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More consting, and DRY leads to shrinking object code
[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 89#elif defined (VMS) && defined (my_getpwent)
9fa802f3 90 struct passwd *Perl_my_getpwent (pTHX);
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";
2fbb330f 342 fp = PerlProc_popen(tmps, 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 }
2fbb330f 381 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
aa689395 382 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 383 }
384 else {
37038d91 385 STATUS_NATIVE_CHILD_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 }
c3bdd826 514 DIE(aTHX_ Nullch);
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 573 tmps = SvPV_const(sv, len);
2fbb330f 574 ok = do_openn(gv, 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
4189264e 1151 PUSHi(nfound);
a0d0e21e 1152 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1153 value = (NV)(timebuf.tv_sec) +
1154 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1155 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1156 sv_setnv(sv, value);
1157 }
1158 RETURN;
1159#else
cea2e8a9 1160 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1161#endif
1162}
1163
4633a7c4 1164void
864dbfa3 1165Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1166{
1167 if (gv)
1168 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1169 if (PL_defoutgv)
1170 SvREFCNT_dec(PL_defoutgv);
1171 PL_defoutgv = gv;
4633a7c4
LW		 1172}
1173
a0d0e21e
LW		 1174PP(pp_select)
1175{
39644a26 1176 dSP; dTARGET;
1df70142 1177 GV *egv;
4633a7c4
LW		 1178 HV *hv;
1179
1df70142 1180 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1181
3280af22 1182 egv = GvEGV(PL_defoutgv);
4633a7c4 1183 if (!egv)
3280af22 1184 egv = PL_defoutgv;
4633a7c4
LW		 1185 hv = GvSTASH(egv);
1186 if (! hv)
3280af22 1187 XPUSHs(&PL_sv_undef);
4633a7c4 1188 else {
1b6737cc 1189 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1190 if (gvp && *gvp == egv) {
f7aaccc2 1191 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1192 XPUSHTARG;
1193 }
1194 else {
1195 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1196 }
4633a7c4
LW		 1197 }
1198
1199 if (newdefout) {
ded8aa31
GS		 1200 if (!GvIO(newdefout))
1201 gv_IOadd(newdefout);
4633a7c4
LW		 1202 setdefout(newdefout);
1203 }
1204
a0d0e21e
LW		 1205 RETURN;
1206}
1207
1208PP(pp_getc)
1209{
27da23d5 1210 dVAR; dSP; dTARGET;
90133b69 1211 IO *io = NULL;
2ae324a7 1212 MAGIC *mg;
1b6737cc 1213 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1214
5b468f54
AMS		 1215 if (gv && (io = GvIO(gv))
1216 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1217 {
f54cb97a 1218 const I32 gimme = GIMME_V;
2ae324a7 1219 PUSHMARK(SP);
5b468f54 1220 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1221 PUTBACK;
1222 ENTER;
864dbfa3 1223 call_method("GETC", gimme);
2ae324a7 1224 LEAVE;
1225 SPAGAIN;
54310121 1226 if (gimme == G_SCALAR)
1227 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1228 RETURN;
1229 }
90133b69 1230 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM		 1231 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1232 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1233 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1234 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1235 RETPUSHUNDEF;
90133b69 1236 }
bbce6d69 1237 TAINT;
c69006e4 1238 sv_setpvn(TARG, " ", 1);
9bc64814 1239 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1240 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1241 /* Find out how many bytes the char needs */
aa07b2f6 1242 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1243 if (len > 1) {
1244 SvGROW(TARG,len+1);
1245 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1246 SvCUR_set(TARG,1+len);
1247 }
1248 SvUTF8_on(TARG);
1249 }
a0d0e21e
LW		 1250 PUSHTARG;
1251 RETURN;
1252}
1253
1254PP(pp_read)
1255{
cea2e8a9 1256 return pp_sysread();
a0d0e21e
LW		 1257}
1258
76e3520e 1259STATIC OP *
cea2e8a9 1260S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1261{
27da23d5 1262 dVAR;
c09156bb 1263 register PERL_CONTEXT *cx;
f54cb97a 1264 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1265
1266 ENTER;
1267 SAVETMPS;
1268
146174a9 1269 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1270 PUSHFORMAT(cx);
f39bc417 1271 cx->blk_sub.retop = retop;
fd617465
DM		 1272 SAVECOMPPAD();
1273 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1274
4633a7c4 1275 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1276 return CvSTART(cv);
1277}
1278
1279PP(pp_enterwrite)
1280{
39644a26 1281 dSP;
a0d0e21e
LW		 1282 register GV *gv;
1283 register IO *io;
1284 GV *fgv;
1285 CV *cv;
1286
1287 if (MAXARG == 0)
3280af22 1288 gv = PL_defoutgv;
a0d0e21e
LW		 1289 else {
1290 gv = (GV*)POPs;
1291 if (!gv)
3280af22 1292 gv = PL_defoutgv;
a0d0e21e
LW		 1293 }
1294 EXTEND(SP, 1);
1295 io = GvIO(gv);
1296 if (!io) {
1297 RETPUSHNO;
1298 }
1299 if (IoFMT_GV(io))
1300 fgv = IoFMT_GV(io);
1301 else
1302 fgv = gv;
1303
1304 cv = GvFORM(fgv);
a0d0e21e
LW		 1305 if (!cv) {
1306 if (fgv) {
1df70142 1307 SV * const tmpsv = sv_newmortal();
e62f0680 1308 const char *name;
43693395 1309 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1310 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1311 if (name && *name)
1312 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1313 }
cea2e8a9 1314 DIE(aTHX_ "Not a format reference");
a0d0e21e 1315 }
44a8e56a 1316 if (CvCLONE(cv))
1317 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1318
44a8e56a 1319 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1320 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1321}
1322
1323PP(pp_leavewrite)
1324{
27da23d5 1325 dVAR; dSP;
1b6737cc
AL		 1326 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1327 register IO * const io = GvIOp(gv);
1328 PerlIO * const ofp = IoOFP(io);
760ac839 1329 PerlIO *fp;
8772537c
AL		 1330 SV **newsp;
1331 I32 gimme;
c09156bb 1332 register PERL_CONTEXT *cx;
a0d0e21e 1333
760ac839 1334 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1335 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1336 if (!io || !ofp)
1337 goto forget_top;
3280af22
NIS		 1338 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1339 PL_formtarget != PL_toptarget)
a0d0e21e 1340 {
4633a7c4
LW		 1341 GV *fgv;
1342 CV *cv;
a0d0e21e
LW		 1343 if (!IoTOP_GV(io)) {
1344 GV *topgv;
a0d0e21e
LW		 1345
1346 if (!IoTOP_NAME(io)) {
1b6737cc 1347 SV *topname;
a0d0e21e
LW		 1348 if (!IoFMT_NAME(io))
1349 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1350 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1351 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1352 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1353 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1354 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1355 else
ff5bdd37 1356 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1357 }
1358 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1359 if (!topgv || !GvFORM(topgv)) {
b929a54b 1360 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1361 goto forget_top;
1362 }
1363 IoTOP_GV(io) = topgv;
1364 }
748a9306
LW		 1365 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1366 I32 lines = IoLINES_LEFT(io);
504618e9 1367 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1368 if (lines <= 0) /* Yow, header didn't even fit!!! */
1369 goto forget_top;
748a9306
LW		 1370 while (lines-- > 0) {
1371 s = strchr(s, '\n');
1372 if (!s)
1373 break;
1374 s++;
1375 }
1376 if (s) {
f54cb97a 1377 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1378 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1379 do_print(PL_formtarget, ofp);
1380 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1381 sv_chop(PL_formtarget, s);
1382 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1383 }
1384 }
a0d0e21e 1385 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1386 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1387 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1388 IoPAGE(io)++;
3280af22 1389 PL_formtarget = PL_toptarget;
748a9306 1390 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1391 fgv = IoTOP_GV(io);
1392 if (!fgv)
cea2e8a9 1393 DIE(aTHX_ "bad top format reference");
4633a7c4 1394 cv = GvFORM(fgv);
1df70142
AL		 1395 if (!cv) {
1396 SV * const sv = sv_newmortal();
b464bac0 1397 const char *name;
1df70142 1398 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1399 name = SvPV_nolen_const(sv);
2dd78f96 1400 if (name && *name)
1df70142 1401 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1402 }
1df70142
AL		 1403 /* why no:
1404 else
1405 DIE(aTHX_ "Undefined top format called");
1406 ?*/
44a8e56a 1407 if (CvCLONE(cv))
1408 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1409 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1410 }
1411
1412 forget_top:
3280af22 1413 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1414 POPFORMAT(cx);
1415 LEAVE;
1416
1417 fp = IoOFP(io);
1418 if (!fp) {
599cee73 1419 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1420 if (IoIFP(io))
1421 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1422 else if (ckWARN(WARN_CLOSED))
bc37a18f 1423 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1424 }
3280af22 1425 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1426 }
1427 else {
3280af22 1428 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1429 if (ckWARN(WARN_IO))
9014280d 1430 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1431 }
d75029d0 1432 if (!do_print(PL_formtarget, fp))
3280af22 1433 PUSHs(&PL_sv_no);
a0d0e21e 1434 else {
3280af22
NIS		 1435 FmLINES(PL_formtarget) = 0;
1436 SvCUR_set(PL_formtarget, 0);
1437 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1438 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1439 (void)PerlIO_flush(fp);
3280af22 1440 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1441 }
1442 }
9cbac4c7 1443 /* bad_ofp: */
3280af22 1444 PL_formtarget = PL_bodytarget;
a0d0e21e 1445 PUTBACK;
29033a8a
SH		 1446 PERL_UNUSED_VAR(newsp);
1447 PERL_UNUSED_VAR(gimme);
f39bc417 1448 return cx->blk_sub.retop;
a0d0e21e
LW		 1449}
1450
1451PP(pp_prtf)
1452{
27da23d5 1453 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1454 GV *gv;
1455 IO *io;
760ac839 1456 PerlIO *fp;
26db47c4 1457 SV *sv;
46fc3d4c 1458 MAGIC *mg;
a0d0e21e 1459
533c011a 1460 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1461 gv = (GV*)*++MARK;
1462 else
3280af22 1463 gv = PL_defoutgv;
46fc3d4c 1464
5b468f54
AMS		 1465 if (gv && (io = GvIO(gv))
1466 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1467 {
46fc3d4c 1468 if (MARK == ORIGMARK) {
4352c267 1469 MEXTEND(SP, 1);
46fc3d4c 1470 ++MARK;
1471 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1472 ++SP;
1473 }
1474 PUSHMARK(MARK - 1);
5b468f54 1475 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1476 PUTBACK;
1477 ENTER;
864dbfa3 1478 call_method("PRINTF", G_SCALAR);
46fc3d4c 1479 LEAVE;
1480 SPAGAIN;
1481 MARK = ORIGMARK + 1;
1482 *MARK = *SP;
1483 SP = MARK;
1484 RETURN;
1485 }
1486
26db47c4 1487 sv = NEWSV(0,0);
a0d0e21e 1488 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1489 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1490 report_evil_fh(gv, io, PL_op->op_type);
93189314 1491 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1492 goto just_say_no;
1493 }
1494 else if (!(fp = IoOFP(io))) {
599cee73 1495 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1496 if (IoIFP(io))
1497 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1498 else if (ckWARN(WARN_CLOSED))
bc37a18f 1499 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1500 }
93189314 1501 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1502 goto just_say_no;
1503 }
1504 else {
1505 do_sprintf(sv, SP - MARK, MARK + 1);
1506 if (!do_print(sv, fp))
1507 goto just_say_no;
1508
1509 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1510 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1511 goto just_say_no;
1512 }
1513 SvREFCNT_dec(sv);
1514 SP = ORIGMARK;
3280af22 1515 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1516 RETURN;
1517
1518 just_say_no:
1519 SvREFCNT_dec(sv);
1520 SP = ORIGMARK;
3280af22 1521 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1522 RETURN;
1523}
1524
c07a80fd 1525PP(pp_sysopen)
1526{
39644a26 1527 dSP;
1df70142
AL		 1528 const int perm = (MAXARG > 3) ? POPi : 0666;
1529 const int mode = POPi;
1b6737cc
AL		 1530 SV * const sv = POPs;
1531 GV * const gv = (GV *)POPs;
1532 STRLEN len;
c07a80fd 1533
4592e6ca 1534 /* Need TIEHANDLE method ? */
1b6737cc 1535 const char * const tmps = SvPV_const(sv, len);
e62f0680 1536 /* FIXME? do_open should do const */
2fbb330f 1537 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1538 IoLINES(GvIOp(gv)) = 0;
3280af22 1539 PUSHs(&PL_sv_yes);
c07a80fd 1540 }
1541 else {
3280af22 1542 PUSHs(&PL_sv_undef);
c07a80fd 1543 }
1544 RETURN;
1545}
1546
a0d0e21e
LW		 1547PP(pp_sysread)
1548{
27da23d5 1549 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1550 int offset;
a0d0e21e
LW		 1551 IO *io;
1552 char *buffer;
5b54f415 1553 SSize_t length;
eb5c063a 1554 SSize_t count;
1e422769 1555 Sock_size_t bufsize;
748a9306 1556 SV *bufsv;
a0d0e21e 1557 STRLEN blen;
eb5c063a 1558 int fp_utf8;
1dd30107
NC		 1559 int buffer_utf8;
1560 SV *read_target;
eb5c063a
NIS		 1561 Size_t got = 0;
1562 Size_t wanted;
1d636c13 1563 bool charstart = FALSE;
87330c3c
JH		 1564 STRLEN charskip = 0;
1565 STRLEN skip = 0;
a0d0e21e 1566
1b6737cc 1567 GV * const gv = (GV*)*++MARK;
5b468f54 1568 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1569 && gv && (io = GvIO(gv)) )
137443ea 1570 {
1b6737cc
AL		 1571 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1572 if (mg) {
1573 SV *sv;
1574 PUSHMARK(MARK-1);
1575 *MARK = SvTIED_obj((SV*)io, mg);
1576 ENTER;
1577 call_method("READ", G_SCALAR);
1578 LEAVE;
1579 SPAGAIN;
1580 sv = POPs;
1581 SP = ORIGMARK;
1582 PUSHs(sv);
1583 RETURN;
1584 }
2ae324a7 1585 }
1586
a0d0e21e
LW		 1587 if (!gv)
1588 goto say_undef;
748a9306 1589 bufsv = *++MARK;
ff68c719 1590 if (! SvOK(bufsv))
1591 sv_setpvn(bufsv, "", 0);
a0d0e21e 1592 length = SvIVx(*++MARK);
748a9306 1593 SETERRNO(0,0);
a0d0e21e
LW		 1594 if (MARK < SP)
1595 offset = SvIVx(*++MARK);
1596 else
1597 offset = 0;
1598 io = GvIO(gv);
b5fe5ca2
SR		 1599 if (!io || !IoIFP(io)) {
1600 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1601 report_evil_fh(gv, io, PL_op->op_type);
1602 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1603 goto say_undef;
b5fe5ca2 1604 }
0064a8a9 1605 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1606 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1607 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1608 SvUTF8_on(bufsv);
9b9d7ce8 1609 buffer_utf8 = 0;
7d59b7e4
NIS		 1610 }
1611 else {
1612 buffer = SvPV_force(bufsv, blen);
1dd30107 1613 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1614 }
1615 if (length < 0)
1616 DIE(aTHX_ "Negative length");
eb5c063a 1617 wanted = length;
7d59b7e4 1618
d0965105
JH		 1619 charstart = TRUE;
1620 charskip = 0;
87330c3c 1621 skip = 0;
d0965105 1622
a0d0e21e 1623#ifdef HAS_SOCKET
533c011a 1624 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1625 char namebuf[MAXPATHLEN];
17a8c7ba 1626#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1627 bufsize = sizeof (struct sockaddr_in);
1628#else
46fc3d4c 1629 bufsize = sizeof namebuf;
490ab354 1630#endif
abf95952
IZ		 1631#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1632 if (bufsize >= 256)
1633 bufsize = 255;
1634#endif
eb160463 1635 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1636 /* 'offset' means 'flags' here */
eb5c063a 1637 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1638 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1639 if (count < 0)
a0d0e21e 1640 RETPUSHUNDEF;
4107cc59
OF		 1641#ifdef EPOC
1642 /* Bogus return without padding */
1643 bufsize = sizeof (struct sockaddr_in);
1644#endif
eb5c063a 1645 SvCUR_set(bufsv, count);
748a9306
LW		 1646 *SvEND(bufsv) = '\0';
1647 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1648 if (fp_utf8)
1649 SvUTF8_on(bufsv);
748a9306 1650 SvSETMAGIC(bufsv);
aac0dd9a 1651 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1652 if (!(IoFLAGS(io) & IOf_UNTAINT))
1653 SvTAINTED_on(bufsv);
a0d0e21e 1654 SP = ORIGMARK;
46fc3d4c 1655 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1656 PUSHs(TARG);
1657 RETURN;
1658 }
1659#else
911d147d 1660 if (PL_op->op_type == OP_RECV)
cea2e8a9 1661 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1662#endif
eb5c063a
NIS		 1663 if (DO_UTF8(bufsv)) {
1664 /* offset adjust in characters not bytes */
1665 blen = sv_len_utf8(bufsv);
7d59b7e4 1666 }
bbce6d69 1667 if (offset < 0) {
eb160463 1668 if (-offset > (int)blen)
cea2e8a9 1669 DIE(aTHX_ "Offset outside string");
bbce6d69 1670 offset += blen;
1671 }
eb5c063a
NIS		 1672 if (DO_UTF8(bufsv)) {
1673 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1674 if (offset >= (int)blen)
1675 offset += SvCUR(bufsv) - blen;
1676 else
1677 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1678 }
1679 more_bytes:
cd52b7b2 1680 bufsize = SvCUR(bufsv);
1dd30107
NC		 1681 /* Allocating length + offset + 1 isn't perfect in the case of reading
1682 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1683 unduly.
