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[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2
JH		 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 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))) {
1823 buffer = SvPVutf8(bufsv, blen);
a0d0e21e 1824 }
7d59b7e4 1825 else {
4de5f5ca
JH		 1826 if (DO_UTF8(bufsv)) {
1827 /* Not modifying source SV, so making a temporary copy. */
1828 bufsv = sv_2mortal(newSVsv(bufsv));
1829 sv_utf8_downgrade(bufsv, FALSE);
1830 }
1831 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1832 }
1833
1834 if (PL_op->op_type == OP_SYSWRITE) {
1835 IV offset;
1836 if (DO_UTF8(bufsv)) {
1837 /* length and offset are in chars */
1838 blen = sv_len_utf8(bufsv);
1839 }
bbce6d69 1840 if (MARK < SP) {
a0d0e21e 1841 offset = SvIVx(*++MARK);
bbce6d69 1842 if (offset < 0) {
eb160463 1843 if (-offset > (IV)blen)
cea2e8a9 1844 DIE(aTHX_ "Offset outside string");
bbce6d69 1845 offset += blen;
eb160463 1846 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1847 DIE(aTHX_ "Offset outside string");
bbce6d69 1848 } else
a0d0e21e
LW		 1849 offset = 0;
1850 if (length > blen - offset)
1851 length = blen - offset;
7d59b7e4 1852 if (DO_UTF8(bufsv)) {
c8d31a35 1853 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1854 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1855 }
1856 else {
1857 buffer = buffer+offset;
1858 }
a7092146 1859#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1860 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1861 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1862 buffer, length, 0);
a7092146
GS		 1863 }
1864 else
1865#endif
1866 {
94e4c244 1867 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1868 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1869 buffer, length);
a7092146 1870 }
a0d0e21e
LW		 1871 }
1872#ifdef HAS_SOCKET
1873 else if (SP > MARK) {
1874 char *sockbuf;
1875 STRLEN mlen;
1876 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1877 /* length is really flags */
8c99d73e
GS		 1878 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1879 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1880 }
1881 else
7d59b7e4 1882 /* length is really flags */
8c99d73e 1883 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1884#else
1885 else
cea2e8a9 1886 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1887#endif
8c99d73e 1888 if (retval < 0)
a0d0e21e
LW		 1889 goto say_undef;
1890 SP = ORIGMARK;
f36eea10
JH		 1891 if (DO_UTF8(bufsv))
1892 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1893#if Size_t_size > IVSIZE
1894 PUSHn(retval);
1895#else
1896 PUSHi(retval);
1897#endif
a0d0e21e
LW		 1898 RETURN;
1899
1900 say_undef:
1901 SP = ORIGMARK;
1902 RETPUSHUNDEF;
1903}
1904
1905PP(pp_recv)
1906{
cea2e8a9 1907 return pp_sysread();
a0d0e21e
LW		 1908}
1909
1910PP(pp_eof)
1911{
39644a26 1912 dSP;
a0d0e21e 1913 GV *gv;
5b468f54 1914 IO *io;
4592e6ca 1915 MAGIC *mg;
a0d0e21e 1916
32da55ab 1917 if (MAXARG == 0) {
146174a9
CB		 1918 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1919 IO *io;
ed2c6b9b 1920 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1921 io = GvIO(gv);
1922 if (io && !IoIFP(io)) {
1923 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1924 IoLINES(io) = 0;
1925 IoFLAGS(io) &= ~IOf_START;
1926 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1927 sv_setpvn(GvSV(gv), "-", 1);
1928 SvSETMAGIC(GvSV(gv));
1929 }
1930 else if (!nextargv(gv))
1931 RETPUSHYES;
1932 }
1933 }
1934 else
1935 gv = PL_last_in_gv; /* eof */
1936 }
a0d0e21e 1937 else
146174a9 1938 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1939
5b468f54
AMS		 1940 if (gv && (io = GvIO(gv))
1941 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1942 {
4592e6ca 1943 PUSHMARK(SP);
5b468f54 1944 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1945 PUTBACK;
1946 ENTER;
864dbfa3 1947 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1948 LEAVE;
1949 SPAGAIN;
1950 RETURN;
1951 }
1952
54310121 1953 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1954 RETURN;
1955}
1956
1957PP(pp_tell)
1958{
39644a26 1959 dSP; dTARGET;
301e8125 1960 GV *gv;
5b468f54 1961 IO *io;
4592e6ca 1962 MAGIC *mg;
a0d0e21e 1963
32da55ab 1964 if (MAXARG == 0)
3280af22 1965 gv = PL_last_in_gv;
a0d0e21e 1966 else
3280af22 1967 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1968
5b468f54
AMS		 1969 if (gv && (io = GvIO(gv))
1970 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1971 {
4592e6ca 1972 PUSHMARK(SP);
5b468f54 1973 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1974 PUTBACK;
1975 ENTER;
864dbfa3 1976 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1977 LEAVE;
1978 SPAGAIN;
1979 RETURN;
1980 }
1981
146174a9
CB		 1982#if LSEEKSIZE > IVSIZE
1983 PUSHn( do_tell(gv) );
1984#else
a0d0e21e 1985 PUSHi( do_tell(gv) );
146174a9 1986#endif
a0d0e21e
LW		 1987 RETURN;
1988}
1989
1990PP(pp_seek)
1991{
cea2e8a9 1992 return pp_sysseek();
137443ea 1993}
1994
1995PP(pp_sysseek)
1996{
39644a26 1997 dSP;
a0d0e21e 1998 GV *gv;
5b468f54 1999 IO *io;
a0d0e21e 2000 int whence = POPi;
146174a9
CB		 2001#if LSEEKSIZE > IVSIZE
2002 Off_t offset = (Off_t)SvNVx(POPs);
2003#else
d9b3e12d 2004 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2005#endif
4592e6ca 2006 MAGIC *mg;
a0d0e21e 2007
3280af22 2008 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2009
5b468f54
AMS		 2010 if (gv && (io = GvIO(gv))
2011 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2012 {
4592e6ca 2013 PUSHMARK(SP);
5b468f54 2014 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2015#if LSEEKSIZE > IVSIZE
2016 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2017#else
b448e4fe 2018 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2019#endif
b448e4fe 2020 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2021 PUTBACK;
2022 ENTER;
864dbfa3 2023 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2024 LEAVE;
2025 SPAGAIN;
2026 RETURN;
2027 }
2028
533c011a 2029 if (PL_op->op_type == OP_SEEK)
8903cb82 2030 PUSHs(boolSV(do_seek(gv, offset, whence)));
2031 else {
b448e4fe
JH		 2032 Off_t sought = do_sysseek(gv, offset, whence);
2033 if (sought < 0)
146174a9
CB		 2034 PUSHs(&PL_sv_undef);
2035 else {
b448e4fe 2036 SV* sv = sought ?
146174a9 2037#if LSEEKSIZE > IVSIZE
b448e4fe 2038 newSVnv((NV)sought)
146174a9 2039#else
b448e4fe 2040 newSViv(sought)
146174a9
CB		 2041#endif
2042 : newSVpvn(zero_but_true, ZBTLEN);
2043 PUSHs(sv_2mortal(sv));
2044 }
8903cb82 2045 }
a0d0e21e
LW		 2046 RETURN;
2047}
2048
2049PP(pp_truncate)
2050{
39644a26 2051 dSP;
8c99d73e
GS		 2052 /* There seems to be no consensus on the length type of truncate()
2053 * and ftruncate(), both off_t and size_t have supporters. In
2054 * general one would think that when using large files, off_t is
2055 * at least as wide as size_t, so using an off_t should be okay. */
2056 /* XXX Configure probe for the length type of *truncate() needed XXX */
2057 Off_t len;
a0d0e21e 2058
25342a55 2059#if Off_t_size > IVSIZE
8c99d73e
GS		 2060 len = (Off_t)POPn;
2061#else
2062 len = (Off_t)POPi;
2063#endif
2064 /* Checking for length < 0 is problematic as the type might or
301e8125 2065 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2066 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2067 SETERRNO(0,0);
5d94fbed 2068#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2069 {
2070 STRLEN n_a;
2071 int result = 1;
2072 GV *tmpgv;
090bf15b
SR		 2073 IO *io;
2074
d05c1ba0
JH		 2075 if (PL_op->op_flags & OPf_SPECIAL) {
2076 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2077
090bf15b
SR		 2078 do_ftruncate_gv:
2079 if (!GvIO(tmpgv))
2080 result = 0;
d05c1ba0 2081 else {
090bf15b
SR		 2082 PerlIO *fp;
2083 io = GvIOp(tmpgv);
2084 do_ftruncate_io:
2085 TAINT_PROPER("truncate");
2086 if (!(fp = IoIFP(io))) {
2087 result = 0;
2088 }
2089 else {
2090 PerlIO_flush(fp);
cbdc8872 2091#ifdef HAS_TRUNCATE
090bf15b 2092 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2093#else
090bf15b 2094 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2095#endif
090bf15b
SR		 2096 result = 0;
2097 }
d05c1ba0 2098 }
cbdc8872 2099 }
d05c1ba0
JH		 2100 else {
2101 SV *sv = POPs;
2102 char *name;
72f496dc 2103
d05c1ba0
JH		 2104 if (SvTYPE(sv) == SVt_PVGV) {
2105 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2106 goto do_ftruncate_gv;
d05c1ba0
JH		 2107 }
2108 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2109 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2110 goto do_ftruncate_gv;
2111 }
2112 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2113 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2114 goto do_ftruncate_io;
d05c1ba0 2115 }
1e422769 2116
d05c1ba0
JH		 2117 name = SvPV(sv, n_a);
2118 TAINT_PROPER("truncate");
cbdc8872 2119#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2120 if (truncate(name, len) < 0)
2121 result = 0;
cbdc8872 2122#else
d05c1ba0
JH		 2123 {
2124 int tmpfd;
2125
2126 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2127 result = 0;
d05c1ba0
JH		 2128 else {
2129 if (my_chsize(tmpfd, len) < 0)
2130 result = 0;
2131 PerlLIO_close(tmpfd);
2132 }
cbdc8872 2133 }
a0d0e21e 2134#endif
d05c1ba0 2135 }
a0d0e21e 2136
d05c1ba0
JH		 2137 if (result)
2138 RETPUSHYES;
2139 if (!errno)
93189314 2140 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2141 RETPUSHUNDEF;
2142 }
a0d0e21e 2143#else
cea2e8a9 2144 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2145#endif
2146}
2147
2148PP(pp_fcntl)
2149{
cea2e8a9 2150 return pp_ioctl();
a0d0e21e
LW		 2151}
2152
2153PP(pp_ioctl)
2154{
39644a26 2155 dSP; dTARGET;
748a9306 2156 SV *argsv = POPs;
3bb7c1b4 2157 unsigned int func = POPu;
533c011a 2158 int optype = PL_op->op_type;
a0d0e21e 2159 char *s;
324aa91a 2160 IV retval;
a0d0e21e 2161 GV *gv = (GV*)POPs;
c289d2f7 2162 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2163
748a9306 2164 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2165 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2166 report_evil_fh(gv, io, PL_op->op_type);
93189314 2167 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2168 RETPUSHUNDEF;
2169 }
2170
748a9306 2171 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2172 STRLEN len;
324aa91a 2173 STRLEN need;
748a9306 2174 s = SvPV_force(argsv, len);
324aa91a
HF		 2175 need = IOCPARM_LEN(func);
2176 if (len < need) {
2177 s = Sv_Grow(argsv, need + 1);
2178 SvCUR_set(argsv, need);
a0d0e21e
LW		 2179 }
2180
748a9306 2181 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2182 }
2183 else {
748a9306 2184 retval = SvIV(argsv);
c529f79d 2185 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2186 }
2187
2188 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2189
2190 if (optype == OP_IOCTL)
2191#ifdef HAS_IOCTL
76e3520e 2192 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2193#else
cea2e8a9 2194 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2195#endif
2196 else
c214f4ad
WB		 2197#ifndef HAS_FCNTL
2198 DIE(aTHX_ "fcntl is not implemented");
2199#else
55497cff 2200#if defined(OS2) && defined(__EMX__)
760ac839 2201 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2202#else
760ac839 2203 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2204#endif
6652bd42 2205#endif
a0d0e21e 2206
6652bd42 2207#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2208 if (SvPOK(argsv)) {
2209 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2210 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2211 OP_NAME(PL_op));
748a9306
LW		 2212 s[SvCUR(argsv)] = 0; /* put our null back */
2213 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2214 }
2215
2216 if (retval == -1)
2217 RETPUSHUNDEF;
2218 if (retval != 0) {
2219 PUSHi(retval);
2220 }
2221 else {
8903cb82 2222 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2223 }
4808266b 2224#endif
c214f4ad 2225 RETURN;
a0d0e21e
LW		 2226}
2227
2228PP(pp_flock)
2229{
9cad6237 2230#ifdef FLOCK
39644a26 2231 dSP; dTARGET;
a0d0e21e
LW		 2232 I32 value;
2233 int argtype;
2234 GV *gv;
bc37a18f 2235 IO *io = NULL;
760ac839 2236 PerlIO *fp;
16d20bd9 2237
a0d0e21e 2238 argtype = POPi;
32da55ab 2239 if (MAXARG == 0)
3280af22 2240 gv = PL_last_in_gv;
a0d0e21e
LW		 2241 else
2242 gv = (GV*)POPs;
bc37a18f
RG		 2243 if (gv && (io = GvIO(gv)))
2244 fp = IoIFP(io);
2245 else {
a0d0e21e 2246 fp = Nullfp;
bc37a18f
RG		 2247 io = NULL;
2248 }
a0d0e21e 2249 if (fp) {
68dc0745 2250 (void)PerlIO_flush(fp);
76e3520e 2251 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2252 }
cb50131a 2253 else {
bc37a18f
RG		 2254 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2255 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2256 value = 0;
93189314 2257 SETERRNO(EBADF,RMS_IFI);
cb50131a 2258 }
a0d0e21e
LW		 2259 PUSHi(value);
2260 RETURN;
2261#else
cea2e8a9 2262 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2263#endif
2264}
2265
2266/* Sockets. */
2267
2268PP(pp_socket)
2269{
a0d0e21e 2270#ifdef HAS_SOCKET
9cad6237 2271 dSP;
a0d0e21e
LW		 2272 GV *gv;
2273 register IO *io;
2274 int protocol = POPi;
2275 int type = POPi;
2276 int domain = POPi;
2277 int fd;
2278
2279 gv = (GV*)POPs;
c289d2f7 2280 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2281
c289d2f7
JH		 2282 if (!gv || !io) {
2283 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2284 report_evil_fh(gv, io, PL_op->op_type);
2285 if (IoIFP(io))
2286 do_close(gv, FALSE);
93189314 2287 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2288 RETPUSHUNDEF;
2289 }
2290
57171420
BS		 2291 if (IoIFP(io))
2292 do_close(gv, FALSE);
2293
a0d0e21e 2294 TAINT_PROPER("socket");
6ad3d225 2295 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2296 if (fd < 0)
2297 RETPUSHUNDEF;
460c8493
IZ		 2298 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2299 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2300 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2301 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2302 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2303 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2304 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2305 RETPUSHUNDEF;
2306 }
8d2a6795
GS		 2307#if defined(HAS_FCNTL) && defined(F_SETFD)
2308 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2309#endif
a0d0e21e 2310
d5ff79b3
OF		 2311#ifdef EPOC
2312 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2313#endif
2314
a0d0e21e
LW		 2315 RETPUSHYES;
2316#else
cea2e8a9 2317 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2318#endif
2319}
2320
2321PP(pp_sockpair)
2322{
c95c94b1 2323#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2324 dSP;
a0d0e21e
LW		 2325 GV *gv1;
2326 GV *gv2;
2327 register IO *io1;
2328 register IO *io2;
2329 int protocol = POPi;
2330 int type = POPi;
2331 int domain = POPi;
2332 int fd[2];
2333
2334 gv2 = (GV*)POPs;
2335 gv1 = (GV*)POPs;
c289d2f7
JH		 2336 io1 = gv1 ? GvIOn(gv1) : NULL;
2337 io2 = gv2 ? GvIOn(gv2) : NULL;
2338 if (!gv1 || !gv2 || !io1 || !io2) {
2339 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2340 if (!gv1 || !io1)
2341 report_evil_fh(gv1, io1, PL_op->op_type);
2342 if (!gv2 || !io2)
2343 report_evil_fh(gv1, io2, PL_op->op_type);
2344 }
2345 if (IoIFP(io1))
2346 do_close(gv1, FALSE);
2347 if (IoIFP(io2))
2348 do_close(gv2, FALSE);
a0d0e21e 2349 RETPUSHUNDEF;
c289d2f7 2350 }
a0d0e21e 2351
dc0d0a5f
JH		 2352 if (IoIFP(io1))
2353 do_close(gv1, FALSE);
2354 if (IoIFP(io2))
2355 do_close(gv2, FALSE);
57171420 2356
a0d0e21e 2357 TAINT_PROPER("socketpair");
6ad3d225 2358 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2359 RETPUSHUNDEF;
