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Replace Renew(SvPVX(...)...) with SvPV_renew, which avoids an LVALUE
[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) {
364 SvLEN_set(sv, SvCUR(sv)+1);
b7e9a5c2 365 SvPV_renew(sv, SvLEN(sv));
a0d0e21e 366 }
aa689395 367 SvTAINTED_on(sv);
a0d0e21e
LW		 368 }
369 }
6ad3d225 370 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 371 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 372 }
373 else {
f86702cc 374 STATUS_NATIVE_SET(-1);
54310121 375 if (gimme == G_SCALAR)
a0d0e21e
LW		 376 RETPUSHUNDEF;
377 }
378
379 RETURN;
380}
381
382PP(pp_glob)
383{
384 OP *result;
f5284f61
IZ		 385 tryAMAGICunTARGET(iter, -1);
386
71686f12
GS		 387 /* Note that we only ever get here if File::Glob fails to load
388 * without at the same time croaking, for some reason, or if
389 * perl was built with PERL_EXTERNAL_GLOB */
390
a0d0e21e 391 ENTER;
a0d0e21e 392
c90c0ff4 393#ifndef VMS
3280af22 394 if (PL_tainting) {
7bac28a0 395 /*
396 * The external globbing program may use things we can't control,
397 * so for security reasons we must assume the worst.
398 */
399 TAINT;
22c35a8c 400 taint_proper(PL_no_security, "glob");
7bac28a0 401 }
c90c0ff4 402#endif /* !VMS */
7bac28a0 403
3280af22
NIS		 404 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
405 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 406
3280af22 407 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 408 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 409#ifndef DOSISH
410#ifndef CSH
6b88bc9c 411 *SvPVX(PL_rs) = '\n';
a0d0e21e 412#endif /* !CSH */
55497cff 413#endif /* !DOSISH */
c07a80fd 414
a0d0e21e
LW		 415 result = do_readline();
416 LEAVE;
417 return result;
418}
419
a0d0e21e
LW		 420PP(pp_rcatline)
421{
146174a9 422 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 423 return do_readline();
424}
425
426PP(pp_warn)
427{
39644a26 428 dSP; dMARK;
06bf62c7 429 SV *tmpsv;
e1ec3a88 430 const char *tmps;
06bf62c7 431 STRLEN len;
a0d0e21e
LW		 432 if (SP - MARK != 1) {
433 dTARGET;
3280af22 434 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 435 tmpsv = TARG;
a0d0e21e
LW		 436 SP = MARK + 1;
437 }
438 else {
06bf62c7 439 tmpsv = TOPs;
a0d0e21e 440 }
06bf62c7 441 tmps = SvPV(tmpsv, len);
7b102d90 442 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 443 SV *error = ERRSV;
444 (void)SvUPGRADE(error, SVt_PV);
445 if (SvPOK(error) && SvCUR(error))
446 sv_catpv(error, "\t...caught");
06bf62c7
GS		 447 tmpsv = error;
448 tmps = SvPV(tmpsv, len);
a0d0e21e 449 }
06bf62c7
GS		 450 if (!tmps || !len)
451 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
452
cb50131a 453 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 454 RETSETYES;
455}
456
457PP(pp_die)
458{
39644a26 459 dSP; dMARK;
e1ec3a88 460 const char *tmps;
06bf62c7
GS		 461 SV *tmpsv;
462 STRLEN len;
463 bool multiarg = 0;
96e176bf
CL		 464#ifdef VMS
465 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
466#endif
a0d0e21e
LW		 467 if (SP - MARK != 1) {
468 dTARGET;
3280af22 469 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 470 tmpsv = TARG;
471 tmps = SvPV(tmpsv, len);
472 multiarg = 1;
a0d0e21e
LW		 473 SP = MARK + 1;
474 }
475 else {
4e6ea2c3 476 tmpsv = TOPs;
bf12611a 477 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 478 }
06bf62c7 479 if (!tmps || !len) {
4e6ea2c3
GS		 480 SV *error = ERRSV;
481 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 482 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
483 if (!multiarg)
4e6ea2c3 484 SvSetSV(error,tmpsv);
06bf62c7 485 else if (sv_isobject(error)) {
05423cc9
GS		 486 HV *stash = SvSTASH(SvRV(error));
487 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
488 if (gv) {
146174a9 489 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 490 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 491 EXTEND(SP, 3);
492 PUSHMARK(SP);
493 PUSHs(error);
494 PUSHs(file);
495 PUSHs(line);
496 PUTBACK;
864dbfa3
GS		 497 call_sv((SV*)GvCV(gv),
498 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 499 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 500 }
501 }
5df617be 502 DIE_NULL;
4e6ea2c3
GS		 503 }
504 else {
505 if (SvPOK(error) && SvCUR(error))
506 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 507 tmpsv = error;
508 tmps = SvPV(tmpsv, len);
4e6ea2c3 509 }
a0d0e21e 510 }
06bf62c7
GS		 511 if (!tmps || !len)
512 tmpsv = sv_2mortal(newSVpvn("Died", 4));
513
cb50131a 514 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 515}
516
517/* I/O. */
518
519PP(pp_open)
520{
39644a26 521 dSP;
a567e93b
NIS		 522 dMARK; dORIGMARK;
523 dTARGET;
a0d0e21e
LW		 524 GV *gv;
525 SV *sv;
5b468f54 526 IO *io;
a0d0e21e
LW		 527 char *tmps;
528 STRLEN len;
4592e6ca 529 MAGIC *mg;
a567e93b 530 bool ok;
a0d0e21e 531
a567e93b 532 gv = (GV *)*++MARK;
5f05dabc 533 if (!isGV(gv))
cea2e8a9 534 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 535 if ((io = GvIOp(gv)))
36477c24 536 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 537
5b468f54 538 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 539 /* Method's args are same as ours ... */
540 /* ... except handle is replaced by the object */
5b468f54 541 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 542 PUSHMARK(MARK);
4592e6ca
NIS		 543 PUTBACK;
544 ENTER;
864dbfa3 545 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 546 LEAVE;
547 SPAGAIN;
548 RETURN;
549 }
550
a567e93b
NIS		 551 if (MARK < SP) {
552 sv = *++MARK;
553 }
554 else {
555 sv = GvSV(gv);
556 }
557
a0d0e21e 558 tmps = SvPV(sv, len);
a567e93b
NIS		 559 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
560 SP = ORIGMARK;
561 if (ok)
3280af22
NIS		 562 PUSHi( (I32)PL_forkprocess );
563 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 564 PUSHi(0);
565 else
566 RETPUSHUNDEF;
567 RETURN;
568}
569
570PP(pp_close)
571{
39644a26 572 dSP;
a0d0e21e 573 GV *gv;
5b468f54 574 IO *io;
1d603a67 575 MAGIC *mg;
a0d0e21e
LW		 576
577 if (MAXARG == 0)
3280af22 578 gv = PL_defoutgv;
a0d0e21e
LW		 579 else
580 gv = (GV*)POPs;
1d603a67 581
5b468f54
AMS		 582 if (gv && (io = GvIO(gv))
583 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
584 {
1d603a67 585 PUSHMARK(SP);
5b468f54 586 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 587 PUTBACK;
588 ENTER;
864dbfa3 589 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 590 LEAVE;
591 SPAGAIN;
592 RETURN;
593 }
a0d0e21e 594 EXTEND(SP, 1);
54310121 595 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 596 RETURN;
597}
598
599PP(pp_pipe_op)
600{
a0d0e21e 601#ifdef HAS_PIPE
9cad6237 602 dSP;
a0d0e21e
LW		 603 GV *rgv;
604 GV *wgv;
605 register IO *rstio;
606 register IO *wstio;
607 int fd[2];
608
609 wgv = (GV*)POPs;
610 rgv = (GV*)POPs;
611
612 if (!rgv || !wgv)
613 goto badexit;
614
4633a7c4 615 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 616 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 617 rstio = GvIOn(rgv);
618 wstio = GvIOn(wgv);
619
620 if (IoIFP(rstio))
621 do_close(rgv, FALSE);
622 if (IoIFP(wstio))
623 do_close(wgv, FALSE);
624
6ad3d225 625 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 626 goto badexit;
627
460c8493
IZ		 628 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
629 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 630 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 631 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 632 IoTYPE(rstio) = IoTYPE_RDONLY;
633 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 634
635 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 636 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 637 else PerlLIO_close(fd[0]);
760ac839 638 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 639 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 640 goto badexit;
641 }
4771b018
GS		 642#if defined(HAS_FCNTL) && defined(F_SETFD)
643 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
644 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
645#endif
a0d0e21e
LW		 646 RETPUSHYES;
647
648badexit:
649 RETPUSHUNDEF;
650#else
cea2e8a9 651 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 652#endif
653}
654
655PP(pp_fileno)
656{
39644a26 657 dSP; dTARGET;
a0d0e21e
LW		 658 GV *gv;
659 IO *io;
760ac839 660 PerlIO *fp;
4592e6ca
NIS		 661 MAGIC *mg;
662
a0d0e21e
LW		 663 if (MAXARG < 1)
664 RETPUSHUNDEF;
665 gv = (GV*)POPs;
4592e6ca 666
5b468f54
AMS		 667 if (gv && (io = GvIO(gv))
668 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
669 {
4592e6ca 670 PUSHMARK(SP);
5b468f54 671 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 672 PUTBACK;
673 ENTER;
864dbfa3 674 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 675 LEAVE;
676 SPAGAIN;
677 RETURN;
678 }
679
c289d2f7
JH		 680 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
681 /* Can't do this because people seem to do things like
682 defined(fileno($foo)) to check whether $foo is a valid fh.
683 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
684 report_evil_fh(gv, io, PL_op->op_type);
685 */
a0d0e21e 686 RETPUSHUNDEF;
c289d2f7
JH		 687 }
688
760ac839 689 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 690 RETURN;
691}
692
693PP(pp_umask)
694{
39644a26 695 dSP; dTARGET;
d7e492a4 696#ifdef HAS_UMASK
761237fe 697 Mode_t anum;
a0d0e21e 698
a0d0e21e 699 if (MAXARG < 1) {
6ad3d225
GS		 700 anum = PerlLIO_umask(0);
701 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 702 }
703 else
6ad3d225 704 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 705 TAINT_PROPER("umask");
706 XPUSHi(anum);
707#else
eec2d3df
GS		 708 /* Only DIE if trying to restrict permissions on `user' (self).
709 * Otherwise it's harmless and more useful to just return undef
710 * since 'group' and 'other' concepts probably don't exist here. */
711 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 712 DIE(aTHX_ "umask not implemented");
6b88bc9c 713 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 714#endif
715 RETURN;
716}
717
718PP(pp_binmode)
719{
39644a26 720 dSP;
a0d0e21e
LW		 721 GV *gv;
722 IO *io;
760ac839 723 PerlIO *fp;
4592e6ca 724 MAGIC *mg;
16fe6d59 725 SV *discp = Nullsv;
a0d0e21e
LW		 726
727 if (MAXARG < 1)
728 RETPUSHUNDEF;
60382766 729 if (MAXARG > 1) {
16fe6d59 730 discp = POPs;
60382766 731 }
a0d0e21e 732
301e8125 733 gv = (GV*)POPs;
4592e6ca 734
5b468f54
AMS		 735 if (gv && (io = GvIO(gv))
736 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
737 {
4592e6ca 738 PUSHMARK(SP);
5b468f54 739 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 740 if (discp)
741 XPUSHs(discp);
4592e6ca
NIS		 742 PUTBACK;
743 ENTER;
864dbfa3 744 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 745 LEAVE;
746 SPAGAIN;
747 RETURN;
748 }
a0d0e21e
LW		 749
750 EXTEND(SP, 1);
50f846a7 751 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 752 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
753 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 754 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 755 RETPUSHUNDEF;
756 }
a0d0e21e 757
40d98b49 758 PUTBACK;
60382766 759 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 760 (discp) ? SvPV_nolen(discp) : Nullch)) {
38af81ff
JH		 761 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
762 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
763 mode_from_discipline(discp),
764 (discp) ? SvPV_nolen(discp) : Nullch)) {
765 SPAGAIN;
766 RETPUSHUNDEF;
767 }
768 }
40d98b49 769 SPAGAIN;
a0d0e21e 770 RETPUSHYES;
40d98b49
JH		 771 }
772 else {
773 SPAGAIN;
a0d0e21e 774 RETPUSHUNDEF;
40d98b49 775 }
a0d0e21e
LW		 776}
777
778PP(pp_tie)
779{
39644a26 780 dSP;
e336de0d 781 dMARK;
a0d0e21e
LW		 782 SV *varsv;
783 HV* stash;
784 GV *gv;
a0d0e21e 785 SV *sv;
3280af22 786 I32 markoff = MARK - PL_stack_base;
e1ec3a88 787 const char *methname;
14befaf4 788 int how = PERL_MAGIC_tied;
e336de0d 789 U32 items;
a0d0e21e 790
e336de0d 791 varsv = *++MARK;
6b05c17a
NIS		 792 switch(SvTYPE(varsv)) {
793 case SVt_PVHV:
794 methname = "TIEHASH";
03c6e78a 795 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 796 break;
797 case SVt_PVAV:
798 methname = "TIEARRAY";
799 break;
800 case SVt_PVGV:
7fb37951
AMS		 801#ifdef GV_UNIQUE_CHECK
802 if (GvUNIQUE((GV*)varsv)) {
803 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 804 }
805#endif
6b05c17a 806 methname = "TIEHANDLE";
14befaf4 807 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 808 /* For tied filehandles, we apply tiedscalar magic to the IO
809 slot of the GP rather than the GV itself. AMS 20010812 */
810 if (!GvIOp(varsv))
811 GvIOp(varsv) = newIO();
812 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 813 break;
814 default:
815 methname = "TIESCALAR";
14befaf4 816 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 817 break;
818 }
e336de0d
GS		 819 items = SP - MARK++;
820 if (sv_isobject(*MARK)) {
6b05c17a 821 ENTER;
e788e7d3 822 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 823 PUSHMARK(SP);
eb160463 824 EXTEND(SP,(I32)items);
e336de0d
GS		 825 while (items--)
826 PUSHs(*MARK++);
827 PUTBACK;
864dbfa3 828 call_method(methname, G_SCALAR);
301e8125 829 }
6b05c17a 830 else {
864dbfa3 831 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 832 * perhaps to get different error message ?
833 */
e336de0d 834 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 835 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 836 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
837 methname, *MARK);
6b05c17a
NIS		 838 }
839 ENTER;
e788e7d3 840 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 841 PUSHMARK(SP);
eb160463 842 EXTEND(SP,(I32)items);
e336de0d
GS		 843 while (items--)
844 PUSHs(*MARK++);
845 PUTBACK;
864dbfa3 846 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 847 }
a0d0e21e
LW		 848 SPAGAIN;
849
850 sv = TOPs;
d3acc0f7 851 POPSTACK;
a0d0e21e 852 if (sv_isobject(sv)) {
33c27489 853 sv_unmagic(varsv, how);
ae21d580 854 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 855 if (varsv == SvRV(sv) &&
d87ebaca
YST		 856 (SvTYPE(varsv) == SVt_PVAV ||
857 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 858 Perl_croak(aTHX_
859 "Self-ties of arrays and hashes are not supported");
d87ebaca 860 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 861 }
862 LEAVE;
3280af22 863 SP = PL_stack_base + markoff;
a0d0e21e
LW		 864 PUSHs(sv);
865 RETURN;
866}
867
868PP(pp_untie)
869{
39644a26 870 dSP;
5b468f54 871 MAGIC *mg;
33c27489 872 SV *sv = POPs;
14befaf4
DM		 873 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
874 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 875
5b468f54
AMS		 876 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
877 RETPUSHYES;
878
65eba18f
JH		 879 if ((mg = SvTIED_mg(sv, how))) {
880 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 881 GV *gv;
882 CV *cv = NULL;
fa2b88e0
JS		 883 if (obj) {
884 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
885 isGV(gv) && (cv = GvCV(gv))) {
886 PUSHMARK(SP);
887 XPUSHs(SvTIED_obj((SV*)gv, mg));
888 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
889 PUTBACK;
890 ENTER;
891 call_sv((SV *)cv, G_VOID);
892 LEAVE;
893 SPAGAIN;
894 }
895 else if (ckWARN(WARN_UNTIE)) {
896 if (mg && SvREFCNT(obj) > 1)
9014280d 897 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 898 "untie attempted while %"UVuf" inner references still exist",
899 (UV)SvREFCNT(obj) - 1 ) ;
900 }
cbdc8872 901 }
902 }
38193a09 903 sv_unmagic(sv, how) ;
55497cff 904 RETPUSHYES;
a0d0e21e
LW		 905}
906
c07a80fd 907PP(pp_tied)
908{
39644a26 909 dSP;
5b468f54 910 MAGIC *mg;
33c27489 911 SV *sv = POPs;
14befaf4
DM		 912 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
913 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 914
915 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
916 RETPUSHUNDEF;
c07a80fd 917
155aba94 918 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 919 SV *osv = SvTIED_obj(sv, mg);
920 if (osv == mg->mg_obj)
921 osv = sv_mortalcopy(osv);
922 PUSHs(osv);
923 RETURN;
c07a80fd 924 }
c07a80fd 925 RETPUSHUNDEF;
926}
927
a0d0e21e
LW		 928PP(pp_dbmopen)
929{
39644a26 930 dSP;
a0d0e21e
LW		 931 HV *hv;
932 dPOPPOPssrl;
933 HV* stash;
934 GV *gv;
a0d0e21e
LW		 935 SV *sv;
936
937 hv = (HV*)POPs;
938
3280af22 939 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 940 sv_setpv(sv, "AnyDBM_File");
941 stash = gv_stashsv(sv, FALSE);
8ebc5c01 942 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 943 PUTBACK;
864dbfa3 944 require_pv("AnyDBM_File.pm");
a0d0e21e 945 SPAGAIN;
8ebc5c01 946 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 947 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 948 }
949
57d3b86d 950 ENTER;
924508f0 951 PUSHMARK(SP);
6b05c17a 952
924508f0 953 EXTEND(SP, 5);
a0d0e21e
LW		 954 PUSHs(sv);
955 PUSHs(left);
956 if (SvIV(right))
b448e4fe 957 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 958 else
b448e4fe 959 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 960 PUSHs(right);
57d3b86d 961 PUTBACK;
864dbfa3 962 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 963 SPAGAIN;
964
965 if (!sv_isobject(TOPs)) {
924508f0
GS		 966 SP--;
967 PUSHMARK(SP);
a0d0e21e
LW		 968 PUSHs(sv);
969 PUSHs(left);
b448e4fe 970 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 971 PUSHs(right);
a0d0e21e 972 PUTBACK;
864dbfa3 973 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 974 SPAGAIN;
975 }
976
6b05c17a 977 if (sv_isobject(TOPs)) {
14befaf4
DM		 978 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
979 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 980 }
a0d0e21e
LW		 981 LEAVE;
982 RETURN;
983}
984
985PP(pp_dbmclose)
986{
cea2e8a9 987 return pp_untie();
a0d0e21e
LW		 988}
989
990PP(pp_sselect)
991{
a0d0e21e 992#ifdef HAS_SELECT
9cad6237 993 dSP; dTARGET;
a0d0e21e
LW		 994 register I32 i;
995 register I32 j;
996 register char *s;
997 register SV *sv;
65202027 998 NV value;
a0d0e21e
LW		 999 I32 maxlen = 0;
1000 I32 nfound;
1001 struct timeval timebuf;
1002 struct timeval *tbuf = &timebuf;
1003 I32 growsize;
1004 char *fd_sets[4];
2d8e6c8d 1005 STRLEN n_a;
a0d0e21e
LW		 1006#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1007 I32 masksize;
1008 I32 offset;
1009 I32 k;
1010
1011# if BYTEORDER & 0xf0000
1012# define ORDERBYTE (0x88888888 - BYTEORDER)
1013# else
1014# define ORDERBYTE (0x4444 - BYTEORDER)
1015# endif
1016
1017#endif
1018
1019 SP -= 4;
1020 for (i = 1; i <= 3; i++) {
1021 if (!SvPOK(SP[i]))
1022 continue;
1023 j = SvCUR(SP[i]);
1024 if (maxlen < j)
1025 maxlen = j;
1026 }
1027
5ff3f7a4 1028/* little endians can use vecs directly */
e366b469 1029#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1030# ifdef NFDBITS
a0d0e21e 1031
5ff3f7a4
GS		 1032# ifndef NBBY
1033# define NBBY 8
1034# endif
a0d0e21e
LW		 1035
1036 masksize = NFDBITS / NBBY;
5ff3f7a4 1037# else
a0d0e21e 1038 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1039# endif
a0d0e21e
LW		 1040 Zero(&fd_sets[0], 4, char*);
1041#endif
1042
ad517f75
MHM		 1043# if SELECT_MIN_BITS == 1
1044 growsize = sizeof(fd_set);
1045# else
1046# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1047# undef SELECT_MIN_BITS
