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[perl5.git] / pp_sys.c
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a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
b5f8cc5c 4 * 2000, 2001, 2002, 2003, 2004, 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
18#include "EXTERN.h"
864dbfa3 19#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 20#include "perl.h"
21
f1066039
JH		 22#ifdef I_SHADOW
23/* Shadow password support for solaris - pdo@cs.umd.edu
24 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 25 * The API is from SysV.
26 *
27 * There are at least two more shadow interfaces,
28 * see the comments in pp_gpwent().
29 *
30 * --jhi */
31# ifdef __hpux__
c529f79d 32/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 33 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 34# undef MAXINT
35# endif
36# include <shadow.h>
8c0bfa08
PB		 37#endif
38
301e8125
NIS		 39#ifdef HAS_SYSCALL
40#ifdef __cplusplus
8ac85365
NIS		 41extern "C" int syscall(unsigned long,...);
42#endif
43#endif
44
76c32331 45#ifdef I_SYS_WAIT
46# include <sys/wait.h>
47#endif
48
49#ifdef I_SYS_RESOURCE
50# include <sys/resource.h>
16d20bd9 51#endif
a0d0e21e 52
2986a63f
JH		 53#ifdef NETWARE
54NETDB_DEFINE_CONTEXT
55#endif
56
a0d0e21e 57#ifdef HAS_SELECT
1e743fda
JH		 58# ifdef I_SYS_SELECT
59# include <sys/select.h>
60# endif
a0d0e21e 61#endif
a0d0e21e 62
dc45a647
MB		 63/* XXX Configure test needed.
64 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 65 applications, see "extern int errno in perl.h". Creating such
66 a test requires taking into account the differences between
67 compiling multithreaded and singlethreaded ($ccflags et al).
68 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 69*/
cb50131a 70#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 71extern int h_errno;
72#endif
73
74#ifdef HAS_PASSWD
75# ifdef I_PWD
76# include <pwd.h>
77# else
fd8cd3a3 78# if !defined(VMS)
20ce7b12
GS		 79 struct passwd *getpwnam (char *);
80 struct passwd *getpwuid (Uid_t);
fd8cd3a3 81# endif
a0d0e21e 82# endif
28e8609d 83# ifdef HAS_GETPWENT
10bc17b6 84#ifndef getpwent
20ce7b12 85 struct passwd *getpwent (void);
c2a8f790
JH		 86#elif defined (VMS) && defined (my_getpwent)
87 struct passwd *Perl_my_getpwent (void);
10bc17b6 88#endif
28e8609d 89# endif
a0d0e21e
LW		 90#endif
91
92#ifdef HAS_GROUP
93# ifdef I_GRP
94# include <grp.h>
95# else
20ce7b12
GS		 96 struct group *getgrnam (char *);
97 struct group *getgrgid (Gid_t);
a0d0e21e 98# endif
28e8609d 99# ifdef HAS_GETGRENT
10bc17b6 100#ifndef getgrent
20ce7b12 101 struct group *getgrent (void);
10bc17b6 102#endif
28e8609d 103# endif
a0d0e21e
LW		 104#endif
105
106#ifdef I_UTIME
3730b96e 107# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 108# include <sys/utime.h>
109# else
110# include <utime.h>
111# endif
a0d0e21e 112#endif
a0d0e21e 113
cbdc8872 114#ifdef HAS_CHSIZE
cd52b7b2 115# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
116# undef my_chsize
117# endif
6ad3d225 118# define my_chsize PerlLIO_chsize
cbdc8872 119#endif
120
ff68c719 121#ifdef HAS_FLOCK
122# define FLOCK flock
123#else /* no flock() */
124
36477c24 125 /* fcntl.h might not have been included, even if it exists, because
126 the current Configure only sets I_FCNTL if it's needed to pick up
127 the *_OK constants. Make sure it has been included before testing
128 the fcntl() locking constants. */
129# if defined(HAS_FCNTL) && !defined(I_FCNTL)
130# include <fcntl.h>
131# endif
132
9d9004a9 133# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 134# define FLOCK fcntl_emulate_flock
135# define FCNTL_EMULATE_FLOCK
136# else /* no flock() or fcntl(F_SETLK,...) */
137# ifdef HAS_LOCKF
138# define FLOCK lockf_emulate_flock
139# define LOCKF_EMULATE_FLOCK
140# endif /* lockf */
141# endif /* no flock() or fcntl(F_SETLK,...) */
142
143# ifdef FLOCK
20ce7b12 144 static int FLOCK (int, int);
ff68c719 145
146 /*
147 * These are the flock() constants. Since this sytems doesn't have
148 * flock(), the values of the constants are probably not available.
149 */
150# ifndef LOCK_SH
151# define LOCK_SH 1
152# endif
153# ifndef LOCK_EX
154# define LOCK_EX 2
155# endif
156# ifndef LOCK_NB
157# define LOCK_NB 4
158# endif
159# ifndef LOCK_UN
160# define LOCK_UN 8
161# endif
162# endif /* emulating flock() */
163
164#endif /* no flock() */
55497cff 165
85ab1d1d
JH		 166#define ZBTLEN 10
167static char zero_but_true[ZBTLEN + 1] = "0 but true";
168
5ff3f7a4
GS		 169#if defined(I_SYS_ACCESS) && !defined(R_OK)
170# include <sys/access.h>
171#endif
172
c529f79d
CB		 173#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
174# define FD_CLOEXEC 1 /* NeXT needs this */
175#endif
176
a4af207c
JH		 177#include "reentr.h"
178
9cffb111
OS		 179#ifdef __Lynx__
180/* Missing protos on LynxOS */
181void sethostent(int);
182void endhostent(void);
183void setnetent(int);
184void endnetent(void);
185void setprotoent(int);
186void endprotoent(void);
187void setservent(int);
188void endservent(void);
189#endif
190
5ff3f7a4
GS		 191#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
192#undef PERL_EFF_ACCESS_W_OK
193#undef PERL_EFF_ACCESS_X_OK
194
195/* F_OK unused: if stat() cannot find it... */
196
197#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 198 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 199# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
200# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
201# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
202#endif
203
204#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 205# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 206# include <sys/security.h>
207# endif
c955f117
JH		 208# ifdef ACC_SELF
209 /* HP SecureWare */
210# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
211# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
212# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
213# else
214 /* SCO */
215# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
216# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
217# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
218# endif
5ff3f7a4
GS		 219#endif
220
221#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 222 /* AIX */
5ff3f7a4
GS		 223# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
224# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
225# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
226#endif
227
327c3667
GS		 228#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
229 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
230 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 231/* The Hard Way. */
327c3667 232STATIC int
7f4774ae 233S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 234{
5ff3f7a4
GS		 235 Uid_t ruid = getuid();
236 Uid_t euid = geteuid();
237 Gid_t rgid = getgid();
238 Gid_t egid = getegid();
239 int res;
240
146174a9 241 LOCK_CRED_MUTEX;
5ff3f7a4 242#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 243 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 244#else
245#ifdef HAS_SETREUID
246 if (setreuid(euid, ruid))
247#else
248#ifdef HAS_SETRESUID
249 if (setresuid(euid, ruid, (Uid_t)-1))
250#endif
251#endif
cea2e8a9 252 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 253#endif
254
255#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 256 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 257#else
258#ifdef HAS_SETREGID
259 if (setregid(egid, rgid))
260#else
261#ifdef HAS_SETRESGID
262 if (setresgid(egid, rgid, (Gid_t)-1))
263#endif
264#endif
cea2e8a9 265 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 266#endif
267
268 res = access(path, mode);
269
270#ifdef HAS_SETREUID
271 if (setreuid(ruid, euid))
272#else
273#ifdef HAS_SETRESUID
274 if (setresuid(ruid, euid, (Uid_t)-1))
275#endif
276#endif
cea2e8a9 277 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 278
279#ifdef HAS_SETREGID
280 if (setregid(rgid, egid))
281#else
282#ifdef HAS_SETRESGID
283 if (setresgid(rgid, egid, (Gid_t)-1))
284#endif
285#endif
cea2e8a9 286 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 287 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 288
289 return res;
290}
291# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
292# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
293# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
294#endif
295
296#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 297/* With it or without it: anyway you get a warning: either that
298 it is unused, or it is declared static and never defined.
299 */
327c3667 300STATIC int
7f4774ae 301S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 302{
cea2e8a9 303 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 304 /*NOTREACHED*/
305 return -1;
306}
307#endif
308
a0d0e21e
LW		 309PP(pp_backtick)
310{
39644a26 311 dSP; dTARGET;
760ac839 312 PerlIO *fp;
2d8e6c8d
GS		 313 STRLEN n_a;
314 char *tmps = POPpx;
54310121 315 I32 gimme = GIMME_V;
16fe6d59 316 char *mode = "r";
54310121 317
a0d0e21e 318 TAINT_PROPER("``");
16fe6d59
GS		 319 if (PL_op->op_private & OPpOPEN_IN_RAW)
320 mode = "rb";
321 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
322 mode = "rt";
323 fp = PerlProc_popen(tmps, mode);
a0d0e21e 324 if (fp) {
ac27b0f5
NIS		 325 char *type = NULL;
326 if (PL_curcop->cop_io) {
327 type = SvPV_nolen(PL_curcop->cop_io);
328 }
ac27b0f5
NIS		 329 if (type && *type)
330 PerlIO_apply_layers(aTHX_ fp,mode,type);
331
54310121 332 if (gimme == G_VOID) {
96827780
MB		 333 char tmpbuf[256];
334 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 335 /*SUPPRESS 530*/
336 ;
337 }
338 else if (gimme == G_SCALAR) {
fa326138
RG		 339 SV *oldrs = PL_rs;
340 PL_rs = &PL_sv_undef;
aa689395 341 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 342 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
343 /*SUPPRESS 530*/
344 ;
fa326138 345 PL_rs = oldrs;
a0d0e21e 346 XPUSHs(TARG);
aa689395 347 SvTAINTED_on(TARG);
a0d0e21e
LW		 348 }
349 else {
350 SV *sv;
351
352 for (;;) {
8d6dde3e 353 sv = NEWSV(56, 79);
a0d0e21e
LW		 354 if (sv_gets(sv, fp, 0) == Nullch) {
355 SvREFCNT_dec(sv);
356 break;
357 }
358 XPUSHs(sv_2mortal(sv));
359 if (SvLEN(sv) - SvCUR(sv) > 20) {
360 SvLEN_set(sv, SvCUR(sv)+1);
361 Renew(SvPVX(sv), SvLEN(sv), char);
362 }
aa689395 363 SvTAINTED_on(sv);
a0d0e21e
LW		 364 }
365 }
6ad3d225 366 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 367 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 368 }
369 else {
f86702cc 370 STATUS_NATIVE_SET(-1);
54310121 371 if (gimme == G_SCALAR)
a0d0e21e
LW		 372 RETPUSHUNDEF;
373 }
374
375 RETURN;
376}
377
378PP(pp_glob)
379{
380 OP *result;
f5284f61
IZ		 381 tryAMAGICunTARGET(iter, -1);
382
71686f12
GS		 383 /* Note that we only ever get here if File::Glob fails to load
384 * without at the same time croaking, for some reason, or if
385 * perl was built with PERL_EXTERNAL_GLOB */
386
a0d0e21e 387 ENTER;
a0d0e21e 388
c90c0ff4 389#ifndef VMS
3280af22 390 if (PL_tainting) {
7bac28a0 391 /*
392 * The external globbing program may use things we can't control,
393 * so for security reasons we must assume the worst.
394 */
395 TAINT;
22c35a8c 396 taint_proper(PL_no_security, "glob");
7bac28a0 397 }
c90c0ff4 398#endif /* !VMS */
7bac28a0 399
3280af22
NIS		 400 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
401 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 402
3280af22 403 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 404 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 405#ifndef DOSISH
406#ifndef CSH
6b88bc9c 407 *SvPVX(PL_rs) = '\n';
a0d0e21e 408#endif /* !CSH */
55497cff 409#endif /* !DOSISH */
c07a80fd 410
a0d0e21e
LW		 411 result = do_readline();
412 LEAVE;
413 return result;
414}
415
a0d0e21e
LW		 416PP(pp_rcatline)
417{
146174a9 418 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 419 return do_readline();
420}
421
422PP(pp_warn)
423{
39644a26 424 dSP; dMARK;
06bf62c7 425 SV *tmpsv;
a0d0e21e 426 char *tmps;
06bf62c7 427 STRLEN len;
a0d0e21e
LW		 428 if (SP - MARK != 1) {
429 dTARGET;
3280af22 430 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 431 tmpsv = TARG;
a0d0e21e
LW		 432 SP = MARK + 1;
433 }
434 else {
06bf62c7 435 tmpsv = TOPs;
a0d0e21e 436 }
06bf62c7 437 tmps = SvPV(tmpsv, len);
7b102d90 438 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 439 SV *error = ERRSV;
440 (void)SvUPGRADE(error, SVt_PV);
441 if (SvPOK(error) && SvCUR(error))
442 sv_catpv(error, "\t...caught");
06bf62c7
GS		 443 tmpsv = error;
444 tmps = SvPV(tmpsv, len);
a0d0e21e 445 }
06bf62c7
GS		 446 if (!tmps || !len)
447 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
448
cb50131a 449 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 450 RETSETYES;
451}
452
453PP(pp_die)
454{
39644a26 455 dSP; dMARK;
a0d0e21e 456 char *tmps;
06bf62c7
GS		 457 SV *tmpsv;
458 STRLEN len;
459 bool multiarg = 0;
96e176bf
CL		 460#ifdef VMS
461 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
462#endif
a0d0e21e
LW		 463 if (SP - MARK != 1) {
464 dTARGET;
3280af22 465 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 466 tmpsv = TARG;
467 tmps = SvPV(tmpsv, len);
468 multiarg = 1;
a0d0e21e
LW		 469 SP = MARK + 1;
470 }
471 else {
4e6ea2c3 472 tmpsv = TOPs;
bf12611a 473 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 474 }
06bf62c7 475 if (!tmps || !len) {
4e6ea2c3
GS		 476 SV *error = ERRSV;
477 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 478 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
479 if (!multiarg)
4e6ea2c3 480 SvSetSV(error,tmpsv);
06bf62c7 481 else if (sv_isobject(error)) {
05423cc9
GS		 482 HV *stash = SvSTASH(SvRV(error));
483 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
484 if (gv) {
146174a9 485 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 486 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 487 EXTEND(SP, 3);
488 PUSHMARK(SP);
489 PUSHs(error);
490 PUSHs(file);
491 PUSHs(line);
492 PUTBACK;
864dbfa3
GS		 493 call_sv((SV*)GvCV(gv),
494 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 495 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 496 }
497 }
b3fe4827 498 DIE(aTHX_ Nullformat);
4e6ea2c3
GS		 499 }
500 else {
501 if (SvPOK(error) && SvCUR(error))
502 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 503 tmpsv = error;
504 tmps = SvPV(tmpsv, len);
4e6ea2c3 505 }
a0d0e21e 506 }
06bf62c7
GS		 507 if (!tmps || !len)
508 tmpsv = sv_2mortal(newSVpvn("Died", 4));
509
cb50131a 510 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 511}
512
513/* I/O. */
514
515PP(pp_open)
516{
39644a26 517 dSP;
a567e93b
NIS		 518 dMARK; dORIGMARK;
519 dTARGET;
a0d0e21e
LW		 520 GV *gv;
521 SV *sv;
5b468f54 522 IO *io;
a0d0e21e
LW		 523 char *tmps;
524 STRLEN len;
4592e6ca 525 MAGIC *mg;
a567e93b 526 bool ok;
a0d0e21e 527
a567e93b 528 gv = (GV *)*++MARK;
5f05dabc 529 if (!isGV(gv))
cea2e8a9 530 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 531 if ((io = GvIOp(gv)))
36477c24 532 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 533
5b468f54 534 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 535 /* Method's args are same as ours ... */
536 /* ... except handle is replaced by the object */
5b468f54 537 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 538 PUSHMARK(MARK);
4592e6ca
NIS		 539 PUTBACK;
540 ENTER;
864dbfa3 541 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 542 LEAVE;
543 SPAGAIN;
544 RETURN;
545 }
546
a567e93b
NIS		 547 if (MARK < SP) {
548 sv = *++MARK;
549 }
550 else {
551 sv = GvSV(gv);
552 }
553
a0d0e21e 554 tmps = SvPV(sv, len);
a567e93b
NIS		 555 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
556 SP = ORIGMARK;
557 if (ok)
3280af22
NIS		 558 PUSHi( (I32)PL_forkprocess );
559 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 560 PUSHi(0);
561 else
562 RETPUSHUNDEF;
563 RETURN;
564}
565
566PP(pp_close)
567{
39644a26 568 dSP;
a0d0e21e 569 GV *gv;
5b468f54 570 IO *io;
1d603a67 571 MAGIC *mg;
a0d0e21e
LW		 572
573 if (MAXARG == 0)
3280af22 574 gv = PL_defoutgv;
a0d0e21e
LW		 575 else
576 gv = (GV*)POPs;
1d603a67 577
5b468f54
AMS		 578 if (gv && (io = GvIO(gv))
579 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
580 {
1d603a67 581 PUSHMARK(SP);
5b468f54 582 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 583 PUTBACK;
584 ENTER;
864dbfa3 585 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 586 LEAVE;
587 SPAGAIN;
588 RETURN;
589 }
a0d0e21e 590 EXTEND(SP, 1);
54310121 591 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 592 RETURN;
593}
594
595PP(pp_pipe_op)
596{
a0d0e21e 597#ifdef HAS_PIPE
9cad6237 598 dSP;
a0d0e21e
LW		 599 GV *rgv;
600 GV *wgv;
601 register IO *rstio;
602 register IO *wstio;
603 int fd[2];
604
605 wgv = (GV*)POPs;
606 rgv = (GV*)POPs;
607
608 if (!rgv || !wgv)
609 goto badexit;
610
4633a7c4 611 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 612 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 613 rstio = GvIOn(rgv);
614 wstio = GvIOn(wgv);
615
616 if (IoIFP(rstio))
617 do_close(rgv, FALSE);
618 if (IoIFP(wstio))
619 do_close(wgv, FALSE);
620
6ad3d225 621 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 622 goto badexit;
623
460c8493
IZ		 624 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
625 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 626 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 627 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 628 IoTYPE(rstio) = IoTYPE_RDONLY;
629 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 630
631 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 632 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 633 else PerlLIO_close(fd[0]);
760ac839 634 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 635 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 636 goto badexit;
637 }
4771b018
GS		 638#if defined(HAS_FCNTL) && defined(F_SETFD)
639 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
640 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
641#endif
a0d0e21e
LW		 642 RETPUSHYES;
643
644badexit:
645 RETPUSHUNDEF;
646#else
cea2e8a9 647 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 648#endif
649}
650
651PP(pp_fileno)
652{
39644a26 653 dSP; dTARGET;
a0d0e21e
LW		 654 GV *gv;
655 IO *io;
760ac839 656 PerlIO *fp;
4592e6ca
NIS		 657 MAGIC *mg;
658
a0d0e21e
LW		 659 if (MAXARG < 1)
660 RETPUSHUNDEF;
661 gv = (GV*)POPs;
4592e6ca 662
5b468f54
AMS		 663 if (gv && (io = GvIO(gv))
664 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
665 {
4592e6ca 666 PUSHMARK(SP);
5b468f54 667 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 668 PUTBACK;
669 ENTER;
864dbfa3 670 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 671 LEAVE;
672 SPAGAIN;
673 RETURN;
674 }
675
c289d2f7
JH		 676 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
677 /* Can't do this because people seem to do things like
678 defined(fileno($foo)) to check whether $foo is a valid fh.
679 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
680 report_evil_fh(gv, io, PL_op->op_type);
681 */
a0d0e21e 682 RETPUSHUNDEF;
c289d2f7
JH		 683 }
684
760ac839 685 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 686 RETURN;
687}
688
689PP(pp_umask)
690{
39644a26 691 dSP; dTARGET;
d7e492a4 692#ifdef HAS_UMASK
761237fe 693 Mode_t anum;
a0d0e21e 694
a0d0e21e 695 if (MAXARG < 1) {
6ad3d225
GS		 696 anum = PerlLIO_umask(0);
697 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 698 }
699 else
6ad3d225 700 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 701 TAINT_PROPER("umask");
702 XPUSHi(anum);
703#else
eec2d3df
GS		 704 /* Only DIE if trying to restrict permissions on `user' (self).