1684 (should be 2 * length + offset + 1, or possibly something longer if
1685 PL_encoding is true) */
eb160463 1686 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1687 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1688 Zero(buffer+bufsize, offset-bufsize, char);
1689 }
eb5c063a 1690 buffer = buffer + offset;
1dd30107
NC		 1691 if (!buffer_utf8) {
1692 read_target = bufsv;
1693 } else {
1694 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1695 concatenate it to the current buffer. */
1696
1697 /* Truncate the existing buffer to the start of where we will be
1698 reading to: */
1699 SvCUR_set(bufsv, offset);
1700
1701 read_target = sv_newmortal();
862a34c6 1702 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1703 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1704 }
eb5c063a 1705
533c011a 1706 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1707#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1708 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1709 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1710 buffer, length, 0);
a7092146
GS		 1711 }
1712 else
1713#endif
1714 {
eb5c063a
NIS		 1715 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1716 buffer, length);
a7092146 1717 }
a0d0e21e
LW		 1718 }
1719 else
1720#ifdef HAS_SOCKET__bad_code_maybe
50952442 1721 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1722 char namebuf[MAXPATHLEN];
490ab354
JH		 1723#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1724 bufsize = sizeof (struct sockaddr_in);
1725#else
46fc3d4c 1726 bufsize = sizeof namebuf;
490ab354 1727#endif
eb5c063a 1728 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1729 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1730 }
1731 else
1732#endif
3b02c43c 1733 {
eb5c063a
NIS		 1734 count = PerlIO_read(IoIFP(io), buffer, length);
1735 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1736 if (count == 0 && PerlIO_error(IoIFP(io)))
1737 count = -1;
3b02c43c 1738 }
eb5c063a 1739 if (count < 0) {
a00b5bd3 1740 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1741 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1742 goto say_undef;
af8c498a 1743 }
aa07b2f6 1744 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1745 *SvEND(read_target) = '\0';
1746 (void)SvPOK_only(read_target);
0064a8a9 1747 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1748 /* Look at utf8 we got back and count the characters */
1df70142 1749 const char *bend = buffer + count;
eb5c063a 1750 while (buffer < bend) {
d0965105
JH		 1751 if (charstart) {
1752 skip = UTF8SKIP(buffer);
1753 charskip = 0;
1754 }
1755 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1756 /* partial character - try for rest of it */
1757 length = skip - (bend-buffer);
aa07b2f6 1758 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1759 charstart = FALSE;
1760 charskip += count;
eb5c063a
NIS		 1761 goto more_bytes;
1762 }
1763 else {
1764 got++;
1765 buffer += skip;
d0965105
JH		 1766 charstart = TRUE;
1767 charskip = 0;
eb5c063a
NIS		 1768 }
1769 }
1770 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1771 provided amount read (count) was what was requested (length)
1772 */
1773 if (got < wanted && count == length) {
d0965105 1774 length = wanted - got;
aa07b2f6 1775 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1776 goto more_bytes;
1777 }
1778 /* return value is character count */
1779 count = got;
1780 SvUTF8_on(bufsv);
1781 }
1dd30107
NC		 1782 else if (buffer_utf8) {
1783 /* Let svcatsv upgrade the bytes we read in to utf8.
1784 The buffer is a mortal so will be freed soon. */
1785 sv_catsv_nomg(bufsv, read_target);
1786 }
748a9306 1787 SvSETMAGIC(bufsv);
aac0dd9a 1788 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1789 if (!(IoFLAGS(io) & IOf_UNTAINT))
1790 SvTAINTED_on(bufsv);
a0d0e21e 1791 SP = ORIGMARK;
eb5c063a 1792 PUSHi(count);
a0d0e21e
LW		 1793 RETURN;
1794
1795 say_undef:
1796 SP = ORIGMARK;
1797 RETPUSHUNDEF;
1798}
1799
1800PP(pp_syswrite)
1801{
27da23d5 1802 dVAR; dSP;
1df70142 1803 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1804 if (items == 2) {
9f089d78 1805 SV *sv;
092bebab 1806 EXTEND(SP, 1);
9f089d78
SB		 1807 sv = sv_2mortal(newSViv(sv_len(*SP)));
1808 PUSHs(sv);
092bebab
JH		 1809 PUTBACK;
1810 }
cea2e8a9 1811 return pp_send();
a0d0e21e
LW		 1812}
1813
1814PP(pp_send)
1815{
27da23d5 1816 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1817 GV *gv;
1818 IO *io;
748a9306 1819 SV *bufsv;
83003860 1820 const char *buffer;
8c99d73e
GS		 1821 Size_t length;
1822 SSize_t retval;
a0d0e21e 1823 STRLEN blen;
1d603a67 1824 MAGIC *mg;
a0d0e21e
LW		 1825
1826 gv = (GV*)*++MARK;
14befaf4 1827 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1828 && gv && (io = GvIO(gv))
1829 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1830 {
1d603a67
GB		 1831 SV *sv;
1832
1833 PUSHMARK(MARK-1);
5b468f54 1834 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1835 ENTER;
864dbfa3 1836 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1837 LEAVE;
1838 SPAGAIN;
1839 sv = POPs;
1840 SP = ORIGMARK;
1841 PUSHs(sv);
1842 RETURN;
1843 }
a0d0e21e
LW		 1844 if (!gv)
1845 goto say_undef;
748a9306 1846 bufsv = *++MARK;
8c99d73e 1847#if Size_t_size > IVSIZE
3c001241 1848 length = (Size_t)SvNVx(*++MARK);
146174a9 1849#else
3c001241 1850 length = (Size_t)SvIVx(*++MARK);
146174a9 1851#endif
3c001241 1852 if ((SSize_t)length < 0)
cea2e8a9 1853 DIE(aTHX_ "Negative length");
748a9306 1854 SETERRNO(0,0);
a0d0e21e
LW		 1855 io = GvIO(gv);
1856 if (!io || !IoIFP(io)) {
8c99d73e 1857 retval = -1;
bc37a18f
RG		 1858 if (ckWARN(WARN_CLOSED))
1859 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1860 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1861 goto say_undef;
1862 }
1863
1864 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1865 if (!SvUTF8(bufsv)) {
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 buffer = sv_2pvutf8(bufsv, &blen);
1868 } else
83003860 1869 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1870 }
7d59b7e4 1871 else {
4de5f5ca
JH		 1872 if (DO_UTF8(bufsv)) {
1873 /* Not modifying source SV, so making a temporary copy. */
1874 bufsv = sv_2mortal(newSVsv(bufsv));
1875 sv_utf8_downgrade(bufsv, FALSE);
1876 }
83003860 1877 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1878 }
1879
1880 if (PL_op->op_type == OP_SYSWRITE) {
1881 IV offset;
1882 if (DO_UTF8(bufsv)) {
1883 /* length and offset are in chars */
1884 blen = sv_len_utf8(bufsv);
1885 }
bbce6d69 1886 if (MARK < SP) {
a0d0e21e 1887 offset = SvIVx(*++MARK);
bbce6d69 1888 if (offset < 0) {
eb160463 1889 if (-offset > (IV)blen)
cea2e8a9 1890 DIE(aTHX_ "Offset outside string");
bbce6d69 1891 offset += blen;
eb160463 1892 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1893 DIE(aTHX_ "Offset outside string");
bbce6d69 1894 } else
a0d0e21e
LW		 1895 offset = 0;
1896 if (length > blen - offset)
1897 length = blen - offset;
7d59b7e4 1898 if (DO_UTF8(bufsv)) {
83003860 1899 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1900 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1901 }
1902 else {
1903 buffer = buffer+offset;
1904 }
a7092146 1905#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1906 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1907 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1908 buffer, length, 0);
a7092146
GS		 1909 }
1910 else
1911#endif
1912 {
94e4c244 1913 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1914 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1915 buffer, length);
a7092146 1916 }
a0d0e21e
LW		 1917 }
1918#ifdef HAS_SOCKET
1919 else if (SP > MARK) {
a0d0e21e 1920 STRLEN mlen;
1df70142 1921 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1922 /* length is really flags */
8c99d73e
GS		 1923 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1924 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1925 }
1926 else
7d59b7e4 1927 /* length is really flags */
8c99d73e 1928 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1929#else
1930 else
cea2e8a9 1931 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1932#endif
8c99d73e 1933 if (retval < 0)
a0d0e21e
LW		 1934 goto say_undef;
1935 SP = ORIGMARK;
f36eea10
JH		 1936 if (DO_UTF8(bufsv))
1937 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1938#if Size_t_size > IVSIZE
1939 PUSHn(retval);
1940#else
1941 PUSHi(retval);
1942#endif
a0d0e21e
LW		 1943 RETURN;
1944
1945 say_undef:
1946 SP = ORIGMARK;
1947 RETPUSHUNDEF;
1948}
1949
1950PP(pp_recv)
1951{
cea2e8a9 1952 return pp_sysread();
a0d0e21e
LW		 1953}
1954
1955PP(pp_eof)
1956{
27da23d5 1957 dVAR; dSP;
a0d0e21e 1958 GV *gv;
5b468f54 1959 IO *io;
4592e6ca 1960 MAGIC *mg;
a0d0e21e 1961
32da55ab 1962 if (MAXARG == 0) {
146174a9
CB		 1963 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1964 IO *io;
ed2c6b9b 1965 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1966 io = GvIO(gv);
1967 if (io && !IoIFP(io)) {
1968 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1969 IoLINES(io) = 0;
1970 IoFLAGS(io) &= ~IOf_START;
2fbb330f 1971 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1972 sv_setpvn(GvSV(gv), "-", 1);
1973 SvSETMAGIC(GvSV(gv));
1974 }
1975 else if (!nextargv(gv))
1976 RETPUSHYES;
1977 }
1978 }
1979 else
1980 gv = PL_last_in_gv; /* eof */
1981 }
a0d0e21e 1982 else
146174a9 1983 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1984
5b468f54
AMS		 1985 if (gv && (io = GvIO(gv))
1986 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1987 {
4592e6ca 1988 PUSHMARK(SP);
5b468f54 1989 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1990 PUTBACK;
1991 ENTER;
864dbfa3 1992 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1993 LEAVE;
1994 SPAGAIN;
1995 RETURN;
1996 }
1997
54310121 1998 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1999 RETURN;
2000}
2001
2002PP(pp_tell)
2003{
27da23d5 2004 dVAR; dSP; dTARGET;
301e8125 2005 GV *gv;
5b468f54 2006 IO *io;
4592e6ca 2007 MAGIC *mg;
a0d0e21e 2008
32da55ab 2009 if (MAXARG == 0)
3280af22 2010 gv = PL_last_in_gv;
a0d0e21e 2011 else
3280af22 2012 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2013
5b468f54
AMS		 2014 if (gv && (io = GvIO(gv))
2015 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2016 {
4592e6ca 2017 PUSHMARK(SP);
5b468f54 2018 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2019 PUTBACK;
2020 ENTER;
864dbfa3 2021 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2022 LEAVE;
2023 SPAGAIN;
2024 RETURN;
2025 }
2026
146174a9
CB		 2027#if LSEEKSIZE > IVSIZE
2028 PUSHn( do_tell(gv) );
2029#else
a0d0e21e 2030 PUSHi( do_tell(gv) );
146174a9 2031#endif
a0d0e21e
LW		 2032 RETURN;
2033}
2034
2035PP(pp_seek)
2036{
cea2e8a9 2037 return pp_sysseek();
137443ea 2038}
2039
2040PP(pp_sysseek)
2041{
27da23d5 2042 dVAR; dSP;
a0d0e21e 2043 GV *gv;
5b468f54 2044 IO *io;
1df70142 2045 const int whence = POPi;
146174a9
CB		 2046#if LSEEKSIZE > IVSIZE
2047 Off_t offset = (Off_t)SvNVx(POPs);
2048#else
d9b3e12d 2049 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2050#endif
4592e6ca 2051 MAGIC *mg;
a0d0e21e 2052
3280af22 2053 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2054
5b468f54
AMS		 2055 if (gv && (io = GvIO(gv))
2056 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2057 {
4592e6ca 2058 PUSHMARK(SP);
5b468f54 2059 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2060#if LSEEKSIZE > IVSIZE
2061 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2062#else
b448e4fe 2063 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2064#endif
b448e4fe 2065 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2066 PUTBACK;
2067 ENTER;
864dbfa3 2068 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2069 LEAVE;
2070 SPAGAIN;
2071 RETURN;
2072 }
2073
533c011a 2074 if (PL_op->op_type == OP_SEEK)
8903cb82 2075 PUSHs(boolSV(do_seek(gv, offset, whence)));
2076 else {
b448e4fe
JH		 2077 Off_t sought = do_sysseek(gv, offset, whence);
2078 if (sought < 0)
146174a9
CB		 2079 PUSHs(&PL_sv_undef);
2080 else {
b448e4fe 2081 SV* sv = sought ?
146174a9 2082#if LSEEKSIZE > IVSIZE
b448e4fe 2083 newSVnv((NV)sought)
146174a9 2084#else
b448e4fe 2085 newSViv(sought)
146174a9
CB		 2086#endif
2087 : newSVpvn(zero_but_true, ZBTLEN);
2088 PUSHs(sv_2mortal(sv));
2089 }
8903cb82 2090 }
a0d0e21e
LW		 2091 RETURN;
2092}
2093
2094PP(pp_truncate)
2095{
39644a26 2096 dSP;
8c99d73e
GS		 2097 /* There seems to be no consensus on the length type of truncate()
2098 * and ftruncate(), both off_t and size_t have supporters. In
2099 * general one would think that when using large files, off_t is
2100 * at least as wide as size_t, so using an off_t should be okay. */
2101 /* XXX Configure probe for the length type of *truncate() needed XXX */
2102 Off_t len;
a0d0e21e 2103
25342a55 2104#if Off_t_size > IVSIZE
8c99d73e
GS		 2105 len = (Off_t)POPn;
2106#else
2107 len = (Off_t)POPi;
2108#endif
2109 /* Checking for length < 0 is problematic as the type might or
301e8125 2110 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2111 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2112 SETERRNO(0,0);
d05c1ba0 2113 {
d05c1ba0
JH		 2114 int result = 1;
2115 GV *tmpgv;
090bf15b
SR		 2116 IO *io;
2117
d05c1ba0 2118 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2119 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2120
090bf15b
SR		 2121 do_ftruncate_gv:
2122 if (!GvIO(tmpgv))
2123 result = 0;
d05c1ba0 2124 else {
090bf15b
SR		 2125 PerlIO *fp;
2126 io = GvIOp(tmpgv);
2127 do_ftruncate_io:
2128 TAINT_PROPER("truncate");
2129 if (!(fp = IoIFP(io))) {
2130 result = 0;
2131 }
2132 else {
2133 PerlIO_flush(fp);
cbdc8872 2134#ifdef HAS_TRUNCATE
090bf15b 2135 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2136#else
090bf15b 2137 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2138#endif
090bf15b
SR		 2139 result = 0;
2140 }
d05c1ba0 2141 }
cbdc8872 2142 }
d05c1ba0
JH		 2143 else {
2144 SV *sv = POPs;
83003860 2145 const char *name;
7a5fd60d 2146
d05c1ba0
JH		 2147 if (SvTYPE(sv) == SVt_PVGV) {
2148 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2149 goto do_ftruncate_gv;
d05c1ba0
JH		 2150 }
2151 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2152 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2153 goto do_ftruncate_gv;
2154 }
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2156 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2157 goto do_ftruncate_io;
d05c1ba0 2158 }
1e422769 2159
83003860 2160 name = SvPV_nolen_const(sv);
d05c1ba0 2161 TAINT_PROPER("truncate");
cbdc8872 2162#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2163 if (truncate(name, len) < 0)
2164 result = 0;
cbdc8872 2165#else
d05c1ba0
JH		 2166 {
2167 int tmpfd;
2168
2169 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2170 result = 0;
d05c1ba0
JH		 2171 else {
2172 if (my_chsize(tmpfd, len) < 0)
2173 result = 0;
2174 PerlLIO_close(tmpfd);
2175 }
cbdc8872 2176 }
a0d0e21e 2177#endif
d05c1ba0 2178 }
a0d0e21e 2179
d05c1ba0
JH		 2180 if (result)
2181 RETPUSHYES;
2182 if (!errno)
93189314 2183 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2184 RETPUSHUNDEF;
2185 }
a0d0e21e
LW		 2186}
2187
2188PP(pp_fcntl)
2189{
cea2e8a9 2190 return pp_ioctl();
a0d0e21e
LW		 2191}
2192
2193PP(pp_ioctl)
2194{
39644a26 2195 dSP; dTARGET;
748a9306 2196 SV *argsv = POPs;
1df70142 2197 const unsigned int func = POPu;
e1ec3a88 2198 const int optype = PL_op->op_type;
a0d0e21e 2199 char *s;
324aa91a 2200 IV retval;
a0d0e21e 2201 GV *gv = (GV*)POPs;
c289d2f7 2202 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2203
748a9306 2204 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2205 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2206 report_evil_fh(gv, io, PL_op->op_type);
93189314 2207 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2208 RETPUSHUNDEF;
2209 }
2210
748a9306 2211 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2212 STRLEN len;
324aa91a 2213 STRLEN need;
748a9306 2214 s = SvPV_force(argsv, len);
324aa91a
HF		 2215 need = IOCPARM_LEN(func);
2216 if (len < need) {
2217 s = Sv_Grow(argsv, need + 1);
2218 SvCUR_set(argsv, need);
a0d0e21e
LW		 2219 }
2220
748a9306 2221 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2222 }
2223 else {
748a9306 2224 retval = SvIV(argsv);
c529f79d 2225 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2226 }
2227
2228 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2229
2230 if (optype == OP_IOCTL)
2231#ifdef HAS_IOCTL
76e3520e 2232 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2233#else
cea2e8a9 2234 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2235#endif
2236 else
c214f4ad
WB		 2237#ifndef HAS_FCNTL
2238 DIE(aTHX_ "fcntl is not implemented");
2239#else
55497cff 2240#if defined(OS2) && defined(__EMX__)
760ac839 2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2242#else
760ac839 2243 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2244#endif
6652bd42 2245#endif
a0d0e21e 2246
6652bd42 2247#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2248 if (SvPOK(argsv)) {
2249 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2250 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2251 OP_NAME(PL_op));
748a9306
LW		 2252 s[SvCUR(argsv)] = 0; /* put our null back */
2253 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2254 }
2255
2256 if (retval == -1)
2257 RETPUSHUNDEF;
2258 if (retval != 0) {
2259 PUSHi(retval);
2260 }
2261 else {
8903cb82 2262 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2263 }
4808266b 2264#endif
c214f4ad 2265 RETURN;
a0d0e21e
LW		 2266}
2267
2268PP(pp_flock)
2269{
9cad6237 2270#ifdef FLOCK
39644a26 2271 dSP; dTARGET;
a0d0e21e
LW		 2272 I32 value;
2273 int argtype;
2274 GV *gv;
bc37a18f 2275 IO *io = NULL;
760ac839 2276 PerlIO *fp;
16d20bd9 2277
a0d0e21e 2278 argtype = POPi;
32da55ab 2279 if (MAXARG == 0)
3280af22 2280 gv = PL_last_in_gv;
a0d0e21e
LW		 2281 else
2282 gv = (GV*)POPs;
bc37a18f
RG		 2283 if (gv && (io = GvIO(gv)))
2284 fp = IoIFP(io);
2285 else {
a0d0e21e 2286 fp = Nullfp;
bc37a18f
RG		 2287 io = NULL;
2288 }
a0d0e21e 2289 if (fp) {
68dc0745 2290 (void)PerlIO_flush(fp);
76e3520e 2291 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2292 }
cb50131a 2293 else {
bc37a18f
RG		 2294 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2295 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2296 value = 0;
93189314 2297 SETERRNO(EBADF,RMS_IFI);
cb50131a 2298 }
a0d0e21e
LW		 2299 PUSHi(value);
2300 RETURN;