1048# define SELECT_MIN_BITS __FD_SETSIZE
1049# endif
e366b469
PG		 1050 /* If SELECT_MIN_BITS is greater than one we most probably will want
1051 * to align the sizes with SELECT_MIN_BITS/8 because for example
1052 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1053 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1054 * on (sets/tests/clears bits) is 32 bits. */
1055 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1056# endif
1057
a0d0e21e
LW		 1058 sv = SP[4];
1059 if (SvOK(sv)) {
1060 value = SvNV(sv);
1061 if (value < 0.0)
1062 value = 0.0;
1063 timebuf.tv_sec = (long)value;
65202027 1064 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1065 timebuf.tv_usec = (long)(value * 1000000.0);
1066 }
1067 else
1068 tbuf = Null(struct timeval*);
1069
1070 for (i = 1; i <= 3; i++) {
1071 sv = SP[i];
1072 if (!SvOK(sv)) {
1073 fd_sets[i] = 0;
1074 continue;
1075 }
1076 else if (!SvPOK(sv))
2d8e6c8d 1077 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1078 j = SvLEN(sv);
1079 if (j < growsize) {
1080 Sv_Grow(sv, growsize);
a0d0e21e 1081 }
c07a80fd 1082 j = SvCUR(sv);
1083 s = SvPVX(sv) + j;
1084 while (++j <= growsize) {
1085 *s++ = '\0';
1086 }
1087
a0d0e21e
LW		 1088#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1089 s = SvPVX(sv);
1090 New(403, fd_sets[i], growsize, char);
1091 for (offset = 0; offset < growsize; offset += masksize) {
1092 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1093 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1094 }
1095#else
1096 fd_sets[i] = SvPVX(sv);
1097#endif
1098 }
1099
dc4c69d9
JH		 1100#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1101 /* Can't make just the (void*) conditional because that would be
1102 * cpp #if within cpp macro, and not all compilers like that. */
1103 nfound = PerlSock_select(
1104 maxlen * 8,
1105 (Select_fd_set_t) fd_sets[1],
1106 (Select_fd_set_t) fd_sets[2],
1107 (Select_fd_set_t) fd_sets[3],
1108 (void*) tbuf); /* Workaround for compiler bug. */
1109#else
6ad3d225 1110 nfound = PerlSock_select(
a0d0e21e
LW		 1111 maxlen * 8,
1112 (Select_fd_set_t) fd_sets[1],
1113 (Select_fd_set_t) fd_sets[2],
1114 (Select_fd_set_t) fd_sets[3],
1115 tbuf);
dc4c69d9 1116#endif
a0d0e21e
LW		 1117 for (i = 1; i <= 3; i++) {
1118 if (fd_sets[i]) {
1119 sv = SP[i];
1120#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1121 s = SvPVX(sv);
1122 for (offset = 0; offset < growsize; offset += masksize) {
1123 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1124 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1125 }
1126 Safefree(fd_sets[i]);
1127#endif
1128 SvSETMAGIC(sv);
1129 }
1130 }
1131
5c477709
RGS		 1132 if (nfound == -1)
1133 PUSHs(&PL_sv_undef);
1134 else
1135 PUSHi(nfound);
a0d0e21e 1136 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1137 value = (NV)(timebuf.tv_sec) +
1138 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1139 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1140 sv_setnv(sv, value);
1141 }
1142 RETURN;
1143#else
cea2e8a9 1144 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1145#endif
1146}
1147
4633a7c4 1148void
864dbfa3 1149Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1150{
1151 if (gv)
1152 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1153 if (PL_defoutgv)
1154 SvREFCNT_dec(PL_defoutgv);
1155 PL_defoutgv = gv;
4633a7c4
LW		 1156}
1157
a0d0e21e
LW		 1158PP(pp_select)
1159{
39644a26 1160 dSP; dTARGET;
4633a7c4
LW		 1161 GV *newdefout, *egv;
1162 HV *hv;
1163
533c011a 1164 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1165
3280af22 1166 egv = GvEGV(PL_defoutgv);
4633a7c4 1167 if (!egv)
3280af22 1168 egv = PL_defoutgv;
4633a7c4
LW		 1169 hv = GvSTASH(egv);
1170 if (! hv)
3280af22 1171 XPUSHs(&PL_sv_undef);
4633a7c4 1172 else {
cbdc8872 1173 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1174 if (gvp && *gvp == egv) {
f7aaccc2 1175 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1176 XPUSHTARG;
1177 }
1178 else {
1179 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1180 }
4633a7c4
LW		 1181 }
1182
1183 if (newdefout) {
ded8aa31
GS		 1184 if (!GvIO(newdefout))
1185 gv_IOadd(newdefout);
4633a7c4
LW		 1186 setdefout(newdefout);
1187 }
1188
a0d0e21e
LW		 1189 RETURN;
1190}
1191
1192PP(pp_getc)
1193{
39644a26 1194 dSP; dTARGET;
a0d0e21e 1195 GV *gv;
90133b69 1196 IO *io = NULL;
2ae324a7 1197 MAGIC *mg;
a0d0e21e 1198
32da55ab 1199 if (MAXARG == 0)
3280af22 1200 gv = PL_stdingv;
a0d0e21e
LW		 1201 else
1202 gv = (GV*)POPs;
2ae324a7 1203
5b468f54
AMS		 1204 if (gv && (io = GvIO(gv))
1205 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1206 {
54310121 1207 I32 gimme = GIMME_V;
2ae324a7 1208 PUSHMARK(SP);
5b468f54 1209 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1210 PUTBACK;
1211 ENTER;
864dbfa3 1212 call_method("GETC", gimme);
2ae324a7 1213 LEAVE;
1214 SPAGAIN;
54310121 1215 if (gimme == G_SCALAR)
1216 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1217 RETURN;
1218 }
90133b69 1219 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1220 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1221 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1222 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1223 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1224 RETPUSHUNDEF;
90133b69 1225 }
bbce6d69 1226 TAINT;
a0d0e21e 1227 sv_setpv(TARG, " ");
9bc64814 1228 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1229 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1230 /* Find out how many bytes the char needs */
1231 Size_t len = UTF8SKIP(SvPVX(TARG));
1232 if (len > 1) {
1233 SvGROW(TARG,len+1);
1234 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1235 SvCUR_set(TARG,1+len);
1236 }
1237 SvUTF8_on(TARG);
1238 }
a0d0e21e
LW		 1239 PUSHTARG;
1240 RETURN;
1241}
1242
1243PP(pp_read)
1244{
cea2e8a9 1245 return pp_sysread();
a0d0e21e
LW		 1246}
1247
76e3520e 1248STATIC OP *
cea2e8a9 1249S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1250{
c09156bb 1251 register PERL_CONTEXT *cx;
54310121 1252 I32 gimme = GIMME_V;
a0d0e21e
LW		 1253
1254 ENTER;
1255 SAVETMPS;
1256
146174a9 1257 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1258 PUSHFORMAT(cx);
f39bc417 1259 cx->blk_sub.retop = retop;
dd2155a4 1260 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1261
4633a7c4 1262 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1263 return CvSTART(cv);
1264}
1265
1266PP(pp_enterwrite)
1267{
39644a26 1268 dSP;
a0d0e21e
LW		 1269 register GV *gv;
1270 register IO *io;
1271 GV *fgv;
1272 CV *cv;
1273
1274 if (MAXARG == 0)
3280af22 1275 gv = PL_defoutgv;
a0d0e21e
LW		 1276 else {
1277 gv = (GV*)POPs;
1278 if (!gv)
3280af22 1279 gv = PL_defoutgv;
a0d0e21e
LW		 1280 }
1281 EXTEND(SP, 1);
1282 io = GvIO(gv);
1283 if (!io) {
1284 RETPUSHNO;
1285 }
1286 if (IoFMT_GV(io))
1287 fgv = IoFMT_GV(io);
1288 else
1289 fgv = gv;
1290
1291 cv = GvFORM(fgv);
a0d0e21e 1292 if (!cv) {
2dd78f96 1293 char *name = NULL;
a0d0e21e 1294 if (fgv) {
748a9306 1295 SV *tmpsv = sv_newmortal();
43693395 1296 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1297 name = SvPV_nolen(tmpsv);
a0d0e21e 1298 }
2dd78f96
JH		 1299 if (name && *name)
1300 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1301 DIE(aTHX_ "Not a format reference");
a0d0e21e 1302 }
44a8e56a 1303 if (CvCLONE(cv))
1304 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1305
44a8e56a 1306 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1307 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1308}
1309
1310PP(pp_leavewrite)
1311{
39644a26 1312 dSP;
a0d0e21e
LW		 1313 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1314 register IO *io = GvIOp(gv);
760ac839
LW		 1315 PerlIO *ofp = IoOFP(io);
1316 PerlIO *fp;
a0d0e21e
LW		 1317 SV **newsp;
1318 I32 gimme;
c09156bb 1319 register PERL_CONTEXT *cx;
a0d0e21e 1320
760ac839 1321 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1322 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1323 if (!io || !ofp)
1324 goto forget_top;
3280af22
NIS		 1325 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1326 PL_formtarget != PL_toptarget)
a0d0e21e 1327 {
4633a7c4
LW		 1328 GV *fgv;
1329 CV *cv;
a0d0e21e
LW		 1330 if (!IoTOP_GV(io)) {
1331 GV *topgv;
46fc3d4c 1332 SV *topname;
a0d0e21e
LW		 1333
1334 if (!IoTOP_NAME(io)) {
1335 if (!IoFMT_NAME(io))
1336 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1337 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1338 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1339 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1340 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1341 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1342 else
ff5bdd37 1343 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1344 }
1345 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1346 if (!topgv || !GvFORM(topgv)) {
b929a54b 1347 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1348 goto forget_top;
1349 }
1350 IoTOP_GV(io) = topgv;
1351 }
748a9306
LW		 1352 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1353 I32 lines = IoLINES_LEFT(io);
3280af22 1354 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1355 if (lines <= 0) /* Yow, header didn't even fit!!! */
1356 goto forget_top;
748a9306
LW		 1357 while (lines-- > 0) {
1358 s = strchr(s, '\n');
1359 if (!s)
1360 break;
1361 s++;
1362 }
1363 if (s) {
d75029d0
NIS		 1364 STRLEN save = SvCUR(PL_formtarget);
1365 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1366 do_print(PL_formtarget, ofp);
1367 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1368 sv_chop(PL_formtarget, s);
1369 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1370 }
1371 }
a0d0e21e 1372 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1373 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1374 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1375 IoPAGE(io)++;
3280af22 1376 PL_formtarget = PL_toptarget;
748a9306 1377 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1378 fgv = IoTOP_GV(io);
1379 if (!fgv)
cea2e8a9 1380 DIE(aTHX_ "bad top format reference");
4633a7c4 1381 cv = GvFORM(fgv);
2dd78f96
JH		 1382 {
1383 char *name = NULL;
1384 if (!cv) {
1385 SV *sv = sv_newmortal();
1386 gv_efullname4(sv, fgv, Nullch, FALSE);
1387 name = SvPV_nolen(sv);
1388 }
1389 if (name && *name)
1390 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1391 /* why no:
1392 else
1393 DIE(aTHX_ "Undefined top format called");
1394 ?*/
4633a7c4 1395 }
44a8e56a 1396 if (CvCLONE(cv))
1397 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1398 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1399 }
1400
1401 forget_top:
3280af22 1402 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1403 POPFORMAT(cx);
1404 LEAVE;
1405
1406 fp = IoOFP(io);
1407 if (!fp) {
599cee73 1408 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1409 if (IoIFP(io))
1410 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1411 else if (ckWARN(WARN_CLOSED))
bc37a18f 1412 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1413 }
3280af22 1414 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1415 }
1416 else {
3280af22 1417 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1418 if (ckWARN(WARN_IO))
9014280d 1419 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1420 }
d75029d0 1421 if (!do_print(PL_formtarget, fp))
3280af22 1422 PUSHs(&PL_sv_no);
a0d0e21e 1423 else {
3280af22
NIS		 1424 FmLINES(PL_formtarget) = 0;
1425 SvCUR_set(PL_formtarget, 0);
1426 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1427 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1428 (void)PerlIO_flush(fp);
3280af22 1429 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1430 }
1431 }
9cbac4c7 1432 /* bad_ofp: */
3280af22 1433 PL_formtarget = PL_bodytarget;
a0d0e21e 1434 PUTBACK;
f39bc417 1435 return cx->blk_sub.retop;
a0d0e21e
LW		 1436}
1437
1438PP(pp_prtf)
1439{
39644a26 1440 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1441 GV *gv;
1442 IO *io;
760ac839 1443 PerlIO *fp;
26db47c4 1444 SV *sv;
46fc3d4c 1445 MAGIC *mg;
a0d0e21e 1446
533c011a 1447 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1448 gv = (GV*)*++MARK;
1449 else
3280af22 1450 gv = PL_defoutgv;
46fc3d4c 1451
5b468f54
AMS		 1452 if (gv && (io = GvIO(gv))
1453 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1454 {
46fc3d4c 1455 if (MARK == ORIGMARK) {
4352c267 1456 MEXTEND(SP, 1);
46fc3d4c 1457 ++MARK;
1458 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1459 ++SP;
1460 }
1461 PUSHMARK(MARK - 1);
5b468f54 1462 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1463 PUTBACK;
1464 ENTER;
864dbfa3 1465 call_method("PRINTF", G_SCALAR);
46fc3d4c 1466 LEAVE;
1467 SPAGAIN;
1468 MARK = ORIGMARK + 1;
1469 *MARK = *SP;
1470 SP = MARK;
1471 RETURN;
1472 }
1473
26db47c4 1474 sv = NEWSV(0,0);
a0d0e21e 1475 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1476 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1477 report_evil_fh(gv, io, PL_op->op_type);
93189314 1478 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1479 goto just_say_no;
1480 }
1481 else if (!(fp = IoOFP(io))) {
599cee73 1482 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1483 if (IoIFP(io))
1484 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1485 else if (ckWARN(WARN_CLOSED))
bc37a18f 1486 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1487 }
93189314 1488 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1489 goto just_say_no;
1490 }
1491 else {
1492 do_sprintf(sv, SP - MARK, MARK + 1);
1493 if (!do_print(sv, fp))
1494 goto just_say_no;
1495
1496 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1497 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1498 goto just_say_no;
1499 }
1500 SvREFCNT_dec(sv);
1501 SP = ORIGMARK;
3280af22 1502 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1503 RETURN;
1504
1505 just_say_no:
1506 SvREFCNT_dec(sv);
1507 SP = ORIGMARK;
3280af22 1508 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1509 RETURN;
1510}
1511
c07a80fd 1512PP(pp_sysopen)
1513{
39644a26 1514 dSP;
c07a80fd 1515 GV *gv;
c07a80fd 1516 SV *sv;
1517 char *tmps;
1518 STRLEN len;
1519 int mode, perm;
1520
1521 if (MAXARG > 3)
1522 perm = POPi;
1523 else
1524 perm = 0666;
1525 mode = POPi;
1526 sv = POPs;
1527 gv = (GV *)POPs;
1528
4592e6ca
NIS		 1529 /* Need TIEHANDLE method ? */
1530
c07a80fd 1531 tmps = SvPV(sv, len);
1532 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1533 IoLINES(GvIOp(gv)) = 0;
3280af22 1534 PUSHs(&PL_sv_yes);
c07a80fd 1535 }
1536 else {
3280af22 1537 PUSHs(&PL_sv_undef);
c07a80fd 1538 }
1539 RETURN;
1540}
1541
a0d0e21e
LW		 1542PP(pp_sysread)
1543{
39644a26 1544 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1545 int offset;
1546 GV *gv;
1547 IO *io;
1548 char *buffer;
5b54f415 1549 SSize_t length;
eb5c063a 1550 SSize_t count;
1e422769 1551 Sock_size_t bufsize;
748a9306 1552 SV *bufsv;
a0d0e21e 1553 STRLEN blen;
2ae324a7 1554 MAGIC *mg;
eb5c063a 1555 int fp_utf8;
1dd30107
NC		 1556 int buffer_utf8;
1557 SV *read_target;
eb5c063a
NIS		 1558 Size_t got = 0;
1559 Size_t wanted;
1d636c13 1560 bool charstart = FALSE;
87330c3c
JH		 1561 STRLEN charskip = 0;
1562 STRLEN skip = 0;
a0d0e21e
LW		 1563
1564 gv = (GV*)*++MARK;
5b468f54
AMS		 1565 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1566 && gv && (io = GvIO(gv))
1567 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1568 {
2ae324a7 1569 SV *sv;
1570
1571 PUSHMARK(MARK-1);
5b468f54 1572 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1573 ENTER;
864dbfa3 1574 call_method("READ", G_SCALAR);
2ae324a7 1575 LEAVE;
1576 SPAGAIN;
1577 sv = POPs;
1578 SP = ORIGMARK;
1579 PUSHs(sv);
1580 RETURN;
1581 }
1582
a0d0e21e
LW		 1583 if (!gv)
1584 goto say_undef;
748a9306 1585 bufsv = *++MARK;
ff68c719 1586 if (! SvOK(bufsv))
1587 sv_setpvn(bufsv, "", 0);
a0d0e21e 1588 length = SvIVx(*++MARK);
748a9306 1589 SETERRNO(0,0);
a0d0e21e
LW		 1590 if (MARK < SP)
1591 offset = SvIVx(*++MARK);
1592 else
1593 offset = 0;
1594 io = GvIO(gv);
b5fe5ca2
SR		 1595 if (!io || !IoIFP(io)) {
1596 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1597 report_evil_fh(gv, io, PL_op->op_type);
1598 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1599 goto say_undef;
b5fe5ca2 1600 }
0064a8a9 1601 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1602 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1603 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1604 SvUTF8_on(bufsv);
9b9d7ce8 1605 buffer_utf8 = 0;
7d59b7e4
NIS		 1606 }
1607 else {
1608 buffer = SvPV_force(bufsv, blen);
1dd30107 1609 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1610 }
1611 if (length < 0)
1612 DIE(aTHX_ "Negative length");
eb5c063a 1613 wanted = length;
7d59b7e4 1614
d0965105
JH		 1615 charstart = TRUE;
1616 charskip = 0;
87330c3c 1617 skip = 0;
d0965105 1618
a0d0e21e 1619#ifdef HAS_SOCKET
533c011a 1620 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1621 char namebuf[MAXPATHLEN];
17a8c7ba 1622#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1623 bufsize = sizeof (struct sockaddr_in);
1624#else
46fc3d4c 1625 bufsize = sizeof namebuf;
490ab354 1626#endif
abf95952
IZ		 1627#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1628 if (bufsize >= 256)
1629 bufsize = 255;
1630#endif
eb160463 1631 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1632 /* 'offset' means 'flags' here */
eb5c063a 1633 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1634 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1635 if (count < 0)
a0d0e21e 1636 RETPUSHUNDEF;
4107cc59
OF		 1637#ifdef EPOC
1638 /* Bogus return without padding */
1639 bufsize = sizeof (struct sockaddr_in);
1640#endif
eb5c063a 1641 SvCUR_set(bufsv, count);
748a9306
LW		 1642 *SvEND(bufsv) = '\0';
1643 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1644 if (fp_utf8)
1645 SvUTF8_on(bufsv);
748a9306 1646 SvSETMAGIC(bufsv);
aac0dd9a 1647 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1648 if (!(IoFLAGS(io) & IOf_UNTAINT))
1649 SvTAINTED_on(bufsv);
a0d0e21e 1650 SP = ORIGMARK;
46fc3d4c 1651 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1652 PUSHs(TARG);
1653 RETURN;
1654 }
1655#else
911d147d 1656 if (PL_op->op_type == OP_RECV)
cea2e8a9 1657 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1658#endif
eb5c063a
NIS		 1659 if (DO_UTF8(bufsv)) {
1660 /* offset adjust in characters not bytes */
1661 blen = sv_len_utf8(bufsv);
7d59b7e4 1662 }
bbce6d69 1663 if (offset < 0) {
eb160463 1664 if (-offset > (int)blen)
cea2e8a9 1665 DIE(aTHX_ "Offset outside string");
bbce6d69 1666 offset += blen;
1667 }
eb5c063a
NIS		 1668 if (DO_UTF8(bufsv)) {
1669 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1670 if (offset >= (int)blen)
1671 offset += SvCUR(bufsv) - blen;
1672 else
1673 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1674 }
1675 more_bytes:
cd52b7b2 1676 bufsize = SvCUR(bufsv);
1dd30107
NC		 1677 /* Allocating length + offset + 1 isn't perfect in the case of reading
1678 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1679 unduly.
