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[perl5.git] / pp_sys.c
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a0d0e21e
LW		 1/* pp_sys.c
2 *
e6906430 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
f27f8384 4 * 2000, 2001, 2002, 2003, 2004, 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
40d34c0d
SB		 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
301e8125
NIS		 48#ifdef HAS_SYSCALL
49#ifdef __cplusplus
8ac85365
NIS		 50extern "C" int syscall(unsigned long,...);
51#endif
52#endif
53
76c32331 54#ifdef I_SYS_WAIT
55# include <sys/wait.h>
56#endif
57
58#ifdef I_SYS_RESOURCE
59# include <sys/resource.h>
16d20bd9 60#endif
a0d0e21e 61
2986a63f
JH		 62#ifdef NETWARE
63NETDB_DEFINE_CONTEXT
64#endif
65
a0d0e21e 66#ifdef HAS_SELECT
1e743fda
JH		 67# ifdef I_SYS_SELECT
68# include <sys/select.h>
69# endif
a0d0e21e 70#endif
a0d0e21e 71
dc45a647
MB		 72/* XXX Configure test needed.
73 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 74 applications, see "extern int errno in perl.h". Creating such
75 a test requires taking into account the differences between
76 compiling multithreaded and singlethreaded ($ccflags et al).
77 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 78*/
cb50131a 79#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 80extern int h_errno;
81#endif
82
83#ifdef HAS_PASSWD
84# ifdef I_PWD
85# include <pwd.h>
86# else
fd8cd3a3 87# if !defined(VMS)
20ce7b12
GS		 88 struct passwd *getpwnam (char *);
89 struct passwd *getpwuid (Uid_t);
fd8cd3a3 90# endif
a0d0e21e 91# endif
28e8609d 92# ifdef HAS_GETPWENT
10bc17b6 93#ifndef getpwent
20ce7b12 94 struct passwd *getpwent (void);
c2a8f790
JH		 95#elif defined (VMS) && defined (my_getpwent)
96 struct passwd *Perl_my_getpwent (void);
10bc17b6 97#endif
28e8609d 98# endif
a0d0e21e
LW		 99#endif
100
101#ifdef HAS_GROUP
102# ifdef I_GRP
103# include <grp.h>
104# else
20ce7b12
GS		 105 struct group *getgrnam (char *);
106 struct group *getgrgid (Gid_t);
a0d0e21e 107# endif
28e8609d 108# ifdef HAS_GETGRENT
10bc17b6 109#ifndef getgrent
20ce7b12 110 struct group *getgrent (void);
10bc17b6 111#endif
28e8609d 112# endif
a0d0e21e
LW		 113#endif
114
115#ifdef I_UTIME
3730b96e 116# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 117# include <sys/utime.h>
118# else
119# include <utime.h>
120# endif
a0d0e21e 121#endif
a0d0e21e 122
cbdc8872 123#ifdef HAS_CHSIZE
cd52b7b2 124# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
125# undef my_chsize
126# endif
6ad3d225 127# define my_chsize PerlLIO_chsize
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
JH		 175#define ZBTLEN 10
176static char zero_but_true[ZBTLEN + 1] = "0 but true";
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
f0798ba3
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{
cea2e8a9 312 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 313 /*NOTREACHED*/
314 return -1;
315}
316#endif
317
a0d0e21e
LW		 318PP(pp_backtick)
319{
39644a26 320 dSP; dTARGET;
760ac839 321 PerlIO *fp;
2d8e6c8d
GS		 322 STRLEN n_a;
323 char *tmps = POPpx;
54310121 324 I32 gimme = GIMME_V;
16fe6d59 325 char *mode = "r";
54310121 326
a0d0e21e 327 TAINT_PROPER("``");
16fe6d59
GS		 328 if (PL_op->op_private & OPpOPEN_IN_RAW)
329 mode = "rb";
330 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
331 mode = "rt";
332 fp = PerlProc_popen(tmps, mode);
a0d0e21e 333 if (fp) {
ac27b0f5
NIS		 334 char *type = NULL;
335 if (PL_curcop->cop_io) {
336 type = SvPV_nolen(PL_curcop->cop_io);
337 }
ac27b0f5
NIS		 338 if (type && *type)
339 PerlIO_apply_layers(aTHX_ fp,mode,type);
340
54310121 341 if (gimme == G_VOID) {
96827780
MB		 342 char tmpbuf[256];
343 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 344 /*SUPPRESS 530*/
345 ;
346 }
347 else if (gimme == G_SCALAR) {
fa326138
RG		 348 SV *oldrs = PL_rs;
349 PL_rs = &PL_sv_undef;
aa689395 350 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
a0d0e21e
LW		 351 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
352 /*SUPPRESS 530*/
353 ;
fa326138 354 PL_rs = oldrs;
a0d0e21e 355 XPUSHs(TARG);
aa689395 356 SvTAINTED_on(TARG);
a0d0e21e
LW		 357 }
358 else {
359 SV *sv;
360
361 for (;;) {
8d6dde3e 362 sv = NEWSV(56, 79);
a0d0e21e
LW		 363 if (sv_gets(sv, fp, 0) == Nullch) {
364 SvREFCNT_dec(sv);
365 break;
366 }
367 XPUSHs(sv_2mortal(sv));
368 if (SvLEN(sv) - SvCUR(sv) > 20) {
369 SvLEN_set(sv, SvCUR(sv)+1);
370 Renew(SvPVX(sv), SvLEN(sv), char);
371 }
aa689395 372 SvTAINTED_on(sv);
a0d0e21e
LW		 373 }
374 }
6ad3d225 375 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 376 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 377 }
378 else {
f86702cc 379 STATUS_NATIVE_SET(-1);
54310121 380 if (gimme == G_SCALAR)
a0d0e21e
LW		 381 RETPUSHUNDEF;
382 }
383
384 RETURN;
385}
386
387PP(pp_glob)
388{
389 OP *result;
f5284f61
IZ		 390 tryAMAGICunTARGET(iter, -1);
391
71686f12
GS		 392 /* Note that we only ever get here if File::Glob fails to load
393 * without at the same time croaking, for some reason, or if
394 * perl was built with PERL_EXTERNAL_GLOB */
395
a0d0e21e 396 ENTER;
a0d0e21e 397
c90c0ff4 398#ifndef VMS
3280af22 399 if (PL_tainting) {
7bac28a0 400 /*
401 * The external globbing program may use things we can't control,
402 * so for security reasons we must assume the worst.
403 */
404 TAINT;
22c35a8c 405 taint_proper(PL_no_security, "glob");
7bac28a0 406 }
c90c0ff4 407#endif /* !VMS */
7bac28a0 408
3280af22
NIS		 409 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
410 PL_last_in_gv = (GV*)*PL_stack_sp--;
a0d0e21e 411
3280af22 412 SAVESPTR(PL_rs); /* This is not permanent, either. */
79cb57f6 413 PL_rs = sv_2mortal(newSVpvn("\000", 1));
c07a80fd 414#ifndef DOSISH
415#ifndef CSH
6b88bc9c 416 *SvPVX(PL_rs) = '\n';
a0d0e21e 417#endif /* !CSH */
55497cff 418#endif /* !DOSISH */
c07a80fd 419
a0d0e21e
LW		 420 result = do_readline();
421 LEAVE;
422 return result;
423}
424
a0d0e21e
LW		 425PP(pp_rcatline)
426{
146174a9 427 PL_last_in_gv = cGVOP_gv;
a0d0e21e
LW		 428 return do_readline();
429}
430
431PP(pp_warn)
432{
39644a26 433 dSP; dMARK;
06bf62c7 434 SV *tmpsv;
a0d0e21e 435 char *tmps;
06bf62c7 436 STRLEN len;
a0d0e21e
LW		 437 if (SP - MARK != 1) {
438 dTARGET;
3280af22 439 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7 440 tmpsv = TARG;
a0d0e21e
LW		 441 SP = MARK + 1;
442 }
443 else {
06bf62c7 444 tmpsv = TOPs;
a0d0e21e 445 }
06bf62c7 446 tmps = SvPV(tmpsv, len);
5e8f8cda 447 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3
GS		 448 SV *error = ERRSV;
449 (void)SvUPGRADE(error, SVt_PV);
450 if (SvPOK(error) && SvCUR(error))
451 sv_catpv(error, "\t...caught");
06bf62c7
GS		 452 tmpsv = error;
453 tmps = SvPV(tmpsv, len);
a0d0e21e 454 }
06bf62c7
GS		 455 if (!tmps || !len)
456 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
457
cb50131a 458 Perl_warn(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 459 RETSETYES;
460}
461
462PP(pp_die)
463{
39644a26 464 dSP; dMARK;
a0d0e21e 465 char *tmps;
06bf62c7
GS		 466 SV *tmpsv;
467 STRLEN len;
468 bool multiarg = 0;
96e176bf
CL		 469#ifdef VMS
470 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
471#endif
a0d0e21e
LW		 472 if (SP - MARK != 1) {
473 dTARGET;
3280af22 474 do_join(TARG, &PL_sv_no, MARK, SP);
06bf62c7
GS		 475 tmpsv = TARG;
476 tmps = SvPV(tmpsv, len);
477 multiarg = 1;
a0d0e21e
LW		 478 SP = MARK + 1;
479 }
480 else {
4e6ea2c3 481 tmpsv = TOPs;
5b7ea690 482 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
a0d0e21e 483 }
06bf62c7 484 if (!tmps || !len) {
4e6ea2c3
GS		 485 SV *error = ERRSV;
486 (void)SvUPGRADE(error, SVt_PV);
06bf62c7
GS		 487 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
488 if (!multiarg)
4e6ea2c3 489 SvSetSV(error,tmpsv);
06bf62c7 490 else if (sv_isobject(error)) {
05423cc9
GS		 491 HV *stash = SvSTASH(SvRV(error));
492 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
493 if (gv) {
146174a9 494 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
b448e4fe 495 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
05423cc9
GS		 496 EXTEND(SP, 3);
497 PUSHMARK(SP);
498 PUSHs(error);
499 PUSHs(file);
500 PUSHs(line);
501 PUTBACK;
864dbfa3
GS		 502 call_sv((SV*)GvCV(gv),
503 G_SCALAR|G_EVAL|G_KEEPERR);
3280af22 504 sv_setsv(error,*PL_stack_sp--);
05423cc9
GS		 505 }
506 }
b3fe4827 507 DIE(aTHX_ Nullformat);
4e6ea2c3
GS		 508 }
509 else {
510 if (SvPOK(error) && SvCUR(error))
511 sv_catpv(error, "\t...propagated");
06bf62c7
GS		 512 tmpsv = error;
513 tmps = SvPV(tmpsv, len);
4e6ea2c3 514 }
a0d0e21e 515 }
06bf62c7
GS		 516 if (!tmps || !len)
517 tmpsv = sv_2mortal(newSVpvn("Died", 4));
518
cb50131a 519 DIE(aTHX_ "%"SVf, tmpsv);
a0d0e21e
LW		 520}
521
522/* I/O. */
523
524PP(pp_open)
525{
39644a26 526 dSP;
a567e93b
NIS		 527 dMARK; dORIGMARK;
528 dTARGET;
a0d0e21e
LW		 529 GV *gv;
530 SV *sv;
5b468f54 531 IO *io;
a0d0e21e
LW		 532 char *tmps;
533 STRLEN len;
4592e6ca 534 MAGIC *mg;
a567e93b 535 bool ok;
a0d0e21e 536
a567e93b 537 gv = (GV *)*++MARK;
5f05dabc 538 if (!isGV(gv))
cea2e8a9 539 DIE(aTHX_ PL_no_usym, "filehandle");
5b468f54 540 if ((io = GvIOp(gv)))
36477c24 541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
853846ea 542
5b468f54 543 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
a567e93b
NIS		 544 /* Method's args are same as ours ... */
545 /* ... except handle is replaced by the object */
5b468f54 546 *MARK-- = SvTIED_obj((SV*)io, mg);
a567e93b 547 PUSHMARK(MARK);
4592e6ca
NIS		 548 PUTBACK;
549 ENTER;
864dbfa3 550 call_method("OPEN", G_SCALAR);
4592e6ca
NIS		 551 LEAVE;
552 SPAGAIN;
553 RETURN;
554 }
555
a567e93b
NIS		 556 if (MARK < SP) {
557 sv = *++MARK;
558 }
559 else {
560 sv = GvSV(gv);
561 }
562
a0d0e21e 563 tmps = SvPV(sv, len);
a567e93b
NIS		 564 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
565 SP = ORIGMARK;
566 if (ok)
3280af22
NIS		 567 PUSHi( (I32)PL_forkprocess );
568 else if (PL_forkprocess == 0) /* we are a new child */
a0d0e21e
LW		 569 PUSHi(0);
570 else
571 RETPUSHUNDEF;
572 RETURN;
573}
574
575PP(pp_close)
576{
39644a26 577 dSP;
a0d0e21e 578 GV *gv;
5b468f54 579 IO *io;
1d603a67 580 MAGIC *mg;
a0d0e21e
LW		 581
582 if (MAXARG == 0)
3280af22 583 gv = PL_defoutgv;
a0d0e21e
LW		 584 else
585 gv = (GV*)POPs;
1d603a67 586
5b468f54
AMS		 587 if (gv && (io = GvIO(gv))
588 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
589 {
1d603a67 590 PUSHMARK(SP);
5b468f54 591 XPUSHs(SvTIED_obj((SV*)io, mg));
1d603a67
GB		 592 PUTBACK;
593 ENTER;
864dbfa3 594 call_method("CLOSE", G_SCALAR);
1d603a67
GB		 595 LEAVE;
596 SPAGAIN;
597 RETURN;
598 }
a0d0e21e 599 EXTEND(SP, 1);
54310121 600 PUSHs(boolSV(do_close(gv, TRUE)));
a0d0e21e
LW		 601 RETURN;
602}
603
604PP(pp_pipe_op)
605{
a0d0e21e 606#ifdef HAS_PIPE
9cad6237 607 dSP;
a0d0e21e
LW		 608 GV *rgv;
609 GV *wgv;
610 register IO *rstio;
611 register IO *wstio;
612 int fd[2];
613
614 wgv = (GV*)POPs;
615 rgv = (GV*)POPs;
616
617 if (!rgv || !wgv)
618 goto badexit;
619
4633a7c4 620 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
cea2e8a9 621 DIE(aTHX_ PL_no_usym, "filehandle");
a0d0e21e
LW		 622 rstio = GvIOn(rgv);
623 wstio = GvIOn(wgv);
624
625 if (IoIFP(rstio))
626 do_close(rgv, FALSE);
627 if (IoIFP(wstio))
628 do_close(wgv, FALSE);
629
6ad3d225 630 if (PerlProc_pipe(fd) < 0)
a0d0e21e
LW		 631 goto badexit;
632
5a560d3a
IZ		 633 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
634 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
b5ac89c3 635 IoOFP(rstio) = IoIFP(rstio);
a0d0e21e 636 IoIFP(wstio) = IoOFP(wstio);
50952442
JH		 637 IoTYPE(rstio) = IoTYPE_RDONLY;
638 IoTYPE(wstio) = IoTYPE_WRONLY;
a0d0e21e
LW		 639
640 if (!IoIFP(rstio) || !IoOFP(wstio)) {
760ac839 641 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
6ad3d225 642 else PerlLIO_close(fd[0]);
760ac839 643 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
6ad3d225 644 else PerlLIO_close(fd[1]);
a0d0e21e
LW		 645 goto badexit;
646 }
4771b018
GS		 647#if defined(HAS_FCNTL) && defined(F_SETFD)
648 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
649 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
650#endif
a0d0e21e
LW		 651 RETPUSHYES;
652
653badexit:
654 RETPUSHUNDEF;
655#else
cea2e8a9 656 DIE(aTHX_ PL_no_func, "pipe");
a0d0e21e
LW		 657#endif
658}
659
660PP(pp_fileno)
661{
39644a26 662 dSP; dTARGET;
a0d0e21e
LW		 663 GV *gv;
664 IO *io;
760ac839 665 PerlIO *fp;
4592e6ca
NIS		 666 MAGIC *mg;
667
a0d0e21e
LW		 668 if (MAXARG < 1)
669 RETPUSHUNDEF;
670 gv = (GV*)POPs;
4592e6ca 671
5b468f54
AMS		 672 if (gv && (io = GvIO(gv))
673 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
674 {
4592e6ca 675 PUSHMARK(SP);
5b468f54 676 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 677 PUTBACK;
678 ENTER;
864dbfa3 679 call_method("FILENO", G_SCALAR);
4592e6ca
NIS		 680 LEAVE;
681 SPAGAIN;
682 RETURN;
683 }
684
c289d2f7
JH		 685 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
686 /* Can't do this because people seem to do things like
687 defined(fileno($foo)) to check whether $foo is a valid fh.
688 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
689 report_evil_fh(gv, io, PL_op->op_type);
690 */
a0d0e21e 691 RETPUSHUNDEF;
c289d2f7
JH		 692 }
693
760ac839 694 PUSHi(PerlIO_fileno(fp));
a0d0e21e
LW		 695 RETURN;
696}
697
698PP(pp_umask)
699{
39644a26 700 dSP; dTARGET;
d7e492a4 701#ifdef HAS_UMASK
761237fe 702 Mode_t anum;
a0d0e21e 703
a0d0e21e 704 if (MAXARG < 1) {
6ad3d225
GS		 705 anum = PerlLIO_umask(0);
706 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 707 }
708 else
6ad3d225 709 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 710 TAINT_PROPER("umask");
711 XPUSHi(anum);
712#else
eec2d3df
GS		 713 /* Only DIE if trying to restrict permissions on `user' (self).
714 * Otherwise it's harmless and more useful to just return undef
715 * since 'group' and 'other' concepts probably don't exist here. */
716 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 717 DIE(aTHX_ "umask not implemented");
6b88bc9c 718 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 719#endif
720 RETURN;
721}
722
723PP(pp_binmode)
724{
39644a26 725 dSP;
a0d0e21e
LW		 726 GV *gv;
727 IO *io;
760ac839 728 PerlIO *fp;
4592e6ca 729 MAGIC *mg;
16fe6d59 730 SV *discp = Nullsv;
a0d0e21e
LW		 731
732 if (MAXARG < 1)
733 RETPUSHUNDEF;
60382766 734 if (MAXARG > 1) {
16fe6d59 735 discp = POPs;
60382766 736 }
a0d0e21e 737
301e8125 738 gv = (GV*)POPs;
4592e6ca 739
5b468f54
AMS		 740 if (gv && (io = GvIO(gv))
741 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
742 {
4592e6ca 743 PUSHMARK(SP);
5b468f54 744 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 745 if (discp)
746 XPUSHs(discp);
4592e6ca
NIS		 747 PUTBACK;
748 ENTER;
864dbfa3 749 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 750 LEAVE;
751 SPAGAIN;
752 RETURN;
753 }
a0d0e21e
LW		 754
755 EXTEND(SP, 1);
50f846a7 756 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 757 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
758 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 759 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 760 RETPUSHUNDEF;
761 }
a0d0e21e 762
40d98b49 763 PUTBACK;
60382766 764 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 765 (discp) ? SvPV_nolen(discp) : Nullch)) {
406c4b1e
JH		 766 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
767 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
768 mode_from_discipline(discp),
769 (discp) ? SvPV_nolen(discp) : Nullch)) {
770 SPAGAIN;
771 RETPUSHUNDEF;
772 }
773 }
40d98b49 774 SPAGAIN;
a0d0e21e 775 RETPUSHYES;
40d98b49
JH		 776 }
777 else {
778 SPAGAIN;
a0d0e21e 779 RETPUSHUNDEF;
40d98b49 780 }
a0d0e21e
LW		 781}
782
783PP(pp_tie)
784{
39644a26 785 dSP;
e336de0d 786 dMARK;
a0d0e21e
LW		 787 SV *varsv;
788 HV* stash;
789 GV *gv;
a0d0e21e 790 SV *sv;
3280af22 791 I32 markoff = MARK - PL_stack_base;
a0d0e21e 792 char *methname;
14befaf4 793 int how = PERL_MAGIC_tied;
e336de0d 794 U32 items;
a0d0e21e 795
e336de0d 796 varsv = *++MARK;
6b05c17a
NIS		 797 switch(SvTYPE(varsv)) {
798 case SVt_PVHV:
799 methname = "TIEHASH";
03c6e78a 800 HvEITER((HV *)varsv) = Null(HE *);
6b05c17a
NIS		 801 break;
802 case SVt_PVAV:
803 methname = "TIEARRAY";
804 break;
805 case SVt_PVGV:
7fb37951
AMS		 806#ifdef GV_UNIQUE_CHECK
807 if (GvUNIQUE((GV*)varsv)) {
808 Perl_croak(aTHX_ "Attempt to tie unique GV");
5bd07a3d
DM		 809 }
810#endif
6b05c17a 811 methname = "TIEHANDLE";
14befaf4 812 how = PERL_MAGIC_tiedscalar;
5b468f54
AMS		 813 /* For tied filehandles, we apply tiedscalar magic to the IO
814 slot of the GP rather than the GV itself. AMS 20010812 */
815 if (!GvIOp(varsv))
816 GvIOp(varsv) = newIO();
817 varsv = (SV *)GvIOp(varsv);
6b05c17a
NIS		 818 break;
819 default:
820 methname = "TIESCALAR";
14befaf4 821 how = PERL_MAGIC_tiedscalar;
6b05c17a
NIS		 822 break;
823 }
e336de0d
GS		 824 items = SP - MARK++;
825 if (sv_isobject(*MARK)) {
6b05c17a 826 ENTER;
e788e7d3 827 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 828 PUSHMARK(SP);
eb160463 829 EXTEND(SP,(I32)items);
e336de0d
GS		 830 while (items--)
831 PUSHs(*MARK++);
832 PUTBACK;
864dbfa3 833 call_method(methname, G_SCALAR);
301e8125 834 }
6b05c17a 835 else {
864dbfa3 836 /* Not clear why we don't call call_method here too.