460c8493
IZ		 2360 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2361 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2362 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2363 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2364 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2365 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2366 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2367 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2368 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2369 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2370 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2371 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2372 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2373 RETPUSHUNDEF;
2374 }
8d2a6795
GS		 2375#if defined(HAS_FCNTL) && defined(F_SETFD)
2376 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2377 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2378#endif
a0d0e21e
LW		 2379
2380 RETPUSHYES;
2381#else
cea2e8a9 2382 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2383#endif
2384}
2385
2386PP(pp_bind)
2387{
a0d0e21e 2388#ifdef HAS_SOCKET
9cad6237 2389 dSP;
eec2d3df 2390#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2391 extern void GETPRIVMODE();
2392 extern void GETUSERMODE();
eec2d3df 2393#endif
748a9306 2394 SV *addrsv = POPs;
a0d0e21e
LW		 2395 char *addr;
2396 GV *gv = (GV*)POPs;
2397 register IO *io = GvIOn(gv);
2398 STRLEN len;
eec2d3df
GS		 2399 int bind_ok = 0;
2400#ifdef MPE
2401 int mpeprivmode = 0;
2402#endif
a0d0e21e
LW		 2403
2404 if (!io || !IoIFP(io))
2405 goto nuts;
2406
748a9306 2407 addr = SvPV(addrsv, len);
a0d0e21e 2408 TAINT_PROPER("bind");
eec2d3df
GS		 2409#ifdef MPE /* Deal with MPE bind() peculiarities */
2410 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2411 /* The address *MUST* stupidly be zero. */
2412 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2413 /* PRIV mode is required to bind() to ports < 1024. */
2414 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2415 ((struct sockaddr_in *)addr)->sin_port > 0) {
2416 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2417 mpeprivmode = 1;
2418 }
2419 }
2420#endif /* MPE */
2421 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2422 (struct sockaddr *)addr, len) >= 0)
2423 bind_ok = 1;
2424
2425#ifdef MPE /* Switch back to USER mode */
2426 if (mpeprivmode)
2427 GETUSERMODE();
2428#endif /* MPE */
2429
2430 if (bind_ok)
a0d0e21e
LW		 2431 RETPUSHYES;
2432 else
2433 RETPUSHUNDEF;
2434
2435nuts:
599cee73 2436 if (ckWARN(WARN_CLOSED))
bc37a18f 2437 report_evil_fh(gv, io, PL_op->op_type);
93189314 2438 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2439 RETPUSHUNDEF;
2440#else
cea2e8a9 2441 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2442#endif
2443}
2444
2445PP(pp_connect)
2446{
a0d0e21e 2447#ifdef HAS_SOCKET
9cad6237 2448 dSP;
748a9306 2449 SV *addrsv = POPs;
a0d0e21e
LW		 2450 char *addr;
2451 GV *gv = (GV*)POPs;
2452 register IO *io = GvIOn(gv);
2453 STRLEN len;
2454
2455 if (!io || !IoIFP(io))
2456 goto nuts;
2457
748a9306 2458 addr = SvPV(addrsv, len);
a0d0e21e 2459 TAINT_PROPER("connect");
6ad3d225 2460 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2461 RETPUSHYES;
2462 else
2463 RETPUSHUNDEF;
2464
2465nuts:
599cee73 2466 if (ckWARN(WARN_CLOSED))
bc37a18f 2467 report_evil_fh(gv, io, PL_op->op_type);
93189314 2468 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2469 RETPUSHUNDEF;
2470#else
cea2e8a9 2471 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2472#endif
2473}
2474
2475PP(pp_listen)
2476{
a0d0e21e 2477#ifdef HAS_SOCKET
9cad6237 2478 dSP;
a0d0e21e
LW		 2479 int backlog = POPi;
2480 GV *gv = (GV*)POPs;
c289d2f7 2481 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2482
c289d2f7 2483 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2484 goto nuts;
2485
6ad3d225 2486 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2487 RETPUSHYES;
2488 else
2489 RETPUSHUNDEF;
2490
2491nuts:
599cee73 2492 if (ckWARN(WARN_CLOSED))
bc37a18f 2493 report_evil_fh(gv, io, PL_op->op_type);
93189314 2494 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2495 RETPUSHUNDEF;
2496#else
cea2e8a9 2497 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2498#endif
2499}
2500
2501PP(pp_accept)
2502{
a0d0e21e 2503#ifdef HAS_SOCKET
9cad6237 2504 dSP; dTARGET;
a0d0e21e
LW		 2505 GV *ngv;
2506 GV *ggv;
2507 register IO *nstio;
2508 register IO *gstio;
93d47a36
JH		 2509 char namebuf[MAXPATHLEN];
2510#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2511 Sock_size_t len = sizeof (struct sockaddr_in);
2512#else
2513 Sock_size_t len = sizeof namebuf;
2514#endif
a0d0e21e
LW		 2515 int fd;
2516
2517 ggv = (GV*)POPs;
2518 ngv = (GV*)POPs;
2519
2520 if (!ngv)
2521 goto badexit;
2522 if (!ggv)
2523 goto nuts;
2524
2525 gstio = GvIO(ggv);
2526 if (!gstio || !IoIFP(gstio))
2527 goto nuts;
2528
2529 nstio = GvIOn(ngv);
93d47a36 2530 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2531 if (fd < 0)
2532 goto badexit;
a70048fb
AB		 2533 if (IoIFP(nstio))
2534 do_close(ngv, FALSE);
460c8493
IZ		 2535 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2536 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2537 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2538 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2539 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2540 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2541 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2542 goto badexit;
2543 }
8d2a6795
GS		 2544#if defined(HAS_FCNTL) && defined(F_SETFD)
2545 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2546#endif
a0d0e21e 2547
ed79a026 2548#ifdef EPOC
93d47a36 2549 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2550 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2551#endif
381c1bae 2552#ifdef __SCO_VERSION__
93d47a36 2553 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2554#endif
ed79a026 2555
93d47a36 2556 PUSHp(namebuf, len);
a0d0e21e
LW		 2557 RETURN;
2558
2559nuts:
599cee73 2560 if (ckWARN(WARN_CLOSED))
bc37a18f 2561 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2562 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2563
2564badexit:
2565 RETPUSHUNDEF;
2566
2567#else
cea2e8a9 2568 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2569#endif
2570}
2571
2572PP(pp_shutdown)
2573{
a0d0e21e 2574#ifdef HAS_SOCKET
9cad6237 2575 dSP; dTARGET;
a0d0e21e
LW		 2576 int how = POPi;
2577 GV *gv = (GV*)POPs;
2578 register IO *io = GvIOn(gv);
2579
2580 if (!io || !IoIFP(io))
2581 goto nuts;
2582
6ad3d225 2583 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2584 RETURN;
2585
2586nuts:
599cee73 2587 if (ckWARN(WARN_CLOSED))
bc37a18f 2588 report_evil_fh(gv, io, PL_op->op_type);
93189314 2589 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2590 RETPUSHUNDEF;
2591#else
cea2e8a9 2592 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2593#endif
2594}
2595
2596PP(pp_gsockopt)
2597{
2598#ifdef HAS_SOCKET
cea2e8a9 2599 return pp_ssockopt();
a0d0e21e 2600#else
cea2e8a9 2601 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2602#endif
2603}
2604
2605PP(pp_ssockopt)
2606{
a0d0e21e 2607#ifdef HAS_SOCKET
9cad6237 2608 dSP;
533c011a 2609 int optype = PL_op->op_type;
a0d0e21e
LW		 2610 SV *sv;
2611 int fd;
2612 unsigned int optname;
2613 unsigned int lvl;
2614 GV *gv;
2615 register IO *io;
1e422769 2616 Sock_size_t len;
a0d0e21e
LW		 2617
2618 if (optype == OP_GSOCKOPT)
2619 sv = sv_2mortal(NEWSV(22, 257));
2620 else
2621 sv = POPs;
2622 optname = (unsigned int) POPi;
2623 lvl = (unsigned int) POPi;
2624
2625 gv = (GV*)POPs;
2626 io = GvIOn(gv);
2627 if (!io || !IoIFP(io))
2628 goto nuts;
2629
760ac839 2630 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2631 switch (optype) {
2632 case OP_GSOCKOPT:
748a9306 2633 SvGROW(sv, 257);
a0d0e21e 2634 (void)SvPOK_only(sv);
748a9306
LW		 2635 SvCUR_set(sv,256);
2636 *SvEND(sv) ='\0';
1e422769 2637 len = SvCUR(sv);
6ad3d225 2638 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2639 goto nuts2;
1e422769 2640 SvCUR_set(sv, len);
748a9306 2641 *SvEND(sv) ='\0';
a0d0e21e
LW		 2642 PUSHs(sv);
2643 break;
2644 case OP_SSOCKOPT: {
1e422769 2645 char *buf;
2646 int aint;
2647 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2648 STRLEN l;
2649 buf = SvPV(sv, l);
2650 len = l;
1e422769 2651 }
56ee1660 2652 else {
a0d0e21e
LW		 2653 aint = (int)SvIV(sv);
2654 buf = (char*)&aint;
2655 len = sizeof(int);
2656 }
6ad3d225 2657 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2658 goto nuts2;
3280af22 2659 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2660 }
2661 break;
2662 }
2663 RETURN;
2664
2665nuts:
599cee73 2666 if (ckWARN(WARN_CLOSED))
bc37a18f 2667 report_evil_fh(gv, io, optype);
93189314 2668 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2669nuts2:
2670 RETPUSHUNDEF;
2671
2672#else
cea2e8a9 2673 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2674#endif
2675}
2676
2677PP(pp_getsockname)
2678{
2679#ifdef HAS_SOCKET
cea2e8a9 2680 return pp_getpeername();
a0d0e21e 2681#else
cea2e8a9 2682 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2683#endif
2684}
2685
2686PP(pp_getpeername)
2687{
a0d0e21e 2688#ifdef HAS_SOCKET
9cad6237 2689 dSP;
533c011a 2690 int optype = PL_op->op_type;
a0d0e21e
LW		 2691 SV *sv;
2692 int fd;
2693 GV *gv = (GV*)POPs;
2694 register IO *io = GvIOn(gv);
1e422769 2695 Sock_size_t len;
a0d0e21e
LW		 2696
2697 if (!io || !IoIFP(io))
2698 goto nuts;
2699
2700 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2701 (void)SvPOK_only(sv);
1e422769 2702 len = 256;
2703 SvCUR_set(sv, len);
748a9306 2704 *SvEND(sv) ='\0';
760ac839 2705 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2706 switch (optype) {
2707 case OP_GETSOCKNAME:
6ad3d225 2708 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2709 goto nuts2;
2710 break;
2711 case OP_GETPEERNAME:
6ad3d225 2712 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2713 goto nuts2;
490ab354
JH		 2714#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2715 {
2716 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";
2717 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2718 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2719 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2720 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2721 goto nuts2;
490ab354
JH		 2722 }
2723 }
2724#endif
a0d0e21e
LW		 2725 break;
2726 }
13826f2c
CS		 2727#ifdef BOGUS_GETNAME_RETURN
2728 /* Interactive Unix, getpeername() and getsockname()
2729 does not return valid namelen */
1e422769 2730 if (len == BOGUS_GETNAME_RETURN)
2731 len = sizeof(struct sockaddr);
13826f2c 2732#endif
1e422769 2733 SvCUR_set(sv, len);
748a9306 2734 *SvEND(sv) ='\0';
a0d0e21e
LW		 2735 PUSHs(sv);
2736 RETURN;
2737
2738nuts:
599cee73 2739 if (ckWARN(WARN_CLOSED))
bc37a18f 2740 report_evil_fh(gv, io, optype);
93189314 2741 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2742nuts2:
2743 RETPUSHUNDEF;
2744
2745#else
cea2e8a9 2746 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2747#endif
2748}
2749
2750/* Stat calls. */
2751
2752PP(pp_lstat)
2753{
cea2e8a9 2754 return pp_stat();
a0d0e21e
LW		 2755}
2756
2757PP(pp_stat)
2758{
39644a26 2759 dSP;
2dd78f96 2760 GV *gv;
54310121 2761 I32 gimme;
a0d0e21e 2762 I32 max = 13;
2d8e6c8d 2763 STRLEN n_a;
a0d0e21e 2764
533c011a 2765 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2766 gv = cGVOP_gv;
8a4e5b40 2767 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2768 if (gv != PL_defgv) {
2769 if (ckWARN(WARN_IO))
9014280d 2770 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2771 "lstat() on filehandle %s", GvENAME(gv));
2772 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2773 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2774 }
2775
748a9306 2776 do_fstat:
2dd78f96 2777 if (gv != PL_defgv) {
3280af22 2778 PL_laststype = OP_STAT;
2dd78f96 2779 PL_statgv = gv;
3280af22 2780 sv_setpv(PL_statname, "");
2dd78f96
JH		 2781 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2782 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2783 }
9ddeeac9 2784 if (PL_laststatval < 0) {
2dd78f96
JH		 2785 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2786 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2787 max = 0;
9ddeeac9 2788 }
a0d0e21e
LW		 2789 }
2790 else {
748a9306
LW		 2791 SV* sv = POPs;
2792 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2793 gv = (GV*)sv;
748a9306
LW		 2794 goto do_fstat;
2795 }
2796 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2797 gv = (GV*)SvRV(sv);
5d3e98de 2798 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2799 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2800 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2801 goto do_fstat;
2802 }
2d8e6c8d 2803 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2804 PL_statgv = Nullgv;
a0d0e21e 2805#ifdef HAS_LSTAT
533c011a
NIS		 2806 PL_laststype = PL_op->op_type;
2807 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2808 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2809 else
2810#endif
2d8e6c8d 2811 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2812 if (PL_laststatval < 0) {
2d8e6c8d 2813 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2814 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2815 max = 0;
2816 }
2817 }
2818
54310121 2819 gimme = GIMME_V;
2820 if (gimme != G_ARRAY) {
2821 if (gimme != G_VOID)
2822 XPUSHs(boolSV(max));
2823 RETURN;
a0d0e21e
LW		 2824 }
2825 if (max) {
36477c24 2826 EXTEND(SP, max);
2827 EXTEND_MORTAL(max);
1ff81528
PL		 2828 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2829 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2830 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2831 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2832#if Uid_t_size > IVSIZE
2833 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2834#else
23dcd6c8 2835# if Uid_t_sign <= 0
1ff81528 2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2837# else
2838 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2839# endif
146174a9 2840#endif
301e8125 2841#if Gid_t_size > IVSIZE
146174a9
CB		 2842 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2843#else
23dcd6c8 2844# if Gid_t_sign <= 0
1ff81528 2845 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2846# else
2847 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2848# endif
146174a9 2849#endif
cbdc8872 2850#ifdef USE_STAT_RDEV
1ff81528 2851 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2852#else
79cb57f6 2853 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2854#endif
146174a9 2855#if Off_t_size > IVSIZE
4a9d6100 2856 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2857#else
1ff81528 2858 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2859#endif
cbdc8872 2860#ifdef BIG_TIME
172ae379
JH		 2861 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2862 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2863 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2864#else
1ff81528
PL		 2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2868#endif
a0d0e21e 2869#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2872#else
79cb57f6
GS		 2873 PUSHs(sv_2mortal(newSVpvn("", 0)));
2874 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2875#endif
2876 }
2877 RETURN;
2878}
2879
fbb0b3b3
RGS		 2880/* This macro is used by the stacked filetest operators :
2881 * if the previous filetest failed, short-circuit and pass its value.