1680 (should be 2 * length + offset + 1, or possibly something longer if
1681 PL_encoding is true) */
eb160463 1682 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1683 if (offset > bufsize) { /* Zero any newly allocated space */
1684 Zero(buffer+bufsize, offset-bufsize, char);
1685 }
eb5c063a 1686 buffer = buffer + offset;
1dd30107
NC		 1687 if (!buffer_utf8) {
1688 read_target = bufsv;
1689 } else {
1690 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1691 concatenate it to the current buffer. */
1692
1693 /* Truncate the existing buffer to the start of where we will be
1694 reading to: */
1695 SvCUR_set(bufsv, offset);
1696
1697 read_target = sv_newmortal();
1698 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1699 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1700 }
eb5c063a 1701
533c011a 1702 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1703#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1704 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1705 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1706 buffer, length, 0);
a7092146
GS		 1707 }
1708 else
1709#endif
1710 {
eb5c063a
NIS		 1711 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1712 buffer, length);
a7092146 1713 }
a0d0e21e
LW		 1714 }
1715 else
1716#ifdef HAS_SOCKET__bad_code_maybe
50952442 1717 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1718 char namebuf[MAXPATHLEN];
490ab354
JH		 1719#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1720 bufsize = sizeof (struct sockaddr_in);
1721#else
46fc3d4c 1722 bufsize = sizeof namebuf;
490ab354 1723#endif
eb5c063a 1724 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1725 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1726 }
1727 else
1728#endif
3b02c43c 1729 {
eb5c063a
NIS		 1730 count = PerlIO_read(IoIFP(io), buffer, length);
1731 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1732 if (count == 0 && PerlIO_error(IoIFP(io)))
1733 count = -1;
3b02c43c 1734 }
eb5c063a 1735 if (count < 0) {
a00b5bd3 1736 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1737 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1738 goto say_undef;
af8c498a 1739 }
1dd30107
NC		 1740 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1741 *SvEND(read_target) = '\0';
1742 (void)SvPOK_only(read_target);
0064a8a9 1743 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1744 /* Look at utf8 we got back and count the characters */
1745 char *bend = buffer + count;
1746 while (buffer < bend) {
d0965105
JH		 1747 if (charstart) {
1748 skip = UTF8SKIP(buffer);
1749 charskip = 0;
1750 }
1751 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1752 /* partial character - try for rest of it */
1753 length = skip - (bend-buffer);
1754 offset = bend - SvPVX(bufsv);
d0965105
JH		 1755 charstart = FALSE;
1756 charskip += count;
eb5c063a
NIS		 1757 goto more_bytes;
1758 }
1759 else {
1760 got++;
1761 buffer += skip;
d0965105
JH		 1762 charstart = TRUE;
1763 charskip = 0;
eb5c063a
NIS		 1764 }
1765 }
1766 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1767 provided amount read (count) was what was requested (length)
1768 */
1769 if (got < wanted && count == length) {
d0965105 1770 length = wanted - got;
eb5c063a
NIS		 1771 offset = bend - SvPVX(bufsv);
1772 goto more_bytes;
1773 }
1774 /* return value is character count */
1775 count = got;
1776 SvUTF8_on(bufsv);
1777 }
1dd30107
NC		 1778 else if (buffer_utf8) {
1779 /* Let svcatsv upgrade the bytes we read in to utf8.
1780 The buffer is a mortal so will be freed soon. */
1781 sv_catsv_nomg(bufsv, read_target);
1782 }
748a9306 1783 SvSETMAGIC(bufsv);
aac0dd9a 1784 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1785 if (!(IoFLAGS(io) & IOf_UNTAINT))
1786 SvTAINTED_on(bufsv);
a0d0e21e 1787 SP = ORIGMARK;
eb5c063a 1788 PUSHi(count);
a0d0e21e
LW		 1789 RETURN;
1790
1791 say_undef:
1792 SP = ORIGMARK;
1793 RETPUSHUNDEF;
1794}
1795
1796PP(pp_syswrite)
1797{
39644a26 1798 dSP;
092bebab
JH		 1799 int items = (SP - PL_stack_base) - TOPMARK;
1800 if (items == 2) {
9f089d78 1801 SV *sv;
092bebab 1802 EXTEND(SP, 1);
9f089d78
SB		 1803 sv = sv_2mortal(newSViv(sv_len(*SP)));
1804 PUSHs(sv);
092bebab
JH		 1805 PUTBACK;
1806 }
cea2e8a9 1807 return pp_send();
a0d0e21e
LW		 1808}
1809
1810PP(pp_send)
1811{
39644a26 1812 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1813 GV *gv;
1814 IO *io;
748a9306 1815 SV *bufsv;
a0d0e21e 1816 char *buffer;
8c99d73e
GS		 1817 Size_t length;
1818 SSize_t retval;
a0d0e21e 1819 STRLEN blen;
1d603a67 1820 MAGIC *mg;
a0d0e21e
LW		 1821
1822 gv = (GV*)*++MARK;
14befaf4 1823 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1824 && gv && (io = GvIO(gv))
1825 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1826 {
1d603a67
GB		 1827 SV *sv;
1828
1829 PUSHMARK(MARK-1);
5b468f54 1830 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1831 ENTER;
864dbfa3 1832 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1833 LEAVE;
1834 SPAGAIN;
1835 sv = POPs;
1836 SP = ORIGMARK;
1837 PUSHs(sv);
1838 RETURN;
1839 }
a0d0e21e
LW		 1840 if (!gv)
1841 goto say_undef;
748a9306 1842 bufsv = *++MARK;
8c99d73e 1843#if Size_t_size > IVSIZE
3c001241 1844 length = (Size_t)SvNVx(*++MARK);
146174a9 1845#else
3c001241 1846 length = (Size_t)SvIVx(*++MARK);
146174a9 1847#endif
3c001241 1848 if ((SSize_t)length < 0)
cea2e8a9 1849 DIE(aTHX_ "Negative length");
748a9306 1850 SETERRNO(0,0);
a0d0e21e
LW		 1851 io = GvIO(gv);
1852 if (!io || !IoIFP(io)) {
8c99d73e 1853 retval = -1;
bc37a18f
RG		 1854 if (ckWARN(WARN_CLOSED))
1855 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1856 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1857 goto say_undef;
1858 }
1859
1860 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1861 if (!SvUTF8(bufsv)) {
1862 bufsv = sv_2mortal(newSVsv(bufsv));
1863 buffer = sv_2pvutf8(bufsv, &blen);
1864 } else
1865 buffer = SvPV(bufsv, blen);
a0d0e21e 1866 }
7d59b7e4 1867 else {
4de5f5ca
JH		 1868 if (DO_UTF8(bufsv)) {
1869 /* Not modifying source SV, so making a temporary copy. */
1870 bufsv = sv_2mortal(newSVsv(bufsv));
1871 sv_utf8_downgrade(bufsv, FALSE);
1872 }
1873 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1874 }
1875
1876 if (PL_op->op_type == OP_SYSWRITE) {
1877 IV offset;
1878 if (DO_UTF8(bufsv)) {
1879 /* length and offset are in chars */
1880 blen = sv_len_utf8(bufsv);
1881 }
bbce6d69 1882 if (MARK < SP) {
a0d0e21e 1883 offset = SvIVx(*++MARK);
bbce6d69 1884 if (offset < 0) {
eb160463 1885 if (-offset > (IV)blen)
cea2e8a9 1886 DIE(aTHX_ "Offset outside string");
bbce6d69 1887 offset += blen;
eb160463 1888 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1889 DIE(aTHX_ "Offset outside string");
bbce6d69 1890 } else
a0d0e21e
LW		 1891 offset = 0;
1892 if (length > blen - offset)
1893 length = blen - offset;
7d59b7e4 1894 if (DO_UTF8(bufsv)) {
c8d31a35 1895 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1896 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1897 }
1898 else {
1899 buffer = buffer+offset;
1900 }
a7092146 1901#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1902 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1903 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1904 buffer, length, 0);
a7092146
GS		 1905 }
1906 else
1907#endif
1908 {
94e4c244 1909 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1910 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1911 buffer, length);
a7092146 1912 }
a0d0e21e
LW		 1913 }
1914#ifdef HAS_SOCKET
1915 else if (SP > MARK) {
1916 char *sockbuf;
1917 STRLEN mlen;
1918 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1919 /* length is really flags */
8c99d73e
GS		 1920 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1921 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1922 }
1923 else
7d59b7e4 1924 /* length is really flags */
8c99d73e 1925 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1926#else
1927 else
cea2e8a9 1928 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1929#endif
8c99d73e 1930 if (retval < 0)
a0d0e21e
LW		 1931 goto say_undef;
1932 SP = ORIGMARK;
f36eea10
JH		 1933 if (DO_UTF8(bufsv))
1934 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1935#if Size_t_size > IVSIZE
1936 PUSHn(retval);
1937#else
1938 PUSHi(retval);
1939#endif
a0d0e21e
LW		 1940 RETURN;
1941
1942 say_undef:
1943 SP = ORIGMARK;
1944 RETPUSHUNDEF;
1945}
1946
1947PP(pp_recv)
1948{
cea2e8a9 1949 return pp_sysread();
a0d0e21e
LW		 1950}
1951
1952PP(pp_eof)
1953{
39644a26 1954 dSP;
a0d0e21e 1955 GV *gv;
5b468f54 1956 IO *io;
4592e6ca 1957 MAGIC *mg;
a0d0e21e 1958
32da55ab 1959 if (MAXARG == 0) {
146174a9
CB		 1960 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1961 IO *io;
ed2c6b9b 1962 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1963 io = GvIO(gv);
1964 if (io && !IoIFP(io)) {
1965 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1966 IoLINES(io) = 0;
1967 IoFLAGS(io) &= ~IOf_START;
dd374669 1968 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1969 sv_setpvn(GvSV(gv), "-", 1);
1970 SvSETMAGIC(GvSV(gv));
1971 }
1972 else if (!nextargv(gv))
1973 RETPUSHYES;
1974 }
1975 }
1976 else
1977 gv = PL_last_in_gv; /* eof */
1978 }
a0d0e21e 1979 else
146174a9 1980 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1981
5b468f54
AMS		 1982 if (gv && (io = GvIO(gv))
1983 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1984 {
4592e6ca 1985 PUSHMARK(SP);
5b468f54 1986 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1987 PUTBACK;
1988 ENTER;
864dbfa3 1989 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1990 LEAVE;
1991 SPAGAIN;
1992 RETURN;
1993 }
1994
54310121 1995 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1996 RETURN;
1997}
1998
1999PP(pp_tell)
2000{
39644a26 2001 dSP; dTARGET;
301e8125 2002 GV *gv;
5b468f54 2003 IO *io;
4592e6ca 2004 MAGIC *mg;
a0d0e21e 2005
32da55ab 2006 if (MAXARG == 0)
3280af22 2007 gv = PL_last_in_gv;
a0d0e21e 2008 else
3280af22 2009 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2010
5b468f54
AMS		 2011 if (gv && (io = GvIO(gv))
2012 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2013 {
4592e6ca 2014 PUSHMARK(SP);
5b468f54 2015 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2016 PUTBACK;
2017 ENTER;
864dbfa3 2018 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2019 LEAVE;
2020 SPAGAIN;
2021 RETURN;
2022 }
2023
146174a9
CB		 2024#if LSEEKSIZE > IVSIZE
2025 PUSHn( do_tell(gv) );
2026#else
a0d0e21e 2027 PUSHi( do_tell(gv) );
146174a9 2028#endif
a0d0e21e
LW		 2029 RETURN;
2030}
2031
2032PP(pp_seek)
2033{
cea2e8a9 2034 return pp_sysseek();
137443ea 2035}
2036
2037PP(pp_sysseek)
2038{
39644a26 2039 dSP;
a0d0e21e 2040 GV *gv;
5b468f54 2041 IO *io;
a0d0e21e 2042 int whence = POPi;
146174a9
CB		 2043#if LSEEKSIZE > IVSIZE
2044 Off_t offset = (Off_t)SvNVx(POPs);
2045#else
d9b3e12d 2046 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2047#endif
4592e6ca 2048 MAGIC *mg;
a0d0e21e 2049
3280af22 2050 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2051
5b468f54
AMS		 2052 if (gv && (io = GvIO(gv))
2053 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2054 {
4592e6ca 2055 PUSHMARK(SP);
5b468f54 2056 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2057#if LSEEKSIZE > IVSIZE
2058 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2059#else
b448e4fe 2060 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2061#endif
b448e4fe 2062 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2063 PUTBACK;
2064 ENTER;
864dbfa3 2065 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2066 LEAVE;
2067 SPAGAIN;
2068 RETURN;
2069 }
2070
533c011a 2071 if (PL_op->op_type == OP_SEEK)
8903cb82 2072 PUSHs(boolSV(do_seek(gv, offset, whence)));
2073 else {
b448e4fe
JH		 2074 Off_t sought = do_sysseek(gv, offset, whence);
2075 if (sought < 0)
146174a9
CB		 2076 PUSHs(&PL_sv_undef);
2077 else {
b448e4fe 2078 SV* sv = sought ?
146174a9 2079#if LSEEKSIZE > IVSIZE
b448e4fe 2080 newSVnv((NV)sought)
146174a9 2081#else
b448e4fe 2082 newSViv(sought)
146174a9
CB		 2083#endif
2084 : newSVpvn(zero_but_true, ZBTLEN);
2085 PUSHs(sv_2mortal(sv));
2086 }
8903cb82 2087 }
a0d0e21e
LW		 2088 RETURN;
2089}
2090
2091PP(pp_truncate)
2092{
39644a26 2093 dSP;
8c99d73e
GS		 2094 /* There seems to be no consensus on the length type of truncate()
2095 * and ftruncate(), both off_t and size_t have supporters. In
2096 * general one would think that when using large files, off_t is
2097 * at least as wide as size_t, so using an off_t should be okay. */
2098 /* XXX Configure probe for the length type of *truncate() needed XXX */
2099 Off_t len;
a0d0e21e 2100
25342a55 2101#if Off_t_size > IVSIZE
8c99d73e
GS		 2102 len = (Off_t)POPn;
2103#else
2104 len = (Off_t)POPi;
2105#endif
2106 /* Checking for length < 0 is problematic as the type might or
301e8125 2107 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2108 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2109 SETERRNO(0,0);
d05c1ba0 2110 {
d05c1ba0
JH		 2111 int result = 1;
2112 GV *tmpgv;
090bf15b
SR		 2113 IO *io;
2114
d05c1ba0 2115 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2116 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2117
090bf15b
SR		 2118 do_ftruncate_gv:
2119 if (!GvIO(tmpgv))
2120 result = 0;
d05c1ba0 2121 else {
090bf15b
SR		 2122 PerlIO *fp;
2123 io = GvIOp(tmpgv);
2124 do_ftruncate_io:
2125 TAINT_PROPER("truncate");
2126 if (!(fp = IoIFP(io))) {
2127 result = 0;
2128 }
2129 else {
2130 PerlIO_flush(fp);
cbdc8872 2131#ifdef HAS_TRUNCATE
090bf15b 2132 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2133#else
090bf15b 2134 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2135#endif
090bf15b
SR		 2136 result = 0;
2137 }
d05c1ba0 2138 }
cbdc8872 2139 }
d05c1ba0
JH		 2140 else {
2141 SV *sv = POPs;
2142 char *name;
7a5fd60d
NC		 2143 STRLEN n_a;
2144
d05c1ba0
JH		 2145 if (SvTYPE(sv) == SVt_PVGV) {
2146 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2147 goto do_ftruncate_gv;
d05c1ba0
JH		 2148 }
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2150 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2151 goto do_ftruncate_gv;
2152 }
2153 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2154 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2155 goto do_ftruncate_io;
d05c1ba0 2156 }
1e422769 2157
d05c1ba0
JH		 2158 name = SvPV(sv, n_a);
2159 TAINT_PROPER("truncate");
cbdc8872 2160#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2161 if (truncate(name, len) < 0)
2162 result = 0;
cbdc8872 2163#else
d05c1ba0
JH		 2164 {
2165 int tmpfd;
2166
2167 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2168 result = 0;
d05c1ba0
JH		 2169 else {
2170 if (my_chsize(tmpfd, len) < 0)
2171 result = 0;
2172 PerlLIO_close(tmpfd);
2173 }
cbdc8872 2174 }
a0d0e21e 2175#endif
d05c1ba0 2176 }
a0d0e21e 2177
d05c1ba0
JH		 2178 if (result)
2179 RETPUSHYES;
2180 if (!errno)
93189314 2181 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2182 RETPUSHUNDEF;
2183 }
a0d0e21e
LW		 2184}
2185
2186PP(pp_fcntl)
2187{
cea2e8a9 2188 return pp_ioctl();
a0d0e21e
LW		 2189}
2190
2191PP(pp_ioctl)
2192{
39644a26 2193 dSP; dTARGET;
748a9306 2194 SV *argsv = POPs;
3bb7c1b4 2195 unsigned int func = POPu;
e1ec3a88 2196 const int optype = PL_op->op_type;
a0d0e21e 2197 char *s;
324aa91a 2198 IV retval;
a0d0e21e 2199 GV *gv = (GV*)POPs;
c289d2f7 2200 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2201
748a9306 2202 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2203 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2204 report_evil_fh(gv, io, PL_op->op_type);
93189314 2205 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2206 RETPUSHUNDEF;
2207 }
2208
748a9306 2209 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2210 STRLEN len;
324aa91a 2211 STRLEN need;
748a9306 2212 s = SvPV_force(argsv, len);
324aa91a
HF		 2213 need = IOCPARM_LEN(func);
2214 if (len < need) {
2215 s = Sv_Grow(argsv, need + 1);
2216 SvCUR_set(argsv, need);
a0d0e21e
LW		 2217 }
2218
748a9306 2219 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2220 }
2221 else {
748a9306 2222 retval = SvIV(argsv);
c529f79d 2223 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2224 }
2225
2226 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2227
2228 if (optype == OP_IOCTL)
2229#ifdef HAS_IOCTL
76e3520e 2230 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2231#else
cea2e8a9 2232 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2233#endif
2234 else
c214f4ad
WB		 2235#ifndef HAS_FCNTL
2236 DIE(aTHX_ "fcntl is not implemented");
2237#else
55497cff 2238#if defined(OS2) && defined(__EMX__)
760ac839 2239 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2240#else
760ac839 2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2242#endif
6652bd42 2243#endif
a0d0e21e 2244
6652bd42 2245#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2246 if (SvPOK(argsv)) {
2247 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2248 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2249 OP_NAME(PL_op));
748a9306
LW		 2250 s[SvCUR(argsv)] = 0; /* put our null back */
2251 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2252 }
2253
2254 if (retval == -1)
2255 RETPUSHUNDEF;
2256 if (retval != 0) {
2257 PUSHi(retval);
2258 }
2259 else {
8903cb82 2260 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2261 }
4808266b 2262#endif
c214f4ad 2263 RETURN;
a0d0e21e
LW		 2264}
2265
2266PP(pp_flock)
2267{
9cad6237 2268#ifdef FLOCK
39644a26 2269 dSP; dTARGET;
a0d0e21e
LW		 2270 I32 value;
2271 int argtype;
2272 GV *gv;
bc37a18f 2273 IO *io = NULL;
760ac839 2274 PerlIO *fp;
16d20bd9 2275
a0d0e21e 2276 argtype = POPi;
32da55ab 2277 if (MAXARG == 0)
3280af22 2278 gv = PL_last_in_gv;
a0d0e21e
LW		 2279 else
2280 gv = (GV*)POPs;
bc37a18f
RG		 2281 if (gv && (io = GvIO(gv)))
2282 fp = IoIFP(io);
2283 else {
a0d0e21e 2284 fp = Nullfp;
bc37a18f
RG		 2285 io = NULL;
2286 }
a0d0e21e 2287 if (fp) {
68dc0745 2288 (void)PerlIO_flush(fp);
76e3520e 2289 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2290 }
cb50131a 2291 else {
bc37a18f
RG		 2292 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2293 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2294 value = 0;
