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[perl5.git] / pp_sys.c
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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;
54310121 318 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) {
364 SvLEN_set(sv, SvCUR(sv)+1);
365 Renew(SvPVX(sv), SvLEN(sv), char);
366 }
aa689395 367 SvTAINTED_on(sv);
a0d0e21e
LW		 368 }
369 }
6ad3d225 370 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 371 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 372 }
373 else {
f86702cc 374 STATUS_NATIVE_SET(-1);
54310121 375 if (gimme == G_SCALAR)
a0d0e21e
LW		 376 RETPUSHUNDEF;
377 }
378
379 RETURN;
380}
381
382PP(pp_glob)
383{
384 OP *result;
f5284f61
IZ		 385 tryAMAGICunTARGET(iter, -1);
386
71686f12
GS		 387 /* Note that we only ever get here if File::Glob fails to load
388 * without at the same time croaking, for some reason, or if
389 * perl was built with PERL_EXTERNAL_GLOB */
390
a0d0e21e 391 ENTER;
a0d0e21e 392
c90c0ff4 393#ifndef VMS
3280af22 394 if (PL_tainting) {
7bac28a0 395 /*
396 * The external globbing program may use things we can't control,
397 * so for security reasons we must assume the worst.
398 */
399 TAINT;
22c35a8c 400 taint_proper(PL_no_security, "glob");
7bac28a0 401 }
c90c0ff4 402#endif /* !VMS */
7bac28a0 403
3280af22
NIS		 404 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
405 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 406
3280af22 407 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 408 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 409#ifndef DOSISH
410#ifndef CSH
6b88bc9c 411 *SvPVX(PL_rs) = '\n';
a0d0e21e 412#endif /* !CSH */
55497cff 413#endif /* !DOSISH */
c07a80fd 414
a0d0e21e
LW		 415 result = do_readline();
416 LEAVE;
417 return result;
418}
419
a0d0e21e
LW		 420PP(pp_rcatline)
421{
146174a9 422 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 423 return do_readline();
424}
425
426PP(pp_warn)
427{
39644a26 428 dSP; dMARK;
06bf62c7 429 SV *tmpsv;
c05e0e2f 430 const char *tmps;
06bf62c7 431 STRLEN len;
a0d0e21e
LW		 432 if (SP - MARK != 1) {
433 dTARGET;
3280af22 434 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 435 tmpsv = TARG;
a0d0e21e
LW		 436 SP = MARK + 1;
437 }
438 else {
06bf62c7 439 tmpsv = TOPs;
a0d0e21e 440 }
06bf62c7 441 tmps = SvPV(tmpsv, len);
5e8f8cda 442 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 443 SV *error = ERRSV;
444 (void)SvUPGRADE(error, SVt_PV);
445 if (SvPOK(error) && SvCUR(error))
446 sv_catpv(error, "\t...caught");
06bf62c7
GS		 447 tmpsv = error;
448 tmps = SvPV(tmpsv, len);
a0d0e21e 449 }
06bf62c7
GS		 450 if (!tmps || !len)
451 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
452
cb50131a 453 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 454 RETSETYES;
455}
456
457PP(pp_die)
458{
39644a26 459 dSP; dMARK;
c05e0e2f 460 const char *tmps;
06bf62c7
GS		 461 SV *tmpsv;
462 STRLEN len;
463 bool multiarg = 0;
96e176bf
CL		 464#ifdef VMS
465 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
466#endif
a0d0e21e
LW		 467 if (SP - MARK != 1) {
468 dTARGET;
3280af22 469 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 470 tmpsv = TARG;
471 tmps = SvPV(tmpsv, len);
472 multiarg = 1;
a0d0e21e
LW		 473 SP = MARK + 1;
474 }
475 else {
4e6ea2c3 476 tmpsv = TOPs;
5b7ea690 477 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 478 }
06bf62c7 479 if (!tmps || !len) {
4e6ea2c3
GS		 480 SV *error = ERRSV;
481 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 482 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
483 if (!multiarg)
4e6ea2c3 484 SvSetSV(error,tmpsv);
06bf62c7 485 else if (sv_isobject(error)) {
05423cc9
GS		 486 HV *stash = SvSTASH(SvRV(error));
487 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
488 if (gv) {
146174a9 489 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 490 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 491 EXTEND(SP, 3);
492 PUSHMARK(SP);
493 PUSHs(error);
494 PUSHs(file);
495 PUSHs(line);
496 PUTBACK;
864dbfa3
GS		 497 call_sv((SV*)GvCV(gv),
498 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 499 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 500 }
501 }
9982c483 502 DIE_NULL;
4e6ea2c3
GS		 503 }
504 else {
505 if (SvPOK(error) && SvCUR(error))
506 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 507 tmpsv = error;
508 tmps = SvPV(tmpsv, len);
4e6ea2c3 509 }
a0d0e21e 510 }
06bf62c7
GS		 511 if (!tmps || !len)
512 tmpsv = sv_2mortal(newSVpvn("Died", 4));
513
cb50131a 514 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 515}
516
517/* I/O. */
518
519PP(pp_open)
520{
39644a26 521 dSP;
a567e93b
NIS		 522 dMARK; dORIGMARK;
523 dTARGET;
a0d0e21e
LW		 524 GV *gv;
525 SV *sv;
5b468f54 526 IO *io;
a0d0e21e
LW		 527 char *tmps;
528 STRLEN len;
4592e6ca 529 MAGIC *mg;
a567e93b 530 bool ok;
a0d0e21e 531
a567e93b 532 gv = (GV *)*++MARK;
5f05dabc 533 if (!isGV(gv))
cea2e8a9 534 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 535 if ((io = GvIOp(gv)))
36477c24 536 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 537
5b468f54 538 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 539 /* Method's args are same as ours ... */
540 /* ... except handle is replaced by the object */
5b468f54 541 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 542 PUSHMARK(MARK);
4592e6ca
NIS		 543 PUTBACK;
544 ENTER;
864dbfa3 545 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 546 LEAVE;
547 SPAGAIN;
548 RETURN;
549 }
550
a567e93b
NIS		 551 if (MARK < SP) {
552 sv = *++MARK;
553 }
554 else {
555 sv = GvSV(gv);
556 }
557
a0d0e21e 558 tmps = SvPV(sv, len);
a567e93b
NIS		 559 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
560 SP = ORIGMARK;
561 if (ok)
3280af22
NIS		 562 PUSHi( (I32)PL_forkprocess );
563 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 564 PUSHi(0);
565 else
566 RETPUSHUNDEF;
567 RETURN;
568}
569
570PP(pp_close)
571{
39644a26 572 dSP;
a0d0e21e 573 GV *gv;
5b468f54 574 IO *io;
1d603a67 575 MAGIC *mg;
a0d0e21e
LW		 576
577 if (MAXARG == 0)
3280af22 578 gv = PL_defoutgv;
a0d0e21e
LW		 579 else
580 gv = (GV*)POPs;
1d603a67 581
5b468f54
AMS		 582 if (gv && (io = GvIO(gv))
583 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
584 {
1d603a67 585 PUSHMARK(SP);
5b468f54 586 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 587 PUTBACK;
588 ENTER;
864dbfa3 589 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 590 LEAVE;
591 SPAGAIN;
592 RETURN;
593 }
a0d0e21e 594 EXTEND(SP, 1);
54310121 595 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 596 RETURN;
597}
598
599PP(pp_pipe_op)
600{
a0d0e21e 601#ifdef HAS_PIPE
9cad6237 602 dSP;
a0d0e21e
LW		 603 GV *rgv;
604 GV *wgv;
605 register IO *rstio;
606 register IO *wstio;
607 int fd[2];
608
609 wgv = (GV*)POPs;
610 rgv = (GV*)POPs;
611
612 if (!rgv || !wgv)
613 goto badexit;
614
4633a7c4 615 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 616 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 617 rstio = GvIOn(rgv);
618 wstio = GvIOn(wgv);
619
620 if (IoIFP(rstio))
621 do_close(rgv, FALSE);
622 if (IoIFP(wstio))
623 do_close(wgv, FALSE);
624
6ad3d225 625 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 626 goto badexit;
627
5a560d3a
IZ		 628 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
629 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 630 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 631 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 632 IoTYPE(rstio) = IoTYPE_RDONLY;
633 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 634
635 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 636 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 637 else PerlLIO_close(fd[0]);
760ac839 638 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 639 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 640 goto badexit;
641 }
4771b018
GS		 642#if defined(HAS_FCNTL) && defined(F_SETFD)
643 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
644 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
645#endif
a0d0e21e
LW		 646 RETPUSHYES;
647
648badexit:
649 RETPUSHUNDEF;
650#else
cea2e8a9 651 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 652#endif
653}
654
655PP(pp_fileno)
656{
39644a26 657 dSP; dTARGET;
a0d0e21e
LW		 658 GV *gv;
659 IO *io;
760ac839 660 PerlIO *fp;
4592e6ca
NIS		 661 MAGIC *mg;
662
a0d0e21e
LW		 663 if (MAXARG < 1)
664 RETPUSHUNDEF;
665 gv = (GV*)POPs;
4592e6ca 666
5b468f54
AMS		 667 if (gv && (io = GvIO(gv))
668 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
669 {
4592e6ca 670 PUSHMARK(SP);
5b468f54 671 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 672 PUTBACK;
673 ENTER;
864dbfa3 674 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 675 LEAVE;
676 SPAGAIN;
677 RETURN;
678 }
679
c289d2f7
JH		 680 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
681 /* Can't do this because people seem to do things like
682 defined(fileno($foo)) to check whether $foo is a valid fh.
683 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
684 report_evil_fh(gv, io, PL_op->op_type);
685 */
a0d0e21e 686 RETPUSHUNDEF;
c289d2f7
JH		 687 }
688
760ac839 689 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 690 RETURN;
691}
692
693PP(pp_umask)
694{
39644a26 695 dSP; dTARGET;
d7e492a4 696#ifdef HAS_UMASK
761237fe 697 Mode_t anum;
a0d0e21e 698
a0d0e21e 699 if (MAXARG < 1) {
6ad3d225
GS		 700 anum = PerlLIO_umask(0);
701 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 702 }
703 else
6ad3d225 704 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 705 TAINT_PROPER("umask");
706 XPUSHi(anum);
707#else
eec2d3df
GS		 708 /* Only DIE if trying to restrict permissions on `user' (self).
709 * Otherwise it's harmless and more useful to just return undef
710 * since 'group' and 'other' concepts probably don't exist here. */
711 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 712 DIE(aTHX_ "umask not implemented");
6b88bc9c 713 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 714#endif
715 RETURN;
716}
717
718PP(pp_binmode)
719{
39644a26 720 dSP;
a0d0e21e
LW		 721 GV *gv;
722 IO *io;
760ac839 723 PerlIO *fp;
4592e6ca 724 MAGIC *mg;
16fe6d59 725 SV *discp = Nullsv;
a0d0e21e
LW		 726
727 if (MAXARG < 1)
728 RETPUSHUNDEF;
60382766 729 if (MAXARG > 1) {
16fe6d59 730 discp = POPs;
60382766 731 }
a0d0e21e 732
301e8125 733 gv = (GV*)POPs;
4592e6ca 734
5b468f54
AMS		 735 if (gv && (io = GvIO(gv))
736 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
737 {
4592e6ca 738 PUSHMARK(SP);
5b468f54 739 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 740 if (discp)
741 XPUSHs(discp);
4592e6ca
NIS		 742 PUTBACK;
743 ENTER;
864dbfa3 744 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 745 LEAVE;
746 SPAGAIN;
747 RETURN;
748 }
a0d0e21e
LW		 749
750 EXTEND(SP, 1);
50f846a7 751 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 752 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
753 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 754 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 755 RETPUSHUNDEF;
756 }
a0d0e21e 757
40d98b49 758 PUTBACK;
60382766 759 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 760 (discp) ? SvPV_nolen(discp) : Nullch)) {
406c4b1e
JH		 761 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
762 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
763 mode_from_discipline(discp),
764 (discp) ? SvPV_nolen(discp) : Nullch)) {
765 SPAGAIN;
766 RETPUSHUNDEF;
767 }
768 }
40d98b49 769 SPAGAIN;
a0d0e21e 770 RETPUSHYES;
40d98b49
JH		 771 }
772 else {
773 SPAGAIN;
a0d0e21e 774 RETPUSHUNDEF;
40d98b49 775 }
a0d0e21e
LW		 776}
777
778PP(pp_tie)
779{
39644a26 780 dSP;
e336de0d 781 dMARK;
a0d0e21e
LW		 782 SV *varsv;
783 HV* stash;
784 GV *gv;
a0d0e21e 785 SV *sv;
3280af22 786 I32 markoff = MARK - PL_stack_base;
c05e0e2f 787 const char *methname;
14befaf4 788 int how = PERL_MAGIC_tied;
e336de0d 789 U32 items;
a0d0e21e 790
e336de0d 791 varsv = *++MARK;
6b05c17a
NIS		 792 switch(SvTYPE(varsv)) {
793 case SVt_PVHV:
794 methname = "TIEHASH";
03c6e78a 795 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 796 break;
797 case SVt_PVAV:
798 methname = "TIEARRAY";
799 break;
800 case SVt_PVGV:
7fb37951
AMS		 801#ifdef GV_UNIQUE_CHECK
802 if (GvUNIQUE((GV*)varsv)) {
803 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 804 }
805#endif
6b05c17a 806 methname = "TIEHANDLE";
14befaf4 807 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 808 /* For tied filehandles, we apply tiedscalar magic to the IO
809 slot of the GP rather than the GV itself. AMS 20010812 */
810 if (!GvIOp(varsv))
811 GvIOp(varsv) = newIO();
812 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 813 break;
814 default:
815 methname = "TIESCALAR";
14befaf4 816 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 817 break;
818 }
e336de0d
GS		 819 items = SP - MARK++;
820 if (sv_isobject(*MARK)) {
6b05c17a 821 ENTER;
e788e7d3 822 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 823 PUSHMARK(SP);
eb160463 824 EXTEND(SP,(I32)items);
e336de0d
GS		 825 while (items--)
826 PUSHs(*MARK++);
827 PUTBACK;
864dbfa3 828 call_method(methname, G_SCALAR);
301e8125 829 }
6b05c17a 830 else {
864dbfa3 831 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 832 * perhaps to get different error message ?
833 */
e336de0d 834 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 835 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
c293eb2b
NC		 836 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
837 methname, *MARK);
6b05c17a
NIS		 838 }
839 ENTER;
e788e7d3 840 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 841 PUSHMARK(SP);
eb160463 842 EXTEND(SP,(I32)items);
e336de0d
GS		 843 while (items--)
844 PUSHs(*MARK++);
845 PUTBACK;
864dbfa3 846 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 847 }
a0d0e21e
LW		 848 SPAGAIN;
849
850 sv = TOPs;
d3acc0f7 851 POPSTACK;
a0d0e21e 852 if (sv_isobject(sv)) {
33c27489 853 sv_unmagic(varsv, how);
ae21d580 854 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 855 if (varsv == SvRV(sv) &&
d87ebaca
YST		 856 (SvTYPE(varsv) == SVt_PVAV ||
857 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 858 Perl_croak(aTHX_
859 "Self-ties of arrays and hashes are not supported");
d87ebaca 860 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 861 }
862 LEAVE;
3280af22 863 SP = PL_stack_base + markoff;
a0d0e21e
LW		 864 PUSHs(sv);
865 RETURN;
866}
867
868PP(pp_untie)
869{
39644a26 870 dSP;
5b468f54 871 MAGIC *mg;
33c27489 872 SV *sv = POPs;
14befaf4
DM		 873 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
874 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 875
5b468f54
AMS		 876 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
877 RETPUSHYES;
878
d87861d8
PP		 879 if ((mg = SvTIED_mg(sv, how))) {
880 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 881 GV *gv;
882 CV *cv = NULL;
fa2b88e0
JS		 883 if (obj) {
884 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
885 isGV(gv) && (cv = GvCV(gv))) {
886 PUSHMARK(SP);
887 XPUSHs(SvTIED_obj((SV*)gv, mg));
888 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
889 PUTBACK;
890 ENTER;
891 call_sv((SV *)cv, G_VOID);
892 LEAVE;
893 SPAGAIN;
894 }
895 else if (ckWARN(WARN_UNTIE)) {
896 if (mg && SvREFCNT(obj) > 1)
9014280d 897 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 898 "untie attempted while %"UVuf" inner references still exist",
899 (UV)SvREFCNT(obj) - 1 ) ;
900 }
cbdc8872 901 }
902 }
06d028cb 903 sv_unmagic(sv, how) ;
55497cff 904 RETPUSHYES;
a0d0e21e
LW		 905}
906
c07a80fd 907PP(pp_tied)
908{
39644a26 909 dSP;
5b468f54 910 MAGIC *mg;
33c27489 911 SV *sv = POPs;
14befaf4
DM		 912 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
913 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 914
915 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
916 RETPUSHUNDEF;
c07a80fd 917
155aba94 918 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 919 SV *osv = SvTIED_obj(sv, mg);
920 if (osv == mg->mg_obj)
921 osv = sv_mortalcopy(osv);
922 PUSHs(osv);
923 RETURN;
c07a80fd 924 }
c07a80fd 925 RETPUSHUNDEF;
926}
927
a0d0e21e
LW		 928PP(pp_dbmopen)
929{
39644a26 930 dSP;
a0d0e21e
LW		 931 HV *hv;
932 dPOPPOPssrl;
933 HV* stash;
934 GV *gv;
a0d0e21e
LW		 935 SV *sv;
936
937 hv = (HV*)POPs;
938
3280af22 939 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 940 sv_setpv(sv, "AnyDBM_File");
941 stash = gv_stashsv(sv, FALSE);
8ebc5c01 942 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 943 PUTBACK;
864dbfa3 944 require_pv("AnyDBM_File.pm");
a0d0e21e 945 SPAGAIN;
8ebc5c01 946 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 947 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 948 }
949
57d3b86d 950 ENTER;
924508f0 951 PUSHMARK(SP);
6b05c17a 952
924508f0 953 EXTEND(SP, 5);
a0d0e21e
LW		 954 PUSHs(sv);
955 PUSHs(left);
956 if (SvIV(right))
b448e4fe 957 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 958 else
b448e4fe 959 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 960 PUSHs(right);
57d3b86d 961 PUTBACK;
864dbfa3 962 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 963 SPAGAIN;
964
965 if (!sv_isobject(TOPs)) {
924508f0
GS		 966 SP--;
967 PUSHMARK(SP);
a0d0e21e
LW		 968 PUSHs(sv);
969 PUSHs(left);
b448e4fe 970 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 971 PUSHs(right);
a0d0e21e 972 PUTBACK;
864dbfa3 973 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 974 SPAGAIN;
975 }
976
6b05c17a 977 if (sv_isobject(TOPs)) {
14befaf4
DM		 978 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
979 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 980 }
a0d0e21e
LW		 981 LEAVE;
982 RETURN;
983}
984
985PP(pp_dbmclose)
986{
cea2e8a9 987 return pp_untie();
a0d0e21e
LW		 988}
989
990PP(pp_sselect)
991{
a0d0e21e 992#ifdef HAS_SELECT
9cad6237 993 dSP; dTARGET;
a0d0e21e
LW		 994 register I32 i;
995 register I32 j;
996 register char *s;
997 register SV *sv;
65202027 998 NV value;
a0d0e21e
LW		 999 I32 maxlen = 0;
1000 I32 nfound;
1001 struct timeval timebuf;
1002 struct timeval *tbuf = &timebuf;
1003 I32 growsize;
1004 char *fd_sets[4];
2d8e6c8d 1005 STRLEN n_a;
a0d0e21e
LW		 1006#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1007 I32 masksize;
1008 I32 offset;
1009 I32 k;
1010
1011# if BYTEORDER & 0xf0000
1012# define ORDERBYTE (0x88888888 - BYTEORDER)
1013# else
1014# define ORDERBYTE (0x4444 - BYTEORDER)
1015# endif
1016
1017#endif
1018
1019 SP -= 4;
1020 for (i = 1; i <= 3; i++) {
1021 if (!SvPOK(SP[i]))
1022 continue;
1023 j = SvCUR(SP[i]);
1024 if (maxlen < j)
1025 maxlen = j;
1026 }
1027
5ff3f7a4 1028/* little endians can use vecs directly */
e366b469 1029#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1030# ifdef NFDBITS
a0d0e21e 1031
5ff3f7a4
GS		 1032# ifndef NBBY
1033# define NBBY 8
1034# endif
a0d0e21e
LW		 1035
1036 masksize = NFDBITS / NBBY;
5ff3f7a4 1037# else
a0d0e21e 1038 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1039# endif
a0d0e21e
LW		 1040 Zero(&fd_sets[0], 4, char*);
1041#endif
1042
482ba07e
JH		 1043# if SELECT_MIN_BITS == 1
