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Merge ftzero ftsock ftchr ftblk ftfile ftdir ftpipe into
[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{
c4420975
AL		 253 const Uid_t ruid = getuid();
254 const Uid_t euid = geteuid();
255 const Gid_t rgid = getgid();
256 const Gid_t egid = getegid();
5ff3f7a4
GS		 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 539 SV *sv;
5b468f54 540 IO *io;
5c144d81 541 const char *tmps;
a0d0e21e 542 STRLEN len;
a567e93b 543 bool ok;
a0d0e21e 544
c4420975
AL		 545 GV * const gv = (GV *)*++MARK;
546
5f05dabc 547 if (!isGV(gv))
cea2e8a9 548 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 549 if ((io = GvIOp(gv)))
36477c24 550 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 551
c4420975
AL		 552 if (io) {
553 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
554 if (mg) {
555 /* Method's args are same as ours ... */
556 /* ... except handle is replaced by the object */
557 *MARK-- = SvTIED_obj((SV*)io, mg);
558 PUSHMARK(MARK);
559 PUTBACK;
560 ENTER;
561 call_method("OPEN", G_SCALAR);
562 LEAVE;
563 SPAGAIN;
564 RETURN;
565 }
4592e6ca
NIS		 566 }
567
a567e93b
NIS		 568 if (MARK < SP) {
569 sv = *++MARK;
570 }
571 else {
35a08ec7 572 sv = GvSVn(gv);
a567e93b
NIS		 573 }
574
5c144d81 575 tmps = SvPV_const(sv, len);
2fbb330f 576 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 577 SP = ORIGMARK;
578 if (ok)
3280af22
NIS		 579 PUSHi( (I32)PL_forkprocess );
580 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 581 PUSHi(0);
582 else
583 RETPUSHUNDEF;
584 RETURN;
585}
586
587PP(pp_close)
588{
27da23d5 589 dVAR; dSP;
5b468f54 590 IO *io;
1d603a67 591 MAGIC *mg;
c4420975 592 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
1d603a67 593
5b468f54
AMS		 594 if (gv && (io = GvIO(gv))
595 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
596 {
1d603a67 597 PUSHMARK(SP);
5b468f54 598 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 599 PUTBACK;
600 ENTER;
864dbfa3 601 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 602 LEAVE;
603 SPAGAIN;
604 RETURN;
605 }
a0d0e21e 606 EXTEND(SP, 1);
54310121 607 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 608 RETURN;
609}
610
611PP(pp_pipe_op)
612{
a0d0e21e 613#ifdef HAS_PIPE
9cad6237 614 dSP;
a0d0e21e
LW		 615 register IO *rstio;
616 register IO *wstio;
617 int fd[2];
618
c4420975
AL		 619 GV * const wgv = (GV*)POPs;
620 GV * const rgv = (GV*)POPs;
a0d0e21e
LW		 621
622 if (!rgv || !wgv)
623 goto badexit;
624
4633a7c4 625 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 626 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 627 rstio = GvIOn(rgv);
628 wstio = GvIOn(wgv);
629
630 if (IoIFP(rstio))
631 do_close(rgv, FALSE);
632 if (IoIFP(wstio))
633 do_close(wgv, FALSE);
634
6ad3d225 635 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 636 goto badexit;
637
460c8493
IZ		 638 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
639 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 640 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 641 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 642 IoTYPE(rstio) = IoTYPE_RDONLY;
643 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 644
645 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 646 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 647 else PerlLIO_close(fd[0]);
760ac839 648 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 649 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 650 goto badexit;
651 }
4771b018
GS		 652#if defined(HAS_FCNTL) && defined(F_SETFD)
653 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
654 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
655#endif
a0d0e21e
LW		 656 RETPUSHYES;
657
658badexit:
659 RETPUSHUNDEF;
660#else
cea2e8a9 661 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 662#endif
663}
664
665PP(pp_fileno)
666{
27da23d5 667 dVAR; dSP; dTARGET;
a0d0e21e
LW		 668 GV *gv;
669 IO *io;
760ac839 670 PerlIO *fp;
4592e6ca
NIS		 671 MAGIC *mg;
672
a0d0e21e
LW		 673 if (MAXARG < 1)
674 RETPUSHUNDEF;
675 gv = (GV*)POPs;
4592e6ca 676
5b468f54
AMS		 677 if (gv && (io = GvIO(gv))
678 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
679 {
4592e6ca 680 PUSHMARK(SP);
5b468f54 681 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 682 PUTBACK;
683 ENTER;
864dbfa3 684 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 685 LEAVE;
686 SPAGAIN;
687 RETURN;
688 }
689
c289d2f7
JH		 690 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
691 /* Can't do this because people seem to do things like
692 defined(fileno($foo)) to check whether $foo is a valid fh.
693 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
694 report_evil_fh(gv, io, PL_op->op_type);
695 */
a0d0e21e 696 RETPUSHUNDEF;
c289d2f7
JH		 697 }
698
760ac839 699 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 700 RETURN;
701}
702
703PP(pp_umask)
704{
27da23d5 705 dSP;
d7e492a4 706#ifdef HAS_UMASK
27da23d5 707 dTARGET;
761237fe 708 Mode_t anum;
a0d0e21e 709
a0d0e21e 710 if (MAXARG < 1) {
6ad3d225
GS		 711 anum = PerlLIO_umask(0);
712 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 713 }
714 else
6ad3d225 715 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 716 TAINT_PROPER("umask");
717 XPUSHi(anum);
718#else
a0288114 719 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 720 * Otherwise it's harmless and more useful to just return undef
721 * since 'group' and 'other' concepts probably don't exist here. */
722 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 723 DIE(aTHX_ "umask not implemented");
6b88bc9c 724 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 725#endif
726 RETURN;
727}
728
729PP(pp_binmode)
730{
27da23d5 731 dVAR; dSP;
a0d0e21e
LW		 732 GV *gv;
733 IO *io;
760ac839 734 PerlIO *fp;
4592e6ca 735 MAGIC *mg;
16fe6d59 736 SV *discp = Nullsv;
a0d0e21e
LW		 737
738 if (MAXARG < 1)
739 RETPUSHUNDEF;
60382766 740 if (MAXARG > 1) {
16fe6d59 741 discp = POPs;
60382766 742 }
a0d0e21e 743
301e8125 744 gv = (GV*)POPs;
4592e6ca 745
5b468f54
AMS		 746 if (gv && (io = GvIO(gv))
747 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
748 {
4592e6ca 749 PUSHMARK(SP);
5b468f54 750 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 751 if (discp)
752 XPUSHs(discp);
4592e6ca
NIS		 753 PUTBACK;
754 ENTER;
864dbfa3 755 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 756 LEAVE;
757 SPAGAIN;
758 RETURN;
759 }
a0d0e21e
LW		 760
761 EXTEND(SP, 1);
50f846a7 762 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 763 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
764 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 765 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 766 RETPUSHUNDEF;
767 }
a0d0e21e 768
40d98b49 769 PUTBACK;
60382766 770 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 771 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 772 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
773 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
774 mode_from_discipline(discp),
e62f0680 775 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 776 SPAGAIN;
777 RETPUSHUNDEF;
778 }
779 }
40d98b49 780 SPAGAIN;
a0d0e21e 781 RETPUSHYES;
40d98b49
JH		 782 }
783 else {
784 SPAGAIN;
a0d0e21e 785 RETPUSHUNDEF;
40d98b49 786 }
a0d0e21e
LW		 787}
788
789PP(pp_tie)
790{
27da23d5 791 dVAR; dSP; dMARK;
a0d0e21e
LW		 792 HV* stash;
793 GV *gv;
a0d0e21e 794 SV *sv;
1df70142 795 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 796 const char *methname;
14befaf4 797 int how = PERL_MAGIC_tied;
e336de0d 798 U32 items;
c4420975 799 SV *varsv = *++MARK;
a0d0e21e 800
6b05c17a
NIS		 801 switch(SvTYPE(varsv)) {
802 case SVt_PVHV:
803 methname = "TIEHASH";
bfcb3514 804 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 805 break;
806 case SVt_PVAV:
807 methname = "TIEARRAY";
808 break;
809 case SVt_PVGV:
7fb37951
AMS		 810#ifdef GV_UNIQUE_CHECK
811 if (GvUNIQUE((GV*)varsv)) {
812 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 813 }
814#endif
6b05c17a 815 methname = "TIEHANDLE";
14befaf4 816 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 817 /* For tied filehandles, we apply tiedscalar magic to the IO
818 slot of the GP rather than the GV itself. AMS 20010812 */
819 if (!GvIOp(varsv))
820 GvIOp(varsv) = newIO();
821 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 822 break;
823 default:
824 methname = "TIESCALAR";
14befaf4 825 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 826 break;
827 }
e336de0d
GS		 828 items = SP - MARK++;
829 if (sv_isobject(*MARK)) {
6b05c17a 830 ENTER;
e788e7d3 831 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 832 PUSHMARK(SP);
eb160463 833 EXTEND(SP,(I32)items);
e336de0d
GS		 834 while (items--)
835 PUSHs(*MARK++);
836 PUTBACK;
864dbfa3 837 call_method(methname, G_SCALAR);
301e8125 838 }
6b05c17a 839 else {
864dbfa3 840 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 841 * perhaps to get different error message ?
842 */
e336de0d 843 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 844 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 845 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
846 methname, *MARK);
6b05c17a
NIS		 847 }
848 ENTER;
e788e7d3 849 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 850 PUSHMARK(SP);
eb160463 851 EXTEND(SP,(I32)items);
e336de0d
GS		 852 while (items--)
853 PUSHs(*MARK++);
854 PUTBACK;
864dbfa3 855 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 856 }
a0d0e21e
LW		 857 SPAGAIN;
858
859 sv = TOPs;
d3acc0f7 860 POPSTACK;
a0d0e21e 861 if (sv_isobject(sv)) {
33c27489 862 sv_unmagic(varsv, how);
ae21d580 863 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 864 if (varsv == SvRV(sv) &&
d87ebaca
YST		 865 (SvTYPE(varsv) == SVt_PVAV ||
866 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 867 Perl_croak(aTHX_
868 "Self-ties of arrays and hashes are not supported");
d87ebaca 869 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 870 }
871 LEAVE;
3280af22 872 SP = PL_stack_base + markoff;
a0d0e21e
LW		 873 PUSHs(sv);
874 RETURN;
875}
876
877PP(pp_untie)
878{
27da23d5 879 dVAR; dSP;
5b468f54 880 MAGIC *mg;
33c27489 881 SV *sv = POPs;
1df70142 882 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 883 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 884
5b468f54
AMS		 885 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
886 RETPUSHYES;
887
65eba18f 888 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 889 SV * const obj = SvRV(SvTIED_obj(sv, mg));
a29a5827 890 CV *cv = NULL;
fa2b88e0 891 if (obj) {
c4420975
AL		 892 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
893 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0
JS		 894 PUSHMARK(SP);
895 XPUSHs(SvTIED_obj((SV*)gv, mg));
896 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
897 PUTBACK;
898 ENTER;
899 call_sv((SV *)cv, G_VOID);
900 LEAVE;
901 SPAGAIN;
902 }
041457d9 903 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
9014280d 904 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 905 "untie attempted while %"UVuf" inner references still exist",
906 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 907 }
cbdc8872 908 }
909 }
38193a09 910 sv_unmagic(sv, how) ;
55497cff 911 RETPUSHYES;
a0d0e21e
LW		 912}
913
c07a80fd 914PP(pp_tied)
915{
39644a26 916 dSP;
1b6737cc 917 const MAGIC *mg;
33c27489 918 SV *sv = POPs;
1df70142 919 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 920 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 921
922 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
923 RETPUSHUNDEF;
c07a80fd 924
155aba94 925 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 926 SV *osv = SvTIED_obj(sv, mg);
927 if (osv == mg->mg_obj)
928 osv = sv_mortalcopy(osv);
929 PUSHs(osv);
930 RETURN;
c07a80fd 931 }
c07a80fd 932 RETPUSHUNDEF;
933}
934
a0d0e21e
LW		 935PP(pp_dbmopen)
936{
27da23d5 937 dVAR; dSP;
a0d0e21e
LW		 938 dPOPPOPssrl;
939 HV* stash;
940 GV *gv;
a0d0e21e 941
1b6737cc 942 HV * const hv = (HV*)POPs;
c4420975 943 SV * const sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e 944
a0d0e21e
LW		 945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
8ebc5c01 947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 948 PUTBACK;
864dbfa3 949 require_pv("AnyDBM_File.pm");
a0d0e21e 950 SPAGAIN;
8ebc5c01 951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 952 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 953 }
954
57d3b86d 955 ENTER;
924508f0 956 PUSHMARK(SP);
6b05c17a 957
924508f0 958 EXTEND(SP, 5);
a0d0e21e
LW		 959 PUSHs(sv);
960 PUSHs(left);
961 if (SvIV(right))
b448e4fe 962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 963 else
b448e4fe 964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 965 PUSHs(right);
57d3b86d 966 PUTBACK;
864dbfa3 967 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 968 SPAGAIN;
969
970 if (!sv_isobject(TOPs)) {
924508f0
GS		 971 SP--;
972 PUSHMARK(SP);
a0d0e21e
LW		 973 PUSHs(sv);
974 PUSHs(left);
b448e4fe 975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 976 PUSHs(right);
a0d0e21e 977 PUTBACK;
864dbfa3 978 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 979 SPAGAIN;
980 }
981
6b05c17a 982 if (sv_isobject(TOPs)) {
14befaf4
DM		 983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 985 }
a0d0e21e
LW		 986 LEAVE;
987 RETURN;
988}
989
a0d0e21e
LW		 990PP(pp_sselect)
991{
a0d0e21e 992#ifdef HAS_SELECT
9cad6237 993 dSP; dTARGET;
a0d0e21e
LW		 994 register I32 i;
995 register I32 j;
996 register char *s;
997 register SV *sv;
65202027 998 NV value;
a0d0e21e
LW		 999 I32 maxlen = 0;
1000 I32 nfound;
1001 struct timeval timebuf;
1002 struct timeval *tbuf = &timebuf;
1003 I32 growsize;
1004 char *fd_sets[4];
1005#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1006 I32 masksize;
1007 I32 offset;
1008 I32 k;
1009
1010# if BYTEORDER & 0xf0000
1011# define ORDERBYTE (0x88888888 - BYTEORDER)
1012# else
1013# define ORDERBYTE (0x4444 - BYTEORDER)
1014# endif
1015
1016#endif
1017
1018 SP -= 4;
1019 for (i = 1; i <= 3; i++) {
c4420975 1020 SV * const sv = SP[i];
15547071
GA		 1021 if (!SvOK(sv))
1022 continue;
1023 if (SvREADONLY(sv)) {
729c079f
NC		 1024 if (SvIsCOW(sv))
1025 sv_force_normal_flags(sv, 0);
15547071 1026 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
729c079f
NC		 1027 DIE(aTHX_ PL_no_modify);
1028 }
4ef2275c
GA		 1029 if (!SvPOK(sv)) {
1030 if (ckWARN(WARN_MISC))
1031 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1032 SvPV_force_nolen(sv); /* force string conversion */
1033 }
729c079f 1034 j = SvCUR(sv);
a0d0e21e
LW		 1035 if (maxlen < j)
1036 maxlen = j;
1037 }
1038
5ff3f7a4 1039/* little endians can use vecs directly */
e366b469 1040#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1041# ifdef NFDBITS
a0d0e21e 1042
5ff3f7a4
GS		 1043# ifndef NBBY
1044# define NBBY 8
1045# endif
a0d0e21e
LW		 1046
1047 masksize = NFDBITS / NBBY;
5ff3f7a4 1048# else
a0d0e21e 1049 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1050# endif
a0d0e21e
LW		 1051 Zero(&fd_sets[0], 4, char*);
1052#endif
1053
ad517f75
MHM		 1054# if SELECT_MIN_BITS == 1
1055 growsize = sizeof(fd_set);
1056# else
1057# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1058# undef SELECT_MIN_BITS
1059# define SELECT_MIN_BITS __FD_SETSIZE
1060# endif
e366b469
PG		 1061 /* If SELECT_MIN_BITS is greater than one we most probably will want
1062 * to align the sizes with SELECT_MIN_BITS/8 because for example
1063 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1064 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1065 * on (sets/tests/clears bits) is 32 bits. */
1066 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1067# endif
1068
a0d0e21e
LW		 1069 sv = SP[4];
1070 if (SvOK(sv)) {
1071 value = SvNV(sv);
1072 if (value < 0.0)
1073 value = 0.0;
1074 timebuf.tv_sec = (long)value;
65202027 1075 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1076 timebuf.tv_usec = (long)(value * 1000000.0);
1077 }
1078 else
1079 tbuf = Null(struct timeval*);
1080
1081 for (i = 1; i <= 3; i++) {
1082 sv = SP[i];
15547071 1083 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW		 1084 fd_sets[i] = 0;
1085 continue;
1086 }
4ef2275c 1087 assert(SvPOK(sv));
a0d0e21e
LW		 1088 j = SvLEN(sv);
1089 if (j < growsize) {
1090 Sv_Grow(sv, growsize);
a0d0e21e 1091 }
c07a80fd 1092 j = SvCUR(sv);
1093 s = SvPVX(sv) + j;
1094 while (++j <= growsize) {
1095 *s++ = '\0';
1096 }
1097
a0d0e21e
LW		 1098#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1099 s = SvPVX(sv);
a02a5408 1100 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1101 for (offset = 0; offset < growsize; offset += masksize) {
1102 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1103 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1104 }
1105#else
1106 fd_sets[i] = SvPVX(sv);
1107#endif
1108 }
1109
dc4c69d9
JH		 1110#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1111 /* Can't make just the (void*) conditional because that would be
1112 * cpp #if within cpp macro, and not all compilers like that. */
1113 nfound = PerlSock_select(
1114 maxlen * 8,
1115 (Select_fd_set_t) fd_sets[1],
1116 (Select_fd_set_t) fd_sets[2],
1117 (Select_fd_set_t) fd_sets[3],
1118 (void*) tbuf); /* Workaround for compiler bug. */
1119#else
6ad3d225 1120 nfound = PerlSock_select(
a0d0e21e
LW		 1121 maxlen * 8,
1122 (Select_fd_set_t) fd_sets[1],
1123 (Select_fd_set_t) fd_sets[2],
1124 (Select_fd_set_t) fd_sets[3],
1125 tbuf);
dc4c69d9 1126#endif
a0d0e21e
LW		 1127 for (i = 1; i <= 3; i++) {
1128 if (fd_sets[i]) {
1129 sv = SP[i];
1130#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1131 s = SvPVX(sv);
1132 for (offset = 0; offset < growsize; offset += masksize) {
1133 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1134 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1135 }
1136 Safefree(fd_sets[i]);
1137#endif
1138 SvSETMAGIC(sv);
1139 }
1140 }
1141
4189264e 1142 PUSHi(nfound);
a0d0e21e 1143 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1144 value = (NV)(timebuf.tv_sec) +
1145 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1146 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1147 sv_setnv(sv, value);
1148 }
1149 RETURN;
1150#else
cea2e8a9 1151 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1152#endif
1153}
1154
4633a7c4 1155void
864dbfa3 1156Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1157{
1158 if (gv)
1159 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1160 if (PL_defoutgv)
1161 SvREFCNT_dec(PL_defoutgv);
1162 PL_defoutgv = gv;
4633a7c4
LW		 1163}
1164
a0d0e21e
LW		 1165PP(pp_select)
1166{
39644a26 1167 dSP; dTARGET;
1df70142 1168 GV *egv;
4633a7c4
LW		 1169 HV *hv;
1170
1df70142 1171 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1172
3280af22 1173 egv = GvEGV(PL_defoutgv);
4633a7c4 1174 if (!egv)
3280af22 1175 egv = PL_defoutgv;
4633a7c4
LW		 1176 hv = GvSTASH(egv);
1177 if (! hv)
3280af22 1178 XPUSHs(&PL_sv_undef);