93189314 2295 SETERRNO(EBADF,RMS_IFI);
cb50131a 2296 }
a0d0e21e
LW		 2297 PUSHi(value);
2298 RETURN;
2299#else
cea2e8a9 2300 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2301#endif
2302}
2303
2304/* Sockets. */
2305
2306PP(pp_socket)
2307{
a0d0e21e 2308#ifdef HAS_SOCKET
9cad6237 2309 dSP;
a0d0e21e
LW		 2310 GV *gv;
2311 register IO *io;
2312 int protocol = POPi;
2313 int type = POPi;
2314 int domain = POPi;
2315 int fd;
2316
2317 gv = (GV*)POPs;
c289d2f7 2318 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2319
c289d2f7
JH		 2320 if (!gv || !io) {
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2322 report_evil_fh(gv, io, PL_op->op_type);
2323 if (IoIFP(io))
2324 do_close(gv, FALSE);
93189314 2325 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2326 RETPUSHUNDEF;
2327 }
2328
57171420
BS		 2329 if (IoIFP(io))
2330 do_close(gv, FALSE);
2331
a0d0e21e 2332 TAINT_PROPER("socket");
6ad3d225 2333 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2334 if (fd < 0)
2335 RETPUSHUNDEF;
460c8493
IZ		 2336 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2337 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2338 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2339 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2340 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2341 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2342 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2343 RETPUSHUNDEF;
2344 }
8d2a6795
GS		 2345#if defined(HAS_FCNTL) && defined(F_SETFD)
2346 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2347#endif
a0d0e21e 2348
d5ff79b3
OF		 2349#ifdef EPOC
2350 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2351#endif
2352
a0d0e21e
LW		 2353 RETPUSHYES;
2354#else
cea2e8a9 2355 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2356#endif
2357}
2358
2359PP(pp_sockpair)
2360{
c95c94b1 2361#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2362 dSP;
a0d0e21e
LW		 2363 GV *gv1;
2364 GV *gv2;
2365 register IO *io1;
2366 register IO *io2;
2367 int protocol = POPi;
2368 int type = POPi;
2369 int domain = POPi;
2370 int fd[2];
2371
2372 gv2 = (GV*)POPs;
2373 gv1 = (GV*)POPs;
c289d2f7
JH		 2374 io1 = gv1 ? GvIOn(gv1) : NULL;
2375 io2 = gv2 ? GvIOn(gv2) : NULL;
2376 if (!gv1 || !gv2 || !io1 || !io2) {
2377 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2378 if (!gv1 || !io1)
2379 report_evil_fh(gv1, io1, PL_op->op_type);
2380 if (!gv2 || !io2)
2381 report_evil_fh(gv1, io2, PL_op->op_type);
2382 }
2383 if (IoIFP(io1))
2384 do_close(gv1, FALSE);
2385 if (IoIFP(io2))
2386 do_close(gv2, FALSE);
a0d0e21e 2387 RETPUSHUNDEF;
c289d2f7 2388 }
a0d0e21e 2389
dc0d0a5f
JH		 2390 if (IoIFP(io1))
2391 do_close(gv1, FALSE);
2392 if (IoIFP(io2))
2393 do_close(gv2, FALSE);
57171420 2394
a0d0e21e 2395 TAINT_PROPER("socketpair");
6ad3d225 2396 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2397 RETPUSHUNDEF;
460c8493
IZ		 2398 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2399 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2400 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2401 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2403 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2404 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2405 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2406 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2407 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2408 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2409 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2410 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2411 RETPUSHUNDEF;
2412 }
8d2a6795
GS		 2413#if defined(HAS_FCNTL) && defined(F_SETFD)
2414 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2415 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2416#endif
a0d0e21e
LW		 2417
2418 RETPUSHYES;
2419#else
cea2e8a9 2420 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2421#endif
2422}
2423
2424PP(pp_bind)
2425{
a0d0e21e 2426#ifdef HAS_SOCKET
9cad6237 2427 dSP;
eec2d3df 2428#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2429 extern void GETPRIVMODE();
2430 extern void GETUSERMODE();
eec2d3df 2431#endif
748a9306 2432 SV *addrsv = POPs;
a0d0e21e
LW		 2433 char *addr;
2434 GV *gv = (GV*)POPs;
2435 register IO *io = GvIOn(gv);
2436 STRLEN len;
eec2d3df
GS		 2437 int bind_ok = 0;
2438#ifdef MPE
2439 int mpeprivmode = 0;
2440#endif
a0d0e21e
LW		 2441
2442 if (!io || !IoIFP(io))
2443 goto nuts;
2444
748a9306 2445 addr = SvPV(addrsv, len);
a0d0e21e 2446 TAINT_PROPER("bind");
eec2d3df
GS		 2447#ifdef MPE /* Deal with MPE bind() peculiarities */
2448 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2449 /* The address *MUST* stupidly be zero. */
2450 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2451 /* PRIV mode is required to bind() to ports < 1024. */
2452 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2453 ((struct sockaddr_in *)addr)->sin_port > 0) {
2454 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2455 mpeprivmode = 1;
2456 }
2457 }
2458#endif /* MPE */
2459 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2460 (struct sockaddr *)addr, len) >= 0)
2461 bind_ok = 1;
2462
2463#ifdef MPE /* Switch back to USER mode */
2464 if (mpeprivmode)
2465 GETUSERMODE();
2466#endif /* MPE */
2467
2468 if (bind_ok)
a0d0e21e
LW		 2469 RETPUSHYES;
2470 else
2471 RETPUSHUNDEF;
2472
2473nuts:
599cee73 2474 if (ckWARN(WARN_CLOSED))
bc37a18f 2475 report_evil_fh(gv, io, PL_op->op_type);
93189314 2476 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2477 RETPUSHUNDEF;
2478#else
cea2e8a9 2479 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2480#endif
2481}
2482
2483PP(pp_connect)
2484{
a0d0e21e 2485#ifdef HAS_SOCKET
9cad6237 2486 dSP;
748a9306 2487 SV *addrsv = POPs;
a0d0e21e
LW		 2488 char *addr;
2489 GV *gv = (GV*)POPs;
2490 register IO *io = GvIOn(gv);
2491 STRLEN len;
2492
2493 if (!io || !IoIFP(io))
2494 goto nuts;
2495
748a9306 2496 addr = SvPV(addrsv, len);
a0d0e21e 2497 TAINT_PROPER("connect");
6ad3d225 2498 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2499 RETPUSHYES;
2500 else
2501 RETPUSHUNDEF;
2502
2503nuts:
599cee73 2504 if (ckWARN(WARN_CLOSED))
bc37a18f 2505 report_evil_fh(gv, io, PL_op->op_type);
93189314 2506 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2507 RETPUSHUNDEF;
2508#else
cea2e8a9 2509 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2510#endif
2511}
2512
2513PP(pp_listen)
2514{
a0d0e21e 2515#ifdef HAS_SOCKET
9cad6237 2516 dSP;
a0d0e21e
LW		 2517 int backlog = POPi;
2518 GV *gv = (GV*)POPs;
c289d2f7 2519 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2520
c289d2f7 2521 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2522 goto nuts;
2523
6ad3d225 2524 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2525 RETPUSHYES;
2526 else
2527 RETPUSHUNDEF;
2528
2529nuts:
599cee73 2530 if (ckWARN(WARN_CLOSED))
bc37a18f 2531 report_evil_fh(gv, io, PL_op->op_type);
93189314 2532 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2533 RETPUSHUNDEF;
2534#else
cea2e8a9 2535 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2536#endif
2537}
2538
2539PP(pp_accept)
2540{
a0d0e21e 2541#ifdef HAS_SOCKET
9cad6237 2542 dSP; dTARGET;
a0d0e21e
LW		 2543 GV *ngv;
2544 GV *ggv;
2545 register IO *nstio;
2546 register IO *gstio;
93d47a36
JH		 2547 char namebuf[MAXPATHLEN];
2548#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2549 Sock_size_t len = sizeof (struct sockaddr_in);
2550#else
2551 Sock_size_t len = sizeof namebuf;
2552#endif
a0d0e21e
LW		 2553 int fd;
2554
2555 ggv = (GV*)POPs;
2556 ngv = (GV*)POPs;
2557
2558 if (!ngv)
2559 goto badexit;
2560 if (!ggv)
2561 goto nuts;
2562
2563 gstio = GvIO(ggv);
2564 if (!gstio || !IoIFP(gstio))
2565 goto nuts;
2566
2567 nstio = GvIOn(ngv);
93d47a36 2568 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2569 if (fd < 0)
2570 goto badexit;
a70048fb
AB		 2571 if (IoIFP(nstio))
2572 do_close(ngv, FALSE);
460c8493
IZ		 2573 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2574 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2575 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2576 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2577 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2578 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2579 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2580 goto badexit;
2581 }
8d2a6795
GS		 2582#if defined(HAS_FCNTL) && defined(F_SETFD)
2583 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2584#endif
a0d0e21e 2585
ed79a026 2586#ifdef EPOC
93d47a36 2587 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2588 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2589#endif
381c1bae 2590#ifdef __SCO_VERSION__
93d47a36 2591 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2592#endif
ed79a026 2593
93d47a36 2594 PUSHp(namebuf, len);
a0d0e21e
LW		 2595 RETURN;
2596
2597nuts:
599cee73 2598 if (ckWARN(WARN_CLOSED))
bc37a18f 2599 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2600 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2601
2602badexit:
2603 RETPUSHUNDEF;
2604
2605#else
cea2e8a9 2606 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2607#endif
2608}
2609
2610PP(pp_shutdown)
2611{
a0d0e21e 2612#ifdef HAS_SOCKET
9cad6237 2613 dSP; dTARGET;
a0d0e21e
LW		 2614 int how = POPi;
2615 GV *gv = (GV*)POPs;
2616 register IO *io = GvIOn(gv);
2617
2618 if (!io || !IoIFP(io))
2619 goto nuts;
2620
6ad3d225 2621 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2622 RETURN;
2623
2624nuts:
599cee73 2625 if (ckWARN(WARN_CLOSED))
bc37a18f 2626 report_evil_fh(gv, io, PL_op->op_type);
93189314 2627 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2628 RETPUSHUNDEF;
2629#else
cea2e8a9 2630 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2631#endif
2632}
2633
2634PP(pp_gsockopt)
2635{
2636#ifdef HAS_SOCKET
cea2e8a9 2637 return pp_ssockopt();
a0d0e21e 2638#else
cea2e8a9 2639 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2640#endif
2641}
2642
2643PP(pp_ssockopt)
2644{
a0d0e21e 2645#ifdef HAS_SOCKET
9cad6237 2646 dSP;
533c011a 2647 int optype = PL_op->op_type;
a0d0e21e
LW		 2648 SV *sv;
2649 int fd;
2650 unsigned int optname;
2651 unsigned int lvl;
2652 GV *gv;
2653 register IO *io;
1e422769 2654 Sock_size_t len;
a0d0e21e
LW		 2655
2656 if (optype == OP_GSOCKOPT)
2657 sv = sv_2mortal(NEWSV(22, 257));
2658 else
2659 sv = POPs;
2660 optname = (unsigned int) POPi;
2661 lvl = (unsigned int) POPi;
2662
2663 gv = (GV*)POPs;
2664 io = GvIOn(gv);
2665 if (!io || !IoIFP(io))
2666 goto nuts;
2667
760ac839 2668 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2669 switch (optype) {
2670 case OP_GSOCKOPT:
748a9306 2671 SvGROW(sv, 257);
a0d0e21e 2672 (void)SvPOK_only(sv);
748a9306
LW		 2673 SvCUR_set(sv,256);
2674 *SvEND(sv) ='\0';
1e422769 2675 len = SvCUR(sv);
6ad3d225 2676 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2677 goto nuts2;
1e422769 2678 SvCUR_set(sv, len);
748a9306 2679 *SvEND(sv) ='\0';
a0d0e21e
LW		 2680 PUSHs(sv);
2681 break;
2682 case OP_SSOCKOPT: {
1e422769 2683 char *buf;
2684 int aint;
2685 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2686 STRLEN l;
2687 buf = SvPV(sv, l);
2688 len = l;
1e422769 2689 }
56ee1660 2690 else {
a0d0e21e
LW		 2691 aint = (int)SvIV(sv);
2692 buf = (char*)&aint;
2693 len = sizeof(int);
2694 }
6ad3d225 2695 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2696 goto nuts2;
3280af22 2697 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2698 }
2699 break;
2700 }
2701 RETURN;
2702
2703nuts:
599cee73 2704 if (ckWARN(WARN_CLOSED))
bc37a18f 2705 report_evil_fh(gv, io, optype);
93189314 2706 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2707nuts2:
2708 RETPUSHUNDEF;
2709
2710#else
cea2e8a9 2711 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2712#endif
2713}
2714
2715PP(pp_getsockname)
2716{
2717#ifdef HAS_SOCKET
cea2e8a9 2718 return pp_getpeername();
a0d0e21e 2719#else
cea2e8a9 2720 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2721#endif
2722}
2723
2724PP(pp_getpeername)
2725{
a0d0e21e 2726#ifdef HAS_SOCKET
9cad6237 2727 dSP;
533c011a 2728 int optype = PL_op->op_type;
a0d0e21e
LW		 2729 SV *sv;
2730 int fd;
2731 GV *gv = (GV*)POPs;
2732 register IO *io = GvIOn(gv);
1e422769 2733 Sock_size_t len;
a0d0e21e
LW		 2734
2735 if (!io || !IoIFP(io))
2736 goto nuts;
2737
2738 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2739 (void)SvPOK_only(sv);
1e422769 2740 len = 256;
2741 SvCUR_set(sv, len);
748a9306 2742 *SvEND(sv) ='\0';
760ac839 2743 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2744 switch (optype) {
2745 case OP_GETSOCKNAME:
6ad3d225 2746 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2747 goto nuts2;
2748 break;
2749 case OP_GETPEERNAME:
6ad3d225 2750 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2751 goto nuts2;
490ab354
JH		 2752#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2753 {
2754 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";
2755 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2756 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2757 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2758 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2759 goto nuts2;
490ab354
JH		 2760 }
2761 }
2762#endif
a0d0e21e
LW		 2763 break;
2764 }
13826f2c
CS		 2765#ifdef BOGUS_GETNAME_RETURN
2766 /* Interactive Unix, getpeername() and getsockname()
2767 does not return valid namelen */
1e422769 2768 if (len == BOGUS_GETNAME_RETURN)
2769 len = sizeof(struct sockaddr);
13826f2c 2770#endif
1e422769 2771 SvCUR_set(sv, len);
748a9306 2772 *SvEND(sv) ='\0';
a0d0e21e
LW		 2773 PUSHs(sv);
2774 RETURN;
2775
2776nuts:
599cee73 2777 if (ckWARN(WARN_CLOSED))
bc37a18f 2778 report_evil_fh(gv, io, optype);
93189314 2779 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2780nuts2:
2781 RETPUSHUNDEF;
2782
2783#else
cea2e8a9 2784 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2785#endif
2786}
2787
2788/* Stat calls. */
2789
2790PP(pp_lstat)
2791{
cea2e8a9 2792 return pp_stat();
a0d0e21e
LW		 2793}
2794
2795PP(pp_stat)
2796{
39644a26 2797 dSP;
2dd78f96 2798 GV *gv;
54310121 2799 I32 gimme;
a0d0e21e 2800 I32 max = 13;
2d8e6c8d 2801 STRLEN n_a;
a0d0e21e 2802
533c011a 2803 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2804 gv = cGVOP_gv;
8a4e5b40 2805 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2806 if (gv != PL_defgv) {
2807 if (ckWARN(WARN_IO))
9014280d 2808 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2809 "lstat() on filehandle %s", GvENAME(gv));
2810 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2811 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2812 }
2813
748a9306 2814 do_fstat:
2dd78f96 2815 if (gv != PL_defgv) {
3280af22 2816 PL_laststype = OP_STAT;
2dd78f96 2817 PL_statgv = gv;
3280af22 2818 sv_setpv(PL_statname, "");
2dd78f96
JH		 2819 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2820 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2821 }
9ddeeac9 2822 if (PL_laststatval < 0) {
2dd78f96
JH		 2823 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2824 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2825 max = 0;
9ddeeac9 2826 }
a0d0e21e
LW		 2827 }
2828 else {
748a9306
LW		 2829 SV* sv = POPs;
2830 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2831 gv = (GV*)sv;
748a9306
LW		 2832 goto do_fstat;
2833 }
2834 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2835 gv = (GV*)SvRV(sv);
5d3e98de 2836 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2837 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2838 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2839 goto do_fstat;
2840 }
2d8e6c8d 2841 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2842 PL_statgv = Nullgv;
533c011a
NIS		 2843 PL_laststype = PL_op->op_type;
2844 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2845 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2846 else
2d8e6c8d 2847 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2848 if (PL_laststatval < 0) {
2d8e6c8d 2849 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2850 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2851 max = 0;
2852 }
2853 }
2854
54310121 2855 gimme = GIMME_V;
2856 if (gimme != G_ARRAY) {
2857 if (gimme != G_VOID)
2858 XPUSHs(boolSV(max));
2859 RETURN;
a0d0e21e
LW		 2860 }
2861 if (max) {
36477c24 2862 EXTEND(SP, max);
2863 EXTEND_MORTAL(max);
1ff81528
PL		 2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2867 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2868#if Uid_t_size > IVSIZE
2869 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2870#else
23dcd6c8 2871# if Uid_t_sign <= 0
1ff81528 2872 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2873# else
2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2875# endif
146174a9 2876#endif
301e8125 2877#if Gid_t_size > IVSIZE
146174a9
CB		 2878 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2879#else
23dcd6c8 2880# if Gid_t_sign <= 0
1ff81528 2881 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2882# else
2883 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2884# endif
146174a9 2885#endif
cbdc8872 2886#ifdef USE_STAT_RDEV
1ff81528 2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2888#else
79cb57f6 2889 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2890#endif
146174a9 2891#if Off_t_size > IVSIZE
4a9d6100 2892 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2893#else
1ff81528 2894 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2895#endif
cbdc8872 2896#ifdef BIG_TIME
172ae379
JH		 2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2900#else
1ff81528
PL		 2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2904#endif
a0d0e21e 2905#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2907 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2908#else
79cb57f6
GS		 2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
2910 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2911#endif
2912 }
2913 RETURN;
2914}
2915
fbb0b3b3
RGS		 2916/* This macro is used by the stacked filetest operators :
2917 * if the previous filetest failed, short-circuit and pass its value.
