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Silence warnings about NSIG redefinition on Win32
[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;
dc8d642c
DM		 520 if (SvOK(tmpsv))
521 tmps = SvPV_const(tmpsv, len);
522 else
523 tmps = Nullch;
4e6ea2c3 524 }
a0d0e21e 525 }
06bf62c7
GS		 526 if (!tmps || !len)
527 tmpsv = sv_2mortal(newSVpvn("Died", 4));
528
cb50131a 529 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 530}
531
532/* I/O. */
533
534PP(pp_open)
535{
27da23d5 536 dVAR; dSP;
a567e93b
NIS		 537 dMARK; dORIGMARK;
538 dTARGET;
a0d0e21e
LW		 539 GV *gv;
540 SV *sv;
5b468f54 541 IO *io;
5c144d81 542 const char *tmps;
a0d0e21e 543 STRLEN len;
4592e6ca 544 MAGIC *mg;
a567e93b 545 bool ok;
a0d0e21e 546
a567e93b 547 gv = (GV *)*++MARK;
5f05dabc 548 if (!isGV(gv))
cea2e8a9 549 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 550 if ((io = GvIOp(gv)))
36477c24 551 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 552
5b468f54 553 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 554 /* Method's args are same as ours ... */
555 /* ... except handle is replaced by the object */
5b468f54 556 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 557 PUSHMARK(MARK);
4592e6ca
NIS		 558 PUTBACK;
559 ENTER;
864dbfa3 560 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 561 LEAVE;
562 SPAGAIN;
563 RETURN;
564 }
565
a567e93b
NIS		 566 if (MARK < SP) {
567 sv = *++MARK;
568 }
569 else {
35a08ec7 570 sv = GvSVn(gv);
a567e93b
NIS		 571 }
572
5c144d81
NC		 573 tmps = SvPV_const(sv, len);
574 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 575 SP = ORIGMARK;
576 if (ok)
3280af22
NIS		 577 PUSHi( (I32)PL_forkprocess );
578 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 579 PUSHi(0);
580 else
581 RETPUSHUNDEF;
582 RETURN;
583}
584
585PP(pp_close)
586{
27da23d5 587 dVAR; dSP;
a0d0e21e 588 GV *gv;
5b468f54 589 IO *io;
1d603a67 590 MAGIC *mg;
a0d0e21e
LW		 591
592 if (MAXARG == 0)
3280af22 593 gv = PL_defoutgv;
a0d0e21e
LW		 594 else
595 gv = (GV*)POPs;
1d603a67 596
5b468f54
AMS		 597 if (gv && (io = GvIO(gv))
598 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
599 {
1d603a67 600 PUSHMARK(SP);
5b468f54 601 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 602 PUTBACK;
603 ENTER;
864dbfa3 604 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 605 LEAVE;
606 SPAGAIN;
607 RETURN;
608 }
a0d0e21e 609 EXTEND(SP, 1);
54310121 610 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 611 RETURN;
612}
613
614PP(pp_pipe_op)
615{
a0d0e21e 616#ifdef HAS_PIPE
9cad6237 617 dSP;
a0d0e21e
LW		 618 GV *rgv;
619 GV *wgv;
620 register IO *rstio;
621 register IO *wstio;
622 int fd[2];
623
624 wgv = (GV*)POPs;
625 rgv = (GV*)POPs;
626
627 if (!rgv || !wgv)
628 goto badexit;
629
4633a7c4 630 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 631 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 632 rstio = GvIOn(rgv);
633 wstio = GvIOn(wgv);
634
635 if (IoIFP(rstio))
636 do_close(rgv, FALSE);
637 if (IoIFP(wstio))
638 do_close(wgv, FALSE);
639
6ad3d225 640 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 641 goto badexit;
642
460c8493
IZ		 643 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
644 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 645 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 646 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 647 IoTYPE(rstio) = IoTYPE_RDONLY;
648 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 649
650 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 651 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 652 else PerlLIO_close(fd[0]);
760ac839 653 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 654 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 655 goto badexit;
656 }
4771b018
GS		 657#if defined(HAS_FCNTL) && defined(F_SETFD)
658 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
659 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
660#endif
a0d0e21e
LW		 661 RETPUSHYES;
662
663badexit:
664 RETPUSHUNDEF;
665#else
cea2e8a9 666 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 667#endif
668}
669
670PP(pp_fileno)
671{
27da23d5 672 dVAR; dSP; dTARGET;
a0d0e21e
LW		 673 GV *gv;
674 IO *io;
760ac839 675 PerlIO *fp;
4592e6ca
NIS		 676 MAGIC *mg;
677
a0d0e21e
LW		 678 if (MAXARG < 1)
679 RETPUSHUNDEF;
680 gv = (GV*)POPs;
4592e6ca 681
5b468f54
AMS		 682 if (gv && (io = GvIO(gv))
683 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
684 {
4592e6ca 685 PUSHMARK(SP);
5b468f54 686 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 687 PUTBACK;
688 ENTER;
864dbfa3 689 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 690 LEAVE;
691 SPAGAIN;
692 RETURN;
693 }
694
c289d2f7
JH		 695 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
696 /* Can't do this because people seem to do things like
697 defined(fileno($foo)) to check whether $foo is a valid fh.
698 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
699 report_evil_fh(gv, io, PL_op->op_type);
700 */
a0d0e21e 701 RETPUSHUNDEF;
c289d2f7
JH		 702 }
703
760ac839 704 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 705 RETURN;
706}
707
708PP(pp_umask)
709{
27da23d5 710 dSP;
d7e492a4 711#ifdef HAS_UMASK
27da23d5 712 dTARGET;
761237fe 713 Mode_t anum;
a0d0e21e 714
a0d0e21e 715 if (MAXARG < 1) {
6ad3d225
GS		 716 anum = PerlLIO_umask(0);
717 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 718 }
719 else
6ad3d225 720 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 721 TAINT_PROPER("umask");
722 XPUSHi(anum);
723#else
a0288114 724 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 725 * Otherwise it's harmless and more useful to just return undef
726 * since 'group' and 'other' concepts probably don't exist here. */
727 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 728 DIE(aTHX_ "umask not implemented");
6b88bc9c 729 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 730#endif
731 RETURN;
732}
733
734PP(pp_binmode)
735{
27da23d5 736 dVAR; dSP;
a0d0e21e
LW		 737 GV *gv;
738 IO *io;
760ac839 739 PerlIO *fp;
4592e6ca 740 MAGIC *mg;
16fe6d59 741 SV *discp = Nullsv;
a0d0e21e
LW		 742
743 if (MAXARG < 1)
744 RETPUSHUNDEF;
60382766 745 if (MAXARG > 1) {
16fe6d59 746 discp = POPs;
60382766 747 }
a0d0e21e 748
301e8125 749 gv = (GV*)POPs;
4592e6ca 750
5b468f54
AMS		 751 if (gv && (io = GvIO(gv))
752 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
753 {
4592e6ca 754 PUSHMARK(SP);
5b468f54 755 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 756 if (discp)
757 XPUSHs(discp);
4592e6ca
NIS		 758 PUTBACK;
759 ENTER;
864dbfa3 760 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 761 LEAVE;
762 SPAGAIN;
763 RETURN;
764 }
a0d0e21e
LW		 765
766 EXTEND(SP, 1);
50f846a7 767 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 768 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
769 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 770 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 771 RETPUSHUNDEF;
772 }
a0d0e21e 773
40d98b49 774 PUTBACK;
60382766 775 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 776 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 777 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
778 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
779 mode_from_discipline(discp),
e62f0680 780 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 781 SPAGAIN;
782 RETPUSHUNDEF;
783 }
784 }
40d98b49 785 SPAGAIN;
a0d0e21e 786 RETPUSHYES;
40d98b49
JH		 787 }
788 else {
789 SPAGAIN;
a0d0e21e 790 RETPUSHUNDEF;
40d98b49 791 }
a0d0e21e
LW		 792}
793
794PP(pp_tie)
795{
27da23d5 796 dVAR; dSP; dMARK;
a0d0e21e
LW		 797 SV *varsv;
798 HV* stash;
799 GV *gv;
a0d0e21e 800 SV *sv;
1df70142 801 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 802 const char *methname;
14befaf4 803 int how = PERL_MAGIC_tied;
e336de0d 804 U32 items;
a0d0e21e 805
e336de0d 806 varsv = *++MARK;
6b05c17a
NIS		 807 switch(SvTYPE(varsv)) {
808 case SVt_PVHV:
809 methname = "TIEHASH";
bfcb3514 810 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 811 break;
812 case SVt_PVAV:
813 methname = "TIEARRAY";
814 break;
815 case SVt_PVGV:
7fb37951
AMS		 816#ifdef GV_UNIQUE_CHECK
817 if (GvUNIQUE((GV*)varsv)) {
818 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 819 }
820#endif
6b05c17a 821 methname = "TIEHANDLE";
14befaf4 822 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 823 /* For tied filehandles, we apply tiedscalar magic to the IO
824 slot of the GP rather than the GV itself. AMS 20010812 */
825 if (!GvIOp(varsv))
826 GvIOp(varsv) = newIO();
827 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 828 break;
829 default:
830 methname = "TIESCALAR";
14befaf4 831 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 832 break;
833 }
e336de0d
GS		 834 items = SP - MARK++;
835 if (sv_isobject(*MARK)) {
6b05c17a 836 ENTER;
e788e7d3 837 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 838 PUSHMARK(SP);
eb160463 839 EXTEND(SP,(I32)items);
e336de0d
GS		 840 while (items--)
841 PUSHs(*MARK++);
842 PUTBACK;
864dbfa3 843 call_method(methname, G_SCALAR);
301e8125 844 }
6b05c17a 845 else {
864dbfa3 846 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 847 * perhaps to get different error message ?
848 */
e336de0d 849 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 850 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 851 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
852 methname, *MARK);
6b05c17a
NIS		 853 }
854 ENTER;
e788e7d3 855 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 856 PUSHMARK(SP);
eb160463 857 EXTEND(SP,(I32)items);
e336de0d
GS		 858 while (items--)
859 PUSHs(*MARK++);
860 PUTBACK;
864dbfa3 861 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 862 }
a0d0e21e
LW		 863 SPAGAIN;
864
865 sv = TOPs;
d3acc0f7 866 POPSTACK;
a0d0e21e 867 if (sv_isobject(sv)) {
33c27489 868 sv_unmagic(varsv, how);
ae21d580 869 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 870 if (varsv == SvRV(sv) &&
d87ebaca
YST		 871 (SvTYPE(varsv) == SVt_PVAV ||
872 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 873 Perl_croak(aTHX_
874 "Self-ties of arrays and hashes are not supported");
d87ebaca 875 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 876 }
877 LEAVE;
3280af22 878 SP = PL_stack_base + markoff;
a0d0e21e
LW		 879 PUSHs(sv);
880 RETURN;
881}
882
883PP(pp_untie)
884{
27da23d5 885 dVAR; dSP;
5b468f54 886 MAGIC *mg;
33c27489 887 SV *sv = POPs;
1df70142 888 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 889 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 890
5b468f54
AMS		 891 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
892 RETPUSHYES;
893
65eba18f 894 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 895 SV * const obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 896 GV *gv;
897 CV *cv = NULL;
fa2b88e0
JS		 898 if (obj) {
899 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
900 isGV(gv) && (cv = GvCV(gv))) {
901 PUSHMARK(SP);
902 XPUSHs(SvTIED_obj((SV*)gv, mg));
903 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
904 PUTBACK;
905 ENTER;
906 call_sv((SV *)cv, G_VOID);
907 LEAVE;
908 SPAGAIN;
909 }
041457d9 910 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
9014280d 911 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 912 "untie attempted while %"UVuf" inner references still exist",
913 (UV)SvREFCNT(obj) - 1 ) ;
914 }
cbdc8872 915 }
916 }
38193a09 917 sv_unmagic(sv, how) ;
55497cff 918 RETPUSHYES;
a0d0e21e
LW		 919}
920
c07a80fd 921PP(pp_tied)
922{
39644a26 923 dSP;
1b6737cc 924 const MAGIC *mg;
33c27489 925 SV *sv = POPs;
1df70142 926 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 927 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 928
929 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
930 RETPUSHUNDEF;
c07a80fd 931
155aba94 932 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 933 SV *osv = SvTIED_obj(sv, mg);
934 if (osv == mg->mg_obj)
935 osv = sv_mortalcopy(osv);
936 PUSHs(osv);
937 RETURN;
c07a80fd 938 }
c07a80fd 939 RETPUSHUNDEF;
940}
941
a0d0e21e
LW		 942PP(pp_dbmopen)
943{
27da23d5 944 dVAR; dSP;
a0d0e21e
LW		 945 dPOPPOPssrl;
946 HV* stash;
947 GV *gv;
a0d0e21e
LW		 948 SV *sv;
949
1b6737cc 950 HV * const hv = (HV*)POPs;
a0d0e21e 951
3280af22 952 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 953 sv_setpv(sv, "AnyDBM_File");
954 stash = gv_stashsv(sv, FALSE);
8ebc5c01 955 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 956 PUTBACK;
864dbfa3 957 require_pv("AnyDBM_File.pm");
a0d0e21e 958 SPAGAIN;
8ebc5c01 959 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 960 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 961 }
962
57d3b86d 963 ENTER;
924508f0 964 PUSHMARK(SP);
6b05c17a 965
924508f0 966 EXTEND(SP, 5);
a0d0e21e
LW		 967 PUSHs(sv);
968 PUSHs(left);
969 if (SvIV(right))
b448e4fe 970 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 971 else
b448e4fe 972 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 973 PUSHs(right);
57d3b86d 974 PUTBACK;
864dbfa3 975 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 976 SPAGAIN;
977
978 if (!sv_isobject(TOPs)) {
924508f0
GS		 979 SP--;
980 PUSHMARK(SP);
a0d0e21e
LW		 981 PUSHs(sv);
982 PUSHs(left);
b448e4fe 983 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 984 PUSHs(right);
a0d0e21e 985 PUTBACK;
864dbfa3 986 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 987 SPAGAIN;
988 }
989
6b05c17a 990 if (sv_isobject(TOPs)) {
14befaf4
DM		 991 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
992 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 993 }
a0d0e21e
LW		 994 LEAVE;
995 RETURN;
996}
997
998PP(pp_dbmclose)
999{
cea2e8a9 1000 return pp_untie();
a0d0e21e
LW		 1001}
1002
1003PP(pp_sselect)
1004{
a0d0e21e 1005#ifdef HAS_SELECT
9cad6237 1006 dSP; dTARGET;
a0d0e21e
LW		 1007 register I32 i;
1008 register I32 j;
1009 register char *s;
1010 register SV *sv;
65202027 1011 NV value;
a0d0e21e
LW		 1012 I32 maxlen = 0;
1013 I32 nfound;
1014 struct timeval timebuf;
1015 struct timeval *tbuf = &timebuf;
1016 I32 growsize;
1017 char *fd_sets[4];
1018#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1019 I32 masksize;
1020 I32 offset;
1021 I32 k;
1022
1023# if BYTEORDER & 0xf0000
1024# define ORDERBYTE (0x88888888 - BYTEORDER)
1025# else
1026# define ORDERBYTE (0x4444 - BYTEORDER)
1027# endif
1028
1029#endif
1030
1031 SP -= 4;
1032 for (i = 1; i <= 3; i++) {
729c079f
NC		 1033 SV *sv = SP[i];
1034 if (SvOK(sv) && SvREADONLY(sv)) {
1035 if (SvIsCOW(sv))
1036 sv_force_normal_flags(sv, 0);
1037 if (SvREADONLY(sv))
1038 DIE(aTHX_ PL_no_modify);
1039 }
1040 if (!SvPOK(sv))
a0d0e21e 1041 continue;
729c079f 1042 j = SvCUR(sv);
a0d0e21e
LW		 1043 if (maxlen < j)
1044 maxlen = j;
1045 }
1046
5ff3f7a4 1047/* little endians can use vecs directly */
e366b469 1048#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1049# ifdef NFDBITS
a0d0e21e 1050
5ff3f7a4
GS		 1051# ifndef NBBY
1052# define NBBY 8
1053# endif
a0d0e21e
LW		 1054
1055 masksize = NFDBITS / NBBY;
5ff3f7a4 1056# else
a0d0e21e 1057 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1058# endif
a0d0e21e
LW		 1059 Zero(&fd_sets[0], 4, char*);
1060#endif
1061
ad517f75
MHM		 1062# if SELECT_MIN_BITS == 1
1063 growsize = sizeof(fd_set);
1064# else
1065# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1066# undef SELECT_MIN_BITS
1067# define SELECT_MIN_BITS __FD_SETSIZE
1068# endif
e366b469
PG		 1069 /* If SELECT_MIN_BITS is greater than one we most probably will want
1070 * to align the sizes with SELECT_MIN_BITS/8 because for example
1071 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1072 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1073 * on (sets/tests/clears bits) is 32 bits. */
1074 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1075# endif
1076
a0d0e21e
LW		 1077 sv = SP[4];
1078 if (SvOK(sv)) {
1079 value = SvNV(sv);
1080 if (value < 0.0)
1081 value = 0.0;
1082 timebuf.tv_sec = (long)value;
65202027 1083 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1084 timebuf.tv_usec = (long)(value * 1000000.0);
1085 }
1086 else
1087 tbuf = Null(struct timeval*);
1088
1089 for (i = 1; i <= 3; i++) {
1090 sv = SP[i];
1091 if (!SvOK(sv)) {
1092 fd_sets[i] = 0;
1093 continue;
1094 }
1095 else if (!SvPOK(sv))
8b6b16e7 1096 SvPV_force_nolen(sv); /* force string conversion */
a0d0e21e
LW		 1097 j = SvLEN(sv);
1098 if (j < growsize) {
1099 Sv_Grow(sv, growsize);
a0d0e21e 1100 }
c07a80fd 1101 j = SvCUR(sv);
1102 s = SvPVX(sv) + j;
1103 while (++j <= growsize) {
1104 *s++ = '\0';
1105 }
1106
a0d0e21e
LW		 1107#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1108 s = SvPVX(sv);
a02a5408 1109 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1110 for (offset = 0; offset < growsize; offset += masksize) {
1111 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1112 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1113 }
1114#else
1115 fd_sets[i] = SvPVX(sv);
1116#endif
1117 }
1118
dc4c69d9
JH		 1119#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1120 /* Can't make just the (void*) conditional because that would be
1121 * cpp #if within cpp macro, and not all compilers like that. */
1122 nfound = PerlSock_select(
1123 maxlen * 8,
1124 (Select_fd_set_t) fd_sets[1],
1125 (Select_fd_set_t) fd_sets[2],
1126 (Select_fd_set_t) fd_sets[3],
1127 (void*) tbuf); /* Workaround for compiler bug. */
1128#else
6ad3d225 1129 nfound = PerlSock_select(
a0d0e21e
LW		 1130 maxlen * 8,
1131 (Select_fd_set_t) fd_sets[1],
1132 (Select_fd_set_t) fd_sets[2],
1133 (Select_fd_set_t) fd_sets[3],
1134 tbuf);
dc4c69d9 1135#endif
a0d0e21e
LW		 1136 for (i = 1; i <= 3; i++) {
1137 if (fd_sets[i]) {
1138 sv = SP[i];
1139#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1140 s = SvPVX(sv);
1141 for (offset = 0; offset < growsize; offset += masksize) {
1142 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1143 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1144 }
1145 Safefree(fd_sets[i]);
1146#endif
1147 SvSETMAGIC(sv);
1148 }
1149 }
1150
5c477709
RGS		 1151 if (nfound == -1)
1152 PUSHs(&PL_sv_undef);
1153 else
1154 PUSHi(nfound);
a0d0e21e 1155 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1156 value = (NV)(timebuf.tv_sec) +
1157 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1158 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1159 sv_setnv(sv, value);
1160 }
1161 RETURN;
1162#else
cea2e8a9 1163 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1164#endif
1165}
1166
4633a7c4 1167void
864dbfa3 1168Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1169{
1170 if (gv)
1171 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1172 if (PL_defoutgv)
1173 SvREFCNT_dec(PL_defoutgv);
1174 PL_defoutgv = gv;
4633a7c4
LW		 1175}
1176
a0d0e21e
LW		 1177PP(pp_select)
1178{
39644a26 1179 dSP; dTARGET;
1df70142 1180 GV *egv;
4633a7c4
LW		 1181 HV *hv;
1182
1df70142 1183 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1184
3280af22 1185 egv = GvEGV(PL_defoutgv);
4633a7c4 1186 if (!egv)
3280af22 1187 egv = PL_defoutgv;
4633a7c4
LW		 1188 hv = GvSTASH(egv);
1189 if (! hv)
