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[perl5.git] / pp_sys.c
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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;
6aa016ca 511 SV *name = Nullsv;
6170680b 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 614 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 615 IoTYPE(rstio) = IoTYPE_RDONLY;
616 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 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
cbdc8872 811 MAGIC * mg ;
155aba94 812 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 813 SV *obj = SvRV(mg->mg_obj);
814 GV *gv;
815 CV *cv = NULL;
816 if (ckWARN(WARN_UNTIE)) {
817 if (mg && SvREFCNT(obj) > 1)
cf2093f6 818 Perl_warner(aTHX_ WARN_UNTIE,
146174a9 819 "untie attempted while %"UVuf" inner references still exist",
a29a5827
NIS		 820 (UV)SvREFCNT(obj) - 1 ) ;
821 }
822 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
823 isGV(gv) && (cv = GvCV(gv))) {
824 PUSHMARK(SP);
825 XPUSHs(SvTIED_obj((SV*)gv, mg));
826 PUTBACK;
827 ENTER;
828 call_sv((SV *)cv, G_VOID);
829 LEAVE;
830 SPAGAIN;
cbdc8872 831 }
832 }
33c27489 833 sv_unmagic(sv, how);
55497cff 834 RETPUSHYES;
a0d0e21e
LW		 835}
836
c07a80fd 837PP(pp_tied)
838{
4e35701f 839 djSP;
33c27489
GS		 840 SV *sv = POPs;
841 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
842 MAGIC *mg;
c07a80fd 843
155aba94 844 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 845 SV *osv = SvTIED_obj(sv, mg);
846 if (osv == mg->mg_obj)
847 osv = sv_mortalcopy(osv);
848 PUSHs(osv);
849 RETURN;
c07a80fd 850 }
c07a80fd 851 RETPUSHUNDEF;
852}
853
a0d0e21e
LW		 854PP(pp_dbmopen)
855{
4e35701f 856 djSP;
a0d0e21e
LW		 857 HV *hv;
858 dPOPPOPssrl;
859 HV* stash;
860 GV *gv;
a0d0e21e
LW		 861 SV *sv;
862
863 hv = (HV*)POPs;
864
3280af22 865 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 866 sv_setpv(sv, "AnyDBM_File");
867 stash = gv_stashsv(sv, FALSE);
8ebc5c01 868 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 869 PUTBACK;
864dbfa3 870 require_pv("AnyDBM_File.pm");
a0d0e21e 871 SPAGAIN;
8ebc5c01 872 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 873 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 874 }
875
57d3b86d 876 ENTER;
924508f0 877 PUSHMARK(SP);
6b05c17a 878
924508f0 879 EXTEND(SP, 5);
a0d0e21e
LW		 880 PUSHs(sv);
881 PUSHs(left);
882 if (SvIV(right))
b448e4fe 883 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 884 else
b448e4fe 885 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 886 PUSHs(right);
57d3b86d 887 PUTBACK;
864dbfa3 888 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 889 SPAGAIN;
890
891 if (!sv_isobject(TOPs)) {
924508f0
GS		 892 SP--;
893 PUSHMARK(SP);
a0d0e21e
LW		 894 PUSHs(sv);
895 PUSHs(left);
b448e4fe 896 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 897 PUSHs(right);
a0d0e21e 898 PUTBACK;
864dbfa3 899 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 900 SPAGAIN;
901 }
902
6b05c17a
NIS		 903 if (sv_isobject(TOPs)) {
904 sv_unmagic((SV *) hv, 'P');
a0d0e21e 905 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 906 }
a0d0e21e
LW		 907 LEAVE;
908 RETURN;
909}
910
911PP(pp_dbmclose)
912{
cea2e8a9 913 return pp_untie();
a0d0e21e
LW		 914}
915
916PP(pp_sselect)
917{
4e35701f 918 djSP; dTARGET;
a0d0e21e
LW		 919#ifdef HAS_SELECT
920 register I32 i;
921 register I32 j;
922 register char *s;
923 register SV *sv;
65202027 924 NV value;
a0d0e21e
LW		 925 I32 maxlen = 0;
926 I32 nfound;
927 struct timeval timebuf;
928 struct timeval *tbuf = &timebuf;
929 I32 growsize;
930 char *fd_sets[4];
2d8e6c8d 931 STRLEN n_a;
a0d0e21e
LW		 932#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
933 I32 masksize;
934 I32 offset;
935 I32 k;
936
937# if BYTEORDER & 0xf0000
938# define ORDERBYTE (0x88888888 - BYTEORDER)
939# else
940# define ORDERBYTE (0x4444 - BYTEORDER)
941# endif
942
943#endif
944
945 SP -= 4;
946 for (i = 1; i <= 3; i++) {
947 if (!SvPOK(SP[i]))
948 continue;
949 j = SvCUR(SP[i]);
950 if (maxlen < j)
951 maxlen = j;
952 }
953
5ff3f7a4 954/* little endians can use vecs directly */
a0d0e21e 955#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 956# if SELECT_MIN_BITS > 1
f2da832e
JH		 957 /* If SELECT_MIN_BITS is greater than one we most probably will want
958 * to align the sizes with SELECT_MIN_BITS/8 because for example
959 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 960 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 961 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 962 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 963# else
4633a7c4 964 growsize = sizeof(fd_set);
5ff3f7a4
GS		 965# endif
966# else
967# ifdef NFDBITS
a0d0e21e 968
5ff3f7a4
GS		 969# ifndef NBBY
970# define NBBY 8
971# endif
a0d0e21e
LW		 972
973 masksize = NFDBITS / NBBY;
5ff3f7a4 974# else
a0d0e21e 975 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 976# endif
a0d0e21e
LW		 977 growsize = maxlen + (masksize - (maxlen % masksize));
978 Zero(&fd_sets[0], 4, char*);
979#endif
980
981 sv = SP[4];
982 if (SvOK(sv)) {
983 value = SvNV(sv);
984 if (value < 0.0)
985 value = 0.0;
986 timebuf.tv_sec = (long)value;
65202027 987 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 988 timebuf.tv_usec = (long)(value * 1000000.0);
989 }
990 else
991 tbuf = Null(struct timeval*);
992
993 for (i = 1; i <= 3; i++) {
994 sv = SP[i];
995 if (!SvOK(sv)) {
996 fd_sets[i] = 0;
997 continue;
998 }
999 else if (!SvPOK(sv))
2d8e6c8d 1000 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1001 j = SvLEN(sv);
1002 if (j < growsize) {
1003 Sv_Grow(sv, growsize);
a0d0e21e 1004 }
c07a80fd 1005 j = SvCUR(sv);
1006 s = SvPVX(sv) + j;
1007 while (++j <= growsize) {
1008 *s++ = '\0';
1009 }
1010
a0d0e21e
LW		 1011#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1012 s = SvPVX(sv);
1013 New(403, fd_sets[i], growsize, char);
1014 for (offset = 0; offset < growsize; offset += masksize) {
1015 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1016 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1017 }
1018#else
1019 fd_sets[i] = SvPVX(sv);
1020#endif
1021 }
1022
6ad3d225 1023 nfound = PerlSock_select(
a0d0e21e
LW		 1024 maxlen * 8,
1025 (Select_fd_set_t) fd_sets[1],
1026 (Select_fd_set_t) fd_sets[2],
1027 (Select_fd_set_t) fd_sets[3],
1028 tbuf);
1029 for (i = 1; i <= 3; i++) {
1030 if (fd_sets[i]) {
1031 sv = SP[i];
1032#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1033 s = SvPVX(sv);
1034 for (offset = 0; offset < growsize; offset += masksize) {
1035 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1036 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1037 }
1038 Safefree(fd_sets[i]);
1039#endif
1040 SvSETMAGIC(sv);
1041 }
1042 }
1043
1044 PUSHi(nfound);
1045 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1046 value = (NV)(timebuf.tv_sec) +
1047 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1048 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1049 sv_setnv(sv, value);
1050 }
1051 RETURN;
1052#else
cea2e8a9 1053 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1054#endif
1055}
1056
4633a7c4 1057void
864dbfa3 1058Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1059{
11343788 1060 dTHR;
4633a7c4
LW		 1061 if (gv)
1062 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1063 if (PL_defoutgv)
1064 SvREFCNT_dec(PL_defoutgv);
1065 PL_defoutgv = gv;
4633a7c4
LW		 1066}
1067
a0d0e21e
LW		 1068PP(pp_select)
1069{
4e35701f 1070 djSP; dTARGET;
4633a7c4
LW		 1071 GV *newdefout, *egv;
1072 HV *hv;
1073
533c011a 1074 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1075
3280af22 1076 egv = GvEGV(PL_defoutgv);
4633a7c4 1077 if (!egv)
3280af22 1078 egv = PL_defoutgv;
4633a7c4
LW		 1079 hv = GvSTASH(egv);
1080 if (! hv)
3280af22 1081 XPUSHs(&PL_sv_undef);
4633a7c4 1082 else {
cbdc8872 1083 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1084 if (gvp && *gvp == egv) {
43693395 1085 gv_efullname4(TARG, PL_defoutgv, Nullch, FALSE);
f86702cc 1086 XPUSHTARG;
1087 }
1088 else {
1089 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1090 }
4633a7c4
LW		 1091 }
1092
1093 if (newdefout) {
ded8aa31
GS		 1094 if (!GvIO(newdefout))
1095 gv_IOadd(newdefout);
4633a7c4
LW		 1096 setdefout(newdefout);
1097 }
1098
a0d0e21e
LW		 1099 RETURN;
1100}
1101
1102PP(pp_getc)
1103{
4e35701f 1104 djSP; dTARGET;
a0d0e21e 1105 GV *gv;
2ae324a7 1106 MAGIC *mg;
a0d0e21e 1107
32da55ab 1108 if (MAXARG == 0)
3280af22 1109 gv = PL_stdingv;
a0d0e21e
LW		 1110 else
1111 gv = (GV*)POPs;
2ae324a7 1112
155aba94 1113 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1114 I32 gimme = GIMME_V;
2ae324a7 1115 PUSHMARK(SP);
33c27489 1116 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1117 PUTBACK;
1118 ENTER;
864dbfa3 1119 call_method("GETC", gimme);
2ae324a7 1120 LEAVE;
1121 SPAGAIN;
54310121 1122 if (gimme == G_SCALAR)
1123 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1124 RETURN;
1125 }
9bc64814 1126 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1127 RETPUSHUNDEF;
bbce6d69 1128 TAINT;
a0d0e21e 1129 sv_setpv(TARG, " ");
9bc64814 1130 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
a0d0e21e
LW		 1131 PUSHTARG;
1132 RETURN;
1133}
1134
1135PP(pp_read)
1136{
cea2e8a9 1137 return pp_sysread();
a0d0e21e
LW		 1138}
1139
76e3520e 1140STATIC OP *
cea2e8a9 1141S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1142{
11343788 1143 dTHR;
c09156bb 1144 register PERL_CONTEXT *cx;
54310121 1145 I32 gimme = GIMME_V;
a0d0e21e
LW		 1146 AV* padlist = CvPADLIST(cv);
1147 SV** svp = AvARRAY(padlist);
1148
1149 ENTER;
1150 SAVETMPS;
1151
1152 push_return(retop);
146174a9 1153 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1154 PUSHFORMAT(cx);
146174a9 1155 SAVEVPTR(PL_curpad);
3280af22 1156 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1157
4633a7c4 1158 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1159 return CvSTART(cv);
1160}
1161
1162PP(pp_enterwrite)
1163{
4e35701f 1164 djSP;
a0d0e21e
LW		 1165 register GV *gv;
1166 register IO *io;
1167 GV *fgv;
1168 CV *cv;
1169
1170 if (MAXARG == 0)
3280af22 1171 gv = PL_defoutgv;
a0d0e21e
