This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
https://perl5.git.perl.org / perl5.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Don't pass constants to select
[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];
1012#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1013 I32 masksize;
1014 I32 offset;
1015 I32 k;
1016
1017# if BYTEORDER & 0xf0000
1018# define ORDERBYTE (0x88888888 - BYTEORDER)
1019# else
1020# define ORDERBYTE (0x4444 - BYTEORDER)
1021# endif
1022
1023#endif
1024
1025 SP -= 4;
1026 for (i = 1; i <= 3; i++) {
1027 if (!SvPOK(SP[i]))
1028 continue;
1029 j = SvCUR(SP[i]);
1030 if (maxlen < j)
1031 maxlen = j;
1032 }
1033
5ff3f7a4 1034/* little endians can use vecs directly */
e366b469 1035#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1036# ifdef NFDBITS
a0d0e21e 1037
5ff3f7a4
GS		 1038# ifndef NBBY
1039# define NBBY 8
1040# endif
a0d0e21e
LW		 1041
1042 masksize = NFDBITS / NBBY;
5ff3f7a4 1043# else
a0d0e21e 1044 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1045# endif
a0d0e21e
LW		 1046 Zero(&fd_sets[0], 4, char*);
1047#endif
1048
ad517f75
MHM		 1049# if SELECT_MIN_BITS == 1
1050 growsize = sizeof(fd_set);
1051# else
1052# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1053# undef SELECT_MIN_BITS
1054# define SELECT_MIN_BITS __FD_SETSIZE
1055# endif
e366b469
PG		 1056 /* If SELECT_MIN_BITS is greater than one we most probably will want
1057 * to align the sizes with SELECT_MIN_BITS/8 because for example
1058 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1059 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1060 * on (sets/tests/clears bits) is 32 bits. */
1061 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1062# endif
1063
a0d0e21e
LW		 1064 sv = SP[4];
1065 if (SvOK(sv)) {
1066 value = SvNV(sv);
1067 if (value < 0.0)
1068 value = 0.0;
1069 timebuf.tv_sec = (long)value;
65202027 1070 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1071 timebuf.tv_usec = (long)(value * 1000000.0);
1072 }
1073 else
1074 tbuf = Null(struct timeval*);
1075
1076 for (i = 1; i <= 3; i++) {
1077 sv = SP[i];
1078 if (!SvOK(sv)) {
1079 fd_sets[i] = 0;
1080 continue;
1081 }
1082 else if (!SvPOK(sv))
8b6b16e7 1083 SvPV_force_nolen(sv); /* force string conversion */
a0d0e21e
LW		 1084 j = SvLEN(sv);
1085 if (j < growsize) {
1086 Sv_Grow(sv, growsize);
a0d0e21e 1087 }
c07a80fd 1088 j = SvCUR(sv);
1089 s = SvPVX(sv) + j;
1090 while (++j <= growsize) {
1091 *s++ = '\0';
1092 }
1093
a0d0e21e
LW		 1094#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 s = SvPVX(sv);
1096 New(403, fd_sets[i], growsize, char);
1097 for (offset = 0; offset < growsize; offset += masksize) {
1098 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1099 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1100 }
1101#else
1102 fd_sets[i] = SvPVX(sv);
1103#endif
1104 }
1105
dc4c69d9
JH		 1106#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1107 /* Can't make just the (void*) conditional because that would be
1108 * cpp #if within cpp macro, and not all compilers like that. */
1109 nfound = PerlSock_select(
1110 maxlen * 8,
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 (void*) tbuf); /* Workaround for compiler bug. */
1115#else
6ad3d225 1116 nfound = PerlSock_select(
a0d0e21e
LW		 1117 maxlen * 8,
1118 (Select_fd_set_t) fd_sets[1],
1119 (Select_fd_set_t) fd_sets[2],
1120 (Select_fd_set_t) fd_sets[3],
1121 tbuf);
dc4c69d9 1122#endif
a0d0e21e
LW		 1123 for (i = 1; i <= 3; i++) {
1124 if (fd_sets[i]) {
1125 sv = SP[i];
1126#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1127 s = SvPVX(sv);
1128 for (offset = 0; offset < growsize; offset += masksize) {
1129 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1130 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1131 }
1132 Safefree(fd_sets[i]);
1133#endif
1134 SvSETMAGIC(sv);
1135 }
1136 }
1137
5c477709
RGS		 1138 if (nfound == -1)
1139 PUSHs(&PL_sv_undef);
1140 else
1141 PUSHi(nfound);
a0d0e21e 1142 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1143 value = (NV)(timebuf.tv_sec) +
1144 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1145 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1146 sv_setnv(sv, value);
1147 }
1148 RETURN;
1149#else
cea2e8a9 1150 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1151#endif
1152}
1153
4633a7c4 1154void
864dbfa3 1155Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1156{
1157 if (gv)
1158 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1159 if (PL_defoutgv)
1160 SvREFCNT_dec(PL_defoutgv);
1161 PL_defoutgv = gv;
4633a7c4
LW		 1162}
1163
a0d0e21e
LW		 1164PP(pp_select)
1165{
39644a26 1166 dSP; dTARGET;
1df70142 1167 GV *egv;
4633a7c4
LW		 1168 HV *hv;
1169
1df70142 1170 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1171
3280af22 1172 egv = GvEGV(PL_defoutgv);
4633a7c4 1173 if (!egv)
3280af22 1174 egv = PL_defoutgv;
4633a7c4
LW		 1175 hv = GvSTASH(egv);
1176 if (! hv)
3280af22 1177 XPUSHs(&PL_sv_undef);
4633a7c4 1178 else {
cbdc8872 1179 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1180 if (gvp && *gvp == egv) {
f7aaccc2 1181 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1182 XPUSHTARG;
1183 }
1184 else {
1185 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1186 }
4633a7c4
LW		 1187 }
1188
1189 if (newdefout) {
ded8aa31
GS		 1190 if (!GvIO(newdefout))
1191 gv_IOadd(newdefout);
4633a7c4
LW		 1192 setdefout(newdefout);
1193 }
1194
a0d0e21e
LW		 1195 RETURN;
1196}
1197
1198PP(pp_getc)
1199{
27da23d5 1200 dVAR; dSP; dTARGET;
a0d0e21e 1201 GV *gv;
90133b69 1202 IO *io = NULL;
2ae324a7 1203 MAGIC *mg;
a0d0e21e 1204
32da55ab 1205 if (MAXARG == 0)
3280af22 1206 gv = PL_stdingv;
a0d0e21e
LW		 1207 else
1208 gv = (GV*)POPs;
2ae324a7 1209
5b468f54
AMS		 1210 if (gv && (io = GvIO(gv))
1211 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1212 {
f54cb97a 1213 const I32 gimme = GIMME_V;
2ae324a7 1214 PUSHMARK(SP);
5b468f54 1215 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1216 PUTBACK;
1217 ENTER;
864dbfa3 1218 call_method("GETC", gimme);
2ae324a7 1219 LEAVE;
1220 SPAGAIN;
54310121 1221 if (gimme == G_SCALAR)
1222 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1223 RETURN;
1224 }
90133b69 1225 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1226 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1227 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1228 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1229 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1230 RETPUSHUNDEF;
90133b69 1231 }
bbce6d69 1232 TAINT;
c69006e4 1233 sv_setpvn(TARG, " ", 1);
9bc64814 1234 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1235 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1236 /* Find out how many bytes the char needs */
aa07b2f6 1237 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1238 if (len > 1) {
1239 SvGROW(TARG,len+1);
1240 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1241 SvCUR_set(TARG,1+len);
1242 }
1243 SvUTF8_on(TARG);
1244 }
a0d0e21e
LW		 1245 PUSHTARG;
1246 RETURN;
1247}
1248
1249PP(pp_read)
1250{
cea2e8a9 1251 return pp_sysread();
a0d0e21e
LW		 1252}
1253
76e3520e 1254STATIC OP *
cea2e8a9 1255S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1256{
27da23d5 1257 dVAR;
c09156bb 1258 register PERL_CONTEXT *cx;
f54cb97a 1259 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1260
1261 ENTER;
1262 SAVETMPS;
1263
146174a9 1264 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1265 PUSHFORMAT(cx);
f39bc417 1266 cx->blk_sub.retop = retop;
dd2155a4 1267 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1268
4633a7c4 1269 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1270 return CvSTART(cv);
1271}
1272
1273PP(pp_enterwrite)
1274{
39644a26 1275 dSP;
a0d0e21e
LW		 1276 register GV *gv;
1277 register IO *io;
1278 GV *fgv;
1279 CV *cv;
1280
1281 if (MAXARG == 0)
3280af22 1282 gv = PL_defoutgv;
a0d0e21e
LW		 1283 else {
1284 gv = (GV*)POPs;
1285 if (!gv)
3280af22 1286 gv = PL_defoutgv;
a0d0e21e
LW		 1287 }
1288 EXTEND(SP, 1);
1289 io = GvIO(gv);
1290 if (!io) {
1291 RETPUSHNO;
1292 }
1293 if (IoFMT_GV(io))
1294 fgv = IoFMT_GV(io);
1295 else
1296 fgv = gv;
1297
1298 cv = GvFORM(fgv);
a0d0e21e
LW		 1299 if (!cv) {
1300 if (fgv) {
1df70142 1301 SV * const tmpsv = sv_newmortal();
e62f0680 1302 const char *name;
43693395 1303 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1304 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1305 if (name && *name)
1306 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1307 }
cea2e8a9 1308 DIE(aTHX_ "Not a format reference");
a0d0e21e 1309 }
44a8e56a 1310 if (CvCLONE(cv))
1311 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1312
44a8e56a 1313 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1314 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1315}
1316
1317PP(pp_leavewrite)
1318{
27da23d5 1319 dVAR; dSP;
a0d0e21e
LW		 1320 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1321 register IO *io = GvIOp(gv);
760ac839
LW		 1322 PerlIO *ofp = IoOFP(io);
1323 PerlIO *fp;
a0d0e21e
LW		 1324 SV **newsp;
1325 I32 gimme;
c09156bb 1326 register PERL_CONTEXT *cx;
a0d0e21e 1327
760ac839 1328 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1329 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1330 if (!io || !ofp)
1331 goto forget_top;
3280af22
NIS		 1332 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1333 PL_formtarget != PL_toptarget)
a0d0e21e 1334 {
4633a7c4
LW		 1335 GV *fgv;
1336 CV *cv;
a0d0e21e
LW		 1337 if (!IoTOP_GV(io)) {
1338 GV *topgv;
46fc3d4c 1339 SV *topname;
a0d0e21e
LW		 1340
1341 if (!IoTOP_NAME(io)) {
1342 if (!IoFMT_NAME(io))
1343 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1344 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1345 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1346 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1347 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1348 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1349 else
ff5bdd37 1350 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1351 }
1352 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1353 if (!topgv || !GvFORM(topgv)) {
b929a54b 1354 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1355 goto forget_top;
1356 }
1357 IoTOP_GV(io) = topgv;
1358 }
748a9306
LW		 1359 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1360 I32 lines = IoLINES_LEFT(io);
504618e9 1361 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1362 if (lines <= 0) /* Yow, header didn't even fit!!! */
1363 goto forget_top;
748a9306
LW		 1364 while (lines-- > 0) {
1365 s = strchr(s, '\n');
1366 if (!s)
1367 break;
1368 s++;
1369 }
1370 if (s) {
f54cb97a 1371 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1372 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1373 do_print(PL_formtarget, ofp);
1374 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1375 sv_chop(PL_formtarget, s);
1376 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1377 }
1378 }
a0d0e21e 1379 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1380 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1381 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1382 IoPAGE(io)++;
3280af22 1383 PL_formtarget = PL_toptarget;
748a9306 1384 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1385 fgv = IoTOP_GV(io);
1386 if (!fgv)
cea2e8a9 1387 DIE(aTHX_ "bad top format reference");
4633a7c4 1388 cv = GvFORM(fgv);
1df70142
AL		 1389 if (!cv) {
1390 SV * const sv = sv_newmortal();
b464bac0 1391 const char *name;
1df70142 1392 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1393 name = SvPV_nolen_const(sv);
2dd78f96 1394 if (name && *name)
1df70142 1395 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1396 }
1df70142
AL		 1397 /* why no:
1398 else
1399 DIE(aTHX_ "Undefined top format called");
1400 ?*/
44a8e56a 1401 if (CvCLONE(cv))
1402 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1403 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1404 }
1405
1406 forget_top:
3280af22 1407 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1408 POPFORMAT(cx);
1409 LEAVE;
1410
1411 fp = IoOFP(io);
1412 if (!fp) {
599cee73 1413 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1414 if (IoIFP(io))
1415 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1416 else if (ckWARN(WARN_CLOSED))
bc37a18f 1417 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1418 }
3280af22 1419 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1420 }
1421 else {
3280af22 1422 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1423 if (ckWARN(WARN_IO))
9014280d 1424 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1425 }
d75029d0 1426 if (!do_print(PL_formtarget, fp))
3280af22 1427 PUSHs(&PL_sv_no);
a0d0e21e 1428 else {
3280af22
NIS		 1429 FmLINES(PL_formtarget) = 0;
1430 SvCUR_set(PL_formtarget, 0);
1431 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1432 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1433 (void)PerlIO_flush(fp);
3280af22 1434 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1435 }
1436 }
9cbac4c7 1437 /* bad_ofp: */
3280af22 1438 PL_formtarget = PL_bodytarget;
a0d0e21e 1439 PUTBACK;
f39bc417 1440 return cx->blk_sub.retop;
a0d0e21e
LW		 1441}
1442
1443PP(pp_prtf)
1444{
27da23d5 1445 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1446 GV *gv;
1447 IO *io;
760ac839 1448 PerlIO *fp;
26db47c4 1449 SV *sv;
46fc3d4c 1450 MAGIC *mg;
a0d0e21e 1451
533c011a 1452 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1453 gv = (GV*)*++MARK;
1454 else
3280af22 1455 gv = PL_defoutgv;
46fc3d4c 1456
5b468f54
AMS		 1457 if (gv && (io = GvIO(gv))
1458 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1459 {
46fc3d4c 1460 if (MARK == ORIGMARK) {
4352c267 1461 MEXTEND(SP, 1);
46fc3d4c 1462 ++MARK;
1463 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1464 ++SP;
1465 }
1466 PUSHMARK(MARK - 1);
5b468f54 1467 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1468 PUTBACK;
1469 ENTER;
864dbfa3 1470 call_method("PRINTF", G_SCALAR);
46fc3d4c 1471 LEAVE;
1472 SPAGAIN;
1473 MARK = ORIGMARK + 1;
1474 *MARK = *SP;
1475 SP = MARK;
1476 RETURN;
1477 }
1478
26db47c4 1479 sv = NEWSV(0,0);
a0d0e21e 1480 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1481 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1482 report_evil_fh(gv, io, PL_op->op_type);
93189314 1483 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1484 goto just_say_no;
1485 }
1486 else if (!(fp = IoOFP(io))) {
599cee73 1487 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1488 if (IoIFP(io))
1489 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1490 else if (ckWARN(WARN_CLOSED))
bc37a18f 1491 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1492 }
93189314 1493 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1494 goto just_say_no;
1495 }
1496 else {
1497 do_sprintf(sv, SP - MARK, MARK + 1);
1498 if (!do_print(sv, fp))
1499 goto just_say_no;
1500
1501 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1502 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1503 goto just_say_no;
1504 }
1505 SvREFCNT_dec(sv);
1506 SP = ORIGMARK;
3280af22 1507 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1508 RETURN;
1509
1510 just_say_no:
1511 SvREFCNT_dec(sv);
1512 SP = ORIGMARK;
3280af22 1513 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1514 RETURN;
1515}
1516
c07a80fd 1517PP(pp_sysopen)
1518{
39644a26 1519 dSP;
c07a80fd 1520 GV *gv;
c07a80fd 1521 SV *sv;
e62f0680 1522 const char *tmps;
c07a80fd 1523 STRLEN len;
1df70142
AL		 1524 const int perm = (MAXARG > 3) ? POPi : 0666;
1525 const int mode = POPi;
c07a80fd 1526
c07a80fd 1527 sv = POPs;
1528 gv = (GV *)POPs;
1529
4592e6ca
NIS		 1530 /* Need TIEHANDLE method ? */
1531
e62f0680
NC		 1532 tmps = SvPV_const(sv, len);
1533 /* FIXME? do_open should do const */
1534 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1535 IoLINES(GvIOp(gv)) = 0;
3280af22 1536 PUSHs(&PL_sv_yes);
c07a80fd 1537 }
1538 else {
3280af22 1539 PUSHs(&PL_sv_undef);
c07a80fd 1540 }
1541 RETURN;
1542}
1543
a0d0e21e
LW		 1544PP(pp_sysread)
1545{
27da23d5 1546 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1547 int offset;
1548 GV *gv;
1549 IO *io;
1550 char *buffer;
5b54f415 1551 SSize_t length;
eb5c063a 1552 SSize_t count;
1e422769 1553 Sock_size_t bufsize;
748a9306 1554 SV *bufsv;
a0d0e21e 1555 STRLEN blen;
2ae324a7 1556 MAGIC *mg;
eb5c063a 1557 int fp_utf8;
1dd30107
NC		 1558 int buffer_utf8;
1559 SV *read_target;
eb5c063a
NIS		 1560 Size_t got = 0;
1561 Size_t wanted;
1d636c13 1562 bool charstart = FALSE;
87330c3c
JH		 1563 STRLEN charskip = 0;
1564 STRLEN skip = 0;
a0d0e21e
LW		 1565
1566 gv = (GV*)*++MARK;
5b468f54
AMS		 1567 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1568 && gv && (io = GvIO(gv))
1569 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1570 {
2ae324a7 1571 SV *sv;
1572
1573 PUSHMARK(MARK-1);
5b468f54 1574 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1575 ENTER;
864dbfa3 1576 call_method("READ", G_SCALAR);
2ae324a7 1577 LEAVE;
1578 SPAGAIN;
1579 sv = POPs;
1580 SP = ORIGMARK;
1581 PUSHs(sv);
1582 RETURN;
1583 }
1584
a0d0e21e
LW		 1585 if (!gv)
1586 goto say_undef;
748a9306 1587 bufsv = *++MARK;
ff68c719 1588 if (! SvOK(bufsv))
1589 sv_setpvn(bufsv, "", 0);
a0d0e21e 1590 length = SvIVx(*++MARK);
748a9306 1591 SETERRNO(0,0);
a0d0e21e
LW		 1592 if (MARK < SP)
1593 offset = SvIVx(*++MARK);
1594 else
1595 offset = 0;
1596 io = GvIO(gv);
b5fe5ca2
SR		 1597 if (!io || !IoIFP(io)) {
1598 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1599 report_evil_fh(gv, io, PL_op->op_type);
1600 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1601 goto say_undef;
b5fe5ca2 1602 }
0064a8a9 1603 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1604 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1605 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1606 SvUTF8_on(bufsv);
9b9d7ce8 1607 buffer_utf8 = 0;
7d59b7e4
NIS		 1608 }
1609 else {
1610 buffer = SvPV_force(bufsv, blen);
1dd30107 1611 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1612 }
1613 if (length < 0)
1614 DIE(aTHX_ "Negative length");
eb5c063a 1615 wanted = length;
7d59b7e4 1616
d0965105
JH		 1617 charstart = TRUE;
1618 charskip = 0;
87330c3c 1619 skip = 0;
d0965105 1620
a0d0e21e 1621#ifdef HAS_SOCKET
533c011a 1622 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1623 char namebuf[MAXPATHLEN];
17a8c7ba 1624#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1625 bufsize = sizeof (struct sockaddr_in);
1626#else
46fc3d4c 1627 bufsize = sizeof namebuf;
490ab354 1628#endif
abf95952
IZ		 1629#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1630 if (bufsize >= 256)
1631 bufsize = 255;
1632#endif
eb160463 1633 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1634 /* 'offset' means 'flags' here */
eb5c063a 1635 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1636 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1637 if (count < 0)
a0d0e21e 1638 RETPUSHUNDEF;
4107cc59
OF		 1639#ifdef EPOC
1640 /* Bogus return without padding */
1641 bufsize = sizeof (struct sockaddr_in);
1642#endif
eb5c063a 1643 SvCUR_set(bufsv, count);
748a9306
LW		 1644 *SvEND(bufsv) = '\0';
1645 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1646 if (fp_utf8)
1647 SvUTF8_on(bufsv);
748a9306 1648 SvSETMAGIC(bufsv);
aac0dd9a 1649 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1650 if (!(IoFLAGS(io) & IOf_UNTAINT))
1651 SvTAINTED_on(bufsv);
a0d0e21e 1652 SP = ORIGMARK;
46fc3d4c 1653 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1654 PUSHs(TARG);
1655 RETURN;
1656 }
1657#else
911d147d 1658 if (PL_op->op_type == OP_RECV)
cea2e8a9 1659 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1660#endif
eb5c063a
NIS		 1661 if (DO_UTF8(bufsv)) {
1662 /* offset adjust in characters not bytes */
1663 blen = sv_len_utf8(bufsv);
7d59b7e4 1664 }
bbce6d69 1665 if (offset < 0) {
eb160463 1666 if (-offset > (int)blen)
cea2e8a9 1667 DIE(aTHX_ "Offset outside string");
bbce6d69 1668 offset += blen;
1669 }
eb5c063a
NIS		 1670 if (DO_UTF8(bufsv)) {
1671 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1672 if (offset >= (int)blen)
1673 offset += SvCUR(bufsv) - blen;
1674 else
1675 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1676 }
1677 more_bytes:
cd52b7b2 1678 bufsize = SvCUR(bufsv);
1dd30107
NC		 1679 /* Allocating length + offset + 1 isn't perfect in the case of reading
1680 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1681 unduly.