1044 growsize = sizeof(fd_set);
1045# else
1046# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1047# undef SELECT_MIN_BITS
1048# define SELECT_MIN_BITS __FD_SETSIZE
1049# endif
e366b469
PG		 1050 /* If SELECT_MIN_BITS is greater than one we most probably will want
1051 * to align the sizes with SELECT_MIN_BITS/8 because for example
1052 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1053 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1054 * on (sets/tests/clears bits) is 32 bits. */
1055 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1056# endif
1057
a0d0e21e
LW		 1058 sv = SP[4];
1059 if (SvOK(sv)) {
1060 value = SvNV(sv);
1061 if (value < 0.0)
1062 value = 0.0;
1063 timebuf.tv_sec = (long)value;
65202027 1064 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1065 timebuf.tv_usec = (long)(value * 1000000.0);
1066 }
1067 else
1068 tbuf = Null(struct timeval*);
1069
1070 for (i = 1; i <= 3; i++) {
1071 sv = SP[i];
1072 if (!SvOK(sv)) {
1073 fd_sets[i] = 0;
1074 continue;
1075 }
1076 else if (!SvPOK(sv))
2d8e6c8d 1077 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1078 j = SvLEN(sv);
1079 if (j < growsize) {
1080 Sv_Grow(sv, growsize);
a0d0e21e 1081 }
c07a80fd 1082 j = SvCUR(sv);
1083 s = SvPVX(sv) + j;
1084 while (++j <= growsize) {
1085 *s++ = '\0';
1086 }
1087
a0d0e21e
LW		 1088#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1089 s = SvPVX(sv);
1090 New(403, fd_sets[i], growsize, char);
1091 for (offset = 0; offset < growsize; offset += masksize) {
1092 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1093 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1094 }
1095#else
1096 fd_sets[i] = SvPVX(sv);
1097#endif
1098 }
1099
fd4f854d
NC		 1100#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1101 /* Can't make just the (void*) conditional because that would be
1102 * cpp #if within cpp macro, and not all compilers like that. */
1103 nfound = PerlSock_select(
1104 maxlen * 8,
1105 (Select_fd_set_t) fd_sets[1],
1106 (Select_fd_set_t) fd_sets[2],
1107 (Select_fd_set_t) fd_sets[3],
1108 (void*) tbuf); /* Workaround for compiler bug. */
1109#else
6ad3d225 1110 nfound = PerlSock_select(
a0d0e21e
LW		 1111 maxlen * 8,
1112 (Select_fd_set_t) fd_sets[1],
1113 (Select_fd_set_t) fd_sets[2],
1114 (Select_fd_set_t) fd_sets[3],
1115 tbuf);
fd4f854d 1116#endif
a0d0e21e
LW		 1117 for (i = 1; i <= 3; i++) {
1118 if (fd_sets[i]) {
1119 sv = SP[i];
1120#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1121 s = SvPVX(sv);
1122 for (offset = 0; offset < growsize; offset += masksize) {
1123 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1124 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1125 }
1126 Safefree(fd_sets[i]);
1127#endif
1128 SvSETMAGIC(sv);
1129 }
1130 }
1131
1132 PUSHi(nfound);
1133 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1134 value = (NV)(timebuf.tv_sec) +
1135 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1136 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1137 sv_setnv(sv, value);
1138 }
1139 RETURN;
1140#else
cea2e8a9 1141 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1142#endif
1143}
1144
4633a7c4 1145void
864dbfa3 1146Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1147{
1148 if (gv)
1149 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1150 if (PL_defoutgv)
1151 SvREFCNT_dec(PL_defoutgv);
1152 PL_defoutgv = gv;
4633a7c4
LW		 1153}
1154
a0d0e21e
LW		 1155PP(pp_select)
1156{
39644a26 1157 dSP; dTARGET;
4633a7c4
LW		 1158 GV *newdefout, *egv;
1159 HV *hv;
1160
533c011a 1161 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1162
3280af22 1163 egv = GvEGV(PL_defoutgv);
4633a7c4 1164 if (!egv)
3280af22 1165 egv = PL_defoutgv;
4633a7c4
LW		 1166 hv = GvSTASH(egv);
1167 if (! hv)
3280af22 1168 XPUSHs(&PL_sv_undef);
4633a7c4 1169 else {
cbdc8872 1170 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1171 if (gvp && *gvp == egv) {
f7aaccc2 1172 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1173 XPUSHTARG;
1174 }
1175 else {
1176 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1177 }
4633a7c4
LW		 1178 }
1179
1180 if (newdefout) {
ded8aa31
GS		 1181 if (!GvIO(newdefout))
1182 gv_IOadd(newdefout);
4633a7c4
LW		 1183 setdefout(newdefout);
1184 }
1185
a0d0e21e
LW		 1186 RETURN;
1187}
1188
1189PP(pp_getc)
1190{
39644a26 1191 dSP; dTARGET;
a0d0e21e 1192 GV *gv;
90133b69 1193 IO *io = NULL;
2ae324a7 1194 MAGIC *mg;
a0d0e21e 1195
32da55ab 1196 if (MAXARG == 0)
3280af22 1197 gv = PL_stdingv;
a0d0e21e
LW		 1198 else
1199 gv = (GV*)POPs;
2ae324a7 1200
5b468f54
AMS		 1201 if (gv && (io = GvIO(gv))
1202 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1203 {
54310121 1204 I32 gimme = GIMME_V;
2ae324a7 1205 PUSHMARK(SP);
5b468f54 1206 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1207 PUTBACK;
1208 ENTER;
864dbfa3 1209 call_method("GETC", gimme);
2ae324a7 1210 LEAVE;
1211 SPAGAIN;
54310121 1212 if (gimme == G_SCALAR)
1213 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1214 RETURN;
1215 }
90133b69 1216 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1217 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1218 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1219 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1220 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1221 RETPUSHUNDEF;
90133b69 1222 }
bbce6d69 1223 TAINT;
2a8de9e2 1224 sv_setpvn(TARG, " ", 1);
9bc64814 1225 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1226 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1227 /* Find out how many bytes the char needs */
1228 Size_t len = UTF8SKIP(SvPVX(TARG));
1229 if (len > 1) {
1230 SvGROW(TARG,len+1);
1231 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1232 SvCUR_set(TARG,1+len);
1233 }
1234 SvUTF8_on(TARG);
1235 }
a0d0e21e
LW		 1236 PUSHTARG;
1237 RETURN;
1238}
1239
1240PP(pp_read)
1241{
cea2e8a9 1242 return pp_sysread();
a0d0e21e
LW		 1243}
1244
76e3520e 1245STATIC OP *
cea2e8a9 1246S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1247{
c09156bb 1248 register PERL_CONTEXT *cx;
54310121 1249 I32 gimme = GIMME_V;
a0d0e21e
LW		 1250
1251 ENTER;
1252 SAVETMPS;
1253
1254 push_return(retop);
146174a9 1255 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1256 PUSHFORMAT(cx);
9755d405 1257 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1258
4633a7c4 1259 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1260 return CvSTART(cv);
1261}
1262
1263PP(pp_enterwrite)
1264{
39644a26 1265 dSP;
a0d0e21e
LW		 1266 register GV *gv;
1267 register IO *io;
1268 GV *fgv;
1269 CV *cv;
1270
1271 if (MAXARG == 0)
3280af22 1272 gv = PL_defoutgv;
a0d0e21e
LW		 1273 else {
1274 gv = (GV*)POPs;
1275 if (!gv)
3280af22 1276 gv = PL_defoutgv;
a0d0e21e
LW		 1277 }
1278 EXTEND(SP, 1);
1279 io = GvIO(gv);
1280 if (!io) {
1281 RETPUSHNO;
1282 }
1283 if (IoFMT_GV(io))
1284 fgv = IoFMT_GV(io);
1285 else
1286 fgv = gv;
1287
1288 cv = GvFORM(fgv);
a0d0e21e 1289 if (!cv) {
2dd78f96 1290 char *name = NULL;
a0d0e21e 1291 if (fgv) {
748a9306 1292 SV *tmpsv = sv_newmortal();
43693395 1293 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1294 name = SvPV_nolen(tmpsv);
a0d0e21e 1295 }
2dd78f96
JH		 1296 if (name && *name)
1297 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1298 DIE(aTHX_ "Not a format reference");
a0d0e21e 1299 }
44a8e56a 1300 if (CvCLONE(cv))
1301 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1302
44a8e56a 1303 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1304 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1305}
1306
1307PP(pp_leavewrite)
1308{
39644a26 1309 dSP;
a0d0e21e
LW		 1310 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1311 register IO *io = GvIOp(gv);
760ac839
LW		 1312 PerlIO *ofp = IoOFP(io);
1313 PerlIO *fp;
a0d0e21e
LW		 1314 SV **newsp;
1315 I32 gimme;
c09156bb 1316 register PERL_CONTEXT *cx;
a0d0e21e 1317
760ac839 1318 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1319 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1320 if (!io || !ofp)
1321 goto forget_top;
3280af22
NIS		 1322 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1323 PL_formtarget != PL_toptarget)
a0d0e21e 1324 {
4633a7c4
LW		 1325 GV *fgv;
1326 CV *cv;
a0d0e21e
LW		 1327 if (!IoTOP_GV(io)) {
1328 GV *topgv;
46fc3d4c 1329 SV *topname;
a0d0e21e
LW		 1330
1331 if (!IoTOP_NAME(io)) {
1332 if (!IoFMT_NAME(io))
1333 IoFMT_NAME(io) = savepv(GvNAME(gv));
6a1959a6 1334 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
46fc3d4c 1335 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1336 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1337 !gv_fetchpv("top",FALSE,SVt_PVFM))
04851bb3 1338 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e
LW		 1339 else
1340 IoTOP_NAME(io) = savepv("top");
1341 }
1342 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1343 if (!topgv || !GvFORM(topgv)) {
922661e1 1344 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1345 goto forget_top;
1346 }
1347 IoTOP_GV(io) = topgv;
1348 }
748a9306
LW		 1349 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1350 I32 lines = IoLINES_LEFT(io);
3280af22 1351 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1352 if (lines <= 0) /* Yow, header didn't even fit!!! */
1353 goto forget_top;
748a9306
LW		 1354 while (lines-- > 0) {
1355 s = strchr(s, '\n');
1356 if (!s)
1357 break;
1358 s++;
1359 }
1360 if (s) {
d75029d0
NIS		 1361 STRLEN save = SvCUR(PL_formtarget);
1362 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1363 do_print(PL_formtarget, ofp);
1364 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1365 sv_chop(PL_formtarget, s);
1366 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1367 }
1368 }
a0d0e21e 1369 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1370 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1371 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1372 IoPAGE(io)++;
3280af22 1373 PL_formtarget = PL_toptarget;
748a9306 1374 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1375 fgv = IoTOP_GV(io);
1376 if (!fgv)
cea2e8a9 1377 DIE(aTHX_ "bad top format reference");
4633a7c4 1378 cv = GvFORM(fgv);
2dd78f96
JH		 1379 {
1380 char *name = NULL;
1381 if (!cv) {
1382 SV *sv = sv_newmortal();
1383 gv_efullname4(sv, fgv, Nullch, FALSE);
1384 name = SvPV_nolen(sv);
1385 }
1386 if (name && *name)
1387 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1388 /* why no:
1389 else
1390 DIE(aTHX_ "Undefined top format called");
1391 ?*/
4633a7c4 1392 }
44a8e56a 1393 if (CvCLONE(cv))
1394 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1395 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1396 }
1397
1398 forget_top:
3280af22 1399 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1400 POPFORMAT(cx);
1401 LEAVE;
1402
1403 fp = IoOFP(io);
1404 if (!fp) {
599cee73 1405 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1406 if (IoIFP(io))
1407 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1408 else if (ckWARN(WARN_CLOSED))
bc37a18f 1409 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1410 }
3280af22 1411 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1412 }
1413 else {
3280af22 1414 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1415 if (ckWARN(WARN_IO))
9014280d 1416 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1417 }
d75029d0 1418 if (!do_print(PL_formtarget, fp))
3280af22 1419 PUSHs(&PL_sv_no);
a0d0e21e 1420 else {
3280af22
NIS		 1421 FmLINES(PL_formtarget) = 0;
1422 SvCUR_set(PL_formtarget, 0);
1423 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1424 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1425 (void)PerlIO_flush(fp);
3280af22 1426 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1427 }
1428 }
9cbac4c7 1429 /* bad_ofp: */
3280af22 1430 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1431 PUTBACK;
1432 return pop_return();
1433}
1434
1435PP(pp_prtf)
1436{
39644a26 1437 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1438 GV *gv;
1439 IO *io;
760ac839 1440 PerlIO *fp;
26db47c4 1441 SV *sv;
46fc3d4c 1442 MAGIC *mg;
a0d0e21e 1443
533c011a 1444 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1445 gv = (GV*)*++MARK;
1446 else
3280af22 1447 gv = PL_defoutgv;
46fc3d4c 1448
5b468f54
AMS		 1449 if (gv && (io = GvIO(gv))
1450 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1451 {
46fc3d4c 1452 if (MARK == ORIGMARK) {
4352c267 1453 MEXTEND(SP, 1);
46fc3d4c 1454 ++MARK;
1455 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1456 ++SP;
1457 }
1458 PUSHMARK(MARK - 1);
5b468f54 1459 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1460 PUTBACK;
1461 ENTER;
864dbfa3 1462 call_method("PRINTF", G_SCALAR);
46fc3d4c 1463 LEAVE;
1464 SPAGAIN;
1465 MARK = ORIGMARK + 1;
1466 *MARK = *SP;
1467 SP = MARK;
1468 RETURN;
1469 }
1470
26db47c4 1471 sv = NEWSV(0,0);
a0d0e21e 1472 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1473 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1474 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 1475 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1476 goto just_say_no;
1477 }
1478 else if (!(fp = IoOFP(io))) {
599cee73 1479 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1480 if (IoIFP(io))
1481 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1482 else if (ckWARN(WARN_CLOSED))
bc37a18f 1483 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1484 }
5b7ea690 1485 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1486 goto just_say_no;
1487 }
1488 else {
1489 do_sprintf(sv, SP - MARK, MARK + 1);
1490 if (!do_print(sv, fp))
1491 goto just_say_no;
1492
1493 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1494 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1495 goto just_say_no;
1496 }
1497 SvREFCNT_dec(sv);
1498 SP = ORIGMARK;
3280af22 1499 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1500 RETURN;
1501
1502 just_say_no:
1503 SvREFCNT_dec(sv);
1504 SP = ORIGMARK;
3280af22 1505 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1506 RETURN;
1507}
1508
c07a80fd 1509PP(pp_sysopen)
1510{
39644a26 1511 dSP;
c07a80fd 1512 GV *gv;
c07a80fd 1513 SV *sv;
1514 char *tmps;
1515 STRLEN len;
1516 int mode, perm;
1517
1518 if (MAXARG > 3)
1519 perm = POPi;
1520 else
1521 perm = 0666;
1522 mode = POPi;
1523 sv = POPs;
1524 gv = (GV *)POPs;
1525
4592e6ca
NIS		 1526 /* Need TIEHANDLE method ? */
1527
c07a80fd 1528 tmps = SvPV(sv, len);
1529 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1530 IoLINES(GvIOp(gv)) = 0;
3280af22 1531 PUSHs(&PL_sv_yes);
c07a80fd 1532 }
1533 else {
3280af22 1534 PUSHs(&PL_sv_undef);
c07a80fd 1535 }
1536 RETURN;
1537}
1538
a0d0e21e
LW		 1539PP(pp_sysread)
1540{
39644a26 1541 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1542 int offset;
1543 GV *gv;
1544 IO *io;
1545 char *buffer;
5b54f415 1546 SSize_t length;
eb5c063a 1547 SSize_t count;
1e422769 1548 Sock_size_t bufsize;
748a9306 1549 SV *bufsv;
a0d0e21e 1550 STRLEN blen;
2ae324a7 1551 MAGIC *mg;
eb5c063a 1552 int fp_utf8;
2ae92515
NC		 1553 int buffer_utf8;
1554 SV *read_target;
eb5c063a
NIS		 1555 Size_t got = 0;
1556 Size_t wanted;
1d636c13 1557 bool charstart = FALSE;
87330c3c
JH		 1558 STRLEN charskip = 0;
1559 STRLEN skip = 0;
a0d0e21e
LW		 1560
1561 gv = (GV*)*++MARK;
5b468f54
AMS		 1562 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1563 && gv && (io = GvIO(gv))
1564 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1565 {
2ae324a7 1566 SV *sv;
1567
1568 PUSHMARK(MARK-1);
5b468f54 1569 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1570 ENTER;
864dbfa3 1571 call_method("READ", G_SCALAR);
2ae324a7 1572 LEAVE;
1573 SPAGAIN;
1574 sv = POPs;
1575 SP = ORIGMARK;
1576 PUSHs(sv);
1577 RETURN;
1578 }
1579
a0d0e21e
LW		 1580 if (!gv)
1581 goto say_undef;
748a9306 1582 bufsv = *++MARK;
ff68c719 1583 if (! SvOK(bufsv))
1584 sv_setpvn(bufsv, "", 0);
a0d0e21e 1585 length = SvIVx(*++MARK);
748a9306 1586 SETERRNO(0,0);
a0d0e21e
LW		 1587 if (MARK < SP)
1588 offset = SvIVx(*++MARK);
1589 else
1590 offset = 0;
1591 io = GvIO(gv);
b5fe5ca2
SR		 1592 if (!io || !IoIFP(io)) {
1593 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1594 report_evil_fh(gv, io, PL_op->op_type);
1595 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1596 goto say_undef;
b5fe5ca2 1597 }
0064a8a9 1598 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1599 buffer = SvPVutf8_force(bufsv, blen);
cd458e05 1600 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1601 SvUTF8_on(bufsv);
2ae92515 1602 buffer_utf8 = 0;
7d59b7e4
NIS		 1603 }
1604 else {
1605 buffer = SvPV_force(bufsv, blen);
2ae92515 1606 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1607 }
1608 if (length < 0)
1609 DIE(aTHX_ "Negative length");
eb5c063a 1610 wanted = length;
7d59b7e4 1611
d0965105
JH		 1612 charstart = TRUE;
1613 charskip = 0;
87330c3c 1614 skip = 0;
d0965105 1615
a0d0e21e 1616#ifdef HAS_SOCKET
533c011a 1617 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1618 char namebuf[MAXPATHLEN];
17a8c7ba 1619#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1620 bufsize = sizeof (struct sockaddr_in);
1621#else
46fc3d4c 1622 bufsize = sizeof namebuf;
490ab354 1623#endif
abf95952
IZ		 1624#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1625 if (bufsize >= 256)
1626 bufsize = 255;
1627#endif
eb160463 1628 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1629 /* 'offset' means 'flags' here */
eb5c063a 1630 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1631 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1632 if (count < 0)
a0d0e21e 1633 RETPUSHUNDEF;
4107cc59
OF		 1634#ifdef EPOC
1635 /* Bogus return without padding */
1636 bufsize = sizeof (struct sockaddr_in);
1637#endif
eb5c063a 1638 SvCUR_set(bufsv, count);
748a9306
LW		 1639 *SvEND(bufsv) = '\0';
1640 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1641 if (fp_utf8)
1642 SvUTF8_on(bufsv);
748a9306 1643 SvSETMAGIC(bufsv);
aac0dd9a 1644 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1645 if (!(IoFLAGS(io) & IOf_UNTAINT))
1646 SvTAINTED_on(bufsv);
a0d0e21e 1647 SP = ORIGMARK;
46fc3d4c 1648 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1649 PUSHs(TARG);
1650 RETURN;
1651 }
1652#else
911d147d 1653 if (PL_op->op_type == OP_RECV)
cea2e8a9 1654 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1655#endif
eb5c063a
NIS		 1656 if (DO_UTF8(bufsv)) {
1657 /* offset adjust in characters not bytes */
1658 blen = sv_len_utf8(bufsv);
7d59b7e4 1659 }
bbce6d69 1660 if (offset < 0) {
eb160463 1661 if (-offset > (int)blen)
cea2e8a9 1662 DIE(aTHX_ "Offset outside string");
bbce6d69 1663 offset += blen;
1664 }
eb5c063a
NIS		 1665 if (DO_UTF8(bufsv)) {
1666 /* convert offset-as-chars to offset-as-bytes */
765545f3
NC		 1667 if (offset >= (int)blen)
1668 offset += SvCUR(bufsv) - blen;
1669 else
1670 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1671 }
1672 more_bytes:
cd52b7b2 1673 bufsize = SvCUR(bufsv);
2ae92515
NC		 1674 /* Allocating length + offset + 1 isn't perfect in the case of reading
1675 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1676 unduly.
