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Add non-blocking thread doneness checking
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
cb50131a 3 * Copyright (c) 1991-2000, Larry Wall
a0d0e21e
LW		 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10/*
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
15 */
16
17#include "EXTERN.h"
864dbfa3 18#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 19#include "perl.h"
20
f1066039
JH		 21#ifdef I_SHADOW
22/* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 24 * The API is from SysV.
25 *
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
28 *
29 * --jhi */
30# ifdef __hpux__
c529f79d 31/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 33# undef MAXINT
34# endif
35# include <shadow.h>
8c0bfa08
PB		 36#endif
37
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
301e8125
NIS		 43#ifdef HAS_SYSCALL
44#ifdef __cplusplus
8ac85365
NIS		 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)
f269dd06
JH		 60# if !defined(INCLUDE_PROTOTYPES)
61# define INCLUDE_PROTOTYPES /* for <socks.h> */
62# define PERL_SOCKS_NEED_PROTOTYPES
63# endif
86959918 64# include <socks.h>
f269dd06
JH		 65# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
66# undef INCLUDE_PROTOTYPES
67# undef PERL_SOCKS_NEED_PROTOTYPES
68# endif
301e8125 69# endif
3fd537d4
JH		 70# ifdef I_NETDB
71# include <netdb.h>
72# endif
a0d0e21e
LW		 73# ifndef ENOTSOCK
74# ifdef I_NET_ERRNO
75# include <net/errno.h>
76# endif
77# endif
78#endif
79
80#ifdef HAS_SELECT
81#ifdef I_SYS_SELECT
a0d0e21e
LW		 82#include <sys/select.h>
83#endif
84#endif
a0d0e21e 85
dc45a647
MB		 86/* XXX Configure test needed.
87 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 88 applications, see "extern int errno in perl.h". Creating such
89 a test requires taking into account the differences between
90 compiling multithreaded and singlethreaded ($ccflags et al).
91 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 92*/
cb50131a 93#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 94extern int h_errno;
95#endif
96
97#ifdef HAS_PASSWD
98# ifdef I_PWD
99# include <pwd.h>
100# else
20ce7b12
GS		 101 struct passwd *getpwnam (char *);
102 struct passwd *getpwuid (Uid_t);
a0d0e21e 103# endif
28e8609d 104# ifdef HAS_GETPWENT
20ce7b12 105 struct passwd *getpwent (void);
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef HAS_GROUP
110# ifdef I_GRP
111# include <grp.h>
112# else
20ce7b12
GS		 113 struct group *getgrnam (char *);
114 struct group *getgrgid (Gid_t);
a0d0e21e 115# endif
28e8609d 116# ifdef HAS_GETGRENT
20ce7b12 117 struct group *getgrent (void);
28e8609d 118# endif
a0d0e21e
LW		 119#endif
120
121#ifdef I_UTIME
3730b96e 122# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 123# include <sys/utime.h>
124# else
125# include <utime.h>
126# endif
a0d0e21e 127#endif
a0d0e21e 128
54310121 129/* Put this after #includes because fork and vfork prototypes may conflict. */
130#ifndef HAS_VFORK
131# define vfork fork
132#endif
133
cbdc8872 134#ifdef HAS_CHSIZE
cd52b7b2 135# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
136# undef my_chsize
137# endif
6ad3d225 138# define my_chsize PerlLIO_chsize
cbdc8872 139#endif
140
ff68c719 141#ifdef HAS_FLOCK
142# define FLOCK flock
143#else /* no flock() */
144
36477c24 145 /* fcntl.h might not have been included, even if it exists, because
146 the current Configure only sets I_FCNTL if it's needed to pick up
147 the *_OK constants. Make sure it has been included before testing
148 the fcntl() locking constants. */
149# if defined(HAS_FCNTL) && !defined(I_FCNTL)
150# include <fcntl.h>
151# endif
152
ff68c719 153# if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
154# define FLOCK fcntl_emulate_flock
155# define FCNTL_EMULATE_FLOCK
156# else /* no flock() or fcntl(F_SETLK,...) */
157# ifdef HAS_LOCKF
158# define FLOCK lockf_emulate_flock
159# define LOCKF_EMULATE_FLOCK
160# endif /* lockf */
161# endif /* no flock() or fcntl(F_SETLK,...) */
162
163# ifdef FLOCK
20ce7b12 164 static int FLOCK (int, int);
ff68c719 165
166 /*
167 * These are the flock() constants. Since this sytems doesn't have
168 * flock(), the values of the constants are probably not available.
169 */
170# ifndef LOCK_SH
171# define LOCK_SH 1
172# endif
173# ifndef LOCK_EX
174# define LOCK_EX 2
175# endif
176# ifndef LOCK_NB
177# define LOCK_NB 4
178# endif
179# ifndef LOCK_UN
180# define LOCK_UN 8
181# endif
182# endif /* emulating flock() */
183
184#endif /* no flock() */
55497cff 185
85ab1d1d
JH		 186#define ZBTLEN 10
187static char zero_but_true[ZBTLEN + 1] = "0 but true";
188
5ff3f7a4
GS		 189#if defined(I_SYS_ACCESS) && !defined(R_OK)
190# include <sys/access.h>
191#endif
192
c529f79d
CB		 193#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
194# define FD_CLOEXEC 1 /* NeXT needs this */
195#endif
196
5ff3f7a4
GS		 197#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
198#undef PERL_EFF_ACCESS_W_OK
199#undef PERL_EFF_ACCESS_X_OK
200
201/* F_OK unused: if stat() cannot find it... */
202
203#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 204 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 205# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
206# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
207# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
208#endif
209
210#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 211# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 212# include <sys/security.h>
213# endif
c955f117
JH		 214# ifdef ACC_SELF
215 /* HP SecureWare */
216# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
217# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
218# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
219# else
220 /* SCO */
221# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
222# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
223# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
224# endif
5ff3f7a4
GS		 225#endif
226
227#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 228 /* AIX */
5ff3f7a4
GS		 229# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
230# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
231# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
232#endif
233
327c3667
GS		 234#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
235 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
236 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 237/* The Hard Way. */
327c3667 238STATIC int
7f4774ae 239S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 240{
5ff3f7a4
GS		 241 Uid_t ruid = getuid();
242 Uid_t euid = geteuid();
243 Gid_t rgid = getgid();
244 Gid_t egid = getegid();
245 int res;
246
146174a9 247 LOCK_CRED_MUTEX;
5ff3f7a4 248#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 249 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 250#else
251#ifdef HAS_SETREUID
252 if (setreuid(euid, ruid))
253#else
254#ifdef HAS_SETRESUID
255 if (setresuid(euid, ruid, (Uid_t)-1))
256#endif
257#endif
cea2e8a9 258 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 259#endif
260
261#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 262 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 263#else
264#ifdef HAS_SETREGID
265 if (setregid(egid, rgid))
266#else
267#ifdef HAS_SETRESGID
268 if (setresgid(egid, rgid, (Gid_t)-1))
269#endif
270#endif
cea2e8a9 271 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 272#endif
273
274 res = access(path, mode);
275
276#ifdef HAS_SETREUID
277 if (setreuid(ruid, euid))
278#else
279#ifdef HAS_SETRESUID
280 if (setresuid(ruid, euid, (Uid_t)-1))
281#endif
282#endif
cea2e8a9 283 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 284
285#ifdef HAS_SETREGID
286 if (setregid(rgid, egid))
287#else
288#ifdef HAS_SETRESGID
289 if (setresgid(rgid, egid, (Gid_t)-1))
290#endif
291#endif
cea2e8a9 292 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 293 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 294
295 return res;
296}
297# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
298# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
299# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
300#endif
301
302#if !defined(PERL_EFF_ACCESS_R_OK)
327c3667 303STATIC int
7f4774ae 304S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 305{
cea2e8a9 306 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 307 /*NOTREACHED*/
308 return -1;
309}
310#endif
311
a0d0e21e
LW		 312PP(pp_backtick)
313{
4e35701f 314 djSP; dTARGET;
760ac839 315 PerlIO *fp;
2d8e6c8d
GS		 316 STRLEN n_a;
317 char *tmps = POPpx;
54310121 318 I32 gimme = GIMME_V;
16fe6d59 319 char *mode = "r";
54310121 320
a0d0e21e 321 TAINT_PROPER("``");
16fe6d59
GS		 322 if (PL_op->op_private & OPpOPEN_IN_RAW)
323 mode = "rb";
324 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
325 mode = "rt";
326 fp = PerlProc_popen(tmps, mode);
a0d0e21e 327 if (fp) {
54310121 328 if (gimme == G_VOID) {
96827780
MB		 329 char tmpbuf[256];
330 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 331 /*SUPPRESS 530*/
332 ;
333 }
334 else if (gimme == G_SCALAR) {
aa689395 335 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 336 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
337 /*SUPPRESS 530*/
338 ;
339 XPUSHs(TARG);
aa689395 340 SvTAINTED_on(TARG);
a0d0e21e
LW		 341 }
342 else {
343 SV *sv;
344
345 for (;;) {
8d6dde3e 346 sv = NEWSV(56, 79);
a0d0e21e
LW		 347 if (sv_gets(sv, fp, 0) == Nullch) {
348 SvREFCNT_dec(sv);
349 break;
350 }
351 XPUSHs(sv_2mortal(sv));
352 if (SvLEN(sv) - SvCUR(sv) > 20) {
353 SvLEN_set(sv, SvCUR(sv)+1);
354 Renew(SvPVX(sv), SvLEN(sv), char);
355 }
aa689395 356 SvTAINTED_on(sv);
a0d0e21e
LW		 357 }
358 }
6ad3d225 359 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 360 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 361 }
362 else {
f86702cc 363 STATUS_NATIVE_SET(-1);
54310121 364 if (gimme == G_SCALAR)
a0d0e21e
LW		 365 RETPUSHUNDEF;
366 }
367
368 RETURN;
369}
370
371PP(pp_glob)
372{
373 OP *result;
f5284f61
IZ		 374 tryAMAGICunTARGET(iter, -1);
375
71686f12
GS		 376 /* Note that we only ever get here if File::Glob fails to load
377 * without at the same time croaking, for some reason, or if
378 * perl was built with PERL_EXTERNAL_GLOB */
379
a0d0e21e 380 ENTER;
a0d0e21e 381
c90c0ff4 382#ifndef VMS
3280af22 383 if (PL_tainting) {
7bac28a0 384 /*
385 * The external globbing program may use things we can't control,
386 * so for security reasons we must assume the worst.