6b05c17a
NIS		 837 * perhaps to get different error message ?
838 */
e336de0d 839 stash = gv_stashsv(*MARK, FALSE);
6b05c17a 840 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
c293eb2b
NC		 841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
842 methname, *MARK);
6b05c17a
NIS		 843 }
844 ENTER;
e788e7d3 845 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 846 PUSHMARK(SP);
eb160463 847 EXTEND(SP,(I32)items);
e336de0d
GS		 848 while (items--)
849 PUSHs(*MARK++);
850 PUTBACK;
864dbfa3 851 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 852 }
a0d0e21e
LW		 853 SPAGAIN;
854
855 sv = TOPs;
d3acc0f7 856 POPSTACK;
a0d0e21e 857 if (sv_isobject(sv)) {
33c27489 858 sv_unmagic(varsv, how);
ae21d580 859 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 860 if (varsv == SvRV(sv) &&
d87ebaca
YST		 861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 863 Perl_croak(aTHX_
864 "Self-ties of arrays and hashes are not supported");
d87ebaca 865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 866 }
867 LEAVE;
3280af22 868 SP = PL_stack_base + markoff;
a0d0e21e
LW		 869 PUSHs(sv);
870 RETURN;
871}
872
873PP(pp_untie)
874{
39644a26 875 dSP;
5b468f54 876 MAGIC *mg;
33c27489 877 SV *sv = POPs;
14befaf4
DM		 878 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
879 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
55497cff 880
5b468f54
AMS		 881 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
882 RETPUSHYES;
883
d87861d8
PP		 884 if ((mg = SvTIED_mg(sv, how))) {
885 SV *obj = SvRV(SvTIED_obj(sv, mg));
a29a5827
NIS		 886 GV *gv;
887 CV *cv = NULL;
fa2b88e0
JS		 888 if (obj) {
889 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
890 isGV(gv) && (cv = GvCV(gv))) {
891 PUSHMARK(SP);
892 XPUSHs(SvTIED_obj((SV*)gv, mg));
893 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
894 PUTBACK;
895 ENTER;
896 call_sv((SV *)cv, G_VOID);
897 LEAVE;
898 SPAGAIN;
899 }
900 else if (ckWARN(WARN_UNTIE)) {
901 if (mg && SvREFCNT(obj) > 1)
9014280d 902 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
fa2b88e0
JS		 903 "untie attempted while %"UVuf" inner references still exist",
904 (UV)SvREFCNT(obj) - 1 ) ;
905 }
cbdc8872 906 }
907 }
06d028cb 908 sv_unmagic(sv, how) ;
55497cff 909 RETPUSHYES;
a0d0e21e
LW		 910}
911
c07a80fd 912PP(pp_tied)
913{
39644a26 914 dSP;
5b468f54 915 MAGIC *mg;
33c27489 916 SV *sv = POPs;
14befaf4
DM		 917 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
918 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
5b468f54
AMS		 919
920 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
921 RETPUSHUNDEF;
c07a80fd 922
155aba94 923 if ((mg = SvTIED_mg(sv, how))) {
33c27489
GS		 924 SV *osv = SvTIED_obj(sv, mg);
925 if (osv == mg->mg_obj)
926 osv = sv_mortalcopy(osv);
927 PUSHs(osv);
928 RETURN;
c07a80fd 929 }
c07a80fd 930 RETPUSHUNDEF;
931}
932
a0d0e21e
LW		 933PP(pp_dbmopen)
934{
39644a26 935 dSP;
a0d0e21e
LW		 936 HV *hv;
937 dPOPPOPssrl;
938 HV* stash;
939 GV *gv;
a0d0e21e
LW		 940 SV *sv;
941
942 hv = (HV*)POPs;
943
3280af22 944 sv = sv_mortalcopy(&PL_sv_no);
a0d0e21e
LW		 945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
8ebc5c01 947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
a0d0e21e 948 PUTBACK;
864dbfa3 949 require_pv("AnyDBM_File.pm");
a0d0e21e 950 SPAGAIN;
8ebc5c01 951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
cea2e8a9 952 DIE(aTHX_ "No dbm on this machine");
a0d0e21e
LW		 953 }
954
57d3b86d 955 ENTER;
924508f0 956 PUSHMARK(SP);
6b05c17a 957
924508f0 958 EXTEND(SP, 5);
a0d0e21e
LW		 959 PUSHs(sv);
960 PUSHs(left);
961 if (SvIV(right))
b448e4fe 962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
a0d0e21e 963 else
b448e4fe 964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
a0d0e21e 965 PUSHs(right);
57d3b86d 966 PUTBACK;
864dbfa3 967 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 968 SPAGAIN;
969
970 if (!sv_isobject(TOPs)) {
924508f0
GS		 971 SP--;
972 PUSHMARK(SP);
a0d0e21e
LW		 973 PUSHs(sv);
974 PUSHs(left);
b448e4fe 975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
a0d0e21e 976 PUSHs(right);
a0d0e21e 977 PUTBACK;
864dbfa3 978 call_sv((SV*)GvCV(gv), G_SCALAR);
a0d0e21e
LW		 979 SPAGAIN;
980 }
981
6b05c17a 982 if (sv_isobject(TOPs)) {
14befaf4
DM		 983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
6b05c17a 985 }
a0d0e21e
LW		 986 LEAVE;
987 RETURN;
988}
989
990PP(pp_dbmclose)
991{
cea2e8a9 992 return pp_untie();
a0d0e21e
LW		 993}
994
995PP(pp_sselect)
996{
a0d0e21e 997#ifdef HAS_SELECT
9cad6237 998 dSP; dTARGET;
a0d0e21e
LW		 999 register I32 i;
1000 register I32 j;
1001 register char *s;
1002 register SV *sv;
65202027 1003 NV value;
a0d0e21e
LW		 1004 I32 maxlen = 0;
1005 I32 nfound;
1006 struct timeval timebuf;
1007 struct timeval *tbuf = &timebuf;
1008 I32 growsize;
1009 char *fd_sets[4];
2d8e6c8d 1010 STRLEN n_a;
a0d0e21e
LW		 1011#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1012 I32 masksize;
1013 I32 offset;
1014 I32 k;
1015
1016# if BYTEORDER & 0xf0000
1017# define ORDERBYTE (0x88888888 - BYTEORDER)
1018# else
1019# define ORDERBYTE (0x4444 - BYTEORDER)
1020# endif
1021
1022#endif
1023
1024 SP -= 4;
1025 for (i = 1; i <= 3; i++) {
1026 if (!SvPOK(SP[i]))
1027 continue;
1028 j = SvCUR(SP[i]);
1029 if (maxlen < j)
1030 maxlen = j;
1031 }
1032
5ff3f7a4 1033/* little endians can use vecs directly */
e366b469 1034#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1035# ifdef NFDBITS
a0d0e21e 1036
5ff3f7a4
GS		 1037# ifndef NBBY
1038# define NBBY 8
1039# endif
a0d0e21e
LW		 1040
1041 masksize = NFDBITS / NBBY;
5ff3f7a4 1042# else
a0d0e21e 1043 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1044# endif
a0d0e21e
LW		 1045 Zero(&fd_sets[0], 4, char*);
1046#endif
1047
482ba07e
JH		 1048# if SELECT_MIN_BITS == 1
1049 growsize = sizeof(fd_set);
1050# else
1051# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1052# undef SELECT_MIN_BITS
1053# define SELECT_MIN_BITS __FD_SETSIZE
1054# endif
e366b469
PG		 1055 /* If SELECT_MIN_BITS is greater than one we most probably will want
1056 * to align the sizes with SELECT_MIN_BITS/8 because for example
1057 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1058 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1059 * on (sets/tests/clears bits) is 32 bits. */
1060 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1061# endif
1062
a0d0e21e
LW		 1063 sv = SP[4];
1064 if (SvOK(sv)) {
1065 value = SvNV(sv);
1066 if (value < 0.0)
1067 value = 0.0;
1068 timebuf.tv_sec = (long)value;
65202027 1069 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1070 timebuf.tv_usec = (long)(value * 1000000.0);
1071 }
1072 else
1073 tbuf = Null(struct timeval*);
1074
1075 for (i = 1; i <= 3; i++) {
1076 sv = SP[i];
1077 if (!SvOK(sv)) {
1078 fd_sets[i] = 0;
1079 continue;
1080 }
1081 else if (!SvPOK(sv))
2d8e6c8d 1082 SvPV_force(sv,n_a); /* force string conversion */
a0d0e21e
LW		 1083 j = SvLEN(sv);
1084 if (j < growsize) {
1085 Sv_Grow(sv, growsize);
a0d0e21e 1086 }
c07a80fd 1087 j = SvCUR(sv);
1088 s = SvPVX(sv) + j;
1089 while (++j <= growsize) {
1090 *s++ = '\0';
1091 }
1092
a0d0e21e
LW		 1093#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1094 s = SvPVX(sv);
1095 New(403, fd_sets[i], growsize, char);
1096 for (offset = 0; offset < growsize; offset += masksize) {
1097 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1098 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1099 }
1100#else
1101 fd_sets[i] = SvPVX(sv);
1102#endif
1103 }
1104
fd4f854d
NC		 1105#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1106 /* Can't make just the (void*) conditional because that would be
1107 * cpp #if within cpp macro, and not all compilers like that. */
1108 nfound = PerlSock_select(
1109 maxlen * 8,
1110 (Select_fd_set_t) fd_sets[1],
1111 (Select_fd_set_t) fd_sets[2],
1112 (Select_fd_set_t) fd_sets[3],
1113 (void*) tbuf); /* Workaround for compiler bug. */
1114#else
6ad3d225 1115 nfound = PerlSock_select(
a0d0e21e
LW		 1116 maxlen * 8,
1117 (Select_fd_set_t) fd_sets[1],
1118 (Select_fd_set_t) fd_sets[2],
1119 (Select_fd_set_t) fd_sets[3],
1120 tbuf);
fd4f854d 1121#endif
a0d0e21e
LW		 1122 for (i = 1; i <= 3; i++) {
1123 if (fd_sets[i]) {
1124 sv = SP[i];
1125#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1126 s = SvPVX(sv);
1127 for (offset = 0; offset < growsize; offset += masksize) {
1128 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1129 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1130 }
1131 Safefree(fd_sets[i]);
1132#endif
1133 SvSETMAGIC(sv);
1134 }
1135 }
1136
1137 PUSHi(nfound);
1138 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1139 value = (NV)(timebuf.tv_sec) +
1140 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1141 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1142 sv_setnv(sv, value);
1143 }
1144 RETURN;
1145#else
cea2e8a9 1146 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1147#endif
1148}
1149
4633a7c4 1150void
864dbfa3 1151Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1152{
1153 if (gv)
1154 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1155 if (PL_defoutgv)
1156 SvREFCNT_dec(PL_defoutgv);
1157 PL_defoutgv = gv;
4633a7c4
LW		 1158}
1159
a0d0e21e
LW		 1160PP(pp_select)
1161{
39644a26 1162 dSP; dTARGET;
4633a7c4
LW		 1163 GV *newdefout, *egv;
1164 HV *hv;
1165
533c011a 1166 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1167
3280af22 1168 egv = GvEGV(PL_defoutgv);
4633a7c4 1169 if (!egv)
3280af22 1170 egv = PL_defoutgv;
4633a7c4
LW		 1171 hv = GvSTASH(egv);
1172 if (! hv)
3280af22 1173 XPUSHs(&PL_sv_undef);
4633a7c4 1174 else {
cbdc8872 1175 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1176 if (gvp && *gvp == egv) {
f7aaccc2 1177 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1178 XPUSHTARG;
1179 }
1180 else {
1181 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1182 }
4633a7c4
LW		 1183 }
1184
1185 if (newdefout) {
ded8aa31
GS		 1186 if (!GvIO(newdefout))
1187 gv_IOadd(newdefout);
4633a7c4
LW		 1188 setdefout(newdefout);
1189 }
1190
a0d0e21e
LW		 1191 RETURN;
1192}
1193
1194PP(pp_getc)
1195{
39644a26 1196 dSP; dTARGET;
a0d0e21e 1197 GV *gv;
90133b69 1198 IO *io = NULL;
2ae324a7 1199 MAGIC *mg;
a0d0e21e 1200
32da55ab 1201 if (MAXARG == 0)
3280af22 1202 gv = PL_stdingv;
a0d0e21e
LW		 1203 else
1204 gv = (GV*)POPs;
2ae324a7 1205
5b468f54
AMS		 1206 if (gv && (io = GvIO(gv))
1207 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1208 {
54310121 1209 I32 gimme = GIMME_V;
2ae324a7 1210 PUSHMARK(SP);
5b468f54 1211 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1212 PUTBACK;
1213 ENTER;
864dbfa3 1214 call_method("GETC", gimme);
2ae324a7 1215 LEAVE;
1216 SPAGAIN;
54310121 1217 if (gimme == G_SCALAR)
1218 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1219 RETURN;
1220 }
90133b69 1221 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1222 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1223 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1224 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1225 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1226 RETPUSHUNDEF;
90133b69 1227 }
bbce6d69 1228 TAINT;
a0d0e21e 1229 sv_setpv(TARG, " ");
9bc64814 1230 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1231 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1232 /* Find out how many bytes the char needs */
1233 Size_t len = UTF8SKIP(SvPVX(TARG));
1234 if (len > 1) {
1235 SvGROW(TARG,len+1);
1236 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1237 SvCUR_set(TARG,1+len);
1238 }
1239 SvUTF8_on(TARG);
1240 }
a0d0e21e
LW		 1241 PUSHTARG;
1242 RETURN;
1243}
1244
1245PP(pp_read)
1246{
cea2e8a9 1247 return pp_sysread();
a0d0e21e
LW		 1248}
1249
76e3520e 1250STATIC OP *
cea2e8a9 1251S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1252{
c09156bb 1253 register PERL_CONTEXT *cx;
54310121 1254 I32 gimme = GIMME_V;
a0d0e21e
LW		 1255
1256 ENTER;
1257 SAVETMPS;
1258
1259 push_return(retop);
146174a9 1260 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1261 PUSHFORMAT(cx);
9755d405 1262 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1263
4633a7c4 1264 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1265 return CvSTART(cv);
1266}
1267
1268PP(pp_enterwrite)
1269{
39644a26 1270 dSP;
a0d0e21e
LW		 1271 register GV *gv;
1272 register IO *io;
1273 GV *fgv;
1274 CV *cv;
1275
1276 if (MAXARG == 0)
3280af22 1277 gv = PL_defoutgv;
a0d0e21e
LW		 1278 else {
1279 gv = (GV*)POPs;
1280 if (!gv)
3280af22 1281 gv = PL_defoutgv;
a0d0e21e
LW		 1282 }
1283 EXTEND(SP, 1);
1284 io = GvIO(gv);
1285 if (!io) {
1286 RETPUSHNO;
1287 }
1288 if (IoFMT_GV(io))
1289 fgv = IoFMT_GV(io);
1290 else
1291 fgv = gv;
1292
1293 cv = GvFORM(fgv);
a0d0e21e 1294 if (!cv) {
2dd78f96 1295 char *name = NULL;
a0d0e21e 1296 if (fgv) {
748a9306 1297 SV *tmpsv = sv_newmortal();
43693395 1298 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1299 name = SvPV_nolen(tmpsv);
a0d0e21e 1300 }
2dd78f96
JH		 1301 if (name && *name)
1302 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1303 DIE(aTHX_ "Not a format reference");
a0d0e21e 1304 }
44a8e56a 1305 if (CvCLONE(cv))
1306 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1307
44a8e56a 1308 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1309 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1310}
1311
1312PP(pp_leavewrite)
1313{
39644a26 1314 dSP;
a0d0e21e
LW		 1315 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1316 register IO *io = GvIOp(gv);
760ac839
LW		 1317 PerlIO *ofp = IoOFP(io);
1318 PerlIO *fp;
a0d0e21e
LW		 1319 SV **newsp;
1320 I32 gimme;
c09156bb 1321 register PERL_CONTEXT *cx;
a0d0e21e 1322
760ac839 1323 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1324 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1325 if (!io || !ofp)
1326 goto forget_top;
3280af22
NIS		 1327 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1328 PL_formtarget != PL_toptarget)
a0d0e21e 1329 {
4633a7c4
LW		 1330 GV *fgv;
1331 CV *cv;
a0d0e21e
LW		 1332 if (!IoTOP_GV(io)) {
1333 GV *topgv;
46fc3d4c 1334 SV *topname;
a0d0e21e
LW		 1335
1336 if (!IoTOP_NAME(io)) {
1337 if (!IoFMT_NAME(io))
1338 IoFMT_NAME(io) = savepv(GvNAME(gv));
6a1959a6 1339 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
46fc3d4c 1340 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
748a9306 1341 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1342 !gv_fetchpv("top",FALSE,SVt_PVFM))
46fc3d4c 1343 IoTOP_NAME(io) = savepv(SvPVX(topname));
a0d0e21e
LW		 1344 else
1345 IoTOP_NAME(io) = savepv("top");
1346 }
1347 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1348 if (!topgv || !GvFORM(topgv)) {
1349 IoLINES_LEFT(io) = 100000000;
1350 goto forget_top;
1351 }
1352 IoTOP_GV(io) = topgv;
1353 }
748a9306
LW		 1354 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1355 I32 lines = IoLINES_LEFT(io);
3280af22 1356 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1357 if (lines <= 0) /* Yow, header didn't even fit!!! */
1358 goto forget_top;
748a9306
LW		 1359 while (lines-- > 0) {
1360 s = strchr(s, '\n');
1361 if (!s)
1362 break;
1363 s++;
1364 }
1365 if (s) {
d75029d0
NIS		 1366 STRLEN save = SvCUR(PL_formtarget);
1367 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1368 do_print(PL_formtarget, ofp);
1369 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1370 sv_chop(PL_formtarget, s);
1371 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1372 }
1373 }
a0d0e21e 1374 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1375 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1376 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1377 IoPAGE(io)++;
3280af22 1378 PL_formtarget = PL_toptarget;
748a9306 1379 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1380 fgv = IoTOP_GV(io);
1381 if (!fgv)
cea2e8a9 1382 DIE(aTHX_ "bad top format reference");
4633a7c4 1383 cv = GvFORM(fgv);
2dd78f96
JH		 1384 {
1385 char *name = NULL;
1386 if (!cv) {
1387 SV *sv = sv_newmortal();
1388 gv_efullname4(sv, fgv, Nullch, FALSE);
1389 name = SvPV_nolen(sv);
1390 }
1391 if (name && *name)
1392 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1393 /* why no:
1394 else
1395 DIE(aTHX_ "Undefined top format called");
1396 ?*/
4633a7c4 1397 }
44a8e56a 1398 if (CvCLONE(cv))
1399 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1400 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1401 }
1402
1403 forget_top:
3280af22 1404 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1405 POPFORMAT(cx);
1406 LEAVE;
1407
1408 fp = IoOFP(io);
1409 if (!fp) {
599cee73 1410 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1411 if (IoIFP(io))
1412 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1413 else if (ckWARN(WARN_CLOSED))
bc37a18f 1414 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1415 }
3280af22 1416 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1417 }
1418 else {
3280af22 1419 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1420 if (ckWARN(WARN_IO))
9014280d 1421 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1422 }
d75029d0 1423 if (!do_print(PL_formtarget, fp))
3280af22 1424 PUSHs(&PL_sv_no);
a0d0e21e 1425 else {
3280af22
NIS		 1426 FmLINES(PL_formtarget) = 0;
1427 SvCUR_set(PL_formtarget, 0);
1428 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1429 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1430 (void)PerlIO_flush(fp);
3280af22 1431 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1432 }
1433 }
9cbac4c7 1434 /* bad_ofp: */
3280af22 1435 PL_formtarget = PL_bodytarget;
a0d0e21e
LW		 1436 PUTBACK;
