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Eliminate more C<n_a>s
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790
JH		 89#elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
72cc7e2a 121# define my_chsize PerlLIO_chsize
27da23d5
JH		 122#else
123# ifdef HAS_TRUNCATE
124# define my_chsize PerlLIO_chsize
125# else
126I32 my_chsize(int fd, Off_t length);
127# endif
cbdc8872 128#endif
129
ff68c719 130#ifdef HAS_FLOCK
131# define FLOCK flock
132#else /* no flock() */
133
36477c24 134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138# if defined(HAS_FCNTL) && !defined(I_FCNTL)
139# include <fcntl.h>
140# endif
141
9d9004a9 142# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 143# define FLOCK fcntl_emulate_flock
144# define FCNTL_EMULATE_FLOCK
145# else /* no flock() or fcntl(F_SETLK,...) */
146# ifdef HAS_LOCKF
147# define FLOCK lockf_emulate_flock
148# define LOCKF_EMULATE_FLOCK
149# endif /* lockf */
150# endif /* no flock() or fcntl(F_SETLK,...) */
151
152# ifdef FLOCK
20ce7b12 153 static int FLOCK (int, int);
ff68c719 154
155 /*
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
158 */
159# ifndef LOCK_SH
160# define LOCK_SH 1
161# endif
162# ifndef LOCK_EX
163# define LOCK_EX 2
164# endif
165# ifndef LOCK_NB
166# define LOCK_NB 4
167# endif
168# ifndef LOCK_UN
169# define LOCK_UN 8
170# endif
171# endif /* emulating flock() */
172
173#endif /* no flock() */
55497cff 174
85ab1d1d 175#define ZBTLEN 10
27da23d5 176static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 177
5ff3f7a4
GS		 178#if defined(I_SYS_ACCESS) && !defined(R_OK)
179# include <sys/access.h>
180#endif
181
c529f79d
CB		 182#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183# define FD_CLOEXEC 1 /* NeXT needs this */
184#endif
185
a4af207c
JH		 186#include "reentr.h"
187
9cffb111
OS		 188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
5ff3f7a4
GS		 200#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201#undef PERL_EFF_ACCESS_W_OK
202#undef PERL_EFF_ACCESS_X_OK
203
204/* F_OK unused: if stat() cannot find it... */
205
206#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 208# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
211#endif
212
213#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 214# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 215# include <sys/security.h>
216# endif
c955f117
JH		 217# ifdef ACC_SELF
218 /* HP SecureWare */
219# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
222# else
223 /* SCO */
224# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
227# endif
5ff3f7a4
GS		 228#endif
229
230#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 231 /* AIX */
5ff3f7a4
GS		 232# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
235#endif
236
327c3667
GS		 237#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 240/* The Hard Way. */
327c3667 241STATIC int
7f4774ae 242S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 243{
5ff3f7a4
GS		 244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
248 int res;
249
146174a9 250 LOCK_CRED_MUTEX;
5ff3f7a4 251#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 252 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 253#else
254#ifdef HAS_SETREUID
255 if (setreuid(euid, ruid))
256#else
257#ifdef HAS_SETRESUID
258 if (setresuid(euid, ruid, (Uid_t)-1))
259#endif
260#endif
cea2e8a9 261 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 262#endif
263
264#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 265 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 266#else
267#ifdef HAS_SETREGID
268 if (setregid(egid, rgid))
269#else
270#ifdef HAS_SETRESGID
271 if (setresgid(egid, rgid, (Gid_t)-1))
272#endif
273#endif
cea2e8a9 274 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 275#endif
276
277 res = access(path, mode);
278
279#ifdef HAS_SETREUID
280 if (setreuid(ruid, euid))
281#else
282#ifdef HAS_SETRESUID
283 if (setresuid(ruid, euid, (Uid_t)-1))
284#endif
285#endif
cea2e8a9 286 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 287
288#ifdef HAS_SETREGID
289 if (setregid(rgid, egid))
290#else
291#ifdef HAS_SETRESGID
292 if (setresgid(rgid, egid, (Gid_t)-1))
293#endif
294#endif
cea2e8a9 295 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 296 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 297
298 return res;
299}
300# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
303#endif
304
305#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 306/* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
308 */
327c3667 309STATIC int
7f4774ae 310S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 311{
5d7488b2
AL		 312 (void)path;
313 (void)mode;
cea2e8a9 314 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 315 /*NOTREACHED*/
316 return -1;
317}
318#endif
319
a0d0e21e
LW		 320PP(pp_backtick)
321{
39644a26 322 dSP; dTARGET;
760ac839 323 PerlIO *fp;
5c144d81 324 const char *tmps = POPpconstx;
f54cb97a 325 const I32 gimme = GIMME_V;
e1ec3a88 326 const char *mode = "r";
54310121 327
a0d0e21e 328 TAINT_PROPER("``");
16fe6d59
GS		 329 if (PL_op->op_private & OPpOPEN_IN_RAW)
330 mode = "rb";
331 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
332 mode = "rt";
5c144d81 333 fp = PerlProc_popen((char*)tmps, (char *)mode);
a0d0e21e 334 if (fp) {
e1ec3a88 335 const char *type = NULL;
ac27b0f5 336 if (PL_curcop->cop_io) {
e62f0680 337 type = SvPV_nolen_const(PL_curcop->cop_io);
ac27b0f5 338 }
ac27b0f5
NIS		 339 if (type && *type)
340 PerlIO_apply_layers(aTHX_ fp,mode,type);
341
54310121 342 if (gimme == G_VOID) {
96827780
MB		 343 char tmpbuf[256];
344 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 345 /*SUPPRESS 530*/
346 ;
347 }
348 else if (gimme == G_SCALAR) {
75af1a9c
DM		 349 ENTER;
350 SAVESPTR(PL_rs);
fa326138 351 PL_rs = &PL_sv_undef;
c69006e4 352 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e
LW		 353 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
354 /*SUPPRESS 530*/
355 ;
75af1a9c 356 LEAVE;
a0d0e21e 357 XPUSHs(TARG);
aa689395 358 SvTAINTED_on(TARG);
a0d0e21e
LW		 359 }
360 else {
361 SV *sv;
362
363 for (;;) {
8d6dde3e 364 sv = NEWSV(56, 79);
a0d0e21e
LW		 365 if (sv_gets(sv, fp, 0) == Nullch) {
366 SvREFCNT_dec(sv);
367 break;
368 }
369 XPUSHs(sv_2mortal(sv));
370 if (SvLEN(sv) - SvCUR(sv) > 20) {
1da4ca5f 371 SvPV_shrink_to_cur(sv);
a0d0e21e 372 }
aa689395 373 SvTAINTED_on(sv);
a0d0e21e
LW		 374 }
375 }
6ad3d225 376 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 377 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 378 }
379 else {
f86702cc 380 STATUS_NATIVE_SET(-1);
54310121 381 if (gimme == G_SCALAR)
a0d0e21e
LW		 382 RETPUSHUNDEF;
383 }
384
385 RETURN;
386}
387
388PP(pp_glob)
389{
27da23d5 390 dVAR;
a0d0e21e 391 OP *result;
f5284f61
IZ		 392 tryAMAGICunTARGET(iter, -1);
393
71686f12
GS		 394 /* Note that we only ever get here if File::Glob fails to load
395 * without at the same time croaking, for some reason, or if
396 * perl was built with PERL_EXTERNAL_GLOB */
397
a0d0e21e 398 ENTER;
a0d0e21e 399
c90c0ff4 400#ifndef VMS
3280af22 401 if (PL_tainting) {
7bac28a0 402 /*
403 * The external globbing program may use things we can't control,
404 * so for security reasons we must assume the worst.
405 */
406 TAINT;
22c35a8c 407 taint_proper(PL_no_security, "glob");
7bac28a0 408 }
c90c0ff4 409#endif /* !VMS */
7bac28a0 410
3280af22
NIS		 411 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
412 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 413
3280af22 414 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 415 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 416#ifndef DOSISH
417#ifndef CSH
6b88bc9c 418 *SvPVX(PL_rs) = '\n';
a0d0e21e 419#endif /* !CSH */
55497cff 420#endif /* !DOSISH */
c07a80fd 421
a0d0e21e
LW		 422 result = do_readline();
423 LEAVE;
424 return result;
425}
426
a0d0e21e
LW		 427PP(pp_rcatline)
428{
146174a9 429 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 430 return do_readline();
431}
432
433PP(pp_warn)
434{
39644a26 435 dSP; dMARK;
06bf62c7 436 SV *tmpsv;
e1ec3a88 437 const char *tmps;
06bf62c7 438 STRLEN len;
a0d0e21e
LW		 439 if (SP - MARK != 1) {
440 dTARGET;
3280af22 441 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 442 tmpsv = TARG;
a0d0e21e
LW		 443 SP = MARK + 1;
444 }
445 else {
06bf62c7 446 tmpsv = TOPs;
a0d0e21e 447 }
e62f0680 448 tmps = SvPV_const(tmpsv, len);
7b102d90 449 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3 450 SV *error = ERRSV;
862a34c6 451 SvUPGRADE(error, SVt_PV);
4e6ea2c3
GS		 452 if (SvPOK(error) && SvCUR(error))
453 sv_catpv(error, "\t...caught");
06bf62c7 454 tmpsv = error;
e62f0680 455 tmps = SvPV_const(tmpsv, len);
a0d0e21e 456 }
06bf62c7
GS		 457 if (!tmps || !len)
458 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
459
cb50131a 460 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 461 RETSETYES;
462}
463
464PP(pp_die)
465{
39644a26 466 dSP; dMARK;
e1ec3a88 467 const char *tmps;
06bf62c7
GS		 468 SV *tmpsv;
469 STRLEN len;
470 bool multiarg = 0;
96e176bf
CL		 471#ifdef VMS
472 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
473#endif
a0d0e21e
LW		 474 if (SP - MARK != 1) {
475 dTARGET;
3280af22 476 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 477 tmpsv = TARG;
5c144d81 478 tmps = SvPV_const(tmpsv, len);
06bf62c7 479 multiarg = 1;
a0d0e21e
LW		 480 SP = MARK + 1;
481 }
482 else {
4e6ea2c3 483 tmpsv = TOPs;
5c144d81 484 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
a0d0e21e 485 }
06bf62c7 486 if (!tmps || !len) {
4e6ea2c3 487 SV *error = ERRSV;
862a34c6 488 SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 489 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
490 if (!multiarg)
4e6ea2c3 491 SvSetSV(error,tmpsv);
06bf62c7 492 else if (sv_isobject(error)) {
05423cc9
GS		 493 HV *stash = SvSTASH(SvRV(error));
494 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
495 if (gv) {
146174a9 496 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 497 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 498 EXTEND(SP, 3);
499 PUSHMARK(SP);
500 PUSHs(error);
501 PUSHs(file);
502 PUSHs(line);
503 PUTBACK;
864dbfa3
GS		 504 call_sv((SV*)GvCV(gv),
505 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 506 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 507 }
508 }
5df617be 509 DIE_NULL;
4e6ea2c3
GS		 510 }
511 else {
512 if (SvPOK(error) && SvCUR(error))
513 sv_catpv(error, "\t...propagated");
06bf62c7 514 tmpsv = error;
e62f0680 515 tmps = SvPV_const(tmpsv, len);
4e6ea2c3 516 }
a0d0e21e 517 }
06bf62c7
GS		 518 if (!tmps || !len)
519 tmpsv = sv_2mortal(newSVpvn("Died", 4));
520
cb50131a 521 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 522}
523
524/* I/O. */
525
526PP(pp_open)
527{
27da23d5 528 dVAR; dSP;
a567e93b
NIS		 529 dMARK; dORIGMARK;
530 dTARGET;
a0d0e21e
LW		 531 GV *gv;
532 SV *sv;
5b468f54 533 IO *io;
5c144d81 534 const char *tmps;
a0d0e21e 535 STRLEN len;
4592e6ca 536 MAGIC *mg;
a567e93b 537 bool ok;
a0d0e21e 538
a567e93b 539 gv = (GV *)*++MARK;
5f05dabc 540 if (!isGV(gv))
cea2e8a9 541 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 542 if ((io = GvIOp(gv)))
36477c24 543 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 544
5b468f54 545 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 546 /* Method's args are same as ours ... */
547 /* ... except handle is replaced by the object */
5b468f54 548 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 549 PUSHMARK(MARK);
4592e6ca
NIS		 550 PUTBACK;
551 ENTER;
864dbfa3 552 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 553 LEAVE;
554 SPAGAIN;
555 RETURN;
556 }
557
a567e93b
NIS		 558 if (MARK < SP) {
559 sv = *++MARK;
560 }
561 else {
562 sv = GvSV(gv);
563 }
564
5c144d81
NC		 565 tmps = SvPV_const(sv, len);
566 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 567 SP = ORIGMARK;
568 if (ok)
3280af22
NIS		 569 PUSHi( (I32)PL_forkprocess );
570 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 571 PUSHi(0);
572 else
573 RETPUSHUNDEF;
574 RETURN;
575}
576
577PP(pp_close)
578{
27da23d5 579 dVAR; dSP;
a0d0e21e 580 GV *gv;
5b468f54 581 IO *io;
1d603a67 582 MAGIC *mg;
a0d0e21e
LW		 583
584 if (MAXARG == 0)
3280af22 585 gv = PL_defoutgv;
a0d0e21e
LW		 586 else
587 gv = (GV*)POPs;
1d603a67 588
5b468f54
AMS		 589 if (gv && (io = GvIO(gv))
590 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
591 {
1d603a67 592 PUSHMARK(SP);
5b468f54 593 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 594 PUTBACK;
595 ENTER;
864dbfa3 596 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 597 LEAVE;
598 SPAGAIN;
599 RETURN;
600 }
a0d0e21e 601 EXTEND(SP, 1);
54310121 602 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 603 RETURN;
604}
605
606PP(pp_pipe_op)
607{
a0d0e21e 608#ifdef HAS_PIPE
9cad6237 609 dSP;
a0d0e21e
LW		 610 GV *rgv;
611 GV *wgv;
612 register IO *rstio;
613 register IO *wstio;
614 int fd[2];
615
616 wgv = (GV*)POPs;
617 rgv = (GV*)POPs;
618
619 if (!rgv || !wgv)
620 goto badexit;
621
4633a7c4 622 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 623 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 624 rstio = GvIOn(rgv);
625 wstio = GvIOn(wgv);
626
627 if (IoIFP(rstio))
628 do_close(rgv, FALSE);
629 if (IoIFP(wstio))
630 do_close(wgv, FALSE);
631
6ad3d225 632 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 633 goto badexit;
634
460c8493
IZ		 635 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
636 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 637 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 638 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 639 IoTYPE(rstio) = IoTYPE_RDONLY;
640 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 641
642 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 643 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 644 else PerlLIO_close(fd[0]);
760ac839 645 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 646 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 647 goto badexit;
648 }
4771b018
GS		 649#if defined(HAS_FCNTL) && defined(F_SETFD)
650 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
651 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
652#endif
a0d0e21e
LW		 653 RETPUSHYES;
654
655badexit:
656 RETPUSHUNDEF;
657#else
cea2e8a9 658 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 659#endif
660}
661
662PP(pp_fileno)
663{
27da23d5 664 dVAR; dSP; dTARGET;
a0d0e21e
LW		 665 GV *gv;
666 IO *io;
760ac839 667 PerlIO *fp;
4592e6ca
NIS		 668 MAGIC *mg;
669
a0d0e21e
LW		 670 if (MAXARG < 1)
671 RETPUSHUNDEF;
672 gv = (GV*)POPs;
4592e6ca 673
5b468f54
AMS		 674 if (gv && (io = GvIO(gv))
675 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
676 {
4592e6ca 677 PUSHMARK(SP);
5b468f54 678 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 679 PUTBACK;
680 ENTER;
864dbfa3 681 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 682 LEAVE;
683 SPAGAIN;
684 RETURN;
685 }
686
c289d2f7
JH		 687 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
688 /* Can't do this because people seem to do things like
689 defined(fileno($foo)) to check whether $foo is a valid fh.
690 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
691 report_evil_fh(gv, io, PL_op->op_type);
692 */
a0d0e21e 693 RETPUSHUNDEF;
c289d2f7
JH		 694 }
695
760ac839 696 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 697 RETURN;
698}
699
700PP(pp_umask)
701{
27da23d5 702 dSP;
d7e492a4 703#ifdef HAS_UMASK
27da23d5 704 dTARGET;
761237fe 705 Mode_t anum;
a0d0e21e 706
a0d0e21e 707 if (MAXARG < 1) {
6ad3d225
GS		 708 anum = PerlLIO_umask(0);
709 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 710 }
711 else
6ad3d225 712 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 713 TAINT_PROPER("umask");
714 XPUSHi(anum);
715#else
a0288114 716 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 717 * Otherwise it's harmless and more useful to just return undef
718 * since 'group' and 'other' concepts probably don't exist here. */
719 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 720 DIE(aTHX_ "umask not implemented");
6b88bc9c 721 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 722#endif
723 RETURN;
724}
725
726PP(pp_binmode)
727{
27da23d5 728 dVAR; dSP;
a0d0e21e
LW		 729 GV *gv;
730 IO *io;
760ac839 731 PerlIO *fp;
4592e6ca 732 MAGIC *mg;
16fe6d59 733 SV *discp = Nullsv;
a0d0e21e
LW		 734
735 if (MAXARG < 1)
736 RETPUSHUNDEF;
60382766 737 if (MAXARG > 1) {
16fe6d59 738 discp = POPs;
60382766 739 }
a0d0e21e 740
301e8125 741 gv = (GV*)POPs;
4592e6ca 742
5b468f54
AMS		 743 if (gv && (io = GvIO(gv))
744 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
745 {
4592e6ca 746 PUSHMARK(SP);
5b468f54 747 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 748 if (discp)
749 XPUSHs(discp);
4592e6ca
NIS		 750 PUTBACK;
751 ENTER;
864dbfa3 752 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 753 LEAVE;
754 SPAGAIN;
755 RETURN;
756 }
a0d0e21e
LW		 757
758 EXTEND(SP, 1);
50f846a7 759 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 760 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
761 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 762 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 763 RETPUSHUNDEF;
764 }
a0d0e21e 765
40d98b49 766 PUTBACK;
60382766 767 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
e62f0680 768 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 769 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
770 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
771 mode_from_discipline(discp),
e62f0680 772 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 773 SPAGAIN;
774 RETPUSHUNDEF;
775 }
776 }
40d98b49 777 SPAGAIN;
a0d0e21e 778 RETPUSHYES;
40d98b49
JH		 779 }
780 else {
781 SPAGAIN;
a0d0e21e 782 RETPUSHUNDEF;
40d98b49 783 }
a0d0e21e
LW		 784}
785
786PP(pp_tie)
787{
27da23d5 788 dVAR; dSP; dMARK;
a0d0e21e
LW		 789 SV *varsv;
790 HV* stash;
791 GV *gv;
a0d0e21e 792 SV *sv;
1df70142 793 const I32 markoff = MARK - PL_stack_base;
e1ec3a88 794 const char *methname;
14befaf4 795 int how = PERL_MAGIC_tied;
e336de0d 796 U32 items;
a0d0e21e 797
e336de0d 798 varsv = *++MARK;
6b05c17a
NIS		 799 switch(SvTYPE(varsv)) {
800 case SVt_PVHV:
801 methname = "TIEHASH";
bfcb3514 802 HvEITER_set((HV *)varsv, 0);
6b05c17a
NIS		 803 break;
804 case SVt_PVAV:
805 methname = "TIEARRAY";
806 break;
807 case SVt_PVGV:
7fb37951
AMS		 808#ifdef GV_UNIQUE_CHECK
809 if (GvUNIQUE((GV*)varsv)) {
810 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 811 }
812#endif
6b05c17a 813 methname = "TIEHANDLE";
14befaf4 814 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 815 /* For tied filehandles, we apply tiedscalar magic to the IO
816 slot of the GP rather than the GV itself. AMS 20010812 */
817 if (!GvIOp(varsv))
818 GvIOp(varsv) = newIO();
819 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 820 break;
821 default:
822 methname = "TIESCALAR";
14befaf4 823 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 824 break;
825 }
e336de0d
GS		 826 items = SP - MARK++;
827 if (sv_isobject(*MARK)) {
6b05c17a 828 ENTER;
e788e7d3 829 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 830 PUSHMARK(SP);
eb160463 831 EXTEND(SP,(I32)items);
e336de0d
GS		 832 while (items--)
833 PUSHs(*MARK++);
834 PUTBACK;
864dbfa3 835 call_method(methname, G_SCALAR);
301e8125 836 }
6b05c17a 837 else {
864dbfa3 838 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 839 * perhaps to get different error message ?