387 */
388 TAINT;
22c35a8c 389 taint_proper(PL_no_security, "glob");
7bac28a0 390 }
c90c0ff4 391#endif /* !VMS */
7bac28a0 392
3280af22
NIS		 393 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
394 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 395
3280af22 396 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 397 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 398#ifndef DOSISH
399#ifndef CSH
6b88bc9c 400 *SvPVX(PL_rs) = '\n';
a0d0e21e 401#endif /* !CSH */
55497cff 402#endif /* !DOSISH */
c07a80fd 403
a0d0e21e
LW		 404 result = do_readline();
405 LEAVE;
406 return result;
407}
408
15e52e56 409#if 0 /* XXX never used! */
a0d0e21e
LW		 410PP(pp_indread)
411{
2d8e6c8d
GS		 412 STRLEN n_a;
413 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
a0d0e21e
LW		 414 return do_readline();
415}
15e52e56 416#endif
a0d0e21e
LW		 417
418PP(pp_rcatline)
419{
146174a9 420 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 421 return do_readline();
422}
423
424PP(pp_warn)
425{
4e35701f 426 djSP; dMARK;
06bf62c7 427 SV *tmpsv;
a0d0e21e 428 char *tmps;
06bf62c7 429 STRLEN len;
a0d0e21e
LW		 430 if (SP - MARK != 1) {
431 dTARGET;
3280af22 432 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 433 tmpsv = TARG;
a0d0e21e
LW		 434 SP = MARK + 1;
435 }
436 else {
06bf62c7 437 tmpsv = TOPs;
a0d0e21e 438 }
06bf62c7
GS		 439 tmps = SvPV(tmpsv, len);
440 if (!tmps || !len) {
4e6ea2c3
GS		 441 SV *error = ERRSV;
442 (void)SvUPGRADE(error, SVt_PV);
443 if (SvPOK(error) && SvCUR(error))
444 sv_catpv(error, "\t...caught");
06bf62c7
GS		 445 tmpsv = error;
446 tmps = SvPV(tmpsv, len);
a0d0e21e 447 }
06bf62c7
GS		 448 if (!tmps || !len)
449 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
450
cb50131a 451 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 452 RETSETYES;
453}
454
455PP(pp_die)
456{
4e35701f 457 djSP; dMARK;
a0d0e21e 458 char *tmps;
06bf62c7
GS		 459 SV *tmpsv;
460 STRLEN len;
461 bool multiarg = 0;
a0d0e21e
LW		 462 if (SP - MARK != 1) {
463 dTARGET;
3280af22 464 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 465 tmpsv = TARG;
466 tmps = SvPV(tmpsv, len);
467 multiarg = 1;
a0d0e21e
LW		 468 SP = MARK + 1;
469 }
470 else {
4e6ea2c3 471 tmpsv = TOPs;
06bf62c7 472 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 473 }
06bf62c7 474 if (!tmps || !len) {
4e6ea2c3
GS		 475 SV *error = ERRSV;
476 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 477 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
478 if (!multiarg)
4e6ea2c3 479 SvSetSV(error,tmpsv);
06bf62c7 480 else if (sv_isobject(error)) {
05423cc9
GS		 481 HV *stash = SvSTASH(SvRV(error));
482 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
483 if (gv) {
146174a9 484 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 485 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 486 EXTEND(SP, 3);
487 PUSHMARK(SP);
488 PUSHs(error);
489 PUSHs(file);
490 PUSHs(line);
491 PUTBACK;
864dbfa3
GS		 492 call_sv((SV*)GvCV(gv),
493 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 494 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 495 }
496 }
cea2e8a9 497 DIE(aTHX_ Nullch);
4e6ea2c3
GS		 498 }
499 else {
500 if (SvPOK(error) && SvCUR(error))
501 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 502 tmpsv = error;
503 tmps = SvPV(tmpsv, len);
4e6ea2c3 504 }
a0d0e21e 505 }
06bf62c7
GS		 506 if (!tmps || !len)
507 tmpsv = sv_2mortal(newSVpvn("Died", 4));
508
cb50131a 509 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 510}
511
512/* I/O. */
513
514PP(pp_open)
515{
4e35701f 516 djSP; dTARGET;
a0d0e21e
LW		 517 GV *gv;
518 SV *sv;
6aa016ca 519 SV *name = Nullsv;
6170680b 520 I32 have_name = 0;
a0d0e21e
LW		 521 char *tmps;
522 STRLEN len;
4592e6ca 523 MAGIC *mg;
a0d0e21e 524
6170680b
IZ		 525 if (MAXARG > 2) {
526 name = POPs;
527 have_name = 1;
528 }
a0d0e21e
LW		 529 if (MAXARG > 1)
530 sv = POPs;
5f05dabc 531 if (!isGV(TOPs))
cea2e8a9 532 DIE(aTHX_ PL_no_usym, "filehandle");
5f05dabc 533 if (MAXARG <= 1)
534 sv = GvSV(TOPs);
a0d0e21e 535 gv = (GV*)POPs;
5f05dabc 536 if (!isGV(gv))
cea2e8a9 537 DIE(aTHX_ PL_no_usym, "filehandle");
36477c24 538 if (GvIOp(gv))
539 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 540
155aba94 541 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
4592e6ca
NIS		 542 PUSHMARK(SP);
543 XPUSHs(SvTIED_obj((SV*)gv, mg));
544 XPUSHs(sv);
6170680b
IZ		 545 if (have_name)
546 XPUSHs(name);
4592e6ca
NIS		 547 PUTBACK;
548 ENTER;
864dbfa3 549 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 550 LEAVE;
551 SPAGAIN;
552 RETURN;
553 }
554
a0d0e21e 555 tmps = SvPV(sv, len);
6170680b 556 if (do_open9(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, name, have_name))
3280af22
NIS		 557 PUSHi( (I32)PL_forkprocess );
558 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 559 PUSHi(0);
560 else
561 RETPUSHUNDEF;
562 RETURN;
563}
564
565PP(pp_close)
566{
4e35701f 567 djSP;
a0d0e21e 568 GV *gv;
1d603a67 569 MAGIC *mg;
a0d0e21e
LW		 570
571 if (MAXARG == 0)
3280af22 572 gv = PL_defoutgv;
a0d0e21e
LW		 573 else
574 gv = (GV*)POPs;
1d603a67 575
155aba94 576 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67 577 PUSHMARK(SP);
33c27489 578 XPUSHs(SvTIED_obj((SV*)gv, mg));
1d603a67
GB		 579 PUTBACK;
580 ENTER;
864dbfa3 581 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 582 LEAVE;
583 SPAGAIN;
584 RETURN;
585 }
a0d0e21e 586 EXTEND(SP, 1);
54310121 587 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 588 RETURN;
589}
590
591PP(pp_pipe_op)
592{
4e35701f 593 djSP;
a0d0e21e
LW		 594#ifdef HAS_PIPE
595 GV *rgv;
596 GV *wgv;
597 register IO *rstio;
598 register IO *wstio;
599 int fd[2];
600
601 wgv = (GV*)POPs;
602 rgv = (GV*)POPs;
603
604 if (!rgv || !wgv)
605 goto badexit;
606
4633a7c4 607 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 608 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 609 rstio = GvIOn(rgv);
610 wstio = GvIOn(wgv);
611
612 if (IoIFP(rstio))
613 do_close(rgv, FALSE);
614 if (IoIFP(wstio))
615 do_close(wgv, FALSE);
616
6ad3d225 617 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 618 goto badexit;
619
760ac839
LW		 620 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
621 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
a0d0e21e 622 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 623 IoTYPE(rstio) = IoTYPE_RDONLY;
624 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 625
626 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 627 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 628 else PerlLIO_close(fd[0]);
760ac839 629 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 630 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 631 goto badexit;
632 }
4771b018
GS		 633#if defined(HAS_FCNTL) && defined(F_SETFD)
634 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
635 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
636#endif
a0d0e21e
LW		 637 RETPUSHYES;
638
639badexit:
640 RETPUSHUNDEF;
641#else
cea2e8a9 642 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 643#endif
644}
645
646PP(pp_fileno)
647{
4e35701f 648 djSP; dTARGET;
a0d0e21e
LW		 649 GV *gv;
650 IO *io;
760ac839 651 PerlIO *fp;
4592e6ca
NIS		 652 MAGIC *mg;
653
a0d0e21e
LW		 654 if (MAXARG < 1)
655 RETPUSHUNDEF;
656 gv = (GV*)POPs;
4592e6ca
NIS		 657
658 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
659 PUSHMARK(SP);
660 XPUSHs(SvTIED_obj((SV*)gv, mg));
661 PUTBACK;
662 ENTER;
864dbfa3 663 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 664 LEAVE;
665 SPAGAIN;
666 RETURN;
667 }
668
a0d0e21e
LW		 669 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
670 RETPUSHUNDEF;
760ac839 671 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 672 RETURN;
673}
674
675PP(pp_umask)
676{
4e35701f 677 djSP; dTARGET;
761237fe 678 Mode_t anum;
a0d0e21e
LW		 679
680#ifdef HAS_UMASK
681 if (MAXARG < 1) {
6ad3d225
GS		 682 anum = PerlLIO_umask(0);
683 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 684 }
685 else
6ad3d225 686 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 687 TAINT_PROPER("umask");
688 XPUSHi(anum);
689#else
eec2d3df
GS		 690 /* Only DIE if trying to restrict permissions on `user' (self).
691 * Otherwise it's harmless and more useful to just return undef
692 * since 'group' and 'other' concepts probably don't exist here. */
693 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 694 DIE(aTHX_ "umask not implemented");
6b88bc9c 695 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 696#endif
697 RETURN;
698}
699
700PP(pp_binmode)
701{
4e35701f 702 djSP;
a0d0e21e
LW		 703 GV *gv;
704 IO *io;
760ac839 705 PerlIO *fp;
4592e6ca 706 MAGIC *mg;
16fe6d59 707 SV *discp = Nullsv;
a0d0e21e
LW		 708
709 if (MAXARG < 1)
710 RETPUSHUNDEF;
16fe6d59
GS		 711 if (MAXARG > 1)
712 discp = POPs;
a0d0e21e 713
301e8125 714 gv = (GV*)POPs;
4592e6ca
NIS		 715
716 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
717 PUSHMARK(SP);
718 XPUSHs(SvTIED_obj((SV*)gv, mg));
16fe6d59
GS		 719 if (discp)
720 XPUSHs(discp);
4592e6ca
NIS		 721 PUTBACK;
722 ENTER;
864dbfa3 723 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 724 LEAVE;
725 SPAGAIN;
726 RETURN;
727 }
a0d0e21e
LW		 728
729 EXTEND(SP, 1);
730 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
55497cff 731 RETPUSHUNDEF;
a0d0e21e 732
301e8125 733 if (do_binmode(fp,IoTYPE(io),mode_from_discipline(discp)))
a0d0e21e
LW		 734 RETPUSHYES;
735 else
736 RETPUSHUNDEF;
a0d0e21e
LW		 737}
738
739PP(pp_tie)
740{
4e35701f 741 djSP;
e336de0d 742 dMARK;
a0d0e21e
LW		 743 SV *varsv;
744 HV* stash;
745 GV *gv;
a0d0e21e 746 SV *sv;
3280af22 747 I32 markoff = MARK - PL_stack_base;
a0d0e21e 748 char *methname;
6b05c17a 749 int how = 'P';
e336de0d 750 U32 items;
2d8e6c8d 751 STRLEN n_a;
a0d0e21e 752
e336de0d 753 varsv = *++MARK;
6b05c17a
NIS		 754 switch(SvTYPE(varsv)) {
755 case SVt_PVHV:
756 methname = "TIEHASH";
757 break;
758 case SVt_PVAV:
759 methname = "TIEARRAY";
760 break;
761 case SVt_PVGV:
762 methname = "TIEHANDLE";
763 how = 'q';
764 break;
765 default:
766 methname = "TIESCALAR";
767 how = 'q';
768 break;
769 }
e336de0d
GS		 770 items = SP - MARK++;
771 if (sv_isobject(*MARK)) {
6b05c17a 772 ENTER;
e788e7d3 773 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 774 PUSHMARK(SP);
775 EXTEND(SP,items);
776 while (items--)
777 PUSHs(*MARK++);
778 PUTBACK;
864dbfa3 779 call_method(methname, G_SCALAR);
301e8125 780 }
6b05c17a 781 else {
864dbfa3 782 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 783 * perhaps to get different error message ?
784 */
e336de0d 785 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 786 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
cea2e8a9 787 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
301e8125 788 methname, SvPV(*MARK,n_a));
6b05c17a
NIS		 789 }
790 ENTER;
e788e7d3 791 PUSHSTACKi(PERLSI_MAGIC);
e336de0d
GS		 792 PUSHMARK(SP);
793 EXTEND(SP,items);
794 while (items--)
795 PUSHs(*MARK++);
796 PUTBACK;
864dbfa3 797 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 798 }
a0d0e21e
LW		 799 SPAGAIN;
800
801 sv = TOPs;
d3acc0f7 802 POPSTACK;
a0d0e21e 803 if (sv_isobject(sv)) {
33c27489 804 sv_unmagic(varsv, how);
68a4a7e4
JH		 805 /* Croak if a self-tie is attempted */
806 if (varsv == SvRV(sv))
807 Perl_croak(aTHX_ "Self-ties are not supported");
808 sv_magic(varsv, sv, how, Nullch, 0);
a0d0e21e
LW		 809 }
810 LEAVE;
3280af22 811 SP = PL_stack_base + markoff;
a0d0e21e
LW		 812 PUSHs(sv);
813 RETURN;
814}
815
816PP(pp_untie)
817{
4e35701f 818 djSP;
33c27489
GS		 819 SV *sv = POPs;
820 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
55497cff 821
cbdc8872 822 MAGIC * mg ;
155aba94 823 if ((mg = SvTIED_mg(sv, how))) {
a29a5827
NIS		 824 SV *obj = SvRV(mg->mg_obj);
825 GV *gv;
826 CV *cv = NULL;
a29a5827
NIS		 827 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
828 isGV(gv) && (cv = GvCV(gv))) {
829 PUSHMARK(SP);
830 XPUSHs(SvTIED_obj((SV*)gv, mg));
301e8125 831 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
a29a5827
NIS		 832 PUTBACK;
833 ENTER;
834 call_sv((SV *)cv, G_VOID);
835 LEAVE;
836 SPAGAIN;
cbdc8872 837 }
301e8125
NIS		 838 else if (ckWARN(WARN_UNTIE)) {
839 if (mg && SvREFCNT(obj) > 1)
840 Perl_warner(aTHX_ WARN_UNTIE,
841 "untie attempted while %"UVuf" inner references still exist",
842 (UV)SvREFCNT(obj) - 1 ) ;
843 }
cbdc8872 844 }
33c27489 845 sv_unmagic(sv, how);
55497cff 846 RETPUSHYES;
a0d0e21e
LW		 847}
848
c07a80fd 849PP(pp_tied)
850{
4e35701f 851 djSP;
33c27489
GS		 852 SV *sv = POPs;
853 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
854 MAGIC *mg;
c07a80fd 855
155aba94 856 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 857 SV *osv = SvTIED_obj(sv, mg);
858 if (osv == mg->mg_obj)
859 osv = sv_mortalcopy(osv);
860 PUSHs(osv);
861 RETURN;
c07a80fd 862 }
c07a80fd 863 RETPUSHUNDEF;
864}
865
a0d0e21e
LW		 866PP(pp_dbmopen)
867{
4e35701f 868 djSP;
a0d0e21e
LW		 869 HV *hv;
870 dPOPPOPssrl;
871 HV* stash;
872 GV *gv;
a0d0e21e
LW		 873 SV *sv;
874
875 hv = (HV*)POPs;
876
3280af22 877 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 878 sv_setpv(sv, "AnyDBM_File");
879 stash = gv_stashsv(sv, FALSE);
8ebc5c01 880 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 881 PUTBACK;
864dbfa3 882 require_pv("AnyDBM_File.pm");
a0d0e21e 883 SPAGAIN;
8ebc5c01 884 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 885 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 886 }
887
57d3b86d 888 ENTER;
924508f0 889 PUSHMARK(SP);
6b05c17a 890
924508f0 891 EXTEND(SP, 5);
a0d0e21e
LW		 892 PUSHs(sv);
893 PUSHs(left);
894 if (SvIV(right))
b448e4fe 895 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 896 else
b448e4fe 897 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 898 PUSHs(right);
57d3b86d 899 PUTBACK;
864dbfa3 900 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 901 SPAGAIN;
902
903 if (!sv_isobject(TOPs)) {