1677 (should be 2 * length + offset + 1, or possibly something longer if
1678 PL_encoding is true) */
eb160463 1679 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1680 if (offset > bufsize) { /* Zero any newly allocated space */
1681 Zero(buffer+bufsize, offset-bufsize, char);
1682 }
eb5c063a 1683 buffer = buffer + offset;
2ae92515
NC		 1684 if (!buffer_utf8) {
1685 read_target = bufsv;
1686 } else {
1687 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1688 concatenate it to the current buffer. */
1689
1690 /* Truncate the existing buffer to the start of where we will be
1691 reading to: */
1692 SvCUR_set(bufsv, offset);
1693
1694 read_target = sv_newmortal();
74d4ec60 1695 (void)SvUPGRADE(read_target, SVt_PV);
39f667bb 1696 buffer = SvGROW(read_target, (STRLEN)(length + 1));
2ae92515 1697 }
eb5c063a 1698
533c011a 1699 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1700#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1701 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1702 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1703 buffer, length, 0);
a7092146
GS		 1704 }
1705 else
1706#endif
1707 {
eb5c063a
NIS		 1708 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1709 buffer, length);
a7092146 1710 }
a0d0e21e
LW		 1711 }
1712 else
1713#ifdef HAS_SOCKET__bad_code_maybe
50952442 1714 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1715 char namebuf[MAXPATHLEN];
490ab354
JH		 1716#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1717 bufsize = sizeof (struct sockaddr_in);
1718#else
46fc3d4c 1719 bufsize = sizeof namebuf;
490ab354 1720#endif
eb5c063a 1721 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1722 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1723 }
1724 else
1725#endif
3b02c43c 1726 {
eb5c063a
NIS		 1727 count = PerlIO_read(IoIFP(io), buffer, length);
1728 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1729 if (count == 0 && PerlIO_error(IoIFP(io)))
1730 count = -1;
3b02c43c 1731 }
eb5c063a 1732 if (count < 0) {
a00b5bd3 1733 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
5681398e 1734 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1735 goto say_undef;
af8c498a 1736 }
2ae92515
NC		 1737 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1738 *SvEND(read_target) = '\0';
1739 (void)SvPOK_only(read_target);
0064a8a9 1740 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1741 /* Look at utf8 we got back and count the characters */
1742 char *bend = buffer + count;
1743 while (buffer < bend) {
d0965105
JH		 1744 if (charstart) {
1745 skip = UTF8SKIP(buffer);
1746 charskip = 0;
1747 }
1748 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1749 /* partial character - try for rest of it */
1750 length = skip - (bend-buffer);
1751 offset = bend - SvPVX(bufsv);
d0965105
JH		 1752 charstart = FALSE;
1753 charskip += count;
eb5c063a
NIS		 1754 goto more_bytes;
1755 }
1756 else {
1757 got++;
1758 buffer += skip;
d0965105
JH		 1759 charstart = TRUE;
1760 charskip = 0;
eb5c063a
NIS		 1761 }
1762 }
1763 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1764 provided amount read (count) was what was requested (length)
1765 */
1766 if (got < wanted && count == length) {
d0965105 1767 length = wanted - got;
eb5c063a
NIS		 1768 offset = bend - SvPVX(bufsv);
1769 goto more_bytes;
1770 }
1771 /* return value is character count */
1772 count = got;
1773 SvUTF8_on(bufsv);
1774 }
2ae92515
NC		 1775 else if (buffer_utf8) {
1776 /* Let svcatsv upgrade the bytes we read in to utf8.
1777 The buffer is a mortal so will be freed soon. */
1778 sv_catsv_nomg(bufsv, read_target);
1779 }
748a9306 1780 SvSETMAGIC(bufsv);
aac0dd9a 1781 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1782 if (!(IoFLAGS(io) & IOf_UNTAINT))
1783 SvTAINTED_on(bufsv);
a0d0e21e 1784 SP = ORIGMARK;
eb5c063a 1785 PUSHi(count);
a0d0e21e
LW		 1786 RETURN;
1787
1788 say_undef:
1789 SP = ORIGMARK;
1790 RETPUSHUNDEF;
1791}
1792
1793PP(pp_syswrite)
1794{
39644a26 1795 dSP;
092bebab
JH		 1796 int items = (SP - PL_stack_base) - TOPMARK;
1797 if (items == 2) {
9f089d78 1798 SV *sv;
092bebab 1799 EXTEND(SP, 1);
9f089d78
SB		 1800 sv = sv_2mortal(newSViv(sv_len(*SP)));
1801 PUSHs(sv);
092bebab
JH		 1802 PUTBACK;
1803 }
cea2e8a9 1804 return pp_send();
a0d0e21e
LW		 1805}
1806
1807PP(pp_send)
1808{
39644a26 1809 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1810 GV *gv;
1811 IO *io;
748a9306 1812 SV *bufsv;
a0d0e21e 1813 char *buffer;
8c99d73e
GS		 1814 Size_t length;
1815 SSize_t retval;
a0d0e21e 1816 STRLEN blen;
1d603a67 1817 MAGIC *mg;
a0d0e21e
LW		 1818
1819 gv = (GV*)*++MARK;
14befaf4 1820 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1821 && gv && (io = GvIO(gv))
1822 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1823 {
1d603a67
GB		 1824 SV *sv;
1825
1826 PUSHMARK(MARK-1);
5b468f54 1827 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1828 ENTER;
864dbfa3 1829 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1830 LEAVE;
1831 SPAGAIN;
1832 sv = POPs;
1833 SP = ORIGMARK;
1834 PUSHs(sv);
1835 RETURN;
1836 }
a0d0e21e
LW		 1837 if (!gv)
1838 goto say_undef;
748a9306 1839 bufsv = *++MARK;
8c99d73e 1840#if Size_t_size > IVSIZE
3c001241 1841 length = (Size_t)SvNVx(*++MARK);
146174a9 1842#else
3c001241 1843 length = (Size_t)SvIVx(*++MARK);
146174a9 1844#endif
3c001241 1845 if ((SSize_t)length < 0)
cea2e8a9 1846 DIE(aTHX_ "Negative length");
748a9306 1847 SETERRNO(0,0);
a0d0e21e
LW		 1848 io = GvIO(gv);
1849 if (!io || !IoIFP(io)) {
8c99d73e 1850 retval = -1;
bc37a18f
RG		 1851 if (ckWARN(WARN_CLOSED))
1852 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1853 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1854 goto say_undef;
1855 }
1856
1857 if (PerlIO_isutf8(IoIFP(io))) {
71410450
NC		 1858 if (!SvUTF8(bufsv)) {
1859 bufsv = sv_2mortal(newSVsv(bufsv));
1860 buffer = sv_2pvutf8(bufsv, &blen);
1861 } else
1862 buffer = SvPV(bufsv, blen);
a0d0e21e 1863 }
7d59b7e4 1864 else {
8f34e12f
JH		 1865 if (DO_UTF8(bufsv)) {
1866 /* Not modifying source SV, so making a temporary copy. */
1867 bufsv = sv_2mortal(newSVsv(bufsv));
1868 sv_utf8_downgrade(bufsv, FALSE);
1869 }
1870 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1871 }
1872
1873 if (PL_op->op_type == OP_SYSWRITE) {
1874 IV offset;
1875 if (DO_UTF8(bufsv)) {
1876 /* length and offset are in chars */
1877 blen = sv_len_utf8(bufsv);
1878 }
bbce6d69 1879 if (MARK < SP) {
a0d0e21e 1880 offset = SvIVx(*++MARK);
bbce6d69 1881 if (offset < 0) {
eb160463 1882 if (-offset > (IV)blen)
cea2e8a9 1883 DIE(aTHX_ "Offset outside string");
bbce6d69 1884 offset += blen;
eb160463 1885 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1886 DIE(aTHX_ "Offset outside string");
bbce6d69 1887 } else
a0d0e21e
LW		 1888 offset = 0;
1889 if (length > blen - offset)
1890 length = blen - offset;
7d59b7e4 1891 if (DO_UTF8(bufsv)) {
c8d31a35 1892 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1893 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1894 }
1895 else {
1896 buffer = buffer+offset;
1897 }
a7092146 1898#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1899 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1900 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1901 buffer, length, 0);
a7092146
GS		 1902 }
1903 else
1904#endif
1905 {
94e4c244 1906 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1907 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1908 buffer, length);
a7092146 1909 }
a0d0e21e
LW		 1910 }
1911#ifdef HAS_SOCKET
1912 else if (SP > MARK) {
1913 char *sockbuf;
1914 STRLEN mlen;
1915 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1916 /* length is really flags */
8c99d73e
GS		 1917 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1918 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1919 }
1920 else
7d59b7e4 1921 /* length is really flags */
8c99d73e 1922 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1923#else
1924 else
cea2e8a9 1925 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1926#endif
8c99d73e 1927 if (retval < 0)
a0d0e21e
LW		 1928 goto say_undef;
1929 SP = ORIGMARK;
f36eea10
JH		 1930 if (DO_UTF8(bufsv))
1931 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1932#if Size_t_size > IVSIZE
1933 PUSHn(retval);
1934#else
1935 PUSHi(retval);
1936#endif
a0d0e21e
LW		 1937 RETURN;
1938
1939 say_undef:
1940 SP = ORIGMARK;
1941 RETPUSHUNDEF;
1942}
1943
1944PP(pp_recv)
1945{
cea2e8a9 1946 return pp_sysread();
a0d0e21e
LW		 1947}
1948
1949PP(pp_eof)
1950{
39644a26 1951 dSP;
a0d0e21e 1952 GV *gv;
5b468f54 1953 IO *io;
4592e6ca 1954 MAGIC *mg;
a0d0e21e 1955
32da55ab 1956 if (MAXARG == 0) {
146174a9
CB		 1957 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1958 IO *io;
ed2c6b9b 1959 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1960 io = GvIO(gv);
1961 if (io && !IoIFP(io)) {
1962 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1963 IoLINES(io) = 0;
1964 IoFLAGS(io) &= ~IOf_START;
0473add9 1965 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1966 sv_setpvn(GvSV(gv), "-", 1);
1967 SvSETMAGIC(GvSV(gv));
1968 }
1969 else if (!nextargv(gv))
1970 RETPUSHYES;
1971 }
1972 }
1973 else
1974 gv = PL_last_in_gv; /* eof */
1975 }
a0d0e21e 1976 else
146174a9 1977 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1978
5b468f54
AMS		 1979 if (gv && (io = GvIO(gv))
1980 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1981 {
4592e6ca 1982 PUSHMARK(SP);
5b468f54 1983 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1984 PUTBACK;
1985 ENTER;
864dbfa3 1986 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1987 LEAVE;
1988 SPAGAIN;
1989 RETURN;
1990 }
1991
54310121 1992 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1993 RETURN;
1994}
1995
1996PP(pp_tell)
1997{
39644a26 1998 dSP; dTARGET;
301e8125 1999 GV *gv;
5b468f54 2000 IO *io;
4592e6ca 2001 MAGIC *mg;
a0d0e21e 2002
32da55ab 2003 if (MAXARG == 0)
3280af22 2004 gv = PL_last_in_gv;
a0d0e21e 2005 else
3280af22 2006 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2007
5b468f54
AMS		 2008 if (gv && (io = GvIO(gv))
2009 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2010 {
4592e6ca 2011 PUSHMARK(SP);
5b468f54 2012 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2013 PUTBACK;
2014 ENTER;
864dbfa3 2015 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2016 LEAVE;
2017 SPAGAIN;
2018 RETURN;
2019 }
2020
146174a9
CB		 2021#if LSEEKSIZE > IVSIZE
2022 PUSHn( do_tell(gv) );
2023#else
a0d0e21e 2024 PUSHi( do_tell(gv) );
146174a9 2025#endif
a0d0e21e
LW		 2026 RETURN;
2027}
2028
2029PP(pp_seek)
2030{
cea2e8a9 2031 return pp_sysseek();
137443ea 2032}
2033
2034PP(pp_sysseek)
2035{
39644a26 2036 dSP;
a0d0e21e 2037 GV *gv;
5b468f54 2038 IO *io;
a0d0e21e 2039 int whence = POPi;
146174a9
CB		 2040#if LSEEKSIZE > IVSIZE
2041 Off_t offset = (Off_t)SvNVx(POPs);
2042#else
d9b3e12d 2043 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2044#endif
4592e6ca 2045 MAGIC *mg;
a0d0e21e 2046
3280af22 2047 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2048
5b468f54
AMS		 2049 if (gv && (io = GvIO(gv))
2050 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2051 {
4592e6ca 2052 PUSHMARK(SP);
5b468f54 2053 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2054#if LSEEKSIZE > IVSIZE
2055 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2056#else
b448e4fe 2057 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2058#endif
b448e4fe 2059 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2060 PUTBACK;
2061 ENTER;
864dbfa3 2062 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2063 LEAVE;
2064 SPAGAIN;
2065 RETURN;
2066 }
2067
533c011a 2068 if (PL_op->op_type == OP_SEEK)
8903cb82 2069 PUSHs(boolSV(do_seek(gv, offset, whence)));
2070 else {
b448e4fe
JH		 2071 Off_t sought = do_sysseek(gv, offset, whence);
2072 if (sought < 0)
146174a9
CB		 2073 PUSHs(&PL_sv_undef);
2074 else {
b448e4fe 2075 SV* sv = sought ?
146174a9 2076#if LSEEKSIZE > IVSIZE
b448e4fe 2077 newSVnv((NV)sought)
146174a9 2078#else
b448e4fe 2079 newSViv(sought)
146174a9
CB		 2080#endif
2081 : newSVpvn(zero_but_true, ZBTLEN);
2082 PUSHs(sv_2mortal(sv));
2083 }
8903cb82 2084 }
a0d0e21e
LW		 2085 RETURN;
2086}
2087
2088PP(pp_truncate)
2089{
39644a26 2090 dSP;
8c99d73e
GS		 2091 /* There seems to be no consensus on the length type of truncate()
2092 * and ftruncate(), both off_t and size_t have supporters. In
2093 * general one would think that when using large files, off_t is
2094 * at least as wide as size_t, so using an off_t should be okay. */
2095 /* XXX Configure probe for the length type of *truncate() needed XXX */
2096 Off_t len;
a0d0e21e 2097
25342a55 2098#if Off_t_size > IVSIZE
8c99d73e
GS		 2099 len = (Off_t)POPn;
2100#else
2101 len = (Off_t)POPi;
2102#endif
2103 /* Checking for length < 0 is problematic as the type might or
301e8125 2104 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2105 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2106 SETERRNO(0,0);
d05c1ba0
JH		 2107 {
2108 STRLEN n_a;
2109 int result = 1;
2110 GV *tmpgv;
fe1d0b35
JH		 2111 IO *io;
2112
d05c1ba0
JH		 2113 if (PL_op->op_flags & OPf_SPECIAL) {
2114 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2115
fe1d0b35
JH		 2116 do_ftruncate_gv:
2117 if (!GvIO(tmpgv))
2118 result = 0;
d05c1ba0 2119 else {
fe1d0b35
JH		 2120 PerlIO *fp;
2121 io = GvIOp(tmpgv);
2122 do_ftruncate_io:
2123 TAINT_PROPER("truncate");
2124 if (!(fp = IoIFP(io))) {
2125 result = 0;
2126 }
2127 else {
2128 PerlIO_flush(fp);
cbdc8872 2129#ifdef HAS_TRUNCATE
fe1d0b35 2130 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2131#else
fe1d0b35 2132 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2133#endif
fe1d0b35
JH		 2134 result = 0;
2135 }
d05c1ba0 2136 }
cbdc8872 2137 }
d05c1ba0
JH		 2138 else {
2139 SV *sv = POPs;
2140 char *name;
72f496dc 2141
d05c1ba0
JH		 2142 if (SvTYPE(sv) == SVt_PVGV) {
2143 tmpgv = (GV*)sv; /* *main::FRED for example */
fe1d0b35 2144 goto do_ftruncate_gv;
d05c1ba0
JH		 2145 }
2146 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2147 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
fe1d0b35
JH		 2148 goto do_ftruncate_gv;
2149 }
2150 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2151 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2152 goto do_ftruncate_io;
d05c1ba0 2153 }
1e422769 2154
d05c1ba0
JH		 2155 name = SvPV(sv, n_a);
2156 TAINT_PROPER("truncate");
cbdc8872 2157#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2158 if (truncate(name, len) < 0)
2159 result = 0;
cbdc8872 2160#else
d05c1ba0
JH		 2161 {
2162 int tmpfd;
2163
2164 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2165 result = 0;
d05c1ba0
JH		 2166 else {
2167 if (my_chsize(tmpfd, len) < 0)
2168 result = 0;
2169 PerlLIO_close(tmpfd);
2170 }
cbdc8872 2171 }
a0d0e21e 2172#endif
d05c1ba0 2173 }
a0d0e21e 2174
d05c1ba0
JH		 2175 if (result)
2176 RETPUSHYES;
2177 if (!errno)
5b7ea690 2178 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2179 RETPUSHUNDEF;
2180 }
a0d0e21e
LW		 2181}
2182
2183PP(pp_fcntl)
2184{
cea2e8a9 2185 return pp_ioctl();
a0d0e21e
LW		 2186}
2187
2188PP(pp_ioctl)
2189{
39644a26 2190 dSP; dTARGET;
748a9306 2191 SV *argsv = POPs;
3bb7c1b4 2192 unsigned int func = POPu;
c05e0e2f 2193 const int optype = PL_op->op_type;
a0d0e21e 2194 char *s;
324aa91a 2195 IV retval;
a0d0e21e 2196 GV *gv = (GV*)POPs;
c289d2f7 2197 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2198
748a9306 2199 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2200 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2201 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2202 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2203 RETPUSHUNDEF;
2204 }
2205
748a9306 2206 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2207 STRLEN len;
324aa91a 2208 STRLEN need;
748a9306 2209 s = SvPV_force(argsv, len);
324aa91a
HF		 2210 need = IOCPARM_LEN(func);
2211 if (len < need) {
2212 s = Sv_Grow(argsv, need + 1);
2213 SvCUR_set(argsv, need);
a0d0e21e
LW		 2214 }
2215
748a9306 2216 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2217 }
2218 else {
748a9306 2219 retval = SvIV(argsv);
c529f79d 2220 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2221 }
2222
2223 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2224
2225 if (optype == OP_IOCTL)
2226#ifdef HAS_IOCTL
76e3520e 2227 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2228#else
cea2e8a9 2229 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2230#endif
2231 else
c214f4ad
WB		 2232#ifndef HAS_FCNTL
2233 DIE(aTHX_ "fcntl is not implemented");
2234#else
55497cff 2235#if defined(OS2) && defined(__EMX__)
760ac839 2236 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2237#else
760ac839 2238 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2239#endif
f7288ffb 2240#endif
a0d0e21e 2241
f7288ffb 2242#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2243 if (SvPOK(argsv)) {
2244 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2245 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2246 OP_NAME(PL_op));
748a9306
LW		 2247 s[SvCUR(argsv)] = 0; /* put our null back */
2248 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2249 }
2250
2251 if (retval == -1)
2252 RETPUSHUNDEF;
2253 if (retval != 0) {
2254 PUSHi(retval);
2255 }
2256 else {
8903cb82 2257 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2258 }
4808266b 2259#endif
c214f4ad 2260 RETURN;
a0d0e21e
LW		 2261}
2262
2263PP(pp_flock)
2264{
9cad6237 2265#ifdef FLOCK
39644a26 2266 dSP; dTARGET;
a0d0e21e
LW		 2267 I32 value;
2268 int argtype;
2269 GV *gv;
bc37a18f 2270 IO *io = NULL;
760ac839 2271 PerlIO *fp;
16d20bd9 2272
a0d0e21e 2273 argtype = POPi;
32da55ab 2274 if (MAXARG == 0)
3280af22 2275 gv = PL_last_in_gv;
a0d0e21e
LW		 2276 else
2277 gv = (GV*)POPs;
bc37a18f
RG		 2278 if (gv && (io = GvIO(gv)))
2279 fp = IoIFP(io);
2280 else {
a0d0e21e 2281 fp = Nullfp;
bc37a18f
RG		 2282 io = NULL;
2283 }
a0d0e21e 2284 if (fp) {
68dc0745 2285 (void)PerlIO_flush(fp);
76e3520e 2286 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2287 }
cb50131a 2288 else {
bc37a18f
RG		 2289 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2290 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2291 value = 0;
5b7ea690 2292 SETERRNO(EBADF,RMS_IFI);
cb50131a 2293 }
a0d0e21e
LW		 2294 PUSHi(value);
2295 RETURN;
2296#else
cea2e8a9 2297 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2298#endif
2299}
2300
2301/* Sockets. */
2302
2303PP(pp_socket)
2304{
a0d0e21e 2305#ifdef HAS_SOCKET
9cad6237 2306 dSP;
a0d0e21e
LW		 2307 GV *gv;
2308 register IO *io;
2309 int protocol = POPi;
2310 int type = POPi;
2311 int domain = POPi;
2312 int fd;
2313
2314 gv = (GV*)POPs;
c289d2f7 2315 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2316
c289d2f7
JH		 2317 if (!gv || !io) {
2318 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2319 report_evil_fh(gv, io, PL_op->op_type);
2320 if (IoIFP(io))
2321 do_close(gv, FALSE);
5b7ea690 2322 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2323 RETPUSHUNDEF;
2324 }
2325
57171420
BS		 2326 if (IoIFP(io))
2327 do_close(gv, FALSE);
2328
a0d0e21e 2329 TAINT_PROPER("socket");
6ad3d225 2330 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2331 if (fd < 0)
2332 RETPUSHUNDEF;
5a560d3a
IZ		 2333 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2334 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2335 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2336 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2337 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2338 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2339 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2340 RETPUSHUNDEF;