705 * Otherwise it's harmless and more useful to just return undef
706 * since 'group' and 'other' concepts probably don't exist here. */
707 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 708 DIE(aTHX_ "umask not implemented");
6b88bc9c 709 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 710#endif
711 RETURN;
712}
713
714PP(pp_binmode)
715{
39644a26 716 dSP;
a0d0e21e
LW		 717 GV *gv;
718 IO *io;
760ac839 719 PerlIO *fp;
4592e6ca 720 MAGIC *mg;
16fe6d59 721 SV *discp = Nullsv;
a0d0e21e
LW		 722
723 if (MAXARG < 1)
724 RETPUSHUNDEF;
60382766 725 if (MAXARG > 1) {
16fe6d59 726 discp = POPs;
60382766 727 }
a0d0e21e 728
301e8125 729 gv = (GV*)POPs;
4592e6ca 730
5b468f54
AMS		 731 if (gv && (io = GvIO(gv))
732 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
733 {
4592e6ca 734 PUSHMARK(SP);
5b468f54 735 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 736 if (discp)
737 XPUSHs(discp);
4592e6ca
NIS		 738 PUTBACK;
739 ENTER;
864dbfa3 740 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 741 LEAVE;
742 SPAGAIN;
743 RETURN;
744 }
a0d0e21e
LW		 745
746 EXTEND(SP, 1);
50f846a7 747 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 748 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
749 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 750 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 751 RETPUSHUNDEF;
752 }
a0d0e21e 753
40d98b49 754 PUTBACK;
60382766 755 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 756 (discp) ? SvPV_nolen(discp) : Nullch)) {
38af81ff
JH		 757 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
758 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
759 mode_from_discipline(discp),
760 (discp) ? SvPV_nolen(discp) : Nullch)) {
761 SPAGAIN;
762 RETPUSHUNDEF;
763 }
764 }
40d98b49 765 SPAGAIN;
a0d0e21e 766 RETPUSHYES;
40d98b49
JH		 767 }
768 else {
769 SPAGAIN;
a0d0e21e 770 RETPUSHUNDEF;
40d98b49 771 }
a0d0e21e
LW		 772}
773
774PP(pp_tie)
775{
39644a26 776 dSP;
e336de0d 777 dMARK;
a0d0e21e
LW		 778 SV *varsv;
779 HV* stash;
780 GV *gv;
a0d0e21e 781 SV *sv;
3280af22 782 I32 markoff = MARK - PL_stack_base;
a0d0e21e 783 char *methname;
14befaf4 784 int how = PERL_MAGIC_tied;
e336de0d 785 U32 items;
a0d0e21e 786
e336de0d 787 varsv = *++MARK;
6b05c17a
NIS		 788 switch(SvTYPE(varsv)) {
789 case SVt_PVHV:
790 methname = "TIEHASH";
03c6e78a 791 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 792 break;
793 case SVt_PVAV:
794 methname = "TIEARRAY";
795 break;
796 case SVt_PVGV:
7fb37951
AMS		 797#ifdef GV_UNIQUE_CHECK
798 if (GvUNIQUE((GV*)varsv)) {
799 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 800 }
801#endif
6b05c17a 802 methname = "TIEHANDLE";
14befaf4 803 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 804 /* For tied filehandles, we apply tiedscalar magic to the IO
805 slot of the GP rather than the GV itself. AMS 20010812 */
806 if (!GvIOp(varsv))
807 GvIOp(varsv) = newIO();
808 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 809 break;
810 default:
811 methname = "TIESCALAR";
14befaf4 812 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 813 break;
814 }
e336de0d
GS		 815 items = SP - MARK++;
816 if (sv_isobject(*MARK)) {
6b05c17a 817 ENTER;
e788e7d3 818 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 819 PUSHMARK(SP);
eb160463 820 EXTEND(SP,(I32)items);
e336de0d
GS		 821 while (items--)
822 PUSHs(*MARK++);
823 PUTBACK;
864dbfa3 824 call_method(methname, G_SCALAR);
301e8125 825 }
6b05c17a 826 else {
864dbfa3 827 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 828 * perhaps to get different error message ?
829 */
e336de0d 830 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 831 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 832 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
833 methname, *MARK);
6b05c17a
NIS		 834 }
835 ENTER;
e788e7d3 836 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 837 PUSHMARK(SP);
eb160463 838 EXTEND(SP,(I32)items);
e336de0d
GS		 839 while (items--)
840 PUSHs(*MARK++);
841 PUTBACK;
864dbfa3 842 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 843 }
a0d0e21e
LW		 844 SPAGAIN;
845
846 sv = TOPs;
d3acc0f7 847 POPSTACK;
a0d0e21e 848 if (sv_isobject(sv)) {
33c27489 849 sv_unmagic(varsv, how);
ae21d580 850 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 851 if (varsv == SvRV(sv) &&
d87ebaca
YST		 852 (SvTYPE(varsv) == SVt_PVAV ||
853 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 854 Perl_croak(aTHX_
855 "Self-ties of arrays and hashes are not supported");
d87ebaca 856 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 857 }
858 LEAVE;
3280af22 859 SP = PL_stack_base + markoff;
a0d0e21e
LW		 860 PUSHs(sv);
861 RETURN;
862}
863
864PP(pp_untie)
865{
39644a26 866 dSP;
5b468f54 867 MAGIC *mg;
33c27489 868 SV *sv = POPs;
14befaf4
DM		 869 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
870 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 871
5b468f54
AMS		 872 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
873 RETPUSHYES;
874
65eba18f
JH		 875 if ((mg = SvTIED_mg(sv, how))) {
876 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 877 GV *gv;
878 CV *cv = NULL;
fa2b88e0
JS		 879 if (obj) {
880 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
881 isGV(gv) && (cv = GvCV(gv))) {
882 PUSHMARK(SP);
883 XPUSHs(SvTIED_obj((SV*)gv, mg));
884 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
885 PUTBACK;
886 ENTER;
887 call_sv((SV *)cv, G_VOID);
888 LEAVE;
889 SPAGAIN;
890 }
891 else if (ckWARN(WARN_UNTIE)) {
892 if (mg && SvREFCNT(obj) > 1)
9014280d 893 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 894 "untie attempted while %"UVuf" inner references still exist",
895 (UV)SvREFCNT(obj) - 1 ) ;
896 }
cbdc8872 897 }
898 }
38193a09 899 sv_unmagic(sv, how) ;
55497cff 900 RETPUSHYES;
a0d0e21e
LW		 901}
902
c07a80fd 903PP(pp_tied)
904{
39644a26 905 dSP;
5b468f54 906 MAGIC *mg;
33c27489 907 SV *sv = POPs;
14befaf4
DM		 908 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
909 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 910
911 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
912 RETPUSHUNDEF;
c07a80fd 913
155aba94 914 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 915 SV *osv = SvTIED_obj(sv, mg);
916 if (osv == mg->mg_obj)
917 osv = sv_mortalcopy(osv);
918 PUSHs(osv);
919 RETURN;
c07a80fd 920 }
c07a80fd 921 RETPUSHUNDEF;
922}
923
a0d0e21e
LW		 924PP(pp_dbmopen)
925{
39644a26 926 dSP;
a0d0e21e
LW		 927 HV *hv;
928 dPOPPOPssrl;
929 HV* stash;
930 GV *gv;
a0d0e21e
LW		 931 SV *sv;
932
933 hv = (HV*)POPs;
934
3280af22 935 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 936 sv_setpv(sv, "AnyDBM_File");
937 stash = gv_stashsv(sv, FALSE);
8ebc5c01 938 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 939 PUTBACK;
864dbfa3 940 require_pv("AnyDBM_File.pm");
a0d0e21e 941 SPAGAIN;
8ebc5c01 942 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 943 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 944 }
945
57d3b86d 946 ENTER;
924508f0 947 PUSHMARK(SP);
6b05c17a 948
924508f0 949 EXTEND(SP, 5);
a0d0e21e
LW		 950 PUSHs(sv);
951 PUSHs(left);
952 if (SvIV(right))
b448e4fe 953 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 954 else
b448e4fe 955 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 956 PUSHs(right);
57d3b86d 957 PUTBACK;
864dbfa3 958 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 959 SPAGAIN;
960
961 if (!sv_isobject(TOPs)) {
924508f0
GS		 962 SP--;
963 PUSHMARK(SP);
a0d0e21e
LW		 964 PUSHs(sv);
965 PUSHs(left);
b448e4fe 966 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 967 PUSHs(right);
a0d0e21e 968 PUTBACK;
864dbfa3 969 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 970 SPAGAIN;
971 }
972
6b05c17a 973 if (sv_isobject(TOPs)) {
14befaf4
DM		 974 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
975 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 976 }
a0d0e21e
LW		 977 LEAVE;
978 RETURN;
979}
980
981PP(pp_dbmclose)
982{
cea2e8a9 983 return pp_untie();
a0d0e21e
LW		 984}
985
986PP(pp_sselect)
987{
a0d0e21e 988#ifdef HAS_SELECT
9cad6237 989 dSP; dTARGET;
a0d0e21e
LW		 990 register I32 i;
991 register I32 j;
992 register char *s;
993 register SV *sv;
65202027 994 NV value;
a0d0e21e
LW		 995 I32 maxlen = 0;
996 I32 nfound;
997 struct timeval timebuf;
998 struct timeval *tbuf = &timebuf;
999 I32 growsize;
1000 char *fd_sets[4];
2d8e6c8d 1001 STRLEN n_a;
a0d0e21e
LW		 1002#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1003 I32 masksize;
1004 I32 offset;
1005 I32 k;
1006
1007# if BYTEORDER & 0xf0000
1008# define ORDERBYTE (0x88888888 - BYTEORDER)
1009# else
1010# define ORDERBYTE (0x4444 - BYTEORDER)
1011# endif
1012
1013#endif
1014
1015 SP -= 4;
1016 for (i = 1; i <= 3; i++) {
1017 if (!SvPOK(SP[i]))
1018 continue;
1019 j = SvCUR(SP[i]);
1020 if (maxlen < j)
1021 maxlen = j;
1022 }
1023
5ff3f7a4 1024/* little endians can use vecs directly */
e366b469 1025#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1026# ifdef NFDBITS
a0d0e21e 1027
5ff3f7a4
GS		 1028# ifndef NBBY
1029# define NBBY 8
1030# endif
a0d0e21e
LW		 1031
1032 masksize = NFDBITS / NBBY;
5ff3f7a4 1033# else
a0d0e21e 1034 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1035# endif
a0d0e21e
LW		 1036 Zero(&fd_sets[0], 4, char*);
1037#endif
1038
ad517f75
MHM		 1039# if SELECT_MIN_BITS == 1
1040 growsize = sizeof(fd_set);
1041# else
1042# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1043# undef SELECT_MIN_BITS
1044# define SELECT_MIN_BITS __FD_SETSIZE
1045# endif
e366b469
PG		 1046 /* If SELECT_MIN_BITS is greater than one we most probably will want
1047 * to align the sizes with SELECT_MIN_BITS/8 because for example
1048 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1049 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1050 * on (sets/tests/clears bits) is 32 bits. */
1051 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1052# endif
1053
a0d0e21e
LW		 1054 sv = SP[4];
1055 if (SvOK(sv)) {
1056 value = SvNV(sv);
1057 if (value < 0.0)
1058 value = 0.0;
1059 timebuf.tv_sec = (long)value;
65202027 1060 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1061 timebuf.tv_usec = (long)(value * 1000000.0);
1062 }
1063 else
1064 tbuf = Null(struct timeval*);
1065
1066 for (i = 1; i <= 3; i++) {
1067 sv = SP[i];
1068 if (!SvOK(sv)) {
1069 fd_sets[i] = 0;
1070 continue;
1071 }
1072 else if (!SvPOK(sv))
2d8e6c8d 1073 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1074 j = SvLEN(sv);
1075 if (j < growsize) {
1076 Sv_Grow(sv, growsize);
a0d0e21e 1077 }
c07a80fd 1078 j = SvCUR(sv);
1079 s = SvPVX(sv) + j;
1080 while (++j <= growsize) {
1081 *s++ = '\0';
1082 }
1083
a0d0e21e
LW		 1084#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1085 s = SvPVX(sv);
1086 New(403, fd_sets[i], growsize, char);
1087 for (offset = 0; offset < growsize; offset += masksize) {
1088 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1089 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1090 }
1091#else
1092 fd_sets[i] = SvPVX(sv);
1093#endif
1094 }
1095
dc4c69d9
JH		 1096#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1097 /* Can't make just the (void*) conditional because that would be
1098 * cpp #if within cpp macro, and not all compilers like that. */
1099 nfound = PerlSock_select(
1100 maxlen * 8,
1101 (Select_fd_set_t) fd_sets[1],
1102 (Select_fd_set_t) fd_sets[2],
1103 (Select_fd_set_t) fd_sets[3],
1104 (void*) tbuf); /* Workaround for compiler bug. */
1105#else
6ad3d225 1106 nfound = PerlSock_select(
a0d0e21e
LW		 1107 maxlen * 8,
1108 (Select_fd_set_t) fd_sets[1],
1109 (Select_fd_set_t) fd_sets[2],
1110 (Select_fd_set_t) fd_sets[3],
1111 tbuf);
dc4c69d9 1112#endif
a0d0e21e
LW		 1113 for (i = 1; i <= 3; i++) {
1114 if (fd_sets[i]) {
1115 sv = SP[i];
1116#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1117 s = SvPVX(sv);
1118 for (offset = 0; offset < growsize; offset += masksize) {
1119 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1120 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1121 }
1122 Safefree(fd_sets[i]);
1123#endif
1124 SvSETMAGIC(sv);
1125 }
1126 }
1127
1128 PUSHi(nfound);
1129 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1130 value = (NV)(timebuf.tv_sec) +
1131 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1132 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1133 sv_setnv(sv, value);
1134 }
1135 RETURN;
1136#else
cea2e8a9 1137 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1138#endif
1139}
1140
4633a7c4 1141void
864dbfa3 1142Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1143{
1144 if (gv)
1145 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1146 if (PL_defoutgv)
1147 SvREFCNT_dec(PL_defoutgv);
1148 PL_defoutgv = gv;
4633a7c4
LW		 1149}
1150
a0d0e21e
LW		 1151PP(pp_select)
1152{
39644a26 1153 dSP; dTARGET;
4633a7c4
LW		 1154 GV *newdefout, *egv;
1155 HV *hv;
1156
533c011a 1157 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1158
3280af22 1159 egv = GvEGV(PL_defoutgv);
4633a7c4 1160 if (!egv)
3280af22 1161 egv = PL_defoutgv;
4633a7c4
LW		 1162 hv = GvSTASH(egv);
1163 if (! hv)
3280af22 1164 XPUSHs(&PL_sv_undef);
4633a7c4 1165 else {
cbdc8872 1166 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1167 if (gvp && *gvp == egv) {
f7aaccc2 1168 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1169 XPUSHTARG;
1170 }
1171 else {
1172 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1173 }
4633a7c4
LW		 1174 }
1175
1176 if (newdefout) {
ded8aa31
GS		 1177 if (!GvIO(newdefout))
1178 gv_IOadd(newdefout);
4633a7c4
LW		 1179 setdefout(newdefout);
1180 }
1181
a0d0e21e
LW		 1182 RETURN;
1183}
1184
1185PP(pp_getc)
1186{
39644a26 1187 dSP; dTARGET;
a0d0e21e 1188 GV *gv;
90133b69 1189 IO *io = NULL;
2ae324a7 1190 MAGIC *mg;
a0d0e21e 1191
32da55ab 1192 if (MAXARG == 0)
3280af22 1193 gv = PL_stdingv;
a0d0e21e
LW		 1194 else
1195 gv = (GV*)POPs;
2ae324a7 1196
5b468f54
AMS		 1197 if (gv && (io = GvIO(gv))
1198 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1199 {
54310121 1200 I32 gimme = GIMME_V;
2ae324a7 1201 PUSHMARK(SP);
5b468f54 1202 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1203 PUTBACK;
1204 ENTER;
864dbfa3 1205 call_method("GETC", gimme);
2ae324a7 1206 LEAVE;
1207 SPAGAIN;
54310121 1208 if (gimme == G_SCALAR)
1209 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1210 RETURN;
1211 }
90133b69 1212 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1213 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1214 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1215 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1216 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1217 RETPUSHUNDEF;
90133b69 1218 }
bbce6d69 1219 TAINT;
a0d0e21e 1220 sv_setpv(TARG, " ");
9bc64814 1221 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1222 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1223 /* Find out how many bytes the char needs */
1224 Size_t len = UTF8SKIP(SvPVX(TARG));
1225 if (len > 1) {
1226 SvGROW(TARG,len+1);
1227 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1228 SvCUR_set(TARG,1+len);
1229 }
1230 SvUTF8_on(TARG);
1231 }
a0d0e21e
LW		 1232 PUSHTARG;
1233 RETURN;
1234}
1235
1236PP(pp_read)
1237{
cea2e8a9 1238 return pp_sysread();
a0d0e21e
LW		 1239}
1240
76e3520e 1241STATIC OP *
cea2e8a9 1242S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1243{
c09156bb 1244 register PERL_CONTEXT *cx;
54310121 1245 I32 gimme = GIMME_V;
a0d0e21e
LW		 1246
1247 ENTER;
1248 SAVETMPS;
1249
1250 push_return(retop);
146174a9 1251 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1252 PUSHFORMAT(cx);
dd2155a4 1253 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1254
4633a7c4 1255 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1256 return CvSTART(cv);
1257}
1258
1259PP(pp_enterwrite)
1260{
39644a26 1261 dSP;
a0d0e21e
LW		 1262 register GV *gv;
1263 register IO *io;
1264 GV *fgv;
1265 CV *cv;
1266
1267 if (MAXARG == 0)
3280af22 1268 gv = PL_defoutgv;
a0d0e21e
LW		 1269 else {
1270 gv = (GV*)POPs;
1271 if (!gv)
3280af22 1272 gv = PL_defoutgv;
a0d0e21e
LW		 1273 }
1274 EXTEND(SP, 1);
1275 io = GvIO(gv);
1276 if (!io) {
1277 RETPUSHNO;
1278 }
1279 if (IoFMT_GV(io))
1280 fgv = IoFMT_GV(io);
1281 else
1282 fgv = gv;
1283
1284 cv = GvFORM(fgv);
a0d0e21e 1285 if (!cv) {
2dd78f96 1286 char *name = NULL;
a0d0e21e 1287 if (fgv) {
748a9306 1288 SV *tmpsv = sv_newmortal();
43693395 1289 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1290 name = SvPV_nolen(tmpsv);
a0d0e21e 1291 }
2dd78f96
JH		 1292 if (name && *name)
1293 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1294 DIE(aTHX_ "Not a format reference");
a0d0e21e 1295 }
44a8e56a 1296 if (CvCLONE(cv))
1297 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1298
44a8e56a 1299 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1300 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1301}
1302
1303PP(pp_leavewrite)
1304{
39644a26 1305 dSP;
a0d0e21e
LW		 1306 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1307 register IO *io = GvIOp(gv);
760ac839
LW		 1308 PerlIO *ofp = IoOFP(io);
1309 PerlIO *fp;
a0d0e21e
LW		 1310 SV **newsp;
1311 I32 gimme;
c09156bb 1312 register PERL_CONTEXT *cx;
a0d0e21e 1313
760ac839 1314 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1315 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1316 if (!io || !ofp)
1317 goto forget_top;
3280af22
NIS		 1318 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1319 PL_formtarget != PL_toptarget)
a0d0e21e 1320 {
4633a7c4
LW		 1321 GV *fgv;
1322 CV *cv;
a0d0e21e
LW		 1323 if (!IoTOP_GV(io)) {
1324 GV *topgv;
46fc3d4c 1325 SV *topname;
a0d0e21e
LW		 1326
1327 if (!IoTOP_NAME(io)) {
1328 if (!IoFMT_NAME(io))
1329 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1330 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
46fc3d4c 1331 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1332 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1333 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1334 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1335 else
1336 IoTOP_NAME(io) = savepv("top");
1337 }
1338 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1339 if (!topgv || !GvFORM(topgv)) {
1340 IoLINES_LEFT(io) = 100000000;
1341 goto forget_top;
1342 }
1343 IoTOP_GV(io) = topgv;
1344 }
748a9306
LW		 1345 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1346 I32 lines = IoLINES_LEFT(io);
3280af22 1347 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1348 if (lines <= 0) /* Yow, header didn't even fit!!! */
1349 goto forget_top;
748a9306
LW		 1350 while (lines-- > 0) {
1351 s = strchr(s, '\n');
1352 if (!s)
1353 break;
1354 s++;
1355 }
1356 if (s) {
d75029d0
NIS		 1357 STRLEN save = SvCUR(PL_formtarget);
1358 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1359 do_print(PL_formtarget, ofp);
1360 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1361 sv_chop(PL_formtarget, s);
1362 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1363 }
1364 }
a0d0e21e 1365 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1366 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1367 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1368 IoPAGE(io)++;
3280af22 1369 PL_formtarget = PL_toptarget;
748a9306 1370 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1371 fgv = IoTOP_GV(io);
1372 if (!fgv)
cea2e8a9 1373 DIE(aTHX_ "bad top format reference");
4633a7c4 1374 cv = GvFORM(fgv);
2dd78f96
JH		 1375 {
1376 char *name = NULL;
1377 if (!cv) {
1378 SV *sv = sv_newmortal();