2882 * Else, discard it from the stack and continue. --rgs
2883 */
2884#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2885 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2886 else { (void)POPs; PUTBACK; } \
2887 }
2888
a0d0e21e
LW		 2889PP(pp_ftrread)
2890{
9cad6237 2891 I32 result;
2a3ff820 2892 dSP;
fbb0b3b3 2893 STACKED_FTEST_CHECK;
5ff3f7a4 2894#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2895 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2896 STRLEN n_a;
43b06338 2897 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2898 if (result == 0)
2899 RETPUSHYES;
2900 if (result < 0)
2901 RETPUSHUNDEF;
2902 RETPUSHNO;
22865c03
GS		 2903 }
2904 else
cea2e8a9 2905 result = my_stat();
5ff3f7a4 2906#else
cea2e8a9 2907 result = my_stat();
5ff3f7a4 2908#endif
22865c03 2909 SPAGAIN;
a0d0e21e
LW		 2910 if (result < 0)
2911 RETPUSHUNDEF;
3280af22 2912 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2913 RETPUSHYES;
2914 RETPUSHNO;
2915}
2916
2917PP(pp_ftrwrite)
2918{
9cad6237 2919 I32 result;
2a3ff820 2920 dSP;
fbb0b3b3 2921 STACKED_FTEST_CHECK;
5ff3f7a4 2922#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2923 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2924 STRLEN n_a;
43b06338 2925 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2926 if (result == 0)
2927 RETPUSHYES;
2928 if (result < 0)
2929 RETPUSHUNDEF;
2930 RETPUSHNO;
22865c03
GS		 2931 }
2932 else
cea2e8a9 2933 result = my_stat();
5ff3f7a4 2934#else
cea2e8a9 2935 result = my_stat();
5ff3f7a4 2936#endif
22865c03 2937 SPAGAIN;
a0d0e21e
LW		 2938 if (result < 0)
2939 RETPUSHUNDEF;
3280af22 2940 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2941 RETPUSHYES;
2942 RETPUSHNO;
2943}
2944
2945PP(pp_ftrexec)
2946{
9cad6237 2947 I32 result;
2a3ff820 2948 dSP;
fbb0b3b3 2949 STACKED_FTEST_CHECK;
5ff3f7a4 2950#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2951 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2952 STRLEN n_a;
43b06338 2953 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2954 if (result == 0)
2955 RETPUSHYES;
2956 if (result < 0)
2957 RETPUSHUNDEF;
2958 RETPUSHNO;
22865c03
GS		 2959 }
2960 else
cea2e8a9 2961 result = my_stat();
5ff3f7a4 2962#else
cea2e8a9 2963 result = my_stat();
5ff3f7a4 2964#endif
22865c03 2965 SPAGAIN;
a0d0e21e
LW		 2966 if (result < 0)
2967 RETPUSHUNDEF;
3280af22 2968 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2969 RETPUSHYES;
2970 RETPUSHNO;
2971}
2972
2973PP(pp_fteread)
2974{
9cad6237 2975 I32 result;
2a3ff820 2976 dSP;
fbb0b3b3 2977 STACKED_FTEST_CHECK;
5ff3f7a4 2978#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 2979 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2980 STRLEN n_a;
43b06338 2981 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2982 if (result == 0)
2983 RETPUSHYES;
2984 if (result < 0)
2985 RETPUSHUNDEF;
2986 RETPUSHNO;
22865c03
GS		 2987 }
2988 else
cea2e8a9 2989 result = my_stat();
5ff3f7a4 2990#else
cea2e8a9 2991 result = my_stat();
5ff3f7a4 2992#endif
22865c03 2993 SPAGAIN;
a0d0e21e
LW		 2994 if (result < 0)
2995 RETPUSHUNDEF;
3280af22 2996 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2997 RETPUSHYES;
2998 RETPUSHNO;
2999}
3000
3001PP(pp_ftewrite)
3002{
9cad6237 3003 I32 result;
2a3ff820 3004 dSP;
fbb0b3b3 3005 STACKED_FTEST_CHECK;
5ff3f7a4 3006#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3007 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3008 STRLEN n_a;
43b06338 3009 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3010 if (result == 0)
3011 RETPUSHYES;
3012 if (result < 0)
3013 RETPUSHUNDEF;
3014 RETPUSHNO;
22865c03
GS		 3015 }
3016 else
cea2e8a9 3017 result = my_stat();
5ff3f7a4 3018#else
cea2e8a9 3019 result = my_stat();
5ff3f7a4 3020#endif
22865c03 3021 SPAGAIN;
a0d0e21e
LW		 3022 if (result < 0)
3023 RETPUSHUNDEF;
3280af22 3024 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3025 RETPUSHYES;
3026 RETPUSHNO;
3027}
3028
3029PP(pp_fteexec)
3030{
9cad6237 3031 I32 result;
2a3ff820 3032 dSP;
fbb0b3b3 3033 STACKED_FTEST_CHECK;
5ff3f7a4 3034#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3035 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3036 STRLEN n_a;
43b06338 3037 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3038 if (result == 0)
3039 RETPUSHYES;
3040 if (result < 0)
3041 RETPUSHUNDEF;
3042 RETPUSHNO;
22865c03
GS		 3043 }
3044 else
cea2e8a9 3045 result = my_stat();
5ff3f7a4 3046#else
cea2e8a9 3047 result = my_stat();
5ff3f7a4 3048#endif
22865c03 3049 SPAGAIN;
a0d0e21e
LW		 3050 if (result < 0)
3051 RETPUSHUNDEF;
3280af22 3052 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3053 RETPUSHYES;
3054 RETPUSHNO;
3055}
3056
3057PP(pp_ftis)
3058{
fbb0b3b3 3059 I32 result;
2a3ff820 3060 dSP;
fbb0b3b3
RGS		 3061 STACKED_FTEST_CHECK;
3062 result = my_stat();
3063 SPAGAIN;
a0d0e21e
LW		 3064 if (result < 0)
3065 RETPUSHUNDEF;
3066 RETPUSHYES;
3067}
3068
3069PP(pp_fteowned)
3070{
cea2e8a9 3071 return pp_ftrowned();
a0d0e21e
LW		 3072}
3073
3074PP(pp_ftrowned)
3075{
fbb0b3b3 3076 I32 result;
2a3ff820 3077 dSP;
fbb0b3b3
RGS		 3078 STACKED_FTEST_CHECK;
3079 result = my_stat();
3080 SPAGAIN;
a0d0e21e
LW		 3081 if (result < 0)
3082 RETPUSHUNDEF;
146174a9
CB		 3083 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3084 PL_euid : PL_uid) )
a0d0e21e
LW		 3085 RETPUSHYES;
3086 RETPUSHNO;
3087}
3088
3089PP(pp_ftzero)
3090{
fbb0b3b3 3091 I32 result;
2a3ff820 3092 dSP;
fbb0b3b3
RGS		 3093 STACKED_FTEST_CHECK;
3094 result = my_stat();
3095 SPAGAIN;
a0d0e21e
LW		 3096 if (result < 0)
3097 RETPUSHUNDEF;
146174a9 3098 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3099 RETPUSHYES;
3100 RETPUSHNO;
3101}
3102
3103PP(pp_ftsize)
3104{
fbb0b3b3 3105 I32 result;
2a3ff820 3106 dSP; dTARGET;
fbb0b3b3
RGS		 3107 STACKED_FTEST_CHECK;
3108 result = my_stat();
3109 SPAGAIN;
a0d0e21e
LW		 3110 if (result < 0)
3111 RETPUSHUNDEF;
146174a9
CB		 3112#if Off_t_size > IVSIZE
3113 PUSHn(PL_statcache.st_size);
3114#else
3280af22 3115 PUSHi(PL_statcache.st_size);
146174a9 3116#endif
a0d0e21e
LW		 3117 RETURN;
3118}
3119
3120PP(pp_ftmtime)
3121{
fbb0b3b3 3122 I32 result;
2a3ff820 3123 dSP; dTARGET;
fbb0b3b3
RGS		 3124 STACKED_FTEST_CHECK;
3125 result = my_stat();
3126 SPAGAIN;
a0d0e21e
LW		 3127 if (result < 0)
3128 RETPUSHUNDEF;
a80d47c2 3129 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3130 RETURN;
3131}
3132
3133PP(pp_ftatime)
3134{
fbb0b3b3 3135 I32 result;
2a3ff820 3136 dSP; dTARGET;
fbb0b3b3
RGS		 3137 STACKED_FTEST_CHECK;
3138 result = my_stat();
3139 SPAGAIN;
a0d0e21e
LW		 3140 if (result < 0)
3141 RETPUSHUNDEF;
a80d47c2 3142 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3143 RETURN;
3144}
3145
3146PP(pp_ftctime)
3147{
fbb0b3b3 3148 I32 result;
2a3ff820 3149 dSP; dTARGET;
fbb0b3b3
RGS		 3150 STACKED_FTEST_CHECK;
3151 result = my_stat();
3152 SPAGAIN;
a0d0e21e
LW		 3153 if (result < 0)
3154 RETPUSHUNDEF;
a80d47c2 3155 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3156 RETURN;
3157}
3158
3159PP(pp_ftsock)
3160{
fbb0b3b3 3161 I32 result;
2a3ff820 3162 dSP;
fbb0b3b3
RGS		 3163 STACKED_FTEST_CHECK;
3164 result = my_stat();
3165 SPAGAIN;
a0d0e21e
LW		 3166 if (result < 0)
3167 RETPUSHUNDEF;
3280af22 3168 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3169 RETPUSHYES;
3170 RETPUSHNO;
3171}
3172
3173PP(pp_ftchr)
3174{
fbb0b3b3 3175 I32 result;
2a3ff820 3176 dSP;
fbb0b3b3
RGS		 3177 STACKED_FTEST_CHECK;
3178 result = my_stat();
3179 SPAGAIN;
a0d0e21e
LW		 3180 if (result < 0)
3181 RETPUSHUNDEF;
3280af22 3182 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3183 RETPUSHYES;
3184 RETPUSHNO;
3185}
3186
3187PP(pp_ftblk)
3188{
fbb0b3b3 3189 I32 result;
2a3ff820 3190 dSP;
fbb0b3b3
RGS		 3191 STACKED_FTEST_CHECK;
3192 result = my_stat();
3193 SPAGAIN;
a0d0e21e
LW		 3194 if (result < 0)
3195 RETPUSHUNDEF;
3280af22 3196 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3197 RETPUSHYES;
3198 RETPUSHNO;
3199}
3200
3201PP(pp_ftfile)
3202{
fbb0b3b3 3203 I32 result;
2a3ff820 3204 dSP;
fbb0b3b3
RGS		 3205 STACKED_FTEST_CHECK;
3206 result = my_stat();
3207 SPAGAIN;
a0d0e21e
LW		 3208 if (result < 0)
3209 RETPUSHUNDEF;
3280af22 3210 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3211 RETPUSHYES;
3212 RETPUSHNO;
3213}
3214
3215PP(pp_ftdir)
3216{
fbb0b3b3 3217 I32 result;
2a3ff820 3218 dSP;
fbb0b3b3
RGS		 3219 STACKED_FTEST_CHECK;
3220 result = my_stat();
3221 SPAGAIN;
a0d0e21e
LW		 3222 if (result < 0)
3223 RETPUSHUNDEF;
3280af22 3224 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3225 RETPUSHYES;
3226 RETPUSHNO;
3227}
3228
3229PP(pp_ftpipe)
3230{
fbb0b3b3 3231 I32 result;
2a3ff820 3232 dSP;
fbb0b3b3
RGS		 3233 STACKED_FTEST_CHECK;
3234 result = my_stat();
3235 SPAGAIN;
a0d0e21e
LW		 3236 if (result < 0)
3237 RETPUSHUNDEF;
3280af22 3238 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3239 RETPUSHYES;
3240 RETPUSHNO;
3241}
3242
3243PP(pp_ftlink)
3244{
9cad6237 3245 I32 result = my_lstat();
2a3ff820 3246 dSP;
a0d0e21e
LW		 3247 if (result < 0)
3248 RETPUSHUNDEF;
3280af22 3249 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3250 RETPUSHYES;
3251 RETPUSHNO;
3252}
3253
3254PP(pp_ftsuid)
3255{
39644a26 3256 dSP;
a0d0e21e 3257#ifdef S_ISUID
fbb0b3b3
RGS		 3258 I32 result;
3259 STACKED_FTEST_CHECK;
3260 result = my_stat();
a0d0e21e
LW		 3261 SPAGAIN;
3262 if (result < 0)
3263 RETPUSHUNDEF;
3280af22 3264 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3265 RETPUSHYES;
3266#endif
3267 RETPUSHNO;
3268}
3269
3270PP(pp_ftsgid)
3271{
39644a26 3272 dSP;
a0d0e21e 3273#ifdef S_ISGID
fbb0b3b3
RGS		 3274 I32 result;
3275 STACKED_FTEST_CHECK;
3276 result = my_stat();
a0d0e21e
LW		 3277 SPAGAIN;
3278 if (result < 0)
3279 RETPUSHUNDEF;
3280af22 3280 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3281 RETPUSHYES;
3282#endif
3283 RETPUSHNO;
3284}
3285
3286PP(pp_ftsvtx)
3287{
39644a26 3288 dSP;
a0d0e21e 3289#ifdef S_ISVTX
fbb0b3b3
RGS		 3290 I32 result;
3291 STACKED_FTEST_CHECK;
3292 result = my_stat();
a0d0e21e
LW		 3293 SPAGAIN;
3294 if (result < 0)
3295 RETPUSHUNDEF;
3280af22 3296 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3297 RETPUSHYES;
3298#endif
3299 RETPUSHNO;
3300}
3301
3302PP(pp_fttty)
3303{
39644a26 3304 dSP;
a0d0e21e
LW		 3305 int fd;
3306 GV *gv;
fb73857a 3307 char *tmps = Nullch;
2d8e6c8d 3308 STRLEN n_a;
fb73857a 3309
fbb0b3b3
RGS		 3310 STACKED_FTEST_CHECK;
3311
533c011a 3312 if (PL_op->op_flags & OPf_REF)
146174a9 3313 gv = cGVOP_gv;
fb73857a 3314 else if (isGV(TOPs))
3315 gv = (GV*)POPs;
3316 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3317 gv = (GV*)SvRV(POPs);
a0d0e21e 3318 else
2d8e6c8d 3319 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3320
a0d0e21e 3321 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3322 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3323 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3324 fd = atoi(tmps);
3325 else
3326 RETPUSHUNDEF;
6ad3d225 3327 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3328 RETPUSHYES;
3329 RETPUSHNO;
3330}
3331
16d20bd9
AD		 3332#if defined(atarist) /* this will work with atariST. Configure will
3333 make guesses for other systems. */
3334# define FILE_base(f) ((f)->_base)
3335# define FILE_ptr(f) ((f)->_ptr)
3336# define FILE_cnt(f) ((f)->_cnt)
3337# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3338#endif
3339
3340PP(pp_fttext)
3341{
39644a26 3342 dSP;
a0d0e21e
LW		 3343 I32 i;
3344 I32 len;
3345 I32 odd = 0;
3346 STDCHAR tbuf[512];
3347 register STDCHAR *s;
3348 register IO *io;
5f05dabc 3349 register SV *sv;
3350 GV *gv;
2d8e6c8d 3351 STRLEN n_a;
146174a9 3352 PerlIO *fp;
a0d0e21e 3353
fbb0b3b3
RGS		 3354 STACKED_FTEST_CHECK;
3355
