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The PERL_EFF_ACCESS_[RWX]_OK macros are all defined as triples, so
[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
d7558cad 203#undef PERL_EFF_ACCESS
5ff3f7a4 204
a4323dee
MB		 205/* AIX 5.2 and below use mktime for localtime, and defines the edge case
206 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
207 * available in the 32bit environment, which could warrant Configure
208 * checks in the future.
209 */
210#ifdef _AIX
211#define LOCALTIME_EDGECASE_BROKEN
212#endif
213
5ff3f7a4
GS		 214/* F_OK unused: if stat() cannot find it... */
215
d7558cad 216#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 217 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
d7558cad 218# define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
5ff3f7a4
GS		 219#endif
220
d7558cad 221#if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
3813c136 222# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 223# include <sys/security.h>
224# endif
c955f117
JH		 225# ifdef ACC_SELF
226 /* HP SecureWare */
d7558cad 227# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
c955f117
JH		 228# else
229 /* SCO */
d7558cad 230# define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
c955f117 231# endif
5ff3f7a4
GS		 232#endif
233
d7558cad 234#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 235 /* AIX */
d7558cad 236# define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
5ff3f7a4
GS		 237#endif
238
d7558cad
NC		 239
240#if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
327c3667
GS		 241 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
242 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 243/* The Hard Way. */
327c3667 244STATIC int
7f4774ae 245S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 246{
c4420975
AL		 247 const Uid_t ruid = getuid();
248 const Uid_t euid = geteuid();
249 const Gid_t rgid = getgid();
250 const Gid_t egid = getegid();
5ff3f7a4
GS		 251 int res;
252
146174a9 253 LOCK_CRED_MUTEX;
5ff3f7a4 254#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 255 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 256#else
257#ifdef HAS_SETREUID
258 if (setreuid(euid, ruid))
259#else
260#ifdef HAS_SETRESUID
261 if (setresuid(euid, ruid, (Uid_t)-1))
262#endif
263#endif
cea2e8a9 264 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 265#endif
266
267#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 268 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 269#else
270#ifdef HAS_SETREGID
271 if (setregid(egid, rgid))
272#else
273#ifdef HAS_SETRESGID
274 if (setresgid(egid, rgid, (Gid_t)-1))
275#endif
276#endif
cea2e8a9 277 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 278#endif
279
280 res = access(path, mode);
281
282#ifdef HAS_SETREUID
283 if (setreuid(ruid, euid))
284#else
285#ifdef HAS_SETRESUID
286 if (setresuid(ruid, euid, (Uid_t)-1))
287#endif
288#endif
cea2e8a9 289 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 290
291#ifdef HAS_SETREGID
292 if (setregid(rgid, egid))
293#else
294#ifdef HAS_SETRESGID
295 if (setresgid(rgid, egid, (Gid_t)-1))
296#endif
297#endif
cea2e8a9 298 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 299 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 300
301 return res;
302}
d7558cad 303# define PERL_EFF_ACCESS(p,f) (emulate_eaccess((p), (f)))
5ff3f7a4
GS		 304#endif
305
d7558cad
NC		 306#if defined(PERL_EFF_ACCESS)
307# define PERL_EFF_ACCESS_R_OK(p) (PERL_EFF_ACCESS((p), R_OK))
308# define PERL_EFF_ACCESS_W_OK(p) (PERL_EFF_ACCESS((p), W_OK))
309# define PERL_EFF_ACCESS_X_OK(p) (PERL_EFF_ACCESS((p), X_OK))
310#else
76ffd3b9
IZ		 311/* With it or without it: anyway you get a warning: either that
312 it is unused, or it is declared static and never defined.
313 */
327c3667 314STATIC int
7f4774ae 315S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 316{
5d7488b2
AL		 317 (void)path;
318 (void)mode;
cea2e8a9 319 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 320 /*NOTREACHED*/
321 return -1;
322}
323#endif
324
a0d0e21e
LW		 325PP(pp_backtick)
326{
39644a26 327 dSP; dTARGET;
760ac839 328 PerlIO *fp;
1b6737cc 329 const char * const tmps = POPpconstx;
f54cb97a 330 const I32 gimme = GIMME_V;
e1ec3a88 331 const char *mode = "r";
54310121 332
a0d0e21e 333 TAINT_PROPER("``");
16fe6d59
GS		 334 if (PL_op->op_private & OPpOPEN_IN_RAW)
335 mode = "rb";
336 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
337 mode = "rt";
2fbb330f 338 fp = PerlProc_popen(tmps, mode);
a0d0e21e 339 if (fp) {
e1ec3a88 340 const char *type = NULL;
ac27b0f5 341 if (PL_curcop->cop_io) {
e62f0680 342 type = SvPV_nolen_const(PL_curcop->cop_io);
ac27b0f5 343 }
ac27b0f5
NIS		 344 if (type && *type)
345 PerlIO_apply_layers(aTHX_ fp,mode,type);
346
54310121 347 if (gimme == G_VOID) {
96827780
MB		 348 char tmpbuf[256];
349 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 350 ;
351 }
352 else if (gimme == G_SCALAR) {
75af1a9c
DM		 353 ENTER;
354 SAVESPTR(PL_rs);
fa326138 355 PL_rs = &PL_sv_undef;
c69006e4 356 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e 357 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
a0d0e21e 358 ;
75af1a9c 359 LEAVE;
a0d0e21e 360 XPUSHs(TARG);
aa689395 361 SvTAINTED_on(TARG);
a0d0e21e
LW		 362 }
363 else {
a0d0e21e 364 for (;;) {
1b6737cc 365 SV * const sv = NEWSV(56, 79);
a0d0e21e
LW		 366 if (sv_gets(sv, fp, 0) == Nullch) {
367 SvREFCNT_dec(sv);
368 break;
369 }
370 XPUSHs(sv_2mortal(sv));
371 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 372 SvPV_shrink_to_cur(sv);
a0d0e21e 373 }
aa689395 374 SvTAINTED_on(sv);
a0d0e21e
LW		 375 }
376 }
2fbb330f 377 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
aa689395 378 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 379 }
380 else {
37038d91 381 STATUS_NATIVE_CHILD_SET(-1);
54310121 382 if (gimme == G_SCALAR)
a0d0e21e
LW		 383 RETPUSHUNDEF;
384 }
385
386 RETURN;
387}
388
389PP(pp_glob)
390{
27da23d5 391 dVAR;
a0d0e21e 392 OP *result;
f5284f61
IZ		 393 tryAMAGICunTARGET(iter, -1);
394
71686f12
GS		 395 /* Note that we only ever get here if File::Glob fails to load
396 * without at the same time croaking, for some reason, or if
397 * perl was built with PERL_EXTERNAL_GLOB */
398
a0d0e21e 399 ENTER;
a0d0e21e 400
c90c0ff4 401#ifndef VMS
3280af22 402 if (PL_tainting) {
7bac28a0 403 /*
404 * The external globbing program may use things we can't control,
405 * so for security reasons we must assume the worst.
406 */
407 TAINT;
22c35a8c 408 taint_proper(PL_no_security, "glob");
7bac28a0 409 }
c90c0ff4 410#endif /* !VMS */
7bac28a0 411
3280af22
NIS		 412 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
413 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 414
3280af22 415 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 416 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 417#ifndef DOSISH
418#ifndef CSH
6b88bc9c 419 *SvPVX(PL_rs) = '\n';
a0d0e21e 420#endif /* !CSH */
55497cff 421#endif /* !DOSISH */
c07a80fd 422
a0d0e21e
LW		 423 result = do_readline();
424 LEAVE;
425 return result;
426}
427
a0d0e21e
LW		 428PP(pp_rcatline)
429{
146174a9 430 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 431 return do_readline();
432}
433
434PP(pp_warn)
435{
39644a26 436 dSP; dMARK;
06bf62c7 437 SV *tmpsv;
e1ec3a88 438 const char *tmps;
06bf62c7 439 STRLEN len;
a0d0e21e
LW		 440 if (SP - MARK != 1) {
441 dTARGET;
3280af22 442 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 443 tmpsv = TARG;
a0d0e21e
LW		 444 SP = MARK + 1;
445 }
446 else {
06bf62c7 447 tmpsv = TOPs;
a0d0e21e 448 }
e62f0680 449 tmps = SvPV_const(tmpsv, len);
7b102d90 450 if ((!tmps || !len) && PL_errgv) {
1b6737cc 451 SV * const error = ERRSV;
862a34c6 452 SvUPGRADE(error, SVt_PV);
4e6ea2c3
GS		 453 if (SvPOK(error) && SvCUR(error))
454 sv_catpv(error, "\t...caught");
06bf62c7 455 tmpsv = error;
e62f0680 456 tmps = SvPV_const(tmpsv, len);
a0d0e21e 457 }
06bf62c7
GS		 458 if (!tmps || !len)
459 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
460
cb50131a 461 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 462 RETSETYES;
463}
464
465PP(pp_die)
466{
39644a26 467 dSP; dMARK;
e1ec3a88 468 const char *tmps;
06bf62c7
GS		 469 SV *tmpsv;
470 STRLEN len;
471 bool multiarg = 0;
96e176bf
CL		 472#ifdef VMS
473 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
474#endif
a0d0e21e
LW		 475 if (SP - MARK != 1) {
476 dTARGET;
3280af22 477 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 478 tmpsv = TARG;
5c144d81 479 tmps = SvPV_const(tmpsv, len);
06bf62c7 480 multiarg = 1;
a0d0e21e
LW		 481 SP = MARK + 1;
482 }
483 else {
4e6ea2c3 484 tmpsv = TOPs;
5c144d81 485 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
a0d0e21e 486 }
06bf62c7 487 if (!tmps || !len) {
4e6ea2c3 488 SV *error = ERRSV;
862a34c6 489 SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 490 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
491 if (!multiarg)
4e6ea2c3 492 SvSetSV(error,tmpsv);
06bf62c7 493 else if (sv_isobject(error)) {
05423cc9
GS		 494 HV *stash = SvSTASH(SvRV(error));
495 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
496 if (gv) {
146174a9 497 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 498 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 499 EXTEND(SP, 3);
500 PUSHMARK(SP);
501 PUSHs(error);
502 PUSHs(file);
503 PUSHs(line);
504 PUTBACK;
864dbfa3
GS		 505 call_sv((SV*)GvCV(gv),
506 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 507 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 508 }
509 }
c3bdd826 510 DIE(aTHX_ Nullch);
4e6ea2c3
GS		 511 }
512 else {
513 if (SvPOK(error) && SvCUR(error))
514 sv_catpv(error, "\t...propagated");
06bf62c7 515 tmpsv = error;
dc8d642c
DM		 516 if (SvOK(tmpsv))
517 tmps = SvPV_const(tmpsv, len);
518 else
519 tmps = Nullch;
4e6ea2c3 520 }
a0d0e21e 521 }
06bf62c7
GS		 522 if (!tmps || !len)
523 tmpsv = sv_2mortal(newSVpvn("Died", 4));
524
cb50131a 525 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 526}
527
528/* I/O. */
529
530PP(pp_open)
531{
27da23d5 532 dVAR; dSP;
a567e93b
NIS		 533 dMARK; dORIGMARK;
534 dTARGET;
a0d0e21e 535 SV *sv;
5b468f54 536 IO *io;
5c144d81 537 const char *tmps;
a0d0e21e 538 STRLEN len;
a567e93b 539 bool ok;
a0d0e21e 540
c4420975
AL		 541 GV * const gv = (GV *)*++MARK;
542
5f05dabc 543 if (!isGV(gv))
cea2e8a9 544 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 545 if ((io = GvIOp(gv)))
36477c24 546 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 547
c4420975
AL		 548 if (io) {
549 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
550 if (mg) {
551 /* Method's args are same as ours ... */
552 /* ... except handle is replaced by the object */
553 *MARK-- = SvTIED_obj((SV*)io, mg);
554 PUSHMARK(MARK);
555 PUTBACK;
556 ENTER;
557 call_method("OPEN", G_SCALAR);
558 LEAVE;
559 SPAGAIN;
560 RETURN;
561 }
4592e6ca
NIS		 562 }
563
a567e93b
NIS		 564 if (MARK < SP) {
565 sv = *++MARK;
566 }
567 else {
35a08ec7 568 sv = GvSVn(gv);
a567e93b
NIS		 569 }
570
5c144d81 571 tmps = SvPV_const(sv, len);
2fbb330f 572 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 573 SP = ORIGMARK;
574 if (ok)
3280af22
NIS		 575 PUSHi( (I32)PL_forkprocess );
576 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 577 PUSHi(0);
578 else
579 RETPUSHUNDEF;
580 RETURN;
581}
582
583PP(pp_close)
584{
27da23d5 585 dVAR; dSP;
5b468f54 586 IO *io;
1d603a67 587 MAGIC *mg;
c4420975 588 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
1d603a67 589
5b468f54
AMS		 590 if (gv && (io = GvIO(gv))
591 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
592 {
1d603a67 593 PUSHMARK(SP);
5b468f54 594 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 595 PUTBACK;
596 ENTER;
864dbfa3 597 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 598 LEAVE;
599 SPAGAIN;
600 RETURN;
601 }
a0d0e21e 602 EXTEND(SP, 1);
54310121 603 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 604 RETURN;
605}
606
607PP(pp_pipe_op)
608{
a0d0e21e 609#ifdef HAS_PIPE
9cad6237 610 dSP;
a0d0e21e
LW		 611 register IO *rstio;
612 register IO *wstio;
613 int fd[2];
614
c4420975
AL		 615 GV * const wgv = (GV*)POPs;
616 GV * const rgv = (GV*)POPs;
a0d0e21e
LW		 617
618 if (!rgv || !wgv)
619 goto badexit;
620
4633a7c4 621 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 622 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 623 rstio = GvIOn(rgv);
624 wstio = GvIOn(wgv);
625
626 if (IoIFP(rstio))
627 do_close(rgv, FALSE);
628 if (IoIFP(wstio))
629 do_close(wgv, FALSE);
630
6ad3d225 631 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 632 goto badexit;
633
460c8493
IZ		 634 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
635 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 636 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 637 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 638 IoTYPE(rstio) = IoTYPE_RDONLY;
639 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 640
641 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 642 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 643 else PerlLIO_close(fd[0]);
760ac839 644 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 645 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 646 goto badexit;
647 }
4771b018
GS		 648#if defined(HAS_FCNTL) && defined(F_SETFD)
649 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
650 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
651#endif
a0d0e21e
LW		 652 RETPUSHYES;
653
654badexit:
655 RETPUSHUNDEF;
656#else
cea2e8a9 657 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 658#endif
659}
660
661PP(pp_fileno)
662{
27da23d5 663 dVAR; dSP; dTARGET;
a0d0e21e
LW		 664 GV *gv;
665 IO *io;
760ac839 666 PerlIO *fp;
4592e6ca
NIS		 667 MAGIC *mg;
668
a0d0e21e
LW		 669 if (MAXARG < 1)
670 RETPUSHUNDEF;
671 gv = (GV*)POPs;
4592e6ca 672
5b468f54
AMS		 673 if (gv && (io = GvIO(gv))
674 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
675 {
4592e6ca 676 PUSHMARK(SP);
5b468f54 677 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 678 PUTBACK;
679 ENTER;
864dbfa3 680 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 681 LEAVE;
682 SPAGAIN;
683 RETURN;
684 }
685
c289d2f7
JH		 686 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
687 /* Can't do this because people seem to do things like
688 defined(fileno($foo)) to check whether $foo is a valid fh.
689 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
690 report_evil_fh(gv, io, PL_op->op_type);
691 */
a0d0e21e 692 RETPUSHUNDEF;
c289d2f7
JH		 693 }
694
760ac839 695 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 696 RETURN;
697}
698
699PP(pp_umask)
700{
27da23d5 701 dSP;
d7e492a4 702#ifdef HAS_UMASK
27da23d5 703 dTARGET;
761237fe 704 Mode_t anum;
a0d0e21e 705
a0d0e21e 706 if (MAXARG < 1) {
6ad3d225
GS		 707 anum = PerlLIO_umask(0);
708 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 709 }
710 else
6ad3d225 711 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 712 TAINT_PROPER("umask");
713 XPUSHi(anum);
714#else
a0288114 715 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 716 * Otherwise it's harmless and more useful to just return undef
717 * since 'group' and 'other' concepts probably don't exist here. */
718 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 719 DIE(aTHX_ "umask not implemented");
6b88bc9c 720 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 721#endif
722 RETURN;
723}
724
725PP(pp_binmode)
726{
27da23d5 727 dVAR; dSP;
a0d0e21e
LW		 728 GV *gv;
729 IO *io;
760ac839 730 PerlIO *fp;
4592e6ca 731 MAGIC *mg;
16fe6d59 732 SV *discp = Nullsv;
a0d0e21e
LW		 733
734 if (MAXARG < 1)
735 RETPUSHUNDEF;
60382766 736 if (MAXARG > 1) {
16fe6d59 737 discp = POPs;
60382766 738 }
a0d0e21e 739
301e8125 740 gv = (GV*)POPs;
4592e6ca 741
5b468f54
AMS		 742 if (gv && (io = GvIO(gv))
743 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
744 {
4592e6ca 745 PUSHMARK(SP);
5b468f54 746 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 747 if (discp)
748 XPUSHs(discp);
4592e6ca
NIS		 749 PUTBACK;
750 ENTER;
864dbfa3 751 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 752 LEAVE;
753 SPAGAIN;
754 RETURN;
755 }
a0d0e21e
LW		 756
757 EXTEND(SP, 1);
50f846a7 758 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 759 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
760 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 761 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 762 RETPUSHUNDEF;
763 }
a0d0e21e 764
40d98b49 765 PUTBACK;
60382766 766 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 767 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 768 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
769 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
770 mode_from_discipline(discp),
e62f0680 771 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 772 SPAGAIN;
773 RETPUSHUNDEF;
774 }
775 }
40d98b49 776 SPAGAIN;
a0d0e21e 777 RETPUSHYES;
40d98b49
JH		 778 }
779 else {
780 SPAGAIN;
a0d0e21e 781 RETPUSHUNDEF;
40d98b49 782 }
a0d0e21e
LW		 783}
784
785PP(pp_tie)
786{
27da23d5 787 dVAR; dSP; dMARK;
a0d0e21e
LW		 788 HV* stash;
789 GV *gv;
a0d0e21e 790 SV *sv;
1df70142 791 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 792 const char *methname;
14befaf4 793 int how = PERL_MAGIC_tied;
e336de0d 794 U32 items;
c4420975 795 SV *varsv = *++MARK;
a0d0e21e 796
6b05c17a
NIS		 797 switch(SvTYPE(varsv)) {
798 case SVt_PVHV:
799 methname = "TIEHASH";
bfcb3514 800 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 801 break;
802 case SVt_PVAV:
803 methname = "TIEARRAY";
804 break;
805 case SVt_PVGV:
7fb37951
AMS		 806#ifdef GV_UNIQUE_CHECK
807 if (GvUNIQUE((GV*)varsv)) {
808 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 809 }
810#endif
6b05c17a 811 methname = "TIEHANDLE";
14befaf4 812 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 813 /* For tied filehandles, we apply tiedscalar magic to the IO
814 slot of the GP rather than the GV itself. AMS 20010812 */
815 if (!GvIOp(varsv))
816 GvIOp(varsv) = newIO();
817 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 818 break;
819 default:
820 methname = "TIESCALAR";
14befaf4 821 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 822 break;
823 }
e336de0d
GS		 824 items = SP - MARK++;
825 if (sv_isobject(*MARK)) {
6b05c17a 826 ENTER;
e788e7d3 827 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 828 PUSHMARK(SP);
eb160463 829 EXTEND(SP,(I32)items);
e336de0d
GS		 830 while (items--)
831 PUSHs(*MARK++);
832 PUTBACK;
864dbfa3 833 call_method(methname, G_SCALAR);
301e8125 834 }
6b05c17a 835 else {
864dbfa3 836 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 837 * perhaps to get different error message ?
