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Continue fixing the io warnings. This also
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
cb50131a 3 * Copyright (c) 1991-2000, Larry Wall
a0d0e21e
LW		 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10/*
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
15 */
16
17#include "EXTERN.h"
864dbfa3 18#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 19#include "perl.h"
20
f1066039
JH		 21#ifdef I_SHADOW
22/* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 24 * The API is from SysV.
25 *
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
28 *
29 * --jhi */
30# ifdef __hpux__
c529f79d
CB		 31/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
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
76c32331 38/* XXX If this causes problems, set i_unistd=undef in the hint file. */
39#ifdef I_UNISTD
40# include <unistd.h>
41#endif
42
8ac85365
NIS		 43#ifdef HAS_SYSCALL
44#ifdef __cplusplus
45extern "C" int syscall(unsigned long,...);
46#endif
47#endif
48
76c32331 49#ifdef I_SYS_WAIT
50# include <sys/wait.h>
51#endif
52
53#ifdef I_SYS_RESOURCE
54# include <sys/resource.h>
16d20bd9 55#endif
a0d0e21e
LW		 56
57#if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
58# include <sys/socket.h>
29209bc5 59# if defined(USE_SOCKS) && defined(I_SOCKS)
86959918
JH		 60# include <socks.h>
61# endif
3fd537d4
JH		 62# ifdef I_NETDB
63# include <netdb.h>
64# endif
a0d0e21e
LW		 65# ifndef ENOTSOCK
66# ifdef I_NET_ERRNO
67# include <net/errno.h>
68# endif
69# endif
70#endif
71
72#ifdef HAS_SELECT
73#ifdef I_SYS_SELECT
a0d0e21e
LW		 74#include <sys/select.h>
75#endif
76#endif
a0d0e21e 77
dc45a647
MB		 78/* XXX Configure test needed.
79 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 80 applications, see "extern int errno in perl.h". Creating such
81 a test requires taking into account the differences between
82 compiling multithreaded and singlethreaded ($ccflags et al).
83 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 84*/
cb50131a 85#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 86extern int h_errno;
87#endif
88
89#ifdef HAS_PASSWD
90# ifdef I_PWD
91# include <pwd.h>
92# else
20ce7b12
GS		 93 struct passwd *getpwnam (char *);
94 struct passwd *getpwuid (Uid_t);
a0d0e21e 95# endif
28e8609d 96# ifdef HAS_GETPWENT
20ce7b12 97 struct passwd *getpwent (void);
28e8609d 98# endif
a0d0e21e
LW		 99#endif
100
101#ifdef HAS_GROUP
102# ifdef I_GRP
103# include <grp.h>
104# else
20ce7b12
GS		 105 struct group *getgrnam (char *);
106 struct group *getgrgid (Gid_t);
a0d0e21e 107# endif
28e8609d 108# ifdef HAS_GETGRENT
20ce7b12 109 struct group *getgrent (void);
28e8609d 110# endif
a0d0e21e
LW		 111#endif
112
113#ifdef I_UTIME
3730b96e 114# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 115# include <sys/utime.h>
116# else
117# include <utime.h>
118# endif
a0d0e21e 119#endif
a0d0e21e 120
54310121 121/* Put this after #includes because fork and vfork prototypes may conflict. */
122#ifndef HAS_VFORK
123# define vfork fork
124#endif
125
cbdc8872 126#ifdef HAS_CHSIZE
cd52b7b2 127# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
128# undef my_chsize
129# endif
6ad3d225 130# define my_chsize PerlLIO_chsize
cbdc8872 131#endif
132
ff68c719 133#ifdef HAS_FLOCK
134# define FLOCK flock
135#else /* no flock() */
136
36477c24 137 /* fcntl.h might not have been included, even if it exists, because
138 the current Configure only sets I_FCNTL if it's needed to pick up
139 the *_OK constants. Make sure it has been included before testing
140 the fcntl() locking constants. */
141# if defined(HAS_FCNTL) && !defined(I_FCNTL)
142# include <fcntl.h>
143# endif
144
ff68c719 145# if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
146# define FLOCK fcntl_emulate_flock
147# define FCNTL_EMULATE_FLOCK
148# else /* no flock() or fcntl(F_SETLK,...) */
149# ifdef HAS_LOCKF
150# define FLOCK lockf_emulate_flock
151# define LOCKF_EMULATE_FLOCK
152# endif /* lockf */
153# endif /* no flock() or fcntl(F_SETLK,...) */
154
155# ifdef FLOCK
20ce7b12 156 static int FLOCK (int, int);
ff68c719 157
158 /*
159 * These are the flock() constants. Since this sytems doesn't have
160 * flock(), the values of the constants are probably not available.
161 */
162# ifndef LOCK_SH
163# define LOCK_SH 1
164# endif
165# ifndef LOCK_EX
166# define LOCK_EX 2
167# endif
168# ifndef LOCK_NB
169# define LOCK_NB 4
170# endif
171# ifndef LOCK_UN
172# define LOCK_UN 8
173# endif
174# endif /* emulating flock() */
175
176#endif /* no flock() */
55497cff 177
85ab1d1d
JH		 178#define ZBTLEN 10
179static char zero_but_true[ZBTLEN + 1] = "0 but true";
180
5ff3f7a4
GS		 181#if defined(I_SYS_ACCESS) && !defined(R_OK)
182# include <sys/access.h>
183#endif
184
c529f79d
CB		 185#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
186# define FD_CLOEXEC 1 /* NeXT needs this */
187#endif
188
5ff3f7a4
GS		 189#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
190#undef PERL_EFF_ACCESS_W_OK
191#undef PERL_EFF_ACCESS_X_OK
192
193/* F_OK unused: if stat() cannot find it... */
194
195#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 196 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 197# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
198# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
199# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
200#endif
201
202#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 203# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 204# include <sys/security.h>
205# endif
c955f117
JH		 206# ifdef ACC_SELF
207 /* HP SecureWare */
208# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
209# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
210# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
211# else
212 /* SCO */
213# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
214# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
215# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
216# endif
5ff3f7a4
GS		 217#endif
218
219#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 220 /* AIX */
5ff3f7a4
GS		 221# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
222# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
223# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
224#endif
225
327c3667
GS		 226#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
227 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
228 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 229/* The Hard Way. */
327c3667 230STATIC int
7f4774ae 231S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 232{
5ff3f7a4
GS		 233 Uid_t ruid = getuid();
234 Uid_t euid = geteuid();
235 Gid_t rgid = getgid();
236 Gid_t egid = getegid();
237 int res;
238
146174a9 239 LOCK_CRED_MUTEX;
5ff3f7a4 240#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 241 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 242#else
243#ifdef HAS_SETREUID
244 if (setreuid(euid, ruid))
245#else
246#ifdef HAS_SETRESUID
247 if (setresuid(euid, ruid, (Uid_t)-1))
248#endif
249#endif
cea2e8a9 250 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 251#endif
252
253#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 254 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 255#else
256#ifdef HAS_SETREGID
257 if (setregid(egid, rgid))
258#else
259#ifdef HAS_SETRESGID
260 if (setresgid(egid, rgid, (Gid_t)-1))
261#endif
262#endif
cea2e8a9 263 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 264#endif
265
266 res = access(path, mode);
267
268#ifdef HAS_SETREUID
269 if (setreuid(ruid, euid))
270#else
271#ifdef HAS_SETRESUID
272 if (setresuid(ruid, euid, (Uid_t)-1))
273#endif
274#endif
cea2e8a9 275 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 276
277#ifdef HAS_SETREGID
278 if (setregid(rgid, egid))
279#else
280#ifdef HAS_SETRESGID
281 if (setresgid(rgid, egid, (Gid_t)-1))
282#endif
283#endif
cea2e8a9 284 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 285 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 286
287 return res;
288}
289# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
290# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
291# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
292#endif
293
294#if !defined(PERL_EFF_ACCESS_R_OK)
327c3667 295STATIC int
7f4774ae 296S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 297{
cea2e8a9 298 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 299 /*NOTREACHED*/
300 return -1;
301}
302#endif
303
a0d0e21e
LW		 304PP(pp_backtick)
305{
4e35701f 306 djSP; dTARGET;
760ac839 307 PerlIO *fp;
2d8e6c8d
GS		 308 STRLEN n_a;
309 char *tmps = POPpx;
54310121 310 I32 gimme = GIMME_V;
16fe6d59 311 char *mode = "r";
54310121 312
a0d0e21e 313 TAINT_PROPER("``");
16fe6d59
GS		 314 if (PL_op->op_private & OPpOPEN_IN_RAW)
315 mode = "rb";
316 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
317 mode = "rt";
318 fp = PerlProc_popen(tmps, mode);
a0d0e21e 319 if (fp) {
54310121 320 if (gimme == G_VOID) {
96827780
MB		 321 char tmpbuf[256];
322 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 323 /*SUPPRESS 530*/
324 ;
325 }
326 else if (gimme == G_SCALAR) {
aa689395 327 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 328 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
329 /*SUPPRESS 530*/
330 ;
331 XPUSHs(TARG);
aa689395 332 SvTAINTED_on(TARG);
a0d0e21e
LW		 333 }
334 else {
335 SV *sv;
336
337 for (;;) {
8d6dde3e 338 sv = NEWSV(56, 79);
a0d0e21e
LW		 339 if (sv_gets(sv, fp, 0) == Nullch) {
340 SvREFCNT_dec(sv);
341 break;
342 }
343 XPUSHs(sv_2mortal(sv));
344 if (SvLEN(sv) - SvCUR(sv) > 20) {
345 SvLEN_set(sv, SvCUR(sv)+1);
346 Renew(SvPVX(sv), SvLEN(sv), char);
347 }
aa689395 348 SvTAINTED_on(sv);
a0d0e21e
LW		 349 }
350 }
6ad3d225 351 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 352 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 353 }
354 else {
f86702cc 355 STATUS_NATIVE_SET(-1);
54310121 356 if (gimme == G_SCALAR)
a0d0e21e
LW		 357 RETPUSHUNDEF;
358 }
359
360 RETURN;
361}
362
363PP(pp_glob)
364{
365 OP *result;
f5284f61
IZ		 366 tryAMAGICunTARGET(iter, -1);
367
71686f12
GS		 368 /* Note that we only ever get here if File::Glob fails to load
369 * without at the same time croaking, for some reason, or if
370 * perl was built with PERL_EXTERNAL_GLOB */
371
a0d0e21e 372 ENTER;
a0d0e21e 373
c90c0ff4 374#ifndef VMS
3280af22 375 if (PL_tainting) {
7bac28a0 376 /*
377 * The external globbing program may use things we can't control,
378 * so for security reasons we must assume the worst.