924508f0
GS		 904 SP--;
905 PUSHMARK(SP);
a0d0e21e
LW		 906 PUSHs(sv);
907 PUSHs(left);
b448e4fe 908 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 909 PUSHs(right);
a0d0e21e 910 PUTBACK;
864dbfa3 911 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 912 SPAGAIN;
913 }
914
6b05c17a 915 if (sv_isobject(TOPs)) {
301e8125 916 sv_unmagic((SV *) hv, 'P');
a0d0e21e 917 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
6b05c17a 918 }
a0d0e21e
LW		 919 LEAVE;
920 RETURN;
921}
922
923PP(pp_dbmclose)
924{
cea2e8a9 925 return pp_untie();
a0d0e21e
LW		 926}
927
928PP(pp_sselect)
929{
4e35701f 930 djSP; dTARGET;
a0d0e21e
LW		 931#ifdef HAS_SELECT
932 register I32 i;
933 register I32 j;
934 register char *s;
935 register SV *sv;
65202027 936 NV value;
a0d0e21e
LW		 937 I32 maxlen = 0;
938 I32 nfound;
939 struct timeval timebuf;
940 struct timeval *tbuf = &timebuf;
941 I32 growsize;
942 char *fd_sets[4];
2d8e6c8d 943 STRLEN n_a;
a0d0e21e
LW		 944#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
945 I32 masksize;
946 I32 offset;
947 I32 k;
948
949# if BYTEORDER & 0xf0000
950# define ORDERBYTE (0x88888888 - BYTEORDER)
951# else
952# define ORDERBYTE (0x4444 - BYTEORDER)
953# endif
954
955#endif
956
957 SP -= 4;
958 for (i = 1; i <= 3; i++) {
959 if (!SvPOK(SP[i]))
960 continue;
961 j = SvCUR(SP[i]);
962 if (maxlen < j)
963 maxlen = j;
964 }
965
5ff3f7a4 966/* little endians can use vecs directly */
a0d0e21e 967#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
5ff3f7a4 968# if SELECT_MIN_BITS > 1
f2da832e
JH		 969 /* If SELECT_MIN_BITS is greater than one we most probably will want
970 * to align the sizes with SELECT_MIN_BITS/8 because for example
971 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
f556e5b9 972 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
8f1f23e8 973 * on (sets/tests/clears bits) is 32 bits. */
f2da832e 974 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
5ff3f7a4 975# else
4633a7c4 976 growsize = sizeof(fd_set);
5ff3f7a4
GS		 977# endif
978# else
979# ifdef NFDBITS
a0d0e21e 980
5ff3f7a4
GS		 981# ifndef NBBY
982# define NBBY 8
983# endif
a0d0e21e
LW		 984
985 masksize = NFDBITS / NBBY;
5ff3f7a4 986# else
a0d0e21e 987 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 988# endif
a0d0e21e
LW		 989 growsize = maxlen + (masksize - (maxlen % masksize));
990 Zero(&fd_sets[0], 4, char*);
991#endif
992
993 sv = SP[4];
994 if (SvOK(sv)) {
995 value = SvNV(sv);
996 if (value < 0.0)
997 value = 0.0;
998 timebuf.tv_sec = (long)value;
65202027 999 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1000 timebuf.tv_usec = (long)(value * 1000000.0);
1001 }
1002 else
1003 tbuf = Null(struct timeval*);
1004
1005 for (i = 1; i <= 3; i++) {
1006 sv = SP[i];
1007 if (!SvOK(sv)) {
1008 fd_sets[i] = 0;
1009 continue;
1010 }
1011 else if (!SvPOK(sv))
2d8e6c8d 1012 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1013 j = SvLEN(sv);
1014 if (j < growsize) {
1015 Sv_Grow(sv, growsize);
a0d0e21e 1016 }
c07a80fd 1017 j = SvCUR(sv);
1018 s = SvPVX(sv) + j;
1019 while (++j <= growsize) {
1020 *s++ = '\0';
1021 }
1022
a0d0e21e
LW		 1023#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1024 s = SvPVX(sv);
1025 New(403, fd_sets[i], growsize, char);
1026 for (offset = 0; offset < growsize; offset += masksize) {
1027 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1028 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1029 }
1030#else
1031 fd_sets[i] = SvPVX(sv);
1032#endif
1033 }
1034
6ad3d225 1035 nfound = PerlSock_select(
a0d0e21e
LW		 1036 maxlen * 8,
1037 (Select_fd_set_t) fd_sets[1],
1038 (Select_fd_set_t) fd_sets[2],
1039 (Select_fd_set_t) fd_sets[3],
1040 tbuf);
1041 for (i = 1; i <= 3; i++) {
1042 if (fd_sets[i]) {
1043 sv = SP[i];
1044#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1045 s = SvPVX(sv);
1046 for (offset = 0; offset < growsize; offset += masksize) {
1047 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1048 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1049 }
1050 Safefree(fd_sets[i]);
1051#endif
1052 SvSETMAGIC(sv);
1053 }
1054 }
1055
1056 PUSHi(nfound);
1057 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1058 value = (NV)(timebuf.tv_sec) +
1059 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1060 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1061 sv_setnv(sv, value);
1062 }
1063 RETURN;
1064#else
cea2e8a9 1065 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1066#endif
1067}
1068
4633a7c4 1069void
864dbfa3 1070Perl_setdefout(pTHX_ GV *gv)
4633a7c4 1071{
11343788 1072 dTHR;
4633a7c4
LW		 1073 if (gv)
1074 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1075 if (PL_defoutgv)
1076 SvREFCNT_dec(PL_defoutgv);
1077 PL_defoutgv = gv;
4633a7c4
LW		 1078}
1079
a0d0e21e
LW		 1080PP(pp_select)
1081{
4e35701f 1082 djSP; dTARGET;
4633a7c4
LW		 1083 GV *newdefout, *egv;
1084 HV *hv;
1085
533c011a 1086 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1087
3280af22 1088 egv = GvEGV(PL_defoutgv);
4633a7c4 1089 if (!egv)
3280af22 1090 egv = PL_defoutgv;
4633a7c4
LW		 1091 hv = GvSTASH(egv);
1092 if (! hv)
3280af22 1093 XPUSHs(&PL_sv_undef);
4633a7c4 1094 else {
cbdc8872 1095 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1096 if (gvp && *gvp == egv) {
f7aaccc2 1097 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1098 XPUSHTARG;
1099 }
1100 else {
1101 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1102 }
4633a7c4
LW		 1103 }
1104
1105 if (newdefout) {
ded8aa31
GS		 1106 if (!GvIO(newdefout))
1107 gv_IOadd(newdefout);
4633a7c4
LW		 1108 setdefout(newdefout);
1109 }
1110
a0d0e21e
LW		 1111 RETURN;
1112}
1113
1114PP(pp_getc)
1115{
4e35701f 1116 djSP; dTARGET;
a0d0e21e 1117 GV *gv;
2ae324a7 1118 MAGIC *mg;
a0d0e21e 1119
32da55ab 1120 if (MAXARG == 0)
3280af22 1121 gv = PL_stdingv;
a0d0e21e
LW		 1122 else
1123 gv = (GV*)POPs;
2ae324a7 1124
155aba94 1125 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
54310121 1126 I32 gimme = GIMME_V;
2ae324a7 1127 PUSHMARK(SP);
33c27489 1128 XPUSHs(SvTIED_obj((SV*)gv, mg));
2ae324a7 1129 PUTBACK;
1130 ENTER;
864dbfa3 1131 call_method("GETC", gimme);
2ae324a7 1132 LEAVE;
1133 SPAGAIN;
54310121 1134 if (gimme == G_SCALAR)
1135 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1136 RETURN;
1137 }
9bc64814 1138 if (!gv || do_eof(gv)) /* make sure we have fp with something */
a0d0e21e 1139 RETPUSHUNDEF;
bbce6d69 1140 TAINT;
a0d0e21e 1141 sv_setpv(TARG, " ");
9bc64814 1142 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
a0d0e21e
LW		 1143 PUSHTARG;
1144 RETURN;
1145}
1146
1147PP(pp_read)
1148{
cea2e8a9 1149 return pp_sysread();
a0d0e21e
LW		 1150}
1151
76e3520e 1152STATIC OP *
cea2e8a9 1153S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1154{
11343788 1155 dTHR;
c09156bb 1156 register PERL_CONTEXT *cx;
54310121 1157 I32 gimme = GIMME_V;
a0d0e21e
LW		 1158 AV* padlist = CvPADLIST(cv);
1159 SV** svp = AvARRAY(padlist);
1160
1161 ENTER;
1162 SAVETMPS;
1163
1164 push_return(retop);
146174a9 1165 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1166 PUSHFORMAT(cx);
146174a9 1167 SAVEVPTR(PL_curpad);
3280af22 1168 PL_curpad = AvARRAY((AV*)svp[1]);
a0d0e21e 1169
4633a7c4 1170 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1171 return CvSTART(cv);
1172}
1173
1174PP(pp_enterwrite)
1175{
4e35701f 1176 djSP;
a0d0e21e
LW		 1177 register GV *gv;
1178 register IO *io;
1179 GV *fgv;
1180 CV *cv;
1181
1182 if (MAXARG == 0)
3280af22 1183 gv = PL_defoutgv;
a0d0e21e
LW		 1184 else {
1185 gv = (GV*)POPs;
1186 if (!gv)
3280af22 1187 gv = PL_defoutgv;
a0d0e21e
LW		 1188 }
1189 EXTEND(SP, 1);
1190 io = GvIO(gv);
1191 if (!io) {
1192 RETPUSHNO;
1193 }
1194 if (IoFMT_GV(io))
1195 fgv = IoFMT_GV(io);
1196 else
1197 fgv = gv;
1198
1199 cv = GvFORM(fgv);
a0d0e21e 1200 if (!cv) {
2dd78f96 1201 char *name = NULL;
a0d0e21e 1202 if (fgv) {
748a9306 1203 SV *tmpsv = sv_newmortal();
43693395 1204 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1205 name = SvPV_nolen(tmpsv);
a0d0e21e 1206 }
2dd78f96
JH		 1207 if (name && *name)
1208 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1209 DIE(aTHX_ "Not a format reference");
a0d0e21e 1210 }
44a8e56a 1211 if (CvCLONE(cv))
1212 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1213
44a8e56a 1214 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1215 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1216}
1217
1218PP(pp_leavewrite)
1219{
4e35701f 1220 djSP;
a0d0e21e
LW		 1221 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1222 register IO *io = GvIOp(gv);
760ac839
LW		 1223 PerlIO *ofp = IoOFP(io);
1224 PerlIO *fp;
a0d0e21e
LW		 1225 SV **newsp;
1226 I32 gimme;
c09156bb 1227 register PERL_CONTEXT *cx;
a0d0e21e 1228
760ac839 1229 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22
NIS		 1230 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1231 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1232 PL_formtarget != PL_toptarget)
a0d0e21e 1233 {
4633a7c4
LW		 1234 GV *fgv;
1235 CV *cv;
a0d0e21e
LW		 1236 if (!IoTOP_GV(io)) {
1237 GV *topgv;
46fc3d4c 1238 SV *topname;
a0d0e21e
LW		 1239
1240 if (!IoTOP_NAME(io)) {
1241 if (!IoFMT_NAME(io))
1242 IoFMT_NAME(io) = savepv(GvNAME(gv));
cea2e8a9 1243 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
46fc3d4c 1244 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1245 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1246 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1247 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1248 else
1249 IoTOP_NAME(io) = savepv("top");
1250 }
1251 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1252 if (!topgv || !GvFORM(topgv)) {
1253 IoLINES_LEFT(io) = 100000000;
1254 goto forget_top;
1255 }
1256 IoTOP_GV(io) = topgv;
1257 }
748a9306
LW		 1258 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1259 I32 lines = IoLINES_LEFT(io);
3280af22 1260 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1261 if (lines <= 0) /* Yow, header didn't even fit!!! */
1262 goto forget_top;
748a9306
LW		 1263 while (lines-- > 0) {
1264 s = strchr(s, '\n');
1265 if (!s)
1266 break;
1267 s++;
1268 }
1269 if (s) {
3280af22
NIS		 1270 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1271 sv_chop(PL_formtarget, s);
1272 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1273 }
1274 }
a0d0e21e 1275 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
3280af22 1276 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
a0d0e21e
LW		 1277 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1278 IoPAGE(io)++;
3280af22 1279 PL_formtarget = PL_toptarget;
748a9306 1280 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1281 fgv = IoTOP_GV(io);
1282 if (!fgv)
cea2e8a9 1283 DIE(aTHX_ "bad top format reference");
4633a7c4 1284 cv = GvFORM(fgv);
2dd78f96
JH		 1285 {
1286 char *name = NULL;
1287 if (!cv) {
1288 SV *sv = sv_newmortal();
1289 gv_efullname4(sv, fgv, Nullch, FALSE);
1290 name = SvPV_nolen(sv);
1291 }
1292 if (name && *name)
1293 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1294 /* why no:
1295 else
1296 DIE(aTHX_ "Undefined top format called");
1297 ?*/
4633a7c4 1298 }
44a8e56a 1299 if (CvCLONE(cv))
1300 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1301 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1302 }
1303
1304 forget_top:
3280af22 1305 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1306 POPFORMAT(cx);
1307 LEAVE;
1308
1309 fp = IoOFP(io);
1310 if (!fp) {
599cee73 1311 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
cb50131a 1312 if (IoIFP(io)) {
2dd78f96
JH		 1313 /* integrate with report_evil_fh()? */
1314 char *name = NULL;
1315 if (isGV(gv)) {
1316 SV* sv = sv_newmortal();
1317 gv_efullname4(sv, gv, Nullch, FALSE);
1318 name = SvPV_nolen(sv);
1319 }
1320 if (name && *name)
1321 Perl_warner(aTHX_ WARN_IO,
1322 "Filehandle %s opened only for input", name);
1323 else
1324 Perl_warner(aTHX_ WARN_IO,
1325 "Filehandle opened only for input");
cb50131a 1326 }
599cee73 1327 else if (ckWARN(WARN_CLOSED))
bc37a18f 1328 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1329 }
3280af22 1330 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1331 }
1332 else {
3280af22 1333 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1334 if (ckWARN(WARN_IO))
cea2e8a9 1335 Perl_warner(aTHX_ WARN_IO, "page overflow");
a0d0e21e 1336 }
3280af22 1337 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
760ac839 1338 PerlIO_error(fp))
3280af22 1339 PUSHs(&PL_sv_no);
a0d0e21e 1340 else {
3280af22
NIS		 1341 FmLINES(PL_formtarget) = 0;
1342 SvCUR_set(PL_formtarget, 0);
1343 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1344 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1345 (void)PerlIO_flush(fp);
3280af22 1346 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1347 }
1348 }
3280af22 1349 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1350 PUTBACK;
1351 return pop_return();
1352}
1353
1354PP(pp_prtf)
1355{
4e35701f 1356 djSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1357 GV *gv;
1358 IO *io;
760ac839 1359 PerlIO *fp;
26db47c4 1360 SV *sv;
46fc3d4c 1361 MAGIC *mg;
2d8e6c8d 1362 STRLEN n_a;
a0d0e21e 1363
533c011a 1364 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1365 gv = (GV*)*++MARK;
1366 else
3280af22 1367 gv = PL_defoutgv;
46fc3d4c 1368
155aba94 1369 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
46fc3d4c 1370 if (MARK == ORIGMARK) {
4352c267 1371 MEXTEND(SP, 1);
46fc3d4c 1372 ++MARK;
1373 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1374 ++SP;
1375 }
1376 PUSHMARK(MARK - 1);
33c27489 1377 *MARK = SvTIED_obj((SV*)gv, mg);
46fc3d4c 1378 PUTBACK;
1379 ENTER;
864dbfa3 1380 call_method("PRINTF", G_SCALAR);
46fc3d4c 1381 LEAVE;
1382 SPAGAIN;
1383 MARK = ORIGMARK + 1;
1384 *MARK = *SP;
1385 SP = MARK;
1386 RETURN;
1387 }
1388
26db47c4 1389 sv = NEWSV(0,0);