838 */
e336de0d 839 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 840 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
842 methname, *MARK);
6b05c17a
NIS		 843 }
844 ENTER;
e788e7d3 845 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 846 PUSHMARK(SP);
eb160463 847 EXTEND(SP,(I32)items);
e336de0d
GS		 848 while (items--)
849 PUSHs(*MARK++);
850 PUTBACK;
864dbfa3 851 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 852 }
a0d0e21e
LW		 853 SPAGAIN;
854
855 sv = TOPs;
d3acc0f7 856 POPSTACK;
a0d0e21e 857 if (sv_isobject(sv)) {
33c27489 858 sv_unmagic(varsv, how);
ae21d580 859 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 860 if (varsv == SvRV(sv) &&
d87ebaca
YST		 861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 863 Perl_croak(aTHX_
864 "Self-ties of arrays and hashes are not supported");
d87ebaca 865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 866 }
867 LEAVE;
3280af22 868 SP = PL_stack_base + markoff;
a0d0e21e
LW		 869 PUSHs(sv);
870 RETURN;
871}
872
873PP(pp_untie)
874{
27da23d5 875 dVAR; dSP;
5b468f54 876 MAGIC *mg;
33c27489 877 SV *sv = POPs;
1df70142 878 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 879 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 880
5b468f54
AMS		 881 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
882 RETPUSHYES;
883
65eba18f 884 if ((mg = SvTIED_mg(sv, how))) {
1b6737cc 885 SV * const obj = SvRV(SvTIED_obj(sv, mg));
a29a5827 886 CV *cv = NULL;
fa2b88e0 887 if (obj) {
c4420975
AL		 888 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
889 if (gv && isGV(gv) && (cv = GvCV(gv))) {
fa2b88e0
JS		 890 PUSHMARK(SP);
891 XPUSHs(SvTIED_obj((SV*)gv, mg));
892 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
893 PUTBACK;
894 ENTER;
895 call_sv((SV *)cv, G_VOID);
896 LEAVE;
897 SPAGAIN;
898 }
041457d9 899 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
9014280d 900 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 901 "untie attempted while %"UVuf" inner references still exist",
902 (UV)SvREFCNT(obj) - 1 ) ;
c4420975 903 }
cbdc8872 904 }
905 }
38193a09 906 sv_unmagic(sv, how) ;
55497cff 907 RETPUSHYES;
a0d0e21e
LW		 908}
909
c07a80fd 910PP(pp_tied)
911{
39644a26 912 dSP;
1b6737cc 913 const MAGIC *mg;
33c27489 914 SV *sv = POPs;
1df70142 915 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 916 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 917
918 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
919 RETPUSHUNDEF;
c07a80fd 920
155aba94 921 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 922 SV *osv = SvTIED_obj(sv, mg);
923 if (osv == mg->mg_obj)
924 osv = sv_mortalcopy(osv);
925 PUSHs(osv);
926 RETURN;
c07a80fd 927 }
c07a80fd 928 RETPUSHUNDEF;
929}
930
a0d0e21e
LW		 931PP(pp_dbmopen)
932{
27da23d5 933 dVAR; dSP;
a0d0e21e
LW		 934 dPOPPOPssrl;
935 HV* stash;
936 GV *gv;
a0d0e21e 937
1b6737cc 938 HV * const hv = (HV*)POPs;
c4420975 939 SV * const sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e 940
a0d0e21e
LW		 941 sv_setpv(sv, "AnyDBM_File");
942 stash = gv_stashsv(sv, FALSE);
8ebc5c01 943 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 944 PUTBACK;
864dbfa3 945 require_pv("AnyDBM_File.pm");
a0d0e21e 946 SPAGAIN;
8ebc5c01 947 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 948 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 949 }
950
57d3b86d 951 ENTER;
924508f0 952 PUSHMARK(SP);
6b05c17a 953
924508f0 954 EXTEND(SP, 5);
a0d0e21e
LW		 955 PUSHs(sv);
956 PUSHs(left);
957 if (SvIV(right))
b448e4fe 958 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 959 else
b448e4fe 960 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 961 PUSHs(right);
57d3b86d 962 PUTBACK;
864dbfa3 963 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 964 SPAGAIN;
965
966 if (!sv_isobject(TOPs)) {
924508f0
GS		 967 SP--;
968 PUSHMARK(SP);
a0d0e21e
LW		 969 PUSHs(sv);
970 PUSHs(left);
b448e4fe 971 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 972 PUSHs(right);
a0d0e21e 973 PUTBACK;
864dbfa3 974 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 975 SPAGAIN;
976 }
977
6b05c17a 978 if (sv_isobject(TOPs)) {
14befaf4
DM		 979 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
980 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 981 }
a0d0e21e
LW		 982 LEAVE;
983 RETURN;
984}
985
a0d0e21e
LW		 986PP(pp_sselect)
987{
a0d0e21e 988#ifdef HAS_SELECT
9cad6237 989 dSP; dTARGET;
a0d0e21e
LW		 990 register I32 i;
991 register I32 j;
992 register char *s;
993 register SV *sv;
65202027 994 NV value;
a0d0e21e
LW		 995 I32 maxlen = 0;
996 I32 nfound;
997 struct timeval timebuf;
998 struct timeval *tbuf = &timebuf;
999 I32 growsize;
1000 char *fd_sets[4];
1001#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1002 I32 masksize;
1003 I32 offset;
1004 I32 k;
1005
1006# if BYTEORDER & 0xf0000
1007# define ORDERBYTE (0x88888888 - BYTEORDER)
1008# else
1009# define ORDERBYTE (0x4444 - BYTEORDER)
1010# endif
1011
1012#endif
1013
1014 SP -= 4;
1015 for (i = 1; i <= 3; i++) {
c4420975 1016 SV * const sv = SP[i];
15547071
GA		 1017 if (!SvOK(sv))
1018 continue;
1019 if (SvREADONLY(sv)) {
729c079f
NC		 1020 if (SvIsCOW(sv))
1021 sv_force_normal_flags(sv, 0);
15547071 1022 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
729c079f
NC		 1023 DIE(aTHX_ PL_no_modify);
1024 }
4ef2275c
GA		 1025 if (!SvPOK(sv)) {
1026 if (ckWARN(WARN_MISC))
1027 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1028 SvPV_force_nolen(sv); /* force string conversion */
1029 }
729c079f 1030 j = SvCUR(sv);
a0d0e21e
LW		 1031 if (maxlen < j)
1032 maxlen = j;
1033 }
1034
5ff3f7a4 1035/* little endians can use vecs directly */
e366b469 1036#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1037# ifdef NFDBITS
a0d0e21e 1038
5ff3f7a4
GS		 1039# ifndef NBBY
1040# define NBBY 8
1041# endif
a0d0e21e
LW		 1042
1043 masksize = NFDBITS / NBBY;
5ff3f7a4 1044# else
a0d0e21e 1045 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1046# endif
a0d0e21e
LW		 1047 Zero(&fd_sets[0], 4, char*);
1048#endif
1049
ad517f75
MHM		 1050# if SELECT_MIN_BITS == 1
1051 growsize = sizeof(fd_set);
1052# else
1053# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1054# undef SELECT_MIN_BITS
1055# define SELECT_MIN_BITS __FD_SETSIZE
1056# endif
e366b469
PG		 1057 /* If SELECT_MIN_BITS is greater than one we most probably will want
1058 * to align the sizes with SELECT_MIN_BITS/8 because for example
1059 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1060 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1061 * on (sets/tests/clears bits) is 32 bits. */
1062 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1063# endif
1064
a0d0e21e
LW		 1065 sv = SP[4];
1066 if (SvOK(sv)) {
1067 value = SvNV(sv);
1068 if (value < 0.0)
1069 value = 0.0;
1070 timebuf.tv_sec = (long)value;
65202027 1071 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1072 timebuf.tv_usec = (long)(value * 1000000.0);
1073 }
1074 else
1075 tbuf = Null(struct timeval*);
1076
1077 for (i = 1; i <= 3; i++) {
1078 sv = SP[i];
15547071 1079 if (!SvOK(sv) || SvCUR(sv) == 0) {
a0d0e21e
LW		 1080 fd_sets[i] = 0;
1081 continue;
1082 }
4ef2275c 1083 assert(SvPOK(sv));
a0d0e21e
LW		 1084 j = SvLEN(sv);
1085 if (j < growsize) {
1086 Sv_Grow(sv, growsize);
a0d0e21e 1087 }
c07a80fd 1088 j = SvCUR(sv);
1089 s = SvPVX(sv) + j;
1090 while (++j <= growsize) {
1091 *s++ = '\0';
1092 }
1093
a0d0e21e
LW		 1094#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 s = SvPVX(sv);
a02a5408 1096 Newx(fd_sets[i], growsize, char);
a0d0e21e
LW		 1097 for (offset = 0; offset < growsize; offset += masksize) {
1098 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1099 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1100 }
1101#else
1102 fd_sets[i] = SvPVX(sv);
1103#endif
1104 }
1105
dc4c69d9
JH		 1106#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1107 /* Can't make just the (void*) conditional because that would be
1108 * cpp #if within cpp macro, and not all compilers like that. */
1109 nfound = PerlSock_select(
1110 maxlen * 8,
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 (void*) tbuf); /* Workaround for compiler bug. */
1115#else
6ad3d225 1116 nfound = PerlSock_select(
a0d0e21e
LW		 1117 maxlen * 8,
1118 (Select_fd_set_t) fd_sets[1],
1119 (Select_fd_set_t) fd_sets[2],
1120 (Select_fd_set_t) fd_sets[3],
1121 tbuf);
dc4c69d9 1122#endif
a0d0e21e
LW		 1123 for (i = 1; i <= 3; i++) {
1124 if (fd_sets[i]) {
1125 sv = SP[i];
1126#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1127 s = SvPVX(sv);
1128 for (offset = 0; offset < growsize; offset += masksize) {
1129 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1130 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1131 }
1132 Safefree(fd_sets[i]);
1133#endif
1134 SvSETMAGIC(sv);
1135 }
1136 }
1137
4189264e 1138 PUSHi(nfound);
a0d0e21e 1139 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1140 value = (NV)(timebuf.tv_sec) +
1141 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1142 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1143 sv_setnv(sv, value);
1144 }
1145 RETURN;
1146#else
cea2e8a9 1147 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1148#endif
1149}
1150
4633a7c4 1151void
864dbfa3 1152Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1153{
1154 if (gv)
1155 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1156 if (PL_defoutgv)
1157 SvREFCNT_dec(PL_defoutgv);
1158 PL_defoutgv = gv;
4633a7c4
LW		 1159}
1160
a0d0e21e
LW		 1161PP(pp_select)
1162{
39644a26 1163 dSP; dTARGET;
1df70142 1164 GV *egv;
4633a7c4
LW		 1165 HV *hv;
1166
1df70142 1167 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1168
3280af22 1169 egv = GvEGV(PL_defoutgv);
4633a7c4 1170 if (!egv)
3280af22 1171 egv = PL_defoutgv;
4633a7c4
LW		 1172 hv = GvSTASH(egv);
1173 if (! hv)
3280af22 1174 XPUSHs(&PL_sv_undef);
4633a7c4 1175 else {
c4420975 1176 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1177 if (gvp && *gvp == egv) {
f7aaccc2 1178 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1179 XPUSHTARG;
1180 }
1181 else {
1182 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1183 }
4633a7c4
LW		 1184 }
1185
1186 if (newdefout) {
ded8aa31
GS		 1187 if (!GvIO(newdefout))
1188 gv_IOadd(newdefout);
4633a7c4
LW		 1189 setdefout(newdefout);
1190 }
1191
a0d0e21e
LW		 1192 RETURN;
1193}
1194
1195PP(pp_getc)
1196{
27da23d5 1197 dVAR; dSP; dTARGET;
90133b69 1198 IO *io = NULL;
2ae324a7 1199 MAGIC *mg;
1b6737cc 1200 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
2ae324a7 1201
5b468f54
AMS		 1202 if (gv && (io = GvIO(gv))
1203 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1204 {
f54cb97a 1205 const I32 gimme = GIMME_V;
2ae324a7 1206 PUSHMARK(SP);
5b468f54 1207 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1208 PUTBACK;
1209 ENTER;
864dbfa3 1210 call_method("GETC", gimme);
2ae324a7 1211 LEAVE;
1212 SPAGAIN;
54310121 1213 if (gimme == G_SCALAR)
1214 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1215 RETURN;
1216 }
90133b69 1217 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
041457d9
DM		 1218 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1219 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
90133b69 1220 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1221 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1222 RETPUSHUNDEF;
90133b69 1223 }
bbce6d69 1224 TAINT;
c69006e4 1225 sv_setpvn(TARG, " ", 1);
9bc64814 1226 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1227 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1228 /* Find out how many bytes the char needs */
aa07b2f6 1229 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1230 if (len > 1) {
1231 SvGROW(TARG,len+1);
1232 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1233 SvCUR_set(TARG,1+len);
1234 }
1235 SvUTF8_on(TARG);
1236 }
a0d0e21e
LW		 1237 PUSHTARG;
1238 RETURN;
1239}
1240
76e3520e 1241STATIC OP *
cea2e8a9 1242S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1243{
27da23d5 1244 dVAR;
c09156bb 1245 register PERL_CONTEXT *cx;
f54cb97a 1246 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1247
1248 ENTER;
1249 SAVETMPS;
1250
146174a9 1251 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1252 PUSHFORMAT(cx);
f39bc417 1253 cx->blk_sub.retop = retop;
fd617465
DM		 1254 SAVECOMPPAD();
1255 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
a0d0e21e 1256
4633a7c4 1257 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1258 return CvSTART(cv);
1259}
1260
1261PP(pp_enterwrite)
1262{
39644a26 1263 dSP;
a0d0e21e
LW		 1264 register GV *gv;
1265 register IO *io;
1266 GV *fgv;
1267 CV *cv;
1268
1269 if (MAXARG == 0)
3280af22 1270 gv = PL_defoutgv;
a0d0e21e
LW		 1271 else {
1272 gv = (GV*)POPs;
1273 if (!gv)
3280af22 1274 gv = PL_defoutgv;
a0d0e21e
LW		 1275 }
1276 EXTEND(SP, 1);
1277 io = GvIO(gv);
1278 if (!io) {
1279 RETPUSHNO;
1280 }
1281 if (IoFMT_GV(io))
1282 fgv = IoFMT_GV(io);
1283 else
1284 fgv = gv;
1285
1286 cv = GvFORM(fgv);
a0d0e21e
LW		 1287 if (!cv) {
1288 if (fgv) {
1df70142 1289 SV * const tmpsv = sv_newmortal();
e62f0680 1290 const char *name;
43693395 1291 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1292 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1293 if (name && *name)
1294 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1295 }
cea2e8a9 1296 DIE(aTHX_ "Not a format reference");
a0d0e21e 1297 }
44a8e56a 1298 if (CvCLONE(cv))
1299 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1300
44a8e56a 1301 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1302 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1303}
1304
1305PP(pp_leavewrite)
1306{
27da23d5 1307 dVAR; dSP;
1b6737cc
AL		 1308 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1309 register IO * const io = GvIOp(gv);
1310 PerlIO * const ofp = IoOFP(io);
760ac839 1311 PerlIO *fp;
8772537c
AL		 1312 SV **newsp;
1313 I32 gimme;
c09156bb 1314 register PERL_CONTEXT *cx;
a0d0e21e 1315
760ac839 1316 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1317 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1318 if (!io || !ofp)
1319 goto forget_top;
3280af22
NIS		 1320 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1321 PL_formtarget != PL_toptarget)
a0d0e21e 1322 {
4633a7c4
LW		 1323 GV *fgv;
1324 CV *cv;
a0d0e21e
LW		 1325 if (!IoTOP_GV(io)) {
1326 GV *topgv;
a0d0e21e
LW		 1327
1328 if (!IoTOP_NAME(io)) {
1b6737cc 1329 SV *topname;
a0d0e21e
LW		 1330 if (!IoFMT_NAME(io))
1331 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1332 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1333 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1334 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1335 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1336 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1337 else
ff5bdd37 1338 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1339 }
1340 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1341 if (!topgv || !GvFORM(topgv)) {
b929a54b 1342 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1343 goto forget_top;
1344 }
1345 IoTOP_GV(io) = topgv;
1346 }
748a9306
LW		 1347 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1348 I32 lines = IoLINES_LEFT(io);
504618e9 1349 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1350 if (lines <= 0) /* Yow, header didn't even fit!!! */
1351 goto forget_top;
748a9306
LW		 1352 while (lines-- > 0) {
1353 s = strchr(s, '\n');
1354 if (!s)
1355 break;
1356 s++;
1357 }
1358 if (s) {
f54cb97a 1359 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1360 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1361 do_print(PL_formtarget, ofp);
1362 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1363 sv_chop(PL_formtarget, s);
1364 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1365 }
1366 }
a0d0e21e 1367 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1368 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1369 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1370 IoPAGE(io)++;
3280af22 1371 PL_formtarget = PL_toptarget;
748a9306 1372 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1373 fgv = IoTOP_GV(io);
1374 if (!fgv)
cea2e8a9 1375 DIE(aTHX_ "bad top format reference");
4633a7c4 1376 cv = GvFORM(fgv);
1df70142
AL		 1377 if (!cv) {
1378 SV * const sv = sv_newmortal();
b464bac0 1379 const char *name;
1df70142 1380 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1381 name = SvPV_nolen_const(sv);
2dd78f96 1382 if (name && *name)
1df70142 1383 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1384 }
1df70142
AL		 1385 /* why no:
1386 else
1387 DIE(aTHX_ "Undefined top format called");
1388 ?*/
44a8e56a 1389 if (CvCLONE(cv))
1390 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1391 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1392 }
1393
1394 forget_top:
3280af22 1395 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1396 POPFORMAT(cx);
1397 LEAVE;
1398
1399 fp = IoOFP(io);
1400 if (!fp) {
599cee73 1401 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1402 if (IoIFP(io))
1403 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1404 else if (ckWARN(WARN_CLOSED))
bc37a18f 1405 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1406 }
3280af22 1407 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1408 }
1409 else {
3280af22 1410 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1411 if (ckWARN(WARN_IO))
9014280d 1412 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1413 }
d75029d0 1414 if (!do_print(PL_formtarget, fp))
3280af22 1415 PUSHs(&PL_sv_no);
a0d0e21e 1416 else {
3280af22
NIS		 1417 FmLINES(PL_formtarget) = 0;
1418 SvCUR_set(PL_formtarget, 0);
1419 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1420 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1421 (void)PerlIO_flush(fp);
3280af22 1422 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1423 }
1424 }
9cbac4c7 1425 /* bad_ofp: */
3280af22 1426 PL_formtarget = PL_bodytarget;
a0d0e21e 1427 PUTBACK;
29033a8a
SH		 1428 PERL_UNUSED_VAR(newsp);
1429 PERL_UNUSED_VAR(gimme);
f39bc417 1430 return cx->blk_sub.retop;
a0d0e21e
LW		 1431}
1432
1433PP(pp_prtf)
1434{
27da23d5 1435 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e 1436 IO *io;
760ac839 1437 PerlIO *fp;
26db47c4 1438 SV *sv;
46fc3d4c 1439 MAGIC *mg;
a0d0e21e 1440
c4420975 1441 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
46fc3d4c 1442
5b468f54
AMS		 1443 if (gv && (io = GvIO(gv))
1444 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1445 {
46fc3d4c 1446 if (MARK == ORIGMARK) {
4352c267 1447 MEXTEND(SP, 1);
46fc3d4c 1448 ++MARK;
1449 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1450 ++SP;
1451 }
1452 PUSHMARK(MARK - 1);
5b468f54 1453 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1454 PUTBACK;
1455 ENTER;
864dbfa3 1456 call_method("PRINTF", G_SCALAR);
46fc3d4c 1457 LEAVE;
1458 SPAGAIN;
1459 MARK = ORIGMARK + 1;
1460 *MARK = *SP;
1461 SP = MARK;
1462 RETURN;
1463 }
1464
26db47c4 1465 sv = NEWSV(0,0);
a0d0e21e 1466 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1467 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1468 report_evil_fh(gv, io, PL_op->op_type);
93189314 1469 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1470 goto just_say_no;
1471 }
1472 else if (!(fp = IoOFP(io))) {
599cee73 1473 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1474 if (IoIFP(io))
1475 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1476 else if (ckWARN(WARN_CLOSED))
bc37a18f 1477 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1478 }
93189314 1479 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1480 goto just_say_no;
1481 }
1482 else {
1483 do_sprintf(sv, SP - MARK, MARK + 1);
1484 if (!do_print(sv, fp))
1485 goto just_say_no;
1486
1487 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1488 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1489 goto just_say_no;
1490 }
1491 SvREFCNT_dec(sv);
1492 SP = ORIGMARK;
3280af22 1493 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1494 RETURN;
1495
1496 just_say_no:
1497 SvREFCNT_dec(sv);
1498 SP = ORIGMARK;
3280af22 1499 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1500 RETURN;
1501}
1502
c07a80fd 1503PP(pp_sysopen)
1504{
39644a26 1505 dSP;
1df70142
AL		 1506 const int perm = (MAXARG > 3) ? POPi : 0666;
1507 const int mode = POPi;
1b6737cc
AL		 1508 SV * const sv = POPs;
1509 GV * const gv = (GV *)POPs;
1510 STRLEN len;
c07a80fd 1511
4592e6ca 1512 /* Need TIEHANDLE method ? */
1b6737cc 1513 const char * const tmps = SvPV_const(sv, len);
e62f0680 1514 /* FIXME? do_open should do const */
2fbb330f 1515 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1516 IoLINES(GvIOp(gv)) = 0;
3280af22 1517 PUSHs(&PL_sv_yes);
c07a80fd 1518 }
1519 else {
3280af22 1520 PUSHs(&PL_sv_undef);
c07a80fd 1521 }
1522 RETURN;
1523}
1524
a0d0e21e
LW		 1525PP(pp_sysread)
1526{
27da23d5 1527 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 1528 int offset;
a0d0e21e
LW		 1529 IO *io;
1530 char *buffer;
5b54f415 1531 SSize_t length;
eb5c063a 1532 SSize_t count;
1e422769 1533 Sock_size_t bufsize;
748a9306 1534 SV *bufsv;
a0d0e21e 1535 STRLEN blen;
eb5c063a 1536 int fp_utf8;
1dd30107
NC		 1537 int buffer_utf8;
1538 SV *read_target;
eb5c063a
NIS		 1539 Size_t got = 0;
1540 Size_t wanted;
1d636c13 1541 bool charstart = FALSE;
87330c3c
JH		 1542 STRLEN charskip = 0;
1543 STRLEN skip = 0;
a0d0e21e 1544
1b6737cc 1545 GV * const gv = (GV*)*++MARK;
5b468f54 1546 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1b6737cc 1547 && gv && (io = GvIO(gv)) )
137443ea 1548 {
1b6737cc
AL		 1549 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1550 if (mg) {
1551 SV *sv;
1552 PUSHMARK(MARK-1);
1553 *MARK = SvTIED_obj((SV*)io, mg);
1554 ENTER;
1555 call_method("READ", G_SCALAR);
1556 LEAVE;
1557 SPAGAIN;
1558 sv = POPs;
1559 SP = ORIGMARK;
1560 PUSHs(sv);
1561 RETURN;
1562 }
2ae324a7 1563 }
1564
a0d0e21e
LW		 1565 if (!gv)
1566 goto say_undef;
748a9306 1567 bufsv = *++MARK;
ff68c719 1568 if (! SvOK(bufsv))
1569 sv_setpvn(bufsv, "", 0);
a0d0e21e 1570 length = SvIVx(*++MARK);
748a9306 1571 SETERRNO(0,0);
a0d0e21e
LW		 1572 if (MARK < SP)
1573 offset = SvIVx(*++MARK);
1574 else
1575 offset = 0;
1576 io = GvIO(gv);
b5fe5ca2
SR		 1577 if (!io || !IoIFP(io)) {
1578 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1579 report_evil_fh(gv, io, PL_op->op_type);
1580 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1581 goto say_undef;
b5fe5ca2 1582 }
0064a8a9 1583 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1584 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1585 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1586 SvUTF8_on(bufsv);
9b9d7ce8 1587 buffer_utf8 = 0;
7d59b7e4
NIS		 1588 }
1589 else {
1590 buffer = SvPV_force(bufsv, blen);
1dd30107 1591 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1592 }
1593 if (length < 0)
1594 DIE(aTHX_ "Negative length");
eb5c063a 1595 wanted = length;
7d59b7e4 1596
d0965105
JH		 1597 charstart = TRUE;
1598 charskip = 0;
87330c3c 1599 skip = 0;
d0965105 1600
a0d0e21e 1601#ifdef HAS_SOCKET
533c011a 1602 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1603 char namebuf[MAXPATHLEN];
17a8c7ba 1604#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1605 bufsize = sizeof (struct sockaddr_in);
1606#else
46fc3d4c 1607 bufsize = sizeof namebuf;
490ab354 1608#endif
abf95952
IZ		 1609#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1610 if (bufsize >= 256)
1611 bufsize = 255;
1612#endif
eb160463 1613 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1614 /* 'offset' means 'flags' here */
eb5c063a 1615 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1616 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1617 if (count < 0)
a0d0e21e 1618 RETPUSHUNDEF;
4107cc59
OF		 1619#ifdef EPOC
1620 /* Bogus return without padding */
1621 bufsize = sizeof (struct sockaddr_in);
1622#endif
eb5c063a 1623 SvCUR_set(bufsv, count);
748a9306
LW		 1624 *SvEND(bufsv) = '\0';
1625 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1626 if (fp_utf8)
1627 SvUTF8_on(bufsv);
748a9306 1628 SvSETMAGIC(bufsv);
aac0dd9a 1629 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1630 if (!(IoFLAGS(io) & IOf_UNTAINT))
1631 SvTAINTED_on(bufsv);
a0d0e21e 1632 SP = ORIGMARK;
46fc3d4c 1633 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1634 PUSHs(TARG);
1635 RETURN;
1636 }
1637#else
911d147d 1638 if (PL_op->op_type == OP_RECV)
cea2e8a9 1639 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1640#endif
eb5c063a
NIS		 1641 if (DO_UTF8(bufsv)) {
1642 /* offset adjust in characters not bytes */
1643 blen = sv_len_utf8(bufsv);
7d59b7e4 1644 }
bbce6d69 1645 if (offset < 0) {
eb160463 1646 if (-offset > (int)blen)
cea2e8a9 1647 DIE(aTHX_ "Offset outside string");
bbce6d69 1648 offset += blen;
1649 }
eb5c063a
NIS		 1650 if (DO_UTF8(bufsv)) {
1651 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1652 if (offset >= (int)blen)
1653 offset += SvCUR(bufsv) - blen;
1654 else
1655 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1656 }
1657 more_bytes:
cd52b7b2 1658 bufsize = SvCUR(bufsv);
1dd30107
NC		 1659 /* Allocating length + offset + 1 isn't perfect in the case of reading
1660 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1661 unduly.