533c011a 3356 if (PL_op->op_flags & OPf_REF)
146174a9 3357 gv = cGVOP_gv;
5f05dabc 3358 else if (isGV(TOPs))
3359 gv = (GV*)POPs;
3360 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3361 gv = (GV*)SvRV(POPs);
3362 else
3363 gv = Nullgv;
3364
3365 if (gv) {
a0d0e21e 3366 EXTEND(SP, 1);
3280af22
NIS		 3367 if (gv == PL_defgv) {
3368 if (PL_statgv)
3369 io = GvIO(PL_statgv);
a0d0e21e 3370 else {
3280af22 3371 sv = PL_statname;
a0d0e21e
LW		 3372 goto really_filename;
3373 }
3374 }
3375 else {
3280af22
NIS		 3376 PL_statgv = gv;
3377 PL_laststatval = -1;
3378 sv_setpv(PL_statname, "");
3379 io = GvIO(PL_statgv);
a0d0e21e
LW		 3380 }
3381 if (io && IoIFP(io)) {
5f05dabc 3382 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3383 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3384 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3385 if (PL_laststatval < 0)
5f05dabc 3386 RETPUSHUNDEF;
9cbac4c7 3387 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3388 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3389 RETPUSHNO;
3390 else
3391 RETPUSHYES;
9cbac4c7 3392 }
a20bf0c3 3393 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3394 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3395 if (i != EOF)
760ac839 3396 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3397 }
a20bf0c3 3398 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3399 RETPUSHYES;
a20bf0c3
JH		 3400 len = PerlIO_get_bufsiz(IoIFP(io));
3401 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3402 /* sfio can have large buffers - limit to 512 */
3403 if (len > 512)
3404 len = 512;
a0d0e21e
LW		 3405 }
3406 else {
2dd78f96 3407 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3408 gv = cGVOP_gv;
2dd78f96 3409 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3410 }
93189314 3411 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3412 RETPUSHUNDEF;
3413 }
3414 }
3415 else {
3416 sv = POPs;
5f05dabc 3417 really_filename:
3280af22
NIS		 3418 PL_statgv = Nullgv;
3419 PL_laststatval = -1;
5c9aa243 3420 PL_laststype = OP_STAT;
2d8e6c8d 3421 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3422 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3423 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3424 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3425 RETPUSHUNDEF;
3426 }
146174a9
CB		 3427 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3428 if (PL_laststatval < 0) {
3429 (void)PerlIO_close(fp);
5f05dabc 3430 RETPUSHUNDEF;
146174a9 3431 }
60382766 3432 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3433 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3434 (void)PerlIO_close(fp);
a0d0e21e 3435 if (len <= 0) {
533c011a 3436 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3437 RETPUSHNO; /* special case NFS directories */
3438 RETPUSHYES; /* null file is anything */
3439 }
3440 s = tbuf;
3441 }
3442
3443 /* now scan s to look for textiness */
4633a7c4 3444 /* XXX ASCII dependent code */
a0d0e21e 3445
146174a9
CB		 3446#if defined(DOSISH) || defined(USEMYBINMODE)
3447 /* ignore trailing ^Z on short files */
3448 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3449 --len;
3450#endif
3451
a0d0e21e
LW		 3452 for (i = 0; i < len; i++, s++) {
3453 if (!*s) { /* null never allowed in text */
3454 odd += len;
3455 break;
3456 }
9d116dd7 3457#ifdef EBCDIC
301e8125 3458 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3459 odd++;
3460#else
146174a9
CB		 3461 else if (*s & 128) {
3462#ifdef USE_LOCALE
2de3dbcc 3463 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3464 continue;
3465#endif
3466 /* utf8 characters don't count as odd */
fd400ab9 3467 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3468 int ulen = UTF8SKIP(s);
3469 if (ulen < len - i) {
3470 int j;
3471 for (j = 1; j < ulen; j++) {
fd400ab9 3472 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3473 goto not_utf8;
3474 }
3475 --ulen; /* loop does extra increment */
3476 s += ulen;
3477 i += ulen;
3478 continue;
3479 }
3480 }
3481 not_utf8:
3482 odd++;
146174a9 3483 }
a0d0e21e
LW		 3484 else if (*s < 32 &&
3485 *s != '\n' && *s != '\r' && *s != '\b' &&
3486 *s != '\t' && *s != '\f' && *s != 27)
3487 odd++;
9d116dd7 3488#endif
a0d0e21e
LW		 3489 }
3490
533c011a 3491 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3492 RETPUSHNO;
3493 else
3494 RETPUSHYES;
3495}
3496
3497PP(pp_ftbinary)
3498{
cea2e8a9 3499 return pp_fttext();
a0d0e21e
LW		 3500}
3501
3502/* File calls. */
3503
3504PP(pp_chdir)
3505{
39644a26 3506 dSP; dTARGET;
a0d0e21e
LW		 3507 char *tmps;
3508 SV **svp;
2d8e6c8d 3509 STRLEN n_a;
a0d0e21e 3510
35ae6b54
MS		 3511 if( MAXARG == 1 )
3512 tmps = POPpx;
3513 else
3514 tmps = 0;
3515
3516 if( !tmps || !*tmps ) {
3517 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3518 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3519#ifdef VMS
35ae6b54 3520 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3521#endif
35ae6b54
MS		 3522 )
3523 {
3524 if( MAXARG == 1 )
9014280d 3525 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3526 tmps = SvPV(*svp, n_a);
3527 }
72f496dc 3528 else {
389ec635 3529 PUSHi(0);
b7ab37f8 3530 TAINT_PROPER("chdir");
389ec635
MS		 3531 RETURN;
3532 }
8ea155d1 3533 }
8ea155d1 3534
a0d0e21e 3535 TAINT_PROPER("chdir");
6ad3d225 3536 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3537#ifdef VMS
3538 /* Clear the DEFAULT element of ENV so we'll get the new value
3539 * in the future. */
6b88bc9c 3540 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3541#endif
a0d0e21e
LW		 3542 RETURN;
3543}
3544
3545PP(pp_chown)
3546{
a0d0e21e 3547#ifdef HAS_CHOWN
76ffd3b9
IZ		 3548 dSP; dMARK; dTARGET;
3549 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3550
a0d0e21e
LW		 3551 SP = MARK;
3552 PUSHi(value);
3553 RETURN;
3554#else
0322a713 3555 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3556#endif
3557}
3558
3559PP(pp_chroot)
3560{
a0d0e21e 3561#ifdef HAS_CHROOT
76ffd3b9 3562 dSP; dTARGET;
2d8e6c8d 3563 STRLEN n_a;
d05c1ba0 3564 char *tmps = POPpx;
a0d0e21e
LW		 3565 TAINT_PROPER("chroot");
3566 PUSHi( chroot(tmps) >= 0 );
3567 RETURN;
3568#else
cea2e8a9 3569 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3570#endif
3571}
3572
3573PP(pp_unlink)
3574{
39644a26 3575 dSP; dMARK; dTARGET;
a0d0e21e 3576 I32 value;
533c011a 3577 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3578 SP = MARK;
3579 PUSHi(value);
3580 RETURN;
3581}
3582
3583PP(pp_chmod)
3584{
39644a26 3585 dSP; dMARK; dTARGET;
a0d0e21e 3586 I32 value;
533c011a 3587 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3588 SP = MARK;
3589 PUSHi(value);
3590 RETURN;
3591}
3592
3593PP(pp_utime)
3594{
39644a26 3595 dSP; dMARK; dTARGET;
a0d0e21e 3596 I32 value;
533c011a 3597 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3598 SP = MARK;
3599 PUSHi(value);
3600 RETURN;
3601}
3602
3603PP(pp_rename)
3604{
39644a26 3605 dSP; dTARGET;
a0d0e21e 3606 int anum;
2d8e6c8d 3607 STRLEN n_a;
a0d0e21e 3608
2d8e6c8d
GS		 3609 char *tmps2 = POPpx;
3610 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3611 TAINT_PROPER("rename");
3612#ifdef HAS_RENAME
baed7233 3613 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3614#else
6b88bc9c 3615 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3616 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3617 anum = 1;
3618 else {
3654eb6c 3619 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3620 (void)UNLINK(tmps2);
3621 if (!(anum = link(tmps, tmps2)))
3622 anum = UNLINK(tmps);
3623 }
a0d0e21e
LW		 3624 }
3625#endif
3626 SETi( anum >= 0 );
3627 RETURN;
3628}
3629
3630PP(pp_link)
3631{
a0d0e21e 3632#ifdef HAS_LINK
370f6000 3633 dSP; dTARGET;
2d8e6c8d
GS		 3634 STRLEN n_a;
3635 char *tmps2 = POPpx;
3636 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3637 TAINT_PROPER("link");
146174a9 3638 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3639 RETURN;
a0d0e21e 3640#else
0322a713 3641 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3642#endif
a0d0e21e
LW		 3643}
3644
3645PP(pp_symlink)
3646{
a0d0e21e 3647#ifdef HAS_SYMLINK
9cad6237 3648 dSP; dTARGET;
2d8e6c8d
GS		 3649 STRLEN n_a;
3650 char *tmps2 = POPpx;
3651 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3652 TAINT_PROPER("symlink");
3653 SETi( symlink(tmps, tmps2) >= 0 );
3654 RETURN;
3655#else
cea2e8a9 3656 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3657#endif
3658}
3659
3660PP(pp_readlink)
3661{
76ffd3b9 3662 dSP;
a0d0e21e 3663#ifdef HAS_SYMLINK
76ffd3b9 3664 dTARGET;
a0d0e21e 3665 char *tmps;
46fc3d4c 3666 char buf[MAXPATHLEN];
a0d0e21e 3667 int len;
2d8e6c8d 3668 STRLEN n_a;
46fc3d4c 3669
fb73857a 3670#ifndef INCOMPLETE_TAINTS
3671 TAINT;
3672#endif
2d8e6c8d 3673 tmps = POPpx;
97dcea33 3674 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3675 EXTEND(SP, 1);
3676 if (len < 0)
3677 RETPUSHUNDEF;
3678 PUSHp(buf, len);
3679 RETURN;
3680#else
3681 EXTEND(SP, 1);
3682 RETSETUNDEF; /* just pretend it's a normal file */
3683#endif
3684}
3685
3686#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3687STATIC int
cea2e8a9 3688S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3689{
1e422769 3690 char *save_filename = filename;
3691 char *cmdline;
3692 char *s;
760ac839 3693 PerlIO *myfp;
1e422769 3694 int anum = 1;
a0d0e21e 3695
1e422769 3696 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3697 strcpy(cmdline, cmd);
3698 strcat(cmdline, " ");
3699 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3700 *s++ = '\\';
3701 *s++ = *filename++;
3702 }
3703 strcpy(s, " 2>&1");
6ad3d225 3704 myfp = PerlProc_popen(cmdline, "r");
1e422769 3705 Safefree(cmdline);
3706
a0d0e21e 3707 if (myfp) {
1e422769 3708 SV *tmpsv = sv_newmortal();
6b88bc9c 3709 /* Need to save/restore 'PL_rs' ?? */
760ac839 3710 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3711 (void)PerlProc_pclose(myfp);
a0d0e21e 3712 if (s != Nullch) {
1e422769 3713 int e;
3714 for (e = 1;
a0d0e21e 3715#ifdef HAS_SYS_ERRLIST
1e422769 3716 e <= sys_nerr
3717#endif
3718 ; e++)
3719 {
3720 /* you don't see this */
3721 char *errmsg =
3722#ifdef HAS_SYS_ERRLIST
3723 sys_errlist[e]
a0d0e21e 3724#else
1e422769 3725 strerror(e)
a0d0e21e 3726#endif
1e422769 3727 ;
3728 if (!errmsg)
3729 break;
3730 if (instr(s, errmsg)) {
3731 SETERRNO(e,0);
3732 return 0;
3733 }
a0d0e21e 3734 }
748a9306 3735 SETERRNO(0,0);
a0d0e21e
LW		 3736#ifndef EACCES
3737#define EACCES EPERM
3738#endif
1e422769 3739 if (instr(s, "cannot make"))
93189314 3740 SETERRNO(EEXIST,RMS_FEX);
1e422769 3741 else if (instr(s, "existing file"))
93189314 3742 SETERRNO(EEXIST,RMS_FEX);
1e422769 3743 else if (instr(s, "ile exists"))
93189314 3744 SETERRNO(EEXIST,RMS_FEX);
1e422769 3745 else if (instr(s, "non-exist"))
93189314 3746 SETERRNO(ENOENT,RMS_FNF);
1e422769 3747 else if (instr(s, "does not exist"))
93189314 3748 SETERRNO(ENOENT,RMS_FNF);
1e422769 3749 else if (instr(s, "not empty"))
93189314 3750 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3751 else if (instr(s, "cannot access"))
93189314 3752 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3753 else
93189314 3754 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3755 return 0;
3756 }
3757 else { /* some mkdirs return no failure indication */
6b88bc9c 3758 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3759 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3760 anum = !anum;
3761 if (anum)
748a9306 3762 SETERRNO(0,0);
a0d0e21e 3763 else
93189314 3764 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3765 }
3766 return anum;
3767 }
3768 else
3769 return 0;
3770}
3771#endif
3772
0c54f65b
RGS		 3773/* This macro removes trailing slashes from a directory name.