a0d0e21e 1390 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1391 dTHR;
1392 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1393 report_evil_fh(gv, io, PL_op->op_type);
748a9306 1394 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1395 goto just_say_no;
1396 }
1397 else if (!(fp = IoOFP(io))) {
599cee73 1398 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
2dd78f96 1399 /* integrate with report_evil_fh()? */
cb50131a 1400 if (IoIFP(io)) {
2dd78f96
JH		 1401 char *name = NULL;
1402 if (isGV(gv)) {
1403 gv_efullname4(sv, gv, Nullch, FALSE);
1404 name = SvPV_nolen(sv);
1405 }
1406 if (name && *name)
1407 Perl_warner(aTHX_ WARN_IO,
1408 "Filehandle %s opened only for input", name);
1409 else
1410 Perl_warner(aTHX_ WARN_IO,
1411 "Filehandle opened only for input");
cb50131a 1412 }
599cee73 1413 else if (ckWARN(WARN_CLOSED))
bc37a18f 1414 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1415 }
748a9306 1416 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
a0d0e21e
LW		 1417 goto just_say_no;
1418 }
1419 else {
1420 do_sprintf(sv, SP - MARK, MARK + 1);
1421 if (!do_print(sv, fp))
1422 goto just_say_no;
1423
1424 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1425 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1426 goto just_say_no;
1427 }
1428 SvREFCNT_dec(sv);
1429 SP = ORIGMARK;
3280af22 1430 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1431 RETURN;
1432
1433 just_say_no:
1434 SvREFCNT_dec(sv);
1435 SP = ORIGMARK;
3280af22 1436 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1437 RETURN;
1438}
1439
c07a80fd 1440PP(pp_sysopen)
1441{
4e35701f 1442 djSP;
c07a80fd 1443 GV *gv;
c07a80fd 1444 SV *sv;
1445 char *tmps;
1446 STRLEN len;
1447 int mode, perm;
1448
1449 if (MAXARG > 3)
1450 perm = POPi;
1451 else
1452 perm = 0666;
1453 mode = POPi;
1454 sv = POPs;
1455 gv = (GV *)POPs;
1456
4592e6ca
NIS		 1457 /* Need TIEHANDLE method ? */
1458
c07a80fd 1459 tmps = SvPV(sv, len);
1460 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1461 IoLINES(GvIOp(gv)) = 0;
3280af22 1462 PUSHs(&PL_sv_yes);
c07a80fd 1463 }
1464 else {
3280af22 1465 PUSHs(&PL_sv_undef);
c07a80fd 1466 }
1467 RETURN;
1468}
1469
a0d0e21e
LW		 1470PP(pp_sysread)
1471{
4e35701f 1472 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1473 int offset;
1474 GV *gv;
1475 IO *io;
1476 char *buffer;
5b54f415 1477 SSize_t length;
1e422769 1478 Sock_size_t bufsize;
748a9306 1479 SV *bufsv;
a0d0e21e 1480 STRLEN blen;
2ae324a7 1481 MAGIC *mg;
a0d0e21e
LW		 1482
1483 gv = (GV*)*++MARK;
533c011a 1484 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
33c27489 1485 (mg = SvTIED_mg((SV*)gv, 'q')))
137443ea 1486 {
2ae324a7 1487 SV *sv;
1488
1489 PUSHMARK(MARK-1);
33c27489 1490 *MARK = SvTIED_obj((SV*)gv, mg);
2ae324a7 1491 ENTER;
864dbfa3 1492 call_method("READ", G_SCALAR);
2ae324a7 1493 LEAVE;
1494 SPAGAIN;
1495 sv = POPs;
1496 SP = ORIGMARK;
1497 PUSHs(sv);
1498 RETURN;
1499 }
1500
a0d0e21e
LW		 1501 if (!gv)
1502 goto say_undef;
748a9306 1503 bufsv = *++MARK;
ff68c719 1504 if (! SvOK(bufsv))
1505 sv_setpvn(bufsv, "", 0);
748a9306 1506 buffer = SvPV_force(bufsv, blen);
a0d0e21e
LW		 1507 length = SvIVx(*++MARK);
1508 if (length < 0)
cea2e8a9 1509 DIE(aTHX_ "Negative length");
748a9306 1510 SETERRNO(0,0);
a0d0e21e
LW		 1511 if (MARK < SP)
1512 offset = SvIVx(*++MARK);
1513 else
1514 offset = 0;
1515 io = GvIO(gv);
1516 if (!io || !IoIFP(io))
1517 goto say_undef;
1518#ifdef HAS_SOCKET
533c011a 1519 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1520 char namebuf[MAXPATHLEN];
eec2d3df 1521#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
490ab354
JH		 1522 bufsize = sizeof (struct sockaddr_in);
1523#else
46fc3d4c 1524 bufsize = sizeof namebuf;
490ab354 1525#endif
abf95952
IZ		 1526#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1527 if (bufsize >= 256)
1528 bufsize = 255;
1529#endif
626727d5
GS		 1530#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1531 if (bufsize >= 256)
1532 bufsize = 255;
1533#endif
748a9306 1534 buffer = SvGROW(bufsv, length+1);
bbce6d69 1535 /* 'offset' means 'flags' here */
6ad3d225 1536 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1537 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1538 if (length < 0)
1539 RETPUSHUNDEF;
748a9306
LW		 1540 SvCUR_set(bufsv, length);
1541 *SvEND(bufsv) = '\0';
1542 (void)SvPOK_only(bufsv);
1543 SvSETMAGIC(bufsv);
aac0dd9a 1544 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1545 if (!(IoFLAGS(io) & IOf_UNTAINT))
1546 SvTAINTED_on(bufsv);
a0d0e21e 1547 SP = ORIGMARK;
46fc3d4c 1548 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1549 PUSHs(TARG);
1550 RETURN;
1551 }
1552#else
911d147d 1553 if (PL_op->op_type == OP_RECV)
cea2e8a9 1554 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1555#endif
bbce6d69 1556 if (offset < 0) {
1557 if (-offset > blen)
cea2e8a9 1558 DIE(aTHX_ "Offset outside string");
bbce6d69 1559 offset += blen;
1560 }
cd52b7b2 1561 bufsize = SvCUR(bufsv);
748a9306 1562 buffer = SvGROW(bufsv, length+offset+1);
cd52b7b2 1563 if (offset > bufsize) { /* Zero any newly allocated space */
1564 Zero(buffer+bufsize, offset-bufsize, char);
1565 }
533c011a 1566 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1567#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1568 if (IoTYPE(io) == IoTYPE_SOCKET) {
a7092146
GS		 1569 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1570 buffer+offset, length, 0);
1571 }
1572 else
1573#endif
1574 {
1575 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1576 buffer+offset, length);
1577 }
a0d0e21e
LW		 1578 }
1579 else
1580#ifdef HAS_SOCKET__bad_code_maybe
50952442 1581 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1582 char namebuf[MAXPATHLEN];
490ab354
JH		 1583#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1584 bufsize = sizeof (struct sockaddr_in);
1585#else
46fc3d4c 1586 bufsize = sizeof namebuf;
490ab354 1587#endif
6ad3d225 1588 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
46fc3d4c 1589 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1590 }
1591 else
1592#endif
3b02c43c 1593 {
760ac839 1594 length = PerlIO_read(IoIFP(io), buffer+offset, length);
3b02c43c 1595 /* fread() returns 0 on both error and EOF */
5c7a8c78 1596 if (length == 0 && PerlIO_error(IoIFP(io)))
3b02c43c
GS		 1597 length = -1;
1598 }
af8c498a 1599 if (length < 0) {
50952442 1600 if ((IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout()
c529f79d 1601 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
af8c498a 1602 {
2dd78f96
JH		 1603 /* integrate with report_evil_fh()? */
1604 char *name = NULL;
1605 if (isGV(gv)) {
1606 SV* sv = sv_newmortal();
1607 gv_efullname4(sv, gv, Nullch, FALSE);
1608 name = SvPV_nolen(sv);
1609 }
1610 if (name && *name)
1611 Perl_warner(aTHX_ WARN_IO,
1612 "Filehandle %s opened only for output", name);
1613 else
1614 Perl_warner(aTHX_ WARN_IO,
1615 "Filehandle opened only for output");
af8c498a 1616 }
a0d0e21e 1617 goto say_undef;
af8c498a 1618 }
748a9306
LW		 1619 SvCUR_set(bufsv, length+offset);
1620 *SvEND(bufsv) = '\0';
1621 (void)SvPOK_only(bufsv);
1622 SvSETMAGIC(bufsv);
aac0dd9a 1623 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1624 if (!(IoFLAGS(io) & IOf_UNTAINT))
1625 SvTAINTED_on(bufsv);
a0d0e21e
LW		 1626 SP = ORIGMARK;
1627 PUSHi(length);
1628 RETURN;
1629
1630 say_undef:
1631 SP = ORIGMARK;
1632 RETPUSHUNDEF;
1633}
1634
1635PP(pp_syswrite)
1636{
092bebab
JH		 1637 djSP;
1638 int items = (SP - PL_stack_base) - TOPMARK;
1639 if (items == 2) {
9f089d78 1640 SV *sv;
092bebab 1641 EXTEND(SP, 1);
9f089d78
SB		 1642 sv = sv_2mortal(newSViv(sv_len(*SP)));
1643 PUSHs(sv);
092bebab
JH		 1644 PUTBACK;
1645 }
cea2e8a9 1646 return pp_send();
a0d0e21e
LW		 1647}
1648
1649PP(pp_send)
1650{
4e35701f 1651 djSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1652 GV *gv;
1653 IO *io;
748a9306 1654 SV *bufsv;
a0d0e21e 1655 char *buffer;
8c99d73e
GS		 1656 Size_t length;
1657 SSize_t retval;
1658 IV offset;
a0d0e21e 1659 STRLEN blen;
1d603a67 1660 MAGIC *mg;
a0d0e21e
LW		 1661
1662 gv = (GV*)*++MARK;
33c27489 1663 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1d603a67
GB		 1664 SV *sv;
1665
1666 PUSHMARK(MARK-1);
33c27489 1667 *MARK = SvTIED_obj((SV*)gv, mg);
1d603a67 1668 ENTER;
864dbfa3 1669 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1670 LEAVE;
1671 SPAGAIN;
1672 sv = POPs;
1673 SP = ORIGMARK;
1674 PUSHs(sv);
1675 RETURN;
1676 }
a0d0e21e
LW		 1677 if (!gv)
1678 goto say_undef;
748a9306
LW		 1679 bufsv = *++MARK;
1680 buffer = SvPV(bufsv, blen);
8c99d73e 1681#if Size_t_size > IVSIZE
3c001241 1682 length = (Size_t)SvNVx(*++MARK);
146174a9 1683#else
3c001241 1684 length = (Size_t)SvIVx(*++MARK);
146174a9 1685#endif
3c001241 1686 if ((SSize_t)length < 0)
cea2e8a9 1687 DIE(aTHX_ "Negative length");
748a9306 1688 SETERRNO(0,0);
a0d0e21e
LW		 1689 io = GvIO(gv);
1690 if (!io || !IoIFP(io)) {
8c99d73e 1691 retval = -1;
bc37a18f
RG		 1692 if (ckWARN(WARN_CLOSED))
1693 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1694 }
533c011a 1695 else if (PL_op->op_type == OP_SYSWRITE) {
bbce6d69 1696 if (MARK < SP) {
a0d0e21e 1697 offset = SvIVx(*++MARK);
bbce6d69 1698 if (offset < 0) {
1699 if (-offset > blen)
cea2e8a9 1700 DIE(aTHX_ "Offset outside string");
bbce6d69 1701 offset += blen;
fb73857a 1702 } else if (offset >= blen && blen > 0)
cea2e8a9 1703 DIE(aTHX_ "Offset outside string");
bbce6d69 1704 } else
a0d0e21e
LW		 1705 offset = 0;
1706 if (length > blen - offset)
1707 length = blen - offset;
a7092146 1708#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1709 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1710 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1711 buffer+offset, length, 0);
1712 }
1713 else
1714#endif
1715 {
94e4c244 1716 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1717 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
a7092146
GS		 1718 buffer+offset, length);
1719 }
a0d0e21e
LW		 1720 }
1721#ifdef HAS_SOCKET
1722 else if (SP > MARK) {
1723 char *sockbuf;
1724 STRLEN mlen;
1725 sockbuf = SvPVx(*++MARK, mlen);
8c99d73e
GS		 1726 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1727 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1728 }
1729 else
8c99d73e 1730 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
490ab354 1731
a0d0e21e
LW		 1732#else
1733 else
cea2e8a9 1734 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1735#endif
8c99d73e 1736 if (retval < 0)
a0d0e21e
LW		 1737 goto say_undef;
1738 SP = ORIGMARK;
8c99d73e
GS		 1739#if Size_t_size > IVSIZE
1740 PUSHn(retval);
1741#else
1742 PUSHi(retval);
1743#endif
a0d0e21e
LW		 1744 RETURN;
1745
1746 say_undef:
1747 SP = ORIGMARK;
1748 RETPUSHUNDEF;
1749}
1750
1751PP(pp_recv)
1752{
cea2e8a9 1753 return pp_sysread();
a0d0e21e
LW		 1754}
1755
1756PP(pp_eof)
1757{
4e35701f 1758 djSP;
a0d0e21e 1759 GV *gv;
4592e6ca 1760 MAGIC *mg;
a0d0e21e 1761
32da55ab 1762 if (MAXARG == 0) {
146174a9
CB		 1763 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1764 IO *io;
1765 gv = PL_last_in_gv = PL_argvgv;
1766 io = GvIO(gv);
1767 if (io && !IoIFP(io)) {
1768 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1769 IoLINES(io) = 0;
1770 IoFLAGS(io) &= ~IOf_START;
1771 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1772 sv_setpvn(GvSV(gv), "-", 1);
1773 SvSETMAGIC(GvSV(gv));
1774 }
1775 else if (!nextargv(gv))
1776 RETPUSHYES;
1777 }
1778 }
1779 else
1780 gv = PL_last_in_gv; /* eof */
1781 }
a0d0e21e 1782 else
146174a9 1783 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca
NIS		 1784
1785 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1786 PUSHMARK(SP);
1787 XPUSHs(SvTIED_obj((SV*)gv, mg));
1788 PUTBACK;
1789 ENTER;
864dbfa3 1790 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1791 LEAVE;
1792 SPAGAIN;
1793 RETURN;
1794 }
1795
54310121 1796 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1797 RETURN;
1798}
1799
1800PP(pp_tell)
1801{
4e35701f 1802 djSP; dTARGET;
301e8125 1803 GV *gv;
4592e6ca 1804 MAGIC *mg;
a0d0e21e 1805
32da55ab 1806 if (MAXARG == 0)
3280af22 1807 gv = PL_last_in_gv;
a0d0e21e 1808 else
3280af22 1809 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1810
1811 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1812 PUSHMARK(SP);
1813 XPUSHs(SvTIED_obj((SV*)gv, mg));
1814 PUTBACK;
1815 ENTER;
864dbfa3 1816 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1817 LEAVE;
1818 SPAGAIN;
1819 RETURN;
1820 }
1821
146174a9
CB		 1822#if LSEEKSIZE > IVSIZE
1823 PUSHn( do_tell(gv) );
1824#else
a0d0e21e 1825 PUSHi( do_tell(gv) );
146174a9 1826#endif
a0d0e21e
LW		 1827 RETURN;
1828}
1829
1830PP(pp_seek)
1831{
cea2e8a9 1832 return pp_sysseek();
137443ea 1833}
1834
1835PP(pp_sysseek)
1836{
4e35701f 1837 djSP;
a0d0e21e
LW		 1838 GV *gv;
1839 int whence = POPi;
146174a9
CB		 1840#if LSEEKSIZE > IVSIZE
1841 Off_t offset = (Off_t)SvNVx(POPs);
1842#else
d9b3e12d 1843 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 1844#endif
4592e6ca 1845 MAGIC *mg;
a0d0e21e 1846
3280af22 1847 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca
NIS		 1848
1849 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1850 PUSHMARK(SP);
1851 XPUSHs(SvTIED_obj((SV*)gv, mg));
cb50131a
CB		 1852#if LSEEKSIZE > IVSIZE
1853 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1854#else
b448e4fe 1855 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 1856#endif
b448e4fe 1857 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 1858 PUTBACK;
1859 ENTER;
864dbfa3 1860 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 1861 LEAVE;
1862 SPAGAIN;
1863 RETURN;
1864 }
1865
533c011a 1866 if (PL_op->op_type == OP_SEEK)
8903cb82 1867 PUSHs(boolSV(do_seek(gv, offset, whence)));
1868 else {
b448e4fe
JH		 1869 Off_t sought = do_sysseek(gv, offset, whence);
1870 if (sought < 0)
146174a9
CB		 1871 PUSHs(&PL_sv_undef);
1872 else {
b448e4fe 1873 SV* sv = sought ?
