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[perl #34976] substr uses utf8 length cache incorrectly
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790
JH		 89#elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
6ad3d225 121# define my_chsize PerlLIO_chsize
cbdc8872 122#endif
123
ff68c719 124#ifdef HAS_FLOCK
125# define FLOCK flock
126#else /* no flock() */
127
36477c24 128 /* fcntl.h might not have been included, even if it exists, because
129 the current Configure only sets I_FCNTL if it's needed to pick up
130 the *_OK constants. Make sure it has been included before testing
131 the fcntl() locking constants. */
132# if defined(HAS_FCNTL) && !defined(I_FCNTL)
133# include <fcntl.h>
134# endif
135
9d9004a9 136# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 137# define FLOCK fcntl_emulate_flock
138# define FCNTL_EMULATE_FLOCK
139# else /* no flock() or fcntl(F_SETLK,...) */
140# ifdef HAS_LOCKF
141# define FLOCK lockf_emulate_flock
142# define LOCKF_EMULATE_FLOCK
143# endif /* lockf */
144# endif /* no flock() or fcntl(F_SETLK,...) */
145
146# ifdef FLOCK
20ce7b12 147 static int FLOCK (int, int);
ff68c719 148
149 /*
150 * These are the flock() constants. Since this sytems doesn't have
151 * flock(), the values of the constants are probably not available.
152 */
153# ifndef LOCK_SH
154# define LOCK_SH 1
155# endif
156# ifndef LOCK_EX
157# define LOCK_EX 2
158# endif
159# ifndef LOCK_NB
160# define LOCK_NB 4
161# endif
162# ifndef LOCK_UN
163# define LOCK_UN 8
164# endif
165# endif /* emulating flock() */
166
167#endif /* no flock() */
55497cff 168
85ab1d1d
JH		 169#define ZBTLEN 10
170static char zero_but_true[ZBTLEN + 1] = "0 but true";
171
5ff3f7a4
GS		 172#if defined(I_SYS_ACCESS) && !defined(R_OK)
173# include <sys/access.h>
174#endif
175
c529f79d
CB		 176#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
177# define FD_CLOEXEC 1 /* NeXT needs this */
178#endif
179
a4af207c
JH		 180#include "reentr.h"
181
9cffb111
OS		 182#ifdef __Lynx__
183/* Missing protos on LynxOS */
184void sethostent(int);
185void endhostent(void);
186void setnetent(int);
187void endnetent(void);
188void setprotoent(int);
189void endprotoent(void);
190void setservent(int);
191void endservent(void);
192#endif
193
5ff3f7a4
GS		 194#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
195#undef PERL_EFF_ACCESS_W_OK
196#undef PERL_EFF_ACCESS_X_OK
197
198/* F_OK unused: if stat() cannot find it... */
199
200#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 201 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 202# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
203# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
204# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
205#endif
206
207#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 208# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 209# include <sys/security.h>
210# endif
c955f117
JH		 211# ifdef ACC_SELF
212 /* HP SecureWare */
213# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
214# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
215# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
216# else
217 /* SCO */
218# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
219# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
220# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
221# endif
5ff3f7a4
GS		 222#endif
223
224#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 225 /* AIX */
5ff3f7a4
GS		 226# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
227# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
228# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
229#endif
230
327c3667
GS		 231#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
232 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
233 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 234/* The Hard Way. */
327c3667 235STATIC int
7f4774ae 236S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 237{
5ff3f7a4
GS		 238 Uid_t ruid = getuid();
239 Uid_t euid = geteuid();
240 Gid_t rgid = getgid();
241 Gid_t egid = getegid();
242 int res;
243
146174a9 244 LOCK_CRED_MUTEX;
5ff3f7a4 245#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 246 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 247#else
248#ifdef HAS_SETREUID
249 if (setreuid(euid, ruid))
250#else
251#ifdef HAS_SETRESUID
252 if (setresuid(euid, ruid, (Uid_t)-1))
253#endif
254#endif
cea2e8a9 255 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 256#endif
257
258#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 259 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 260#else
261#ifdef HAS_SETREGID
262 if (setregid(egid, rgid))
263#else
264#ifdef HAS_SETRESGID
265 if (setresgid(egid, rgid, (Gid_t)-1))
266#endif
267#endif
cea2e8a9 268 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 269#endif
270
271 res = access(path, mode);
272
273#ifdef HAS_SETREUID
274 if (setreuid(ruid, euid))
275#else
276#ifdef HAS_SETRESUID
277 if (setresuid(ruid, euid, (Uid_t)-1))
278#endif
279#endif
cea2e8a9 280 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 281
282#ifdef HAS_SETREGID
283 if (setregid(rgid, egid))
284#else
285#ifdef HAS_SETRESGID
286 if (setresgid(rgid, egid, (Gid_t)-1))
287#endif
288#endif
cea2e8a9 289 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 290 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 291
292 return res;
293}
294# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
295# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
296# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
297#endif
298
299#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 300/* With it or without it: anyway you get a warning: either that
301 it is unused, or it is declared static and never defined.
302 */
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{
39644a26 314 dSP; dTARGET;
760ac839 315 PerlIO *fp;
2d8e6c8d
GS		 316 STRLEN n_a;
317 char *tmps = POPpx;
54310121 318 I32 gimme = GIMME_V;
e1ec3a88 319 const 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";
dd374669 326 fp = PerlProc_popen(tmps, (char *)mode);
a0d0e21e 327 if (fp) {
e1ec3a88 328 const char *type = NULL;
ac27b0f5
NIS		 329 if (PL_curcop->cop_io) {
330 type = SvPV_nolen(PL_curcop->cop_io);
331 }
ac27b0f5
NIS		 332 if (type && *type)
333 PerlIO_apply_layers(aTHX_ fp,mode,type);
334
54310121 335 if (gimme == G_VOID) {
96827780
MB		 336 char tmpbuf[256];
337 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 338 /*SUPPRESS 530*/
339 ;
340 }
341 else if (gimme == G_SCALAR) {
75af1a9c
DM		 342 ENTER;
343 SAVESPTR(PL_rs);
fa326138 344 PL_rs = &PL_sv_undef;
aa689395 345 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 346 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
347 /*SUPPRESS 530*/
348 ;
75af1a9c 349 LEAVE;
a0d0e21e 350 XPUSHs(TARG);
aa689395 351 SvTAINTED_on(TARG);
a0d0e21e
LW		 352 }
353 else {
354 SV *sv;
355
356 for (;;) {
8d6dde3e 357 sv = NEWSV(56, 79);
a0d0e21e
LW		 358 if (sv_gets(sv, fp, 0) == Nullch) {
359 SvREFCNT_dec(sv);
360 break;
361 }
362 XPUSHs(sv_2mortal(sv));
363 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 364 SvPV_shrink_to_cur(sv);
a0d0e21e 365 }
aa689395 366 SvTAINTED_on(sv);
a0d0e21e
LW		 367 }
368 }
6ad3d225 369 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 370 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 371 }
372 else {
f86702cc 373 STATUS_NATIVE_SET(-1);
54310121 374 if (gimme == G_SCALAR)
a0d0e21e
LW		 375 RETPUSHUNDEF;
376 }
377
378 RETURN;
379}
380
381PP(pp_glob)
382{
383 OP *result;
f5284f61
IZ		 384 tryAMAGICunTARGET(iter, -1);
385
71686f12
GS		 386 /* Note that we only ever get here if File::Glob fails to load
387 * without at the same time croaking, for some reason, or if
388 * perl was built with PERL_EXTERNAL_GLOB */
389
a0d0e21e 390 ENTER;
a0d0e21e 391
c90c0ff4 392#ifndef VMS
3280af22 393 if (PL_tainting) {
7bac28a0 394 /*
395 * The external globbing program may use things we can't control,
396 * so for security reasons we must assume the worst.
397 */
398 TAINT;
22c35a8c 399 taint_proper(PL_no_security, "glob");
7bac28a0 400 }
c90c0ff4 401#endif /* !VMS */
7bac28a0 402
3280af22
NIS		 403 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
404 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 405
3280af22 406 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 407 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 408#ifndef DOSISH
409#ifndef CSH
6b88bc9c 410 *SvPVX(PL_rs) = '\n';
a0d0e21e 411#endif /* !CSH */
55497cff 412#endif /* !DOSISH */
c07a80fd 413
a0d0e21e
LW		 414 result = do_readline();
415 LEAVE;
416 return result;
417}
418
a0d0e21e
LW		 419PP(pp_rcatline)
420{
146174a9 421 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 422 return do_readline();
423}
424
425PP(pp_warn)
426{
39644a26 427 dSP; dMARK;
06bf62c7 428 SV *tmpsv;
e1ec3a88 429 const char *tmps;
06bf62c7 430 STRLEN len;
a0d0e21e
LW		 431 if (SP - MARK != 1) {
432 dTARGET;
3280af22 433 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 434 tmpsv = TARG;
a0d0e21e
LW		 435 SP = MARK + 1;
436 }
437 else {
06bf62c7 438 tmpsv = TOPs;
a0d0e21e 439 }
06bf62c7 440 tmps = SvPV(tmpsv, len);
7b102d90 441 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 442 SV *error = ERRSV;
443 (void)SvUPGRADE(error, SVt_PV);
444 if (SvPOK(error) && SvCUR(error))
445 sv_catpv(error, "\t...caught");
06bf62c7
GS		 446 tmpsv = error;
447 tmps = SvPV(tmpsv, len);
a0d0e21e 448 }
06bf62c7
GS		 449 if (!tmps || !len)
450 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
451
cb50131a 452 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 453 RETSETYES;
454}
455
456PP(pp_die)
457{
39644a26 458 dSP; dMARK;
e1ec3a88 459 const char *tmps;
06bf62c7
GS		 460 SV *tmpsv;
461 STRLEN len;
462 bool multiarg = 0;
96e176bf
CL		 463#ifdef VMS
464 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
465#endif
a0d0e21e
LW		 466 if (SP - MARK != 1) {
467 dTARGET;
3280af22 468 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 469 tmpsv = TARG;
470 tmps = SvPV(tmpsv, len);
471 multiarg = 1;
a0d0e21e
LW		 472 SP = MARK + 1;
473 }
474 else {
4e6ea2c3 475 tmpsv = TOPs;
bf12611a 476 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 477 }
06bf62c7 478 if (!tmps || !len) {
4e6ea2c3
GS		 479 SV *error = ERRSV;
480 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 481 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
482 if (!multiarg)
4e6ea2c3 483 SvSetSV(error,tmpsv);
06bf62c7 484 else if (sv_isobject(error)) {
05423cc9
GS		 485 HV *stash = SvSTASH(SvRV(error));
486 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
487 if (gv) {
146174a9 488 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 489 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 490 EXTEND(SP, 3);
491 PUSHMARK(SP);
492 PUSHs(error);
493 PUSHs(file);
494 PUSHs(line);
495 PUTBACK;
864dbfa3
GS		 496 call_sv((SV*)GvCV(gv),
497 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 498 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 499 }
500 }
5df617be 501 DIE_NULL;
4e6ea2c3
GS		 502 }
503 else {
504 if (SvPOK(error) && SvCUR(error))
505 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 506 tmpsv = error;
507 tmps = SvPV(tmpsv, len);
4e6ea2c3 508 }
a0d0e21e 509 }
06bf62c7
GS		 510 if (!tmps || !len)
511 tmpsv = sv_2mortal(newSVpvn("Died", 4));
512
cb50131a 513 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 514}
515
516/* I/O. */
517
518PP(pp_open)
519{
39644a26 520 dSP;
a567e93b
NIS		 521 dMARK; dORIGMARK;
522 dTARGET;
a0d0e21e
LW		 523 GV *gv;
524 SV *sv;
5b468f54 525 IO *io;
a0d0e21e
LW		 526 char *tmps;
527 STRLEN len;
4592e6ca 528 MAGIC *mg;
a567e93b 529 bool ok;
a0d0e21e 530
a567e93b 531 gv = (GV *)*++MARK;
5f05dabc 532 if (!isGV(gv))
cea2e8a9 533 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 534 if ((io = GvIOp(gv)))
36477c24 535 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 536
5b468f54 537 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 538 /* Method's args are same as ours ... */
539 /* ... except handle is replaced by the object */
5b468f54 540 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 541 PUSHMARK(MARK);
4592e6ca
NIS		 542 PUTBACK;
543 ENTER;
864dbfa3 544 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 545 LEAVE;
546 SPAGAIN;
547 RETURN;
548 }
549
a567e93b
NIS		 550 if (MARK < SP) {
551 sv = *++MARK;
552 }
553 else {
554 sv = GvSV(gv);
555 }
556
a0d0e21e 557 tmps = SvPV(sv, len);
a567e93b
NIS		 558 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
559 SP = ORIGMARK;
560 if (ok)
3280af22
NIS		 561 PUSHi( (I32)PL_forkprocess );
562 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 563 PUSHi(0);
564 else
565 RETPUSHUNDEF;
566 RETURN;
567}
568
569PP(pp_close)
570{
39644a26 571 dSP;
a0d0e21e 572 GV *gv;
5b468f54 573 IO *io;
1d603a67 574 MAGIC *mg;
a0d0e21e
LW		 575
576 if (MAXARG == 0)
3280af22 577 gv = PL_defoutgv;
a0d0e21e
LW		 578 else
579 gv = (GV*)POPs;
1d603a67 580
5b468f54
AMS		 581 if (gv && (io = GvIO(gv))
582 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
583 {
1d603a67 584 PUSHMARK(SP);
5b468f54 585 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 586 PUTBACK;
587 ENTER;
864dbfa3 588 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 589 LEAVE;
590 SPAGAIN;
591 RETURN;
592 }
a0d0e21e 593 EXTEND(SP, 1);
54310121 594 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 595 RETURN;
596}
597
598PP(pp_pipe_op)
599{
a0d0e21e 600#ifdef HAS_PIPE
9cad6237 601 dSP;
a0d0e21e
LW		 602 GV *rgv;
603 GV *wgv;
604 register IO *rstio;
605 register IO *wstio;
606 int fd[2];
607
608 wgv = (GV*)POPs;
609 rgv = (GV*)POPs;
610
611 if (!rgv || !wgv)
612 goto badexit;
613
4633a7c4 614 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 615 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 616 rstio = GvIOn(rgv);
617 wstio = GvIOn(wgv);
618
619 if (IoIFP(rstio))
620 do_close(rgv, FALSE);
621 if (IoIFP(wstio))
622 do_close(wgv, FALSE);
623
6ad3d225 624 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 625 goto badexit;
626
460c8493
IZ		 627 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
628 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 629 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 630 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 631 IoTYPE(rstio) = IoTYPE_RDONLY;
632 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 633
634 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 635 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 636 else PerlLIO_close(fd[0]);
760ac839 637 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 638 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 639 goto badexit;
640 }
4771b018
GS		 641#if defined(HAS_FCNTL) && defined(F_SETFD)
642 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
643 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
644#endif
a0d0e21e
LW		 645 RETPUSHYES;
646
647badexit:
648 RETPUSHUNDEF;
649#else
cea2e8a9 650 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 651#endif
652}
653
654PP(pp_fileno)
655{
39644a26 656 dSP; dTARGET;
a0d0e21e
LW		 657 GV *gv;
658 IO *io;
760ac839 659 PerlIO *fp;
4592e6ca
NIS		 660 MAGIC *mg;
661
a0d0e21e
LW		 662 if (MAXARG < 1)
663 RETPUSHUNDEF;
664 gv = (GV*)POPs;
4592e6ca 665
5b468f54
AMS		 666 if (gv && (io = GvIO(gv))
667 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
668 {
4592e6ca 669 PUSHMARK(SP);
5b468f54 670 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 671 PUTBACK;
672 ENTER;
864dbfa3 673 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 674 LEAVE;
675 SPAGAIN;
676 RETURN;
677 }
678
c289d2f7
JH		 679 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
680 /* Can't do this because people seem to do things like
681 defined(fileno($foo)) to check whether $foo is a valid fh.
682 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
683 report_evil_fh(gv, io, PL_op->op_type);
684 */
a0d0e21e 685 RETPUSHUNDEF;
c289d2f7
JH		 686 }
687
760ac839 688 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 689 RETURN;
690}
691
692PP(pp_umask)
693{
39644a26 694 dSP; dTARGET;
d7e492a4 695#ifdef HAS_UMASK
761237fe 696 Mode_t anum;
a0d0e21e 697
a0d0e21e 698 if (MAXARG < 1) {
6ad3d225
GS		 699 anum = PerlLIO_umask(0);
700 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 701 }
702 else
6ad3d225 703 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 704 TAINT_PROPER("umask");
705 XPUSHi(anum);
706#else
eec2d3df
GS		 707 /* Only DIE if trying to restrict permissions on `user' (self).
708 * Otherwise it's harmless and more useful to just return undef
709 * since 'group' and 'other' concepts probably don't exist here. */
710 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 711 DIE(aTHX_ "umask not implemented");
6b88bc9c 712 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 713#endif
714 RETURN;
715}
716
717PP(pp_binmode)
718{
39644a26 719 dSP;
a0d0e21e
LW		 720 GV *gv;
721 IO *io;
760ac839 722 PerlIO *fp;
4592e6ca 723 MAGIC *mg;
16fe6d59 724 SV *discp = Nullsv;
a0d0e21e
LW		 725
726 if (MAXARG < 1)
727 RETPUSHUNDEF;
60382766 728 if (MAXARG > 1) {
16fe6d59 729 discp = POPs;
60382766 730 }
a0d0e21e 731
301e8125 732 gv = (GV*)POPs;
4592e6ca 733
5b468f54
AMS		 734 if (gv && (io = GvIO(gv))
735 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
736 {
4592e6ca 737 PUSHMARK(SP);
5b468f54 738 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 739 if (discp)
740 XPUSHs(discp);
4592e6ca
NIS		 741 PUTBACK;
742 ENTER;
864dbfa3 743 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 744 LEAVE;
745 SPAGAIN;
746 RETURN;
747 }
a0d0e21e
LW		 748
749 EXTEND(SP, 1);
50f846a7 750 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 751 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
752 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 753 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 754 RETPUSHUNDEF;
755 }
a0d0e21e 756
40d98b49 757 PUTBACK;
60382766 758 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 759 (discp) ? SvPV_nolen(discp) : Nullch)) {
38af81ff
JH		 760 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
761 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
762 mode_from_discipline(discp),
763 (discp) ? SvPV_nolen(discp) : Nullch)) {
764 SPAGAIN;
765 RETPUSHUNDEF;
766 }
767 }
40d98b49 768 SPAGAIN;
a0d0e21e 769 RETPUSHYES;
40d98b49
JH		 770 }
771 else {
772 SPAGAIN;
a0d0e21e 773 RETPUSHUNDEF;
40d98b49 774 }
a0d0e21e
LW		 775}
776
777PP(pp_tie)
778{
39644a26 779 dSP;
e336de0d 780 dMARK;
a0d0e21e
LW		 781 SV *varsv;
782 HV* stash;
783 GV *gv;
a0d0e21e 784 SV *sv;
3280af22 785 I32 markoff = MARK - PL_stack_base;
e1ec3a88 786 const char *methname;
14befaf4 787 int how = PERL_MAGIC_tied;
e336de0d 788 U32 items;
a0d0e21e 789
e336de0d 790 varsv = *++MARK;
6b05c17a
NIS		 791 switch(SvTYPE(varsv)) {
792 case SVt_PVHV:
793 methname = "TIEHASH";
03c6e78a 794 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 795 break;
796 case SVt_PVAV:
797 methname = "TIEARRAY";
798 break;
799 case SVt_PVGV:
7fb37951
AMS		 800#ifdef GV_UNIQUE_CHECK
801 if (GvUNIQUE((GV*)varsv)) {
802 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 803 }
804#endif
6b05c17a 805 methname = "TIEHANDLE";
14befaf4 806 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 807 /* For tied filehandles, we apply tiedscalar magic to the IO
808 slot of the GP rather than the GV itself. AMS 20010812 */
809 if (!GvIOp(varsv))
810 GvIOp(varsv) = newIO();
811 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 812 break;
813 default:
814 methname = "TIESCALAR";
14befaf4 815 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 816 break;
817 }
e336de0d
GS		 818 items = SP - MARK++;
819 if (sv_isobject(*MARK)) {
6b05c17a 820 ENTER;
e788e7d3 821 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 822 PUSHMARK(SP);
eb160463 823 EXTEND(SP,(I32)items);
e336de0d
GS		 824 while (items--)
825 PUSHs(*MARK++);
826 PUTBACK;
864dbfa3 827 call_method(methname, G_SCALAR);
301e8125 828 }
6b05c17a 829 else {
864dbfa3 830 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 831 * perhaps to get different error message ?