2301#else
cea2e8a9 2302 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2303#endif
2304}
2305
2306/* Sockets. */
2307
2308PP(pp_socket)
2309{
a0d0e21e 2310#ifdef HAS_SOCKET
9cad6237 2311 dSP;
a0d0e21e
LW		 2312 GV *gv;
2313 register IO *io;
2314 int protocol = POPi;
2315 int type = POPi;
2316 int domain = POPi;
2317 int fd;
2318
2319 gv = (GV*)POPs;
c289d2f7 2320 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2321
c289d2f7
JH		 2322 if (!gv || !io) {
2323 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2324 report_evil_fh(gv, io, PL_op->op_type);
2325 if (IoIFP(io))
2326 do_close(gv, FALSE);
93189314 2327 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2328 RETPUSHUNDEF;
2329 }
2330
57171420
BS		 2331 if (IoIFP(io))
2332 do_close(gv, FALSE);
2333
a0d0e21e 2334 TAINT_PROPER("socket");
6ad3d225 2335 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2336 if (fd < 0)
2337 RETPUSHUNDEF;
460c8493
IZ		 2338 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2339 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2340 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2341 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2342 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2343 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2344 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2345 RETPUSHUNDEF;
2346 }
8d2a6795
GS		 2347#if defined(HAS_FCNTL) && defined(F_SETFD)
2348 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2349#endif
a0d0e21e 2350
d5ff79b3
OF		 2351#ifdef EPOC
2352 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2353#endif
2354
a0d0e21e
LW		 2355 RETPUSHYES;
2356#else
cea2e8a9 2357 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2358#endif
2359}
2360
2361PP(pp_sockpair)
2362{
c95c94b1 2363#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2364 dSP;
a0d0e21e
LW		 2365 GV *gv1;
2366 GV *gv2;
2367 register IO *io1;
2368 register IO *io2;
2369 int protocol = POPi;
2370 int type = POPi;
2371 int domain = POPi;
2372 int fd[2];
2373
2374 gv2 = (GV*)POPs;
2375 gv1 = (GV*)POPs;
c289d2f7
JH		 2376 io1 = gv1 ? GvIOn(gv1) : NULL;
2377 io2 = gv2 ? GvIOn(gv2) : NULL;
2378 if (!gv1 || !gv2 || !io1 || !io2) {
2379 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2380 if (!gv1 || !io1)
2381 report_evil_fh(gv1, io1, PL_op->op_type);
2382 if (!gv2 || !io2)
2383 report_evil_fh(gv1, io2, PL_op->op_type);
2384 }
2385 if (IoIFP(io1))
2386 do_close(gv1, FALSE);
2387 if (IoIFP(io2))
2388 do_close(gv2, FALSE);
a0d0e21e 2389 RETPUSHUNDEF;
c289d2f7 2390 }
a0d0e21e 2391
dc0d0a5f
JH		 2392 if (IoIFP(io1))
2393 do_close(gv1, FALSE);
2394 if (IoIFP(io2))
2395 do_close(gv2, FALSE);
57171420 2396
a0d0e21e 2397 TAINT_PROPER("socketpair");
6ad3d225 2398 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2399 RETPUSHUNDEF;
460c8493
IZ		 2400 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2401 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2402 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2403 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2405 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2406 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2407 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2408 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2409 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2410 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2411 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2412 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2413 RETPUSHUNDEF;
2414 }
8d2a6795
GS		 2415#if defined(HAS_FCNTL) && defined(F_SETFD)
2416 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2417 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2418#endif
a0d0e21e
LW		 2419
2420 RETPUSHYES;
2421#else
cea2e8a9 2422 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2423#endif
2424}
2425
2426PP(pp_bind)
2427{
a0d0e21e 2428#ifdef HAS_SOCKET
9cad6237 2429 dSP;
eec2d3df 2430#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2431 extern void GETPRIVMODE();
2432 extern void GETUSERMODE();
eec2d3df 2433#endif
748a9306 2434 SV *addrsv = POPs;
349d4f2f
NC		 2435 /* OK, so on what platform does bind modify addr? */
2436 const char *addr;
a0d0e21e
LW		 2437 GV *gv = (GV*)POPs;
2438 register IO *io = GvIOn(gv);
2439 STRLEN len;
eec2d3df
GS		 2440 int bind_ok = 0;
2441#ifdef MPE
2442 int mpeprivmode = 0;
2443#endif
a0d0e21e
LW		 2444
2445 if (!io || !IoIFP(io))
2446 goto nuts;
2447
349d4f2f 2448 addr = SvPV_const(addrsv, len);
a0d0e21e 2449 TAINT_PROPER("bind");
eec2d3df
GS		 2450#ifdef MPE /* Deal with MPE bind() peculiarities */
2451 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2452 /* The address *MUST* stupidly be zero. */
2453 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2454 /* PRIV mode is required to bind() to ports < 1024. */
2455 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2456 ((struct sockaddr_in *)addr)->sin_port > 0) {
2457 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2458 mpeprivmode = 1;
2459 }
2460 }
2461#endif /* MPE */
2462 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2463 (struct sockaddr *)addr, len) >= 0)
2464 bind_ok = 1;
2465
2466#ifdef MPE /* Switch back to USER mode */
2467 if (mpeprivmode)
2468 GETUSERMODE();
2469#endif /* MPE */
2470
2471 if (bind_ok)
a0d0e21e
LW		 2472 RETPUSHYES;
2473 else
2474 RETPUSHUNDEF;
2475
2476nuts:
599cee73 2477 if (ckWARN(WARN_CLOSED))
bc37a18f 2478 report_evil_fh(gv, io, PL_op->op_type);
93189314 2479 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2480 RETPUSHUNDEF;
2481#else
cea2e8a9 2482 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2483#endif
2484}
2485
2486PP(pp_connect)
2487{
a0d0e21e 2488#ifdef HAS_SOCKET
9cad6237 2489 dSP;
748a9306 2490 SV *addrsv = POPs;
349d4f2f 2491 const char *addr;
a0d0e21e
LW		 2492 GV *gv = (GV*)POPs;
2493 register IO *io = GvIOn(gv);
2494 STRLEN len;
2495
2496 if (!io || !IoIFP(io))
2497 goto nuts;
2498
349d4f2f 2499 addr = SvPV_const(addrsv, len);
a0d0e21e 2500 TAINT_PROPER("connect");
6ad3d225 2501 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2502 RETPUSHYES;
2503 else
2504 RETPUSHUNDEF;
2505
2506nuts:
599cee73 2507 if (ckWARN(WARN_CLOSED))
bc37a18f 2508 report_evil_fh(gv, io, PL_op->op_type);
93189314 2509 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2510 RETPUSHUNDEF;
2511#else
cea2e8a9 2512 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2513#endif
2514}
2515
2516PP(pp_listen)
2517{
a0d0e21e 2518#ifdef HAS_SOCKET
9cad6237 2519 dSP;
a0d0e21e
LW		 2520 int backlog = POPi;
2521 GV *gv = (GV*)POPs;
c289d2f7 2522 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2523
c289d2f7 2524 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2525 goto nuts;
2526
6ad3d225 2527 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2528 RETPUSHYES;
2529 else
2530 RETPUSHUNDEF;
2531
2532nuts:
599cee73 2533 if (ckWARN(WARN_CLOSED))
bc37a18f 2534 report_evil_fh(gv, io, PL_op->op_type);
93189314 2535 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2536 RETPUSHUNDEF;
2537#else
cea2e8a9 2538 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2539#endif
2540}
2541
2542PP(pp_accept)
2543{
a0d0e21e 2544#ifdef HAS_SOCKET
9cad6237 2545 dSP; dTARGET;
a0d0e21e
LW		 2546 GV *ngv;
2547 GV *ggv;
2548 register IO *nstio;
2549 register IO *gstio;
93d47a36
JH		 2550 char namebuf[MAXPATHLEN];
2551#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2552 Sock_size_t len = sizeof (struct sockaddr_in);
2553#else
2554 Sock_size_t len = sizeof namebuf;
2555#endif
a0d0e21e
LW		 2556 int fd;
2557
2558 ggv = (GV*)POPs;
2559 ngv = (GV*)POPs;
2560
2561 if (!ngv)
2562 goto badexit;
2563 if (!ggv)
2564 goto nuts;
2565
2566 gstio = GvIO(ggv);
2567 if (!gstio || !IoIFP(gstio))
2568 goto nuts;
2569
2570 nstio = GvIOn(ngv);
93d47a36 2571 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2572 if (fd < 0)
2573 goto badexit;
a70048fb
AB		 2574 if (IoIFP(nstio))
2575 do_close(ngv, FALSE);
460c8493
IZ		 2576 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2577 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2578 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2579 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2580 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2581 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2582 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2583 goto badexit;
2584 }
8d2a6795
GS		 2585#if defined(HAS_FCNTL) && defined(F_SETFD)
2586 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2587#endif
a0d0e21e 2588
ed79a026 2589#ifdef EPOC
93d47a36 2590 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2591 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2592#endif
381c1bae 2593#ifdef __SCO_VERSION__
93d47a36 2594 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2595#endif
ed79a026 2596
93d47a36 2597 PUSHp(namebuf, len);
a0d0e21e
LW		 2598 RETURN;
2599
2600nuts:
599cee73 2601 if (ckWARN(WARN_CLOSED))
bc37a18f 2602 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2603 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2604
2605badexit:
2606 RETPUSHUNDEF;
2607
2608#else
cea2e8a9 2609 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2610#endif
2611}
2612
2613PP(pp_shutdown)
2614{
a0d0e21e 2615#ifdef HAS_SOCKET
9cad6237 2616 dSP; dTARGET;
a0d0e21e
LW		 2617 int how = POPi;
2618 GV *gv = (GV*)POPs;
2619 register IO *io = GvIOn(gv);
2620
2621 if (!io || !IoIFP(io))
2622 goto nuts;
2623
6ad3d225 2624 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2625 RETURN;
2626
2627nuts:
599cee73 2628 if (ckWARN(WARN_CLOSED))
bc37a18f 2629 report_evil_fh(gv, io, PL_op->op_type);
93189314 2630 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2631 RETPUSHUNDEF;
2632#else
cea2e8a9 2633 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2634#endif
2635}
2636
2637PP(pp_gsockopt)
2638{
2639#ifdef HAS_SOCKET
cea2e8a9 2640 return pp_ssockopt();
a0d0e21e 2641#else
cea2e8a9 2642 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2643#endif
2644}
2645
2646PP(pp_ssockopt)
2647{
a0d0e21e 2648#ifdef HAS_SOCKET
9cad6237 2649 dSP;
533c011a 2650 int optype = PL_op->op_type;
a0d0e21e
LW		 2651 SV *sv;
2652 int fd;
2653 unsigned int optname;
2654 unsigned int lvl;
2655 GV *gv;
2656 register IO *io;
1e422769 2657 Sock_size_t len;
a0d0e21e
LW		 2658
2659 if (optype == OP_GSOCKOPT)
2660 sv = sv_2mortal(NEWSV(22, 257));
2661 else
2662 sv = POPs;
2663 optname = (unsigned int) POPi;
2664 lvl = (unsigned int) POPi;
2665
2666 gv = (GV*)POPs;
2667 io = GvIOn(gv);
2668 if (!io || !IoIFP(io))
2669 goto nuts;
2670
760ac839 2671 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2672 switch (optype) {
2673 case OP_GSOCKOPT:
748a9306 2674 SvGROW(sv, 257);
a0d0e21e 2675 (void)SvPOK_only(sv);
748a9306
LW		 2676 SvCUR_set(sv,256);
2677 *SvEND(sv) ='\0';
1e422769 2678 len = SvCUR(sv);
6ad3d225 2679 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2680 goto nuts2;
1e422769 2681 SvCUR_set(sv, len);
748a9306 2682 *SvEND(sv) ='\0';
a0d0e21e
LW		 2683 PUSHs(sv);
2684 break;
2685 case OP_SSOCKOPT: {
349d4f2f 2686 const char *buf;
1e422769 2687 int aint;
2688 if (SvPOKp(sv)) {
2d8e6c8d 2689 STRLEN l;
349d4f2f 2690 buf = SvPV_const(sv, l);
2d8e6c8d 2691 len = l;
1e422769 2692 }
56ee1660 2693 else {
a0d0e21e 2694 aint = (int)SvIV(sv);
349d4f2f 2695 buf = (const char*)&aint;
a0d0e21e
LW		 2696 len = sizeof(int);
2697 }
6ad3d225 2698 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2699 goto nuts2;
3280af22 2700 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2701 }
2702 break;
2703 }
2704 RETURN;
2705
2706nuts:
599cee73 2707 if (ckWARN(WARN_CLOSED))
bc37a18f 2708 report_evil_fh(gv, io, optype);
93189314 2709 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2710nuts2:
2711 RETPUSHUNDEF;
2712
2713#else
cea2e8a9 2714 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2715#endif
2716}
2717
2718PP(pp_getsockname)
2719{
2720#ifdef HAS_SOCKET
cea2e8a9 2721 return pp_getpeername();
a0d0e21e 2722#else
cea2e8a9 2723 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2724#endif
2725}
2726
2727PP(pp_getpeername)
2728{
a0d0e21e 2729#ifdef HAS_SOCKET
9cad6237 2730 dSP;
533c011a 2731 int optype = PL_op->op_type;
a0d0e21e
LW		 2732 SV *sv;
2733 int fd;
2734 GV *gv = (GV*)POPs;
2735 register IO *io = GvIOn(gv);
1e422769 2736 Sock_size_t len;
a0d0e21e
LW		 2737
2738 if (!io || !IoIFP(io))
2739 goto nuts;
2740
2741 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2742 (void)SvPOK_only(sv);
1e422769 2743 len = 256;
2744 SvCUR_set(sv, len);
748a9306 2745 *SvEND(sv) ='\0';
760ac839 2746 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2747 switch (optype) {
2748 case OP_GETSOCKNAME:
6ad3d225 2749 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2750 goto nuts2;
2751 break;
2752 case OP_GETPEERNAME:
6ad3d225 2753 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2754 goto nuts2;
490ab354
JH		 2755#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2756 {
2757 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2758 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2759 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2760 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2761 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2762 goto nuts2;
490ab354
JH		 2763 }
2764 }
2765#endif
a0d0e21e
LW		 2766 break;
2767 }
13826f2c
CS		 2768#ifdef BOGUS_GETNAME_RETURN
2769 /* Interactive Unix, getpeername() and getsockname()
2770 does not return valid namelen */
1e422769 2771 if (len == BOGUS_GETNAME_RETURN)
2772 len = sizeof(struct sockaddr);
13826f2c 2773#endif
1e422769 2774 SvCUR_set(sv, len);
748a9306 2775 *SvEND(sv) ='\0';
a0d0e21e
LW		 2776 PUSHs(sv);
2777 RETURN;
2778
2779nuts:
599cee73 2780 if (ckWARN(WARN_CLOSED))
bc37a18f 2781 report_evil_fh(gv, io, optype);
93189314 2782 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2783nuts2:
2784 RETPUSHUNDEF;
2785
2786#else
cea2e8a9 2787 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2788#endif
2789}
2790
2791/* Stat calls. */
2792
2793PP(pp_lstat)
2794{
cea2e8a9 2795 return pp_stat();
a0d0e21e
LW		 2796}
2797
2798PP(pp_stat)
2799{
39644a26 2800 dSP;
2dd78f96 2801 GV *gv;
54310121 2802 I32 gimme;
a0d0e21e
LW		 2803 I32 max = 13;
2804
533c011a 2805 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2806 gv = cGVOP_gv;
8a4e5b40 2807 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2808 if (gv != PL_defgv) {
2809 if (ckWARN(WARN_IO))
9014280d 2810 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2811 "lstat() on filehandle %s", GvENAME(gv));
2812 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2813 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2814 }
2815
748a9306 2816 do_fstat:
2dd78f96 2817 if (gv != PL_defgv) {
3280af22 2818 PL_laststype = OP_STAT;
2dd78f96 2819 PL_statgv = gv;
c69006e4 2820 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2821 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2822 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2823 }
9ddeeac9 2824 if (PL_laststatval < 0) {
2dd78f96
JH		 2825 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2826 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2827 max = 0;
9ddeeac9 2828 }
a0d0e21e
LW		 2829 }
2830 else {
748a9306
LW		 2831 SV* sv = POPs;
2832 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2833 gv = (GV*)sv;
748a9306
LW		 2834 goto do_fstat;
2835 }
2836 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2837 gv = (GV*)SvRV(sv);
5d3e98de 2838 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2839 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2840 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2841 goto do_fstat;
2842 }
0510663f 2843 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2844 PL_statgv = Nullgv;
533c011a
NIS		 2845 PL_laststype = PL_op->op_type;
2846 if (PL_op->op_type == OP_LSTAT)
0510663f 2847 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2848 else
0510663f 2849 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2850 if (PL_laststatval < 0) {
0510663f 2851 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2852 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2853 max = 0;
2854 }
2855 }
2856
54310121 2857 gimme = GIMME_V;
2858 if (gimme != G_ARRAY) {
2859 if (gimme != G_VOID)
2860 XPUSHs(boolSV(max));
2861 RETURN;
a0d0e21e
LW		 2862 }
2863 if (max) {
36477c24 2864 EXTEND(SP, max);
2865 EXTEND_MORTAL(max);
1ff81528
PL		 2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2867 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2868 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2869 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2870#if Uid_t_size > IVSIZE
2871 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2872#else
23dcd6c8 2873# if Uid_t_sign <= 0
1ff81528 2874 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2875# else
2876 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2877# endif
146174a9 2878#endif
301e8125 2879#if Gid_t_size > IVSIZE
146174a9
CB		 2880 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2881#else
23dcd6c8 2882# if Gid_t_sign <= 0
1ff81528 2883 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2884# else
2885 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2886# endif
146174a9 2887#endif
cbdc8872 2888#ifdef USE_STAT_RDEV
1ff81528 2889 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2890#else
79cb57f6 2891 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2892#endif
146174a9 2893#if Off_t_size > IVSIZE
4a9d6100 2894 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2895#else
1ff81528 2896 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2897#endif
cbdc8872 2898#ifdef BIG_TIME
172ae379
JH		 2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2901 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2902#else
1ff81528
PL		 2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2906#endif
a0d0e21e 2907#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2908 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2909 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2910#else
79cb57f6
GS		 2911 PUSHs(sv_2mortal(newSVpvn("", 0)));
2912 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2913#endif
2914 }
2915 RETURN;
2916}
2917
fbb0b3b3
RGS		 2918/* This macro is used by the stacked filetest operators :
2919 * if the previous filetest failed, short-circuit and pass its value.