379 */
380 TAINT;
22c35a8c 381 taint_proper(PL_no_security, "glob");
7bac28a0 382 }
c90c0ff4 383#endif /* !VMS */
7bac28a0 384
3280af22
NIS		 385 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
386 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 387
3280af22 388 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 389 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 390#ifndef DOSISH
391#ifndef CSH
6b88bc9c 392 *SvPVX(PL_rs) = '\n';
a0d0e21e 393#endif /* !CSH */
55497cff 394#endif /* !DOSISH */
c07a80fd 395
a0d0e21e
LW		 396 result = do_readline();
397 LEAVE;
398 return result;
399}
400
15e52e56 401#if 0 /* XXX never used! */
a0d0e21e
LW		 402PP(pp_indread)
403{
2d8e6c8d
GS		 404 STRLEN n_a;
405 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
a0d0e21e
LW		 406 return do_readline();
407}
15e52e56 408#endif
a0d0e21e
LW		 409
410PP(pp_rcatline)
411{
146174a9 412 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 413 return do_readline();
414}
415
416PP(pp_warn)
417{
4e35701f 418 djSP; dMARK;
06bf62c7 419 SV *tmpsv;
a0d0e21e 420 char *tmps;
06bf62c7 421 STRLEN len;
a0d0e21e
LW		 422 if (SP - MARK != 1) {
423 dTARGET;
3280af22 424 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 425 tmpsv = TARG;
a0d0e21e
LW		 426 SP = MARK + 1;
427 }
428 else {
06bf62c7 429 tmpsv = TOPs;
a0d0e21e 430 }
06bf62c7
GS		 431 tmps = SvPV(tmpsv, len);
432 if (!tmps || !len) {
4e6ea2c3
GS		 433 SV *error = ERRSV;
434 (void)SvUPGRADE(error, SVt_PV);
435 if (SvPOK(error) && SvCUR(error))
436 sv_catpv(error, "\t...caught");
06bf62c7
GS		 437 tmpsv = error;
438 tmps = SvPV(tmpsv, len);
a0d0e21e 439 }
06bf62c7
GS		 440 if (!tmps || !len)
441 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
442
cb50131a 443 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 444 RETSETYES;
445}
446
447PP(pp_die)
448{
4e35701f 449 djSP; dMARK;
a0d0e21e 450 char *tmps;
06bf62c7
GS		 451 SV *tmpsv;
452 STRLEN len;
453 bool multiarg = 0;
a0d0e21e
LW		 454 if (SP - MARK != 1) {
455 dTARGET;
3280af22 456 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 457 tmpsv = TARG;
458 tmps = SvPV(tmpsv, len);
459 multiarg = 1;
a0d0e21e
LW		 460 SP = MARK + 1;
461 }
462 else {
4e6ea2c3 463 tmpsv = TOPs;
06bf62c7 464 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 465 }
06bf62c7 466 if (!tmps || !len) {
4e6ea2c3
GS		 467 SV *error = ERRSV;
468 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 469 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
470 if (!multiarg)
4e6ea2c3 471 SvSetSV(error,tmpsv);
06bf62c7 472 else if (sv_isobject(error)) {
05423cc9
GS		 473 HV *stash = SvSTASH(SvRV(error));
474 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
475 if (gv) {
146174a9 476 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 477 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 478 EXTEND(SP, 3);
479 PUSHMARK(SP);
480 PUSHs(error);
481 PUSHs(file);
482 PUSHs(line);
483 PUTBACK;
864dbfa3
GS		 484 call_sv((SV*)GvCV(gv),
485 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 486 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 487 }
488 }
cea2e8a9 489 DIE(aTHX_ Nullch);
4e6ea2c3
GS		 490 }
491 else {
492 if (SvPOK(error) && SvCUR(error))
493 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 494 tmpsv = error;
495 tmps = SvPV(tmpsv, len);
4e6ea2c3 496 }
a0d0e21e 497 }
06bf62c7
GS		 498 if (!tmps || !len)
499 tmpsv = sv_2mortal(newSVpvn("Died", 4));
500
cb50131a 501 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 502}
503
504/* I/O. */
505
506PP(pp_open)
507{
4e35701f 508 djSP; dTARGET;
a0d0e21e
LW		 509 GV *gv;
510 SV *sv;
6170680b
IZ		 511 SV *name;
512 I32 have_name = 0;
a0d0e21e
LW		 513 char *tmps;
514 STRLEN len;
4592e6ca 515 MAGIC *mg;
a0d0e21e 516
6170680b
IZ		 517 if (MAXARG > 2) {
518 name = POPs;
519 have_name = 1;
520 }
a0d0e21e
LW		 521 if (MAXARG > 1)
522 sv = POPs;
5f05dabc 523 if (!isGV(TOPs))
cea2e8a9 524 DIE(aTHX_ PL_no_usym, "filehandle");
5f05dabc 525 if (MAXARG <= 1)
526 sv = GvSV(TOPs);
a0d0e21e 527 gv = (GV*)POPs;
5f05dabc 528 if (!isGV(gv))
cea2e8a9 529 DIE(aTHX_ PL_no_usym, "filehandle");
36477c24 530 if (GvIOp(gv))
531 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 532
155aba94 533 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
4592e6ca
NIS		 534 PUSHMARK(SP);
535 XPUSHs(SvTIED_obj((SV*)gv, mg));
536 XPUSHs(sv);
6170680b
IZ		 537 if (have_name)
538 XPUSHs(name);
4592e6ca
NIS		 539 PUTBACK;
540 ENTER;
864dbfa3 541 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 542 LEAVE;
543 SPAGAIN;
544 RETURN;
545 }
546
a0d0e21e 547 tmps = SvPV(sv, len);
6170680b 548 if (do_open9(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, name, have_name))
3280af22
NIS		 549 PUSHi( (I32)PL_forkprocess );
550 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 551 PUSHi(0);
552 else
553 RETPUSHUNDEF;
554 RETURN;
555}
556
557PP(pp_close)
558{
4e35701f 559 djSP;
a0d0e21e 560 GV *gv;
1d603a67 561 MAGIC *mg;
a0d0e21e
LW		 562
563 if (MAXARG == 0)
3280af22 564 gv = PL_defoutgv;
a0d0e21e
LW		 565 else
566 gv = (GV*)POPs;
1d603a67 567
155aba94 568 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67 569 PUSHMARK(SP);
33c27489 570 XPUSHs(SvTIED_obj((SV*)gv, mg));
1d603a67
GB		 571 PUTBACK;
572 ENTER;
864dbfa3 573 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 574 LEAVE;
575 SPAGAIN;
576 RETURN;
577 }
a0d0e21e 578 EXTEND(SP, 1);
54310121 579 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 580 RETURN;
581}
582
583PP(pp_pipe_op)
584{
4e35701f 585 djSP;
a0d0e21e
LW		 586#ifdef HAS_PIPE
587 GV *rgv;
588 GV *wgv;
589 register IO *rstio;
590 register IO *wstio;
591 int fd[2];
592
593 wgv = (GV*)POPs;
594 rgv = (GV*)POPs;
595
596 if (!rgv || !wgv)
597 goto badexit;
598
4633a7c4 599 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 600 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 601 rstio = GvIOn(rgv);
602 wstio = GvIOn(wgv);
603
604 if (IoIFP(rstio))
605 do_close(rgv, FALSE);
606 if (IoIFP(wstio))
607 do_close(wgv, FALSE);
608
6ad3d225 609 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 610 goto badexit;
611
760ac839
LW		 612 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
613 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
a0d0e21e
LW		 614 IoIFP(wstio) = IoOFP(wstio);
615 IoTYPE(rstio) = '<';
616 IoTYPE(wstio) = '>';
617
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 620 else PerlLIO_close(fd[0]);
760ac839 621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 622 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 623 goto badexit;
624 }
4771b018
GS		 625#if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
628#endif
a0d0e21e
LW		 629 RETPUSHYES;
630
631badexit:
632 RETPUSHUNDEF;
633#else
cea2e8a9 634 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 635#endif
636}
637
638PP(pp_fileno)
639{
4e35701f 640 djSP; dTARGET;
a0d0e21e
LW		 641 GV *gv;
642 IO *io;
760ac839 643 PerlIO *fp;
4592e6ca
NIS		 644 MAGIC *mg;
645
a0d0e21e
LW		 646 if (MAXARG < 1)
647 RETPUSHUNDEF;
648 gv = (GV*)POPs;
4592e6ca
NIS		 649
650 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
651 PUSHMARK(SP);
652 XPUSHs(SvTIED_obj((SV*)gv, mg));
653 PUTBACK;
654 ENTER;
864dbfa3 655 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 656 LEAVE;
657 SPAGAIN;
658 RETURN;
659 }
660
a0d0e21e
LW		 661 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
662 RETPUSHUNDEF;
760ac839 663 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 664 RETURN;
665}
666
667PP(pp_umask)
668{
4e35701f 669 djSP; dTARGET;
761237fe 670 Mode_t anum;
a0d0e21e
LW		 671
672#ifdef HAS_UMASK
673 if (MAXARG < 1) {
6ad3d225
GS		 674 anum = PerlLIO_umask(0);
675 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 676 }
677 else
6ad3d225 678 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 679 TAINT_PROPER("umask");
680 XPUSHi(anum);
681#else
eec2d3df
GS		 682 /* Only DIE if trying to restrict permissions on `user' (self).
683 * Otherwise it's harmless and more useful to just return undef
684 * since 'group' and 'other' concepts probably don't exist here. */
685 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 686 DIE(aTHX_ "umask not implemented");
6b88bc9c 687 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 688#endif
689 RETURN;
690}
691
692PP(pp_binmode)
693{
4e35701f 694 djSP;
a0d0e21e
LW		 695 GV *gv;
696 IO *io;
760ac839 697 PerlIO *fp;
4592e6ca 698 MAGIC *mg;
16fe6d59 699 SV *discp = Nullsv;
a0d0e21e
LW		 700
701 if (MAXARG < 1)
702 RETPUSHUNDEF;
16fe6d59
GS		 703 if (MAXARG > 1)
704 discp = POPs;
a0d0e21e 705
4592e6ca
NIS		 706 gv = (GV*)POPs;
707
708 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
709 PUSHMARK(SP);
710 XPUSHs(SvTIED_obj((SV*)gv, mg));
16fe6d59
GS		 711 if (discp)
712 XPUSHs(discp);
4592e6ca
NIS		 713 PUTBACK;
714 ENTER;
864dbfa3 715 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 716 LEAVE;
717 SPAGAIN;
718 RETURN;
719 }
a0d0e21e
LW		 720
721 EXTEND(SP, 1);
722 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
55497cff 723 RETPUSHUNDEF;
a0d0e21e 724
16fe6d59 725 if (do_binmode(fp,IoTYPE(io),mode_from_discipline(discp)))
a0d0e21e
LW		 726 RETPUSHYES;
727 else
728 RETPUSHUNDEF;
a0d0e21e
LW		 729}
730
731PP(pp_tie)
732{
4e35701f 733 djSP;
e336de0d 734 dMARK;
a0d0e21e
LW		 735 SV *varsv;
736 HV* stash;
737 GV *gv;
a0d0e21e 738 SV *sv;
3280af22 739 I32 markoff = MARK - PL_stack_base;
a0d0e21e 740 char *methname;
6b05c17a 741 int how = 'P';
e336de0d 742 U32 items;
2d8e6c8d 743 STRLEN n_a;
a0d0e21e 744
e336de0d 745 varsv = *++MARK;
6b05c17a
NIS		 746 switch(SvTYPE(varsv)) {
747 case SVt_PVHV:
748 methname = "TIEHASH";
749 break;
750 case SVt_PVAV:
751 methname = "TIEARRAY";
752 break;
753 case SVt_PVGV:
754 methname = "TIEHANDLE";
755 how = 'q';
756 break;
757 default:
758 methname = "TIESCALAR";
759 how = 'q';
760 break;
761 }
e336de0d
GS		 762 items = SP - MARK++;
763 if (sv_isobject(*MARK)) {
6b05c17a 764 ENTER;
e788e7d3 765 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 766 PUSHMARK(SP);
767 EXTEND(SP,items);
768 while (items--)
769 PUSHs(*MARK++);
770 PUTBACK;
864dbfa3 771 call_method(methname, G_SCALAR);
6b05c17a
NIS		 772 }
773 else {
864dbfa3 774 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 775 * perhaps to get different error message ?
776 */
e336de0d 777 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 778 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 779 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
2d8e6c8d 780 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 781 }
782 ENTER;
e788e7d3 783 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 784 PUSHMARK(SP);
785 EXTEND(SP,items);
786 while (items--)
787 PUSHs(*MARK++);
788 PUTBACK;
864dbfa3 789 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 790 }
a0d0e21e
LW		 791 SPAGAIN;
792
793 sv = TOPs;
d3acc0f7 794 POPSTACK;
a0d0e21e 795 if (sv_isobject(sv)) {
33c27489
GS		 796 sv_unmagic(varsv, how);
797 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 798 }
799 LEAVE;
3280af22 800 SP = PL_stack_base + markoff;
a0d0e21e
LW		 801 PUSHs(sv);
802 RETURN;
803}
804
805PP(pp_untie)
806{
4e35701f 807 djSP;
33c27489
GS		 808 SV *sv = POPs;
809 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
55497cff 810
599cee73 811 if (ckWARN(WARN_UNTIE)) {
cbdc8872 812 MAGIC * mg ;
155aba94 813 if ((mg = SvTIED_mg(sv, how))) {
b9c39e73 814 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
cf2093f6 815 Perl_warner(aTHX_ WARN_UNTIE,
146174a9 816 "untie attempted while %"UVuf" inner references still exist",
cf2093f6 817 (UV)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
cbdc8872 818 }
819 }
820
33c27489 821 sv_unmagic(sv, how);
55497cff 822 RETPUSHYES;
a0d0e21e
LW		 823}
824
c07a80fd 825PP(pp_tied)
826{
4e35701f 827 djSP;
33c27489
GS		 828 SV *sv = POPs;
829 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
830 MAGIC *mg;
c07a80fd 831
155aba94 832 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 833 SV *osv = SvTIED_obj(sv, mg);
834 if (osv == mg->mg_obj)
835 osv = sv_mortalcopy(osv);
836 PUSHs(osv);
837 RETURN;
c07a80fd 838 }
c07a80fd 839 RETPUSHUNDEF;
840}
841
a0d0e21e
LW		 842PP(pp_dbmopen)
843{
4e35701f 844 djSP;
a0d0e21e
LW		 845 HV *hv;
846 dPOPPOPssrl;
847 HV* stash;
848 GV *gv;
a0d0e21e
LW		 849 SV *sv;
850
851 hv = (HV*)POPs;
852
3280af22 853 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 854 sv_setpv(sv, "AnyDBM_File");
855 stash = gv_stashsv(sv, FALSE);
8ebc5c01 856 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 857 PUTBACK;
864dbfa3 858 require_pv("AnyDBM_File.pm");
a0d0e21e 859 SPAGAIN;
8ebc5c01 860 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 861 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 862 }
863
57d3b86d 864 ENTER;
924508f0 865 PUSHMARK(SP);
6b05c17a 866
924508f0 867 EXTEND(SP, 5);
a0d0e21e
LW		 868 PUSHs(sv);
869 PUSHs(left);
870 if (SvIV(right))
b448e4fe 871 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 872 else
b448e4fe 873 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 874 PUSHs(right);
57d3b86d 875 PUTBACK;
864dbfa3 876 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 877 SPAGAIN;
878
879 if (!sv_isobject(TOPs)) {
924508f0
GS		 880 SP--;
881 PUSHMARK(SP);
a0d0e21e
LW		 882 PUSHs(sv);
883 PUSHs(left);
b448e4fe 884 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 885 PUSHs(right);
a0d0e21e 886 PUTBACK;
864dbfa3 887 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 888 SPAGAIN;
889 }
890
6b05c17a
NIS		 891 if (sv_isobject(TOPs)) {
892 sv_unmagic((SV *) hv, 'P');