3280af22 1190 XPUSHs(&PL_sv_undef);
4633a7c4 1191 else {
1b6737cc 1192 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1193 if (gvp && *gvp == egv) {
f7aaccc2 1194 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1195 XPUSHTARG;
1196 }
1197 else {
1198 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1199 }
4633a7c4
LW		 1200 }
1201
1202 if (newdefout) {
ded8aa31
GS		 1203 if (!GvIO(newdefout))
1204 gv_IOadd(newdefout);
4633a7c4
LW		 1205 setdefout(newdefout);
1206 }
1207
a0d0e21e
LW		 1208 RETURN;
1209}
1210
1211PP(pp_getc)
1212{
27da23d5 1213 dVAR; dSP; dTARGET;
90133b69 1214 IO *io = NULL;
2ae324a7 1215 MAGIC *mg;
1b6737cc 1216 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1217
5b468f54
AMS		 1218 if (gv && (io = GvIO(gv))
1219 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1220 {
f54cb97a 1221 const I32 gimme = GIMME_V;
2ae324a7 1222 PUSHMARK(SP);
5b468f54 1223 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1224 PUTBACK;
1225 ENTER;
864dbfa3 1226 call_method("GETC", gimme);
2ae324a7 1227 LEAVE;
1228 SPAGAIN;
54310121 1229 if (gimme == G_SCALAR)
1230 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1231 RETURN;
1232 }
90133b69 1233 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM		 1234 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1235 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1236 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1237 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1238 RETPUSHUNDEF;
90133b69 1239 }
bbce6d69 1240 TAINT;
c69006e4 1241 sv_setpvn(TARG, " ", 1);
9bc64814 1242 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1243 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1244 /* Find out how many bytes the char needs */
aa07b2f6 1245 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1246 if (len > 1) {
1247 SvGROW(TARG,len+1);
1248 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1249 SvCUR_set(TARG,1+len);
1250 }
1251 SvUTF8_on(TARG);
1252 }
a0d0e21e
LW		 1253 PUSHTARG;
1254 RETURN;
1255}
1256
1257PP(pp_read)
1258{
cea2e8a9 1259 return pp_sysread();
a0d0e21e
LW		 1260}
1261
76e3520e 1262STATIC OP *
cea2e8a9 1263S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1264{
27da23d5 1265 dVAR;
c09156bb 1266 register PERL_CONTEXT *cx;
f54cb97a 1267 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1268
1269 ENTER;
1270 SAVETMPS;
1271
146174a9 1272 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1273 PUSHFORMAT(cx);
f39bc417 1274 cx->blk_sub.retop = retop;
fd617465
DM		 1275 SAVECOMPPAD();
1276 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1277
4633a7c4 1278 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1279 return CvSTART(cv);
1280}
1281
1282PP(pp_enterwrite)
1283{
39644a26 1284 dSP;
a0d0e21e
LW		 1285 register GV *gv;
1286 register IO *io;
1287 GV *fgv;
1288 CV *cv;
1289
1290 if (MAXARG == 0)
3280af22 1291 gv = PL_defoutgv;
a0d0e21e
LW		 1292 else {
1293 gv = (GV*)POPs;
1294 if (!gv)
3280af22 1295 gv = PL_defoutgv;
a0d0e21e
LW		 1296 }
1297 EXTEND(SP, 1);
1298 io = GvIO(gv);
1299 if (!io) {
1300 RETPUSHNO;
1301 }
1302 if (IoFMT_GV(io))
1303 fgv = IoFMT_GV(io);
1304 else
1305 fgv = gv;
1306
1307 cv = GvFORM(fgv);
a0d0e21e
LW		 1308 if (!cv) {
1309 if (fgv) {
1df70142 1310 SV * const tmpsv = sv_newmortal();
e62f0680 1311 const char *name;
43693395 1312 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1313 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1314 if (name && *name)
1315 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1316 }
cea2e8a9 1317 DIE(aTHX_ "Not a format reference");
a0d0e21e 1318 }
44a8e56a 1319 if (CvCLONE(cv))
1320 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1321
44a8e56a 1322 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1323 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1324}
1325
1326PP(pp_leavewrite)
1327{
27da23d5 1328 dVAR; dSP;
1b6737cc
AL		 1329 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1330 register IO * const io = GvIOp(gv);
1331 PerlIO * const ofp = IoOFP(io);
760ac839 1332 PerlIO *fp;
8772537c
AL		 1333 SV **newsp;
1334 I32 gimme;
c09156bb 1335 register PERL_CONTEXT *cx;
a0d0e21e 1336
760ac839 1337 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1338 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1339 if (!io || !ofp)
1340 goto forget_top;
3280af22
NIS		 1341 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1342 PL_formtarget != PL_toptarget)
a0d0e21e 1343 {
4633a7c4
LW		 1344 GV *fgv;
1345 CV *cv;
a0d0e21e
LW		 1346 if (!IoTOP_GV(io)) {
1347 GV *topgv;
a0d0e21e
LW		 1348
1349 if (!IoTOP_NAME(io)) {
1b6737cc 1350 SV *topname;
a0d0e21e
LW		 1351 if (!IoFMT_NAME(io))
1352 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1353 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1354 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1355 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1356 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1357 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1358 else
ff5bdd37 1359 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1360 }
1361 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1362 if (!topgv || !GvFORM(topgv)) {
b929a54b 1363 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1364 goto forget_top;
1365 }
1366 IoTOP_GV(io) = topgv;
1367 }
748a9306
LW		 1368 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1369 I32 lines = IoLINES_LEFT(io);
504618e9 1370 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1371 if (lines <= 0) /* Yow, header didn't even fit!!! */
1372 goto forget_top;
748a9306
LW		 1373 while (lines-- > 0) {
1374 s = strchr(s, '\n');
1375 if (!s)
1376 break;
1377 s++;
1378 }
1379 if (s) {
f54cb97a 1380 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1381 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1382 do_print(PL_formtarget, ofp);
1383 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1384 sv_chop(PL_formtarget, s);
1385 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1386 }
1387 }
a0d0e21e 1388 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1389 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1390 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1391 IoPAGE(io)++;
3280af22 1392 PL_formtarget = PL_toptarget;
748a9306 1393 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1394 fgv = IoTOP_GV(io);
1395 if (!fgv)
cea2e8a9 1396 DIE(aTHX_ "bad top format reference");
4633a7c4 1397 cv = GvFORM(fgv);
1df70142
AL		 1398 if (!cv) {
1399 SV * const sv = sv_newmortal();
b464bac0 1400 const char *name;
1df70142 1401 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1402 name = SvPV_nolen_const(sv);
2dd78f96 1403 if (name && *name)
1df70142 1404 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1405 }
1df70142
AL		 1406 /* why no:
1407 else
1408 DIE(aTHX_ "Undefined top format called");
1409 ?*/
44a8e56a 1410 if (CvCLONE(cv))
1411 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1412 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1413 }
1414
1415 forget_top:
3280af22 1416 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1417 POPFORMAT(cx);
1418 LEAVE;
1419
1420 fp = IoOFP(io);
1421 if (!fp) {
599cee73 1422 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1423 if (IoIFP(io))
1424 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1425 else if (ckWARN(WARN_CLOSED))
bc37a18f 1426 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1427 }
3280af22 1428 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1429 }
1430 else {
3280af22 1431 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1432 if (ckWARN(WARN_IO))
9014280d 1433 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1434 }
d75029d0 1435 if (!do_print(PL_formtarget, fp))
3280af22 1436 PUSHs(&PL_sv_no);
a0d0e21e 1437 else {
3280af22
NIS		 1438 FmLINES(PL_formtarget) = 0;
1439 SvCUR_set(PL_formtarget, 0);
1440 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1441 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1442 (void)PerlIO_flush(fp);
3280af22 1443 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1444 }
1445 }
9cbac4c7 1446 /* bad_ofp: */
3280af22 1447 PL_formtarget = PL_bodytarget;
a0d0e21e 1448 PUTBACK;
29033a8a
SH		 1449 PERL_UNUSED_VAR(newsp);
1450 PERL_UNUSED_VAR(gimme);
f39bc417 1451 return cx->blk_sub.retop;
a0d0e21e
LW		 1452}
1453
1454PP(pp_prtf)
1455{
27da23d5 1456 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1457 GV *gv;
1458 IO *io;
760ac839 1459 PerlIO *fp;
26db47c4 1460 SV *sv;
46fc3d4c 1461 MAGIC *mg;
a0d0e21e 1462
533c011a 1463 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1464 gv = (GV*)*++MARK;
1465 else
3280af22 1466 gv = PL_defoutgv;
46fc3d4c 1467
5b468f54
AMS		 1468 if (gv && (io = GvIO(gv))
1469 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1470 {
46fc3d4c 1471 if (MARK == ORIGMARK) {
4352c267 1472 MEXTEND(SP, 1);
46fc3d4c 1473 ++MARK;
1474 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1475 ++SP;
1476 }
1477 PUSHMARK(MARK - 1);
5b468f54 1478 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1479 PUTBACK;
1480 ENTER;
864dbfa3 1481 call_method("PRINTF", G_SCALAR);
46fc3d4c 1482 LEAVE;
1483 SPAGAIN;
1484 MARK = ORIGMARK + 1;
1485 *MARK = *SP;
1486 SP = MARK;
1487 RETURN;
1488 }
1489
26db47c4 1490 sv = NEWSV(0,0);
a0d0e21e 1491 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1492 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1493 report_evil_fh(gv, io, PL_op->op_type);
93189314 1494 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1495 goto just_say_no;
1496 }
1497 else if (!(fp = IoOFP(io))) {
599cee73 1498 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1499 if (IoIFP(io))
1500 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1501 else if (ckWARN(WARN_CLOSED))
bc37a18f 1502 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1503 }
93189314 1504 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1505 goto just_say_no;
1506 }
1507 else {
1508 do_sprintf(sv, SP - MARK, MARK + 1);
1509 if (!do_print(sv, fp))
1510 goto just_say_no;
1511
1512 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1513 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1514 goto just_say_no;
1515 }
1516 SvREFCNT_dec(sv);
1517 SP = ORIGMARK;
3280af22 1518 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1519 RETURN;
1520
1521 just_say_no:
1522 SvREFCNT_dec(sv);
1523 SP = ORIGMARK;
3280af22 1524 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1525 RETURN;
1526}
1527
c07a80fd 1528PP(pp_sysopen)
1529{
39644a26 1530 dSP;
1df70142
AL		 1531 const int perm = (MAXARG > 3) ? POPi : 0666;
1532 const int mode = POPi;
1b6737cc
AL		 1533 SV * const sv = POPs;
1534 GV * const gv = (GV *)POPs;
1535 STRLEN len;
c07a80fd 1536
4592e6ca 1537 /* Need TIEHANDLE method ? */
1b6737cc 1538 const char * const tmps = SvPV_const(sv, len);
e62f0680
NC		 1539 /* FIXME? do_open should do const */
1540 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1541 IoLINES(GvIOp(gv)) = 0;
3280af22 1542 PUSHs(&PL_sv_yes);
c07a80fd 1543 }
1544 else {
3280af22 1545 PUSHs(&PL_sv_undef);
c07a80fd 1546 }
1547 RETURN;
1548}
1549
a0d0e21e
LW		 1550PP(pp_sysread)
1551{
27da23d5 1552 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1553 int offset;
a0d0e21e
LW		 1554 IO *io;
1555 char *buffer;
5b54f415 1556 SSize_t length;
eb5c063a 1557 SSize_t count;
1e422769 1558 Sock_size_t bufsize;
748a9306 1559 SV *bufsv;
a0d0e21e 1560 STRLEN blen;
eb5c063a 1561 int fp_utf8;
1dd30107
NC		 1562 int buffer_utf8;
1563 SV *read_target;
eb5c063a
NIS		 1564 Size_t got = 0;
1565 Size_t wanted;
1d636c13 1566 bool charstart = FALSE;
87330c3c
JH		 1567 STRLEN charskip = 0;
1568 STRLEN skip = 0;
a0d0e21e 1569
1b6737cc 1570 GV * const gv = (GV*)*++MARK;
5b468f54 1571 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1572 && gv && (io = GvIO(gv)) )
137443ea 1573 {
1b6737cc
AL		 1574 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1575 if (mg) {
1576 SV *sv;
1577 PUSHMARK(MARK-1);
1578 *MARK = SvTIED_obj((SV*)io, mg);
1579 ENTER;
1580 call_method("READ", G_SCALAR);
1581 LEAVE;
1582 SPAGAIN;
1583 sv = POPs;
1584 SP = ORIGMARK;
1585 PUSHs(sv);
1586 RETURN;
1587 }
2ae324a7 1588 }
1589
a0d0e21e
LW		 1590 if (!gv)
1591 goto say_undef;
748a9306 1592 bufsv = *++MARK;
ff68c719 1593 if (! SvOK(bufsv))
1594 sv_setpvn(bufsv, "", 0);
a0d0e21e 1595 length = SvIVx(*++MARK);
748a9306 1596 SETERRNO(0,0);
a0d0e21e
LW		 1597 if (MARK < SP)
1598 offset = SvIVx(*++MARK);
1599 else
1600 offset = 0;
1601 io = GvIO(gv);
b5fe5ca2
SR		 1602 if (!io || !IoIFP(io)) {
1603 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1604 report_evil_fh(gv, io, PL_op->op_type);
1605 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1606 goto say_undef;
b5fe5ca2 1607 }
0064a8a9 1608 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1609 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1610 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1611 SvUTF8_on(bufsv);
9b9d7ce8 1612 buffer_utf8 = 0;
7d59b7e4
NIS		 1613 }
1614 else {
1615 buffer = SvPV_force(bufsv, blen);
1dd30107 1616 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1617 }
1618 if (length < 0)
1619 DIE(aTHX_ "Negative length");
eb5c063a 1620 wanted = length;
7d59b7e4 1621
d0965105
JH		 1622 charstart = TRUE;
1623 charskip = 0;
87330c3c 1624 skip = 0;
d0965105 1625
a0d0e21e 1626#ifdef HAS_SOCKET
533c011a 1627 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1628 char namebuf[MAXPATHLEN];
17a8c7ba 1629#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1630 bufsize = sizeof (struct sockaddr_in);
1631#else
46fc3d4c 1632 bufsize = sizeof namebuf;
490ab354 1633#endif
abf95952
IZ		 1634#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1635 if (bufsize >= 256)
1636 bufsize = 255;
1637#endif
eb160463 1638 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1639 /* 'offset' means 'flags' here */
eb5c063a 1640 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1641 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1642 if (count < 0)
a0d0e21e 1643 RETPUSHUNDEF;
4107cc59
OF		 1644#ifdef EPOC
1645 /* Bogus return without padding */
1646 bufsize = sizeof (struct sockaddr_in);
1647#endif
eb5c063a 1648 SvCUR_set(bufsv, count);
748a9306
LW		 1649 *SvEND(bufsv) = '\0';
1650 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1651 if (fp_utf8)
1652 SvUTF8_on(bufsv);
748a9306 1653 SvSETMAGIC(bufsv);
aac0dd9a 1654 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1655 if (!(IoFLAGS(io) & IOf_UNTAINT))
1656 SvTAINTED_on(bufsv);
a0d0e21e 1657 SP = ORIGMARK;
46fc3d4c 1658 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1659 PUSHs(TARG);
1660 RETURN;
1661 }
1662#else
911d147d 1663 if (PL_op->op_type == OP_RECV)
cea2e8a9 1664 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1665#endif
eb5c063a
NIS		 1666 if (DO_UTF8(bufsv)) {
1667 /* offset adjust in characters not bytes */
1668 blen = sv_len_utf8(bufsv);
7d59b7e4 1669 }
bbce6d69 1670 if (offset < 0) {
eb160463 1671 if (-offset > (int)blen)
cea2e8a9 1672 DIE(aTHX_ "Offset outside string");
bbce6d69 1673 offset += blen;
1674 }
eb5c063a
NIS		 1675 if (DO_UTF8(bufsv)) {
1676 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1677 if (offset >= (int)blen)
1678 offset += SvCUR(bufsv) - blen;
1679 else
1680 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1681 }
1682 more_bytes:
cd52b7b2 1683 bufsize = SvCUR(bufsv);
1dd30107
NC		 1684 /* Allocating length + offset + 1 isn't perfect in the case of reading
1685 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1686 unduly.
1687 (should be 2 * length + offset + 1, or possibly something longer if
1688 PL_encoding is true) */
eb160463 1689 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1690 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1691 Zero(buffer+bufsize, offset-bufsize, char);
1692 }
eb5c063a 1693 buffer = buffer + offset;
1dd30107
NC		 1694 if (!buffer_utf8) {
1695 read_target = bufsv;
1696 } else {
1697 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1698 concatenate it to the current buffer. */
1699
1700 /* Truncate the existing buffer to the start of where we will be
1701 reading to: */
1702 SvCUR_set(bufsv, offset);
1703
1704 read_target = sv_newmortal();
862a34c6 1705 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1706 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1707 }
eb5c063a 1708
533c011a 1709 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1710#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1711 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1712 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1713 buffer, length, 0);
a7092146
GS		 1714 }
1715 else
1716#endif
1717 {
eb5c063a
NIS		 1718 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1719 buffer, length);
a7092146 1720 }
a0d0e21e
LW		 1721 }
1722 else
1723#ifdef HAS_SOCKET__bad_code_maybe
50952442 1724 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1725 char namebuf[MAXPATHLEN];
490ab354
JH		 1726#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1727 bufsize = sizeof (struct sockaddr_in);
1728#else
46fc3d4c 1729 bufsize = sizeof namebuf;
490ab354 1730#endif
eb5c063a 1731 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1732 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1733 }
1734 else
1735#endif
3b02c43c 1736 {
eb5c063a
NIS		 1737 count = PerlIO_read(IoIFP(io), buffer, length);
1738 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1739 if (count == 0 && PerlIO_error(IoIFP(io)))
1740 count = -1;
3b02c43c 1741 }
eb5c063a 1742 if (count < 0) {
a00b5bd3 1743 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1744 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1745 goto say_undef;
af8c498a 1746 }
aa07b2f6 1747 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1748 *SvEND(read_target) = '\0';
1749 (void)SvPOK_only(read_target);
0064a8a9 1750 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1751 /* Look at utf8 we got back and count the characters */
1df70142 1752 const char *bend = buffer + count;
eb5c063a 1753 while (buffer < bend) {
d0965105
JH		 1754 if (charstart) {
1755 skip = UTF8SKIP(buffer);
1756 charskip = 0;
1757 }
1758 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1759 /* partial character - try for rest of it */
1760 length = skip - (bend-buffer);
aa07b2f6 1761 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1762 charstart = FALSE;
1763 charskip += count;
eb5c063a
NIS		 1764 goto more_bytes;
1765 }
1766 else {
1767 got++;
1768 buffer += skip;
d0965105
JH		 1769 charstart = TRUE;
1770 charskip = 0;
eb5c063a
NIS		 1771 }
1772 }
1773 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1774 provided amount read (count) was what was requested (length)
1775 */
1776 if (got < wanted && count == length) {
d0965105 1777 length = wanted - got;
aa07b2f6 1778 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1779 goto more_bytes;
1780 }
1781 /* return value is character count */
1782 count = got;
1783 SvUTF8_on(bufsv);
1784 }
1dd30107
NC		 1785 else if (buffer_utf8) {
1786 /* Let svcatsv upgrade the bytes we read in to utf8.