1682 (should be 2 * length + offset + 1, or possibly something longer if
1683 PL_encoding is true) */
eb160463 1684 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1685 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1686 Zero(buffer+bufsize, offset-bufsize, char);
1687 }
eb5c063a 1688 buffer = buffer + offset;
1dd30107
NC		 1689 if (!buffer_utf8) {
1690 read_target = bufsv;
1691 } else {
1692 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1693 concatenate it to the current buffer. */
1694
1695 /* Truncate the existing buffer to the start of where we will be
1696 reading to: */
1697 SvCUR_set(bufsv, offset);
1698
1699 read_target = sv_newmortal();
862a34c6 1700 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1701 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1702 }
eb5c063a 1703
533c011a 1704 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1705#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1706 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1707 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1708 buffer, length, 0);
a7092146
GS		 1709 }
1710 else
1711#endif
1712 {
eb5c063a
NIS		 1713 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1714 buffer, length);
a7092146 1715 }
a0d0e21e
LW		 1716 }
1717 else
1718#ifdef HAS_SOCKET__bad_code_maybe
50952442 1719 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1720 char namebuf[MAXPATHLEN];
490ab354
JH		 1721#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1722 bufsize = sizeof (struct sockaddr_in);
1723#else
46fc3d4c 1724 bufsize = sizeof namebuf;
490ab354 1725#endif
eb5c063a 1726 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1727 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1728 }
1729 else
1730#endif
3b02c43c 1731 {
eb5c063a
NIS		 1732 count = PerlIO_read(IoIFP(io), buffer, length);
1733 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1734 if (count == 0 && PerlIO_error(IoIFP(io)))
1735 count = -1;
3b02c43c 1736 }
eb5c063a 1737 if (count < 0) {
a00b5bd3 1738 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1739 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1740 goto say_undef;
af8c498a 1741 }
aa07b2f6 1742 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1743 *SvEND(read_target) = '\0';
1744 (void)SvPOK_only(read_target);
0064a8a9 1745 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1746 /* Look at utf8 we got back and count the characters */
1df70142 1747 const char *bend = buffer + count;
eb5c063a 1748 while (buffer < bend) {
d0965105
JH		 1749 if (charstart) {
1750 skip = UTF8SKIP(buffer);
1751 charskip = 0;
1752 }
1753 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1754 /* partial character - try for rest of it */
1755 length = skip - (bend-buffer);
aa07b2f6 1756 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1757 charstart = FALSE;
1758 charskip += count;
eb5c063a
NIS		 1759 goto more_bytes;
1760 }
1761 else {
1762 got++;
1763 buffer += skip;
d0965105
JH		 1764 charstart = TRUE;
1765 charskip = 0;
eb5c063a
NIS		 1766 }
1767 }
1768 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1769 provided amount read (count) was what was requested (length)
1770 */
1771 if (got < wanted && count == length) {
d0965105 1772 length = wanted - got;
aa07b2f6 1773 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1774 goto more_bytes;
1775 }
1776 /* return value is character count */
1777 count = got;
1778 SvUTF8_on(bufsv);
1779 }
1dd30107
NC		 1780 else if (buffer_utf8) {
1781 /* Let svcatsv upgrade the bytes we read in to utf8.
1782 The buffer is a mortal so will be freed soon. */
1783 sv_catsv_nomg(bufsv, read_target);
1784 }
748a9306 1785 SvSETMAGIC(bufsv);
aac0dd9a 1786 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1787 if (!(IoFLAGS(io) & IOf_UNTAINT))
1788 SvTAINTED_on(bufsv);
a0d0e21e 1789 SP = ORIGMARK;
eb5c063a 1790 PUSHi(count);
a0d0e21e
LW		 1791 RETURN;
1792
1793 say_undef:
1794 SP = ORIGMARK;
1795 RETPUSHUNDEF;
1796}
1797
1798PP(pp_syswrite)
1799{
27da23d5 1800 dVAR; dSP;
1df70142 1801 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1802 if (items == 2) {
9f089d78 1803 SV *sv;
092bebab 1804 EXTEND(SP, 1);
9f089d78
SB		 1805 sv = sv_2mortal(newSViv(sv_len(*SP)));
1806 PUSHs(sv);
092bebab
JH		 1807 PUTBACK;
1808 }
cea2e8a9 1809 return pp_send();
a0d0e21e
LW		 1810}
1811
1812PP(pp_send)
1813{
27da23d5 1814 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1815 GV *gv;
1816 IO *io;
748a9306 1817 SV *bufsv;
83003860 1818 const char *buffer;
8c99d73e
GS		 1819 Size_t length;
1820 SSize_t retval;
a0d0e21e 1821 STRLEN blen;
1d603a67 1822 MAGIC *mg;
a0d0e21e
LW		 1823
1824 gv = (GV*)*++MARK;
14befaf4 1825 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1826 && gv && (io = GvIO(gv))
1827 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1828 {
1d603a67
GB		 1829 SV *sv;
1830
1831 PUSHMARK(MARK-1);
5b468f54 1832 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1833 ENTER;
864dbfa3 1834 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1835 LEAVE;
1836 SPAGAIN;
1837 sv = POPs;
1838 SP = ORIGMARK;
1839 PUSHs(sv);
1840 RETURN;
1841 }
a0d0e21e
LW		 1842 if (!gv)
1843 goto say_undef;
748a9306 1844 bufsv = *++MARK;
8c99d73e 1845#if Size_t_size > IVSIZE
3c001241 1846 length = (Size_t)SvNVx(*++MARK);
146174a9 1847#else
3c001241 1848 length = (Size_t)SvIVx(*++MARK);
146174a9 1849#endif
3c001241 1850 if ((SSize_t)length < 0)
cea2e8a9 1851 DIE(aTHX_ "Negative length");
748a9306 1852 SETERRNO(0,0);
a0d0e21e
LW		 1853 io = GvIO(gv);
1854 if (!io || !IoIFP(io)) {
8c99d73e 1855 retval = -1;
bc37a18f
RG		 1856 if (ckWARN(WARN_CLOSED))
1857 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1858 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1859 goto say_undef;
1860 }
1861
1862 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1863 if (!SvUTF8(bufsv)) {
1864 bufsv = sv_2mortal(newSVsv(bufsv));
1865 buffer = sv_2pvutf8(bufsv, &blen);
1866 } else
83003860 1867 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1868 }
7d59b7e4 1869 else {
4de5f5ca
JH		 1870 if (DO_UTF8(bufsv)) {
1871 /* Not modifying source SV, so making a temporary copy. */
1872 bufsv = sv_2mortal(newSVsv(bufsv));
1873 sv_utf8_downgrade(bufsv, FALSE);
1874 }
83003860 1875 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1876 }
1877
1878 if (PL_op->op_type == OP_SYSWRITE) {
1879 IV offset;
1880 if (DO_UTF8(bufsv)) {
1881 /* length and offset are in chars */
1882 blen = sv_len_utf8(bufsv);
1883 }
bbce6d69 1884 if (MARK < SP) {
a0d0e21e 1885 offset = SvIVx(*++MARK);
bbce6d69 1886 if (offset < 0) {
eb160463 1887 if (-offset > (IV)blen)
cea2e8a9 1888 DIE(aTHX_ "Offset outside string");
bbce6d69 1889 offset += blen;
eb160463 1890 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1891 DIE(aTHX_ "Offset outside string");
bbce6d69 1892 } else
a0d0e21e
LW		 1893 offset = 0;
1894 if (length > blen - offset)
1895 length = blen - offset;
7d59b7e4 1896 if (DO_UTF8(bufsv)) {
83003860 1897 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1898 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1899 }
1900 else {
1901 buffer = buffer+offset;
1902 }
a7092146 1903#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1904 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1905 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1906 buffer, length, 0);
a7092146
GS		 1907 }
1908 else
1909#endif
1910 {
94e4c244 1911 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1912 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1913 buffer, length);
a7092146 1914 }
a0d0e21e
LW		 1915 }
1916#ifdef HAS_SOCKET
1917 else if (SP > MARK) {
a0d0e21e 1918 STRLEN mlen;
1df70142 1919 char * const sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1920 /* length is really flags */
8c99d73e
GS		 1921 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1922 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1923 }
1924 else
7d59b7e4 1925 /* length is really flags */
8c99d73e 1926 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1927#else
1928 else
cea2e8a9 1929 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1930#endif
8c99d73e 1931 if (retval < 0)
a0d0e21e
LW		 1932 goto say_undef;
1933 SP = ORIGMARK;
f36eea10
JH		 1934 if (DO_UTF8(bufsv))
1935 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1936#if Size_t_size > IVSIZE
1937 PUSHn(retval);
1938#else
1939 PUSHi(retval);
1940#endif
a0d0e21e
LW		 1941 RETURN;
1942
1943 say_undef:
1944 SP = ORIGMARK;
1945 RETPUSHUNDEF;
1946}
1947
1948PP(pp_recv)
1949{
cea2e8a9 1950 return pp_sysread();
a0d0e21e
LW		 1951}
1952
1953PP(pp_eof)
1954{
27da23d5 1955 dVAR; dSP;
a0d0e21e 1956 GV *gv;
5b468f54 1957 IO *io;
4592e6ca 1958 MAGIC *mg;
a0d0e21e 1959
32da55ab 1960 if (MAXARG == 0) {
146174a9
CB		 1961 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1962 IO *io;
ed2c6b9b 1963 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1964 io = GvIO(gv);
1965 if (io && !IoIFP(io)) {
1966 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1967 IoLINES(io) = 0;
1968 IoFLAGS(io) &= ~IOf_START;
dd374669 1969 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1970 sv_setpvn(GvSV(gv), "-", 1);
1971 SvSETMAGIC(GvSV(gv));
1972 }
1973 else if (!nextargv(gv))
1974 RETPUSHYES;
1975 }
1976 }
1977 else
1978 gv = PL_last_in_gv; /* eof */
1979 }
a0d0e21e 1980 else
146174a9 1981 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1982
5b468f54
AMS		 1983 if (gv && (io = GvIO(gv))
1984 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1985 {
4592e6ca 1986 PUSHMARK(SP);
5b468f54 1987 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1988 PUTBACK;
1989 ENTER;
864dbfa3 1990 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1991 LEAVE;
1992 SPAGAIN;
1993 RETURN;
1994 }
1995
54310121 1996 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1997 RETURN;
1998}
1999
2000PP(pp_tell)
2001{
27da23d5 2002 dVAR; dSP; dTARGET;
301e8125 2003 GV *gv;
5b468f54 2004 IO *io;
4592e6ca 2005 MAGIC *mg;
a0d0e21e 2006
32da55ab 2007 if (MAXARG == 0)
3280af22 2008 gv = PL_last_in_gv;
a0d0e21e 2009 else
3280af22 2010 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2011
5b468f54
AMS		 2012 if (gv && (io = GvIO(gv))
2013 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2014 {
4592e6ca 2015 PUSHMARK(SP);
5b468f54 2016 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2017 PUTBACK;
2018 ENTER;
864dbfa3 2019 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2020 LEAVE;
2021 SPAGAIN;
2022 RETURN;
2023 }
2024
146174a9
CB		 2025#if LSEEKSIZE > IVSIZE
2026 PUSHn( do_tell(gv) );
2027#else
a0d0e21e 2028 PUSHi( do_tell(gv) );
146174a9 2029#endif
a0d0e21e
LW		 2030 RETURN;
2031}
2032
2033PP(pp_seek)
2034{
cea2e8a9 2035 return pp_sysseek();
137443ea 2036}
2037
2038PP(pp_sysseek)
2039{
27da23d5 2040 dVAR; dSP;
a0d0e21e 2041 GV *gv;
5b468f54 2042 IO *io;
1df70142 2043 const int whence = POPi;
146174a9
CB		 2044#if LSEEKSIZE > IVSIZE
2045 Off_t offset = (Off_t)SvNVx(POPs);
2046#else
d9b3e12d 2047 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2048#endif
4592e6ca 2049 MAGIC *mg;
a0d0e21e 2050
3280af22 2051 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2052
5b468f54
AMS		 2053 if (gv && (io = GvIO(gv))
2054 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2055 {
4592e6ca 2056 PUSHMARK(SP);
5b468f54 2057 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2058#if LSEEKSIZE > IVSIZE
2059 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2060#else
b448e4fe 2061 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2062#endif
b448e4fe 2063 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2064 PUTBACK;
2065 ENTER;
864dbfa3 2066 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2067 LEAVE;
2068 SPAGAIN;
2069 RETURN;
2070 }
2071
533c011a 2072 if (PL_op->op_type == OP_SEEK)
8903cb82 2073 PUSHs(boolSV(do_seek(gv, offset, whence)));
2074 else {
b448e4fe
JH		 2075 Off_t sought = do_sysseek(gv, offset, whence);
2076 if (sought < 0)
146174a9
CB		 2077 PUSHs(&PL_sv_undef);
2078 else {
b448e4fe 2079 SV* sv = sought ?
