This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
https://perl5.git.perl.org / perl5.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Sigh - really bump Text::Wrap version number this time.
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790
JH		 89#elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
27da23d5
JH		 121#else
122# ifdef HAS_TRUNCATE
123# define my_chsize PerlLIO_chsize
124# else
125I32 my_chsize(int fd, Off_t length);
126# endif
cbdc8872 127#endif
128
ff68c719 129#ifdef HAS_FLOCK
130# define FLOCK flock
131#else /* no flock() */
132
36477c24 133 /* fcntl.h might not have been included, even if it exists, because
134 the current Configure only sets I_FCNTL if it's needed to pick up
135 the *_OK constants. Make sure it has been included before testing
136 the fcntl() locking constants. */
137# if defined(HAS_FCNTL) && !defined(I_FCNTL)
138# include <fcntl.h>
139# endif
140
9d9004a9 141# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 142# define FLOCK fcntl_emulate_flock
143# define FCNTL_EMULATE_FLOCK
144# else /* no flock() or fcntl(F_SETLK,...) */
145# ifdef HAS_LOCKF
146# define FLOCK lockf_emulate_flock
147# define LOCKF_EMULATE_FLOCK
148# endif /* lockf */
149# endif /* no flock() or fcntl(F_SETLK,...) */
150
151# ifdef FLOCK
20ce7b12 152 static int FLOCK (int, int);
ff68c719 153
154 /*
155 * These are the flock() constants. Since this sytems doesn't have
156 * flock(), the values of the constants are probably not available.
157 */
158# ifndef LOCK_SH
159# define LOCK_SH 1
160# endif
161# ifndef LOCK_EX
162# define LOCK_EX 2
163# endif
164# ifndef LOCK_NB
165# define LOCK_NB 4
166# endif
167# ifndef LOCK_UN
168# define LOCK_UN 8
169# endif
170# endif /* emulating flock() */
171
172#endif /* no flock() */
55497cff 173
85ab1d1d 174#define ZBTLEN 10
27da23d5 175static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 176
5ff3f7a4
GS		 177#if defined(I_SYS_ACCESS) && !defined(R_OK)
178# include <sys/access.h>
179#endif
180
c529f79d
CB		 181#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
182# define FD_CLOEXEC 1 /* NeXT needs this */
183#endif
184
a4af207c
JH		 185#include "reentr.h"
186
9cffb111
OS		 187#ifdef __Lynx__
188/* Missing protos on LynxOS */
189void sethostent(int);
190void endhostent(void);
191void setnetent(int);
192void endnetent(void);
193void setprotoent(int);
194void endprotoent(void);
195void setservent(int);
196void endservent(void);
197#endif
198
5ff3f7a4
GS		 199#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
200#undef PERL_EFF_ACCESS_W_OK
201#undef PERL_EFF_ACCESS_X_OK
202
203/* F_OK unused: if stat() cannot find it... */
204
205#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 206 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 207# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
208# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
209# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
210#endif
211
212#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 213# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 214# include <sys/security.h>
215# endif
c955f117
JH		 216# ifdef ACC_SELF
217 /* HP SecureWare */
218# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
219# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
220# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
221# else
222 /* SCO */
223# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
224# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
225# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
226# endif
5ff3f7a4
GS		 227#endif
228
229#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 230 /* AIX */
5ff3f7a4
GS		 231# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
232# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
233# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
234#endif
235
327c3667
GS		 236#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
237 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
238 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 239/* The Hard Way. */
327c3667 240STATIC int
7f4774ae 241S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 242{
5ff3f7a4
GS		 243 Uid_t ruid = getuid();
244 Uid_t euid = geteuid();
245 Gid_t rgid = getgid();
246 Gid_t egid = getegid();
247 int res;
248
146174a9 249 LOCK_CRED_MUTEX;
5ff3f7a4 250#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 251 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 252#else
253#ifdef HAS_SETREUID
254 if (setreuid(euid, ruid))
255#else
256#ifdef HAS_SETRESUID
257 if (setresuid(euid, ruid, (Uid_t)-1))
258#endif
259#endif
cea2e8a9 260 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 261#endif
262
263#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 264 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 265#else
266#ifdef HAS_SETREGID
267 if (setregid(egid, rgid))
268#else
269#ifdef HAS_SETRESGID
270 if (setresgid(egid, rgid, (Gid_t)-1))
271#endif
272#endif
cea2e8a9 273 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 274#endif
275
276 res = access(path, mode);
277
278#ifdef HAS_SETREUID
279 if (setreuid(ruid, euid))
280#else
281#ifdef HAS_SETRESUID
282 if (setresuid(ruid, euid, (Uid_t)-1))
283#endif
284#endif
cea2e8a9 285 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 286
287#ifdef HAS_SETREGID
288 if (setregid(rgid, egid))
289#else
290#ifdef HAS_SETRESGID
291 if (setresgid(rgid, egid, (Gid_t)-1))
292#endif
293#endif
cea2e8a9 294 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 295 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 296
297 return res;
298}
299# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
300# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
301# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
302#endif
303
304#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 305/* With it or without it: anyway you get a warning: either that
306 it is unused, or it is declared static and never defined.
307 */
327c3667 308STATIC int
7f4774ae 309S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 310{
cea2e8a9 311 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 312 /*NOTREACHED*/
313 return -1;
314}
315#endif
316
a0d0e21e
LW		 317PP(pp_backtick)
318{
39644a26 319 dSP; dTARGET;
760ac839 320 PerlIO *fp;
2d8e6c8d
GS		 321 STRLEN n_a;
322 char *tmps = POPpx;
54310121 323 I32 gimme = GIMME_V;
e1ec3a88 324 const char *mode = "r";
54310121 325
a0d0e21e 326 TAINT_PROPER("``");
16fe6d59
GS		 327 if (PL_op->op_private & OPpOPEN_IN_RAW)
328 mode = "rb";
329 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
330 mode = "rt";
dd374669 331 fp = PerlProc_popen(tmps, (char *)mode);
a0d0e21e 332 if (fp) {
e1ec3a88 333 const char *type = NULL;
ac27b0f5
NIS		 334 if (PL_curcop->cop_io) {
335 type = SvPV_nolen(PL_curcop->cop_io);
336 }
ac27b0f5
NIS		 337 if (type && *type)
338 PerlIO_apply_layers(aTHX_ fp,mode,type);
339
54310121 340 if (gimme == G_VOID) {
96827780
MB		 341 char tmpbuf[256];
342 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 343 /*SUPPRESS 530*/
344 ;
345 }
346 else if (gimme == G_SCALAR) {
75af1a9c
DM		 347 ENTER;
348 SAVESPTR(PL_rs);
fa326138 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 ;
75af1a9c 354 LEAVE;
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) {
1da4ca5f 369 SvPV_shrink_to_cur(sv);
a0d0e21e 370 }
aa689395 371 SvTAINTED_on(sv);
a0d0e21e
LW		 372 }
373 }
6ad3d225 374 STATUS_NATIVE_SET(PerlProc_pclose(fp));
aa689395 375 TAINT; /* "I believe that this is not gratuitous!" */
a0d0e21e
LW		 376 }
377 else {
f86702cc 378 STATUS_NATIVE_SET(-1);
54310121 379 if (gimme == G_SCALAR)
a0d0e21e
LW		 380 RETPUSHUNDEF;
381 }
382
383 RETURN;
384}
385
386PP(pp_glob)
387{
27da23d5 388 dVAR;
a0d0e21e 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;
e1ec3a88 435 const 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;
e1ec3a88 465 const 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 }
5df617be 507 DIE_NULL;
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{
27da23d5 526 dVAR; 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{
27da23d5 577 dVAR; 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{
27da23d5 662 dVAR; 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{
27da23d5 700 dSP;
d7e492a4 701#ifdef HAS_UMASK
27da23d5 702 dTARGET;
761237fe 703 Mode_t anum;
a0d0e21e 704
a0d0e21e 705 if (MAXARG < 1) {
6ad3d225
GS		 706 anum = PerlLIO_umask(0);
707 (void)PerlLIO_umask(anum);
a0d0e21e
LW		 708 }
709 else
6ad3d225 710 anum = PerlLIO_umask(POPi);
a0d0e21e
LW		 711 TAINT_PROPER("umask");
712 XPUSHi(anum);
713#else
eec2d3df
GS		 714 /* Only DIE if trying to restrict permissions on `user' (self).
715 * Otherwise it's harmless and more useful to just return undef
716 * since 'group' and 'other' concepts probably don't exist here. */
717 if (MAXARG >= 1 && (POPi & 0700))
cea2e8a9 718 DIE(aTHX_ "umask not implemented");
6b88bc9c 719 XPUSHs(&PL_sv_undef);
a0d0e21e
LW		 720#endif
721 RETURN;
722}
723
724PP(pp_binmode)
725{
27da23d5 726 dVAR; dSP;
a0d0e21e
LW		 727 GV *gv;
728 IO *io;
760ac839 729 PerlIO *fp;
4592e6ca 730 MAGIC *mg;
16fe6d59 731 SV *discp = Nullsv;
a0d0e21e
LW		 732
733 if (MAXARG < 1)
734 RETPUSHUNDEF;
60382766 735 if (MAXARG > 1) {
16fe6d59 736 discp = POPs;
60382766 737 }
a0d0e21e 738
301e8125 739 gv = (GV*)POPs;
4592e6ca 740
5b468f54
AMS		 741 if (gv && (io = GvIO(gv))
742 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
743 {
4592e6ca 744 PUSHMARK(SP);
5b468f54 745 XPUSHs(SvTIED_obj((SV*)io, mg));
16fe6d59
GS		 746 if (discp)
747 XPUSHs(discp);
4592e6ca
NIS		 748 PUTBACK;
749 ENTER;
864dbfa3 750 call_method("BINMODE", G_SCALAR);
4592e6ca
NIS		 751 LEAVE;
752 SPAGAIN;
753 RETURN;
754 }
a0d0e21e
LW		 755
756 EXTEND(SP, 1);
50f846a7 757 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
c289d2f7
JH		 758 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
759 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 760 SETERRNO(EBADF,RMS_IFI);
50f846a7
SC		 761 RETPUSHUNDEF;
762 }
a0d0e21e 763
40d98b49 764 PUTBACK;
60382766 765 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
40d98b49 766 (discp) ? SvPV_nolen(discp) : Nullch)) {
38af81ff
JH		 767 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
768 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
769 mode_from_discipline(discp),
770 (discp) ? SvPV_nolen(discp) : Nullch)) {
771 SPAGAIN;
772 RETPUSHUNDEF;
773 }
774 }
40d98b49 775 SPAGAIN;
a0d0e21e 776 RETPUSHYES;
40d98b49
JH		 777 }
778 else {
779 SPAGAIN;
a0d0e21e 780 RETPUSHUNDEF;
40d98b49 781 }
a0d0e21e
LW		 782}
783
784PP(pp_tie)
785{
27da23d5 786 dVAR; dSP; dMARK;
a0d0e21e
LW		 787 SV *varsv;
788 HV* stash;
789 GV *gv;
a0d0e21e 790 SV *sv;
3280af22 791 I32 markoff = MARK - PL_stack_base;
e1ec3a88 792 const 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{
27da23d5 875 dVAR; 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{
27da23d5 935 dVAR; 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
5c477709
RGS		 1137 if (nfound == -1)
1138 PUSHs(&PL_sv_undef);
1139 else
1140 PUSHi(nfound);
a0d0e21e 1141 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1142 value = (NV)(timebuf.tv_sec) +
1143 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1144 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1145 sv_setnv(sv, value);
1146 }
1147 RETURN;
1148#else
cea2e8a9 1149 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1150#endif
1151}
1152
4633a7c4 1153void
864dbfa3 1154Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1155{
1156 if (gv)
1157 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1158 if (PL_defoutgv)
1159 SvREFCNT_dec(PL_defoutgv);
1160 PL_defoutgv = gv;
4633a7c4
LW		 1161}
1162
a0d0e21e
LW		 1163PP(pp_select)
1164{
39644a26 1165 dSP; dTARGET;
4633a7c4
LW		 1166 GV *newdefout, *egv;
1167 HV *hv;
1168
533c011a 1169 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1170
3280af22 1171 egv = GvEGV(PL_defoutgv);
4633a7c4 1172 if (!egv)
3280af22 1173 egv = PL_defoutgv;
4633a7c4
LW		 1174 hv = GvSTASH(egv);
1175 if (! hv)
3280af22 1176 XPUSHs(&PL_sv_undef);
4633a7c4 1177 else {
cbdc8872 1178 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1179 if (gvp && *gvp == egv) {
f7aaccc2 1180 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1181 XPUSHTARG;
1182 }
1183 else {
1184 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1185 }
4633a7c4
LW		 1186 }
1187
1188 if (newdefout) {
ded8aa31
GS		 1189 if (!GvIO(newdefout))
1190 gv_IOadd(newdefout);
4633a7c4
LW		 1191 setdefout(newdefout);
1192 }
1193
a0d0e21e
LW		 1194 RETURN;
1195}
1196
1197PP(pp_getc)
1198{
27da23d5 1199 dVAR; dSP; dTARGET;
a0d0e21e 1200 GV *gv;
90133b69 1201 IO *io = NULL;
2ae324a7 1202 MAGIC *mg;
a0d0e21e 1203
32da55ab 1204 if (MAXARG == 0)
3280af22 1205 gv = PL_stdingv;
a0d0e21e
LW		 1206 else
1207 gv = (GV*)POPs;
2ae324a7 1208
5b468f54
AMS		 1209 if (gv && (io = GvIO(gv))
1210 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1211 {
54310121 1212 I32 gimme = GIMME_V;
2ae324a7 1213 PUSHMARK(SP);
5b468f54 1214 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1215 PUTBACK;
1216 ENTER;
864dbfa3 1217 call_method("GETC", gimme);
2ae324a7 1218 LEAVE;
1219 SPAGAIN;
54310121 1220 if (gimme == G_SCALAR)
1221 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1222 RETURN;
1223 }
90133b69 1224 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1225 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1226 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1227 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1228 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1229 RETPUSHUNDEF;
90133b69 1230 }
bbce6d69 1231 TAINT;
a0d0e21e 1232 sv_setpv(TARG, " ");
9bc64814 1233 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1234 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1235 /* Find out how many bytes the char needs */
1236 Size_t len = UTF8SKIP(SvPVX(TARG));
1237 if (len > 1) {
1238 SvGROW(TARG,len+1);
1239 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1240 SvCUR_set(TARG,1+len);
1241 }
1242 SvUTF8_on(TARG);
1243 }
a0d0e21e
LW		 1244 PUSHTARG;
1245 RETURN;
1246}
1247
1248PP(pp_read)
1249{
cea2e8a9 1250 return pp_sysread();
a0d0e21e
LW		 1251}
1252
76e3520e 1253STATIC OP *
cea2e8a9 1254S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1255{
27da23d5 1256 dVAR;
c09156bb 1257 register PERL_CONTEXT *cx;
54310121 1258 I32 gimme = GIMME_V;
a0d0e21e
LW		 1259
1260 ENTER;
1261 SAVETMPS;
1262
146174a9 1263 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1264 PUSHFORMAT(cx);
f39bc417 1265 cx->blk_sub.retop = retop;
dd2155a4 1266 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1267
4633a7c4 1268 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1269 return CvSTART(cv);
1270}
1271
1272PP(pp_enterwrite)
1273{
39644a26 1274 dSP;
a0d0e21e
LW		 1275 register GV *gv;
1276 register IO *io;
1277 GV *fgv;
1278 CV *cv;
1279
1280 if (MAXARG == 0)
3280af22 1281 gv = PL_defoutgv;
a0d0e21e
LW		 1282 else {
1283 gv = (GV*)POPs;
1284 if (!gv)
3280af22 1285 gv = PL_defoutgv;
a0d0e21e
LW		 1286 }
1287 EXTEND(SP, 1);
1288 io = GvIO(gv);
1289 if (!io) {
1290 RETPUSHNO;
1291 }
1292 if (IoFMT_GV(io))
1293 fgv = IoFMT_GV(io);
1294 else
1295 fgv = gv;
1296
1297 cv = GvFORM(fgv);
a0d0e21e 1298 if (!cv) {
2dd78f96 1299 char *name = NULL;
a0d0e21e 1300 if (fgv) {
748a9306 1301 SV *tmpsv = sv_newmortal();
43693395 1302 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