2341 }
8d2a6795
GS		 2342#if defined(HAS_FCNTL) && defined(F_SETFD)
2343 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2344#endif
a0d0e21e 2345
d5ff79b3
OF		 2346#ifdef EPOC
2347 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2348#endif
2349
a0d0e21e
LW		 2350 RETPUSHYES;
2351#else
cea2e8a9 2352 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2353#endif
2354}
2355
2356PP(pp_sockpair)
2357{
c95c94b1 2358#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2359 dSP;
a0d0e21e
LW		 2360 GV *gv1;
2361 GV *gv2;
2362 register IO *io1;
2363 register IO *io2;
2364 int protocol = POPi;
2365 int type = POPi;
2366 int domain = POPi;
2367 int fd[2];
2368
2369 gv2 = (GV*)POPs;
2370 gv1 = (GV*)POPs;
c289d2f7
JH		 2371 io1 = gv1 ? GvIOn(gv1) : NULL;
2372 io2 = gv2 ? GvIOn(gv2) : NULL;
2373 if (!gv1 || !gv2 || !io1 || !io2) {
2374 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2375 if (!gv1 || !io1)
2376 report_evil_fh(gv1, io1, PL_op->op_type);
2377 if (!gv2 || !io2)
2378 report_evil_fh(gv1, io2, PL_op->op_type);
2379 }
2380 if (IoIFP(io1))
2381 do_close(gv1, FALSE);
2382 if (IoIFP(io2))
2383 do_close(gv2, FALSE);
a0d0e21e 2384 RETPUSHUNDEF;
c289d2f7 2385 }
a0d0e21e 2386
dc0d0a5f
JH		 2387 if (IoIFP(io1))
2388 do_close(gv1, FALSE);
2389 if (IoIFP(io2))
2390 do_close(gv2, FALSE);
57171420 2391
a0d0e21e 2392 TAINT_PROPER("socketpair");
6ad3d225 2393 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2394 RETPUSHUNDEF;
5a560d3a
IZ		 2395 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2396 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2397 IoTYPE(io1) = IoTYPE_SOCKET;
5a560d3a
IZ		 2398 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2399 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2400 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2401 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2402 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2403 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2404 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2405 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2406 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2407 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2408 RETPUSHUNDEF;
2409 }
8d2a6795
GS		 2410#if defined(HAS_FCNTL) && defined(F_SETFD)
2411 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2412 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2413#endif
a0d0e21e
LW		 2414
2415 RETPUSHYES;
2416#else
cea2e8a9 2417 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2418#endif
2419}
2420
2421PP(pp_bind)
2422{
a0d0e21e 2423#ifdef HAS_SOCKET
9cad6237 2424 dSP;
eec2d3df 2425#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2426 extern void GETPRIVMODE();
2427 extern void GETUSERMODE();
eec2d3df 2428#endif
748a9306 2429 SV *addrsv = POPs;
a0d0e21e
LW		 2430 char *addr;
2431 GV *gv = (GV*)POPs;
2432 register IO *io = GvIOn(gv);
2433 STRLEN len;
eec2d3df
GS		 2434 int bind_ok = 0;
2435#ifdef MPE
2436 int mpeprivmode = 0;
2437#endif
a0d0e21e
LW		 2438
2439 if (!io || !IoIFP(io))
2440 goto nuts;
2441
748a9306 2442 addr = SvPV(addrsv, len);
a0d0e21e 2443 TAINT_PROPER("bind");
eec2d3df
GS		 2444#ifdef MPE /* Deal with MPE bind() peculiarities */
2445 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2446 /* The address *MUST* stupidly be zero. */
2447 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2448 /* PRIV mode is required to bind() to ports < 1024. */
2449 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2450 ((struct sockaddr_in *)addr)->sin_port > 0) {
2451 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2452 mpeprivmode = 1;
2453 }
2454 }
2455#endif /* MPE */
2456 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2457 (struct sockaddr *)addr, len) >= 0)
2458 bind_ok = 1;
2459
2460#ifdef MPE /* Switch back to USER mode */
2461 if (mpeprivmode)
2462 GETUSERMODE();
2463#endif /* MPE */
2464
2465 if (bind_ok)
a0d0e21e
LW		 2466 RETPUSHYES;
2467 else
2468 RETPUSHUNDEF;
2469
2470nuts:
599cee73 2471 if (ckWARN(WARN_CLOSED))
bc37a18f 2472 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2473 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2474 RETPUSHUNDEF;
2475#else
cea2e8a9 2476 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2477#endif
2478}
2479
2480PP(pp_connect)
2481{
a0d0e21e 2482#ifdef HAS_SOCKET
9cad6237 2483 dSP;
748a9306 2484 SV *addrsv = POPs;
a0d0e21e
LW		 2485 char *addr;
2486 GV *gv = (GV*)POPs;
2487 register IO *io = GvIOn(gv);
2488 STRLEN len;
2489
2490 if (!io || !IoIFP(io))
2491 goto nuts;
2492
748a9306 2493 addr = SvPV(addrsv, len);
a0d0e21e 2494 TAINT_PROPER("connect");
6ad3d225 2495 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2496 RETPUSHYES;
2497 else
2498 RETPUSHUNDEF;
2499
2500nuts:
599cee73 2501 if (ckWARN(WARN_CLOSED))
bc37a18f 2502 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2503 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2504 RETPUSHUNDEF;
2505#else
cea2e8a9 2506 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2507#endif
2508}
2509
2510PP(pp_listen)
2511{
a0d0e21e 2512#ifdef HAS_SOCKET
9cad6237 2513 dSP;
a0d0e21e
LW		 2514 int backlog = POPi;
2515 GV *gv = (GV*)POPs;
c289d2f7 2516 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2517
c289d2f7 2518 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2519 goto nuts;
2520
6ad3d225 2521 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2522 RETPUSHYES;
2523 else
2524 RETPUSHUNDEF;
2525
2526nuts:
599cee73 2527 if (ckWARN(WARN_CLOSED))
bc37a18f 2528 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2529 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2530 RETPUSHUNDEF;
2531#else
cea2e8a9 2532 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2533#endif
2534}
2535
2536PP(pp_accept)
2537{
a0d0e21e 2538#ifdef HAS_SOCKET
9cad6237 2539 dSP; dTARGET;
a0d0e21e
LW		 2540 GV *ngv;
2541 GV *ggv;
2542 register IO *nstio;
2543 register IO *gstio;
26776375
JH		 2544 char namebuf[MAXPATHLEN];
2545#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2546 Sock_size_t len = sizeof (struct sockaddr_in);
2547#else
2548 Sock_size_t len = sizeof namebuf;
2549#endif
a0d0e21e
LW		 2550 int fd;
2551
2552 ggv = (GV*)POPs;
2553 ngv = (GV*)POPs;
2554
2555 if (!ngv)
2556 goto badexit;
2557 if (!ggv)
2558 goto nuts;
2559
2560 gstio = GvIO(ggv);
2561 if (!gstio || !IoIFP(gstio))
2562 goto nuts;
2563
2564 nstio = GvIOn(ngv);
26776375 2565 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2566 if (fd < 0)
2567 goto badexit;
a70048fb
AB		 2568 if (IoIFP(nstio))
2569 do_close(ngv, FALSE);
5a560d3a
IZ		 2570 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2571 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2572 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2573 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2574 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2575 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2576 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2577 goto badexit;
2578 }
8d2a6795
GS		 2579#if defined(HAS_FCNTL) && defined(F_SETFD)
2580 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2581#endif
a0d0e21e 2582
ed79a026 2583#ifdef EPOC
26776375 2584 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2585 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2586#endif
bfd7eeef 2587#ifdef __SCO_VERSION__
26776375 2588 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
bfd7eeef 2589#endif
ed79a026 2590
26776375 2591 PUSHp(namebuf, len);
a0d0e21e
LW		 2592 RETURN;
2593
2594nuts:
599cee73 2595 if (ckWARN(WARN_CLOSED))
bc37a18f 2596 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
5b7ea690 2597 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2598
2599badexit:
2600 RETPUSHUNDEF;
2601
2602#else
cea2e8a9 2603 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2604#endif
2605}
2606
2607PP(pp_shutdown)
2608{
a0d0e21e 2609#ifdef HAS_SOCKET
9cad6237 2610 dSP; dTARGET;
a0d0e21e
LW		 2611 int how = POPi;
2612 GV *gv = (GV*)POPs;
2613 register IO *io = GvIOn(gv);
2614
2615 if (!io || !IoIFP(io))
2616 goto nuts;
2617
6ad3d225 2618 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2619 RETURN;
2620
2621nuts:
599cee73 2622 if (ckWARN(WARN_CLOSED))
bc37a18f 2623 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2624 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2625 RETPUSHUNDEF;
2626#else
cea2e8a9 2627 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2628#endif
2629}
2630
2631PP(pp_gsockopt)
2632{
2633#ifdef HAS_SOCKET
cea2e8a9 2634 return pp_ssockopt();
a0d0e21e 2635#else
cea2e8a9 2636 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2637#endif
2638}
2639
2640PP(pp_ssockopt)
2641{
a0d0e21e 2642#ifdef HAS_SOCKET
9cad6237 2643 dSP;
533c011a 2644 int optype = PL_op->op_type;
a0d0e21e
LW		 2645 SV *sv;
2646 int fd;
2647 unsigned int optname;
2648 unsigned int lvl;
2649 GV *gv;
2650 register IO *io;
1e422769 2651 Sock_size_t len;
a0d0e21e
LW		 2652
2653 if (optype == OP_GSOCKOPT)
2654 sv = sv_2mortal(NEWSV(22, 257));
2655 else
2656 sv = POPs;
2657 optname = (unsigned int) POPi;
2658 lvl = (unsigned int) POPi;
2659
2660 gv = (GV*)POPs;
2661 io = GvIOn(gv);
2662 if (!io || !IoIFP(io))
2663 goto nuts;
2664
760ac839 2665 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2666 switch (optype) {
2667 case OP_GSOCKOPT:
748a9306 2668 SvGROW(sv, 257);
a0d0e21e 2669 (void)SvPOK_only(sv);
748a9306
LW		 2670 SvCUR_set(sv,256);
2671 *SvEND(sv) ='\0';
1e422769 2672 len = SvCUR(sv);
6ad3d225 2673 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2674 goto nuts2;
1e422769 2675 SvCUR_set(sv, len);
748a9306 2676 *SvEND(sv) ='\0';
a0d0e21e
LW		 2677 PUSHs(sv);
2678 break;
2679 case OP_SSOCKOPT: {
1e422769 2680 char *buf;
2681 int aint;
2682 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2683 STRLEN l;
2684 buf = SvPV(sv, l);
2685 len = l;
1e422769 2686 }
56ee1660 2687 else {
a0d0e21e
LW		 2688 aint = (int)SvIV(sv);
2689 buf = (char*)&aint;
2690 len = sizeof(int);
2691 }
6ad3d225 2692 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2693 goto nuts2;
3280af22 2694 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2695 }
2696 break;
2697 }
2698 RETURN;
2699
2700nuts:
599cee73 2701 if (ckWARN(WARN_CLOSED))
bc37a18f 2702 report_evil_fh(gv, io, optype);
5b7ea690 2703 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2704nuts2:
2705 RETPUSHUNDEF;
2706
2707#else
cea2e8a9 2708 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2709#endif
2710}
2711
2712PP(pp_getsockname)
2713{
2714#ifdef HAS_SOCKET
cea2e8a9 2715 return pp_getpeername();
a0d0e21e 2716#else
cea2e8a9 2717 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2718#endif
2719}
2720
2721PP(pp_getpeername)
2722{
a0d0e21e 2723#ifdef HAS_SOCKET
9cad6237 2724 dSP;
533c011a 2725 int optype = PL_op->op_type;
a0d0e21e
LW		 2726 SV *sv;
2727 int fd;
2728 GV *gv = (GV*)POPs;
2729 register IO *io = GvIOn(gv);
1e422769 2730 Sock_size_t len;
a0d0e21e
LW		 2731
2732 if (!io || !IoIFP(io))
2733 goto nuts;
2734
2735 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2736 (void)SvPOK_only(sv);
1e422769 2737 len = 256;
2738 SvCUR_set(sv, len);
748a9306 2739 *SvEND(sv) ='\0';
760ac839 2740 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2741 switch (optype) {
2742 case OP_GETSOCKNAME:
6ad3d225 2743 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2744 goto nuts2;
2745 break;
2746 case OP_GETPEERNAME:
6ad3d225 2747 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2748 goto nuts2;
490ab354
JH		 2749#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2750 {
2751 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";
2752 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2753 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2754 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2755 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2756 goto nuts2;
490ab354
JH		 2757 }
2758 }
2759#endif
a0d0e21e
LW		 2760 break;
2761 }
13826f2c
CS		 2762#ifdef BOGUS_GETNAME_RETURN
2763 /* Interactive Unix, getpeername() and getsockname()
2764 does not return valid namelen */
1e422769 2765 if (len == BOGUS_GETNAME_RETURN)
2766 len = sizeof(struct sockaddr);
13826f2c 2767#endif
1e422769 2768 SvCUR_set(sv, len);
748a9306 2769 *SvEND(sv) ='\0';
a0d0e21e
LW		 2770 PUSHs(sv);
2771 RETURN;
2772
2773nuts:
599cee73 2774 if (ckWARN(WARN_CLOSED))
bc37a18f 2775 report_evil_fh(gv, io, optype);
5b7ea690 2776 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2777nuts2:
2778 RETPUSHUNDEF;
2779
2780#else
cea2e8a9 2781 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2782#endif
2783}
2784
2785/* Stat calls. */
2786
2787PP(pp_lstat)
2788{
cea2e8a9 2789 return pp_stat();
a0d0e21e
LW		 2790}
2791
2792PP(pp_stat)
2793{
39644a26 2794 dSP;
2dd78f96 2795 GV *gv;
54310121 2796 I32 gimme;
a0d0e21e 2797 I32 max = 13;
2d8e6c8d 2798 STRLEN n_a;
a0d0e21e 2799
533c011a 2800 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2801 gv = cGVOP_gv;
8a4e5b40 2802 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2803 if (gv != PL_defgv) {
2804 if (ckWARN(WARN_IO))
9014280d 2805 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2806 "lstat() on filehandle %s", GvENAME(gv));
2807 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2808 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2809 }
2810
748a9306 2811 do_fstat:
2dd78f96 2812 if (gv != PL_defgv) {
3280af22 2813 PL_laststype = OP_STAT;
2dd78f96 2814 PL_statgv = gv;
2a8de9e2 2815 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2816 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2817 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2818 }
9ddeeac9 2819 if (PL_laststatval < 0) {
2dd78f96
JH		 2820 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2821 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2822 max = 0;
9ddeeac9 2823 }
a0d0e21e
LW		 2824 }
2825 else {
748a9306
LW		 2826 SV* sv = POPs;
2827 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2828 gv = (GV*)sv;
748a9306
LW		 2829 goto do_fstat;
2830 }
2831 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2832 gv = (GV*)SvRV(sv);
5d3e98de 2833 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2834 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2835 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2836 goto do_fstat;
2837 }
2d8e6c8d 2838 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2839 PL_statgv = Nullgv;
533c011a
NIS		 2840 PL_laststype = PL_op->op_type;
2841 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2842 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2843 else
2d8e6c8d 2844 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2845 if (PL_laststatval < 0) {
2d8e6c8d 2846 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2847 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2848 max = 0;
2849 }
2850 }
2851
54310121 2852 gimme = GIMME_V;
2853 if (gimme != G_ARRAY) {
2854 if (gimme != G_VOID)
2855 XPUSHs(boolSV(max));
2856 RETURN;
a0d0e21e
LW		 2857 }
2858 if (max) {
36477c24 2859 EXTEND(SP, max);
2860 EXTEND_MORTAL(max);
1ff81528
PL		 2861 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2862 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2863 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2864 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2865#if Uid_t_size > IVSIZE
2866 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2867#else
23dcd6c8 2868# if Uid_t_sign <= 0
1ff81528 2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2870# else
2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2872# endif
146174a9 2873#endif
301e8125 2874#if Gid_t_size > IVSIZE
146174a9
CB		 2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2876#else
23dcd6c8 2877# if Gid_t_sign <= 0
1ff81528 2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2879# else
2880 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2881# endif
146174a9 2882#endif
cbdc8872 2883#ifdef USE_STAT_RDEV
1ff81528 2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2885#else
79cb57f6 2886 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2887#endif
146174a9 2888#if Off_t_size > IVSIZE
4f4e7967 2889 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2890#else
1ff81528 2891 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2892#endif
cbdc8872 2893#ifdef BIG_TIME
172ae379
JH		 2894 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2895 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2896 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2897#else
1ff81528
PL		 2898 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2901#endif
a0d0e21e 2902#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2903 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2904 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2905#else
79cb57f6
GS		 2906 PUSHs(sv_2mortal(newSVpvn("", 0)));
2907 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2908#endif
2909 }
2910 RETURN;
2911}
2912
2913PP(pp_ftrread)
2914{
9cad6237 2915 I32 result;
2a3ff820 2916 dSP;
5ff3f7a4 2917#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2918 STRLEN n_a;
bfd7eeef
JH		 2919 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2920 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2921 if (result == 0)
2922 RETPUSHYES;
2923 if (result < 0)
2924 RETPUSHUNDEF;
2925 RETPUSHNO;
22865c03
GS		 2926 }
2927 else
cea2e8a9 2928 result = my_stat();
5ff3f7a4 2929#else
cea2e8a9 2930 result = my_stat();
5ff3f7a4 2931#endif
22865c03 2932 SPAGAIN;
a0d0e21e
LW		 2933 if (result < 0)
2934 RETPUSHUNDEF;
3280af22 2935 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2936 RETPUSHYES;
2937 RETPUSHNO;
2938}
2939
2940PP(pp_ftrwrite)
2941{
9cad6237 2942 I32 result;
2a3ff820 2943 dSP;
5ff3f7a4 2944#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2945 STRLEN n_a;
bfd7eeef
JH		 2946 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2947 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2948 if (result == 0)
2949 RETPUSHYES;
2950 if (result < 0)
2951 RETPUSHUNDEF;
2952 RETPUSHNO;
22865c03
GS		 2953 }
2954 else
cea2e8a9 2955 result = my_stat();
5ff3f7a4 2956#else
cea2e8a9 2957 result = my_stat();
5ff3f7a4 2958#endif
22865c03 2959 SPAGAIN;
a0d0e21e
LW		 2960 if (result < 0)
2961 RETPUSHUNDEF;
3280af22 2962 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2963 RETPUSHYES;
2964 RETPUSHNO;
2965}
2966
2967PP(pp_ftrexec)
2968{
9cad6237 2969 I32 result;
2a3ff820 2970 dSP;
5ff3f7a4 2971#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2972 STRLEN n_a;
bfd7eeef
JH		 2973 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2974 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2975 if (result == 0)
2976 RETPUSHYES;
2977 if (result < 0)
2978 RETPUSHUNDEF;
2979 RETPUSHNO;
22865c03
GS		 2980 }
2981 else
cea2e8a9 2982 result = my_stat();
5ff3f7a4 2983#else
cea2e8a9 2984 result = my_stat();
5ff3f7a4 2985#endif
22865c03 2986 SPAGAIN;
a0d0e21e
LW		 2987 if (result < 0)
2988 RETPUSHUNDEF;
3280af22 2989 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2990 RETPUSHYES;
2991 RETPUSHNO;
2992}
2993
2994PP(pp_fteread)
2995{
9cad6237 2996 I32 result;
2a3ff820 2997 dSP;
5ff3f7a4 2998#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2999 STRLEN n_a;
bfd7eeef