1662 (should be 2 * length + offset + 1, or possibly something longer if
1663 PL_encoding is true) */
eb160463 1664 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1665 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1666 Zero(buffer+bufsize, offset-bufsize, char);
1667 }
eb5c063a 1668 buffer = buffer + offset;
1dd30107
NC		 1669 if (!buffer_utf8) {
1670 read_target = bufsv;
1671 } else {
1672 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1673 concatenate it to the current buffer. */
1674
1675 /* Truncate the existing buffer to the start of where we will be
1676 reading to: */
1677 SvCUR_set(bufsv, offset);
1678
1679 read_target = sv_newmortal();
862a34c6 1680 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1681 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1682 }
eb5c063a 1683
533c011a 1684 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1685#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1686 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1687 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1688 buffer, length, 0);
a7092146
GS		 1689 }
1690 else
1691#endif
1692 {
eb5c063a
NIS		 1693 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1694 buffer, length);
a7092146 1695 }
a0d0e21e
LW		 1696 }
1697 else
1698#ifdef HAS_SOCKET__bad_code_maybe
50952442 1699 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1700 char namebuf[MAXPATHLEN];
490ab354
JH		 1701#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1702 bufsize = sizeof (struct sockaddr_in);
1703#else
46fc3d4c 1704 bufsize = sizeof namebuf;
490ab354 1705#endif
eb5c063a 1706 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1707 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1708 }
1709 else
1710#endif
3b02c43c 1711 {
eb5c063a
NIS		 1712 count = PerlIO_read(IoIFP(io), buffer, length);
1713 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1714 if (count == 0 && PerlIO_error(IoIFP(io)))
1715 count = -1;
3b02c43c 1716 }
eb5c063a 1717 if (count < 0) {
a00b5bd3 1718 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1719 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1720 goto say_undef;
af8c498a 1721 }
aa07b2f6 1722 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1723 *SvEND(read_target) = '\0';
1724 (void)SvPOK_only(read_target);
0064a8a9 1725 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1726 /* Look at utf8 we got back and count the characters */
1df70142 1727 const char *bend = buffer + count;
eb5c063a 1728 while (buffer < bend) {
d0965105
JH		 1729 if (charstart) {
1730 skip = UTF8SKIP(buffer);
1731 charskip = 0;
1732 }
1733 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1734 /* partial character - try for rest of it */
1735 length = skip - (bend-buffer);
aa07b2f6 1736 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1737 charstart = FALSE;
1738 charskip += count;
eb5c063a
NIS		 1739 goto more_bytes;
1740 }
1741 else {
1742 got++;
1743 buffer += skip;
d0965105
JH		 1744 charstart = TRUE;
1745 charskip = 0;
eb5c063a
NIS		 1746 }
1747 }
1748 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1749 provided amount read (count) was what was requested (length)
1750 */
1751 if (got < wanted && count == length) {
d0965105 1752 length = wanted - got;
aa07b2f6 1753 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1754 goto more_bytes;
1755 }
1756 /* return value is character count */
1757 count = got;
1758 SvUTF8_on(bufsv);
1759 }
1dd30107
NC		 1760 else if (buffer_utf8) {
1761 /* Let svcatsv upgrade the bytes we read in to utf8.
1762 The buffer is a mortal so will be freed soon. */
1763 sv_catsv_nomg(bufsv, read_target);
1764 }
748a9306 1765 SvSETMAGIC(bufsv);
aac0dd9a 1766 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1767 if (!(IoFLAGS(io) & IOf_UNTAINT))
1768 SvTAINTED_on(bufsv);
a0d0e21e 1769 SP = ORIGMARK;
eb5c063a 1770 PUSHi(count);
a0d0e21e
LW		 1771 RETURN;
1772
1773 say_undef:
1774 SP = ORIGMARK;
1775 RETPUSHUNDEF;
1776}
1777
1778PP(pp_syswrite)
1779{
27da23d5 1780 dVAR; dSP;
1df70142 1781 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1782 if (items == 2) {
9f089d78 1783 SV *sv;
092bebab 1784 EXTEND(SP, 1);
9f089d78
SB		 1785 sv = sv_2mortal(newSViv(sv_len(*SP)));
1786 PUSHs(sv);
092bebab
JH		 1787 PUTBACK;
1788 }
cea2e8a9 1789 return pp_send();
a0d0e21e
LW		 1790}
1791
1792PP(pp_send)
1793{
27da23d5 1794 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1795 GV *gv;
1796 IO *io;
748a9306 1797 SV *bufsv;
83003860 1798 const char *buffer;
8c99d73e
GS		 1799 Size_t length;
1800 SSize_t retval;
a0d0e21e 1801 STRLEN blen;
1d603a67 1802 MAGIC *mg;
a0d0e21e
LW		 1803
1804 gv = (GV*)*++MARK;
14befaf4 1805 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1806 && gv && (io = GvIO(gv))
1807 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1808 {
1d603a67
GB		 1809 SV *sv;
1810
1811 PUSHMARK(MARK-1);
5b468f54 1812 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1813 ENTER;
864dbfa3 1814 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1815 LEAVE;
1816 SPAGAIN;
1817 sv = POPs;
1818 SP = ORIGMARK;
1819 PUSHs(sv);
1820 RETURN;
1821 }
a0d0e21e
LW		 1822 if (!gv)
1823 goto say_undef;
748a9306 1824 bufsv = *++MARK;
8c99d73e 1825#if Size_t_size > IVSIZE
3c001241 1826 length = (Size_t)SvNVx(*++MARK);
146174a9 1827#else
3c001241 1828 length = (Size_t)SvIVx(*++MARK);
146174a9 1829#endif
3c001241 1830 if ((SSize_t)length < 0)
cea2e8a9 1831 DIE(aTHX_ "Negative length");
748a9306 1832 SETERRNO(0,0);
a0d0e21e
LW		 1833 io = GvIO(gv);
1834 if (!io || !IoIFP(io)) {
8c99d73e 1835 retval = -1;
bc37a18f
RG		 1836 if (ckWARN(WARN_CLOSED))
1837 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1838 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1839 goto say_undef;
1840 }
1841
1842 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1843 if (!SvUTF8(bufsv)) {
1844 bufsv = sv_2mortal(newSVsv(bufsv));
1845 buffer = sv_2pvutf8(bufsv, &blen);
1846 } else
83003860 1847 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1848 }
7d59b7e4 1849 else {
4de5f5ca
JH		 1850 if (DO_UTF8(bufsv)) {
1851 /* Not modifying source SV, so making a temporary copy. */
1852 bufsv = sv_2mortal(newSVsv(bufsv));
1853 sv_utf8_downgrade(bufsv, FALSE);
1854 }
83003860 1855 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1856 }
1857
1858 if (PL_op->op_type == OP_SYSWRITE) {
1859 IV offset;
1860 if (DO_UTF8(bufsv)) {
1861 /* length and offset are in chars */
1862 blen = sv_len_utf8(bufsv);
1863 }
bbce6d69 1864 if (MARK < SP) {
a0d0e21e 1865 offset = SvIVx(*++MARK);
bbce6d69 1866 if (offset < 0) {
eb160463 1867 if (-offset > (IV)blen)
cea2e8a9 1868 DIE(aTHX_ "Offset outside string");
bbce6d69 1869 offset += blen;
eb160463 1870 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1871 DIE(aTHX_ "Offset outside string");
bbce6d69 1872 } else
a0d0e21e
LW		 1873 offset = 0;
1874 if (length > blen - offset)
1875 length = blen - offset;
7d59b7e4 1876 if (DO_UTF8(bufsv)) {
83003860 1877 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1878 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1879 }
1880 else {
1881 buffer = buffer+offset;
1882 }
a7092146 1883#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1884 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1885 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1886 buffer, length, 0);
a7092146
GS		 1887 }
1888 else
1889#endif
1890 {
94e4c244 1891 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1892 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1893 buffer, length);
a7092146 1894 }
a0d0e21e
LW		 1895 }
1896#ifdef HAS_SOCKET
1897 else if (SP > MARK) {
a0d0e21e 1898 STRLEN mlen;
1df70142 1899 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1900 /* length is really flags */
8c99d73e
GS		 1901 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1902 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1903 }
1904 else
7d59b7e4 1905 /* length is really flags */
8c99d73e 1906 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1907#else
1908 else
cea2e8a9 1909 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1910#endif
8c99d73e 1911 if (retval < 0)
a0d0e21e
LW		 1912 goto say_undef;
1913 SP = ORIGMARK;
f36eea10
JH		 1914 if (DO_UTF8(bufsv))
1915 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1916#if Size_t_size > IVSIZE
1917 PUSHn(retval);
1918#else
1919 PUSHi(retval);
1920#endif
a0d0e21e
LW		 1921 RETURN;
1922
1923 say_undef:
1924 SP = ORIGMARK;
1925 RETPUSHUNDEF;
1926}
1927
a0d0e21e
LW		 1928PP(pp_eof)
1929{
27da23d5 1930 dVAR; dSP;
a0d0e21e 1931 GV *gv;
5b468f54 1932 IO *io;
4592e6ca 1933 MAGIC *mg;
a0d0e21e 1934
32da55ab 1935 if (MAXARG == 0) {
146174a9
CB		 1936 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1937 IO *io;
ed2c6b9b 1938 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1939 io = GvIO(gv);
1940 if (io && !IoIFP(io)) {
1941 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1942 IoLINES(io) = 0;
1943 IoFLAGS(io) &= ~IOf_START;
2fbb330f 1944 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1945 sv_setpvn(GvSV(gv), "-", 1);
1946 SvSETMAGIC(GvSV(gv));
1947 }
1948 else if (!nextargv(gv))
1949 RETPUSHYES;
1950 }
1951 }
1952 else
1953 gv = PL_last_in_gv; /* eof */
1954 }
a0d0e21e 1955 else
146174a9 1956 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1957
5b468f54
AMS		 1958 if (gv && (io = GvIO(gv))
1959 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1960 {
4592e6ca 1961 PUSHMARK(SP);
5b468f54 1962 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1963 PUTBACK;
1964 ENTER;
864dbfa3 1965 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1966 LEAVE;
1967 SPAGAIN;
1968 RETURN;
1969 }
1970
54310121 1971 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1972 RETURN;
1973}
1974
1975PP(pp_tell)
1976{
27da23d5 1977 dVAR; dSP; dTARGET;
301e8125 1978 GV *gv;
5b468f54 1979 IO *io;
4592e6ca 1980 MAGIC *mg;
a0d0e21e 1981
c4420975
AL		 1982 if (MAXARG != 0)
1983 PL_last_in_gv = (GV*)POPs;
1984 gv = PL_last_in_gv;
4592e6ca 1985
5b468f54
AMS		 1986 if (gv && (io = GvIO(gv))
1987 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1988 {
4592e6ca 1989 PUSHMARK(SP);
5b468f54 1990 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1991 PUTBACK;
1992 ENTER;
864dbfa3 1993 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1994 LEAVE;
1995 SPAGAIN;
1996 RETURN;
1997 }
1998
146174a9
CB		 1999#if LSEEKSIZE > IVSIZE
2000 PUSHn( do_tell(gv) );
2001#else
a0d0e21e 2002 PUSHi( do_tell(gv) );
146174a9 2003#endif
a0d0e21e
LW		 2004 RETURN;
2005}
2006
137443ea 2007PP(pp_sysseek)
2008{
27da23d5 2009 dVAR; dSP;
a0d0e21e 2010 GV *gv;
5b468f54 2011 IO *io;
1df70142 2012 const int whence = POPi;
146174a9
CB		 2013#if LSEEKSIZE > IVSIZE
2014 Off_t offset = (Off_t)SvNVx(POPs);
2015#else
d9b3e12d 2016 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2017#endif
4592e6ca 2018 MAGIC *mg;
a0d0e21e 2019
3280af22 2020 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2021
5b468f54
AMS		 2022 if (gv && (io = GvIO(gv))
2023 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2024 {
4592e6ca 2025 PUSHMARK(SP);
5b468f54 2026 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2027#if LSEEKSIZE > IVSIZE
2028 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2029#else
b448e4fe 2030 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2031#endif
b448e4fe 2032 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2033 PUTBACK;
2034 ENTER;
864dbfa3 2035 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2036 LEAVE;
2037 SPAGAIN;
2038 RETURN;
2039 }
2040
533c011a 2041 if (PL_op->op_type == OP_SEEK)
8903cb82 2042 PUSHs(boolSV(do_seek(gv, offset, whence)));
2043 else {
b448e4fe
JH		 2044 Off_t sought = do_sysseek(gv, offset, whence);
2045 if (sought < 0)
146174a9
CB		 2046 PUSHs(&PL_sv_undef);
2047 else {
b448e4fe 2048 SV* sv = sought ?