832 */
e336de0d 833 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 834 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 835 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
836 methname, *MARK);
6b05c17a
NIS		 837 }
838 ENTER;
e788e7d3 839 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 840 PUSHMARK(SP);
eb160463 841 EXTEND(SP,(I32)items);
e336de0d
GS		 842 while (items--)
843 PUSHs(*MARK++);
844 PUTBACK;
864dbfa3 845 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 846 }
a0d0e21e
LW		 847 SPAGAIN;
848
849 sv = TOPs;
d3acc0f7 850 POPSTACK;
a0d0e21e 851 if (sv_isobject(sv)) {
33c27489 852 sv_unmagic(varsv, how);
ae21d580 853 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 854 if (varsv == SvRV(sv) &&
d87ebaca
YST		 855 (SvTYPE(varsv) == SVt_PVAV ||
856 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 857 Perl_croak(aTHX_
858 "Self-ties of arrays and hashes are not supported");
d87ebaca 859 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 860 }
861 LEAVE;
3280af22 862 SP = PL_stack_base + markoff;
a0d0e21e
LW		 863 PUSHs(sv);
864 RETURN;
865}
866
867PP(pp_untie)
868{
39644a26 869 dSP;
5b468f54 870 MAGIC *mg;
33c27489 871 SV *sv = POPs;
14befaf4
DM		 872 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
873 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 874
5b468f54
AMS		 875 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
876 RETPUSHYES;
877
65eba18f
JH		 878 if ((mg = SvTIED_mg(sv, how))) {
879 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 880 GV *gv;
881 CV *cv = NULL;
fa2b88e0
JS		 882 if (obj) {
883 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
884 isGV(gv) && (cv = GvCV(gv))) {
885 PUSHMARK(SP);
886 XPUSHs(SvTIED_obj((SV*)gv, mg));
887 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
888 PUTBACK;
889 ENTER;
890 call_sv((SV *)cv, G_VOID);
891 LEAVE;
892 SPAGAIN;
893 }
894 else if (ckWARN(WARN_UNTIE)) {
895 if (mg && SvREFCNT(obj) > 1)
9014280d 896 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 897 "untie attempted while %"UVuf" inner references still exist",
898 (UV)SvREFCNT(obj) - 1 ) ;
899 }
cbdc8872 900 }
901 }
38193a09 902 sv_unmagic(sv, how) ;
55497cff 903 RETPUSHYES;
a0d0e21e
LW		 904}
905
c07a80fd 906PP(pp_tied)
907{
39644a26 908 dSP;
5b468f54 909 MAGIC *mg;
33c27489 910 SV *sv = POPs;
14befaf4
DM		 911 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
912 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 913
914 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
915 RETPUSHUNDEF;
c07a80fd 916
155aba94 917 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 918 SV *osv = SvTIED_obj(sv, mg);
919 if (osv == mg->mg_obj)
920 osv = sv_mortalcopy(osv);
921 PUSHs(osv);
922 RETURN;
c07a80fd 923 }
c07a80fd 924 RETPUSHUNDEF;
925}
926
a0d0e21e
LW		 927PP(pp_dbmopen)
928{
39644a26 929 dSP;
a0d0e21e
LW		 930 HV *hv;
931 dPOPPOPssrl;
932 HV* stash;
933 GV *gv;
a0d0e21e
LW		 934 SV *sv;
935
936 hv = (HV*)POPs;
937
3280af22 938 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 939 sv_setpv(sv, "AnyDBM_File");
940 stash = gv_stashsv(sv, FALSE);
8ebc5c01 941 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 942 PUTBACK;
864dbfa3 943 require_pv("AnyDBM_File.pm");
a0d0e21e 944 SPAGAIN;
8ebc5c01 945 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 946 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 947 }
948
57d3b86d 949 ENTER;
924508f0 950 PUSHMARK(SP);
6b05c17a 951
924508f0 952 EXTEND(SP, 5);
a0d0e21e
LW		 953 PUSHs(sv);
954 PUSHs(left);
955 if (SvIV(right))
b448e4fe 956 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 957 else
b448e4fe 958 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 959 PUSHs(right);
57d3b86d 960 PUTBACK;
864dbfa3 961 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 962 SPAGAIN;
963
964 if (!sv_isobject(TOPs)) {
924508f0
GS		 965 SP--;
966 PUSHMARK(SP);
a0d0e21e
LW		 967 PUSHs(sv);
968 PUSHs(left);
b448e4fe 969 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 970 PUSHs(right);
a0d0e21e 971 PUTBACK;
864dbfa3 972 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 973 SPAGAIN;
974 }
975
6b05c17a 976 if (sv_isobject(TOPs)) {
14befaf4
DM		 977 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
978 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 979 }
a0d0e21e
LW		 980 LEAVE;
981 RETURN;
982}
983
984PP(pp_dbmclose)
985{
cea2e8a9 986 return pp_untie();
a0d0e21e
LW		 987}
988
989PP(pp_sselect)
990{
a0d0e21e 991#ifdef HAS_SELECT
9cad6237 992 dSP; dTARGET;
a0d0e21e
LW		 993 register I32 i;
994 register I32 j;
995 register char *s;
996 register SV *sv;
65202027 997 NV value;
a0d0e21e
LW		 998 I32 maxlen = 0;
999 I32 nfound;
1000 struct timeval timebuf;
1001 struct timeval *tbuf = &timebuf;
1002 I32 growsize;
1003 char *fd_sets[4];
2d8e6c8d 1004 STRLEN n_a;
a0d0e21e
LW		 1005#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1006 I32 masksize;
1007 I32 offset;
1008 I32 k;
1009
1010# if BYTEORDER & 0xf0000
1011# define ORDERBYTE (0x88888888 - BYTEORDER)
1012# else
1013# define ORDERBYTE (0x4444 - BYTEORDER)
1014# endif
1015
1016#endif
1017
1018 SP -= 4;
1019 for (i = 1; i <= 3; i++) {
1020 if (!SvPOK(SP[i]))
1021 continue;
1022 j = SvCUR(SP[i]);
1023 if (maxlen < j)
1024 maxlen = j;
1025 }
1026
5ff3f7a4 1027/* little endians can use vecs directly */
e366b469 1028#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1029# ifdef NFDBITS
a0d0e21e 1030
5ff3f7a4
GS		 1031# ifndef NBBY
1032# define NBBY 8
1033# endif
a0d0e21e
LW		 1034
1035 masksize = NFDBITS / NBBY;
5ff3f7a4 1036# else
a0d0e21e 1037 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1038# endif
a0d0e21e
LW		 1039 Zero(&fd_sets[0], 4, char*);
1040#endif
1041
ad517f75
MHM		 1042# if SELECT_MIN_BITS == 1
1043 growsize = sizeof(fd_set);
1044# else
1045# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1046# undef SELECT_MIN_BITS
1047# define SELECT_MIN_BITS __FD_SETSIZE
1048# endif
e366b469
PG		 1049 /* If SELECT_MIN_BITS is greater than one we most probably will want
1050 * to align the sizes with SELECT_MIN_BITS/8 because for example
1051 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1052 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1053 * on (sets/tests/clears bits) is 32 bits. */
1054 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1055# endif
1056
a0d0e21e
LW		 1057 sv = SP[4];
1058 if (SvOK(sv)) {
1059 value = SvNV(sv);
1060 if (value < 0.0)
1061 value = 0.0;
1062 timebuf.tv_sec = (long)value;
65202027 1063 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1064 timebuf.tv_usec = (long)(value * 1000000.0);
1065 }
1066 else
1067 tbuf = Null(struct timeval*);
1068
1069 for (i = 1; i <= 3; i++) {
1070 sv = SP[i];
1071 if (!SvOK(sv)) {
1072 fd_sets[i] = 0;
1073 continue;
1074 }
1075 else if (!SvPOK(sv))
2d8e6c8d 1076 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1077 j = SvLEN(sv);
1078 if (j < growsize) {
1079 Sv_Grow(sv, growsize);
a0d0e21e 1080 }
c07a80fd 1081 j = SvCUR(sv);
1082 s = SvPVX(sv) + j;
1083 while (++j <= growsize) {
1084 *s++ = '\0';
1085 }
1086
a0d0e21e
LW		 1087#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1088 s = SvPVX(sv);
1089 New(403, fd_sets[i], growsize, char);
1090 for (offset = 0; offset < growsize; offset += masksize) {
1091 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1092 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1093 }
1094#else
1095 fd_sets[i] = SvPVX(sv);
1096#endif
1097 }
1098
dc4c69d9
JH		 1099#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1100 /* Can't make just the (void*) conditional because that would be
1101 * cpp #if within cpp macro, and not all compilers like that. */
1102 nfound = PerlSock_select(
1103 maxlen * 8,
1104 (Select_fd_set_t) fd_sets[1],
1105 (Select_fd_set_t) fd_sets[2],
1106 (Select_fd_set_t) fd_sets[3],
1107 (void*) tbuf); /* Workaround for compiler bug. */
1108#else
6ad3d225 1109 nfound = PerlSock_select(
a0d0e21e
LW		 1110 maxlen * 8,
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 tbuf);
dc4c69d9 1115#endif
a0d0e21e
LW		 1116 for (i = 1; i <= 3; i++) {
1117 if (fd_sets[i]) {
1118 sv = SP[i];
1119#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1120 s = SvPVX(sv);
1121 for (offset = 0; offset < growsize; offset += masksize) {
1122 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1123 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1124 }
1125 Safefree(fd_sets[i]);
1126#endif
1127 SvSETMAGIC(sv);
1128 }
1129 }
1130
5c477709
RGS		 1131 if (nfound == -1)
1132 PUSHs(&PL_sv_undef);
1133 else
1134 PUSHi(nfound);
a0d0e21e 1135 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1136 value = (NV)(timebuf.tv_sec) +
1137 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1138 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1139 sv_setnv(sv, value);
1140 }
1141 RETURN;
1142#else
cea2e8a9 1143 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1144#endif
1145}
1146
4633a7c4 1147void
864dbfa3 1148Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1149{
1150 if (gv)
1151 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1152 if (PL_defoutgv)
1153 SvREFCNT_dec(PL_defoutgv);
1154 PL_defoutgv = gv;
4633a7c4
LW		 1155}
1156
a0d0e21e
LW		 1157PP(pp_select)
1158{
39644a26 1159 dSP; dTARGET;
4633a7c4
LW		 1160 GV *newdefout, *egv;
1161 HV *hv;
1162
533c011a 1163 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1164
3280af22 1165 egv = GvEGV(PL_defoutgv);
4633a7c4 1166 if (!egv)
3280af22 1167 egv = PL_defoutgv;
4633a7c4
LW		 1168 hv = GvSTASH(egv);
1169 if (! hv)
3280af22 1170 XPUSHs(&PL_sv_undef);
4633a7c4 1171 else {
cbdc8872 1172 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1173 if (gvp && *gvp == egv) {
f7aaccc2 1174 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1175 XPUSHTARG;
1176 }
1177 else {
1178 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1179 }
4633a7c4
LW		 1180 }
1181
1182 if (newdefout) {
ded8aa31
GS		 1183 if (!GvIO(newdefout))
1184 gv_IOadd(newdefout);
4633a7c4
LW		 1185 setdefout(newdefout);
1186 }
1187
a0d0e21e
LW		 1188 RETURN;
1189}
1190
1191PP(pp_getc)
1192{
39644a26 1193 dSP; dTARGET;
a0d0e21e 1194 GV *gv;
90133b69 1195 IO *io = NULL;
2ae324a7 1196 MAGIC *mg;
a0d0e21e 1197
32da55ab 1198 if (MAXARG == 0)
3280af22 1199 gv = PL_stdingv;
a0d0e21e
LW		 1200 else
1201 gv = (GV*)POPs;
2ae324a7 1202
5b468f54
AMS		 1203 if (gv && (io = GvIO(gv))
1204 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1205 {
54310121 1206 I32 gimme = GIMME_V;
2ae324a7 1207 PUSHMARK(SP);
5b468f54 1208 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1209 PUTBACK;
1210 ENTER;
864dbfa3 1211 call_method("GETC", gimme);
2ae324a7 1212 LEAVE;
1213 SPAGAIN;
54310121 1214 if (gimme == G_SCALAR)
1215 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1216 RETURN;
1217 }
90133b69 1218 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1219 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1220 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1221 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1222 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1223 RETPUSHUNDEF;
90133b69 1224 }
bbce6d69 1225 TAINT;
a0d0e21e 1226 sv_setpv(TARG, " ");
9bc64814 1227 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1228 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1229 /* Find out how many bytes the char needs */
1230 Size_t len = UTF8SKIP(SvPVX(TARG));
1231 if (len > 1) {
1232 SvGROW(TARG,len+1);
1233 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1234 SvCUR_set(TARG,1+len);
1235 }
1236 SvUTF8_on(TARG);
1237 }
a0d0e21e
LW		 1238 PUSHTARG;
1239 RETURN;
1240}
1241
1242PP(pp_read)
1243{
cea2e8a9 1244 return pp_sysread();
a0d0e21e
LW		 1245}
1246
76e3520e 1247STATIC OP *
cea2e8a9 1248S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1249{
c09156bb 1250 register PERL_CONTEXT *cx;
54310121 1251 I32 gimme = GIMME_V;
a0d0e21e
LW		 1252
1253 ENTER;
1254 SAVETMPS;
1255
146174a9 1256 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1257 PUSHFORMAT(cx);
f39bc417 1258 cx->blk_sub.retop = retop;
dd2155a4 1259 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1260
4633a7c4 1261 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1262 return CvSTART(cv);
1263}
1264
1265PP(pp_enterwrite)
1266{
39644a26 1267 dSP;
a0d0e21e
LW		 1268 register GV *gv;
1269 register IO *io;
1270 GV *fgv;
1271 CV *cv;
1272
1273 if (MAXARG == 0)
3280af22 1274 gv = PL_defoutgv;
a0d0e21e
LW		 1275 else {
1276 gv = (GV*)POPs;
1277 if (!gv)
3280af22 1278 gv = PL_defoutgv;
a0d0e21e
LW		 1279 }
1280 EXTEND(SP, 1);
1281 io = GvIO(gv);
1282 if (!io) {
1283 RETPUSHNO;
1284 }
1285 if (IoFMT_GV(io))
1286 fgv = IoFMT_GV(io);
1287 else
1288 fgv = gv;
1289
1290 cv = GvFORM(fgv);
a0d0e21e 1291 if (!cv) {
2dd78f96 1292 char *name = NULL;
a0d0e21e 1293 if (fgv) {
748a9306 1294 SV *tmpsv = sv_newmortal();
43693395 1295 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1296 name = SvPV_nolen(tmpsv);
a0d0e21e 1297 }
2dd78f96
JH		 1298 if (name && *name)
1299 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1300 DIE(aTHX_ "Not a format reference");
a0d0e21e 1301 }
44a8e56a 1302 if (CvCLONE(cv))
1303 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1304
44a8e56a 1305 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1306 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1307}
1308
1309PP(pp_leavewrite)
1310{
39644a26 1311 dSP;
a0d0e21e
LW		 1312 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1313 register IO *io = GvIOp(gv);
760ac839
LW		 1314 PerlIO *ofp = IoOFP(io);
1315 PerlIO *fp;
a0d0e21e
LW		 1316 SV **newsp;
1317 I32 gimme;
c09156bb 1318 register PERL_CONTEXT *cx;
a0d0e21e 1319
760ac839 1320 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1321 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1322 if (!io || !ofp)
1323 goto forget_top;
3280af22
NIS		 1324 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1325 PL_formtarget != PL_toptarget)
a0d0e21e 1326 {
4633a7c4
LW		 1327 GV *fgv;
1328 CV *cv;
a0d0e21e
LW		 1329 if (!IoTOP_GV(io)) {
1330 GV *topgv;
46fc3d4c 1331 SV *topname;
a0d0e21e
LW		 1332
1333 if (!IoTOP_NAME(io)) {
1334 if (!IoFMT_NAME(io))
1335 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1336 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1337 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1338 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1339 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1340 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1341 else
ff5bdd37 1342 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1343 }
1344 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1345 if (!topgv || !GvFORM(topgv)) {
b929a54b 1346 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1347 goto forget_top;
1348 }
1349 IoTOP_GV(io) = topgv;
1350 }
748a9306
LW		 1351 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1352 I32 lines = IoLINES_LEFT(io);
3280af22 1353 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1354 if (lines <= 0) /* Yow, header didn't even fit!!! */
1355 goto forget_top;
748a9306
LW		 1356 while (lines-- > 0) {
1357 s = strchr(s, '\n');
1358 if (!s)
1359 break;
1360 s++;
1361 }
1362 if (s) {
d75029d0
NIS		 1363 STRLEN save = SvCUR(PL_formtarget);
1364 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1365 do_print(PL_formtarget, ofp);
1366 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1367 sv_chop(PL_formtarget, s);
1368 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1369 }
1370 }
a0d0e21e 1371 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1372 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1373 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1374 IoPAGE(io)++;
3280af22 1375 PL_formtarget = PL_toptarget;
748a9306 1376 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1377 fgv = IoTOP_GV(io);
1378 if (!fgv)
cea2e8a9 1379 DIE(aTHX_ "bad top format reference");
4633a7c4 1380 cv = GvFORM(fgv);
2dd78f96
JH		 1381 {
1382 char *name = NULL;
1383 if (!cv) {
1384 SV *sv = sv_newmortal();
1385 gv_efullname4(sv, fgv, Nullch, FALSE);
1386 name = SvPV_nolen(sv);
1387 }
1388 if (name && *name)
1389 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1390 /* why no:
1391 else
1392 DIE(aTHX_ "Undefined top format called");
1393 ?*/
4633a7c4 1394 }
44a8e56a 1395 if (CvCLONE(cv))
1396 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1397 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1398 }
1399
1400 forget_top:
3280af22 1401 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1402 POPFORMAT(cx);
1403 LEAVE;
1404
1405 fp = IoOFP(io);
1406 if (!fp) {
599cee73 1407 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1408 if (IoIFP(io))
1409 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1410 else if (ckWARN(WARN_CLOSED))
bc37a18f 1411 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1412 }
3280af22 1413 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1414 }
1415 else {
3280af22 1416 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1417 if (ckWARN(WARN_IO))
9014280d 1418 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1419 }
d75029d0 1420 if (!do_print(PL_formtarget, fp))
3280af22 1421 PUSHs(&PL_sv_no);
a0d0e21e 1422 else {
3280af22
NIS		 1423 FmLINES(PL_formtarget) = 0;
1424 SvCUR_set(PL_formtarget, 0);
1425 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1426 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1427 (void)PerlIO_flush(fp);
3280af22 1428 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1429 }
1430 }
9cbac4c7 1431 /* bad_ofp: */
3280af22 1432 PL_formtarget = PL_bodytarget;
a0d0e21e 1433 PUTBACK;
f39bc417 1434 return cx->blk_sub.retop;
a0d0e21e
LW		 1435}
1436
1437PP(pp_prtf)
1438{
39644a26 1439 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1440 GV *gv;
1441 IO *io;
760ac839 1442 PerlIO *fp;
26db47c4 1443 SV *sv;
46fc3d4c 1444 MAGIC *mg;
a0d0e21e 1445
533c011a 1446 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1447 gv = (GV*)*++MARK;
1448 else
3280af22 1449 gv = PL_defoutgv;
46fc3d4c 1450
5b468f54
AMS		 1451 if (gv && (io = GvIO(gv))
1452 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1453 {
46fc3d4c 1454 if (MARK == ORIGMARK) {
4352c267 1455 MEXTEND(SP, 1);
46fc3d4c 1456 ++MARK;
1457 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1458 ++SP;
1459 }
1460 PUSHMARK(MARK - 1);
5b468f54 1461 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1462 PUTBACK;
1463 ENTER;
864dbfa3 1464 call_method("PRINTF", G_SCALAR);
46fc3d4c 1465 LEAVE;
1466 SPAGAIN;
1467 MARK = ORIGMARK + 1;
1468 *MARK = *SP;
1469 SP = MARK;
1470 RETURN;
1471 }
1472
26db47c4 1473 sv = NEWSV(0,0);
a0d0e21e 1474 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1475 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1476 report_evil_fh(gv, io, PL_op->op_type);
93189314 1477 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1478 goto just_say_no;
1479 }
1480 else if (!(fp = IoOFP(io))) {
599cee73 1481 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1482 if (IoIFP(io))
1483 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1484 else if (ckWARN(WARN_CLOSED))
bc37a18f 1485 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1486 }
93189314 1487 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1488 goto just_say_no;
1489 }
1490 else {
1491 do_sprintf(sv, SP - MARK, MARK + 1);
1492 if (!do_print(sv, fp))
1493 goto just_say_no;
1494
1495 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1496 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1497 goto just_say_no;
1498 }
1499 SvREFCNT_dec(sv);
1500 SP = ORIGMARK;
3280af22 1501 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1502 RETURN;
1503
1504 just_say_no:
1505 SvREFCNT_dec(sv);
1506 SP = ORIGMARK;
3280af22 1507 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1508 RETURN;
1509}
1510
c07a80fd 1511PP(pp_sysopen)
1512{
39644a26 1513 dSP;
c07a80fd 1514 GV *gv;
c07a80fd 1515 SV *sv;
1516 char *tmps;
1517 STRLEN len;
1518 int mode, perm;
1519
1520 if (MAXARG > 3)
1521 perm = POPi;
1522 else
1523 perm = 0666;
1524 mode = POPi;
1525 sv = POPs;
1526 gv = (GV *)POPs;
1527
4592e6ca
NIS		 1528 /* Need TIEHANDLE method ? */
1529
c07a80fd 1530 tmps = SvPV(sv, len);
1531 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1532 IoLINES(GvIOp(gv)) = 0;
3280af22 1533 PUSHs(&PL_sv_yes);
c07a80fd 1534 }
1535 else {
3280af22 1536 PUSHs(&PL_sv_undef);
c07a80fd 1537 }
1538 RETURN;
1539}
1540
a0d0e21e
LW		 1541PP(pp_sysread)
1542{
39644a26 1543 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1544 int offset;
1545 GV *gv;
1546 IO *io;
1547 char *buffer;
5b54f415 1548 SSize_t length;
eb5c063a 1549 SSize_t count;
1e422769 1550 Sock_size_t bufsize;
748a9306 1551 SV *bufsv;
a0d0e21e 1552 STRLEN blen;
2ae324a7 1553 MAGIC *mg;
eb5c063a 1554 int fp_utf8;
1dd30107
NC		 1555 int buffer_utf8;
1556 SV *read_target;
eb5c063a
NIS		 1557 Size_t got = 0;
1558 Size_t wanted;
1d636c13 1559 bool charstart = FALSE;
87330c3c
JH		 1560 STRLEN charskip = 0;
1561 STRLEN skip = 0;
a0d0e21e
LW		 1562
1563 gv = (GV*)*++MARK;
5b468f54
AMS		 1564 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1565 && gv && (io = GvIO(gv))
1566 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1567 {
2ae324a7 1568 SV *sv;
1569
1570 PUSHMARK(MARK-1);
5b468f54 1571 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1572 ENTER;
864dbfa3 1573 call_method("READ", G_SCALAR);
2ae324a7 1574 LEAVE;
1575 SPAGAIN;
1576 sv = POPs;
1577 SP = ORIGMARK;
1578 PUSHs(sv);
1579 RETURN;
1580 }
1581
a0d0e21e
LW		 1582 if (!gv)
1583 goto say_undef;
748a9306 1584 bufsv = *++MARK;
ff68c719 1585 if (! SvOK(bufsv))
1586 sv_setpvn(bufsv, "", 0);
a0d0e21e 1587 length = SvIVx(*++MARK);
748a9306 1588 SETERRNO(0,0);
a0d0e21e
LW		 1589 if (MARK < SP)
1590 offset = SvIVx(*++MARK);
1591 else
1592 offset = 0;
1593 io = GvIO(gv);
b5fe5ca2
SR		 1594 if (!io || !IoIFP(io)) {
1595 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1596 report_evil_fh(gv, io, PL_op->op_type);
1597 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1598 goto say_undef;
b5fe5ca2 1599 }
0064a8a9 1600 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1601 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1602 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1603 SvUTF8_on(bufsv);
9b9d7ce8 1604 buffer_utf8 = 0;
7d59b7e4
NIS		 1605 }
1606 else {
1607 buffer = SvPV_force(bufsv, blen);
1dd30107 1608 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1609 }
1610 if (length < 0)
1611 DIE(aTHX_ "Negative length");
eb5c063a 1612 wanted = length;
7d59b7e4 1613
d0965105
JH		 1614 charstart = TRUE;
1615 charskip = 0;
87330c3c 1616 skip = 0;
d0965105 1617
a0d0e21e 1618#ifdef HAS_SOCKET
533c011a 1619 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1620 char namebuf[MAXPATHLEN];
17a8c7ba 1621#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1622 bufsize = sizeof (struct sockaddr_in);
1623#else
46fc3d4c 1624 bufsize = sizeof namebuf;
490ab354 1625#endif
abf95952
IZ		 1626#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1627 if (bufsize >= 256)
1628 bufsize = 255;
1629#endif
eb160463 1630 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1631 /* 'offset' means 'flags' here */
eb5c063a 1632 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1633 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1634 if (count < 0)
a0d0e21e 1635 RETPUSHUNDEF;
4107cc59
OF		 1636#ifdef EPOC
1637 /* Bogus return without padding */
1638 bufsize = sizeof (struct sockaddr_in);
1639#endif
eb5c063a 1640 SvCUR_set(bufsv, count);
748a9306
LW		 1641 *SvEND(bufsv) = '\0';
1642 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1643 if (fp_utf8)
1644 SvUTF8_on(bufsv);
748a9306 1645 SvSETMAGIC(bufsv);
aac0dd9a 1646 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1647 if (!(IoFLAGS(io) & IOf_UNTAINT))
1648 SvTAINTED_on(bufsv);
a0d0e21e 1649 SP = ORIGMARK;
46fc3d4c 1650 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1651 PUSHs(TARG);
1652 RETURN;
1653 }
1654#else
911d147d 1655 if (PL_op->op_type == OP_RECV)
cea2e8a9 1656 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1657#endif
eb5c063a
NIS		 1658 if (DO_UTF8(bufsv)) {
1659 /* offset adjust in characters not bytes */
1660 blen = sv_len_utf8(bufsv);
7d59b7e4 1661 }
bbce6d69 1662 if (offset < 0) {
eb160463 1663 if (-offset > (int)blen)
cea2e8a9 1664 DIE(aTHX_ "Offset outside string");
bbce6d69 1665 offset += blen;
1666 }
eb5c063a
NIS		 1667 if (DO_UTF8(bufsv)) {
1668 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1669 if (offset >= (int)blen)
1670 offset += SvCUR(bufsv) - blen;
1671 else
1672 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1673 }
1674 more_bytes:
cd52b7b2 1675 bufsize = SvCUR(bufsv);
1dd30107
NC		 1676 /* Allocating length + offset + 1 isn't perfect in the case of reading
1677 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1678 unduly.