2918 * Else, discard it from the stack and continue. --rgs
2919 */
2920#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2921 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2922 else { (void)POPs; PUTBACK; } \
2923 }
2924
a0d0e21e
LW		 2925PP(pp_ftrread)
2926{
9cad6237 2927 I32 result;
2a3ff820 2928 dSP;
fbb0b3b3 2929 STACKED_FTEST_CHECK;
5ff3f7a4 2930#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2931 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2932 STRLEN n_a;
43b06338 2933 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2934 if (result == 0)
2935 RETPUSHYES;
2936 if (result < 0)
2937 RETPUSHUNDEF;
2938 RETPUSHNO;
22865c03
GS		 2939 }
2940 else
cea2e8a9 2941 result = my_stat();
5ff3f7a4 2942#else
cea2e8a9 2943 result = my_stat();
5ff3f7a4 2944#endif
22865c03 2945 SPAGAIN;
a0d0e21e
LW		 2946 if (result < 0)
2947 RETPUSHUNDEF;
3280af22 2948 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2949 RETPUSHYES;
2950 RETPUSHNO;
2951}
2952
2953PP(pp_ftrwrite)
2954{
9cad6237 2955 I32 result;
2a3ff820 2956 dSP;
fbb0b3b3 2957 STACKED_FTEST_CHECK;
5ff3f7a4 2958#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2959 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2960 STRLEN n_a;
43b06338 2961 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2962 if (result == 0)
2963 RETPUSHYES;
2964 if (result < 0)
2965 RETPUSHUNDEF;
2966 RETPUSHNO;
22865c03
GS		 2967 }
2968 else
cea2e8a9 2969 result = my_stat();
5ff3f7a4 2970#else
cea2e8a9 2971 result = my_stat();
5ff3f7a4 2972#endif
22865c03 2973 SPAGAIN;
a0d0e21e
LW		 2974 if (result < 0)
2975 RETPUSHUNDEF;
3280af22 2976 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2977 RETPUSHYES;
2978 RETPUSHNO;
2979}
2980
2981PP(pp_ftrexec)
2982{
9cad6237 2983 I32 result;
2a3ff820 2984 dSP;
fbb0b3b3 2985 STACKED_FTEST_CHECK;
5ff3f7a4 2986#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2987 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2988 STRLEN n_a;
43b06338 2989 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2990 if (result == 0)
2991 RETPUSHYES;
2992 if (result < 0)
2993 RETPUSHUNDEF;
2994 RETPUSHNO;
22865c03
GS		 2995 }
2996 else
cea2e8a9 2997 result = my_stat();
5ff3f7a4 2998#else
cea2e8a9 2999 result = my_stat();
5ff3f7a4 3000#endif
22865c03 3001 SPAGAIN;
a0d0e21e
LW		 3002 if (result < 0)
3003 RETPUSHUNDEF;
3280af22 3004 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3005 RETPUSHYES;
3006 RETPUSHNO;
3007}
3008
3009PP(pp_fteread)
3010{
9cad6237 3011 I32 result;
2a3ff820 3012 dSP;
fbb0b3b3 3013 STACKED_FTEST_CHECK;
5ff3f7a4 3014#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3015 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3016 STRLEN n_a;
43b06338 3017 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3018 if (result == 0)
3019 RETPUSHYES;
3020 if (result < 0)
3021 RETPUSHUNDEF;
3022 RETPUSHNO;
22865c03
GS		 3023 }
3024 else
cea2e8a9 3025 result = my_stat();
5ff3f7a4 3026#else
cea2e8a9 3027 result = my_stat();
5ff3f7a4 3028#endif
22865c03 3029 SPAGAIN;
a0d0e21e
LW		 3030 if (result < 0)
3031 RETPUSHUNDEF;
3280af22 3032 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3033 RETPUSHYES;
3034 RETPUSHNO;
3035}
3036
3037PP(pp_ftewrite)
3038{
9cad6237 3039 I32 result;
2a3ff820 3040 dSP;
fbb0b3b3 3041 STACKED_FTEST_CHECK;
5ff3f7a4 3042#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3043 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3044 STRLEN n_a;
43b06338 3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3046 if (result == 0)
3047 RETPUSHYES;
3048 if (result < 0)
3049 RETPUSHUNDEF;
3050 RETPUSHNO;
22865c03
GS		 3051 }
3052 else
cea2e8a9 3053 result = my_stat();
5ff3f7a4 3054#else
cea2e8a9 3055 result = my_stat();
5ff3f7a4 3056#endif
22865c03 3057 SPAGAIN;
a0d0e21e
LW		 3058 if (result < 0)
3059 RETPUSHUNDEF;
3280af22 3060 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3061 RETPUSHYES;
3062 RETPUSHNO;
3063}
3064
3065PP(pp_fteexec)
3066{
9cad6237 3067 I32 result;
2a3ff820 3068 dSP;
fbb0b3b3 3069 STACKED_FTEST_CHECK;
5ff3f7a4 3070#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3071 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3072 STRLEN n_a;
43b06338 3073 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3074 if (result == 0)
3075 RETPUSHYES;
3076 if (result < 0)
3077 RETPUSHUNDEF;
3078 RETPUSHNO;
22865c03
GS		 3079 }
3080 else
cea2e8a9 3081 result = my_stat();
5ff3f7a4 3082#else
cea2e8a9 3083 result = my_stat();
5ff3f7a4 3084#endif
22865c03 3085 SPAGAIN;
a0d0e21e
LW		 3086 if (result < 0)
3087 RETPUSHUNDEF;
3280af22 3088 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3089 RETPUSHYES;
3090 RETPUSHNO;
3091}
3092
3093PP(pp_ftis)
3094{
fbb0b3b3 3095 I32 result;
2a3ff820 3096 dSP;
fbb0b3b3
RGS		 3097 STACKED_FTEST_CHECK;
3098 result = my_stat();
3099 SPAGAIN;
a0d0e21e
LW		 3100 if (result < 0)
3101 RETPUSHUNDEF;
3102 RETPUSHYES;
3103}
3104
3105PP(pp_fteowned)
3106{
cea2e8a9 3107 return pp_ftrowned();
a0d0e21e
LW		 3108}
3109
3110PP(pp_ftrowned)
3111{
fbb0b3b3 3112 I32 result;
2a3ff820 3113 dSP;
fbb0b3b3
RGS		 3114 STACKED_FTEST_CHECK;
3115 result = my_stat();
3116 SPAGAIN;
a0d0e21e
LW		 3117 if (result < 0)
3118 RETPUSHUNDEF;
146174a9
CB		 3119 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3120 PL_euid : PL_uid) )
a0d0e21e
LW		 3121 RETPUSHYES;
3122 RETPUSHNO;
3123}
3124
3125PP(pp_ftzero)
3126{
fbb0b3b3 3127 I32 result;
2a3ff820 3128 dSP;
fbb0b3b3
RGS		 3129 STACKED_FTEST_CHECK;
3130 result = my_stat();
3131 SPAGAIN;
a0d0e21e
LW		 3132 if (result < 0)
3133 RETPUSHUNDEF;
146174a9 3134 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3135 RETPUSHYES;
3136 RETPUSHNO;
3137}
3138
3139PP(pp_ftsize)
3140{
fbb0b3b3 3141 I32 result;
2a3ff820 3142 dSP; dTARGET;
fbb0b3b3
RGS		 3143 STACKED_FTEST_CHECK;
3144 result = my_stat();
3145 SPAGAIN;
a0d0e21e
LW		 3146 if (result < 0)
3147 RETPUSHUNDEF;
146174a9
CB		 3148#if Off_t_size > IVSIZE
3149 PUSHn(PL_statcache.st_size);
3150#else
3280af22 3151 PUSHi(PL_statcache.st_size);
146174a9 3152#endif
a0d0e21e
LW		 3153 RETURN;
3154}
3155
3156PP(pp_ftmtime)
3157{
fbb0b3b3 3158 I32 result;
2a3ff820 3159 dSP; dTARGET;
fbb0b3b3
RGS		 3160 STACKED_FTEST_CHECK;
3161 result = my_stat();
3162 SPAGAIN;
a0d0e21e
LW		 3163 if (result < 0)
3164 RETPUSHUNDEF;
a80d47c2 3165 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3166 RETURN;
3167}
3168
3169PP(pp_ftatime)
3170{
fbb0b3b3 3171 I32 result;
2a3ff820 3172 dSP; dTARGET;
fbb0b3b3
RGS		 3173 STACKED_FTEST_CHECK;
3174 result = my_stat();
3175 SPAGAIN;
a0d0e21e
LW		 3176 if (result < 0)
3177 RETPUSHUNDEF;
a80d47c2 3178 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3179 RETURN;
3180}
3181
3182PP(pp_ftctime)
3183{
fbb0b3b3 3184 I32 result;
2a3ff820 3185 dSP; dTARGET;
fbb0b3b3
RGS		 3186 STACKED_FTEST_CHECK;
3187 result = my_stat();
3188 SPAGAIN;
a0d0e21e
LW		 3189 if (result < 0)
3190 RETPUSHUNDEF;
a80d47c2 3191 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3192 RETURN;
3193}
3194
3195PP(pp_ftsock)
3196{
fbb0b3b3 3197 I32 result;
2a3ff820 3198 dSP;
fbb0b3b3
RGS		 3199 STACKED_FTEST_CHECK;
3200 result = my_stat();
3201 SPAGAIN;
a0d0e21e
LW		 3202 if (result < 0)
3203 RETPUSHUNDEF;
3280af22 3204 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3205 RETPUSHYES;
3206 RETPUSHNO;
3207}
3208
3209PP(pp_ftchr)
3210{
fbb0b3b3 3211 I32 result;
2a3ff820 3212 dSP;
fbb0b3b3
RGS		 3213 STACKED_FTEST_CHECK;
3214 result = my_stat();
3215 SPAGAIN;
a0d0e21e
LW		 3216 if (result < 0)
3217 RETPUSHUNDEF;
3280af22 3218 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3219 RETPUSHYES;
3220 RETPUSHNO;
3221}
3222
3223PP(pp_ftblk)
3224{
fbb0b3b3 3225 I32 result;
2a3ff820 3226 dSP;
fbb0b3b3
RGS		 3227 STACKED_FTEST_CHECK;
3228 result = my_stat();
3229 SPAGAIN;
a0d0e21e
LW		 3230 if (result < 0)
3231 RETPUSHUNDEF;
3280af22 3232 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3233 RETPUSHYES;
3234 RETPUSHNO;
3235}
3236
3237PP(pp_ftfile)
3238{
fbb0b3b3 3239 I32 result;
2a3ff820 3240 dSP;
fbb0b3b3
RGS		 3241 STACKED_FTEST_CHECK;
3242 result = my_stat();
3243 SPAGAIN;
a0d0e21e
LW		 3244 if (result < 0)
3245 RETPUSHUNDEF;
3280af22 3246 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3247 RETPUSHYES;
3248 RETPUSHNO;
3249}
3250
3251PP(pp_ftdir)
3252{
fbb0b3b3 3253 I32 result;
2a3ff820 3254 dSP;
fbb0b3b3
RGS		 3255 STACKED_FTEST_CHECK;
3256 result = my_stat();
3257 SPAGAIN;
a0d0e21e
LW		 3258 if (result < 0)
3259 RETPUSHUNDEF;
3280af22 3260 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3261 RETPUSHYES;
3262 RETPUSHNO;
3263}
3264
3265PP(pp_ftpipe)
3266{
fbb0b3b3 3267 I32 result;
2a3ff820 3268 dSP;
fbb0b3b3
RGS		 3269 STACKED_FTEST_CHECK;
3270 result = my_stat();
3271 SPAGAIN;
a0d0e21e
LW		 3272 if (result < 0)
3273 RETPUSHUNDEF;
3280af22 3274 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3275 RETPUSHYES;
3276 RETPUSHNO;
3277}
3278
3279PP(pp_ftlink)
3280{
9cad6237 3281 I32 result = my_lstat();
2a3ff820 3282 dSP;
a0d0e21e
LW		 3283 if (result < 0)
3284 RETPUSHUNDEF;
3280af22 3285 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3286 RETPUSHYES;
3287 RETPUSHNO;
3288}
3289
3290PP(pp_ftsuid)
3291{
39644a26 3292 dSP;
a0d0e21e 3293#ifdef S_ISUID
fbb0b3b3
RGS		 3294 I32 result;
3295 STACKED_FTEST_CHECK;
3296 result = my_stat();
a0d0e21e
LW		 3297 SPAGAIN;
3298 if (result < 0)
3299 RETPUSHUNDEF;
3280af22 3300 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3301 RETPUSHYES;
3302#endif
3303 RETPUSHNO;
3304}
3305
3306PP(pp_ftsgid)
3307{
39644a26 3308 dSP;
a0d0e21e 3309#ifdef S_ISGID
fbb0b3b3
RGS		 3310 I32 result;
3311 STACKED_FTEST_CHECK;
3312 result = my_stat();
a0d0e21e
LW		 3313 SPAGAIN;
3314 if (result < 0)
3315 RETPUSHUNDEF;
3280af22 3316 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3317 RETPUSHYES;
3318#endif
3319 RETPUSHNO;
3320}
3321
3322PP(pp_ftsvtx)
3323{
39644a26 3324 dSP;
a0d0e21e 3325#ifdef S_ISVTX
fbb0b3b3
RGS		 3326 I32 result;
3327 STACKED_FTEST_CHECK;
3328 result = my_stat();
a0d0e21e
LW		 3329 SPAGAIN;
3330 if (result < 0)
3331 RETPUSHUNDEF;
3280af22 3332 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3333 RETPUSHYES;
3334#endif
3335 RETPUSHNO;
3336}
3337
3338PP(pp_fttty)
3339{
39644a26 3340 dSP;
a0d0e21e
LW		 3341 int fd;
3342 GV *gv;
7a5fd60d 3343 SV *tmpsv = Nullsv;
fb73857a 3344
fbb0b3b3
RGS		 3345 STACKED_FTEST_CHECK;
3346
533c011a 3347 if (PL_op->op_flags & OPf_REF)
146174a9 3348 gv = cGVOP_gv;
fb73857a 3349 else if (isGV(TOPs))
3350 gv = (GV*)POPs;
3351 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3352 gv = (GV*)SvRV(POPs);
a0d0e21e 3353 else
7a5fd60d 3354 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3355
a0d0e21e 3356 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3357 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d
NC		 3358 else if (tmpsv && SvOK(tmpsv)) {
3359 STRLEN n_a;
3360 char *tmps = SvPV(tmpsv, n_a);
3361 if (isDIGIT(*tmps))
3362 fd = atoi(tmps);
3363 else
3364 RETPUSHUNDEF;
3365 }
a0d0e21e
LW		 3366 else
3367 RETPUSHUNDEF;
6ad3d225 3368 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3369 RETPUSHYES;
3370 RETPUSHNO;
3371}
3372
16d20bd9
AD		 3373#if defined(atarist) /* this will work with atariST. Configure will
3374 make guesses for other systems. */
3375# define FILE_base(f) ((f)->_base)
3376# define FILE_ptr(f) ((f)->_ptr)
3377# define FILE_cnt(f) ((f)->_cnt)
3378# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3379#endif
3380
3381PP(pp_fttext)
3382{
39644a26 3383 dSP;
a0d0e21e
LW		 3384 I32 i;
3385 I32 len;
3386 I32 odd = 0;
3387 STDCHAR tbuf[512];
3388 register STDCHAR *s;
3389 register IO *io;
5f05dabc 3390 register SV *sv;
3391 GV *gv;
2d8e6c8d 3392 STRLEN n_a;
146174a9 3393 PerlIO *fp;
a0d0e21e 3394
fbb0b3b3
RGS		 3395 STACKED_FTEST_CHECK;
3396
533c011a 3397 if (PL_op->op_flags & OPf_REF)
146174a9 3398 gv = cGVOP_gv;
5f05dabc 3399 else if (isGV(TOPs))
3400 gv = (GV*)POPs;
3401 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3402 gv = (GV*)SvRV(POPs);
3403 else
3404 gv = Nullgv;
3405
3406 if (gv) {
a0d0e21e 3407 EXTEND(SP, 1);
3280af22
NIS		 3408 if (gv == PL_defgv) {
3409 if (PL_statgv)
3410 io = GvIO(PL_statgv);
a0d0e21e 3411 else {
3280af22 3412 sv = PL_statname;
a0d0e21e
LW		 3413 goto really_filename;
3414 }
3415 }
3416 else {
3280af22
NIS		 3417 PL_statgv = gv;
3418 PL_laststatval = -1;
3419 sv_setpv(PL_statname, "");
3420 io = GvIO(PL_statgv);
a0d0e21e
LW		 3421 }
3422 if (io && IoIFP(io)) {
5f05dabc 3423 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3424 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3425 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3426 if (PL_laststatval < 0)
5f05dabc 3427 RETPUSHUNDEF;
9cbac4c7 3428 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3429 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3430 RETPUSHNO;
3431 else
3432 RETPUSHYES;
9cbac4c7 3433 }
a20bf0c3 3434 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3435 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3436 if (i != EOF)
760ac839 3437 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3438 }
a20bf0c3 3439 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3440 RETPUSHYES;
a20bf0c3
JH		 3441 len = PerlIO_get_bufsiz(IoIFP(io));
3442 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3443 /* sfio can have large buffers - limit to 512 */
3444 if (len > 512)
3445 len = 512;
a0d0e21e
LW		 3446 }
3447 else {
2dd78f96 3448 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3449 gv = cGVOP_gv;
2dd78f96 3450 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3451 }
93189314 3452 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3453 RETPUSHUNDEF;
3454 }
3455 }
3456 else {
3457 sv = POPs;
5f05dabc 3458 really_filename:
3280af22 3459 PL_statgv = Nullgv;
5c9aa243 3460 PL_laststype = OP_STAT;
2d8e6c8d 3461 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3462 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3463 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3464 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3465 RETPUSHUNDEF;
3466 }
146174a9
CB		 3467 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3468 if (PL_laststatval < 0) {
3469 (void)PerlIO_close(fp);
5f05dabc 3470 RETPUSHUNDEF;
146174a9 3471 }
60382766 3472 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3473 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3474 (void)PerlIO_close(fp);
a0d0e21e 3475 if (len <= 0) {
533c011a 3476 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3477 RETPUSHNO; /* special case NFS directories */
3478 RETPUSHYES; /* null file is anything */
3479 }
3480 s = tbuf;
3481 }
3482
3483 /* now scan s to look for textiness */
4633a7c4 3484 /* XXX ASCII dependent code */
a0d0e21e 3485
146174a9
CB		 3486#if defined(DOSISH) || defined(USEMYBINMODE)
3487 /* ignore trailing ^Z on short files */
3488 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3489 --len;
3490#endif
3491
a0d0e21e
LW		 3492 for (i = 0; i < len; i++, s++) {
3493 if (!*s) { /* null never allowed in text */
3494 odd += len;
3495 break;
3496 }
9d116dd7 3497#ifdef EBCDIC
301e8125 3498 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3499 odd++;
3500#else
146174a9
CB		 3501 else if (*s & 128) {
3502#ifdef USE_LOCALE
2de3dbcc 3503 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3504 continue;
3505#endif
3506 /* utf8 characters don't count as odd */
fd400ab9 3507 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3508 int ulen = UTF8SKIP(s);
3509 if (ulen < len - i) {
3510 int j;
3511 for (j = 1; j < ulen; j++) {
fd400ab9 3512 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3513 goto not_utf8;
3514 }
3515 --ulen; /* loop does extra increment */
3516 s += ulen;
3517 i += ulen;
3518 continue;
3519 }
3520 }
3521 not_utf8:
3522 odd++;
146174a9 3523 }
a0d0e21e
LW		 3524 else if (*s < 32 &&
3525 *s != '\n' && *s != '\r' && *s != '\b' &&
3526 *s != '\t' && *s != '\f' && *s != 27)
3527 odd++;
9d116dd7 3528#endif
a0d0e21e
LW		 3529 }
3530
533c011a 3531 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3532 RETPUSHNO;
3533 else
3534 RETPUSHYES;
3535}
3536
3537PP(pp_ftbinary)
3538{
cea2e8a9 3539 return pp_fttext();
a0d0e21e
LW		 3540}
3541
3542/* File calls. */
3543
3544PP(pp_chdir)
3545{
39644a26 3546 dSP; dTARGET;
a0d0e21e
LW		 3547 char *tmps;
3548 SV **svp;
2d8e6c8d 3549 STRLEN n_a;
a0d0e21e 3550
35ae6b54
MS		 3551 if( MAXARG == 1 )
3552 tmps = POPpx;
3553 else
3554 tmps = 0;
3555
3556 if( !tmps || !*tmps ) {
3557 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3558 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3559#ifdef VMS
35ae6b54 3560 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3561#endif
35ae6b54
MS		 3562 )
3563 {
3564 if( MAXARG == 1 )
9014280d 3565 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3566 tmps = SvPV(*svp, n_a);
3567 }
72f496dc 3568 else {
389ec635 3569 PUSHi(0);
b7ab37f8 3570 TAINT_PROPER("chdir");
389ec635
MS		 3571 RETURN;
3572 }
8ea155d1 3573 }
8ea155d1 3574
a0d0e21e 3575 TAINT_PROPER("chdir");
6ad3d225 3576 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3577#ifdef VMS
3578 /* Clear the DEFAULT element of ENV so we'll get the new value
3579 * in the future. */
6b88bc9c 3580 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3581#endif
a0d0e21e
LW		 3582 RETURN;
3583}
3584
3585PP(pp_chown)
3586{
a0d0e21e 3587#ifdef HAS_CHOWN
76ffd3b9
IZ		 3588 dSP; dMARK; dTARGET;
3589 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3590
a0d0e21e
LW		 3591 SP = MARK;
3592 PUSHi(value);
3593 RETURN;
3594#else
0322a713 3595 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3596#endif
3597}
3598
3599PP(pp_chroot)
3600{
a0d0e21e 3601#ifdef HAS_CHROOT
76ffd3b9 3602 dSP; dTARGET;
2d8e6c8d 3603 STRLEN n_a;
d05c1ba0 3604 char *tmps = POPpx;
a0d0e21e
LW		 3605 TAINT_PROPER("chroot");
3606 PUSHi( chroot(tmps) >= 0 );
3607 RETURN;
3608#else
cea2e8a9 3609 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3610#endif
3611}
3612
3613PP(pp_unlink)
3614{
39644a26 3615 dSP; dMARK; dTARGET;
a0d0e21e 3616 I32 value;
533c011a 3617 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3618 SP = MARK;
3619 PUSHi(value);
3620 RETURN;
3621}
3622
3623PP(pp_chmod)
3624{
39644a26 3625 dSP; dMARK; dTARGET;
a0d0e21e 3626 I32 value;
533c011a 3627 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3628 SP = MARK;
3629 PUSHi(value);
3630 RETURN;
3631}
3632
3633PP(pp_utime)
3634{
39644a26 3635 dSP; dMARK; dTARGET;
a0d0e21e 3636 I32 value;
533c011a 3637 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3638 SP = MARK;
3639 PUSHi(value);
3640 RETURN;
3641}
3642
3643PP(pp_rename)
3644{
39644a26 3645 dSP; dTARGET;
a0d0e21e 3646 int anum;
2d8e6c8d 3647 STRLEN n_a;
a0d0e21e 3648
2d8e6c8d
GS		 3649 char *tmps2 = POPpx;
3650 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3651 TAINT_PROPER("rename");
3652#ifdef HAS_RENAME
baed7233 3653 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3654#else
6b88bc9c 3655 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3656 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3657 anum = 1;
3658 else {
3654eb6c 3659 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3660 (void)UNLINK(tmps2);
3661 if (!(anum = link(tmps, tmps2)))
3662 anum = UNLINK(tmps);
3663 }
a0d0e21e
LW		 3664 }
3665#endif
3666 SETi( anum >= 0 );
3667 RETURN;
3668}
3669
3670PP(pp_link)
3671{
a0d0e21e 3672#ifdef HAS_LINK
370f6000 3673 dSP; dTARGET;
2d8e6c8d
GS		 3674 STRLEN n_a;
3675 char *tmps2 = POPpx;
3676 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3677 TAINT_PROPER("link");
146174a9 3678 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3679 RETURN;
a0d0e21e 3680#else
0322a713 3681 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3682#endif
a0d0e21e
LW		 3683}
3684
3685PP(pp_symlink)
3686{
a0d0e21e 3687#ifdef HAS_SYMLINK
9cad6237 3688 dSP; dTARGET;
2d8e6c8d
GS		 3689 STRLEN n_a;
3690 char *tmps2 = POPpx;
3691 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3692 TAINT_PROPER("symlink");
3693 SETi( symlink(tmps, tmps2) >= 0 );
3694 RETURN;
3695#else
cea2e8a9 3696 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3697#endif
3698}
3699
3700PP(pp_readlink)
3701{
76ffd3b9 3702 dSP;
a0d0e21e 3703#ifdef HAS_SYMLINK
76ffd3b9 3704 dTARGET;
a0d0e21e 3705 char *tmps;
46fc3d4c 3706 char buf[MAXPATHLEN];
a0d0e21e 3707 int len;
2d8e6c8d 3708 STRLEN n_a;
46fc3d4c 3709
fb73857a 3710#ifndef INCOMPLETE_TAINTS
3711 TAINT;
3712#endif
2d8e6c8d 3713 tmps = POPpx;
97dcea33 3714 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3715 EXTEND(SP, 1);
3716 if (len < 0)
3717 RETPUSHUNDEF;
3718 PUSHp(buf, len);
3719 RETURN;
3720#else
3721 EXTEND(SP, 1);
3722 RETSETUNDEF; /* just pretend it's a normal file */
3723#endif
3724}
3725
3726#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3727STATIC int
cea2e8a9 3728S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3729{
1e422769 3730 char *save_filename = filename;
3731 char *cmdline;
3732 char *s;
760ac839 3733 PerlIO *myfp;
1e422769 3734 int anum = 1;
a0d0e21e 3735
1e422769 3736 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3737 strcpy(cmdline, cmd);
3738 strcat(cmdline, " ");
3739 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3740 *s++ = '\\';
3741 *s++ = *filename++;
3742 }
3743 strcpy(s, " 2>&1");
6ad3d225 3744 myfp = PerlProc_popen(cmdline, "r");
1e422769 3745 Safefree(cmdline);
3746
a0d0e21e 3747 if (myfp) {
1e422769 3748 SV *tmpsv = sv_newmortal();
6b88bc9c 3749 /* Need to save/restore 'PL_rs' ?? */
760ac839 3750 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3751 (void)PerlProc_pclose(myfp);
a0d0e21e 3752 if (s != Nullch) {
1e422769 3753 int e;
3754 for (e = 1;
a0d0e21e 3755#ifdef HAS_SYS_ERRLIST
1e422769 3756 e <= sys_nerr
3757#endif
3758 ; e++)
3759 {
3760 /* you don't see this */
3761 char *errmsg =
3762#ifdef HAS_SYS_ERRLIST
3763 sys_errlist[e]
a0d0e21e 3764#else
1e422769 3765 strerror(e)
a0d0e21e 3766#endif
1e422769 3767 ;
3768 if (!errmsg)
3769 break;
3770 if (instr(s, errmsg)) {
3771 SETERRNO(e,0);
3772 return 0;
3773 }
a0d0e21e 3774 }
748a9306 3775 SETERRNO(0,0);
a0d0e21e
LW		 3776#ifndef EACCES
3777#define EACCES EPERM
3778#endif
1e422769 3779 if (instr(s, "cannot make"))
93189314 3780 SETERRNO(EEXIST,RMS_FEX);
1e422769 3781 else if (instr(s, "existing file"))
93189314 3782 SETERRNO(EEXIST,RMS_FEX);
1e422769 3783 else if (instr(s, "ile exists"))
93189314 3784 SETERRNO(EEXIST,RMS_FEX);
1e422769 3785 else if (instr(s, "non-exist"))
93189314 3786 SETERRNO(ENOENT,RMS_FNF);
1e422769 3787 else if (instr(s, "does not exist"))
93189314 3788 SETERRNO(ENOENT,RMS_FNF);
1e422769 3789 else if (instr(s, "not empty"))
93189314 3790 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3791 else if (instr(s, "cannot access"))
93189314 3792 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3793 else
93189314 3794 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3795 return 0;
3796 }
3797 else { /* some mkdirs return no failure indication */
6b88bc9c 3798 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3799 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3800 anum = !anum;
3801 if (anum)
748a9306 3802 SETERRNO(0,0);
a0d0e21e 3803 else
93189314 3804 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3805 }
3806 return anum;
3807 }
3808 else
3809 return 0;
3810}
3811#endif
3812
0c54f65b
RGS		 3813/* This macro removes trailing slashes from a directory name.
