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Silence MinGW warning about "'noreturn' function does return"
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790
JH		 89#elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
72cc7e2a 121# define my_chsize PerlLIO_chsize
27da23d5
JH		 122#else
123# ifdef HAS_TRUNCATE
124# define my_chsize PerlLIO_chsize
125# else
126I32 my_chsize(int fd, Off_t length);
127# endif
cbdc8872 128#endif
129
ff68c719 130#ifdef HAS_FLOCK
131# define FLOCK flock
132#else /* no flock() */
133
36477c24 134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138# if defined(HAS_FCNTL) && !defined(I_FCNTL)
139# include <fcntl.h>
140# endif
141
9d9004a9 142# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 143# define FLOCK fcntl_emulate_flock
144# define FCNTL_EMULATE_FLOCK
145# else /* no flock() or fcntl(F_SETLK,...) */
146# ifdef HAS_LOCKF
147# define FLOCK lockf_emulate_flock
148# define LOCKF_EMULATE_FLOCK
149# endif /* lockf */
150# endif /* no flock() or fcntl(F_SETLK,...) */
151
152# ifdef FLOCK
20ce7b12 153 static int FLOCK (int, int);
ff68c719 154
155 /*
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
158 */
159# ifndef LOCK_SH
160# define LOCK_SH 1
161# endif
162# ifndef LOCK_EX
163# define LOCK_EX 2
164# endif
165# ifndef LOCK_NB
166# define LOCK_NB 4
167# endif
168# ifndef LOCK_UN
169# define LOCK_UN 8
170# endif
171# endif /* emulating flock() */
172
173#endif /* no flock() */
55497cff 174
85ab1d1d 175#define ZBTLEN 10
27da23d5 176static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 177
5ff3f7a4
GS		 178#if defined(I_SYS_ACCESS) && !defined(R_OK)
179# include <sys/access.h>
180#endif
181
c529f79d
CB		 182#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183# define FD_CLOEXEC 1 /* NeXT needs this */
184#endif
185
a4af207c
JH		 186#include "reentr.h"
187
9cffb111
OS		 188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
5ff3f7a4
GS		 200#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201#undef PERL_EFF_ACCESS_W_OK
202#undef PERL_EFF_ACCESS_X_OK
203
a4323dee
MB		 204/* AIX 5.2 and below use mktime for localtime, and defines the edge case
205 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
206 * available in the 32bit environment, which could warrant Configure
207 * checks in the future.
208 */
209#ifdef _AIX
210#define LOCALTIME_EDGECASE_BROKEN
211#endif
212
5ff3f7a4
GS		 213/* F_OK unused: if stat() cannot find it... */
214
215#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 216 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 217# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
218# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
219# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
220#endif
221
222#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 223# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 224# include <sys/security.h>
225# endif
c955f117
JH		 226# ifdef ACC_SELF
227 /* HP SecureWare */
228# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
229# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
230# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
231# else
232 /* SCO */
233# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
234# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
235# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
236# endif
5ff3f7a4
GS		 237#endif
238
239#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 240 /* AIX */
5ff3f7a4
GS		 241# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
242# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
243# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
244#endif
245
327c3667
GS		 246#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
247 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
248 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 249/* The Hard Way. */
327c3667 250STATIC int
7f4774ae 251S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 252{
5ff3f7a4
GS		 253 Uid_t ruid = getuid();
254 Uid_t euid = geteuid();
255 Gid_t rgid = getgid();
256 Gid_t egid = getegid();
257 int res;
258
146174a9 259 LOCK_CRED_MUTEX;
5ff3f7a4 260#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 261 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 262#else
263#ifdef HAS_SETREUID
264 if (setreuid(euid, ruid))
265#else
266#ifdef HAS_SETRESUID
267 if (setresuid(euid, ruid, (Uid_t)-1))
268#endif
269#endif
cea2e8a9 270 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 271#endif
272
273#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 274 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 275#else
276#ifdef HAS_SETREGID
277 if (setregid(egid, rgid))
278#else
279#ifdef HAS_SETRESGID
280 if (setresgid(egid, rgid, (Gid_t)-1))
281#endif
282#endif
cea2e8a9 283 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 284#endif
285
286 res = access(path, mode);
287
288#ifdef HAS_SETREUID
289 if (setreuid(ruid, euid))
290#else
291#ifdef HAS_SETRESUID
292 if (setresuid(ruid, euid, (Uid_t)-1))
293#endif
294#endif
cea2e8a9 295 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 296
297#ifdef HAS_SETREGID
298 if (setregid(rgid, egid))
299#else
300#ifdef HAS_SETRESGID
301 if (setresgid(rgid, egid, (Gid_t)-1))
302#endif
303#endif
cea2e8a9 304 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 305 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 306
307 return res;
308}
309# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
310# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
311# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
312#endif
313
314#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 315/* With it or without it: anyway you get a warning: either that
316 it is unused, or it is declared static and never defined.
317 */
327c3667 318STATIC int
7f4774ae 319S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 320{
5d7488b2
AL		 321 (void)path;
322 (void)mode;
cea2e8a9 323 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 324 /*NOTREACHED*/
325 return -1;
326}
327#endif
328
a0d0e21e
LW		 329PP(pp_backtick)
330{
39644a26 331 dSP; dTARGET;
760ac839 332 PerlIO *fp;
1b6737cc 333 const char * const tmps = POPpconstx;
f54cb97a 334 const I32 gimme = GIMME_V;
e1ec3a88 335 const char *mode = "r";
54310121 336
a0d0e21e 337 TAINT_PROPER("``");
16fe6d59
GS		 338 if (PL_op->op_private & OPpOPEN_IN_RAW)
339 mode = "rb";
340 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
341 mode = "rt";
5c144d81 342 fp = PerlProc_popen((char*)tmps, (char *)mode);
a0d0e21e 343 if (fp) {
e1ec3a88 344 const char *type = NULL;
ac27b0f5 345 if (PL_curcop->cop_io) {
e62f0680 346 type = SvPV_nolen_const(PL_curcop->cop_io);
ac27b0f5 347 }
ac27b0f5
NIS		 348 if (type && *type)
349 PerlIO_apply_layers(aTHX_ fp,mode,type);
350
54310121 351 if (gimme == G_VOID) {
96827780
MB		 352 char tmpbuf[256];
353 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 354 ;
355 }
356 else if (gimme == G_SCALAR) {
75af1a9c
DM		 357 ENTER;
358 SAVESPTR(PL_rs);
fa326138 359 PL_rs = &PL_sv_undef;
c69006e4 360 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e 361 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
a0d0e21e 362 ;
75af1a9c 363 LEAVE;
a0d0e21e 364 XPUSHs(TARG);
aa689395 365 SvTAINTED_on(TARG);
a0d0e21e
LW		 366 }
367 else {
a0d0e21e 368 for (;;) {
1b6737cc 369 SV * const sv = NEWSV(56, 79);
a0d0e21e
LW		 370 if (sv_gets(sv, fp, 0) == Nullch) {
371 SvREFCNT_dec(sv);
372 break;
373 }
374 XPUSHs(sv_2mortal(sv));
375 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 376 SvPV_shrink_to_cur(sv);
a0d0e21e 377 }
aa689395 378 SvTAINTED_on(sv);
a0d0e21e
LW		 379 }
380 }
6ad3d225 381 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 382 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 383 }
384 else {
f86702cc 385 STATUS_NATIVE_SET(-1);
54310121 386 if (gimme == G_SCALAR)
a0d0e21e
LW		 387 RETPUSHUNDEF;
388 }
389
390 RETURN;
391}
392
393PP(pp_glob)
394{
27da23d5 395 dVAR;
a0d0e21e 396 OP *result;
f5284f61
IZ		 397 tryAMAGICunTARGET(iter, -1);
398
71686f12
GS		 399 /* Note that we only ever get here if File::Glob fails to load
400 * without at the same time croaking, for some reason, or if
401 * perl was built with PERL_EXTERNAL_GLOB */
402
a0d0e21e 403 ENTER;
a0d0e21e 404
c90c0ff4 405#ifndef VMS
3280af22 406 if (PL_tainting) {
7bac28a0 407 /*
408 * The external globbing program may use things we can't control,
409 * so for security reasons we must assume the worst.
410 */
411 TAINT;
22c35a8c 412 taint_proper(PL_no_security, "glob");
7bac28a0 413 }
c90c0ff4 414#endif /* !VMS */
7bac28a0 415
3280af22
NIS		 416 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
417 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 418
3280af22 419 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 420 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 421#ifndef DOSISH
422#ifndef CSH
6b88bc9c 423 *SvPVX(PL_rs) = '\n';
a0d0e21e 424#endif /* !CSH */
55497cff 425#endif /* !DOSISH */
c07a80fd 426
a0d0e21e
LW		 427 result = do_readline();
428 LEAVE;
429 return result;
430}
431
a0d0e21e
LW		 432PP(pp_rcatline)
433{
146174a9 434 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 435 return do_readline();
436}
437
438PP(pp_warn)
439{
39644a26 440 dSP; dMARK;
06bf62c7 441 SV *tmpsv;
e1ec3a88 442 const char *tmps;
06bf62c7 443 STRLEN len;
a0d0e21e
LW		 444 if (SP - MARK != 1) {
445 dTARGET;
3280af22 446 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 447 tmpsv = TARG;
a0d0e21e
LW		 448 SP = MARK + 1;
449 }
450 else {
06bf62c7 451 tmpsv = TOPs;
a0d0e21e 452 }
e62f0680 453 tmps = SvPV_const(tmpsv, len);
7b102d90 454 if ((!tmps || !len) && PL_errgv) {
1b6737cc 455 SV * const error = ERRSV;
862a34c6 456 SvUPGRADE(error, SVt_PV);
4e6ea2c3
GS		 457 if (SvPOK(error) && SvCUR(error))
458 sv_catpv(error, "\t...caught");
06bf62c7 459 tmpsv = error;
e62f0680 460 tmps = SvPV_const(tmpsv, len);
a0d0e21e 461 }
06bf62c7
GS		 462 if (!tmps || !len)
463 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
464
cb50131a 465 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 466 RETSETYES;
467}
468
469PP(pp_die)
470{
39644a26 471 dSP; dMARK;
e1ec3a88 472 const char *tmps;
06bf62c7
GS		 473 SV *tmpsv;
474 STRLEN len;
475 bool multiarg = 0;
96e176bf
CL		 476#ifdef VMS
477 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
478#endif
a0d0e21e
LW		 479 if (SP - MARK != 1) {
480 dTARGET;
3280af22 481 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 482 tmpsv = TARG;
5c144d81 483 tmps = SvPV_const(tmpsv, len);
06bf62c7 484 multiarg = 1;
a0d0e21e
LW		 485 SP = MARK + 1;
486 }
487 else {
4e6ea2c3 488 tmpsv = TOPs;
5c144d81 489 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
a0d0e21e 490 }
06bf62c7 491 if (!tmps || !len) {
4e6ea2c3 492 SV *error = ERRSV;
862a34c6 493 SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 494 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
495 if (!multiarg)
4e6ea2c3 496 SvSetSV(error,tmpsv);
06bf62c7 497 else if (sv_isobject(error)) {
05423cc9
GS		 498 HV *stash = SvSTASH(SvRV(error));
499 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
500 if (gv) {
146174a9 501 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 502 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 503 EXTEND(SP, 3);
504 PUSHMARK(SP);
505 PUSHs(error);
506 PUSHs(file);
507 PUSHs(line);
508 PUTBACK;
864dbfa3
GS		 509 call_sv((SV*)GvCV(gv),
510 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 511 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 512 }
513 }
5df617be 514 DIE_NULL;
4e6ea2c3
GS		 515 }
516 else {
517 if (SvPOK(error) && SvCUR(error))
518 sv_catpv(error, "\t...propagated");
06bf62c7 519 tmpsv = error;
e62f0680 520 tmps = SvPV_const(tmpsv, len);
4e6ea2c3 521 }
a0d0e21e 522 }
06bf62c7
GS		 523 if (!tmps || !len)
524 tmpsv = sv_2mortal(newSVpvn("Died", 4));
525
cb50131a 526 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 527}
528
529/* I/O. */
530
531PP(pp_open)
532{
27da23d5 533 dVAR; dSP;
a567e93b
NIS		 534 dMARK; dORIGMARK;
535 dTARGET;
a0d0e21e
LW		 536 GV *gv;
537 SV *sv;
5b468f54 538 IO *io;
5c144d81 539 const char *tmps;
a0d0e21e 540 STRLEN len;
4592e6ca 541 MAGIC *mg;
a567e93b 542 bool ok;
a0d0e21e 543
a567e93b 544 gv = (GV *)*++MARK;
5f05dabc 545 if (!isGV(gv))
cea2e8a9 546 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 547 if ((io = GvIOp(gv)))
36477c24 548 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 549
5b468f54 550 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 551 /* Method's args are same as ours ... */
552 /* ... except handle is replaced by the object */
5b468f54 553 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 554 PUSHMARK(MARK);
4592e6ca
NIS		 555 PUTBACK;
556 ENTER;
864dbfa3 557 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 558 LEAVE;
559 SPAGAIN;
560 RETURN;
561 }
562
a567e93b
NIS		 563 if (MARK < SP) {
564 sv = *++MARK;
565 }
566 else {
35a08ec7 567 sv = GvSVn(gv);
a567e93b
NIS		 568 }
569
5c144d81
NC		 570 tmps = SvPV_const(sv, len);
571 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 572 SP = ORIGMARK;
573 if (ok)
3280af22
NIS		 574 PUSHi( (I32)PL_forkprocess );
575 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 576 PUSHi(0);
577 else
578 RETPUSHUNDEF;
579 RETURN;
580}
581
582PP(pp_close)
583{
27da23d5 584 dVAR; dSP;
a0d0e21e 585 GV *gv;
5b468f54 586 IO *io;
1d603a67 587 MAGIC *mg;
a0d0e21e
LW		 588
589 if (MAXARG == 0)
3280af22 590 gv = PL_defoutgv;
a0d0e21e
LW		 591 else
592 gv = (GV*)POPs;
1d603a67 593
5b468f54
AMS		 594 if (gv && (io = GvIO(gv))
595 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
596 {
1d603a67 597 PUSHMARK(SP);
5b468f54 598 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 599 PUTBACK;
600 ENTER;
864dbfa3 601 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 602 LEAVE;
603 SPAGAIN;
604 RETURN;
605 }
a0d0e21e 606 EXTEND(SP, 1);
54310121 607 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 608 RETURN;
609}
610
611PP(pp_pipe_op)
612{
a0d0e21e 613#ifdef HAS_PIPE
9cad6237 614 dSP;
a0d0e21e
LW		 615 GV *rgv;
616 GV *wgv;
617 register IO *rstio;
618 register IO *wstio;
619 int fd[2];
620
621 wgv = (GV*)POPs;
622 rgv = (GV*)POPs;
623
624 if (!rgv || !wgv)
625 goto badexit;
626
4633a7c4 627 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 628 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 629 rstio = GvIOn(rgv);
630 wstio = GvIOn(wgv);
631
632 if (IoIFP(rstio))
633 do_close(rgv, FALSE);
634 if (IoIFP(wstio))
635 do_close(wgv, FALSE);
636
6ad3d225 637 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 638 goto badexit;
639
460c8493
IZ		 640 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
641 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 642 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 643 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 644 IoTYPE(rstio) = IoTYPE_RDONLY;
645 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 646
647 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 648 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 649 else PerlLIO_close(fd[0]);
760ac839 650 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 651 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 652 goto badexit;
653 }
4771b018
GS		 654#if defined(HAS_FCNTL) && defined(F_SETFD)
655 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
656 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
657#endif
a0d0e21e
LW		 658 RETPUSHYES;
659
660badexit:
661 RETPUSHUNDEF;
662#else
cea2e8a9 663 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 664#endif
665}
666
667PP(pp_fileno)
668{
27da23d5 669 dVAR; dSP; dTARGET;
a0d0e21e
LW		 670 GV *gv;
671 IO *io;
760ac839 672 PerlIO *fp;
4592e6ca
NIS		 673 MAGIC *mg;
674
a0d0e21e
LW		 675 if (MAXARG < 1)
676 RETPUSHUNDEF;
677 gv = (GV*)POPs;
4592e6ca 678
5b468f54
AMS		 679 if (gv && (io = GvIO(gv))
680 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
681 {
4592e6ca 682 PUSHMARK(SP);
5b468f54 683 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 684 PUTBACK;
685 ENTER;
864dbfa3 686 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 687 LEAVE;
688 SPAGAIN;
689 RETURN;
690 }
691
c289d2f7
JH		 692 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
693 /* Can't do this because people seem to do things like
694 defined(fileno($foo)) to check whether $foo is a valid fh.
695 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
696 report_evil_fh(gv, io, PL_op->op_type);
697 */
a0d0e21e 698 RETPUSHUNDEF;
c289d2f7
JH		 699 }
700
760ac839 701 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 702 RETURN;
703}
704
705PP(pp_umask)
706{
27da23d5 707 dSP;
d7e492a4 708#ifdef HAS_UMASK
27da23d5 709 dTARGET;
761237fe 710 Mode_t anum;
a0d0e21e 711
a0d0e21e 712 if (MAXARG < 1) {
6ad3d225
GS		 713 anum = PerlLIO_umask(0);
714 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 715 }
716 else
6ad3d225 717 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 718 TAINT_PROPER("umask");
719 XPUSHi(anum);
720#else
a0288114 721 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 722 * Otherwise it's harmless and more useful to just return undef
723 * since 'group' and 'other' concepts probably don't exist here. */
724 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 725 DIE(aTHX_ "umask not implemented");
6b88bc9c 726 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 727#endif
728 RETURN;
729}
730
731PP(pp_binmode)
732{
27da23d5 733 dVAR; dSP;
a0d0e21e
LW		 734 GV *gv;
735 IO *io;
760ac839 736 PerlIO *fp;
4592e6ca 737 MAGIC *mg;
16fe6d59 738 SV *discp = Nullsv;
a0d0e21e
LW		 739
740 if (MAXARG < 1)
741 RETPUSHUNDEF;
60382766 742 if (MAXARG > 1) {
16fe6d59 743 discp = POPs;
60382766 744 }
a0d0e21e 745
301e8125 746 gv = (GV*)POPs;
4592e6ca 747
5b468f54
AMS		 748 if (gv && (io = GvIO(gv))
749 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
750 {
4592e6ca 751 PUSHMARK(SP);
5b468f54 752 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 753 if (discp)
754 XPUSHs(discp);
4592e6ca
NIS		 755 PUTBACK;
756 ENTER;
864dbfa3 757 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 758 LEAVE;
759 SPAGAIN;
760 RETURN;
761 }
a0d0e21e
LW		 762
763 EXTEND(SP, 1);
50f846a7 764 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 765 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
766 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 767 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 768 RETPUSHUNDEF;
769 }
a0d0e21e 770
40d98b49 771 PUTBACK;
60382766 772 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 773 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 774 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
775 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
776 mode_from_discipline(discp),
e62f0680 777 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 778 SPAGAIN;
779 RETPUSHUNDEF;
780 }
781 }
40d98b49 782 SPAGAIN;
a0d0e21e 783 RETPUSHYES;
40d98b49
JH		 784 }
785 else {
786 SPAGAIN;
a0d0e21e 787 RETPUSHUNDEF;
40d98b49 788 }
a0d0e21e
LW		 789}
790
791PP(pp_tie)
792{
27da23d5 793 dVAR; dSP; dMARK;
a0d0e21e
LW		 794 SV *varsv;
795 HV* stash;
796 GV *gv;
a0d0e21e 797 SV *sv;
1df70142 798 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 799 const char *methname;
14befaf4 800 int how = PERL_MAGIC_tied;
e336de0d 801 U32 items;
a0d0e21e 802
e336de0d 803 varsv = *++MARK;
6b05c17a
NIS		 804 switch(SvTYPE(varsv)) {
805 case SVt_PVHV:
806 methname = "TIEHASH";
bfcb3514 807 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 808 break;
809 case SVt_PVAV:
810 methname = "TIEARRAY";
811 break;
812 case SVt_PVGV:
7fb37951
AMS		 813#ifdef GV_UNIQUE_CHECK
814 if (GvUNIQUE((GV*)varsv)) {
815 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 816 }
817#endif
6b05c17a 818 methname = "TIEHANDLE";
14befaf4 819 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 820 /* For tied filehandles, we apply tiedscalar magic to the IO
821 slot of the GP rather than the GV itself. AMS 20010812 */
822 if (!GvIOp(varsv))
823 GvIOp(varsv) = newIO();
824 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 825 break;
826 default:
827 methname = "TIESCALAR";
14befaf4 828 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 829 break;
830 }
e336de0d
GS		 831 items = SP - MARK++;
832 if (sv_isobject(*MARK)) {
6b05c17a 833 ENTER;
e788e7d3 834 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 835 PUSHMARK(SP);
eb160463 836 EXTEND(SP,(I32)items);
e336de0d
GS		 837 while (items--)
838 PUSHs(*MARK++);
839 PUTBACK;
864dbfa3 840 call_method(methname, G_SCALAR);
301e8125 841 }
6b05c17a 842 else {
864dbfa3 843 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 844 * perhaps to get different error message ?