4633a7c4 1179 else {
c4420975 1180 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1181 if (gvp && *gvp == egv) {
f7aaccc2 1182 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1183 XPUSHTARG;
1184 }
1185 else {
1186 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1187 }
4633a7c4
LW		 1188 }
1189
1190 if (newdefout) {
ded8aa31
GS		 1191 if (!GvIO(newdefout))
1192 gv_IOadd(newdefout);
4633a7c4
LW		 1193 setdefout(newdefout);
1194 }
1195
a0d0e21e
LW		 1196 RETURN;
1197}
1198
1199PP(pp_getc)
1200{
27da23d5 1201 dVAR; dSP; dTARGET;
90133b69 1202 IO *io = NULL;
2ae324a7 1203 MAGIC *mg;
1b6737cc 1204 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1205
5b468f54
AMS		 1206 if (gv && (io = GvIO(gv))
1207 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1208 {
f54cb97a 1209 const I32 gimme = GIMME_V;
2ae324a7 1210 PUSHMARK(SP);
5b468f54 1211 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1212 PUTBACK;
1213 ENTER;
864dbfa3 1214 call_method("GETC", gimme);
2ae324a7 1215 LEAVE;
1216 SPAGAIN;
54310121 1217 if (gimme == G_SCALAR)
1218 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1219 RETURN;
1220 }
90133b69 1221 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM		 1222 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1223 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1224 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1225 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1226 RETPUSHUNDEF;
90133b69 1227 }
bbce6d69 1228 TAINT;
c69006e4 1229 sv_setpvn(TARG, " ", 1);
9bc64814 1230 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1231 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1232 /* Find out how many bytes the char needs */
aa07b2f6 1233 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1234 if (len > 1) {
1235 SvGROW(TARG,len+1);
1236 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1237 SvCUR_set(TARG,1+len);
1238 }
1239 SvUTF8_on(TARG);
1240 }
a0d0e21e
LW		 1241 PUSHTARG;
1242 RETURN;
1243}
1244
76e3520e 1245STATIC OP *
cea2e8a9 1246S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1247{
27da23d5 1248 dVAR;
c09156bb 1249 register PERL_CONTEXT *cx;
f54cb97a 1250 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1251
1252 ENTER;
1253 SAVETMPS;
1254
146174a9 1255 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1256 PUSHFORMAT(cx);
f39bc417 1257 cx->blk_sub.retop = retop;
fd617465
DM		 1258 SAVECOMPPAD();
1259 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1260
4633a7c4 1261 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1262 return CvSTART(cv);
1263}
1264
1265PP(pp_enterwrite)
1266{
39644a26 1267 dSP;
a0d0e21e
LW		 1268 register GV *gv;
1269 register IO *io;
1270 GV *fgv;
1271 CV *cv;
1272
1273 if (MAXARG == 0)
3280af22 1274 gv = PL_defoutgv;
a0d0e21e
LW		 1275 else {
1276 gv = (GV*)POPs;
1277 if (!gv)
3280af22 1278 gv = PL_defoutgv;
a0d0e21e
LW		 1279 }
1280 EXTEND(SP, 1);
1281 io = GvIO(gv);
1282 if (!io) {
1283 RETPUSHNO;
1284 }
1285 if (IoFMT_GV(io))
1286 fgv = IoFMT_GV(io);
1287 else
1288 fgv = gv;
1289
1290 cv = GvFORM(fgv);
a0d0e21e
LW		 1291 if (!cv) {
1292 if (fgv) {
1df70142 1293 SV * const tmpsv = sv_newmortal();
e62f0680 1294 const char *name;
43693395 1295 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1296 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1297 if (name && *name)
1298 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1299 }
cea2e8a9 1300 DIE(aTHX_ "Not a format reference");
a0d0e21e 1301 }
44a8e56a 1302 if (CvCLONE(cv))
1303 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1304
44a8e56a 1305 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1306 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1307}
1308
1309PP(pp_leavewrite)
1310{
27da23d5 1311 dVAR; dSP;
1b6737cc
AL		 1312 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1313 register IO * const io = GvIOp(gv);
1314 PerlIO * const ofp = IoOFP(io);
760ac839 1315 PerlIO *fp;
8772537c
AL		 1316 SV **newsp;
1317 I32 gimme;
c09156bb 1318 register PERL_CONTEXT *cx;
a0d0e21e 1319
760ac839 1320 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1321 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1322 if (!io || !ofp)
1323 goto forget_top;
3280af22
NIS		 1324 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1325 PL_formtarget != PL_toptarget)
a0d0e21e 1326 {
4633a7c4
LW		 1327 GV *fgv;
1328 CV *cv;
a0d0e21e
LW		 1329 if (!IoTOP_GV(io)) {
1330 GV *topgv;
a0d0e21e
LW		 1331
1332 if (!IoTOP_NAME(io)) {
1b6737cc 1333 SV *topname;
a0d0e21e
LW		 1334 if (!IoFMT_NAME(io))
1335 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1336 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1337 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1338 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1339 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1340 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1341 else
ff5bdd37 1342 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1343 }
1344 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1345 if (!topgv || !GvFORM(topgv)) {
b929a54b 1346 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1347 goto forget_top;
1348 }
1349 IoTOP_GV(io) = topgv;
1350 }
748a9306
LW		 1351 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1352 I32 lines = IoLINES_LEFT(io);
504618e9 1353 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1354 if (lines <= 0) /* Yow, header didn't even fit!!! */
1355 goto forget_top;
748a9306
LW		 1356 while (lines-- > 0) {
1357 s = strchr(s, '\n');
1358 if (!s)
1359 break;
1360 s++;
1361 }
1362 if (s) {
f54cb97a 1363 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1364 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1365 do_print(PL_formtarget, ofp);
1366 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1367 sv_chop(PL_formtarget, s);
1368 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1369 }
1370 }
a0d0e21e 1371 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1372 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1373 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1374 IoPAGE(io)++;
3280af22 1375 PL_formtarget = PL_toptarget;
748a9306 1376 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1377 fgv = IoTOP_GV(io);
1378 if (!fgv)
cea2e8a9 1379 DIE(aTHX_ "bad top format reference");
4633a7c4 1380 cv = GvFORM(fgv);
1df70142
AL		 1381 if (!cv) {
1382 SV * const sv = sv_newmortal();
b464bac0 1383 const char *name;
1df70142 1384 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1385 name = SvPV_nolen_const(sv);
2dd78f96 1386 if (name && *name)
1df70142 1387 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1388 }
1df70142
AL		 1389 /* why no:
1390 else
1391 DIE(aTHX_ "Undefined top format called");
1392 ?*/
44a8e56a 1393 if (CvCLONE(cv))
1394 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1395 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1396 }
1397
1398 forget_top:
3280af22 1399 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1400 POPFORMAT(cx);
1401 LEAVE;
1402
1403 fp = IoOFP(io);
1404 if (!fp) {
599cee73 1405 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1406 if (IoIFP(io))
1407 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1408 else if (ckWARN(WARN_CLOSED))
bc37a18f 1409 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1410 }
3280af22 1411 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1412 }
1413 else {
3280af22 1414 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1415 if (ckWARN(WARN_IO))
9014280d 1416 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1417 }
d75029d0 1418 if (!do_print(PL_formtarget, fp))
3280af22 1419 PUSHs(&PL_sv_no);
a0d0e21e 1420 else {
3280af22
NIS		 1421 FmLINES(PL_formtarget) = 0;
1422 SvCUR_set(PL_formtarget, 0);
1423 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1424 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1425 (void)PerlIO_flush(fp);
3280af22 1426 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1427 }
1428 }
9cbac4c7 1429 /* bad_ofp: */
3280af22 1430 PL_formtarget = PL_bodytarget;
a0d0e21e 1431 PUTBACK;
29033a8a
SH		 1432 PERL_UNUSED_VAR(newsp);
1433 PERL_UNUSED_VAR(gimme);
f39bc417 1434 return cx->blk_sub.retop;
a0d0e21e
LW		 1435}
1436
1437PP(pp_prtf)
1438{
27da23d5 1439 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e 1440 IO *io;
760ac839 1441 PerlIO *fp;
26db47c4 1442 SV *sv;
46fc3d4c 1443 MAGIC *mg;
a0d0e21e 1444
c4420975 1445 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
46fc3d4c 1446
5b468f54
AMS		 1447 if (gv && (io = GvIO(gv))
1448 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1449 {
46fc3d4c 1450 if (MARK == ORIGMARK) {
4352c267 1451 MEXTEND(SP, 1);
46fc3d4c 1452 ++MARK;
1453 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1454 ++SP;
1455 }
1456 PUSHMARK(MARK - 1);
5b468f54 1457 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1458 PUTBACK;
1459 ENTER;
864dbfa3 1460 call_method("PRINTF", G_SCALAR);
46fc3d4c 1461 LEAVE;
1462 SPAGAIN;
1463 MARK = ORIGMARK + 1;
1464 *MARK = *SP;
1465 SP = MARK;
1466 RETURN;
1467 }
1468
26db47c4 1469 sv = NEWSV(0,0);
a0d0e21e 1470 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1471 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1472 report_evil_fh(gv, io, PL_op->op_type);
93189314 1473 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1474 goto just_say_no;
1475 }
1476 else if (!(fp = IoOFP(io))) {
599cee73 1477 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1478 if (IoIFP(io))
1479 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1480 else if (ckWARN(WARN_CLOSED))
bc37a18f 1481 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1482 }
93189314 1483 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1484 goto just_say_no;
1485 }
1486 else {
1487 do_sprintf(sv, SP - MARK, MARK + 1);
1488 if (!do_print(sv, fp))
1489 goto just_say_no;
1490
1491 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1492 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1493 goto just_say_no;
1494 }
1495 SvREFCNT_dec(sv);
1496 SP = ORIGMARK;
3280af22 1497 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1498 RETURN;
1499
1500 just_say_no:
1501 SvREFCNT_dec(sv);
1502 SP = ORIGMARK;
3280af22 1503 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1504 RETURN;
1505}
1506
c07a80fd 1507PP(pp_sysopen)
1508{
39644a26 1509 dSP;
1df70142
AL		 1510 const int perm = (MAXARG > 3) ? POPi : 0666;
1511 const int mode = POPi;
1b6737cc
AL		 1512 SV * const sv = POPs;
1513 GV * const gv = (GV *)POPs;
1514 STRLEN len;
c07a80fd 1515
4592e6ca 1516 /* Need TIEHANDLE method ? */
1b6737cc 1517 const char * const tmps = SvPV_const(sv, len);
e62f0680 1518 /* FIXME? do_open should do const */
2fbb330f 1519 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1520 IoLINES(GvIOp(gv)) = 0;
3280af22 1521 PUSHs(&PL_sv_yes);
c07a80fd 1522 }
1523 else {
3280af22 1524 PUSHs(&PL_sv_undef);
c07a80fd 1525 }
1526 RETURN;
1527}
1528
a0d0e21e
LW		 1529PP(pp_sysread)
1530{
27da23d5 1531 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1532 int offset;
a0d0e21e
LW		 1533 IO *io;
1534 char *buffer;
5b54f415 1535 SSize_t length;
eb5c063a 1536 SSize_t count;
1e422769 1537 Sock_size_t bufsize;
748a9306 1538 SV *bufsv;
a0d0e21e 1539 STRLEN blen;
eb5c063a 1540 int fp_utf8;
1dd30107
NC		 1541 int buffer_utf8;
1542 SV *read_target;
eb5c063a
NIS		 1543 Size_t got = 0;
1544 Size_t wanted;
1d636c13 1545 bool charstart = FALSE;
87330c3c
JH		 1546 STRLEN charskip = 0;
1547 STRLEN skip = 0;
a0d0e21e 1548
1b6737cc 1549 GV * const gv = (GV*)*++MARK;
5b468f54 1550 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1551 && gv && (io = GvIO(gv)) )
137443ea 1552 {
1b6737cc
AL		 1553 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1554 if (mg) {
1555 SV *sv;
1556 PUSHMARK(MARK-1);
1557 *MARK = SvTIED_obj((SV*)io, mg);
1558 ENTER;
1559 call_method("READ", G_SCALAR);
1560 LEAVE;
1561 SPAGAIN;
1562 sv = POPs;
1563 SP = ORIGMARK;
1564 PUSHs(sv);
1565 RETURN;
1566 }
2ae324a7 1567 }
1568
a0d0e21e
LW		 1569 if (!gv)
1570 goto say_undef;
748a9306 1571 bufsv = *++MARK;
ff68c719 1572 if (! SvOK(bufsv))
1573 sv_setpvn(bufsv, "", 0);
a0d0e21e 1574 length = SvIVx(*++MARK);
748a9306 1575 SETERRNO(0,0);
a0d0e21e
LW		 1576 if (MARK < SP)
1577 offset = SvIVx(*++MARK);
1578 else
1579 offset = 0;
1580 io = GvIO(gv);
b5fe5ca2
SR		 1581 if (!io || !IoIFP(io)) {
1582 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1583 report_evil_fh(gv, io, PL_op->op_type);
1584 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1585 goto say_undef;
b5fe5ca2 1586 }
0064a8a9 1587 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1588 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1589 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1590 SvUTF8_on(bufsv);
9b9d7ce8 1591 buffer_utf8 = 0;
7d59b7e4
NIS		 1592 }
1593 else {
1594 buffer = SvPV_force(bufsv, blen);
1dd30107 1595 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1596 }
1597 if (length < 0)
1598 DIE(aTHX_ "Negative length");
eb5c063a 1599 wanted = length;
7d59b7e4 1600
d0965105
JH		 1601 charstart = TRUE;
1602 charskip = 0;
87330c3c 1603 skip = 0;
d0965105 1604
a0d0e21e 1605#ifdef HAS_SOCKET
533c011a 1606 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1607 char namebuf[MAXPATHLEN];
17a8c7ba 1608#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1609 bufsize = sizeof (struct sockaddr_in);
1610#else
46fc3d4c 1611 bufsize = sizeof namebuf;
490ab354 1612#endif
abf95952
IZ		 1613#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1614 if (bufsize >= 256)
1615 bufsize = 255;
1616#endif
eb160463 1617 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1618 /* 'offset' means 'flags' here */
eb5c063a 1619 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1620 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1621 if (count < 0)
a0d0e21e 1622 RETPUSHUNDEF;
4107cc59
OF		 1623#ifdef EPOC
1624 /* Bogus return without padding */
1625 bufsize = sizeof (struct sockaddr_in);
1626#endif
eb5c063a 1627 SvCUR_set(bufsv, count);
748a9306
LW		 1628 *SvEND(bufsv) = '\0';
1629 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1630 if (fp_utf8)
1631 SvUTF8_on(bufsv);
748a9306 1632 SvSETMAGIC(bufsv);
aac0dd9a 1633 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1634 if (!(IoFLAGS(io) & IOf_UNTAINT))
1635 SvTAINTED_on(bufsv);
a0d0e21e 1636 SP = ORIGMARK;
46fc3d4c 1637 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1638 PUSHs(TARG);
1639 RETURN;
1640 }
1641#else
911d147d 1642 if (PL_op->op_type == OP_RECV)
cea2e8a9 1643 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1644#endif
eb5c063a
NIS		 1645 if (DO_UTF8(bufsv)) {
1646 /* offset adjust in characters not bytes */
1647 blen = sv_len_utf8(bufsv);
7d59b7e4 1648 }
bbce6d69 1649 if (offset < 0) {
eb160463 1650 if (-offset > (int)blen)
cea2e8a9 1651 DIE(aTHX_ "Offset outside string");
bbce6d69 1652 offset += blen;
1653 }
eb5c063a
NIS		 1654 if (DO_UTF8(bufsv)) {
1655 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1656 if (offset >= (int)blen)
1657 offset += SvCUR(bufsv) - blen;
1658 else
1659 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1660 }
1661 more_bytes:
cd52b7b2 1662 bufsize = SvCUR(bufsv);
1dd30107
NC		 1663 /* Allocating length + offset + 1 isn't perfect in the case of reading
1664 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1665 unduly.
1666 (should be 2 * length + offset + 1, or possibly something longer if
1667 PL_encoding is true) */
eb160463 1668 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1669 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1670 Zero(buffer+bufsize, offset-bufsize, char);
1671 }
eb5c063a 1672 buffer = buffer + offset;
1dd30107
NC		 1673 if (!buffer_utf8) {
1674 read_target = bufsv;
1675 } else {
1676 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1677 concatenate it to the current buffer. */
1678
1679 /* Truncate the existing buffer to the start of where we will be
1680 reading to: */
1681 SvCUR_set(bufsv, offset);
1682
1683 read_target = sv_newmortal();
862a34c6 1684 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1685 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1686 }
eb5c063a 1687
533c011a 1688 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1689#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1690 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1691 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1692 buffer, length, 0);
a7092146
GS		 1693 }
1694 else
1695#endif
1696 {
eb5c063a
NIS		 1697 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1698 buffer, length);
a7092146 1699 }
a0d0e21e
LW		 1700 }
1701 else
1702#ifdef HAS_SOCKET__bad_code_maybe
50952442 1703 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1704 char namebuf[MAXPATHLEN];
490ab354
JH		 1705#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1706 bufsize = sizeof (struct sockaddr_in);
1707#else
46fc3d4c 1708 bufsize = sizeof namebuf;
490ab354 1709#endif
eb5c063a 1710 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1711 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1712 }
1713 else
1714#endif
3b02c43c 1715 {
eb5c063a
NIS		 1716 count = PerlIO_read(IoIFP(io), buffer, length);
1717 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1718 if (count == 0 && PerlIO_error(IoIFP(io)))
1719 count = -1;
3b02c43c 1720 }
eb5c063a 1721 if (count < 0) {
a00b5bd3 1722 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1723 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1724 goto say_undef;
af8c498a 1725 }
aa07b2f6 1726 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1727 *SvEND(read_target) = '\0';
1728 (void)SvPOK_only(read_target);
0064a8a9 1729 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1730 /* Look at utf8 we got back and count the characters */
1df70142 1731 const char *bend = buffer + count;
eb5c063a 1732 while (buffer < bend) {
d0965105
JH		 1733 if (charstart) {
1734 skip = UTF8SKIP(buffer);
1735 charskip = 0;
1736 }
1737 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1738 /* partial character - try for rest of it */
1739 length = skip - (bend-buffer);
aa07b2f6 1740 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1741 charstart = FALSE;
1742 charskip += count;
eb5c063a
NIS		 1743 goto more_bytes;
1744 }
1745 else {
1746 got++;
1747 buffer += skip;
d0965105
JH		 1748 charstart = TRUE;
1749 charskip = 0;
eb5c063a
NIS		 1750 }
1751 }
1752 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1753 provided amount read (count) was what was requested (length)
1754 */
1755 if (got < wanted && count == length) {
d0965105 1756 length = wanted - got;
aa07b2f6 1757 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1758 goto more_bytes;
1759 }
1760 /* return value is character count */
1761 count = got;
1762 SvUTF8_on(bufsv);
1763 }
1dd30107
NC		 1764 else if (buffer_utf8) {
1765 /* Let svcatsv upgrade the bytes we read in to utf8.
