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[perl #30066] Memory leak in nested shared data structures in 5.8.4
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
b5f8cc5c 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
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
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
9cffb111
OS		 188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
5ff3f7a4
GS		 200#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201#undef PERL_EFF_ACCESS_W_OK
202#undef PERL_EFF_ACCESS_X_OK
203
204/* F_OK unused: if stat() cannot find it... */
205
206#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 208# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
211#endif
212
213#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 214# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 215# include <sys/security.h>
216# endif
c955f117
JH		 217# ifdef ACC_SELF
218 /* HP SecureWare */
219# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
222# else
223 /* SCO */
224# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
227# endif
5ff3f7a4
GS		 228#endif
229
230#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 231 /* AIX */
5ff3f7a4
GS		 232# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
235#endif
236
327c3667
GS		 237#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 240/* The Hard Way. */
327c3667 241STATIC int
7f4774ae 242S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 243{
5ff3f7a4
GS		 244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
248 int res;
249
146174a9 250 LOCK_CRED_MUTEX;
5ff3f7a4 251#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 252 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 253#else
254#ifdef HAS_SETREUID
255 if (setreuid(euid, ruid))
256#else
257#ifdef HAS_SETRESUID
258 if (setresuid(euid, ruid, (Uid_t)-1))
259#endif
260#endif
cea2e8a9 261 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 262#endif
263
264#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 265 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 266#else
267#ifdef HAS_SETREGID
268 if (setregid(egid, rgid))
269#else
270#ifdef HAS_SETRESGID
271 if (setresgid(egid, rgid, (Gid_t)-1))
272#endif
273#endif
cea2e8a9 274 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 275#endif
276
277 res = access(path, mode);
278
279#ifdef HAS_SETREUID
280 if (setreuid(ruid, euid))
281#else
282#ifdef HAS_SETRESUID
283 if (setresuid(ruid, euid, (Uid_t)-1))
284#endif
285#endif
cea2e8a9 286 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 287
288#ifdef HAS_SETREGID
289 if (setregid(rgid, egid))
290#else
291#ifdef HAS_SETRESGID
292 if (setresgid(rgid, egid, (Gid_t)-1))
293#endif
294#endif
cea2e8a9 295 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 296 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 297
298 return res;
299}
300# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
303#endif
304
305#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 306/* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
308 */
327c3667 309STATIC int
7f4774ae 310S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 311{
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);
7b102d90 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;
bf12611a 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
460c8493
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)) {
38af81ff
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))) {
35c1215d
NC		 841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
842 methname, *MARK);
6b05c17a
NIS		 843 }
844 ENTER;
e788e7d3 845 PUSHSTACKi(PERLSI_MAGIC);
e336de0d 846 PUSHMARK(SP);
eb160463 847 EXTEND(SP,(I32)items);
e336de0d
GS		 848 while (items--)
849 PUSHs(*MARK++);
850 PUTBACK;
864dbfa3 851 call_sv((SV*)GvCV(gv), G_SCALAR);
6b05c17a 852 }
a0d0e21e
LW		 853 SPAGAIN;
854
855 sv = TOPs;
d3acc0f7 856 POPSTACK;
a0d0e21e 857 if (sv_isobject(sv)) {
33c27489 858 sv_unmagic(varsv, how);
ae21d580 859 /* Croak if a self-tie on an aggregate is attempted. */
b881518d 860 if (varsv == SvRV(sv) &&
d87ebaca
YST		 861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
ae21d580
JH		 863 Perl_croak(aTHX_
864 "Self-ties of arrays and hashes are not supported");
d87ebaca 865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
a0d0e21e
LW		 866 }
867 LEAVE;
3280af22 868 SP = PL_stack_base + markoff;
a0d0e21e
LW		 869 PUSHs(sv);
870 RETURN;
871}
872
873PP(pp_untie)
874{
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
65eba18f
JH		 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 }
38193a09 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
ad517f75
MHM		 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
dc4c69d9
JH		 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);
dc4c69d9 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
146174a9 1259 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1260 PUSHFORMAT(cx);
f39bc417 1261 cx->blk_sub.retop = retop;
dd2155a4 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));
0bd0581c 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)) {
6e6ef6b2
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 1436 PUTBACK;
f39bc417 1437 return cx->blk_sub.retop;
a0d0e21e
LW		 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);
93189314 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)) {
6e6ef6b2
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 }
93189314 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);
1e54db1a 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))
6e6ef6b2 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))) {
6aa2f6a7
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 {
4de5f5ca
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;
090bf15b
SR		 2086 IO *io;
2087
d05c1ba0
JH		 2088 if (PL_op->op_flags & OPf_SPECIAL) {
2089 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2090
090bf15b
SR		 2091 do_ftruncate_gv:
2092 if (!GvIO(tmpgv))
2093 result = 0;
d05c1ba0 2094 else {
090bf15b
SR		 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
090bf15b 2105 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2106#else
090bf15b 2107 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2108#endif
090bf15b
SR		 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 */
090bf15b 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 */
090bf15b
SR		 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)
93189314 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);
93189314 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
6652bd42 2218#endif
a0d0e21e 2219
6652bd42 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;
93189314 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);
93189314 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;
460c8493
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;
460c8493
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;
460c8493
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);
93189314 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);
93189314 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);
93189314 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;
93d47a36
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);
93d47a36 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);
460c8493
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
93d47a36 2562 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2563 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2564#endif
381c1bae 2565#ifdef __SCO_VERSION__
93d47a36 2566 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2567#endif
ed79a026 2568
93d47a36 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);
93189314 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);
93189314 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);
93189314 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);
93189314 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
4a9d6100 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
fbb0b3b3
RGS		 2893/* This macro is used by the stacked filetest operators :
2894 * if the previous filetest failed, short-circuit and pass its value.
2895 * Else, discard it from the stack and continue. --rgs
2896 */
2897#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2898 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2899 else { (void)POPs; PUTBACK; } \
2900 }
2901
a0d0e21e
LW		 2902PP(pp_ftrread)
2903{
9cad6237 2904 I32 result;
2a3ff820 2905 dSP;
fbb0b3b3 2906 STACKED_FTEST_CHECK;
5ff3f7a4 2907#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2908 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2909 STRLEN n_a;
43b06338 2910 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2911 if (result == 0)
2912 RETPUSHYES;
2913 if (result < 0)
2914 RETPUSHUNDEF;
2915 RETPUSHNO;
22865c03
GS		 2916 }
2917 else
cea2e8a9 2918 result = my_stat();
5ff3f7a4 2919#else
cea2e8a9 2920 result = my_stat();
5ff3f7a4 2921#endif
22865c03 2922 SPAGAIN;
a0d0e21e
LW		 2923 if (result < 0)
2924 RETPUSHUNDEF;
3280af22 2925 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2926 RETPUSHYES;
2927 RETPUSHNO;
2928}
2929
2930PP(pp_ftrwrite)
2931{
9cad6237 2932 I32 result;
2a3ff820 2933 dSP;
fbb0b3b3 2934 STACKED_FTEST_CHECK;
5ff3f7a4 2935#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2937 STRLEN n_a;
43b06338 2938 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2939 if (result == 0)
2940 RETPUSHYES;
2941 if (result < 0)
2942 RETPUSHUNDEF;
2943 RETPUSHNO;
22865c03
GS		 2944 }
2945 else
cea2e8a9 2946 result = my_stat();
5ff3f7a4 2947#else
cea2e8a9 2948 result = my_stat();
5ff3f7a4 2949#endif
22865c03 2950 SPAGAIN;
a0d0e21e
LW		 2951 if (result < 0)
2952 RETPUSHUNDEF;
3280af22 2953 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2954 RETPUSHYES;
2955 RETPUSHNO;
2956}
2957
2958PP(pp_ftrexec)
2959{
9cad6237 2960 I32 result;
2a3ff820 2961 dSP;
fbb0b3b3 2962 STACKED_FTEST_CHECK;
5ff3f7a4 2963#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2964 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2965 STRLEN n_a;
43b06338 2966 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2967 if (result == 0)
2968 RETPUSHYES;
2969 if (result < 0)
2970 RETPUSHUNDEF;
2971 RETPUSHNO;
22865c03
GS		 2972 }
2973 else
cea2e8a9 2974 result = my_stat();
5ff3f7a4 2975#else
cea2e8a9 2976 result = my_stat();
5ff3f7a4 2977#endif
22865c03 2978 SPAGAIN;
a0d0e21e
LW		 2979 if (result < 0)
2980 RETPUSHUNDEF;
3280af22 2981 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 2982 RETPUSHYES;
2983 RETPUSHNO;