146174a9 1874#if LSEEKSIZE > IVSIZE
b448e4fe 1875 newSVnv((NV)sought)
146174a9 1876#else
b448e4fe 1877 newSViv(sought)
146174a9
CB		 1878#endif
1879 : newSVpvn(zero_but_true, ZBTLEN);
1880 PUSHs(sv_2mortal(sv));
1881 }
8903cb82 1882 }
a0d0e21e
LW		 1883 RETURN;
1884}
1885
1886PP(pp_truncate)
1887{
4e35701f 1888 djSP;
8c99d73e
GS		 1889 /* There seems to be no consensus on the length type of truncate()
1890 * and ftruncate(), both off_t and size_t have supporters. In
1891 * general one would think that when using large files, off_t is
1892 * at least as wide as size_t, so using an off_t should be okay. */
1893 /* XXX Configure probe for the length type of *truncate() needed XXX */
1894 Off_t len;
a0d0e21e
LW		 1895 int result = 1;
1896 GV *tmpgv;
2d8e6c8d 1897 STRLEN n_a;
a0d0e21e 1898
8c99d73e
GS		 1899#if Size_t_size > IVSIZE
1900 len = (Off_t)POPn;
1901#else
1902 len = (Off_t)POPi;
1903#endif
1904 /* Checking for length < 0 is problematic as the type might or
301e8125 1905 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 1906 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 1907 SETERRNO(0,0);
5d94fbed 1908#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
533c011a 1909 if (PL_op->op_flags & OPf_SPECIAL) {
2d8e6c8d 1910 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
cbdc8872 1911 do_ftruncate:
1e422769 1912 TAINT_PROPER("truncate");
cb50131a
CB		 1913 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1914 result = 0;
1915 else {
1916 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
cbdc8872 1917#ifdef HAS_TRUNCATE
cb50131a 1918 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
301e8125 1919#else
cb50131a 1920 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
cbdc8872 1921#endif
cb50131a
CB		 1922 result = 0;
1923 }
a0d0e21e
LW		 1924 }
1925 else {
cbdc8872 1926 SV *sv = POPs;
1e422769 1927 char *name;
2d8e6c8d 1928 STRLEN n_a;
1e422769 1929
cbdc8872 1930 if (SvTYPE(sv) == SVt_PVGV) {
1931 tmpgv = (GV*)sv; /* *main::FRED for example */
1932 goto do_ftruncate;
1933 }
1934 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1935 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1936 goto do_ftruncate;
1937 }
1e422769 1938
2d8e6c8d 1939 name = SvPV(sv, n_a);
1e422769 1940 TAINT_PROPER("truncate");
cbdc8872 1941#ifdef HAS_TRUNCATE
1e422769 1942 if (truncate(name, len) < 0)
a0d0e21e 1943 result = 0;
cbdc8872 1944#else
1945 {
1946 int tmpfd;
6ad3d225 1947 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
bbce6d69 1948 result = 0;
cbdc8872 1949 else {
1950 if (my_chsize(tmpfd, len) < 0)
1951 result = 0;
6ad3d225 1952 PerlLIO_close(tmpfd);
cbdc8872 1953 }
a0d0e21e 1954 }
a0d0e21e 1955#endif
cbdc8872 1956 }
a0d0e21e
LW		 1957
1958 if (result)
1959 RETPUSHYES;
1960 if (!errno)
748a9306 1961 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 1962 RETPUSHUNDEF;
1963#else
cea2e8a9 1964 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 1965#endif
1966}
1967
1968PP(pp_fcntl)
1969{
cea2e8a9 1970 return pp_ioctl();
a0d0e21e
LW		 1971}
1972
1973PP(pp_ioctl)
1974{
4e35701f 1975 djSP; dTARGET;
748a9306 1976 SV *argsv = POPs;
a0d0e21e 1977 unsigned int func = U_I(POPn);
533c011a 1978 int optype = PL_op->op_type;
a0d0e21e 1979 char *s;
324aa91a 1980 IV retval;
a0d0e21e
LW		 1981 GV *gv = (GV*)POPs;
1982 IO *io = GvIOn(gv);
1983
748a9306
LW		 1984 if (!io || !argsv || !IoIFP(io)) {
1985 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
a0d0e21e
LW		 1986 RETPUSHUNDEF;
1987 }
1988
748a9306 1989 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 1990 STRLEN len;
324aa91a 1991 STRLEN need;
748a9306 1992 s = SvPV_force(argsv, len);
324aa91a
HF		 1993 need = IOCPARM_LEN(func);
1994 if (len < need) {
1995 s = Sv_Grow(argsv, need + 1);
1996 SvCUR_set(argsv, need);
a0d0e21e
LW		 1997 }
1998
748a9306 1999 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2000 }
2001 else {
748a9306 2002 retval = SvIV(argsv);
c529f79d 2003 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2004 }
2005
2006 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2007
2008 if (optype == OP_IOCTL)
2009#ifdef HAS_IOCTL
76e3520e 2010 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2011#else
cea2e8a9 2012 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2013#endif
2014 else
55497cff 2015#ifdef HAS_FCNTL
2016#if defined(OS2) && defined(__EMX__)
760ac839 2017 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2018#else
760ac839 2019 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2020#endif
55497cff 2021#else
cea2e8a9 2022 DIE(aTHX_ "fcntl is not implemented");
a0d0e21e
LW		 2023#endif
2024
748a9306
LW		 2025 if (SvPOK(argsv)) {
2026 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2027 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
22c35a8c 2028 PL_op_name[optype]);
748a9306
LW		 2029 s[SvCUR(argsv)] = 0; /* put our null back */
2030 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2031 }
2032
2033 if (retval == -1)
2034 RETPUSHUNDEF;
2035 if (retval != 0) {
2036 PUSHi(retval);
2037 }
2038 else {
8903cb82 2039 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 2040 }
2041 RETURN;
2042}
2043
2044PP(pp_flock)
2045{
4e35701f 2046 djSP; dTARGET;
a0d0e21e
LW		 2047 I32 value;
2048 int argtype;
2049 GV *gv;
bc37a18f 2050 IO *io = NULL;
760ac839 2051 PerlIO *fp;
16d20bd9 2052
ff68c719 2053#ifdef FLOCK
a0d0e21e 2054 argtype = POPi;
32da55ab 2055 if (MAXARG == 0)
3280af22 2056 gv = PL_last_in_gv;
a0d0e21e
LW		 2057 else
2058 gv = (GV*)POPs;
bc37a18f
RG		 2059 if (gv && (io = GvIO(gv)))
2060 fp = IoIFP(io);
2061 else {
a0d0e21e 2062 fp = Nullfp;
bc37a18f
RG		 2063 io = NULL;
2064 }
a0d0e21e 2065 if (fp) {
68dc0745 2066 (void)PerlIO_flush(fp);
76e3520e 2067 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2068 }
cb50131a 2069 else {
bc37a18f
RG		 2070 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2071 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2072 value = 0;
cb50131a 2073 SETERRNO(EBADF,RMS$_IFI);
cb50131a 2074 }
a0d0e21e
LW		 2075 PUSHi(value);
2076 RETURN;
2077#else
cea2e8a9 2078 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2079#endif
2080}
2081
2082/* Sockets. */
2083
2084PP(pp_socket)
2085{
4e35701f 2086 djSP;
a0d0e21e
LW		 2087#ifdef HAS_SOCKET
2088 GV *gv;
2089 register IO *io;
2090 int protocol = POPi;
2091 int type = POPi;
2092 int domain = POPi;
2093 int fd;
2094
2095 gv = (GV*)POPs;
2096
2097 if (!gv) {
748a9306 2098 SETERRNO(EBADF,LIB$_INVARG);
a0d0e21e
LW		 2099 RETPUSHUNDEF;
2100 }
2101
2102 io = GvIOn(gv);
2103 if (IoIFP(io))
2104 do_close(gv, FALSE);
2105
2106 TAINT_PROPER("socket");
6ad3d225 2107 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2108 if (fd < 0)
2109 RETPUSHUNDEF;
760ac839
LW		 2110 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2111 IoOFP(io) = PerlIO_fdopen(fd, "w");
50952442 2112 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2113 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2114 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2115 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2116 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2117 RETPUSHUNDEF;
2118 }
8d2a6795
GS		 2119#if defined(HAS_FCNTL) && defined(F_SETFD)
2120 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2121#endif
a0d0e21e
LW		 2122
2123 RETPUSHYES;
2124#else
cea2e8a9 2125 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2126#endif
2127}
2128
2129PP(pp_sockpair)
2130{
4e35701f 2131 djSP;
a0d0e21e
LW		 2132#ifdef HAS_SOCKETPAIR
2133 GV *gv1;
2134 GV *gv2;
2135 register IO *io1;
2136 register IO *io2;
2137 int protocol = POPi;
2138 int type = POPi;
2139 int domain = POPi;
2140 int fd[2];
2141
2142 gv2 = (GV*)POPs;
2143 gv1 = (GV*)POPs;
2144 if (!gv1 || !gv2)
2145 RETPUSHUNDEF;
2146
2147 io1 = GvIOn(gv1);
2148 io2 = GvIOn(gv2);
2149 if (IoIFP(io1))
2150 do_close(gv1, FALSE);
2151 if (IoIFP(io2))
2152 do_close(gv2, FALSE);
2153
2154 TAINT_PROPER("socketpair");
6ad3d225 2155 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2156 RETPUSHUNDEF;
760ac839
LW		 2157 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2158 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
50952442 2159 IoTYPE(io1) = IoTYPE_SOCKET;
760ac839
LW		 2160 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2161 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
50952442 2162 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2163 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2164 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2165 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2166 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2167 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2168 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2169 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2170 RETPUSHUNDEF;
2171 }
8d2a6795
GS		 2172#if defined(HAS_FCNTL) && defined(F_SETFD)
2173 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2174 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2175#endif
a0d0e21e
LW		 2176
2177 RETPUSHYES;
2178#else
cea2e8a9 2179 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2180#endif
2181}
2182
2183PP(pp_bind)
2184{
4e35701f 2185 djSP;
a0d0e21e 2186#ifdef HAS_SOCKET
eec2d3df
GS		 2187#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2188 extern GETPRIVMODE();
2189 extern GETUSERMODE();
2190#endif
748a9306 2191 SV *addrsv = POPs;
a0d0e21e
LW		 2192 char *addr;
2193 GV *gv = (GV*)POPs;
2194 register IO *io = GvIOn(gv);
2195 STRLEN len;
eec2d3df
GS		 2196 int bind_ok = 0;
2197#ifdef MPE
2198 int mpeprivmode = 0;
2199#endif
a0d0e21e
LW		 2200
2201 if (!io || !IoIFP(io))
2202 goto nuts;
2203
748a9306 2204 addr = SvPV(addrsv, len);
a0d0e21e 2205 TAINT_PROPER("bind");
eec2d3df
GS		 2206#ifdef MPE /* Deal with MPE bind() peculiarities */
2207 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2208 /* The address *MUST* stupidly be zero. */
2209 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2210 /* PRIV mode is required to bind() to ports < 1024. */
2211 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2212 ((struct sockaddr_in *)addr)->sin_port > 0) {
2213 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2214 mpeprivmode = 1;
2215 }
2216 }
2217#endif /* MPE */
2218 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2219 (struct sockaddr *)addr, len) >= 0)
2220 bind_ok = 1;
2221
2222#ifdef MPE /* Switch back to USER mode */
2223 if (mpeprivmode)
2224 GETUSERMODE();
2225#endif /* MPE */
2226
2227 if (bind_ok)
a0d0e21e
LW		 2228 RETPUSHYES;
2229 else
2230 RETPUSHUNDEF;
2231
2232nuts:
599cee73 2233 if (ckWARN(WARN_CLOSED))
bc37a18f 2234 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2235 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2236 RETPUSHUNDEF;
2237#else
cea2e8a9 2238 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2239#endif
2240}
2241
2242PP(pp_connect)
2243{
4e35701f 2244 djSP;
a0d0e21e 2245#ifdef HAS_SOCKET
748a9306 2246 SV *addrsv = POPs;
a0d0e21e
LW		 2247 char *addr;
2248 GV *gv = (GV*)POPs;
2249 register IO *io = GvIOn(gv);
2250 STRLEN len;
2251
2252 if (!io || !IoIFP(io))
2253 goto nuts;
2254
748a9306 2255 addr = SvPV(addrsv, len);
a0d0e21e 2256 TAINT_PROPER("connect");
6ad3d225 2257 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2258 RETPUSHYES;
2259 else
2260 RETPUSHUNDEF;
2261
2262nuts:
599cee73 2263 if (ckWARN(WARN_CLOSED))
bc37a18f 2264 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2265 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2266 RETPUSHUNDEF;
2267#else
cea2e8a9 2268 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2269#endif
2270}
2271
2272PP(pp_listen)
2273{