146174a9 2080#if LSEEKSIZE > IVSIZE
b448e4fe 2081 newSVnv((NV)sought)
146174a9 2082#else
b448e4fe 2083 newSViv(sought)
146174a9
CB		 2084#endif
2085 : newSVpvn(zero_but_true, ZBTLEN);
2086 PUSHs(sv_2mortal(sv));
2087 }
8903cb82 2088 }
a0d0e21e
LW		 2089 RETURN;
2090}
2091
2092PP(pp_truncate)
2093{
39644a26 2094 dSP;
8c99d73e
GS		 2095 /* There seems to be no consensus on the length type of truncate()
2096 * and ftruncate(), both off_t and size_t have supporters. In
2097 * general one would think that when using large files, off_t is
2098 * at least as wide as size_t, so using an off_t should be okay. */
2099 /* XXX Configure probe for the length type of *truncate() needed XXX */
2100 Off_t len;
a0d0e21e 2101
25342a55 2102#if Off_t_size > IVSIZE
8c99d73e
GS		 2103 len = (Off_t)POPn;
2104#else
2105 len = (Off_t)POPi;
2106#endif
2107 /* Checking for length < 0 is problematic as the type might or
301e8125 2108 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2109 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2110 SETERRNO(0,0);
d05c1ba0 2111 {
d05c1ba0
JH		 2112 int result = 1;
2113 GV *tmpgv;
090bf15b
SR		 2114 IO *io;
2115
d05c1ba0 2116 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2117 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2118
090bf15b
SR		 2119 do_ftruncate_gv:
2120 if (!GvIO(tmpgv))
2121 result = 0;
d05c1ba0 2122 else {
090bf15b
SR		 2123 PerlIO *fp;
2124 io = GvIOp(tmpgv);
2125 do_ftruncate_io:
2126 TAINT_PROPER("truncate");
2127 if (!(fp = IoIFP(io))) {
2128 result = 0;
2129 }
2130 else {
2131 PerlIO_flush(fp);
cbdc8872 2132#ifdef HAS_TRUNCATE
090bf15b 2133 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2134#else
090bf15b 2135 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2136#endif
090bf15b
SR		 2137 result = 0;
2138 }
d05c1ba0 2139 }
cbdc8872 2140 }
d05c1ba0
JH		 2141 else {
2142 SV *sv = POPs;
83003860 2143 const char *name;
7a5fd60d 2144
d05c1ba0
JH		 2145 if (SvTYPE(sv) == SVt_PVGV) {
2146 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2147 goto do_ftruncate_gv;
d05c1ba0
JH		 2148 }
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2150 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2151 goto do_ftruncate_gv;
2152 }
2153 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2154 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2155 goto do_ftruncate_io;
d05c1ba0 2156 }
1e422769 2157
83003860 2158 name = SvPV_nolen_const(sv);
d05c1ba0 2159 TAINT_PROPER("truncate");
cbdc8872 2160#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2161 if (truncate(name, len) < 0)
2162 result = 0;
cbdc8872 2163#else
d05c1ba0
JH		 2164 {
2165 int tmpfd;
2166
2167 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2168 result = 0;
d05c1ba0
JH		 2169 else {
2170 if (my_chsize(tmpfd, len) < 0)
2171 result = 0;
2172 PerlLIO_close(tmpfd);
2173 }
cbdc8872 2174 }
a0d0e21e 2175#endif
d05c1ba0 2176 }
a0d0e21e 2177
d05c1ba0
JH		 2178 if (result)
2179 RETPUSHYES;
2180 if (!errno)
93189314 2181 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2182 RETPUSHUNDEF;
2183 }
a0d0e21e
LW		 2184}
2185
2186PP(pp_fcntl)
2187{
cea2e8a9 2188 return pp_ioctl();
a0d0e21e
LW		 2189}
2190
2191PP(pp_ioctl)
2192{
39644a26 2193 dSP; dTARGET;
748a9306 2194 SV *argsv = POPs;
1df70142 2195 const unsigned int func = POPu;
e1ec3a88 2196 const int optype = PL_op->op_type;
a0d0e21e 2197 char *s;
324aa91a 2198 IV retval;
a0d0e21e 2199 GV *gv = (GV*)POPs;
c289d2f7 2200 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2201
748a9306 2202 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2203 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2204 report_evil_fh(gv, io, PL_op->op_type);
93189314 2205 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2206 RETPUSHUNDEF;
2207 }
2208
748a9306 2209 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2210 STRLEN len;
324aa91a 2211 STRLEN need;
748a9306 2212 s = SvPV_force(argsv, len);
324aa91a
HF		 2213 need = IOCPARM_LEN(func);
2214 if (len < need) {
2215 s = Sv_Grow(argsv, need + 1);
2216 SvCUR_set(argsv, need);
a0d0e21e
LW		 2217 }
2218
748a9306 2219 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2220 }
2221 else {
748a9306 2222 retval = SvIV(argsv);
c529f79d 2223 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2224 }
2225
2226 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2227
2228 if (optype == OP_IOCTL)
2229#ifdef HAS_IOCTL
76e3520e 2230 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2231#else
cea2e8a9 2232 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2233#endif
2234 else
c214f4ad
WB		 2235#ifndef HAS_FCNTL
2236 DIE(aTHX_ "fcntl is not implemented");
2237#else
55497cff 2238#if defined(OS2) && defined(__EMX__)
760ac839 2239 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2240#else
760ac839 2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2242#endif
6652bd42 2243#endif
a0d0e21e 2244
6652bd42 2245#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2246 if (SvPOK(argsv)) {
2247 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2248 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2249 OP_NAME(PL_op));
748a9306
LW		 2250 s[SvCUR(argsv)] = 0; /* put our null back */
2251 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2252 }
2253
2254 if (retval == -1)
2255 RETPUSHUNDEF;
2256 if (retval != 0) {
2257 PUSHi(retval);
2258 }
2259 else {
8903cb82 2260 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2261 }
4808266b 2262#endif
c214f4ad 2263 RETURN;
a0d0e21e
LW		 2264}
2265
2266PP(pp_flock)
2267{
9cad6237 2268#ifdef FLOCK
39644a26 2269 dSP; dTARGET;
a0d0e21e
LW		 2270 I32 value;
2271 int argtype;
2272 GV *gv;
bc37a18f 2273 IO *io = NULL;
760ac839 2274 PerlIO *fp;
16d20bd9 2275
a0d0e21e 2276 argtype = POPi;
32da55ab 2277 if (MAXARG == 0)
3280af22 2278 gv = PL_last_in_gv;
a0d0e21e
LW		 2279 else
2280 gv = (GV*)POPs;
bc37a18f
RG		 2281 if (gv && (io = GvIO(gv)))
2282 fp = IoIFP(io);
2283 else {
a0d0e21e 2284 fp = Nullfp;
bc37a18f
RG		 2285 io = NULL;
2286 }
a0d0e21e 2287 if (fp) {
68dc0745 2288 (void)PerlIO_flush(fp);
76e3520e 2289 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2290 }
cb50131a 2291 else {
bc37a18f
RG		 2292 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2293 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2294 value = 0;
93189314 2295 SETERRNO(EBADF,RMS_IFI);
cb50131a 2296 }
a0d0e21e
LW		 2297 PUSHi(value);
2298 RETURN;
2299#else
cea2e8a9 2300 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2301#endif
2302}
2303
2304/* Sockets. */
2305
2306PP(pp_socket)
2307{
a0d0e21e 2308#ifdef HAS_SOCKET
9cad6237 2309 dSP;
a0d0e21e
LW		 2310 GV *gv;
2311 register IO *io;
2312 int protocol = POPi;
2313 int type = POPi;
2314 int domain = POPi;
2315 int fd;
2316
2317 gv = (GV*)POPs;
c289d2f7 2318 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2319
c289d2f7
JH		 2320 if (!gv || !io) {
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2322 report_evil_fh(gv, io, PL_op->op_type);
2323 if (IoIFP(io))
2324 do_close(gv, FALSE);
93189314 2325 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2326 RETPUSHUNDEF;
2327 }
2328
57171420
BS		 2329 if (IoIFP(io))
2330 do_close(gv, FALSE);
2331
a0d0e21e 2332 TAINT_PROPER("socket");
6ad3d225 2333 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2334 if (fd < 0)
2335 RETPUSHUNDEF;
460c8493
IZ		 2336 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2337 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2338 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2339 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2340 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2341 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2342 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2343 RETPUSHUNDEF;
2344 }
8d2a6795
GS		 2345#if defined(HAS_FCNTL) && defined(F_SETFD)
2346 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2347#endif
a0d0e21e 2348
d5ff79b3
OF		 2349#ifdef EPOC
2350 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2351#endif
2352
a0d0e21e
LW		 2353 RETPUSHYES;
2354#else
cea2e8a9 2355 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2356#endif
2357}
2358
2359PP(pp_sockpair)
2360{
c95c94b1 2361#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2362 dSP;
a0d0e21e
LW		 2363 GV *gv1;
2364 GV *gv2;
2365 register IO *io1;
2366 register IO *io2;
2367 int protocol = POPi;
2368 int type = POPi;
2369 int domain = POPi;
2370 int fd[2];
2371
2372 gv2 = (GV*)POPs;
2373 gv1 = (GV*)POPs;
c289d2f7
JH		 2374 io1 = gv1 ? GvIOn(gv1) : NULL;
2375 io2 = gv2 ? GvIOn(gv2) : NULL;
2376 if (!gv1 || !gv2 || !io1 || !io2) {
2377 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2378 if (!gv1 || !io1)
2379 report_evil_fh(gv1, io1, PL_op->op_type);
2380 if (!gv2 || !io2)
2381 report_evil_fh(gv1, io2, PL_op->op_type);
2382 }
2383 if (IoIFP(io1))
2384 do_close(gv1, FALSE);
2385 if (IoIFP(io2))
2386 do_close(gv2, FALSE);
a0d0e21e 2387 RETPUSHUNDEF;
c289d2f7 2388 }
a0d0e21e 2389
dc0d0a5f
JH		 2390 if (IoIFP(io1))
2391 do_close(gv1, FALSE);
2392 if (IoIFP(io2))
2393 do_close(gv2, FALSE);
57171420 2394
a0d0e21e 2395 TAINT_PROPER("socketpair");
6ad3d225 2396 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2397 RETPUSHUNDEF;
460c8493
IZ		 2398 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2399 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2400 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2401 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2403 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2404 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2405 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2406 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2407 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2408 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2409 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2410 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2411 RETPUSHUNDEF;
2412 }
8d2a6795
GS		 2413#if defined(HAS_FCNTL) && defined(F_SETFD)
2414 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2415 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2416#endif
a0d0e21e
LW		 2417
2418 RETPUSHYES;
2419#else
cea2e8a9 2420 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2421#endif
2422}
2423
2424PP(pp_bind)
2425{
a0d0e21e 2426#ifdef HAS_SOCKET
9cad6237 2427 dSP;
eec2d3df 2428#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2429 extern void GETPRIVMODE();
2430 extern void GETUSERMODE();
eec2d3df 2431#endif
748a9306 2432 SV *addrsv = POPs;
a0d0e21e
LW		 2433 char *addr;
2434 GV *gv = (GV*)POPs;
2435 register IO *io = GvIOn(gv);
2436 STRLEN len;
eec2d3df
GS		 2437 int bind_ok = 0;
2438#ifdef MPE
2439 int mpeprivmode = 0;
2440#endif
a0d0e21e
LW		 2441
2442 if (!io || !IoIFP(io))
2443 goto nuts;
2444
748a9306 2445 addr = SvPV(addrsv, len);
a0d0e21e 2446 TAINT_PROPER("bind");
eec2d3df
GS		 2447#ifdef MPE /* Deal with MPE bind() peculiarities */
2448 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2449 /* The address *MUST* stupidly be zero. */
2450 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2451 /* PRIV mode is required to bind() to ports < 1024. */
2452 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2453 ((struct sockaddr_in *)addr)->sin_port > 0) {
2454 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2455 mpeprivmode = 1;
2456 }
2457 }
2458#endif /* MPE */
2459 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2460 (struct sockaddr *)addr, len) >= 0)
2461 bind_ok = 1;
2462
2463#ifdef MPE /* Switch back to USER mode */
2464 if (mpeprivmode)
2465 GETUSERMODE();
2466#endif /* MPE */
2467
2468 if (bind_ok)
a0d0e21e
LW		 2469 RETPUSHYES;
2470 else
2471 RETPUSHUNDEF;
2472
2473nuts:
599cee73 2474 if (ckWARN(WARN_CLOSED))
bc37a18f 2475 report_evil_fh(gv, io, PL_op->op_type);
93189314 2476 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2477 RETPUSHUNDEF;
2478#else
cea2e8a9 2479 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2480#endif
2481}
2482
2483PP(pp_connect)
2484{
a0d0e21e 2485#ifdef HAS_SOCKET
9cad6237 2486 dSP;
748a9306 2487 SV *addrsv = POPs;
a0d0e21e
LW		 2488 char *addr;
2489 GV *gv = (GV*)POPs;
2490 register IO *io = GvIOn(gv);
2491 STRLEN len;
2492
2493 if (!io || !IoIFP(io))
2494 goto nuts;
2495
748a9306 2496 addr = SvPV(addrsv, len);
a0d0e21e 2497 TAINT_PROPER("connect");
6ad3d225 2498 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2499 RETPUSHYES;
2500 else
2501 RETPUSHUNDEF;
2502
2503nuts:
599cee73 2504 if (ckWARN(WARN_CLOSED))
bc37a18f 2505 report_evil_fh(gv, io, PL_op->op_type);
93189314 2506 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2507 RETPUSHUNDEF;
2508#else
cea2e8a9 2509 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2510#endif
2511}
2512
2513PP(pp_listen)
2514{
a0d0e21e 2515#ifdef HAS_SOCKET
9cad6237 2516 dSP;
a0d0e21e
LW		 2517 int backlog = POPi;
2518 GV *gv = (GV*)POPs;
c289d2f7 2519 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2520
c289d2f7 2521 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2522 goto nuts;
2523
6ad3d225 2524 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2525 RETPUSHYES;
2526 else
2527 RETPUSHUNDEF;
2528
2529nuts:
599cee73 2530 if (ckWARN(WARN_CLOSED))
bc37a18f 2531 report_evil_fh(gv, io, PL_op->op_type);
93189314 2532 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2533 RETPUSHUNDEF;
2534#else
cea2e8a9 2535 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2536#endif
2537}
2538
2539PP(pp_accept)
2540{
a0d0e21e 2541#ifdef HAS_SOCKET
9cad6237 2542 dSP; dTARGET;
a0d0e21e
LW		 2543 GV *ngv;
2544 GV *ggv;
2545 register IO *nstio;
2546 register IO *gstio;
93d47a36
JH		 2547 char namebuf[MAXPATHLEN];
2548#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2549 Sock_size_t len = sizeof (struct sockaddr_in);
2550#else
2551 Sock_size_t len = sizeof namebuf;
2552#endif
a0d0e21e
LW		 2553 int fd;
2554
2555 ggv = (GV*)POPs;
2556 ngv = (GV*)POPs;
2557
2558 if (!ngv)
2559 goto badexit;
2560 if (!ggv)
2561 goto nuts;
2562
2563 gstio = GvIO(ggv);
2564 if (!gstio || !IoIFP(gstio))
2565 goto nuts;
2566
2567 nstio = GvIOn(ngv);
93d47a36 2568 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2569 if (fd < 0)
2570 goto badexit;
a70048fb
AB		 2571 if (IoIFP(nstio))
2572 do_close(ngv, FALSE);
460c8493
IZ		 2573 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2574 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2575 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2576 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2577 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2578 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2579 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2580 goto badexit;
2581 }
8d2a6795
GS		 2582#if defined(HAS_FCNTL) && defined(F_SETFD)
2583 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2584#endif
a0d0e21e 2585
ed79a026 2586#ifdef EPOC
93d47a36 2587 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2588 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2589#endif
381c1bae 2590#ifdef __SCO_VERSION__
93d47a36 2591 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2592#endif
ed79a026 2593
93d47a36 2594 PUSHp(namebuf, len);
a0d0e21e
LW		 2595 RETURN;
2596
2597nuts:
599cee73 2598 if (ckWARN(WARN_CLOSED))
bc37a18f 2599 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2600 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2601
2602badexit:
2603 RETPUSHUNDEF;
2604
2605#else
cea2e8a9 2606 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2607#endif
2608}
2609
2610PP(pp_shutdown)
2611{
a0d0e21e 2612#ifdef HAS_SOCKET
9cad6237 2613 dSP; dTARGET;
a0d0e21e
LW		 2614 int how = POPi;
2615 GV *gv = (GV*)POPs;
2616 register IO *io = GvIOn(gv);
2617
2618 if (!io || !IoIFP(io))
2619 goto nuts;
2620
6ad3d225 2621 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2622 RETURN;
2623
2624nuts:
599cee73 2625 if (ckWARN(WARN_CLOSED))
bc37a18f 2626 report_evil_fh(gv, io, PL_op->op_type);
93189314 2627 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2628 RETPUSHUNDEF;
2629#else
cea2e8a9 2630 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2631#endif
2632}
2633
2634PP(pp_gsockopt)
2635{
2636#ifdef HAS_SOCKET
cea2e8a9 2637 return pp_ssockopt();
a0d0e21e 2638#else
cea2e8a9 2639 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2640#endif
2641}
2642
2643PP(pp_ssockopt)
2644{
a0d0e21e 2645#ifdef HAS_SOCKET
9cad6237 2646 dSP;
533c011a 2647 int optype = PL_op->op_type;
a0d0e21e
LW		 2648 SV *sv;
2649 int fd;
2650 unsigned int optname;
2651 unsigned int lvl;
2652 GV *gv;
2653 register IO *io;
1e422769 2654 Sock_size_t len;
a0d0e21e
LW		 2655
2656 if (optype == OP_GSOCKOPT)
2657 sv = sv_2mortal(NEWSV(22, 257));
2658 else
2659 sv = POPs;
2660 optname = (unsigned int) POPi;
2661 lvl = (unsigned int) POPi;
2662
2663 gv = (GV*)POPs;
2664 io = GvIOn(gv);
2665 if (!io || !IoIFP(io))
2666 goto nuts;
2667
760ac839 2668 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2669 switch (optype) {
2670 case OP_GSOCKOPT:
748a9306 2671 SvGROW(sv, 257);
a0d0e21e 2672 (void)SvPOK_only(sv);
748a9306
LW		 2673 SvCUR_set(sv,256);
2674 *SvEND(sv) ='\0';
1e422769 2675 len = SvCUR(sv);
6ad3d225 2676 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2677 goto nuts2;
1e422769 2678 SvCUR_set(sv, len);
748a9306 2679 *SvEND(sv) ='\0';
a0d0e21e
LW		 2680 PUSHs(sv);
2681 break;
2682 case OP_SSOCKOPT: {
1e422769 2683 char *buf;
2684 int aint;
2685 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2686 STRLEN l;
2687 buf = SvPV(sv, l);
2688 len = l;
1e422769 2689 }
56ee1660 2690 else {
a0d0e21e
LW		 2691 aint = (int)SvIV(sv);
2692 buf = (char*)&aint;
2693 len = sizeof(int);
2694 }
6ad3d225 2695 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2696 goto nuts2;
3280af22 2697 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2698 }
2699 break;
2700 }
2701 RETURN;
2702
2703nuts:
599cee73 2704 if (ckWARN(WARN_CLOSED))
bc37a18f 2705 report_evil_fh(gv, io, optype);
93189314 2706 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2707nuts2:
2708 RETPUSHUNDEF;
2709
2710#else
cea2e8a9 2711 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2712#endif
2713}
2714
2715PP(pp_getsockname)
2716{
2717#ifdef HAS_SOCKET
cea2e8a9 2718 return pp_getpeername();
a0d0e21e 2719#else
cea2e8a9 2720 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2721#endif
2722}
2723
2724PP(pp_getpeername)
2725{
a0d0e21e 2726#ifdef HAS_SOCKET
9cad6237 2727 dSP;
533c011a 2728 int optype = PL_op->op_type;
a0d0e21e
LW		 2729 SV *sv;
2730 int fd;
2731 GV *gv = (GV*)POPs;
2732 register IO *io = GvIOn(gv);
1e422769 2733 Sock_size_t len;
a0d0e21e
LW		 2734
2735 if (!io || !IoIFP(io))
2736 goto nuts;
2737
2738 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2739 (void)SvPOK_only(sv);
1e422769 2740 len = 256;
2741 SvCUR_set(sv, len);
748a9306 2742 *SvEND(sv) ='\0';
760ac839 2743 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2744 switch (optype) {
2745 case OP_GETSOCKNAME:
6ad3d225 2746 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2747 goto nuts2;
2748 break;
2749 case OP_GETPEERNAME:
6ad3d225 2750 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2751 goto nuts2;
490ab354
JH		 2752#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2753 {
2754 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";
2755 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2756 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2757 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2758 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2759 goto nuts2;
490ab354
JH		 2760 }
2761 }
2762#endif
a0d0e21e
LW		 2763 break;
2764 }
13826f2c
CS		 2765#ifdef BOGUS_GETNAME_RETURN
2766 /* Interactive Unix, getpeername() and getsockname()
2767 does not return valid namelen */
1e422769 2768 if (len == BOGUS_GETNAME_RETURN)
2769 len = sizeof(struct sockaddr);
13826f2c 2770#endif
1e422769 2771 SvCUR_set(sv, len);
748a9306 2772 *SvEND(sv) ='\0';
a0d0e21e
LW		 2773 PUSHs(sv);
2774 RETURN;
2775
2776nuts:
599cee73 2777 if (ckWARN(WARN_CLOSED))
bc37a18f 2778 report_evil_fh(gv, io, optype);
93189314 2779 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2780nuts2:
2781 RETPUSHUNDEF;
2782
2783#else
cea2e8a9 2784 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2785#endif
2786}
2787
2788/* Stat calls. */
2789
2790PP(pp_lstat)
2791{
cea2e8a9 2792 return pp_stat();
a0d0e21e
LW		 2793}
2794
2795PP(pp_stat)
2796{
39644a26 2797 dSP;
2dd78f96 2798 GV *gv;
54310121 2799 I32 gimme;
a0d0e21e
LW		 2800 I32 max = 13;
2801
533c011a 2802 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2803 gv = cGVOP_gv;
8a4e5b40 2804 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2805 if (gv != PL_defgv) {
2806 if (ckWARN(WARN_IO))
9014280d 2807 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2808 "lstat() on filehandle %s", GvENAME(gv));
2809 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2810 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2811 }
2812
748a9306 2813 do_fstat:
2dd78f96 2814 if (gv != PL_defgv) {
3280af22 2815 PL_laststype = OP_STAT;
2dd78f96 2816 PL_statgv = gv;
c69006e4 2817 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2818 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2819 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2820 }
9ddeeac9 2821 if (PL_laststatval < 0) {
2dd78f96
JH		 2822 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2823 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2824 max = 0;
9ddeeac9 2825 }
a0d0e21e
LW		 2826 }
2827 else {
748a9306
LW		 2828 SV* sv = POPs;
2829 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2830 gv = (GV*)sv;
748a9306
LW		 2831 goto do_fstat;
2832 }
2833 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2834 gv = (GV*)SvRV(sv);
5d3e98de 2835 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2836 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2837 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2838 goto do_fstat;
2839 }
0510663f 2840 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2841 PL_statgv = Nullgv;
533c011a
NIS		 2842 PL_laststype = PL_op->op_type;
2843 if (PL_op->op_type == OP_LSTAT)
0510663f 2844 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2845 else
0510663f 2846 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2847 if (PL_laststatval < 0) {
0510663f 2848 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2849 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2850 max = 0;
2851 }
2852 }
2853
54310121 2854 gimme = GIMME_V;
2855 if (gimme != G_ARRAY) {
2856 if (gimme != G_VOID)
2857 XPUSHs(boolSV(max));
2858 RETURN;
a0d0e21e
LW		 2859 }
2860 if (max) {
36477c24 2861 EXTEND(SP, max);
2862 EXTEND_MORTAL(max);
1ff81528
PL		 2863 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2865 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2867#if Uid_t_size > IVSIZE
2868 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2869#else
23dcd6c8 2870# if Uid_t_sign <= 0
1ff81528 2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2872# else
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2874# endif
146174a9 2875#endif
301e8125 2876#if Gid_t_size > IVSIZE
146174a9
CB		 2877 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2878#else
23dcd6c8 2879# if Gid_t_sign <= 0
1ff81528 2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2881# else
2882 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2883# endif
146174a9 2884#endif
cbdc8872 2885#ifdef USE_STAT_RDEV
1ff81528 2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2887#else
79cb57f6 2888 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2889#endif
146174a9 2890#if Off_t_size > IVSIZE
4a9d6100 2891 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2892#else
1ff81528 2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2894#endif
cbdc8872 2895#ifdef BIG_TIME
172ae379
JH		 2896 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2899#else
1ff81528
PL		 2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2903#endif
a0d0e21e 2904#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2905 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2907#else
79cb57f6
GS		 2908 PUSHs(sv_2mortal(newSVpvn("", 0)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2910#endif
2911 }
2912 RETURN;
2913}
2914
fbb0b3b3
RGS		 2915/* This macro is used by the stacked filetest operators :
2916 * if the previous filetest failed, short-circuit and pass its value.