146174a9 2049#if LSEEKSIZE > IVSIZE
b448e4fe 2050 newSVnv((NV)sought)
146174a9 2051#else
b448e4fe 2052 newSViv(sought)
146174a9
CB		 2053#endif
2054 : newSVpvn(zero_but_true, ZBTLEN);
2055 PUSHs(sv_2mortal(sv));
2056 }
8903cb82 2057 }
a0d0e21e
LW		 2058 RETURN;
2059}
2060
2061PP(pp_truncate)
2062{
39644a26 2063 dSP;
8c99d73e
GS		 2064 /* There seems to be no consensus on the length type of truncate()
2065 * and ftruncate(), both off_t and size_t have supporters. In
2066 * general one would think that when using large files, off_t is
2067 * at least as wide as size_t, so using an off_t should be okay. */
2068 /* XXX Configure probe for the length type of *truncate() needed XXX */
2069 Off_t len;
a0d0e21e 2070
25342a55 2071#if Off_t_size > IVSIZE
8c99d73e
GS		 2072 len = (Off_t)POPn;
2073#else
2074 len = (Off_t)POPi;
2075#endif
2076 /* Checking for length < 0 is problematic as the type might or
301e8125 2077 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2078 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2079 SETERRNO(0,0);
d05c1ba0 2080 {
d05c1ba0
JH		 2081 int result = 1;
2082 GV *tmpgv;
090bf15b
SR		 2083 IO *io;
2084
d05c1ba0 2085 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2086 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2087
090bf15b
SR		 2088 do_ftruncate_gv:
2089 if (!GvIO(tmpgv))
2090 result = 0;
d05c1ba0 2091 else {
090bf15b
SR		 2092 PerlIO *fp;
2093 io = GvIOp(tmpgv);
2094 do_ftruncate_io:
2095 TAINT_PROPER("truncate");
2096 if (!(fp = IoIFP(io))) {
2097 result = 0;
2098 }
2099 else {
2100 PerlIO_flush(fp);
cbdc8872 2101#ifdef HAS_TRUNCATE
090bf15b 2102 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2103#else
090bf15b 2104 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2105#endif
090bf15b
SR		 2106 result = 0;
2107 }
d05c1ba0 2108 }
cbdc8872 2109 }
d05c1ba0
JH		 2110 else {
2111 SV *sv = POPs;
83003860 2112 const char *name;
7a5fd60d 2113
d05c1ba0
JH		 2114 if (SvTYPE(sv) == SVt_PVGV) {
2115 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2116 goto do_ftruncate_gv;
d05c1ba0
JH		 2117 }
2118 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2119 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2120 goto do_ftruncate_gv;
2121 }
2122 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2123 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2124 goto do_ftruncate_io;
d05c1ba0 2125 }
1e422769 2126
83003860 2127 name = SvPV_nolen_const(sv);
d05c1ba0 2128 TAINT_PROPER("truncate");
cbdc8872 2129#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2130 if (truncate(name, len) < 0)
2131 result = 0;
cbdc8872 2132#else
d05c1ba0
JH		 2133 {
2134 int tmpfd;
2135
2136 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2137 result = 0;
d05c1ba0
JH		 2138 else {
2139 if (my_chsize(tmpfd, len) < 0)
2140 result = 0;
2141 PerlLIO_close(tmpfd);
2142 }
cbdc8872 2143 }
a0d0e21e 2144#endif
d05c1ba0 2145 }
a0d0e21e 2146
d05c1ba0
JH		 2147 if (result)
2148 RETPUSHYES;
2149 if (!errno)
93189314 2150 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2151 RETPUSHUNDEF;
2152 }
a0d0e21e
LW		 2153}
2154
a0d0e21e
LW		 2155PP(pp_ioctl)
2156{
39644a26 2157 dSP; dTARGET;
748a9306 2158 SV *argsv = POPs;
1df70142 2159 const unsigned int func = POPu;
e1ec3a88 2160 const int optype = PL_op->op_type;
a0d0e21e 2161 char *s;
324aa91a 2162 IV retval;
a0d0e21e 2163 GV *gv = (GV*)POPs;
c289d2f7 2164 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2165
748a9306 2166 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2167 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2168 report_evil_fh(gv, io, PL_op->op_type);
93189314 2169 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2170 RETPUSHUNDEF;
2171 }
2172
748a9306 2173 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2174 STRLEN len;
324aa91a 2175 STRLEN need;
748a9306 2176 s = SvPV_force(argsv, len);
324aa91a
HF		 2177 need = IOCPARM_LEN(func);
2178 if (len < need) {
2179 s = Sv_Grow(argsv, need + 1);
2180 SvCUR_set(argsv, need);
a0d0e21e
LW		 2181 }
2182
748a9306 2183 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2184 }
2185 else {
748a9306 2186 retval = SvIV(argsv);
c529f79d 2187 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2188 }
2189
2190 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2191
2192 if (optype == OP_IOCTL)
2193#ifdef HAS_IOCTL
76e3520e 2194 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2195#else
cea2e8a9 2196 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2197#endif
2198 else
c214f4ad
WB		 2199#ifndef HAS_FCNTL
2200 DIE(aTHX_ "fcntl is not implemented");
2201#else
55497cff 2202#if defined(OS2) && defined(__EMX__)
760ac839 2203 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2204#else
760ac839 2205 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2206#endif
6652bd42 2207#endif
a0d0e21e 2208
6652bd42 2209#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2210 if (SvPOK(argsv)) {
2211 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2212 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2213 OP_NAME(PL_op));
748a9306
LW		 2214 s[SvCUR(argsv)] = 0; /* put our null back */
2215 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2216 }
2217
2218 if (retval == -1)
2219 RETPUSHUNDEF;
2220 if (retval != 0) {
2221 PUSHi(retval);
2222 }
2223 else {
8903cb82 2224 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2225 }
4808266b 2226#endif
c214f4ad 2227 RETURN;
a0d0e21e
LW		 2228}
2229
2230PP(pp_flock)
2231{
9cad6237 2232#ifdef FLOCK
39644a26 2233 dSP; dTARGET;
a0d0e21e
LW		 2234 I32 value;
2235 int argtype;
2236 GV *gv;
bc37a18f 2237 IO *io = NULL;
760ac839 2238 PerlIO *fp;
16d20bd9 2239
a0d0e21e 2240 argtype = POPi;
32da55ab 2241 if (MAXARG == 0)
3280af22 2242 gv = PL_last_in_gv;
a0d0e21e
LW		 2243 else
2244 gv = (GV*)POPs;
bc37a18f
RG		 2245 if (gv && (io = GvIO(gv)))
2246 fp = IoIFP(io);
2247 else {
a0d0e21e 2248 fp = Nullfp;
bc37a18f
RG		 2249 io = NULL;
2250 }
a0d0e21e 2251 if (fp) {
68dc0745 2252 (void)PerlIO_flush(fp);
76e3520e 2253 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2254 }
cb50131a 2255 else {
bc37a18f
RG		 2256 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2257 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2258 value = 0;
93189314 2259 SETERRNO(EBADF,RMS_IFI);
cb50131a 2260 }
a0d0e21e
LW		 2261 PUSHi(value);
2262 RETURN;
2263#else
cea2e8a9 2264 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2265#endif
2266}
2267
2268/* Sockets. */
2269
2270PP(pp_socket)
2271{
a0d0e21e 2272#ifdef HAS_SOCKET
9cad6237 2273 dSP;
a0d0e21e
LW		 2274 GV *gv;
2275 register IO *io;
2276 int protocol = POPi;
2277 int type = POPi;
2278 int domain = POPi;
2279 int fd;
2280
2281 gv = (GV*)POPs;
c289d2f7 2282 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2283
c289d2f7
JH		 2284 if (!gv || !io) {
2285 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2286 report_evil_fh(gv, io, PL_op->op_type);
2287 if (IoIFP(io))
2288 do_close(gv, FALSE);
93189314 2289 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2290 RETPUSHUNDEF;
2291 }
2292
57171420
BS		 2293 if (IoIFP(io))
2294 do_close(gv, FALSE);
2295
a0d0e21e 2296 TAINT_PROPER("socket");
6ad3d225 2297 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2298 if (fd < 0)
2299 RETPUSHUNDEF;
460c8493
IZ		 2300 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2301 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2302 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2303 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2304 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2305 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2306 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2307 RETPUSHUNDEF;
2308 }
8d2a6795
GS		 2309#if defined(HAS_FCNTL) && defined(F_SETFD)
2310 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2311#endif
a0d0e21e 2312
d5ff79b3
OF		 2313#ifdef EPOC
2314 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2315#endif
2316
a0d0e21e
LW		 2317 RETPUSHYES;
2318#else
cea2e8a9 2319 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2320#endif
2321}
2322
2323PP(pp_sockpair)
2324{
c95c94b1 2325#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2326 dSP;
a0d0e21e
LW		 2327 GV *gv1;
2328 GV *gv2;
2329 register IO *io1;
2330 register IO *io2;
2331 int protocol = POPi;
2332 int type = POPi;
2333 int domain = POPi;
2334 int fd[2];
2335
2336 gv2 = (GV*)POPs;
2337 gv1 = (GV*)POPs;
c289d2f7
JH		 2338 io1 = gv1 ? GvIOn(gv1) : NULL;
2339 io2 = gv2 ? GvIOn(gv2) : NULL;
2340 if (!gv1 || !gv2 || !io1 || !io2) {
2341 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2342 if (!gv1 || !io1)
2343 report_evil_fh(gv1, io1, PL_op->op_type);
2344 if (!gv2 || !io2)
2345 report_evil_fh(gv1, io2, PL_op->op_type);
2346 }
2347 if (IoIFP(io1))
2348 do_close(gv1, FALSE);
2349 if (IoIFP(io2))
2350 do_close(gv2, FALSE);
a0d0e21e 2351 RETPUSHUNDEF;
c289d2f7 2352 }
a0d0e21e 2353
dc0d0a5f
JH		 2354 if (IoIFP(io1))
2355 do_close(gv1, FALSE);
2356 if (IoIFP(io2))
2357 do_close(gv2, FALSE);
57171420 2358
a0d0e21e 2359 TAINT_PROPER("socketpair");
6ad3d225 2360 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2361 RETPUSHUNDEF;
460c8493
IZ		 2362 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2363 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2364 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2365 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2366 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2367 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2368 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2369 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2370 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2371 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2372 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2373 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2374 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2375 RETPUSHUNDEF;
2376 }
8d2a6795
GS		 2377#if defined(HAS_FCNTL) && defined(F_SETFD)
2378 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2379 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2380#endif
a0d0e21e
LW		 2381
2382 RETPUSHYES;
2383#else
cea2e8a9 2384 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2385#endif
2386}
2387
2388PP(pp_bind)
2389{
a0d0e21e 2390#ifdef HAS_SOCKET
9cad6237 2391 dSP;
eec2d3df 2392#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2393 extern void GETPRIVMODE();
2394 extern void GETUSERMODE();
eec2d3df 2395#endif
748a9306 2396 SV *addrsv = POPs;
349d4f2f
NC		 2397 /* OK, so on what platform does bind modify addr? */
2398 const char *addr;
a0d0e21e
LW		 2399 GV *gv = (GV*)POPs;
2400 register IO *io = GvIOn(gv);
2401 STRLEN len;
eec2d3df
GS		 2402 int bind_ok = 0;
2403#ifdef MPE
2404 int mpeprivmode = 0;
2405#endif
a0d0e21e
LW		 2406
2407 if (!io || !IoIFP(io))
2408 goto nuts;
2409
349d4f2f 2410 addr = SvPV_const(addrsv, len);
a0d0e21e 2411 TAINT_PROPER("bind");
eec2d3df
GS		 2412#ifdef MPE /* Deal with MPE bind() peculiarities */
2413 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2414 /* The address *MUST* stupidly be zero. */
2415 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2416 /* PRIV mode is required to bind() to ports < 1024. */
2417 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2418 ((struct sockaddr_in *)addr)->sin_port > 0) {
2419 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2420 mpeprivmode = 1;
2421 }
2422 }
2423#endif /* MPE */
2424 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2425 (struct sockaddr *)addr, len) >= 0)
2426 bind_ok = 1;
2427
2428#ifdef MPE /* Switch back to USER mode */
2429 if (mpeprivmode)
2430 GETUSERMODE();
2431#endif /* MPE */
2432
2433 if (bind_ok)
a0d0e21e
LW		 2434 RETPUSHYES;
2435 else
2436 RETPUSHUNDEF;
2437
2438nuts:
599cee73 2439 if (ckWARN(WARN_CLOSED))
bc37a18f 2440 report_evil_fh(gv, io, PL_op->op_type);
93189314 2441 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2442 RETPUSHUNDEF;
2443#else
cea2e8a9 2444 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2445#endif
2446}
2447
2448PP(pp_connect)
2449{
a0d0e21e 2450#ifdef HAS_SOCKET
9cad6237 2451 dSP;
748a9306 2452 SV *addrsv = POPs;
349d4f2f 2453 const char *addr;
a0d0e21e
LW		 2454 GV *gv = (GV*)POPs;
2455 register IO *io = GvIOn(gv);
2456 STRLEN len;
2457
2458 if (!io || !IoIFP(io))
2459 goto nuts;
2460
349d4f2f 2461 addr = SvPV_const(addrsv, len);
a0d0e21e 2462 TAINT_PROPER("connect");
6ad3d225 2463 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2464 RETPUSHYES;
2465 else
2466 RETPUSHUNDEF;
2467
2468nuts:
599cee73 2469 if (ckWARN(WARN_CLOSED))
bc37a18f 2470 report_evil_fh(gv, io, PL_op->op_type);
93189314 2471 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2472 RETPUSHUNDEF;
2473#else
cea2e8a9 2474 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2475#endif
2476}
2477
2478PP(pp_listen)
2479{
a0d0e21e 2480#ifdef HAS_SOCKET
9cad6237 2481 dSP;
a0d0e21e
LW		 2482 int backlog = POPi;
2483 GV *gv = (GV*)POPs;
c289d2f7 2484 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2485
c289d2f7 2486 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2487 goto nuts;
2488
6ad3d225 2489 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2490 RETPUSHYES;
2491 else
2492 RETPUSHUNDEF;
2493
2494nuts:
599cee73 2495 if (ckWARN(WARN_CLOSED))
bc37a18f 2496 report_evil_fh(gv, io, PL_op->op_type);
93189314 2497 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2498 RETPUSHUNDEF;
2499#else
cea2e8a9 2500 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2501#endif
2502}
2503
2504PP(pp_accept)
2505{
a0d0e21e 2506#ifdef HAS_SOCKET
9cad6237 2507 dSP; dTARGET;
a0d0e21e
LW		 2508 GV *ngv;
2509 GV *ggv;
2510 register IO *nstio;
2511 register IO *gstio;
93d47a36
JH		 2512 char namebuf[MAXPATHLEN];
2513#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2514 Sock_size_t len = sizeof (struct sockaddr_in);
2515#else
2516 Sock_size_t len = sizeof namebuf;
2517#endif
a0d0e21e
LW		 2518 int fd;
2519
2520 ggv = (GV*)POPs;
2521 ngv = (GV*)POPs;
2522
2523 if (!ngv)
2524 goto badexit;
2525 if (!ggv)
2526 goto nuts;
2527
2528 gstio = GvIO(ggv);
2529 if (!gstio || !IoIFP(gstio))
2530 goto nuts;
2531
2532 nstio = GvIOn(ngv);
93d47a36 2533 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2534 if (fd < 0)
2535 goto badexit;
a70048fb
AB		 2536 if (IoIFP(nstio))
2537 do_close(ngv, FALSE);
460c8493
IZ		 2538 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2539 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2540 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2541 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2542 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2543 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2544 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2545 goto badexit;
2546 }
8d2a6795
GS		 2547#if defined(HAS_FCNTL) && defined(F_SETFD)
2548 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2549#endif
a0d0e21e 2550
ed79a026 2551#ifdef EPOC
93d47a36 2552 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2553 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2554#endif
381c1bae 2555#ifdef __SCO_VERSION__
93d47a36 2556 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2557#endif
ed79a026 2558
93d47a36 2559 PUSHp(namebuf, len);
a0d0e21e
LW		 2560 RETURN;
2561
2562nuts:
599cee73 2563 if (ckWARN(WARN_CLOSED))
bc37a18f 2564 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2565 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2566
2567badexit:
2568 RETPUSHUNDEF;
2569
2570#else
cea2e8a9 2571 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2572#endif
2573}
2574
2575PP(pp_shutdown)
2576{
a0d0e21e 2577#ifdef HAS_SOCKET
9cad6237 2578 dSP; dTARGET;
a0d0e21e
LW		 2579 int how = POPi;
2580 GV *gv = (GV*)POPs;
2581 register IO *io = GvIOn(gv);
2582
2583 if (!io || !IoIFP(io))
2584 goto nuts;
2585
6ad3d225 2586 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2587 RETURN;
2588
2589nuts:
599cee73 2590 if (ckWARN(WARN_CLOSED))
bc37a18f 2591 report_evil_fh(gv, io, PL_op->op_type);
93189314 2592 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2593 RETPUSHUNDEF;
2594#else
cea2e8a9 2595 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2596#endif
2597}
2598
a0d0e21e
LW		 2599PP(pp_ssockopt)
2600{
a0d0e21e 2601#ifdef HAS_SOCKET
9cad6237 2602 dSP;
533c011a 2603 int optype = PL_op->op_type;
a0d0e21e
LW		 2604 SV *sv;
2605 int fd;
2606 unsigned int optname;
2607 unsigned int lvl;
2608 GV *gv;
2609 register IO *io;
1e422769 2610 Sock_size_t len;
a0d0e21e
LW		 2611
2612 if (optype == OP_GSOCKOPT)
2613 sv = sv_2mortal(NEWSV(22, 257));
2614 else
2615 sv = POPs;
2616 optname = (unsigned int) POPi;
2617 lvl = (unsigned int) POPi;
2618
2619 gv = (GV*)POPs;
2620 io = GvIOn(gv);
2621 if (!io || !IoIFP(io))
2622 goto nuts;
2623
760ac839 2624 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2625 switch (optype) {
2626 case OP_GSOCKOPT:
748a9306 2627 SvGROW(sv, 257);
a0d0e21e 2628 (void)SvPOK_only(sv);
748a9306
LW		 2629 SvCUR_set(sv,256);
2630 *SvEND(sv) ='\0';
1e422769 2631 len = SvCUR(sv);
6ad3d225 2632 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2633 goto nuts2;
1e422769 2634 SvCUR_set(sv, len);
748a9306 2635 *SvEND(sv) ='\0';
a0d0e21e
LW		 2636 PUSHs(sv);
2637 break;
2638 case OP_SSOCKOPT: {
1215b447
JH		 2639#if defined(__SYMBIAN32__)
2640# define SETSOCKOPT_OPTION_VALUE_T void *
2641#else
2642# define SETSOCKOPT_OPTION_VALUE_T const char *
2643#endif
2644 /* XXX TODO: We need to have a proper type (a Configure probe,
2645 * etc.) for what the C headers think of the third argument of
2646 * setsockopt(), the option_value read-only buffer: is it
2647 * a "char *", or a "void *", const or not. Some compilers
2648 * don't take kindly to e.g. assuming that "char *" implicitly
2649 * promotes to a "void *", or to explicitly promoting/demoting
2650 * consts to non/vice versa. The "const void *" is the SUS
2651 * definition, but that does not fly everywhere for the above
2652 * reasons. */
2653 SETSOCKOPT_OPTION_VALUE_T buf;
1e422769 2654 int aint;
2655 if (SvPOKp(sv)) {
2d8e6c8d 2656 STRLEN l;
1215b447 2657 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2d8e6c8d 2658 len = l;
1e422769 2659 }
56ee1660 2660 else {
a0d0e21e 2661 aint = (int)SvIV(sv);
1215b447 2662 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
a0d0e21e
LW		 2663 len = sizeof(int);
2664 }
6ad3d225 2665 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2666 goto nuts2;
3280af22 2667 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2668 }
2669 break;
2670 }
2671 RETURN;
2672
2673nuts:
599cee73 2674 if (ckWARN(WARN_CLOSED))
bc37a18f 2675 report_evil_fh(gv, io, optype);
93189314 2676 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2677nuts2:
2678 RETPUSHUNDEF;
2679
2680#else
af51a00e 2681 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 2682#endif
2683}
2684
a0d0e21e
LW		 2685PP(pp_getpeername)
2686{
a0d0e21e 2687#ifdef HAS_SOCKET
9cad6237 2688 dSP;
533c011a 2689 int optype = PL_op->op_type;
a0d0e21e
LW		 2690 SV *sv;
2691 int fd;
2692 GV *gv = (GV*)POPs;
2693 register IO *io = GvIOn(gv);
1e422769 2694 Sock_size_t len;
a0d0e21e
LW		 2695
2696 if (!io || !IoIFP(io))
2697 goto nuts;
2698
2699 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2700 (void)SvPOK_only(sv);
1e422769 2701 len = 256;
2702 SvCUR_set(sv, len);
748a9306 2703 *SvEND(sv) ='\0';
760ac839 2704 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2705 switch (optype) {
2706 case OP_GETSOCKNAME:
6ad3d225 2707 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2708 goto nuts2;
2709 break;
2710 case OP_GETPEERNAME:
6ad3d225 2711 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2712 goto nuts2;
490ab354
JH		 2713#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2714 {
2715 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";
2716 /* If the call succeeded, make sure we don't have a zeroed port/addr */
349d4f2f 2717 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2fbb330f 2718 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 2719 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2720 goto nuts2;
490ab354
JH		 2721 }
2722 }
2723#endif
a0d0e21e
LW		 2724 break;
2725 }
13826f2c
CS		 2726#ifdef BOGUS_GETNAME_RETURN
2727 /* Interactive Unix, getpeername() and getsockname()
2728 does not return valid namelen */
1e422769 2729 if (len == BOGUS_GETNAME_RETURN)
2730 len = sizeof(struct sockaddr);
13826f2c 2731#endif
1e422769 2732 SvCUR_set(sv, len);
748a9306 2733 *SvEND(sv) ='\0';
a0d0e21e
LW		 2734 PUSHs(sv);
2735 RETURN;
2736
2737nuts:
599cee73 2738 if (ckWARN(WARN_CLOSED))
bc37a18f 2739 report_evil_fh(gv, io, optype);
93189314 2740 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2741nuts2:
2742 RETPUSHUNDEF;
2743
2744#else
af51a00e 2745 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 2746#endif
2747}
2748
2749/* Stat calls. */
2750
a0d0e21e
LW		 2751PP(pp_stat)
2752{
39644a26 2753 dSP;
2dd78f96 2754 GV *gv;
54310121 2755 I32 gimme;
a0d0e21e
LW		 2756 I32 max = 13;
2757
533c011a 2758 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2759 gv = cGVOP_gv;
8a4e5b40 2760 if (PL_op->op_type == OP_LSTAT) {
5d3e98de 2761 if (gv != PL_defgv) {
5d329e6e 2762 do_fstat_warning_check:
5d3e98de 2763 if (ckWARN(WARN_IO))
9014280d 2764 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2765 "lstat() on filehandle %s", GvENAME(gv));
2766 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2767 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2768 }
2769
748a9306 2770 do_fstat:
2dd78f96 2771 if (gv != PL_defgv) {
3280af22 2772 PL_laststype = OP_STAT;
2dd78f96 2773 PL_statgv = gv;
c69006e4 2774 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2775 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2776 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2777 }
9ddeeac9 2778 if (PL_laststatval < 0) {
2dd78f96
JH		 2779 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2780 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2781 max = 0;
9ddeeac9 2782 }
a0d0e21e
LW		 2783 }
2784 else {
748a9306
LW		 2785 SV* sv = POPs;
2786 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2787 gv = (GV*)sv;
748a9306
LW		 2788 goto do_fstat;
2789 }
2790 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2791 gv = (GV*)SvRV(sv);
5d329e6e
NC		 2792 if (PL_op->op_type == OP_LSTAT)
2793 goto do_fstat_warning_check;
748a9306
LW		 2794 goto do_fstat;
2795 }
0510663f 2796 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2797 PL_statgv = Nullgv;
533c011a
NIS		 2798 PL_laststype = PL_op->op_type;
2799 if (PL_op->op_type == OP_LSTAT)
0510663f 2800 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2801 else
0510663f 2802 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2803 if (PL_laststatval < 0) {
0510663f 2804 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2805 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2806 max = 0;
2807 }
2808 }
2809
54310121 2810 gimme = GIMME_V;
2811 if (gimme != G_ARRAY) {
2812 if (gimme != G_VOID)
2813 XPUSHs(boolSV(max));
2814 RETURN;
a0d0e21e
LW		 2815 }
2816 if (max) {
36477c24 2817 EXTEND(SP, max);
2818 EXTEND_MORTAL(max);
1ff81528
PL		 2819 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2820 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2821 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2822 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2823#if Uid_t_size > IVSIZE
2824 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2825#else
23dcd6c8 2826# if Uid_t_sign <= 0
1ff81528 2827 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2828# else
2829 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2830# endif
146174a9 2831#endif
301e8125 2832#if Gid_t_size > IVSIZE
146174a9
CB		 2833 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2834#else
23dcd6c8 2835# if Gid_t_sign <= 0
1ff81528 2836 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2837# else
2838 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2839# endif
146174a9 2840#endif
cbdc8872 2841#ifdef USE_STAT_RDEV
1ff81528 2842 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2843#else
79cb57f6 2844 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2845#endif
146174a9 2846#if Off_t_size > IVSIZE
4a9d6100 2847 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2848#else
1ff81528 2849 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2850#endif
cbdc8872 2851#ifdef BIG_TIME
172ae379
JH		 2852 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2853 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2854 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2855#else
1ff81528
PL		 2856 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2857 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2858 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2859#endif
a0d0e21e 2860#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2861 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2862 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2863#else
79cb57f6
GS		 2864 PUSHs(sv_2mortal(newSVpvn("", 0)));
2865 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2866#endif
2867 }
2868 RETURN;
2869}
2870
fbb0b3b3
RGS		 2871/* This macro is used by the stacked filetest operators :
2872 * if the previous filetest failed, short-circuit and pass its value.