840 */
e336de0d 841 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 842 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
35c1215d
NC		 843 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
844 methname, *MARK);
6b05c17a
NIS		 845 }
846 ENTER;
e788e7d3 847 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 848 PUSHMARK(SP);
eb160463 849 EXTEND(SP,(I32)items);
e336de0d
GS		 850 while (items--)
851 PUSHs(*MARK++);
852 PUTBACK;
864dbfa3 853 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 854 }
a0d0e21e
LW		 855 SPAGAIN;
856
857 sv = TOPs;
d3acc0f7 858 POPSTACK;
a0d0e21e 859 if (sv_isobject(sv)) {
33c27489 860 sv_unmagic(varsv, how);
ae21d580 861 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 862 if (varsv == SvRV(sv) &&
d87ebaca
YST		 863 (SvTYPE(varsv) == SVt_PVAV ||
864 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 865 Perl_croak(aTHX_
866 "Self-ties of arrays and hashes are not supported");
d87ebaca 867 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 868 }
869 LEAVE;
3280af22 870 SP = PL_stack_base + markoff;
a0d0e21e
LW		 871 PUSHs(sv);
872 RETURN;
873}
874
875PP(pp_untie)
876{
27da23d5 877 dVAR; dSP;
5b468f54 878 MAGIC *mg;
33c27489 879 SV *sv = POPs;
1df70142 880 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 881 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 882
5b468f54
AMS		 883 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
884 RETPUSHYES;
885
65eba18f
JH		 886 if ((mg = SvTIED_mg(sv, how))) {
887 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 888 GV *gv;
889 CV *cv = NULL;
fa2b88e0
JS		 890 if (obj) {
891 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
892 isGV(gv) && (cv = GvCV(gv))) {
893 PUSHMARK(SP);
894 XPUSHs(SvTIED_obj((SV*)gv, mg));
895 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
896 PUTBACK;
897 ENTER;
898 call_sv((SV *)cv, G_VOID);
899 LEAVE;
900 SPAGAIN;
901 }
902 else if (ckWARN(WARN_UNTIE)) {
903 if (mg && SvREFCNT(obj) > 1)
9014280d 904 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 905 "untie attempted while %"UVuf" inner references still exist",
906 (UV)SvREFCNT(obj) - 1 ) ;
907 }
cbdc8872 908 }
909 }
38193a09 910 sv_unmagic(sv, how) ;
55497cff 911 RETPUSHYES;
a0d0e21e
LW		 912}
913
c07a80fd 914PP(pp_tied)
915{
39644a26 916 dSP;
5b468f54 917 MAGIC *mg;
33c27489 918 SV *sv = POPs;
1df70142 919 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 920 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 921
922 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
923 RETPUSHUNDEF;
c07a80fd 924
155aba94 925 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 926 SV *osv = SvTIED_obj(sv, mg);
927 if (osv == mg->mg_obj)
928 osv = sv_mortalcopy(osv);
929 PUSHs(osv);
930 RETURN;
c07a80fd 931 }
c07a80fd 932 RETPUSHUNDEF;
933}
934
a0d0e21e
LW		 935PP(pp_dbmopen)
936{
27da23d5 937 dVAR; dSP;
a0d0e21e
LW		 938 HV *hv;
939 dPOPPOPssrl;
940 HV* stash;
941 GV *gv;
a0d0e21e
LW		 942 SV *sv;
943
944 hv = (HV*)POPs;
945
3280af22 946 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 947 sv_setpv(sv, "AnyDBM_File");
948 stash = gv_stashsv(sv, FALSE);
8ebc5c01 949 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 950 PUTBACK;
864dbfa3 951 require_pv("AnyDBM_File.pm");
a0d0e21e 952 SPAGAIN;
8ebc5c01 953 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 954 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 955 }
956
57d3b86d 957 ENTER;
924508f0 958 PUSHMARK(SP);
6b05c17a 959
924508f0 960 EXTEND(SP, 5);
a0d0e21e
LW		 961 PUSHs(sv);
962 PUSHs(left);
963 if (SvIV(right))
b448e4fe 964 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 965 else
b448e4fe 966 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 967 PUSHs(right);
57d3b86d 968 PUTBACK;
864dbfa3 969 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 970 SPAGAIN;
971
972 if (!sv_isobject(TOPs)) {
924508f0
GS		 973 SP--;
974 PUSHMARK(SP);
a0d0e21e
LW		 975 PUSHs(sv);
976 PUSHs(left);
b448e4fe 977 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 978 PUSHs(right);
a0d0e21e 979 PUTBACK;
864dbfa3 980 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 981 SPAGAIN;
982 }
983
6b05c17a 984 if (sv_isobject(TOPs)) {
14befaf4
DM		 985 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
986 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 987 }
a0d0e21e
LW		 988 LEAVE;
989 RETURN;
990}
991
992PP(pp_dbmclose)
993{
cea2e8a9 994 return pp_untie();
a0d0e21e
LW		 995}
996
997PP(pp_sselect)
998{
a0d0e21e 999#ifdef HAS_SELECT
9cad6237 1000 dSP; dTARGET;
a0d0e21e
LW		 1001 register I32 i;
1002 register I32 j;
1003 register char *s;
1004 register SV *sv;
65202027 1005 NV value;
a0d0e21e
LW		 1006 I32 maxlen = 0;
1007 I32 nfound;
1008 struct timeval timebuf;
1009 struct timeval *tbuf = &timebuf;
1010 I32 growsize;
1011 char *fd_sets[4];
2d8e6c8d 1012 STRLEN n_a;
a0d0e21e
LW		 1013#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1014 I32 masksize;
1015 I32 offset;
1016 I32 k;
1017
1018# if BYTEORDER & 0xf0000
1019# define ORDERBYTE (0x88888888 - BYTEORDER)
1020# else
1021# define ORDERBYTE (0x4444 - BYTEORDER)
1022# endif
1023
1024#endif
1025
1026 SP -= 4;
1027 for (i = 1; i <= 3; i++) {
1028 if (!SvPOK(SP[i]))
1029 continue;
1030 j = SvCUR(SP[i]);
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];
1079 if (!SvOK(sv)) {
1080 fd_sets[i] = 0;
1081 continue;
1082 }
1083 else if (!SvPOK(sv))
2d8e6c8d 1084 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1085 j = SvLEN(sv);
1086 if (j < growsize) {
1087 Sv_Grow(sv, growsize);
a0d0e21e 1088 }
c07a80fd 1089 j = SvCUR(sv);
1090 s = SvPVX(sv) + j;
1091 while (++j <= growsize) {
1092 *s++ = '\0';
1093 }
1094
a0d0e21e
LW		 1095#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1096 s = SvPVX(sv);
1097 New(403, fd_sets[i], growsize, char);
1098 for (offset = 0; offset < growsize; offset += masksize) {
1099 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1100 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1101 }
1102#else
1103 fd_sets[i] = SvPVX(sv);
1104#endif
1105 }
1106
dc4c69d9
JH		 1107#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1108 /* Can't make just the (void*) conditional because that would be
1109 * cpp #if within cpp macro, and not all compilers like that. */
1110 nfound = PerlSock_select(
1111 maxlen * 8,
1112 (Select_fd_set_t) fd_sets[1],
1113 (Select_fd_set_t) fd_sets[2],
1114 (Select_fd_set_t) fd_sets[3],
1115 (void*) tbuf); /* Workaround for compiler bug. */
1116#else
6ad3d225 1117 nfound = PerlSock_select(
a0d0e21e
LW		 1118 maxlen * 8,
1119 (Select_fd_set_t) fd_sets[1],
1120 (Select_fd_set_t) fd_sets[2],
1121 (Select_fd_set_t) fd_sets[3],
1122 tbuf);
dc4c69d9 1123#endif
a0d0e21e
LW		 1124 for (i = 1; i <= 3; i++) {
1125 if (fd_sets[i]) {
1126 sv = SP[i];
1127#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1128 s = SvPVX(sv);
1129 for (offset = 0; offset < growsize; offset += masksize) {
1130 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1131 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1132 }
1133 Safefree(fd_sets[i]);
1134#endif
1135 SvSETMAGIC(sv);
1136 }
1137 }
1138
5c477709
RGS		 1139 if (nfound == -1)
1140 PUSHs(&PL_sv_undef);
1141 else
1142 PUSHi(nfound);
a0d0e21e 1143 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1144 value = (NV)(timebuf.tv_sec) +
1145 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1146 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1147 sv_setnv(sv, value);
1148 }
1149 RETURN;
1150#else
cea2e8a9 1151 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1152#endif
1153}
1154
4633a7c4 1155void
864dbfa3 1156Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1157{
1158 if (gv)
1159 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1160 if (PL_defoutgv)
1161 SvREFCNT_dec(PL_defoutgv);
1162 PL_defoutgv = gv;
4633a7c4
LW		 1163}
1164
a0d0e21e
LW		 1165PP(pp_select)
1166{
39644a26 1167 dSP; dTARGET;
1df70142 1168 GV *egv;
4633a7c4
LW		 1169 HV *hv;
1170
1df70142 1171 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1172
3280af22 1173 egv = GvEGV(PL_defoutgv);
4633a7c4 1174 if (!egv)
3280af22 1175 egv = PL_defoutgv;
4633a7c4
LW		 1176 hv = GvSTASH(egv);
1177 if (! hv)
3280af22 1178 XPUSHs(&PL_sv_undef);
4633a7c4 1179 else {
cbdc8872 1180 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1181 if (gvp && *gvp == egv) {
f7aaccc2 1182 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1183 XPUSHTARG;
1184 }
1185 else {
1186 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1187 }
4633a7c4
LW		 1188 }
1189
1190 if (newdefout) {
ded8aa31
GS		 1191 if (!GvIO(newdefout))
1192 gv_IOadd(newdefout);
4633a7c4
LW		 1193 setdefout(newdefout);
1194 }
1195
a0d0e21e
LW		 1196 RETURN;
1197}
1198
1199PP(pp_getc)
1200{
27da23d5 1201 dVAR; dSP; dTARGET;
a0d0e21e 1202 GV *gv;
90133b69 1203 IO *io = NULL;
2ae324a7 1204 MAGIC *mg;
a0d0e21e 1205
32da55ab 1206 if (MAXARG == 0)
3280af22 1207 gv = PL_stdingv;
a0d0e21e
LW		 1208 else
1209 gv = (GV*)POPs;
2ae324a7 1210
5b468f54
AMS		 1211 if (gv && (io = GvIO(gv))
1212 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1213 {
f54cb97a 1214 const I32 gimme = GIMME_V;
2ae324a7 1215 PUSHMARK(SP);
5b468f54 1216 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1217 PUTBACK;
1218 ENTER;
864dbfa3 1219 call_method("GETC", gimme);
2ae324a7 1220 LEAVE;
1221 SPAGAIN;
54310121 1222 if (gimme == G_SCALAR)
1223 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1224 RETURN;
1225 }
90133b69 1226 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1227 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1228 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1229 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1230 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1231 RETPUSHUNDEF;
90133b69 1232 }
bbce6d69 1233 TAINT;
c69006e4 1234 sv_setpvn(TARG, " ", 1);
9bc64814 1235 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1236 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1237 /* Find out how many bytes the char needs */
aa07b2f6 1238 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1239 if (len > 1) {
1240 SvGROW(TARG,len+1);
1241 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1242 SvCUR_set(TARG,1+len);
1243 }
1244 SvUTF8_on(TARG);
1245 }
a0d0e21e
LW		 1246 PUSHTARG;
1247 RETURN;
1248}
1249
1250PP(pp_read)
1251{
cea2e8a9 1252 return pp_sysread();
a0d0e21e
LW		 1253}
1254
76e3520e 1255STATIC OP *
cea2e8a9 1256S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1257{
27da23d5 1258 dVAR;
c09156bb 1259 register PERL_CONTEXT *cx;
f54cb97a 1260 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1261
1262 ENTER;
1263 SAVETMPS;
1264
146174a9 1265 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1266 PUSHFORMAT(cx);
f39bc417 1267 cx->blk_sub.retop = retop;
dd2155a4 1268 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1269
4633a7c4 1270 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1271 return CvSTART(cv);
1272}
1273
1274PP(pp_enterwrite)
1275{
39644a26 1276 dSP;
a0d0e21e
LW		 1277 register GV *gv;
1278 register IO *io;
1279 GV *fgv;
1280 CV *cv;
1281
1282 if (MAXARG == 0)
3280af22 1283 gv = PL_defoutgv;
a0d0e21e
LW		 1284 else {
1285 gv = (GV*)POPs;
1286 if (!gv)
3280af22 1287 gv = PL_defoutgv;
a0d0e21e
LW		 1288 }
1289 EXTEND(SP, 1);
1290 io = GvIO(gv);
1291 if (!io) {
1292 RETPUSHNO;
1293 }
1294 if (IoFMT_GV(io))
1295 fgv = IoFMT_GV(io);
1296 else
1297 fgv = gv;
1298
1299 cv = GvFORM(fgv);
a0d0e21e
LW		 1300 if (!cv) {
1301 if (fgv) {
1df70142 1302 SV * const tmpsv = sv_newmortal();
e62f0680 1303 const char *name;
43693395 1304 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1305 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1306 if (name && *name)
1307 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1308 }
cea2e8a9 1309 DIE(aTHX_ "Not a format reference");
a0d0e21e 1310 }
44a8e56a 1311 if (CvCLONE(cv))
1312 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1313
44a8e56a 1314 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1315 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1316}
1317
1318PP(pp_leavewrite)
1319{
27da23d5 1320 dVAR; dSP;
a0d0e21e
LW		 1321 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1322 register IO *io = GvIOp(gv);
760ac839
LW		 1323 PerlIO *ofp = IoOFP(io);
1324 PerlIO *fp;
a0d0e21e
LW		 1325 SV **newsp;
1326 I32 gimme;
c09156bb 1327 register PERL_CONTEXT *cx;
a0d0e21e 1328
760ac839 1329 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1330 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1331 if (!io || !ofp)
1332 goto forget_top;
3280af22
NIS		 1333 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1334 PL_formtarget != PL_toptarget)
a0d0e21e 1335 {
4633a7c4
LW		 1336 GV *fgv;
1337 CV *cv;
a0d0e21e
LW		 1338 if (!IoTOP_GV(io)) {
1339 GV *topgv;
46fc3d4c 1340 SV *topname;
a0d0e21e
LW		 1341
1342 if (!IoTOP_NAME(io)) {
1343 if (!IoFMT_NAME(io))
1344 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1345 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1346 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1347 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1348 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1349 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1350 else
ff5bdd37 1351 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1352 }
1353 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1354 if (!topgv || !GvFORM(topgv)) {
b929a54b 1355 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1356 goto forget_top;
1357 }
1358 IoTOP_GV(io) = topgv;
1359 }
748a9306
LW		 1360 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1361 I32 lines = IoLINES_LEFT(io);
504618e9 1362 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1363 if (lines <= 0) /* Yow, header didn't even fit!!! */
1364 goto forget_top;
748a9306
LW		 1365 while (lines-- > 0) {
1366 s = strchr(s, '\n');
1367 if (!s)
1368 break;
1369 s++;
1370 }
1371 if (s) {
f54cb97a 1372 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1373 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1374 do_print(PL_formtarget, ofp);
1375 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1376 sv_chop(PL_formtarget, s);
1377 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1378 }
1379 }
a0d0e21e 1380 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1381 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1382 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1383 IoPAGE(io)++;
3280af22 1384 PL_formtarget = PL_toptarget;
748a9306 1385 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1386 fgv = IoTOP_GV(io);
1387 if (!fgv)
cea2e8a9 1388 DIE(aTHX_ "bad top format reference");
4633a7c4 1389 cv = GvFORM(fgv);
1df70142
AL		 1390 if (!cv) {
1391 SV * const sv = sv_newmortal();
b464bac0 1392 const char *name;
1df70142 1393 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1394 name = SvPV_nolen_const(sv);
2dd78f96 1395 if (name && *name)
1df70142 1396 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1397 }
1df70142
AL		 1398 /* why no:
1399 else
1400 DIE(aTHX_ "Undefined top format called");
1401 ?*/
44a8e56a 1402 if (CvCLONE(cv))
1403 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1404 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1405 }
1406
1407 forget_top:
3280af22 1408 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1409 POPFORMAT(cx);
1410 LEAVE;
1411
1412 fp = IoOFP(io);
1413 if (!fp) {
599cee73 1414 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1415 if (IoIFP(io))
1416 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1417 else if (ckWARN(WARN_CLOSED))
bc37a18f 1418 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1419 }
3280af22 1420 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1421 }
1422 else {
3280af22 1423 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1424 if (ckWARN(WARN_IO))
9014280d 1425 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1426 }
d75029d0 1427 if (!do_print(PL_formtarget, fp))
3280af22 1428 PUSHs(&PL_sv_no);
a0d0e21e 1429 else {
3280af22
NIS		 1430 FmLINES(PL_formtarget) = 0;
1431 SvCUR_set(PL_formtarget, 0);
1432 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1433 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1434 (void)PerlIO_flush(fp);
3280af22 1435 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1436 }
1437 }
9cbac4c7 1438 /* bad_ofp: */
3280af22 1439 PL_formtarget = PL_bodytarget;
a0d0e21e 1440 PUTBACK;
f39bc417 1441 return cx->blk_sub.retop;
a0d0e21e
LW		 1442}
1443
1444PP(pp_prtf)
1445{
27da23d5 1446 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1447 GV *gv;
1448 IO *io;
760ac839 1449 PerlIO *fp;
26db47c4 1450 SV *sv;
46fc3d4c 1451 MAGIC *mg;
a0d0e21e 1452
533c011a 1453 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1454 gv = (GV*)*++MARK;
1455 else
3280af22 1456 gv = PL_defoutgv;
46fc3d4c 1457
5b468f54
AMS		 1458 if (gv && (io = GvIO(gv))
1459 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1460 {
46fc3d4c 1461 if (MARK == ORIGMARK) {
4352c267 1462 MEXTEND(SP, 1);
46fc3d4c 1463 ++MARK;
1464 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1465 ++SP;
1466 }
1467 PUSHMARK(MARK - 1);
5b468f54 1468 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1469 PUTBACK;
1470 ENTER;
864dbfa3 1471 call_method("PRINTF", G_SCALAR);
46fc3d4c 1472 LEAVE;
1473 SPAGAIN;
1474 MARK = ORIGMARK + 1;
1475 *MARK = *SP;
1476 SP = MARK;
1477 RETURN;
1478 }
1479
26db47c4 1480 sv = NEWSV(0,0);
a0d0e21e 1481 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1482 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1483 report_evil_fh(gv, io, PL_op->op_type);
93189314 1484 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1485 goto just_say_no;
1486 }
1487 else if (!(fp = IoOFP(io))) {
599cee73 1488 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1489 if (IoIFP(io))
1490 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1491 else if (ckWARN(WARN_CLOSED))
bc37a18f 1492 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1493 }
93189314 1494 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1495 goto just_say_no;
1496 }
1497 else {
1498 do_sprintf(sv, SP - MARK, MARK + 1);
1499 if (!do_print(sv, fp))
1500 goto just_say_no;
1501
1502 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1503 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1504 goto just_say_no;
1505 }
1506 SvREFCNT_dec(sv);
1507 SP = ORIGMARK;
3280af22 1508 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1509 RETURN;
1510
1511 just_say_no:
1512 SvREFCNT_dec(sv);
1513 SP = ORIGMARK;
3280af22 1514 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1515 RETURN;
1516}
1517
c07a80fd 1518PP(pp_sysopen)
1519{
39644a26 1520 dSP;
c07a80fd 1521 GV *gv;
c07a80fd 1522 SV *sv;
e62f0680 1523 const char *tmps;
c07a80fd 1524 STRLEN len;
1df70142
AL		 1525 const int perm = (MAXARG > 3) ? POPi : 0666;
1526 const int mode = POPi;
c07a80fd 1527
c07a80fd 1528 sv = POPs;
1529 gv = (GV *)POPs;
1530
4592e6ca
NIS		 1531 /* Need TIEHANDLE method ? */
1532
e62f0680
NC		 1533 tmps = SvPV_const(sv, len);
1534 /* FIXME? do_open should do const */
1535 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1536 IoLINES(GvIOp(gv)) = 0;
3280af22 1537 PUSHs(&PL_sv_yes);
c07a80fd 1538 }
1539 else {
3280af22 1540 PUSHs(&PL_sv_undef);
c07a80fd 1541 }
1542 RETURN;
1543}
1544
a0d0e21e
LW		 1545PP(pp_sysread)
1546{
27da23d5 1547 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1548 int offset;
1549 GV *gv;
1550 IO *io;
1551 char *buffer;
5b54f415 1552 SSize_t length;
eb5c063a 1553 SSize_t count;
1e422769 1554 Sock_size_t bufsize;
748a9306 1555 SV *bufsv;
a0d0e21e 1556 STRLEN blen;
2ae324a7 1557 MAGIC *mg;
eb5c063a 1558 int fp_utf8;
1dd30107
NC		 1559 int buffer_utf8;
1560 SV *read_target;
eb5c063a
NIS		 1561 Size_t got = 0;
1562 Size_t wanted;
1d636c13 1563 bool charstart = FALSE;
87330c3c
JH		 1564 STRLEN charskip = 0;
1565 STRLEN skip = 0;
a0d0e21e
LW		 1566
1567 gv = (GV*)*++MARK;
5b468f54
AMS		 1568 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1569 && gv && (io = GvIO(gv))
1570 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1571 {
2ae324a7 1572 SV *sv;
1573
1574 PUSHMARK(MARK-1);
5b468f54 1575 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1576 ENTER;
864dbfa3 1577 call_method("READ", G_SCALAR);
2ae324a7 1578 LEAVE;
1579 SPAGAIN;
1580 sv = POPs;
1581 SP = ORIGMARK;
1582 PUSHs(sv);
1583 RETURN;
1584 }
1585
a0d0e21e
LW		 1586 if (!gv)
1587 goto say_undef;
748a9306 1588 bufsv = *++MARK;
ff68c719 1589 if (! SvOK(bufsv))
1590 sv_setpvn(bufsv, "", 0);
a0d0e21e 1591 length = SvIVx(*++MARK);
748a9306 1592 SETERRNO(0,0);
a0d0e21e
LW		 1593 if (MARK < SP)
1594 offset = SvIVx(*++MARK);
1595 else
1596 offset = 0;
1597 io = GvIO(gv);
b5fe5ca2
SR		 1598 if (!io || !IoIFP(io)) {
1599 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1600 report_evil_fh(gv, io, PL_op->op_type);
1601 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1602 goto say_undef;
b5fe5ca2 1603 }
0064a8a9 1604 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1605 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1606 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1607 SvUTF8_on(bufsv);
9b9d7ce8 1608 buffer_utf8 = 0;
7d59b7e4
NIS		 1609 }
1610 else {
1611 buffer = SvPV_force(bufsv, blen);
1dd30107 1612 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1613 }
1614 if (length < 0)
1615 DIE(aTHX_ "Negative length");
eb5c063a 1616 wanted = length;
7d59b7e4 1617
d0965105
JH		 1618 charstart = TRUE;
1619 charskip = 0;
87330c3c 1620 skip = 0;
d0965105 1621
a0d0e21e 1622#ifdef HAS_SOCKET
533c011a 1623 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1624 char namebuf[MAXPATHLEN];
17a8c7ba 1625#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1626 bufsize = sizeof (struct sockaddr_in);
1627#else
46fc3d4c 1628 bufsize = sizeof namebuf;
490ab354 1629#endif
abf95952
IZ		 1630#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1631 if (bufsize >= 256)
1632 bufsize = 255;
1633#endif
eb160463 1634 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1635 /* 'offset' means 'flags' here */
eb5c063a 1636 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1637 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1638 if (count < 0)
a0d0e21e 1639 RETPUSHUNDEF;
4107cc59
OF		 1640#ifdef EPOC
1641 /* Bogus return without padding */
1642 bufsize = sizeof (struct sockaddr_in);
1643#endif
eb5c063a 1644 SvCUR_set(bufsv, count);
748a9306
LW		 1645 *SvEND(bufsv) = '\0';
1646 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1647 if (fp_utf8)
1648 SvUTF8_on(bufsv);
748a9306 1649 SvSETMAGIC(bufsv);
aac0dd9a 1650 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1651 if (!(IoFLAGS(io) & IOf_UNTAINT))
1652 SvTAINTED_on(bufsv);
a0d0e21e 1653 SP = ORIGMARK;
46fc3d4c 1654 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1655 PUSHs(TARG);
1656 RETURN;
1657 }
1658#else
911d147d 1659 if (PL_op->op_type == OP_RECV)
cea2e8a9 1660 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1661#endif
eb5c063a
NIS		 1662 if (DO_UTF8(bufsv)) {
1663 /* offset adjust in characters not bytes */
1664 blen = sv_len_utf8(bufsv);
7d59b7e4 1665 }
bbce6d69 1666 if (offset < 0) {
eb160463 1667 if (-offset > (int)blen)
cea2e8a9 1668 DIE(aTHX_ "Offset outside string");
bbce6d69 1669 offset += blen;
1670 }
eb5c063a
NIS		 1671 if (DO_UTF8(bufsv)) {
1672 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1673 if (offset >= (int)blen)
1674 offset += SvCUR(bufsv) - blen;
1675 else
1676 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1677 }
1678 more_bytes:
cd52b7b2 1679 bufsize = SvCUR(bufsv);
1dd30107
NC		 1680 /* Allocating length + offset + 1 isn't perfect in the case of reading
1681 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1682 unduly.