a0d0e21e 893 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 894 }
a0d0e21e
LW		 895 LEAVE;
896 RETURN;
897}
898
899PP(pp_dbmclose)
900{
cea2e8a9 901 return pp_untie();
a0d0e21e
LW		 902}
903
904PP(pp_sselect)
905{
4e35701f 906 djSP; dTARGET;
a0d0e21e
LW		 907#ifdef HAS_SELECT
908 register I32 i;
909 register I32 j;
910 register char *s;
911 register SV *sv;
65202027 912 NV value;
a0d0e21e
LW		 913 I32 maxlen = 0;
914 I32 nfound;
915 struct timeval timebuf;
916 struct timeval *tbuf = &timebuf;
917 I32 growsize;
918 char *fd_sets[4];
2d8e6c8d 919 STRLEN n_a;
a0d0e21e
LW		 920#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
921 I32 masksize;
922 I32 offset;
923 I32 k;
924
925# if BYTEORDER & 0xf0000
926# define ORDERBYTE (0x88888888 - BYTEORDER)
927# else
928# define ORDERBYTE (0x4444 - BYTEORDER)
929# endif
930
931#endif
932
933 SP -= 4;
934 for (i = 1; i <= 3; i++) {
935 if (!SvPOK(SP[i]))
936 continue;
937 j = SvCUR(SP[i]);
938 if (maxlen < j)
939 maxlen = j;
940 }
941
5ff3f7a4 942/* little endians can use vecs directly */
a0d0e21e 943#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 944# if SELECT_MIN_BITS > 1
f2da832e
JH		 945 /* If SELECT_MIN_BITS is greater than one we most probably will want
946 * to align the sizes with SELECT_MIN_BITS/8 because for example
947 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 948 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 949 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 950 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 951# else
4633a7c4 952 growsize = sizeof(fd_set);
5ff3f7a4
GS		 953# endif
954# else
955# ifdef NFDBITS
a0d0e21e 956
5ff3f7a4
GS		 957# ifndef NBBY
958# define NBBY 8
959# endif
a0d0e21e
LW		 960
961 masksize = NFDBITS / NBBY;
5ff3f7a4 962# else
a0d0e21e 963 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 964# endif
a0d0e21e
LW		 965 growsize = maxlen + (masksize - (maxlen % masksize));
966 Zero(&fd_sets[0], 4, char*);
967#endif
968
969 sv = SP[4];
970 if (SvOK(sv)) {
971 value = SvNV(sv);
972 if (value < 0.0)
973 value = 0.0;
974 timebuf.tv_sec = (long)value;
65202027 975 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 976 timebuf.tv_usec = (long)(value * 1000000.0);
977 }
978 else
979 tbuf = Null(struct timeval*);
980
981 for (i = 1; i <= 3; i++) {
982 sv = SP[i];
983 if (!SvOK(sv)) {
984 fd_sets[i] = 0;
985 continue;
986 }
987 else if (!SvPOK(sv))
2d8e6c8d 988 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 989 j = SvLEN(sv);
990 if (j < growsize) {
991 Sv_Grow(sv, growsize);
a0d0e21e 992 }
c07a80fd 993 j = SvCUR(sv);
994 s = SvPVX(sv) + j;
995 while (++j <= growsize) {
996 *s++ = '\0';
997 }
998
a0d0e21e
LW		 999#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1000 s = SvPVX(sv);
1001 New(403, fd_sets[i], growsize, char);
1002 for (offset = 0; offset < growsize; offset += masksize) {
1003 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1004 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1005 }
1006#else
1007 fd_sets[i] = SvPVX(sv);
1008#endif
1009 }
1010
6ad3d225 1011 nfound = PerlSock_select(
a0d0e21e
LW		 1012 maxlen * 8,
1013 (Select_fd_set_t) fd_sets[1],
1014 (Select_fd_set_t) fd_sets[2],
1015 (Select_fd_set_t) fd_sets[3],
1016 tbuf);
1017 for (i = 1; i <= 3; i++) {
1018 if (fd_sets[i]) {
1019 sv = SP[i];
1020#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1021 s = SvPVX(sv);
1022 for (offset = 0; offset < growsize; offset += masksize) {
1023 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1024 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1025 }
1026 Safefree(fd_sets[i]);
1027#endif
1028 SvSETMAGIC(sv);
1029 }
1030 }
1031
1032 PUSHi(nfound);
1033 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1034 value = (NV)(timebuf.tv_sec) +
1035 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1036 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1037 sv_setnv(sv, value);
1038 }
1039 RETURN;
1040#else
cea2e8a9 1041 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1042#endif
1043}
1044
4633a7c4 1045void
864dbfa3 1046Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1047{
11343788 1048 dTHR;
4633a7c4
LW		 1049 if (gv)
1050 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1051 if (PL_defoutgv)
1052 SvREFCNT_dec(PL_defoutgv);
1053 PL_defoutgv = gv;
4633a7c4
LW		 1054}
1055
a0d0e21e
LW		 1056PP(pp_select)
1057{
4e35701f 1058 djSP; dTARGET;
4633a7c4
LW		 1059 GV *newdefout, *egv;
1060 HV *hv;
1061
533c011a 1062 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1063
3280af22 1064 egv = GvEGV(PL_defoutgv);
4633a7c4 1065 if (!egv)
3280af22 1066 egv = PL_defoutgv;
4633a7c4
LW		 1067 hv = GvSTASH(egv);
1068 if (! hv)
3280af22 1069 XPUSHs(&PL_sv_undef);
4633a7c4 1070 else {
cbdc8872 1071 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1072 if (gvp && *gvp == egv) {
43693395 1073 gv_efullname4(TARG, PL_defoutgv, Nullch, FALSE);
f86702cc 1074 XPUSHTARG;
1075 }
1076 else {
1077 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1078 }
4633a7c4
LW		 1079 }
1080
1081 if (newdefout) {
ded8aa31
GS		 1082 if (!GvIO(newdefout))
1083 gv_IOadd(newdefout);
4633a7c4
LW		 1084 setdefout(newdefout);
1085 }
1086
a0d0e21e
LW		 1087 RETURN;
1088}
1089
1090PP(pp_getc)
1091{
4e35701f 1092 djSP; dTARGET;
a0d0e21e 1093 GV *gv;
2ae324a7 1094 MAGIC *mg;
a0d0e21e 1095
32da55ab 1096 if (MAXARG == 0)
3280af22 1097 gv = PL_stdingv;
a0d0e21e
LW		 1098 else
1099 gv = (GV*)POPs;
2ae324a7 1100
155aba94 1101 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1102 I32 gimme = GIMME_V;
2ae324a7 1103 PUSHMARK(SP);
33c27489 1104 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1105 PUTBACK;
1106 ENTER;
864dbfa3 1107 call_method("GETC", gimme);
2ae324a7 1108 LEAVE;
1109 SPAGAIN;
54310121 1110 if (gimme == G_SCALAR)
1111 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1112 RETURN;
1113 }
9bc64814 1114 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1115 RETPUSHUNDEF;
bbce6d69 1116 TAINT;
a0d0e21e 1117 sv_setpv(TARG, " ");
9bc64814 1118 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
a0d0e21e
LW		 1119 PUSHTARG;
1120 RETURN;
1121}
1122
1123PP(pp_read)
1124{
cea2e8a9 1125 return pp_sysread();
a0d0e21e
LW		 1126}
1127
76e3520e 1128STATIC OP *
cea2e8a9 1129S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1130{
11343788 1131 dTHR;
c09156bb 1132 register PERL_CONTEXT *cx;
54310121 1133 I32 gimme = GIMME_V;
a0d0e21e
LW		 1134 AV* padlist = CvPADLIST(cv);
1135 SV** svp = AvARRAY(padlist);
1136
1137 ENTER;
1138 SAVETMPS;
1139
1140 push_return(retop);
146174a9 1141 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1142 PUSHFORMAT(cx);
146174a9 1143 SAVEVPTR(PL_curpad);
3280af22 1144 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1145
4633a7c4 1146 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1147 return CvSTART(cv);
1148}
1149
1150PP(pp_enterwrite)
1151{
4e35701f 1152 djSP;
a0d0e21e
LW		 1153 register GV *gv;
1154 register IO *io;
1155 GV *fgv;
1156 CV *cv;
1157
1158 if (MAXARG == 0)
3280af22 1159 gv = PL_defoutgv;
a0d0e21e
LW		 1160 else {
1161 gv = (GV*)POPs;
1162 if (!gv)
3280af22 1163 gv = PL_defoutgv;
a0d0e21e
LW		 1164 }
1165 EXTEND(SP, 1);
1166 io = GvIO(gv);
1167 if (!io) {
1168 RETPUSHNO;
1169 }
1170 if (IoFMT_GV(io))
1171 fgv = IoFMT_GV(io);
1172 else
1173 fgv = gv;
1174
1175 cv = GvFORM(fgv);
a0d0e21e 1176 if (!cv) {
2dd78f96 1177 char *name = NULL;
a0d0e21e 1178 if (fgv) {
748a9306 1179 SV *tmpsv = sv_newmortal();
43693395 1180 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1181 name = SvPV_nolen(tmpsv);
a0d0e21e 1182 }
2dd78f96
JH		 1183 if (name && *name)
1184 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1185 DIE(aTHX_ "Not a format reference");
a0d0e21e 1186 }
44a8e56a 1187 if (CvCLONE(cv))
1188 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1189
44a8e56a 1190 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1191 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1192}
1193
1194PP(pp_leavewrite)
1195{
4e35701f 1196 djSP;
a0d0e21e
LW		 1197 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1198 register IO *io = GvIOp(gv);
760ac839
LW		 1199 PerlIO *ofp = IoOFP(io);
1200 PerlIO *fp;
a0d0e21e
LW		 1201 SV **newsp;
1202 I32 gimme;
c09156bb 1203 register PERL_CONTEXT *cx;
a0d0e21e 1204
760ac839 1205 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22
NIS		 1206 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1207 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1208 PL_formtarget != PL_toptarget)
a0d0e21e 1209 {
4633a7c4
LW		 1210 GV *fgv;
1211 CV *cv;
a0d0e21e
LW		 1212 if (!IoTOP_GV(io)) {
1213 GV *topgv;
46fc3d4c 1214 SV *topname;
a0d0e21e
LW		 1215
1216 if (!IoTOP_NAME(io)) {
1217 if (!IoFMT_NAME(io))
1218 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1219 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1220 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1221 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1222 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1223 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1224 else
1225 IoTOP_NAME(io) = savepv("top");
1226 }
1227 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1228 if (!topgv || !GvFORM(topgv)) {
1229 IoLINES_LEFT(io) = 100000000;
1230 goto forget_top;
1231 }
1232 IoTOP_GV(io) = topgv;
1233 }
748a9306
LW		 1234 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1235 I32 lines = IoLINES_LEFT(io);
3280af22 1236 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1237 if (lines <= 0) /* Yow, header didn't even fit!!! */
1238 goto forget_top;
748a9306
LW		 1239 while (lines-- > 0) {
1240 s = strchr(s, '\n');
1241 if (!s)
1242 break;
1243 s++;
1244 }
1245 if (s) {
3280af22
NIS		 1246 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1247 sv_chop(PL_formtarget, s);
1248 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1249 }
1250 }
a0d0e21e 1251 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
3280af22 1252 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
a0d0e21e
LW		 1253 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1254 IoPAGE(io)++;
3280af22 1255 PL_formtarget = PL_toptarget;
748a9306 1256 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1257 fgv = IoTOP_GV(io);
1258 if (!fgv)
cea2e8a9 1259 DIE(aTHX_ "bad top format reference");
4633a7c4 1260 cv = GvFORM(fgv);
2dd78f96
JH		 1261 {
1262 char *name = NULL;
1263 if (!cv) {
1264 SV *sv = sv_newmortal();
1265 gv_efullname4(sv, fgv, Nullch, FALSE);
1266 name = SvPV_nolen(sv);
1267 }
1268 if (name && *name)
1269 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1270 /* why no:
1271 else
1272 DIE(aTHX_ "Undefined top format called");
1273 ?*/
4633a7c4 1274 }
44a8e56a 1275 if (CvCLONE(cv))
1276 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1277 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1278 }
1279
1280 forget_top:
3280af22 1281 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1282 POPFORMAT(cx);
1283 LEAVE;
1284
1285 fp = IoOFP(io);
1286 if (!fp) {
599cee73 1287 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1288 if (IoIFP(io)) {
2dd78f96
JH		 1289 /* integrate with report_evil_fh()? */
1290 char *name = NULL;
1291 if (isGV(gv)) {
1292 SV* sv = sv_newmortal();
1293 gv_efullname4(sv, gv, Nullch, FALSE);
1294 name = SvPV_nolen(sv);
1295 }
1296 if (name && *name)
1297 Perl_warner(aTHX_ WARN_IO,
1298 "Filehandle %s opened only for input", name);
1299 else
1300 Perl_warner(aTHX_ WARN_IO,
1301 "Filehandle opened only for input");
cb50131a 1302 }
599cee73 1303 else if (ckWARN(WARN_CLOSED))
bc37a18f 1304 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1305 }
3280af22 1306 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1307 }
1308 else {
3280af22 1309 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1310 if (ckWARN(WARN_IO))
cea2e8a9 1311 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1312 }
3280af22 1313 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
760ac839 1314 PerlIO_error(fp))
3280af22 1315 PUSHs(&PL_sv_no);
a0d0e21e 1316 else {
3280af22
NIS		 1317 FmLINES(PL_formtarget) = 0;
1318 SvCUR_set(PL_formtarget, 0);
1319 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1320 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1321 (void)PerlIO_flush(fp);
3280af22 1322 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1323 }
1324 }
3280af22 1325 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1326 PUTBACK;
1327 return pop_return();
1328}
1329
1330PP(pp_prtf)
1331{
4e35701f 1332 djSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1333 GV *gv;
1334 IO *io;
760ac839 1335 PerlIO *fp;
26db47c4 1336 SV *sv;
46fc3d4c 1337 MAGIC *mg;
2d8e6c8d 1338 STRLEN n_a;
a0d0e21e 1339
533c011a 1340 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1341 gv = (GV*)*++MARK;
1342 else
3280af22 1343 gv = PL_defoutgv;
46fc3d4c 1344
155aba94 1345 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1346 if (MARK == ORIGMARK) {
4352c267 1347 MEXTEND(SP, 1);
46fc3d4c 1348 ++MARK;
1349 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1350 ++SP;
1351 }
1352 PUSHMARK(MARK - 1);
33c27489 1353 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1354 PUTBACK;
1355 ENTER;
864dbfa3 1356 call_method("PRINTF", G_SCALAR);
46fc3d4c 1357 LEAVE;
1358 SPAGAIN;
1359 MARK = ORIGMARK + 1;
1360 *MARK = *SP;
1361 SP = MARK;
1362 RETURN;
1363 }
1364
26db47c4 1365 sv = NEWSV(0,0);
a0d0e21e 1366 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1367 dTHR;
