cb50131a 1343 }
599cee73 1344 else if (ckWARN(WARN_CLOSED))
bc37a18f 1345 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1346 }
3280af22 1347 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1348 }
1349 else {
3280af22 1350 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1351 if (ckWARN(WARN_IO))
cea2e8a9 1352 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1353 }
d75029d0 1354 if (!do_print(PL_formtarget, fp))
3280af22 1355 PUSHs(&PL_sv_no);
a0d0e21e 1356 else {
3280af22
NIS		 1357 FmLINES(PL_formtarget) = 0;
1358 SvCUR_set(PL_formtarget, 0);
1359 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1360 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1361 (void)PerlIO_flush(fp);
3280af22 1362 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1363 }
1364 }
9cbac4c7 1365 /* bad_ofp: */
3280af22 1366 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1367 PUTBACK;
1368 return pop_return();
1369}
1370
1371PP(pp_prtf)
1372{
39644a26 1373 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1374 GV *gv;
1375 IO *io;
760ac839 1376 PerlIO *fp;
26db47c4 1377 SV *sv;
46fc3d4c 1378 MAGIC *mg;
a0d0e21e 1379
533c011a 1380 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1381 gv = (GV*)*++MARK;
1382 else
3280af22 1383 gv = PL_defoutgv;
46fc3d4c 1384
155aba94 1385 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1386 if (MARK == ORIGMARK) {
4352c267 1387 MEXTEND(SP, 1);
46fc3d4c 1388 ++MARK;
1389 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1390 ++SP;
1391 }
1392 PUSHMARK(MARK - 1);
33c27489 1393 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1394 PUTBACK;
1395 ENTER;
864dbfa3 1396 call_method("PRINTF", G_SCALAR);
46fc3d4c 1397 LEAVE;
1398 SPAGAIN;
1399 MARK = ORIGMARK + 1;
1400 *MARK = *SP;
1401 SP = MARK;
1402 RETURN;
1403 }
1404
26db47c4 1405 sv = NEWSV(0,0);
a0d0e21e 1406 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1407 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1408 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1409 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1410 goto just_say_no;
1411 }
1412 else if (!(fp = IoOFP(io))) {
599cee73 1413 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1414 /* integrate with report_evil_fh()? */
cb50131a 1415 if (IoIFP(io)) {
2dd78f96
JH		 1416 char *name = NULL;
1417 if (isGV(gv)) {
1418 gv_efullname4(sv, gv, Nullch, FALSE);
1419 name = SvPV_nolen(sv);
1420 }
1421 if (name && *name)
1422 Perl_warner(aTHX_ WARN_IO,
1423 "Filehandle %s opened only for input", name);
1424 else
1425 Perl_warner(aTHX_ WARN_IO,
1426 "Filehandle opened only for input");
cb50131a 1427 }
599cee73 1428 else if (ckWARN(WARN_CLOSED))
bc37a18f 1429 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1430 }
748a9306 1431 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1432 goto just_say_no;
1433 }
1434 else {
1435 do_sprintf(sv, SP - MARK, MARK + 1);
1436 if (!do_print(sv, fp))
1437 goto just_say_no;
1438
1439 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1440 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1441 goto just_say_no;
1442 }
1443 SvREFCNT_dec(sv);
1444 SP = ORIGMARK;
3280af22 1445 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1446 RETURN;
1447
1448 just_say_no:
1449 SvREFCNT_dec(sv);
1450 SP = ORIGMARK;
3280af22 1451 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1452 RETURN;
1453}
1454
c07a80fd 1455PP(pp_sysopen)
1456{
39644a26 1457 dSP;
c07a80fd 1458 GV *gv;
c07a80fd 1459 SV *sv;
1460 char *tmps;
1461 STRLEN len;
1462 int mode, perm;
1463
1464 if (MAXARG > 3)
1465 perm = POPi;
1466 else
1467 perm = 0666;
1468 mode = POPi;
1469 sv = POPs;
1470 gv = (GV *)POPs;
1471
4592e6ca
NIS		 1472 /* Need TIEHANDLE method ? */
1473
c07a80fd 1474 tmps = SvPV(sv, len);
1475 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1476 IoLINES(GvIOp(gv)) = 0;
3280af22 1477 PUSHs(&PL_sv_yes);
c07a80fd 1478 }
1479 else {
3280af22 1480 PUSHs(&PL_sv_undef);
c07a80fd 1481 }
1482 RETURN;
1483}
1484
a0d0e21e
LW		 1485PP(pp_sysread)
1486{
39644a26 1487 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1488 int offset;
1489 GV *gv;
1490 IO *io;
1491 char *buffer;
5b54f415 1492 SSize_t length;
eb5c063a 1493 SSize_t count;
1e422769 1494 Sock_size_t bufsize;
748a9306 1495 SV *bufsv;
a0d0e21e 1496 STRLEN blen;
2ae324a7 1497 MAGIC *mg;
eb5c063a
NIS		 1498 int fp_utf8;
1499 Size_t got = 0;
1500 Size_t wanted;
a0d0e21e
LW		 1501
1502 gv = (GV*)*++MARK;
533c011a 1503 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1504 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1505 {
2ae324a7 1506 SV *sv;
1507
1508 PUSHMARK(MARK-1);
33c27489 1509 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1510 ENTER;
864dbfa3 1511 call_method("READ", G_SCALAR);
2ae324a7 1512 LEAVE;
1513 SPAGAIN;
1514 sv = POPs;
1515 SP = ORIGMARK;
1516 PUSHs(sv);
1517 RETURN;
1518 }
1519
a0d0e21e
LW		 1520 if (!gv)
1521 goto say_undef;
748a9306 1522 bufsv = *++MARK;
ff68c719 1523 if (! SvOK(bufsv))
1524 sv_setpvn(bufsv, "", 0);
a0d0e21e 1525 length = SvIVx(*++MARK);
748a9306 1526 SETERRNO(0,0);
a0d0e21e
LW		 1527 if (MARK < SP)
1528 offset = SvIVx(*++MARK);
1529 else
1530 offset = 0;
1531 io = GvIO(gv);
1532 if (!io || !IoIFP(io))
1533 goto say_undef;
eb5c063a 1534 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTE) {
7d59b7e4 1535 buffer = SvPVutf8_force(bufsv, blen);
eb5c063a
NIS		 1536 /* UTF8 may not have been set if they are all low bytes */
1537 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1538 }
1539 else {
1540 buffer = SvPV_force(bufsv, blen);
1541 }
1542 if (length < 0)
1543 DIE(aTHX_ "Negative length");
eb5c063a 1544 wanted = length;
7d59b7e4 1545
a0d0e21e 1546#ifdef HAS_SOCKET
533c011a 1547 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1548 char namebuf[MAXPATHLEN];
eec2d3df 1549#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1550 bufsize = sizeof (struct sockaddr_in);
1551#else
46fc3d4c 1552 bufsize = sizeof namebuf;
490ab354 1553#endif
abf95952
IZ		 1554#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1555 if (bufsize >= 256)
1556 bufsize = 255;
1557#endif
748a9306 1558 buffer = SvGROW(bufsv, length+1);
bbce6d69 1559 /* 'offset' means 'flags' here */
eb5c063a 1560 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1561 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1562 if (count < 0)
a0d0e21e 1563 RETPUSHUNDEF;
4107cc59
OF		 1564#ifdef EPOC
1565 /* Bogus return without padding */
1566 bufsize = sizeof (struct sockaddr_in);
1567#endif
eb5c063a 1568 SvCUR_set(bufsv, count);
748a9306
LW		 1569 *SvEND(bufsv) = '\0';
1570 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1571 if (fp_utf8)
1572 SvUTF8_on(bufsv);
748a9306 1573 SvSETMAGIC(bufsv);
aac0dd9a 1574 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1575 if (!(IoFLAGS(io) & IOf_UNTAINT))
1576 SvTAINTED_on(bufsv);
a0d0e21e 1577 SP = ORIGMARK;
46fc3d4c 1578 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1579 PUSHs(TARG);
1580 RETURN;
1581 }
1582#else
911d147d 1583 if (PL_op->op_type == OP_RECV)
cea2e8a9 1584 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1585#endif
eb5c063a
NIS		 1586 if (DO_UTF8(bufsv)) {
1587 /* offset adjust in characters not bytes */
1588 blen = sv_len_utf8(bufsv);
7d59b7e4 1589 }
bbce6d69 1590 if (offset < 0) {
1591 if (-offset > blen)
cea2e8a9 1592 DIE(aTHX_ "Offset outside string");
bbce6d69 1593 offset += blen;
1594 }
eb5c063a
NIS		 1595 if (DO_UTF8(bufsv)) {
1596 /* convert offset-as-chars to offset-as-bytes */
1597 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1598 }
1599 more_bytes:
cd52b7b2 1600 bufsize = SvCUR(bufsv);
eb5c063a 1601 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1602 if (offset > bufsize) { /* Zero any newly allocated space */
1603 Zero(buffer+bufsize, offset-bufsize, char);
1604 }
eb5c063a