3814 * Different operating and file systems take differently to
3815 * trailing slashes. According to POSIX 1003.1 1996 Edition
3816 * any number of trailing slashes should be allowed.
3817 * Thusly we snip them away so that even non-conforming
3818 * systems are happy.
3819 * We should probably do this "filtering" for all
3820 * the functions that expect (potentially) directory names:
3821 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3822 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3823
3824#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3825 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3826 do { \
3827 (len)--; \
3828 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3829 (tmps) = savepvn((tmps), (len)); \
3830 (copy) = TRUE; \
3831 }
3832
a0d0e21e
LW		 3833PP(pp_mkdir)
3834{
39644a26 3835 dSP; dTARGET;
5a211162 3836 int mode;
a0d0e21e
LW		 3837#ifndef HAS_MKDIR
3838 int oldumask;
3839#endif
df25ddba 3840 STRLEN len;
5a211162 3841 char *tmps;
df25ddba 3842 bool copy = FALSE;
5a211162
GS		 3843
3844 if (MAXARG > 1)
3845 mode = POPi;
3846 else
3847 mode = 0777;
3848
0c54f65b 3849 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3850
3851 TAINT_PROPER("mkdir");
3852#ifdef HAS_MKDIR
6ad3d225 3853 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3854#else
3855 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3856 oldumask = PerlLIO_umask(0);
3857 PerlLIO_umask(oldumask);
3858 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3859#endif
df25ddba
JH		 3860 if (copy)
3861 Safefree(tmps);
a0d0e21e
LW		 3862 RETURN;
3863}
3864
3865PP(pp_rmdir)
3866{
39644a26 3867 dSP; dTARGET;
0c54f65b 3868 STRLEN len;
a0d0e21e 3869 char *tmps;
0c54f65b 3870 bool copy = FALSE;
a0d0e21e 3871
0c54f65b 3872 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3873 TAINT_PROPER("rmdir");
3874#ifdef HAS_RMDIR
0c54f65b 3875 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3876#else
0c54f65b 3877 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3878#endif
0c54f65b
RGS		 3879 if (copy)
3880 Safefree(tmps);
a0d0e21e
LW		 3881 RETURN;
3882}
3883
3884/* Directory calls. */
3885
3886PP(pp_open_dir)
3887{
a0d0e21e 3888#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3889 dSP;
2d8e6c8d
GS		 3890 STRLEN n_a;
3891 char *dirname = POPpx;
1e2c6ed7
JH		 3892 GV *gv = (GV*)POPs;
3893 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3894
3895 if (!io)
3896 goto nope;
3897
3898 if (IoDIRP(io))
6ad3d225
GS		 3899 PerlDir_close(IoDIRP(io));
3900 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3901 goto nope;
3902
3903 RETPUSHYES;
3904nope:
3905 if (!errno)
93189314 3906 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3907 RETPUSHUNDEF;
3908#else
cea2e8a9 3909 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3910#endif
3911}
3912
3913PP(pp_readdir)
3914{
34b7f128
AMS		 3915#if !defined(Direntry_t) || !defined(HAS_READDIR)
3916 DIE(aTHX_ PL_no_dir_func, "readdir");
3917#else
fd8cd3a3 3918#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3919 Direntry_t *readdir (DIR *);
a0d0e21e 3920#endif
34b7f128
AMS		 3921 dSP;
3922
3923 SV *sv;
3924 I32 gimme = GIMME;
3925 GV *gv = (GV *)POPs;
a0d0e21e 3926 register Direntry_t *dp;
a0d0e21e
LW		 3927 register IO *io = GvIOn(gv);
3928
3929 if (!io || !IoDIRP(io))
3930 goto nope;
3931
34b7f128
AMS		 3932 do {
3933 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3934 if (!dp)
3935 break;
a0d0e21e 3936#ifdef DIRNAMLEN
34b7f128 3937 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3938#else
34b7f128 3939 sv = newSVpv(dp->d_name, 0);
fb73857a 3940#endif
3941#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3942 if (!(IoFLAGS(io) & IOf_UNTAINT))
3943 SvTAINTED_on(sv);
a0d0e21e 3944#endif
34b7f128 3945 XPUSHs(sv_2mortal(sv));
a0d0e21e 3946 }
34b7f128
AMS		 3947 while (gimme == G_ARRAY);
3948
3949 if (!dp && gimme != G_ARRAY)
3950 goto nope;
3951
a0d0e21e
LW		 3952 RETURN;
3953
3954nope:
3955 if (!errno)
93189314 3956 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3957 if (GIMME == G_ARRAY)
3958 RETURN;
3959 else
3960 RETPUSHUNDEF;
a0d0e21e
LW		 3961#endif
3962}
3963
3964PP(pp_telldir)
3965{
a0d0e21e 3966#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3967 dSP; dTARGET;
968dcd91
JH		 3968 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3969 /* XXX netbsd still seemed to.
3970 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3971 --JHI 1999-Feb-02 */
3972# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3973 long telldir (DIR *);
dfe9444c 3974# endif
a0d0e21e
LW		 3975 GV *gv = (GV*)POPs;
3976 register IO *io = GvIOn(gv);
3977
3978 if (!io || !IoDIRP(io))
3979 goto nope;
3980
6ad3d225 3981 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3982 RETURN;
3983nope:
3984 if (!errno)
93189314 3985 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3986 RETPUSHUNDEF;
3987#else
cea2e8a9 3988 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3989#endif
3990}
3991
3992PP(pp_seekdir)
3993{
a0d0e21e 3994#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3995 dSP;
a0d0e21e
LW		 3996 long along = POPl;
3997 GV *gv = (GV*)POPs;
3998 register IO *io = GvIOn(gv);
3999
4000 if (!io || !IoDIRP(io))
4001 goto nope;
4002
6ad3d225 4003 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4004
4005 RETPUSHYES;
4006nope:
4007 if (!errno)
93189314 4008 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4009 RETPUSHUNDEF;
4010#else
cea2e8a9 4011 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4012#endif
4013}
4014
4015PP(pp_rewinddir)
4016{
a0d0e21e 4017#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4018 dSP;
a0d0e21e
LW		 4019 GV *gv = (GV*)POPs;
4020 register IO *io = GvIOn(gv);
4021
4022 if (!io || !IoDIRP(io))
4023 goto nope;
4024
6ad3d225 4025 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4026 RETPUSHYES;
4027nope:
4028 if (!errno)
93189314 4029 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4030 RETPUSHUNDEF;
4031#else
cea2e8a9 4032 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4033#endif
4034}
4035
4036PP(pp_closedir)
4037{
a0d0e21e 4038#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4039 dSP;
a0d0e21e
LW		 4040 GV *gv = (GV*)POPs;
4041 register IO *io = GvIOn(gv);
4042
4043 if (!io || !IoDIRP(io))
4044 goto nope;
4045
4046#ifdef VOID_CLOSEDIR
6ad3d225 4047 PerlDir_close(IoDIRP(io));
a0d0e21e 4048#else
6ad3d225 4049 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4050 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4051 goto nope;
748a9306 4052 }
a0d0e21e
LW		 4053#endif
4054 IoDIRP(io) = 0;
4055
4056 RETPUSHYES;
4057nope:
4058 if (!errno)
93189314 4059 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4060 RETPUSHUNDEF;
4061#else
cea2e8a9 4062 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4063#endif
4064}
4065
4066/* Process control. */
4067
4068PP(pp_fork)
4069{
44a8e56a 4070#ifdef HAS_FORK
39644a26 4071 dSP; dTARGET;
761237fe 4072 Pid_t childpid;
a0d0e21e
LW		 4073 GV *tmpgv;
4074
4075 EXTEND(SP, 1);
45bc9206 4076 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4077 childpid = PerlProc_fork();
a0d0e21e
LW		 4078 if (childpid < 0)
4079 RETSETUNDEF;
4080 if (!childpid) {
4081 /*SUPPRESS 560*/
306196c3
MS		 4082 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4083 SvREADONLY_off(GvSV(tmpgv));
146174a9 4084 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4085 SvREADONLY_on(GvSV(tmpgv));
4086 }
4d76a344
RGS		 4087#ifdef THREADS_HAVE_PIDS
4088 PL_ppid = (IV)getppid();
4089#endif
3280af22 4090 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4091 }
4092 PUSHi(childpid);
4093 RETURN;
4094#else
146174a9 4095# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4096 dSP; dTARGET;
146174a9
CB		 4097 Pid_t childpid;
4098
4099 EXTEND(SP, 1);
4100 PERL_FLUSHALL_FOR_CHILD;
4101 childpid = PerlProc_fork();
60fa28ff
GS		 4102 if (childpid == -1)
4103 RETSETUNDEF;
146174a9
CB		 4104 PUSHi(childpid);
4105 RETURN;
4106# else
0322a713 4107 DIE(aTHX_ PL_no_func, "fork");
146174a9 4108# endif
a0d0e21e
LW		 4109#endif
4110}
4111
4112PP(pp_wait)
4113{
301e8125 4114#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4115 dSP; dTARGET;
761237fe 4116 Pid_t childpid;
a0d0e21e 4117 int argflags;
a0d0e21e 4118
4ffa73a3
JH		 4119 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4120 childpid = wait4pid(-1, &argflags, 0);
4121 else {
4122 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4123 errno == EINTR) {
4124 PERL_ASYNC_CHECK();
4125 }
0a0ada86 4126 }
68a29c53
GS		 4127# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4128 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4129 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4130# else
f86702cc 4131 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4132# endif
44a8e56a 4133 XPUSHi(childpid);
a0d0e21e
LW		 4134 RETURN;
4135#else
0322a713 4136 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4137#endif
4138}
4139
4140PP(pp_waitpid)
4141{
301e8125 4142#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4143 dSP; dTARGET;
2ec0bfb3
SG		 4144 Pid_t pid;
4145 Pid_t result;
a0d0e21e
LW		 4146 int optype;
4147 int argflags;
a0d0e21e 4148
a0d0e21e 4149 optype = POPi;
2ec0bfb3 4150 pid = TOPi;
4ffa73a3 4151 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4152 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4153 else {
2ec0bfb3 4154 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4155 errno == EINTR) {
4156 PERL_ASYNC_CHECK();
4157 }
0a0ada86 4158 }
68a29c53
GS		 4159# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4160 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4161 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4162# else
2ec0bfb3 4163 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4164# endif
2ec0bfb3 4165 SETi(result);
a0d0e21e
LW		 4166 RETURN;
4167#else
0322a713 4168 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4169#endif
4170}
4171
4172PP(pp_system)
4173{
39644a26 4174 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4175 I32 value;
2d8e6c8d 4176 STRLEN n_a;
76ffd3b9 4177 int result;
e7766f89 4178 I32 did_pipes = 0;
a0d0e21e 4179
bbd7eb8a
RD		 4180 if (PL_tainting) {
4181 TAINT_ENV();
4182 while (++MARK <= SP) {
4183 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4184 if (PL_tainted)
bbd7eb8a
RD		 4185 break;
4186 }
4187 MARK = ORIGMARK;
5a445156 4188 TAINT_PROPER("system");
a0d0e21e 4189 }
45bc9206 4190 PERL_FLUSHALL_FOR_CHILD;
273b0206 4191#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4192 {
eb160463
GS		 4193 Pid_t childpid;
4194 int pp[2];
4195
4196 if (PerlProc_pipe(pp) >= 0)
4197 did_pipes = 1;
4198 while ((childpid = PerlProc_fork()) == -1) {
4199 if (errno != EAGAIN) {
4200 value = -1;
4201 SP = ORIGMARK;
4202 PUSHi(value);
4203 if (did_pipes) {
4204 PerlLIO_close(pp[0]);
4205 PerlLIO_close(pp[1]);
4206 }
4207 RETURN;
4208 }
4209 sleep(5);
4210 }
4211 if (childpid > 0) {
4212 Sigsave_t ihand,qhand; /* place to save signals during system() */
4213 int status;
4214
4215 if (did_pipes)
4216 PerlLIO_close(pp[1]);
64ca3a65 4217#ifndef PERL_MICRO
eb160463
GS		 4218 rsignal_save(SIGINT, SIG_IGN, &ihand);
4219 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4220#endif
eb160463
GS		 4221 do {
4222 result = wait4pid(childpid, &status, 0);
4223 } while (result == -1 && errno == EINTR);
64ca3a65 4224#ifndef PERL_MICRO
eb160463
GS		 4225 (void)rsignal_restore(SIGINT, &ihand);
4226 (void)rsignal_restore(SIGQUIT, &qhand);
4227#endif
4228 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4229 do_execfree(); /* free any memory child malloced on fork */
4230 SP = ORIGMARK;
4231 if (did_pipes) {
4232 int errkid;
4233 int n = 0, n1;
4234
4235 while (n < sizeof(int)) {
4236 n1 = PerlLIO_read(pp[0],
4237 (void*)(((char*)&errkid)+n),
4238 (sizeof(int)) - n);
4239 if (n1 <= 0)
4240 break;
4241 n += n1;
4242 }
4243 PerlLIO_close(pp[0]);
4244 if (n) { /* Error */
4245 if (n != sizeof(int))
4246 DIE(aTHX_ "panic: kid popen errno read");
4247 errno = errkid; /* Propagate errno from kid */
4248 STATUS_CURRENT = -1;
4249 }
4250 }
4251 PUSHi(STATUS_CURRENT);
4252 RETURN;
4253 }
4254 if (did_pipes) {
4255 PerlLIO_close(pp[0]);
d5a9bfb0 4256#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4257 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4258#endif
eb160463 4259 }
e0a1f643
JH		 4260 if (PL_op->op_flags & OPf_STACKED) {
4261 SV *really = *++MARK;
4262 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4263 }
4264 else if (SP - MARK != 1)
4265 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4266 else {
4267 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4268 }
4269 PerlProc__exit(-1);
d5a9bfb0 4270 }
c3293030 4271#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4272 PL_statusvalue = 0;
4273 result = 0;
911d147d 4274 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4275 SV *really = *++MARK;
622913ab 4276# if defined(WIN32) || defined(OS2)
54725af6
GS		 4277 value = (I32)do_aspawn(really, MARK, SP);
4278# else
c5be433b 4279 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4280# endif
a0d0e21e 4281 }
54725af6 4282 else if (SP - MARK != 1) {
622913ab 4283# if defined(WIN32) || defined(OS2)
54725af6
GS		 4284 value = (I32)do_aspawn(Nullsv, MARK, SP);
4285# else
c5be433b 4286 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4287# endif
4288 }
a0d0e21e 4289 else {
c5be433b 4290 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4291 }
922b1888
GS		 4292 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4293 result = 1;
f86702cc 4294 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4295 do_execfree();
4296 SP = ORIGMARK;
922b1888 4297 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4298#endif /* !FORK or VMS */
4299 RETURN;
4300}
4301
4302PP(pp_exec)
4303{
39644a26 4304 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4305 I32 value;
2d8e6c8d 4306 STRLEN n_a;
a0d0e21e 4307
bbd7eb8a
RD		 4308 if (PL_tainting) {
4309 TAINT_ENV();
4310 while (++MARK <= SP) {
4311 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4312 if (PL_tainted)
bbd7eb8a
RD		 4313 break;
4314 }
4315 MARK = ORIGMARK;
5a445156 4316 TAINT_PROPER("exec");
bbd7eb8a 4317 }
45bc9206 4318 PERL_FLUSHALL_FOR_CHILD;
533c011a 4319 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4320 SV *really = *++MARK;
4321 value = (I32)do_aexec(really, MARK, SP);
4322 }
4323 else if (SP - MARK != 1)
4324#ifdef VMS
4325 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4326#else
092bebab
JH		 4327# ifdef __OPEN_VM
4328 {
c5be433b 4329 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4330 value = 0;
4331 }
4332# else
a0d0e21e 4333 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4334# endif
a0d0e21e
LW		 4335#endif
4336 else {
a0d0e21e 4337#ifdef VMS
2d8e6c8d 4338 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4339#else
092bebab 4340# ifdef __OPEN_VM
c5be433b 4341 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4342 value = 0;
4343# else
2d8e6c8d 4344 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4345# endif
a0d0e21e
LW		 4346#endif
4347 }
146174a9 4348
a0d0e21e
LW		 4349 SP = ORIGMARK;
4350 PUSHi(value);
4351 RETURN;
4352}
4353
4354PP(pp_kill)
4355{
9cad6237 4356#ifdef HAS_KILL
39644a26 4357 dSP; dMARK; dTARGET;
a0d0e21e 4358 I32 value;
533c011a 4359 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4360 SP = MARK;
4361 PUSHi(value);
4362 RETURN;
4363#else
0322a713 4364 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4365#endif
4366}
4367
4368PP(pp_getppid)
4369{
4370#ifdef HAS_GETPPID
39644a26 4371 dSP; dTARGET;
4d76a344
RGS		 4372# ifdef THREADS_HAVE_PIDS
4373 XPUSHi( PL_ppid );
4374# else
a0d0e21e 4375 XPUSHi( getppid() );
4d76a344 4376# endif
a0d0e21e
LW		 4377 RETURN;
4378#else
cea2e8a9 4379 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4380#endif
4381}
4382
4383PP(pp_getpgrp)
4384{
4385#ifdef HAS_GETPGRP
39644a26 4386 dSP; dTARGET;
d8a83dd3 4387 Pid_t pid;
9853a804 4388 Pid_t pgrp;
a0d0e21e
LW		 4389
4390 if (MAXARG < 1)
4391 pid = 0;
4392 else
4393 pid = SvIVx(POPs);
c3293030 4394#ifdef BSD_GETPGRP
9853a804 4395 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4396#else
146174a9 4397 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4398 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4399 pgrp = getpgrp();
a0d0e21e 4400#endif
9853a804 4401 XPUSHi(pgrp);
a0d0e21e
LW		 4402 RETURN;
4403#else
cea2e8a9 4404 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4405#endif
4406}
4407
4408PP(pp_setpgrp)
4409{
4410#ifdef HAS_SETPGRP
39644a26 4411 dSP; dTARGET;
d8a83dd3
JH		 4412 Pid_t pgrp;
4413 Pid_t pid;
a0d0e21e
LW		 4414 if (MAXARG < 2) {
4415 pgrp = 0;
4416 pid = 0;
4417 }
4418 else {
4419 pgrp = POPi;
4420 pid = TOPi;
4421 }
4422
4423 TAINT_PROPER("setpgrp");
c3293030
IZ		 4424#ifdef BSD_SETPGRP
4425 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4426#else
146174a9
CB		 4427 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4428 || (pid != 0 && pid != PerlProc_getpid()))
4429 {
4430 DIE(aTHX_ "setpgrp can't take arguments");
4431 }
a0d0e21e
LW		 4432 SETi( setpgrp() >= 0 );
4433#endif /* USE_BSDPGRP */
4434 RETURN;
4435#else
cea2e8a9 4436 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4437#endif
4438}
4439
4440PP(pp_getpriority)
4441{
a0d0e21e 4442#ifdef HAS_GETPRIORITY
9cad6237 4443 dSP; dTARGET;
d05c1ba0
JH		 4444 int who = POPi;
4445 int which = TOPi;
a0d0e21e
LW		 4446 SETi( getpriority(which, who) );
4447 RETURN;
4448#else
cea2e8a9 4449 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4450#endif
4451}
4452
4453PP(pp_setpriority)
4454{
a0d0e21e 4455#ifdef HAS_SETPRIORITY
9cad6237 4456 dSP; dTARGET;
d05c1ba0
JH		 4457 int niceval = POPi;
4458 int who = POPi;
4459 int which = TOPi;
a0d0e21e
LW		 4460 TAINT_PROPER("setpriority");
4461 SETi( setpriority(which, who, niceval) >= 0 );
4462 RETURN;
4463#else
cea2e8a9 4464 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4465#endif
4466}
4467
4468/* Time calls. */
4469
4470PP(pp_time)
4471{
39644a26 4472 dSP; dTARGET;
cbdc8872 4473#ifdef BIG_TIME
4474 XPUSHn( time(Null(Time_t*)) );
4475#else
a0d0e21e 4476 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4477#endif
a0d0e21e
LW		 4478 RETURN;
4479}
4480
a0d0e21e
LW		 4481PP(pp_tms)
4482{
9cad6237 4483#ifdef HAS_TIMES
39644a26 4484 dSP;
a0d0e21e 4485 EXTEND(SP, 4);
a0d0e21e 4486#ifndef VMS
3280af22 4487 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4488#else
6b88bc9c 4489 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4490 /* struct tms, though same data */
4491 /* is returned. */
a0d0e21e
LW		 4492#endif
4493
5311654c 4494 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4495 if (GIMME == G_ARRAY) {
5311654c
JH		 4496 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4497 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4498 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4499 }
4500 RETURN;
9cad6237 4501#else
2f42fcb0
JH		 4502# ifdef PERL_MICRO
4503 dSP;
4504 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4505 EXTEND(SP, 4);
4506 if (GIMME == G_ARRAY) {
4507 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4508 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4509 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4510 }
4511 RETURN;
4512# else
9cad6237 4513 DIE(aTHX_ "times not implemented");
2f42fcb0 4514# endif
55497cff 4515#endif /* HAS_TIMES */
a0d0e21e
LW		 4516}
4517
4518PP(pp_localtime)
4519{
cea2e8a9 4520 return pp_gmtime();
a0d0e21e
LW		 4521}
4522
4523PP(pp_gmtime)
4524{
39644a26 4525 dSP;
a0d0e21e 4526 Time_t when;
bfed75c6
AL		 4527 const struct tm *tmbuf;
4528 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4529 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
a0d0e21e
LW		 4530 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4531
4532 if (MAXARG < 1)
4533 (void)time(&when);
4534 else
cbdc8872 4535#ifdef BIG_TIME
4536 when = (Time_t)SvNVx(POPs);
4537#else
a0d0e21e 4538 when = (Time_t)SvIVx(POPs);