2dd78f96 1303 name = SvPV_nolen(tmpsv);
a0d0e21e 1304 }
2dd78f96
JH		 1305 if (name && *name)
1306 DIE(aTHX_ "Undefined format \"%s\" called", name);
cea2e8a9 1307 DIE(aTHX_ "Not a format reference");
a0d0e21e 1308 }
44a8e56a 1309 if (CvCLONE(cv))
1310 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1311
44a8e56a 1312 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1313 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1314}
1315
1316PP(pp_leavewrite)
1317{
27da23d5 1318 dVAR; dSP;
a0d0e21e
LW		 1319 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1320 register IO *io = GvIOp(gv);
760ac839
LW		 1321 PerlIO *ofp = IoOFP(io);
1322 PerlIO *fp;
a0d0e21e
LW		 1323 SV **newsp;
1324 I32 gimme;
c09156bb 1325 register PERL_CONTEXT *cx;
a0d0e21e 1326
760ac839 1327 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1328 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1329 if (!io || !ofp)
1330 goto forget_top;
3280af22
NIS		 1331 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1332 PL_formtarget != PL_toptarget)
a0d0e21e 1333 {
4633a7c4
LW		 1334 GV *fgv;
1335 CV *cv;
a0d0e21e
LW		 1336 if (!IoTOP_GV(io)) {
1337 GV *topgv;
46fc3d4c 1338 SV *topname;
a0d0e21e
LW		 1339
1340 if (!IoTOP_NAME(io)) {
1341 if (!IoFMT_NAME(io))
1342 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1343 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1344 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1345 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1346 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1347 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1348 else
ff5bdd37 1349 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1350 }
1351 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1352 if (!topgv || !GvFORM(topgv)) {
b929a54b 1353 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1354 goto forget_top;
1355 }
1356 IoTOP_GV(io) = topgv;
1357 }
748a9306
LW		 1358 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1359 I32 lines = IoLINES_LEFT(io);
3280af22 1360 char *s = SvPVX(PL_formtarget);
8e07c86e
AD		 1361 if (lines <= 0) /* Yow, header didn't even fit!!! */
1362 goto forget_top;
748a9306
LW		 1363 while (lines-- > 0) {
1364 s = strchr(s, '\n');
1365 if (!s)
1366 break;
1367 s++;
1368 }
1369 if (s) {
d75029d0
NIS		 1370 STRLEN save = SvCUR(PL_formtarget);
1371 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1372 do_print(PL_formtarget, ofp);
1373 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1374 sv_chop(PL_formtarget, s);
1375 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1376 }
1377 }
a0d0e21e 1378 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1379 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1380 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1381 IoPAGE(io)++;
3280af22 1382 PL_formtarget = PL_toptarget;
748a9306 1383 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1384 fgv = IoTOP_GV(io);
1385 if (!fgv)
cea2e8a9 1386 DIE(aTHX_ "bad top format reference");
4633a7c4 1387 cv = GvFORM(fgv);
2dd78f96
JH		 1388 {
1389 char *name = NULL;
1390 if (!cv) {
1391 SV *sv = sv_newmortal();
1392 gv_efullname4(sv, fgv, Nullch, FALSE);
1393 name = SvPV_nolen(sv);
1394 }
1395 if (name && *name)
1396 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1397 /* why no:
1398 else
1399 DIE(aTHX_ "Undefined top format called");
1400 ?*/
4633a7c4 1401 }
44a8e56a 1402 if (CvCLONE(cv))
1403 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1404 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1405 }
1406
1407 forget_top:
3280af22 1408 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1409 POPFORMAT(cx);
1410 LEAVE;
1411
1412 fp = IoOFP(io);
1413 if (!fp) {
599cee73 1414 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1415 if (IoIFP(io))
1416 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1417 else if (ckWARN(WARN_CLOSED))
bc37a18f 1418 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1419 }
3280af22 1420 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1421 }
1422 else {
3280af22 1423 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1424 if (ckWARN(WARN_IO))
9014280d 1425 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1426 }
d75029d0 1427 if (!do_print(PL_formtarget, fp))
3280af22 1428 PUSHs(&PL_sv_no);
a0d0e21e 1429 else {
3280af22
NIS		 1430 FmLINES(PL_formtarget) = 0;
1431 SvCUR_set(PL_formtarget, 0);
1432 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1433 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1434 (void)PerlIO_flush(fp);
3280af22 1435 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1436 }
1437 }
9cbac4c7 1438 /* bad_ofp: */
3280af22 1439 PL_formtarget = PL_bodytarget;
a0d0e21e 1440 PUTBACK;
f39bc417 1441 return cx->blk_sub.retop;
a0d0e21e
LW		 1442}
1443
1444PP(pp_prtf)
1445{
27da23d5 1446 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1447 GV *gv;
1448 IO *io;
760ac839 1449 PerlIO *fp;
26db47c4 1450 SV *sv;
46fc3d4c 1451 MAGIC *mg;
a0d0e21e 1452
533c011a 1453 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1454 gv = (GV*)*++MARK;
1455 else
3280af22 1456 gv = PL_defoutgv;
46fc3d4c 1457
5b468f54
AMS		 1458 if (gv && (io = GvIO(gv))
1459 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1460 {
46fc3d4c 1461 if (MARK == ORIGMARK) {
4352c267 1462 MEXTEND(SP, 1);
46fc3d4c 1463 ++MARK;
1464 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1465 ++SP;
1466 }
1467 PUSHMARK(MARK - 1);
5b468f54 1468 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1469 PUTBACK;
1470 ENTER;
864dbfa3 1471 call_method("PRINTF", G_SCALAR);
46fc3d4c 1472 LEAVE;
1473 SPAGAIN;
1474 MARK = ORIGMARK + 1;
1475 *MARK = *SP;
1476 SP = MARK;
1477 RETURN;
1478 }
1479
26db47c4 1480 sv = NEWSV(0,0);
a0d0e21e 1481 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1482 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1483 report_evil_fh(gv, io, PL_op->op_type);
93189314 1484 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1485 goto just_say_no;
1486 }
1487 else if (!(fp = IoOFP(io))) {
599cee73 1488 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1489 if (IoIFP(io))
1490 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1491 else if (ckWARN(WARN_CLOSED))
bc37a18f 1492 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1493 }
93189314 1494 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1495 goto just_say_no;
1496 }
1497 else {
1498 do_sprintf(sv, SP - MARK, MARK + 1);
1499 if (!do_print(sv, fp))
1500 goto just_say_no;
1501
1502 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1503 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1504 goto just_say_no;
1505 }
1506 SvREFCNT_dec(sv);
1507 SP = ORIGMARK;
3280af22 1508 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1509 RETURN;
1510
1511 just_say_no:
1512 SvREFCNT_dec(sv);
1513 SP = ORIGMARK;
3280af22 1514 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1515 RETURN;
1516}
1517
c07a80fd 1518PP(pp_sysopen)
1519{
39644a26 1520 dSP;
c07a80fd 1521 GV *gv;
c07a80fd 1522 SV *sv;
1523 char *tmps;
1524 STRLEN len;
1525 int mode, perm;
1526
1527 if (MAXARG > 3)
1528 perm = POPi;
1529 else
1530 perm = 0666;
1531 mode = POPi;
1532 sv = POPs;
1533 gv = (GV *)POPs;
1534
4592e6ca
NIS		 1535 /* Need TIEHANDLE method ? */
1536
c07a80fd 1537 tmps = SvPV(sv, len);
1538 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1539 IoLINES(GvIOp(gv)) = 0;
3280af22 1540 PUSHs(&PL_sv_yes);
c07a80fd 1541 }
1542 else {
3280af22 1543 PUSHs(&PL_sv_undef);
c07a80fd 1544 }
1545 RETURN;
1546}
1547
a0d0e21e
LW		 1548PP(pp_sysread)
1549{
27da23d5 1550 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1551 int offset;
1552 GV *gv;
1553 IO *io;
1554 char *buffer;
5b54f415 1555 SSize_t length;
eb5c063a 1556 SSize_t count;
1e422769 1557 Sock_size_t bufsize;
748a9306 1558 SV *bufsv;
a0d0e21e 1559 STRLEN blen;
2ae324a7 1560 MAGIC *mg;
eb5c063a 1561 int fp_utf8;
1dd30107
NC		 1562 int buffer_utf8;
1563 SV *read_target;
eb5c063a
NIS		 1564 Size_t got = 0;
1565 Size_t wanted;
1d636c13 1566 bool charstart = FALSE;
87330c3c
JH		 1567 STRLEN charskip = 0;
1568 STRLEN skip = 0;
a0d0e21e
LW		 1569
1570 gv = (GV*)*++MARK;
5b468f54
AMS		 1571 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1572 && gv && (io = GvIO(gv))
1573 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1574 {
2ae324a7 1575 SV *sv;
1576
1577 PUSHMARK(MARK-1);
5b468f54 1578 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1579 ENTER;
864dbfa3 1580 call_method("READ", G_SCALAR);
2ae324a7 1581 LEAVE;
1582 SPAGAIN;
1583 sv = POPs;
1584 SP = ORIGMARK;
1585 PUSHs(sv);
1586 RETURN;
1587 }
1588
a0d0e21e
LW		 1589 if (!gv)
1590 goto say_undef;
748a9306 1591 bufsv = *++MARK;
ff68c719 1592 if (! SvOK(bufsv))
1593 sv_setpvn(bufsv, "", 0);
a0d0e21e 1594 length = SvIVx(*++MARK);
748a9306 1595 SETERRNO(0,0);
a0d0e21e
LW		 1596 if (MARK < SP)
1597 offset = SvIVx(*++MARK);
1598 else
1599 offset = 0;
1600 io = GvIO(gv);
b5fe5ca2
SR		 1601 if (!io || !IoIFP(io)) {
1602 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1603 report_evil_fh(gv, io, PL_op->op_type);
1604 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1605 goto say_undef;
b5fe5ca2 1606 }
0064a8a9 1607 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1608 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1609 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1610 SvUTF8_on(bufsv);
9b9d7ce8 1611 buffer_utf8 = 0;
7d59b7e4
NIS		 1612 }
1613 else {
1614 buffer = SvPV_force(bufsv, blen);
1dd30107 1615 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1616 }
1617 if (length < 0)
1618 DIE(aTHX_ "Negative length");
eb5c063a 1619 wanted = length;
7d59b7e4 1620
d0965105
JH		 1621 charstart = TRUE;
1622 charskip = 0;
87330c3c 1623 skip = 0;
d0965105 1624
a0d0e21e 1625#ifdef HAS_SOCKET
533c011a 1626 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1627 char namebuf[MAXPATHLEN];
17a8c7ba 1628#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1629 bufsize = sizeof (struct sockaddr_in);
1630#else
46fc3d4c 1631 bufsize = sizeof namebuf;
490ab354 1632#endif
abf95952
IZ		 1633#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1634 if (bufsize >= 256)
1635 bufsize = 255;
1636#endif
eb160463 1637 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1638 /* 'offset' means 'flags' here */
eb5c063a 1639 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1640 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1641 if (count < 0)
a0d0e21e 1642 RETPUSHUNDEF;
4107cc59
OF		 1643#ifdef EPOC
1644 /* Bogus return without padding */
1645 bufsize = sizeof (struct sockaddr_in);
1646#endif
eb5c063a 1647 SvCUR_set(bufsv, count);
748a9306
LW		 1648 *SvEND(bufsv) = '\0';
1649 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1650 if (fp_utf8)
1651 SvUTF8_on(bufsv);
748a9306 1652 SvSETMAGIC(bufsv);
aac0dd9a 1653 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1654 if (!(IoFLAGS(io) & IOf_UNTAINT))
1655 SvTAINTED_on(bufsv);
a0d0e21e 1656 SP = ORIGMARK;
46fc3d4c 1657 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1658 PUSHs(TARG);
1659 RETURN;
1660 }
1661#else
911d147d 1662 if (PL_op->op_type == OP_RECV)
cea2e8a9 1663 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1664#endif
eb5c063a
NIS		 1665 if (DO_UTF8(bufsv)) {
1666 /* offset adjust in characters not bytes */
1667 blen = sv_len_utf8(bufsv);
7d59b7e4 1668 }
bbce6d69 1669 if (offset < 0) {
eb160463 1670 if (-offset > (int)blen)
cea2e8a9 1671 DIE(aTHX_ "Offset outside string");
bbce6d69 1672 offset += blen;
1673 }
eb5c063a
NIS		 1674 if (DO_UTF8(bufsv)) {
1675 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1676 if (offset >= (int)blen)
1677 offset += SvCUR(bufsv) - blen;
1678 else
1679 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1680 }
1681 more_bytes:
cd52b7b2 1682 bufsize = SvCUR(bufsv);
1dd30107
NC		 1683 /* Allocating length + offset + 1 isn't perfect in the case of reading
1684 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1685 unduly.
1686 (should be 2 * length + offset + 1, or possibly something longer if
1687 PL_encoding is true) */
eb160463 1688 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1689 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1690 Zero(buffer+bufsize, offset-bufsize, char);
1691 }
eb5c063a 1692 buffer = buffer + offset;
1dd30107
NC		 1693 if (!buffer_utf8) {
1694 read_target = bufsv;
1695 } else {
1696 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1697 concatenate it to the current buffer. */
1698
1699 /* Truncate the existing buffer to the start of where we will be
1700 reading to: */
1701 SvCUR_set(bufsv, offset);
1702
1703 read_target = sv_newmortal();
1704 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1705 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1706 }
eb5c063a 1707
533c011a 1708 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1709#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1710 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1711 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1712 buffer, length, 0);
a7092146
GS		 1713 }
1714 else
1715#endif
1716 {
eb5c063a
NIS		 1717 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1718 buffer, length);
a7092146 1719 }
a0d0e21e
LW		 1720 }
1721 else
1722#ifdef HAS_SOCKET__bad_code_maybe
50952442 1723 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1724 char namebuf[MAXPATHLEN];
490ab354
JH		 1725#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1726 bufsize = sizeof (struct sockaddr_in);
1727#else
46fc3d4c 1728 bufsize = sizeof namebuf;
490ab354 1729#endif
eb5c063a 1730 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1731 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1732 }
1733 else
1734#endif
3b02c43c 1735 {
eb5c063a
NIS		 1736 count = PerlIO_read(IoIFP(io), buffer, length);
1737 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1738 if (count == 0 && PerlIO_error(IoIFP(io)))
1739 count = -1;
3b02c43c 1740 }
eb5c063a 1741 if (count < 0) {
a00b5bd3 1742 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1743 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1744 goto say_undef;
af8c498a 1745 }
1dd30107
NC		 1746 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1747 *SvEND(read_target) = '\0';
1748 (void)SvPOK_only(read_target);
0064a8a9 1749 if (fp_utf8 && !IN_BYTES) {
eb5c063a
NIS		 1750 /* Look at utf8 we got back and count the characters */
1751 char *bend = buffer + count;
1752 while (buffer < bend) {
d0965105
JH		 1753 if (charstart) {
1754 skip = UTF8SKIP(buffer);
1755 charskip = 0;
1756 }
1757 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1758 /* partial character - try for rest of it */
1759 length = skip - (bend-buffer);
1760 offset = bend - SvPVX(bufsv);
d0965105
JH		 1761 charstart = FALSE;
1762 charskip += count;
eb5c063a
NIS		 1763 goto more_bytes;
1764 }
1765 else {
1766 got++;
1767 buffer += skip;
d0965105
JH		 1768 charstart = TRUE;
1769 charskip = 0;
eb5c063a
NIS		 1770 }
1771 }
1772 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1773 provided amount read (count) was what was requested (length)
1774 */
1775 if (got < wanted && count == length) {
d0965105 1776 length = wanted - got;
eb5c063a
NIS		 1777 offset = bend - SvPVX(bufsv);
1778 goto more_bytes;
1779 }
1780 /* return value is character count */
1781 count = got;
1782 SvUTF8_on(bufsv);
1783 }
1dd30107
NC		 1784 else if (buffer_utf8) {
1785 /* Let svcatsv upgrade the bytes we read in to utf8.