2984}
2985
2986PP(pp_fteread)
2987{
9cad6237 2988 I32 result;
2a3ff820 2989 dSP;
fbb0b3b3 2990 STACKED_FTEST_CHECK;
5ff3f7a4 2991#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 2992 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2993 STRLEN n_a;
43b06338 2994 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 2995 if (result == 0)
2996 RETPUSHYES;
2997 if (result < 0)
2998 RETPUSHUNDEF;
2999 RETPUSHNO;
22865c03
GS		 3000 }
3001 else
cea2e8a9 3002 result = my_stat();
5ff3f7a4 3003#else
cea2e8a9 3004 result = my_stat();
5ff3f7a4 3005#endif
22865c03 3006 SPAGAIN;
a0d0e21e
LW		 3007 if (result < 0)
3008 RETPUSHUNDEF;
3280af22 3009 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3010 RETPUSHYES;
3011 RETPUSHNO;
3012}
3013
3014PP(pp_ftewrite)
3015{
9cad6237 3016 I32 result;
2a3ff820 3017 dSP;
fbb0b3b3 3018 STACKED_FTEST_CHECK;
5ff3f7a4 3019#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3020 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3021 STRLEN n_a;
43b06338 3022 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3023 if (result == 0)
3024 RETPUSHYES;
3025 if (result < 0)
3026 RETPUSHUNDEF;
3027 RETPUSHNO;
22865c03
GS		 3028 }
3029 else
cea2e8a9 3030 result = my_stat();
5ff3f7a4 3031#else
cea2e8a9 3032 result = my_stat();
5ff3f7a4 3033#endif
22865c03 3034 SPAGAIN;
a0d0e21e
LW		 3035 if (result < 0)
3036 RETPUSHUNDEF;
3280af22 3037 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3038 RETPUSHYES;
3039 RETPUSHNO;
3040}
3041
3042PP(pp_fteexec)
3043{
9cad6237 3044 I32 result;
2a3ff820 3045 dSP;
fbb0b3b3 3046 STACKED_FTEST_CHECK;
5ff3f7a4 3047#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3048 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3049 STRLEN n_a;
43b06338 3050 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3051 if (result == 0)
3052 RETPUSHYES;
3053 if (result < 0)
3054 RETPUSHUNDEF;
3055 RETPUSHNO;
22865c03
GS		 3056 }
3057 else
cea2e8a9 3058 result = my_stat();
5ff3f7a4 3059#else
cea2e8a9 3060 result = my_stat();
5ff3f7a4 3061#endif
22865c03 3062 SPAGAIN;
a0d0e21e
LW		 3063 if (result < 0)
3064 RETPUSHUNDEF;
3280af22 3065 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3066 RETPUSHYES;
3067 RETPUSHNO;
3068}
3069
3070PP(pp_ftis)
3071{
fbb0b3b3 3072 I32 result;
2a3ff820 3073 dSP;
fbb0b3b3
RGS		 3074 STACKED_FTEST_CHECK;
3075 result = my_stat();
3076 SPAGAIN;
a0d0e21e
LW		 3077 if (result < 0)
3078 RETPUSHUNDEF;
3079 RETPUSHYES;
3080}
3081
3082PP(pp_fteowned)
3083{
cea2e8a9 3084 return pp_ftrowned();
a0d0e21e
LW		 3085}
3086
3087PP(pp_ftrowned)
3088{
fbb0b3b3 3089 I32 result;
2a3ff820 3090 dSP;
fbb0b3b3
RGS		 3091 STACKED_FTEST_CHECK;
3092 result = my_stat();
3093 SPAGAIN;
a0d0e21e
LW		 3094 if (result < 0)
3095 RETPUSHUNDEF;
146174a9
CB		 3096 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3097 PL_euid : PL_uid) )
a0d0e21e
LW		 3098 RETPUSHYES;
3099 RETPUSHNO;
3100}
3101
3102PP(pp_ftzero)
3103{
fbb0b3b3 3104 I32 result;
2a3ff820 3105 dSP;
fbb0b3b3
RGS		 3106 STACKED_FTEST_CHECK;
3107 result = my_stat();
3108 SPAGAIN;
a0d0e21e
LW		 3109 if (result < 0)
3110 RETPUSHUNDEF;
146174a9 3111 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3112 RETPUSHYES;
3113 RETPUSHNO;
3114}
3115
3116PP(pp_ftsize)
3117{
fbb0b3b3 3118 I32 result;
2a3ff820 3119 dSP; dTARGET;
fbb0b3b3
RGS		 3120 STACKED_FTEST_CHECK;
3121 result = my_stat();
3122 SPAGAIN;
a0d0e21e
LW		 3123 if (result < 0)
3124 RETPUSHUNDEF;
146174a9
CB		 3125#if Off_t_size > IVSIZE
3126 PUSHn(PL_statcache.st_size);
3127#else
3280af22 3128 PUSHi(PL_statcache.st_size);
146174a9 3129#endif
a0d0e21e
LW		 3130 RETURN;
3131}
3132
3133PP(pp_ftmtime)
3134{
fbb0b3b3 3135 I32 result;
2a3ff820 3136 dSP; dTARGET;
fbb0b3b3
RGS		 3137 STACKED_FTEST_CHECK;
3138 result = my_stat();
3139 SPAGAIN;
a0d0e21e
LW		 3140 if (result < 0)
3141 RETPUSHUNDEF;
a80d47c2 3142 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3143 RETURN;
3144}
3145
3146PP(pp_ftatime)
3147{
fbb0b3b3 3148 I32 result;
2a3ff820 3149 dSP; dTARGET;
fbb0b3b3
RGS		 3150 STACKED_FTEST_CHECK;
3151 result = my_stat();
3152 SPAGAIN;
a0d0e21e
LW		 3153 if (result < 0)
3154 RETPUSHUNDEF;
a80d47c2 3155 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3156 RETURN;
3157}
3158
3159PP(pp_ftctime)
3160{
fbb0b3b3 3161 I32 result;
2a3ff820 3162 dSP; dTARGET;
fbb0b3b3
RGS		 3163 STACKED_FTEST_CHECK;
3164 result = my_stat();
3165 SPAGAIN;
a0d0e21e
LW		 3166 if (result < 0)
3167 RETPUSHUNDEF;
a80d47c2 3168 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3169 RETURN;
3170}
3171
3172PP(pp_ftsock)
3173{
fbb0b3b3 3174 I32 result;
2a3ff820 3175 dSP;
fbb0b3b3
RGS		 3176 STACKED_FTEST_CHECK;
3177 result = my_stat();
3178 SPAGAIN;
a0d0e21e
LW		 3179 if (result < 0)
3180 RETPUSHUNDEF;
3280af22 3181 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3182 RETPUSHYES;
3183 RETPUSHNO;
3184}
3185
3186PP(pp_ftchr)
3187{
fbb0b3b3 3188 I32 result;
2a3ff820 3189 dSP;
fbb0b3b3
RGS		 3190 STACKED_FTEST_CHECK;
3191 result = my_stat();
3192 SPAGAIN;
a0d0e21e
LW		 3193 if (result < 0)
3194 RETPUSHUNDEF;
3280af22 3195 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3196 RETPUSHYES;
3197 RETPUSHNO;
3198}
3199
3200PP(pp_ftblk)
3201{
fbb0b3b3 3202 I32 result;
2a3ff820 3203 dSP;
fbb0b3b3
RGS		 3204 STACKED_FTEST_CHECK;
3205 result = my_stat();
3206 SPAGAIN;
a0d0e21e
LW		 3207 if (result < 0)
3208 RETPUSHUNDEF;
3280af22 3209 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3210 RETPUSHYES;
3211 RETPUSHNO;
3212}
3213
3214PP(pp_ftfile)
3215{
fbb0b3b3 3216 I32 result;
2a3ff820 3217 dSP;
fbb0b3b3
RGS		 3218 STACKED_FTEST_CHECK;
3219 result = my_stat();
3220 SPAGAIN;
a0d0e21e
LW		 3221 if (result < 0)
3222 RETPUSHUNDEF;
3280af22 3223 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3224 RETPUSHYES;
3225 RETPUSHNO;
3226}
3227
3228PP(pp_ftdir)
3229{
fbb0b3b3 3230 I32 result;
2a3ff820 3231 dSP;
fbb0b3b3
RGS		 3232 STACKED_FTEST_CHECK;
3233 result = my_stat();
3234 SPAGAIN;
a0d0e21e
LW		 3235 if (result < 0)
3236 RETPUSHUNDEF;
3280af22 3237 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3238 RETPUSHYES;
3239 RETPUSHNO;
3240}
3241
3242PP(pp_ftpipe)
3243{
fbb0b3b3 3244 I32 result;
2a3ff820 3245 dSP;
fbb0b3b3
RGS		 3246 STACKED_FTEST_CHECK;
3247 result = my_stat();
3248 SPAGAIN;
a0d0e21e
LW		 3249 if (result < 0)
3250 RETPUSHUNDEF;
3280af22 3251 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3252 RETPUSHYES;
3253 RETPUSHNO;
3254}
3255
3256PP(pp_ftlink)
3257{
9cad6237 3258 I32 result = my_lstat();
2a3ff820 3259 dSP;
a0d0e21e
LW		 3260 if (result < 0)
3261 RETPUSHUNDEF;
3280af22 3262 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3263 RETPUSHYES;
3264 RETPUSHNO;
3265}
3266
3267PP(pp_ftsuid)
3268{
39644a26 3269 dSP;
a0d0e21e 3270#ifdef S_ISUID
fbb0b3b3
RGS		 3271 I32 result;
3272 STACKED_FTEST_CHECK;
3273 result = my_stat();
a0d0e21e
LW		 3274 SPAGAIN;
3275 if (result < 0)
3276 RETPUSHUNDEF;
3280af22 3277 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3278 RETPUSHYES;
3279#endif
3280 RETPUSHNO;
3281}
3282
3283PP(pp_ftsgid)
3284{
39644a26 3285 dSP;
a0d0e21e 3286#ifdef S_ISGID
fbb0b3b3
RGS		 3287 I32 result;
3288 STACKED_FTEST_CHECK;
3289 result = my_stat();
a0d0e21e
LW		 3290 SPAGAIN;
3291 if (result < 0)
3292 RETPUSHUNDEF;
3280af22 3293 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3294 RETPUSHYES;
3295#endif
3296 RETPUSHNO;
3297}
3298
3299PP(pp_ftsvtx)
3300{
39644a26 3301 dSP;
a0d0e21e 3302#ifdef S_ISVTX
fbb0b3b3
RGS		 3303 I32 result;
3304 STACKED_FTEST_CHECK;
3305 result = my_stat();
a0d0e21e
LW		 3306 SPAGAIN;
3307 if (result < 0)
3308 RETPUSHUNDEF;
3280af22 3309 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3310 RETPUSHYES;
3311#endif
3312 RETPUSHNO;
3313}
3314
3315PP(pp_fttty)
3316{
39644a26 3317 dSP;
a0d0e21e
LW		 3318 int fd;
3319 GV *gv;
fb73857a 3320 char *tmps = Nullch;
2d8e6c8d 3321 STRLEN n_a;
fb73857a 3322
fbb0b3b3
RGS		 3323 STACKED_FTEST_CHECK;
3324
533c011a 3325 if (PL_op->op_flags & OPf_REF)
146174a9 3326 gv = cGVOP_gv;
fb73857a 3327 else if (isGV(TOPs))
3328 gv = (GV*)POPs;
3329 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3330 gv = (GV*)SvRV(POPs);
a0d0e21e 3331 else
2d8e6c8d 3332 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
fb73857a 3333
a0d0e21e 3334 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3335 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
fb73857a 3336 else if (tmps && isDIGIT(*tmps))
a0d0e21e
LW		 3337 fd = atoi(tmps);
3338 else
3339 RETPUSHUNDEF;
6ad3d225 3340 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3341 RETPUSHYES;
3342 RETPUSHNO;
3343}
3344
16d20bd9
AD		 3345#if defined(atarist) /* this will work with atariST. Configure will
3346 make guesses for other systems. */
3347# define FILE_base(f) ((f)->_base)
3348# define FILE_ptr(f) ((f)->_ptr)
3349# define FILE_cnt(f) ((f)->_cnt)
3350# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3351#endif
3352
3353PP(pp_fttext)
3354{
39644a26 3355 dSP;
a0d0e21e
LW		 3356 I32 i;
3357 I32 len;
3358 I32 odd = 0;
3359 STDCHAR tbuf[512];
3360 register STDCHAR *s;
3361 register IO *io;
5f05dabc 3362 register SV *sv;
3363 GV *gv;
2d8e6c8d 3364 STRLEN n_a;
146174a9 3365 PerlIO *fp;
a0d0e21e 3366
fbb0b3b3
RGS		 3367 STACKED_FTEST_CHECK;
3368
533c011a 3369 if (PL_op->op_flags & OPf_REF)
146174a9 3370 gv = cGVOP_gv;
5f05dabc 3371 else if (isGV(TOPs))
3372 gv = (GV*)POPs;
3373 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3374 gv = (GV*)SvRV(POPs);
3375 else
3376 gv = Nullgv;
3377
3378 if (gv) {
a0d0e21e 3379 EXTEND(SP, 1);
3280af22
NIS		 3380 if (gv == PL_defgv) {
3381 if (PL_statgv)
3382 io = GvIO(PL_statgv);
a0d0e21e 3383 else {
3280af22 3384 sv = PL_statname;
a0d0e21e
LW		 3385 goto really_filename;
3386 }
3387 }
3388 else {
3280af22
NIS		 3389 PL_statgv = gv;
3390 PL_laststatval = -1;
3391 sv_setpv(PL_statname, "");
3392 io = GvIO(PL_statgv);
a0d0e21e
LW		 3393 }
3394 if (io && IoIFP(io)) {
5f05dabc 3395 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3396 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3397 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3398 if (PL_laststatval < 0)
5f05dabc 3399 RETPUSHUNDEF;
9cbac4c7 3400 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3401 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3402 RETPUSHNO;
3403 else
3404 RETPUSHYES;
9cbac4c7 3405 }
a20bf0c3 3406 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3407 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3408 if (i != EOF)
760ac839 3409 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3410 }