845 */
e336de0d 846 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 847 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 848 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
849 methname, *MARK);
6b05c17a
NIS		 850 }
851 ENTER;
e788e7d3 852 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 853 PUSHMARK(SP);
eb160463 854 EXTEND(SP,(I32)items);
e336de0d
GS		 855 while (items--)
856 PUSHs(*MARK++);
857 PUTBACK;
864dbfa3 858 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 859 }
a0d0e21e
LW		 860 SPAGAIN;
861
862 sv = TOPs;
d3acc0f7 863 POPSTACK;
a0d0e21e 864 if (sv_isobject(sv)) {
33c27489 865 sv_unmagic(varsv, how);
ae21d580 866 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 867 if (varsv == SvRV(sv) &&
d87ebaca
YST		 868 (SvTYPE(varsv) == SVt_PVAV ||
869 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 870 Perl_croak(aTHX_
871 "Self-ties of arrays and hashes are not supported");
d87ebaca 872 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 873 }
874 LEAVE;
3280af22 875 SP = PL_stack_base + markoff;
a0d0e21e
LW		 876 PUSHs(sv);
877 RETURN;
878}
879
880PP(pp_untie)
881{
27da23d5 882 dVAR; dSP;
5b468f54 883 MAGIC *mg;
33c27489 884 SV *sv = POPs;
1df70142 885 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 886 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 887
5b468f54
AMS		 888 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
889 RETPUSHYES;
890
65eba18f 891 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 892 SV * const obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 893 GV *gv;
894 CV *cv = NULL;
fa2b88e0
JS		 895 if (obj) {
896 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
897 isGV(gv) && (cv = GvCV(gv))) {
898 PUSHMARK(SP);
899 XPUSHs(SvTIED_obj((SV*)gv, mg));
900 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
901 PUTBACK;
902 ENTER;
903 call_sv((SV *)cv, G_VOID);
904 LEAVE;
905 SPAGAIN;
906 }
907 else if (ckWARN(WARN_UNTIE)) {
908 if (mg && SvREFCNT(obj) > 1)
9014280d 909 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 910 "untie attempted while %"UVuf" inner references still exist",
911 (UV)SvREFCNT(obj) - 1 ) ;
912 }
cbdc8872 913 }
914 }
38193a09 915 sv_unmagic(sv, how) ;
55497cff 916 RETPUSHYES;
a0d0e21e
LW		 917}
918
c07a80fd 919PP(pp_tied)
920{
39644a26 921 dSP;
1b6737cc 922 const MAGIC *mg;
33c27489 923 SV *sv = POPs;
1df70142 924 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 925 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 926
927 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
928 RETPUSHUNDEF;
c07a80fd 929
155aba94 930 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 931 SV *osv = SvTIED_obj(sv, mg);
932 if (osv == mg->mg_obj)
933 osv = sv_mortalcopy(osv);
934 PUSHs(osv);
935 RETURN;
c07a80fd 936 }
c07a80fd 937 RETPUSHUNDEF;
938}
939
a0d0e21e
LW		 940PP(pp_dbmopen)
941{
27da23d5 942 dVAR; dSP;
a0d0e21e
LW		 943 dPOPPOPssrl;
944 HV* stash;
945 GV *gv;
a0d0e21e
LW		 946 SV *sv;
947
1b6737cc 948 HV * const hv = (HV*)POPs;
a0d0e21e 949
3280af22 950 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 951 sv_setpv(sv, "AnyDBM_File");
952 stash = gv_stashsv(sv, FALSE);
8ebc5c01 953 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 954 PUTBACK;
864dbfa3 955 require_pv("AnyDBM_File.pm");
a0d0e21e 956 SPAGAIN;
8ebc5c01 957 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 958 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 959 }
960
57d3b86d 961 ENTER;
924508f0 962 PUSHMARK(SP);
6b05c17a 963
924508f0 964 EXTEND(SP, 5);
a0d0e21e
LW		 965 PUSHs(sv);
966 PUSHs(left);
967 if (SvIV(right))
b448e4fe 968 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 969 else
b448e4fe 970 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 971 PUSHs(right);
57d3b86d 972 PUTBACK;
864dbfa3 973 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 974 SPAGAIN;
975
976 if (!sv_isobject(TOPs)) {
924508f0
GS		 977 SP--;
978 PUSHMARK(SP);
a0d0e21e
LW		 979 PUSHs(sv);
980 PUSHs(left);
b448e4fe 981 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 982 PUSHs(right);
a0d0e21e 983 PUTBACK;
864dbfa3 984 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 985 SPAGAIN;
986 }
987
6b05c17a 988 if (sv_isobject(TOPs)) {
14befaf4
DM		 989 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
990 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 991 }
a0d0e21e
LW		 992 LEAVE;
993 RETURN;
994}
995
996PP(pp_dbmclose)
997{
cea2e8a9 998 return pp_untie();
a0d0e21e
LW		 999}
1000
1001PP(pp_sselect)
1002{
a0d0e21e 1003#ifdef HAS_SELECT
9cad6237 1004 dSP; dTARGET;
a0d0e21e
LW		 1005 register I32 i;
1006 register I32 j;
1007 register char *s;
1008 register SV *sv;
65202027 1009 NV value;
a0d0e21e
LW		 1010 I32 maxlen = 0;
1011 I32 nfound;
1012 struct timeval timebuf;
1013 struct timeval *tbuf = &timebuf;
1014 I32 growsize;
1015 char *fd_sets[4];
1016#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1017 I32 masksize;
1018 I32 offset;
1019 I32 k;
1020
1021# if BYTEORDER & 0xf0000
1022# define ORDERBYTE (0x88888888 - BYTEORDER)
1023# else
1024# define ORDERBYTE (0x4444 - BYTEORDER)
1025# endif
1026
1027#endif
1028
1029 SP -= 4;
1030 for (i = 1; i <= 3; i++) {
729c079f
NC		 1031 SV *sv = SP[i];
1032 if (SvOK(sv) && SvREADONLY(sv)) {
1033 if (SvIsCOW(sv))
1034 sv_force_normal_flags(sv, 0);
1035 if (SvREADONLY(sv))
1036 DIE(aTHX_ PL_no_modify);
1037 }
1038 if (!SvPOK(sv))
a0d0e21e 1039 continue;
729c079f 1040 j = SvCUR(sv);
a0d0e21e
LW		 1041 if (maxlen < j)
1042 maxlen = j;
1043 }
1044
5ff3f7a4 1045/* little endians can use vecs directly */
e366b469 1046#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1047# ifdef NFDBITS
a0d0e21e 1048
5ff3f7a4
GS		 1049# ifndef NBBY
1050# define NBBY 8
1051# endif
a0d0e21e
LW		 1052
1053 masksize = NFDBITS / NBBY;
5ff3f7a4 1054# else
a0d0e21e 1055 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1056# endif
a0d0e21e
LW		 1057 Zero(&fd_sets[0], 4, char*);
1058#endif
1059
ad517f75
MHM		 1060# if SELECT_MIN_BITS == 1
1061 growsize = sizeof(fd_set);
1062# else
1063# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1064# undef SELECT_MIN_BITS
1065# define SELECT_MIN_BITS __FD_SETSIZE
1066# endif
e366b469
PG		 1067 /* If SELECT_MIN_BITS is greater than one we most probably will want
1068 * to align the sizes with SELECT_MIN_BITS/8 because for example
1069 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1070 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1071 * on (sets/tests/clears bits) is 32 bits. */
1072 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1073# endif
1074
a0d0e21e
LW		 1075 sv = SP[4];
1076 if (SvOK(sv)) {
1077 value = SvNV(sv);
1078 if (value < 0.0)
1079 value = 0.0;
1080 timebuf.tv_sec = (long)value;
65202027 1081 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1082 timebuf.tv_usec = (long)(value * 1000000.0);
1083 }
1084 else
1085 tbuf = Null(struct timeval*);
1086
1087 for (i = 1; i <= 3; i++) {
1088 sv = SP[i];
1089 if (!SvOK(sv)) {
1090 fd_sets[i] = 0;
1091 continue;
1092 }
1093 else if (!SvPOK(sv))
8b6b16e7 1094 SvPV_force_nolen(sv); /* force string conversion */
a0d0e21e
LW		 1095 j = SvLEN(sv);
1096 if (j < growsize) {
1097 Sv_Grow(sv, growsize);
a0d0e21e 1098 }
c07a80fd 1099 j = SvCUR(sv);
1100 s = SvPVX(sv) + j;
1101 while (++j <= growsize) {
1102 *s++ = '\0';
1103 }
1104
a0d0e21e
LW		 1105#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1106 s = SvPVX(sv);
1107 New(403, fd_sets[i], growsize, char);
1108 for (offset = 0; offset < growsize; offset += masksize) {
1109 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1110 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1111 }
1112#else
1113 fd_sets[i] = SvPVX(sv);
1114#endif
1115 }
1116
dc4c69d9
JH		 1117#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1118 /* Can't make just the (void*) conditional because that would be
1119 * cpp #if within cpp macro, and not all compilers like that. */
1120 nfound = PerlSock_select(
1121 maxlen * 8,
1122 (Select_fd_set_t) fd_sets[1],
1123 (Select_fd_set_t) fd_sets[2],
1124 (Select_fd_set_t) fd_sets[3],
1125 (void*) tbuf); /* Workaround for compiler bug. */
1126#else
6ad3d225 1127 nfound = PerlSock_select(
a0d0e21e
LW		 1128 maxlen * 8,
1129 (Select_fd_set_t) fd_sets[1],
1130 (Select_fd_set_t) fd_sets[2],
1131 (Select_fd_set_t) fd_sets[3],
1132 tbuf);
dc4c69d9 1133#endif
a0d0e21e
LW		 1134 for (i = 1; i <= 3; i++) {
1135 if (fd_sets[i]) {
1136 sv = SP[i];
1137#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1138 s = SvPVX(sv);
1139 for (offset = 0; offset < growsize; offset += masksize) {
1140 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1141 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1142 }
1143 Safefree(fd_sets[i]);
1144#endif
1145 SvSETMAGIC(sv);
1146 }
1147 }
1148
5c477709
RGS		 1149 if (nfound == -1)
1150 PUSHs(&PL_sv_undef);
1151 else
1152 PUSHi(nfound);
a0d0e21e 1153 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1154 value = (NV)(timebuf.tv_sec) +
1155 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1156 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1157 sv_setnv(sv, value);
1158 }
1159 RETURN;
1160#else
cea2e8a9 1161 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1162#endif
1163}
1164
4633a7c4 1165void
864dbfa3 1166Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1167{
1168 if (gv)
1169 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1170 if (PL_defoutgv)
1171 SvREFCNT_dec(PL_defoutgv);
1172 PL_defoutgv = gv;
4633a7c4
LW		 1173}
1174
a0d0e21e
LW		 1175PP(pp_select)
1176{
39644a26 1177 dSP; dTARGET;
1df70142 1178 GV *egv;
4633a7c4
LW		 1179 HV *hv;
1180
1df70142 1181 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1182
3280af22 1183 egv = GvEGV(PL_defoutgv);
4633a7c4 1184 if (!egv)
3280af22 1185 egv = PL_defoutgv;
4633a7c4
LW		 1186 hv = GvSTASH(egv);
1187 if (! hv)
3280af22 1188 XPUSHs(&PL_sv_undef);
4633a7c4 1189 else {
1b6737cc 1190 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1191 if (gvp && *gvp == egv) {
f7aaccc2 1192 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1193 XPUSHTARG;
1194 }
1195 else {
1196 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1197 }
4633a7c4
LW		 1198 }
1199
1200 if (newdefout) {
ded8aa31
GS		 1201 if (!GvIO(newdefout))
1202 gv_IOadd(newdefout);
4633a7c4
LW		 1203 setdefout(newdefout);
1204 }
1205
a0d0e21e
LW		 1206 RETURN;
1207}
1208
1209PP(pp_getc)
1210{
27da23d5 1211 dVAR; dSP; dTARGET;
90133b69 1212 IO *io = NULL;
2ae324a7 1213 MAGIC *mg;
1b6737cc 1214 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1215
5b468f54
AMS		 1216 if (gv && (io = GvIO(gv))
1217 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1218 {
f54cb97a 1219 const I32 gimme = GIMME_V;
2ae324a7 1220 PUSHMARK(SP);
5b468f54 1221 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1222 PUTBACK;
1223 ENTER;
864dbfa3 1224 call_method("GETC", gimme);
2ae324a7 1225 LEAVE;
1226 SPAGAIN;
54310121 1227 if (gimme == G_SCALAR)
1228 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1229 RETURN;
1230 }
90133b69 1231 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1232 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1233 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1234 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1235 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1236 RETPUSHUNDEF;
90133b69 1237 }
bbce6d69 1238 TAINT;
c69006e4 1239 sv_setpvn(TARG, " ", 1);
9bc64814 1240 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1241 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1242 /* Find out how many bytes the char needs */
aa07b2f6 1243 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1244 if (len > 1) {
1245 SvGROW(TARG,len+1);
1246 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1247 SvCUR_set(TARG,1+len);
1248 }
1249 SvUTF8_on(TARG);
1250 }
a0d0e21e
LW		 1251 PUSHTARG;
1252 RETURN;
1253}
1254
1255PP(pp_read)
1256{
cea2e8a9 1257 return pp_sysread();
a0d0e21e
LW		 1258}
1259
76e3520e 1260STATIC OP *
cea2e8a9 1261S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1262{
27da23d5 1263 dVAR;
c09156bb 1264 register PERL_CONTEXT *cx;
f54cb97a 1265 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1266
1267 ENTER;
1268 SAVETMPS;
1269
146174a9 1270 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1271 PUSHFORMAT(cx);
f39bc417 1272 cx->blk_sub.retop = retop;
dd2155a4 1273 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1274
4633a7c4 1275 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1276 return CvSTART(cv);
1277}
1278
1279PP(pp_enterwrite)
1280{
39644a26 1281 dSP;
a0d0e21e
LW		 1282 register GV *gv;
1283 register IO *io;
1284 GV *fgv;
1285 CV *cv;
1286
1287 if (MAXARG == 0)
3280af22 1288 gv = PL_defoutgv;
a0d0e21e
LW		 1289 else {
1290 gv = (GV*)POPs;
1291 if (!gv)
3280af22 1292 gv = PL_defoutgv;
a0d0e21e
LW		 1293 }
1294 EXTEND(SP, 1);
1295 io = GvIO(gv);
1296 if (!io) {
1297 RETPUSHNO;
1298 }
1299 if (IoFMT_GV(io))
1300 fgv = IoFMT_GV(io);
1301 else
1302 fgv = gv;
1303
1304 cv = GvFORM(fgv);
a0d0e21e
LW		 1305 if (!cv) {
1306 if (fgv) {
1df70142 1307 SV * const tmpsv = sv_newmortal();
e62f0680 1308 const char *name;
43693395 1309 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1310 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1311 if (name && *name)
1312 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1313 }
cea2e8a9 1314 DIE(aTHX_ "Not a format reference");
a0d0e21e 1315 }
44a8e56a 1316 if (CvCLONE(cv))
1317 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1318
44a8e56a 1319 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1320 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1321}
1322
1323PP(pp_leavewrite)
1324{
27da23d5 1325 dVAR; dSP;
1b6737cc
AL		 1326 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1327 register IO * const io = GvIOp(gv);
1328 PerlIO * const ofp = IoOFP(io);
760ac839 1329 PerlIO *fp;
8772537c
AL		 1330 SV **newsp;
1331 I32 gimme;
c09156bb 1332 register PERL_CONTEXT *cx;
a0d0e21e 1333
760ac839 1334 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1335 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1336 if (!io || !ofp)
1337 goto forget_top;
3280af22
NIS		 1338 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1339 PL_formtarget != PL_toptarget)
a0d0e21e 1340 {
4633a7c4
LW		 1341 GV *fgv;
1342 CV *cv;
a0d0e21e
LW		 1343 if (!IoTOP_GV(io)) {
1344 GV *topgv;
a0d0e21e
LW		 1345
1346 if (!IoTOP_NAME(io)) {
1b6737cc 1347 SV *topname;
a0d0e21e
LW		 1348 if (!IoFMT_NAME(io))
1349 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1350 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1351 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1352 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1353 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1354 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1355 else
ff5bdd37 1356 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1357 }
1358 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1359 if (!topgv || !GvFORM(topgv)) {
b929a54b 1360 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1361 goto forget_top;
1362 }
1363 IoTOP_GV(io) = topgv;
1364 }
748a9306
LW		 1365 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1366 I32 lines = IoLINES_LEFT(io);
504618e9 1367 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1368 if (lines <= 0) /* Yow, header didn't even fit!!! */
1369 goto forget_top;
748a9306
LW		 1370 while (lines-- > 0) {
1371 s = strchr(s, '\n');
1372 if (!s)
1373 break;
1374 s++;
1375 }
1376 if (s) {
f54cb97a 1377 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1378 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1379 do_print(PL_formtarget, ofp);
1380 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1381 sv_chop(PL_formtarget, s);
1382 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1383 }
1384 }
a0d0e21e 1385 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1386 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1387 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1388 IoPAGE(io)++;
3280af22 1389 PL_formtarget = PL_toptarget;
748a9306 1390 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1391 fgv = IoTOP_GV(io);
1392 if (!fgv)
cea2e8a9 1393 DIE(aTHX_ "bad top format reference");
4633a7c4 1394 cv = GvFORM(fgv);
1df70142
AL		 1395 if (!cv) {
1396 SV * const sv = sv_newmortal();
b464bac0 1397 const char *name;
1df70142 1398 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1399 name = SvPV_nolen_const(sv);
2dd78f96 1400 if (name && *name)
1df70142 1401 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1402 }
1df70142
AL		 1403 /* why no:
1404 else
1405 DIE(aTHX_ "Undefined top format called");
1406 ?*/
44a8e56a 1407 if (CvCLONE(cv))
1408 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1409 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1410 }
1411
1412 forget_top:
3280af22 1413 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1414 POPFORMAT(cx);
1415 LEAVE;
1416
1417 fp = IoOFP(io);
1418 if (!fp) {
599cee73 1419 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1420 if (IoIFP(io))
1421 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1422 else if (ckWARN(WARN_CLOSED))
bc37a18f 1423 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1424 }
3280af22 1425 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1426 }
1427 else {
3280af22 1428 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1429 if (ckWARN(WARN_IO))
9014280d 1430 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1431 }
d75029d0 1432 if (!do_print(PL_formtarget, fp))
3280af22 1433 PUSHs(&PL_sv_no);
a0d0e21e 1434 else {
3280af22
NIS		 1435 FmLINES(PL_formtarget) = 0;
1436 SvCUR_set(PL_formtarget, 0);
1437 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1438 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1439 (void)PerlIO_flush(fp);
3280af22 1440 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1441 }
1442 }
9cbac4c7 1443 /* bad_ofp: */
3280af22 1444 PL_formtarget = PL_bodytarget;
a0d0e21e 1445 PUTBACK;
29033a8a
SH		 1446 PERL_UNUSED_VAR(newsp);
1447 PERL_UNUSED_VAR(gimme);
f39bc417 1448 return cx->blk_sub.retop;
a0d0e21e
LW		 1449}
1450
1451PP(pp_prtf)
1452{
27da23d5 1453 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1454 GV *gv;
1455 IO *io;
760ac839 1456 PerlIO *fp;
26db47c4 1457 SV *sv;
46fc3d4c 1458 MAGIC *mg;
a0d0e21e 1459
533c011a 1460 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1461 gv = (GV*)*++MARK;
1462 else
3280af22 1463 gv = PL_defoutgv;
46fc3d4c 1464
5b468f54
AMS		 1465 if (gv && (io = GvIO(gv))
1466 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1467 {
46fc3d4c 1468 if (MARK == ORIGMARK) {
4352c267 1469 MEXTEND(SP, 1);
46fc3d4c 1470 ++MARK;
1471 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1472 ++SP;
1473 }
1474 PUSHMARK(MARK - 1);
5b468f54 1475 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1476 PUTBACK;
1477 ENTER;
864dbfa3 1478 call_method("PRINTF", G_SCALAR);
46fc3d4c 1479 LEAVE;
1480 SPAGAIN;
1481 MARK = ORIGMARK + 1;
1482 *MARK = *SP;
1483 SP = MARK;
1484 RETURN;
1485 }
1486
26db47c4 1487 sv = NEWSV(0,0);
a0d0e21e 1488 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1489 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1490 report_evil_fh(gv, io, PL_op->op_type);
93189314 1491 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1492 goto just_say_no;
1493 }
1494 else if (!(fp = IoOFP(io))) {
599cee73 1495 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1496 if (IoIFP(io))
1497 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1498 else if (ckWARN(WARN_CLOSED))
bc37a18f 1499 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1500 }
93189314 1501 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1502 goto just_say_no;
1503 }
1504 else {
1505 do_sprintf(sv, SP - MARK, MARK + 1);
1506 if (!do_print(sv, fp))
1507 goto just_say_no;
1508
1509 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1510 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1511 goto just_say_no;
1512 }
1513 SvREFCNT_dec(sv);
1514 SP = ORIGMARK;
3280af22 1515 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1516 RETURN;
1517
1518 just_say_no:
1519 SvREFCNT_dec(sv);
1520 SP = ORIGMARK;
3280af22 1521 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1522 RETURN;
1523}
1524
c07a80fd 1525PP(pp_sysopen)
1526{
39644a26 1527 dSP;
1df70142
AL		 1528 const int perm = (MAXARG > 3) ? POPi : 0666;
1529 const int mode = POPi;
1b6737cc
AL		 1530 SV * const sv = POPs;
1531 GV * const gv = (GV *)POPs;
1532 STRLEN len;
c07a80fd 1533
4592e6ca 1534 /* Need TIEHANDLE method ? */
1b6737cc 1535 const char * const tmps = SvPV_const(sv, len);
e62f0680
NC		 1536 /* FIXME? do_open should do const */
1537 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1538 IoLINES(GvIOp(gv)) = 0;
3280af22 1539 PUSHs(&PL_sv_yes);
c07a80fd 1540 }
1541 else {
3280af22 1542 PUSHs(&PL_sv_undef);
c07a80fd 1543 }
1544 RETURN;
1545}
1546
a0d0e21e
LW		 1547PP(pp_sysread)
1548{
27da23d5 1549 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1550 int offset;
a0d0e21e
LW		 1551 IO *io;
1552 char *buffer;
5b54f415 1553 SSize_t length;
eb5c063a 1554 SSize_t count;
1e422769 1555 Sock_size_t bufsize;
748a9306 1556 SV *bufsv;
a0d0e21e 1557 STRLEN blen;
eb5c063a 1558 int fp_utf8;
1dd30107
NC		 1559 int buffer_utf8;
1560 SV *read_target;
eb5c063a
NIS		 1561 Size_t got = 0;
1562 Size_t wanted;
1d636c13 1563 bool charstart = FALSE;
87330c3c
JH		 1564 STRLEN charskip = 0;
1565 STRLEN skip = 0;
a0d0e21e 1566
1b6737cc 1567 GV * const gv = (GV*)*++MARK;
5b468f54 1568 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1569 && gv && (io = GvIO(gv)) )
137443ea 1570 {
1b6737cc
AL		 1571 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1572 if (mg) {
1573 SV *sv;
1574 PUSHMARK(MARK-1);
1575 *MARK = SvTIED_obj((SV*)io, mg);
1576 ENTER;
1577 call_method("READ", G_SCALAR);
1578 LEAVE;
1579 SPAGAIN;
1580 sv = POPs;
1581 SP = ORIGMARK;
1582 PUSHs(sv);
1583 RETURN;
1584 }
2ae324a7 1585 }
1586
a0d0e21e
LW		 1587 if (!gv)
1588 goto say_undef;
748a9306 1589 bufsv = *++MARK;
ff68c719 1590 if (! SvOK(bufsv))
1591 sv_setpvn(bufsv, "", 0);
a0d0e21e 1592 length = SvIVx(*++MARK);
748a9306 1593 SETERRNO(0,0);
a0d0e21e
LW		 1594 if (MARK < SP)
1595 offset = SvIVx(*++MARK);
1596 else
1597 offset = 0;
1598 io = GvIO(gv);
b5fe5ca2
SR		 1599 if (!io || !IoIFP(io)) {
1600 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1601 report_evil_fh(gv, io, PL_op->op_type);
1602 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1603 goto say_undef;
b5fe5ca2 1604 }
0064a8a9 1605 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1606 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1607 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1608 SvUTF8_on(bufsv);
9b9d7ce8 1609 buffer_utf8 = 0;
7d59b7e4
NIS		 1610 }
1611 else {
1612 buffer = SvPV_force(bufsv, blen);
1dd30107 1613 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1614 }
1615 if (length < 0)
1616 DIE(aTHX_ "Negative length");
eb5c063a 1617 wanted = length;
7d59b7e4 1618
d0965105
JH		 1619 charstart = TRUE;
1620 charskip = 0;
87330c3c 1621 skip = 0;
d0965105 1622
a0d0e21e 1623#ifdef HAS_SOCKET
533c011a 1624 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1625 char namebuf[MAXPATHLEN];
17a8c7ba 1626#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1627 bufsize = sizeof (struct sockaddr_in);
1628#else
46fc3d4c 1629 bufsize = sizeof namebuf;
490ab354 1630#endif
abf95952
IZ		 1631#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1632 if (bufsize >= 256)
1633 bufsize = 255;
1634#endif
eb160463 1635 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1636 /* 'offset' means 'flags' here */
eb5c063a 1637 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1638 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1639 if (count < 0)
a0d0e21e 1640 RETPUSHUNDEF;
4107cc59
OF		 1641#ifdef EPOC
1642 /* Bogus return without padding */
1643 bufsize = sizeof (struct sockaddr_in);
1644#endif
eb5c063a 1645 SvCUR_set(bufsv, count);
748a9306
LW		 1646 *SvEND(bufsv) = '\0';
1647 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1648 if (fp_utf8)
1649 SvUTF8_on(bufsv);
748a9306 1650 SvSETMAGIC(bufsv);
aac0dd9a 1651 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1652 if (!(IoFLAGS(io) & IOf_UNTAINT))
1653 SvTAINTED_on(bufsv);
a0d0e21e 1654 SP = ORIGMARK;
46fc3d4c 1655 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1656 PUSHs(TARG);
1657 RETURN;
1658 }
1659#else
911d147d 1660 if (PL_op->op_type == OP_RECV)
cea2e8a9 1661 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1662#endif
eb5c063a
NIS		 1663 if (DO_UTF8(bufsv)) {
1664 /* offset adjust in characters not bytes */
1665 blen = sv_len_utf8(bufsv);
7d59b7e4 1666 }
bbce6d69 1667 if (offset < 0) {
eb160463 1668 if (-offset > (int)blen)
cea2e8a9 1669 DIE(aTHX_ "Offset outside string");
bbce6d69 1670 offset += blen;
1671 }
eb5c063a
NIS		 1672 if (DO_UTF8(bufsv)) {
1673 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1674 if (offset >= (int)blen)
1675 offset += SvCUR(bufsv) - blen;
1676 else
1677 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1678 }
1679 more_bytes:
cd52b7b2 1680 bufsize = SvCUR(bufsv);
1dd30107
NC		 1681 /* Allocating length + offset + 1 isn't perfect in the case of reading
1682 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1683 unduly.