1786 The buffer is a mortal so will be freed soon. */
1787 sv_catsv_nomg(bufsv, read_target);
1788 }
748a9306 1789 SvSETMAGIC(bufsv);
aac0dd9a 1790 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1791 if (!(IoFLAGS(io) & IOf_UNTAINT))
1792 SvTAINTED_on(bufsv);
a0d0e21e 1793 SP = ORIGMARK;
eb5c063a 1794 PUSHi(count);
a0d0e21e
LW		 1795 RETURN;
1796
1797 say_undef:
1798 SP = ORIGMARK;
1799 RETPUSHUNDEF;
1800}
1801
1802PP(pp_syswrite)
1803{
27da23d5 1804 dVAR; dSP;
092bebab
JH		 1805 int items = (SP - PL_stack_base) - TOPMARK;
1806 if (items == 2) {
9f089d78 1807 SV *sv;
092bebab 1808 EXTEND(SP, 1);
9f089d78
SB		 1809 sv = sv_2mortal(newSViv(sv_len(*SP)));
1810 PUSHs(sv);
092bebab
JH		 1811 PUTBACK;
1812 }
cea2e8a9 1813 return pp_send();
a0d0e21e
LW		 1814}
1815
1816PP(pp_send)
1817{
27da23d5 1818 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1819 GV *gv;
1820 IO *io;
748a9306 1821 SV *bufsv;
a0d0e21e 1822 char *buffer;
8c99d73e
GS		 1823 Size_t length;
1824 SSize_t retval;
a0d0e21e 1825 STRLEN blen;
1d603a67 1826 MAGIC *mg;
a0d0e21e
LW		 1827
1828 gv = (GV*)*++MARK;
14befaf4 1829 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1830 && gv && (io = GvIO(gv))
1831 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1832 {
1d603a67
GB		 1833 SV *sv;
1834
1835 PUSHMARK(MARK-1);
5b468f54 1836 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1837 ENTER;
864dbfa3 1838 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1839 LEAVE;
1840 SPAGAIN;
1841 sv = POPs;
1842 SP = ORIGMARK;
1843 PUSHs(sv);
1844 RETURN;
1845 }
a0d0e21e
LW		 1846 if (!gv)
1847 goto say_undef;
748a9306 1848 bufsv = *++MARK;
8c99d73e 1849#if Size_t_size > IVSIZE
3c001241 1850 length = (Size_t)SvNVx(*++MARK);
146174a9 1851#else
3c001241 1852 length = (Size_t)SvIVx(*++MARK);
146174a9 1853#endif
3c001241 1854 if ((SSize_t)length < 0)
cea2e8a9 1855 DIE(aTHX_ "Negative length");
748a9306 1856 SETERRNO(0,0);
a0d0e21e
LW		 1857 io = GvIO(gv);
1858 if (!io || !IoIFP(io)) {
8c99d73e 1859 retval = -1;
bc37a18f
RG		 1860 if (ckWARN(WARN_CLOSED))
1861 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1862 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1863 goto say_undef;
1864 }
1865
1866 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1867 if (!SvUTF8(bufsv)) {
1868 bufsv = sv_2mortal(newSVsv(bufsv));
1869 buffer = sv_2pvutf8(bufsv, &blen);
1870 } else
1871 buffer = SvPV(bufsv, blen);
a0d0e21e 1872 }
7d59b7e4 1873 else {
4de5f5ca
JH		 1874 if (DO_UTF8(bufsv)) {
1875 /* Not modifying source SV, so making a temporary copy. */
1876 bufsv = sv_2mortal(newSVsv(bufsv));
1877 sv_utf8_downgrade(bufsv, FALSE);
1878 }
1879 buffer = SvPV(bufsv, blen);
7d59b7e4
NIS		 1880 }
1881
1882 if (PL_op->op_type == OP_SYSWRITE) {
1883 IV offset;
1884 if (DO_UTF8(bufsv)) {
1885 /* length and offset are in chars */
1886 blen = sv_len_utf8(bufsv);
1887 }
bbce6d69 1888 if (MARK < SP) {
a0d0e21e 1889 offset = SvIVx(*++MARK);
bbce6d69 1890 if (offset < 0) {
eb160463 1891 if (-offset > (IV)blen)
cea2e8a9 1892 DIE(aTHX_ "Offset outside string");
bbce6d69 1893 offset += blen;
eb160463 1894 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1895 DIE(aTHX_ "Offset outside string");
bbce6d69 1896 } else
a0d0e21e
LW		 1897 offset = 0;
1898 if (length > blen - offset)
1899 length = blen - offset;
7d59b7e4 1900 if (DO_UTF8(bufsv)) {
c8d31a35 1901 buffer = (char*)utf8_hop((U8 *)buffer, offset);
7d59b7e4
NIS		 1902 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1903 }
1904 else {
1905 buffer = buffer+offset;
1906 }
a7092146 1907#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1908 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1909 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1910 buffer, length, 0);
a7092146
GS		 1911 }
1912 else
1913#endif
1914 {
94e4c244 1915 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1916 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1917 buffer, length);
a7092146 1918 }
a0d0e21e
LW		 1919 }
1920#ifdef HAS_SOCKET
1921 else if (SP > MARK) {
1922 char *sockbuf;
1923 STRLEN mlen;
1924 sockbuf = SvPVx(*++MARK, mlen);
7d59b7e4 1925 /* length is really flags */
8c99d73e
GS		 1926 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1927 length, (struct sockaddr *)sockbuf, mlen);
a0d0e21e
LW		 1928 }
1929 else
7d59b7e4 1930 /* length is really flags */
8c99d73e 1931 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
a0d0e21e
LW		 1932#else
1933 else
cea2e8a9 1934 DIE(aTHX_ PL_no_sock_func, "send");
a0d0e21e 1935#endif
8c99d73e 1936 if (retval < 0)
a0d0e21e
LW		 1937 goto say_undef;
1938 SP = ORIGMARK;
f36eea10
JH		 1939 if (DO_UTF8(bufsv))
1940 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
8c99d73e
GS		 1941#if Size_t_size > IVSIZE
1942 PUSHn(retval);
1943#else
1944 PUSHi(retval);
1945#endif
a0d0e21e
LW		 1946 RETURN;
1947
1948 say_undef:
1949 SP = ORIGMARK;
1950 RETPUSHUNDEF;
1951}
1952
1953PP(pp_recv)
1954{
cea2e8a9 1955 return pp_sysread();
a0d0e21e
LW		 1956}
1957
1958PP(pp_eof)
1959{
27da23d5 1960 dVAR; dSP;
a0d0e21e 1961 GV *gv;
5b468f54 1962 IO *io;
4592e6ca 1963 MAGIC *mg;
a0d0e21e 1964
32da55ab 1965 if (MAXARG == 0) {
146174a9
CB		 1966 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1967 IO *io;
ed2c6b9b 1968 gv = PL_last_in_gv = GvEGV(PL_argvgv);
146174a9
CB		 1969 io = GvIO(gv);
1970 if (io && !IoIFP(io)) {
1971 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1972 IoLINES(io) = 0;
1973 IoFLAGS(io) &= ~IOf_START;
dd374669 1974 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
146174a9
CB		 1975 sv_setpvn(GvSV(gv), "-", 1);
1976 SvSETMAGIC(GvSV(gv));
1977 }
1978 else if (!nextargv(gv))
1979 RETPUSHYES;
1980 }
1981 }
1982 else
1983 gv = PL_last_in_gv; /* eof */
1984 }
a0d0e21e 1985 else
146174a9 1986 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
4592e6ca 1987
5b468f54
AMS		 1988 if (gv && (io = GvIO(gv))
1989 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1990 {
4592e6ca 1991 PUSHMARK(SP);
5b468f54 1992 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 1993 PUTBACK;
1994 ENTER;
864dbfa3 1995 call_method("EOF", G_SCALAR);
4592e6ca
NIS		 1996 LEAVE;
1997 SPAGAIN;
1998 RETURN;
1999 }
2000
54310121 2001 PUSHs(boolSV(!gv || do_eof(gv)));
a0d0e21e
LW		 2002 RETURN;
2003}
2004
2005PP(pp_tell)
2006{
27da23d5 2007 dVAR; dSP; dTARGET;
301e8125 2008 GV *gv;
5b468f54 2009 IO *io;
4592e6ca 2010 MAGIC *mg;
a0d0e21e 2011
32da55ab 2012 if (MAXARG == 0)
3280af22 2013 gv = PL_last_in_gv;
a0d0e21e 2014 else
3280af22 2015 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2016
5b468f54
AMS		 2017 if (gv && (io = GvIO(gv))
2018 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2019 {
4592e6ca 2020 PUSHMARK(SP);
5b468f54 2021 XPUSHs(SvTIED_obj((SV*)io, mg));
4592e6ca
NIS		 2022 PUTBACK;
2023 ENTER;
864dbfa3 2024 call_method("TELL", G_SCALAR);
4592e6ca
NIS		 2025 LEAVE;
2026 SPAGAIN;
2027 RETURN;
2028 }
2029
146174a9
CB		 2030#if LSEEKSIZE > IVSIZE
2031 PUSHn( do_tell(gv) );
2032#else
a0d0e21e 2033 PUSHi( do_tell(gv) );
146174a9 2034#endif
a0d0e21e
LW		 2035 RETURN;
2036}
2037
2038PP(pp_seek)
2039{
cea2e8a9 2040 return pp_sysseek();
137443ea 2041}
2042
2043PP(pp_sysseek)
2044{
27da23d5 2045 dVAR; dSP;
a0d0e21e 2046 GV *gv;
5b468f54 2047 IO *io;
a0d0e21e 2048 int whence = POPi;
146174a9
CB		 2049#if LSEEKSIZE > IVSIZE
2050 Off_t offset = (Off_t)SvNVx(POPs);
2051#else
d9b3e12d 2052 Off_t offset = (Off_t)SvIVx(POPs);
146174a9 2053#endif
4592e6ca 2054 MAGIC *mg;
a0d0e21e 2055
3280af22 2056 gv = PL_last_in_gv = (GV*)POPs;
4592e6ca 2057
5b468f54
AMS		 2058 if (gv && (io = GvIO(gv))
2059 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2060 {
4592e6ca 2061 PUSHMARK(SP);
5b468f54 2062 XPUSHs(SvTIED_obj((SV*)io, mg));
cb50131a
CB		 2063#if LSEEKSIZE > IVSIZE
2064 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2065#else
b448e4fe 2066 XPUSHs(sv_2mortal(newSViv(offset)));
cb50131a 2067#endif
b448e4fe 2068 XPUSHs(sv_2mortal(newSViv(whence)));
4592e6ca
NIS		 2069 PUTBACK;
2070 ENTER;
864dbfa3 2071 call_method("SEEK", G_SCALAR);
4592e6ca
NIS		 2072 LEAVE;
2073 SPAGAIN;
2074 RETURN;
2075 }
2076
533c011a 2077 if (PL_op->op_type == OP_SEEK)
8903cb82 2078 PUSHs(boolSV(do_seek(gv, offset, whence)));
2079 else {
b448e4fe
JH		 2080 Off_t sought = do_sysseek(gv, offset, whence);
2081 if (sought < 0)
146174a9
CB		 2082 PUSHs(&PL_sv_undef);
2083 else {
b448e4fe 2084 SV* sv = sought ?
146174a9 2085#if LSEEKSIZE > IVSIZE
b448e4fe 2086 newSVnv((NV)sought)
146174a9 2087#else
b448e4fe 2088 newSViv(sought)
146174a9
CB		 2089#endif
2090 : newSVpvn(zero_but_true, ZBTLEN);
2091 PUSHs(sv_2mortal(sv));
2092 }
8903cb82 2093 }
a0d0e21e
LW		 2094 RETURN;
2095}
2096
2097PP(pp_truncate)
2098{
39644a26 2099 dSP;
8c99d73e
GS		 2100 /* There seems to be no consensus on the length type of truncate()
2101 * and ftruncate(), both off_t and size_t have supporters. In
2102 * general one would think that when using large files, off_t is
2103 * at least as wide as size_t, so using an off_t should be okay. */
2104 /* XXX Configure probe for the length type of *truncate() needed XXX */
2105 Off_t len;
a0d0e21e 2106
25342a55 2107#if Off_t_size > IVSIZE
8c99d73e
GS		 2108 len = (Off_t)POPn;
2109#else
2110 len = (Off_t)POPi;
2111#endif
2112 /* Checking for length < 0 is problematic as the type might or
301e8125 2113 * might not be signed: if it is not, clever compilers will moan. */
8c99d73e 2114 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
748a9306 2115 SETERRNO(0,0);
d05c1ba0 2116 {
d05c1ba0
JH		 2117 int result = 1;
2118 GV *tmpgv;
090bf15b
SR		 2119 IO *io;
2120
d05c1ba0 2121 if (PL_op->op_flags & OPf_SPECIAL) {
7a5fd60d 2122 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
d05c1ba0 2123
090bf15b
SR		 2124 do_ftruncate_gv:
2125 if (!GvIO(tmpgv))
2126 result = 0;
d05c1ba0 2127 else {
090bf15b
SR		 2128 PerlIO *fp;
2129 io = GvIOp(tmpgv);
2130 do_ftruncate_io:
2131 TAINT_PROPER("truncate");
2132 if (!(fp = IoIFP(io))) {
2133 result = 0;
2134 }
2135 else {
2136 PerlIO_flush(fp);
cbdc8872 2137#ifdef HAS_TRUNCATE
090bf15b 2138 if (ftruncate(PerlIO_fileno(fp), len) < 0)
301e8125 2139#else
090bf15b 2140 if (my_chsize(PerlIO_fileno(fp), len) < 0)
cbdc8872 2141#endif
090bf15b
SR		 2142 result = 0;
2143 }
d05c1ba0 2144 }
cbdc8872 2145 }
d05c1ba0
JH		 2146 else {
2147 SV *sv = POPs;
2148 char *name;
7a5fd60d
NC		 2149 STRLEN n_a;
2150
d05c1ba0
JH		 2151 if (SvTYPE(sv) == SVt_PVGV) {
2152 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2153 goto do_ftruncate_gv;
d05c1ba0
JH		 2154 }
2155 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2156 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2157 goto do_ftruncate_gv;
2158 }
2159 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2160 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2161 goto do_ftruncate_io;
d05c1ba0 2162 }
1e422769 2163
d05c1ba0
JH		 2164 name = SvPV(sv, n_a);
2165 TAINT_PROPER("truncate");
cbdc8872 2166#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2167 if (truncate(name, len) < 0)
2168 result = 0;
cbdc8872 2169#else
d05c1ba0
JH		 2170 {
2171 int tmpfd;
2172
2173 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2174 result = 0;
d05c1ba0
JH		 2175 else {
2176 if (my_chsize(tmpfd, len) < 0)
2177 result = 0;
2178 PerlLIO_close(tmpfd);
2179 }
cbdc8872 2180 }
a0d0e21e 2181#endif
d05c1ba0 2182 }
a0d0e21e 2183
d05c1ba0
JH		 2184 if (result)
2185 RETPUSHYES;
2186 if (!errno)
93189314 2187 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2188 RETPUSHUNDEF;
2189 }
a0d0e21e
LW		 2190}
2191
2192PP(pp_fcntl)
2193{
cea2e8a9 2194 return pp_ioctl();
a0d0e21e
LW		 2195}
2196
2197PP(pp_ioctl)
2198{
39644a26 2199 dSP; dTARGET;
748a9306 2200 SV *argsv = POPs;
3bb7c1b4 2201 unsigned int func = POPu;
e1ec3a88 2202 const int optype = PL_op->op_type;
a0d0e21e 2203 char *s;
324aa91a 2204 IV retval;
a0d0e21e 2205 GV *gv = (GV*)POPs;
c289d2f7 2206 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2207
748a9306 2208 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
93189314 2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2212 RETPUSHUNDEF;
2213 }
2214
748a9306 2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2216 STRLEN len;
324aa91a 2217 STRLEN need;
748a9306 2218 s = SvPV_force(argsv, len);
324aa91a
HF		 2219 need = IOCPARM_LEN(func);
2220 if (len < need) {
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
a0d0e21e
LW		 2223 }
2224
748a9306 2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2226 }
2227 else {
748a9306 2228 retval = SvIV(argsv);
c529f79d 2229 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2230 }
2231
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2233
2234 if (optype == OP_IOCTL)
2235#ifdef HAS_IOCTL
76e3520e 2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2237#else
cea2e8a9 2238 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2239#endif
2240 else
c214f4ad
WB		 2241#ifndef HAS_FCNTL
2242 DIE(aTHX_ "fcntl is not implemented");
2243#else
55497cff 2244#if defined(OS2) && defined(__EMX__)
760ac839 2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2246#else
760ac839 2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2248#endif
6652bd42 2249#endif
a0d0e21e 2250
6652bd42 2251#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2252 if (SvPOK(argsv)) {
2253 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2255 OP_NAME(PL_op));
748a9306
LW		 2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2258 }
2259
2260 if (retval == -1)
2261 RETPUSHUNDEF;
2262 if (retval != 0) {
2263 PUSHi(retval);
2264 }
2265 else {
8903cb82 2266 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2267 }
4808266b 2268#endif
c214f4ad 2269 RETURN;
a0d0e21e
LW		 2270}
2271
2272PP(pp_flock)
2273{
9cad6237 2274#ifdef FLOCK
39644a26 2275 dSP; dTARGET;
a0d0e21e
LW		 2276 I32 value;
2277 int argtype;
2278 GV *gv;
bc37a18f 2279 IO *io = NULL;
760ac839 2280 PerlIO *fp;
16d20bd9 2281
a0d0e21e 2282 argtype = POPi;
32da55ab 2283 if (MAXARG == 0)
3280af22 2284 gv = PL_last_in_gv;
a0d0e21e
LW		 2285 else
2286 gv = (GV*)POPs;
bc37a18f
RG		 2287 if (gv && (io = GvIO(gv)))
2288 fp = IoIFP(io);
2289 else {
a0d0e21e 2290 fp = Nullfp;
bc37a18f
RG		 2291 io = NULL;
2292 }
a0d0e21e 2293 if (fp) {
68dc0745 2294 (void)PerlIO_flush(fp);
76e3520e 2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2296 }
cb50131a 2297 else {
bc37a18f
RG		 2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2300 value = 0;
93189314 2301 SETERRNO(EBADF,RMS_IFI);
cb50131a 2302 }
a0d0e21e
LW		 2303 PUSHi(value);
2304 RETURN;
2305#else
cea2e8a9 2306 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2307#endif
2308}
2309
2310/* Sockets. */
2311
2312PP(pp_socket)
2313{
a0d0e21e 2314#ifdef HAS_SOCKET
9cad6237 2315 dSP;
a0d0e21e
LW		 2316 GV *gv;
2317 register IO *io;
2318 int protocol = POPi;
2319 int type = POPi;
2320 int domain = POPi;
2321 int fd;
2322
2323 gv = (GV*)POPs;
c289d2f7 2324 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2325
c289d2f7
JH		 2326 if (!gv || !io) {
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2329 if (IoIFP(io))
2330 do_close(gv, FALSE);
93189314 2331 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2332 RETPUSHUNDEF;
2333 }
2334
57171420
BS		 2335 if (IoIFP(io))
2336 do_close(gv, FALSE);
2337