2917 * Else, discard it from the stack and continue. --rgs
2918 */
2919#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2920 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2921 else { (void)POPs; PUTBACK; } \
2922 }
2923
a0d0e21e
LW		 2924PP(pp_ftrread)
2925{
9cad6237 2926 I32 result;
2a3ff820 2927 dSP;
fbb0b3b3 2928 STACKED_FTEST_CHECK;
5ff3f7a4 2929#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2930 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2931 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2932 if (result == 0)
2933 RETPUSHYES;
2934 if (result < 0)
2935 RETPUSHUNDEF;
2936 RETPUSHNO;
22865c03
GS		 2937 }
2938 else
cea2e8a9 2939 result = my_stat();
5ff3f7a4 2940#else
cea2e8a9 2941 result = my_stat();
5ff3f7a4 2942#endif
22865c03 2943 SPAGAIN;
a0d0e21e
LW		 2944 if (result < 0)
2945 RETPUSHUNDEF;
3280af22 2946 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2947 RETPUSHYES;
2948 RETPUSHNO;
2949}
2950
2951PP(pp_ftrwrite)
2952{
9cad6237 2953 I32 result;
2a3ff820 2954 dSP;
fbb0b3b3 2955 STACKED_FTEST_CHECK;
5ff3f7a4 2956#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2957 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2958 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2959 if (result == 0)
2960 RETPUSHYES;
2961 if (result < 0)
2962 RETPUSHUNDEF;
2963 RETPUSHNO;
22865c03
GS		 2964 }
2965 else
cea2e8a9 2966 result = my_stat();
5ff3f7a4 2967#else
cea2e8a9 2968 result = my_stat();
5ff3f7a4 2969#endif
22865c03 2970 SPAGAIN;
a0d0e21e
LW		 2971 if (result < 0)
2972 RETPUSHUNDEF;
3280af22 2973 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2974 RETPUSHYES;
2975 RETPUSHNO;
2976}
2977
2978PP(pp_ftrexec)
2979{
9cad6237 2980 I32 result;
2a3ff820 2981 dSP;
fbb0b3b3 2982 STACKED_FTEST_CHECK;
5ff3f7a4 2983#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2984 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2985 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2986 if (result == 0)
2987 RETPUSHYES;
2988 if (result < 0)
2989 RETPUSHUNDEF;
2990 RETPUSHNO;
22865c03
GS		 2991 }
2992 else
cea2e8a9 2993 result = my_stat();
5ff3f7a4 2994#else
cea2e8a9 2995 result = my_stat();
5ff3f7a4 2996#endif
22865c03 2997 SPAGAIN;
a0d0e21e
LW		 2998 if (result < 0)
2999 RETPUSHUNDEF;
3280af22 3000 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3001 RETPUSHYES;
3002 RETPUSHNO;
3003}
3004
3005PP(pp_fteread)
3006{
9cad6237 3007 I32 result;
2a3ff820 3008 dSP;
fbb0b3b3 3009 STACKED_FTEST_CHECK;
5ff3f7a4 3010#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3011 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3012 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3013 if (result == 0)
3014 RETPUSHYES;
3015 if (result < 0)
3016 RETPUSHUNDEF;
3017 RETPUSHNO;
22865c03
GS		 3018 }
3019 else
cea2e8a9 3020 result = my_stat();
5ff3f7a4 3021#else
cea2e8a9 3022 result = my_stat();
5ff3f7a4 3023#endif
22865c03 3024 SPAGAIN;
a0d0e21e
LW		 3025 if (result < 0)
3026 RETPUSHUNDEF;
3280af22 3027 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3028 RETPUSHYES;
3029 RETPUSHNO;
3030}
3031
3032PP(pp_ftewrite)
3033{
9cad6237 3034 I32 result;
2a3ff820 3035 dSP;
fbb0b3b3 3036 STACKED_FTEST_CHECK;
5ff3f7a4 3037#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3038 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3039 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3040 if (result == 0)
3041 RETPUSHYES;
3042 if (result < 0)
3043 RETPUSHUNDEF;
3044 RETPUSHNO;
22865c03
GS		 3045 }
3046 else
cea2e8a9 3047 result = my_stat();
5ff3f7a4 3048#else
cea2e8a9 3049 result = my_stat();
5ff3f7a4 3050#endif
22865c03 3051 SPAGAIN;
a0d0e21e
LW		 3052 if (result < 0)
3053 RETPUSHUNDEF;
3280af22 3054 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3055 RETPUSHYES;
3056 RETPUSHNO;
3057}
3058
3059PP(pp_fteexec)
3060{
9cad6237 3061 I32 result;
2a3ff820 3062 dSP;
fbb0b3b3 3063 STACKED_FTEST_CHECK;
5ff3f7a4 3064#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3065 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3066 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3067 if (result == 0)
3068 RETPUSHYES;
3069 if (result < 0)
3070 RETPUSHUNDEF;
3071 RETPUSHNO;
22865c03
GS		 3072 }
3073 else
cea2e8a9 3074 result = my_stat();
5ff3f7a4 3075#else
cea2e8a9 3076 result = my_stat();
5ff3f7a4 3077#endif
22865c03 3078 SPAGAIN;
a0d0e21e
LW		 3079 if (result < 0)
3080 RETPUSHUNDEF;
3280af22 3081 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3082 RETPUSHYES;
3083 RETPUSHNO;
3084}
3085
3086PP(pp_ftis)
3087{
fbb0b3b3 3088 I32 result;
2a3ff820 3089 dSP;
fbb0b3b3
RGS		 3090 STACKED_FTEST_CHECK;
3091 result = my_stat();
3092 SPAGAIN;
a0d0e21e
LW		 3093 if (result < 0)
3094 RETPUSHUNDEF;
3095 RETPUSHYES;
3096}
3097
3098PP(pp_fteowned)
3099{
cea2e8a9 3100 return pp_ftrowned();
a0d0e21e
LW		 3101}
3102
3103PP(pp_ftrowned)
3104{
fbb0b3b3 3105 I32 result;
2a3ff820 3106 dSP;
fbb0b3b3
RGS		 3107 STACKED_FTEST_CHECK;
3108 result = my_stat();
3109 SPAGAIN;
a0d0e21e
LW		 3110 if (result < 0)
3111 RETPUSHUNDEF;
146174a9
CB		 3112 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3113 PL_euid : PL_uid) )
a0d0e21e
LW		 3114 RETPUSHYES;
3115 RETPUSHNO;
3116}
3117
3118PP(pp_ftzero)
3119{
fbb0b3b3 3120 I32 result;
2a3ff820 3121 dSP;
fbb0b3b3
RGS		 3122 STACKED_FTEST_CHECK;
3123 result = my_stat();
3124 SPAGAIN;
a0d0e21e
LW		 3125 if (result < 0)
3126 RETPUSHUNDEF;
146174a9 3127 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3128 RETPUSHYES;
3129 RETPUSHNO;
3130}
3131
3132PP(pp_ftsize)
3133{
fbb0b3b3 3134 I32 result;
2a3ff820 3135 dSP; dTARGET;
fbb0b3b3
RGS		 3136 STACKED_FTEST_CHECK;
3137 result = my_stat();
3138 SPAGAIN;
a0d0e21e
LW		 3139 if (result < 0)
3140 RETPUSHUNDEF;
146174a9
CB		 3141#if Off_t_size > IVSIZE
3142 PUSHn(PL_statcache.st_size);
3143#else
3280af22 3144 PUSHi(PL_statcache.st_size);
146174a9 3145#endif
a0d0e21e
LW		 3146 RETURN;
3147}
3148
3149PP(pp_ftmtime)
3150{
fbb0b3b3 3151 I32 result;
2a3ff820 3152 dSP; dTARGET;
fbb0b3b3
RGS		 3153 STACKED_FTEST_CHECK;
3154 result = my_stat();
3155 SPAGAIN;
a0d0e21e
LW		 3156 if (result < 0)
3157 RETPUSHUNDEF;
a80d47c2 3158 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3159 RETURN;
3160}
3161
3162PP(pp_ftatime)
3163{
fbb0b3b3 3164 I32 result;
2a3ff820 3165 dSP; dTARGET;
fbb0b3b3
RGS		 3166 STACKED_FTEST_CHECK;
3167 result = my_stat();
3168 SPAGAIN;
a0d0e21e
LW		 3169 if (result < 0)
3170 RETPUSHUNDEF;
a80d47c2 3171 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3172 RETURN;
3173}
3174
3175PP(pp_ftctime)
3176{
fbb0b3b3 3177 I32 result;
2a3ff820 3178 dSP; dTARGET;
fbb0b3b3
RGS		 3179 STACKED_FTEST_CHECK;
3180 result = my_stat();
3181 SPAGAIN;
a0d0e21e
LW		 3182 if (result < 0)
3183 RETPUSHUNDEF;
a80d47c2 3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3185 RETURN;
3186}
3187
3188PP(pp_ftsock)
3189{
fbb0b3b3 3190 I32 result;
2a3ff820 3191 dSP;
fbb0b3b3
RGS		 3192 STACKED_FTEST_CHECK;
3193 result = my_stat();
3194 SPAGAIN;
a0d0e21e
LW		 3195 if (result < 0)
3196 RETPUSHUNDEF;
3280af22 3197 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3198 RETPUSHYES;
3199 RETPUSHNO;
3200}
3201
3202PP(pp_ftchr)
3203{
fbb0b3b3 3204 I32 result;
2a3ff820 3205 dSP;
fbb0b3b3
RGS		 3206 STACKED_FTEST_CHECK;
3207 result = my_stat();
3208 SPAGAIN;
a0d0e21e
LW		 3209 if (result < 0)
3210 RETPUSHUNDEF;
3280af22 3211 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3212 RETPUSHYES;
3213 RETPUSHNO;
3214}
3215
3216PP(pp_ftblk)
3217{
fbb0b3b3 3218 I32 result;
2a3ff820 3219 dSP;
fbb0b3b3
RGS		 3220 STACKED_FTEST_CHECK;
3221 result = my_stat();
3222 SPAGAIN;
a0d0e21e
LW		 3223 if (result < 0)
3224 RETPUSHUNDEF;
3280af22 3225 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3226 RETPUSHYES;
3227 RETPUSHNO;
3228}
3229
3230PP(pp_ftfile)
3231{
fbb0b3b3 3232 I32 result;
2a3ff820 3233 dSP;
fbb0b3b3
RGS		 3234 STACKED_FTEST_CHECK;
3235 result = my_stat();
3236 SPAGAIN;
a0d0e21e
LW		 3237 if (result < 0)
3238 RETPUSHUNDEF;
3280af22 3239 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3240 RETPUSHYES;
3241 RETPUSHNO;
3242}
3243
3244PP(pp_ftdir)
3245{
fbb0b3b3 3246 I32 result;
2a3ff820 3247 dSP;
fbb0b3b3
RGS		 3248 STACKED_FTEST_CHECK;
3249 result = my_stat();
3250 SPAGAIN;
a0d0e21e
LW		 3251 if (result < 0)
3252 RETPUSHUNDEF;
3280af22 3253 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3254 RETPUSHYES;
3255 RETPUSHNO;
3256}
3257
3258PP(pp_ftpipe)
3259{
fbb0b3b3 3260 I32 result;
2a3ff820 3261 dSP;
fbb0b3b3
RGS		 3262 STACKED_FTEST_CHECK;
3263 result = my_stat();
3264 SPAGAIN;
a0d0e21e
LW		 3265 if (result < 0)
3266 RETPUSHUNDEF;
3280af22 3267 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3268 RETPUSHYES;
3269 RETPUSHNO;
3270}
3271
3272PP(pp_ftlink)
3273{
9cad6237 3274 I32 result = my_lstat();
2a3ff820 3275 dSP;
a0d0e21e
LW		 3276 if (result < 0)
3277 RETPUSHUNDEF;
3280af22 3278 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3279 RETPUSHYES;
3280 RETPUSHNO;
3281}
3282
3283PP(pp_ftsuid)
3284{
39644a26 3285 dSP;
a0d0e21e 3286#ifdef S_ISUID
fbb0b3b3
RGS		 3287 I32 result;
3288 STACKED_FTEST_CHECK;
3289 result = my_stat();
a0d0e21e
LW		 3290 SPAGAIN;
3291 if (result < 0)
3292 RETPUSHUNDEF;
3280af22 3293 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3294 RETPUSHYES;
3295#endif
3296 RETPUSHNO;
3297}
3298
3299PP(pp_ftsgid)
3300{
39644a26 3301 dSP;
a0d0e21e 3302#ifdef S_ISGID
fbb0b3b3
RGS		 3303 I32 result;
3304 STACKED_FTEST_CHECK;
3305 result = my_stat();
a0d0e21e
LW		 3306 SPAGAIN;
3307 if (result < 0)
3308 RETPUSHUNDEF;
3280af22 3309 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3310 RETPUSHYES;
3311#endif
3312 RETPUSHNO;
3313}
3314
3315PP(pp_ftsvtx)
3316{
39644a26 3317 dSP;
a0d0e21e 3318#ifdef S_ISVTX
fbb0b3b3
RGS		 3319 I32 result;
3320 STACKED_FTEST_CHECK;
3321 result = my_stat();
a0d0e21e
LW		 3322 SPAGAIN;
3323 if (result < 0)
3324 RETPUSHUNDEF;
3280af22 3325 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3326 RETPUSHYES;
3327#endif
3328 RETPUSHNO;
3329}
3330
3331PP(pp_fttty)
3332{
39644a26 3333 dSP;
a0d0e21e
LW		 3334 int fd;
3335 GV *gv;
7a5fd60d 3336 SV *tmpsv = Nullsv;
fb73857a 3337
fbb0b3b3
RGS		 3338 STACKED_FTEST_CHECK;
3339
533c011a 3340 if (PL_op->op_flags & OPf_REF)
146174a9 3341 gv = cGVOP_gv;
fb73857a 3342 else if (isGV(TOPs))
3343 gv = (GV*)POPs;
3344 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3345 gv = (GV*)SvRV(POPs);
a0d0e21e 3346 else
7a5fd60d 3347 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3348
a0d0e21e 3349 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3350 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3351 else if (tmpsv && SvOK(tmpsv)) {
8c074e2a 3352 char *tmps = SvPV_nolen(tmpsv);
7a5fd60d
NC		 3353 if (isDIGIT(*tmps))
3354 fd = atoi(tmps);
3355 else
3356 RETPUSHUNDEF;
3357 }
a0d0e21e
LW		 3358 else
3359 RETPUSHUNDEF;
6ad3d225 3360 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3361 RETPUSHYES;
3362 RETPUSHNO;
3363}
3364
16d20bd9
AD		 3365#if defined(atarist) /* this will work with atariST. Configure will
3366 make guesses for other systems. */
3367# define FILE_base(f) ((f)->_base)
3368# define FILE_ptr(f) ((f)->_ptr)
3369# define FILE_cnt(f) ((f)->_cnt)
3370# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3371#endif
3372
3373PP(pp_fttext)
3374{
39644a26 3375 dSP;
a0d0e21e
LW		 3376 I32 i;
3377 I32 len;
3378 I32 odd = 0;
3379 STDCHAR tbuf[512];
3380 register STDCHAR *s;
3381 register IO *io;
5f05dabc 3382 register SV *sv;
3383 GV *gv;
146174a9 3384 PerlIO *fp;
a0d0e21e 3385
fbb0b3b3
RGS		 3386 STACKED_FTEST_CHECK;
3387
533c011a 3388 if (PL_op->op_flags & OPf_REF)
146174a9 3389 gv = cGVOP_gv;
5f05dabc 3390 else if (isGV(TOPs))
3391 gv = (GV*)POPs;
3392 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3393 gv = (GV*)SvRV(POPs);
3394 else
3395 gv = Nullgv;
3396
3397 if (gv) {
a0d0e21e 3398 EXTEND(SP, 1);
3280af22
NIS		 3399 if (gv == PL_defgv) {
3400 if (PL_statgv)
3401 io = GvIO(PL_statgv);
a0d0e21e 3402 else {
3280af22 3403 sv = PL_statname;
a0d0e21e
LW		 3404 goto really_filename;
3405 }
3406 }
3407 else {
3280af22
NIS		 3408 PL_statgv = gv;
3409 PL_laststatval = -1;
c69006e4 3410 sv_setpvn(PL_statname, "", 0);
3280af22 3411 io = GvIO(PL_statgv);
a0d0e21e
LW		 3412 }
3413 if (io && IoIFP(io)) {
5f05dabc 3414 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3415 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3416 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3417 if (PL_laststatval < 0)
5f05dabc 3418 RETPUSHUNDEF;
9cbac4c7 3419 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3420 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3421 RETPUSHNO;
3422 else
3423 RETPUSHYES;
9cbac4c7 3424 }
a20bf0c3 3425 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3426 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3427 if (i != EOF)
760ac839 3428 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3429 }
a20bf0c3 3430 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3431 RETPUSHYES;
a20bf0c3
JH		 3432 len = PerlIO_get_bufsiz(IoIFP(io));
3433 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3434 /* sfio can have large buffers - limit to 512 */
3435 if (len > 512)
3436 len = 512;
a0d0e21e
LW		 3437 }
3438 else {
2dd78f96 3439 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3440 gv = cGVOP_gv;
2dd78f96 3441 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3442 }
93189314 3443 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3444 RETPUSHUNDEF;
3445 }
3446 }
3447 else {
3448 sv = POPs;
5f05dabc 3449 really_filename:
3280af22 3450 PL_statgv = Nullgv;
5c9aa243 3451 PL_laststype = OP_STAT;
d5263905 3452 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3453 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
8c074e2a 3454 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen(PL_statname), '\n'))