LW		 1172 else {
1173 gv = (GV*)POPs;
1174 if (!gv)
3280af22 1175 gv = PL_defoutgv;
a0d0e21e
LW		 1176 }
1177 EXTEND(SP, 1);
1178 io = GvIO(gv);
1179 if (!io) {
1180 RETPUSHNO;
1181 }
1182 if (IoFMT_GV(io))
1183 fgv = IoFMT_GV(io);
1184 else
1185 fgv = gv;
1186
1187 cv = GvFORM(fgv);
a0d0e21e 1188 if (!cv) {
2dd78f96 1189 char *name = NULL;
a0d0e21e 1190 if (fgv) {
748a9306 1191 SV *tmpsv = sv_newmortal();
43693395 1192 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1193 name = SvPV_nolen(tmpsv);
a0d0e21e 1194 }
2dd78f96
JH		 1195 if (name && *name)
1196 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1197 DIE(aTHX_ "Not a format reference");
a0d0e21e 1198 }
44a8e56a 1199 if (CvCLONE(cv))
1200 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1201
44a8e56a 1202 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1203 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1204}
1205
1206PP(pp_leavewrite)
1207{
4e35701f 1208 djSP;
a0d0e21e
LW		 1209 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1210 register IO *io = GvIOp(gv);
760ac839
LW		 1211 PerlIO *ofp = IoOFP(io);
1212 PerlIO *fp;
a0d0e21e
LW		 1213 SV **newsp;
1214 I32 gimme;
c09156bb 1215 register PERL_CONTEXT *cx;
a0d0e21e 1216
760ac839 1217 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22
NIS		 1218 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1219 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1220 PL_formtarget != PL_toptarget)
a0d0e21e 1221 {
4633a7c4
LW		 1222 GV *fgv;
1223 CV *cv;
a0d0e21e
LW		 1224 if (!IoTOP_GV(io)) {
1225 GV *topgv;
46fc3d4c 1226 SV *topname;
a0d0e21e
LW		 1227
1228 if (!IoTOP_NAME(io)) {
1229 if (!IoFMT_NAME(io))
1230 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1231 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1232 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1233 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1234 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1235 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1236 else
1237 IoTOP_NAME(io) = savepv("top");
1238 }
1239 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1240 if (!topgv || !GvFORM(topgv)) {
1241 IoLINES_LEFT(io) = 100000000;
1242 goto forget_top;
1243 }
1244 IoTOP_GV(io) = topgv;
1245 }
748a9306
LW		 1246 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1247 I32 lines = IoLINES_LEFT(io);
3280af22 1248 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1249 if (lines <= 0) /* Yow, header didn't even fit!!! */
1250 goto forget_top;
748a9306
LW		 1251 while (lines-- > 0) {
1252 s = strchr(s, '\n');
1253 if (!s)
1254 break;
1255 s++;
1256 }
1257 if (s) {
3280af22
NIS		 1258 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1259 sv_chop(PL_formtarget, s);
1260 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1261 }
1262 }
a0d0e21e 1263 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
3280af22 1264 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
a0d0e21e
LW		 1265 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1266 IoPAGE(io)++;
3280af22 1267 PL_formtarget = PL_toptarget;
748a9306 1268 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1269 fgv = IoTOP_GV(io);
1270 if (!fgv)
cea2e8a9 1271 DIE(aTHX_ "bad top format reference");
4633a7c4 1272 cv = GvFORM(fgv);
2dd78f96
JH		 1273 {
1274 char *name = NULL;
1275 if (!cv) {
1276 SV *sv = sv_newmortal();
1277 gv_efullname4(sv, fgv, Nullch, FALSE);
1278 name = SvPV_nolen(sv);
1279 }
1280 if (name && *name)
1281 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1282 /* why no:
1283 else
1284 DIE(aTHX_ "Undefined top format called");
1285 ?*/
4633a7c4 1286 }
44a8e56a 1287 if (CvCLONE(cv))
1288 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1289 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1290 }
1291
1292 forget_top:
3280af22 1293 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1294 POPFORMAT(cx);
1295 LEAVE;
1296
1297 fp = IoOFP(io);
1298 if (!fp) {
599cee73 1299 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1300 if (IoIFP(io)) {
2dd78f96
JH		 1301 /* integrate with report_evil_fh()? */
1302 char *name = NULL;
1303 if (isGV(gv)) {
1304 SV* sv = sv_newmortal();
1305 gv_efullname4(sv, gv, Nullch, FALSE);
1306 name = SvPV_nolen(sv);
1307 }
1308 if (name && *name)
1309 Perl_warner(aTHX_ WARN_IO,
1310 "Filehandle %s opened only for input", name);
1311 else
1312 Perl_warner(aTHX_ WARN_IO,
1313 "Filehandle opened only for input");
cb50131a 1314 }
599cee73 1315 else if (ckWARN(WARN_CLOSED))
bc37a18f 1316 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1317 }
3280af22 1318 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1319 }
1320 else {
3280af22 1321 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1322 if (ckWARN(WARN_IO))
cea2e8a9 1323 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1324 }
3280af22 1325 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
760ac839 1326 PerlIO_error(fp))
3280af22 1327 PUSHs(&PL_sv_no);
a0d0e21e 1328 else {
3280af22
NIS		 1329 FmLINES(PL_formtarget) = 0;
1330 SvCUR_set(PL_formtarget, 0);
1331 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1332 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1333 (void)PerlIO_flush(fp);
3280af22 1334 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1335 }
1336 }
3280af22 1337 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1338 PUTBACK;
1339 return pop_return();
1340}
1341
1342PP(pp_prtf)
1343{
4e35701f 1344 djSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1345 GV *gv;
1346 IO *io;
760ac839 1347 PerlIO *fp;
26db47c4 1348 SV *sv;
46fc3d4c 1349 MAGIC *mg;
2d8e6c8d 1350 STRLEN n_a;
a0d0e21e 1351
533c011a 1352 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1353 gv = (GV*)*++MARK;
1354 else
3280af22 1355 gv = PL_defoutgv;
46fc3d4c 1356
155aba94 1357 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1358 if (MARK == ORIGMARK) {
4352c267 1359 MEXTEND(SP, 1);
46fc3d4c 1360 ++MARK;
1361 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1362 ++SP;
1363 }
1364 PUSHMARK(MARK - 1);
33c27489 1365 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1366 PUTBACK;
1367 ENTER;
864dbfa3 1368 call_method("PRINTF", G_SCALAR);
46fc3d4c 1369 LEAVE;
1370 SPAGAIN;
1371 MARK = ORIGMARK + 1;
1372 *MARK = *SP;
1373 SP = MARK;
1374 RETURN;
1375 }
1376
26db47c4 1377 sv = NEWSV(0,0);
a0d0e21e 1378 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1379 dTHR;
1380 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1381 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1382 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1383 goto just_say_no;
1384 }
1385 else if (!(fp = IoOFP(io))) {
599cee73 1386 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1387 /* integrate with report_evil_fh()? */
cb50131a 1388 if (IoIFP(io)) {
2dd78f96
JH		 1389 char *name = NULL;
1390 if (isGV(gv)) {
1391 gv_efullname4(sv, gv, Nullch, FALSE);
1392 name = SvPV_nolen(sv);
1393 }
1394 if (name && *name)
1395 Perl_warner(aTHX_ WARN_IO,
1396 "Filehandle %s opened only for input", name);
1397 else
1398 Perl_warner(aTHX_ WARN_IO,
1399 "Filehandle opened only for input");
cb50131a 1400 }
599cee73 1401 else if (ckWARN(WARN_CLOSED))
bc37a18f 1402 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1403 }
748a9306 1404 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1405 goto just_say_no;
1406 }
1407 else {
1408 do_sprintf(sv, SP - MARK, MARK + 1);
1409 if (!do_print(sv, fp))
1410 goto just_say_no;
1411
1412 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1413 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1414 goto just_say_no;
1415 }
1416 SvREFCNT_dec(sv);
1417 SP = ORIGMARK;
3280af22 1418 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1419 RETURN;
1420
1421 just_say_no:
1422 SvREFCNT_dec(sv);
1423 SP = ORIGMARK;
3280af22 1424 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1425 RETURN;
1426}
1427
c07a80fd 1428PP(pp_sysopen)
1429{
4e35701f 1430 djSP;
c07a80fd 1431 GV *gv;
c07a80fd 1432 SV *sv;
1433 char *tmps;
1434 STRLEN len;
1435 int mode, perm;
1436
1437 if (MAXARG > 3)
1438 perm = POPi;
1439 else
1440 perm = 0666;
1441 mode = POPi;
1442 sv = POPs;
1443 gv = (GV *)POPs;
1444
4592e6ca
NIS		 1445 /* Need TIEHANDLE method ? */
1446
c07a80fd 1447 tmps = SvPV(sv, len);
1448 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1449 IoLINES(GvIOp(gv)) = 0;
3280af22 1450 PUSHs(&PL_sv_yes);
c07a80fd 1451 }
1452 else {
3280af22 1453 PUSHs(&PL_sv_undef);
c07a80fd 1454 }
1455 RETURN;
1456}
1457
a0d0e21e
LW		 1458PP(pp_sysread)
1459{
4e35701f 1460 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1461 int offset;
1462 GV *gv;
1463 IO *io;
1464 char *buffer;
5b54f415 1465 SSize_t length;
1e422769 1466 Sock_size_t bufsize;
748a9306 1467 SV *bufsv;
a0d0e21e 1468 STRLEN blen;
2ae324a7 1469 MAGIC *mg;
a0d0e21e
LW		 1470
1471 gv = (GV*)*++MARK;
533c011a 1472 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1473 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1474 {
2ae324a7 1475 SV *sv;
1476
1477 PUSHMARK(MARK-1);
33c27489 1478 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1479 ENTER;
864dbfa3 1480 call_method("READ", G_SCALAR);
2ae324a7 1481 LEAVE;
1482 SPAGAIN;
1483 sv = POPs;
1484 SP = ORIGMARK;
1485 PUSHs(sv);
1486 RETURN;
1487 }
1488
a0d0e21e
LW		 1489 if (!gv)
1490 goto say_undef;
748a9306 1491 bufsv = *++MARK;
ff68c719 1492 if (! SvOK(bufsv))
1493 sv_setpvn(bufsv, "", 0);
748a9306 1494 buffer = SvPV_force(bufsv, blen);
a0d0e21e
LW		 1495 length = SvIVx(*++MARK);
1496 if (length < 0)
cea2e8a9 1497 DIE(aTHX_ "Negative length");
748a9306 1498 SETERRNO(0,0);
a0d0e21e
LW		 1499 if (MARK < SP)
1500 offset = SvIVx(*++MARK);
1501 else
1502 offset = 0;
1503 io = GvIO(gv);
1504 if (!io || !IoIFP(io))
1505 goto say_undef;
1506#ifdef HAS_SOCKET
533c011a 1507 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1508 char namebuf[MAXPATHLEN];
eec2d3df 1509#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1510 bufsize = sizeof (struct sockaddr_in);
1511#else
46fc3d4c 1512 bufsize = sizeof namebuf;
490ab354 1513#endif
abf95952
