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Integrate the API from:
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
e6906430 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
583439ab 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
40d34c0d
SB		 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
f0798ba3
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;
24c2fff4 318 const I32 gimme = GIMME_V;
c05e0e2f 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";
0473add9 326 fp = PerlProc_popen(tmps, (char *)mode);
a0d0e21e 327 if (fp) {
c05e0e2f 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) {
0aba80bd
NC		 342 ENTER;
343 SAVESPTR(PL_rs);
fa326138 344 PL_rs = &PL_sv_undef;
2a8de9e2 345 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e
LW		 346 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
347 /*SUPPRESS 530*/
348 ;
0aba80bd 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) {
ea5389ca 364 SvPV_shrink_to_cur(sv);
a0d0e21e 365 }
aa689395 366 SvTAINTED_on(sv);
a0d0e21e
LW		 367 }
368 }
6ad3d225 369 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 370 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 371 }
372 else {
f86702cc 373 STATUS_NATIVE_SET(-1);
54310121 374 if (gimme == G_SCALAR)
a0d0e21e
LW		 375 RETPUSHUNDEF;
376 }
377
378 RETURN;
379}
380
381PP(pp_glob)
382{
383 OP *result;
f5284f61
IZ		 384 tryAMAGICunTARGET(iter, -1);
385
71686f12
GS		 386 /* Note that we only ever get here if File::Glob fails to load
387 * without at the same time croaking, for some reason, or if
388 * perl was built with PERL_EXTERNAL_GLOB */
389
a0d0e21e 390 ENTER;
a0d0e21e 391
c90c0ff4 392#ifndef VMS
3280af22 393 if (PL_tainting) {
7bac28a0 394 /*
395 * The external globbing program may use things we can't control,
396 * so for security reasons we must assume the worst.
397 */
398 TAINT;
22c35a8c 399 taint_proper(PL_no_security, "glob");
7bac28a0 400 }
c90c0ff4 401#endif /* !VMS */
7bac28a0 402
3280af22
NIS		 403 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
404 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 405
3280af22 406 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 407 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 408#ifndef DOSISH
409#ifndef CSH
6b88bc9c 410 *SvPVX(PL_rs) = '\n';
a0d0e21e 411#endif /* !CSH */
55497cff 412#endif /* !DOSISH */
c07a80fd 413
a0d0e21e
LW		 414 result = do_readline();
415 LEAVE;
416 return result;
417}
418
a0d0e21e
LW		 419PP(pp_rcatline)
420{
146174a9 421 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 422 return do_readline();
423}
424
425PP(pp_warn)
426{
39644a26 427 dSP; dMARK;
06bf62c7 428 SV *tmpsv;
c05e0e2f 429 const char *tmps;
06bf62c7 430 STRLEN len;
a0d0e21e
LW		 431 if (SP - MARK != 1) {
432 dTARGET;
3280af22 433 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 434 tmpsv = TARG;
a0d0e21e
LW		 435 SP = MARK + 1;
436 }
437 else {
06bf62c7 438 tmpsv = TOPs;
a0d0e21e 439 }
06bf62c7 440 tmps = SvPV(tmpsv, len);
5e8f8cda 441 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 442 SV *error = ERRSV;
443 (void)SvUPGRADE(error, SVt_PV);
444 if (SvPOK(error) && SvCUR(error))
445 sv_catpv(error, "\t...caught");
06bf62c7
GS		 446 tmpsv = error;
447 tmps = SvPV(tmpsv, len);
a0d0e21e 448 }
06bf62c7
GS		 449 if (!tmps || !len)
450 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
451
cb50131a 452 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 453 RETSETYES;
454}
455
456PP(pp_die)
457{
39644a26 458 dSP; dMARK;
c05e0e2f 459 const char *tmps;
06bf62c7
GS		 460 SV *tmpsv;
461 STRLEN len;
462 bool multiarg = 0;
96e176bf
CL		 463#ifdef VMS
464 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
465#endif
a0d0e21e
LW		 466 if (SP - MARK != 1) {
467 dTARGET;
3280af22 468 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 469 tmpsv = TARG;
470 tmps = SvPV(tmpsv, len);
471 multiarg = 1;
a0d0e21e
LW		 472 SP = MARK + 1;
473 }
474 else {
4e6ea2c3 475 tmpsv = TOPs;
5b7ea690 476 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 477 }
06bf62c7 478 if (!tmps || !len) {
4e6ea2c3
GS		 479 SV *error = ERRSV;
480 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 481 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
482 if (!multiarg)
4e6ea2c3 483 SvSetSV(error,tmpsv);
06bf62c7 484 else if (sv_isobject(error)) {
05423cc9
GS		 485 HV *stash = SvSTASH(SvRV(error));
486 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
487 if (gv) {
146174a9 488 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 489 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 490 EXTEND(SP, 3);
491 PUSHMARK(SP);
492 PUSHs(error);
493 PUSHs(file);
494 PUSHs(line);
495 PUTBACK;
864dbfa3
GS		 496 call_sv((SV*)GvCV(gv),
497 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 498 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 499 }
500 }
9982c483 501 DIE_NULL;
4e6ea2c3
GS		 502 }
503 else {
504 if (SvPOK(error) && SvCUR(error))
505 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 506 tmpsv = error;
507 tmps = SvPV(tmpsv, len);
4e6ea2c3 508 }
a0d0e21e 509 }
06bf62c7
GS		 510 if (!tmps || !len)
511 tmpsv = sv_2mortal(newSVpvn("Died", 4));
512
cb50131a 513 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 514}
515
516/* I/O. */
517
518PP(pp_open)
519{
39644a26 520 dSP;
a567e93b
NIS		 521 dMARK; dORIGMARK;
522 dTARGET;
a0d0e21e
LW		 523 GV *gv;
524 SV *sv;
5b468f54 525 IO *io;
a0d0e21e
LW		 526 char *tmps;
527 STRLEN len;
4592e6ca 528 MAGIC *mg;
a567e93b 529 bool ok;
a0d0e21e 530
a567e93b 531 gv = (GV *)*++MARK;
5f05dabc 532 if (!isGV(gv))
cea2e8a9 533 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 534 if ((io = GvIOp(gv)))
36477c24 535 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 536
5b468f54 537 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 538 /* Method's args are same as ours ... */
539 /* ... except handle is replaced by the object */
5b468f54 540 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 541 PUSHMARK(MARK);
4592e6ca
NIS		 542 PUTBACK;
543 ENTER;
864dbfa3 544 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 545 LEAVE;
546 SPAGAIN;
547 RETURN;
548 }
549
a567e93b
NIS		 550 if (MARK < SP) {
551 sv = *++MARK;
552 }
553 else {
554 sv = GvSV(gv);
555 }
556
a0d0e21e 557 tmps = SvPV(sv, len);
a567e93b
NIS		 558 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
559 SP = ORIGMARK;
560 if (ok)
3280af22
NIS		 561 PUSHi( (I32)PL_forkprocess );
562 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 563 PUSHi(0);
564 else
565 RETPUSHUNDEF;
566 RETURN;
567}
568
569PP(pp_close)
570{
39644a26 571 dSP;
a0d0e21e 572 GV *gv;
5b468f54 573 IO *io;
1d603a67 574 MAGIC *mg;
a0d0e21e
LW		 575
576 if (MAXARG == 0)
3280af22 577 gv = PL_defoutgv;
a0d0e21e
LW		 578 else
579 gv = (GV*)POPs;
1d603a67 580
5b468f54
AMS		 581 if (gv && (io = GvIO(gv))
582 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
583 {
1d603a67 584 PUSHMARK(SP);
5b468f54 585 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 586 PUTBACK;
587 ENTER;
864dbfa3 588 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 589 LEAVE;
590 SPAGAIN;
591 RETURN;
592 }
a0d0e21e 593 EXTEND(SP, 1);
54310121 594 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 595 RETURN;
596}
597
598PP(pp_pipe_op)
599{
a0d0e21e 600#ifdef HAS_PIPE
9cad6237 601 dSP;
a0d0e21e
LW		 602 GV *rgv;
603 GV *wgv;
604 register IO *rstio;
605 register IO *wstio;
606 int fd[2];
607
608 wgv = (GV*)POPs;
609 rgv = (GV*)POPs;
610
611 if (!rgv || !wgv)
612 goto badexit;
613
4633a7c4 614 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 615 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 616 rstio = GvIOn(rgv);
617 wstio = GvIOn(wgv);
618
619 if (IoIFP(rstio))
620 do_close(rgv, FALSE);
621 if (IoIFP(wstio))
622 do_close(wgv, FALSE);
623
6ad3d225 624 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 625 goto badexit;
626
5a560d3a
IZ		 627 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
628 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 629 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 630 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 631 IoTYPE(rstio) = IoTYPE_RDONLY;
632 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 633
634 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 635 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 636 else PerlLIO_close(fd[0]);
760ac839 637 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 638 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 639 goto badexit;
640 }
4771b018
GS		 641#if defined(HAS_FCNTL) && defined(F_SETFD)
642 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
643 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
644#endif
a0d0e21e
LW		 645 RETPUSHYES;
646
647badexit:
648 RETPUSHUNDEF;
649#else
cea2e8a9 650 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 651#endif
652}
653
654PP(pp_fileno)
655{
39644a26 656 dSP; dTARGET;
a0d0e21e
LW		 657 GV *gv;
658 IO *io;
760ac839 659 PerlIO *fp;
4592e6ca
NIS		 660 MAGIC *mg;
661
a0d0e21e
LW		 662 if (MAXARG < 1)
663 RETPUSHUNDEF;
664 gv = (GV*)POPs;
4592e6ca 665
5b468f54
AMS		 666 if (gv && (io = GvIO(gv))
667 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
668 {
4592e6ca 669 PUSHMARK(SP);
5b468f54 670 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 671 PUTBACK;
672 ENTER;
864dbfa3 673 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 674 LEAVE;
675 SPAGAIN;
676 RETURN;
677 }
678
c289d2f7
JH		 679 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
680 /* Can't do this because people seem to do things like
681 defined(fileno($foo)) to check whether $foo is a valid fh.
682 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
683 report_evil_fh(gv, io, PL_op->op_type);
684 */
a0d0e21e 685 RETPUSHUNDEF;
c289d2f7
JH		 686 }
687
760ac839 688 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 689 RETURN;
690}
691
692PP(pp_umask)
693{
39644a26 694 dSP; dTARGET;
d7e492a4 695#ifdef HAS_UMASK
761237fe 696 Mode_t anum;
a0d0e21e 697
a0d0e21e 698 if (MAXARG < 1) {
6ad3d225
GS		 699 anum = PerlLIO_umask(0);
700 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 701 }
702 else
6ad3d225 703 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 704 TAINT_PROPER("umask");
705 XPUSHi(anum);
706#else
eec2d3df
GS		 707 /* Only DIE if trying to restrict permissions on `user' (self).
708 * Otherwise it's harmless and more useful to just return undef
709 * since 'group' and 'other' concepts probably don't exist here. */
710 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 711 DIE(aTHX_ "umask not implemented");
6b88bc9c 712 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 713#endif
714 RETURN;
715}
716
717PP(pp_binmode)
718{
39644a26 719 dSP;
a0d0e21e
LW		 720 GV *gv;
721 IO *io;
760ac839 722 PerlIO *fp;
4592e6ca 723 MAGIC *mg;
16fe6d59 724 SV *discp = Nullsv;
a0d0e21e
LW		 725
726 if (MAXARG < 1)
727 RETPUSHUNDEF;
60382766 728 if (MAXARG > 1) {
16fe6d59 729 discp = POPs;
60382766 730 }
a0d0e21e 731
301e8125 732 gv = (GV*)POPs;
4592e6ca 733
5b468f54
AMS		 734 if (gv && (io = GvIO(gv))
735 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
736 {
4592e6ca 737 PUSHMARK(SP);
5b468f54 738 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 739 if (discp)
740 XPUSHs(discp);
4592e6ca
NIS		 741 PUTBACK;
742 ENTER;
864dbfa3 743 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 744 LEAVE;
745 SPAGAIN;
746 RETURN;
747 }
a0d0e21e
LW		 748
749 EXTEND(SP, 1);
50f846a7 750 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 751 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
752 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 753 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 754 RETPUSHUNDEF;
755 }
a0d0e21e 756
40d98b49 757 PUTBACK;
60382766 758 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 759 (discp) ? SvPV_nolen(discp) : Nullch)) {
406c4b1e
JH		 760 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
761 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
762 mode_from_discipline(discp),
763 (discp) ? SvPV_nolen(discp) : Nullch)) {
764 SPAGAIN;
765 RETPUSHUNDEF;
766 }
767 }
40d98b49 768 SPAGAIN;
a0d0e21e 769 RETPUSHYES;
40d98b49
JH		 770 }
771 else {
772 SPAGAIN;
a0d0e21e 773 RETPUSHUNDEF;
40d98b49 774 }
a0d0e21e
LW		 775}
776
777PP(pp_tie)
778{
39644a26 779 dSP;
e336de0d 780 dMARK;
a0d0e21e
LW		 781 SV *varsv;
782 HV* stash;
783 GV *gv;
a0d0e21e 784 SV *sv;
3280af22 785 I32 markoff = MARK - PL_stack_base;
c05e0e2f 786 const char *methname;
14befaf4 787 int how = PERL_MAGIC_tied;
e336de0d 788 U32 items;
a0d0e21e 789
e336de0d 790 varsv = *++MARK;
6b05c17a
NIS		 791 switch(SvTYPE(varsv)) {
792 case SVt_PVHV:
793 methname = "TIEHASH";
26ab6a78 794 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 795 break;
796 case SVt_PVAV:
797 methname = "TIEARRAY";
798 break;
799 case SVt_PVGV:
7fb37951
AMS		 800#ifdef GV_UNIQUE_CHECK
801 if (GvUNIQUE((GV*)varsv)) {
802 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 803 }
804#endif
6b05c17a 805 methname = "TIEHANDLE";
14befaf4 806 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 807 /* For tied filehandles, we apply tiedscalar magic to the IO
808 slot of the GP rather than the GV itself. AMS 20010812 */
809 if (!GvIOp(varsv))
810 GvIOp(varsv) = newIO();
811 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 812 break;
813 default:
814 methname = "TIESCALAR";
14befaf4 815 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 816 break;
817 }
e336de0d
GS		 818 items = SP - MARK++;
819 if (sv_isobject(*MARK)) {
6b05c17a 820 ENTER;
e788e7d3 821 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 822 PUSHMARK(SP);
eb160463 823 EXTEND(SP,(I32)items);
e336de0d
GS		 824 while (items--)
825 PUSHs(*MARK++);
826 PUTBACK;
864dbfa3 827 call_method(methname, G_SCALAR);
301e8125 828 }
6b05c17a 829 else {
864dbfa3 830 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 831 * perhaps to get different error message ?