9014280d 3455 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3456 RETPUSHUNDEF;
3457 }
146174a9
CB		 3458 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3459 if (PL_laststatval < 0) {
3460 (void)PerlIO_close(fp);
5f05dabc 3461 RETPUSHUNDEF;
146174a9 3462 }
60382766 3463 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3464 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3465 (void)PerlIO_close(fp);
a0d0e21e 3466 if (len <= 0) {
533c011a 3467 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3468 RETPUSHNO; /* special case NFS directories */
3469 RETPUSHYES; /* null file is anything */
3470 }
3471 s = tbuf;
3472 }
3473
3474 /* now scan s to look for textiness */
4633a7c4 3475 /* XXX ASCII dependent code */
a0d0e21e 3476
146174a9
CB		 3477#if defined(DOSISH) || defined(USEMYBINMODE)
3478 /* ignore trailing ^Z on short files */
3479 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3480 --len;
3481#endif
3482
a0d0e21e
LW		 3483 for (i = 0; i < len; i++, s++) {
3484 if (!*s) { /* null never allowed in text */
3485 odd += len;
3486 break;
3487 }
9d116dd7 3488#ifdef EBCDIC
301e8125 3489 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3490 odd++;
3491#else
146174a9
CB		 3492 else if (*s & 128) {
3493#ifdef USE_LOCALE
2de3dbcc 3494 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3495 continue;
3496#endif
3497 /* utf8 characters don't count as odd */
fd400ab9 3498 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3499 int ulen = UTF8SKIP(s);
3500 if (ulen < len - i) {
3501 int j;
3502 for (j = 1; j < ulen; j++) {
fd400ab9 3503 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3504 goto not_utf8;
3505 }
3506 --ulen; /* loop does extra increment */
3507 s += ulen;
3508 i += ulen;
3509 continue;
3510 }
3511 }
3512 not_utf8:
3513 odd++;
146174a9 3514 }
a0d0e21e
LW		 3515 else if (*s < 32 &&
3516 *s != '\n' && *s != '\r' && *s != '\b' &&
3517 *s != '\t' && *s != '\f' && *s != 27)
3518 odd++;
9d116dd7 3519#endif
a0d0e21e
LW		 3520 }
3521
533c011a 3522 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3523 RETPUSHNO;
3524 else
3525 RETPUSHYES;
3526}
3527
3528PP(pp_ftbinary)
3529{
cea2e8a9 3530 return pp_fttext();
a0d0e21e
LW		 3531}
3532
3533/* File calls. */
3534
3535PP(pp_chdir)
3536{
39644a26 3537 dSP; dTARGET;
5c144d81 3538 const char *tmps;
a0d0e21e
LW		 3539 SV **svp;
3540
35ae6b54 3541 if( MAXARG == 1 )
5c144d81 3542 tmps = POPpconstx;
35ae6b54
MS		 3543 else
3544 tmps = 0;
3545
3546 if( !tmps || !*tmps ) {
3547 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3548 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3549#ifdef VMS
35ae6b54 3550 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3551#endif
35ae6b54
MS		 3552 )
3553 {
3554 if( MAXARG == 1 )
9014280d 3555 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3556 tmps = SvPV_nolen_const(*svp);
35ae6b54 3557 }
72f496dc 3558 else {
389ec635 3559 PUSHi(0);
b7ab37f8 3560 TAINT_PROPER("chdir");
389ec635
MS		 3561 RETURN;
3562 }
8ea155d1 3563 }
8ea155d1 3564
a0d0e21e 3565 TAINT_PROPER("chdir");
6ad3d225 3566 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3567#ifdef VMS
3568 /* Clear the DEFAULT element of ENV so we'll get the new value
3569 * in the future. */
6b88bc9c 3570 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3571#endif
a0d0e21e
LW		 3572 RETURN;
3573}
3574
3575PP(pp_chown)
3576{
a0d0e21e 3577#ifdef HAS_CHOWN
76ffd3b9
IZ		 3578 dSP; dMARK; dTARGET;
3579 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3580
a0d0e21e
LW		 3581 SP = MARK;
3582 PUSHi(value);
3583 RETURN;
3584#else
0322a713 3585 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3586#endif
3587}
3588
3589PP(pp_chroot)
3590{
a0d0e21e 3591#ifdef HAS_CHROOT
76ffd3b9 3592 dSP; dTARGET;
d05c1ba0 3593 char *tmps = POPpx;
a0d0e21e
LW		 3594 TAINT_PROPER("chroot");
3595 PUSHi( chroot(tmps) >= 0 );
3596 RETURN;
3597#else
cea2e8a9 3598 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3599#endif
3600}
3601
3602PP(pp_unlink)
3603{
39644a26 3604 dSP; dMARK; dTARGET;
a0d0e21e 3605 I32 value;
533c011a 3606 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3607 SP = MARK;
3608 PUSHi(value);
3609 RETURN;
3610}
3611
3612PP(pp_chmod)
3613{
39644a26 3614 dSP; dMARK; dTARGET;
a0d0e21e 3615 I32 value;
533c011a 3616 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3617 SP = MARK;
3618 PUSHi(value);
3619 RETURN;
3620}
3621
3622PP(pp_utime)
3623{
39644a26 3624 dSP; dMARK; dTARGET;
a0d0e21e 3625 I32 value;
533c011a 3626 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3627 SP = MARK;
3628 PUSHi(value);
3629 RETURN;
3630}
3631
3632PP(pp_rename)
3633{
39644a26 3634 dSP; dTARGET;
a0d0e21e 3635 int anum;
e62f0680
NC		 3636 const char *tmps2 = POPpconstx;
3637 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3638 TAINT_PROPER("rename");
3639#ifdef HAS_RENAME
baed7233 3640 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3641#else
6b88bc9c 3642 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3643 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3644 anum = 1;
3645 else {
3654eb6c 3646 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3647 (void)UNLINK(tmps2);
3648 if (!(anum = link(tmps, tmps2)))
3649 anum = UNLINK(tmps);
3650 }
a0d0e21e
LW		 3651 }
3652#endif
3653 SETi( anum >= 0 );
3654 RETURN;
3655}
3656
3657PP(pp_link)
3658{
a0d0e21e 3659#ifdef HAS_LINK
370f6000 3660 dSP; dTARGET;
e62f0680
NC		 3661 const char *tmps2 = POPpconstx;
3662 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3663 TAINT_PROPER("link");
146174a9 3664 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3665 RETURN;
a0d0e21e 3666#else
0322a713 3667 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3668#endif
a0d0e21e
LW		 3669}
3670
3671PP(pp_symlink)
3672{
a0d0e21e 3673#ifdef HAS_SYMLINK
9cad6237 3674 dSP; dTARGET;
83003860
NC		 3675 const char *tmps2 = POPpconstx;
3676 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3677 TAINT_PROPER("symlink");
3678 SETi( symlink(tmps, tmps2) >= 0 );
3679 RETURN;
3680#else
cea2e8a9 3681 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3682#endif
3683}
3684
3685PP(pp_readlink)
3686{
76ffd3b9 3687 dSP;
a0d0e21e 3688#ifdef HAS_SYMLINK
76ffd3b9 3689 dTARGET;
10516c54 3690 const char *tmps;
46fc3d4c 3691 char buf[MAXPATHLEN];
a0d0e21e 3692 int len;
46fc3d4c 3693
fb73857a 3694#ifndef INCOMPLETE_TAINTS
3695 TAINT;
3696#endif
10516c54 3697 tmps = POPpconstx;
97dcea33 3698 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3699 EXTEND(SP, 1);
3700 if (len < 0)
3701 RETPUSHUNDEF;
3702 PUSHp(buf, len);
3703 RETURN;
3704#else
3705 EXTEND(SP, 1);
3706 RETSETUNDEF; /* just pretend it's a normal file */
3707#endif
3708}
3709
3710#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3711STATIC int
b464bac0 3712S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3713{
b464bac0 3714 char * const save_filename = filename;
1e422769 3715 char *cmdline;
3716 char *s;
760ac839 3717 PerlIO *myfp;
1e422769 3718 int anum = 1;
a0d0e21e 3719
1e422769 3720 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3721 strcpy(cmdline, cmd);
3722 strcat(cmdline, " ");
3723 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3724 *s++ = '\\';
3725 *s++ = *filename++;
3726 }
3727 strcpy(s, " 2>&1");
6ad3d225 3728 myfp = PerlProc_popen(cmdline, "r");
1e422769 3729 Safefree(cmdline);
3730
a0d0e21e 3731 if (myfp) {
1e422769 3732 SV *tmpsv = sv_newmortal();
6b88bc9c 3733 /* Need to save/restore 'PL_rs' ?? */
760ac839 3734 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3735 (void)PerlProc_pclose(myfp);
a0d0e21e 3736 if (s != Nullch) {
1e422769 3737 int e;
3738 for (e = 1;
a0d0e21e 3739#ifdef HAS_SYS_ERRLIST
1e422769 3740 e <= sys_nerr
3741#endif
3742 ; e++)
3743 {
3744 /* you don't see this */
3745 char *errmsg =
3746#ifdef HAS_SYS_ERRLIST
3747 sys_errlist[e]
a0d0e21e 3748#else
1e422769 3749 strerror(e)
a0d0e21e 3750#endif
1e422769 3751 ;
3752 if (!errmsg)
3753 break;
3754 if (instr(s, errmsg)) {
3755 SETERRNO(e,0);
3756 return 0;
3757 }
a0d0e21e 3758 }
748a9306 3759 SETERRNO(0,0);
a0d0e21e
LW		 3760#ifndef EACCES
3761#define EACCES EPERM
3762#endif
1e422769 3763 if (instr(s, "cannot make"))
93189314 3764 SETERRNO(EEXIST,RMS_FEX);
1e422769 3765 else if (instr(s, "existing file"))
93189314 3766 SETERRNO(EEXIST,RMS_FEX);
1e422769 3767 else if (instr(s, "ile exists"))
93189314 3768 SETERRNO(EEXIST,RMS_FEX);
1e422769 3769 else if (instr(s, "non-exist"))
93189314 3770 SETERRNO(ENOENT,RMS_FNF);
1e422769 3771 else if (instr(s, "does not exist"))
93189314 3772 SETERRNO(ENOENT,RMS_FNF);
1e422769 3773 else if (instr(s, "not empty"))
93189314 3774 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3775 else if (instr(s, "cannot access"))
93189314 3776 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3777 else
93189314 3778 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3779 return 0;
3780 }
3781 else { /* some mkdirs return no failure indication */
6b88bc9c 3782 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3783 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3784 anum = !anum;
3785 if (anum)
748a9306 3786 SETERRNO(0,0);
a0d0e21e 3787 else
93189314 3788 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3789 }
3790 return anum;
3791 }
3792 else
3793 return 0;
3794}
3795#endif
3796
0c54f65b
RGS		 3797/* This macro removes trailing slashes from a directory name.
3798 * Different operating and file systems take differently to
3799 * trailing slashes. According to POSIX 1003.1 1996 Edition
3800 * any number of trailing slashes should be allowed.
3801 * Thusly we snip them away so that even non-conforming
3802 * systems are happy.
3803 * We should probably do this "filtering" for all
3804 * the functions that expect (potentially) directory names:
3805 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3806 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3807
5c144d81 3808#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3809 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3810 do { \
3811 (len)--; \
3812 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3813 (tmps) = savepvn((tmps), (len)); \
3814 (copy) = TRUE; \
3815 }
3816
a0d0e21e
LW		 3817PP(pp_mkdir)
3818{
39644a26 3819 dSP; dTARGET;
5a211162 3820 int mode;
a0d0e21e
LW		 3821#ifndef HAS_MKDIR
3822 int oldumask;
3823#endif
df25ddba 3824 STRLEN len;
5c144d81 3825 const char *tmps;
df25ddba 3826 bool copy = FALSE;
5a211162
GS		 3827
3828 if (MAXARG > 1)
3829 mode = POPi;
3830 else
3831 mode = 0777;
3832
0c54f65b 3833 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3834
3835 TAINT_PROPER("mkdir");
3836#ifdef HAS_MKDIR
6ad3d225 3837 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3838#else
3839 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3840 oldumask = PerlLIO_umask(0);
3841 PerlLIO_umask(oldumask);
3842 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3843#endif
df25ddba
JH		 3844 if (copy)
3845 Safefree(tmps);
a0d0e21e
LW		 3846 RETURN;
3847}
3848
3849PP(pp_rmdir)
3850{
39644a26 3851 dSP; dTARGET;
0c54f65b 3852 STRLEN len;
5c144d81 3853 const char *tmps;
0c54f65b 3854 bool copy = FALSE;
a0d0e21e 3855
0c54f65b 3856 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3857 TAINT_PROPER("rmdir");
3858#ifdef HAS_RMDIR
0c54f65b 3859 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3860#else
0c54f65b 3861 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3862#endif
0c54f65b
RGS		 3863 if (copy)
3864 Safefree(tmps);
a0d0e21e
LW		 3865 RETURN;
3866}
3867
3868/* Directory calls. */
3869
3870PP(pp_open_dir)
3871{
a0d0e21e 3872#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3873 dSP;
10516c54 3874 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3875 GV *gv = (GV*)POPs;
3876 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3877
3878 if (!io)
3879 goto nope;
3880
3881 if (IoDIRP(io))
6ad3d225
GS		 3882 PerlDir_close(IoDIRP(io));
3883 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3884 goto nope;
3885
3886 RETPUSHYES;
3887nope:
3888 if (!errno)
93189314 3889 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3890 RETPUSHUNDEF;
3891#else
cea2e8a9 3892 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3893#endif
3894}
3895
3896PP(pp_readdir)
3897{
34b7f128
AMS		 3898#if !defined(Direntry_t) || !defined(HAS_READDIR)
3899 DIE(aTHX_ PL_no_dir_func, "readdir");
3900#else
fd8cd3a3 3901#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3902 Direntry_t *readdir (DIR *);
a0d0e21e 3903#endif
34b7f128
AMS		 3904 dSP;
3905
3906 SV *sv;
f54cb97a 3907 const I32 gimme = GIMME;
34b7f128 3908 GV *gv = (GV *)POPs;
a0d0e21e 3909 register Direntry_t *dp;
a0d0e21e
LW		 3910 register IO *io = GvIOn(gv);
3911
3912 if (!io || !IoDIRP(io))
3913 goto nope;
3914
34b7f128
AMS		 3915 do {
3916 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3917 if (!dp)
3918 break;
a0d0e21e 3919#ifdef DIRNAMLEN
34b7f128 3920 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3921#else
34b7f128 3922 sv = newSVpv(dp->d_name, 0);
fb73857a 3923#endif
3924#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3925 if (!(IoFLAGS(io) & IOf_UNTAINT))
3926 SvTAINTED_on(sv);
a0d0e21e 3927#endif
34b7f128 3928 XPUSHs(sv_2mortal(sv));
a0d0e21e 3929 }
34b7f128
AMS		 3930 while (gimme == G_ARRAY);
3931
3932 if (!dp && gimme != G_ARRAY)
3933 goto nope;
3934
a0d0e21e
LW		 3935 RETURN;
3936
3937nope:
3938 if (!errno)
93189314 3939 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3940 if (GIMME == G_ARRAY)
3941 RETURN;
3942 else
3943 RETPUSHUNDEF;
a0d0e21e
LW		 3944#endif
3945}
3946
3947PP(pp_telldir)
3948{
a0d0e21e 3949#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3950 dVAR; dSP; dTARGET;
968dcd91
JH		 3951 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3952 /* XXX netbsd still seemed to.