1684 (should be 2 * length + offset + 1, or possibly something longer if
1685 PL_encoding is true) */
eb160463 1686 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1687 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1688 Zero(buffer+bufsize, offset-bufsize, char);
1689 }
eb5c063a 1690 buffer = buffer + offset;
1dd30107
NC		 1691 if (!buffer_utf8) {
1692 read_target = bufsv;
1693 } else {
1694 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1695 concatenate it to the current buffer. */
1696
1697 /* Truncate the existing buffer to the start of where we will be
1698 reading to: */
1699 SvCUR_set(bufsv, offset);
1700
1701 read_target = sv_newmortal();
862a34c6 1702 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1703 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1704 }
eb5c063a 1705
533c011a 1706 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1707#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1708 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1709 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1710 buffer, length, 0);
a7092146
GS		 1711 }
1712 else
1713#endif
1714 {
eb5c063a
NIS		 1715 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1716 buffer, length);
a7092146 1717 }
a0d0e21e
LW		 1718 }
1719 else
1720#ifdef HAS_SOCKET__bad_code_maybe
50952442 1721 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1722 char namebuf[MAXPATHLEN];
490ab354
JH		 1723#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1724 bufsize = sizeof (struct sockaddr_in);
1725#else
46fc3d4c 1726 bufsize = sizeof namebuf;
490ab354 1727#endif
eb5c063a 1728 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1729 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1730 }
1731 else
1732#endif
3b02c43c 1733 {
eb5c063a
NIS		 1734 count = PerlIO_read(IoIFP(io), buffer, length);
1735 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1736 if (count == 0 && PerlIO_error(IoIFP(io)))
1737 count = -1;
3b02c43c 1738 }
eb5c063a 1739 if (count < 0) {
a00b5bd3 1740 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1741 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1742 goto say_undef;
af8c498a 1743 }
aa07b2f6 1744 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1745 *SvEND(read_target) = '\0';
1746 (void)SvPOK_only(read_target);
0064a8a9 1747 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1748 /* Look at utf8 we got back and count the characters */
1df70142 1749 const char *bend = buffer + count;
eb5c063a 1750 while (buffer < bend) {
d0965105
JH		 1751 if (charstart) {
1752 skip = UTF8SKIP(buffer);
1753 charskip = 0;
1754 }
1755 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1756 /* partial character - try for rest of it */
1757 length = skip - (bend-buffer);
aa07b2f6 1758 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1759 charstart = FALSE;
1760 charskip += count;
eb5c063a
NIS		 1761 goto more_bytes;
1762 }
1763 else {
1764 got++;
1765 buffer += skip;
d0965105
JH		 1766 charstart = TRUE;
1767 charskip = 0;
eb5c063a
NIS		 1768 }
1769 }
1770 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1771 provided amount read (count) was what was requested (length)
1772 */
1773 if (got < wanted && count == length) {
d0965105 1774 length = wanted - got;
aa07b2f6 1775 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1776 goto more_bytes;
1777 }
1778 /* return value is character count */
1779 count = got;
1780 SvUTF8_on(bufsv);
1781 }
1dd30107
NC		 1782 else if (buffer_utf8) {
1783 /* Let svcatsv upgrade the bytes we read in to utf8.
1784 The buffer is a mortal so will be freed soon. */
1785 sv_catsv_nomg(bufsv, read_target);
1786 }
748a9306 1787 SvSETMAGIC(bufsv);
aac0dd9a 1788 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1789 if (!(IoFLAGS(io) & IOf_UNTAINT))
1790 SvTAINTED_on(bufsv);
a0d0e21e 1791 SP = ORIGMARK;
eb5c063a 1792 PUSHi(count);
a0d0e21e
LW		 1793 RETURN;
1794
1795 say_undef:
1796 SP = ORIGMARK;
1797 RETPUSHUNDEF;
1798}
1799
1800PP(pp_syswrite)
1801{
27da23d5 1802 dVAR; dSP;
1df70142 1803 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1804 if (items == 2) {
9f089d78 1805 SV *sv;
092bebab 1806 EXTEND(SP, 1);
9f089d78
SB		 1807 sv = sv_2mortal(newSViv(sv_len(*SP)));
1808 PUSHs(sv);
092bebab
JH		 1809 PUTBACK;
1810 }
cea2e8a9 1811 return pp_send();
a0d0e21e
LW		 1812}
1813
1814PP(pp_send)
1815{
27da23d5 1816 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1817 GV *gv;
1818 IO *io;
748a9306 1819 SV *bufsv;
83003860 1820 const char *buffer;
8c99d73e
GS		 1821 Size_t length;
1822 SSize_t retval;
a0d0e21e 1823 STRLEN blen;
1d603a67 1824 MAGIC *mg;
a0d0e21e
LW		 1825
1826 gv = (GV*)*++MARK;
14befaf4 1827 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1828 && gv && (io = GvIO(gv))
1829 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1830 {
1d603a67
GB		 1831 SV *sv;
1832
1833 PUSHMARK(MARK-1);
5b468f54 1834 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1835 ENTER;
864dbfa3 1836 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1837 LEAVE;
1838 SPAGAIN;
1839 sv = POPs;
1840 SP = ORIGMARK;
1841 PUSHs(sv);
1842 RETURN;
1843 }
a0d0e21e
LW		 1844 if (!gv)
1845 goto say_undef;
748a9306 1846 bufsv = *++MARK;
8c99d73e 1847#if Size_t_size > IVSIZE
3c001241 1848 length = (Size_t)SvNVx(*++MARK);
146174a9 1849#else
3c001241 1850 length = (Size_t)SvIVx(*++MARK);
146174a9 1851#endif
3c001241 1852 if ((SSize_t)length < 0)
cea2e8a9 1853 DIE(aTHX_ "Negative length");
748a9306 1854 SETERRNO(0,0);
a0d0e21e
LW		 1855 io = GvIO(gv);
1856 if (!io || !IoIFP(io)) {
8c99d73e 1857 retval = -1;
bc37a18f
RG		 1858 if (ckWARN(WARN_CLOSED))
1859 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1860 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1861 goto say_undef;
1862 }
1863
1864 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1865 if (!SvUTF8(bufsv)) {
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 buffer = sv_2pvutf8(bufsv, &blen);
1868 } else
83003860 1869 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1870 }
7d59b7e4 1871 else {
4de5f5ca
JH		 1872 if (DO_UTF8(bufsv)) {
1873 /* Not modifying source SV, so making a temporary copy. */
1874 bufsv = sv_2mortal(newSVsv(bufsv));
1875 sv_utf8_downgrade(bufsv, FALSE);
1876 }
83003860 1877 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1878 }
1879
1880 if (PL_op->op_type == OP_SYSWRITE) {
1881 IV offset;
1882 if (DO_UTF8(bufsv)) {
1883 /* length and offset are in chars */
1884 blen = sv_len_utf8(bufsv);
1885 }
bbce6d69 1886 if (MARK < SP) {
a0d0e21e 1887 offset = SvIVx(*++MARK);
bbce6d69 1888 if (offset < 0) {
eb160463 1889 if (-offset > (IV)blen)
cea2e8a9 1890 DIE(aTHX_ "Offset outside string");
bbce6d69 1891 offset += blen;
eb160463 1892 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1893 DIE(aTHX_ "Offset outside string");
bbce6d69 1894 } else
a0d0e21e
LW		 1895 offset = 0;
1896 if (length > blen - offset)
1897 length = blen - offset;
7d59b7e4 1898 if (DO_UTF8(bufsv)) {
83003860 1899 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1900 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1901 }
1902 else {
1903 buffer = buffer+offset;
1904 }
a7092146 1905#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1906 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1907 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1908 buffer, length, 0);
a7092146
GS		 1909 }
1910 else
1911#endif
1912 {
94e4c244 1913 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1914 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1915 buffer, length);
a7092146 1916 }
a0d0e21e
LW		 1917 }
1918#ifdef HAS_SOCKET
1919 else if (SP > MARK) {
a0d0e21e 1920 STRLEN mlen;
1df70142 1921 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1922 /* length is really flags */
8c99d73e
GS		 1923 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1924 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1925 }
1926 else
7d59b7e4 1927 /* length is really flags */
8c99d73e 1928 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1929#else
1930 else
cea2e8a9 1931 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1932#endif
8c99d73e 1933 if (retval < 0)
a0d0e21e
LW		 1934 goto say_undef;
1935 SP = ORIGMARK;
f36eea10
JH		 1936 if (DO_UTF8(bufsv))
1937 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1938#if Size_t_size > IVSIZE
1939 PUSHn(retval);
1940#else
1941 PUSHi(retval);
1942#endif
a0d0e21e
LW		 1943 RETURN;
1944
1945 say_undef:
1946 SP = ORIGMARK;
1947 RETPUSHUNDEF;
1948}
1949
1950PP(pp_recv)
1951{
cea2e8a9 1952 return pp_sysread();
a0d0e21e
LW		 1953}
1954
1955PP(pp_eof)
1956{
27da23d5 1957 dVAR; dSP;
a0d0e21e 1958 GV *gv;
5b468f54 1959 IO *io;
4592e6ca 1960 MAGIC *mg;
a0d0e21e 1961
32da55ab 1962 if (MAXARG == 0) {
146174a9
CB		 1963 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1964 IO *io;
ed2c6b9b 1965 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1966 io = GvIO(gv);
1967 if (io && !IoIFP(io)) {
1968 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1969 IoLINES(io) = 0;
1970 IoFLAGS(io) &= ~IOf_START;
dd374669 1971 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1972 sv_setpvn(GvSV(gv), "-", 1);
1973 SvSETMAGIC(GvSV(gv));
1974 }
1975 else if (!nextargv(gv))
1976 RETPUSHYES;
1977 }
1978 }
1979 else
1980 gv = PL_last_in_gv; /* eof */
1981 }
a0d0e21e 1982 else
146174a9 1983 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1984
5b468f54
AMS		 1985 if (gv && (io = GvIO(gv))
1986 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1987 {
4592e6ca 1988 PUSHMARK(SP);
5b468f54 1989 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1990 PUTBACK;
1991 ENTER;
864dbfa3 1992 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1993 LEAVE;
1994 SPAGAIN;
1995 RETURN;
1996 }
1997
54310121 1998 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1999 RETURN;
2000}
2001
2002PP(pp_tell)
2003{
27da23d5 2004 dVAR; dSP; dTARGET;
301e8125 2005 GV *gv;
5b468f54 2006 IO *io;
4592e6ca 2007 MAGIC *mg;
a0d0e21e 2008
32da55ab 2009 if (MAXARG == 0)
3280af22 2010 gv = PL_last_in_gv;
a0d0e21e 2011 else
3280af22 2012 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2013
5b468f54
AMS		 2014 if (gv && (io = GvIO(gv))
2015 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2016 {
4592e6ca 2017 PUSHMARK(SP);
5b468f54 2018 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2019 PUTBACK;
2020 ENTER;
864dbfa3 2021 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2022 LEAVE;
2023 SPAGAIN;
2024 RETURN;
2025 }
2026
146174a9
CB		 2027#if LSEEKSIZE > IVSIZE
2028 PUSHn( do_tell(gv) );
2029#else
a0d0e21e 2030 PUSHi( do_tell(gv) );
146174a9 2031#endif
a0d0e21e
LW		 2032 RETURN;
2033}
2034
2035PP(pp_seek)
2036{
cea2e8a9 2037 return pp_sysseek();
137443ea 2038}
2039
2040PP(pp_sysseek)
2041{
27da23d5 2042 dVAR; dSP;
a0d0e21e 2043 GV *gv;
5b468f54 2044 IO *io;
1df70142 2045 const int whence = POPi;
146174a9
CB		 2046#if LSEEKSIZE > IVSIZE
2047 Off_t offset = (Off_t)SvNVx(POPs);
2048#else
d9b3e12d 2049 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2050#endif
4592e6ca 2051 MAGIC *mg;
a0d0e21e 2052
3280af22 2053 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2054
5b468f54
AMS		 2055 if (gv && (io = GvIO(gv))
2056 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2057 {
4592e6ca 2058 PUSHMARK(SP);
5b468f54 2059 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2060#if LSEEKSIZE > IVSIZE
2061 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2062#else
b448e4fe 2063 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2064#endif
b448e4fe 2065 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2066 PUTBACK;
2067 ENTER;
864dbfa3 2068 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2069 LEAVE;
2070 SPAGAIN;
2071 RETURN;
2072 }
2073
533c011a 2074 if (PL_op->op_type == OP_SEEK)
8903cb82 2075 PUSHs(boolSV(do_seek(gv, offset, whence)));
2076 else {
b448e4fe
JH		 2077 Off_t sought = do_sysseek(gv, offset, whence);
2078 if (sought < 0)
146174a9
CB		 2079 PUSHs(&PL_sv_undef);
2080 else {
b448e4fe 2081 SV* sv = sought ?