3774 * Different operating and file systems take differently to
3775 * trailing slashes. According to POSIX 1003.1 1996 Edition
3776 * any number of trailing slashes should be allowed.
3777 * Thusly we snip them away so that even non-conforming
3778 * systems are happy.
3779 * We should probably do this "filtering" for all
3780 * the functions that expect (potentially) directory names:
3781 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3782 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3783
3784#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3785 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3786 do { \
3787 (len)--; \
3788 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3789 (tmps) = savepvn((tmps), (len)); \
3790 (copy) = TRUE; \
3791 }
3792
a0d0e21e
LW		 3793PP(pp_mkdir)
3794{
39644a26 3795 dSP; dTARGET;
5a211162 3796 int mode;
a0d0e21e
LW		 3797#ifndef HAS_MKDIR
3798 int oldumask;
3799#endif
df25ddba 3800 STRLEN len;
5a211162 3801 char *tmps;
df25ddba 3802 bool copy = FALSE;
5a211162
GS		 3803
3804 if (MAXARG > 1)
3805 mode = POPi;
3806 else
3807 mode = 0777;
3808
0c54f65b 3809 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3810
3811 TAINT_PROPER("mkdir");
3812#ifdef HAS_MKDIR
6ad3d225 3813 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3814#else
3815 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3816 oldumask = PerlLIO_umask(0);
3817 PerlLIO_umask(oldumask);
3818 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3819#endif
df25ddba
JH		 3820 if (copy)
3821 Safefree(tmps);
a0d0e21e
LW		 3822 RETURN;
3823}
3824
3825PP(pp_rmdir)
3826{
39644a26 3827 dSP; dTARGET;
0c54f65b 3828 STRLEN len;
a0d0e21e 3829 char *tmps;
0c54f65b 3830 bool copy = FALSE;
a0d0e21e 3831
0c54f65b 3832 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3833 TAINT_PROPER("rmdir");
3834#ifdef HAS_RMDIR
0c54f65b 3835 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3836#else
0c54f65b 3837 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3838#endif
0c54f65b
RGS		 3839 if (copy)
3840 Safefree(tmps);
a0d0e21e
LW		 3841 RETURN;
3842}
3843
3844/* Directory calls. */
3845
3846PP(pp_open_dir)
3847{
a0d0e21e 3848#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3849 dSP;
2d8e6c8d
GS		 3850 STRLEN n_a;
3851 char *dirname = POPpx;
1e2c6ed7
JH		 3852 GV *gv = (GV*)POPs;
3853 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3854
3855 if (!io)
3856 goto nope;
3857
3858 if (IoDIRP(io))
6ad3d225
GS		 3859 PerlDir_close(IoDIRP(io));
3860 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3861 goto nope;
3862
3863 RETPUSHYES;
3864nope:
3865 if (!errno)
93189314 3866 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3867 RETPUSHUNDEF;
3868#else
cea2e8a9 3869 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3870#endif
3871}
3872
3873PP(pp_readdir)
3874{
34b7f128
AMS		 3875#if !defined(Direntry_t) || !defined(HAS_READDIR)
3876 DIE(aTHX_ PL_no_dir_func, "readdir");
3877#else
fd8cd3a3 3878#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3879 Direntry_t *readdir (DIR *);
a0d0e21e 3880#endif
34b7f128
AMS		 3881 dSP;
3882
3883 SV *sv;
3884 I32 gimme = GIMME;
3885 GV *gv = (GV *)POPs;
a0d0e21e 3886 register Direntry_t *dp;
a0d0e21e
LW		 3887 register IO *io = GvIOn(gv);
3888
3889 if (!io || !IoDIRP(io))
3890 goto nope;
3891
34b7f128
AMS		 3892 do {
3893 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3894 if (!dp)
3895 break;
a0d0e21e 3896#ifdef DIRNAMLEN
34b7f128 3897 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3898#else
34b7f128 3899 sv = newSVpv(dp->d_name, 0);
fb73857a 3900#endif
3901#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3902 if (!(IoFLAGS(io) & IOf_UNTAINT))
3903 SvTAINTED_on(sv);
a0d0e21e 3904#endif
34b7f128 3905 XPUSHs(sv_2mortal(sv));
a0d0e21e 3906 }
34b7f128
AMS		 3907 while (gimme == G_ARRAY);
3908
3909 if (!dp && gimme != G_ARRAY)
3910 goto nope;
3911
a0d0e21e
LW		 3912 RETURN;
3913
3914nope:
3915 if (!errno)
93189314 3916 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3917 if (GIMME == G_ARRAY)
3918 RETURN;
3919 else
3920 RETPUSHUNDEF;
a0d0e21e
LW		 3921#endif
3922}
3923
3924PP(pp_telldir)
3925{
a0d0e21e 3926#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3927 dSP; dTARGET;
968dcd91
JH		 3928 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3929 /* XXX netbsd still seemed to.
3930 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3931 --JHI 1999-Feb-02 */
3932# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3933 long telldir (DIR *);
dfe9444c 3934# endif
a0d0e21e
LW		 3935 GV *gv = (GV*)POPs;
3936 register IO *io = GvIOn(gv);
3937
3938 if (!io || !IoDIRP(io))
3939 goto nope;
3940
6ad3d225 3941 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3942 RETURN;
3943nope:
3944 if (!errno)
93189314 3945 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3946 RETPUSHUNDEF;
3947#else
cea2e8a9 3948 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3949#endif
3950}
3951
3952PP(pp_seekdir)
3953{
a0d0e21e 3954#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3955 dSP;
a0d0e21e
LW		 3956 long along = POPl;
3957 GV *gv = (GV*)POPs;
3958 register IO *io = GvIOn(gv);
3959
3960 if (!io || !IoDIRP(io))
3961 goto nope;
3962
6ad3d225 3963 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3964
3965 RETPUSHYES;
3966nope:
3967 if (!errno)
93189314 3968 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3969 RETPUSHUNDEF;
3970#else
cea2e8a9 3971 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3972#endif
3973}
3974
3975PP(pp_rewinddir)
3976{
a0d0e21e 3977#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3978 dSP;
a0d0e21e
LW		 3979 GV *gv = (GV*)POPs;
3980 register IO *io = GvIOn(gv);
3981
3982 if (!io || !IoDIRP(io))
3983 goto nope;
3984
6ad3d225 3985 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3986 RETPUSHYES;
3987nope:
3988 if (!errno)
93189314 3989 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3990 RETPUSHUNDEF;
3991#else
cea2e8a9 3992 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3993#endif
3994}
3995
3996PP(pp_closedir)
3997{
a0d0e21e 3998#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3999 dSP;
a0d0e21e
LW		 4000 GV *gv = (GV*)POPs;
4001 register IO *io = GvIOn(gv);
4002
4003 if (!io || !IoDIRP(io))
4004 goto nope;
4005
4006#ifdef VOID_CLOSEDIR
6ad3d225 4007 PerlDir_close(IoDIRP(io));
a0d0e21e 4008#else
6ad3d225 4009 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4010 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4011 goto nope;
748a9306 4012 }
a0d0e21e
LW		 4013#endif
4014 IoDIRP(io) = 0;
4015
4016 RETPUSHYES;
4017nope:
4018 if (!errno)
93189314 4019 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4020 RETPUSHUNDEF;
4021#else
cea2e8a9 4022 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4023#endif
4024}
4025
4026/* Process control. */
4027
4028PP(pp_fork)
4029{
44a8e56a 4030#ifdef HAS_FORK
39644a26 4031 dSP; dTARGET;
761237fe 4032 Pid_t childpid;
a0d0e21e
LW		 4033 GV *tmpgv;
4034
4035 EXTEND(SP, 1);
45bc9206 4036 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4037 childpid = PerlProc_fork();
a0d0e21e
LW		 4038 if (childpid < 0)
4039 RETSETUNDEF;
4040 if (!childpid) {
4041 /*SUPPRESS 560*/
306196c3
MS		 4042 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4043 SvREADONLY_off(GvSV(tmpgv));
146174a9 4044 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4045 SvREADONLY_on(GvSV(tmpgv));
4046 }
4d76a344
RGS		 4047#ifdef THREADS_HAVE_PIDS
4048 PL_ppid = (IV)getppid();
4049#endif
3280af22 4050 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4051 }
4052 PUSHi(childpid);
4053 RETURN;
4054#else
146174a9 4055# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4056 dSP; dTARGET;
146174a9
CB		 4057 Pid_t childpid;
4058
4059 EXTEND(SP, 1);
4060 PERL_FLUSHALL_FOR_CHILD;
4061 childpid = PerlProc_fork();
60fa28ff
GS		 4062 if (childpid == -1)
4063 RETSETUNDEF;
146174a9
CB		 4064 PUSHi(childpid);
4065 RETURN;
4066# else
0322a713 4067 DIE(aTHX_ PL_no_func, "fork");
146174a9 4068# endif
a0d0e21e
LW		 4069#endif
4070}
4071
4072PP(pp_wait)
4073{
301e8125 4074#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4075 dSP; dTARGET;
761237fe 4076 Pid_t childpid;
a0d0e21e 4077 int argflags;
a0d0e21e 4078
4ffa73a3
JH		 4079 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4080 childpid = wait4pid(-1, &argflags, 0);
4081 else {
4082 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4083 errno == EINTR) {
4084 PERL_ASYNC_CHECK();
4085 }
0a0ada86 4086 }
68a29c53
GS		 4087# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4088 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4089 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4090# else
f86702cc 4091 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4092# endif
44a8e56a 4093 XPUSHi(childpid);
a0d0e21e
LW		 4094 RETURN;
4095#else
0322a713 4096 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4097#endif
4098}
4099
4100PP(pp_waitpid)
4101{
301e8125 4102#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4103 dSP; dTARGET;
2ec0bfb3
SG		 4104 Pid_t pid;
4105 Pid_t result;
a0d0e21e
LW		 4106 int optype;
4107 int argflags;
a0d0e21e 4108
a0d0e21e 4109 optype = POPi;
2ec0bfb3 4110 pid = TOPi;
4ffa73a3 4111 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4112 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4113 else {
2ec0bfb3 4114 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4115 errno == EINTR) {
4116 PERL_ASYNC_CHECK();
4117 }
0a0ada86 4118 }
68a29c53
GS		 4119# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4120 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4121 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4122# else
2ec0bfb3 4123 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4124# endif
2ec0bfb3 4125 SETi(result);
a0d0e21e
LW		 4126 RETURN;
4127#else
0322a713 4128 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4129#endif
4130}
4131
4132PP(pp_system)
4133{
39644a26 4134 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4135 I32 value;
2d8e6c8d 4136 STRLEN n_a;
76ffd3b9 4137 int result;
e7766f89 4138 I32 did_pipes = 0;
a0d0e21e 4139
bbd7eb8a
RD		 4140 if (PL_tainting) {
4141 TAINT_ENV();
4142 while (++MARK <= SP) {
4143 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4144 if (PL_tainted)
bbd7eb8a
RD		 4145 break;
4146 }
4147 MARK = ORIGMARK;
5a445156 4148 TAINT_PROPER("system");
a0d0e21e 4149 }
45bc9206 4150 PERL_FLUSHALL_FOR_CHILD;
273b0206 4151#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4152 {
eb160463
GS		 4153 Pid_t childpid;
4154 int pp[2];
4155
4156 if (PerlProc_pipe(pp) >= 0)
4157 did_pipes = 1;
4158 while ((childpid = PerlProc_fork()) == -1) {
4159 if (errno != EAGAIN) {
4160 value = -1;
4161 SP = ORIGMARK;
4162 PUSHi(value);
4163 if (did_pipes) {
4164 PerlLIO_close(pp[0]);
4165 PerlLIO_close(pp[1]);
4166 }
4167 RETURN;
4168 }
4169 sleep(5);
4170 }
4171 if (childpid > 0) {
4172 Sigsave_t ihand,qhand; /* place to save signals during system() */
4173 int status;
4174
4175 if (did_pipes)
4176 PerlLIO_close(pp[1]);
64ca3a65 4177#ifndef PERL_MICRO
eb160463
GS		 4178 rsignal_save(SIGINT, SIG_IGN, &ihand);
4179 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4180#endif
eb160463
GS		 4181 do {
4182 result = wait4pid(childpid, &status, 0);
4183 } while (result == -1 && errno == EINTR);
64ca3a65 4184#ifndef PERL_MICRO
eb160463
GS		 4185 (void)rsignal_restore(SIGINT, &ihand);
4186 (void)rsignal_restore(SIGQUIT, &qhand);
4187#endif
4188 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4189 do_execfree(); /* free any memory child malloced on fork */
4190 SP = ORIGMARK;
4191 if (did_pipes) {
4192 int errkid;
4193 int n = 0, n1;
4194
4195 while (n < sizeof(int)) {
4196 n1 = PerlLIO_read(pp[0],
4197 (void*)(((char*)&errkid)+n),
4198 (sizeof(int)) - n);
4199 if (n1 <= 0)
4200 break;
4201 n += n1;
4202 }
4203 PerlLIO_close(pp[0]);
4204 if (n) { /* Error */
4205 if (n != sizeof(int))
4206 DIE(aTHX_ "panic: kid popen errno read");
4207 errno = errkid; /* Propagate errno from kid */
4208 STATUS_CURRENT = -1;
4209 }
4210 }
4211 PUSHi(STATUS_CURRENT);
4212 RETURN;
4213 }
4214 if (did_pipes) {
4215 PerlLIO_close(pp[0]);
d5a9bfb0 4216#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4217 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4218#endif
eb160463 4219 }
e0a1f643
JH		 4220 if (PL_op->op_flags & OPf_STACKED) {
4221 SV *really = *++MARK;
4222 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4223 }
4224 else if (SP - MARK != 1)
4225 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4226 else {
4227 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4228 }
4229 PerlProc__exit(-1);
d5a9bfb0 4230 }
c3293030 4231#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4232 PL_statusvalue = 0;
4233 result = 0;
911d147d 4234 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4235 SV *really = *++MARK;
622913ab 4236# if defined(WIN32) || defined(OS2)
54725af6
GS		 4237 value = (I32)do_aspawn(really, MARK, SP);
4238# else
c5be433b 4239 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4240# endif
a0d0e21e 4241 }
54725af6 4242 else if (SP - MARK != 1) {
622913ab 4243# if defined(WIN32) || defined(OS2)
54725af6
GS		 4244 value = (I32)do_aspawn(Nullsv, MARK, SP);
4245# else
c5be433b 4246 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4247# endif
4248 }
a0d0e21e 4249 else {
c5be433b 4250 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4251 }
922b1888
GS		 4252 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4253 result = 1;
f86702cc 4254 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4255 do_execfree();
4256 SP = ORIGMARK;
922b1888 4257 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4258#endif /* !FORK or VMS */
4259 RETURN;
4260}
4261
4262PP(pp_exec)
4263{
39644a26 4264 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4265 I32 value;
2d8e6c8d 4266 STRLEN n_a;
a0d0e21e 4267
bbd7eb8a
RD		 4268 if (PL_tainting) {
4269 TAINT_ENV();
4270 while (++MARK <= SP) {
4271 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4272 if (PL_tainted)
bbd7eb8a
RD		 4273 break;