IZ		 1514#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1515 if (bufsize >= 256)
1516 bufsize = 255;
1517#endif
626727d5
GS		 1518#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1519 if (bufsize >= 256)
1520 bufsize = 255;
1521#endif
748a9306 1522 buffer = SvGROW(bufsv, length+1);
bbce6d69 1523 /* 'offset' means 'flags' here */
6ad3d225 1524 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1525 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1526 if (length < 0)
1527 RETPUSHUNDEF;
748a9306
LW		 1528 SvCUR_set(bufsv, length);
1529 *SvEND(bufsv) = '\0';
1530 (void)SvPOK_only(bufsv);
1531 SvSETMAGIC(bufsv);
aac0dd9a 1532 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1533 if (!(IoFLAGS(io) & IOf_UNTAINT))
1534 SvTAINTED_on(bufsv);
a0d0e21e 1535 SP = ORIGMARK;
46fc3d4c 1536 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1537 PUSHs(TARG);
1538 RETURN;
1539 }
1540#else
911d147d 1541 if (PL_op->op_type == OP_RECV)
cea2e8a9 1542 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1543#endif
bbce6d69 1544 if (offset < 0) {
1545 if (-offset > blen)
cea2e8a9 1546 DIE(aTHX_ "Offset outside string");
bbce6d69 1547 offset += blen;
1548 }
cd52b7b2 1549 bufsize = SvCUR(bufsv);
748a9306 1550 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1551 if (offset > bufsize) { /* Zero any newly allocated space */
1552 Zero(buffer+bufsize, offset-bufsize, char);
1553 }
533c011a 1554 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1555#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1556 if (IoTYPE(io) == IoTYPE_SOCKET) {
a7092146
GS		 1557 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1558 buffer+offset, length, 0);
1559 }
1560 else
1561#endif
1562 {
1563 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1564 buffer+offset, length);
1565 }
a0d0e21e
LW		 1566 }
1567 else
1568#ifdef HAS_SOCKET__bad_code_maybe
50952442 1569 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1570 char namebuf[MAXPATHLEN];
490ab354
JH		 1571#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1572 bufsize = sizeof (struct sockaddr_in);
1573#else
46fc3d4c 1574 bufsize = sizeof namebuf;
490ab354 1575#endif
6ad3d225 1576 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
46fc3d4c 1577 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1578 }
1579 else
1580#endif
3b02c43c 1581 {
760ac839 1582 length = PerlIO_read(IoIFP(io), buffer+offset, length);
3b02c43c 1583 /* fread() returns 0 on both error and EOF */
5c7a8c78 1584 if (length == 0 && PerlIO_error(IoIFP(io)))
3b02c43c
GS		 1585 length = -1;
1586 }
af8c498a 1587 if (length < 0) {
50952442 1588 if ((IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout()
c529f79d 1589 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
af8c498a 1590 {
2dd78f96
JH		 1591 /* integrate with report_evil_fh()? */
1592 char *name = NULL;
1593 if (isGV(gv)) {
1594 SV* sv = sv_newmortal();
1595 gv_efullname4(sv, gv, Nullch, FALSE);
1596 name = SvPV_nolen(sv);
1597 }
1598 if (name && *name)
1599 Perl_warner(aTHX_ WARN_IO,
1600 "Filehandle %s opened only for output", name);
1601 else
1602 Perl_warner(aTHX_ WARN_IO,
1603 "Filehandle opened only for output");
af8c498a 1604 }
a0d0e21e 1605 goto say_undef;
af8c498a 1606 }
748a9306
LW		 1607 SvCUR_set(bufsv, length+offset);
1608 *SvEND(bufsv) = '\0';
1609 (void)SvPOK_only(bufsv);
1610 SvSETMAGIC(bufsv);
aac0dd9a 1611 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1612 if (!(IoFLAGS(io) & IOf_UNTAINT))
1613 SvTAINTED_on(bufsv);
a0d0e21e
LW		 1614 SP = ORIGMARK;
1615 PUSHi(length);
1616 RETURN;
1617
1618 say_undef:
1619 SP = ORIGMARK;
1620 RETPUSHUNDEF;
1621}
1622
1623PP(pp_syswrite)
1624{
092bebab
JH		 1625 djSP;
1626 int items = (SP - PL_stack_base) - TOPMARK;
1627 if (items == 2) {
9f089d78 1628 SV *sv;
092bebab 1629 EXTEND(SP, 1);
9f089d78
SB		 1630 sv = sv_2mortal(newSViv(sv_len(*SP)));
1631 PUSHs(sv);
092bebab
JH		 1632 PUTBACK;
1633 }
cea2e8a9 1634 return pp_send();
a0d0e21e
LW		 1635}
1636
1637PP(pp_send)
1638{
4e35701f 1639 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1640 GV *gv;
1641 IO *io;
748a9306 1642 SV *bufsv;
a0d0e21e 1643 char *buffer;
8c99d73e
GS		 1644 Size_t length;
1645 SSize_t retval;
1646 IV offset;
a0d0e21e 1647 STRLEN blen;
1d603a67 1648 MAGIC *mg;
a0d0e21e
LW		 1649
1650 gv = (GV*)*++MARK;
33c27489 1651 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1652 SV *sv;
1653
1654 PUSHMARK(MARK-1);
33c27489 1655 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1656 ENTER;
864dbfa3 1657 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1658 LEAVE;
1659 SPAGAIN;
1660 sv = POPs;
1661 SP = ORIGMARK;
1662 PUSHs(sv);
1663 RETURN;
1664 }
a0d0e21e
LW		 1665 if (!gv)
1666 goto say_undef;
748a9306
LW		 1667 bufsv = *++MARK;
1668 buffer = SvPV(bufsv, blen);
8c99d73e 1669#if Size_t_size > IVSIZE
3c001241 1670 length = (Size_t)SvNVx(*++MARK);
146174a9 1671#else
3c001241 1672 length = (Size_t)SvIVx(*++MARK);
146174a9 1673#endif
3c001241 1674 if ((SSize_t)length < 0)
cea2e8a9 1675 DIE(aTHX_ "Negative length");
748a9306 1676 SETERRNO(0,0);
a0d0e21e
LW		 1677 io = GvIO(gv);
1678 if (!io || !IoIFP(io)) {
8c99d73e 1679 retval = -1;
bc37a18f
RG		 1680 if (ckWARN(WARN_CLOSED))
1681 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1682 }
533c011a 1683 else if (PL_op->op_type == OP_SYSWRITE) {
bbce6d69 1684 if (MARK < SP) {
a0d0e21e 1685 offset = SvIVx(*++MARK);
bbce6d69 1686 if (offset < 0) {
1687 if (-offset > blen)
cea2e8a9 1688 DIE(aTHX_ "Offset outside string");
bbce6d69 1689 offset += blen;
fb73857a 1690 } else if (offset >= blen && blen > 0)
cea2e8a9 1691 DIE(aTHX_ "Offset outside string");
bbce6d69 1692 } else
a0d0e21e
LW		 1693 offset = 0;
1694 if (length > blen - offset)
1695 length = blen - offset;
a7092146 1696#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1697 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1698 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1699 buffer+offset, length, 0);
1700 }
1701 else
1702#endif
1703 {
94e4c244 1704 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1705 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1706 buffer+offset, length);
1707 }
a0d0e21e
LW		 1708 }
1709#ifdef HAS_SOCKET
1710 else if (SP > MARK) {
1711 char *sockbuf;
1712 STRLEN mlen;
1713 sockbuf = SvPVx(*++MARK, mlen);
8c99d73e
GS		 1714 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1715 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1716 }
1717 else
8c99d73e 1718 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
490ab354 1719
a0d0e21e
LW		 1720#else
1721 else
cea2e8a9 1722 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1723#endif
8c99d73e 1724 if (retval < 0)
a0d0e21e
LW		 1725 goto say_undef;
1726 SP = ORIGMARK;
8c99d73e
GS		 1727#if Size_t_size > IVSIZE
1728 PUSHn(retval);
1729#else
1730 PUSHi(retval);
1731#endif
a0d0e21e
LW		 1732 RETURN;
1733
1734 say_undef:
1735 SP = ORIGMARK;
1736 RETPUSHUNDEF;
1737}
1738
1739PP(pp_recv)
1740{
cea2e8a9 1741 return pp_sysread();
a0d0e21e
LW		 1742}
1743
1744PP(pp_eof)
1745{
4e35701f 1746 djSP;
a0d0e21e 1747 GV *gv;
4592e6ca 1748 MAGIC *mg;
a0d0e21e 1749
32da55ab 1750 if (MAXARG == 0) {
146174a9
CB		 1751 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1752 IO *io;
1753 gv = PL_last_in_gv = PL_argvgv;
1754 io = GvIO(gv);
1755 if (io && !IoIFP(io)) {
1756 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1757 IoLINES(io) = 0;
1758 IoFLAGS(io) &= ~IOf_START;
1759 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1760 sv_setpvn(GvSV(gv), "-", 1);
1761 SvSETMAGIC(GvSV(gv));
1762 }
1763 else if (!nextargv(gv))
1764 RETPUSHYES;
1765 }
1766 }
1767 else
1768 gv = PL_last_in_gv; /* eof */
1769 }
a0d0e21e 1770 else
146174a9 1771 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1772
1773 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1774 PUSHMARK(SP);
1775 XPUSHs(SvTIED_obj((SV*)gv, mg));
1776 PUTBACK;
1777 ENTER;
864dbfa3 1778 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1779 LEAVE;
1780 SPAGAIN;
1781 RETURN;
1782 }
1783
54310121 1784 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1785 RETURN;
1786}
1787
1788PP(pp_tell)
1789{
4e35701f 1790 djSP; dTARGET;
4592e6ca
NIS		 1791 GV *gv;
1792 MAGIC *mg;
a0d0e21e 1793
32da55ab 1794 if (MAXARG == 0)
3280af22 1795 gv = PL_last_in_gv;
a0d0e21e 1796 else
3280af22 1797 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1798
1799 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1800 PUSHMARK(SP);
1801 XPUSHs(SvTIED_obj((SV*)gv, mg));
1802 PUTBACK;
1803 ENTER;
864dbfa3 1804 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1805 LEAVE;
1806 SPAGAIN;
1807 RETURN;
1808 }
1809
146174a9
CB		 1810#if LSEEKSIZE > IVSIZE
1811 PUSHn( do_tell(gv) );
1812#else
a0d0e21e 1813 PUSHi( do_tell(gv) );
146174a9 1814#endif
a0d0e21e
LW		 1815 RETURN;
1816}
1817
1818PP(pp_seek)
1819{
cea2e8a9 1820 return pp_sysseek();
137443ea 1821}
1822
1823PP(pp_sysseek)
1824{
4e35701f 1825 djSP;
a0d0e21e
LW		 1826 GV *gv;
1827 int whence = POPi;
146174a9
CB		 1828#if LSEEKSIZE > IVSIZE
1829 Off_t offset = (Off_t)SvNVx(POPs);
1830#else
d9b3e12d 1831 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1832#endif
4592e6ca 1833 MAGIC *mg;
a0d0e21e 1834
3280af22 1835 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1836
1837 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1838 PUSHMARK(SP);
1839 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1840#if LSEEKSIZE > IVSIZE
1841 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1842#else
b448e4fe 1843 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1844#endif
b448e4fe 1845 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1846 PUTBACK;
1847 ENTER;
864dbfa3 1848 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1849 LEAVE;
1850 SPAGAIN;
1851 RETURN;
1852 }
1853
533c011a 1854 if (PL_op->op_type == OP_SEEK)
8903cb82 1855 PUSHs(boolSV(do_seek(gv, offset, whence)));
1856 else {
b448e4fe
JH		 1857 Off_t sought = do_sysseek(gv, offset, whence);
1858 if (sought < 0)
146174a9
CB		 1859 PUSHs(&PL_sv_undef);
1860 else {
b448e4fe 1861 SV* sv = sought ?