146174a9 2082#if LSEEKSIZE > IVSIZE
b448e4fe 2083 newSVnv((NV)sought)
146174a9 2084#else
b448e4fe 2085 newSViv(sought)
146174a9
CB		 2086#endif
2087 : newSVpvn(zero_but_true, ZBTLEN);
2088 PUSHs(sv_2mortal(sv));
2089 }
8903cb82 2090 }
a0d0e21e
LW		 2091 RETURN;
2092}
2093
2094PP(pp_truncate)
2095{
39644a26 2096 dSP;
8c99d73e
GS		 2097 /* There seems to be no consensus on the length type of truncate()
2098 * and ftruncate(), both off_t and size_t have supporters. In
2099 * general one would think that when using large files, off_t is
2100 * at least as wide as size_t, so using an off_t should be okay. */
2101 /* XXX Configure probe for the length type of *truncate() needed XXX */
2102 Off_t len;
a0d0e21e 2103
25342a55 2104#if Off_t_size > IVSIZE
8c99d73e
GS		 2105 len = (Off_t)POPn;
2106#else
2107 len = (Off_t)POPi;
2108#endif
2109 /* Checking for length < 0 is problematic as the type might or
301e8125 2110 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2111 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2112 SETERRNO(0,0);
d05c1ba0 2113 {
d05c1ba0
JH		 2114 int result = 1;
2115 GV *tmpgv;
090bf15b
SR		 2116 IO *io;
2117
d05c1ba0 2118 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2119 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2120
090bf15b
SR		 2121 do_ftruncate_gv:
2122 if (!GvIO(tmpgv))
2123 result = 0;
d05c1ba0 2124 else {
090bf15b
SR		 2125 PerlIO *fp;
2126 io = GvIOp(tmpgv);
2127 do_ftruncate_io:
2128 TAINT_PROPER("truncate");
2129 if (!(fp = IoIFP(io))) {
2130 result = 0;
2131 }
2132 else {
2133 PerlIO_flush(fp);
cbdc8872 2134#ifdef HAS_TRUNCATE
090bf15b 2135 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2136#else
090bf15b 2137 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2138#endif
090bf15b
SR		 2139 result = 0;
2140 }
d05c1ba0 2141 }
cbdc8872 2142 }
d05c1ba0
JH		 2143 else {
2144 SV *sv = POPs;
83003860 2145 const char *name;
7a5fd60d 2146
d05c1ba0
JH		 2147 if (SvTYPE(sv) == SVt_PVGV) {
2148 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2149 goto do_ftruncate_gv;
d05c1ba0
JH		 2150 }
2151 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2152 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2153 goto do_ftruncate_gv;
2154 }
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2156 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2157 goto do_ftruncate_io;
d05c1ba0 2158 }
1e422769 2159
83003860 2160 name = SvPV_nolen_const(sv);
d05c1ba0 2161 TAINT_PROPER("truncate");
cbdc8872 2162#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2163 if (truncate(name, len) < 0)
2164 result = 0;
cbdc8872 2165#else
d05c1ba0
JH		 2166 {
2167 int tmpfd;
2168
2169 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2170 result = 0;
d05c1ba0
JH		 2171 else {
2172 if (my_chsize(tmpfd, len) < 0)
2173 result = 0;
2174 PerlLIO_close(tmpfd);
2175 }
cbdc8872 2176 }
a0d0e21e 2177#endif
d05c1ba0 2178 }
a0d0e21e 2179
d05c1ba0
JH		 2180 if (result)
2181 RETPUSHYES;
2182 if (!errno)
93189314 2183 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2184 RETPUSHUNDEF;
2185 }
a0d0e21e
LW		 2186}
2187
2188PP(pp_fcntl)
2189{
cea2e8a9 2190 return pp_ioctl();
a0d0e21e
LW		 2191}
2192
2193PP(pp_ioctl)
2194{
39644a26 2195 dSP; dTARGET;
748a9306 2196 SV *argsv = POPs;
1df70142 2197 const unsigned int func = POPu;
e1ec3a88 2198 const int optype = PL_op->op_type;
a0d0e21e 2199 char *s;
324aa91a 2200 IV retval;
a0d0e21e 2201 GV *gv = (GV*)POPs;
c289d2f7 2202 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2203
748a9306 2204 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2205 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2206 report_evil_fh(gv, io, PL_op->op_type);
93189314 2207 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2208 RETPUSHUNDEF;
2209 }
2210
748a9306 2211 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2212 STRLEN len;
324aa91a 2213 STRLEN need;
748a9306 2214 s = SvPV_force(argsv, len);
324aa91a
HF		 2215 need = IOCPARM_LEN(func);
2216 if (len < need) {
2217 s = Sv_Grow(argsv, need + 1);
2218 SvCUR_set(argsv, need);
a0d0e21e
LW		 2219 }
2220
748a9306 2221 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2222 }
2223 else {
748a9306 2224 retval = SvIV(argsv);
c529f79d 2225 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2226 }
2227
2228 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2229
2230 if (optype == OP_IOCTL)
2231#ifdef HAS_IOCTL
76e3520e 2232 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2233#else
cea2e8a9 2234 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2235#endif
2236 else
c214f4ad
WB		 2237#ifndef HAS_FCNTL
2238 DIE(aTHX_ "fcntl is not implemented");
2239#else
55497cff 2240#if defined(OS2) && defined(__EMX__)
760ac839 2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2242#else
760ac839 2243 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2244#endif
6652bd42 2245#endif
a0d0e21e 2246
6652bd42 2247#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2248 if (SvPOK(argsv)) {
2249 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2250 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2251 OP_NAME(PL_op));
748a9306
LW		 2252 s[SvCUR(argsv)] = 0; /* put our null back */
2253 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2254 }
2255
2256 if (retval == -1)
2257 RETPUSHUNDEF;
2258 if (retval != 0) {
2259 PUSHi(retval);
2260 }
2261 else {
8903cb82 2262 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2263 }
4808266b 2264#endif
c214f4ad 2265 RETURN;
a0d0e21e
LW		 2266}
2267
2268PP(pp_flock)
2269{
9cad6237 2270#ifdef FLOCK
39644a26 2271 dSP; dTARGET;
a0d0e21e
LW		 2272 I32 value;
2273 int argtype;
2274 GV *gv;
bc37a18f 2275 IO *io = NULL;
760ac839 2276 PerlIO *fp;
16d20bd9 2277
a0d0e21e 2278 argtype = POPi;
32da55ab 2279 if (MAXARG == 0)
3280af22 2280 gv = PL_last_in_gv;
a0d0e21e
LW		 2281 else
2282 gv = (GV*)POPs;
bc37a18f
RG		 2283 if (gv && (io = GvIO(gv)))
2284 fp = IoIFP(io);
2285 else {
a0d0e21e 2286 fp = Nullfp;
bc37a18f
RG		 2287 io = NULL;
2288 }
a0d0e21e 2289 if (fp) {
68dc0745 2290 (void)PerlIO_flush(fp);
76e3520e 2291 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2292 }
cb50131a 2293 else {
bc37a18f
RG		 2294 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2295 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2296 value = 0;
93189314 2297 SETERRNO(EBADF,RMS_IFI);
cb50131a 2298 }
a0d0e21e
LW		 2299 PUSHi(value);
2300 RETURN;
2301#else
cea2e8a9 2302 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2303#endif
2304}
2305
2306/* Sockets. */
2307
2308PP(pp_socket)
2309{
a0d0e21e 2310#ifdef HAS_SOCKET
9cad6237 2311 dSP;
a0d0e21e
LW		 2312 GV *gv;
2313 register IO *io;
2314 int protocol = POPi;
2315 int type = POPi;
2316 int domain = POPi;
2317 int fd;
2318
2319 gv = (GV*)POPs;
c289d2f7 2320 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2321
c289d2f7
JH		 2322 if (!gv || !io) {
2323 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2324 report_evil_fh(gv, io, PL_op->op_type);
2325 if (IoIFP(io))
2326 do_close(gv, FALSE);
93189314 2327 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2328 RETPUSHUNDEF;
2329 }
2330
57171420
BS		 2331 if (IoIFP(io))
2332 do_close(gv, FALSE);
2333
a0d0e21e 2334 TAINT_PROPER("socket");
6ad3d225 2335 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2336 if (fd < 0)
2337 RETPUSHUNDEF;
460c8493
IZ		 2338 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2339 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2340 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2341 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2342 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2343 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2344 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2345 RETPUSHUNDEF;
2346 }
8d2a6795
GS		 2347#if defined(HAS_FCNTL) && defined(F_SETFD)
2348 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2349#endif
a0d0e21e 2350
d5ff79b3
OF		 2351#ifdef EPOC
2352 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2353#endif
2354
a0d0e21e
LW		 2355 RETPUSHYES;
2356#else
cea2e8a9 2357 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2358#endif
2359}
2360
2361PP(pp_sockpair)
2362{
c95c94b1 2363#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2364 dSP;
a0d0e21e
LW		 2365 GV *gv1;
2366 GV *gv2;
2367 register IO *io1;
2368 register IO *io2;
2369 int protocol = POPi;
2370 int type = POPi;
2371 int domain = POPi;
2372 int fd[2];
2373
2374 gv2 = (GV*)POPs;
2375 gv1 = (GV*)POPs;
c289d2f7
JH		 2376 io1 = gv1 ? GvIOn(gv1) : NULL;
2377 io2 = gv2 ? GvIOn(gv2) : NULL;
2378 if (!gv1 || !gv2 || !io1 || !io2) {
2379 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2380 if (!gv1 || !io1)
2381 report_evil_fh(gv1, io1, PL_op->op_type);
2382 if (!gv2 || !io2)
2383 report_evil_fh(gv1, io2, PL_op->op_type);
2384 }
2385 if (IoIFP(io1))
2386 do_close(gv1, FALSE);
2387 if (IoIFP(io2))
2388 do_close(gv2, FALSE);
a0d0e21e 2389 RETPUSHUNDEF;
c289d2f7 2390 }
a0d0e21e 2391
dc0d0a5f
JH		 2392 if (IoIFP(io1))
2393 do_close(gv1, FALSE);
2394 if (IoIFP(io2))
2395 do_close(gv2, FALSE);
57171420 2396
a0d0e21e 2397 TAINT_PROPER("socketpair");
6ad3d225 2398 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2399 RETPUSHUNDEF;
460c8493
IZ		 2400 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2401 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2402 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2403 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2405 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2406 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2407 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2408 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2409 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2410 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2411 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2412 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2413 RETPUSHUNDEF;
2414 }
8d2a6795
GS		 2415#if defined(HAS_FCNTL) && defined(F_SETFD)
2416 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2417 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2418#endif
a0d0e21e
LW		 2419
2420 RETPUSHYES;
2421#else
cea2e8a9 2422 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2423#endif
2424}
2425
2426PP(pp_bind)
2427{
a0d0e21e 2428#ifdef HAS_SOCKET
9cad6237 2429 dSP;
eec2d3df 2430#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2431 extern void GETPRIVMODE();
2432 extern void GETUSERMODE();
eec2d3df 2433#endif
748a9306 2434 SV *addrsv = POPs;
349d4f2f
NC		 2435 /* OK, so on what platform does bind modify addr? */
2436 const char *addr;
a0d0e21e
LW		 2437 GV *gv = (GV*)POPs;
2438 register IO *io = GvIOn(gv);
2439 STRLEN len;
eec2d3df
GS		 2440 int bind_ok = 0;
2441#ifdef MPE
2442 int mpeprivmode = 0;
2443#endif
a0d0e21e
LW		 2444
2445 if (!io || !IoIFP(io))
2446 goto nuts;
2447
349d4f2f 2448 addr = SvPV_const(addrsv, len);
a0d0e21e 2449 TAINT_PROPER("bind");
eec2d3df
GS		 2450#ifdef MPE /* Deal with MPE bind() peculiarities */
2451 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2452 /* The address *MUST* stupidly be zero. */
2453 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2454 /* PRIV mode is required to bind() to ports < 1024. */
2455 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2456 ((struct sockaddr_in *)addr)->sin_port > 0) {
2457 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2458 mpeprivmode = 1;
2459 }
2460 }
2461#endif /* MPE */
2462 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2463 (struct sockaddr *)addr, len) >= 0)
2464 bind_ok = 1;
2465
2466#ifdef MPE /* Switch back to USER mode */
2467 if (mpeprivmode)
2468 GETUSERMODE();
2469#endif /* MPE */
2470
2471 if (bind_ok)
a0d0e21e
LW		 2472 RETPUSHYES;
2473 else
2474 RETPUSHUNDEF;
2475
2476nuts:
599cee73 2477 if (ckWARN(WARN_CLOSED))
bc37a18f 2478 report_evil_fh(gv, io, PL_op->op_type);
93189314 2479 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2480 RETPUSHUNDEF;
2481#else
cea2e8a9 2482 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2483#endif
2484}
2485
2486PP(pp_connect)
2487{
a0d0e21e 2488#ifdef HAS_SOCKET
9cad6237 2489 dSP;
748a9306 2490 SV *addrsv = POPs;
349d4f2f 2491 const char *addr;
a0d0e21e
LW		 2492 GV *gv = (GV*)POPs;
2493 register IO *io = GvIOn(gv);
2494 STRLEN len;
2495
2496 if (!io || !IoIFP(io))
2497 goto nuts;
2498
349d4f2f 2499 addr = SvPV_const(addrsv, len);
a0d0e21e 2500 TAINT_PROPER("connect");
6ad3d225 2501 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2502 RETPUSHYES;
2503 else
2504 RETPUSHUNDEF;
2505
2506nuts:
599cee73 2507 if (ckWARN(WARN_CLOSED))
bc37a18f 2508 report_evil_fh(gv, io, PL_op->op_type);
93189314 2509 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2510 RETPUSHUNDEF;
2511#else
cea2e8a9 2512 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2513#endif
2514}
2515
2516PP(pp_listen)
2517{
a0d0e21e 2518#ifdef HAS_SOCKET
9cad6237 2519 dSP;
a0d0e21e
LW		 2520 int backlog = POPi;
2521 GV *gv = (GV*)POPs;
c289d2f7 2522 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2523
c289d2f7 2524 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2525 goto nuts;
2526
6ad3d225 2527 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2528 RETPUSHYES;
2529 else
2530 RETPUSHUNDEF;
2531
2532nuts:
599cee73 2533 if (ckWARN(WARN_CLOSED))
bc37a18f 2534 report_evil_fh(gv, io, PL_op->op_type);
93189314 2535 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2536 RETPUSHUNDEF;
2537#else
cea2e8a9 2538 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2539#endif
2540}
2541
2542PP(pp_accept)
2543{
a0d0e21e 2544#ifdef HAS_SOCKET
9cad6237 2545 dSP; dTARGET;
a0d0e21e
LW		 2546 GV *ngv;
2547 GV *ggv;
2548 register IO *nstio;
2549 register IO *gstio;
93d47a36
JH		 2550 char namebuf[MAXPATHLEN];
2551#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2552 Sock_size_t len = sizeof (struct sockaddr_in);
2553#else
2554 Sock_size_t len = sizeof namebuf;
2555#endif
a0d0e21e
LW		 2556 int fd;
2557
2558 ggv = (GV*)POPs;
2559 ngv = (GV*)POPs;
2560
2561 if (!ngv)
2562 goto badexit;
2563 if (!ggv)
2564 goto nuts;
2565
2566 gstio = GvIO(ggv);
2567 if (!gstio || !IoIFP(gstio))
2568 goto nuts;
2569
2570 nstio = GvIOn(ngv);
93d47a36 2571 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2572 if (fd < 0)
2573 goto badexit;
a70048fb
AB		 2574 if (IoIFP(nstio))
2575 do_close(ngv, FALSE);
460c8493
IZ		 2576 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2577 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2578 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2579 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2580 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2581 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2582 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2583 goto badexit;
2584 }
8d2a6795
GS		 2585#if defined(HAS_FCNTL) && defined(F_SETFD)
2586 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2587#endif
a0d0e21e 2588
ed79a026 2589#ifdef EPOC
93d47a36 2590 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2591 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2592#endif
381c1bae 2593#ifdef __SCO_VERSION__
93d47a36 2594 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2595#endif
ed79a026 2596
93d47a36 2597 PUSHp(namebuf, len);
a0d0e21e
LW		 2598 RETURN;
2599
2600nuts:
599cee73 2601 if (ckWARN(WARN_CLOSED))
bc37a18f 2602 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2603 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2604
2605badexit:
2606 RETPUSHUNDEF;
2607
2608#else
cea2e8a9 2609 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2610#endif
2611}
2612
2613PP(pp_shutdown)
2614{
a0d0e21e 2615#ifdef HAS_SOCKET
9cad6237 2616 dSP; dTARGET;
a0d0e21e
LW		 2617 int how = POPi;
2618 GV *gv = (GV*)POPs;
2619 register IO *io = GvIOn(gv);
2620
2621 if (!io || !IoIFP(io))
2622 goto nuts;
2623
6ad3d225 2624 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2625 RETURN;
2626
2627nuts:
599cee73 2628 if (ckWARN(WARN_CLOSED))
bc37a18f 2629 report_evil_fh(gv, io, PL_op->op_type);
93189314 2630 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2631 RETPUSHUNDEF;
2632#else
cea2e8a9 2633 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2634#endif
2635}
2636
2637PP(pp_gsockopt)
2638{
2639#ifdef HAS_SOCKET
cea2e8a9 2640 return pp_ssockopt();
a0d0e21e 2641#else
cea2e8a9 2642 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2643#endif
2644}
2645
2646PP(pp_ssockopt)
2647{
a0d0e21e 2648#ifdef HAS_SOCKET
9cad6237 2649 dSP;
533c011a 2650 int optype = PL_op->op_type;
a0d0e21e
LW		 2651 SV *sv;
2652 int fd;
2653 unsigned int optname;
2654 unsigned int lvl;
2655 GV *gv;
2656 register IO *io;
1e422769 2657 Sock_size_t len;
a0d0e21e
LW		 2658
2659 if (optype == OP_GSOCKOPT)
2660 sv = sv_2mortal(NEWSV(22, 257));
2661 else
2662 sv = POPs;
2663 optname = (unsigned int) POPi;
2664 lvl = (unsigned int) POPi;
2665
2666 gv = (GV*)POPs;
2667 io = GvIOn(gv);
2668 if (!io || !IoIFP(io))
2669 goto nuts;
2670
760ac839 2671 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2672 switch (optype) {
2673 case OP_GSOCKOPT:
748a9306 2674 SvGROW(sv, 257);
a0d0e21e 2675 (void)SvPOK_only(sv);
748a9306
LW		 2676 SvCUR_set(sv,256);
2677 *SvEND(sv) ='\0';
1e422769 2678 len = SvCUR(sv);
6ad3d225 2679 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2680 goto nuts2;
1e422769 2681 SvCUR_set(sv, len);
748a9306 2682 *SvEND(sv) ='\0';
a0d0e21e
LW		 2683 PUSHs(sv);
2684 break;
2685 case OP_SSOCKOPT: {
349d4f2f 2686 const char *buf;
1e422769 2687 int aint;
2688 if (SvPOKp(sv)) {
2d8e6c8d 2689 STRLEN l;
349d4f2f 2690 buf = SvPV_const(sv, l);
2d8e6c8d 2691 len = l;
1e422769 2692 }
56ee1660 2693 else {
a0d0e21e 2694 aint = (int)SvIV(sv);
349d4f2f 2695 buf = (const char*)&aint;
a0d0e21e
LW		 2696 len = sizeof(int);
2697 }
6ad3d225 2698 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2699 goto nuts2;
3280af22 2700 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2701 }
2702 break;
2703 }
2704 RETURN;
2705
2706nuts:
599cee73 2707 if (ckWARN(WARN_CLOSED))
bc37a18f 2708 report_evil_fh(gv, io, optype);
93189314 2709 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2710nuts2:
2711 RETPUSHUNDEF;
2712
2713#else
cea2e8a9 2714 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2715#endif
2716}
2717
2718PP(pp_getsockname)
2719{
2720#ifdef HAS_SOCKET
cea2e8a9 2721 return pp_getpeername();
a0d0e21e 2722#else
cea2e8a9 2723 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2724#endif
2725}
2726
2727PP(pp_getpeername)
2728{
a0d0e21e 2729#ifdef HAS_SOCKET
9cad6237 2730 dSP;
533c011a 2731 int optype = PL_op->op_type;
a0d0e21e
LW		 2732 SV *sv;
2733 int fd;
2734 GV *gv = (GV*)POPs;
2735 register IO *io = GvIOn(gv);
1e422769 2736 Sock_size_t len;
a0d0e21e
LW		 2737
2738 if (!io || !IoIFP(io))
2739 goto nuts;
2740
2741 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2742 (void)SvPOK_only(sv);
1e422769 2743 len = 256;
2744 SvCUR_set(sv, len);
748a9306 2745 *SvEND(sv) ='\0';
760ac839 2746 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2747 switch (optype) {
2748 case OP_GETSOCKNAME:
6ad3d225 2749 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2750 goto nuts2;
2751 break;
2752 case OP_GETPEERNAME:
6ad3d225 2753 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2754 goto nuts2;
490ab354
JH		 2755#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2756 {
2757 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";
2758 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f
NC		 2759 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2760 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2761 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2762 goto nuts2;
490ab354
JH		 2763 }
2764 }
2765#endif
a0d0e21e
LW		 2766 break;
2767 }
13826f2c
CS		 2768#ifdef BOGUS_GETNAME_RETURN
2769 /* Interactive Unix, getpeername() and getsockname()
2770 does not return valid namelen */
1e422769 2771 if (len == BOGUS_GETNAME_RETURN)
2772 len = sizeof(struct sockaddr);
13826f2c 2773#endif
1e422769 2774 SvCUR_set(sv, len);
748a9306 2775 *SvEND(sv) ='\0';
a0d0e21e
LW		 2776 PUSHs(sv);
2777 RETURN;
2778
2779nuts:
599cee73 2780 if (ckWARN(WARN_CLOSED))
bc37a18f 2781 report_evil_fh(gv, io, optype);
93189314 2782 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2783nuts2:
2784 RETPUSHUNDEF;
2785
2786#else
cea2e8a9 2787 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2788#endif
2789}
2790
2791/* Stat calls. */
2792
2793PP(pp_lstat)
2794{
cea2e8a9 2795 return pp_stat();
a0d0e21e
LW		 2796}
2797
2798PP(pp_stat)
2799{
39644a26 2800 dSP;
2dd78f96 2801 GV *gv;
54310121 2802 I32 gimme;
a0d0e21e
LW		 2803 I32 max = 13;
2804
533c011a 2805 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2806 gv = cGVOP_gv;
8a4e5b40 2807 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2808 if (gv != PL_defgv) {
2809 if (ckWARN(WARN_IO))
9014280d 2810 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2811 "lstat() on filehandle %s", GvENAME(gv));
2812 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2813 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2814 }
2815
748a9306 2816 do_fstat:
2dd78f96 2817 if (gv != PL_defgv) {
3280af22 2818 PL_laststype = OP_STAT;
2dd78f96 2819 PL_statgv = gv;
c69006e4 2820 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2821 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2822 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2823 }
9ddeeac9 2824 if (PL_laststatval < 0) {
2dd78f96
JH		 2825 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2826 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2827 max = 0;
9ddeeac9 2828 }
a0d0e21e
LW		 2829 }
2830 else {
748a9306
LW		 2831 SV* sv = POPs;
2832 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2833 gv = (GV*)sv;
748a9306
LW		 2834 goto do_fstat;
2835 }
2836 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2837 gv = (GV*)SvRV(sv);
5d3e98de 2838 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2839 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2840 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2841 goto do_fstat;
2842 }
0510663f 2843 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2844 PL_statgv = Nullgv;
533c011a
NIS		 2845 PL_laststype = PL_op->op_type;
2846 if (PL_op->op_type == OP_LSTAT)
0510663f 2847 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2848 else
0510663f 2849 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2850 if (PL_laststatval < 0) {
0510663f 2851 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2852 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2853 max = 0;
2854 }
2855 }
2856
54310121 2857 gimme = GIMME_V;
2858 if (gimme != G_ARRAY) {
2859 if (gimme != G_VOID)
2860 XPUSHs(boolSV(max));
2861 RETURN;
a0d0e21e
LW		 2862 }
2863 if (max) {
36477c24 2864 EXTEND(SP, max);
2865 EXTEND_MORTAL(max);
1ff81528
PL		 2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2868 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2870#if Uid_t_size > IVSIZE
2871 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2872#else
23dcd6c8 2873# if Uid_t_sign <= 0
1ff81528 2874 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2875# else
2876 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2877# endif
146174a9 2878#endif
301e8125 2879#if Gid_t_size > IVSIZE
146174a9
CB		 2880 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2881#else
23dcd6c8 2882# if Gid_t_sign <= 0
1ff81528 2883 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2884# else
2885 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2886# endif
146174a9 2887#endif
cbdc8872 2888#ifdef USE_STAT_RDEV
1ff81528 2889 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2890#else
79cb57f6 2891 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2892#endif
146174a9 2893#if Off_t_size > IVSIZE
4a9d6100 2894 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2895#else
1ff81528 2896 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2897#endif
cbdc8872 2898#ifdef BIG_TIME
172ae379
JH		 2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2902#else
1ff81528
PL		 2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2906#endif
a0d0e21e 2907#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2908 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2910#else
79cb57f6
GS		 2911 PUSHs(sv_2mortal(newSVpvn("", 0)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2913#endif
2914 }
2915 RETURN;
2916}
2917
fbb0b3b3
RGS		 2918/* This macro is used by the stacked filetest operators :
2919 * if the previous filetest failed, short-circuit and pass its value.