1368 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1369 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1370 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1371 goto just_say_no;
1372 }
1373 else if (!(fp = IoOFP(io))) {
599cee73 1374 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1375 /* integrate with report_evil_fh()? */
cb50131a 1376 if (IoIFP(io)) {
2dd78f96
JH		 1377 char *name = NULL;
1378 if (isGV(gv)) {
1379 gv_efullname4(sv, gv, Nullch, FALSE);
1380 name = SvPV_nolen(sv);
1381 }
1382 if (name && *name)
1383 Perl_warner(aTHX_ WARN_IO,
1384 "Filehandle %s opened only for input", name);
1385 else
1386 Perl_warner(aTHX_ WARN_IO,
1387 "Filehandle opened only for input");
cb50131a 1388 }
599cee73 1389 else if (ckWARN(WARN_CLOSED))
bc37a18f 1390 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1391 }
748a9306 1392 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1393 goto just_say_no;
1394 }
1395 else {
1396 do_sprintf(sv, SP - MARK, MARK + 1);
1397 if (!do_print(sv, fp))
1398 goto just_say_no;
1399
1400 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1401 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1402 goto just_say_no;
1403 }
1404 SvREFCNT_dec(sv);
1405 SP = ORIGMARK;
3280af22 1406 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1407 RETURN;
1408
1409 just_say_no:
1410 SvREFCNT_dec(sv);
1411 SP = ORIGMARK;
3280af22 1412 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1413 RETURN;
1414}
1415
c07a80fd 1416PP(pp_sysopen)
1417{
4e35701f 1418 djSP;
c07a80fd 1419 GV *gv;
c07a80fd 1420 SV *sv;
1421 char *tmps;
1422 STRLEN len;
1423 int mode, perm;
1424
1425 if (MAXARG > 3)
1426 perm = POPi;
1427 else
1428 perm = 0666;
1429 mode = POPi;
1430 sv = POPs;
1431 gv = (GV *)POPs;
1432
4592e6ca
NIS		 1433 /* Need TIEHANDLE method ? */
1434
c07a80fd 1435 tmps = SvPV(sv, len);
1436 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1437 IoLINES(GvIOp(gv)) = 0;
3280af22 1438 PUSHs(&PL_sv_yes);
c07a80fd 1439 }
1440 else {
3280af22 1441 PUSHs(&PL_sv_undef);
c07a80fd 1442 }
1443 RETURN;
1444}
1445
a0d0e21e
LW		 1446PP(pp_sysread)
1447{
4e35701f 1448 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1449 int offset;
1450 GV *gv;
1451 IO *io;
1452 char *buffer;
5b54f415 1453 SSize_t length;
1e422769 1454 Sock_size_t bufsize;
748a9306 1455 SV *bufsv;
a0d0e21e 1456 STRLEN blen;
2ae324a7 1457 MAGIC *mg;
a0d0e21e
LW		 1458
1459 gv = (GV*)*++MARK;
533c011a 1460 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1461 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1462 {
2ae324a7 1463 SV *sv;
1464
1465 PUSHMARK(MARK-1);
33c27489 1466 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1467 ENTER;
864dbfa3 1468 call_method("READ", G_SCALAR);
2ae324a7 1469 LEAVE;
1470 SPAGAIN;
1471 sv = POPs;
1472 SP = ORIGMARK;
1473 PUSHs(sv);
1474 RETURN;
1475 }
1476
a0d0e21e
LW		 1477 if (!gv)
1478 goto say_undef;
748a9306 1479 bufsv = *++MARK;
ff68c719 1480 if (! SvOK(bufsv))
1481 sv_setpvn(bufsv, "", 0);
748a9306 1482 buffer = SvPV_force(bufsv, blen);
a0d0e21e
LW		 1483 length = SvIVx(*++MARK);
1484 if (length < 0)
cea2e8a9 1485 DIE(aTHX_ "Negative length");
748a9306 1486 SETERRNO(0,0);
a0d0e21e
LW		 1487 if (MARK < SP)
1488 offset = SvIVx(*++MARK);
1489 else
1490 offset = 0;
1491 io = GvIO(gv);
1492 if (!io || !IoIFP(io))
1493 goto say_undef;
1494#ifdef HAS_SOCKET
533c011a 1495 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1496 char namebuf[MAXPATHLEN];
eec2d3df 1497#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1498 bufsize = sizeof (struct sockaddr_in);
1499#else
46fc3d4c 1500 bufsize = sizeof namebuf;
490ab354 1501#endif
abf95952
IZ		 1502#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1503 if (bufsize >= 256)
1504 bufsize = 255;
1505#endif
626727d5
GS		 1506#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1507 if (bufsize >= 256)
1508 bufsize = 255;
1509#endif
748a9306 1510 buffer = SvGROW(bufsv, length+1);
bbce6d69 1511 /* 'offset' means 'flags' here */
6ad3d225 1512 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1513 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1514 if (length < 0)
1515 RETPUSHUNDEF;
748a9306
LW		 1516 SvCUR_set(bufsv, length);
1517 *SvEND(bufsv) = '\0';
1518 (void)SvPOK_only(bufsv);
1519 SvSETMAGIC(bufsv);
aac0dd9a 1520 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1521 if (!(IoFLAGS(io) & IOf_UNTAINT))
1522 SvTAINTED_on(bufsv);
a0d0e21e 1523 SP = ORIGMARK;
46fc3d4c 1524 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1525 PUSHs(TARG);
1526 RETURN;
1527 }
1528#else
911d147d 1529 if (PL_op->op_type == OP_RECV)
cea2e8a9 1530 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1531#endif
bbce6d69 1532 if (offset < 0) {
1533 if (-offset > blen)
cea2e8a9 1534 DIE(aTHX_ "Offset outside string");
bbce6d69 1535 offset += blen;
1536 }
cd52b7b2 1537 bufsize = SvCUR(bufsv);
748a9306 1538 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1539 if (offset > bufsize) { /* Zero any newly allocated space */
1540 Zero(buffer+bufsize, offset-bufsize, char);
1541 }
533c011a 1542 if (PL_op->op_type == OP_SYSREAD) {
a7092146
GS		 1543#ifdef PERL_SOCK_SYSREAD_IS_RECV
1544 if (IoTYPE(io) == 's') {
1545 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1546 buffer+offset, length, 0);
1547 }
1548 else
1549#endif
1550 {
1551 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1552 buffer+offset, length);
1553 }
a0d0e21e
LW		 1554 }
1555 else
1556#ifdef HAS_SOCKET__bad_code_maybe
1557 if (IoTYPE(io) == 's') {
46fc3d4c 1558 char namebuf[MAXPATHLEN];
490ab354
JH		 1559#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1560 bufsize = sizeof (struct sockaddr_in);
1561#else
46fc3d4c 1562 bufsize = sizeof namebuf;
490ab354 1563#endif
6ad3d225 1564 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
46fc3d4c 1565 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1566 }
1567 else
1568#endif
3b02c43c 1569 {
760ac839 1570 length = PerlIO_read(IoIFP(io), buffer+offset, length);
3b02c43c 1571 /* fread() returns 0 on both error and EOF */
5c7a8c78 1572 if (length == 0 && PerlIO_error(IoIFP(io)))
3b02c43c
GS		 1573 length = -1;
1574 }
af8c498a 1575 if (length < 0) {
c529f79d
CB		 1576 if ((IoTYPE(io) == '>' || IoIFP(io) == PerlIO_stdout()
1577 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
af8c498a 1578 {
2dd78f96
JH		 1579 /* integrate with report_evil_fh()? */
1580 char *name = NULL;
1581 if (isGV(gv)) {
1582 SV* sv = sv_newmortal();
1583 gv_efullname4(sv, gv, Nullch, FALSE);
1584 name = SvPV_nolen(sv);
1585 }
1586 if (name && *name)
1587 Perl_warner(aTHX_ WARN_IO,
1588 "Filehandle %s opened only for output", name);
1589 else
1590 Perl_warner(aTHX_ WARN_IO,
1591 "Filehandle opened only for output");
af8c498a 1592 }
a0d0e21e 1593 goto say_undef;
af8c498a 1594 }
748a9306
LW		 1595 SvCUR_set(bufsv, length+offset);
1596 *SvEND(bufsv) = '\0';
1597 (void)SvPOK_only(bufsv);
1598 SvSETMAGIC(bufsv);
aac0dd9a 1599 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1600 if (!(IoFLAGS(io) & IOf_UNTAINT))
1601 SvTAINTED_on(bufsv);
a0d0e21e
LW		 1602 SP = ORIGMARK;
1603 PUSHi(length);
1604 RETURN;
1605
1606 say_undef:
1607 SP = ORIGMARK;
1608 RETPUSHUNDEF;
1609}
1610
1611PP(pp_syswrite)
1612{
092bebab
JH		 1613 djSP;
1614 int items = (SP - PL_stack_base) - TOPMARK;
1615 if (items == 2) {
9f089d78 1616 SV *sv;
092bebab 1617 EXTEND(SP, 1);
9f089d78
SB		 1618 sv = sv_2mortal(newSViv(sv_len(*SP)));
1619 PUSHs(sv);
092bebab
JH		 1620 PUTBACK;
1621 }
cea2e8a9 1622 return pp_send();
a0d0e21e
LW		 1623}
1624
1625PP(pp_send)
1626{
4e35701f 1627 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1628 GV *gv;
1629 IO *io;
748a9306 1630 SV *bufsv;
a0d0e21e 1631 char *buffer;
8c99d73e
GS		 1632 Size_t length;
1633 SSize_t retval;
1634 IV offset;
a0d0e21e 1635 STRLEN blen;
1d603a67 1636 MAGIC *mg;
a0d0e21e
LW		 1637
1638 gv = (GV*)*++MARK;
33c27489 1639 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1640 SV *sv;
1641
1642 PUSHMARK(MARK-1);
33c27489 1643 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1644 ENTER;
864dbfa3 1645 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1646 LEAVE;
1647 SPAGAIN;
1648 sv = POPs;
1649 SP = ORIGMARK;
1650 PUSHs(sv);
1651 RETURN;
1652 }
a0d0e21e
LW		 1653 if (!gv)
1654 goto say_undef;
748a9306
LW		 1655 bufsv = *++MARK;
1656 buffer = SvPV(bufsv, blen);
8c99d73e 1657#if Size_t_size > IVSIZE
3c001241 1658 length = (Size_t)SvNVx(*++MARK);
146174a9 1659#else
3c001241 1660 length = (Size_t)SvIVx(*++MARK);
146174a9 1661#endif
3c001241 1662 if ((SSize_t)length < 0)
cea2e8a9 1663 DIE(aTHX_ "Negative length");
748a9306 1664 SETERRNO(0,0);
a0d0e21e
LW		 1665 io = GvIO(gv);
1666 if (!io || !IoIFP(io)) {
8c99d73e 1667 retval = -1;
bc37a18f
RG		 1668 if (ckWARN(WARN_CLOSED))
1669 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1670 }
533c011a 1671 else if (PL_op->op_type == OP_SYSWRITE) {
bbce6d69 1672 if (MARK < SP) {
a0d0e21e 1673 offset = SvIVx(*++MARK);
bbce6d69 1674 if (offset < 0) {
1675 if (-offset > blen)
cea2e8a9 1676 DIE(aTHX_ "Offset outside string");
bbce6d69 1677 offset += blen;
fb73857a 1678 } else if (offset >= blen && blen > 0)
cea2e8a9 1679 DIE(aTHX_ "Offset outside string");
bbce6d69 1680 } else
a0d0e21e
LW		 1681 offset = 0;
1682 if (length > blen - offset)
1683 length = blen - offset;
a7092146
GS		 1684#ifdef PERL_SOCK_SYSWRITE_IS_SEND
1685 if (IoTYPE(io) == 's') {
8c99d73e 1686 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1687 buffer+offset, length, 0);
1688 }
1689 else
1690#endif
1691 {
94e4c244 1692 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1693 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1694 buffer+offset, length);
1695 }
a0d0e21e
LW		 1696 }
1697#ifdef HAS_SOCKET
1698 else if (SP > MARK) {
1699 char *sockbuf;
1700 STRLEN mlen;
1701 sockbuf = SvPVx(*++MARK, mlen);
8c99d73e
GS		 1702 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1703 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1704 }
1705 else
8c99d73e 1706 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
490ab354 1707
a0d0e21e
LW		 1708#else
1709 else
cea2e8a9 1710 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1711#endif
8c99d73e 1712 if (retval < 0)
a0d0e21e
LW		 1713 goto say_undef;
1714 SP = ORIGMARK;
8c99d73e
GS		 1715#if Size_t_size > IVSIZE
1716 PUSHn(retval);
1717#else
1718 PUSHi(retval);
1719#endif
a0d0e21e
LW		 1720 RETURN;
1721
1722 say_undef:
1723 SP = ORIGMARK;
1724 RETPUSHUNDEF;
1725}
1726
1727PP(pp_recv)
1728{
cea2e8a9 1729 return pp_sysread();
a0d0e21e
LW		 1730}
1731
1732PP(pp_eof)
1733{
4e35701f 1734 djSP;
a0d0e21e 1735 GV *gv;
4592e6ca 1736 MAGIC *mg;
a0d0e21e 1737
32da55ab 1738 if (MAXARG == 0) {
146174a9
CB		 1739 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1740 IO *io;
1741 gv = PL_last_in_gv = PL_argvgv;
1742 io = GvIO(gv);
1743 if (io && !IoIFP(io)) {
1744 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1745 IoLINES(io) = 0;
1746 IoFLAGS(io) &= ~IOf_START;
1747 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1748 sv_setpvn(GvSV(gv), "-", 1);
1749 SvSETMAGIC(GvSV(gv));
1750 }
1751 else if (!nextargv(gv))
1752 RETPUSHYES;
1753 }
1754 }
1755 else
1756 gv = PL_last_in_gv; /* eof */
1757 }
a0d0e21e 1758 else
146174a9 1759 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1760
1761 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1762 PUSHMARK(SP);
1763 XPUSHs(SvTIED_obj((SV*)gv, mg));
1764 PUTBACK;
1765 ENTER;
864dbfa3 1766 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1767 LEAVE;
1768 SPAGAIN;
1769 RETURN;
1770 }
1771
54310121 1772 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1773 RETURN;
1774}
1775
1776PP(pp_tell)
1777{
4e35701f 1778 djSP; dTARGET;
4592e6ca
NIS		 1779 GV *gv;
1780 MAGIC *mg;
a0d0e21e 1781
32da55ab 1782 if (MAXARG == 0)
3280af22 1783 gv = PL_last_in_gv;
a0d0e21e 1784 else
3280af22 1785 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1786
1787 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1788 PUSHMARK(SP);
1789 XPUSHs(SvTIED_obj((SV*)gv, mg));
1790 PUTBACK;
1791 ENTER;
864dbfa3 1792 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1793 LEAVE;
1794 SPAGAIN;
1795 RETURN;
1796 }
1797
146174a9
CB		 1798#if LSEEKSIZE > IVSIZE
1799 PUSHn( do_tell(gv) );
1800#else
a0d0e21e 1801 PUSHi( do_tell(gv) );
146174a9 1802#endif
a0d0e21e
LW		 1803 RETURN;
1804}
1805
1806PP(pp_seek)
1807{
cea2e8a9 1808 return pp_sysseek();
137443ea 1809}
1810
1811PP(pp_sysseek)
1812{
4e35701f 1813 djSP;
a0d0e21e
LW		 1814 GV *gv;
1815 int whence = POPi;
146174a9
CB		 1816#if LSEEKSIZE > IVSIZE
1817 Off_t offset = (Off_t)SvNVx(POPs);
1818#else
d9b3e12d 1819 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1820#endif
4592e6ca 1821 MAGIC *mg;
a0d0e21e 1822
3280af22 1823 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1824
1825 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1826 PUSHMARK(SP);
1827 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1828#if LSEEKSIZE > IVSIZE
1829 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1830#else
b448e4fe 1831 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1832#endif
b448e4fe 1833 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1834 PUTBACK;
1835 ENTER;
864dbfa3 1836 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1837 LEAVE;
1838 SPAGAIN;
1839 RETURN;
1840 }
1841
533c011a 1842 if (PL_op->op_type == OP_SEEK)
8903cb82 1843 PUSHs(boolSV(do_seek(gv, offset, whence)));
1844 else {
b448e4fe
JH		 1845 Off_t sought = do_sysseek(gv, offset, whence);
1846 if (sought < 0)
146174a9
CB		 1847 PUSHs(&PL_sv_undef);
1848 else {
b448e4fe 1849 SV* sv = sought ?