4274 }
4275 MARK = ORIGMARK;
5a445156 4276 TAINT_PROPER("exec");
bbd7eb8a 4277 }
45bc9206 4278 PERL_FLUSHALL_FOR_CHILD;
533c011a 4279 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4280 SV *really = *++MARK;
4281 value = (I32)do_aexec(really, MARK, SP);
4282 }
4283 else if (SP - MARK != 1)
4284#ifdef VMS
4285 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4286#else
092bebab
JH		 4287# ifdef __OPEN_VM
4288 {
c5be433b 4289 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4290 value = 0;
4291 }
4292# else
a0d0e21e 4293 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4294# endif
a0d0e21e
LW		 4295#endif
4296 else {
a0d0e21e 4297#ifdef VMS
2d8e6c8d 4298 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4299#else
092bebab 4300# ifdef __OPEN_VM
c5be433b 4301 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4302 value = 0;
4303# else
2d8e6c8d 4304 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4305# endif
a0d0e21e
LW		 4306#endif
4307 }
146174a9 4308
a0d0e21e
LW		 4309 SP = ORIGMARK;
4310 PUSHi(value);
4311 RETURN;
4312}
4313
4314PP(pp_kill)
4315{
9cad6237 4316#ifdef HAS_KILL
39644a26 4317 dSP; dMARK; dTARGET;
a0d0e21e 4318 I32 value;
533c011a 4319 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4320 SP = MARK;
4321 PUSHi(value);
4322 RETURN;
4323#else
0322a713 4324 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4325#endif
4326}
4327
4328PP(pp_getppid)
4329{
4330#ifdef HAS_GETPPID
39644a26 4331 dSP; dTARGET;
4d76a344
RGS		 4332# ifdef THREADS_HAVE_PIDS
4333 XPUSHi( PL_ppid );
4334# else
a0d0e21e 4335 XPUSHi( getppid() );
4d76a344 4336# endif
a0d0e21e
LW		 4337 RETURN;
4338#else
cea2e8a9 4339 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4340#endif
4341}
4342
4343PP(pp_getpgrp)
4344{
4345#ifdef HAS_GETPGRP
39644a26 4346 dSP; dTARGET;
d8a83dd3 4347 Pid_t pid;
9853a804 4348 Pid_t pgrp;
a0d0e21e
LW		 4349
4350 if (MAXARG < 1)
4351 pid = 0;
4352 else
4353 pid = SvIVx(POPs);
c3293030 4354#ifdef BSD_GETPGRP
9853a804 4355 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4356#else
146174a9 4357 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4358 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4359 pgrp = getpgrp();
a0d0e21e 4360#endif
9853a804 4361 XPUSHi(pgrp);
a0d0e21e
LW		 4362 RETURN;
4363#else
cea2e8a9 4364 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4365#endif
4366}
4367
4368PP(pp_setpgrp)
4369{
4370#ifdef HAS_SETPGRP
39644a26 4371 dSP; dTARGET;
d8a83dd3
JH		 4372 Pid_t pgrp;
4373 Pid_t pid;
a0d0e21e
LW		 4374 if (MAXARG < 2) {
4375 pgrp = 0;
4376 pid = 0;
4377 }
4378 else {
4379 pgrp = POPi;
4380 pid = TOPi;
4381 }
4382
4383 TAINT_PROPER("setpgrp");
c3293030
IZ		 4384#ifdef BSD_SETPGRP
4385 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4386#else
146174a9
CB		 4387 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4388 || (pid != 0 && pid != PerlProc_getpid()))
4389 {
4390 DIE(aTHX_ "setpgrp can't take arguments");
4391 }
a0d0e21e
LW		 4392 SETi( setpgrp() >= 0 );
4393#endif /* USE_BSDPGRP */
4394 RETURN;
4395#else
cea2e8a9 4396 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4397#endif
4398}
4399
4400PP(pp_getpriority)
4401{
a0d0e21e 4402#ifdef HAS_GETPRIORITY
9cad6237 4403 dSP; dTARGET;
d05c1ba0
JH		 4404 int who = POPi;
4405 int which = TOPi;
a0d0e21e
LW		 4406 SETi( getpriority(which, who) );
4407 RETURN;
4408#else
cea2e8a9 4409 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4410#endif
4411}
4412
4413PP(pp_setpriority)
4414{
a0d0e21e 4415#ifdef HAS_SETPRIORITY
9cad6237 4416 dSP; dTARGET;
d05c1ba0
JH		 4417 int niceval = POPi;
4418 int who = POPi;
4419 int which = TOPi;
a0d0e21e
LW		 4420 TAINT_PROPER("setpriority");
4421 SETi( setpriority(which, who, niceval) >= 0 );
4422 RETURN;
4423#else
cea2e8a9 4424 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4425#endif
4426}
4427
4428/* Time calls. */
4429
4430PP(pp_time)
4431{
39644a26 4432 dSP; dTARGET;
cbdc8872 4433#ifdef BIG_TIME
4434 XPUSHn( time(Null(Time_t*)) );
4435#else
a0d0e21e 4436 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4437#endif
a0d0e21e
LW		 4438 RETURN;
4439}
4440
a0d0e21e
LW		 4441PP(pp_tms)
4442{
9cad6237 4443#ifdef HAS_TIMES
39644a26 4444 dSP;
a0d0e21e 4445 EXTEND(SP, 4);
a0d0e21e 4446#ifndef VMS
3280af22 4447 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4448#else
6b88bc9c 4449 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4450 /* struct tms, though same data */
4451 /* is returned. */
a0d0e21e
LW		 4452#endif
4453
5311654c 4454 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4455 if (GIMME == G_ARRAY) {
5311654c
JH		 4456 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4457 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4458 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4459 }
4460 RETURN;
9cad6237 4461#else
2f42fcb0
JH		 4462# ifdef PERL_MICRO
4463 dSP;
4464 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4465 EXTEND(SP, 4);
4466 if (GIMME == G_ARRAY) {
4467 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4468 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4469 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4470 }
4471 RETURN;
4472# else
9cad6237 4473 DIE(aTHX_ "times not implemented");
2f42fcb0 4474# endif
55497cff 4475#endif /* HAS_TIMES */
a0d0e21e
LW		 4476}
4477
4478PP(pp_localtime)
4479{
cea2e8a9 4480 return pp_gmtime();
a0d0e21e
LW		 4481}
4482
4483PP(pp_gmtime)
4484{
39644a26 4485 dSP;
a0d0e21e
LW		 4486 Time_t when;
4487 struct tm *tmbuf;
4488 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4489 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4490 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4491
4492 if (MAXARG < 1)
4493 (void)time(&when);
4494 else
cbdc8872 4495#ifdef BIG_TIME
4496 when = (Time_t)SvNVx(POPs);
4497#else
a0d0e21e 4498 when = (Time_t)SvIVx(POPs);
cbdc8872 4499#endif
a0d0e21e 4500
533c011a 4501 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4502 tmbuf = localtime(&when);
4503 else
4504 tmbuf = gmtime(&when);
4505
a0d0e21e 4506 if (GIMME != G_ARRAY) {
46fc3d4c 4507 SV *tsv;
9a5ff6d9
AB		 4508 EXTEND(SP, 1);
4509 EXTEND_MORTAL(1);
a0d0e21e
LW		 4510 if (!tmbuf)
4511 RETPUSHUNDEF;
be28567c 4512 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4513 dayname[tmbuf->tm_wday],
4514 monname[tmbuf->tm_mon],
be28567c
GS		 4515 tmbuf->tm_mday,
4516 tmbuf->tm_hour,
4517 tmbuf->tm_min,
4518 tmbuf->tm_sec,
4519 tmbuf->tm_year + 1900);
46fc3d4c 4520 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4521 }
4522 else if (tmbuf) {
9a5ff6d9
AB		 4523 EXTEND(SP, 9);
4524 EXTEND_MORTAL(9);
4525 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4526 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4527 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4528 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4529 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4530 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4531 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4532 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4533 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4534 }
4535 RETURN;
4536}
4537
4538PP(pp_alarm)
4539{
9cad6237 4540#ifdef HAS_ALARM
39644a26 4541 dSP; dTARGET;
a0d0e21e 4542 int anum;
a0d0e21e
LW		 4543 anum = POPi;
4544 anum = alarm((unsigned int)anum);
4545 EXTEND(SP, 1);
4546 if (anum < 0)
4547 RETPUSHUNDEF;
c6419e06 4548 PUSHi(anum);
a0d0e21e
LW		 4549 RETURN;
4550#else
0322a713 4551 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4552#endif
4553}
4554
4555PP(pp_sleep)
4556{
39644a26 4557 dSP; dTARGET;
a0d0e21e
LW		 4558 I32 duration;
4559 Time_t lasttime;
4560 Time_t when;
4561
4562 (void)time(&lasttime);
4563 if (MAXARG < 1)
76e3520e 4564 PerlProc_pause();
a0d0e21e
LW		 4565 else {
4566 duration = POPi;
76e3520e 4567 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4568 }
4569 (void)time(&when);
4570 XPUSHi(when - lasttime);
4571 RETURN;
4572}
4573
4574/* Shared memory. */
4575
4576PP(pp_shmget)
4577{
cea2e8a9 4578 return pp_semget();
a0d0e21e
LW		 4579}
4580
4581PP(pp_shmctl)
4582{
cea2e8a9 4583 return pp_semctl();
a0d0e21e
LW		 4584}
4585
4586PP(pp_shmread)
4587{
cea2e8a9 4588 return pp_shmwrite();
a0d0e21e
LW		 4589}
4590
4591PP(pp_shmwrite)
4592{
4593#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4594 dSP; dMARK; dTARGET;
533c011a 4595 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4596 SP = MARK;
4597 PUSHi(value);
4598 RETURN;
4599#else
cea2e8a9 4600 return pp_semget();
a0d0e21e
LW		 4601#endif
4602}
4603
4604/* Message passing. */
4605
4606PP(pp_msgget)
4607{
cea2e8a9 4608 return pp_semget();
a0d0e21e
LW		 4609}
4610
4611PP(pp_msgctl)
4612{
cea2e8a9 4613 return pp_semctl();
a0d0e21e
LW		 4614}
4615
4616PP(pp_msgsnd)
4617{
4618#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4619 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4620 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4621 SP = MARK;
4622 PUSHi(value);
4623 RETURN;
4624#else
cea2e8a9 4625 return pp_semget();
a0d0e21e
LW		 4626#endif
4627}
4628
4629PP(pp_msgrcv)
4630{
4631#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4632 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4633 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4634 SP = MARK;
4635 PUSHi(value);
4636 RETURN;
4637#else
cea2e8a9 4638 return pp_semget();
a0d0e21e
LW		 4639#endif
4640}
4641
4642/* Semaphores. */
4643
4644PP(pp_semget)
4645{
4646#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4647 dSP; dMARK; dTARGET;
533c011a 4648 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4649 SP = MARK;
4650 if (anum == -1)
4651 RETPUSHUNDEF;
4652 PUSHi(anum);
4653 RETURN;
4654#else
cea2e8a9 4655 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4656#endif
4657}
4658
4659PP(pp_semctl)
4660{
4661#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4662 dSP; dMARK; dTARGET;
533c011a 4663 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4664 SP = MARK;
4665 if (anum == -1)
4666 RETSETUNDEF;
4667 if (anum != 0) {
4668 PUSHi(anum);
4669 }
4670 else {
8903cb82 4671 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4672 }
4673 RETURN;
4674#else
cea2e8a9 4675 return pp_semget();
a0d0e21e
LW		 4676#endif
4677}
4678
4679PP(pp_semop)
4680{
4681#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4682 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4683 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4684 SP = MARK;
4685 PUSHi(value);
4686 RETURN;
4687#else
cea2e8a9 4688 return pp_semget();
a0d0e21e
LW		 4689#endif
4690}
4691
4692/* Get system info. */
4693
4694PP(pp_ghbyname)
4695{
693762b4 4696#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4697 return pp_ghostent();
a0d0e21e 4698#else
cea2e8a9 4699 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4700#endif
4701}
4702
4703PP(pp_ghbyaddr)
4704{
693762b4 4705#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4706 return pp_ghostent();
a0d0e21e 4707#else
cea2e8a9 4708 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4709#endif
4710}
4711
4712PP(pp_ghostent)
4713{
693762b4 4714#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4715 dSP;
533c011a 4716 I32 which = PL_op->op_type;
a0d0e21e
LW		 4717 register char **elem;
4718 register SV *sv;
dc45a647 4719#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4720 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4721 struct hostent *gethostbyname(Netdb_name_t);
4722 struct hostent *gethostent(void);
a0d0e21e
LW		 4723#endif
4724 struct hostent *hent;
4725 unsigned long len;
2d8e6c8d 4726 STRLEN n_a;
a0d0e21e
LW		 4727
4728 EXTEND(SP, 10);
edd309b7 4729 if (which == OP_GHBYNAME) {
dc45a647 4730#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4731 char* name = POPpbytex;
4732 hent = PerlSock_gethostbyname(name);
dc45a647 4733#else
cea2e8a9 4734 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4735#endif
edd309b7 4736 }
a0d0e21e 4737 else if (which == OP_GHBYADDR) {
dc45a647 4738#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4739 int addrtype = POPi;
748a9306 4740 SV *addrsv = POPs;
a0d0e21e 4741 STRLEN addrlen;
595ae481 4742 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4743
4599a1de 4744 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4745#else
cea2e8a9 4746 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4747#endif
a0d0e21e
LW		 4748 }
4749 else
4750#ifdef HAS_GETHOSTENT
6ad3d225 4751 hent = PerlSock_gethostent();
a0d0e21e 4752#else
cea2e8a9 4753 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4754#endif
4755
4756#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4757 if (!hent) {
4758#ifdef USE_REENTRANT_API
4759# ifdef USE_GETHOSTENT_ERRNO
4760 h_errno = PL_reentrant_buffer->_gethostent_errno;
4761# endif
4762#endif
4763 STATUS_NATIVE_SET(h_errno);
4764 }
a0d0e21e
LW		 4765#endif
4766
4767 if (GIMME != G_ARRAY) {
4768 PUSHs(sv = sv_newmortal());
4769 if (hent) {
4770 if (which == OP_GHBYNAME) {
fd0af264 4771 if (hent->h_addr)
4772 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4773 }
4774 else
4775 sv_setpv(sv, (char*)hent->h_name);
4776 }
4777 RETURN;
4778 }
4779
4780 if (hent) {
3280af22 4781 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4782 sv_setpv(sv, (char*)hent->h_name);
3280af22 4783 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4784 for (elem = hent->h_aliases; elem && *elem; elem++) {
4785 sv_catpv(sv, *elem);
4786 if (elem[1])
4787 sv_catpvn(sv, " ", 1);
4788 }
3280af22 4789 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4790 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4791 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4792 len = hent->h_length;
1e422769 4793 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4794#ifdef h_addr
4795 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4796 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4797 sv_setpvn(sv, *elem, len);
4798 }
4799#else
6b88bc9c 4800 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4801 if (hent->h_addr)
4802 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4803#endif /* h_addr */