1683 (should be 2 * length + offset + 1, or possibly something longer if
1684 PL_encoding is true) */
eb160463 1685 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1686 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1687 Zero(buffer+bufsize, offset-bufsize, char);
1688 }
eb5c063a 1689 buffer = buffer + offset;
1dd30107
NC		 1690 if (!buffer_utf8) {
1691 read_target = bufsv;
1692 } else {
1693 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1694 concatenate it to the current buffer. */
1695
1696 /* Truncate the existing buffer to the start of where we will be
1697 reading to: */
1698 SvCUR_set(bufsv, offset);
1699
1700 read_target = sv_newmortal();
862a34c6 1701 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1702 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1703 }
eb5c063a 1704
533c011a 1705 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1706#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1707 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1708 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1709 buffer, length, 0);
a7092146
GS		 1710 }
1711 else
1712#endif
1713 {
eb5c063a
NIS		 1714 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1715 buffer, length);
a7092146 1716 }
a0d0e21e
LW		 1717 }
1718 else
1719#ifdef HAS_SOCKET__bad_code_maybe
50952442 1720 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1721 char namebuf[MAXPATHLEN];
490ab354
JH		 1722#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1723 bufsize = sizeof (struct sockaddr_in);
1724#else
46fc3d4c 1725 bufsize = sizeof namebuf;
490ab354 1726#endif
eb5c063a 1727 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1728 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1729 }
1730 else
1731#endif
3b02c43c 1732 {
eb5c063a
NIS		 1733 count = PerlIO_read(IoIFP(io), buffer, length);
1734 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1735 if (count == 0 && PerlIO_error(IoIFP(io)))
1736 count = -1;
3b02c43c 1737 }
eb5c063a 1738 if (count < 0) {
a00b5bd3 1739 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1740 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1741 goto say_undef;
af8c498a 1742 }
aa07b2f6 1743 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1744 *SvEND(read_target) = '\0';
1745 (void)SvPOK_only(read_target);
0064a8a9 1746 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1747 /* Look at utf8 we got back and count the characters */
1df70142 1748 const char *bend = buffer + count;
eb5c063a 1749 while (buffer < bend) {
d0965105
JH		 1750 if (charstart) {
1751 skip = UTF8SKIP(buffer);
1752 charskip = 0;
1753 }
1754 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1755 /* partial character - try for rest of it */
1756 length = skip - (bend-buffer);
aa07b2f6 1757 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1758 charstart = FALSE;
1759 charskip += count;
eb5c063a
NIS		 1760 goto more_bytes;
1761 }
1762 else {
1763 got++;
1764 buffer += skip;
d0965105
JH		 1765 charstart = TRUE;
1766 charskip = 0;
eb5c063a
NIS		 1767 }
1768 }
1769 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1770 provided amount read (count) was what was requested (length)
1771 */
1772 if (got < wanted && count == length) {
d0965105 1773 length = wanted - got;
aa07b2f6 1774 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1775 goto more_bytes;
1776 }
1777 /* return value is character count */
1778 count = got;
1779 SvUTF8_on(bufsv);
1780 }
1dd30107
NC		 1781 else if (buffer_utf8) {
1782 /* Let svcatsv upgrade the bytes we read in to utf8.
1783 The buffer is a mortal so will be freed soon. */
1784 sv_catsv_nomg(bufsv, read_target);
1785 }
748a9306 1786 SvSETMAGIC(bufsv);
aac0dd9a 1787 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1788 if (!(IoFLAGS(io) & IOf_UNTAINT))
1789 SvTAINTED_on(bufsv);
a0d0e21e 1790 SP = ORIGMARK;
eb5c063a 1791 PUSHi(count);
a0d0e21e
LW		 1792 RETURN;
1793
1794 say_undef:
1795 SP = ORIGMARK;
1796 RETPUSHUNDEF;
1797}
1798
1799PP(pp_syswrite)
1800{
27da23d5 1801 dVAR; dSP;
1df70142 1802 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1803 if (items == 2) {
9f089d78 1804 SV *sv;
092bebab 1805 EXTEND(SP, 1);
9f089d78
SB		 1806 sv = sv_2mortal(newSViv(sv_len(*SP)));
1807 PUSHs(sv);
092bebab
JH		 1808 PUTBACK;
1809 }
cea2e8a9 1810 return pp_send();
a0d0e21e
LW		 1811}
1812
1813PP(pp_send)
1814{
27da23d5 1815 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1816 GV *gv;
1817 IO *io;
748a9306 1818 SV *bufsv;
83003860 1819 const char *buffer;
8c99d73e
GS		 1820 Size_t length;
1821 SSize_t retval;
a0d0e21e 1822 STRLEN blen;
1d603a67 1823 MAGIC *mg;
a0d0e21e
LW		 1824
1825 gv = (GV*)*++MARK;
14befaf4 1826 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1827 && gv && (io = GvIO(gv))
1828 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1829 {
1d603a67
GB		 1830 SV *sv;
1831
1832 PUSHMARK(MARK-1);
5b468f54 1833 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1834 ENTER;
864dbfa3 1835 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1836 LEAVE;
1837 SPAGAIN;
1838 sv = POPs;
1839 SP = ORIGMARK;
1840 PUSHs(sv);
1841 RETURN;
1842 }
a0d0e21e
LW		 1843 if (!gv)
1844 goto say_undef;
748a9306 1845 bufsv = *++MARK;
8c99d73e 1846#if Size_t_size > IVSIZE
3c001241 1847 length = (Size_t)SvNVx(*++MARK);
146174a9 1848#else
3c001241 1849 length = (Size_t)SvIVx(*++MARK);
146174a9 1850#endif
3c001241 1851 if ((SSize_t)length < 0)
cea2e8a9 1852 DIE(aTHX_ "Negative length");
748a9306 1853 SETERRNO(0,0);
a0d0e21e
LW		 1854 io = GvIO(gv);
1855 if (!io || !IoIFP(io)) {
8c99d73e 1856 retval = -1;
bc37a18f
RG		 1857 if (ckWARN(WARN_CLOSED))
1858 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1859 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1860 goto say_undef;
1861 }
1862
1863 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1864 if (!SvUTF8(bufsv)) {
1865 bufsv = sv_2mortal(newSVsv(bufsv));
1866 buffer = sv_2pvutf8(bufsv, &blen);
1867 } else
83003860 1868 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1869 }
7d59b7e4 1870 else {
4de5f5ca
JH		 1871 if (DO_UTF8(bufsv)) {
1872 /* Not modifying source SV, so making a temporary copy. */
1873 bufsv = sv_2mortal(newSVsv(bufsv));
1874 sv_utf8_downgrade(bufsv, FALSE);
1875 }
83003860 1876 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1877 }
1878
1879 if (PL_op->op_type == OP_SYSWRITE) {
1880 IV offset;
1881 if (DO_UTF8(bufsv)) {
1882 /* length and offset are in chars */
1883 blen = sv_len_utf8(bufsv);
1884 }
bbce6d69 1885 if (MARK < SP) {
a0d0e21e 1886 offset = SvIVx(*++MARK);
bbce6d69 1887 if (offset < 0) {
eb160463 1888 if (-offset > (IV)blen)
cea2e8a9 1889 DIE(aTHX_ "Offset outside string");
bbce6d69 1890 offset += blen;
eb160463 1891 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1892 DIE(aTHX_ "Offset outside string");
bbce6d69 1893 } else
a0d0e21e
LW		 1894 offset = 0;
1895 if (length > blen - offset)
1896 length = blen - offset;
7d59b7e4 1897 if (DO_UTF8(bufsv)) {
83003860 1898 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1899 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1900 }
1901 else {
1902 buffer = buffer+offset;
1903 }
a7092146 1904#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1905 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1906 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1907 buffer, length, 0);
a7092146
GS		 1908 }
1909 else
1910#endif
1911 {
94e4c244 1912 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1913 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1914 buffer, length);
a7092146 1915 }
a0d0e21e
LW		 1916 }
1917#ifdef HAS_SOCKET
1918 else if (SP > MARK) {
a0d0e21e 1919 STRLEN mlen;
1df70142 1920 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1921 /* length is really flags */
8c99d73e
GS		 1922 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1923 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1924 }
1925 else
7d59b7e4 1926 /* length is really flags */
8c99d73e 1927 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1928#else
1929 else
cea2e8a9 1930 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1931#endif
8c99d73e 1932 if (retval < 0)
a0d0e21e
LW		 1933 goto say_undef;
1934 SP = ORIGMARK;
f36eea10
JH		 1935 if (DO_UTF8(bufsv))
1936 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1937#if Size_t_size > IVSIZE
1938 PUSHn(retval);
1939#else
1940 PUSHi(retval);
1941#endif
a0d0e21e
LW		 1942 RETURN;
1943
1944 say_undef:
1945 SP = ORIGMARK;
1946 RETPUSHUNDEF;
1947}
1948
1949PP(pp_recv)
1950{
cea2e8a9 1951 return pp_sysread();
a0d0e21e
LW		 1952}
1953
1954PP(pp_eof)
1955{
27da23d5 1956 dVAR; dSP;
a0d0e21e 1957 GV *gv;
5b468f54 1958 IO *io;
4592e6ca 1959 MAGIC *mg;
a0d0e21e 1960
32da55ab 1961 if (MAXARG == 0) {
146174a9
CB		 1962 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1963 IO *io;
ed2c6b9b 1964 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1965 io = GvIO(gv);
1966 if (io && !IoIFP(io)) {
1967 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1968 IoLINES(io) = 0;
1969 IoFLAGS(io) &= ~IOf_START;
dd374669 1970 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1971 sv_setpvn(GvSV(gv), "-", 1);
1972 SvSETMAGIC(GvSV(gv));
1973 }
1974 else if (!nextargv(gv))
1975 RETPUSHYES;
1976 }
1977 }
1978 else
1979 gv = PL_last_in_gv; /* eof */
1980 }
a0d0e21e 1981 else
146174a9 1982 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1983
5b468f54
AMS		 1984 if (gv && (io = GvIO(gv))
1985 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1986 {
4592e6ca 1987 PUSHMARK(SP);
5b468f54 1988 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1989 PUTBACK;
1990 ENTER;
864dbfa3 1991 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1992 LEAVE;
1993 SPAGAIN;
1994 RETURN;
1995 }
1996
54310121 1997 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1998 RETURN;
1999}
2000
2001PP(pp_tell)
2002{
27da23d5 2003 dVAR; dSP; dTARGET;
301e8125 2004 GV *gv;
5b468f54 2005 IO *io;
4592e6ca 2006 MAGIC *mg;
a0d0e21e 2007
32da55ab 2008 if (MAXARG == 0)
3280af22 2009 gv = PL_last_in_gv;
a0d0e21e 2010 else
3280af22 2011 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2012
5b468f54
AMS		 2013 if (gv && (io = GvIO(gv))
2014 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2015 {
4592e6ca 2016 PUSHMARK(SP);
5b468f54 2017 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2018 PUTBACK;
2019 ENTER;
864dbfa3 2020 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2021 LEAVE;
2022 SPAGAIN;
2023 RETURN;
2024 }
2025
146174a9
CB		 2026#if LSEEKSIZE > IVSIZE
2027 PUSHn( do_tell(gv) );
2028#else
a0d0e21e 2029 PUSHi( do_tell(gv) );
146174a9 2030#endif
a0d0e21e
LW		 2031 RETURN;
2032}
2033
2034PP(pp_seek)
2035{
cea2e8a9 2036 return pp_sysseek();
137443ea 2037}
2038
2039PP(pp_sysseek)
2040{
27da23d5 2041 dVAR; dSP;
a0d0e21e 2042 GV *gv;
5b468f54 2043 IO *io;
1df70142 2044 const int whence = POPi;
146174a9
CB		 2045#if LSEEKSIZE > IVSIZE
2046 Off_t offset = (Off_t)SvNVx(POPs);
2047#else
d9b3e12d 2048 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2049#endif
4592e6ca 2050 MAGIC *mg;
a0d0e21e 2051
3280af22 2052 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2053
5b468f54
AMS		 2054 if (gv && (io = GvIO(gv))
2055 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2056 {
4592e6ca 2057 PUSHMARK(SP);
5b468f54 2058 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2059#if LSEEKSIZE > IVSIZE
2060 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2061#else
b448e4fe 2062 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2063#endif
b448e4fe 2064 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2065 PUTBACK;
2066 ENTER;
864dbfa3 2067 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2068 LEAVE;
2069 SPAGAIN;
2070 RETURN;
2071 }
2072
533c011a 2073 if (PL_op->op_type == OP_SEEK)
8903cb82 2074 PUSHs(boolSV(do_seek(gv, offset, whence)));
2075 else {
b448e4fe
JH		 2076 Off_t sought = do_sysseek(gv, offset, whence);
2077 if (sought < 0)
146174a9
CB		 2078 PUSHs(&PL_sv_undef);
2079 else {
b448e4fe 2080 SV* sv = sought ?