JH		 3000 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3001 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3002 if (result == 0)
3003 RETPUSHYES;
3004 if (result < 0)
3005 RETPUSHUNDEF;
3006 RETPUSHNO;
22865c03
GS		 3007 }
3008 else
cea2e8a9 3009 result = my_stat();
5ff3f7a4 3010#else
cea2e8a9 3011 result = my_stat();
5ff3f7a4 3012#endif
22865c03 3013 SPAGAIN;
a0d0e21e
LW		 3014 if (result < 0)
3015 RETPUSHUNDEF;
3280af22 3016 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3017 RETPUSHYES;
3018 RETPUSHNO;
3019}
3020
3021PP(pp_ftewrite)
3022{
9cad6237 3023 I32 result;
2a3ff820 3024 dSP;
5ff3f7a4 3025#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 3026 STRLEN n_a;
bfd7eeef
JH		 3027 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3028 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3029 if (result == 0)
3030 RETPUSHYES;
3031 if (result < 0)
3032 RETPUSHUNDEF;
3033 RETPUSHNO;
22865c03
GS		 3034 }
3035 else
cea2e8a9 3036 result = my_stat();
5ff3f7a4 3037#else
cea2e8a9 3038 result = my_stat();
5ff3f7a4 3039#endif
22865c03 3040 SPAGAIN;
a0d0e21e
LW		 3041 if (result < 0)
3042 RETPUSHUNDEF;
3280af22 3043 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3044 RETPUSHYES;
3045 RETPUSHNO;
3046}
3047
3048PP(pp_fteexec)
3049{
9cad6237 3050 I32 result;
2a3ff820 3051 dSP;
5ff3f7a4 3052#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 3053 STRLEN n_a;
bfd7eeef
JH		 3054 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3055 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3056 if (result == 0)
3057 RETPUSHYES;
3058 if (result < 0)
3059 RETPUSHUNDEF;
3060 RETPUSHNO;
22865c03
GS		 3061 }
3062 else
cea2e8a9 3063 result = my_stat();
5ff3f7a4 3064#else
cea2e8a9 3065 result = my_stat();
5ff3f7a4 3066#endif
22865c03 3067 SPAGAIN;
a0d0e21e
LW		 3068 if (result < 0)
3069 RETPUSHUNDEF;
3280af22 3070 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3071 RETPUSHYES;
3072 RETPUSHNO;
3073}
3074
3075PP(pp_ftis)
3076{
9cad6237 3077 I32 result = my_stat();
2a3ff820 3078 dSP;
a0d0e21e
LW		 3079 if (result < 0)
3080 RETPUSHUNDEF;
3081 RETPUSHYES;
3082}
3083
3084PP(pp_fteowned)
3085{
cea2e8a9 3086 return pp_ftrowned();
a0d0e21e
LW		 3087}
3088
3089PP(pp_ftrowned)
3090{
9cad6237 3091 I32 result = my_stat();
2a3ff820 3092 dSP;
a0d0e21e
LW		 3093 if (result < 0)
3094 RETPUSHUNDEF;
146174a9
CB		 3095 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3096 PL_euid : PL_uid) )
a0d0e21e
LW		 3097 RETPUSHYES;
3098 RETPUSHNO;
3099}
3100
3101PP(pp_ftzero)
3102{
9cad6237 3103 I32 result = my_stat();
2a3ff820 3104 dSP;
a0d0e21e
LW		 3105 if (result < 0)
3106 RETPUSHUNDEF;
146174a9 3107 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3108 RETPUSHYES;
3109 RETPUSHNO;
3110}
3111
3112PP(pp_ftsize)
3113{
9cad6237 3114 I32 result = my_stat();
2a3ff820 3115 dSP; dTARGET;
a0d0e21e
LW		 3116 if (result < 0)
3117 RETPUSHUNDEF;
146174a9
CB		 3118#if Off_t_size > IVSIZE
3119 PUSHn(PL_statcache.st_size);
3120#else
3280af22 3121 PUSHi(PL_statcache.st_size);
146174a9 3122#endif
a0d0e21e
LW		 3123 RETURN;
3124}
3125
3126PP(pp_ftmtime)
3127{
9cad6237 3128 I32 result = my_stat();
2a3ff820 3129 dSP; dTARGET;
a0d0e21e
LW		 3130 if (result < 0)
3131 RETPUSHUNDEF;
a9dd8465 3132 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3133 RETURN;
3134}
3135
3136PP(pp_ftatime)
3137{
9cad6237 3138 I32 result = my_stat();
2a3ff820 3139 dSP; dTARGET;
a0d0e21e
LW		 3140 if (result < 0)
3141 RETPUSHUNDEF;
a9dd8465 3142 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3143 RETURN;
3144}
3145
3146PP(pp_ftctime)
3147{
9cad6237 3148 I32 result = my_stat();
2a3ff820 3149 dSP; dTARGET;
a0d0e21e
LW		 3150 if (result < 0)
3151 RETPUSHUNDEF;
a9dd8465 3152 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3153 RETURN;
3154}
3155
3156PP(pp_ftsock)
3157{
9cad6237 3158 I32 result = my_stat();
2a3ff820 3159 dSP;
a0d0e21e
LW		 3160 if (result < 0)
3161 RETPUSHUNDEF;
3280af22 3162 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3163 RETPUSHYES;
3164 RETPUSHNO;
3165}
3166
3167PP(pp_ftchr)
3168{
9cad6237 3169 I32 result = my_stat();
2a3ff820 3170 dSP;
a0d0e21e
LW		 3171 if (result < 0)
3172 RETPUSHUNDEF;
3280af22 3173 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3174 RETPUSHYES;
3175 RETPUSHNO;
3176}
3177
3178PP(pp_ftblk)
3179{
9cad6237 3180 I32 result = my_stat();
2a3ff820 3181 dSP;
a0d0e21e
LW		 3182 if (result < 0)
3183 RETPUSHUNDEF;
3280af22 3184 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3185 RETPUSHYES;
3186 RETPUSHNO;
3187}
3188
3189PP(pp_ftfile)
3190{
9cad6237 3191 I32 result = my_stat();
2a3ff820 3192 dSP;
a0d0e21e
LW		 3193 if (result < 0)
3194 RETPUSHUNDEF;
3280af22 3195 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3196 RETPUSHYES;
3197 RETPUSHNO;
3198}
3199
3200PP(pp_ftdir)
3201{
9cad6237 3202 I32 result = my_stat();
2a3ff820 3203 dSP;
a0d0e21e
LW		 3204 if (result < 0)
3205 RETPUSHUNDEF;
3280af22 3206 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3207 RETPUSHYES;
3208 RETPUSHNO;
3209}
3210
3211PP(pp_ftpipe)
3212{
9cad6237 3213 I32 result = my_stat();
2a3ff820 3214 dSP;
a0d0e21e
LW		 3215 if (result < 0)
3216 RETPUSHUNDEF;
3280af22 3217 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3218 RETPUSHYES;
3219 RETPUSHNO;
3220}
3221
3222PP(pp_ftlink)
3223{
9cad6237 3224 I32 result = my_lstat();
2a3ff820 3225 dSP;
a0d0e21e
LW		 3226 if (result < 0)
3227 RETPUSHUNDEF;
3280af22 3228 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3229 RETPUSHYES;
3230 RETPUSHNO;
3231}
3232
3233PP(pp_ftsuid)
3234{
39644a26 3235 dSP;
a0d0e21e 3236#ifdef S_ISUID
cea2e8a9 3237 I32 result = my_stat();
a0d0e21e
LW		 3238 SPAGAIN;
3239 if (result < 0)
3240 RETPUSHUNDEF;
3280af22 3241 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3242 RETPUSHYES;
3243#endif
3244 RETPUSHNO;
3245}
3246
3247PP(pp_ftsgid)
3248{
39644a26 3249 dSP;
a0d0e21e 3250#ifdef S_ISGID
cea2e8a9 3251 I32 result = my_stat();
a0d0e21e
LW		 3252 SPAGAIN;
3253 if (result < 0)
3254 RETPUSHUNDEF;
3280af22 3255 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3256 RETPUSHYES;
3257#endif
3258 RETPUSHNO;
3259}
3260
3261PP(pp_ftsvtx)
3262{
39644a26 3263 dSP;
a0d0e21e 3264#ifdef S_ISVTX
cea2e8a9 3265 I32 result = my_stat();
a0d0e21e
LW		 3266 SPAGAIN;
3267 if (result < 0)
3268 RETPUSHUNDEF;
3280af22 3269 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3270 RETPUSHYES;
3271#endif
3272 RETPUSHNO;
3273}
3274
3275PP(pp_fttty)
3276{
39644a26 3277 dSP;
a0d0e21e
LW		 3278 int fd;
3279 GV *gv;
fb73857a 3280 char *tmps = Nullch;
2d8e6c8d 3281 STRLEN n_a;
fb73857a 3282
533c011a 3283 if (PL_op->op_flags & OPf_REF)
146174a9 3284 gv = cGVOP_gv;
fb73857a 3285 else if (isGV(TOPs))
3286 gv = (GV*)POPs;
3287 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3288 gv = (GV*)SvRV(POPs);
a0d0e21e 3289 else
2d8e6c8d 3290 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3291
a0d0e21e 3292 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3293 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3294 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3295 fd = atoi(tmps);
3296 else
3297 RETPUSHUNDEF;
6ad3d225 3298 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3299 RETPUSHYES;
3300 RETPUSHNO;
3301}
3302
16d20bd9
AD		 3303#if defined(atarist) /* this will work with atariST. Configure will
3304 make guesses for other systems. */
3305# define FILE_base(f) ((f)->_base)
3306# define FILE_ptr(f) ((f)->_ptr)
3307# define FILE_cnt(f) ((f)->_cnt)
3308# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3309#endif
3310
3311PP(pp_fttext)
3312{
39644a26 3313 dSP;
a0d0e21e
LW		 3314 I32 i;
3315 I32 len;
3316 I32 odd = 0;
3317 STDCHAR tbuf[512];
3318 register STDCHAR *s;
3319 register IO *io;
5f05dabc 3320 register SV *sv;
3321 GV *gv;
2d8e6c8d 3322 STRLEN n_a;
146174a9 3323 PerlIO *fp;
a0d0e21e 3324
533c011a 3325 if (PL_op->op_flags & OPf_REF)
146174a9 3326 gv = cGVOP_gv;
5f05dabc 3327 else if (isGV(TOPs))
3328 gv = (GV*)POPs;
3329 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3330 gv = (GV*)SvRV(POPs);
3331 else
3332 gv = Nullgv;
3333
3334 if (gv) {
a0d0e21e 3335 EXTEND(SP, 1);
3280af22
NIS		 3336 if (gv == PL_defgv) {
3337 if (PL_statgv)
3338 io = GvIO(PL_statgv);
a0d0e21e 3339 else {
3280af22 3340 sv = PL_statname;
a0d0e21e
LW		 3341 goto really_filename;
3342 }
3343 }
3344 else {
3280af22
NIS		 3345 PL_statgv = gv;
3346 PL_laststatval = -1;
2a8de9e2 3347 sv_setpvn(PL_statname, "", 0);
3280af22 3348 io = GvIO(PL_statgv);
a0d0e21e
LW		 3349 }
3350 if (io && IoIFP(io)) {
5f05dabc 3351 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3352 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3353 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3354 if (PL_laststatval < 0)
5f05dabc 3355 RETPUSHUNDEF;
9cbac4c7 3356 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3357 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3358 RETPUSHNO;
3359 else
3360 RETPUSHYES;
9cbac4c7 3361 }
a20bf0c3 3362 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3363 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3364 if (i != EOF)
760ac839 3365 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3366 }
a20bf0c3 3367 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3368 RETPUSHYES;
a20bf0c3
JH		 3369 len = PerlIO_get_bufsiz(IoIFP(io));
3370 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3371 /* sfio can have large buffers - limit to 512 */
3372 if (len > 512)
3373 len = 512;
a0d0e21e
LW		 3374 }
3375 else {
2dd78f96 3376 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3377 gv = cGVOP_gv;
2dd78f96 3378 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3379 }
5b7ea690 3380 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3381 RETPUSHUNDEF;
3382 }
3383 }
3384 else {
3385 sv = POPs;
5f05dabc 3386 really_filename:
3280af22 3387 PL_statgv = Nullgv;
5c9aa243 3388 PL_laststype = OP_STAT;
2d8e6c8d 3389 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3390 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
67bae6b3 3391 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3392 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3393 RETPUSHUNDEF;
3394 }
146174a9
CB		 3395 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3396 if (PL_laststatval < 0) {
3397 (void)PerlIO_close(fp);
5f05dabc 3398 RETPUSHUNDEF;
146174a9 3399 }
60382766 3400 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3401 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3402 (void)PerlIO_close(fp);
a0d0e21e 3403 if (len <= 0) {
533c011a 3404 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3405 RETPUSHNO; /* special case NFS directories */
3406 RETPUSHYES; /* null file is anything */
3407 }
3408 s = tbuf;
3409 }
3410
3411 /* now scan s to look for textiness */
4633a7c4 3412 /* XXX ASCII dependent code */
a0d0e21e 3413
146174a9
CB		 3414#if defined(DOSISH) || defined(USEMYBINMODE)
3415 /* ignore trailing ^Z on short files */
3416 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3417 --len;
3418#endif
3419
a0d0e21e
LW		 3420 for (i = 0; i < len; i++, s++) {
3421 if (!*s) { /* null never allowed in text */
3422 odd += len;
3423 break;
3424 }
9d116dd7 3425#ifdef EBCDIC
301e8125 3426 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3427 odd++;
3428#else
146174a9
CB		 3429 else if (*s & 128) {
3430#ifdef USE_LOCALE
2de3dbcc 3431 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3432 continue;
3433#endif
3434 /* utf8 characters don't count as odd */
fd400ab9 3435 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3436 int ulen = UTF8SKIP(s);
3437 if (ulen < len - i) {
3438 int j;
3439 for (j = 1; j < ulen; j++) {
fd400ab9 3440 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3441 goto not_utf8;
3442 }
3443 --ulen; /* loop does extra increment */
3444 s += ulen;
3445 i += ulen;
3446 continue;
3447 }
3448 }
3449 not_utf8:
3450 odd++;
146174a9 3451 }
a0d0e21e
LW		 3452 else if (*s < 32 &&
3453 *s != '\n' && *s != '\r' && *s != '\b' &&
3454 *s != '\t' && *s != '\f' && *s != 27)
3455 odd++;
9d116dd7 3456#endif
a0d0e21e
LW		 3457 }
3458
533c011a 3459 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3460 RETPUSHNO;
3461 else
3462 RETPUSHYES;
3463}
3464
3465PP(pp_ftbinary)
3466{
cea2e8a9 3467 return pp_fttext();
a0d0e21e
LW		 3468}
3469
3470/* File calls. */
3471
3472PP(pp_chdir)
3473{
39644a26 3474 dSP; dTARGET;
a0d0e21e
LW		 3475 char *tmps;
3476 SV **svp;
2d8e6c8d 3477 STRLEN n_a;
a0d0e21e 3478
35ae6b54
MS		 3479 if( MAXARG == 1 )
3480 tmps = POPpx;
3481 else
3482 tmps = 0;
3483
3484 if( !tmps || !*tmps ) {
3485 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3486 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3487#ifdef VMS
35ae6b54 3488 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3489#endif
35ae6b54
MS		 3490 )
3491 {
3492 if( MAXARG == 1 )
9014280d 3493 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3494 tmps = SvPV(*svp, n_a);
3495 }
72f496dc 3496 else {
389ec635 3497 PUSHi(0);
b7ab37f8 3498 TAINT_PROPER("chdir");
389ec635
MS		 3499 RETURN;
3500 }
8ea155d1 3501 }
8ea155d1 3502
a0d0e21e 3503 TAINT_PROPER("chdir");
6ad3d225 3504 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3505#ifdef VMS
3506 /* Clear the DEFAULT element of ENV so we'll get the new value
3507 * in the future. */
6b88bc9c 3508 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3509#endif
a0d0e21e
LW		 3510 RETURN;
3511}
3512
3513PP(pp_chown)
3514{
a0d0e21e 3515#ifdef HAS_CHOWN
76ffd3b9
IZ		 3516 dSP; dMARK; dTARGET;
3517 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3518
a0d0e21e
LW		 3519 SP = MARK;
3520 PUSHi(value);
3521 RETURN;
3522#else
0322a713 3523 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3524#endif
3525}
3526
3527PP(pp_chroot)
3528{
a0d0e21e 3529#ifdef HAS_CHROOT
76ffd3b9 3530 dSP; dTARGET;
2d8e6c8d 3531 STRLEN n_a;
d05c1ba0 3532 char *tmps = POPpx;
a0d0e21e
LW		 3533 TAINT_PROPER("chroot");
3534 PUSHi( chroot(tmps) >= 0 );
3535 RETURN;
3536#else
cea2e8a9 3537 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3538#endif
3539}
3540
3541PP(pp_unlink)
3542{
39644a26 3543 dSP; dMARK; dTARGET;
a0d0e21e 3544 I32 value;
533c011a 3545 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3546 SP = MARK;
3547 PUSHi(value);
3548 RETURN;
3549}
3550
3551PP(pp_chmod)
3552{
39644a26 3553 dSP; dMARK; dTARGET;
a0d0e21e 3554 I32 value;
533c011a 3555 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3556 SP = MARK;
3557 PUSHi(value);
3558 RETURN;
3559}
3560
3561PP(pp_utime)
3562{
39644a26 3563 dSP; dMARK; dTARGET;
a0d0e21e 3564 I32 value;
533c011a 3565 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3566 SP = MARK;
3567 PUSHi(value);
3568 RETURN;
3569}
3570
3571PP(pp_rename)
3572{
39644a26 3573 dSP; dTARGET;
a0d0e21e 3574 int anum;
2d8e6c8d 3575 STRLEN n_a;
a0d0e21e 3576
2d8e6c8d
GS		 3577 char *tmps2 = POPpx;
3578 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3579 TAINT_PROPER("rename");
3580#ifdef HAS_RENAME
baed7233 3581 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3582#else
6b88bc9c 3583 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3584 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3585 anum = 1;
3586 else {
3654eb6c 3587 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3588 (void)UNLINK(tmps2);
3589 if (!(anum = link(tmps, tmps2)))
3590 anum = UNLINK(tmps);
3591 }
a0d0e21e
LW		 3592 }
3593#endif
3594 SETi( anum >= 0 );
3595 RETURN;
3596}
3597
3598PP(pp_link)
3599{
a0d0e21e 3600#ifdef HAS_LINK
370f6000 3601 dSP; dTARGET;
2d8e6c8d
GS		 3602 STRLEN n_a;
3603 char *tmps2 = POPpx;
3604 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3605 TAINT_PROPER("link");
146174a9 3606 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3607 RETURN;
a0d0e21e 3608#else
0322a713 3609 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3610#endif
a0d0e21e
LW		 3611}
3612
3613PP(pp_symlink)
3614{
a0d0e21e 3615#ifdef HAS_SYMLINK
9cad6237 3616 dSP; dTARGET;
2d8e6c8d
GS		 3617 STRLEN n_a;
3618 char *tmps2 = POPpx;
3619 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3620 TAINT_PROPER("symlink");
3621 SETi( symlink(tmps, tmps2) >= 0 );
3622 RETURN;
3623#else
cea2e8a9 3624 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3625#endif
3626}
3627
3628PP(pp_readlink)
3629{
76ffd3b9 3630 dSP;
a0d0e21e 3631#ifdef HAS_SYMLINK
76ffd3b9 3632 dTARGET;
a0d0e21e 3633 char *tmps;
46fc3d4c 3634 char buf[MAXPATHLEN];
a0d0e21e 3635 int len;
2d8e6c8d 3636 STRLEN n_a;
46fc3d4c 3637
fb73857a 3638#ifndef INCOMPLETE_TAINTS
3639 TAINT;
3640#endif
2d8e6c8d 3641 tmps = POPpx;
97dcea33 3642 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3643 EXTEND(SP, 1);
3644 if (len < 0)
3645 RETPUSHUNDEF;
3646 PUSHp(buf, len);
3647 RETURN;
3648#else
3649 EXTEND(SP, 1);
3650 RETSETUNDEF; /* just pretend it's a normal file */
3651#endif
3652}
3653
3654#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3655STATIC int
cea2e8a9 3656S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3657{
1e422769 3658 char *save_filename = filename;
3659 char *cmdline;
3660 char *s;
760ac839 3661 PerlIO *myfp;
1e422769 3662 int anum = 1;
a0d0e21e 3663
1e422769 3664 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3665 strcpy(cmdline, cmd);
3666 strcat(cmdline, " ");
3667 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3668 *s++ = '\\';
3669 *s++ = *filename++;
3670 }
3671 strcpy(s, " 2>&1");
6ad3d225 3672 myfp = PerlProc_popen(cmdline, "r");
1e422769 3673 Safefree(cmdline);
3674
a0d0e21e 3675 if (myfp) {
1e422769 3676 SV *tmpsv = sv_newmortal();
6b88bc9c 3677 /* Need to save/restore 'PL_rs' ?? */
760ac839 3678 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3679 (void)PerlProc_pclose(myfp);
a0d0e21e 3680 if (s != Nullch) {
1e422769 3681 int e;
3682 for (e = 1;
a0d0e21e 3683#ifdef HAS_SYS_ERRLIST
1e422769 3684 e <= sys_nerr
3685#endif
3686 ; e++)
3687 {
3688 /* you don't see this */
3689 char *errmsg =
3690#ifdef HAS_SYS_ERRLIST
3691 sys_errlist[e]
a0d0e21e 3692#else
1e422769 3693 strerror(e)
a0d0e21e 3694#endif
1e422769 3695 ;
3696 if (!errmsg)
3697 break;
3698 if (instr(s, errmsg)) {
3699 SETERRNO(e,0);
3700 return 0;
3701 }
a0d0e21e 3702 }
748a9306 3703 SETERRNO(0,0);
a0d0e21e
LW		 3704#ifndef EACCES
3705#define EACCES EPERM
3706#endif
1e422769 3707 if (instr(s, "cannot make"))
5b7ea690 3708 SETERRNO(EEXIST,RMS_FEX);
1e422769 3709 else if (instr(s, "existing file"))
5b7ea690 3710 SETERRNO(EEXIST,RMS_FEX);
1e422769 3711 else if (instr(s, "ile exists"))
5b7ea690 3712 SETERRNO(EEXIST,RMS_FEX);
1e422769 3713 else if (instr(s, "non-exist"))
5b7ea690 3714 SETERRNO(ENOENT,RMS_FNF);
1e422769 3715 else if (instr(s, "does not exist"))
5b7ea690 3716 SETERRNO(ENOENT,RMS_FNF);
1e422769 3717 else if (instr(s, "not empty"))
5b7ea690 3718 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3719 else if (instr(s, "cannot access"))
5b7ea690 3720 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3721 else
5b7ea690 3722 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3723 return 0;
3724 }
3725 else { /* some mkdirs return no failure indication */
6b88bc9c 3726 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3727 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3728 anum = !anum;
3729 if (anum)
748a9306 3730 SETERRNO(0,0);
a0d0e21e 3731 else
5b7ea690 3732 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3733 }
3734 return anum;
3735 }
3736 else
3737 return 0;
3738}
3739#endif
3740
c04fee9e
JH		 3741/* This macro removes trailing slashes from a directory name.