2920 * Else, discard it from the stack and continue. --rgs
2921 */
2922#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2923 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2924 else { (void)POPs; PUTBACK; } \
2925 }
2926
a0d0e21e
LW		 2927PP(pp_ftrread)
2928{
9cad6237 2929 I32 result;
2a3ff820 2930 dSP;
fbb0b3b3 2931 STACKED_FTEST_CHECK;
5ff3f7a4 2932#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2933 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2934 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2935 if (result == 0)
2936 RETPUSHYES;
2937 if (result < 0)
2938 RETPUSHUNDEF;
2939 RETPUSHNO;
22865c03
GS		 2940 }
2941 else
cea2e8a9 2942 result = my_stat();
5ff3f7a4 2943#else
cea2e8a9 2944 result = my_stat();
5ff3f7a4 2945#endif
22865c03 2946 SPAGAIN;
a0d0e21e
LW		 2947 if (result < 0)
2948 RETPUSHUNDEF;
3280af22 2949 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2950 RETPUSHYES;
2951 RETPUSHNO;
2952}
2953
2954PP(pp_ftrwrite)
2955{
9cad6237 2956 I32 result;
2a3ff820 2957 dSP;
fbb0b3b3 2958 STACKED_FTEST_CHECK;
5ff3f7a4 2959#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2960 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2961 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2962 if (result == 0)
2963 RETPUSHYES;
2964 if (result < 0)
2965 RETPUSHUNDEF;
2966 RETPUSHNO;
22865c03
GS		 2967 }
2968 else
cea2e8a9 2969 result = my_stat();
5ff3f7a4 2970#else
cea2e8a9 2971 result = my_stat();
5ff3f7a4 2972#endif
22865c03 2973 SPAGAIN;
a0d0e21e
LW		 2974 if (result < 0)
2975 RETPUSHUNDEF;
3280af22 2976 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2977 RETPUSHYES;
2978 RETPUSHNO;
2979}
2980
2981PP(pp_ftrexec)
2982{
9cad6237 2983 I32 result;
2a3ff820 2984 dSP;
fbb0b3b3 2985 STACKED_FTEST_CHECK;
5ff3f7a4 2986#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2987 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2988 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2989 if (result == 0)
2990 RETPUSHYES;
2991 if (result < 0)
2992 RETPUSHUNDEF;
2993 RETPUSHNO;
22865c03
GS		 2994 }
2995 else
cea2e8a9 2996 result = my_stat();
5ff3f7a4 2997#else
cea2e8a9 2998 result = my_stat();
5ff3f7a4 2999#endif
22865c03 3000 SPAGAIN;
a0d0e21e
LW		 3001 if (result < 0)
3002 RETPUSHUNDEF;
3280af22 3003 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3004 RETPUSHYES;
3005 RETPUSHNO;
3006}
3007
3008PP(pp_fteread)
3009{
9cad6237 3010 I32 result;
2a3ff820 3011 dSP;
fbb0b3b3 3012 STACKED_FTEST_CHECK;
5ff3f7a4 3013#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3014 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3015 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3016 if (result == 0)
3017 RETPUSHYES;
3018 if (result < 0)
3019 RETPUSHUNDEF;
3020 RETPUSHNO;
22865c03
GS		 3021 }
3022 else
cea2e8a9 3023 result = my_stat();
5ff3f7a4 3024#else
cea2e8a9 3025 result = my_stat();
5ff3f7a4 3026#endif
22865c03 3027 SPAGAIN;
a0d0e21e
LW		 3028 if (result < 0)
3029 RETPUSHUNDEF;
3280af22 3030 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3031 RETPUSHYES;
3032 RETPUSHNO;
3033}
3034
3035PP(pp_ftewrite)
3036{
9cad6237 3037 I32 result;
2a3ff820 3038 dSP;
fbb0b3b3 3039 STACKED_FTEST_CHECK;
5ff3f7a4 3040#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3041 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3042 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3043 if (result == 0)
3044 RETPUSHYES;
3045 if (result < 0)
3046 RETPUSHUNDEF;
3047 RETPUSHNO;
22865c03
GS		 3048 }
3049 else
cea2e8a9 3050 result = my_stat();
5ff3f7a4 3051#else
cea2e8a9 3052 result = my_stat();
5ff3f7a4 3053#endif
22865c03 3054 SPAGAIN;
a0d0e21e
LW		 3055 if (result < 0)
3056 RETPUSHUNDEF;
3280af22 3057 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3058 RETPUSHYES;
3059 RETPUSHNO;
3060}
3061
3062PP(pp_fteexec)
3063{
9cad6237 3064 I32 result;
2a3ff820 3065 dSP;
fbb0b3b3 3066 STACKED_FTEST_CHECK;
5ff3f7a4 3067#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3068 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3069 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3070 if (result == 0)
3071 RETPUSHYES;
3072 if (result < 0)
3073 RETPUSHUNDEF;
3074 RETPUSHNO;
22865c03
GS		 3075 }
3076 else
cea2e8a9 3077 result = my_stat();
5ff3f7a4 3078#else
cea2e8a9 3079 result = my_stat();
5ff3f7a4 3080#endif
22865c03 3081 SPAGAIN;
a0d0e21e
LW		 3082 if (result < 0)
3083 RETPUSHUNDEF;
3280af22 3084 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3085 RETPUSHYES;
3086 RETPUSHNO;
3087}
3088
3089PP(pp_ftis)
3090{
fbb0b3b3 3091 I32 result;
2a3ff820 3092 dSP;
fbb0b3b3
RGS		 3093 STACKED_FTEST_CHECK;
3094 result = my_stat();
3095 SPAGAIN;
a0d0e21e
LW		 3096 if (result < 0)
3097 RETPUSHUNDEF;
3098 RETPUSHYES;
3099}
3100
3101PP(pp_fteowned)
3102{
cea2e8a9 3103 return pp_ftrowned();
a0d0e21e
LW		 3104}
3105
3106PP(pp_ftrowned)
3107{
fbb0b3b3 3108 I32 result;
2a3ff820 3109 dSP;
fbb0b3b3
RGS		 3110 STACKED_FTEST_CHECK;
3111 result = my_stat();
3112 SPAGAIN;
a0d0e21e
LW		 3113 if (result < 0)
3114 RETPUSHUNDEF;
146174a9
CB		 3115 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3116 PL_euid : PL_uid) )
a0d0e21e
LW		 3117 RETPUSHYES;
3118 RETPUSHNO;
3119}
3120
3121PP(pp_ftzero)
3122{
fbb0b3b3 3123 I32 result;
2a3ff820 3124 dSP;
fbb0b3b3
RGS		 3125 STACKED_FTEST_CHECK;
3126 result = my_stat();
3127 SPAGAIN;
a0d0e21e
LW		 3128 if (result < 0)
3129 RETPUSHUNDEF;
146174a9 3130 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3131 RETPUSHYES;
3132 RETPUSHNO;
3133}
3134
3135PP(pp_ftsize)
3136{
fbb0b3b3 3137 I32 result;
2a3ff820 3138 dSP; dTARGET;
fbb0b3b3
RGS		 3139 STACKED_FTEST_CHECK;
3140 result = my_stat();
3141 SPAGAIN;
a0d0e21e
LW		 3142 if (result < 0)
3143 RETPUSHUNDEF;
146174a9
CB		 3144#if Off_t_size > IVSIZE
3145 PUSHn(PL_statcache.st_size);
3146#else
3280af22 3147 PUSHi(PL_statcache.st_size);
146174a9 3148#endif
a0d0e21e
LW		 3149 RETURN;
3150}
3151
3152PP(pp_ftmtime)
3153{
fbb0b3b3 3154 I32 result;
2a3ff820 3155 dSP; dTARGET;
fbb0b3b3
RGS		 3156 STACKED_FTEST_CHECK;
3157 result = my_stat();
3158 SPAGAIN;
a0d0e21e
LW		 3159 if (result < 0)
3160 RETPUSHUNDEF;
a80d47c2 3161 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3162 RETURN;
3163}
3164
3165PP(pp_ftatime)
3166{
fbb0b3b3 3167 I32 result;
2a3ff820 3168 dSP; dTARGET;
fbb0b3b3
RGS		 3169 STACKED_FTEST_CHECK;
3170 result = my_stat();
3171 SPAGAIN;
a0d0e21e
LW		 3172 if (result < 0)
3173 RETPUSHUNDEF;
a80d47c2 3174 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3175 RETURN;
3176}
3177
3178PP(pp_ftctime)
3179{
fbb0b3b3 3180 I32 result;
2a3ff820 3181 dSP; dTARGET;
fbb0b3b3
RGS		 3182 STACKED_FTEST_CHECK;
3183 result = my_stat();
3184 SPAGAIN;
a0d0e21e
LW		 3185 if (result < 0)
3186 RETPUSHUNDEF;
a80d47c2 3187 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3188 RETURN;
3189}
3190
3191PP(pp_ftsock)
3192{
fbb0b3b3 3193 I32 result;
2a3ff820 3194 dSP;
fbb0b3b3
RGS		 3195 STACKED_FTEST_CHECK;
3196 result = my_stat();
3197 SPAGAIN;
a0d0e21e
LW		 3198 if (result < 0)
3199 RETPUSHUNDEF;
3280af22 3200 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3201 RETPUSHYES;
3202 RETPUSHNO;
3203}
3204
3205PP(pp_ftchr)
3206{
fbb0b3b3 3207 I32 result;
2a3ff820 3208 dSP;
fbb0b3b3
RGS		 3209 STACKED_FTEST_CHECK;
3210 result = my_stat();
3211 SPAGAIN;
a0d0e21e
LW		 3212 if (result < 0)
3213 RETPUSHUNDEF;
3280af22 3214 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3215 RETPUSHYES;
3216 RETPUSHNO;
3217}
3218
3219PP(pp_ftblk)
3220{
fbb0b3b3 3221 I32 result;
2a3ff820 3222 dSP;
fbb0b3b3
RGS		 3223 STACKED_FTEST_CHECK;
3224 result = my_stat();
3225 SPAGAIN;
a0d0e21e
LW		 3226 if (result < 0)
3227 RETPUSHUNDEF;
3280af22 3228 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3229 RETPUSHYES;
3230 RETPUSHNO;
3231}
3232
3233PP(pp_ftfile)
3234{
fbb0b3b3 3235 I32 result;
2a3ff820 3236 dSP;
fbb0b3b3
RGS		 3237 STACKED_FTEST_CHECK;
3238 result = my_stat();
3239 SPAGAIN;
a0d0e21e
LW		 3240 if (result < 0)
3241 RETPUSHUNDEF;
3280af22 3242 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3243 RETPUSHYES;
3244 RETPUSHNO;
3245}
3246
3247PP(pp_ftdir)
3248{
fbb0b3b3 3249 I32 result;
2a3ff820 3250 dSP;
fbb0b3b3
RGS		 3251 STACKED_FTEST_CHECK;
3252 result = my_stat();
3253 SPAGAIN;
a0d0e21e
LW		 3254 if (result < 0)
3255 RETPUSHUNDEF;
3280af22 3256 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3257 RETPUSHYES;
3258 RETPUSHNO;
3259}
3260
3261PP(pp_ftpipe)
3262{
fbb0b3b3 3263 I32 result;
2a3ff820 3264 dSP;
fbb0b3b3
RGS		 3265 STACKED_FTEST_CHECK;
3266 result = my_stat();
3267 SPAGAIN;
a0d0e21e
LW		 3268 if (result < 0)
3269 RETPUSHUNDEF;
3280af22 3270 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3271 RETPUSHYES;
3272 RETPUSHNO;
3273}
3274
3275PP(pp_ftlink)
3276{
9cad6237 3277 I32 result = my_lstat();
2a3ff820 3278 dSP;
a0d0e21e
LW		 3279 if (result < 0)
3280 RETPUSHUNDEF;
3280af22 3281 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3282 RETPUSHYES;
3283 RETPUSHNO;
3284}
3285
3286PP(pp_ftsuid)
3287{
39644a26 3288 dSP;
a0d0e21e 3289#ifdef S_ISUID
fbb0b3b3
RGS		 3290 I32 result;
3291 STACKED_FTEST_CHECK;
3292 result = my_stat();
a0d0e21e
LW		 3293 SPAGAIN;
3294 if (result < 0)
3295 RETPUSHUNDEF;
3280af22 3296 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3297 RETPUSHYES;
3298#endif
3299 RETPUSHNO;
3300}
3301
3302PP(pp_ftsgid)
3303{
39644a26 3304 dSP;
a0d0e21e 3305#ifdef S_ISGID
fbb0b3b3
RGS		 3306 I32 result;
3307 STACKED_FTEST_CHECK;
3308 result = my_stat();
a0d0e21e
LW		 3309 SPAGAIN;
3310 if (result < 0)
3311 RETPUSHUNDEF;
3280af22 3312 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3313 RETPUSHYES;
3314#endif
3315 RETPUSHNO;
3316}
3317
3318PP(pp_ftsvtx)
3319{
39644a26 3320 dSP;
a0d0e21e 3321#ifdef S_ISVTX
fbb0b3b3
RGS		 3322 I32 result;
3323 STACKED_FTEST_CHECK;
3324 result = my_stat();
a0d0e21e
LW		 3325 SPAGAIN;
3326 if (result < 0)
3327 RETPUSHUNDEF;
3280af22 3328 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3329 RETPUSHYES;
3330#endif
3331 RETPUSHNO;
3332}
3333
3334PP(pp_fttty)
3335{
39644a26 3336 dSP;
a0d0e21e
LW		 3337 int fd;
3338 GV *gv;
7a5fd60d 3339 SV *tmpsv = Nullsv;
fb73857a 3340
fbb0b3b3
RGS		 3341 STACKED_FTEST_CHECK;
3342
533c011a 3343 if (PL_op->op_flags & OPf_REF)
146174a9 3344 gv = cGVOP_gv;
fb73857a 3345 else if (isGV(TOPs))
3346 gv = (GV*)POPs;
3347 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3348 gv = (GV*)SvRV(POPs);
a0d0e21e 3349 else
7a5fd60d 3350 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3351
a0d0e21e 3352 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3353 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3354 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3355 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3356 if (isDIGIT(*tmps))
3357 fd = atoi(tmps);
3358 else
3359 RETPUSHUNDEF;
3360 }
a0d0e21e
LW		 3361 else
3362 RETPUSHUNDEF;
6ad3d225 3363 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3364 RETPUSHYES;
3365 RETPUSHNO;
3366}
3367
16d20bd9
AD		 3368#if defined(atarist) /* this will work with atariST. Configure will
3369 make guesses for other systems. */
3370# define FILE_base(f) ((f)->_base)
3371# define FILE_ptr(f) ((f)->_ptr)
3372# define FILE_cnt(f) ((f)->_cnt)
3373# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3374#endif
3375
3376PP(pp_fttext)
3377{
39644a26 3378 dSP;
a0d0e21e
LW		 3379 I32 i;
3380 I32 len;
3381 I32 odd = 0;
3382 STDCHAR tbuf[512];
3383 register STDCHAR *s;
3384 register IO *io;
5f05dabc 3385 register SV *sv;
3386 GV *gv;
146174a9 3387 PerlIO *fp;
a0d0e21e 3388
fbb0b3b3
RGS		 3389 STACKED_FTEST_CHECK;
3390
533c011a 3391 if (PL_op->op_flags & OPf_REF)
146174a9 3392 gv = cGVOP_gv;
5f05dabc 3393 else if (isGV(TOPs))
3394 gv = (GV*)POPs;
3395 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3396 gv = (GV*)SvRV(POPs);
3397 else
3398 gv = Nullgv;
3399
3400 if (gv) {
a0d0e21e 3401 EXTEND(SP, 1);
3280af22
NIS		 3402 if (gv == PL_defgv) {
3403 if (PL_statgv)
3404 io = GvIO(PL_statgv);
a0d0e21e 3405 else {
3280af22 3406 sv = PL_statname;
a0d0e21e
LW		 3407 goto really_filename;
3408 }
3409 }
3410 else {
3280af22
NIS		 3411 PL_statgv = gv;
3412 PL_laststatval = -1;
c69006e4 3413 sv_setpvn(PL_statname, "", 0);
3280af22 3414 io = GvIO(PL_statgv);
a0d0e21e
LW		 3415 }
3416 if (io && IoIFP(io)) {
5f05dabc 3417 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3418 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3419 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3420 if (PL_laststatval < 0)
5f05dabc 3421 RETPUSHUNDEF;
9cbac4c7 3422 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3423 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3424 RETPUSHNO;
3425 else
3426 RETPUSHYES;
9cbac4c7 3427 }
a20bf0c3 3428 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3429 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3430 if (i != EOF)
760ac839 3431 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3432 }
a20bf0c3 3433 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3434 RETPUSHYES;
a20bf0c3
JH		 3435 len = PerlIO_get_bufsiz(IoIFP(io));
3436 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3437 /* sfio can have large buffers - limit to 512 */
3438 if (len > 512)
3439 len = 512;
a0d0e21e
LW		 3440 }
3441 else {
2dd78f96 3442 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3443 gv = cGVOP_gv;
2dd78f96 3444 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3445 }
93189314 3446 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3447 RETPUSHUNDEF;
3448 }
3449 }
3450 else {
3451 sv = POPs;
5f05dabc 3452 really_filename:
3280af22 3453 PL_statgv = Nullgv;
5c9aa243 3454 PL_laststype = OP_STAT;
d5263905 3455 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3456 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3457 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3458 '\n'))
9014280d 3459 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3460 RETPUSHUNDEF;
3461 }
146174a9
CB		 3462 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3463 if (PL_laststatval < 0) {
3464 (void)PerlIO_close(fp);
5f05dabc 3465 RETPUSHUNDEF;
146174a9 3466 }
60382766 3467 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3468 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3469 (void)PerlIO_close(fp);