146174a9 2081#if LSEEKSIZE > IVSIZE
b448e4fe 2082 newSVnv((NV)sought)
146174a9 2083#else
b448e4fe 2084 newSViv(sought)
146174a9
CB		 2085#endif
2086 : newSVpvn(zero_but_true, ZBTLEN);
2087 PUSHs(sv_2mortal(sv));
2088 }
8903cb82 2089 }
a0d0e21e
LW		 2090 RETURN;
2091}
2092
2093PP(pp_truncate)
2094{
39644a26 2095 dSP;
8c99d73e
GS		 2096 /* There seems to be no consensus on the length type of truncate()
2097 * and ftruncate(), both off_t and size_t have supporters. In
2098 * general one would think that when using large files, off_t is
2099 * at least as wide as size_t, so using an off_t should be okay. */
2100 /* XXX Configure probe for the length type of *truncate() needed XXX */
2101 Off_t len;
a0d0e21e 2102
25342a55 2103#if Off_t_size > IVSIZE
8c99d73e
GS		 2104 len = (Off_t)POPn;
2105#else
2106 len = (Off_t)POPi;
2107#endif
2108 /* Checking for length < 0 is problematic as the type might or
301e8125 2109 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2110 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2111 SETERRNO(0,0);
d05c1ba0 2112 {
d05c1ba0
JH		 2113 int result = 1;
2114 GV *tmpgv;
090bf15b
SR		 2115 IO *io;
2116
d05c1ba0 2117 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2118 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2119
090bf15b
SR		 2120 do_ftruncate_gv:
2121 if (!GvIO(tmpgv))
2122 result = 0;
d05c1ba0 2123 else {
090bf15b
SR		 2124 PerlIO *fp;
2125 io = GvIOp(tmpgv);
2126 do_ftruncate_io:
2127 TAINT_PROPER("truncate");
2128 if (!(fp = IoIFP(io))) {
2129 result = 0;
2130 }
2131 else {
2132 PerlIO_flush(fp);
cbdc8872 2133#ifdef HAS_TRUNCATE
090bf15b 2134 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2135#else
090bf15b 2136 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2137#endif
090bf15b
SR		 2138 result = 0;
2139 }
d05c1ba0 2140 }
cbdc8872 2141 }
d05c1ba0
JH		 2142 else {
2143 SV *sv = POPs;
83003860 2144 const char *name;
7a5fd60d 2145
d05c1ba0
JH		 2146 if (SvTYPE(sv) == SVt_PVGV) {
2147 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2148 goto do_ftruncate_gv;
d05c1ba0
JH		 2149 }
2150 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2151 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2152 goto do_ftruncate_gv;
2153 }
2154 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2155 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2156 goto do_ftruncate_io;
d05c1ba0 2157 }
1e422769 2158
83003860 2159 name = SvPV_nolen_const(sv);
d05c1ba0 2160 TAINT_PROPER("truncate");
cbdc8872 2161#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2162 if (truncate(name, len) < 0)
2163 result = 0;
cbdc8872 2164#else
d05c1ba0
JH		 2165 {
2166 int tmpfd;
2167
2168 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2169 result = 0;
d05c1ba0
JH		 2170 else {
2171 if (my_chsize(tmpfd, len) < 0)
2172 result = 0;
2173 PerlLIO_close(tmpfd);
2174 }
cbdc8872 2175 }
a0d0e21e 2176#endif
d05c1ba0 2177 }
a0d0e21e 2178
d05c1ba0
JH		 2179 if (result)
2180 RETPUSHYES;
2181 if (!errno)
93189314 2182 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2183 RETPUSHUNDEF;
2184 }
a0d0e21e
LW		 2185}
2186
2187PP(pp_fcntl)
2188{
cea2e8a9 2189 return pp_ioctl();
a0d0e21e
LW		 2190}
2191
2192PP(pp_ioctl)
2193{
39644a26 2194 dSP; dTARGET;
748a9306 2195 SV *argsv = POPs;
1df70142 2196 const unsigned int func = POPu;
e1ec3a88 2197 const int optype = PL_op->op_type;
a0d0e21e 2198 char *s;
324aa91a 2199 IV retval;
a0d0e21e 2200 GV *gv = (GV*)POPs;
c289d2f7 2201 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2202
748a9306 2203 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2204 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2205 report_evil_fh(gv, io, PL_op->op_type);
93189314 2206 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2207 RETPUSHUNDEF;
2208 }
2209
748a9306 2210 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2211 STRLEN len;
324aa91a 2212 STRLEN need;
748a9306 2213 s = SvPV_force(argsv, len);
324aa91a
HF		 2214 need = IOCPARM_LEN(func);
2215 if (len < need) {
2216 s = Sv_Grow(argsv, need + 1);
2217 SvCUR_set(argsv, need);
a0d0e21e
LW		 2218 }
2219
748a9306 2220 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2221 }
2222 else {
748a9306 2223 retval = SvIV(argsv);
c529f79d 2224 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2225 }
2226
2227 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2228
2229 if (optype == OP_IOCTL)
2230#ifdef HAS_IOCTL
76e3520e 2231 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2232#else
cea2e8a9 2233 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2234#endif
2235 else
c214f4ad
WB		 2236#ifndef HAS_FCNTL
2237 DIE(aTHX_ "fcntl is not implemented");
2238#else
55497cff 2239#if defined(OS2) && defined(__EMX__)
760ac839 2240 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2241#else
760ac839 2242 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2243#endif
6652bd42 2244#endif
a0d0e21e 2245
6652bd42 2246#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2247 if (SvPOK(argsv)) {
2248 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2249 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2250 OP_NAME(PL_op));
748a9306
LW		 2251 s[SvCUR(argsv)] = 0; /* put our null back */
2252 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2253 }
2254
2255 if (retval == -1)
2256 RETPUSHUNDEF;
2257 if (retval != 0) {
2258 PUSHi(retval);
2259 }
2260 else {
8903cb82 2261 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2262 }
4808266b 2263#endif
c214f4ad 2264 RETURN;
a0d0e21e
LW		 2265}
2266
2267PP(pp_flock)
2268{
9cad6237 2269#ifdef FLOCK
39644a26 2270 dSP; dTARGET;
a0d0e21e
LW		 2271 I32 value;
2272 int argtype;
2273 GV *gv;
bc37a18f 2274 IO *io = NULL;
760ac839 2275 PerlIO *fp;
16d20bd9 2276
a0d0e21e 2277 argtype = POPi;
32da55ab 2278 if (MAXARG == 0)
3280af22 2279 gv = PL_last_in_gv;
a0d0e21e
LW		 2280 else
2281 gv = (GV*)POPs;
bc37a18f
RG		 2282 if (gv && (io = GvIO(gv)))
2283 fp = IoIFP(io);
2284 else {
a0d0e21e 2285 fp = Nullfp;
bc37a18f
RG		 2286 io = NULL;
2287 }
a0d0e21e 2288 if (fp) {
68dc0745 2289 (void)PerlIO_flush(fp);
76e3520e 2290 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2291 }
cb50131a 2292 else {
bc37a18f
RG		 2293 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2294 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2295 value = 0;
93189314 2296 SETERRNO(EBADF,RMS_IFI);
cb50131a 2297 }
a0d0e21e
LW		 2298 PUSHi(value);
2299 RETURN;
2300#else
cea2e8a9 2301 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2302#endif
2303}
2304
2305/* Sockets. */
2306
2307PP(pp_socket)
2308{
a0d0e21e 2309#ifdef HAS_SOCKET
9cad6237 2310 dSP;
a0d0e21e
LW		 2311 GV *gv;
2312 register IO *io;
2313 int protocol = POPi;
2314 int type = POPi;
2315 int domain = POPi;
2316 int fd;
2317
2318 gv = (GV*)POPs;
c289d2f7 2319 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2320
c289d2f7
JH		 2321 if (!gv || !io) {
2322 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2323 report_evil_fh(gv, io, PL_op->op_type);
2324 if (IoIFP(io))
2325 do_close(gv, FALSE);
93189314 2326 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2327 RETPUSHUNDEF;
2328 }
2329
57171420
BS		 2330 if (IoIFP(io))
2331 do_close(gv, FALSE);
2332
a0d0e21e 2333 TAINT_PROPER("socket");
6ad3d225 2334 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2335 if (fd < 0)
2336 RETPUSHUNDEF;
460c8493
IZ		 2337 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2338 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2339 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2340 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2341 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2342 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2343 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2344 RETPUSHUNDEF;
2345 }
8d2a6795
GS		 2346#if defined(HAS_FCNTL) && defined(F_SETFD)
2347 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2348#endif
a0d0e21e 2349
d5ff79b3
OF		 2350#ifdef EPOC
2351 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2352#endif
2353
a0d0e21e
LW		 2354 RETPUSHYES;
2355#else
cea2e8a9 2356 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2357#endif
2358}
2359
2360PP(pp_sockpair)
2361{
c95c94b1 2362#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2363 dSP;
a0d0e21e
LW		 2364 GV *gv1;
2365 GV *gv2;
2366 register IO *io1;
2367 register IO *io2;
2368 int protocol = POPi;
2369 int type = POPi;
2370 int domain = POPi;
2371 int fd[2];
2372
2373 gv2 = (GV*)POPs;
2374 gv1 = (GV*)POPs;
c289d2f7
JH		 2375 io1 = gv1 ? GvIOn(gv1) : NULL;
2376 io2 = gv2 ? GvIOn(gv2) : NULL;
2377 if (!gv1 || !gv2 || !io1 || !io2) {
2378 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2379 if (!gv1 || !io1)
2380 report_evil_fh(gv1, io1, PL_op->op_type);
2381 if (!gv2 || !io2)
2382 report_evil_fh(gv1, io2, PL_op->op_type);
2383 }
2384 if (IoIFP(io1))
2385 do_close(gv1, FALSE);
2386 if (IoIFP(io2))
2387 do_close(gv2, FALSE);
a0d0e21e 2388 RETPUSHUNDEF;
c289d2f7 2389 }
a0d0e21e 2390
dc0d0a5f
JH		 2391 if (IoIFP(io1))
2392 do_close(gv1, FALSE);
2393 if (IoIFP(io2))
2394 do_close(gv2, FALSE);
57171420 2395
a0d0e21e 2396 TAINT_PROPER("socketpair");
6ad3d225 2397 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2398 RETPUSHUNDEF;
460c8493
IZ		 2399 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2400 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2401 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2402 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2403 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2404 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2405 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2406 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2407 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2408 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2409 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2410 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2411 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2412 RETPUSHUNDEF;
2413 }
8d2a6795
GS		 2414#if defined(HAS_FCNTL) && defined(F_SETFD)
2415 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2416 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2417#endif
a0d0e21e
LW		 2418
2419 RETPUSHYES;
2420#else
cea2e8a9 2421 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2422#endif
2423}
2424
2425PP(pp_bind)
2426{
a0d0e21e 2427#ifdef HAS_SOCKET
9cad6237 2428 dSP;
eec2d3df 2429#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2430 extern void GETPRIVMODE();
2431 extern void GETUSERMODE();
eec2d3df 2432#endif
748a9306 2433 SV *addrsv = POPs;
a0d0e21e
LW		 2434 char *addr;
2435 GV *gv = (GV*)POPs;
2436 register IO *io = GvIOn(gv);
2437 STRLEN len;
eec2d3df
GS		 2438 int bind_ok = 0;
2439#ifdef MPE
2440 int mpeprivmode = 0;
2441#endif
a0d0e21e
LW		 2442
2443 if (!io || !IoIFP(io))
2444 goto nuts;
2445
748a9306 2446 addr = SvPV(addrsv, len);
a0d0e21e 2447 TAINT_PROPER("bind");
eec2d3df
GS		 2448#ifdef MPE /* Deal with MPE bind() peculiarities */
2449 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2450 /* The address *MUST* stupidly be zero. */
2451 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2452 /* PRIV mode is required to bind() to ports < 1024. */
2453 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2454 ((struct sockaddr_in *)addr)->sin_port > 0) {
2455 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2456 mpeprivmode = 1;
2457 }
2458 }
2459#endif /* MPE */
2460 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2461 (struct sockaddr *)addr, len) >= 0)
2462 bind_ok = 1;
2463
2464#ifdef MPE /* Switch back to USER mode */
2465 if (mpeprivmode)
2466 GETUSERMODE();
2467#endif /* MPE */
2468
2469 if (bind_ok)
a0d0e21e
LW		 2470 RETPUSHYES;
2471 else
2472 RETPUSHUNDEF;
2473
2474nuts:
599cee73 2475 if (ckWARN(WARN_CLOSED))
bc37a18f 2476 report_evil_fh(gv, io, PL_op->op_type);
93189314 2477 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2478 RETPUSHUNDEF;
2479#else
cea2e8a9 2480 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2481#endif
2482}
2483
2484PP(pp_connect)
2485{
a0d0e21e 2486#ifdef HAS_SOCKET
9cad6237 2487 dSP;
748a9306 2488 SV *addrsv = POPs;
a0d0e21e
LW		 2489 char *addr;
2490 GV *gv = (GV*)POPs;
2491 register IO *io = GvIOn(gv);
2492 STRLEN len;
2493
2494 if (!io || !IoIFP(io))
2495 goto nuts;
2496
748a9306 2497 addr = SvPV(addrsv, len);
a0d0e21e 2498 TAINT_PROPER("connect");
6ad3d225 2499 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2500 RETPUSHYES;
2501 else
2502 RETPUSHUNDEF;
2503
2504nuts:
599cee73 2505 if (ckWARN(WARN_CLOSED))
bc37a18f 2506 report_evil_fh(gv, io, PL_op->op_type);
93189314 2507 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2508 RETPUSHUNDEF;
2509#else
cea2e8a9 2510 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2511#endif
2512}
2513
2514PP(pp_listen)
2515{
a0d0e21e 2516#ifdef HAS_SOCKET
9cad6237 2517 dSP;
a0d0e21e
LW		 2518 int backlog = POPi;
2519 GV *gv = (GV*)POPs;
c289d2f7 2520 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2521
c289d2f7 2522 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2523 goto nuts;
2524
6ad3d225 2525 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2526 RETPUSHYES;
2527 else
2528 RETPUSHUNDEF;
2529
2530nuts:
599cee73 2531 if (ckWARN(WARN_CLOSED))
bc37a18f 2532 report_evil_fh(gv, io, PL_op->op_type);
93189314 2533 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2534 RETPUSHUNDEF;
2535#else
cea2e8a9 2536 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2537#endif
2538}
2539
2540PP(pp_accept)
2541{
a0d0e21e 2542#ifdef HAS_SOCKET
9cad6237 2543 dSP; dTARGET;
a0d0e21e
LW		 2544 GV *ngv;
2545 GV *ggv;
2546 register IO *nstio;
2547 register IO *gstio;
93d47a36
JH		 2548 char namebuf[MAXPATHLEN];
2549#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2550 Sock_size_t len = sizeof (struct sockaddr_in);
2551#else
2552 Sock_size_t len = sizeof namebuf;
2553#endif
a0d0e21e
LW		 2554 int fd;
2555
2556 ggv = (GV*)POPs;
2557 ngv = (GV*)POPs;
2558
2559 if (!ngv)
2560 goto badexit;
2561 if (!ggv)
2562 goto nuts;
2563
2564 gstio = GvIO(ggv);
2565 if (!gstio || !IoIFP(gstio))
2566 goto nuts;
2567
2568 nstio = GvIOn(ngv);
93d47a36 2569 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2570 if (fd < 0)
2571 goto badexit;
a70048fb
AB		 2572 if (IoIFP(nstio))
2573 do_close(ngv, FALSE);
460c8493
IZ		 2574 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2575 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2576 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2577 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2578 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2579 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2580 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2581 goto badexit;
2582 }
8d2a6795
GS		 2583#if defined(HAS_FCNTL) && defined(F_SETFD)
2584 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2585#endif
a0d0e21e 2586
ed79a026 2587#ifdef EPOC
93d47a36 2588 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2589 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2590#endif
381c1bae 2591#ifdef __SCO_VERSION__
93d47a36 2592 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2593#endif
ed79a026 2594
93d47a36 2595 PUSHp(namebuf, len);
a0d0e21e
LW		 2596 RETURN;
2597
2598nuts:
599cee73 2599 if (ckWARN(WARN_CLOSED))
bc37a18f 2600 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2601 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2602
2603badexit:
2604 RETPUSHUNDEF;
2605
2606#else
cea2e8a9 2607 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2608#endif
2609}
2610
2611PP(pp_shutdown)
2612{
a0d0e21e 2613#ifdef HAS_SOCKET
9cad6237 2614 dSP; dTARGET;
a0d0e21e
LW		 2615 int how = POPi;
2616 GV *gv = (GV*)POPs;
2617 register IO *io = GvIOn(gv);
2618
2619 if (!io || !IoIFP(io))
2620 goto nuts;
2621
6ad3d225 2622 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2623 RETURN;
2624
2625nuts:
599cee73 2626 if (ckWARN(WARN_CLOSED))
bc37a18f 2627 report_evil_fh(gv, io, PL_op->op_type);
93189314 2628 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2629 RETPUSHUNDEF;
2630#else
cea2e8a9 2631 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2632#endif
2633}
2634
2635PP(pp_gsockopt)
2636{
2637#ifdef HAS_SOCKET
cea2e8a9 2638 return pp_ssockopt();
a0d0e21e 2639#else
cea2e8a9 2640 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2641#endif
2642}
2643
2644PP(pp_ssockopt)
2645{
a0d0e21e 2646#ifdef HAS_SOCKET
9cad6237 2647 dSP;
533c011a 2648 int optype = PL_op->op_type;
a0d0e21e
LW		 2649 SV *sv;
2650 int fd;
2651 unsigned int optname;
2652 unsigned int lvl;
2653 GV *gv;
2654 register IO *io;
1e422769 2655 Sock_size_t len;
a0d0e21e
LW		 2656
2657 if (optype == OP_GSOCKOPT)
2658 sv = sv_2mortal(NEWSV(22, 257));
2659 else
2660 sv = POPs;
2661 optname = (unsigned int) POPi;
2662 lvl = (unsigned int) POPi;
2663
2664 gv = (GV*)POPs;
2665 io = GvIOn(gv);
2666 if (!io || !IoIFP(io))
2667 goto nuts;
2668
760ac839 2669 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2670 switch (optype) {
2671 case OP_GSOCKOPT:
748a9306 2672 SvGROW(sv, 257);
a0d0e21e 2673 (void)SvPOK_only(sv);
748a9306
LW		 2674 SvCUR_set(sv,256);
2675 *SvEND(sv) ='\0';
1e422769 2676 len = SvCUR(sv);
6ad3d225 2677 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2678 goto nuts2;
1e422769 2679 SvCUR_set(sv, len);
748a9306 2680 *SvEND(sv) ='\0';
a0d0e21e
LW		 2681 PUSHs(sv);
2682 break;
2683 case OP_SSOCKOPT: {
1e422769 2684 char *buf;
2685 int aint;
2686 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2687 STRLEN l;
2688 buf = SvPV(sv, l);
2689 len = l;
1e422769 2690 }
56ee1660 2691 else {
a0d0e21e
LW		 2692 aint = (int)SvIV(sv);
2693 buf = (char*)&aint;
2694 len = sizeof(int);
2695 }
6ad3d225 2696 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2697 goto nuts2;
3280af22 2698 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2699 }
2700 break;
2701 }
2702 RETURN;
2703
2704nuts:
599cee73 2705 if (ckWARN(WARN_CLOSED))
bc37a18f 2706 report_evil_fh(gv, io, optype);
93189314 2707 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2708nuts2:
2709 RETPUSHUNDEF;
2710
2711#else
cea2e8a9 2712 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2713#endif
2714}
2715
2716PP(pp_getsockname)
2717{
2718#ifdef HAS_SOCKET
cea2e8a9 2719 return pp_getpeername();
a0d0e21e 2720#else
cea2e8a9 2721 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2722#endif
2723}
2724
2725PP(pp_getpeername)
2726{
a0d0e21e 2727#ifdef HAS_SOCKET
9cad6237 2728 dSP;
533c011a 2729 int optype = PL_op->op_type;
a0d0e21e
LW		 2730 SV *sv;
2731 int fd;
2732 GV *gv = (GV*)POPs;
2733 register IO *io = GvIOn(gv);
1e422769 2734 Sock_size_t len;
a0d0e21e
LW		 2735
2736 if (!io || !IoIFP(io))
2737 goto nuts;
2738
2739 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2740 (void)SvPOK_only(sv);
1e422769 2741 len = 256;
2742 SvCUR_set(sv, len);
748a9306 2743 *SvEND(sv) ='\0';
760ac839 2744 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2745 switch (optype) {
2746 case OP_GETSOCKNAME:
6ad3d225 2747 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2748 goto nuts2;
2749 break;
2750 case OP_GETPEERNAME:
6ad3d225 2751 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2752 goto nuts2;
490ab354
JH		 2753#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2754 {
2755 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";
2756 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2757 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2758 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2759 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2760 goto nuts2;
490ab354
JH		 2761 }
2762 }
2763#endif
a0d0e21e
LW		 2764 break;
2765 }
13826f2c
CS		 2766#ifdef BOGUS_GETNAME_RETURN
2767 /* Interactive Unix, getpeername() and getsockname()
2768 does not return valid namelen */
1e422769 2769 if (len == BOGUS_GETNAME_RETURN)
2770 len = sizeof(struct sockaddr);
13826f2c 2771#endif
1e422769 2772 SvCUR_set(sv, len);
748a9306 2773 *SvEND(sv) ='\0';
a0d0e21e
LW		 2774 PUSHs(sv);
2775 RETURN;
2776
2777nuts:
599cee73 2778 if (ckWARN(WARN_CLOSED))
bc37a18f 2779 report_evil_fh(gv, io, optype);
93189314 2780 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2781nuts2:
2782 RETPUSHUNDEF;
2783
2784#else
cea2e8a9 2785 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2786#endif
2787}
2788
2789/* Stat calls. */
2790
2791PP(pp_lstat)
2792{
cea2e8a9 2793 return pp_stat();
a0d0e21e
LW		 2794}
2795
2796PP(pp_stat)
2797{
39644a26 2798 dSP;
2dd78f96 2799 GV *gv;
54310121 2800 I32 gimme;
a0d0e21e 2801 I32 max = 13;
2d8e6c8d 2802 STRLEN n_a;
a0d0e21e 2803
533c011a 2804 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2805 gv = cGVOP_gv;
8a4e5b40 2806 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2807 if (gv != PL_defgv) {
2808 if (ckWARN(WARN_IO))
9014280d 2809 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2810 "lstat() on filehandle %s", GvENAME(gv));
2811 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2812 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2813 }
2814
748a9306 2815 do_fstat:
2dd78f96 2816 if (gv != PL_defgv) {
3280af22 2817 PL_laststype = OP_STAT;
2dd78f96 2818 PL_statgv = gv;
c69006e4 2819 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2820 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2821 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2822 }
9ddeeac9 2823 if (PL_laststatval < 0) {
2dd78f96
JH		 2824 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2825 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2826 max = 0;
9ddeeac9 2827 }
a0d0e21e
LW		 2828 }
2829 else {
748a9306
LW		 2830 SV* sv = POPs;
2831 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2832 gv = (GV*)sv;
748a9306
LW		 2833 goto do_fstat;
2834 }
2835 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2836 gv = (GV*)SvRV(sv);
5d3e98de 2837 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2838 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2839 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2840 goto do_fstat;
2841 }
5c144d81 2842 sv_setpv(PL_statname, SvPV_const(sv,n_a));
3280af22 2843 PL_statgv = Nullgv;
533c011a
NIS		 2844 PL_laststype = PL_op->op_type;
2845 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2846 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2847 else
2d8e6c8d 2848 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2849 if (PL_laststatval < 0) {
2d8e6c8d 2850 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2851 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2852 max = 0;
2853 }
2854 }
2855
54310121 2856 gimme = GIMME_V;
2857 if (gimme != G_ARRAY) {
2858 if (gimme != G_VOID)
2859 XPUSHs(boolSV(max));
2860 RETURN;
a0d0e21e
LW		 2861 }
2862 if (max) {
36477c24 2863 EXTEND(SP, max);
2864 EXTEND_MORTAL(max);
1ff81528
PL		 2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2866 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2867 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2868 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2869#if Uid_t_size > IVSIZE
2870 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2871#else
23dcd6c8 2872# if Uid_t_sign <= 0
1ff81528 2873 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2874# else
2875 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2876# endif
146174a9 2877#endif
301e8125 2878#if Gid_t_size > IVSIZE
146174a9
CB		 2879 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2880#else
23dcd6c8 2881# if Gid_t_sign <= 0
1ff81528 2882 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2883# else
2884 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2885# endif
146174a9 2886#endif
cbdc8872 2887#ifdef USE_STAT_RDEV
1ff81528 2888 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2889#else
79cb57f6 2890 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2891#endif
146174a9 2892#if Off_t_size > IVSIZE
4a9d6100 2893 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2894#else
1ff81528 2895 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2896#endif
cbdc8872 2897#ifdef BIG_TIME
172ae379
JH		 2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2900 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2901#else
1ff81528
PL		 2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2905#endif
a0d0e21e 2906#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2907 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2908 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2909#else
79cb57f6
GS		 2910 PUSHs(sv_2mortal(newSVpvn("", 0)));
2911 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2912#endif
2913 }
2914 RETURN;
2915}
2916
fbb0b3b3
RGS		 2917/* This macro is used by the stacked filetest operators :
2918 * if the previous filetest failed, short-circuit and pass its value.