2873 * Else, discard it from the stack and continue. --rgs
2874 */
2875#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2876 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2877 else { (void)POPs; PUTBACK; } \
2878 }
2879
a0d0e21e
LW		 2880PP(pp_ftrread)
2881{
9cad6237 2882 I32 result;
2a3ff820 2883 dSP;
fbb0b3b3 2884 STACKED_FTEST_CHECK;
5ff3f7a4 2885#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2886 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2887 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2888 if (result == 0)
2889 RETPUSHYES;
2890 if (result < 0)
2891 RETPUSHUNDEF;
2892 RETPUSHNO;
22865c03
GS		 2893 }
2894 else
cea2e8a9 2895 result = my_stat();
5ff3f7a4 2896#else
cea2e8a9 2897 result = my_stat();
5ff3f7a4 2898#endif
22865c03 2899 SPAGAIN;
a0d0e21e
LW		 2900 if (result < 0)
2901 RETPUSHUNDEF;
3280af22 2902 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2903 RETPUSHYES;
2904 RETPUSHNO;
2905}
2906
2907PP(pp_ftrwrite)
2908{
9cad6237 2909 I32 result;
2a3ff820 2910 dSP;
fbb0b3b3 2911 STACKED_FTEST_CHECK;
5ff3f7a4 2912#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2913 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2914 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2915 if (result == 0)
2916 RETPUSHYES;
2917 if (result < 0)
2918 RETPUSHUNDEF;
2919 RETPUSHNO;
22865c03
GS		 2920 }
2921 else
cea2e8a9 2922 result = my_stat();
5ff3f7a4 2923#else
cea2e8a9 2924 result = my_stat();
5ff3f7a4 2925#endif
22865c03 2926 SPAGAIN;
a0d0e21e
LW		 2927 if (result < 0)
2928 RETPUSHUNDEF;
3280af22 2929 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2930 RETPUSHYES;
2931 RETPUSHNO;
2932}
2933
2934PP(pp_ftrexec)
2935{
9cad6237 2936 I32 result;
2a3ff820 2937 dSP;
fbb0b3b3 2938 STACKED_FTEST_CHECK;
5ff3f7a4 2939#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2940 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2941 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2942 if (result == 0)
2943 RETPUSHYES;
2944 if (result < 0)
2945 RETPUSHUNDEF;
2946 RETPUSHNO;
22865c03
GS		 2947 }
2948 else
cea2e8a9 2949 result = my_stat();
5ff3f7a4 2950#else
cea2e8a9 2951 result = my_stat();
5ff3f7a4 2952#endif
22865c03 2953 SPAGAIN;
a0d0e21e
LW		 2954 if (result < 0)
2955 RETPUSHUNDEF;
3280af22 2956 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2957 RETPUSHYES;
2958 RETPUSHNO;
2959}
2960
2961PP(pp_fteread)
2962{
9cad6237 2963 I32 result;
2a3ff820 2964 dSP;
fbb0b3b3 2965 STACKED_FTEST_CHECK;
5ff3f7a4 2966#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 2967 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2968 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2969 if (result == 0)
2970 RETPUSHYES;
2971 if (result < 0)
2972 RETPUSHUNDEF;
2973 RETPUSHNO;
22865c03
GS		 2974 }
2975 else
cea2e8a9 2976 result = my_stat();
5ff3f7a4 2977#else
cea2e8a9 2978 result = my_stat();
5ff3f7a4 2979#endif
22865c03 2980 SPAGAIN;
a0d0e21e
LW		 2981 if (result < 0)
2982 RETPUSHUNDEF;
3280af22 2983 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2984 RETPUSHYES;
2985 RETPUSHNO;
2986}
2987
2988PP(pp_ftewrite)
2989{
9cad6237 2990 I32 result;
2a3ff820 2991 dSP;
fbb0b3b3 2992 STACKED_FTEST_CHECK;
5ff3f7a4 2993#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 2994 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2995 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 2996 if (result == 0)
2997 RETPUSHYES;
2998 if (result < 0)
2999 RETPUSHUNDEF;
3000 RETPUSHNO;
22865c03
GS		 3001 }
3002 else
cea2e8a9 3003 result = my_stat();
5ff3f7a4 3004#else
cea2e8a9 3005 result = my_stat();
5ff3f7a4 3006#endif
22865c03 3007 SPAGAIN;
a0d0e21e
LW		 3008 if (result < 0)
3009 RETPUSHUNDEF;
3280af22 3010 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3011 RETPUSHYES;
3012 RETPUSHNO;
3013}
3014
3015PP(pp_fteexec)
3016{
9cad6237 3017 I32 result;
2a3ff820 3018 dSP;
fbb0b3b3 3019 STACKED_FTEST_CHECK;
5ff3f7a4 3020#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3021 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3022 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3023 if (result == 0)
3024 RETPUSHYES;
3025 if (result < 0)
3026 RETPUSHUNDEF;
3027 RETPUSHNO;
22865c03
GS		 3028 }
3029 else
cea2e8a9 3030 result = my_stat();
5ff3f7a4 3031#else
cea2e8a9 3032 result = my_stat();
5ff3f7a4 3033#endif
22865c03 3034 SPAGAIN;
a0d0e21e
LW		 3035 if (result < 0)
3036 RETPUSHUNDEF;
3280af22 3037 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3038 RETPUSHYES;
3039 RETPUSHNO;
3040}
3041
3042PP(pp_ftis)
3043{
fbb0b3b3 3044 I32 result;
d7f0a2f4 3045 const int op_type = PL_op->op_type;
2a3ff820 3046 dSP;
fbb0b3b3
RGS		 3047 STACKED_FTEST_CHECK;
3048 result = my_stat();
3049 SPAGAIN;
a0d0e21e
LW		 3050 if (result < 0)
3051 RETPUSHUNDEF;
d7f0a2f4
NC		 3052 if (op_type == OP_FTIS)
3053 RETPUSHYES;
957b0e1d 3054 {
d7f0a2f4
NC		 3055 /* You can't dTARGET inside OP_FTIS, because you'll get
3056 "panic: pad_sv po" - the op is not flagged to have a target. */
957b0e1d 3057 dTARGET;
d7f0a2f4 3058 switch (op_type) {
957b0e1d
NC		 3059 case OP_FTSIZE:
3060#if Off_t_size > IVSIZE
3061 PUSHn(PL_statcache.st_size);
3062#else
3063 PUSHi(PL_statcache.st_size);
3064#endif
3065 break;
3066 case OP_FTMTIME:
3067 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3068 break;
3069 case OP_FTATIME:
3070 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3071 break;
3072 case OP_FTCTIME:
3073 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3074 break;
3075 }
3076 }
3077 RETURN;
a0d0e21e
LW		 3078}
3079
a0d0e21e
LW		 3080PP(pp_ftrowned)
3081{
fbb0b3b3 3082 I32 result;
2a3ff820 3083 dSP;
17ad201a
NC		 3084
3085 /* I believe that all these three are likely to be defined on most every
3086 system these days. */
3087#ifndef S_ISUID
3088 if(PL_op->op_type == OP_FTSUID)
3089 RETPUSHNO;
3090#endif
3091#ifndef S_ISGID
3092 if(PL_op->op_type == OP_FTSGID)
3093 RETPUSHNO;
3094#endif
3095#ifndef S_ISVTX
3096 if(PL_op->op_type == OP_FTSVTX)
3097 RETPUSHNO;
3098#endif
3099
fbb0b3b3
RGS		 3100 STACKED_FTEST_CHECK;
3101 result = my_stat();
3102 SPAGAIN;
a0d0e21e
LW		 3103 if (result < 0)
3104 RETPUSHUNDEF;
f1cb2d48
NC		 3105 switch (PL_op->op_type) {
3106 case OP_FTROWNED:
9ab9fa88 3107 if (PL_statcache.st_uid == PL_uid)
f1cb2d48
NC		 3108 RETPUSHYES;
3109 break;
3110 case OP_FTEOWNED:
3111 if (PL_statcache.st_uid == PL_euid)
3112 RETPUSHYES;
3113 break;
3114 case OP_FTZERO:
3115 if (PL_statcache.st_size == 0)
3116 RETPUSHYES;
3117 break;
3118 case OP_FTSOCK:
3119 if (S_ISSOCK(PL_statcache.st_mode))
3120 RETPUSHYES;
3121 break;
3122 case OP_FTCHR:
3123 if (S_ISCHR(PL_statcache.st_mode))
3124 RETPUSHYES;
3125 break;
3126 case OP_FTBLK:
3127 if (S_ISBLK(PL_statcache.st_mode))
3128 RETPUSHYES;
3129 break;
3130 case OP_FTFILE:
3131 if (S_ISREG(PL_statcache.st_mode))
3132 RETPUSHYES;
3133 break;
3134 case OP_FTDIR:
3135 if (S_ISDIR(PL_statcache.st_mode))
3136 RETPUSHYES;
3137 break;
3138 case OP_FTPIPE:
3139 if (S_ISFIFO(PL_statcache.st_mode))
3140 RETPUSHYES;
3141 break;
a0d0e21e 3142#ifdef S_ISUID
17ad201a
NC		 3143 case OP_FTSUID:
3144 if (PL_statcache.st_mode & S_ISUID)
3145 RETPUSHYES;
3146 break;
a0d0e21e 3147#endif
a0d0e21e 3148#ifdef S_ISGID
17ad201a
NC		 3149 case OP_FTSGID:
3150 if (PL_statcache.st_mode & S_ISGID)
3151 RETPUSHYES;
3152 break;
3153#endif
3154#ifdef S_ISVTX
3155 case OP_FTSVTX:
3156 if (PL_statcache.st_mode & S_ISVTX)
3157 RETPUSHYES;
3158 break;
a0d0e21e 3159#endif
17ad201a 3160 }
a0d0e21e
LW		 3161 RETPUSHNO;
3162}
3163
17ad201a 3164PP(pp_ftlink)
a0d0e21e 3165{
17ad201a 3166 I32 result = my_lstat();
39644a26 3167 dSP;
a0d0e21e
LW		 3168 if (result < 0)
3169 RETPUSHUNDEF;
17ad201a 3170 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e 3171 RETPUSHYES;
a0d0e21e
LW		 3172 RETPUSHNO;
3173}
3174
3175PP(pp_fttty)
3176{
39644a26 3177 dSP;
a0d0e21e
LW		 3178 int fd;
3179 GV *gv;
7a5fd60d 3180 SV *tmpsv = Nullsv;
fb73857a 3181
fbb0b3b3
RGS		 3182 STACKED_FTEST_CHECK;
3183
533c011a 3184 if (PL_op->op_flags & OPf_REF)
146174a9 3185 gv = cGVOP_gv;
fb73857a 3186 else if (isGV(TOPs))
3187 gv = (GV*)POPs;
3188 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3189 gv = (GV*)SvRV(POPs);
a0d0e21e 3190 else
7a5fd60d 3191 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3192
a0d0e21e 3193 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3194 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3195 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3196 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3197 if (isDIGIT(*tmps))
3198 fd = atoi(tmps);
3199 else
3200 RETPUSHUNDEF;
3201 }
a0d0e21e
LW		 3202 else
3203 RETPUSHUNDEF;
6ad3d225 3204 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3205 RETPUSHYES;
3206 RETPUSHNO;
3207}
3208
16d20bd9
AD		 3209#if defined(atarist) /* this will work with atariST. Configure will
3210 make guesses for other systems. */
3211# define FILE_base(f) ((f)->_base)
3212# define FILE_ptr(f) ((f)->_ptr)
3213# define FILE_cnt(f) ((f)->_cnt)
3214# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3215#endif
3216
3217PP(pp_fttext)
3218{
39644a26 3219 dSP;
a0d0e21e
LW		 3220 I32 i;
3221 I32 len;
3222 I32 odd = 0;
3223 STDCHAR tbuf[512];
3224 register STDCHAR *s;
3225 register IO *io;
5f05dabc 3226 register SV *sv;
3227 GV *gv;
146174a9 3228 PerlIO *fp;
a0d0e21e 3229
fbb0b3b3
RGS		 3230 STACKED_FTEST_CHECK;
3231
533c011a 3232 if (PL_op->op_flags & OPf_REF)
146174a9 3233 gv = cGVOP_gv;
5f05dabc 3234 else if (isGV(TOPs))
3235 gv = (GV*)POPs;
3236 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3237 gv = (GV*)SvRV(POPs);
3238 else
3239 gv = Nullgv;
3240
3241 if (gv) {
a0d0e21e 3242 EXTEND(SP, 1);
3280af22
NIS		 3243 if (gv == PL_defgv) {
3244 if (PL_statgv)
3245 io = GvIO(PL_statgv);
a0d0e21e 3246 else {
3280af22 3247 sv = PL_statname;
a0d0e21e
LW		 3248 goto really_filename;
3249 }
3250 }
3251 else {
3280af22
NIS		 3252 PL_statgv = gv;
3253 PL_laststatval = -1;
c69006e4 3254 sv_setpvn(PL_statname, "", 0);
3280af22 3255 io = GvIO(PL_statgv);
a0d0e21e
LW		 3256 }
3257 if (io && IoIFP(io)) {
5f05dabc 3258 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3259 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3260 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3261 if (PL_laststatval < 0)
5f05dabc 3262 RETPUSHUNDEF;
9cbac4c7 3263 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3264 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3265 RETPUSHNO;
3266 else
3267 RETPUSHYES;
9cbac4c7 3268 }
a20bf0c3 3269 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3270 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3271 if (i != EOF)
760ac839 3272 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3273 }
a20bf0c3 3274 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3275 RETPUSHYES;
a20bf0c3
JH		 3276 len = PerlIO_get_bufsiz(IoIFP(io));
3277 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3278 /* sfio can have large buffers - limit to 512 */
3279 if (len > 512)
3280 len = 512;
a0d0e21e
LW		 3281 }
3282 else {
2dd78f96 3283 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3284 gv = cGVOP_gv;
2dd78f96 3285 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3286 }
93189314 3287 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3288 RETPUSHUNDEF;
3289 }
3290 }
3291 else {
3292 sv = POPs;
5f05dabc 3293 really_filename:
3280af22 3294 PL_statgv = Nullgv;
5c9aa243 3295 PL_laststype = OP_STAT;
d5263905 3296 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3297 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3298 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3299 '\n'))
9014280d 3300 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3301 RETPUSHUNDEF;
3302 }
146174a9
CB		 3303 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3304 if (PL_laststatval < 0) {
3305 (void)PerlIO_close(fp);
5f05dabc 3306 RETPUSHUNDEF;
146174a9 3307 }
60382766 3308 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3309 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3310 (void)PerlIO_close(fp);
a0d0e21e 3311 if (len <= 0) {
533c011a 3312 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3313 RETPUSHNO; /* special case NFS directories */
3314 RETPUSHYES; /* null file is anything */
3315 }
3316 s = tbuf;
3317 }
3318
3319 /* now scan s to look for textiness */
4633a7c4 3320 /* XXX ASCII dependent code */
a0d0e21e 3321
146174a9
CB		 3322#if defined(DOSISH) || defined(USEMYBINMODE)
3323 /* ignore trailing ^Z on short files */
3324 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3325 --len;
3326#endif
3327
a0d0e21e
LW		 3328 for (i = 0; i < len; i++, s++) {
3329 if (!*s) { /* null never allowed in text */
3330 odd += len;
3331 break;
3332 }
9d116dd7 3333#ifdef EBCDIC
301e8125 3334 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3335 odd++;
3336#else
146174a9
CB		 3337 else if (*s & 128) {
3338#ifdef USE_LOCALE
2de3dbcc 3339 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3340 continue;
3341#endif
3342 /* utf8 characters don't count as odd */
fd400ab9 3343 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3344 int ulen = UTF8SKIP(s);
3345 if (ulen < len - i) {
3346 int j;
3347 for (j = 1; j < ulen; j++) {
fd400ab9 3348 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3349 goto not_utf8;
3350 }
3351 --ulen; /* loop does extra increment */
3352 s += ulen;
3353 i += ulen;
3354 continue;
3355 }
3356 }
3357 not_utf8:
3358 odd++;
146174a9 3359 }
a0d0e21e
LW		 3360 else if (*s < 32 &&
3361 *s != '\n' && *s != '\r' && *s != '\b' &&
3362 *s != '\t' && *s != '\f' && *s != 27)
3363 odd++;
9d116dd7 3364#endif
a0d0e21e
LW		 3365 }
3366
533c011a 3367 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3368 RETPUSHNO;
3369 else
3370 RETPUSHYES;
3371}
3372
a0d0e21e
LW		 3373/* File calls. */
3374
3375PP(pp_chdir)
3376{
39644a26 3377 dSP; dTARGET;
c4aca7d0 3378 const char *tmps = 0;
9a957fbc 3379 GV *gv = NULL;
a0d0e21e 3380
c4aca7d0 3381 if( MAXARG == 1 ) {
9a957fbc 3382 SV * const sv = POPs;
c4aca7d0
GA		 3383 if (SvTYPE(sv) == SVt_PVGV) {
3384 gv = (GV*)sv;
3385 }
3386 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3387 gv = (GV*)SvRV(sv);
3388 }
3389 else {
3390 tmps = SvPVx_nolen_const(sv);
3391 }
3392 }
35ae6b54 3393
c4aca7d0 3394 if( !gv && (!tmps || !*tmps) ) {
9a957fbc
AL		 3395 HV * const table = GvHVn(PL_envgv);
3396 SV **svp;
3397
3398 if ( (svp = hv_fetch(table, "HOME", 4, FALSE))
3399 || (svp = hv_fetch(table, "LOGDIR", 6, FALSE))
491527d0 3400#ifdef VMS
9a957fbc 3401 || (svp = hv_fetch(table, "SYS$LOGIN", 9, FALSE))
491527d0 3402#endif
35ae6b54
MS		 3403 )
3404 {
3405 if( MAXARG == 1 )
9014280d 3406 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3407 tmps = SvPV_nolen_const(*svp);
35ae6b54 3408 }
72f496dc 3409 else {
389ec635 3410 PUSHi(0);
b7ab37f8 3411 TAINT_PROPER("chdir");
389ec635
MS		 3412 RETURN;
3413 }
8ea155d1 3414 }
8ea155d1 3415
a0d0e21e 3416 TAINT_PROPER("chdir");
c4aca7d0
GA		 3417 if (gv) {
3418#ifdef HAS_FCHDIR
9a957fbc 3419 IO* const io = GvIO(gv);
c4aca7d0
GA		 3420 if (io) {
3421 if (IoIFP(io)) {
3422 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3423 }
3424 else if (IoDIRP(io)) {
3425#ifdef HAS_DIRFD
3426 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3427#else
0f1f2428 3428 DIE(aTHX_ PL_no_func, "dirfd");
c4aca7d0
GA		 3429#endif
3430 }
3431 else {
3432 PUSHi(0);
3433 }
3434 }
3435 else {
3436 PUSHi(0);
3437 }
3438#else
3439 DIE(aTHX_ PL_no_func, "fchdir");
3440#endif
3441 }
3442 else
b8ffc8df 3443 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3444#ifdef VMS
3445 /* Clear the DEFAULT element of ENV so we'll get the new value
3446 * in the future. */
6b88bc9c 3447 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3448#endif
a0d0e21e
LW		 3449 RETURN;
3450}
3451
3452PP(pp_chown)
3453{
76ffd3b9 3454 dSP; dMARK; dTARGET;
605b9385 3455 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
76ffd3b9 3456
a0d0e21e
LW		 3457 SP = MARK;
3458 PUSHi(value);
3459 RETURN;
a0d0e21e
LW		 3460}
3461
3462PP(pp_chroot)
3463{
a0d0e21e 3464#ifdef HAS_CHROOT
76ffd3b9 3465 dSP; dTARGET;
d05c1ba0 3466 char *tmps = POPpx;
a0d0e21e
LW		 3467 TAINT_PROPER("chroot");
3468 PUSHi( chroot(tmps) >= 0 );
3469 RETURN;
3470#else
cea2e8a9 3471 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3472#endif
3473}
3474
a0d0e21e
LW		 3475PP(pp_rename)
3476{
39644a26 3477 dSP; dTARGET;
a0d0e21e 3478 int anum;
e62f0680
NC		 3479 const char *tmps2 = POPpconstx;
3480 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3481 TAINT_PROPER("rename");
3482#ifdef HAS_RENAME
baed7233 3483 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3484#else
6b88bc9c 3485 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3486 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3487 anum = 1;
3488 else {
3654eb6c 3489 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3490 (void)UNLINK(tmps2);
3491 if (!(anum = link(tmps, tmps2)))
3492 anum = UNLINK(tmps);
3493 }
a0d0e21e
LW		 3494 }
3495#endif
3496 SETi( anum >= 0 );
3497 RETURN;
3498}
3499
ce6987d0 3500#if defined(HAS_LINK) || defined(HAS_SYMLINK)
a0d0e21e
LW		 3501PP(pp_link)
3502{
370f6000 3503 dSP; dTARGET;
ce6987d0
NC		 3504 const int op_type = PL_op->op_type;
3505 int result;
a0d0e21e 3506
ce6987d0
NC		 3507# ifndef HAS_LINK
3508 if (op_type == OP_LINK)
3509 DIE(aTHX_ PL_no_func, "link");
3510# endif
3511# ifndef HAS_SYMLINK
3512 if (op_type == OP_SYMLINK)
3513 DIE(aTHX_ PL_no_func, "symlink");
3514# endif
3515
3516 {
3517 const char *tmps2 = POPpconstx;
3518 const char *tmps = SvPV_nolen_const(TOPs);
3519 TAINT_PROPER(PL_op_desc[op_type]);
3520 result =
3521# if defined(HAS_LINK)
3522# if defined(HAS_SYMLINK)
3523 /* Both present - need to choose which. */
3524 (op_type == OP_LINK) ?