cbdc8872 4539#endif
a0d0e21e 4540
533c011a 4541 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4542 tmbuf = localtime(&when);
4543 else
4544 tmbuf = gmtime(&when);
4545
a0d0e21e 4546 if (GIMME != G_ARRAY) {
46fc3d4c 4547 SV *tsv;
9a5ff6d9
AB		 4548 EXTEND(SP, 1);
4549 EXTEND_MORTAL(1);
a0d0e21e
LW		 4550 if (!tmbuf)
4551 RETPUSHUNDEF;
be28567c 4552 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4553 dayname[tmbuf->tm_wday],
4554 monname[tmbuf->tm_mon],
be28567c
GS		 4555 tmbuf->tm_mday,
4556 tmbuf->tm_hour,
4557 tmbuf->tm_min,
4558 tmbuf->tm_sec,
4559 tmbuf->tm_year + 1900);
46fc3d4c 4560 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4561 }
4562 else if (tmbuf) {
9a5ff6d9
AB		 4563 EXTEND(SP, 9);
4564 EXTEND_MORTAL(9);
4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4566 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4567 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4568 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4569 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4570 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4571 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4574 }
4575 RETURN;
4576}
4577
4578PP(pp_alarm)
4579{
9cad6237 4580#ifdef HAS_ALARM
39644a26 4581 dSP; dTARGET;
a0d0e21e 4582 int anum;
a0d0e21e
LW		 4583 anum = POPi;
4584 anum = alarm((unsigned int)anum);
4585 EXTEND(SP, 1);
4586 if (anum < 0)
4587 RETPUSHUNDEF;
c6419e06 4588 PUSHi(anum);
a0d0e21e
LW		 4589 RETURN;
4590#else
0322a713 4591 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4592#endif
4593}
4594
4595PP(pp_sleep)
4596{
39644a26 4597 dSP; dTARGET;
a0d0e21e
LW		 4598 I32 duration;
4599 Time_t lasttime;
4600 Time_t when;
4601
4602 (void)time(&lasttime);
4603 if (MAXARG < 1)
76e3520e 4604 PerlProc_pause();
a0d0e21e
LW		 4605 else {
4606 duration = POPi;
76e3520e 4607 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4608 }
4609 (void)time(&when);
4610 XPUSHi(when - lasttime);
4611 RETURN;
4612}
4613
4614/* Shared memory. */
4615
4616PP(pp_shmget)
4617{
cea2e8a9 4618 return pp_semget();
a0d0e21e
LW		 4619}
4620
4621PP(pp_shmctl)
4622{
cea2e8a9 4623 return pp_semctl();
a0d0e21e
LW		 4624}
4625
4626PP(pp_shmread)
4627{
cea2e8a9 4628 return pp_shmwrite();
a0d0e21e
LW		 4629}
4630
4631PP(pp_shmwrite)
4632{
4633#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4634 dSP; dMARK; dTARGET;
533c011a 4635 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4636 SP = MARK;
4637 PUSHi(value);
4638 RETURN;
4639#else
cea2e8a9 4640 return pp_semget();
a0d0e21e
LW		 4641#endif
4642}
4643
4644/* Message passing. */
4645
4646PP(pp_msgget)
4647{
cea2e8a9 4648 return pp_semget();
a0d0e21e
LW		 4649}
4650
4651PP(pp_msgctl)
4652{
cea2e8a9 4653 return pp_semctl();
a0d0e21e
LW		 4654}
4655
4656PP(pp_msgsnd)
4657{
4658#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4659 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4660 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4661 SP = MARK;
4662 PUSHi(value);
4663 RETURN;
4664#else
cea2e8a9 4665 return pp_semget();
a0d0e21e
LW		 4666#endif
4667}
4668
4669PP(pp_msgrcv)
4670{
4671#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4672 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4673 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4674 SP = MARK;
4675 PUSHi(value);
4676 RETURN;
4677#else
cea2e8a9 4678 return pp_semget();
a0d0e21e
LW		 4679#endif
4680}
4681
4682/* Semaphores. */
4683
4684PP(pp_semget)
4685{
4686#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4687 dSP; dMARK; dTARGET;
533c011a 4688 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4689 SP = MARK;
4690 if (anum == -1)
4691 RETPUSHUNDEF;
4692 PUSHi(anum);
4693 RETURN;
4694#else
cea2e8a9 4695 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4696#endif
4697}
4698
4699PP(pp_semctl)
4700{
4701#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4702 dSP; dMARK; dTARGET;
533c011a 4703 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4704 SP = MARK;
4705 if (anum == -1)
4706 RETSETUNDEF;
4707 if (anum != 0) {
4708 PUSHi(anum);
4709 }
4710 else {
8903cb82 4711 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4712 }
4713 RETURN;
4714#else
cea2e8a9 4715 return pp_semget();
a0d0e21e
LW		 4716#endif
4717}
4718
4719PP(pp_semop)
4720{
4721#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4722 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4723 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4724 SP = MARK;
4725 PUSHi(value);
4726 RETURN;
4727#else
cea2e8a9 4728 return pp_semget();
a0d0e21e
LW		 4729#endif
4730}
4731
4732/* Get system info. */
4733
4734PP(pp_ghbyname)
4735{
693762b4 4736#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4737 return pp_ghostent();
a0d0e21e 4738#else
cea2e8a9 4739 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4740#endif
4741}
4742
4743PP(pp_ghbyaddr)
4744{
693762b4 4745#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4746 return pp_ghostent();
a0d0e21e 4747#else
cea2e8a9 4748 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4749#endif
4750}
4751
4752PP(pp_ghostent)
4753{
693762b4 4754#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4755 dSP;
533c011a 4756 I32 which = PL_op->op_type;
a0d0e21e
LW		 4757 register char **elem;
4758 register SV *sv;
dc45a647 4759#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4760 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4761 struct hostent *gethostbyname(Netdb_name_t);
4762 struct hostent *gethostent(void);
a0d0e21e
LW		 4763#endif
4764 struct hostent *hent;
4765 unsigned long len;
2d8e6c8d 4766 STRLEN n_a;
a0d0e21e
LW		 4767
4768 EXTEND(SP, 10);
edd309b7 4769 if (which == OP_GHBYNAME) {
dc45a647 4770#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4771 char* name = POPpbytex;
4772 hent = PerlSock_gethostbyname(name);
dc45a647 4773#else
cea2e8a9 4774 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4775#endif
edd309b7 4776 }
a0d0e21e 4777 else if (which == OP_GHBYADDR) {
dc45a647 4778#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4779 int addrtype = POPi;
748a9306 4780 SV *addrsv = POPs;
a0d0e21e 4781 STRLEN addrlen;
595ae481 4782 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4783
4599a1de 4784 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4785#else
cea2e8a9 4786 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4787#endif
a0d0e21e
LW		 4788 }
4789 else
4790#ifdef HAS_GETHOSTENT
6ad3d225 4791 hent = PerlSock_gethostent();
a0d0e21e 4792#else
cea2e8a9 4793 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4794#endif
4795
4796#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4797 if (!hent) {
4798#ifdef USE_REENTRANT_API
4799# ifdef USE_GETHOSTENT_ERRNO
4800 h_errno = PL_reentrant_buffer->_gethostent_errno;
4801# endif
4802#endif
4803 STATUS_NATIVE_SET(h_errno);
4804 }
a0d0e21e
LW		 4805#endif
4806
4807 if (GIMME != G_ARRAY) {
4808 PUSHs(sv = sv_newmortal());
4809 if (hent) {
4810 if (which == OP_GHBYNAME) {
fd0af264 4811 if (hent->h_addr)
4812 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4813 }
4814 else
4815 sv_setpv(sv, (char*)hent->h_name);
4816 }
4817 RETURN;
4818 }
4819
4820 if (hent) {
3280af22 4821 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4822 sv_setpv(sv, (char*)hent->h_name);
3280af22 4823 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4824 for (elem = hent->h_aliases; elem && *elem; elem++) {
4825 sv_catpv(sv, *elem);
4826 if (elem[1])
4827 sv_catpvn(sv, " ", 1);
4828 }
3280af22 4829 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4830 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4832 len = hent->h_length;
1e422769 4833 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4834#ifdef h_addr
4835 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4836 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4837 sv_setpvn(sv, *elem, len);
4838 }
4839#else
6b88bc9c 4840 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4841 if (hent->h_addr)
4842 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4843#endif /* h_addr */
4844 }
4845 RETURN;
4846#else
cea2e8a9 4847 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4848#endif
4849}
4850
4851PP(pp_gnbyname)
4852{
693762b4 4853#ifdef HAS_GETNETBYNAME
cea2e8a9 4854 return pp_gnetent();
a0d0e21e 4855#else
cea2e8a9 4856 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4857#endif
4858}
4859
4860PP(pp_gnbyaddr)
4861{
693762b4 4862#ifdef HAS_GETNETBYADDR
cea2e8a9 4863 return pp_gnetent();
a0d0e21e 4864#else
cea2e8a9 4865 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4866#endif
4867}
4868
4869PP(pp_gnetent)
4870{
693762b4 4871#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4872 dSP;
533c011a 4873 I32 which = PL_op->op_type;
a0d0e21e
LW		 4874 register char **elem;
4875 register SV *sv;
dc45a647 4876#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4877 struct netent *getnetbyaddr(Netdb_net_t, int);
4878 struct netent *getnetbyname(Netdb_name_t);
4879 struct netent *getnetent(void);
8ac85365 4880#endif
a0d0e21e 4881 struct netent *nent;
2d8e6c8d 4882 STRLEN n_a;
a0d0e21e 4883
edd309b7 4884 if (which == OP_GNBYNAME){
dc45a647 4885#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4886 char *name = POPpbytex;
4887 nent = PerlSock_getnetbyname(name);
dc45a647 4888#else
cea2e8a9 4889 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4890#endif
edd309b7 4891 }
a0d0e21e 4892 else if (which == OP_GNBYADDR) {
dc45a647 4893#ifdef HAS_GETNETBYADDR
a0d0e21e 4894 int addrtype = POPi;
3bb7c1b4 4895 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4896 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4897#else
cea2e8a9 4898 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4899#endif
a0d0e21e
LW		 4900 }
4901 else
dc45a647 4902#ifdef HAS_GETNETENT
76e3520e 4903 nent = PerlSock_getnetent();
dc45a647 4904#else
cea2e8a9 4905 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4906#endif
a0d0e21e 4907
10bc17b6
JH		 4908#ifdef HOST_NOT_FOUND
4909 if (!nent) {
4910#ifdef USE_REENTRANT_API
4911# ifdef USE_GETNETENT_ERRNO
4912 h_errno = PL_reentrant_buffer->_getnetent_errno;
4913# endif
4914#endif
4915 STATUS_NATIVE_SET(h_errno);
4916 }
4917#endif
4918
a0d0e21e
LW		 4919 EXTEND(SP, 4);
4920 if (GIMME != G_ARRAY) {
4921 PUSHs(sv = sv_newmortal());
4922 if (nent) {
4923 if (which == OP_GNBYNAME)
1e422769 4924 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4925 else
4926 sv_setpv(sv, nent->n_name);
4927 }
4928 RETURN;
4929 }
4930
4931 if (nent) {
3280af22 4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4933 sv_setpv(sv, nent->n_name);
3280af22 4934 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4935 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4936 sv_catpv(sv, *elem);
4937 if (elem[1])
4938 sv_catpvn(sv, " ", 1);
4939 }
3280af22 4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4941 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4942 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4943 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4944 }
4945
4946 RETURN;
4947#else
cea2e8a9 4948 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4949#endif
4950}
4951
4952PP(pp_gpbyname)
4953{
693762b4 4954#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4955 return pp_gprotoent();
a0d0e21e 4956#else
cea2e8a9 4957 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4958#endif
4959}
4960
4961PP(pp_gpbynumber)
4962{
693762b4 4963#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4964 return pp_gprotoent();
a0d0e21e 4965#else
cea2e8a9 4966 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4967#endif
4968}
4969
4970PP(pp_gprotoent)
4971{
693762b4 4972#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4973 dSP;
533c011a 4974 I32 which = PL_op->op_type;
a0d0e21e 4975 register char **elem;
301e8125 4976 register SV *sv;
dc45a647 4977#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4978 struct protoent *getprotobyname(Netdb_name_t);
4979 struct protoent *getprotobynumber(int);
4980 struct protoent *getprotoent(void);
8ac85365 4981#endif
a0d0e21e 4982 struct protoent *pent;
2d8e6c8d 4983 STRLEN n_a;
a0d0e21e 4984
edd309b7 4985 if (which == OP_GPBYNAME) {
e5c9fcd0 4986#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4987 char* name = POPpbytex;
4988 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4989#else
cea2e8a9 4990 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4991#endif
edd309b7
JH		 4992 }
4993 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4994#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4995 int number = POPi;
4996 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4997#else
edd309b7 4998 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4999#endif
edd309b7 5000 }
a0d0e21e 5001 else
e5c9fcd0 5002#ifdef HAS_GETPROTOENT
6ad3d225 5003 pent = PerlSock_getprotoent();
e5c9fcd0 5004#else
cea2e8a9 5005 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5006#endif
a0d0e21e
LW		 5007
5008 EXTEND(SP, 3);
5009 if (GIMME != G_ARRAY) {
5010 PUSHs(sv = sv_newmortal());
5011 if (pent) {
5012 if (which == OP_GPBYNAME)
1e422769 5013 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5014 else
5015 sv_setpv(sv, pent->p_name);
5016 }
5017 RETURN;
5018 }
5019
5020 if (pent) {
3280af22 5021 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5022 sv_setpv(sv, pent->p_name);
3280af22 5023 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5024 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5025 sv_catpv(sv, *elem);
5026 if (elem[1])
5027 sv_catpvn(sv, " ", 1);
5028 }
3280af22 5029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5030 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5031 }
5032
5033 RETURN;
5034#else
cea2e8a9 5035 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5036#endif
5037}
5038
5039PP(pp_gsbyname)
5040{
9ec75305 5041#ifdef HAS_GETSERVBYNAME
cea2e8a9 5042 return pp_gservent();
a0d0e21e 5043#else
cea2e8a9 5044 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5045#endif
5046}
5047
5048PP(pp_gsbyport)
5049{
9ec75305 5050#ifdef HAS_GETSERVBYPORT
cea2e8a9 5051 return pp_gservent();
a0d0e21e 5052#else
cea2e8a9 5053 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5054#endif
5055}
5056
5057PP(pp_gservent)
5058{
693762b4 5059#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5060 dSP;
533c011a 5061 I32 which = PL_op->op_type;
a0d0e21e
LW		 5062 register char **elem;
5063 register SV *sv;
dc45a647 5064#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5065 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5066 struct servent *getservbyport(int, Netdb_name_t);
5067 struct servent *getservent(void);
8ac85365 5068#endif
a0d0e21e 5069 struct servent *sent;
2d8e6c8d 5070 STRLEN n_a;
a0d0e21e
LW		 5071
5072 if (which == OP_GSBYNAME) {
dc45a647 5073#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5074 char *proto = POPpbytex;
5075 char *name = POPpbytex;
a0d0e21e
LW		 5076
5077 if (proto && !*proto)
5078 proto = Nullch;
5079
6ad3d225 5080 sent = PerlSock_getservbyname(name, proto);
dc45a647 5081#else
cea2e8a9 5082 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5083#endif
a0d0e21e
LW		 5084 }
5085 else if (which == OP_GSBYPORT) {
dc45a647 5086#ifdef HAS_GETSERVBYPORT
42e0c139 5087 char *proto = POPpbytex;
eb160463 5088 unsigned short port = (unsigned short)POPu;
a0d0e21e 5089
2b872cca
SR		 5090 if (proto && !*proto)
5091 proto = Nullch;
5092
36477c24 5093#ifdef HAS_HTONS
6ad3d225 5094 port = PerlSock_htons(port);
36477c24 5095#endif
6ad3d225 5096 sent = PerlSock_getservbyport(port, proto);
dc45a647 5097#else
cea2e8a9 5098 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5099#endif
a0d0e21e
LW		 5100 }
5101 else
e5c9fcd0 5102#ifdef HAS_GETSERVENT
6ad3d225 5103 sent = PerlSock_getservent();
e5c9fcd0 5104#else
cea2e8a9 5105 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5106#endif
a0d0e21e
LW		 5107
5108 EXTEND(SP, 4);
5109 if (GIMME != G_ARRAY) {
5110 PUSHs(sv = sv_newmortal());
5111 if (sent) {
5112 if (which == OP_GSBYNAME) {
5113#ifdef HAS_NTOHS
6ad3d225 5114 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5115#else
1e422769 5116 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5117#endif
5118 }
5119 else
5120 sv_setpv(sv, sent->s_name);
5121 }
5122 RETURN;
5123 }
5124
5125 if (sent) {
3280af22 5126 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5127 sv_setpv(sv, sent->s_name);
3280af22 5128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5129 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5130 sv_catpv(sv, *elem);
5131 if (elem[1])
5132 sv_catpvn(sv, " ", 1);
5133 }
3280af22 5134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5135#ifdef HAS_NTOHS
76e3520e 5136 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5137#else
1e422769 5138 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5139#endif
3280af22 5140 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5141 sv_setpv(sv, sent->s_proto);
5142 }
5143
5144 RETURN;
5145#else
cea2e8a9 5146 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5147#endif
5148}
5149
5150PP(pp_shostent)
5151{
693762b4 5152#ifdef HAS_SETHOSTENT
9cad6237 5153 dSP;
76e3520e 5154 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5155 RETSETYES;
5156#else
cea2e8a9 5157 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5158#endif
5159}
5160
5161PP(pp_snetent)
5162{
693762b4 5163#ifdef HAS_SETNETENT
9cad6237 5164 dSP;
76e3520e 5165 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5166 RETSETYES;
5167#else
cea2e8a9 5168 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5169#endif
5170}
5171
5172PP(pp_sprotoent)
5173{
693762b4 5174#ifdef HAS_SETPROTOENT
9cad6237 5175 dSP;
76e3520e 5176 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5177 RETSETYES;
5178#else
cea2e8a9 5179 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5180#endif
5181}
5182
5183PP(pp_sservent)
5184{
693762b4 5185#ifdef HAS_SETSERVENT
9cad6237 5186 dSP;
76e3520e 5187 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5188 RETSETYES;
5189#else
cea2e8a9 5190 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5191#endif
5192}
5193
5194PP(pp_ehostent)
5195{
693762b4 5196#ifdef HAS_ENDHOSTENT
9cad6237 5197 dSP;
76e3520e 5198 PerlSock_endhostent();
924508f0 5199 EXTEND(SP,1);
a0d0e21e
LW		 5200 RETPUSHYES;
5201#else
cea2e8a9 5202 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5203#endif
5204}
5205
5206PP(pp_enetent)
5207{
693762b4 5208#ifdef HAS_ENDNETENT
9cad6237 5209 dSP;
76e3520e 5210 PerlSock_endnetent();
924508f0 5211 EXTEND(SP,1);
a0d0e21e
LW		 5212 RETPUSHYES;
5213#else
cea2e8a9 5214 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5215#endif
5216}
5217
5218PP(pp_eprotoent)
5219{
693762b4 5220#ifdef HAS_ENDPROTOENT
9cad6237 5221 dSP;
76e3520e 5222 PerlSock_endprotoent();
924508f0 5223 EXTEND(SP,1);
a0d0e21e
LW		 5224 RETPUSHYES;
5225#else
cea2e8a9 5226 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5227#endif
5228}
5229
5230PP(pp_eservent)
5231{
693762b4 5232#ifdef HAS_ENDSERVENT
9cad6237 5233 dSP;
76e3520e 5234 PerlSock_endservent();
924508f0 5235 EXTEND(SP,1);
a0d0e21e
LW		 5236 RETPUSHYES;
5237#else
cea2e8a9 5238 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5239#endif
5240}
5241
5242PP(pp_gpwnam)
5243{
5244#ifdef HAS_PASSWD
cea2e8a9 5245 return pp_gpwent();
a0d0e21e 5246#else
cea2e8a9 5247 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5248#endif
5249}
5250
5251PP(pp_gpwuid)
5252{
5253#ifdef HAS_PASSWD
cea2e8a9 5254 return pp_gpwent();
a0d0e21e 5255#else
cea2e8a9 5256 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5257#endif
5258}
5259
5260PP(pp_gpwent)
5261{
0994c4d0 5262#ifdef HAS_PASSWD
9cad6237 5263 dSP;
533c011a 5264 I32 which = PL_op->op_type;
a0d0e21e 5265 register SV *sv;
2d8e6c8d 5266 STRLEN n_a;
e3aefe8d 5267 struct passwd *pwent = NULL;
301e8125 5268 /*
bcf53261
JH		 5269 * We currently support only the SysV getsp* shadow password interface.