832 */
e336de0d 833 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 834 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
c293eb2b
NC		 835 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
836 methname, *MARK);
6b05c17a
NIS		 837 }
838 ENTER;
e788e7d3 839 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 840 PUSHMARK(SP);
eb160463 841 EXTEND(SP,(I32)items);
e336de0d
GS		 842 while (items--)
843 PUSHs(*MARK++);
844 PUTBACK;
864dbfa3 845 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 846 }
a0d0e21e
LW		 847 SPAGAIN;
848
849 sv = TOPs;
d3acc0f7 850 POPSTACK;
a0d0e21e 851 if (sv_isobject(sv)) {
33c27489 852 sv_unmagic(varsv, how);
ae21d580 853 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 854 if (varsv == SvRV(sv) &&
d87ebaca
YST		 855 (SvTYPE(varsv) == SVt_PVAV ||
856 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 857 Perl_croak(aTHX_
858 "Self-ties of arrays and hashes are not supported");
d87ebaca 859 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 860 }
861 LEAVE;
3280af22 862 SP = PL_stack_base + markoff;
a0d0e21e
LW		 863 PUSHs(sv);
864 RETURN;
865}
866
867PP(pp_untie)
868{
39644a26 869 dSP;
5b468f54 870 MAGIC *mg;
33c27489 871 SV *sv = POPs;
14befaf4
DM		 872 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
873 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 874
5b468f54
AMS		 875 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
876 RETPUSHYES;
877
d87861d8
PP		 878 if ((mg = SvTIED_mg(sv, how))) {
879 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 880 GV *gv;
881 CV *cv = NULL;
fa2b88e0
JS		 882 if (obj) {
883 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
884 isGV(gv) && (cv = GvCV(gv))) {
885 PUSHMARK(SP);
886 XPUSHs(SvTIED_obj((SV*)gv, mg));
887 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
888 PUTBACK;
889 ENTER;
890 call_sv((SV *)cv, G_VOID);
891 LEAVE;
892 SPAGAIN;
893 }
894 else if (ckWARN(WARN_UNTIE)) {
895 if (mg && SvREFCNT(obj) > 1)
9014280d 896 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 897 "untie attempted while %"UVuf" inner references still exist",
898 (UV)SvREFCNT(obj) - 1 ) ;
899 }
cbdc8872 900 }
901 }
06d028cb 902 sv_unmagic(sv, how) ;
55497cff 903 RETPUSHYES;
a0d0e21e
LW		 904}
905
c07a80fd 906PP(pp_tied)
907{
39644a26 908 dSP;
5b468f54 909 MAGIC *mg;
33c27489 910 SV *sv = POPs;
14befaf4
DM		 911 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
912 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 913
914 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
915 RETPUSHUNDEF;
c07a80fd 916
155aba94 917 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 918 SV *osv = SvTIED_obj(sv, mg);
919 if (osv == mg->mg_obj)
920 osv = sv_mortalcopy(osv);
921 PUSHs(osv);
922 RETURN;
c07a80fd 923 }
c07a80fd 924 RETPUSHUNDEF;
925}
926
a0d0e21e
LW		 927PP(pp_dbmopen)
928{
39644a26 929 dSP;
a0d0e21e
LW		 930 HV *hv;
931 dPOPPOPssrl;
932 HV* stash;
933 GV *gv;
a0d0e21e
LW		 934 SV *sv;
935
936 hv = (HV*)POPs;
937
3280af22 938 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 939 sv_setpv(sv, "AnyDBM_File");
940 stash = gv_stashsv(sv, FALSE);
8ebc5c01 941 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 942 PUTBACK;
864dbfa3 943 require_pv("AnyDBM_File.pm");
a0d0e21e 944 SPAGAIN;
8ebc5c01 945 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 946 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 947 }
948
57d3b86d 949 ENTER;
924508f0 950 PUSHMARK(SP);
6b05c17a 951
924508f0 952 EXTEND(SP, 5);
a0d0e21e
LW		 953 PUSHs(sv);
954 PUSHs(left);
955 if (SvIV(right))
b448e4fe 956 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 957 else
b448e4fe 958 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 959 PUSHs(right);
57d3b86d 960 PUTBACK;
864dbfa3 961 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 962 SPAGAIN;
963
964 if (!sv_isobject(TOPs)) {
924508f0
GS		 965 SP--;
966 PUSHMARK(SP);
a0d0e21e
LW		 967 PUSHs(sv);
968 PUSHs(left);
b448e4fe 969 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 970 PUSHs(right);
a0d0e21e 971 PUTBACK;
864dbfa3 972 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 973 SPAGAIN;
974 }
975
6b05c17a 976 if (sv_isobject(TOPs)) {
14befaf4
DM		 977 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
978 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 979 }
a0d0e21e
LW		 980 LEAVE;
981 RETURN;
982}
983
984PP(pp_dbmclose)
985{
cea2e8a9 986 return pp_untie();
a0d0e21e
LW		 987}
988
989PP(pp_sselect)
990{
a0d0e21e 991#ifdef HAS_SELECT
9cad6237 992 dSP; dTARGET;
a0d0e21e
LW		 993 register I32 i;
994 register I32 j;
995 register char *s;
996 register SV *sv;
65202027 997 NV value;
a0d0e21e
LW		 998 I32 maxlen = 0;
999 I32 nfound;
1000 struct timeval timebuf;
1001 struct timeval *tbuf = &timebuf;
1002 I32 growsize;
1003 char *fd_sets[4];
2d8e6c8d 1004 STRLEN n_a;
a0d0e21e
LW		 1005#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1006 I32 masksize;
1007 I32 offset;
1008 I32 k;
1009
1010# if BYTEORDER & 0xf0000
1011# define ORDERBYTE (0x88888888 - BYTEORDER)
1012# else
1013# define ORDERBYTE (0x4444 - BYTEORDER)
1014# endif
1015
1016#endif
1017
1018 SP -= 4;
1019 for (i = 1; i <= 3; i++) {
1020 if (!SvPOK(SP[i]))
1021 continue;
1022 j = SvCUR(SP[i]);
1023 if (maxlen < j)
1024 maxlen = j;
1025 }
1026
5ff3f7a4 1027/* little endians can use vecs directly */
e366b469 1028#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1029# ifdef NFDBITS
a0d0e21e 1030
5ff3f7a4
GS		 1031# ifndef NBBY
1032# define NBBY 8
1033# endif
a0d0e21e
LW		 1034
1035 masksize = NFDBITS / NBBY;
5ff3f7a4 1036# else
a0d0e21e 1037 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1038# endif
a0d0e21e
LW		 1039 Zero(&fd_sets[0], 4, char*);
1040#endif
1041
482ba07e
JH		 1042# if SELECT_MIN_BITS == 1
1043 growsize = sizeof(fd_set);
1044# else
1045# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1046# undef SELECT_MIN_BITS
1047# define SELECT_MIN_BITS __FD_SETSIZE
1048# endif
e366b469
PG		 1049 /* If SELECT_MIN_BITS is greater than one we most probably will want
1050 * to align the sizes with SELECT_MIN_BITS/8 because for example
1051 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1052 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1053 * on (sets/tests/clears bits) is 32 bits. */
1054 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1055# endif
1056
a0d0e21e
LW		 1057 sv = SP[4];
1058 if (SvOK(sv)) {
1059 value = SvNV(sv);
1060 if (value < 0.0)
1061 value = 0.0;
1062 timebuf.tv_sec = (long)value;
65202027 1063 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1064 timebuf.tv_usec = (long)(value * 1000000.0);
1065 }
1066 else
1067 tbuf = Null(struct timeval*);
1068
1069 for (i = 1; i <= 3; i++) {
1070 sv = SP[i];
1071 if (!SvOK(sv)) {
1072 fd_sets[i] = 0;
1073 continue;
1074 }
1075 else if (!SvPOK(sv))
2d8e6c8d 1076 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1077 j = SvLEN(sv);
1078 if (j < growsize) {
1079 Sv_Grow(sv, growsize);
a0d0e21e 1080 }
c07a80fd 1081 j = SvCUR(sv);
1082 s = SvPVX(sv) + j;
1083 while (++j <= growsize) {
1084 *s++ = '\0';
1085 }
1086
a0d0e21e
LW		 1087#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1088 s = SvPVX(sv);
1089 New(403, fd_sets[i], growsize, char);
1090 for (offset = 0; offset < growsize; offset += masksize) {
1091 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1092 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1093 }
1094#else
1095 fd_sets[i] = SvPVX(sv);
1096#endif
1097 }
1098
fd4f854d
NC		 1099#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1100 /* Can't make just the (void*) conditional because that would be
1101 * cpp #if within cpp macro, and not all compilers like that. */
1102 nfound = PerlSock_select(
1103 maxlen * 8,
1104 (Select_fd_set_t) fd_sets[1],
1105 (Select_fd_set_t) fd_sets[2],
1106 (Select_fd_set_t) fd_sets[3],
1107 (void*) tbuf); /* Workaround for compiler bug. */
1108#else
6ad3d225 1109 nfound = PerlSock_select(
a0d0e21e
LW		 1110 maxlen * 8,
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 tbuf);
fd4f854d 1115#endif
a0d0e21e
LW		 1116 for (i = 1; i <= 3; i++) {
1117 if (fd_sets[i]) {
1118 sv = SP[i];
1119#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1120 s = SvPVX(sv);
1121 for (offset = 0; offset < growsize; offset += masksize) {
1122 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1123 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1124 }
1125 Safefree(fd_sets[i]);
1126#endif
1127 SvSETMAGIC(sv);
1128 }
1129 }
1130
1131 PUSHi(nfound);
1132 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1133 value = (NV)(timebuf.tv_sec) +
1134 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1135 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1136 sv_setnv(sv, value);
1137 }
1138 RETURN;
1139#else
cea2e8a9 1140 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1141#endif
1142}
1143
4633a7c4 1144void
864dbfa3 1145Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1146{
1147 if (gv)
1148 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1149 if (PL_defoutgv)
1150 SvREFCNT_dec(PL_defoutgv);
1151 PL_defoutgv = gv;
4633a7c4
LW		 1152}
1153
a0d0e21e
LW		 1154PP(pp_select)
1155{
39644a26 1156 dSP; dTARGET;
4633a7c4
LW		 1157 GV *newdefout, *egv;
1158 HV *hv;
1159
533c011a 1160 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1161
3280af22 1162 egv = GvEGV(PL_defoutgv);
4633a7c4 1163 if (!egv)
3280af22 1164 egv = PL_defoutgv;
4633a7c4
LW		 1165 hv = GvSTASH(egv);
1166 if (! hv)
3280af22 1167 XPUSHs(&PL_sv_undef);
4633a7c4 1168 else {
cbdc8872 1169 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1170 if (gvp && *gvp == egv) {
f7aaccc2 1171 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1172 XPUSHTARG;
1173 }
1174 else {
1175 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1176 }
4633a7c4
LW		 1177 }
1178
1179 if (newdefout) {
ded8aa31
GS		 1180 if (!GvIO(newdefout))
1181 gv_IOadd(newdefout);
4633a7c4
LW		 1182 setdefout(newdefout);
1183 }
1184
a0d0e21e
LW		 1185 RETURN;
1186}
1187
1188PP(pp_getc)
1189{
39644a26 1190 dSP; dTARGET;
a0d0e21e 1191 GV *gv;
90133b69 1192 IO *io = NULL;
2ae324a7 1193 MAGIC *mg;
a0d0e21e 1194
32da55ab 1195 if (MAXARG == 0)
3280af22 1196 gv = PL_stdingv;
a0d0e21e
LW		 1197 else
1198 gv = (GV*)POPs;
2ae324a7 1199
5b468f54
AMS		 1200 if (gv && (io = GvIO(gv))
1201 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1202 {
24c2fff4 1203 const I32 gimme = GIMME_V;
2ae324a7 1204 PUSHMARK(SP);
5b468f54 1205 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1206 PUTBACK;
1207 ENTER;
864dbfa3 1208 call_method("GETC", gimme);
2ae324a7 1209 LEAVE;
1210 SPAGAIN;
54310121 1211 if (gimme == G_SCALAR)
1212 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1213 RETURN;
1214 }
90133b69 1215 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1216 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1217 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1218 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1219 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1220 RETPUSHUNDEF;
90133b69 1221 }
bbce6d69 1222 TAINT;
2a8de9e2 1223 sv_setpvn(TARG, " ", 1);
9bc64814 1224 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1225 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1226 /* Find out how many bytes the char needs */
1227 Size_t len = UTF8SKIP(SvPVX(TARG));
1228 if (len > 1) {
1229 SvGROW(TARG,len+1);
1230 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1231 SvCUR_set(TARG,1+len);
1232 }
1233 SvUTF8_on(TARG);
1234 }
a0d0e21e
LW		 1235 PUSHTARG;
1236 RETURN;
1237}
1238
1239PP(pp_read)
1240{
cea2e8a9 1241 return pp_sysread();
a0d0e21e
LW		 1242}
1243
76e3520e 1244STATIC OP *
cea2e8a9 1245S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1246{
c09156bb 1247 register PERL_CONTEXT *cx;
24c2fff4 1248 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1249
1250 ENTER;
1251 SAVETMPS;
1252
1253 push_return(retop);
146174a9 1254 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1255 PUSHFORMAT(cx);
9755d405 1256 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1257
4633a7c4 1258 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1259 return CvSTART(cv);
1260}
1261
1262PP(pp_enterwrite)
1263{
39644a26 1264 dSP;
a0d0e21e
LW		 1265 register GV *gv;
1266 register IO *io;
1267 GV *fgv;
1268 CV *cv;
1269
1270 if (MAXARG == 0)
3280af22 1271 gv = PL_defoutgv;
a0d0e21e
LW		 1272 else {
1273 gv = (GV*)POPs;
1274 if (!gv)
3280af22 1275 gv = PL_defoutgv;
a0d0e21e
LW		 1276 }
1277 EXTEND(SP, 1);
1278 io = GvIO(gv);
1279 if (!io) {
1280 RETPUSHNO;
1281 }
1282 if (IoFMT_GV(io))
1283 fgv = IoFMT_GV(io);
1284 else
1285 fgv = gv;
1286
1287 cv = GvFORM(fgv);
a0d0e21e 1288 if (!cv) {
2dd78f96 1289 char *name = NULL;
a0d0e21e 1290 if (fgv) {
748a9306 1291 SV *tmpsv = sv_newmortal();
43693395 1292 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1293 name = SvPV_nolen(tmpsv);
a0d0e21e 1294 }
2dd78f96
JH		 1295 if (name && *name)
1296 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1297 DIE(aTHX_ "Not a format reference");
a0d0e21e 1298 }
44a8e56a 1299 if (CvCLONE(cv))
1300 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1301
44a8e56a 1302 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1303 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1304}
1305
1306PP(pp_leavewrite)
1307{
39644a26 1308 dSP;
a0d0e21e
LW		 1309 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1310 register IO *io = GvIOp(gv);
760ac839
LW		 1311 PerlIO *ofp = IoOFP(io);
1312 PerlIO *fp;
a0d0e21e
LW		 1313 SV **newsp;
1314 I32 gimme;
c09156bb 1315 register PERL_CONTEXT *cx;
a0d0e21e 1316
760ac839 1317 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1318 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1319 if (!io || !ofp)
1320 goto forget_top;
3280af22
NIS		 1321 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1322 PL_formtarget != PL_toptarget)
a0d0e21e 1323 {
4633a7c4
LW		 1324 GV *fgv;
1325 CV *cv;
a0d0e21e
LW		 1326 if (!IoTOP_GV(io)) {
1327 GV *topgv;
46fc3d4c 1328 SV *topname;
a0d0e21e
LW		 1329
1330 if (!IoTOP_NAME(io)) {
1331 if (!IoFMT_NAME(io))
1332 IoFMT_NAME(io) = savepv(GvNAME(gv));
6a1959a6 1333 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
46fc3d4c 1334 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1335 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1336 !gv_fetchpv("top",FALSE,SVt_PVFM))
04851bb3 1337 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e
LW		 1338 else
1339 IoTOP_NAME(io) = savepv("top");
1340 }
1341 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1342 if (!topgv || !GvFORM(topgv)) {
922661e1 1343 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1344 goto forget_top;
1345 }
1346 IoTOP_GV(io) = topgv;
1347 }
748a9306
LW		 1348 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1349 I32 lines = IoLINES_LEFT(io);
24c2fff4 1350 const char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1351 if (lines <= 0) /* Yow, header didn't even fit!!! */
1352 goto forget_top;
748a9306
LW		 1353 while (lines-- > 0) {
1354 s = strchr(s, '\n');
1355 if (!s)
1356 break;
1357 s++;
1358 }
1359 if (s) {
24c2fff4 1360 const STRLEN save = SvCUR(PL_formtarget);
d75029d0
NIS		 1361 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1362 do_print(PL_formtarget, ofp);
1363 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1364 sv_chop(PL_formtarget, s);
1365 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1366 }
1367 }
a0d0e21e 1368 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1369 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1370 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1371 IoPAGE(io)++;
3280af22 1372 PL_formtarget = PL_toptarget;
748a9306 1373 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1374 fgv = IoTOP_GV(io);
1375 if (!fgv)
cea2e8a9 1376 DIE(aTHX_ "bad top format reference");
4633a7c4 1377 cv = GvFORM(fgv);
2dd78f96
JH		 1378 {
1379 char *name = NULL;
1380 if (!cv) {
1381 SV *sv = sv_newmortal();
1382 gv_efullname4(sv, fgv, Nullch, FALSE);
1383 name = SvPV_nolen(sv);
1384 }
1385 if (name && *name)
1386 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1387 /* why no:
1388 else
1389 DIE(aTHX_ "Undefined top format called");
1390 ?*/
4633a7c4 1391 }
44a8e56a 1392 if (CvCLONE(cv))
1393 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1394 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1395 }
1396
1397 forget_top:
3280af22 1398 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1399 POPFORMAT(cx);
1400 LEAVE;
1401
1402 fp = IoOFP(io);
1403 if (!fp) {
599cee73 1404 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1405 if (IoIFP(io))
1406 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1407 else if (ckWARN(WARN_CLOSED))
bc37a18f 1408 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1409 }
3280af22 1410 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1411 }
1412 else {
3280af22 1413 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1414 if (ckWARN(WARN_IO))
9014280d 1415 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1416 }
d75029d0 1417 if (!do_print(PL_formtarget, fp))
3280af22 1418 PUSHs(&PL_sv_no);
a0d0e21e 1419 else {
3280af22
NIS		 1420 FmLINES(PL_formtarget) = 0;
1421 SvCUR_set(PL_formtarget, 0);
1422 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1423 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1424 (void)PerlIO_flush(fp);
3280af22 1425 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1426 }
1427 }
9cbac4c7 1428 /* bad_ofp: */
3280af22 1429 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1430 PUTBACK;
1431 return pop_return();
1432}
1433
1434PP(pp_prtf)
1435{
39644a26 1436 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1437 GV *gv;
1438 IO *io;
760ac839 1439 PerlIO *fp;
26db47c4 1440 SV *sv;
46fc3d4c 1441 MAGIC *mg;
a0d0e21e 1442
533c011a 1443 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1444 gv = (GV*)*++MARK;
1445 else
3280af22 1446 gv = PL_defoutgv;
46fc3d4c 1447
5b468f54
AMS		 1448 if (gv && (io = GvIO(gv))
1449 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1450 {
46fc3d4c 1451 if (MARK == ORIGMARK) {
4352c267 1452 MEXTEND(SP, 1);
46fc3d4c 1453 ++MARK;
1454 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1455 ++SP;
1456 }
1457 PUSHMARK(MARK - 1);
5b468f54 1458 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1459 PUTBACK;
1460 ENTER;
864dbfa3 1461 call_method("PRINTF", G_SCALAR);
46fc3d4c 1462 LEAVE;
1463 SPAGAIN;
1464 MARK = ORIGMARK + 1;
1465 *MARK = *SP;
1466 SP = MARK;
1467 RETURN;
1468 }
1469
26db47c4 1470 sv = NEWSV(0,0);
a0d0e21e 1471 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1472 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1473 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 1474 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1475 goto just_say_no;
1476 }
1477 else if (!(fp = IoOFP(io))) {
599cee73 1478 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1479 if (IoIFP(io))
1480 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1481 else if (ckWARN(WARN_CLOSED))
bc37a18f 1482 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1483 }
5b7ea690 1484 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1485 goto just_say_no;
1486 }
1487 else {
1488 do_sprintf(sv, SP - MARK, MARK + 1);
1489 if (!do_print(sv, fp))
1490 goto just_say_no;
1491
1492 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1493 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1494 goto just_say_no;
1495 }
1496 SvREFCNT_dec(sv);
1497 SP = ORIGMARK;
3280af22 1498 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1499 RETURN;
1500
1501 just_say_no:
1502 SvREFCNT_dec(sv);
1503 SP = ORIGMARK;
3280af22 1504 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1505 RETURN;
1506}
1507
c07a80fd 1508PP(pp_sysopen)
1509{
39644a26 1510 dSP;
c07a80fd 1511 GV *gv;
c07a80fd 1512 SV *sv;
1513 char *tmps;
1514 STRLEN len;
1515 int mode, perm;
1516
1517 if (MAXARG > 3)
1518 perm = POPi;
1519 else
1520 perm = 0666;
1521 mode = POPi;
1522 sv = POPs;
1523 gv = (GV *)POPs;
1524
4592e6ca
NIS		 1525 /* Need TIEHANDLE method ? */
1526
c07a80fd 1527 tmps = SvPV(sv, len);
1528 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1529 IoLINES(GvIOp(gv)) = 0;
3280af22 1530 PUSHs(&PL_sv_yes);
c07a80fd 1531 }
1532 else {
3280af22 1533 PUSHs(&PL_sv_undef);
c07a80fd 1534 }
1535 RETURN;
1536}
1537
a0d0e21e
LW		 1538PP(pp_sysread)
1539{
39644a26 1540 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1541 int offset;
1542 GV *gv;
1543 IO *io;
1544 char *buffer;
5b54f415 1545 SSize_t length;
eb5c063a 1546 SSize_t count;
1e422769 1547 Sock_size_t bufsize;
748a9306 1548 SV *bufsv;
a0d0e21e 1549 STRLEN blen;
2ae324a7 1550 MAGIC *mg;
eb5c063a 1551 int fp_utf8;
2ae92515
NC		 1552 int buffer_utf8;
1553 SV *read_target;
eb5c063a
NIS		 1554 Size_t got = 0;
1555 Size_t wanted;
1d636c13 1556 bool charstart = FALSE;
87330c3c
JH		 1557 STRLEN charskip = 0;
1558 STRLEN skip = 0;
a0d0e21e
LW		 1559
1560 gv = (GV*)*++MARK;
5b468f54
AMS		 1561 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1562 && gv && (io = GvIO(gv))
1563 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1564 {
2ae324a7 1565 SV *sv;
1566
1567 PUSHMARK(MARK-1);
5b468f54 1568 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1569 ENTER;
864dbfa3 1570 call_method("READ", G_SCALAR);
2ae324a7 1571 LEAVE;
1572 SPAGAIN;
1573 sv = POPs;
1574 SP = ORIGMARK;
1575 PUSHs(sv);
1576 RETURN;
1577 }
1578
a0d0e21e
LW		 1579 if (!gv)
1580 goto say_undef;
748a9306 1581 bufsv = *++MARK;
ff68c719 1582 if (! SvOK(bufsv))
1583 sv_setpvn(bufsv, "", 0);
a0d0e21e 1584 length = SvIVx(*++MARK);
748a9306 1585 SETERRNO(0,0);
a0d0e21e
LW		 1586 if (MARK < SP)
1587 offset = SvIVx(*++MARK);
1588 else
1589 offset = 0;
1590 io = GvIO(gv);
b5fe5ca2
SR		 1591 if (!io || !IoIFP(io)) {
1592 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1593 report_evil_fh(gv, io, PL_op->op_type);
1594 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1595 goto say_undef;
b5fe5ca2 1596 }
0064a8a9 1597 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1598 buffer = SvPVutf8_force(bufsv, blen);
cd458e05 1599 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1600 SvUTF8_on(bufsv);
2ae92515 1601 buffer_utf8 = 0;
7d59b7e4
NIS		 1602 }
1603 else {
1604 buffer = SvPV_force(bufsv, blen);
2ae92515 1605 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1606 }
1607 if (length < 0)
1608 DIE(aTHX_ "Negative length");
eb5c063a 1609 wanted = length;
7d59b7e4 1610
d0965105
JH		 1611 charstart = TRUE;
1612 charskip = 0;
87330c3c 1613 skip = 0;
d0965105 1614
a0d0e21e 1615#ifdef HAS_SOCKET
533c011a 1616 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1617 char namebuf[MAXPATHLEN];
17a8c7ba 1618#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1619 bufsize = sizeof (struct sockaddr_in);
1620#else
46fc3d4c 1621 bufsize = sizeof namebuf;
490ab354 1622#endif
abf95952
IZ		 1623#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1624 if (bufsize >= 256)
1625 bufsize = 255;
1626#endif
eb160463 1627 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1628 /* 'offset' means 'flags' here */
eb5c063a 1629 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1630 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1631 if (count < 0)
a0d0e21e 1632 RETPUSHUNDEF;
4107cc59
OF		 1633#ifdef EPOC
1634 /* Bogus return without padding */
1635 bufsize = sizeof (struct sockaddr_in);
1636#endif
eb5c063a 1637 SvCUR_set(bufsv, count);
748a9306
LW		 1638 *SvEND(bufsv) = '\0';
1639 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1640 if (fp_utf8)
1641 SvUTF8_on(bufsv);
748a9306 1642 SvSETMAGIC(bufsv);
aac0dd9a 1643 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1644 if (!(IoFLAGS(io) & IOf_UNTAINT))
1645 SvTAINTED_on(bufsv);
a0d0e21e 1646 SP = ORIGMARK;
46fc3d4c 1647 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1648 PUSHs(TARG);
1649 RETURN;
1650 }
1651#else
911d147d 1652 if (PL_op->op_type == OP_RECV)
cea2e8a9 1653 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1654#endif
eb5c063a
NIS		 1655 if (DO_UTF8(bufsv)) {
1656 /* offset adjust in characters not bytes */
1657 blen = sv_len_utf8(bufsv);
7d59b7e4 1658 }
bbce6d69 1659 if (offset < 0) {
eb160463 1660 if (-offset > (int)blen)
cea2e8a9 1661 DIE(aTHX_ "Offset outside string");
bbce6d69 1662 offset += blen;
1663 }
eb5c063a
NIS		 1664 if (DO_UTF8(bufsv)) {
1665 /* convert offset-as-chars to offset-as-bytes */
765545f3
NC		 1666 if (offset >= (int)blen)
1667 offset += SvCUR(bufsv) - blen;
1668 else
1669 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1670 }
1671 more_bytes:
cd52b7b2 1672 bufsize = SvCUR(bufsv);
2ae92515
NC		 1673 /* Allocating length + offset + 1 isn't perfect in the case of reading
1674 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1675 unduly.