4e35701f 2274 djSP;
a0d0e21e
LW		 2275#ifdef HAS_SOCKET
2276 int backlog = POPi;
2277 GV *gv = (GV*)POPs;
2278 register IO *io = GvIOn(gv);
2279
2280 if (!io || !IoIFP(io))
2281 goto nuts;
2282
6ad3d225 2283 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2284 RETPUSHYES;
2285 else
2286 RETPUSHUNDEF;
2287
2288nuts:
599cee73 2289 if (ckWARN(WARN_CLOSED))
bc37a18f 2290 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2291 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2292 RETPUSHUNDEF;
2293#else
cea2e8a9 2294 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2295#endif
2296}
2297
2298PP(pp_accept)
2299{
4e35701f 2300 djSP; dTARGET;
a0d0e21e
LW		 2301#ifdef HAS_SOCKET
2302 GV *ngv;
2303 GV *ggv;
2304 register IO *nstio;
2305 register IO *gstio;
4633a7c4 2306 struct sockaddr saddr; /* use a struct to avoid alignment problems */
1e422769 2307 Sock_size_t len = sizeof saddr;
a0d0e21e
LW		 2308 int fd;
2309
2310 ggv = (GV*)POPs;
2311 ngv = (GV*)POPs;
2312
2313 if (!ngv)
2314 goto badexit;
2315 if (!ggv)
2316 goto nuts;
2317
2318 gstio = GvIO(ggv);
2319 if (!gstio || !IoIFP(gstio))
2320 goto nuts;
2321
2322 nstio = GvIOn(ngv);
2323 if (IoIFP(nstio))
2324 do_close(ngv, FALSE);
2325
6ad3d225 2326 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
a0d0e21e
LW		 2327 if (fd < 0)
2328 goto badexit;
760ac839
LW		 2329 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2330 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
50952442 2331 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2332 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2333 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2334 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2335 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2336 goto badexit;
2337 }
8d2a6795
GS		 2338#if defined(HAS_FCNTL) && defined(F_SETFD)
2339 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2340#endif
a0d0e21e 2341
ed79a026
OF		 2342#ifdef EPOC
2343 len = sizeof saddr; /* EPOC somehow truncates info */
2344#endif
2345
748a9306 2346 PUSHp((char *)&saddr, len);
a0d0e21e
LW		 2347 RETURN;
2348
2349nuts:
599cee73 2350 if (ckWARN(WARN_CLOSED))
bc37a18f 2351 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
748a9306 2352 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2353
2354badexit:
2355 RETPUSHUNDEF;
2356
2357#else
cea2e8a9 2358 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2359#endif
2360}
2361
2362PP(pp_shutdown)
2363{
4e35701f 2364 djSP; dTARGET;
a0d0e21e
LW		 2365#ifdef HAS_SOCKET
2366 int how = POPi;
2367 GV *gv = (GV*)POPs;
2368 register IO *io = GvIOn(gv);
2369
2370 if (!io || !IoIFP(io))
2371 goto nuts;
2372
6ad3d225 2373 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2374 RETURN;
2375
2376nuts:
599cee73 2377 if (ckWARN(WARN_CLOSED))
bc37a18f 2378 report_evil_fh(gv, io, PL_op->op_type);
748a9306 2379 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2380 RETPUSHUNDEF;
2381#else
cea2e8a9 2382 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2383#endif
2384}
2385
2386PP(pp_gsockopt)
2387{
2388#ifdef HAS_SOCKET
cea2e8a9 2389 return pp_ssockopt();
a0d0e21e 2390#else
cea2e8a9 2391 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2392#endif
2393}
2394
2395PP(pp_ssockopt)
2396{
4e35701f 2397 djSP;
a0d0e21e 2398#ifdef HAS_SOCKET
533c011a 2399 int optype = PL_op->op_type;
a0d0e21e
LW		 2400 SV *sv;
2401 int fd;
2402 unsigned int optname;
2403 unsigned int lvl;
2404 GV *gv;
2405 register IO *io;
1e422769 2406 Sock_size_t len;
a0d0e21e
LW		 2407
2408 if (optype == OP_GSOCKOPT)
2409 sv = sv_2mortal(NEWSV(22, 257));
2410 else
2411 sv = POPs;
2412 optname = (unsigned int) POPi;
2413 lvl = (unsigned int) POPi;
2414
2415 gv = (GV*)POPs;
2416 io = GvIOn(gv);
2417 if (!io || !IoIFP(io))
2418 goto nuts;
2419
760ac839 2420 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2421 switch (optype) {
2422 case OP_GSOCKOPT:
748a9306 2423 SvGROW(sv, 257);
a0d0e21e 2424 (void)SvPOK_only(sv);
748a9306
LW		 2425 SvCUR_set(sv,256);
2426 *SvEND(sv) ='\0';
1e422769 2427 len = SvCUR(sv);
6ad3d225 2428 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2429 goto nuts2;
1e422769 2430 SvCUR_set(sv, len);
748a9306 2431 *SvEND(sv) ='\0';
a0d0e21e
LW		 2432 PUSHs(sv);
2433 break;
2434 case OP_SSOCKOPT: {
1e422769 2435 char *buf;
2436 int aint;
2437 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2438 STRLEN l;
2439 buf = SvPV(sv, l);
2440 len = l;
1e422769 2441 }
56ee1660 2442 else {
a0d0e21e
LW		 2443 aint = (int)SvIV(sv);
2444 buf = (char*)&aint;
2445 len = sizeof(int);
2446 }
6ad3d225 2447 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2448 goto nuts2;
3280af22 2449 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2450 }
2451 break;
2452 }
2453 RETURN;
2454
2455nuts:
599cee73 2456 if (ckWARN(WARN_CLOSED))
bc37a18f 2457 report_evil_fh(gv, io, optype);
748a9306 2458 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2459nuts2:
2460 RETPUSHUNDEF;
2461
2462#else
cea2e8a9 2463 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2464#endif
2465}
2466
2467PP(pp_getsockname)
2468{
2469#ifdef HAS_SOCKET
cea2e8a9 2470 return pp_getpeername();
a0d0e21e 2471#else
cea2e8a9 2472 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2473#endif
2474}
2475
2476PP(pp_getpeername)
2477{
4e35701f 2478 djSP;
a0d0e21e 2479#ifdef HAS_SOCKET
533c011a 2480 int optype = PL_op->op_type;
a0d0e21e
LW		 2481 SV *sv;
2482 int fd;
2483 GV *gv = (GV*)POPs;
2484 register IO *io = GvIOn(gv);
1e422769 2485 Sock_size_t len;
a0d0e21e
LW		 2486
2487 if (!io || !IoIFP(io))
2488 goto nuts;
2489
2490 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2491 (void)SvPOK_only(sv);
1e422769 2492 len = 256;
2493 SvCUR_set(sv, len);
748a9306 2494 *SvEND(sv) ='\0';
760ac839 2495 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2496 switch (optype) {
2497 case OP_GETSOCKNAME:
6ad3d225 2498 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2499 goto nuts2;
2500 break;
2501 case OP_GETPEERNAME:
6ad3d225 2502 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2503 goto nuts2;
490ab354
JH		 2504#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2505 {
2506 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";
2507 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2508 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2509 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2510 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2511 goto nuts2;
490ab354
JH		 2512 }
2513 }
2514#endif
a0d0e21e
LW		 2515 break;
2516 }
13826f2c
CS		 2517#ifdef BOGUS_GETNAME_RETURN
2518 /* Interactive Unix, getpeername() and getsockname()
2519 does not return valid namelen */
1e422769 2520 if (len == BOGUS_GETNAME_RETURN)
2521 len = sizeof(struct sockaddr);
13826f2c 2522#endif
1e422769 2523 SvCUR_set(sv, len);
748a9306 2524 *SvEND(sv) ='\0';
a0d0e21e
LW		 2525 PUSHs(sv);
2526 RETURN;
2527
2528nuts:
599cee73 2529 if (ckWARN(WARN_CLOSED))
bc37a18f 2530 report_evil_fh(gv, io, optype);
748a9306 2531 SETERRNO(EBADF,SS$_IVCHAN);
a0d0e21e
LW		 2532nuts2:
2533 RETPUSHUNDEF;
2534
2535#else
cea2e8a9 2536 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2537#endif
2538}
2539
2540/* Stat calls. */
2541
2542PP(pp_lstat)
2543{
cea2e8a9 2544 return pp_stat();
a0d0e21e
LW		 2545}
2546
2547PP(pp_stat)
2548{
4e35701f 2549 djSP;
2dd78f96 2550 GV *gv;
54310121 2551 I32 gimme;
a0d0e21e 2552 I32 max = 13;
2d8e6c8d 2553 STRLEN n_a;
a0d0e21e 2554
533c011a 2555 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2556 gv = cGVOP_gv;
9d837945
TM		 2557 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2558 Perl_warner(aTHX_ WARN_IO,
2dd78f96 2559 "lstat() on filehandle %s", GvENAME(gv));
748a9306 2560 do_fstat:
2dd78f96 2561 if (gv != PL_defgv) {
3280af22 2562 PL_laststype = OP_STAT;
2dd78f96 2563 PL_statgv = gv;
3280af22 2564 sv_setpv(PL_statname, "");
2dd78f96
JH		 2565 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2566 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2567 }
9ddeeac9 2568 if (PL_laststatval < 0) {
2dd78f96
JH		 2569 dTHR;
2570 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2571 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2572 max = 0;
9ddeeac9 2573 }
a0d0e21e
LW		 2574 }
2575 else {
748a9306
LW		 2576 SV* sv = POPs;
2577 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2578 gv = (GV*)sv;
748a9306
LW		 2579 goto do_fstat;
2580 }
2581 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2582 gv = (GV*)SvRV(sv);
748a9306
LW		 2583 goto do_fstat;
2584 }
2d8e6c8d 2585 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2586 PL_statgv = Nullgv;
a0d0e21e 2587#ifdef HAS_LSTAT
533c011a
NIS		 2588 PL_laststype = PL_op->op_type;
2589 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2590 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2591 else
2592#endif
2d8e6c8d 2593 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2594 if (PL_laststatval < 0) {
2d8e6c8d 2595 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
cea2e8a9 2596 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
a0d0e21e
LW		 2597 max = 0;
2598 }
2599 }
2600
54310121 2601 gimme = GIMME_V;
2602 if (gimme != G_ARRAY) {
2603 if (gimme != G_VOID)
2604 XPUSHs(boolSV(max));
2605 RETURN;
a0d0e21e
LW		 2606 }
2607 if (max) {
36477c24 2608 EXTEND(SP, max);
2609 EXTEND_MORTAL(max);
1ff81528
PL		 2610 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2611 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2612 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2613 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2614#if Uid_t_size > IVSIZE
2615 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2616#else
23dcd6c8 2617# if Uid_t_sign <= 0
1ff81528 2618 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2619# else
2620 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2621# endif
146174a9 2622#endif
301e8125 2623#if Gid_t_size > IVSIZE
146174a9
CB		 2624 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2625#else
23dcd6c8 2626# if Gid_t_sign <= 0
1ff81528 2627 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2628# else
2629 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2630# endif
146174a9 2631#endif
cbdc8872 2632#ifdef USE_STAT_RDEV
1ff81528 2633 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2634#else
79cb57f6 2635 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2636#endif
146174a9
CB		 2637#if Off_t_size > IVSIZE
2638 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2639#else
1ff81528 2640 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2641#endif
cbdc8872 2642#ifdef BIG_TIME
172ae379
JH		 2643 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2644 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2645 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2646#else
1ff81528
PL		 2647 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2648 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2649 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2650#endif
a0d0e21e 2651#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2652 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2653 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2654#else
79cb57f6
GS		 2655 PUSHs(sv_2mortal(newSVpvn("", 0)));
2656 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2657#endif
2658 }
2659 RETURN;
2660}
2661
2662PP(pp_ftrread)
2663{
5ff3f7a4 2664 I32 result;
4e35701f 2665 djSP;
5ff3f7a4 2666#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2667 STRLEN n_a;
5ff3f7a4 2668 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2669 result = access(TOPpx, R_OK);
5ff3f7a4
GS		 2670 if (result == 0)