1766 The buffer is a mortal so will be freed soon. */
1767 sv_catsv_nomg(bufsv, read_target);
1768 }
748a9306 1769 SvSETMAGIC(bufsv);
aac0dd9a 1770 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1771 if (!(IoFLAGS(io) & IOf_UNTAINT))
1772 SvTAINTED_on(bufsv);
a0d0e21e 1773 SP = ORIGMARK;
eb5c063a 1774 PUSHi(count);
a0d0e21e
LW		 1775 RETURN;
1776
1777 say_undef:
1778 SP = ORIGMARK;
1779 RETPUSHUNDEF;
1780}
1781
1782PP(pp_syswrite)
1783{
27da23d5 1784 dVAR; dSP;
1df70142 1785 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1786 if (items == 2) {
9f089d78 1787 SV *sv;
092bebab 1788 EXTEND(SP, 1);
9f089d78
SB		 1789 sv = sv_2mortal(newSViv(sv_len(*SP)));
1790 PUSHs(sv);
092bebab
JH		 1791 PUTBACK;
1792 }
cea2e8a9 1793 return pp_send();
a0d0e21e
LW		 1794}
1795
1796PP(pp_send)
1797{
27da23d5 1798 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1799 GV *gv;
1800 IO *io;
748a9306 1801 SV *bufsv;
83003860 1802 const char *buffer;
8c99d73e
GS		 1803 Size_t length;
1804 SSize_t retval;
a0d0e21e 1805 STRLEN blen;
1d603a67 1806 MAGIC *mg;
a0d0e21e
LW		 1807
1808 gv = (GV*)*++MARK;
14befaf4 1809 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1810 && gv && (io = GvIO(gv))
1811 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1812 {
1d603a67
GB		 1813 SV *sv;
1814
1815 PUSHMARK(MARK-1);
5b468f54 1816 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1817 ENTER;
864dbfa3 1818 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1819 LEAVE;
1820 SPAGAIN;
1821 sv = POPs;
1822 SP = ORIGMARK;
1823 PUSHs(sv);
1824 RETURN;
1825 }
a0d0e21e
LW		 1826 if (!gv)
1827 goto say_undef;
748a9306 1828 bufsv = *++MARK;
8c99d73e 1829#if Size_t_size > IVSIZE
3c001241 1830 length = (Size_t)SvNVx(*++MARK);
146174a9 1831#else
3c001241 1832 length = (Size_t)SvIVx(*++MARK);
146174a9 1833#endif
3c001241 1834 if ((SSize_t)length < 0)
cea2e8a9 1835 DIE(aTHX_ "Negative length");
748a9306 1836 SETERRNO(0,0);
a0d0e21e
LW		 1837 io = GvIO(gv);
1838 if (!io || !IoIFP(io)) {
8c99d73e 1839 retval = -1;
bc37a18f
RG		 1840 if (ckWARN(WARN_CLOSED))
1841 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1842 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1843 goto say_undef;
1844 }
1845
1846 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1847 if (!SvUTF8(bufsv)) {
1848 bufsv = sv_2mortal(newSVsv(bufsv));
1849 buffer = sv_2pvutf8(bufsv, &blen);
1850 } else
83003860 1851 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1852 }
7d59b7e4 1853 else {
4de5f5ca
JH		 1854 if (DO_UTF8(bufsv)) {
1855 /* Not modifying source SV, so making a temporary copy. */
1856 bufsv = sv_2mortal(newSVsv(bufsv));
1857 sv_utf8_downgrade(bufsv, FALSE);
1858 }
83003860 1859 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1860 }
1861
1862 if (PL_op->op_type == OP_SYSWRITE) {
1863 IV offset;
1864 if (DO_UTF8(bufsv)) {
1865 /* length and offset are in chars */
1866 blen = sv_len_utf8(bufsv);
1867 }
bbce6d69 1868 if (MARK < SP) {
a0d0e21e 1869 offset = SvIVx(*++MARK);
bbce6d69 1870 if (offset < 0) {
eb160463 1871 if (-offset > (IV)blen)
cea2e8a9 1872 DIE(aTHX_ "Offset outside string");
bbce6d69 1873 offset += blen;
eb160463 1874 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1875 DIE(aTHX_ "Offset outside string");
bbce6d69 1876 } else
a0d0e21e
LW		 1877 offset = 0;
1878 if (length > blen - offset)
1879 length = blen - offset;
7d59b7e4 1880 if (DO_UTF8(bufsv)) {
83003860 1881 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1882 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1883 }
1884 else {
1885 buffer = buffer+offset;
1886 }
a7092146 1887#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1888 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1889 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1890 buffer, length, 0);
a7092146
GS		 1891 }
1892 else
1893#endif
1894 {
94e4c244 1895 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1896 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1897 buffer, length);
a7092146 1898 }
a0d0e21e
LW		 1899 }
1900#ifdef HAS_SOCKET
1901 else if (SP > MARK) {
a0d0e21e 1902 STRLEN mlen;
1df70142 1903 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1904 /* length is really flags */
8c99d73e
GS		 1905 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1906 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1907 }
1908 else
7d59b7e4 1909 /* length is really flags */
8c99d73e 1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1911#else
1912 else
cea2e8a9 1913 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1914#endif
8c99d73e 1915 if (retval < 0)
a0d0e21e
LW		 1916 goto say_undef;
1917 SP = ORIGMARK;
f36eea10
JH		 1918 if (DO_UTF8(bufsv))
1919 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1920#if Size_t_size > IVSIZE
1921 PUSHn(retval);
1922#else
1923 PUSHi(retval);
1924#endif
a0d0e21e
LW		 1925 RETURN;
1926
1927 say_undef:
1928 SP = ORIGMARK;
1929 RETPUSHUNDEF;
1930}
1931
a0d0e21e
LW		 1932PP(pp_eof)
1933{
27da23d5 1934 dVAR; dSP;
a0d0e21e 1935 GV *gv;
5b468f54 1936 IO *io;
4592e6ca 1937 MAGIC *mg;
a0d0e21e 1938
32da55ab 1939 if (MAXARG == 0) {
146174a9
CB		 1940 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1941 IO *io;
ed2c6b9b 1942 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1943 io = GvIO(gv);
1944 if (io && !IoIFP(io)) {
1945 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1946 IoLINES(io) = 0;
1947 IoFLAGS(io) &= ~IOf_START;
2fbb330f 1948 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1949 sv_setpvn(GvSV(gv), "-", 1);
1950 SvSETMAGIC(GvSV(gv));
1951 }
1952 else if (!nextargv(gv))
1953 RETPUSHYES;
1954 }
1955 }
1956 else
1957 gv = PL_last_in_gv; /* eof */
1958 }
a0d0e21e 1959 else
146174a9 1960 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1961
5b468f54
AMS		 1962 if (gv && (io = GvIO(gv))
1963 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1964 {
4592e6ca 1965 PUSHMARK(SP);
5b468f54 1966 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1967 PUTBACK;
1968 ENTER;
864dbfa3 1969 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1970 LEAVE;
1971 SPAGAIN;
1972 RETURN;
1973 }
1974
54310121 1975 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1976 RETURN;
1977}
1978
1979PP(pp_tell)
1980{
27da23d5 1981 dVAR; dSP; dTARGET;
301e8125 1982 GV *gv;
5b468f54 1983 IO *io;
4592e6ca 1984 MAGIC *mg;
a0d0e21e 1985
c4420975
AL		 1986 if (MAXARG != 0)
1987 PL_last_in_gv = (GV*)POPs;
1988 gv = PL_last_in_gv;
4592e6ca 1989
5b468f54
AMS		 1990 if (gv && (io = GvIO(gv))
1991 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1992 {
4592e6ca 1993 PUSHMARK(SP);
5b468f54 1994 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1995 PUTBACK;
1996 ENTER;
864dbfa3 1997 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1998 LEAVE;
1999 SPAGAIN;
2000 RETURN;
2001 }
2002
146174a9
CB		 2003#if LSEEKSIZE > IVSIZE
2004 PUSHn( do_tell(gv) );
2005#else
a0d0e21e 2006 PUSHi( do_tell(gv) );
146174a9 2007#endif
a0d0e21e
LW		 2008 RETURN;
2009}
2010
137443ea 2011PP(pp_sysseek)
2012{
27da23d5 2013 dVAR; dSP;
a0d0e21e 2014 GV *gv;
5b468f54 2015 IO *io;
1df70142 2016 const int whence = POPi;
146174a9
CB		 2017#if LSEEKSIZE > IVSIZE
2018 Off_t offset = (Off_t)SvNVx(POPs);
2019#else
d9b3e12d 2020 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2021#endif
4592e6ca 2022 MAGIC *mg;
a0d0e21e 2023
3280af22 2024 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2025
5b468f54
AMS		 2026 if (gv && (io = GvIO(gv))
2027 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2028 {
4592e6ca 2029 PUSHMARK(SP);
5b468f54 2030 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2031#if LSEEKSIZE > IVSIZE
2032 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2033#else
b448e4fe 2034 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2035#endif
b448e4fe 2036 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2037 PUTBACK;
2038 ENTER;
864dbfa3 2039 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2040 LEAVE;
2041 SPAGAIN;
2042 RETURN;
2043 }
2044
533c011a 2045 if (PL_op->op_type == OP_SEEK)
8903cb82 2046 PUSHs(boolSV(do_seek(gv, offset, whence)));
2047 else {
b448e4fe
JH		 2048 Off_t sought = do_sysseek(gv, offset, whence);
2049 if (sought < 0)
146174a9
CB		 2050 PUSHs(&PL_sv_undef);
2051 else {
b448e4fe 2052 SV* sv = sought ?
146174a9 2053#if LSEEKSIZE > IVSIZE
b448e4fe 2054 newSVnv((NV)sought)
146174a9 2055#else
b448e4fe 2056 newSViv(sought)
146174a9
CB		 2057#endif
2058 : newSVpvn(zero_but_true, ZBTLEN);
2059 PUSHs(sv_2mortal(sv));
2060 }
8903cb82 2061 }
a0d0e21e
LW		 2062 RETURN;
2063}
2064
2065PP(pp_truncate)
2066{
39644a26 2067 dSP;
8c99d73e
GS		 2068 /* There seems to be no consensus on the length type of truncate()
2069 * and ftruncate(), both off_t and size_t have supporters. In
2070 * general one would think that when using large files, off_t is
2071 * at least as wide as size_t, so using an off_t should be okay. */
2072 /* XXX Configure probe for the length type of *truncate() needed XXX */
2073 Off_t len;
a0d0e21e 2074
25342a55 2075#if Off_t_size > IVSIZE
8c99d73e
GS		 2076 len = (Off_t)POPn;
2077#else
2078 len = (Off_t)POPi;
2079#endif
2080 /* Checking for length < 0 is problematic as the type might or
301e8125 2081 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2082 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2083 SETERRNO(0,0);
d05c1ba0 2084 {
d05c1ba0
JH		 2085 int result = 1;
2086 GV *tmpgv;
090bf15b
SR		 2087 IO *io;
2088
d05c1ba0 2089 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2090 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2091
090bf15b
SR		 2092 do_ftruncate_gv:
2093 if (!GvIO(tmpgv))
2094 result = 0;
d05c1ba0 2095 else {
090bf15b
SR		 2096 PerlIO *fp;
2097 io = GvIOp(tmpgv);
2098 do_ftruncate_io:
2099 TAINT_PROPER("truncate");
2100 if (!(fp = IoIFP(io))) {
2101 result = 0;
2102 }
2103 else {
2104 PerlIO_flush(fp);
cbdc8872 2105#ifdef HAS_TRUNCATE
090bf15b 2106 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2107#else
090bf15b 2108 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2109#endif
090bf15b
SR		 2110 result = 0;
2111 }
d05c1ba0 2112 }
cbdc8872 2113 }
d05c1ba0
JH		 2114 else {
2115 SV *sv = POPs;
83003860 2116 const char *name;
7a5fd60d 2117
d05c1ba0
JH		 2118 if (SvTYPE(sv) == SVt_PVGV) {
2119 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2120 goto do_ftruncate_gv;
d05c1ba0
JH		 2121 }
2122 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2123 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2124 goto do_ftruncate_gv;
2125 }
2126 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2127 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2128 goto do_ftruncate_io;
d05c1ba0 2129 }
1e422769 2130
83003860 2131 name = SvPV_nolen_const(sv);
d05c1ba0 2132 TAINT_PROPER("truncate");
cbdc8872 2133#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2134 if (truncate(name, len) < 0)
2135 result = 0;
cbdc8872 2136#else
d05c1ba0
JH		 2137 {
2138 int tmpfd;
2139
2140 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2141 result = 0;
d05c1ba0
JH		 2142 else {
2143 if (my_chsize(tmpfd, len) < 0)
2144 result = 0;
2145 PerlLIO_close(tmpfd);
2146 }
cbdc8872 2147 }
a0d0e21e 2148#endif
d05c1ba0 2149 }
a0d0e21e 2150
d05c1ba0
JH		 2151 if (result)
2152 RETPUSHYES;
2153 if (!errno)
93189314 2154 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2155 RETPUSHUNDEF;
2156 }
a0d0e21e
LW		 2157}
2158
a0d0e21e
LW		 2159PP(pp_ioctl)
2160{
39644a26 2161 dSP; dTARGET;
748a9306 2162 SV *argsv = POPs;
1df70142 2163 const unsigned int func = POPu;
e1ec3a88 2164 const int optype = PL_op->op_type;
a0d0e21e 2165 char *s;
324aa91a 2166 IV retval;
a0d0e21e 2167 GV *gv = (GV*)POPs;
c289d2f7 2168 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2169
748a9306 2170 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2171 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2172 report_evil_fh(gv, io, PL_op->op_type);
93189314 2173 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2174 RETPUSHUNDEF;
2175 }
2176
748a9306 2177 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2178 STRLEN len;
324aa91a 2179 STRLEN need;
748a9306 2180 s = SvPV_force(argsv, len);
324aa91a
HF		 2181 need = IOCPARM_LEN(func);
2182 if (len < need) {
2183 s = Sv_Grow(argsv, need + 1);
2184 SvCUR_set(argsv, need);
a0d0e21e
LW		 2185 }
2186
748a9306 2187 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2188 }
2189 else {
748a9306 2190 retval = SvIV(argsv);
c529f79d 2191 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2192 }
2193
2194 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2195
2196 if (optype == OP_IOCTL)
2197#ifdef HAS_IOCTL
76e3520e 2198 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2199#else
cea2e8a9 2200 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2201#endif
2202 else
c214f4ad
WB		 2203#ifndef HAS_FCNTL
2204 DIE(aTHX_ "fcntl is not implemented");
2205#else
55497cff 2206#if defined(OS2) && defined(__EMX__)
760ac839 2207 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2208#else
760ac839 2209 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2210#endif
6652bd42 2211#endif
a0d0e21e 2212
6652bd42 2213#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2214 if (SvPOK(argsv)) {
2215 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2216 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2217 OP_NAME(PL_op));
748a9306
LW		 2218 s[SvCUR(argsv)] = 0; /* put our null back */
2219 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2220 }
2221
2222 if (retval == -1)
2223 RETPUSHUNDEF;
2224 if (retval != 0) {
2225 PUSHi(retval);
2226 }
2227 else {
8903cb82 2228 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2229 }
4808266b 2230#endif
c214f4ad 2231 RETURN;
a0d0e21e
LW		 2232}
2233
2234PP(pp_flock)
2235{
9cad6237 2236#ifdef FLOCK
39644a26 2237 dSP; dTARGET;
a0d0e21e
LW		 2238 I32 value;
2239 int argtype;
2240 GV *gv;
bc37a18f 2241 IO *io = NULL;
760ac839 2242 PerlIO *fp;
16d20bd9 2243
a0d0e21e 2244 argtype = POPi;
32da55ab 2245 if (MAXARG == 0)
3280af22 2246 gv = PL_last_in_gv;
a0d0e21e
LW		 2247 else
2248 gv = (GV*)POPs;
bc37a18f
RG		 2249 if (gv && (io = GvIO(gv)))
2250 fp = IoIFP(io);
2251 else {
a0d0e21e 2252 fp = Nullfp;
bc37a18f
RG		 2253 io = NULL;
2254 }
a0d0e21e 2255 if (fp) {
68dc0745 2256 (void)PerlIO_flush(fp);
76e3520e 2257 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2258 }
cb50131a 2259 else {
bc37a18f
RG		 2260 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2261 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2262 value = 0;
93189314 2263 SETERRNO(EBADF,RMS_IFI);
cb50131a 2264 }
a0d0e21e
LW		 2265 PUSHi(value);
2266 RETURN;
2267#else
cea2e8a9 2268 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2269#endif
2270}
2271
2272/* Sockets. */
2273
2274PP(pp_socket)
2275{
a0d0e21e 2276#ifdef HAS_SOCKET
9cad6237 2277 dSP;
a0d0e21e
LW		 2278 GV *gv;
2279 register IO *io;
2280 int protocol = POPi;
2281 int type = POPi;
2282 int domain = POPi;
2283 int fd;
2284
2285 gv = (GV*)POPs;
c289d2f7 2286 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2287
c289d2f7
JH		 2288 if (!gv || !io) {
2289 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2290 report_evil_fh(gv, io, PL_op->op_type);
2291 if (IoIFP(io))
2292 do_close(gv, FALSE);
93189314 2293 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2294 RETPUSHUNDEF;
2295 }
2296
57171420
BS		 2297 if (IoIFP(io))
2298 do_close(gv, FALSE);
2299
a0d0e21e 2300 TAINT_PROPER("socket");
6ad3d225 2301 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2302 if (fd < 0)
2303 RETPUSHUNDEF;
460c8493
IZ		 2304 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2305 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2306 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2307 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2308 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2309 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2310 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2311 RETPUSHUNDEF;
2312 }
8d2a6795
GS		 2313#if defined(HAS_FCNTL) && defined(F_SETFD)
2314 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2315#endif
a0d0e21e 2316
d5ff79b3
OF		 2317#ifdef EPOC
2318 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2319#endif
2320
a0d0e21e
LW		 2321 RETPUSHYES;
2322#else
cea2e8a9 2323 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2324#endif
2325}
2326
2327PP(pp_sockpair)
2328{
c95c94b1 2329#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2330 dSP;
a0d0e21e
LW		 2331 GV *gv1;
2332 GV *gv2;
2333 register IO *io1;
2334 register IO *io2;
2335 int protocol = POPi;
2336 int type = POPi;
2337 int domain = POPi;
2338 int fd[2];
2339
2340 gv2 = (GV*)POPs;
2341 gv1 = (GV*)POPs;
c289d2f7
JH		 2342 io1 = gv1 ? GvIOn(gv1) : NULL;
2343 io2 = gv2 ? GvIOn(gv2) : NULL;