1379 gv_efullname4(sv, fgv, Nullch, FALSE);
1380 name = SvPV_nolen(sv);
1381 }
1382 if (name && *name)
1383 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1384 /* why no:
1385 else
1386 DIE(aTHX_ "Undefined top format called");
1387 ?*/
4633a7c4 1388 }
44a8e56a 1389 if (CvCLONE(cv))
1390 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1391 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1392 }
1393
1394 forget_top:
3280af22 1395 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1396 POPFORMAT(cx);
1397 LEAVE;
1398
1399 fp = IoOFP(io);
1400 if (!fp) {
599cee73 1401 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1402 if (IoIFP(io))
1403 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1404 else if (ckWARN(WARN_CLOSED))
bc37a18f 1405 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1406 }
3280af22 1407 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1408 }
1409 else {
3280af22 1410 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1411 if (ckWARN(WARN_IO))
9014280d 1412 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1413 }
d75029d0 1414 if (!do_print(PL_formtarget, fp))
3280af22 1415 PUSHs(&PL_sv_no);
a0d0e21e 1416 else {
3280af22
NIS		 1417 FmLINES(PL_formtarget) = 0;
1418 SvCUR_set(PL_formtarget, 0);
1419 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1420 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1421 (void)PerlIO_flush(fp);
3280af22 1422 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1423 }
1424 }
9cbac4c7 1425 /* bad_ofp: */
3280af22 1426 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1427 PUTBACK;
1428 return pop_return();
1429}
1430
1431PP(pp_prtf)
1432{
39644a26 1433 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1434 GV *gv;
1435 IO *io;
760ac839 1436 PerlIO *fp;
26db47c4 1437 SV *sv;
46fc3d4c 1438 MAGIC *mg;
a0d0e21e 1439
533c011a 1440 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1441 gv = (GV*)*++MARK;
1442 else
3280af22 1443 gv = PL_defoutgv;
46fc3d4c 1444
5b468f54
AMS		 1445 if (gv && (io = GvIO(gv))
1446 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1447 {
46fc3d4c 1448 if (MARK == ORIGMARK) {
4352c267 1449 MEXTEND(SP, 1);
46fc3d4c 1450 ++MARK;
1451 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1452 ++SP;
1453 }
1454 PUSHMARK(MARK - 1);
5b468f54 1455 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1456 PUTBACK;
1457 ENTER;
864dbfa3 1458 call_method("PRINTF", G_SCALAR);
46fc3d4c 1459 LEAVE;
1460 SPAGAIN;
1461 MARK = ORIGMARK + 1;
1462 *MARK = *SP;
1463 SP = MARK;
1464 RETURN;
1465 }
1466
26db47c4 1467 sv = NEWSV(0,0);
a0d0e21e 1468 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1469 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1470 report_evil_fh(gv, io, PL_op->op_type);
93189314 1471 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1472 goto just_say_no;
1473 }
1474 else if (!(fp = IoOFP(io))) {
599cee73 1475 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1476 if (IoIFP(io))
1477 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1478 else if (ckWARN(WARN_CLOSED))
bc37a18f 1479 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1480 }
93189314 1481 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1482 goto just_say_no;
1483 }
1484 else {
1485 do_sprintf(sv, SP - MARK, MARK + 1);
1486 if (!do_print(sv, fp))
1487 goto just_say_no;
1488
1489 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1490 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1491 goto just_say_no;
1492 }
1493 SvREFCNT_dec(sv);
1494 SP = ORIGMARK;
3280af22 1495 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1496 RETURN;
1497
1498 just_say_no:
1499 SvREFCNT_dec(sv);
1500 SP = ORIGMARK;
3280af22 1501 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1502 RETURN;
1503}
1504
c07a80fd 1505PP(pp_sysopen)
1506{
39644a26 1507 dSP;
c07a80fd 1508 GV *gv;
c07a80fd 1509 SV *sv;
1510 char *tmps;
1511 STRLEN len;
1512 int mode, perm;
1513
1514 if (MAXARG > 3)
1515 perm = POPi;
1516 else
1517 perm = 0666;
1518 mode = POPi;
1519 sv = POPs;
1520 gv = (GV *)POPs;
1521
4592e6ca
NIS		 1522 /* Need TIEHANDLE method ? */
1523
c07a80fd 1524 tmps = SvPV(sv, len);
1525 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1526 IoLINES(GvIOp(gv)) = 0;
3280af22 1527 PUSHs(&PL_sv_yes);
c07a80fd 1528 }
1529 else {
3280af22 1530 PUSHs(&PL_sv_undef);
c07a80fd 1531 }
1532 RETURN;
1533}
1534
a0d0e21e
LW		 1535PP(pp_sysread)
1536{
39644a26 1537 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1538 int offset;
1539 GV *gv;
1540 IO *io;
1541 char *buffer;
5b54f415 1542 SSize_t length;
eb5c063a 1543 SSize_t count;
1e422769 1544 Sock_size_t bufsize;
748a9306 1545 SV *bufsv;
a0d0e21e 1546 STRLEN blen;
2ae324a7 1547 MAGIC *mg;
eb5c063a
NIS		 1548 int fp_utf8;
1549 Size_t got = 0;
1550 Size_t wanted;
1d636c13 1551 bool charstart = FALSE;
87330c3c
JH		 1552 STRLEN charskip = 0;
1553 STRLEN skip = 0;
a0d0e21e
LW		 1554
1555 gv = (GV*)*++MARK;
5b468f54
AMS		 1556 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1557 && gv && (io = GvIO(gv))
1558 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1559 {
2ae324a7 1560 SV *sv;
1561
1562 PUSHMARK(MARK-1);
5b468f54 1563 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1564 ENTER;
864dbfa3 1565 call_method("READ", G_SCALAR);
2ae324a7 1566 LEAVE;
1567 SPAGAIN;
1568 sv = POPs;
1569 SP = ORIGMARK;
1570 PUSHs(sv);
1571 RETURN;
1572 }
1573
a0d0e21e
LW		 1574 if (!gv)
1575 goto say_undef;
748a9306 1576 bufsv = *++MARK;
ff68c719 1577 if (! SvOK(bufsv))
1578 sv_setpvn(bufsv, "", 0);
a0d0e21e 1579 length = SvIVx(*++MARK);
748a9306 1580 SETERRNO(0,0);
a0d0e21e
LW		 1581 if (MARK < SP)
1582 offset = SvIVx(*++MARK);
1583 else
1584 offset = 0;
1585 io = GvIO(gv);
b5fe5ca2
SR		 1586 if (!io || !IoIFP(io)) {
1587 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1588 report_evil_fh(gv, io, PL_op->op_type);
1589 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1590 goto say_undef;
b5fe5ca2 1591 }
0064a8a9 1592 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1593 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1594 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1595 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1596 }
1597 else {
1598 buffer = SvPV_force(bufsv, blen);
1599 }
1600 if (length < 0)
1601 DIE(aTHX_ "Negative length");
eb5c063a 1602 wanted = length;
7d59b7e4 1603
d0965105
JH		 1604 charstart = TRUE;
1605 charskip = 0;
87330c3c 1606 skip = 0;
d0965105 1607
a0d0e21e 1608#ifdef HAS_SOCKET
533c011a 1609 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1610 char namebuf[MAXPATHLEN];
17a8c7ba 1611#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1612 bufsize = sizeof (struct sockaddr_in);
1613#else
46fc3d4c 1614 bufsize = sizeof namebuf;
490ab354 1615#endif
abf95952
IZ		 1616#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1617 if (bufsize >= 256)
1618 bufsize = 255;
1619#endif
eb160463 1620 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1621 /* 'offset' means 'flags' here */
eb5c063a 1622 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1623 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1624 if (count < 0)
a0d0e21e 1625 RETPUSHUNDEF;
4107cc59
OF		 1626#ifdef EPOC
1627 /* Bogus return without padding */
1628 bufsize = sizeof (struct sockaddr_in);
1629#endif
eb5c063a 1630 SvCUR_set(bufsv, count);
748a9306
LW		 1631 *SvEND(bufsv) = '\0';
1632 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1633 if (fp_utf8)
1634 SvUTF8_on(bufsv);
748a9306 1635 SvSETMAGIC(bufsv);
aac0dd9a 1636 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1637 if (!(IoFLAGS(io) & IOf_UNTAINT))
1638 SvTAINTED_on(bufsv);
a0d0e21e 1639 SP = ORIGMARK;
46fc3d4c 1640 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1641 PUSHs(TARG);
1642 RETURN;
1643 }
1644#else
911d147d 1645 if (PL_op->op_type == OP_RECV)
cea2e8a9 1646 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1647#endif
eb5c063a
NIS		 1648 if (DO_UTF8(bufsv)) {
1649 /* offset adjust in characters not bytes */
1650 blen = sv_len_utf8(bufsv);
7d59b7e4 1651 }
bbce6d69 1652 if (offset < 0) {
eb160463 1653 if (-offset > (int)blen)
cea2e8a9 1654 DIE(aTHX_ "Offset outside string");
bbce6d69 1655 offset += blen;
1656 }
eb5c063a
NIS		 1657 if (DO_UTF8(bufsv)) {
1658 /* convert offset-as-chars to offset-as-bytes */
1659 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1660 }
1661 more_bytes:
cd52b7b2 1662 bufsize = SvCUR(bufsv);
eb160463 1663 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1664 if (offset > bufsize) { /* Zero any newly allocated space */
1665 Zero(buffer+bufsize, offset-bufsize, char);
1666 }
eb5c063a
NIS		 1667 buffer = buffer + offset;
1668
533c011a 1669 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1670#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1671 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1672 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1673 buffer, length, 0);
a7092146
GS		 1674 }
1675 else
1676#endif
1677 {
eb5c063a
NIS		 1678 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1679 buffer, length);
a7092146 1680 }
a0d0e21e
LW		 1681 }
1682 else
1683#ifdef HAS_SOCKET__bad_code_maybe
50952442 1684 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1685 char namebuf[MAXPATHLEN];
490ab354
JH		 1686#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1687 bufsize = sizeof (struct sockaddr_in);
1688#else
46fc3d4c 1689 bufsize = sizeof namebuf;
490ab354 1690#endif
eb5c063a 1691 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1692 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1693 }
1694 else
1695#endif
3b02c43c 1696 {
eb5c063a
NIS		 1697 count = PerlIO_read(IoIFP(io), buffer, length);
1698 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1699 if (count == 0 && PerlIO_error(IoIFP(io)))
1700 count = -1;
3b02c43c 1701 }
eb5c063a 1702 if (count < 0) {
a00b5bd3 1703 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1704 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1705 goto say_undef;
af8c498a 1706 }
eb5c063a 1707 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1708 *SvEND(bufsv) = '\0';
1709 (void)SvPOK_only(bufsv);
0064a8a9 1710 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1711 /* Look at utf8 we got back and count the characters */
1712 char *bend = buffer + count;
1713 while (buffer < bend) {
d0965105
JH		 1714 if (charstart) {
1715 skip = UTF8SKIP(buffer);
1716 charskip = 0;
1717 }
1718 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1719 /* partial character - try for rest of it */
1720 length = skip - (bend-buffer);
1721 offset = bend - SvPVX(bufsv);
d0965105
JH		 1722 charstart = FALSE;
1723 charskip += count;
eb5c063a
NIS		 1724 goto more_bytes;
1725 }
1726 else {
1727 got++;
1728 buffer += skip;
d0965105
JH		 1729 charstart = TRUE;
1730 charskip = 0;
eb5c063a
NIS		 1731 }
1732 }
1733 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1734 provided amount read (count) was what was requested (length)
1735 */
1736 if (got < wanted && count == length) {
d0965105 1737 length = wanted - got;
eb5c063a
NIS		 1738 offset = bend - SvPVX(bufsv);
1739 goto more_bytes;
1740 }
1741 /* return value is character count */
1742 count = got;
1743 SvUTF8_on(bufsv);
1744 }
748a9306 1745 SvSETMAGIC(bufsv);
aac0dd9a 1746 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1747 if (!(IoFLAGS(io) & IOf_UNTAINT))
1748 SvTAINTED_on(bufsv);
a0d0e21e 1749 SP = ORIGMARK;
eb5c063a 1750 PUSHi(count);
a0d0e21e
LW		 1751 RETURN;
1752
1753 say_undef:
1754 SP = ORIGMARK;
1755 RETPUSHUNDEF;
1756}
1757
1758PP(pp_syswrite)
1759{
39644a26 1760 dSP;
092bebab
JH		 1761 int items = (SP - PL_stack_base) - TOPMARK;
1762 if (items == 2) {
9f089d78 1763 SV *sv;
092bebab 1764 EXTEND(SP, 1);
9f089d78
SB		 1765 sv = sv_2mortal(newSViv(sv_len(*SP)));
1766 PUSHs(sv);
092bebab
JH		 1767 PUTBACK;
1768 }
cea2e8a9 1769 return pp_send();
a0d0e21e
LW		 1770}
1771
1772PP(pp_send)
1773{
39644a26 1774 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1775 GV *gv;
1776 IO *io;
748a9306 1777 SV *bufsv;
a0d0e21e 1778 char *buffer;
8c99d73e
GS		 1779 Size_t length;
1780 SSize_t retval;
a0d0e21e 1781 STRLEN blen;
1d603a67 1782 MAGIC *mg;
a0d0e21e
LW		 1783
1784 gv = (GV*)*++MARK;
14befaf4 1785 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1786 && gv && (io = GvIO(gv))
1787 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1788 {
1d603a67
GB		 1789 SV *sv;
1790
1791 PUSHMARK(MARK-1);
5b468f54 1792 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1793 ENTER;
864dbfa3 1794 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1795 LEAVE;
1796 SPAGAIN;
1797 sv = POPs;
1798 SP = ORIGMARK;
1799 PUSHs(sv);
1800 RETURN;
1801 }
a0d0e21e
LW		 1802 if (!gv)
1803 goto say_undef;
748a9306 1804 bufsv = *++MARK;
8c99d73e 1805#if Size_t_size > IVSIZE
3c001241 1806 length = (Size_t)SvNVx(*++MARK);
146174a9 1807#else
3c001241 1808 length = (Size_t)SvIVx(*++MARK);
146174a9 1809#endif
3c001241 1810 if ((SSize_t)length < 0)
cea2e8a9 1811 DIE(aTHX_ "Negative length");
748a9306 1812 SETERRNO(0,0);
a0d0e21e
LW		 1813 io = GvIO(gv);
1814 if (!io || !IoIFP(io)) {
8c99d73e 1815 retval = -1;
bc37a18f
RG		 1816 if (ckWARN(WARN_CLOSED))
1817 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1818 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1819 goto say_undef;
1820 }
1821
1822 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1823 if (!SvUTF8(bufsv)) {
1824 bufsv = sv_2mortal(newSVsv(bufsv));
1825 buffer = sv_2pvutf8(bufsv, &blen);
1826 } else
1827 buffer = SvPV(bufsv, blen);
a0d0e21e 1828 }
7d59b7e4 1829 else {
4de5f5ca
JH		 1830 if (DO_UTF8(bufsv)) {
1831 /* Not modifying source SV, so making a temporary copy. */
1832 bufsv = sv_2mortal(newSVsv(bufsv));
1833 sv_utf8_downgrade(bufsv, FALSE);
1834 }
1835 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1836 }
1837
1838 if (PL_op->op_type == OP_SYSWRITE) {
1839 IV offset;
1840 if (DO_UTF8(bufsv)) {
1841 /* length and offset are in chars */
1842 blen = sv_len_utf8(bufsv);
1843 }
bbce6d69 1844 if (MARK < SP) {
a0d0e21e 1845 offset = SvIVx(*++MARK);
bbce6d69 1846 if (offset < 0) {
eb160463 1847 if (-offset > (IV)blen)
cea2e8a9 1848 DIE(aTHX_ "Offset outside string");
bbce6d69 1849 offset += blen;
eb160463 1850 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1851 DIE(aTHX_ "Offset outside string");
bbce6d69 1852 } else
a0d0e21e
LW		 1853 offset = 0;
1854 if (length > blen - offset)
1855 length = blen - offset;
7d59b7e4 1856 if (DO_UTF8(bufsv)) {
c8d31a35 1857 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1858 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1859 }
1860 else {
1861 buffer = buffer+offset;
1862 }
a7092146 1863#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1864 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1865 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1866 buffer, length, 0);
a7092146
GS		 1867 }
1868 else
1869#endif
1870 {
94e4c244 1871 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1872 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1873 buffer, length);
a7092146 1874 }
a0d0e21e
LW		 1875 }
1876#ifdef HAS_SOCKET
1877 else if (SP > MARK) {
1878 char *sockbuf;
1879 STRLEN mlen;
1880 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1881 /* length is really flags */
8c99d73e
GS		 1882 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1883 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1884 }
1885 else
7d59b7e4 1886 /* length is really flags */
8c99d73e 1887 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1888#else
1889 else
cea2e8a9 1890 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1891#endif
8c99d73e 1892 if (retval < 0)
a0d0e21e
LW		 1893 goto say_undef;
1894 SP = ORIGMARK;
f36eea10
JH		 1895 if (DO_UTF8(bufsv))
1896 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1897#if Size_t_size > IVSIZE
1898 PUSHn(retval);
1899#else
1900 PUSHi(retval);
1901#endif
a0d0e21e
LW		 1902 RETURN;
1903
1904 say_undef:
1905 SP = ORIGMARK;
1906 RETPUSHUNDEF;
1907}
1908
1909PP(pp_recv)
1910{
cea2e8a9 1911 return pp_sysread();
a0d0e21e
LW		 1912}
1913
1914PP(pp_eof)
1915{
39644a26 1916 dSP;
a0d0e21e 1917 GV *gv;
5b468f54 1918 IO *io;
4592e6ca 1919 MAGIC *mg;
a0d0e21e 1920
32da55ab 1921 if (MAXARG == 0) {
146174a9
CB		 1922 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1923 IO *io;
ed2c6b9b 1924 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1925 io = GvIO(gv);
1926 if (io && !IoIFP(io)) {
1927 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1928 IoLINES(io) = 0;
1929 IoFLAGS(io) &= ~IOf_START;
1930 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1931 sv_setpvn(GvSV(gv), "-", 1);
1932 SvSETMAGIC(GvSV(gv));
1933 }
1934 else if (!nextargv(gv))
1935 RETPUSHYES;
1936 }
1937 }
1938 else
1939 gv = PL_last_in_gv; /* eof */
1940 }
a0d0e21e 1941 else
146174a9 1942 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1943
5b468f54
AMS		 1944 if (gv && (io = GvIO(gv))
1945 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1946 {
4592e6ca 1947 PUSHMARK(SP);
5b468f54 1948 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1949 PUTBACK;
1950 ENTER;
864dbfa3 1951 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1952 LEAVE;
1953 SPAGAIN;
1954 RETURN;
1955 }
1956
54310121 1957 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1958 RETURN;
1959}
1960
1961PP(pp_tell)
1962{
39644a26 1963 dSP; dTARGET;
301e8125 1964 GV *gv;
5b468f54 1965 IO *io;
4592e6ca 1966 MAGIC *mg;
a0d0e21e 1967
32da55ab 1968 if (MAXARG == 0)
3280af22 1969 gv = PL_last_in_gv;
a0d0e21e 1970 else
3280af22 1971 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1972
5b468f54
AMS		 1973 if (gv && (io = GvIO(gv))
1974 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1975 {
4592e6ca 1976 PUSHMARK(SP);
5b468f54 1977 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1978 PUTBACK;
1979 ENTER;
864dbfa3 1980 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1981 LEAVE;
1982 SPAGAIN;
1983 RETURN;
1984 }
1985
146174a9
CB		 1986#if LSEEKSIZE > IVSIZE
1987 PUSHn( do_tell(gv) );
1988#else
a0d0e21e 1989 PUSHi( do_tell(gv) );
146174a9 1990#endif
a0d0e21e
LW		 1991 RETURN;
1992}
1993
1994PP(pp_seek)
1995{
cea2e8a9 1996 return pp_sysseek();
137443ea 1997}
1998
1999PP(pp_sysseek)
2000{
39644a26 2001 dSP;
a0d0e21e 2002 GV *gv;
5b468f54 2003 IO *io;
a0d0e21e 2004 int whence = POPi;
146174a9
CB		 2005#if LSEEKSIZE > IVSIZE
2006 Off_t offset = (Off_t)SvNVx(POPs);
2007#else
d9b3e12d 2008 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2009#endif
4592e6ca 2010 MAGIC *mg;
a0d0e21e 2011
3280af22 2012 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2013
5b468f54
AMS		 2014 if (gv && (io = GvIO(gv))
2015 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2016 {
4592e6ca 2017 PUSHMARK(SP);
5b468f54 2018 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2019#if LSEEKSIZE > IVSIZE
2020 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2021#else
b448e4fe 2022 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2023#endif
b448e4fe 2024 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2025 PUTBACK;
2026 ENTER;
864dbfa3 2027 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2028 LEAVE;
2029 SPAGAIN;
2030 RETURN;
2031 }
2032
533c011a 2033 if (PL_op->op_type == OP_SEEK)
8903cb82 2034 PUSHs(boolSV(do_seek(gv, offset, whence)));
2035 else {
b448e4fe
JH		 2036 Off_t sought = do_sysseek(gv, offset, whence);
2037 if (sought < 0)
146174a9
CB		 2038 PUSHs(&PL_sv_undef);
2039 else {
b448e4fe 2040 SV* sv = sought ?