a0d0e21e 2338 TAINT_PROPER("socket");
6ad3d225 2339 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2340 if (fd < 0)
2341 RETPUSHUNDEF;
460c8493
IZ		 2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2344 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2345 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2349 RETPUSHUNDEF;
2350 }
8d2a6795
GS		 2351#if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2353#endif
a0d0e21e 2354
d5ff79b3
OF		 2355#ifdef EPOC
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2357#endif
2358
a0d0e21e
LW		 2359 RETPUSHYES;
2360#else
cea2e8a9 2361 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2362#endif
2363}
2364
2365PP(pp_sockpair)
2366{
c95c94b1 2367#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2368 dSP;
a0d0e21e
LW		 2369 GV *gv1;
2370 GV *gv2;
2371 register IO *io1;
2372 register IO *io2;
2373 int protocol = POPi;
2374 int type = POPi;
2375 int domain = POPi;
2376 int fd[2];
2377
2378 gv2 = (GV*)POPs;
2379 gv1 = (GV*)POPs;
c289d2f7
JH		 2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2384 if (!gv1 || !io1)
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2386 if (!gv2 || !io2)
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2388 }
2389 if (IoIFP(io1))
2390 do_close(gv1, FALSE);
2391 if (IoIFP(io2))
2392 do_close(gv2, FALSE);
a0d0e21e 2393 RETPUSHUNDEF;
c289d2f7 2394 }
a0d0e21e 2395
dc0d0a5f
JH		 2396 if (IoIFP(io1))
2397 do_close(gv1, FALSE);
2398 if (IoIFP(io2))
2399 do_close(gv2, FALSE);
57171420 2400
a0d0e21e 2401 TAINT_PROPER("socketpair");
6ad3d225 2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2403 RETPUSHUNDEF;
460c8493
IZ		 2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2406 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2409 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2417 RETPUSHUNDEF;
2418 }
8d2a6795
GS		 2419#if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2422#endif
a0d0e21e
LW		 2423
2424 RETPUSHYES;
2425#else
cea2e8a9 2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2427#endif
2428}
2429
2430PP(pp_bind)
2431{
a0d0e21e 2432#ifdef HAS_SOCKET
9cad6237 2433 dSP;
eec2d3df 2434#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
eec2d3df 2437#endif
748a9306 2438 SV *addrsv = POPs;
a0d0e21e
LW		 2439 char *addr;
2440 GV *gv = (GV*)POPs;
2441 register IO *io = GvIOn(gv);
2442 STRLEN len;
eec2d3df
GS		 2443 int bind_ok = 0;
2444#ifdef MPE
2445 int mpeprivmode = 0;
2446#endif
a0d0e21e
LW		 2447
2448 if (!io || !IoIFP(io))
2449 goto nuts;
2450
748a9306 2451 addr = SvPV(addrsv, len);
a0d0e21e 2452 TAINT_PROPER("bind");
eec2d3df
GS		 2453#ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2461 mpeprivmode = 1;
2462 }
2463 }
2464#endif /* MPE */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2467 bind_ok = 1;
2468
2469#ifdef MPE /* Switch back to USER mode */
2470 if (mpeprivmode)
2471 GETUSERMODE();
2472#endif /* MPE */
2473
2474 if (bind_ok)
a0d0e21e
LW		 2475 RETPUSHYES;
2476 else
2477 RETPUSHUNDEF;
2478
2479nuts:
599cee73 2480 if (ckWARN(WARN_CLOSED))
bc37a18f 2481 report_evil_fh(gv, io, PL_op->op_type);
93189314 2482 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2483 RETPUSHUNDEF;
2484#else
cea2e8a9 2485 DIE(aTHX_ PL_no_sock_func, "bind");
a0d0e21e
LW		 2486#endif
2487}
2488
2489PP(pp_connect)
2490{
a0d0e21e 2491#ifdef HAS_SOCKET
9cad6237 2492 dSP;
748a9306 2493 SV *addrsv = POPs;
a0d0e21e
LW		 2494 char *addr;
2495 GV *gv = (GV*)POPs;
2496 register IO *io = GvIOn(gv);
2497 STRLEN len;
2498
2499 if (!io || !IoIFP(io))
2500 goto nuts;
2501
748a9306 2502 addr = SvPV(addrsv, len);
a0d0e21e 2503 TAINT_PROPER("connect");
6ad3d225 2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
a0d0e21e
LW		 2505 RETPUSHYES;
2506 else
2507 RETPUSHUNDEF;
2508
2509nuts:
599cee73 2510 if (ckWARN(WARN_CLOSED))
bc37a18f 2511 report_evil_fh(gv, io, PL_op->op_type);
93189314 2512 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2513 RETPUSHUNDEF;
2514#else
cea2e8a9 2515 DIE(aTHX_ PL_no_sock_func, "connect");
a0d0e21e
LW		 2516#endif
2517}
2518
2519PP(pp_listen)
2520{
a0d0e21e 2521#ifdef HAS_SOCKET
9cad6237 2522 dSP;
a0d0e21e
LW		 2523 int backlog = POPi;
2524 GV *gv = (GV*)POPs;
c289d2f7 2525 register IO *io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2526
c289d2f7 2527 if (!gv || !io || !IoIFP(io))
a0d0e21e
LW		 2528 goto nuts;
2529
6ad3d225 2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
a0d0e21e
LW		 2531 RETPUSHYES;
2532 else
2533 RETPUSHUNDEF;
2534
2535nuts:
599cee73 2536 if (ckWARN(WARN_CLOSED))
bc37a18f 2537 report_evil_fh(gv, io, PL_op->op_type);
93189314 2538 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2539 RETPUSHUNDEF;
2540#else
cea2e8a9 2541 DIE(aTHX_ PL_no_sock_func, "listen");
a0d0e21e
LW		 2542#endif
2543}
2544
2545PP(pp_accept)
2546{
a0d0e21e 2547#ifdef HAS_SOCKET
9cad6237 2548 dSP; dTARGET;
a0d0e21e
LW		 2549 GV *ngv;
2550 GV *ggv;
2551 register IO *nstio;
2552 register IO *gstio;
93d47a36
JH		 2553 char namebuf[MAXPATHLEN];
2554#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2556#else
2557 Sock_size_t len = sizeof namebuf;
2558#endif
a0d0e21e
LW		 2559 int fd;
2560
2561 ggv = (GV*)POPs;
2562 ngv = (GV*)POPs;
2563
2564 if (!ngv)
2565 goto badexit;
2566 if (!ggv)
2567 goto nuts;
2568
2569 gstio = GvIO(ggv);
2570 if (!gstio || !IoIFP(gstio))
2571 goto nuts;
2572
2573 nstio = GvIOn(ngv);
93d47a36 2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
a0d0e21e
LW		 2575 if (fd < 0)
2576 goto badexit;
a70048fb
AB		 2577 if (IoIFP(nstio))
2578 do_close(ngv, FALSE);
460c8493
IZ		 2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2581 IoTYPE(nstio) = IoTYPE_SOCKET;
a0d0e21e 2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
760ac839
LW		 2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
6ad3d225 2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
a0d0e21e
LW		 2586 goto badexit;
2587 }
8d2a6795
GS		 2588#if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2590#endif
a0d0e21e 2591
ed79a026 2592#ifdef EPOC
93d47a36 2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
a9f1f6b0 2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
ed79a026 2595#endif
381c1bae 2596#ifdef __SCO_VERSION__
93d47a36 2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
381c1bae 2598#endif
ed79a026 2599
93d47a36 2600 PUSHp(namebuf, len);
a0d0e21e
LW		 2601 RETURN;
2602
2603nuts:
599cee73 2604 if (ckWARN(WARN_CLOSED))
bc37a18f 2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
93189314 2606 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2607
2608badexit:
2609 RETPUSHUNDEF;
2610
2611#else
cea2e8a9 2612 DIE(aTHX_ PL_no_sock_func, "accept");
a0d0e21e
LW		 2613#endif
2614}
2615
2616PP(pp_shutdown)
2617{
a0d0e21e 2618#ifdef HAS_SOCKET
9cad6237 2619 dSP; dTARGET;
a0d0e21e
LW		 2620 int how = POPi;
2621 GV *gv = (GV*)POPs;
2622 register IO *io = GvIOn(gv);
2623
2624 if (!io || !IoIFP(io))
2625 goto nuts;
2626
6ad3d225 2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
a0d0e21e
LW		 2628 RETURN;
2629
2630nuts:
599cee73 2631 if (ckWARN(WARN_CLOSED))
bc37a18f 2632 report_evil_fh(gv, io, PL_op->op_type);
93189314 2633 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2634 RETPUSHUNDEF;
2635#else
cea2e8a9 2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
a0d0e21e
LW		 2637#endif
2638}
2639
2640PP(pp_gsockopt)
2641{
2642#ifdef HAS_SOCKET
cea2e8a9 2643 return pp_ssockopt();
a0d0e21e 2644#else
cea2e8a9 2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
a0d0e21e
LW		 2646#endif
2647}
2648
2649PP(pp_ssockopt)
2650{
a0d0e21e 2651#ifdef HAS_SOCKET
9cad6237 2652 dSP;
533c011a 2653 int optype = PL_op->op_type;
a0d0e21e
LW		 2654 SV *sv;
2655 int fd;
2656 unsigned int optname;
2657 unsigned int lvl;
2658 GV *gv;
2659 register IO *io;
1e422769 2660 Sock_size_t len;
a0d0e21e
LW		 2661
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2664 else
2665 sv = POPs;
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2668
2669 gv = (GV*)POPs;
2670 io = GvIOn(gv);
2671 if (!io || !IoIFP(io))
2672 goto nuts;
2673
760ac839 2674 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2675 switch (optype) {
2676 case OP_GSOCKOPT:
748a9306 2677 SvGROW(sv, 257);
a0d0e21e 2678 (void)SvPOK_only(sv);
748a9306
LW		 2679 SvCUR_set(sv,256);
2680 *SvEND(sv) ='\0';
1e422769 2681 len = SvCUR(sv);
6ad3d225 2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
a0d0e21e 2683 goto nuts2;
1e422769 2684 SvCUR_set(sv, len);
748a9306 2685 *SvEND(sv) ='\0';
a0d0e21e
LW		 2686 PUSHs(sv);
2687 break;
2688 case OP_SSOCKOPT: {
1e422769 2689 char *buf;
2690 int aint;
2691 if (SvPOKp(sv)) {
2d8e6c8d
GS		 2692 STRLEN l;
2693 buf = SvPV(sv, l);
2694 len = l;
1e422769 2695 }
56ee1660 2696 else {
a0d0e21e
LW		 2697 aint = (int)SvIV(sv);
2698 buf = (char*)&aint;
2699 len = sizeof(int);
2700 }
6ad3d225 2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
a0d0e21e 2702 goto nuts2;
3280af22 2703 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 2704 }
2705 break;
2706 }
2707 RETURN;
2708
2709nuts:
599cee73 2710 if (ckWARN(WARN_CLOSED))
bc37a18f 2711 report_evil_fh(gv, io, optype);
93189314 2712 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2713nuts2:
2714 RETPUSHUNDEF;
2715
2716#else
cea2e8a9 2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
a0d0e21e
LW		 2718#endif
2719}
2720
2721PP(pp_getsockname)
2722{
2723#ifdef HAS_SOCKET
cea2e8a9 2724 return pp_getpeername();
a0d0e21e 2725#else
cea2e8a9 2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
a0d0e21e
LW		 2727#endif
2728}
2729
2730PP(pp_getpeername)
2731{
a0d0e21e 2732#ifdef HAS_SOCKET
9cad6237 2733 dSP;
533c011a 2734 int optype = PL_op->op_type;
a0d0e21e
LW		 2735 SV *sv;
2736 int fd;
2737 GV *gv = (GV*)POPs;
2738 register IO *io = GvIOn(gv);
1e422769 2739 Sock_size_t len;
a0d0e21e
LW		 2740
2741 if (!io || !IoIFP(io))
2742 goto nuts;
2743
2744 sv = sv_2mortal(NEWSV(22, 257));
748a9306 2745 (void)SvPOK_only(sv);
1e422769 2746 len = 256;
2747 SvCUR_set(sv, len);
748a9306 2748 *SvEND(sv) ='\0';
760ac839 2749 fd = PerlIO_fileno(IoIFP(io));
a0d0e21e
LW		 2750 switch (optype) {
2751 case OP_GETSOCKNAME:
6ad3d225 2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e
LW		 2753 goto nuts2;
2754 break;
2755 case OP_GETPEERNAME:
6ad3d225 2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
a0d0e21e 2757 goto nuts2;
490ab354
JH		 2758#if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2759 {
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2762 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2764 sizeof(u_short) + sizeof(struct in_addr))) {
301e8125 2765 goto nuts2;
490ab354
JH		 2766 }
2767 }
2768#endif
a0d0e21e
LW		 2769 break;
2770 }
13826f2c
CS		 2771#ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
1e422769 2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
13826f2c 2776#endif
1e422769 2777 SvCUR_set(sv, len);
748a9306 2778 *SvEND(sv) ='\0';
a0d0e21e
LW		 2779 PUSHs(sv);
2780 RETURN;
2781
2782nuts:
599cee73 2783 if (ckWARN(WARN_CLOSED))
bc37a18f 2784 report_evil_fh(gv, io, optype);
93189314 2785 SETERRNO(EBADF,SS_IVCHAN);
a0d0e21e
LW		 2786nuts2:
2787 RETPUSHUNDEF;
2788
2789#else
cea2e8a9 2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
a0d0e21e
LW		 2791#endif
2792}
2793
2794/* Stat calls. */
2795
2796PP(pp_lstat)
2797{
cea2e8a9 2798 return pp_stat();
a0d0e21e
LW		 2799}
2800
2801PP(pp_stat)
2802{
39644a26 2803 dSP;
2dd78f96 2804 GV *gv;
54310121 2805 I32 gimme;
a0d0e21e 2806 I32 max = 13;
2d8e6c8d 2807 STRLEN n_a;
a0d0e21e 2808
533c011a 2809 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2810 gv = cGVOP_gv;
8a4e5b40 2811 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2812 if (gv != PL_defgv) {
2813 if (ckWARN(WARN_IO))
9014280d 2814 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2815 "lstat() on filehandle %s", GvENAME(gv));
2816 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2817 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2818 }
2819
748a9306 2820 do_fstat:
2dd78f96 2821 if (gv != PL_defgv) {
3280af22 2822 PL_laststype = OP_STAT;
2dd78f96 2823 PL_statgv = gv;
3280af22 2824 sv_setpv(PL_statname, "");
2dd78f96
JH		 2825 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2826 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2827 }
9ddeeac9 2828 if (PL_laststatval < 0) {
2dd78f96
JH		 2829 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2830 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2831 max = 0;
9ddeeac9 2832 }
a0d0e21e
LW		 2833 }
2834 else {
748a9306
LW		 2835 SV* sv = POPs;
2836 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2837 gv = (GV*)sv;
748a9306
LW		 2838 goto do_fstat;
2839 }
2840 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2841 gv = (GV*)SvRV(sv);
5d3e98de 2842 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2843 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2844 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2845 goto do_fstat;
2846 }
2d8e6c8d 2847 sv_setpv(PL_statname, SvPV(sv,n_a));
3280af22 2848 PL_statgv = Nullgv;
533c011a
NIS		 2849 PL_laststype = PL_op->op_type;
2850 if (PL_op->op_type == OP_LSTAT)
2d8e6c8d 2851 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
a0d0e21e 2852 else
2d8e6c8d 2853 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
3280af22 2854 if (PL_laststatval < 0) {
2d8e6c8d 2855 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 2856 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2857 max = 0;
2858 }
2859 }
2860
54310121 2861 gimme = GIMME_V;
2862 if (gimme != G_ARRAY) {
2863 if (gimme != G_VOID)
2864 XPUSHs(boolSV(max));
2865 RETURN;
a0d0e21e
LW		 2866 }
2867 if (max) {
36477c24 2868 EXTEND(SP, max);
2869 EXTEND_MORTAL(max);
1ff81528
PL		 2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2874#if Uid_t_size > IVSIZE
2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2876#else
23dcd6c8 2877# if Uid_t_sign <= 0
1ff81528 2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2879# else
2880 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2881# endif
146174a9 2882#endif
301e8125 2883#if Gid_t_size > IVSIZE
146174a9
CB		 2884 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2885#else
23dcd6c8 2886# if Gid_t_sign <= 0
1ff81528 2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2888# else
2889 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2890# endif
146174a9 2891#endif
cbdc8872 2892#ifdef USE_STAT_RDEV
1ff81528 2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2894#else
79cb57f6 2895 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2896#endif
146174a9 2897#if Off_t_size > IVSIZE
4a9d6100 2898 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2899#else
1ff81528 2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2901#endif
cbdc8872 2902#ifdef BIG_TIME
172ae379
JH		 2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2906#else
1ff81528
PL		 2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2910#endif
a0d0e21e 2911#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2914#else
79cb57f6
GS		 2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2917#endif
2918 }
2919 RETURN;
2920}
2921
fbb0b3b3
RGS		 2922/* This macro is used by the stacked filetest operators :
2923 * if the previous filetest failed, short-circuit and pass its value.