3525 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3526# else
3527 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3528 symlink(tmps, tmps2);
3529# endif
3530# else
3531# if defined(HAS_SYMLINK)
3532 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3533 PerlLIO_link(tmps, tmps2);
3534# endif
3535# endif
3536 }
3537
3538 SETi( result >= 0 );
a0d0e21e 3539 RETURN;
ce6987d0 3540}
a0d0e21e 3541#else
ce6987d0
NC		 3542PP(pp_link)
3543{
3544 /* Have neither. */
3545 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e 3546}
ce6987d0 3547#endif
a0d0e21e
LW		 3548
3549PP(pp_readlink)
3550{
76ffd3b9 3551 dSP;
a0d0e21e 3552#ifdef HAS_SYMLINK
76ffd3b9 3553 dTARGET;
10516c54 3554 const char *tmps;
46fc3d4c 3555 char buf[MAXPATHLEN];
a0d0e21e 3556 int len;
46fc3d4c 3557
fb73857a 3558#ifndef INCOMPLETE_TAINTS
3559 TAINT;
3560#endif
10516c54 3561 tmps = POPpconstx;
97dcea33 3562 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3563 EXTEND(SP, 1);
3564 if (len < 0)
3565 RETPUSHUNDEF;
3566 PUSHp(buf, len);
3567 RETURN;
3568#else
3569 EXTEND(SP, 1);
3570 RETSETUNDEF; /* just pretend it's a normal file */
3571#endif
3572}
3573
3574#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3575STATIC int
b464bac0 3576S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3577{
b464bac0 3578 char * const save_filename = filename;
1e422769 3579 char *cmdline;
3580 char *s;
760ac839 3581 PerlIO *myfp;
1e422769 3582 int anum = 1;
a0d0e21e 3583
a02a5408 3584 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
1e422769 3585 strcpy(cmdline, cmd);
3586 strcat(cmdline, " ");
3587 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3588 *s++ = '\\';
3589 *s++ = *filename++;
3590 }
3591 strcpy(s, " 2>&1");
6ad3d225 3592 myfp = PerlProc_popen(cmdline, "r");
1e422769 3593 Safefree(cmdline);
3594
a0d0e21e 3595 if (myfp) {
1e422769 3596 SV *tmpsv = sv_newmortal();
6b88bc9c 3597 /* Need to save/restore 'PL_rs' ?? */
760ac839 3598 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3599 (void)PerlProc_pclose(myfp);
a0d0e21e 3600 if (s != Nullch) {
1e422769 3601 int e;
3602 for (e = 1;
a0d0e21e 3603#ifdef HAS_SYS_ERRLIST
1e422769 3604 e <= sys_nerr
3605#endif
3606 ; e++)
3607 {
3608 /* you don't see this */
3609 char *errmsg =
3610#ifdef HAS_SYS_ERRLIST
3611 sys_errlist[e]
a0d0e21e 3612#else
1e422769 3613 strerror(e)
a0d0e21e 3614#endif
1e422769 3615 ;
3616 if (!errmsg)
3617 break;
3618 if (instr(s, errmsg)) {
3619 SETERRNO(e,0);
3620 return 0;
3621 }
a0d0e21e 3622 }
748a9306 3623 SETERRNO(0,0);
a0d0e21e
LW		 3624#ifndef EACCES
3625#define EACCES EPERM
3626#endif
1e422769 3627 if (instr(s, "cannot make"))
93189314 3628 SETERRNO(EEXIST,RMS_FEX);
1e422769 3629 else if (instr(s, "existing file"))
93189314 3630 SETERRNO(EEXIST,RMS_FEX);
1e422769 3631 else if (instr(s, "ile exists"))
93189314 3632 SETERRNO(EEXIST,RMS_FEX);
1e422769 3633 else if (instr(s, "non-exist"))
93189314 3634 SETERRNO(ENOENT,RMS_FNF);
1e422769 3635 else if (instr(s, "does not exist"))
93189314 3636 SETERRNO(ENOENT,RMS_FNF);
1e422769 3637 else if (instr(s, "not empty"))
93189314 3638 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3639 else if (instr(s, "cannot access"))
93189314 3640 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3641 else
93189314 3642 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3643 return 0;
3644 }
3645 else { /* some mkdirs return no failure indication */
6b88bc9c 3646 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3647 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3648 anum = !anum;
3649 if (anum)
748a9306 3650 SETERRNO(0,0);
a0d0e21e 3651 else
93189314 3652 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3653 }
3654 return anum;
3655 }
3656 else
3657 return 0;
3658}
3659#endif
3660
0c54f65b
RGS		 3661/* This macro removes trailing slashes from a directory name.
3662 * Different operating and file systems take differently to
3663 * trailing slashes. According to POSIX 1003.1 1996 Edition
3664 * any number of trailing slashes should be allowed.
3665 * Thusly we snip them away so that even non-conforming
3666 * systems are happy.
3667 * We should probably do this "filtering" for all
3668 * the functions that expect (potentially) directory names:
3669 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3670 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3671
5c144d81 3672#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3673 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3674 do { \
3675 (len)--; \
3676 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3677 (tmps) = savepvn((tmps), (len)); \
3678 (copy) = TRUE; \
3679 }
3680
a0d0e21e
LW		 3681PP(pp_mkdir)
3682{
39644a26 3683 dSP; dTARGET;
5a211162 3684 int mode;
a0d0e21e
LW		 3685#ifndef HAS_MKDIR
3686 int oldumask;
3687#endif
df25ddba 3688 STRLEN len;
5c144d81 3689 const char *tmps;
df25ddba 3690 bool copy = FALSE;
5a211162
GS		 3691
3692 if (MAXARG > 1)
3693 mode = POPi;
3694 else
3695 mode = 0777;
3696
0c54f65b 3697 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3698
3699 TAINT_PROPER("mkdir");
3700#ifdef HAS_MKDIR
b8ffc8df 3701 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3702#else
3703 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3704 oldumask = PerlLIO_umask(0);
3705 PerlLIO_umask(oldumask);
3706 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3707#endif
df25ddba
JH		 3708 if (copy)
3709 Safefree(tmps);
a0d0e21e
LW		 3710 RETURN;
3711}
3712
3713PP(pp_rmdir)
3714{
39644a26 3715 dSP; dTARGET;
0c54f65b 3716 STRLEN len;
5c144d81 3717 const char *tmps;
0c54f65b 3718 bool copy = FALSE;
a0d0e21e 3719
0c54f65b 3720 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3721 TAINT_PROPER("rmdir");
3722#ifdef HAS_RMDIR
b8ffc8df 3723 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3724#else
0c54f65b 3725 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3726#endif
0c54f65b
RGS		 3727 if (copy)
3728 Safefree(tmps);
a0d0e21e
LW		 3729 RETURN;
3730}
3731
3732/* Directory calls. */
3733
3734PP(pp_open_dir)
3735{
a0d0e21e 3736#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3737 dSP;
10516c54 3738 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3739 GV *gv = (GV*)POPs;
3740 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3741
3742 if (!io)
3743 goto nope;
3744
3745 if (IoDIRP(io))
6ad3d225 3746 PerlDir_close(IoDIRP(io));
b8ffc8df 3747 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3748 goto nope;
3749
3750 RETPUSHYES;
3751nope:
3752 if (!errno)
93189314 3753 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3754 RETPUSHUNDEF;
3755#else
cea2e8a9 3756 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3757#endif
3758}
3759
3760PP(pp_readdir)
3761{
34b7f128
AMS		 3762#if !defined(Direntry_t) || !defined(HAS_READDIR)
3763 DIE(aTHX_ PL_no_dir_func, "readdir");
3764#else
fd8cd3a3 3765#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3766 Direntry_t *readdir (DIR *);
a0d0e21e 3767#endif
34b7f128
AMS		 3768 dSP;
3769
3770 SV *sv;
f54cb97a 3771 const I32 gimme = GIMME;
34b7f128 3772 GV *gv = (GV *)POPs;
a0d0e21e 3773 register Direntry_t *dp;
a0d0e21e
LW		 3774 register IO *io = GvIOn(gv);
3775
3776 if (!io || !IoDIRP(io))
3777 goto nope;
3778
34b7f128
AMS		 3779 do {
3780 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3781 if (!dp)
3782 break;
a0d0e21e 3783#ifdef DIRNAMLEN
34b7f128 3784 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3785#else
34b7f128 3786 sv = newSVpv(dp->d_name, 0);
fb73857a 3787#endif
3788#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3789 if (!(IoFLAGS(io) & IOf_UNTAINT))
3790 SvTAINTED_on(sv);
a0d0e21e 3791#endif
34b7f128 3792 XPUSHs(sv_2mortal(sv));
a0d0e21e 3793 }
34b7f128
AMS		 3794 while (gimme == G_ARRAY);
3795
3796 if (!dp && gimme != G_ARRAY)
3797 goto nope;
3798
a0d0e21e
LW		 3799 RETURN;
3800
3801nope:
3802 if (!errno)
93189314 3803 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3804 if (GIMME == G_ARRAY)
3805 RETURN;
3806 else
3807 RETPUSHUNDEF;
a0d0e21e
LW		 3808#endif
3809}
3810
3811PP(pp_telldir)
3812{
a0d0e21e 3813#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3814 dVAR; dSP; dTARGET;
968dcd91
JH		 3815 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3816 /* XXX netbsd still seemed to.
3817 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3818 --JHI 1999-Feb-02 */
3819# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3820 long telldir (DIR *);
dfe9444c 3821# endif
a0d0e21e
LW		 3822 GV *gv = (GV*)POPs;
3823 register IO *io = GvIOn(gv);
3824
3825 if (!io || !IoDIRP(io))
3826 goto nope;
3827
6ad3d225 3828 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3829 RETURN;
3830nope:
3831 if (!errno)
93189314 3832 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3833 RETPUSHUNDEF;
3834#else
cea2e8a9 3835 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3836#endif
3837}
3838
3839PP(pp_seekdir)
3840{
a0d0e21e 3841#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3842 dSP;
a0d0e21e
LW		 3843 long along = POPl;
3844 GV *gv = (GV*)POPs;
3845 register IO *io = GvIOn(gv);
3846
3847 if (!io || !IoDIRP(io))
3848 goto nope;
3849
6ad3d225 3850 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3851
3852 RETPUSHYES;
3853nope:
3854 if (!errno)
93189314 3855 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3856 RETPUSHUNDEF;
3857#else
cea2e8a9 3858 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3859#endif
3860}
3861
3862PP(pp_rewinddir)
3863{
a0d0e21e 3864#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3865 dSP;
a0d0e21e
LW		 3866 GV *gv = (GV*)POPs;
3867 register IO *io = GvIOn(gv);
3868
3869 if (!io || !IoDIRP(io))
3870 goto nope;
3871
6ad3d225 3872 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3873 RETPUSHYES;
3874nope:
3875 if (!errno)
93189314 3876 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3877 RETPUSHUNDEF;
3878#else
cea2e8a9 3879 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3880#endif
3881}
3882
3883PP(pp_closedir)
3884{
a0d0e21e 3885#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3886 dSP;
a0d0e21e
LW		 3887 GV *gv = (GV*)POPs;
3888 register IO *io = GvIOn(gv);
3889
3890 if (!io || !IoDIRP(io))
3891 goto nope;
3892
3893#ifdef VOID_CLOSEDIR
6ad3d225 3894 PerlDir_close(IoDIRP(io));
a0d0e21e 3895#else
6ad3d225 3896 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3897 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3898 goto nope;
748a9306 3899 }
a0d0e21e
LW		 3900#endif
3901 IoDIRP(io) = 0;
3902
3903 RETPUSHYES;
3904nope:
3905 if (!errno)
93189314 3906 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3907 RETPUSHUNDEF;
3908#else
cea2e8a9 3909 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3910#endif
3911}
3912
3913/* Process control. */
3914
3915PP(pp_fork)
3916{
44a8e56a 3917#ifdef HAS_FORK
39644a26 3918 dSP; dTARGET;
761237fe 3919 Pid_t childpid;
a0d0e21e
LW		 3920 GV *tmpgv;
3921
3922 EXTEND(SP, 1);
45bc9206 3923 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3924 childpid = PerlProc_fork();
a0d0e21e
LW		 3925 if (childpid < 0)
3926 RETSETUNDEF;
3927 if (!childpid) {
306196c3
MS		 3928 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3929 SvREADONLY_off(GvSV(tmpgv));
146174a9 3930 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3931 SvREADONLY_on(GvSV(tmpgv));
3932 }
4d76a344
RGS		 3933#ifdef THREADS_HAVE_PIDS
3934 PL_ppid = (IV)getppid();
3935#endif
ca0c25f6 3936#ifdef PERL_USES_PL_PIDSTATUS
3280af22 3937 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
ca0c25f6 3938#endif
a0d0e21e
LW		 3939 }
3940 PUSHi(childpid);
3941 RETURN;
3942#else
146174a9 3943# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 3944 dSP; dTARGET;
146174a9
CB		 3945 Pid_t childpid;
3946
3947 EXTEND(SP, 1);
3948 PERL_FLUSHALL_FOR_CHILD;
3949 childpid = PerlProc_fork();
60fa28ff
GS		 3950 if (childpid == -1)
3951 RETSETUNDEF;
146174a9
CB		 3952 PUSHi(childpid);
3953 RETURN;
3954# else
0322a713 3955 DIE(aTHX_ PL_no_func, "fork");
146174a9 3956# endif
a0d0e21e
LW		 3957#endif
3958}
3959
3960PP(pp_wait)
3961{
301e8125 3962#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3963 dSP; dTARGET;
761237fe 3964 Pid_t childpid;
a0d0e21e 3965 int argflags;
a0d0e21e 3966
4ffa73a3
JH		 3967 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3968 childpid = wait4pid(-1, &argflags, 0);
3969 else {
3970 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3971 errno == EINTR) {
3972 PERL_ASYNC_CHECK();
3973 }
0a0ada86 3974 }
68a29c53
GS		 3975# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3976 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 3977 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
68a29c53 3978# else
2fbb330f 3979 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
68a29c53 3980# endif
44a8e56a 3981 XPUSHi(childpid);
a0d0e21e
LW		 3982 RETURN;
3983#else
0322a713 3984 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 3985#endif
3986}
3987
3988PP(pp_waitpid)
3989{
301e8125 3990#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 3991 dSP; dTARGET;
2ec0bfb3
SG		 3992 Pid_t pid;
3993 Pid_t result;
a0d0e21e
LW		 3994 int optype;
3995 int argflags;
a0d0e21e 3996
a0d0e21e 3997 optype = POPi;
2ec0bfb3 3998 pid = TOPi;
4ffa73a3 3999 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4000 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4001 else {
2ec0bfb3 4002 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4003 errno == EINTR) {
4004 PERL_ASYNC_CHECK();
4005 }
0a0ada86 4006 }
68a29c53
GS		 4007# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4008 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2fbb330f 4009 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
68a29c53 4010# else
2fbb330f 4011 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
68a29c53 4012# endif
2ec0bfb3 4013 SETi(result);
a0d0e21e
LW		 4014 RETURN;
4015#else
0322a713 4016 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4017#endif
4018}
4019
4020PP(pp_system)
4021{
39644a26 4022 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4023 I32 value;
76ffd3b9 4024 int result;
a0d0e21e 4025
bbd7eb8a
RD		 4026 if (PL_tainting) {
4027 TAINT_ENV();
4028 while (++MARK <= SP) {
10516c54 4029 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4030 if (PL_tainted)
bbd7eb8a
RD		 4031 break;
4032 }
4033 MARK = ORIGMARK;
5a445156 4034 TAINT_PROPER("system");
a0d0e21e 4035 }
45bc9206 4036 PERL_FLUSHALL_FOR_CHILD;
273b0206 4037#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4038 {
eb160463
GS		 4039 Pid_t childpid;
4040 int pp[2];
27da23d5 4041 I32 did_pipes = 0;
eb160463
GS		 4042
4043 if (PerlProc_pipe(pp) >= 0)
4044 did_pipes = 1;
4045 while ((childpid = PerlProc_fork()) == -1) {
4046 if (errno != EAGAIN) {
4047 value = -1;
4048 SP = ORIGMARK;
4049 PUSHi(value);
4050 if (did_pipes) {
4051 PerlLIO_close(pp[0]);
4052 PerlLIO_close(pp[1]);
4053 }
4054 RETURN;
4055 }
4056 sleep(5);
4057 }
4058 if (childpid > 0) {
4059 Sigsave_t ihand,qhand; /* place to save signals during system() */
4060 int status;
4061
4062 if (did_pipes)
4063 PerlLIO_close(pp[1]);
64ca3a65 4064#ifndef PERL_MICRO
8aad04aa
JH		 4065 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4066 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
64ca3a65 4067#endif
eb160463
GS		 4068 do {
4069 result = wait4pid(childpid, &status, 0);
4070 } while (result == -1 && errno == EINTR);
64ca3a65 4071#ifndef PERL_MICRO
eb160463
GS		 4072 (void)rsignal_restore(SIGINT, &ihand);
4073 (void)rsignal_restore(SIGQUIT, &qhand);
4074#endif
37038d91 4075 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
eb160463
GS		 4076 do_execfree(); /* free any memory child malloced on fork */
4077 SP = ORIGMARK;
4078 if (did_pipes) {
4079 int errkid;
4080 int n = 0, n1;
4081
4082 while (n < sizeof(int)) {
4083 n1 = PerlLIO_read(pp[0],
4084 (void*)(((char*)&errkid)+n),
4085 (sizeof(int)) - n);
4086 if (n1 <= 0)
4087 break;
4088 n += n1;
4089 }
4090 PerlLIO_close(pp[0]);
4091 if (n) { /* Error */
4092 if (n != sizeof(int))
4093 DIE(aTHX_ "panic: kid popen errno read");
4094 errno = errkid; /* Propagate errno from kid */
37038d91 4095 STATUS_NATIVE_CHILD_SET(-1);
eb160463
GS		 4096 }
4097 }
4098 PUSHi(STATUS_CURRENT);
4099 RETURN;
4100 }
4101 if (did_pipes) {
4102 PerlLIO_close(pp[0]);
d5a9bfb0 4103#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4104 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4105#endif
eb160463 4106 }
e0a1f643
JH		 4107 if (PL_op->op_flags & OPf_STACKED) {
4108 SV *really = *++MARK;
4109 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4110 }
4111 else if (SP - MARK != 1)
4112 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4113 else {
8c074e2a 4114 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4115 }
4116 PerlProc__exit(-1);
d5a9bfb0 4117 }
c3293030 4118#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4119 PL_statusvalue = 0;
4120 result = 0;
911d147d 4121 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4122 SV *really = *++MARK;
a0fd4948 4123# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4124 value = (I32)do_aspawn(really, MARK, SP);
4125# else
c5be433b 4126 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4127# endif
a0d0e21e 4128 }
54725af6 4129 else if (SP - MARK != 1) {
a0fd4948 4130# if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
54725af6
GS		 4131 value = (I32)do_aspawn(Nullsv, MARK, SP);
4132# else
c5be433b 4133 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4134# endif
4135 }
a0d0e21e 4136 else {
8c074e2a 4137 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4138 }
922b1888
GS		 4139 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4140 result = 1;
2fbb330f 4141 STATUS_NATIVE_CHILD_SET(value);
a0d0e21e
LW		 4142 do_execfree();
4143 SP = ORIGMARK;
922b1888 4144 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4145#endif /* !FORK or VMS */
4146 RETURN;
4147}
4148
4149PP(pp_exec)
4150{
39644a26 4151 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4152 I32 value;
4153
bbd7eb8a
RD		 4154 if (PL_tainting) {
4155 TAINT_ENV();
4156 while (++MARK <= SP) {
10516c54 4157 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4158 if (PL_tainted)
bbd7eb8a
RD		 4159 break;
4160 }
4161 MARK = ORIGMARK;
5a445156 4162 TAINT_PROPER("exec");
bbd7eb8a 4163 }
45bc9206 4164 PERL_FLUSHALL_FOR_CHILD;
533c011a 4165 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4166 SV *really = *++MARK;
4167 value = (I32)do_aexec(really, MARK, SP);
4168 }
4169 else if (SP - MARK != 1)
4170#ifdef VMS
4171 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4172#else
092bebab
JH		 4173# ifdef __OPEN_VM
4174 {
c5be433b 4175 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4176 value = 0;
4177 }
4178# else
a0d0e21e 4179 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4180# endif
a0d0e21e
LW		 4181#endif
4182 else {
a0d0e21e 4183#ifdef VMS
8c074e2a 4184 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4185#else
092bebab 4186# ifdef __OPEN_VM
8c074e2a 4187 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4188 value = 0;
4189# else
8c074e2a 4190 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4191# endif
a0d0e21e
LW		 4192#endif
4193 }
146174a9 4194
a0d0e21e
LW		 4195 SP = ORIGMARK;
4196 PUSHi(value);
4197 RETURN;
4198}
4199
a0d0e21e
LW		 4200PP(pp_getppid)
4201{
4202#ifdef HAS_GETPPID
39644a26 4203 dSP; dTARGET;
4d76a344 4204# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4205 if (PL_ppid != 1 && getppid() == 1)
4206 /* maybe the parent process has died. Refresh ppid cache */
4207 PL_ppid = 1;
4d76a344
RGS		 4208 XPUSHi( PL_ppid );
4209# else
a0d0e21e 4210 XPUSHi( getppid() );
4d76a344 4211# endif
a0d0e21e
LW		 4212 RETURN;
4213#else
cea2e8a9 4214 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4215#endif
4216}
4217
4218PP(pp_getpgrp)
4219{
4220#ifdef HAS_GETPGRP
39644a26 4221 dSP; dTARGET;
d8a83dd3 4222 Pid_t pid;
9853a804 4223 Pid_t pgrp;
a0d0e21e
LW		 4224
4225 if (MAXARG < 1)
4226 pid = 0;
4227 else
4228 pid = SvIVx(POPs);
c3293030 4229#ifdef BSD_GETPGRP
9853a804 4230 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4231#else
146174a9 4232 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4233 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4234 pgrp = getpgrp();
a0d0e21e 4235#endif
9853a804 4236 XPUSHi(pgrp);
a0d0e21e
LW		 4237 RETURN;
4238#else
cea2e8a9 4239 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4240#endif
4241}
4242
4243PP(pp_setpgrp)
4244{
4245#ifdef HAS_SETPGRP
39644a26 4246 dSP; dTARGET;
d8a83dd3
JH		 4247 Pid_t pgrp;
4248 Pid_t pid;
a0d0e21e
LW		 4249 if (MAXARG < 2) {
4250 pgrp = 0;
4251 pid = 0;
4252 }
4253 else {
4254 pgrp = POPi;
4255 pid = TOPi;
4256 }
4257
4258 TAINT_PROPER("setpgrp");
c3293030
IZ		 4259#ifdef BSD_SETPGRP
4260 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4261#else
146174a9
CB		 4262 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4263 || (pid != 0 && pid != PerlProc_getpid()))
4264 {
4265 DIE(aTHX_ "setpgrp can't take arguments");
4266 }
a0d0e21e
LW		 4267 SETi( setpgrp() >= 0 );
4268#endif /* USE_BSDPGRP */
4269 RETURN;
4270#else
cea2e8a9 4271 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4272#endif
4273}
4274
4275PP(pp_getpriority)
4276{
a0d0e21e 4277#ifdef HAS_GETPRIORITY
9cad6237 4278 dSP; dTARGET;
d05c1ba0
JH		 4279 int who = POPi;
4280 int which = TOPi;
a0d0e21e
LW		 4281 SETi( getpriority(which, who) );
4282 RETURN;
4283#else
cea2e8a9 4284 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4285#endif
4286}
4287
4288PP(pp_setpriority)
4289{
a0d0e21e 4290#ifdef HAS_SETPRIORITY
9cad6237 4291 dSP; dTARGET;
d05c1ba0
JH		 4292 int niceval = POPi;
4293 int who = POPi;
4294 int which = TOPi;
a0d0e21e
LW		 4295 TAINT_PROPER("setpriority");
4296 SETi( setpriority(which, who, niceval) >= 0 );
4297 RETURN;
4298#else
cea2e8a9 4299 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4300#endif
4301}
4302
4303/* Time calls. */
4304
4305PP(pp_time)
4306{
39644a26 4307 dSP; dTARGET;
cbdc8872 4308#ifdef BIG_TIME
4309 XPUSHn( time(Null(Time_t*)) );
4310#else
a0d0e21e 4311 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4312#endif
a0d0e21e
LW		 4313 RETURN;
4314}
4315
a0d0e21e
LW		 4316PP(pp_tms)
4317{
9cad6237 4318#ifdef HAS_TIMES
39644a26 4319 dSP;
a0d0e21e 4320 EXTEND(SP, 4);
a0d0e21e 4321#ifndef VMS
3280af22 4322 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4323#else
6b88bc9c 4324 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4325 /* struct tms, though same data */
4326 /* is returned. */
a0d0e21e
LW		 4327#endif
4328
5311654c 4329 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4330 if (GIMME == G_ARRAY) {
5311654c
JH		 4331 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4332 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4333 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4334 }
4335 RETURN;
9cad6237 4336#else
2f42fcb0
JH		 4337# ifdef PERL_MICRO
4338 dSP;
4339 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4340 EXTEND(SP, 4);
4341 if (GIMME == G_ARRAY) {
4342 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4343 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4344 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4345 }
4346 RETURN;
4347# else
9cad6237 4348 DIE(aTHX_ "times not implemented");
2f42fcb0 4349# endif
55497cff 4350#endif /* HAS_TIMES */
a0d0e21e
LW		 4351}
4352
a4323dee 4353#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4354static struct tm *S_my_localtime (pTHX_ Time_t *tp)
a4323dee
MB		 4355{
4356 auto time_t T;
4357 auto struct tm *P;
4358
4359 /* No workarounds in the valid range */
4360 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4361 return (localtime (tp));
4362
4363 /* This edge case is to workaround the undefined behaviour, where the
4364 * TIMEZONE makes the time go beyond the defined range.