146174a9 1850#if LSEEKSIZE > IVSIZE
b448e4fe 1851 newSVnv((NV)sought)
146174a9 1852#else
b448e4fe 1853 newSViv(sought)
146174a9
CB		 1854#endif
1855 : newSVpvn(zero_but_true, ZBTLEN);
1856 PUSHs(sv_2mortal(sv));
1857 }
8903cb82 1858 }
a0d0e21e
LW		 1859 RETURN;
1860}
1861
1862PP(pp_truncate)
1863{
4e35701f 1864 djSP;
8c99d73e
GS		 1865 /* There seems to be no consensus on the length type of truncate()
1866 * and ftruncate(), both off_t and size_t have supporters. In
1867 * general one would think that when using large files, off_t is
1868 * at least as wide as size_t, so using an off_t should be okay. */
1869 /* XXX Configure probe for the length type of *truncate() needed XXX */
1870 Off_t len;
a0d0e21e
LW		 1871 int result = 1;
1872 GV *tmpgv;
2d8e6c8d 1873 STRLEN n_a;
a0d0e21e 1874
8c99d73e
GS		 1875#if Size_t_size > IVSIZE
1876 len = (Off_t)POPn;
1877#else
1878 len = (Off_t)POPi;
1879#endif
1880 /* Checking for length < 0 is problematic as the type might or
1881 * might not be signed: if it is not, clever compilers will moan. */
1882 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1883 SETERRNO(0,0);
5d94fbed 1884#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1885 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 1886 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 1887 do_ftruncate:
1e422769 1888 TAINT_PROPER("truncate");
cb50131a
CB		 1889 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1890 result = 0;
1891 else {
1892 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 1893#ifdef HAS_TRUNCATE
cb50131a 1894 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1895#else
cb50131a 1896 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1897#endif
cb50131a
CB		 1898 result = 0;
1899 }
a0d0e21e
LW		 1900 }
1901 else {
cbdc8872 1902 SV *sv = POPs;
1e422769 1903 char *name;
2d8e6c8d 1904 STRLEN n_a;
1e422769 1905
cbdc8872 1906 if (SvTYPE(sv) == SVt_PVGV) {
1907 tmpgv = (GV*)sv; /* *main::FRED for example */
1908 goto do_ftruncate;
1909 }
1910 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1911 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1912 goto do_ftruncate;
1913 }
1e422769 1914
2d8e6c8d 1915 name = SvPV(sv, n_a);
1e422769 1916 TAINT_PROPER("truncate");
cbdc8872 1917#ifdef HAS_TRUNCATE
1e422769 1918 if (truncate(name, len) < 0)
a0d0e21e 1919 result = 0;
cbdc8872 1920#else
1921 {
1922 int tmpfd;
6ad3d225 1923 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 1924 result = 0;
cbdc8872 1925 else {
1926 if (my_chsize(tmpfd, len) < 0)
1927 result = 0;
6ad3d225 1928 PerlLIO_close(tmpfd);
cbdc8872 1929 }
a0d0e21e 1930 }
a0d0e21e 1931#endif
cbdc8872 1932 }
a0d0e21e
LW		 1933
1934 if (result)
1935 RETPUSHYES;
1936 if (!errno)
748a9306 1937 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1938 RETPUSHUNDEF;
1939#else
cea2e8a9 1940 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 1941#endif
1942}
1943
1944PP(pp_fcntl)
1945{
cea2e8a9 1946 return pp_ioctl();
a0d0e21e
LW		 1947}
1948
1949PP(pp_ioctl)
1950{
4e35701f 1951 djSP; dTARGET;
748a9306 1952 SV *argsv = POPs;
a0d0e21e 1953 unsigned int func = U_I(POPn);
533c011a 1954 int optype = PL_op->op_type;
a0d0e21e 1955 char *s;
324aa91a 1956 IV retval;
a0d0e21e
LW		 1957 GV *gv = (GV*)POPs;
1958 IO *io = GvIOn(gv);
1959
748a9306
LW		 1960 if (!io || !argsv || !IoIFP(io)) {
1961 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 1962 RETPUSHUNDEF;
1963 }
1964
748a9306 1965 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 1966 STRLEN len;
324aa91a 1967 STRLEN need;
748a9306 1968 s = SvPV_force(argsv, len);
324aa91a
HF		 1969 need = IOCPARM_LEN(func);
1970 if (len < need) {
1971 s = Sv_Grow(argsv, need + 1);
1972 SvCUR_set(argsv, need);
a0d0e21e
LW		 1973 }
1974
748a9306 1975 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 1976 }
1977 else {
748a9306 1978 retval = SvIV(argsv);
c529f79d 1979 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 1980 }
1981
1982 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1983
1984 if (optype == OP_IOCTL)
1985#ifdef HAS_IOCTL
76e3520e 1986 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 1987#else
cea2e8a9 1988 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 1989#endif
1990 else
55497cff 1991#ifdef HAS_FCNTL
1992#if defined(OS2) && defined(__EMX__)
760ac839 1993 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 1994#else
760ac839 1995 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
55497cff 1996#endif
1997#else
cea2e8a9 1998 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 1999#endif
2000
748a9306
LW		 2001 if (SvPOK(argsv)) {
2002 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2003 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2004 PL_op_name[optype]);
748a9306
LW		 2005 s[SvCUR(argsv)] = 0; /* put our null back */
2006 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2007 }
2008
2009 if (retval == -1)
2010 RETPUSHUNDEF;
2011 if (retval != 0) {
2012 PUSHi(retval);
2013 }
2014 else {
8903cb82 2015 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2016 }
2017 RETURN;
2018}
2019
2020PP(pp_flock)
2021{
4e35701f 2022 djSP; dTARGET;
a0d0e21e
LW		 2023 I32 value;
2024 int argtype;
2025 GV *gv;
bc37a18f 2026 IO *io = NULL;
760ac839 2027 PerlIO *fp;
16d20bd9 2028
ff68c719 2029#ifdef FLOCK
a0d0e21e 2030 argtype = POPi;
32da55ab 2031 if (MAXARG == 0)
3280af22 2032 gv = PL_last_in_gv;
a0d0e21e
LW		 2033 else
2034 gv = (GV*)POPs;
bc37a18f
RG		 2035 if (gv && (io = GvIO(gv)))
2036 fp = IoIFP(io);
2037 else {
a0d0e21e 2038 fp = Nullfp;
bc37a18f
RG		 2039 io = NULL;
2040 }
a0d0e21e 2041 if (fp) {
68dc0745 2042 (void)PerlIO_flush(fp);
76e3520e 2043 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2044 }
cb50131a 2045 else {
bc37a18f
RG		 2046 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2047 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2048 value = 0;
cb50131a 2049 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2050 }
a0d0e21e
LW		 2051 PUSHi(value);
2052 RETURN;
2053#else
cea2e8a9 2054 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2055#endif
2056}
2057
2058/* Sockets. */
2059
2060PP(pp_socket)
2061{
4e35701f 2062 djSP;
a0d0e21e
LW		 2063#ifdef HAS_SOCKET
2064 GV *gv;
2065 register IO *io;
2066 int protocol = POPi;
2067 int type = POPi;
2068 int domain = POPi;
2069 int fd;
2070
2071 gv = (GV*)POPs;
2072
2073 if (!gv) {
748a9306 2074 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2075 RETPUSHUNDEF;
2076 }
2077
2078 io = GvIOn(gv);
2079 if (IoIFP(io))
2080 do_close(gv, FALSE);
2081
2082 TAINT_PROPER("socket");
6ad3d225 2083 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2084 if (fd < 0)
2085 RETPUSHUNDEF;
760ac839
LW		 2086 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2087 IoOFP(io) = PerlIO_fdopen(fd, "w");
a0d0e21e
LW		 2088 IoTYPE(io) = 's';
2089 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2090 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2091 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2092 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2093 RETPUSHUNDEF;
2094 }
8d2a6795
GS		 2095#if defined(HAS_FCNTL) && defined(F_SETFD)
2096 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2097#endif
a0d0e21e
LW		 2098
2099 RETPUSHYES;
2100#else
cea2e8a9 2101 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2102#endif
2103}
2104
2105PP(pp_sockpair)
2106{
4e35701f 2107 djSP;
a0d0e21e
LW		 2108#ifdef HAS_SOCKETPAIR
2109 GV *gv1;
2110 GV *gv2;
2111 register IO *io1;
2112 register IO *io2;
2113 int protocol = POPi;
2114 int type = POPi;
2115 int domain = POPi;
2116 int fd[2];
2117
2118 gv2 = (GV*)POPs;
2119 gv1 = (GV*)POPs;
2120 if (!gv1 || !gv2)
2121 RETPUSHUNDEF;
2122
2123 io1 = GvIOn(gv1);
2124 io2 = GvIOn(gv2);
2125 if (IoIFP(io1))
2126 do_close(gv1, FALSE);
2127 if (IoIFP(io2))
2128 do_close(gv2, FALSE);
2129
2130 TAINT_PROPER("socketpair");
6ad3d225 2131 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2132 RETPUSHUNDEF;
760ac839
LW		 2133 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2134 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
a0d0e21e 2135 IoTYPE(io1) = 's';
760ac839
LW		 2136 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2137 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
a0d0e21e
LW		 2138 IoTYPE(io2) = 's';
2139 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2140 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2141 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2142 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2143 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2144 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2145 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2146 RETPUSHUNDEF;
2147 }
8d2a6795
GS		 2148#if defined(HAS_FCNTL) && defined(F_SETFD)
2149 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2150 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2151#endif
a0d0e21e
LW		 2152
2153 RETPUSHYES;
2154#else
cea2e8a9 2155 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2156#endif
2157}
2158
2159PP(pp_bind)
2160{
4e35701f 2161 djSP;
a0d0e21e 2162#ifdef HAS_SOCKET
eec2d3df
GS		 2163#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2164 extern GETPRIVMODE();
2165 extern GETUSERMODE();
2166#endif
748a9306 2167 SV *addrsv = POPs;
a0d0e21e
LW		 2168 char *addr;
2169 GV *gv = (GV*)POPs;
2170 register IO *io = GvIOn(gv);
2171 STRLEN len;
eec2d3df
GS		 2172 int bind_ok = 0;
2173#ifdef MPE
2174 int mpeprivmode = 0;
2175#endif
a0d0e21e
LW		 2176
2177 if (!io || !IoIFP(io))
2178 goto nuts;
2179
748a9306 2180 addr = SvPV(addrsv, len);
a0d0e21e 2181 TAINT_PROPER("bind");
eec2d3df
GS		 2182#ifdef MPE /* Deal with MPE bind() peculiarities */
2183 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2184 /* The address *MUST* stupidly be zero. */
2185 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2186 /* PRIV mode is required to bind() to ports < 1024. */
2187 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2188 ((struct sockaddr_in *)addr)->sin_port > 0) {
2189 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2190 mpeprivmode = 1;
2191 }
2192 }
2193#endif /* MPE */
2194 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2195 (struct sockaddr *)addr, len) >= 0)
2196 bind_ok = 1;
2197
2198#ifdef MPE /* Switch back to USER mode */
2199 if (mpeprivmode)
2200 GETUSERMODE();
2201#endif /* MPE */
2202
2203 if (bind_ok)
a0d0e21e
LW		 2204 RETPUSHYES;
2205 else
2206 RETPUSHUNDEF;
2207
2208nuts:
599cee73 2209 if (ckWARN(WARN_CLOSED))
bc37a18f 2210 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2211 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2212 RETPUSHUNDEF;
2213#else
cea2e8a9 2214 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2215#endif
2216}
2217
2218PP(pp_connect)
2219{
4e35701f 2220 djSP;
a0d0e21e 2221#ifdef HAS_SOCKET
748a9306 2222 SV *addrsv = POPs;
a0d0e21e
LW		 2223 char *addr;
2224 GV *gv = (GV*)POPs;
2225 register IO *io = GvIOn(gv);
2226 STRLEN len;
2227
2228 if (!io || !IoIFP(io))
2229 goto nuts;
2230
748a9306 2231 addr = SvPV(addrsv, len);
a0d0e21e 2232 TAINT_PROPER("connect");
6ad3d225 2233 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2234 RETPUSHYES;
2235 else
2236 RETPUSHUNDEF;
2237
2238nuts:
599cee73 2239 if (ckWARN(WARN_CLOSED))
bc37a18f 2240 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2241 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2242 RETPUSHUNDEF;
2243#else
cea2e8a9 2244 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2245#endif
2246}
2247
2248PP(pp_listen)
2249{
4e35701f 2250 djSP;
a0d0e21e
LW		 2251#ifdef HAS_SOCKET
2252 int backlog = POPi;
2253 GV *gv = (GV*)POPs;
2254 register IO *io = GvIOn(gv);
2255
2256 if (!io || !IoIFP(io))
2257 goto nuts;
2258
6ad3d225 2259 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2260 RETPUSHYES;
2261 else
2262 RETPUSHUNDEF;