NIS		 1605 buffer = buffer + offset;
1606
533c011a 1607 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1608#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1609 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1610 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1611 buffer, length, 0);
a7092146
GS		 1612 }
1613 else
1614#endif
1615 {
eb5c063a
NIS		 1616 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1617 buffer, length);
a7092146 1618 }
a0d0e21e
LW		 1619 }
1620 else
1621#ifdef HAS_SOCKET__bad_code_maybe
50952442 1622 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1623 char namebuf[MAXPATHLEN];
490ab354
JH		 1624#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1625 bufsize = sizeof (struct sockaddr_in);
1626#else
46fc3d4c 1627 bufsize = sizeof namebuf;
490ab354 1628#endif
eb5c063a 1629 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1630 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1631 }
1632 else
1633#endif
3b02c43c 1634 {
eb5c063a
NIS		 1635 count = PerlIO_read(IoIFP(io), buffer, length);
1636 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1637 if (count == 0 && PerlIO_error(IoIFP(io)))
1638 count = -1;
3b02c43c 1639 }
eb5c063a 1640 if (count < 0) {
a00b5bd3 1641 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
af8c498a 1642 {
2dd78f96
JH		 1643 /* integrate with report_evil_fh()? */
1644 char *name = NULL;
1645 if (isGV(gv)) {
1646 SV* sv = sv_newmortal();
1647 gv_efullname4(sv, gv, Nullch, FALSE);
1648 name = SvPV_nolen(sv);
1649 }
1650 if (name && *name)
1651 Perl_warner(aTHX_ WARN_IO,
1652 "Filehandle %s opened only for output", name);
1653 else
1654 Perl_warner(aTHX_ WARN_IO,
1655 "Filehandle opened only for output");
af8c498a 1656 }
a0d0e21e 1657 goto say_undef;
af8c498a 1658 }
eb5c063a 1659 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1660 *SvEND(bufsv) = '\0';
1661 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1662 if (fp_utf8 && !IN_BYTE) {
1663 /* Look at utf8 we got back and count the characters */
1664 char *bend = buffer + count;
1665 while (buffer < bend) {
1666 STRLEN skip = UTF8SKIP(buffer);
1667 if (buffer+skip > bend) {
1668 /* partial character - try for rest of it */
1669 length = skip - (bend-buffer);
1670 offset = bend - SvPVX(bufsv);
1671 goto more_bytes;
1672 }
1673 else {
1674 got++;
1675 buffer += skip;
1676 }
1677 }
1678 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1679 provided amount read (count) was what was requested (length)
1680 */
1681 if (got < wanted && count == length) {
1682 length = (wanted-got);
1683 offset = bend - SvPVX(bufsv);
1684 goto more_bytes;
1685 }
1686 /* return value is character count */
1687 count = got;
1688 SvUTF8_on(bufsv);
1689 }
748a9306 1690 SvSETMAGIC(bufsv);
aac0dd9a 1691 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1692 if (!(IoFLAGS(io) & IOf_UNTAINT))
1693 SvTAINTED_on(bufsv);
a0d0e21e 1694 SP = ORIGMARK;
eb5c063a 1695 PUSHi(count);
a0d0e21e
LW		 1696 RETURN;
1697
1698 say_undef:
1699 SP = ORIGMARK;
1700 RETPUSHUNDEF;
1701}
1702
1703PP(pp_syswrite)
1704{
39644a26 1705 dSP;
092bebab
JH		 1706 int items = (SP - PL_stack_base) - TOPMARK;
1707 if (items == 2) {
9f089d78 1708 SV *sv;
092bebab 1709 EXTEND(SP, 1);
9f089d78
SB		 1710 sv = sv_2mortal(newSViv(sv_len(*SP)));
1711 PUSHs(sv);
092bebab
JH		 1712 PUTBACK;
1713 }
cea2e8a9 1714 return pp_send();
a0d0e21e
LW		 1715}
1716
1717PP(pp_send)
1718{
39644a26 1719 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1720 GV *gv;
1721 IO *io;
748a9306 1722 SV *bufsv;
a0d0e21e 1723 char *buffer;
8c99d73e
GS		 1724 Size_t length;
1725 SSize_t retval;
a0d0e21e 1726 STRLEN blen;
1d603a67 1727 MAGIC *mg;
a0d0e21e
LW		 1728
1729 gv = (GV*)*++MARK;
33c27489 1730 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1731 SV *sv;
1732
1733 PUSHMARK(MARK-1);
33c27489 1734 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1735 ENTER;
864dbfa3 1736 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1737 LEAVE;
1738 SPAGAIN;
1739 sv = POPs;
1740 SP = ORIGMARK;
1741 PUSHs(sv);
1742 RETURN;
1743 }
a0d0e21e
LW		 1744 if (!gv)
1745 goto say_undef;
748a9306 1746 bufsv = *++MARK;
8c99d73e 1747#if Size_t_size > IVSIZE
3c001241 1748 length = (Size_t)SvNVx(*++MARK);
146174a9 1749#else
3c001241 1750 length = (Size_t)SvIVx(*++MARK);
146174a9 1751#endif
3c001241 1752 if ((SSize_t)length < 0)
cea2e8a9 1753 DIE(aTHX_ "Negative length");
748a9306 1754 SETERRNO(0,0);
a0d0e21e
LW		 1755 io = GvIO(gv);
1756 if (!io || !IoIFP(io)) {
8c99d73e 1757 retval = -1;
bc37a18f
RG		 1758 if (ckWARN(WARN_CLOSED))
1759 report_evil_fh(gv, io, PL_op->op_type);
7d59b7e4
NIS		 1760 goto say_undef;
1761 }
1762
1763 if (PerlIO_isutf8(IoIFP(io))) {
1764 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1765 }
7d59b7e4
NIS		 1766 else {
1767 if (DO_UTF8(bufsv))
1768 sv_utf8_downgrade(bufsv, FALSE);
1769 buffer = SvPV(bufsv, blen);
1770 }
1771
1772 if (PL_op->op_type == OP_SYSWRITE) {
1773 IV offset;
1774 if (DO_UTF8(bufsv)) {
1775 /* length and offset are in chars */
1776 blen = sv_len_utf8(bufsv);
1777 }
bbce6d69 1778 if (MARK < SP) {
a0d0e21e 1779 offset = SvIVx(*++MARK);
bbce6d69 1780 if (offset < 0) {
1781 if (-offset > blen)
cea2e8a9 1782 DIE(aTHX_ "Offset outside string");
bbce6d69 1783 offset += blen;
fb73857a 1784 } else if (offset >= blen && blen > 0)
cea2e8a9 1785 DIE(aTHX_ "Offset outside string");
bbce6d69 1786 } else
a0d0e21e
LW		 1787 offset = 0;
1788 if (length > blen - offset)
1789 length = blen - offset;
7d59b7e4 1790 if (DO_UTF8(bufsv)) {
c8d31a35 1791 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1792 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1793 }
1794 else {
1795 buffer = buffer+offset;
1796 }
a7092146 1797#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1798 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1799 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1800 buffer, length, 0);
a7092146
GS		 1801 }
1802 else
1803#endif
1804 {
94e4c244 1805 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1806 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1807 buffer, length);
a7092146 1808 }
a0d0e21e
LW		 1809 }
1810#ifdef HAS_SOCKET
1811 else if (SP > MARK) {
1812 char *sockbuf;
1813 STRLEN mlen;
1814 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1815 /* length is really flags */
8c99d73e
GS		 1816 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1817 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1818 }
1819 else
7d59b7e4 1820 /* length is really flags */
8c99d73e 1821 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1822#else
1823 else
cea2e8a9 1824 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1825#endif
8c99d73e 1826 if (retval < 0)
a0d0e21e
LW		 1827 goto say_undef;
1828 SP = ORIGMARK;
8c99d73e
GS		 1829#if Size_t_size > IVSIZE
1830 PUSHn(retval);
1831#else
1832 PUSHi(retval);
1833#endif
a0d0e21e
LW		 1834 RETURN;
1835
1836 say_undef:
1837 SP = ORIGMARK;
1838 RETPUSHUNDEF;
1839}
1840
1841PP(pp_recv)
1842{
cea2e8a9 1843 return pp_sysread();
a0d0e21e
LW		 1844}
1845
1846PP(pp_eof)
1847{
39644a26 1848 dSP;
a0d0e21e 1849 GV *gv;
4592e6ca 1850 MAGIC *mg;
a0d0e21e 1851
32da55ab 1852 if (MAXARG == 0) {
146174a9
CB		 1853 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1854 IO *io;
1855 gv = PL_last_in_gv = PL_argvgv;
1856 io = GvIO(gv);
1857 if (io && !IoIFP(io)) {
1858 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1859 IoLINES(io) = 0;
1860 IoFLAGS(io) &= ~IOf_START;
1861 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1862 sv_setpvn(GvSV(gv), "-", 1);
1863 SvSETMAGIC(GvSV(gv));
1864 }
1865 else if (!nextargv(gv))
1866 RETPUSHYES;
1867 }
1868 }
1869 else
1870 gv = PL_last_in_gv; /* eof */
1871 }
a0d0e21e 1872 else
146174a9 1873 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1874