2344 if (!gv1 || !gv2 || !io1 || !io2) {
2345 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2346 if (!gv1 || !io1)
2347 report_evil_fh(gv1, io1, PL_op->op_type);
2348 if (!gv2 || !io2)
2349 report_evil_fh(gv1, io2, PL_op->op_type);
2350 }
2351 if (IoIFP(io1))
2352 do_close(gv1, FALSE);
2353 if (IoIFP(io2))
2354 do_close(gv2, FALSE);
a0d0e21e 2355 RETPUSHUNDEF;
c289d2f7 2356 }
a0d0e21e 2357
dc0d0a5f
JH		 2358 if (IoIFP(io1))
2359 do_close(gv1, FALSE);
2360 if (IoIFP(io2))
2361 do_close(gv2, FALSE);
57171420 2362
a0d0e21e 2363 TAINT_PROPER("socketpair");
6ad3d225 2364 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2365 RETPUSHUNDEF;
460c8493
IZ		 2366 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2367 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2368 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2369 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2370 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2371 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2372 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2373 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2374 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2375 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2376 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2377 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2378 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2379 RETPUSHUNDEF;
2380 }
8d2a6795
GS		 2381#if defined(HAS_FCNTL) && defined(F_SETFD)
2382 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2383 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2384#endif
a0d0e21e
LW		 2385
2386 RETPUSHYES;
2387#else
cea2e8a9 2388 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2389#endif
2390}
2391
2392PP(pp_bind)
2393{
a0d0e21e 2394#ifdef HAS_SOCKET
9cad6237 2395 dSP;
eec2d3df 2396#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2397 extern void GETPRIVMODE();
2398 extern void GETUSERMODE();
eec2d3df 2399#endif
748a9306 2400 SV *addrsv = POPs;
349d4f2f
NC		 2401 /* OK, so on what platform does bind modify addr? */
2402 const char *addr;
a0d0e21e
LW		 2403 GV *gv = (GV*)POPs;
2404 register IO *io = GvIOn(gv);
2405 STRLEN len;
eec2d3df
GS		 2406 int bind_ok = 0;
2407#ifdef MPE
2408 int mpeprivmode = 0;
2409#endif
a0d0e21e
LW		 2410
2411 if (!io || !IoIFP(io))
2412 goto nuts;
2413
349d4f2f 2414 addr = SvPV_const(addrsv, len);
a0d0e21e 2415 TAINT_PROPER("bind");
eec2d3df
GS		 2416#ifdef MPE /* Deal with MPE bind() peculiarities */
2417 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2418 /* The address *MUST* stupidly be zero. */
2419 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2420 /* PRIV mode is required to bind() to ports < 1024. */
2421 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2422 ((struct sockaddr_in *)addr)->sin_port > 0) {
2423 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2424 mpeprivmode = 1;
2425 }
2426 }
2427#endif /* MPE */
2428 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2429 (struct sockaddr *)addr, len) >= 0)
2430 bind_ok = 1;
2431
2432#ifdef MPE /* Switch back to USER mode */
2433 if (mpeprivmode)
2434 GETUSERMODE();
2435#endif /* MPE */
2436
2437 if (bind_ok)
a0d0e21e
LW		 2438 RETPUSHYES;
2439 else
2440 RETPUSHUNDEF;
2441
2442nuts:
599cee73 2443 if (ckWARN(WARN_CLOSED))
bc37a18f 2444 report_evil_fh(gv, io, PL_op->op_type);
93189314 2445 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2446 RETPUSHUNDEF;
2447#else
cea2e8a9 2448 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2449#endif
2450}
2451
2452PP(pp_connect)
2453{
a0d0e21e 2454#ifdef HAS_SOCKET
9cad6237 2455 dSP;
748a9306 2456 SV *addrsv = POPs;
349d4f2f 2457 const char *addr;
a0d0e21e
LW		 2458 GV *gv = (GV*)POPs;
2459 register IO *io = GvIOn(gv);
2460 STRLEN len;
2461
2462 if (!io || !IoIFP(io))
2463 goto nuts;
2464
349d4f2f 2465 addr = SvPV_const(addrsv, len);
a0d0e21e 2466 TAINT_PROPER("connect");
6ad3d225 2467 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2468 RETPUSHYES;
2469 else
2470 RETPUSHUNDEF;
2471
2472nuts:
599cee73 2473 if (ckWARN(WARN_CLOSED))
bc37a18f 2474 report_evil_fh(gv, io, PL_op->op_type);
93189314 2475 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2476 RETPUSHUNDEF;
2477#else
cea2e8a9 2478 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2479#endif
2480}
2481
2482PP(pp_listen)
2483{
a0d0e21e 2484#ifdef HAS_SOCKET
9cad6237 2485 dSP;
a0d0e21e
LW		 2486 int backlog = POPi;
2487 GV *gv = (GV*)POPs;
c289d2f7 2488 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2489
c289d2f7 2490 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2491 goto nuts;
2492
6ad3d225 2493 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2494 RETPUSHYES;
2495 else
2496 RETPUSHUNDEF;
2497
2498nuts:
599cee73 2499 if (ckWARN(WARN_CLOSED))
bc37a18f 2500 report_evil_fh(gv, io, PL_op->op_type);
93189314 2501 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2502 RETPUSHUNDEF;
2503#else
cea2e8a9 2504 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2505#endif
2506}
2507
2508PP(pp_accept)
2509{
a0d0e21e 2510#ifdef HAS_SOCKET
9cad6237 2511 dSP; dTARGET;
a0d0e21e
LW		 2512 GV *ngv;
2513 GV *ggv;
2514 register IO *nstio;
2515 register IO *gstio;
93d47a36
JH		 2516 char namebuf[MAXPATHLEN];
2517#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2518 Sock_size_t len = sizeof (struct sockaddr_in);
2519#else
2520 Sock_size_t len = sizeof namebuf;
2521#endif
a0d0e21e
LW		 2522 int fd;
2523
2524 ggv = (GV*)POPs;
2525 ngv = (GV*)POPs;
2526
2527 if (!ngv)
2528 goto badexit;
2529 if (!ggv)
2530 goto nuts;
2531
2532 gstio = GvIO(ggv);
2533 if (!gstio || !IoIFP(gstio))
2534 goto nuts;
2535
2536 nstio = GvIOn(ngv);
93d47a36 2537 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2538 if (fd < 0)
2539 goto badexit;
a70048fb
AB		 2540 if (IoIFP(nstio))
2541 do_close(ngv, FALSE);
460c8493
IZ		 2542 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2543 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2544 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2545 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2546 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2547 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2548 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2549 goto badexit;
2550 }
8d2a6795
GS		 2551#if defined(HAS_FCNTL) && defined(F_SETFD)
2552 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2553#endif
a0d0e21e 2554
ed79a026 2555#ifdef EPOC
93d47a36 2556 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2557 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2558#endif
381c1bae 2559#ifdef __SCO_VERSION__
93d47a36 2560 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2561#endif
ed79a026 2562
93d47a36 2563 PUSHp(namebuf, len);
a0d0e21e
LW		 2564 RETURN;
2565
2566nuts:
599cee73 2567 if (ckWARN(WARN_CLOSED))
bc37a18f 2568 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2569 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2570
2571badexit:
2572 RETPUSHUNDEF;
2573
2574#else
cea2e8a9 2575 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2576#endif
2577}
2578
2579PP(pp_shutdown)
2580{
a0d0e21e 2581#ifdef HAS_SOCKET
9cad6237 2582 dSP; dTARGET;
a0d0e21e
LW		 2583 int how = POPi;
2584 GV *gv = (GV*)POPs;
2585 register IO *io = GvIOn(gv);
2586
2587 if (!io || !IoIFP(io))
2588 goto nuts;
2589
6ad3d225 2590 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2591 RETURN;
2592
2593nuts:
599cee73 2594 if (ckWARN(WARN_CLOSED))
bc37a18f 2595 report_evil_fh(gv, io, PL_op->op_type);
93189314 2596 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2597 RETPUSHUNDEF;
2598#else
cea2e8a9 2599 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2600#endif
2601}
2602
a0d0e21e
LW		 2603PP(pp_ssockopt)
2604{
a0d0e21e 2605#ifdef HAS_SOCKET
9cad6237 2606 dSP;
533c011a 2607 int optype = PL_op->op_type;
a0d0e21e
LW		 2608 SV *sv;
2609 int fd;
2610 unsigned int optname;
2611 unsigned int lvl;
2612 GV *gv;
2613 register IO *io;
1e422769 2614 Sock_size_t len;
a0d0e21e
LW		 2615
2616 if (optype == OP_GSOCKOPT)
2617 sv = sv_2mortal(NEWSV(22, 257));
2618 else
2619 sv = POPs;
2620 optname = (unsigned int) POPi;
2621 lvl = (unsigned int) POPi;
2622
2623 gv = (GV*)POPs;
2624 io = GvIOn(gv);
2625 if (!io || !IoIFP(io))
2626 goto nuts;
2627
760ac839 2628 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2629 switch (optype) {
2630 case OP_GSOCKOPT:
748a9306 2631 SvGROW(sv, 257);
a0d0e21e 2632 (void)SvPOK_only(sv);
748a9306
LW		 2633 SvCUR_set(sv,256);
2634 *SvEND(sv) ='\0';
1e422769 2635 len = SvCUR(sv);
6ad3d225 2636 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2637 goto nuts2;
1e422769 2638 SvCUR_set(sv, len);
748a9306 2639 *SvEND(sv) ='\0';
a0d0e21e
LW		 2640 PUSHs(sv);
2641 break;
2642 case OP_SSOCKOPT: {
1215b447
JH		 2643#if defined(__SYMBIAN32__)
2644# define SETSOCKOPT_OPTION_VALUE_T void *
2645#else
2646# define SETSOCKOPT_OPTION_VALUE_T const char *
2647#endif
2648 /* XXX TODO: We need to have a proper type (a Configure probe,
2649 * etc.) for what the C headers think of the third argument of
2650 * setsockopt(), the option_value read-only buffer: is it
2651 * a "char *", or a "void *", const or not. Some compilers
2652 * don't take kindly to e.g. assuming that "char *" implicitly
2653 * promotes to a "void *", or to explicitly promoting/demoting
2654 * consts to non/vice versa. The "const void *" is the SUS
2655 * definition, but that does not fly everywhere for the above
2656 * reasons. */
2657 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769 2658 int aint;
2659 if (SvPOKp(sv)) {
2d8e6c8d 2660 STRLEN l;
1215b447 2661 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2662 len = l;
1e422769 2663 }
56ee1660 2664 else {
a0d0e21e 2665 aint = (int)SvIV(sv);
1215b447 2666 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW		 2667 len = sizeof(int);
2668 }
6ad3d225 2669 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2670 goto nuts2;
3280af22 2671 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2672 }
2673 break;
2674 }
2675 RETURN;
2676
2677nuts:
599cee73 2678 if (ckWARN(WARN_CLOSED))
bc37a18f 2679 report_evil_fh(gv, io, optype);
93189314 2680 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2681nuts2:
2682 RETPUSHUNDEF;
2683
2684#else
af51a00e 2685 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 2686#endif
2687}
2688
a0d0e21e
LW		 2689PP(pp_getpeername)
2690{
a0d0e21e 2691#ifdef HAS_SOCKET
9cad6237 2692 dSP;
533c011a 2693 int optype = PL_op->op_type;
a0d0e21e
LW		 2694 SV *sv;
2695 int fd;
2696 GV *gv = (GV*)POPs;
2697 register IO *io = GvIOn(gv);
1e422769 2698 Sock_size_t len;
a0d0e21e
LW		 2699
2700 if (!io || !IoIFP(io))
2701 goto nuts;
2702
2703 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2704 (void)SvPOK_only(sv);
1e422769 2705 len = 256;
2706 SvCUR_set(sv, len);
748a9306 2707 *SvEND(sv) ='\0';
760ac839 2708 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2709 switch (optype) {
2710 case OP_GETSOCKNAME:
6ad3d225 2711 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2712 goto nuts2;
2713 break;
2714 case OP_GETPEERNAME:
6ad3d225 2715 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2716 goto nuts2;
490ab354
JH		 2717#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2718 {
2719 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";
2720 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2721 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2722 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2723 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2724 goto nuts2;
490ab354
JH		 2725 }
2726 }
2727#endif
a0d0e21e
LW		 2728 break;
2729 }
13826f2c
CS		 2730#ifdef BOGUS_GETNAME_RETURN
2731 /* Interactive Unix, getpeername() and getsockname()
2732 does not return valid namelen */
1e422769 2733 if (len == BOGUS_GETNAME_RETURN)
2734 len = sizeof(struct sockaddr);
13826f2c 2735#endif
1e422769 2736 SvCUR_set(sv, len);
748a9306 2737 *SvEND(sv) ='\0';
a0d0e21e
LW		 2738 PUSHs(sv);
2739 RETURN;
2740
2741nuts:
599cee73 2742 if (ckWARN(WARN_CLOSED))
bc37a18f 2743 report_evil_fh(gv, io, optype);
93189314 2744 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2745nuts2:
2746 RETPUSHUNDEF;
2747
2748#else
af51a00e 2749 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 2750#endif
2751}
2752
2753/* Stat calls. */
2754
a0d0e21e
LW		 2755PP(pp_stat)
2756{
39644a26 2757 dSP;
2dd78f96 2758 GV *gv;
54310121 2759 I32 gimme;
a0d0e21e
LW		 2760 I32 max = 13;
2761
533c011a 2762 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2763 gv = cGVOP_gv;
8a4e5b40 2764 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2765 if (gv != PL_defgv) {
2766 if (ckWARN(WARN_IO))
9014280d 2767 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2768 "lstat() on filehandle %s", GvENAME(gv));
2769 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2770 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2771 }
2772
748a9306 2773 do_fstat:
2dd78f96 2774 if (gv != PL_defgv) {
3280af22 2775 PL_laststype = OP_STAT;
2dd78f96 2776 PL_statgv = gv;
c69006e4 2777 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2778 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2779 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2780 }
9ddeeac9 2781 if (PL_laststatval < 0) {
2dd78f96
JH		 2782 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2783 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2784 max = 0;
9ddeeac9 2785 }
a0d0e21e
LW		 2786 }
2787 else {
748a9306
LW		 2788 SV* sv = POPs;
2789 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2790 gv = (GV*)sv;
748a9306
LW		 2791 goto do_fstat;
2792 }
2793 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2794 gv = (GV*)SvRV(sv);
5d3e98de 2795 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2796 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2797 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2798 goto do_fstat;
2799 }
0510663f 2800 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2801 PL_statgv = Nullgv;
533c011a
NIS		 2802 PL_laststype = PL_op->op_type;
2803 if (PL_op->op_type == OP_LSTAT)
0510663f 2804 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2805 else
0510663f 2806 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2807 if (PL_laststatval < 0) {
0510663f 2808 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2809 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2810 max = 0;
2811 }
2812 }
2813
54310121 2814 gimme = GIMME_V;
2815 if (gimme != G_ARRAY) {
2816 if (gimme != G_VOID)
2817 XPUSHs(boolSV(max));
2818 RETURN;
a0d0e21e
LW		 2819 }
2820 if (max) {
36477c24 2821 EXTEND(SP, max);
2822 EXTEND_MORTAL(max);
1ff81528
PL		 2823 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2824 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2825 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2826 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2827#if Uid_t_size > IVSIZE
2828 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2829#else
23dcd6c8 2830# if Uid_t_sign <= 0
1ff81528 2831 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2832# else
2833 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2834# endif
146174a9 2835#endif
301e8125 2836#if Gid_t_size > IVSIZE
146174a9
CB		 2837 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2838#else
23dcd6c8 2839# if Gid_t_sign <= 0
1ff81528 2840 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2841# else
2842 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2843# endif
146174a9 2844#endif
cbdc8872 2845#ifdef USE_STAT_RDEV
1ff81528 2846 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2847#else
79cb57f6 2848 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2849#endif
146174a9 2850#if Off_t_size > IVSIZE
4a9d6100 2851 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2852#else
1ff81528 2853 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2854#endif
cbdc8872 2855#ifdef BIG_TIME
172ae379
JH		 2856 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2857 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2858 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2859#else
1ff81528
PL		 2860 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2861 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2862 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2863#endif
a0d0e21e 2864#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2865 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2867#else
79cb57f6
GS		 2868 PUSHs(sv_2mortal(newSVpvn("", 0)));
2869 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2870#endif
2871 }
2872 RETURN;
2873}
2874
fbb0b3b3
RGS		 2875/* This macro is used by the stacked filetest operators :
2876 * if the previous filetest failed, short-circuit and pass its value.