1676 (should be 2 * length + offset + 1, or possibly something longer if
1677 PL_encoding is true) */
eb160463 1678 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1679 if (offset > bufsize) { /* Zero any newly allocated space */
1680 Zero(buffer+bufsize, offset-bufsize, char);
1681 }
eb5c063a 1682 buffer = buffer + offset;
2ae92515
NC		 1683 if (!buffer_utf8) {
1684 read_target = bufsv;
1685 } else {
1686 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1687 concatenate it to the current buffer. */
1688
1689 /* Truncate the existing buffer to the start of where we will be
1690 reading to: */
1691 SvCUR_set(bufsv, offset);
1692
1693 read_target = sv_newmortal();
74d4ec60 1694 (void)SvUPGRADE(read_target, SVt_PV);
39f667bb 1695 buffer = SvGROW(read_target, (STRLEN)(length + 1));
2ae92515 1696 }
eb5c063a 1697
533c011a 1698 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1699#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1700 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1701 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1702 buffer, length, 0);
a7092146
GS		 1703 }
1704 else
1705#endif
1706 {
eb5c063a
NIS		 1707 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1708 buffer, length);
a7092146 1709 }
a0d0e21e
LW		 1710 }
1711 else
1712#ifdef HAS_SOCKET__bad_code_maybe
50952442 1713 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1714 char namebuf[MAXPATHLEN];
490ab354
JH		 1715#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1716 bufsize = sizeof (struct sockaddr_in);
1717#else
46fc3d4c 1718 bufsize = sizeof namebuf;
490ab354 1719#endif
eb5c063a 1720 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1721 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1722 }
1723 else
1724#endif
3b02c43c 1725 {
eb5c063a
NIS		 1726 count = PerlIO_read(IoIFP(io), buffer, length);
1727 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1728 if (count == 0 && PerlIO_error(IoIFP(io)))
1729 count = -1;
3b02c43c 1730 }
eb5c063a 1731 if (count < 0) {
a00b5bd3 1732 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
5681398e 1733 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1734 goto say_undef;
af8c498a 1735 }
2ae92515
NC		 1736 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1737 *SvEND(read_target) = '\0';
1738 (void)SvPOK_only(read_target);
0064a8a9 1739 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1740 /* Look at utf8 we got back and count the characters */
1741 char *bend = buffer + count;
1742 while (buffer < bend) {
d0965105
JH		 1743 if (charstart) {
1744 skip = UTF8SKIP(buffer);
1745 charskip = 0;
1746 }
1747 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1748 /* partial character - try for rest of it */
1749 length = skip - (bend-buffer);
1750 offset = bend - SvPVX(bufsv);
d0965105
JH		 1751 charstart = FALSE;
1752 charskip += count;
eb5c063a
NIS		 1753 goto more_bytes;
1754 }
1755 else {
1756 got++;
1757 buffer += skip;
d0965105
JH		 1758 charstart = TRUE;
1759 charskip = 0;
eb5c063a
NIS		 1760 }
1761 }
1762 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1763 provided amount read (count) was what was requested (length)
1764 */
1765 if (got < wanted && count == length) {
d0965105 1766 length = wanted - got;
eb5c063a
NIS		 1767 offset = bend - SvPVX(bufsv);
1768 goto more_bytes;
1769 }
1770 /* return value is character count */
1771 count = got;
1772 SvUTF8_on(bufsv);
1773 }
2ae92515
NC		 1774 else if (buffer_utf8) {
1775 /* Let svcatsv upgrade the bytes we read in to utf8.
1776 The buffer is a mortal so will be freed soon. */
1777 sv_catsv_nomg(bufsv, read_target);
1778 }
748a9306 1779 SvSETMAGIC(bufsv);
aac0dd9a 1780 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1781 if (!(IoFLAGS(io) & IOf_UNTAINT))
1782 SvTAINTED_on(bufsv);
a0d0e21e 1783 SP = ORIGMARK;
eb5c063a 1784 PUSHi(count);
a0d0e21e
LW		 1785 RETURN;
1786
1787 say_undef:
1788 SP = ORIGMARK;
1789 RETPUSHUNDEF;
1790}
1791
1792PP(pp_syswrite)
1793{
39644a26 1794 dSP;
092bebab
JH		 1795 int items = (SP - PL_stack_base) - TOPMARK;
1796 if (items == 2) {
9f089d78 1797 SV *sv;
092bebab 1798 EXTEND(SP, 1);
9f089d78
SB		 1799 sv = sv_2mortal(newSViv(sv_len(*SP)));
1800 PUSHs(sv);
092bebab
JH		 1801 PUTBACK;
1802 }
cea2e8a9 1803 return pp_send();
a0d0e21e
LW		 1804}
1805
1806PP(pp_send)
1807{
39644a26 1808 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1809 GV *gv;
1810 IO *io;
748a9306 1811 SV *bufsv;
a0d0e21e 1812 char *buffer;
8c99d73e
GS		 1813 Size_t length;
1814 SSize_t retval;
a0d0e21e 1815 STRLEN blen;
1d603a67 1816 MAGIC *mg;
a0d0e21e
LW		 1817
1818 gv = (GV*)*++MARK;
14befaf4 1819 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1820 && gv && (io = GvIO(gv))
1821 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1822 {
1d603a67
GB		 1823 SV *sv;
1824
1825 PUSHMARK(MARK-1);
5b468f54 1826 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1827 ENTER;
864dbfa3 1828 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1829 LEAVE;
1830 SPAGAIN;
1831 sv = POPs;
1832 SP = ORIGMARK;
1833 PUSHs(sv);
1834 RETURN;
1835 }
a0d0e21e
LW		 1836 if (!gv)
1837 goto say_undef;
748a9306 1838 bufsv = *++MARK;
8c99d73e 1839#if Size_t_size > IVSIZE
3c001241 1840 length = (Size_t)SvNVx(*++MARK);
146174a9 1841#else
3c001241 1842 length = (Size_t)SvIVx(*++MARK);
146174a9 1843#endif
3c001241 1844 if ((SSize_t)length < 0)
cea2e8a9 1845 DIE(aTHX_ "Negative length");
748a9306 1846 SETERRNO(0,0);
a0d0e21e
LW		 1847 io = GvIO(gv);
1848 if (!io || !IoIFP(io)) {
8c99d73e 1849 retval = -1;
bc37a18f
RG		 1850 if (ckWARN(WARN_CLOSED))
1851 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1852 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1853 goto say_undef;
1854 }
1855
1856 if (PerlIO_isutf8(IoIFP(io))) {
71410450
NC		 1857 if (!SvUTF8(bufsv)) {
1858 bufsv = sv_2mortal(newSVsv(bufsv));
1859 buffer = sv_2pvutf8(bufsv, &blen);
1860 } else
1861 buffer = SvPV(bufsv, blen);
a0d0e21e 1862 }
7d59b7e4 1863 else {
8f34e12f
JH		 1864 if (DO_UTF8(bufsv)) {
1865 /* Not modifying source SV, so making a temporary copy. */
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 sv_utf8_downgrade(bufsv, FALSE);
1868 }
1869 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1870 }
1871
1872 if (PL_op->op_type == OP_SYSWRITE) {
1873 IV offset;
1874 if (DO_UTF8(bufsv)) {
1875 /* length and offset are in chars */
1876 blen = sv_len_utf8(bufsv);
1877 }
bbce6d69 1878 if (MARK < SP) {
a0d0e21e 1879 offset = SvIVx(*++MARK);
bbce6d69 1880 if (offset < 0) {
eb160463 1881 if (-offset > (IV)blen)
cea2e8a9 1882 DIE(aTHX_ "Offset outside string");
bbce6d69 1883 offset += blen;
eb160463 1884 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1885 DIE(aTHX_ "Offset outside string");
bbce6d69 1886 } else
a0d0e21e
LW		 1887 offset = 0;
1888 if (length > blen - offset)
1889 length = blen - offset;
7d59b7e4 1890 if (DO_UTF8(bufsv)) {
c8d31a35 1891 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1892 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1893 }
1894 else {
1895 buffer = buffer+offset;
1896 }
a7092146 1897#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1898 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1899 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1900 buffer, length, 0);
a7092146
GS		 1901 }
1902 else
1903#endif
1904 {
94e4c244 1905 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1906 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1907 buffer, length);
a7092146 1908 }
a0d0e21e
LW		 1909 }
1910#ifdef HAS_SOCKET
1911 else if (SP > MARK) {
1912 char *sockbuf;
1913 STRLEN mlen;
1914 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1915 /* length is really flags */
8c99d73e
GS		 1916 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1917 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1918 }
1919 else
7d59b7e4 1920 /* length is really flags */
8c99d73e 1921 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1922#else
1923 else
cea2e8a9 1924 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1925#endif
8c99d73e 1926 if (retval < 0)
a0d0e21e
LW		 1927 goto say_undef;
1928 SP = ORIGMARK;
f36eea10
JH		 1929 if (DO_UTF8(bufsv))
1930 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1931#if Size_t_size > IVSIZE
1932 PUSHn(retval);
1933#else
1934 PUSHi(retval);
1935#endif
a0d0e21e
LW		 1936 RETURN;
1937
1938 say_undef:
1939 SP = ORIGMARK;
1940 RETPUSHUNDEF;
1941}
1942
1943PP(pp_recv)
1944{
cea2e8a9 1945 return pp_sysread();
a0d0e21e
LW		 1946}
1947
1948PP(pp_eof)
1949{
39644a26 1950 dSP;
a0d0e21e 1951 GV *gv;
5b468f54 1952 IO *io;
4592e6ca 1953 MAGIC *mg;
a0d0e21e 1954
32da55ab 1955 if (MAXARG == 0) {
146174a9
CB		 1956 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1957 IO *io;
ed2c6b9b 1958 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1959 io = GvIO(gv);
1960 if (io && !IoIFP(io)) {
1961 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1962 IoLINES(io) = 0;
1963 IoFLAGS(io) &= ~IOf_START;
0473add9 1964 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1965 sv_setpvn(GvSV(gv), "-", 1);
1966 SvSETMAGIC(GvSV(gv));
1967 }
1968 else if (!nextargv(gv))
1969 RETPUSHYES;
1970 }
1971 }
1972 else
1973 gv = PL_last_in_gv; /* eof */
1974 }
a0d0e21e 1975 else
146174a9 1976 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1977
5b468f54
AMS		 1978 if (gv && (io = GvIO(gv))
1979 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1980 {
4592e6ca 1981 PUSHMARK(SP);
5b468f54 1982 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1983 PUTBACK;
1984 ENTER;
864dbfa3 1985 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1986 LEAVE;
1987 SPAGAIN;
1988 RETURN;
1989 }
1990
54310121 1991 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1992 RETURN;
1993}
1994
1995PP(pp_tell)
1996{
39644a26 1997 dSP; dTARGET;
301e8125 1998 GV *gv;
5b468f54 1999 IO *io;
4592e6ca 2000 MAGIC *mg;
a0d0e21e 2001
32da55ab 2002 if (MAXARG == 0)
3280af22 2003 gv = PL_last_in_gv;
a0d0e21e 2004 else
3280af22 2005 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2006
5b468f54
AMS		 2007 if (gv && (io = GvIO(gv))
2008 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2009 {
4592e6ca 2010 PUSHMARK(SP);
5b468f54 2011 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2012 PUTBACK;
2013 ENTER;
864dbfa3 2014 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2015 LEAVE;
2016 SPAGAIN;
2017 RETURN;
2018 }
2019
146174a9
CB		 2020#if LSEEKSIZE > IVSIZE
2021 PUSHn( do_tell(gv) );
2022#else
a0d0e21e 2023 PUSHi( do_tell(gv) );
146174a9 2024#endif
a0d0e21e
LW		 2025 RETURN;
2026}
2027
2028PP(pp_seek)
2029{
cea2e8a9 2030 return pp_sysseek();
137443ea 2031}
2032
2033PP(pp_sysseek)
2034{
39644a26 2035 dSP;
a0d0e21e 2036 GV *gv;
5b468f54 2037 IO *io;
a0d0e21e 2038 int whence = POPi;
146174a9
CB		 2039#if LSEEKSIZE > IVSIZE
2040 Off_t offset = (Off_t)SvNVx(POPs);
2041#else
d9b3e12d 2042 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2043#endif
4592e6ca 2044 MAGIC *mg;
a0d0e21e 2045
3280af22 2046 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2047
5b468f54
AMS		 2048 if (gv && (io = GvIO(gv))
2049 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2050 {
4592e6ca 2051 PUSHMARK(SP);
5b468f54 2052 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2053#if LSEEKSIZE > IVSIZE
2054 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2055#else
b448e4fe 2056 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2057#endif
b448e4fe 2058 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2059 PUTBACK;
2060 ENTER;
864dbfa3 2061 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2062 LEAVE;
2063 SPAGAIN;
2064 RETURN;
2065 }
2066
533c011a 2067 if (PL_op->op_type == OP_SEEK)
8903cb82 2068 PUSHs(boolSV(do_seek(gv, offset, whence)));
2069 else {
b448e4fe
JH		 2070 Off_t sought = do_sysseek(gv, offset, whence);
2071 if (sought < 0)
146174a9
CB		 2072 PUSHs(&PL_sv_undef);
2073 else {
b448e4fe 2074 SV* sv = sought ?
146174a9 2075#if LSEEKSIZE > IVSIZE
b448e4fe 2076 newSVnv((NV)sought)
146174a9 2077#else
b448e4fe 2078 newSViv(sought)
146174a9
CB		 2079#endif
2080 : newSVpvn(zero_but_true, ZBTLEN);
2081 PUSHs(sv_2mortal(sv));
2082 }
8903cb82 2083 }
a0d0e21e
LW		 2084 RETURN;
2085}
2086
2087PP(pp_truncate)
2088{
39644a26 2089 dSP;
8c99d73e
GS		 2090 /* There seems to be no consensus on the length type of truncate()
2091 * and ftruncate(), both off_t and size_t have supporters. In
2092 * general one would think that when using large files, off_t is
2093 * at least as wide as size_t, so using an off_t should be okay. */
2094 /* XXX Configure probe for the length type of *truncate() needed XXX */
2095 Off_t len;
a0d0e21e 2096
25342a55 2097#if Off_t_size > IVSIZE
8c99d73e
GS		 2098 len = (Off_t)POPn;
2099#else
2100 len = (Off_t)POPi;
2101#endif
2102 /* Checking for length < 0 is problematic as the type might or
301e8125 2103 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2104 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2105 SETERRNO(0,0);
d05c1ba0
JH		 2106 {
2107 STRLEN n_a;
2108 int result = 1;
2109 GV *tmpgv;
fe1d0b35
JH		 2110 IO *io;
2111
d05c1ba0
JH		 2112 if (PL_op->op_flags & OPf_SPECIAL) {
2113 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2114
fe1d0b35
JH		 2115 do_ftruncate_gv:
2116 if (!GvIO(tmpgv))
2117 result = 0;
d05c1ba0 2118 else {
fe1d0b35
JH		 2119 PerlIO *fp;
2120 io = GvIOp(tmpgv);
2121 do_ftruncate_io:
2122 TAINT_PROPER("truncate");
2123 if (!(fp = IoIFP(io))) {
2124 result = 0;
2125 }
2126 else {
2127 PerlIO_flush(fp);
cbdc8872 2128#ifdef HAS_TRUNCATE
fe1d0b35 2129 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2130#else
fe1d0b35 2131 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2132#endif
fe1d0b35
JH		 2133 result = 0;
2134 }
d05c1ba0 2135 }
cbdc8872 2136 }
d05c1ba0
JH		 2137 else {
2138 SV *sv = POPs;
2139 char *name;
72f496dc 2140
d05c1ba0
JH		 2141 if (SvTYPE(sv) == SVt_PVGV) {
2142 tmpgv = (GV*)sv; /* *main::FRED for example */
fe1d0b35 2143 goto do_ftruncate_gv;
d05c1ba0
JH		 2144 }
2145 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2146 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
fe1d0b35
JH		 2147 goto do_ftruncate_gv;
2148 }
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2150 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2151 goto do_ftruncate_io;
d05c1ba0 2152 }
1e422769 2153
d05c1ba0
JH		 2154 name = SvPV(sv, n_a);
2155 TAINT_PROPER("truncate");
cbdc8872 2156#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2157 if (truncate(name, len) < 0)
2158 result = 0;
cbdc8872 2159#else
d05c1ba0
JH		 2160 {
2161 int tmpfd;
2162
2163 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2164 result = 0;
d05c1ba0
JH		 2165 else {
2166 if (my_chsize(tmpfd, len) < 0)
2167 result = 0;
2168 PerlLIO_close(tmpfd);
2169 }
cbdc8872 2170 }
a0d0e21e 2171#endif
d05c1ba0 2172 }
a0d0e21e 2173
d05c1ba0
JH		 2174 if (result)
2175 RETPUSHYES;
2176 if (!errno)
5b7ea690 2177 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2178 RETPUSHUNDEF;
2179 }
a0d0e21e
LW		 2180}
2181
2182PP(pp_fcntl)
2183{
cea2e8a9 2184 return pp_ioctl();
a0d0e21e
LW		 2185}
2186
2187PP(pp_ioctl)
2188{
39644a26 2189 dSP; dTARGET;
748a9306 2190 SV *argsv = POPs;
3bb7c1b4 2191 unsigned int func = POPu;
c05e0e2f 2192 const int optype = PL_op->op_type;
a0d0e21e 2193 char *s;
324aa91a 2194 IV retval;
a0d0e21e 2195 GV *gv = (GV*)POPs;
c289d2f7 2196 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2197
748a9306 2198 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2199 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2200 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2201 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2202 RETPUSHUNDEF;
2203 }
2204
748a9306 2205 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2206 STRLEN len;
324aa91a 2207 STRLEN need;
748a9306 2208 s = SvPV_force(argsv, len);
324aa91a
HF		 2209 need = IOCPARM_LEN(func);
2210 if (len < need) {
2211 s = Sv_Grow(argsv, need + 1);
2212 SvCUR_set(argsv, need);
a0d0e21e
LW		 2213 }
2214
748a9306 2215 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2216 }
2217 else {
748a9306 2218 retval = SvIV(argsv);
c529f79d 2219 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2220 }
2221
2222 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2223
2224 if (optype == OP_IOCTL)
2225#ifdef HAS_IOCTL
76e3520e 2226 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2227#else
cea2e8a9 2228 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2229#endif
2230 else
c214f4ad
WB		 2231#ifndef HAS_FCNTL
2232 DIE(aTHX_ "fcntl is not implemented");
2233#else
55497cff 2234#if defined(OS2) && defined(__EMX__)
760ac839 2235 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2236#else
760ac839 2237 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2238#endif
f7288ffb 2239#endif
a0d0e21e 2240
f7288ffb 2241#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2242 if (SvPOK(argsv)) {
2243 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2244 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2245 OP_NAME(PL_op));
748a9306
LW		 2246 s[SvCUR(argsv)] = 0; /* put our null back */
2247 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2248 }
2249
2250 if (retval == -1)
2251 RETPUSHUNDEF;
2252 if (retval != 0) {
2253 PUSHi(retval);
2254 }
2255 else {
8903cb82 2256 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2257 }
4808266b 2258#endif
c214f4ad 2259 RETURN;
a0d0e21e
LW		 2260}
2261
2262PP(pp_flock)
2263{
9cad6237 2264#ifdef FLOCK
39644a26 2265 dSP; dTARGET;
a0d0e21e
LW		 2266 I32 value;
2267 int argtype;
2268 GV *gv;
bc37a18f 2269 IO *io = NULL;
760ac839 2270 PerlIO *fp;
16d20bd9 2271
a0d0e21e 2272 argtype = POPi;
32da55ab 2273 if (MAXARG == 0)
3280af22 2274 gv = PL_last_in_gv;
a0d0e21e
LW		 2275 else
2276 gv = (GV*)POPs;
bc37a18f
RG		 2277 if (gv && (io = GvIO(gv)))
2278 fp = IoIFP(io);
2279 else {
a0d0e21e 2280 fp = Nullfp;
bc37a18f
RG		 2281 io = NULL;
2282 }
a0d0e21e 2283 if (fp) {
68dc0745 2284 (void)PerlIO_flush(fp);
76e3520e 2285 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2286 }
cb50131a 2287 else {
bc37a18f
RG		 2288 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2289 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2290 value = 0;
5b7ea690 2291 SETERRNO(EBADF,RMS_IFI);
cb50131a 2292 }
a0d0e21e
LW		 2293 PUSHi(value);
2294 RETURN;
2295#else
cea2e8a9 2296 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2297#endif
2298}
2299
2300/* Sockets. */
2301
2302PP(pp_socket)
2303{
a0d0e21e 2304#ifdef HAS_SOCKET
9cad6237 2305 dSP;
a0d0e21e
LW		 2306 GV *gv;
2307 register IO *io;
2308 int protocol = POPi;
2309 int type = POPi;
2310 int domain = POPi;
2311 int fd;
2312
2313 gv = (GV*)POPs;
c289d2f7 2314 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2315
c289d2f7
JH		 2316 if (!gv || !io) {
2317 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2318 report_evil_fh(gv, io, PL_op->op_type);
2319 if (IoIFP(io))
2320 do_close(gv, FALSE);
5b7ea690 2321 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2322 RETPUSHUNDEF;
2323 }
2324
57171420
BS		 2325 if (IoIFP(io))
2326 do_close(gv, FALSE);
2327
a0d0e21e 2328 TAINT_PROPER("socket");
6ad3d225 2329 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2330 if (fd < 0)
2331 RETPUSHUNDEF;
5a560d3a
IZ		 2332 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2333 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2334 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2335 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2336 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2337 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2338 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2339 RETPUSHUNDEF;