2919 * Else, discard it from the stack and continue. --rgs
2920 */
2921#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2922 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2923 else { (void)POPs; PUTBACK; } \
2924 }
2925
a0d0e21e
LW		 2926PP(pp_ftrread)
2927{
9cad6237 2928 I32 result;
2a3ff820 2929 dSP;
fbb0b3b3 2930 STACKED_FTEST_CHECK;
5ff3f7a4 2931#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2932 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2933 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2934 if (result == 0)
2935 RETPUSHYES;
2936 if (result < 0)
2937 RETPUSHUNDEF;
2938 RETPUSHNO;
22865c03
GS		 2939 }
2940 else
cea2e8a9 2941 result = my_stat();
5ff3f7a4 2942#else
cea2e8a9 2943 result = my_stat();
5ff3f7a4 2944#endif
22865c03 2945 SPAGAIN;
a0d0e21e
LW		 2946 if (result < 0)
2947 RETPUSHUNDEF;
3280af22 2948 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2949 RETPUSHYES;
2950 RETPUSHNO;
2951}
2952
2953PP(pp_ftrwrite)
2954{
9cad6237 2955 I32 result;
2a3ff820 2956 dSP;
fbb0b3b3 2957 STACKED_FTEST_CHECK;
5ff3f7a4 2958#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2959 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2960 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2961 if (result == 0)
2962 RETPUSHYES;
2963 if (result < 0)
2964 RETPUSHUNDEF;
2965 RETPUSHNO;
22865c03
GS		 2966 }
2967 else
cea2e8a9 2968 result = my_stat();
5ff3f7a4 2969#else
cea2e8a9 2970 result = my_stat();
5ff3f7a4 2971#endif
22865c03 2972 SPAGAIN;
a0d0e21e
LW		 2973 if (result < 0)
2974 RETPUSHUNDEF;
3280af22 2975 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2976 RETPUSHYES;
2977 RETPUSHNO;
2978}
2979
2980PP(pp_ftrexec)
2981{
9cad6237 2982 I32 result;
2a3ff820 2983 dSP;
fbb0b3b3 2984 STACKED_FTEST_CHECK;
5ff3f7a4 2985#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2986 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2987 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2988 if (result == 0)
2989 RETPUSHYES;
2990 if (result < 0)
2991 RETPUSHUNDEF;
2992 RETPUSHNO;
22865c03
GS		 2993 }
2994 else
cea2e8a9 2995 result = my_stat();
5ff3f7a4 2996#else
cea2e8a9 2997 result = my_stat();
5ff3f7a4 2998#endif
22865c03 2999 SPAGAIN;
a0d0e21e
LW		 3000 if (result < 0)
3001 RETPUSHUNDEF;
3280af22 3002 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3003 RETPUSHYES;
3004 RETPUSHNO;
3005}
3006
3007PP(pp_fteread)
3008{
9cad6237 3009 I32 result;
2a3ff820 3010 dSP;
fbb0b3b3 3011 STACKED_FTEST_CHECK;
5ff3f7a4 3012#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3013 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3014 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3015 if (result == 0)
3016 RETPUSHYES;
3017 if (result < 0)
3018 RETPUSHUNDEF;
3019 RETPUSHNO;
22865c03
GS		 3020 }
3021 else
cea2e8a9 3022 result = my_stat();
5ff3f7a4 3023#else
cea2e8a9 3024 result = my_stat();
5ff3f7a4 3025#endif
22865c03 3026 SPAGAIN;
a0d0e21e
LW		 3027 if (result < 0)
3028 RETPUSHUNDEF;
3280af22 3029 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3030 RETPUSHYES;
3031 RETPUSHNO;
3032}
3033
3034PP(pp_ftewrite)
3035{
9cad6237 3036 I32 result;
2a3ff820 3037 dSP;
fbb0b3b3 3038 STACKED_FTEST_CHECK;
5ff3f7a4 3039#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3040 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3041 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3042 if (result == 0)
3043 RETPUSHYES;
3044 if (result < 0)
3045 RETPUSHUNDEF;
3046 RETPUSHNO;
22865c03
GS		 3047 }
3048 else
cea2e8a9 3049 result = my_stat();
5ff3f7a4 3050#else
cea2e8a9 3051 result = my_stat();
5ff3f7a4 3052#endif
22865c03 3053 SPAGAIN;
a0d0e21e
LW		 3054 if (result < 0)
3055 RETPUSHUNDEF;
3280af22 3056 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3057 RETPUSHYES;
3058 RETPUSHNO;
3059}
3060
3061PP(pp_fteexec)
3062{
9cad6237 3063 I32 result;
2a3ff820 3064 dSP;
fbb0b3b3 3065 STACKED_FTEST_CHECK;
5ff3f7a4 3066#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3067 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3068 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3069 if (result == 0)
3070 RETPUSHYES;
3071 if (result < 0)
3072 RETPUSHUNDEF;
3073 RETPUSHNO;
22865c03
GS		 3074 }
3075 else
cea2e8a9 3076 result = my_stat();
5ff3f7a4 3077#else
cea2e8a9 3078 result = my_stat();
5ff3f7a4 3079#endif
22865c03 3080 SPAGAIN;
a0d0e21e
LW		 3081 if (result < 0)
3082 RETPUSHUNDEF;
3280af22 3083 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3084 RETPUSHYES;
3085 RETPUSHNO;
3086}
3087
3088PP(pp_ftis)
3089{
fbb0b3b3 3090 I32 result;
2a3ff820 3091 dSP;
fbb0b3b3
RGS		 3092 STACKED_FTEST_CHECK;
3093 result = my_stat();
3094 SPAGAIN;
a0d0e21e
LW		 3095 if (result < 0)
3096 RETPUSHUNDEF;
3097 RETPUSHYES;
3098}
3099
3100PP(pp_fteowned)
3101{
cea2e8a9 3102 return pp_ftrowned();
a0d0e21e
LW		 3103}
3104
3105PP(pp_ftrowned)
3106{
fbb0b3b3 3107 I32 result;
2a3ff820 3108 dSP;
fbb0b3b3
RGS		 3109 STACKED_FTEST_CHECK;
3110 result = my_stat();
3111 SPAGAIN;
a0d0e21e
LW		 3112 if (result < 0)
3113 RETPUSHUNDEF;
146174a9
CB		 3114 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3115 PL_euid : PL_uid) )
a0d0e21e
LW		 3116 RETPUSHYES;
3117 RETPUSHNO;
3118}
3119
3120PP(pp_ftzero)
3121{
fbb0b3b3 3122 I32 result;
2a3ff820 3123 dSP;
fbb0b3b3
RGS		 3124 STACKED_FTEST_CHECK;
3125 result = my_stat();
3126 SPAGAIN;
a0d0e21e
LW		 3127 if (result < 0)
3128 RETPUSHUNDEF;
146174a9 3129 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3130 RETPUSHYES;
3131 RETPUSHNO;
3132}
3133
3134PP(pp_ftsize)
3135{
fbb0b3b3 3136 I32 result;
2a3ff820 3137 dSP; dTARGET;
fbb0b3b3
RGS		 3138 STACKED_FTEST_CHECK;
3139 result = my_stat();
3140 SPAGAIN;
a0d0e21e
LW		 3141 if (result < 0)
3142 RETPUSHUNDEF;
146174a9
CB		 3143#if Off_t_size > IVSIZE
3144 PUSHn(PL_statcache.st_size);
3145#else
3280af22 3146 PUSHi(PL_statcache.st_size);
146174a9 3147#endif
a0d0e21e
LW		 3148 RETURN;
3149}
3150
3151PP(pp_ftmtime)
3152{
fbb0b3b3 3153 I32 result;
2a3ff820 3154 dSP; dTARGET;
fbb0b3b3
RGS		 3155 STACKED_FTEST_CHECK;
3156 result = my_stat();
3157 SPAGAIN;
a0d0e21e
LW		 3158 if (result < 0)
3159 RETPUSHUNDEF;
a80d47c2 3160 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3161 RETURN;
3162}
3163
3164PP(pp_ftatime)
3165{
fbb0b3b3 3166 I32 result;
2a3ff820 3167 dSP; dTARGET;
fbb0b3b3
RGS		 3168 STACKED_FTEST_CHECK;
3169 result = my_stat();
3170 SPAGAIN;
a0d0e21e
LW		 3171 if (result < 0)
3172 RETPUSHUNDEF;
a80d47c2 3173 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3174 RETURN;
3175}
3176
3177PP(pp_ftctime)
3178{
fbb0b3b3 3179 I32 result;
2a3ff820 3180 dSP; dTARGET;
fbb0b3b3
RGS		 3181 STACKED_FTEST_CHECK;
3182 result = my_stat();
3183 SPAGAIN;
a0d0e21e
LW		 3184 if (result < 0)
3185 RETPUSHUNDEF;
a80d47c2 3186 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3187 RETURN;
3188}
3189
3190PP(pp_ftsock)
3191{
fbb0b3b3 3192 I32 result;
2a3ff820 3193 dSP;
fbb0b3b3
RGS		 3194 STACKED_FTEST_CHECK;
3195 result = my_stat();
3196 SPAGAIN;
a0d0e21e
LW		 3197 if (result < 0)
3198 RETPUSHUNDEF;
3280af22 3199 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3200 RETPUSHYES;
3201 RETPUSHNO;
3202}
3203
3204PP(pp_ftchr)
3205{
fbb0b3b3 3206 I32 result;
2a3ff820 3207 dSP;
fbb0b3b3
RGS		 3208 STACKED_FTEST_CHECK;
3209 result = my_stat();
3210 SPAGAIN;
a0d0e21e
LW		 3211 if (result < 0)
3212 RETPUSHUNDEF;
3280af22 3213 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3214 RETPUSHYES;
3215 RETPUSHNO;
3216}
3217
3218PP(pp_ftblk)
3219{
fbb0b3b3 3220 I32 result;
2a3ff820 3221 dSP;
fbb0b3b3
RGS		 3222 STACKED_FTEST_CHECK;
3223 result = my_stat();
3224 SPAGAIN;
a0d0e21e
LW		 3225 if (result < 0)
3226 RETPUSHUNDEF;
3280af22 3227 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3228 RETPUSHYES;
3229 RETPUSHNO;
3230}
3231
3232PP(pp_ftfile)
3233{
fbb0b3b3 3234 I32 result;
2a3ff820 3235 dSP;
fbb0b3b3
RGS		 3236 STACKED_FTEST_CHECK;
3237 result = my_stat();
3238 SPAGAIN;
a0d0e21e
LW		 3239 if (result < 0)
3240 RETPUSHUNDEF;
3280af22 3241 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3242 RETPUSHYES;
3243 RETPUSHNO;
3244}
3245
3246PP(pp_ftdir)
3247{
fbb0b3b3 3248 I32 result;
2a3ff820 3249 dSP;
fbb0b3b3
RGS		 3250 STACKED_FTEST_CHECK;
3251 result = my_stat();
3252 SPAGAIN;
a0d0e21e
LW		 3253 if (result < 0)
3254 RETPUSHUNDEF;
3280af22 3255 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3256 RETPUSHYES;
3257 RETPUSHNO;
3258}
3259
3260PP(pp_ftpipe)
3261{
fbb0b3b3 3262 I32 result;
2a3ff820 3263 dSP;
fbb0b3b3
RGS		 3264 STACKED_FTEST_CHECK;
3265 result = my_stat();
3266 SPAGAIN;
a0d0e21e
LW		 3267 if (result < 0)
3268 RETPUSHUNDEF;
3280af22 3269 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3270 RETPUSHYES;
3271 RETPUSHNO;
3272}
3273
3274PP(pp_ftlink)
3275{
9cad6237 3276 I32 result = my_lstat();
2a3ff820 3277 dSP;
a0d0e21e
LW		 3278 if (result < 0)
3279 RETPUSHUNDEF;
3280af22 3280 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3281 RETPUSHYES;
3282 RETPUSHNO;
3283}
3284
3285PP(pp_ftsuid)
3286{
39644a26 3287 dSP;
a0d0e21e 3288#ifdef S_ISUID
fbb0b3b3
RGS		 3289 I32 result;
3290 STACKED_FTEST_CHECK;
3291 result = my_stat();
a0d0e21e
LW		 3292 SPAGAIN;
3293 if (result < 0)
3294 RETPUSHUNDEF;
3280af22 3295 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3296 RETPUSHYES;
3297#endif
3298 RETPUSHNO;
3299}
3300
3301PP(pp_ftsgid)
3302{
39644a26 3303 dSP;
a0d0e21e 3304#ifdef S_ISGID
fbb0b3b3
RGS		 3305 I32 result;
3306 STACKED_FTEST_CHECK;
3307 result = my_stat();
a0d0e21e
LW		 3308 SPAGAIN;
3309 if (result < 0)
3310 RETPUSHUNDEF;
3280af22 3311 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3312 RETPUSHYES;
3313#endif
3314 RETPUSHNO;
3315}
3316
3317PP(pp_ftsvtx)
3318{
39644a26 3319 dSP;
a0d0e21e 3320#ifdef S_ISVTX
fbb0b3b3
RGS		 3321 I32 result;
3322 STACKED_FTEST_CHECK;
3323 result = my_stat();
a0d0e21e
LW		 3324 SPAGAIN;
3325 if (result < 0)
3326 RETPUSHUNDEF;
3280af22 3327 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3328 RETPUSHYES;
3329#endif
3330 RETPUSHNO;
3331}
3332
3333PP(pp_fttty)
3334{
39644a26 3335 dSP;
a0d0e21e
LW		 3336 int fd;
3337 GV *gv;
7a5fd60d 3338 SV *tmpsv = Nullsv;
fb73857a 3339
fbb0b3b3
RGS		 3340 STACKED_FTEST_CHECK;
3341
533c011a 3342 if (PL_op->op_flags & OPf_REF)
146174a9 3343 gv = cGVOP_gv;
fb73857a 3344 else if (isGV(TOPs))
3345 gv = (GV*)POPs;
3346 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3347 gv = (GV*)SvRV(POPs);
a0d0e21e 3348 else
7a5fd60d 3349 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3350
a0d0e21e 3351 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3352 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3353 else if (tmpsv && SvOK(tmpsv)) {
8c074e2a 3354 char *tmps = SvPV_nolen(tmpsv);
7a5fd60d
NC		 3355 if (isDIGIT(*tmps))
3356 fd = atoi(tmps);
3357 else
3358 RETPUSHUNDEF;
3359 }
a0d0e21e
LW		 3360 else
3361 RETPUSHUNDEF;
6ad3d225 3362 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3363 RETPUSHYES;
3364 RETPUSHNO;
3365}
3366
16d20bd9
AD		 3367#if defined(atarist) /* this will work with atariST. Configure will
3368 make guesses for other systems. */
3369# define FILE_base(f) ((f)->_base)
3370# define FILE_ptr(f) ((f)->_ptr)
3371# define FILE_cnt(f) ((f)->_cnt)
3372# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3373#endif
3374
3375PP(pp_fttext)
3376{
39644a26 3377 dSP;
a0d0e21e
LW		 3378 I32 i;
3379 I32 len;
3380 I32 odd = 0;
3381 STDCHAR tbuf[512];
3382 register STDCHAR *s;
3383 register IO *io;
5f05dabc 3384 register SV *sv;
3385 GV *gv;
146174a9 3386 PerlIO *fp;
a0d0e21e 3387
fbb0b3b3
RGS		 3388 STACKED_FTEST_CHECK;
3389
533c011a 3390 if (PL_op->op_flags & OPf_REF)
146174a9 3391 gv = cGVOP_gv;
5f05dabc 3392 else if (isGV(TOPs))
3393 gv = (GV*)POPs;
3394 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3395 gv = (GV*)SvRV(POPs);
3396 else
3397 gv = Nullgv;
3398
3399 if (gv) {
a0d0e21e 3400 EXTEND(SP, 1);
3280af22
NIS		 3401 if (gv == PL_defgv) {
3402 if (PL_statgv)
3403 io = GvIO(PL_statgv);
a0d0e21e 3404 else {
3280af22 3405 sv = PL_statname;
a0d0e21e
LW		 3406 goto really_filename;
3407 }
3408 }
3409 else {
3280af22
NIS		 3410 PL_statgv = gv;
3411 PL_laststatval = -1;
c69006e4 3412 sv_setpvn(PL_statname, "", 0);
3280af22 3413 io = GvIO(PL_statgv);
a0d0e21e
LW		 3414 }
3415 if (io && IoIFP(io)) {
5f05dabc 3416 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3417 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3418 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3419 if (PL_laststatval < 0)
5f05dabc 3420 RETPUSHUNDEF;
9cbac4c7 3421 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3422 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3423 RETPUSHNO;
3424 else
3425 RETPUSHYES;
9cbac4c7 3426 }
a20bf0c3 3427 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3428 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3429 if (i != EOF)
760ac839 3430 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3431 }
a20bf0c3 3432 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3433 RETPUSHYES;
a20bf0c3
JH		 3434 len = PerlIO_get_bufsiz(IoIFP(io));
3435 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3436 /* sfio can have large buffers - limit to 512 */
3437 if (len > 512)
3438 len = 512;
a0d0e21e
LW		 3439 }
3440 else {
2dd78f96 3441 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3442 gv = cGVOP_gv;
2dd78f96 3443 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3444 }
93189314 3445 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3446 RETPUSHUNDEF;
3447 }
3448 }
3449 else {
3450 sv = POPs;
5f05dabc 3451 really_filename:
3280af22 3452 PL_statgv = Nullgv;
5c9aa243 3453 PL_laststype = OP_STAT;
8c074e2a 3454 sv_setpv(PL_statname, SvPV_nolen(sv));
aa07b2f6 3455 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
8c074e2a 3456 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen(PL_statname), '\n'))
9014280d 3457 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3458 RETPUSHUNDEF;
3459 }
146174a9
CB		 3460 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3461 if (PL_laststatval < 0) {
3462 (void)PerlIO_close(fp);
5f05dabc 3463 RETPUSHUNDEF;
146174a9 3464 }
60382766 3465 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3466 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3467 (void)PerlIO_close(fp);
a0d0e21e 3468 if (len <= 0) {
533c011a 3469 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3470 RETPUSHNO; /* special case NFS directories */
3471 RETPUSHYES; /* null file is anything */
3472 }
3473 s = tbuf;
3474 }
3475
3476 /* now scan s to look for textiness */
4633a7c4 3477 /* XXX ASCII dependent code */
a0d0e21e 3478
146174a9
CB		 3479#if defined(DOSISH) || defined(USEMYBINMODE)
3480 /* ignore trailing ^Z on short files */
3481 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3482 --len;
3483#endif
3484
a0d0e21e
LW		 3485 for (i = 0; i < len; i++, s++) {
3486 if (!*s) { /* null never allowed in text */
3487 odd += len;
3488 break;
3489 }
9d116dd7 3490#ifdef EBCDIC
301e8125 3491 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3492 odd++;
3493#else
146174a9
CB		 3494 else if (*s & 128) {
3495#ifdef USE_LOCALE
2de3dbcc 3496 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3497 continue;
3498#endif
3499 /* utf8 characters don't count as odd */
fd400ab9 3500 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3501 int ulen = UTF8SKIP(s);
3502 if (ulen < len - i) {
3503 int j;
3504 for (j = 1; j < ulen; j++) {
fd400ab9 3505 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3506 goto not_utf8;
3507 }
3508 --ulen; /* loop does extra increment */
3509 s += ulen;
3510 i += ulen;
3511 continue;
3512 }
3513 }
3514 not_utf8:
3515 odd++;
146174a9 3516 }
a0d0e21e
LW		 3517 else if (*s < 32 &&
3518 *s != '\n' && *s != '\r' && *s != '\b' &&
3519 *s != '\t' && *s != '\f' && *s != 27)
3520 odd++;
9d116dd7 3521#endif
a0d0e21e
LW		 3522 }
3523
533c011a 3524 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3525 RETPUSHNO;
3526 else
3527 RETPUSHYES;
3528}
3529
3530PP(pp_ftbinary)
3531{
cea2e8a9 3532 return pp_fttext();
a0d0e21e
LW		 3533}
3534
3535/* File calls. */
3536
3537PP(pp_chdir)
3538{
39644a26 3539 dSP; dTARGET;
5c144d81 3540 const char *tmps;
a0d0e21e
LW		 3541 SV **svp;
3542
35ae6b54 3543 if( MAXARG == 1 )
5c144d81 3544 tmps = POPpconstx;
35ae6b54
MS		 3545 else
3546 tmps = 0;
3547
3548 if( !tmps || !*tmps ) {
3549 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3550 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3551#ifdef VMS
35ae6b54 3552 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3553#endif
35ae6b54
MS		 3554 )
3555 {
3556 if( MAXARG == 1 )
9014280d 3557 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3558 tmps = SvPV_nolen_const(*svp);
35ae6b54 3559 }
72f496dc 3560 else {
389ec635 3561 PUSHi(0);
b7ab37f8 3562 TAINT_PROPER("chdir");
389ec635
MS		 3563 RETURN;
3564 }
8ea155d1 3565 }
8ea155d1 3566
a0d0e21e 3567 TAINT_PROPER("chdir");
6ad3d225 3568 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3569#ifdef VMS
3570 /* Clear the DEFAULT element of ENV so we'll get the new value
3571 * in the future. */
6b88bc9c 3572 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3573#endif
a0d0e21e
LW		 3574 RETURN;
3575}
3576
3577PP(pp_chown)
3578{
a0d0e21e 3579#ifdef HAS_CHOWN
76ffd3b9
IZ		 3580 dSP; dMARK; dTARGET;
3581 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3582
a0d0e21e
LW		 3583 SP = MARK;
3584 PUSHi(value);
3585 RETURN;
3586#else
0322a713 3587 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3588#endif
3589}
3590
3591PP(pp_chroot)
3592{
a0d0e21e 3593#ifdef HAS_CHROOT
76ffd3b9 3594 dSP; dTARGET;
d05c1ba0 3595 char *tmps = POPpx;
a0d0e21e
LW		 3596 TAINT_PROPER("chroot");
3597 PUSHi( chroot(tmps) >= 0 );
3598 RETURN;
3599#else
cea2e8a9 3600 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3601#endif
3602}
3603
3604PP(pp_unlink)
3605{
39644a26 3606 dSP; dMARK; dTARGET;
a0d0e21e 3607 I32 value;
533c011a 3608 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3609 SP = MARK;
3610 PUSHi(value);
3611 RETURN;
3612}
3613
3614PP(pp_chmod)
3615{
39644a26 3616 dSP; dMARK; dTARGET;
a0d0e21e 3617 I32 value;
533c011a 3618 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3619 SP = MARK;
3620 PUSHi(value);
3621 RETURN;
3622}
3623
3624PP(pp_utime)
3625{
39644a26 3626 dSP; dMARK; dTARGET;
a0d0e21e 3627 I32 value;
533c011a 3628 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3629 SP = MARK;
3630 PUSHi(value);
3631 RETURN;
3632}
3633
3634PP(pp_rename)
3635{
39644a26 3636 dSP; dTARGET;
a0d0e21e 3637 int anum;
e62f0680
NC		 3638 const char *tmps2 = POPpconstx;
3639 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3640 TAINT_PROPER("rename");
3641#ifdef HAS_RENAME
baed7233 3642 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3643#else
6b88bc9c 3644 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3645 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3646 anum = 1;
3647 else {
3654eb6c 3648 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3649 (void)UNLINK(tmps2);
3650 if (!(anum = link(tmps, tmps2)))
3651 anum = UNLINK(tmps);
3652 }
a0d0e21e
LW		 3653 }
3654#endif
3655 SETi( anum >= 0 );
3656 RETURN;
3657}
3658
3659PP(pp_link)
3660{
a0d0e21e 3661#ifdef HAS_LINK
370f6000 3662 dSP; dTARGET;
e62f0680
NC		 3663 const char *tmps2 = POPpconstx;
3664 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3665 TAINT_PROPER("link");
146174a9 3666 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3667 RETURN;
a0d0e21e 3668#else
0322a713 3669 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3670#endif
a0d0e21e
LW		 3671}
3672
3673PP(pp_symlink)
3674{
a0d0e21e 3675#ifdef HAS_SYMLINK
9cad6237 3676 dSP; dTARGET;
83003860
NC		 3677 const char *tmps2 = POPpconstx;
3678 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3679 TAINT_PROPER("symlink");
3680 SETi( symlink(tmps, tmps2) >= 0 );
3681 RETURN;
3682#else
cea2e8a9 3683 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3684#endif
3685}
3686
3687PP(pp_readlink)
3688{
76ffd3b9 3689 dSP;
a0d0e21e 3690#ifdef HAS_SYMLINK
76ffd3b9 3691 dTARGET;
10516c54 3692 const char *tmps;
46fc3d4c 3693 char buf[MAXPATHLEN];
a0d0e21e 3694 int len;
46fc3d4c 3695
fb73857a 3696#ifndef INCOMPLETE_TAINTS
3697 TAINT;
3698#endif
10516c54 3699 tmps = POPpconstx;
97dcea33 3700 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3701 EXTEND(SP, 1);
3702 if (len < 0)
3703 RETPUSHUNDEF;
3704 PUSHp(buf, len);
3705 RETURN;
3706#else
3707 EXTEND(SP, 1);
3708 RETSETUNDEF; /* just pretend it's a normal file */
3709#endif
3710}
3711
3712#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3713STATIC int
b464bac0 3714S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3715{
b464bac0 3716 char * const save_filename = filename;
1e422769 3717 char *cmdline;
3718 char *s;
760ac839 3719 PerlIO *myfp;
1e422769 3720 int anum = 1;
a0d0e21e 3721
1e422769 3722 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3723 strcpy(cmdline, cmd);
3724 strcat(cmdline, " ");
3725 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3726 *s++ = '\\';
3727 *s++ = *filename++;
3728 }
3729 strcpy(s, " 2>&1");
6ad3d225 3730 myfp = PerlProc_popen(cmdline, "r");
1e422769 3731 Safefree(cmdline);
3732
a0d0e21e 3733 if (myfp) {
1e422769 3734 SV *tmpsv = sv_newmortal();
6b88bc9c 3735 /* Need to save/restore 'PL_rs' ?? */
760ac839 3736 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3737 (void)PerlProc_pclose(myfp);
a0d0e21e 3738 if (s != Nullch) {
1e422769 3739 int e;
3740 for (e = 1;
a0d0e21e 3741#ifdef HAS_SYS_ERRLIST
1e422769 3742 e <= sys_nerr
3743#endif
3744 ; e++)
3745 {
3746 /* you don't see this */
3747 char *errmsg =
3748#ifdef HAS_SYS_ERRLIST
3749 sys_errlist[e]
a0d0e21e 3750#else
1e422769 3751 strerror(e)
a0d0e21e 3752#endif
1e422769 3753 ;
3754 if (!errmsg)
3755 break;
3756 if (instr(s, errmsg)) {
3757 SETERRNO(e,0);
3758 return 0;
3759 }
a0d0e21e 3760 }
748a9306 3761 SETERRNO(0,0);
a0d0e21e
LW		 3762#ifndef EACCES
3763#define EACCES EPERM
3764#endif
1e422769 3765 if (instr(s, "cannot make"))
93189314 3766 SETERRNO(EEXIST,RMS_FEX);
1e422769 3767 else if (instr(s, "existing file"))
93189314 3768 SETERRNO(EEXIST,RMS_FEX);
1e422769 3769 else if (instr(s, "ile exists"))
93189314 3770 SETERRNO(EEXIST,RMS_FEX);
1e422769 3771 else if (instr(s, "non-exist"))
93189314 3772 SETERRNO(ENOENT,RMS_FNF);
1e422769 3773 else if (instr(s, "does not exist"))
93189314 3774 SETERRNO(ENOENT,RMS_FNF);
1e422769 3775 else if (instr(s, "not empty"))
93189314 3776 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3777 else if (instr(s, "cannot access"))
93189314 3778 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3779 else
93189314 3780 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3781 return 0;
3782 }
3783 else { /* some mkdirs return no failure indication */
6b88bc9c 3784 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3785 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3786 anum = !anum;
3787 if (anum)
748a9306 3788 SETERRNO(0,0);
a0d0e21e 3789 else
93189314 3790 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3791 }
3792 return anum;
3793 }
3794 else
3795 return 0;
3796}
3797#endif
3798
0c54f65b
RGS		 3799/* This macro removes trailing slashes from a directory name.