a0d0e21e 3470 if (len <= 0) {
533c011a 3471 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3472 RETPUSHNO; /* special case NFS directories */
3473 RETPUSHYES; /* null file is anything */
3474 }
3475 s = tbuf;
3476 }
3477
3478 /* now scan s to look for textiness */
4633a7c4 3479 /* XXX ASCII dependent code */
a0d0e21e 3480
146174a9
CB		 3481#if defined(DOSISH) || defined(USEMYBINMODE)
3482 /* ignore trailing ^Z on short files */
3483 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3484 --len;
3485#endif
3486
a0d0e21e
LW		 3487 for (i = 0; i < len; i++, s++) {
3488 if (!*s) { /* null never allowed in text */
3489 odd += len;
3490 break;
3491 }
9d116dd7 3492#ifdef EBCDIC
301e8125 3493 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3494 odd++;
3495#else
146174a9
CB		 3496 else if (*s & 128) {
3497#ifdef USE_LOCALE
2de3dbcc 3498 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3499 continue;
3500#endif
3501 /* utf8 characters don't count as odd */
fd400ab9 3502 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3503 int ulen = UTF8SKIP(s);
3504 if (ulen < len - i) {
3505 int j;
3506 for (j = 1; j < ulen; j++) {
fd400ab9 3507 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3508 goto not_utf8;
3509 }
3510 --ulen; /* loop does extra increment */
3511 s += ulen;
3512 i += ulen;
3513 continue;
3514 }
3515 }
3516 not_utf8:
3517 odd++;
146174a9 3518 }
a0d0e21e
LW		 3519 else if (*s < 32 &&
3520 *s != '\n' && *s != '\r' && *s != '\b' &&
3521 *s != '\t' && *s != '\f' && *s != 27)
3522 odd++;
9d116dd7 3523#endif
a0d0e21e
LW		 3524 }
3525
533c011a 3526 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3527 RETPUSHNO;
3528 else
3529 RETPUSHYES;
3530}
3531
3532PP(pp_ftbinary)
3533{
cea2e8a9 3534 return pp_fttext();
a0d0e21e
LW		 3535}
3536
3537/* File calls. */
3538
3539PP(pp_chdir)
3540{
39644a26 3541 dSP; dTARGET;
c4aca7d0 3542 const char *tmps = 0;
9a957fbc 3543 GV *gv = NULL;
a0d0e21e 3544
c4aca7d0 3545 if( MAXARG == 1 ) {
9a957fbc 3546 SV * const sv = POPs;
c4aca7d0
GA		 3547 if (SvTYPE(sv) == SVt_PVGV) {
3548 gv = (GV*)sv;
3549 }
3550 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3551 gv = (GV*)SvRV(sv);
3552 }
3553 else {
3554 tmps = SvPVx_nolen_const(sv);
3555 }
3556 }
35ae6b54 3557
c4aca7d0 3558 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3559 HV * const table = GvHVn(PL_envgv);
3560 SV **svp;
3561
3562 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3563 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
491527d0 3564#ifdef VMS
9a957fbc 3565 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
491527d0 3566#endif
35ae6b54
MS		 3567 )
3568 {
3569 if( MAXARG == 1 )
9014280d 3570 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3571 tmps = SvPV_nolen_const(*svp);
35ae6b54 3572 }
72f496dc 3573 else {
389ec635 3574 PUSHi(0);
b7ab37f8 3575 TAINT_PROPER("chdir");
389ec635
MS		 3576 RETURN;
3577 }
8ea155d1 3578 }
8ea155d1 3579
a0d0e21e 3580 TAINT_PROPER("chdir");
c4aca7d0
GA		 3581 if (gv) {
3582#ifdef HAS_FCHDIR
9a957fbc 3583 IO* const io = GvIO(gv);
c4aca7d0
GA		 3584 if (io) {
3585 if (IoIFP(io)) {
3586 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3587 }
3588 else if (IoDIRP(io)) {
3589#ifdef HAS_DIRFD
3590 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3591#else
0f1f2428 3592 DIE(aTHX_ PL_no_func, "dirfd");
c4aca7d0
GA		 3593#endif
3594 }
3595 else {
3596 PUSHi(0);
3597 }
3598 }
3599 else {
3600 PUSHi(0);
3601 }
3602#else
3603 DIE(aTHX_ PL_no_func, "fchdir");
3604#endif
3605 }
3606 else
b8ffc8df 3607 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3608#ifdef VMS
3609 /* Clear the DEFAULT element of ENV so we'll get the new value
3610 * in the future. */
6b88bc9c 3611 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3612#endif
a0d0e21e
LW		 3613 RETURN;
3614}
3615
3616PP(pp_chown)
3617{
a0d0e21e 3618#ifdef HAS_CHOWN
76ffd3b9
IZ		 3619 dSP; dMARK; dTARGET;
3620 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3621
a0d0e21e
LW		 3622 SP = MARK;
3623 PUSHi(value);
3624 RETURN;
3625#else
0322a713 3626 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3627#endif
3628}
3629
3630PP(pp_chroot)
3631{
a0d0e21e 3632#ifdef HAS_CHROOT
76ffd3b9 3633 dSP; dTARGET;
d05c1ba0 3634 char *tmps = POPpx;
a0d0e21e
LW		 3635 TAINT_PROPER("chroot");
3636 PUSHi( chroot(tmps) >= 0 );
3637 RETURN;
3638#else
cea2e8a9 3639 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3640#endif
3641}
3642
3643PP(pp_unlink)
3644{
39644a26 3645 dSP; dMARK; dTARGET;
a0d0e21e 3646 I32 value;
533c011a 3647 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3648 SP = MARK;
3649 PUSHi(value);
3650 RETURN;
3651}
3652
3653PP(pp_chmod)
3654{
39644a26 3655 dSP; dMARK; dTARGET;
a0d0e21e 3656 I32 value;
533c011a 3657 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3658 SP = MARK;
3659 PUSHi(value);
3660 RETURN;
3661}
3662
3663PP(pp_utime)
3664{
39644a26 3665 dSP; dMARK; dTARGET;
a0d0e21e 3666 I32 value;
533c011a 3667 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3668 SP = MARK;
3669 PUSHi(value);
3670 RETURN;
3671}
3672
3673PP(pp_rename)
3674{
39644a26 3675 dSP; dTARGET;
a0d0e21e 3676 int anum;
e62f0680
NC		 3677 const char *tmps2 = POPpconstx;
3678 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3679 TAINT_PROPER("rename");
3680#ifdef HAS_RENAME
baed7233 3681 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3682#else
6b88bc9c 3683 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3684 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3685 anum = 1;
3686 else {
3654eb6c 3687 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3688 (void)UNLINK(tmps2);
3689 if (!(anum = link(tmps, tmps2)))
3690 anum = UNLINK(tmps);
3691 }
a0d0e21e
LW		 3692 }
3693#endif
3694 SETi( anum >= 0 );
3695 RETURN;
3696}
3697
3698PP(pp_link)
3699{
a0d0e21e 3700#ifdef HAS_LINK
370f6000 3701 dSP; dTARGET;
e62f0680
NC		 3702 const char *tmps2 = POPpconstx;
3703 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3704 TAINT_PROPER("link");
146174a9 3705 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3706 RETURN;
a0d0e21e 3707#else
0322a713 3708 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3709#endif
a0d0e21e
LW		 3710}
3711
3712PP(pp_symlink)
3713{
a0d0e21e 3714#ifdef HAS_SYMLINK
9cad6237 3715 dSP; dTARGET;
83003860
NC		 3716 const char *tmps2 = POPpconstx;
3717 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3718 TAINT_PROPER("symlink");
3719 SETi( symlink(tmps, tmps2) >= 0 );
3720 RETURN;
3721#else
cea2e8a9 3722 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3723#endif
3724}
3725
3726PP(pp_readlink)
3727{
76ffd3b9 3728 dSP;
a0d0e21e 3729#ifdef HAS_SYMLINK
76ffd3b9 3730 dTARGET;
10516c54 3731 const char *tmps;
46fc3d4c 3732 char buf[MAXPATHLEN];
a0d0e21e 3733 int len;
46fc3d4c 3734
fb73857a 3735#ifndef INCOMPLETE_TAINTS
3736 TAINT;
3737#endif
10516c54 3738 tmps = POPpconstx;
97dcea33 3739 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3740 EXTEND(SP, 1);
3741 if (len < 0)
3742 RETPUSHUNDEF;
3743 PUSHp(buf, len);
3744 RETURN;
3745#else
3746 EXTEND(SP, 1);
3747 RETSETUNDEF; /* just pretend it's a normal file */
3748#endif
3749}
3750
3751#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3752STATIC int
b464bac0 3753S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3754{
b464bac0 3755 char * const save_filename = filename;
1e422769 3756 char *cmdline;
3757 char *s;
760ac839 3758 PerlIO *myfp;
1e422769 3759 int anum = 1;
a0d0e21e 3760
a02a5408 3761 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
1e422769 3762 strcpy(cmdline, cmd);
3763 strcat(cmdline, " ");
3764 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3765 *s++ = '\\';
3766 *s++ = *filename++;
3767 }
3768 strcpy(s, " 2>&1");
6ad3d225 3769 myfp = PerlProc_popen(cmdline, "r");
1e422769 3770 Safefree(cmdline);
3771
a0d0e21e 3772 if (myfp) {
1e422769 3773 SV *tmpsv = sv_newmortal();
6b88bc9c 3774 /* Need to save/restore 'PL_rs' ?? */
760ac839 3775 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3776 (void)PerlProc_pclose(myfp);
a0d0e21e 3777 if (s != Nullch) {
1e422769 3778 int e;
3779 for (e = 1;
a0d0e21e 3780#ifdef HAS_SYS_ERRLIST
1e422769 3781 e <= sys_nerr
3782#endif
3783 ; e++)
3784 {
3785 /* you don't see this */
3786 char *errmsg =
3787#ifdef HAS_SYS_ERRLIST
3788 sys_errlist[e]
a0d0e21e 3789#else
1e422769 3790 strerror(e)
a0d0e21e 3791#endif
1e422769 3792 ;
3793 if (!errmsg)
3794 break;
3795 if (instr(s, errmsg)) {
3796 SETERRNO(e,0);
3797 return 0;
3798 }
a0d0e21e 3799 }
748a9306 3800 SETERRNO(0,0);
a0d0e21e
LW		 3801#ifndef EACCES
3802#define EACCES EPERM
3803#endif
1e422769 3804 if (instr(s, "cannot make"))
93189314 3805 SETERRNO(EEXIST,RMS_FEX);
1e422769 3806 else if (instr(s, "existing file"))
93189314 3807 SETERRNO(EEXIST,RMS_FEX);
1e422769 3808 else if (instr(s, "ile exists"))
93189314 3809 SETERRNO(EEXIST,RMS_FEX);
1e422769 3810 else if (instr(s, "non-exist"))
93189314 3811 SETERRNO(ENOENT,RMS_FNF);
1e422769 3812 else if (instr(s, "does not exist"))
93189314 3813 SETERRNO(ENOENT,RMS_FNF);
1e422769 3814 else if (instr(s, "not empty"))
93189314 3815 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3816 else if (instr(s, "cannot access"))
93189314 3817 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3818 else
93189314 3819 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3820 return 0;
3821 }
3822 else { /* some mkdirs return no failure indication */
6b88bc9c 3823 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3824 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3825 anum = !anum;
3826 if (anum)
748a9306 3827 SETERRNO(0,0);
a0d0e21e 3828 else
93189314 3829 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3830 }
3831 return anum;
3832 }
3833 else
3834 return 0;
3835}
3836#endif
3837
0c54f65b
RGS		 3838/* This macro removes trailing slashes from a directory name.
3839 * Different operating and file systems take differently to
3840 * trailing slashes. According to POSIX 1003.1 1996 Edition
3841 * any number of trailing slashes should be allowed.
3842 * Thusly we snip them away so that even non-conforming
3843 * systems are happy.
3844 * We should probably do this "filtering" for all
3845 * the functions that expect (potentially) directory names:
3846 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3847 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3848
5c144d81 3849#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3850 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3851 do { \
3852 (len)--; \
3853 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3854 (tmps) = savepvn((tmps), (len)); \
3855 (copy) = TRUE; \
3856 }
3857
a0d0e21e
LW		 3858PP(pp_mkdir)
3859{
39644a26 3860 dSP; dTARGET;
5a211162 3861 int mode;
a0d0e21e
LW		 3862#ifndef HAS_MKDIR
3863 int oldumask;
3864#endif
df25ddba 3865 STRLEN len;
5c144d81 3866 const char *tmps;
df25ddba 3867 bool copy = FALSE;
5a211162
GS		 3868
3869 if (MAXARG > 1)
3870 mode = POPi;
3871 else
3872 mode = 0777;
3873
0c54f65b 3874 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3875
3876 TAINT_PROPER("mkdir");
3877#ifdef HAS_MKDIR
b8ffc8df 3878 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3879#else
3880 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3881 oldumask = PerlLIO_umask(0);
3882 PerlLIO_umask(oldumask);
3883 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3884#endif
df25ddba
JH		 3885 if (copy)
3886 Safefree(tmps);
a0d0e21e
LW		 3887 RETURN;
3888}
3889
3890PP(pp_rmdir)
3891{
39644a26 3892 dSP; dTARGET;
0c54f65b 3893 STRLEN len;
5c144d81 3894 const char *tmps;
0c54f65b 3895 bool copy = FALSE;
a0d0e21e 3896
0c54f65b 3897 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3898 TAINT_PROPER("rmdir");
3899#ifdef HAS_RMDIR
b8ffc8df 3900 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3901#else
0c54f65b 3902 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3903#endif
0c54f65b
RGS		 3904 if (copy)
3905 Safefree(tmps);
a0d0e21e
LW		 3906 RETURN;
3907}
3908
3909/* Directory calls. */
3910
3911PP(pp_open_dir)
3912{
a0d0e21e 3913#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3914 dSP;
10516c54 3915 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3916 GV *gv = (GV*)POPs;
3917 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3918
3919 if (!io)
3920 goto nope;
3921
3922 if (IoDIRP(io))
6ad3d225 3923 PerlDir_close(IoDIRP(io));
b8ffc8df 3924 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3925 goto nope;
3926
3927 RETPUSHYES;
3928nope:
3929 if (!errno)
93189314 3930 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3931 RETPUSHUNDEF;
3932#else
cea2e8a9 3933 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3934#endif
3935}
3936
3937PP(pp_readdir)
3938{
34b7f128
AMS		 3939#if !defined(Direntry_t) || !defined(HAS_READDIR)
3940 DIE(aTHX_ PL_no_dir_func, "readdir");
3941#else
fd8cd3a3 3942#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3943 Direntry_t *readdir (DIR *);
a0d0e21e 3944#endif
34b7f128
AMS		 3945 dSP;
3946
3947 SV *sv;
f54cb97a 3948 const I32 gimme = GIMME;
34b7f128 3949 GV *gv = (GV *)POPs;
a0d0e21e 3950 register Direntry_t *dp;
a0d0e21e
LW		 3951 register IO *io = GvIOn(gv);
3952
3953 if (!io || !IoDIRP(io))
3954 goto nope;
3955
34b7f128
AMS		 3956 do {
3957 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3958 if (!dp)
3959 break;
a0d0e21e 3960#ifdef DIRNAMLEN
34b7f128 3961 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3962#else
34b7f128 3963 sv = newSVpv(dp->d_name, 0);
fb73857a 3964#endif
3965#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3966 if (!(IoFLAGS(io) & IOf_UNTAINT))
3967 SvTAINTED_on(sv);
a0d0e21e 3968#endif
34b7f128 3969 XPUSHs(sv_2mortal(sv));
a0d0e21e 3970 }
34b7f128
AMS		 3971 while (gimme == G_ARRAY);
3972
3973 if (!dp && gimme != G_ARRAY)
3974 goto nope;
3975
a0d0e21e
LW		 3976 RETURN;
3977
3978nope:
3979 if (!errno)
93189314 3980 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3981 if (GIMME == G_ARRAY)
3982 RETURN;
3983 else
3984 RETPUSHUNDEF;
a0d0e21e
LW		 3985#endif
3986}
3987
3988PP(pp_telldir)
3989{
a0d0e21e 3990#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3991 dVAR; dSP; dTARGET;
968dcd91
JH		 3992 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3993 /* XXX netbsd still seemed to.