1787 The buffer is a mortal so will be freed soon. */
1788 sv_catsv_nomg(bufsv, read_target);
1789 }
748a9306 1790 SvSETMAGIC(bufsv);
aac0dd9a 1791 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1792 if (!(IoFLAGS(io) & IOf_UNTAINT))
1793 SvTAINTED_on(bufsv);
a0d0e21e 1794 SP = ORIGMARK;
eb5c063a 1795 PUSHi(count);
a0d0e21e
LW		 1796 RETURN;
1797
1798 say_undef:
1799 SP = ORIGMARK;
1800 RETPUSHUNDEF;
1801}
1802
1803PP(pp_syswrite)
1804{
27da23d5 1805 dVAR; dSP;
1df70142 1806 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1807 if (items == 2) {
9f089d78 1808 SV *sv;
092bebab 1809 EXTEND(SP, 1);
9f089d78
SB		 1810 sv = sv_2mortal(newSViv(sv_len(*SP)));
1811 PUSHs(sv);
092bebab
JH		 1812 PUTBACK;
1813 }
cea2e8a9 1814 return pp_send();
a0d0e21e
LW		 1815}
1816
1817PP(pp_send)
1818{
27da23d5 1819 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1820 GV *gv;
1821 IO *io;
748a9306 1822 SV *bufsv;
83003860 1823 const char *buffer;
8c99d73e
GS		 1824 Size_t length;
1825 SSize_t retval;
a0d0e21e 1826 STRLEN blen;
1d603a67 1827 MAGIC *mg;
a0d0e21e
LW		 1828
1829 gv = (GV*)*++MARK;
14befaf4 1830 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1831 && gv && (io = GvIO(gv))
1832 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1833 {
1d603a67
GB		 1834 SV *sv;
1835
1836 PUSHMARK(MARK-1);
5b468f54 1837 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1838 ENTER;
864dbfa3 1839 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1840 LEAVE;
1841 SPAGAIN;
1842 sv = POPs;
1843 SP = ORIGMARK;
1844 PUSHs(sv);
1845 RETURN;
1846 }
a0d0e21e
LW		 1847 if (!gv)
1848 goto say_undef;
748a9306 1849 bufsv = *++MARK;
8c99d73e 1850#if Size_t_size > IVSIZE
3c001241 1851 length = (Size_t)SvNVx(*++MARK);
146174a9 1852#else
3c001241 1853 length = (Size_t)SvIVx(*++MARK);
146174a9 1854#endif
3c001241 1855 if ((SSize_t)length < 0)
cea2e8a9 1856 DIE(aTHX_ "Negative length");
748a9306 1857 SETERRNO(0,0);
a0d0e21e
LW		 1858 io = GvIO(gv);
1859 if (!io || !IoIFP(io)) {
8c99d73e 1860 retval = -1;
bc37a18f
RG		 1861 if (ckWARN(WARN_CLOSED))
1862 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1863 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1864 goto say_undef;
1865 }
1866
1867 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1868 if (!SvUTF8(bufsv)) {
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 buffer = sv_2pvutf8(bufsv, &blen);
1871 } else
83003860 1872 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1873 }
7d59b7e4 1874 else {
4de5f5ca
JH		 1875 if (DO_UTF8(bufsv)) {
1876 /* Not modifying source SV, so making a temporary copy. */
1877 bufsv = sv_2mortal(newSVsv(bufsv));
1878 sv_utf8_downgrade(bufsv, FALSE);
1879 }
83003860 1880 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1881 }
1882
1883 if (PL_op->op_type == OP_SYSWRITE) {
1884 IV offset;
1885 if (DO_UTF8(bufsv)) {
1886 /* length and offset are in chars */
1887 blen = sv_len_utf8(bufsv);
1888 }
bbce6d69 1889 if (MARK < SP) {
a0d0e21e 1890 offset = SvIVx(*++MARK);
bbce6d69 1891 if (offset < 0) {
eb160463 1892 if (-offset > (IV)blen)
cea2e8a9 1893 DIE(aTHX_ "Offset outside string");
bbce6d69 1894 offset += blen;
eb160463 1895 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1896 DIE(aTHX_ "Offset outside string");
bbce6d69 1897 } else
a0d0e21e
LW		 1898 offset = 0;
1899 if (length > blen - offset)
1900 length = blen - offset;
7d59b7e4 1901 if (DO_UTF8(bufsv)) {
83003860 1902 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1903 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1904 }
1905 else {
1906 buffer = buffer+offset;
1907 }
a7092146 1908#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1909 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1911 buffer, length, 0);
a7092146
GS		 1912 }
1913 else
1914#endif
1915 {
94e4c244 1916 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1917 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1918 buffer, length);
a7092146 1919 }
a0d0e21e
LW		 1920 }
1921#ifdef HAS_SOCKET
1922 else if (SP > MARK) {
a0d0e21e 1923 STRLEN mlen;
1df70142 1924 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1925 /* length is really flags */
8c99d73e
GS		 1926 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1927 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1928 }
1929 else
7d59b7e4 1930 /* length is really flags */
8c99d73e 1931 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1932#else
1933 else
cea2e8a9 1934 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1935#endif
8c99d73e 1936 if (retval < 0)
a0d0e21e
LW		 1937 goto say_undef;
1938 SP = ORIGMARK;
f36eea10
JH		 1939 if (DO_UTF8(bufsv))
1940 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1941#if Size_t_size > IVSIZE
1942 PUSHn(retval);
1943#else
1944 PUSHi(retval);
1945#endif
a0d0e21e
LW		 1946 RETURN;
1947
1948 say_undef:
1949 SP = ORIGMARK;
1950 RETPUSHUNDEF;
1951}
1952
1953PP(pp_recv)
1954{
cea2e8a9 1955 return pp_sysread();
a0d0e21e
LW		 1956}
1957
1958PP(pp_eof)
1959{
27da23d5 1960 dVAR; dSP;
a0d0e21e 1961 GV *gv;
5b468f54 1962 IO *io;
4592e6ca 1963 MAGIC *mg;
a0d0e21e 1964
32da55ab 1965 if (MAXARG == 0) {
146174a9
CB		 1966 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1967 IO *io;
ed2c6b9b 1968 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1969 io = GvIO(gv);
1970 if (io && !IoIFP(io)) {
1971 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1972 IoLINES(io) = 0;
1973 IoFLAGS(io) &= ~IOf_START;
dd374669 1974 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1975 sv_setpvn(GvSV(gv), "-", 1);
1976 SvSETMAGIC(GvSV(gv));
1977 }
1978 else if (!nextargv(gv))
1979 RETPUSHYES;
1980 }
1981 }
1982 else
1983 gv = PL_last_in_gv; /* eof */
1984 }
a0d0e21e 1985 else
146174a9 1986 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1987
5b468f54
AMS		 1988 if (gv && (io = GvIO(gv))
1989 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1990 {
4592e6ca 1991 PUSHMARK(SP);
5b468f54 1992 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1993 PUTBACK;
1994 ENTER;
864dbfa3 1995 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1996 LEAVE;
1997 SPAGAIN;
1998 RETURN;
1999 }
2000
54310121 2001 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 2002 RETURN;
2003}
2004
2005PP(pp_tell)
2006{
27da23d5 2007 dVAR; dSP; dTARGET;
301e8125 2008 GV *gv;
5b468f54 2009 IO *io;
4592e6ca 2010 MAGIC *mg;
a0d0e21e 2011
32da55ab 2012 if (MAXARG == 0)
3280af22 2013 gv = PL_last_in_gv;
a0d0e21e 2014 else
3280af22 2015 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2016
5b468f54
AMS		 2017 if (gv && (io = GvIO(gv))
2018 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2019 {
4592e6ca 2020 PUSHMARK(SP);
5b468f54 2021 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2022 PUTBACK;
2023 ENTER;
864dbfa3 2024 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2025 LEAVE;
2026 SPAGAIN;
2027 RETURN;
2028 }
2029
146174a9
CB		 2030#if LSEEKSIZE > IVSIZE
2031 PUSHn( do_tell(gv) );
2032#else
a0d0e21e 2033 PUSHi( do_tell(gv) );
146174a9 2034#endif
a0d0e21e
LW		 2035 RETURN;
2036}
2037
2038PP(pp_seek)
2039{
cea2e8a9 2040 return pp_sysseek();
137443ea 2041}
2042
2043PP(pp_sysseek)
2044{
27da23d5 2045 dVAR; dSP;
a0d0e21e 2046 GV *gv;
5b468f54 2047 IO *io;
1df70142 2048 const int whence = POPi;
146174a9
CB		 2049#if LSEEKSIZE > IVSIZE
2050 Off_t offset = (Off_t)SvNVx(POPs);
2051#else
d9b3e12d 2052 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2053#endif
4592e6ca 2054 MAGIC *mg;
a0d0e21e 2055
3280af22 2056 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2057
5b468f54
AMS		 2058 if (gv && (io = GvIO(gv))
2059 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2060 {
4592e6ca 2061 PUSHMARK(SP);
5b468f54 2062 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2063#if LSEEKSIZE > IVSIZE
2064 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2065#else
b448e4fe 2066 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2067#endif
b448e4fe 2068 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2069 PUTBACK;
2070 ENTER;
864dbfa3 2071 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2072 LEAVE;
2073 SPAGAIN;
2074 RETURN;
2075 }
2076
533c011a 2077 if (PL_op->op_type == OP_SEEK)
8903cb82 2078 PUSHs(boolSV(do_seek(gv, offset, whence)));
2079 else {
b448e4fe
JH		 2080 Off_t sought = do_sysseek(gv, offset, whence);
2081 if (sought < 0)
146174a9
CB		 2082 PUSHs(&PL_sv_undef);
2083 else {
b448e4fe 2084 SV* sv = sought ?
146174a9 2085#if LSEEKSIZE > IVSIZE
b448e4fe 2086 newSVnv((NV)sought)
146174a9 2087#else
b448e4fe 2088 newSViv(sought)
146174a9
CB		 2089#endif
2090 : newSVpvn(zero_but_true, ZBTLEN);
2091 PUSHs(sv_2mortal(sv));
2092 }
8903cb82 2093 }
a0d0e21e
LW		 2094 RETURN;
2095}
2096
2097PP(pp_truncate)
2098{
39644a26 2099 dSP;
8c99d73e
GS		 2100 /* There seems to be no consensus on the length type of truncate()
2101 * and ftruncate(), both off_t and size_t have supporters. In
2102 * general one would think that when using large files, off_t is
2103 * at least as wide as size_t, so using an off_t should be okay. */
2104 /* XXX Configure probe for the length type of *truncate() needed XXX */
2105 Off_t len;
a0d0e21e 2106
25342a55 2107#if Off_t_size > IVSIZE
8c99d73e
GS		 2108 len = (Off_t)POPn;
2109#else
2110 len = (Off_t)POPi;
2111#endif
2112 /* Checking for length < 0 is problematic as the type might or
301e8125 2113 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2114 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2115 SETERRNO(0,0);
d05c1ba0 2116 {
d05c1ba0
JH		 2117 int result = 1;
2118 GV *tmpgv;
090bf15b
SR		 2119 IO *io;
2120
d05c1ba0 2121 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2122 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2123
090bf15b
SR		 2124 do_ftruncate_gv:
2125 if (!GvIO(tmpgv))
2126 result = 0;
d05c1ba0 2127 else {
090bf15b
SR		 2128 PerlIO *fp;
2129 io = GvIOp(tmpgv);
2130 do_ftruncate_io:
2131 TAINT_PROPER("truncate");
2132 if (!(fp = IoIFP(io))) {
2133 result = 0;
2134 }
2135 else {
2136 PerlIO_flush(fp);
cbdc8872 2137#ifdef HAS_TRUNCATE
090bf15b 2138 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2139#else
090bf15b 2140 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2141#endif
090bf15b
SR		 2142 result = 0;
2143 }
d05c1ba0 2144 }
cbdc8872 2145 }
d05c1ba0
JH		 2146 else {
2147 SV *sv = POPs;
83003860 2148 const char *name;
7a5fd60d 2149
d05c1ba0
JH		 2150 if (SvTYPE(sv) == SVt_PVGV) {
2151 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2152 goto do_ftruncate_gv;
d05c1ba0
JH		 2153 }
2154 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2155 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2156 goto do_ftruncate_gv;
2157 }
2158 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2159 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2160 goto do_ftruncate_io;
d05c1ba0 2161 }
1e422769 2162
83003860 2163 name = SvPV_nolen_const(sv);
d05c1ba0 2164 TAINT_PROPER("truncate");
cbdc8872 2165#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2166 if (truncate(name, len) < 0)
2167 result = 0;
cbdc8872 2168#else
d05c1ba0
JH		 2169 {
2170 int tmpfd;
2171
2172 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2173 result = 0;
d05c1ba0
JH		 2174 else {
2175 if (my_chsize(tmpfd, len) < 0)
2176 result = 0;
2177 PerlLIO_close(tmpfd);
2178 }
cbdc8872 2179 }
a0d0e21e 2180#endif
d05c1ba0 2181 }
a0d0e21e 2182
d05c1ba0
JH		 2183 if (result)
2184 RETPUSHYES;
2185 if (!errno)
93189314 2186 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2187 RETPUSHUNDEF;
2188 }
a0d0e21e
LW		 2189}
2190
2191PP(pp_fcntl)
2192{
cea2e8a9 2193 return pp_ioctl();
a0d0e21e
LW		 2194}
2195
2196PP(pp_ioctl)
2197{
39644a26 2198 dSP; dTARGET;
748a9306 2199 SV *argsv = POPs;
1df70142 2200 const unsigned int func = POPu;
e1ec3a88 2201 const int optype = PL_op->op_type;
a0d0e21e 2202 char *s;
324aa91a 2203 IV retval;
a0d0e21e 2204 GV *gv = (GV*)POPs;
c289d2f7 2205 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2206
748a9306 2207 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2208 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2209 report_evil_fh(gv, io, PL_op->op_type);
93189314 2210 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2211 RETPUSHUNDEF;
2212 }
2213
748a9306 2214 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2215 STRLEN len;
324aa91a 2216 STRLEN need;
748a9306 2217 s = SvPV_force(argsv, len);
324aa91a
HF		 2218 need = IOCPARM_LEN(func);
2219 if (len < need) {
2220 s = Sv_Grow(argsv, need + 1);
2221 SvCUR_set(argsv, need);
a0d0e21e
LW		 2222 }
2223
748a9306 2224 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2225 }
2226 else {
748a9306 2227 retval = SvIV(argsv);
c529f79d 2228 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2229 }
2230
2231 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2232
2233 if (optype == OP_IOCTL)
2234#ifdef HAS_IOCTL
76e3520e 2235 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2236#else
cea2e8a9 2237 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2238#endif
2239 else
c214f4ad
WB		 2240#ifndef HAS_FCNTL
2241 DIE(aTHX_ "fcntl is not implemented");
2242#else
55497cff 2243#if defined(OS2) && defined(__EMX__)
760ac839 2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2245#else
760ac839 2246 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2247#endif
6652bd42 2248#endif
a0d0e21e 2249
6652bd42 2250#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2251 if (SvPOK(argsv)) {
2252 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2253 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2254 OP_NAME(PL_op));
748a9306
LW		 2255 s[SvCUR(argsv)] = 0; /* put our null back */
2256 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2257 }
2258
2259 if (retval == -1)
2260 RETPUSHUNDEF;
2261 if (retval != 0) {
2262 PUSHi(retval);
2263 }
2264 else {
8903cb82 2265 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2266 }
4808266b 2267#endif
c214f4ad 2268 RETURN;
a0d0e21e
LW		 2269}
2270
2271PP(pp_flock)
2272{
9cad6237 2273#ifdef FLOCK
39644a26 2274 dSP; dTARGET;
a0d0e21e
LW		 2275 I32 value;
2276 int argtype;
2277 GV *gv;
bc37a18f 2278 IO *io = NULL;
760ac839 2279 PerlIO *fp;
16d20bd9 2280
a0d0e21e 2281 argtype = POPi;
32da55ab 2282 if (MAXARG == 0)
3280af22 2283 gv = PL_last_in_gv;
a0d0e21e
LW		 2284 else
2285 gv = (GV*)POPs;
bc37a18f
RG		 2286 if (gv && (io = GvIO(gv)))
2287 fp = IoIFP(io);
2288 else {
a0d0e21e 2289 fp = Nullfp;
bc37a18f
RG		 2290 io = NULL;
2291 }
a0d0e21e 2292 if (fp) {
68dc0745 2293 (void)PerlIO_flush(fp);
76e3520e 2294 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2295 }
cb50131a 2296 else {
bc37a18f
RG		 2297 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2298 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2299 value = 0;
93189314 2300 SETERRNO(EBADF,RMS_IFI);
cb50131a 2301 }
a0d0e21e
LW		 2302 PUSHi(value);
2303 RETURN;
2304#else
cea2e8a9 2305 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2306#endif
2307}
2308
2309/* Sockets. */
2310
2311PP(pp_socket)
2312{
a0d0e21e 2313#ifdef HAS_SOCKET
9cad6237 2314 dSP;
a0d0e21e
LW		 2315 GV *gv;
2316 register IO *io;
2317 int protocol = POPi;
2318 int type = POPi;
2319 int domain = POPi;
2320 int fd;
2321
2322 gv = (GV*)POPs;
c289d2f7 2323 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2324
c289d2f7
JH		 2325 if (!gv || !io) {
2326 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2327 report_evil_fh(gv, io, PL_op->op_type);
2328 if (IoIFP(io))
2329 do_close(gv, FALSE);
93189314 2330 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2331 RETPUSHUNDEF;
2332 }
2333
57171420
BS		 2334 if (IoIFP(io))
2335 do_close(gv, FALSE);
2336
a0d0e21e 2337 TAINT_PROPER("socket");
6ad3d225 2338 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2339 if (fd < 0)
2340 RETPUSHUNDEF;
460c8493
IZ		 2341 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2342 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2343 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2344 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2345 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2346 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2347 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2348 RETPUSHUNDEF;
2349 }
8d2a6795
GS		 2350#if defined(HAS_FCNTL) && defined(F_SETFD)
2351 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2352#endif
a0d0e21e 2353
d5ff79b3
OF		 2354#ifdef EPOC
2355 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2356#endif
2357
a0d0e21e
LW		 2358 RETPUSHYES;
2359#else
cea2e8a9 2360 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2361#endif
2362}
2363
2364PP(pp_sockpair)
2365{
c95c94b1 2366#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2367 dSP;
a0d0e21e
LW		 2368 GV *gv1;
2369 GV *gv2;
2370 register IO *io1;
2371 register IO *io2;
2372 int protocol = POPi;
2373 int type = POPi;
2374 int domain = POPi;
2375 int fd[2];
2376
2377 gv2 = (GV*)POPs;
2378 gv1 = (GV*)POPs;
c289d2f7
JH		 2379 io1 = gv1 ? GvIOn(gv1) : NULL;
2380 io2 = gv2 ? GvIOn(gv2) : NULL;
2381 if (!gv1 || !gv2 || !io1 || !io2) {
2382 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2383 if (!gv1 || !io1)
2384 report_evil_fh(gv1, io1, PL_op->op_type);
2385 if (!gv2 || !io2)
2386 report_evil_fh(gv1, io2, PL_op->op_type);
2387 }
2388 if (IoIFP(io1))
2389 do_close(gv1, FALSE);
2390 if (IoIFP(io2))
2391 do_close(gv2, FALSE);
a0d0e21e 2392 RETPUSHUNDEF;
c289d2f7 2393 }
a0d0e21e 2394
dc0d0a5f
JH		 2395 if (IoIFP(io1))
2396 do_close(gv1, FALSE);
2397 if (IoIFP(io2))
2398 do_close(gv2, FALSE);
57171420 2399
a0d0e21e 2400 TAINT_PROPER("socketpair");
6ad3d225 2401 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2402 RETPUSHUNDEF;
460c8493
IZ		 2403 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2405 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2406 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2407 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2408 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2409 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2410 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2411 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2412 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2413 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2414 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2415 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2416 RETPUSHUNDEF;
2417 }
8d2a6795
GS		 2418#if defined(HAS_FCNTL) && defined(F_SETFD)
2419 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2420 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2421#endif