5270 * The interface is declared in <shadow.h> and often one needs to link
5271 * with -lsecurity or some such.
5272 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5273 * (and SCO?)
5274 *
5275 * AIX getpwnam() is clever enough to return the encrypted password
5276 * only if the caller (euid?) is root.
5277 *
e549f1c5 5278 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5279 * seem to contain more than one interface for accessing the shadow
5280 * password databases, possibly for compatibility reasons.
3813c136 5281 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5282 * are much more complicated, but also very similar to each other.
5283 *
5284 * <sys/types.h>
5285 * <sys/security.h>
5286 * <prot.h>
5287 * struct pr_passwd *getprpw*();
5288 * The password is in
3813c136
JH		 5289 * char getprpw*(...).ufld.fd_encrypt[]
5290 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5291 *
5292 * <sys/types.h>
5293 * <sys/security.h>
5294 * <prot.h>
5295 * struct es_passwd *getespw*();
5296 * The password is in
5297 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5298 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5299 *
e1920a95 5300 * <userpw.h> (AIX)
e549f1c5
JH		 5301 * struct userpw *getuserpw();
5302 * The password is in
5303 * char *(getuserpw(...)).spw_upw_passwd
5304 * (but the de facto standard getpwnam() should work okay)
5305 *
3813c136 5306 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5307 *
5308 * In HP-UX for getprpw*() the manual page claims that one should include
5309 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5310 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5311 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5312 *
5313 * Note that <sys/security.h> is already probed for, but currently
5314 * it is only included in special cases.
301e8125 5315 *
bcf53261
JH		 5316 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5317 * be preferred interface, even though also the getprpw*() interface
5318 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5319 * One also needs to call set_auth_parameters() in main() before
5320 * doing anything else, whether one is using getespw*() or getprpw*().
5321 *
5322 * Note that accessing the shadow databases can be magnitudes
5323 * slower than accessing the standard databases.
bcf53261
JH		 5324 *
5325 * --jhi
5326 */
a0d0e21e 5327
9e5f0c48
JH		 5328# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5329 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5330 * the pw_comment is left uninitialized. */
5331 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5332# endif
5333
e3aefe8d
JH		 5334 switch (which) {
5335 case OP_GPWNAM:
edd309b7
JH		 5336 {
5337 char* name = POPpbytex;
5338 pwent = getpwnam(name);
5339 }
5340 break;
e3aefe8d 5341 case OP_GPWUID:
edd309b7
JH		 5342 {
5343 Uid_t uid = POPi;
5344 pwent = getpwuid(uid);
5345 }
e3aefe8d
JH		 5346 break;
5347 case OP_GPWENT:
1883634f 5348# ifdef HAS_GETPWENT
e3aefe8d 5349 pwent = getpwent();
faea9016
IRC		 5350#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5351 if (pwent) pwent = getpwnam(pwent->pw_name);
5352#endif
1883634f 5353# else
a45d1c96 5354 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5355# endif
e3aefe8d
JH		 5356 break;
5357 }
8c0bfa08 5358
a0d0e21e
LW		 5359 EXTEND(SP, 10);
5360 if (GIMME != G_ARRAY) {
5361 PUSHs(sv = sv_newmortal());
5362 if (pwent) {
5363 if (which == OP_GPWNAM)
1883634f 5364# if Uid_t_sign <= 0
1e422769 5365 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5366# else
23dcd6c8 5367 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5368# endif
a0d0e21e
LW		 5369 else
5370 sv_setpv(sv, pwent->pw_name);
5371 }
5372 RETURN;
5373 }
5374
5375 if (pwent) {
3280af22 5376 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5377 sv_setpv(sv, pwent->pw_name);
6ee623d5 5378
3280af22 5379 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5380 SvPOK_off(sv);
5381 /* If we have getspnam(), we try to dig up the shadow
5382 * password. If we are underprivileged, the shadow
5383 * interface will set the errno to EACCES or similar,
5384 * and return a null pointer. If this happens, we will
5385 * use the dummy password (usually "*" or "x") from the
5386 * standard password database.
5387 *
5388 * In theory we could skip the shadow call completely
5389 * if euid != 0 but in practice we cannot know which
5390 * security measures are guarding the shadow databases
5391 * on a random platform.
5392 *
5393 * Resist the urge to use additional shadow interfaces.
5394 * Divert the urge to writing an extension instead.
5395 *
5396 * --jhi */
e549f1c5
JH		 5397 /* Some AIX setups falsely(?) detect some getspnam(), which
5398 * has a different API than the Solaris/IRIX one. */
5399# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5400 {
5401 struct spwd *spwent;
5402 int saverrno; /* Save and restore errno so that
5403 * underprivileged attempts seem
5404 * to have never made the unsccessful
5405 * attempt to retrieve the shadow password. */
5406
5407 saverrno = errno;
5408 spwent = getspnam(pwent->pw_name);
5409 errno = saverrno;
5410 if (spwent && spwent->sp_pwdp)
5411 sv_setpv(sv, spwent->sp_pwdp);
5412 }
f1066039 5413# endif
e020c87d 5414# ifdef PWPASSWD
3813c136
JH		 5415 if (!SvPOK(sv)) /* Use the standard password, then. */
5416 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5417# endif
3813c136 5418
1883634f 5419# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5420 /* passwd is tainted because user himself can diddle with it.
5421 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5422 SvTAINTED_on(sv);
1883634f 5423# endif
6ee623d5 5424
3280af22 5425 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5426# if Uid_t_sign <= 0
1e422769 5427 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5428# else
23dcd6c8 5429 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5430# endif
6ee623d5 5431
3280af22 5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5433# if Uid_t_sign <= 0
1e422769 5434 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5435# else
23dcd6c8 5436 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5437# endif
3813c136
JH		 5438 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5439 * because of the poor interface of the Perl getpw*(),
5440 * not because there's some standard/convention saying so.
5441 * A better interface would have been to return a hash,
5442 * but we are accursed by our history, alas. --jhi. */
3280af22 5443 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5444# ifdef PWCHANGE
1e422769 5445 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5446# else
1883634f
JH		 5447# ifdef PWQUOTA
5448 sv_setiv(sv, (IV)pwent->pw_quota);
5449# else
a1757be1 5450# ifdef PWAGE
a0d0e21e 5451 sv_setpv(sv, pwent->pw_age);
a1757be1 5452# endif
6ee623d5
GS		 5453# endif
5454# endif
6ee623d5 5455
3813c136
JH		 5456 /* pw_class and pw_comment are mutually exclusive--.
5457 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5459# ifdef PWCLASS
a0d0e21e 5460 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5461# else
5462# ifdef PWCOMMENT
a0d0e21e 5463 sv_setpv(sv, pwent->pw_comment);
1883634f 5464# endif
6ee623d5 5465# endif
6ee623d5 5466
3280af22 5467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5468# ifdef PWGECOS
a0d0e21e 5469 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5470# endif
5471# ifndef INCOMPLETE_TAINTS
d2719217 5472 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5473 SvTAINTED_on(sv);
1883634f 5474# endif
6ee623d5 5475
3280af22 5476 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5477 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5478
3280af22 5479 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5480 sv_setpv(sv, pwent->pw_shell);
1883634f 5481# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5482 /* pw_shell is tainted because user himself can diddle with it. */
5483 SvTAINTED_on(sv);
1883634f 5484# endif
6ee623d5 5485
1883634f 5486# ifdef PWEXPIRE
6b88bc9c 5487 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5488 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5489# endif
a0d0e21e
LW		 5490 }
5491 RETURN;
5492#else
cea2e8a9 5493 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5494#endif
5495}
5496
5497PP(pp_spwent)
5498{
d493b042 5499#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5500 dSP;
a0d0e21e
LW		 5501 setpwent();
5502 RETPUSHYES;
5503#else
cea2e8a9 5504 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5505#endif
5506}
5507
5508PP(pp_epwent)
5509{
28e8609d 5510#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5511 dSP;
a0d0e21e
LW		 5512 endpwent();
5513 RETPUSHYES;
5514#else
cea2e8a9 5515 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5516#endif
5517}
5518
5519PP(pp_ggrnam)
5520{
5521#ifdef HAS_GROUP
cea2e8a9 5522 return pp_ggrent();
a0d0e21e 5523#else
cea2e8a9 5524 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5525#endif
5526}
5527
5528PP(pp_ggrgid)
5529{
5530#ifdef HAS_GROUP
cea2e8a9 5531 return pp_ggrent();
a0d0e21e 5532#else
cea2e8a9 5533 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5534#endif
5535}
5536
5537PP(pp_ggrent)
5538{
0994c4d0 5539#ifdef HAS_GROUP
9cad6237 5540 dSP;
533c011a 5541 I32 which = PL_op->op_type;
a0d0e21e
LW		 5542 register char **elem;
5543 register SV *sv;
5544 struct group *grent;
2d8e6c8d 5545 STRLEN n_a;
a0d0e21e 5546
edd309b7
JH		 5547 if (which == OP_GGRNAM) {
5548 char* name = POPpbytex;
5549 grent = (struct group *)getgrnam(name);
5550 }
5551 else if (which == OP_GGRGID) {
5552 Gid_t gid = POPi;
5553 grent = (struct group *)getgrgid(gid);
5554 }
a0d0e21e 5555 else
0994c4d0 5556#ifdef HAS_GETGRENT
a0d0e21e 5557 grent = (struct group *)getgrent();
0994c4d0
JH		 5558#else
5559 DIE(aTHX_ PL_no_func, "getgrent");
5560#endif
a0d0e21e
LW		 5561
5562 EXTEND(SP, 4);
5563 if (GIMME != G_ARRAY) {
5564 PUSHs(sv = sv_newmortal());
5565 if (grent) {
5566 if (which == OP_GGRNAM)
1e422769 5567 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5568 else
5569 sv_setpv(sv, grent->gr_name);
5570 }
5571 RETURN;
5572 }
5573
5574 if (grent) {
3280af22 5575 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5576 sv_setpv(sv, grent->gr_name);
28e8609d 5577
3280af22 5578 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5579#ifdef GRPASSWD
a0d0e21e 5580 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5581#endif
5582
3280af22 5583 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5584 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5585
5b56e7c5 5586#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5587 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5588 /* In UNICOS/mk (_CRAYMPP) the multithreading
5589 * versions (getgrnam_r, getgrgid_r)
5590 * seem to return an illegal pointer
5591 * as the group members list, gr_mem.
5592 * getgrent() doesn't even have a _r version
5593 * but the gr_mem is poisonous anyway.
5594 * So yes, you cannot get the list of group
5595 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5596 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5597 sv_catpv(sv, *elem);
5598 if (elem[1])
5599 sv_catpvn(sv, " ", 1);
5600 }
3d7e8424 5601#endif
a0d0e21e
LW		 5602 }
5603
5604 RETURN;
5605#else
cea2e8a9 5606 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5607#endif
5608}
5609
5610PP(pp_sgrent)
5611{
28e8609d 5612#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5613 dSP;
a0d0e21e
LW		 5614 setgrent();
5615 RETPUSHYES;
5616#else
cea2e8a9 5617 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5618#endif
5619}
5620
5621PP(pp_egrent)
5622{
28e8609d 5623#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5624 dSP;
a0d0e21e
LW		 5625 endgrent();
5626 RETPUSHYES;
5627#else
cea2e8a9 5628 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5629#endif
5630}
5631
5632PP(pp_getlogin)
5633{
a0d0e21e 5634#ifdef HAS_GETLOGIN
9cad6237 5635 dSP; dTARGET;
a0d0e21e
LW		 5636 char *tmps;
5637 EXTEND(SP, 1);
76e3520e 5638 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5639 RETPUSHUNDEF;
5640 PUSHp(tmps, strlen(tmps));
5641 RETURN;
5642#else
cea2e8a9 5643 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5644#endif
5645}
5646
5647/* Miscellaneous. */
5648
5649PP(pp_syscall)
5650{
d2719217 5651#ifdef HAS_SYSCALL
39644a26 5652 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5653 register I32 items = SP - MARK;
5654 unsigned long a[20];
5655 register I32 i = 0;
5656 I32 retval = -1;
2d8e6c8d 5657 STRLEN n_a;
a0d0e21e 5658
3280af22 5659 if (PL_tainting) {
a0d0e21e 5660 while (++MARK <= SP) {
bbce6d69 5661 if (SvTAINTED(*MARK)) {
5662 TAINT;
5663 break;
5664 }
a0d0e21e
LW		 5665 }
5666 MARK = ORIGMARK;
5667 TAINT_PROPER("syscall");
5668 }
5669
5670 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5671 * or where sizeof(long) != sizeof(char*). But such machines will
5672 * not likely have syscall implemented either, so who cares?
5673 */
5674 while (++MARK <= SP) {
5675 if (SvNIOK(*MARK) || !i)
5676 a[i++] = SvIV(*MARK);
3280af22 5677 else if (*MARK == &PL_sv_undef)
748a9306 5678 a[i++] = 0;
301e8125 5679 else
2d8e6c8d 5680 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5681 if (i > 15)
5682 break;
5683 }
5684 switch (items) {
5685 default:
cea2e8a9 5686 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5687 case 0:
cea2e8a9 5688 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5689 case 1:
5690 retval = syscall(a[0]);
5691 break;
5692 case 2:
5693 retval = syscall(a[0],a[1]);
5694 break;
5695 case 3:
5696 retval = syscall(a[0],a[1],a[2]);
5697 break;
5698 case 4:
5699 retval = syscall(a[0],a[1],a[2],a[3]);
5700 break;
5701 case 5:
5702 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5703 break;
5704 case 6:
5705 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5706 break;
5707 case 7:
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5709 break;
5710 case 8:
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5712 break;
5713#ifdef atarist
5714 case 9:
5715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5716 break;
5717 case 10:
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5719 break;
5720 case 11:
5721 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5722 a[10]);
5723 break;
5724 case 12:
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5726 a[10],a[11]);
5727 break;
5728 case 13:
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5730 a[10],a[11],a[12]);
5731 break;
5732 case 14:
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5734 a[10],a[11],a[12],a[13]);
5735 break;
5736#endif /* atarist */
5737 }
5738 SP = ORIGMARK;
5739 PUSHi(retval);
5740 RETURN;
5741#else
cea2e8a9 5742 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5743#endif
5744}
5745
ff68c719 5746#ifdef FCNTL_EMULATE_FLOCK
301e8125 5747
ff68c719 5748/* XXX Emulate flock() with fcntl().
5749 What's really needed is a good file locking module.
5750*/
5751
cea2e8a9
GS		 5752static int
5753fcntl_emulate_flock(int fd, int operation)
ff68c719 5754{
5755 struct flock flock;
301e8125 5756
ff68c719 5757 switch (operation & ~LOCK_NB) {
5758 case LOCK_SH:
5759 flock.l_type = F_RDLCK;
5760 break;
5761 case LOCK_EX:
5762 flock.l_type = F_WRLCK;
5763 break;
5764 case LOCK_UN:
5765 flock.l_type = F_UNLCK;
5766 break;
5767 default:
5768 errno = EINVAL;
5769 return -1;
5770 }
5771 flock.l_whence = SEEK_SET;
d9b3e12d 5772 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5773
ff68c719 5774 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5775}
5776
5777#endif /* FCNTL_EMULATE_FLOCK */
5778
5779#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5780
5781/* XXX Emulate flock() with lockf(). This is just to increase
5782 portability of scripts. The calls are not completely
5783 interchangeable. What's really needed is a good file
5784 locking module.
5785*/
5786
76c32331 5787/* The lockf() constants might have been defined in <unistd.h>.
5788 Unfortunately, <unistd.h> causes troubles on some mixed
5789 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5790
5791 Further, the lockf() constants aren't POSIX, so they might not be
5792 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5793 just stick in the SVID values and be done with it. Sigh.
5794*/
5795
5796# ifndef F_ULOCK
5797# define F_ULOCK 0 /* Unlock a previously locked region */
5798# endif
5799# ifndef F_LOCK
5800# define F_LOCK 1 /* Lock a region for exclusive use */
5801# endif
5802# ifndef F_TLOCK
5803# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5804# endif
5805# ifndef F_TEST
5806# define F_TEST 3 /* Test a region for other processes locks */
5807# endif
5808
cea2e8a9
GS		 5809static int
5810lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5811{
5812 int i;
84902520
TB		 5813 int save_errno;
5814 Off_t pos;
5815
5816 /* flock locks entire file so for lockf we need to do the same */
5817 save_errno = errno;
6ad3d225 5818 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5819 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5820 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5821 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5822 errno = save_errno;
5823
16d20bd9
AD		 5824 switch (operation) {
5825
5826 /* LOCK_SH - get a shared lock */
5827 case LOCK_SH:
5828 /* LOCK_EX - get an exclusive lock */
5829 case LOCK_EX:
5830 i = lockf (fd, F_LOCK, 0);
5831 break;
5832
5833 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5834 case LOCK_SH|LOCK_NB:
5835 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5836 case LOCK_EX|LOCK_NB:
5837 i = lockf (fd, F_TLOCK, 0);
5838 if (i == -1)
5839 if ((errno == EAGAIN) || (errno == EACCES))
5840 errno = EWOULDBLOCK;
5841 break;
5842
ff68c719 5843 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5844 case LOCK_UN:
ff68c719 5845 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5846 i = lockf (fd, F_ULOCK, 0);
5847 break;
5848
5849 /* Default - can't decipher operation */
5850 default:
5851 i = -1;
5852 errno = EINVAL;
5853 break;
5854 }
84902520
TB		 5855
5856 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5857 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5858
16d20bd9
AD		 5859 return (i);
5860}
ff68c719 5861
5862#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5863
5864/*
5865 * Local variables:
5866 * c-indentation-style: bsd
5867 * c-basic-offset: 4
5868 * indent-tabs-mode: t
5869 * End:
5870 *
edf815fd 5871 * vim: shiftwidth=4:
241d1a3b 5872*/
Unnamed repository; edit this file 'description' to name the repository.