1679 (should be 2 * length + offset + 1, or possibly something longer if
1680 PL_encoding is true) */
eb160463 1681 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1682 if (offset > bufsize) { /* Zero any newly allocated space */
1683 Zero(buffer+bufsize, offset-bufsize, char);
1684 }
eb5c063a 1685 buffer = buffer + offset;
1dd30107
NC		 1686 if (!buffer_utf8) {
1687 read_target = bufsv;
1688 } else {
1689 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1690 concatenate it to the current buffer. */
1691
1692 /* Truncate the existing buffer to the start of where we will be
1693 reading to: */
1694 SvCUR_set(bufsv, offset);
1695
1696 read_target = sv_newmortal();
1697 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1698 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1699 }
eb5c063a 1700
533c011a 1701 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1702#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1703 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1704 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1705 buffer, length, 0);
a7092146
GS		 1706 }
1707 else
1708#endif
1709 {
eb5c063a
NIS		 1710 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1711 buffer, length);
a7092146 1712 }
a0d0e21e
LW		 1713 }
1714 else
1715#ifdef HAS_SOCKET__bad_code_maybe
50952442 1716 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1717 char namebuf[MAXPATHLEN];
490ab354
JH		 1718#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1719 bufsize = sizeof (struct sockaddr_in);
1720#else
46fc3d4c 1721 bufsize = sizeof namebuf;
490ab354 1722#endif
eb5c063a 1723 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1724 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1725 }
1726 else
1727#endif
3b02c43c 1728 {
eb5c063a
NIS		 1729 count = PerlIO_read(IoIFP(io), buffer, length);
1730 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1731 if (count == 0 && PerlIO_error(IoIFP(io)))
1732 count = -1;
3b02c43c 1733 }
eb5c063a 1734 if (count < 0) {
a00b5bd3 1735 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1736 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1737 goto say_undef;
af8c498a 1738 }
1dd30107
NC		 1739 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1740 *SvEND(read_target) = '\0';
1741 (void)SvPOK_only(read_target);
0064a8a9 1742 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1743 /* Look at utf8 we got back and count the characters */
1744 char *bend = buffer + count;
1745 while (buffer < bend) {
d0965105
JH		 1746 if (charstart) {
1747 skip = UTF8SKIP(buffer);
1748 charskip = 0;
1749 }
1750 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1751 /* partial character - try for rest of it */
1752 length = skip - (bend-buffer);
1753 offset = bend - SvPVX(bufsv);
d0965105
JH		 1754 charstart = FALSE;
1755 charskip += count;
eb5c063a
NIS		 1756 goto more_bytes;
1757 }
1758 else {
1759 got++;
1760 buffer += skip;
d0965105
JH		 1761 charstart = TRUE;
1762 charskip = 0;
eb5c063a
NIS		 1763 }
1764 }
1765 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1766 provided amount read (count) was what was requested (length)
1767 */
1768 if (got < wanted && count == length) {
d0965105 1769 length = wanted - got;
eb5c063a
NIS		 1770 offset = bend - SvPVX(bufsv);
1771 goto more_bytes;
1772 }
1773 /* return value is character count */
1774 count = got;
1775 SvUTF8_on(bufsv);
1776 }
1dd30107
NC		 1777 else if (buffer_utf8) {
1778 /* Let svcatsv upgrade the bytes we read in to utf8.
1779 The buffer is a mortal so will be freed soon. */
1780 sv_catsv_nomg(bufsv, read_target);
1781 }
748a9306 1782 SvSETMAGIC(bufsv);
aac0dd9a 1783 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1784 if (!(IoFLAGS(io) & IOf_UNTAINT))
1785 SvTAINTED_on(bufsv);
a0d0e21e 1786 SP = ORIGMARK;
eb5c063a 1787 PUSHi(count);
a0d0e21e
LW		 1788 RETURN;
1789
1790 say_undef:
1791 SP = ORIGMARK;
1792 RETPUSHUNDEF;
1793}
1794
1795PP(pp_syswrite)
1796{
39644a26 1797 dSP;
092bebab
JH		 1798 int items = (SP - PL_stack_base) - TOPMARK;
1799 if (items == 2) {
9f089d78 1800 SV *sv;
092bebab 1801 EXTEND(SP, 1);
9f089d78
SB		 1802 sv = sv_2mortal(newSViv(sv_len(*SP)));
1803 PUSHs(sv);
092bebab
JH		 1804 PUTBACK;
1805 }
cea2e8a9 1806 return pp_send();
a0d0e21e
LW		 1807}
1808
1809PP(pp_send)
1810{
39644a26 1811 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1812 GV *gv;
1813 IO *io;
748a9306 1814 SV *bufsv;
a0d0e21e 1815 char *buffer;
8c99d73e
GS		 1816 Size_t length;
1817 SSize_t retval;
a0d0e21e 1818 STRLEN blen;
1d603a67 1819 MAGIC *mg;
a0d0e21e
LW		 1820
1821 gv = (GV*)*++MARK;
14befaf4 1822 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1823 && gv && (io = GvIO(gv))
1824 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1825 {
1d603a67
GB		 1826 SV *sv;
1827
1828 PUSHMARK(MARK-1);
5b468f54 1829 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1830 ENTER;
864dbfa3 1831 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1832 LEAVE;
1833 SPAGAIN;
1834 sv = POPs;
1835 SP = ORIGMARK;
1836 PUSHs(sv);
1837 RETURN;
1838 }
a0d0e21e
LW		 1839 if (!gv)
1840 goto say_undef;
748a9306 1841 bufsv = *++MARK;
8c99d73e 1842#if Size_t_size > IVSIZE
3c001241 1843 length = (Size_t)SvNVx(*++MARK);
146174a9 1844#else
3c001241 1845 length = (Size_t)SvIVx(*++MARK);
146174a9 1846#endif
3c001241 1847 if ((SSize_t)length < 0)
cea2e8a9 1848 DIE(aTHX_ "Negative length");
748a9306 1849 SETERRNO(0,0);
a0d0e21e
LW		 1850 io = GvIO(gv);
1851 if (!io || !IoIFP(io)) {
8c99d73e 1852 retval = -1;
bc37a18f
RG		 1853 if (ckWARN(WARN_CLOSED))
1854 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1855 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1856 goto say_undef;
1857 }
1858
1859 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1860 if (!SvUTF8(bufsv)) {
1861 bufsv = sv_2mortal(newSVsv(bufsv));
1862 buffer = sv_2pvutf8(bufsv, &blen);
1863 } else
1864 buffer = SvPV(bufsv, blen);
a0d0e21e 1865 }
7d59b7e4 1866 else {
4de5f5ca
JH		 1867 if (DO_UTF8(bufsv)) {
1868 /* Not modifying source SV, so making a temporary copy. */
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 sv_utf8_downgrade(bufsv, FALSE);
1871 }
1872 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1873 }
1874
1875 if (PL_op->op_type == OP_SYSWRITE) {
1876 IV offset;
1877 if (DO_UTF8(bufsv)) {
1878 /* length and offset are in chars */
1879 blen = sv_len_utf8(bufsv);
1880 }
bbce6d69 1881 if (MARK < SP) {
a0d0e21e 1882 offset = SvIVx(*++MARK);
bbce6d69 1883 if (offset < 0) {
eb160463 1884 if (-offset > (IV)blen)
cea2e8a9 1885 DIE(aTHX_ "Offset outside string");
bbce6d69 1886 offset += blen;
eb160463 1887 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1888 DIE(aTHX_ "Offset outside string");
bbce6d69 1889 } else
a0d0e21e
LW		 1890 offset = 0;
1891 if (length > blen - offset)
1892 length = blen - offset;
7d59b7e4 1893 if (DO_UTF8(bufsv)) {
c8d31a35 1894 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1895 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1896 }
1897 else {
1898 buffer = buffer+offset;
1899 }
a7092146 1900#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1901 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1902 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1903 buffer, length, 0);
a7092146
GS		 1904 }
1905 else
1906#endif
1907 {
94e4c244 1908 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1909 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1910 buffer, length);
a7092146 1911 }
a0d0e21e
LW		 1912 }
1913#ifdef HAS_SOCKET
1914 else if (SP > MARK) {
1915 char *sockbuf;
1916 STRLEN mlen;
1917 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1918 /* length is really flags */
8c99d73e
GS		 1919 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1920 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1921 }
1922 else
7d59b7e4 1923 /* length is really flags */
8c99d73e 1924 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1925#else
1926 else
cea2e8a9 1927 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1928#endif
8c99d73e 1929 if (retval < 0)
a0d0e21e
LW		 1930 goto say_undef;
1931 SP = ORIGMARK;
f36eea10
JH		 1932 if (DO_UTF8(bufsv))
1933 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1934#if Size_t_size > IVSIZE
1935 PUSHn(retval);
1936#else
1937 PUSHi(retval);
1938#endif
a0d0e21e
LW		 1939 RETURN;
1940
1941 say_undef:
1942 SP = ORIGMARK;
1943 RETPUSHUNDEF;
1944}
1945
1946PP(pp_recv)
1947{
cea2e8a9 1948 return pp_sysread();
a0d0e21e
LW		 1949}
1950
1951PP(pp_eof)
1952{
39644a26 1953 dSP;
a0d0e21e 1954 GV *gv;
5b468f54 1955 IO *io;
4592e6ca 1956 MAGIC *mg;
a0d0e21e 1957
32da55ab 1958 if (MAXARG == 0) {
146174a9
CB		 1959 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1960 IO *io;
ed2c6b9b 1961 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1962 io = GvIO(gv);
1963 if (io && !IoIFP(io)) {
1964 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1965 IoLINES(io) = 0;
1966 IoFLAGS(io) &= ~IOf_START;
dd374669 1967 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1968 sv_setpvn(GvSV(gv), "-", 1);
1969 SvSETMAGIC(GvSV(gv));
1970 }
1971 else if (!nextargv(gv))
1972 RETPUSHYES;
1973 }
1974 }
1975 else
1976 gv = PL_last_in_gv; /* eof */
1977 }
a0d0e21e 1978 else
146174a9 1979 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1980
5b468f54
AMS		 1981 if (gv && (io = GvIO(gv))
1982 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1983 {
4592e6ca 1984 PUSHMARK(SP);
5b468f54 1985 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1986 PUTBACK;
1987 ENTER;
864dbfa3 1988 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1989 LEAVE;
1990 SPAGAIN;
1991 RETURN;
1992 }
1993
54310121 1994 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1995 RETURN;
1996}
1997
1998PP(pp_tell)
1999{
39644a26 2000 dSP; dTARGET;
301e8125 2001 GV *gv;
5b468f54 2002 IO *io;
4592e6ca 2003 MAGIC *mg;
a0d0e21e 2004
32da55ab 2005 if (MAXARG == 0)
3280af22 2006 gv = PL_last_in_gv;
a0d0e21e 2007 else
3280af22 2008 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2009
5b468f54
AMS		 2010 if (gv && (io = GvIO(gv))
2011 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2012 {
4592e6ca 2013 PUSHMARK(SP);
5b468f54 2014 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2015 PUTBACK;
2016 ENTER;
864dbfa3 2017 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2018 LEAVE;
2019 SPAGAIN;
2020 RETURN;
2021 }
2022
146174a9
CB		 2023#if LSEEKSIZE > IVSIZE
2024 PUSHn( do_tell(gv) );
2025#else
a0d0e21e 2026 PUSHi( do_tell(gv) );
146174a9 2027#endif
a0d0e21e
LW		 2028 RETURN;
2029}
2030
2031PP(pp_seek)
2032{
cea2e8a9 2033 return pp_sysseek();
137443ea 2034}
2035
2036PP(pp_sysseek)
2037{
39644a26 2038 dSP;
a0d0e21e 2039 GV *gv;
5b468f54 2040 IO *io;
a0d0e21e 2041 int whence = POPi;
146174a9
CB		 2042#if LSEEKSIZE > IVSIZE
2043 Off_t offset = (Off_t)SvNVx(POPs);
2044#else
d9b3e12d 2045 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2046#endif
4592e6ca 2047 MAGIC *mg;
a0d0e21e 2048
3280af22 2049 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2050
5b468f54
AMS		 2051 if (gv && (io = GvIO(gv))
2052 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2053 {
4592e6ca 2054 PUSHMARK(SP);
5b468f54 2055 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2056#if LSEEKSIZE > IVSIZE
2057 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2058#else
b448e4fe 2059 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2060#endif
b448e4fe 2061 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2062 PUTBACK;
2063 ENTER;
864dbfa3 2064 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2065 LEAVE;
2066 SPAGAIN;
2067 RETURN;
2068 }
2069
533c011a 2070 if (PL_op->op_type == OP_SEEK)
8903cb82 2071 PUSHs(boolSV(do_seek(gv, offset, whence)));
2072 else {
b448e4fe
JH		 2073 Off_t sought = do_sysseek(gv, offset, whence);
2074 if (sought < 0)
146174a9
CB		 2075 PUSHs(&PL_sv_undef);
2076 else {
b448e4fe 2077 SV* sv = sought ?