2263
2264nuts:
599cee73 2265 if (ckWARN(WARN_CLOSED))
bc37a18f 2266 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2267 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2268 RETPUSHUNDEF;
2269#else
cea2e8a9 2270 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2271#endif
2272}
2273
2274PP(pp_accept)
2275{
4e35701f 2276 djSP; dTARGET;
a0d0e21e
LW		 2277#ifdef HAS_SOCKET
2278 GV *ngv;
2279 GV *ggv;
2280 register IO *nstio;
2281 register IO *gstio;
4633a7c4 2282 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2283 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2284 int fd;
2285
2286 ggv = (GV*)POPs;
2287 ngv = (GV*)POPs;
2288
2289 if (!ngv)
2290 goto badexit;
2291 if (!ggv)
2292 goto nuts;
2293
2294 gstio = GvIO(ggv);
2295 if (!gstio || !IoIFP(gstio))
2296 goto nuts;
2297
2298 nstio = GvIOn(ngv);
2299 if (IoIFP(nstio))
2300 do_close(ngv, FALSE);
2301
6ad3d225 2302 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2303 if (fd < 0)
2304 goto badexit;
760ac839
LW		 2305 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2306 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
a0d0e21e
LW		 2307 IoTYPE(nstio) = 's';
2308 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2309 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2310 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2311 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2312 goto badexit;
2313 }
8d2a6795
GS		 2314#if defined(HAS_FCNTL) && defined(F_SETFD)
2315 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2316#endif
a0d0e21e 2317
748a9306 2318 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2319 RETURN;
2320
2321nuts:
599cee73 2322 if (ckWARN(WARN_CLOSED))
bc37a18f 2323 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2324 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2325
2326badexit:
2327 RETPUSHUNDEF;
2328
2329#else
cea2e8a9 2330 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2331#endif
2332}
2333
2334PP(pp_shutdown)
2335{
4e35701f 2336 djSP; dTARGET;
a0d0e21e
LW		 2337#ifdef HAS_SOCKET
2338 int how = POPi;
2339 GV *gv = (GV*)POPs;
2340 register IO *io = GvIOn(gv);
2341
2342 if (!io || !IoIFP(io))
2343 goto nuts;
2344
6ad3d225 2345 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2346 RETURN;
2347
2348nuts:
599cee73 2349 if (ckWARN(WARN_CLOSED))
bc37a18f 2350 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2351 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2352 RETPUSHUNDEF;
2353#else
cea2e8a9 2354 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2355#endif
2356}
2357
2358PP(pp_gsockopt)
2359{
2360#ifdef HAS_SOCKET
cea2e8a9 2361 return pp_ssockopt();
a0d0e21e 2362#else
cea2e8a9 2363 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2364#endif
2365}
2366
2367PP(pp_ssockopt)
2368{
4e35701f 2369 djSP;
a0d0e21e 2370#ifdef HAS_SOCKET
533c011a 2371 int optype = PL_op->op_type;
a0d0e21e
LW		 2372 SV *sv;
2373 int fd;
2374 unsigned int optname;
2375 unsigned int lvl;
2376 GV *gv;
2377 register IO *io;
1e422769 2378 Sock_size_t len;
a0d0e21e
LW		 2379
2380 if (optype == OP_GSOCKOPT)
2381 sv = sv_2mortal(NEWSV(22, 257));
2382 else
2383 sv = POPs;
2384 optname = (unsigned int) POPi;
2385 lvl = (unsigned int) POPi;
2386
2387 gv = (GV*)POPs;
2388 io = GvIOn(gv);
2389 if (!io || !IoIFP(io))
2390 goto nuts;
2391
760ac839 2392 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2393 switch (optype) {
2394 case OP_GSOCKOPT:
748a9306 2395 SvGROW(sv, 257);
a0d0e21e 2396 (void)SvPOK_only(sv);
748a9306
LW		 2397 SvCUR_set(sv,256);
2398 *SvEND(sv) ='\0';
1e422769 2399 len = SvCUR(sv);
6ad3d225 2400 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2401 goto nuts2;
1e422769 2402 SvCUR_set(sv, len);
748a9306 2403 *SvEND(sv) ='\0';
a0d0e21e
LW		 2404 PUSHs(sv);
2405 break;
2406 case OP_SSOCKOPT: {
1e422769 2407 char *buf;
2408 int aint;
2409 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2410 STRLEN l;
2411 buf = SvPV(sv, l);
2412 len = l;
1e422769 2413 }
56ee1660 2414 else {
a0d0e21e
LW		 2415 aint = (int)SvIV(sv);
2416 buf = (char*)&aint;
2417 len = sizeof(int);
2418 }
6ad3d225 2419 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2420 goto nuts2;
3280af22 2421 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2422 }
2423 break;
2424 }
2425 RETURN;
2426
2427nuts:
599cee73 2428 if (ckWARN(WARN_CLOSED))
bc37a18f 2429 report_evil_fh(gv, io, optype);
748a9306 2430 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2431nuts2:
2432 RETPUSHUNDEF;
2433
2434#else
cea2e8a9 2435 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2436#endif
2437}
2438
2439PP(pp_getsockname)
2440{
2441#ifdef HAS_SOCKET
cea2e8a9 2442 return pp_getpeername();
a0d0e21e 2443#else
cea2e8a9 2444 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2445#endif
2446}
2447
2448PP(pp_getpeername)
2449{
4e35701f 2450 djSP;
a0d0e21e 2451#ifdef HAS_SOCKET
533c011a 2452 int optype = PL_op->op_type;
a0d0e21e
LW		 2453 SV *sv;
2454 int fd;
2455 GV *gv = (GV*)POPs;
2456 register IO *io = GvIOn(gv);
1e422769 2457 Sock_size_t len;
a0d0e21e
LW		 2458
2459 if (!io || !IoIFP(io))
2460 goto nuts;
2461
2462 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2463 (void)SvPOK_only(sv);
1e422769 2464 len = 256;
2465 SvCUR_set(sv, len);
748a9306 2466 *SvEND(sv) ='\0';
760ac839 2467 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2468 switch (optype) {
2469 case OP_GETSOCKNAME:
6ad3d225 2470 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2471 goto nuts2;
2472 break;
2473 case OP_GETPEERNAME:
6ad3d225 2474 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2475 goto nuts2;
490ab354
JH		 2476#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2477 {
2478 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";
2479 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2480 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2481 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2482 sizeof(u_short) + sizeof(struct in_addr))) {
2483 goto nuts2;
2484 }
2485 }
2486#endif
a0d0e21e
LW		 2487 break;
2488 }
13826f2c
CS		 2489#ifdef BOGUS_GETNAME_RETURN
2490 /* Interactive Unix, getpeername() and getsockname()
2491 does not return valid namelen */
1e422769 2492 if (len == BOGUS_GETNAME_RETURN)
2493 len = sizeof(struct sockaddr);
13826f2c 2494#endif
1e422769 2495 SvCUR_set(sv, len);
748a9306 2496 *SvEND(sv) ='\0';
a0d0e21e
LW		 2497 PUSHs(sv);
2498 RETURN;
2499
2500nuts:
599cee73 2501 if (ckWARN(WARN_CLOSED))
bc37a18f 2502 report_evil_fh(gv, io, optype);
748a9306 2503 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2504nuts2:
2505 RETPUSHUNDEF;
2506
2507#else
cea2e8a9 2508 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2509#endif
2510}
2511
2512/* Stat calls. */
2513
2514PP(pp_lstat)
2515{
cea2e8a9 2516 return pp_stat();
a0d0e21e
LW		 2517}
2518
2519PP(pp_stat)
2520{
4e35701f 2521 djSP;
2dd78f96 2522 GV *gv;
54310121 2523 I32 gimme;
a0d0e21e 2524 I32 max = 13;
2d8e6c8d 2525 STRLEN n_a;
a0d0e21e 2526
533c011a 2527 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2528 gv = cGVOP_gv;
9d837945
TM		 2529 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2530 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2531 "lstat() on filehandle %s", GvENAME(gv));
748a9306 2532 do_fstat:
2dd78f96 2533 if (gv != PL_defgv) {
3280af22 2534 PL_laststype = OP_STAT;
2dd78f96 2535 PL_statgv = gv;
3280af22 2536 sv_setpv(PL_statname, "");
2dd78f96
JH		 2537 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2538 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2539 }
9ddeeac9 2540 if (PL_laststatval < 0) {
2dd78f96
JH		 2541 dTHR;
2542 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2543 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2544 max = 0;
9ddeeac9 2545 }
a0d0e21e
LW		 2546 }
2547 else {
748a9306
LW		 2548 SV* sv = POPs;
2549 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2550 gv = (GV*)sv;
748a9306
LW		 2551 goto do_fstat;
2552 }
2553 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2554 gv = (GV*)SvRV(sv);
748a9306
LW		 2555 goto do_fstat;
2556 }
2d8e6c8d 2557 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2558 PL_statgv = Nullgv;
a0d0e21e 2559#ifdef HAS_LSTAT
533c011a
NIS		 2560 PL_laststype = PL_op->op_type;
2561 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2562 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2563 else
2564#endif
2d8e6c8d 2565 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2566 if (PL_laststatval < 0) {
2d8e6c8d 2567 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2568 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2569 max = 0;
2570 }
2571 }
2572
54310121 2573 gimme = GIMME_V;
2574 if (gimme != G_ARRAY) {
2575 if (gimme != G_VOID)
2576 XPUSHs(boolSV(max));
2577 RETURN;
a0d0e21e
LW		 2578 }
2579 if (max) {
36477c24 2580 EXTEND(SP, max);
2581 EXTEND_MORTAL(max);
1ff81528
PL		 2582 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2583 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2584 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2585 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2586#if Uid_t_size > IVSIZE
2587 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2588#else
23dcd6c8 2589# if Uid_t_sign <= 0
1ff81528 2590 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2591# else
2592 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2593# endif
146174a9
CB		 2594#endif
2595#if Gid_t_size > IVSIZE
2596 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2597#else
23dcd6c8 2598# if Gid_t_sign <= 0
1ff81528 2599 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2600# else
2601 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2602# endif
146174a9 2603#endif
cbdc8872 2604#ifdef USE_STAT_RDEV
1ff81528 2605 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2606#else
79cb57f6 2607 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2608#endif
146174a9
CB		 2609#if Off_t_size > IVSIZE
2610 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2611#else
1ff81528 2612 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2613#endif
cbdc8872 2614#ifdef BIG_TIME
172ae379
JH		 2615 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2616 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2617 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2618#else
1ff81528
PL		 2619 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2620 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2621 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2622#endif
a0d0e21e 2623#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2624 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2625 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2626#else
79cb57f6
GS		 2627 PUSHs(sv_2mortal(newSVpvn("", 0)));
2628 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2629#endif
2630 }
2631 RETURN;
2632}
2633
2634PP(pp_ftrread)
2635{
5ff3f7a4 2636 I32 result;
4e35701f 2637 djSP;
5ff3f7a4 2638#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2639 STRLEN n_a;
5ff3f7a4 2640 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2641 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2642 if (result == 0)
2643 RETPUSHYES;
2644 if (result < 0)
2645 RETPUSHUNDEF;
2646 RETPUSHNO;
22865c03
GS		 2647 }
2648 else
cea2e8a9 2649 result = my_stat();
5ff3f7a4 2650#else
cea2e8a9 2651 result = my_stat();
5ff3f7a4 2652#endif
22865c03 2653 SPAGAIN;
a0d0e21e
LW		 2654 if (result < 0)
2655 RETPUSHUNDEF;
3280af22 2656 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2657 RETPUSHYES;
2658 RETPUSHNO;
2659}
2660
2661PP(pp_ftrwrite)
2662{
5ff3f7a4 2663 I32 result;
4e35701f 2664 djSP;
5ff3f7a4 2665#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2666 STRLEN n_a;
5ff3f7a4 2667 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2668 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2669 if (result == 0)