3800 * Different operating and file systems take differently to
3801 * trailing slashes. According to POSIX 1003.1 1996 Edition
3802 * any number of trailing slashes should be allowed.
3803 * Thusly we snip them away so that even non-conforming
3804 * systems are happy.
3805 * We should probably do this "filtering" for all
3806 * the functions that expect (potentially) directory names:
3807 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3808 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3809
5c144d81 3810#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3811 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3812 do { \
3813 (len)--; \
3814 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3815 (tmps) = savepvn((tmps), (len)); \
3816 (copy) = TRUE; \
3817 }
3818
a0d0e21e
LW		 3819PP(pp_mkdir)
3820{
39644a26 3821 dSP; dTARGET;
5a211162 3822 int mode;
a0d0e21e
LW		 3823#ifndef HAS_MKDIR
3824 int oldumask;
3825#endif
df25ddba 3826 STRLEN len;
5c144d81 3827 const char *tmps;
df25ddba 3828 bool copy = FALSE;
5a211162
GS		 3829
3830 if (MAXARG > 1)
3831 mode = POPi;
3832 else
3833 mode = 0777;
3834
0c54f65b 3835 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3836
3837 TAINT_PROPER("mkdir");
3838#ifdef HAS_MKDIR
6ad3d225 3839 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3840#else
3841 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3842 oldumask = PerlLIO_umask(0);
3843 PerlLIO_umask(oldumask);
3844 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3845#endif
df25ddba
JH		 3846 if (copy)
3847 Safefree(tmps);
a0d0e21e
LW		 3848 RETURN;
3849}
3850
3851PP(pp_rmdir)
3852{
39644a26 3853 dSP; dTARGET;
0c54f65b 3854 STRLEN len;
5c144d81 3855 const char *tmps;
0c54f65b 3856 bool copy = FALSE;
a0d0e21e 3857
0c54f65b 3858 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3859 TAINT_PROPER("rmdir");
3860#ifdef HAS_RMDIR
0c54f65b 3861 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3862#else
0c54f65b 3863 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3864#endif
0c54f65b
RGS		 3865 if (copy)
3866 Safefree(tmps);
a0d0e21e
LW		 3867 RETURN;
3868}
3869
3870/* Directory calls. */
3871
3872PP(pp_open_dir)
3873{
a0d0e21e 3874#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3875 dSP;
10516c54 3876 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3877 GV *gv = (GV*)POPs;
3878 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3879
3880 if (!io)
3881 goto nope;
3882
3883 if (IoDIRP(io))
6ad3d225
GS		 3884 PerlDir_close(IoDIRP(io));
3885 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3886 goto nope;
3887
3888 RETPUSHYES;
3889nope:
3890 if (!errno)
93189314 3891 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3892 RETPUSHUNDEF;
3893#else
cea2e8a9 3894 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3895#endif
3896}
3897
3898PP(pp_readdir)
3899{
34b7f128
AMS		 3900#if !defined(Direntry_t) || !defined(HAS_READDIR)
3901 DIE(aTHX_ PL_no_dir_func, "readdir");
3902#else
fd8cd3a3 3903#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3904 Direntry_t *readdir (DIR *);
a0d0e21e 3905#endif
34b7f128
AMS		 3906 dSP;
3907
3908 SV *sv;
f54cb97a 3909 const I32 gimme = GIMME;
34b7f128 3910 GV *gv = (GV *)POPs;
a0d0e21e 3911 register Direntry_t *dp;
a0d0e21e
LW		 3912 register IO *io = GvIOn(gv);
3913
3914 if (!io || !IoDIRP(io))
3915 goto nope;
3916
34b7f128
AMS		 3917 do {
3918 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3919 if (!dp)
3920 break;
a0d0e21e 3921#ifdef DIRNAMLEN
34b7f128 3922 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3923#else
34b7f128 3924 sv = newSVpv(dp->d_name, 0);
fb73857a 3925#endif
3926#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3927 if (!(IoFLAGS(io) & IOf_UNTAINT))
3928 SvTAINTED_on(sv);
a0d0e21e 3929#endif
34b7f128 3930 XPUSHs(sv_2mortal(sv));
a0d0e21e 3931 }
34b7f128
AMS		 3932 while (gimme == G_ARRAY);
3933
3934 if (!dp && gimme != G_ARRAY)
3935 goto nope;
3936
a0d0e21e
LW		 3937 RETURN;
3938
3939nope:
3940 if (!errno)
93189314 3941 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3942 if (GIMME == G_ARRAY)
3943 RETURN;
3944 else
3945 RETPUSHUNDEF;
a0d0e21e
LW		 3946#endif
3947}
3948
3949PP(pp_telldir)
3950{
a0d0e21e 3951#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3952 dVAR; dSP; dTARGET;
968dcd91
JH		 3953 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3954 /* XXX netbsd still seemed to.
3955 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3956 --JHI 1999-Feb-02 */
3957# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3958 long telldir (DIR *);
dfe9444c 3959# endif
a0d0e21e
LW		 3960 GV *gv = (GV*)POPs;
3961 register IO *io = GvIOn(gv);
3962
3963 if (!io || !IoDIRP(io))
3964 goto nope;
3965
6ad3d225 3966 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3967 RETURN;
3968nope:
3969 if (!errno)
93189314 3970 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3971 RETPUSHUNDEF;
3972#else
cea2e8a9 3973 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3974#endif
3975}
3976
3977PP(pp_seekdir)
3978{
a0d0e21e 3979#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3980 dSP;
a0d0e21e
LW		 3981 long along = POPl;
3982 GV *gv = (GV*)POPs;
3983 register IO *io = GvIOn(gv);
3984
3985 if (!io || !IoDIRP(io))
3986 goto nope;
3987
6ad3d225 3988 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3989
3990 RETPUSHYES;
3991nope:
3992 if (!errno)
93189314 3993 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3994 RETPUSHUNDEF;
3995#else
cea2e8a9 3996 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3997#endif
3998}
3999
4000PP(pp_rewinddir)
4001{
a0d0e21e 4002#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4003 dSP;
a0d0e21e
LW		 4004 GV *gv = (GV*)POPs;
4005 register IO *io = GvIOn(gv);
4006
4007 if (!io || !IoDIRP(io))
4008 goto nope;
4009
6ad3d225 4010 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4011 RETPUSHYES;
4012nope:
4013 if (!errno)
93189314 4014 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4015 RETPUSHUNDEF;
4016#else
cea2e8a9 4017 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4018#endif
4019}
4020
4021PP(pp_closedir)
4022{
a0d0e21e 4023#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4024 dSP;
a0d0e21e
LW		 4025 GV *gv = (GV*)POPs;
4026 register IO *io = GvIOn(gv);
4027
4028 if (!io || !IoDIRP(io))
4029 goto nope;
4030
4031#ifdef VOID_CLOSEDIR
6ad3d225 4032 PerlDir_close(IoDIRP(io));
a0d0e21e 4033#else
6ad3d225 4034 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4035 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4036 goto nope;
748a9306 4037 }
a0d0e21e
LW		 4038#endif
4039 IoDIRP(io) = 0;
4040
4041 RETPUSHYES;
4042nope:
4043 if (!errno)
93189314 4044 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4045 RETPUSHUNDEF;
4046#else
cea2e8a9 4047 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4048#endif
4049}
4050
4051/* Process control. */
4052
4053PP(pp_fork)
4054{
44a8e56a 4055#ifdef HAS_FORK
39644a26 4056 dSP; dTARGET;
761237fe 4057 Pid_t childpid;
a0d0e21e
LW		 4058 GV *tmpgv;
4059
4060 EXTEND(SP, 1);
45bc9206 4061 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4062 childpid = PerlProc_fork();
a0d0e21e
LW		 4063 if (childpid < 0)
4064 RETSETUNDEF;
4065 if (!childpid) {
4066 /*SUPPRESS 560*/
306196c3
MS		 4067 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4068 SvREADONLY_off(GvSV(tmpgv));
146174a9 4069 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4070 SvREADONLY_on(GvSV(tmpgv));
4071 }
4d76a344
RGS		 4072#ifdef THREADS_HAVE_PIDS
4073 PL_ppid = (IV)getppid();
4074#endif
3280af22 4075 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4076 }
4077 PUSHi(childpid);
4078 RETURN;
4079#else
146174a9 4080# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4081 dSP; dTARGET;
146174a9
CB		 4082 Pid_t childpid;
4083
4084 EXTEND(SP, 1);
4085 PERL_FLUSHALL_FOR_CHILD;
4086 childpid = PerlProc_fork();
60fa28ff
GS		 4087 if (childpid == -1)
4088 RETSETUNDEF;
146174a9
CB		 4089 PUSHi(childpid);
4090 RETURN;
4091# else
0322a713 4092 DIE(aTHX_ PL_no_func, "fork");
146174a9 4093# endif
a0d0e21e
LW		 4094#endif
4095}
4096
4097PP(pp_wait)
4098{
301e8125 4099#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4100 dSP; dTARGET;
761237fe 4101 Pid_t childpid;
a0d0e21e 4102 int argflags;
a0d0e21e 4103
4ffa73a3
JH		 4104 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4105 childpid = wait4pid(-1, &argflags, 0);
4106 else {
4107 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4108 errno == EINTR) {
4109 PERL_ASYNC_CHECK();
4110 }
0a0ada86 4111 }
68a29c53
GS		 4112# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4113 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4114 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4115# else
f86702cc 4116 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4117# endif
44a8e56a 4118 XPUSHi(childpid);
a0d0e21e
LW		 4119 RETURN;
4120#else
0322a713 4121 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4122#endif
4123}
4124
4125PP(pp_waitpid)
4126{
301e8125 4127#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4128 dSP; dTARGET;
2ec0bfb3
SG		 4129 Pid_t pid;
4130 Pid_t result;
a0d0e21e
LW		 4131 int optype;
4132 int argflags;
a0d0e21e 4133
a0d0e21e 4134 optype = POPi;
2ec0bfb3 4135 pid = TOPi;
4ffa73a3 4136 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4137 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4138 else {
2ec0bfb3 4139 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4140 errno == EINTR) {
4141 PERL_ASYNC_CHECK();
4142 }
0a0ada86 4143 }
68a29c53
GS		 4144# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4145 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4146 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4147# else
2ec0bfb3 4148 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4149# endif
2ec0bfb3 4150 SETi(result);
a0d0e21e
LW		 4151 RETURN;
4152#else
0322a713 4153 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4154#endif
4155}
4156
4157PP(pp_system)
4158{
39644a26 4159 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4160 I32 value;
76ffd3b9 4161 int result;
a0d0e21e 4162
bbd7eb8a
RD		 4163 if (PL_tainting) {
4164 TAINT_ENV();
4165 while (++MARK <= SP) {
10516c54 4166 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4167 if (PL_tainted)
bbd7eb8a
RD		 4168 break;
4169 }
4170 MARK = ORIGMARK;
5a445156 4171 TAINT_PROPER("system");
a0d0e21e 4172 }
45bc9206 4173 PERL_FLUSHALL_FOR_CHILD;
273b0206 4174#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4175 {
eb160463
GS		 4176 Pid_t childpid;
4177 int pp[2];
27da23d5 4178 I32 did_pipes = 0;
eb160463
GS		 4179
4180 if (PerlProc_pipe(pp) >= 0)
4181 did_pipes = 1;
4182 while ((childpid = PerlProc_fork()) == -1) {
4183 if (errno != EAGAIN) {
4184 value = -1;
4185 SP = ORIGMARK;
4186 PUSHi(value);
4187 if (did_pipes) {
4188 PerlLIO_close(pp[0]);
4189 PerlLIO_close(pp[1]);
4190 }
4191 RETURN;
4192 }
4193 sleep(5);
4194 }
4195 if (childpid > 0) {
4196 Sigsave_t ihand,qhand; /* place to save signals during system() */
4197 int status;
4198
4199 if (did_pipes)
4200 PerlLIO_close(pp[1]);
64ca3a65 4201#ifndef PERL_MICRO
eb160463
GS		 4202 rsignal_save(SIGINT, SIG_IGN, &ihand);
4203 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4204#endif
eb160463
GS		 4205 do {
4206 result = wait4pid(childpid, &status, 0);
4207 } while (result == -1 && errno == EINTR);
64ca3a65 4208#ifndef PERL_MICRO
eb160463
GS		 4209 (void)rsignal_restore(SIGINT, &ihand);
4210 (void)rsignal_restore(SIGQUIT, &qhand);
4211#endif
4212 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4213 do_execfree(); /* free any memory child malloced on fork */
4214 SP = ORIGMARK;
4215 if (did_pipes) {
4216 int errkid;
4217 int n = 0, n1;
4218
4219 while (n < sizeof(int)) {
4220 n1 = PerlLIO_read(pp[0],
4221 (void*)(((char*)&errkid)+n),
4222 (sizeof(int)) - n);
4223 if (n1 <= 0)
4224 break;
4225 n += n1;
4226 }
4227 PerlLIO_close(pp[0]);
4228 if (n) { /* Error */
4229 if (n != sizeof(int))
4230 DIE(aTHX_ "panic: kid popen errno read");
4231 errno = errkid; /* Propagate errno from kid */
4232 STATUS_CURRENT = -1;
4233 }
4234 }
4235 PUSHi(STATUS_CURRENT);
4236 RETURN;
4237 }
4238 if (did_pipes) {
4239 PerlLIO_close(pp[0]);
d5a9bfb0 4240#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4241 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4242#endif
eb160463 4243 }
e0a1f643
JH		 4244 if (PL_op->op_flags & OPf_STACKED) {
4245 SV *really = *++MARK;
4246 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4247 }
4248 else if (SP - MARK != 1)
4249 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4250 else {
8c074e2a 4251 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4252 }
4253 PerlProc__exit(-1);
d5a9bfb0 4254 }
c3293030 4255#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4256 PL_statusvalue = 0;
4257 result = 0;
911d147d 4258 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4259 SV *really = *++MARK;
27da23d5 4260# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4261 value = (I32)do_aspawn(really, MARK, SP);
4262# else
c5be433b 4263 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4264# endif
a0d0e21e 4265 }
54725af6 4266 else if (SP - MARK != 1) {
27da23d5 4267# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4268 value = (I32)do_aspawn(Nullsv, MARK, SP);
4269# else
c5be433b 4270 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4271# endif
4272 }
a0d0e21e 4273 else {
8c074e2a 4274 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4275 }
922b1888
GS		 4276 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4277 result = 1;
f86702cc 4278 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4279 do_execfree();
4280 SP = ORIGMARK;
922b1888 4281 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4282#endif /* !FORK or VMS */
4283 RETURN;
4284}
4285
4286PP(pp_exec)
4287{
39644a26 4288 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4289 I32 value;
4290
bbd7eb8a
RD		 4291 if (PL_tainting) {
4292 TAINT_ENV();
4293 while (++MARK <= SP) {
10516c54 4294 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4295 if (PL_tainted)
bbd7eb8a
RD		 4296 break;
4297 }
4298 MARK = ORIGMARK;
5a445156 4299 TAINT_PROPER("exec");
bbd7eb8a 4300 }
45bc9206 4301 PERL_FLUSHALL_FOR_CHILD;
533c011a 4302 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4303 SV *really = *++MARK;
4304 value = (I32)do_aexec(really, MARK, SP);
4305 }
4306 else if (SP - MARK != 1)
4307#ifdef VMS
4308 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4309#else
092bebab
JH		 4310# ifdef __OPEN_VM
4311 {
c5be433b 4312 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4313 value = 0;
4314 }
4315# else
a0d0e21e 4316 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4317# endif
a0d0e21e
LW		 4318#endif
4319 else {
a0d0e21e 4320#ifdef VMS
8c074e2a 4321 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4322#else
092bebab 4323# ifdef __OPEN_VM
8c074e2a 4324 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4325 value = 0;
4326# else
8c074e2a 4327 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4328# endif
a0d0e21e
LW		 4329#endif
4330 }
146174a9 4331
a0d0e21e
LW		 4332 SP = ORIGMARK;
4333 PUSHi(value);
4334 RETURN;
4335}
4336
4337PP(pp_kill)
4338{
9cad6237 4339#ifdef HAS_KILL
39644a26 4340 dSP; dMARK; dTARGET;
a0d0e21e 4341 I32 value;
533c011a 4342 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4343 SP = MARK;
4344 PUSHi(value);
4345 RETURN;
4346#else
0322a713 4347 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4348#endif
4349}
4350
4351PP(pp_getppid)
4352{
4353#ifdef HAS_GETPPID
39644a26 4354 dSP; dTARGET;
4d76a344 4355# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4356 if (PL_ppid != 1 && getppid() == 1)
4357 /* maybe the parent process has died. Refresh ppid cache */
4358 PL_ppid = 1;
4d76a344
RGS		 4359 XPUSHi( PL_ppid );
4360# else
a0d0e21e 4361 XPUSHi( getppid() );
4d76a344 4362# endif
a0d0e21e
LW		 4363 RETURN;
4364#else
cea2e8a9 4365 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4366#endif
4367}
4368
4369PP(pp_getpgrp)
4370{
4371#ifdef HAS_GETPGRP
39644a26 4372 dSP; dTARGET;
d8a83dd3 4373 Pid_t pid;
9853a804 4374 Pid_t pgrp;
a0d0e21e
LW		 4375
4376 if (MAXARG < 1)
4377 pid = 0;
4378 else
4379 pid = SvIVx(POPs);
c3293030 4380#ifdef BSD_GETPGRP
9853a804 4381 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4382#else
146174a9 4383 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4384 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4385 pgrp = getpgrp();
a0d0e21e 4386#endif
9853a804 4387 XPUSHi(pgrp);
a0d0e21e
LW		 4388 RETURN;
4389#else
cea2e8a9 4390 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4391#endif
4392}
4393
4394PP(pp_setpgrp)
4395{
4396#ifdef HAS_SETPGRP
39644a26 4397 dSP; dTARGET;
d8a83dd3
JH		 4398 Pid_t pgrp;
4399 Pid_t pid;
a0d0e21e
LW		 4400 if (MAXARG < 2) {
4401 pgrp = 0;
4402 pid = 0;
4403 }
4404 else {
4405 pgrp = POPi;
4406 pid = TOPi;
4407 }
4408
4409 TAINT_PROPER("setpgrp");
c3293030
IZ		 4410#ifdef BSD_SETPGRP
4411 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4412#else
146174a9
CB		 4413 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4414 || (pid != 0 && pid != PerlProc_getpid()))
4415 {
4416 DIE(aTHX_ "setpgrp can't take arguments");
4417 }
a0d0e21e
LW		 4418 SETi( setpgrp() >= 0 );
4419#endif /* USE_BSDPGRP */
4420 RETURN;
4421#else
cea2e8a9 4422 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4423#endif
4424}
4425
4426PP(pp_getpriority)
4427{
a0d0e21e 4428#ifdef HAS_GETPRIORITY
9cad6237 4429 dSP; dTARGET;
d05c1ba0
JH		 4430 int who = POPi;
4431 int which = TOPi;
a0d0e21e
LW		 4432 SETi( getpriority(which, who) );
4433 RETURN;
4434#else
cea2e8a9 4435 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4436#endif
4437}
4438
4439PP(pp_setpriority)
4440{
a0d0e21e 4441#ifdef HAS_SETPRIORITY
9cad6237 4442 dSP; dTARGET;
d05c1ba0
JH		 4443 int niceval = POPi;
4444 int who = POPi;
4445 int which = TOPi;
a0d0e21e
LW		 4446 TAINT_PROPER("setpriority");
4447 SETi( setpriority(which, who, niceval) >= 0 );
4448 RETURN;
4449#else
cea2e8a9 4450 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4451#endif
4452}
4453
4454/* Time calls. */
4455
4456PP(pp_time)
4457{
39644a26 4458 dSP; dTARGET;
cbdc8872 4459#ifdef BIG_TIME
4460 XPUSHn( time(Null(Time_t*)) );
4461#else
a0d0e21e 4462 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4463#endif
a0d0e21e
LW		 4464 RETURN;
4465}
4466
a0d0e21e
LW		 4467PP(pp_tms)
4468{
9cad6237 4469#ifdef HAS_TIMES
39644a26 4470 dSP;
a0d0e21e 4471 EXTEND(SP, 4);
a0d0e21e 4472#ifndef VMS
3280af22 4473 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4474#else
6b88bc9c 4475 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4476 /* struct tms, though same data */
4477 /* is returned. */
a0d0e21e
LW		 4478#endif
4479
5311654c 4480 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4481 if (GIMME == G_ARRAY) {
5311654c
JH		 4482 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4483 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4484 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4485 }
4486 RETURN;
9cad6237 4487#else
2f42fcb0
JH		 4488# ifdef PERL_MICRO
4489 dSP;
4490 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4491 EXTEND(SP, 4);
4492 if (GIMME == G_ARRAY) {
4493 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4494 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4495 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4496 }
4497 RETURN;
4498# else
9cad6237 4499 DIE(aTHX_ "times not implemented");
2f42fcb0 4500# endif
55497cff 4501#endif /* HAS_TIMES */
a0d0e21e
LW		 4502}
4503
4504PP(pp_localtime)
4505{
cea2e8a9 4506 return pp_gmtime();
a0d0e21e
LW		 4507}
4508
4509PP(pp_gmtime)
4510{
39644a26 4511 dSP;
a0d0e21e 4512 Time_t when;
bfed75c6 4513 const struct tm *tmbuf;
27da23d5
JH		 4514 static const char * const dayname[] =
4515 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4516 static const char * const monname[] =
4517 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4518 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4519