4365 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4366 * If there is a negative offset in TZ, like MET-1METDST, some broken
4367 * implementations of localtime () (like AIX 5.2) barf with bogus
4368 * return values:
4369 * 0x7fffffff gmtime 2038-01-19 03:14:07
4370 * 0x7fffffff localtime 1901-12-13 21:45:51
4371 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4372 * 0x3c19137f gmtime 2001-12-13 20:45:51
4373 * 0x3c19137f localtime 2001-12-13 21:45:51
4374 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4375 * Given that legal timezones are typically between GMT-12 and GMT+12
4376 * we turn back the clock 23 hours before calling the localtime
4377 * function, and add those to the return value. This will never cause
3574fba9 4378 * day wrapping problems, since the edge case is Tue Jan *19*
a4323dee
MB		 4379 */
4380 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4381 P = localtime (&T);
4382 P->tm_hour += 23;
4383 if (P->tm_hour >= 24) {
4384 P->tm_hour -= 24;
3574fba9
CW		 4385 P->tm_mday++; /* 18 -> 19 */
4386 P->tm_wday++; /* Mon -> Tue */
4387 P->tm_yday++; /* 18 -> 19 */
a4323dee
MB		 4388 }
4389 return (P);
4390} /* S_my_localtime */
4391#endif
4392
a0d0e21e
LW		 4393PP(pp_gmtime)
4394{
39644a26 4395 dSP;
a0d0e21e 4396 Time_t when;
bfed75c6 4397 const struct tm *tmbuf;
27da23d5
JH		 4398 static const char * const dayname[] =
4399 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4400 static const char * const monname[] =
4401 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4402 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4403
4404 if (MAXARG < 1)
4405 (void)time(&when);
4406 else
cbdc8872 4407#ifdef BIG_TIME
4408 when = (Time_t)SvNVx(POPs);
4409#else
a0d0e21e 4410 when = (Time_t)SvIVx(POPs);
cbdc8872 4411#endif
a0d0e21e 4412
533c011a 4413 if (PL_op->op_type == OP_LOCALTIME)
a4323dee 4414#ifdef LOCALTIME_EDGECASE_BROKEN
89261a6c 4415 tmbuf = S_my_localtime(aTHX_ &when);
a4323dee 4416#else
a0d0e21e 4417 tmbuf = localtime(&when);
a4323dee 4418#endif
a0d0e21e
LW		 4419 else
4420 tmbuf = gmtime(&when);
4421
a0d0e21e 4422 if (GIMME != G_ARRAY) {
46fc3d4c 4423 SV *tsv;
9a5ff6d9
AB		 4424 EXTEND(SP, 1);
4425 EXTEND_MORTAL(1);
a0d0e21e
LW		 4426 if (!tmbuf)
4427 RETPUSHUNDEF;
be28567c 4428 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4429 dayname[tmbuf->tm_wday],
4430 monname[tmbuf->tm_mon],
be28567c
GS		 4431 tmbuf->tm_mday,
4432 tmbuf->tm_hour,
4433 tmbuf->tm_min,
4434 tmbuf->tm_sec,
4435 tmbuf->tm_year + 1900);
46fc3d4c 4436 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4437 }
4438 else if (tmbuf) {
9a5ff6d9
AB		 4439 EXTEND(SP, 9);
4440 EXTEND_MORTAL(9);
4441 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4442 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4443 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4444 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4445 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4446 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4447 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4448 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4449 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4450 }
4451 RETURN;
4452}
4453
4454PP(pp_alarm)
4455{
9cad6237 4456#ifdef HAS_ALARM
39644a26 4457 dSP; dTARGET;
a0d0e21e 4458 int anum;
a0d0e21e
LW		 4459 anum = POPi;
4460 anum = alarm((unsigned int)anum);
4461 EXTEND(SP, 1);
4462 if (anum < 0)
4463 RETPUSHUNDEF;
c6419e06 4464 PUSHi(anum);
a0d0e21e
LW		 4465 RETURN;
4466#else
0322a713 4467 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4468#endif
4469}
4470
4471PP(pp_sleep)
4472{
39644a26 4473 dSP; dTARGET;
a0d0e21e
LW		 4474 I32 duration;
4475 Time_t lasttime;
4476 Time_t when;
4477
4478 (void)time(&lasttime);
4479 if (MAXARG < 1)
76e3520e 4480 PerlProc_pause();
a0d0e21e
LW		 4481 else {
4482 duration = POPi;
76e3520e 4483 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4484 }
4485 (void)time(&when);
4486 XPUSHi(when - lasttime);
4487 RETURN;
4488}
4489
4490/* Shared memory. */
4491
a0d0e21e
LW		 4492PP(pp_shmwrite)
4493{
4494#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4495 dSP; dMARK; dTARGET;
533c011a 4496 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4497 SP = MARK;
4498 PUSHi(value);
4499 RETURN;
4500#else
cea2e8a9 4501 return pp_semget();
a0d0e21e
LW		 4502#endif
4503}
4504
4505/* Message passing. */
4506
a0d0e21e
LW		 4507PP(pp_msgsnd)
4508{
4509#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4510 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4511 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4512 SP = MARK;
4513 PUSHi(value);
4514 RETURN;
4515#else
cea2e8a9 4516 return pp_semget();
a0d0e21e
LW		 4517#endif
4518}
4519
4520PP(pp_msgrcv)
4521{
4522#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4523 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4524 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4525 SP = MARK;
4526 PUSHi(value);
4527 RETURN;
4528#else
cea2e8a9 4529 return pp_semget();
a0d0e21e
LW		 4530#endif
4531}
4532
4533/* Semaphores. */
4534
4535PP(pp_semget)
4536{
4537#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4538 dSP; dMARK; dTARGET;
533c011a 4539 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4540 SP = MARK;
4541 if (anum == -1)
4542 RETPUSHUNDEF;
4543 PUSHi(anum);
4544 RETURN;
4545#else
cea2e8a9 4546 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4547#endif
4548}
4549
4550PP(pp_semctl)
4551{
4552#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4553 dSP; dMARK; dTARGET;
533c011a 4554 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4555 SP = MARK;
4556 if (anum == -1)
4557 RETSETUNDEF;
4558 if (anum != 0) {
4559 PUSHi(anum);
4560 }
4561 else {
8903cb82 4562 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4563 }
4564 RETURN;
4565#else
cea2e8a9 4566 return pp_semget();
a0d0e21e
LW		 4567#endif
4568}
4569
4570PP(pp_semop)
4571{
4572#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4573 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4574 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4575 SP = MARK;
4576 PUSHi(value);
4577 RETURN;
4578#else
cea2e8a9 4579 return pp_semget();
a0d0e21e
LW		 4580#endif
4581}
4582
4583/* Get system info. */
4584
a0d0e21e
LW		 4585PP(pp_ghostent)
4586{
693762b4 4587#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4588 dSP;
533c011a 4589 I32 which = PL_op->op_type;
a0d0e21e
LW		 4590 register char **elem;
4591 register SV *sv;
dc45a647 4592#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4593 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4594 struct hostent *gethostbyname(Netdb_name_t);
4595 struct hostent *gethostent(void);
a0d0e21e
LW		 4596#endif
4597 struct hostent *hent;
4598 unsigned long len;
4599
4600 EXTEND(SP, 10);
edd309b7 4601 if (which == OP_GHBYNAME) {
dc45a647 4602#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4603 char* name = POPpbytex;
4604 hent = PerlSock_gethostbyname(name);
dc45a647 4605#else
cea2e8a9 4606 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4607#endif
edd309b7 4608 }
a0d0e21e 4609 else if (which == OP_GHBYADDR) {
dc45a647 4610#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4611 int addrtype = POPi;
748a9306 4612 SV *addrsv = POPs;
a0d0e21e 4613 STRLEN addrlen;
595ae481 4614 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4615
4599a1de 4616 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4617#else
cea2e8a9 4618 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4619#endif
a0d0e21e
LW		 4620 }
4621 else
4622#ifdef HAS_GETHOSTENT
6ad3d225 4623 hent = PerlSock_gethostent();
a0d0e21e 4624#else
cea2e8a9 4625 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4626#endif
4627
4628#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4629 if (!hent) {
4630#ifdef USE_REENTRANT_API
4631# ifdef USE_GETHOSTENT_ERRNO
4632 h_errno = PL_reentrant_buffer->_gethostent_errno;
4633# endif
4634#endif
37038d91 4635 STATUS_UNIX_SET(h_errno);
10bc17b6 4636 }
a0d0e21e
LW		 4637#endif
4638
4639 if (GIMME != G_ARRAY) {
4640 PUSHs(sv = sv_newmortal());
4641 if (hent) {
4642 if (which == OP_GHBYNAME) {
fd0af264 4643 if (hent->h_addr)
4644 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4645 }
4646 else
4647 sv_setpv(sv, (char*)hent->h_name);
4648 }
4649 RETURN;
4650 }
4651
4652 if (hent) {
3280af22 4653 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4654 sv_setpv(sv, (char*)hent->h_name);
3280af22 4655 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4656 for (elem = hent->h_aliases; elem && *elem; elem++) {
4657 sv_catpv(sv, *elem);
4658 if (elem[1])
4659 sv_catpvn(sv, " ", 1);
4660 }
3280af22 4661 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4662 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4663 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4664 len = hent->h_length;
1e422769 4665 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4666#ifdef h_addr
4667 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4668 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4669 sv_setpvn(sv, *elem, len);
4670 }
4671#else
6b88bc9c 4672 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4673 if (hent->h_addr)
4674 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4675#endif /* h_addr */
4676 }
4677 RETURN;
4678#else
cea2e8a9 4679 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4680#endif
4681}
4682
a0d0e21e
LW		 4683PP(pp_gnetent)
4684{
693762b4 4685#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4686 dSP;
533c011a 4687 I32 which = PL_op->op_type;
a0d0e21e
LW		 4688 register char **elem;
4689 register SV *sv;
dc45a647 4690#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4691 struct netent *getnetbyaddr(Netdb_net_t, int);
4692 struct netent *getnetbyname(Netdb_name_t);
4693 struct netent *getnetent(void);
8ac85365 4694#endif
a0d0e21e
LW		 4695 struct netent *nent;
4696
edd309b7 4697 if (which == OP_GNBYNAME){
dc45a647 4698#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4699 char *name = POPpbytex;
4700 nent = PerlSock_getnetbyname(name);
dc45a647 4701#else
cea2e8a9 4702 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4703#endif
edd309b7 4704 }
a0d0e21e 4705 else if (which == OP_GNBYADDR) {
dc45a647 4706#ifdef HAS_GETNETBYADDR
a0d0e21e 4707 int addrtype = POPi;
3bb7c1b4 4708 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4709 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4710#else
cea2e8a9 4711 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4712#endif
a0d0e21e
LW		 4713 }
4714 else
dc45a647 4715#ifdef HAS_GETNETENT
76e3520e 4716 nent = PerlSock_getnetent();
dc45a647 4717#else
cea2e8a9 4718 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4719#endif
a0d0e21e 4720
10bc17b6
JH		 4721#ifdef HOST_NOT_FOUND
4722 if (!nent) {
4723#ifdef USE_REENTRANT_API
4724# ifdef USE_GETNETENT_ERRNO
4725 h_errno = PL_reentrant_buffer->_getnetent_errno;
4726# endif
4727#endif
37038d91 4728 STATUS_UNIX_SET(h_errno);
10bc17b6
JH		 4729 }
4730#endif
4731
a0d0e21e
LW		 4732 EXTEND(SP, 4);
4733 if (GIMME != G_ARRAY) {
4734 PUSHs(sv = sv_newmortal());
4735 if (nent) {
4736 if (which == OP_GNBYNAME)
1e422769 4737 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4738 else
4739 sv_setpv(sv, nent->n_name);
4740 }
4741 RETURN;
4742 }
4743
4744 if (nent) {
3280af22 4745 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4746 sv_setpv(sv, nent->n_name);
3280af22 4747 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4748 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4749 sv_catpv(sv, *elem);
4750 if (elem[1])
4751 sv_catpvn(sv, " ", 1);
4752 }
3280af22 4753 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4754 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4755 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4756 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4757 }
4758
4759 RETURN;
4760#else
cea2e8a9 4761 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4762#endif
4763}
4764
a0d0e21e
LW		 4765PP(pp_gprotoent)
4766{
693762b4 4767#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4768 dSP;
533c011a 4769 I32 which = PL_op->op_type;
a0d0e21e 4770 register char **elem;
301e8125 4771 register SV *sv;
dc45a647 4772#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4773 struct protoent *getprotobyname(Netdb_name_t);
4774 struct protoent *getprotobynumber(int);
4775 struct protoent *getprotoent(void);
8ac85365 4776#endif
a0d0e21e
LW		 4777 struct protoent *pent;
4778
edd309b7 4779 if (which == OP_GPBYNAME) {
e5c9fcd0 4780#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4781 char* name = POPpbytex;
4782 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4783#else
cea2e8a9 4784 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4785#endif
edd309b7
JH		 4786 }
4787 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4788#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4789 int number = POPi;
4790 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4791#else
edd309b7 4792 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4793#endif
edd309b7 4794 }
a0d0e21e 4795 else
e5c9fcd0 4796#ifdef HAS_GETPROTOENT
6ad3d225 4797 pent = PerlSock_getprotoent();
e5c9fcd0 4798#else
cea2e8a9 4799 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4800#endif
a0d0e21e
LW		 4801
4802 EXTEND(SP, 3);
4803 if (GIMME != G_ARRAY) {
4804 PUSHs(sv = sv_newmortal());
4805 if (pent) {
4806 if (which == OP_GPBYNAME)
1e422769 4807 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4808 else
4809 sv_setpv(sv, pent->p_name);
4810 }
4811 RETURN;
4812 }
4813
4814 if (pent) {
3280af22 4815 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4816 sv_setpv(sv, pent->p_name);
3280af22 4817 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4818 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4819 sv_catpv(sv, *elem);
4820 if (elem[1])
4821 sv_catpvn(sv, " ", 1);
4822 }
3280af22 4823 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4824 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4825 }
4826
4827 RETURN;
4828#else
cea2e8a9 4829 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4830#endif
4831}
4832
a0d0e21e
LW		 4833PP(pp_gservent)
4834{
693762b4 4835#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4836 dSP;
533c011a 4837 I32 which = PL_op->op_type;
a0d0e21e
LW		 4838 register char **elem;
4839 register SV *sv;
dc45a647 4840#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4841 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4842 struct servent *getservbyport(int, Netdb_name_t);
4843 struct servent *getservent(void);
8ac85365 4844#endif
a0d0e21e
LW		 4845 struct servent *sent;
4846
4847 if (which == OP_GSBYNAME) {
dc45a647 4848#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4849 char *proto = POPpbytex;
4850 char *name = POPpbytex;
a0d0e21e
LW		 4851
4852 if (proto && !*proto)
4853 proto = Nullch;
4854
6ad3d225 4855 sent = PerlSock_getservbyname(name, proto);
dc45a647 4856#else
cea2e8a9 4857 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4858#endif
a0d0e21e
LW		 4859 }
4860 else if (which == OP_GSBYPORT) {
dc45a647 4861#ifdef HAS_GETSERVBYPORT
42e0c139 4862 char *proto = POPpbytex;
eb160463 4863 unsigned short port = (unsigned short)POPu;
a0d0e21e 4864
2b872cca
SR		 4865 if (proto && !*proto)
4866 proto = Nullch;
4867
36477c24 4868#ifdef HAS_HTONS
6ad3d225 4869 port = PerlSock_htons(port);
36477c24 4870#endif
6ad3d225 4871 sent = PerlSock_getservbyport(port, proto);
dc45a647 4872#else
cea2e8a9 4873 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 4874#endif
a0d0e21e
LW		 4875 }
4876 else
e5c9fcd0 4877#ifdef HAS_GETSERVENT
6ad3d225 4878 sent = PerlSock_getservent();
e5c9fcd0 4879#else
cea2e8a9 4880 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 4881#endif
a0d0e21e
LW		 4882
4883 EXTEND(SP, 4);
4884 if (GIMME != G_ARRAY) {
4885 PUSHs(sv = sv_newmortal());
4886 if (sent) {
4887 if (which == OP_GSBYNAME) {
4888#ifdef HAS_NTOHS
6ad3d225 4889 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4890#else
1e422769 4891 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 4892#endif
4893 }
4894 else
4895 sv_setpv(sv, sent->s_name);
4896 }
4897 RETURN;
4898 }
4899
4900 if (sent) {
3280af22 4901 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4902 sv_setpv(sv, sent->s_name);
3280af22 4903 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4904 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4905 sv_catpv(sv, *elem);
4906 if (elem[1])
4907 sv_catpvn(sv, " ", 1);
4908 }
3280af22 4909 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4910#ifdef HAS_NTOHS
76e3520e 4911 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 4912#else
1e422769 4913 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 4914#endif
3280af22 4915 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4916 sv_setpv(sv, sent->s_proto);
4917 }
4918
4919 RETURN;
4920#else
cea2e8a9 4921 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 4922#endif
4923}
4924
4925PP(pp_shostent)
4926{
693762b4 4927#ifdef HAS_SETHOSTENT
9cad6237 4928 dSP;
76e3520e 4929 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 4930 RETSETYES;
4931#else
cea2e8a9 4932 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 4933#endif
4934}
4935
4936PP(pp_snetent)
4937{
693762b4 4938#ifdef HAS_SETNETENT
9cad6237 4939 dSP;
76e3520e 4940 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 4941 RETSETYES;
4942#else
cea2e8a9 4943 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 4944#endif
4945}
4946
4947PP(pp_sprotoent)
4948{
693762b4 4949#ifdef HAS_SETPROTOENT
9cad6237 4950 dSP;
76e3520e 4951 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 4952 RETSETYES;
4953#else
cea2e8a9 4954 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 4955#endif
4956}
4957
4958PP(pp_sservent)
4959{
693762b4 4960#ifdef HAS_SETSERVENT
9cad6237 4961 dSP;
76e3520e 4962 PerlSock_setservent(TOPi);
a0d0e21e
LW		 4963 RETSETYES;
4964#else
cea2e8a9 4965 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 4966#endif
4967}
4968
4969PP(pp_ehostent)
4970{
693762b4 4971#ifdef HAS_ENDHOSTENT
9cad6237 4972 dSP;
76e3520e 4973 PerlSock_endhostent();
924508f0 4974 EXTEND(SP,1);
a0d0e21e
LW		 4975 RETPUSHYES;
4976#else
cea2e8a9 4977 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 4978#endif
4979}
4980
4981PP(pp_enetent)
4982{
693762b4 4983#ifdef HAS_ENDNETENT
9cad6237 4984 dSP;
76e3520e 4985 PerlSock_endnetent();
924508f0 4986 EXTEND(SP,1);
a0d0e21e
LW		 4987 RETPUSHYES;
4988#else
cea2e8a9 4989 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 4990#endif
4991}
4992
4993PP(pp_eprotoent)
4994{
693762b4 4995#ifdef HAS_ENDPROTOENT
9cad6237 4996 dSP;
76e3520e 4997 PerlSock_endprotoent();
924508f0 4998 EXTEND(SP,1);
a0d0e21e
LW		 4999 RETPUSHYES;
5000#else
cea2e8a9 5001 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5002#endif
5003}
5004
5005PP(pp_eservent)
5006{
693762b4 5007#ifdef HAS_ENDSERVENT
9cad6237 5008 dSP;
76e3520e 5009 PerlSock_endservent();
924508f0 5010 EXTEND(SP,1);
a0d0e21e
LW		 5011 RETPUSHYES;
5012#else
cea2e8a9 5013 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5014#endif
5015}
5016
a0d0e21e
LW		 5017PP(pp_gpwent)
5018{
0994c4d0 5019#ifdef HAS_PASSWD
9cad6237 5020 dSP;
533c011a 5021 I32 which = PL_op->op_type;
a0d0e21e 5022 register SV *sv;
e3aefe8d 5023 struct passwd *pwent = NULL;
301e8125 5024 /*
bcf53261
JH		 5025 * We currently support only the SysV getsp* shadow password interface.