2670 RETPUSHYES;
2671 if (result < 0)
2672 RETPUSHUNDEF;
2673 RETPUSHNO;
22865c03
GS		 2674 }
2675 else
cea2e8a9 2676 result = my_stat();
5ff3f7a4 2677#else
cea2e8a9 2678 result = my_stat();
5ff3f7a4 2679#endif
22865c03 2680 SPAGAIN;
a0d0e21e
LW		 2681 if (result < 0)
2682 RETPUSHUNDEF;
3280af22 2683 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2684 RETPUSHYES;
2685 RETPUSHNO;
2686}
2687
2688PP(pp_ftrexec)
2689{
5ff3f7a4 2690 I32 result;
4e35701f 2691 djSP;
5ff3f7a4 2692#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2693 STRLEN n_a;
5ff3f7a4 2694 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2695 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2696 if (result == 0)
2697 RETPUSHYES;
2698 if (result < 0)
2699 RETPUSHUNDEF;
2700 RETPUSHNO;
22865c03
GS		 2701 }
2702 else
cea2e8a9 2703 result = my_stat();
5ff3f7a4 2704#else
cea2e8a9 2705 result = my_stat();
5ff3f7a4 2706#endif
22865c03 2707 SPAGAIN;
a0d0e21e
LW		 2708 if (result < 0)
2709 RETPUSHUNDEF;
3280af22 2710 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2711 RETPUSHYES;
2712 RETPUSHNO;
2713}
2714
2715PP(pp_fteread)
2716{
5ff3f7a4 2717 I32 result;
4e35701f 2718 djSP;
5ff3f7a4 2719#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2720 STRLEN n_a;
5ff3f7a4 2721 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2722 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2723 if (result == 0)
2724 RETPUSHYES;
2725 if (result < 0)
2726 RETPUSHUNDEF;
2727 RETPUSHNO;
22865c03
GS		 2728 }
2729 else
cea2e8a9 2730 result = my_stat();
5ff3f7a4 2731#else
cea2e8a9 2732 result = my_stat();
5ff3f7a4 2733#endif
22865c03 2734 SPAGAIN;
a0d0e21e
LW		 2735 if (result < 0)
2736 RETPUSHUNDEF;
3280af22 2737 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2738 RETPUSHYES;
2739 RETPUSHNO;
2740}
2741
2742PP(pp_ftewrite)
2743{
5ff3f7a4 2744 I32 result;
4e35701f 2745 djSP;
5ff3f7a4 2746#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2747 STRLEN n_a;
5ff3f7a4 2748 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2749 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2750 if (result == 0)
2751 RETPUSHYES;
2752 if (result < 0)
2753 RETPUSHUNDEF;
2754 RETPUSHNO;
22865c03
GS		 2755 }
2756 else
cea2e8a9 2757 result = my_stat();
5ff3f7a4 2758#else
cea2e8a9 2759 result = my_stat();
5ff3f7a4 2760#endif
22865c03 2761 SPAGAIN;
a0d0e21e
LW		 2762 if (result < 0)
2763 RETPUSHUNDEF;
3280af22 2764 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2765 RETPUSHYES;
2766 RETPUSHNO;
2767}
2768
2769PP(pp_fteexec)
2770{
5ff3f7a4 2771 I32 result;
4e35701f 2772 djSP;
5ff3f7a4 2773#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2774 STRLEN n_a;
5ff3f7a4 2775 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2776 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2777 if (result == 0)
2778 RETPUSHYES;
2779 if (result < 0)
2780 RETPUSHUNDEF;
2781 RETPUSHNO;
22865c03
GS		 2782 }
2783 else
cea2e8a9 2784 result = my_stat();
5ff3f7a4 2785#else
cea2e8a9 2786 result = my_stat();
5ff3f7a4 2787#endif
22865c03 2788 SPAGAIN;
a0d0e21e
LW		 2789 if (result < 0)
2790 RETPUSHUNDEF;
3280af22 2791 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2792 RETPUSHYES;
2793 RETPUSHNO;
2794}
2795
2796PP(pp_ftis)
2797{
cea2e8a9 2798 I32 result = my_stat();
4e35701f 2799 djSP;
a0d0e21e
LW		 2800 if (result < 0)
2801 RETPUSHUNDEF;
2802 RETPUSHYES;
2803}
2804
2805PP(pp_fteowned)
2806{
cea2e8a9 2807 return pp_ftrowned();
a0d0e21e
LW		 2808}
2809
2810PP(pp_ftrowned)
2811{
cea2e8a9 2812 I32 result = my_stat();
4e35701f 2813 djSP;
a0d0e21e
LW		 2814 if (result < 0)
2815 RETPUSHUNDEF;
146174a9
CB		 2816 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2817 PL_euid : PL_uid) )
a0d0e21e
LW		 2818 RETPUSHYES;
2819 RETPUSHNO;
2820}
2821
2822PP(pp_ftzero)
2823{
cea2e8a9 2824 I32 result = my_stat();
4e35701f 2825 djSP;
a0d0e21e
LW		 2826 if (result < 0)
2827 RETPUSHUNDEF;
146174a9 2828 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2829 RETPUSHYES;
2830 RETPUSHNO;
2831}
2832
2833PP(pp_ftsize)
2834{
cea2e8a9 2835 I32 result = my_stat();
4e35701f 2836 djSP; dTARGET;
a0d0e21e
LW		 2837 if (result < 0)
2838 RETPUSHUNDEF;
146174a9
CB		 2839#if Off_t_size > IVSIZE
2840 PUSHn(PL_statcache.st_size);
2841#else
3280af22 2842 PUSHi(PL_statcache.st_size);
146174a9 2843#endif
a0d0e21e
LW		 2844 RETURN;
2845}
2846
2847PP(pp_ftmtime)
2848{
cea2e8a9 2849 I32 result = my_stat();
4e35701f 2850 djSP; dTARGET;
a0d0e21e
LW		 2851 if (result < 0)
2852 RETPUSHUNDEF;
c6419e06 2853 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2854 RETURN;
2855}
2856
2857PP(pp_ftatime)
2858{
cea2e8a9 2859 I32 result = my_stat();
4e35701f 2860 djSP; dTARGET;
a0d0e21e
LW		 2861 if (result < 0)
2862 RETPUSHUNDEF;
c6419e06 2863 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 2864 RETURN;
2865}
2866
2867PP(pp_ftctime)
2868{
cea2e8a9 2869 I32 result = my_stat();
4e35701f 2870 djSP; dTARGET;
a0d0e21e
LW		 2871 if (result < 0)
2872 RETPUSHUNDEF;
c6419e06 2873 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 2874 RETURN;
2875}
2876
2877PP(pp_ftsock)
2878{
cea2e8a9 2879 I32 result = my_stat();
4e35701f 2880 djSP;
a0d0e21e
LW		 2881 if (result < 0)
2882 RETPUSHUNDEF;
3280af22 2883 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 2884 RETPUSHYES;
2885 RETPUSHNO;
2886}
2887
2888PP(pp_ftchr)
2889{
cea2e8a9 2890 I32 result = my_stat();
4e35701f 2891 djSP;
a0d0e21e
LW		 2892 if (result < 0)
2893 RETPUSHUNDEF;
3280af22 2894 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 2895 RETPUSHYES;
2896 RETPUSHNO;
2897}
2898
2899PP(pp_ftblk)
2900{
cea2e8a9 2901 I32 result = my_stat();
4e35701f 2902 djSP;
a0d0e21e
LW		 2903 if (result < 0)
2904 RETPUSHUNDEF;
3280af22 2905 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 2906 RETPUSHYES;
2907 RETPUSHNO;
2908}
2909
2910PP(pp_ftfile)
2911{
cea2e8a9 2912 I32 result = my_stat();
4e35701f 2913 djSP;
a0d0e21e
LW		 2914 if (result < 0)
2915 RETPUSHUNDEF;
3280af22 2916 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 2917 RETPUSHYES;
2918 RETPUSHNO;
2919}
2920
2921PP(pp_ftdir)
2922{
cea2e8a9 2923 I32 result = my_stat();
4e35701f 2924 djSP;
a0d0e21e
LW		 2925 if (result < 0)
2926 RETPUSHUNDEF;
3280af22 2927 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 2928 RETPUSHYES;
2929 RETPUSHNO;
2930}
2931
2932PP(pp_ftpipe)
2933{
cea2e8a9 2934 I32 result = my_stat();
4e35701f 2935 djSP;
a0d0e21e
LW		 2936 if (result < 0)
2937 RETPUSHUNDEF;
3280af22 2938 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 2939 RETPUSHYES;
2940 RETPUSHNO;
2941}
2942
2943PP(pp_ftlink)
2944{
cea2e8a9 2945 I32 result = my_lstat();
4e35701f 2946 djSP;
a0d0e21e
LW		 2947 if (result < 0)
2948 RETPUSHUNDEF;
3280af22 2949 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 2950 RETPUSHYES;
2951 RETPUSHNO;
2952}
2953
2954PP(pp_ftsuid)
2955{
4e35701f 2956 djSP;
a0d0e21e 2957#ifdef S_ISUID
cea2e8a9 2958 I32 result = my_stat();
a0d0e21e
LW		 2959 SPAGAIN;
2960 if (result < 0)
2961 RETPUSHUNDEF;
3280af22 2962 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 2963 RETPUSHYES;
2964#endif
2965 RETPUSHNO;
2966}
2967
2968PP(pp_ftsgid)
2969{
4e35701f 2970 djSP;
a0d0e21e 2971#ifdef S_ISGID
cea2e8a9 2972 I32 result = my_stat();
a0d0e21e
LW		 2973 SPAGAIN;
2974 if (result < 0)
2975 RETPUSHUNDEF;
3280af22 2976 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 2977 RETPUSHYES;
2978#endif
2979 RETPUSHNO;
2980}
2981
2982PP(pp_ftsvtx)
2983{
4e35701f 2984 djSP;
a0d0e21e 2985#ifdef S_ISVTX
cea2e8a9 2986 I32 result = my_stat();
a0d0e21e
LW		 2987 SPAGAIN;
2988 if (result < 0)
2989 RETPUSHUNDEF;
3280af22 2990 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 2991 RETPUSHYES;
2992#endif
2993 RETPUSHNO;
2994}
2995
2996PP(pp_fttty)
2997{
4e35701f 2998 djSP;
a0d0e21e
LW		 2999 int fd;
3000 GV *gv;
fb73857a 3001 char *tmps = Nullch;
2d8e6c8d 3002 STRLEN n_a;
fb73857a 3003
533c011a 3004 if (PL_op->op_flags & OPf_REF)
146174a9 3005 gv = cGVOP_gv;
fb73857a 3006 else if (isGV(TOPs))
3007 gv = (GV*)POPs;
3008 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3009 gv = (GV*)SvRV(POPs);
a0d0e21e 3010 else
2d8e6c8d 3011 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3012
a0d0e21e 3013 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3014 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3015 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3016 fd = atoi(tmps);
3017 else
3018 RETPUSHUNDEF;
6ad3d225 3019 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3020 RETPUSHYES;
3021 RETPUSHNO;
3022}
3023
16d20bd9
AD		 3024#if defined(atarist) /* this will work with atariST. Configure will
3025 make guesses for other systems. */
3026# define FILE_base(f) ((f)->_base)
3027# define FILE_ptr(f) ((f)->_ptr)
3028# define FILE_cnt(f) ((f)->_cnt)
3029# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3030#endif
3031
3032PP(pp_fttext)
3033{
4e35701f 3034 djSP;
a0d0e21e
LW		 3035 I32 i;
3036 I32 len;
3037 I32 odd = 0;
3038 STDCHAR tbuf[512];
3039 register STDCHAR *s;
3040 register IO *io;
5f05dabc 3041 register SV *sv;
3042 GV *gv;
2d8e6c8d 3043 STRLEN n_a;
146174a9 3044 PerlIO *fp;
a0d0e21e 3045
533c011a 3046 if (PL_op->op_flags & OPf_REF)
146174a9 3047 gv = cGVOP_gv;
5f05dabc 3048 else if (isGV(TOPs))
3049 gv = (GV*)POPs;
3050 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3051 gv = (GV*)SvRV(POPs);
3052 else
3053 gv = Nullgv;
3054
3055 if (gv) {
a0d0e21e 3056 EXTEND(SP, 1);
3280af22
NIS		 3057 if (gv == PL_defgv) {
3058 if (PL_statgv)
3059 io = GvIO(PL_statgv);
a0d0e21e 3060 else {
3280af22 3061 sv = PL_statname;
a0d0e21e
LW		 3062 goto really_filename;
3063 }
3064 }
3065 else {
3280af22
NIS		 3066 PL_statgv = gv;
3067 PL_laststatval = -1;
3068 sv_setpv(PL_statname, "");
3069 io = GvIO(PL_statgv);
a0d0e21e
LW		 3070 }
3071 if (io && IoIFP(io)) {
5f05dabc 3072 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3073 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3074 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3075 if (PL_laststatval < 0)
5f05dabc 3076 RETPUSHUNDEF;
3280af22 3077 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
533c011a 3078 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3079 RETPUSHNO;
3080 else
3081 RETPUSHYES;
a20bf0c3 3082 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3083 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3084 if (i != EOF)
760ac839 3085 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3086 }
a20bf0c3 3087 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3088 RETPUSHYES;
a20bf0c3
JH		 3089 len = PerlIO_get_bufsiz(IoIFP(io));
3090 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3091 /* sfio can have large buffers - limit to 512 */
3092 if (len > 512)
3093 len = 512;
a0d0e21e
LW		 3094 }
3095 else {
2dd78f96
JH		 3096 dTHR;
3097 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3098 gv = cGVOP_gv;
2dd78f96 3099 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3100 }
748a9306 3101 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3102 RETPUSHUNDEF;
3103 }
3104 }
3105 else {
3106 sv = POPs;
5f05dabc 3107 really_filename:
3280af22
NIS		 3108 PL_statgv = Nullgv;
3109 PL_laststatval = -1;
2d8e6c8d 3110 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3111 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3112 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3113 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3114 RETPUSHUNDEF;
3115 }
146174a9
CB		 3116 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3117 if (PL_laststatval < 0) {
3118 (void)PerlIO_close(fp);
5f05dabc 3119 RETPUSHUNDEF;
146174a9 3120 }
92d29cee 3121 do_binmode(fp, '<', O_BINARY);
146174a9
CB		 3122 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3123 (void)PerlIO_close(fp);
a0d0e21e 3124 if (len <= 0) {
533c011a 3125 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3126 RETPUSHNO; /* special case NFS directories */