1437 return pop_return();
1438}
1439
1440PP(pp_prtf)
1441{
39644a26 1442 dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1443 GV *gv;
1444 IO *io;
760ac839 1445 PerlIO *fp;
26db47c4 1446 SV *sv;
46fc3d4c 1447 MAGIC *mg;
a0d0e21e 1448
533c011a 1449 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1450 gv = (GV*)*++MARK;
1451 else
3280af22 1452 gv = PL_defoutgv;
46fc3d4c 1453
5b468f54
AMS		 1454 if (gv && (io = GvIO(gv))
1455 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1456 {
46fc3d4c 1457 if (MARK == ORIGMARK) {
4352c267 1458 MEXTEND(SP, 1);
46fc3d4c 1459 ++MARK;
1460 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1461 ++SP;
1462 }
1463 PUSHMARK(MARK - 1);
5b468f54 1464 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1465 PUTBACK;
1466 ENTER;
864dbfa3 1467 call_method("PRINTF", G_SCALAR);
46fc3d4c 1468 LEAVE;
1469 SPAGAIN;
1470 MARK = ORIGMARK + 1;
1471 *MARK = *SP;
1472 SP = MARK;
1473 RETURN;
1474 }
1475
26db47c4 1476 sv = NEWSV(0,0);
a0d0e21e 1477 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1478 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1479 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 1480 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1481 goto just_say_no;
1482 }
1483 else if (!(fp = IoOFP(io))) {
599cee73 1484 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
5681398e
NC		 1485 if (IoIFP(io))
1486 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1487 else if (ckWARN(WARN_CLOSED))
bc37a18f 1488 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1489 }
5b7ea690 1490 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1491 goto just_say_no;
1492 }
1493 else {
1494 do_sprintf(sv, SP - MARK, MARK + 1);
1495 if (!do_print(sv, fp))
1496 goto just_say_no;
1497
1498 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1499 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1500 goto just_say_no;
1501 }
1502 SvREFCNT_dec(sv);
1503 SP = ORIGMARK;
3280af22 1504 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1505 RETURN;
1506
1507 just_say_no:
1508 SvREFCNT_dec(sv);
1509 SP = ORIGMARK;
3280af22 1510 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1511 RETURN;
1512}
1513
c07a80fd 1514PP(pp_sysopen)
1515{
39644a26 1516 dSP;
c07a80fd 1517 GV *gv;
c07a80fd 1518 SV *sv;
1519 char *tmps;
1520 STRLEN len;
1521 int mode, perm;
1522
1523 if (MAXARG > 3)
1524 perm = POPi;
1525 else
1526 perm = 0666;
1527 mode = POPi;
1528 sv = POPs;
1529 gv = (GV *)POPs;
1530
4592e6ca
NIS		 1531 /* Need TIEHANDLE method ? */
1532
c07a80fd 1533 tmps = SvPV(sv, len);
1534 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
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{
39644a26 1546 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
NIS		 1557 int fp_utf8;
1558 Size_t got = 0;
1559 Size_t wanted;
1d636c13 1560 bool charstart = FALSE;
87330c3c
JH		 1561 STRLEN charskip = 0;
1562 STRLEN skip = 0;
a0d0e21e
LW		 1563
1564 gv = (GV*)*++MARK;
5b468f54
AMS		 1565 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1566 && gv && (io = GvIO(gv))
1567 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1568 {
2ae324a7 1569 SV *sv;
1570
1571 PUSHMARK(MARK-1);
5b468f54 1572 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1573 ENTER;
864dbfa3 1574 call_method("READ", G_SCALAR);
2ae324a7 1575 LEAVE;
1576 SPAGAIN;
1577 sv = POPs;
1578 SP = ORIGMARK;
1579 PUSHs(sv);
1580 RETURN;
1581 }
1582
a0d0e21e
LW		 1583 if (!gv)
1584 goto say_undef;
748a9306 1585 bufsv = *++MARK;
ff68c719 1586 if (! SvOK(bufsv))
1587 sv_setpvn(bufsv, "", 0);
a0d0e21e 1588 length = SvIVx(*++MARK);
748a9306 1589 SETERRNO(0,0);
a0d0e21e
LW		 1590 if (MARK < SP)
1591 offset = SvIVx(*++MARK);
1592 else
1593 offset = 0;
1594 io = GvIO(gv);
b5fe5ca2
SR		 1595 if (!io || !IoIFP(io)) {
1596 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1597 report_evil_fh(gv, io, PL_op->op_type);
1598 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1599 goto say_undef;
b5fe5ca2 1600 }
0064a8a9 1601 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1602 buffer = SvPVutf8_force(bufsv, blen);
cd458e05 1603 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1604 SvUTF8_on(bufsv);
7d59b7e4
NIS		 1605 }
1606 else {
1607 buffer = SvPV_force(bufsv, blen);
1608 }
1609 if (length < 0)
1610 DIE(aTHX_ "Negative length");
eb5c063a 1611 wanted = length;
7d59b7e4 1612
d0965105
JH		 1613 charstart = TRUE;
1614 charskip = 0;
87330c3c 1615 skip = 0;
d0965105 1616
a0d0e21e 1617#ifdef HAS_SOCKET
533c011a 1618 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1619 char namebuf[MAXPATHLEN];
17a8c7ba 1620#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1621 bufsize = sizeof (struct sockaddr_in);
1622#else
46fc3d4c 1623 bufsize = sizeof namebuf;
490ab354 1624#endif
abf95952
IZ		 1625#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1626 if (bufsize >= 256)
1627 bufsize = 255;
1628#endif
eb160463 1629 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1630 /* 'offset' means 'flags' here */
eb5c063a 1631 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1632 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1633 if (count < 0)
a0d0e21e 1634 RETPUSHUNDEF;
4107cc59
OF		 1635#ifdef EPOC
1636 /* Bogus return without padding */
1637 bufsize = sizeof (struct sockaddr_in);
1638#endif
eb5c063a 1639 SvCUR_set(bufsv, count);
748a9306
LW		 1640 *SvEND(bufsv) = '\0';
1641 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1642 if (fp_utf8)
1643 SvUTF8_on(bufsv);
748a9306 1644 SvSETMAGIC(bufsv);
aac0dd9a 1645 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1646 if (!(IoFLAGS(io) & IOf_UNTAINT))
1647 SvTAINTED_on(bufsv);
a0d0e21e 1648 SP = ORIGMARK;
46fc3d4c 1649 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1650 PUSHs(TARG);
1651 RETURN;
1652 }
1653#else
911d147d 1654 if (PL_op->op_type == OP_RECV)
cea2e8a9 1655 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1656#endif
eb5c063a
NIS		 1657 if (DO_UTF8(bufsv)) {
1658 /* offset adjust in characters not bytes */
1659 blen = sv_len_utf8(bufsv);
7d59b7e4 1660 }
bbce6d69 1661 if (offset < 0) {
eb160463 1662 if (-offset > (int)blen)
cea2e8a9 1663 DIE(aTHX_ "Offset outside string");
bbce6d69 1664 offset += blen;
1665 }
eb5c063a
NIS		 1666 if (DO_UTF8(bufsv)) {
1667 /* convert offset-as-chars to offset-as-bytes */
1668 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1669 }
1670 more_bytes:
cd52b7b2 1671 bufsize = SvCUR(bufsv);
eb160463 1672 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
cd52b7b2 1673 if (offset > bufsize) { /* Zero any newly allocated space */
1674 Zero(buffer+bufsize, offset-bufsize, char);
1675 }
eb5c063a
NIS		 1676 buffer = buffer + offset;
1677
533c011a 1678 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1679#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1680 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1681 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1682 buffer, length, 0);
a7092146
GS		 1683 }
1684 else
1685#endif
1686 {
eb5c063a
NIS		 1687 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1688 buffer, length);
a7092146 1689 }
a0d0e21e
LW		 1690 }
1691 else
1692#ifdef HAS_SOCKET__bad_code_maybe
50952442 1693 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1694 char namebuf[MAXPATHLEN];
490ab354
JH		 1695#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1696 bufsize = sizeof (struct sockaddr_in);
1697#else
46fc3d4c 1698 bufsize = sizeof namebuf;
490ab354 1699#endif
eb5c063a 1700 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1701 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1702 }
1703 else
1704#endif
3b02c43c 1705 {
eb5c063a
NIS		 1706 count = PerlIO_read(IoIFP(io), buffer, length);
1707 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1708 if (count == 0 && PerlIO_error(IoIFP(io)))
1709 count = -1;
3b02c43c 1710 }
eb5c063a 1711 if (count < 0) {
a00b5bd3 1712 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
5681398e 1713 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1714 goto say_undef;
af8c498a 1715 }
eb5c063a 1716 SvCUR_set(bufsv, count+(buffer - SvPVX(bufsv)));
748a9306
LW		 1717 *SvEND(bufsv) = '\0';
1718 (void)SvPOK_only(bufsv);
0064a8a9 1719 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1720 /* Look at utf8 we got back and count the characters */
1721 char *bend = buffer + count;
1722 while (buffer < bend) {
d0965105
JH		 1723 if (charstart) {
1724 skip = UTF8SKIP(buffer);
1725 charskip = 0;
1726 }
1727 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1728 /* partial character - try for rest of it */
1729 length = skip - (bend-buffer);
1730 offset = bend - SvPVX(bufsv);
d0965105
JH		 1731 charstart = FALSE;
1732 charskip += count;
eb5c063a
NIS		 1733 goto more_bytes;
1734 }
1735 else {
1736 got++;
1737 buffer += skip;
d0965105
JH		 1738 charstart = TRUE;
1739 charskip = 0;
eb5c063a
NIS		 1740 }
1741 }
1742 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1743 provided amount read (count) was what was requested (length)
1744 */
1745 if (got < wanted && count == length) {
d0965105 1746 length = wanted - got;
eb5c063a
NIS		 1747 offset = bend - SvPVX(bufsv);
1748 goto more_bytes;
1749 }
1750 /* return value is character count */
1751 count = got;
1752 SvUTF8_on(bufsv);
1753 }
748a9306 1754 SvSETMAGIC(bufsv);
aac0dd9a 1755 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1756 if (!(IoFLAGS(io) & IOf_UNTAINT))
1757 SvTAINTED_on(bufsv);
a0d0e21e 1758 SP = ORIGMARK;
eb5c063a 1759 PUSHi(count);
a0d0e21e
LW		 1760 RETURN;
1761
1762 say_undef:
1763 SP = ORIGMARK;
1764 RETPUSHUNDEF;
1765}
1766
1767PP(pp_syswrite)
1768{
39644a26 1769 dSP;
092bebab
JH		 1770 int items = (SP - PL_stack_base) - TOPMARK;
1771 if (items == 2) {
9f089d78 1772 SV *sv;
092bebab 1773 EXTEND(SP, 1);
9f089d78
SB		 1774 sv = sv_2mortal(newSViv(sv_len(*SP)));
1775 PUSHs(sv);
092bebab
JH		 1776 PUTBACK;
1777 }
cea2e8a9 1778 return pp_send();
a0d0e21e
LW		 1779}
1780
1781PP(pp_send)
1782{
39644a26 1783 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1784 GV *gv;
1785 IO *io;
748a9306 1786 SV *bufsv;
a0d0e21e 1787 char *buffer;
8c99d73e
GS		 1788 Size_t length;
1789 SSize_t retval;
a0d0e21e 1790 STRLEN blen;
1d603a67 1791 MAGIC *mg;
a0d0e21e
LW		 1792
1793 gv = (GV*)*++MARK;
14befaf4 1794 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1795 && gv && (io = GvIO(gv))
1796 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1797 {
1d603a67
GB		 1798 SV *sv;
1799
1800 PUSHMARK(MARK-1);
5b468f54 1801 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1802 ENTER;
864dbfa3 1803 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1804 LEAVE;
1805 SPAGAIN;
1806 sv = POPs;
1807 SP = ORIGMARK;
1808 PUSHs(sv);
1809 RETURN;
1810 }
a0d0e21e
LW		 1811 if (!gv)
1812 goto say_undef;
748a9306 1813 bufsv = *++MARK;
8c99d73e 1814#if Size_t_size > IVSIZE
3c001241 1815 length = (Size_t)SvNVx(*++MARK);
146174a9 1816#else
3c001241 1817 length = (Size_t)SvIVx(*++MARK);
146174a9 1818#endif
3c001241 1819 if ((SSize_t)length < 0)
cea2e8a9 1820 DIE(aTHX_ "Negative length");
748a9306 1821 SETERRNO(0,0);
a0d0e21e
LW		 1822 io = GvIO(gv);
1823 if (!io || !IoIFP(io)) {
8c99d73e 1824 retval = -1;
bc37a18f
RG		 1825 if (ckWARN(WARN_CLOSED))
1826 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1827 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1828 goto say_undef;
1829 }
1830
1831 if (PerlIO_isutf8(IoIFP(io))) {
71410450
NC		 1832 if (!SvUTF8(bufsv)) {
1833 bufsv = sv_2mortal(newSVsv(bufsv));
1834 buffer = sv_2pvutf8(bufsv, &blen);
1835 } else
1836 buffer = SvPV(bufsv, blen);
a0d0e21e 1837 }
7d59b7e4 1838 else {
8f34e12f
JH		 1839 if (DO_UTF8(bufsv)) {
1840 /* Not modifying source SV, so making a temporary copy. */
1841 bufsv = sv_2mortal(newSVsv(bufsv));
1842 sv_utf8_downgrade(bufsv, FALSE);
1843 }
1844 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1845 }
1846
1847 if (PL_op->op_type == OP_SYSWRITE) {
1848 IV offset;
1849 if (DO_UTF8(bufsv)) {
1850 /* length and offset are in chars */
1851 blen = sv_len_utf8(bufsv);
1852 }
bbce6d69 1853 if (MARK < SP) {
a0d0e21e 1854 offset = SvIVx(*++MARK);
bbce6d69 1855 if (offset < 0) {
eb160463 1856 if (-offset > (IV)blen)
cea2e8a9 1857 DIE(aTHX_ "Offset outside string");
bbce6d69 1858 offset += blen;
eb160463 1859 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1860 DIE(aTHX_ "Offset outside string");
bbce6d69 1861 } else
a0d0e21e
LW		 1862 offset = 0;
1863 if (length > blen - offset)
1864 length = blen - offset;
7d59b7e4 1865 if (DO_UTF8(bufsv)) {
c8d31a35 1866 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1867 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1868 }
1869 else {
1870 buffer = buffer+offset;
1871 }
a7092146 1872#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1873 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1874 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1875 buffer, length, 0);
a7092146
GS		 1876 }
1877 else
1878#endif
1879 {
94e4c244 1880 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1881 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1882 buffer, length);
a7092146 1883 }
a0d0e21e
LW		 1884 }
1885#ifdef HAS_SOCKET
1886 else if (SP > MARK) {
1887 char *sockbuf;
1888 STRLEN mlen;
1889 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1890 /* length is really flags */
8c99d73e
GS		 1891 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1892 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1893 }
1894 else
7d59b7e4 1895 /* length is really flags */
8c99d73e 1896 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1897#else
1898 else
cea2e8a9 1899 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1900#endif
8c99d73e 1901 if (retval < 0)
a0d0e21e
LW		 1902 goto say_undef;
1903 SP = ORIGMARK;
f36eea10
JH		 1904 if (DO_UTF8(bufsv))
1905 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1906#if Size_t_size > IVSIZE
1907 PUSHn(retval);
1908#else
1909 PUSHi(retval);
1910#endif
a0d0e21e
LW		 1911 RETURN;
1912
1913 say_undef:
1914 SP = ORIGMARK;
1915 RETPUSHUNDEF;
1916}
1917
1918PP(pp_recv)
1919{
cea2e8a9 1920 return pp_sysread();
a0d0e21e
LW		 1921}
1922
1923PP(pp_eof)
1924{
39644a26 1925 dSP;
a0d0e21e 1926 GV *gv;
5b468f54 1927 IO *io;
4592e6ca 1928 MAGIC *mg;
a0d0e21e 1929
32da55ab 1930 if (MAXARG == 0) {
146174a9
CB		 1931 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1932 IO *io;
ed2c6b9b 1933 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1934 io = GvIO(gv);
1935 if (io && !IoIFP(io)) {
1936 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1937 IoLINES(io) = 0;
1938 IoFLAGS(io) &= ~IOf_START;
1939 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1940 sv_setpvn(GvSV(gv), "-", 1);
1941 SvSETMAGIC(GvSV(gv));
1942 }
1943 else if (!nextargv(gv))
1944 RETPUSHYES;
1945 }
1946 }
1947 else
1948 gv = PL_last_in_gv; /* eof */
1949 }
a0d0e21e 1950 else
146174a9 1951 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1952
5b468f54
AMS		 1953 if (gv && (io = GvIO(gv))
1954 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1955 {
4592e6ca 1956 PUSHMARK(SP);
5b468f54 1957 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1958 PUTBACK;
1959 ENTER;
864dbfa3 1960 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1961 LEAVE;
1962 SPAGAIN;
1963 RETURN;
1964 }
1965
54310121 1966 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 1967 RETURN;
1968}
1969
1970PP(pp_tell)
1971{
39644a26 1972 dSP; dTARGET;
301e8125 1973 GV *gv;
5b468f54 1974 IO *io;
4592e6ca 1975 MAGIC *mg;
a0d0e21e 1976
32da55ab 1977 if (MAXARG == 0)
3280af22 1978 gv = PL_last_in_gv;
a0d0e21e 1979 else
3280af22 1980 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 1981
5b468f54
AMS		 1982 if (gv && (io = GvIO(gv))
1983 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1984 {
4592e6ca 1985 PUSHMARK(SP);
5b468f54 1986 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1987 PUTBACK;
1988 ENTER;
864dbfa3 1989 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 1990 LEAVE;
1991 SPAGAIN;
1992 RETURN;
1993 }
1994
146174a9
CB		 1995#if LSEEKSIZE > IVSIZE
1996 PUSHn( do_tell(gv) );
1997#else
a0d0e21e 1998 PUSHi( do_tell(gv) );
146174a9 1999#endif
a0d0e21e
LW		 2000 RETURN;
2001}
2002
2003PP(pp_seek)
2004{
cea2e8a9 2005 return pp_sysseek();
137443ea 2006}
2007
2008PP(pp_sysseek)
2009{
39644a26 2010 dSP;
a0d0e21e 2011 GV *gv;
5b468f54 2012 IO *io;
a0d0e21e 2013 int whence = POPi;
146174a9
CB		 2014#if LSEEKSIZE > IVSIZE
2015 Off_t offset = (Off_t)SvNVx(POPs);
2016#else
d9b3e12d 2017 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2018#endif
4592e6ca 2019 MAGIC *mg;
a0d0e21e 2020
3280af22 2021 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2022
5b468f54
AMS		 2023 if (gv && (io = GvIO(gv))
2024 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2025 {
4592e6ca 2026 PUSHMARK(SP);
5b468f54 2027 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2028#if LSEEKSIZE > IVSIZE
2029 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2030#else
b448e4fe 2031 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2032#endif
b448e4fe 2033 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2034 PUTBACK;
2035 ENTER;
864dbfa3 2036 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2037 LEAVE;
2038 SPAGAIN;
2039 RETURN;
2040 }
2041
533c011a 2042 if (PL_op->op_type == OP_SEEK)
8903cb82 2043 PUSHs(boolSV(do_seek(gv, offset, whence)));
2044 else {
b448e4fe
JH		 2045 Off_t sought = do_sysseek(gv, offset, whence);
2046 if (sought < 0)
146174a9
CB		 2047 PUSHs(&PL_sv_undef);
2048 else {
b448e4fe 2049 SV* sv = sought ?