2877 * Else, discard it from the stack and continue. --rgs
2878 */
2879#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2880 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2881 else { (void)POPs; PUTBACK; } \
2882 }
2883
a0d0e21e
LW		 2884PP(pp_ftrread)
2885{
9cad6237 2886 I32 result;
2a3ff820 2887 dSP;
fbb0b3b3 2888 STACKED_FTEST_CHECK;
5ff3f7a4 2889#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2890 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2891 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2892 if (result == 0)
2893 RETPUSHYES;
2894 if (result < 0)
2895 RETPUSHUNDEF;
2896 RETPUSHNO;
22865c03
GS		 2897 }
2898 else
cea2e8a9 2899 result = my_stat();
5ff3f7a4 2900#else
cea2e8a9 2901 result = my_stat();
5ff3f7a4 2902#endif
22865c03 2903 SPAGAIN;
a0d0e21e
LW		 2904 if (result < 0)
2905 RETPUSHUNDEF;
3280af22 2906 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2907 RETPUSHYES;
2908 RETPUSHNO;
2909}
2910
2911PP(pp_ftrwrite)
2912{
9cad6237 2913 I32 result;
2a3ff820 2914 dSP;
fbb0b3b3 2915 STACKED_FTEST_CHECK;
5ff3f7a4 2916#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2917 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2918 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2919 if (result == 0)
2920 RETPUSHYES;
2921 if (result < 0)
2922 RETPUSHUNDEF;
2923 RETPUSHNO;
22865c03
GS		 2924 }
2925 else
cea2e8a9 2926 result = my_stat();
5ff3f7a4 2927#else
cea2e8a9 2928 result = my_stat();
5ff3f7a4 2929#endif
22865c03 2930 SPAGAIN;
a0d0e21e
LW		 2931 if (result < 0)
2932 RETPUSHUNDEF;
3280af22 2933 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2934 RETPUSHYES;
2935 RETPUSHNO;
2936}
2937
2938PP(pp_ftrexec)
2939{
9cad6237 2940 I32 result;
2a3ff820 2941 dSP;
fbb0b3b3 2942 STACKED_FTEST_CHECK;
5ff3f7a4 2943#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2944 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2945 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2946 if (result == 0)
2947 RETPUSHYES;
2948 if (result < 0)
2949 RETPUSHUNDEF;
2950 RETPUSHNO;
22865c03
GS		 2951 }
2952 else
cea2e8a9 2953 result = my_stat();
5ff3f7a4 2954#else
cea2e8a9 2955 result = my_stat();
5ff3f7a4 2956#endif
22865c03 2957 SPAGAIN;
a0d0e21e
LW		 2958 if (result < 0)
2959 RETPUSHUNDEF;
3280af22 2960 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2961 RETPUSHYES;
2962 RETPUSHNO;
2963}
2964
2965PP(pp_fteread)
2966{
9cad6237 2967 I32 result;
2a3ff820 2968 dSP;
fbb0b3b3 2969 STACKED_FTEST_CHECK;
5ff3f7a4 2970#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 2971 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2972 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2973 if (result == 0)
2974 RETPUSHYES;
2975 if (result < 0)
2976 RETPUSHUNDEF;
2977 RETPUSHNO;
22865c03
GS		 2978 }
2979 else
cea2e8a9 2980 result = my_stat();
5ff3f7a4 2981#else
cea2e8a9 2982 result = my_stat();
5ff3f7a4 2983#endif
22865c03 2984 SPAGAIN;
a0d0e21e
LW		 2985 if (result < 0)
2986 RETPUSHUNDEF;
3280af22 2987 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2988 RETPUSHYES;
2989 RETPUSHNO;
2990}
2991
2992PP(pp_ftewrite)
2993{
9cad6237 2994 I32 result;
2a3ff820 2995 dSP;
fbb0b3b3 2996 STACKED_FTEST_CHECK;
5ff3f7a4 2997#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 2998 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2999 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3000 if (result == 0)
3001 RETPUSHYES;
3002 if (result < 0)
3003 RETPUSHUNDEF;
3004 RETPUSHNO;
22865c03
GS		 3005 }
3006 else
cea2e8a9 3007 result = my_stat();
5ff3f7a4 3008#else
cea2e8a9 3009 result = my_stat();
5ff3f7a4 3010#endif
22865c03 3011 SPAGAIN;
a0d0e21e
LW		 3012 if (result < 0)
3013 RETPUSHUNDEF;
3280af22 3014 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3015 RETPUSHYES;
3016 RETPUSHNO;
3017}
3018
3019PP(pp_fteexec)
3020{
9cad6237 3021 I32 result;
2a3ff820 3022 dSP;
fbb0b3b3 3023 STACKED_FTEST_CHECK;
5ff3f7a4 3024#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3025 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3026 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3027 if (result == 0)
3028 RETPUSHYES;
3029 if (result < 0)
3030 RETPUSHUNDEF;
3031 RETPUSHNO;
22865c03
GS		 3032 }
3033 else
cea2e8a9 3034 result = my_stat();
5ff3f7a4 3035#else
cea2e8a9 3036 result = my_stat();
5ff3f7a4 3037#endif
22865c03 3038 SPAGAIN;
a0d0e21e
LW		 3039 if (result < 0)
3040 RETPUSHUNDEF;
3280af22 3041 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3042 RETPUSHYES;
3043 RETPUSHNO;
3044}
3045
3046PP(pp_ftis)
3047{
fbb0b3b3 3048 I32 result;
d7f0a2f4 3049 const int op_type = PL_op->op_type;
2a3ff820 3050 dSP;
fbb0b3b3
RGS		 3051 STACKED_FTEST_CHECK;
3052 result = my_stat();
3053 SPAGAIN;
a0d0e21e
LW		 3054 if (result < 0)
3055 RETPUSHUNDEF;
d7f0a2f4
NC		 3056 if (op_type == OP_FTIS)
3057 RETPUSHYES;
957b0e1d 3058 {
d7f0a2f4
NC		 3059 /* You can't dTARGET inside OP_FTIS, because you'll get
3060 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3061 dTARGET;
d7f0a2f4 3062 switch (op_type) {
957b0e1d
NC		 3063 case OP_FTSIZE:
3064#if Off_t_size > IVSIZE
3065 PUSHn(PL_statcache.st_size);
3066#else
3067 PUSHi(PL_statcache.st_size);
3068#endif
3069 break;
3070 case OP_FTMTIME:
3071 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3072 break;
3073 case OP_FTATIME:
3074 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3075 break;
3076 case OP_FTCTIME:
3077 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3078 break;
3079 }
3080 }
3081 RETURN;
a0d0e21e
LW		 3082}
3083
a0d0e21e
LW		 3084PP(pp_ftrowned)
3085{
fbb0b3b3 3086 I32 result;
2a3ff820 3087 dSP;
fbb0b3b3
RGS		 3088 STACKED_FTEST_CHECK;
3089 result = my_stat();
3090 SPAGAIN;
a0d0e21e
LW		 3091 if (result < 0)
3092 RETPUSHUNDEF;
f1cb2d48
NC		 3093 switch (PL_op->op_type) {
3094 case OP_FTROWNED:
3095 if (PL_statcache.st_uid == PL_uid);
3096 RETPUSHYES;
3097 break;
3098 case OP_FTEOWNED:
3099 if (PL_statcache.st_uid == PL_euid)
3100 RETPUSHYES;
3101 break;
3102 case OP_FTZERO:
3103 if (PL_statcache.st_size == 0)
3104 RETPUSHYES;
3105 break;
3106 case OP_FTSOCK:
3107 if (S_ISSOCK(PL_statcache.st_mode))
3108 RETPUSHYES;
3109 break;
3110 case OP_FTCHR:
3111 if (S_ISCHR(PL_statcache.st_mode))
3112 RETPUSHYES;
3113 break;
3114 case OP_FTBLK:
3115 if (S_ISBLK(PL_statcache.st_mode))
3116 RETPUSHYES;
3117 break;
3118 case OP_FTFILE:
3119 if (S_ISREG(PL_statcache.st_mode))
3120 RETPUSHYES;
3121 break;
3122 case OP_FTDIR:
3123 if (S_ISDIR(PL_statcache.st_mode))
3124 RETPUSHYES;
3125 break;
3126 case OP_FTPIPE:
3127 if (S_ISFIFO(PL_statcache.st_mode))
3128 RETPUSHYES;
3129 break;
3130 }
a0d0e21e
LW		 3131 RETPUSHNO;
3132}
3133
3134PP(pp_ftlink)
3135{
9cad6237 3136 I32 result = my_lstat();
2a3ff820 3137 dSP;
a0d0e21e
LW		 3138 if (result < 0)
3139 RETPUSHUNDEF;
3280af22 3140 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3141 RETPUSHYES;
3142 RETPUSHNO;
3143}
3144
3145PP(pp_ftsuid)
3146{
39644a26 3147 dSP;
a0d0e21e 3148#ifdef S_ISUID
fbb0b3b3
RGS		 3149 I32 result;
3150 STACKED_FTEST_CHECK;
3151 result = my_stat();
a0d0e21e
LW		 3152 SPAGAIN;
3153 if (result < 0)
3154 RETPUSHUNDEF;
3280af22 3155 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3156 RETPUSHYES;
3157#endif
3158 RETPUSHNO;
3159}
3160
3161PP(pp_ftsgid)
3162{
39644a26 3163 dSP;
a0d0e21e 3164#ifdef S_ISGID
fbb0b3b3
RGS		 3165 I32 result;
3166 STACKED_FTEST_CHECK;
3167 result = my_stat();
a0d0e21e
LW		 3168 SPAGAIN;
3169 if (result < 0)
3170 RETPUSHUNDEF;
3280af22 3171 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3172 RETPUSHYES;
3173#endif
3174 RETPUSHNO;
3175}
3176
3177PP(pp_ftsvtx)
3178{
39644a26 3179 dSP;
a0d0e21e 3180#ifdef S_ISVTX
fbb0b3b3
RGS		 3181 I32 result;
3182 STACKED_FTEST_CHECK;
3183 result = my_stat();
a0d0e21e
LW		 3184 SPAGAIN;
3185 if (result < 0)
3186 RETPUSHUNDEF;
3280af22 3187 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3188 RETPUSHYES;
3189#endif
3190 RETPUSHNO;
3191}
3192
3193PP(pp_fttty)
3194{
39644a26 3195 dSP;
a0d0e21e
LW		 3196 int fd;
3197 GV *gv;
7a5fd60d 3198 SV *tmpsv = Nullsv;
fb73857a 3199
fbb0b3b3
RGS		 3200 STACKED_FTEST_CHECK;
3201
533c011a 3202 if (PL_op->op_flags & OPf_REF)
146174a9 3203 gv = cGVOP_gv;
fb73857a 3204 else if (isGV(TOPs))
3205 gv = (GV*)POPs;
3206 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3207 gv = (GV*)SvRV(POPs);
a0d0e21e 3208 else
7a5fd60d 3209 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3210
a0d0e21e 3211 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3212 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3213 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3214 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3215 if (isDIGIT(*tmps))
3216 fd = atoi(tmps);
3217 else
3218 RETPUSHUNDEF;
3219 }
a0d0e21e
LW		 3220 else
3221 RETPUSHUNDEF;
6ad3d225 3222 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3223 RETPUSHYES;
3224 RETPUSHNO;
3225}
3226
16d20bd9
AD		 3227#if defined(atarist) /* this will work with atariST. Configure will
3228 make guesses for other systems. */
3229# define FILE_base(f) ((f)->_base)
3230# define FILE_ptr(f) ((f)->_ptr)
3231# define FILE_cnt(f) ((f)->_cnt)
3232# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3233#endif
3234
3235PP(pp_fttext)
3236{
39644a26 3237 dSP;
a0d0e21e
LW		 3238 I32 i;
3239 I32 len;
3240 I32 odd = 0;
3241 STDCHAR tbuf[512];
3242 register STDCHAR *s;
3243 register IO *io;
5f05dabc 3244 register SV *sv;
3245 GV *gv;
146174a9 3246 PerlIO *fp;
a0d0e21e 3247
fbb0b3b3
RGS		 3248 STACKED_FTEST_CHECK;
3249
533c011a 3250 if (PL_op->op_flags & OPf_REF)
146174a9 3251 gv = cGVOP_gv;
5f05dabc 3252 else if (isGV(TOPs))
3253 gv = (GV*)POPs;
3254 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3255 gv = (GV*)SvRV(POPs);
3256 else
3257 gv = Nullgv;
3258
3259 if (gv) {
a0d0e21e 3260 EXTEND(SP, 1);
3280af22
NIS		 3261 if (gv == PL_defgv) {
3262 if (PL_statgv)
3263 io = GvIO(PL_statgv);
a0d0e21e 3264 else {
3280af22 3265 sv = PL_statname;
a0d0e21e
LW		 3266 goto really_filename;
3267 }
3268 }
3269 else {
3280af22
NIS		 3270 PL_statgv = gv;
3271 PL_laststatval = -1;
c69006e4 3272 sv_setpvn(PL_statname, "", 0);
3280af22 3273 io = GvIO(PL_statgv);
a0d0e21e
LW		 3274 }
3275 if (io && IoIFP(io)) {
5f05dabc 3276 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3277 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3278 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3279 if (PL_laststatval < 0)
5f05dabc 3280 RETPUSHUNDEF;
9cbac4c7 3281 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3282 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3283 RETPUSHNO;
3284 else
3285 RETPUSHYES;
9cbac4c7 3286 }
a20bf0c3 3287 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3288 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3289 if (i != EOF)
760ac839 3290 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3291 }
a20bf0c3 3292 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3293 RETPUSHYES;
a20bf0c3
JH		 3294 len = PerlIO_get_bufsiz(IoIFP(io));
3295 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3296 /* sfio can have large buffers - limit to 512 */
3297 if (len > 512)
3298 len = 512;
a0d0e21e
LW		 3299 }
3300 else {
2dd78f96 3301 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3302 gv = cGVOP_gv;
2dd78f96 3303 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3304 }
93189314 3305 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3306 RETPUSHUNDEF;
3307 }
3308 }
3309 else {
3310 sv = POPs;
5f05dabc 3311 really_filename:
3280af22 3312 PL_statgv = Nullgv;
5c9aa243 3313 PL_laststype = OP_STAT;
d5263905 3314 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3315 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3316 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3317 '\n'))
9014280d 3318 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3319 RETPUSHUNDEF;
3320 }
146174a9
CB		 3321 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3322 if (PL_laststatval < 0) {
3323 (void)PerlIO_close(fp);
5f05dabc 3324 RETPUSHUNDEF;
146174a9 3325 }
60382766 3326 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3327 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3328 (void)PerlIO_close(fp);
a0d0e21e 3329 if (len <= 0) {
533c011a 3330 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3331 RETPUSHNO; /* special case NFS directories */
3332 RETPUSHYES; /* null file is anything */
3333 }
3334 s = tbuf;
3335 }
3336
3337 /* now scan s to look for textiness */
4633a7c4 3338 /* XXX ASCII dependent code */
a0d0e21e 3339
146174a9
CB		 3340#if defined(DOSISH) || defined(USEMYBINMODE)
3341 /* ignore trailing ^Z on short files */
3342 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3343 --len;
3344#endif
3345
a0d0e21e
LW		 3346 for (i = 0; i < len; i++, s++) {
3347 if (!*s) { /* null never allowed in text */
3348 odd += len;
3349 break;
3350 }
9d116dd7 3351#ifdef EBCDIC
301e8125 3352 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3353 odd++;
3354#else
146174a9
CB		 3355 else if (*s & 128) {
3356#ifdef USE_LOCALE
2de3dbcc 3357 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3358 continue;
3359#endif
3360 /* utf8 characters don't count as odd */
fd400ab9 3361 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3362 int ulen = UTF8SKIP(s);
3363 if (ulen < len - i) {
3364 int j;
3365 for (j = 1; j < ulen; j++) {
fd400ab9 3366 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3367 goto not_utf8;
3368 }
3369 --ulen; /* loop does extra increment */
3370 s += ulen;
3371 i += ulen;
3372 continue;
3373 }
3374 }
3375 not_utf8:
3376 odd++;
146174a9 3377 }
a0d0e21e
LW		 3378 else if (*s < 32 &&
3379 *s != '\n' && *s != '\r' && *s != '\b' &&
3380 *s != '\t' && *s != '\f' && *s != 27)
3381 odd++;
9d116dd7 3382#endif
a0d0e21e
LW		 3383 }
3384
533c011a 3385 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3386 RETPUSHNO;
3387 else
3388 RETPUSHYES;
3389}
3390
a0d0e21e
LW		 3391/* File calls. */
3392
3393PP(pp_chdir)
3394{
39644a26 3395 dSP; dTARGET;
c4aca7d0 3396 const char *tmps = 0;
9a957fbc 3397 GV *gv = NULL;
a0d0e21e 3398
c4aca7d0 3399 if( MAXARG == 1 ) {
9a957fbc 3400 SV * const sv = POPs;
c4aca7d0
GA		 3401 if (SvTYPE(sv) == SVt_PVGV) {
3402 gv = (GV*)sv;
3403 }
3404 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3405 gv = (GV*)SvRV(sv);
3406 }
3407 else {
3408 tmps = SvPVx_nolen_const(sv);
3409 }
3410 }
35ae6b54 3411
c4aca7d0 3412 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3413 HV * const table = GvHVn(PL_envgv);
3414 SV **svp;
3415
3416 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3417 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
491527d0 3418#ifdef VMS
9a957fbc 3419 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
491527d0 3420#endif
35ae6b54
MS		 3421 )
3422 {
3423 if( MAXARG == 1 )
9014280d 3424 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3425 tmps = SvPV_nolen_const(*svp);
35ae6b54 3426 }
72f496dc 3427 else {
389ec635 3428 PUSHi(0);
b7ab37f8 3429 TAINT_PROPER("chdir");
389ec635
MS		 3430 RETURN;
3431 }
8ea155d1 3432 }
8ea155d1 3433
a0d0e21e 3434 TAINT_PROPER("chdir");
c4aca7d0
GA		 3435 if (gv) {
3436#ifdef HAS_FCHDIR
9a957fbc 3437 IO* const io = GvIO(gv);
c4aca7d0
GA		 3438 if (io) {
3439 if (IoIFP(io)) {
3440 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3441 }
3442 else if (IoDIRP(io)) {
3443#ifdef HAS_DIRFD
3444 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3445#else
0f1f2428 3446 DIE(aTHX_ PL_no_func, "dirfd");
c4aca7d0
GA		 3447#endif
3448 }
3449 else {
3450 PUSHi(0);
3451 }
3452 }
3453 else {
3454 PUSHi(0);
3455 }
3456#else
3457 DIE(aTHX_ PL_no_func, "fchdir");
3458#endif
3459 }
3460 else
b8ffc8df 3461 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3462#ifdef VMS
3463 /* Clear the DEFAULT element of ENV so we'll get the new value
3464 * in the future. */
6b88bc9c 3465 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3466#endif
a0d0e21e
LW		 3467 RETURN;
3468}
3469
3470PP(pp_chown)
3471{
a0d0e21e 3472#ifdef HAS_CHOWN
76ffd3b9
IZ		 3473 dSP; dMARK; dTARGET;
3474 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3475
a0d0e21e
LW		 3476 SP = MARK;
3477 PUSHi(value);
3478 RETURN;
3479#else
0322a713 3480 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3481#endif
3482}
3483
3484PP(pp_chroot)
3485{
a0d0e21e 3486#ifdef HAS_CHROOT
76ffd3b9 3487 dSP; dTARGET;
d05c1ba0 3488 char *tmps = POPpx;
a0d0e21e
LW		 3489 TAINT_PROPER("chroot");
3490 PUSHi( chroot(tmps) >= 0 );
3491 RETURN;
3492#else
cea2e8a9 3493 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3494#endif
3495}
3496
3497PP(pp_unlink)
3498{
39644a26 3499 dSP; dMARK; dTARGET;
a0d0e21e 3500 I32 value;
533c011a 3501 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3502 SP = MARK;
3503 PUSHi(value);
3504 RETURN;
3505}
3506
3507PP(pp_chmod)
3508{
39644a26 3509 dSP; dMARK; dTARGET;
a0d0e21e 3510 I32 value;
533c011a 3511 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3512 SP = MARK;
3513 PUSHi(value);
3514 RETURN;
3515}
3516
3517PP(pp_utime)
3518{
39644a26 3519 dSP; dMARK; dTARGET;
a0d0e21e 3520 I32 value;
533c011a 3521 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3522 SP = MARK;
3523 PUSHi(value);
3524 RETURN;
3525}
3526
3527PP(pp_rename)
3528{
39644a26 3529 dSP; dTARGET;
a0d0e21e 3530 int anum;
e62f0680
NC		 3531 const char *tmps2 = POPpconstx;
3532 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3533 TAINT_PROPER("rename");
3534#ifdef HAS_RENAME
baed7233 3535 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3536#else
6b88bc9c 3537 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3538 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3539 anum = 1;
3540 else {
3654eb6c 3541 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3542 (void)UNLINK(tmps2);
3543 if (!(anum = link(tmps, tmps2)))
3544 anum = UNLINK(tmps);
3545 }
a0d0e21e
LW		 3546 }
3547#endif
3548 SETi( anum >= 0 );
3549 RETURN;
3550}
3551
3552PP(pp_link)
3553{
a0d0e21e 3554#ifdef HAS_LINK
370f6000 3555 dSP; dTARGET;
e62f0680
NC		 3556 const char *tmps2 = POPpconstx;
3557 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3558 TAINT_PROPER("link");
146174a9 3559 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3560 RETURN;
a0d0e21e 3561#else
0322a713 3562 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3563#endif
a0d0e21e
LW		 3564}
3565
3566PP(pp_symlink)
3567{
a0d0e21e 3568#ifdef HAS_SYMLINK
9cad6237 3569 dSP; dTARGET;
83003860
NC		 3570 const char *tmps2 = POPpconstx;
3571 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3572 TAINT_PROPER("symlink");
3573 SETi( symlink(tmps, tmps2) >= 0 );
3574 RETURN;
3575#else
cea2e8a9 3576 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3577#endif
3578}
3579
3580PP(pp_readlink)
3581{
76ffd3b9 3582 dSP;
a0d0e21e 3583#ifdef HAS_SYMLINK
76ffd3b9 3584 dTARGET;
10516c54 3585 const char *tmps;
46fc3d4c 3586 char buf[MAXPATHLEN];
a0d0e21e 3587 int len;
46fc3d4c 3588
fb73857a 3589#ifndef INCOMPLETE_TAINTS
3590 TAINT;
3591#endif
10516c54 3592 tmps = POPpconstx;
97dcea33 3593 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3594 EXTEND(SP, 1);
3595 if (len < 0)
3596 RETPUSHUNDEF;
3597 PUSHp(buf, len);
3598 RETURN;
3599#else
3600 EXTEND(SP, 1);
3601 RETSETUNDEF; /* just pretend it's a normal file */
3602#endif
3603}
3604
3605#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3606STATIC int
b464bac0 3607S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3608{
b464bac0 3609 char * const save_filename = filename;
1e422769 3610 char *cmdline;
3611 char *s;
760ac839 3612 PerlIO *myfp;
1e422769 3613 int anum = 1;
a0d0e21e 3614
a02a5408 3615 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
1e422769 3616 strcpy(cmdline, cmd);
3617 strcat(cmdline, " ");
3618 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3619 *s++ = '\\';
3620 *s++ = *filename++;
3621 }
3622 strcpy(s, " 2>&1");
6ad3d225 3623 myfp = PerlProc_popen(cmdline, "r");
1e422769 3624 Safefree(cmdline);
3625
a0d0e21e 3626 if (myfp) {
1e422769 3627 SV *tmpsv = sv_newmortal();
6b88bc9c 3628 /* Need to save/restore 'PL_rs' ?? */
760ac839 3629 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3630 (void)PerlProc_pclose(myfp);
a0d0e21e 3631 if (s != Nullch) {
1e422769 3632 int e;
3633 for (e = 1;
a0d0e21e 3634#ifdef HAS_SYS_ERRLIST
1e422769 3635 e <= sys_nerr
3636#endif
3637 ; e++)
3638 {
3639 /* you don't see this */
3640 char *errmsg =
3641#ifdef HAS_SYS_ERRLIST
3642 sys_errlist[e]
a0d0e21e 3643#else
1e422769 3644 strerror(e)
a0d0e21e 3645#endif
1e422769 3646 ;
3647 if (!errmsg)
3648 break;
3649 if (instr(s, errmsg)) {
3650 SETERRNO(e,0);
3651 return 0;
3652 }
a0d0e21e 3653 }
748a9306 3654 SETERRNO(0,0);
a0d0e21e
LW		 3655#ifndef EACCES
3656#define EACCES EPERM
3657#endif
1e422769 3658 if (instr(s, "cannot make"))
93189314 3659 SETERRNO(EEXIST,RMS_FEX);
1e422769 3660 else if (instr(s, "existing file"))
93189314 3661 SETERRNO(EEXIST,RMS_FEX);
1e422769 3662 else if (instr(s, "ile exists"))
93189314 3663 SETERRNO(EEXIST,RMS_FEX);
1e422769 3664 else if (instr(s, "non-exist"))
93189314 3665 SETERRNO(ENOENT,RMS_FNF);
1e422769 3666 else if (instr(s, "does not exist"))
93189314 3667 SETERRNO(ENOENT,RMS_FNF);
1e422769 3668 else if (instr(s, "not empty"))
93189314 3669 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3670 else if (instr(s, "cannot access"))
93189314 3671 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3672 else
93189314 3673 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3674 return 0;
3675 }
3676 else { /* some mkdirs return no failure indication */
6b88bc9c 3677 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3678 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3679 anum = !anum;
3680 if (anum)
748a9306 3681 SETERRNO(0,0);
a0d0e21e 3682 else
93189314 3683 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3684 }
3685 return anum;
3686 }
3687 else
3688 return 0;
3689}
3690#endif
3691
0c54f65b
RGS		 3692/* This macro removes trailing slashes from a directory name.