1875 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1876 PUSHMARK(SP);
1877 XPUSHs(SvTIED_obj((SV*)gv, mg));
1878 PUTBACK;
1879 ENTER;
864dbfa3 1880 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1881 LEAVE;
1882 SPAGAIN;
1883 RETURN;
1884 }
1885
54310121 1886 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1887 RETURN;
1888}
1889
1890PP(pp_tell)
1891{
39644a26 1892 dSP; dTARGET;
301e8125 1893 GV *gv;
4592e6ca 1894 MAGIC *mg;
a0d0e21e 1895
32da55ab 1896 if (MAXARG == 0)
3280af22 1897 gv = PL_last_in_gv;
a0d0e21e 1898 else
3280af22 1899 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1900
1901 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1902 PUSHMARK(SP);
1903 XPUSHs(SvTIED_obj((SV*)gv, mg));
1904 PUTBACK;
1905 ENTER;
864dbfa3 1906 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1907 LEAVE;
1908 SPAGAIN;
1909 RETURN;
1910 }
1911
146174a9
CB		 1912#if LSEEKSIZE > IVSIZE
1913 PUSHn( do_tell(gv) );
1914#else
a0d0e21e 1915 PUSHi( do_tell(gv) );
146174a9 1916#endif
a0d0e21e
LW		 1917 RETURN;
1918}
1919
1920PP(pp_seek)
1921{
cea2e8a9 1922 return pp_sysseek();
137443ea 1923}
1924
1925PP(pp_sysseek)
1926{
39644a26 1927 dSP;
a0d0e21e
LW		 1928 GV *gv;
1929 int whence = POPi;
146174a9
CB		 1930#if LSEEKSIZE > IVSIZE
1931 Off_t offset = (Off_t)SvNVx(POPs);
1932#else
d9b3e12d 1933 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1934#endif
4592e6ca 1935 MAGIC *mg;
a0d0e21e 1936
3280af22 1937 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1938
1939 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1940 PUSHMARK(SP);
1941 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1942#if LSEEKSIZE > IVSIZE
1943 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1944#else
b448e4fe 1945 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1946#endif
b448e4fe 1947 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1948 PUTBACK;
1949 ENTER;
864dbfa3 1950 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1951 LEAVE;
1952 SPAGAIN;
1953 RETURN;
1954 }
1955
533c011a 1956 if (PL_op->op_type == OP_SEEK)
8903cb82 1957 PUSHs(boolSV(do_seek(gv, offset, whence)));
1958 else {
b448e4fe
JH		 1959 Off_t sought = do_sysseek(gv, offset, whence);
1960 if (sought < 0)
146174a9
CB		 1961 PUSHs(&PL_sv_undef);
1962 else {
b448e4fe 1963 SV* sv = sought ?
146174a9 1964#if LSEEKSIZE > IVSIZE
b448e4fe 1965 newSVnv((NV)sought)
146174a9 1966#else
b448e4fe 1967 newSViv(sought)
146174a9
CB		 1968#endif
1969 : newSVpvn(zero_but_true, ZBTLEN);
1970 PUSHs(sv_2mortal(sv));
1971 }
8903cb82 1972 }
a0d0e21e
LW		 1973 RETURN;
1974}
1975
1976PP(pp_truncate)
1977{
39644a26 1978 dSP;
8c99d73e
GS		 1979 /* There seems to be no consensus on the length type of truncate()
1980 * and ftruncate(), both off_t and size_t have supporters. In
1981 * general one would think that when using large files, off_t is
1982 * at least as wide as size_t, so using an off_t should be okay. */
1983 /* XXX Configure probe for the length type of *truncate() needed XXX */
1984 Off_t len;
a0d0e21e
LW		 1985 int result = 1;
1986 GV *tmpgv;
2d8e6c8d 1987 STRLEN n_a;
a0d0e21e 1988
8c99d73e
GS		 1989#if Size_t_size > IVSIZE
1990 len = (Off_t)POPn;
1991#else
1992 len = (Off_t)POPi;
1993#endif
1994 /* Checking for length < 0 is problematic as the type might or
301e8125 1995 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 1996 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1997 SETERRNO(0,0);
5d94fbed 1998#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1999 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 2000 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 2001 do_ftruncate:
1e422769 2002 TAINT_PROPER("truncate");
cb50131a
CB		 2003 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
2004 result = 0;
2005 else {
2006 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 2007#ifdef HAS_TRUNCATE
cb50131a 2008 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 2009#else
cb50131a 2010 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 2011#endif
cb50131a
CB		 2012 result = 0;
2013 }
a0d0e21e
LW		 2014 }
2015 else {
cbdc8872 2016 SV *sv = POPs;
1e422769 2017 char *name;
2d8e6c8d 2018 STRLEN n_a;
1e422769 2019
cbdc8872 2020 if (SvTYPE(sv) == SVt_PVGV) {
2021 tmpgv = (GV*)sv; /* *main::FRED for example */
2022 goto do_ftruncate;
2023 }
2024 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2025 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2026 goto do_ftruncate;
2027 }
1e422769 2028
2d8e6c8d 2029 name = SvPV(sv, n_a);
1e422769 2030 TAINT_PROPER("truncate");
cbdc8872 2031#ifdef HAS_TRUNCATE
1e422769 2032 if (truncate(name, len) < 0)
a0d0e21e 2033 result = 0;
cbdc8872 2034#else
2035 {
2036 int tmpfd;
6ad3d225 2037 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 2038 result = 0;
cbdc8872 2039 else {
2040 if (my_chsize(tmpfd, len) < 0)
2041 result = 0;
6ad3d225 2042 PerlLIO_close(tmpfd);
cbdc8872 2043 }
a0d0e21e 2044 }
a0d0e21e 2045#endif
cbdc8872 2046 }
a0d0e21e
LW		 2047
2048 if (result)
2049 RETPUSHYES;
2050 if (!errno)
748a9306 2051 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 2052 RETPUSHUNDEF;
2053#else
cea2e8a9 2054 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2055#endif
2056}
2057
2058PP(pp_fcntl)
2059{
cea2e8a9 2060 return pp_ioctl();
a0d0e21e
LW		 2061}
2062
2063PP(pp_ioctl)
2064{
39644a26 2065 dSP; dTARGET;
748a9306 2066 SV *argsv = POPs;
a0d0e21e 2067 unsigned int func = U_I(POPn);
533c011a 2068 int optype = PL_op->op_type;
a0d0e21e 2069 char *s;
324aa91a 2070 IV retval;
a0d0e21e 2071 GV *gv = (GV*)POPs;
c289d2f7 2072 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2073
748a9306 2074 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2075 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2076 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2077 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 2078 RETPUSHUNDEF;
2079 }
2080
748a9306 2081 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2082 STRLEN len;
324aa91a 2083 STRLEN need;
748a9306 2084 s = SvPV_force(argsv, len);
324aa91a
HF		 2085 need = IOCPARM_LEN(func);
2086 if (len < need) {
2087 s = Sv_Grow(argsv, need + 1);
2088 SvCUR_set(argsv, need);
a0d0e21e
LW		 2089 }
2090
748a9306 2091 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2092 }
2093 else {
748a9306 2094 retval = SvIV(argsv);
c529f79d 2095 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2096 }
2097
2098 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2099
2100 if (optype == OP_IOCTL)
2101#ifdef HAS_IOCTL
76e3520e 2102 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2103#else
cea2e8a9 2104 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2105#endif
2106 else
55497cff 2107#ifdef HAS_FCNTL
2108#if defined(OS2) && defined(__EMX__)
760ac839 2109 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2110#else
760ac839 2111 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2112#endif
55497cff 2113#else
cea2e8a9 2114 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 2115#endif
2116
748a9306
LW		 2117 if (SvPOK(argsv)) {
2118 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2119 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2120 PL_op_name[optype]);
748a9306
LW		 2121 s[SvCUR(argsv)] = 0; /* put our null back */
2122 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2123 }
2124
2125 if (retval == -1)
2126 RETPUSHUNDEF;
2127 if (retval != 0) {
2128 PUSHi(retval);
2129 }
2130 else {
8903cb82 2131 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2132 }
2133 RETURN;
2134}
2135
2136PP(pp_flock)
2137{
39644a26 2138 dSP; dTARGET;
a0d0e21e
LW		 2139 I32 value;
2140 int argtype;
2141 GV *gv;
bc37a18f 2142 IO *io = NULL;
760ac839 2143 PerlIO *fp;
16d20bd9 2144
ff68c719 2145#ifdef FLOCK
a0d0e21e 2146 argtype = POPi;
32da55ab 2147 if (MAXARG == 0)
3280af22 2148 gv = PL_last_in_gv;