146174a9 2050#if LSEEKSIZE > IVSIZE
b448e4fe 2051 newSVnv((NV)sought)
146174a9 2052#else
b448e4fe 2053 newSViv(sought)
146174a9
CB		 2054#endif
2055 : newSVpvn(zero_but_true, ZBTLEN);
2056 PUSHs(sv_2mortal(sv));
2057 }
8903cb82 2058 }
a0d0e21e
LW		 2059 RETURN;
2060}
2061
2062PP(pp_truncate)
2063{
39644a26 2064 dSP;
8c99d73e
GS		 2065 /* There seems to be no consensus on the length type of truncate()
2066 * and ftruncate(), both off_t and size_t have supporters. In
2067 * general one would think that when using large files, off_t is
2068 * at least as wide as size_t, so using an off_t should be okay. */
2069 /* XXX Configure probe for the length type of *truncate() needed XXX */
2070 Off_t len;
a0d0e21e 2071
25342a55 2072#if Off_t_size > IVSIZE
8c99d73e
GS		 2073 len = (Off_t)POPn;
2074#else
2075 len = (Off_t)POPi;
2076#endif
2077 /* Checking for length < 0 is problematic as the type might or
301e8125 2078 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2079 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2080 SETERRNO(0,0);
5d94fbed 2081#if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
d05c1ba0
JH		 2082 {
2083 STRLEN n_a;
2084 int result = 1;
2085 GV *tmpgv;
fe1d0b35
JH		 2086 IO *io;
2087
d05c1ba0
JH		 2088 if (PL_op->op_flags & OPf_SPECIAL) {
2089 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2090
fe1d0b35
JH		 2091 do_ftruncate_gv:
2092 if (!GvIO(tmpgv))
2093 result = 0;
d05c1ba0 2094 else {
fe1d0b35
JH		 2095 PerlIO *fp;
2096 io = GvIOp(tmpgv);
2097 do_ftruncate_io:
2098 TAINT_PROPER("truncate");
2099 if (!(fp = IoIFP(io))) {
2100 result = 0;
2101 }
2102 else {
2103 PerlIO_flush(fp);
cbdc8872 2104#ifdef HAS_TRUNCATE
fe1d0b35 2105 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2106#else
fe1d0b35 2107 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2108#endif
fe1d0b35
JH		 2109 result = 0;
2110 }
d05c1ba0 2111 }
cbdc8872 2112 }
d05c1ba0
JH		 2113 else {
2114 SV *sv = POPs;
2115 char *name;
72f496dc 2116
d05c1ba0
JH		 2117 if (SvTYPE(sv) == SVt_PVGV) {
2118 tmpgv = (GV*)sv; /* *main::FRED for example */
fe1d0b35 2119 goto do_ftruncate_gv;
d05c1ba0
JH		 2120 }
2121 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2122 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
fe1d0b35
JH		 2123 goto do_ftruncate_gv;
2124 }
2125 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2126 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2127 goto do_ftruncate_io;
d05c1ba0 2128 }
1e422769 2129
d05c1ba0
JH		 2130 name = SvPV(sv, n_a);
2131 TAINT_PROPER("truncate");
cbdc8872 2132#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2133 if (truncate(name, len) < 0)
2134 result = 0;
cbdc8872 2135#else
d05c1ba0
JH		 2136 {
2137 int tmpfd;
2138
2139 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2140 result = 0;
d05c1ba0
JH		 2141 else {
2142 if (my_chsize(tmpfd, len) < 0)
2143 result = 0;
2144 PerlLIO_close(tmpfd);
2145 }
cbdc8872 2146 }
a0d0e21e 2147#endif
d05c1ba0 2148 }
a0d0e21e 2149
d05c1ba0
JH		 2150 if (result)
2151 RETPUSHYES;
2152 if (!errno)
5b7ea690 2153 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2154 RETPUSHUNDEF;
2155 }
a0d0e21e 2156#else
cea2e8a9 2157 DIE(aTHX_ "truncate not implemented");
a0d0e21e
LW		 2158#endif
2159}
2160
2161PP(pp_fcntl)
2162{
cea2e8a9 2163 return pp_ioctl();
a0d0e21e
LW		 2164}
2165
2166PP(pp_ioctl)
2167{
39644a26 2168 dSP; dTARGET;
748a9306 2169 SV *argsv = POPs;
3bb7c1b4 2170 unsigned int func = POPu;
533c011a 2171 int optype = PL_op->op_type;
a0d0e21e 2172 char *s;
324aa91a 2173 IV retval;
a0d0e21e 2174 GV *gv = (GV*)POPs;
c289d2f7 2175 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2176
748a9306 2177 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2178 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2179 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2180 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2181 RETPUSHUNDEF;
2182 }
2183
748a9306 2184 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2185 STRLEN len;
324aa91a 2186 STRLEN need;
748a9306 2187 s = SvPV_force(argsv, len);
324aa91a
HF		 2188 need = IOCPARM_LEN(func);
2189 if (len < need) {
2190 s = Sv_Grow(argsv, need + 1);
2191 SvCUR_set(argsv, need);
a0d0e21e
LW		 2192 }
2193
748a9306 2194 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2195 }
2196 else {
748a9306 2197 retval = SvIV(argsv);
c529f79d 2198 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2199 }
2200
2201 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2202
2203 if (optype == OP_IOCTL)
2204#ifdef HAS_IOCTL
76e3520e 2205 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2206#else
cea2e8a9 2207 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2208#endif
2209 else
c214f4ad
WB		 2210#ifndef HAS_FCNTL
2211 DIE(aTHX_ "fcntl is not implemented");
2212#else
55497cff 2213#if defined(OS2) && defined(__EMX__)
760ac839 2214 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2215#else
760ac839 2216 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2217#endif
f7288ffb 2218#endif
a0d0e21e 2219
f7288ffb 2220#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2221 if (SvPOK(argsv)) {
2222 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2223 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2224 OP_NAME(PL_op));
748a9306
LW		 2225 s[SvCUR(argsv)] = 0; /* put our null back */
2226 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2227 }
2228
2229 if (retval == -1)
2230 RETPUSHUNDEF;
2231 if (retval != 0) {
2232 PUSHi(retval);
2233 }
2234 else {
8903cb82 2235 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2236 }
4808266b 2237#endif
c214f4ad 2238 RETURN;
a0d0e21e
LW		 2239}
2240
2241PP(pp_flock)
2242{
9cad6237 2243#ifdef FLOCK
39644a26 2244 dSP; dTARGET;
a0d0e21e
LW		 2245 I32 value;
2246 int argtype;
2247 GV *gv;
bc37a18f 2248 IO *io = NULL;
760ac839 2249 PerlIO *fp;
16d20bd9 2250
a0d0e21e 2251 argtype = POPi;
32da55ab 2252 if (MAXARG == 0)
3280af22 2253 gv = PL_last_in_gv;
a0d0e21e
LW		 2254 else
2255 gv = (GV*)POPs;
bc37a18f
RG		 2256 if (gv && (io = GvIO(gv)))
2257 fp = IoIFP(io);
2258 else {
a0d0e21e 2259 fp = Nullfp;
bc37a18f
RG		 2260 io = NULL;
2261 }
a0d0e21e 2262 if (fp) {
68dc0745 2263 (void)PerlIO_flush(fp);
76e3520e 2264 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2265 }
cb50131a 2266 else {
bc37a18f
RG		 2267 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2268 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2269 value = 0;
5b7ea690 2270 SETERRNO(EBADF,RMS_IFI);
cb50131a 2271 }
a0d0e21e
LW		 2272 PUSHi(value);
2273 RETURN;
2274#else
cea2e8a9 2275 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2276#endif
2277}
2278
2279/* Sockets. */
2280
2281PP(pp_socket)
2282{
a0d0e21e 2283#ifdef HAS_SOCKET
9cad6237 2284 dSP;
a0d0e21e
LW		 2285 GV *gv;
2286 register IO *io;
2287 int protocol = POPi;
2288 int type = POPi;
2289 int domain = POPi;
2290 int fd;
2291
2292 gv = (GV*)POPs;
c289d2f7 2293 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2294
c289d2f7
JH		 2295 if (!gv || !io) {
2296 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2297 report_evil_fh(gv, io, PL_op->op_type);
2298 if (IoIFP(io))
2299 do_close(gv, FALSE);
5b7ea690 2300 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2301 RETPUSHUNDEF;
2302 }
2303
57171420
BS		 2304 if (IoIFP(io))
2305 do_close(gv, FALSE);
2306
a0d0e21e 2307 TAINT_PROPER("socket");
6ad3d225 2308 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2309 if (fd < 0)
2310 RETPUSHUNDEF;
5a560d3a
IZ		 2311 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2312 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2313 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2314 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2315 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2316 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2317 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2318 RETPUSHUNDEF;
2319 }
8d2a6795
GS		 2320#if defined(HAS_FCNTL) && defined(F_SETFD)
2321 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2322#endif
a0d0e21e 2323
d5ff79b3
OF		 2324#ifdef EPOC
2325 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2326#endif
2327
a0d0e21e
LW		 2328 RETPUSHYES;
2329#else
cea2e8a9 2330 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2331#endif
2332}
2333
2334PP(pp_sockpair)
2335{
c95c94b1 2336#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2337 dSP;
a0d0e21e
LW		 2338 GV *gv1;
2339 GV *gv2;
2340 register IO *io1;
2341 register IO *io2;
2342 int protocol = POPi;
2343 int type = POPi;
2344 int domain = POPi;
2345 int fd[2];
2346
2347 gv2 = (GV*)POPs;
2348 gv1 = (GV*)POPs;
c289d2f7
JH		 2349 io1 = gv1 ? GvIOn(gv1) : NULL;
2350 io2 = gv2 ? GvIOn(gv2) : NULL;
2351 if (!gv1 || !gv2 || !io1 || !io2) {
2352 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2353 if (!gv1 || !io1)
2354 report_evil_fh(gv1, io1, PL_op->op_type);
2355 if (!gv2 || !io2)
2356 report_evil_fh(gv1, io2, PL_op->op_type);
2357 }
2358 if (IoIFP(io1))
2359 do_close(gv1, FALSE);
2360 if (IoIFP(io2))
2361 do_close(gv2, FALSE);
a0d0e21e 2362 RETPUSHUNDEF;
c289d2f7 2363 }
a0d0e21e 2364
dc0d0a5f
JH		 2365 if (IoIFP(io1))
2366 do_close(gv1, FALSE);
2367 if (IoIFP(io2))
2368 do_close(gv2, FALSE);
57171420 2369
a0d0e21e 2370 TAINT_PROPER("socketpair");
6ad3d225 2371 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2372 RETPUSHUNDEF;
5a560d3a
IZ		 2373 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2374 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2375 IoTYPE(io1) = IoTYPE_SOCKET;
5a560d3a
IZ		 2376 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2377 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2378 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2379 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2380 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2381 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2382 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2383 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2384 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2385 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2386 RETPUSHUNDEF;
2387 }
8d2a6795
GS		 2388#if defined(HAS_FCNTL) && defined(F_SETFD)
2389 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2390 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2391#endif
a0d0e21e
LW		 2392
2393 RETPUSHYES;
2394#else
cea2e8a9 2395 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2396#endif
2397}
2398
2399PP(pp_bind)
2400{
a0d0e21e 2401#ifdef HAS_SOCKET
9cad6237 2402 dSP;
eec2d3df 2403#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2404 extern void GETPRIVMODE();
2405 extern void GETUSERMODE();
eec2d3df 2406#endif
748a9306 2407 SV *addrsv = POPs;
a0d0e21e
LW		 2408 char *addr;
2409 GV *gv = (GV*)POPs;
2410 register IO *io = GvIOn(gv);
2411 STRLEN len;
eec2d3df
GS		 2412 int bind_ok = 0;
2413#ifdef MPE
2414 int mpeprivmode = 0;
2415#endif
a0d0e21e
LW		 2416
2417 if (!io || !IoIFP(io))
2418 goto nuts;
2419
748a9306 2420 addr = SvPV(addrsv, len);
a0d0e21e 2421 TAINT_PROPER("bind");
eec2d3df
GS		 2422#ifdef MPE /* Deal with MPE bind() peculiarities */
2423 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2424 /* The address *MUST* stupidly be zero. */
2425 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2426 /* PRIV mode is required to bind() to ports < 1024. */
2427 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2428 ((struct sockaddr_in *)addr)->sin_port > 0) {
2429 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2430 mpeprivmode = 1;
2431 }
2432 }
2433#endif /* MPE */
2434 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2435 (struct sockaddr *)addr, len) >= 0)
2436 bind_ok = 1;
2437
2438#ifdef MPE /* Switch back to USER mode */
2439 if (mpeprivmode)
2440 GETUSERMODE();
2441#endif /* MPE */
2442
2443 if (bind_ok)
a0d0e21e
LW		 2444 RETPUSHYES;
2445 else
2446 RETPUSHUNDEF;
2447
2448nuts:
599cee73 2449 if (ckWARN(WARN_CLOSED))
bc37a18f 2450 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2451 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2452 RETPUSHUNDEF;
2453#else
cea2e8a9 2454 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2455#endif
2456}
2457
2458PP(pp_connect)
2459{
a0d0e21e 2460#ifdef HAS_SOCKET
9cad6237 2461 dSP;
748a9306 2462 SV *addrsv = POPs;
a0d0e21e
LW		 2463 char *addr;
2464 GV *gv = (GV*)POPs;
2465 register IO *io = GvIOn(gv);
2466 STRLEN len;
2467
2468 if (!io || !IoIFP(io))
2469 goto nuts;
2470
748a9306 2471 addr = SvPV(addrsv, len);
a0d0e21e 2472 TAINT_PROPER("connect");
6ad3d225 2473 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2474 RETPUSHYES;
2475 else
2476 RETPUSHUNDEF;
2477
2478nuts:
599cee73 2479 if (ckWARN(WARN_CLOSED))
bc37a18f 2480 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2481 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2482 RETPUSHUNDEF;
2483#else
cea2e8a9 2484 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2485#endif
2486}
2487
2488PP(pp_listen)
2489{
a0d0e21e 2490#ifdef HAS_SOCKET
9cad6237 2491 dSP;
a0d0e21e
LW		 2492 int backlog = POPi;
2493 GV *gv = (GV*)POPs;
c289d2f7 2494 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2495
c289d2f7 2496 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2497 goto nuts;
2498
6ad3d225 2499 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2500 RETPUSHYES;
2501 else
2502 RETPUSHUNDEF;
2503
2504nuts:
599cee73 2505 if (ckWARN(WARN_CLOSED))
bc37a18f 2506 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2507 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2508 RETPUSHUNDEF;
2509#else
cea2e8a9 2510 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2511#endif
2512}
2513
2514PP(pp_accept)
2515{
a0d0e21e 2516#ifdef HAS_SOCKET
9cad6237 2517 dSP; dTARGET;
a0d0e21e
LW		 2518 GV *ngv;
2519 GV *ggv;
2520 register IO *nstio;
2521 register IO *gstio;
26776375
JH		 2522 char namebuf[MAXPATHLEN];
2523#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2524 Sock_size_t len = sizeof (struct sockaddr_in);
2525#else
2526 Sock_size_t len = sizeof namebuf;
2527#endif
a0d0e21e
LW		 2528 int fd;
2529
2530 ggv = (GV*)POPs;
2531 ngv = (GV*)POPs;
2532
2533 if (!ngv)
2534 goto badexit;
2535 if (!ggv)
2536 goto nuts;
2537
2538 gstio = GvIO(ggv);
2539 if (!gstio || !IoIFP(gstio))
2540 goto nuts;
2541
2542 nstio = GvIOn(ngv);
26776375 2543 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2544 if (fd < 0)
2545 goto badexit;
a70048fb
AB		 2546 if (IoIFP(nstio))
2547 do_close(ngv, FALSE);
5a560d3a
IZ		 2548 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2549 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2550 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2551 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2552 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2553 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2554 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2555 goto badexit;
2556 }
8d2a6795
GS		 2557#if defined(HAS_FCNTL) && defined(F_SETFD)
2558 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2559#endif
a0d0e21e 2560
ed79a026 2561#ifdef EPOC
26776375 2562 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2563 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2564#endif
bfd7eeef 2565#ifdef __SCO_VERSION__
26776375 2566 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
bfd7eeef 2567#endif
ed79a026 2568
26776375 2569 PUSHp(namebuf, len);
a0d0e21e
LW		 2570 RETURN;
2571
2572nuts:
599cee73 2573 if (ckWARN(WARN_CLOSED))
bc37a18f 2574 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
5b7ea690 2575 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2576
2577badexit:
2578 RETPUSHUNDEF;
2579
2580#else
cea2e8a9 2581 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2582#endif
2583}
2584
2585PP(pp_shutdown)
2586{
a0d0e21e 2587#ifdef HAS_SOCKET
9cad6237 2588 dSP; dTARGET;
a0d0e21e
LW		 2589 int how = POPi;
2590 GV *gv = (GV*)POPs;
2591 register IO *io = GvIOn(gv);
2592
2593 if (!io || !IoIFP(io))
2594 goto nuts;
2595
6ad3d225 2596 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2597 RETURN;
2598
2599nuts:
599cee73 2600 if (ckWARN(WARN_CLOSED))
bc37a18f 2601 report_evil_fh(gv, io, PL_op->op_type);
5b7ea690 2602 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2603 RETPUSHUNDEF;
2604#else
cea2e8a9 2605 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2606#endif
2607}
2608
2609PP(pp_gsockopt)
2610{
2611#ifdef HAS_SOCKET
cea2e8a9 2612 return pp_ssockopt();
a0d0e21e 2613#else
cea2e8a9 2614 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2615#endif
2616}
2617
2618PP(pp_ssockopt)
2619{
a0d0e21e 2620#ifdef HAS_SOCKET
9cad6237 2621 dSP;
533c011a 2622 int optype = PL_op->op_type;
a0d0e21e
LW		 2623 SV *sv;
2624 int fd;
2625 unsigned int optname;
2626 unsigned int lvl;
2627 GV *gv;
2628 register IO *io;
1e422769 2629 Sock_size_t len;
a0d0e21e
LW		 2630
2631 if (optype == OP_GSOCKOPT)
2632 sv = sv_2mortal(NEWSV(22, 257));
2633 else
2634 sv = POPs;
2635 optname = (unsigned int) POPi;
2636 lvl = (unsigned int) POPi;
2637
2638 gv = (GV*)POPs;
2639 io = GvIOn(gv);
2640 if (!io || !IoIFP(io))
2641 goto nuts;
2642
760ac839 2643 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2644 switch (optype) {
2645 case OP_GSOCKOPT:
748a9306 2646 SvGROW(sv, 257);
a0d0e21e 2647 (void)SvPOK_only(sv);
748a9306
LW		 2648 SvCUR_set(sv,256);
2649 *SvEND(sv) ='\0';
1e422769 2650 len = SvCUR(sv);
6ad3d225 2651 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2652 goto nuts2;
1e422769 2653 SvCUR_set(sv, len);
748a9306 2654 *SvEND(sv) ='\0';
a0d0e21e
LW		 2655 PUSHs(sv);
2656 break;
2657 case OP_SSOCKOPT: {
1e422769 2658 char *buf;
2659 int aint;
2660 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2661 STRLEN l;
2662 buf = SvPV(sv, l);
2663 len = l;
1e422769 2664 }
56ee1660 2665 else {
a0d0e21e
LW		 2666 aint = (int)SvIV(sv);
2667 buf = (char*)&aint;
2668 len = sizeof(int);
2669 }
6ad3d225 2670 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2671 goto nuts2;
3280af22 2672 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2673 }
2674 break;
2675 }
2676 RETURN;
2677
2678nuts:
599cee73 2679 if (ckWARN(WARN_CLOSED))
bc37a18f 2680 report_evil_fh(gv, io, optype);
5b7ea690 2681 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2682nuts2:
2683 RETPUSHUNDEF;
2684
2685#else
cea2e8a9 2686 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2687#endif
2688}
2689
2690PP(pp_getsockname)
2691{
2692#ifdef HAS_SOCKET
cea2e8a9 2693 return pp_getpeername();
a0d0e21e 2694#else
cea2e8a9 2695 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2696#endif
2697}
2698
2699PP(pp_getpeername)
2700{
a0d0e21e 2701#ifdef HAS_SOCKET
9cad6237 2702 dSP;
533c011a 2703 int optype = PL_op->op_type;
a0d0e21e
LW		 2704 SV *sv;
2705 int fd;
2706 GV *gv = (GV*)POPs;
2707 register IO *io = GvIOn(gv);
1e422769 2708 Sock_size_t len;
a0d0e21e
LW		 2709
2710 if (!io || !IoIFP(io))
2711 goto nuts;
2712
2713 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2714 (void)SvPOK_only(sv);
1e422769 2715 len = 256;
2716 SvCUR_set(sv, len);
748a9306 2717 *SvEND(sv) ='\0';
760ac839 2718 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2719 switch (optype) {
2720 case OP_GETSOCKNAME:
6ad3d225 2721 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2722 goto nuts2;
2723 break;
2724 case OP_GETPEERNAME:
6ad3d225 2725 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2726 goto nuts2;
490ab354
JH		 2727#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2728 {
2729 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";
2730 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2731 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2732 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2733 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2734 goto nuts2;
490ab354
JH		 2735 }
2736 }
2737#endif
a0d0e21e
LW		 2738 break;
2739 }
13826f2c
CS		 2740#ifdef BOGUS_GETNAME_RETURN
2741 /* Interactive Unix, getpeername() and getsockname()
2742 does not return valid namelen */
1e422769 2743 if (len == BOGUS_GETNAME_RETURN)
2744 len = sizeof(struct sockaddr);
13826f2c 2745#endif
1e422769 2746 SvCUR_set(sv, len);
748a9306 2747 *SvEND(sv) ='\0';
a0d0e21e
LW		 2748 PUSHs(sv);
2749 RETURN;
2750
2751nuts:
599cee73 2752 if (ckWARN(WARN_CLOSED))
bc37a18f 2753 report_evil_fh(gv, io, optype);
5b7ea690 2754 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2755nuts2:
2756 RETPUSHUNDEF;
2757
2758#else
cea2e8a9 2759 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2760#endif
2761}
2762
2763/* Stat calls. */
2764
2765PP(pp_lstat)
2766{
cea2e8a9 2767 return pp_stat();
a0d0e21e
LW		 2768}
2769
2770PP(pp_stat)
2771{
39644a26 2772 dSP;
2dd78f96 2773 GV *gv;
54310121 2774 I32 gimme;
a0d0e21e 2775 I32 max = 13;
2d8e6c8d 2776 STRLEN n_a;
a0d0e21e 2777
533c011a 2778 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2779 gv = cGVOP_gv;
8a4e5b40 2780 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2781 if (gv != PL_defgv) {
2782 if (ckWARN(WARN_IO))
9014280d 2783 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2784 "lstat() on filehandle %s", GvENAME(gv));
2785 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2786 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2787 }
2788
748a9306 2789 do_fstat:
2dd78f96 2790 if (gv != PL_defgv) {
3280af22 2791 PL_laststype = OP_STAT;
2dd78f96 2792 PL_statgv = gv;
3280af22 2793 sv_setpv(PL_statname, "");
2dd78f96
JH		 2794 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2795 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2796 }
9ddeeac9 2797 if (PL_laststatval < 0) {
2dd78f96
JH		 2798 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2799 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2800 max = 0;
9ddeeac9 2801 }
a0d0e21e
LW		 2802 }
2803 else {
748a9306
LW		 2804 SV* sv = POPs;
2805 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2806 gv = (GV*)sv;
748a9306
LW		 2807 goto do_fstat;
2808 }
2809 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2810 gv = (GV*)SvRV(sv);
5d3e98de 2811 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2812 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2813 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2814 goto do_fstat;
2815 }
2d8e6c8d 2816 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2817 PL_statgv = Nullgv;
a0d0e21e 2818#ifdef HAS_LSTAT
533c011a
NIS		 2819 PL_laststype = PL_op->op_type;
2820 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2821 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e
LW		 2822 else
2823#endif
2d8e6c8d 2824 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2825 if (PL_laststatval < 0) {
2d8e6c8d 2826 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2827 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2828 max = 0;
2829 }
2830 }
2831
54310121 2832 gimme = GIMME_V;
2833 if (gimme != G_ARRAY) {
2834 if (gimme != G_VOID)
2835 XPUSHs(boolSV(max));
2836 RETURN;
a0d0e21e
LW		 2837 }
2838 if (max) {
36477c24 2839 EXTEND(SP, max);
2840 EXTEND_MORTAL(max);
1ff81528
PL		 2841 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2842 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2843 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2844 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2845#if Uid_t_size > IVSIZE