146174a9 2041#if LSEEKSIZE > IVSIZE
b448e4fe 2042 newSVnv((NV)sought)
146174a9 2043#else
b448e4fe 2044 newSViv(sought)
146174a9
CB		 2045#endif
2046 : newSVpvn(zero_but_true, ZBTLEN);
2047 PUSHs(sv_2mortal(sv));
2048 }
8903cb82 2049 }
a0d0e21e
LW		 2050 RETURN;
2051}
2052
2053PP(pp_truncate)
2054{
39644a26 2055 dSP;
8c99d73e
GS		 2056 /* There seems to be no consensus on the length type of truncate()
2057 * and ftruncate(), both off_t and size_t have supporters. In
2058 * general one would think that when using large files, off_t is
2059 * at least as wide as size_t, so using an off_t should be okay. */
2060 /* XXX Configure probe for the length type of *truncate() needed XXX */
2061 Off_t len;
a0d0e21e 2062
25342a55 2063#if Off_t_size > IVSIZE
8c99d73e
GS		 2064 len = (Off_t)POPn;
2065#else
2066 len = (Off_t)POPi;
2067#endif
2068 /* Checking for length < 0 is problematic as the type might or
301e8125 2069 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2070 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2071 SETERRNO(0,0);
5d94fbed 2072#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2073 {
2074 STRLEN n_a;
2075 int result = 1;
2076 GV *tmpgv;
090bf15b
SR		 2077 IO *io;
2078
d05c1ba0
JH		 2079 if (PL_op->op_flags & OPf_SPECIAL) {
2080 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2081
090bf15b
SR		 2082 do_ftruncate_gv:
2083 if (!GvIO(tmpgv))
2084 result = 0;
d05c1ba0 2085 else {
090bf15b
SR		 2086 PerlIO *fp;
2087 io = GvIOp(tmpgv);
2088 do_ftruncate_io:
2089 TAINT_PROPER("truncate");
2090 if (!(fp = IoIFP(io))) {
2091 result = 0;
2092 }
2093 else {
2094 PerlIO_flush(fp);
cbdc8872 2095#ifdef HAS_TRUNCATE
090bf15b 2096 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2097#else
090bf15b 2098 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2099#endif
090bf15b
SR		 2100 result = 0;
2101 }
d05c1ba0 2102 }
cbdc8872 2103 }
d05c1ba0
JH		 2104 else {
2105 SV *sv = POPs;
2106 char *name;
72f496dc 2107
d05c1ba0
JH		 2108 if (SvTYPE(sv) == SVt_PVGV) {
2109 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2110 goto do_ftruncate_gv;
d05c1ba0
JH		 2111 }
2112 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2113 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2114 goto do_ftruncate_gv;
2115 }
2116 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2117 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2118 goto do_ftruncate_io;
d05c1ba0 2119 }
1e422769 2120
d05c1ba0
JH		 2121 name = SvPV(sv, n_a);
2122 TAINT_PROPER("truncate");
cbdc8872 2123#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2124 if (truncate(name, len) < 0)
2125 result = 0;
cbdc8872 2126#else
d05c1ba0
JH		 2127 {
2128 int tmpfd;
2129
2130 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2131 result = 0;
d05c1ba0
JH		 2132 else {
2133 if (my_chsize(tmpfd, len) < 0)
2134 result = 0;
2135 PerlLIO_close(tmpfd);
2136 }
cbdc8872 2137 }
a0d0e21e 2138#endif
d05c1ba0 2139 }
a0d0e21e 2140
d05c1ba0
JH		 2141 if (result)
2142 RETPUSHYES;
2143 if (!errno)
93189314 2144 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2145 RETPUSHUNDEF;
2146 }
a0d0e21e 2147#else
cea2e8a9 2148 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2149#endif
2150}
2151
2152PP(pp_fcntl)
2153{
cea2e8a9 2154 return pp_ioctl();
a0d0e21e
LW		 2155}
2156
2157PP(pp_ioctl)
2158{
39644a26 2159 dSP; dTARGET;
748a9306 2160 SV *argsv = POPs;
3bb7c1b4 2161 unsigned int func = POPu;
533c011a 2162 int optype = PL_op->op_type;
a0d0e21e 2163 char *s;
324aa91a 2164 IV retval;
a0d0e21e 2165 GV *gv = (GV*)POPs;
c289d2f7 2166 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2167
748a9306 2168 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2169 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2170 report_evil_fh(gv, io, PL_op->op_type);
93189314 2171 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2172 RETPUSHUNDEF;
2173 }
2174
748a9306 2175 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2176 STRLEN len;
324aa91a 2177 STRLEN need;
748a9306 2178 s = SvPV_force(argsv, len);
324aa91a
HF		 2179 need = IOCPARM_LEN(func);
2180 if (len < need) {
2181 s = Sv_Grow(argsv, need + 1);
2182 SvCUR_set(argsv, need);
a0d0e21e
LW		 2183 }
2184
748a9306 2185 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2186 }
2187 else {
748a9306 2188 retval = SvIV(argsv);
c529f79d 2189 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2190 }
2191
2192 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2193
2194 if (optype == OP_IOCTL)
2195#ifdef HAS_IOCTL
76e3520e 2196 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2197#else
cea2e8a9 2198 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2199#endif
2200 else
c214f4ad
WB		 2201#ifndef HAS_FCNTL
2202 DIE(aTHX_ "fcntl is not implemented");
2203#else
55497cff 2204#if defined(OS2) && defined(__EMX__)
760ac839 2205 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2206#else
760ac839 2207 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2208#endif
6652bd42 2209#endif
a0d0e21e 2210
6652bd42 2211#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2212 if (SvPOK(argsv)) {
2213 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2214 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2215 OP_NAME(PL_op));
748a9306
LW		 2216 s[SvCUR(argsv)] = 0; /* put our null back */
2217 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2218 }
2219
2220 if (retval == -1)
2221 RETPUSHUNDEF;
2222 if (retval != 0) {
2223 PUSHi(retval);
2224 }
2225 else {
8903cb82 2226 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2227 }
4808266b 2228#endif
c214f4ad 2229 RETURN;
a0d0e21e
LW		 2230}
2231
2232PP(pp_flock)
2233{
9cad6237 2234#ifdef FLOCK
39644a26 2235 dSP; dTARGET;
a0d0e21e
LW		 2236 I32 value;
2237 int argtype;
2238 GV *gv;
bc37a18f 2239 IO *io = NULL;
760ac839 2240 PerlIO *fp;
16d20bd9 2241
a0d0e21e 2242 argtype = POPi;
32da55ab 2243 if (MAXARG == 0)
3280af22 2244 gv = PL_last_in_gv;
a0d0e21e
LW		 2245 else
2246 gv = (GV*)POPs;
bc37a18f
RG		 2247 if (gv && (io = GvIO(gv)))
2248 fp = IoIFP(io);
2249 else {
a0d0e21e 2250 fp = Nullfp;
bc37a18f
RG		 2251 io = NULL;
2252 }
a0d0e21e 2253 if (fp) {
68dc0745 2254 (void)PerlIO_flush(fp);
76e3520e 2255 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2256 }
cb50131a 2257 else {
bc37a18f
RG		 2258 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2259 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2260 value = 0;
93189314 2261 SETERRNO(EBADF,RMS_IFI);
cb50131a 2262 }
a0d0e21e
LW		 2263 PUSHi(value);
2264 RETURN;
2265#else
cea2e8a9 2266 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2267#endif
2268}
2269
2270/* Sockets. */
2271
2272PP(pp_socket)
2273{
a0d0e21e 2274#ifdef HAS_SOCKET
9cad6237 2275 dSP;
a0d0e21e
LW		 2276 GV *gv;
2277 register IO *io;
2278 int protocol = POPi;
2279 int type = POPi;
2280 int domain = POPi;
2281 int fd;
2282
2283 gv = (GV*)POPs;
c289d2f7 2284 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2285
c289d2f7
JH		 2286 if (!gv || !io) {
2287 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2288 report_evil_fh(gv, io, PL_op->op_type);
2289 if (IoIFP(io))
2290 do_close(gv, FALSE);
93189314 2291 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2292 RETPUSHUNDEF;
2293 }
2294
57171420
BS		 2295 if (IoIFP(io))
2296 do_close(gv, FALSE);
2297
a0d0e21e 2298 TAINT_PROPER("socket");
6ad3d225 2299 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2300 if (fd < 0)
2301 RETPUSHUNDEF;
460c8493
IZ		 2302 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2303 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2304 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2305 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2306 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2307 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2308 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2309 RETPUSHUNDEF;
2310 }
8d2a6795
GS		 2311#if defined(HAS_FCNTL) && defined(F_SETFD)
2312 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2313#endif
a0d0e21e 2314
d5ff79b3
OF		 2315#ifdef EPOC
2316 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2317#endif
2318
a0d0e21e
LW		 2319 RETPUSHYES;
2320#else
cea2e8a9 2321 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2322#endif
2323}
2324
2325PP(pp_sockpair)
2326{
c95c94b1 2327#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2328 dSP;
a0d0e21e
LW		 2329 GV *gv1;
2330 GV *gv2;
2331 register IO *io1;
2332 register IO *io2;
2333 int protocol = POPi;
2334 int type = POPi;
2335 int domain = POPi;
2336 int fd[2];
2337
2338 gv2 = (GV*)POPs;
2339 gv1 = (GV*)POPs;
c289d2f7
JH		 2340 io1 = gv1 ? GvIOn(gv1) : NULL;
2341 io2 = gv2 ? GvIOn(gv2) : NULL;
2342 if (!gv1 || !gv2 || !io1 || !io2) {
2343 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2344 if (!gv1 || !io1)
2345 report_evil_fh(gv1, io1, PL_op->op_type);
2346 if (!gv2 || !io2)
2347 report_evil_fh(gv1, io2, PL_op->op_type);
2348 }
2349 if (IoIFP(io1))
2350 do_close(gv1, FALSE);
2351 if (IoIFP(io2))
2352 do_close(gv2, FALSE);
a0d0e21e 2353 RETPUSHUNDEF;
c289d2f7 2354 }
a0d0e21e 2355
dc0d0a5f
JH		 2356 if (IoIFP(io1))
2357 do_close(gv1, FALSE);
2358 if (IoIFP(io2))
2359 do_close(gv2, FALSE);
57171420 2360
a0d0e21e 2361 TAINT_PROPER("socketpair");
6ad3d225 2362 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2363 RETPUSHUNDEF;
460c8493
IZ		 2364 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2365 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2366 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2367 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2368 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2369 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2370 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2371 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2372 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2373 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2374 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2375 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2376 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2377 RETPUSHUNDEF;
2378 }
8d2a6795
GS		 2379#if defined(HAS_FCNTL) && defined(F_SETFD)
2380 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2381 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2382#endif
a0d0e21e
LW		 2383
2384 RETPUSHYES;
2385#else
cea2e8a9 2386 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2387#endif
2388}
2389
2390PP(pp_bind)
2391{
a0d0e21e 2392#ifdef HAS_SOCKET
9cad6237 2393 dSP;
eec2d3df 2394#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2395 extern void GETPRIVMODE();
2396 extern void GETUSERMODE();
eec2d3df 2397#endif
748a9306 2398 SV *addrsv = POPs;
a0d0e21e
LW		 2399 char *addr;
2400 GV *gv = (GV*)POPs;
2401 register IO *io = GvIOn(gv);
2402 STRLEN len;
eec2d3df
GS		 2403 int bind_ok = 0;
2404#ifdef MPE
2405 int mpeprivmode = 0;
2406#endif
a0d0e21e
LW		 2407
2408 if (!io || !IoIFP(io))
2409 goto nuts;
2410
748a9306 2411 addr = SvPV(addrsv, len);
a0d0e21e 2412 TAINT_PROPER("bind");
eec2d3df
GS		 2413#ifdef MPE /* Deal with MPE bind() peculiarities */
2414 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2415 /* The address *MUST* stupidly be zero. */
2416 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2417 /* PRIV mode is required to bind() to ports < 1024. */
2418 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2419 ((struct sockaddr_in *)addr)->sin_port > 0) {
2420 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2421 mpeprivmode = 1;
2422 }
2423 }
2424#endif /* MPE */
2425 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2426 (struct sockaddr *)addr, len) >= 0)
2427 bind_ok = 1;
2428
2429#ifdef MPE /* Switch back to USER mode */
2430 if (mpeprivmode)
2431 GETUSERMODE();
2432#endif /* MPE */
2433
2434 if (bind_ok)
a0d0e21e
LW		 2435 RETPUSHYES;
2436 else
2437 RETPUSHUNDEF;
2438
2439nuts:
599cee73 2440 if (ckWARN(WARN_CLOSED))
bc37a18f 2441 report_evil_fh(gv, io, PL_op->op_type);
93189314 2442 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2443 RETPUSHUNDEF;
2444#else
cea2e8a9 2445 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2446#endif
2447}
2448
2449PP(pp_connect)
2450{
a0d0e21e 2451#ifdef HAS_SOCKET
9cad6237 2452 dSP;
748a9306 2453 SV *addrsv = POPs;
a0d0e21e
LW		 2454 char *addr;
2455 GV *gv = (GV*)POPs;
2456 register IO *io = GvIOn(gv);
2457 STRLEN len;
2458
2459 if (!io || !IoIFP(io))
2460 goto nuts;
2461
748a9306 2462 addr = SvPV(addrsv, len);
a0d0e21e 2463 TAINT_PROPER("connect");
6ad3d225 2464 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2465 RETPUSHYES;
2466 else
2467 RETPUSHUNDEF;
2468
2469nuts:
599cee73 2470 if (ckWARN(WARN_CLOSED))
bc37a18f 2471 report_evil_fh(gv, io, PL_op->op_type);
93189314 2472 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2473 RETPUSHUNDEF;
2474#else
cea2e8a9 2475 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2476#endif
2477}
2478
2479PP(pp_listen)
2480{
a0d0e21e 2481#ifdef HAS_SOCKET
9cad6237 2482 dSP;
a0d0e21e
LW		 2483 int backlog = POPi;
2484 GV *gv = (GV*)POPs;
c289d2f7 2485 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2486
c289d2f7 2487 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2488 goto nuts;
2489
6ad3d225 2490 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2491 RETPUSHYES;
2492 else
2493 RETPUSHUNDEF;
2494
2495nuts:
599cee73 2496 if (ckWARN(WARN_CLOSED))
bc37a18f 2497 report_evil_fh(gv, io, PL_op->op_type);
93189314 2498 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2499 RETPUSHUNDEF;
2500#else
cea2e8a9 2501 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2502#endif
2503}
2504
2505PP(pp_accept)
2506{
a0d0e21e 2507#ifdef HAS_SOCKET
9cad6237 2508 dSP; dTARGET;
a0d0e21e
LW		 2509 GV *ngv;
2510 GV *ggv;
2511 register IO *nstio;
2512 register IO *gstio;
93d47a36
JH		 2513 char namebuf[MAXPATHLEN];
2514#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2515 Sock_size_t len = sizeof (struct sockaddr_in);
2516#else
2517 Sock_size_t len = sizeof namebuf;
2518#endif
a0d0e21e
LW		 2519 int fd;
2520
2521 ggv = (GV*)POPs;
2522 ngv = (GV*)POPs;
2523
2524 if (!ngv)
2525 goto badexit;
2526 if (!ggv)
2527 goto nuts;
2528
2529 gstio = GvIO(ggv);
2530 if (!gstio || !IoIFP(gstio))
2531 goto nuts;
2532
2533 nstio = GvIOn(ngv);
93d47a36 2534 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2535 if (fd < 0)
2536 goto badexit;
a70048fb
AB		 2537 if (IoIFP(nstio))
2538 do_close(ngv, FALSE);
460c8493
IZ		 2539 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2540 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2541 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2542 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2543 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2544 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2545 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2546 goto badexit;
2547 }
8d2a6795
GS		 2548#if defined(HAS_FCNTL) && defined(F_SETFD)
2549 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2550#endif
a0d0e21e 2551
ed79a026 2552#ifdef EPOC
93d47a36 2553 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2554 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2555#endif
381c1bae 2556#ifdef __SCO_VERSION__
93d47a36 2557 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2558#endif
ed79a026 2559
93d47a36 2560 PUSHp(namebuf, len);
a0d0e21e
LW		 2561 RETURN;
2562
2563nuts:
599cee73 2564 if (ckWARN(WARN_CLOSED))
bc37a18f 2565 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2566 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2567
2568badexit:
2569 RETPUSHUNDEF;
2570
2571#else
cea2e8a9 2572 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2573#endif
2574}
2575
2576PP(pp_shutdown)
2577{
a0d0e21e 2578#ifdef HAS_SOCKET
9cad6237 2579 dSP; dTARGET;
a0d0e21e
LW		 2580 int how = POPi;
2581 GV *gv = (GV*)POPs;
2582 register IO *io = GvIOn(gv);
2583
2584 if (!io || !IoIFP(io))
2585 goto nuts;
2586
6ad3d225 2587 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2588 RETURN;
2589
2590nuts:
599cee73 2591 if (ckWARN(WARN_CLOSED))
bc37a18f 2592 report_evil_fh(gv, io, PL_op->op_type);
93189314 2593 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2594 RETPUSHUNDEF;
2595#else
cea2e8a9 2596 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2597#endif
2598}
2599
2600PP(pp_gsockopt)
2601{
2602#ifdef HAS_SOCKET
cea2e8a9 2603 return pp_ssockopt();
a0d0e21e 2604#else
cea2e8a9 2605 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2606#endif
2607}
2608
2609PP(pp_ssockopt)
2610{
a0d0e21e 2611#ifdef HAS_SOCKET
9cad6237 2612 dSP;
533c011a 2613 int optype = PL_op->op_type;
a0d0e21e
LW		 2614 SV *sv;
2615 int fd;
2616 unsigned int optname;
2617 unsigned int lvl;
2618 GV *gv;
2619 register IO *io;
1e422769 2620 Sock_size_t len;
a0d0e21e
LW		 2621
2622 if (optype == OP_GSOCKOPT)
2623 sv = sv_2mortal(NEWSV(22, 257));
2624 else
2625 sv = POPs;
2626 optname = (unsigned int) POPi;
2627 lvl = (unsigned int) POPi;
2628
2629 gv = (GV*)POPs;
2630 io = GvIOn(gv);
2631 if (!io || !IoIFP(io))
2632 goto nuts;
2633
760ac839 2634 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2635 switch (optype) {
2636 case OP_GSOCKOPT:
748a9306 2637 SvGROW(sv, 257);
a0d0e21e 2638 (void)SvPOK_only(sv);
748a9306
LW		 2639 SvCUR_set(sv,256);
2640 *SvEND(sv) ='\0';
1e422769 2641 len = SvCUR(sv);
6ad3d225 2642 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2643 goto nuts2;
1e422769 2644 SvCUR_set(sv, len);
748a9306 2645 *SvEND(sv) ='\0';
a0d0e21e
LW		 2646 PUSHs(sv);
2647 break;
2648 case OP_SSOCKOPT: {
1e422769 2649 char *buf;
2650 int aint;
2651 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2652 STRLEN l;
2653 buf = SvPV(sv, l);
2654 len = l;
1e422769 2655 }
56ee1660 2656 else {
a0d0e21e
LW		 2657 aint = (int)SvIV(sv);
2658 buf = (char*)&aint;
2659 len = sizeof(int);
2660 }
6ad3d225 2661 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2662 goto nuts2;
3280af22 2663 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2664 }
2665 break;
2666 }
2667 RETURN;
2668
2669nuts:
599cee73 2670 if (ckWARN(WARN_CLOSED))
bc37a18f 2671 report_evil_fh(gv, io, optype);
93189314 2672 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2673nuts2:
2674 RETPUSHUNDEF;
2675
2676#else
cea2e8a9 2677 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2678#endif
2679}
2680
2681PP(pp_getsockname)
2682{
2683#ifdef HAS_SOCKET
cea2e8a9 2684 return pp_getpeername();
a0d0e21e 2685#else
cea2e8a9 2686 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2687#endif
2688}
2689
2690PP(pp_getpeername)
2691{
a0d0e21e 2692#ifdef HAS_SOCKET
9cad6237 2693 dSP;
533c011a 2694 int optype = PL_op->op_type;
a0d0e21e
LW		 2695 SV *sv;
2696 int fd;
2697 GV *gv = (GV*)POPs;
2698 register IO *io = GvIOn(gv);
1e422769 2699 Sock_size_t len;
a0d0e21e
LW		 2700
2701 if (!io || !IoIFP(io))
2702 goto nuts;
2703
2704 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2705 (void)SvPOK_only(sv);
1e422769 2706 len = 256;
2707 SvCUR_set(sv, len);
748a9306 2708 *SvEND(sv) ='\0';
760ac839 2709 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2710 switch (optype) {
2711 case OP_GETSOCKNAME:
6ad3d225 2712 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2713 goto nuts2;
2714 break;
2715 case OP_GETPEERNAME:
6ad3d225 2716 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2717 goto nuts2;
490ab354
JH		 2718#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2719 {
2720 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";
2721 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2722 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2723 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2724 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2725 goto nuts2;
490ab354
JH		 2726 }
2727 }
2728#endif
a0d0e21e
LW		 2729 break;
2730 }
13826f2c
CS		 2731#ifdef BOGUS_GETNAME_RETURN
2732 /* Interactive Unix, getpeername() and getsockname()
2733 does not return valid namelen */
1e422769 2734 if (len == BOGUS_GETNAME_RETURN)
2735 len = sizeof(struct sockaddr);
13826f2c 2736#endif
1e422769 2737 SvCUR_set(sv, len);
748a9306 2738 *SvEND(sv) ='\0';
a0d0e21e
LW		 2739 PUSHs(sv);
2740 RETURN;
2741
2742nuts:
599cee73 2743 if (ckWARN(WARN_CLOSED))
bc37a18f 2744 report_evil_fh(gv, io, optype);
93189314 2745 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2746nuts2:
2747 RETPUSHUNDEF;
2748
2749#else
cea2e8a9 2750 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2751#endif
2752}
2753
2754/* Stat calls. */
2755
2756PP(pp_lstat)
2757{
cea2e8a9 2758 return pp_stat();
a0d0e21e
LW		 2759}
2760
2761PP(pp_stat)
2762{
39644a26 2763 dSP;
2dd78f96 2764 GV *gv;
54310121 2765 I32 gimme;
a0d0e21e 2766 I32 max = 13;
2d8e6c8d 2767 STRLEN n_a;
a0d0e21e 2768
533c011a 2769 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2770 gv = cGVOP_gv;
8a4e5b40 2771 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2772 if (gv != PL_defgv) {
2773 if (ckWARN(WARN_IO))
9014280d 2774 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2775 "lstat() on filehandle %s", GvENAME(gv));
2776 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2777 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2778 }
2779
748a9306 2780 do_fstat:
2dd78f96 2781 if (gv != PL_defgv) {
3280af22 2782 PL_laststype = OP_STAT;
2dd78f96 2783 PL_statgv = gv;
3280af22 2784 sv_setpv(PL_statname, "");
2dd78f96
JH		 2785 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2786 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2787 }
9ddeeac9 2788 if (PL_laststatval < 0) {
2dd78f96
JH		 2789 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2790 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2791 max = 0;
9ddeeac9 2792 }
a0d0e21e
LW		 2793 }
2794 else {
748a9306
LW		 2795 SV* sv = POPs;
2796 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2797 gv = (GV*)sv;
748a9306
LW		 2798 goto do_fstat;
2799 }
2800 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2801 gv = (GV*)SvRV(sv);
5d3e98de 2802 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2803 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2804 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2805 goto do_fstat;
2806 }
2d8e6c8d 2807 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2808 PL_statgv = Nullgv;
a0d0e21e 2809#ifdef HAS_LSTAT
533c011a
NIS		 2810 PL_laststype = PL_op->op_type;
2811 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2812 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2813 else
2814#endif
2d8e6c8d 2815 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2816 if (PL_laststatval < 0) {
2d8e6c8d 2817 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2818 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2819 max = 0;
2820 }
2821 }
2822
54310121 2823 gimme = GIMME_V;
2824 if (gimme != G_ARRAY) {
2825 if (gimme != G_VOID)
2826 XPUSHs(boolSV(max));
2827 RETURN;
a0d0e21e
LW		 2828 }
2829 if (max) {
36477c24 2830 EXTEND(SP, max);
2831 EXTEND_MORTAL(max);
1ff81528
PL		 2832 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2833 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2834 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2835 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2836#if Uid_t_size > IVSIZE
2837 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2838#else
23dcd6c8 2839# if Uid_t_sign <= 0
1ff81528 2840 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2841# else
2842 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2843# endif
146174a9 2844#endif
301e8125 2845#if Gid_t_size > IVSIZE
146174a9
CB		 2846 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2847#else
23dcd6c8 2848# if Gid_t_sign <= 0
1ff81528 2849 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2850# else
2851 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2852# endif
146174a9 2853#endif
cbdc8872 2854#ifdef USE_STAT_RDEV
1ff81528 2855 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2856#else
79cb57f6 2857 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2858#endif
146174a9 2859#if Off_t_size > IVSIZE
4a9d6100 2860 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2861#else
1ff81528 2862 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2863#endif
cbdc8872 2864#ifdef BIG_TIME
172ae379
JH		 2865 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2866 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2867 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2868#else
1ff81528
PL		 2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2872#endif
a0d0e21e 2873#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2875 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2876#else
79cb57f6
GS		 2877 PUSHs(sv_2mortal(newSVpvn("", 0)));
2878 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2879#endif
2880 }
2881 RETURN;
2882}
2883
fbb0b3b3
RGS		 2884/* This macro is used by the stacked filetest operators :
2885 * if the previous filetest failed, short-circuit and pass its value.