4520 if (MAXARG < 1)
4521 (void)time(&when);
4522 else
cbdc8872 4523#ifdef BIG_TIME
4524 when = (Time_t)SvNVx(POPs);
4525#else
a0d0e21e 4526 when = (Time_t)SvIVx(POPs);
cbdc8872 4527#endif
a0d0e21e 4528
533c011a 4529 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4530 tmbuf = localtime(&when);
4531 else
4532 tmbuf = gmtime(&when);
4533
a0d0e21e 4534 if (GIMME != G_ARRAY) {
46fc3d4c 4535 SV *tsv;
9a5ff6d9
AB		 4536 EXTEND(SP, 1);
4537 EXTEND_MORTAL(1);
a0d0e21e
LW		 4538 if (!tmbuf)
4539 RETPUSHUNDEF;
be28567c 4540 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4541 dayname[tmbuf->tm_wday],
4542 monname[tmbuf->tm_mon],
be28567c
GS		 4543 tmbuf->tm_mday,
4544 tmbuf->tm_hour,
4545 tmbuf->tm_min,
4546 tmbuf->tm_sec,
4547 tmbuf->tm_year + 1900);
46fc3d4c 4548 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4549 }
4550 else if (tmbuf) {
9a5ff6d9
AB		 4551 EXTEND(SP, 9);
4552 EXTEND_MORTAL(9);
4553 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4554 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4555 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4556 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4557 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4560 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4561 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4562 }
4563 RETURN;
4564}
4565
4566PP(pp_alarm)
4567{
9cad6237 4568#ifdef HAS_ALARM
39644a26 4569 dSP; dTARGET;
a0d0e21e 4570 int anum;
a0d0e21e
LW		 4571 anum = POPi;
4572 anum = alarm((unsigned int)anum);
4573 EXTEND(SP, 1);
4574 if (anum < 0)
4575 RETPUSHUNDEF;
c6419e06 4576 PUSHi(anum);
a0d0e21e
LW		 4577 RETURN;
4578#else
0322a713 4579 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4580#endif
4581}
4582
4583PP(pp_sleep)
4584{
39644a26 4585 dSP; dTARGET;
a0d0e21e
LW		 4586 I32 duration;
4587 Time_t lasttime;
4588 Time_t when;
4589
4590 (void)time(&lasttime);
4591 if (MAXARG < 1)
76e3520e 4592 PerlProc_pause();
a0d0e21e
LW		 4593 else {
4594 duration = POPi;
76e3520e 4595 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4596 }
4597 (void)time(&when);
4598 XPUSHi(when - lasttime);
4599 RETURN;
4600}
4601
4602/* Shared memory. */
4603
4604PP(pp_shmget)
4605{
cea2e8a9 4606 return pp_semget();
a0d0e21e
LW		 4607}
4608
4609PP(pp_shmctl)
4610{
cea2e8a9 4611 return pp_semctl();
a0d0e21e
LW		 4612}
4613
4614PP(pp_shmread)
4615{
cea2e8a9 4616 return pp_shmwrite();
a0d0e21e
LW		 4617}
4618
4619PP(pp_shmwrite)
4620{
4621#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4622 dSP; dMARK; dTARGET;
533c011a 4623 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4624 SP = MARK;
4625 PUSHi(value);
4626 RETURN;
4627#else
cea2e8a9 4628 return pp_semget();
a0d0e21e
LW		 4629#endif
4630}
4631
4632/* Message passing. */
4633
4634PP(pp_msgget)
4635{
cea2e8a9 4636 return pp_semget();
a0d0e21e
LW		 4637}
4638
4639PP(pp_msgctl)
4640{
cea2e8a9 4641 return pp_semctl();
a0d0e21e
LW		 4642}
4643
4644PP(pp_msgsnd)
4645{
4646#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4647 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4648 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4649 SP = MARK;
4650 PUSHi(value);
4651 RETURN;
4652#else
cea2e8a9 4653 return pp_semget();
a0d0e21e
LW		 4654#endif
4655}
4656
4657PP(pp_msgrcv)
4658{
4659#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4660 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4661 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4662 SP = MARK;
4663 PUSHi(value);
4664 RETURN;
4665#else
cea2e8a9 4666 return pp_semget();
a0d0e21e
LW		 4667#endif
4668}
4669
4670/* Semaphores. */
4671
4672PP(pp_semget)
4673{
4674#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4675 dSP; dMARK; dTARGET;
533c011a 4676 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4677 SP = MARK;
4678 if (anum == -1)
4679 RETPUSHUNDEF;
4680 PUSHi(anum);
4681 RETURN;
4682#else
cea2e8a9 4683 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4684#endif
4685}
4686
4687PP(pp_semctl)
4688{
4689#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4690 dSP; dMARK; dTARGET;
533c011a 4691 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4692 SP = MARK;
4693 if (anum == -1)
4694 RETSETUNDEF;
4695 if (anum != 0) {
4696 PUSHi(anum);
4697 }
4698 else {
8903cb82 4699 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4700 }
4701 RETURN;
4702#else
cea2e8a9 4703 return pp_semget();
a0d0e21e
LW		 4704#endif
4705}
4706
4707PP(pp_semop)
4708{
4709#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4710 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4711 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4712 SP = MARK;
4713 PUSHi(value);
4714 RETURN;
4715#else
cea2e8a9 4716 return pp_semget();
a0d0e21e
LW		 4717#endif
4718}
4719
4720/* Get system info. */
4721
4722PP(pp_ghbyname)
4723{
693762b4 4724#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4725 return pp_ghostent();
a0d0e21e 4726#else
cea2e8a9 4727 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4728#endif
4729}
4730
4731PP(pp_ghbyaddr)
4732{
693762b4 4733#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4734 return pp_ghostent();
a0d0e21e 4735#else
cea2e8a9 4736 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4737#endif
4738}
4739
4740PP(pp_ghostent)
4741{
693762b4 4742#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4743 dSP;
533c011a 4744 I32 which = PL_op->op_type;
a0d0e21e
LW		 4745 register char **elem;
4746 register SV *sv;
dc45a647 4747#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4748 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4749 struct hostent *gethostbyname(Netdb_name_t);
4750 struct hostent *gethostent(void);
a0d0e21e
LW		 4751#endif
4752 struct hostent *hent;
4753 unsigned long len;
4754
4755 EXTEND(SP, 10);
edd309b7 4756 if (which == OP_GHBYNAME) {
dc45a647 4757#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4758 char* name = POPpbytex;
4759 hent = PerlSock_gethostbyname(name);
dc45a647 4760#else
cea2e8a9 4761 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4762#endif
edd309b7 4763 }
a0d0e21e 4764 else if (which == OP_GHBYADDR) {
dc45a647 4765#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4766 int addrtype = POPi;
748a9306 4767 SV *addrsv = POPs;
a0d0e21e 4768 STRLEN addrlen;
595ae481 4769 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4770
4599a1de 4771 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4772#else
cea2e8a9 4773 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4774#endif
a0d0e21e
LW		 4775 }
4776 else
4777#ifdef HAS_GETHOSTENT
6ad3d225 4778 hent = PerlSock_gethostent();
a0d0e21e 4779#else
cea2e8a9 4780 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4781#endif
4782
4783#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4784 if (!hent) {
4785#ifdef USE_REENTRANT_API
4786# ifdef USE_GETHOSTENT_ERRNO
4787 h_errno = PL_reentrant_buffer->_gethostent_errno;
4788# endif
4789#endif
4790 STATUS_NATIVE_SET(h_errno);
4791 }
a0d0e21e
LW		 4792#endif
4793
4794 if (GIMME != G_ARRAY) {
4795 PUSHs(sv = sv_newmortal());
4796 if (hent) {
4797 if (which == OP_GHBYNAME) {
fd0af264 4798 if (hent->h_addr)
4799 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4800 }
4801 else
4802 sv_setpv(sv, (char*)hent->h_name);
4803 }
4804 RETURN;
4805 }
4806
4807 if (hent) {
3280af22 4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4809 sv_setpv(sv, (char*)hent->h_name);
3280af22 4810 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4811 for (elem = hent->h_aliases; elem && *elem; elem++) {
4812 sv_catpv(sv, *elem);
4813 if (elem[1])
4814 sv_catpvn(sv, " ", 1);
4815 }
3280af22 4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4817 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4818 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4819 len = hent->h_length;
1e422769 4820 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4821#ifdef h_addr
4822 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4823 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4824 sv_setpvn(sv, *elem, len);
4825 }
4826#else
6b88bc9c 4827 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4828 if (hent->h_addr)
4829 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4830#endif /* h_addr */
4831 }
4832 RETURN;
4833#else
cea2e8a9 4834 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4835#endif
4836}
4837
4838PP(pp_gnbyname)
4839{
693762b4 4840#ifdef HAS_GETNETBYNAME
cea2e8a9 4841 return pp_gnetent();
a0d0e21e 4842#else
cea2e8a9 4843 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4844#endif
4845}
4846
4847PP(pp_gnbyaddr)
4848{
693762b4 4849#ifdef HAS_GETNETBYADDR
cea2e8a9 4850 return pp_gnetent();
a0d0e21e 4851#else
cea2e8a9 4852 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4853#endif
4854}
4855
4856PP(pp_gnetent)
4857{
693762b4 4858#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4859 dSP;
533c011a 4860 I32 which = PL_op->op_type;
a0d0e21e
LW		 4861 register char **elem;
4862 register SV *sv;
dc45a647 4863#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4864 struct netent *getnetbyaddr(Netdb_net_t, int);
4865 struct netent *getnetbyname(Netdb_name_t);
4866 struct netent *getnetent(void);
8ac85365 4867#endif
a0d0e21e
LW		 4868 struct netent *nent;
4869
edd309b7 4870 if (which == OP_GNBYNAME){
dc45a647 4871#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4872 char *name = POPpbytex;
4873 nent = PerlSock_getnetbyname(name);
dc45a647 4874#else
cea2e8a9 4875 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4876#endif
edd309b7 4877 }
a0d0e21e 4878 else if (which == OP_GNBYADDR) {
dc45a647 4879#ifdef HAS_GETNETBYADDR
a0d0e21e 4880 int addrtype = POPi;
3bb7c1b4 4881 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4882 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4883#else
cea2e8a9 4884 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4885#endif
a0d0e21e
LW		 4886 }
4887 else
dc45a647 4888#ifdef HAS_GETNETENT
76e3520e 4889 nent = PerlSock_getnetent();
dc45a647 4890#else
cea2e8a9 4891 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4892#endif
a0d0e21e 4893
10bc17b6
JH		 4894#ifdef HOST_NOT_FOUND
4895 if (!nent) {
4896#ifdef USE_REENTRANT_API
4897# ifdef USE_GETNETENT_ERRNO
4898 h_errno = PL_reentrant_buffer->_getnetent_errno;
4899# endif
4900#endif
4901 STATUS_NATIVE_SET(h_errno);
4902 }
4903#endif
4904
a0d0e21e
LW		 4905 EXTEND(SP, 4);
4906 if (GIMME != G_ARRAY) {
4907 PUSHs(sv = sv_newmortal());
4908 if (nent) {
4909 if (which == OP_GNBYNAME)
1e422769 4910 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4911 else
4912 sv_setpv(sv, nent->n_name);
4913 }
4914 RETURN;
4915 }
4916
4917 if (nent) {
3280af22 4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4919 sv_setpv(sv, nent->n_name);
3280af22 4920 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4921 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4922 sv_catpv(sv, *elem);
4923 if (elem[1])
4924 sv_catpvn(sv, " ", 1);
4925 }
3280af22 4926 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4927 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4928 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4929 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4930 }
4931
4932 RETURN;
4933#else
cea2e8a9 4934 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4935#endif
4936}
4937
4938PP(pp_gpbyname)
4939{
693762b4 4940#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4941 return pp_gprotoent();
a0d0e21e 4942#else
cea2e8a9 4943 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4944#endif
4945}
4946
4947PP(pp_gpbynumber)
4948{
693762b4 4949#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4950 return pp_gprotoent();
a0d0e21e 4951#else
cea2e8a9 4952 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4953#endif
4954}
4955
4956PP(pp_gprotoent)
4957{
693762b4 4958#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4959 dSP;
533c011a 4960 I32 which = PL_op->op_type;
a0d0e21e 4961 register char **elem;
301e8125 4962 register SV *sv;
dc45a647 4963#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4964 struct protoent *getprotobyname(Netdb_name_t);
4965 struct protoent *getprotobynumber(int);
4966 struct protoent *getprotoent(void);
8ac85365 4967#endif
a0d0e21e
LW		 4968 struct protoent *pent;
4969
edd309b7 4970 if (which == OP_GPBYNAME) {
e5c9fcd0 4971#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4972 char* name = POPpbytex;
4973 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4974#else
cea2e8a9 4975 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4976#endif
edd309b7
JH		 4977 }
4978 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4979#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4980 int number = POPi;
4981 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4982#else
edd309b7 4983 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4984#endif
edd309b7 4985 }
a0d0e21e 4986 else
e5c9fcd0 4987#ifdef HAS_GETPROTOENT
6ad3d225 4988 pent = PerlSock_getprotoent();
e5c9fcd0 4989#else
cea2e8a9 4990 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4991#endif
a0d0e21e
LW		 4992
4993 EXTEND(SP, 3);
4994 if (GIMME != G_ARRAY) {
4995 PUSHs(sv = sv_newmortal());
4996 if (pent) {
4997 if (which == OP_GPBYNAME)
1e422769 4998 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4999 else
5000 sv_setpv(sv, pent->p_name);
5001 }
5002 RETURN;
5003 }
5004
5005 if (pent) {
3280af22 5006 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5007 sv_setpv(sv, pent->p_name);
3280af22 5008 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5009 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5010 sv_catpv(sv, *elem);
5011 if (elem[1])
5012 sv_catpvn(sv, " ", 1);
5013 }
3280af22 5014 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5015 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5016 }
5017
5018 RETURN;
5019#else
cea2e8a9 5020 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5021#endif
5022}
5023
5024PP(pp_gsbyname)
5025{
9ec75305 5026#ifdef HAS_GETSERVBYNAME
cea2e8a9 5027 return pp_gservent();
a0d0e21e 5028#else
cea2e8a9 5029 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5030#endif
5031}
5032
5033PP(pp_gsbyport)
5034{
9ec75305 5035#ifdef HAS_GETSERVBYPORT
cea2e8a9 5036 return pp_gservent();
a0d0e21e 5037#else
cea2e8a9 5038 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5039#endif
5040}
5041
5042PP(pp_gservent)
5043{
693762b4 5044#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5045 dSP;
533c011a 5046 I32 which = PL_op->op_type;
a0d0e21e
LW		 5047 register char **elem;
5048 register SV *sv;
dc45a647 5049#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5050 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5051 struct servent *getservbyport(int, Netdb_name_t);
5052 struct servent *getservent(void);
8ac85365 5053#endif
a0d0e21e
LW		 5054 struct servent *sent;
5055
5056 if (which == OP_GSBYNAME) {
dc45a647 5057#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5058 char *proto = POPpbytex;
5059 char *name = POPpbytex;
a0d0e21e
LW		 5060
5061 if (proto && !*proto)
5062 proto = Nullch;
5063
6ad3d225 5064 sent = PerlSock_getservbyname(name, proto);
dc45a647 5065#else
cea2e8a9 5066 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5067#endif
a0d0e21e
LW		 5068 }
5069 else if (which == OP_GSBYPORT) {
dc45a647 5070#ifdef HAS_GETSERVBYPORT
42e0c139 5071 char *proto = POPpbytex;
eb160463 5072 unsigned short port = (unsigned short)POPu;
a0d0e21e 5073
2b872cca
SR		 5074 if (proto && !*proto)
5075 proto = Nullch;
5076
36477c24 5077#ifdef HAS_HTONS
6ad3d225 5078 port = PerlSock_htons(port);
36477c24 5079#endif
6ad3d225 5080 sent = PerlSock_getservbyport(port, proto);
dc45a647 5081#else
cea2e8a9 5082 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5083#endif
a0d0e21e
LW		 5084 }
5085 else
e5c9fcd0 5086#ifdef HAS_GETSERVENT
6ad3d225 5087 sent = PerlSock_getservent();
e5c9fcd0 5088#else
cea2e8a9 5089 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5090#endif
a0d0e21e
LW		 5091
5092 EXTEND(SP, 4);
5093 if (GIMME != G_ARRAY) {
5094 PUSHs(sv = sv_newmortal());
5095 if (sent) {
5096 if (which == OP_GSBYNAME) {
5097#ifdef HAS_NTOHS
6ad3d225 5098 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5099#else
1e422769 5100 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5101#endif
5102 }
5103 else
5104 sv_setpv(sv, sent->s_name);
5105 }
5106 RETURN;
5107 }
5108
5109 if (sent) {
3280af22 5110 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5111 sv_setpv(sv, sent->s_name);
3280af22 5112 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5113 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5114 sv_catpv(sv, *elem);
5115 if (elem[1])
5116 sv_catpvn(sv, " ", 1);
5117 }
3280af22 5118 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5119#ifdef HAS_NTOHS
76e3520e 5120 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5121#else
1e422769 5122 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5123#endif
3280af22 5124 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5125 sv_setpv(sv, sent->s_proto);
5126 }
5127
5128 RETURN;
5129#else
cea2e8a9 5130 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5131#endif
5132}
5133
5134PP(pp_shostent)
5135{
693762b4 5136#ifdef HAS_SETHOSTENT
9cad6237 5137 dSP;
76e3520e 5138 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5139 RETSETYES;
5140#else
cea2e8a9 5141 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5142#endif
5143}
5144
5145PP(pp_snetent)
5146{
693762b4 5147#ifdef HAS_SETNETENT
9cad6237 5148 dSP;
76e3520e 5149 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5150 RETSETYES;
5151#else
cea2e8a9 5152 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5153#endif
5154}
5155
5156PP(pp_sprotoent)
5157{
693762b4 5158#ifdef HAS_SETPROTOENT
9cad6237 5159 dSP;
76e3520e 5160 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5161 RETSETYES;
5162#else
cea2e8a9 5163 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5164#endif
5165}
5166
5167PP(pp_sservent)
5168{
693762b4 5169#ifdef HAS_SETSERVENT
9cad6237 5170 dSP;
76e3520e 5171 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5172 RETSETYES;
5173#else
cea2e8a9 5174 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5175#endif
5176}
5177
5178PP(pp_ehostent)
5179{
693762b4 5180#ifdef HAS_ENDHOSTENT
9cad6237 5181 dSP;
76e3520e 5182 PerlSock_endhostent();
924508f0 5183 EXTEND(SP,1);
a0d0e21e
LW		 5184 RETPUSHYES;
5185#else
cea2e8a9 5186 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5187#endif
5188}
5189
5190PP(pp_enetent)
5191{
693762b4 5192#ifdef HAS_ENDNETENT
9cad6237 5193 dSP;
76e3520e 5194 PerlSock_endnetent();
924508f0 5195 EXTEND(SP,1);
a0d0e21e
LW		 5196 RETPUSHYES;
5197#else
cea2e8a9 5198 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5199#endif
5200}
5201
5202PP(pp_eprotoent)
5203{
693762b4 5204#ifdef HAS_ENDPROTOENT
9cad6237 5205 dSP;
76e3520e 5206 PerlSock_endprotoent();
924508f0 5207 EXTEND(SP,1);
a0d0e21e
LW		 5208 RETPUSHYES;
5209#else
cea2e8a9 5210 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5211#endif
5212}
5213
5214PP(pp_eservent)
5215{
693762b4 5216#ifdef HAS_ENDSERVENT
9cad6237 5217 dSP;
76e3520e 5218 PerlSock_endservent();
924508f0 5219 EXTEND(SP,1);
a0d0e21e
LW		 5220 RETPUSHYES;
5221#else
cea2e8a9 5222 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5223#endif
5224}
5225
5226PP(pp_gpwnam)
5227{
5228#ifdef HAS_PASSWD
cea2e8a9 5229 return pp_gpwent();
a0d0e21e 5230#else
cea2e8a9 5231 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5232#endif
5233}
5234
5235PP(pp_gpwuid)
5236{
5237#ifdef HAS_PASSWD
cea2e8a9 5238 return pp_gpwent();
a0d0e21e 5239#else
cea2e8a9 5240 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5241#endif
5242}
5243
5244PP(pp_gpwent)
5245{
0994c4d0 5246#ifdef HAS_PASSWD
9cad6237 5247 dSP;
533c011a 5248 I32 which = PL_op->op_type;
a0d0e21e 5249 register SV *sv;
e3aefe8d 5250 struct passwd *pwent = NULL;
301e8125 5251 /*
bcf53261
JH		 5252 * We currently support only the SysV getsp* shadow password interface.