2924 * Else, discard it from the stack and continue. --rgs
2925 */
2926#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2927 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2928 else { (void)POPs; PUTBACK; } \
2929 }
2930
a0d0e21e
LW		 2931PP(pp_ftrread)
2932{
9cad6237 2933 I32 result;
2a3ff820 2934 dSP;
fbb0b3b3 2935 STACKED_FTEST_CHECK;
5ff3f7a4 2936#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2937 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2938 STRLEN n_a;
43b06338 2939 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2940 if (result == 0)
2941 RETPUSHYES;
2942 if (result < 0)
2943 RETPUSHUNDEF;
2944 RETPUSHNO;
22865c03
GS		 2945 }
2946 else
cea2e8a9 2947 result = my_stat();
5ff3f7a4 2948#else
cea2e8a9 2949 result = my_stat();
5ff3f7a4 2950#endif
22865c03 2951 SPAGAIN;
a0d0e21e
LW		 2952 if (result < 0)
2953 RETPUSHUNDEF;
3280af22 2954 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2955 RETPUSHYES;
2956 RETPUSHNO;
2957}
2958
2959PP(pp_ftrwrite)
2960{
9cad6237 2961 I32 result;
2a3ff820 2962 dSP;
fbb0b3b3 2963 STACKED_FTEST_CHECK;
5ff3f7a4 2964#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2965 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2966 STRLEN n_a;
43b06338 2967 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2968 if (result == 0)
2969 RETPUSHYES;
2970 if (result < 0)
2971 RETPUSHUNDEF;
2972 RETPUSHNO;
22865c03
GS		 2973 }
2974 else
cea2e8a9 2975 result = my_stat();
5ff3f7a4 2976#else
cea2e8a9 2977 result = my_stat();
5ff3f7a4 2978#endif
22865c03 2979 SPAGAIN;
a0d0e21e
LW		 2980 if (result < 0)
2981 RETPUSHUNDEF;
3280af22 2982 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2983 RETPUSHYES;
2984 RETPUSHNO;
2985}
2986
2987PP(pp_ftrexec)
2988{
9cad6237 2989 I32 result;
2a3ff820 2990 dSP;
fbb0b3b3 2991 STACKED_FTEST_CHECK;
5ff3f7a4 2992#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2993 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 2994 STRLEN n_a;
43b06338 2995 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2996 if (result == 0)
2997 RETPUSHYES;
2998 if (result < 0)
2999 RETPUSHUNDEF;
3000 RETPUSHNO;
22865c03
GS		 3001 }
3002 else
cea2e8a9 3003 result = my_stat();
5ff3f7a4 3004#else
cea2e8a9 3005 result = my_stat();
5ff3f7a4 3006#endif
22865c03 3007 SPAGAIN;
a0d0e21e
LW		 3008 if (result < 0)
3009 RETPUSHUNDEF;
3280af22 3010 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3011 RETPUSHYES;
3012 RETPUSHNO;
3013}
3014
3015PP(pp_fteread)
3016{
9cad6237 3017 I32 result;
2a3ff820 3018 dSP;
fbb0b3b3 3019 STACKED_FTEST_CHECK;
5ff3f7a4 3020#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3021 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3022 STRLEN n_a;
43b06338 3023 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3024 if (result == 0)
3025 RETPUSHYES;
3026 if (result < 0)
3027 RETPUSHUNDEF;
3028 RETPUSHNO;
22865c03
GS		 3029 }
3030 else
cea2e8a9 3031 result = my_stat();
5ff3f7a4 3032#else
cea2e8a9 3033 result = my_stat();
5ff3f7a4 3034#endif
22865c03 3035 SPAGAIN;
a0d0e21e
LW		 3036 if (result < 0)
3037 RETPUSHUNDEF;
3280af22 3038 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3039 RETPUSHYES;
3040 RETPUSHNO;
3041}
3042
3043PP(pp_ftewrite)
3044{
9cad6237 3045 I32 result;
2a3ff820 3046 dSP;
fbb0b3b3 3047 STACKED_FTEST_CHECK;
5ff3f7a4 3048#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3049 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3050 STRLEN n_a;
43b06338 3051 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3052 if (result == 0)
3053 RETPUSHYES;
3054 if (result < 0)
3055 RETPUSHUNDEF;
3056 RETPUSHNO;
22865c03
GS		 3057 }
3058 else
cea2e8a9 3059 result = my_stat();
5ff3f7a4 3060#else
cea2e8a9 3061 result = my_stat();
5ff3f7a4 3062#endif
22865c03 3063 SPAGAIN;
a0d0e21e
LW		 3064 if (result < 0)
3065 RETPUSHUNDEF;
3280af22 3066 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3067 RETPUSHYES;
3068 RETPUSHNO;
3069}
3070
3071PP(pp_fteexec)
3072{
9cad6237 3073 I32 result;
2a3ff820 3074 dSP;
fbb0b3b3 3075 STACKED_FTEST_CHECK;
5ff3f7a4 3076#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3077 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
fbb0b3b3 3078 STRLEN n_a;
43b06338 3079 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3080 if (result == 0)
3081 RETPUSHYES;
3082 if (result < 0)
3083 RETPUSHUNDEF;
3084 RETPUSHNO;
22865c03
GS		 3085 }
3086 else
cea2e8a9 3087 result = my_stat();
5ff3f7a4 3088#else
cea2e8a9 3089 result = my_stat();
5ff3f7a4 3090#endif
22865c03 3091 SPAGAIN;
a0d0e21e
LW		 3092 if (result < 0)
3093 RETPUSHUNDEF;
3280af22 3094 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3095 RETPUSHYES;
3096 RETPUSHNO;
3097}
3098
3099PP(pp_ftis)
3100{
fbb0b3b3 3101 I32 result;
2a3ff820 3102 dSP;
fbb0b3b3
RGS		 3103 STACKED_FTEST_CHECK;
3104 result = my_stat();
3105 SPAGAIN;
a0d0e21e
LW		 3106 if (result < 0)
3107 RETPUSHUNDEF;
3108 RETPUSHYES;
3109}
3110
3111PP(pp_fteowned)
3112{
cea2e8a9 3113 return pp_ftrowned();
a0d0e21e
LW		 3114}
3115
3116PP(pp_ftrowned)
3117{
fbb0b3b3 3118 I32 result;
2a3ff820 3119 dSP;
fbb0b3b3
RGS		 3120 STACKED_FTEST_CHECK;
3121 result = my_stat();
3122 SPAGAIN;
a0d0e21e
LW		 3123 if (result < 0)
3124 RETPUSHUNDEF;
146174a9
CB		 3125 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3126 PL_euid : PL_uid) )
a0d0e21e
LW		 3127 RETPUSHYES;
3128 RETPUSHNO;
3129}
3130
3131PP(pp_ftzero)
3132{
fbb0b3b3 3133 I32 result;
2a3ff820 3134 dSP;
fbb0b3b3
RGS		 3135 STACKED_FTEST_CHECK;
3136 result = my_stat();
3137 SPAGAIN;
a0d0e21e
LW		 3138 if (result < 0)
3139 RETPUSHUNDEF;
146174a9 3140 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3141 RETPUSHYES;
3142 RETPUSHNO;
3143}
3144
3145PP(pp_ftsize)
3146{
fbb0b3b3 3147 I32 result;
2a3ff820 3148 dSP; dTARGET;
fbb0b3b3
RGS		 3149 STACKED_FTEST_CHECK;
3150 result = my_stat();
3151 SPAGAIN;
a0d0e21e
LW		 3152 if (result < 0)
3153 RETPUSHUNDEF;
146174a9
CB		 3154#if Off_t_size > IVSIZE
3155 PUSHn(PL_statcache.st_size);
3156#else
3280af22 3157 PUSHi(PL_statcache.st_size);
146174a9 3158#endif
a0d0e21e
LW		 3159 RETURN;
3160}
3161
3162PP(pp_ftmtime)
3163{
fbb0b3b3 3164 I32 result;
2a3ff820 3165 dSP; dTARGET;
fbb0b3b3
RGS		 3166 STACKED_FTEST_CHECK;
3167 result = my_stat();
3168 SPAGAIN;
a0d0e21e
LW		 3169 if (result < 0)
3170 RETPUSHUNDEF;
a80d47c2 3171 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3172 RETURN;
3173}
3174
3175PP(pp_ftatime)
3176{
fbb0b3b3 3177 I32 result;
2a3ff820 3178 dSP; dTARGET;
fbb0b3b3
RGS		 3179 STACKED_FTEST_CHECK;
3180 result = my_stat();
3181 SPAGAIN;
a0d0e21e
LW		 3182 if (result < 0)
3183 RETPUSHUNDEF;
a80d47c2 3184 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3185 RETURN;
3186}
3187
3188PP(pp_ftctime)
3189{
fbb0b3b3 3190 I32 result;
2a3ff820 3191 dSP; dTARGET;
fbb0b3b3
RGS		 3192 STACKED_FTEST_CHECK;
3193 result = my_stat();
3194 SPAGAIN;
a0d0e21e
LW		 3195 if (result < 0)
3196 RETPUSHUNDEF;
a80d47c2 3197 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3198 RETURN;
3199}
3200
3201PP(pp_ftsock)
3202{
fbb0b3b3 3203 I32 result;
2a3ff820 3204 dSP;
fbb0b3b3
RGS		 3205 STACKED_FTEST_CHECK;
3206 result = my_stat();
3207 SPAGAIN;
a0d0e21e
LW		 3208 if (result < 0)
3209 RETPUSHUNDEF;
3280af22 3210 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3211 RETPUSHYES;
3212 RETPUSHNO;
3213}
3214
3215PP(pp_ftchr)
3216{
fbb0b3b3 3217 I32 result;
2a3ff820 3218 dSP;
fbb0b3b3
RGS		 3219 STACKED_FTEST_CHECK;
3220 result = my_stat();
3221 SPAGAIN;
a0d0e21e
LW		 3222 if (result < 0)
3223 RETPUSHUNDEF;
3280af22 3224 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3225 RETPUSHYES;
3226 RETPUSHNO;
3227}
3228
3229PP(pp_ftblk)
3230{
fbb0b3b3 3231 I32 result;
2a3ff820 3232 dSP;
fbb0b3b3
RGS		 3233 STACKED_FTEST_CHECK;
3234 result = my_stat();
3235 SPAGAIN;
a0d0e21e
LW		 3236 if (result < 0)
3237 RETPUSHUNDEF;
3280af22 3238 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3239 RETPUSHYES;
3240 RETPUSHNO;
3241}
3242
3243PP(pp_ftfile)
3244{
fbb0b3b3 3245 I32 result;
2a3ff820 3246 dSP;
fbb0b3b3
RGS		 3247 STACKED_FTEST_CHECK;
3248 result = my_stat();
3249 SPAGAIN;
a0d0e21e
LW		 3250 if (result < 0)
3251 RETPUSHUNDEF;
3280af22 3252 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3253 RETPUSHYES;
3254 RETPUSHNO;
3255}
3256
3257PP(pp_ftdir)
3258{
fbb0b3b3 3259 I32 result;
2a3ff820 3260 dSP;
fbb0b3b3
RGS		 3261 STACKED_FTEST_CHECK;
3262 result = my_stat();
3263 SPAGAIN;
a0d0e21e
LW		 3264 if (result < 0)
3265 RETPUSHUNDEF;
3280af22 3266 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3267 RETPUSHYES;
3268 RETPUSHNO;
3269}
3270
3271PP(pp_ftpipe)
3272{
fbb0b3b3 3273 I32 result;
2a3ff820 3274 dSP;
fbb0b3b3
RGS		 3275 STACKED_FTEST_CHECK;
3276 result = my_stat();
3277 SPAGAIN;
a0d0e21e
LW		 3278 if (result < 0)
3279 RETPUSHUNDEF;
3280af22 3280 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3281 RETPUSHYES;
3282 RETPUSHNO;
3283}
3284
3285PP(pp_ftlink)
3286{
9cad6237 3287 I32 result = my_lstat();
2a3ff820 3288 dSP;
a0d0e21e
LW		 3289 if (result < 0)
3290 RETPUSHUNDEF;
3280af22 3291 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3292 RETPUSHYES;
3293 RETPUSHNO;
3294}
3295
3296PP(pp_ftsuid)
3297{
39644a26 3298 dSP;
a0d0e21e 3299#ifdef S_ISUID
fbb0b3b3
RGS		 3300 I32 result;
3301 STACKED_FTEST_CHECK;
3302 result = my_stat();
a0d0e21e
LW		 3303 SPAGAIN;
3304 if (result < 0)
3305 RETPUSHUNDEF;
3280af22 3306 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3307 RETPUSHYES;
3308#endif
3309 RETPUSHNO;
3310}
3311
3312PP(pp_ftsgid)
3313{
39644a26 3314 dSP;
a0d0e21e 3315#ifdef S_ISGID
fbb0b3b3
RGS		 3316 I32 result;
3317 STACKED_FTEST_CHECK;
3318 result = my_stat();
a0d0e21e
LW		 3319 SPAGAIN;
3320 if (result < 0)
3321 RETPUSHUNDEF;
3280af22 3322 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3323 RETPUSHYES;
3324#endif
3325 RETPUSHNO;
3326}
3327
3328PP(pp_ftsvtx)
3329{
39644a26 3330 dSP;
a0d0e21e 3331#ifdef S_ISVTX
fbb0b3b3
RGS		 3332 I32 result;
3333 STACKED_FTEST_CHECK;
3334 result = my_stat();
a0d0e21e
LW		 3335 SPAGAIN;
3336 if (result < 0)
3337 RETPUSHUNDEF;
3280af22 3338 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3339 RETPUSHYES;
3340#endif
3341 RETPUSHNO;
3342}
3343
3344PP(pp_fttty)
3345{
39644a26 3346 dSP;
a0d0e21e
LW		 3347 int fd;
3348 GV *gv;
7a5fd60d 3349 SV *tmpsv = Nullsv;
fb73857a 3350
fbb0b3b3
RGS		 3351 STACKED_FTEST_CHECK;
3352
533c011a 3353 if (PL_op->op_flags & OPf_REF)
146174a9 3354 gv = cGVOP_gv;
fb73857a 3355 else if (isGV(TOPs))
3356 gv = (GV*)POPs;
3357 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3358 gv = (GV*)SvRV(POPs);
a0d0e21e 3359 else
7a5fd60d 3360 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3361
a0d0e21e 3362 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3363 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d
NC		 3364 else if (tmpsv && SvOK(tmpsv)) {
3365 STRLEN n_a;
3366 char *tmps = SvPV(tmpsv, n_a);
3367 if (isDIGIT(*tmps))
3368 fd = atoi(tmps);
3369 else
3370 RETPUSHUNDEF;
3371 }
a0d0e21e
LW		 3372 else
3373 RETPUSHUNDEF;
6ad3d225 3374 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3375 RETPUSHYES;
3376 RETPUSHNO;
3377}
3378
16d20bd9
AD		 3379#if defined(atarist) /* this will work with atariST. Configure will
3380 make guesses for other systems. */
3381# define FILE_base(f) ((f)->_base)
3382# define FILE_ptr(f) ((f)->_ptr)
3383# define FILE_cnt(f) ((f)->_cnt)
3384# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3385#endif
3386
3387PP(pp_fttext)
3388{
39644a26 3389 dSP;
a0d0e21e
LW		 3390 I32 i;
3391 I32 len;
3392 I32 odd = 0;
3393 STDCHAR tbuf[512];
3394 register STDCHAR *s;
3395 register IO *io;
5f05dabc 3396 register SV *sv;
3397 GV *gv;
2d8e6c8d 3398 STRLEN n_a;
146174a9 3399 PerlIO *fp;
a0d0e21e 3400
fbb0b3b3
RGS		 3401 STACKED_FTEST_CHECK;
3402
533c011a 3403 if (PL_op->op_flags & OPf_REF)
146174a9 3404 gv = cGVOP_gv;
5f05dabc 3405 else if (isGV(TOPs))
3406 gv = (GV*)POPs;
3407 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3408 gv = (GV*)SvRV(POPs);
3409 else
3410 gv = Nullgv;
3411
3412 if (gv) {
a0d0e21e 3413 EXTEND(SP, 1);
3280af22
NIS		 3414 if (gv == PL_defgv) {
3415 if (PL_statgv)
3416 io = GvIO(PL_statgv);
a0d0e21e 3417 else {
3280af22 3418 sv = PL_statname;
a0d0e21e
LW		 3419 goto really_filename;
3420 }
3421 }
3422 else {
3280af22
NIS		 3423 PL_statgv = gv;
3424 PL_laststatval = -1;
3425 sv_setpv(PL_statname, "");
3426 io = GvIO(PL_statgv);
a0d0e21e
LW		 3427 }
3428 if (io && IoIFP(io)) {
5f05dabc 3429 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3430 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3431 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3432 if (PL_laststatval < 0)
5f05dabc 3433 RETPUSHUNDEF;
9cbac4c7 3434 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3435 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3436 RETPUSHNO;
3437 else
3438 RETPUSHYES;
9cbac4c7 3439 }
a20bf0c3 3440 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3441 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3442 if (i != EOF)
760ac839 3443 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3444 }
a20bf0c3 3445 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3446 RETPUSHYES;
a20bf0c3
JH		 3447 len = PerlIO_get_bufsiz(IoIFP(io));
3448 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3449 /* sfio can have large buffers - limit to 512 */
3450 if (len > 512)
3451 len = 512;
a0d0e21e
LW		 3452 }
3453 else {
2dd78f96 3454 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3455 gv = cGVOP_gv;
2dd78f96 3456 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3457 }
93189314 3458 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3459 RETPUSHUNDEF;
3460 }
3461 }
3462 else {
3463 sv = POPs;
5f05dabc 3464 really_filename:
3280af22 3465 PL_statgv = Nullgv;
5c9aa243 3466 PL_laststype = OP_STAT;
2d8e6c8d 3467 sv_setpv(PL_statname, SvPV(sv, n_a));
146174a9 3468 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