146174a9 2078#if LSEEKSIZE > IVSIZE
b448e4fe 2079 newSVnv((NV)sought)
146174a9 2080#else
b448e4fe 2081 newSViv(sought)
146174a9
CB		 2082#endif
2083 : newSVpvn(zero_but_true, ZBTLEN);
2084 PUSHs(sv_2mortal(sv));
2085 }
8903cb82 2086 }
a0d0e21e
LW		 2087 RETURN;
2088}
2089
2090PP(pp_truncate)
2091{
39644a26 2092 dSP;
8c99d73e
GS		 2093 /* There seems to be no consensus on the length type of truncate()
2094 * and ftruncate(), both off_t and size_t have supporters. In
2095 * general one would think that when using large files, off_t is
2096 * at least as wide as size_t, so using an off_t should be okay. */
2097 /* XXX Configure probe for the length type of *truncate() needed XXX */
2098 Off_t len;
a0d0e21e 2099
25342a55 2100#if Off_t_size > IVSIZE
8c99d73e
GS		 2101 len = (Off_t)POPn;
2102#else
2103 len = (Off_t)POPi;
2104#endif
2105 /* Checking for length < 0 is problematic as the type might or
301e8125 2106 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2107 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2108 SETERRNO(0,0);
d05c1ba0 2109 {
d05c1ba0
JH		 2110 int result = 1;
2111 GV *tmpgv;
090bf15b
SR		 2112 IO *io;
2113
d05c1ba0 2114 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2115 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2116
090bf15b
SR		 2117 do_ftruncate_gv:
2118 if (!GvIO(tmpgv))
2119 result = 0;
d05c1ba0 2120 else {
090bf15b
SR		 2121 PerlIO *fp;
2122 io = GvIOp(tmpgv);
2123 do_ftruncate_io:
2124 TAINT_PROPER("truncate");
2125 if (!(fp = IoIFP(io))) {
2126 result = 0;
2127 }
2128 else {
2129 PerlIO_flush(fp);
cbdc8872 2130#ifdef HAS_TRUNCATE
090bf15b 2131 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2132#else
090bf15b 2133 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2134#endif
090bf15b
SR		 2135 result = 0;
2136 }
d05c1ba0 2137 }
cbdc8872 2138 }
d05c1ba0
JH		 2139 else {
2140 SV *sv = POPs;
2141 char *name;
7a5fd60d
NC		 2142 STRLEN n_a;
2143
d05c1ba0
JH		 2144 if (SvTYPE(sv) == SVt_PVGV) {
2145 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2146 goto do_ftruncate_gv;
d05c1ba0
JH		 2147 }
2148 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2149 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2150 goto do_ftruncate_gv;
2151 }
2152 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2153 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2154 goto do_ftruncate_io;
d05c1ba0 2155 }
1e422769 2156
d05c1ba0
JH		 2157 name = SvPV(sv, n_a);
2158 TAINT_PROPER("truncate");
cbdc8872 2159#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2160 if (truncate(name, len) < 0)
2161 result = 0;
cbdc8872 2162#else
d05c1ba0
JH		 2163 {
2164 int tmpfd;
2165
2166 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2167 result = 0;
d05c1ba0
JH		 2168 else {
2169 if (my_chsize(tmpfd, len) < 0)
2170 result = 0;
2171 PerlLIO_close(tmpfd);
2172 }
cbdc8872 2173 }
a0d0e21e 2174#endif
d05c1ba0 2175 }
a0d0e21e 2176
d05c1ba0
JH		 2177 if (result)
2178 RETPUSHYES;
2179 if (!errno)
93189314 2180 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2181 RETPUSHUNDEF;
2182 }
a0d0e21e
LW		 2183}
2184
2185PP(pp_fcntl)
2186{
cea2e8a9 2187 return pp_ioctl();
a0d0e21e
LW		 2188}
2189
2190PP(pp_ioctl)
2191{
39644a26 2192 dSP; dTARGET;
748a9306 2193 SV *argsv = POPs;
3bb7c1b4 2194 unsigned int func = POPu;
e1ec3a88 2195 const int optype = PL_op->op_type;
a0d0e21e 2196 char *s;
324aa91a 2197 IV retval;
a0d0e21e 2198 GV *gv = (GV*)POPs;
c289d2f7 2199 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2200
748a9306 2201 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2202 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2203 report_evil_fh(gv, io, PL_op->op_type);
93189314 2204 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2205 RETPUSHUNDEF;
2206 }
2207
748a9306 2208 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2209 STRLEN len;
324aa91a 2210 STRLEN need;
748a9306 2211 s = SvPV_force(argsv, len);
324aa91a
HF		 2212 need = IOCPARM_LEN(func);
2213 if (len < need) {
2214 s = Sv_Grow(argsv, need + 1);
2215 SvCUR_set(argsv, need);
a0d0e21e
LW		 2216 }
2217
748a9306 2218 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2219 }
2220 else {
748a9306 2221 retval = SvIV(argsv);
c529f79d 2222 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2223 }
2224
2225 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2226
2227 if (optype == OP_IOCTL)
2228#ifdef HAS_IOCTL
76e3520e 2229 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2230#else
cea2e8a9 2231 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2232#endif
2233 else
c214f4ad
WB		 2234#ifndef HAS_FCNTL
2235 DIE(aTHX_ "fcntl is not implemented");
2236#else
55497cff 2237#if defined(OS2) && defined(__EMX__)
760ac839 2238 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2239#else
760ac839 2240 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2241#endif
6652bd42 2242#endif
a0d0e21e 2243
6652bd42 2244#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2245 if (SvPOK(argsv)) {
2246 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2247 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2248 OP_NAME(PL_op));
748a9306
LW		 2249 s[SvCUR(argsv)] = 0; /* put our null back */
2250 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2251 }
2252
2253 if (retval == -1)
2254 RETPUSHUNDEF;
2255 if (retval != 0) {
2256 PUSHi(retval);
2257 }
2258 else {
8903cb82 2259 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2260 }
4808266b 2261#endif
c214f4ad 2262 RETURN;
a0d0e21e
LW		 2263}
2264
2265PP(pp_flock)
2266{
9cad6237 2267#ifdef FLOCK
39644a26 2268 dSP; dTARGET;
a0d0e21e
LW		 2269 I32 value;
2270 int argtype;
2271 GV *gv;
bc37a18f 2272 IO *io = NULL;
760ac839 2273 PerlIO *fp;
16d20bd9 2274
a0d0e21e 2275 argtype = POPi;
32da55ab 2276 if (MAXARG == 0)
3280af22 2277 gv = PL_last_in_gv;
a0d0e21e
LW		 2278 else
2279 gv = (GV*)POPs;
bc37a18f
RG		 2280 if (gv && (io = GvIO(gv)))
2281 fp = IoIFP(io);
2282 else {
a0d0e21e 2283 fp = Nullfp;
bc37a18f
RG		 2284 io = NULL;
2285 }
a0d0e21e 2286 if (fp) {
68dc0745 2287 (void)PerlIO_flush(fp);
76e3520e 2288 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2289 }
cb50131a 2290 else {
bc37a18f
RG		 2291 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2292 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2293 value = 0;
93189314 2294 SETERRNO(EBADF,RMS_IFI);
cb50131a 2295 }
a0d0e21e
LW		 2296 PUSHi(value);
2297 RETURN;
2298#else
cea2e8a9 2299 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2300#endif
2301}
2302
2303/* Sockets. */
2304
2305PP(pp_socket)
2306{
a0d0e21e 2307#ifdef HAS_SOCKET
9cad6237 2308 dSP;
a0d0e21e
LW		 2309 GV *gv;
2310 register IO *io;
2311 int protocol = POPi;
2312 int type = POPi;
2313 int domain = POPi;
2314 int fd;
2315
2316 gv = (GV*)POPs;
c289d2f7 2317 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2318
c289d2f7
JH		 2319 if (!gv || !io) {
2320 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2321 report_evil_fh(gv, io, PL_op->op_type);
2322 if (IoIFP(io))
2323 do_close(gv, FALSE);
93189314 2324 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2325 RETPUSHUNDEF;
2326 }
2327
57171420
BS		 2328 if (IoIFP(io))
2329 do_close(gv, FALSE);
2330
a0d0e21e 2331 TAINT_PROPER("socket");
6ad3d225 2332 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2333 if (fd < 0)
2334 RETPUSHUNDEF;
460c8493
IZ		 2335 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2336 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2337 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2338 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2339 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2340 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2341 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2342 RETPUSHUNDEF;
2343 }
8d2a6795
GS		 2344#if defined(HAS_FCNTL) && defined(F_SETFD)
2345 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2346#endif
a0d0e21e 2347
d5ff79b3
OF		 2348#ifdef EPOC
2349 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2350#endif
2351
a0d0e21e
LW		 2352 RETPUSHYES;
2353#else
cea2e8a9 2354 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2355#endif
2356}
2357
2358PP(pp_sockpair)
2359{
c95c94b1 2360#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2361 dSP;
a0d0e21e
LW		 2362 GV *gv1;
2363 GV *gv2;
2364 register IO *io1;
2365 register IO *io2;
2366 int protocol = POPi;
2367 int type = POPi;
2368 int domain = POPi;
2369 int fd[2];
2370
2371 gv2 = (GV*)POPs;
2372 gv1 = (GV*)POPs;
c289d2f7
JH		 2373 io1 = gv1 ? GvIOn(gv1) : NULL;
2374 io2 = gv2 ? GvIOn(gv2) : NULL;
2375 if (!gv1 || !gv2 || !io1 || !io2) {
2376 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2377 if (!gv1 || !io1)
2378 report_evil_fh(gv1, io1, PL_op->op_type);
2379 if (!gv2 || !io2)
2380 report_evil_fh(gv1, io2, PL_op->op_type);
2381 }
2382 if (IoIFP(io1))
2383 do_close(gv1, FALSE);
2384 if (IoIFP(io2))
2385 do_close(gv2, FALSE);
a0d0e21e 2386 RETPUSHUNDEF;
c289d2f7 2387 }
a0d0e21e 2388
dc0d0a5f
JH		 2389 if (IoIFP(io1))
2390 do_close(gv1, FALSE);
2391 if (IoIFP(io2))
2392 do_close(gv2, FALSE);
57171420 2393
a0d0e21e 2394 TAINT_PROPER("socketpair");
6ad3d225 2395 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2396 RETPUSHUNDEF;
460c8493
IZ		 2397 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2398 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2399 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2400 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2401 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2402 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2403 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2404 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2405 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2406 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2407 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2408 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2409 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2410 RETPUSHUNDEF;
2411 }
8d2a6795
GS		 2412#if defined(HAS_FCNTL) && defined(F_SETFD)
2413 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2414 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2415#endif
a0d0e21e
LW		 2416
2417 RETPUSHYES;
2418#else
cea2e8a9 2419 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2420#endif
2421}
2422
2423PP(pp_bind)
2424{
a0d0e21e 2425#ifdef HAS_SOCKET
9cad6237 2426 dSP;
eec2d3df 2427#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2428 extern void GETPRIVMODE();
2429 extern void GETUSERMODE();
eec2d3df 2430#endif
748a9306 2431 SV *addrsv = POPs;
a0d0e21e
LW		 2432 char *addr;
2433 GV *gv = (GV*)POPs;
2434 register IO *io = GvIOn(gv);
2435 STRLEN len;
eec2d3df
GS		 2436 int bind_ok = 0;
2437#ifdef MPE
2438 int mpeprivmode = 0;
2439#endif
a0d0e21e
LW		 2440
2441 if (!io || !IoIFP(io))
2442 goto nuts;
2443
748a9306 2444 addr = SvPV(addrsv, len);
a0d0e21e 2445 TAINT_PROPER("bind");
eec2d3df
GS		 2446#ifdef MPE /* Deal with MPE bind() peculiarities */
2447 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2448 /* The address *MUST* stupidly be zero. */
2449 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2450 /* PRIV mode is required to bind() to ports < 1024. */
2451 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2452 ((struct sockaddr_in *)addr)->sin_port > 0) {
2453 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2454 mpeprivmode = 1;
2455 }
2456 }
2457#endif /* MPE */
2458 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2459 (struct sockaddr *)addr, len) >= 0)
2460 bind_ok = 1;
2461
2462#ifdef MPE /* Switch back to USER mode */
2463 if (mpeprivmode)
2464 GETUSERMODE();
2465#endif /* MPE */
2466
2467 if (bind_ok)
a0d0e21e
LW		 2468 RETPUSHYES;
2469 else
2470 RETPUSHUNDEF;
2471
2472nuts:
599cee73 2473 if (ckWARN(WARN_CLOSED))
bc37a18f 2474 report_evil_fh(gv, io, PL_op->op_type);
93189314 2475 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2476 RETPUSHUNDEF;
2477#else
cea2e8a9 2478 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2479#endif
2480}
2481
2482PP(pp_connect)
2483{
a0d0e21e 2484#ifdef HAS_SOCKET
9cad6237 2485 dSP;
748a9306 2486 SV *addrsv = POPs;
a0d0e21e
LW		 2487 char *addr;
2488 GV *gv = (GV*)POPs;
2489 register IO *io = GvIOn(gv);
2490 STRLEN len;
2491
2492 if (!io || !IoIFP(io))
2493 goto nuts;
2494
748a9306 2495 addr = SvPV(addrsv, len);
a0d0e21e 2496 TAINT_PROPER("connect");
6ad3d225 2497 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2498 RETPUSHYES;
2499 else
2500 RETPUSHUNDEF;
2501
2502nuts:
599cee73 2503 if (ckWARN(WARN_CLOSED))
bc37a18f 2504 report_evil_fh(gv, io, PL_op->op_type);
93189314 2505 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2506 RETPUSHUNDEF;
2507#else
cea2e8a9 2508 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2509#endif
2510}
2511
2512PP(pp_listen)
2513{
a0d0e21e 2514#ifdef HAS_SOCKET
9cad6237 2515 dSP;
a0d0e21e
LW		 2516 int backlog = POPi;
2517 GV *gv = (GV*)POPs;
c289d2f7 2518 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2519
c289d2f7 2520 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2521 goto nuts;
2522
6ad3d225 2523 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2524 RETPUSHYES;
2525 else
2526 RETPUSHUNDEF;
2527
2528nuts:
599cee73 2529 if (ckWARN(WARN_CLOSED))
bc37a18f 2530 report_evil_fh(gv, io, PL_op->op_type);
93189314 2531 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2532 RETPUSHUNDEF;
2533#else
cea2e8a9 2534 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2535#endif
2536}
2537
2538PP(pp_accept)
2539{
a0d0e21e 2540#ifdef HAS_SOCKET
9cad6237 2541 dSP; dTARGET;
a0d0e21e
LW		 2542 GV *ngv;
2543 GV *ggv;
2544 register IO *nstio;
2545 register IO *gstio;
93d47a36
JH		 2546 char namebuf[MAXPATHLEN];
2547#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2548 Sock_size_t len = sizeof (struct sockaddr_in);
2549#else
2550 Sock_size_t len = sizeof namebuf;
2551#endif
a0d0e21e
LW		 2552 int fd;
2553
2554 ggv = (GV*)POPs;
2555 ngv = (GV*)POPs;
2556
2557 if (!ngv)
2558 goto badexit;
2559 if (!ggv)
2560 goto nuts;
2561
2562 gstio = GvIO(ggv);
2563 if (!gstio || !IoIFP(gstio))
2564 goto nuts;
2565
2566 nstio = GvIOn(ngv);
93d47a36 2567 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2568 if (fd < 0)
2569 goto badexit;
a70048fb
AB		 2570 if (IoIFP(nstio))
2571 do_close(ngv, FALSE);
460c8493
IZ		 2572 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2573 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2574 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2575 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2576 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2577 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2578 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2579 goto badexit;
2580 }
8d2a6795
GS		 2581#if defined(HAS_FCNTL) && defined(F_SETFD)
2582 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2583#endif
a0d0e21e 2584
ed79a026 2585#ifdef EPOC
93d47a36 2586 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2587 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2588#endif
381c1bae 2589#ifdef __SCO_VERSION__
93d47a36 2590 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2591#endif
ed79a026 2592
93d47a36 2593 PUSHp(namebuf, len);
a0d0e21e
LW		 2594 RETURN;
2595
2596nuts:
599cee73 2597 if (ckWARN(WARN_CLOSED))
bc37a18f 2598 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2599 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2600
2601badexit:
2602 RETPUSHUNDEF;
2603
2604#else
cea2e8a9 2605 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2606#endif
2607}
2608
2609PP(pp_shutdown)
2610{
a0d0e21e 2611#ifdef HAS_SOCKET
9cad6237 2612 dSP; dTARGET;
a0d0e21e
LW		 2613 int how = POPi;
2614 GV *gv = (GV*)POPs;
2615 register IO *io = GvIOn(gv);
2616
2617 if (!io || !IoIFP(io))
2618 goto nuts;
2619
6ad3d225 2620 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2621 RETURN;
2622
2623nuts:
599cee73 2624 if (ckWARN(WARN_CLOSED))
bc37a18f 2625 report_evil_fh(gv, io, PL_op->op_type);
93189314 2626 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2627 RETPUSHUNDEF;
2628#else
cea2e8a9 2629 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2630#endif
2631}
2632
2633PP(pp_gsockopt)
2634{
2635#ifdef HAS_SOCKET
cea2e8a9 2636 return pp_ssockopt();
a0d0e21e 2637#else
cea2e8a9 2638 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2639#endif
2640}
2641
2642PP(pp_ssockopt)
2643{
a0d0e21e 2644#ifdef HAS_SOCKET
9cad6237 2645 dSP;
533c011a 2646 int optype = PL_op->op_type;
a0d0e21e
LW		 2647 SV *sv;
2648 int fd;
2649 unsigned int optname;
2650 unsigned int lvl;
2651 GV *gv;
2652 register IO *io;
1e422769 2653 Sock_size_t len;
a0d0e21e
LW		 2654
2655 if (optype == OP_GSOCKOPT)
2656 sv = sv_2mortal(NEWSV(22, 257));
2657 else
2658 sv = POPs;
2659 optname = (unsigned int) POPi;
2660 lvl = (unsigned int) POPi;
2661
2662 gv = (GV*)POPs;
2663 io = GvIOn(gv);
2664 if (!io || !IoIFP(io))
2665 goto nuts;
2666
760ac839 2667 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2668 switch (optype) {
2669 case OP_GSOCKOPT:
748a9306 2670 SvGROW(sv, 257);
a0d0e21e 2671 (void)SvPOK_only(sv);
748a9306
LW		 2672 SvCUR_set(sv,256);
2673 *SvEND(sv) ='\0';
1e422769 2674 len = SvCUR(sv);
6ad3d225 2675 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2676 goto nuts2;
1e422769 2677 SvCUR_set(sv, len);
748a9306 2678 *SvEND(sv) ='\0';
a0d0e21e
LW		 2679 PUSHs(sv);
2680 break;
2681 case OP_SSOCKOPT: {
1e422769 2682 char *buf;
2683 int aint;
2684 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2685 STRLEN l;
2686 buf = SvPV(sv, l);
2687 len = l;
1e422769 2688 }
56ee1660 2689 else {
a0d0e21e
LW		 2690 aint = (int)SvIV(sv);
2691 buf = (char*)&aint;
2692 len = sizeof(int);
2693 }
6ad3d225 2694 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2695 goto nuts2;
3280af22 2696 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2697 }
2698 break;
2699 }
2700 RETURN;
2701
2702nuts:
599cee73 2703 if (ckWARN(WARN_CLOSED))
bc37a18f 2704 report_evil_fh(gv, io, optype);
93189314 2705 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2706nuts2:
2707 RETPUSHUNDEF;
2708
2709#else
cea2e8a9 2710 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2711#endif
2712}
2713
2714PP(pp_getsockname)
2715{
2716#ifdef HAS_SOCKET
cea2e8a9 2717 return pp_getpeername();
a0d0e21e 2718#else
cea2e8a9 2719 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2720#endif
2721}
2722
2723PP(pp_getpeername)
2724{
a0d0e21e 2725#ifdef HAS_SOCKET
9cad6237 2726 dSP;
533c011a 2727 int optype = PL_op->op_type;
a0d0e21e
LW		 2728 SV *sv;
2729 int fd;
2730 GV *gv = (GV*)POPs;
2731 register IO *io = GvIOn(gv);
1e422769 2732 Sock_size_t len;
a0d0e21e
LW		 2733
2734 if (!io || !IoIFP(io))
2735 goto nuts;
2736
2737 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2738 (void)SvPOK_only(sv);
1e422769 2739 len = 256;
2740 SvCUR_set(sv, len);
748a9306 2741 *SvEND(sv) ='\0';
760ac839 2742 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2743 switch (optype) {
2744 case OP_GETSOCKNAME:
6ad3d225 2745 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2746 goto nuts2;
2747 break;
2748 case OP_GETPEERNAME:
6ad3d225 2749 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2750 goto nuts2;
490ab354
JH		 2751#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2752 {
2753 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";
2754 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2755 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2756 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2757 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2758 goto nuts2;
490ab354
JH		 2759 }
2760 }
2761#endif
a0d0e21e
LW		 2762 break;
2763 }
13826f2c
CS		 2764#ifdef BOGUS_GETNAME_RETURN
2765 /* Interactive Unix, getpeername() and getsockname()
2766 does not return valid namelen */
1e422769 2767 if (len == BOGUS_GETNAME_RETURN)
2768 len = sizeof(struct sockaddr);
13826f2c 2769#endif
1e422769 2770 SvCUR_set(sv, len);
748a9306 2771 *SvEND(sv) ='\0';
a0d0e21e
LW		 2772 PUSHs(sv);
2773 RETURN;
2774
2775nuts:
599cee73 2776 if (ckWARN(WARN_CLOSED))
bc37a18f 2777 report_evil_fh(gv, io, optype);
93189314 2778 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2779nuts2:
2780 RETPUSHUNDEF;
2781
2782#else
cea2e8a9 2783 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2784#endif
2785}
2786
2787/* Stat calls. */
2788
2789PP(pp_lstat)
2790{
cea2e8a9 2791 return pp_stat();
a0d0e21e
LW		 2792}
2793
2794PP(pp_stat)
2795{
39644a26 2796 dSP;
2dd78f96 2797 GV *gv;
54310121 2798 I32 gimme;
a0d0e21e 2799 I32 max = 13;
2d8e6c8d 2800 STRLEN n_a;
a0d0e21e 2801
533c011a 2802 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2803 gv = cGVOP_gv;
8a4e5b40 2804 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2805 if (gv != PL_defgv) {
2806 if (ckWARN(WARN_IO))
9014280d 2807 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2808 "lstat() on filehandle %s", GvENAME(gv));
2809 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2810 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2811 }
2812
748a9306 2813 do_fstat:
2dd78f96 2814 if (gv != PL_defgv) {
3280af22 2815 PL_laststype = OP_STAT;
2dd78f96 2816 PL_statgv = gv;
3280af22 2817 sv_setpv(PL_statname, "");
2dd78f96
JH		 2818 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2819 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2820 }
9ddeeac9 2821 if (PL_laststatval < 0) {
2dd78f96
JH		 2822 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2823 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2824 max = 0;
9ddeeac9 2825 }
a0d0e21e
LW		 2826 }
2827 else {
748a9306
LW		 2828 SV* sv = POPs;
2829 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2830 gv = (GV*)sv;
748a9306
LW		 2831 goto do_fstat;
2832 }
2833 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2834 gv = (GV*)SvRV(sv);
5d3e98de 2835 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2836 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2837 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2838 goto do_fstat;
2839 }
2d8e6c8d 2840 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2841 PL_statgv = Nullgv;
533c011a
NIS		 2842 PL_laststype = PL_op->op_type;
2843 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2844 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2845 else
2d8e6c8d 2846 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2847 if (PL_laststatval < 0) {
2d8e6c8d 2848 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2849 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2850 max = 0;
2851 }
2852 }
2853
54310121 2854 gimme = GIMME_V;
2855 if (gimme != G_ARRAY) {
2856 if (gimme != G_VOID)
2857 XPUSHs(boolSV(max));
2858 RETURN;
a0d0e21e
LW		 2859 }
2860 if (max) {
36477c24 2861 EXTEND(SP, max);
2862 EXTEND_MORTAL(max);
1ff81528
PL		 2863 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2865 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2867#if Uid_t_size > IVSIZE
2868 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2869#else
23dcd6c8 2870# if Uid_t_sign <= 0
1ff81528 2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2872# else
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2874# endif
146174a9 2875#endif
301e8125 2876#if Gid_t_size > IVSIZE
146174a9
CB		 2877 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2878#else
23dcd6c8 2879# if Gid_t_sign <= 0
1ff81528 2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2881# else
2882 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2883# endif
146174a9 2884#endif
cbdc8872 2885#ifdef USE_STAT_RDEV
1ff81528 2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2887#else
79cb57f6 2888 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2889#endif
146174a9 2890#if Off_t_size > IVSIZE
4a9d6100 2891 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2892#else
1ff81528 2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2894#endif
cbdc8872 2895#ifdef BIG_TIME
172ae379
JH		 2896 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2899#else
1ff81528
PL		 2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2903#endif
a0d0e21e 2904#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2905 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2907#else
79cb57f6
GS		 2908 PUSHs(sv_2mortal(newSVpvn("", 0)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2910#endif
2911 }
2912 RETURN;
2913}
2914
fbb0b3b3
RGS		 2915/* This macro is used by the stacked filetest operators :
2916 * if the previous filetest failed, short-circuit and pass its value.