2846 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2847#else
23dcd6c8 2848# if Uid_t_sign <= 0
1ff81528 2849 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2850# else
2851 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2852# endif
146174a9 2853#endif
301e8125 2854#if Gid_t_size > IVSIZE
146174a9
CB		 2855 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2856#else
23dcd6c8 2857# if Gid_t_sign <= 0
1ff81528 2858 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2859# else
2860 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2861# endif
146174a9 2862#endif
cbdc8872 2863#ifdef USE_STAT_RDEV
1ff81528 2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2865#else
79cb57f6 2866 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2867#endif
146174a9 2868#if Off_t_size > IVSIZE
4f4e7967 2869 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2870#else
1ff81528 2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2872#endif
cbdc8872 2873#ifdef BIG_TIME
172ae379
JH		 2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2876 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2877#else
1ff81528
PL		 2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2879 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2881#endif
a0d0e21e 2882#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2883 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2884 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2885#else
79cb57f6
GS		 2886 PUSHs(sv_2mortal(newSVpvn("", 0)));
2887 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2888#endif
2889 }
2890 RETURN;
2891}
2892
2893PP(pp_ftrread)
2894{
9cad6237 2895 I32 result;
2a3ff820 2896 dSP;
5ff3f7a4 2897#if defined(HAS_ACCESS) && defined(R_OK)
2d8e6c8d 2898 STRLEN n_a;
bfd7eeef
JH		 2899 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2900 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2901 if (result == 0)
2902 RETPUSHYES;
2903 if (result < 0)
2904 RETPUSHUNDEF;
2905 RETPUSHNO;
22865c03
GS		 2906 }
2907 else
cea2e8a9 2908 result = my_stat();
5ff3f7a4 2909#else
cea2e8a9 2910 result = my_stat();
5ff3f7a4 2911#endif
22865c03 2912 SPAGAIN;
a0d0e21e
LW		 2913 if (result < 0)
2914 RETPUSHUNDEF;
3280af22 2915 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2916 RETPUSHYES;
2917 RETPUSHNO;
2918}
2919
2920PP(pp_ftrwrite)
2921{
9cad6237 2922 I32 result;
2a3ff820 2923 dSP;
5ff3f7a4 2924#if defined(HAS_ACCESS) && defined(W_OK)
2d8e6c8d 2925 STRLEN n_a;
bfd7eeef
JH		 2926 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2927 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2928 if (result == 0)
2929 RETPUSHYES;
2930 if (result < 0)
2931 RETPUSHUNDEF;
2932 RETPUSHNO;
22865c03
GS		 2933 }
2934 else
cea2e8a9 2935 result = my_stat();
5ff3f7a4 2936#else
cea2e8a9 2937 result = my_stat();
5ff3f7a4 2938#endif
22865c03 2939 SPAGAIN;
a0d0e21e
LW		 2940 if (result < 0)
2941 RETPUSHUNDEF;
3280af22 2942 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2943 RETPUSHYES;
2944 RETPUSHNO;
2945}
2946
2947PP(pp_ftrexec)
2948{
9cad6237 2949 I32 result;
2a3ff820 2950 dSP;
5ff3f7a4 2951#if defined(HAS_ACCESS) && defined(X_OK)
2d8e6c8d 2952 STRLEN n_a;
bfd7eeef
JH		 2953 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2954 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2955 if (result == 0)
2956 RETPUSHYES;
2957 if (result < 0)
2958 RETPUSHUNDEF;
2959 RETPUSHNO;
22865c03
GS		 2960 }
2961 else
cea2e8a9 2962 result = my_stat();
5ff3f7a4 2963#else
cea2e8a9 2964 result = my_stat();
5ff3f7a4 2965#endif
22865c03 2966 SPAGAIN;
a0d0e21e
LW		 2967 if (result < 0)
2968 RETPUSHUNDEF;
3280af22 2969 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2970 RETPUSHYES;
2971 RETPUSHNO;
2972}
2973
2974PP(pp_fteread)
2975{
9cad6237 2976 I32 result;
2a3ff820 2977 dSP;
5ff3f7a4 2978#ifdef PERL_EFF_ACCESS_R_OK
2d8e6c8d 2979 STRLEN n_a;
bfd7eeef
JH		 2980 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2981 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2982 if (result == 0)
2983 RETPUSHYES;
2984 if (result < 0)
2985 RETPUSHUNDEF;
2986 RETPUSHNO;
22865c03
GS		 2987 }
2988 else
cea2e8a9 2989 result = my_stat();
5ff3f7a4 2990#else
cea2e8a9 2991 result = my_stat();
5ff3f7a4 2992#endif
22865c03 2993 SPAGAIN;
a0d0e21e
LW		 2994 if (result < 0)
2995 RETPUSHUNDEF;
3280af22 2996 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 2997 RETPUSHYES;
2998 RETPUSHNO;
2999}
3000
3001PP(pp_ftewrite)
3002{
9cad6237 3003 I32 result;
2a3ff820 3004 dSP;
5ff3f7a4 3005#ifdef PERL_EFF_ACCESS_W_OK
2d8e6c8d 3006 STRLEN n_a;
bfd7eeef
JH		 3007 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3008 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3009 if (result == 0)
3010 RETPUSHYES;
3011 if (result < 0)
3012 RETPUSHUNDEF;
3013 RETPUSHNO;
22865c03
GS		 3014 }
3015 else
cea2e8a9 3016 result = my_stat();
5ff3f7a4 3017#else
cea2e8a9 3018 result = my_stat();
5ff3f7a4 3019#endif
22865c03 3020 SPAGAIN;
a0d0e21e
LW		 3021 if (result < 0)
3022 RETPUSHUNDEF;
3280af22 3023 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3024 RETPUSHYES;
3025 RETPUSHNO;
3026}
3027
3028PP(pp_fteexec)
3029{
9cad6237 3030 I32 result;
2a3ff820 3031 dSP;
5ff3f7a4 3032#ifdef PERL_EFF_ACCESS_X_OK
2d8e6c8d 3033 STRLEN n_a;
bfd7eeef
JH		 3034 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3035 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3036 if (result == 0)
3037 RETPUSHYES;
3038 if (result < 0)
3039 RETPUSHUNDEF;
3040 RETPUSHNO;
22865c03
GS		 3041 }
3042 else
cea2e8a9 3043 result = my_stat();
5ff3f7a4 3044#else
cea2e8a9 3045 result = my_stat();
5ff3f7a4 3046#endif
22865c03 3047 SPAGAIN;
a0d0e21e
LW		 3048 if (result < 0)
3049 RETPUSHUNDEF;
3280af22 3050 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3051 RETPUSHYES;
3052 RETPUSHNO;
3053}
3054
3055PP(pp_ftis)
3056{
9cad6237 3057 I32 result = my_stat();
2a3ff820 3058 dSP;
a0d0e21e
LW		 3059 if (result < 0)
3060 RETPUSHUNDEF;
3061 RETPUSHYES;
3062}
3063
3064PP(pp_fteowned)
3065{
cea2e8a9 3066 return pp_ftrowned();
a0d0e21e
LW		 3067}
3068
3069PP(pp_ftrowned)
3070{
9cad6237 3071 I32 result = my_stat();
2a3ff820 3072 dSP;
a0d0e21e
LW		 3073 if (result < 0)
3074 RETPUSHUNDEF;
146174a9
CB		 3075 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3076 PL_euid : PL_uid) )
a0d0e21e
LW		 3077 RETPUSHYES;
3078 RETPUSHNO;
3079}
3080
3081PP(pp_ftzero)
3082{
9cad6237 3083 I32 result = my_stat();
2a3ff820 3084 dSP;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
146174a9 3087 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3088 RETPUSHYES;
3089 RETPUSHNO;
3090}
3091
3092PP(pp_ftsize)
3093{
9cad6237 3094 I32 result = my_stat();
2a3ff820 3095 dSP; dTARGET;
a0d0e21e
LW		 3096 if (result < 0)
3097 RETPUSHUNDEF;
146174a9
CB		 3098#if Off_t_size > IVSIZE
3099 PUSHn(PL_statcache.st_size);
3100#else
3280af22 3101 PUSHi(PL_statcache.st_size);
146174a9 3102#endif
a0d0e21e
LW		 3103 RETURN;
3104}
3105
3106PP(pp_ftmtime)
3107{
9cad6237 3108 I32 result = my_stat();
2a3ff820 3109 dSP; dTARGET;
a0d0e21e
LW		 3110 if (result < 0)
3111 RETPUSHUNDEF;
a9dd8465 3112 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3113 RETURN;
3114}
3115
3116PP(pp_ftatime)
3117{
9cad6237 3118 I32 result = my_stat();
2a3ff820 3119 dSP; dTARGET;
a0d0e21e
LW		 3120 if (result < 0)
3121 RETPUSHUNDEF;
a9dd8465 3122 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3123 RETURN;
3124}
3125
3126PP(pp_ftctime)
3127{
9cad6237 3128 I32 result = my_stat();
2a3ff820 3129 dSP; dTARGET;
a0d0e21e
LW		 3130 if (result < 0)
3131 RETPUSHUNDEF;
a9dd8465 3132 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3133 RETURN;
3134}
3135
3136PP(pp_ftsock)
3137{
9cad6237 3138 I32 result = my_stat();
2a3ff820 3139 dSP;
a0d0e21e
LW		 3140 if (result < 0)
3141 RETPUSHUNDEF;
3280af22 3142 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3143 RETPUSHYES;
3144 RETPUSHNO;
3145}
3146
3147PP(pp_ftchr)
3148{
9cad6237 3149 I32 result = my_stat();
2a3ff820 3150 dSP;
a0d0e21e
LW		 3151 if (result < 0)
3152 RETPUSHUNDEF;
3280af22 3153 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3154 RETPUSHYES;
3155 RETPUSHNO;
3156}
3157
3158PP(pp_ftblk)
3159{
9cad6237 3160 I32 result = my_stat();
2a3ff820 3161 dSP;
a0d0e21e
LW		 3162 if (result < 0)
3163 RETPUSHUNDEF;
3280af22 3164 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3165 RETPUSHYES;
3166 RETPUSHNO;
3167}
3168
3169PP(pp_ftfile)
3170{
9cad6237 3171 I32 result = my_stat();
2a3ff820 3172 dSP;
a0d0e21e
LW		 3173 if (result < 0)
3174 RETPUSHUNDEF;
3280af22 3175 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3176 RETPUSHYES;
3177 RETPUSHNO;
3178}
3179
3180PP(pp_ftdir)
3181{
9cad6237 3182 I32 result = my_stat();
2a3ff820 3183 dSP;
a0d0e21e
LW		 3184 if (result < 0)
3185 RETPUSHUNDEF;
3280af22 3186 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3187 RETPUSHYES;
3188 RETPUSHNO;
3189}
3190
3191PP(pp_ftpipe)
3192{
9cad6237 3193 I32 result = my_stat();
2a3ff820 3194 dSP;
a0d0e21e
LW		 3195 if (result < 0)
3196 RETPUSHUNDEF;
3280af22 3197 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3198 RETPUSHYES;
3199 RETPUSHNO;
3200}
3201
3202PP(pp_ftlink)
3203{
9cad6237 3204 I32 result = my_lstat();
2a3ff820 3205 dSP;
a0d0e21e
LW		 3206 if (result < 0)
3207 RETPUSHUNDEF;
3280af22 3208 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3209 RETPUSHYES;
3210 RETPUSHNO;
3211}
3212
3213PP(pp_ftsuid)
3214{
39644a26 3215 dSP;
a0d0e21e 3216#ifdef S_ISUID
cea2e8a9 3217 I32 result = my_stat();
a0d0e21e
LW		 3218 SPAGAIN;
3219 if (result < 0)
3220 RETPUSHUNDEF;
3280af22 3221 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3222 RETPUSHYES;
3223#endif
3224 RETPUSHNO;
3225}
3226
3227PP(pp_ftsgid)
3228{
39644a26 3229 dSP;
a0d0e21e 3230#ifdef S_ISGID
cea2e8a9 3231 I32 result = my_stat();
a0d0e21e
LW		 3232 SPAGAIN;
3233 if (result < 0)
3234 RETPUSHUNDEF;
3280af22 3235 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3236 RETPUSHYES;
3237#endif
3238 RETPUSHNO;
3239}
3240
3241PP(pp_ftsvtx)
3242{
39644a26 3243 dSP;
a0d0e21e 3244#ifdef S_ISVTX
cea2e8a9 3245 I32 result = my_stat();
a0d0e21e
LW		 3246 SPAGAIN;
3247 if (result < 0)
3248 RETPUSHUNDEF;
3280af22 3249 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3250 RETPUSHYES;
3251#endif
3252 RETPUSHNO;
3253}
3254
3255PP(pp_fttty)
3256{
39644a26 3257 dSP;
a0d0e21e
LW		 3258 int fd;
3259 GV *gv;
fb73857a 3260 char *tmps = Nullch;
2d8e6c8d 3261 STRLEN n_a;
fb73857a 3262
533c011a 3263 if (PL_op->op_flags & OPf_REF)
146174a9 3264 gv = cGVOP_gv;
fb73857a 3265 else if (isGV(TOPs))
3266 gv = (GV*)POPs;
3267 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3268 gv = (GV*)SvRV(POPs);
a0d0e21e 3269 else
2d8e6c8d 3270 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3271
a0d0e21e 3272 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3273 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3274 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3275 fd = atoi(tmps);
3276 else
3277 RETPUSHUNDEF;
6ad3d225 3278 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3279 RETPUSHYES;
3280 RETPUSHNO;
3281}
3282
16d20bd9
AD		 3283#if defined(atarist) /* this will work with atariST. Configure will
3284 make guesses for other systems. */
3285# define FILE_base(f) ((f)->_base)
3286# define FILE_ptr(f) ((f)->_ptr)
3287# define FILE_cnt(f) ((f)->_cnt)
3288# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3289#endif
3290
3291PP(pp_fttext)
3292{
39644a26 3293 dSP;
a0d0e21e
LW		 3294 I32 i;
3295 I32 len;
3296 I32 odd = 0;
3297 STDCHAR tbuf[512];
3298 register STDCHAR *s;
3299 register IO *io;
5f05dabc 3300 register SV *sv;
3301 GV *gv;
2d8e6c8d 3302 STRLEN n_a;
146174a9 3303 PerlIO *fp;
a0d0e21e 3304
533c011a 3305 if (PL_op->op_flags & OPf_REF)
146174a9 3306 gv = cGVOP_gv;
5f05dabc 3307 else if (isGV(TOPs))
3308 gv = (GV*)POPs;
3309 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3310 gv = (GV*)SvRV(POPs);
3311 else
3312 gv = Nullgv;
3313
3314 if (gv) {
a0d0e21e 3315 EXTEND(SP, 1);
3280af22
NIS		 3316 if (gv == PL_defgv) {
3317 if (PL_statgv)
3318 io = GvIO(PL_statgv);
a0d0e21e 3319 else {
3280af22 3320 sv = PL_statname;
a0d0e21e
LW		 3321 goto really_filename;
3322 }
3323 }
3324 else {
3280af22
NIS		 3325 PL_statgv = gv;
3326 PL_laststatval = -1;
3327 sv_setpv(PL_statname, "");
3328 io = GvIO(PL_statgv);
a0d0e21e
LW		 3329 }
3330 if (io && IoIFP(io)) {
5f05dabc 3331 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3332 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3333 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3334 if (PL_laststatval < 0)
5f05dabc 3335 RETPUSHUNDEF;
9cbac4c7 3336 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3337 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3338 RETPUSHNO;
3339 else
3340 RETPUSHYES;
9cbac4c7 3341 }
a20bf0c3 3342 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3343 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3344 if (i != EOF)
760ac839 3345 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3346 }
a20bf0c3 3347 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3348 RETPUSHYES;
a20bf0c3
JH		 3349 len = PerlIO_get_bufsiz(IoIFP(io));
3350 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3351 /* sfio can have large buffers - limit to 512 */
3352 if (len > 512)
3353 len = 512;
a0d0e21e
LW		 3354 }
3355 else {
2dd78f96 3356 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3357 gv = cGVOP_gv;
2dd78f96 3358 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3359 }
5b7ea690 3360 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3361 RETPUSHUNDEF;
3362 }
3363 }
3364 else {
3365 sv = POPs;
5f05dabc 3366 really_filename:
3280af22
NIS		 3367 PL_statgv = Nullgv;
3368 PL_laststatval = -1;
5c9aa243 3369 PL_laststype = OP_STAT;
2d8e6c8d 3370 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3371 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
67bae6b3 3372 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3373 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3374 RETPUSHUNDEF;
3375 }
146174a9
CB		 3376 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3377 if (PL_laststatval < 0) {
3378 (void)PerlIO_close(fp);
5f05dabc 3379 RETPUSHUNDEF;
146174a9 3380 }
60382766 3381 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3382 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3383 (void)PerlIO_close(fp);
a0d0e21e 3384 if (len <= 0) {
533c011a 3385 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3386 RETPUSHNO; /* special case NFS directories */
3387 RETPUSHYES; /* null file is anything */
3388 }
3389 s = tbuf;
3390 }
3391
3392 /* now scan s to look for textiness */
4633a7c4 3393 /* XXX ASCII dependent code */
a0d0e21e 3394
146174a9
CB		 3395#if defined(DOSISH) || defined(USEMYBINMODE)
3396 /* ignore trailing ^Z on short files */
3397 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3398 --len;
3399#endif
3400
a0d0e21e
LW		 3401 for (i = 0; i < len; i++, s++) {
3402 if (!*s) { /* null never allowed in text */
3403 odd += len;
3404 break;
3405 }
9d116dd7 3406#ifdef EBCDIC
301e8125 3407 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3408 odd++;
3409#else
146174a9
CB		 3410 else if (*s & 128) {
3411#ifdef USE_LOCALE
2de3dbcc 3412 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3413 continue;
3414#endif
3415 /* utf8 characters don't count as odd */
fd400ab9 3416 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3417 int ulen = UTF8SKIP(s);
3418 if (ulen < len - i) {
3419 int j;
3420 for (j = 1; j < ulen; j++) {
fd400ab9 3421 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3422 goto not_utf8;
3423 }
3424 --ulen; /* loop does extra increment */
3425 s += ulen;
3426 i += ulen;
3427 continue;
3428 }
3429 }
3430 not_utf8:
3431 odd++;
146174a9 3432 }
a0d0e21e
LW		 3433 else if (*s < 32 &&
3434 *s != '\n' && *s != '\r' && *s != '\b' &&
3435 *s != '\t' && *s != '\f' && *s != 27)
3436 odd++;
9d116dd7 3437#endif
a0d0e21e
LW		 3438 }
3439
533c011a 3440 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3441 RETPUSHNO;
3442 else
3443 RETPUSHYES;
3444}
3445
3446PP(pp_ftbinary)
3447{
cea2e8a9 3448 return pp_fttext();
a0d0e21e
LW		 3449}
3450
3451/* File calls. */
3452
3453PP(pp_chdir)
3454{
39644a26 3455 dSP; dTARGET;
a0d0e21e
LW		 3456 char *tmps;
3457 SV **svp;
2d8e6c8d 3458 STRLEN n_a;
a0d0e21e 3459
35ae6b54
MS		 3460 if( MAXARG == 1 )
3461 tmps = POPpx;
3462 else
3463 tmps = 0;
3464
3465 if( !tmps || !*tmps ) {
3466 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3467 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3468#ifdef VMS
35ae6b54 3469 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3470#endif
35ae6b54
MS		 3471 )
3472 {
3473 if( MAXARG == 1 )
9014280d 3474 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3475 tmps = SvPV(*svp, n_a);
3476 }
72f496dc 3477 else {
389ec635 3478 PUSHi(0);
b7ab37f8 3479 TAINT_PROPER("chdir");
389ec635
MS		 3480 RETURN;
3481 }
8ea155d1 3482 }
8ea155d1 3483
a0d0e21e 3484 TAINT_PROPER("chdir");
6ad3d225 3485 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3486#ifdef VMS
3487 /* Clear the DEFAULT element of ENV so we'll get the new value
3488 * in the future. */
6b88bc9c 3489 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3490#endif
a0d0e21e
LW		 3491 RETURN;
3492}
3493
3494PP(pp_chown)
3495{
a0d0e21e 3496#ifdef HAS_CHOWN
76ffd3b9
IZ		 3497 dSP; dMARK; dTARGET;
3498 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3499
a0d0e21e
LW		 3500 SP = MARK;
3501 PUSHi(value);
3502 RETURN;
3503#else
0322a713 3504 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3505#endif
3506}
3507
3508PP(pp_chroot)
3509{
a0d0e21e 3510#ifdef HAS_CHROOT
76ffd3b9 3511 dSP; dTARGET;
2d8e6c8d 3512 STRLEN n_a;
d05c1ba0 3513 char *tmps = POPpx;
a0d0e21e
LW		 3514 TAINT_PROPER("chroot");
3515 PUSHi( chroot(tmps) >= 0 );
3516 RETURN;
3517#else
cea2e8a9 3518 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3519#endif
3520}
3521
3522PP(pp_unlink)
3523{
39644a26 3524 dSP; dMARK; dTARGET;
a0d0e21e 3525 I32 value;
533c011a 3526 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3527 SP = MARK;
3528 PUSHi(value);
3529 RETURN;
3530}
3531
3532PP(pp_chmod)
3533{
39644a26 3534 dSP; dMARK; dTARGET;
a0d0e21e 3535 I32 value;
533c011a 3536 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3537 SP = MARK;
3538 PUSHi(value);
3539 RETURN;
3540}
3541
3542PP(pp_utime)
3543{
39644a26 3544 dSP; dMARK; dTARGET;
a0d0e21e 3545 I32 value;
533c011a 3546 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3547 SP = MARK;
3548 PUSHi(value);
3549 RETURN;
3550}
3551
3552PP(pp_rename)
3553{
39644a26 3554 dSP; dTARGET;
a0d0e21e 3555 int anum;
2d8e6c8d 3556 STRLEN n_a;
a0d0e21e 3557
2d8e6c8d
GS		 3558 char *tmps2 = POPpx;
3559 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3560 TAINT_PROPER("rename");
3561#ifdef HAS_RENAME
baed7233 3562 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3563#else
6b88bc9c 3564 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3565 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3566 anum = 1;
3567 else {
3654eb6c 3568 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3569 (void)UNLINK(tmps2);
3570 if (!(anum = link(tmps, tmps2)))
3571 anum = UNLINK(tmps);
3572 }
a0d0e21e
LW		 3573 }
3574#endif
3575 SETi( anum >= 0 );
3576 RETURN;
3577}
3578
3579PP(pp_link)
3580{
a0d0e21e 3581#ifdef HAS_LINK
370f6000 3582 dSP; dTARGET;
2d8e6c8d
GS		 3583 STRLEN n_a;
3584 char *tmps2 = POPpx;
3585 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3586 TAINT_PROPER("link");
146174a9 3587 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3588 RETURN;
a0d0e21e 3589#else
0322a713 3590 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3591#endif
a0d0e21e
LW		 3592}
3593
3594PP(pp_symlink)
3595{
a0d0e21e 3596#ifdef HAS_SYMLINK
9cad6237 3597 dSP; dTARGET;
2d8e6c8d
GS		 3598 STRLEN n_a;
3599 char *tmps2 = POPpx;
3600 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3601 TAINT_PROPER("symlink");
3602 SETi( symlink(tmps, tmps2) >= 0 );
3603 RETURN;
3604#else
cea2e8a9 3605 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3606#endif
3607}
3608
3609PP(pp_readlink)
3610{
76ffd3b9 3611 dSP;
a0d0e21e 3612#ifdef HAS_SYMLINK
76ffd3b9 3613 dTARGET;
a0d0e21e 3614 char *tmps;
46fc3d4c 3615 char buf[MAXPATHLEN];
a0d0e21e 3616 int len;
2d8e6c8d 3617 STRLEN n_a;
46fc3d4c 3618
fb73857a 3619#ifndef INCOMPLETE_TAINTS
3620 TAINT;
3621#endif
2d8e6c8d 3622 tmps = POPpx;
97dcea33 3623 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3624 EXTEND(SP, 1);
3625 if (len < 0)
3626 RETPUSHUNDEF;
3627 PUSHp(buf, len);
3628 RETURN;
3629#else
3630 EXTEND(SP, 1);
3631 RETSETUNDEF; /* just pretend it's a normal file */
3632#endif
3633}
3634
3635#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3636STATIC int
cea2e8a9 3637S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3638{
1e422769 3639 char *save_filename = filename;
3640 char *cmdline;
3641 char *s;
760ac839 3642 PerlIO *myfp;
1e422769 3643 int anum = 1;
a0d0e21e 3644
1e422769 3645 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3646 strcpy(cmdline, cmd);
3647 strcat(cmdline, " ");
3648 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3649 *s++ = '\\';
3650 *s++ = *filename++;
3651 }
3652 strcpy(s, " 2>&1");
6ad3d225 3653 myfp = PerlProc_popen(cmdline, "r");
1e422769 3654 Safefree(cmdline);
3655
a0d0e21e 3656 if (myfp) {
1e422769 3657 SV *tmpsv = sv_newmortal();
6b88bc9c 3658 /* Need to save/restore 'PL_rs' ?? */
760ac839 3659 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3660 (void)PerlProc_pclose(myfp);
a0d0e21e 3661 if (s != Nullch) {
1e422769 3662 int e;
3663 for (e = 1;
a0d0e21e 3664#ifdef HAS_SYS_ERRLIST
1e422769 3665 e <= sys_nerr
3666#endif
3667 ; e++)
3668 {
3669 /* you don't see this */
3670 char *errmsg =
3671#ifdef HAS_SYS_ERRLIST
3672 sys_errlist[e]
a0d0e21e 3673#else
1e422769 3674 strerror(e)
a0d0e21e 3675#endif
1e422769 3676 ;
3677 if (!errmsg)
3678 break;
3679 if (instr(s, errmsg)) {
3680 SETERRNO(e,0);
3681 return 0;
3682 }
a0d0e21e 3683 }
748a9306 3684 SETERRNO(0,0);
a0d0e21e
LW		 3685#ifndef EACCES
3686#define EACCES EPERM
3687#endif
1e422769 3688 if (instr(s, "cannot make"))
5b7ea690 3689 SETERRNO(EEXIST,RMS_FEX);
1e422769 3690 else if (instr(s, "existing file"))
5b7ea690 3691 SETERRNO(EEXIST,RMS_FEX);
1e422769 3692 else if (instr(s, "ile exists"))
5b7ea690 3693 SETERRNO(EEXIST,RMS_FEX);
1e422769 3694 else if (instr(s, "non-exist"))
5b7ea690 3695 SETERRNO(ENOENT,RMS_FNF);
1e422769 3696 else if (instr(s, "does not exist"))
5b7ea690 3697 SETERRNO(ENOENT,RMS_FNF);
1e422769 3698 else if (instr(s, "not empty"))
5b7ea690 3699 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3700 else if (instr(s, "cannot access"))
5b7ea690 3701 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3702 else
5b7ea690 3703 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3704 return 0;
3705 }
3706 else { /* some mkdirs return no failure indication */
6b88bc9c 3707 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3708 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3709 anum = !anum;
3710 if (anum)
748a9306 3711 SETERRNO(0,0);
a0d0e21e 3712 else
5b7ea690 3713 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3714 }
3715 return anum;
3716 }
3717 else
3718 return 0;
3719}
3720#endif
3721
c04fee9e
JH		 3722/* This macro removes trailing slashes from a directory name.