2340 }
8d2a6795
GS		 2341#if defined(HAS_FCNTL) && defined(F_SETFD)
2342 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2343#endif
a0d0e21e 2344
d5ff79b3
OF		 2345#ifdef EPOC
2346 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2347#endif
2348
a0d0e21e
LW		 2349 RETPUSHYES;
2350#else
cea2e8a9 2351 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2352#endif
2353}
2354
2355PP(pp_sockpair)
2356{
c95c94b1 2357#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2358 dSP;
a0d0e21e
LW		 2359 GV *gv1;
2360 GV *gv2;
2361 register IO *io1;
2362 register IO *io2;
2363 int protocol = POPi;
2364 int type = POPi;
2365 int domain = POPi;
2366 int fd[2];
2367
2368 gv2 = (GV*)POPs;
2369 gv1 = (GV*)POPs;
c289d2f7
JH		 2370 io1 = gv1 ? GvIOn(gv1) : NULL;
2371 io2 = gv2 ? GvIOn(gv2) : NULL;
2372 if (!gv1 || !gv2 || !io1 || !io2) {
2373 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2374 if (!gv1 || !io1)
2375 report_evil_fh(gv1, io1, PL_op->op_type);
2376 if (!gv2 || !io2)
2377 report_evil_fh(gv1, io2, PL_op->op_type);
2378 }
2379 if (IoIFP(io1))
2380 do_close(gv1, FALSE);
2381 if (IoIFP(io2))
2382 do_close(gv2, FALSE);
a0d0e21e 2383 RETPUSHUNDEF;
c289d2f7 2384 }
a0d0e21e 2385
dc0d0a5f
JH		 2386 if (IoIFP(io1))
2387 do_close(gv1, FALSE);
2388 if (IoIFP(io2))
2389 do_close(gv2, FALSE);
57171420 2390
a0d0e21e 2391 TAINT_PROPER("socketpair");
6ad3d225 2392 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2393 RETPUSHUNDEF;
5a560d3a
IZ		 2394 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2395 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2396 IoTYPE(io1) = IoTYPE_SOCKET;
5a560d3a
IZ		 2397 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2398 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2399 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2400 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2401 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2402 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2403 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2404 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2405 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2406 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2407 RETPUSHUNDEF;
2408 }
8d2a6795
GS		 2409#if defined(HAS_FCNTL) && defined(F_SETFD)
2410 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2411 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2412#endif
a0d0e21e
LW		 2413
2414 RETPUSHYES;
2415#else
cea2e8a9 2416 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2417#endif
2418}
2419
2420PP(pp_bind)
2421{
a0d0e21e 2422#ifdef HAS_SOCKET
9cad6237 2423 dSP;
eec2d3df 2424#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2425 extern void GETPRIVMODE();
2426 extern void GETUSERMODE();
eec2d3df 2427#endif
748a9306 2428 SV *addrsv = POPs;
a0d0e21e
LW		 2429 char *addr;
2430 GV *gv = (GV*)POPs;
2431 register IO *io = GvIOn(gv);
2432 STRLEN len;
eec2d3df
GS		 2433 int bind_ok = 0;
2434#ifdef MPE
2435 int mpeprivmode = 0;
2436#endif
a0d0e21e
LW		 2437
2438 if (!io || !IoIFP(io))
2439 goto nuts;
2440
748a9306 2441 addr = SvPV(addrsv, len);
a0d0e21e 2442 TAINT_PROPER("bind");
eec2d3df
GS		 2443#ifdef MPE /* Deal with MPE bind() peculiarities */
2444 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2445 /* The address *MUST* stupidly be zero. */
2446 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2447 /* PRIV mode is required to bind() to ports < 1024. */
2448 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2449 ((struct sockaddr_in *)addr)->sin_port > 0) {
2450 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2451 mpeprivmode = 1;
2452 }
2453 }
2454#endif /* MPE */
2455 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2456 (struct sockaddr *)addr, len) >= 0)
2457 bind_ok = 1;
2458
2459#ifdef MPE /* Switch back to USER mode */
2460 if (mpeprivmode)
2461 GETUSERMODE();
2462#endif /* MPE */
2463
2464 if (bind_ok)
a0d0e21e
LW		 2465 RETPUSHYES;
2466 else
2467 RETPUSHUNDEF;
2468
2469nuts:
599cee73 2470 if (ckWARN(WARN_CLOSED))
bc37a18f 2471 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2472 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2473 RETPUSHUNDEF;
2474#else
cea2e8a9 2475 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2476#endif
2477}
2478
2479PP(pp_connect)
2480{
a0d0e21e 2481#ifdef HAS_SOCKET
9cad6237 2482 dSP;
748a9306 2483 SV *addrsv = POPs;
a0d0e21e
LW		 2484 char *addr;
2485 GV *gv = (GV*)POPs;
2486 register IO *io = GvIOn(gv);
2487 STRLEN len;
2488
2489 if (!io || !IoIFP(io))
2490 goto nuts;
2491
748a9306 2492 addr = SvPV(addrsv, len);
a0d0e21e 2493 TAINT_PROPER("connect");
6ad3d225 2494 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2495 RETPUSHYES;
2496 else
2497 RETPUSHUNDEF;
2498
2499nuts:
599cee73 2500 if (ckWARN(WARN_CLOSED))
bc37a18f 2501 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2502 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2503 RETPUSHUNDEF;
2504#else
cea2e8a9 2505 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2506#endif
2507}
2508
2509PP(pp_listen)
2510{
a0d0e21e 2511#ifdef HAS_SOCKET
9cad6237 2512 dSP;
a0d0e21e
LW		 2513 int backlog = POPi;
2514 GV *gv = (GV*)POPs;
c289d2f7 2515 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2516
c289d2f7 2517 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2518 goto nuts;
2519
6ad3d225 2520 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2521 RETPUSHYES;
2522 else
2523 RETPUSHUNDEF;
2524
2525nuts:
599cee73 2526 if (ckWARN(WARN_CLOSED))
bc37a18f 2527 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2528 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2529 RETPUSHUNDEF;
2530#else
cea2e8a9 2531 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2532#endif
2533}
2534
2535PP(pp_accept)
2536{
a0d0e21e 2537#ifdef HAS_SOCKET
9cad6237 2538 dSP; dTARGET;
a0d0e21e
LW		 2539 GV *ngv;
2540 GV *ggv;
2541 register IO *nstio;
2542 register IO *gstio;
26776375
JH		 2543 char namebuf[MAXPATHLEN];
2544#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2545 Sock_size_t len = sizeof (struct sockaddr_in);
2546#else
2547 Sock_size_t len = sizeof namebuf;
2548#endif
a0d0e21e
LW		 2549 int fd;
2550
2551 ggv = (GV*)POPs;
2552 ngv = (GV*)POPs;
2553
2554 if (!ngv)
2555 goto badexit;
2556 if (!ggv)
2557 goto nuts;
2558
2559 gstio = GvIO(ggv);
2560 if (!gstio || !IoIFP(gstio))
2561 goto nuts;
2562
2563 nstio = GvIOn(ngv);
26776375 2564 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2565 if (fd < 0)
2566 goto badexit;
a70048fb
AB		 2567 if (IoIFP(nstio))
2568 do_close(ngv, FALSE);
5a560d3a
IZ		 2569 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2570 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2571 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2572 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2573 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2574 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2575 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2576 goto badexit;
2577 }
8d2a6795
GS		 2578#if defined(HAS_FCNTL) && defined(F_SETFD)
2579 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2580#endif
a0d0e21e 2581
ed79a026 2582#ifdef EPOC
26776375 2583 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2584 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2585#endif
bfd7eeef 2586#ifdef __SCO_VERSION__
26776375 2587 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
bfd7eeef 2588#endif
ed79a026 2589
26776375 2590 PUSHp(namebuf, len);
a0d0e21e
LW		 2591 RETURN;
2592
2593nuts:
599cee73 2594 if (ckWARN(WARN_CLOSED))
bc37a18f 2595 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
5b7ea690 2596 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2597
2598badexit:
2599 RETPUSHUNDEF;
2600
2601#else
cea2e8a9 2602 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2603#endif
2604}
2605
2606PP(pp_shutdown)
2607{
a0d0e21e 2608#ifdef HAS_SOCKET
9cad6237 2609 dSP; dTARGET;
a0d0e21e
LW		 2610 int how = POPi;
2611 GV *gv = (GV*)POPs;
2612 register IO *io = GvIOn(gv);
2613
2614 if (!io || !IoIFP(io))
2615 goto nuts;
2616
6ad3d225 2617 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2618 RETURN;
2619
2620nuts:
599cee73 2621 if (ckWARN(WARN_CLOSED))
bc37a18f 2622 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2623 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2624 RETPUSHUNDEF;
2625#else
cea2e8a9 2626 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2627#endif
2628}
2629
2630PP(pp_gsockopt)
2631{
2632#ifdef HAS_SOCKET
cea2e8a9 2633 return pp_ssockopt();
a0d0e21e 2634#else
cea2e8a9 2635 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2636#endif
2637}
2638
2639PP(pp_ssockopt)
2640{
a0d0e21e 2641#ifdef HAS_SOCKET
9cad6237 2642 dSP;
533c011a 2643 int optype = PL_op->op_type;
a0d0e21e
LW		 2644 SV *sv;
2645 int fd;
2646 unsigned int optname;
2647 unsigned int lvl;
2648 GV *gv;
2649 register IO *io;
1e422769 2650 Sock_size_t len;
a0d0e21e
LW		 2651
2652 if (optype == OP_GSOCKOPT)
2653 sv = sv_2mortal(NEWSV(22, 257));
2654 else
2655 sv = POPs;
2656 optname = (unsigned int) POPi;
2657 lvl = (unsigned int) POPi;
2658
2659 gv = (GV*)POPs;
2660 io = GvIOn(gv);
2661 if (!io || !IoIFP(io))
2662 goto nuts;
2663
760ac839 2664 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2665 switch (optype) {
2666 case OP_GSOCKOPT:
748a9306 2667 SvGROW(sv, 257);
a0d0e21e 2668 (void)SvPOK_only(sv);
748a9306
LW		 2669 SvCUR_set(sv,256);
2670 *SvEND(sv) ='\0';
1e422769 2671 len = SvCUR(sv);
6ad3d225 2672 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2673 goto nuts2;
1e422769 2674 SvCUR_set(sv, len);
748a9306 2675 *SvEND(sv) ='\0';
a0d0e21e
LW		 2676 PUSHs(sv);
2677 break;
2678 case OP_SSOCKOPT: {
1e422769 2679 char *buf;
2680 int aint;
2681 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2682 STRLEN l;
2683 buf = SvPV(sv, l);
2684 len = l;
1e422769 2685 }
56ee1660 2686 else {
a0d0e21e
LW		 2687 aint = (int)SvIV(sv);
2688 buf = (char*)&aint;
2689 len = sizeof(int);
2690 }
6ad3d225 2691 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2692 goto nuts2;
3280af22 2693 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2694 }
2695 break;
2696 }
2697 RETURN;
2698
2699nuts:
599cee73 2700 if (ckWARN(WARN_CLOSED))
bc37a18f 2701 report_evil_fh(gv, io, optype);
5b7ea690 2702 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2703nuts2:
2704 RETPUSHUNDEF;
2705
2706#else
cea2e8a9 2707 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2708#endif
2709}
2710
2711PP(pp_getsockname)
2712{
2713#ifdef HAS_SOCKET
cea2e8a9 2714 return pp_getpeername();
a0d0e21e 2715#else
cea2e8a9 2716 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2717#endif
2718}
2719
2720PP(pp_getpeername)
2721{
a0d0e21e 2722#ifdef HAS_SOCKET
9cad6237 2723 dSP;
533c011a 2724 int optype = PL_op->op_type;
a0d0e21e
LW		 2725 SV *sv;
2726 int fd;
2727 GV *gv = (GV*)POPs;
2728 register IO *io = GvIOn(gv);
1e422769 2729 Sock_size_t len;
a0d0e21e
LW		 2730
2731 if (!io || !IoIFP(io))
2732 goto nuts;
2733
2734 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2735 (void)SvPOK_only(sv);
1e422769 2736 len = 256;
2737 SvCUR_set(sv, len);
748a9306 2738 *SvEND(sv) ='\0';
760ac839 2739 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2740 switch (optype) {
2741 case OP_GETSOCKNAME:
6ad3d225 2742 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2743 goto nuts2;
2744 break;
2745 case OP_GETPEERNAME:
6ad3d225 2746 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2747 goto nuts2;
490ab354
JH		 2748#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2749 {
2750 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";
2751 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2752 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2753 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2754 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2755 goto nuts2;
490ab354
JH		 2756 }
2757 }
2758#endif
a0d0e21e
LW		 2759 break;
2760 }
13826f2c
CS		 2761#ifdef BOGUS_GETNAME_RETURN
2762 /* Interactive Unix, getpeername() and getsockname()
2763 does not return valid namelen */
1e422769 2764 if (len == BOGUS_GETNAME_RETURN)
2765 len = sizeof(struct sockaddr);
13826f2c 2766#endif
1e422769 2767 SvCUR_set(sv, len);
748a9306 2768 *SvEND(sv) ='\0';
a0d0e21e
LW		 2769 PUSHs(sv);
2770 RETURN;
2771
2772nuts:
599cee73 2773 if (ckWARN(WARN_CLOSED))
bc37a18f 2774 report_evil_fh(gv, io, optype);
5b7ea690 2775 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2776nuts2:
2777 RETPUSHUNDEF;
2778
2779#else
cea2e8a9 2780 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2781#endif
2782}
2783
2784/* Stat calls. */
2785
2786PP(pp_lstat)
2787{
cea2e8a9 2788 return pp_stat();
a0d0e21e
LW		 2789}
2790
2791PP(pp_stat)
2792{
39644a26 2793 dSP;
2dd78f96 2794 GV *gv;
54310121 2795 I32 gimme;
a0d0e21e 2796 I32 max = 13;
2d8e6c8d 2797 STRLEN n_a;
a0d0e21e 2798
533c011a 2799 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2800 gv = cGVOP_gv;
8a4e5b40 2801 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2802 if (gv != PL_defgv) {
2803 if (ckWARN(WARN_IO))
9014280d 2804 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2805 "lstat() on filehandle %s", GvENAME(gv));
2806 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2807 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2808 }
2809
748a9306 2810 do_fstat:
2dd78f96 2811 if (gv != PL_defgv) {
3280af22 2812 PL_laststype = OP_STAT;
2dd78f96 2813 PL_statgv = gv;
2a8de9e2 2814 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2815 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2816 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2817 }
9ddeeac9 2818 if (PL_laststatval < 0) {
2dd78f96
JH		 2819 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2820 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2821 max = 0;
9ddeeac9 2822 }
a0d0e21e
LW		 2823 }
2824 else {
748a9306
LW		 2825 SV* sv = POPs;
2826 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2827 gv = (GV*)sv;
748a9306
LW		 2828 goto do_fstat;
2829 }
2830 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2831 gv = (GV*)SvRV(sv);
5d3e98de 2832 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2833 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2834 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2835 goto do_fstat;
2836 }
2d8e6c8d 2837 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2838 PL_statgv = Nullgv;
533c011a
NIS		 2839 PL_laststype = PL_op->op_type;
2840 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2841 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2842 else
2d8e6c8d 2843 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2844 if (PL_laststatval < 0) {
2d8e6c8d 2845 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2846 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2847 max = 0;
2848 }
2849 }
2850
54310121 2851 gimme = GIMME_V;
2852 if (gimme != G_ARRAY) {
2853 if (gimme != G_VOID)
2854 XPUSHs(boolSV(max));
2855 RETURN;
a0d0e21e
LW		 2856 }
2857 if (max) {
36477c24 2858 EXTEND(SP, max);
2859 EXTEND_MORTAL(max);
1ff81528
PL		 2860 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2861 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2862 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2863 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2864#if Uid_t_size > IVSIZE
2865 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2866#else
23dcd6c8 2867# if Uid_t_sign <= 0
1ff81528 2868 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2869# else
2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2871# endif
146174a9 2872#endif
301e8125 2873#if Gid_t_size > IVSIZE
146174a9
CB		 2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2875#else
23dcd6c8 2876# if Gid_t_sign <= 0
1ff81528 2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2878# else
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2880# endif
146174a9 2881#endif
cbdc8872 2882#ifdef USE_STAT_RDEV
1ff81528 2883 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2884#else
79cb57f6 2885 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2886#endif
146174a9 2887#if Off_t_size > IVSIZE
4f4e7967 2888 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2889#else
1ff81528 2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2891#endif
cbdc8872 2892#ifdef BIG_TIME
172ae379
JH		 2893 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2894 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2895 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2896#else
1ff81528
PL		 2897 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2898 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2900#endif
a0d0e21e 2901#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2902 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2903 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2904#else
79cb57f6
GS		 2905 PUSHs(sv_2mortal(newSVpvn("", 0)));
2906 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2907#endif
2908 }
2909 RETURN;
2910}
2911
2912PP(pp_ftrread)
2913{
9cad6237 2914 I32 result;
2a3ff820 2915 dSP;
5ff3f7a4 2916#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2917 STRLEN n_a;
bfd7eeef
JH		 2918 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2919 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2920 if (result == 0)
2921 RETPUSHYES;
2922 if (result < 0)
2923 RETPUSHUNDEF;
2924 RETPUSHNO;
22865c03
GS		 2925 }
2926 else
cea2e8a9 2927 result = my_stat();
5ff3f7a4 2928#else
cea2e8a9 2929 result = my_stat();
5ff3f7a4 2930#endif
22865c03 2931 SPAGAIN;
a0d0e21e
LW		 2932 if (result < 0)
2933 RETPUSHUNDEF;
3280af22 2934 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2935 RETPUSHYES;
2936 RETPUSHNO;
2937}
2938
2939PP(pp_ftrwrite)
2940{
9cad6237 2941 I32 result;
2a3ff820 2942 dSP;
5ff3f7a4 2943#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2944 STRLEN n_a;
bfd7eeef
JH		 2945 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2946 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2947 if (result == 0)
2948 RETPUSHYES;
2949 if (result < 0)
2950 RETPUSHUNDEF;
2951 RETPUSHNO;
22865c03
GS		 2952 }
2953 else
cea2e8a9 2954 result = my_stat();
5ff3f7a4 2955#else
cea2e8a9 2956 result = my_stat();
5ff3f7a4 2957#endif
22865c03 2958 SPAGAIN;
a0d0e21e
LW		 2959 if (result < 0)
2960 RETPUSHUNDEF;
3280af22 2961 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2962 RETPUSHYES;
2963 RETPUSHNO;
2964}
2965
2966PP(pp_ftrexec)
2967{
9cad6237 2968 I32 result;
2a3ff820 2969 dSP;
5ff3f7a4 2970#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2971 STRLEN n_a;
bfd7eeef
JH		 2972 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2973 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2974 if (result == 0)
2975 RETPUSHYES;
2976 if (result < 0)
2977 RETPUSHUNDEF;
2978 RETPUSHNO;
22865c03
GS		 2979 }
2980 else
cea2e8a9 2981 result = my_stat();
5ff3f7a4 2982#else
cea2e8a9 2983 result = my_stat();
5ff3f7a4 2984#endif
22865c03 2985 SPAGAIN;
a0d0e21e
LW		 2986 if (result < 0)
2987 RETPUSHUNDEF;
3280af22 2988 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2989 RETPUSHYES;
2990 RETPUSHNO;
2991}
2992
2993PP(pp_fteread)
2994{
9cad6237 2995 I32 result;
2a3ff820 2996 dSP;
5ff3f7a4 2997#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2998 STRLEN n_a;