2671 RETPUSHYES;
2672 if (result < 0)
2673 RETPUSHUNDEF;
2674 RETPUSHNO;
22865c03
GS		 2675 }
2676 else
cea2e8a9 2677 result = my_stat();
5ff3f7a4 2678#else
cea2e8a9 2679 result = my_stat();
5ff3f7a4 2680#endif
22865c03 2681 SPAGAIN;
a0d0e21e
LW		 2682 if (result < 0)
2683 RETPUSHUNDEF;
3280af22 2684 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2685 RETPUSHYES;
2686 RETPUSHNO;
2687}
2688
2689PP(pp_ftrwrite)
2690{
5ff3f7a4 2691 I32 result;
4e35701f 2692 djSP;
5ff3f7a4 2693#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2694 STRLEN n_a;
5ff3f7a4 2695 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2696 result = access(TOPpx, W_OK);
5ff3f7a4
GS		 2697 if (result == 0)
2698 RETPUSHYES;
2699 if (result < 0)
2700 RETPUSHUNDEF;
2701 RETPUSHNO;
22865c03
GS		 2702 }
2703 else
cea2e8a9 2704 result = my_stat();
5ff3f7a4 2705#else
cea2e8a9 2706 result = my_stat();
5ff3f7a4 2707#endif
22865c03 2708 SPAGAIN;
a0d0e21e
LW		 2709 if (result < 0)
2710 RETPUSHUNDEF;
3280af22 2711 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2712 RETPUSHYES;
2713 RETPUSHNO;
2714}
2715
2716PP(pp_ftrexec)
2717{
5ff3f7a4 2718 I32 result;
4e35701f 2719 djSP;
5ff3f7a4 2720#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2721 STRLEN n_a;
5ff3f7a4 2722 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2723 result = access(TOPpx, X_OK);
5ff3f7a4
GS		 2724 if (result == 0)
2725 RETPUSHYES;
2726 if (result < 0)
2727 RETPUSHUNDEF;
2728 RETPUSHNO;
22865c03
GS		 2729 }
2730 else
cea2e8a9 2731 result = my_stat();
5ff3f7a4 2732#else
cea2e8a9 2733 result = my_stat();
5ff3f7a4 2734#endif
22865c03 2735 SPAGAIN;
a0d0e21e
LW		 2736 if (result < 0)
2737 RETPUSHUNDEF;
3280af22 2738 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2739 RETPUSHYES;
2740 RETPUSHNO;
2741}
2742
2743PP(pp_fteread)
2744{
5ff3f7a4 2745 I32 result;
4e35701f 2746 djSP;
5ff3f7a4 2747#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2748 STRLEN n_a;
5ff3f7a4 2749 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2750 result = PERL_EFF_ACCESS_R_OK(TOPpx);
5ff3f7a4
GS		 2751 if (result == 0)
2752 RETPUSHYES;
2753 if (result < 0)
2754 RETPUSHUNDEF;
2755 RETPUSHNO;
22865c03
GS		 2756 }
2757 else
cea2e8a9 2758 result = my_stat();
5ff3f7a4 2759#else
cea2e8a9 2760 result = my_stat();
5ff3f7a4 2761#endif
22865c03 2762 SPAGAIN;
a0d0e21e
LW		 2763 if (result < 0)
2764 RETPUSHUNDEF;
3280af22 2765 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2766 RETPUSHYES;
2767 RETPUSHNO;
2768}
2769
2770PP(pp_ftewrite)
2771{
5ff3f7a4 2772 I32 result;
4e35701f 2773 djSP;
5ff3f7a4 2774#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 2775 STRLEN n_a;
5ff3f7a4 2776 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2777 result = PERL_EFF_ACCESS_W_OK(TOPpx);
5ff3f7a4
GS		 2778 if (result == 0)
2779 RETPUSHYES;
2780 if (result < 0)
2781 RETPUSHUNDEF;
2782 RETPUSHNO;
22865c03
GS		 2783 }
2784 else
cea2e8a9 2785 result = my_stat();
5ff3f7a4 2786#else
cea2e8a9 2787 result = my_stat();
5ff3f7a4 2788#endif
22865c03 2789 SPAGAIN;
a0d0e21e
LW		 2790 if (result < 0)
2791 RETPUSHUNDEF;
3280af22 2792 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 2793 RETPUSHYES;
2794 RETPUSHNO;
2795}
2796
2797PP(pp_fteexec)
2798{
5ff3f7a4 2799 I32 result;
4e35701f 2800 djSP;
5ff3f7a4 2801#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 2802 STRLEN n_a;
5ff3f7a4 2803 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2d8e6c8d 2804 result = PERL_EFF_ACCESS_X_OK(TOPpx);
5ff3f7a4
GS		 2805 if (result == 0)
2806 RETPUSHYES;
2807 if (result < 0)
2808 RETPUSHUNDEF;
2809 RETPUSHNO;
22865c03
GS		 2810 }
2811 else
cea2e8a9 2812 result = my_stat();
5ff3f7a4 2813#else
cea2e8a9 2814 result = my_stat();
5ff3f7a4 2815#endif
22865c03 2816 SPAGAIN;
a0d0e21e
LW		 2817 if (result < 0)
2818 RETPUSHUNDEF;
3280af22 2819 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 2820 RETPUSHYES;
2821 RETPUSHNO;
2822}
2823
2824PP(pp_ftis)
2825{
cea2e8a9 2826 I32 result = my_stat();
4e35701f 2827 djSP;
a0d0e21e
LW		 2828 if (result < 0)
2829 RETPUSHUNDEF;
2830 RETPUSHYES;
2831}
2832
2833PP(pp_fteowned)
2834{
cea2e8a9 2835 return pp_ftrowned();
a0d0e21e
LW		 2836}
2837
2838PP(pp_ftrowned)
2839{
cea2e8a9 2840 I32 result = my_stat();
4e35701f 2841 djSP;
a0d0e21e
LW		 2842 if (result < 0)
2843 RETPUSHUNDEF;
146174a9
CB		 2844 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2845 PL_euid : PL_uid) )
a0d0e21e
LW		 2846 RETPUSHYES;
2847 RETPUSHNO;
2848}
2849
2850PP(pp_ftzero)
2851{
cea2e8a9 2852 I32 result = my_stat();
4e35701f 2853 djSP;
a0d0e21e
LW		 2854 if (result < 0)
2855 RETPUSHUNDEF;
146174a9 2856 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 2857 RETPUSHYES;
2858 RETPUSHNO;
2859}
2860
2861PP(pp_ftsize)
2862{
cea2e8a9 2863 I32 result = my_stat();
4e35701f 2864 djSP; dTARGET;
a0d0e21e
LW		 2865 if (result < 0)
2866 RETPUSHUNDEF;
146174a9
CB		 2867#if Off_t_size > IVSIZE
2868 PUSHn(PL_statcache.st_size);
2869#else
3280af22 2870 PUSHi(PL_statcache.st_size);
146174a9 2871#endif
a0d0e21e
LW		 2872 RETURN;
2873}
2874
2875PP(pp_ftmtime)
2876{
cea2e8a9 2877 I32 result = my_stat();
4e35701f 2878 djSP; dTARGET;
a0d0e21e
LW		 2879 if (result < 0)
2880 RETPUSHUNDEF;
c6419e06 2881 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
a0d0e21e
LW		 2882 RETURN;
2883}
2884
2885PP(pp_ftatime)
2886{
cea2e8a9 2887 I32 result = my_stat();
4e35701f 2888 djSP; dTARGET;
a0d0e21e
LW		 2889 if (result < 0)
2890 RETPUSHUNDEF;
c6419e06 2891 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
a0d0e21e
LW		 2892 RETURN;
2893}
2894
2895PP(pp_ftctime)
2896{
cea2e8a9 2897 I32 result = my_stat();
4e35701f 2898 djSP; dTARGET;
a0d0e21e
LW		 2899 if (result < 0)
2900 RETPUSHUNDEF;
c6419e06 2901 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
a0d0e21e
LW		 2902 RETURN;
2903}
2904
2905PP(pp_ftsock)
2906{
cea2e8a9 2907 I32 result = my_stat();
4e35701f 2908 djSP;
a0d0e21e
LW		 2909 if (result < 0)
2910 RETPUSHUNDEF;
3280af22 2911 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 2912 RETPUSHYES;
2913 RETPUSHNO;
2914}
2915
2916PP(pp_ftchr)
2917{
cea2e8a9 2918 I32 result = my_stat();
4e35701f 2919 djSP;
a0d0e21e
LW		 2920 if (result < 0)
2921 RETPUSHUNDEF;
3280af22 2922 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 2923 RETPUSHYES;
2924 RETPUSHNO;
2925}
2926
2927PP(pp_ftblk)
2928{
cea2e8a9 2929 I32 result = my_stat();
4e35701f 2930 djSP;
a0d0e21e
LW		 2931 if (result < 0)
2932 RETPUSHUNDEF;
3280af22 2933 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 2934 RETPUSHYES;
2935 RETPUSHNO;
2936}
2937
2938PP(pp_ftfile)
2939{
cea2e8a9 2940 I32 result = my_stat();
4e35701f 2941 djSP;
a0d0e21e
LW		 2942 if (result < 0)
2943 RETPUSHUNDEF;
3280af22 2944 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 2945 RETPUSHYES;
2946 RETPUSHNO;
2947}
2948
2949PP(pp_ftdir)
2950{
cea2e8a9 2951 I32 result = my_stat();
4e35701f 2952 djSP;
a0d0e21e
LW		 2953 if (result < 0)
2954 RETPUSHUNDEF;
3280af22 2955 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 2956 RETPUSHYES;
2957 RETPUSHNO;
2958}
2959
2960PP(pp_ftpipe)
2961{
cea2e8a9 2962 I32 result = my_stat();
4e35701f 2963 djSP;
a0d0e21e
LW		 2964 if (result < 0)
2965 RETPUSHUNDEF;
3280af22 2966 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 2967 RETPUSHYES;
2968 RETPUSHNO;
2969}
2970
2971PP(pp_ftlink)
2972{
cea2e8a9 2973 I32 result = my_lstat();
4e35701f 2974 djSP;
a0d0e21e
LW		 2975 if (result < 0)
2976 RETPUSHUNDEF;
3280af22 2977 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 2978 RETPUSHYES;
2979 RETPUSHNO;
2980}
2981
2982PP(pp_ftsuid)
2983{
4e35701f 2984 djSP;
a0d0e21e 2985#ifdef S_ISUID
cea2e8a9 2986 I32 result = my_stat();
a0d0e21e
LW		 2987 SPAGAIN;
2988 if (result < 0)
2989 RETPUSHUNDEF;
3280af22 2990 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 2991 RETPUSHYES;
2992#endif
2993 RETPUSHNO;
2994}
2995
2996PP(pp_ftsgid)
2997{
4e35701f 2998 djSP;
a0d0e21e 2999#ifdef S_ISGID
cea2e8a9 3000 I32 result = my_stat();
a0d0e21e
LW		 3001 SPAGAIN;
3002 if (result < 0)
3003 RETPUSHUNDEF;
3280af22 3004 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3005 RETPUSHYES;
3006#endif
3007 RETPUSHNO;
3008}
3009
3010PP(pp_ftsvtx)
3011{
4e35701f 3012 djSP;
a0d0e21e 3013#ifdef S_ISVTX
cea2e8a9 3014 I32 result = my_stat();
a0d0e21e
LW		 3015 SPAGAIN;
3016 if (result < 0)
3017 RETPUSHUNDEF;
3280af22 3018 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3019 RETPUSHYES;
3020#endif
3021 RETPUSHNO;
3022}
3023
3024PP(pp_fttty)
3025{
4e35701f 3026 djSP;
a0d0e21e
LW		 3027 int fd;
3028 GV *gv;
fb73857a 3029 char *tmps = Nullch;
2d8e6c8d 3030 STRLEN n_a;
fb73857a 3031
533c011a 3032 if (PL_op->op_flags & OPf_REF)
146174a9 3033 gv = cGVOP_gv;
fb73857a 3034 else if (isGV(TOPs))
3035 gv = (GV*)POPs;
3036 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3037 gv = (GV*)SvRV(POPs);
a0d0e21e 3038 else
2d8e6c8d 3039 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3040
a0d0e21e 3041 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3042 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3043 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3044 fd = atoi(tmps);
3045 else
3046 RETPUSHUNDEF;
6ad3d225 3047 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3048 RETPUSHYES;
3049 RETPUSHNO;
3050}
3051
16d20bd9
AD		 3052#if defined(atarist) /* this will work with atariST. Configure will
3053 make guesses for other systems. */
3054# define FILE_base(f) ((f)->_base)
3055# define FILE_ptr(f) ((f)->_ptr)
3056# define FILE_cnt(f) ((f)->_cnt)
3057# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3058#endif
3059
3060PP(pp_fttext)
3061{
4e35701f 3062 djSP;
a0d0e21e
LW		 3063 I32 i;
3064 I32 len;
3065 I32 odd = 0;
3066 STDCHAR tbuf[512];
3067 register STDCHAR *s;
3068 register IO *io;
5f05dabc 3069 register SV *sv;
3070 GV *gv;
2d8e6c8d 3071 STRLEN n_a;
146174a9 3072 PerlIO *fp;
a0d0e21e 3073
533c011a 3074 if (PL_op->op_flags & OPf_REF)
146174a9 3075 gv = cGVOP_gv;
5f05dabc 3076 else if (isGV(TOPs))
3077 gv = (GV*)POPs;
3078 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3079 gv = (GV*)SvRV(POPs);
3080 else
3081 gv = Nullgv;
3082
3083 if (gv) {
a0d0e21e 3084 EXTEND(SP, 1);
3280af22
NIS		 3085 if (gv == PL_defgv) {
3086 if (PL_statgv)
3087 io = GvIO(PL_statgv);
a0d0e21e 3088 else {
3280af22 3089 sv = PL_statname;
a0d0e21e
LW		 3090 goto really_filename;
3091 }
3092 }
3093 else {
3280af22
NIS		 3094 PL_statgv = gv;
3095 PL_laststatval = -1;
3096 sv_setpv(PL_statname, "");
3097 io = GvIO(PL_statgv);
a0d0e21e
LW		 3098 }
3099 if (io && IoIFP(io)) {
5f05dabc 3100 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3101 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3102 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3103 if (PL_laststatval < 0)
5f05dabc 3104 RETPUSHUNDEF;
3280af22 3105 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
533c011a 3106 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3107 RETPUSHNO;
3108 else
3109 RETPUSHYES;
a20bf0c3 3110 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3111 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3112 if (i != EOF)
760ac839 3113 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3114 }
a20bf0c3 3115 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3116 RETPUSHYES;
a20bf0c3
JH		 3117 len = PerlIO_get_bufsiz(IoIFP(io));
3118 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3119 /* sfio can have large buffers - limit to 512 */
3120 if (len > 512)
3121 len = 512;
a0d0e21e
LW		 3122 }
3123 else {
2dd78f96
JH		 3124 dTHR;
3125 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3126 gv = cGVOP_gv;
2dd78f96 3127 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3128 }