a0d0e21e
LW		 2422
2423 RETPUSHYES;
2424#else
cea2e8a9 2425 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2426#endif
2427}
2428
2429PP(pp_bind)
2430{
a0d0e21e 2431#ifdef HAS_SOCKET
9cad6237 2432 dSP;
eec2d3df 2433#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2434 extern void GETPRIVMODE();
2435 extern void GETUSERMODE();
eec2d3df 2436#endif
748a9306 2437 SV *addrsv = POPs;
349d4f2f
NC		 2438 /* OK, so on what platform does bind modify addr? */
2439 const char *addr;
a0d0e21e
LW		 2440 GV *gv = (GV*)POPs;
2441 register IO *io = GvIOn(gv);
2442 STRLEN len;
eec2d3df
GS		 2443 int bind_ok = 0;
2444#ifdef MPE
2445 int mpeprivmode = 0;
2446#endif
a0d0e21e
LW		 2447
2448 if (!io || !IoIFP(io))
2449 goto nuts;
2450
349d4f2f 2451 addr = SvPV_const(addrsv, len);
a0d0e21e 2452 TAINT_PROPER("bind");
eec2d3df
GS		 2453#ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2461 mpeprivmode = 1;
2462 }
2463 }
2464#endif /* MPE */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2467 bind_ok = 1;
2468
2469#ifdef MPE /* Switch back to USER mode */
2470 if (mpeprivmode)
2471 GETUSERMODE();
2472#endif /* MPE */
2473
2474 if (bind_ok)
a0d0e21e
LW		 2475 RETPUSHYES;
2476 else
2477 RETPUSHUNDEF;
2478
2479nuts:
599cee73 2480 if (ckWARN(WARN_CLOSED))
bc37a18f 2481 report_evil_fh(gv, io, PL_op->op_type);
93189314 2482 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2483 RETPUSHUNDEF;
2484#else
cea2e8a9 2485 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2486#endif
2487}
2488
2489PP(pp_connect)
2490{
a0d0e21e 2491#ifdef HAS_SOCKET
9cad6237 2492 dSP;
748a9306 2493 SV *addrsv = POPs;
349d4f2f 2494 const char *addr;
a0d0e21e
LW		 2495 GV *gv = (GV*)POPs;
2496 register IO *io = GvIOn(gv);
2497 STRLEN len;
2498
2499 if (!io || !IoIFP(io))
2500 goto nuts;
2501
349d4f2f 2502 addr = SvPV_const(addrsv, len);
a0d0e21e 2503 TAINT_PROPER("connect");
6ad3d225 2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2505 RETPUSHYES;
2506 else
2507 RETPUSHUNDEF;
2508
2509nuts:
599cee73 2510 if (ckWARN(WARN_CLOSED))
bc37a18f 2511 report_evil_fh(gv, io, PL_op->op_type);
93189314 2512 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2513 RETPUSHUNDEF;
2514#else
cea2e8a9 2515 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2516#endif
2517}
2518
2519PP(pp_listen)
2520{
a0d0e21e 2521#ifdef HAS_SOCKET
9cad6237 2522 dSP;
a0d0e21e
LW		 2523 int backlog = POPi;
2524 GV *gv = (GV*)POPs;
c289d2f7 2525 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2526
c289d2f7 2527 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2528 goto nuts;
2529
6ad3d225 2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2531 RETPUSHYES;
2532 else
2533 RETPUSHUNDEF;
2534
2535nuts:
599cee73 2536 if (ckWARN(WARN_CLOSED))
bc37a18f 2537 report_evil_fh(gv, io, PL_op->op_type);
93189314 2538 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2539 RETPUSHUNDEF;
2540#else
cea2e8a9 2541 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2542#endif
2543}
2544
2545PP(pp_accept)
2546{
a0d0e21e 2547#ifdef HAS_SOCKET
9cad6237 2548 dSP; dTARGET;
a0d0e21e
LW		 2549 GV *ngv;
2550 GV *ggv;
2551 register IO *nstio;
2552 register IO *gstio;
93d47a36
JH		 2553 char namebuf[MAXPATHLEN];
2554#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2556#else
2557 Sock_size_t len = sizeof namebuf;
2558#endif
a0d0e21e
LW		 2559 int fd;
2560
2561 ggv = (GV*)POPs;
2562 ngv = (GV*)POPs;
2563
2564 if (!ngv)
2565 goto badexit;
2566 if (!ggv)
2567 goto nuts;
2568
2569 gstio = GvIO(ggv);
2570 if (!gstio || !IoIFP(gstio))
2571 goto nuts;
2572
2573 nstio = GvIOn(ngv);
93d47a36 2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2575 if (fd < 0)
2576 goto badexit;
a70048fb
AB		 2577 if (IoIFP(nstio))
2578 do_close(ngv, FALSE);
460c8493
IZ		 2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2581 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2586 goto badexit;
2587 }
8d2a6795
GS		 2588#if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2590#endif
a0d0e21e 2591
ed79a026 2592#ifdef EPOC
93d47a36 2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2595#endif
381c1bae 2596#ifdef __SCO_VERSION__
93d47a36 2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2598#endif
ed79a026 2599
93d47a36 2600 PUSHp(namebuf, len);
a0d0e21e
LW		 2601 RETURN;
2602
2603nuts:
599cee73 2604 if (ckWARN(WARN_CLOSED))
bc37a18f 2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2606 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2607
2608badexit:
2609 RETPUSHUNDEF;
2610
2611#else
cea2e8a9 2612 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2613#endif
2614}
2615
2616PP(pp_shutdown)
2617{
a0d0e21e 2618#ifdef HAS_SOCKET
9cad6237 2619 dSP; dTARGET;
a0d0e21e
LW		 2620 int how = POPi;
2621 GV *gv = (GV*)POPs;
2622 register IO *io = GvIOn(gv);
2623
2624 if (!io || !IoIFP(io))
2625 goto nuts;
2626
6ad3d225 2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2628 RETURN;
2629
2630nuts:
599cee73 2631 if (ckWARN(WARN_CLOSED))
bc37a18f 2632 report_evil_fh(gv, io, PL_op->op_type);
93189314 2633 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2634 RETPUSHUNDEF;
2635#else
cea2e8a9 2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2637#endif
2638}
2639
2640PP(pp_gsockopt)
2641{
2642#ifdef HAS_SOCKET
cea2e8a9 2643 return pp_ssockopt();
a0d0e21e 2644#else
cea2e8a9 2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2646#endif
2647}
2648
2649PP(pp_ssockopt)
2650{
a0d0e21e 2651#ifdef HAS_SOCKET
9cad6237 2652 dSP;
533c011a 2653 int optype = PL_op->op_type;
a0d0e21e
LW		 2654 SV *sv;
2655 int fd;
2656 unsigned int optname;
2657 unsigned int lvl;
2658 GV *gv;
2659 register IO *io;
1e422769 2660 Sock_size_t len;
a0d0e21e
LW		 2661
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2664 else
2665 sv = POPs;
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2668
2669 gv = (GV*)POPs;
2670 io = GvIOn(gv);
2671 if (!io || !IoIFP(io))
2672 goto nuts;
2673
760ac839 2674 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2675 switch (optype) {
2676 case OP_GSOCKOPT:
748a9306 2677 SvGROW(sv, 257);
a0d0e21e 2678 (void)SvPOK_only(sv);
748a9306
LW		 2679 SvCUR_set(sv,256);
2680 *SvEND(sv) ='\0';
1e422769 2681 len = SvCUR(sv);
6ad3d225 2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2683 goto nuts2;
1e422769 2684 SvCUR_set(sv, len);
748a9306 2685 *SvEND(sv) ='\0';
a0d0e21e
LW		 2686 PUSHs(sv);
2687 break;
2688 case OP_SSOCKOPT: {
349d4f2f 2689 const char *buf;
1e422769 2690 int aint;
2691 if (SvPOKp(sv)) {
2d8e6c8d 2692 STRLEN l;
349d4f2f 2693 buf = SvPV_const(sv, l);
2d8e6c8d 2694 len = l;
1e422769 2695 }
56ee1660 2696 else {
a0d0e21e 2697 aint = (int)SvIV(sv);
349d4f2f 2698 buf = (const char*)&aint;
a0d0e21e
LW		 2699 len = sizeof(int);
2700 }
6ad3d225 2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2702 goto nuts2;
3280af22 2703 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2704 }
2705 break;
2706 }
2707 RETURN;
2708
2709nuts:
599cee73 2710 if (ckWARN(WARN_CLOSED))
bc37a18f 2711 report_evil_fh(gv, io, optype);
93189314 2712 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2713nuts2:
2714 RETPUSHUNDEF;
2715
2716#else
cea2e8a9 2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2718#endif
2719}
2720
2721PP(pp_getsockname)
2722{
2723#ifdef HAS_SOCKET
cea2e8a9 2724 return pp_getpeername();
a0d0e21e 2725#else
cea2e8a9 2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2727#endif
2728}
2729
2730PP(pp_getpeername)
2731{
a0d0e21e 2732#ifdef HAS_SOCKET
9cad6237 2733 dSP;
533c011a 2734 int optype = PL_op->op_type;
a0d0e21e
LW		 2735 SV *sv;
2736 int fd;
2737 GV *gv = (GV*)POPs;
2738 register IO *io = GvIOn(gv);
1e422769 2739 Sock_size_t len;
a0d0e21e
LW		 2740
2741 if (!io || !IoIFP(io))
2742 goto nuts;
2743
2744 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2745 (void)SvPOK_only(sv);
1e422769 2746 len = 256;
2747 SvCUR_set(sv, len);
748a9306 2748 *SvEND(sv) ='\0';
760ac839 2749 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2750 switch (optype) {
2751 case OP_GETSOCKNAME:
6ad3d225 2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2753 goto nuts2;
2754 break;
2755 case OP_GETPEERNAME:
6ad3d225 2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2757 goto nuts2;
490ab354
JH		 2758#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2759 {
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f
NC		 2762 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2764 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2765 goto nuts2;
490ab354
JH		 2766 }
2767 }
2768#endif
a0d0e21e
LW		 2769 break;
2770 }
13826f2c
CS		 2771#ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
1e422769 2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
13826f2c 2776#endif
1e422769 2777 SvCUR_set(sv, len);
748a9306 2778 *SvEND(sv) ='\0';
a0d0e21e
LW		 2779 PUSHs(sv);
2780 RETURN;
2781
2782nuts:
599cee73 2783 if (ckWARN(WARN_CLOSED))
bc37a18f 2784 report_evil_fh(gv, io, optype);
93189314 2785 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2786nuts2:
2787 RETPUSHUNDEF;
2788
2789#else
cea2e8a9 2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2791#endif
2792}
2793
2794/* Stat calls. */
2795
2796PP(pp_lstat)
2797{
cea2e8a9 2798 return pp_stat();
a0d0e21e
LW		 2799}
2800
2801PP(pp_stat)
2802{
39644a26 2803 dSP;
2dd78f96 2804 GV *gv;
54310121 2805 I32 gimme;
a0d0e21e
LW		 2806 I32 max = 13;
2807
533c011a 2808 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2809 gv = cGVOP_gv;
8a4e5b40 2810 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2811 if (gv != PL_defgv) {
2812 if (ckWARN(WARN_IO))
9014280d 2813 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2814 "lstat() on filehandle %s", GvENAME(gv));
2815 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2816 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2817 }
2818
748a9306 2819 do_fstat:
2dd78f96 2820 if (gv != PL_defgv) {
3280af22 2821 PL_laststype = OP_STAT;
2dd78f96 2822 PL_statgv = gv;
c69006e4 2823 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2824 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2825 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2826 }
9ddeeac9 2827 if (PL_laststatval < 0) {
2dd78f96
JH		 2828 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2829 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2830 max = 0;
9ddeeac9 2831 }
a0d0e21e
LW		 2832 }
2833 else {
748a9306
LW		 2834 SV* sv = POPs;
2835 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2836 gv = (GV*)sv;
748a9306
LW		 2837 goto do_fstat;
2838 }
2839 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2840 gv = (GV*)SvRV(sv);
5d3e98de 2841 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2842 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2843 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2844 goto do_fstat;
2845 }
0510663f 2846 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2847 PL_statgv = Nullgv;
533c011a
NIS		 2848 PL_laststype = PL_op->op_type;
2849 if (PL_op->op_type == OP_LSTAT)
0510663f 2850 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2851 else
0510663f 2852 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2853 if (PL_laststatval < 0) {
0510663f 2854 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2855 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2856 max = 0;
2857 }
2858 }
2859
54310121 2860 gimme = GIMME_V;
2861 if (gimme != G_ARRAY) {
2862 if (gimme != G_VOID)
2863 XPUSHs(boolSV(max));
2864 RETURN;
a0d0e21e
LW		 2865 }
2866 if (max) {
36477c24 2867 EXTEND(SP, max);
2868 EXTEND_MORTAL(max);
1ff81528
PL		 2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2873#if Uid_t_size > IVSIZE
2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2875#else
23dcd6c8 2876# if Uid_t_sign <= 0
1ff81528 2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2878# else
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2880# endif
146174a9 2881#endif
301e8125 2882#if Gid_t_size > IVSIZE
146174a9
CB		 2883 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2884#else
23dcd6c8 2885# if Gid_t_sign <= 0
1ff81528 2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2887# else
2888 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2889# endif
146174a9 2890#endif
cbdc8872 2891#ifdef USE_STAT_RDEV
1ff81528 2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2893#else
79cb57f6 2894 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2895#endif
146174a9 2896#if Off_t_size > IVSIZE
4a9d6100 2897 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2898#else
1ff81528 2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2900#endif
cbdc8872 2901#ifdef BIG_TIME
172ae379
JH		 2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2905#else
1ff81528
PL		 2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2909#endif
a0d0e21e 2910#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2911 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2913#else
79cb57f6
GS		 2914 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2916#endif
2917 }
2918 RETURN;
2919}
2920
fbb0b3b3
RGS		 2921/* This macro is used by the stacked filetest operators :
2922 * if the previous filetest failed, short-circuit and pass its value.
2923 * Else, discard it from the stack and continue. --rgs
2924 */
2925#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2926 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2927 else { (void)POPs; PUTBACK; } \
2928 }
2929
a0d0e21e
LW		 2930PP(pp_ftrread)
2931{
9cad6237 2932 I32 result;
2a3ff820 2933 dSP;
fbb0b3b3 2934 STACKED_FTEST_CHECK;
5ff3f7a4 2935#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2937 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2938 if (result == 0)
2939 RETPUSHYES;
2940 if (result < 0)
2941 RETPUSHUNDEF;
2942 RETPUSHNO;
22865c03
GS		 2943 }
2944 else
cea2e8a9 2945 result = my_stat();
5ff3f7a4 2946#else
cea2e8a9 2947 result = my_stat();
5ff3f7a4 2948#endif
22865c03 2949 SPAGAIN;
a0d0e21e
LW		 2950 if (result < 0)
2951 RETPUSHUNDEF;
3280af22 2952 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2953 RETPUSHYES;
2954 RETPUSHNO;
2955}
2956
2957PP(pp_ftrwrite)
2958{
9cad6237 2959 I32 result;
2a3ff820 2960 dSP;
fbb0b3b3 2961 STACKED_FTEST_CHECK;
5ff3f7a4 2962#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2963 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2964 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2965 if (result == 0)
2966 RETPUSHYES;
2967 if (result < 0)
2968 RETPUSHUNDEF;
2969 RETPUSHNO;
22865c03
GS		 2970 }
2971 else
cea2e8a9 2972 result = my_stat();
5ff3f7a4 2973#else
cea2e8a9 2974 result = my_stat();
5ff3f7a4 2975#endif
22865c03 2976 SPAGAIN;
a0d0e21e
LW		 2977 if (result < 0)
2978 RETPUSHUNDEF;
3280af22 2979 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2980 RETPUSHYES;
2981 RETPUSHNO;
2982}
2983
2984PP(pp_ftrexec)
2985{
9cad6237 2986 I32 result;
2a3ff820 2987 dSP;
fbb0b3b3 2988 STACKED_FTEST_CHECK;
5ff3f7a4 2989#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2991 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2992 if (result == 0)
2993 RETPUSHYES;
2994 if (result < 0)
2995 RETPUSHUNDEF;
2996 RETPUSHNO;
22865c03
GS		 2997 }
2998 else
cea2e8a9 2999 result = my_stat();
5ff3f7a4 3000#else
cea2e8a9 3001 result = my_stat();
5ff3f7a4 3002#endif
22865c03 3003 SPAGAIN;
a0d0e21e
LW		 3004 if (result < 0)
3005 RETPUSHUNDEF;
3280af22 3006 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3007 RETPUSHYES;
3008 RETPUSHNO;
3009}
3010
3011PP(pp_fteread)
3012{
9cad6237 3013 I32 result;
2a3ff820 3014 dSP;
fbb0b3b3 3015 STACKED_FTEST_CHECK;
5ff3f7a4 3016#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3017 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3018 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3019 if (result == 0)
3020 RETPUSHYES;
3021 if (result < 0)
3022 RETPUSHUNDEF;
3023 RETPUSHNO;
22865c03
GS		 3024 }
3025 else
cea2e8a9 3026 result = my_stat();
5ff3f7a4 3027#else
cea2e8a9 3028 result = my_stat();
5ff3f7a4 3029#endif
22865c03 3030 SPAGAIN;
a0d0e21e
LW		 3031 if (result < 0)
3032 RETPUSHUNDEF;
3280af22 3033 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3034 RETPUSHYES;
3035 RETPUSHNO;
3036}
3037
3038PP(pp_ftewrite)
3039{
9cad6237 3040 I32 result;
2a3ff820 3041 dSP;
fbb0b3b3 3042 STACKED_FTEST_CHECK;
5ff3f7a4 3043#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3044 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3046 if (result == 0)
3047 RETPUSHYES;
3048 if (result < 0)
3049 RETPUSHUNDEF;
3050 RETPUSHNO;
22865c03
GS		 3051 }
3052 else
cea2e8a9 3053 result = my_stat();
5ff3f7a4 3054#else
cea2e8a9 3055 result = my_stat();
5ff3f7a4 3056#endif
22865c03 3057 SPAGAIN;
a0d0e21e
LW		 3058 if (result < 0)
3059 RETPUSHUNDEF;
3280af22 3060 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3061 RETPUSHYES;
3062 RETPUSHNO;
3063}
3064
3065PP(pp_fteexec)
3066{
9cad6237 3067 I32 result;
2a3ff820 3068 dSP;
fbb0b3b3 3069 STACKED_FTEST_CHECK;
5ff3f7a4 3070#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3071 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3072 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3073 if (result == 0)
3074 RETPUSHYES;
3075 if (result < 0)
3076 RETPUSHUNDEF;
3077 RETPUSHNO;
22865c03
GS		 3078 }
3079 else
cea2e8a9 3080 result = my_stat();
5ff3f7a4 3081#else
cea2e8a9 3082 result = my_stat();
5ff3f7a4 3083#endif
22865c03 3084 SPAGAIN;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
3280af22 3087 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3088 RETPUSHYES;
3089 RETPUSHNO;
3090}
3091
3092PP(pp_ftis)
3093{
fbb0b3b3 3094 I32 result;
2a3ff820 3095 dSP;
fbb0b3b3
RGS		 3096 STACKED_FTEST_CHECK;
3097 result = my_stat();
3098 SPAGAIN;
a0d0e21e
LW		 3099 if (result < 0)
3100 RETPUSHUNDEF;
3101 RETPUSHYES;
3102}
3103
3104PP(pp_fteowned)
3105{
cea2e8a9 3106 return pp_ftrowned();
a0d0e21e
LW		 3107}
3108
3109PP(pp_ftrowned)
3110{
fbb0b3b3 3111 I32 result;
2a3ff820 3112 dSP;
fbb0b3b3
RGS		 3113 STACKED_FTEST_CHECK;
3114 result = my_stat();
3115 SPAGAIN;
a0d0e21e
LW		 3116 if (result < 0)
3117 RETPUSHUNDEF;
146174a9
CB		 3118 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3119 PL_euid : PL_uid) )
a0d0e21e
LW		 3120 RETPUSHYES;
3121 RETPUSHNO;
3122}
3123
3124PP(pp_ftzero)
3125{
fbb0b3b3 3126 I32 result;
2a3ff820 3127 dSP;
fbb0b3b3
RGS		 3128 STACKED_FTEST_CHECK;
3129 result = my_stat();
3130 SPAGAIN;
a0d0e21e
LW		 3131 if (result < 0)
3132 RETPUSHUNDEF;
146174a9 3133 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3134 RETPUSHYES;
3135 RETPUSHNO;
3136}
3137
3138PP(pp_ftsize)
3139{