2920 * Else, discard it from the stack and continue. --rgs
2921 */
2922#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2923 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2924 else { (void)POPs; PUTBACK; } \
2925 }
2926
a0d0e21e
LW		 2927PP(pp_ftrread)
2928{
9cad6237 2929 I32 result;
2a3ff820 2930 dSP;
fbb0b3b3 2931 STACKED_FTEST_CHECK;
5ff3f7a4 2932#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2933 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2934 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2935 if (result == 0)
2936 RETPUSHYES;
2937 if (result < 0)
2938 RETPUSHUNDEF;
2939 RETPUSHNO;
22865c03
GS		 2940 }
2941 else
cea2e8a9 2942 result = my_stat();
5ff3f7a4 2943#else
cea2e8a9 2944 result = my_stat();
5ff3f7a4 2945#endif
22865c03 2946 SPAGAIN;
a0d0e21e
LW		 2947 if (result < 0)
2948 RETPUSHUNDEF;
3280af22 2949 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2950 RETPUSHYES;
2951 RETPUSHNO;
2952}
2953
2954PP(pp_ftrwrite)
2955{
9cad6237 2956 I32 result;
2a3ff820 2957 dSP;
fbb0b3b3 2958 STACKED_FTEST_CHECK;
5ff3f7a4 2959#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2960 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2961 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2962 if (result == 0)
2963 RETPUSHYES;
2964 if (result < 0)
2965 RETPUSHUNDEF;
2966 RETPUSHNO;
22865c03
GS		 2967 }
2968 else
cea2e8a9 2969 result = my_stat();
5ff3f7a4 2970#else
cea2e8a9 2971 result = my_stat();
5ff3f7a4 2972#endif
22865c03 2973 SPAGAIN;
a0d0e21e
LW		 2974 if (result < 0)
2975 RETPUSHUNDEF;
3280af22 2976 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2977 RETPUSHYES;
2978 RETPUSHNO;
2979}
2980
2981PP(pp_ftrexec)
2982{
9cad6237 2983 I32 result;
2a3ff820 2984 dSP;
fbb0b3b3 2985 STACKED_FTEST_CHECK;
5ff3f7a4 2986#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2987 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2988 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2989 if (result == 0)
2990 RETPUSHYES;
2991 if (result < 0)
2992 RETPUSHUNDEF;
2993 RETPUSHNO;
22865c03
GS		 2994 }
2995 else
cea2e8a9 2996 result = my_stat();
5ff3f7a4 2997#else
cea2e8a9 2998 result = my_stat();
5ff3f7a4 2999#endif
22865c03 3000 SPAGAIN;
a0d0e21e
LW		 3001 if (result < 0)
3002 RETPUSHUNDEF;
3280af22 3003 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3004 RETPUSHYES;
3005 RETPUSHNO;
3006}
3007
3008PP(pp_fteread)
3009{
9cad6237 3010 I32 result;
2a3ff820 3011 dSP;
fbb0b3b3 3012 STACKED_FTEST_CHECK;
5ff3f7a4 3013#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3014 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3015 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3016 if (result == 0)
3017 RETPUSHYES;
3018 if (result < 0)
3019 RETPUSHUNDEF;
3020 RETPUSHNO;
22865c03
GS		 3021 }
3022 else
cea2e8a9 3023 result = my_stat();
5ff3f7a4 3024#else
cea2e8a9 3025 result = my_stat();
5ff3f7a4 3026#endif
22865c03 3027 SPAGAIN;
a0d0e21e
LW		 3028 if (result < 0)
3029 RETPUSHUNDEF;
3280af22 3030 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3031 RETPUSHYES;
3032 RETPUSHNO;
3033}
3034
3035PP(pp_ftewrite)
3036{
9cad6237 3037 I32 result;
2a3ff820 3038 dSP;
fbb0b3b3 3039 STACKED_FTEST_CHECK;
5ff3f7a4 3040#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3041 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3042 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3043 if (result == 0)
3044 RETPUSHYES;
3045 if (result < 0)
3046 RETPUSHUNDEF;
3047 RETPUSHNO;
22865c03
GS		 3048 }
3049 else
cea2e8a9 3050 result = my_stat();
5ff3f7a4 3051#else
cea2e8a9 3052 result = my_stat();
5ff3f7a4 3053#endif
22865c03 3054 SPAGAIN;
a0d0e21e
LW		 3055 if (result < 0)
3056 RETPUSHUNDEF;
3280af22 3057 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3058 RETPUSHYES;
3059 RETPUSHNO;
3060}
3061
3062PP(pp_fteexec)
3063{
9cad6237 3064 I32 result;
2a3ff820 3065 dSP;
fbb0b3b3 3066 STACKED_FTEST_CHECK;
5ff3f7a4 3067#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3068 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3069 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3070 if (result == 0)
3071 RETPUSHYES;
3072 if (result < 0)
3073 RETPUSHUNDEF;
3074 RETPUSHNO;
22865c03
GS		 3075 }
3076 else
cea2e8a9 3077 result = my_stat();
5ff3f7a4 3078#else
cea2e8a9 3079 result = my_stat();
5ff3f7a4 3080#endif
22865c03 3081 SPAGAIN;
a0d0e21e
LW		 3082 if (result < 0)
3083 RETPUSHUNDEF;
3280af22 3084 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3085 RETPUSHYES;
3086 RETPUSHNO;
3087}
3088
3089PP(pp_ftis)
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;
3098 RETPUSHYES;
3099}
3100
3101PP(pp_fteowned)
3102{
cea2e8a9 3103 return pp_ftrowned();
a0d0e21e
LW		 3104}
3105
3106PP(pp_ftrowned)
3107{
fbb0b3b3 3108 I32 result;
2a3ff820 3109 dSP;
fbb0b3b3
RGS		 3110 STACKED_FTEST_CHECK;
3111 result = my_stat();
3112 SPAGAIN;
a0d0e21e
LW		 3113 if (result < 0)
3114 RETPUSHUNDEF;
146174a9
CB		 3115 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3116 PL_euid : PL_uid) )
a0d0e21e
LW		 3117 RETPUSHYES;
3118 RETPUSHNO;
3119}
3120
3121PP(pp_ftzero)
3122{
fbb0b3b3 3123 I32 result;
2a3ff820 3124 dSP;
fbb0b3b3
RGS		 3125 STACKED_FTEST_CHECK;
3126 result = my_stat();
3127 SPAGAIN;
a0d0e21e
LW		 3128 if (result < 0)
3129 RETPUSHUNDEF;
146174a9 3130 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3131 RETPUSHYES;
3132 RETPUSHNO;
3133}
3134
3135PP(pp_ftsize)
3136{
fbb0b3b3 3137 I32 result;
2a3ff820 3138 dSP; dTARGET;
fbb0b3b3
RGS		 3139 STACKED_FTEST_CHECK;
3140 result = my_stat();
3141 SPAGAIN;
a0d0e21e
LW		 3142 if (result < 0)
3143 RETPUSHUNDEF;
146174a9
CB		 3144#if Off_t_size > IVSIZE
3145 PUSHn(PL_statcache.st_size);
3146#else
3280af22 3147 PUSHi(PL_statcache.st_size);
146174a9 3148#endif
a0d0e21e
LW		 3149 RETURN;
3150}
3151
3152PP(pp_ftmtime)
3153{
fbb0b3b3 3154 I32 result;
2a3ff820 3155 dSP; dTARGET;
fbb0b3b3
RGS		 3156 STACKED_FTEST_CHECK;
3157 result = my_stat();
3158 SPAGAIN;
a0d0e21e
LW		 3159 if (result < 0)
3160 RETPUSHUNDEF;
a80d47c2 3161 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3162 RETURN;
3163}
3164
3165PP(pp_ftatime)
3166{
fbb0b3b3 3167 I32 result;
2a3ff820 3168 dSP; dTARGET;
fbb0b3b3
RGS		 3169 STACKED_FTEST_CHECK;
3170 result = my_stat();
3171 SPAGAIN;
a0d0e21e
LW		 3172 if (result < 0)
3173 RETPUSHUNDEF;
a80d47c2 3174 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3175 RETURN;
3176}
3177
3178PP(pp_ftctime)
3179{
fbb0b3b3 3180 I32 result;
2a3ff820 3181 dSP; dTARGET;
fbb0b3b3
RGS		 3182 STACKED_FTEST_CHECK;
3183 result = my_stat();
3184 SPAGAIN;
a0d0e21e
LW		 3185 if (result < 0)
3186 RETPUSHUNDEF;
a80d47c2 3187 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3188 RETURN;
3189}
3190
3191PP(pp_ftsock)
3192{
fbb0b3b3 3193 I32 result;
2a3ff820 3194 dSP;
fbb0b3b3
RGS		 3195 STACKED_FTEST_CHECK;
3196 result = my_stat();
3197 SPAGAIN;
a0d0e21e
LW		 3198 if (result < 0)
3199 RETPUSHUNDEF;
3280af22 3200 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3201 RETPUSHYES;
3202 RETPUSHNO;
3203}
3204
3205PP(pp_ftchr)
3206{
fbb0b3b3 3207 I32 result;
2a3ff820 3208 dSP;
fbb0b3b3
RGS		 3209 STACKED_FTEST_CHECK;
3210 result = my_stat();
3211 SPAGAIN;
a0d0e21e
LW		 3212 if (result < 0)
3213 RETPUSHUNDEF;
3280af22 3214 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3215 RETPUSHYES;
3216 RETPUSHNO;
3217}
3218
3219PP(pp_ftblk)
3220{
fbb0b3b3 3221 I32 result;
2a3ff820 3222 dSP;
fbb0b3b3
RGS		 3223 STACKED_FTEST_CHECK;
3224 result = my_stat();
3225 SPAGAIN;
a0d0e21e
LW		 3226 if (result < 0)
3227 RETPUSHUNDEF;
3280af22 3228 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3229 RETPUSHYES;
3230 RETPUSHNO;
3231}
3232
3233PP(pp_ftfile)
3234{
fbb0b3b3 3235 I32 result;
2a3ff820 3236 dSP;
fbb0b3b3
RGS		 3237 STACKED_FTEST_CHECK;
3238 result = my_stat();
3239 SPAGAIN;
a0d0e21e
LW		 3240 if (result < 0)
3241 RETPUSHUNDEF;
3280af22 3242 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3243 RETPUSHYES;
3244 RETPUSHNO;
3245}
3246
3247PP(pp_ftdir)
3248{
fbb0b3b3 3249 I32 result;
2a3ff820 3250 dSP;
fbb0b3b3
RGS		 3251 STACKED_FTEST_CHECK;
3252 result = my_stat();
3253 SPAGAIN;
a0d0e21e
LW		 3254 if (result < 0)
3255 RETPUSHUNDEF;
3280af22 3256 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3257 RETPUSHYES;
3258 RETPUSHNO;
3259}
3260
3261PP(pp_ftpipe)
3262{
fbb0b3b3 3263 I32 result;
2a3ff820 3264 dSP;
fbb0b3b3
RGS		 3265 STACKED_FTEST_CHECK;
3266 result = my_stat();
3267 SPAGAIN;
a0d0e21e
LW		 3268 if (result < 0)
3269 RETPUSHUNDEF;
3280af22 3270 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3271 RETPUSHYES;
3272 RETPUSHNO;
3273}
3274
3275PP(pp_ftlink)
3276{
9cad6237 3277 I32 result = my_lstat();
2a3ff820 3278 dSP;
a0d0e21e
LW		 3279 if (result < 0)
3280 RETPUSHUNDEF;
3280af22 3281 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3282 RETPUSHYES;
3283 RETPUSHNO;
3284}
3285
3286PP(pp_ftsuid)
3287{
39644a26 3288 dSP;
a0d0e21e 3289#ifdef S_ISUID
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_ISUID)
a0d0e21e
LW		 3297 RETPUSHYES;
3298#endif
3299 RETPUSHNO;
3300}
3301
3302PP(pp_ftsgid)
3303{
39644a26 3304 dSP;
a0d0e21e 3305#ifdef S_ISGID
fbb0b3b3
RGS		 3306 I32 result;
3307 STACKED_FTEST_CHECK;
3308 result = my_stat();
a0d0e21e
LW		 3309 SPAGAIN;
3310 if (result < 0)
3311 RETPUSHUNDEF;
3280af22 3312 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3313 RETPUSHYES;
3314#endif
3315 RETPUSHNO;
3316}
3317
3318PP(pp_ftsvtx)
3319{
39644a26 3320 dSP;
a0d0e21e 3321#ifdef S_ISVTX
fbb0b3b3
RGS		 3322 I32 result;
3323 STACKED_FTEST_CHECK;
3324 result = my_stat();
a0d0e21e
LW		 3325 SPAGAIN;
3326 if (result < 0)
3327 RETPUSHUNDEF;
3280af22 3328 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3329 RETPUSHYES;
3330#endif
3331 RETPUSHNO;
3332}
3333
3334PP(pp_fttty)
3335{
39644a26 3336 dSP;
a0d0e21e
LW		 3337 int fd;
3338 GV *gv;
7a5fd60d 3339 SV *tmpsv = Nullsv;
fb73857a 3340
fbb0b3b3
RGS		 3341 STACKED_FTEST_CHECK;
3342
533c011a 3343 if (PL_op->op_flags & OPf_REF)
146174a9 3344 gv = cGVOP_gv;
fb73857a 3345 else if (isGV(TOPs))
3346 gv = (GV*)POPs;
3347 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3348 gv = (GV*)SvRV(POPs);
a0d0e21e 3349 else
7a5fd60d 3350 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3351
a0d0e21e 3352 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3353 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3354 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3355 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3356 if (isDIGIT(*tmps))
3357 fd = atoi(tmps);
3358 else
3359 RETPUSHUNDEF;
3360 }
a0d0e21e
LW		 3361 else
3362 RETPUSHUNDEF;
6ad3d225 3363 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3364 RETPUSHYES;
3365 RETPUSHNO;
3366}
3367
16d20bd9
AD		 3368#if defined(atarist) /* this will work with atariST. Configure will
3369 make guesses for other systems. */
3370# define FILE_base(f) ((f)->_base)
3371# define FILE_ptr(f) ((f)->_ptr)
3372# define FILE_cnt(f) ((f)->_cnt)
3373# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3374#endif
3375
3376PP(pp_fttext)
3377{
39644a26 3378 dSP;
a0d0e21e
LW		 3379 I32 i;
3380 I32 len;
3381 I32 odd = 0;
3382 STDCHAR tbuf[512];
3383 register STDCHAR *s;
3384 register IO *io;
5f05dabc 3385 register SV *sv;
3386 GV *gv;
146174a9 3387 PerlIO *fp;
a0d0e21e 3388
fbb0b3b3
RGS		 3389 STACKED_FTEST_CHECK;
3390
533c011a 3391 if (PL_op->op_flags & OPf_REF)
146174a9 3392 gv = cGVOP_gv;
5f05dabc 3393 else if (isGV(TOPs))
3394 gv = (GV*)POPs;
3395 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3396 gv = (GV*)SvRV(POPs);
3397 else
3398 gv = Nullgv;
3399
3400 if (gv) {
a0d0e21e 3401 EXTEND(SP, 1);
3280af22
NIS		 3402 if (gv == PL_defgv) {
3403 if (PL_statgv)
3404 io = GvIO(PL_statgv);
a0d0e21e 3405 else {
3280af22 3406 sv = PL_statname;
a0d0e21e
LW		 3407 goto really_filename;
3408 }
3409 }
3410 else {
3280af22
NIS		 3411 PL_statgv = gv;
3412 PL_laststatval = -1;
c69006e4 3413 sv_setpvn(PL_statname, "", 0);
3280af22 3414 io = GvIO(PL_statgv);
a0d0e21e
LW		 3415 }
3416 if (io && IoIFP(io)) {
5f05dabc 3417 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3418 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3419 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3420 if (PL_laststatval < 0)
5f05dabc 3421 RETPUSHUNDEF;
9cbac4c7 3422 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3423 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3424 RETPUSHNO;
3425 else
3426 RETPUSHYES;
9cbac4c7 3427 }
a20bf0c3 3428 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3429 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3430 if (i != EOF)
760ac839 3431 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3432 }
a20bf0c3 3433 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3434 RETPUSHYES;
a20bf0c3
JH		 3435 len = PerlIO_get_bufsiz(IoIFP(io));
3436 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3437 /* sfio can have large buffers - limit to 512 */
3438 if (len > 512)
3439 len = 512;
a0d0e21e
LW		 3440 }
3441 else {
2dd78f96 3442 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3443 gv = cGVOP_gv;
2dd78f96 3444 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3445 }
93189314 3446 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3447 RETPUSHUNDEF;
3448 }
3449 }
3450 else {
3451 sv = POPs;
5f05dabc 3452 really_filename:
3280af22 3453 PL_statgv = Nullgv;
5c9aa243 3454 PL_laststype = OP_STAT;
d5263905 3455 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3456 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3457 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3458 '\n'))
9014280d 3459 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3460 RETPUSHUNDEF;
3461 }
146174a9
CB		 3462 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3463 if (PL_laststatval < 0) {
3464 (void)PerlIO_close(fp);
5f05dabc 3465 RETPUSHUNDEF;
146174a9 3466 }
60382766 3467 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3468 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3469 (void)PerlIO_close(fp);
a0d0e21e 3470 if (len <= 0) {
533c011a 3471 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3472 RETPUSHNO; /* special case NFS directories */
3473 RETPUSHYES; /* null file is anything */
3474 }
3475 s = tbuf;
3476 }
3477
3478 /* now scan s to look for textiness */
4633a7c4 3479 /* XXX ASCII dependent code */
a0d0e21e 3480
146174a9
CB		 3481#if defined(DOSISH) || defined(USEMYBINMODE)
3482 /* ignore trailing ^Z on short files */
3483 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3484 --len;
3485#endif
3486
a0d0e21e
LW		 3487 for (i = 0; i < len; i++, s++) {
3488 if (!*s) { /* null never allowed in text */
3489 odd += len;
3490 break;
3491 }
9d116dd7 3492#ifdef EBCDIC
301e8125 3493 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3494 odd++;
3495#else
146174a9
CB		 3496 else if (*s & 128) {
3497#ifdef USE_LOCALE
2de3dbcc 3498 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3499 continue;
3500#endif
3501 /* utf8 characters don't count as odd */
fd400ab9 3502 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3503 int ulen = UTF8SKIP(s);
3504 if (ulen < len - i) {
3505 int j;
3506 for (j = 1; j < ulen; j++) {
fd400ab9 3507 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3508 goto not_utf8;
3509 }
3510 --ulen; /* loop does extra increment */
3511 s += ulen;
3512 i += ulen;
3513 continue;
3514 }
3515 }
3516 not_utf8:
3517 odd++;
146174a9 3518 }
a0d0e21e
LW		 3519 else if (*s < 32 &&
3520 *s != '\n' && *s != '\r' && *s != '\b' &&
3521 *s != '\t' && *s != '\f' && *s != 27)
3522 odd++;
9d116dd7 3523#endif
a0d0e21e
LW		 3524 }
3525
533c011a 3526 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3527 RETPUSHNO;
3528 else
3529 RETPUSHYES;
3530}
3531
3532PP(pp_ftbinary)
3533{
cea2e8a9 3534 return pp_fttext();
a0d0e21e
LW		 3535}
3536
3537/* File calls. */
3538
3539PP(pp_chdir)
3540{
39644a26 3541 dSP; dTARGET;
5c144d81 3542 const char *tmps;
a0d0e21e
LW		 3543 SV **svp;
3544
35ae6b54 3545 if( MAXARG == 1 )
5c144d81 3546 tmps = POPpconstx;
35ae6b54
MS		 3547 else
3548 tmps = 0;
3549
3550 if( !tmps || !*tmps ) {
3551 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3552 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3553#ifdef VMS
35ae6b54 3554 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3555#endif
35ae6b54
MS		 3556 )
3557 {
3558 if( MAXARG == 1 )
9014280d 3559 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3560 tmps = SvPV_nolen_const(*svp);
35ae6b54 3561 }
72f496dc 3562 else {
389ec635 3563 PUSHi(0);
b7ab37f8 3564 TAINT_PROPER("chdir");
389ec635
MS		 3565 RETURN;
3566 }
8ea155d1 3567 }
8ea155d1 3568
a0d0e21e 3569 TAINT_PROPER("chdir");
6ad3d225 3570 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3571#ifdef VMS
3572 /* Clear the DEFAULT element of ENV so we'll get the new value
3573 * in the future. */
6b88bc9c 3574 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3575#endif
a0d0e21e
LW		 3576 RETURN;
3577}
3578
3579PP(pp_chown)
3580{
a0d0e21e 3581#ifdef HAS_CHOWN
76ffd3b9
IZ		 3582 dSP; dMARK; dTARGET;
3583 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3584
a0d0e21e
LW		 3585 SP = MARK;
3586 PUSHi(value);
3587 RETURN;
3588#else
0322a713 3589 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3590#endif
3591}
3592
3593PP(pp_chroot)
3594{
a0d0e21e 3595#ifdef HAS_CHROOT
76ffd3b9 3596 dSP; dTARGET;
d05c1ba0 3597 char *tmps = POPpx;
a0d0e21e
LW		 3598 TAINT_PROPER("chroot");
3599 PUSHi( chroot(tmps) >= 0 );
3600 RETURN;
3601#else
cea2e8a9 3602 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3603#endif
3604}
3605
3606PP(pp_unlink)
3607{
39644a26 3608 dSP; dMARK; dTARGET;
a0d0e21e 3609 I32 value;
533c011a 3610 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3611 SP = MARK;
3612 PUSHi(value);
3613 RETURN;
3614}
3615
3616PP(pp_chmod)
3617{
39644a26 3618 dSP; dMARK; dTARGET;
a0d0e21e 3619 I32 value;
533c011a 3620 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3621 SP = MARK;
3622 PUSHi(value);
3623 RETURN;
3624}
3625
3626PP(pp_utime)
3627{
39644a26 3628 dSP; dMARK; dTARGET;
a0d0e21e 3629 I32 value;
533c011a 3630 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3631 SP = MARK;
3632 PUSHi(value);
3633 RETURN;
3634}
3635
3636PP(pp_rename)
3637{
39644a26 3638 dSP; dTARGET;
a0d0e21e 3639 int anum;
e62f0680
NC		 3640 const char *tmps2 = POPpconstx;
3641 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3642 TAINT_PROPER("rename");
3643#ifdef HAS_RENAME
baed7233 3644 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3645#else
6b88bc9c 3646 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3647 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3648 anum = 1;
3649 else {
3654eb6c 3650 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3651 (void)UNLINK(tmps2);
3652 if (!(anum = link(tmps, tmps2)))
3653 anum = UNLINK(tmps);
3654 }
a0d0e21e
LW		 3655 }
3656#endif
3657 SETi( anum >= 0 );
3658 RETURN;
3659}
3660
3661PP(pp_link)
3662{
a0d0e21e 3663#ifdef HAS_LINK
370f6000 3664 dSP; dTARGET;
e62f0680
NC		 3665 const char *tmps2 = POPpconstx;
3666 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3667 TAINT_PROPER("link");
146174a9 3668 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3669 RETURN;
a0d0e21e 3670#else
0322a713 3671 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3672#endif
a0d0e21e
LW		 3673}
3674
3675PP(pp_symlink)
3676{
a0d0e21e 3677#ifdef HAS_SYMLINK
9cad6237 3678 dSP; dTARGET;
83003860
NC		 3679 const char *tmps2 = POPpconstx;
3680 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3681 TAINT_PROPER("symlink");
3682 SETi( symlink(tmps, tmps2) >= 0 );
3683 RETURN;
3684#else
cea2e8a9 3685 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3686#endif
3687}
3688
3689PP(pp_readlink)
3690{
76ffd3b9 3691 dSP;
a0d0e21e 3692#ifdef HAS_SYMLINK
76ffd3b9 3693 dTARGET;
10516c54 3694 const char *tmps;
46fc3d4c 3695 char buf[MAXPATHLEN];
a0d0e21e 3696 int len;
46fc3d4c 3697
fb73857a 3698#ifndef INCOMPLETE_TAINTS
3699 TAINT;
3700#endif
10516c54 3701 tmps = POPpconstx;
97dcea33 3702 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3703 EXTEND(SP, 1);
3704 if (len < 0)
3705 RETPUSHUNDEF;
3706 PUSHp(buf, len);
3707 RETURN;
3708#else
3709 EXTEND(SP, 1);
3710 RETSETUNDEF; /* just pretend it's a normal file */
3711#endif
3712}
3713
3714#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3715STATIC int
b464bac0 3716S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3717{
b464bac0 3718 char * const save_filename = filename;
1e422769 3719 char *cmdline;
3720 char *s;
760ac839 3721 PerlIO *myfp;
1e422769 3722 int anum = 1;
a0d0e21e 3723
1e422769 3724 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3725 strcpy(cmdline, cmd);
3726 strcat(cmdline, " ");
3727 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3728 *s++ = '\\';
3729 *s++ = *filename++;
3730 }
3731 strcpy(s, " 2>&1");
6ad3d225 3732 myfp = PerlProc_popen(cmdline, "r");
1e422769 3733 Safefree(cmdline);
3734
a0d0e21e 3735 if (myfp) {
1e422769 3736 SV *tmpsv = sv_newmortal();
6b88bc9c 3737 /* Need to save/restore 'PL_rs' ?? */
760ac839 3738 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3739 (void)PerlProc_pclose(myfp);
a0d0e21e 3740 if (s != Nullch) {
1e422769 3741 int e;
3742 for (e = 1;
a0d0e21e 3743#ifdef HAS_SYS_ERRLIST
1e422769 3744 e <= sys_nerr
3745#endif
3746 ; e++)
3747 {
3748 /* you don't see this */
3749 char *errmsg =
3750#ifdef HAS_SYS_ERRLIST
3751 sys_errlist[e]
a0d0e21e 3752#else
1e422769 3753 strerror(e)
a0d0e21e 3754#endif
1e422769 3755 ;
3756 if (!errmsg)
3757 break;
3758 if (instr(s, errmsg)) {
3759 SETERRNO(e,0);
3760 return 0;
3761 }
a0d0e21e 3762 }
748a9306 3763 SETERRNO(0,0);
a0d0e21e
LW		 3764#ifndef EACCES
3765#define EACCES EPERM
3766#endif
1e422769 3767 if (instr(s, "cannot make"))
93189314 3768 SETERRNO(EEXIST,RMS_FEX);
1e422769 3769 else if (instr(s, "existing file"))
93189314 3770 SETERRNO(EEXIST,RMS_FEX);
1e422769 3771 else if (instr(s, "ile exists"))
93189314 3772 SETERRNO(EEXIST,RMS_FEX);
1e422769 3773 else if (instr(s, "non-exist"))
93189314 3774 SETERRNO(ENOENT,RMS_FNF);
1e422769 3775 else if (instr(s, "does not exist"))
93189314 3776 SETERRNO(ENOENT,RMS_FNF);
1e422769 3777 else if (instr(s, "not empty"))
93189314 3778 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3779 else if (instr(s, "cannot access"))
93189314 3780 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3781 else
93189314 3782 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3783 return 0;
3784 }
3785 else { /* some mkdirs return no failure indication */
6b88bc9c 3786 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3787 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3788 anum = !anum;
3789 if (anum)
748a9306 3790 SETERRNO(0,0);
a0d0e21e 3791 else
93189314 3792 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3793 }
3794 return anum;
3795 }
3796 else
3797 return 0;
3798}
3799#endif
3800
0c54f65b
RGS		 3801/* This macro removes trailing slashes from a directory name.