a20bf0c3 3411 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3412 RETPUSHYES;
a20bf0c3
JH		 3413 len = PerlIO_get_bufsiz(IoIFP(io));
3414 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3415 /* sfio can have large buffers - limit to 512 */
3416 if (len > 512)
3417 len = 512;
a0d0e21e
LW		 3418 }
3419 else {
2dd78f96 3420 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3421 gv = cGVOP_gv;
2dd78f96 3422 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3423 }
93189314 3424 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3425 RETPUSHUNDEF;
3426 }
3427 }
3428 else {
3429 sv = POPs;
5f05dabc 3430 really_filename:
3280af22
NIS		 3431 PL_statgv = Nullgv;
3432 PL_laststatval = -1;
5c9aa243 3433 PL_laststype = OP_STAT;
2d8e6c8d 3434 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3435 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3436 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3437 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3438 RETPUSHUNDEF;
3439 }
146174a9
CB		 3440 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3441 if (PL_laststatval < 0) {
3442 (void)PerlIO_close(fp);
5f05dabc 3443 RETPUSHUNDEF;
146174a9 3444 }
60382766 3445 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3446 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3447 (void)PerlIO_close(fp);
a0d0e21e 3448 if (len <= 0) {
533c011a 3449 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3450 RETPUSHNO; /* special case NFS directories */
3451 RETPUSHYES; /* null file is anything */
3452 }
3453 s = tbuf;
3454 }
3455
3456 /* now scan s to look for textiness */
4633a7c4 3457 /* XXX ASCII dependent code */
a0d0e21e 3458
146174a9
CB		 3459#if defined(DOSISH) || defined(USEMYBINMODE)
3460 /* ignore trailing ^Z on short files */
3461 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3462 --len;
3463#endif
3464
a0d0e21e
LW		 3465 for (i = 0; i < len; i++, s++) {
3466 if (!*s) { /* null never allowed in text */
3467 odd += len;
3468 break;
3469 }
9d116dd7 3470#ifdef EBCDIC
301e8125 3471 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3472 odd++;
3473#else
146174a9
CB		 3474 else if (*s & 128) {
3475#ifdef USE_LOCALE
2de3dbcc 3476 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3477 continue;
3478#endif
3479 /* utf8 characters don't count as odd */
fd400ab9 3480 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3481 int ulen = UTF8SKIP(s);
3482 if (ulen < len - i) {
3483 int j;
3484 for (j = 1; j < ulen; j++) {
fd400ab9 3485 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3486 goto not_utf8;
3487 }
3488 --ulen; /* loop does extra increment */
3489 s += ulen;
3490 i += ulen;
3491 continue;
3492 }
3493 }
3494 not_utf8:
3495 odd++;
146174a9 3496 }
a0d0e21e
LW		 3497 else if (*s < 32 &&
3498 *s != '\n' && *s != '\r' && *s != '\b' &&
3499 *s != '\t' && *s != '\f' && *s != 27)
3500 odd++;
9d116dd7 3501#endif
a0d0e21e
LW		 3502 }
3503
533c011a 3504 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3505 RETPUSHNO;
3506 else
3507 RETPUSHYES;
3508}
3509
3510PP(pp_ftbinary)
3511{
cea2e8a9 3512 return pp_fttext();
a0d0e21e
LW		 3513}
3514
3515/* File calls. */
3516
3517PP(pp_chdir)
3518{
39644a26 3519 dSP; dTARGET;
a0d0e21e
LW		 3520 char *tmps;
3521 SV **svp;
2d8e6c8d 3522 STRLEN n_a;
a0d0e21e 3523
35ae6b54
MS		 3524 if( MAXARG == 1 )
3525 tmps = POPpx;
3526 else
3527 tmps = 0;
3528
3529 if( !tmps || !*tmps ) {
3530 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3531 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3532#ifdef VMS
35ae6b54 3533 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3534#endif
35ae6b54
MS		 3535 )
3536 {
3537 if( MAXARG == 1 )
9014280d 3538 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3539 tmps = SvPV(*svp, n_a);
3540 }
72f496dc 3541 else {
389ec635 3542 PUSHi(0);
b7ab37f8 3543 TAINT_PROPER("chdir");
389ec635
MS		 3544 RETURN;
3545 }
8ea155d1 3546 }
8ea155d1 3547
a0d0e21e 3548 TAINT_PROPER("chdir");
6ad3d225 3549 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3550#ifdef VMS
3551 /* Clear the DEFAULT element of ENV so we'll get the new value
3552 * in the future. */
6b88bc9c 3553 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3554#endif
a0d0e21e
LW		 3555 RETURN;
3556}
3557
3558PP(pp_chown)
3559{
a0d0e21e 3560#ifdef HAS_CHOWN
76ffd3b9
IZ		 3561 dSP; dMARK; dTARGET;
3562 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3563
a0d0e21e
LW		 3564 SP = MARK;
3565 PUSHi(value);
3566 RETURN;
3567#else
0322a713 3568 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3569#endif
3570}
3571
3572PP(pp_chroot)
3573{
a0d0e21e 3574#ifdef HAS_CHROOT
76ffd3b9 3575 dSP; dTARGET;
2d8e6c8d 3576 STRLEN n_a;
d05c1ba0 3577 char *tmps = POPpx;
a0d0e21e
LW		 3578 TAINT_PROPER("chroot");
3579 PUSHi( chroot(tmps) >= 0 );
3580 RETURN;
3581#else
cea2e8a9 3582 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3583#endif
3584}
3585
3586PP(pp_unlink)
3587{
39644a26 3588 dSP; dMARK; dTARGET;
a0d0e21e 3589 I32 value;
533c011a 3590 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3591 SP = MARK;
3592 PUSHi(value);
3593 RETURN;
3594}
3595
3596PP(pp_chmod)
3597{
39644a26 3598 dSP; dMARK; dTARGET;
a0d0e21e 3599 I32 value;
533c011a 3600 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3601 SP = MARK;
3602 PUSHi(value);
3603 RETURN;
3604}
3605
3606PP(pp_utime)
3607{
39644a26 3608 dSP; dMARK; dTARGET;
a0d0e21e 3609 I32 value;
533c011a 3610 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3611 SP = MARK;
3612 PUSHi(value);
3613 RETURN;
3614}
3615
3616PP(pp_rename)
3617{
39644a26 3618 dSP; dTARGET;
a0d0e21e 3619 int anum;
2d8e6c8d 3620 STRLEN n_a;
a0d0e21e 3621
2d8e6c8d
GS		 3622 char *tmps2 = POPpx;
3623 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3624 TAINT_PROPER("rename");
3625#ifdef HAS_RENAME
baed7233 3626 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3627#else
6b88bc9c 3628 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3629 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3630 anum = 1;
3631 else {
3654eb6c 3632 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3633 (void)UNLINK(tmps2);
3634 if (!(anum = link(tmps, tmps2)))
3635 anum = UNLINK(tmps);
3636 }
a0d0e21e
LW		 3637 }
3638#endif
3639 SETi( anum >= 0 );
3640 RETURN;
3641}
3642
3643PP(pp_link)
3644{
a0d0e21e 3645#ifdef HAS_LINK
370f6000 3646 dSP; dTARGET;
2d8e6c8d
GS		 3647 STRLEN n_a;
3648 char *tmps2 = POPpx;
3649 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3650 TAINT_PROPER("link");
146174a9 3651 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3652 RETURN;
a0d0e21e 3653#else
0322a713 3654 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3655#endif
a0d0e21e
LW		 3656}
3657
3658PP(pp_symlink)
3659{
a0d0e21e 3660#ifdef HAS_SYMLINK
9cad6237 3661 dSP; dTARGET;
2d8e6c8d
GS		 3662 STRLEN n_a;
3663 char *tmps2 = POPpx;
3664 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3665 TAINT_PROPER("symlink");
3666 SETi( symlink(tmps, tmps2) >= 0 );
3667 RETURN;
3668#else
cea2e8a9 3669 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3670#endif
3671}
3672
3673PP(pp_readlink)
3674{
76ffd3b9 3675 dSP;
a0d0e21e 3676#ifdef HAS_SYMLINK
76ffd3b9 3677 dTARGET;
a0d0e21e 3678 char *tmps;
46fc3d4c 3679 char buf[MAXPATHLEN];
a0d0e21e 3680 int len;
2d8e6c8d 3681 STRLEN n_a;
46fc3d4c 3682
fb73857a 3683#ifndef INCOMPLETE_TAINTS
3684 TAINT;
3685#endif
2d8e6c8d 3686 tmps = POPpx;
97dcea33 3687 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3688 EXTEND(SP, 1);
3689 if (len < 0)
3690 RETPUSHUNDEF;
3691 PUSHp(buf, len);
3692 RETURN;
3693#else
3694 EXTEND(SP, 1);
3695 RETSETUNDEF; /* just pretend it's a normal file */
3696#endif
3697}
3698
3699#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3700STATIC int
cea2e8a9 3701S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3702{
1e422769 3703 char *save_filename = filename;
3704 char *cmdline;
3705 char *s;
760ac839 3706 PerlIO *myfp;
1e422769 3707 int anum = 1;
a0d0e21e 3708
1e422769 3709 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3710 strcpy(cmdline, cmd);
3711 strcat(cmdline, " ");
3712 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3713 *s++ = '\\';
3714 *s++ = *filename++;
3715 }
3716 strcpy(s, " 2>&1");
6ad3d225 3717 myfp = PerlProc_popen(cmdline, "r");
1e422769 3718 Safefree(cmdline);
3719
a0d0e21e 3720 if (myfp) {
1e422769 3721 SV *tmpsv = sv_newmortal();
6b88bc9c 3722 /* Need to save/restore 'PL_rs' ?? */
760ac839 3723 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3724 (void)PerlProc_pclose(myfp);
a0d0e21e 3725 if (s != Nullch) {
1e422769 3726 int e;
3727 for (e = 1;
a0d0e21e 3728#ifdef HAS_SYS_ERRLIST
1e422769 3729 e <= sys_nerr
3730#endif
3731 ; e++)
3732 {
3733 /* you don't see this */
3734 char *errmsg =
3735#ifdef HAS_SYS_ERRLIST
3736 sys_errlist[e]
a0d0e21e 3737#else
1e422769 3738 strerror(e)
a0d0e21e 3739#endif
1e422769 3740 ;
3741 if (!errmsg)
3742 break;
3743 if (instr(s, errmsg)) {
3744 SETERRNO(e,0);
3745 return 0;
3746 }
a0d0e21e 3747 }
748a9306 3748 SETERRNO(0,0);
a0d0e21e
LW		 3749#ifndef EACCES
3750#define EACCES EPERM
3751#endif
1e422769 3752 if (instr(s, "cannot make"))
93189314 3753 SETERRNO(EEXIST,RMS_FEX);
1e422769 3754 else if (instr(s, "existing file"))
93189314 3755 SETERRNO(EEXIST,RMS_FEX);
1e422769 3756 else if (instr(s, "ile exists"))
93189314 3757 SETERRNO(EEXIST,RMS_FEX);
1e422769 3758 else if (instr(s, "non-exist"))
93189314 3759 SETERRNO(ENOENT,RMS_FNF);
1e422769 3760 else if (instr(s, "does not exist"))
93189314 3761 SETERRNO(ENOENT,RMS_FNF);
1e422769 3762 else if (instr(s, "not empty"))
93189314 3763 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3764 else if (instr(s, "cannot access"))
93189314 3765 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3766 else
93189314 3767 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3768 return 0;
3769 }
3770 else { /* some mkdirs return no failure indication */
6b88bc9c 3771 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3772 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3773 anum = !anum;
3774 if (anum)
748a9306 3775 SETERRNO(0,0);
a0d0e21e 3776 else
93189314 3777 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3778 }
3779 return anum;
3780 }
3781 else
3782 return 0;
3783}
3784#endif
3785
0c54f65b
RGS		 3786/* This macro removes trailing slashes from a directory name.
3787 * Different operating and file systems take differently to
3788 * trailing slashes. According to POSIX 1003.1 1996 Edition
3789 * any number of trailing slashes should be allowed.
3790 * Thusly we snip them away so that even non-conforming
3791 * systems are happy.