fbb0b3b3 3140 I32 result;
2a3ff820 3141 dSP; dTARGET;
fbb0b3b3
RGS		 3142 STACKED_FTEST_CHECK;
3143 result = my_stat();
3144 SPAGAIN;
a0d0e21e
LW		 3145 if (result < 0)
3146 RETPUSHUNDEF;
146174a9
CB		 3147#if Off_t_size > IVSIZE
3148 PUSHn(PL_statcache.st_size);
3149#else
3280af22 3150 PUSHi(PL_statcache.st_size);
146174a9 3151#endif
a0d0e21e
LW		 3152 RETURN;
3153}
3154
3155PP(pp_ftmtime)
3156{
fbb0b3b3 3157 I32 result;
2a3ff820 3158 dSP; dTARGET;
fbb0b3b3
RGS		 3159 STACKED_FTEST_CHECK;
3160 result = my_stat();
3161 SPAGAIN;
a0d0e21e
LW		 3162 if (result < 0)
3163 RETPUSHUNDEF;
a80d47c2 3164 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3165 RETURN;
3166}
3167
3168PP(pp_ftatime)
3169{
fbb0b3b3 3170 I32 result;
2a3ff820 3171 dSP; dTARGET;
fbb0b3b3
RGS		 3172 STACKED_FTEST_CHECK;
3173 result = my_stat();
3174 SPAGAIN;
a0d0e21e
LW		 3175 if (result < 0)
3176 RETPUSHUNDEF;
a80d47c2 3177 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3178 RETURN;
3179}
3180
3181PP(pp_ftctime)
3182{
fbb0b3b3 3183 I32 result;
2a3ff820 3184 dSP; dTARGET;
fbb0b3b3
RGS		 3185 STACKED_FTEST_CHECK;
3186 result = my_stat();
3187 SPAGAIN;
a0d0e21e
LW		 3188 if (result < 0)
3189 RETPUSHUNDEF;
a80d47c2 3190 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3191 RETURN;
3192}
3193
3194PP(pp_ftsock)
3195{
fbb0b3b3 3196 I32 result;
2a3ff820 3197 dSP;
fbb0b3b3
RGS		 3198 STACKED_FTEST_CHECK;
3199 result = my_stat();
3200 SPAGAIN;
a0d0e21e
LW		 3201 if (result < 0)
3202 RETPUSHUNDEF;
3280af22 3203 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3204 RETPUSHYES;
3205 RETPUSHNO;
3206}
3207
3208PP(pp_ftchr)
3209{
fbb0b3b3 3210 I32 result;
2a3ff820 3211 dSP;
fbb0b3b3
RGS		 3212 STACKED_FTEST_CHECK;
3213 result = my_stat();
3214 SPAGAIN;
a0d0e21e
LW		 3215 if (result < 0)
3216 RETPUSHUNDEF;
3280af22 3217 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3218 RETPUSHYES;
3219 RETPUSHNO;
3220}
3221
3222PP(pp_ftblk)
3223{
fbb0b3b3 3224 I32 result;
2a3ff820 3225 dSP;
fbb0b3b3
RGS		 3226 STACKED_FTEST_CHECK;
3227 result = my_stat();
3228 SPAGAIN;
a0d0e21e
LW		 3229 if (result < 0)
3230 RETPUSHUNDEF;
3280af22 3231 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3232 RETPUSHYES;
3233 RETPUSHNO;
3234}
3235
3236PP(pp_ftfile)
3237{
fbb0b3b3 3238 I32 result;
2a3ff820 3239 dSP;
fbb0b3b3
RGS		 3240 STACKED_FTEST_CHECK;
3241 result = my_stat();
3242 SPAGAIN;
a0d0e21e
LW		 3243 if (result < 0)
3244 RETPUSHUNDEF;
3280af22 3245 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3246 RETPUSHYES;
3247 RETPUSHNO;
3248}
3249
3250PP(pp_ftdir)
3251{
fbb0b3b3 3252 I32 result;
2a3ff820 3253 dSP;
fbb0b3b3
RGS		 3254 STACKED_FTEST_CHECK;
3255 result = my_stat();
3256 SPAGAIN;
a0d0e21e
LW		 3257 if (result < 0)
3258 RETPUSHUNDEF;
3280af22 3259 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3260 RETPUSHYES;
3261 RETPUSHNO;
3262}
3263
3264PP(pp_ftpipe)
3265{
fbb0b3b3 3266 I32 result;
2a3ff820 3267 dSP;
fbb0b3b3
RGS		 3268 STACKED_FTEST_CHECK;
3269 result = my_stat();
3270 SPAGAIN;
a0d0e21e
LW		 3271 if (result < 0)
3272 RETPUSHUNDEF;
3280af22 3273 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3274 RETPUSHYES;
3275 RETPUSHNO;
3276}
3277
3278PP(pp_ftlink)
3279{
9cad6237 3280 I32 result = my_lstat();
2a3ff820 3281 dSP;
a0d0e21e
LW		 3282 if (result < 0)
3283 RETPUSHUNDEF;
3280af22 3284 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3285 RETPUSHYES;
3286 RETPUSHNO;
3287}
3288
3289PP(pp_ftsuid)
3290{
39644a26 3291 dSP;
a0d0e21e 3292#ifdef S_ISUID
fbb0b3b3
RGS		 3293 I32 result;
3294 STACKED_FTEST_CHECK;
3295 result = my_stat();
a0d0e21e
LW		 3296 SPAGAIN;
3297 if (result < 0)
3298 RETPUSHUNDEF;
3280af22 3299 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3300 RETPUSHYES;
3301#endif
3302 RETPUSHNO;
3303}
3304
3305PP(pp_ftsgid)
3306{
39644a26 3307 dSP;
a0d0e21e 3308#ifdef S_ISGID
fbb0b3b3
RGS		 3309 I32 result;
3310 STACKED_FTEST_CHECK;
3311 result = my_stat();
a0d0e21e
LW		 3312 SPAGAIN;
3313 if (result < 0)
3314 RETPUSHUNDEF;
3280af22 3315 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3316 RETPUSHYES;
3317#endif
3318 RETPUSHNO;
3319}
3320
3321PP(pp_ftsvtx)
3322{
39644a26 3323 dSP;
a0d0e21e 3324#ifdef S_ISVTX
fbb0b3b3
RGS		 3325 I32 result;
3326 STACKED_FTEST_CHECK;
3327 result = my_stat();
a0d0e21e
LW		 3328 SPAGAIN;
3329 if (result < 0)
3330 RETPUSHUNDEF;
3280af22 3331 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3332 RETPUSHYES;
3333#endif
3334 RETPUSHNO;
3335}
3336
3337PP(pp_fttty)
3338{
39644a26 3339 dSP;
a0d0e21e
LW		 3340 int fd;
3341 GV *gv;
7a5fd60d 3342 SV *tmpsv = Nullsv;
fb73857a 3343
fbb0b3b3
RGS		 3344 STACKED_FTEST_CHECK;
3345
533c011a 3346 if (PL_op->op_flags & OPf_REF)
146174a9 3347 gv = cGVOP_gv;
fb73857a 3348 else if (isGV(TOPs))
3349 gv = (GV*)POPs;
3350 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3351 gv = (GV*)SvRV(POPs);
a0d0e21e 3352 else
7a5fd60d 3353 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3354
a0d0e21e 3355 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3356 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3357 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3358 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3359 if (isDIGIT(*tmps))
3360 fd = atoi(tmps);
3361 else
3362 RETPUSHUNDEF;
3363 }
a0d0e21e
LW		 3364 else
3365 RETPUSHUNDEF;
6ad3d225 3366 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3367 RETPUSHYES;
3368 RETPUSHNO;
3369}
3370
16d20bd9
AD		 3371#if defined(atarist) /* this will work with atariST. Configure will
3372 make guesses for other systems. */
3373# define FILE_base(f) ((f)->_base)
3374# define FILE_ptr(f) ((f)->_ptr)
3375# define FILE_cnt(f) ((f)->_cnt)
3376# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3377#endif
3378
3379PP(pp_fttext)
3380{
39644a26 3381 dSP;
a0d0e21e
LW		 3382 I32 i;
3383 I32 len;
3384 I32 odd = 0;
3385 STDCHAR tbuf[512];
3386 register STDCHAR *s;
3387 register IO *io;
5f05dabc 3388 register SV *sv;
3389 GV *gv;
146174a9 3390 PerlIO *fp;
a0d0e21e 3391
fbb0b3b3
RGS		 3392 STACKED_FTEST_CHECK;
3393
533c011a 3394 if (PL_op->op_flags & OPf_REF)
146174a9 3395 gv = cGVOP_gv;
5f05dabc 3396 else if (isGV(TOPs))
3397 gv = (GV*)POPs;
3398 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3399 gv = (GV*)SvRV(POPs);
3400 else
3401 gv = Nullgv;
3402
3403 if (gv) {
a0d0e21e 3404 EXTEND(SP, 1);
3280af22
NIS		 3405 if (gv == PL_defgv) {
3406 if (PL_statgv)
3407 io = GvIO(PL_statgv);
a0d0e21e 3408 else {
3280af22 3409 sv = PL_statname;
a0d0e21e
LW		 3410 goto really_filename;
3411 }
3412 }
3413 else {
3280af22
NIS		 3414 PL_statgv = gv;
3415 PL_laststatval = -1;
c69006e4 3416 sv_setpvn(PL_statname, "", 0);
3280af22 3417 io = GvIO(PL_statgv);
a0d0e21e
LW		 3418 }
3419 if (io && IoIFP(io)) {
5f05dabc 3420 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3421 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3422 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3423 if (PL_laststatval < 0)
5f05dabc 3424 RETPUSHUNDEF;
9cbac4c7 3425 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3426 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3427 RETPUSHNO;
3428 else
3429 RETPUSHYES;
9cbac4c7 3430 }
a20bf0c3 3431 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3432 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3433 if (i != EOF)
760ac839 3434 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3435 }
a20bf0c3 3436 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3437 RETPUSHYES;
a20bf0c3
JH		 3438 len = PerlIO_get_bufsiz(IoIFP(io));
3439 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3440 /* sfio can have large buffers - limit to 512 */
3441 if (len > 512)
3442 len = 512;
a0d0e21e
LW		 3443 }
3444 else {
2dd78f96 3445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3446 gv = cGVOP_gv;
2dd78f96 3447 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3448 }
93189314 3449 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3450 RETPUSHUNDEF;
3451 }
3452 }
3453 else {
3454 sv = POPs;
5f05dabc 3455 really_filename:
3280af22 3456 PL_statgv = Nullgv;
5c9aa243 3457 PL_laststype = OP_STAT;
d5263905 3458 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3459 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3460 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3461 '\n'))
9014280d 3462 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3463 RETPUSHUNDEF;
3464 }
146174a9
CB		 3465 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3466 if (PL_laststatval < 0) {
3467 (void)PerlIO_close(fp);
5f05dabc 3468 RETPUSHUNDEF;
146174a9 3469 }
60382766 3470 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3471 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3472 (void)PerlIO_close(fp);
a0d0e21e 3473 if (len <= 0) {
533c011a 3474 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3475 RETPUSHNO; /* special case NFS directories */
3476 RETPUSHYES; /* null file is anything */
3477 }
3478 s = tbuf;
3479 }
3480
3481 /* now scan s to look for textiness */
4633a7c4 3482 /* XXX ASCII dependent code */
a0d0e21e 3483
146174a9
CB		 3484#if defined(DOSISH) || defined(USEMYBINMODE)
3485 /* ignore trailing ^Z on short files */
3486 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3487 --len;
3488#endif
3489
a0d0e21e
LW		 3490 for (i = 0; i < len; i++, s++) {
3491 if (!*s) { /* null never allowed in text */
3492 odd += len;
3493 break;
3494 }
9d116dd7 3495#ifdef EBCDIC
301e8125 3496 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3497 odd++;
3498#else
146174a9
CB		 3499 else if (*s & 128) {
3500#ifdef USE_LOCALE
2de3dbcc 3501 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3502 continue;
3503#endif
3504 /* utf8 characters don't count as odd */
fd400ab9 3505 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3506 int ulen = UTF8SKIP(s);
3507 if (ulen < len - i) {
3508 int j;
3509 for (j = 1; j < ulen; j++) {
fd400ab9 3510 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3511 goto not_utf8;
3512 }
3513 --ulen; /* loop does extra increment */
3514 s += ulen;
3515 i += ulen;
3516 continue;
3517 }
3518 }
3519 not_utf8:
3520 odd++;
146174a9 3521 }
a0d0e21e
LW		 3522 else if (*s < 32 &&
3523 *s != '\n' && *s != '\r' && *s != '\b' &&
3524 *s != '\t' && *s != '\f' && *s != 27)
3525 odd++;
9d116dd7 3526#endif
a0d0e21e
LW		 3527 }
3528
533c011a 3529 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3530 RETPUSHNO;
3531 else
3532 RETPUSHYES;
3533}
3534
3535PP(pp_ftbinary)
3536{
cea2e8a9 3537 return pp_fttext();
a0d0e21e
LW		 3538}
3539
3540/* File calls. */
3541
3542PP(pp_chdir)
3543{
39644a26 3544 dSP; dTARGET;
c4aca7d0 3545 const char *tmps = 0;
9a957fbc 3546 GV *gv = NULL;
a0d0e21e 3547
c4aca7d0 3548 if( MAXARG == 1 ) {
9a957fbc 3549 SV * const sv = POPs;
c4aca7d0
GA		 3550 if (SvTYPE(sv) == SVt_PVGV) {
3551 gv = (GV*)sv;
3552 }
3553 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3554 gv = (GV*)SvRV(sv);
3555 }
3556 else {
3557 tmps = SvPVx_nolen_const(sv);
3558 }
3559 }
35ae6b54 3560
c4aca7d0 3561 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3562 HV * const table = GvHVn(PL_envgv);
3563 SV **svp;
3564
3565 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3566 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
491527d0 3567#ifdef VMS
9a957fbc 3568 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
491527d0 3569#endif
35ae6b54
MS		 3570 )
3571 {
3572 if( MAXARG == 1 )
9014280d 3573 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3574 tmps = SvPV_nolen_const(*svp);
35ae6b54 3575 }
72f496dc 3576 else {
389ec635 3577 PUSHi(0);
b7ab37f8 3578 TAINT_PROPER("chdir");
389ec635
MS		 3579 RETURN;
3580 }
8ea155d1 3581 }
8ea155d1 3582
a0d0e21e 3583 TAINT_PROPER("chdir");
c4aca7d0
GA		 3584 if (gv) {
3585#ifdef HAS_FCHDIR
9a957fbc 3586 IO* const io = GvIO(gv);
c4aca7d0
GA		 3587 if (io) {
3588 if (IoIFP(io)) {
3589 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3590 }
3591 else if (IoDIRP(io)) {
3592#ifdef HAS_DIRFD
3593 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3594#else
0f1f2428 3595 DIE(aTHX_ PL_no_func, "dirfd");
c4aca7d0
GA		 3596#endif
3597 }
3598 else {
3599 PUSHi(0);
3600 }
3601 }
3602 else {
3603 PUSHi(0);
3604 }
3605#else
3606 DIE(aTHX_ PL_no_func, "fchdir");
3607#endif
3608 }
3609 else
3610 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3611#ifdef VMS
3612 /* Clear the DEFAULT element of ENV so we'll get the new value
3613 * in the future. */
6b88bc9c 3614 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3615#endif
a0d0e21e
LW		 3616 RETURN;
3617}
3618
3619PP(pp_chown)
3620{
a0d0e21e 3621#ifdef HAS_CHOWN
76ffd3b9
IZ		 3622 dSP; dMARK; dTARGET;
3623 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3624
a0d0e21e
LW		 3625 SP = MARK;
3626 PUSHi(value);
3627 RETURN;
3628#else
0322a713 3629 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3630#endif
3631}
3632
3633PP(pp_chroot)
3634{
a0d0e21e 3635#ifdef HAS_CHROOT
76ffd3b9 3636 dSP; dTARGET;
d05c1ba0 3637 char *tmps = POPpx;
a0d0e21e
LW		 3638 TAINT_PROPER("chroot");
3639 PUSHi( chroot(tmps) >= 0 );
3640 RETURN;
3641#else
cea2e8a9 3642 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3643#endif
3644}
3645
3646PP(pp_unlink)
3647{
39644a26 3648 dSP; dMARK; dTARGET;
a0d0e21e 3649 I32 value;
533c011a 3650 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3651 SP = MARK;
3652 PUSHi(value);
3653 RETURN;
3654}
3655
3656PP(pp_chmod)
3657{
39644a26 3658 dSP; dMARK; dTARGET;
a0d0e21e 3659 I32 value;
533c011a 3660 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3661 SP = MARK;
3662 PUSHi(value);
3663 RETURN;
3664}
3665
3666PP(pp_utime)
3667{
39644a26 3668 dSP; dMARK; dTARGET;
a0d0e21e 3669 I32 value;
533c011a 3670 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3671 SP = MARK;
3672 PUSHi(value);
3673 RETURN;
3674}
3675
3676PP(pp_rename)
3677{
39644a26 3678 dSP; dTARGET;
a0d0e21e 3679 int anum;
e62f0680
NC		 3680 const char *tmps2 = POPpconstx;
3681 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3682 TAINT_PROPER("rename");
3683#ifdef HAS_RENAME
baed7233 3684 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3685#else
6b88bc9c 3686 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3687 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3688 anum = 1;
3689 else {
3654eb6c 3690 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3691 (void)UNLINK(tmps2);
3692 if (!(anum = link(tmps, tmps2)))
3693 anum = UNLINK(tmps);
3694 }
a0d0e21e
LW		 3695 }
3696#endif
3697 SETi( anum >= 0 );
3698 RETURN;
3699}
3700
3701PP(pp_link)
3702{
a0d0e21e 3703#ifdef HAS_LINK
370f6000 3704 dSP; dTARGET;
e62f0680
NC		 3705 const char *tmps2 = POPpconstx;
3706 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3707 TAINT_PROPER("link");
146174a9 3708 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3709 RETURN;
a0d0e21e 3710#else
0322a713 3711 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3712#endif
a0d0e21e
LW		 3713}
3714
3715PP(pp_symlink)
3716{
a0d0e21e 3717#ifdef HAS_SYMLINK
9cad6237 3718 dSP; dTARGET;
83003860
NC		 3719 const char *tmps2 = POPpconstx;
3720 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3721 TAINT_PROPER("symlink");
3722 SETi( symlink(tmps, tmps2) >= 0 );
3723 RETURN;
3724#else
cea2e8a9 3725 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3726#endif
3727}
3728
3729PP(pp_readlink)
3730{
76ffd3b9 3731 dSP;
a0d0e21e 3732#ifdef HAS_SYMLINK
76ffd3b9 3733 dTARGET;
10516c54 3734 const char *tmps;
46fc3d4c 3735 char buf[MAXPATHLEN];
a0d0e21e 3736 int len;
46fc3d4c 3737
fb73857a 3738#ifndef INCOMPLETE_TAINTS
3739 TAINT;
3740#endif
10516c54 3741 tmps = POPpconstx;
97dcea33 3742 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3743 EXTEND(SP, 1);
3744 if (len < 0)
3745 RETPUSHUNDEF;
3746 PUSHp(buf, len);
3747 RETURN;
3748#else
3749 EXTEND(SP, 1);
3750 RETSETUNDEF; /* just pretend it's a normal file */
3751#endif
3752}
3753
3754#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3755STATIC int
b464bac0 3756S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3757{
b464bac0 3758 char * const save_filename = filename;
1e422769 3759 char *cmdline;
3760 char *s;
760ac839 3761 PerlIO *myfp;
1e422769 3762 int anum = 1;
a0d0e21e 3763
a02a5408 3764 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
1e422769 3765 strcpy(cmdline, cmd);
3766 strcat(cmdline, " ");
3767 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3768 *s++ = '\\';
3769 *s++ = *filename++;
3770 }
3771 strcpy(s, " 2>&1");
6ad3d225 3772 myfp = PerlProc_popen(cmdline, "r");
1e422769 3773 Safefree(cmdline);
3774
a0d0e21e 3775 if (myfp) {
1e422769 3776 SV *tmpsv = sv_newmortal();
6b88bc9c 3777 /* Need to save/restore 'PL_rs' ?? */
760ac839 3778 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3779 (void)PerlProc_pclose(myfp);
a0d0e21e 3780 if (s != Nullch) {
1e422769 3781 int e;
3782 for (e = 1;
a0d0e21e 3783#ifdef HAS_SYS_ERRLIST
1e422769 3784 e <= sys_nerr
3785#endif
3786 ; e++)
3787 {
3788 /* you don't see this */
3789 char *errmsg =
3790#ifdef HAS_SYS_ERRLIST
3791 sys_errlist[e]
a0d0e21e 3792#else
1e422769 3793 strerror(e)
a0d0e21e 3794#endif
1e422769 3795 ;
3796 if (!errmsg)
3797 break;
3798 if (instr(s, errmsg)) {
3799 SETERRNO(e,0);
3800 return 0;
3801 }
a0d0e21e 3802 }
748a9306 3803 SETERRNO(0,0);
a0d0e21e
LW		 3804#ifndef EACCES
3805#define EACCES EPERM
3806#endif
1e422769 3807 if (instr(s, "cannot make"))
93189314 3808 SETERRNO(EEXIST,RMS_FEX);
1e422769 3809 else if (instr(s, "existing file"))
93189314 3810 SETERRNO(EEXIST,RMS_FEX);
1e422769 3811 else if (instr(s, "ile exists"))
93189314 3812 SETERRNO(EEXIST,RMS_FEX);
1e422769 3813 else if (instr(s, "non-exist"))
93189314 3814 SETERRNO(ENOENT,RMS_FNF);
1e422769 3815 else if (instr(s, "does not exist"))
93189314 3816 SETERRNO(ENOENT,RMS_FNF);
1e422769 3817 else if (instr(s, "not empty"))
93189314 3818 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3819 else if (instr(s, "cannot access"))
93189314 3820 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3821 else
93189314 3822 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3823 return 0;
3824 }
3825 else { /* some mkdirs return no failure indication */
6b88bc9c 3826 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3827 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3828 anum = !anum;
3829 if (anum)
748a9306 3830 SETERRNO(0,0);
a0d0e21e 3831 else
93189314 3832 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3833 }
3834 return anum;
3835 }
3836 else
3837 return 0;
3838}
3839#endif
3840
0c54f65b
RGS		 3841/* This macro removes trailing slashes from a directory name.