3742 * Different operating and file systems take differently to
3743 * trailing slashes. According to POSIX 1003.1 1996 Edition
3744 * any number of trailing slashes should be allowed.
3745 * Thusly we snip them away so that even non-conforming
3746 * systems are happy.
3747 * We should probably do this "filtering" for all
3748 * the functions that expect (potentially) directory names:
3749 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3750 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3751
3752#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3753 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3754 do { \
3755 (len)--; \
3756 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3757 (tmps) = savepvn((tmps), (len)); \
3758 (copy) = TRUE; \
3759 }
3760
a0d0e21e
LW		 3761PP(pp_mkdir)
3762{
39644a26 3763 dSP; dTARGET;
5a211162 3764 int mode;
a0d0e21e
LW		 3765#ifndef HAS_MKDIR
3766 int oldumask;
3767#endif
df25ddba 3768 STRLEN len;
5a211162 3769 char *tmps;
df25ddba 3770 bool copy = FALSE;
5a211162
GS		 3771
3772 if (MAXARG > 1)
3773 mode = POPi;
3774 else
3775 mode = 0777;
3776
c04fee9e 3777 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3778
3779 TAINT_PROPER("mkdir");
3780#ifdef HAS_MKDIR
6ad3d225 3781 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3782#else
3783 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3784 oldumask = PerlLIO_umask(0);
3785 PerlLIO_umask(oldumask);
3786 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3787#endif
df25ddba
JH		 3788 if (copy)
3789 Safefree(tmps);
a0d0e21e
LW		 3790 RETURN;
3791}
3792
3793PP(pp_rmdir)
3794{
39644a26 3795 dSP; dTARGET;
c04fee9e 3796 STRLEN len;
a0d0e21e 3797 char *tmps;
c04fee9e 3798 bool copy = FALSE;
a0d0e21e 3799
c04fee9e 3800 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3801 TAINT_PROPER("rmdir");
3802#ifdef HAS_RMDIR
c04fee9e 3803 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3804#else
c04fee9e 3805 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3806#endif
c04fee9e
JH		 3807 if (copy)
3808 Safefree(tmps);
a0d0e21e
LW		 3809 RETURN;
3810}
3811
3812/* Directory calls. */
3813
3814PP(pp_open_dir)
3815{
a0d0e21e 3816#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3817 dSP;
2d8e6c8d
GS		 3818 STRLEN n_a;
3819 char *dirname = POPpx;
1e2c6ed7
JH		 3820 GV *gv = (GV*)POPs;
3821 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3822
3823 if (!io)
3824 goto nope;
3825
3826 if (IoDIRP(io))
6ad3d225
GS		 3827 PerlDir_close(IoDIRP(io));
3828 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3829 goto nope;
3830
3831 RETPUSHYES;
3832nope:
3833 if (!errno)
5b7ea690 3834 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3835 RETPUSHUNDEF;
3836#else
cea2e8a9 3837 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3838#endif
3839}
3840
3841PP(pp_readdir)
3842{
e8e58922
JH		 3843#if !defined(Direntry_t) || !defined(HAS_READDIR)
3844 DIE(aTHX_ PL_no_dir_func, "readdir");
3845#else
fd8cd3a3 3846#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3847 Direntry_t *readdir (DIR *);
a0d0e21e 3848#endif
e8e58922
JH		 3849 dSP;
3850
3851 SV *sv;
3852 I32 gimme = GIMME;
3853 GV *gv = (GV *)POPs;
a0d0e21e 3854 register Direntry_t *dp;
a0d0e21e
LW		 3855 register IO *io = GvIOn(gv);
3856
3857 if (!io || !IoDIRP(io))
3858 goto nope;
3859
e8e58922
JH		 3860 do {
3861 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3862 if (!dp)
3863 break;
a0d0e21e 3864#ifdef DIRNAMLEN
e8e58922 3865 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3866#else
e8e58922 3867 sv = newSVpv(dp->d_name, 0);
fb73857a 3868#endif
3869#ifndef INCOMPLETE_TAINTS
e8e58922
JH		 3870 if (!(IoFLAGS(io) & IOf_UNTAINT))
3871 SvTAINTED_on(sv);
a0d0e21e 3872#endif
e8e58922 3873 XPUSHs(sv_2mortal(sv));
a0d0e21e 3874 }
e8e58922
JH		 3875 while (gimme == G_ARRAY);
3876
3877 if (!dp && gimme != G_ARRAY)
3878 goto nope;
3879
a0d0e21e
LW		 3880 RETURN;
3881
3882nope:
3883 if (!errno)
5b7ea690 3884 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3885 if (GIMME == G_ARRAY)
3886 RETURN;
3887 else
3888 RETPUSHUNDEF;
a0d0e21e
LW		 3889#endif
3890}
3891
3892PP(pp_telldir)
3893{
a0d0e21e 3894#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3895 dSP; dTARGET;
968dcd91
JH		 3896 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3897 /* XXX netbsd still seemed to.
3898 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3899 --JHI 1999-Feb-02 */
3900# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3901 long telldir (DIR *);
dfe9444c 3902# endif
a0d0e21e
LW		 3903 GV *gv = (GV*)POPs;
3904 register IO *io = GvIOn(gv);
3905
3906 if (!io || !IoDIRP(io))
3907 goto nope;
3908
6ad3d225 3909 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3910 RETURN;
3911nope:
3912 if (!errno)
5b7ea690 3913 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3914 RETPUSHUNDEF;
3915#else
cea2e8a9 3916 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3917#endif
3918}
3919
3920PP(pp_seekdir)
3921{
a0d0e21e 3922#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3923 dSP;
a0d0e21e
LW		 3924 long along = POPl;
3925 GV *gv = (GV*)POPs;
3926 register IO *io = GvIOn(gv);
3927
3928 if (!io || !IoDIRP(io))
3929 goto nope;
3930
6ad3d225 3931 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3932
3933 RETPUSHYES;
3934nope:
3935 if (!errno)
5b7ea690 3936 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3937 RETPUSHUNDEF;
3938#else
cea2e8a9 3939 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3940#endif
3941}
3942
3943PP(pp_rewinddir)
3944{
a0d0e21e 3945#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3946 dSP;
a0d0e21e
LW		 3947 GV *gv = (GV*)POPs;
3948 register IO *io = GvIOn(gv);
3949
3950 if (!io || !IoDIRP(io))
3951 goto nope;
3952
6ad3d225 3953 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3954 RETPUSHYES;
3955nope:
3956 if (!errno)
5b7ea690 3957 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3958 RETPUSHUNDEF;
3959#else
cea2e8a9 3960 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3961#endif
3962}
3963
3964PP(pp_closedir)
3965{
a0d0e21e 3966#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3967 dSP;
a0d0e21e
LW		 3968 GV *gv = (GV*)POPs;
3969 register IO *io = GvIOn(gv);
3970
3971 if (!io || !IoDIRP(io))
3972 goto nope;
3973
3974#ifdef VOID_CLOSEDIR
6ad3d225 3975 PerlDir_close(IoDIRP(io));
a0d0e21e 3976#else
6ad3d225 3977 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3978 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3979 goto nope;
748a9306 3980 }
a0d0e21e
LW		 3981#endif
3982 IoDIRP(io) = 0;
3983
3984 RETPUSHYES;
3985nope:
3986 if (!errno)
5b7ea690 3987 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3988 RETPUSHUNDEF;
3989#else
cea2e8a9 3990 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3991#endif
3992}
3993
3994/* Process control. */
3995
3996PP(pp_fork)
3997{
44a8e56a 3998#ifdef HAS_FORK
39644a26 3999 dSP; dTARGET;
761237fe 4000 Pid_t childpid;
a0d0e21e
LW		 4001 GV *tmpgv;
4002
4003 EXTEND(SP, 1);
45bc9206 4004 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4005 childpid = PerlProc_fork();
a0d0e21e
LW		 4006 if (childpid < 0)
4007 RETSETUNDEF;
4008 if (!childpid) {
4009 /*SUPPRESS 560*/
306196c3
MS		 4010 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4011 SvREADONLY_off(GvSV(tmpgv));
146174a9 4012 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4013 SvREADONLY_on(GvSV(tmpgv));
4014 }
5b7ea690
JH		 4015#ifdef THREADS_HAVE_PIDS
4016 PL_ppid = (IV)getppid();
4017#endif
3280af22 4018 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4019 }
4020 PUSHi(childpid);
4021 RETURN;
4022#else
146174a9 4023# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4024 dSP; dTARGET;
146174a9
CB		 4025 Pid_t childpid;
4026
4027 EXTEND(SP, 1);
4028 PERL_FLUSHALL_FOR_CHILD;
4029 childpid = PerlProc_fork();
60fa28ff
GS		 4030 if (childpid == -1)
4031 RETSETUNDEF;
146174a9
CB		 4032 PUSHi(childpid);
4033 RETURN;
4034# else
0322a713 4035 DIE(aTHX_ PL_no_func, "fork");
146174a9 4036# endif
a0d0e21e
LW		 4037#endif
4038}
4039
4040PP(pp_wait)
4041{
301e8125 4042#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4043 dSP; dTARGET;
761237fe 4044 Pid_t childpid;
a0d0e21e 4045 int argflags;
a0d0e21e 4046
5835a535
JH		 4047 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4048 childpid = wait4pid(-1, &argflags, 0);
4049 else {
4050 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4051 errno == EINTR) {
4052 PERL_ASYNC_CHECK();
4053 }
0a0ada86 4054 }
68a29c53
GS		 4055# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4056 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4057 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4058# else
f86702cc 4059 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4060# endif
44a8e56a 4061 XPUSHi(childpid);
a0d0e21e
LW		 4062 RETURN;
4063#else
0322a713 4064 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4065#endif
4066}
4067
4068PP(pp_waitpid)
4069{
301e8125 4070#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4071 dSP; dTARGET;
4a04c497
NC		 4072 Pid_t pid;
4073 Pid_t result;
a0d0e21e
LW		 4074 int optype;
4075 int argflags;
a0d0e21e 4076
a0d0e21e 4077 optype = POPi;
4a04c497 4078 pid = TOPi;
5835a535 4079 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4a04c497 4080 result = wait4pid(pid, &argflags, optype);
5835a535 4081 else {
4a04c497 4082 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
5835a535
JH		 4083 errno == EINTR) {
4084 PERL_ASYNC_CHECK();
4085 }
0a0ada86 4086 }
68a29c53
GS		 4087# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4088 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4a04c497 4089 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4090# else
4a04c497 4091 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4092# endif
4a04c497 4093 SETi(result);
a0d0e21e
LW		 4094 RETURN;
4095#else
0322a713 4096 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4097#endif
4098}
4099
4100PP(pp_system)
4101{
39644a26 4102 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4103 I32 value;
2d8e6c8d 4104 STRLEN n_a;
76ffd3b9 4105 int result;
e7766f89 4106 I32 did_pipes = 0;
a0d0e21e 4107
bbd7eb8a
RD		 4108 if (PL_tainting) {
4109 TAINT_ENV();
4110 while (++MARK <= SP) {
4111 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4112 if (PL_tainted)
bbd7eb8a
RD		 4113 break;
4114 }
4115 MARK = ORIGMARK;
5b7ea690 4116 TAINT_PROPER("system");
a0d0e21e 4117 }
45bc9206 4118 PERL_FLUSHALL_FOR_CHILD;
273b0206 4119#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4120 {
eb160463
GS		 4121 Pid_t childpid;
4122 int pp[2];
4123
4124 if (PerlProc_pipe(pp) >= 0)
4125 did_pipes = 1;
4126 while ((childpid = PerlProc_fork()) == -1) {
4127 if (errno != EAGAIN) {
4128 value = -1;
4129 SP = ORIGMARK;
4130 PUSHi(value);
4131 if (did_pipes) {
4132 PerlLIO_close(pp[0]);
4133 PerlLIO_close(pp[1]);
4134 }
4135 RETURN;
4136 }
4137 sleep(5);
4138 }
4139 if (childpid > 0) {
4140 Sigsave_t ihand,qhand; /* place to save signals during system() */
4141 int status;
4142
4143 if (did_pipes)
4144 PerlLIO_close(pp[1]);
64ca3a65 4145#ifndef PERL_MICRO
eb160463
GS		 4146 rsignal_save(SIGINT, SIG_IGN, &ihand);
4147 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4148#endif
eb160463
GS		 4149 do {
4150 result = wait4pid(childpid, &status, 0);
4151 } while (result == -1 && errno == EINTR);
64ca3a65 4152#ifndef PERL_MICRO
eb160463
GS		 4153 (void)rsignal_restore(SIGINT, &ihand);
4154 (void)rsignal_restore(SIGQUIT, &qhand);
4155#endif
4156 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4157 do_execfree(); /* free any memory child malloced on fork */
4158 SP = ORIGMARK;
4159 if (did_pipes) {
4160 int errkid;
4161 int n = 0, n1;
4162
4163 while (n < sizeof(int)) {
4164 n1 = PerlLIO_read(pp[0],
4165 (void*)(((char*)&errkid)+n),
4166 (sizeof(int)) - n);
4167 if (n1 <= 0)
4168 break;
4169 n += n1;
4170 }
4171 PerlLIO_close(pp[0]);
4172 if (n) { /* Error */
4173 if (n != sizeof(int))
4174 DIE(aTHX_ "panic: kid popen errno read");
4175 errno = errkid; /* Propagate errno from kid */
4176 STATUS_CURRENT = -1;
4177 }
4178 }
4179 PUSHi(STATUS_CURRENT);
4180 RETURN;
4181 }
4182 if (did_pipes) {
4183 PerlLIO_close(pp[0]);
d5a9bfb0 4184#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4185 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4186#endif
eb160463 4187 }
e0a1f643
JH		 4188 if (PL_op->op_flags & OPf_STACKED) {
4189 SV *really = *++MARK;
4190 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4191 }
4192 else if (SP - MARK != 1)
4193 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4194 else {
4195 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4196 }
4197 PerlProc__exit(-1);
d5a9bfb0 4198 }
c3293030 4199#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4200 PL_statusvalue = 0;
4201 result = 0;
911d147d 4202 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4203 SV *really = *++MARK;
18729d3e 4204# if defined(WIN32) || defined(OS2)
54725af6
GS		 4205 value = (I32)do_aspawn(really, MARK, SP);
4206# else
c5be433b 4207 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4208# endif
a0d0e21e 4209 }
54725af6 4210 else if (SP - MARK != 1) {
18729d3e 4211# if defined(WIN32) || defined(OS2)
54725af6
GS		 4212 value = (I32)do_aspawn(Nullsv, MARK, SP);
4213# else
c5be433b 4214 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4215# endif
4216 }
a0d0e21e 4217 else {
c5be433b 4218 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4219 }
922b1888
GS		 4220 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4221 result = 1;
f86702cc 4222 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4223 do_execfree();
4224 SP = ORIGMARK;
922b1888 4225 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4226#endif /* !FORK or VMS */
4227 RETURN;
4228}
4229
4230PP(pp_exec)
4231{
39644a26 4232 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4233 I32 value;
2d8e6c8d 4234 STRLEN n_a;
a0d0e21e 4235
bbd7eb8a
RD		 4236 if (PL_tainting) {
4237 TAINT_ENV();
4238 while (++MARK <= SP) {
4239 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4240 if (PL_tainted)
bbd7eb8a
RD		 4241 break;
4242 }
4243 MARK = ORIGMARK;
5b7ea690 4244 TAINT_PROPER("exec");
bbd7eb8a 4245 }
45bc9206 4246 PERL_FLUSHALL_FOR_CHILD;
533c011a 4247 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4248 SV *really = *++MARK;
4249 value = (I32)do_aexec(really, MARK, SP);
4250 }
4251 else if (SP - MARK != 1)
4252#ifdef VMS
4253 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4254#else
092bebab
JH		 4255# ifdef __OPEN_VM
4256 {
c5be433b 4257 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4258 value = 0;
4259 }
4260# else
a0d0e21e 4261 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4262# endif
a0d0e21e
LW		 4263#endif
4264 else {
a0d0e21e 4265#ifdef VMS
2d8e6c8d 4266 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4267#else
092bebab 4268# ifdef __OPEN_VM
c5be433b 4269 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4270 value = 0;
4271# else
2d8e6c8d 4272 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4273# endif
a0d0e21e
LW		 4274#endif
4275 }
146174a9 4276
a0d0e21e
LW		 4277 SP = ORIGMARK;
4278 PUSHi(value);
4279 RETURN;
4280}
4281
4282PP(pp_kill)
4283{
9cad6237 4284#ifdef HAS_KILL
39644a26 4285 dSP; dMARK; dTARGET;
a0d0e21e 4286 I32 value;
533c011a 4287 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4288 SP = MARK;
4289 PUSHi(value);
4290 RETURN;
4291#else
0322a713 4292 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4293#endif
4294}
4295
4296PP(pp_getppid)
4297{
4298#ifdef HAS_GETPPID
39644a26 4299 dSP; dTARGET;
5b7ea690 4300# ifdef THREADS_HAVE_PIDS
b495b599
NC		 4301 if (PL_ppid != 1 && getppid() == 1)
4302 /* maybe the parent process has died. Refresh ppid cache */
4303 PL_ppid = 1;
5b7ea690
JH		 4304 XPUSHi( PL_ppid );
4305# else
a0d0e21e 4306 XPUSHi( getppid() );
5b7ea690 4307# endif
a0d0e21e
LW		 4308 RETURN;
4309#else
cea2e8a9 4310 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4311#endif
4312}
4313
4314PP(pp_getpgrp)
4315{
4316#ifdef HAS_GETPGRP
39644a26 4317 dSP; dTARGET;
d8a83dd3 4318 Pid_t pid;
9853a804 4319 Pid_t pgrp;
a0d0e21e
LW		 4320
4321 if (MAXARG < 1)
4322 pid = 0;
4323 else
4324 pid = SvIVx(POPs);
c3293030 4325#ifdef BSD_GETPGRP
9853a804 4326 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4327#else
146174a9 4328 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4329 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4330 pgrp = getpgrp();
a0d0e21e 4331#endif
9853a804 4332 XPUSHi(pgrp);
a0d0e21e
LW		 4333 RETURN;
4334#else
cea2e8a9 4335 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4336#endif
4337}
4338
4339PP(pp_setpgrp)
4340{
4341#ifdef HAS_SETPGRP
39644a26 4342 dSP; dTARGET;
d8a83dd3
JH		 4343 Pid_t pgrp;
4344 Pid_t pid;
a0d0e21e
LW		 4345 if (MAXARG < 2) {
4346 pgrp = 0;
4347 pid = 0;
4348 }
4349 else {
4350 pgrp = POPi;
4351 pid = TOPi;
4352 }
4353
4354 TAINT_PROPER("setpgrp");
c3293030
IZ		 4355#ifdef BSD_SETPGRP
4356 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4357#else
146174a9
CB		 4358 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4359 || (pid != 0 && pid != PerlProc_getpid()))
4360 {
4361 DIE(aTHX_ "setpgrp can't take arguments");
4362 }
a0d0e21e
LW		 4363 SETi( setpgrp() >= 0 );
4364#endif /* USE_BSDPGRP */
4365 RETURN;
4366#else
cea2e8a9 4367 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4368#endif
4369}
4370
4371PP(pp_getpriority)
4372{
a0d0e21e 4373#ifdef HAS_GETPRIORITY
9cad6237 4374 dSP; dTARGET;
d05c1ba0
JH		 4375 int who = POPi;
4376 int which = TOPi;
a0d0e21e
LW		 4377 SETi( getpriority(which, who) );
4378 RETURN;
4379#else
cea2e8a9 4380 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4381#endif
4382}
4383
4384PP(pp_setpriority)
4385{
a0d0e21e 4386#ifdef HAS_SETPRIORITY
9cad6237 4387 dSP; dTARGET;
d05c1ba0
JH		 4388 int niceval = POPi;
4389 int who = POPi;
4390 int which = TOPi;
a0d0e21e
LW		 4391 TAINT_PROPER("setpriority");
4392 SETi( setpriority(which, who, niceval) >= 0 );
4393 RETURN;
4394#else
cea2e8a9 4395 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4396#endif
4397}
4398
4399/* Time calls. */
4400
4401PP(pp_time)
4402{
39644a26 4403 dSP; dTARGET;
cbdc8872 4404#ifdef BIG_TIME
4405 XPUSHn( time(Null(Time_t*)) );
4406#else
a0d0e21e 4407 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4408#endif
a0d0e21e
LW		 4409 RETURN;
4410}
4411
a0d0e21e
LW		 4412PP(pp_tms)
4413{
9cad6237 4414#ifdef HAS_TIMES
39644a26 4415 dSP;
a0d0e21e 4416 EXTEND(SP, 4);
a0d0e21e 4417#ifndef VMS
3280af22 4418 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4419#else
6b88bc9c 4420 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4421 /* struct tms, though same data */
4422 /* is returned. */
a0d0e21e
LW		 4423#endif
4424
5b7ea690 4425 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4426 if (GIMME == G_ARRAY) {
5b7ea690
JH		 4427 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4428 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4429 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4430 }
4431 RETURN;
9cad6237 4432#else
75a5c1c6
JH		 4433# ifdef PERL_MICRO
4434 dSP;
4435 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4436 EXTEND(SP, 4);
4437 if (GIMME == G_ARRAY) {
4438 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4439 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4440 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4441 }
4442 RETURN;
4443# else
9cad6237 4444 DIE(aTHX_ "times not implemented");
75a5c1c6 4445# endif
55497cff 4446#endif /* HAS_TIMES */
a0d0e21e
LW		 4447}
4448
4449PP(pp_localtime)
4450{
cea2e8a9 4451 return pp_gmtime();
a0d0e21e
LW		 4452}
4453
4454PP(pp_gmtime)
4455{
39644a26 4456 dSP;
a0d0e21e 4457 Time_t when;
a00f3e00
AL		 4458 const struct tm *tmbuf;
4459 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4460 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
a0d0e21e
LW		 4461 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4462
4463 if (MAXARG < 1)
4464 (void)time(&when);
4465 else
cbdc8872 4466#ifdef BIG_TIME
4467 when = (Time_t)SvNVx(POPs);
4468#else
a0d0e21e 4469 when = (Time_t)SvIVx(POPs);