3792 * We should probably do this "filtering" for all
3793 * the functions that expect (potentially) directory names:
3794 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3795 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3796
3797#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3798 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3799 do { \
3800 (len)--; \
3801 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3802 (tmps) = savepvn((tmps), (len)); \
3803 (copy) = TRUE; \
3804 }
3805
a0d0e21e
LW		 3806PP(pp_mkdir)
3807{
39644a26 3808 dSP; dTARGET;
5a211162 3809 int mode;
a0d0e21e
LW		 3810#ifndef HAS_MKDIR
3811 int oldumask;
3812#endif
df25ddba 3813 STRLEN len;
5a211162 3814 char *tmps;
df25ddba 3815 bool copy = FALSE;
5a211162
GS		 3816
3817 if (MAXARG > 1)
3818 mode = POPi;
3819 else
3820 mode = 0777;
3821
0c54f65b 3822 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3823
3824 TAINT_PROPER("mkdir");
3825#ifdef HAS_MKDIR
6ad3d225 3826 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3827#else
3828 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3829 oldumask = PerlLIO_umask(0);
3830 PerlLIO_umask(oldumask);
3831 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3832#endif
df25ddba
JH		 3833 if (copy)
3834 Safefree(tmps);
a0d0e21e
LW		 3835 RETURN;
3836}
3837
3838PP(pp_rmdir)
3839{
39644a26 3840 dSP; dTARGET;
0c54f65b 3841 STRLEN len;
a0d0e21e 3842 char *tmps;
0c54f65b 3843 bool copy = FALSE;
a0d0e21e 3844
0c54f65b 3845 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3846 TAINT_PROPER("rmdir");
3847#ifdef HAS_RMDIR
0c54f65b 3848 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3849#else
0c54f65b 3850 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3851#endif
0c54f65b
RGS		 3852 if (copy)
3853 Safefree(tmps);
a0d0e21e
LW		 3854 RETURN;
3855}
3856
3857/* Directory calls. */
3858
3859PP(pp_open_dir)
3860{
a0d0e21e 3861#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3862 dSP;
2d8e6c8d
GS		 3863 STRLEN n_a;
3864 char *dirname = POPpx;
1e2c6ed7
JH		 3865 GV *gv = (GV*)POPs;
3866 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3867
3868 if (!io)
3869 goto nope;
3870
3871 if (IoDIRP(io))
6ad3d225
GS		 3872 PerlDir_close(IoDIRP(io));
3873 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3874 goto nope;
3875
3876 RETPUSHYES;
3877nope:
3878 if (!errno)
93189314 3879 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3880 RETPUSHUNDEF;
3881#else
cea2e8a9 3882 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3883#endif
3884}
3885
3886PP(pp_readdir)
3887{
34b7f128
AMS		 3888#if !defined(Direntry_t) || !defined(HAS_READDIR)
3889 DIE(aTHX_ PL_no_dir_func, "readdir");
3890#else
fd8cd3a3 3891#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3892 Direntry_t *readdir (DIR *);
a0d0e21e 3893#endif
34b7f128
AMS		 3894 dSP;
3895
3896 SV *sv;
3897 I32 gimme = GIMME;
3898 GV *gv = (GV *)POPs;
a0d0e21e 3899 register Direntry_t *dp;
a0d0e21e
LW		 3900 register IO *io = GvIOn(gv);
3901
3902 if (!io || !IoDIRP(io))
3903 goto nope;
3904
34b7f128
AMS		 3905 do {
3906 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3907 if (!dp)
3908 break;
a0d0e21e 3909#ifdef DIRNAMLEN
34b7f128 3910 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3911#else
34b7f128 3912 sv = newSVpv(dp->d_name, 0);
fb73857a 3913#endif
3914#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3915 if (!(IoFLAGS(io) & IOf_UNTAINT))
3916 SvTAINTED_on(sv);
a0d0e21e 3917#endif
34b7f128 3918 XPUSHs(sv_2mortal(sv));
a0d0e21e 3919 }
34b7f128
AMS		 3920 while (gimme == G_ARRAY);
3921
3922 if (!dp && gimme != G_ARRAY)
3923 goto nope;
3924
a0d0e21e
LW		 3925 RETURN;
3926
3927nope:
3928 if (!errno)
93189314 3929 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3930 if (GIMME == G_ARRAY)
3931 RETURN;
3932 else
3933 RETPUSHUNDEF;
a0d0e21e
LW		 3934#endif
3935}
3936
3937PP(pp_telldir)
3938{
a0d0e21e 3939#if defined(HAS_TELLDIR) || defined(telldir)
9cad6237 3940 dSP; dTARGET;
968dcd91
JH		 3941 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3942 /* XXX netbsd still seemed to.
3943 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3944 --JHI 1999-Feb-02 */
3945# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3946 long telldir (DIR *);
dfe9444c 3947# endif
a0d0e21e
LW		 3948 GV *gv = (GV*)POPs;
3949 register IO *io = GvIOn(gv);
3950
3951 if (!io || !IoDIRP(io))
3952 goto nope;
3953
6ad3d225 3954 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3955 RETURN;
3956nope:
3957 if (!errno)
93189314 3958 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3959 RETPUSHUNDEF;
3960#else
cea2e8a9 3961 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3962#endif
3963}
3964
3965PP(pp_seekdir)
3966{
a0d0e21e 3967#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3968 dSP;
a0d0e21e
LW		 3969 long along = POPl;
3970 GV *gv = (GV*)POPs;
3971 register IO *io = GvIOn(gv);
3972
3973 if (!io || !IoDIRP(io))
3974 goto nope;
3975
6ad3d225 3976 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3977
3978 RETPUSHYES;
3979nope:
3980 if (!errno)
93189314 3981 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3982 RETPUSHUNDEF;
3983#else
cea2e8a9 3984 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 3985#endif
3986}
3987
3988PP(pp_rewinddir)
3989{
a0d0e21e 3990#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 3991 dSP;
a0d0e21e
LW		 3992 GV *gv = (GV*)POPs;
3993 register IO *io = GvIOn(gv);
3994
3995 if (!io || !IoDIRP(io))
3996 goto nope;
3997
6ad3d225 3998 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 3999 RETPUSHYES;
4000nope:
4001 if (!errno)
93189314 4002 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4003 RETPUSHUNDEF;
4004#else
cea2e8a9 4005 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4006#endif
4007}
4008
4009PP(pp_closedir)
4010{
a0d0e21e 4011#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4012 dSP;
a0d0e21e
LW		 4013 GV *gv = (GV*)POPs;
4014 register IO *io = GvIOn(gv);
4015
4016 if (!io || !IoDIRP(io))
4017 goto nope;
4018
4019#ifdef VOID_CLOSEDIR
6ad3d225 4020 PerlDir_close(IoDIRP(io));
a0d0e21e 4021#else
6ad3d225 4022 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4023 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4024 goto nope;
748a9306 4025 }
a0d0e21e
LW		 4026#endif
4027 IoDIRP(io) = 0;
4028
4029 RETPUSHYES;
4030nope:
4031 if (!errno)
93189314 4032 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4033 RETPUSHUNDEF;
4034#else
cea2e8a9 4035 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4036#endif
4037}
4038
4039/* Process control. */
4040
4041PP(pp_fork)
4042{
44a8e56a 4043#ifdef HAS_FORK
39644a26 4044 dSP; dTARGET;
761237fe 4045 Pid_t childpid;
a0d0e21e
LW		 4046 GV *tmpgv;
4047
4048 EXTEND(SP, 1);
45bc9206 4049 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4050 childpid = PerlProc_fork();
a0d0e21e
LW		 4051 if (childpid < 0)
4052 RETSETUNDEF;
4053 if (!childpid) {
4054 /*SUPPRESS 560*/
306196c3
MS		 4055 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4056 SvREADONLY_off(GvSV(tmpgv));
146174a9 4057 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4058 SvREADONLY_on(GvSV(tmpgv));
4059 }
4d76a344
RGS		 4060#ifdef THREADS_HAVE_PIDS
4061 PL_ppid = (IV)getppid();
4062#endif
3280af22 4063 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4064 }
4065 PUSHi(childpid);
4066 RETURN;
4067#else
146174a9 4068# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4069 dSP; dTARGET;
146174a9
CB		 4070 Pid_t childpid;
4071
4072 EXTEND(SP, 1);
4073 PERL_FLUSHALL_FOR_CHILD;
4074 childpid = PerlProc_fork();
60fa28ff
GS		 4075 if (childpid == -1)
4076 RETSETUNDEF;
146174a9
CB		 4077 PUSHi(childpid);
4078 RETURN;
4079# else
0322a713 4080 DIE(aTHX_ PL_no_func, "fork");
146174a9 4081# endif
a0d0e21e
LW		 4082#endif
4083}
4084
4085PP(pp_wait)
4086{
301e8125 4087#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4088 dSP; dTARGET;
761237fe 4089 Pid_t childpid;
a0d0e21e 4090 int argflags;
a0d0e21e 4091
4ffa73a3
JH		 4092 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4093 childpid = wait4pid(-1, &argflags, 0);
4094 else {
4095 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4096 errno == EINTR) {
4097 PERL_ASYNC_CHECK();
4098 }
0a0ada86 4099 }
68a29c53
GS		 4100# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4101 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4102 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4103# else
f86702cc 4104 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4105# endif
44a8e56a 4106 XPUSHi(childpid);
a0d0e21e
LW		 4107 RETURN;
4108#else
0322a713 4109 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4110#endif
4111}
4112
4113PP(pp_waitpid)
4114{
301e8125 4115#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4116 dSP; dTARGET;
2ec0bfb3
SG		 4117 Pid_t pid;
4118 Pid_t result;
a0d0e21e
LW		 4119 int optype;
4120 int argflags;
a0d0e21e 4121
a0d0e21e 4122 optype = POPi;
2ec0bfb3 4123 pid = TOPi;
4ffa73a3 4124 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4125 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4126 else {
2ec0bfb3 4127 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4128 errno == EINTR) {
4129 PERL_ASYNC_CHECK();
4130 }
0a0ada86 4131 }
68a29c53
GS		 4132# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4133 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4134 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4135# else
2ec0bfb3 4136 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4137# endif
2ec0bfb3 4138 SETi(result);
a0d0e21e
LW		 4139 RETURN;
4140#else
0322a713 4141 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4142#endif
4143}
4144
4145PP(pp_system)
4146{
39644a26 4147 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4148 I32 value;
2d8e6c8d 4149 STRLEN n_a;
76ffd3b9 4150 int result;
e7766f89 4151 I32 did_pipes = 0;
a0d0e21e 4152
bbd7eb8a
RD		 4153 if (PL_tainting) {
4154 TAINT_ENV();
4155 while (++MARK <= SP) {
4156 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4157 if (PL_tainted)
bbd7eb8a
RD		 4158 break;
4159 }
4160 MARK = ORIGMARK;
5a445156 4161 TAINT_PROPER("system");
a0d0e21e 4162 }
45bc9206 4163 PERL_FLUSHALL_FOR_CHILD;
273b0206 4164#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4165 {
eb160463
GS		 4166 Pid_t childpid;
4167 int pp[2];
4168
4169 if (PerlProc_pipe(pp) >= 0)
4170 did_pipes = 1;
4171 while ((childpid = PerlProc_fork()) == -1) {
4172 if (errno != EAGAIN) {
4173 value = -1;
4174 SP = ORIGMARK;
4175 PUSHi(value);
4176 if (did_pipes) {
4177 PerlLIO_close(pp[0]);
4178 PerlLIO_close(pp[1]);
4179 }
4180 RETURN;
4181 }
4182 sleep(5);
4183 }
4184 if (childpid > 0) {
4185 Sigsave_t ihand,qhand; /* place to save signals during system() */
4186 int status;
4187
4188 if (did_pipes)
4189 PerlLIO_close(pp[1]);
64ca3a65 4190#ifndef PERL_MICRO
eb160463
GS		 4191 rsignal_save(SIGINT, SIG_IGN, &ihand);
4192 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4193#endif
eb160463
GS		 4194 do {
4195 result = wait4pid(childpid, &status, 0);
4196 } while (result == -1 && errno == EINTR);
64ca3a65 4197#ifndef PERL_MICRO
eb160463
GS		 4198 (void)rsignal_restore(SIGINT, &ihand);
4199 (void)rsignal_restore(SIGQUIT, &qhand);
4200#endif
4201 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4202 do_execfree(); /* free any memory child malloced on fork */
4203 SP = ORIGMARK;
4204 if (did_pipes) {
4205 int errkid;
4206 int n = 0, n1;
4207
4208 while (n < sizeof(int)) {
4209 n1 = PerlLIO_read(pp[0],
4210 (void*)(((char*)&errkid)+n),
4211 (sizeof(int)) - n);
4212 if (n1 <= 0)