3842 * Different operating and file systems take differently to
3843 * trailing slashes. According to POSIX 1003.1 1996 Edition
3844 * any number of trailing slashes should be allowed.
3845 * Thusly we snip them away so that even non-conforming
3846 * systems are happy.
3847 * We should probably do this "filtering" for all
3848 * the functions that expect (potentially) directory names:
3849 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3850 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3851
5c144d81 3852#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3853 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3854 do { \
3855 (len)--; \
3856 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3857 (tmps) = savepvn((tmps), (len)); \
3858 (copy) = TRUE; \
3859 }
3860
a0d0e21e
LW		 3861PP(pp_mkdir)
3862{
39644a26 3863 dSP; dTARGET;
5a211162 3864 int mode;
a0d0e21e
LW		 3865#ifndef HAS_MKDIR
3866 int oldumask;
3867#endif
df25ddba 3868 STRLEN len;
5c144d81 3869 const char *tmps;
df25ddba 3870 bool copy = FALSE;
5a211162
GS		 3871
3872 if (MAXARG > 1)
3873 mode = POPi;
3874 else
3875 mode = 0777;
3876
0c54f65b 3877 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3878
3879 TAINT_PROPER("mkdir");
3880#ifdef HAS_MKDIR
6ad3d225 3881 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3882#else
3883 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3884 oldumask = PerlLIO_umask(0);
3885 PerlLIO_umask(oldumask);
3886 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3887#endif
df25ddba
JH		 3888 if (copy)
3889 Safefree(tmps);
a0d0e21e
LW		 3890 RETURN;
3891}
3892
3893PP(pp_rmdir)
3894{
39644a26 3895 dSP; dTARGET;
0c54f65b 3896 STRLEN len;
5c144d81 3897 const char *tmps;
0c54f65b 3898 bool copy = FALSE;
a0d0e21e 3899
0c54f65b 3900 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3901 TAINT_PROPER("rmdir");
3902#ifdef HAS_RMDIR
0c54f65b 3903 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3904#else
0c54f65b 3905 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3906#endif
0c54f65b
RGS		 3907 if (copy)
3908 Safefree(tmps);
a0d0e21e
LW		 3909 RETURN;
3910}
3911
3912/* Directory calls. */
3913
3914PP(pp_open_dir)
3915{
a0d0e21e 3916#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3917 dSP;
10516c54 3918 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3919 GV *gv = (GV*)POPs;
3920 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3921
3922 if (!io)
3923 goto nope;
3924
3925 if (IoDIRP(io))
6ad3d225
GS		 3926 PerlDir_close(IoDIRP(io));
3927 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3928 goto nope;
3929
3930 RETPUSHYES;
3931nope:
3932 if (!errno)
93189314 3933 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3934 RETPUSHUNDEF;
3935#else
cea2e8a9 3936 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3937#endif
3938}
3939
3940PP(pp_readdir)
3941{
34b7f128
AMS		 3942#if !defined(Direntry_t) || !defined(HAS_READDIR)
3943 DIE(aTHX_ PL_no_dir_func, "readdir");
3944#else
fd8cd3a3 3945#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3946 Direntry_t *readdir (DIR *);
a0d0e21e 3947#endif
34b7f128
AMS		 3948 dSP;
3949
3950 SV *sv;
f54cb97a 3951 const I32 gimme = GIMME;
34b7f128 3952 GV *gv = (GV *)POPs;
a0d0e21e 3953 register Direntry_t *dp;
a0d0e21e
LW		 3954 register IO *io = GvIOn(gv);
3955
3956 if (!io || !IoDIRP(io))
3957 goto nope;
3958
34b7f128
AMS		 3959 do {
3960 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3961 if (!dp)
3962 break;
a0d0e21e 3963#ifdef DIRNAMLEN
34b7f128 3964 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3965#else
34b7f128 3966 sv = newSVpv(dp->d_name, 0);
fb73857a 3967#endif
3968#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3969 if (!(IoFLAGS(io) & IOf_UNTAINT))
3970 SvTAINTED_on(sv);
a0d0e21e 3971#endif
34b7f128 3972 XPUSHs(sv_2mortal(sv));
a0d0e21e 3973 }
34b7f128
AMS		 3974 while (gimme == G_ARRAY);
3975
3976 if (!dp && gimme != G_ARRAY)
3977 goto nope;
3978
a0d0e21e
LW		 3979 RETURN;
3980
3981nope:
3982 if (!errno)
93189314 3983 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3984 if (GIMME == G_ARRAY)
3985 RETURN;
3986 else
3987 RETPUSHUNDEF;
a0d0e21e
LW		 3988#endif
3989}
3990
3991PP(pp_telldir)
3992{
a0d0e21e 3993#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3994 dVAR; dSP; dTARGET;
968dcd91
JH		 3995 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3996 /* XXX netbsd still seemed to.
3997 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3998 --JHI 1999-Feb-02 */
3999# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 4000 long telldir (DIR *);
dfe9444c 4001# endif
a0d0e21e
LW		 4002 GV *gv = (GV*)POPs;
4003 register IO *io = GvIOn(gv);
4004
4005 if (!io || !IoDIRP(io))
4006 goto nope;
4007
6ad3d225 4008 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 4009 RETURN;
4010nope:
4011 if (!errno)
93189314 4012 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4013 RETPUSHUNDEF;
4014#else
cea2e8a9 4015 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 4016#endif
4017}
4018
4019PP(pp_seekdir)
4020{
a0d0e21e 4021#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 4022 dSP;
a0d0e21e
LW		 4023 long along = POPl;
4024 GV *gv = (GV*)POPs;
4025 register IO *io = GvIOn(gv);
4026
4027 if (!io || !IoDIRP(io))
4028 goto nope;
4029
6ad3d225 4030 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4031
4032 RETPUSHYES;
4033nope:
4034 if (!errno)
93189314 4035 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4036 RETPUSHUNDEF;
4037#else
cea2e8a9 4038 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4039#endif
4040}
4041
4042PP(pp_rewinddir)
4043{
a0d0e21e 4044#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4045 dSP;
a0d0e21e
LW		 4046 GV *gv = (GV*)POPs;
4047 register IO *io = GvIOn(gv);
4048
4049 if (!io || !IoDIRP(io))
4050 goto nope;
4051
6ad3d225 4052 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4053 RETPUSHYES;
4054nope:
4055 if (!errno)
93189314 4056 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4057 RETPUSHUNDEF;
4058#else
cea2e8a9 4059 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4060#endif
4061}
4062
4063PP(pp_closedir)
4064{
a0d0e21e 4065#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4066 dSP;
a0d0e21e
LW		 4067 GV *gv = (GV*)POPs;
4068 register IO *io = GvIOn(gv);
4069
4070 if (!io || !IoDIRP(io))
4071 goto nope;
4072
4073#ifdef VOID_CLOSEDIR
6ad3d225 4074 PerlDir_close(IoDIRP(io));
a0d0e21e 4075#else
6ad3d225 4076 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4077 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4078 goto nope;
748a9306 4079 }
a0d0e21e
LW		 4080#endif
4081 IoDIRP(io) = 0;
4082
4083 RETPUSHYES;
4084nope:
4085 if (!errno)
93189314 4086 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4087 RETPUSHUNDEF;
4088#else
cea2e8a9 4089 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4090#endif
4091}
4092
4093/* Process control. */
4094
4095PP(pp_fork)
4096{
44a8e56a 4097#ifdef HAS_FORK
39644a26 4098 dSP; dTARGET;
761237fe 4099 Pid_t childpid;
a0d0e21e
LW		 4100 GV *tmpgv;
4101
4102 EXTEND(SP, 1);
45bc9206 4103 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4104 childpid = PerlProc_fork();
a0d0e21e
LW		 4105 if (childpid < 0)
4106 RETSETUNDEF;
4107 if (!childpid) {
306196c3
MS		 4108 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4109 SvREADONLY_off(GvSV(tmpgv));
146174a9 4110 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4111 SvREADONLY_on(GvSV(tmpgv));
4112 }
4d76a344
RGS		 4113#ifdef THREADS_HAVE_PIDS
4114 PL_ppid = (IV)getppid();
4115#endif
3280af22 4116 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4117 }
4118 PUSHi(childpid);
4119 RETURN;
4120#else
146174a9 4121# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4122 dSP; dTARGET;
146174a9
CB		 4123 Pid_t childpid;
4124
4125 EXTEND(SP, 1);
4126 PERL_FLUSHALL_FOR_CHILD;
4127 childpid = PerlProc_fork();
60fa28ff
GS		 4128 if (childpid == -1)
4129 RETSETUNDEF;
146174a9
CB		 4130 PUSHi(childpid);
4131 RETURN;
4132# else
0322a713 4133 DIE(aTHX_ PL_no_func, "fork");
146174a9 4134# endif
a0d0e21e
LW		 4135#endif
4136}
4137
4138PP(pp_wait)
4139{
301e8125 4140#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4141 dSP; dTARGET;
761237fe 4142 Pid_t childpid;
a0d0e21e 4143 int argflags;
a0d0e21e 4144
4ffa73a3
JH		 4145 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4146 childpid = wait4pid(-1, &argflags, 0);
4147 else {
4148 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4149 errno == EINTR) {
4150 PERL_ASYNC_CHECK();
4151 }
0a0ada86 4152 }
68a29c53
GS		 4153# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4154 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4155 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4156# else
f86702cc 4157 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4158# endif
44a8e56a 4159 XPUSHi(childpid);
a0d0e21e
LW		 4160 RETURN;
4161#else
0322a713 4162 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4163#endif
4164}
4165
4166PP(pp_waitpid)
4167{
301e8125 4168#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4169 dSP; dTARGET;
2ec0bfb3
SG		 4170 Pid_t pid;
4171 Pid_t result;
a0d0e21e
LW		 4172 int optype;
4173 int argflags;
a0d0e21e 4174
a0d0e21e 4175 optype = POPi;
2ec0bfb3 4176 pid = TOPi;
4ffa73a3 4177 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4178 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4179 else {
2ec0bfb3 4180 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4181 errno == EINTR) {
4182 PERL_ASYNC_CHECK();
4183 }
0a0ada86 4184 }
68a29c53
GS		 4185# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4186 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4187 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4188# else
2ec0bfb3 4189 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4190# endif
2ec0bfb3 4191 SETi(result);
a0d0e21e
LW		 4192 RETURN;
4193#else
0322a713 4194 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4195#endif
4196}
4197
4198PP(pp_system)
4199{
39644a26 4200 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4201 I32 value;
76ffd3b9 4202 int result;
a0d0e21e 4203
bbd7eb8a
RD		 4204 if (PL_tainting) {
4205 TAINT_ENV();
4206 while (++MARK <= SP) {
10516c54 4207 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4208 if (PL_tainted)
bbd7eb8a
RD		 4209 break;
4210 }
4211 MARK = ORIGMARK;
5a445156 4212 TAINT_PROPER("system");
a0d0e21e 4213 }
45bc9206 4214 PERL_FLUSHALL_FOR_CHILD;
273b0206 4215#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4216 {
eb160463
GS		 4217 Pid_t childpid;
4218 int pp[2];
27da23d5 4219 I32 did_pipes = 0;
eb160463
GS		 4220
4221 if (PerlProc_pipe(pp) >= 0)
4222 did_pipes = 1;
4223 while ((childpid = PerlProc_fork()) == -1) {
4224 if (errno != EAGAIN) {
4225 value = -1;
4226 SP = ORIGMARK;
4227 PUSHi(value);
4228 if (did_pipes) {
4229 PerlLIO_close(pp[0]);
4230 PerlLIO_close(pp[1]);
4231 }
4232 RETURN;
4233 }
4234 sleep(5);
4235 }
4236 if (childpid > 0) {
4237 Sigsave_t ihand,qhand; /* place to save signals during system() */
4238 int status;
4239
4240 if (did_pipes)
4241 PerlLIO_close(pp[1]);
64ca3a65 4242#ifndef PERL_MICRO
eb160463
GS		 4243 rsignal_save(SIGINT, SIG_IGN, &ihand);
4244 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4245#endif
eb160463
GS		 4246 do {
4247 result = wait4pid(childpid, &status, 0);
4248 } while (result == -1 && errno == EINTR);
64ca3a65 4249#ifndef PERL_MICRO
eb160463
GS		 4250 (void)rsignal_restore(SIGINT, &ihand);
4251 (void)rsignal_restore(SIGQUIT, &qhand);
4252#endif
4253 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4254 do_execfree(); /* free any memory child malloced on fork */
4255 SP = ORIGMARK;
4256 if (did_pipes) {
4257 int errkid;
4258 int n = 0, n1;
4259
4260 while (n < sizeof(int)) {
4261 n1 = PerlLIO_read(pp[0],
4262 (void*)(((char*)&errkid)+n),
4263 (sizeof(int)) - n);
4264 if (n1 <= 0)
4265 break;
4266 n += n1;
4267 }
4268 PerlLIO_close(pp[0]);
4269 if (n) { /* Error */
4270 if (n != sizeof(int))
4271 DIE(aTHX_ "panic: kid popen errno read");
4272 errno = errkid; /* Propagate errno from kid */
4273 STATUS_CURRENT = -1;
4274 }
4275 }
4276 PUSHi(STATUS_CURRENT);
4277 RETURN;
4278 }
4279 if (did_pipes) {
4280 PerlLIO_close(pp[0]);
d5a9bfb0 4281#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4282 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4283#endif
eb160463 4284 }
e0a1f643
JH		 4285 if (PL_op->op_flags & OPf_STACKED) {
4286 SV *really = *++MARK;
4287 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4288 }
4289 else if (SP - MARK != 1)
4290 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4291 else {
8c074e2a 4292 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4293 }
4294 PerlProc__exit(-1);
d5a9bfb0 4295 }
c3293030 4296#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4297 PL_statusvalue = 0;
4298 result = 0;
911d147d 4299 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4300 SV *really = *++MARK;
27da23d5 4301# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4302 value = (I32)do_aspawn(really, MARK, SP);
4303# else
c5be433b 4304 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4305# endif
a0d0e21e 4306 }
54725af6 4307 else if (SP - MARK != 1) {
27da23d5 4308# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4309 value = (I32)do_aspawn(Nullsv, MARK, SP);
4310# else
c5be433b 4311 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4312# endif
4313 }
a0d0e21e 4314 else {
8c074e2a 4315 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4316 }
922b1888
GS		 4317 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4318 result = 1;
f86702cc 4319 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4320 do_execfree();
4321 SP = ORIGMARK;
922b1888 4322 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4323#endif /* !FORK or VMS */
4324 RETURN;
4325}
4326
4327PP(pp_exec)
4328{
39644a26 4329 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4330 I32 value;
4331
bbd7eb8a
RD		 4332 if (PL_tainting) {
4333 TAINT_ENV();
4334 while (++MARK <= SP) {
10516c54 4335 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4336 if (PL_tainted)
bbd7eb8a
RD		 4337 break;
4338 }
4339 MARK = ORIGMARK;
5a445156 4340 TAINT_PROPER("exec");
bbd7eb8a 4341 }
45bc9206 4342 PERL_FLUSHALL_FOR_CHILD;
533c011a 4343 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4344 SV *really = *++MARK;
4345 value = (I32)do_aexec(really, MARK, SP);
4346 }
4347 else if (SP - MARK != 1)
4348#ifdef VMS
4349 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4350#else
092bebab
JH		 4351# ifdef __OPEN_VM
4352 {
c5be433b 4353 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4354 value = 0;
4355 }
4356# else
a0d0e21e 4357 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4358# endif
a0d0e21e
LW		 4359#endif
4360 else {
a0d0e21e 4361#ifdef VMS
8c074e2a 4362 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4363#else
092bebab 4364# ifdef __OPEN_VM
8c074e2a 4365 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4366 value = 0;
4367# else
8c074e2a 4368 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4369# endif
a0d0e21e
LW		 4370#endif
4371 }
146174a9 4372
a0d0e21e
LW		 4373 SP = ORIGMARK;
4374 PUSHi(value);
4375 RETURN;
4376}
4377
4378PP(pp_kill)
4379{
9cad6237 4380#ifdef HAS_KILL
39644a26 4381 dSP; dMARK; dTARGET;
a0d0e21e 4382 I32 value;
533c011a 4383 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4384 SP = MARK;
4385 PUSHi(value);
4386 RETURN;
4387#else
0322a713 4388 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4389#endif
4390}
4391
4392PP(pp_getppid)
4393{
4394#ifdef HAS_GETPPID
39644a26 4395 dSP; dTARGET;
4d76a344 4396# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4397 if (PL_ppid != 1 && getppid() == 1)
4398 /* maybe the parent process has died. Refresh ppid cache */
4399 PL_ppid = 1;
4d76a344
RGS		 4400 XPUSHi( PL_ppid );
4401# else
a0d0e21e 4402 XPUSHi( getppid() );
4d76a344 4403# endif
a0d0e21e
LW		 4404 RETURN;
4405#else
cea2e8a9 4406 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4407#endif
4408}
4409
4410PP(pp_getpgrp)
4411{
4412#ifdef HAS_GETPGRP
39644a26 4413 dSP; dTARGET;
d8a83dd3 4414 Pid_t pid;
9853a804 4415 Pid_t pgrp;
a0d0e21e
LW		 4416
4417 if (MAXARG < 1)
4418 pid = 0;
4419 else
4420 pid = SvIVx(POPs);
c3293030 4421#ifdef BSD_GETPGRP
9853a804 4422 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4423#else
146174a9 4424 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4425 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4426 pgrp = getpgrp();
a0d0e21e 4427#endif
9853a804 4428 XPUSHi(pgrp);
a0d0e21e
LW		 4429 RETURN;
4430#else
cea2e8a9 4431 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4432#endif
4433}
4434
4435PP(pp_setpgrp)
4436{
4437#ifdef HAS_SETPGRP
39644a26 4438 dSP; dTARGET;
d8a83dd3
JH		 4439 Pid_t pgrp;
4440 Pid_t pid;
a0d0e21e
LW		 4441 if (MAXARG < 2) {
4442 pgrp = 0;
4443 pid = 0;
4444 }
4445 else {
4446 pgrp = POPi;
4447 pid = TOPi;
4448 }
4449
4450 TAINT_PROPER("setpgrp");
c3293030
IZ		 4451#ifdef BSD_SETPGRP
4452 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4453#else
146174a9
CB		 4454 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4455 || (pid != 0 && pid != PerlProc_getpid()))
4456 {
4457 DIE(aTHX_ "setpgrp can't take arguments");
4458 }
a0d0e21e
LW		 4459 SETi( setpgrp() >= 0 );
4460#endif /* USE_BSDPGRP */
4461 RETURN;
4462#else
cea2e8a9 4463 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4464#endif
4465}
4466
4467PP(pp_getpriority)
4468{
a0d0e21e 4469#ifdef HAS_GETPRIORITY
9cad6237 4470 dSP; dTARGET;
d05c1ba0
JH		 4471 int who = POPi;
4472 int which = TOPi;
a0d0e21e
LW		 4473 SETi( getpriority(which, who) );
4474 RETURN;
4475#else
cea2e8a9 4476 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4477#endif
4478}
4479
4480PP(pp_setpriority)
4481{
a0d0e21e 4482#ifdef HAS_SETPRIORITY
9cad6237 4483 dSP; dTARGET;
d05c1ba0
JH		 4484 int niceval = POPi;
4485 int who = POPi;
4486 int which = TOPi;
a0d0e21e
LW		 4487 TAINT_PROPER("setpriority");
4488 SETi( setpriority(which, who, niceval) >= 0 );
4489 RETURN;
4490#else
cea2e8a9 4491 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4492#endif
4493}
4494
4495/* Time calls. */
4496
4497PP(pp_time)
4498{
39644a26 4499 dSP; dTARGET;
cbdc8872 4500#ifdef BIG_TIME
4501 XPUSHn( time(Null(Time_t*)) );
4502#else
a0d0e21e 4503 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4504#endif
a0d0e21e
LW		 4505 RETURN;
4506}
4507
a0d0e21e
LW		 4508PP(pp_tms)
4509{
9cad6237 4510#ifdef HAS_TIMES
39644a26 4511 dSP;
a0d0e21e 4512 EXTEND(SP, 4);
a0d0e21e 4513#ifndef VMS
3280af22 4514 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4515#else
6b88bc9c 4516 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4517 /* struct tms, though same data */
4518 /* is returned. */
a0d0e21e
LW		 4519#endif
4520
5311654c 4521 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4522 if (GIMME == G_ARRAY) {
5311654c
JH		 4523 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4524 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4525 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4526 }
4527 RETURN;
9cad6237 4528#else
2f42fcb0
JH		 4529# ifdef PERL_MICRO
4530 dSP;
4531 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4532 EXTEND(SP, 4);
4533 if (GIMME == G_ARRAY) {
4534 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4535 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4536 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4537 }
4538 RETURN;
4539# else
9cad6237 4540 DIE(aTHX_ "times not implemented");
2f42fcb0 4541# endif
55497cff 4542#endif /* HAS_TIMES */
a0d0e21e
LW		 4543}
4544
4545PP(pp_localtime)
4546{
cea2e8a9 4547 return pp_gmtime();
a0d0e21e
LW		 4548}
4549
a4323dee 4550#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4551static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4552{
4553 auto time_t T;
4554 auto struct tm *P;
4555
4556 /* No workarounds in the valid range */
4557 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4558 return (localtime (tp));
4559
4560 /* This edge case is to workaround the undefined behaviour, where the
4561 * TIMEZONE makes the time go beyond the defined range.