a0d0e21e
LW		 2149 else
2150 gv = (GV*)POPs;
bc37a18f
RG		 2151 if (gv && (io = GvIO(gv)))
2152 fp = IoIFP(io);
2153 else {
a0d0e21e 2154 fp = Nullfp;
bc37a18f
RG		 2155 io = NULL;
2156 }
a0d0e21e 2157 if (fp) {
68dc0745 2158 (void)PerlIO_flush(fp);
76e3520e 2159 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2160 }
cb50131a 2161 else {
bc37a18f
RG		 2162 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2163 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2164 value = 0;
cb50131a 2165 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2166 }
a0d0e21e
LW		 2167 PUSHi(value);
2168 RETURN;
2169#else
cea2e8a9 2170 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2171#endif
2172}
2173
2174/* Sockets. */
2175
2176PP(pp_socket)
2177{
39644a26 2178 dSP;
a0d0e21e
LW		 2179#ifdef HAS_SOCKET
2180 GV *gv;
2181 register IO *io;
2182 int protocol = POPi;
2183 int type = POPi;
2184 int domain = POPi;
2185 int fd;
2186
2187 gv = (GV*)POPs;
c289d2f7 2188 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2189
c289d2f7
JH		 2190 if (!gv || !io) {
2191 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2192 report_evil_fh(gv, io, PL_op->op_type);
2193 if (IoIFP(io))
2194 do_close(gv, FALSE);
748a9306 2195 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2196 RETPUSHUNDEF;
2197 }
2198
57171420
BS		 2199 if (IoIFP(io))
2200 do_close(gv, FALSE);
2201
a0d0e21e 2202 TAINT_PROPER("socket");
6ad3d225 2203 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2204 if (fd < 0)
2205 RETPUSHUNDEF;
760ac839
LW		 2206 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2207 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2208 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2209 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2210 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2211 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2212 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2213 RETPUSHUNDEF;
2214 }
8d2a6795
GS		 2215#if defined(HAS_FCNTL) && defined(F_SETFD)
2216 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2217#endif
a0d0e21e 2218
d5ff79b3
OF		 2219#ifdef EPOC
2220 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2221#endif
2222
a0d0e21e
LW		 2223 RETPUSHYES;
2224#else
cea2e8a9 2225 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2226#endif
2227}
2228
2229PP(pp_sockpair)
2230{
39644a26 2231 dSP;
a0d0e21e
LW		 2232#ifdef HAS_SOCKETPAIR
2233 GV *gv1;
2234 GV *gv2;
2235 register IO *io1;
2236 register IO *io2;
2237 int protocol = POPi;
2238 int type = POPi;
2239 int domain = POPi;
2240 int fd[2];
2241
2242 gv2 = (GV*)POPs;
2243 gv1 = (GV*)POPs;
c289d2f7
JH		 2244 io1 = gv1 ? GvIOn(gv1) : NULL;
2245 io2 = gv2 ? GvIOn(gv2) : NULL;
2246 if (!gv1 || !gv2 || !io1 || !io2) {
2247 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2248 if (!gv1 || !io1)
2249 report_evil_fh(gv1, io1, PL_op->op_type);
2250 if (!gv2 || !io2)
2251 report_evil_fh(gv1, io2, PL_op->op_type);
2252 }
2253 if (IoIFP(io1))
2254 do_close(gv1, FALSE);
2255 if (IoIFP(io2))
2256 do_close(gv2, FALSE);
a0d0e21e 2257 RETPUSHUNDEF;
c289d2f7 2258 }
a0d0e21e 2259
dc0d0a5f
JH		 2260 if (IoIFP(io1))
2261 do_close(gv1, FALSE);
2262 if (IoIFP(io2))
2263 do_close(gv2, FALSE);
57171420 2264
a0d0e21e 2265 TAINT_PROPER("socketpair");
6ad3d225 2266 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2267 RETPUSHUNDEF;
760ac839
LW		 2268 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2269 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2270 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2271 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2272 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2273 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2274 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2275 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2276 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2277 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2278 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2279 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2280 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2281 RETPUSHUNDEF;
2282 }
8d2a6795
GS		 2283#if defined(HAS_FCNTL) && defined(F_SETFD)
2284 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2285 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2286#endif
a0d0e21e
LW		 2287
2288 RETPUSHYES;
2289#else
cea2e8a9 2290 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2291#endif
2292}
2293
2294PP(pp_bind)
2295{
39644a26 2296 dSP;
a0d0e21e 2297#ifdef HAS_SOCKET
eec2d3df
GS		 2298#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2299 extern GETPRIVMODE();
2300 extern GETUSERMODE();
2301#endif
748a9306 2302 SV *addrsv = POPs;
a0d0e21e
LW		 2303 char *addr;
2304 GV *gv = (GV*)POPs;
2305 register IO *io = GvIOn(gv);
2306 STRLEN len;
eec2d3df
GS		 2307 int bind_ok = 0;
2308#ifdef MPE
2309 int mpeprivmode = 0;
2310#endif
a0d0e21e
LW		 2311
2312 if (!io || !IoIFP(io))
2313 goto nuts;
2314
748a9306 2315 addr = SvPV(addrsv, len);
a0d0e21e 2316 TAINT_PROPER("bind");
eec2d3df
GS		 2317#ifdef MPE /* Deal with MPE bind() peculiarities */
2318 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2319 /* The address *MUST* stupidly be zero. */
2320 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2321 /* PRIV mode is required to bind() to ports < 1024. */
2322 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2323 ((struct sockaddr_in *)addr)->sin_port > 0) {
2324 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2325 mpeprivmode = 1;
2326 }
2327 }
2328#endif /* MPE */
2329 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2330 (struct sockaddr *)addr, len) >= 0)
2331 bind_ok = 1;
2332
2333#ifdef MPE /* Switch back to USER mode */
2334 if (mpeprivmode)
2335 GETUSERMODE();
2336#endif /* MPE */
2337
2338 if (bind_ok)
a0d0e21e
LW		 2339 RETPUSHYES;
2340 else
2341 RETPUSHUNDEF;
2342
2343nuts:
599cee73 2344 if (ckWARN(WARN_CLOSED))
bc37a18f 2345 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2346 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2347 RETPUSHUNDEF;
2348#else
cea2e8a9 2349 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2350#endif
2351}
2352
2353PP(pp_connect)
2354{
39644a26 2355 dSP;
a0d0e21e 2356#ifdef HAS_SOCKET
748a9306 2357 SV *addrsv = POPs;
a0d0e21e
LW		 2358 char *addr;
2359 GV *gv = (GV*)POPs;
2360 register IO *io = GvIOn(gv);
2361 STRLEN len;
2362
2363 if (!io || !IoIFP(io))
2364 goto nuts;
2365
748a9306 2366 addr = SvPV(addrsv, len);
a0d0e21e 2367 TAINT_PROPER("connect");
6ad3d225 2368 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2369 RETPUSHYES;
2370 else
2371 RETPUSHUNDEF;
2372
2373nuts:
599cee73 2374 if (ckWARN(WARN_CLOSED))
bc37a18f 2375 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2376 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2377 RETPUSHUNDEF;
2378#else
cea2e8a9 2379 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2380#endif
2381}
2382
2383PP(pp_listen)
2384{
39644a26 2385 dSP;
a0d0e21e
LW		 2386#ifdef HAS_SOCKET
2387 int backlog = POPi;
2388 GV *gv = (GV*)POPs;
c289d2f7 2389 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2390
c289d2f7 2391 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2392 goto nuts;
2393
6ad3d225 2394 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2395 RETPUSHYES;
2396 else
2397 RETPUSHUNDEF;
2398
2399nuts:
599cee73 2400 if (ckWARN(WARN_CLOSED))
bc37a18f 2401 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2402 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2403 RETPUSHUNDEF;
2404#else
cea2e8a9 2405 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2406#endif
2407}
2408
2409PP(pp_accept)
2410{
39644a26 2411 dSP; dTARGET;
a0d0e21e
LW		 2412#ifdef HAS_SOCKET
2413 GV *ngv;
2414 GV *ggv;