3693 * Different operating and file systems take differently to
3694 * trailing slashes. According to POSIX 1003.1 1996 Edition
3695 * any number of trailing slashes should be allowed.
3696 * Thusly we snip them away so that even non-conforming
3697 * systems are happy.
3698 * We should probably do this "filtering" for all
3699 * the functions that expect (potentially) directory names:
3700 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3701 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3702
5c144d81 3703#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3704 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3705 do { \
3706 (len)--; \
3707 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3708 (tmps) = savepvn((tmps), (len)); \
3709 (copy) = TRUE; \
3710 }
3711
a0d0e21e
LW		 3712PP(pp_mkdir)
3713{
39644a26 3714 dSP; dTARGET;
5a211162 3715 int mode;
a0d0e21e
LW		 3716#ifndef HAS_MKDIR
3717 int oldumask;
3718#endif
df25ddba 3719 STRLEN len;
5c144d81 3720 const char *tmps;
df25ddba 3721 bool copy = FALSE;
5a211162
GS		 3722
3723 if (MAXARG > 1)
3724 mode = POPi;
3725 else
3726 mode = 0777;
3727
0c54f65b 3728 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3729
3730 TAINT_PROPER("mkdir");
3731#ifdef HAS_MKDIR
b8ffc8df 3732 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3733#else
3734 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3735 oldumask = PerlLIO_umask(0);
3736 PerlLIO_umask(oldumask);
3737 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3738#endif
df25ddba
JH		 3739 if (copy)
3740 Safefree(tmps);
a0d0e21e
LW		 3741 RETURN;
3742}
3743
3744PP(pp_rmdir)
3745{
39644a26 3746 dSP; dTARGET;
0c54f65b 3747 STRLEN len;
5c144d81 3748 const char *tmps;
0c54f65b 3749 bool copy = FALSE;
a0d0e21e 3750
0c54f65b 3751 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3752 TAINT_PROPER("rmdir");
3753#ifdef HAS_RMDIR
b8ffc8df 3754 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3755#else
0c54f65b 3756 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3757#endif
0c54f65b
RGS		 3758 if (copy)
3759 Safefree(tmps);
a0d0e21e
LW		 3760 RETURN;
3761}
3762
3763/* Directory calls. */
3764
3765PP(pp_open_dir)
3766{
a0d0e21e 3767#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3768 dSP;
10516c54 3769 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3770 GV *gv = (GV*)POPs;
3771 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3772
3773 if (!io)
3774 goto nope;
3775
3776 if (IoDIRP(io))
6ad3d225 3777 PerlDir_close(IoDIRP(io));
b8ffc8df 3778 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3779 goto nope;
3780
3781 RETPUSHYES;
3782nope:
3783 if (!errno)
93189314 3784 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3785 RETPUSHUNDEF;
3786#else
cea2e8a9 3787 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3788#endif
3789}
3790
3791PP(pp_readdir)
3792{
34b7f128
AMS		 3793#if !defined(Direntry_t) || !defined(HAS_READDIR)
3794 DIE(aTHX_ PL_no_dir_func, "readdir");
3795#else
fd8cd3a3 3796#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3797 Direntry_t *readdir (DIR *);
a0d0e21e 3798#endif
34b7f128
AMS		 3799 dSP;
3800
3801 SV *sv;
f54cb97a 3802 const I32 gimme = GIMME;
34b7f128 3803 GV *gv = (GV *)POPs;
a0d0e21e 3804 register Direntry_t *dp;
a0d0e21e
LW		 3805 register IO *io = GvIOn(gv);
3806
3807 if (!io || !IoDIRP(io))
3808 goto nope;
3809
34b7f128
AMS		 3810 do {
3811 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3812 if (!dp)
3813 break;
a0d0e21e 3814#ifdef DIRNAMLEN
34b7f128 3815 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3816#else
34b7f128 3817 sv = newSVpv(dp->d_name, 0);
fb73857a 3818#endif
3819#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3820 if (!(IoFLAGS(io) & IOf_UNTAINT))
3821 SvTAINTED_on(sv);
a0d0e21e 3822#endif
34b7f128 3823 XPUSHs(sv_2mortal(sv));
a0d0e21e 3824 }
34b7f128
AMS		 3825 while (gimme == G_ARRAY);
3826
3827 if (!dp && gimme != G_ARRAY)
3828 goto nope;
3829
a0d0e21e
LW		 3830 RETURN;
3831
3832nope:
3833 if (!errno)
93189314 3834 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3835 if (GIMME == G_ARRAY)
3836 RETURN;
3837 else
3838 RETPUSHUNDEF;
a0d0e21e
LW		 3839#endif
3840}
3841
3842PP(pp_telldir)
3843{
a0d0e21e 3844#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3845 dVAR; dSP; dTARGET;
968dcd91
JH		 3846 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3847 /* XXX netbsd still seemed to.
3848 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3849 --JHI 1999-Feb-02 */
3850# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3851 long telldir (DIR *);
dfe9444c 3852# endif
a0d0e21e
LW		 3853 GV *gv = (GV*)POPs;
3854 register IO *io = GvIOn(gv);
3855
3856 if (!io || !IoDIRP(io))
3857 goto nope;
3858
6ad3d225 3859 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3860 RETURN;
3861nope:
3862 if (!errno)
93189314 3863 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3864 RETPUSHUNDEF;
3865#else
cea2e8a9 3866 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3867#endif
3868}
3869
3870PP(pp_seekdir)
3871{
a0d0e21e 3872#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3873 dSP;
a0d0e21e
LW		 3874 long along = POPl;
3875 GV *gv = (GV*)POPs;
3876 register IO *io = GvIOn(gv);
3877
3878 if (!io || !IoDIRP(io))
3879 goto nope;
3880
6ad3d225 3881 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3882
3883 RETPUSHYES;
3884nope:
3885 if (!errno)
93189314 3886 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3887 RETPUSHUNDEF;
3888#else
cea2e8a9 3889 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3890#endif
3891}
3892
3893PP(pp_rewinddir)
3894{
a0d0e21e 3895#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3896 dSP;
a0d0e21e
LW		 3897 GV *gv = (GV*)POPs;
3898 register IO *io = GvIOn(gv);
3899
3900 if (!io || !IoDIRP(io))
3901 goto nope;
3902
6ad3d225 3903 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3904 RETPUSHYES;
3905nope:
3906 if (!errno)
93189314 3907 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3908 RETPUSHUNDEF;
3909#else
cea2e8a9 3910 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3911#endif
3912}
3913
3914PP(pp_closedir)
3915{
a0d0e21e 3916#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3917 dSP;
a0d0e21e
LW		 3918 GV *gv = (GV*)POPs;
3919 register IO *io = GvIOn(gv);
3920
3921 if (!io || !IoDIRP(io))
3922 goto nope;
3923
3924#ifdef VOID_CLOSEDIR
6ad3d225 3925 PerlDir_close(IoDIRP(io));
a0d0e21e 3926#else
6ad3d225 3927 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3928 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3929 goto nope;
748a9306 3930 }
a0d0e21e
LW		 3931#endif
3932 IoDIRP(io) = 0;
3933
3934 RETPUSHYES;
3935nope:
3936 if (!errno)
93189314 3937 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3938 RETPUSHUNDEF;
3939#else
cea2e8a9 3940 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3941#endif
3942}
3943
3944/* Process control. */
3945
3946PP(pp_fork)
3947{
44a8e56a 3948#ifdef HAS_FORK
39644a26 3949 dSP; dTARGET;
761237fe 3950 Pid_t childpid;
a0d0e21e
LW		 3951 GV *tmpgv;
3952
3953 EXTEND(SP, 1);
45bc9206 3954 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3955 childpid = PerlProc_fork();
a0d0e21e
LW		 3956 if (childpid < 0)
3957 RETSETUNDEF;
3958 if (!childpid) {
306196c3
MS		 3959 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3960 SvREADONLY_off(GvSV(tmpgv));
146174a9 3961 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3962 SvREADONLY_on(GvSV(tmpgv));
3963 }
4d76a344
RGS		 3964#ifdef THREADS_HAVE_PIDS
3965 PL_ppid = (IV)getppid();
3966#endif
ca0c25f6 3967#ifdef PERL_USES_PL_PIDSTATUS
3280af22 3968 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
ca0c25f6 3969#endif
a0d0e21e
LW		 3970 }
3971 PUSHi(childpid);
3972 RETURN;
3973#else
146174a9 3974# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3975 dSP; dTARGET;
146174a9
CB		 3976 Pid_t childpid;
3977
3978 EXTEND(SP, 1);
3979 PERL_FLUSHALL_FOR_CHILD;
3980 childpid = PerlProc_fork();
60fa28ff
GS		 3981 if (childpid == -1)
3982 RETSETUNDEF;
146174a9
CB		 3983 PUSHi(childpid);
3984 RETURN;
3985# else
0322a713 3986 DIE(aTHX_ PL_no_func, "fork");
146174a9 3987# endif
a0d0e21e
LW		 3988#endif
3989}
3990
3991PP(pp_wait)
3992{
301e8125 3993#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3994 dSP; dTARGET;
761237fe 3995 Pid_t childpid;
a0d0e21e 3996 int argflags;
a0d0e21e 3997
4ffa73a3
JH		 3998 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3999 childpid = wait4pid(-1, &argflags, 0);
4000 else {
4001 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4002 errno == EINTR) {
4003 PERL_ASYNC_CHECK();
4004 }
0a0ada86 4005 }
68a29c53
GS		 4006# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4007 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4008 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 4009# else
2fbb330f 4010 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 4011# endif
44a8e56a 4012 XPUSHi(childpid);
a0d0e21e
LW		 4013 RETURN;
4014#else
0322a713 4015 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4016#endif
4017}
4018
4019PP(pp_waitpid)
4020{
301e8125 4021#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4022 dSP; dTARGET;
2ec0bfb3
SG		 4023 Pid_t pid;
4024 Pid_t result;
a0d0e21e
LW		 4025 int optype;
4026 int argflags;
a0d0e21e 4027
a0d0e21e 4028 optype = POPi;
2ec0bfb3 4029 pid = TOPi;
4ffa73a3 4030 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4031 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4032 else {
2ec0bfb3 4033 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4034 errno == EINTR) {
4035 PERL_ASYNC_CHECK();
4036 }
0a0ada86 4037 }
68a29c53
GS		 4038# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4039 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4040 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4041# else
2fbb330f 4042 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4043# endif
2ec0bfb3 4044 SETi(result);
a0d0e21e
LW		 4045 RETURN;
4046#else
0322a713 4047 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4048#endif
4049}
4050
4051PP(pp_system)
4052{
39644a26 4053 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4054 I32 value;
76ffd3b9 4055 int result;
a0d0e21e 4056
bbd7eb8a
RD		 4057 if (PL_tainting) {
4058 TAINT_ENV();
4059 while (++MARK <= SP) {
10516c54 4060 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4061 if (PL_tainted)
bbd7eb8a
RD		 4062 break;
4063 }
4064 MARK = ORIGMARK;
5a445156 4065 TAINT_PROPER("system");
a0d0e21e 4066 }
45bc9206 4067 PERL_FLUSHALL_FOR_CHILD;
273b0206 4068#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4069 {
eb160463
GS		 4070 Pid_t childpid;
4071 int pp[2];
27da23d5 4072 I32 did_pipes = 0;
eb160463
GS		 4073
4074 if (PerlProc_pipe(pp) >= 0)
4075 did_pipes = 1;
4076 while ((childpid = PerlProc_fork()) == -1) {
4077 if (errno != EAGAIN) {
4078 value = -1;
4079 SP = ORIGMARK;
4080 PUSHi(value);
4081 if (did_pipes) {
4082 PerlLIO_close(pp[0]);
4083 PerlLIO_close(pp[1]);
4084 }
4085 RETURN;
4086 }
4087 sleep(5);
4088 }
4089 if (childpid > 0) {
4090 Sigsave_t ihand,qhand; /* place to save signals during system() */
4091 int status;
4092
4093 if (did_pipes)
4094 PerlLIO_close(pp[1]);
64ca3a65 4095#ifndef PERL_MICRO
8aad04aa
JH		 4096 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4097 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4098#endif
eb160463
GS		 4099 do {
4100 result = wait4pid(childpid, &status, 0);
4101 } while (result == -1 && errno == EINTR);
64ca3a65 4102#ifndef PERL_MICRO
eb160463
GS		 4103 (void)rsignal_restore(SIGINT, &ihand);
4104 (void)rsignal_restore(SIGQUIT, &qhand);
4105#endif
37038d91 4106 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4107 do_execfree(); /* free any memory child malloced on fork */
4108 SP = ORIGMARK;
4109 if (did_pipes) {
4110 int errkid;
4111 int n = 0, n1;
4112
4113 while (n < sizeof(int)) {
4114 n1 = PerlLIO_read(pp[0],
4115 (void*)(((char*)&errkid)+n),
4116 (sizeof(int)) - n);
4117 if (n1 <= 0)
4118 break;
4119 n += n1;
4120 }
4121 PerlLIO_close(pp[0]);
4122 if (n) { /* Error */
4123 if (n != sizeof(int))
4124 DIE(aTHX_ "panic: kid popen errno read");
4125 errno = errkid; /* Propagate errno from kid */
37038d91 4126 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4127 }
4128 }
4129 PUSHi(STATUS_CURRENT);
4130 RETURN;
4131 }
4132 if (did_pipes) {
4133 PerlLIO_close(pp[0]);
d5a9bfb0 4134#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4135 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4136#endif
eb160463 4137 }
e0a1f643
JH		 4138 if (PL_op->op_flags & OPf_STACKED) {
4139 SV *really = *++MARK;
4140 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4141 }
4142 else if (SP - MARK != 1)
4143 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4144 else {
8c074e2a 4145 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4146 }
4147 PerlProc__exit(-1);
d5a9bfb0 4148 }
c3293030 4149#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4150 PL_statusvalue = 0;
4151 result = 0;
911d147d 4152 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4153 SV *really = *++MARK;
a0fd4948 4154# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4155 value = (I32)do_aspawn(really, MARK, SP);
4156# else
c5be433b 4157 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4158# endif
a0d0e21e 4159 }
54725af6 4160 else if (SP - MARK != 1) {
a0fd4948 4161# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4162 value = (I32)do_aspawn(Nullsv, MARK, SP);
4163# else
c5be433b 4164 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4165# endif
4166 }
a0d0e21e 4167 else {
8c074e2a 4168 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4169 }
922b1888
GS		 4170 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4171 result = 1;
2fbb330f 4172 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4173 do_execfree();
4174 SP = ORIGMARK;
922b1888 4175 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4176#endif /* !FORK or VMS */
4177 RETURN;
4178}
4179
4180PP(pp_exec)
4181{
39644a26 4182 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4183 I32 value;
4184
bbd7eb8a
RD		 4185 if (PL_tainting) {
4186 TAINT_ENV();
4187 while (++MARK <= SP) {
10516c54 4188 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4189 if (PL_tainted)
bbd7eb8a
RD		 4190 break;
4191 }
4192 MARK = ORIGMARK;
5a445156 4193 TAINT_PROPER("exec");
bbd7eb8a 4194 }
45bc9206 4195 PERL_FLUSHALL_FOR_CHILD;
533c011a 4196 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4197 SV *really = *++MARK;
4198 value = (I32)do_aexec(really, MARK, SP);
4199 }
4200 else if (SP - MARK != 1)
4201#ifdef VMS
4202 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4203#else
092bebab
JH		 4204# ifdef __OPEN_VM
4205 {
c5be433b 4206 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4207 value = 0;
4208 }
4209# else
a0d0e21e 4210 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4211# endif
a0d0e21e
LW		 4212#endif
4213 else {
a0d0e21e 4214#ifdef VMS
8c074e2a 4215 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4216#else
092bebab 4217# ifdef __OPEN_VM
8c074e2a 4218 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4219 value = 0;
4220# else
8c074e2a 4221 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4222# endif
a0d0e21e
LW		 4223#endif
4224 }
146174a9 4225
a0d0e21e
LW		 4226 SP = ORIGMARK;
4227 PUSHi(value);
4228 RETURN;
4229}
4230
4231PP(pp_kill)
4232{
9cad6237 4233#ifdef HAS_KILL
39644a26 4234 dSP; dMARK; dTARGET;
a0d0e21e 4235 I32 value;
533c011a 4236 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4237 SP = MARK;
4238 PUSHi(value);
4239 RETURN;
4240#else
0322a713 4241 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4242#endif
4243}
4244
4245PP(pp_getppid)
4246{
4247#ifdef HAS_GETPPID
39644a26 4248 dSP; dTARGET;
4d76a344 4249# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4250 if (PL_ppid != 1 && getppid() == 1)
4251 /* maybe the parent process has died. Refresh ppid cache */
4252 PL_ppid = 1;
4d76a344
RGS		 4253 XPUSHi( PL_ppid );
4254# else
a0d0e21e 4255 XPUSHi( getppid() );
4d76a344 4256# endif
a0d0e21e
LW		 4257 RETURN;
4258#else
cea2e8a9 4259 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4260#endif
4261}
4262
4263PP(pp_getpgrp)
4264{
4265#ifdef HAS_GETPGRP
39644a26 4266 dSP; dTARGET;
d8a83dd3 4267 Pid_t pid;
9853a804 4268 Pid_t pgrp;
a0d0e21e
LW		 4269
4270 if (MAXARG < 1)
4271 pid = 0;
4272 else
4273 pid = SvIVx(POPs);
c3293030 4274#ifdef BSD_GETPGRP
9853a804 4275 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4276#else
146174a9 4277 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4278 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4279 pgrp = getpgrp();
a0d0e21e 4280#endif
9853a804 4281 XPUSHi(pgrp);
a0d0e21e
LW		 4282 RETURN;
4283#else
cea2e8a9 4284 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4285#endif
4286}
4287
4288PP(pp_setpgrp)
4289{
4290#ifdef HAS_SETPGRP
39644a26 4291 dSP; dTARGET;
d8a83dd3
JH		 4292 Pid_t pgrp;
4293 Pid_t pid;
a0d0e21e
LW		 4294 if (MAXARG < 2) {
4295 pgrp = 0;
4296 pid = 0;
4297 }
4298 else {
4299 pgrp = POPi;
4300 pid = TOPi;
4301 }
4302
4303 TAINT_PROPER("setpgrp");
c3293030
IZ		 4304#ifdef BSD_SETPGRP
4305 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4306#else
146174a9
CB		 4307 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4308 || (pid != 0 && pid != PerlProc_getpid()))
4309 {
4310 DIE(aTHX_ "setpgrp can't take arguments");
4311 }
a0d0e21e
LW		 4312 SETi( setpgrp() >= 0 );
4313#endif /* USE_BSDPGRP */
4314 RETURN;
4315#else
cea2e8a9 4316 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4317#endif
4318}
4319
4320PP(pp_getpriority)
4321{
a0d0e21e 4322#ifdef HAS_GETPRIORITY
9cad6237 4323 dSP; dTARGET;
d05c1ba0
JH		 4324 int who = POPi;
4325 int which = TOPi;
a0d0e21e
LW		 4326 SETi( getpriority(which, who) );
4327 RETURN;
4328#else
cea2e8a9 4329 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4330#endif
4331}
4332
4333PP(pp_setpriority)
4334{
a0d0e21e 4335#ifdef HAS_SETPRIORITY
9cad6237 4336 dSP; dTARGET;
d05c1ba0
JH		 4337 int niceval = POPi;
4338 int who = POPi;
4339 int which = TOPi;
a0d0e21e
LW		 4340 TAINT_PROPER("setpriority");
4341 SETi( setpriority(which, who, niceval) >= 0 );
4342 RETURN;
4343#else
cea2e8a9 4344 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4345#endif
4346}
4347
4348/* Time calls. */
4349
4350PP(pp_time)
4351{
39644a26 4352 dSP; dTARGET;
cbdc8872 4353#ifdef BIG_TIME
4354 XPUSHn( time(Null(Time_t*)) );
4355#else
a0d0e21e 4356 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4357#endif
a0d0e21e
LW		 4358 RETURN;
4359}
4360
a0d0e21e
LW		 4361PP(pp_tms)
4362{
9cad6237 4363#ifdef HAS_TIMES
39644a26 4364 dSP;
a0d0e21e 4365 EXTEND(SP, 4);
a0d0e21e 4366#ifndef VMS
3280af22 4367 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4368#else
6b88bc9c 4369 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4370 /* struct tms, though same data */
4371 /* is returned. */
a0d0e21e
LW		 4372#endif
4373
5311654c 4374 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4375 if (GIMME == G_ARRAY) {
5311654c
JH		 4376 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4377 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4378 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4379 }
4380 RETURN;
9cad6237 4381#else
2f42fcb0
JH		 4382# ifdef PERL_MICRO
4383 dSP;
4384 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4385 EXTEND(SP, 4);
4386 if (GIMME == G_ARRAY) {
4387 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4388 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4389 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4390 }
4391 RETURN;
4392# else
9cad6237 4393 DIE(aTHX_ "times not implemented");
2f42fcb0 4394# endif
55497cff 4395#endif /* HAS_TIMES */
a0d0e21e
LW		 4396}
4397
a4323dee 4398#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4399static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4400{
4401 auto time_t T;
4402 auto struct tm *P;
4403
4404 /* No workarounds in the valid range */
4405 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4406 return (localtime (tp));
4407
4408 /* This edge case is to workaround the undefined behaviour, where the
4409 * TIMEZONE makes the time go beyond the defined range.