f9341440 3469 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
9014280d 3470 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3471 RETPUSHUNDEF;
3472 }
146174a9
CB		 3473 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3474 if (PL_laststatval < 0) {
3475 (void)PerlIO_close(fp);
5f05dabc 3476 RETPUSHUNDEF;
146174a9 3477 }
60382766 3478 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3479 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3480 (void)PerlIO_close(fp);
a0d0e21e 3481 if (len <= 0) {
533c011a 3482 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3483 RETPUSHNO; /* special case NFS directories */
3484 RETPUSHYES; /* null file is anything */
3485 }
3486 s = tbuf;
3487 }
3488
3489 /* now scan s to look for textiness */
4633a7c4 3490 /* XXX ASCII dependent code */
a0d0e21e 3491
146174a9
CB		 3492#if defined(DOSISH) || defined(USEMYBINMODE)
3493 /* ignore trailing ^Z on short files */
3494 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3495 --len;
3496#endif
3497
a0d0e21e
LW		 3498 for (i = 0; i < len; i++, s++) {
3499 if (!*s) { /* null never allowed in text */
3500 odd += len;
3501 break;
3502 }
9d116dd7 3503#ifdef EBCDIC
301e8125 3504 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3505 odd++;
3506#else
146174a9
CB		 3507 else if (*s & 128) {
3508#ifdef USE_LOCALE
2de3dbcc 3509 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3510 continue;
3511#endif
3512 /* utf8 characters don't count as odd */
fd400ab9 3513 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3514 int ulen = UTF8SKIP(s);
3515 if (ulen < len - i) {
3516 int j;
3517 for (j = 1; j < ulen; j++) {
fd400ab9 3518 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3519 goto not_utf8;
3520 }
3521 --ulen; /* loop does extra increment */
3522 s += ulen;
3523 i += ulen;
3524 continue;
3525 }
3526 }
3527 not_utf8:
3528 odd++;
146174a9 3529 }
a0d0e21e
LW		 3530 else if (*s < 32 &&
3531 *s != '\n' && *s != '\r' && *s != '\b' &&
3532 *s != '\t' && *s != '\f' && *s != 27)
3533 odd++;
9d116dd7 3534#endif
a0d0e21e
LW		 3535 }
3536
533c011a 3537 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3538 RETPUSHNO;
3539 else
3540 RETPUSHYES;
3541}
3542
3543PP(pp_ftbinary)
3544{
cea2e8a9 3545 return pp_fttext();
a0d0e21e
LW		 3546}
3547
3548/* File calls. */
3549
3550PP(pp_chdir)
3551{
39644a26 3552 dSP; dTARGET;
a0d0e21e
LW		 3553 char *tmps;
3554 SV **svp;
2d8e6c8d 3555 STRLEN n_a;
a0d0e21e 3556
35ae6b54
MS		 3557 if( MAXARG == 1 )
3558 tmps = POPpx;
3559 else
3560 tmps = 0;
3561
3562 if( !tmps || !*tmps ) {
3563 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3564 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3565#ifdef VMS
35ae6b54 3566 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3567#endif
35ae6b54
MS		 3568 )
3569 {
3570 if( MAXARG == 1 )
9014280d 3571 deprecate("chdir('') or chdir(undef) as chdir()");
35ae6b54
MS		 3572 tmps = SvPV(*svp, n_a);
3573 }
72f496dc 3574 else {
389ec635 3575 PUSHi(0);
b7ab37f8 3576 TAINT_PROPER("chdir");
389ec635
MS		 3577 RETURN;
3578 }
8ea155d1 3579 }
8ea155d1 3580
a0d0e21e 3581 TAINT_PROPER("chdir");
6ad3d225 3582 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3583#ifdef VMS
3584 /* Clear the DEFAULT element of ENV so we'll get the new value
3585 * in the future. */
6b88bc9c 3586 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3587#endif
a0d0e21e
LW		 3588 RETURN;
3589}
3590
3591PP(pp_chown)
3592{
a0d0e21e 3593#ifdef HAS_CHOWN
76ffd3b9
IZ		 3594 dSP; dMARK; dTARGET;
3595 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3596
a0d0e21e
LW		 3597 SP = MARK;
3598 PUSHi(value);
3599 RETURN;
3600#else
0322a713 3601 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3602#endif
3603}
3604
3605PP(pp_chroot)
3606{
a0d0e21e 3607#ifdef HAS_CHROOT
76ffd3b9 3608 dSP; dTARGET;
2d8e6c8d 3609 STRLEN n_a;
d05c1ba0 3610 char *tmps = POPpx;
a0d0e21e
LW		 3611 TAINT_PROPER("chroot");
3612 PUSHi( chroot(tmps) >= 0 );
3613 RETURN;
3614#else
cea2e8a9 3615 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3616#endif
3617}
3618
3619PP(pp_unlink)
3620{
39644a26 3621 dSP; dMARK; dTARGET;
a0d0e21e 3622 I32 value;
533c011a 3623 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3624 SP = MARK;
3625 PUSHi(value);
3626 RETURN;
3627}
3628
3629PP(pp_chmod)
3630{
39644a26 3631 dSP; dMARK; dTARGET;
a0d0e21e 3632 I32 value;
533c011a 3633 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3634 SP = MARK;
3635 PUSHi(value);
3636 RETURN;
3637}
3638
3639PP(pp_utime)
3640{
39644a26 3641 dSP; dMARK; dTARGET;
a0d0e21e 3642 I32 value;
533c011a 3643 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3644 SP = MARK;
3645 PUSHi(value);
3646 RETURN;
3647}
3648
3649PP(pp_rename)
3650{
39644a26 3651 dSP; dTARGET;
a0d0e21e 3652 int anum;
2d8e6c8d 3653 STRLEN n_a;
a0d0e21e 3654
2d8e6c8d
GS		 3655 char *tmps2 = POPpx;
3656 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3657 TAINT_PROPER("rename");
3658#ifdef HAS_RENAME
baed7233 3659 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3660#else
6b88bc9c 3661 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3662 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3663 anum = 1;
3664 else {
3654eb6c 3665 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3666 (void)UNLINK(tmps2);
3667 if (!(anum = link(tmps, tmps2)))
3668 anum = UNLINK(tmps);
3669 }
a0d0e21e
LW		 3670 }
3671#endif
3672 SETi( anum >= 0 );
3673 RETURN;
3674}
3675
3676PP(pp_link)
3677{
a0d0e21e 3678#ifdef HAS_LINK
370f6000 3679 dSP; dTARGET;
2d8e6c8d
GS		 3680 STRLEN n_a;
3681 char *tmps2 = POPpx;
3682 char *tmps = SvPV(TOPs, n_a);
a0d0e21e 3683 TAINT_PROPER("link");
146174a9 3684 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3685 RETURN;
a0d0e21e 3686#else
0322a713 3687 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3688#endif
a0d0e21e
LW		 3689}
3690
3691PP(pp_symlink)
3692{
a0d0e21e 3693#ifdef HAS_SYMLINK
9cad6237 3694 dSP; dTARGET;
2d8e6c8d
GS		 3695 STRLEN n_a;
3696 char *tmps2 = POPpx;
3697 char *tmps = SvPV(TOPs, n_a);
a0d0e21e
LW		 3698 TAINT_PROPER("symlink");
3699 SETi( symlink(tmps, tmps2) >= 0 );
3700 RETURN;
3701#else
cea2e8a9 3702 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3703#endif
3704}
3705
3706PP(pp_readlink)
3707{
76ffd3b9 3708 dSP;
a0d0e21e 3709#ifdef HAS_SYMLINK
76ffd3b9 3710 dTARGET;
a0d0e21e 3711 char *tmps;
46fc3d4c 3712 char buf[MAXPATHLEN];
a0d0e21e 3713 int len;
2d8e6c8d 3714 STRLEN n_a;
46fc3d4c 3715
fb73857a 3716#ifndef INCOMPLETE_TAINTS
3717 TAINT;
3718#endif
2d8e6c8d 3719 tmps = POPpx;
97dcea33 3720 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3721 EXTEND(SP, 1);
3722 if (len < 0)
3723 RETPUSHUNDEF;
3724 PUSHp(buf, len);
3725 RETURN;
3726#else
3727 EXTEND(SP, 1);
3728 RETSETUNDEF; /* just pretend it's a normal file */
3729#endif
3730}
3731
3732#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3733STATIC int
cea2e8a9 3734S_dooneliner(pTHX_ char *cmd, char *filename)
a0d0e21e 3735{
1e422769 3736 char *save_filename = filename;
3737 char *cmdline;
3738 char *s;
760ac839 3739 PerlIO *myfp;
1e422769 3740 int anum = 1;
a0d0e21e 3741
1e422769 3742 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3743 strcpy(cmdline, cmd);
3744 strcat(cmdline, " ");
3745 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3746 *s++ = '\\';
3747 *s++ = *filename++;
3748 }
3749 strcpy(s, " 2>&1");
6ad3d225 3750 myfp = PerlProc_popen(cmdline, "r");
1e422769 3751 Safefree(cmdline);
3752
a0d0e21e 3753 if (myfp) {
1e422769 3754 SV *tmpsv = sv_newmortal();
6b88bc9c 3755 /* Need to save/restore 'PL_rs' ?? */
760ac839 3756 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3757 (void)PerlProc_pclose(myfp);
a0d0e21e 3758 if (s != Nullch) {
1e422769 3759 int e;
3760 for (e = 1;
a0d0e21e 3761#ifdef HAS_SYS_ERRLIST
1e422769 3762 e <= sys_nerr
3763#endif
3764 ; e++)
3765 {
3766 /* you don't see this */
3767 char *errmsg =
3768#ifdef HAS_SYS_ERRLIST
3769 sys_errlist[e]
a0d0e21e 3770#else
1e422769 3771 strerror(e)
a0d0e21e 3772#endif
1e422769 3773 ;
3774 if (!errmsg)
3775 break;
3776 if (instr(s, errmsg)) {
3777 SETERRNO(e,0);
3778 return 0;
3779 }
a0d0e21e 3780 }
748a9306 3781 SETERRNO(0,0);
a0d0e21e
LW		 3782#ifndef EACCES
3783#define EACCES EPERM
3784#endif
1e422769 3785 if (instr(s, "cannot make"))
93189314 3786 SETERRNO(EEXIST,RMS_FEX);
1e422769 3787 else if (instr(s, "existing file"))
93189314 3788 SETERRNO(EEXIST,RMS_FEX);
1e422769 3789 else if (instr(s, "ile exists"))
93189314 3790 SETERRNO(EEXIST,RMS_FEX);
1e422769 3791 else if (instr(s, "non-exist"))
93189314 3792 SETERRNO(ENOENT,RMS_FNF);
1e422769 3793 else if (instr(s, "does not exist"))
93189314 3794 SETERRNO(ENOENT,RMS_FNF);
1e422769 3795 else if (instr(s, "not empty"))
93189314 3796 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3797 else if (instr(s, "cannot access"))
93189314 3798 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3799 else
93189314 3800 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3801 return 0;
3802 }
3803 else { /* some mkdirs return no failure indication */
6b88bc9c 3804 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3805 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3806 anum = !anum;
3807 if (anum)
748a9306 3808 SETERRNO(0,0);
a0d0e21e 3809 else
93189314 3810 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3811 }
3812 return anum;
3813 }
3814 else
3815 return 0;
3816}
3817#endif
3818
0c54f65b
RGS		 3819/* This macro removes trailing slashes from a directory name.
3820 * Different operating and file systems take differently to
3821 * trailing slashes. According to POSIX 1003.1 1996 Edition
3822 * any number of trailing slashes should be allowed.
3823 * Thusly we snip them away so that even non-conforming
3824 * systems are happy.
3825 * We should probably do this "filtering" for all
3826 * the functions that expect (potentially) directory names:
3827 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3828 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3829
3830#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3831 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3832 do { \
3833 (len)--; \
3834 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3835 (tmps) = savepvn((tmps), (len)); \
3836 (copy) = TRUE; \
3837 }
3838
a0d0e21e
LW		 3839PP(pp_mkdir)
3840{
39644a26 3841 dSP; dTARGET;
5a211162 3842 int mode;
a0d0e21e
LW		 3843#ifndef HAS_MKDIR
3844 int oldumask;
3845#endif
df25ddba 3846 STRLEN len;
5a211162 3847 char *tmps;
df25ddba 3848 bool copy = FALSE;
5a211162
GS		 3849
3850 if (MAXARG > 1)
3851 mode = POPi;
3852 else
3853 mode = 0777;
3854
0c54f65b 3855 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3856
3857 TAINT_PROPER("mkdir");
3858#ifdef HAS_MKDIR
6ad3d225 3859 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3860#else
3861 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3862 oldumask = PerlLIO_umask(0);
3863 PerlLIO_umask(oldumask);
3864 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3865#endif
df25ddba
JH		 3866 if (copy)
3867 Safefree(tmps);
a0d0e21e
LW		 3868 RETURN;
3869}
3870
3871PP(pp_rmdir)
3872{
39644a26 3873 dSP; dTARGET;
0c54f65b 3874 STRLEN len;
a0d0e21e 3875 char *tmps;
0c54f65b 3876 bool copy = FALSE;
a0d0e21e 3877
0c54f65b 3878 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3879 TAINT_PROPER("rmdir");
3880#ifdef HAS_RMDIR
0c54f65b 3881 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3882#else
0c54f65b 3883 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3884#endif
0c54f65b
RGS		 3885 if (copy)
3886 Safefree(tmps);
a0d0e21e
LW		 3887 RETURN;
3888}
3889
3890/* Directory calls. */
3891
3892PP(pp_open_dir)
3893{
a0d0e21e 3894#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3895 dSP;
2d8e6c8d
GS		 3896 STRLEN n_a;
3897 char *dirname = POPpx;
1e2c6ed7
JH		 3898 GV *gv = (GV*)POPs;
3899 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3900
3901 if (!io)
3902 goto nope;
3903
3904 if (IoDIRP(io))
6ad3d225
GS		 3905 PerlDir_close(IoDIRP(io));
3906 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3907 goto nope;
3908
3909 RETPUSHYES;
3910nope:
3911 if (!errno)
93189314 3912 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3913 RETPUSHUNDEF;
3914#else
cea2e8a9 3915 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3916#endif
3917}
3918
3919PP(pp_readdir)
3920{
34b7f128
AMS		 3921#if !defined(Direntry_t) || !defined(HAS_READDIR)
3922 DIE(aTHX_ PL_no_dir_func, "readdir");
3923#else
fd8cd3a3 3924#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3925 Direntry_t *readdir (DIR *);
a0d0e21e 3926#endif
34b7f128
AMS		 3927 dSP;
3928
3929 SV *sv;
3930 I32 gimme = GIMME;
3931 GV *gv = (GV *)POPs;
a0d0e21e 3932 register Direntry_t *dp;
a0d0e21e
LW		 3933 register IO *io = GvIOn(gv);
3934
3935 if (!io || !IoDIRP(io))
3936 goto nope;
3937
34b7f128
AMS		 3938 do {
3939 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3940 if (!dp)
3941 break;
a0d0e21e 3942#ifdef DIRNAMLEN
34b7f128 3943 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3944#else
34b7f128 3945 sv = newSVpv(dp->d_name, 0);
fb73857a 3946#endif
3947#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3948 if (!(IoFLAGS(io) & IOf_UNTAINT))
3949 SvTAINTED_on(sv);
a0d0e21e 3950#endif
34b7f128 3951 XPUSHs(sv_2mortal(sv));
a0d0e21e 3952 }
34b7f128
AMS		 3953 while (gimme == G_ARRAY);
3954
3955 if (!dp && gimme != G_ARRAY)
3956 goto nope;
3957
a0d0e21e
LW		 3958 RETURN;
3959
3960nope:
3961 if (!errno)
93189314 3962 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3963 if (GIMME == G_ARRAY)
3964 RETURN;
3965 else
3966 RETPUSHUNDEF;
a0d0e21e
LW		 3967#endif
3968}
3969
3970PP(pp_telldir)
3971{
a0d0e21e 3972#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3973 dVAR; dSP; dTARGET;
968dcd91
JH		 3974 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3975 /* XXX netbsd still seemed to.