3953 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3954 --JHI 1999-Feb-02 */
3955# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3956 long telldir (DIR *);
dfe9444c 3957# endif
a0d0e21e
LW		 3958 GV *gv = (GV*)POPs;
3959 register IO *io = GvIOn(gv);
3960
3961 if (!io || !IoDIRP(io))
3962 goto nope;
3963
6ad3d225 3964 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3965 RETURN;
3966nope:
3967 if (!errno)
93189314 3968 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3969 RETPUSHUNDEF;
3970#else
cea2e8a9 3971 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3972#endif
3973}
3974
3975PP(pp_seekdir)
3976{
a0d0e21e 3977#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3978 dSP;
a0d0e21e
LW		 3979 long along = POPl;
3980 GV *gv = (GV*)POPs;
3981 register IO *io = GvIOn(gv);
3982
3983 if (!io || !IoDIRP(io))
3984 goto nope;
3985
6ad3d225 3986 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3987
3988 RETPUSHYES;
3989nope:
3990 if (!errno)
93189314 3991 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3992 RETPUSHUNDEF;
3993#else
cea2e8a9 3994 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3995#endif
3996}
3997
3998PP(pp_rewinddir)
3999{
a0d0e21e 4000#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4001 dSP;
a0d0e21e
LW		 4002 GV *gv = (GV*)POPs;
4003 register IO *io = GvIOn(gv);
4004
4005 if (!io || !IoDIRP(io))
4006 goto nope;
4007
6ad3d225 4008 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4009 RETPUSHYES;
4010nope:
4011 if (!errno)
93189314 4012 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4013 RETPUSHUNDEF;
4014#else
cea2e8a9 4015 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4016#endif
4017}
4018
4019PP(pp_closedir)
4020{
a0d0e21e 4021#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4022 dSP;
a0d0e21e
LW		 4023 GV *gv = (GV*)POPs;
4024 register IO *io = GvIOn(gv);
4025
4026 if (!io || !IoDIRP(io))
4027 goto nope;
4028
4029#ifdef VOID_CLOSEDIR
6ad3d225 4030 PerlDir_close(IoDIRP(io));
a0d0e21e 4031#else
6ad3d225 4032 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4033 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4034 goto nope;
748a9306 4035 }
a0d0e21e
LW		 4036#endif
4037 IoDIRP(io) = 0;
4038
4039 RETPUSHYES;
4040nope:
4041 if (!errno)
93189314 4042 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4043 RETPUSHUNDEF;
4044#else
cea2e8a9 4045 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4046#endif
4047}
4048
4049/* Process control. */
4050
4051PP(pp_fork)
4052{
44a8e56a 4053#ifdef HAS_FORK
39644a26 4054 dSP; dTARGET;
761237fe 4055 Pid_t childpid;
a0d0e21e
LW		 4056 GV *tmpgv;
4057
4058 EXTEND(SP, 1);
45bc9206 4059 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4060 childpid = PerlProc_fork();
a0d0e21e
LW		 4061 if (childpid < 0)
4062 RETSETUNDEF;
4063 if (!childpid) {
4064 /*SUPPRESS 560*/
306196c3
MS		 4065 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4066 SvREADONLY_off(GvSV(tmpgv));
146174a9 4067 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4068 SvREADONLY_on(GvSV(tmpgv));
4069 }
4d76a344
RGS		 4070#ifdef THREADS_HAVE_PIDS
4071 PL_ppid = (IV)getppid();
4072#endif
3280af22 4073 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4074 }
4075 PUSHi(childpid);
4076 RETURN;
4077#else
146174a9 4078# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4079 dSP; dTARGET;
146174a9
CB		 4080 Pid_t childpid;
4081
4082 EXTEND(SP, 1);
4083 PERL_FLUSHALL_FOR_CHILD;
4084 childpid = PerlProc_fork();
60fa28ff
GS		 4085 if (childpid == -1)
4086 RETSETUNDEF;
146174a9
CB		 4087 PUSHi(childpid);
4088 RETURN;
4089# else
0322a713 4090 DIE(aTHX_ PL_no_func, "fork");
146174a9 4091# endif
a0d0e21e
LW		 4092#endif
4093}
4094
4095PP(pp_wait)
4096{
301e8125 4097#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4098 dSP; dTARGET;
761237fe 4099 Pid_t childpid;
a0d0e21e 4100 int argflags;
a0d0e21e 4101
4ffa73a3
JH		 4102 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4103 childpid = wait4pid(-1, &argflags, 0);
4104 else {
4105 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4106 errno == EINTR) {
4107 PERL_ASYNC_CHECK();
4108 }
0a0ada86 4109 }
68a29c53
GS		 4110# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4111 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4112 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4113# else
f86702cc 4114 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4115# endif
44a8e56a 4116 XPUSHi(childpid);
a0d0e21e
LW		 4117 RETURN;
4118#else
0322a713 4119 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4120#endif
4121}
4122
4123PP(pp_waitpid)
4124{
301e8125 4125#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4126 dSP; dTARGET;
2ec0bfb3
SG		 4127 Pid_t pid;
4128 Pid_t result;
a0d0e21e
LW		 4129 int optype;
4130 int argflags;
a0d0e21e 4131
a0d0e21e 4132 optype = POPi;
2ec0bfb3 4133 pid = TOPi;
4ffa73a3 4134 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4135 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4136 else {
2ec0bfb3 4137 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4138 errno == EINTR) {
4139 PERL_ASYNC_CHECK();
4140 }
0a0ada86 4141 }
68a29c53
GS		 4142# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4143 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4144 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4145# else
2ec0bfb3 4146 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4147# endif
2ec0bfb3 4148 SETi(result);
a0d0e21e
LW		 4149 RETURN;
4150#else
0322a713 4151 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4152#endif
4153}
4154
4155PP(pp_system)
4156{
39644a26 4157 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4158 I32 value;
76ffd3b9 4159 int result;
a0d0e21e 4160
bbd7eb8a
RD		 4161 if (PL_tainting) {
4162 TAINT_ENV();
4163 while (++MARK <= SP) {
10516c54 4164 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4165 if (PL_tainted)
bbd7eb8a
RD		 4166 break;
4167 }
4168 MARK = ORIGMARK;
5a445156 4169 TAINT_PROPER("system");
a0d0e21e 4170 }
45bc9206 4171 PERL_FLUSHALL_FOR_CHILD;
273b0206 4172#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4173 {
eb160463
GS		 4174 Pid_t childpid;
4175 int pp[2];
27da23d5 4176 I32 did_pipes = 0;
eb160463
GS		 4177
4178 if (PerlProc_pipe(pp) >= 0)
4179 did_pipes = 1;
4180 while ((childpid = PerlProc_fork()) == -1) {
4181 if (errno != EAGAIN) {
4182 value = -1;
4183 SP = ORIGMARK;
4184 PUSHi(value);
4185 if (did_pipes) {
4186 PerlLIO_close(pp[0]);
4187 PerlLIO_close(pp[1]);
4188 }
4189 RETURN;
4190 }
4191 sleep(5);
4192 }
4193 if (childpid > 0) {
4194 Sigsave_t ihand,qhand; /* place to save signals during system() */
4195 int status;
4196
4197 if (did_pipes)
4198 PerlLIO_close(pp[1]);
64ca3a65 4199#ifndef PERL_MICRO
eb160463
GS		 4200 rsignal_save(SIGINT, SIG_IGN, &ihand);
4201 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4202#endif
eb160463
GS		 4203 do {
4204 result = wait4pid(childpid, &status, 0);
4205 } while (result == -1 && errno == EINTR);
64ca3a65 4206#ifndef PERL_MICRO
eb160463
GS		 4207 (void)rsignal_restore(SIGINT, &ihand);
4208 (void)rsignal_restore(SIGQUIT, &qhand);
4209#endif
4210 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4211 do_execfree(); /* free any memory child malloced on fork */
4212 SP = ORIGMARK;
4213 if (did_pipes) {
4214 int errkid;
4215 int n = 0, n1;
4216
4217 while (n < sizeof(int)) {
4218 n1 = PerlLIO_read(pp[0],
4219 (void*)(((char*)&errkid)+n),
4220 (sizeof(int)) - n);
4221 if (n1 <= 0)
4222 break;
4223 n += n1;
4224 }
4225 PerlLIO_close(pp[0]);
4226 if (n) { /* Error */
4227 if (n != sizeof(int))
4228 DIE(aTHX_ "panic: kid popen errno read");
4229 errno = errkid; /* Propagate errno from kid */
4230 STATUS_CURRENT = -1;
4231 }
4232 }
4233 PUSHi(STATUS_CURRENT);
4234 RETURN;
4235 }
4236 if (did_pipes) {
4237 PerlLIO_close(pp[0]);
d5a9bfb0 4238#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4239 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4240#endif
eb160463 4241 }
e0a1f643
JH		 4242 if (PL_op->op_flags & OPf_STACKED) {
4243 SV *really = *++MARK;
4244 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4245 }
4246 else if (SP - MARK != 1)
4247 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4248 else {
8c074e2a 4249 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4250 }
4251 PerlProc__exit(-1);
d5a9bfb0 4252 }
c3293030 4253#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4254 PL_statusvalue = 0;
4255 result = 0;
911d147d 4256 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4257 SV *really = *++MARK;
27da23d5 4258# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4259 value = (I32)do_aspawn(really, MARK, SP);
4260# else
c5be433b 4261 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4262# endif
a0d0e21e 4263 }
54725af6 4264 else if (SP - MARK != 1) {
27da23d5 4265# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4266 value = (I32)do_aspawn(Nullsv, MARK, SP);
4267# else
c5be433b 4268 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4269# endif
4270 }
a0d0e21e 4271 else {
8c074e2a 4272 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4273 }
922b1888
GS		 4274 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4275 result = 1;
f86702cc 4276 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4277 do_execfree();
4278 SP = ORIGMARK;
922b1888 4279 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4280#endif /* !FORK or VMS */
4281 RETURN;
4282}
4283
4284PP(pp_exec)
4285{
39644a26 4286 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4287 I32 value;
4288
bbd7eb8a
RD		 4289 if (PL_tainting) {
4290 TAINT_ENV();
4291 while (++MARK <= SP) {
10516c54 4292 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4293 if (PL_tainted)
bbd7eb8a
RD		 4294 break;
4295 }
4296 MARK = ORIGMARK;
5a445156 4297 TAINT_PROPER("exec");
bbd7eb8a 4298 }
45bc9206 4299 PERL_FLUSHALL_FOR_CHILD;
533c011a 4300 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4301 SV *really = *++MARK;
4302 value = (I32)do_aexec(really, MARK, SP);
4303 }
4304 else if (SP - MARK != 1)
4305#ifdef VMS
4306 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4307#else
092bebab
JH		 4308# ifdef __OPEN_VM
4309 {
c5be433b 4310 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4311 value = 0;
4312 }
4313# else
a0d0e21e 4314 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4315# endif
a0d0e21e
LW		 4316#endif
4317 else {
a0d0e21e 4318#ifdef VMS
8c074e2a 4319 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4320#else
092bebab 4321# ifdef __OPEN_VM
8c074e2a 4322 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4323 value = 0;
4324# else
8c074e2a 4325 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4326# endif
a0d0e21e
LW		 4327#endif
4328 }
146174a9 4329
a0d0e21e
LW		 4330 SP = ORIGMARK;
4331 PUSHi(value);
4332 RETURN;
4333}
4334
4335PP(pp_kill)
4336{
9cad6237 4337#ifdef HAS_KILL
39644a26 4338 dSP; dMARK; dTARGET;
a0d0e21e 4339 I32 value;
533c011a 4340 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4341 SP = MARK;
4342 PUSHi(value);
4343 RETURN;
4344#else
0322a713 4345 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4346#endif
4347}
4348
4349PP(pp_getppid)
4350{
4351#ifdef HAS_GETPPID
39644a26 4352 dSP; dTARGET;
4d76a344 4353# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4354 if (PL_ppid != 1 && getppid() == 1)
4355 /* maybe the parent process has died. Refresh ppid cache */
4356 PL_ppid = 1;
4d76a344
RGS		 4357 XPUSHi( PL_ppid );
4358# else
a0d0e21e 4359 XPUSHi( getppid() );
4d76a344 4360# endif
a0d0e21e
LW		 4361 RETURN;
4362#else
cea2e8a9 4363 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4364#endif
4365}
4366
4367PP(pp_getpgrp)
4368{
4369#ifdef HAS_GETPGRP
39644a26 4370 dSP; dTARGET;
d8a83dd3 4371 Pid_t pid;
9853a804 4372 Pid_t pgrp;
a0d0e21e
LW		 4373
4374 if (MAXARG < 1)
4375 pid = 0;
4376 else
4377 pid = SvIVx(POPs);
c3293030 4378#ifdef BSD_GETPGRP
9853a804 4379 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4380#else
146174a9 4381 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4382 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4383 pgrp = getpgrp();
a0d0e21e 4384#endif
9853a804 4385 XPUSHi(pgrp);
a0d0e21e
LW		 4386 RETURN;
4387#else
cea2e8a9 4388 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4389#endif
4390}
4391
4392PP(pp_setpgrp)
4393{
4394#ifdef HAS_SETPGRP
39644a26 4395 dSP; dTARGET;
d8a83dd3
JH		 4396 Pid_t pgrp;
4397 Pid_t pid;
a0d0e21e
LW		 4398 if (MAXARG < 2) {
4399 pgrp = 0;
4400 pid = 0;
4401 }
4402 else {
4403 pgrp = POPi;
4404 pid = TOPi;
4405 }
4406
4407 TAINT_PROPER("setpgrp");
c3293030
IZ		 4408#ifdef BSD_SETPGRP
4409 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4410#else
146174a9
CB		 4411 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4412 || (pid != 0 && pid != PerlProc_getpid()))
4413 {
4414 DIE(aTHX_ "setpgrp can't take arguments");
4415 }
a0d0e21e
LW		 4416 SETi( setpgrp() >= 0 );
4417#endif /* USE_BSDPGRP */
4418 RETURN;
4419#else
cea2e8a9 4420 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4421#endif
4422}
4423
4424PP(pp_getpriority)
4425{
a0d0e21e 4426#ifdef HAS_GETPRIORITY
9cad6237 4427 dSP; dTARGET;
d05c1ba0
JH		 4428 int who = POPi;
4429 int which = TOPi;
a0d0e21e
LW		 4430 SETi( getpriority(which, who) );
4431 RETURN;
4432#else
cea2e8a9 4433 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4434#endif
4435}
4436
4437PP(pp_setpriority)
4438{
a0d0e21e 4439#ifdef HAS_SETPRIORITY
9cad6237 4440 dSP; dTARGET;
d05c1ba0
JH		 4441 int niceval = POPi;
4442 int who = POPi;
4443 int which = TOPi;
a0d0e21e
LW		 4444 TAINT_PROPER("setpriority");
4445 SETi( setpriority(which, who, niceval) >= 0 );
4446 RETURN;
4447#else
cea2e8a9 4448 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4449#endif
4450}
4451
4452/* Time calls. */
4453
4454PP(pp_time)
4455{
39644a26 4456 dSP; dTARGET;
cbdc8872 4457#ifdef BIG_TIME
4458 XPUSHn( time(Null(Time_t*)) );
4459#else
a0d0e21e 4460 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4461#endif
a0d0e21e
LW		 4462 RETURN;
4463}
4464
a0d0e21e
LW		 4465PP(pp_tms)
4466{
9cad6237 4467#ifdef HAS_TIMES
39644a26 4468 dSP;
a0d0e21e 4469 EXTEND(SP, 4);
a0d0e21e 4470#ifndef VMS
3280af22 4471 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4472#else
6b88bc9c 4473 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4474 /* struct tms, though same data */
4475 /* is returned. */
a0d0e21e
LW		 4476#endif
4477
5311654c 4478 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4479 if (GIMME == G_ARRAY) {
5311654c
JH		 4480 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4481 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4482 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4483 }
4484 RETURN;
9cad6237 4485#else
2f42fcb0
JH		 4486# ifdef PERL_MICRO
4487 dSP;
4488 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4489 EXTEND(SP, 4);
4490 if (GIMME == G_ARRAY) {
4491 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4492 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4493 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4494 }
4495 RETURN;
4496# else
9cad6237 4497 DIE(aTHX_ "times not implemented");
2f42fcb0 4498# endif
55497cff 4499#endif /* HAS_TIMES */
a0d0e21e
LW		 4500}
4501
4502PP(pp_localtime)
4503{
cea2e8a9 4504 return pp_gmtime();
a0d0e21e
LW		 4505}
4506
4507PP(pp_gmtime)
4508{
39644a26 4509 dSP;
a0d0e21e 4510 Time_t when;
bfed75c6 4511 const struct tm *tmbuf;
27da23d5
JH		 4512 static const char * const dayname[] =
4513 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4514 static const char * const monname[] =
4515 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4516 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4517
4518 if (MAXARG < 1)
4519 (void)time(&when);
4520 else
cbdc8872 4521#ifdef BIG_TIME
4522 when = (Time_t)SvNVx(POPs);
4523#else
a0d0e21e 4524 when = (Time_t)SvIVx(POPs);
cbdc8872 4525#endif
a0d0e21e 4526
533c011a 4527 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4528 tmbuf = localtime(&when);
4529 else
4530 tmbuf = gmtime(&when);
4531
a0d0e21e 4532 if (GIMME != G_ARRAY) {
46fc3d4c 4533 SV *tsv;
9a5ff6d9
AB		 4534 EXTEND(SP, 1);
4535 EXTEND_MORTAL(1);
a0d0e21e
LW		 4536 if (!tmbuf)
4537 RETPUSHUNDEF;
be28567c 4538 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4539 dayname[tmbuf->tm_wday],
4540 monname[tmbuf->tm_mon],
be28567c
GS		 4541 tmbuf->tm_mday,
4542 tmbuf->tm_hour,
4543 tmbuf->tm_min,
4544 tmbuf->tm_sec,
4545 tmbuf->tm_year + 1900);
46fc3d4c 4546 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4547 }
4548 else if (tmbuf) {
9a5ff6d9
AB		 4549 EXTEND(SP, 9);
4550 EXTEND_MORTAL(9);
4551 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4552 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4553 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4554 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4555 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4556 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4557 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4560 }
4561 RETURN;
4562}
4563
4564PP(pp_alarm)
4565{
9cad6237 4566#ifdef HAS_ALARM
39644a26 4567 dSP; dTARGET;
a0d0e21e 4568 int anum;
a0d0e21e
LW		 4569 anum = POPi;
4570 anum = alarm((unsigned int)anum);
4571 EXTEND(SP, 1);
4572 if (anum < 0)
4573 RETPUSHUNDEF;
c6419e06 4574 PUSHi(anum);
a0d0e21e
LW		 4575 RETURN;
4576#else
0322a713 4577 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4578#endif
4579}
4580
4581PP(pp_sleep)
4582{
39644a26 4583 dSP; dTARGET;
a0d0e21e
LW		 4584 I32 duration;
4585 Time_t lasttime;
4586 Time_t when;
4587
4588 (void)time(&lasttime);
4589 if (MAXARG < 1)
76e3520e 4590 PerlProc_pause();
a0d0e21e
LW		 4591 else {
4592 duration = POPi;
76e3520e 4593 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4594 }
4595 (void)time(&when);
4596 XPUSHi(when - lasttime);
4597 RETURN;
4598}
4599