bfd7eeef
JH		 2999 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3000 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3001 if (result == 0)
3002 RETPUSHYES;
3003 if (result < 0)
3004 RETPUSHUNDEF;
3005 RETPUSHNO;
22865c03
GS		 3006 }
3007 else
cea2e8a9 3008 result = my_stat();
5ff3f7a4 3009#else
cea2e8a9 3010 result = my_stat();
5ff3f7a4 3011#endif
22865c03 3012 SPAGAIN;
a0d0e21e
LW		 3013 if (result < 0)
3014 RETPUSHUNDEF;
3280af22 3015 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3016 RETPUSHYES;
3017 RETPUSHNO;
3018}
3019
3020PP(pp_ftewrite)
3021{
9cad6237 3022 I32 result;
2a3ff820 3023 dSP;
5ff3f7a4 3024#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 3025 STRLEN n_a;
bfd7eeef
JH		 3026 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3027 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3028 if (result == 0)
3029 RETPUSHYES;
3030 if (result < 0)
3031 RETPUSHUNDEF;
3032 RETPUSHNO;
22865c03
GS		 3033 }
3034 else
cea2e8a9 3035 result = my_stat();
5ff3f7a4 3036#else
cea2e8a9 3037 result = my_stat();
5ff3f7a4 3038#endif
22865c03 3039 SPAGAIN;
a0d0e21e
LW		 3040 if (result < 0)
3041 RETPUSHUNDEF;
3280af22 3042 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3043 RETPUSHYES;
3044 RETPUSHNO;
3045}
3046
3047PP(pp_fteexec)
3048{
9cad6237 3049 I32 result;
2a3ff820 3050 dSP;
5ff3f7a4 3051#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 3052 STRLEN n_a;
bfd7eeef
JH		 3053 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3054 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3055 if (result == 0)
3056 RETPUSHYES;
3057 if (result < 0)
3058 RETPUSHUNDEF;
3059 RETPUSHNO;
22865c03
GS		 3060 }
3061 else
cea2e8a9 3062 result = my_stat();
5ff3f7a4 3063#else
cea2e8a9 3064 result = my_stat();
5ff3f7a4 3065#endif
22865c03 3066 SPAGAIN;
a0d0e21e
LW		 3067 if (result < 0)
3068 RETPUSHUNDEF;
3280af22 3069 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3070 RETPUSHYES;
3071 RETPUSHNO;
3072}
3073
3074PP(pp_ftis)
3075{
9cad6237 3076 I32 result = my_stat();
2a3ff820 3077 dSP;
a0d0e21e
LW		 3078 if (result < 0)
3079 RETPUSHUNDEF;
3080 RETPUSHYES;
3081}
3082
3083PP(pp_fteowned)
3084{
cea2e8a9 3085 return pp_ftrowned();
a0d0e21e
LW		 3086}
3087
3088PP(pp_ftrowned)
3089{
9cad6237 3090 I32 result = my_stat();
2a3ff820 3091 dSP;
a0d0e21e
LW		 3092 if (result < 0)
3093 RETPUSHUNDEF;
146174a9
CB		 3094 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3095 PL_euid : PL_uid) )
a0d0e21e
LW		 3096 RETPUSHYES;
3097 RETPUSHNO;
3098}
3099
3100PP(pp_ftzero)
3101{
9cad6237 3102 I32 result = my_stat();
2a3ff820 3103 dSP;
a0d0e21e
LW		 3104 if (result < 0)
3105 RETPUSHUNDEF;
146174a9 3106 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3107 RETPUSHYES;
3108 RETPUSHNO;
3109}
3110
3111PP(pp_ftsize)
3112{
9cad6237 3113 I32 result = my_stat();
2a3ff820 3114 dSP; dTARGET;
a0d0e21e
LW		 3115 if (result < 0)
3116 RETPUSHUNDEF;
146174a9
CB		 3117#if Off_t_size > IVSIZE
3118 PUSHn(PL_statcache.st_size);
3119#else
3280af22 3120 PUSHi(PL_statcache.st_size);
146174a9 3121#endif
a0d0e21e
LW		 3122 RETURN;
3123}
3124
3125PP(pp_ftmtime)
3126{
9cad6237 3127 I32 result = my_stat();
2a3ff820 3128 dSP; dTARGET;
a0d0e21e
LW		 3129 if (result < 0)
3130 RETPUSHUNDEF;
a9dd8465 3131 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3132 RETURN;
3133}
3134
3135PP(pp_ftatime)
3136{
9cad6237 3137 I32 result = my_stat();
2a3ff820 3138 dSP; dTARGET;
a0d0e21e
LW		 3139 if (result < 0)
3140 RETPUSHUNDEF;
a9dd8465 3141 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3142 RETURN;
3143}
3144
3145PP(pp_ftctime)
3146{
9cad6237 3147 I32 result = my_stat();
2a3ff820 3148 dSP; dTARGET;
a0d0e21e
LW		 3149 if (result < 0)
3150 RETPUSHUNDEF;
a9dd8465 3151 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3152 RETURN;
3153}
3154
3155PP(pp_ftsock)
3156{
9cad6237 3157 I32 result = my_stat();
2a3ff820 3158 dSP;
a0d0e21e
LW		 3159 if (result < 0)
3160 RETPUSHUNDEF;
3280af22 3161 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3162 RETPUSHYES;
3163 RETPUSHNO;
3164}
3165
3166PP(pp_ftchr)
3167{
9cad6237 3168 I32 result = my_stat();
2a3ff820 3169 dSP;
a0d0e21e
LW		 3170 if (result < 0)
3171 RETPUSHUNDEF;
3280af22 3172 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3173 RETPUSHYES;
3174 RETPUSHNO;
3175}
3176
3177PP(pp_ftblk)
3178{
9cad6237 3179 I32 result = my_stat();
2a3ff820 3180 dSP;
a0d0e21e
LW		 3181 if (result < 0)
3182 RETPUSHUNDEF;
3280af22 3183 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3184 RETPUSHYES;
3185 RETPUSHNO;
3186}
3187
3188PP(pp_ftfile)
3189{
9cad6237 3190 I32 result = my_stat();
2a3ff820 3191 dSP;
a0d0e21e
LW		 3192 if (result < 0)
3193 RETPUSHUNDEF;
3280af22 3194 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3195 RETPUSHYES;
3196 RETPUSHNO;
3197}
3198
3199PP(pp_ftdir)
3200{
9cad6237 3201 I32 result = my_stat();
2a3ff820 3202 dSP;
a0d0e21e
LW		 3203 if (result < 0)
3204 RETPUSHUNDEF;
3280af22 3205 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3206 RETPUSHYES;
3207 RETPUSHNO;
3208}
3209
3210PP(pp_ftpipe)
3211{
9cad6237 3212 I32 result = my_stat();
2a3ff820 3213 dSP;
a0d0e21e
LW		 3214 if (result < 0)
3215 RETPUSHUNDEF;
3280af22 3216 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3217 RETPUSHYES;
3218 RETPUSHNO;
3219}
3220
3221PP(pp_ftlink)
3222{
9cad6237 3223 I32 result = my_lstat();
2a3ff820 3224 dSP;
a0d0e21e
LW		 3225 if (result < 0)
3226 RETPUSHUNDEF;
3280af22 3227 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3228 RETPUSHYES;
3229 RETPUSHNO;
3230}
3231
3232PP(pp_ftsuid)
3233{
39644a26 3234 dSP;
a0d0e21e 3235#ifdef S_ISUID
cea2e8a9 3236 I32 result = my_stat();
a0d0e21e
LW		 3237 SPAGAIN;
3238 if (result < 0)
3239 RETPUSHUNDEF;
3280af22 3240 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3241 RETPUSHYES;
3242#endif
3243 RETPUSHNO;
3244}
3245
3246PP(pp_ftsgid)
3247{
39644a26 3248 dSP;
a0d0e21e 3249#ifdef S_ISGID
cea2e8a9 3250 I32 result = my_stat();
a0d0e21e
LW		 3251 SPAGAIN;
3252 if (result < 0)
3253 RETPUSHUNDEF;
3280af22 3254 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3255 RETPUSHYES;
3256#endif
3257 RETPUSHNO;
3258}
3259
3260PP(pp_ftsvtx)
3261{
39644a26 3262 dSP;
a0d0e21e 3263#ifdef S_ISVTX
cea2e8a9 3264 I32 result = my_stat();
a0d0e21e
LW		 3265 SPAGAIN;
3266 if (result < 0)
3267 RETPUSHUNDEF;
3280af22 3268 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3269 RETPUSHYES;
3270#endif
3271 RETPUSHNO;
3272}
3273
3274PP(pp_fttty)
3275{
39644a26 3276 dSP;
a0d0e21e
LW		 3277 int fd;
3278 GV *gv;
fb73857a 3279 char *tmps = Nullch;
2d8e6c8d 3280 STRLEN n_a;
fb73857a 3281
533c011a 3282 if (PL_op->op_flags & OPf_REF)
146174a9 3283 gv = cGVOP_gv;
fb73857a 3284 else if (isGV(TOPs))
3285 gv = (GV*)POPs;
3286 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3287 gv = (GV*)SvRV(POPs);
a0d0e21e 3288 else
2d8e6c8d 3289 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3290
a0d0e21e 3291 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3292 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3293 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3294 fd = atoi(tmps);
3295 else
3296 RETPUSHUNDEF;
6ad3d225 3297 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3298 RETPUSHYES;
3299 RETPUSHNO;
3300}
3301
16d20bd9
AD		 3302#if defined(atarist) /* this will work with atariST. Configure will
3303 make guesses for other systems. */
3304# define FILE_base(f) ((f)->_base)
3305# define FILE_ptr(f) ((f)->_ptr)
3306# define FILE_cnt(f) ((f)->_cnt)
3307# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3308#endif
3309
3310PP(pp_fttext)
3311{
39644a26 3312 dSP;
a0d0e21e
LW		 3313 I32 i;
3314 I32 len;
3315 I32 odd = 0;
3316 STDCHAR tbuf[512];
3317 register STDCHAR *s;
3318 register IO *io;
5f05dabc 3319 register SV *sv;
3320 GV *gv;
2d8e6c8d 3321 STRLEN n_a;
146174a9 3322 PerlIO *fp;
a0d0e21e 3323
533c011a 3324 if (PL_op->op_flags & OPf_REF)
146174a9 3325 gv = cGVOP_gv;
5f05dabc 3326 else if (isGV(TOPs))
3327 gv = (GV*)POPs;
3328 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3329 gv = (GV*)SvRV(POPs);
3330 else
3331 gv = Nullgv;
3332
3333 if (gv) {
a0d0e21e 3334 EXTEND(SP, 1);
3280af22
NIS		 3335 if (gv == PL_defgv) {
3336 if (PL_statgv)
3337 io = GvIO(PL_statgv);
a0d0e21e 3338 else {
3280af22 3339 sv = PL_statname;
a0d0e21e
LW		 3340 goto really_filename;
3341 }
3342 }
3343 else {
3280af22
NIS		 3344 PL_statgv = gv;
3345 PL_laststatval = -1;
2a8de9e2 3346 sv_setpvn(PL_statname, "", 0);
3280af22 3347 io = GvIO(PL_statgv);
a0d0e21e
LW		 3348 }
3349 if (io && IoIFP(io)) {
5f05dabc 3350 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3351 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3352 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3353 if (PL_laststatval < 0)
5f05dabc 3354 RETPUSHUNDEF;
9cbac4c7 3355 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3356 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3357 RETPUSHNO;
3358 else
3359 RETPUSHYES;
9cbac4c7 3360 }
a20bf0c3 3361 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3362 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3363 if (i != EOF)
760ac839 3364 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3365 }
a20bf0c3 3366 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3367 RETPUSHYES;
a20bf0c3
JH		 3368 len = PerlIO_get_bufsiz(IoIFP(io));
3369 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3370 /* sfio can have large buffers - limit to 512 */
3371 if (len > 512)
3372 len = 512;
a0d0e21e
LW		 3373 }
3374 else {
2dd78f96 3375 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3376 gv = cGVOP_gv;
2dd78f96 3377 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3378 }
5b7ea690 3379 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3380 RETPUSHUNDEF;
3381 }
3382 }
3383 else {
3384 sv = POPs;
5f05dabc 3385 really_filename:
3280af22 3386 PL_statgv = Nullgv;
5c9aa243 3387 PL_laststype = OP_STAT;
2d8e6c8d 3388 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3389 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
67bae6b3 3390 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3391 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3392 RETPUSHUNDEF;
3393 }
146174a9
CB		 3394 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3395 if (PL_laststatval < 0) {
3396 (void)PerlIO_close(fp);
5f05dabc 3397 RETPUSHUNDEF;
146174a9 3398 }
60382766 3399 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3400 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3401 (void)PerlIO_close(fp);
a0d0e21e 3402 if (len <= 0) {
533c011a 3403 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3404 RETPUSHNO; /* special case NFS directories */
3405 RETPUSHYES; /* null file is anything */
3406 }
3407 s = tbuf;
3408 }
3409
3410 /* now scan s to look for textiness */
4633a7c4 3411 /* XXX ASCII dependent code */
a0d0e21e 3412
146174a9
CB		 3413#if defined(DOSISH) || defined(USEMYBINMODE)
3414 /* ignore trailing ^Z on short files */
3415 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3416 --len;
3417#endif
3418
a0d0e21e
LW		 3419 for (i = 0; i < len; i++, s++) {
3420 if (!*s) { /* null never allowed in text */
3421 odd += len;
3422 break;
3423 }
9d116dd7 3424#ifdef EBCDIC
301e8125 3425 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3426 odd++;
3427#else
146174a9
CB		 3428 else if (*s & 128) {
3429#ifdef USE_LOCALE
2de3dbcc 3430 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3431 continue;
3432#endif
3433 /* utf8 characters don't count as odd */
fd400ab9 3434 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3435 int ulen = UTF8SKIP(s);
3436 if (ulen < len - i) {
3437 int j;
3438 for (j = 1; j < ulen; j++) {
fd400ab9 3439 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3440 goto not_utf8;
3441 }
3442 --ulen; /* loop does extra increment */
3443 s += ulen;
3444 i += ulen;
3445 continue;
3446 }
3447 }
3448 not_utf8:
3449 odd++;
146174a9 3450 }
a0d0e21e
LW		 3451 else if (*s < 32 &&
3452 *s != '\n' && *s != '\r' && *s != '\b' &&
3453 *s != '\t' && *s != '\f' && *s != 27)
3454 odd++;
9d116dd7 3455#endif
a0d0e21e
LW		 3456 }
3457
533c011a 3458 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3459 RETPUSHNO;
3460 else
3461 RETPUSHYES;
3462}
3463
3464PP(pp_ftbinary)
3465{
cea2e8a9 3466 return pp_fttext();
a0d0e21e
LW		 3467}
3468
3469/* File calls. */
3470
3471PP(pp_chdir)
3472{
39644a26 3473 dSP; dTARGET;
a0d0e21e
LW		 3474 char *tmps;
3475 SV **svp;
2d8e6c8d 3476 STRLEN n_a;
a0d0e21e 3477
35ae6b54
MS		 3478 if( MAXARG == 1 )
3479 tmps = POPpx;
3480 else
3481 tmps = 0;
3482
3483 if( !tmps || !*tmps ) {
3484 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3485 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3486#ifdef VMS
35ae6b54 3487 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3488#endif
35ae6b54
MS		 3489 )
3490 {
3491 if( MAXARG == 1 )
9014280d 3492 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3493 tmps = SvPV(*svp, n_a);
3494 }
72f496dc 3495 else {
389ec635 3496 PUSHi(0);
b7ab37f8 3497 TAINT_PROPER("chdir");
389ec635
MS		 3498 RETURN;
3499 }
8ea155d1 3500 }
8ea155d1 3501
a0d0e21e 3502 TAINT_PROPER("chdir");
6ad3d225 3503 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3504#ifdef VMS
3505 /* Clear the DEFAULT element of ENV so we'll get the new value
3506 * in the future. */
6b88bc9c 3507 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3508#endif
a0d0e21e
LW		 3509 RETURN;
3510}
3511
3512PP(pp_chown)
3513{
a0d0e21e 3514#ifdef HAS_CHOWN
76ffd3b9
IZ		 3515 dSP; dMARK; dTARGET;
3516 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3517
a0d0e21e
LW		 3518 SP = MARK;
3519 PUSHi(value);
3520 RETURN;
3521#else
0322a713 3522 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3523#endif
3524}
3525
3526PP(pp_chroot)
3527{
a0d0e21e 3528#ifdef HAS_CHROOT
76ffd3b9 3529 dSP; dTARGET;
2d8e6c8d 3530 STRLEN n_a;
d05c1ba0 3531 char *tmps = POPpx;
a0d0e21e
LW		 3532 TAINT_PROPER("chroot");
3533 PUSHi( chroot(tmps) >= 0 );
3534 RETURN;
3535#else
cea2e8a9 3536 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3537#endif
3538}
3539
3540PP(pp_unlink)
3541{
39644a26 3542 dSP; dMARK; dTARGET;
a0d0e21e 3543 I32 value;
533c011a 3544 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3545 SP = MARK;
3546 PUSHi(value);
3547 RETURN;
3548}
3549
3550PP(pp_chmod)
3551{
39644a26 3552 dSP; dMARK; dTARGET;
a0d0e21e 3553 I32 value;
533c011a 3554 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3555 SP = MARK;
3556 PUSHi(value);
3557 RETURN;
3558}
3559
3560PP(pp_utime)
3561{
39644a26 3562 dSP; dMARK; dTARGET;
a0d0e21e 3563 I32 value;
533c011a 3564 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3565 SP = MARK;
3566 PUSHi(value);
3567 RETURN;
3568}
3569
3570PP(pp_rename)
3571{
39644a26 3572 dSP; dTARGET;
a0d0e21e 3573 int anum;
2d8e6c8d 3574 STRLEN n_a;
a0d0e21e 3575
2d8e6c8d
GS		 3576 char *tmps2 = POPpx;
3577 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3578 TAINT_PROPER("rename");
3579#ifdef HAS_RENAME
baed7233 3580 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3581#else
6b88bc9c 3582 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3583 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3584 anum = 1;
3585 else {
3654eb6c 3586 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3587 (void)UNLINK(tmps2);
3588 if (!(anum = link(tmps, tmps2)))
3589 anum = UNLINK(tmps);
3590 }
a0d0e21e
LW		 3591 }
3592#endif
3593 SETi( anum >= 0 );
3594 RETURN;
3595}
3596
3597PP(pp_link)
3598{
a0d0e21e 3599#ifdef HAS_LINK
370f6000 3600 dSP; dTARGET;
2d8e6c8d
GS		 3601 STRLEN n_a;
3602 char *tmps2 = POPpx;
3603 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3604 TAINT_PROPER("link");
146174a9 3605 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3606 RETURN;
a0d0e21e 3607#else
0322a713 3608 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3609#endif
a0d0e21e
LW		 3610}
3611
3612PP(pp_symlink)
3613{
a0d0e21e 3614#ifdef HAS_SYMLINK
9cad6237 3615 dSP; dTARGET;
2d8e6c8d
GS		 3616 STRLEN n_a;
3617 char *tmps2 = POPpx;
3618 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3619 TAINT_PROPER("symlink");
3620 SETi( symlink(tmps, tmps2) >= 0 );
3621 RETURN;
3622#else
cea2e8a9 3623 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3624#endif
3625}
3626
3627PP(pp_readlink)
3628{
76ffd3b9 3629 dSP;
a0d0e21e 3630#ifdef HAS_SYMLINK
76ffd3b9 3631 dTARGET;
a0d0e21e 3632 char *tmps;
46fc3d4c 3633 char buf[MAXPATHLEN];
a0d0e21e 3634 int len;
2d8e6c8d 3635 STRLEN n_a;
46fc3d4c 3636
fb73857a 3637#ifndef INCOMPLETE_TAINTS
3638 TAINT;
3639#endif
2d8e6c8d 3640 tmps = POPpx;
97dcea33 3641 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3642 EXTEND(SP, 1);
3643 if (len < 0)
3644 RETPUSHUNDEF;
3645 PUSHp(buf, len);
3646 RETURN;
3647#else
3648 EXTEND(SP, 1);
3649 RETSETUNDEF; /* just pretend it's a normal file */
3650#endif
3651}
3652
3653#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3654STATIC int
cea2e8a9 3655S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3656{
1e422769 3657 char *save_filename = filename;
3658 char *cmdline;
3659 char *s;
760ac839 3660 PerlIO *myfp;
1e422769 3661 int anum = 1;
a0d0e21e 3662
1e422769 3663 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3664 strcpy(cmdline, cmd);
3665 strcat(cmdline, " ");
3666 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3667 *s++ = '\\';
3668 *s++ = *filename++;
3669 }
3670 strcpy(s, " 2>&1");
6ad3d225 3671 myfp = PerlProc_popen(cmdline, "r");
1e422769 3672 Safefree(cmdline);
3673
a0d0e21e 3674 if (myfp) {
1e422769 3675 SV *tmpsv = sv_newmortal();
6b88bc9c 3676 /* Need to save/restore 'PL_rs' ?? */
760ac839 3677 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3678 (void)PerlProc_pclose(myfp);
a0d0e21e 3679 if (s != Nullch) {
1e422769 3680 int e;
3681 for (e = 1;
a0d0e21e 3682#ifdef HAS_SYS_ERRLIST
1e422769 3683 e <= sys_nerr
3684#endif
3685 ; e++)
3686 {
3687 /* you don't see this */
3688 char *errmsg =
3689#ifdef HAS_SYS_ERRLIST
3690 sys_errlist[e]
a0d0e21e 3691#else
1e422769 3692 strerror(e)
a0d0e21e 3693#endif
1e422769 3694 ;
3695 if (!errmsg)
3696 break;
3697 if (instr(s, errmsg)) {
3698 SETERRNO(e,0);
3699 return 0;
3700 }
a0d0e21e 3701 }
748a9306 3702 SETERRNO(0,0);
a0d0e21e
LW		 3703#ifndef EACCES
3704#define EACCES EPERM
3705#endif
1e422769 3706 if (instr(s, "cannot make"))
5b7ea690 3707 SETERRNO(EEXIST,RMS_FEX);
1e422769 3708 else if (instr(s, "existing file"))
5b7ea690 3709 SETERRNO(EEXIST,RMS_FEX);
1e422769 3710 else if (instr(s, "ile exists"))
5b7ea690 3711 SETERRNO(EEXIST,RMS_FEX);
1e422769 3712 else if (instr(s, "non-exist"))
5b7ea690 3713 SETERRNO(ENOENT,RMS_FNF);
1e422769 3714 else if (instr(s, "does not exist"))
5b7ea690 3715 SETERRNO(ENOENT,RMS_FNF);
1e422769 3716 else if (instr(s, "not empty"))
5b7ea690 3717 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3718 else if (instr(s, "cannot access"))
5b7ea690 3719 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3720 else
5b7ea690 3721 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3722 return 0;
3723 }
3724 else { /* some mkdirs return no failure indication */
6b88bc9c 3725 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3726 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3727 anum = !anum;
3728 if (anum)
748a9306 3729 SETERRNO(0,0);
a0d0e21e 3730 else
5b7ea690 3731 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3732 }
3733 return anum;
3734 }
3735 else
3736 return 0;
3737}
3738#endif
3739
c04fee9e
JH		 3740/* This macro removes trailing slashes from a directory name.