4410 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4411 * If there is a negative offset in TZ, like MET-1METDST, some broken
4412 * implementations of localtime () (like AIX 5.2) barf with bogus
4413 * return values:
4414 * 0x7fffffff gmtime 2038-01-19 03:14:07
4415 * 0x7fffffff localtime 1901-12-13 21:45:51
4416 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4417 * 0x3c19137f gmtime 2001-12-13 20:45:51
4418 * 0x3c19137f localtime 2001-12-13 21:45:51
4419 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4420 * Given that legal timezones are typically between GMT-12 and GMT+12
4421 * we turn back the clock 23 hours before calling the localtime
4422 * function, and add those to the return value. This will never cause
3574fba9 4423 * day wrapping problems, since the edge case is Tue Jan *19*
a4323dee
MB		 4424 */
4425 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4426 P = localtime (&T);
4427 P->tm_hour += 23;
4428 if (P->tm_hour >= 24) {
4429 P->tm_hour -= 24;
3574fba9
CW		 4430 P->tm_mday++; /* 18 -> 19 */
4431 P->tm_wday++; /* Mon -> Tue */
4432 P->tm_yday++; /* 18 -> 19 */
a4323dee
MB		 4433 }
4434 return (P);
4435} /* S_my_localtime */
4436#endif
4437
a0d0e21e
LW		 4438PP(pp_gmtime)
4439{
39644a26 4440 dSP;
a0d0e21e 4441 Time_t when;
bfed75c6 4442 const struct tm *tmbuf;
27da23d5
JH		 4443 static const char * const dayname[] =
4444 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4445 static const char * const monname[] =
4446 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4447 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4448
4449 if (MAXARG < 1)
4450 (void)time(&when);
4451 else
cbdc8872 4452#ifdef BIG_TIME
4453 when = (Time_t)SvNVx(POPs);
4454#else
a0d0e21e 4455 when = (Time_t)SvIVx(POPs);
cbdc8872 4456#endif
a0d0e21e 4457
533c011a 4458 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4459#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4460 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4461#else
a0d0e21e 4462 tmbuf = localtime(&when);
a4323dee 4463#endif
a0d0e21e
LW		 4464 else
4465 tmbuf = gmtime(&when);
4466
a0d0e21e 4467 if (GIMME != G_ARRAY) {
46fc3d4c 4468 SV *tsv;
9a5ff6d9
AB		 4469 EXTEND(SP, 1);
4470 EXTEND_MORTAL(1);
a0d0e21e
LW		 4471 if (!tmbuf)
4472 RETPUSHUNDEF;
be28567c 4473 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4474 dayname[tmbuf->tm_wday],
4475 monname[tmbuf->tm_mon],
be28567c
GS		 4476 tmbuf->tm_mday,
4477 tmbuf->tm_hour,
4478 tmbuf->tm_min,
4479 tmbuf->tm_sec,
4480 tmbuf->tm_year + 1900);
46fc3d4c 4481 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4482 }
4483 else if (tmbuf) {
9a5ff6d9
AB		 4484 EXTEND(SP, 9);
4485 EXTEND_MORTAL(9);
4486 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4487 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4488 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4489 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4490 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4491 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4492 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4493 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4494 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4495 }
4496 RETURN;
4497}
4498
4499PP(pp_alarm)
4500{
9cad6237 4501#ifdef HAS_ALARM
39644a26 4502 dSP; dTARGET;
a0d0e21e 4503 int anum;
a0d0e21e
LW		 4504 anum = POPi;
4505 anum = alarm((unsigned int)anum);
4506 EXTEND(SP, 1);
4507 if (anum < 0)
4508 RETPUSHUNDEF;
c6419e06 4509 PUSHi(anum);
a0d0e21e
LW		 4510 RETURN;
4511#else
0322a713 4512 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4513#endif
4514}
4515
4516PP(pp_sleep)
4517{
39644a26 4518 dSP; dTARGET;
a0d0e21e
LW		 4519 I32 duration;
4520 Time_t lasttime;
4521 Time_t when;
4522
4523 (void)time(&lasttime);
4524 if (MAXARG < 1)
76e3520e 4525 PerlProc_pause();
a0d0e21e
LW		 4526 else {
4527 duration = POPi;
76e3520e 4528 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4529 }
4530 (void)time(&when);
4531 XPUSHi(when - lasttime);
4532 RETURN;
4533}
4534
4535/* Shared memory. */
4536
a0d0e21e
LW		 4537PP(pp_shmwrite)
4538{
4539#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4540 dSP; dMARK; dTARGET;
533c011a 4541 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4542 SP = MARK;
4543 PUSHi(value);
4544 RETURN;
4545#else
cea2e8a9 4546 return pp_semget();
a0d0e21e
LW		 4547#endif
4548}
4549
4550/* Message passing. */
4551
a0d0e21e
LW		 4552PP(pp_msgsnd)
4553{
4554#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4555 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4556 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4557 SP = MARK;
4558 PUSHi(value);
4559 RETURN;
4560#else
cea2e8a9 4561 return pp_semget();
a0d0e21e
LW		 4562#endif
4563}
4564
4565PP(pp_msgrcv)
4566{
4567#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4568 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4569 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4570 SP = MARK;
4571 PUSHi(value);
4572 RETURN;
4573#else
cea2e8a9 4574 return pp_semget();
a0d0e21e
LW		 4575#endif
4576}
4577
4578/* Semaphores. */
4579
4580PP(pp_semget)
4581{
4582#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4583 dSP; dMARK; dTARGET;
533c011a 4584 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4585 SP = MARK;
4586 if (anum == -1)
4587 RETPUSHUNDEF;
4588 PUSHi(anum);
4589 RETURN;
4590#else
cea2e8a9 4591 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4592#endif
4593}
4594
4595PP(pp_semctl)
4596{
4597#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4598 dSP; dMARK; dTARGET;
533c011a 4599 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4600 SP = MARK;
4601 if (anum == -1)
4602 RETSETUNDEF;
4603 if (anum != 0) {
4604 PUSHi(anum);
4605 }
4606 else {
8903cb82 4607 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4608 }
4609 RETURN;
4610#else
cea2e8a9 4611 return pp_semget();
a0d0e21e
LW		 4612#endif
4613}
4614
4615PP(pp_semop)
4616{
4617#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4618 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4619 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4620 SP = MARK;
4621 PUSHi(value);
4622 RETURN;
4623#else
cea2e8a9 4624 return pp_semget();
a0d0e21e
LW		 4625#endif
4626}
4627
4628/* Get system info. */
4629
a0d0e21e
LW		 4630PP(pp_ghostent)
4631{
693762b4 4632#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4633 dSP;
533c011a 4634 I32 which = PL_op->op_type;
a0d0e21e
LW		 4635 register char **elem;
4636 register SV *sv;
dc45a647 4637#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4638 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4639 struct hostent *gethostbyname(Netdb_name_t);
4640 struct hostent *gethostent(void);
a0d0e21e
LW		 4641#endif
4642 struct hostent *hent;
4643 unsigned long len;
4644
4645 EXTEND(SP, 10);
edd309b7 4646 if (which == OP_GHBYNAME) {
dc45a647 4647#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4648 char* name = POPpbytex;
4649 hent = PerlSock_gethostbyname(name);
dc45a647 4650#else
cea2e8a9 4651 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4652#endif
edd309b7 4653 }
a0d0e21e 4654 else if (which == OP_GHBYADDR) {
dc45a647 4655#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4656 int addrtype = POPi;
748a9306 4657 SV *addrsv = POPs;
a0d0e21e 4658 STRLEN addrlen;
595ae481 4659 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4660
4599a1de 4661 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4662#else
cea2e8a9 4663 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4664#endif
a0d0e21e
LW		 4665 }
4666 else
4667#ifdef HAS_GETHOSTENT
6ad3d225 4668 hent = PerlSock_gethostent();
a0d0e21e 4669#else
cea2e8a9 4670 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4671#endif
4672
4673#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4674 if (!hent) {
4675#ifdef USE_REENTRANT_API
4676# ifdef USE_GETHOSTENT_ERRNO
4677 h_errno = PL_reentrant_buffer->_gethostent_errno;
4678# endif
4679#endif
37038d91 4680 STATUS_UNIX_SET(h_errno);
10bc17b6 4681 }
a0d0e21e
LW		 4682#endif
4683
4684 if (GIMME != G_ARRAY) {
4685 PUSHs(sv = sv_newmortal());
4686 if (hent) {
4687 if (which == OP_GHBYNAME) {
fd0af264 4688 if (hent->h_addr)
4689 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4690 }
4691 else
4692 sv_setpv(sv, (char*)hent->h_name);
4693 }
4694 RETURN;
4695 }
4696
4697 if (hent) {
3280af22 4698 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4699 sv_setpv(sv, (char*)hent->h_name);
3280af22 4700 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4701 for (elem = hent->h_aliases; elem && *elem; elem++) {
4702 sv_catpv(sv, *elem);
4703 if (elem[1])
4704 sv_catpvn(sv, " ", 1);
4705 }
3280af22 4706 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4707 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4708 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4709 len = hent->h_length;
1e422769 4710 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4711#ifdef h_addr
4712 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4713 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4714 sv_setpvn(sv, *elem, len);
4715 }
4716#else
6b88bc9c 4717 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4718 if (hent->h_addr)
4719 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4720#endif /* h_addr */
4721 }
4722 RETURN;
4723#else
cea2e8a9 4724 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4725#endif
4726}
4727
a0d0e21e
LW		 4728PP(pp_gnetent)
4729{
693762b4 4730#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4731 dSP;
533c011a 4732 I32 which = PL_op->op_type;
a0d0e21e
LW		 4733 register char **elem;
4734 register SV *sv;
dc45a647 4735#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4736 struct netent *getnetbyaddr(Netdb_net_t, int);
4737 struct netent *getnetbyname(Netdb_name_t);
4738 struct netent *getnetent(void);
8ac85365 4739#endif
a0d0e21e
LW		 4740 struct netent *nent;
4741
edd309b7 4742 if (which == OP_GNBYNAME){
dc45a647 4743#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4744 char *name = POPpbytex;
4745 nent = PerlSock_getnetbyname(name);
dc45a647 4746#else
cea2e8a9 4747 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4748#endif
edd309b7 4749 }
a0d0e21e 4750 else if (which == OP_GNBYADDR) {
dc45a647 4751#ifdef HAS_GETNETBYADDR
a0d0e21e 4752 int addrtype = POPi;
3bb7c1b4 4753 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4754 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4755#else
cea2e8a9 4756 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4757#endif
a0d0e21e
LW		 4758 }
4759 else
dc45a647 4760#ifdef HAS_GETNETENT
76e3520e 4761 nent = PerlSock_getnetent();
dc45a647 4762#else
cea2e8a9 4763 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4764#endif
a0d0e21e 4765
10bc17b6
JH		 4766#ifdef HOST_NOT_FOUND
4767 if (!nent) {
4768#ifdef USE_REENTRANT_API
4769# ifdef USE_GETNETENT_ERRNO
4770 h_errno = PL_reentrant_buffer->_getnetent_errno;
4771# endif
4772#endif
37038d91 4773 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4774 }
4775#endif
4776
a0d0e21e
LW		 4777 EXTEND(SP, 4);
4778 if (GIMME != G_ARRAY) {
4779 PUSHs(sv = sv_newmortal());
4780 if (nent) {
4781 if (which == OP_GNBYNAME)
1e422769 4782 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4783 else
4784 sv_setpv(sv, nent->n_name);
4785 }
4786 RETURN;
4787 }
4788
4789 if (nent) {
3280af22 4790 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4791 sv_setpv(sv, nent->n_name);
3280af22 4792 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4793 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4794 sv_catpv(sv, *elem);
4795 if (elem[1])
4796 sv_catpvn(sv, " ", 1);
4797 }
3280af22 4798 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4799 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4800 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4801 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4802 }
4803
4804 RETURN;
4805#else
cea2e8a9 4806 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4807#endif
4808}
4809
a0d0e21e
LW		 4810PP(pp_gprotoent)
4811{
693762b4 4812#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4813 dSP;
533c011a 4814 I32 which = PL_op->op_type;
a0d0e21e 4815 register char **elem;
301e8125 4816 register SV *sv;
dc45a647 4817#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4818 struct protoent *getprotobyname(Netdb_name_t);
4819 struct protoent *getprotobynumber(int);
4820 struct protoent *getprotoent(void);
8ac85365 4821#endif
a0d0e21e
LW		 4822 struct protoent *pent;
4823
edd309b7 4824 if (which == OP_GPBYNAME) {
e5c9fcd0 4825#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4826 char* name = POPpbytex;
4827 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4828#else
cea2e8a9 4829 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4830#endif
edd309b7
JH		 4831 }
4832 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4833#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4834 int number = POPi;
4835 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4836#else
edd309b7 4837 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4838#endif
edd309b7 4839 }
a0d0e21e 4840 else
e5c9fcd0 4841#ifdef HAS_GETPROTOENT
6ad3d225 4842 pent = PerlSock_getprotoent();
e5c9fcd0 4843#else
cea2e8a9 4844 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4845#endif
a0d0e21e
LW		 4846
4847 EXTEND(SP, 3);
4848 if (GIMME != G_ARRAY) {
4849 PUSHs(sv = sv_newmortal());
4850 if (pent) {
4851 if (which == OP_GPBYNAME)
1e422769 4852 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4853 else
4854 sv_setpv(sv, pent->p_name);
4855 }
4856 RETURN;
4857 }
4858
4859 if (pent) {
3280af22 4860 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4861 sv_setpv(sv, pent->p_name);
3280af22 4862 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4863 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4864 sv_catpv(sv, *elem);
4865 if (elem[1])
4866 sv_catpvn(sv, " ", 1);
4867 }
3280af22 4868 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4869 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4870 }
4871
4872 RETURN;
4873#else
cea2e8a9 4874 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4875#endif
4876}
4877
a0d0e21e
LW		 4878PP(pp_gservent)
4879{
693762b4 4880#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4881 dSP;
533c011a 4882 I32 which = PL_op->op_type;
a0d0e21e
LW		 4883 register char **elem;
4884 register SV *sv;
dc45a647 4885#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4886 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4887 struct servent *getservbyport(int, Netdb_name_t);
4888 struct servent *getservent(void);
8ac85365 4889#endif
a0d0e21e
LW		 4890 struct servent *sent;
4891
4892 if (which == OP_GSBYNAME) {
dc45a647 4893#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4894 char *proto = POPpbytex;
4895 char *name = POPpbytex;
a0d0e21e
LW		 4896
4897 if (proto && !*proto)
4898 proto = Nullch;
4899
6ad3d225 4900 sent = PerlSock_getservbyname(name, proto);
dc45a647 4901#else
cea2e8a9 4902 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4903#endif
a0d0e21e
LW		 4904 }
4905 else if (which == OP_GSBYPORT) {
dc45a647 4906#ifdef HAS_GETSERVBYPORT
42e0c139 4907 char *proto = POPpbytex;
eb160463 4908 unsigned short port = (unsigned short)POPu;
a0d0e21e 4909
2b872cca
SR		 4910 if (proto && !*proto)
4911 proto = Nullch;
4912
36477c24 4913#ifdef HAS_HTONS
6ad3d225 4914 port = PerlSock_htons(port);
36477c24 4915#endif
6ad3d225 4916 sent = PerlSock_getservbyport(port, proto);
dc45a647 4917#else
cea2e8a9 4918 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4919#endif
a0d0e21e
LW		 4920 }
4921 else
e5c9fcd0 4922#ifdef HAS_GETSERVENT
6ad3d225 4923 sent = PerlSock_getservent();
e5c9fcd0 4924#else
cea2e8a9 4925 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4926#endif
a0d0e21e
LW		 4927
4928 EXTEND(SP, 4);
4929 if (GIMME != G_ARRAY) {
4930 PUSHs(sv = sv_newmortal());
4931 if (sent) {
4932 if (which == OP_GSBYNAME) {
4933#ifdef HAS_NTOHS
6ad3d225 4934 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4935#else
1e422769 4936 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4937#endif
4938 }
4939 else
4940 sv_setpv(sv, sent->s_name);
4941 }
4942 RETURN;
4943 }
4944
4945 if (sent) {
3280af22 4946 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4947 sv_setpv(sv, sent->s_name);
3280af22 4948 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4949 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4950 sv_catpv(sv, *elem);
4951 if (elem[1])
4952 sv_catpvn(sv, " ", 1);
4953 }
3280af22 4954 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4955#ifdef HAS_NTOHS
76e3520e 4956 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4957#else
1e422769 4958 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 4959#endif
3280af22 4960 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4961 sv_setpv(sv, sent->s_proto);
4962 }
4963
4964 RETURN;
4965#else
cea2e8a9 4966 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 4967#endif
4968}
4969
4970PP(pp_shostent)
4971{
693762b4 4972#ifdef HAS_SETHOSTENT
9cad6237 4973 dSP;
76e3520e 4974 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 4975 RETSETYES;
4976#else
cea2e8a9 4977 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 4978#endif
4979}
4980
4981PP(pp_snetent)
4982{
693762b4 4983#ifdef HAS_SETNETENT
9cad6237 4984 dSP;
76e3520e 4985 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 4986 RETSETYES;
4987#else
cea2e8a9 4988 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 4989#endif
4990}
4991
4992PP(pp_sprotoent)
4993{
693762b4 4994#ifdef HAS_SETPROTOENT
9cad6237 4995 dSP;
76e3520e 4996 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 4997 RETSETYES;
4998#else
cea2e8a9 4999 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5000#endif
5001}
5002
5003PP(pp_sservent)
5004{
693762b4 5005#ifdef HAS_SETSERVENT
9cad6237 5006 dSP;
76e3520e 5007 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5008 RETSETYES;
5009#else
cea2e8a9 5010 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5011#endif
5012}
5013
5014PP(pp_ehostent)
5015{
693762b4 5016#ifdef HAS_ENDHOSTENT
9cad6237 5017 dSP;
76e3520e 5018 PerlSock_endhostent();
924508f0 5019 EXTEND(SP,1);
a0d0e21e
LW		 5020 RETPUSHYES;
5021#else
cea2e8a9 5022 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5023#endif
5024}
5025
5026PP(pp_enetent)
5027{
693762b4 5028#ifdef HAS_ENDNETENT
9cad6237 5029 dSP;
76e3520e 5030 PerlSock_endnetent();
924508f0 5031 EXTEND(SP,1);
a0d0e21e
LW		 5032 RETPUSHYES;
5033#else
cea2e8a9 5034 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5035#endif
5036}
5037
5038PP(pp_eprotoent)
5039{
693762b4 5040#ifdef HAS_ENDPROTOENT
9cad6237 5041 dSP;
76e3520e 5042 PerlSock_endprotoent();
924508f0 5043 EXTEND(SP,1);
a0d0e21e
LW		 5044 RETPUSHYES;
5045#else
cea2e8a9 5046 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5047#endif
5048}
5049
5050PP(pp_eservent)
5051{
693762b4 5052#ifdef HAS_ENDSERVENT
9cad6237 5053 dSP;
76e3520e 5054 PerlSock_endservent();
924508f0 5055 EXTEND(SP,1);
a0d0e21e
LW		 5056 RETPUSHYES;
5057#else
cea2e8a9 5058 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5059#endif
5060}
5061
a0d0e21e
LW		 5062PP(pp_gpwent)
5063{
0994c4d0 5064#ifdef HAS_PASSWD
9cad6237 5065 dSP;
533c011a 5066 I32 which = PL_op->op_type;
a0d0e21e 5067 register SV *sv;
e3aefe8d 5068 struct passwd *pwent = NULL;
301e8125 5069 /*
bcf53261
JH		 5070 * We currently support only the SysV getsp* shadow password interface.