2886 * Else, discard it from the stack and continue. --rgs
2887 */
2888#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2889 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2890 else { (void)POPs; PUTBACK; } \
2891 }
2892
a0d0e21e
LW		 2893PP(pp_ftrread)
2894{
9cad6237 2895 I32 result;
2a3ff820 2896 dSP;
fbb0b3b3 2897 STACKED_FTEST_CHECK;
5ff3f7a4 2898#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2899 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2900 STRLEN n_a;
43b06338 2901 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2902 if (result == 0)
2903 RETPUSHYES;
2904 if (result < 0)
2905 RETPUSHUNDEF;
2906 RETPUSHNO;
22865c03
GS		 2907 }
2908 else
cea2e8a9 2909 result = my_stat();
5ff3f7a4 2910#else
cea2e8a9 2911 result = my_stat();
5ff3f7a4 2912#endif
22865c03 2913 SPAGAIN;
a0d0e21e
LW		 2914 if (result < 0)
2915 RETPUSHUNDEF;
3280af22 2916 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2917 RETPUSHYES;
2918 RETPUSHNO;
2919}
2920
2921PP(pp_ftrwrite)
2922{
9cad6237 2923 I32 result;
2a3ff820 2924 dSP;
fbb0b3b3 2925 STACKED_FTEST_CHECK;
5ff3f7a4 2926#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2927 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2928 STRLEN n_a;
43b06338 2929 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2930 if (result == 0)
2931 RETPUSHYES;
2932 if (result < 0)
2933 RETPUSHUNDEF;
2934 RETPUSHNO;
22865c03
GS		 2935 }
2936 else
cea2e8a9 2937 result = my_stat();
5ff3f7a4 2938#else
cea2e8a9 2939 result = my_stat();
5ff3f7a4 2940#endif
22865c03 2941 SPAGAIN;
a0d0e21e
LW		 2942 if (result < 0)
2943 RETPUSHUNDEF;
3280af22 2944 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2945 RETPUSHYES;
2946 RETPUSHNO;
2947}
2948
2949PP(pp_ftrexec)
2950{
9cad6237 2951 I32 result;
2a3ff820 2952 dSP;
fbb0b3b3 2953 STACKED_FTEST_CHECK;
5ff3f7a4 2954#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2955 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2956 STRLEN n_a;
43b06338 2957 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2958 if (result == 0)
2959 RETPUSHYES;
2960 if (result < 0)
2961 RETPUSHUNDEF;
2962 RETPUSHNO;
22865c03
GS		 2963 }
2964 else
cea2e8a9 2965 result = my_stat();
5ff3f7a4 2966#else
cea2e8a9 2967 result = my_stat();
5ff3f7a4 2968#endif
22865c03 2969 SPAGAIN;
a0d0e21e
LW		 2970 if (result < 0)
2971 RETPUSHUNDEF;
3280af22 2972 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2973 RETPUSHYES;
2974 RETPUSHNO;
2975}
2976
2977PP(pp_fteread)
2978{
9cad6237 2979 I32 result;
2a3ff820 2980 dSP;
fbb0b3b3 2981 STACKED_FTEST_CHECK;
5ff3f7a4 2982#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 2983 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2984 STRLEN n_a;
43b06338 2985 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2986 if (result == 0)
2987 RETPUSHYES;
2988 if (result < 0)
2989 RETPUSHUNDEF;
2990 RETPUSHNO;
22865c03
GS		 2991 }
2992 else
cea2e8a9 2993 result = my_stat();
5ff3f7a4 2994#else
cea2e8a9 2995 result = my_stat();
5ff3f7a4 2996#endif
22865c03 2997 SPAGAIN;
a0d0e21e
LW		 2998 if (result < 0)
2999 RETPUSHUNDEF;
3280af22 3000 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3001 RETPUSHYES;
3002 RETPUSHNO;
3003}
3004
3005PP(pp_ftewrite)
3006{
9cad6237 3007 I32 result;
2a3ff820 3008 dSP;
fbb0b3b3 3009 STACKED_FTEST_CHECK;
5ff3f7a4 3010#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3011 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3012 STRLEN n_a;
43b06338 3013 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3014 if (result == 0)
3015 RETPUSHYES;
3016 if (result < 0)
3017 RETPUSHUNDEF;
3018 RETPUSHNO;
22865c03
GS		 3019 }
3020 else
cea2e8a9 3021 result = my_stat();
5ff3f7a4 3022#else
cea2e8a9 3023 result = my_stat();
5ff3f7a4 3024#endif
22865c03 3025 SPAGAIN;
a0d0e21e
LW		 3026 if (result < 0)
3027 RETPUSHUNDEF;
3280af22 3028 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3029 RETPUSHYES;
3030 RETPUSHNO;
3031}
3032
3033PP(pp_fteexec)
3034{
9cad6237 3035 I32 result;
2a3ff820 3036 dSP;
fbb0b3b3 3037 STACKED_FTEST_CHECK;
5ff3f7a4 3038#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3039 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3040 STRLEN n_a;
43b06338 3041 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3042 if (result == 0)
3043 RETPUSHYES;
3044 if (result < 0)
3045 RETPUSHUNDEF;
3046 RETPUSHNO;
22865c03
GS		 3047 }
3048 else
cea2e8a9 3049 result = my_stat();
5ff3f7a4 3050#else
cea2e8a9 3051 result = my_stat();
5ff3f7a4 3052#endif
22865c03 3053 SPAGAIN;
a0d0e21e
LW		 3054 if (result < 0)
3055 RETPUSHUNDEF;
3280af22 3056 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3057 RETPUSHYES;
3058 RETPUSHNO;
3059}
3060
3061PP(pp_ftis)
3062{
fbb0b3b3 3063 I32 result;
2a3ff820 3064 dSP;
fbb0b3b3
RGS		 3065 STACKED_FTEST_CHECK;
3066 result = my_stat();
3067 SPAGAIN;
a0d0e21e
LW		 3068 if (result < 0)
3069 RETPUSHUNDEF;
3070 RETPUSHYES;
3071}
3072
3073PP(pp_fteowned)
3074{
cea2e8a9 3075 return pp_ftrowned();
a0d0e21e
LW		 3076}
3077
3078PP(pp_ftrowned)
3079{
fbb0b3b3 3080 I32 result;
2a3ff820 3081 dSP;
fbb0b3b3
RGS		 3082 STACKED_FTEST_CHECK;
3083 result = my_stat();
3084 SPAGAIN;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
146174a9
CB		 3087 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3088 PL_euid : PL_uid) )
a0d0e21e
LW		 3089 RETPUSHYES;
3090 RETPUSHNO;
3091}
3092
3093PP(pp_ftzero)
3094{
fbb0b3b3 3095 I32 result;
2a3ff820 3096 dSP;
fbb0b3b3
RGS		 3097 STACKED_FTEST_CHECK;
3098 result = my_stat();
3099 SPAGAIN;
a0d0e21e
LW		 3100 if (result < 0)
3101 RETPUSHUNDEF;
146174a9 3102 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3103 RETPUSHYES;
3104 RETPUSHNO;
3105}
3106
3107PP(pp_ftsize)
3108{
fbb0b3b3 3109 I32 result;
2a3ff820 3110 dSP; dTARGET;
fbb0b3b3
RGS		 3111 STACKED_FTEST_CHECK;
3112 result = my_stat();
3113 SPAGAIN;
a0d0e21e
LW		 3114 if (result < 0)
3115 RETPUSHUNDEF;
146174a9
CB		 3116#if Off_t_size > IVSIZE
3117 PUSHn(PL_statcache.st_size);
3118#else
3280af22 3119 PUSHi(PL_statcache.st_size);
146174a9 3120#endif
a0d0e21e
LW		 3121 RETURN;
3122}
3123
3124PP(pp_ftmtime)
3125{
fbb0b3b3 3126 I32 result;
2a3ff820 3127 dSP; dTARGET;
fbb0b3b3
RGS		 3128 STACKED_FTEST_CHECK;
3129 result = my_stat();
3130 SPAGAIN;
a0d0e21e
LW		 3131 if (result < 0)
3132 RETPUSHUNDEF;
a80d47c2 3133 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3134 RETURN;
3135}
3136
3137PP(pp_ftatime)
3138{
fbb0b3b3 3139 I32 result;
2a3ff820 3140 dSP; dTARGET;
fbb0b3b3
RGS		 3141 STACKED_FTEST_CHECK;
3142 result = my_stat();
3143 SPAGAIN;
a0d0e21e
LW		 3144 if (result < 0)
3145 RETPUSHUNDEF;
a80d47c2 3146 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3147 RETURN;
3148}
3149
3150PP(pp_ftctime)
3151{
fbb0b3b3 3152 I32 result;
2a3ff820 3153 dSP; dTARGET;
fbb0b3b3
RGS		 3154 STACKED_FTEST_CHECK;
3155 result = my_stat();
3156 SPAGAIN;
a0d0e21e
LW		 3157 if (result < 0)
3158 RETPUSHUNDEF;
a80d47c2 3159 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3160 RETURN;
3161}
3162
3163PP(pp_ftsock)
3164{
fbb0b3b3 3165 I32 result;
2a3ff820 3166 dSP;
fbb0b3b3
RGS		 3167 STACKED_FTEST_CHECK;
3168 result = my_stat();
3169 SPAGAIN;
a0d0e21e
LW		 3170 if (result < 0)
3171 RETPUSHUNDEF;
3280af22 3172 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3173 RETPUSHYES;
3174 RETPUSHNO;
3175}
3176
3177PP(pp_ftchr)
3178{
fbb0b3b3 3179 I32 result;
2a3ff820 3180 dSP;
fbb0b3b3
RGS		 3181 STACKED_FTEST_CHECK;
3182 result = my_stat();
3183 SPAGAIN;
a0d0e21e
LW		 3184 if (result < 0)
3185 RETPUSHUNDEF;
3280af22 3186 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3187 RETPUSHYES;
3188 RETPUSHNO;
3189}
3190
3191PP(pp_ftblk)
3192{
fbb0b3b3 3193 I32 result;
2a3ff820 3194 dSP;
fbb0b3b3
RGS		 3195 STACKED_FTEST_CHECK;
3196 result = my_stat();
3197 SPAGAIN;
a0d0e21e
LW		 3198 if (result < 0)
3199 RETPUSHUNDEF;
3280af22 3200 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3201 RETPUSHYES;
3202 RETPUSHNO;
3203}
3204
3205PP(pp_ftfile)
3206{
fbb0b3b3 3207 I32 result;
2a3ff820 3208 dSP;
fbb0b3b3
RGS		 3209 STACKED_FTEST_CHECK;
3210 result = my_stat();
3211 SPAGAIN;
a0d0e21e
LW		 3212 if (result < 0)
3213 RETPUSHUNDEF;
3280af22 3214 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3215 RETPUSHYES;
3216 RETPUSHNO;
3217}
3218
3219PP(pp_ftdir)
3220{
fbb0b3b3 3221 I32 result;
2a3ff820 3222 dSP;
fbb0b3b3
RGS		 3223 STACKED_FTEST_CHECK;
3224 result = my_stat();
3225 SPAGAIN;
a0d0e21e
LW		 3226 if (result < 0)
3227 RETPUSHUNDEF;
3280af22 3228 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3229 RETPUSHYES;
3230 RETPUSHNO;
3231}
3232
3233PP(pp_ftpipe)
3234{
fbb0b3b3 3235 I32 result;
2a3ff820 3236 dSP;
fbb0b3b3
RGS		 3237 STACKED_FTEST_CHECK;
3238 result = my_stat();
3239 SPAGAIN;
a0d0e21e
LW		 3240 if (result < 0)
3241 RETPUSHUNDEF;
3280af22 3242 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3243 RETPUSHYES;
3244 RETPUSHNO;
3245}
3246
3247PP(pp_ftlink)
3248{
9cad6237 3249 I32 result = my_lstat();
2a3ff820 3250 dSP;
a0d0e21e
LW		 3251 if (result < 0)
3252 RETPUSHUNDEF;
3280af22 3253 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3254 RETPUSHYES;
3255 RETPUSHNO;
3256}
3257
3258PP(pp_ftsuid)
3259{
39644a26 3260 dSP;
a0d0e21e 3261#ifdef S_ISUID
fbb0b3b3
RGS		 3262 I32 result;
3263 STACKED_FTEST_CHECK;
3264 result = my_stat();
a0d0e21e
LW		 3265 SPAGAIN;
3266 if (result < 0)
3267 RETPUSHUNDEF;
3280af22 3268 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3269 RETPUSHYES;
3270#endif
3271 RETPUSHNO;
3272}
3273
3274PP(pp_ftsgid)
3275{
39644a26 3276 dSP;
a0d0e21e 3277#ifdef S_ISGID
fbb0b3b3
RGS		 3278 I32 result;
3279 STACKED_FTEST_CHECK;
3280 result = my_stat();
a0d0e21e
LW		 3281 SPAGAIN;
3282 if (result < 0)
3283 RETPUSHUNDEF;
3280af22 3284 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3285 RETPUSHYES;
3286#endif
3287 RETPUSHNO;
3288}
3289
3290PP(pp_ftsvtx)
3291{
39644a26 3292 dSP;
a0d0e21e 3293#ifdef S_ISVTX
fbb0b3b3
RGS		 3294 I32 result;
3295 STACKED_FTEST_CHECK;
3296 result = my_stat();
a0d0e21e
LW		 3297 SPAGAIN;
3298 if (result < 0)
3299 RETPUSHUNDEF;
3280af22 3300 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3301 RETPUSHYES;
3302#endif
3303 RETPUSHNO;
3304}
3305
3306PP(pp_fttty)
3307{
39644a26 3308 dSP;
a0d0e21e
LW		 3309 int fd;
3310 GV *gv;
fb73857a 3311 char *tmps = Nullch;
2d8e6c8d 3312 STRLEN n_a;
fb73857a 3313
fbb0b3b3
RGS		 3314 STACKED_FTEST_CHECK;
3315
533c011a 3316 if (PL_op->op_flags & OPf_REF)
146174a9 3317 gv = cGVOP_gv;
fb73857a 3318 else if (isGV(TOPs))
3319 gv = (GV*)POPs;
3320 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3321 gv = (GV*)SvRV(POPs);
a0d0e21e 3322 else
2d8e6c8d 3323 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3324
a0d0e21e 3325 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3326 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3327 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3328 fd = atoi(tmps);
3329 else
3330 RETPUSHUNDEF;
6ad3d225 3331 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3332 RETPUSHYES;
3333 RETPUSHNO;
3334}
3335
16d20bd9
AD		 3336#if defined(atarist) /* this will work with atariST. Configure will
3337 make guesses for other systems. */
3338# define FILE_base(f) ((f)->_base)
3339# define FILE_ptr(f) ((f)->_ptr)
3340# define FILE_cnt(f) ((f)->_cnt)
3341# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3342#endif
3343
3344PP(pp_fttext)
3345{
39644a26 3346 dSP;
a0d0e21e
LW		 3347 I32 i;
3348 I32 len;
3349 I32 odd = 0;
3350 STDCHAR tbuf[512];
3351 register STDCHAR *s;
3352 register IO *io;
5f05dabc 3353 register SV *sv;
3354 GV *gv;
2d8e6c8d 3355 STRLEN n_a;
146174a9 3356 PerlIO *fp;
a0d0e21e 3357
fbb0b3b3
RGS		 3358 STACKED_FTEST_CHECK;
3359
533c011a 3360 if (PL_op->op_flags & OPf_REF)
146174a9 3361 gv = cGVOP_gv;
5f05dabc 3362 else if (isGV(TOPs))
3363 gv = (GV*)POPs;
3364 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3365 gv = (GV*)SvRV(POPs);
3366 else
3367 gv = Nullgv;
3368
3369 if (gv) {
a0d0e21e 3370 EXTEND(SP, 1);
3280af22
NIS		 3371 if (gv == PL_defgv) {
3372 if (PL_statgv)
3373 io = GvIO(PL_statgv);
a0d0e21e 3374 else {
3280af22 3375 sv = PL_statname;
a0d0e21e
LW		 3376 goto really_filename;
3377 }
3378 }
3379 else {
3280af22
NIS		 3380 PL_statgv = gv;
3381 PL_laststatval = -1;
3382 sv_setpv(PL_statname, "");
3383 io = GvIO(PL_statgv);
a0d0e21e
LW		 3384 }
3385 if (io && IoIFP(io)) {
5f05dabc 3386 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3387 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3388 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3389 if (PL_laststatval < 0)
5f05dabc 3390 RETPUSHUNDEF;
9cbac4c7 3391 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3392 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3393 RETPUSHNO;
3394 else
3395 RETPUSHYES;
9cbac4c7 3396 }
a20bf0c3 3397 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3398 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3399 if (i != EOF)
760ac839 3400 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3401 }
a20bf0c3 3402 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3403 RETPUSHYES;
a20bf0c3
JH		 3404 len = PerlIO_get_bufsiz(IoIFP(io));
3405 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3406 /* sfio can have large buffers - limit to 512 */
3407 if (len > 512)
3408 len = 512;
a0d0e21e
LW		 3409 }
3410 else {
2dd78f96 3411 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3412 gv = cGVOP_gv;
2dd78f96 3413 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3414 }
93189314 3415 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3416 RETPUSHUNDEF;
3417 }
3418 }
3419 else {
3420 sv = POPs;
5f05dabc 3421 really_filename:
3280af22
NIS		 3422 PL_statgv = Nullgv;
3423 PL_laststatval = -1;
5c9aa243 3424 PL_laststype = OP_STAT;
2d8e6c8d 3425 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3426 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3427 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3428 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3429 RETPUSHUNDEF;
3430 }
146174a9
CB		 3431 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3432 if (PL_laststatval < 0) {
3433 (void)PerlIO_close(fp);
5f05dabc 3434 RETPUSHUNDEF;
146174a9 3435 }
60382766 3436 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3437 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3438 (void)PerlIO_close(fp);
a0d0e21e 3439 if (len <= 0) {
533c011a 3440 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3441 RETPUSHNO; /* special case NFS directories */
3442 RETPUSHYES; /* null file is anything */
3443 }
3444 s = tbuf;
3445 }
3446
3447 /* now scan s to look for textiness */
4633a7c4 3448 /* XXX ASCII dependent code */
a0d0e21e 3449
146174a9
CB		 3450#if defined(DOSISH) || defined(USEMYBINMODE)
3451 /* ignore trailing ^Z on short files */
3452 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3453 --len;
3454#endif
3455
a0d0e21e
LW		 3456 for (i = 0; i < len; i++, s++) {
3457 if (!*s) { /* null never allowed in text */
3458 odd += len;
3459 break;
3460 }
9d116dd7 3461#ifdef EBCDIC
301e8125 3462 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3463 odd++;
3464#else
146174a9
CB		 3465 else if (*s & 128) {
3466#ifdef USE_LOCALE
2de3dbcc 3467 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3468 continue;
3469#endif
3470 /* utf8 characters don't count as odd */
fd400ab9 3471 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3472 int ulen = UTF8SKIP(s);
3473 if (ulen < len - i) {
3474 int j;
3475 for (j = 1; j < ulen; j++) {
fd400ab9 3476 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3477 goto not_utf8;
3478 }
3479 --ulen; /* loop does extra increment */
3480 s += ulen;
3481 i += ulen;
3482 continue;
3483 }
3484 }
3485 not_utf8:
3486 odd++;
146174a9 3487 }
a0d0e21e
LW		 3488 else if (*s < 32 &&
3489 *s != '\n' && *s != '\r' && *s != '\b' &&
3490 *s != '\t' && *s != '\f' && *s != 27)
3491 odd++;
9d116dd7 3492#endif
a0d0e21e
LW		 3493 }
3494
533c011a 3495 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3496 RETPUSHNO;
3497 else
3498 RETPUSHYES;
3499}
3500
3501PP(pp_ftbinary)
3502{
cea2e8a9 3503 return pp_fttext();
a0d0e21e
LW		 3504}
3505
3506/* File calls. */
3507
3508PP(pp_chdir)
3509{
39644a26 3510 dSP; dTARGET;
a0d0e21e
LW		 3511 char *tmps;
3512 SV **svp;
2d8e6c8d 3513 STRLEN n_a;
a0d0e21e 3514
35ae6b54
MS		 3515 if( MAXARG == 1 )
3516 tmps = POPpx;
3517 else
3518 tmps = 0;
3519
3520 if( !tmps || !*tmps ) {
3521 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3522 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3523#ifdef VMS
35ae6b54 3524 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3525#endif
35ae6b54
MS		 3526 )
3527 {
3528 if( MAXARG == 1 )
9014280d 3529 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3530 tmps = SvPV(*svp, n_a);
3531 }
72f496dc 3532 else {
389ec635 3533 PUSHi(0);
b7ab37f8 3534 TAINT_PROPER("chdir");
389ec635
MS		 3535 RETURN;
3536 }
8ea155d1 3537 }
8ea155d1 3538
a0d0e21e 3539 TAINT_PROPER("chdir");
6ad3d225 3540 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3541#ifdef VMS
3542 /* Clear the DEFAULT element of ENV so we'll get the new value
3543 * in the future. */
6b88bc9c 3544 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3545#endif
a0d0e21e
LW		 3546 RETURN;
3547}
3548
3549PP(pp_chown)
3550{
a0d0e21e 3551#ifdef HAS_CHOWN
76ffd3b9
IZ		 3552 dSP; dMARK; dTARGET;
3553 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3554
a0d0e21e
LW		 3555 SP = MARK;
3556 PUSHi(value);
3557 RETURN;
3558#else
0322a713 3559 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3560#endif
3561}
3562
3563PP(pp_chroot)
3564{
a0d0e21e 3565#ifdef HAS_CHROOT
76ffd3b9 3566 dSP; dTARGET;
2d8e6c8d 3567 STRLEN n_a;
d05c1ba0 3568 char *tmps = POPpx;
a0d0e21e
LW		 3569 TAINT_PROPER("chroot");
3570 PUSHi( chroot(tmps) >= 0 );
3571 RETURN;
3572#else
cea2e8a9 3573 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3574#endif
3575}
3576
3577PP(pp_unlink)
3578{
39644a26 3579 dSP; dMARK; dTARGET;
a0d0e21e 3580 I32 value;
533c011a 3581 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3582 SP = MARK;
3583 PUSHi(value);
3584 RETURN;
3585}
3586
3587PP(pp_chmod)
3588{
39644a26 3589 dSP; dMARK; dTARGET;
a0d0e21e 3590 I32 value;
533c011a 3591 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3592 SP = MARK;
3593 PUSHi(value);
3594 RETURN;
3595}
3596
3597PP(pp_utime)
3598{
39644a26 3599 dSP; dMARK; dTARGET;
a0d0e21e 3600 I32 value;
533c011a 3601 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3602 SP = MARK;
3603 PUSHi(value);
3604 RETURN;
3605}
3606
3607PP(pp_rename)
3608{
39644a26 3609 dSP; dTARGET;
a0d0e21e 3610 int anum;
2d8e6c8d 3611 STRLEN n_a;
a0d0e21e 3612
2d8e6c8d
GS		 3613 char *tmps2 = POPpx;
3614 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3615 TAINT_PROPER("rename");
3616#ifdef HAS_RENAME
baed7233 3617 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3618#else
6b88bc9c 3619 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3620 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3621 anum = 1;
3622 else {
3654eb6c 3623 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3624 (void)UNLINK(tmps2);
3625 if (!(anum = link(tmps, tmps2)))
3626 anum = UNLINK(tmps);
3627 }
a0d0e21e
LW		 3628 }
3629#endif
3630 SETi( anum >= 0 );
3631 RETURN;
3632}
3633
3634PP(pp_link)
3635{
a0d0e21e 3636#ifdef HAS_LINK
370f6000 3637 dSP; dTARGET;
2d8e6c8d
GS		 3638 STRLEN n_a;
3639 char *tmps2 = POPpx;
3640 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3641 TAINT_PROPER("link");
146174a9 3642 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3643 RETURN;
a0d0e21e 3644#else
0322a713 3645 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3646#endif
a0d0e21e
LW		 3647}
3648
3649PP(pp_symlink)
3650{
a0d0e21e 3651#ifdef HAS_SYMLINK
9cad6237 3652 dSP; dTARGET;
2d8e6c8d
GS		 3653 STRLEN n_a;
3654 char *tmps2 = POPpx;
3655 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3656 TAINT_PROPER("symlink");
3657 SETi( symlink(tmps, tmps2) >= 0 );
3658 RETURN;
3659#else
cea2e8a9 3660 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3661#endif
3662}
3663
3664PP(pp_readlink)
3665{
76ffd3b9 3666 dSP;
a0d0e21e 3667#ifdef HAS_SYMLINK
76ffd3b9 3668 dTARGET;
a0d0e21e 3669 char *tmps;
46fc3d4c 3670 char buf[MAXPATHLEN];
a0d0e21e 3671 int len;
2d8e6c8d 3672 STRLEN n_a;
46fc3d4c 3673
fb73857a 3674#ifndef INCOMPLETE_TAINTS
3675 TAINT;
3676#endif
2d8e6c8d 3677 tmps = POPpx;
97dcea33 3678 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3679 EXTEND(SP, 1);
3680 if (len < 0)
3681 RETPUSHUNDEF;
3682 PUSHp(buf, len);
3683 RETURN;
3684#else
3685 EXTEND(SP, 1);
3686 RETSETUNDEF; /* just pretend it's a normal file */
3687#endif
3688}
3689
3690#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3691STATIC int
cea2e8a9 3692S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3693{
1e422769 3694 char *save_filename = filename;
3695 char *cmdline;
3696 char *s;
760ac839 3697 PerlIO *myfp;
1e422769 3698 int anum = 1;
a0d0e21e 3699
1e422769 3700 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3701 strcpy(cmdline, cmd);
3702 strcat(cmdline, " ");
3703 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3704 *s++ = '\\';
3705 *s++ = *filename++;
3706 }
3707 strcpy(s, " 2>&1");
6ad3d225 3708 myfp = PerlProc_popen(cmdline, "r");
1e422769 3709 Safefree(cmdline);
3710
a0d0e21e 3711 if (myfp) {
1e422769 3712 SV *tmpsv = sv_newmortal();
6b88bc9c 3713 /* Need to save/restore 'PL_rs' ?? */
760ac839 3714 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3715 (void)PerlProc_pclose(myfp);
a0d0e21e 3716 if (s != Nullch) {
1e422769 3717 int e;
3718 for (e = 1;
a0d0e21e 3719#ifdef HAS_SYS_ERRLIST
1e422769 3720 e <= sys_nerr
3721#endif
3722 ; e++)
3723 {
3724 /* you don't see this */
3725 char *errmsg =
3726#ifdef HAS_SYS_ERRLIST
3727 sys_errlist[e]
a0d0e21e 3728#else
1e422769 3729 strerror(e)
a0d0e21e 3730#endif
1e422769 3731 ;
3732 if (!errmsg)
3733 break;
3734 if (instr(s, errmsg)) {
3735 SETERRNO(e,0);
3736 return 0;
3737 }
a0d0e21e 3738 }
748a9306 3739 SETERRNO(0,0);
a0d0e21e
LW		 3740#ifndef EACCES
3741#define EACCES EPERM
3742#endif
1e422769 3743 if (instr(s, "cannot make"))
93189314 3744 SETERRNO(EEXIST,RMS_FEX);
1e422769 3745 else if (instr(s, "existing file"))
93189314 3746 SETERRNO(EEXIST,RMS_FEX);
1e422769 3747 else if (instr(s, "ile exists"))
93189314 3748 SETERRNO(EEXIST,RMS_FEX);
1e422769 3749 else if (instr(s, "non-exist"))
93189314 3750 SETERRNO(ENOENT,RMS_FNF);
1e422769 3751 else if (instr(s, "does not exist"))
93189314 3752 SETERRNO(ENOENT,RMS_FNF);
1e422769 3753 else if (instr(s, "not empty"))
93189314 3754 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3755 else if (instr(s, "cannot access"))
93189314 3756 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3757 else
93189314 3758 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3759 return 0;
3760 }
3761 else { /* some mkdirs return no failure indication */
6b88bc9c 3762 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3763 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3764 anum = !anum;
3765 if (anum)
748a9306 3766 SETERRNO(0,0);
a0d0e21e 3767 else
93189314 3768 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3769 }
3770 return anum;
3771 }
3772 else
3773 return 0;
3774}
3775#endif
3776
0c54f65b
RGS		 3777/* This macro removes trailing slashes from a directory name.