146174a9 1862#if LSEEKSIZE > IVSIZE
b448e4fe 1863 newSVnv((NV)sought)
146174a9 1864#else
b448e4fe 1865 newSViv(sought)
146174a9
CB		 1866#endif
1867 : newSVpvn(zero_but_true, ZBTLEN);
1868 PUSHs(sv_2mortal(sv));
1869 }
8903cb82 1870 }
a0d0e21e
LW		 1871 RETURN;
1872}
1873
1874PP(pp_truncate)
1875{
4e35701f 1876 djSP;
8c99d73e
GS		 1877 /* There seems to be no consensus on the length type of truncate()
1878 * and ftruncate(), both off_t and size_t have supporters. In
1879 * general one would think that when using large files, off_t is
1880 * at least as wide as size_t, so using an off_t should be okay. */
1881 /* XXX Configure probe for the length type of *truncate() needed XXX */
1882 Off_t len;
a0d0e21e
LW		 1883 int result = 1;
1884 GV *tmpgv;
2d8e6c8d 1885 STRLEN n_a;
a0d0e21e 1886
8c99d73e
GS		 1887#if Size_t_size > IVSIZE
1888 len = (Off_t)POPn;
1889#else
1890 len = (Off_t)POPi;
1891#endif
1892 /* Checking for length < 0 is problematic as the type might or
1893 * might not be signed: if it is not, clever compilers will moan. */
1894 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1895 SETERRNO(0,0);
5d94fbed 1896#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1897 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 1898 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 1899 do_ftruncate:
1e422769 1900 TAINT_PROPER("truncate");
cb50131a
CB		 1901 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1902 result = 0;
1903 else {
1904 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 1905#ifdef HAS_TRUNCATE
cb50131a 1906 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1907#else
cb50131a 1908 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1909#endif
cb50131a
CB		 1910 result = 0;
1911 }
a0d0e21e
LW		 1912 }
1913 else {
cbdc8872 1914 SV *sv = POPs;
1e422769 1915 char *name;
2d8e6c8d 1916 STRLEN n_a;
1e422769 1917
cbdc8872 1918 if (SvTYPE(sv) == SVt_PVGV) {
1919 tmpgv = (GV*)sv; /* *main::FRED for example */
1920 goto do_ftruncate;
1921 }
1922 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1923 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1924 goto do_ftruncate;
1925 }
1e422769 1926
2d8e6c8d 1927 name = SvPV(sv, n_a);
1e422769 1928 TAINT_PROPER("truncate");
cbdc8872 1929#ifdef HAS_TRUNCATE
1e422769 1930 if (truncate(name, len) < 0)
a0d0e21e 1931 result = 0;
cbdc8872 1932#else
1933 {
1934 int tmpfd;
6ad3d225 1935 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 1936 result = 0;
cbdc8872 1937 else {
1938 if (my_chsize(tmpfd, len) < 0)
1939 result = 0;
6ad3d225 1940 PerlLIO_close(tmpfd);
cbdc8872 1941 }
a0d0e21e 1942 }
a0d0e21e 1943#endif
cbdc8872 1944 }
a0d0e21e
LW		 1945
1946 if (result)
1947 RETPUSHYES;
1948 if (!errno)
748a9306 1949 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1950 RETPUSHUNDEF;
1951#else
cea2e8a9 1952 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 1953#endif
1954}
1955
1956PP(pp_fcntl)
1957{
cea2e8a9 1958 return pp_ioctl();
a0d0e21e
LW		 1959}
1960
1961PP(pp_ioctl)
1962{
4e35701f 1963 djSP; dTARGET;
748a9306 1964 SV *argsv = POPs;
a0d0e21e 1965 unsigned int func = U_I(POPn);
533c011a 1966 int optype = PL_op->op_type;
a0d0e21e 1967 char *s;
324aa91a 1968 IV retval;
a0d0e21e
LW		 1969 GV *gv = (GV*)POPs;
1970 IO *io = GvIOn(gv);
1971
748a9306
LW		 1972 if (!io || !argsv || !IoIFP(io)) {
1973 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 1974 RETPUSHUNDEF;
1975 }
1976
748a9306 1977 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 1978 STRLEN len;
324aa91a 1979 STRLEN need;
748a9306 1980 s = SvPV_force(argsv, len);
324aa91a
HF		 1981 need = IOCPARM_LEN(func);
1982 if (len < need) {
1983 s = Sv_Grow(argsv, need + 1);
1984 SvCUR_set(argsv, need);
a0d0e21e
LW		 1985 }
1986
748a9306 1987 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 1988 }
1989 else {
748a9306 1990 retval = SvIV(argsv);
c529f79d 1991 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 1992 }
1993
1994 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1995
1996 if (optype == OP_IOCTL)
1997#ifdef HAS_IOCTL
76e3520e 1998 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 1999#else
cea2e8a9 2000 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2001#endif
2002 else
55497cff 2003#ifdef HAS_FCNTL
2004#if defined(OS2) && defined(__EMX__)
760ac839 2005 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2006#else
760ac839 2007 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
55497cff 2008#endif
2009#else
cea2e8a9 2010 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 2011#endif
2012
748a9306
LW		 2013 if (SvPOK(argsv)) {
2014 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2015 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2016 PL_op_name[optype]);
748a9306
LW		 2017 s[SvCUR(argsv)] = 0; /* put our null back */
2018 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2019 }
2020
2021 if (retval == -1)
2022 RETPUSHUNDEF;
2023 if (retval != 0) {
2024 PUSHi(retval);
2025 }
2026 else {
8903cb82 2027 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2028 }
2029 RETURN;
2030}
2031
2032PP(pp_flock)
2033{
4e35701f 2034 djSP; dTARGET;
a0d0e21e
LW		 2035 I32 value;
2036 int argtype;
2037 GV *gv;
bc37a18f 2038 IO *io = NULL;
760ac839 2039 PerlIO *fp;
16d20bd9 2040
ff68c719 2041#ifdef FLOCK
a0d0e21e 2042 argtype = POPi;
32da55ab 2043 if (MAXARG == 0)
3280af22 2044 gv = PL_last_in_gv;
a0d0e21e
LW		 2045 else
2046 gv = (GV*)POPs;
bc37a18f
RG		 2047 if (gv && (io = GvIO(gv)))
2048 fp = IoIFP(io);
2049 else {
a0d0e21e 2050 fp = Nullfp;
bc37a18f
RG		 2051 io = NULL;
2052 }
a0d0e21e 2053 if (fp) {
68dc0745 2054 (void)PerlIO_flush(fp);
76e3520e 2055 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2056 }
cb50131a 2057 else {
bc37a18f
RG		 2058 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2059 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2060 value = 0;
cb50131a 2061 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2062 }
a0d0e21e
LW		 2063 PUSHi(value);
2064 RETURN;
2065#else
cea2e8a9 2066 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2067#endif
2068}
2069
2070/* Sockets. */
2071
2072PP(pp_socket)
2073{
4e35701f 2074 djSP;
a0d0e21e
LW		 2075#ifdef HAS_SOCKET
2076 GV *gv;
2077 register IO *io;
2078 int protocol = POPi;
2079 int type = POPi;
2080 int domain = POPi;
2081 int fd;
2082
2083 gv = (GV*)POPs;
2084
2085 if (!gv) {
748a9306 2086 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2087 RETPUSHUNDEF;
2088 }
2089
2090 io = GvIOn(gv);
2091 if (IoIFP(io))
2092 do_close(gv, FALSE);
2093
2094 TAINT_PROPER("socket");
6ad3d225 2095 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2096 if (fd < 0)
2097 RETPUSHUNDEF;
760ac839
LW		 2098 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2099 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2100 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2101 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2102 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2103 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2104 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2105 RETPUSHUNDEF;
2106 }
8d2a6795
GS		 2107#if defined(HAS_FCNTL) && defined(F_SETFD)
2108 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2109#endif
a0d0e21e
LW		 2110
2111 RETPUSHYES;
2112#else
cea2e8a9 2113 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2114#endif
2115}
2116
2117PP(pp_sockpair)
2118{
4e35701f 2119 djSP;
a0d0e21e
LW		 2120#ifdef HAS_SOCKETPAIR
2121 GV *gv1;
2122 GV *gv2;
2123 register IO *io1;
2124 register IO *io2;
2125 int protocol = POPi;
2126 int type = POPi;
2127 int domain = POPi;
2128 int fd[2];
2129
2130 gv2 = (GV*)POPs;
2131 gv1 = (GV*)POPs;
2132 if (!gv1 || !gv2)
2133 RETPUSHUNDEF;
2134
2135 io1 = GvIOn(gv1);
2136 io2 = GvIOn(gv2);
2137 if (IoIFP(io1))
2138 do_close(gv1, FALSE);
2139 if (IoIFP(io2))
2140 do_close(gv2, FALSE);
2141
2142 TAINT_PROPER("socketpair");
6ad3d225 2143 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2144 RETPUSHUNDEF;
760ac839
LW		 2145 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2146 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2147 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2148 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2149 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2150 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2151 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2152 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2153 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2154 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2155 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2156 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2157 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2158 RETPUSHUNDEF;
2159 }
8d2a6795
GS		 2160#if defined(HAS_FCNTL) && defined(F_SETFD)
2161 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2162 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2163#endif
a0d0e21e
LW		 2164
2165 RETPUSHYES;
2166#else
cea2e8a9 2167 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2168#endif
2169}
2170
2171PP(pp_bind)
2172{
4e35701f 2173 djSP;
a0d0e21e 2174#ifdef HAS_SOCKET
eec2d3df
GS		 2175#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2176 extern GETPRIVMODE();
2177 extern GETUSERMODE();
2178#endif
748a9306 2179 SV *addrsv = POPs;
a0d0e21e
LW		 2180 char *addr;
2181 GV *gv = (GV*)POPs;