4804 }
4805 RETURN;
4806#else
cea2e8a9 4807 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4808#endif
4809}
4810
4811PP(pp_gnbyname)
4812{
693762b4 4813#ifdef HAS_GETNETBYNAME
cea2e8a9 4814 return pp_gnetent();
a0d0e21e 4815#else
cea2e8a9 4816 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4817#endif
4818}
4819
4820PP(pp_gnbyaddr)
4821{
693762b4 4822#ifdef HAS_GETNETBYADDR
cea2e8a9 4823 return pp_gnetent();
a0d0e21e 4824#else
cea2e8a9 4825 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4826#endif
4827}
4828
4829PP(pp_gnetent)
4830{
693762b4 4831#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4832 dSP;
533c011a 4833 I32 which = PL_op->op_type;
a0d0e21e
LW		 4834 register char **elem;
4835 register SV *sv;
dc45a647 4836#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4837 struct netent *getnetbyaddr(Netdb_net_t, int);
4838 struct netent *getnetbyname(Netdb_name_t);
4839 struct netent *getnetent(void);
8ac85365 4840#endif
a0d0e21e 4841 struct netent *nent;
2d8e6c8d 4842 STRLEN n_a;
a0d0e21e 4843
edd309b7 4844 if (which == OP_GNBYNAME){
dc45a647 4845#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4846 char *name = POPpbytex;
4847 nent = PerlSock_getnetbyname(name);
dc45a647 4848#else
cea2e8a9 4849 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4850#endif
edd309b7 4851 }
a0d0e21e 4852 else if (which == OP_GNBYADDR) {
dc45a647 4853#ifdef HAS_GETNETBYADDR
a0d0e21e 4854 int addrtype = POPi;
3bb7c1b4 4855 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4856 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4857#else
cea2e8a9 4858 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4859#endif
a0d0e21e
LW		 4860 }
4861 else
dc45a647 4862#ifdef HAS_GETNETENT
76e3520e 4863 nent = PerlSock_getnetent();
dc45a647 4864#else
cea2e8a9 4865 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4866#endif
a0d0e21e 4867
10bc17b6
JH		 4868#ifdef HOST_NOT_FOUND
4869 if (!nent) {
4870#ifdef USE_REENTRANT_API
4871# ifdef USE_GETNETENT_ERRNO
4872 h_errno = PL_reentrant_buffer->_getnetent_errno;
4873# endif
4874#endif
4875 STATUS_NATIVE_SET(h_errno);
4876 }
4877#endif
4878
a0d0e21e
LW		 4879 EXTEND(SP, 4);
4880 if (GIMME != G_ARRAY) {
4881 PUSHs(sv = sv_newmortal());
4882 if (nent) {
4883 if (which == OP_GNBYNAME)
1e422769 4884 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4885 else
4886 sv_setpv(sv, nent->n_name);
4887 }
4888 RETURN;
4889 }
4890
4891 if (nent) {
3280af22 4892 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4893 sv_setpv(sv, nent->n_name);
3280af22 4894 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4895 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4896 sv_catpv(sv, *elem);
4897 if (elem[1])
4898 sv_catpvn(sv, " ", 1);
4899 }
3280af22 4900 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4901 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4902 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4903 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4904 }
4905
4906 RETURN;
4907#else
cea2e8a9 4908 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4909#endif
4910}
4911
4912PP(pp_gpbyname)
4913{
693762b4 4914#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4915 return pp_gprotoent();
a0d0e21e 4916#else
cea2e8a9 4917 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4918#endif
4919}
4920
4921PP(pp_gpbynumber)
4922{
693762b4 4923#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4924 return pp_gprotoent();
a0d0e21e 4925#else
cea2e8a9 4926 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4927#endif
4928}
4929
4930PP(pp_gprotoent)
4931{
693762b4 4932#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4933 dSP;
533c011a 4934 I32 which = PL_op->op_type;
a0d0e21e 4935 register char **elem;
301e8125 4936 register SV *sv;
dc45a647 4937#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4938 struct protoent *getprotobyname(Netdb_name_t);
4939 struct protoent *getprotobynumber(int);
4940 struct protoent *getprotoent(void);
8ac85365 4941#endif
a0d0e21e 4942 struct protoent *pent;
2d8e6c8d 4943 STRLEN n_a;
a0d0e21e 4944
edd309b7 4945 if (which == OP_GPBYNAME) {
e5c9fcd0 4946#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4947 char* name = POPpbytex;
4948 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4949#else
cea2e8a9 4950 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4951#endif
edd309b7
JH		 4952 }
4953 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4954#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4955 int number = POPi;
4956 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4957#else
edd309b7 4958 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4959#endif
edd309b7 4960 }
a0d0e21e 4961 else
e5c9fcd0 4962#ifdef HAS_GETPROTOENT
6ad3d225 4963 pent = PerlSock_getprotoent();
e5c9fcd0 4964#else
cea2e8a9 4965 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4966#endif
a0d0e21e
LW		 4967
4968 EXTEND(SP, 3);
4969 if (GIMME != G_ARRAY) {
4970 PUSHs(sv = sv_newmortal());
4971 if (pent) {
4972 if (which == OP_GPBYNAME)
1e422769 4973 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4974 else
4975 sv_setpv(sv, pent->p_name);
4976 }
4977 RETURN;
4978 }
4979
4980 if (pent) {
3280af22 4981 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4982 sv_setpv(sv, pent->p_name);
3280af22 4983 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4984 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4985 sv_catpv(sv, *elem);
4986 if (elem[1])
4987 sv_catpvn(sv, " ", 1);
4988 }
3280af22 4989 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4990 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4991 }
4992
4993 RETURN;
4994#else
cea2e8a9 4995 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4996#endif
4997}
4998
4999PP(pp_gsbyname)
5000{
9ec75305 5001#ifdef HAS_GETSERVBYNAME
cea2e8a9 5002 return pp_gservent();
a0d0e21e 5003#else
cea2e8a9 5004 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5005#endif
5006}
5007
5008PP(pp_gsbyport)
5009{
9ec75305 5010#ifdef HAS_GETSERVBYPORT
cea2e8a9 5011 return pp_gservent();
a0d0e21e 5012#else
cea2e8a9 5013 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5014#endif
5015}
5016
5017PP(pp_gservent)
5018{
693762b4 5019#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5020 dSP;
533c011a 5021 I32 which = PL_op->op_type;
a0d0e21e
LW		 5022 register char **elem;
5023 register SV *sv;
dc45a647 5024#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5025 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5026 struct servent *getservbyport(int, Netdb_name_t);
5027 struct servent *getservent(void);
8ac85365 5028#endif
a0d0e21e 5029 struct servent *sent;
2d8e6c8d 5030 STRLEN n_a;
a0d0e21e
LW		 5031
5032 if (which == OP_GSBYNAME) {
dc45a647 5033#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5034 char *proto = POPpbytex;
5035 char *name = POPpbytex;
a0d0e21e
LW		 5036
5037 if (proto && !*proto)
5038 proto = Nullch;
5039
6ad3d225 5040 sent = PerlSock_getservbyname(name, proto);
dc45a647 5041#else
cea2e8a9 5042 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5043#endif
a0d0e21e
LW		 5044 }
5045 else if (which == OP_GSBYPORT) {
dc45a647 5046#ifdef HAS_GETSERVBYPORT
42e0c139 5047 char *proto = POPpbytex;
eb160463 5048 unsigned short port = (unsigned short)POPu;
a0d0e21e 5049
2b872cca
SR		 5050 if (proto && !*proto)
5051 proto = Nullch;
5052
36477c24 5053#ifdef HAS_HTONS
6ad3d225 5054 port = PerlSock_htons(port);
36477c24 5055#endif
6ad3d225 5056 sent = PerlSock_getservbyport(port, proto);
dc45a647 5057#else
cea2e8a9 5058 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5059#endif
a0d0e21e
LW		 5060 }
5061 else
e5c9fcd0 5062#ifdef HAS_GETSERVENT
6ad3d225 5063 sent = PerlSock_getservent();
e5c9fcd0 5064#else
cea2e8a9 5065 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5066#endif
a0d0e21e
LW		 5067
5068 EXTEND(SP, 4);
5069 if (GIMME != G_ARRAY) {
5070 PUSHs(sv = sv_newmortal());
5071 if (sent) {
5072 if (which == OP_GSBYNAME) {
5073#ifdef HAS_NTOHS
6ad3d225 5074 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5075#else
1e422769 5076 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5077#endif
5078 }
5079 else
5080 sv_setpv(sv, sent->s_name);
5081 }
5082 RETURN;
5083 }
5084
5085 if (sent) {
3280af22 5086 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5087 sv_setpv(sv, sent->s_name);
3280af22 5088 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5089 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5090 sv_catpv(sv, *elem);
5091 if (elem[1])
5092 sv_catpvn(sv, " ", 1);
5093 }
3280af22 5094 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5095#ifdef HAS_NTOHS
76e3520e 5096 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5097#else
1e422769 5098 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5099#endif
3280af22 5100 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5101 sv_setpv(sv, sent->s_proto);
5102 }
5103
5104 RETURN;
5105#else
cea2e8a9 5106 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5107#endif
5108}
5109
5110PP(pp_shostent)
5111{
693762b4 5112#ifdef HAS_SETHOSTENT
9cad6237 5113 dSP;
76e3520e 5114 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5115 RETSETYES;
5116#else
cea2e8a9 5117 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5118#endif
5119}
5120
5121PP(pp_snetent)
5122{
693762b4 5123#ifdef HAS_SETNETENT
9cad6237 5124 dSP;
76e3520e 5125 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5126 RETSETYES;
5127#else
cea2e8a9 5128 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5129#endif
5130}
5131
5132PP(pp_sprotoent)
5133{
693762b4 5134#ifdef HAS_SETPROTOENT
9cad6237 5135 dSP;
76e3520e 5136 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5137 RETSETYES;
5138#else
cea2e8a9 5139 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5140#endif
5141}
5142
5143PP(pp_sservent)
5144{
693762b4 5145#ifdef HAS_SETSERVENT
9cad6237 5146 dSP;
76e3520e 5147 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5148 RETSETYES;
5149#else
cea2e8a9 5150 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5151#endif
5152}
5153
5154PP(pp_ehostent)
5155{
693762b4 5156#ifdef HAS_ENDHOSTENT
9cad6237 5157 dSP;
76e3520e 5158 PerlSock_endhostent();
924508f0 5159 EXTEND(SP,1);
a0d0e21e
LW		 5160 RETPUSHYES;
5161#else
cea2e8a9 5162 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5163#endif
5164}
5165
5166PP(pp_enetent)
5167{
693762b4 5168#ifdef HAS_ENDNETENT
9cad6237 5169 dSP;
76e3520e 5170 PerlSock_endnetent();
924508f0 5171 EXTEND(SP,1);
a0d0e21e
LW		 5172 RETPUSHYES;
5173#else
cea2e8a9 5174 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5175#endif
5176}
5177
5178PP(pp_eprotoent)
5179{
693762b4 5180#ifdef HAS_ENDPROTOENT
9cad6237 5181 dSP;
76e3520e 5182 PerlSock_endprotoent();
924508f0 5183 EXTEND(SP,1);
a0d0e21e
LW		 5184 RETPUSHYES;
5185#else
cea2e8a9 5186 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5187#endif
5188}
5189
5190PP(pp_eservent)
5191{
693762b4 5192#ifdef HAS_ENDSERVENT
9cad6237 5193 dSP;
76e3520e 5194 PerlSock_endservent();
924508f0 5195 EXTEND(SP,1);
a0d0e21e
LW		 5196 RETPUSHYES;
5197#else
cea2e8a9 5198 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5199#endif
5200}
5201
5202PP(pp_gpwnam)
5203{
5204#ifdef HAS_PASSWD
cea2e8a9 5205 return pp_gpwent();
a0d0e21e 5206#else
cea2e8a9 5207 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5208#endif
5209}
5210
5211PP(pp_gpwuid)
5212{
5213#ifdef HAS_PASSWD
cea2e8a9 5214 return pp_gpwent();
a0d0e21e 5215#else
cea2e8a9 5216 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5217#endif
5218}
5219
5220PP(pp_gpwent)
5221{
0994c4d0 5222#ifdef HAS_PASSWD
9cad6237 5223 dSP;
533c011a 5224 I32 which = PL_op->op_type;
a0d0e21e 5225 register SV *sv;
2d8e6c8d 5226 STRLEN n_a;
e3aefe8d 5227 struct passwd *pwent = NULL;
301e8125 5228 /*
bcf53261
JH		 5229 * We currently support only the SysV getsp* shadow password interface.
5230 * The interface is declared in <shadow.h> and often one needs to link
5231 * with -lsecurity or some such.
5232 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5233 * (and SCO?)
5234 *
5235 * AIX getpwnam() is clever enough to return the encrypted password
5236 * only if the caller (euid?) is root.
5237 *
e549f1c5 5238 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5239 * seem to contain more than one interface for accessing the shadow
5240 * password databases, possibly for compatibility reasons.
3813c136 5241 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5242 * are much more complicated, but also very similar to each other.
5243 *
5244 * <sys/types.h>
5245 * <sys/security.h>
5246 * <prot.h>
5247 * struct pr_passwd *getprpw*();
5248 * The password is in
3813c136
JH		 5249 * char getprpw*(...).ufld.fd_encrypt[]
5250 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5251 *
5252 * <sys/types.h>
5253 * <sys/security.h>
5254 * <prot.h>
5255 * struct es_passwd *getespw*();
5256 * The password is in
5257 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5258 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5259 *
e1920a95 5260 * <userpw.h> (AIX)
e549f1c5
JH		 5261 * struct userpw *getuserpw();
5262 * The password is in
5263 * char *(getuserpw(...)).spw_upw_passwd
5264 * (but the de facto standard getpwnam() should work okay)
5265 *
3813c136 5266 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5267 *
5268 * In HP-UX for getprpw*() the manual page claims that one should include
5269 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5270 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5271 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5272 *
5273 * Note that <sys/security.h> is already probed for, but currently
5274 * it is only included in special cases.
301e8125 5275 *
bcf53261
JH		 5276 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5277 * be preferred interface, even though also the getprpw*() interface
5278 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5279 * One also needs to call set_auth_parameters() in main() before
5280 * doing anything else, whether one is using getespw*() or getprpw*().