2415 register IO *nstio;
2416 register IO *gstio;
4633a7c4 2417 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2418 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2419 int fd;
2420
2421 ggv = (GV*)POPs;
2422 ngv = (GV*)POPs;
2423
2424 if (!ngv)
2425 goto badexit;
2426 if (!ggv)
2427 goto nuts;
2428
2429 gstio = GvIO(ggv);
2430 if (!gstio || !IoIFP(gstio))
2431 goto nuts;
2432
2433 nstio = GvIOn(ngv);
2434 if (IoIFP(nstio))
2435 do_close(ngv, FALSE);
2436
6ad3d225 2437 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2438 if (fd < 0)
2439 goto badexit;
760ac839
LW		 2440 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2441 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
50952442 2442 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2443 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2444 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2445 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2446 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2447 goto badexit;
2448 }
8d2a6795
GS		 2449#if defined(HAS_FCNTL) && defined(F_SETFD)
2450 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2451#endif
a0d0e21e 2452
ed79a026 2453#ifdef EPOC
a9f1f6b0
OF		 2454 len = sizeof saddr; /* EPOC somehow truncates info */
2455 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026
OF		 2456#endif
2457
748a9306 2458 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2459 RETURN;
2460
2461nuts:
599cee73 2462 if (ckWARN(WARN_CLOSED))
bc37a18f 2463 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2464 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2465
2466badexit:
2467 RETPUSHUNDEF;
2468
2469#else
cea2e8a9 2470 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2471#endif
2472}
2473
2474PP(pp_shutdown)
2475{
39644a26 2476 dSP; dTARGET;
a0d0e21e
LW		 2477#ifdef HAS_SOCKET
2478 int how = POPi;
2479 GV *gv = (GV*)POPs;
2480 register IO *io = GvIOn(gv);
2481
2482 if (!io || !IoIFP(io))
2483 goto nuts;
2484
6ad3d225 2485 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2486 RETURN;
2487
2488nuts:
599cee73 2489 if (ckWARN(WARN_CLOSED))
bc37a18f 2490 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2491 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2492 RETPUSHUNDEF;
2493#else
cea2e8a9 2494 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2495#endif
2496}
2497
2498PP(pp_gsockopt)
2499{
2500#ifdef HAS_SOCKET
cea2e8a9 2501 return pp_ssockopt();
a0d0e21e 2502#else
cea2e8a9 2503 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2504#endif
2505}
2506
2507PP(pp_ssockopt)
2508{
39644a26 2509 dSP;
a0d0e21e 2510#ifdef HAS_SOCKET
533c011a 2511 int optype = PL_op->op_type;
a0d0e21e
LW		 2512 SV *sv;
2513 int fd;
2514 unsigned int optname;
2515 unsigned int lvl;
2516 GV *gv;
2517 register IO *io;
1e422769 2518 Sock_size_t len;
a0d0e21e
LW		 2519
2520 if (optype == OP_GSOCKOPT)
2521 sv = sv_2mortal(NEWSV(22, 257));
2522 else
2523 sv = POPs;
2524 optname = (unsigned int) POPi;
2525 lvl = (unsigned int) POPi;
2526
2527 gv = (GV*)POPs;
2528 io = GvIOn(gv);
2529 if (!io || !IoIFP(io))
2530 goto nuts;
2531
760ac839 2532 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2533 switch (optype) {
2534 case OP_GSOCKOPT:
748a9306 2535 SvGROW(sv, 257);
a0d0e21e 2536 (void)SvPOK_only(sv);
748a9306
LW		 2537 SvCUR_set(sv,256);
2538 *SvEND(sv) ='\0';
1e422769 2539 len = SvCUR(sv);
6ad3d225 2540 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2541 goto nuts2;
1e422769 2542 SvCUR_set(sv, len);
748a9306 2543 *SvEND(sv) ='\0';
a0d0e21e
LW		 2544 PUSHs(sv);
2545 break;
2546 case OP_SSOCKOPT: {
1e422769 2547 char *buf;
2548 int aint;
2549 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2550 STRLEN l;
2551 buf = SvPV(sv, l);
2552 len = l;
1e422769 2553 }
56ee1660 2554 else {
a0d0e21e
LW		 2555 aint = (int)SvIV(sv);
2556 buf = (char*)&aint;
2557 len = sizeof(int);
2558 }
6ad3d225 2559 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2560 goto nuts2;
3280af22 2561 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2562 }
2563 break;
2564 }
2565 RETURN;
2566
2567nuts:
599cee73 2568 if (ckWARN(WARN_CLOSED))
bc37a18f 2569 report_evil_fh(gv, io, optype);
748a9306 2570 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2571nuts2:
2572 RETPUSHUNDEF;
2573
2574#else
cea2e8a9 2575 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2576#endif
2577}
2578
2579PP(pp_getsockname)
2580{
2581#ifdef HAS_SOCKET
cea2e8a9 2582 return pp_getpeername();
a0d0e21e 2583#else
cea2e8a9 2584 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2585#endif
2586}
2587
2588PP(pp_getpeername)
2589{
39644a26 2590 dSP;
a0d0e21e 2591#ifdef HAS_SOCKET
533c011a 2592 int optype = PL_op->op_type;
a0d0e21e
LW		 2593 SV *sv;
2594 int fd;
2595 GV *gv = (GV*)POPs;
2596 register IO *io = GvIOn(gv);
1e422769 2597 Sock_size_t len;
a0d0e21e
LW		 2598
2599 if (!io || !IoIFP(io))
2600 goto nuts;
2601
2602 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2603 (void)SvPOK_only(sv);
1e422769 2604 len = 256;
2605 SvCUR_set(sv, len);
748a9306 2606 *SvEND(sv) ='\0';
760ac839 2607 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2608 switch (optype) {
2609 case OP_GETSOCKNAME:
6ad3d225 2610 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2611 goto nuts2;
2612 break;
2613 case OP_GETPEERNAME:
6ad3d225 2614 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2615 goto nuts2;
490ab354
JH		 2616#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2617 {
2618 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";
2619 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2620 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2621 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2622 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2623 goto nuts2;
490ab354
JH		 2624 }
2625 }
2626#endif
a0d0e21e
LW		 2627 break;
2628 }
13826f2c
CS		 2629#ifdef BOGUS_GETNAME_RETURN
2630 /* Interactive Unix, getpeername() and getsockname()
2631 does not return valid namelen */
1e422769 2632 if (len == BOGUS_GETNAME_RETURN)
2633 len = sizeof(struct sockaddr);
13826f2c 2634#endif
1e422769 2635 SvCUR_set(sv, len);
748a9306 2636 *SvEND(sv) ='\0';
a0d0e21e
LW		 2637 PUSHs(sv);
2638 RETURN;
2639
2640nuts:
599cee73 2641 if (ckWARN(WARN_CLOSED))
bc37a18f 2642 report_evil_fh(gv, io, optype);
748a9306 2643 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2644nuts2:
2645 RETPUSHUNDEF;
2646
2647#else
cea2e8a9 2648 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2649#endif
2650}
2651
2652/* Stat calls. */
2653
2654PP(pp_lstat)
2655{
cea2e8a9 2656 return pp_stat();
a0d0e21e
LW		 2657}
2658
2659PP(pp_stat)
2660{
39644a26 2661 dSP;
2dd78f96 2662 GV *gv;
54310121 2663 I32 gimme;
a0d0e21e 2664 I32 max = 13;
2d8e6c8d 2665 STRLEN n_a;
a0d0e21e 2666
533c011a 2667 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2668 gv = cGVOP_gv;
8a4e5b40
DD		 2669 if (PL_op->op_type == OP_LSTAT) {
2670 if (PL_laststype != OP_LSTAT)
2671 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2672 if (ckWARN(WARN_IO) && gv != PL_defgv)
2673 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2674 "lstat() on filehandle %s", GvENAME(gv));
8a4e5b40
DD		 2675 /* Perl_my_lstat (-l) croak's on filehandle, why warn here? */
2676 }
2677
748a9306 2678 do_fstat:
2dd78f96 2679 if (gv != PL_defgv) {
3280af22 2680 PL_laststype = OP_STAT;
2dd78f96 2681 PL_statgv = gv;
3280af22 2682 sv_setpv(PL_statname, "");
2dd78f96
JH		 2683 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2684 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2685 }
9ddeeac9 2686 if (PL_laststatval < 0) {
2dd78f96
JH		 2687 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2688 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2689 max = 0;
9ddeeac9 2690 }
a0d0e21e
LW		 2691 }
2692 else {
748a9306
LW		 2693 SV* sv = POPs;