cbdc8872 4470#endif
a0d0e21e 4471
533c011a 4472 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4473 tmbuf = localtime(&when);
4474 else
4475 tmbuf = gmtime(&when);
4476
a0d0e21e 4477 if (GIMME != G_ARRAY) {
46fc3d4c 4478 SV *tsv;
9a5ff6d9
AB		 4479 EXTEND(SP, 1);
4480 EXTEND_MORTAL(1);
a0d0e21e
LW		 4481 if (!tmbuf)
4482 RETPUSHUNDEF;
be28567c 4483 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4484 dayname[tmbuf->tm_wday],
4485 monname[tmbuf->tm_mon],
be28567c
GS		 4486 tmbuf->tm_mday,
4487 tmbuf->tm_hour,
4488 tmbuf->tm_min,
4489 tmbuf->tm_sec,
4490 tmbuf->tm_year + 1900);
46fc3d4c 4491 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4492 }
4493 else if (tmbuf) {
9a5ff6d9
AB		 4494 EXTEND(SP, 9);
4495 EXTEND_MORTAL(9);
4496 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4497 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4498 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4499 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4500 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4501 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4502 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4503 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4504 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4505 }
4506 RETURN;
4507}
4508
4509PP(pp_alarm)
4510{
9cad6237 4511#ifdef HAS_ALARM
39644a26 4512 dSP; dTARGET;
a0d0e21e 4513 int anum;
a0d0e21e
LW		 4514 anum = POPi;
4515 anum = alarm((unsigned int)anum);
4516 EXTEND(SP, 1);
4517 if (anum < 0)
4518 RETPUSHUNDEF;
c6419e06 4519 PUSHi(anum);
a0d0e21e
LW		 4520 RETURN;
4521#else
0322a713 4522 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4523#endif
4524}
4525
4526PP(pp_sleep)
4527{
39644a26 4528 dSP; dTARGET;
a0d0e21e
LW		 4529 I32 duration;
4530 Time_t lasttime;
4531 Time_t when;
4532
4533 (void)time(&lasttime);
4534 if (MAXARG < 1)
76e3520e 4535 PerlProc_pause();
a0d0e21e
LW		 4536 else {
4537 duration = POPi;
76e3520e 4538 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4539 }
4540 (void)time(&when);
4541 XPUSHi(when - lasttime);
4542 RETURN;
4543}
4544
4545/* Shared memory. */
4546
4547PP(pp_shmget)
4548{
cea2e8a9 4549 return pp_semget();
a0d0e21e
LW		 4550}
4551
4552PP(pp_shmctl)
4553{
cea2e8a9 4554 return pp_semctl();
a0d0e21e
LW		 4555}
4556
4557PP(pp_shmread)
4558{
cea2e8a9 4559 return pp_shmwrite();
a0d0e21e
LW		 4560}
4561
4562PP(pp_shmwrite)
4563{
4564#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4565 dSP; dMARK; dTARGET;
533c011a 4566 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4567 SP = MARK;
4568 PUSHi(value);
4569 RETURN;
4570#else
cea2e8a9 4571 return pp_semget();
a0d0e21e
LW		 4572#endif
4573}
4574
4575/* Message passing. */
4576
4577PP(pp_msgget)
4578{
cea2e8a9 4579 return pp_semget();
a0d0e21e
LW		 4580}
4581
4582PP(pp_msgctl)
4583{
cea2e8a9 4584 return pp_semctl();
a0d0e21e
LW		 4585}
4586
4587PP(pp_msgsnd)
4588{
4589#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4590 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4591 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4592 SP = MARK;
4593 PUSHi(value);
4594 RETURN;
4595#else
cea2e8a9 4596 return pp_semget();
a0d0e21e
LW		 4597#endif
4598}
4599
4600PP(pp_msgrcv)
4601{
4602#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4603 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4604 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4605 SP = MARK;
4606 PUSHi(value);
4607 RETURN;
4608#else
cea2e8a9 4609 return pp_semget();
a0d0e21e
LW		 4610#endif
4611}
4612
4613/* Semaphores. */
4614
4615PP(pp_semget)
4616{
4617#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4618 dSP; dMARK; dTARGET;
533c011a 4619 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4620 SP = MARK;
4621 if (anum == -1)
4622 RETPUSHUNDEF;
4623 PUSHi(anum);
4624 RETURN;
4625#else
cea2e8a9 4626 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4627#endif
4628}
4629
4630PP(pp_semctl)
4631{
4632#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4633 dSP; dMARK; dTARGET;
533c011a 4634 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4635 SP = MARK;
4636 if (anum == -1)
4637 RETSETUNDEF;
4638 if (anum != 0) {
4639 PUSHi(anum);
4640 }
4641 else {
8903cb82 4642 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4643 }
4644 RETURN;
4645#else
cea2e8a9 4646 return pp_semget();
a0d0e21e
LW		 4647#endif
4648}
4649
4650PP(pp_semop)
4651{
4652#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4653 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4654 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4655 SP = MARK;
4656 PUSHi(value);
4657 RETURN;
4658#else
cea2e8a9 4659 return pp_semget();
a0d0e21e
LW		 4660#endif
4661}
4662
4663/* Get system info. */
4664
4665PP(pp_ghbyname)
4666{
693762b4 4667#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4668 return pp_ghostent();
a0d0e21e 4669#else
cea2e8a9 4670 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4671#endif
4672}
4673
4674PP(pp_ghbyaddr)
4675{
693762b4 4676#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4677 return pp_ghostent();
a0d0e21e 4678#else
cea2e8a9 4679 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4680#endif
4681}
4682
4683PP(pp_ghostent)
4684{
693762b4 4685#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4686 dSP;
533c011a 4687 I32 which = PL_op->op_type;
a0d0e21e
LW		 4688 register char **elem;
4689 register SV *sv;
dc45a647 4690#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4691 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4692 struct hostent *gethostbyname(Netdb_name_t);
4693 struct hostent *gethostent(void);
a0d0e21e
LW		 4694#endif
4695 struct hostent *hent;
4696 unsigned long len;
2d8e6c8d 4697 STRLEN n_a;
a0d0e21e
LW		 4698
4699 EXTEND(SP, 10);
edd309b7 4700 if (which == OP_GHBYNAME) {
dc45a647 4701#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4702 char* name = POPpbytex;
4703 hent = PerlSock_gethostbyname(name);
dc45a647 4704#else
cea2e8a9 4705 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4706#endif
edd309b7 4707 }
a0d0e21e 4708 else if (which == OP_GHBYADDR) {
dc45a647 4709#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4710 int addrtype = POPi;
748a9306 4711 SV *addrsv = POPs;
a0d0e21e 4712 STRLEN addrlen;
595ae481 4713 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4714
4599a1de 4715 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4716#else
cea2e8a9 4717 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4718#endif
a0d0e21e
LW		 4719 }
4720 else
4721#ifdef HAS_GETHOSTENT
6ad3d225 4722 hent = PerlSock_gethostent();
a0d0e21e 4723#else
cea2e8a9 4724 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4725#endif
4726
4727#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4728 if (!hent) {
4729#ifdef USE_REENTRANT_API
4730# ifdef USE_GETHOSTENT_ERRNO
4731 h_errno = PL_reentrant_buffer->_gethostent_errno;
4732# endif
4733#endif
4734 STATUS_NATIVE_SET(h_errno);
4735 }
a0d0e21e
LW		 4736#endif
4737
4738 if (GIMME != G_ARRAY) {
4739 PUSHs(sv = sv_newmortal());
4740 if (hent) {
4741 if (which == OP_GHBYNAME) {
fd0af264 4742 if (hent->h_addr)
4743 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4744 }
4745 else
4746 sv_setpv(sv, (char*)hent->h_name);
4747 }
4748 RETURN;
4749 }
4750
4751 if (hent) {
3280af22 4752 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4753 sv_setpv(sv, (char*)hent->h_name);
3280af22 4754 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4755 for (elem = hent->h_aliases; elem && *elem; elem++) {
4756 sv_catpv(sv, *elem);
4757 if (elem[1])
4758 sv_catpvn(sv, " ", 1);
4759 }
3280af22 4760 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4761 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4762 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4763 len = hent->h_length;
1e422769 4764 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4765#ifdef h_addr
4766 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4767 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4768 sv_setpvn(sv, *elem, len);
4769 }
4770#else
6b88bc9c 4771 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4772 if (hent->h_addr)
4773 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4774#endif /* h_addr */
4775 }
4776 RETURN;
4777#else
cea2e8a9 4778 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4779#endif
4780}
4781
4782PP(pp_gnbyname)
4783{
693762b4 4784#ifdef HAS_GETNETBYNAME
cea2e8a9 4785 return pp_gnetent();
a0d0e21e 4786#else
cea2e8a9 4787 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4788#endif
4789}
4790
4791PP(pp_gnbyaddr)
4792{
693762b4 4793#ifdef HAS_GETNETBYADDR
cea2e8a9 4794 return pp_gnetent();
a0d0e21e 4795#else
cea2e8a9 4796 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4797#endif
4798}
4799
4800PP(pp_gnetent)
4801{
693762b4 4802#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4803 dSP;
533c011a 4804 I32 which = PL_op->op_type;
a0d0e21e
LW		 4805 register char **elem;
4806 register SV *sv;
dc45a647 4807#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4808 struct netent *getnetbyaddr(Netdb_net_t, int);
4809 struct netent *getnetbyname(Netdb_name_t);
4810 struct netent *getnetent(void);
8ac85365 4811#endif
a0d0e21e 4812 struct netent *nent;
2d8e6c8d 4813 STRLEN n_a;
a0d0e21e 4814
edd309b7 4815 if (which == OP_GNBYNAME){
dc45a647 4816#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4817 char *name = POPpbytex;
4818 nent = PerlSock_getnetbyname(name);
dc45a647 4819#else
cea2e8a9 4820 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4821#endif
edd309b7 4822 }
a0d0e21e 4823 else if (which == OP_GNBYADDR) {
dc45a647 4824#ifdef HAS_GETNETBYADDR
a0d0e21e 4825 int addrtype = POPi;
3bb7c1b4 4826 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4827 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4828#else
cea2e8a9 4829 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4830#endif
a0d0e21e
LW		 4831 }
4832 else
dc45a647 4833#ifdef HAS_GETNETENT
76e3520e 4834 nent = PerlSock_getnetent();
dc45a647 4835#else
cea2e8a9 4836 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4837#endif
a0d0e21e 4838
10bc17b6
JH		 4839#ifdef HOST_NOT_FOUND
4840 if (!nent) {
4841#ifdef USE_REENTRANT_API
4842# ifdef USE_GETNETENT_ERRNO
4843 h_errno = PL_reentrant_buffer->_getnetent_errno;
4844# endif
4845#endif
4846 STATUS_NATIVE_SET(h_errno);
4847 }
4848#endif
4849
a0d0e21e
LW		 4850 EXTEND(SP, 4);
4851 if (GIMME != G_ARRAY) {
4852 PUSHs(sv = sv_newmortal());
4853 if (nent) {
4854 if (which == OP_GNBYNAME)
1e422769 4855 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4856 else
4857 sv_setpv(sv, nent->n_name);
4858 }
4859 RETURN;
4860 }
4861
4862 if (nent) {
3280af22 4863 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4864 sv_setpv(sv, nent->n_name);
3280af22 4865 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4866 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4867 sv_catpv(sv, *elem);
4868 if (elem[1])
4869 sv_catpvn(sv, " ", 1);
4870 }
3280af22 4871 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4872 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4873 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4874 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4875 }
4876
4877 RETURN;
4878#else
cea2e8a9 4879 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4880#endif
4881}
4882
4883PP(pp_gpbyname)
4884{
693762b4 4885#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4886 return pp_gprotoent();
a0d0e21e 4887#else
cea2e8a9 4888 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4889#endif
4890}
4891
4892PP(pp_gpbynumber)
4893{
693762b4 4894#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4895 return pp_gprotoent();
a0d0e21e 4896#else
cea2e8a9 4897 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4898#endif
4899}
4900
4901PP(pp_gprotoent)
4902{
693762b4 4903#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4904 dSP;
533c011a 4905 I32 which = PL_op->op_type;
a0d0e21e 4906 register char **elem;
301e8125 4907 register SV *sv;
dc45a647 4908#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4909 struct protoent *getprotobyname(Netdb_name_t);
4910 struct protoent *getprotobynumber(int);
4911 struct protoent *getprotoent(void);
8ac85365 4912#endif
a0d0e21e 4913 struct protoent *pent;
2d8e6c8d 4914 STRLEN n_a;
a0d0e21e 4915
edd309b7 4916 if (which == OP_GPBYNAME) {
e5c9fcd0 4917#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4918 char* name = POPpbytex;
4919 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4920#else
cea2e8a9 4921 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4922#endif
edd309b7
JH		 4923 }
4924 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4925#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4926 int number = POPi;
4927 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4928#else
edd309b7 4929 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4930#endif
edd309b7 4931 }
a0d0e21e 4932 else
e5c9fcd0 4933#ifdef HAS_GETPROTOENT
6ad3d225 4934 pent = PerlSock_getprotoent();
e5c9fcd0 4935#else
cea2e8a9 4936 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4937#endif
a0d0e21e
LW		 4938
4939 EXTEND(SP, 3);
4940 if (GIMME != G_ARRAY) {
4941 PUSHs(sv = sv_newmortal());
4942 if (pent) {
4943 if (which == OP_GPBYNAME)
1e422769 4944 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4945 else
4946 sv_setpv(sv, pent->p_name);
4947 }
4948 RETURN;
4949 }
4950
4951 if (pent) {
3280af22 4952 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4953 sv_setpv(sv, pent->p_name);
3280af22 4954 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4955 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4956 sv_catpv(sv, *elem);
4957 if (elem[1])
4958 sv_catpvn(sv, " ", 1);
4959 }
3280af22 4960 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4961 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4962 }
4963
4964 RETURN;
4965#else
cea2e8a9 4966 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4967#endif
4968}
4969
4970PP(pp_gsbyname)
4971{
9ec75305 4972#ifdef HAS_GETSERVBYNAME
cea2e8a9 4973 return pp_gservent();
a0d0e21e 4974#else
cea2e8a9 4975 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4976#endif
4977}
4978
4979PP(pp_gsbyport)
4980{
9ec75305 4981#ifdef HAS_GETSERVBYPORT
cea2e8a9 4982 return pp_gservent();
a0d0e21e 4983#else
cea2e8a9 4984 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4985#endif
4986}
4987
4988PP(pp_gservent)
4989{
693762b4 4990#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4991 dSP;
533c011a 4992 I32 which = PL_op->op_type;
a0d0e21e
LW		 4993 register char **elem;
4994 register SV *sv;
dc45a647 4995#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4996 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4997 struct servent *getservbyport(int, Netdb_name_t);
4998 struct servent *getservent(void);
8ac85365 4999#endif
a0d0e21e 5000 struct servent *sent;
2d8e6c8d 5001 STRLEN n_a;
a0d0e21e
LW		 5002
5003 if (which == OP_GSBYNAME) {
dc45a647 5004#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5005 char *proto = POPpbytex;
5006 char *name = POPpbytex;
a0d0e21e
LW		 5007
5008 if (proto && !*proto)
5009 proto = Nullch;
5010
6ad3d225 5011 sent = PerlSock_getservbyname(name, proto);
dc45a647 5012#else
cea2e8a9 5013 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5014#endif
a0d0e21e
LW		 5015 }
5016 else if (which == OP_GSBYPORT) {
dc45a647 5017#ifdef HAS_GETSERVBYPORT
42e0c139 5018 char *proto = POPpbytex;
eb160463 5019 unsigned short port = (unsigned short)POPu;
a0d0e21e 5020
bda19f49
JH		 5021 if (proto && !*proto)
5022 proto = Nullch;
5023
36477c24 5024#ifdef HAS_HTONS
6ad3d225 5025 port = PerlSock_htons(port);
36477c24 5026#endif
6ad3d225 5027 sent = PerlSock_getservbyport(port, proto);
dc45a647 5028#else
cea2e8a9 5029 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5030#endif
a0d0e21e
LW		 5031 }
5032 else
e5c9fcd0 5033#ifdef HAS_GETSERVENT
6ad3d225 5034 sent = PerlSock_getservent();
e5c9fcd0 5035#else
cea2e8a9 5036 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5037#endif
a0d0e21e
LW		 5038
5039 EXTEND(SP, 4);
5040 if (GIMME != G_ARRAY) {
5041 PUSHs(sv = sv_newmortal());
5042 if (sent) {
5043 if (which == OP_GSBYNAME) {
5044#ifdef HAS_NTOHS
6ad3d225 5045 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5046#else
1e422769 5047 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5048#endif
5049 }
5050 else
5051 sv_setpv(sv, sent->s_name);
5052 }
5053 RETURN;
5054 }
5055
5056 if (sent) {
3280af22 5057 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5058 sv_setpv(sv, sent->s_name);
3280af22 5059 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5060 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5061 sv_catpv(sv, *elem);
5062 if (elem[1])
5063 sv_catpvn(sv, " ", 1);
5064 }
3280af22 5065 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5066#ifdef HAS_NTOHS
76e3520e 5067 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5068#else
1e422769 5069 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5070#endif
3280af22 5071 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5072 sv_setpv(sv, sent->s_proto);
5073 }
5074
5075 RETURN;
5076#else
cea2e8a9 5077 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5078#endif
5079}
5080
5081PP(pp_shostent)
5082{
693762b4 5083#ifdef HAS_SETHOSTENT
9cad6237 5084 dSP;
76e3520e 5085 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5086 RETSETYES;
5087#else
cea2e8a9 5088 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5089#endif
5090}
5091
5092PP(pp_snetent)
5093{
693762b4 5094#ifdef HAS_SETNETENT
9cad6237 5095 dSP;
76e3520e 5096 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5097 RETSETYES;
5098#else
cea2e8a9 5099 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5100#endif
5101}
5102
5103PP(pp_sprotoent)
5104{
693762b4 5105#ifdef HAS_SETPROTOENT
9cad6237 5106 dSP;
76e3520e 5107 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5108 RETSETYES;
5109#else
cea2e8a9 5110 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5111#endif
5112}
5113
5114PP(pp_sservent)
5115{
693762b4 5116#ifdef HAS_SETSERVENT
9cad6237 5117 dSP;
76e3520e 5118 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5119 RETSETYES;
5120#else
cea2e8a9 5121 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5122#endif
5123}
5124
5125PP(pp_ehostent)
5126{
693762b4 5127#ifdef HAS_ENDHOSTENT
9cad6237 5128 dSP;
76e3520e 5129 PerlSock_endhostent();
924508f0 5130 EXTEND(SP,1);
a0d0e21e
LW		 5131 RETPUSHYES;
5132#else
cea2e8a9 5133 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5134#endif
5135}
5136
5137PP(pp_enetent)
5138{
693762b4 5139#ifdef HAS_ENDNETENT
9cad6237 5140 dSP;
76e3520e 5141 PerlSock_endnetent();
924508f0 5142 EXTEND(SP,1);
a0d0e21e
LW		 5143 RETPUSHYES;
5144#else
cea2e8a9 5145 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5146#endif
5147}
5148
5149PP(pp_eprotoent)
5150{
693762b4 5151#ifdef HAS_ENDPROTOENT
9cad6237 5152 dSP;
76e3520e 5153 PerlSock_endprotoent();
924508f0 5154 EXTEND(SP,1);
a0d0e21e
LW		 5155 RETPUSHYES;
5156#else
cea2e8a9 5157 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5158#endif
5159}
5160
5161PP(pp_eservent)
5162{
693762b4 5163#ifdef HAS_ENDSERVENT
9cad6237 5164 dSP;
76e3520e 5165 PerlSock_endservent();
924508f0 5166 EXTEND(SP,1);
a0d0e21e
LW		 5167 RETPUSHYES;
5168#else
cea2e8a9 5169 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5170#endif
5171}
5172
5173PP(pp_gpwnam)
5174{
5175#ifdef HAS_PASSWD
cea2e8a9 5176 return pp_gpwent();
a0d0e21e 5177#else
cea2e8a9 5178 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5179#endif
5180}
5181
5182PP(pp_gpwuid)
5183{
5184#ifdef HAS_PASSWD
cea2e8a9 5185 return pp_gpwent();
a0d0e21e 5186#else
cea2e8a9 5187 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5188#endif
5189}
5190
5191PP(pp_gpwent)
5192{
0994c4d0 5193#ifdef HAS_PASSWD
9cad6237 5194 dSP;
533c011a 5195 I32 which = PL_op->op_type;
a0d0e21e 5196 register SV *sv;
2d8e6c8d 5197 STRLEN n_a;
e3aefe8d 5198 struct passwd *pwent = NULL;
301e8125 5199 /*
bcf53261
JH		 5200 * We currently support only the SysV getsp* shadow password interface.