3994 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3995 --JHI 1999-Feb-02 */
3996# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3997 long telldir (DIR *);
dfe9444c 3998# endif
a0d0e21e
LW		 3999 GV *gv = (GV*)POPs;
4000 register IO *io = GvIOn(gv);
4001
4002 if (!io || !IoDIRP(io))
4003 goto nope;
4004
6ad3d225 4005 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 4006 RETURN;
4007nope:
4008 if (!errno)
93189314 4009 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4010 RETPUSHUNDEF;
4011#else
cea2e8a9 4012 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 4013#endif
4014}
4015
4016PP(pp_seekdir)
4017{
a0d0e21e 4018#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 4019 dSP;
a0d0e21e
LW		 4020 long along = POPl;
4021 GV *gv = (GV*)POPs;
4022 register IO *io = GvIOn(gv);
4023
4024 if (!io || !IoDIRP(io))
4025 goto nope;
4026
6ad3d225 4027 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4028
4029 RETPUSHYES;
4030nope:
4031 if (!errno)
93189314 4032 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4033 RETPUSHUNDEF;
4034#else
cea2e8a9 4035 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4036#endif
4037}
4038
4039PP(pp_rewinddir)
4040{
a0d0e21e 4041#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4042 dSP;
a0d0e21e
LW		 4043 GV *gv = (GV*)POPs;
4044 register IO *io = GvIOn(gv);
4045
4046 if (!io || !IoDIRP(io))
4047 goto nope;
4048
6ad3d225 4049 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4050 RETPUSHYES;
4051nope:
4052 if (!errno)
93189314 4053 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4054 RETPUSHUNDEF;
4055#else
cea2e8a9 4056 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4057#endif
4058}
4059
4060PP(pp_closedir)
4061{
a0d0e21e 4062#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4063 dSP;
a0d0e21e
LW		 4064 GV *gv = (GV*)POPs;
4065 register IO *io = GvIOn(gv);
4066
4067 if (!io || !IoDIRP(io))
4068 goto nope;
4069
4070#ifdef VOID_CLOSEDIR
6ad3d225 4071 PerlDir_close(IoDIRP(io));
a0d0e21e 4072#else
6ad3d225 4073 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4074 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4075 goto nope;
748a9306 4076 }
a0d0e21e
LW		 4077#endif
4078 IoDIRP(io) = 0;
4079
4080 RETPUSHYES;
4081nope:
4082 if (!errno)
93189314 4083 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4084 RETPUSHUNDEF;
4085#else
cea2e8a9 4086 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4087#endif
4088}
4089
4090/* Process control. */
4091
4092PP(pp_fork)
4093{
44a8e56a 4094#ifdef HAS_FORK
39644a26 4095 dSP; dTARGET;
761237fe 4096 Pid_t childpid;
a0d0e21e
LW		 4097 GV *tmpgv;
4098
4099 EXTEND(SP, 1);
45bc9206 4100 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4101 childpid = PerlProc_fork();
a0d0e21e
LW		 4102 if (childpid < 0)
4103 RETSETUNDEF;
4104 if (!childpid) {
306196c3
MS		 4105 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4106 SvREADONLY_off(GvSV(tmpgv));
146174a9 4107 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4108 SvREADONLY_on(GvSV(tmpgv));
4109 }
4d76a344
RGS		 4110#ifdef THREADS_HAVE_PIDS
4111 PL_ppid = (IV)getppid();
4112#endif
3280af22 4113 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4114 }
4115 PUSHi(childpid);
4116 RETURN;
4117#else
146174a9 4118# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4119 dSP; dTARGET;
146174a9
CB		 4120 Pid_t childpid;
4121
4122 EXTEND(SP, 1);
4123 PERL_FLUSHALL_FOR_CHILD;
4124 childpid = PerlProc_fork();
60fa28ff
GS		 4125 if (childpid == -1)
4126 RETSETUNDEF;
146174a9
CB		 4127 PUSHi(childpid);
4128 RETURN;
4129# else
0322a713 4130 DIE(aTHX_ PL_no_func, "fork");
146174a9 4131# endif
a0d0e21e
LW		 4132#endif
4133}
4134
4135PP(pp_wait)
4136{
301e8125 4137#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4138 dSP; dTARGET;
761237fe 4139 Pid_t childpid;
a0d0e21e 4140 int argflags;
a0d0e21e 4141
4ffa73a3
JH		 4142 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4143 childpid = wait4pid(-1, &argflags, 0);
4144 else {
4145 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4146 errno == EINTR) {
4147 PERL_ASYNC_CHECK();
4148 }
0a0ada86 4149 }
68a29c53
GS		 4150# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4151 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4152 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4153# else
2fbb330f 4154 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4155# endif
44a8e56a 4156 XPUSHi(childpid);
a0d0e21e
LW		 4157 RETURN;
4158#else
0322a713 4159 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4160#endif
4161}
4162
4163PP(pp_waitpid)
4164{
301e8125 4165#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4166 dSP; dTARGET;
2ec0bfb3
SG		 4167 Pid_t pid;
4168 Pid_t result;
a0d0e21e
LW		 4169 int optype;
4170 int argflags;
a0d0e21e 4171
a0d0e21e 4172 optype = POPi;
2ec0bfb3 4173 pid = TOPi;
4ffa73a3 4174 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4175 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4176 else {
2ec0bfb3 4177 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4178 errno == EINTR) {
4179 PERL_ASYNC_CHECK();
4180 }
0a0ada86 4181 }
68a29c53
GS		 4182# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4183 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4184 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4185# else
2fbb330f 4186 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4187# endif
2ec0bfb3 4188 SETi(result);
a0d0e21e
LW		 4189 RETURN;
4190#else
0322a713 4191 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4192#endif
4193}
4194
4195PP(pp_system)
4196{
39644a26 4197 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4198 I32 value;
76ffd3b9 4199 int result;
a0d0e21e 4200
bbd7eb8a
RD		 4201 if (PL_tainting) {
4202 TAINT_ENV();
4203 while (++MARK <= SP) {
10516c54 4204 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4205 if (PL_tainted)
bbd7eb8a
RD		 4206 break;
4207 }
4208 MARK = ORIGMARK;
5a445156 4209 TAINT_PROPER("system");
a0d0e21e 4210 }
45bc9206 4211 PERL_FLUSHALL_FOR_CHILD;
273b0206 4212#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4213 {
eb160463
GS		 4214 Pid_t childpid;
4215 int pp[2];
27da23d5 4216 I32 did_pipes = 0;
eb160463
GS		 4217
4218 if (PerlProc_pipe(pp) >= 0)
4219 did_pipes = 1;
4220 while ((childpid = PerlProc_fork()) == -1) {
4221 if (errno != EAGAIN) {
4222 value = -1;
4223 SP = ORIGMARK;
4224 PUSHi(value);
4225 if (did_pipes) {
4226 PerlLIO_close(pp[0]);
4227 PerlLIO_close(pp[1]);
4228 }
4229 RETURN;
4230 }
4231 sleep(5);
4232 }
4233 if (childpid > 0) {
4234 Sigsave_t ihand,qhand; /* place to save signals during system() */
4235 int status;
4236
4237 if (did_pipes)
4238 PerlLIO_close(pp[1]);
64ca3a65 4239#ifndef PERL_MICRO
8aad04aa
JH		 4240 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4241 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4242#endif
eb160463
GS		 4243 do {
4244 result = wait4pid(childpid, &status, 0);
4245 } while (result == -1 && errno == EINTR);
64ca3a65 4246#ifndef PERL_MICRO
eb160463
GS		 4247 (void)rsignal_restore(SIGINT, &ihand);
4248 (void)rsignal_restore(SIGQUIT, &qhand);
4249#endif
37038d91 4250 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4251 do_execfree(); /* free any memory child malloced on fork */
4252 SP = ORIGMARK;
4253 if (did_pipes) {
4254 int errkid;
4255 int n = 0, n1;
4256
4257 while (n < sizeof(int)) {
4258 n1 = PerlLIO_read(pp[0],
4259 (void*)(((char*)&errkid)+n),
4260 (sizeof(int)) - n);
4261 if (n1 <= 0)
4262 break;
4263 n += n1;
4264 }
4265 PerlLIO_close(pp[0]);
4266 if (n) { /* Error */
4267 if (n != sizeof(int))
4268 DIE(aTHX_ "panic: kid popen errno read");
4269 errno = errkid; /* Propagate errno from kid */
37038d91 4270 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4271 }
4272 }
4273 PUSHi(STATUS_CURRENT);
4274 RETURN;
4275 }
4276 if (did_pipes) {
4277 PerlLIO_close(pp[0]);
d5a9bfb0 4278#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4279 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4280#endif
eb160463 4281 }
e0a1f643
JH		 4282 if (PL_op->op_flags & OPf_STACKED) {
4283 SV *really = *++MARK;
4284 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4285 }
4286 else if (SP - MARK != 1)
4287 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4288 else {
8c074e2a 4289 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4290 }
4291 PerlProc__exit(-1);
d5a9bfb0 4292 }
c3293030 4293#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4294 PL_statusvalue = 0;
4295 result = 0;
911d147d 4296 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4297 SV *really = *++MARK;
a0fd4948 4298# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4299 value = (I32)do_aspawn(really, MARK, SP);
4300# else
c5be433b 4301 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4302# endif
a0d0e21e 4303 }
54725af6 4304 else if (SP - MARK != 1) {
a0fd4948 4305# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4306 value = (I32)do_aspawn(Nullsv, MARK, SP);
4307# else
c5be433b 4308 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4309# endif
4310 }
a0d0e21e 4311 else {
8c074e2a 4312 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4313 }
922b1888
GS		 4314 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4315 result = 1;
2fbb330f 4316 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4317 do_execfree();
4318 SP = ORIGMARK;
922b1888 4319 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4320#endif /* !FORK or VMS */
4321 RETURN;
4322}
4323
4324PP(pp_exec)
4325{
39644a26 4326 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4327 I32 value;
4328
bbd7eb8a
RD		 4329 if (PL_tainting) {
4330 TAINT_ENV();
4331 while (++MARK <= SP) {
10516c54 4332 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4333 if (PL_tainted)
bbd7eb8a
RD		 4334 break;
4335 }
4336 MARK = ORIGMARK;
5a445156 4337 TAINT_PROPER("exec");
bbd7eb8a 4338 }
45bc9206 4339 PERL_FLUSHALL_FOR_CHILD;
533c011a 4340 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4341 SV *really = *++MARK;
4342 value = (I32)do_aexec(really, MARK, SP);
4343 }
4344 else if (SP - MARK != 1)
4345#ifdef VMS
4346 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4347#else
092bebab
JH		 4348# ifdef __OPEN_VM
4349 {
c5be433b 4350 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4351 value = 0;
4352 }
4353# else
a0d0e21e 4354 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4355# endif
a0d0e21e
LW		 4356#endif
4357 else {
a0d0e21e 4358#ifdef VMS
8c074e2a 4359 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4360#else
092bebab 4361# ifdef __OPEN_VM
8c074e2a 4362 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4363 value = 0;
4364# else
8c074e2a 4365 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4366# endif
a0d0e21e
LW		 4367#endif
4368 }
146174a9 4369
a0d0e21e
LW		 4370 SP = ORIGMARK;
4371 PUSHi(value);
4372 RETURN;
4373}
4374
4375PP(pp_kill)
4376{
9cad6237 4377#ifdef HAS_KILL
39644a26 4378 dSP; dMARK; dTARGET;
a0d0e21e 4379 I32 value;
533c011a 4380 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4381 SP = MARK;
4382 PUSHi(value);
4383 RETURN;
4384#else
0322a713 4385 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4386#endif
4387}
4388
4389PP(pp_getppid)
4390{
4391#ifdef HAS_GETPPID
39644a26 4392 dSP; dTARGET;
4d76a344 4393# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4394 if (PL_ppid != 1 && getppid() == 1)
4395 /* maybe the parent process has died. Refresh ppid cache */
4396 PL_ppid = 1;
4d76a344
RGS		 4397 XPUSHi( PL_ppid );
4398# else
a0d0e21e 4399 XPUSHi( getppid() );
4d76a344 4400# endif
a0d0e21e
LW		 4401 RETURN;
4402#else
cea2e8a9 4403 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4404#endif
4405}
4406
4407PP(pp_getpgrp)
4408{
4409#ifdef HAS_GETPGRP
39644a26 4410 dSP; dTARGET;
d8a83dd3 4411 Pid_t pid;
9853a804 4412 Pid_t pgrp;
a0d0e21e
LW		 4413
4414 if (MAXARG < 1)
4415 pid = 0;
4416 else
4417 pid = SvIVx(POPs);
c3293030 4418#ifdef BSD_GETPGRP
9853a804 4419 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4420#else
146174a9 4421 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4422 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4423 pgrp = getpgrp();
a0d0e21e 4424#endif
9853a804 4425 XPUSHi(pgrp);
a0d0e21e
LW		 4426 RETURN;
4427#else
cea2e8a9 4428 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4429#endif
4430}
4431
4432PP(pp_setpgrp)
4433{
4434#ifdef HAS_SETPGRP
39644a26 4435 dSP; dTARGET;
d8a83dd3
JH		 4436 Pid_t pgrp;
4437 Pid_t pid;
a0d0e21e
LW		 4438 if (MAXARG < 2) {
4439 pgrp = 0;
4440 pid = 0;
4441 }
4442 else {
4443 pgrp = POPi;
4444 pid = TOPi;
4445 }
4446
4447 TAINT_PROPER("setpgrp");
c3293030
IZ		 4448#ifdef BSD_SETPGRP
4449 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4450#else
146174a9
CB		 4451 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4452 || (pid != 0 && pid != PerlProc_getpid()))
4453 {
4454 DIE(aTHX_ "setpgrp can't take arguments");
4455 }
a0d0e21e
LW		 4456 SETi( setpgrp() >= 0 );
4457#endif /* USE_BSDPGRP */
4458 RETURN;
4459#else
cea2e8a9 4460 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4461#endif
4462}
4463
4464PP(pp_getpriority)
4465{
a0d0e21e 4466#ifdef HAS_GETPRIORITY
9cad6237 4467 dSP; dTARGET;
d05c1ba0
JH		 4468 int who = POPi;
4469 int which = TOPi;
a0d0e21e
LW		 4470 SETi( getpriority(which, who) );
4471 RETURN;
4472#else
cea2e8a9 4473 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4474#endif
4475}
4476
4477PP(pp_setpriority)
4478{
a0d0e21e 4479#ifdef HAS_SETPRIORITY
9cad6237 4480 dSP; dTARGET;
d05c1ba0
JH		 4481 int niceval = POPi;
4482 int who = POPi;
4483 int which = TOPi;
a0d0e21e
LW		 4484 TAINT_PROPER("setpriority");
4485 SETi( setpriority(which, who, niceval) >= 0 );
4486 RETURN;
4487#else
cea2e8a9 4488 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4489#endif
4490}
4491
4492/* Time calls. */
4493
4494PP(pp_time)
4495{
39644a26 4496 dSP; dTARGET;
cbdc8872 4497#ifdef BIG_TIME
4498 XPUSHn( time(Null(Time_t*)) );
4499#else
a0d0e21e 4500 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4501#endif
a0d0e21e
LW		 4502 RETURN;
4503}
4504
a0d0e21e
LW		 4505PP(pp_tms)
4506{
9cad6237 4507#ifdef HAS_TIMES
39644a26 4508 dSP;
a0d0e21e 4509 EXTEND(SP, 4);
a0d0e21e 4510#ifndef VMS
3280af22 4511 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4512#else
6b88bc9c 4513 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4514 /* struct tms, though same data */
4515 /* is returned. */
a0d0e21e
LW		 4516#endif
4517
5311654c 4518 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4519 if (GIMME == G_ARRAY) {
5311654c
JH		 4520 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4521 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4522 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4523 }
4524 RETURN;
9cad6237 4525#else
2f42fcb0
JH		 4526# ifdef PERL_MICRO
4527 dSP;
4528 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4529 EXTEND(SP, 4);
4530 if (GIMME == G_ARRAY) {
4531 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4532 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4533 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4534 }
4535 RETURN;
4536# else
9cad6237 4537 DIE(aTHX_ "times not implemented");
2f42fcb0 4538# endif
55497cff 4539#endif /* HAS_TIMES */
a0d0e21e
LW		 4540}
4541
4542PP(pp_localtime)
4543{
cea2e8a9 4544 return pp_gmtime();
a0d0e21e
LW		 4545}
4546
a4323dee 4547#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4548static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4549{
4550 auto time_t T;
4551 auto struct tm *P;
4552
4553 /* No workarounds in the valid range */
4554 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4555 return (localtime (tp));
4556
4557 /* This edge case is to workaround the undefined behaviour, where the
4558 * TIMEZONE makes the time go beyond the defined range.