2694 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2695 gv = (GV*)sv;
748a9306
LW		 2696 goto do_fstat;
2697 }
2698 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2699 gv = (GV*)SvRV(sv);
748a9306
LW		 2700 goto do_fstat;
2701 }
2d8e6c8d 2702 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2703 PL_statgv = Nullgv;
a0d0e21e 2704#ifdef HAS_LSTAT
533c011a
NIS		 2705 PL_laststype = PL_op->op_type;
2706 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2707 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2708 else
2709#endif
2d8e6c8d 2710 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2711 if (PL_laststatval < 0) {
2d8e6c8d 2712 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2713 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2714 max = 0;
2715 }
2716 }
2717
54310121 2718 gimme = GIMME_V;
2719 if (gimme != G_ARRAY) {
2720 if (gimme != G_VOID)
2721 XPUSHs(boolSV(max));
2722 RETURN;
a0d0e21e
LW		 2723 }
2724 if (max) {
36477c24 2725 EXTEND(SP, max);
2726 EXTEND_MORTAL(max);
1ff81528
PL		 2727 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2728 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2729 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2730 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2731#if Uid_t_size > IVSIZE
2732 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2733#else
23dcd6c8 2734# if Uid_t_sign <= 0
1ff81528 2735 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2736# else
2737 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2738# endif
146174a9 2739#endif
301e8125 2740#if Gid_t_size > IVSIZE
146174a9
CB		 2741 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2742#else
23dcd6c8 2743# if Gid_t_sign <= 0
1ff81528 2744 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2745# else
2746 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2747# endif
146174a9 2748#endif
cbdc8872 2749#ifdef USE_STAT_RDEV
1ff81528 2750 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2751#else
79cb57f6 2752 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2753#endif
146174a9
CB		 2754#if Off_t_size > IVSIZE
2755 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2756#else
1ff81528 2757 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2758#endif
cbdc8872 2759#ifdef BIG_TIME
172ae379
JH		 2760 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2761 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2762 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2763#else
1ff81528
PL		 2764 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2765 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2766 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2767#endif
a0d0e21e 2768#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2769 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2770 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2771#else
79cb57f6
GS		 2772 PUSHs(sv_2mortal(newSVpvn("", 0)));
2773 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2774#endif
2775 }
2776 RETURN;
2777}
2778
2779PP(pp_ftrread)
2780{
5ff3f7a4 2781 I32 result;
39644a26 2782 dSP;
5ff3f7a4 2783#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2784 STRLEN n_a;
5ff3f7a4 2785 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2786 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2787 if (result == 0)
2788 RETPUSHYES;
2789 if (result < 0)
2790 RETPUSHUNDEF;
2791 RETPUSHNO;
22865c03
GS		 2792 }
2793 else
cea2e8a9 2794 result = my_stat();
5ff3f7a4 2795#else
cea2e8a9 2796 result = my_stat();
5ff3f7a4 2797#endif
22865c03 2798 SPAGAIN;
a0d0e21e
LW		 2799 if (result < 0)
2800 RETPUSHUNDEF;
3280af22 2801 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2802 RETPUSHYES;
2803 RETPUSHNO;
2804}
2805
2806PP(pp_ftrwrite)
2807{
5ff3f7a4 2808 I32 result;
39644a26 2809 dSP;
5ff3f7a4 2810#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2811 STRLEN n_a;
5ff3f7a4 2812 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2813 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2814 if (result == 0)
2815 RETPUSHYES;
2816 if (result < 0)
2817 RETPUSHUNDEF;
2818 RETPUSHNO;
22865c03
GS		 2819 }
2820 else
cea2e8a9 2821 result = my_stat();
5ff3f7a4 2822#else
cea2e8a9 2823 result = my_stat();
5ff3f7a4 2824#endif
22865c03 2825 SPAGAIN;
a0d0e21e
LW		 2826 if (result < 0)
2827 RETPUSHUNDEF;
3280af22 2828 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2829 RETPUSHYES;
2830 RETPUSHNO;
2831}
2832
2833PP(pp_ftrexec)
2834{
5ff3f7a4 2835 I32 result;
39644a26 2836 dSP;
5ff3f7a4 2837#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2838 STRLEN n_a;
5ff3f7a4 2839 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2840 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2841 if (result == 0)
2842 RETPUSHYES;
2843 if (result < 0)
2844 RETPUSHUNDEF;
2845 RETPUSHNO;
22865c03
GS		 2846 }
2847 else
cea2e8a9 2848 result = my_stat();
5ff3f7a4 2849#else
cea2e8a9 2850 result = my_stat();
5ff3f7a4 2851#endif
22865c03 2852 SPAGAIN;
a0d0e21e
LW		 2853 if (result < 0)
2854 RETPUSHUNDEF;
3280af22 2855 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2856 RETPUSHYES;
2857 RETPUSHNO;
2858}
2859
2860PP(pp_fteread)
2861{
5ff3f7a4 2862 I32 result;
39644a26 2863 dSP;
5ff3f7a4 2864#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2865 STRLEN n_a;
5ff3f7a4 2866 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2867 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2868 if (result == 0)
2869 RETPUSHYES;
2870 if (result < 0)
2871 RETPUSHUNDEF;
2872 RETPUSHNO;
22865c03
GS		 2873 }
2874 else
cea2e8a9 2875 result = my_stat();
5ff3f7a4 2876#else
cea2e8a9 2877 result = my_stat();
5ff3f7a4 2878#endif
22865c03 2879 SPAGAIN;
a0d0e21e
LW		 2880 if (result < 0)
2881 RETPUSHUNDEF;
3280af22 2882 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2883 RETPUSHYES;
2884 RETPUSHNO;
2885}
2886
2887PP(pp_ftewrite)
2888{
5ff3f7a4 2889 I32 result;
39644a26 2890 dSP;
5ff3f7a4 2891#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2892 STRLEN n_a;
5ff3f7a4 2893 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2894 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2895 if (result == 0)
2896 RETPUSHYES;
2897 if (result < 0)
2898 RETPUSHUNDEF;
2899 RETPUSHNO;
22865c03
GS		 2900 }
2901 else
cea2e8a9 2902 result = my_stat();
5ff3f7a4 2903#else
cea2e8a9 2904 result = my_stat();
5ff3f7a4 2905#endif
22865c03 2906 SPAGAIN;
a0d0e21e
LW		 2907 if (result < 0)
2908 RETPUSHUNDEF;
3280af22 2909 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2910 RETPUSHYES;
2911 RETPUSHNO;
2912}
2913
2914PP(pp_fteexec)
2915{
5ff3f7a4 2916 I32 result;
39644a26 2917 dSP;
5ff3f7a4 2918#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2919 STRLEN n_a;
5ff3f7a4 2920 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2921 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2922 if (result == 0)
2923 RETPUSHYES;
2924 if (result < 0)
2925 RETPUSHUNDEF;
2926 RETPUSHNO;
22865c03
GS		 2927 }
2928 else
cea2e8a9 2929 result = my_stat();
5ff3f7a4 2930#else
cea2e8a9 2931 result = my_stat();
5ff3f7a4 2932#endif
22865c03 2933 SPAGAIN;
a0d0e21e
LW		 2934 if (result < 0)
2935 RETPUSHUNDEF;
3280af22 2936 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2937 RETPUSHYES;
2938 RETPUSHNO;
2939}
2940
2941PP(pp_ftis)
2942{
cea2e8a9 2943 I32 result = my_stat();
39644a26 2944 dSP;
a0d0e21e
LW		 2945 if (result < 0)
2946 RETPUSHUNDEF;
2947 RETPUSHYES;
2948}
2949
2950PP(pp_fteowned)
2951{
cea2e8a9 2952 return pp_ftrowned();
a0d0e21e
LW		 2953}
2954
2955PP(pp_ftrowned)
2956{
cea2e8a9 2957 I32 result = my_stat();
39644a26 2958 dSP;
a0d0e21e
LW		 2959 if (result < 0)
2960 RETPUSHUNDEF;
146174a9
CB		 2961 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2962 PL_euid : PL_uid) )
a0d0e21e
LW		 2963 RETPUSHYES;
2964 RETPUSHNO;
2965}
2966