2917 * Else, discard it from the stack and continue. --rgs
2918 */
2919#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2920 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2921 else { (void)POPs; PUTBACK; } \
2922 }
2923
a0d0e21e
LW		 2924PP(pp_ftrread)
2925{
9cad6237 2926 I32 result;
2a3ff820 2927 dSP;
fbb0b3b3 2928 STACKED_FTEST_CHECK;
5ff3f7a4 2929#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2930 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2931 STRLEN n_a;
43b06338 2932 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2933 if (result == 0)
2934 RETPUSHYES;
2935 if (result < 0)
2936 RETPUSHUNDEF;
2937 RETPUSHNO;
22865c03
GS		 2938 }
2939 else
cea2e8a9 2940 result = my_stat();
5ff3f7a4 2941#else
cea2e8a9 2942 result = my_stat();
5ff3f7a4 2943#endif
22865c03 2944 SPAGAIN;
a0d0e21e
LW		 2945 if (result < 0)
2946 RETPUSHUNDEF;
3280af22 2947 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2948 RETPUSHYES;
2949 RETPUSHNO;
2950}
2951
2952PP(pp_ftrwrite)
2953{
9cad6237 2954 I32 result;
2a3ff820 2955 dSP;
fbb0b3b3 2956 STACKED_FTEST_CHECK;
5ff3f7a4 2957#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2958 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2959 STRLEN n_a;
43b06338 2960 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2961 if (result == 0)
2962 RETPUSHYES;
2963 if (result < 0)
2964 RETPUSHUNDEF;
2965 RETPUSHNO;
22865c03
GS		 2966 }
2967 else
cea2e8a9 2968 result = my_stat();
5ff3f7a4 2969#else
cea2e8a9 2970 result = my_stat();
5ff3f7a4 2971#endif
22865c03 2972 SPAGAIN;
a0d0e21e
LW		 2973 if (result < 0)
2974 RETPUSHUNDEF;
3280af22 2975 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2976 RETPUSHYES;
2977 RETPUSHNO;
2978}
2979
2980PP(pp_ftrexec)
2981{
9cad6237 2982 I32 result;
2a3ff820 2983 dSP;
fbb0b3b3 2984 STACKED_FTEST_CHECK;
5ff3f7a4 2985#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2986 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2987 STRLEN n_a;
43b06338 2988 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2989 if (result == 0)
2990 RETPUSHYES;
2991 if (result < 0)
2992 RETPUSHUNDEF;
2993 RETPUSHNO;
22865c03
GS		 2994 }
2995 else
cea2e8a9 2996 result = my_stat();
5ff3f7a4 2997#else
cea2e8a9 2998 result = my_stat();
5ff3f7a4 2999#endif
22865c03 3000 SPAGAIN;
a0d0e21e
LW		 3001 if (result < 0)
3002 RETPUSHUNDEF;
3280af22 3003 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3004 RETPUSHYES;
3005 RETPUSHNO;
3006}
3007
3008PP(pp_fteread)
3009{
9cad6237 3010 I32 result;
2a3ff820 3011 dSP;
fbb0b3b3 3012 STACKED_FTEST_CHECK;
5ff3f7a4 3013#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3014 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3015 STRLEN n_a;
43b06338 3016 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3017 if (result == 0)
3018 RETPUSHYES;
3019 if (result < 0)
3020 RETPUSHUNDEF;
3021 RETPUSHNO;
22865c03
GS		 3022 }
3023 else
cea2e8a9 3024 result = my_stat();
5ff3f7a4 3025#else
cea2e8a9 3026 result = my_stat();
5ff3f7a4 3027#endif
22865c03 3028 SPAGAIN;
a0d0e21e
LW		 3029 if (result < 0)
3030 RETPUSHUNDEF;
3280af22 3031 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3032 RETPUSHYES;
3033 RETPUSHNO;
3034}
3035
3036PP(pp_ftewrite)
3037{
9cad6237 3038 I32 result;
2a3ff820 3039 dSP;
fbb0b3b3 3040 STACKED_FTEST_CHECK;
5ff3f7a4 3041#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3042 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3043 STRLEN n_a;
43b06338 3044 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3045 if (result == 0)
3046 RETPUSHYES;
3047 if (result < 0)
3048 RETPUSHUNDEF;
3049 RETPUSHNO;
22865c03
GS		 3050 }
3051 else
cea2e8a9 3052 result = my_stat();
5ff3f7a4 3053#else
cea2e8a9 3054 result = my_stat();
5ff3f7a4 3055#endif
22865c03 3056 SPAGAIN;
a0d0e21e
LW		 3057 if (result < 0)
3058 RETPUSHUNDEF;
3280af22 3059 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3060 RETPUSHYES;
3061 RETPUSHNO;
3062}
3063
3064PP(pp_fteexec)
3065{
9cad6237 3066 I32 result;
2a3ff820 3067 dSP;
fbb0b3b3 3068 STACKED_FTEST_CHECK;
5ff3f7a4 3069#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3070 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3071 STRLEN n_a;
43b06338 3072 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3073 if (result == 0)
3074 RETPUSHYES;
3075 if (result < 0)
3076 RETPUSHUNDEF;
3077 RETPUSHNO;
22865c03
GS		 3078 }
3079 else
cea2e8a9 3080 result = my_stat();
5ff3f7a4 3081#else
cea2e8a9 3082 result = my_stat();
5ff3f7a4 3083#endif
22865c03 3084 SPAGAIN;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
3280af22 3087 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3088 RETPUSHYES;
3089 RETPUSHNO;
3090}
3091
3092PP(pp_ftis)
3093{
fbb0b3b3 3094 I32 result;
2a3ff820 3095 dSP;
fbb0b3b3
RGS		 3096 STACKED_FTEST_CHECK;
3097 result = my_stat();
3098 SPAGAIN;
a0d0e21e
LW		 3099 if (result < 0)
3100 RETPUSHUNDEF;
3101 RETPUSHYES;
3102}
3103
3104PP(pp_fteowned)
3105{
cea2e8a9 3106 return pp_ftrowned();
a0d0e21e
LW		 3107}
3108
3109PP(pp_ftrowned)
3110{
fbb0b3b3 3111 I32 result;
2a3ff820 3112 dSP;
fbb0b3b3
RGS		 3113 STACKED_FTEST_CHECK;
3114 result = my_stat();
3115 SPAGAIN;
a0d0e21e
LW		 3116 if (result < 0)
3117 RETPUSHUNDEF;
146174a9
CB		 3118 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3119 PL_euid : PL_uid) )
a0d0e21e
LW		 3120 RETPUSHYES;
3121 RETPUSHNO;
3122}
3123
3124PP(pp_ftzero)
3125{
fbb0b3b3 3126 I32 result;
2a3ff820 3127 dSP;
fbb0b3b3
RGS		 3128 STACKED_FTEST_CHECK;
3129 result = my_stat();
3130 SPAGAIN;
a0d0e21e
LW		 3131 if (result < 0)
3132 RETPUSHUNDEF;
146174a9 3133 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3134 RETPUSHYES;
3135 RETPUSHNO;
3136}
3137
3138PP(pp_ftsize)
3139{
fbb0b3b3 3140 I32 result;
2a3ff820 3141 dSP; dTARGET;
fbb0b3b3
RGS		 3142 STACKED_FTEST_CHECK;
3143 result = my_stat();
3144 SPAGAIN;
a0d0e21e
LW		 3145 if (result < 0)
3146 RETPUSHUNDEF;
146174a9
CB		 3147#if Off_t_size > IVSIZE
3148 PUSHn(PL_statcache.st_size);
3149#else
3280af22 3150 PUSHi(PL_statcache.st_size);
146174a9 3151#endif
a0d0e21e
LW		 3152 RETURN;
3153}
3154
3155PP(pp_ftmtime)
3156{
fbb0b3b3 3157 I32 result;
2a3ff820 3158 dSP; dTARGET;
fbb0b3b3
RGS		 3159 STACKED_FTEST_CHECK;
3160 result = my_stat();
3161 SPAGAIN;
a0d0e21e
LW		 3162 if (result < 0)
3163 RETPUSHUNDEF;
a80d47c2 3164 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3165 RETURN;
3166}
3167
3168PP(pp_ftatime)
3169{
fbb0b3b3 3170 I32 result;
2a3ff820 3171 dSP; dTARGET;
fbb0b3b3
RGS		 3172 STACKED_FTEST_CHECK;
3173 result = my_stat();
3174 SPAGAIN;
a0d0e21e
LW		 3175 if (result < 0)
3176 RETPUSHUNDEF;
a80d47c2 3177 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3178 RETURN;
3179}
3180
3181PP(pp_ftctime)
3182{
fbb0b3b3 3183 I32 result;
2a3ff820 3184 dSP; dTARGET;
fbb0b3b3
RGS		 3185 STACKED_FTEST_CHECK;
3186 result = my_stat();
3187 SPAGAIN;
a0d0e21e
LW		 3188 if (result < 0)
3189 RETPUSHUNDEF;
a80d47c2 3190 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3191 RETURN;
3192}
3193
3194PP(pp_ftsock)
3195{
fbb0b3b3 3196 I32 result;
2a3ff820 3197 dSP;
fbb0b3b3
RGS		 3198 STACKED_FTEST_CHECK;
3199 result = my_stat();
3200 SPAGAIN;
a0d0e21e
LW		 3201 if (result < 0)
3202 RETPUSHUNDEF;
3280af22 3203 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3204 RETPUSHYES;
3205 RETPUSHNO;
3206}
3207
3208PP(pp_ftchr)
3209{
fbb0b3b3 3210 I32 result;
2a3ff820 3211 dSP;
fbb0b3b3
RGS		 3212 STACKED_FTEST_CHECK;
3213 result = my_stat();
3214 SPAGAIN;
a0d0e21e
LW		 3215 if (result < 0)
3216 RETPUSHUNDEF;
3280af22 3217 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3218 RETPUSHYES;
3219 RETPUSHNO;
3220}
3221
3222PP(pp_ftblk)
3223{
fbb0b3b3 3224 I32 result;
2a3ff820 3225 dSP;
fbb0b3b3
RGS		 3226 STACKED_FTEST_CHECK;
3227 result = my_stat();
3228 SPAGAIN;
a0d0e21e
LW		 3229 if (result < 0)
3230 RETPUSHUNDEF;
3280af22 3231 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3232 RETPUSHYES;
3233 RETPUSHNO;
3234}
3235
3236PP(pp_ftfile)
3237{
fbb0b3b3 3238 I32 result;
2a3ff820 3239 dSP;
fbb0b3b3
RGS		 3240 STACKED_FTEST_CHECK;
3241 result = my_stat();
3242 SPAGAIN;
a0d0e21e
LW		 3243 if (result < 0)
3244 RETPUSHUNDEF;
3280af22 3245 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3246 RETPUSHYES;
3247 RETPUSHNO;
3248}
3249
3250PP(pp_ftdir)
3251{
fbb0b3b3 3252 I32 result;
2a3ff820 3253 dSP;
fbb0b3b3
RGS		 3254 STACKED_FTEST_CHECK;
3255 result = my_stat();
3256 SPAGAIN;
a0d0e21e
LW		 3257 if (result < 0)
3258 RETPUSHUNDEF;
3280af22 3259 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3260 RETPUSHYES;
3261 RETPUSHNO;
3262}
3263
3264PP(pp_ftpipe)
3265{
fbb0b3b3 3266 I32 result;
2a3ff820 3267 dSP;
fbb0b3b3
RGS		 3268 STACKED_FTEST_CHECK;
3269 result = my_stat();
3270 SPAGAIN;
a0d0e21e
LW		 3271 if (result < 0)
3272 RETPUSHUNDEF;
3280af22 3273 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3274 RETPUSHYES;
3275 RETPUSHNO;
3276}
3277
3278PP(pp_ftlink)
3279{
9cad6237 3280 I32 result = my_lstat();
2a3ff820 3281 dSP;
a0d0e21e
LW		 3282 if (result < 0)
3283 RETPUSHUNDEF;
3280af22 3284 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3285 RETPUSHYES;
3286 RETPUSHNO;
3287}
3288
3289PP(pp_ftsuid)
3290{
39644a26 3291 dSP;
a0d0e21e 3292#ifdef S_ISUID
fbb0b3b3
RGS		 3293 I32 result;
3294 STACKED_FTEST_CHECK;
3295 result = my_stat();
a0d0e21e
LW		 3296 SPAGAIN;
3297 if (result < 0)
3298 RETPUSHUNDEF;
3280af22 3299 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3300 RETPUSHYES;
3301#endif
3302 RETPUSHNO;
3303}
3304
3305PP(pp_ftsgid)
3306{
39644a26 3307 dSP;
a0d0e21e 3308#ifdef S_ISGID
fbb0b3b3
RGS		 3309 I32 result;
3310 STACKED_FTEST_CHECK;
3311 result = my_stat();
a0d0e21e
LW		 3312 SPAGAIN;
3313 if (result < 0)
3314 RETPUSHUNDEF;
3280af22 3315 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3316 RETPUSHYES;
3317#endif
3318 RETPUSHNO;
3319}
3320
3321PP(pp_ftsvtx)
3322{
39644a26 3323 dSP;
a0d0e21e 3324#ifdef S_ISVTX
fbb0b3b3
RGS		 3325 I32 result;
3326 STACKED_FTEST_CHECK;
3327 result = my_stat();
a0d0e21e
LW		 3328 SPAGAIN;
3329 if (result < 0)
3330 RETPUSHUNDEF;
3280af22 3331 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3332 RETPUSHYES;
3333#endif
3334 RETPUSHNO;
3335}
3336
3337PP(pp_fttty)
3338{
39644a26 3339 dSP;
a0d0e21e
LW		 3340 int fd;
3341 GV *gv;
7a5fd60d 3342 SV *tmpsv = Nullsv;
fb73857a 3343
fbb0b3b3
RGS		 3344 STACKED_FTEST_CHECK;
3345
533c011a 3346 if (PL_op->op_flags & OPf_REF)
146174a9 3347 gv = cGVOP_gv;
fb73857a 3348 else if (isGV(TOPs))
3349 gv = (GV*)POPs;
3350 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3351 gv = (GV*)SvRV(POPs);
a0d0e21e 3352 else
7a5fd60d 3353 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3354
a0d0e21e 3355 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3356 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d
NC		 3357 else if (tmpsv && SvOK(tmpsv)) {
3358 STRLEN n_a;
3359 char *tmps = SvPV(tmpsv, n_a);
3360 if (isDIGIT(*tmps))
3361 fd = atoi(tmps);
3362 else
3363 RETPUSHUNDEF;
3364 }
a0d0e21e
LW		 3365 else
3366 RETPUSHUNDEF;
6ad3d225 3367 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3368 RETPUSHYES;
3369 RETPUSHNO;
3370}
3371
16d20bd9
AD		 3372#if defined(atarist) /* this will work with atariST. Configure will
3373 make guesses for other systems. */
3374# define FILE_base(f) ((f)->_base)
3375# define FILE_ptr(f) ((f)->_ptr)
3376# define FILE_cnt(f) ((f)->_cnt)
3377# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3378#endif
3379
3380PP(pp_fttext)
3381{
39644a26 3382 dSP;
a0d0e21e
LW		 3383 I32 i;
3384 I32 len;
3385 I32 odd = 0;
3386 STDCHAR tbuf[512];
3387 register STDCHAR *s;
3388 register IO *io;
5f05dabc 3389 register SV *sv;
3390 GV *gv;
2d8e6c8d 3391 STRLEN n_a;
146174a9 3392 PerlIO *fp;
a0d0e21e 3393
fbb0b3b3
RGS		 3394 STACKED_FTEST_CHECK;
3395
533c011a 3396 if (PL_op->op_flags & OPf_REF)
146174a9 3397 gv = cGVOP_gv;
5f05dabc 3398 else if (isGV(TOPs))
3399 gv = (GV*)POPs;
3400 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3401 gv = (GV*)SvRV(POPs);
3402 else
3403 gv = Nullgv;
3404
3405 if (gv) {
a0d0e21e 3406 EXTEND(SP, 1);
3280af22
NIS		 3407 if (gv == PL_defgv) {
3408 if (PL_statgv)
3409 io = GvIO(PL_statgv);
a0d0e21e 3410 else {
3280af22 3411 sv = PL_statname;
a0d0e21e
LW		 3412 goto really_filename;
3413 }
3414 }
3415 else {
3280af22
NIS		 3416 PL_statgv = gv;
3417 PL_laststatval = -1;
3418 sv_setpv(PL_statname, "");
3419 io = GvIO(PL_statgv);
a0d0e21e
LW		 3420 }
3421 if (io && IoIFP(io)) {
5f05dabc 3422 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3423 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3424 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3425 if (PL_laststatval < 0)
5f05dabc 3426 RETPUSHUNDEF;
9cbac4c7 3427 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3428 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3429 RETPUSHNO;
3430 else
3431 RETPUSHYES;
9cbac4c7 3432 }
a20bf0c3 3433 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3434 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3435 if (i != EOF)
760ac839 3436 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3437 }
a20bf0c3 3438 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3439 RETPUSHYES;
a20bf0c3
JH		 3440 len = PerlIO_get_bufsiz(IoIFP(io));
3441 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3442 /* sfio can have large buffers - limit to 512 */
3443 if (len > 512)
3444 len = 512;
a0d0e21e
LW		 3445 }
3446 else {
2dd78f96 3447 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3448 gv = cGVOP_gv;
2dd78f96 3449 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3450 }
93189314 3451 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3452 RETPUSHUNDEF;
3453 }
3454 }
3455 else {
3456 sv = POPs;
5f05dabc 3457 really_filename:
3280af22 3458 PL_statgv = Nullgv;
5c9aa243 3459 PL_laststype = OP_STAT;
2d8e6c8d 3460 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3461 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3462 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3463 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3464 RETPUSHUNDEF;
3465 }
146174a9
CB		 3466 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3467 if (PL_laststatval < 0) {
3468 (void)PerlIO_close(fp);
5f05dabc 3469 RETPUSHUNDEF;
146174a9 3470 }
60382766 3471 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3472 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3473 (void)PerlIO_close(fp);
a0d0e21e 3474 if (len <= 0) {
533c011a 3475 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3476 RETPUSHNO; /* special case NFS directories */
3477 RETPUSHYES; /* null file is anything */
3478 }
3479 s = tbuf;
3480 }
3481
3482 /* now scan s to look for textiness */
4633a7c4 3483 /* XXX ASCII dependent code */
a0d0e21e 3484
146174a9
CB		 3485#if defined(DOSISH) || defined(USEMYBINMODE)
3486 /* ignore trailing ^Z on short files */
3487 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3488 --len;
3489#endif
3490
a0d0e21e
LW		 3491 for (i = 0; i < len; i++, s++) {
3492 if (!*s) { /* null never allowed in text */
3493 odd += len;
3494 break;
3495 }
9d116dd7 3496#ifdef EBCDIC
301e8125 3497 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3498 odd++;
3499#else
146174a9
CB		 3500 else if (*s & 128) {
3501#ifdef USE_LOCALE
2de3dbcc 3502 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3503 continue;
3504#endif
3505 /* utf8 characters don't count as odd */
fd400ab9 3506 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3507 int ulen = UTF8SKIP(s);
3508 if (ulen < len - i) {
3509 int j;
3510 for (j = 1; j < ulen; j++) {
fd400ab9 3511 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3512 goto not_utf8;
3513 }
3514 --ulen; /* loop does extra increment */
3515 s += ulen;
3516 i += ulen;
3517 continue;
3518 }
3519 }
3520 not_utf8:
3521 odd++;
146174a9 3522 }
a0d0e21e
LW		 3523 else if (*s < 32 &&
3524 *s != '\n' && *s != '\r' && *s != '\b' &&
3525 *s != '\t' && *s != '\f' && *s != 27)
3526 odd++;
9d116dd7 3527#endif
a0d0e21e
LW		 3528 }
3529
533c011a 3530 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3531 RETPUSHNO;
3532 else
3533 RETPUSHYES;
3534}
3535
3536PP(pp_ftbinary)
3537{
cea2e8a9 3538 return pp_fttext();
a0d0e21e
LW		 3539}
3540
3541/* File calls. */
3542
3543PP(pp_chdir)
3544{
39644a26 3545 dSP; dTARGET;
a0d0e21e
LW		 3546 char *tmps;
3547 SV **svp;
2d8e6c8d 3548 STRLEN n_a;
a0d0e21e 3549
35ae6b54
MS		 3550 if( MAXARG == 1 )
3551 tmps = POPpx;
3552 else
3553 tmps = 0;
3554
3555 if( !tmps || !*tmps ) {
3556 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3557 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3558#ifdef VMS
35ae6b54 3559 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3560#endif
35ae6b54
MS		 3561 )
3562 {
3563 if( MAXARG == 1 )
9014280d 3564 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3565 tmps = SvPV(*svp, n_a);
3566 }
72f496dc 3567 else {
389ec635 3568 PUSHi(0);
b7ab37f8 3569 TAINT_PROPER("chdir");
389ec635
MS		 3570 RETURN;
3571 }
8ea155d1 3572 }
8ea155d1 3573
a0d0e21e 3574 TAINT_PROPER("chdir");
6ad3d225 3575 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3576#ifdef VMS
3577 /* Clear the DEFAULT element of ENV so we'll get the new value
3578 * in the future. */
6b88bc9c 3579 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3580#endif
a0d0e21e
LW		 3581 RETURN;
3582}
3583
3584PP(pp_chown)
3585{
a0d0e21e 3586#ifdef HAS_CHOWN
76ffd3b9
IZ		 3587 dSP; dMARK; dTARGET;
3588 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3589
a0d0e21e
LW		 3590 SP = MARK;
3591 PUSHi(value);
3592 RETURN;
3593#else
0322a713 3594 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3595#endif
3596}
3597
3598PP(pp_chroot)
3599{
a0d0e21e 3600#ifdef HAS_CHROOT
76ffd3b9 3601 dSP; dTARGET;
2d8e6c8d 3602 STRLEN n_a;
d05c1ba0 3603 char *tmps = POPpx;
a0d0e21e
LW		 3604 TAINT_PROPER("chroot");
3605 PUSHi( chroot(tmps) >= 0 );
3606 RETURN;
3607#else
cea2e8a9 3608 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3609#endif
3610}
3611
3612PP(pp_unlink)
3613{
39644a26 3614 dSP; dMARK; dTARGET;
a0d0e21e 3615 I32 value;
533c011a 3616 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3617 SP = MARK;
3618 PUSHi(value);
3619 RETURN;
3620}
3621
3622PP(pp_chmod)
3623{
39644a26 3624 dSP; dMARK; dTARGET;
a0d0e21e 3625 I32 value;
533c011a 3626 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3627 SP = MARK;
3628 PUSHi(value);
3629 RETURN;
3630}
3631
3632PP(pp_utime)
3633{
39644a26 3634 dSP; dMARK; dTARGET;
a0d0e21e 3635 I32 value;
533c011a 3636 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3637 SP = MARK;
3638 PUSHi(value);
3639 RETURN;
3640}
3641
3642PP(pp_rename)
3643{
39644a26 3644 dSP; dTARGET;
a0d0e21e 3645 int anum;
2d8e6c8d 3646 STRLEN n_a;
a0d0e21e 3647
2d8e6c8d
GS		 3648 char *tmps2 = POPpx;
3649 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3650 TAINT_PROPER("rename");
3651#ifdef HAS_RENAME
baed7233 3652 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3653#else
6b88bc9c 3654 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3655 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3656 anum = 1;
3657 else {
3654eb6c 3658 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3659 (void)UNLINK(tmps2);
3660 if (!(anum = link(tmps, tmps2)))
3661 anum = UNLINK(tmps);
3662 }
a0d0e21e
LW		 3663 }
3664#endif
3665 SETi( anum >= 0 );
3666 RETURN;
3667}
3668
3669PP(pp_link)
3670{
a0d0e21e 3671#ifdef HAS_LINK
370f6000 3672 dSP; dTARGET;
2d8e6c8d
GS		 3673 STRLEN n_a;
3674 char *tmps2 = POPpx;
3675 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3676 TAINT_PROPER("link");
146174a9 3677 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3678 RETURN;
a0d0e21e 3679#else
0322a713 3680 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3681#endif
a0d0e21e
LW		 3682}
3683
3684PP(pp_symlink)
3685{
a0d0e21e 3686#ifdef HAS_SYMLINK
9cad6237 3687 dSP; dTARGET;
2d8e6c8d
GS		 3688 STRLEN n_a;
3689 char *tmps2 = POPpx;
3690 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3691 TAINT_PROPER("symlink");
3692 SETi( symlink(tmps, tmps2) >= 0 );
3693 RETURN;
3694#else
cea2e8a9 3695 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3696#endif
3697}
3698
3699PP(pp_readlink)
3700{
76ffd3b9 3701 dSP;
a0d0e21e 3702#ifdef HAS_SYMLINK
76ffd3b9 3703 dTARGET;
a0d0e21e 3704 char *tmps;
46fc3d4c 3705 char buf[MAXPATHLEN];
a0d0e21e 3706 int len;
2d8e6c8d 3707 STRLEN n_a;
46fc3d4c 3708
fb73857a 3709#ifndef INCOMPLETE_TAINTS
3710 TAINT;
3711#endif
2d8e6c8d 3712 tmps = POPpx;
97dcea33 3713 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3714 EXTEND(SP, 1);
3715 if (len < 0)
3716 RETPUSHUNDEF;
3717 PUSHp(buf, len);
3718 RETURN;
3719#else
3720 EXTEND(SP, 1);
3721 RETSETUNDEF; /* just pretend it's a normal file */
3722#endif
3723}
3724
3725#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3726STATIC int
cea2e8a9 3727S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3728{
1e422769 3729 char *save_filename = filename;
3730 char *cmdline;
3731 char *s;
760ac839 3732 PerlIO *myfp;
1e422769 3733 int anum = 1;
a0d0e21e 3734
1e422769 3735 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3736 strcpy(cmdline, cmd);
3737 strcat(cmdline, " ");
3738 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3739 *s++ = '\\';
3740 *s++ = *filename++;
3741 }
3742 strcpy(s, " 2>&1");
6ad3d225 3743 myfp = PerlProc_popen(cmdline, "r");
1e422769 3744 Safefree(cmdline);
3745
a0d0e21e 3746 if (myfp) {
1e422769 3747 SV *tmpsv = sv_newmortal();
6b88bc9c 3748 /* Need to save/restore 'PL_rs' ?? */
760ac839 3749 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3750 (void)PerlProc_pclose(myfp);
a0d0e21e 3751 if (s != Nullch) {
1e422769 3752 int e;
3753 for (e = 1;
a0d0e21e 3754#ifdef HAS_SYS_ERRLIST
1e422769 3755 e <= sys_nerr
3756#endif
3757 ; e++)
3758 {
3759 /* you don't see this */
3760 char *errmsg =
3761#ifdef HAS_SYS_ERRLIST
3762 sys_errlist[e]
a0d0e21e 3763#else
1e422769 3764 strerror(e)
a0d0e21e 3765#endif
1e422769 3766 ;
3767 if (!errmsg)
3768 break;
3769 if (instr(s, errmsg)) {
3770 SETERRNO(e,0);
3771 return 0;
3772 }
a0d0e21e 3773 }
748a9306 3774 SETERRNO(0,0);
a0d0e21e
LW		 3775#ifndef EACCES
3776#define EACCES EPERM
3777#endif
1e422769 3778 if (instr(s, "cannot make"))
93189314 3779 SETERRNO(EEXIST,RMS_FEX);
1e422769 3780 else if (instr(s, "existing file"))
93189314 3781 SETERRNO(EEXIST,RMS_FEX);
1e422769 3782 else if (instr(s, "ile exists"))
93189314 3783 SETERRNO(EEXIST,RMS_FEX);
1e422769 3784 else if (instr(s, "non-exist"))
93189314 3785 SETERRNO(ENOENT,RMS_FNF);
1e422769 3786 else if (instr(s, "does not exist"))
93189314 3787 SETERRNO(ENOENT,RMS_FNF);
1e422769 3788 else if (instr(s, "not empty"))
93189314 3789 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3790 else if (instr(s, "cannot access"))
93189314 3791 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3792 else
93189314 3793 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3794 return 0;
3795 }
3796 else { /* some mkdirs return no failure indication */
6b88bc9c 3797 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3798 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3799 anum = !anum;
3800 if (anum)
748a9306 3801 SETERRNO(0,0);
a0d0e21e 3802 else
93189314 3803 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3804 }
3805 return anum;
3806 }
3807 else
3808 return 0;
3809}
3810#endif
3811
0c54f65b
RGS		 3812/* This macro removes trailing slashes from a directory name.