4559 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4560 * If there is a negative offset in TZ, like MET-1METDST, some broken
4561 * implementations of localtime () (like AIX 5.2) barf with bogus
4562 * return values:
4563 * 0x7fffffff gmtime 2038-01-19 03:14:07
4564 * 0x7fffffff localtime 1901-12-13 21:45:51
4565 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4566 * 0x3c19137f gmtime 2001-12-13 20:45:51
4567 * 0x3c19137f localtime 2001-12-13 21:45:51
4568 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4569 * Given that legal timezones are typically between GMT-12 and GMT+12
4570 * we turn back the clock 23 hours before calling the localtime
4571 * function, and add those to the return value. This will never cause
3574fba9 4572 * day wrapping problems, since the edge case is Tue Jan *19*
a4323dee
MB		 4573 */
4574 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4575 P = localtime (&T);
4576 P->tm_hour += 23;
4577 if (P->tm_hour >= 24) {
4578 P->tm_hour -= 24;
3574fba9
CW		 4579 P->tm_mday++; /* 18 -> 19 */
4580 P->tm_wday++; /* Mon -> Tue */
4581 P->tm_yday++; /* 18 -> 19 */
a4323dee
MB		 4582 }
4583 return (P);
4584} /* S_my_localtime */
4585#endif
4586
a0d0e21e
LW		 4587PP(pp_gmtime)
4588{
39644a26 4589 dSP;
a0d0e21e 4590 Time_t when;
bfed75c6 4591 const struct tm *tmbuf;
27da23d5
JH		 4592 static const char * const dayname[] =
4593 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4594 static const char * const monname[] =
4595 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4596 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4597
4598 if (MAXARG < 1)
4599 (void)time(&when);
4600 else
cbdc8872 4601#ifdef BIG_TIME
4602 when = (Time_t)SvNVx(POPs);
4603#else
a0d0e21e 4604 when = (Time_t)SvIVx(POPs);
cbdc8872 4605#endif
a0d0e21e 4606
533c011a 4607 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4608#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4609 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4610#else
a0d0e21e 4611 tmbuf = localtime(&when);
a4323dee 4612#endif
a0d0e21e
LW		 4613 else
4614 tmbuf = gmtime(&when);
4615
a0d0e21e 4616 if (GIMME != G_ARRAY) {
46fc3d4c 4617 SV *tsv;
9a5ff6d9
AB		 4618 EXTEND(SP, 1);
4619 EXTEND_MORTAL(1);
a0d0e21e
LW		 4620 if (!tmbuf)
4621 RETPUSHUNDEF;
be28567c 4622 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4623 dayname[tmbuf->tm_wday],
4624 monname[tmbuf->tm_mon],
be28567c
GS		 4625 tmbuf->tm_mday,
4626 tmbuf->tm_hour,
4627 tmbuf->tm_min,
4628 tmbuf->tm_sec,
4629 tmbuf->tm_year + 1900);
46fc3d4c 4630 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4631 }
4632 else if (tmbuf) {
9a5ff6d9
AB		 4633 EXTEND(SP, 9);
4634 EXTEND_MORTAL(9);
4635 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4636 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4637 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4638 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4639 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4640 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4641 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4642 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4643 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4644 }
4645 RETURN;
4646}
4647
4648PP(pp_alarm)
4649{
9cad6237 4650#ifdef HAS_ALARM
39644a26 4651 dSP; dTARGET;
a0d0e21e 4652 int anum;
a0d0e21e
LW		 4653 anum = POPi;
4654 anum = alarm((unsigned int)anum);
4655 EXTEND(SP, 1);
4656 if (anum < 0)
4657 RETPUSHUNDEF;
c6419e06 4658 PUSHi(anum);
a0d0e21e
LW		 4659 RETURN;
4660#else
0322a713 4661 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4662#endif
4663}
4664
4665PP(pp_sleep)
4666{
39644a26 4667 dSP; dTARGET;
a0d0e21e
LW		 4668 I32 duration;
4669 Time_t lasttime;
4670 Time_t when;
4671
4672 (void)time(&lasttime);
4673 if (MAXARG < 1)
76e3520e 4674 PerlProc_pause();
a0d0e21e
LW		 4675 else {
4676 duration = POPi;
76e3520e 4677 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4678 }
4679 (void)time(&when);
4680 XPUSHi(when - lasttime);
4681 RETURN;
4682}
4683
4684/* Shared memory. */
4685
4686PP(pp_shmget)
4687{
cea2e8a9 4688 return pp_semget();
a0d0e21e
LW		 4689}
4690
4691PP(pp_shmctl)
4692{
cea2e8a9 4693 return pp_semctl();
a0d0e21e
LW		 4694}
4695
4696PP(pp_shmread)
4697{
cea2e8a9 4698 return pp_shmwrite();
a0d0e21e
LW		 4699}
4700
4701PP(pp_shmwrite)
4702{
4703#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4704 dSP; dMARK; dTARGET;
533c011a 4705 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4706 SP = MARK;
4707 PUSHi(value);
4708 RETURN;
4709#else
cea2e8a9 4710 return pp_semget();
a0d0e21e
LW		 4711#endif
4712}
4713
4714/* Message passing. */
4715
4716PP(pp_msgget)
4717{
cea2e8a9 4718 return pp_semget();
a0d0e21e
LW		 4719}
4720
4721PP(pp_msgctl)
4722{
cea2e8a9 4723 return pp_semctl();
a0d0e21e
LW		 4724}
4725
4726PP(pp_msgsnd)
4727{
4728#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4729 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4730 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4731 SP = MARK;
4732 PUSHi(value);
4733 RETURN;
4734#else
cea2e8a9 4735 return pp_semget();
a0d0e21e
LW		 4736#endif
4737}
4738
4739PP(pp_msgrcv)
4740{
4741#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4742 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4743 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4744 SP = MARK;
4745 PUSHi(value);
4746 RETURN;
4747#else
cea2e8a9 4748 return pp_semget();
a0d0e21e
LW		 4749#endif
4750}
4751
4752/* Semaphores. */
4753
4754PP(pp_semget)
4755{
4756#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4757 dSP; dMARK; dTARGET;
533c011a 4758 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4759 SP = MARK;
4760 if (anum == -1)
4761 RETPUSHUNDEF;
4762 PUSHi(anum);
4763 RETURN;
4764#else
cea2e8a9 4765 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4766#endif
4767}
4768
4769PP(pp_semctl)
4770{
4771#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4772 dSP; dMARK; dTARGET;
533c011a 4773 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4774 SP = MARK;
4775 if (anum == -1)
4776 RETSETUNDEF;
4777 if (anum != 0) {
4778 PUSHi(anum);
4779 }
4780 else {
8903cb82 4781 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4782 }
4783 RETURN;
4784#else
cea2e8a9 4785 return pp_semget();
a0d0e21e
LW		 4786#endif
4787}
4788
4789PP(pp_semop)
4790{
4791#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4792 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4793 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4794 SP = MARK;
4795 PUSHi(value);
4796 RETURN;
4797#else
cea2e8a9 4798 return pp_semget();
a0d0e21e
LW		 4799#endif
4800}
4801
4802/* Get system info. */
4803
4804PP(pp_ghbyname)
4805{
693762b4 4806#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4807 return pp_ghostent();
a0d0e21e 4808#else
cea2e8a9 4809 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4810#endif
4811}
4812
4813PP(pp_ghbyaddr)
4814{
693762b4 4815#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4816 return pp_ghostent();
a0d0e21e 4817#else
cea2e8a9 4818 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4819#endif
4820}
4821
4822PP(pp_ghostent)
4823{
693762b4 4824#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4825 dSP;
533c011a 4826 I32 which = PL_op->op_type;
a0d0e21e
LW		 4827 register char **elem;
4828 register SV *sv;
dc45a647 4829#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4830 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4831 struct hostent *gethostbyname(Netdb_name_t);
4832 struct hostent *gethostent(void);
a0d0e21e
LW		 4833#endif
4834 struct hostent *hent;
4835 unsigned long len;
4836
4837 EXTEND(SP, 10);
edd309b7 4838 if (which == OP_GHBYNAME) {
dc45a647 4839#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4840 char* name = POPpbytex;
4841 hent = PerlSock_gethostbyname(name);
dc45a647 4842#else
cea2e8a9 4843 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4844#endif
edd309b7 4845 }
a0d0e21e 4846 else if (which == OP_GHBYADDR) {
dc45a647 4847#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4848 int addrtype = POPi;
748a9306 4849 SV *addrsv = POPs;
a0d0e21e 4850 STRLEN addrlen;
595ae481 4851 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4852
4599a1de 4853 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4854#else
cea2e8a9 4855 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4856#endif
a0d0e21e
LW		 4857 }
4858 else
4859#ifdef HAS_GETHOSTENT
6ad3d225 4860 hent = PerlSock_gethostent();
a0d0e21e 4861#else
cea2e8a9 4862 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4863#endif
4864
4865#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4866 if (!hent) {
4867#ifdef USE_REENTRANT_API
4868# ifdef USE_GETHOSTENT_ERRNO
4869 h_errno = PL_reentrant_buffer->_gethostent_errno;
4870# endif
4871#endif
37038d91 4872 STATUS_UNIX_SET(h_errno);
10bc17b6 4873 }
a0d0e21e
LW		 4874#endif
4875
4876 if (GIMME != G_ARRAY) {
4877 PUSHs(sv = sv_newmortal());
4878 if (hent) {
4879 if (which == OP_GHBYNAME) {
fd0af264 4880 if (hent->h_addr)
4881 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4882 }
4883 else
4884 sv_setpv(sv, (char*)hent->h_name);
4885 }
4886 RETURN;
4887 }
4888
4889 if (hent) {
3280af22 4890 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4891 sv_setpv(sv, (char*)hent->h_name);
3280af22 4892 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4893 for (elem = hent->h_aliases; elem && *elem; elem++) {
4894 sv_catpv(sv, *elem);
4895 if (elem[1])
4896 sv_catpvn(sv, " ", 1);
4897 }
3280af22 4898 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4899 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4900 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4901 len = hent->h_length;
1e422769 4902 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4903#ifdef h_addr
4904 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4905 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4906 sv_setpvn(sv, *elem, len);
4907 }
4908#else
6b88bc9c 4909 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4910 if (hent->h_addr)
4911 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4912#endif /* h_addr */
4913 }
4914 RETURN;
4915#else
cea2e8a9 4916 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4917#endif
4918}
4919
4920PP(pp_gnbyname)
4921{
693762b4 4922#ifdef HAS_GETNETBYNAME
cea2e8a9 4923 return pp_gnetent();
a0d0e21e 4924#else
cea2e8a9 4925 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4926#endif
4927}
4928
4929PP(pp_gnbyaddr)
4930{
693762b4 4931#ifdef HAS_GETNETBYADDR
cea2e8a9 4932 return pp_gnetent();
a0d0e21e 4933#else
cea2e8a9 4934 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4935#endif
4936}
4937
4938PP(pp_gnetent)
4939{
693762b4 4940#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4941 dSP;
533c011a 4942 I32 which = PL_op->op_type;
a0d0e21e
LW		 4943 register char **elem;
4944 register SV *sv;
dc45a647 4945#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4946 struct netent *getnetbyaddr(Netdb_net_t, int);
4947 struct netent *getnetbyname(Netdb_name_t);
4948 struct netent *getnetent(void);
8ac85365 4949#endif
a0d0e21e
LW		 4950 struct netent *nent;
4951
edd309b7 4952 if (which == OP_GNBYNAME){
dc45a647 4953#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4954 char *name = POPpbytex;
4955 nent = PerlSock_getnetbyname(name);
dc45a647 4956#else
cea2e8a9 4957 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4958#endif
edd309b7 4959 }
a0d0e21e 4960 else if (which == OP_GNBYADDR) {
dc45a647 4961#ifdef HAS_GETNETBYADDR
a0d0e21e 4962 int addrtype = POPi;
3bb7c1b4 4963 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4964 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4965#else
cea2e8a9 4966 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4967#endif
a0d0e21e
LW		 4968 }
4969 else
dc45a647 4970#ifdef HAS_GETNETENT
76e3520e 4971 nent = PerlSock_getnetent();
dc45a647 4972#else
cea2e8a9 4973 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4974#endif
a0d0e21e 4975
10bc17b6
JH		 4976#ifdef HOST_NOT_FOUND
4977 if (!nent) {
4978#ifdef USE_REENTRANT_API
4979# ifdef USE_GETNETENT_ERRNO
4980 h_errno = PL_reentrant_buffer->_getnetent_errno;
4981# endif
4982#endif
37038d91 4983 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4984 }
4985#endif
4986
a0d0e21e
LW		 4987 EXTEND(SP, 4);
4988 if (GIMME != G_ARRAY) {
4989 PUSHs(sv = sv_newmortal());
4990 if (nent) {
4991 if (which == OP_GNBYNAME)
1e422769 4992 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4993 else
4994 sv_setpv(sv, nent->n_name);
4995 }
4996 RETURN;
4997 }
4998
4999 if (nent) {
3280af22 5000 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5001 sv_setpv(sv, nent->n_name);
3280af22 5002 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5003 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5004 sv_catpv(sv, *elem);
5005 if (elem[1])
5006 sv_catpvn(sv, " ", 1);
5007 }
3280af22 5008 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5009 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 5010 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5011 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 5012 }
5013
5014 RETURN;
5015#else
cea2e8a9 5016 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 5017#endif
5018}
5019
5020PP(pp_gpbyname)
5021{
693762b4 5022#ifdef HAS_GETPROTOBYNAME
cea2e8a9 5023 return pp_gprotoent();
a0d0e21e 5024#else
cea2e8a9 5025 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 5026#endif
5027}
5028
5029PP(pp_gpbynumber)
5030{
693762b4 5031#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 5032 return pp_gprotoent();
a0d0e21e 5033#else
cea2e8a9 5034 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 5035#endif
5036}
5037
5038PP(pp_gprotoent)
5039{
693762b4 5040#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 5041 dSP;
533c011a 5042 I32 which = PL_op->op_type;
a0d0e21e 5043 register char **elem;
301e8125 5044 register SV *sv;
dc45a647 5045#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5046 struct protoent *getprotobyname(Netdb_name_t);
5047 struct protoent *getprotobynumber(int);
5048 struct protoent *getprotoent(void);
8ac85365 5049#endif
a0d0e21e
LW		 5050 struct protoent *pent;
5051
edd309b7 5052 if (which == OP_GPBYNAME) {
e5c9fcd0 5053#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 5054 char* name = POPpbytex;
5055 pent = PerlSock_getprotobyname(name);
e5c9fcd0 5056#else
cea2e8a9 5057 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 5058#endif
edd309b7
JH		 5059 }
5060 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 5061#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 5062 int number = POPi;
5063 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 5064#else
edd309b7 5065 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 5066#endif
edd309b7 5067 }
a0d0e21e 5068 else
e5c9fcd0 5069#ifdef HAS_GETPROTOENT
6ad3d225 5070 pent = PerlSock_getprotoent();
e5c9fcd0 5071#else
cea2e8a9 5072 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5073#endif
a0d0e21e
LW		 5074
5075 EXTEND(SP, 3);
5076 if (GIMME != G_ARRAY) {
5077 PUSHs(sv = sv_newmortal());
5078 if (pent) {
5079 if (which == OP_GPBYNAME)
1e422769 5080 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5081 else
5082 sv_setpv(sv, pent->p_name);
5083 }
5084 RETURN;
5085 }
5086
5087 if (pent) {
3280af22 5088 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5089 sv_setpv(sv, pent->p_name);
3280af22 5090 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5091 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5092 sv_catpv(sv, *elem);
5093 if (elem[1])
5094 sv_catpvn(sv, " ", 1);
5095 }
3280af22 5096 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5097 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5098 }
5099
5100 RETURN;
5101#else
cea2e8a9 5102 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5103#endif
5104}
5105
5106PP(pp_gsbyname)
5107{
9ec75305 5108#ifdef HAS_GETSERVBYNAME
cea2e8a9 5109 return pp_gservent();
a0d0e21e 5110#else
cea2e8a9 5111 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5112#endif
5113}
5114
5115PP(pp_gsbyport)
5116{
9ec75305 5117#ifdef HAS_GETSERVBYPORT
cea2e8a9 5118 return pp_gservent();
a0d0e21e 5119#else
cea2e8a9 5120 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5121#endif
5122}
5123
5124PP(pp_gservent)
5125{
693762b4 5126#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5127 dSP;
533c011a 5128 I32 which = PL_op->op_type;
a0d0e21e
LW		 5129 register char **elem;
5130 register SV *sv;
dc45a647 5131#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5132 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5133 struct servent *getservbyport(int, Netdb_name_t);
5134 struct servent *getservent(void);
8ac85365 5135#endif
a0d0e21e
LW		 5136 struct servent *sent;
5137
5138 if (which == OP_GSBYNAME) {
dc45a647 5139#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5140 char *proto = POPpbytex;
5141 char *name = POPpbytex;
a0d0e21e
LW		 5142
5143 if (proto && !*proto)
5144 proto = Nullch;
5145
6ad3d225 5146 sent = PerlSock_getservbyname(name, proto);
dc45a647 5147#else
cea2e8a9 5148 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5149#endif
a0d0e21e
LW		 5150 }
5151 else if (which == OP_GSBYPORT) {
dc45a647 5152#ifdef HAS_GETSERVBYPORT
42e0c139 5153 char *proto = POPpbytex;
eb160463 5154 unsigned short port = (unsigned short)POPu;
a0d0e21e 5155
2b872cca
SR		 5156 if (proto && !*proto)
5157 proto = Nullch;
5158
36477c24 5159#ifdef HAS_HTONS
6ad3d225 5160 port = PerlSock_htons(port);
36477c24 5161#endif
6ad3d225 5162 sent = PerlSock_getservbyport(port, proto);
dc45a647 5163#else
cea2e8a9 5164 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5165#endif
a0d0e21e
LW		 5166 }
5167 else
e5c9fcd0 5168#ifdef HAS_GETSERVENT
6ad3d225 5169 sent = PerlSock_getservent();
e5c9fcd0 5170#else
cea2e8a9 5171 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5172#endif
a0d0e21e
LW		 5173
5174 EXTEND(SP, 4);
5175 if (GIMME != G_ARRAY) {
5176 PUSHs(sv = sv_newmortal());
5177 if (sent) {
5178 if (which == OP_GSBYNAME) {
5179#ifdef HAS_NTOHS
6ad3d225 5180 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5181#else
1e422769 5182 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5183#endif
5184 }
5185 else
5186 sv_setpv(sv, sent->s_name);
5187 }
5188 RETURN;
5189 }
5190
5191 if (sent) {
3280af22 5192 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5193 sv_setpv(sv, sent->s_name);
3280af22 5194 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5195 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5196 sv_catpv(sv, *elem);
5197 if (elem[1])
5198 sv_catpvn(sv, " ", 1);
5199 }
3280af22 5200 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5201#ifdef HAS_NTOHS
76e3520e 5202 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5203#else
1e422769 5204 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5205#endif
3280af22 5206 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5207 sv_setpv(sv, sent->s_proto);
5208 }
5209
5210 RETURN;
5211#else
cea2e8a9 5212 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5213#endif
5214}
5215
5216PP(pp_shostent)
5217{
693762b4 5218#ifdef HAS_SETHOSTENT
9cad6237 5219 dSP;
76e3520e 5220 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5221 RETSETYES;
5222#else
cea2e8a9 5223 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5224#endif
5225}
5226
5227PP(pp_snetent)
5228{
693762b4 5229#ifdef HAS_SETNETENT
9cad6237 5230 dSP;
76e3520e 5231 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5232 RETSETYES;
5233#else
cea2e8a9 5234 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5235#endif
5236}
5237
5238PP(pp_sprotoent)
5239{
693762b4 5240#ifdef HAS_SETPROTOENT
9cad6237 5241 dSP;
76e3520e 5242 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5243 RETSETYES;
5244#else
cea2e8a9 5245 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5246#endif
5247}
5248
5249PP(pp_sservent)
5250{
693762b4 5251#ifdef HAS_SETSERVENT
9cad6237 5252 dSP;
76e3520e 5253 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5254 RETSETYES;
5255#else
cea2e8a9 5256 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5257#endif
5258}
5259
5260PP(pp_ehostent)
5261{
693762b4 5262#ifdef HAS_ENDHOSTENT
9cad6237 5263 dSP;
76e3520e 5264 PerlSock_endhostent();
924508f0 5265 EXTEND(SP,1);
a0d0e21e
LW		 5266 RETPUSHYES;
5267#else
cea2e8a9 5268 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5269#endif
5270}
5271
5272PP(pp_enetent)
5273{
693762b4 5274#ifdef HAS_ENDNETENT
9cad6237 5275 dSP;
76e3520e 5276 PerlSock_endnetent();
924508f0 5277 EXTEND(SP,1);
a0d0e21e
LW		 5278 RETPUSHYES;
5279#else
cea2e8a9 5280 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5281#endif
5282}
5283
5284PP(pp_eprotoent)
5285{
693762b4 5286#ifdef HAS_ENDPROTOENT
9cad6237 5287 dSP;
76e3520e 5288 PerlSock_endprotoent();
924508f0 5289 EXTEND(SP,1);
a0d0e21e
LW		 5290 RETPUSHYES;
5291#else
cea2e8a9 5292 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5293#endif
5294}
5295
5296PP(pp_eservent)
5297{
693762b4 5298#ifdef HAS_ENDSERVENT
9cad6237 5299 dSP;
76e3520e 5300 PerlSock_endservent();
924508f0 5301 EXTEND(SP,1);
a0d0e21e
LW		 5302 RETPUSHYES;
5303#else
cea2e8a9 5304 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5305#endif
5306}
5307
5308PP(pp_gpwnam)
5309{
5310#ifdef HAS_PASSWD
cea2e8a9 5311 return pp_gpwent();
a0d0e21e 5312#else
cea2e8a9 5313 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5314#endif
5315}
5316
5317PP(pp_gpwuid)
5318{
5319#ifdef HAS_PASSWD
cea2e8a9 5320 return pp_gpwent();
a0d0e21e 5321#else
cea2e8a9 5322 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5323#endif
5324}
5325
5326PP(pp_gpwent)
5327{
0994c4d0 5328#ifdef HAS_PASSWD
9cad6237 5329 dSP;
533c011a 5330 I32 which = PL_op->op_type;
a0d0e21e 5331 register SV *sv;
e3aefe8d 5332 struct passwd *pwent = NULL;
301e8125 5333 /*
bcf53261
JH		 5334 * We currently support only the SysV getsp* shadow password interface.