2967PP(pp_ftzero)
2968{
cea2e8a9 2969 I32 result = my_stat();
39644a26 2970 dSP;
a0d0e21e
LW		 2971 if (result < 0)
2972 RETPUSHUNDEF;
146174a9 2973 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2974 RETPUSHYES;
2975 RETPUSHNO;
2976}
2977
2978PP(pp_ftsize)
2979{
cea2e8a9 2980 I32 result = my_stat();
39644a26 2981 dSP; dTARGET;
a0d0e21e
LW		 2982 if (result < 0)
2983 RETPUSHUNDEF;
146174a9
CB		 2984#if Off_t_size > IVSIZE
2985 PUSHn(PL_statcache.st_size);
2986#else
3280af22 2987 PUSHi(PL_statcache.st_size);
146174a9 2988#endif
a0d0e21e
LW		 2989 RETURN;
2990}
2991
2992PP(pp_ftmtime)
2993{
cea2e8a9 2994 I32 result = my_stat();
39644a26 2995 dSP; dTARGET;
a0d0e21e
LW		 2996 if (result < 0)
2997 RETPUSHUNDEF;
c6419e06 2998 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2999 RETURN;
3000}
3001
3002PP(pp_ftatime)
3003{
cea2e8a9 3004 I32 result = my_stat();
39644a26 3005 dSP; dTARGET;
a0d0e21e
LW		 3006 if (result < 0)
3007 RETPUSHUNDEF;
c6419e06 3008 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 3009 RETURN;
3010}
3011
3012PP(pp_ftctime)
3013{
cea2e8a9 3014 I32 result = my_stat();
39644a26 3015 dSP; dTARGET;
a0d0e21e
LW		 3016 if (result < 0)
3017 RETPUSHUNDEF;
c6419e06 3018 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 3019 RETURN;
3020}
3021
3022PP(pp_ftsock)
3023{
cea2e8a9 3024 I32 result = my_stat();
39644a26 3025 dSP;
a0d0e21e
LW		 3026 if (result < 0)
3027 RETPUSHUNDEF;
3280af22 3028 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3029 RETPUSHYES;
3030 RETPUSHNO;
3031}
3032
3033PP(pp_ftchr)
3034{
cea2e8a9 3035 I32 result = my_stat();
39644a26 3036 dSP;
a0d0e21e
LW		 3037 if (result < 0)
3038 RETPUSHUNDEF;
3280af22 3039 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3040 RETPUSHYES;
3041 RETPUSHNO;
3042}
3043
3044PP(pp_ftblk)
3045{
cea2e8a9 3046 I32 result = my_stat();
39644a26 3047 dSP;
a0d0e21e
LW		 3048 if (result < 0)
3049 RETPUSHUNDEF;
3280af22 3050 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3051 RETPUSHYES;
3052 RETPUSHNO;
3053}
3054
3055PP(pp_ftfile)
3056{
cea2e8a9 3057 I32 result = my_stat();
39644a26 3058 dSP;
a0d0e21e
LW		 3059 if (result < 0)
3060 RETPUSHUNDEF;
3280af22 3061 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3062 RETPUSHYES;
3063 RETPUSHNO;
3064}
3065
3066PP(pp_ftdir)
3067{
cea2e8a9 3068 I32 result = my_stat();
39644a26 3069 dSP;
a0d0e21e
LW		 3070 if (result < 0)
3071 RETPUSHUNDEF;
3280af22 3072 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3073 RETPUSHYES;
3074 RETPUSHNO;
3075}
3076
3077PP(pp_ftpipe)
3078{
cea2e8a9 3079 I32 result = my_stat();
39644a26 3080 dSP;
a0d0e21e
LW		 3081 if (result < 0)
3082 RETPUSHUNDEF;
3280af22 3083 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3084 RETPUSHYES;
3085 RETPUSHNO;
3086}
3087
3088PP(pp_ftlink)
3089{
cea2e8a9 3090 I32 result = my_lstat();
39644a26 3091 dSP;
a0d0e21e
LW		 3092 if (result < 0)
3093 RETPUSHUNDEF;
3280af22 3094 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3095 RETPUSHYES;
3096 RETPUSHNO;
3097}
3098
3099PP(pp_ftsuid)
3100{
39644a26 3101 dSP;
a0d0e21e 3102#ifdef S_ISUID
cea2e8a9 3103 I32 result = my_stat();
a0d0e21e
LW		 3104 SPAGAIN;
3105 if (result < 0)
3106 RETPUSHUNDEF;
3280af22 3107 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3108 RETPUSHYES;
3109#endif
3110 RETPUSHNO;
3111}
3112
3113PP(pp_ftsgid)
3114{
39644a26 3115 dSP;
a0d0e21e 3116#ifdef S_ISGID
cea2e8a9 3117 I32 result = my_stat();
a0d0e21e
LW		 3118 SPAGAIN;
3119 if (result < 0)
3120 RETPUSHUNDEF;
3280af22 3121 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3122 RETPUSHYES;
3123#endif
3124 RETPUSHNO;
3125}
3126
3127PP(pp_ftsvtx)
3128{
39644a26 3129 dSP;
a0d0e21e 3130#ifdef S_ISVTX
cea2e8a9 3131 I32 result = my_stat();
a0d0e21e
LW		 3132 SPAGAIN;
3133 if (result < 0)
3134 RETPUSHUNDEF;
3280af22 3135 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3136 RETPUSHYES;
3137#endif
3138 RETPUSHNO;
3139}
3140
3141PP(pp_fttty)
3142{
39644a26 3143 dSP;
a0d0e21e
LW		 3144 int fd;
3145 GV *gv;
fb73857a 3146 char *tmps = Nullch;
2d8e6c8d 3147 STRLEN n_a;
fb73857a 3148
533c011a 3149 if (PL_op->op_flags & OPf_REF)
146174a9 3150 gv = cGVOP_gv;
fb73857a 3151 else if (isGV(TOPs))
3152 gv = (GV*)POPs;
3153 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3154 gv = (GV*)SvRV(POPs);
a0d0e21e 3155 else
2d8e6c8d 3156 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3157
a0d0e21e 3158 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3159 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3160 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3161 fd = atoi(tmps);
3162 else
3163 RETPUSHUNDEF;
6ad3d225 3164 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3165 RETPUSHYES;
3166 RETPUSHNO;
3167}
3168
16d20bd9
AD		 3169#if defined(atarist) /* this will work with atariST. Configure will
3170 make guesses for other systems. */
3171# define FILE_base(f) ((f)->_base)
3172# define FILE_ptr(f) ((f)->_ptr)
3173# define FILE_cnt(f) ((f)->_cnt)
3174# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3175#endif
3176
3177PP(pp_fttext)
3178{
39644a26 3179 dSP;
a0d0e21e
LW		 3180 I32 i;
3181 I32 len;
3182 I32 odd = 0;
3183 STDCHAR tbuf[512];
3184 register STDCHAR *s;
3185 register IO *io;
5f05dabc 3186 register SV *sv;
3187 GV *gv;
2d8e6c8d 3188 STRLEN n_a;
146174a9 3189 PerlIO *fp;
a0d0e21e 3190
533c011a 3191 if (PL_op->op_flags & OPf_REF)
146174a9 3192 gv = cGVOP_gv;
5f05dabc 3193 else if (isGV(TOPs))
3194 gv = (GV*)POPs;
3195 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3196 gv = (GV*)SvRV(POPs);
3197 else
3198 gv = Nullgv;
3199
3200 if (gv) {
a0d0e21e 3201 EXTEND(SP, 1);
3280af22
NIS		 3202 if (gv == PL_defgv) {
3203 if (PL_statgv)
3204 io = GvIO(PL_statgv);
a0d0e21e 3205 else {
3280af22 3206 sv = PL_statname;
a0d0e21e
LW		 3207 goto really_filename;
3208 }
3209 }
3210 else {
3280af22
NIS		 3211 PL_statgv = gv;
3212 PL_laststatval = -1;
3213 sv_setpv(PL_statname, "");
3214 io = GvIO(PL_statgv);
a0d0e21e
LW		 3215 }
3216 if (io && IoIFP(io)) {
5f05dabc 3217 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3218 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3219 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3220 if (PL_laststatval < 0)
5f05dabc 3221 RETPUSHUNDEF;
9cbac4c7 3222 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3223 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3224 RETPUSHNO;
3225 else
3226 RETPUSHYES;
9cbac4c7 3227 }
a20bf0c3 3228 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3229 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3230 if (i != EOF)
760ac839 3231 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3232 }
a20bf0c3 3233 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3234 RETPUSHYES;
a20bf0c3
JH		 3235 len = PerlIO_get_bufsiz(IoIFP(io));
3236 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3237 /* sfio can have large buffers - limit to 512 */
3238 if (len > 512)
3239 len = 512;
a0d0e21e
LW		 3240 }
3241 else {
2dd78f96 3242 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3243 gv = cGVOP_gv;
2dd78f96 3244 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3245 }
748a9306 3246 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3247 RETPUSHUNDEF;
3248 }
3249 }
3250 else {
3251 sv = POPs;
5f05dabc 3252 really_filename:
3280af22
NIS		 3253 PL_statgv = Nullgv;
3254 PL_laststatval = -1;
2d8e6c8d 3255 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3256 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3257 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3258 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3259 RETPUSHUNDEF;
3260 }
146174a9
CB		 3261 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3262 if (PL_laststatval < 0) {
3263 (void)PerlIO_close(fp);
5f05dabc 3264 RETPUSHUNDEF;
146174a9 3265 }