4213 break;
4214 n += n1;
4215 }
4216 PerlLIO_close(pp[0]);
4217 if (n) { /* Error */
4218 if (n != sizeof(int))
4219 DIE(aTHX_ "panic: kid popen errno read");
4220 errno = errkid; /* Propagate errno from kid */
4221 STATUS_CURRENT = -1;
4222 }
4223 }
4224 PUSHi(STATUS_CURRENT);
4225 RETURN;
4226 }
4227 if (did_pipes) {
4228 PerlLIO_close(pp[0]);
d5a9bfb0 4229#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4230 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4231#endif
eb160463 4232 }
e0a1f643
JH		 4233 if (PL_op->op_flags & OPf_STACKED) {
4234 SV *really = *++MARK;
4235 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4236 }
4237 else if (SP - MARK != 1)
4238 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4239 else {
4240 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4241 }
4242 PerlProc__exit(-1);
d5a9bfb0 4243 }
c3293030 4244#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4245 PL_statusvalue = 0;
4246 result = 0;
911d147d 4247 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4248 SV *really = *++MARK;
622913ab 4249# if defined(WIN32) || defined(OS2)
54725af6
GS		 4250 value = (I32)do_aspawn(really, MARK, SP);
4251# else
c5be433b 4252 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4253# endif
a0d0e21e 4254 }
54725af6 4255 else if (SP - MARK != 1) {
622913ab 4256# if defined(WIN32) || defined(OS2)
54725af6
GS		 4257 value = (I32)do_aspawn(Nullsv, MARK, SP);
4258# else
c5be433b 4259 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4260# endif
4261 }
a0d0e21e 4262 else {
c5be433b 4263 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4264 }
922b1888
GS		 4265 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4266 result = 1;
f86702cc 4267 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4268 do_execfree();
4269 SP = ORIGMARK;
922b1888 4270 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4271#endif /* !FORK or VMS */
4272 RETURN;
4273}
4274
4275PP(pp_exec)
4276{
39644a26 4277 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4278 I32 value;
2d8e6c8d 4279 STRLEN n_a;
a0d0e21e 4280
bbd7eb8a
RD		 4281 if (PL_tainting) {
4282 TAINT_ENV();
4283 while (++MARK <= SP) {
4284 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4285 if (PL_tainted)
bbd7eb8a
RD		 4286 break;
4287 }
4288 MARK = ORIGMARK;
5a445156 4289 TAINT_PROPER("exec");
bbd7eb8a 4290 }
45bc9206 4291 PERL_FLUSHALL_FOR_CHILD;
533c011a 4292 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4293 SV *really = *++MARK;
4294 value = (I32)do_aexec(really, MARK, SP);
4295 }
4296 else if (SP - MARK != 1)
4297#ifdef VMS
4298 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4299#else
092bebab
JH		 4300# ifdef __OPEN_VM
4301 {
c5be433b 4302 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4303 value = 0;
4304 }
4305# else
a0d0e21e 4306 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4307# endif
a0d0e21e
LW		 4308#endif
4309 else {
a0d0e21e 4310#ifdef VMS
2d8e6c8d 4311 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4312#else
092bebab 4313# ifdef __OPEN_VM
c5be433b 4314 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4315 value = 0;
4316# else
2d8e6c8d 4317 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4318# endif
a0d0e21e
LW		 4319#endif
4320 }
146174a9 4321
a0d0e21e
LW		 4322 SP = ORIGMARK;
4323 PUSHi(value);
4324 RETURN;
4325}
4326
4327PP(pp_kill)
4328{
9cad6237 4329#ifdef HAS_KILL
39644a26 4330 dSP; dMARK; dTARGET;
a0d0e21e 4331 I32 value;
533c011a 4332 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4333 SP = MARK;
4334 PUSHi(value);
4335 RETURN;
4336#else
0322a713 4337 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4338#endif
4339}
4340
4341PP(pp_getppid)
4342{
4343#ifdef HAS_GETPPID
39644a26 4344 dSP; dTARGET;
4d76a344
RGS		 4345# ifdef THREADS_HAVE_PIDS
4346 XPUSHi( PL_ppid );
4347# else
a0d0e21e 4348 XPUSHi( getppid() );
4d76a344 4349# endif
a0d0e21e
LW		 4350 RETURN;
4351#else
cea2e8a9 4352 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4353#endif
4354}
4355
4356PP(pp_getpgrp)
4357{
4358#ifdef HAS_GETPGRP
39644a26 4359 dSP; dTARGET;
d8a83dd3 4360 Pid_t pid;
9853a804 4361 Pid_t pgrp;
a0d0e21e
LW		 4362
4363 if (MAXARG < 1)
4364 pid = 0;
4365 else
4366 pid = SvIVx(POPs);
c3293030 4367#ifdef BSD_GETPGRP
9853a804 4368 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4369#else
146174a9 4370 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4371 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4372 pgrp = getpgrp();
a0d0e21e 4373#endif
9853a804 4374 XPUSHi(pgrp);
a0d0e21e
LW		 4375 RETURN;
4376#else
cea2e8a9 4377 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4378#endif
4379}
4380
4381PP(pp_setpgrp)
4382{
4383#ifdef HAS_SETPGRP
39644a26 4384 dSP; dTARGET;
d8a83dd3
JH		 4385 Pid_t pgrp;
4386 Pid_t pid;
a0d0e21e
LW		 4387 if (MAXARG < 2) {
4388 pgrp = 0;
4389 pid = 0;
4390 }
4391 else {
4392 pgrp = POPi;
4393 pid = TOPi;
4394 }
4395
4396 TAINT_PROPER("setpgrp");
c3293030
IZ		 4397#ifdef BSD_SETPGRP
4398 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4399#else
146174a9
CB		 4400 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4401 || (pid != 0 && pid != PerlProc_getpid()))
4402 {
4403 DIE(aTHX_ "setpgrp can't take arguments");
4404 }
a0d0e21e
LW		 4405 SETi( setpgrp() >= 0 );
4406#endif /* USE_BSDPGRP */
4407 RETURN;
4408#else
cea2e8a9 4409 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4410#endif
4411}
4412
4413PP(pp_getpriority)
4414{
a0d0e21e 4415#ifdef HAS_GETPRIORITY
9cad6237 4416 dSP; dTARGET;
d05c1ba0
JH		 4417 int who = POPi;
4418 int which = TOPi;
a0d0e21e
LW		 4419 SETi( getpriority(which, who) );
4420 RETURN;
4421#else
cea2e8a9 4422 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4423#endif
4424}
4425
4426PP(pp_setpriority)
4427{
a0d0e21e 4428#ifdef HAS_SETPRIORITY
9cad6237 4429 dSP; dTARGET;
d05c1ba0
JH		 4430 int niceval = POPi;
4431 int who = POPi;
4432 int which = TOPi;
a0d0e21e
LW		 4433 TAINT_PROPER("setpriority");
4434 SETi( setpriority(which, who, niceval) >= 0 );
4435 RETURN;
4436#else
cea2e8a9 4437 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4438#endif
4439}
4440
4441/* Time calls. */
4442
4443PP(pp_time)
4444{
39644a26 4445 dSP; dTARGET;
cbdc8872 4446#ifdef BIG_TIME
4447 XPUSHn( time(Null(Time_t*)) );
4448#else
a0d0e21e 4449 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4450#endif
a0d0e21e
LW		 4451 RETURN;
4452}
4453
a0d0e21e
LW		 4454PP(pp_tms)
4455{
9cad6237 4456#ifdef HAS_TIMES
39644a26 4457 dSP;
a0d0e21e 4458 EXTEND(SP, 4);
a0d0e21e 4459#ifndef VMS
3280af22 4460 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4461#else
6b88bc9c 4462 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4463 /* struct tms, though same data */
4464 /* is returned. */
a0d0e21e
LW		 4465#endif
4466
5311654c 4467 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4468 if (GIMME == G_ARRAY) {
5311654c
JH		 4469 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4470 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4471 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4472 }
4473 RETURN;
9cad6237 4474#else
2f42fcb0
JH		 4475# ifdef PERL_MICRO
4476 dSP;
4477 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4478 EXTEND(SP, 4);
4479 if (GIMME == G_ARRAY) {
4480 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4481 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4482 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4483 }
4484 RETURN;
4485# else
9cad6237 4486 DIE(aTHX_ "times not implemented");
2f42fcb0 4487# endif
55497cff 4488#endif /* HAS_TIMES */
a0d0e21e
LW		 4489}
4490
4491PP(pp_localtime)
4492{
cea2e8a9 4493 return pp_gmtime();
a0d0e21e
LW		 4494}
4495
4496PP(pp_gmtime)
4497{
39644a26 4498 dSP;
a0d0e21e
LW		 4499 Time_t when;
4500 struct tm *tmbuf;
4501 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4502 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4503 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4504
4505 if (MAXARG < 1)
4506 (void)time(&when);
4507 else
cbdc8872 4508#ifdef BIG_TIME
4509 when = (Time_t)SvNVx(POPs);
4510#else
a0d0e21e 4511 when = (Time_t)SvIVx(POPs);
cbdc8872 4512#endif
a0d0e21e 4513
533c011a 4514 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4515 tmbuf = localtime(&when);
4516 else
4517 tmbuf = gmtime(&when);
4518
a0d0e21e 4519 if (GIMME != G_ARRAY) {
46fc3d4c 4520 SV *tsv;
9a5ff6d9
AB		 4521 EXTEND(SP, 1);
4522 EXTEND_MORTAL(1);
a0d0e21e
LW		 4523 if (!tmbuf)
4524 RETPUSHUNDEF;
be28567c 4525 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4526 dayname[tmbuf->tm_wday],
4527 monname[tmbuf->tm_mon],
be28567c
GS		 4528 tmbuf->tm_mday,
4529 tmbuf->tm_hour,
4530 tmbuf->tm_min,
4531 tmbuf->tm_sec,
4532 tmbuf->tm_year + 1900);
46fc3d4c 4533 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4534 }
4535 else if (tmbuf) {
9a5ff6d9
AB		 4536 EXTEND(SP, 9);
4537 EXTEND_MORTAL(9);
4538 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4539 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4540 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4541 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4542 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4543 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4544 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4545 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4546 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4547 }
4548 RETURN;
4549}
4550
4551PP(pp_alarm)
4552{
9cad6237 4553#ifdef HAS_ALARM
39644a26 4554 dSP; dTARGET;
a0d0e21e 4555 int anum;
a0d0e21e
LW		 4556 anum = POPi;
4557 anum = alarm((unsigned int)anum);
4558 EXTEND(SP, 1);
4559 if (anum < 0)
4560 RETPUSHUNDEF;
c6419e06 4561 PUSHi(anum);
a0d0e21e
LW		 4562 RETURN;
4563#else
0322a713 4564 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4565#endif
4566}
4567
4568PP(pp_sleep)
4569{
39644a26 4570 dSP; dTARGET;
a0d0e21e
LW		 4571 I32 duration;
4572 Time_t lasttime;
4573 Time_t when;
4574
4575 (void)time(&lasttime);
4576 if (MAXARG < 1)
76e3520e 4577 PerlProc_pause();
a0d0e21e
LW		 4578 else {
4579 duration = POPi;
76e3520e 4580 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4581 }
4582 (void)time(&when);
4583 XPUSHi(when - lasttime);
4584 RETURN;
4585}
4586
4587/* Shared memory. */
4588
4589PP(pp_shmget)
4590{
cea2e8a9 4591 return pp_semget();
a0d0e21e
LW		 4592}
4593
4594PP(pp_shmctl)
4595{
cea2e8a9 4596 return pp_semctl();
a0d0e21e
LW		 4597}
4598
4599PP(pp_shmread)
4600{
cea2e8a9 4601 return pp_shmwrite();
a0d0e21e
LW		 4602}
4603
4604PP(pp_shmwrite)
4605{
4606#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4607 dSP; dMARK; dTARGET;
533c011a 4608 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4609 SP = MARK;
4610 PUSHi(value);
4611 RETURN;
4612#else
cea2e8a9 4613 return pp_semget();
a0d0e21e
LW		 4614#endif
4615}
4616
4617/* Message passing. */
4618
4619PP(pp_msgget)
4620{
cea2e8a9 4621 return pp_semget();
a0d0e21e
LW		 4622}
4623
4624PP(pp_msgctl)
4625{
cea2e8a9 4626 return pp_semctl();
a0d0e21e
LW		 4627}
4628
4629PP(pp_msgsnd)
4630{
4631#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4632 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4633 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4634 SP = MARK;
4635 PUSHi(value);
4636 RETURN;
4637#else
cea2e8a9 4638 return pp_semget();
a0d0e21e
LW		 4639#endif
4640}
4641
4642PP(pp_msgrcv)
4643{
4644#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4645 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4646 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4647 SP = MARK;