4600/* Shared memory. */
4601
4602PP(pp_shmget)
4603{
cea2e8a9 4604 return pp_semget();
a0d0e21e
LW		 4605}
4606
4607PP(pp_shmctl)
4608{
cea2e8a9 4609 return pp_semctl();
a0d0e21e
LW		 4610}
4611
4612PP(pp_shmread)
4613{
cea2e8a9 4614 return pp_shmwrite();
a0d0e21e
LW		 4615}
4616
4617PP(pp_shmwrite)
4618{
4619#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4620 dSP; dMARK; dTARGET;
533c011a 4621 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4622 SP = MARK;
4623 PUSHi(value);
4624 RETURN;
4625#else
cea2e8a9 4626 return pp_semget();
a0d0e21e
LW		 4627#endif
4628}
4629
4630/* Message passing. */
4631
4632PP(pp_msgget)
4633{
cea2e8a9 4634 return pp_semget();
a0d0e21e
LW		 4635}
4636
4637PP(pp_msgctl)
4638{
cea2e8a9 4639 return pp_semctl();
a0d0e21e
LW		 4640}
4641
4642PP(pp_msgsnd)
4643{
4644#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4645 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4646 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4647 SP = MARK;
4648 PUSHi(value);
4649 RETURN;
4650#else
cea2e8a9 4651 return pp_semget();
a0d0e21e
LW		 4652#endif
4653}
4654
4655PP(pp_msgrcv)
4656{
4657#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4658 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4659 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4660 SP = MARK;
4661 PUSHi(value);
4662 RETURN;
4663#else
cea2e8a9 4664 return pp_semget();
a0d0e21e
LW		 4665#endif
4666}
4667
4668/* Semaphores. */
4669
4670PP(pp_semget)
4671{
4672#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4673 dSP; dMARK; dTARGET;
533c011a 4674 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4675 SP = MARK;
4676 if (anum == -1)
4677 RETPUSHUNDEF;
4678 PUSHi(anum);
4679 RETURN;
4680#else
cea2e8a9 4681 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4682#endif
4683}
4684
4685PP(pp_semctl)
4686{
4687#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4688 dSP; dMARK; dTARGET;
533c011a 4689 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4690 SP = MARK;
4691 if (anum == -1)
4692 RETSETUNDEF;
4693 if (anum != 0) {
4694 PUSHi(anum);
4695 }
4696 else {
8903cb82 4697 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4698 }
4699 RETURN;
4700#else
cea2e8a9 4701 return pp_semget();
a0d0e21e
LW		 4702#endif
4703}
4704
4705PP(pp_semop)
4706{
4707#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4708 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4709 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4710 SP = MARK;
4711 PUSHi(value);
4712 RETURN;
4713#else
cea2e8a9 4714 return pp_semget();
a0d0e21e
LW		 4715#endif
4716}
4717
4718/* Get system info. */
4719
4720PP(pp_ghbyname)
4721{
693762b4 4722#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4723 return pp_ghostent();
a0d0e21e 4724#else
cea2e8a9 4725 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4726#endif
4727}
4728
4729PP(pp_ghbyaddr)
4730{
693762b4 4731#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4732 return pp_ghostent();
a0d0e21e 4733#else
cea2e8a9 4734 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4735#endif
4736}
4737
4738PP(pp_ghostent)
4739{
693762b4 4740#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4741 dSP;
533c011a 4742 I32 which = PL_op->op_type;
a0d0e21e
LW		 4743 register char **elem;
4744 register SV *sv;
dc45a647 4745#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4746 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4747 struct hostent *gethostbyname(Netdb_name_t);
4748 struct hostent *gethostent(void);
a0d0e21e
LW		 4749#endif
4750 struct hostent *hent;
4751 unsigned long len;
4752
4753 EXTEND(SP, 10);
edd309b7 4754 if (which == OP_GHBYNAME) {
dc45a647 4755#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4756 char* name = POPpbytex;
4757 hent = PerlSock_gethostbyname(name);
dc45a647 4758#else
cea2e8a9 4759 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4760#endif
edd309b7 4761 }
a0d0e21e 4762 else if (which == OP_GHBYADDR) {
dc45a647 4763#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4764 int addrtype = POPi;
748a9306 4765 SV *addrsv = POPs;
a0d0e21e 4766 STRLEN addrlen;
595ae481 4767 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4768
4599a1de 4769 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4770#else
cea2e8a9 4771 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4772#endif
a0d0e21e
LW		 4773 }
4774 else
4775#ifdef HAS_GETHOSTENT
6ad3d225 4776 hent = PerlSock_gethostent();
a0d0e21e 4777#else
cea2e8a9 4778 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4779#endif
4780
4781#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4782 if (!hent) {
4783#ifdef USE_REENTRANT_API
4784# ifdef USE_GETHOSTENT_ERRNO
4785 h_errno = PL_reentrant_buffer->_gethostent_errno;
4786# endif
4787#endif
4788 STATUS_NATIVE_SET(h_errno);
4789 }
a0d0e21e
LW		 4790#endif
4791
4792 if (GIMME != G_ARRAY) {
4793 PUSHs(sv = sv_newmortal());
4794 if (hent) {
4795 if (which == OP_GHBYNAME) {
fd0af264 4796 if (hent->h_addr)
4797 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4798 }
4799 else
4800 sv_setpv(sv, (char*)hent->h_name);
4801 }
4802 RETURN;
4803 }
4804
4805 if (hent) {
3280af22 4806 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4807 sv_setpv(sv, (char*)hent->h_name);
3280af22 4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4809 for (elem = hent->h_aliases; elem && *elem; elem++) {
4810 sv_catpv(sv, *elem);
4811 if (elem[1])
4812 sv_catpvn(sv, " ", 1);
4813 }
3280af22 4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4815 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4816 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4817 len = hent->h_length;
1e422769 4818 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4819#ifdef h_addr
4820 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4821 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4822 sv_setpvn(sv, *elem, len);
4823 }
4824#else
6b88bc9c 4825 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4826 if (hent->h_addr)
4827 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4828#endif /* h_addr */
4829 }
4830 RETURN;
4831#else
cea2e8a9 4832 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4833#endif
4834}
4835
4836PP(pp_gnbyname)
4837{
693762b4 4838#ifdef HAS_GETNETBYNAME
cea2e8a9 4839 return pp_gnetent();
a0d0e21e 4840#else
cea2e8a9 4841 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4842#endif
4843}
4844
4845PP(pp_gnbyaddr)
4846{
693762b4 4847#ifdef HAS_GETNETBYADDR
cea2e8a9 4848 return pp_gnetent();
a0d0e21e 4849#else
cea2e8a9 4850 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4851#endif
4852}
4853
4854PP(pp_gnetent)
4855{
693762b4 4856#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4857 dSP;
533c011a 4858 I32 which = PL_op->op_type;
a0d0e21e
LW		 4859 register char **elem;
4860 register SV *sv;
dc45a647 4861#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4862 struct netent *getnetbyaddr(Netdb_net_t, int);
4863 struct netent *getnetbyname(Netdb_name_t);
4864 struct netent *getnetent(void);
8ac85365 4865#endif
a0d0e21e
LW		 4866 struct netent *nent;
4867
edd309b7 4868 if (which == OP_GNBYNAME){
dc45a647 4869#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4870 char *name = POPpbytex;
4871 nent = PerlSock_getnetbyname(name);
dc45a647 4872#else
cea2e8a9 4873 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4874#endif
edd309b7 4875 }
a0d0e21e 4876 else if (which == OP_GNBYADDR) {
dc45a647 4877#ifdef HAS_GETNETBYADDR
a0d0e21e 4878 int addrtype = POPi;
3bb7c1b4 4879 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4880 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4881#else
cea2e8a9 4882 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4883#endif
a0d0e21e
LW		 4884 }
4885 else
dc45a647 4886#ifdef HAS_GETNETENT
76e3520e 4887 nent = PerlSock_getnetent();
dc45a647 4888#else
cea2e8a9 4889 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4890#endif
a0d0e21e 4891
10bc17b6
JH		 4892#ifdef HOST_NOT_FOUND
4893 if (!nent) {
4894#ifdef USE_REENTRANT_API
4895# ifdef USE_GETNETENT_ERRNO
4896 h_errno = PL_reentrant_buffer->_getnetent_errno;
4897# endif
4898#endif
4899 STATUS_NATIVE_SET(h_errno);
4900 }
4901#endif
4902
a0d0e21e
LW		 4903 EXTEND(SP, 4);
4904 if (GIMME != G_ARRAY) {
4905 PUSHs(sv = sv_newmortal());
4906 if (nent) {
4907 if (which == OP_GNBYNAME)
1e422769 4908 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4909 else
4910 sv_setpv(sv, nent->n_name);
4911 }
4912 RETURN;
4913 }
4914
4915 if (nent) {
3280af22 4916 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4917 sv_setpv(sv, nent->n_name);
3280af22 4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4919 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4920 sv_catpv(sv, *elem);
4921 if (elem[1])
4922 sv_catpvn(sv, " ", 1);
4923 }
3280af22 4924 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4925 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4926 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4927 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4928 }
4929
4930 RETURN;
4931#else
cea2e8a9 4932 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4933#endif
4934}
4935
4936PP(pp_gpbyname)
4937{
693762b4 4938#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4939 return pp_gprotoent();
a0d0e21e 4940#else
cea2e8a9 4941 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4942#endif
4943}
4944
4945PP(pp_gpbynumber)
4946{
693762b4 4947#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4948 return pp_gprotoent();
a0d0e21e 4949#else
cea2e8a9 4950 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4951#endif
4952}
4953
4954PP(pp_gprotoent)
4955{
693762b4 4956#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4957 dSP;
533c011a 4958 I32 which = PL_op->op_type;
a0d0e21e 4959 register char **elem;
301e8125 4960 register SV *sv;
dc45a647 4961#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4962 struct protoent *getprotobyname(Netdb_name_t);
4963 struct protoent *getprotobynumber(int);
4964 struct protoent *getprotoent(void);
8ac85365 4965#endif
a0d0e21e
LW		 4966 struct protoent *pent;
4967
edd309b7 4968 if (which == OP_GPBYNAME) {
e5c9fcd0 4969#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4970 char* name = POPpbytex;
4971 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4972#else
cea2e8a9 4973 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4974#endif
edd309b7
JH		 4975 }
4976 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4977#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4978 int number = POPi;
4979 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4980#else
edd309b7 4981 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4982#endif
edd309b7 4983 }
a0d0e21e 4984 else
e5c9fcd0 4985#ifdef HAS_GETPROTOENT
6ad3d225 4986 pent = PerlSock_getprotoent();
e5c9fcd0 4987#else
cea2e8a9 4988 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4989#endif
a0d0e21e
LW		 4990
4991 EXTEND(SP, 3);
4992 if (GIMME != G_ARRAY) {
4993 PUSHs(sv = sv_newmortal());
4994 if (pent) {
4995 if (which == OP_GPBYNAME)
1e422769 4996 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4997 else
4998 sv_setpv(sv, pent->p_name);
4999 }
5000 RETURN;
5001 }
5002
5003 if (pent) {
3280af22 5004 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5005 sv_setpv(sv, pent->p_name);
3280af22 5006 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5007 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5008 sv_catpv(sv, *elem);
5009 if (elem[1])
5010 sv_catpvn(sv, " ", 1);
5011 }
3280af22 5012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5013 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5014 }
5015
5016 RETURN;
5017#else
cea2e8a9 5018 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5019#endif
5020}
5021
5022PP(pp_gsbyname)
5023{
9ec75305 5024#ifdef HAS_GETSERVBYNAME
cea2e8a9 5025 return pp_gservent();
a0d0e21e 5026#else
cea2e8a9 5027 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5028#endif
5029}
5030
5031PP(pp_gsbyport)
5032{
9ec75305 5033#ifdef HAS_GETSERVBYPORT
cea2e8a9 5034 return pp_gservent();
a0d0e21e 5035#else
cea2e8a9 5036 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5037#endif
5038}
5039
5040PP(pp_gservent)
5041{
693762b4 5042#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5043 dSP;
533c011a 5044 I32 which = PL_op->op_type;
a0d0e21e
LW		 5045 register char **elem;
5046 register SV *sv;
dc45a647 5047#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5048 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5049 struct servent *getservbyport(int, Netdb_name_t);
5050 struct servent *getservent(void);
8ac85365 5051#endif
a0d0e21e
LW		 5052 struct servent *sent;
5053
5054 if (which == OP_GSBYNAME) {
dc45a647 5055#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5056 char *proto = POPpbytex;
5057 char *name = POPpbytex;
a0d0e21e
LW		 5058
5059 if (proto && !*proto)
5060 proto = Nullch;
5061
6ad3d225 5062 sent = PerlSock_getservbyname(name, proto);
dc45a647 5063#else
cea2e8a9 5064 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5065#endif
a0d0e21e
LW		 5066 }
5067 else if (which == OP_GSBYPORT) {
dc45a647 5068#ifdef HAS_GETSERVBYPORT
42e0c139 5069 char *proto = POPpbytex;
eb160463 5070 unsigned short port = (unsigned short)POPu;
a0d0e21e 5071
2b872cca
SR		 5072 if (proto && !*proto)
5073 proto = Nullch;
5074
36477c24 5075#ifdef HAS_HTONS
6ad3d225 5076 port = PerlSock_htons(port);
36477c24 5077#endif
6ad3d225 5078 sent = PerlSock_getservbyport(port, proto);
dc45a647 5079#else
cea2e8a9 5080 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5081#endif
a0d0e21e
LW		 5082 }
5083 else
e5c9fcd0 5084#ifdef HAS_GETSERVENT
6ad3d225 5085 sent = PerlSock_getservent();
e5c9fcd0 5086#else
cea2e8a9 5087 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5088#endif
a0d0e21e
LW		 5089
5090 EXTEND(SP, 4);
5091 if (GIMME != G_ARRAY) {
5092 PUSHs(sv = sv_newmortal());
5093 if (sent) {
5094 if (which == OP_GSBYNAME) {
5095#ifdef HAS_NTOHS
6ad3d225 5096 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5097#else
1e422769 5098 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5099#endif
5100 }
5101 else
5102 sv_setpv(sv, sent->s_name);
5103 }
5104 RETURN;
5105 }
5106
5107 if (sent) {
3280af22 5108 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5109 sv_setpv(sv, sent->s_name);
3280af22 5110 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5111 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5112 sv_catpv(sv, *elem);
5113 if (elem[1])
5114 sv_catpvn(sv, " ", 1);
5115 }
3280af22 5116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5117#ifdef HAS_NTOHS
76e3520e 5118 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5119#else
1e422769 5120 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5121#endif
3280af22 5122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5123 sv_setpv(sv, sent->s_proto);
5124 }
5125
5126 RETURN;
5127#else
cea2e8a9 5128 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5129#endif
5130}
5131
5132PP(pp_shostent)
5133{
693762b4 5134#ifdef HAS_SETHOSTENT
9cad6237 5135 dSP;
76e3520e 5136 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5137 RETSETYES;
5138#else
cea2e8a9 5139 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5140#endif
5141}
5142
5143PP(pp_snetent)
5144{
693762b4 5145#ifdef HAS_SETNETENT
9cad6237 5146 dSP;
76e3520e 5147 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5148 RETSETYES;
5149#else
cea2e8a9 5150 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5151#endif
5152}
5153
5154PP(pp_sprotoent)
5155{
693762b4 5156#ifdef HAS_SETPROTOENT
9cad6237 5157 dSP;
76e3520e 5158 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5159 RETSETYES;
5160#else
cea2e8a9 5161 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5162#endif
5163}
5164
5165PP(pp_sservent)
5166{
693762b4 5167#ifdef HAS_SETSERVENT
9cad6237 5168 dSP;
76e3520e 5169 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5170 RETSETYES;
5171#else
cea2e8a9 5172 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5173#endif
5174}
5175
5176PP(pp_ehostent)
5177{
693762b4 5178#ifdef HAS_ENDHOSTENT
9cad6237 5179 dSP;
76e3520e 5180 PerlSock_endhostent();
924508f0 5181 EXTEND(SP,1);
a0d0e21e
LW		 5182 RETPUSHYES;
5183#else
cea2e8a9 5184 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5185#endif
5186}
5187
5188PP(pp_enetent)
5189{
693762b4 5190#ifdef HAS_ENDNETENT
9cad6237 5191 dSP;
76e3520e 5192 PerlSock_endnetent();
924508f0 5193 EXTEND(SP,1);
a0d0e21e
LW		 5194 RETPUSHYES;
5195#else
cea2e8a9 5196 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5197#endif
5198}
5199
5200PP(pp_eprotoent)
5201{
693762b4 5202#ifdef HAS_ENDPROTOENT
9cad6237 5203 dSP;
76e3520e 5204 PerlSock_endprotoent();
924508f0 5205 EXTEND(SP,1);
a0d0e21e
LW		 5206 RETPUSHYES;
5207#else
cea2e8a9 5208 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5209#endif
5210}
5211
5212PP(pp_eservent)
5213{
693762b4 5214#ifdef HAS_ENDSERVENT
9cad6237 5215 dSP;
76e3520e 5216 PerlSock_endservent();
924508f0 5217 EXTEND(SP,1);
a0d0e21e
LW		 5218 RETPUSHYES;
5219#else
cea2e8a9 5220 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5221#endif
5222}
5223
5224PP(pp_gpwnam)
5225{
5226#ifdef HAS_PASSWD
cea2e8a9 5227 return pp_gpwent();
a0d0e21e 5228#else
cea2e8a9 5229 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5230#endif
5231}
5232
5233PP(pp_gpwuid)
5234{
5235#ifdef HAS_PASSWD
cea2e8a9 5236 return pp_gpwent();
a0d0e21e 5237#else
cea2e8a9 5238 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5239#endif
5240}
5241
5242PP(pp_gpwent)
5243{
0994c4d0 5244#ifdef HAS_PASSWD
9cad6237 5245 dSP;
533c011a 5246 I32 which = PL_op->op_type;
a0d0e21e 5247 register SV *sv;
e3aefe8d 5248 struct passwd *pwent = NULL;
301e8125 5249 /*
bcf53261
JH		 5250 * We currently support only the SysV getsp* shadow password interface.