2182 register IO *io = GvIOn(gv);
2183 STRLEN len;
eec2d3df
GS		 2184 int bind_ok = 0;
2185#ifdef MPE
2186 int mpeprivmode = 0;
2187#endif
a0d0e21e
LW		 2188
2189 if (!io || !IoIFP(io))
2190 goto nuts;
2191
748a9306 2192 addr = SvPV(addrsv, len);
a0d0e21e 2193 TAINT_PROPER("bind");
eec2d3df
GS		 2194#ifdef MPE /* Deal with MPE bind() peculiarities */
2195 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2196 /* The address *MUST* stupidly be zero. */
2197 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2198 /* PRIV mode is required to bind() to ports < 1024. */
2199 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2200 ((struct sockaddr_in *)addr)->sin_port > 0) {
2201 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2202 mpeprivmode = 1;
2203 }
2204 }
2205#endif /* MPE */
2206 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2207 (struct sockaddr *)addr, len) >= 0)
2208 bind_ok = 1;
2209
2210#ifdef MPE /* Switch back to USER mode */
2211 if (mpeprivmode)
2212 GETUSERMODE();
2213#endif /* MPE */
2214
2215 if (bind_ok)
a0d0e21e
LW		 2216 RETPUSHYES;
2217 else
2218 RETPUSHUNDEF;
2219
2220nuts:
599cee73 2221 if (ckWARN(WARN_CLOSED))
bc37a18f 2222 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2223 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2224 RETPUSHUNDEF;
2225#else
cea2e8a9 2226 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2227#endif
2228}
2229
2230PP(pp_connect)
2231{
4e35701f 2232 djSP;
a0d0e21e 2233#ifdef HAS_SOCKET
748a9306 2234 SV *addrsv = POPs;
a0d0e21e
LW		 2235 char *addr;
2236 GV *gv = (GV*)POPs;
2237 register IO *io = GvIOn(gv);
2238 STRLEN len;
2239
2240 if (!io || !IoIFP(io))
2241 goto nuts;
2242
748a9306 2243 addr = SvPV(addrsv, len);
a0d0e21e 2244 TAINT_PROPER("connect");
6ad3d225 2245 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2246 RETPUSHYES;
2247 else
2248 RETPUSHUNDEF;
2249
2250nuts:
599cee73 2251 if (ckWARN(WARN_CLOSED))
bc37a18f 2252 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2253 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2254 RETPUSHUNDEF;
2255#else
cea2e8a9 2256 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2257#endif
2258}
2259
2260PP(pp_listen)
2261{
4e35701f 2262 djSP;
a0d0e21e
LW		 2263#ifdef HAS_SOCKET
2264 int backlog = POPi;
2265 GV *gv = (GV*)POPs;
2266 register IO *io = GvIOn(gv);
2267
2268 if (!io || !IoIFP(io))
2269 goto nuts;
2270
6ad3d225 2271 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2272 RETPUSHYES;
2273 else
2274 RETPUSHUNDEF;
2275
2276nuts:
599cee73 2277 if (ckWARN(WARN_CLOSED))
bc37a18f 2278 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2279 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2280 RETPUSHUNDEF;
2281#else
cea2e8a9 2282 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2283#endif
2284}
2285
2286PP(pp_accept)
2287{
4e35701f 2288 djSP; dTARGET;
a0d0e21e
LW		 2289#ifdef HAS_SOCKET
2290 GV *ngv;
2291 GV *ggv;
2292 register IO *nstio;
2293 register IO *gstio;
4633a7c4 2294 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2295 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2296 int fd;
2297
2298 ggv = (GV*)POPs;
2299 ngv = (GV*)POPs;
2300
2301 if (!ngv)
2302 goto badexit;
2303 if (!ggv)
2304 goto nuts;
2305
2306 gstio = GvIO(ggv);
2307 if (!gstio || !IoIFP(gstio))
2308 goto nuts;
2309
2310 nstio = GvIOn(ngv);
2311 if (IoIFP(nstio))
2312 do_close(ngv, FALSE);
2313
6ad3d225 2314 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2315 if (fd < 0)
2316 goto badexit;
760ac839
LW		 2317 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2318 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
50952442 2319 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2320 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2321 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2322 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2323 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2324 goto badexit;
2325 }
8d2a6795
GS		 2326#if defined(HAS_FCNTL) && defined(F_SETFD)
2327 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2328#endif
a0d0e21e 2329
748a9306 2330 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2331 RETURN;
2332
2333nuts:
599cee73 2334 if (ckWARN(WARN_CLOSED))
bc37a18f 2335 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2336 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2337
2338badexit:
2339 RETPUSHUNDEF;
2340
2341#else
cea2e8a9 2342 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2343#endif
2344}
2345
2346PP(pp_shutdown)
2347{
4e35701f 2348 djSP; dTARGET;
a0d0e21e
LW		 2349#ifdef HAS_SOCKET
2350 int how = POPi;
2351 GV *gv = (GV*)POPs;
2352 register IO *io = GvIOn(gv);
2353
2354 if (!io || !IoIFP(io))
2355 goto nuts;
2356
6ad3d225 2357 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2358 RETURN;
2359
2360nuts:
599cee73 2361 if (ckWARN(WARN_CLOSED))
bc37a18f 2362 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2363 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2364 RETPUSHUNDEF;
2365#else
cea2e8a9 2366 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2367#endif
2368}
2369
2370PP(pp_gsockopt)
2371{
2372#ifdef HAS_SOCKET
cea2e8a9 2373 return pp_ssockopt();
a0d0e21e 2374#else
cea2e8a9 2375 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2376#endif
2377}
2378
2379PP(pp_ssockopt)
2380{
4e35701f 2381 djSP;
a0d0e21e 2382#ifdef HAS_SOCKET
533c011a 2383 int optype = PL_op->op_type;
a0d0e21e
LW		 2384 SV *sv;
2385 int fd;
2386 unsigned int optname;
2387 unsigned int lvl;
2388 GV *gv;
2389 register IO *io;
1e422769 2390 Sock_size_t len;
a0d0e21e
LW		 2391
2392 if (optype == OP_GSOCKOPT)
2393 sv = sv_2mortal(NEWSV(22, 257));
2394 else
2395 sv = POPs;
2396 optname = (unsigned int) POPi;
2397 lvl = (unsigned int) POPi;
2398
2399 gv = (GV*)POPs;
2400 io = GvIOn(gv);
2401 if (!io || !IoIFP(io))
2402 goto nuts;
2403
760ac839 2404 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2405 switch (optype) {
2406 case OP_GSOCKOPT:
748a9306 2407 SvGROW(sv, 257);
a0d0e21e 2408 (void)SvPOK_only(sv);
748a9306
LW		 2409 SvCUR_set(sv,256);
2410 *SvEND(sv) ='\0';
1e422769 2411 len = SvCUR(sv);
6ad3d225 2412 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2413 goto nuts2;
1e422769 2414 SvCUR_set(sv, len);
748a9306 2415 *SvEND(sv) ='\0';
a0d0e21e
LW		 2416 PUSHs(sv);
2417 break;
2418 case OP_SSOCKOPT: {
1e422769 2419 char *buf;
2420 int aint;
2421 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2422 STRLEN l;
2423 buf = SvPV(sv, l);
2424 len = l;
1e422769 2425 }
56ee1660 2426 else {
a0d0e21e
LW		 2427 aint = (int)SvIV(sv);
2428 buf = (char*)&aint;
2429 len = sizeof(int);
2430 }
6ad3d225 2431 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2432 goto nuts2;
3280af22 2433 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2434 }
2435 break;
2436 }
2437 RETURN;
2438
2439nuts:
599cee73 2440 if (ckWARN(WARN_CLOSED))
bc37a18f 2441 report_evil_fh(gv, io, optype);
748a9306 2442 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2443nuts2:
2444 RETPUSHUNDEF;
2445
2446#else
cea2e8a9 2447 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2448#endif
2449}
2450
2451PP(pp_getsockname)
2452{
2453#ifdef HAS_SOCKET
cea2e8a9 2454 return pp_getpeername();
a0d0e21e 2455#else
cea2e8a9 2456 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2457#endif
2458}
2459
2460PP(pp_getpeername)
2461{
4e35701f 2462 djSP;
a0d0e21e 2463#ifdef HAS_SOCKET
533c011a 2464 int optype = PL_op->op_type;
a0d0e21e
LW		 2465 SV *sv;
2466 int fd;
2467 GV *gv = (GV*)POPs;
2468 register IO *io = GvIOn(gv);
1e422769 2469 Sock_size_t len;
a0d0e21e
LW		 2470
2471 if (!io || !IoIFP(io))
2472 goto nuts;
2473
2474 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2475 (void)SvPOK_only(sv);
1e422769 2476 len = 256;
2477 SvCUR_set(sv, len);
748a9306 2478 *SvEND(sv) ='\0';
760ac839 2479 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2480 switch (optype) {
2481 case OP_GETSOCKNAME:
6ad3d225 2482 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2483 goto nuts2;
2484 break;
2485 case OP_GETPEERNAME:
6ad3d225 2486 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2487 goto nuts2;
490ab354
JH		 2488#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2489 {
2490 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";
2491 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2492 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2493 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2494 sizeof(u_short) + sizeof(struct in_addr))) {
2495 goto nuts2;
2496 }
2497 }
2498#endif
a0d0e21e
LW		 2499 break;
2500 }
13826f2c
CS		 2501#ifdef BOGUS_GETNAME_RETURN
2502 /* Interactive Unix, getpeername() and getsockname()
2503 does not return valid namelen */
1e422769 2504 if (len == BOGUS_GETNAME_RETURN)
2505 len = sizeof(struct sockaddr);
13826f2c 2506#endif
1e422769 2507 SvCUR_set(sv, len);
748a9306 2508 *SvEND(sv) ='\0';
a0d0e21e
LW		 2509 PUSHs(sv);
2510 RETURN;
2511
2512nuts:
599cee73 2513 if (ckWARN(WARN_CLOSED))
bc37a18f 2514 report_evil_fh(gv, io, optype);
748a9306 2515 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2516nuts2:
2517 RETPUSHUNDEF;
2518
2519#else
cea2e8a9 2520 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2521#endif
2522}
2523
2524/* Stat calls. */
2525
2526PP(pp_lstat)
2527{
cea2e8a9 2528 return pp_stat();
a0d0e21e
LW		 2529}
2530
2531PP(pp_stat)
2532{
4e35701f 2533 djSP;
2dd78f96 2534 GV *gv;