60382766 3266 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3267 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3268 (void)PerlIO_close(fp);
a0d0e21e 3269 if (len <= 0) {
533c011a 3270 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3271 RETPUSHNO; /* special case NFS directories */
3272 RETPUSHYES; /* null file is anything */
3273 }
3274 s = tbuf;
3275 }
3276
3277 /* now scan s to look for textiness */
4633a7c4 3278 /* XXX ASCII dependent code */
a0d0e21e 3279
146174a9
CB		 3280#if defined(DOSISH) || defined(USEMYBINMODE)
3281 /* ignore trailing ^Z on short files */
3282 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3283 --len;
3284#endif
3285
a0d0e21e
LW		 3286 for (i = 0; i < len; i++, s++) {
3287 if (!*s) { /* null never allowed in text */
3288 odd += len;
3289 break;
3290 }
9d116dd7 3291#ifdef EBCDIC
301e8125 3292 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3293 odd++;
3294#else
146174a9
CB		 3295 else if (*s & 128) {
3296#ifdef USE_LOCALE
b3f66c68
GS		 3297 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3298 continue;
3299#endif
3300 /* utf8 characters don't count as odd */
fd400ab9 3301 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3302 int ulen = UTF8SKIP(s);
3303 if (ulen < len - i) {
3304 int j;
3305 for (j = 1; j < ulen; j++) {
fd400ab9 3306 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3307 goto not_utf8;
3308 }
3309 --ulen; /* loop does extra increment */
3310 s += ulen;
3311 i += ulen;
3312 continue;
3313 }
3314 }
3315 not_utf8:
3316 odd++;
146174a9 3317 }
a0d0e21e
LW		 3318 else if (*s < 32 &&
3319 *s != '\n' && *s != '\r' && *s != '\b' &&
3320 *s != '\t' && *s != '\f' && *s != 27)
3321 odd++;
9d116dd7 3322#endif
a0d0e21e
LW		 3323 }
3324
533c011a 3325 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3326 RETPUSHNO;
3327 else
3328 RETPUSHYES;
3329}
3330
3331PP(pp_ftbinary)
3332{
cea2e8a9 3333 return pp_fttext();
a0d0e21e
LW		 3334}
3335
3336/* File calls. */
3337
3338PP(pp_chdir)
3339{
39644a26 3340 dSP; dTARGET;
a0d0e21e
LW		 3341 char *tmps;
3342 SV **svp;
2d8e6c8d 3343 STRLEN n_a;
a0d0e21e
LW		 3344
3345 if (MAXARG < 1)
3346 tmps = Nullch;
3347 else
2d8e6c8d 3348 tmps = POPpx;
a0d0e21e 3349 if (!tmps || !*tmps) {
3280af22 3350 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3351 if (svp)
2d8e6c8d 3352 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3353 }
3354 if (!tmps || !*tmps) {
3280af22 3355 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3356 if (svp)
2d8e6c8d 3357 tmps = SvPV(*svp, n_a);
a0d0e21e 3358 }
491527d0
GS		 3359#ifdef VMS
3360 if (!tmps || !*tmps) {
6b88bc9c 3361 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3362 if (svp)
2d8e6c8d 3363 tmps = SvPV(*svp, n_a);
491527d0
GS		 3364 }
3365#endif
a0d0e21e 3366 TAINT_PROPER("chdir");
6ad3d225 3367 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3368#ifdef VMS
3369 /* Clear the DEFAULT element of ENV so we'll get the new value
3370 * in the future. */
6b88bc9c 3371 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3372#endif
a0d0e21e
LW		 3373 RETURN;
3374}
3375
3376PP(pp_chown)
3377{
39644a26 3378 dSP; dMARK; dTARGET;
a0d0e21e
LW		 3379 I32 value;
3380#ifdef HAS_CHOWN
533c011a 3381 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3382 SP = MARK;
3383 PUSHi(value);
3384 RETURN;
3385#else
cea2e8a9 3386 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3387#endif
3388}
3389
3390PP(pp_chroot)
3391{
39644a26 3392 dSP; dTARGET;
a0d0e21e
LW		 3393 char *tmps;
3394#ifdef HAS_CHROOT
2d8e6c8d
GS		 3395 STRLEN n_a;
3396 tmps = POPpx;
a0d0e21e
LW		 3397 TAINT_PROPER("chroot");
3398 PUSHi( chroot(tmps) >= 0 );
3399 RETURN;
3400#else
cea2e8a9 3401 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3402#endif
3403}
3404
3405PP(pp_unlink)
3406{
39644a26 3407 dSP; dMARK; dTARGET;
a0d0e21e 3408 I32 value;
533c011a 3409 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3410 SP = MARK;
3411 PUSHi(value);
3412 RETURN;
3413}
3414
3415PP(pp_chmod)
3416{
39644a26 3417 dSP; dMARK; dTARGET;
a0d0e21e 3418 I32 value;
533c011a 3419 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3420 SP = MARK;
3421 PUSHi(value);
3422 RETURN;
3423}
3424
3425PP(pp_utime)
3426{
39644a26 3427 dSP; dMARK; dTARGET;
a0d0e21e 3428 I32 value;
533c011a 3429 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3430 SP = MARK;
3431 PUSHi(value);
3432 RETURN;
3433}
3434
3435PP(pp_rename)
3436{
39644a26 3437 dSP; dTARGET;
a0d0e21e 3438 int anum;
2d8e6c8d 3439 STRLEN n_a;
a0d0e21e 3440
2d8e6c8d
GS		 3441 char *tmps2 = POPpx;
3442 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3443 TAINT_PROPER("rename");
3444#ifdef HAS_RENAME
baed7233 3445 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3446#else
6b88bc9c 3447 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3448 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3449 anum = 1;
3450 else {
3654eb6c 3451 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3452 (void)UNLINK(tmps2);
3453 if (!(anum = link(tmps, tmps2)))
3454 anum = UNLINK(tmps);
3455 }
a0d0e21e
LW		 3456 }
3457#endif
3458 SETi( anum >= 0 );
3459 RETURN;
3460}
3461
3462PP(pp_link)
3463{
39644a26 3464 dSP; dTARGET;
a0d0e21e 3465#ifdef HAS_LINK
2d8e6c8d
GS		 3466 STRLEN n_a;
3467 char *tmps2 = POPpx;
3468 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3469 TAINT_PROPER("link");
146174a9 3470 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3471#else
cea2e8a9 3472 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3473#endif
3474 RETURN;
3475}
3476
3477PP(pp_symlink)
3478{
39644a26 3479 dSP; dTARGET;
a0d0e21e 3480#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3481 STRLEN n_a;
3482 char *tmps2 = POPpx;
3483 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3484 TAINT_PROPER("symlink");
3485 SETi( symlink(tmps, tmps2) >= 0 );
3486 RETURN;
3487#else
cea2e8a9 3488 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3489#endif
3490}
3491
3492PP(pp_readlink)
3493{
39644a26 3494 dSP; dTARGET;
a0d0e21e
LW		 3495#ifdef HAS_SYMLINK
3496 char *tmps;
46fc3d4c 3497 char buf[MAXPATHLEN];
a0d0e21e 3498 int len;
2d8e6c8d 3499 STRLEN n_a;
46fc3d4c 3500
fb73857a 3501#ifndef INCOMPLETE_TAINTS
3502 TAINT;
3503#endif
2d8e6c8d 3504 tmps = POPpx;
a0d0e21e
LW		 3505 len = readlink(tmps, buf, sizeof buf);
3506 EXTEND(SP, 1);
3507 if (len < 0)
3508 RETPUSHUNDEF;
3509 PUSHp(buf, len);
3510 RETURN;
3511#else
3512 EXTEND(SP, 1);
3513 RETSETUNDEF; /* just pretend it's a normal file */
3514#endif
3515}
3516
3517#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3518STATIC int
cea2e8a9 3519S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3520{
1e422769 3521 char *save_filename = filename;
3522 char *cmdline;
3523 char *s;
760ac839 3524 PerlIO *myfp;
1e422769 3525 int anum = 1;
a0d0e21e 3526
1e422769 3527 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3528 strcpy(cmdline, cmd);
3529 strcat(cmdline, " ");
3530 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3531 *s++ = '\\';
3532 *s++ = *filename++;
3533 }
3534 strcpy(s, " 2>&1");
6ad3d225 3535 myfp = PerlProc_popen(cmdline, "r");
1e422769 3536 Safefree(cmdline);
3537
a0d0e21e 3538 if (myfp) {
1e422769 3539 SV *tmpsv = sv_newmortal();
6b88bc9c 3540 /* Need to save/restore 'PL_rs' ?? */
760ac839 3541 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3542 (void)PerlProc_pclose(myfp);
a0d0e21e 3543 if (s != Nullch) {
1e422769 3544 int e;
3545 for (e = 1;
a0d0e21e 3546#ifdef HAS_SYS_ERRLIST
1e422769 3547 e <= sys_nerr
3548#endif
3549 ; e++)
3550 {
3551 /* you don't see this */
3552 char *errmsg =
3553#ifdef HAS_SYS_ERRLIST
3554 sys_errlist[e]
a0d0e21e 3555#else
1e422769 3556 strerror(e)
a0d0e21e 3557#endif
1e422769 3558 ;
3559 if (!errmsg)
3560 break;
3561 if (instr(s, errmsg)) {
3562 SETERRNO(e,0);
3563 return 0;
3564 }
a0d0e21e 3565 }
748a9306 3566 SETERRNO(0,0);
a0d0e21e