3813 * Different operating and file systems take differently to
3814 * trailing slashes. According to POSIX 1003.1 1996 Edition
3815 * any number of trailing slashes should be allowed.
3816 * Thusly we snip them away so that even non-conforming
3817 * systems are happy.
3818 * We should probably do this "filtering" for all
3819 * the functions that expect (potentially) directory names:
3820 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3821 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3822
3823#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3824 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3825 do { \
3826 (len)--; \
3827 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3828 (tmps) = savepvn((tmps), (len)); \
3829 (copy) = TRUE; \
3830 }
3831
a0d0e21e
LW		 3832PP(pp_mkdir)
3833{
39644a26 3834 dSP; dTARGET;
5a211162 3835 int mode;
a0d0e21e
LW		 3836#ifndef HAS_MKDIR
3837 int oldumask;
3838#endif
df25ddba 3839 STRLEN len;
5a211162 3840 char *tmps;
df25ddba 3841 bool copy = FALSE;
5a211162
GS		 3842
3843 if (MAXARG > 1)
3844 mode = POPi;
3845 else
3846 mode = 0777;
3847
0c54f65b 3848 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3849
3850 TAINT_PROPER("mkdir");
3851#ifdef HAS_MKDIR
6ad3d225 3852 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3853#else
3854 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3855 oldumask = PerlLIO_umask(0);
3856 PerlLIO_umask(oldumask);
3857 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3858#endif
df25ddba
JH		 3859 if (copy)
3860 Safefree(tmps);
a0d0e21e
LW		 3861 RETURN;
3862}
3863
3864PP(pp_rmdir)
3865{
39644a26 3866 dSP; dTARGET;
0c54f65b 3867 STRLEN len;
a0d0e21e 3868 char *tmps;
0c54f65b 3869 bool copy = FALSE;
a0d0e21e 3870
0c54f65b 3871 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3872 TAINT_PROPER("rmdir");
3873#ifdef HAS_RMDIR
0c54f65b 3874 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3875#else
0c54f65b 3876 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3877#endif
0c54f65b
RGS		 3878 if (copy)
3879 Safefree(tmps);
a0d0e21e
LW		 3880 RETURN;
3881}
3882
3883/* Directory calls. */
3884
3885PP(pp_open_dir)
3886{
a0d0e21e 3887#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3888 dSP;
2d8e6c8d
GS		 3889 STRLEN n_a;
3890 char *dirname = POPpx;
1e2c6ed7
JH		 3891 GV *gv = (GV*)POPs;
3892 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3893
3894 if (!io)
3895 goto nope;
3896
3897 if (IoDIRP(io))
6ad3d225
GS		 3898 PerlDir_close(IoDIRP(io));
3899 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3900 goto nope;
3901
3902 RETPUSHYES;
3903nope:
3904 if (!errno)
93189314 3905 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3906 RETPUSHUNDEF;
3907#else
cea2e8a9 3908 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3909#endif
3910}
3911
3912PP(pp_readdir)
3913{
34b7f128
AMS		 3914#if !defined(Direntry_t) || !defined(HAS_READDIR)
3915 DIE(aTHX_ PL_no_dir_func, "readdir");
3916#else
fd8cd3a3 3917#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3918 Direntry_t *readdir (DIR *);
a0d0e21e 3919#endif
34b7f128
AMS		 3920 dSP;
3921
3922 SV *sv;
3923 I32 gimme = GIMME;
3924 GV *gv = (GV *)POPs;
a0d0e21e 3925 register Direntry_t *dp;
a0d0e21e
LW		 3926 register IO *io = GvIOn(gv);
3927
3928 if (!io || !IoDIRP(io))
3929 goto nope;
3930
34b7f128
AMS		 3931 do {
3932 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3933 if (!dp)
3934 break;
a0d0e21e 3935#ifdef DIRNAMLEN
34b7f128 3936 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3937#else
34b7f128 3938 sv = newSVpv(dp->d_name, 0);
fb73857a 3939#endif
3940#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3941 if (!(IoFLAGS(io) & IOf_UNTAINT))
3942 SvTAINTED_on(sv);
a0d0e21e 3943#endif
34b7f128 3944 XPUSHs(sv_2mortal(sv));
a0d0e21e 3945 }
34b7f128
AMS		 3946 while (gimme == G_ARRAY);
3947
3948 if (!dp && gimme != G_ARRAY)
3949 goto nope;
3950
a0d0e21e
LW		 3951 RETURN;
3952
3953nope:
3954 if (!errno)
93189314 3955 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3956 if (GIMME == G_ARRAY)
3957 RETURN;
3958 else
3959 RETPUSHUNDEF;
a0d0e21e
LW		 3960#endif
3961}
3962
3963PP(pp_telldir)
3964{
a0d0e21e 3965#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3966 dSP; dTARGET;
968dcd91
JH		 3967 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3968 /* XXX netbsd still seemed to.
3969 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3970 --JHI 1999-Feb-02 */
3971# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3972 long telldir (DIR *);
dfe9444c 3973# endif
a0d0e21e
LW		 3974 GV *gv = (GV*)POPs;
3975 register IO *io = GvIOn(gv);
3976
3977 if (!io || !IoDIRP(io))
3978 goto nope;
3979
6ad3d225 3980 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3981 RETURN;
3982nope:
3983 if (!errno)
93189314 3984 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3985 RETPUSHUNDEF;
3986#else
cea2e8a9 3987 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3988#endif
3989}
3990
3991PP(pp_seekdir)
3992{
a0d0e21e 3993#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3994 dSP;
a0d0e21e
LW		 3995 long along = POPl;
3996 GV *gv = (GV*)POPs;
3997 register IO *io = GvIOn(gv);
3998
3999 if (!io || !IoDIRP(io))
4000 goto nope;
4001
6ad3d225 4002 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4003
4004 RETPUSHYES;
4005nope:
4006 if (!errno)
93189314 4007 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4008 RETPUSHUNDEF;
4009#else
cea2e8a9 4010 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4011#endif
4012}
4013
4014PP(pp_rewinddir)
4015{
a0d0e21e 4016#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4017 dSP;
a0d0e21e
LW		 4018 GV *gv = (GV*)POPs;
4019 register IO *io = GvIOn(gv);
4020
4021 if (!io || !IoDIRP(io))
4022 goto nope;
4023
6ad3d225 4024 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4025 RETPUSHYES;
4026nope:
4027 if (!errno)
93189314 4028 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4029 RETPUSHUNDEF;
4030#else
cea2e8a9 4031 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4032#endif
4033}
4034
4035PP(pp_closedir)
4036{
a0d0e21e 4037#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4038 dSP;
a0d0e21e
LW		 4039 GV *gv = (GV*)POPs;
4040 register IO *io = GvIOn(gv);
4041
4042 if (!io || !IoDIRP(io))
4043 goto nope;
4044
4045#ifdef VOID_CLOSEDIR
6ad3d225 4046 PerlDir_close(IoDIRP(io));
a0d0e21e 4047#else
6ad3d225 4048 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4049 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4050 goto nope;
748a9306 4051 }
a0d0e21e
LW		 4052#endif
4053 IoDIRP(io) = 0;
4054
4055 RETPUSHYES;
4056nope:
4057 if (!errno)
93189314 4058 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4059 RETPUSHUNDEF;
4060#else
cea2e8a9 4061 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4062#endif
4063}
4064
4065/* Process control. */
4066
4067PP(pp_fork)
4068{
44a8e56a 4069#ifdef HAS_FORK
39644a26 4070 dSP; dTARGET;
761237fe 4071 Pid_t childpid;
a0d0e21e
LW		 4072 GV *tmpgv;
4073
4074 EXTEND(SP, 1);
45bc9206 4075 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4076 childpid = PerlProc_fork();
a0d0e21e
LW		 4077 if (childpid < 0)
4078 RETSETUNDEF;
4079 if (!childpid) {
4080 /*SUPPRESS 560*/
306196c3
MS		 4081 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4082 SvREADONLY_off(GvSV(tmpgv));
146174a9 4083 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4084 SvREADONLY_on(GvSV(tmpgv));
4085 }
4d76a344
RGS		 4086#ifdef THREADS_HAVE_PIDS
4087 PL_ppid = (IV)getppid();
4088#endif
3280af22 4089 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4090 }
4091 PUSHi(childpid);
4092 RETURN;
4093#else
146174a9 4094# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4095 dSP; dTARGET;
146174a9
CB		 4096 Pid_t childpid;
4097
4098 EXTEND(SP, 1);
4099 PERL_FLUSHALL_FOR_CHILD;
4100 childpid = PerlProc_fork();
60fa28ff
GS		 4101 if (childpid == -1)
4102 RETSETUNDEF;
146174a9
CB		 4103 PUSHi(childpid);
4104 RETURN;
4105# else
0322a713 4106 DIE(aTHX_ PL_no_func, "fork");
146174a9 4107# endif
a0d0e21e
LW		 4108#endif
4109}
4110
4111PP(pp_wait)
4112{
301e8125 4113#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4114 dSP; dTARGET;
761237fe 4115 Pid_t childpid;
a0d0e21e 4116 int argflags;
a0d0e21e 4117
4ffa73a3
JH		 4118 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4119 childpid = wait4pid(-1, &argflags, 0);
4120 else {
4121 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4122 errno == EINTR) {
4123 PERL_ASYNC_CHECK();
4124 }
0a0ada86 4125 }
68a29c53
GS		 4126# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4127 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4128 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4129# else
f86702cc 4130 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4131# endif
44a8e56a 4132 XPUSHi(childpid);
a0d0e21e
LW		 4133 RETURN;
4134#else
0322a713 4135 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4136#endif
4137}
4138
4139PP(pp_waitpid)
4140{
301e8125 4141#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4142 dSP; dTARGET;
2ec0bfb3
SG		 4143 Pid_t pid;
4144 Pid_t result;
a0d0e21e
LW		 4145 int optype;
4146 int argflags;
a0d0e21e 4147
a0d0e21e 4148 optype = POPi;
2ec0bfb3 4149 pid = TOPi;
4ffa73a3 4150 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4151 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4152 else {
2ec0bfb3 4153 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4154 errno == EINTR) {
4155 PERL_ASYNC_CHECK();
4156 }
0a0ada86 4157 }
68a29c53
GS		 4158# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4159 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4160 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4161# else
2ec0bfb3 4162 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4163# endif
2ec0bfb3 4164 SETi(result);
a0d0e21e
LW		 4165 RETURN;
4166#else
0322a713 4167 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4168#endif
4169}
4170
4171PP(pp_system)
4172{
39644a26 4173 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4174 I32 value;
2d8e6c8d 4175 STRLEN n_a;
76ffd3b9 4176 int result;
e7766f89 4177 I32 did_pipes = 0;
a0d0e21e 4178
bbd7eb8a
RD		 4179 if (PL_tainting) {
4180 TAINT_ENV();
4181 while (++MARK <= SP) {
4182 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4183 if (PL_tainted)
bbd7eb8a
RD		 4184 break;
4185 }
4186 MARK = ORIGMARK;
5a445156 4187 TAINT_PROPER("system");
a0d0e21e 4188 }
45bc9206 4189 PERL_FLUSHALL_FOR_CHILD;
273b0206 4190#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4191 {
eb160463
GS		 4192 Pid_t childpid;
4193 int pp[2];
4194
4195 if (PerlProc_pipe(pp) >= 0)
4196 did_pipes = 1;
4197 while ((childpid = PerlProc_fork()) == -1) {
4198 if (errno != EAGAIN) {
4199 value = -1;
4200 SP = ORIGMARK;
4201 PUSHi(value);
4202 if (did_pipes) {
4203 PerlLIO_close(pp[0]);
4204 PerlLIO_close(pp[1]);
4205 }
4206 RETURN;
4207 }
4208 sleep(5);
4209 }
4210 if (childpid > 0) {
4211 Sigsave_t ihand,qhand; /* place to save signals during system() */
4212 int status;
4213
4214 if (did_pipes)
4215 PerlLIO_close(pp[1]);
64ca3a65 4216#ifndef PERL_MICRO
eb160463
GS		 4217 rsignal_save(SIGINT, SIG_IGN, &ihand);
4218 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4219#endif
eb160463
GS		 4220 do {
4221 result = wait4pid(childpid, &status, 0);
4222 } while (result == -1 && errno == EINTR);
64ca3a65 4223#ifndef PERL_MICRO
eb160463
GS		 4224 (void)rsignal_restore(SIGINT, &ihand);
4225 (void)rsignal_restore(SIGQUIT, &qhand);
4226#endif
4227 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4228 do_execfree(); /* free any memory child malloced on fork */
4229 SP = ORIGMARK;
4230 if (did_pipes) {
4231 int errkid;
4232 int n = 0, n1;
4233
4234 while (n < sizeof(int)) {
4235 n1 = PerlLIO_read(pp[0],
4236 (void*)(((char*)&errkid)+n),
4237 (sizeof(int)) - n);
4238 if (n1 <= 0)
4239 break;
4240 n += n1;
4241 }
4242 PerlLIO_close(pp[0]);
4243 if (n) { /* Error */
4244 if (n != sizeof(int))
4245 DIE(aTHX_ "panic: kid popen errno read");
4246 errno = errkid; /* Propagate errno from kid */
4247 STATUS_CURRENT = -1;
4248 }
4249 }
4250 PUSHi(STATUS_CURRENT);
4251 RETURN;
4252 }
4253 if (did_pipes) {
4254 PerlLIO_close(pp[0]);
d5a9bfb0 4255#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4256 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4257#endif
eb160463 4258 }
e0a1f643
JH		 4259 if (PL_op->op_flags & OPf_STACKED) {
4260 SV *really = *++MARK;
4261 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4262 }
4263 else if (SP - MARK != 1)
4264 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4265 else {
4266 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4267 }
4268 PerlProc__exit(-1);
d5a9bfb0 4269 }
c3293030 4270#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4271 PL_statusvalue = 0;
4272 result = 0;
911d147d 4273 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4274 SV *really = *++MARK;
622913ab 4275# if defined(WIN32) || defined(OS2)
54725af6
GS		 4276 value = (I32)do_aspawn(really, MARK, SP);
4277# else
c5be433b 4278 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4279# endif
a0d0e21e 4280 }
54725af6 4281 else if (SP - MARK != 1) {
622913ab 4282# if defined(WIN32) || defined(OS2)
54725af6
GS		 4283 value = (I32)do_aspawn(Nullsv, MARK, SP);
4284# else
c5be433b 4285 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4286# endif
4287 }
a0d0e21e 4288 else {
c5be433b 4289 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4290 }
922b1888
GS		 4291 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4292 result = 1;
f86702cc 4293 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4294 do_execfree();
4295 SP = ORIGMARK;
922b1888 4296 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4297#endif /* !FORK or VMS */
4298 RETURN;
4299}
4300
4301PP(pp_exec)
4302{
39644a26 4303 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4304 I32 value;
2d8e6c8d 4305 STRLEN n_a;
a0d0e21e 4306
bbd7eb8a
RD		 4307 if (PL_tainting) {
4308 TAINT_ENV();
4309 while (++MARK <= SP) {
4310 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4311 if (PL_tainted)
bbd7eb8a
RD		 4312 break;
4313 }
4314 MARK = ORIGMARK;
5a445156 4315 TAINT_PROPER("exec");
bbd7eb8a 4316 }
45bc9206 4317 PERL_FLUSHALL_FOR_CHILD;
533c011a 4318 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4319 SV *really = *++MARK;
4320 value = (I32)do_aexec(really, MARK, SP);
4321 }
4322 else if (SP - MARK != 1)
4323#ifdef VMS
4324 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4325#else
092bebab
JH		 4326# ifdef __OPEN_VM
4327 {
c5be433b 4328 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4329 value = 0;
4330 }
4331# else
a0d0e21e 4332 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4333# endif
a0d0e21e
LW		 4334#endif
4335 else {
a0d0e21e 4336#ifdef VMS
2d8e6c8d 4337 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4338#else
092bebab 4339# ifdef __OPEN_VM
c5be433b 4340 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4341 value = 0;
4342# else
2d8e6c8d 4343 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4344# endif
a0d0e21e
LW		 4345#endif
4346 }
146174a9 4347
a0d0e21e
LW		 4348 SP = ORIGMARK;
4349 PUSHi(value);
4350 RETURN;
4351}
4352
4353PP(pp_kill)
4354{
9cad6237 4355#ifdef HAS_KILL
39644a26 4356 dSP; dMARK; dTARGET;
a0d0e21e 4357 I32 value;
533c011a 4358 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4359 SP = MARK;
4360 PUSHi(value);
4361 RETURN;
4362#else
0322a713 4363 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4364#endif
4365}
4366
4367PP(pp_getppid)
4368{
4369#ifdef HAS_GETPPID
39644a26 4370 dSP; dTARGET;
4d76a344
RGS		 4371# ifdef THREADS_HAVE_PIDS
4372 XPUSHi( PL_ppid );
4373# else
a0d0e21e 4374 XPUSHi( getppid() );
4d76a344 4375# endif
a0d0e21e
LW		 4376 RETURN;
4377#else
cea2e8a9 4378 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4379#endif
4380}
4381
4382PP(pp_getpgrp)
4383{
4384#ifdef HAS_GETPGRP
39644a26 4385 dSP; dTARGET;
d8a83dd3 4386 Pid_t pid;
9853a804 4387 Pid_t pgrp;
a0d0e21e
LW		 4388
4389 if (MAXARG < 1)
4390 pid = 0;
4391 else
4392 pid = SvIVx(POPs);
c3293030 4393#ifdef BSD_GETPGRP
9853a804 4394 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4395#else
146174a9 4396 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4397 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4398 pgrp = getpgrp();
a0d0e21e 4399#endif
9853a804 4400 XPUSHi(pgrp);
a0d0e21e
LW		 4401 RETURN;
4402#else
cea2e8a9 4403 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4404#endif
4405}
4406
4407PP(pp_setpgrp)
4408{
4409#ifdef HAS_SETPGRP
39644a26 4410 dSP; dTARGET;
d8a83dd3
JH		 4411 Pid_t pgrp;
4412 Pid_t pid;
a0d0e21e
LW		 4413 if (MAXARG < 2) {
4414 pgrp = 0;
4415 pid = 0;
4416 }
4417 else {
4418 pgrp = POPi;
4419 pid = TOPi;
4420 }
4421
4422 TAINT_PROPER("setpgrp");
c3293030
IZ		 4423#ifdef BSD_SETPGRP
4424 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4425#else
146174a9
CB		 4426 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4427 || (pid != 0 && pid != PerlProc_getpid()))
4428 {
4429 DIE(aTHX_ "setpgrp can't take arguments");
4430 }
a0d0e21e
LW		 4431 SETi( setpgrp() >= 0 );
4432#endif /* USE_BSDPGRP */
4433 RETURN;
4434#else
cea2e8a9 4435 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4436#endif
4437}
4438
4439PP(pp_getpriority)
4440{
a0d0e21e 4441#ifdef HAS_GETPRIORITY
9cad6237 4442 dSP; dTARGET;
d05c1ba0
JH		 4443 int who = POPi;
4444 int which = TOPi;
a0d0e21e
LW		 4445 SETi( getpriority(which, who) );
4446 RETURN;
4447#else
cea2e8a9 4448 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4449#endif
4450}
4451
4452PP(pp_setpriority)
4453{
a0d0e21e 4454#ifdef HAS_SETPRIORITY
9cad6237 4455 dSP; dTARGET;
d05c1ba0
JH		 4456 int niceval = POPi;
4457 int who = POPi;
4458 int which = TOPi;
a0d0e21e
LW		 4459 TAINT_PROPER("setpriority");
4460 SETi( setpriority(which, who, niceval) >= 0 );
4461 RETURN;
4462#else
cea2e8a9 4463 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4464#endif
4465}
4466
4467/* Time calls. */
4468
4469PP(pp_time)
4470{
39644a26 4471 dSP; dTARGET;
cbdc8872 4472#ifdef BIG_TIME
4473 XPUSHn( time(Null(Time_t*)) );
4474#else
a0d0e21e 4475 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4476#endif
a0d0e21e
LW		 4477 RETURN;
4478}
4479
a0d0e21e
LW		 4480PP(pp_tms)
4481{
9cad6237 4482#ifdef HAS_TIMES
39644a26 4483 dSP;
a0d0e21e 4484 EXTEND(SP, 4);
a0d0e21e 4485#ifndef VMS
3280af22 4486 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4487#else
6b88bc9c 4488 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4489 /* struct tms, though same data */
4490 /* is returned. */
a0d0e21e
LW		 4491#endif
4492
5311654c 4493 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4494 if (GIMME == G_ARRAY) {
5311654c
JH		 4495 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4496 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4497 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4498 }
4499 RETURN;
9cad6237 4500#else
2f42fcb0
JH		 4501# ifdef PERL_MICRO
4502 dSP;
4503 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4504 EXTEND(SP, 4);
4505 if (GIMME == G_ARRAY) {
4506 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4507 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4508 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4509 }
4510 RETURN;
4511# else
9cad6237 4512 DIE(aTHX_ "times not implemented");
2f42fcb0 4513# endif
55497cff 4514#endif /* HAS_TIMES */
a0d0e21e
LW		 4515}
4516
4517PP(pp_localtime)
4518{
cea2e8a9 4519 return pp_gmtime();
a0d0e21e
LW		 4520}
4521
4522PP(pp_gmtime)
4523{
39644a26 4524 dSP;
a0d0e21e 4525 Time_t when;
bfed75c6
AL		 4526 const struct tm *tmbuf;
4527 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4528 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
a0d0e21e
LW		 4529 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4530
4531 if (MAXARG < 1)
4532 (void)time(&when);
4533 else
cbdc8872 4534#ifdef BIG_TIME
4535 when = (Time_t)SvNVx(POPs);
4536#else
a0d0e21e 4537 when = (Time_t)SvIVx(POPs);
cbdc8872 4538#endif