5026 * The interface is declared in <shadow.h> and often one needs to link
5027 * with -lsecurity or some such.
5028 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5029 * (and SCO?)
5030 *
5031 * AIX getpwnam() is clever enough to return the encrypted password
5032 * only if the caller (euid?) is root.
5033 *
e549f1c5 5034 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5035 * seem to contain more than one interface for accessing the shadow
5036 * password databases, possibly for compatibility reasons.
3813c136 5037 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5038 * are much more complicated, but also very similar to each other.
5039 *
5040 * <sys/types.h>
5041 * <sys/security.h>
5042 * <prot.h>
5043 * struct pr_passwd *getprpw*();
5044 * The password is in
3813c136
JH		 5045 * char getprpw*(...).ufld.fd_encrypt[]
5046 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5047 *
5048 * <sys/types.h>
5049 * <sys/security.h>
5050 * <prot.h>
5051 * struct es_passwd *getespw*();
5052 * The password is in
5053 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5054 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5055 *
e1920a95 5056 * <userpw.h> (AIX)
e549f1c5
JH		 5057 * struct userpw *getuserpw();
5058 * The password is in
5059 * char *(getuserpw(...)).spw_upw_passwd
5060 * (but the de facto standard getpwnam() should work okay)
5061 *
3813c136 5062 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5063 *
5064 * In HP-UX for getprpw*() the manual page claims that one should include
5065 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5066 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5067 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5068 *
5069 * Note that <sys/security.h> is already probed for, but currently
5070 * it is only included in special cases.
301e8125 5071 *
bcf53261
JH		 5072 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5073 * be preferred interface, even though also the getprpw*() interface
5074 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5075 * One also needs to call set_auth_parameters() in main() before
5076 * doing anything else, whether one is using getespw*() or getprpw*().
5077 *
5078 * Note that accessing the shadow databases can be magnitudes
5079 * slower than accessing the standard databases.
bcf53261
JH		 5080 *
5081 * --jhi
5082 */
a0d0e21e 5083
9e5f0c48
JH		 5084# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5085 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5086 * the pw_comment is left uninitialized. */
5087 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5088# endif
5089
e3aefe8d
JH		 5090 switch (which) {
5091 case OP_GPWNAM:
edd309b7
JH		 5092 {
5093 char* name = POPpbytex;
5094 pwent = getpwnam(name);
5095 }
5096 break;
e3aefe8d 5097 case OP_GPWUID:
edd309b7
JH		 5098 {
5099 Uid_t uid = POPi;
5100 pwent = getpwuid(uid);
5101 }
e3aefe8d
JH		 5102 break;
5103 case OP_GPWENT:
1883634f 5104# ifdef HAS_GETPWENT
e3aefe8d 5105 pwent = getpwent();
faea9016
IRC		 5106#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5107 if (pwent) pwent = getpwnam(pwent->pw_name);
5108#endif
1883634f 5109# else
a45d1c96 5110 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5111# endif
e3aefe8d
JH		 5112 break;
5113 }
8c0bfa08 5114
a0d0e21e
LW		 5115 EXTEND(SP, 10);
5116 if (GIMME != G_ARRAY) {
5117 PUSHs(sv = sv_newmortal());
5118 if (pwent) {
5119 if (which == OP_GPWNAM)
1883634f 5120# if Uid_t_sign <= 0
1e422769 5121 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5122# else
23dcd6c8 5123 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5124# endif
a0d0e21e
LW		 5125 else
5126 sv_setpv(sv, pwent->pw_name);
5127 }
5128 RETURN;
5129 }
5130
5131 if (pwent) {
3280af22 5132 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5133 sv_setpv(sv, pwent->pw_name);
6ee623d5 5134
3280af22 5135 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5136 SvPOK_off(sv);
5137 /* If we have getspnam(), we try to dig up the shadow
5138 * password. If we are underprivileged, the shadow
5139 * interface will set the errno to EACCES or similar,
5140 * and return a null pointer. If this happens, we will
5141 * use the dummy password (usually "*" or "x") from the
5142 * standard password database.
5143 *
5144 * In theory we could skip the shadow call completely
5145 * if euid != 0 but in practice we cannot know which
5146 * security measures are guarding the shadow databases
5147 * on a random platform.
5148 *
5149 * Resist the urge to use additional shadow interfaces.
5150 * Divert the urge to writing an extension instead.
5151 *
5152 * --jhi */
e549f1c5
JH		 5153 /* Some AIX setups falsely(?) detect some getspnam(), which
5154 * has a different API than the Solaris/IRIX one. */
5155# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5156 {
5157 struct spwd *spwent;
5158 int saverrno; /* Save and restore errno so that
5159 * underprivileged attempts seem
5160 * to have never made the unsccessful
5161 * attempt to retrieve the shadow password. */
5162
5163 saverrno = errno;
5164 spwent = getspnam(pwent->pw_name);
5165 errno = saverrno;
5166 if (spwent && spwent->sp_pwdp)
5167 sv_setpv(sv, spwent->sp_pwdp);
5168 }
f1066039 5169# endif
e020c87d 5170# ifdef PWPASSWD
3813c136
JH		 5171 if (!SvPOK(sv)) /* Use the standard password, then. */
5172 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5173# endif
3813c136 5174
1883634f 5175# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5176 /* passwd is tainted because user himself can diddle with it.
5177 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5178 SvTAINTED_on(sv);
1883634f 5179# endif
6ee623d5 5180
3280af22 5181 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5182# if Uid_t_sign <= 0
1e422769 5183 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5184# else
23dcd6c8 5185 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5186# endif
6ee623d5 5187
3280af22 5188 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5189# if Uid_t_sign <= 0
1e422769 5190 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5191# else
23dcd6c8 5192 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5193# endif
3813c136
JH		 5194 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5195 * because of the poor interface of the Perl getpw*(),
5196 * not because there's some standard/convention saying so.
5197 * A better interface would have been to return a hash,
5198 * but we are accursed by our history, alas. --jhi. */
3280af22 5199 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5200# ifdef PWCHANGE
1e422769 5201 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5202# else
1883634f
JH		 5203# ifdef PWQUOTA
5204 sv_setiv(sv, (IV)pwent->pw_quota);
5205# else
a1757be1 5206# ifdef PWAGE
a0d0e21e 5207 sv_setpv(sv, pwent->pw_age);
a1757be1 5208# endif
6ee623d5
GS		 5209# endif
5210# endif
6ee623d5 5211
3813c136
JH		 5212 /* pw_class and pw_comment are mutually exclusive--.
5213 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5214 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5215# ifdef PWCLASS
a0d0e21e 5216 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5217# else
5218# ifdef PWCOMMENT
a0d0e21e 5219 sv_setpv(sv, pwent->pw_comment);
1883634f 5220# endif
6ee623d5 5221# endif
6ee623d5 5222
3280af22 5223 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5224# ifdef PWGECOS
a0d0e21e 5225 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5226# endif
5227# ifndef INCOMPLETE_TAINTS
d2719217 5228 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5229 SvTAINTED_on(sv);
1883634f 5230# endif
6ee623d5 5231
3280af22 5232 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5233 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5234
3280af22 5235 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5236 sv_setpv(sv, pwent->pw_shell);
1883634f 5237# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5238 /* pw_shell is tainted because user himself can diddle with it. */
5239 SvTAINTED_on(sv);
1883634f 5240# endif
6ee623d5 5241
1883634f 5242# ifdef PWEXPIRE
6b88bc9c 5243 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5244 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5245# endif
a0d0e21e
LW		 5246 }
5247 RETURN;
5248#else
af51a00e 5249 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5250#endif
5251}
5252
5253PP(pp_spwent)
5254{
d493b042 5255#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5256 dSP;
a0d0e21e
LW		 5257 setpwent();
5258 RETPUSHYES;
5259#else
cea2e8a9 5260 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5261#endif
5262}
5263
5264PP(pp_epwent)
5265{
28e8609d 5266#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5267 dSP;
a0d0e21e
LW		 5268 endpwent();
5269 RETPUSHYES;
5270#else
cea2e8a9 5271 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5272#endif
5273}
5274
a0d0e21e
LW		 5275PP(pp_ggrent)
5276{
0994c4d0 5277#ifdef HAS_GROUP
9cad6237 5278 dSP;
533c011a 5279 I32 which = PL_op->op_type;
a0d0e21e
LW		 5280 register char **elem;
5281 register SV *sv;
5282 struct group *grent;
5283
edd309b7
JH		 5284 if (which == OP_GGRNAM) {
5285 char* name = POPpbytex;
5286 grent = (struct group *)getgrnam(name);
5287 }
5288 else if (which == OP_GGRGID) {
5289 Gid_t gid = POPi;
5290 grent = (struct group *)getgrgid(gid);
5291 }
a0d0e21e 5292 else
0994c4d0 5293#ifdef HAS_GETGRENT
a0d0e21e 5294 grent = (struct group *)getgrent();
0994c4d0
JH		 5295#else
5296 DIE(aTHX_ PL_no_func, "getgrent");
5297#endif
a0d0e21e
LW		 5298
5299 EXTEND(SP, 4);
5300 if (GIMME != G_ARRAY) {
5301 PUSHs(sv = sv_newmortal());
5302 if (grent) {
5303 if (which == OP_GGRNAM)
1e422769 5304 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5305 else
5306 sv_setpv(sv, grent->gr_name);
5307 }
5308 RETURN;
5309 }
5310
5311 if (grent) {
3280af22 5312 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5313 sv_setpv(sv, grent->gr_name);
28e8609d 5314
3280af22 5315 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5316#ifdef GRPASSWD
a0d0e21e 5317 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5318#endif
5319
3280af22 5320 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5321 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5322
5b56e7c5 5323#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5324 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5325 /* In UNICOS/mk (_CRAYMPP) the multithreading
5326 * versions (getgrnam_r, getgrgid_r)
5327 * seem to return an illegal pointer
5328 * as the group members list, gr_mem.
5329 * getgrent() doesn't even have a _r version
5330 * but the gr_mem is poisonous anyway.
5331 * So yes, you cannot get the list of group
5332 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5333 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5334 sv_catpv(sv, *elem);
5335 if (elem[1])
5336 sv_catpvn(sv, " ", 1);
5337 }
3d7e8424 5338#endif
a0d0e21e
LW		 5339 }
5340
5341 RETURN;
5342#else
af51a00e 5343 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
a0d0e21e
LW		 5344#endif
5345}
5346
5347PP(pp_sgrent)
5348{
28e8609d 5349#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5350 dSP;
a0d0e21e
LW		 5351 setgrent();
5352 RETPUSHYES;
5353#else
cea2e8a9 5354 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5355#endif
5356}
5357
5358PP(pp_egrent)
5359{
28e8609d 5360#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5361 dSP;
a0d0e21e
LW		 5362 endgrent();
5363 RETPUSHYES;
5364#else
cea2e8a9 5365 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5366#endif
5367}
5368
5369PP(pp_getlogin)
5370{
a0d0e21e 5371#ifdef HAS_GETLOGIN
9cad6237 5372 dSP; dTARGET;
a0d0e21e
LW		 5373 char *tmps;
5374 EXTEND(SP, 1);
76e3520e 5375 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5376 RETPUSHUNDEF;
5377 PUSHp(tmps, strlen(tmps));
5378 RETURN;
5379#else
cea2e8a9 5380 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5381#endif
5382}
5383
5384/* Miscellaneous. */
5385
5386PP(pp_syscall)
5387{
d2719217 5388#ifdef HAS_SYSCALL
39644a26 5389 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5390 register I32 items = SP - MARK;
5391 unsigned long a[20];
5392 register I32 i = 0;
5393 I32 retval = -1;
5394
3280af22 5395 if (PL_tainting) {
a0d0e21e 5396 while (++MARK <= SP) {
bbce6d69 5397 if (SvTAINTED(*MARK)) {
5398 TAINT;
5399 break;
5400 }
a0d0e21e
LW		 5401 }
5402 MARK = ORIGMARK;
5403 TAINT_PROPER("syscall");
5404 }
5405
5406 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5407 * or where sizeof(long) != sizeof(char*). But such machines will
5408 * not likely have syscall implemented either, so who cares?
5409 */
5410 while (++MARK <= SP) {
5411 if (SvNIOK(*MARK) || !i)
5412 a[i++] = SvIV(*MARK);
3280af22 5413 else if (*MARK == &PL_sv_undef)
748a9306 5414 a[i++] = 0;
301e8125 5415 else
8b6b16e7 5416 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5417 if (i > 15)
5418 break;
5419 }
5420 switch (items) {
5421 default:
cea2e8a9 5422 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5423 case 0:
cea2e8a9 5424 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5425 case 1:
5426 retval = syscall(a[0]);
5427 break;
5428 case 2:
5429 retval = syscall(a[0],a[1]);
5430 break;
5431 case 3:
5432 retval = syscall(a[0],a[1],a[2]);
5433 break;
5434 case 4:
5435 retval = syscall(a[0],a[1],a[2],a[3]);
5436 break;
5437 case 5:
5438 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5439 break;
5440 case 6:
5441 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5442 break;
5443 case 7:
5444 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5445 break;
5446 case 8:
5447 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5448 break;
5449#ifdef atarist
5450 case 9:
5451 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5452 break;
5453 case 10:
5454 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5455 break;
5456 case 11:
5457 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5458 a[10]);
5459 break;
5460 case 12:
5461 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5462 a[10],a[11]);
5463 break;
5464 case 13:
5465 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5466 a[10],a[11],a[12]);
5467 break;
5468 case 14:
5469 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5470 a[10],a[11],a[12],a[13]);
5471 break;
5472#endif /* atarist */
5473 }
5474 SP = ORIGMARK;
5475 PUSHi(retval);
5476 RETURN;
5477#else
cea2e8a9 5478 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5479#endif
5480}
5481
ff68c719 5482#ifdef FCNTL_EMULATE_FLOCK
301e8125 5483
ff68c719 5484/* XXX Emulate flock() with fcntl().
5485 What's really needed is a good file locking module.
5486*/
5487
cea2e8a9
GS		 5488static int
5489fcntl_emulate_flock(int fd, int operation)
ff68c719 5490{
5491 struct flock flock;
301e8125 5492
ff68c719 5493 switch (operation & ~LOCK_NB) {
5494 case LOCK_SH:
5495 flock.l_type = F_RDLCK;
5496 break;
5497 case LOCK_EX:
5498 flock.l_type = F_WRLCK;
5499 break;
5500 case LOCK_UN:
5501 flock.l_type = F_UNLCK;
5502 break;
5503 default:
5504 errno = EINVAL;
5505 return -1;
5506 }
5507 flock.l_whence = SEEK_SET;
d9b3e12d 5508 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5509
ff68c719 5510 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5511}
5512
5513#endif /* FCNTL_EMULATE_FLOCK */
5514
5515#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5516
5517/* XXX Emulate flock() with lockf(). This is just to increase
5518 portability of scripts. The calls are not completely
5519 interchangeable. What's really needed is a good file
5520 locking module.
5521*/
5522
76c32331 5523/* The lockf() constants might have been defined in <unistd.h>.
5524 Unfortunately, <unistd.h> causes troubles on some mixed
5525 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5526
5527 Further, the lockf() constants aren't POSIX, so they might not be
5528 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5529 just stick in the SVID values and be done with it. Sigh.
5530*/
5531
5532# ifndef F_ULOCK
5533# define F_ULOCK 0 /* Unlock a previously locked region */
5534# endif
5535# ifndef F_LOCK
5536# define F_LOCK 1 /* Lock a region for exclusive use */
5537# endif
5538# ifndef F_TLOCK
5539# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5540# endif
5541# ifndef F_TEST
5542# define F_TEST 3 /* Test a region for other processes locks */
5543# endif
5544
cea2e8a9
GS		 5545static int
5546lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5547{
5548 int i;
84902520
TB		 5549 int save_errno;
5550 Off_t pos;
5551
5552 /* flock locks entire file so for lockf we need to do the same */
5553 save_errno = errno;
6ad3d225 5554 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5555 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5556 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5557 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5558 errno = save_errno;
5559
16d20bd9
AD		 5560 switch (operation) {
5561
5562 /* LOCK_SH - get a shared lock */
5563 case LOCK_SH:
5564 /* LOCK_EX - get an exclusive lock */
5565 case LOCK_EX:
5566 i = lockf (fd, F_LOCK, 0);
5567 break;
5568
5569 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5570 case LOCK_SH|LOCK_NB:
5571 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5572 case LOCK_EX|LOCK_NB:
5573 i = lockf (fd, F_TLOCK, 0);
5574 if (i == -1)
5575 if ((errno == EAGAIN) || (errno == EACCES))
5576 errno = EWOULDBLOCK;
5577 break;
5578
ff68c719 5579 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5580 case LOCK_UN:
ff68c719 5581 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5582 i = lockf (fd, F_ULOCK, 0);
5583 break;
5584
5585 /* Default - can't decipher operation */
5586 default:
5587 i = -1;
5588 errno = EINVAL;
5589 break;
5590 }
84902520
TB		 5591
5592 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5593 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5594
16d20bd9
AD		 5595 return (i);
5596}
ff68c719 5597
5598#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5599
5600/*
5601 * Local variables:
5602 * c-indentation-style: bsd
5603 * c-basic-offset: 4
5604 * indent-tabs-mode: t
5605 * End:
5606 *
37442d52
RGS		 5607 * ex: set ts=8 sts=4 sw=4 noet:
5608 */
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