5071 * The interface is declared in <shadow.h> and often one needs to link
5072 * with -lsecurity or some such.
5073 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5074 * (and SCO?)
5075 *
5076 * AIX getpwnam() is clever enough to return the encrypted password
5077 * only if the caller (euid?) is root.
5078 *
e549f1c5 5079 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5080 * seem to contain more than one interface for accessing the shadow
5081 * password databases, possibly for compatibility reasons.
3813c136 5082 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5083 * are much more complicated, but also very similar to each other.
5084 *
5085 * <sys/types.h>
5086 * <sys/security.h>
5087 * <prot.h>
5088 * struct pr_passwd *getprpw*();
5089 * The password is in
3813c136
JH		 5090 * char getprpw*(...).ufld.fd_encrypt[]
5091 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5092 *
5093 * <sys/types.h>
5094 * <sys/security.h>
5095 * <prot.h>
5096 * struct es_passwd *getespw*();
5097 * The password is in
5098 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5099 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5100 *
e1920a95 5101 * <userpw.h> (AIX)
e549f1c5
JH		 5102 * struct userpw *getuserpw();
5103 * The password is in
5104 * char *(getuserpw(...)).spw_upw_passwd
5105 * (but the de facto standard getpwnam() should work okay)
5106 *
3813c136 5107 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5108 *
5109 * In HP-UX for getprpw*() the manual page claims that one should include
5110 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5111 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5112 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5113 *
5114 * Note that <sys/security.h> is already probed for, but currently
5115 * it is only included in special cases.
301e8125 5116 *
bcf53261
JH		 5117 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5118 * be preferred interface, even though also the getprpw*() interface
5119 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5120 * One also needs to call set_auth_parameters() in main() before
5121 * doing anything else, whether one is using getespw*() or getprpw*().
5122 *
5123 * Note that accessing the shadow databases can be magnitudes
5124 * slower than accessing the standard databases.
bcf53261
JH		 5125 *
5126 * --jhi
5127 */
a0d0e21e 5128
9e5f0c48
JH		 5129# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5130 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5131 * the pw_comment is left uninitialized. */
5132 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5133# endif
5134
e3aefe8d
JH		 5135 switch (which) {
5136 case OP_GPWNAM:
edd309b7
JH		 5137 {
5138 char* name = POPpbytex;
5139 pwent = getpwnam(name);
5140 }
5141 break;
e3aefe8d 5142 case OP_GPWUID:
edd309b7
JH		 5143 {
5144 Uid_t uid = POPi;
5145 pwent = getpwuid(uid);
5146 }
e3aefe8d
JH		 5147 break;
5148 case OP_GPWENT:
1883634f 5149# ifdef HAS_GETPWENT
e3aefe8d 5150 pwent = getpwent();
faea9016
IRC		 5151#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5152 if (pwent) pwent = getpwnam(pwent->pw_name);
5153#endif
1883634f 5154# else
a45d1c96 5155 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5156# endif
e3aefe8d
JH		 5157 break;
5158 }
8c0bfa08 5159
a0d0e21e
LW		 5160 EXTEND(SP, 10);
5161 if (GIMME != G_ARRAY) {
5162 PUSHs(sv = sv_newmortal());
5163 if (pwent) {
5164 if (which == OP_GPWNAM)
1883634f 5165# if Uid_t_sign <= 0
1e422769 5166 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5167# else
23dcd6c8 5168 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5169# endif
a0d0e21e
LW		 5170 else
5171 sv_setpv(sv, pwent->pw_name);
5172 }
5173 RETURN;
5174 }
5175
5176 if (pwent) {
3280af22 5177 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5178 sv_setpv(sv, pwent->pw_name);
6ee623d5 5179
3280af22 5180 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5181 SvPOK_off(sv);
5182 /* If we have getspnam(), we try to dig up the shadow
5183 * password. If we are underprivileged, the shadow
5184 * interface will set the errno to EACCES or similar,
5185 * and return a null pointer. If this happens, we will
5186 * use the dummy password (usually "*" or "x") from the
5187 * standard password database.
5188 *
5189 * In theory we could skip the shadow call completely
5190 * if euid != 0 but in practice we cannot know which
5191 * security measures are guarding the shadow databases
5192 * on a random platform.
5193 *
5194 * Resist the urge to use additional shadow interfaces.
5195 * Divert the urge to writing an extension instead.
5196 *
5197 * --jhi */
e549f1c5
JH		 5198 /* Some AIX setups falsely(?) detect some getspnam(), which
5199 * has a different API than the Solaris/IRIX one. */
5200# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5201 {
5202 struct spwd *spwent;
5203 int saverrno; /* Save and restore errno so that
5204 * underprivileged attempts seem
5205 * to have never made the unsccessful
5206 * attempt to retrieve the shadow password. */
5207
5208 saverrno = errno;
5209 spwent = getspnam(pwent->pw_name);
5210 errno = saverrno;
5211 if (spwent && spwent->sp_pwdp)
5212 sv_setpv(sv, spwent->sp_pwdp);
5213 }
f1066039 5214# endif
e020c87d 5215# ifdef PWPASSWD
3813c136
JH		 5216 if (!SvPOK(sv)) /* Use the standard password, then. */
5217 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5218# endif
3813c136 5219
1883634f 5220# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5221 /* passwd is tainted because user himself can diddle with it.
5222 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5223 SvTAINTED_on(sv);
1883634f 5224# endif
6ee623d5 5225
3280af22 5226 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5227# if Uid_t_sign <= 0
1e422769 5228 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5229# else
23dcd6c8 5230 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5231# endif
6ee623d5 5232
3280af22 5233 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5234# if Uid_t_sign <= 0
1e422769 5235 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5236# else
23dcd6c8 5237 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5238# endif
3813c136
JH		 5239 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5240 * because of the poor interface of the Perl getpw*(),
5241 * not because there's some standard/convention saying so.
5242 * A better interface would have been to return a hash,
5243 * but we are accursed by our history, alas. --jhi. */
3280af22 5244 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5245# ifdef PWCHANGE
1e422769 5246 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5247# else
1883634f
JH		 5248# ifdef PWQUOTA
5249 sv_setiv(sv, (IV)pwent->pw_quota);
5250# else
a1757be1 5251# ifdef PWAGE
a0d0e21e 5252 sv_setpv(sv, pwent->pw_age);
a1757be1 5253# endif
6ee623d5
GS		 5254# endif
5255# endif
6ee623d5 5256
3813c136
JH		 5257 /* pw_class and pw_comment are mutually exclusive--.
5258 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5259 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5260# ifdef PWCLASS
a0d0e21e 5261 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5262# else
5263# ifdef PWCOMMENT
a0d0e21e 5264 sv_setpv(sv, pwent->pw_comment);
1883634f 5265# endif
6ee623d5 5266# endif
6ee623d5 5267
3280af22 5268 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5269# ifdef PWGECOS
a0d0e21e 5270 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5271# endif
5272# ifndef INCOMPLETE_TAINTS
d2719217 5273 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5274 SvTAINTED_on(sv);
1883634f 5275# endif
6ee623d5 5276
3280af22 5277 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5278 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5279
3280af22 5280 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5281 sv_setpv(sv, pwent->pw_shell);
1883634f 5282# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5283 /* pw_shell is tainted because user himself can diddle with it. */
5284 SvTAINTED_on(sv);
1883634f 5285# endif
6ee623d5 5286
1883634f 5287# ifdef PWEXPIRE
6b88bc9c 5288 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5289 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5290# endif
a0d0e21e
LW		 5291 }
5292 RETURN;
5293#else
af51a00e 5294 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5295#endif
5296}
5297
5298PP(pp_spwent)
5299{
d493b042 5300#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5301 dSP;
a0d0e21e
LW		 5302 setpwent();
5303 RETPUSHYES;
5304#else
cea2e8a9 5305 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5306#endif
5307}
5308
5309PP(pp_epwent)
5310{
28e8609d 5311#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5312 dSP;
a0d0e21e
LW		 5313 endpwent();
5314 RETPUSHYES;
5315#else
cea2e8a9 5316 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5317#endif
5318}
5319
a0d0e21e
LW		 5320PP(pp_ggrent)
5321{
0994c4d0 5322#ifdef HAS_GROUP
9cad6237 5323 dSP;
533c011a 5324 I32 which = PL_op->op_type;
a0d0e21e
LW		 5325 register char **elem;
5326 register SV *sv;
5327 struct group *grent;
5328
edd309b7
JH		 5329 if (which == OP_GGRNAM) {
5330 char* name = POPpbytex;
5331 grent = (struct group *)getgrnam(name);
5332 }
5333 else if (which == OP_GGRGID) {
5334 Gid_t gid = POPi;
5335 grent = (struct group *)getgrgid(gid);
5336 }
a0d0e21e 5337 else
0994c4d0 5338#ifdef HAS_GETGRENT
a0d0e21e 5339 grent = (struct group *)getgrent();
0994c4d0
JH		 5340#else
5341 DIE(aTHX_ PL_no_func, "getgrent");
5342#endif
a0d0e21e
LW		 5343
5344 EXTEND(SP, 4);
5345 if (GIMME != G_ARRAY) {
5346 PUSHs(sv = sv_newmortal());
5347 if (grent) {
5348 if (which == OP_GGRNAM)
1e422769 5349 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5350 else
5351 sv_setpv(sv, grent->gr_name);
5352 }
5353 RETURN;
5354 }
5355
5356 if (grent) {
3280af22 5357 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5358 sv_setpv(sv, grent->gr_name);
28e8609d 5359
3280af22 5360 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5361#ifdef GRPASSWD
a0d0e21e 5362 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5363#endif
5364
3280af22 5365 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5366 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5367
5b56e7c5 5368#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5369 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5370 /* In UNICOS/mk (_CRAYMPP) the multithreading
5371 * versions (getgrnam_r, getgrgid_r)
5372 * seem to return an illegal pointer
5373 * as the group members list, gr_mem.
5374 * getgrent() doesn't even have a _r version
5375 * but the gr_mem is poisonous anyway.
5376 * So yes, you cannot get the list of group
5377 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5378 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5379 sv_catpv(sv, *elem);
5380 if (elem[1])
5381 sv_catpvn(sv, " ", 1);
5382 }
3d7e8424 5383#endif
a0d0e21e
LW		 5384 }
5385
5386 RETURN;
5387#else
af51a00e 5388 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5389#endif
5390}
5391
5392PP(pp_sgrent)
5393{
28e8609d 5394#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5395 dSP;
a0d0e21e
LW		 5396 setgrent();
5397 RETPUSHYES;
5398#else
cea2e8a9 5399 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5400#endif
5401}
5402
5403PP(pp_egrent)
5404{
28e8609d 5405#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5406 dSP;
a0d0e21e
LW		 5407 endgrent();
5408 RETPUSHYES;
5409#else
cea2e8a9 5410 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5411#endif
5412}
5413
5414PP(pp_getlogin)
5415{
a0d0e21e 5416#ifdef HAS_GETLOGIN
9cad6237 5417 dSP; dTARGET;
a0d0e21e
LW		 5418 char *tmps;
5419 EXTEND(SP, 1);
76e3520e 5420 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5421 RETPUSHUNDEF;
5422 PUSHp(tmps, strlen(tmps));
5423 RETURN;
5424#else
cea2e8a9 5425 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5426#endif
5427}
5428
5429/* Miscellaneous. */
5430
5431PP(pp_syscall)
5432{
d2719217 5433#ifdef HAS_SYSCALL
39644a26 5434 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5435 register I32 items = SP - MARK;
5436 unsigned long a[20];
5437 register I32 i = 0;
5438 I32 retval = -1;
5439
3280af22 5440 if (PL_tainting) {
a0d0e21e 5441 while (++MARK <= SP) {
bbce6d69 5442 if (SvTAINTED(*MARK)) {
5443 TAINT;
5444 break;
5445 }
a0d0e21e
LW		 5446 }
5447 MARK = ORIGMARK;
5448 TAINT_PROPER("syscall");
5449 }
5450
5451 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5452 * or where sizeof(long) != sizeof(char*). But such machines will
5453 * not likely have syscall implemented either, so who cares?
5454 */
5455 while (++MARK <= SP) {
5456 if (SvNIOK(*MARK) || !i)
5457 a[i++] = SvIV(*MARK);
3280af22 5458 else if (*MARK == &PL_sv_undef)
748a9306 5459 a[i++] = 0;
301e8125 5460 else
8b6b16e7 5461 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5462 if (i > 15)
5463 break;
5464 }
5465 switch (items) {
5466 default:
cea2e8a9 5467 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5468 case 0:
cea2e8a9 5469 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5470 case 1:
5471 retval = syscall(a[0]);
5472 break;
5473 case 2:
5474 retval = syscall(a[0],a[1]);
5475 break;
5476 case 3:
5477 retval = syscall(a[0],a[1],a[2]);
5478 break;
5479 case 4:
5480 retval = syscall(a[0],a[1],a[2],a[3]);
5481 break;
5482 case 5:
5483 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5484 break;
5485 case 6:
5486 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5487 break;
5488 case 7:
5489 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5490 break;
5491 case 8:
5492 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5493 break;
5494#ifdef atarist
5495 case 9:
5496 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5497 break;
5498 case 10:
5499 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5500 break;
5501 case 11:
5502 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5503 a[10]);
5504 break;
5505 case 12:
5506 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5507 a[10],a[11]);
5508 break;
5509 case 13:
5510 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5511 a[10],a[11],a[12]);
5512 break;
5513 case 14:
5514 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5515 a[10],a[11],a[12],a[13]);
5516 break;
5517#endif /* atarist */
5518 }
5519 SP = ORIGMARK;
5520 PUSHi(retval);
5521 RETURN;
5522#else
cea2e8a9 5523 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5524#endif
5525}
5526
ff68c719 5527#ifdef FCNTL_EMULATE_FLOCK
301e8125 5528
ff68c719 5529/* XXX Emulate flock() with fcntl().
5530 What's really needed is a good file locking module.
5531*/
5532
cea2e8a9
GS		 5533static int
5534fcntl_emulate_flock(int fd, int operation)
ff68c719 5535{
5536 struct flock flock;
301e8125 5537
ff68c719 5538 switch (operation & ~LOCK_NB) {
5539 case LOCK_SH:
5540 flock.l_type = F_RDLCK;
5541 break;
5542 case LOCK_EX:
5543 flock.l_type = F_WRLCK;
5544 break;
5545 case LOCK_UN:
5546 flock.l_type = F_UNLCK;
5547 break;
5548 default:
5549 errno = EINVAL;
5550 return -1;
5551 }
5552 flock.l_whence = SEEK_SET;
d9b3e12d 5553 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5554
ff68c719 5555 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5556}
5557
5558#endif /* FCNTL_EMULATE_FLOCK */
5559
5560#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5561
5562/* XXX Emulate flock() with lockf(). This is just to increase
5563 portability of scripts. The calls are not completely
5564 interchangeable. What's really needed is a good file
5565 locking module.
5566*/
5567
76c32331 5568/* The lockf() constants might have been defined in <unistd.h>.
5569 Unfortunately, <unistd.h> causes troubles on some mixed
5570 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5571
5572 Further, the lockf() constants aren't POSIX, so they might not be
5573 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5574 just stick in the SVID values and be done with it. Sigh.
5575*/
5576
5577# ifndef F_ULOCK
5578# define F_ULOCK 0 /* Unlock a previously locked region */
5579# endif
5580# ifndef F_LOCK
5581# define F_LOCK 1 /* Lock a region for exclusive use */
5582# endif
5583# ifndef F_TLOCK
5584# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5585# endif
5586# ifndef F_TEST
5587# define F_TEST 3 /* Test a region for other processes locks */
5588# endif
5589
cea2e8a9
GS		 5590static int
5591lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5592{
5593 int i;
84902520
TB		 5594 int save_errno;
5595 Off_t pos;
5596
5597 /* flock locks entire file so for lockf we need to do the same */
5598 save_errno = errno;
6ad3d225 5599 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5600 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5601 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5602 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5603 errno = save_errno;
5604
16d20bd9
AD		 5605 switch (operation) {
5606
5607 /* LOCK_SH - get a shared lock */
5608 case LOCK_SH:
5609 /* LOCK_EX - get an exclusive lock */
5610 case LOCK_EX:
5611 i = lockf (fd, F_LOCK, 0);
5612 break;
5613
5614 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5615 case LOCK_SH|LOCK_NB:
5616 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5617 case LOCK_EX|LOCK_NB:
5618 i = lockf (fd, F_TLOCK, 0);
5619 if (i == -1)
5620 if ((errno == EAGAIN) || (errno == EACCES))
5621 errno = EWOULDBLOCK;
5622 break;
5623
ff68c719 5624 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5625 case LOCK_UN:
ff68c719 5626 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5627 i = lockf (fd, F_ULOCK, 0);
5628 break;
5629
5630 /* Default - can't decipher operation */
5631 default:
5632 i = -1;
5633 errno = EINVAL;
5634 break;
5635 }
84902520
TB		 5636
5637 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5638 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5639
16d20bd9
AD		 5640 return (i);
5641}
ff68c719 5642
5643#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5644
5645/*
5646 * Local variables:
5647 * c-indentation-style: bsd
5648 * c-basic-offset: 4
5649 * indent-tabs-mode: t
5650 * End:
5651 *
37442d52
RGS		 5652 * ex: set ts=8 sts=4 sw=4 noet:
5653 */
Unnamed repository; edit this file 'description' to name the repository.