4562 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4563 * If there is a negative offset in TZ, like MET-1METDST, some broken
4564 * implementations of localtime () (like AIX 5.2) barf with bogus
4565 * return values:
4566 * 0x7fffffff gmtime 2038-01-19 03:14:07
4567 * 0x7fffffff localtime 1901-12-13 21:45:51
4568 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4569 * 0x3c19137f gmtime 2001-12-13 20:45:51
4570 * 0x3c19137f localtime 2001-12-13 21:45:51
4571 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4572 * Given that legal timezones are typically between GMT-12 and GMT+12
4573 * we turn back the clock 23 hours before calling the localtime
4574 * function, and add those to the return value. This will never cause
3574fba9 4575 * day wrapping problems, since the edge case is Tue Jan *19*
a4323dee
MB		 4576 */
4577 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4578 P = localtime (&T);
4579 P->tm_hour += 23;
4580 if (P->tm_hour >= 24) {
4581 P->tm_hour -= 24;
3574fba9
CW		 4582 P->tm_mday++; /* 18 -> 19 */
4583 P->tm_wday++; /* Mon -> Tue */
4584 P->tm_yday++; /* 18 -> 19 */
a4323dee
MB		 4585 }
4586 return (P);
4587} /* S_my_localtime */
4588#endif
4589
a0d0e21e
LW		 4590PP(pp_gmtime)
4591{
39644a26 4592 dSP;
a0d0e21e 4593 Time_t when;
bfed75c6 4594 const struct tm *tmbuf;
27da23d5
JH		 4595 static const char * const dayname[] =
4596 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4597 static const char * const monname[] =
4598 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4599 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4600
4601 if (MAXARG < 1)
4602 (void)time(&when);
4603 else
cbdc8872 4604#ifdef BIG_TIME
4605 when = (Time_t)SvNVx(POPs);
4606#else
a0d0e21e 4607 when = (Time_t)SvIVx(POPs);
cbdc8872 4608#endif
a0d0e21e 4609
533c011a 4610 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4611#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4612 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4613#else
a0d0e21e 4614 tmbuf = localtime(&when);
a4323dee 4615#endif
a0d0e21e
LW		 4616 else
4617 tmbuf = gmtime(&when);
4618
a0d0e21e 4619 if (GIMME != G_ARRAY) {
46fc3d4c 4620 SV *tsv;
9a5ff6d9
AB		 4621 EXTEND(SP, 1);
4622 EXTEND_MORTAL(1);
a0d0e21e
LW		 4623 if (!tmbuf)
4624 RETPUSHUNDEF;
be28567c 4625 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4626 dayname[tmbuf->tm_wday],
4627 monname[tmbuf->tm_mon],
be28567c
GS		 4628 tmbuf->tm_mday,
4629 tmbuf->tm_hour,
4630 tmbuf->tm_min,
4631 tmbuf->tm_sec,
4632 tmbuf->tm_year + 1900);
46fc3d4c 4633 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4634 }
4635 else if (tmbuf) {
9a5ff6d9
AB		 4636 EXTEND(SP, 9);
4637 EXTEND_MORTAL(9);
4638 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4639 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4640 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4641 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4642 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4643 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4644 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4645 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4646 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4647 }
4648 RETURN;
4649}
4650
4651PP(pp_alarm)
4652{
9cad6237 4653#ifdef HAS_ALARM
39644a26 4654 dSP; dTARGET;
a0d0e21e 4655 int anum;
a0d0e21e
LW		 4656 anum = POPi;
4657 anum = alarm((unsigned int)anum);
4658 EXTEND(SP, 1);
4659 if (anum < 0)
4660 RETPUSHUNDEF;
c6419e06 4661 PUSHi(anum);
a0d0e21e
LW		 4662 RETURN;
4663#else
0322a713 4664 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4665#endif
4666}
4667
4668PP(pp_sleep)
4669{
39644a26 4670 dSP; dTARGET;
a0d0e21e
LW		 4671 I32 duration;
4672 Time_t lasttime;
4673 Time_t when;
4674
4675 (void)time(&lasttime);
4676 if (MAXARG < 1)
76e3520e 4677 PerlProc_pause();
a0d0e21e
LW		 4678 else {
4679 duration = POPi;
76e3520e 4680 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4681 }
4682 (void)time(&when);
4683 XPUSHi(when - lasttime);
4684 RETURN;
4685}
4686
4687/* Shared memory. */
4688
4689PP(pp_shmget)
4690{
cea2e8a9 4691 return pp_semget();
a0d0e21e
LW		 4692}
4693
4694PP(pp_shmctl)
4695{
cea2e8a9 4696 return pp_semctl();
a0d0e21e
LW		 4697}
4698
4699PP(pp_shmread)
4700{
cea2e8a9 4701 return pp_shmwrite();
a0d0e21e
LW		 4702}
4703
4704PP(pp_shmwrite)
4705{
4706#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4707 dSP; dMARK; dTARGET;
533c011a 4708 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4709 SP = MARK;
4710 PUSHi(value);
4711 RETURN;
4712#else
cea2e8a9 4713 return pp_semget();
a0d0e21e
LW		 4714#endif
4715}
4716
4717/* Message passing. */
4718
4719PP(pp_msgget)
4720{
cea2e8a9 4721 return pp_semget();
a0d0e21e
LW		 4722}
4723
4724PP(pp_msgctl)
4725{
cea2e8a9 4726 return pp_semctl();
a0d0e21e
LW		 4727}
4728
4729PP(pp_msgsnd)
4730{
4731#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4732 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4733 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4734 SP = MARK;
4735 PUSHi(value);
4736 RETURN;
4737#else
cea2e8a9 4738 return pp_semget();
a0d0e21e
LW		 4739#endif
4740}
4741
4742PP(pp_msgrcv)
4743{
4744#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4745 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4746 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4747 SP = MARK;
4748 PUSHi(value);
4749 RETURN;
4750#else
cea2e8a9 4751 return pp_semget();
a0d0e21e
LW		 4752#endif
4753}
4754
4755/* Semaphores. */
4756
4757PP(pp_semget)
4758{
4759#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4760 dSP; dMARK; dTARGET;
533c011a 4761 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4762 SP = MARK;
4763 if (anum == -1)
4764 RETPUSHUNDEF;
4765 PUSHi(anum);
4766 RETURN;
4767#else
cea2e8a9 4768 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4769#endif
4770}
4771
4772PP(pp_semctl)
4773{
4774#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4775 dSP; dMARK; dTARGET;
533c011a 4776 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4777 SP = MARK;
4778 if (anum == -1)
4779 RETSETUNDEF;
4780 if (anum != 0) {
4781 PUSHi(anum);
4782 }
4783 else {
8903cb82 4784 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4785 }
4786 RETURN;
4787#else
cea2e8a9 4788 return pp_semget();
a0d0e21e
LW		 4789#endif
4790}
4791
4792PP(pp_semop)
4793{
4794#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4795 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4796 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4797 SP = MARK;
4798 PUSHi(value);
4799 RETURN;
4800#else
cea2e8a9 4801 return pp_semget();
a0d0e21e
LW		 4802#endif
4803}
4804
4805/* Get system info. */
4806
4807PP(pp_ghbyname)
4808{
693762b4 4809#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4810 return pp_ghostent();
a0d0e21e 4811#else
cea2e8a9 4812 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4813#endif
4814}
4815
4816PP(pp_ghbyaddr)
4817{
693762b4 4818#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4819 return pp_ghostent();
a0d0e21e 4820#else
cea2e8a9 4821 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4822#endif
4823}
4824
4825PP(pp_ghostent)
4826{
693762b4 4827#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4828 dSP;
533c011a 4829 I32 which = PL_op->op_type;
a0d0e21e
LW		 4830 register char **elem;
4831 register SV *sv;
dc45a647 4832#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4833 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4834 struct hostent *gethostbyname(Netdb_name_t);
4835 struct hostent *gethostent(void);
a0d0e21e
LW		 4836#endif
4837 struct hostent *hent;
4838 unsigned long len;
4839
4840 EXTEND(SP, 10);
edd309b7 4841 if (which == OP_GHBYNAME) {
dc45a647 4842#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4843 char* name = POPpbytex;
4844 hent = PerlSock_gethostbyname(name);
dc45a647 4845#else
cea2e8a9 4846 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4847#endif
edd309b7 4848 }
a0d0e21e 4849 else if (which == OP_GHBYADDR) {
dc45a647 4850#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4851 int addrtype = POPi;
748a9306 4852 SV *addrsv = POPs;
a0d0e21e 4853 STRLEN addrlen;
595ae481 4854 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4855
4599a1de 4856 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4857#else
cea2e8a9 4858 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4859#endif
a0d0e21e
LW		 4860 }
4861 else
4862#ifdef HAS_GETHOSTENT
6ad3d225 4863 hent = PerlSock_gethostent();
a0d0e21e 4864#else
cea2e8a9 4865 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4866#endif
4867
4868#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4869 if (!hent) {
4870#ifdef USE_REENTRANT_API
4871# ifdef USE_GETHOSTENT_ERRNO
4872 h_errno = PL_reentrant_buffer->_gethostent_errno;
4873# endif
4874#endif
4875 STATUS_NATIVE_SET(h_errno);
4876 }
a0d0e21e
LW		 4877#endif
4878
4879 if (GIMME != G_ARRAY) {
4880 PUSHs(sv = sv_newmortal());
4881 if (hent) {
4882 if (which == OP_GHBYNAME) {
fd0af264 4883 if (hent->h_addr)
4884 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4885 }
4886 else
4887 sv_setpv(sv, (char*)hent->h_name);
4888 }
4889 RETURN;
4890 }
4891
4892 if (hent) {
3280af22 4893 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4894 sv_setpv(sv, (char*)hent->h_name);
3280af22 4895 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4896 for (elem = hent->h_aliases; elem && *elem; elem++) {
4897 sv_catpv(sv, *elem);
4898 if (elem[1])
4899 sv_catpvn(sv, " ", 1);
4900 }
3280af22 4901 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4902 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4904 len = hent->h_length;
1e422769 4905 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4906#ifdef h_addr
4907 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4908 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4909 sv_setpvn(sv, *elem, len);
4910 }
4911#else
6b88bc9c 4912 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4913 if (hent->h_addr)
4914 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4915#endif /* h_addr */
4916 }
4917 RETURN;
4918#else
cea2e8a9 4919 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4920#endif
4921}
4922
4923PP(pp_gnbyname)
4924{
693762b4 4925#ifdef HAS_GETNETBYNAME
cea2e8a9 4926 return pp_gnetent();
a0d0e21e 4927#else
cea2e8a9 4928 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4929#endif
4930}
4931
4932PP(pp_gnbyaddr)
4933{
693762b4 4934#ifdef HAS_GETNETBYADDR
cea2e8a9 4935 return pp_gnetent();
a0d0e21e 4936#else
cea2e8a9 4937 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4938#endif
4939}
4940
4941PP(pp_gnetent)
4942{
693762b4 4943#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4944 dSP;
533c011a 4945 I32 which = PL_op->op_type;
a0d0e21e
LW		 4946 register char **elem;
4947 register SV *sv;
dc45a647 4948#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4949 struct netent *getnetbyaddr(Netdb_net_t, int);
4950 struct netent *getnetbyname(Netdb_name_t);
4951 struct netent *getnetent(void);
8ac85365 4952#endif
a0d0e21e
LW		 4953 struct netent *nent;
4954
edd309b7 4955 if (which == OP_GNBYNAME){
dc45a647 4956#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4957 char *name = POPpbytex;
4958 nent = PerlSock_getnetbyname(name);
dc45a647 4959#else
cea2e8a9 4960 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4961#endif
edd309b7 4962 }
a0d0e21e 4963 else if (which == OP_GNBYADDR) {
dc45a647 4964#ifdef HAS_GETNETBYADDR
a0d0e21e 4965 int addrtype = POPi;
3bb7c1b4 4966 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4967 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4968#else
cea2e8a9 4969 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4970#endif
a0d0e21e
LW		 4971 }
4972 else
dc45a647 4973#ifdef HAS_GETNETENT
76e3520e 4974 nent = PerlSock_getnetent();
dc45a647 4975#else
cea2e8a9 4976 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4977#endif
a0d0e21e 4978
10bc17b6
JH		 4979#ifdef HOST_NOT_FOUND
4980 if (!nent) {
4981#ifdef USE_REENTRANT_API
4982# ifdef USE_GETNETENT_ERRNO
4983 h_errno = PL_reentrant_buffer->_getnetent_errno;
4984# endif
4985#endif
4986 STATUS_NATIVE_SET(h_errno);
4987 }
4988#endif
4989
a0d0e21e
LW		 4990 EXTEND(SP, 4);
4991 if (GIMME != G_ARRAY) {
4992 PUSHs(sv = sv_newmortal());
4993 if (nent) {
4994 if (which == OP_GNBYNAME)
1e422769 4995 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4996 else
4997 sv_setpv(sv, nent->n_name);
4998 }
4999 RETURN;
5000 }
5001
5002 if (nent) {
3280af22 5003 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5004 sv_setpv(sv, nent->n_name);
3280af22 5005 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5006 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5007 sv_catpv(sv, *elem);
5008 if (elem[1])
5009 sv_catpvn(sv, " ", 1);
5010 }
3280af22 5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5012 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 5013 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5014 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 5015 }
5016
5017 RETURN;
5018#else
cea2e8a9 5019 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 5020#endif
5021}
5022
5023PP(pp_gpbyname)
5024{
693762b4 5025#ifdef HAS_GETPROTOBYNAME
cea2e8a9 5026 return pp_gprotoent();
a0d0e21e 5027#else
cea2e8a9 5028 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 5029#endif
5030}
5031
5032PP(pp_gpbynumber)
5033{
693762b4 5034#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 5035 return pp_gprotoent();
a0d0e21e 5036#else
cea2e8a9 5037 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 5038#endif
5039}
5040
5041PP(pp_gprotoent)
5042{
693762b4 5043#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 5044 dSP;
533c011a 5045 I32 which = PL_op->op_type;
a0d0e21e 5046 register char **elem;
301e8125 5047 register SV *sv;
dc45a647 5048#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5049 struct protoent *getprotobyname(Netdb_name_t);
5050 struct protoent *getprotobynumber(int);
5051 struct protoent *getprotoent(void);
8ac85365 5052#endif
a0d0e21e
LW		 5053 struct protoent *pent;
5054
edd309b7 5055 if (which == OP_GPBYNAME) {
e5c9fcd0 5056#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 5057 char* name = POPpbytex;
5058 pent = PerlSock_getprotobyname(name);
e5c9fcd0 5059#else
cea2e8a9 5060 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 5061#endif
edd309b7
JH		 5062 }
5063 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 5064#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 5065 int number = POPi;
5066 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 5067#else
edd309b7 5068 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 5069#endif
edd309b7 5070 }
a0d0e21e 5071 else
e5c9fcd0 5072#ifdef HAS_GETPROTOENT
6ad3d225 5073 pent = PerlSock_getprotoent();
e5c9fcd0 5074#else
cea2e8a9 5075 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5076#endif
a0d0e21e
LW		 5077
5078 EXTEND(SP, 3);
5079 if (GIMME != G_ARRAY) {
5080 PUSHs(sv = sv_newmortal());
5081 if (pent) {
5082 if (which == OP_GPBYNAME)
1e422769 5083 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5084 else
5085 sv_setpv(sv, pent->p_name);
5086 }
5087 RETURN;
5088 }
5089
5090 if (pent) {
3280af22 5091 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5092 sv_setpv(sv, pent->p_name);
3280af22 5093 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5094 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5095 sv_catpv(sv, *elem);
5096 if (elem[1])
5097 sv_catpvn(sv, " ", 1);
5098 }
3280af22 5099 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5100 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5101 }
5102
5103 RETURN;
5104#else
cea2e8a9 5105 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5106#endif
5107}
5108
5109PP(pp_gsbyname)
5110{
9ec75305 5111#ifdef HAS_GETSERVBYNAME
cea2e8a9 5112 return pp_gservent();
a0d0e21e 5113#else
cea2e8a9 5114 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5115#endif
5116}
5117
5118PP(pp_gsbyport)
5119{
9ec75305 5120#ifdef HAS_GETSERVBYPORT
cea2e8a9 5121 return pp_gservent();
a0d0e21e 5122#else
cea2e8a9 5123 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5124#endif
5125}
5126
5127PP(pp_gservent)
5128{
693762b4 5129#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5130 dSP;
533c011a 5131 I32 which = PL_op->op_type;
a0d0e21e
LW		 5132 register char **elem;
5133 register SV *sv;
dc45a647 5134#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5135 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5136 struct servent *getservbyport(int, Netdb_name_t);
5137 struct servent *getservent(void);
8ac85365 5138#endif
a0d0e21e
LW		 5139 struct servent *sent;
5140
5141 if (which == OP_GSBYNAME) {
dc45a647 5142#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5143 char *proto = POPpbytex;
5144 char *name = POPpbytex;
a0d0e21e
LW		 5145
5146 if (proto && !*proto)
5147 proto = Nullch;
5148
6ad3d225 5149 sent = PerlSock_getservbyname(name, proto);
dc45a647 5150#else
cea2e8a9 5151 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5152#endif
a0d0e21e
LW		 5153 }
5154 else if (which == OP_GSBYPORT) {
dc45a647 5155#ifdef HAS_GETSERVBYPORT
42e0c139 5156 char *proto = POPpbytex;
eb160463 5157 unsigned short port = (unsigned short)POPu;
a0d0e21e 5158
2b872cca
SR		 5159 if (proto && !*proto)
5160 proto = Nullch;
5161
36477c24 5162#ifdef HAS_HTONS
6ad3d225 5163 port = PerlSock_htons(port);
36477c24 5164#endif
6ad3d225 5165 sent = PerlSock_getservbyport(port, proto);
dc45a647 5166#else
cea2e8a9 5167 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5168#endif
a0d0e21e
LW		 5169 }
5170 else
e5c9fcd0 5171#ifdef HAS_GETSERVENT
6ad3d225 5172 sent = PerlSock_getservent();
e5c9fcd0 5173#else
cea2e8a9 5174 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5175#endif
a0d0e21e
LW		 5176
5177 EXTEND(SP, 4);
5178 if (GIMME != G_ARRAY) {
5179 PUSHs(sv = sv_newmortal());
5180 if (sent) {
5181 if (which == OP_GSBYNAME) {
5182#ifdef HAS_NTOHS
6ad3d225 5183 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5184#else
1e422769 5185 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5186#endif
5187 }
5188 else
5189 sv_setpv(sv, sent->s_name);
5190 }
5191 RETURN;
5192 }
5193
5194 if (sent) {
3280af22 5195 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5196 sv_setpv(sv, sent->s_name);
3280af22 5197 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5198 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5199 sv_catpv(sv, *elem);
5200 if (elem[1])
5201 sv_catpvn(sv, " ", 1);
5202 }
3280af22 5203 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5204#ifdef HAS_NTOHS
76e3520e 5205 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5206#else
1e422769 5207 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5208#endif
3280af22 5209 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5210 sv_setpv(sv, sent->s_proto);
5211 }
5212
5213 RETURN;
5214#else
cea2e8a9 5215 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5216#endif
5217}
5218
5219PP(pp_shostent)
5220{
693762b4 5221#ifdef HAS_SETHOSTENT
9cad6237 5222 dSP;
76e3520e 5223 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5224 RETSETYES;
5225#else
cea2e8a9 5226 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5227#endif
5228}
5229
5230PP(pp_snetent)
5231{
693762b4 5232#ifdef HAS_SETNETENT
9cad6237 5233 dSP;
76e3520e 5234 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5235 RETSETYES;
5236#else
cea2e8a9 5237 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5238#endif
5239}
5240
5241PP(pp_sprotoent)
5242{
693762b4 5243#ifdef HAS_SETPROTOENT
9cad6237 5244 dSP;
76e3520e 5245 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5246 RETSETYES;
5247#else
cea2e8a9 5248 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5249#endif
5250}
5251
5252PP(pp_sservent)
5253{
693762b4 5254#ifdef HAS_SETSERVENT
9cad6237 5255 dSP;
76e3520e 5256 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5257 RETSETYES;
5258#else
cea2e8a9 5259 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5260#endif
5261}
5262
5263PP(pp_ehostent)
5264{
693762b4 5265#ifdef HAS_ENDHOSTENT
9cad6237 5266 dSP;
76e3520e 5267 PerlSock_endhostent();
924508f0 5268 EXTEND(SP,1);
a0d0e21e
LW		 5269 RETPUSHYES;
5270#else
cea2e8a9 5271 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5272#endif
5273}
5274
5275PP(pp_enetent)
5276{
693762b4 5277#ifdef HAS_ENDNETENT
9cad6237 5278 dSP;
76e3520e 5279 PerlSock_endnetent();
924508f0 5280 EXTEND(SP,1);
a0d0e21e
LW		 5281 RETPUSHYES;
5282#else
cea2e8a9 5283 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5284#endif
5285}
5286
5287PP(pp_eprotoent)
5288{
693762b4 5289#ifdef HAS_ENDPROTOENT
9cad6237 5290 dSP;
76e3520e 5291 PerlSock_endprotoent();
924508f0 5292 EXTEND(SP,1);
a0d0e21e
LW		 5293 RETPUSHYES;
5294#else
cea2e8a9 5295 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5296#endif
5297}
5298
5299PP(pp_eservent)
5300{
693762b4 5301#ifdef HAS_ENDSERVENT
9cad6237 5302 dSP;
76e3520e 5303 PerlSock_endservent();
924508f0 5304 EXTEND(SP,1);
a0d0e21e
LW		 5305 RETPUSHYES;
5306#else
cea2e8a9 5307 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5308#endif
5309}
5310
5311PP(pp_gpwnam)
5312{
5313#ifdef HAS_PASSWD
cea2e8a9 5314 return pp_gpwent();
a0d0e21e 5315#else
cea2e8a9 5316 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5317#endif
5318}
5319
5320PP(pp_gpwuid)
5321{
5322#ifdef HAS_PASSWD
cea2e8a9 5323 return pp_gpwent();
a0d0e21e 5324#else
cea2e8a9 5325 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5326#endif
5327}
5328
5329PP(pp_gpwent)
5330{
0994c4d0 5331#ifdef HAS_PASSWD
9cad6237 5332 dSP;
533c011a 5333 I32 which = PL_op->op_type;
a0d0e21e 5334 register SV *sv;
e3aefe8d 5335 struct passwd *pwent = NULL;
301e8125 5336 /*
bcf53261
JH		 5337 * We currently support only the SysV getsp* shadow password interface.