5335 * The interface is declared in <shadow.h> and often one needs to link
5336 * with -lsecurity or some such.
5337 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5338 * (and SCO?)
5339 *
5340 * AIX getpwnam() is clever enough to return the encrypted password
5341 * only if the caller (euid?) is root.
5342 *
e549f1c5 5343 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5344 * seem to contain more than one interface for accessing the shadow
5345 * password databases, possibly for compatibility reasons.
3813c136 5346 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5347 * are much more complicated, but also very similar to each other.
5348 *
5349 * <sys/types.h>
5350 * <sys/security.h>
5351 * <prot.h>
5352 * struct pr_passwd *getprpw*();
5353 * The password is in
3813c136
JH		 5354 * char getprpw*(...).ufld.fd_encrypt[]
5355 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5356 *
5357 * <sys/types.h>
5358 * <sys/security.h>
5359 * <prot.h>
5360 * struct es_passwd *getespw*();
5361 * The password is in
5362 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5363 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5364 *
e1920a95 5365 * <userpw.h> (AIX)
e549f1c5
JH		 5366 * struct userpw *getuserpw();
5367 * The password is in
5368 * char *(getuserpw(...)).spw_upw_passwd
5369 * (but the de facto standard getpwnam() should work okay)
5370 *
3813c136 5371 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5372 *
5373 * In HP-UX for getprpw*() the manual page claims that one should include
5374 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5375 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5376 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5377 *
5378 * Note that <sys/security.h> is already probed for, but currently
5379 * it is only included in special cases.
301e8125 5380 *
bcf53261
JH		 5381 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5382 * be preferred interface, even though also the getprpw*() interface
5383 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5384 * One also needs to call set_auth_parameters() in main() before
5385 * doing anything else, whether one is using getespw*() or getprpw*().
5386 *
5387 * Note that accessing the shadow databases can be magnitudes
5388 * slower than accessing the standard databases.
bcf53261
JH		 5389 *
5390 * --jhi
5391 */
a0d0e21e 5392
9e5f0c48
JH		 5393# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5394 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5395 * the pw_comment is left uninitialized. */
5396 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5397# endif
5398
e3aefe8d
JH		 5399 switch (which) {
5400 case OP_GPWNAM:
edd309b7
JH		 5401 {
5402 char* name = POPpbytex;
5403 pwent = getpwnam(name);
5404 }
5405 break;
e3aefe8d 5406 case OP_GPWUID:
edd309b7
JH		 5407 {
5408 Uid_t uid = POPi;
5409 pwent = getpwuid(uid);
5410 }
e3aefe8d
JH		 5411 break;
5412 case OP_GPWENT:
1883634f 5413# ifdef HAS_GETPWENT
e3aefe8d 5414 pwent = getpwent();
faea9016
IRC		 5415#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5416 if (pwent) pwent = getpwnam(pwent->pw_name);
5417#endif
1883634f 5418# else
a45d1c96 5419 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5420# endif
e3aefe8d
JH		 5421 break;
5422 }
8c0bfa08 5423
a0d0e21e
LW		 5424 EXTEND(SP, 10);
5425 if (GIMME != G_ARRAY) {
5426 PUSHs(sv = sv_newmortal());
5427 if (pwent) {
5428 if (which == OP_GPWNAM)
1883634f 5429# if Uid_t_sign <= 0
1e422769 5430 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5431# else
23dcd6c8 5432 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5433# endif
a0d0e21e
LW		 5434 else
5435 sv_setpv(sv, pwent->pw_name);
5436 }
5437 RETURN;
5438 }
5439
5440 if (pwent) {
3280af22 5441 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5442 sv_setpv(sv, pwent->pw_name);
6ee623d5 5443
3280af22 5444 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5445 SvPOK_off(sv);
5446 /* If we have getspnam(), we try to dig up the shadow
5447 * password. If we are underprivileged, the shadow
5448 * interface will set the errno to EACCES or similar,
5449 * and return a null pointer. If this happens, we will
5450 * use the dummy password (usually "*" or "x") from the
5451 * standard password database.
5452 *
5453 * In theory we could skip the shadow call completely
5454 * if euid != 0 but in practice we cannot know which
5455 * security measures are guarding the shadow databases
5456 * on a random platform.
5457 *
5458 * Resist the urge to use additional shadow interfaces.
5459 * Divert the urge to writing an extension instead.
5460 *
5461 * --jhi */
e549f1c5
JH		 5462 /* Some AIX setups falsely(?) detect some getspnam(), which
5463 * has a different API than the Solaris/IRIX one. */
5464# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5465 {
5466 struct spwd *spwent;
5467 int saverrno; /* Save and restore errno so that
5468 * underprivileged attempts seem
5469 * to have never made the unsccessful
5470 * attempt to retrieve the shadow password. */
5471
5472 saverrno = errno;
5473 spwent = getspnam(pwent->pw_name);
5474 errno = saverrno;
5475 if (spwent && spwent->sp_pwdp)
5476 sv_setpv(sv, spwent->sp_pwdp);
5477 }
f1066039 5478# endif
e020c87d 5479# ifdef PWPASSWD
3813c136
JH		 5480 if (!SvPOK(sv)) /* Use the standard password, then. */
5481 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5482# endif
3813c136 5483
1883634f 5484# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5485 /* passwd is tainted because user himself can diddle with it.
5486 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5487 SvTAINTED_on(sv);
1883634f 5488# endif
6ee623d5 5489
3280af22 5490 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5491# if Uid_t_sign <= 0
1e422769 5492 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5493# else
23dcd6c8 5494 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5495# endif
6ee623d5 5496
3280af22 5497 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5498# if Uid_t_sign <= 0
1e422769 5499 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5500# else
23dcd6c8 5501 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5502# endif
3813c136
JH		 5503 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5504 * because of the poor interface of the Perl getpw*(),
5505 * not because there's some standard/convention saying so.
5506 * A better interface would have been to return a hash,
5507 * but we are accursed by our history, alas. --jhi. */
3280af22 5508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5509# ifdef PWCHANGE
1e422769 5510 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5511# else
1883634f
JH		 5512# ifdef PWQUOTA
5513 sv_setiv(sv, (IV)pwent->pw_quota);
5514# else
a1757be1 5515# ifdef PWAGE
a0d0e21e 5516 sv_setpv(sv, pwent->pw_age);
a1757be1 5517# endif
6ee623d5
GS		 5518# endif
5519# endif
6ee623d5 5520
3813c136
JH		 5521 /* pw_class and pw_comment are mutually exclusive--.
5522 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5523 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5524# ifdef PWCLASS
a0d0e21e 5525 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5526# else
5527# ifdef PWCOMMENT
a0d0e21e 5528 sv_setpv(sv, pwent->pw_comment);
1883634f 5529# endif
6ee623d5 5530# endif
6ee623d5 5531
3280af22 5532 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5533# ifdef PWGECOS
a0d0e21e 5534 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5535# endif
5536# ifndef INCOMPLETE_TAINTS
d2719217 5537 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5538 SvTAINTED_on(sv);
1883634f 5539# endif
6ee623d5 5540
3280af22 5541 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5542 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5543
3280af22 5544 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5545 sv_setpv(sv, pwent->pw_shell);
1883634f 5546# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5547 /* pw_shell is tainted because user himself can diddle with it. */
5548 SvTAINTED_on(sv);
1883634f 5549# endif
6ee623d5 5550
1883634f 5551# ifdef PWEXPIRE
6b88bc9c 5552 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5553 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5554# endif
a0d0e21e
LW		 5555 }
5556 RETURN;
5557#else
cea2e8a9 5558 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5559#endif
5560}
5561
5562PP(pp_spwent)
5563{
d493b042 5564#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5565 dSP;
a0d0e21e
LW		 5566 setpwent();
5567 RETPUSHYES;
5568#else
cea2e8a9 5569 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5570#endif
5571}
5572
5573PP(pp_epwent)
5574{
28e8609d 5575#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5576 dSP;
a0d0e21e
LW		 5577 endpwent();
5578 RETPUSHYES;
5579#else
cea2e8a9 5580 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5581#endif
5582}
5583
5584PP(pp_ggrnam)
5585{
5586#ifdef HAS_GROUP
cea2e8a9 5587 return pp_ggrent();
a0d0e21e 5588#else
cea2e8a9 5589 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5590#endif
5591}
5592
5593PP(pp_ggrgid)
5594{
5595#ifdef HAS_GROUP
cea2e8a9 5596 return pp_ggrent();
a0d0e21e 5597#else
cea2e8a9 5598 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5599#endif
5600}
5601
5602PP(pp_ggrent)
5603{
0994c4d0 5604#ifdef HAS_GROUP
9cad6237 5605 dSP;
533c011a 5606 I32 which = PL_op->op_type;
a0d0e21e
LW		 5607 register char **elem;
5608 register SV *sv;
5609 struct group *grent;
5610
edd309b7
JH		 5611 if (which == OP_GGRNAM) {
5612 char* name = POPpbytex;
5613 grent = (struct group *)getgrnam(name);
5614 }
5615 else if (which == OP_GGRGID) {
5616 Gid_t gid = POPi;
5617 grent = (struct group *)getgrgid(gid);
5618 }
a0d0e21e 5619 else
0994c4d0 5620#ifdef HAS_GETGRENT
a0d0e21e 5621 grent = (struct group *)getgrent();
0994c4d0
JH		 5622#else
5623 DIE(aTHX_ PL_no_func, "getgrent");
5624#endif
a0d0e21e
LW		 5625
5626 EXTEND(SP, 4);
5627 if (GIMME != G_ARRAY) {
5628 PUSHs(sv = sv_newmortal());
5629 if (grent) {
5630 if (which == OP_GGRNAM)
1e422769 5631 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5632 else
5633 sv_setpv(sv, grent->gr_name);
5634 }
5635 RETURN;
5636 }
5637
5638 if (grent) {
3280af22 5639 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5640 sv_setpv(sv, grent->gr_name);
28e8609d 5641
3280af22 5642 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5643#ifdef GRPASSWD
a0d0e21e 5644 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5645#endif
5646
3280af22 5647 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5648 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5649
5b56e7c5 5650#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5651 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5652 /* In UNICOS/mk (_CRAYMPP) the multithreading
5653 * versions (getgrnam_r, getgrgid_r)
5654 * seem to return an illegal pointer
5655 * as the group members list, gr_mem.
5656 * getgrent() doesn't even have a _r version
5657 * but the gr_mem is poisonous anyway.
5658 * So yes, you cannot get the list of group
5659 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5660 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5661 sv_catpv(sv, *elem);
5662 if (elem[1])
5663 sv_catpvn(sv, " ", 1);
5664 }
3d7e8424 5665#endif
a0d0e21e
LW		 5666 }
5667
5668 RETURN;
5669#else
cea2e8a9 5670 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5671#endif
5672}
5673
5674PP(pp_sgrent)
5675{
28e8609d 5676#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5677 dSP;
a0d0e21e
LW		 5678 setgrent();
5679 RETPUSHYES;
5680#else
cea2e8a9 5681 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5682#endif
5683}
5684
5685PP(pp_egrent)
5686{
28e8609d 5687#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5688 dSP;
a0d0e21e
LW		 5689 endgrent();
5690 RETPUSHYES;
5691#else
cea2e8a9 5692 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5693#endif
5694}
5695
5696PP(pp_getlogin)
5697{
a0d0e21e 5698#ifdef HAS_GETLOGIN
9cad6237 5699 dSP; dTARGET;
a0d0e21e
LW		 5700 char *tmps;
5701 EXTEND(SP, 1);
76e3520e 5702 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5703 RETPUSHUNDEF;
5704 PUSHp(tmps, strlen(tmps));
5705 RETURN;
5706#else
cea2e8a9 5707 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5708#endif
5709}
5710
5711/* Miscellaneous. */
5712
5713PP(pp_syscall)
5714{
d2719217 5715#ifdef HAS_SYSCALL
39644a26 5716 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5717 register I32 items = SP - MARK;
5718 unsigned long a[20];
5719 register I32 i = 0;
5720 I32 retval = -1;
5721
3280af22 5722 if (PL_tainting) {
a0d0e21e 5723 while (++MARK <= SP) {
bbce6d69 5724 if (SvTAINTED(*MARK)) {
5725 TAINT;
5726 break;
5727 }
a0d0e21e
LW		 5728 }
5729 MARK = ORIGMARK;
5730 TAINT_PROPER("syscall");
5731 }
5732
5733 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5734 * or where sizeof(long) != sizeof(char*). But such machines will
5735 * not likely have syscall implemented either, so who cares?
5736 */
5737 while (++MARK <= SP) {
5738 if (SvNIOK(*MARK) || !i)
5739 a[i++] = SvIV(*MARK);
3280af22 5740 else if (*MARK == &PL_sv_undef)
748a9306 5741 a[i++] = 0;
301e8125 5742 else
8b6b16e7 5743 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5744 if (i > 15)
5745 break;
5746 }
5747 switch (items) {
5748 default:
cea2e8a9 5749 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5750 case 0:
cea2e8a9 5751 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5752 case 1:
5753 retval = syscall(a[0]);
5754 break;
5755 case 2:
5756 retval = syscall(a[0],a[1]);
5757 break;
5758 case 3:
5759 retval = syscall(a[0],a[1],a[2]);
5760 break;
5761 case 4:
5762 retval = syscall(a[0],a[1],a[2],a[3]);
5763 break;
5764 case 5:
5765 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5766 break;
5767 case 6:
5768 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5769 break;
5770 case 7:
5771 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5772 break;
5773 case 8:
5774 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5775 break;
5776#ifdef atarist
5777 case 9:
5778 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5779 break;
5780 case 10:
5781 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5782 break;
5783 case 11:
5784 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5785 a[10]);
5786 break;
5787 case 12:
5788 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5789 a[10],a[11]);
5790 break;
5791 case 13:
5792 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5793 a[10],a[11],a[12]);
5794 break;
5795 case 14:
5796 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5797 a[10],a[11],a[12],a[13]);
5798 break;
5799#endif /* atarist */
5800 }
5801 SP = ORIGMARK;
5802 PUSHi(retval);
5803 RETURN;
5804#else
cea2e8a9 5805 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5806#endif
5807}
5808
ff68c719 5809#ifdef FCNTL_EMULATE_FLOCK
301e8125 5810
ff68c719 5811/* XXX Emulate flock() with fcntl().
5812 What's really needed is a good file locking module.
5813*/
5814
cea2e8a9
GS		 5815static int
5816fcntl_emulate_flock(int fd, int operation)
ff68c719 5817{
5818 struct flock flock;
301e8125 5819
ff68c719 5820 switch (operation & ~LOCK_NB) {
5821 case LOCK_SH:
5822 flock.l_type = F_RDLCK;
5823 break;
5824 case LOCK_EX:
5825 flock.l_type = F_WRLCK;
5826 break;
5827 case LOCK_UN:
5828 flock.l_type = F_UNLCK;
5829 break;
5830 default:
5831 errno = EINVAL;
5832 return -1;
5833 }
5834 flock.l_whence = SEEK_SET;
d9b3e12d 5835 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5836
ff68c719 5837 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5838}
5839
5840#endif /* FCNTL_EMULATE_FLOCK */
5841
5842#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5843
5844/* XXX Emulate flock() with lockf(). This is just to increase
5845 portability of scripts. The calls are not completely
5846 interchangeable. What's really needed is a good file
5847 locking module.
5848*/
5849
76c32331 5850/* The lockf() constants might have been defined in <unistd.h>.
5851 Unfortunately, <unistd.h> causes troubles on some mixed
5852 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5853
5854 Further, the lockf() constants aren't POSIX, so they might not be
5855 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5856 just stick in the SVID values and be done with it. Sigh.
5857*/
5858
5859# ifndef F_ULOCK
5860# define F_ULOCK 0 /* Unlock a previously locked region */
5861# endif
5862# ifndef F_LOCK
5863# define F_LOCK 1 /* Lock a region for exclusive use */
5864# endif
5865# ifndef F_TLOCK
5866# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5867# endif
5868# ifndef F_TEST
5869# define F_TEST 3 /* Test a region for other processes locks */
5870# endif
5871
cea2e8a9
GS		 5872static int
5873lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5874{
5875 int i;
84902520
TB		 5876 int save_errno;
5877 Off_t pos;
5878
5879 /* flock locks entire file so for lockf we need to do the same */
5880 save_errno = errno;
6ad3d225 5881 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5882 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5883 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5884 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5885 errno = save_errno;
5886
16d20bd9
AD		 5887 switch (operation) {
5888
5889 /* LOCK_SH - get a shared lock */
5890 case LOCK_SH:
5891 /* LOCK_EX - get an exclusive lock */
5892 case LOCK_EX:
5893 i = lockf (fd, F_LOCK, 0);
5894 break;
5895
5896 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5897 case LOCK_SH|LOCK_NB:
5898 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5899 case LOCK_EX|LOCK_NB:
5900 i = lockf (fd, F_TLOCK, 0);
5901 if (i == -1)
5902 if ((errno == EAGAIN) || (errno == EACCES))
5903 errno = EWOULDBLOCK;
5904 break;
5905
ff68c719 5906 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5907 case LOCK_UN:
ff68c719 5908 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5909 i = lockf (fd, F_ULOCK, 0);
5910 break;
5911
5912 /* Default - can't decipher operation */
5913 default:
5914 i = -1;
5915 errno = EINVAL;
5916 break;
5917 }
84902520
TB		 5918
5919 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5920 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5921
16d20bd9
AD		 5922 return (i);
5923}
ff68c719 5924
5925#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5926
5927/*
5928 * Local variables:
5929 * c-indentation-style: bsd
5930 * c-basic-offset: 4
5931 * indent-tabs-mode: t
5932 * End:
5933 *
37442d52
RGS		 5934 * ex: set ts=8 sts=4 sw=4 noet:
5935 */
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