54310121 2535 I32 gimme;
a0d0e21e 2536 I32 max = 13;
2d8e6c8d 2537 STRLEN n_a;
a0d0e21e 2538
533c011a 2539 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2540 gv = cGVOP_gv;
9d837945
TM		 2541 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2542 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2543 "lstat() on filehandle %s", GvENAME(gv));
748a9306 2544 do_fstat:
2dd78f96 2545 if (gv != PL_defgv) {
3280af22 2546 PL_laststype = OP_STAT;
2dd78f96 2547 PL_statgv = gv;
3280af22 2548 sv_setpv(PL_statname, "");
2dd78f96
JH		 2549 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2550 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2551 }
9ddeeac9 2552 if (PL_laststatval < 0) {
2dd78f96
JH		 2553 dTHR;
2554 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2555 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2556 max = 0;
9ddeeac9 2557 }
a0d0e21e
LW		 2558 }
2559 else {
748a9306
LW		 2560 SV* sv = POPs;
2561 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2562 gv = (GV*)sv;
748a9306
LW		 2563 goto do_fstat;
2564 }
2565 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2566 gv = (GV*)SvRV(sv);
748a9306
LW		 2567 goto do_fstat;
2568 }
2d8e6c8d 2569 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2570 PL_statgv = Nullgv;
a0d0e21e 2571#ifdef HAS_LSTAT
533c011a
NIS		 2572 PL_laststype = PL_op->op_type;
2573 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2574 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2575 else
2576#endif
2d8e6c8d 2577 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2578 if (PL_laststatval < 0) {
2d8e6c8d 2579 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2580 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2581 max = 0;
2582 }
2583 }
2584
54310121 2585 gimme = GIMME_V;
2586 if (gimme != G_ARRAY) {
2587 if (gimme != G_VOID)
2588 XPUSHs(boolSV(max));
2589 RETURN;
a0d0e21e
LW		 2590 }
2591 if (max) {
36477c24 2592 EXTEND(SP, max);
2593 EXTEND_MORTAL(max);
1ff81528
PL		 2594 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2595 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2596 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2597 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2598#if Uid_t_size > IVSIZE
2599 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2600#else
23dcd6c8 2601# if Uid_t_sign <= 0
1ff81528 2602 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2603# else
2604 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2605# endif
146174a9
CB		 2606#endif
2607#if Gid_t_size > IVSIZE
2608 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2609#else
23dcd6c8 2610# if Gid_t_sign <= 0
1ff81528 2611 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2612# else
2613 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2614# endif
146174a9 2615#endif
cbdc8872 2616#ifdef USE_STAT_RDEV
1ff81528 2617 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2618#else
79cb57f6 2619 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2620#endif
146174a9
CB		 2621#if Off_t_size > IVSIZE
2622 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2623#else
1ff81528 2624 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2625#endif
cbdc8872 2626#ifdef BIG_TIME
172ae379
JH		 2627 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2628 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2629 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2630#else
1ff81528
PL		 2631 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2632 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2633 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2634#endif
a0d0e21e 2635#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2636 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2637 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2638#else
79cb57f6
GS		 2639 PUSHs(sv_2mortal(newSVpvn("", 0)));
2640 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2641#endif
2642 }
2643 RETURN;
2644}
2645
2646PP(pp_ftrread)
2647{
5ff3f7a4 2648 I32 result;
4e35701f 2649 djSP;
5ff3f7a4 2650#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2651 STRLEN n_a;
5ff3f7a4 2652 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2653 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2654 if (result == 0)
2655 RETPUSHYES;
2656 if (result < 0)
2657 RETPUSHUNDEF;
2658 RETPUSHNO;
22865c03
GS		 2659 }
2660 else
cea2e8a9 2661 result = my_stat();
5ff3f7a4 2662#else
cea2e8a9 2663 result = my_stat();
5ff3f7a4 2664#endif
22865c03 2665 SPAGAIN;
a0d0e21e
LW		 2666 if (result < 0)
2667 RETPUSHUNDEF;
3280af22 2668 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2669 RETPUSHYES;
2670 RETPUSHNO;
2671}
2672
2673PP(pp_ftrwrite)
2674{
5ff3f7a4 2675 I32 result;
4e35701f 2676 djSP;
5ff3f7a4 2677#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2678 STRLEN n_a;
5ff3f7a4 2679 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2680 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2681 if (result == 0)
2682 RETPUSHYES;
2683 if (result < 0)
2684 RETPUSHUNDEF;
2685 RETPUSHNO;
22865c03
GS		 2686 }
2687 else
cea2e8a9 2688 result = my_stat();
5ff3f7a4 2689#else
cea2e8a9 2690 result = my_stat();
5ff3f7a4 2691#endif
22865c03 2692 SPAGAIN;
a0d0e21e
LW		 2693 if (result < 0)
2694 RETPUSHUNDEF;
3280af22 2695 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2696 RETPUSHYES;
2697 RETPUSHNO;
2698}
2699
2700PP(pp_ftrexec)
2701{
5ff3f7a4 2702 I32 result;
4e35701f 2703 djSP;
5ff3f7a4 2704#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2705 STRLEN n_a;
5ff3f7a4 2706 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2707 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2708 if (result == 0)
2709 RETPUSHYES;
2710 if (result < 0)
2711 RETPUSHUNDEF;
2712 RETPUSHNO;
22865c03
GS		 2713 }
2714 else
cea2e8a9 2715 result = my_stat();
5ff3f7a4 2716#else
cea2e8a9 2717 result = my_stat();
5ff3f7a4 2718#endif
22865c03 2719 SPAGAIN;
a0d0e21e
LW		 2720 if (result < 0)
2721 RETPUSHUNDEF;
3280af22 2722 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2723 RETPUSHYES;
2724 RETPUSHNO;
2725}
2726
2727PP(pp_fteread)
2728{
5ff3f7a4 2729 I32 result;
4e35701f 2730 djSP;
5ff3f7a4 2731#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2732 STRLEN n_a;
5ff3f7a4 2733 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2734 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2735 if (result == 0)
2736 RETPUSHYES;
2737 if (result < 0)
2738 RETPUSHUNDEF;
2739 RETPUSHNO;
22865c03
GS		 2740 }
2741 else
cea2e8a9 2742 result = my_stat();
5ff3f7a4 2743#else
cea2e8a9 2744 result = my_stat();
5ff3f7a4 2745#endif
22865c03 2746 SPAGAIN;
a0d0e21e
LW		 2747 if (result < 0)
2748 RETPUSHUNDEF;
3280af22 2749 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2750 RETPUSHYES;
2751 RETPUSHNO;
2752}
2753
2754PP(pp_ftewrite)
2755{
5ff3f7a4 2756 I32 result;
4e35701f 2757 djSP;
5ff3f7a4 2758#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2759 STRLEN n_a;
5ff3f7a4 2760 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2761 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2762 if (result == 0)
2763 RETPUSHYES;
2764 if (result < 0)
2765 RETPUSHUNDEF;
2766 RETPUSHNO;
22865c03
GS		 2767 }
2768 else
cea2e8a9 2769 result = my_stat();
5ff3f7a4 2770#else
cea2e8a9 2771 result = my_stat();
5ff3f7a4 2772#endif
22865c03 2773 SPAGAIN;
a0d0e21e
LW		 2774 if (result < 0)
2775 RETPUSHUNDEF;
3280af22 2776 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2777 RETPUSHYES;
2778 RETPUSHNO;
2779}
2780
2781PP(pp_fteexec)
2782{
5ff3f7a4 2783 I32 result;
4e35701f 2784 djSP;
5ff3f7a4 2785#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2786 STRLEN n_a;
5ff3f7a4 2787 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2788 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2789 if (result == 0)
2790 RETPUSHYES;
2791 if (result < 0)
2792 RETPUSHUNDEF;
2793 RETPUSHNO;
22865c03
GS		 2794 }
2795 else
cea2e8a9 2796 result = my_stat();
5ff3f7a4 2797#else
cea2e8a9 2798 result = my_stat();
5ff3f7a4 2799#endif
22865c03 2800 SPAGAIN;
a0d0e21e
LW		 2801 if (result < 0)
2802 RETPUSHUNDEF;
3280af22 2803 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2804 RETPUSHYES;
2805 RETPUSHNO;
2806}
2807
2808PP(pp_ftis)
2809{
cea2e8a9 2810 I32 result = my_stat();
4e35701f 2811 djSP;
a0d0e21e
LW		 2812 if (result < 0)
2813 RETPUSHUNDEF;
2814 RETPUSHYES;
2815}
2816
2817PP(pp_fteowned)
2818{
cea2e8a9 2819 return pp_ftrowned();
a0d0e21e
LW		 2820}
2821
2822PP(pp_ftrowned)
2823{
cea2e8a9 2824 I32 result = my_stat();
4e35701f 2825 djSP;
a0d0e21e
LW		 2826 if (result < 0)
2827 RETPUSHUNDEF;
146174a9
CB		 2828 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2829 PL_euid : PL_uid) )
a0d0e21e
LW		 2830 RETPUSHYES;
2831 RETPUSHNO;
2832}
2833
2834PP(pp_ftzero)
2835{
cea2e8a9 2836 I32 result = my_stat();
4e35701f 2837 djSP;
a0d0e21e
LW		 2838 if (result < 0)
2839 RETPUSHUNDEF;
146174a9 2840 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2841 RETPUSHYES;
2842 RETPUSHNO;
2843}
2844
2845PP(pp_ftsize)
2846{
cea2e8a9 2847 I32 result = my_stat();
4e35701f 2848 djSP; dTARGET;
a0d0e21e
LW		 2849 if (result < 0)
2850 RETPUSHUNDEF;
146174a9
CB		 2851#if Off_t_size > IVSIZE
2852 PUSHn(PL_statcache.st_size);
2853#else
3280af22 2854 PUSHi(PL_statcache.st_size);
146174a9 2855#endif
a0d0e21e
LW		 2856 RETURN;
2857}
2858
2859PP(pp_ftmtime)
2860{
cea2e8a9 2861 I32 result = my_stat();
4e35701f 2862 djSP; dTARGET;