3976 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3977 --JHI 1999-Feb-02 */
3978# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3979 long telldir (DIR *);
dfe9444c 3980# endif
a0d0e21e
LW		 3981 GV *gv = (GV*)POPs;
3982 register IO *io = GvIOn(gv);
3983
3984 if (!io || !IoDIRP(io))
3985 goto nope;
3986
6ad3d225 3987 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3988 RETURN;
3989nope:
3990 if (!errno)
93189314 3991 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3992 RETPUSHUNDEF;
3993#else
cea2e8a9 3994 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3995#endif
3996}
3997
3998PP(pp_seekdir)
3999{
a0d0e21e 4000#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 4001 dSP;
a0d0e21e
LW		 4002 long along = POPl;
4003 GV *gv = (GV*)POPs;
4004 register IO *io = GvIOn(gv);
4005
4006 if (!io || !IoDIRP(io))
4007 goto nope;
4008
6ad3d225 4009 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 4010
4011 RETPUSHYES;
4012nope:
4013 if (!errno)
93189314 4014 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4015 RETPUSHUNDEF;
4016#else
cea2e8a9 4017 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4018#endif
4019}
4020
4021PP(pp_rewinddir)
4022{
a0d0e21e 4023#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4024 dSP;
a0d0e21e
LW		 4025 GV *gv = (GV*)POPs;
4026 register IO *io = GvIOn(gv);
4027
4028 if (!io || !IoDIRP(io))
4029 goto nope;
4030
6ad3d225 4031 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4032 RETPUSHYES;
4033nope:
4034 if (!errno)
93189314 4035 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4036 RETPUSHUNDEF;
4037#else
cea2e8a9 4038 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4039#endif
4040}
4041
4042PP(pp_closedir)
4043{
a0d0e21e 4044#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4045 dSP;
a0d0e21e
LW		 4046 GV *gv = (GV*)POPs;
4047 register IO *io = GvIOn(gv);
4048
4049 if (!io || !IoDIRP(io))
4050 goto nope;
4051
4052#ifdef VOID_CLOSEDIR
6ad3d225 4053 PerlDir_close(IoDIRP(io));
a0d0e21e 4054#else
6ad3d225 4055 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4056 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4057 goto nope;
748a9306 4058 }
a0d0e21e
LW		 4059#endif
4060 IoDIRP(io) = 0;
4061
4062 RETPUSHYES;
4063nope:
4064 if (!errno)
93189314 4065 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4066 RETPUSHUNDEF;
4067#else
cea2e8a9 4068 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4069#endif
4070}
4071
4072/* Process control. */
4073
4074PP(pp_fork)
4075{
44a8e56a 4076#ifdef HAS_FORK
39644a26 4077 dSP; dTARGET;
761237fe 4078 Pid_t childpid;
a0d0e21e
LW		 4079 GV *tmpgv;
4080
4081 EXTEND(SP, 1);
45bc9206 4082 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4083 childpid = PerlProc_fork();
a0d0e21e
LW		 4084 if (childpid < 0)
4085 RETSETUNDEF;
4086 if (!childpid) {
4087 /*SUPPRESS 560*/
306196c3
MS		 4088 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4089 SvREADONLY_off(GvSV(tmpgv));
146174a9 4090 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4091 SvREADONLY_on(GvSV(tmpgv));
4092 }
4d76a344
RGS		 4093#ifdef THREADS_HAVE_PIDS
4094 PL_ppid = (IV)getppid();
4095#endif
3280af22 4096 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4097 }
4098 PUSHi(childpid);
4099 RETURN;
4100#else
146174a9 4101# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4102 dSP; dTARGET;
146174a9
CB		 4103 Pid_t childpid;
4104
4105 EXTEND(SP, 1);
4106 PERL_FLUSHALL_FOR_CHILD;
4107 childpid = PerlProc_fork();
60fa28ff
GS		 4108 if (childpid == -1)
4109 RETSETUNDEF;
146174a9
CB		 4110 PUSHi(childpid);
4111 RETURN;
4112# else
0322a713 4113 DIE(aTHX_ PL_no_func, "fork");
146174a9 4114# endif
a0d0e21e
LW		 4115#endif
4116}
4117
4118PP(pp_wait)
4119{
301e8125 4120#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4121 dSP; dTARGET;
761237fe 4122 Pid_t childpid;
a0d0e21e 4123 int argflags;
a0d0e21e 4124
4ffa73a3
JH		 4125 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4126 childpid = wait4pid(-1, &argflags, 0);
4127 else {
4128 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4129 errno == EINTR) {
4130 PERL_ASYNC_CHECK();
4131 }
0a0ada86 4132 }
68a29c53
GS		 4133# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4134 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4135 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4136# else
f86702cc 4137 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4138# endif
44a8e56a 4139 XPUSHi(childpid);
a0d0e21e
LW		 4140 RETURN;
4141#else
0322a713 4142 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4143#endif
4144}
4145
4146PP(pp_waitpid)
4147{
301e8125 4148#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4149 dSP; dTARGET;
2ec0bfb3
SG		 4150 Pid_t pid;
4151 Pid_t result;
a0d0e21e
LW		 4152 int optype;
4153 int argflags;
a0d0e21e 4154
a0d0e21e 4155 optype = POPi;
2ec0bfb3 4156 pid = TOPi;
4ffa73a3 4157 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4158 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4159 else {
2ec0bfb3 4160 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4161 errno == EINTR) {
4162 PERL_ASYNC_CHECK();
4163 }
0a0ada86 4164 }
68a29c53
GS		 4165# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4166 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4167 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4168# else
2ec0bfb3 4169 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4170# endif
2ec0bfb3 4171 SETi(result);
a0d0e21e
LW		 4172 RETURN;
4173#else
0322a713 4174 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4175#endif
4176}
4177
4178PP(pp_system)
4179{
39644a26 4180 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4181 I32 value;
2d8e6c8d 4182 STRLEN n_a;
76ffd3b9 4183 int result;
a0d0e21e 4184
bbd7eb8a
RD		 4185 if (PL_tainting) {
4186 TAINT_ENV();
4187 while (++MARK <= SP) {
4188 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4189 if (PL_tainted)
bbd7eb8a
RD		 4190 break;
4191 }
4192 MARK = ORIGMARK;
5a445156 4193 TAINT_PROPER("system");
a0d0e21e 4194 }
45bc9206 4195 PERL_FLUSHALL_FOR_CHILD;
273b0206 4196#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4197 {
eb160463
GS		 4198 Pid_t childpid;
4199 int pp[2];
27da23d5 4200 I32 did_pipes = 0;
eb160463
GS		 4201
4202 if (PerlProc_pipe(pp) >= 0)
4203 did_pipes = 1;
4204 while ((childpid = PerlProc_fork()) == -1) {
4205 if (errno != EAGAIN) {
4206 value = -1;
4207 SP = ORIGMARK;
4208 PUSHi(value);
4209 if (did_pipes) {
4210 PerlLIO_close(pp[0]);
4211 PerlLIO_close(pp[1]);
4212 }
4213 RETURN;
4214 }
4215 sleep(5);
4216 }
4217 if (childpid > 0) {
4218 Sigsave_t ihand,qhand; /* place to save signals during system() */
4219 int status;
4220
4221 if (did_pipes)
4222 PerlLIO_close(pp[1]);
64ca3a65 4223#ifndef PERL_MICRO
eb160463
GS		 4224 rsignal_save(SIGINT, SIG_IGN, &ihand);
4225 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4226#endif
eb160463
GS		 4227 do {
4228 result = wait4pid(childpid, &status, 0);
4229 } while (result == -1 && errno == EINTR);
64ca3a65 4230#ifndef PERL_MICRO
eb160463
GS		 4231 (void)rsignal_restore(SIGINT, &ihand);
4232 (void)rsignal_restore(SIGQUIT, &qhand);
4233#endif
4234 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4235 do_execfree(); /* free any memory child malloced on fork */
4236 SP = ORIGMARK;
4237 if (did_pipes) {
4238 int errkid;
4239 int n = 0, n1;
4240
4241 while (n < sizeof(int)) {
4242 n1 = PerlLIO_read(pp[0],
4243 (void*)(((char*)&errkid)+n),
4244 (sizeof(int)) - n);
4245 if (n1 <= 0)
4246 break;
4247 n += n1;
4248 }
4249 PerlLIO_close(pp[0]);
4250 if (n) { /* Error */
4251 if (n != sizeof(int))
4252 DIE(aTHX_ "panic: kid popen errno read");
4253 errno = errkid; /* Propagate errno from kid */
4254 STATUS_CURRENT = -1;
4255 }
4256 }
4257 PUSHi(STATUS_CURRENT);
4258 RETURN;
4259 }
4260 if (did_pipes) {
4261 PerlLIO_close(pp[0]);
d5a9bfb0 4262#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4263 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4264#endif
eb160463 4265 }
e0a1f643
JH		 4266 if (PL_op->op_flags & OPf_STACKED) {
4267 SV *really = *++MARK;
4268 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4269 }
4270 else if (SP - MARK != 1)
4271 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4272 else {
4273 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4274 }
4275 PerlProc__exit(-1);
d5a9bfb0 4276 }
c3293030 4277#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4278 PL_statusvalue = 0;
4279 result = 0;
911d147d 4280 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4281 SV *really = *++MARK;
27da23d5 4282# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4283 value = (I32)do_aspawn(really, MARK, SP);
4284# else
c5be433b 4285 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4286# endif
a0d0e21e 4287 }
54725af6 4288 else if (SP - MARK != 1) {
27da23d5 4289# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4290 value = (I32)do_aspawn(Nullsv, MARK, SP);
4291# else
c5be433b 4292 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4293# endif
4294 }
a0d0e21e 4295 else {
c5be433b 4296 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4297 }
922b1888
GS		 4298 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4299 result = 1;
f86702cc 4300 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4301 do_execfree();
4302 SP = ORIGMARK;
922b1888 4303 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4304#endif /* !FORK or VMS */
4305 RETURN;
4306}
4307
4308PP(pp_exec)
4309{
39644a26 4310 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4311 I32 value;
2d8e6c8d 4312 STRLEN n_a;
a0d0e21e 4313
bbd7eb8a
RD		 4314 if (PL_tainting) {
4315 TAINT_ENV();
4316 while (++MARK <= SP) {
4317 (void)SvPV_nolen(*MARK); /* stringify for taint check */
5a445156 4318 if (PL_tainted)
bbd7eb8a
RD		 4319 break;
4320 }
4321 MARK = ORIGMARK;
5a445156 4322 TAINT_PROPER("exec");
bbd7eb8a 4323 }
45bc9206 4324 PERL_FLUSHALL_FOR_CHILD;
533c011a 4325 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4326 SV *really = *++MARK;
4327 value = (I32)do_aexec(really, MARK, SP);
4328 }
4329 else if (SP - MARK != 1)
4330#ifdef VMS
4331 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4332#else
092bebab
JH		 4333# ifdef __OPEN_VM
4334 {
c5be433b 4335 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4336 value = 0;
4337 }
4338# else
a0d0e21e 4339 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4340# endif
a0d0e21e
LW		 4341#endif
4342 else {
a0d0e21e 4343#ifdef VMS
2d8e6c8d 4344 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
a0d0e21e 4345#else
092bebab 4346# ifdef __OPEN_VM
c5be433b 4347 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab
JH		 4348 value = 0;
4349# else
2d8e6c8d 4350 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
092bebab 4351# endif
a0d0e21e
LW		 4352#endif
4353 }
146174a9 4354
a0d0e21e
LW		 4355 SP = ORIGMARK;
4356 PUSHi(value);
4357 RETURN;
4358}
4359
4360PP(pp_kill)
4361{
9cad6237 4362#ifdef HAS_KILL
39644a26 4363 dSP; dMARK; dTARGET;
a0d0e21e 4364 I32 value;
533c011a 4365 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4366 SP = MARK;
4367 PUSHi(value);
4368 RETURN;
4369#else
0322a713 4370 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4371#endif
4372}
4373
4374PP(pp_getppid)
4375{
4376#ifdef HAS_GETPPID
39644a26 4377 dSP; dTARGET;
4d76a344
RGS		 4378# ifdef THREADS_HAVE_PIDS
4379 XPUSHi( PL_ppid );
4380# else
a0d0e21e 4381 XPUSHi( getppid() );
4d76a344 4382# endif
a0d0e21e
LW		 4383 RETURN;
4384#else
cea2e8a9 4385 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4386#endif
4387}
4388
4389PP(pp_getpgrp)
4390{
4391#ifdef HAS_GETPGRP
39644a26 4392 dSP; dTARGET;
d8a83dd3 4393 Pid_t pid;
9853a804 4394 Pid_t pgrp;
a0d0e21e
LW		 4395
4396 if (MAXARG < 1)
4397 pid = 0;
4398 else
4399 pid = SvIVx(POPs);
c3293030 4400#ifdef BSD_GETPGRP
9853a804 4401 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4402#else
146174a9 4403 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4404 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4405 pgrp = getpgrp();
a0d0e21e 4406#endif
9853a804 4407 XPUSHi(pgrp);
a0d0e21e
LW		 4408 RETURN;
4409#else
cea2e8a9 4410 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4411#endif
4412}
4413
4414PP(pp_setpgrp)
4415{
4416#ifdef HAS_SETPGRP
39644a26 4417 dSP; dTARGET;
d8a83dd3
JH		 4418 Pid_t pgrp;
4419 Pid_t pid;
a0d0e21e
LW		 4420 if (MAXARG < 2) {
4421 pgrp = 0;
4422 pid = 0;
4423 }
4424 else {
4425 pgrp = POPi;
4426 pid = TOPi;
4427 }
4428
4429 TAINT_PROPER("setpgrp");
c3293030
IZ		 4430#ifdef BSD_SETPGRP
4431 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4432#else
146174a9
CB		 4433 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4434 || (pid != 0 && pid != PerlProc_getpid()))
4435 {
4436 DIE(aTHX_ "setpgrp can't take arguments");
4437 }
a0d0e21e
LW		 4438 SETi( setpgrp() >= 0 );
4439#endif /* USE_BSDPGRP */
4440 RETURN;
4441#else
cea2e8a9 4442 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4443#endif
4444}
4445
4446PP(pp_getpriority)
4447{
a0d0e21e 4448#ifdef HAS_GETPRIORITY
9cad6237 4449 dSP; dTARGET;
d05c1ba0
JH		 4450 int who = POPi;
4451 int which = TOPi;
a0d0e21e
LW		 4452 SETi( getpriority(which, who) );
4453 RETURN;
4454#else
cea2e8a9 4455 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4456#endif
4457}
4458
4459PP(pp_setpriority)
4460{
a0d0e21e 4461#ifdef HAS_SETPRIORITY
9cad6237 4462 dSP; dTARGET;
d05c1ba0
JH		 4463 int niceval = POPi;
4464 int who = POPi;
4465 int which = TOPi;
a0d0e21e
LW		 4466 TAINT_PROPER("setpriority");
4467 SETi( setpriority(which, who, niceval) >= 0 );
4468 RETURN;
4469#else
cea2e8a9 4470 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4471#endif
4472}
4473
4474/* Time calls. */
4475
4476PP(pp_time)
4477{
39644a26 4478 dSP; dTARGET;
cbdc8872 4479#ifdef BIG_TIME
4480 XPUSHn( time(Null(Time_t*)) );
4481#else
a0d0e21e 4482 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4483#endif
a0d0e21e
LW		 4484 RETURN;
4485}
4486
a0d0e21e
LW		 4487PP(pp_tms)
4488{
9cad6237 4489#ifdef HAS_TIMES
39644a26 4490 dSP;
a0d0e21e 4491 EXTEND(SP, 4);
a0d0e21e 4492#ifndef VMS
3280af22 4493 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4494#else
6b88bc9c 4495 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4496 /* struct tms, though same data */
4497 /* is returned. */
a0d0e21e
LW		 4498#endif
4499
5311654c 4500 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4501 if (GIMME == G_ARRAY) {
5311654c
JH		 4502 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4503 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4504 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4505 }
4506 RETURN;
9cad6237 4507#else
2f42fcb0
JH		 4508# ifdef PERL_MICRO
4509 dSP;
4510 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4511 EXTEND(SP, 4);
4512 if (GIMME == G_ARRAY) {
4513 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4514 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4515 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4516 }
4517 RETURN;
4518# else
9cad6237 4519 DIE(aTHX_ "times not implemented");
2f42fcb0 4520# endif
55497cff 4521#endif /* HAS_TIMES */
a0d0e21e
LW		 4522}
4523
4524PP(pp_localtime)
4525{
cea2e8a9 4526 return pp_gmtime();
a0d0e21e
LW		 4527}
4528
4529PP(pp_gmtime)
4530{
39644a26 4531 dSP;
a0d0e21e 4532 Time_t when;
bfed75c6 4533 const struct tm *tmbuf;
27da23d5
JH		 4534 static const char * const dayname[] =
4535 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4536 static const char * const monname[] =
4537 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4538 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4539
4540 if (MAXARG < 1)
4541 (void)time(&when);
4542 else
cbdc8872 4543#ifdef BIG_TIME
4544 when = (Time_t)SvNVx(POPs);
4545#else
a0d0e21e 4546 when = (Time_t)SvIVx(POPs);
cbdc8872 4547#endif
a0d0e21e 4548
533c011a 4549 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4550 tmbuf = localtime(&when);
4551 else
4552 tmbuf = gmtime(&when);
4553
a0d0e21e 4554 if (GIMME != G_ARRAY) {
46fc3d4c 4555 SV *tsv;
9a5ff6d9
AB		 4556 EXTEND(SP, 1);
4557 EXTEND_MORTAL(1);
a0d0e21e
LW		 4558 if (!tmbuf)
4559 RETPUSHUNDEF;
be28567c 4560 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4561 dayname[tmbuf->tm_wday],
4562 monname[tmbuf->tm_mon],
be28567c
GS		 4563 tmbuf->tm_mday,
4564 tmbuf->tm_hour,
4565 tmbuf->tm_min,
4566 tmbuf->tm_sec,
4567 tmbuf->tm_year + 1900);
46fc3d4c 4568 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4569 }
4570 else if (tmbuf) {
9a5ff6d9
AB		 4571 EXTEND(SP, 9);
4572 EXTEND_MORTAL(9);
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4577 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4578 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4579 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4580 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4581 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4582 }
4583 RETURN;
4584}
4585
4586PP(pp_alarm)
4587{
9cad6237 4588#ifdef HAS_ALARM
39644a26 4589 dSP; dTARGET;
a0d0e21e 4590 int anum;
a0d0e21e
LW		 4591 anum = POPi;
4592 anum = alarm((unsigned int)anum);
4593 EXTEND(SP, 1);
4594 if (anum < 0)
4595 RETPUSHUNDEF;
c6419e06 4596 PUSHi(anum);
a0d0e21e
LW		 4597 RETURN;
4598#else
0322a713 4599 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4600#endif
4601}
4602
4603PP(pp_sleep)
4604{
39644a26 4605 dSP; dTARGET;
a0d0e21e
LW		 4606 I32 duration;
4607 Time_t lasttime;
4608 Time_t when;
4609
4610 (void)time(&lasttime);
4611 if (MAXARG < 1)
76e3520e 4612 PerlProc_pause();
a0d0e21e
LW		 4613 else {
4614 duration = POPi;
76e3520e 4615 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4616 }
4617 (void)time(&when);
4618 XPUSHi(when - lasttime);
4619 RETURN;
4620}
4621
4622/* Shared memory. */
4623
4624PP(pp_shmget)
4625{
cea2e8a9 4626 return pp_semget();
a0d0e21e
LW		 4627}
4628
4629PP(pp_shmctl)
4630{
cea2e8a9 4631 return pp_semctl();
a0d0e21e
LW		 4632}
4633
4634PP(pp_shmread)
4635{
cea2e8a9 4636 return pp_shmwrite();
a0d0e21e
LW		 4637}
4638
4639PP(pp_shmwrite)
4640{
4641#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4642 dSP; dMARK; dTARGET;
533c011a 4643 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4644 SP = MARK;
4645 PUSHi(value);
4646 RETURN;
4647#else
cea2e8a9 4648 return pp_semget();
a0d0e21e
LW		 4649#endif
4650}
4651
4652/* Message passing. */
4653
4654PP(pp_msgget)
4655{
cea2e8a9 4656 return pp_semget();
a0d0e21e
LW		 4657}
4658
4659PP(pp_msgctl)
4660{
cea2e8a9 4661 return pp_semctl();
a0d0e21e
LW		 4662}
4663
4664PP(pp_msgsnd)
4665{
4666#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4667 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4668 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4669 SP = MARK;
4670 PUSHi(value);
4671 RETURN;
4672#else
cea2e8a9 4673 return pp_semget();
a0d0e21e
LW		 4674#endif
4675}
4676
4677PP(pp_msgrcv)
4678{
4679#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4680 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4681 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4682 SP = MARK;
4683 PUSHi(value);
4684 RETURN;
4685#else
cea2e8a9 4686 return pp_semget();
a0d0e21e
LW		 4687#endif
4688}
4689
4690/* Semaphores. */
4691
4692PP(pp_semget)
4693{
4694#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4695 dSP; dMARK; dTARGET;
533c011a 4696 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4697 SP = MARK;
4698 if (anum == -1)
4699 RETPUSHUNDEF;
4700 PUSHi(anum);
4701 RETURN;
4702#else
cea2e8a9 4703 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4704#endif
4705}
4706
4707PP(pp_semctl)