3723 * Different operating and file systems take differently to
3724 * trailing slashes. According to POSIX 1003.1 1996 Edition
3725 * any number of trailing slashes should be allowed.
3726 * Thusly we snip them away so that even non-conforming
3727 * systems are happy.
3728 * We should probably do this "filtering" for all
3729 * the functions that expect (potentially) directory names:
3730 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3731 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3732
3733#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3734 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3735 do { \
3736 (len)--; \
3737 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3738 (tmps) = savepvn((tmps), (len)); \
3739 (copy) = TRUE; \
3740 }
3741
a0d0e21e
LW		 3742PP(pp_mkdir)
3743{
39644a26 3744 dSP; dTARGET;
5a211162 3745 int mode;
a0d0e21e
LW		 3746#ifndef HAS_MKDIR
3747 int oldumask;
3748#endif
df25ddba 3749 STRLEN len;
5a211162 3750 char *tmps;
df25ddba 3751 bool copy = FALSE;
5a211162
GS		 3752
3753 if (MAXARG > 1)
3754 mode = POPi;
3755 else
3756 mode = 0777;
3757
c04fee9e 3758 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3759
3760 TAINT_PROPER("mkdir");
3761#ifdef HAS_MKDIR
6ad3d225 3762 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3763#else
3764 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3765 oldumask = PerlLIO_umask(0);
3766 PerlLIO_umask(oldumask);
3767 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3768#endif
df25ddba
JH		 3769 if (copy)
3770 Safefree(tmps);
a0d0e21e
LW		 3771 RETURN;
3772}
3773
3774PP(pp_rmdir)
3775{
39644a26 3776 dSP; dTARGET;
c04fee9e 3777 STRLEN len;
a0d0e21e 3778 char *tmps;
c04fee9e 3779 bool copy = FALSE;
a0d0e21e 3780
c04fee9e 3781 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3782 TAINT_PROPER("rmdir");
3783#ifdef HAS_RMDIR
c04fee9e 3784 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3785#else
c04fee9e 3786 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3787#endif
c04fee9e
JH		 3788 if (copy)
3789 Safefree(tmps);
a0d0e21e
LW		 3790 RETURN;
3791}
3792
3793/* Directory calls. */
3794
3795PP(pp_open_dir)
3796{
a0d0e21e 3797#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3798 dSP;
2d8e6c8d
GS		 3799 STRLEN n_a;
3800 char *dirname = POPpx;
1e2c6ed7
JH		 3801 GV *gv = (GV*)POPs;
3802 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3803
3804 if (!io)
3805 goto nope;
3806
3807 if (IoDIRP(io))
6ad3d225
GS		 3808 PerlDir_close(IoDIRP(io));
3809 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3810 goto nope;
3811
3812 RETPUSHYES;
3813nope:
3814 if (!errno)
5b7ea690 3815 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3816 RETPUSHUNDEF;
3817#else
cea2e8a9 3818 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3819#endif
3820}
3821
3822PP(pp_readdir)
3823{
e8e58922
JH		 3824#if !defined(Direntry_t) || !defined(HAS_READDIR)
3825 DIE(aTHX_ PL_no_dir_func, "readdir");
3826#else
fd8cd3a3 3827#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3828 Direntry_t *readdir (DIR *);
a0d0e21e 3829#endif
e8e58922
JH		 3830 dSP;
3831
3832 SV *sv;
3833 I32 gimme = GIMME;
3834 GV *gv = (GV *)POPs;
a0d0e21e 3835 register Direntry_t *dp;
a0d0e21e
LW		 3836 register IO *io = GvIOn(gv);
3837
3838 if (!io || !IoDIRP(io))
3839 goto nope;
3840
e8e58922
JH		 3841 do {
3842 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3843 if (!dp)
3844 break;
a0d0e21e 3845#ifdef DIRNAMLEN
e8e58922 3846 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3847#else
e8e58922 3848 sv = newSVpv(dp->d_name, 0);
fb73857a 3849#endif
3850#ifndef INCOMPLETE_TAINTS
e8e58922
JH		 3851 if (!(IoFLAGS(io) & IOf_UNTAINT))
3852 SvTAINTED_on(sv);
a0d0e21e 3853#endif
e8e58922 3854 XPUSHs(sv_2mortal(sv));
a0d0e21e 3855 }
e8e58922
JH		 3856 while (gimme == G_ARRAY);
3857
3858 if (!dp && gimme != G_ARRAY)
3859 goto nope;
3860
a0d0e21e
LW		 3861 RETURN;
3862
3863nope:
3864 if (!errno)
5b7ea690 3865 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3866 if (GIMME == G_ARRAY)
3867 RETURN;
3868 else
3869 RETPUSHUNDEF;
a0d0e21e
LW		 3870#endif
3871}
3872
3873PP(pp_telldir)
3874{
a0d0e21e 3875#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3876 dSP; dTARGET;
968dcd91
JH		 3877 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3878 /* XXX netbsd still seemed to.
3879 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3880 --JHI 1999-Feb-02 */
3881# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3882 long telldir (DIR *);
dfe9444c 3883# endif
a0d0e21e
LW		 3884 GV *gv = (GV*)POPs;
3885 register IO *io = GvIOn(gv);
3886
3887 if (!io || !IoDIRP(io))
3888 goto nope;
3889
6ad3d225 3890 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3891 RETURN;
3892nope:
3893 if (!errno)
5b7ea690 3894 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3895 RETPUSHUNDEF;
3896#else
cea2e8a9 3897 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3898#endif
3899}
3900
3901PP(pp_seekdir)
3902{
a0d0e21e 3903#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3904 dSP;
a0d0e21e
LW		 3905 long along = POPl;
3906 GV *gv = (GV*)POPs;
3907 register IO *io = GvIOn(gv);
3908
3909 if (!io || !IoDIRP(io))
3910 goto nope;
3911
6ad3d225 3912 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3913
3914 RETPUSHYES;
3915nope:
3916 if (!errno)
5b7ea690 3917 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3918 RETPUSHUNDEF;
3919#else
cea2e8a9 3920 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3921#endif
3922}
3923
3924PP(pp_rewinddir)
3925{
a0d0e21e 3926#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3927 dSP;
a0d0e21e
LW		 3928 GV *gv = (GV*)POPs;
3929 register IO *io = GvIOn(gv);
3930
3931 if (!io || !IoDIRP(io))
3932 goto nope;
3933
6ad3d225 3934 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3935 RETPUSHYES;
3936nope:
3937 if (!errno)
5b7ea690 3938 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3939 RETPUSHUNDEF;
3940#else
cea2e8a9 3941 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 3942#endif
3943}
3944
3945PP(pp_closedir)
3946{
a0d0e21e 3947#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3948 dSP;
a0d0e21e
LW		 3949 GV *gv = (GV*)POPs;
3950 register IO *io = GvIOn(gv);
3951
3952 if (!io || !IoDIRP(io))
3953 goto nope;
3954
3955#ifdef VOID_CLOSEDIR
6ad3d225 3956 PerlDir_close(IoDIRP(io));
a0d0e21e 3957#else
6ad3d225 3958 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 3959 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 3960 goto nope;
748a9306 3961 }
a0d0e21e
LW		 3962#endif
3963 IoDIRP(io) = 0;
3964
3965 RETPUSHYES;
3966nope:
3967 if (!errno)
5b7ea690 3968 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3969 RETPUSHUNDEF;
3970#else
cea2e8a9 3971 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 3972#endif
3973}
3974
3975/* Process control. */
3976
3977PP(pp_fork)
3978{
44a8e56a 3979#ifdef HAS_FORK
39644a26 3980 dSP; dTARGET;
761237fe 3981 Pid_t childpid;
a0d0e21e
LW		 3982 GV *tmpgv;
3983
3984 EXTEND(SP, 1);
45bc9206 3985 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 3986 childpid = PerlProc_fork();
a0d0e21e
LW		 3987 if (childpid < 0)
3988 RETSETUNDEF;
3989 if (!childpid) {
3990 /*SUPPRESS 560*/
306196c3
MS		 3991 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
3992 SvREADONLY_off(GvSV(tmpgv));
146174a9 3993 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 3994 SvREADONLY_on(GvSV(tmpgv));
3995 }
5b7ea690
JH		 3996#ifdef THREADS_HAVE_PIDS
3997 PL_ppid = (IV)getppid();
3998#endif
3280af22 3999 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4000 }
4001 PUSHi(childpid);
4002 RETURN;
4003#else
146174a9 4004# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4005 dSP; dTARGET;
146174a9
CB		 4006 Pid_t childpid;
4007
4008 EXTEND(SP, 1);
4009 PERL_FLUSHALL_FOR_CHILD;
4010 childpid = PerlProc_fork();
60fa28ff
GS		 4011 if (childpid == -1)
4012 RETSETUNDEF;
146174a9
CB		 4013 PUSHi(childpid);
4014 RETURN;
4015# else
0322a713 4016 DIE(aTHX_ PL_no_func, "fork");
146174a9 4017# endif
a0d0e21e
LW		 4018#endif
4019}
4020
4021PP(pp_wait)
4022{
301e8125 4023#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4024 dSP; dTARGET;
761237fe 4025 Pid_t childpid;
a0d0e21e 4026 int argflags;
a0d0e21e 4027
5835a535
JH		 4028 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4029 childpid = wait4pid(-1, &argflags, 0);
4030 else {
4031 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4032 errno == EINTR) {
4033 PERL_ASYNC_CHECK();
4034 }
0a0ada86 4035 }
68a29c53
GS		 4036# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4037 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4038 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4039# else
f86702cc 4040 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4041# endif
44a8e56a 4042 XPUSHi(childpid);
a0d0e21e
LW		 4043 RETURN;
4044#else
0322a713 4045 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4046#endif
4047}
4048
4049PP(pp_waitpid)
4050{
301e8125 4051#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4052 dSP; dTARGET;
4a04c497
NC		 4053 Pid_t pid;
4054 Pid_t result;
a0d0e21e
LW		 4055 int optype;
4056 int argflags;
a0d0e21e 4057
a0d0e21e 4058 optype = POPi;
4a04c497 4059 pid = TOPi;
5835a535 4060 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4a04c497 4061 result = wait4pid(pid, &argflags, optype);
5835a535 4062 else {
4a04c497 4063 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
5835a535
JH		 4064 errno == EINTR) {
4065 PERL_ASYNC_CHECK();
4066 }
0a0ada86 4067 }
68a29c53
GS		 4068# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4069 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4a04c497 4070 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4071# else
4a04c497 4072 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4073# endif
4a04c497 4074 SETi(result);
a0d0e21e
LW		 4075 RETURN;
4076#else
0322a713 4077 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4078#endif
4079}
4080
4081PP(pp_system)
4082{
39644a26 4083 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4084 I32 value;
2d8e6c8d 4085 STRLEN n_a;
76ffd3b9 4086 int result;
e7766f89 4087 I32 did_pipes = 0;
a0d0e21e 4088
bbd7eb8a
RD		 4089 if (PL_tainting) {
4090 TAINT_ENV();
4091 while (++MARK <= SP) {
4092 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4093 if (PL_tainted)
bbd7eb8a
RD		 4094 break;
4095 }
4096 MARK = ORIGMARK;
5b7ea690 4097 TAINT_PROPER("system");
a0d0e21e 4098 }
45bc9206 4099 PERL_FLUSHALL_FOR_CHILD;
273b0206 4100#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4101 {
eb160463
GS		 4102 Pid_t childpid;
4103 int pp[2];
4104
4105 if (PerlProc_pipe(pp) >= 0)
4106 did_pipes = 1;
4107 while ((childpid = PerlProc_fork()) == -1) {
4108 if (errno != EAGAIN) {
4109 value = -1;
4110 SP = ORIGMARK;
4111 PUSHi(value);
4112 if (did_pipes) {
4113 PerlLIO_close(pp[0]);
4114 PerlLIO_close(pp[1]);
4115 }
4116 RETURN;
4117 }
4118 sleep(5);
4119 }
4120 if (childpid > 0) {
4121 Sigsave_t ihand,qhand; /* place to save signals during system() */
4122 int status;
4123
4124 if (did_pipes)
4125 PerlLIO_close(pp[1]);
64ca3a65 4126#ifndef PERL_MICRO
eb160463
GS		 4127 rsignal_save(SIGINT, SIG_IGN, &ihand);
4128 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4129#endif
eb160463
GS		 4130 do {
4131 result = wait4pid(childpid, &status, 0);
4132 } while (result == -1 && errno == EINTR);
64ca3a65 4133#ifndef PERL_MICRO
eb160463
GS		 4134 (void)rsignal_restore(SIGINT, &ihand);
4135 (void)rsignal_restore(SIGQUIT, &qhand);
4136#endif
4137 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4138 do_execfree(); /* free any memory child malloced on fork */
4139 SP = ORIGMARK;
4140 if (did_pipes) {
4141 int errkid;
4142 int n = 0, n1;
4143
4144 while (n < sizeof(int)) {
4145 n1 = PerlLIO_read(pp[0],
4146 (void*)(((char*)&errkid)+n),
4147 (sizeof(int)) - n);
4148 if (n1 <= 0)
4149 break;
4150 n += n1;
4151 }
4152 PerlLIO_close(pp[0]);
4153 if (n) { /* Error */
4154 if (n != sizeof(int))
4155 DIE(aTHX_ "panic: kid popen errno read");
4156 errno = errkid; /* Propagate errno from kid */
4157 STATUS_CURRENT = -1;
4158 }
4159 }
4160 PUSHi(STATUS_CURRENT);
4161 RETURN;
4162 }
4163 if (did_pipes) {
4164 PerlLIO_close(pp[0]);
d5a9bfb0 4165#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4166 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4167#endif
eb160463 4168 }
e0a1f643
JH		 4169 if (PL_op->op_flags & OPf_STACKED) {
4170 SV *really = *++MARK;
4171 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4172 }
4173 else if (SP - MARK != 1)
4174 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4175 else {
4176 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4177 }
4178 PerlProc__exit(-1);
d5a9bfb0 4179 }
c3293030 4180#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4181 PL_statusvalue = 0;
4182 result = 0;
911d147d 4183 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4184 SV *really = *++MARK;
18729d3e 4185# if defined(WIN32) || defined(OS2)
54725af6
GS		 4186 value = (I32)do_aspawn(really, MARK, SP);
4187# else
c5be433b 4188 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4189# endif
a0d0e21e 4190 }
54725af6 4191 else if (SP - MARK != 1) {
18729d3e 4192# if defined(WIN32) || defined(OS2)
54725af6
GS		 4193 value = (I32)do_aspawn(Nullsv, MARK, SP);
4194# else
c5be433b 4195 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4196# endif
4197 }
a0d0e21e 4198 else {
c5be433b 4199 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4200 }
922b1888
GS		 4201 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4202 result = 1;
f86702cc 4203 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4204 do_execfree();
4205 SP = ORIGMARK;
922b1888 4206 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4207#endif /* !FORK or VMS */
4208 RETURN;
4209}
4210
4211PP(pp_exec)
4212{
39644a26 4213 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4214 I32 value;
2d8e6c8d 4215 STRLEN n_a;
a0d0e21e 4216
bbd7eb8a
RD		 4217 if (PL_tainting) {
4218 TAINT_ENV();
4219 while (++MARK <= SP) {
4220 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5b7ea690 4221 if (PL_tainted)
bbd7eb8a
RD		 4222 break;
4223 }
4224 MARK = ORIGMARK;
5b7ea690 4225 TAINT_PROPER("exec");
bbd7eb8a 4226 }
45bc9206 4227 PERL_FLUSHALL_FOR_CHILD;
533c011a 4228 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4229 SV *really = *++MARK;
4230 value = (I32)do_aexec(really, MARK, SP);
4231 }
4232 else if (SP - MARK != 1)
4233#ifdef VMS
4234 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4235#else
092bebab
JH		 4236# ifdef __OPEN_VM
4237 {
c5be433b 4238 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4239 value = 0;
4240 }
4241# else
a0d0e21e 4242 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4243# endif
a0d0e21e
LW		 4244#endif
4245 else {
a0d0e21e 4246#ifdef VMS
2d8e6c8d 4247 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4248#else
092bebab 4249# ifdef __OPEN_VM
c5be433b 4250 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4251 value = 0;
4252# else
2d8e6c8d 4253 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4254# endif
a0d0e21e
LW		 4255#endif
4256 }
146174a9 4257
a0d0e21e
LW		 4258 SP = ORIGMARK;
4259 PUSHi(value);
4260 RETURN;
4261}
4262
4263PP(pp_kill)
4264{
9cad6237 4265#ifdef HAS_KILL
39644a26 4266 dSP; dMARK; dTARGET;
a0d0e21e 4267 I32 value;
533c011a 4268 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4269 SP = MARK;
4270 PUSHi(value);
4271 RETURN;
4272#else
0322a713 4273 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4274#endif
4275}
4276
4277PP(pp_getppid)
4278{
4279#ifdef HAS_GETPPID
39644a26 4280 dSP; dTARGET;
5b7ea690
JH		 4281# ifdef THREADS_HAVE_PIDS
4282 XPUSHi( PL_ppid );
4283# else
a0d0e21e 4284 XPUSHi( getppid() );
5b7ea690 4285# endif
a0d0e21e
LW		 4286 RETURN;
4287#else
cea2e8a9 4288 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4289#endif
4290}
4291
4292PP(pp_getpgrp)
4293{
4294#ifdef HAS_GETPGRP
39644a26 4295 dSP; dTARGET;
d8a83dd3 4296 Pid_t pid;
9853a804 4297 Pid_t pgrp;
a0d0e21e
LW		 4298
4299 if (MAXARG < 1)
4300 pid = 0;
4301 else
4302 pid = SvIVx(POPs);
c3293030 4303#ifdef BSD_GETPGRP
9853a804 4304 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4305#else
146174a9 4306 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4307 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4308 pgrp = getpgrp();
a0d0e21e 4309#endif
9853a804 4310 XPUSHi(pgrp);
a0d0e21e
LW		 4311 RETURN;
4312#else
cea2e8a9 4313 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4314#endif
4315}
4316
4317PP(pp_setpgrp)
4318{
4319#ifdef HAS_SETPGRP
39644a26 4320 dSP; dTARGET;
d8a83dd3
JH		 4321 Pid_t pgrp;
4322 Pid_t pid;
a0d0e21e
LW		 4323 if (MAXARG < 2) {
4324 pgrp = 0;
4325 pid = 0;
4326 }
4327 else {
4328 pgrp = POPi;
4329 pid = TOPi;
4330 }
4331
4332 TAINT_PROPER("setpgrp");
c3293030
IZ		 4333#ifdef BSD_SETPGRP
4334 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4335#else
146174a9
CB		 4336 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4337 || (pid != 0 && pid != PerlProc_getpid()))
4338 {
4339 DIE(aTHX_ "setpgrp can't take arguments");
4340 }
a0d0e21e
LW		 4341 SETi( setpgrp() >= 0 );
4342#endif /* USE_BSDPGRP */
4343 RETURN;
4344#else
cea2e8a9 4345 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4346#endif
4347}
4348
4349PP(pp_getpriority)
4350{
a0d0e21e 4351#ifdef HAS_GETPRIORITY
9cad6237 4352 dSP; dTARGET;
d05c1ba0
JH		 4353 int who = POPi;
4354 int which = TOPi;
a0d0e21e
LW		 4355 SETi( getpriority(which, who) );
4356 RETURN;
4357#else
cea2e8a9 4358 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4359#endif
4360}
4361
4362PP(pp_setpriority)
4363{
a0d0e21e 4364#ifdef HAS_SETPRIORITY
9cad6237 4365 dSP; dTARGET;
d05c1ba0
JH		 4366 int niceval = POPi;
4367 int who = POPi;
4368 int which = TOPi;
a0d0e21e
LW		 4369 TAINT_PROPER("setpriority");
4370 SETi( setpriority(which, who, niceval) >= 0 );
4371 RETURN;
4372#else
cea2e8a9 4373 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4374#endif
4375}
4376
4377/* Time calls. */
4378
4379PP(pp_time)
4380{
39644a26 4381 dSP; dTARGET;
cbdc8872 4382#ifdef BIG_TIME
4383 XPUSHn( time(Null(Time_t*)) );
4384#else
a0d0e21e 4385 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4386#endif
a0d0e21e
LW		 4387 RETURN;
4388}
4389
a0d0e21e
LW		 4390PP(pp_tms)
4391{
9cad6237 4392#ifdef HAS_TIMES
39644a26 4393 dSP;
a0d0e21e 4394 EXTEND(SP, 4);
a0d0e21e 4395#ifndef VMS
3280af22 4396 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4397#else
6b88bc9c 4398 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4399 /* struct tms, though same data */
4400 /* is returned. */
a0d0e21e
LW		 4401#endif
4402
5b7ea690 4403 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4404 if (GIMME == G_ARRAY) {
5b7ea690
JH		 4405 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4406 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4407 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4408 }
4409 RETURN;
9cad6237 4410#else
75a5c1c6
JH		 4411# ifdef PERL_MICRO
4412 dSP;
4413 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4414 EXTEND(SP, 4);
4415 if (GIMME == G_ARRAY) {
4416 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4417 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4418 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4419 }
4420 RETURN;
4421# else
9cad6237 4422 DIE(aTHX_ "times not implemented");
75a5c1c6 4423# endif
55497cff 4424#endif /* HAS_TIMES */
a0d0e21e
LW		 4425}
4426
4427PP(pp_localtime)
4428{
cea2e8a9 4429 return pp_gmtime();
a0d0e21e
LW		 4430}
4431
4432PP(pp_gmtime)
4433{
39644a26 4434 dSP;
a0d0e21e
LW		 4435 Time_t when;
4436 struct tm *tmbuf;
4437 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4438 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4439 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4440
4441 if (MAXARG < 1)
4442 (void)time(&when);
4443 else
cbdc8872 4444#ifdef BIG_TIME
4445 when = (Time_t)SvNVx(POPs);
4446#else
a0d0e21e 4447 when = (Time_t)SvIVx(POPs);
cbdc8872 4448#endif
a0d0e21e 4449
533c011a 4450 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4451 tmbuf = localtime(&when);