a0d0e21e
LW		 2863 if (result < 0)
2864 RETPUSHUNDEF;
c6419e06 2865 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2866 RETURN;
2867}
2868
2869PP(pp_ftatime)
2870{
cea2e8a9 2871 I32 result = my_stat();
4e35701f 2872 djSP; dTARGET;
a0d0e21e
LW		 2873 if (result < 0)
2874 RETPUSHUNDEF;
c6419e06 2875 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 2876 RETURN;
2877}
2878
2879PP(pp_ftctime)
2880{
cea2e8a9 2881 I32 result = my_stat();
4e35701f 2882 djSP; dTARGET;
a0d0e21e
LW		 2883 if (result < 0)
2884 RETPUSHUNDEF;
c6419e06 2885 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 2886 RETURN;
2887}
2888
2889PP(pp_ftsock)
2890{
cea2e8a9 2891 I32 result = my_stat();
4e35701f 2892 djSP;
a0d0e21e
LW		 2893 if (result < 0)
2894 RETPUSHUNDEF;
3280af22 2895 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 2896 RETPUSHYES;
2897 RETPUSHNO;
2898}
2899
2900PP(pp_ftchr)
2901{
cea2e8a9 2902 I32 result = my_stat();
4e35701f 2903 djSP;
a0d0e21e
LW		 2904 if (result < 0)
2905 RETPUSHUNDEF;
3280af22 2906 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 2907 RETPUSHYES;
2908 RETPUSHNO;
2909}
2910
2911PP(pp_ftblk)
2912{
cea2e8a9 2913 I32 result = my_stat();
4e35701f 2914 djSP;
a0d0e21e
LW		 2915 if (result < 0)
2916 RETPUSHUNDEF;
3280af22 2917 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 2918 RETPUSHYES;
2919 RETPUSHNO;
2920}
2921
2922PP(pp_ftfile)
2923{
cea2e8a9 2924 I32 result = my_stat();
4e35701f 2925 djSP;
a0d0e21e
LW		 2926 if (result < 0)
2927 RETPUSHUNDEF;
3280af22 2928 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 2929 RETPUSHYES;
2930 RETPUSHNO;
2931}
2932
2933PP(pp_ftdir)
2934{
cea2e8a9 2935 I32 result = my_stat();
4e35701f 2936 djSP;
a0d0e21e
LW		 2937 if (result < 0)
2938 RETPUSHUNDEF;
3280af22 2939 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 2940 RETPUSHYES;
2941 RETPUSHNO;
2942}
2943
2944PP(pp_ftpipe)
2945{
cea2e8a9 2946 I32 result = my_stat();
4e35701f 2947 djSP;
a0d0e21e
LW		 2948 if (result < 0)
2949 RETPUSHUNDEF;
3280af22 2950 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 2951 RETPUSHYES;
2952 RETPUSHNO;
2953}
2954
2955PP(pp_ftlink)
2956{
cea2e8a9 2957 I32 result = my_lstat();
4e35701f 2958 djSP;
a0d0e21e
LW		 2959 if (result < 0)
2960 RETPUSHUNDEF;
3280af22 2961 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 2962 RETPUSHYES;
2963 RETPUSHNO;
2964}
2965
2966PP(pp_ftsuid)
2967{
4e35701f 2968 djSP;
a0d0e21e 2969#ifdef S_ISUID
cea2e8a9 2970 I32 result = my_stat();
a0d0e21e
LW		 2971 SPAGAIN;
2972 if (result < 0)
2973 RETPUSHUNDEF;
3280af22 2974 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 2975 RETPUSHYES;
2976#endif
2977 RETPUSHNO;
2978}
2979
2980PP(pp_ftsgid)
2981{
4e35701f 2982 djSP;
a0d0e21e 2983#ifdef S_ISGID
cea2e8a9 2984 I32 result = my_stat();
a0d0e21e
LW		 2985 SPAGAIN;
2986 if (result < 0)
2987 RETPUSHUNDEF;
3280af22 2988 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 2989 RETPUSHYES;
2990#endif
2991 RETPUSHNO;
2992}
2993
2994PP(pp_ftsvtx)
2995{
4e35701f 2996 djSP;
a0d0e21e 2997#ifdef S_ISVTX
cea2e8a9 2998 I32 result = my_stat();
a0d0e21e
LW		 2999 SPAGAIN;
3000 if (result < 0)
3001 RETPUSHUNDEF;
3280af22 3002 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3003 RETPUSHYES;
3004#endif
3005 RETPUSHNO;
3006}
3007
3008PP(pp_fttty)
3009{
4e35701f 3010 djSP;
a0d0e21e
LW		 3011 int fd;
3012 GV *gv;
fb73857a 3013 char *tmps = Nullch;
2d8e6c8d 3014 STRLEN n_a;
fb73857a 3015
533c011a 3016 if (PL_op->op_flags & OPf_REF)
146174a9 3017 gv = cGVOP_gv;
fb73857a 3018 else if (isGV(TOPs))
3019 gv = (GV*)POPs;
3020 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3021 gv = (GV*)SvRV(POPs);
a0d0e21e 3022 else
2d8e6c8d 3023 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3024
a0d0e21e 3025 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3026 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3027 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3028 fd = atoi(tmps);
3029 else
3030 RETPUSHUNDEF;
6ad3d225 3031 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3032 RETPUSHYES;
3033 RETPUSHNO;
3034}
3035
16d20bd9
AD		 3036#if defined(atarist) /* this will work with atariST. Configure will
3037 make guesses for other systems. */
3038# define FILE_base(f) ((f)->_base)
3039# define FILE_ptr(f) ((f)->_ptr)
3040# define FILE_cnt(f) ((f)->_cnt)
3041# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3042#endif
3043
3044PP(pp_fttext)
3045{
4e35701f 3046 djSP;
a0d0e21e
LW		 3047 I32 i;
3048 I32 len;
3049 I32 odd = 0;
3050 STDCHAR tbuf[512];
3051 register STDCHAR *s;
3052 register IO *io;
5f05dabc 3053 register SV *sv;
3054 GV *gv;
2d8e6c8d 3055 STRLEN n_a;
146174a9 3056 PerlIO *fp;
a0d0e21e 3057
533c011a 3058 if (PL_op->op_flags & OPf_REF)
146174a9 3059 gv = cGVOP_gv;
5f05dabc 3060 else if (isGV(TOPs))
3061 gv = (GV*)POPs;
3062 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3063 gv = (GV*)SvRV(POPs);
3064 else
3065 gv = Nullgv;
3066
3067 if (gv) {
a0d0e21e 3068 EXTEND(SP, 1);
3280af22
NIS		 3069 if (gv == PL_defgv) {
3070 if (PL_statgv)
3071 io = GvIO(PL_statgv);
a0d0e21e 3072 else {
3280af22 3073 sv = PL_statname;
a0d0e21e
LW		 3074 goto really_filename;
3075 }
3076 }
3077 else {
3280af22
NIS		 3078 PL_statgv = gv;
3079 PL_laststatval = -1;
3080 sv_setpv(PL_statname, "");
3081 io = GvIO(PL_statgv);
a0d0e21e
LW		 3082 }
3083 if (io && IoIFP(io)) {
5f05dabc 3084 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3085 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3086 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3087 if (PL_laststatval < 0)
5f05dabc 3088 RETPUSHUNDEF;
3280af22 3089 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
533c011a 3090 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3091 RETPUSHNO;
3092 else
3093 RETPUSHYES;
a20bf0c3 3094 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3095 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3096 if (i != EOF)
760ac839 3097 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3098 }
a20bf0c3 3099 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3100 RETPUSHYES;
a20bf0c3
JH		 3101 len = PerlIO_get_bufsiz(IoIFP(io));
3102 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3103 /* sfio can have large buffers - limit to 512 */
3104 if (len > 512)
3105 len = 512;
a0d0e21e
LW		 3106 }
3107 else {
2dd78f96
JH		 3108 dTHR;
3109 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3110 gv = cGVOP_gv;
2dd78f96 3111 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3112 }
748a9306 3113 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3114 RETPUSHUNDEF;
3115 }
3116 }
3117 else {
3118 sv = POPs;
5f05dabc 3119 really_filename:
3280af22
NIS		 3120 PL_statgv = Nullgv;
3121 PL_laststatval = -1;
2d8e6c8d 3122 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3123 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3124 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3125 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3126 RETPUSHUNDEF;
3127 }
146174a9
CB		 3128 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3129 if (PL_laststatval < 0) {
3130 (void)PerlIO_close(fp);
5f05dabc 3131 RETPUSHUNDEF;
146174a9 3132 }
92d29cee 3133 do_binmode(fp, '<', O_BINARY);
146174a9
CB		 3134 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3135 (void)PerlIO_close(fp);
a0d0e21e 3136 if (len <= 0) {
533c011a 3137 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3138 RETPUSHNO; /* special case NFS directories */
3139 RETPUSHYES; /* null file is anything */
3140 }
3141 s = tbuf;
3142 }
3143
3144 /* now scan s to look for textiness */
4633a7c4 3145 /* XXX ASCII dependent code */
a0d0e21e 3146
146174a9
CB		 3147#if defined(DOSISH) || defined(USEMYBINMODE)
3148 /* ignore trailing ^Z on short files */
3149 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3150 --len;
3151#endif
3152
a0d0e21e
LW		 3153 for (i = 0; i < len; i++, s++) {
3154 if (!*s) { /* null never allowed in text */
3155 odd += len;
3156 break;
3157 }
9d116dd7
JH		 3158#ifdef EBCDIC
3159 else if (!(isPRINT(*s) || isSPACE(*s)))
3160 odd++;
3161#else
146174a9
CB		 3162 else if (*s & 128) {
3163#ifdef USE_LOCALE
b3f66c68
GS		 3164 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3165 continue;
3166#endif
3167 /* utf8 characters don't count as odd */
3168 if (*s & 0x40) {
3169 int ulen = UTF8SKIP(s);
3170 if (ulen < len - i) {
3171 int j;
3172 for (j = 1; j < ulen; j++) {
3173 if ((s[j] & 0xc0) != 0x80)
3174 goto not_utf8;
3175 }
3176 --ulen; /* loop does extra increment */
3177 s += ulen;
3178 i += ulen;
3179 continue;
3180 }
3181 }
3182 not_utf8:
3183 odd++;
146174a9 3184 }
a0d0e21e
LW		 3185 else if (*s < 32 &&
3186 *s != '\n' && *s != '\r' && *s != '\b' &&
3187 *s != '\t' && *s != '\f' && *s != 27)
3188 odd++;
9d116dd7 3189#endif
a0d0e21e
LW		 3190 }
3191
533c011a 3192 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3193 RETPUSHNO;
3194 else
3195 RETPUSHYES;
3196}
3197
3198PP(pp_ftbinary)
3199{
cea2e8a9 3200 return pp_fttext();
a0d0e21e
LW		 3201}
3202
3203/* File calls. */
3204
3205PP(pp_chdir)
3206{
4e35701f 3207 djSP; dTARGET;
a0d0e21e
LW		 3208 char *tmps;
3209 SV **svp;
2d8e6c8d 3210 STRLEN n_a;
a0d0e21e
LW		 3211
3212 if (MAXARG < 1)
3213 tmps = Nullch;
3214 else
2d8e6c8d 3215 tmps = POPpx;
a0d0e21e 3216 if (!tmps || !*tmps) {
3280af22 3217 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3218 if (svp)