5251 * The interface is declared in <shadow.h> and often one needs to link
5252 * with -lsecurity or some such.
5253 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5254 * (and SCO?)
5255 *
5256 * AIX getpwnam() is clever enough to return the encrypted password
5257 * only if the caller (euid?) is root.
5258 *
e549f1c5 5259 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5260 * seem to contain more than one interface for accessing the shadow
5261 * password databases, possibly for compatibility reasons.
3813c136 5262 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5263 * are much more complicated, but also very similar to each other.
5264 *
5265 * <sys/types.h>
5266 * <sys/security.h>
5267 * <prot.h>
5268 * struct pr_passwd *getprpw*();
5269 * The password is in
3813c136
JH		 5270 * char getprpw*(...).ufld.fd_encrypt[]
5271 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5272 *
5273 * <sys/types.h>
5274 * <sys/security.h>
5275 * <prot.h>
5276 * struct es_passwd *getespw*();
5277 * The password is in
5278 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5279 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5280 *
e1920a95 5281 * <userpw.h> (AIX)
e549f1c5
JH		 5282 * struct userpw *getuserpw();
5283 * The password is in
5284 * char *(getuserpw(...)).spw_upw_passwd
5285 * (but the de facto standard getpwnam() should work okay)
5286 *
3813c136 5287 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5288 *
5289 * In HP-UX for getprpw*() the manual page claims that one should include
5290 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5291 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5292 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5293 *
5294 * Note that <sys/security.h> is already probed for, but currently
5295 * it is only included in special cases.
301e8125 5296 *
bcf53261
JH		 5297 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5298 * be preferred interface, even though also the getprpw*() interface
5299 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5300 * One also needs to call set_auth_parameters() in main() before
5301 * doing anything else, whether one is using getespw*() or getprpw*().
5302 *
5303 * Note that accessing the shadow databases can be magnitudes
5304 * slower than accessing the standard databases.
bcf53261
JH		 5305 *
5306 * --jhi
5307 */
a0d0e21e 5308
9e5f0c48
JH		 5309# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5310 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5311 * the pw_comment is left uninitialized. */
5312 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5313# endif
5314
e3aefe8d
JH		 5315 switch (which) {
5316 case OP_GPWNAM:
edd309b7
JH		 5317 {
5318 char* name = POPpbytex;
5319 pwent = getpwnam(name);
5320 }
5321 break;
e3aefe8d 5322 case OP_GPWUID:
edd309b7
JH		 5323 {
5324 Uid_t uid = POPi;
5325 pwent = getpwuid(uid);
5326 }
e3aefe8d
JH		 5327 break;
5328 case OP_GPWENT:
1883634f 5329# ifdef HAS_GETPWENT
e3aefe8d 5330 pwent = getpwent();
faea9016
IRC		 5331#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5332 if (pwent) pwent = getpwnam(pwent->pw_name);
5333#endif
1883634f 5334# else
a45d1c96 5335 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5336# endif
e3aefe8d
JH		 5337 break;
5338 }
8c0bfa08 5339
a0d0e21e
LW		 5340 EXTEND(SP, 10);
5341 if (GIMME != G_ARRAY) {
5342 PUSHs(sv = sv_newmortal());
5343 if (pwent) {
5344 if (which == OP_GPWNAM)
1883634f 5345# if Uid_t_sign <= 0
1e422769 5346 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5347# else
23dcd6c8 5348 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5349# endif
a0d0e21e
LW		 5350 else
5351 sv_setpv(sv, pwent->pw_name);
5352 }
5353 RETURN;
5354 }
5355
5356 if (pwent) {
3280af22 5357 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5358 sv_setpv(sv, pwent->pw_name);
6ee623d5 5359
3280af22 5360 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5361 SvPOK_off(sv);
5362 /* If we have getspnam(), we try to dig up the shadow
5363 * password. If we are underprivileged, the shadow
5364 * interface will set the errno to EACCES or similar,
5365 * and return a null pointer. If this happens, we will
5366 * use the dummy password (usually "*" or "x") from the
5367 * standard password database.
5368 *
5369 * In theory we could skip the shadow call completely
5370 * if euid != 0 but in practice we cannot know which
5371 * security measures are guarding the shadow databases
5372 * on a random platform.
5373 *
5374 * Resist the urge to use additional shadow interfaces.
5375 * Divert the urge to writing an extension instead.
5376 *
5377 * --jhi */
e549f1c5
JH		 5378 /* Some AIX setups falsely(?) detect some getspnam(), which
5379 * has a different API than the Solaris/IRIX one. */
5380# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5381 {
5382 struct spwd *spwent;
5383 int saverrno; /* Save and restore errno so that
5384 * underprivileged attempts seem
5385 * to have never made the unsccessful
5386 * attempt to retrieve the shadow password. */
5387
5388 saverrno = errno;
5389 spwent = getspnam(pwent->pw_name);
5390 errno = saverrno;
5391 if (spwent && spwent->sp_pwdp)
5392 sv_setpv(sv, spwent->sp_pwdp);
5393 }
f1066039 5394# endif
e020c87d 5395# ifdef PWPASSWD
3813c136
JH		 5396 if (!SvPOK(sv)) /* Use the standard password, then. */
5397 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5398# endif
3813c136 5399
1883634f 5400# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5401 /* passwd is tainted because user himself can diddle with it.
5402 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5403 SvTAINTED_on(sv);
1883634f 5404# endif
6ee623d5 5405
3280af22 5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5407# if Uid_t_sign <= 0
1e422769 5408 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5409# else
23dcd6c8 5410 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5411# endif
6ee623d5 5412
3280af22 5413 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5414# if Uid_t_sign <= 0
1e422769 5415 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5416# else
23dcd6c8 5417 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5418# endif
3813c136
JH		 5419 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5420 * because of the poor interface of the Perl getpw*(),
5421 * not because there's some standard/convention saying so.
5422 * A better interface would have been to return a hash,
5423 * but we are accursed by our history, alas. --jhi. */
3280af22 5424 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5425# ifdef PWCHANGE
1e422769 5426 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5427# else
1883634f
JH		 5428# ifdef PWQUOTA
5429 sv_setiv(sv, (IV)pwent->pw_quota);
5430# else
a1757be1 5431# ifdef PWAGE
a0d0e21e 5432 sv_setpv(sv, pwent->pw_age);
a1757be1 5433# endif
6ee623d5
GS		 5434# endif
5435# endif
6ee623d5 5436
3813c136
JH		 5437 /* pw_class and pw_comment are mutually exclusive--.
5438 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5439 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5440# ifdef PWCLASS
a0d0e21e 5441 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5442# else
5443# ifdef PWCOMMENT
a0d0e21e 5444 sv_setpv(sv, pwent->pw_comment);
1883634f 5445# endif
6ee623d5 5446# endif
6ee623d5 5447
3280af22 5448 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5449# ifdef PWGECOS
a0d0e21e 5450 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5451# endif
5452# ifndef INCOMPLETE_TAINTS
d2719217 5453 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5454 SvTAINTED_on(sv);
1883634f 5455# endif
6ee623d5 5456
3280af22 5457 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5458 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5459
3280af22 5460 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5461 sv_setpv(sv, pwent->pw_shell);
1883634f 5462# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5463 /* pw_shell is tainted because user himself can diddle with it. */
5464 SvTAINTED_on(sv);
1883634f 5465# endif
6ee623d5 5466
1883634f 5467# ifdef PWEXPIRE
6b88bc9c 5468 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5469 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5470# endif
a0d0e21e
LW		 5471 }
5472 RETURN;
5473#else
cea2e8a9 5474 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5475#endif
5476}
5477
5478PP(pp_spwent)
5479{
d493b042 5480#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5481 dSP;
a0d0e21e
LW		 5482 setpwent();
5483 RETPUSHYES;
5484#else
cea2e8a9 5485 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5486#endif
5487}
5488
5489PP(pp_epwent)
5490{
28e8609d 5491#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5492 dSP;
a0d0e21e
LW		 5493 endpwent();
5494 RETPUSHYES;
5495#else
cea2e8a9 5496 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5497#endif
5498}
5499
5500PP(pp_ggrnam)
5501{
5502#ifdef HAS_GROUP
cea2e8a9 5503 return pp_ggrent();
a0d0e21e 5504#else
cea2e8a9 5505 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5506#endif
5507}
5508
5509PP(pp_ggrgid)
5510{
5511#ifdef HAS_GROUP
cea2e8a9 5512 return pp_ggrent();
a0d0e21e 5513#else
cea2e8a9 5514 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5515#endif
5516}
5517
5518PP(pp_ggrent)
5519{
0994c4d0 5520#ifdef HAS_GROUP
9cad6237 5521 dSP;
533c011a 5522 I32 which = PL_op->op_type;
a0d0e21e
LW		 5523 register char **elem;
5524 register SV *sv;
5525 struct group *grent;
5526
edd309b7
JH		 5527 if (which == OP_GGRNAM) {
5528 char* name = POPpbytex;
5529 grent = (struct group *)getgrnam(name);
5530 }
5531 else if (which == OP_GGRGID) {
5532 Gid_t gid = POPi;
5533 grent = (struct group *)getgrgid(gid);
5534 }
a0d0e21e 5535 else
0994c4d0 5536#ifdef HAS_GETGRENT
a0d0e21e 5537 grent = (struct group *)getgrent();
0994c4d0
JH		 5538#else
5539 DIE(aTHX_ PL_no_func, "getgrent");
5540#endif
a0d0e21e
LW		 5541
5542 EXTEND(SP, 4);
5543 if (GIMME != G_ARRAY) {
5544 PUSHs(sv = sv_newmortal());
5545 if (grent) {
5546 if (which == OP_GGRNAM)
1e422769 5547 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5548 else
5549 sv_setpv(sv, grent->gr_name);
5550 }
5551 RETURN;
5552 }
5553
5554 if (grent) {
3280af22 5555 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5556 sv_setpv(sv, grent->gr_name);
28e8609d 5557
3280af22 5558 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5559#ifdef GRPASSWD
a0d0e21e 5560 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5561#endif
5562
3280af22 5563 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5564 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5565
5b56e7c5 5566#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5567 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5568 /* In UNICOS/mk (_CRAYMPP) the multithreading
5569 * versions (getgrnam_r, getgrgid_r)
5570 * seem to return an illegal pointer
5571 * as the group members list, gr_mem.
5572 * getgrent() doesn't even have a _r version
5573 * but the gr_mem is poisonous anyway.
5574 * So yes, you cannot get the list of group
5575 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5576 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5577 sv_catpv(sv, *elem);
5578 if (elem[1])
5579 sv_catpvn(sv, " ", 1);
5580 }
3d7e8424 5581#endif
a0d0e21e
LW		 5582 }
5583
5584 RETURN;
5585#else
cea2e8a9 5586 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5587#endif
5588}
5589
5590PP(pp_sgrent)
5591{
28e8609d 5592#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5593 dSP;
a0d0e21e
LW		 5594 setgrent();
5595 RETPUSHYES;
5596#else
cea2e8a9 5597 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5598#endif
5599}
5600
5601PP(pp_egrent)
5602{
28e8609d 5603#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5604 dSP;
a0d0e21e
LW		 5605 endgrent();
5606 RETPUSHYES;
5607#else
cea2e8a9 5608 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5609#endif
5610}
5611
5612PP(pp_getlogin)
5613{
a0d0e21e 5614#ifdef HAS_GETLOGIN
9cad6237 5615 dSP; dTARGET;
a0d0e21e
LW		 5616 char *tmps;
5617 EXTEND(SP, 1);
76e3520e 5618 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5619 RETPUSHUNDEF;
5620 PUSHp(tmps, strlen(tmps));
5621 RETURN;
5622#else
cea2e8a9 5623 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5624#endif
5625}
5626
5627/* Miscellaneous. */
5628
5629PP(pp_syscall)
5630{
d2719217 5631#ifdef HAS_SYSCALL
39644a26 5632 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5633 register I32 items = SP - MARK;
5634 unsigned long a[20];
5635 register I32 i = 0;
5636 I32 retval = -1;
5637
3280af22 5638 if (PL_tainting) {
a0d0e21e 5639 while (++MARK <= SP) {
bbce6d69 5640 if (SvTAINTED(*MARK)) {
5641 TAINT;
5642 break;
5643 }
a0d0e21e
LW		 5644 }
5645 MARK = ORIGMARK;
5646 TAINT_PROPER("syscall");
5647 }
5648
5649 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5650 * or where sizeof(long) != sizeof(char*). But such machines will
5651 * not likely have syscall implemented either, so who cares?
5652 */
5653 while (++MARK <= SP) {
5654 if (SvNIOK(*MARK) || !i)
5655 a[i++] = SvIV(*MARK);
3280af22 5656 else if (*MARK == &PL_sv_undef)
748a9306 5657 a[i++] = 0;
301e8125 5658 else
8b6b16e7 5659 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5660 if (i > 15)
5661 break;
5662 }
5663 switch (items) {
5664 default:
cea2e8a9 5665 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5666 case 0:
cea2e8a9 5667 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5668 case 1:
5669 retval = syscall(a[0]);
5670 break;
5671 case 2:
5672 retval = syscall(a[0],a[1]);
5673 break;
5674 case 3:
5675 retval = syscall(a[0],a[1],a[2]);
5676 break;
5677 case 4:
5678 retval = syscall(a[0],a[1],a[2],a[3]);
5679 break;
5680 case 5:
5681 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5682 break;
5683 case 6:
5684 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5685 break;
5686 case 7:
5687 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5688 break;
5689 case 8:
5690 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5691 break;
5692#ifdef atarist
5693 case 9:
5694 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5695 break;
5696 case 10:
5697 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5698 break;
5699 case 11:
5700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5701 a[10]);
5702 break;
5703 case 12:
5704 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5705 a[10],a[11]);
5706 break;
5707 case 13:
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5709 a[10],a[11],a[12]);
5710 break;
5711 case 14:
5712 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5713 a[10],a[11],a[12],a[13]);
5714 break;
5715#endif /* atarist */
5716 }
5717 SP = ORIGMARK;
5718 PUSHi(retval);
5719 RETURN;
5720#else
cea2e8a9 5721 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5722#endif
5723}
5724
ff68c719 5725#ifdef FCNTL_EMULATE_FLOCK
301e8125 5726
ff68c719 5727/* XXX Emulate flock() with fcntl().
5728 What's really needed is a good file locking module.
5729*/
5730
cea2e8a9
GS		 5731static int
5732fcntl_emulate_flock(int fd, int operation)
ff68c719 5733{
5734 struct flock flock;
301e8125 5735
ff68c719 5736 switch (operation & ~LOCK_NB) {
5737 case LOCK_SH:
5738 flock.l_type = F_RDLCK;
5739 break;
5740 case LOCK_EX:
5741 flock.l_type = F_WRLCK;
5742 break;
5743 case LOCK_UN:
5744 flock.l_type = F_UNLCK;
5745 break;
5746 default:
5747 errno = EINVAL;
5748 return -1;
5749 }
5750 flock.l_whence = SEEK_SET;
d9b3e12d 5751 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5752
ff68c719 5753 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5754}
5755
5756#endif /* FCNTL_EMULATE_FLOCK */
5757
5758#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5759
5760/* XXX Emulate flock() with lockf(). This is just to increase
5761 portability of scripts. The calls are not completely
5762 interchangeable. What's really needed is a good file
5763 locking module.
5764*/
5765
76c32331 5766/* The lockf() constants might have been defined in <unistd.h>.
5767 Unfortunately, <unistd.h> causes troubles on some mixed
5768 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5769
5770 Further, the lockf() constants aren't POSIX, so they might not be
5771 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5772 just stick in the SVID values and be done with it. Sigh.
5773*/
5774
5775# ifndef F_ULOCK
5776# define F_ULOCK 0 /* Unlock a previously locked region */
5777# endif
5778# ifndef F_LOCK
5779# define F_LOCK 1 /* Lock a region for exclusive use */
5780# endif
5781# ifndef F_TLOCK
5782# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5783# endif
5784# ifndef F_TEST
5785# define F_TEST 3 /* Test a region for other processes locks */
5786# endif
5787
cea2e8a9
GS		 5788static int
5789lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5790{
5791 int i;
84902520
TB		 5792 int save_errno;
5793 Off_t pos;
5794
5795 /* flock locks entire file so for lockf we need to do the same */
5796 save_errno = errno;
6ad3d225 5797 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5798 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5799 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5800 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5801 errno = save_errno;
5802
16d20bd9
AD		 5803 switch (operation) {
5804
5805 /* LOCK_SH - get a shared lock */
5806 case LOCK_SH:
5807 /* LOCK_EX - get an exclusive lock */
5808 case LOCK_EX:
5809 i = lockf (fd, F_LOCK, 0);
5810 break;
5811
5812 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5813 case LOCK_SH|LOCK_NB:
5814 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5815 case LOCK_EX|LOCK_NB:
5816 i = lockf (fd, F_TLOCK, 0);
5817 if (i == -1)
5818 if ((errno == EAGAIN) || (errno == EACCES))
5819 errno = EWOULDBLOCK;
5820 break;
5821
ff68c719 5822 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5823 case LOCK_UN:
ff68c719 5824 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5825 i = lockf (fd, F_ULOCK, 0);
5826 break;
5827
5828 /* Default - can't decipher operation */
5829 default:
5830 i = -1;
5831 errno = EINVAL;
5832 break;
5833 }
84902520
TB		 5834
5835 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5836 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5837
16d20bd9
AD		 5838 return (i);
5839}
ff68c719 5840
5841#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5842
5843/*
5844 * Local variables:
5845 * c-indentation-style: bsd
5846 * c-basic-offset: 4
5847 * indent-tabs-mode: t
5848 * End:
5849 *
37442d52
RGS		 5850 * ex: set ts=8 sts=4 sw=4 noet:
5851 */
Unnamed repository; edit this file 'description' to name the repository.