4452 else
4453 tmbuf = gmtime(&when);
4454
a0d0e21e 4455 if (GIMME != G_ARRAY) {
46fc3d4c 4456 SV *tsv;
9a5ff6d9
AB		 4457 EXTEND(SP, 1);
4458 EXTEND_MORTAL(1);
a0d0e21e
LW		 4459 if (!tmbuf)
4460 RETPUSHUNDEF;
be28567c 4461 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4462 dayname[tmbuf->tm_wday],
4463 monname[tmbuf->tm_mon],
be28567c
GS		 4464 tmbuf->tm_mday,
4465 tmbuf->tm_hour,
4466 tmbuf->tm_min,
4467 tmbuf->tm_sec,
4468 tmbuf->tm_year + 1900);
46fc3d4c 4469 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4470 }
4471 else if (tmbuf) {
9a5ff6d9
AB		 4472 EXTEND(SP, 9);
4473 EXTEND_MORTAL(9);
4474 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4475 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4476 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4477 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4478 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4479 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4480 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4481 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4482 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4483 }
4484 RETURN;
4485}
4486
4487PP(pp_alarm)
4488{
9cad6237 4489#ifdef HAS_ALARM
39644a26 4490 dSP; dTARGET;
a0d0e21e 4491 int anum;
a0d0e21e
LW		 4492 anum = POPi;
4493 anum = alarm((unsigned int)anum);
4494 EXTEND(SP, 1);
4495 if (anum < 0)
4496 RETPUSHUNDEF;
c6419e06 4497 PUSHi(anum);
a0d0e21e
LW		 4498 RETURN;
4499#else
0322a713 4500 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4501#endif
4502}
4503
4504PP(pp_sleep)
4505{
39644a26 4506 dSP; dTARGET;
a0d0e21e
LW		 4507 I32 duration;
4508 Time_t lasttime;
4509 Time_t when;
4510
4511 (void)time(&lasttime);
4512 if (MAXARG < 1)
76e3520e 4513 PerlProc_pause();
a0d0e21e
LW		 4514 else {
4515 duration = POPi;
76e3520e 4516 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4517 }
4518 (void)time(&when);
4519 XPUSHi(when - lasttime);
4520 RETURN;
4521}
4522
4523/* Shared memory. */
4524
4525PP(pp_shmget)
4526{
cea2e8a9 4527 return pp_semget();
a0d0e21e
LW		 4528}
4529
4530PP(pp_shmctl)
4531{
cea2e8a9 4532 return pp_semctl();
a0d0e21e
LW		 4533}
4534
4535PP(pp_shmread)
4536{
cea2e8a9 4537 return pp_shmwrite();
a0d0e21e
LW		 4538}
4539
4540PP(pp_shmwrite)
4541{
4542#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4543 dSP; dMARK; dTARGET;
533c011a 4544 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4545 SP = MARK;
4546 PUSHi(value);
4547 RETURN;
4548#else
cea2e8a9 4549 return pp_semget();
a0d0e21e
LW		 4550#endif
4551}
4552
4553/* Message passing. */
4554
4555PP(pp_msgget)
4556{
cea2e8a9 4557 return pp_semget();
a0d0e21e
LW		 4558}
4559
4560PP(pp_msgctl)
4561{
cea2e8a9 4562 return pp_semctl();
a0d0e21e
LW		 4563}
4564
4565PP(pp_msgsnd)
4566{
4567#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4568 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4569 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4570 SP = MARK;
4571 PUSHi(value);
4572 RETURN;
4573#else
cea2e8a9 4574 return pp_semget();
a0d0e21e
LW		 4575#endif
4576}
4577
4578PP(pp_msgrcv)
4579{
4580#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4581 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4582 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4583 SP = MARK;
4584 PUSHi(value);
4585 RETURN;
4586#else
cea2e8a9 4587 return pp_semget();
a0d0e21e
LW		 4588#endif
4589}
4590
4591/* Semaphores. */
4592
4593PP(pp_semget)
4594{
4595#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4596 dSP; dMARK; dTARGET;
533c011a 4597 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4598 SP = MARK;
4599 if (anum == -1)
4600 RETPUSHUNDEF;
4601 PUSHi(anum);
4602 RETURN;
4603#else
cea2e8a9 4604 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4605#endif
4606}
4607
4608PP(pp_semctl)
4609{
4610#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4611 dSP; dMARK; dTARGET;
533c011a 4612 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4613 SP = MARK;
4614 if (anum == -1)
4615 RETSETUNDEF;
4616 if (anum != 0) {
4617 PUSHi(anum);
4618 }
4619 else {
8903cb82 4620 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4621 }
4622 RETURN;
4623#else
cea2e8a9 4624 return pp_semget();
a0d0e21e
LW		 4625#endif
4626}
4627
4628PP(pp_semop)
4629{
4630#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4631 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4632 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4633 SP = MARK;
4634 PUSHi(value);
4635 RETURN;
4636#else
cea2e8a9 4637 return pp_semget();
a0d0e21e
LW		 4638#endif
4639}
4640
4641/* Get system info. */
4642
4643PP(pp_ghbyname)
4644{
693762b4 4645#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4646 return pp_ghostent();
a0d0e21e 4647#else
cea2e8a9 4648 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4649#endif
4650}
4651
4652PP(pp_ghbyaddr)
4653{
693762b4 4654#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4655 return pp_ghostent();
a0d0e21e 4656#else
cea2e8a9 4657 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4658#endif
4659}
4660
4661PP(pp_ghostent)
4662{
693762b4 4663#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4664 dSP;
533c011a 4665 I32 which = PL_op->op_type;
a0d0e21e
LW		 4666 register char **elem;
4667 register SV *sv;
dc45a647 4668#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4669 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4670 struct hostent *gethostbyname(Netdb_name_t);
4671 struct hostent *gethostent(void);
a0d0e21e
LW		 4672#endif
4673 struct hostent *hent;
4674 unsigned long len;
2d8e6c8d 4675 STRLEN n_a;
a0d0e21e
LW		 4676
4677 EXTEND(SP, 10);
edd309b7 4678 if (which == OP_GHBYNAME) {
dc45a647 4679#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4680 char* name = POPpbytex;
4681 hent = PerlSock_gethostbyname(name);
dc45a647 4682#else
cea2e8a9 4683 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4684#endif
edd309b7 4685 }
a0d0e21e 4686 else if (which == OP_GHBYADDR) {
dc45a647 4687#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4688 int addrtype = POPi;
748a9306 4689 SV *addrsv = POPs;
a0d0e21e 4690 STRLEN addrlen;
595ae481 4691 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4692
4599a1de 4693 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4694#else
cea2e8a9 4695 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4696#endif
a0d0e21e
LW		 4697 }
4698 else
4699#ifdef HAS_GETHOSTENT
6ad3d225 4700 hent = PerlSock_gethostent();
a0d0e21e 4701#else
cea2e8a9 4702 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4703#endif
4704
4705#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4706 if (!hent) {
4707#ifdef USE_REENTRANT_API
4708# ifdef USE_GETHOSTENT_ERRNO
4709 h_errno = PL_reentrant_buffer->_gethostent_errno;
4710# endif
4711#endif
4712 STATUS_NATIVE_SET(h_errno);
4713 }
a0d0e21e
LW		 4714#endif
4715
4716 if (GIMME != G_ARRAY) {
4717 PUSHs(sv = sv_newmortal());
4718 if (hent) {
4719 if (which == OP_GHBYNAME) {
fd0af264 4720 if (hent->h_addr)
4721 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4722 }
4723 else
4724 sv_setpv(sv, (char*)hent->h_name);
4725 }
4726 RETURN;
4727 }
4728
4729 if (hent) {
3280af22 4730 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4731 sv_setpv(sv, (char*)hent->h_name);
3280af22 4732 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4733 for (elem = hent->h_aliases; elem && *elem; elem++) {
4734 sv_catpv(sv, *elem);
4735 if (elem[1])
4736 sv_catpvn(sv, " ", 1);
4737 }
3280af22 4738 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4739 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4740 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4741 len = hent->h_length;
1e422769 4742 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4743#ifdef h_addr
4744 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4745 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4746 sv_setpvn(sv, *elem, len);
4747 }
4748#else
6b88bc9c 4749 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4750 if (hent->h_addr)
4751 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4752#endif /* h_addr */
4753 }
4754 RETURN;
4755#else
cea2e8a9 4756 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4757#endif
4758}
4759
4760PP(pp_gnbyname)
4761{
693762b4 4762#ifdef HAS_GETNETBYNAME
cea2e8a9 4763 return pp_gnetent();
a0d0e21e 4764#else
cea2e8a9 4765 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4766#endif
4767}
4768
4769PP(pp_gnbyaddr)
4770{
693762b4 4771#ifdef HAS_GETNETBYADDR
cea2e8a9 4772 return pp_gnetent();
a0d0e21e 4773#else
cea2e8a9 4774 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4775#endif
4776}
4777
4778PP(pp_gnetent)
4779{
693762b4 4780#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4781 dSP;
533c011a 4782 I32 which = PL_op->op_type;
a0d0e21e
LW		 4783 register char **elem;
4784 register SV *sv;
dc45a647 4785#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4786 struct netent *getnetbyaddr(Netdb_net_t, int);
4787 struct netent *getnetbyname(Netdb_name_t);
4788 struct netent *getnetent(void);
8ac85365 4789#endif
a0d0e21e 4790 struct netent *nent;
2d8e6c8d 4791 STRLEN n_a;
a0d0e21e 4792
edd309b7 4793 if (which == OP_GNBYNAME){
dc45a647 4794#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4795 char *name = POPpbytex;
4796 nent = PerlSock_getnetbyname(name);
dc45a647 4797#else
cea2e8a9 4798 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4799#endif
edd309b7 4800 }
a0d0e21e 4801 else if (which == OP_GNBYADDR) {
dc45a647 4802#ifdef HAS_GETNETBYADDR
a0d0e21e 4803 int addrtype = POPi;
3bb7c1b4 4804 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4805 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4806#else
cea2e8a9 4807 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4808#endif
a0d0e21e
LW		 4809 }
4810 else
dc45a647 4811#ifdef HAS_GETNETENT
76e3520e 4812 nent = PerlSock_getnetent();
dc45a647 4813#else
cea2e8a9 4814 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4815#endif
a0d0e21e 4816
10bc17b6
JH		 4817#ifdef HOST_NOT_FOUND
4818 if (!nent) {
4819#ifdef USE_REENTRANT_API
4820# ifdef USE_GETNETENT_ERRNO
4821 h_errno = PL_reentrant_buffer->_getnetent_errno;
4822# endif
4823#endif
4824 STATUS_NATIVE_SET(h_errno);
4825 }
4826#endif
4827
a0d0e21e
LW		 4828 EXTEND(SP, 4);
4829 if (GIMME != G_ARRAY) {
4830 PUSHs(sv = sv_newmortal());
4831 if (nent) {
4832 if (which == OP_GNBYNAME)
1e422769 4833 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4834 else
4835 sv_setpv(sv, nent->n_name);
4836 }
4837 RETURN;
4838 }
4839
4840 if (nent) {
3280af22 4841 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4842 sv_setpv(sv, nent->n_name);
3280af22 4843 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4844 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4845 sv_catpv(sv, *elem);
4846 if (elem[1])
4847 sv_catpvn(sv, " ", 1);
4848 }
3280af22 4849 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4850 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4851 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4852 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4853 }
4854
4855 RETURN;
4856#else
cea2e8a9 4857 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4858#endif
4859}
4860
4861PP(pp_gpbyname)
4862{
693762b4 4863#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4864 return pp_gprotoent();
a0d0e21e 4865#else
cea2e8a9 4866 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4867#endif
4868}
4869
4870PP(pp_gpbynumber)
4871{
693762b4 4872#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4873 return pp_gprotoent();
a0d0e21e 4874#else
cea2e8a9 4875 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4876#endif
4877}
4878
4879PP(pp_gprotoent)
4880{
693762b4 4881#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4882 dSP;
533c011a 4883 I32 which = PL_op->op_type;
a0d0e21e 4884 register char **elem;
301e8125 4885 register SV *sv;
dc45a647 4886#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4887 struct protoent *getprotobyname(Netdb_name_t);
4888 struct protoent *getprotobynumber(int);
4889 struct protoent *getprotoent(void);
8ac85365 4890#endif
a0d0e21e 4891 struct protoent *pent;
2d8e6c8d 4892 STRLEN n_a;
a0d0e21e 4893
edd309b7 4894 if (which == OP_GPBYNAME) {
e5c9fcd0 4895#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4896 char* name = POPpbytex;
4897 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4898#else
cea2e8a9 4899 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4900#endif
edd309b7
JH		 4901 }
4902 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4903#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4904 int number = POPi;
4905 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4906#else
edd309b7 4907 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4908#endif
edd309b7 4909 }
a0d0e21e 4910 else
e5c9fcd0 4911#ifdef HAS_GETPROTOENT
6ad3d225 4912 pent = PerlSock_getprotoent();
e5c9fcd0 4913#else
cea2e8a9 4914 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4915#endif
a0d0e21e
LW		 4916
4917 EXTEND(SP, 3);
4918 if (GIMME != G_ARRAY) {
4919 PUSHs(sv = sv_newmortal());
4920 if (pent) {
4921 if (which == OP_GPBYNAME)
1e422769 4922 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4923 else
4924 sv_setpv(sv, pent->p_name);
4925 }
4926 RETURN;
4927 }
4928
4929 if (pent) {
3280af22 4930 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4931 sv_setpv(sv, pent->p_name);
3280af22 4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4933 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4934 sv_catpv(sv, *elem);
4935 if (elem[1])
4936 sv_catpvn(sv, " ", 1);
4937 }
3280af22 4938 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4939 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4940 }
4941
4942 RETURN;
4943#else
cea2e8a9 4944 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 4945#endif
4946}
4947
4948PP(pp_gsbyname)
4949{
9ec75305 4950#ifdef HAS_GETSERVBYNAME
cea2e8a9 4951 return pp_gservent();
a0d0e21e 4952#else
cea2e8a9 4953 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 4954#endif
4955}
4956
4957PP(pp_gsbyport)
4958{
9ec75305 4959#ifdef HAS_GETSERVBYPORT
cea2e8a9 4960 return pp_gservent();
a0d0e21e 4961#else
cea2e8a9 4962 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 4963#endif
4964}
4965
4966PP(pp_gservent)
4967{
693762b4 4968#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 4969 dSP;
533c011a 4970 I32 which = PL_op->op_type;
a0d0e21e
LW		 4971 register char **elem;
4972 register SV *sv;
dc45a647 4973#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4974 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4975 struct servent *getservbyport(int, Netdb_name_t);
4976 struct servent *getservent(void);
8ac85365 4977#endif
a0d0e21e 4978 struct servent *sent;
2d8e6c8d 4979 STRLEN n_a;
a0d0e21e
LW		 4980
4981 if (which == OP_GSBYNAME) {
dc45a647 4982#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 4983 char *proto = POPpbytex;
4984 char *name = POPpbytex;
a0d0e21e
LW		 4985
4986 if (proto && !*proto)
4987 proto = Nullch;
4988
6ad3d225 4989 sent = PerlSock_getservbyname(name, proto);
dc45a647 4990#else
cea2e8a9 4991 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 4992#endif
a0d0e21e
LW		 4993 }
4994 else if (which == OP_GSBYPORT) {
dc45a647 4995#ifdef HAS_GETSERVBYPORT
42e0c139 4996 char *proto = POPpbytex;
eb160463 4997 unsigned short port = (unsigned short)POPu;
a0d0e21e 4998
bda19f49
JH		 4999 if (proto && !*proto)
5000 proto = Nullch;
5001
36477c24 5002#ifdef HAS_HTONS
6ad3d225 5003 port = PerlSock_htons(port);
36477c24 5004#endif
6ad3d225 5005 sent = PerlSock_getservbyport(port, proto);
dc45a647 5006#else
cea2e8a9 5007 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5008#endif
a0d0e21e
LW		 5009 }
5010 else
e5c9fcd0 5011#ifdef HAS_GETSERVENT
6ad3d225 5012 sent = PerlSock_getservent();
e5c9fcd0 5013#else
cea2e8a9 5014 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5015#endif
a0d0e21e
LW		 5016
5017 EXTEND(SP, 4);
5018 if (GIMME != G_ARRAY) {
5019 PUSHs(sv = sv_newmortal());
5020 if (sent) {
5021 if (which == OP_GSBYNAME) {
5022#ifdef HAS_NTOHS
6ad3d225 5023 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5024#else
1e422769 5025 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5026#endif
5027 }
5028 else
5029 sv_setpv(sv, sent->s_name);
5030 }
5031 RETURN;
5032 }
5033
5034 if (sent) {
3280af22 5035 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5036 sv_setpv(sv, sent->s_name);
3280af22 5037 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5038 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5039 sv_catpv(sv, *elem);
5040 if (elem[1])
5041 sv_catpvn(sv, " ", 1);
5042 }
3280af22 5043 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5044#ifdef HAS_NTOHS
76e3520e 5045 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5046#else
1e422769 5047 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5048#endif
3280af22 5049 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5050 sv_setpv(sv, sent->s_proto);
5051 }
5052
5053 RETURN;
5054#else
cea2e8a9 5055 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5056#endif
5057}
5058
5059PP(pp_shostent)
5060{
693762b4 5061#ifdef HAS_SETHOSTENT
9cad6237 5062 dSP;
76e3520e 5063 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5064 RETSETYES;
5065#else
cea2e8a9 5066 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5067#endif
5068}
5069
5070PP(pp_snetent)
5071{
693762b4 5072#ifdef HAS_SETNETENT
9cad6237 5073 dSP;
76e3520e 5074 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5075 RETSETYES;
5076#else
cea2e8a9 5077 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5078#endif
5079}
5080
5081PP(pp_sprotoent)
5082{
693762b4 5083#ifdef HAS_SETPROTOENT
9cad6237 5084 dSP;
76e3520e 5085 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5086 RETSETYES;
5087#else
cea2e8a9 5088 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5089#endif
5090}
5091
5092PP(pp_sservent)
5093{
693762b4 5094#ifdef HAS_SETSERVENT
9cad6237 5095 dSP;
76e3520e 5096 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5097 RETSETYES;
5098#else
cea2e8a9 5099 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5100#endif
5101}
5102
5103PP(pp_ehostent)
5104{
693762b4 5105#ifdef HAS_ENDHOSTENT
9cad6237 5106 dSP;
76e3520e 5107 PerlSock_endhostent();
924508f0 5108 EXTEND(SP,1);
a0d0e21e
LW		 5109 RETPUSHYES;
5110#else
cea2e8a9 5111 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5112#endif
5113}
5114
5115PP(pp_enetent)
5116{
693762b4 5117#ifdef HAS_ENDNETENT
9cad6237 5118 dSP;
76e3520e 5119 PerlSock_endnetent();
924508f0 5120 EXTEND(SP,1);
a0d0e21e
LW		 5121 RETPUSHYES;
5122#else
cea2e8a9 5123 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5124#endif
5125}
5126
5127PP(pp_eprotoent)
5128{
693762b4 5129#ifdef HAS_ENDPROTOENT
9cad6237 5130 dSP;
76e3520e 5131 PerlSock_endprotoent();
924508f0 5132 EXTEND(SP,1);
a0d0e21e
LW		 5133 RETPUSHYES;
5134#else
cea2e8a9 5135 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5136#endif
5137}
5138
5139PP(pp_eservent)
5140{
693762b4 5141#ifdef HAS_ENDSERVENT
9cad6237 5142 dSP;
76e3520e 5143 PerlSock_endservent();
924508f0 5144 EXTEND(SP,1);
a0d0e21e
LW		 5145 RETPUSHYES;
5146#else
cea2e8a9 5147 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5148#endif
5149}
5150
5151PP(pp_gpwnam)
5152{
5153#ifdef HAS_PASSWD
cea2e8a9 5154 return pp_gpwent();
a0d0e21e 5155#else
cea2e8a9 5156 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5157#endif
5158}
5159
5160PP(pp_gpwuid)
5161{
5162#ifdef HAS_PASSWD
cea2e8a9 5163 return pp_gpwent();
a0d0e21e 5164#else
cea2e8a9 5165 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5166#endif
5167}
5168
5169PP(pp_gpwent)
5170{
0994c4d0 5171#ifdef HAS_PASSWD
9cad6237 5172 dSP;
533c011a 5173 I32 which = PL_op->op_type;
a0d0e21e 5174 register SV *sv;
2d8e6c8d 5175 STRLEN n_a;
e3aefe8d 5176 struct passwd *pwent = NULL;
301e8125 5177 /*
bcf53261
JH		 5178 * We currently support only the SysV getsp* shadow password interface.