3778 * Different operating and file systems take differently to
3779 * trailing slashes. According to POSIX 1003.1 1996 Edition
3780 * any number of trailing slashes should be allowed.
3781 * Thusly we snip them away so that even non-conforming
3782 * systems are happy.
3783 * We should probably do this "filtering" for all
3784 * the functions that expect (potentially) directory names:
3785 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3786 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3787
3788#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3789 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3790 do { \
3791 (len)--; \
3792 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3793 (tmps) = savepvn((tmps), (len)); \
3794 (copy) = TRUE; \
3795 }
3796
a0d0e21e
LW		 3797PP(pp_mkdir)
3798{
39644a26 3799 dSP; dTARGET;
5a211162 3800 int mode;
a0d0e21e
LW		 3801#ifndef HAS_MKDIR
3802 int oldumask;
3803#endif
df25ddba 3804 STRLEN len;
5a211162 3805 char *tmps;
df25ddba 3806 bool copy = FALSE;
5a211162
GS		 3807
3808 if (MAXARG > 1)
3809 mode = POPi;
3810 else
3811 mode = 0777;
3812
0c54f65b 3813 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3814
3815 TAINT_PROPER("mkdir");
3816#ifdef HAS_MKDIR
6ad3d225 3817 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3818#else
3819 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3820 oldumask = PerlLIO_umask(0);
3821 PerlLIO_umask(oldumask);
3822 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3823#endif
df25ddba
JH		 3824 if (copy)
3825 Safefree(tmps);
a0d0e21e
LW		 3826 RETURN;
3827}
3828
3829PP(pp_rmdir)
3830{
39644a26 3831 dSP; dTARGET;
0c54f65b 3832 STRLEN len;
a0d0e21e 3833 char *tmps;
0c54f65b 3834 bool copy = FALSE;
a0d0e21e 3835
0c54f65b 3836 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3837 TAINT_PROPER("rmdir");
3838#ifdef HAS_RMDIR
0c54f65b 3839 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3840#else
0c54f65b 3841 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3842#endif
0c54f65b
RGS		 3843 if (copy)
3844 Safefree(tmps);
a0d0e21e
LW		 3845 RETURN;
3846}
3847
3848/* Directory calls. */
3849
3850PP(pp_open_dir)
3851{
a0d0e21e 3852#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3853 dSP;
2d8e6c8d
GS		 3854 STRLEN n_a;
3855 char *dirname = POPpx;
1e2c6ed7
JH		 3856 GV *gv = (GV*)POPs;
3857 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3858
3859 if (!io)
3860 goto nope;
3861
3862 if (IoDIRP(io))
6ad3d225
GS		 3863 PerlDir_close(IoDIRP(io));
3864 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3865 goto nope;
3866
3867 RETPUSHYES;
3868nope:
3869 if (!errno)
93189314 3870 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3871 RETPUSHUNDEF;
3872#else
cea2e8a9 3873 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3874#endif
3875}
3876
3877PP(pp_readdir)
3878{
34b7f128
AMS		 3879#if !defined(Direntry_t) || !defined(HAS_READDIR)
3880 DIE(aTHX_ PL_no_dir_func, "readdir");
3881#else
fd8cd3a3 3882#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3883 Direntry_t *readdir (DIR *);
a0d0e21e 3884#endif
34b7f128
AMS		 3885 dSP;
3886
3887 SV *sv;
3888 I32 gimme = GIMME;
3889 GV *gv = (GV *)POPs;
a0d0e21e 3890 register Direntry_t *dp;
a0d0e21e
LW		 3891 register IO *io = GvIOn(gv);
3892
3893 if (!io || !IoDIRP(io))
3894 goto nope;
3895
34b7f128
AMS		 3896 do {
3897 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3898 if (!dp)
3899 break;
a0d0e21e 3900#ifdef DIRNAMLEN
34b7f128 3901 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3902#else
34b7f128 3903 sv = newSVpv(dp->d_name, 0);
fb73857a 3904#endif
3905#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3906 if (!(IoFLAGS(io) & IOf_UNTAINT))
3907 SvTAINTED_on(sv);
a0d0e21e 3908#endif
34b7f128 3909 XPUSHs(sv_2mortal(sv));
a0d0e21e 3910 }
34b7f128
AMS		 3911 while (gimme == G_ARRAY);
3912
3913 if (!dp && gimme != G_ARRAY)
3914 goto nope;
3915
a0d0e21e
LW		 3916 RETURN;
3917
3918nope:
3919 if (!errno)
93189314 3920 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3921 if (GIMME == G_ARRAY)
3922 RETURN;
3923 else
3924 RETPUSHUNDEF;
a0d0e21e
LW		 3925#endif
3926}
3927
3928PP(pp_telldir)
3929{
a0d0e21e 3930#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3931 dSP; dTARGET;
968dcd91
JH		 3932 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3933 /* XXX netbsd still seemed to.
3934 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3935 --JHI 1999-Feb-02 */
3936# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3937 long telldir (DIR *);
dfe9444c 3938# endif
a0d0e21e
LW		 3939 GV *gv = (GV*)POPs;
3940 register IO *io = GvIOn(gv);
3941
3942 if (!io || !IoDIRP(io))
3943 goto nope;
3944
6ad3d225 3945 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3946 RETURN;
3947nope:
3948 if (!errno)
93189314 3949 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3950 RETPUSHUNDEF;
3951#else
cea2e8a9 3952 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3953#endif
3954}
3955
3956PP(pp_seekdir)
3957{
a0d0e21e 3958#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3959 dSP;
a0d0e21e
LW		 3960 long along = POPl;
3961 GV *gv = (GV*)POPs;
3962 register IO *io = GvIOn(gv);
3963
3964 if (!io || !IoDIRP(io))
3965 goto nope;
3966
6ad3d225 3967 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3968
3969 RETPUSHYES;
3970nope:
3971 if (!errno)
93189314 3972 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3973 RETPUSHUNDEF;
3974#else
cea2e8a9 3975 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3976#endif
3977}
3978
3979PP(pp_rewinddir)
3980{
a0d0e21e 3981#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3982 dSP;
a0d0e21e
LW		 3983 GV *gv = (GV*)POPs;
3984 register IO *io = GvIOn(gv);
3985
3986 if (!io || !IoDIRP(io))
3987 goto nope;
3988
6ad3d225 3989 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3990 RETPUSHYES;
3991nope:
3992 if (!errno)
93189314 3993 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3994 RETPUSHUNDEF;
3995#else
cea2e8a9 3996 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3997#endif
3998}
3999
4000PP(pp_closedir)
4001{
a0d0e21e 4002#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4003 dSP;
a0d0e21e
LW		 4004 GV *gv = (GV*)POPs;
4005 register IO *io = GvIOn(gv);
4006
4007 if (!io || !IoDIRP(io))
4008 goto nope;
4009
4010#ifdef VOID_CLOSEDIR
6ad3d225 4011 PerlDir_close(IoDIRP(io));
a0d0e21e 4012#else
6ad3d225 4013 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4014 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4015 goto nope;
748a9306 4016 }
a0d0e21e
LW		 4017#endif
4018 IoDIRP(io) = 0;
4019
4020 RETPUSHYES;
4021nope:
4022 if (!errno)
93189314 4023 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4024 RETPUSHUNDEF;
4025#else
cea2e8a9 4026 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4027#endif
4028}
4029
4030/* Process control. */
4031
4032PP(pp_fork)
4033{
44a8e56a 4034#ifdef HAS_FORK
39644a26 4035 dSP; dTARGET;
761237fe 4036 Pid_t childpid;
a0d0e21e
LW		 4037 GV *tmpgv;
4038
4039 EXTEND(SP, 1);
45bc9206 4040 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4041 childpid = PerlProc_fork();
a0d0e21e
LW		 4042 if (childpid < 0)
4043 RETSETUNDEF;
4044 if (!childpid) {
4045 /*SUPPRESS 560*/
306196c3
MS		 4046 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4047 SvREADONLY_off(GvSV(tmpgv));
146174a9 4048 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4049 SvREADONLY_on(GvSV(tmpgv));
4050 }
4d76a344
RGS		 4051#ifdef THREADS_HAVE_PIDS
4052 PL_ppid = (IV)getppid();
4053#endif
3280af22 4054 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4055 }
4056 PUSHi(childpid);
4057 RETURN;
4058#else
146174a9 4059# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4060 dSP; dTARGET;
146174a9
CB		 4061 Pid_t childpid;
4062
4063 EXTEND(SP, 1);
4064 PERL_FLUSHALL_FOR_CHILD;
4065 childpid = PerlProc_fork();
60fa28ff
GS		 4066 if (childpid == -1)
4067 RETSETUNDEF;
146174a9
CB		 4068 PUSHi(childpid);
4069 RETURN;
4070# else
0322a713 4071 DIE(aTHX_ PL_no_func, "fork");
146174a9 4072# endif
a0d0e21e
LW		 4073#endif
4074}
4075
4076PP(pp_wait)
4077{
301e8125 4078#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4079 dSP; dTARGET;
761237fe 4080 Pid_t childpid;
a0d0e21e 4081 int argflags;
a0d0e21e 4082
4ffa73a3
JH		 4083 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4084 childpid = wait4pid(-1, &argflags, 0);
4085 else {
4086 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4087 errno == EINTR) {
4088 PERL_ASYNC_CHECK();
4089 }
0a0ada86 4090 }
68a29c53
GS		 4091# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4092 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4093 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4094# else
f86702cc 4095 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4096# endif
44a8e56a 4097 XPUSHi(childpid);
a0d0e21e
LW		 4098 RETURN;
4099#else
0322a713 4100 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4101#endif
4102}
4103
4104PP(pp_waitpid)
4105{
301e8125 4106#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4107 dSP; dTARGET;
2ec0bfb3
SG		 4108 Pid_t pid;
4109 Pid_t result;
a0d0e21e
LW		 4110 int optype;
4111 int argflags;
a0d0e21e 4112
a0d0e21e 4113 optype = POPi;
2ec0bfb3 4114 pid = TOPi;
4ffa73a3 4115 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4116 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4117 else {
2ec0bfb3 4118 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4119 errno == EINTR) {
4120 PERL_ASYNC_CHECK();
4121 }
0a0ada86 4122 }
68a29c53
GS		 4123# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4124 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4125 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4126# else
2ec0bfb3 4127 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4128# endif
2ec0bfb3 4129 SETi(result);
a0d0e21e
LW		 4130 RETURN;
4131#else
0322a713 4132 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4133#endif
4134}
4135
4136PP(pp_system)
4137{
39644a26 4138 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4139 I32 value;
2d8e6c8d 4140 STRLEN n_a;
76ffd3b9 4141 int result;
e7766f89 4142 I32 did_pipes = 0;
a0d0e21e 4143
bbd7eb8a
RD		 4144 if (PL_tainting) {
4145 TAINT_ENV();
4146 while (++MARK <= SP) {
4147 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4148 if (PL_tainted)
bbd7eb8a
RD		 4149 break;
4150 }
4151 MARK = ORIGMARK;
5a445156 4152 TAINT_PROPER("system");
a0d0e21e 4153 }
45bc9206 4154 PERL_FLUSHALL_FOR_CHILD;
273b0206 4155#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4156 {
eb160463
GS		 4157 Pid_t childpid;
4158 int pp[2];
4159
4160 if (PerlProc_pipe(pp) >= 0)
4161 did_pipes = 1;
4162 while ((childpid = PerlProc_fork()) == -1) {
4163 if (errno != EAGAIN) {
4164 value = -1;
4165 SP = ORIGMARK;
4166 PUSHi(value);
4167 if (did_pipes) {
4168 PerlLIO_close(pp[0]);
4169 PerlLIO_close(pp[1]);
4170 }
4171 RETURN;
4172 }
4173 sleep(5);
4174 }
4175 if (childpid > 0) {
4176 Sigsave_t ihand,qhand; /* place to save signals during system() */
4177 int status;
4178
4179 if (did_pipes)
4180 PerlLIO_close(pp[1]);
64ca3a65 4181#ifndef PERL_MICRO
eb160463
GS		 4182 rsignal_save(SIGINT, SIG_IGN, &ihand);
4183 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4184#endif
eb160463
GS		 4185 do {
4186 result = wait4pid(childpid, &status, 0);
4187 } while (result == -1 && errno == EINTR);
64ca3a65 4188#ifndef PERL_MICRO
eb160463
GS		 4189 (void)rsignal_restore(SIGINT, &ihand);
4190 (void)rsignal_restore(SIGQUIT, &qhand);
4191#endif
4192 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4193 do_execfree(); /* free any memory child malloced on fork */
4194 SP = ORIGMARK;
4195 if (did_pipes) {
4196 int errkid;
4197 int n = 0, n1;
4198
4199 while (n < sizeof(int)) {
4200 n1 = PerlLIO_read(pp[0],
4201 (void*)(((char*)&errkid)+n),
4202 (sizeof(int)) - n);
4203 if (n1 <= 0)
4204 break;
4205 n += n1;
4206 }
4207 PerlLIO_close(pp[0]);
4208 if (n) { /* Error */
4209 if (n != sizeof(int))
4210 DIE(aTHX_ "panic: kid popen errno read");
4211 errno = errkid; /* Propagate errno from kid */
4212 STATUS_CURRENT = -1;
4213 }
4214 }
4215 PUSHi(STATUS_CURRENT);
4216 RETURN;
4217 }
4218 if (did_pipes) {
4219 PerlLIO_close(pp[0]);
d5a9bfb0 4220#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4221 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4222#endif
eb160463 4223 }
e0a1f643
JH		 4224 if (PL_op->op_flags & OPf_STACKED) {
4225 SV *really = *++MARK;
4226 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4227 }
4228 else if (SP - MARK != 1)
4229 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4230 else {
4231 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4232 }
4233 PerlProc__exit(-1);
d5a9bfb0 4234 }
c3293030 4235#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4236 PL_statusvalue = 0;
4237 result = 0;
911d147d 4238 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4239 SV *really = *++MARK;
622913ab 4240# if defined(WIN32) || defined(OS2)
54725af6
GS		 4241 value = (I32)do_aspawn(really, MARK, SP);
4242# else
c5be433b 4243 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4244# endif
a0d0e21e 4245 }
54725af6 4246 else if (SP - MARK != 1) {
622913ab 4247# if defined(WIN32) || defined(OS2)
54725af6
GS		 4248 value = (I32)do_aspawn(Nullsv, MARK, SP);
4249# else
c5be433b 4250 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4251# endif
4252 }
a0d0e21e 4253 else {
c5be433b 4254 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4255 }
922b1888
GS		 4256 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4257 result = 1;
f86702cc 4258 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4259 do_execfree();
4260 SP = ORIGMARK;
922b1888 4261 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4262#endif /* !FORK or VMS */
4263 RETURN;
4264}
4265
4266PP(pp_exec)
4267{
39644a26 4268 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4269 I32 value;
2d8e6c8d 4270 STRLEN n_a;
a0d0e21e 4271
bbd7eb8a
RD		 4272 if (PL_tainting) {
4273 TAINT_ENV();
4274 while (++MARK <= SP) {
4275 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4276 if (PL_tainted)
bbd7eb8a
RD		 4277 break;
4278 }
4279 MARK = ORIGMARK;
5a445156 4280 TAINT_PROPER("exec");
bbd7eb8a 4281 }
45bc9206 4282 PERL_FLUSHALL_FOR_CHILD;
533c011a 4283 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4284 SV *really = *++MARK;
4285 value = (I32)do_aexec(really, MARK, SP);
4286 }
4287 else if (SP - MARK != 1)
4288#ifdef VMS
4289 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4290#else
092bebab
JH		 4291# ifdef __OPEN_VM
4292 {
c5be433b 4293 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4294 value = 0;
4295 }
4296# else
a0d0e21e 4297 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4298# endif
a0d0e21e
LW		 4299#endif
4300 else {
a0d0e21e 4301#ifdef VMS
2d8e6c8d 4302 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4303#else
092bebab 4304# ifdef __OPEN_VM
c5be433b 4305 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4306 value = 0;
4307# else
2d8e6c8d 4308 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4309# endif
a0d0e21e
LW		 4310#endif
4311 }
146174a9 4312
a0d0e21e
LW		 4313 SP = ORIGMARK;
4314 PUSHi(value);
4315 RETURN;
4316}
4317
4318PP(pp_kill)
4319{
9cad6237 4320#ifdef HAS_KILL
39644a26 4321 dSP; dMARK; dTARGET;
a0d0e21e 4322 I32 value;
533c011a 4323 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4324 SP = MARK;
4325 PUSHi(value);
4326 RETURN;
4327#else
0322a713 4328 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4329#endif
4330}
4331
4332PP(pp_getppid)
4333{
4334#ifdef HAS_GETPPID
39644a26 4335 dSP; dTARGET;
4d76a344
RGS		 4336# ifdef THREADS_HAVE_PIDS
4337 XPUSHi( PL_ppid );
4338# else
a0d0e21e 4339 XPUSHi( getppid() );
4d76a344 4340# endif
a0d0e21e
LW		 4341 RETURN;
4342#else
cea2e8a9 4343 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4344#endif
4345}
4346
4347PP(pp_getpgrp)
4348{
4349#ifdef HAS_GETPGRP
39644a26 4350 dSP; dTARGET;
d8a83dd3 4351 Pid_t pid;
9853a804 4352 Pid_t pgrp;
a0d0e21e
LW		 4353
4354 if (MAXARG < 1)
4355 pid = 0;
4356 else
4357 pid = SvIVx(POPs);
c3293030 4358#ifdef BSD_GETPGRP
9853a804 4359 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4360#else
146174a9 4361 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4362 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4363 pgrp = getpgrp();
a0d0e21e 4364#endif
9853a804 4365 XPUSHi(pgrp);
a0d0e21e
LW		 4366 RETURN;
4367#else
cea2e8a9 4368 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4369#endif
4370}
4371
4372PP(pp_setpgrp)
4373{
4374#ifdef HAS_SETPGRP
39644a26 4375 dSP; dTARGET;
d8a83dd3
JH		 4376 Pid_t pgrp;
4377 Pid_t pid;
a0d0e21e
LW		 4378 if (MAXARG < 2) {
4379 pgrp = 0;
4380 pid = 0;
4381 }
4382 else {
4383 pgrp = POPi;
4384 pid = TOPi;
4385 }
4386
4387 TAINT_PROPER("setpgrp");
c3293030
IZ		 4388#ifdef BSD_SETPGRP
4389 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4390#else
146174a9
CB		 4391 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4392 || (pid != 0 && pid != PerlProc_getpid()))
4393 {
4394 DIE(aTHX_ "setpgrp can't take arguments");
4395 }
a0d0e21e
LW		 4396 SETi( setpgrp() >= 0 );
4397#endif /* USE_BSDPGRP */
4398 RETURN;
4399#else
cea2e8a9 4400 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4401#endif
4402}
4403
4404PP(pp_getpriority)
4405{
a0d0e21e 4406#ifdef HAS_GETPRIORITY
9cad6237 4407 dSP; dTARGET;
d05c1ba0
JH		 4408 int who = POPi;
4409 int which = TOPi;
a0d0e21e
LW		 4410 SETi( getpriority(which, who) );
4411 RETURN;
4412#else
cea2e8a9 4413 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4414#endif
4415}
4416
4417PP(pp_setpriority)
4418{
a0d0e21e 4419#ifdef HAS_SETPRIORITY
9cad6237 4420 dSP; dTARGET;
d05c1ba0
JH		 4421 int niceval = POPi;
4422 int who = POPi;
4423 int which = TOPi;
a0d0e21e
LW		 4424 TAINT_PROPER("setpriority");
4425 SETi( setpriority(which, who, niceval) >= 0 );
4426 RETURN;
4427#else
cea2e8a9 4428 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4429#endif
4430}
4431
4432/* Time calls. */
4433
4434PP(pp_time)
4435{
39644a26 4436 dSP; dTARGET;
cbdc8872 4437#ifdef BIG_TIME
4438 XPUSHn( time(Null(Time_t*)) );
4439#else
a0d0e21e 4440 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4441#endif
a0d0e21e
LW		 4442 RETURN;
4443}
4444
a0d0e21e
LW		 4445PP(pp_tms)
4446{
9cad6237 4447#ifdef HAS_TIMES
39644a26 4448 dSP;
a0d0e21e 4449 EXTEND(SP, 4);
a0d0e21e 4450#ifndef VMS
3280af22 4451 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4452#else
6b88bc9c 4453 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4454 /* struct tms, though same data */
4455 /* is returned. */
a0d0e21e
LW		 4456#endif
4457
5311654c 4458 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4459 if (GIMME == G_ARRAY) {
5311654c
JH		 4460 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4461 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4462 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4463 }
4464 RETURN;
9cad6237 4465#else
2f42fcb0
JH		 4466# ifdef PERL_MICRO
4467 dSP;
4468 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4469 EXTEND(SP, 4);
4470 if (GIMME == G_ARRAY) {
4471 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4472 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4473 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4474 }
4475 RETURN;
4476# else
9cad6237 4477 DIE(aTHX_ "times not implemented");
2f42fcb0 4478# endif
55497cff 4479#endif /* HAS_TIMES */
a0d0e21e
LW		 4480}
4481
4482PP(pp_localtime)
4483{
cea2e8a9 4484 return pp_gmtime();
a0d0e21e
LW		 4485}
4486
4487PP(pp_gmtime)
4488{
39644a26 4489 dSP;
a0d0e21e
LW		 4490 Time_t when;
4491 struct tm *tmbuf;
4492 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4493 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4494 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4495
4496 if (MAXARG < 1)
4497 (void)time(&when);
4498 else
cbdc8872 4499#ifdef BIG_TIME
4500 when = (Time_t)SvNVx(POPs);
4501#else
a0d0e21e 4502 when = (Time_t)SvIVx(POPs);
cbdc8872 4503#endif
a0d0e21e 4504
533c011a 4505 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4506 tmbuf = localtime(&when);