4648 PUSHi(value);
4649 RETURN;
4650#else
cea2e8a9 4651 return pp_semget();
a0d0e21e
LW		 4652#endif
4653}
4654
4655/* Semaphores. */
4656
4657PP(pp_semget)
4658{
4659#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4660 dSP; dMARK; dTARGET;
533c011a 4661 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4662 SP = MARK;
4663 if (anum == -1)
4664 RETPUSHUNDEF;
4665 PUSHi(anum);
4666 RETURN;
4667#else
cea2e8a9 4668 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4669#endif
4670}
4671
4672PP(pp_semctl)
4673{
4674#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4675 dSP; dMARK; dTARGET;
533c011a 4676 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4677 SP = MARK;
4678 if (anum == -1)
4679 RETSETUNDEF;
4680 if (anum != 0) {
4681 PUSHi(anum);
4682 }
4683 else {
8903cb82 4684 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4685 }
4686 RETURN;
4687#else
cea2e8a9 4688 return pp_semget();
a0d0e21e
LW		 4689#endif
4690}
4691
4692PP(pp_semop)
4693{
4694#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4695 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4696 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4697 SP = MARK;
4698 PUSHi(value);
4699 RETURN;
4700#else
cea2e8a9 4701 return pp_semget();
a0d0e21e
LW		 4702#endif
4703}
4704
4705/* Get system info. */
4706
4707PP(pp_ghbyname)
4708{
693762b4 4709#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4710 return pp_ghostent();
a0d0e21e 4711#else
cea2e8a9 4712 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4713#endif
4714}
4715
4716PP(pp_ghbyaddr)
4717{
693762b4 4718#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4719 return pp_ghostent();
a0d0e21e 4720#else
cea2e8a9 4721 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4722#endif
4723}
4724
4725PP(pp_ghostent)
4726{
693762b4 4727#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4728 dSP;
533c011a 4729 I32 which = PL_op->op_type;
a0d0e21e
LW		 4730 register char **elem;
4731 register SV *sv;
dc45a647 4732#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4733 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4734 struct hostent *gethostbyname(Netdb_name_t);
4735 struct hostent *gethostent(void);
a0d0e21e
LW		 4736#endif
4737 struct hostent *hent;
4738 unsigned long len;
2d8e6c8d 4739 STRLEN n_a;
a0d0e21e
LW		 4740
4741 EXTEND(SP, 10);
edd309b7 4742 if (which == OP_GHBYNAME) {
dc45a647 4743#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4744 char* name = POPpbytex;
4745 hent = PerlSock_gethostbyname(name);
dc45a647 4746#else
cea2e8a9 4747 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4748#endif
edd309b7 4749 }
a0d0e21e 4750 else if (which == OP_GHBYADDR) {
dc45a647 4751#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4752 int addrtype = POPi;
748a9306 4753 SV *addrsv = POPs;
a0d0e21e 4754 STRLEN addrlen;
595ae481 4755 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4756
4599a1de 4757 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4758#else
cea2e8a9 4759 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4760#endif
a0d0e21e
LW		 4761 }
4762 else
4763#ifdef HAS_GETHOSTENT
6ad3d225 4764 hent = PerlSock_gethostent();
a0d0e21e 4765#else
cea2e8a9 4766 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4767#endif
4768
4769#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4770 if (!hent) {
4771#ifdef USE_REENTRANT_API
4772# ifdef USE_GETHOSTENT_ERRNO
4773 h_errno = PL_reentrant_buffer->_gethostent_errno;
4774# endif
4775#endif
4776 STATUS_NATIVE_SET(h_errno);
4777 }
a0d0e21e
LW		 4778#endif
4779
4780 if (GIMME != G_ARRAY) {
4781 PUSHs(sv = sv_newmortal());
4782 if (hent) {
4783 if (which == OP_GHBYNAME) {
fd0af264 4784 if (hent->h_addr)
4785 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4786 }
4787 else
4788 sv_setpv(sv, (char*)hent->h_name);
4789 }
4790 RETURN;
4791 }
4792
4793 if (hent) {
3280af22 4794 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4795 sv_setpv(sv, (char*)hent->h_name);
3280af22 4796 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4797 for (elem = hent->h_aliases; elem && *elem; elem++) {
4798 sv_catpv(sv, *elem);
4799 if (elem[1])
4800 sv_catpvn(sv, " ", 1);
4801 }
3280af22 4802 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4803 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4804 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4805 len = hent->h_length;
1e422769 4806 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4807#ifdef h_addr
4808 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4809 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4810 sv_setpvn(sv, *elem, len);
4811 }
4812#else
6b88bc9c 4813 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4814 if (hent->h_addr)
4815 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4816#endif /* h_addr */
4817 }
4818 RETURN;
4819#else
cea2e8a9 4820 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4821#endif
4822}
4823
4824PP(pp_gnbyname)
4825{
693762b4 4826#ifdef HAS_GETNETBYNAME
cea2e8a9 4827 return pp_gnetent();
a0d0e21e 4828#else
cea2e8a9 4829 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4830#endif
4831}
4832
4833PP(pp_gnbyaddr)
4834{
693762b4 4835#ifdef HAS_GETNETBYADDR
cea2e8a9 4836 return pp_gnetent();
a0d0e21e 4837#else
cea2e8a9 4838 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4839#endif
4840}
4841
4842PP(pp_gnetent)
4843{
693762b4 4844#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4845 dSP;
533c011a 4846 I32 which = PL_op->op_type;
a0d0e21e
LW		 4847 register char **elem;
4848 register SV *sv;
dc45a647 4849#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4850 struct netent *getnetbyaddr(Netdb_net_t, int);
4851 struct netent *getnetbyname(Netdb_name_t);
4852 struct netent *getnetent(void);
8ac85365 4853#endif
a0d0e21e 4854 struct netent *nent;
2d8e6c8d 4855 STRLEN n_a;
a0d0e21e 4856
edd309b7 4857 if (which == OP_GNBYNAME){
dc45a647 4858#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4859 char *name = POPpbytex;
4860 nent = PerlSock_getnetbyname(name);
dc45a647 4861#else
cea2e8a9 4862 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4863#endif
edd309b7 4864 }
a0d0e21e 4865 else if (which == OP_GNBYADDR) {
dc45a647 4866#ifdef HAS_GETNETBYADDR
a0d0e21e 4867 int addrtype = POPi;
3bb7c1b4 4868 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4869 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4870#else
cea2e8a9 4871 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4872#endif
a0d0e21e
LW		 4873 }
4874 else
dc45a647 4875#ifdef HAS_GETNETENT
76e3520e 4876 nent = PerlSock_getnetent();
dc45a647 4877#else
cea2e8a9 4878 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4879#endif
a0d0e21e 4880
10bc17b6
JH		 4881#ifdef HOST_NOT_FOUND
4882 if (!nent) {
4883#ifdef USE_REENTRANT_API
4884# ifdef USE_GETNETENT_ERRNO
4885 h_errno = PL_reentrant_buffer->_getnetent_errno;
4886# endif
4887#endif
4888 STATUS_NATIVE_SET(h_errno);
4889 }
4890#endif
4891
a0d0e21e
LW		 4892 EXTEND(SP, 4);
4893 if (GIMME != G_ARRAY) {
4894 PUSHs(sv = sv_newmortal());
4895 if (nent) {
4896 if (which == OP_GNBYNAME)
1e422769 4897 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4898 else
4899 sv_setpv(sv, nent->n_name);
4900 }
4901 RETURN;
4902 }
4903
4904 if (nent) {
3280af22 4905 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4906 sv_setpv(sv, nent->n_name);
3280af22 4907 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4908 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4909 sv_catpv(sv, *elem);
4910 if (elem[1])
4911 sv_catpvn(sv, " ", 1);
4912 }
3280af22 4913 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4914 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4915 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4916 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4917 }
4918
4919 RETURN;
4920#else
cea2e8a9 4921 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4922#endif
4923}
4924
4925PP(pp_gpbyname)
4926{
693762b4 4927#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4928 return pp_gprotoent();
a0d0e21e 4929#else
cea2e8a9 4930 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4931#endif
4932}
4933
4934PP(pp_gpbynumber)
4935{
693762b4 4936#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4937 return pp_gprotoent();
a0d0e21e 4938#else
cea2e8a9 4939 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4940#endif
4941}
4942
4943PP(pp_gprotoent)
4944{
693762b4 4945#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4946 dSP;
533c011a 4947 I32 which = PL_op->op_type;
a0d0e21e 4948 register char **elem;
301e8125 4949 register SV *sv;
dc45a647 4950#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4951 struct protoent *getprotobyname(Netdb_name_t);
4952 struct protoent *getprotobynumber(int);
4953 struct protoent *getprotoent(void);
8ac85365 4954#endif
a0d0e21e 4955 struct protoent *pent;
2d8e6c8d 4956 STRLEN n_a;
a0d0e21e 4957
edd309b7 4958 if (which == OP_GPBYNAME) {
e5c9fcd0 4959#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4960 char* name = POPpbytex;
4961 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4962#else
cea2e8a9 4963 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4964#endif
edd309b7
JH		 4965 }
4966 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4967#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4968 int number = POPi;
4969 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4970#else
edd309b7 4971 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4972#endif
edd309b7 4973 }
a0d0e21e 4974 else
e5c9fcd0 4975#ifdef HAS_GETPROTOENT
6ad3d225 4976 pent = PerlSock_getprotoent();
e5c9fcd0 4977#else
cea2e8a9 4978 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4979#endif
a0d0e21e
LW		 4980
4981 EXTEND(SP, 3);
4982 if (GIMME != G_ARRAY) {
4983 PUSHs(sv = sv_newmortal());
4984 if (pent) {
4985 if (which == OP_GPBYNAME)
1e422769 4986 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 4987 else
4988 sv_setpv(sv, pent->p_name);
4989 }
4990 RETURN;
4991 }
4992
4993 if (pent) {
3280af22 4994 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4995 sv_setpv(sv, pent->p_name);
3280af22 4996 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4997 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4998 sv_catpv(sv, *elem);
4999 if (elem[1])
5000 sv_catpvn(sv, " ", 1);
5001 }
3280af22 5002 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5003 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5004 }
5005
5006 RETURN;
5007#else
cea2e8a9 5008 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5009#endif
5010}
5011
5012PP(pp_gsbyname)
5013{
9ec75305 5014#ifdef HAS_GETSERVBYNAME
cea2e8a9 5015 return pp_gservent();
a0d0e21e 5016#else
cea2e8a9 5017 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5018#endif
5019}
5020
5021PP(pp_gsbyport)
5022{
9ec75305 5023#ifdef HAS_GETSERVBYPORT
cea2e8a9 5024 return pp_gservent();
a0d0e21e 5025#else
cea2e8a9 5026 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5027#endif
5028}
5029
5030PP(pp_gservent)
5031{
693762b4 5032#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5033 dSP;
533c011a 5034 I32 which = PL_op->op_type;
a0d0e21e
LW		 5035 register char **elem;
5036 register SV *sv;
dc45a647 5037#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5038 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5039 struct servent *getservbyport(int, Netdb_name_t);
5040 struct servent *getservent(void);
8ac85365 5041#endif
a0d0e21e 5042 struct servent *sent;
2d8e6c8d 5043 STRLEN n_a;
a0d0e21e
LW		 5044