3802 * Different operating and file systems take differently to
3803 * trailing slashes. According to POSIX 1003.1 1996 Edition
3804 * any number of trailing slashes should be allowed.
3805 * Thusly we snip them away so that even non-conforming
3806 * systems are happy.
3807 * We should probably do this "filtering" for all
3808 * the functions that expect (potentially) directory names:
3809 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3810 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3811
5c144d81 3812#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3813 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3814 do { \
3815 (len)--; \
3816 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3817 (tmps) = savepvn((tmps), (len)); \
3818 (copy) = TRUE; \
3819 }
3820
a0d0e21e
LW		 3821PP(pp_mkdir)
3822{
39644a26 3823 dSP; dTARGET;
5a211162 3824 int mode;
a0d0e21e
LW		 3825#ifndef HAS_MKDIR
3826 int oldumask;
3827#endif
df25ddba 3828 STRLEN len;
5c144d81 3829 const char *tmps;
df25ddba 3830 bool copy = FALSE;
5a211162
GS		 3831
3832 if (MAXARG > 1)
3833 mode = POPi;
3834 else
3835 mode = 0777;
3836
0c54f65b 3837 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3838
3839 TAINT_PROPER("mkdir");
3840#ifdef HAS_MKDIR
6ad3d225 3841 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3842#else
3843 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3844 oldumask = PerlLIO_umask(0);
3845 PerlLIO_umask(oldumask);
3846 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3847#endif
df25ddba
JH		 3848 if (copy)
3849 Safefree(tmps);
a0d0e21e
LW		 3850 RETURN;
3851}
3852
3853PP(pp_rmdir)
3854{
39644a26 3855 dSP; dTARGET;
0c54f65b 3856 STRLEN len;
5c144d81 3857 const char *tmps;
0c54f65b 3858 bool copy = FALSE;
a0d0e21e 3859
0c54f65b 3860 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3861 TAINT_PROPER("rmdir");
3862#ifdef HAS_RMDIR
0c54f65b 3863 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3864#else
0c54f65b 3865 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3866#endif
0c54f65b
RGS		 3867 if (copy)
3868 Safefree(tmps);
a0d0e21e
LW		 3869 RETURN;
3870}
3871
3872/* Directory calls. */
3873
3874PP(pp_open_dir)
3875{
a0d0e21e 3876#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3877 dSP;
10516c54 3878 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3879 GV *gv = (GV*)POPs;
3880 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3881
3882 if (!io)
3883 goto nope;
3884
3885 if (IoDIRP(io))
6ad3d225
GS		 3886 PerlDir_close(IoDIRP(io));
3887 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3888 goto nope;
3889
3890 RETPUSHYES;
3891nope:
3892 if (!errno)
93189314 3893 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3894 RETPUSHUNDEF;
3895#else
cea2e8a9 3896 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3897#endif
3898}
3899
3900PP(pp_readdir)
3901{
34b7f128
AMS		 3902#if !defined(Direntry_t) || !defined(HAS_READDIR)
3903 DIE(aTHX_ PL_no_dir_func, "readdir");
3904#else
fd8cd3a3 3905#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3906 Direntry_t *readdir (DIR *);
a0d0e21e 3907#endif
34b7f128
AMS		 3908 dSP;
3909
3910 SV *sv;
f54cb97a 3911 const I32 gimme = GIMME;
34b7f128 3912 GV *gv = (GV *)POPs;
a0d0e21e 3913 register Direntry_t *dp;
a0d0e21e
LW		 3914 register IO *io = GvIOn(gv);
3915
3916 if (!io || !IoDIRP(io))
3917 goto nope;
3918
34b7f128
AMS		 3919 do {
3920 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3921 if (!dp)
3922 break;
a0d0e21e 3923#ifdef DIRNAMLEN
34b7f128 3924 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3925#else
34b7f128 3926 sv = newSVpv(dp->d_name, 0);
fb73857a 3927#endif
3928#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3929 if (!(IoFLAGS(io) & IOf_UNTAINT))
3930 SvTAINTED_on(sv);
a0d0e21e 3931#endif
34b7f128 3932 XPUSHs(sv_2mortal(sv));
a0d0e21e 3933 }
34b7f128
AMS		 3934 while (gimme == G_ARRAY);
3935
3936 if (!dp && gimme != G_ARRAY)
3937 goto nope;
3938
a0d0e21e
LW		 3939 RETURN;
3940
3941nope:
3942 if (!errno)
93189314 3943 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3944 if (GIMME == G_ARRAY)
3945 RETURN;
3946 else
3947 RETPUSHUNDEF;
a0d0e21e
LW		 3948#endif
3949}
3950
3951PP(pp_telldir)
3952{
a0d0e21e 3953#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3954 dVAR; dSP; dTARGET;
968dcd91
JH		 3955 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3956 /* XXX netbsd still seemed to.
3957 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3958 --JHI 1999-Feb-02 */
3959# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3960 long telldir (DIR *);
dfe9444c 3961# endif
a0d0e21e
LW		 3962 GV *gv = (GV*)POPs;
3963 register IO *io = GvIOn(gv);
3964
3965 if (!io || !IoDIRP(io))
3966 goto nope;
3967
6ad3d225 3968 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3969 RETURN;
3970nope:
3971 if (!errno)
93189314 3972 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3973 RETPUSHUNDEF;
3974#else
cea2e8a9 3975 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3976#endif
3977}
3978
3979PP(pp_seekdir)
3980{
a0d0e21e 3981#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3982 dSP;
a0d0e21e
LW		 3983 long along = POPl;
3984 GV *gv = (GV*)POPs;
3985 register IO *io = GvIOn(gv);
3986
3987 if (!io || !IoDIRP(io))
3988 goto nope;
3989
6ad3d225 3990 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3991
3992 RETPUSHYES;
3993nope:
3994 if (!errno)
93189314 3995 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3996 RETPUSHUNDEF;
3997#else
cea2e8a9 3998 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3999#endif
4000}
4001
4002PP(pp_rewinddir)
4003{
a0d0e21e 4004#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4005 dSP;
a0d0e21e
LW		 4006 GV *gv = (GV*)POPs;
4007 register IO *io = GvIOn(gv);
4008
4009 if (!io || !IoDIRP(io))
4010 goto nope;
4011
6ad3d225 4012 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4013 RETPUSHYES;
4014nope:
4015 if (!errno)
93189314 4016 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4017 RETPUSHUNDEF;
4018#else
cea2e8a9 4019 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4020#endif
4021}
4022
4023PP(pp_closedir)
4024{
a0d0e21e 4025#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4026 dSP;
a0d0e21e
LW		 4027 GV *gv = (GV*)POPs;
4028 register IO *io = GvIOn(gv);
4029
4030 if (!io || !IoDIRP(io))
4031 goto nope;
4032
4033#ifdef VOID_CLOSEDIR
6ad3d225 4034 PerlDir_close(IoDIRP(io));
a0d0e21e 4035#else
6ad3d225 4036 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4037 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4038 goto nope;
748a9306 4039 }
a0d0e21e
LW		 4040#endif
4041 IoDIRP(io) = 0;
4042
4043 RETPUSHYES;
4044nope:
4045 if (!errno)
93189314 4046 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4047 RETPUSHUNDEF;
4048#else
cea2e8a9 4049 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4050#endif
4051}
4052
4053/* Process control. */
4054
4055PP(pp_fork)
4056{
44a8e56a 4057#ifdef HAS_FORK
39644a26 4058 dSP; dTARGET;
761237fe 4059 Pid_t childpid;
a0d0e21e
LW		 4060 GV *tmpgv;
4061
4062 EXTEND(SP, 1);
45bc9206 4063 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4064 childpid = PerlProc_fork();
a0d0e21e
LW		 4065 if (childpid < 0)
4066 RETSETUNDEF;
4067 if (!childpid) {
306196c3
MS		 4068 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4069 SvREADONLY_off(GvSV(tmpgv));
146174a9 4070 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4071 SvREADONLY_on(GvSV(tmpgv));
4072 }
4d76a344
RGS		 4073#ifdef THREADS_HAVE_PIDS
4074 PL_ppid = (IV)getppid();
4075#endif
3280af22 4076 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4077 }
4078 PUSHi(childpid);
4079 RETURN;
4080#else
146174a9 4081# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4082 dSP; dTARGET;
146174a9
CB		 4083 Pid_t childpid;
4084
4085 EXTEND(SP, 1);
4086 PERL_FLUSHALL_FOR_CHILD;
4087 childpid = PerlProc_fork();
60fa28ff
GS		 4088 if (childpid == -1)
4089 RETSETUNDEF;
146174a9
CB		 4090 PUSHi(childpid);
4091 RETURN;
4092# else
0322a713 4093 DIE(aTHX_ PL_no_func, "fork");
146174a9 4094# endif
a0d0e21e
LW		 4095#endif
4096}
4097
4098PP(pp_wait)
4099{
301e8125 4100#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4101 dSP; dTARGET;
761237fe 4102 Pid_t childpid;
a0d0e21e 4103 int argflags;
a0d0e21e 4104
4ffa73a3
JH		 4105 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4106 childpid = wait4pid(-1, &argflags, 0);
4107 else {
4108 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4109 errno == EINTR) {
4110 PERL_ASYNC_CHECK();
4111 }
0a0ada86 4112 }
68a29c53
GS		 4113# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4114 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4115 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4116# else
f86702cc 4117 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4118# endif
44a8e56a 4119 XPUSHi(childpid);
a0d0e21e
LW		 4120 RETURN;
4121#else
0322a713 4122 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4123#endif
4124}
4125
4126PP(pp_waitpid)
4127{
301e8125 4128#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4129 dSP; dTARGET;
2ec0bfb3
SG		 4130 Pid_t pid;
4131 Pid_t result;
a0d0e21e
LW		 4132 int optype;
4133 int argflags;
a0d0e21e 4134
a0d0e21e 4135 optype = POPi;
2ec0bfb3 4136 pid = TOPi;
4ffa73a3 4137 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4138 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4139 else {
2ec0bfb3 4140 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4141 errno == EINTR) {
4142 PERL_ASYNC_CHECK();
4143 }
0a0ada86 4144 }
68a29c53
GS		 4145# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4146 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4147 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4148# else
2ec0bfb3 4149 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4150# endif
2ec0bfb3 4151 SETi(result);
a0d0e21e
LW		 4152 RETURN;
4153#else
0322a713 4154 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4155#endif
4156}
4157
4158PP(pp_system)
4159{
39644a26 4160 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4161 I32 value;
76ffd3b9 4162 int result;
a0d0e21e 4163
bbd7eb8a
RD		 4164 if (PL_tainting) {
4165 TAINT_ENV();
4166 while (++MARK <= SP) {
10516c54 4167 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4168 if (PL_tainted)
bbd7eb8a
RD		 4169 break;
4170 }
4171 MARK = ORIGMARK;
5a445156 4172 TAINT_PROPER("system");
a0d0e21e 4173 }
45bc9206 4174 PERL_FLUSHALL_FOR_CHILD;
273b0206 4175#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4176 {
eb160463
GS		 4177 Pid_t childpid;
4178 int pp[2];
27da23d5 4179 I32 did_pipes = 0;
eb160463
GS		 4180
4181 if (PerlProc_pipe(pp) >= 0)
4182 did_pipes = 1;
4183 while ((childpid = PerlProc_fork()) == -1) {
4184 if (errno != EAGAIN) {
4185 value = -1;
4186 SP = ORIGMARK;
4187 PUSHi(value);
4188 if (did_pipes) {
4189 PerlLIO_close(pp[0]);
4190 PerlLIO_close(pp[1]);
4191 }
4192 RETURN;
4193 }
4194 sleep(5);
4195 }
4196 if (childpid > 0) {
4197 Sigsave_t ihand,qhand; /* place to save signals during system() */
4198 int status;
4199
4200 if (did_pipes)
4201 PerlLIO_close(pp[1]);
64ca3a65 4202#ifndef PERL_MICRO
eb160463
GS		 4203 rsignal_save(SIGINT, SIG_IGN, &ihand);
4204 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4205#endif
eb160463
GS		 4206 do {
4207 result = wait4pid(childpid, &status, 0);
4208 } while (result == -1 && errno == EINTR);
64ca3a65 4209#ifndef PERL_MICRO
eb160463
GS		 4210 (void)rsignal_restore(SIGINT, &ihand);
4211 (void)rsignal_restore(SIGQUIT, &qhand);
4212#endif
4213 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4214 do_execfree(); /* free any memory child malloced on fork */
4215 SP = ORIGMARK;
4216 if (did_pipes) {
4217 int errkid;
4218 int n = 0, n1;
4219
4220 while (n < sizeof(int)) {
4221 n1 = PerlLIO_read(pp[0],
4222 (void*)(((char*)&errkid)+n),
4223 (sizeof(int)) - n);
4224 if (n1 <= 0)
4225 break;
4226 n += n1;
4227 }
4228 PerlLIO_close(pp[0]);
4229 if (n) { /* Error */
4230 if (n != sizeof(int))
4231 DIE(aTHX_ "panic: kid popen errno read");
4232 errno = errkid; /* Propagate errno from kid */
4233 STATUS_CURRENT = -1;
4234 }
4235 }
4236 PUSHi(STATUS_CURRENT);
4237 RETURN;
4238 }
4239 if (did_pipes) {
4240 PerlLIO_close(pp[0]);
d5a9bfb0 4241#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4242 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4243#endif
eb160463 4244 }
e0a1f643
JH		 4245 if (PL_op->op_flags & OPf_STACKED) {
4246 SV *really = *++MARK;
4247 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4248 }
4249 else if (SP - MARK != 1)
4250 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4251 else {
8c074e2a 4252 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4253 }
4254 PerlProc__exit(-1);
d5a9bfb0 4255 }
c3293030 4256#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4257 PL_statusvalue = 0;
4258 result = 0;
911d147d 4259 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4260 SV *really = *++MARK;
27da23d5 4261# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4262 value = (I32)do_aspawn(really, MARK, SP);
4263# else
c5be433b 4264 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4265# endif
a0d0e21e 4266 }
54725af6 4267 else if (SP - MARK != 1) {
27da23d5 4268# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4269 value = (I32)do_aspawn(Nullsv, MARK, SP);
4270# else
c5be433b 4271 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4272# endif
4273 }
a0d0e21e 4274 else {
8c074e2a 4275 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4276 }
922b1888
GS		 4277 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4278 result = 1;
f86702cc 4279 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4280 do_execfree();
4281 SP = ORIGMARK;
922b1888 4282 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4283#endif /* !FORK or VMS */
4284 RETURN;
4285}
4286
4287PP(pp_exec)
4288{
39644a26 4289 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4290 I32 value;
4291
bbd7eb8a
RD		 4292 if (PL_tainting) {
4293 TAINT_ENV();
4294 while (++MARK <= SP) {
10516c54 4295 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4296 if (PL_tainted)
bbd7eb8a
RD		 4297 break;
4298 }
4299 MARK = ORIGMARK;
5a445156 4300 TAINT_PROPER("exec");
bbd7eb8a 4301 }
45bc9206 4302 PERL_FLUSHALL_FOR_CHILD;
533c011a 4303 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4304 SV *really = *++MARK;
4305 value = (I32)do_aexec(really, MARK, SP);
4306 }
4307 else if (SP - MARK != 1)
4308#ifdef VMS
4309 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4310#else
092bebab
JH		 4311# ifdef __OPEN_VM
4312 {
c5be433b 4313 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4314 value = 0;
4315 }
4316# else
a0d0e21e 4317 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4318# endif
a0d0e21e
LW		 4319#endif
4320 else {
a0d0e21e 4321#ifdef VMS
8c074e2a 4322 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4323#else
092bebab 4324# ifdef __OPEN_VM
8c074e2a 4325 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4326 value = 0;
4327# else
8c074e2a 4328 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4329# endif
a0d0e21e
LW		 4330#endif
4331 }
146174a9 4332
a0d0e21e
LW		 4333 SP = ORIGMARK;
4334 PUSHi(value);
4335 RETURN;
4336}
4337
4338PP(pp_kill)
4339{
9cad6237 4340#ifdef HAS_KILL
39644a26 4341 dSP; dMARK; dTARGET;
a0d0e21e 4342 I32 value;
533c011a 4343 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4344 SP = MARK;
4345 PUSHi(value);
4346 RETURN;
4347#else
0322a713 4348 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4349#endif
4350}
4351
4352PP(pp_getppid)
4353{
4354#ifdef HAS_GETPPID
39644a26 4355 dSP; dTARGET;
4d76a344 4356# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4357 if (PL_ppid != 1 && getppid() == 1)
4358 /* maybe the parent process has died. Refresh ppid cache */
4359 PL_ppid = 1;
4d76a344
RGS		 4360 XPUSHi( PL_ppid );
4361# else
a0d0e21e 4362 XPUSHi( getppid() );
4d76a344 4363# endif
a0d0e21e
LW		 4364 RETURN;
4365#else
cea2e8a9 4366 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4367#endif
4368}
4369
4370PP(pp_getpgrp)
4371{
4372#ifdef HAS_GETPGRP
39644a26 4373 dSP; dTARGET;
d8a83dd3 4374 Pid_t pid;
9853a804 4375 Pid_t pgrp;
a0d0e21e
LW		 4376
4377 if (MAXARG < 1)
4378 pid = 0;
4379 else
4380 pid = SvIVx(POPs);
c3293030 4381#ifdef BSD_GETPGRP
9853a804 4382 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4383#else
146174a9 4384 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4385 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4386 pgrp = getpgrp();
a0d0e21e 4387#endif
9853a804 4388 XPUSHi(pgrp);
a0d0e21e
LW		 4389 RETURN;
4390#else
cea2e8a9 4391 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4392#endif
4393}
4394
4395PP(pp_setpgrp)
4396{
4397#ifdef HAS_SETPGRP
39644a26 4398 dSP; dTARGET;
d8a83dd3
JH		 4399 Pid_t pgrp;
4400 Pid_t pid;
a0d0e21e
LW		 4401 if (MAXARG < 2) {
4402 pgrp = 0;
4403 pid = 0;
4404 }
4405 else {
4406 pgrp = POPi;
4407 pid = TOPi;
4408 }
4409
4410 TAINT_PROPER("setpgrp");
c3293030
IZ		 4411#ifdef BSD_SETPGRP
4412 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4413#else
146174a9
CB		 4414 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4415 || (pid != 0 && pid != PerlProc_getpid()))
4416 {
4417 DIE(aTHX_ "setpgrp can't take arguments");
4418 }
a0d0e21e
LW		 4419 SETi( setpgrp() >= 0 );
4420#endif /* USE_BSDPGRP */
4421 RETURN;
4422#else
cea2e8a9 4423 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4424#endif
4425}
4426
4427PP(pp_getpriority)
4428{
a0d0e21e 4429#ifdef HAS_GETPRIORITY
9cad6237 4430 dSP; dTARGET;
d05c1ba0
JH		 4431 int who = POPi;
4432 int which = TOPi;
a0d0e21e
LW		 4433 SETi( getpriority(which, who) );
4434 RETURN;
4435#else
cea2e8a9 4436 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4437#endif
4438}
4439
4440PP(pp_setpriority)
4441{
a0d0e21e 4442#ifdef HAS_SETPRIORITY
9cad6237 4443 dSP; dTARGET;
d05c1ba0
JH		 4444 int niceval = POPi;
4445 int who = POPi;
4446 int which = TOPi;
a0d0e21e
LW		 4447 TAINT_PROPER("setpriority");
4448 SETi( setpriority(which, who, niceval) >= 0 );
4449 RETURN;
4450#else
cea2e8a9 4451 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4452#endif
4453}
4454
4455/* Time calls. */
4456
4457PP(pp_time)
4458{
39644a26 4459 dSP; dTARGET;
cbdc8872 4460#ifdef BIG_TIME
4461 XPUSHn( time(Null(Time_t*)) );
4462#else
a0d0e21e 4463 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4464#endif
a0d0e21e
LW		 4465 RETURN;
4466}
4467
a0d0e21e
LW		 4468PP(pp_tms)
4469{
9cad6237 4470#ifdef HAS_TIMES
39644a26 4471 dSP;
a0d0e21e 4472 EXTEND(SP, 4);
a0d0e21e 4473#ifndef VMS
3280af22 4474 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4475#else
6b88bc9c 4476 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4477 /* struct tms, though same data */
4478 /* is returned. */
a0d0e21e
LW		 4479#endif
4480
5311654c 4481 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4482 if (GIMME == G_ARRAY) {
5311654c
JH		 4483 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4484 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4485 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4486 }
4487 RETURN;
9cad6237 4488#else
2f42fcb0
JH		 4489# ifdef PERL_MICRO
4490 dSP;
4491 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4492 EXTEND(SP, 4);
4493 if (GIMME == G_ARRAY) {
4494 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4495 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4496 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4497 }
4498 RETURN;
4499# else
9cad6237 4500 DIE(aTHX_ "times not implemented");
2f42fcb0 4501# endif
55497cff 4502#endif /* HAS_TIMES */
a0d0e21e
LW		 4503}
4504
4505PP(pp_localtime)
4506{
cea2e8a9 4507 return pp_gmtime();
a0d0e21e
LW		 4508}
4509
a4323dee 4510#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4511static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4512{
4513 auto time_t T;
4514 auto struct tm *P;
4515
4516 /* No workarounds in the valid range */
4517 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4518 return (localtime (tp));
4519
4520 /* This edge case is to workaround the undefined behaviour, where the
4521 * TIMEZONE makes the time go beyond the defined range.