4507 else
4508 tmbuf = gmtime(&when);
4509
a0d0e21e 4510 if (GIMME != G_ARRAY) {
46fc3d4c 4511 SV *tsv;
9a5ff6d9
AB		 4512 EXTEND(SP, 1);
4513 EXTEND_MORTAL(1);
a0d0e21e
LW		 4514 if (!tmbuf)
4515 RETPUSHUNDEF;
be28567c 4516 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4517 dayname[tmbuf->tm_wday],
4518 monname[tmbuf->tm_mon],
be28567c
GS		 4519 tmbuf->tm_mday,
4520 tmbuf->tm_hour,
4521 tmbuf->tm_min,
4522 tmbuf->tm_sec,
4523 tmbuf->tm_year + 1900);
46fc3d4c 4524 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4525 }
4526 else if (tmbuf) {
9a5ff6d9
AB		 4527 EXTEND(SP, 9);
4528 EXTEND_MORTAL(9);
4529 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4530 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4531 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4532 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4533 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4534 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4535 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4536 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4537 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4538 }
4539 RETURN;
4540}
4541
4542PP(pp_alarm)
4543{
9cad6237 4544#ifdef HAS_ALARM
39644a26 4545 dSP; dTARGET;
a0d0e21e 4546 int anum;
a0d0e21e
LW		 4547 anum = POPi;
4548 anum = alarm((unsigned int)anum);
4549 EXTEND(SP, 1);
4550 if (anum < 0)
4551 RETPUSHUNDEF;
c6419e06 4552 PUSHi(anum);
a0d0e21e
LW		 4553 RETURN;
4554#else
0322a713 4555 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4556#endif
4557}
4558
4559PP(pp_sleep)
4560{
39644a26 4561 dSP; dTARGET;
a0d0e21e
LW		 4562 I32 duration;
4563 Time_t lasttime;
4564 Time_t when;
4565
4566 (void)time(&lasttime);
4567 if (MAXARG < 1)
76e3520e 4568 PerlProc_pause();
a0d0e21e
LW		 4569 else {
4570 duration = POPi;
76e3520e 4571 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4572 }
4573 (void)time(&when);
4574 XPUSHi(when - lasttime);
4575 RETURN;
4576}
4577
4578/* Shared memory. */
4579
4580PP(pp_shmget)
4581{
cea2e8a9 4582 return pp_semget();
a0d0e21e
LW		 4583}
4584
4585PP(pp_shmctl)
4586{
cea2e8a9 4587 return pp_semctl();
a0d0e21e
LW		 4588}
4589
4590PP(pp_shmread)
4591{
cea2e8a9 4592 return pp_shmwrite();
a0d0e21e
LW		 4593}
4594
4595PP(pp_shmwrite)
4596{
4597#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4598 dSP; dMARK; dTARGET;
533c011a 4599 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4600 SP = MARK;
4601 PUSHi(value);
4602 RETURN;
4603#else
cea2e8a9 4604 return pp_semget();
a0d0e21e
LW		 4605#endif
4606}
4607
4608/* Message passing. */
4609
4610PP(pp_msgget)
4611{
cea2e8a9 4612 return pp_semget();
a0d0e21e
LW		 4613}
4614
4615PP(pp_msgctl)
4616{
cea2e8a9 4617 return pp_semctl();
a0d0e21e
LW		 4618}
4619
4620PP(pp_msgsnd)
4621{
4622#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4623 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4624 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4625 SP = MARK;
4626 PUSHi(value);
4627 RETURN;
4628#else
cea2e8a9 4629 return pp_semget();
a0d0e21e
LW		 4630#endif
4631}
4632
4633PP(pp_msgrcv)
4634{
4635#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4636 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4637 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4638 SP = MARK;
4639 PUSHi(value);
4640 RETURN;
4641#else
cea2e8a9 4642 return pp_semget();
a0d0e21e
LW		 4643#endif
4644}
4645
4646/* Semaphores. */
4647
4648PP(pp_semget)
4649{
4650#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4651 dSP; dMARK; dTARGET;
533c011a 4652 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4653 SP = MARK;
4654 if (anum == -1)
4655 RETPUSHUNDEF;
4656 PUSHi(anum);
4657 RETURN;
4658#else
cea2e8a9 4659 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4660#endif
4661}
4662
4663PP(pp_semctl)
4664{
4665#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4666 dSP; dMARK; dTARGET;
533c011a 4667 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4668 SP = MARK;
4669 if (anum == -1)
4670 RETSETUNDEF;
4671 if (anum != 0) {
4672 PUSHi(anum);
4673 }
4674 else {
8903cb82 4675 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4676 }
4677 RETURN;
4678#else
cea2e8a9 4679 return pp_semget();
a0d0e21e
LW		 4680#endif
4681}
4682
4683PP(pp_semop)
4684{
4685#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4686 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4687 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4688 SP = MARK;
4689 PUSHi(value);
4690 RETURN;
4691#else
cea2e8a9 4692 return pp_semget();
a0d0e21e
LW		 4693#endif
4694}
4695
4696/* Get system info. */
4697
4698PP(pp_ghbyname)
4699{
693762b4 4700#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4701 return pp_ghostent();
a0d0e21e 4702#else
cea2e8a9 4703 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4704#endif
4705}
4706
4707PP(pp_ghbyaddr)
4708{
693762b4 4709#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4710 return pp_ghostent();
a0d0e21e 4711#else
cea2e8a9 4712 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4713#endif
4714}
4715
4716PP(pp_ghostent)
4717{
693762b4 4718#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4719 dSP;
533c011a 4720 I32 which = PL_op->op_type;
a0d0e21e
LW		 4721 register char **elem;
4722 register SV *sv;
dc45a647 4723#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4724 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4725 struct hostent *gethostbyname(Netdb_name_t);
4726 struct hostent *gethostent(void);
a0d0e21e
LW		 4727#endif
4728 struct hostent *hent;
4729 unsigned long len;
2d8e6c8d 4730 STRLEN n_a;
a0d0e21e
LW		 4731
4732 EXTEND(SP, 10);
edd309b7 4733 if (which == OP_GHBYNAME) {
dc45a647 4734#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4735 char* name = POPpbytex;
4736 hent = PerlSock_gethostbyname(name);
dc45a647 4737#else
cea2e8a9 4738 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4739#endif
edd309b7 4740 }
a0d0e21e 4741 else if (which == OP_GHBYADDR) {
dc45a647 4742#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4743 int addrtype = POPi;
748a9306 4744 SV *addrsv = POPs;
a0d0e21e 4745 STRLEN addrlen;
595ae481 4746 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4747
4599a1de 4748 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4749#else
cea2e8a9 4750 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4751#endif
a0d0e21e
LW		 4752 }
4753 else
4754#ifdef HAS_GETHOSTENT
6ad3d225 4755 hent = PerlSock_gethostent();
a0d0e21e 4756#else
cea2e8a9 4757 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4758#endif
4759
4760#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4761 if (!hent) {
4762#ifdef USE_REENTRANT_API
4763# ifdef USE_GETHOSTENT_ERRNO
4764 h_errno = PL_reentrant_buffer->_gethostent_errno;
4765# endif
4766#endif
4767 STATUS_NATIVE_SET(h_errno);
4768 }
a0d0e21e
LW		 4769#endif
4770
4771 if (GIMME != G_ARRAY) {
4772 PUSHs(sv = sv_newmortal());
4773 if (hent) {
4774 if (which == OP_GHBYNAME) {
fd0af264 4775 if (hent->h_addr)
4776 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4777 }
4778 else
4779 sv_setpv(sv, (char*)hent->h_name);
4780 }
4781 RETURN;
4782 }
4783
4784 if (hent) {
3280af22 4785 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4786 sv_setpv(sv, (char*)hent->h_name);
3280af22 4787 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4788 for (elem = hent->h_aliases; elem && *elem; elem++) {
4789 sv_catpv(sv, *elem);
4790 if (elem[1])
4791 sv_catpvn(sv, " ", 1);
4792 }
3280af22 4793 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4794 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4795 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4796 len = hent->h_length;
1e422769 4797 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4798#ifdef h_addr
4799 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4800 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4801 sv_setpvn(sv, *elem, len);
4802 }
4803#else
6b88bc9c 4804 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4805 if (hent->h_addr)
4806 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4807#endif /* h_addr */
4808 }
4809 RETURN;
4810#else
cea2e8a9 4811 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4812#endif
4813}
4814
4815PP(pp_gnbyname)
4816{
693762b4 4817#ifdef HAS_GETNETBYNAME
cea2e8a9 4818 return pp_gnetent();
a0d0e21e 4819#else
cea2e8a9 4820 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4821#endif
4822}
4823
4824PP(pp_gnbyaddr)
4825{
693762b4 4826#ifdef HAS_GETNETBYADDR
cea2e8a9 4827 return pp_gnetent();
a0d0e21e 4828#else
cea2e8a9 4829 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4830#endif
4831}
4832
4833PP(pp_gnetent)
4834{
693762b4 4835#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4836 dSP;
533c011a 4837 I32 which = PL_op->op_type;
a0d0e21e
LW		 4838 register char **elem;
4839 register SV *sv;
dc45a647 4840#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4841 struct netent *getnetbyaddr(Netdb_net_t, int);
4842 struct netent *getnetbyname(Netdb_name_t);
4843 struct netent *getnetent(void);
8ac85365 4844#endif
a0d0e21e 4845 struct netent *nent;
2d8e6c8d 4846 STRLEN n_a;
a0d0e21e 4847
edd309b7 4848 if (which == OP_GNBYNAME){
dc45a647 4849#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4850 char *name = POPpbytex;
4851 nent = PerlSock_getnetbyname(name);
dc45a647 4852#else
cea2e8a9 4853 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4854#endif
edd309b7 4855 }
a0d0e21e 4856 else if (which == OP_GNBYADDR) {
dc45a647 4857#ifdef HAS_GETNETBYADDR
a0d0e21e 4858 int addrtype = POPi;
3bb7c1b4 4859 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4860 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4861#else
cea2e8a9 4862 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4863#endif
a0d0e21e
LW		 4864 }
4865 else
dc45a647 4866#ifdef HAS_GETNETENT
76e3520e 4867 nent = PerlSock_getnetent();
dc45a647 4868#else
cea2e8a9 4869 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4870#endif
a0d0e21e 4871
10bc17b6
JH		 4872#ifdef HOST_NOT_FOUND
4873 if (!nent) {
4874#ifdef USE_REENTRANT_API
4875# ifdef USE_GETNETENT_ERRNO
4876 h_errno = PL_reentrant_buffer->_getnetent_errno;
4877# endif
4878#endif
4879 STATUS_NATIVE_SET(h_errno);
4880 }
4881#endif
4882
a0d0e21e
LW		 4883 EXTEND(SP, 4);
4884 if (GIMME != G_ARRAY) {
4885 PUSHs(sv = sv_newmortal());
4886 if (nent) {
4887 if (which == OP_GNBYNAME)
1e422769 4888 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4889 else
4890 sv_setpv(sv, nent->n_name);
4891 }
4892 RETURN;
4893 }
4894
4895 if (nent) {
3280af22 4896 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4897 sv_setpv(sv, nent->n_name);
3280af22 4898 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4899 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4900 sv_catpv(sv, *elem);
4901 if (elem[1])
4902 sv_catpvn(sv, " ", 1);
4903 }
3280af22 4904 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4905 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4906 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4907 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4908 }
4909
4910 RETURN;
4911#else
cea2e8a9 4912 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4913#endif
4914}
4915
4916PP(pp_gpbyname)
4917{
693762b4 4918#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4919 return pp_gprotoent();
a0d0e21e 4920#else
cea2e8a9 4921 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4922#endif
4923}
4924
4925PP(pp_gpbynumber)
4926{
693762b4 4927#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4928 return pp_gprotoent();
a0d0e21e 4929#else
cea2e8a9 4930 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4931#endif
4932}
4933
4934PP(pp_gprotoent)
4935{
693762b4 4936#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4937 dSP;
533c011a 4938 I32 which = PL_op->op_type;
a0d0e21e 4939 register char **elem;
301e8125 4940 register SV *sv;
dc45a647 4941#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4942 struct protoent *getprotobyname(Netdb_name_t);
4943 struct protoent *getprotobynumber(int);
4944 struct protoent *getprotoent(void);
8ac85365 4945#endif
a0d0e21e 4946 struct protoent *pent;
2d8e6c8d 4947 STRLEN n_a;
a0d0e21e 4948
edd309b7 4949 if (which == OP_GPBYNAME) {
e5c9fcd0 4950#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4951 char* name = POPpbytex;
4952 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4953#else
cea2e8a9 4954 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4955#endif
edd309b7
JH		 4956 }
4957 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4958#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4959 int number = POPi;
4960 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4961#else
edd309b7 4962 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4963#endif
edd309b7 4964 }
a0d0e21e 4965 else
e5c9fcd0 4966#ifdef HAS_GETPROTOENT
6ad3d225 4967 pent = PerlSock_getprotoent();
e5c9fcd0 4968#else
cea2e8a9 4969 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4970#endif
a0d0e21e
LW		 4971
4972 EXTEND(SP, 3);
4973 if (GIMME != G_ARRAY) {
4974 PUSHs(sv = sv_newmortal());
4975 if (pent) {
4976 if (which == OP_GPBYNAME)
1e422769 4977 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4978 else
4979 sv_setpv(sv, pent->p_name);
4980 }
4981 RETURN;
4982 }
4983
4984 if (pent) {
3280af22 4985 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4986 sv_setpv(sv, pent->p_name);
3280af22 4987 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4988 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4989 sv_catpv(sv, *elem);
4990 if (elem[1])
4991 sv_catpvn(sv, " ", 1);
4992 }
3280af22 4993 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4994 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4995 }
4996
4997 RETURN;
4998#else
cea2e8a9 4999 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5000#endif
5001}
5002
5003PP(pp_gsbyname)
5004{
9ec75305 5005#ifdef HAS_GETSERVBYNAME
cea2e8a9 5006 return pp_gservent();
a0d0e21e 5007#else
cea2e8a9 5008 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5009#endif
5010}
5011
5012PP(pp_gsbyport)
5013{
9ec75305 5014#ifdef HAS_GETSERVBYPORT
cea2e8a9 5015 return pp_gservent();
a0d0e21e 5016#else
cea2e8a9 5017 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5018#endif
5019}
5020
5021PP(pp_gservent)
5022{
693762b4 5023#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5024 dSP;
533c011a 5025 I32 which = PL_op->op_type;
a0d0e21e
LW		 5026 register char **elem;
5027 register SV *sv;
dc45a647 5028#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5029 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5030 struct servent *getservbyport(int, Netdb_name_t);
5031 struct servent *getservent(void);
8ac85365 5032#endif
a0d0e21e 5033 struct servent *sent;
2d8e6c8d 5034 STRLEN n_a;
a0d0e21e
LW		 5035
5036 if (which == OP_GSBYNAME) {
dc45a647 5037#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5038 char *proto = POPpbytex;
5039 char *name = POPpbytex;
a0d0e21e
LW		 5040
5041 if (proto && !*proto)
5042 proto = Nullch;
5043
6ad3d225 5044 sent = PerlSock_getservbyname(name, proto);
dc45a647 5045#else
cea2e8a9 5046 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5047#endif
a0d0e21e
LW		 5048 }
5049 else if (which == OP_GSBYPORT) {
dc45a647 5050#ifdef HAS_GETSERVBYPORT
42e0c139 5051 char *proto = POPpbytex;
eb160463 5052 unsigned short port = (unsigned short)POPu;
a0d0e21e 5053
2b872cca
SR		 5054 if (proto && !*proto)
5055 proto = Nullch;
5056
36477c24 5057#ifdef HAS_HTONS
6ad3d225 5058 port = PerlSock_htons(port);
36477c24 5059#endif
6ad3d225 5060 sent = PerlSock_getservbyport(port, proto);
dc45a647 5061#else
cea2e8a9 5062 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5063#endif
a0d0e21e
LW		 5064 }
5065 else
e5c9fcd0 5066#ifdef HAS_GETSERVENT
6ad3d225 5067 sent = PerlSock_getservent();
e5c9fcd0 5068#else
cea2e8a9 5069 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5070#endif
a0d0e21e
LW		 5071
5072 EXTEND(SP, 4);
5073 if (GIMME != G_ARRAY) {
5074 PUSHs(sv = sv_newmortal());
5075 if (sent) {
5076 if (which == OP_GSBYNAME) {
5077#ifdef HAS_NTOHS
6ad3d225 5078 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5079#else
1e422769 5080 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5081#endif
5082 }
5083 else
5084 sv_setpv(sv, sent->s_name);
5085 }
5086 RETURN;
5087 }
5088
5089 if (sent) {
3280af22 5090 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5091 sv_setpv(sv, sent->s_name);
3280af22 5092 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5093 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5094 sv_catpv(sv, *elem);
5095 if (elem[1])
5096 sv_catpvn(sv, " ", 1);
5097 }
3280af22 5098 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5099#ifdef HAS_NTOHS
76e3520e 5100 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5101#else
1e422769 5102 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5103#endif
3280af22 5104 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5105 sv_setpv(sv, sent->s_proto);
5106 }
5107
5108 RETURN;
5109#else
cea2e8a9 5110 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5111#endif
5112}
5113
5114PP(pp_shostent)
5115{
693762b4 5116#ifdef HAS_SETHOSTENT
9cad6237 5117 dSP;
76e3520e 5118 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5119 RETSETYES;
5120#else
cea2e8a9 5121 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5122#endif
5123}
5124
5125PP(pp_snetent)
5126{
693762b4 5127#ifdef HAS_SETNETENT
9cad6237 5128 dSP;
76e3520e 5129 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5130 RETSETYES;
5131#else
cea2e8a9 5132 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5133#endif
5134}
5135
5136PP(pp_sprotoent)
5137{
693762b4 5138#ifdef HAS_SETPROTOENT
9cad6237 5139 dSP;
76e3520e 5140 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5141 RETSETYES;
5142#else
cea2e8a9 5143 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5144#endif
5145}
5146
5147PP(pp_sservent)
5148{
693762b4 5149#ifdef HAS_SETSERVENT
9cad6237 5150 dSP;
76e3520e 5151 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5152 RETSETYES;
5153#else
cea2e8a9 5154 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5155#endif
5156}
5157
5158PP(pp_ehostent)
5159{
693762b4 5160#ifdef HAS_ENDHOSTENT
9cad6237 5161 dSP;
76e3520e 5162 PerlSock_endhostent();
924508f0 5163 EXTEND(SP,1);
a0d0e21e
LW		 5164 RETPUSHYES;
5165#else
cea2e8a9 5166 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5167#endif
5168}
5169
5170PP(pp_enetent)
5171{
693762b4 5172#ifdef HAS_ENDNETENT
9cad6237 5173 dSP;
76e3520e 5174 PerlSock_endnetent();
924508f0 5175 EXTEND(SP,1);
a0d0e21e
LW		 5176 RETPUSHYES;
5177#else
cea2e8a9 5178 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5179#endif
5180}
5181
5182PP(pp_eprotoent)
5183{
693762b4 5184#ifdef HAS_ENDPROTOENT
9cad6237 5185 dSP;
76e3520e 5186 PerlSock_endprotoent();
924508f0 5187 EXTEND(SP,1);
a0d0e21e
LW		 5188 RETPUSHYES;
5189#else
cea2e8a9 5190 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5191#endif
5192}
5193
5194PP(pp_eservent)
5195{
693762b4 5196#ifdef HAS_ENDSERVENT
9cad6237 5197 dSP;
76e3520e 5198 PerlSock_endservent();
924508f0 5199 EXTEND(SP,1);
a0d0e21e
LW		 5200 RETPUSHYES;
5201#else
cea2e8a9 5202 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5203#endif
5204}
5205
5206PP(pp_gpwnam)
5207{
5208#ifdef HAS_PASSWD
cea2e8a9 5209 return pp_gpwent();
a0d0e21e 5210#else
cea2e8a9 5211 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5212#endif
5213}
5214
5215PP(pp_gpwuid)
5216{
5217#ifdef HAS_PASSWD
cea2e8a9 5218 return pp_gpwent();
a0d0e21e 5219#else
cea2e8a9 5220 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5221#endif
5222}
5223
5224PP(pp_gpwent)
5225{
0994c4d0 5226#ifdef HAS_PASSWD
9cad6237 5227 dSP;
533c011a 5228 I32 which = PL_op->op_type;
a0d0e21e 5229 register SV *sv;
2d8e6c8d 5230 STRLEN n_a;
e3aefe8d 5231 struct passwd *pwent = NULL;
301e8125 5232 /*
bcf53261
JH		 5233 * We currently support only the SysV getsp* shadow password interface.