5045 if (which == OP_GSBYNAME) {
dc45a647 5046#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5047 char *proto = POPpbytex;
5048 char *name = POPpbytex;
a0d0e21e
LW		 5049
5050 if (proto && !*proto)
5051 proto = Nullch;
5052
6ad3d225 5053 sent = PerlSock_getservbyname(name, proto);
dc45a647 5054#else
cea2e8a9 5055 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5056#endif
a0d0e21e
LW		 5057 }
5058 else if (which == OP_GSBYPORT) {
dc45a647 5059#ifdef HAS_GETSERVBYPORT
42e0c139 5060 char *proto = POPpbytex;
eb160463 5061 unsigned short port = (unsigned short)POPu;
a0d0e21e 5062
2b872cca
SR		 5063 if (proto && !*proto)
5064 proto = Nullch;
5065
36477c24 5066#ifdef HAS_HTONS
6ad3d225 5067 port = PerlSock_htons(port);
36477c24 5068#endif
6ad3d225 5069 sent = PerlSock_getservbyport(port, proto);
dc45a647 5070#else
cea2e8a9 5071 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5072#endif
a0d0e21e
LW		 5073 }
5074 else
e5c9fcd0 5075#ifdef HAS_GETSERVENT
6ad3d225 5076 sent = PerlSock_getservent();
e5c9fcd0 5077#else
cea2e8a9 5078 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5079#endif
a0d0e21e
LW		 5080
5081 EXTEND(SP, 4);
5082 if (GIMME != G_ARRAY) {
5083 PUSHs(sv = sv_newmortal());
5084 if (sent) {
5085 if (which == OP_GSBYNAME) {
5086#ifdef HAS_NTOHS
6ad3d225 5087 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5088#else
1e422769 5089 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5090#endif
5091 }
5092 else
5093 sv_setpv(sv, sent->s_name);
5094 }
5095 RETURN;
5096 }
5097
5098 if (sent) {
3280af22 5099 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5100 sv_setpv(sv, sent->s_name);
3280af22 5101 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5102 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5103 sv_catpv(sv, *elem);
5104 if (elem[1])
5105 sv_catpvn(sv, " ", 1);
5106 }
3280af22 5107 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5108#ifdef HAS_NTOHS
76e3520e 5109 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5110#else
1e422769 5111 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5112#endif
3280af22 5113 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5114 sv_setpv(sv, sent->s_proto);
5115 }
5116
5117 RETURN;
5118#else
cea2e8a9 5119 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5120#endif
5121}
5122
5123PP(pp_shostent)
5124{
693762b4 5125#ifdef HAS_SETHOSTENT
9cad6237 5126 dSP;
76e3520e 5127 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5128 RETSETYES;
5129#else
cea2e8a9 5130 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5131#endif
5132}
5133
5134PP(pp_snetent)
5135{
693762b4 5136#ifdef HAS_SETNETENT
9cad6237 5137 dSP;
76e3520e 5138 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5139 RETSETYES;
5140#else
cea2e8a9 5141 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5142#endif
5143}
5144
5145PP(pp_sprotoent)
5146{
693762b4 5147#ifdef HAS_SETPROTOENT
9cad6237 5148 dSP;
76e3520e 5149 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5150 RETSETYES;
5151#else
cea2e8a9 5152 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5153#endif
5154}
5155
5156PP(pp_sservent)
5157{
693762b4 5158#ifdef HAS_SETSERVENT
9cad6237 5159 dSP;
76e3520e 5160 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5161 RETSETYES;
5162#else
cea2e8a9 5163 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5164#endif
5165}
5166
5167PP(pp_ehostent)
5168{
693762b4 5169#ifdef HAS_ENDHOSTENT
9cad6237 5170 dSP;
76e3520e 5171 PerlSock_endhostent();
924508f0 5172 EXTEND(SP,1);
a0d0e21e
LW		 5173 RETPUSHYES;
5174#else
cea2e8a9 5175 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5176#endif
5177}
5178
5179PP(pp_enetent)
5180{
693762b4 5181#ifdef HAS_ENDNETENT
9cad6237 5182 dSP;
76e3520e 5183 PerlSock_endnetent();
924508f0 5184 EXTEND(SP,1);
a0d0e21e
LW		 5185 RETPUSHYES;
5186#else
cea2e8a9 5187 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5188#endif
5189}
5190
5191PP(pp_eprotoent)
5192{
693762b4 5193#ifdef HAS_ENDPROTOENT
9cad6237 5194 dSP;
76e3520e 5195 PerlSock_endprotoent();
924508f0 5196 EXTEND(SP,1);
a0d0e21e
LW		 5197 RETPUSHYES;
5198#else
cea2e8a9 5199 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5200#endif
5201}
5202
5203PP(pp_eservent)
5204{
693762b4 5205#ifdef HAS_ENDSERVENT
9cad6237 5206 dSP;
76e3520e 5207 PerlSock_endservent();
924508f0 5208 EXTEND(SP,1);
a0d0e21e
LW		 5209 RETPUSHYES;
5210#else
cea2e8a9 5211 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5212#endif
5213}
5214
5215PP(pp_gpwnam)
5216{
5217#ifdef HAS_PASSWD
cea2e8a9 5218 return pp_gpwent();
a0d0e21e 5219#else
cea2e8a9 5220 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5221#endif
5222}
5223
5224PP(pp_gpwuid)
5225{
5226#ifdef HAS_PASSWD
cea2e8a9 5227 return pp_gpwent();
a0d0e21e 5228#else
cea2e8a9 5229 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5230#endif
5231}
5232
5233PP(pp_gpwent)
5234{
0994c4d0 5235#ifdef HAS_PASSWD
9cad6237 5236 dSP;
533c011a 5237 I32 which = PL_op->op_type;
a0d0e21e 5238 register SV *sv;
2d8e6c8d 5239 STRLEN n_a;
e3aefe8d 5240 struct passwd *pwent = NULL;
301e8125 5241 /*
bcf53261
JH		 5242 * We currently support only the SysV getsp* shadow password interface.
5243 * The interface is declared in <shadow.h> and often one needs to link
5244 * with -lsecurity or some such.
5245 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5246 * (and SCO?)
5247 *
5248 * AIX getpwnam() is clever enough to return the encrypted password
5249 * only if the caller (euid?) is root.
5250 *
e549f1c5 5251 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5252 * seem to contain more than one interface for accessing the shadow
5253 * password databases, possibly for compatibility reasons.
3813c136 5254 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5255 * are much more complicated, but also very similar to each other.
5256 *
5257 * <sys/types.h>
5258 * <sys/security.h>
5259 * <prot.h>
5260 * struct pr_passwd *getprpw*();
5261 * The password is in
3813c136
JH		 5262 * char getprpw*(...).ufld.fd_encrypt[]
5263 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5264 *
5265 * <sys/types.h>
5266 * <sys/security.h>
5267 * <prot.h>
5268 * struct es_passwd *getespw*();
5269 * The password is in
5270 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5271 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5272 *
e1920a95 5273 * <userpw.h> (AIX)
e549f1c5
JH		 5274 * struct userpw *getuserpw();
5275 * The password is in
5276 * char *(getuserpw(...)).spw_upw_passwd
5277 * (but the de facto standard getpwnam() should work okay)
5278 *
3813c136 5279 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5280 *
5281 * In HP-UX for getprpw*() the manual page claims that one should include
5282 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5283 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5284 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5285 *
5286 * Note that <sys/security.h> is already probed for, but currently
5287 * it is only included in special cases.
301e8125 5288 *
bcf53261
JH		 5289 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5290 * be preferred interface, even though also the getprpw*() interface
5291 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5292 * One also needs to call set_auth_parameters() in main() before
5293 * doing anything else, whether one is using getespw*() or getprpw*().
5294 *
5295 * Note that accessing the shadow databases can be magnitudes
5296 * slower than accessing the standard databases.
bcf53261
JH		 5297 *
5298 * --jhi
5299 */
a0d0e21e 5300
9e5f0c48
JH		 5301# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5302 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5303 * the pw_comment is left uninitialized. */
5304 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5305# endif
5306
e3aefe8d
JH		 5307 switch (which) {
5308 case OP_GPWNAM:
edd309b7
JH		 5309 {
5310 char* name = POPpbytex;
5311 pwent = getpwnam(name);
5312 }
5313 break;
e3aefe8d 5314 case OP_GPWUID:
edd309b7
JH		 5315 {
5316 Uid_t uid = POPi;
5317 pwent = getpwuid(uid);
5318 }
e3aefe8d
JH		 5319 break;
5320 case OP_GPWENT:
1883634f 5321# ifdef HAS_GETPWENT
e3aefe8d 5322 pwent = getpwent();
faea9016
IRC		 5323#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5324 if (pwent) pwent = getpwnam(pwent->pw_name);
5325#endif
1883634f 5326# else
a45d1c96 5327 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5328# endif
e3aefe8d
JH		 5329 break;
5330 }
8c0bfa08 5331
a0d0e21e
LW		 5332 EXTEND(SP, 10);
5333 if (GIMME != G_ARRAY) {
5334 PUSHs(sv = sv_newmortal());
5335 if (pwent) {
5336 if (which == OP_GPWNAM)
1883634f 5337# if Uid_t_sign <= 0
1e422769 5338 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5339# else
23dcd6c8 5340 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5341# endif
a0d0e21e
LW		 5342 else
5343 sv_setpv(sv, pwent->pw_name);
5344 }
5345 RETURN;
5346 }
5347
5348 if (pwent) {
3280af22 5349 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5350 sv_setpv(sv, pwent->pw_name);
6ee623d5 5351
3280af22 5352 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5353 SvPOK_off(sv);
5354 /* If we have getspnam(), we try to dig up the shadow
5355 * password. If we are underprivileged, the shadow
5356 * interface will set the errno to EACCES or similar,
5357 * and return a null pointer. If this happens, we will
5358 * use the dummy password (usually "*" or "x") from the
5359 * standard password database.
5360 *
5361 * In theory we could skip the shadow call completely
5362 * if euid != 0 but in practice we cannot know which
5363 * security measures are guarding the shadow databases
5364 * on a random platform.
5365 *
5366 * Resist the urge to use additional shadow interfaces.
5367 * Divert the urge to writing an extension instead.
5368 *
5369 * --jhi */
e549f1c5
JH		 5370 /* Some AIX setups falsely(?) detect some getspnam(), which
5371 * has a different API than the Solaris/IRIX one. */
5372# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5373 {
5374 struct spwd *spwent;
5375 int saverrno; /* Save and restore errno so that
5376 * underprivileged attempts seem
5377 * to have never made the unsccessful
5378 * attempt to retrieve the shadow password. */
5379
5380 saverrno = errno;
5381 spwent = getspnam(pwent->pw_name);
5382 errno = saverrno;
5383 if (spwent && spwent->sp_pwdp)
5384 sv_setpv(sv, spwent->sp_pwdp);
5385 }
f1066039 5386# endif
e020c87d 5387# ifdef PWPASSWD
3813c136
JH		 5388 if (!SvPOK(sv)) /* Use the standard password, then. */
5389 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5390# endif
3813c136 5391
1883634f 5392# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5393 /* passwd is tainted because user himself can diddle with it.
5394 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5395 SvTAINTED_on(sv);
1883634f 5396# endif
6ee623d5 5397
3280af22 5398 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5399# if Uid_t_sign <= 0
1e422769 5400 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5401# else
23dcd6c8 5402 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5403# endif
6ee623d5 5404
3280af22 5405 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5406# if Uid_t_sign <= 0
1e422769 5407 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5408# else
23dcd6c8 5409 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5410# endif
3813c136
JH		 5411 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5412 * because of the poor interface of the Perl getpw*(),
5413 * not because there's some standard/convention saying so.