4522 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4523 * If there is a negative offset in TZ, like MET-1METDST, some broken
4524 * implementations of localtime () (like AIX 5.2) barf with bogus
4525 * return values:
4526 * 0x7fffffff gmtime 2038-01-19 03:14:07
4527 * 0x7fffffff localtime 1901-12-13 21:45:51
4528 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4529 * 0x3c19137f gmtime 2001-12-13 20:45:51
4530 * 0x3c19137f localtime 2001-12-13 21:45:51
4531 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4532 * Given that legal timezones are typically between GMT-12 and GMT+12
4533 * we turn back the clock 23 hours before calling the localtime
4534 * function, and add those to the return value. This will never cause
4535 * day wrapping problems, since the edge case is Jan *19*
4536 */
4537 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4538 P = localtime (&T);
4539 P->tm_hour += 23;
4540 if (P->tm_hour >= 24) {
4541 P->tm_hour -= 24;
4542 P->tm_mday++;
4543 }
4544 return (P);
4545} /* S_my_localtime */
4546#endif
4547
a0d0e21e
LW		 4548PP(pp_gmtime)
4549{
39644a26 4550 dSP;
a0d0e21e 4551 Time_t when;
bfed75c6 4552 const struct tm *tmbuf;
27da23d5
JH		 4553 static const char * const dayname[] =
4554 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4555 static const char * const monname[] =
4556 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4557 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4558
4559 if (MAXARG < 1)
4560 (void)time(&when);
4561 else
cbdc8872 4562#ifdef BIG_TIME
4563 when = (Time_t)SvNVx(POPs);
4564#else
a0d0e21e 4565 when = (Time_t)SvIVx(POPs);
cbdc8872 4566#endif
a0d0e21e 4567
533c011a 4568 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4569#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4570 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4571#else
a0d0e21e 4572 tmbuf = localtime(&when);
a4323dee 4573#endif
a0d0e21e
LW		 4574 else
4575 tmbuf = gmtime(&when);
4576
a0d0e21e 4577 if (GIMME != G_ARRAY) {
46fc3d4c 4578 SV *tsv;
9a5ff6d9
AB		 4579 EXTEND(SP, 1);
4580 EXTEND_MORTAL(1);
a0d0e21e
LW		 4581 if (!tmbuf)
4582 RETPUSHUNDEF;
be28567c 4583 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4584 dayname[tmbuf->tm_wday],
4585 monname[tmbuf->tm_mon],
be28567c
GS		 4586 tmbuf->tm_mday,
4587 tmbuf->tm_hour,
4588 tmbuf->tm_min,
4589 tmbuf->tm_sec,
4590 tmbuf->tm_year + 1900);
46fc3d4c 4591 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4592 }
4593 else if (tmbuf) {
9a5ff6d9
AB		 4594 EXTEND(SP, 9);
4595 EXTEND_MORTAL(9);
4596 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4597 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4598 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4599 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4600 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4601 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4602 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4603 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4604 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4605 }
4606 RETURN;
4607}
4608
4609PP(pp_alarm)
4610{
9cad6237 4611#ifdef HAS_ALARM
39644a26 4612 dSP; dTARGET;
a0d0e21e 4613 int anum;
a0d0e21e
LW		 4614 anum = POPi;
4615 anum = alarm((unsigned int)anum);
4616 EXTEND(SP, 1);
4617 if (anum < 0)
4618 RETPUSHUNDEF;
c6419e06 4619 PUSHi(anum);
a0d0e21e
LW		 4620 RETURN;
4621#else
0322a713 4622 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4623#endif
4624}
4625
4626PP(pp_sleep)
4627{
39644a26 4628 dSP; dTARGET;
a0d0e21e
LW		 4629 I32 duration;
4630 Time_t lasttime;
4631 Time_t when;
4632
4633 (void)time(&lasttime);
4634 if (MAXARG < 1)
76e3520e 4635 PerlProc_pause();
a0d0e21e
LW		 4636 else {
4637 duration = POPi;
76e3520e 4638 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4639 }
4640 (void)time(&when);
4641 XPUSHi(when - lasttime);
4642 RETURN;
4643}
4644
4645/* Shared memory. */
4646
4647PP(pp_shmget)
4648{
cea2e8a9 4649 return pp_semget();
a0d0e21e
LW		 4650}
4651
4652PP(pp_shmctl)
4653{
cea2e8a9 4654 return pp_semctl();
a0d0e21e
LW		 4655}
4656
4657PP(pp_shmread)
4658{
cea2e8a9 4659 return pp_shmwrite();
a0d0e21e
LW		 4660}
4661
4662PP(pp_shmwrite)
4663{
4664#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4665 dSP; dMARK; dTARGET;
533c011a 4666 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4667 SP = MARK;
4668 PUSHi(value);
4669 RETURN;
4670#else
cea2e8a9 4671 return pp_semget();
a0d0e21e
LW		 4672#endif
4673}
4674
4675/* Message passing. */
4676
4677PP(pp_msgget)
4678{
cea2e8a9 4679 return pp_semget();
a0d0e21e
LW		 4680}
4681
4682PP(pp_msgctl)
4683{
cea2e8a9 4684 return pp_semctl();
a0d0e21e
LW		 4685}
4686
4687PP(pp_msgsnd)
4688{
4689#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4690 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4691 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4692 SP = MARK;
4693 PUSHi(value);
4694 RETURN;
4695#else
cea2e8a9 4696 return pp_semget();
a0d0e21e
LW		 4697#endif
4698}
4699
4700PP(pp_msgrcv)
4701{
4702#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4703 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4704 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4705 SP = MARK;
4706 PUSHi(value);
4707 RETURN;
4708#else
cea2e8a9 4709 return pp_semget();
a0d0e21e
LW		 4710#endif
4711}
4712
4713/* Semaphores. */
4714
4715PP(pp_semget)
4716{
4717#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4718 dSP; dMARK; dTARGET;
533c011a 4719 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4720 SP = MARK;
4721 if (anum == -1)
4722 RETPUSHUNDEF;
4723 PUSHi(anum);
4724 RETURN;
4725#else
cea2e8a9 4726 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4727#endif
4728}
4729
4730PP(pp_semctl)
4731{
4732#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4733 dSP; dMARK; dTARGET;
533c011a 4734 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4735 SP = MARK;
4736 if (anum == -1)
4737 RETSETUNDEF;
4738 if (anum != 0) {
4739 PUSHi(anum);
4740 }
4741 else {
8903cb82 4742 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4743 }
4744 RETURN;
4745#else
cea2e8a9 4746 return pp_semget();
a0d0e21e
LW		 4747#endif
4748}
4749
4750PP(pp_semop)
4751{
4752#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4753 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4754 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4755 SP = MARK;
4756 PUSHi(value);
4757 RETURN;
4758#else
cea2e8a9 4759 return pp_semget();
a0d0e21e
LW		 4760#endif
4761}
4762
4763/* Get system info. */
4764
4765PP(pp_ghbyname)
4766{
693762b4 4767#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4768 return pp_ghostent();
a0d0e21e 4769#else
cea2e8a9 4770 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4771#endif
4772}
4773
4774PP(pp_ghbyaddr)
4775{
693762b4 4776#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4777 return pp_ghostent();
a0d0e21e 4778#else
cea2e8a9 4779 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4780#endif
4781}
4782
4783PP(pp_ghostent)
4784{
693762b4 4785#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4786 dSP;
533c011a 4787 I32 which = PL_op->op_type;
a0d0e21e
LW		 4788 register char **elem;
4789 register SV *sv;
dc45a647 4790#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4791 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4792 struct hostent *gethostbyname(Netdb_name_t);
4793 struct hostent *gethostent(void);
a0d0e21e
LW		 4794#endif
4795 struct hostent *hent;
4796 unsigned long len;
4797
4798 EXTEND(SP, 10);
edd309b7 4799 if (which == OP_GHBYNAME) {
dc45a647 4800#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4801 char* name = POPpbytex;
4802 hent = PerlSock_gethostbyname(name);
dc45a647 4803#else
cea2e8a9 4804 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4805#endif
edd309b7 4806 }
a0d0e21e 4807 else if (which == OP_GHBYADDR) {
dc45a647 4808#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4809 int addrtype = POPi;
748a9306 4810 SV *addrsv = POPs;
a0d0e21e 4811 STRLEN addrlen;
595ae481 4812 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4813
4599a1de 4814 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4815#else
cea2e8a9 4816 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4817#endif
a0d0e21e
LW		 4818 }
4819 else
4820#ifdef HAS_GETHOSTENT
6ad3d225 4821 hent = PerlSock_gethostent();
a0d0e21e 4822#else
cea2e8a9 4823 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4824#endif
4825
4826#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4827 if (!hent) {
4828#ifdef USE_REENTRANT_API
4829# ifdef USE_GETHOSTENT_ERRNO
4830 h_errno = PL_reentrant_buffer->_gethostent_errno;
4831# endif
4832#endif
4833 STATUS_NATIVE_SET(h_errno);
4834 }
a0d0e21e
LW		 4835#endif
4836
4837 if (GIMME != G_ARRAY) {
4838 PUSHs(sv = sv_newmortal());
4839 if (hent) {
4840 if (which == OP_GHBYNAME) {
fd0af264 4841 if (hent->h_addr)
4842 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4843 }
4844 else
4845 sv_setpv(sv, (char*)hent->h_name);
4846 }
4847 RETURN;
4848 }
4849
4850 if (hent) {
3280af22 4851 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4852 sv_setpv(sv, (char*)hent->h_name);
3280af22 4853 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4854 for (elem = hent->h_aliases; elem && *elem; elem++) {
4855 sv_catpv(sv, *elem);
4856 if (elem[1])
4857 sv_catpvn(sv, " ", 1);
4858 }
3280af22 4859 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4860 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4861 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4862 len = hent->h_length;
1e422769 4863 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4864#ifdef h_addr
4865 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4866 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4867 sv_setpvn(sv, *elem, len);
4868 }
4869#else
6b88bc9c 4870 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4871 if (hent->h_addr)
4872 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4873#endif /* h_addr */
4874 }
4875 RETURN;
4876#else
cea2e8a9 4877 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4878#endif
4879}
4880
4881PP(pp_gnbyname)
4882{
693762b4 4883#ifdef HAS_GETNETBYNAME
cea2e8a9 4884 return pp_gnetent();
a0d0e21e 4885#else
cea2e8a9 4886 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4887#endif
4888}
4889
4890PP(pp_gnbyaddr)
4891{
693762b4 4892#ifdef HAS_GETNETBYADDR
cea2e8a9 4893 return pp_gnetent();
a0d0e21e 4894#else
cea2e8a9 4895 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4896#endif
4897}
4898
4899PP(pp_gnetent)
4900{
693762b4 4901#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4902 dSP;
533c011a 4903 I32 which = PL_op->op_type;
a0d0e21e
LW		 4904 register char **elem;
4905 register SV *sv;
dc45a647 4906#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4907 struct netent *getnetbyaddr(Netdb_net_t, int);
4908 struct netent *getnetbyname(Netdb_name_t);
4909 struct netent *getnetent(void);
8ac85365 4910#endif
a0d0e21e
LW		 4911 struct netent *nent;
4912
edd309b7 4913 if (which == OP_GNBYNAME){
dc45a647 4914#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4915 char *name = POPpbytex;
4916 nent = PerlSock_getnetbyname(name);
dc45a647 4917#else
cea2e8a9 4918 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4919#endif
edd309b7 4920 }
a0d0e21e 4921 else if (which == OP_GNBYADDR) {
dc45a647 4922#ifdef HAS_GETNETBYADDR
a0d0e21e 4923 int addrtype = POPi;
3bb7c1b4 4924 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4925 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4926#else
cea2e8a9 4927 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4928#endif
a0d0e21e
LW		 4929 }
4930 else
dc45a647 4931#ifdef HAS_GETNETENT
76e3520e 4932 nent = PerlSock_getnetent();
dc45a647 4933#else
cea2e8a9 4934 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4935#endif
a0d0e21e 4936
10bc17b6
JH		 4937#ifdef HOST_NOT_FOUND
4938 if (!nent) {
4939#ifdef USE_REENTRANT_API
4940# ifdef USE_GETNETENT_ERRNO
4941 h_errno = PL_reentrant_buffer->_getnetent_errno;
4942# endif
4943#endif
4944 STATUS_NATIVE_SET(h_errno);
4945 }
4946#endif
4947
a0d0e21e
LW		 4948 EXTEND(SP, 4);
4949 if (GIMME != G_ARRAY) {
4950 PUSHs(sv = sv_newmortal());
4951 if (nent) {
4952 if (which == OP_GNBYNAME)
1e422769 4953 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4954 else
4955 sv_setpv(sv, nent->n_name);
4956 }
4957 RETURN;
4958 }
4959
4960 if (nent) {
3280af22 4961 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4962 sv_setpv(sv, nent->n_name);
3280af22 4963 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4964 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4965 sv_catpv(sv, *elem);
4966 if (elem[1])
4967 sv_catpvn(sv, " ", 1);
4968 }
3280af22 4969 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4970 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4971 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4972 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4973 }
4974
4975 RETURN;
4976#else
cea2e8a9 4977 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4978#endif
4979}
4980
4981PP(pp_gpbyname)
4982{
693762b4 4983#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4984 return pp_gprotoent();
a0d0e21e 4985#else
cea2e8a9 4986 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4987#endif
4988}
4989
4990PP(pp_gpbynumber)
4991{
693762b4 4992#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4993 return pp_gprotoent();
a0d0e21e 4994#else
cea2e8a9 4995 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4996#endif
4997}
4998
4999PP(pp_gprotoent)
5000{
693762b4 5001#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 5002 dSP;
533c011a 5003 I32 which = PL_op->op_type;
a0d0e21e 5004 register char **elem;
301e8125 5005 register SV *sv;
dc45a647 5006#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5007 struct protoent *getprotobyname(Netdb_name_t);
5008 struct protoent *getprotobynumber(int);
5009 struct protoent *getprotoent(void);
8ac85365 5010#endif
a0d0e21e
LW		 5011 struct protoent *pent;
5012
edd309b7 5013 if (which == OP_GPBYNAME) {
e5c9fcd0 5014#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 5015 char* name = POPpbytex;
5016 pent = PerlSock_getprotobyname(name);
e5c9fcd0 5017#else
cea2e8a9 5018 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 5019#endif
edd309b7
JH		 5020 }
5021 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 5022#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 5023 int number = POPi;
5024 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 5025#else
edd309b7 5026 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 5027#endif
edd309b7 5028 }
a0d0e21e 5029 else
e5c9fcd0 5030#ifdef HAS_GETPROTOENT
6ad3d225 5031 pent = PerlSock_getprotoent();
e5c9fcd0 5032#else
cea2e8a9 5033 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5034#endif
a0d0e21e
LW		 5035
5036 EXTEND(SP, 3);
5037 if (GIMME != G_ARRAY) {
5038 PUSHs(sv = sv_newmortal());
5039 if (pent) {
5040 if (which == OP_GPBYNAME)
1e422769 5041 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5042 else
5043 sv_setpv(sv, pent->p_name);
5044 }
5045 RETURN;
5046 }
5047
5048 if (pent) {
3280af22 5049 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5050 sv_setpv(sv, pent->p_name);
3280af22 5051 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5052 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5053 sv_catpv(sv, *elem);
5054 if (elem[1])
5055 sv_catpvn(sv, " ", 1);
5056 }
3280af22 5057 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5058 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5059 }
5060
5061 RETURN;
5062#else
cea2e8a9 5063 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5064#endif
5065}
5066
5067PP(pp_gsbyname)
5068{
9ec75305 5069#ifdef HAS_GETSERVBYNAME
cea2e8a9 5070 return pp_gservent();
a0d0e21e 5071#else
cea2e8a9 5072 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5073#endif
5074}
5075
5076PP(pp_gsbyport)
5077{
9ec75305 5078#ifdef HAS_GETSERVBYPORT
cea2e8a9 5079 return pp_gservent();
a0d0e21e 5080#else
cea2e8a9 5081 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5082#endif
5083}
5084
5085PP(pp_gservent)
5086{
693762b4 5087#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5088 dSP;
533c011a 5089 I32 which = PL_op->op_type;
a0d0e21e
LW		 5090 register char **elem;
5091 register SV *sv;
dc45a647 5092#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5093 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5094 struct servent *getservbyport(int, Netdb_name_t);
5095 struct servent *getservent(void);
8ac85365 5096#endif
a0d0e21e
LW		 5097 struct servent *sent;
5098
5099 if (which == OP_GSBYNAME) {
dc45a647 5100#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5101 char *proto = POPpbytex;
5102 char *name = POPpbytex;
a0d0e21e
LW		 5103
5104 if (proto && !*proto)
5105 proto = Nullch;
5106
6ad3d225 5107 sent = PerlSock_getservbyname(name, proto);
dc45a647 5108#else
cea2e8a9 5109 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5110#endif
a0d0e21e
LW		 5111 }
5112 else if (which == OP_GSBYPORT) {
dc45a647 5113#ifdef HAS_GETSERVBYPORT
42e0c139 5114 char *proto = POPpbytex;
eb160463 5115 unsigned short port = (unsigned short)POPu;
a0d0e21e 5116
2b872cca
SR		 5117 if (proto && !*proto)
5118 proto = Nullch;
5119
36477c24 5120#ifdef HAS_HTONS
6ad3d225 5121 port = PerlSock_htons(port);
36477c24 5122#endif
6ad3d225 5123 sent = PerlSock_getservbyport(port, proto);
dc45a647 5124#else
cea2e8a9 5125 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5126#endif
a0d0e21e
LW		 5127 }
5128 else
e5c9fcd0 5129#ifdef HAS_GETSERVENT
6ad3d225 5130 sent = PerlSock_getservent();
e5c9fcd0 5131#else
cea2e8a9 5132 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5133#endif
a0d0e21e
LW		 5134
5135 EXTEND(SP, 4);
5136 if (GIMME != G_ARRAY) {
5137 PUSHs(sv = sv_newmortal());
5138 if (sent) {
5139 if (which == OP_GSBYNAME) {
5140#ifdef HAS_NTOHS
6ad3d225 5141 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5142#else
1e422769 5143 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5144#endif
5145 }
5146 else
5147 sv_setpv(sv, sent->s_name);
5148 }
5149 RETURN;
5150 }
5151
5152 if (sent) {
3280af22 5153 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5154 sv_setpv(sv, sent->s_name);
3280af22 5155 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5156 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5157 sv_catpv(sv, *elem);
5158 if (elem[1])
5159 sv_catpvn(sv, " ", 1);
5160 }
3280af22 5161 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5162#ifdef HAS_NTOHS
76e3520e 5163 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5164#else
1e422769 5165 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5166#endif
3280af22 5167 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5168 sv_setpv(sv, sent->s_proto);
5169 }
5170
5171 RETURN;
5172#else
cea2e8a9 5173 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5174#endif
5175}
5176
5177PP(pp_shostent)
5178{
693762b4 5179#ifdef HAS_SETHOSTENT
9cad6237 5180 dSP;
76e3520e 5181 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5182 RETSETYES;
5183#else
cea2e8a9 5184 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5185#endif
5186}
5187
5188PP(pp_snetent)
5189{
693762b4 5190#ifdef HAS_SETNETENT
9cad6237 5191 dSP;
76e3520e 5192 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5193 RETSETYES;
5194#else
cea2e8a9 5195 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5196#endif
5197}
5198
5199PP(pp_sprotoent)
5200{
693762b4 5201#ifdef HAS_SETPROTOENT
9cad6237 5202 dSP;
76e3520e 5203 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5204 RETSETYES;
5205#else
cea2e8a9 5206 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5207#endif
5208}
5209
5210PP(pp_sservent)
5211{
693762b4 5212#ifdef HAS_SETSERVENT
9cad6237 5213 dSP;
76e3520e 5214 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5215 RETSETYES;
5216#else
cea2e8a9 5217 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5218#endif
5219}
5220
5221PP(pp_ehostent)
5222{
693762b4 5223#ifdef HAS_ENDHOSTENT
9cad6237 5224 dSP;
76e3520e 5225 PerlSock_endhostent();
924508f0 5226 EXTEND(SP,1);
a0d0e21e
LW		 5227 RETPUSHYES;
5228#else
cea2e8a9 5229 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5230#endif
5231}
5232
5233PP(pp_enetent)
5234{
693762b4 5235#ifdef HAS_ENDNETENT
9cad6237 5236 dSP;
76e3520e 5237 PerlSock_endnetent();
924508f0 5238 EXTEND(SP,1);
a0d0e21e
LW		 5239 RETPUSHYES;
5240#else
cea2e8a9 5241 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5242#endif
5243}
5244
5245PP(pp_eprotoent)
5246{
693762b4 5247#ifdef HAS_ENDPROTOENT
9cad6237 5248 dSP;
76e3520e 5249 PerlSock_endprotoent();
924508f0 5250 EXTEND(SP,1);
a0d0e21e
LW		 5251 RETPUSHYES;
5252#else
cea2e8a9 5253 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5254#endif
5255}
5256
5257PP(pp_eservent)
5258{
693762b4 5259#ifdef HAS_ENDSERVENT
9cad6237 5260 dSP;
76e3520e 5261 PerlSock_endservent();
924508f0 5262 EXTEND(SP,1);
a0d0e21e
LW		 5263 RETPUSHYES;
5264#else
cea2e8a9 5265 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5266#endif
5267}
5268
5269PP(pp_gpwnam)
5270{
5271#ifdef HAS_PASSWD
cea2e8a9 5272 return pp_gpwent();
a0d0e21e 5273#else
cea2e8a9 5274 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5275#endif
5276}
5277
5278PP(pp_gpwuid)
5279{
5280#ifdef HAS_PASSWD
cea2e8a9 5281 return pp_gpwent();
a0d0e21e 5282#else
cea2e8a9 5283 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5284#endif
5285}
5286
5287PP(pp_gpwent)
5288{
0994c4d0 5289#ifdef HAS_PASSWD
9cad6237 5290 dSP;
533c011a 5291 I32 which = PL_op->op_type;
a0d0e21e 5292 register SV *sv;
e3aefe8d 5293 struct passwd *pwent = NULL;
301e8125 5294 /*
bcf53261
JH		 5295 * We currently support only the SysV getsp* shadow password interface.