5281 *
5282 * Note that accessing the shadow databases can be magnitudes
5283 * slower than accessing the standard databases.
bcf53261
JH		 5284 *
5285 * --jhi
5286 */
a0d0e21e 5287
9e5f0c48
JH		 5288# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5289 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5290 * the pw_comment is left uninitialized. */
5291 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5292# endif
5293
e3aefe8d
JH		 5294 switch (which) {
5295 case OP_GPWNAM:
edd309b7
JH		 5296 {
5297 char* name = POPpbytex;
5298 pwent = getpwnam(name);
5299 }
5300 break;
e3aefe8d 5301 case OP_GPWUID:
edd309b7
JH		 5302 {
5303 Uid_t uid = POPi;
5304 pwent = getpwuid(uid);
5305 }
e3aefe8d
JH		 5306 break;
5307 case OP_GPWENT:
1883634f 5308# ifdef HAS_GETPWENT
e3aefe8d 5309 pwent = getpwent();
faea9016
IRC		 5310#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5311 if (pwent) pwent = getpwnam(pwent->pw_name);
5312#endif
1883634f 5313# else
a45d1c96 5314 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5315# endif
e3aefe8d
JH		 5316 break;
5317 }
8c0bfa08 5318
a0d0e21e
LW		 5319 EXTEND(SP, 10);
5320 if (GIMME != G_ARRAY) {
5321 PUSHs(sv = sv_newmortal());
5322 if (pwent) {
5323 if (which == OP_GPWNAM)
1883634f 5324# if Uid_t_sign <= 0
1e422769 5325 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5326# else
23dcd6c8 5327 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5328# endif
a0d0e21e
LW		 5329 else
5330 sv_setpv(sv, pwent->pw_name);
5331 }
5332 RETURN;
5333 }
5334
5335 if (pwent) {
3280af22 5336 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5337 sv_setpv(sv, pwent->pw_name);
6ee623d5 5338
3280af22 5339 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5340 SvPOK_off(sv);
5341 /* If we have getspnam(), we try to dig up the shadow
5342 * password. If we are underprivileged, the shadow
5343 * interface will set the errno to EACCES or similar,
5344 * and return a null pointer. If this happens, we will
5345 * use the dummy password (usually "*" or "x") from the
5346 * standard password database.
5347 *
5348 * In theory we could skip the shadow call completely
5349 * if euid != 0 but in practice we cannot know which
5350 * security measures are guarding the shadow databases
5351 * on a random platform.
5352 *
5353 * Resist the urge to use additional shadow interfaces.
5354 * Divert the urge to writing an extension instead.
5355 *
5356 * --jhi */
e549f1c5
JH		 5357 /* Some AIX setups falsely(?) detect some getspnam(), which
5358 * has a different API than the Solaris/IRIX one. */
5359# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5360 {
5361 struct spwd *spwent;
5362 int saverrno; /* Save and restore errno so that
5363 * underprivileged attempts seem
5364 * to have never made the unsccessful
5365 * attempt to retrieve the shadow password. */
5366
5367 saverrno = errno;
5368 spwent = getspnam(pwent->pw_name);
5369 errno = saverrno;
5370 if (spwent && spwent->sp_pwdp)
5371 sv_setpv(sv, spwent->sp_pwdp);
5372 }
f1066039 5373# endif
e020c87d 5374# ifdef PWPASSWD
3813c136
JH		 5375 if (!SvPOK(sv)) /* Use the standard password, then. */
5376 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5377# endif
3813c136 5378
1883634f 5379# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5380 /* passwd is tainted because user himself can diddle with it.
5381 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5382 SvTAINTED_on(sv);
1883634f 5383# endif
6ee623d5 5384
3280af22 5385 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5386# if Uid_t_sign <= 0
1e422769 5387 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5388# else
23dcd6c8 5389 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5390# endif
6ee623d5 5391
3280af22 5392 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5393# if Uid_t_sign <= 0
1e422769 5394 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5395# else
23dcd6c8 5396 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5397# endif
3813c136
JH		 5398 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5399 * because of the poor interface of the Perl getpw*(),
5400 * not because there's some standard/convention saying so.
5401 * A better interface would have been to return a hash,
5402 * but we are accursed by our history, alas. --jhi. */
3280af22 5403 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5404# ifdef PWCHANGE
1e422769 5405 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5406# else
1883634f
JH		 5407# ifdef PWQUOTA
5408 sv_setiv(sv, (IV)pwent->pw_quota);
5409# else
a1757be1 5410# ifdef PWAGE
a0d0e21e 5411 sv_setpv(sv, pwent->pw_age);
a1757be1 5412# endif
6ee623d5
GS		 5413# endif
5414# endif
6ee623d5 5415
3813c136
JH		 5416 /* pw_class and pw_comment are mutually exclusive--.
5417 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5418 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5419# ifdef PWCLASS
a0d0e21e 5420 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5421# else
5422# ifdef PWCOMMENT
a0d0e21e 5423 sv_setpv(sv, pwent->pw_comment);
1883634f 5424# endif
6ee623d5 5425# endif
6ee623d5 5426
3280af22 5427 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5428# ifdef PWGECOS
a0d0e21e 5429 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5430# endif
5431# ifndef INCOMPLETE_TAINTS
d2719217 5432 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5433 SvTAINTED_on(sv);
1883634f 5434# endif
6ee623d5 5435
3280af22 5436 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5437 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5438
3280af22 5439 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5440 sv_setpv(sv, pwent->pw_shell);
1883634f 5441# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5442 /* pw_shell is tainted because user himself can diddle with it. */
5443 SvTAINTED_on(sv);
1883634f 5444# endif
6ee623d5 5445
1883634f 5446# ifdef PWEXPIRE
6b88bc9c 5447 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5448 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5449# endif
a0d0e21e
LW		 5450 }
5451 RETURN;
5452#else
cea2e8a9 5453 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5454#endif
5455}
5456
5457PP(pp_spwent)
5458{
d493b042 5459#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5460 dSP;
a0d0e21e
LW		 5461 setpwent();
5462 RETPUSHYES;
5463#else
cea2e8a9 5464 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5465#endif
5466}
5467
5468PP(pp_epwent)
5469{
28e8609d 5470#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5471 dSP;
a0d0e21e
LW		 5472 endpwent();
5473 RETPUSHYES;
5474#else
cea2e8a9 5475 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5476#endif
5477}
5478
5479PP(pp_ggrnam)
5480{
5481#ifdef HAS_GROUP
cea2e8a9 5482 return pp_ggrent();
a0d0e21e 5483#else
cea2e8a9 5484 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5485#endif
5486}
5487
5488PP(pp_ggrgid)
5489{
5490#ifdef HAS_GROUP
cea2e8a9 5491 return pp_ggrent();
a0d0e21e 5492#else
cea2e8a9 5493 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5494#endif
5495}
5496
5497PP(pp_ggrent)
5498{
0994c4d0 5499#ifdef HAS_GROUP
9cad6237 5500 dSP;
533c011a 5501 I32 which = PL_op->op_type;
a0d0e21e
LW		 5502 register char **elem;
5503 register SV *sv;
5504 struct group *grent;
2d8e6c8d 5505 STRLEN n_a;
a0d0e21e 5506
edd309b7
JH		 5507 if (which == OP_GGRNAM) {
5508 char* name = POPpbytex;
5509 grent = (struct group *)getgrnam(name);
5510 }
5511 else if (which == OP_GGRGID) {
5512 Gid_t gid = POPi;
5513 grent = (struct group *)getgrgid(gid);
5514 }
a0d0e21e 5515 else
0994c4d0 5516#ifdef HAS_GETGRENT
a0d0e21e 5517 grent = (struct group *)getgrent();
0994c4d0
JH		 5518#else
5519 DIE(aTHX_ PL_no_func, "getgrent");
5520#endif
a0d0e21e
LW		 5521
5522 EXTEND(SP, 4);
5523 if (GIMME != G_ARRAY) {
5524 PUSHs(sv = sv_newmortal());
5525 if (grent) {
5526 if (which == OP_GGRNAM)
1e422769 5527 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5528 else
5529 sv_setpv(sv, grent->gr_name);
5530 }
5531 RETURN;
5532 }
5533
5534 if (grent) {
3280af22 5535 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5536 sv_setpv(sv, grent->gr_name);
28e8609d 5537
3280af22 5538 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5539#ifdef GRPASSWD
a0d0e21e 5540 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5541#endif
5542
3280af22 5543 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5544 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5545
5b56e7c5 5546#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5547 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5548 /* In UNICOS/mk (_CRAYMPP) the multithreading
5549 * versions (getgrnam_r, getgrgid_r)
5550 * seem to return an illegal pointer
5551 * as the group members list, gr_mem.
5552 * getgrent() doesn't even have a _r version
5553 * but the gr_mem is poisonous anyway.
5554 * So yes, you cannot get the list of group
5555 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5556 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5557 sv_catpv(sv, *elem);
5558 if (elem[1])
5559 sv_catpvn(sv, " ", 1);
5560 }
3d7e8424 5561#endif
a0d0e21e
LW		 5562 }
5563
5564 RETURN;
5565#else
cea2e8a9 5566 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5567#endif
5568}
5569
5570PP(pp_sgrent)
5571{
28e8609d 5572#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5573 dSP;
a0d0e21e
LW		 5574 setgrent();
5575 RETPUSHYES;
5576#else
cea2e8a9 5577 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5578#endif
5579}
5580
5581PP(pp_egrent)
5582{
28e8609d 5583#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5584 dSP;
a0d0e21e
LW		 5585 endgrent();
5586 RETPUSHYES;
5587#else
cea2e8a9 5588 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5589#endif
5590}
5591
5592PP(pp_getlogin)
5593{
a0d0e21e 5594#ifdef HAS_GETLOGIN
9cad6237 5595 dSP; dTARGET;
a0d0e21e
LW		 5596 char *tmps;
5597 EXTEND(SP, 1);
76e3520e 5598 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5599 RETPUSHUNDEF;
5600 PUSHp(tmps, strlen(tmps));
5601 RETURN;
5602#else
cea2e8a9 5603 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5604#endif
5605}
5606
5607/* Miscellaneous. */
5608
5609PP(pp_syscall)
5610{
d2719217 5611#ifdef HAS_SYSCALL
39644a26 5612 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5613 register I32 items = SP - MARK;
5614 unsigned long a[20];
5615 register I32 i = 0;
5616 I32 retval = -1;
2d8e6c8d 5617 STRLEN n_a;
a0d0e21e 5618
3280af22 5619 if (PL_tainting) {
a0d0e21e 5620 while (++MARK <= SP) {
bbce6d69 5621 if (SvTAINTED(*MARK)) {
5622 TAINT;
5623 break;
5624 }
a0d0e21e
LW		 5625 }
5626 MARK = ORIGMARK;
5627 TAINT_PROPER("syscall");
5628 }
5629
5630 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5631 * or where sizeof(long) != sizeof(char*). But such machines will
5632 * not likely have syscall implemented either, so who cares?
5633 */
5634 while (++MARK <= SP) {
5635 if (SvNIOK(*MARK) || !i)
5636 a[i++] = SvIV(*MARK);
3280af22 5637 else if (*MARK == &PL_sv_undef)
748a9306 5638 a[i++] = 0;
301e8125 5639 else
2d8e6c8d 5640 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5641 if (i > 15)
5642 break;
5643 }
5644 switch (items) {
5645 default:
cea2e8a9 5646 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5647 case 0:
cea2e8a9 5648 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5649 case 1:
5650 retval = syscall(a[0]);
5651 break;
5652 case 2:
5653 retval = syscall(a[0],a[1]);
5654 break;
5655 case 3:
5656 retval = syscall(a[0],a[1],a[2]);
5657 break;
5658 case 4:
5659 retval = syscall(a[0],a[1],a[2],a[3]);
5660 break;
5661 case 5:
5662 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5663 break;
5664 case 6:
5665 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5666 break;
5667 case 7:
5668 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5669 break;
5670 case 8:
5671 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5672 break;
5673#ifdef atarist
5674 case 9:
5675 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5676 break;
5677 case 10:
5678 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5679 break;
5680 case 11:
5681 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5682 a[10]);
5683 break;
5684 case 12:
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],a[11]);
5687 break;
5688 case 13:
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],a[12]);
5691 break;
5692 case 14:
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],a[13]);
5695 break;
5696#endif /* atarist */
5697 }
5698 SP = ORIGMARK;
5699 PUSHi(retval);
5700 RETURN;
5701#else
cea2e8a9 5702 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5703#endif
5704}
5705
ff68c719 5706#ifdef FCNTL_EMULATE_FLOCK
301e8125 5707
ff68c719 5708/* XXX Emulate flock() with fcntl().
5709 What's really needed is a good file locking module.
5710*/
5711
cea2e8a9
GS		 5712static int
5713fcntl_emulate_flock(int fd, int operation)
ff68c719 5714{
5715 struct flock flock;
301e8125 5716
ff68c719 5717 switch (operation & ~LOCK_NB) {
5718 case LOCK_SH:
5719 flock.l_type = F_RDLCK;
5720 break;
5721 case LOCK_EX:
5722 flock.l_type = F_WRLCK;
5723 break;
5724 case LOCK_UN:
5725 flock.l_type = F_UNLCK;
5726 break;
5727 default:
5728 errno = EINVAL;
5729 return -1;
5730 }
5731 flock.l_whence = SEEK_SET;
d9b3e12d 5732 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5733
ff68c719 5734 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5735}
5736
5737#endif /* FCNTL_EMULATE_FLOCK */
5738
5739#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5740
5741/* XXX Emulate flock() with lockf(). This is just to increase
5742 portability of scripts. The calls are not completely
5743 interchangeable. What's really needed is a good file
5744 locking module.
5745*/
5746
76c32331 5747/* The lockf() constants might have been defined in <unistd.h>.
5748 Unfortunately, <unistd.h> causes troubles on some mixed
5749 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5750
5751 Further, the lockf() constants aren't POSIX, so they might not be
5752 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5753 just stick in the SVID values and be done with it. Sigh.
5754*/
5755
5756# ifndef F_ULOCK
5757# define F_ULOCK 0 /* Unlock a previously locked region */
5758# endif
5759# ifndef F_LOCK
5760# define F_LOCK 1 /* Lock a region for exclusive use */
5761# endif
5762# ifndef F_TLOCK
5763# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5764# endif
5765# ifndef F_TEST
5766# define F_TEST 3 /* Test a region for other processes locks */
5767# endif
5768
cea2e8a9
GS		 5769static int
5770lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5771{
5772 int i;
84902520
TB		 5773 int save_errno;
5774 Off_t pos;
5775
5776 /* flock locks entire file so for lockf we need to do the same */
5777 save_errno = errno;
6ad3d225 5778 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5779 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5780 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5781 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5782 errno = save_errno;
5783
16d20bd9
AD		 5784 switch (operation) {
5785
5786 /* LOCK_SH - get a shared lock */
5787 case LOCK_SH:
5788 /* LOCK_EX - get an exclusive lock */
5789 case LOCK_EX:
5790 i = lockf (fd, F_LOCK, 0);
5791 break;
5792
5793 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5794 case LOCK_SH|LOCK_NB:
5795 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5796 case LOCK_EX|LOCK_NB:
5797 i = lockf (fd, F_TLOCK, 0);
5798 if (i == -1)
5799 if ((errno == EAGAIN) || (errno == EACCES))
5800 errno = EWOULDBLOCK;
5801 break;
5802
ff68c719 5803 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5804 case LOCK_UN:
ff68c719 5805 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5806 i = lockf (fd, F_ULOCK, 0);
5807 break;
5808
5809 /* Default - can't decipher operation */
5810 default:
5811 i = -1;
5812 errno = EINVAL;
5813 break;
5814 }
84902520
TB		 5815
5816 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5817 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5818
16d20bd9
AD		 5819 return (i);
5820}
ff68c719 5821
5822#endif /* LOCKF_EMULATE_FLOCK */
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