3741 * Different operating and file systems take differently to
3742 * trailing slashes. According to POSIX 1003.1 1996 Edition
3743 * any number of trailing slashes should be allowed.
3744 * Thusly we snip them away so that even non-conforming
3745 * systems are happy.
3746 * We should probably do this "filtering" for all
3747 * the functions that expect (potentially) directory names:
3748 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3749 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3750
3751#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3752 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3753 do { \
3754 (len)--; \
3755 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3756 (tmps) = savepvn((tmps), (len)); \
3757 (copy) = TRUE; \
3758 }
3759
a0d0e21e
LW		 3760PP(pp_mkdir)
3761{
39644a26 3762 dSP; dTARGET;
5a211162 3763 int mode;
a0d0e21e
LW		 3764#ifndef HAS_MKDIR
3765 int oldumask;
3766#endif
df25ddba 3767 STRLEN len;
5a211162 3768 char *tmps;
df25ddba 3769 bool copy = FALSE;
5a211162
GS		 3770
3771 if (MAXARG > 1)
3772 mode = POPi;
3773 else
3774 mode = 0777;
3775
c04fee9e 3776 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3777
3778 TAINT_PROPER("mkdir");
3779#ifdef HAS_MKDIR
6ad3d225 3780 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3781#else
3782 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3783 oldumask = PerlLIO_umask(0);
3784 PerlLIO_umask(oldumask);
3785 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3786#endif
df25ddba
JH		 3787 if (copy)
3788 Safefree(tmps);
a0d0e21e
LW		 3789 RETURN;
3790}
3791
3792PP(pp_rmdir)
3793{
39644a26 3794 dSP; dTARGET;
c04fee9e 3795 STRLEN len;
a0d0e21e 3796 char *tmps;
c04fee9e 3797 bool copy = FALSE;
a0d0e21e 3798
c04fee9e 3799 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3800 TAINT_PROPER("rmdir");
3801#ifdef HAS_RMDIR
c04fee9e 3802 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3803#else
c04fee9e 3804 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3805#endif
c04fee9e
JH		 3806 if (copy)
3807 Safefree(tmps);
a0d0e21e
LW		 3808 RETURN;
3809}
3810
3811/* Directory calls. */
3812
3813PP(pp_open_dir)
3814{
a0d0e21e 3815#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3816 dSP;
2d8e6c8d
GS		 3817 STRLEN n_a;
3818 char *dirname = POPpx;
1e2c6ed7
JH		 3819 GV *gv = (GV*)POPs;
3820 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3821
3822 if (!io)
3823 goto nope;
3824
3825 if (IoDIRP(io))
6ad3d225
GS		 3826 PerlDir_close(IoDIRP(io));
3827 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3828 goto nope;
3829
3830 RETPUSHYES;
3831nope:
3832 if (!errno)
5b7ea690 3833 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3834 RETPUSHUNDEF;
3835#else
cea2e8a9 3836 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3837#endif
3838}
3839
3840PP(pp_readdir)
3841{
e8e58922
JH		 3842#if !defined(Direntry_t) || !defined(HAS_READDIR)
3843 DIE(aTHX_ PL_no_dir_func, "readdir");
3844#else
fd8cd3a3 3845#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3846 Direntry_t *readdir (DIR *);
a0d0e21e 3847#endif
e8e58922
JH		 3848 dSP;
3849
3850 SV *sv;
24c2fff4 3851 const I32 gimme = GIMME;
e8e58922 3852 GV *gv = (GV *)POPs;
a0d0e21e 3853 register Direntry_t *dp;
a0d0e21e
LW		 3854 register IO *io = GvIOn(gv);
3855
3856 if (!io || !IoDIRP(io))
3857 goto nope;
3858
e8e58922
JH		 3859 do {
3860 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3861 if (!dp)
3862 break;
a0d0e21e 3863#ifdef DIRNAMLEN
e8e58922 3864 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3865#else
e8e58922 3866 sv = newSVpv(dp->d_name, 0);
fb73857a 3867#endif
3868#ifndef INCOMPLETE_TAINTS
e8e58922
JH		 3869 if (!(IoFLAGS(io) & IOf_UNTAINT))
3870 SvTAINTED_on(sv);
a0d0e21e 3871#endif
e8e58922 3872 XPUSHs(sv_2mortal(sv));
a0d0e21e 3873 }
e8e58922
JH		 3874 while (gimme == G_ARRAY);
3875
3876 if (!dp && gimme != G_ARRAY)
3877 goto nope;
3878
a0d0e21e
LW		 3879 RETURN;
3880
3881nope:
3882 if (!errno)
5b7ea690 3883 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3884 if (GIMME == G_ARRAY)
3885 RETURN;
3886 else
3887 RETPUSHUNDEF;
a0d0e21e
LW		 3888#endif
3889}
3890
3891PP(pp_telldir)
3892{
a0d0e21e 3893#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3894 dSP; dTARGET;
968dcd91
JH		 3895 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3896 /* XXX netbsd still seemed to.
3897 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3898 --JHI 1999-Feb-02 */
3899# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3900 long telldir (DIR *);
dfe9444c 3901# endif
a0d0e21e
LW		 3902 GV *gv = (GV*)POPs;
3903 register IO *io = GvIOn(gv);
3904
3905 if (!io || !IoDIRP(io))
3906 goto nope;
3907
6ad3d225 3908 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3909 RETURN;
3910nope:
3911 if (!errno)
5b7ea690 3912 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3913 RETPUSHUNDEF;
3914#else
cea2e8a9 3915 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3916#endif
3917}
3918
3919PP(pp_seekdir)
3920{
a0d0e21e 3921#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3922 dSP;
a0d0e21e
LW		 3923 long along = POPl;
3924 GV *gv = (GV*)POPs;
3925 register IO *io = GvIOn(gv);
3926
3927 if (!io || !IoDIRP(io))
3928 goto nope;
3929
6ad3d225 3930 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3931
3932 RETPUSHYES;
3933nope:
3934 if (!errno)
5b7ea690 3935 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3936 RETPUSHUNDEF;
3937#else
cea2e8a9 3938 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3939#endif
3940}
3941
3942PP(pp_rewinddir)
3943{
a0d0e21e 3944#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3945 dSP;
a0d0e21e
LW		 3946 GV *gv = (GV*)POPs;
3947 register IO *io = GvIOn(gv);
3948
3949 if (!io || !IoDIRP(io))
3950 goto nope;
3951
6ad3d225 3952 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3953 RETPUSHYES;
3954nope:
3955 if (!errno)
5b7ea690 3956 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3957 RETPUSHUNDEF;
3958#else
cea2e8a9 3959 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3960#endif
3961}
3962
3963PP(pp_closedir)
3964{
a0d0e21e 3965#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3966 dSP;
a0d0e21e
LW		 3967 GV *gv = (GV*)POPs;
3968 register IO *io = GvIOn(gv);
3969
3970 if (!io || !IoDIRP(io))
3971 goto nope;
3972
3973#ifdef VOID_CLOSEDIR
6ad3d225 3974 PerlDir_close(IoDIRP(io));
a0d0e21e 3975#else
6ad3d225 3976 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3977 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3978 goto nope;
748a9306 3979 }
a0d0e21e
LW		 3980#endif
3981 IoDIRP(io) = 0;
3982
3983 RETPUSHYES;
3984nope:
3985 if (!errno)
5b7ea690 3986 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3987 RETPUSHUNDEF;
3988#else
cea2e8a9 3989 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3990#endif
3991}
3992
3993/* Process control. */
3994
3995PP(pp_fork)
3996{
44a8e56a 3997#ifdef HAS_FORK
39644a26 3998 dSP; dTARGET;
761237fe 3999 Pid_t childpid;
a0d0e21e
LW		 4000 GV *tmpgv;
4001
4002 EXTEND(SP, 1);
45bc9206 4003 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4004 childpid = PerlProc_fork();
a0d0e21e
LW		 4005 if (childpid < 0)
4006 RETSETUNDEF;
4007 if (!childpid) {
4008 /*SUPPRESS 560*/
306196c3
MS		 4009 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4010 SvREADONLY_off(GvSV(tmpgv));
146174a9 4011 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4012 SvREADONLY_on(GvSV(tmpgv));
4013 }
5b7ea690
JH		 4014#ifdef THREADS_HAVE_PIDS
4015 PL_ppid = (IV)getppid();
4016#endif
3280af22 4017 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4018 }
4019 PUSHi(childpid);
4020 RETURN;
4021#else
146174a9 4022# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4023 dSP; dTARGET;
146174a9
CB		 4024 Pid_t childpid;
4025
4026 EXTEND(SP, 1);
4027 PERL_FLUSHALL_FOR_CHILD;
4028 childpid = PerlProc_fork();
60fa28ff
GS		 4029 if (childpid == -1)
4030 RETSETUNDEF;
146174a9
CB		 4031 PUSHi(childpid);
4032 RETURN;
4033# else
0322a713 4034 DIE(aTHX_ PL_no_func, "fork");
146174a9 4035# endif
a0d0e21e
LW		 4036#endif
4037}
4038
4039PP(pp_wait)
4040{
301e8125 4041#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4042 dSP; dTARGET;
761237fe 4043 Pid_t childpid;
a0d0e21e 4044 int argflags;
a0d0e21e 4045
5835a535
JH		 4046 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4047 childpid = wait4pid(-1, &argflags, 0);
4048 else {
4049 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4050 errno == EINTR) {
4051 PERL_ASYNC_CHECK();
4052 }
0a0ada86 4053 }
68a29c53
GS		 4054# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4055 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4056 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4057# else
f86702cc 4058 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4059# endif
44a8e56a 4060 XPUSHi(childpid);
a0d0e21e
LW		 4061 RETURN;
4062#else
0322a713 4063 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4064#endif
4065}
4066
4067PP(pp_waitpid)
4068{
301e8125 4069#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4070 dSP; dTARGET;
4a04c497
NC		 4071 Pid_t pid;
4072 Pid_t result;
a0d0e21e
LW		 4073 int optype;
4074 int argflags;
a0d0e21e 4075
a0d0e21e 4076 optype = POPi;
4a04c497 4077 pid = TOPi;
5835a535 4078 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4a04c497 4079 result = wait4pid(pid, &argflags, optype);
5835a535 4080 else {
4a04c497 4081 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
5835a535
JH		 4082 errno == EINTR) {
4083 PERL_ASYNC_CHECK();
4084 }
0a0ada86 4085 }
68a29c53
GS		 4086# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4087 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4a04c497 4088 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4089# else
4a04c497 4090 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4091# endif
4a04c497 4092 SETi(result);
a0d0e21e
LW		 4093 RETURN;
4094#else
0322a713 4095 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4096#endif
4097}
4098
4099PP(pp_system)
4100{
39644a26 4101 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4102 I32 value;
2d8e6c8d 4103 STRLEN n_a;
76ffd3b9 4104 int result;
e7766f89 4105 I32 did_pipes = 0;
a0d0e21e 4106
bbd7eb8a
RD		 4107 if (PL_tainting) {
4108 TAINT_ENV();
4109 while (++MARK <= SP) {
4110 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4111 if (PL_tainted)
bbd7eb8a
RD		 4112 break;
4113 }
4114 MARK = ORIGMARK;
5b7ea690 4115 TAINT_PROPER("system");
a0d0e21e 4116 }
45bc9206 4117 PERL_FLUSHALL_FOR_CHILD;
273b0206 4118#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4119 {
eb160463
GS		 4120 Pid_t childpid;
4121 int pp[2];
4122
4123 if (PerlProc_pipe(pp) >= 0)
4124 did_pipes = 1;
4125 while ((childpid = PerlProc_fork()) == -1) {
4126 if (errno != EAGAIN) {
4127 value = -1;
4128 SP = ORIGMARK;
4129 PUSHi(value);
4130 if (did_pipes) {
4131 PerlLIO_close(pp[0]);
4132 PerlLIO_close(pp[1]);
4133 }
4134 RETURN;
4135 }
4136 sleep(5);
4137 }
4138 if (childpid > 0) {
4139 Sigsave_t ihand,qhand; /* place to save signals during system() */
4140 int status;
4141
4142 if (did_pipes)
4143 PerlLIO_close(pp[1]);
64ca3a65 4144#ifndef PERL_MICRO
eb160463
GS		 4145 rsignal_save(SIGINT, SIG_IGN, &ihand);
4146 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4147#endif
eb160463
GS		 4148 do {
4149 result = wait4pid(childpid, &status, 0);
4150 } while (result == -1 && errno == EINTR);
64ca3a65 4151#ifndef PERL_MICRO
eb160463
GS		 4152 (void)rsignal_restore(SIGINT, &ihand);
4153 (void)rsignal_restore(SIGQUIT, &qhand);
4154#endif
4155 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4156 do_execfree(); /* free any memory child malloced on fork */
4157 SP = ORIGMARK;
4158 if (did_pipes) {
4159 int errkid;
4160 int n = 0, n1;
4161
4162 while (n < sizeof(int)) {
4163 n1 = PerlLIO_read(pp[0],
4164 (void*)(((char*)&errkid)+n),
4165 (sizeof(int)) - n);
4166 if (n1 <= 0)
4167 break;
4168 n += n1;
4169 }
4170 PerlLIO_close(pp[0]);
4171 if (n) { /* Error */
4172 if (n != sizeof(int))
4173 DIE(aTHX_ "panic: kid popen errno read");
4174 errno = errkid; /* Propagate errno from kid */
4175 STATUS_CURRENT = -1;
4176 }
4177 }
4178 PUSHi(STATUS_CURRENT);
4179 RETURN;
4180 }
4181 if (did_pipes) {
4182 PerlLIO_close(pp[0]);
d5a9bfb0 4183#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4184 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4185#endif
eb160463 4186 }
e0a1f643
JH		 4187 if (PL_op->op_flags & OPf_STACKED) {
4188 SV *really = *++MARK;
4189 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4190 }
4191 else if (SP - MARK != 1)
4192 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4193 else {
4194 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4195 }
4196 PerlProc__exit(-1);
d5a9bfb0 4197 }
c3293030 4198#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4199 PL_statusvalue = 0;
4200 result = 0;
911d147d 4201 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4202 SV *really = *++MARK;
18729d3e 4203# if defined(WIN32) || defined(OS2)
54725af6
GS		 4204 value = (I32)do_aspawn(really, MARK, SP);
4205# else
c5be433b 4206 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4207# endif
a0d0e21e 4208 }
54725af6 4209 else if (SP - MARK != 1) {
18729d3e 4210# if defined(WIN32) || defined(OS2)
54725af6
GS		 4211 value = (I32)do_aspawn(Nullsv, MARK, SP);
4212# else
c5be433b 4213 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4214# endif
4215 }
a0d0e21e 4216 else {
c5be433b 4217 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4218 }
922b1888
GS		 4219 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4220 result = 1;
f86702cc 4221 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4222 do_execfree();
4223 SP = ORIGMARK;
922b1888 4224 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4225#endif /* !FORK or VMS */
4226 RETURN;
4227}
4228
4229PP(pp_exec)
4230{
39644a26 4231 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4232 I32 value;
2d8e6c8d 4233 STRLEN n_a;
a0d0e21e 4234
bbd7eb8a
RD		 4235 if (PL_tainting) {
4236 TAINT_ENV();
4237 while (++MARK <= SP) {
4238 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4239 if (PL_tainted)
bbd7eb8a
RD		 4240 break;
4241 }
4242 MARK = ORIGMARK;
5b7ea690 4243 TAINT_PROPER("exec");
bbd7eb8a 4244 }
45bc9206 4245 PERL_FLUSHALL_FOR_CHILD;
533c011a 4246 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4247 SV *really = *++MARK;
4248 value = (I32)do_aexec(really, MARK, SP);
4249 }
4250 else if (SP - MARK != 1)
4251#ifdef VMS
4252 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4253#else
092bebab
JH		 4254# ifdef __OPEN_VM
4255 {
c5be433b 4256 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4257 value = 0;
4258 }
4259# else
a0d0e21e 4260 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4261# endif
a0d0e21e
LW		 4262#endif
4263 else {
a0d0e21e 4264#ifdef VMS
2d8e6c8d 4265 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4266#else
092bebab 4267# ifdef __OPEN_VM
c5be433b 4268 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4269 value = 0;
4270# else
2d8e6c8d 4271 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4272# endif
a0d0e21e
LW		 4273#endif
4274 }
146174a9 4275
a0d0e21e
LW		 4276 SP = ORIGMARK;
4277 PUSHi(value);
4278 RETURN;
4279}
4280
4281PP(pp_kill)
4282{
9cad6237 4283#ifdef HAS_KILL
39644a26 4284 dSP; dMARK; dTARGET;
a0d0e21e 4285 I32 value;
533c011a 4286 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4287 SP = MARK;
4288 PUSHi(value);
4289 RETURN;
4290#else
0322a713 4291 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4292#endif
4293}
4294
4295PP(pp_getppid)
4296{
4297#ifdef HAS_GETPPID
39644a26 4298 dSP; dTARGET;
5b7ea690 4299# ifdef THREADS_HAVE_PIDS
b495b599
NC		 4300 if (PL_ppid != 1 && getppid() == 1)
4301 /* maybe the parent process has died. Refresh ppid cache */
4302 PL_ppid = 1;
5b7ea690
JH		 4303 XPUSHi( PL_ppid );
4304# else
a0d0e21e 4305 XPUSHi( getppid() );
5b7ea690 4306# endif
a0d0e21e
LW		 4307 RETURN;
4308#else
cea2e8a9 4309 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4310#endif
4311}
4312
4313PP(pp_getpgrp)
4314{
4315#ifdef HAS_GETPGRP
39644a26 4316 dSP; dTARGET;
d8a83dd3 4317 Pid_t pid;
9853a804 4318 Pid_t pgrp;
a0d0e21e
LW		 4319
4320 if (MAXARG < 1)
4321 pid = 0;
4322 else
4323 pid = SvIVx(POPs);
c3293030 4324#ifdef BSD_GETPGRP
9853a804 4325 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4326#else
146174a9 4327 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4328 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4329 pgrp = getpgrp();
a0d0e21e 4330#endif
9853a804 4331 XPUSHi(pgrp);
a0d0e21e
LW		 4332 RETURN;
4333#else
cea2e8a9 4334 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4335#endif
4336}
4337
4338PP(pp_setpgrp)
4339{
4340#ifdef HAS_SETPGRP
39644a26 4341 dSP; dTARGET;
d8a83dd3
JH		 4342 Pid_t pgrp;
4343 Pid_t pid;
a0d0e21e
LW		 4344 if (MAXARG < 2) {
4345 pgrp = 0;
4346 pid = 0;
4347 }
4348 else {
4349 pgrp = POPi;
4350 pid = TOPi;
4351 }
4352
4353 TAINT_PROPER("setpgrp");
c3293030
IZ		 4354#ifdef BSD_SETPGRP
4355 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4356#else
146174a9
CB		 4357 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4358 || (pid != 0 && pid != PerlProc_getpid()))
4359 {
4360 DIE(aTHX_ "setpgrp can't take arguments");
4361 }
a0d0e21e
LW		 4362 SETi( setpgrp() >= 0 );
4363#endif /* USE_BSDPGRP */
4364 RETURN;
4365#else
cea2e8a9 4366 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4367#endif
4368}
4369
4370PP(pp_getpriority)
4371{
a0d0e21e 4372#ifdef HAS_GETPRIORITY
9cad6237 4373 dSP; dTARGET;
d05c1ba0
JH		 4374 int who = POPi;
4375 int which = TOPi;
a0d0e21e
LW		 4376 SETi( getpriority(which, who) );
4377 RETURN;
4378#else
cea2e8a9 4379 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4380#endif
4381}
4382
4383PP(pp_setpriority)
4384{
a0d0e21e 4385#ifdef HAS_SETPRIORITY
9cad6237 4386 dSP; dTARGET;
d05c1ba0
JH		 4387 int niceval = POPi;
4388 int who = POPi;
4389 int which = TOPi;
a0d0e21e
LW		 4390 TAINT_PROPER("setpriority");
4391 SETi( setpriority(which, who, niceval) >= 0 );
4392 RETURN;
4393#else
cea2e8a9 4394 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4395#endif
4396}
4397
4398/* Time calls. */
4399
4400PP(pp_time)
4401{
39644a26 4402 dSP; dTARGET;
cbdc8872 4403#ifdef BIG_TIME
4404 XPUSHn( time(Null(Time_t*)) );
4405#else
a0d0e21e 4406 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4407#endif
a0d0e21e
LW		 4408 RETURN;
4409}
4410
a0d0e21e
LW		 4411PP(pp_tms)
4412{
9cad6237 4413#ifdef HAS_TIMES
39644a26 4414 dSP;
a0d0e21e 4415 EXTEND(SP, 4);
a0d0e21e 4416#ifndef VMS
3280af22 4417 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4418#else
6b88bc9c 4419 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4420 /* struct tms, though same data */
4421 /* is returned. */
a0d0e21e
LW		 4422#endif
4423
5b7ea690 4424 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4425 if (GIMME == G_ARRAY) {
5b7ea690
JH		 4426 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4427 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4428 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4429 }
4430 RETURN;
9cad6237 4431#else
75a5c1c6
JH		 4432# ifdef PERL_MICRO
4433 dSP;
4434 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4435 EXTEND(SP, 4);
4436 if (GIMME == G_ARRAY) {
4437 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4438 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4439 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4440 }
4441 RETURN;
4442# else
9cad6237 4443 DIE(aTHX_ "times not implemented");
75a5c1c6 4444# endif
55497cff 4445#endif /* HAS_TIMES */
a0d0e21e
LW		 4446}
4447
4448PP(pp_localtime)
4449{
cea2e8a9 4450 return pp_gmtime();
a0d0e21e
LW		 4451}
4452
4453PP(pp_gmtime)
4454{
39644a26 4455 dSP;
a0d0e21e 4456 Time_t when;
a00f3e00
AL		 4457 const struct tm *tmbuf;
4458 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4459 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
a0d0e21e
LW		 4460 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4461
4462 if (MAXARG < 1)
4463 (void)time(&when);
4464 else
cbdc8872 4465#ifdef BIG_TIME
4466 when = (Time_t)SvNVx(POPs);
4467#else
a0d0e21e 4468 when = (Time_t)SvIVx(POPs);