5179 * The interface is declared in <shadow.h> and often one needs to link
5180 * with -lsecurity or some such.
5181 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5182 * (and SCO?)
5183 *
5184 * AIX getpwnam() is clever enough to return the encrypted password
5185 * only if the caller (euid?) is root.
5186 *
ee87c6cb 5187 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5188 * seem to contain more than one interface for accessing the shadow
5189 * password databases, possibly for compatibility reasons.
3813c136 5190 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5191 * are much more complicated, but also very similar to each other.
5192 *
5193 * <sys/types.h>
5194 * <sys/security.h>
5195 * <prot.h>
5196 * struct pr_passwd *getprpw*();
5197 * The password is in
3813c136
JH		 5198 * char getprpw*(...).ufld.fd_encrypt[]
5199 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5200 *
5201 * <sys/types.h>
5202 * <sys/security.h>
5203 * <prot.h>
5204 * struct es_passwd *getespw*();
5205 * The password is in
5206 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5207 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5208 *
ee87c6cb
JH		 5209 * <userpw.h> (AIX)
5210 * struct userpw *getuserpw();
5211 * The password is in
5212 * char *(getuserpw(...)).spw_upw_passwd
5213 * (but the de facto standard getpwnam() should work okay)
5214 *
3813c136 5215 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5216 *
5217 * In HP-UX for getprpw*() the manual page claims that one should include
5218 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5219 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5220 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5221 *
5222 * Note that <sys/security.h> is already probed for, but currently
5223 * it is only included in special cases.
301e8125 5224 *
bcf53261
JH		 5225 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5226 * be preferred interface, even though also the getprpw*() interface
5227 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5228 * One also needs to call set_auth_parameters() in main() before
5229 * doing anything else, whether one is using getespw*() or getprpw*().
5230 *
5231 * Note that accessing the shadow databases can be magnitudes
5232 * slower than accessing the standard databases.
bcf53261
JH		 5233 *
5234 * --jhi
5235 */
a0d0e21e 5236
e67108bc
JH		 5237# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5238 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5239 * the pw_comment is left uninitialized. */
5240 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5241# endif
5242
e3aefe8d
JH		 5243 switch (which) {
5244 case OP_GPWNAM:
edd309b7
JH		 5245 {
5246 char* name = POPpbytex;
5247 pwent = getpwnam(name);
5248 }
5249 break;
e3aefe8d 5250 case OP_GPWUID:
edd309b7
JH		 5251 {
5252 Uid_t uid = POPi;
5253 pwent = getpwuid(uid);
5254 }
e3aefe8d
JH		 5255 break;
5256 case OP_GPWENT:
1883634f 5257# ifdef HAS_GETPWENT
e3aefe8d 5258 pwent = getpwent();
faea9016
IRC		 5259#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5260 if (pwent) pwent = getpwnam(pwent->pw_name);
5261#endif
1883634f 5262# else
a45d1c96 5263 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5264# endif
e3aefe8d
JH		 5265 break;
5266 }
8c0bfa08 5267
a0d0e21e
LW		 5268 EXTEND(SP, 10);
5269 if (GIMME != G_ARRAY) {
5270 PUSHs(sv = sv_newmortal());
5271 if (pwent) {
5272 if (which == OP_GPWNAM)
1883634f 5273# if Uid_t_sign <= 0
1e422769 5274 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5275# else
23dcd6c8 5276 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5277# endif
a0d0e21e
LW		 5278 else
5279 sv_setpv(sv, pwent->pw_name);
5280 }
5281 RETURN;
5282 }
5283
5284 if (pwent) {
3280af22 5285 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5286 sv_setpv(sv, pwent->pw_name);
6ee623d5 5287
3280af22 5288 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5289 SvPOK_off(sv);
5290 /* If we have getspnam(), we try to dig up the shadow
5291 * password. If we are underprivileged, the shadow
5292 * interface will set the errno to EACCES or similar,
5293 * and return a null pointer. If this happens, we will
5294 * use the dummy password (usually "*" or "x") from the
5295 * standard password database.
5296 *
5297 * In theory we could skip the shadow call completely
5298 * if euid != 0 but in practice we cannot know which
5299 * security measures are guarding the shadow databases
5300 * on a random platform.
5301 *
5302 * Resist the urge to use additional shadow interfaces.
5303 * Divert the urge to writing an extension instead.
5304 *
5305 * --jhi */
ee87c6cb
JH		 5306 /* Some AIX setups falsely(?) detect some getspnam(), which
5307 * has a different API than the Solaris/IRIX one. */
5308# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5309 {
5310 struct spwd *spwent;
5311 int saverrno; /* Save and restore errno so that
5312 * underprivileged attempts seem
5313 * to have never made the unsccessful
5314 * attempt to retrieve the shadow password. */
5315
5316 saverrno = errno;
5317 spwent = getspnam(pwent->pw_name);
5318 errno = saverrno;
5319 if (spwent && spwent->sp_pwdp)
5320 sv_setpv(sv, spwent->sp_pwdp);
5321 }
f1066039 5322# endif
e020c87d 5323# ifdef PWPASSWD
3813c136
JH		 5324 if (!SvPOK(sv)) /* Use the standard password, then. */
5325 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5326# endif
3813c136 5327
1883634f 5328# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5329 /* passwd is tainted because user himself can diddle with it.
5330 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5331 SvTAINTED_on(sv);
1883634f 5332# endif
6ee623d5 5333
3280af22 5334 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5335# if Uid_t_sign <= 0
1e422769 5336 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5337# else
23dcd6c8 5338 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5339# endif
6ee623d5 5340
3280af22 5341 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5342# if Uid_t_sign <= 0
1e422769 5343 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5344# else
23dcd6c8 5345 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5346# endif
3813c136
JH		 5347 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5348 * because of the poor interface of the Perl getpw*(),
5349 * not because there's some standard/convention saying so.
5350 * A better interface would have been to return a hash,
5351 * but we are accursed by our history, alas. --jhi. */
3280af22 5352 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5353# ifdef PWCHANGE
1e422769 5354 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5355# else
1883634f
JH		 5356# ifdef PWQUOTA
5357 sv_setiv(sv, (IV)pwent->pw_quota);
5358# else
a1757be1 5359# ifdef PWAGE
a0d0e21e 5360 sv_setpv(sv, pwent->pw_age);
a1757be1 5361# endif
6ee623d5
GS		 5362# endif
5363# endif
6ee623d5 5364
3813c136
JH		 5365 /* pw_class and pw_comment are mutually exclusive--.
5366 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5367 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5368# ifdef PWCLASS
a0d0e21e 5369 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5370# else
5371# ifdef PWCOMMENT
a0d0e21e 5372 sv_setpv(sv, pwent->pw_comment);
1883634f 5373# endif
6ee623d5 5374# endif
6ee623d5 5375
3280af22 5376 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5377# ifdef PWGECOS
a0d0e21e 5378 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5379# endif
5380# ifndef INCOMPLETE_TAINTS
d2719217 5381 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5382 SvTAINTED_on(sv);
1883634f 5383# endif
6ee623d5 5384
3280af22 5385 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5386 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5387
3280af22 5388 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5389 sv_setpv(sv, pwent->pw_shell);
1883634f 5390# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5391 /* pw_shell is tainted because user himself can diddle with it. */
5392 SvTAINTED_on(sv);
1883634f 5393# endif
6ee623d5 5394
1883634f 5395# ifdef PWEXPIRE
6b88bc9c 5396 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5397 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5398# endif
a0d0e21e
LW		 5399 }
5400 RETURN;
5401#else
cea2e8a9 5402 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5403#endif
5404}
5405
5406PP(pp_spwent)
5407{
d493b042 5408#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5409 dSP;
a0d0e21e
LW		 5410 setpwent();
5411 RETPUSHYES;
5412#else
cea2e8a9 5413 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5414#endif
5415}
5416
5417PP(pp_epwent)
5418{
28e8609d 5419#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5420 dSP;
a0d0e21e
LW		 5421 endpwent();
5422 RETPUSHYES;
5423#else
cea2e8a9 5424 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5425#endif
5426}
5427
5428PP(pp_ggrnam)
5429{
5430#ifdef HAS_GROUP
cea2e8a9 5431 return pp_ggrent();
a0d0e21e 5432#else
cea2e8a9 5433 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5434#endif
5435}
5436
5437PP(pp_ggrgid)
5438{
5439#ifdef HAS_GROUP
cea2e8a9 5440 return pp_ggrent();
a0d0e21e 5441#else
cea2e8a9 5442 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5443#endif
5444}
5445
5446PP(pp_ggrent)
5447{
0994c4d0 5448#ifdef HAS_GROUP
9cad6237 5449 dSP;
533c011a 5450 I32 which = PL_op->op_type;
a0d0e21e
LW		 5451 register char **elem;
5452 register SV *sv;
5453 struct group *grent;
2d8e6c8d 5454 STRLEN n_a;
a0d0e21e 5455
edd309b7
JH		 5456 if (which == OP_GGRNAM) {
5457 char* name = POPpbytex;
5458 grent = (struct group *)getgrnam(name);
5459 }
5460 else if (which == OP_GGRGID) {
5461 Gid_t gid = POPi;
5462 grent = (struct group *)getgrgid(gid);
5463 }
a0d0e21e 5464 else
0994c4d0 5465#ifdef HAS_GETGRENT
a0d0e21e 5466 grent = (struct group *)getgrent();
0994c4d0
JH		 5467#else
5468 DIE(aTHX_ PL_no_func, "getgrent");
5469#endif
a0d0e21e
LW		 5470
5471 EXTEND(SP, 4);
5472 if (GIMME != G_ARRAY) {
5473 PUSHs(sv = sv_newmortal());
5474 if (grent) {
5475 if (which == OP_GGRNAM)
1e422769 5476 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5477 else
5478 sv_setpv(sv, grent->gr_name);
5479 }
5480 RETURN;
5481 }
5482
5483 if (grent) {
3280af22 5484 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5485 sv_setpv(sv, grent->gr_name);
28e8609d 5486
3280af22 5487 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5488#ifdef GRPASSWD
a0d0e21e 5489 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5490#endif
5491
3280af22 5492 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5493 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5494
5b56e7c5 5495#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5496 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5497 /* In UNICOS/mk (_CRAYMPP) the multithreading
5498 * versions (getgrnam_r, getgrgid_r)
5499 * seem to return an illegal pointer
5500 * as the group members list, gr_mem.
5501 * getgrent() doesn't even have a _r version
5502 * but the gr_mem is poisonous anyway.
5503 * So yes, you cannot get the list of group
5504 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5505 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5506 sv_catpv(sv, *elem);
5507 if (elem[1])
5508 sv_catpvn(sv, " ", 1);
5509 }
3d7e8424 5510#endif
a0d0e21e
LW		 5511 }
5512
5513 RETURN;
5514#else
cea2e8a9 5515 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5516#endif
5517}
5518
5519PP(pp_sgrent)
5520{
28e8609d 5521#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5522 dSP;
a0d0e21e
LW		 5523 setgrent();
5524 RETPUSHYES;
5525#else
cea2e8a9 5526 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5527#endif
5528}
5529
5530PP(pp_egrent)
5531{
28e8609d 5532#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5533 dSP;
a0d0e21e
LW		 5534 endgrent();
5535 RETPUSHYES;
5536#else
cea2e8a9 5537 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5538#endif
5539}
5540
5541PP(pp_getlogin)
5542{
a0d0e21e 5543#ifdef HAS_GETLOGIN
9cad6237 5544 dSP; dTARGET;
a0d0e21e
LW		 5545 char *tmps;
5546 EXTEND(SP, 1);
76e3520e 5547 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5548 RETPUSHUNDEF;
5549 PUSHp(tmps, strlen(tmps));
5550 RETURN;
5551#else
cea2e8a9 5552 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5553#endif
5554}
5555
5556/* Miscellaneous. */
5557
5558PP(pp_syscall)
5559{
d2719217 5560#ifdef HAS_SYSCALL
39644a26 5561 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5562 register I32 items = SP - MARK;
5563 unsigned long a[20];
5564 register I32 i = 0;
5565 I32 retval = -1;
2d8e6c8d 5566 STRLEN n_a;
a0d0e21e 5567
3280af22 5568 if (PL_tainting) {
a0d0e21e 5569 while (++MARK <= SP) {
bbce6d69 5570 if (SvTAINTED(*MARK)) {
5571 TAINT;
5572 break;
5573 }
a0d0e21e
LW		 5574 }
5575 MARK = ORIGMARK;
5576 TAINT_PROPER("syscall");
5577 }
5578
5579 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5580 * or where sizeof(long) != sizeof(char*). But such machines will
5581 * not likely have syscall implemented either, so who cares?
5582 */
5583 while (++MARK <= SP) {
5584 if (SvNIOK(*MARK) || !i)
5585 a[i++] = SvIV(*MARK);
3280af22 5586 else if (*MARK == &PL_sv_undef)
748a9306 5587 a[i++] = 0;
301e8125 5588 else
2d8e6c8d 5589 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5590 if (i > 15)
5591 break;
5592 }
5593 switch (items) {
5594 default:
cea2e8a9 5595 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5596 case 0:
cea2e8a9 5597 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5598 case 1:
5599 retval = syscall(a[0]);
5600 break;
5601 case 2:
5602 retval = syscall(a[0],a[1]);
5603 break;
5604 case 3:
5605 retval = syscall(a[0],a[1],a[2]);
5606 break;
5607 case 4:
5608 retval = syscall(a[0],a[1],a[2],a[3]);
5609 break;
5610 case 5:
5611 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5612 break;
5613 case 6:
5614 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5615 break;
5616 case 7:
5617 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5618 break;
5619 case 8:
5620 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5621 break;
5622#ifdef atarist
5623 case 9:
5624 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5625 break;
5626 case 10:
5627 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5628 break;
5629 case 11:
5630 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5631 a[10]);
5632 break;
5633 case 12:
5634 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5635 a[10],a[11]);
5636 break;
5637 case 13:
5638 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5639 a[10],a[11],a[12]);
5640 break;
5641 case 14:
5642 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5643 a[10],a[11],a[12],a[13]);
5644 break;
5645#endif /* atarist */
5646 }
5647 SP = ORIGMARK;
5648 PUSHi(retval);
5649 RETURN;
5650#else
cea2e8a9 5651 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5652#endif
5653}
5654
ff68c719 5655#ifdef FCNTL_EMULATE_FLOCK
301e8125 5656
ff68c719 5657/* XXX Emulate flock() with fcntl().
5658 What's really needed is a good file locking module.
5659*/
5660
cea2e8a9
GS		 5661static int
5662fcntl_emulate_flock(int fd, int operation)
ff68c719 5663{
5664 struct flock flock;
301e8125 5665
ff68c719 5666 switch (operation & ~LOCK_NB) {
5667 case LOCK_SH:
5668 flock.l_type = F_RDLCK;
5669 break;
5670 case LOCK_EX:
5671 flock.l_type = F_WRLCK;
5672 break;
5673 case LOCK_UN:
5674 flock.l_type = F_UNLCK;
5675 break;
5676 default:
5677 errno = EINVAL;
5678 return -1;
5679 }
5680 flock.l_whence = SEEK_SET;
d9b3e12d 5681 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5682
ff68c719 5683 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5684}
5685
5686#endif /* FCNTL_EMULATE_FLOCK */
5687
5688#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5689
5690/* XXX Emulate flock() with lockf(). This is just to increase
5691 portability of scripts. The calls are not completely
5692 interchangeable. What's really needed is a good file
5693 locking module.
5694*/
5695
76c32331 5696/* The lockf() constants might have been defined in <unistd.h>.
5697 Unfortunately, <unistd.h> causes troubles on some mixed
5698 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5699
5700 Further, the lockf() constants aren't POSIX, so they might not be
5701 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5702 just stick in the SVID values and be done with it. Sigh.
5703*/
5704
5705# ifndef F_ULOCK
5706# define F_ULOCK 0 /* Unlock a previously locked region */
5707# endif
5708# ifndef F_LOCK
5709# define F_LOCK 1 /* Lock a region for exclusive use */
5710# endif
5711# ifndef F_TLOCK
5712# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5713# endif
5714# ifndef F_TEST
5715# define F_TEST 3 /* Test a region for other processes locks */
5716# endif
5717
cea2e8a9
GS		 5718static int
5719lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5720{
5721 int i;
84902520
TB		 5722 int save_errno;
5723 Off_t pos;
5724
5725 /* flock locks entire file so for lockf we need to do the same */
5726 save_errno = errno;
6ad3d225 5727 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5728 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5729 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5730 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5731 errno = save_errno;
5732
16d20bd9
AD		 5733 switch (operation) {
5734
5735 /* LOCK_SH - get a shared lock */
5736 case LOCK_SH:
5737 /* LOCK_EX - get an exclusive lock */
5738 case LOCK_EX:
5739 i = lockf (fd, F_LOCK, 0);
5740 break;
5741
5742 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5743 case LOCK_SH|LOCK_NB:
5744 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5745 case LOCK_EX|LOCK_NB:
5746 i = lockf (fd, F_TLOCK, 0);
5747 if (i == -1)
5748 if ((errno == EAGAIN) || (errno == EACCES))
5749 errno = EWOULDBLOCK;
5750 break;
5751
ff68c719 5752 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5753 case LOCK_UN:
ff68c719 5754 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5755 i = lockf (fd, F_ULOCK, 0);
5756 break;
5757
5758 /* Default - can't decipher operation */
5759 default:
5760 i = -1;
5761 errno = EINVAL;
5762 break;
5763 }
84902520
TB		 5764
5765 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5766 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5767
16d20bd9
AD		 5768 return (i);
5769}
ff68c719 5770
5771#endif /* LOCKF_EMULATE_FLOCK */
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