3127 RETPUSHYES; /* null file is anything */
3128 }
3129 s = tbuf;
3130 }
3131
3132 /* now scan s to look for textiness */
4633a7c4 3133 /* XXX ASCII dependent code */
a0d0e21e 3134
146174a9
CB		 3135#if defined(DOSISH) || defined(USEMYBINMODE)
3136 /* ignore trailing ^Z on short files */
3137 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3138 --len;
3139#endif
3140
a0d0e21e
LW		 3141 for (i = 0; i < len; i++, s++) {
3142 if (!*s) { /* null never allowed in text */
3143 odd += len;
3144 break;
3145 }
9d116dd7
JH		 3146#ifdef EBCDIC
3147 else if (!(isPRINT(*s) || isSPACE(*s)))
3148 odd++;
3149#else
146174a9
CB		 3150 else if (*s & 128) {
3151#ifdef USE_LOCALE
b3f66c68
GS		 3152 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3153 continue;
3154#endif
3155 /* utf8 characters don't count as odd */
3156 if (*s & 0x40) {
3157 int ulen = UTF8SKIP(s);
3158 if (ulen < len - i) {
3159 int j;
3160 for (j = 1; j < ulen; j++) {
3161 if ((s[j] & 0xc0) != 0x80)
3162 goto not_utf8;
3163 }
3164 --ulen; /* loop does extra increment */
3165 s += ulen;
3166 i += ulen;
3167 continue;
3168 }
3169 }
3170 not_utf8:
3171 odd++;
146174a9 3172 }
a0d0e21e
LW		 3173 else if (*s < 32 &&
3174 *s != '\n' && *s != '\r' && *s != '\b' &&
3175 *s != '\t' && *s != '\f' && *s != 27)
3176 odd++;
9d116dd7 3177#endif
a0d0e21e
LW		 3178 }
3179
533c011a 3180 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3181 RETPUSHNO;
3182 else
3183 RETPUSHYES;
3184}
3185
3186PP(pp_ftbinary)
3187{
cea2e8a9 3188 return pp_fttext();
a0d0e21e
LW		 3189}
3190
3191/* File calls. */
3192
3193PP(pp_chdir)
3194{
4e35701f 3195 djSP; dTARGET;
a0d0e21e
LW		 3196 char *tmps;
3197 SV **svp;
2d8e6c8d 3198 STRLEN n_a;
a0d0e21e
LW		 3199
3200 if (MAXARG < 1)
3201 tmps = Nullch;
3202 else
2d8e6c8d 3203 tmps = POPpx;
a0d0e21e 3204 if (!tmps || !*tmps) {
3280af22 3205 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3206 if (svp)
2d8e6c8d 3207 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3208 }
3209 if (!tmps || !*tmps) {
3280af22 3210 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3211 if (svp)
2d8e6c8d 3212 tmps = SvPV(*svp, n_a);
a0d0e21e 3213 }
491527d0
GS		 3214#ifdef VMS
3215 if (!tmps || !*tmps) {
6b88bc9c 3216 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3217 if (svp)
2d8e6c8d 3218 tmps = SvPV(*svp, n_a);
491527d0
GS		 3219 }
3220#endif
a0d0e21e 3221 TAINT_PROPER("chdir");
6ad3d225 3222 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3223#ifdef VMS
3224 /* Clear the DEFAULT element of ENV so we'll get the new value
3225 * in the future. */
6b88bc9c 3226 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3227#endif
a0d0e21e
LW		 3228 RETURN;
3229}
3230
3231PP(pp_chown)
3232{
4e35701f 3233 djSP; dMARK; dTARGET;
a0d0e21e
LW		 3234 I32 value;
3235#ifdef HAS_CHOWN
533c011a 3236 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3237 SP = MARK;
3238 PUSHi(value);
3239 RETURN;
3240#else
cea2e8a9 3241 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3242#endif
3243}
3244
3245PP(pp_chroot)
3246{
4e35701f 3247 djSP; dTARGET;
a0d0e21e
LW		 3248 char *tmps;
3249#ifdef HAS_CHROOT
2d8e6c8d
GS		 3250 STRLEN n_a;
3251 tmps = POPpx;
a0d0e21e
LW		 3252 TAINT_PROPER("chroot");
3253 PUSHi( chroot(tmps) >= 0 );
3254 RETURN;
3255#else
cea2e8a9 3256 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3257#endif
3258}
3259
3260PP(pp_unlink)
3261{
4e35701f 3262 djSP; dMARK; dTARGET;
a0d0e21e 3263 I32 value;
533c011a 3264 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3265 SP = MARK;
3266 PUSHi(value);
3267 RETURN;
3268}
3269
3270PP(pp_chmod)
3271{
4e35701f 3272 djSP; dMARK; dTARGET;
a0d0e21e 3273 I32 value;
533c011a 3274 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3275 SP = MARK;
3276 PUSHi(value);
3277 RETURN;
3278}
3279
3280PP(pp_utime)
3281{
4e35701f 3282 djSP; dMARK; dTARGET;
a0d0e21e 3283 I32 value;
533c011a 3284 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3285 SP = MARK;
3286 PUSHi(value);
3287 RETURN;
3288}
3289
3290PP(pp_rename)
3291{
4e35701f 3292 djSP; dTARGET;
a0d0e21e 3293 int anum;
2d8e6c8d 3294 STRLEN n_a;
a0d0e21e 3295
2d8e6c8d
GS		 3296 char *tmps2 = POPpx;
3297 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3298 TAINT_PROPER("rename");
3299#ifdef HAS_RENAME
baed7233 3300 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3301#else
6b88bc9c 3302 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3303 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3304 anum = 1;
3305 else {
3654eb6c 3306 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3307 (void)UNLINK(tmps2);
3308 if (!(anum = link(tmps, tmps2)))
3309 anum = UNLINK(tmps);
3310 }
a0d0e21e
LW		 3311 }
3312#endif
3313 SETi( anum >= 0 );
3314 RETURN;
3315}
3316
3317PP(pp_link)
3318{
4e35701f 3319 djSP; dTARGET;
a0d0e21e 3320#ifdef HAS_LINK
2d8e6c8d
GS		 3321 STRLEN n_a;
3322 char *tmps2 = POPpx;
3323 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3324 TAINT_PROPER("link");
146174a9 3325 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3326#else
cea2e8a9 3327 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3328#endif
3329 RETURN;
3330}
3331
3332PP(pp_symlink)
3333{
4e35701f 3334 djSP; dTARGET;
a0d0e21e 3335#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3336 STRLEN n_a;
3337 char *tmps2 = POPpx;
3338 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3339 TAINT_PROPER("symlink");
3340 SETi( symlink(tmps, tmps2) >= 0 );
3341 RETURN;
3342#else
cea2e8a9 3343 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3344#endif
3345}
3346
3347PP(pp_readlink)
3348{
4e35701f 3349 djSP; dTARGET;
a0d0e21e
LW		 3350#ifdef HAS_SYMLINK
3351 char *tmps;
46fc3d4c 3352 char buf[MAXPATHLEN];
a0d0e21e 3353 int len;
2d8e6c8d 3354 STRLEN n_a;
46fc3d4c 3355
fb73857a 3356#ifndef INCOMPLETE_TAINTS
3357 TAINT;
3358#endif
2d8e6c8d 3359 tmps = POPpx;
a0d0e21e
LW		 3360 len = readlink(tmps, buf, sizeof buf);
3361 EXTEND(SP, 1);
3362 if (len < 0)
3363 RETPUSHUNDEF;
3364 PUSHp(buf, len);
3365 RETURN;
3366#else
3367 EXTEND(SP, 1);
3368 RETSETUNDEF; /* just pretend it's a normal file */
3369#endif
3370}
3371
3372#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3373STATIC int
cea2e8a9 3374S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3375{
1e422769 3376 char *save_filename = filename;
3377 char *cmdline;
3378 char *s;
760ac839 3379 PerlIO *myfp;
1e422769 3380 int anum = 1;
a0d0e21e 3381
1e422769 3382 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3383 strcpy(cmdline, cmd);
3384 strcat(cmdline, " ");
3385 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3386 *s++ = '\\';
3387 *s++ = *filename++;
3388 }
3389 strcpy(s, " 2>&1");
6ad3d225 3390 myfp = PerlProc_popen(cmdline, "r");
1e422769 3391 Safefree(cmdline);
3392
a0d0e21e 3393 if (myfp) {
1e422769 3394 SV *tmpsv = sv_newmortal();
6b88bc9c 3395 /* Need to save/restore 'PL_rs' ?? */
760ac839 3396 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3397 (void)PerlProc_pclose(myfp);
a0d0e21e 3398 if (s != Nullch) {
1e422769 3399 int e;
3400 for (e = 1;
a0d0e21e 3401#ifdef HAS_SYS_ERRLIST
1e422769 3402 e <= sys_nerr
3403#endif
3404 ; e++)
3405 {
3406 /* you don't see this */
3407 char *errmsg =
3408#ifdef HAS_SYS_ERRLIST
3409 sys_errlist[e]
a0d0e21e 3410#else
1e422769 3411 strerror(e)
a0d0e21e 3412#endif
1e422769 3413 ;
3414 if (!errmsg)
3415 break;
3416 if (instr(s, errmsg)) {
3417 SETERRNO(e,0);
3418 return 0;
3419 }
a0d0e21e 3420 }
748a9306 3421 SETERRNO(0,0);
a0d0e21e
LW		 3422#ifndef EACCES
3423#define EACCES EPERM
3424#endif
1e422769 3425 if (instr(s, "cannot make"))
748a9306 3426 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3427 else if (instr(s, "existing file"))
748a9306 3428 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3429 else if (instr(s, "ile exists"))
748a9306 3430 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3431 else if (instr(s, "non-exist"))
748a9306 3432 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3433 else if (instr(s, "does not exist"))
748a9306 3434 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3435 else if (instr(s, "not empty"))
748a9306 3436 SETERRNO(EBUSY,SS$_DEVOFFLINE);
1e422769 3437 else if (instr(s, "cannot access"))
748a9306 3438 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 3439 else
748a9306 3440 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 3441 return 0;
3442 }
3443 else { /* some mkdirs return no failure indication */
6b88bc9c 3444 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3445 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3446 anum = !anum;
3447 if (anum)
748a9306 3448 SETERRNO(0,0);
a0d0e21e 3449 else
748a9306 3450 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 3451 }
3452 return anum;
3453 }
3454 else
3455 return 0;
3456}
3457#endif
3458
3459PP(pp_mkdir)
3460{
4e35701f 3461 djSP; dTARGET;
5a211162 3462 int mode;
a0d0e21e
LW		 3463#ifndef HAS_MKDIR
3464 int oldumask;
3465#endif
2d8e6c8d 3466 STRLEN n_a;
5a211162
GS		 3467 char *tmps;
3468
3469 if (MAXARG > 1)
3470 mode = POPi;
3471 else
3472 mode = 0777;
3473
3474 tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3475
3476 TAINT_PROPER("mkdir");
3477#ifdef HAS_MKDIR
6ad3d225 3478 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3479#else
3480 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3481 oldumask = PerlLIO_umask(0);
3482 PerlLIO_umask(oldumask);
3483 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e
LW		 3484#endif
3485 RETURN;
3486}
3487
3488PP(pp_rmdir)
3489{
4e35701f 3490 djSP; dTARGET;
a0d0e21e 3491 char *tmps;
2d8e6c8d 3492 STRLEN n_a;
a0d0e21e 3493
2d8e6c8d 3494 tmps = POPpx;
a0d0e21e
LW		 3495 TAINT_PROPER("rmdir");
3496#ifdef HAS_RMDIR
6ad3d225 3497 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e
LW		 3498#else
3499 XPUSHi( dooneliner("rmdir", tmps) );
3500#endif
3501 RETURN;
3502}
3503
3504/* Directory calls. */
3505
3506PP(pp_open_dir)
3507{
4e35701f 3508 djSP;
a0d0e21e 3509#if defined(Direntry_t) && defined(HAS_READDIR)
2d8e6c8d
GS		 3510 STRLEN n_a;
3511 char *dirname = POPpx;
a0d0e21e
LW		 3512 GV *gv = (GV*)POPs;
3513 register IO *io = GvIOn(gv);
3514
3515 if (!io)
3516 goto nope;
3517
3518 if (IoDIRP(io))
6ad3d225
GS		 3519 PerlDir_close(IoDIRP(io));
3520 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3521 goto nope;
3522
3523 RETPUSHYES;
3524nope:
3525 if (!errno)
748a9306 3526 SETERRNO(EBADF,RMS$_DIR);
a0d0e21e
LW		 3527 RETPUSHUNDEF;
3528#else
cea2e8a9 3529 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3530#endif
3531}
3532
3533PP(pp_readdir)
3534{
4e35701f 3535 djSP;
a0d0e21e
LW		 3536#if defined(Direntry_t) && defined(HAS_READDIR)
3537#ifndef I_DIRENT
20ce7b12 3538 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3539#endif
3540 register Direntry_t *dp;
3541 GV *gv = (GV*)POPs;
3542 register IO *io = GvIOn(gv);
fb73857a 3543 SV *sv;
a0d0e21e
LW		 3544
3545 if (!io || !IoDIRP(io))
3546 goto nope;
3547
3548 if (GIMME == G_ARRAY) {
3549 /*SUPPRESS 560*/
155aba94 3550 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3551#ifdef DIRNAMLEN
79cb57f6 3552 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3553#else
fb73857a 3554 sv = newSVpv(dp->d_name, 0);
3555#endif
3556#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3557 if (!(IoFLAGS(io) & IOf_UNTAINT))
3558 SvTAINTED_on(sv);
a0d0e21e 3559#endif
fb73857a 3560 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3561 }
3562 }
3563 else {
6ad3d225 3564 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
a0d0e21e
LW		 3565 goto nope;
3566#ifdef DIRNAMLEN
79cb57f6 3567 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3568#else
fb73857a 3569 sv = newSVpv(dp->d_name, 0);
a0d0e21e 3570#endif
fb73857a 3571#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3572 if (!(IoFLAGS(io) & IOf_UNTAINT))
3573 SvTAINTED_on(sv);
fb73857a 3574#endif