cbdc8872 4469#endif
a0d0e21e 4470
533c011a 4471 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4472 tmbuf = localtime(&when);
4473 else
4474 tmbuf = gmtime(&when);
4475
a0d0e21e 4476 if (GIMME != G_ARRAY) {
46fc3d4c 4477 SV *tsv;
9a5ff6d9
AB		 4478 EXTEND(SP, 1);
4479 EXTEND_MORTAL(1);
a0d0e21e
LW		 4480 if (!tmbuf)
4481 RETPUSHUNDEF;
be28567c 4482 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4483 dayname[tmbuf->tm_wday],
4484 monname[tmbuf->tm_mon],
be28567c
GS		 4485 tmbuf->tm_mday,
4486 tmbuf->tm_hour,
4487 tmbuf->tm_min,
4488 tmbuf->tm_sec,
4489 tmbuf->tm_year + 1900);
46fc3d4c 4490 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4491 }
4492 else if (tmbuf) {
9a5ff6d9
AB		 4493 EXTEND(SP, 9);
4494 EXTEND_MORTAL(9);
4495 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4496 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4497 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4498 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4499 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4500 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4501 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4502 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4503 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4504 }
4505 RETURN;
4506}
4507
4508PP(pp_alarm)
4509{
9cad6237 4510#ifdef HAS_ALARM
39644a26 4511 dSP; dTARGET;
a0d0e21e 4512 int anum;
a0d0e21e
LW		 4513 anum = POPi;
4514 anum = alarm((unsigned int)anum);
4515 EXTEND(SP, 1);
4516 if (anum < 0)
4517 RETPUSHUNDEF;
c6419e06 4518 PUSHi(anum);
a0d0e21e
LW		 4519 RETURN;
4520#else
0322a713 4521 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4522#endif
4523}
4524
4525PP(pp_sleep)
4526{
39644a26 4527 dSP; dTARGET;
a0d0e21e
LW		 4528 I32 duration;
4529 Time_t lasttime;
4530 Time_t when;
4531
4532 (void)time(&lasttime);
4533 if (MAXARG < 1)
76e3520e 4534 PerlProc_pause();
a0d0e21e
LW		 4535 else {
4536 duration = POPi;
76e3520e 4537 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4538 }
4539 (void)time(&when);
4540 XPUSHi(when - lasttime);
4541 RETURN;
4542}
4543
4544/* Shared memory. */
4545
4546PP(pp_shmget)
4547{
cea2e8a9 4548 return pp_semget();
a0d0e21e
LW		 4549}
4550
4551PP(pp_shmctl)
4552{
cea2e8a9 4553 return pp_semctl();
a0d0e21e
LW		 4554}
4555
4556PP(pp_shmread)
4557{
cea2e8a9 4558 return pp_shmwrite();
a0d0e21e
LW		 4559}
4560
4561PP(pp_shmwrite)
4562{
4563#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4564 dSP; dMARK; dTARGET;
533c011a 4565 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4566 SP = MARK;
4567 PUSHi(value);
4568 RETURN;
4569#else
cea2e8a9 4570 return pp_semget();
a0d0e21e
LW		 4571#endif
4572}
4573
4574/* Message passing. */
4575
4576PP(pp_msgget)
4577{
cea2e8a9 4578 return pp_semget();
a0d0e21e
LW		 4579}
4580
4581PP(pp_msgctl)
4582{
cea2e8a9 4583 return pp_semctl();
a0d0e21e
LW		 4584}
4585
4586PP(pp_msgsnd)
4587{
4588#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4589 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4590 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4591 SP = MARK;
4592 PUSHi(value);
4593 RETURN;
4594#else
cea2e8a9 4595 return pp_semget();
a0d0e21e
LW		 4596#endif
4597}
4598
4599PP(pp_msgrcv)
4600{
4601#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4602 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4603 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4604 SP = MARK;
4605 PUSHi(value);
4606 RETURN;
4607#else
cea2e8a9 4608 return pp_semget();
a0d0e21e
LW		 4609#endif
4610}
4611
4612/* Semaphores. */
4613
4614PP(pp_semget)
4615{
4616#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4617 dSP; dMARK; dTARGET;
533c011a 4618 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4619 SP = MARK;
4620 if (anum == -1)
4621 RETPUSHUNDEF;
4622 PUSHi(anum);
4623 RETURN;
4624#else
cea2e8a9 4625 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4626#endif
4627}
4628
4629PP(pp_semctl)
4630{
4631#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4632 dSP; dMARK; dTARGET;
533c011a 4633 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4634 SP = MARK;
4635 if (anum == -1)
4636 RETSETUNDEF;
4637 if (anum != 0) {
4638 PUSHi(anum);
4639 }
4640 else {
8903cb82 4641 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4642 }
4643 RETURN;
4644#else
cea2e8a9 4645 return pp_semget();
a0d0e21e
LW		 4646#endif
4647}
4648
4649PP(pp_semop)
4650{
4651#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4652 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4653 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4654 SP = MARK;
4655 PUSHi(value);
4656 RETURN;
4657#else
cea2e8a9 4658 return pp_semget();
a0d0e21e
LW		 4659#endif
4660}
4661
4662/* Get system info. */
4663
4664PP(pp_ghbyname)
4665{
693762b4 4666#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4667 return pp_ghostent();
a0d0e21e 4668#else
cea2e8a9 4669 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4670#endif
4671}
4672
4673PP(pp_ghbyaddr)
4674{
693762b4 4675#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4676 return pp_ghostent();
a0d0e21e 4677#else
cea2e8a9 4678 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4679#endif
4680}
4681
4682PP(pp_ghostent)
4683{
693762b4 4684#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4685 dSP;
533c011a 4686 I32 which = PL_op->op_type;
a0d0e21e
LW		 4687 register char **elem;
4688 register SV *sv;
dc45a647 4689#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4690 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4691 struct hostent *gethostbyname(Netdb_name_t);
4692 struct hostent *gethostent(void);
a0d0e21e
LW		 4693#endif
4694 struct hostent *hent;
4695 unsigned long len;
2d8e6c8d 4696 STRLEN n_a;
a0d0e21e
LW		 4697
4698 EXTEND(SP, 10);
edd309b7 4699 if (which == OP_GHBYNAME) {
dc45a647 4700#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4701 char* name = POPpbytex;
4702 hent = PerlSock_gethostbyname(name);
dc45a647 4703#else
cea2e8a9 4704 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4705#endif
edd309b7 4706 }
a0d0e21e 4707 else if (which == OP_GHBYADDR) {
dc45a647 4708#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4709 int addrtype = POPi;
748a9306 4710 SV *addrsv = POPs;
a0d0e21e 4711 STRLEN addrlen;
595ae481 4712 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4713
4599a1de 4714 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4715#else
cea2e8a9 4716 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4717#endif
a0d0e21e
LW		 4718 }
4719 else
4720#ifdef HAS_GETHOSTENT
6ad3d225 4721 hent = PerlSock_gethostent();
a0d0e21e 4722#else
cea2e8a9 4723 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4724#endif
4725
4726#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4727 if (!hent) {
4728#ifdef USE_REENTRANT_API
4729# ifdef USE_GETHOSTENT_ERRNO
4730 h_errno = PL_reentrant_buffer->_gethostent_errno;
4731# endif
4732#endif
4733 STATUS_NATIVE_SET(h_errno);
4734 }
a0d0e21e
LW		 4735#endif
4736
4737 if (GIMME != G_ARRAY) {
4738 PUSHs(sv = sv_newmortal());
4739 if (hent) {
4740 if (which == OP_GHBYNAME) {
fd0af264 4741 if (hent->h_addr)
4742 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4743 }
4744 else
4745 sv_setpv(sv, (char*)hent->h_name);
4746 }
4747 RETURN;
4748 }
4749
4750 if (hent) {
3280af22 4751 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4752 sv_setpv(sv, (char*)hent->h_name);
3280af22 4753 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4754 for (elem = hent->h_aliases; elem && *elem; elem++) {
4755 sv_catpv(sv, *elem);
4756 if (elem[1])
4757 sv_catpvn(sv, " ", 1);
4758 }
3280af22 4759 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4760 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4761 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4762 len = hent->h_length;
1e422769 4763 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4764#ifdef h_addr
4765 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4766 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4767 sv_setpvn(sv, *elem, len);
4768 }
4769#else
6b88bc9c 4770 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4771 if (hent->h_addr)
4772 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4773#endif /* h_addr */
4774 }
4775 RETURN;
4776#else
cea2e8a9 4777 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4778#endif
4779}
4780
4781PP(pp_gnbyname)
4782{
693762b4 4783#ifdef HAS_GETNETBYNAME
cea2e8a9 4784 return pp_gnetent();
a0d0e21e 4785#else
cea2e8a9 4786 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4787#endif
4788}
4789
4790PP(pp_gnbyaddr)
4791{
693762b4 4792#ifdef HAS_GETNETBYADDR
cea2e8a9 4793 return pp_gnetent();
a0d0e21e 4794#else
cea2e8a9 4795 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4796#endif
4797}
4798
4799PP(pp_gnetent)
4800{
693762b4 4801#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4802 dSP;
533c011a 4803 I32 which = PL_op->op_type;
a0d0e21e
LW		 4804 register char **elem;
4805 register SV *sv;
dc45a647 4806#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4807 struct netent *getnetbyaddr(Netdb_net_t, int);
4808 struct netent *getnetbyname(Netdb_name_t);
4809 struct netent *getnetent(void);
8ac85365 4810#endif
a0d0e21e 4811 struct netent *nent;
2d8e6c8d 4812 STRLEN n_a;
a0d0e21e 4813
edd309b7 4814 if (which == OP_GNBYNAME){
dc45a647 4815#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4816 char *name = POPpbytex;
4817 nent = PerlSock_getnetbyname(name);
dc45a647 4818#else
cea2e8a9 4819 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4820#endif
edd309b7 4821 }
a0d0e21e 4822 else if (which == OP_GNBYADDR) {
dc45a647 4823#ifdef HAS_GETNETBYADDR
a0d0e21e 4824 int addrtype = POPi;
3bb7c1b4 4825 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4826 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4827#else
cea2e8a9 4828 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4829#endif
a0d0e21e
LW		 4830 }
4831 else
dc45a647 4832#ifdef HAS_GETNETENT
76e3520e 4833 nent = PerlSock_getnetent();
dc45a647 4834#else
cea2e8a9 4835 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4836#endif
a0d0e21e 4837
10bc17b6
JH		 4838#ifdef HOST_NOT_FOUND
4839 if (!nent) {
4840#ifdef USE_REENTRANT_API
4841# ifdef USE_GETNETENT_ERRNO
4842 h_errno = PL_reentrant_buffer->_getnetent_errno;
4843# endif
4844#endif
4845 STATUS_NATIVE_SET(h_errno);
4846 }
4847#endif
4848
a0d0e21e
LW		 4849 EXTEND(SP, 4);
4850 if (GIMME != G_ARRAY) {
4851 PUSHs(sv = sv_newmortal());
4852 if (nent) {
4853 if (which == OP_GNBYNAME)
1e422769 4854 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4855 else
4856 sv_setpv(sv, nent->n_name);
4857 }
4858 RETURN;
4859 }
4860
4861 if (nent) {
3280af22 4862 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4863 sv_setpv(sv, nent->n_name);
3280af22 4864 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4865 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4866 sv_catpv(sv, *elem);
4867 if (elem[1])
4868 sv_catpvn(sv, " ", 1);
4869 }
3280af22 4870 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4871 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4872 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4873 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4874 }
4875
4876 RETURN;
4877#else
cea2e8a9 4878 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4879#endif
4880}
4881
4882PP(pp_gpbyname)
4883{
693762b4 4884#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4885 return pp_gprotoent();
a0d0e21e 4886#else
cea2e8a9 4887 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4888#endif
4889}
4890
4891PP(pp_gpbynumber)
4892{
693762b4 4893#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4894 return pp_gprotoent();
a0d0e21e 4895#else
cea2e8a9 4896 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4897#endif
4898}
4899
4900PP(pp_gprotoent)
4901{
693762b4 4902#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4903 dSP;
533c011a 4904 I32 which = PL_op->op_type;
a0d0e21e 4905 register char **elem;
301e8125 4906 register SV *sv;
dc45a647 4907#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4908 struct protoent *getprotobyname(Netdb_name_t);
4909 struct protoent *getprotobynumber(int);
4910 struct protoent *getprotoent(void);
8ac85365 4911#endif
a0d0e21e 4912 struct protoent *pent;
2d8e6c8d 4913 STRLEN n_a;
a0d0e21e 4914
edd309b7 4915 if (which == OP_GPBYNAME) {
e5c9fcd0 4916#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4917 char* name = POPpbytex;
4918 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4919#else
cea2e8a9 4920 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4921#endif
edd309b7
JH		 4922 }
4923 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4924#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4925 int number = POPi;
4926 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4927#else
edd309b7 4928 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4929#endif
edd309b7 4930 }
a0d0e21e 4931 else
e5c9fcd0 4932#ifdef HAS_GETPROTOENT
6ad3d225 4933 pent = PerlSock_getprotoent();
e5c9fcd0 4934#else
cea2e8a9 4935 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4936#endif
a0d0e21e
LW		 4937
4938 EXTEND(SP, 3);
4939 if (GIMME != G_ARRAY) {
4940 PUSHs(sv = sv_newmortal());
4941 if (pent) {
4942 if (which == OP_GPBYNAME)
1e422769 4943 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4944 else
4945 sv_setpv(sv, pent->p_name);
4946 }
4947 RETURN;
4948 }
4949
4950 if (pent) {
3280af22 4951 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4952 sv_setpv(sv, pent->p_name);
3280af22 4953 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4954 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4955 sv_catpv(sv, *elem);
4956 if (elem[1])
4957 sv_catpvn(sv, " ", 1);
4958 }
3280af22 4959 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4960 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4961 }
4962
4963 RETURN;
4964#else
cea2e8a9 4965 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4966#endif
4967}
4968
4969PP(pp_gsbyname)
4970{
9ec75305 4971#ifdef HAS_GETSERVBYNAME
cea2e8a9 4972 return pp_gservent();
a0d0e21e 4973#else
cea2e8a9 4974 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4975#endif
4976}
4977
4978PP(pp_gsbyport)
4979{
9ec75305 4980#ifdef HAS_GETSERVBYPORT
cea2e8a9 4981 return pp_gservent();
a0d0e21e 4982#else
cea2e8a9 4983 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4984#endif
4985}
4986
4987PP(pp_gservent)
4988{
693762b4 4989#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4990 dSP;
533c011a 4991 I32 which = PL_op->op_type;
a0d0e21e
LW		 4992 register char **elem;
4993 register SV *sv;
dc45a647 4994#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4995 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4996 struct servent *getservbyport(int, Netdb_name_t);
4997 struct servent *getservent(void);
8ac85365 4998#endif
a0d0e21e 4999 struct servent *sent;
2d8e6c8d 5000 STRLEN n_a;
a0d0e21e
LW		 5001
5002 if (which == OP_GSBYNAME) {
dc45a647 5003#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5004 char *proto = POPpbytex;
5005 char *name = POPpbytex;
a0d0e21e
LW		 5006
5007 if (proto && !*proto)
5008 proto = Nullch;
5009
6ad3d225 5010 sent = PerlSock_getservbyname(name, proto);
dc45a647 5011#else
cea2e8a9 5012 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5013#endif
a0d0e21e
LW		 5014 }
5015 else if (which == OP_GSBYPORT) {
dc45a647 5016#ifdef HAS_GETSERVBYPORT
42e0c139 5017 char *proto = POPpbytex;
eb160463 5018 unsigned short port = (unsigned short)POPu;
a0d0e21e 5019
bda19f49
JH		 5020 if (proto && !*proto)
5021 proto = Nullch;
5022
36477c24 5023#ifdef HAS_HTONS
6ad3d225 5024 port = PerlSock_htons(port);
36477c24 5025#endif
6ad3d225 5026 sent = PerlSock_getservbyport(port, proto);
dc45a647 5027#else
cea2e8a9 5028 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5029#endif
a0d0e21e
LW		 5030 }
5031 else
e5c9fcd0 5032#ifdef HAS_GETSERVENT
6ad3d225 5033 sent = PerlSock_getservent();
e5c9fcd0 5034#else
cea2e8a9 5035 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5036#endif
a0d0e21e
LW		 5037
5038 EXTEND(SP, 4);
5039 if (GIMME != G_ARRAY) {
5040 PUSHs(sv = sv_newmortal());
5041 if (sent) {
5042 if (which == OP_GSBYNAME) {
5043#ifdef HAS_NTOHS
6ad3d225 5044 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5045#else
1e422769 5046 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5047#endif
5048 }
5049 else
5050 sv_setpv(sv, sent->s_name);
5051 }
5052 RETURN;
5053 }
5054
5055 if (sent) {
3280af22 5056 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5057 sv_setpv(sv, sent->s_name);
3280af22 5058 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5059 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5060 sv_catpv(sv, *elem);
5061 if (elem[1])
5062 sv_catpvn(sv, " ", 1);
5063 }
3280af22 5064 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5065#ifdef HAS_NTOHS
76e3520e 5066 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5067#else
1e422769 5068 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5069#endif
3280af22 5070 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5071 sv_setpv(sv, sent->s_proto);
5072 }
5073
5074 RETURN;
5075#else
cea2e8a9 5076 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5077#endif
5078}
5079
5080PP(pp_shostent)
5081{
693762b4 5082#ifdef HAS_SETHOSTENT
9cad6237 5083 dSP;
76e3520e 5084 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5085 RETSETYES;
5086#else
cea2e8a9 5087 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5088#endif
5089}
5090
5091PP(pp_snetent)
5092{
693762b4 5093#ifdef HAS_SETNETENT
9cad6237 5094 dSP;
76e3520e 5095 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5096 RETSETYES;
5097#else
cea2e8a9 5098 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5099#endif
5100}
5101
5102PP(pp_sprotoent)
5103{
693762b4 5104#ifdef HAS_SETPROTOENT
9cad6237 5105 dSP;
76e3520e 5106 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5107 RETSETYES;
5108#else
cea2e8a9 5109 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5110#endif
5111}
5112
5113PP(pp_sservent)
5114{
693762b4 5115#ifdef HAS_SETSERVENT
9cad6237 5116 dSP;
76e3520e 5117 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5118 RETSETYES;
5119#else
cea2e8a9 5120 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5121#endif
5122}
5123
5124PP(pp_ehostent)
5125{
693762b4 5126#ifdef HAS_ENDHOSTENT
9cad6237 5127 dSP;
76e3520e 5128 PerlSock_endhostent();
924508f0 5129 EXTEND(SP,1);
a0d0e21e
LW		 5130 RETPUSHYES;
5131#else
cea2e8a9 5132 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5133#endif
5134}
5135
5136PP(pp_enetent)
5137{
693762b4 5138#ifdef HAS_ENDNETENT
9cad6237 5139 dSP;
76e3520e 5140 PerlSock_endnetent();
924508f0 5141 EXTEND(SP,1);
a0d0e21e
LW		 5142 RETPUSHYES;
5143#else
cea2e8a9 5144 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5145#endif
5146}
5147
5148PP(pp_eprotoent)
5149{
693762b4 5150#ifdef HAS_ENDPROTOENT
9cad6237 5151 dSP;
76e3520e 5152 PerlSock_endprotoent();
924508f0 5153 EXTEND(SP,1);
a0d0e21e
LW		 5154 RETPUSHYES;
5155#else
cea2e8a9 5156 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5157#endif
5158}
5159
5160PP(pp_eservent)
5161{
693762b4 5162#ifdef HAS_ENDSERVENT
9cad6237 5163 dSP;
76e3520e 5164 PerlSock_endservent();
924508f0 5165 EXTEND(SP,1);
a0d0e21e
LW		 5166 RETPUSHYES;
5167#else
cea2e8a9 5168 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5169#endif
5170}
5171
5172PP(pp_gpwnam)
5173{
5174#ifdef HAS_PASSWD
cea2e8a9 5175 return pp_gpwent();
a0d0e21e 5176#else
cea2e8a9 5177 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5178#endif
5179}
5180
5181PP(pp_gpwuid)
5182{
5183#ifdef HAS_PASSWD
cea2e8a9 5184 return pp_gpwent();
a0d0e21e 5185#else
cea2e8a9 5186 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5187#endif
5188}
5189
5190PP(pp_gpwent)
5191{
0994c4d0 5192#ifdef HAS_PASSWD
9cad6237 5193 dSP;
533c011a 5194 I32 which = PL_op->op_type;
a0d0e21e 5195 register SV *sv;
2d8e6c8d 5196 STRLEN n_a;
e3aefe8d 5197 struct passwd *pwent = NULL;
301e8125 5198 /*
bcf53261
JH		 5199 * We currently support only the SysV getsp* shadow password interface.