5201 * The interface is declared in <shadow.h> and often one needs to link
5202 * with -lsecurity or some such.
5203 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5204 * (and SCO?)
5205 *
5206 * AIX getpwnam() is clever enough to return the encrypted password
5207 * only if the caller (euid?) is root.
5208 *
ee87c6cb 5209 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5210 * seem to contain more than one interface for accessing the shadow
5211 * password databases, possibly for compatibility reasons.
3813c136 5212 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5213 * are much more complicated, but also very similar to each other.
5214 *
5215 * <sys/types.h>
5216 * <sys/security.h>
5217 * <prot.h>
5218 * struct pr_passwd *getprpw*();
5219 * The password is in
3813c136
JH		 5220 * char getprpw*(...).ufld.fd_encrypt[]
5221 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5222 *
5223 * <sys/types.h>
5224 * <sys/security.h>
5225 * <prot.h>
5226 * struct es_passwd *getespw*();
5227 * The password is in
5228 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5229 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5230 *
ee87c6cb
JH		 5231 * <userpw.h> (AIX)
5232 * struct userpw *getuserpw();
5233 * The password is in
5234 * char *(getuserpw(...)).spw_upw_passwd
5235 * (but the de facto standard getpwnam() should work okay)
5236 *
3813c136 5237 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5238 *
5239 * In HP-UX for getprpw*() the manual page claims that one should include
5240 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5241 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5242 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5243 *
5244 * Note that <sys/security.h> is already probed for, but currently
5245 * it is only included in special cases.
301e8125 5246 *
bcf53261
JH		 5247 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5248 * be preferred interface, even though also the getprpw*() interface
5249 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5250 * One also needs to call set_auth_parameters() in main() before
5251 * doing anything else, whether one is using getespw*() or getprpw*().
5252 *
5253 * Note that accessing the shadow databases can be magnitudes
5254 * slower than accessing the standard databases.
bcf53261
JH		 5255 *
5256 * --jhi
5257 */
a0d0e21e 5258
e67108bc
JH		 5259# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5260 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5261 * the pw_comment is left uninitialized. */
5262 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5263# endif
5264
e3aefe8d
JH		 5265 switch (which) {
5266 case OP_GPWNAM:
edd309b7
JH		 5267 {
5268 char* name = POPpbytex;
5269 pwent = getpwnam(name);
5270 }
5271 break;
e3aefe8d 5272 case OP_GPWUID:
edd309b7
JH		 5273 {
5274 Uid_t uid = POPi;
5275 pwent = getpwuid(uid);
5276 }
e3aefe8d
JH		 5277 break;
5278 case OP_GPWENT:
1883634f 5279# ifdef HAS_GETPWENT
e3aefe8d 5280 pwent = getpwent();
faea9016
IRC		 5281#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5282 if (pwent) pwent = getpwnam(pwent->pw_name);
5283#endif
1883634f 5284# else
a45d1c96 5285 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5286# endif
e3aefe8d
JH		 5287 break;
5288 }
8c0bfa08 5289
a0d0e21e
LW		 5290 EXTEND(SP, 10);
5291 if (GIMME != G_ARRAY) {
5292 PUSHs(sv = sv_newmortal());
5293 if (pwent) {
5294 if (which == OP_GPWNAM)
1883634f 5295# if Uid_t_sign <= 0
1e422769 5296 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5297# else
23dcd6c8 5298 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5299# endif
a0d0e21e
LW		 5300 else
5301 sv_setpv(sv, pwent->pw_name);
5302 }
5303 RETURN;
5304 }
5305
5306 if (pwent) {
3280af22 5307 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5308 sv_setpv(sv, pwent->pw_name);
6ee623d5 5309
3280af22 5310 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5311 SvPOK_off(sv);
5312 /* If we have getspnam(), we try to dig up the shadow
5313 * password. If we are underprivileged, the shadow
5314 * interface will set the errno to EACCES or similar,
5315 * and return a null pointer. If this happens, we will
5316 * use the dummy password (usually "*" or "x") from the
5317 * standard password database.
5318 *
5319 * In theory we could skip the shadow call completely
5320 * if euid != 0 but in practice we cannot know which
5321 * security measures are guarding the shadow databases
5322 * on a random platform.
5323 *
5324 * Resist the urge to use additional shadow interfaces.
5325 * Divert the urge to writing an extension instead.
5326 *
5327 * --jhi */
ee87c6cb
JH		 5328 /* Some AIX setups falsely(?) detect some getspnam(), which
5329 * has a different API than the Solaris/IRIX one. */
5330# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5331 {
5332 struct spwd *spwent;
5333 int saverrno; /* Save and restore errno so that
5334 * underprivileged attempts seem
5335 * to have never made the unsccessful
5336 * attempt to retrieve the shadow password. */
5337
5338 saverrno = errno;
5339 spwent = getspnam(pwent->pw_name);
5340 errno = saverrno;
5341 if (spwent && spwent->sp_pwdp)
5342 sv_setpv(sv, spwent->sp_pwdp);
5343 }
f1066039 5344# endif
e020c87d 5345# ifdef PWPASSWD
3813c136
JH		 5346 if (!SvPOK(sv)) /* Use the standard password, then. */
5347 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5348# endif
3813c136 5349
1883634f 5350# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5351 /* passwd is tainted because user himself can diddle with it.
5352 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5353 SvTAINTED_on(sv);
1883634f 5354# endif
6ee623d5 5355
3280af22 5356 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5357# if Uid_t_sign <= 0
1e422769 5358 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5359# else
23dcd6c8 5360 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5361# endif
6ee623d5 5362
3280af22 5363 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5364# if Uid_t_sign <= 0
1e422769 5365 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5366# else
23dcd6c8 5367 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5368# endif
3813c136
JH		 5369 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5370 * because of the poor interface of the Perl getpw*(),
5371 * not because there's some standard/convention saying so.
5372 * A better interface would have been to return a hash,
5373 * but we are accursed by our history, alas. --jhi. */
3280af22 5374 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5375# ifdef PWCHANGE
1e422769 5376 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5377# else
1883634f
JH		 5378# ifdef PWQUOTA
5379 sv_setiv(sv, (IV)pwent->pw_quota);
5380# else
a1757be1 5381# ifdef PWAGE
a0d0e21e 5382 sv_setpv(sv, pwent->pw_age);
a1757be1 5383# endif
6ee623d5
GS		 5384# endif
5385# endif
6ee623d5 5386
3813c136
JH		 5387 /* pw_class and pw_comment are mutually exclusive--.
5388 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5389 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5390# ifdef PWCLASS
a0d0e21e 5391 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5392# else
5393# ifdef PWCOMMENT
a0d0e21e 5394 sv_setpv(sv, pwent->pw_comment);
1883634f 5395# endif
6ee623d5 5396# endif
6ee623d5 5397
3280af22 5398 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5399# ifdef PWGECOS
a0d0e21e 5400 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5401# endif
5402# ifndef INCOMPLETE_TAINTS
d2719217 5403 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5404 SvTAINTED_on(sv);
1883634f 5405# endif
6ee623d5 5406
3280af22 5407 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5408 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5409
3280af22 5410 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5411 sv_setpv(sv, pwent->pw_shell);
1883634f 5412# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5413 /* pw_shell is tainted because user himself can diddle with it. */
5414 SvTAINTED_on(sv);
1883634f 5415# endif
6ee623d5 5416
1883634f 5417# ifdef PWEXPIRE
6b88bc9c 5418 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5419 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5420# endif
a0d0e21e
LW		 5421 }
5422 RETURN;
5423#else
cea2e8a9 5424 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5425#endif
5426}
5427
5428PP(pp_spwent)
5429{
d493b042 5430#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5431 dSP;
a0d0e21e
LW		 5432 setpwent();
5433 RETPUSHYES;
5434#else
cea2e8a9 5435 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5436#endif
5437}
5438
5439PP(pp_epwent)
5440{
28e8609d 5441#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5442 dSP;
a0d0e21e
LW		 5443 endpwent();
5444 RETPUSHYES;
5445#else
cea2e8a9 5446 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5447#endif
5448}
5449
5450PP(pp_ggrnam)
5451{
5452#ifdef HAS_GROUP
cea2e8a9 5453 return pp_ggrent();
a0d0e21e 5454#else
cea2e8a9 5455 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5456#endif
5457}
5458
5459PP(pp_ggrgid)
5460{
5461#ifdef HAS_GROUP
cea2e8a9 5462 return pp_ggrent();
a0d0e21e 5463#else
cea2e8a9 5464 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5465#endif
5466}
5467
5468PP(pp_ggrent)
5469{
0994c4d0 5470#ifdef HAS_GROUP
9cad6237 5471 dSP;
533c011a 5472 I32 which = PL_op->op_type;
a0d0e21e
LW		 5473 register char **elem;
5474 register SV *sv;
5475 struct group *grent;
2d8e6c8d 5476 STRLEN n_a;
a0d0e21e 5477
edd309b7
JH		 5478 if (which == OP_GGRNAM) {
5479 char* name = POPpbytex;
5480 grent = (struct group *)getgrnam(name);
5481 }
5482 else if (which == OP_GGRGID) {
5483 Gid_t gid = POPi;
5484 grent = (struct group *)getgrgid(gid);
5485 }
a0d0e21e 5486 else
0994c4d0 5487#ifdef HAS_GETGRENT
a0d0e21e 5488 grent = (struct group *)getgrent();
0994c4d0
JH		 5489#else
5490 DIE(aTHX_ PL_no_func, "getgrent");
5491#endif
a0d0e21e
LW		 5492
5493 EXTEND(SP, 4);
5494 if (GIMME != G_ARRAY) {
5495 PUSHs(sv = sv_newmortal());
5496 if (grent) {
5497 if (which == OP_GGRNAM)
1e422769 5498 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5499 else
5500 sv_setpv(sv, grent->gr_name);
5501 }
5502 RETURN;
5503 }
5504
5505 if (grent) {
3280af22 5506 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5507 sv_setpv(sv, grent->gr_name);
28e8609d 5508
3280af22 5509 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5510#ifdef GRPASSWD
a0d0e21e 5511 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5512#endif
5513
3280af22 5514 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5515 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5516
5b56e7c5 5517#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5518 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5519 /* In UNICOS/mk (_CRAYMPP) the multithreading
5520 * versions (getgrnam_r, getgrgid_r)
5521 * seem to return an illegal pointer
5522 * as the group members list, gr_mem.
5523 * getgrent() doesn't even have a _r version
5524 * but the gr_mem is poisonous anyway.
5525 * So yes, you cannot get the list of group
5526 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5527 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5528 sv_catpv(sv, *elem);
5529 if (elem[1])
5530 sv_catpvn(sv, " ", 1);
5531 }
3d7e8424 5532#endif
a0d0e21e
LW		 5533 }
5534
5535 RETURN;
5536#else
cea2e8a9 5537 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5538#endif
5539}
5540
5541PP(pp_sgrent)
5542{
28e8609d 5543#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5544 dSP;
a0d0e21e
LW		 5545 setgrent();
5546 RETPUSHYES;
5547#else
cea2e8a9 5548 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5549#endif
5550}
5551
5552PP(pp_egrent)
5553{
28e8609d 5554#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5555 dSP;
a0d0e21e
LW		 5556 endgrent();
5557 RETPUSHYES;
5558#else
cea2e8a9 5559 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5560#endif
5561}
5562
5563PP(pp_getlogin)
5564{
a0d0e21e 5565#ifdef HAS_GETLOGIN
9cad6237 5566 dSP; dTARGET;
a0d0e21e
LW		 5567 char *tmps;
5568 EXTEND(SP, 1);
76e3520e 5569 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5570 RETPUSHUNDEF;
5571 PUSHp(tmps, strlen(tmps));
5572 RETURN;
5573#else
cea2e8a9 5574 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5575#endif
5576}
5577
5578/* Miscellaneous. */
5579
5580PP(pp_syscall)
5581{
d2719217 5582#ifdef HAS_SYSCALL
39644a26 5583 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5584 register I32 items = SP - MARK;
5585 unsigned long a[20];
5586 register I32 i = 0;
5587 I32 retval = -1;
2d8e6c8d 5588 STRLEN n_a;
a0d0e21e 5589
3280af22 5590 if (PL_tainting) {
a0d0e21e 5591 while (++MARK <= SP) {
bbce6d69 5592 if (SvTAINTED(*MARK)) {
5593 TAINT;
5594 break;
5595 }
a0d0e21e
LW		 5596 }
5597 MARK = ORIGMARK;
5598 TAINT_PROPER("syscall");
5599 }
5600
5601 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5602 * or where sizeof(long) != sizeof(char*). But such machines will
5603 * not likely have syscall implemented either, so who cares?
5604 */
5605 while (++MARK <= SP) {
5606 if (SvNIOK(*MARK) || !i)
5607 a[i++] = SvIV(*MARK);
3280af22 5608 else if (*MARK == &PL_sv_undef)
748a9306 5609 a[i++] = 0;
301e8125 5610 else
2d8e6c8d 5611 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5612 if (i > 15)
5613 break;
5614 }
5615 switch (items) {
5616 default:
cea2e8a9 5617 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5618 case 0:
cea2e8a9 5619 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5620 case 1:
5621 retval = syscall(a[0]);
5622 break;
5623 case 2:
5624 retval = syscall(a[0],a[1]);
5625 break;
5626 case 3:
5627 retval = syscall(a[0],a[1],a[2]);
5628 break;
5629 case 4:
5630 retval = syscall(a[0],a[1],a[2],a[3]);
5631 break;
5632 case 5:
5633 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5634 break;
5635 case 6:
5636 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5637 break;
5638 case 7:
5639 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5640 break;
5641 case 8:
5642 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5643 break;
5644#ifdef atarist
5645 case 9:
5646 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5647 break;
5648 case 10:
5649 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5650 break;
5651 case 11:
5652 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5653 a[10]);
5654 break;
5655 case 12:
5656 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5657 a[10],a[11]);
5658 break;
5659 case 13:
5660 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5661 a[10],a[11],a[12]);
5662 break;
5663 case 14:
5664 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5665 a[10],a[11],a[12],a[13]);
5666 break;
5667#endif /* atarist */
5668 }
5669 SP = ORIGMARK;
5670 PUSHi(retval);
5671 RETURN;
5672#else
cea2e8a9 5673 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5674#endif
5675}
5676
ff68c719 5677#ifdef FCNTL_EMULATE_FLOCK
301e8125 5678
ff68c719 5679/* XXX Emulate flock() with fcntl().
5680 What's really needed is a good file locking module.
5681*/
5682
cea2e8a9
GS		 5683static int
5684fcntl_emulate_flock(int fd, int operation)
ff68c719 5685{
5686 struct flock flock;
301e8125 5687
ff68c719 5688 switch (operation & ~LOCK_NB) {
5689 case LOCK_SH:
5690 flock.l_type = F_RDLCK;
5691 break;
5692 case LOCK_EX:
5693 flock.l_type = F_WRLCK;
5694 break;
5695 case LOCK_UN:
5696 flock.l_type = F_UNLCK;
5697 break;
5698 default:
5699 errno = EINVAL;
5700 return -1;
5701 }
5702 flock.l_whence = SEEK_SET;
d9b3e12d 5703 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5704
ff68c719 5705 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5706}
5707
5708#endif /* FCNTL_EMULATE_FLOCK */
5709
5710#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5711
5712/* XXX Emulate flock() with lockf(). This is just to increase
5713 portability of scripts. The calls are not completely
5714 interchangeable. What's really needed is a good file
5715 locking module.
5716*/
5717
76c32331 5718/* The lockf() constants might have been defined in <unistd.h>.
5719 Unfortunately, <unistd.h> causes troubles on some mixed
5720 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5721
5722 Further, the lockf() constants aren't POSIX, so they might not be
5723 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5724 just stick in the SVID values and be done with it. Sigh.
5725*/
5726
5727# ifndef F_ULOCK
5728# define F_ULOCK 0 /* Unlock a previously locked region */
5729# endif
5730# ifndef F_LOCK
5731# define F_LOCK 1 /* Lock a region for exclusive use */
5732# endif
5733# ifndef F_TLOCK
5734# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5735# endif
5736# ifndef F_TEST
5737# define F_TEST 3 /* Test a region for other processes locks */
5738# endif
5739
cea2e8a9
GS		 5740static int
5741lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5742{
5743 int i;
84902520
TB		 5744 int save_errno;
5745 Off_t pos;
5746
5747 /* flock locks entire file so for lockf we need to do the same */
5748 save_errno = errno;
6ad3d225 5749 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5750 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5751 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5752 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5753 errno = save_errno;
5754
16d20bd9
AD		 5755 switch (operation) {
5756
5757 /* LOCK_SH - get a shared lock */
5758 case LOCK_SH:
5759 /* LOCK_EX - get an exclusive lock */
5760 case LOCK_EX:
5761 i = lockf (fd, F_LOCK, 0);
5762 break;
5763
5764 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5765 case LOCK_SH|LOCK_NB:
5766 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5767 case LOCK_EX|LOCK_NB:
5768 i = lockf (fd, F_TLOCK, 0);
5769 if (i == -1)
5770 if ((errno == EAGAIN) || (errno == EACCES))
5771 errno = EWOULDBLOCK;
5772 break;
5773
ff68c719 5774 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5775 case LOCK_UN:
ff68c719 5776 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5777 i = lockf (fd, F_ULOCK, 0);
5778 break;
5779
5780 /* Default - can't decipher operation */
5781 default:
5782 i = -1;
5783 errno = EINVAL;
5784 break;
5785 }
84902520
TB		 5786
5787 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5788 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5789
16d20bd9
AD		 5790 return (i);
5791}
ff68c719 5792
5793#endif /* LOCKF_EMULATE_FLOCK */
583439ab
NC		 5794
5795/*
5796 * Local variables:
5797 * c-indentation-style: bsd
5798 * c-basic-offset: 4
5799 * indent-tabs-mode: t
5800 * End:
5801 *
5802 * vim: shiftwidth=4:
5803*/
Unnamed repository; edit this file 'description' to name the repository.