5234 * The interface is declared in <shadow.h> and often one needs to link
5235 * with -lsecurity or some such.
5236 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5237 * (and SCO?)
5238 *
5239 * AIX getpwnam() is clever enough to return the encrypted password
5240 * only if the caller (euid?) is root.
5241 *
e549f1c5 5242 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5243 * seem to contain more than one interface for accessing the shadow
5244 * password databases, possibly for compatibility reasons.
3813c136 5245 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5246 * are much more complicated, but also very similar to each other.
5247 *
5248 * <sys/types.h>
5249 * <sys/security.h>
5250 * <prot.h>
5251 * struct pr_passwd *getprpw*();
5252 * The password is in
3813c136
JH		 5253 * char getprpw*(...).ufld.fd_encrypt[]
5254 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5255 *
5256 * <sys/types.h>
5257 * <sys/security.h>
5258 * <prot.h>
5259 * struct es_passwd *getespw*();
5260 * The password is in
5261 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5262 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5263 *
e1920a95 5264 * <userpw.h> (AIX)
e549f1c5
JH		 5265 * struct userpw *getuserpw();
5266 * The password is in
5267 * char *(getuserpw(...)).spw_upw_passwd
5268 * (but the de facto standard getpwnam() should work okay)
5269 *
3813c136 5270 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5271 *
5272 * In HP-UX for getprpw*() the manual page claims that one should include
5273 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5274 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5275 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5276 *
5277 * Note that <sys/security.h> is already probed for, but currently
5278 * it is only included in special cases.
301e8125 5279 *
bcf53261
JH		 5280 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5281 * be preferred interface, even though also the getprpw*() interface
5282 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5283 * One also needs to call set_auth_parameters() in main() before
5284 * doing anything else, whether one is using getespw*() or getprpw*().
5285 *
5286 * Note that accessing the shadow databases can be magnitudes
5287 * slower than accessing the standard databases.
bcf53261
JH		 5288 *
5289 * --jhi
5290 */
a0d0e21e 5291
9e5f0c48
JH		 5292# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5293 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5294 * the pw_comment is left uninitialized. */
5295 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5296# endif
5297
e3aefe8d
JH		 5298 switch (which) {
5299 case OP_GPWNAM:
edd309b7
JH		 5300 {
5301 char* name = POPpbytex;
5302 pwent = getpwnam(name);
5303 }
5304 break;
e3aefe8d 5305 case OP_GPWUID:
edd309b7
JH		 5306 {
5307 Uid_t uid = POPi;
5308 pwent = getpwuid(uid);
5309 }
e3aefe8d
JH		 5310 break;
5311 case OP_GPWENT:
1883634f 5312# ifdef HAS_GETPWENT
e3aefe8d 5313 pwent = getpwent();
faea9016
IRC		 5314#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5315 if (pwent) pwent = getpwnam(pwent->pw_name);
5316#endif
1883634f 5317# else
a45d1c96 5318 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5319# endif
e3aefe8d
JH		 5320 break;
5321 }
8c0bfa08 5322
a0d0e21e
LW		 5323 EXTEND(SP, 10);
5324 if (GIMME != G_ARRAY) {
5325 PUSHs(sv = sv_newmortal());
5326 if (pwent) {
5327 if (which == OP_GPWNAM)
1883634f 5328# if Uid_t_sign <= 0
1e422769 5329 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5330# else
23dcd6c8 5331 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5332# endif
a0d0e21e
LW		 5333 else
5334 sv_setpv(sv, pwent->pw_name);
5335 }
5336 RETURN;
5337 }
5338
5339 if (pwent) {
3280af22 5340 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5341 sv_setpv(sv, pwent->pw_name);
6ee623d5 5342
3280af22 5343 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5344 SvPOK_off(sv);
5345 /* If we have getspnam(), we try to dig up the shadow
5346 * password. If we are underprivileged, the shadow
5347 * interface will set the errno to EACCES or similar,
5348 * and return a null pointer. If this happens, we will
5349 * use the dummy password (usually "*" or "x") from the
5350 * standard password database.
5351 *
5352 * In theory we could skip the shadow call completely
5353 * if euid != 0 but in practice we cannot know which
5354 * security measures are guarding the shadow databases
5355 * on a random platform.
5356 *
5357 * Resist the urge to use additional shadow interfaces.
5358 * Divert the urge to writing an extension instead.
5359 *
5360 * --jhi */
e549f1c5
JH		 5361 /* Some AIX setups falsely(?) detect some getspnam(), which
5362 * has a different API than the Solaris/IRIX one. */
5363# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5364 {
5365 struct spwd *spwent;
5366 int saverrno; /* Save and restore errno so that
5367 * underprivileged attempts seem
5368 * to have never made the unsccessful
5369 * attempt to retrieve the shadow password. */
5370
5371 saverrno = errno;
5372 spwent = getspnam(pwent->pw_name);
5373 errno = saverrno;
5374 if (spwent && spwent->sp_pwdp)
5375 sv_setpv(sv, spwent->sp_pwdp);
5376 }
f1066039 5377# endif
e020c87d 5378# ifdef PWPASSWD
3813c136
JH		 5379 if (!SvPOK(sv)) /* Use the standard password, then. */
5380 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5381# endif
3813c136 5382
1883634f 5383# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5384 /* passwd is tainted because user himself can diddle with it.
5385 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5386 SvTAINTED_on(sv);
1883634f 5387# endif
6ee623d5 5388
3280af22 5389 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5390# if Uid_t_sign <= 0
1e422769 5391 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5392# else
23dcd6c8 5393 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5394# endif
6ee623d5 5395
3280af22 5396 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5397# if Uid_t_sign <= 0
1e422769 5398 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5399# else
23dcd6c8 5400 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5401# endif
3813c136
JH		 5402 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5403 * because of the poor interface of the Perl getpw*(),
5404 * not because there's some standard/convention saying so.
5405 * A better interface would have been to return a hash,
5406 * but we are accursed by our history, alas. --jhi. */
3280af22 5407 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5408# ifdef PWCHANGE
1e422769 5409 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5410# else
1883634f
JH		 5411# ifdef PWQUOTA
5412 sv_setiv(sv, (IV)pwent->pw_quota);
5413# else
a1757be1 5414# ifdef PWAGE
a0d0e21e 5415 sv_setpv(sv, pwent->pw_age);
a1757be1 5416# endif
6ee623d5
GS		 5417# endif
5418# endif
6ee623d5 5419
3813c136
JH		 5420 /* pw_class and pw_comment are mutually exclusive--.
5421 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5422 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5423# ifdef PWCLASS
a0d0e21e 5424 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5425# else
5426# ifdef PWCOMMENT
a0d0e21e 5427 sv_setpv(sv, pwent->pw_comment);
1883634f 5428# endif
6ee623d5 5429# endif
6ee623d5 5430
3280af22 5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5432# ifdef PWGECOS
a0d0e21e 5433 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5434# endif
5435# ifndef INCOMPLETE_TAINTS
d2719217 5436 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5437 SvTAINTED_on(sv);
1883634f 5438# endif
6ee623d5 5439
3280af22 5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5441 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5442
3280af22 5443 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5444 sv_setpv(sv, pwent->pw_shell);
1883634f 5445# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5446 /* pw_shell is tainted because user himself can diddle with it. */
5447 SvTAINTED_on(sv);
1883634f 5448# endif
6ee623d5 5449
1883634f 5450# ifdef PWEXPIRE
6b88bc9c 5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5452 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5453# endif
a0d0e21e
LW		 5454 }
5455 RETURN;
5456#else
cea2e8a9 5457 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5458#endif
5459}
5460
5461PP(pp_spwent)
5462{
d493b042 5463#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5464 dSP;
a0d0e21e
LW		 5465 setpwent();
5466 RETPUSHYES;
5467#else
cea2e8a9 5468 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5469#endif
5470}
5471
5472PP(pp_epwent)
5473{
28e8609d 5474#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5475 dSP;
a0d0e21e
LW		 5476 endpwent();
5477 RETPUSHYES;
5478#else
cea2e8a9 5479 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5480#endif
5481}
5482
5483PP(pp_ggrnam)
5484{
5485#ifdef HAS_GROUP
cea2e8a9 5486 return pp_ggrent();
a0d0e21e 5487#else
cea2e8a9 5488 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5489#endif
5490}
5491
5492PP(pp_ggrgid)
5493{
5494#ifdef HAS_GROUP
cea2e8a9 5495 return pp_ggrent();
a0d0e21e 5496#else
cea2e8a9 5497 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5498#endif
5499}
5500
5501PP(pp_ggrent)
5502{
0994c4d0 5503#ifdef HAS_GROUP
9cad6237 5504 dSP;
533c011a 5505 I32 which = PL_op->op_type;
a0d0e21e
LW		 5506 register char **elem;
5507 register SV *sv;
5508 struct group *grent;
2d8e6c8d 5509 STRLEN n_a;
a0d0e21e 5510
edd309b7
JH		 5511 if (which == OP_GGRNAM) {
5512 char* name = POPpbytex;
5513 grent = (struct group *)getgrnam(name);
5514 }
5515 else if (which == OP_GGRGID) {
5516 Gid_t gid = POPi;
5517 grent = (struct group *)getgrgid(gid);
5518 }
a0d0e21e 5519 else
0994c4d0 5520#ifdef HAS_GETGRENT
a0d0e21e 5521 grent = (struct group *)getgrent();
0994c4d0
JH		 5522#else
5523 DIE(aTHX_ PL_no_func, "getgrent");
5524#endif
a0d0e21e
LW		 5525
5526 EXTEND(SP, 4);
5527 if (GIMME != G_ARRAY) {
5528 PUSHs(sv = sv_newmortal());
5529 if (grent) {
5530 if (which == OP_GGRNAM)
1e422769 5531 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5532 else
5533 sv_setpv(sv, grent->gr_name);
5534 }
5535 RETURN;
5536 }
5537
5538 if (grent) {
3280af22 5539 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5540 sv_setpv(sv, grent->gr_name);
28e8609d 5541
3280af22 5542 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5543#ifdef GRPASSWD
a0d0e21e 5544 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5545#endif
5546
3280af22 5547 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5548 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5549
5b56e7c5 5550#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5551 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5552 /* In UNICOS/mk (_CRAYMPP) the multithreading
5553 * versions (getgrnam_r, getgrgid_r)
5554 * seem to return an illegal pointer
5555 * as the group members list, gr_mem.
5556 * getgrent() doesn't even have a _r version
5557 * but the gr_mem is poisonous anyway.
5558 * So yes, you cannot get the list of group
5559 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5560 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5561 sv_catpv(sv, *elem);
5562 if (elem[1])
5563 sv_catpvn(sv, " ", 1);
5564 }
3d7e8424 5565#endif
a0d0e21e
LW		 5566 }
5567
5568 RETURN;
5569#else
cea2e8a9 5570 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5571#endif
5572}
5573
5574PP(pp_sgrent)
5575{
28e8609d 5576#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5577 dSP;
a0d0e21e
LW		 5578 setgrent();
5579 RETPUSHYES;
5580#else
cea2e8a9 5581 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5582#endif
5583}
5584
5585PP(pp_egrent)
5586{
28e8609d 5587#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5588 dSP;
a0d0e21e
LW		 5589 endgrent();
5590 RETPUSHYES;
5591#else
cea2e8a9 5592 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5593#endif
5594}
5595
5596PP(pp_getlogin)
5597{
a0d0e21e 5598#ifdef HAS_GETLOGIN
9cad6237 5599 dSP; dTARGET;
a0d0e21e
LW		 5600 char *tmps;
5601 EXTEND(SP, 1);
76e3520e 5602 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5603 RETPUSHUNDEF;
5604 PUSHp(tmps, strlen(tmps));
5605 RETURN;
5606#else
cea2e8a9 5607 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5608#endif
5609}
5610
5611/* Miscellaneous. */
5612
5613PP(pp_syscall)
5614{
d2719217 5615#ifdef HAS_SYSCALL
39644a26 5616 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5617 register I32 items = SP - MARK;
5618 unsigned long a[20];
5619 register I32 i = 0;
5620 I32 retval = -1;
2d8e6c8d 5621 STRLEN n_a;
a0d0e21e 5622
3280af22 5623 if (PL_tainting) {
a0d0e21e 5624 while (++MARK <= SP) {
bbce6d69 5625 if (SvTAINTED(*MARK)) {
5626 TAINT;
5627 break;
5628 }
a0d0e21e
LW		 5629 }
5630 MARK = ORIGMARK;
5631 TAINT_PROPER("syscall");
5632 }
5633
5634 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5635 * or where sizeof(long) != sizeof(char*). But such machines will
5636 * not likely have syscall implemented either, so who cares?
5637 */
5638 while (++MARK <= SP) {
5639 if (SvNIOK(*MARK) || !i)
5640 a[i++] = SvIV(*MARK);
3280af22 5641 else if (*MARK == &PL_sv_undef)
748a9306 5642 a[i++] = 0;
301e8125 5643 else
2d8e6c8d 5644 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5645 if (i > 15)
5646 break;
5647 }
5648 switch (items) {
5649 default:
cea2e8a9 5650 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5651 case 0:
cea2e8a9 5652 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5653 case 1:
5654 retval = syscall(a[0]);
5655 break;
5656 case 2:
5657 retval = syscall(a[0],a[1]);
5658 break;
5659 case 3:
5660 retval = syscall(a[0],a[1],a[2]);
5661 break;
5662 case 4:
5663 retval = syscall(a[0],a[1],a[2],a[3]);
5664 break;
5665 case 5:
5666 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5667 break;
5668 case 6:
5669 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5670 break;
5671 case 7:
5672 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5673 break;
5674 case 8:
5675 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5676 break;
5677#ifdef atarist
5678 case 9:
5679 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5680 break;
5681 case 10:
5682 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5683 break;
5684 case 11:
5685 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5686 a[10]);
5687 break;
5688 case 12:
5689 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5690 a[10],a[11]);
5691 break;
5692 case 13:
5693 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5694 a[10],a[11],a[12]);
5695 break;
5696 case 14:
5697 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5698 a[10],a[11],a[12],a[13]);
5699 break;
5700#endif /* atarist */
5701 }
5702 SP = ORIGMARK;
5703 PUSHi(retval);
5704 RETURN;
5705#else
cea2e8a9 5706 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5707#endif
5708}
5709
ff68c719 5710#ifdef FCNTL_EMULATE_FLOCK
301e8125 5711
ff68c719 5712/* XXX Emulate flock() with fcntl().
5713 What's really needed is a good file locking module.
5714*/
5715
cea2e8a9
GS		 5716static int
5717fcntl_emulate_flock(int fd, int operation)
ff68c719 5718{
5719 struct flock flock;
301e8125 5720
ff68c719 5721 switch (operation & ~LOCK_NB) {
5722 case LOCK_SH:
5723 flock.l_type = F_RDLCK;
5724 break;
5725 case LOCK_EX:
5726 flock.l_type = F_WRLCK;
5727 break;
5728 case LOCK_UN:
5729 flock.l_type = F_UNLCK;
5730 break;
5731 default:
5732 errno = EINVAL;
5733 return -1;
5734 }
5735 flock.l_whence = SEEK_SET;
d9b3e12d 5736 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5737
ff68c719 5738 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5739}
5740
5741#endif /* FCNTL_EMULATE_FLOCK */
5742
5743#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5744
5745/* XXX Emulate flock() with lockf(). This is just to increase
5746 portability of scripts. The calls are not completely
5747 interchangeable. What's really needed is a good file
5748 locking module.
5749*/
5750
76c32331 5751/* The lockf() constants might have been defined in <unistd.h>.
5752 Unfortunately, <unistd.h> causes troubles on some mixed
5753 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5754
5755 Further, the lockf() constants aren't POSIX, so they might not be
5756 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5757 just stick in the SVID values and be done with it. Sigh.
5758*/
5759
5760# ifndef F_ULOCK
5761# define F_ULOCK 0 /* Unlock a previously locked region */
5762# endif
5763# ifndef F_LOCK
5764# define F_LOCK 1 /* Lock a region for exclusive use */
5765# endif
5766# ifndef F_TLOCK
5767# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5768# endif
5769# ifndef F_TEST
5770# define F_TEST 3 /* Test a region for other processes locks */
5771# endif
5772
cea2e8a9
GS		 5773static int
5774lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5775{
5776 int i;
84902520
TB		 5777 int save_errno;
5778 Off_t pos;
5779
5780 /* flock locks entire file so for lockf we need to do the same */
5781 save_errno = errno;
6ad3d225 5782 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5783 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5784 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5785 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5786 errno = save_errno;
5787
16d20bd9
AD		 5788 switch (operation) {
5789
5790 /* LOCK_SH - get a shared lock */
5791 case LOCK_SH:
5792 /* LOCK_EX - get an exclusive lock */
5793 case LOCK_EX:
5794 i = lockf (fd, F_LOCK, 0);
5795 break;
5796
5797 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5798 case LOCK_SH|LOCK_NB:
5799 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5800 case LOCK_EX|LOCK_NB:
5801 i = lockf (fd, F_TLOCK, 0);
5802 if (i == -1)
5803 if ((errno == EAGAIN) || (errno == EACCES))
5804 errno = EWOULDBLOCK;
5805 break;
5806
ff68c719 5807 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5808 case LOCK_UN:
ff68c719 5809 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5810 i = lockf (fd, F_ULOCK, 0);
5811 break;
5812
5813 /* Default - can't decipher operation */
5814 default:
5815 i = -1;
5816 errno = EINVAL;
5817 break;
5818 }
84902520
TB		 5819
5820 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5821 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5822
16d20bd9
AD		 5823 return (i);
5824}
ff68c719 5825
5826#endif /* LOCKF_EMULATE_FLOCK */
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