5253 * The interface is declared in <shadow.h> and often one needs to link
5254 * with -lsecurity or some such.
5255 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5256 * (and SCO?)
5257 *
5258 * AIX getpwnam() is clever enough to return the encrypted password
5259 * only if the caller (euid?) is root.
5260 *
e549f1c5 5261 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5262 * seem to contain more than one interface for accessing the shadow
5263 * password databases, possibly for compatibility reasons.
3813c136 5264 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5265 * are much more complicated, but also very similar to each other.
5266 *
5267 * <sys/types.h>
5268 * <sys/security.h>
5269 * <prot.h>
5270 * struct pr_passwd *getprpw*();
5271 * The password is in
3813c136
JH		 5272 * char getprpw*(...).ufld.fd_encrypt[]
5273 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5274 *
5275 * <sys/types.h>
5276 * <sys/security.h>
5277 * <prot.h>
5278 * struct es_passwd *getespw*();
5279 * The password is in
5280 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5281 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5282 *
e1920a95 5283 * <userpw.h> (AIX)
e549f1c5
JH		 5284 * struct userpw *getuserpw();
5285 * The password is in
5286 * char *(getuserpw(...)).spw_upw_passwd
5287 * (but the de facto standard getpwnam() should work okay)
5288 *
3813c136 5289 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5290 *
5291 * In HP-UX for getprpw*() the manual page claims that one should include
5292 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5293 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5294 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5295 *
5296 * Note that <sys/security.h> is already probed for, but currently
5297 * it is only included in special cases.
301e8125 5298 *
bcf53261
JH		 5299 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5300 * be preferred interface, even though also the getprpw*() interface
5301 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5302 * One also needs to call set_auth_parameters() in main() before
5303 * doing anything else, whether one is using getespw*() or getprpw*().
5304 *
5305 * Note that accessing the shadow databases can be magnitudes
5306 * slower than accessing the standard databases.
bcf53261
JH		 5307 *
5308 * --jhi
5309 */
a0d0e21e 5310
9e5f0c48
JH		 5311# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5312 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5313 * the pw_comment is left uninitialized. */
5314 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5315# endif
5316
e3aefe8d
JH		 5317 switch (which) {
5318 case OP_GPWNAM:
edd309b7
JH		 5319 {
5320 char* name = POPpbytex;
5321 pwent = getpwnam(name);
5322 }
5323 break;
e3aefe8d 5324 case OP_GPWUID:
edd309b7
JH		 5325 {
5326 Uid_t uid = POPi;
5327 pwent = getpwuid(uid);
5328 }
e3aefe8d
JH		 5329 break;
5330 case OP_GPWENT:
1883634f 5331# ifdef HAS_GETPWENT
e3aefe8d 5332 pwent = getpwent();
faea9016
IRC		 5333#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5334 if (pwent) pwent = getpwnam(pwent->pw_name);
5335#endif
1883634f 5336# else
a45d1c96 5337 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5338# endif
e3aefe8d
JH		 5339 break;
5340 }
8c0bfa08 5341
a0d0e21e
LW		 5342 EXTEND(SP, 10);
5343 if (GIMME != G_ARRAY) {
5344 PUSHs(sv = sv_newmortal());
5345 if (pwent) {
5346 if (which == OP_GPWNAM)
1883634f 5347# if Uid_t_sign <= 0
1e422769 5348 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5349# else
23dcd6c8 5350 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5351# endif
a0d0e21e
LW		 5352 else
5353 sv_setpv(sv, pwent->pw_name);
5354 }
5355 RETURN;
5356 }
5357
5358 if (pwent) {
3280af22 5359 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5360 sv_setpv(sv, pwent->pw_name);
6ee623d5 5361
3280af22 5362 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5363 SvPOK_off(sv);
5364 /* If we have getspnam(), we try to dig up the shadow
5365 * password. If we are underprivileged, the shadow
5366 * interface will set the errno to EACCES or similar,
5367 * and return a null pointer. If this happens, we will
5368 * use the dummy password (usually "*" or "x") from the
5369 * standard password database.
5370 *
5371 * In theory we could skip the shadow call completely
5372 * if euid != 0 but in practice we cannot know which
5373 * security measures are guarding the shadow databases
5374 * on a random platform.
5375 *
5376 * Resist the urge to use additional shadow interfaces.
5377 * Divert the urge to writing an extension instead.
5378 *
5379 * --jhi */
e549f1c5
JH		 5380 /* Some AIX setups falsely(?) detect some getspnam(), which
5381 * has a different API than the Solaris/IRIX one. */
5382# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5383 {
5384 struct spwd *spwent;
5385 int saverrno; /* Save and restore errno so that
5386 * underprivileged attempts seem
5387 * to have never made the unsccessful
5388 * attempt to retrieve the shadow password. */
5389
5390 saverrno = errno;
5391 spwent = getspnam(pwent->pw_name);
5392 errno = saverrno;
5393 if (spwent && spwent->sp_pwdp)
5394 sv_setpv(sv, spwent->sp_pwdp);
5395 }
f1066039 5396# endif
e020c87d 5397# ifdef PWPASSWD
3813c136
JH		 5398 if (!SvPOK(sv)) /* Use the standard password, then. */
5399 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5400# endif
3813c136 5401
1883634f 5402# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5403 /* passwd is tainted because user himself can diddle with it.
5404 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5405 SvTAINTED_on(sv);
1883634f 5406# endif
6ee623d5 5407
3280af22 5408 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5409# if Uid_t_sign <= 0
1e422769 5410 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5411# else
23dcd6c8 5412 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5413# endif
6ee623d5 5414
3280af22 5415 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5416# if Uid_t_sign <= 0
1e422769 5417 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5418# else
23dcd6c8 5419 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5420# endif
3813c136
JH		 5421 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5422 * because of the poor interface of the Perl getpw*(),
5423 * not because there's some standard/convention saying so.
5424 * A better interface would have been to return a hash,
5425 * but we are accursed by our history, alas. --jhi. */
3280af22 5426 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5427# ifdef PWCHANGE
1e422769 5428 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5429# else
1883634f
JH		 5430# ifdef PWQUOTA
5431 sv_setiv(sv, (IV)pwent->pw_quota);
5432# else
a1757be1 5433# ifdef PWAGE
a0d0e21e 5434 sv_setpv(sv, pwent->pw_age);
a1757be1 5435# endif
6ee623d5
GS		 5436# endif
5437# endif
6ee623d5 5438
3813c136
JH		 5439 /* pw_class and pw_comment are mutually exclusive--.
5440 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5441 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5442# ifdef PWCLASS
a0d0e21e 5443 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5444# else
5445# ifdef PWCOMMENT
a0d0e21e 5446 sv_setpv(sv, pwent->pw_comment);
1883634f 5447# endif
6ee623d5 5448# endif
6ee623d5 5449
3280af22 5450 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5451# ifdef PWGECOS
a0d0e21e 5452 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5453# endif
5454# ifndef INCOMPLETE_TAINTS
d2719217 5455 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5456 SvTAINTED_on(sv);
1883634f 5457# endif
6ee623d5 5458
3280af22 5459 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5460 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5461
3280af22 5462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5463 sv_setpv(sv, pwent->pw_shell);
1883634f 5464# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5465 /* pw_shell is tainted because user himself can diddle with it. */
5466 SvTAINTED_on(sv);
1883634f 5467# endif
6ee623d5 5468
1883634f 5469# ifdef PWEXPIRE
6b88bc9c 5470 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5471 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5472# endif
a0d0e21e
LW		 5473 }
5474 RETURN;
5475#else
cea2e8a9 5476 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5477#endif
5478}
5479
5480PP(pp_spwent)
5481{
d493b042 5482#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5483 dSP;
a0d0e21e
LW		 5484 setpwent();
5485 RETPUSHYES;
5486#else
cea2e8a9 5487 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5488#endif
5489}
5490
5491PP(pp_epwent)
5492{
28e8609d 5493#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5494 dSP;
a0d0e21e
LW		 5495 endpwent();
5496 RETPUSHYES;
5497#else
cea2e8a9 5498 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5499#endif
5500}
5501
5502PP(pp_ggrnam)
5503{
5504#ifdef HAS_GROUP
cea2e8a9 5505 return pp_ggrent();
a0d0e21e 5506#else
cea2e8a9 5507 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5508#endif
5509}
5510
5511PP(pp_ggrgid)
5512{
5513#ifdef HAS_GROUP
cea2e8a9 5514 return pp_ggrent();
a0d0e21e 5515#else
cea2e8a9 5516 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5517#endif
5518}
5519
5520PP(pp_ggrent)
5521{
0994c4d0 5522#ifdef HAS_GROUP
9cad6237 5523 dSP;
533c011a 5524 I32 which = PL_op->op_type;
a0d0e21e
LW		 5525 register char **elem;
5526 register SV *sv;
5527 struct group *grent;
5528
edd309b7
JH		 5529 if (which == OP_GGRNAM) {
5530 char* name = POPpbytex;
5531 grent = (struct group *)getgrnam(name);
5532 }
5533 else if (which == OP_GGRGID) {
5534 Gid_t gid = POPi;
5535 grent = (struct group *)getgrgid(gid);
5536 }
a0d0e21e 5537 else
0994c4d0 5538#ifdef HAS_GETGRENT
a0d0e21e 5539 grent = (struct group *)getgrent();
0994c4d0
JH		 5540#else
5541 DIE(aTHX_ PL_no_func, "getgrent");
5542#endif
a0d0e21e
LW		 5543
5544 EXTEND(SP, 4);
5545 if (GIMME != G_ARRAY) {
5546 PUSHs(sv = sv_newmortal());
5547 if (grent) {
5548 if (which == OP_GGRNAM)
1e422769 5549 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5550 else
5551 sv_setpv(sv, grent->gr_name);
5552 }
5553 RETURN;
5554 }
5555
5556 if (grent) {
3280af22 5557 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5558 sv_setpv(sv, grent->gr_name);
28e8609d 5559
3280af22 5560 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5561#ifdef GRPASSWD
a0d0e21e 5562 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5563#endif
5564
3280af22 5565 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5566 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5567
5b56e7c5 5568#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5569 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5570 /* In UNICOS/mk (_CRAYMPP) the multithreading
5571 * versions (getgrnam_r, getgrgid_r)
5572 * seem to return an illegal pointer
5573 * as the group members list, gr_mem.
5574 * getgrent() doesn't even have a _r version
5575 * but the gr_mem is poisonous anyway.
5576 * So yes, you cannot get the list of group
5577 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5578 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5579 sv_catpv(sv, *elem);
5580 if (elem[1])
5581 sv_catpvn(sv, " ", 1);
5582 }
3d7e8424 5583#endif
a0d0e21e
LW		 5584 }
5585
5586 RETURN;
5587#else
cea2e8a9 5588 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5589#endif
5590}
5591
5592PP(pp_sgrent)
5593{
28e8609d 5594#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5595 dSP;
a0d0e21e
LW		 5596 setgrent();
5597 RETPUSHYES;
5598#else
cea2e8a9 5599 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5600#endif
5601}
5602
5603PP(pp_egrent)
5604{
28e8609d 5605#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5606 dSP;
a0d0e21e
LW		 5607 endgrent();
5608 RETPUSHYES;
5609#else
cea2e8a9 5610 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5611#endif
5612}
5613
5614PP(pp_getlogin)
5615{
a0d0e21e 5616#ifdef HAS_GETLOGIN
9cad6237 5617 dSP; dTARGET;
a0d0e21e
LW		 5618 char *tmps;
5619 EXTEND(SP, 1);
76e3520e 5620 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5621 RETPUSHUNDEF;
5622 PUSHp(tmps, strlen(tmps));
5623 RETURN;
5624#else
cea2e8a9 5625 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5626#endif
5627}
5628
5629/* Miscellaneous. */
5630
5631PP(pp_syscall)
5632{
d2719217 5633#ifdef HAS_SYSCALL
39644a26 5634 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5635 register I32 items = SP - MARK;
5636 unsigned long a[20];
5637 register I32 i = 0;
5638 I32 retval = -1;
2d8e6c8d 5639 STRLEN n_a;
a0d0e21e 5640
3280af22 5641 if (PL_tainting) {
a0d0e21e 5642 while (++MARK <= SP) {
bbce6d69 5643 if (SvTAINTED(*MARK)) {
5644 TAINT;
5645 break;
5646 }
a0d0e21e
LW		 5647 }
5648 MARK = ORIGMARK;
5649 TAINT_PROPER("syscall");
5650 }
5651
5652 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5653 * or where sizeof(long) != sizeof(char*). But such machines will
5654 * not likely have syscall implemented either, so who cares?
5655 */
5656 while (++MARK <= SP) {
5657 if (SvNIOK(*MARK) || !i)
5658 a[i++] = SvIV(*MARK);
3280af22 5659 else if (*MARK == &PL_sv_undef)
748a9306 5660 a[i++] = 0;
301e8125 5661 else
2d8e6c8d 5662 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5663 if (i > 15)
5664 break;
5665 }
5666 switch (items) {
5667 default:
cea2e8a9 5668 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5669 case 0:
cea2e8a9 5670 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5671 case 1:
5672 retval = syscall(a[0]);
5673 break;
5674 case 2:
5675 retval = syscall(a[0],a[1]);
5676 break;
5677 case 3:
5678 retval = syscall(a[0],a[1],a[2]);
5679 break;
5680 case 4:
5681 retval = syscall(a[0],a[1],a[2],a[3]);
5682 break;
5683 case 5:
5684 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5685 break;
5686 case 6:
5687 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5688 break;
5689 case 7:
5690 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5691 break;
5692 case 8:
5693 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5694 break;
5695#ifdef atarist
5696 case 9:
5697 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5698 break;
5699 case 10:
5700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5701 break;
5702 case 11:
5703 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5704 a[10]);
5705 break;
5706 case 12:
5707 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5708 a[10],a[11]);
5709 break;
5710 case 13:
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5712 a[10],a[11],a[12]);
5713 break;
5714 case 14:
5715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5716 a[10],a[11],a[12],a[13]);
5717 break;
5718#endif /* atarist */
5719 }
5720 SP = ORIGMARK;
5721 PUSHi(retval);
5722 RETURN;
5723#else
cea2e8a9 5724 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5725#endif
5726}
5727
ff68c719 5728#ifdef FCNTL_EMULATE_FLOCK
301e8125 5729
ff68c719 5730/* XXX Emulate flock() with fcntl().
5731 What's really needed is a good file locking module.
5732*/
5733
cea2e8a9
GS		 5734static int
5735fcntl_emulate_flock(int fd, int operation)
ff68c719 5736{
5737 struct flock flock;
301e8125 5738
ff68c719 5739 switch (operation & ~LOCK_NB) {
5740 case LOCK_SH:
5741 flock.l_type = F_RDLCK;
5742 break;
5743 case LOCK_EX:
5744 flock.l_type = F_WRLCK;
5745 break;
5746 case LOCK_UN:
5747 flock.l_type = F_UNLCK;
5748 break;
5749 default:
5750 errno = EINVAL;
5751 return -1;
5752 }
5753 flock.l_whence = SEEK_SET;
d9b3e12d 5754 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5755
ff68c719 5756 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5757}
5758
5759#endif /* FCNTL_EMULATE_FLOCK */
5760
5761#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5762
5763/* XXX Emulate flock() with lockf(). This is just to increase
5764 portability of scripts. The calls are not completely
5765 interchangeable. What's really needed is a good file
5766 locking module.
5767*/
5768
76c32331 5769/* The lockf() constants might have been defined in <unistd.h>.
5770 Unfortunately, <unistd.h> causes troubles on some mixed
5771 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5772
5773 Further, the lockf() constants aren't POSIX, so they might not be
5774 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5775 just stick in the SVID values and be done with it. Sigh.
5776*/
5777
5778# ifndef F_ULOCK
5779# define F_ULOCK 0 /* Unlock a previously locked region */
5780# endif
5781# ifndef F_LOCK
5782# define F_LOCK 1 /* Lock a region for exclusive use */
5783# endif
5784# ifndef F_TLOCK
5785# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5786# endif
5787# ifndef F_TEST
5788# define F_TEST 3 /* Test a region for other processes locks */
5789# endif
5790
cea2e8a9
GS		 5791static int
5792lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5793{
5794 int i;
84902520
TB		 5795 int save_errno;
5796 Off_t pos;
5797
5798 /* flock locks entire file so for lockf we need to do the same */
5799 save_errno = errno;
6ad3d225 5800 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5801 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5802 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5803 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5804 errno = save_errno;
5805
16d20bd9
AD		 5806 switch (operation) {
5807
5808 /* LOCK_SH - get a shared lock */
5809 case LOCK_SH:
5810 /* LOCK_EX - get an exclusive lock */
5811 case LOCK_EX:
5812 i = lockf (fd, F_LOCK, 0);
5813 break;
5814
5815 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5816 case LOCK_SH|LOCK_NB:
5817 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5818 case LOCK_EX|LOCK_NB:
5819 i = lockf (fd, F_TLOCK, 0);
5820 if (i == -1)
5821 if ((errno == EAGAIN) || (errno == EACCES))
5822 errno = EWOULDBLOCK;
5823 break;
5824
ff68c719 5825 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5826 case LOCK_UN:
ff68c719 5827 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5828 i = lockf (fd, F_ULOCK, 0);
5829 break;
5830
5831 /* Default - can't decipher operation */
5832 default:
5833 i = -1;
5834 errno = EINVAL;
5835 break;
5836 }
84902520
TB		 5837
5838 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5839 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5840
16d20bd9
AD		 5841 return (i);
5842}
ff68c719 5843
5844#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5845
5846/*
5847 * Local variables:
5848 * c-indentation-style: bsd
5849 * c-basic-offset: 4
5850 * indent-tabs-mode: t
5851 * End:
5852 *
37442d52
RGS		 5853 * ex: set ts=8 sts=4 sw=4 noet:
5854 */
Unnamed repository; edit this file 'description' to name the repository.