5338 * The interface is declared in <shadow.h> and often one needs to link
5339 * with -lsecurity or some such.
5340 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5341 * (and SCO?)
5342 *
5343 * AIX getpwnam() is clever enough to return the encrypted password
5344 * only if the caller (euid?) is root.
5345 *
e549f1c5 5346 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5347 * seem to contain more than one interface for accessing the shadow
5348 * password databases, possibly for compatibility reasons.
3813c136 5349 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5350 * are much more complicated, but also very similar to each other.
5351 *
5352 * <sys/types.h>
5353 * <sys/security.h>
5354 * <prot.h>
5355 * struct pr_passwd *getprpw*();
5356 * The password is in
3813c136
JH		 5357 * char getprpw*(...).ufld.fd_encrypt[]
5358 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5359 *
5360 * <sys/types.h>
5361 * <sys/security.h>
5362 * <prot.h>
5363 * struct es_passwd *getespw*();
5364 * The password is in
5365 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5366 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5367 *
e1920a95 5368 * <userpw.h> (AIX)
e549f1c5
JH		 5369 * struct userpw *getuserpw();
5370 * The password is in
5371 * char *(getuserpw(...)).spw_upw_passwd
5372 * (but the de facto standard getpwnam() should work okay)
5373 *
3813c136 5374 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5375 *
5376 * In HP-UX for getprpw*() the manual page claims that one should include
5377 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5378 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5379 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5380 *
5381 * Note that <sys/security.h> is already probed for, but currently
5382 * it is only included in special cases.
301e8125 5383 *
bcf53261
JH		 5384 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5385 * be preferred interface, even though also the getprpw*() interface
5386 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5387 * One also needs to call set_auth_parameters() in main() before
5388 * doing anything else, whether one is using getespw*() or getprpw*().
5389 *
5390 * Note that accessing the shadow databases can be magnitudes
5391 * slower than accessing the standard databases.
bcf53261
JH		 5392 *
5393 * --jhi
5394 */
a0d0e21e 5395
9e5f0c48
JH		 5396# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5397 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5398 * the pw_comment is left uninitialized. */
5399 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5400# endif
5401
e3aefe8d
JH		 5402 switch (which) {
5403 case OP_GPWNAM:
edd309b7
JH		 5404 {
5405 char* name = POPpbytex;
5406 pwent = getpwnam(name);
5407 }
5408 break;
e3aefe8d 5409 case OP_GPWUID:
edd309b7
JH		 5410 {
5411 Uid_t uid = POPi;
5412 pwent = getpwuid(uid);
5413 }
e3aefe8d
JH		 5414 break;
5415 case OP_GPWENT:
1883634f 5416# ifdef HAS_GETPWENT
e3aefe8d 5417 pwent = getpwent();
faea9016
IRC		 5418#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5419 if (pwent) pwent = getpwnam(pwent->pw_name);
5420#endif
1883634f 5421# else
a45d1c96 5422 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5423# endif
e3aefe8d
JH		 5424 break;
5425 }
8c0bfa08 5426
a0d0e21e
LW		 5427 EXTEND(SP, 10);
5428 if (GIMME != G_ARRAY) {
5429 PUSHs(sv = sv_newmortal());
5430 if (pwent) {
5431 if (which == OP_GPWNAM)
1883634f 5432# if Uid_t_sign <= 0
1e422769 5433 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5434# else
23dcd6c8 5435 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5436# endif
a0d0e21e
LW		 5437 else
5438 sv_setpv(sv, pwent->pw_name);
5439 }
5440 RETURN;
5441 }
5442
5443 if (pwent) {
3280af22 5444 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5445 sv_setpv(sv, pwent->pw_name);
6ee623d5 5446
3280af22 5447 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5448 SvPOK_off(sv);
5449 /* If we have getspnam(), we try to dig up the shadow
5450 * password. If we are underprivileged, the shadow
5451 * interface will set the errno to EACCES or similar,
5452 * and return a null pointer. If this happens, we will
5453 * use the dummy password (usually "*" or "x") from the
5454 * standard password database.
5455 *
5456 * In theory we could skip the shadow call completely
5457 * if euid != 0 but in practice we cannot know which
5458 * security measures are guarding the shadow databases
5459 * on a random platform.
5460 *
5461 * Resist the urge to use additional shadow interfaces.
5462 * Divert the urge to writing an extension instead.
5463 *
5464 * --jhi */
e549f1c5
JH		 5465 /* Some AIX setups falsely(?) detect some getspnam(), which
5466 * has a different API than the Solaris/IRIX one. */
5467# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5468 {
5469 struct spwd *spwent;
5470 int saverrno; /* Save and restore errno so that
5471 * underprivileged attempts seem
5472 * to have never made the unsccessful
5473 * attempt to retrieve the shadow password. */
5474
5475 saverrno = errno;
5476 spwent = getspnam(pwent->pw_name);
5477 errno = saverrno;
5478 if (spwent && spwent->sp_pwdp)
5479 sv_setpv(sv, spwent->sp_pwdp);
5480 }
f1066039 5481# endif
e020c87d 5482# ifdef PWPASSWD
3813c136
JH		 5483 if (!SvPOK(sv)) /* Use the standard password, then. */
5484 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5485# endif
3813c136 5486
1883634f 5487# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5488 /* passwd is tainted because user himself can diddle with it.
5489 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5490 SvTAINTED_on(sv);
1883634f 5491# endif
6ee623d5 5492
3280af22 5493 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5494# if Uid_t_sign <= 0
1e422769 5495 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5496# else
23dcd6c8 5497 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5498# endif
6ee623d5 5499
3280af22 5500 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5501# if Uid_t_sign <= 0
1e422769 5502 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5503# else
23dcd6c8 5504 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5505# endif
3813c136
JH		 5506 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5507 * because of the poor interface of the Perl getpw*(),
5508 * not because there's some standard/convention saying so.
5509 * A better interface would have been to return a hash,
5510 * but we are accursed by our history, alas. --jhi. */
3280af22 5511 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5512# ifdef PWCHANGE
1e422769 5513 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5514# else
1883634f
JH		 5515# ifdef PWQUOTA
5516 sv_setiv(sv, (IV)pwent->pw_quota);
5517# else
a1757be1 5518# ifdef PWAGE
a0d0e21e 5519 sv_setpv(sv, pwent->pw_age);
a1757be1 5520# endif
6ee623d5
GS		 5521# endif
5522# endif
6ee623d5 5523
3813c136
JH		 5524 /* pw_class and pw_comment are mutually exclusive--.
5525 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5526 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5527# ifdef PWCLASS
a0d0e21e 5528 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5529# else
5530# ifdef PWCOMMENT
a0d0e21e 5531 sv_setpv(sv, pwent->pw_comment);
1883634f 5532# endif
6ee623d5 5533# endif
6ee623d5 5534
3280af22 5535 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5536# ifdef PWGECOS
a0d0e21e 5537 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5538# endif
5539# ifndef INCOMPLETE_TAINTS
d2719217 5540 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5541 SvTAINTED_on(sv);
1883634f 5542# endif
6ee623d5 5543
3280af22 5544 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5545 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5546
3280af22 5547 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5548 sv_setpv(sv, pwent->pw_shell);
1883634f 5549# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5550 /* pw_shell is tainted because user himself can diddle with it. */
5551 SvTAINTED_on(sv);
1883634f 5552# endif
6ee623d5 5553
1883634f 5554# ifdef PWEXPIRE
6b88bc9c 5555 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5556 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5557# endif
a0d0e21e
LW		 5558 }
5559 RETURN;
5560#else
cea2e8a9 5561 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5562#endif
5563}
5564
5565PP(pp_spwent)
5566{
d493b042 5567#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5568 dSP;
a0d0e21e
LW		 5569 setpwent();
5570 RETPUSHYES;
5571#else
cea2e8a9 5572 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5573#endif
5574}
5575
5576PP(pp_epwent)
5577{
28e8609d 5578#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5579 dSP;
a0d0e21e
LW		 5580 endpwent();
5581 RETPUSHYES;
5582#else
cea2e8a9 5583 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5584#endif
5585}
5586
5587PP(pp_ggrnam)
5588{
5589#ifdef HAS_GROUP
cea2e8a9 5590 return pp_ggrent();
a0d0e21e 5591#else
cea2e8a9 5592 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5593#endif
5594}
5595
5596PP(pp_ggrgid)
5597{
5598#ifdef HAS_GROUP
cea2e8a9 5599 return pp_ggrent();
a0d0e21e 5600#else
cea2e8a9 5601 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5602#endif
5603}
5604
5605PP(pp_ggrent)
5606{
0994c4d0 5607#ifdef HAS_GROUP
9cad6237 5608 dSP;
533c011a 5609 I32 which = PL_op->op_type;
a0d0e21e
LW		 5610 register char **elem;
5611 register SV *sv;
5612 struct group *grent;
5613
edd309b7
JH		 5614 if (which == OP_GGRNAM) {
5615 char* name = POPpbytex;
5616 grent = (struct group *)getgrnam(name);
5617 }
5618 else if (which == OP_GGRGID) {
5619 Gid_t gid = POPi;
5620 grent = (struct group *)getgrgid(gid);
5621 }
a0d0e21e 5622 else
0994c4d0 5623#ifdef HAS_GETGRENT
a0d0e21e 5624 grent = (struct group *)getgrent();
0994c4d0
JH		 5625#else
5626 DIE(aTHX_ PL_no_func, "getgrent");
5627#endif
a0d0e21e
LW		 5628
5629 EXTEND(SP, 4);
5630 if (GIMME != G_ARRAY) {
5631 PUSHs(sv = sv_newmortal());
5632 if (grent) {
5633 if (which == OP_GGRNAM)
1e422769 5634 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5635 else
5636 sv_setpv(sv, grent->gr_name);
5637 }
5638 RETURN;
5639 }
5640
5641 if (grent) {
3280af22 5642 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5643 sv_setpv(sv, grent->gr_name);
28e8609d 5644
3280af22 5645 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5646#ifdef GRPASSWD
a0d0e21e 5647 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5648#endif
5649
3280af22 5650 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5651 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5652
5b56e7c5 5653#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5654 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5655 /* In UNICOS/mk (_CRAYMPP) the multithreading
5656 * versions (getgrnam_r, getgrgid_r)
5657 * seem to return an illegal pointer
5658 * as the group members list, gr_mem.
5659 * getgrent() doesn't even have a _r version
5660 * but the gr_mem is poisonous anyway.
5661 * So yes, you cannot get the list of group
5662 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5663 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5664 sv_catpv(sv, *elem);
5665 if (elem[1])
5666 sv_catpvn(sv, " ", 1);
5667 }
3d7e8424 5668#endif
a0d0e21e
LW		 5669 }
5670
5671 RETURN;
5672#else
cea2e8a9 5673 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5674#endif
5675}
5676
5677PP(pp_sgrent)
5678{
28e8609d 5679#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5680 dSP;
a0d0e21e
LW		 5681 setgrent();
5682 RETPUSHYES;
5683#else
cea2e8a9 5684 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5685#endif
5686}
5687
5688PP(pp_egrent)
5689{
28e8609d 5690#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5691 dSP;
a0d0e21e
LW		 5692 endgrent();
5693 RETPUSHYES;
5694#else
cea2e8a9 5695 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5696#endif
5697}
5698
5699PP(pp_getlogin)
5700{
a0d0e21e 5701#ifdef HAS_GETLOGIN
9cad6237 5702 dSP; dTARGET;
a0d0e21e
LW		 5703 char *tmps;
5704 EXTEND(SP, 1);
76e3520e 5705 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5706 RETPUSHUNDEF;
5707 PUSHp(tmps, strlen(tmps));
5708 RETURN;
5709#else
cea2e8a9 5710 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5711#endif
5712}
5713
5714/* Miscellaneous. */
5715
5716PP(pp_syscall)
5717{
d2719217 5718#ifdef HAS_SYSCALL
39644a26 5719 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5720 register I32 items = SP - MARK;
5721 unsigned long a[20];
5722 register I32 i = 0;
5723 I32 retval = -1;
5724
3280af22 5725 if (PL_tainting) {
a0d0e21e 5726 while (++MARK <= SP) {
bbce6d69 5727 if (SvTAINTED(*MARK)) {
5728 TAINT;
5729 break;
5730 }
a0d0e21e
LW		 5731 }
5732 MARK = ORIGMARK;
5733 TAINT_PROPER("syscall");
5734 }
5735
5736 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5737 * or where sizeof(long) != sizeof(char*). But such machines will
5738 * not likely have syscall implemented either, so who cares?
5739 */
5740 while (++MARK <= SP) {
5741 if (SvNIOK(*MARK) || !i)
5742 a[i++] = SvIV(*MARK);
3280af22 5743 else if (*MARK == &PL_sv_undef)
748a9306 5744 a[i++] = 0;
301e8125 5745 else
8b6b16e7 5746 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5747 if (i > 15)
5748 break;
5749 }
5750 switch (items) {
5751 default:
cea2e8a9 5752 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5753 case 0:
cea2e8a9 5754 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5755 case 1:
5756 retval = syscall(a[0]);
5757 break;
5758 case 2:
5759 retval = syscall(a[0],a[1]);
5760 break;
5761 case 3:
5762 retval = syscall(a[0],a[1],a[2]);
5763 break;
5764 case 4:
5765 retval = syscall(a[0],a[1],a[2],a[3]);
5766 break;
5767 case 5:
5768 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5769 break;
5770 case 6:
5771 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5772 break;
5773 case 7:
5774 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5775 break;
5776 case 8:
5777 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5778 break;
5779#ifdef atarist
5780 case 9:
5781 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5782 break;
5783 case 10:
5784 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5785 break;
5786 case 11:
5787 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5788 a[10]);
5789 break;
5790 case 12:
5791 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5792 a[10],a[11]);
5793 break;
5794 case 13:
5795 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5796 a[10],a[11],a[12]);
5797 break;
5798 case 14:
5799 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5800 a[10],a[11],a[12],a[13]);
5801 break;
5802#endif /* atarist */
5803 }
5804 SP = ORIGMARK;
5805 PUSHi(retval);
5806 RETURN;
5807#else
cea2e8a9 5808 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5809#endif
5810}
5811
ff68c719 5812#ifdef FCNTL_EMULATE_FLOCK
301e8125 5813
ff68c719 5814/* XXX Emulate flock() with fcntl().
5815 What's really needed is a good file locking module.
5816*/
5817
cea2e8a9
GS		 5818static int
5819fcntl_emulate_flock(int fd, int operation)
ff68c719 5820{
5821 struct flock flock;
301e8125 5822
ff68c719 5823 switch (operation & ~LOCK_NB) {
5824 case LOCK_SH:
5825 flock.l_type = F_RDLCK;
5826 break;
5827 case LOCK_EX:
5828 flock.l_type = F_WRLCK;
5829 break;
5830 case LOCK_UN:
5831 flock.l_type = F_UNLCK;
5832 break;
5833 default:
5834 errno = EINVAL;
5835 return -1;
5836 }
5837 flock.l_whence = SEEK_SET;
d9b3e12d 5838 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5839
ff68c719 5840 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5841}
5842
5843#endif /* FCNTL_EMULATE_FLOCK */
5844
5845#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5846
5847/* XXX Emulate flock() with lockf(). This is just to increase
5848 portability of scripts. The calls are not completely
5849 interchangeable. What's really needed is a good file
5850 locking module.
5851*/
5852
76c32331 5853/* The lockf() constants might have been defined in <unistd.h>.
5854 Unfortunately, <unistd.h> causes troubles on some mixed
5855 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5856
5857 Further, the lockf() constants aren't POSIX, so they might not be
5858 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5859 just stick in the SVID values and be done with it. Sigh.
5860*/
5861
5862# ifndef F_ULOCK
5863# define F_ULOCK 0 /* Unlock a previously locked region */
5864# endif
5865# ifndef F_LOCK
5866# define F_LOCK 1 /* Lock a region for exclusive use */
5867# endif
5868# ifndef F_TLOCK
5869# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5870# endif
5871# ifndef F_TEST
5872# define F_TEST 3 /* Test a region for other processes locks */
5873# endif
5874
cea2e8a9
GS		 5875static int
5876lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5877{
5878 int i;
84902520
TB		 5879 int save_errno;
5880 Off_t pos;
5881
5882 /* flock locks entire file so for lockf we need to do the same */
5883 save_errno = errno;
6ad3d225 5884 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5885 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5886 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5887 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5888 errno = save_errno;
5889
16d20bd9
AD		 5890 switch (operation) {
5891
5892 /* LOCK_SH - get a shared lock */
5893 case LOCK_SH:
5894 /* LOCK_EX - get an exclusive lock */
5895 case LOCK_EX:
5896 i = lockf (fd, F_LOCK, 0);
5897 break;
5898
5899 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5900 case LOCK_SH|LOCK_NB:
5901 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5902 case LOCK_EX|LOCK_NB:
5903 i = lockf (fd, F_TLOCK, 0);
5904 if (i == -1)
5905 if ((errno == EAGAIN) || (errno == EACCES))
5906 errno = EWOULDBLOCK;
5907 break;
5908
ff68c719 5909 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5910 case LOCK_UN:
ff68c719 5911 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5912 i = lockf (fd, F_ULOCK, 0);
5913 break;
5914
5915 /* Default - can't decipher operation */
5916 default:
5917 i = -1;
5918 errno = EINVAL;
5919 break;
5920 }
84902520
TB		 5921
5922 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5923 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5924
16d20bd9
AD		 5925 return (i);
5926}
ff68c719 5927
5928#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5929
5930/*
5931 * Local variables:
5932 * c-indentation-style: bsd
5933 * c-basic-offset: 4
5934 * indent-tabs-mode: t
5935 * End:
5936 *
37442d52
RGS		 5937 * ex: set ts=8 sts=4 sw=4 noet:
5938 */
Unnamed repository; edit this file 'description' to name the repository.