5296 * The interface is declared in <shadow.h> and often one needs to link
5297 * with -lsecurity or some such.
5298 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5299 * (and SCO?)
5300 *
5301 * AIX getpwnam() is clever enough to return the encrypted password
5302 * only if the caller (euid?) is root.
5303 *
e549f1c5 5304 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5305 * seem to contain more than one interface for accessing the shadow
5306 * password databases, possibly for compatibility reasons.
3813c136 5307 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5308 * are much more complicated, but also very similar to each other.
5309 *
5310 * <sys/types.h>
5311 * <sys/security.h>
5312 * <prot.h>
5313 * struct pr_passwd *getprpw*();
5314 * The password is in
3813c136
JH		 5315 * char getprpw*(...).ufld.fd_encrypt[]
5316 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5317 *
5318 * <sys/types.h>
5319 * <sys/security.h>
5320 * <prot.h>
5321 * struct es_passwd *getespw*();
5322 * The password is in
5323 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5324 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5325 *
e1920a95 5326 * <userpw.h> (AIX)
e549f1c5
JH		 5327 * struct userpw *getuserpw();
5328 * The password is in
5329 * char *(getuserpw(...)).spw_upw_passwd
5330 * (but the de facto standard getpwnam() should work okay)
5331 *
3813c136 5332 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5333 *
5334 * In HP-UX for getprpw*() the manual page claims that one should include
5335 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5336 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5337 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5338 *
5339 * Note that <sys/security.h> is already probed for, but currently
5340 * it is only included in special cases.
301e8125 5341 *
bcf53261
JH		 5342 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5343 * be preferred interface, even though also the getprpw*() interface
5344 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5345 * One also needs to call set_auth_parameters() in main() before
5346 * doing anything else, whether one is using getespw*() or getprpw*().
5347 *
5348 * Note that accessing the shadow databases can be magnitudes
5349 * slower than accessing the standard databases.
bcf53261
JH		 5350 *
5351 * --jhi
5352 */
a0d0e21e 5353
9e5f0c48
JH		 5354# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5355 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5356 * the pw_comment is left uninitialized. */
5357 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5358# endif
5359
e3aefe8d
JH		 5360 switch (which) {
5361 case OP_GPWNAM:
edd309b7
JH		 5362 {
5363 char* name = POPpbytex;
5364 pwent = getpwnam(name);
5365 }
5366 break;
e3aefe8d 5367 case OP_GPWUID:
edd309b7
JH		 5368 {
5369 Uid_t uid = POPi;
5370 pwent = getpwuid(uid);
5371 }
e3aefe8d
JH		 5372 break;
5373 case OP_GPWENT:
1883634f 5374# ifdef HAS_GETPWENT
e3aefe8d 5375 pwent = getpwent();
faea9016
IRC		 5376#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5377 if (pwent) pwent = getpwnam(pwent->pw_name);
5378#endif
1883634f 5379# else
a45d1c96 5380 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5381# endif
e3aefe8d
JH		 5382 break;
5383 }
8c0bfa08 5384
a0d0e21e
LW		 5385 EXTEND(SP, 10);
5386 if (GIMME != G_ARRAY) {
5387 PUSHs(sv = sv_newmortal());
5388 if (pwent) {
5389 if (which == OP_GPWNAM)
1883634f 5390# if Uid_t_sign <= 0
1e422769 5391 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5392# else
23dcd6c8 5393 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5394# endif
a0d0e21e
LW		 5395 else
5396 sv_setpv(sv, pwent->pw_name);
5397 }
5398 RETURN;
5399 }
5400
5401 if (pwent) {
3280af22 5402 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5403 sv_setpv(sv, pwent->pw_name);
6ee623d5 5404
3280af22 5405 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5406 SvPOK_off(sv);
5407 /* If we have getspnam(), we try to dig up the shadow
5408 * password. If we are underprivileged, the shadow
5409 * interface will set the errno to EACCES or similar,
5410 * and return a null pointer. If this happens, we will
5411 * use the dummy password (usually "*" or "x") from the
5412 * standard password database.
5413 *
5414 * In theory we could skip the shadow call completely
5415 * if euid != 0 but in practice we cannot know which
5416 * security measures are guarding the shadow databases
5417 * on a random platform.
5418 *
5419 * Resist the urge to use additional shadow interfaces.
5420 * Divert the urge to writing an extension instead.
5421 *
5422 * --jhi */
e549f1c5
JH		 5423 /* Some AIX setups falsely(?) detect some getspnam(), which
5424 * has a different API than the Solaris/IRIX one. */
5425# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5426 {
5427 struct spwd *spwent;
5428 int saverrno; /* Save and restore errno so that
5429 * underprivileged attempts seem
5430 * to have never made the unsccessful
5431 * attempt to retrieve the shadow password. */
5432
5433 saverrno = errno;
5434 spwent = getspnam(pwent->pw_name);
5435 errno = saverrno;
5436 if (spwent && spwent->sp_pwdp)
5437 sv_setpv(sv, spwent->sp_pwdp);
5438 }
f1066039 5439# endif
e020c87d 5440# ifdef PWPASSWD
3813c136
JH		 5441 if (!SvPOK(sv)) /* Use the standard password, then. */
5442 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5443# endif
3813c136 5444
1883634f 5445# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5446 /* passwd is tainted because user himself can diddle with it.
5447 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5448 SvTAINTED_on(sv);
1883634f 5449# endif
6ee623d5 5450
3280af22 5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5452# if Uid_t_sign <= 0
1e422769 5453 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5454# else
23dcd6c8 5455 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5456# endif
6ee623d5 5457
3280af22 5458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5459# if Uid_t_sign <= 0
1e422769 5460 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5461# else
23dcd6c8 5462 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5463# endif
3813c136
JH		 5464 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5465 * because of the poor interface of the Perl getpw*(),
5466 * not because there's some standard/convention saying so.
5467 * A better interface would have been to return a hash,
5468 * but we are accursed by our history, alas. --jhi. */
3280af22 5469 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5470# ifdef PWCHANGE
1e422769 5471 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5472# else
1883634f
JH		 5473# ifdef PWQUOTA
5474 sv_setiv(sv, (IV)pwent->pw_quota);
5475# else
a1757be1 5476# ifdef PWAGE
a0d0e21e 5477 sv_setpv(sv, pwent->pw_age);
a1757be1 5478# endif
6ee623d5
GS		 5479# endif
5480# endif
6ee623d5 5481
3813c136
JH		 5482 /* pw_class and pw_comment are mutually exclusive--.
5483 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5484 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5485# ifdef PWCLASS
a0d0e21e 5486 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5487# else
5488# ifdef PWCOMMENT
a0d0e21e 5489 sv_setpv(sv, pwent->pw_comment);
1883634f 5490# endif
6ee623d5 5491# endif
6ee623d5 5492
3280af22 5493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5494# ifdef PWGECOS
a0d0e21e 5495 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5496# endif
5497# ifndef INCOMPLETE_TAINTS
d2719217 5498 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5499 SvTAINTED_on(sv);
1883634f 5500# endif
6ee623d5 5501
3280af22 5502 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5503 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5504
3280af22 5505 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5506 sv_setpv(sv, pwent->pw_shell);
1883634f 5507# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5508 /* pw_shell is tainted because user himself can diddle with it. */
5509 SvTAINTED_on(sv);
1883634f 5510# endif
6ee623d5 5511
1883634f 5512# ifdef PWEXPIRE
6b88bc9c 5513 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5514 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5515# endif
a0d0e21e
LW		 5516 }
5517 RETURN;
5518#else
cea2e8a9 5519 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5520#endif
5521}
5522
5523PP(pp_spwent)
5524{
d493b042 5525#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5526 dSP;
a0d0e21e
LW		 5527 setpwent();
5528 RETPUSHYES;
5529#else
cea2e8a9 5530 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5531#endif
5532}
5533
5534PP(pp_epwent)
5535{
28e8609d 5536#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5537 dSP;
a0d0e21e
LW		 5538 endpwent();
5539 RETPUSHYES;
5540#else
cea2e8a9 5541 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5542#endif
5543}
5544
5545PP(pp_ggrnam)
5546{
5547#ifdef HAS_GROUP
cea2e8a9 5548 return pp_ggrent();
a0d0e21e 5549#else
cea2e8a9 5550 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5551#endif
5552}
5553
5554PP(pp_ggrgid)
5555{
5556#ifdef HAS_GROUP
cea2e8a9 5557 return pp_ggrent();
a0d0e21e 5558#else
cea2e8a9 5559 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5560#endif
5561}
5562
5563PP(pp_ggrent)
5564{
0994c4d0 5565#ifdef HAS_GROUP
9cad6237 5566 dSP;
533c011a 5567 I32 which = PL_op->op_type;
a0d0e21e
LW		 5568 register char **elem;
5569 register SV *sv;
5570 struct group *grent;
5571
edd309b7
JH		 5572 if (which == OP_GGRNAM) {
5573 char* name = POPpbytex;
5574 grent = (struct group *)getgrnam(name);
5575 }
5576 else if (which == OP_GGRGID) {
5577 Gid_t gid = POPi;
5578 grent = (struct group *)getgrgid(gid);
5579 }
a0d0e21e 5580 else
0994c4d0 5581#ifdef HAS_GETGRENT
a0d0e21e 5582 grent = (struct group *)getgrent();
0994c4d0
JH		 5583#else
5584 DIE(aTHX_ PL_no_func, "getgrent");
5585#endif
a0d0e21e
LW		 5586
5587 EXTEND(SP, 4);
5588 if (GIMME != G_ARRAY) {
5589 PUSHs(sv = sv_newmortal());
5590 if (grent) {
5591 if (which == OP_GGRNAM)
1e422769 5592 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5593 else
5594 sv_setpv(sv, grent->gr_name);
5595 }
5596 RETURN;
5597 }
5598
5599 if (grent) {
3280af22 5600 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5601 sv_setpv(sv, grent->gr_name);
28e8609d 5602
3280af22 5603 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5604#ifdef GRPASSWD
a0d0e21e 5605 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5606#endif
5607
3280af22 5608 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5609 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5610
5b56e7c5 5611#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5612 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5613 /* In UNICOS/mk (_CRAYMPP) the multithreading
5614 * versions (getgrnam_r, getgrgid_r)
5615 * seem to return an illegal pointer
5616 * as the group members list, gr_mem.
5617 * getgrent() doesn't even have a _r version
5618 * but the gr_mem is poisonous anyway.
5619 * So yes, you cannot get the list of group
5620 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5621 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5622 sv_catpv(sv, *elem);
5623 if (elem[1])
5624 sv_catpvn(sv, " ", 1);
5625 }
3d7e8424 5626#endif
a0d0e21e
LW		 5627 }
5628
5629 RETURN;
5630#else
cea2e8a9 5631 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5632#endif
5633}
5634
5635PP(pp_sgrent)
5636{
28e8609d 5637#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5638 dSP;
a0d0e21e
LW		 5639 setgrent();
5640 RETPUSHYES;
5641#else
cea2e8a9 5642 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5643#endif
5644}
5645
5646PP(pp_egrent)
5647{
28e8609d 5648#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5649 dSP;
a0d0e21e
LW		 5650 endgrent();
5651 RETPUSHYES;
5652#else
cea2e8a9 5653 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5654#endif
5655}
5656
5657PP(pp_getlogin)
5658{
a0d0e21e 5659#ifdef HAS_GETLOGIN
9cad6237 5660 dSP; dTARGET;
a0d0e21e
LW		 5661 char *tmps;
5662 EXTEND(SP, 1);
76e3520e 5663 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5664 RETPUSHUNDEF;
5665 PUSHp(tmps, strlen(tmps));
5666 RETURN;
5667#else
cea2e8a9 5668 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5669#endif
5670}
5671
5672/* Miscellaneous. */
5673
5674PP(pp_syscall)
5675{
d2719217 5676#ifdef HAS_SYSCALL
39644a26 5677 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5678 register I32 items = SP - MARK;
5679 unsigned long a[20];
5680 register I32 i = 0;
5681 I32 retval = -1;
5682
3280af22 5683 if (PL_tainting) {
a0d0e21e 5684 while (++MARK <= SP) {
bbce6d69 5685 if (SvTAINTED(*MARK)) {
5686 TAINT;
5687 break;
5688 }
a0d0e21e
LW		 5689 }
5690 MARK = ORIGMARK;
5691 TAINT_PROPER("syscall");
5692 }
5693
5694 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5695 * or where sizeof(long) != sizeof(char*). But such machines will
5696 * not likely have syscall implemented either, so who cares?
5697 */
5698 while (++MARK <= SP) {
5699 if (SvNIOK(*MARK) || !i)
5700 a[i++] = SvIV(*MARK);
3280af22 5701 else if (*MARK == &PL_sv_undef)
748a9306 5702 a[i++] = 0;
301e8125 5703 else
8b6b16e7 5704 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5705 if (i > 15)
5706 break;
5707 }
5708 switch (items) {
5709 default:
cea2e8a9 5710 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5711 case 0:
cea2e8a9 5712 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5713 case 1:
5714 retval = syscall(a[0]);
5715 break;
5716 case 2:
5717 retval = syscall(a[0],a[1]);
5718 break;
5719 case 3:
5720 retval = syscall(a[0],a[1],a[2]);
5721 break;
5722 case 4:
5723 retval = syscall(a[0],a[1],a[2],a[3]);
5724 break;
5725 case 5:
5726 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5727 break;
5728 case 6:
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5730 break;
5731 case 7:
5732 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5733 break;
5734 case 8:
5735 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5736 break;
5737#ifdef atarist
5738 case 9:
5739 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5740 break;
5741 case 10:
5742 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5743 break;
5744 case 11:
5745 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5746 a[10]);
5747 break;
5748 case 12:
5749 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5750 a[10],a[11]);
5751 break;
5752 case 13:
5753 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5754 a[10],a[11],a[12]);
5755 break;
5756 case 14:
5757 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5758 a[10],a[11],a[12],a[13]);
5759 break;
5760#endif /* atarist */
5761 }
5762 SP = ORIGMARK;
5763 PUSHi(retval);
5764 RETURN;
5765#else
cea2e8a9 5766 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5767#endif
5768}
5769
ff68c719 5770#ifdef FCNTL_EMULATE_FLOCK
301e8125 5771
ff68c719 5772/* XXX Emulate flock() with fcntl().
5773 What's really needed is a good file locking module.
5774*/
5775
cea2e8a9
GS		 5776static int
5777fcntl_emulate_flock(int fd, int operation)
ff68c719 5778{
5779 struct flock flock;
301e8125 5780
ff68c719 5781 switch (operation & ~LOCK_NB) {
5782 case LOCK_SH:
5783 flock.l_type = F_RDLCK;
5784 break;
5785 case LOCK_EX:
5786 flock.l_type = F_WRLCK;
5787 break;
5788 case LOCK_UN:
5789 flock.l_type = F_UNLCK;
5790 break;
5791 default:
5792 errno = EINVAL;
5793 return -1;
5794 }
5795 flock.l_whence = SEEK_SET;
d9b3e12d 5796 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5797
ff68c719 5798 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5799}
5800
5801#endif /* FCNTL_EMULATE_FLOCK */
5802
5803#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5804
5805/* XXX Emulate flock() with lockf(). This is just to increase
5806 portability of scripts. The calls are not completely
5807 interchangeable. What's really needed is a good file
5808 locking module.
5809*/
5810
76c32331 5811/* The lockf() constants might have been defined in <unistd.h>.
5812 Unfortunately, <unistd.h> causes troubles on some mixed
5813 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5814
5815 Further, the lockf() constants aren't POSIX, so they might not be
5816 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5817 just stick in the SVID values and be done with it. Sigh.
5818*/
5819
5820# ifndef F_ULOCK
5821# define F_ULOCK 0 /* Unlock a previously locked region */
5822# endif
5823# ifndef F_LOCK
5824# define F_LOCK 1 /* Lock a region for exclusive use */
5825# endif
5826# ifndef F_TLOCK
5827# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5828# endif
5829# ifndef F_TEST
5830# define F_TEST 3 /* Test a region for other processes locks */
5831# endif
5832
cea2e8a9
GS		 5833static int
5834lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5835{
5836 int i;
84902520
TB		 5837 int save_errno;
5838 Off_t pos;
5839
5840 /* flock locks entire file so for lockf we need to do the same */
5841 save_errno = errno;
6ad3d225 5842 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5843 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5844 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5845 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5846 errno = save_errno;
5847
16d20bd9
AD		 5848 switch (operation) {
5849
5850 /* LOCK_SH - get a shared lock */
5851 case LOCK_SH:
5852 /* LOCK_EX - get an exclusive lock */
5853 case LOCK_EX:
5854 i = lockf (fd, F_LOCK, 0);
5855 break;
5856
5857 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5858 case LOCK_SH|LOCK_NB:
5859 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5860 case LOCK_EX|LOCK_NB:
5861 i = lockf (fd, F_TLOCK, 0);
5862 if (i == -1)
5863 if ((errno == EAGAIN) || (errno == EACCES))
5864 errno = EWOULDBLOCK;
5865 break;
5866
ff68c719 5867 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5868 case LOCK_UN:
ff68c719 5869 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5870 i = lockf (fd, F_ULOCK, 0);
5871 break;
5872
5873 /* Default - can't decipher operation */
5874 default:
5875 i = -1;
5876 errno = EINVAL;
5877 break;
5878 }
84902520
TB		 5879
5880 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5881 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5882
16d20bd9
AD		 5883 return (i);
5884}
ff68c719 5885
5886#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5887
5888/*
5889 * Local variables:
5890 * c-indentation-style: bsd
5891 * c-basic-offset: 4
5892 * indent-tabs-mode: t
5893 * End:
5894 *
37442d52
RGS		 5895 * ex: set ts=8 sts=4 sw=4 noet:
5896 */
Unnamed repository; edit this file 'description' to name the repository.