5414 * A better interface would have been to return a hash,
5415 * but we are accursed by our history, alas. --jhi. */
3280af22 5416 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5417# ifdef PWCHANGE
1e422769 5418 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5419# else
1883634f
JH		 5420# ifdef PWQUOTA
5421 sv_setiv(sv, (IV)pwent->pw_quota);
5422# else
a1757be1 5423# ifdef PWAGE
a0d0e21e 5424 sv_setpv(sv, pwent->pw_age);
a1757be1 5425# endif
6ee623d5
GS		 5426# endif
5427# endif
6ee623d5 5428
3813c136
JH		 5429 /* pw_class and pw_comment are mutually exclusive--.
5430 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5432# ifdef PWCLASS
a0d0e21e 5433 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5434# else
5435# ifdef PWCOMMENT
a0d0e21e 5436 sv_setpv(sv, pwent->pw_comment);
1883634f 5437# endif
6ee623d5 5438# endif
6ee623d5 5439
3280af22 5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5441# ifdef PWGECOS
a0d0e21e 5442 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5443# endif
5444# ifndef INCOMPLETE_TAINTS
d2719217 5445 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5446 SvTAINTED_on(sv);
1883634f 5447# endif
6ee623d5 5448
3280af22 5449 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5450 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5451
3280af22 5452 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5453 sv_setpv(sv, pwent->pw_shell);
1883634f 5454# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5455 /* pw_shell is tainted because user himself can diddle with it. */
5456 SvTAINTED_on(sv);
1883634f 5457# endif
6ee623d5 5458
1883634f 5459# ifdef PWEXPIRE
6b88bc9c 5460 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5461 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5462# endif
a0d0e21e
LW		 5463 }
5464 RETURN;
5465#else
cea2e8a9 5466 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5467#endif
5468}
5469
5470PP(pp_spwent)
5471{
d493b042 5472#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5473 dSP;
a0d0e21e
LW		 5474 setpwent();
5475 RETPUSHYES;
5476#else
cea2e8a9 5477 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5478#endif
5479}
5480
5481PP(pp_epwent)
5482{
28e8609d 5483#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5484 dSP;
a0d0e21e
LW		 5485 endpwent();
5486 RETPUSHYES;
5487#else
cea2e8a9 5488 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5489#endif
5490}
5491
5492PP(pp_ggrnam)
5493{
5494#ifdef HAS_GROUP
cea2e8a9 5495 return pp_ggrent();
a0d0e21e 5496#else
cea2e8a9 5497 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5498#endif
5499}
5500
5501PP(pp_ggrgid)
5502{
5503#ifdef HAS_GROUP
cea2e8a9 5504 return pp_ggrent();
a0d0e21e 5505#else
cea2e8a9 5506 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5507#endif
5508}
5509
5510PP(pp_ggrent)
5511{
0994c4d0 5512#ifdef HAS_GROUP
9cad6237 5513 dSP;
533c011a 5514 I32 which = PL_op->op_type;
a0d0e21e
LW		 5515 register char **elem;
5516 register SV *sv;
5517 struct group *grent;
2d8e6c8d 5518 STRLEN n_a;
a0d0e21e 5519
edd309b7
JH		 5520 if (which == OP_GGRNAM) {
5521 char* name = POPpbytex;
5522 grent = (struct group *)getgrnam(name);
5523 }
5524 else if (which == OP_GGRGID) {
5525 Gid_t gid = POPi;
5526 grent = (struct group *)getgrgid(gid);
5527 }
a0d0e21e 5528 else
0994c4d0 5529#ifdef HAS_GETGRENT
a0d0e21e 5530 grent = (struct group *)getgrent();
0994c4d0
JH		 5531#else
5532 DIE(aTHX_ PL_no_func, "getgrent");
5533#endif
a0d0e21e
LW		 5534
5535 EXTEND(SP, 4);
5536 if (GIMME != G_ARRAY) {
5537 PUSHs(sv = sv_newmortal());
5538 if (grent) {
5539 if (which == OP_GGRNAM)
1e422769 5540 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5541 else
5542 sv_setpv(sv, grent->gr_name);
5543 }
5544 RETURN;
5545 }
5546
5547 if (grent) {
3280af22 5548 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5549 sv_setpv(sv, grent->gr_name);
28e8609d 5550
3280af22 5551 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5552#ifdef GRPASSWD
a0d0e21e 5553 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5554#endif
5555
3280af22 5556 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5557 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5558
5b56e7c5 5559#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5560 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5561 /* In UNICOS/mk (_CRAYMPP) the multithreading
5562 * versions (getgrnam_r, getgrgid_r)
5563 * seem to return an illegal pointer
5564 * as the group members list, gr_mem.
5565 * getgrent() doesn't even have a _r version
5566 * but the gr_mem is poisonous anyway.
5567 * So yes, you cannot get the list of group
5568 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5569 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5570 sv_catpv(sv, *elem);
5571 if (elem[1])
5572 sv_catpvn(sv, " ", 1);
5573 }
3d7e8424 5574#endif
a0d0e21e
LW		 5575 }
5576
5577 RETURN;
5578#else
cea2e8a9 5579 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5580#endif
5581}
5582
5583PP(pp_sgrent)
5584{
28e8609d 5585#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5586 dSP;
a0d0e21e
LW		 5587 setgrent();
5588 RETPUSHYES;
5589#else
cea2e8a9 5590 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5591#endif
5592}
5593
5594PP(pp_egrent)
5595{
28e8609d 5596#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5597 dSP;
a0d0e21e
LW		 5598 endgrent();
5599 RETPUSHYES;
5600#else
cea2e8a9 5601 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5602#endif
5603}
5604
5605PP(pp_getlogin)
5606{
a0d0e21e 5607#ifdef HAS_GETLOGIN
9cad6237 5608 dSP; dTARGET;
a0d0e21e
LW		 5609 char *tmps;
5610 EXTEND(SP, 1);
76e3520e 5611 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5612 RETPUSHUNDEF;
5613 PUSHp(tmps, strlen(tmps));
5614 RETURN;
5615#else
cea2e8a9 5616 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5617#endif
5618}
5619
5620/* Miscellaneous. */
5621
5622PP(pp_syscall)
5623{
d2719217 5624#ifdef HAS_SYSCALL
39644a26 5625 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5626 register I32 items = SP - MARK;
5627 unsigned long a[20];
5628 register I32 i = 0;
5629 I32 retval = -1;
2d8e6c8d 5630 STRLEN n_a;
a0d0e21e 5631
3280af22 5632 if (PL_tainting) {
a0d0e21e 5633 while (++MARK <= SP) {
bbce6d69 5634 if (SvTAINTED(*MARK)) {
5635 TAINT;
5636 break;
5637 }
a0d0e21e
LW		 5638 }
5639 MARK = ORIGMARK;
5640 TAINT_PROPER("syscall");
5641 }
5642
5643 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5644 * or where sizeof(long) != sizeof(char*). But such machines will
5645 * not likely have syscall implemented either, so who cares?
5646 */
5647 while (++MARK <= SP) {
5648 if (SvNIOK(*MARK) || !i)
5649 a[i++] = SvIV(*MARK);
3280af22 5650 else if (*MARK == &PL_sv_undef)
748a9306 5651 a[i++] = 0;
301e8125 5652 else
2d8e6c8d 5653 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5654 if (i > 15)
5655 break;
5656 }
5657 switch (items) {
5658 default:
cea2e8a9 5659 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5660 case 0:
cea2e8a9 5661 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5662 case 1:
5663 retval = syscall(a[0]);
5664 break;
5665 case 2:
5666 retval = syscall(a[0],a[1]);
5667 break;
5668 case 3:
5669 retval = syscall(a[0],a[1],a[2]);
5670 break;
5671 case 4:
5672 retval = syscall(a[0],a[1],a[2],a[3]);
5673 break;
5674 case 5:
5675 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5676 break;
5677 case 6:
5678 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5679 break;
5680 case 7:
5681 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5682 break;
5683 case 8:
5684 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5685 break;
5686#ifdef atarist
5687 case 9:
5688 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5689 break;
5690 case 10:
5691 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5692 break;
5693 case 11:
5694 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5695 a[10]);
5696 break;
5697 case 12:
5698 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5699 a[10],a[11]);
5700 break;
5701 case 13:
5702 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5703 a[10],a[11],a[12]);
5704 break;
5705 case 14:
5706 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5707 a[10],a[11],a[12],a[13]);
5708 break;
5709#endif /* atarist */
5710 }
5711 SP = ORIGMARK;
5712 PUSHi(retval);
5713 RETURN;
5714#else
cea2e8a9 5715 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5716#endif
5717}
5718
ff68c719 5719#ifdef FCNTL_EMULATE_FLOCK
301e8125 5720
ff68c719 5721/* XXX Emulate flock() with fcntl().
5722 What's really needed is a good file locking module.
5723*/
5724
cea2e8a9
GS		 5725static int
5726fcntl_emulate_flock(int fd, int operation)
ff68c719 5727{
5728 struct flock flock;
301e8125 5729
ff68c719 5730 switch (operation & ~LOCK_NB) {
5731 case LOCK_SH:
5732 flock.l_type = F_RDLCK;
5733 break;
5734 case LOCK_EX:
5735 flock.l_type = F_WRLCK;
5736 break;
5737 case LOCK_UN:
5738 flock.l_type = F_UNLCK;
5739 break;
5740 default:
5741 errno = EINVAL;
5742 return -1;
5743 }
5744 flock.l_whence = SEEK_SET;
d9b3e12d 5745 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5746
ff68c719 5747 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5748}
5749
5750#endif /* FCNTL_EMULATE_FLOCK */
5751
5752#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5753
5754/* XXX Emulate flock() with lockf(). This is just to increase
5755 portability of scripts. The calls are not completely
5756 interchangeable. What's really needed is a good file
5757 locking module.
5758*/
5759
76c32331 5760/* The lockf() constants might have been defined in <unistd.h>.
5761 Unfortunately, <unistd.h> causes troubles on some mixed
5762 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5763
5764 Further, the lockf() constants aren't POSIX, so they might not be
5765 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5766 just stick in the SVID values and be done with it. Sigh.
5767*/
5768
5769# ifndef F_ULOCK
5770# define F_ULOCK 0 /* Unlock a previously locked region */
5771# endif
5772# ifndef F_LOCK
5773# define F_LOCK 1 /* Lock a region for exclusive use */
5774# endif
5775# ifndef F_TLOCK
5776# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5777# endif
5778# ifndef F_TEST
5779# define F_TEST 3 /* Test a region for other processes locks */
5780# endif
5781
cea2e8a9
GS		 5782static int
5783lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5784{
5785 int i;
84902520
TB		 5786 int save_errno;
5787 Off_t pos;
5788
5789 /* flock locks entire file so for lockf we need to do the same */
5790 save_errno = errno;
6ad3d225 5791 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5792 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5793 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5794 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5795 errno = save_errno;
5796
16d20bd9
AD		 5797 switch (operation) {
5798
5799 /* LOCK_SH - get a shared lock */
5800 case LOCK_SH:
5801 /* LOCK_EX - get an exclusive lock */
5802 case LOCK_EX:
5803 i = lockf (fd, F_LOCK, 0);
5804 break;
5805
5806 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5807 case LOCK_SH|LOCK_NB:
5808 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5809 case LOCK_EX|LOCK_NB:
5810 i = lockf (fd, F_TLOCK, 0);
5811 if (i == -1)
5812 if ((errno == EAGAIN) || (errno == EACCES))
5813 errno = EWOULDBLOCK;
5814 break;
5815
ff68c719 5816 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5817 case LOCK_UN:
ff68c719 5818 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5819 i = lockf (fd, F_ULOCK, 0);
5820 break;
5821
5822 /* Default - can't decipher operation */
5823 default:
5824 i = -1;
5825 errno = EINVAL;
5826 break;
5827 }
84902520
TB		 5828
5829 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5830 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5831
16d20bd9
AD		 5832 return (i);
5833}
ff68c719 5834
5835#endif /* LOCKF_EMULATE_FLOCK */
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