a0d0e21e 4539
533c011a 4540 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4541 tmbuf = localtime(&when);
4542 else
4543 tmbuf = gmtime(&when);
4544
a0d0e21e 4545 if (GIMME != G_ARRAY) {
46fc3d4c 4546 SV *tsv;
9a5ff6d9
AB		 4547 EXTEND(SP, 1);
4548 EXTEND_MORTAL(1);
a0d0e21e
LW		 4549 if (!tmbuf)
4550 RETPUSHUNDEF;
be28567c 4551 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4552 dayname[tmbuf->tm_wday],
4553 monname[tmbuf->tm_mon],
be28567c
GS		 4554 tmbuf->tm_mday,
4555 tmbuf->tm_hour,
4556 tmbuf->tm_min,
4557 tmbuf->tm_sec,
4558 tmbuf->tm_year + 1900);
46fc3d4c 4559 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4560 }
4561 else if (tmbuf) {
9a5ff6d9
AB		 4562 EXTEND(SP, 9);
4563 EXTEND_MORTAL(9);
4564 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4566 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4567 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4568 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4569 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4570 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4571 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4573 }
4574 RETURN;
4575}
4576
4577PP(pp_alarm)
4578{
9cad6237 4579#ifdef HAS_ALARM
39644a26 4580 dSP; dTARGET;
a0d0e21e 4581 int anum;
a0d0e21e
LW		 4582 anum = POPi;
4583 anum = alarm((unsigned int)anum);
4584 EXTEND(SP, 1);
4585 if (anum < 0)
4586 RETPUSHUNDEF;
c6419e06 4587 PUSHi(anum);
a0d0e21e
LW		 4588 RETURN;
4589#else
0322a713 4590 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4591#endif
4592}
4593
4594PP(pp_sleep)
4595{
39644a26 4596 dSP; dTARGET;
a0d0e21e
LW		 4597 I32 duration;
4598 Time_t lasttime;
4599 Time_t when;
4600
4601 (void)time(&lasttime);
4602 if (MAXARG < 1)
76e3520e 4603 PerlProc_pause();
a0d0e21e
LW		 4604 else {
4605 duration = POPi;
76e3520e 4606 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4607 }
4608 (void)time(&when);
4609 XPUSHi(when - lasttime);
4610 RETURN;
4611}
4612
4613/* Shared memory. */
4614
4615PP(pp_shmget)
4616{
cea2e8a9 4617 return pp_semget();
a0d0e21e
LW		 4618}
4619
4620PP(pp_shmctl)
4621{
cea2e8a9 4622 return pp_semctl();
a0d0e21e
LW		 4623}
4624
4625PP(pp_shmread)
4626{
cea2e8a9 4627 return pp_shmwrite();
a0d0e21e
LW		 4628}
4629
4630PP(pp_shmwrite)
4631{
4632#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4633 dSP; dMARK; dTARGET;
533c011a 4634 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4635 SP = MARK;
4636 PUSHi(value);
4637 RETURN;
4638#else
cea2e8a9 4639 return pp_semget();
a0d0e21e
LW		 4640#endif
4641}
4642
4643/* Message passing. */
4644
4645PP(pp_msgget)
4646{
cea2e8a9 4647 return pp_semget();
a0d0e21e
LW		 4648}
4649
4650PP(pp_msgctl)
4651{
cea2e8a9 4652 return pp_semctl();
a0d0e21e
LW		 4653}
4654
4655PP(pp_msgsnd)
4656{
4657#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4658 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4659 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4660 SP = MARK;
4661 PUSHi(value);
4662 RETURN;
4663#else
cea2e8a9 4664 return pp_semget();
a0d0e21e
LW		 4665#endif
4666}
4667
4668PP(pp_msgrcv)
4669{
4670#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4671 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4672 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4673 SP = MARK;
4674 PUSHi(value);
4675 RETURN;
4676#else
cea2e8a9 4677 return pp_semget();
a0d0e21e
LW		 4678#endif
4679}
4680
4681/* Semaphores. */
4682
4683PP(pp_semget)
4684{
4685#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4686 dSP; dMARK; dTARGET;
533c011a 4687 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4688 SP = MARK;
4689 if (anum == -1)
4690 RETPUSHUNDEF;
4691 PUSHi(anum);
4692 RETURN;
4693#else
cea2e8a9 4694 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4695#endif
4696}
4697
4698PP(pp_semctl)
4699{
4700#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4701 dSP; dMARK; dTARGET;
533c011a 4702 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4703 SP = MARK;
4704 if (anum == -1)
4705 RETSETUNDEF;
4706 if (anum != 0) {
4707 PUSHi(anum);
4708 }
4709 else {
8903cb82 4710 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4711 }
4712 RETURN;
4713#else
cea2e8a9 4714 return pp_semget();
a0d0e21e
LW		 4715#endif
4716}
4717
4718PP(pp_semop)
4719{
4720#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4721 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4722 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4723 SP = MARK;
4724 PUSHi(value);
4725 RETURN;
4726#else
cea2e8a9 4727 return pp_semget();
a0d0e21e
LW		 4728#endif
4729}
4730
4731/* Get system info. */
4732
4733PP(pp_ghbyname)
4734{
693762b4 4735#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4736 return pp_ghostent();
a0d0e21e 4737#else
cea2e8a9 4738 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4739#endif
4740}
4741
4742PP(pp_ghbyaddr)
4743{
693762b4 4744#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4745 return pp_ghostent();
a0d0e21e 4746#else
cea2e8a9 4747 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4748#endif
4749}
4750
4751PP(pp_ghostent)
4752{
693762b4 4753#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4754 dSP;
533c011a 4755 I32 which = PL_op->op_type;
a0d0e21e
LW		 4756 register char **elem;
4757 register SV *sv;
dc45a647 4758#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4759 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4760 struct hostent *gethostbyname(Netdb_name_t);
4761 struct hostent *gethostent(void);
a0d0e21e
LW		 4762#endif
4763 struct hostent *hent;
4764 unsigned long len;
2d8e6c8d 4765 STRLEN n_a;
a0d0e21e
LW		 4766
4767 EXTEND(SP, 10);
edd309b7 4768 if (which == OP_GHBYNAME) {
dc45a647 4769#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4770 char* name = POPpbytex;
4771 hent = PerlSock_gethostbyname(name);
dc45a647 4772#else
cea2e8a9 4773 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4774#endif
edd309b7 4775 }
a0d0e21e 4776 else if (which == OP_GHBYADDR) {
dc45a647 4777#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4778 int addrtype = POPi;
748a9306 4779 SV *addrsv = POPs;
a0d0e21e 4780 STRLEN addrlen;
595ae481 4781 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4782
4599a1de 4783 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4784#else
cea2e8a9 4785 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4786#endif
a0d0e21e
LW		 4787 }
4788 else
4789#ifdef HAS_GETHOSTENT
6ad3d225 4790 hent = PerlSock_gethostent();
a0d0e21e 4791#else
cea2e8a9 4792 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4793#endif
4794
4795#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4796 if (!hent) {
4797#ifdef USE_REENTRANT_API
4798# ifdef USE_GETHOSTENT_ERRNO
4799 h_errno = PL_reentrant_buffer->_gethostent_errno;
4800# endif
4801#endif
4802 STATUS_NATIVE_SET(h_errno);
4803 }
a0d0e21e
LW		 4804#endif
4805
4806 if (GIMME != G_ARRAY) {
4807 PUSHs(sv = sv_newmortal());
4808 if (hent) {
4809 if (which == OP_GHBYNAME) {
fd0af264 4810 if (hent->h_addr)
4811 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4812 }
4813 else
4814 sv_setpv(sv, (char*)hent->h_name);
4815 }
4816 RETURN;
4817 }
4818
4819 if (hent) {
3280af22 4820 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4821 sv_setpv(sv, (char*)hent->h_name);
3280af22 4822 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4823 for (elem = hent->h_aliases; elem && *elem; elem++) {
4824 sv_catpv(sv, *elem);
4825 if (elem[1])
4826 sv_catpvn(sv, " ", 1);
4827 }
3280af22 4828 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4829 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4830 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4831 len = hent->h_length;
1e422769 4832 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4833#ifdef h_addr
4834 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4835 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4836 sv_setpvn(sv, *elem, len);
4837 }
4838#else
6b88bc9c 4839 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4840 if (hent->h_addr)
4841 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4842#endif /* h_addr */
4843 }
4844 RETURN;
4845#else
cea2e8a9 4846 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4847#endif
4848}
4849
4850PP(pp_gnbyname)
4851{
693762b4 4852#ifdef HAS_GETNETBYNAME
cea2e8a9 4853 return pp_gnetent();
a0d0e21e 4854#else
cea2e8a9 4855 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4856#endif
4857}
4858
4859PP(pp_gnbyaddr)
4860{
693762b4 4861#ifdef HAS_GETNETBYADDR
cea2e8a9 4862 return pp_gnetent();
a0d0e21e 4863#else
cea2e8a9 4864 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4865#endif
4866}
4867
4868PP(pp_gnetent)
4869{
693762b4 4870#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4871 dSP;
533c011a 4872 I32 which = PL_op->op_type;
a0d0e21e
LW		 4873 register char **elem;
4874 register SV *sv;
dc45a647 4875#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4876 struct netent *getnetbyaddr(Netdb_net_t, int);
4877 struct netent *getnetbyname(Netdb_name_t);
4878 struct netent *getnetent(void);
8ac85365 4879#endif
a0d0e21e 4880 struct netent *nent;
2d8e6c8d 4881 STRLEN n_a;
a0d0e21e 4882
edd309b7 4883 if (which == OP_GNBYNAME){
dc45a647 4884#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4885 char *name = POPpbytex;
4886 nent = PerlSock_getnetbyname(name);
dc45a647 4887#else
cea2e8a9 4888 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4889#endif
edd309b7 4890 }
a0d0e21e 4891 else if (which == OP_GNBYADDR) {
dc45a647 4892#ifdef HAS_GETNETBYADDR
a0d0e21e 4893 int addrtype = POPi;
3bb7c1b4 4894 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4895 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4896#else
cea2e8a9 4897 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4898#endif
a0d0e21e
LW		 4899 }
4900 else
dc45a647 4901#ifdef HAS_GETNETENT
76e3520e 4902 nent = PerlSock_getnetent();
dc45a647 4903#else
cea2e8a9 4904 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4905#endif
a0d0e21e 4906
10bc17b6
JH		 4907#ifdef HOST_NOT_FOUND
4908 if (!nent) {
4909#ifdef USE_REENTRANT_API
4910# ifdef USE_GETNETENT_ERRNO
4911 h_errno = PL_reentrant_buffer->_getnetent_errno;
4912# endif
4913#endif
4914 STATUS_NATIVE_SET(h_errno);
4915 }
4916#endif
4917
a0d0e21e
LW		 4918 EXTEND(SP, 4);
4919 if (GIMME != G_ARRAY) {
4920 PUSHs(sv = sv_newmortal());
4921 if (nent) {
4922 if (which == OP_GNBYNAME)
1e422769 4923 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4924 else
4925 sv_setpv(sv, nent->n_name);
4926 }
4927 RETURN;
4928 }
4929
4930 if (nent) {
3280af22 4931 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4932 sv_setpv(sv, nent->n_name);
3280af22 4933 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4934 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4935 sv_catpv(sv, *elem);
4936 if (elem[1])
4937 sv_catpvn(sv, " ", 1);
4938 }
3280af22 4939 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4940 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4941 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4942 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4943 }
4944
4945 RETURN;
4946#else
cea2e8a9 4947 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4948#endif
4949}
4950
4951PP(pp_gpbyname)
4952{
693762b4 4953#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4954 return pp_gprotoent();
a0d0e21e 4955#else
cea2e8a9 4956 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4957#endif
4958}
4959
4960PP(pp_gpbynumber)
4961{
693762b4 4962#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4963 return pp_gprotoent();
a0d0e21e 4964#else
cea2e8a9 4965 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4966#endif
4967}
4968
4969PP(pp_gprotoent)
4970{
693762b4 4971#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4972 dSP;
533c011a 4973 I32 which = PL_op->op_type;
a0d0e21e 4974 register char **elem;
301e8125 4975 register SV *sv;
dc45a647 4976#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4977 struct protoent *getprotobyname(Netdb_name_t);
4978 struct protoent *getprotobynumber(int);
4979 struct protoent *getprotoent(void);
8ac85365 4980#endif
a0d0e21e 4981 struct protoent *pent;
2d8e6c8d 4982 STRLEN n_a;
a0d0e21e 4983
edd309b7 4984 if (which == OP_GPBYNAME) {
e5c9fcd0 4985#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4986 char* name = POPpbytex;
4987 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4988#else
cea2e8a9 4989 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4990#endif
edd309b7
JH		 4991 }
4992 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4993#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4994 int number = POPi;
4995 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4996#else
edd309b7 4997 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4998#endif
edd309b7 4999 }
a0d0e21e 5000 else
e5c9fcd0 5001#ifdef HAS_GETPROTOENT
6ad3d225 5002 pent = PerlSock_getprotoent();
e5c9fcd0 5003#else
cea2e8a9 5004 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5005#endif
a0d0e21e
LW		 5006
5007 EXTEND(SP, 3);
5008 if (GIMME != G_ARRAY) {
5009 PUSHs(sv = sv_newmortal());
5010 if (pent) {
5011 if (which == OP_GPBYNAME)
1e422769 5012 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5013 else
5014 sv_setpv(sv, pent->p_name);
5015 }
5016 RETURN;
5017 }
5018
5019 if (pent) {
3280af22 5020 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5021 sv_setpv(sv, pent->p_name);
3280af22 5022 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5023 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5024 sv_catpv(sv, *elem);
5025 if (elem[1])
5026 sv_catpvn(sv, " ", 1);
5027 }
3280af22 5028 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5029 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5030 }
5031
5032 RETURN;
5033#else
cea2e8a9 5034 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5035#endif
5036}
5037
5038PP(pp_gsbyname)
5039{
9ec75305 5040#ifdef HAS_GETSERVBYNAME
cea2e8a9 5041 return pp_gservent();
a0d0e21e 5042#else
cea2e8a9 5043 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5044#endif
5045}
5046
5047PP(pp_gsbyport)
5048{
9ec75305 5049#ifdef HAS_GETSERVBYPORT
cea2e8a9 5050 return pp_gservent();
a0d0e21e 5051#else
cea2e8a9 5052 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5053#endif
5054}
5055
5056PP(pp_gservent)
5057{
693762b4 5058#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5059 dSP;
533c011a 5060 I32 which = PL_op->op_type;
a0d0e21e
LW		 5061 register char **elem;
5062 register SV *sv;
dc45a647 5063#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5064 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5065 struct servent *getservbyport(int, Netdb_name_t);
5066 struct servent *getservent(void);
8ac85365 5067#endif
a0d0e21e 5068 struct servent *sent;
2d8e6c8d 5069 STRLEN n_a;
a0d0e21e
LW		 5070
5071 if (which == OP_GSBYNAME) {
dc45a647 5072#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5073 char *proto = POPpbytex;
5074 char *name = POPpbytex;
a0d0e21e
LW		 5075
5076 if (proto && !*proto)
5077 proto = Nullch;
5078
6ad3d225 5079 sent = PerlSock_getservbyname(name, proto);
dc45a647 5080#else
cea2e8a9 5081 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5082#endif
a0d0e21e
LW		 5083 }
5084 else if (which == OP_GSBYPORT) {
dc45a647 5085#ifdef HAS_GETSERVBYPORT
42e0c139 5086 char *proto = POPpbytex;
eb160463 5087 unsigned short port = (unsigned short)POPu;
a0d0e21e 5088
2b872cca
SR		 5089 if (proto && !*proto)
5090 proto = Nullch;
5091
36477c24 5092#ifdef HAS_HTONS
6ad3d225 5093 port = PerlSock_htons(port);
36477c24 5094#endif
6ad3d225 5095 sent = PerlSock_getservbyport(port, proto);
dc45a647 5096#else
cea2e8a9 5097 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5098#endif
a0d0e21e
LW		 5099 }
5100 else
e5c9fcd0 5101#ifdef HAS_GETSERVENT
6ad3d225 5102 sent = PerlSock_getservent();
e5c9fcd0 5103#else
cea2e8a9 5104 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5105#endif
a0d0e21e
LW		 5106
5107 EXTEND(SP, 4);
5108 if (GIMME != G_ARRAY) {
5109 PUSHs(sv = sv_newmortal());
5110 if (sent) {
5111 if (which == OP_GSBYNAME) {
5112#ifdef HAS_NTOHS
6ad3d225 5113 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5114#else
1e422769 5115 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5116#endif
5117 }
5118 else
5119 sv_setpv(sv, sent->s_name);
5120 }
5121 RETURN;
5122 }
5123
5124 if (sent) {
3280af22 5125 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5126 sv_setpv(sv, sent->s_name);
3280af22 5127 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5128 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5129 sv_catpv(sv, *elem);
5130 if (elem[1])
5131 sv_catpvn(sv, " ", 1);
5132 }
3280af22 5133 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5134#ifdef HAS_NTOHS
76e3520e 5135 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5136#else
1e422769 5137 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5138#endif
3280af22 5139 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5140 sv_setpv(sv, sent->s_proto);
5141 }
5142
5143 RETURN;
5144#else
cea2e8a9 5145 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5146#endif
5147}
5148
5149PP(pp_shostent)
5150{
693762b4 5151#ifdef HAS_SETHOSTENT
9cad6237 5152 dSP;
76e3520e 5153 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5154 RETSETYES;
5155#else
cea2e8a9 5156 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5157#endif
5158}
5159
5160PP(pp_snetent)
5161{
693762b4 5162#ifdef HAS_SETNETENT
9cad6237 5163 dSP;
76e3520e 5164 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5165 RETSETYES;
5166#else
cea2e8a9 5167 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5168#endif
5169}
5170
5171PP(pp_sprotoent)
5172{
693762b4 5173#ifdef HAS_SETPROTOENT
9cad6237 5174 dSP;
76e3520e 5175 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5176 RETSETYES;
5177#else
cea2e8a9 5178 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5179#endif
5180}
5181
5182PP(pp_sservent)
5183{
693762b4 5184#ifdef HAS_SETSERVENT
9cad6237 5185 dSP;
76e3520e 5186 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5187 RETSETYES;
5188#else
cea2e8a9 5189 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5190#endif
5191}
5192
5193PP(pp_ehostent)
5194{
693762b4 5195#ifdef HAS_ENDHOSTENT
9cad6237 5196 dSP;
76e3520e 5197 PerlSock_endhostent();
924508f0 5198 EXTEND(SP,1);
a0d0e21e
LW		 5199 RETPUSHYES;
5200#else
cea2e8a9 5201 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5202#endif
5203}
5204
5205PP(pp_enetent)
5206{
693762b4 5207#ifdef HAS_ENDNETENT
9cad6237 5208 dSP;
76e3520e 5209 PerlSock_endnetent();
924508f0 5210 EXTEND(SP,1);
a0d0e21e
LW		 5211 RETPUSHYES;
5212#else
cea2e8a9 5213 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5214#endif
5215}
5216
5217PP(pp_eprotoent)
5218{
693762b4 5219#ifdef HAS_ENDPROTOENT
9cad6237 5220 dSP;
76e3520e 5221 PerlSock_endprotoent();
924508f0 5222 EXTEND(SP,1);
a0d0e21e
LW		 5223 RETPUSHYES;
5224#else
cea2e8a9 5225 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5226#endif
5227}
5228
5229PP(pp_eservent)
5230{
693762b4 5231#ifdef HAS_ENDSERVENT
9cad6237 5232 dSP;
76e3520e 5233 PerlSock_endservent();
924508f0 5234 EXTEND(SP,1);
a0d0e21e
LW		 5235 RETPUSHYES;
5236#else
cea2e8a9 5237 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5238#endif
5239}
5240
5241PP(pp_gpwnam)
5242{
5243#ifdef HAS_PASSWD
cea2e8a9 5244 return pp_gpwent();
a0d0e21e 5245#else
cea2e8a9 5246 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5247#endif
5248}
5249
5250PP(pp_gpwuid)
5251{
5252#ifdef HAS_PASSWD
cea2e8a9 5253 return pp_gpwent();
a0d0e21e 5254#else
cea2e8a9 5255 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5256#endif
5257}
5258
5259PP(pp_gpwent)
5260{
0994c4d0 5261#ifdef HAS_PASSWD
9cad6237 5262 dSP;
533c011a 5263 I32 which = PL_op->op_type;
a0d0e21e 5264 register SV *sv;
2d8e6c8d 5265 STRLEN n_a;
e3aefe8d 5266 struct passwd *pwent = NULL;
301e8125 5267 /*
bcf53261
JH		 5268 * We currently support only the SysV getsp* shadow password interface.