748a9306 3129 SETERRNO(EBADF,RMS$_IFI);
a0d0e21e
LW		 3130 RETPUSHUNDEF;
3131 }
3132 }
3133 else {
3134 sv = POPs;
5f05dabc 3135 really_filename:
3280af22
NIS		 3136 PL_statgv = Nullgv;
3137 PL_laststatval = -1;
2d8e6c8d 3138 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3139 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
2d8e6c8d 3140 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
cea2e8a9 3141 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
a0d0e21e
LW		 3142 RETPUSHUNDEF;
3143 }
146174a9
CB		 3144 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3145 if (PL_laststatval < 0) {
3146 (void)PerlIO_close(fp);
5f05dabc 3147 RETPUSHUNDEF;
146174a9 3148 }
92d29cee 3149 do_binmode(fp, '<', O_BINARY);
146174a9
CB		 3150 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3151 (void)PerlIO_close(fp);
a0d0e21e 3152 if (len <= 0) {
533c011a 3153 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3154 RETPUSHNO; /* special case NFS directories */
3155 RETPUSHYES; /* null file is anything */
3156 }
3157 s = tbuf;
3158 }
3159
3160 /* now scan s to look for textiness */
4633a7c4 3161 /* XXX ASCII dependent code */
a0d0e21e 3162
146174a9
CB		 3163#if defined(DOSISH) || defined(USEMYBINMODE)
3164 /* ignore trailing ^Z on short files */
3165 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3166 --len;
3167#endif
3168
a0d0e21e
LW		 3169 for (i = 0; i < len; i++, s++) {
3170 if (!*s) { /* null never allowed in text */
3171 odd += len;
3172 break;
3173 }
9d116dd7 3174#ifdef EBCDIC
301e8125 3175 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3176 odd++;
3177#else
146174a9
CB		 3178 else if (*s & 128) {
3179#ifdef USE_LOCALE
b3f66c68
GS		 3180 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3181 continue;
3182#endif
3183 /* utf8 characters don't count as odd */
3184 if (*s & 0x40) {
3185 int ulen = UTF8SKIP(s);
3186 if (ulen < len - i) {
3187 int j;
3188 for (j = 1; j < ulen; j++) {
3189 if ((s[j] & 0xc0) != 0x80)
3190 goto not_utf8;
3191 }
3192 --ulen; /* loop does extra increment */
3193 s += ulen;
3194 i += ulen;
3195 continue;
3196 }
3197 }
3198 not_utf8:
3199 odd++;
146174a9 3200 }
a0d0e21e
LW		 3201 else if (*s < 32 &&
3202 *s != '\n' && *s != '\r' && *s != '\b' &&
3203 *s != '\t' && *s != '\f' && *s != 27)
3204 odd++;
9d116dd7 3205#endif
a0d0e21e
LW		 3206 }
3207
533c011a 3208 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3209 RETPUSHNO;
3210 else
3211 RETPUSHYES;
3212}
3213
3214PP(pp_ftbinary)
3215{
cea2e8a9 3216 return pp_fttext();
a0d0e21e
LW		 3217}
3218
3219/* File calls. */
3220
3221PP(pp_chdir)
3222{
4e35701f 3223 djSP; dTARGET;
a0d0e21e
LW		 3224 char *tmps;
3225 SV **svp;
2d8e6c8d 3226 STRLEN n_a;
a0d0e21e
LW		 3227
3228 if (MAXARG < 1)
3229 tmps = Nullch;
3230 else
2d8e6c8d 3231 tmps = POPpx;
a0d0e21e 3232 if (!tmps || !*tmps) {
3280af22 3233 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
a0d0e21e 3234 if (svp)
2d8e6c8d 3235 tmps = SvPV(*svp, n_a);
a0d0e21e
LW		 3236 }
3237 if (!tmps || !*tmps) {
3280af22 3238 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
a0d0e21e 3239 if (svp)
2d8e6c8d 3240 tmps = SvPV(*svp, n_a);
a0d0e21e 3241 }
491527d0
GS		 3242#ifdef VMS
3243 if (!tmps || !*tmps) {
6b88bc9c 3244 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
491527d0 3245 if (svp)
2d8e6c8d 3246 tmps = SvPV(*svp, n_a);
491527d0
GS		 3247 }
3248#endif
a0d0e21e 3249 TAINT_PROPER("chdir");
6ad3d225 3250 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3251#ifdef VMS
3252 /* Clear the DEFAULT element of ENV so we'll get the new value
3253 * in the future. */
6b88bc9c 3254 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3255#endif
a0d0e21e
LW		 3256 RETURN;
3257}
3258
3259PP(pp_chown)
3260{
4e35701f 3261 djSP; dMARK; dTARGET;
a0d0e21e
LW		 3262 I32 value;
3263#ifdef HAS_CHOWN
533c011a 3264 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3265 SP = MARK;
3266 PUSHi(value);
3267 RETURN;
3268#else
cea2e8a9 3269 DIE(aTHX_ PL_no_func, "Unsupported function chown");
a0d0e21e
LW		 3270#endif
3271}
3272
3273PP(pp_chroot)
3274{
4e35701f 3275 djSP; dTARGET;
a0d0e21e
LW		 3276 char *tmps;
3277#ifdef HAS_CHROOT
2d8e6c8d
GS		 3278 STRLEN n_a;
3279 tmps = POPpx;
a0d0e21e
LW		 3280 TAINT_PROPER("chroot");
3281 PUSHi( chroot(tmps) >= 0 );
3282 RETURN;
3283#else
cea2e8a9 3284 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3285#endif
3286}
3287
3288PP(pp_unlink)
3289{
4e35701f 3290 djSP; dMARK; dTARGET;
a0d0e21e 3291 I32 value;
533c011a 3292 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3293 SP = MARK;
3294 PUSHi(value);
3295 RETURN;
3296}
3297
3298PP(pp_chmod)
3299{
4e35701f 3300 djSP; dMARK; dTARGET;
a0d0e21e 3301 I32 value;
533c011a 3302 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3303 SP = MARK;
3304 PUSHi(value);
3305 RETURN;
3306}
3307
3308PP(pp_utime)
3309{
4e35701f 3310 djSP; dMARK; dTARGET;
a0d0e21e 3311 I32 value;
533c011a 3312 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3313 SP = MARK;
3314 PUSHi(value);
3315 RETURN;
3316}
3317
3318PP(pp_rename)
3319{
4e35701f 3320 djSP; dTARGET;
a0d0e21e 3321 int anum;
2d8e6c8d 3322 STRLEN n_a;
a0d0e21e 3323
2d8e6c8d
GS		 3324 char *tmps2 = POPpx;
3325 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3326 TAINT_PROPER("rename");
3327#ifdef HAS_RENAME
baed7233 3328 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3329#else
6b88bc9c 3330 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3331 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3332 anum = 1;
3333 else {
3654eb6c 3334 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3335 (void)UNLINK(tmps2);
3336 if (!(anum = link(tmps, tmps2)))
3337 anum = UNLINK(tmps);
3338 }
a0d0e21e
LW		 3339 }
3340#endif
3341 SETi( anum >= 0 );
3342 RETURN;
3343}
3344
3345PP(pp_link)
3346{
4e35701f 3347 djSP; dTARGET;
a0d0e21e 3348#ifdef HAS_LINK
2d8e6c8d
GS		 3349 STRLEN n_a;
3350 char *tmps2 = POPpx;
3351 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3352 TAINT_PROPER("link");
146174a9 3353 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
a0d0e21e 3354#else
cea2e8a9 3355 DIE(aTHX_ PL_no_func, "Unsupported function link");
a0d0e21e
LW		 3356#endif
3357 RETURN;
3358}
3359
3360PP(pp_symlink)
3361{
4e35701f 3362 djSP; dTARGET;
a0d0e21e 3363#ifdef HAS_SYMLINK
2d8e6c8d
GS		 3364 STRLEN n_a;
3365 char *tmps2 = POPpx;
3366 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3367 TAINT_PROPER("symlink");
3368 SETi( symlink(tmps, tmps2) >= 0 );
3369 RETURN;
3370#else
cea2e8a9 3371 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3372#endif
3373}
3374
3375PP(pp_readlink)
3376{
4e35701f 3377 djSP; dTARGET;
a0d0e21e
LW		 3378#ifdef HAS_SYMLINK
3379 char *tmps;
46fc3d4c 3380 char buf[MAXPATHLEN];
a0d0e21e 3381 int len;
2d8e6c8d 3382 STRLEN n_a;
46fc3d4c 3383
fb73857a 3384#ifndef INCOMPLETE_TAINTS
3385 TAINT;
3386#endif
2d8e6c8d 3387 tmps = POPpx;
a0d0e21e
LW		 3388 len = readlink(tmps, buf, sizeof buf);
3389 EXTEND(SP, 1);
3390 if (len < 0)
3391 RETPUSHUNDEF;
3392 PUSHp(buf, len);
3393 RETURN;
3394#else
3395 EXTEND(SP, 1);
3396 RETSETUNDEF; /* just pretend it's a normal file */
3397#endif
3398}
3399
3400#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3401STATIC int
cea2e8a9 3402S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3403{
1e422769 3404 char *save_filename = filename;
3405 char *cmdline;
3406 char *s;
760ac839 3407 PerlIO *myfp;
1e422769 3408 int anum = 1;
a0d0e21e 3409
1e422769 3410 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3411 strcpy(cmdline, cmd);
3412 strcat(cmdline, " ");
3413 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3414 *s++ = '\\';
3415 *s++ = *filename++;
3416 }
3417 strcpy(s, " 2>&1");
6ad3d225 3418 myfp = PerlProc_popen(cmdline, "r");
1e422769 3419 Safefree(cmdline);
3420
a0d0e21e 3421 if (myfp) {
1e422769 3422 SV *tmpsv = sv_newmortal();
6b88bc9c 3423 /* Need to save/restore 'PL_rs' ?? */
760ac839 3424 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3425 (void)PerlProc_pclose(myfp);
a0d0e21e 3426 if (s != Nullch) {
1e422769 3427 int e;
3428 for (e = 1;
a0d0e21e 3429#ifdef HAS_SYS_ERRLIST
1e422769 3430 e <= sys_nerr
3431#endif
3432 ; e++)
3433 {
3434 /* you don't see this */
3435 char *errmsg =
3436#ifdef HAS_SYS_ERRLIST
3437 sys_errlist[e]
a0d0e21e 3438#else
1e422769 3439 strerror(e)
a0d0e21e 3440#endif
1e422769 3441 ;
3442 if (!errmsg)
3443 break;
3444 if (instr(s, errmsg)) {
3445 SETERRNO(e,0);
3446 return 0;
3447 }
a0d0e21e 3448 }
748a9306 3449 SETERRNO(0,0);
a0d0e21e
LW		 3450#ifndef EACCES
3451#define EACCES EPERM
3452#endif
1e422769 3453 if (instr(s, "cannot make"))
748a9306 3454 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3455 else if (instr(s, "existing file"))
748a9306 3456 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3457 else if (instr(s, "ile exists"))
748a9306 3458 SETERRNO(EEXIST,RMS$_FEX);
1e422769 3459 else if (instr(s, "non-exist"))
748a9306 3460 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3461 else if (instr(s, "does not exist"))
748a9306 3462 SETERRNO(ENOENT,RMS$_FNF);
1e422769 3463 else if (instr(s, "not empty"))
748a9306 3464 SETERRNO(EBUSY,SS$_DEVOFFLINE);
1e422769 3465 else if (instr(s, "cannot access"))
748a9306 3466 SETERRNO(EACCES,RMS$_PRV);
a0d0e21e 3467 else
748a9306 3468 SETERRNO(EPERM,RMS$_PRV);
a0d0e21e
LW		 3469 return 0;
3470 }
3471 else { /* some mkdirs return no failure indication */
6b88bc9c 3472 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3473 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3474 anum = !anum;
3475 if (anum)
748a9306 3476 SETERRNO(0,0);
a0d0e21e 3477 else
748a9306 3478 SETERRNO(EACCES,RMS$_PRV); /* a guess */
a0d0e21e
LW		 3479 }
3480 return anum;
3481 }
3482 else
3483 return 0;
3484}
3485#endif
3486
3487PP(pp_mkdir)
3488{
4e35701f 3489 djSP; dTARGET;
5a211162 3490 int mode;
a0d0e21e
LW		 3491#ifndef HAS_MKDIR
3492 int oldumask;
3493#endif
2d8e6c8d 3494 STRLEN n_a;
5a211162
GS		 3495 char *tmps;
3496
3497 if (MAXARG > 1)
3498 mode = POPi;
3499 else
3500 mode = 0777;
3501
3502 tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3503
3504 TAINT_PROPER("mkdir");
3505#ifdef HAS_MKDIR
6ad3d225 3506 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3507#else
3508 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3509 oldumask = PerlLIO_umask(0);
3510 PerlLIO_umask(oldumask);
3511 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e
LW		 3512#endif
3513 RETURN;
3514}
3515
3516PP(pp_rmdir)
3517{
4e35701f 3518 djSP; dTARGET;
a0d0e21e 3519 char *tmps;
2d8e6c8d 3520 STRLEN n_a;
a0d0e21e 3521
2d8e6c8d 3522 tmps = POPpx;
a0d0e21e
LW		 3523 TAINT_PROPER("rmdir");
3524#ifdef HAS_RMDIR
6ad3d225 3525 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e
LW		 3526#else
3527 XPUSHi( dooneliner("rmdir", tmps) );
3528#endif
3529 RETURN;
3530}
3531
3532/* Directory calls. */
3533
3534PP(pp_open_dir)
3535{
4e35701f 3536 djSP;
a0d0e21e 3537#if defined(Direntry_t) && defined(HAS_READDIR)
2d8e6c8d
GS		 3538 STRLEN n_a;
3539 char *dirname = POPpx;
a0d0e21e
LW		 3540 GV *gv = (GV*)POPs;
3541 register IO *io = GvIOn(gv);
3542
3543 if (!io)
3544 goto nope;
3545
3546 if (IoDIRP(io))
6ad3d225
GS		 3547 PerlDir_close(IoDIRP(io));
3548 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3549 goto nope;
3550
3551 RETPUSHYES;
3552nope:
3553 if (!errno)
748a9306 3554 SETERRNO(EBADF,RMS$_DIR);
a0d0e21e
LW		 3555 RETPUSHUNDEF;
3556#else
cea2e8a9 3557 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3558#endif
3559}
3560
3561PP(pp_readdir)
3562{
4e35701f 3563 djSP;
a0d0e21e
LW		 3564#if defined(Direntry_t) && defined(HAS_READDIR)
3565#ifndef I_DIRENT
20ce7b12 3566 Direntry_t *readdir (DIR *);