5200 * The interface is declared in <shadow.h> and often one needs to link
5201 * with -lsecurity or some such.
5202 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5203 * (and SCO?)
5204 *
5205 * AIX getpwnam() is clever enough to return the encrypted password
5206 * only if the caller (euid?) is root.
5207 *
ee87c6cb 5208 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5209 * seem to contain more than one interface for accessing the shadow
5210 * password databases, possibly for compatibility reasons.
3813c136 5211 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5212 * are much more complicated, but also very similar to each other.
5213 *
5214 * <sys/types.h>
5215 * <sys/security.h>
5216 * <prot.h>
5217 * struct pr_passwd *getprpw*();
5218 * The password is in
3813c136
JH		 5219 * char getprpw*(...).ufld.fd_encrypt[]
5220 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5221 *
5222 * <sys/types.h>
5223 * <sys/security.h>
5224 * <prot.h>
5225 * struct es_passwd *getespw*();
5226 * The password is in
5227 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5228 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5229 *
ee87c6cb
JH		 5230 * <userpw.h> (AIX)
5231 * struct userpw *getuserpw();
5232 * The password is in
5233 * char *(getuserpw(...)).spw_upw_passwd
5234 * (but the de facto standard getpwnam() should work okay)
5235 *
3813c136 5236 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5237 *
5238 * In HP-UX for getprpw*() the manual page claims that one should include
5239 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5240 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5241 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5242 *
5243 * Note that <sys/security.h> is already probed for, but currently
5244 * it is only included in special cases.
301e8125 5245 *
bcf53261
JH		 5246 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5247 * be preferred interface, even though also the getprpw*() interface
5248 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5249 * One also needs to call set_auth_parameters() in main() before
5250 * doing anything else, whether one is using getespw*() or getprpw*().
5251 *
5252 * Note that accessing the shadow databases can be magnitudes
5253 * slower than accessing the standard databases.
bcf53261
JH		 5254 *
5255 * --jhi
5256 */
a0d0e21e 5257
e67108bc
JH		 5258# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5259 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5260 * the pw_comment is left uninitialized. */
5261 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5262# endif
5263
e3aefe8d
JH		 5264 switch (which) {
5265 case OP_GPWNAM:
edd309b7
JH		 5266 {
5267 char* name = POPpbytex;
5268 pwent = getpwnam(name);
5269 }
5270 break;
e3aefe8d 5271 case OP_GPWUID:
edd309b7
JH		 5272 {
5273 Uid_t uid = POPi;
5274 pwent = getpwuid(uid);
5275 }
e3aefe8d
JH		 5276 break;
5277 case OP_GPWENT:
1883634f 5278# ifdef HAS_GETPWENT
e3aefe8d 5279 pwent = getpwent();
faea9016
IRC		 5280#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5281 if (pwent) pwent = getpwnam(pwent->pw_name);
5282#endif
1883634f 5283# else
a45d1c96 5284 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5285# endif
e3aefe8d
JH		 5286 break;
5287 }
8c0bfa08 5288
a0d0e21e
LW		 5289 EXTEND(SP, 10);
5290 if (GIMME != G_ARRAY) {
5291 PUSHs(sv = sv_newmortal());
5292 if (pwent) {
5293 if (which == OP_GPWNAM)
1883634f 5294# if Uid_t_sign <= 0
1e422769 5295 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5296# else
23dcd6c8 5297 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5298# endif
a0d0e21e
LW		 5299 else
5300 sv_setpv(sv, pwent->pw_name);
5301 }
5302 RETURN;
5303 }
5304
5305 if (pwent) {
3280af22 5306 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5307 sv_setpv(sv, pwent->pw_name);
6ee623d5 5308
3280af22 5309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5310 SvPOK_off(sv);
5311 /* If we have getspnam(), we try to dig up the shadow
5312 * password. If we are underprivileged, the shadow
5313 * interface will set the errno to EACCES or similar,
5314 * and return a null pointer. If this happens, we will
5315 * use the dummy password (usually "*" or "x") from the
5316 * standard password database.
5317 *
5318 * In theory we could skip the shadow call completely
5319 * if euid != 0 but in practice we cannot know which
5320 * security measures are guarding the shadow databases
5321 * on a random platform.
5322 *
5323 * Resist the urge to use additional shadow interfaces.
5324 * Divert the urge to writing an extension instead.
5325 *
5326 * --jhi */
ee87c6cb
JH		 5327 /* Some AIX setups falsely(?) detect some getspnam(), which
5328 * has a different API than the Solaris/IRIX one. */
5329# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5330 {
5331 struct spwd *spwent;
5332 int saverrno; /* Save and restore errno so that
5333 * underprivileged attempts seem
5334 * to have never made the unsccessful
5335 * attempt to retrieve the shadow password. */
5336
5337 saverrno = errno;
5338 spwent = getspnam(pwent->pw_name);
5339 errno = saverrno;
5340 if (spwent && spwent->sp_pwdp)
5341 sv_setpv(sv, spwent->sp_pwdp);
5342 }
f1066039 5343# endif
e020c87d 5344# ifdef PWPASSWD
3813c136
JH		 5345 if (!SvPOK(sv)) /* Use the standard password, then. */
5346 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5347# endif
3813c136 5348
1883634f 5349# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5350 /* passwd is tainted because user himself can diddle with it.
5351 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5352 SvTAINTED_on(sv);
1883634f 5353# endif
6ee623d5 5354
3280af22 5355 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5356# if Uid_t_sign <= 0
1e422769 5357 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5358# else
23dcd6c8 5359 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5360# endif
6ee623d5 5361
3280af22 5362 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5363# if Uid_t_sign <= 0
1e422769 5364 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5365# else
23dcd6c8 5366 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5367# endif
3813c136
JH		 5368 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5369 * because of the poor interface of the Perl getpw*(),
5370 * not because there's some standard/convention saying so.
5371 * A better interface would have been to return a hash,
5372 * but we are accursed by our history, alas. --jhi. */
3280af22 5373 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5374# ifdef PWCHANGE
1e422769 5375 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5376# else
1883634f
JH		 5377# ifdef PWQUOTA
5378 sv_setiv(sv, (IV)pwent->pw_quota);
5379# else
a1757be1 5380# ifdef PWAGE
a0d0e21e 5381 sv_setpv(sv, pwent->pw_age);
a1757be1 5382# endif
6ee623d5
GS		 5383# endif
5384# endif
6ee623d5 5385
3813c136
JH		 5386 /* pw_class and pw_comment are mutually exclusive--.
5387 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5388 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5389# ifdef PWCLASS
a0d0e21e 5390 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5391# else
5392# ifdef PWCOMMENT
a0d0e21e 5393 sv_setpv(sv, pwent->pw_comment);
1883634f 5394# endif
6ee623d5 5395# endif
6ee623d5 5396
3280af22 5397 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5398# ifdef PWGECOS
a0d0e21e 5399 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5400# endif
5401# ifndef INCOMPLETE_TAINTS
d2719217 5402 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5403 SvTAINTED_on(sv);
1883634f 5404# endif
6ee623d5 5405
3280af22 5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5407 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5408
3280af22 5409 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5410 sv_setpv(sv, pwent->pw_shell);
1883634f 5411# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5412 /* pw_shell is tainted because user himself can diddle with it. */
5413 SvTAINTED_on(sv);
1883634f 5414# endif
6ee623d5 5415
1883634f 5416# ifdef PWEXPIRE
6b88bc9c 5417 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5418 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5419# endif
a0d0e21e
LW		 5420 }
5421 RETURN;
5422#else
cea2e8a9 5423 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5424#endif
5425}
5426
5427PP(pp_spwent)
5428{
d493b042 5429#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5430 dSP;
a0d0e21e
LW		 5431 setpwent();
5432 RETPUSHYES;
5433#else
cea2e8a9 5434 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5435#endif
5436}
5437
5438PP(pp_epwent)
5439{
28e8609d 5440#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5441 dSP;
a0d0e21e
LW		 5442 endpwent();
5443 RETPUSHYES;
5444#else
cea2e8a9 5445 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5446#endif
5447}
5448
5449PP(pp_ggrnam)
5450{
5451#ifdef HAS_GROUP
cea2e8a9 5452 return pp_ggrent();
a0d0e21e 5453#else
cea2e8a9 5454 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5455#endif
5456}
5457
5458PP(pp_ggrgid)
5459{
5460#ifdef HAS_GROUP
cea2e8a9 5461 return pp_ggrent();
a0d0e21e 5462#else
cea2e8a9 5463 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5464#endif
5465}
5466
5467PP(pp_ggrent)
5468{
0994c4d0 5469#ifdef HAS_GROUP
9cad6237 5470 dSP;
533c011a 5471 I32 which = PL_op->op_type;
a0d0e21e
LW		 5472 register char **elem;
5473 register SV *sv;
5474 struct group *grent;
2d8e6c8d 5475 STRLEN n_a;
a0d0e21e 5476
edd309b7
JH		 5477 if (which == OP_GGRNAM) {
5478 char* name = POPpbytex;
5479 grent = (struct group *)getgrnam(name);
5480 }
5481 else if (which == OP_GGRGID) {
5482 Gid_t gid = POPi;
5483 grent = (struct group *)getgrgid(gid);
5484 }
a0d0e21e 5485 else
0994c4d0 5486#ifdef HAS_GETGRENT
a0d0e21e 5487 grent = (struct group *)getgrent();
0994c4d0
JH		 5488#else
5489 DIE(aTHX_ PL_no_func, "getgrent");
5490#endif
a0d0e21e
LW		 5491
5492 EXTEND(SP, 4);
5493 if (GIMME != G_ARRAY) {
5494 PUSHs(sv = sv_newmortal());
5495 if (grent) {
5496 if (which == OP_GGRNAM)
1e422769 5497 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5498 else
5499 sv_setpv(sv, grent->gr_name);
5500 }
5501 RETURN;
5502 }
5503
5504 if (grent) {
3280af22 5505 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5506 sv_setpv(sv, grent->gr_name);
28e8609d 5507
3280af22 5508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5509#ifdef GRPASSWD
a0d0e21e 5510 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5511#endif
5512
3280af22 5513 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5514 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5515
5b56e7c5 5516#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5517 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5518 /* In UNICOS/mk (_CRAYMPP) the multithreading
5519 * versions (getgrnam_r, getgrgid_r)
5520 * seem to return an illegal pointer
5521 * as the group members list, gr_mem.
5522 * getgrent() doesn't even have a _r version
5523 * but the gr_mem is poisonous anyway.
5524 * So yes, you cannot get the list of group
5525 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5526 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5527 sv_catpv(sv, *elem);
5528 if (elem[1])
5529 sv_catpvn(sv, " ", 1);
5530 }
3d7e8424 5531#endif
a0d0e21e
LW		 5532 }
5533
5534 RETURN;
5535#else
cea2e8a9 5536 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5537#endif
5538}
5539
5540PP(pp_sgrent)
5541{
28e8609d 5542#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5543 dSP;
a0d0e21e
LW		 5544 setgrent();
5545 RETPUSHYES;
5546#else
cea2e8a9 5547 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5548#endif
5549}
5550
5551PP(pp_egrent)
5552{
28e8609d 5553#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5554 dSP;
a0d0e21e
LW		 5555 endgrent();
5556 RETPUSHYES;
5557#else
cea2e8a9 5558 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5559#endif
5560}
5561
5562PP(pp_getlogin)
5563{
a0d0e21e 5564#ifdef HAS_GETLOGIN
9cad6237 5565 dSP; dTARGET;
a0d0e21e
LW		 5566 char *tmps;
5567 EXTEND(SP, 1);
76e3520e 5568 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5569 RETPUSHUNDEF;
5570 PUSHp(tmps, strlen(tmps));
5571 RETURN;
5572#else
cea2e8a9 5573 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5574#endif
5575}
5576
5577/* Miscellaneous. */
5578
5579PP(pp_syscall)
5580{
d2719217 5581#ifdef HAS_SYSCALL
39644a26 5582 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5583 register I32 items = SP - MARK;
5584 unsigned long a[20];
5585 register I32 i = 0;
5586 I32 retval = -1;
2d8e6c8d 5587 STRLEN n_a;
a0d0e21e 5588
3280af22 5589 if (PL_tainting) {
a0d0e21e 5590 while (++MARK <= SP) {
bbce6d69 5591 if (SvTAINTED(*MARK)) {
5592 TAINT;
5593 break;
5594 }
a0d0e21e
LW		 5595 }
5596 MARK = ORIGMARK;
5597 TAINT_PROPER("syscall");
5598 }
5599
5600 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5601 * or where sizeof(long) != sizeof(char*). But such machines will
5602 * not likely have syscall implemented either, so who cares?
5603 */
5604 while (++MARK <= SP) {
5605 if (SvNIOK(*MARK) || !i)
5606 a[i++] = SvIV(*MARK);
3280af22 5607 else if (*MARK == &PL_sv_undef)
748a9306 5608 a[i++] = 0;
301e8125 5609 else
2d8e6c8d 5610 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5611 if (i > 15)
5612 break;
5613 }
5614 switch (items) {
5615 default:
cea2e8a9 5616 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5617 case 0:
cea2e8a9 5618 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5619 case 1:
5620 retval = syscall(a[0]);
5621 break;
5622 case 2:
5623 retval = syscall(a[0],a[1]);
5624 break;
5625 case 3:
5626 retval = syscall(a[0],a[1],a[2]);
5627 break;
5628 case 4:
5629 retval = syscall(a[0],a[1],a[2],a[3]);
5630 break;
5631 case 5:
5632 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5633 break;
5634 case 6:
5635 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5636 break;
5637 case 7:
5638 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5639 break;
5640 case 8:
5641 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5642 break;
5643#ifdef atarist
5644 case 9:
5645 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5646 break;
5647 case 10:
5648 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5649 break;
5650 case 11:
5651 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5652 a[10]);
5653 break;
5654 case 12:
5655 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5656 a[10],a[11]);
5657 break;
5658 case 13:
5659 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5660 a[10],a[11],a[12]);
5661 break;
5662 case 14:
5663 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5664 a[10],a[11],a[12],a[13]);
5665 break;
5666#endif /* atarist */
5667 }
5668 SP = ORIGMARK;
5669 PUSHi(retval);
5670 RETURN;
5671#else
cea2e8a9 5672 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5673#endif
5674}
5675
ff68c719 5676#ifdef FCNTL_EMULATE_FLOCK
301e8125 5677
ff68c719 5678/* XXX Emulate flock() with fcntl().
5679 What's really needed is a good file locking module.
5680*/
5681
cea2e8a9
GS		 5682static int
5683fcntl_emulate_flock(int fd, int operation)
ff68c719 5684{
5685 struct flock flock;
301e8125 5686
ff68c719 5687 switch (operation & ~LOCK_NB) {
5688 case LOCK_SH:
5689 flock.l_type = F_RDLCK;
5690 break;
5691 case LOCK_EX:
5692 flock.l_type = F_WRLCK;
5693 break;
5694 case LOCK_UN:
5695 flock.l_type = F_UNLCK;
5696 break;
5697 default:
5698 errno = EINVAL;
5699 return -1;
5700 }
5701 flock.l_whence = SEEK_SET;
d9b3e12d 5702 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5703
ff68c719 5704 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5705}
5706
5707#endif /* FCNTL_EMULATE_FLOCK */
5708
5709#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5710
5711/* XXX Emulate flock() with lockf(). This is just to increase
5712 portability of scripts. The calls are not completely
5713 interchangeable. What's really needed is a good file
5714 locking module.
5715*/
5716
76c32331 5717/* The lockf() constants might have been defined in <unistd.h>.
5718 Unfortunately, <unistd.h> causes troubles on some mixed
5719 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5720
5721 Further, the lockf() constants aren't POSIX, so they might not be
5722 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5723 just stick in the SVID values and be done with it. Sigh.
5724*/
5725
5726# ifndef F_ULOCK
5727# define F_ULOCK 0 /* Unlock a previously locked region */
5728# endif
5729# ifndef F_LOCK
5730# define F_LOCK 1 /* Lock a region for exclusive use */
5731# endif
5732# ifndef F_TLOCK
5733# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5734# endif
5735# ifndef F_TEST
5736# define F_TEST 3 /* Test a region for other processes locks */
5737# endif
5738
cea2e8a9
GS		 5739static int
5740lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5741{
5742 int i;
84902520
TB		 5743 int save_errno;
5744 Off_t pos;
5745
5746 /* flock locks entire file so for lockf we need to do the same */
5747 save_errno = errno;
6ad3d225 5748 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5749 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5750 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5751 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5752 errno = save_errno;
5753
16d20bd9
AD		 5754 switch (operation) {
5755
5756 /* LOCK_SH - get a shared lock */
5757 case LOCK_SH:
5758 /* LOCK_EX - get an exclusive lock */
5759 case LOCK_EX:
5760 i = lockf (fd, F_LOCK, 0);
5761 break;
5762
5763 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5764 case LOCK_SH|LOCK_NB:
5765 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5766 case LOCK_EX|LOCK_NB:
5767 i = lockf (fd, F_TLOCK, 0);
5768 if (i == -1)
5769 if ((errno == EAGAIN) || (errno == EACCES))
5770 errno = EWOULDBLOCK;
5771 break;
5772
ff68c719 5773 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5774 case LOCK_UN:
ff68c719 5775 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5776 i = lockf (fd, F_ULOCK, 0);
5777 break;
5778
5779 /* Default - can't decipher operation */
5780 default:
5781 i = -1;
5782 errno = EINVAL;
5783 break;
5784 }
84902520
TB		 5785
5786 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5787 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5788
16d20bd9
AD		 5789 return (i);
5790}
ff68c719 5791
5792#endif /* LOCKF_EMULATE_FLOCK */
583439ab
NC		 5793
5794/*
5795 * Local variables:
5796 * c-indentation-style: bsd
5797 * c-basic-offset: 4
5798 * indent-tabs-mode: t
5799 * End:
5800 *
d8294a4d
NC		 5801 * ex: set ts=8 sts=4 sw=4 noet:
5802 */
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