2d8e6c8d 3219 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3220 }
3221 if (!tmps || !*tmps) {
3280af22 3222 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3223 if (svp)
2d8e6c8d 3224 tmps = SvPV(*svp, n_a);
a0d0e21e 3225 }
491527d0
GS		 3226#ifdef VMS
3227 if (!tmps || !*tmps) {
6b88bc9c 3228 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3229 if (svp)
2d8e6c8d 3230 tmps = SvPV(*svp, n_a);
491527d0
GS		 3231 }
3232#endif
a0d0e21e 3233 TAINT_PROPER("chdir");
6ad3d225 3234 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3235#ifdef VMS
3236 /* Clear the DEFAULT element of ENV so we'll get the new value
3237 * in the future. */
6b88bc9c 3238 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3239#endif
a0d0e21e
LW		 3240 RETURN;
3241}
3242
3243PP(pp_chown)
3244{
4e35701f 3245 djSP; dMARK; dTARGET;
a0d0e21e
LW		 3246 I32 value;
3247#ifdef HAS_CHOWN
533c011a 3248 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3249 SP = MARK;
3250 PUSHi(value);
3251 RETURN;
3252#else
cea2e8a9 3253 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3254#endif
3255}
3256
3257PP(pp_chroot)
3258{
4e35701f 3259 djSP; dTARGET;
a0d0e21e
LW		 3260 char *tmps;
3261#ifdef HAS_CHROOT
2d8e6c8d
GS		 3262 STRLEN n_a;
3263 tmps = POPpx;
a0d0e21e
LW		 3264 TAINT_PROPER("chroot");
3265 PUSHi( chroot(tmps) >= 0 );
3266 RETURN;
3267#else
cea2e8a9 3268 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3269#endif
3270}
3271
3272PP(pp_unlink)
3273{
4e35701f 3274 djSP; dMARK; dTARGET;
a0d0e21e 3275 I32 value;
533c011a 3276 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3277 SP = MARK;
3278 PUSHi(value);
3279 RETURN;
3280}
3281
3282PP(pp_chmod)
3283{
4e35701f 3284 djSP; dMARK; dTARGET;
a0d0e21e 3285 I32 value;
533c011a 3286 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3287 SP = MARK;
3288 PUSHi(value);
3289 RETURN;
3290}
3291
3292PP(pp_utime)
3293{
4e35701f 3294 djSP; dMARK; dTARGET;
a0d0e21e 3295 I32 value;
533c011a 3296 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3297 SP = MARK;
3298 PUSHi(value);
3299 RETURN;
3300}
3301
3302PP(pp_rename)
3303{
4e35701f 3304 djSP; dTARGET;
a0d0e21e 3305 int anum;
2d8e6c8d 3306 STRLEN n_a;
a0d0e21e 3307
2d8e6c8d
GS		 3308 char *tmps2 = POPpx;
3309 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3310 TAINT_PROPER("rename");
3311#ifdef HAS_RENAME
baed7233 3312 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3313#else
6b88bc9c 3314 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3315 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3316 anum = 1;
3317 else {
3654eb6c 3318 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3319 (void)UNLINK(tmps2);
3320 if (!(anum = link(tmps, tmps2)))
3321 anum = UNLINK(tmps);
3322 }
a0d0e21e
LW		 3323 }
3324#endif
3325 SETi( anum >= 0 );
3326 RETURN;
3327}
3328
3329PP(pp_link)
3330{
4e35701f 3331 djSP; dTARGET;
a0d0e21e 3332#ifdef HAS_LINK
2d8e6c8d
GS		 3333 STRLEN n_a;
3334 char *tmps2 = POPpx;
3335 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3336 TAINT_PROPER("link");
146174a9 3337 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3338#else
cea2e8a9 3339 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3340#endif
3341 RETURN;
3342}
3343
3344PP(pp_symlink)
3345{
4e35701f 3346 djSP; dTARGET;
a0d0e21e 3347#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3348 STRLEN n_a;
3349 char *tmps2 = POPpx;
3350 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3351 TAINT_PROPER("symlink");
3352 SETi( symlink(tmps, tmps2) >= 0 );
3353 RETURN;
3354#else
cea2e8a9 3355 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3356#endif
3357}
3358
3359PP(pp_readlink)
3360{
4e35701f 3361 djSP; dTARGET;
a0d0e21e
LW		 3362#ifdef HAS_SYMLINK
3363 char *tmps;
46fc3d4c 3364 char buf[MAXPATHLEN];
a0d0e21e 3365 int len;
2d8e6c8d 3366 STRLEN n_a;
46fc3d4c 3367
fb73857a 3368#ifndef INCOMPLETE_TAINTS
3369 TAINT;
3370#endif
2d8e6c8d 3371 tmps = POPpx;
a0d0e21e
LW		 3372 len = readlink(tmps, buf, sizeof buf);
3373 EXTEND(SP, 1);
3374 if (len < 0)
3375 RETPUSHUNDEF;
3376 PUSHp(buf, len);
3377 RETURN;
3378#else
3379 EXTEND(SP, 1);
3380 RETSETUNDEF; /* just pretend it's a normal file */
3381#endif
3382}
3383
3384#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3385STATIC int
cea2e8a9 3386S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3387{
1e422769 3388 char *save_filename = filename;
3389 char *cmdline;
3390 char *s;
760ac839 3391 PerlIO *myfp;
1e422769 3392 int anum = 1;
a0d0e21e 3393
1e422769 3394 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3395 strcpy(cmdline, cmd);
3396 strcat(cmdline, " ");
3397 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3398 *s++ = '\\';
3399 *s++ = *filename++;
3400 }
3401 strcpy(s, " 2>&1");
6ad3d225 3402 myfp = PerlProc_popen(cmdline, "r");
1e422769 3403 Safefree(cmdline);
3404
a0d0e21e 3405 if (myfp) {
1e422769 3406 SV *tmpsv = sv_newmortal();
6b88bc9c 3407 /* Need to save/restore 'PL_rs' ?? */
760ac839 3408 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3409 (void)PerlProc_pclose(myfp);
a0d0e21e 3410 if (s != Nullch) {
1e422769 3411 int e;
3412 for (e = 1;
a0d0e21e 3413#ifdef HAS_SYS_ERRLIST
1e422769 3414 e <= sys_nerr
3415#endif
3416 ; e++)
3417 {
3418 /* you don't see this */
3419 char *errmsg =
3420#ifdef HAS_SYS_ERRLIST
3421 sys_errlist[e]
a0d0e21e 3422#else
1e422769 3423 strerror(e)
a0d0e21e 3424#endif
1e422769 3425 ;
3426 if (!errmsg)
3427 break;
3428 if (instr(s, errmsg)) {
3429 SETERRNO(e,0);
3430 return 0;
3431 }
a0d0e21e 3432 }
748a9306 3433 SETERRNO(0,0);
a0d0e21e
LW		 3434#ifndef EACCES
3435#define EACCES EPERM
3436#endif
1e422769 3437 if (instr(s, "cannot make"))
748a9306 3438 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3439 else if (instr(s, "existing file"))
748a9306 3440 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3441 else if (instr(s, "ile exists"))
748a9306 3442 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3443 else if (instr(s, "non-exist"))
748a9306 3444 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3445 else if (instr(s, "does not exist"))
748a9306 3446 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3447 else if (instr(s, "not empty"))
748a9306 3448 SETERRNO(EBUSY,SS$_DEVOFFLINE);
1e422769 3449 else if (instr(s, "cannot access"))
748a9306 3450 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 3451 else
748a9306 3452 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 3453 return 0;
3454 }
3455 else { /* some mkdirs return no failure indication */
6b88bc9c 3456 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3457 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3458 anum = !anum;
3459 if (anum)
748a9306 3460 SETERRNO(0,0);
a0d0e21e 3461 else
748a9306 3462 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 3463 }
3464 return anum;
3465 }
3466 else
3467 return 0;
3468}
3469#endif
3470
3471PP(pp_mkdir)
3472{
4e35701f 3473 djSP; dTARGET;
5a211162 3474 int mode;
a0d0e21e
LW		 3475#ifndef HAS_MKDIR
3476 int oldumask;
3477#endif
2d8e6c8d 3478 STRLEN n_a;
5a211162
GS		 3479 char *tmps;
3480
3481 if (MAXARG > 1)
3482 mode = POPi;
3483 else
3484 mode = 0777;
3485
3486 tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3487
3488 TAINT_PROPER("mkdir");
3489#ifdef HAS_MKDIR
6ad3d225 3490 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3491#else
3492 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3493 oldumask = PerlLIO_umask(0);
3494 PerlLIO_umask(oldumask);
3495 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e
LW		 3496#endif
3497 RETURN;
3498}
3499
3500PP(pp_rmdir)
3501{
4e35701f 3502 djSP; dTARGET;
a0d0e21e 3503 char *tmps;
2d8e6c8d 3504 STRLEN n_a;
a0d0e21e 3505
2d8e6c8d 3506 tmps = POPpx;
a0d0e21e
LW		 3507 TAINT_PROPER("rmdir");
3508#ifdef HAS_RMDIR
6ad3d225 3509 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e
LW		 3510#else
3511 XPUSHi( dooneliner("rmdir", tmps) );
3512#endif
3513 RETURN;
3514}
3515
3516/* Directory calls. */
3517
3518PP(pp_open_dir)
3519{
4e35701f 3520 djSP;
a0d0e21e 3521#if defined(Direntry_t) && defined(HAS_READDIR)
2d8e6c8d
GS		 3522 STRLEN n_a;
3523 char *dirname = POPpx;
a0d0e21e
LW		 3524 GV *gv = (GV*)POPs;
3525 register IO *io = GvIOn(gv);
3526
3527 if (!io)
3528 goto nope;
3529
3530 if (IoDIRP(io))
6ad3d225
GS		 3531 PerlDir_close(IoDIRP(io));
3532 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3533 goto nope;
3534
3535 RETPUSHYES;
3536nope:
3537 if (!errno)
748a9306 3538 SETERRNO(EBADF,RMS$_DIR);
a0d0e21e
LW		 3539 RETPUSHUNDEF;
3540#else
cea2e8a9 3541 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3542#endif
3543}
3544
3545PP(pp_readdir)
3546{
4e35701f 3547 djSP;
a0d0e21e
LW		 3548#if defined(Direntry_t) && defined(HAS_READDIR)
3549#ifndef I_DIRENT
20ce7b12 3550 Direntry_t *readdir (DIR *);
a0d0e21e
LW		 3551#endif
3552 register Direntry_t *dp;
3553 GV *gv = (GV*)POPs;
3554 register IO *io = GvIOn(gv);
fb73857a 3555 SV *sv;
a0d0e21e
LW		 3556
3557 if (!io || !IoDIRP(io))
3558 goto nope;
3559
3560 if (GIMME == G_ARRAY) {
3561 /*SUPPRESS 560*/
155aba94 3562 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
a0d0e21e 3563#ifdef DIRNAMLEN
79cb57f6 3564 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3565#else
fb73857a 3566 sv = newSVpv(dp->d_name, 0);
3567#endif
3568#ifndef INCOMPLETE_TAINTS
26fb8f1f
GS		 3569 if (!(IoFLAGS(io) & IOf_UNTAINT))
3570 SvTAINTED_on(sv);
a0d0e21e 3571#endif
fb73857a 3572 XPUSHs(sv_2mortal(sv));
a0d0e21e
LW		 3573 }