5269 * The interface is declared in <shadow.h> and often one needs to link
5270 * with -lsecurity or some such.
5271 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5272 * (and SCO?)
5273 *
5274 * AIX getpwnam() is clever enough to return the encrypted password
5275 * only if the caller (euid?) is root.
5276 *
e549f1c5 5277 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5278 * seem to contain more than one interface for accessing the shadow
5279 * password databases, possibly for compatibility reasons.
3813c136 5280 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5281 * are much more complicated, but also very similar to each other.
5282 *
5283 * <sys/types.h>
5284 * <sys/security.h>
5285 * <prot.h>
5286 * struct pr_passwd *getprpw*();
5287 * The password is in
3813c136
JH		 5288 * char getprpw*(...).ufld.fd_encrypt[]
5289 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5290 *
5291 * <sys/types.h>
5292 * <sys/security.h>
5293 * <prot.h>
5294 * struct es_passwd *getespw*();
5295 * The password is in
5296 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5297 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5298 *
e1920a95 5299 * <userpw.h> (AIX)
e549f1c5
JH		 5300 * struct userpw *getuserpw();
5301 * The password is in
5302 * char *(getuserpw(...)).spw_upw_passwd
5303 * (but the de facto standard getpwnam() should work okay)
5304 *
3813c136 5305 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5306 *
5307 * In HP-UX for getprpw*() the manual page claims that one should include
5308 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5309 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5310 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5311 *
5312 * Note that <sys/security.h> is already probed for, but currently
5313 * it is only included in special cases.
301e8125 5314 *
bcf53261
JH		 5315 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5316 * be preferred interface, even though also the getprpw*() interface
5317 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5318 * One also needs to call set_auth_parameters() in main() before
5319 * doing anything else, whether one is using getespw*() or getprpw*().
5320 *
5321 * Note that accessing the shadow databases can be magnitudes
5322 * slower than accessing the standard databases.
bcf53261
JH		 5323 *
5324 * --jhi
5325 */
a0d0e21e 5326
9e5f0c48
JH		 5327# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5328 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5329 * the pw_comment is left uninitialized. */
5330 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5331# endif
5332
e3aefe8d
JH		 5333 switch (which) {
5334 case OP_GPWNAM:
edd309b7
JH		 5335 {
5336 char* name = POPpbytex;
5337 pwent = getpwnam(name);
5338 }
5339 break;
e3aefe8d 5340 case OP_GPWUID:
edd309b7
JH		 5341 {
5342 Uid_t uid = POPi;
5343 pwent = getpwuid(uid);
5344 }
e3aefe8d
JH		 5345 break;
5346 case OP_GPWENT:
1883634f 5347# ifdef HAS_GETPWENT
e3aefe8d 5348 pwent = getpwent();
faea9016
IRC		 5349#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5350 if (pwent) pwent = getpwnam(pwent->pw_name);
5351#endif
1883634f 5352# else
a45d1c96 5353 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5354# endif
e3aefe8d
JH		 5355 break;
5356 }
8c0bfa08 5357
a0d0e21e
LW		 5358 EXTEND(SP, 10);
5359 if (GIMME != G_ARRAY) {
5360 PUSHs(sv = sv_newmortal());
5361 if (pwent) {
5362 if (which == OP_GPWNAM)
1883634f 5363# if Uid_t_sign <= 0
1e422769 5364 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5365# else
23dcd6c8 5366 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5367# endif
a0d0e21e
LW		 5368 else
5369 sv_setpv(sv, pwent->pw_name);
5370 }
5371 RETURN;
5372 }
5373
5374 if (pwent) {
3280af22 5375 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5376 sv_setpv(sv, pwent->pw_name);
6ee623d5 5377
3280af22 5378 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5379 SvPOK_off(sv);
5380 /* If we have getspnam(), we try to dig up the shadow
5381 * password. If we are underprivileged, the shadow
5382 * interface will set the errno to EACCES or similar,
5383 * and return a null pointer. If this happens, we will
5384 * use the dummy password (usually "*" or "x") from the
5385 * standard password database.
5386 *
5387 * In theory we could skip the shadow call completely
5388 * if euid != 0 but in practice we cannot know which
5389 * security measures are guarding the shadow databases
5390 * on a random platform.
5391 *
5392 * Resist the urge to use additional shadow interfaces.
5393 * Divert the urge to writing an extension instead.
5394 *
5395 * --jhi */
e549f1c5
JH		 5396 /* Some AIX setups falsely(?) detect some getspnam(), which
5397 * has a different API than the Solaris/IRIX one. */
5398# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5399 {
5400 struct spwd *spwent;
5401 int saverrno; /* Save and restore errno so that
5402 * underprivileged attempts seem
5403 * to have never made the unsccessful
5404 * attempt to retrieve the shadow password. */
5405
5406 saverrno = errno;
5407 spwent = getspnam(pwent->pw_name);
5408 errno = saverrno;
5409 if (spwent && spwent->sp_pwdp)
5410 sv_setpv(sv, spwent->sp_pwdp);
5411 }
f1066039 5412# endif
e020c87d 5413# ifdef PWPASSWD
3813c136
JH		 5414 if (!SvPOK(sv)) /* Use the standard password, then. */
5415 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5416# endif
3813c136 5417
1883634f 5418# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5419 /* passwd is tainted because user himself can diddle with it.
5420 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5421 SvTAINTED_on(sv);
1883634f 5422# endif
6ee623d5 5423
3280af22 5424 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5425# if Uid_t_sign <= 0
1e422769 5426 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5427# else
23dcd6c8 5428 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5429# endif
6ee623d5 5430
3280af22 5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5432# if Uid_t_sign <= 0
1e422769 5433 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5434# else
23dcd6c8 5435 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5436# endif
3813c136
JH		 5437 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5438 * because of the poor interface of the Perl getpw*(),
5439 * not because there's some standard/convention saying so.
5440 * A better interface would have been to return a hash,
5441 * but we are accursed by our history, alas. --jhi. */
3280af22 5442 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5443# ifdef PWCHANGE
1e422769 5444 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5445# else
1883634f
JH		 5446# ifdef PWQUOTA
5447 sv_setiv(sv, (IV)pwent->pw_quota);
5448# else
a1757be1 5449# ifdef PWAGE
a0d0e21e 5450 sv_setpv(sv, pwent->pw_age);
a1757be1 5451# endif
6ee623d5
GS		 5452# endif
5453# endif
6ee623d5 5454
3813c136
JH		 5455 /* pw_class and pw_comment are mutually exclusive--.
5456 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5457 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5458# ifdef PWCLASS
a0d0e21e 5459 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5460# else
5461# ifdef PWCOMMENT
a0d0e21e 5462 sv_setpv(sv, pwent->pw_comment);
1883634f 5463# endif
6ee623d5 5464# endif
6ee623d5 5465
3280af22 5466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5467# ifdef PWGECOS
a0d0e21e 5468 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5469# endif
5470# ifndef INCOMPLETE_TAINTS
d2719217 5471 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5472 SvTAINTED_on(sv);
1883634f 5473# endif
6ee623d5 5474
3280af22 5475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5476 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5477
3280af22 5478 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5479 sv_setpv(sv, pwent->pw_shell);
1883634f 5480# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5481 /* pw_shell is tainted because user himself can diddle with it. */
5482 SvTAINTED_on(sv);
1883634f 5483# endif
6ee623d5 5484
1883634f 5485# ifdef PWEXPIRE
6b88bc9c 5486 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5487 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5488# endif
a0d0e21e
LW		 5489 }
5490 RETURN;
5491#else
cea2e8a9 5492 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5493#endif
5494}
5495
5496PP(pp_spwent)
5497{
d493b042 5498#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5499 dSP;
a0d0e21e
LW		 5500 setpwent();
5501 RETPUSHYES;
5502#else
cea2e8a9 5503 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5504#endif
5505}
5506
5507PP(pp_epwent)
5508{
28e8609d 5509#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5510 dSP;
a0d0e21e
LW		 5511 endpwent();
5512 RETPUSHYES;
5513#else
cea2e8a9 5514 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5515#endif
5516}
5517
5518PP(pp_ggrnam)
5519{
5520#ifdef HAS_GROUP
cea2e8a9 5521 return pp_ggrent();
a0d0e21e 5522#else
cea2e8a9 5523 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5524#endif
5525}
5526
5527PP(pp_ggrgid)
5528{
5529#ifdef HAS_GROUP
cea2e8a9 5530 return pp_ggrent();
a0d0e21e 5531#else
cea2e8a9 5532 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5533#endif
5534}
5535
5536PP(pp_ggrent)
5537{
0994c4d0 5538#ifdef HAS_GROUP
9cad6237 5539 dSP;
533c011a 5540 I32 which = PL_op->op_type;
a0d0e21e
LW		 5541 register char **elem;
5542 register SV *sv;
5543 struct group *grent;
2d8e6c8d 5544 STRLEN n_a;
a0d0e21e 5545
edd309b7
JH		 5546 if (which == OP_GGRNAM) {
5547 char* name = POPpbytex;
5548 grent = (struct group *)getgrnam(name);
5549 }
5550 else if (which == OP_GGRGID) {
5551 Gid_t gid = POPi;
5552 grent = (struct group *)getgrgid(gid);
5553 }
a0d0e21e 5554 else
0994c4d0 5555#ifdef HAS_GETGRENT
a0d0e21e 5556 grent = (struct group *)getgrent();
0994c4d0
JH		 5557#else
5558 DIE(aTHX_ PL_no_func, "getgrent");
5559#endif
a0d0e21e
LW		 5560
5561 EXTEND(SP, 4);
5562 if (GIMME != G_ARRAY) {
5563 PUSHs(sv = sv_newmortal());
5564 if (grent) {
5565 if (which == OP_GGRNAM)
1e422769 5566 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5567 else
5568 sv_setpv(sv, grent->gr_name);
5569 }
5570 RETURN;
5571 }
5572
5573 if (grent) {
3280af22 5574 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5575 sv_setpv(sv, grent->gr_name);
28e8609d 5576
3280af22 5577 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5578#ifdef GRPASSWD
a0d0e21e 5579 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5580#endif
5581
3280af22 5582 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5583 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5584
5b56e7c5 5585#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5586 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5587 /* In UNICOS/mk (_CRAYMPP) the multithreading
5588 * versions (getgrnam_r, getgrgid_r)
5589 * seem to return an illegal pointer
5590 * as the group members list, gr_mem.
5591 * getgrent() doesn't even have a _r version
5592 * but the gr_mem is poisonous anyway.
5593 * So yes, you cannot get the list of group
5594 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5595 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5596 sv_catpv(sv, *elem);
5597 if (elem[1])
5598 sv_catpvn(sv, " ", 1);
5599 }
3d7e8424 5600#endif
a0d0e21e
LW		 5601 }
5602
5603 RETURN;
5604#else
cea2e8a9 5605 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5606#endif
5607}
5608
5609PP(pp_sgrent)
5610{
28e8609d 5611#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5612 dSP;
a0d0e21e
LW		 5613 setgrent();
5614 RETPUSHYES;
5615#else
cea2e8a9 5616 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5617#endif
5618}
5619
5620PP(pp_egrent)
5621{
28e8609d 5622#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5623 dSP;
a0d0e21e
LW		 5624 endgrent();
5625 RETPUSHYES;
5626#else
cea2e8a9 5627 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5628#endif
5629}
5630
5631PP(pp_getlogin)
5632{
a0d0e21e 5633#ifdef HAS_GETLOGIN
9cad6237 5634 dSP; dTARGET;
a0d0e21e
LW		 5635 char *tmps;
5636 EXTEND(SP, 1);
76e3520e 5637 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5638 RETPUSHUNDEF;
5639 PUSHp(tmps, strlen(tmps));
5640 RETURN;
5641#else
cea2e8a9 5642 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5643#endif
5644}
5645
5646/* Miscellaneous. */
5647
5648PP(pp_syscall)
5649{
d2719217 5650#ifdef HAS_SYSCALL
39644a26 5651 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5652 register I32 items = SP - MARK;
5653 unsigned long a[20];
5654 register I32 i = 0;
5655 I32 retval = -1;
2d8e6c8d 5656 STRLEN n_a;
a0d0e21e 5657
3280af22 5658 if (PL_tainting) {
a0d0e21e 5659 while (++MARK <= SP) {
bbce6d69 5660 if (SvTAINTED(*MARK)) {
5661 TAINT;
5662 break;
5663 }
a0d0e21e
LW		 5664 }
5665 MARK = ORIGMARK;
5666 TAINT_PROPER("syscall");
5667 }
5668
5669 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5670 * or where sizeof(long) != sizeof(char*). But such machines will
5671 * not likely have syscall implemented either, so who cares?
5672 */
5673 while (++MARK <= SP) {
5674 if (SvNIOK(*MARK) || !i)
5675 a[i++] = SvIV(*MARK);
3280af22 5676 else if (*MARK == &PL_sv_undef)
748a9306 5677 a[i++] = 0;
301e8125 5678 else
2d8e6c8d 5679 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5680 if (i > 15)
5681 break;
5682 }
5683 switch (items) {
5684 default:
cea2e8a9 5685 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5686 case 0:
cea2e8a9 5687 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5688 case 1:
5689 retval = syscall(a[0]);
5690 break;
5691 case 2:
5692 retval = syscall(a[0],a[1]);
5693 break;
5694 case 3:
5695 retval = syscall(a[0],a[1],a[2]);
5696 break;
5697 case 4:
5698 retval = syscall(a[0],a[1],a[2],a[3]);
5699 break;
5700 case 5:
5701 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5702 break;
5703 case 6:
5704 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5705 break;
5706 case 7:
5707 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5708 break;
5709 case 8:
5710 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5711 break;
5712#ifdef atarist
5713 case 9:
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5715 break;
5716 case 10:
5717 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5718 break;
5719 case 11:
5720 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5721 a[10]);
5722 break;
5723 case 12:
5724 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5725 a[10],a[11]);
5726 break;
5727 case 13:
5728 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5729 a[10],a[11],a[12]);
5730 break;
5731 case 14:
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5733 a[10],a[11],a[12],a[13]);
5734 break;
5735#endif /* atarist */
5736 }
5737 SP = ORIGMARK;
5738 PUSHi(retval);
5739 RETURN;
5740#else
cea2e8a9 5741 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5742#endif
5743}
5744
ff68c719 5745#ifdef FCNTL_EMULATE_FLOCK
301e8125 5746
ff68c719 5747/* XXX Emulate flock() with fcntl().
5748 What's really needed is a good file locking module.
5749*/
5750
cea2e8a9
GS		 5751static int
5752fcntl_emulate_flock(int fd, int operation)
ff68c719 5753{
5754 struct flock flock;
301e8125 5755
ff68c719 5756 switch (operation & ~LOCK_NB) {
5757 case LOCK_SH:
5758 flock.l_type = F_RDLCK;
5759 break;
5760 case LOCK_EX:
5761 flock.l_type = F_WRLCK;
5762 break;
5763 case LOCK_UN:
5764 flock.l_type = F_UNLCK;
5765 break;
5766 default:
5767 errno = EINVAL;
5768 return -1;
5769 }
5770 flock.l_whence = SEEK_SET;
d9b3e12d 5771 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5772
ff68c719 5773 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5774}
5775
5776#endif /* FCNTL_EMULATE_FLOCK */
5777
5778#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5779
5780/* XXX Emulate flock() with lockf(). This is just to increase
5781 portability of scripts. The calls are not completely
5782 interchangeable. What's really needed is a good file
5783 locking module.
5784*/
5785
76c32331 5786/* The lockf() constants might have been defined in <unistd.h>.
5787 Unfortunately, <unistd.h> causes troubles on some mixed
5788 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5789
5790 Further, the lockf() constants aren't POSIX, so they might not be
5791 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5792 just stick in the SVID values and be done with it. Sigh.
5793*/
5794
5795# ifndef F_ULOCK
5796# define F_ULOCK 0 /* Unlock a previously locked region */
5797# endif
5798# ifndef F_LOCK
5799# define F_LOCK 1 /* Lock a region for exclusive use */
5800# endif
5801# ifndef F_TLOCK
5802# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5803# endif
5804# ifndef F_TEST
5805# define F_TEST 3 /* Test a region for other processes locks */
5806# endif
5807
cea2e8a9
GS		 5808static int
5809lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5810{
5811 int i;
84902520
TB		 5812 int save_errno;
5813 Off_t pos;
5814
5815 /* flock locks entire file so for lockf we need to do the same */
5816 save_errno = errno;
6ad3d225 5817 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5818 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5819 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5820 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5821 errno = save_errno;
5822
16d20bd9
AD		 5823 switch (operation) {
5824
5825 /* LOCK_SH - get a shared lock */
5826 case LOCK_SH:
5827 /* LOCK_EX - get an exclusive lock */
5828 case LOCK_EX:
5829 i = lockf (fd, F_LOCK, 0);
5830 break;
5831
5832 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5833 case LOCK_SH|LOCK_NB:
5834 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5835 case LOCK_EX|LOCK_NB:
5836 i = lockf (fd, F_TLOCK, 0);
5837 if (i == -1)
5838 if ((errno == EAGAIN) || (errno == EACCES))
5839 errno = EWOULDBLOCK;
5840 break;
5841
ff68c719 5842 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5843 case LOCK_UN:
ff68c719 5844 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5845 i = lockf (fd, F_ULOCK, 0);
5846 break;
5847
5848 /* Default - can't decipher operation */
5849 default:
5850 i = -1;
5851 errno = EINVAL;
5852 break;
5853 }
84902520
TB		 5854
5855 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5856 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5857
16d20bd9
AD		 5858 return (i);
5859}
ff68c719 5860
5861#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5862
5863/*
5864 * Local variables:
5865 * c-indentation-style: bsd
5866 * c-basic-offset: 4
5867 * indent-tabs-mode: t
5868 * End:
5869 *
edf815fd 5870 * vim: shiftwidth=4:
241d1a3b 5871*/
Unnamed repository; edit this file 'description' to name the repository.