4708{
4709#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4710 dSP; dMARK; dTARGET;
533c011a 4711 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4712 SP = MARK;
4713 if (anum == -1)
4714 RETSETUNDEF;
4715 if (anum != 0) {
4716 PUSHi(anum);
4717 }
4718 else {
8903cb82 4719 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4720 }
4721 RETURN;
4722#else
cea2e8a9 4723 return pp_semget();
a0d0e21e
LW		 4724#endif
4725}
4726
4727PP(pp_semop)
4728{
4729#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4730 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4731 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4732 SP = MARK;
4733 PUSHi(value);
4734 RETURN;
4735#else
cea2e8a9 4736 return pp_semget();
a0d0e21e
LW		 4737#endif
4738}
4739
4740/* Get system info. */
4741
4742PP(pp_ghbyname)
4743{
693762b4 4744#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4745 return pp_ghostent();
a0d0e21e 4746#else
cea2e8a9 4747 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4748#endif
4749}
4750
4751PP(pp_ghbyaddr)
4752{
693762b4 4753#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4754 return pp_ghostent();
a0d0e21e 4755#else
cea2e8a9 4756 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4757#endif
4758}
4759
4760PP(pp_ghostent)
4761{
693762b4 4762#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4763 dSP;
533c011a 4764 I32 which = PL_op->op_type;
a0d0e21e
LW		 4765 register char **elem;
4766 register SV *sv;
dc45a647 4767#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4768 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4769 struct hostent *gethostbyname(Netdb_name_t);
4770 struct hostent *gethostent(void);
a0d0e21e
LW		 4771#endif
4772 struct hostent *hent;
4773 unsigned long len;
2d8e6c8d 4774 STRLEN n_a;
a0d0e21e
LW		 4775
4776 EXTEND(SP, 10);
edd309b7 4777 if (which == OP_GHBYNAME) {
dc45a647 4778#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4779 char* name = POPpbytex;
4780 hent = PerlSock_gethostbyname(name);
dc45a647 4781#else
cea2e8a9 4782 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4783#endif
edd309b7 4784 }
a0d0e21e 4785 else if (which == OP_GHBYADDR) {
dc45a647 4786#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4787 int addrtype = POPi;
748a9306 4788 SV *addrsv = POPs;
a0d0e21e 4789 STRLEN addrlen;
595ae481 4790 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4791
4599a1de 4792 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4793#else
cea2e8a9 4794 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4795#endif
a0d0e21e
LW		 4796 }
4797 else
4798#ifdef HAS_GETHOSTENT
6ad3d225 4799 hent = PerlSock_gethostent();
a0d0e21e 4800#else
cea2e8a9 4801 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4802#endif
4803
4804#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4805 if (!hent) {
4806#ifdef USE_REENTRANT_API
4807# ifdef USE_GETHOSTENT_ERRNO
4808 h_errno = PL_reentrant_buffer->_gethostent_errno;
4809# endif
4810#endif
4811 STATUS_NATIVE_SET(h_errno);
4812 }
a0d0e21e
LW		 4813#endif
4814
4815 if (GIMME != G_ARRAY) {
4816 PUSHs(sv = sv_newmortal());
4817 if (hent) {
4818 if (which == OP_GHBYNAME) {
fd0af264 4819 if (hent->h_addr)
4820 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4821 }
4822 else
4823 sv_setpv(sv, (char*)hent->h_name);
4824 }
4825 RETURN;
4826 }
4827
4828 if (hent) {
3280af22 4829 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4830 sv_setpv(sv, (char*)hent->h_name);
3280af22 4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4832 for (elem = hent->h_aliases; elem && *elem; elem++) {
4833 sv_catpv(sv, *elem);
4834 if (elem[1])
4835 sv_catpvn(sv, " ", 1);
4836 }
3280af22 4837 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4838 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4839 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4840 len = hent->h_length;
1e422769 4841 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4842#ifdef h_addr
4843 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4844 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4845 sv_setpvn(sv, *elem, len);
4846 }
4847#else
6b88bc9c 4848 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4849 if (hent->h_addr)
4850 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4851#endif /* h_addr */
4852 }
4853 RETURN;
4854#else
cea2e8a9 4855 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4856#endif
4857}
4858
4859PP(pp_gnbyname)
4860{
693762b4 4861#ifdef HAS_GETNETBYNAME
cea2e8a9 4862 return pp_gnetent();
a0d0e21e 4863#else
cea2e8a9 4864 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4865#endif
4866}
4867
4868PP(pp_gnbyaddr)
4869{
693762b4 4870#ifdef HAS_GETNETBYADDR
cea2e8a9 4871 return pp_gnetent();
a0d0e21e 4872#else
cea2e8a9 4873 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4874#endif
4875}
4876
4877PP(pp_gnetent)
4878{
693762b4 4879#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4880 dSP;
533c011a 4881 I32 which = PL_op->op_type;
a0d0e21e
LW		 4882 register char **elem;
4883 register SV *sv;
dc45a647 4884#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4885 struct netent *getnetbyaddr(Netdb_net_t, int);
4886 struct netent *getnetbyname(Netdb_name_t);
4887 struct netent *getnetent(void);
8ac85365 4888#endif
a0d0e21e 4889 struct netent *nent;
2d8e6c8d 4890 STRLEN n_a;
a0d0e21e 4891
edd309b7 4892 if (which == OP_GNBYNAME){
dc45a647 4893#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4894 char *name = POPpbytex;
4895 nent = PerlSock_getnetbyname(name);
dc45a647 4896#else
cea2e8a9 4897 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4898#endif
edd309b7 4899 }
a0d0e21e 4900 else if (which == OP_GNBYADDR) {
dc45a647 4901#ifdef HAS_GETNETBYADDR
a0d0e21e 4902 int addrtype = POPi;
3bb7c1b4 4903 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4904 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4905#else
cea2e8a9 4906 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4907#endif
a0d0e21e
LW		 4908 }
4909 else
dc45a647 4910#ifdef HAS_GETNETENT
76e3520e 4911 nent = PerlSock_getnetent();
dc45a647 4912#else
cea2e8a9 4913 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4914#endif
a0d0e21e 4915
10bc17b6
JH		 4916#ifdef HOST_NOT_FOUND
4917 if (!nent) {
4918#ifdef USE_REENTRANT_API
4919# ifdef USE_GETNETENT_ERRNO
4920 h_errno = PL_reentrant_buffer->_getnetent_errno;
4921# endif
4922#endif
4923 STATUS_NATIVE_SET(h_errno);
4924 }
4925#endif
4926
a0d0e21e
LW		 4927 EXTEND(SP, 4);
4928 if (GIMME != G_ARRAY) {
4929 PUSHs(sv = sv_newmortal());
4930 if (nent) {
4931 if (which == OP_GNBYNAME)
1e422769 4932 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4933 else
4934 sv_setpv(sv, nent->n_name);
4935 }
4936 RETURN;
4937 }
4938
4939 if (nent) {
3280af22 4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4941 sv_setpv(sv, nent->n_name);
3280af22 4942 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4943 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4944 sv_catpv(sv, *elem);
4945 if (elem[1])
4946 sv_catpvn(sv, " ", 1);
4947 }
3280af22 4948 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4949 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4950 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4951 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4952 }
4953
4954 RETURN;
4955#else
cea2e8a9 4956 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4957#endif
4958}
4959
4960PP(pp_gpbyname)
4961{
693762b4 4962#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4963 return pp_gprotoent();
a0d0e21e 4964#else
cea2e8a9 4965 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4966#endif
4967}
4968
4969PP(pp_gpbynumber)
4970{
693762b4 4971#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4972 return pp_gprotoent();
a0d0e21e 4973#else
cea2e8a9 4974 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4975#endif
4976}
4977
4978PP(pp_gprotoent)
4979{
693762b4 4980#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4981 dSP;
533c011a 4982 I32 which = PL_op->op_type;
a0d0e21e 4983 register char **elem;
301e8125 4984 register SV *sv;
dc45a647 4985#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4986 struct protoent *getprotobyname(Netdb_name_t);
4987 struct protoent *getprotobynumber(int);
4988 struct protoent *getprotoent(void);
8ac85365 4989#endif
a0d0e21e 4990 struct protoent *pent;
2d8e6c8d 4991 STRLEN n_a;
a0d0e21e 4992
edd309b7 4993 if (which == OP_GPBYNAME) {
e5c9fcd0 4994#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4995 char* name = POPpbytex;
4996 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4997#else
cea2e8a9 4998 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4999#endif
edd309b7
JH		 5000 }
5001 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 5002#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 5003 int number = POPi;
5004 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 5005#else
edd309b7 5006 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 5007#endif
edd309b7 5008 }
a0d0e21e 5009 else
e5c9fcd0 5010#ifdef HAS_GETPROTOENT
6ad3d225 5011 pent = PerlSock_getprotoent();
e5c9fcd0 5012#else
cea2e8a9 5013 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 5014#endif
a0d0e21e
LW		 5015
5016 EXTEND(SP, 3);
5017 if (GIMME != G_ARRAY) {
5018 PUSHs(sv = sv_newmortal());
5019 if (pent) {
5020 if (which == OP_GPBYNAME)
1e422769 5021 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5022 else
5023 sv_setpv(sv, pent->p_name);
5024 }
5025 RETURN;
5026 }
5027
5028 if (pent) {
3280af22 5029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5030 sv_setpv(sv, pent->p_name);
3280af22 5031 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5032 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5033 sv_catpv(sv, *elem);
5034 if (elem[1])
5035 sv_catpvn(sv, " ", 1);
5036 }
3280af22 5037 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5038 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5039 }
5040
5041 RETURN;
5042#else
cea2e8a9 5043 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5044#endif
5045}
5046
5047PP(pp_gsbyname)
5048{
9ec75305 5049#ifdef HAS_GETSERVBYNAME
cea2e8a9 5050 return pp_gservent();
a0d0e21e 5051#else
cea2e8a9 5052 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5053#endif
5054}
5055
5056PP(pp_gsbyport)
5057{
9ec75305 5058#ifdef HAS_GETSERVBYPORT
cea2e8a9 5059 return pp_gservent();
a0d0e21e 5060#else
cea2e8a9 5061 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5062#endif
5063}
5064
5065PP(pp_gservent)
5066{
693762b4 5067#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5068 dSP;
533c011a 5069 I32 which = PL_op->op_type;
a0d0e21e
LW		 5070 register char **elem;
5071 register SV *sv;
dc45a647 5072#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5073 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5074 struct servent *getservbyport(int, Netdb_name_t);
5075 struct servent *getservent(void);
8ac85365 5076#endif
a0d0e21e 5077 struct servent *sent;
2d8e6c8d 5078 STRLEN n_a;
a0d0e21e
LW		 5079
5080 if (which == OP_GSBYNAME) {
dc45a647 5081#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5082 char *proto = POPpbytex;
5083 char *name = POPpbytex;
a0d0e21e
LW		 5084
5085 if (proto && !*proto)
5086 proto = Nullch;
5087
6ad3d225 5088 sent = PerlSock_getservbyname(name, proto);
dc45a647 5089#else
cea2e8a9 5090 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5091#endif
a0d0e21e
LW		 5092 }
5093 else if (which == OP_GSBYPORT) {
dc45a647 5094#ifdef HAS_GETSERVBYPORT
42e0c139 5095 char *proto = POPpbytex;
eb160463 5096 unsigned short port = (unsigned short)POPu;
a0d0e21e 5097
2b872cca
SR		 5098 if (proto && !*proto)
5099 proto = Nullch;
5100
36477c24 5101#ifdef HAS_HTONS
6ad3d225 5102 port = PerlSock_htons(port);
36477c24 5103#endif
6ad3d225 5104 sent = PerlSock_getservbyport(port, proto);
dc45a647 5105#else
cea2e8a9 5106 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5107#endif
a0d0e21e
LW		 5108 }
5109 else
e5c9fcd0 5110#ifdef HAS_GETSERVENT
6ad3d225 5111 sent = PerlSock_getservent();
e5c9fcd0 5112#else
cea2e8a9 5113 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5114#endif
a0d0e21e
LW		 5115
5116 EXTEND(SP, 4);
5117 if (GIMME != G_ARRAY) {
5118 PUSHs(sv = sv_newmortal());
5119 if (sent) {
5120 if (which == OP_GSBYNAME) {
5121#ifdef HAS_NTOHS
6ad3d225 5122 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5123#else
1e422769 5124 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5125#endif
5126 }
5127 else
5128 sv_setpv(sv, sent->s_name);
5129 }
5130 RETURN;
5131 }
5132
5133 if (sent) {
3280af22 5134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5135 sv_setpv(sv, sent->s_name);
3280af22 5136 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5137 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5138 sv_catpv(sv, *elem);
5139 if (elem[1])
5140 sv_catpvn(sv, " ", 1);
5141 }
3280af22 5142 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5143#ifdef HAS_NTOHS
76e3520e 5144 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5145#else
1e422769 5146 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5147#endif
3280af22 5148 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5149 sv_setpv(sv, sent->s_proto);
5150 }
5151
5152 RETURN;
5153#else
cea2e8a9 5154 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5155#endif
5156}
5157
5158PP(pp_shostent)
5159{
693762b4 5160#ifdef HAS_SETHOSTENT
9cad6237 5161 dSP;
76e3520e 5162 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5163 RETSETYES;
5164#else
cea2e8a9 5165 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5166#endif
5167}
5168
5169PP(pp_snetent)
5170{
693762b4 5171#ifdef HAS_SETNETENT
9cad6237 5172 dSP;
76e3520e 5173 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5174 RETSETYES;
5175#else
cea2e8a9 5176 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5177#endif
5178}
5179
5180PP(pp_sprotoent)
5181{
693762b4 5182#ifdef HAS_SETPROTOENT
9cad6237 5183 dSP;
76e3520e 5184 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5185 RETSETYES;
5186#else
cea2e8a9 5187 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5188#endif
5189}
5190
5191PP(pp_sservent)
5192{
693762b4 5193#ifdef HAS_SETSERVENT
9cad6237 5194 dSP;
76e3520e 5195 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5196 RETSETYES;
5197#else
cea2e8a9 5198 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5199#endif
5200}
5201
5202PP(pp_ehostent)
5203{
693762b4 5204#ifdef HAS_ENDHOSTENT
9cad6237 5205 dSP;
76e3520e 5206 PerlSock_endhostent();
924508f0 5207 EXTEND(SP,1);
a0d0e21e
LW		 5208 RETPUSHYES;
5209#else
cea2e8a9 5210 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5211#endif
5212}
5213
5214PP(pp_enetent)
5215{
693762b4 5216#ifdef HAS_ENDNETENT
9cad6237 5217 dSP;
76e3520e 5218 PerlSock_endnetent();
924508f0 5219 EXTEND(SP,1);
a0d0e21e
LW		 5220 RETPUSHYES;
5221#else
cea2e8a9 5222 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5223#endif
5224}
5225
5226PP(pp_eprotoent)
5227{
693762b4 5228#ifdef HAS_ENDPROTOENT
9cad6237 5229 dSP;
76e3520e 5230 PerlSock_endprotoent();
924508f0 5231 EXTEND(SP,1);
a0d0e21e
LW		 5232 RETPUSHYES;
5233#else
cea2e8a9 5234 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5235#endif
5236}
5237
5238PP(pp_eservent)
5239{
693762b4 5240#ifdef HAS_ENDSERVENT
9cad6237 5241 dSP;
76e3520e 5242 PerlSock_endservent();
924508f0 5243 EXTEND(SP,1);
a0d0e21e
LW		 5244 RETPUSHYES;
5245#else
cea2e8a9 5246 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5247#endif
5248}
5249
5250PP(pp_gpwnam)
5251{
5252#ifdef HAS_PASSWD
cea2e8a9 5253 return pp_gpwent();
a0d0e21e 5254#else
cea2e8a9 5255 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5256#endif
5257}
5258
5259PP(pp_gpwuid)
5260{
5261#ifdef HAS_PASSWD
cea2e8a9 5262 return pp_gpwent();
a0d0e21e 5263#else
cea2e8a9 5264 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5265#endif
5266}
5267
5268PP(pp_gpwent)
5269{
0994c4d0 5270#ifdef HAS_PASSWD
9cad6237 5271 dSP;
533c011a 5272 I32 which = PL_op->op_type;
a0d0e21e 5273 register SV *sv;
2d8e6c8d 5274 STRLEN n_a;
e3aefe8d 5275 struct passwd *pwent = NULL;
301e8125 5276 /*
bcf53261
JH		 5277 * We currently support only the SysV getsp* shadow password interface.
5278 * The interface is declared in <shadow.h> and often one needs to link
5279 * with -lsecurity or some such.
5280 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5281 * (and SCO?)
5282 *
5283 * AIX getpwnam() is clever enough to return the encrypted password
5284 * only if the caller (euid?) is root.
5285 *
e549f1c5 5286 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5287 * seem to contain more than one interface for accessing the shadow
5288 * password databases, possibly for compatibility reasons.
3813c136 5289 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5290 * are much more complicated, but also very similar to each other.
5291 *
5292 * <sys/types.h>
5293 * <sys/security.h>
5294 * <prot.h>
5295 * struct pr_passwd *getprpw*();
5296 * The password is in
3813c136
JH		 5297 * char getprpw*(...).ufld.fd_encrypt[]
5298 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5299 *
5300 * <sys/types.h>
5301 * <sys/security.h>
5302 * <prot.h>
5303 * struct es_passwd *getespw*();
5304 * The password is in
5305 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5306 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5307 *
e1920a95 5308 * <userpw.h> (AIX)
e549f1c5
JH		 5309 * struct userpw *getuserpw();
5310 * The password is in
5311 * char *(getuserpw(...)).spw_upw_passwd
5312 * (but the de facto standard getpwnam() should work okay)
5313 *
3813c136 5314 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5315 *
5316 * In HP-UX for getprpw*() the manual page claims that one should include
5317 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5318 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5319 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5320 *
5321 * Note that <sys/security.h> is already probed for, but currently
5322 * it is only included in special cases.
301e8125 5323 *
bcf53261
JH		 5324 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5325 * be preferred interface, even though also the getprpw*() interface
5326 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5327 * One also needs to call set_auth_parameters() in main() before
5328 * doing anything else, whether one is using getespw*() or getprpw*().
5329 *
5330 * Note that accessing the shadow databases can be magnitudes
5331 * slower than accessing the standard databases.
bcf53261
JH		 5332 *
5333 * --jhi
5334 */
a0d0e21e 5335
9e5f0c48
JH		 5336# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5337 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5338 * the pw_comment is left uninitialized. */
5339 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5340# endif
5341
e3aefe8d
JH		 5342 switch (which) {
5343 case OP_GPWNAM:
edd309b7
JH		 5344 {
5345 char* name = POPpbytex;
5346 pwent = getpwnam(name);
5347 }
5348 break;
e3aefe8d 5349 case OP_GPWUID:
edd309b7
JH		 5350 {
5351 Uid_t uid = POPi;
5352 pwent = getpwuid(uid);
5353 }
e3aefe8d
JH		 5354 break;
5355 case OP_GPWENT:
1883634f 5356# ifdef HAS_GETPWENT
e3aefe8d 5357 pwent = getpwent();
faea9016
IRC		 5358#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5359 if (pwent) pwent = getpwnam(pwent->pw_name);
5360#endif
1883634f 5361# else
a45d1c96 5362 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5363# endif
e3aefe8d
JH		 5364 break;
5365 }
8c0bfa08 5366
a0d0e21e
LW		 5367 EXTEND(SP, 10);
5368 if (GIMME != G_ARRAY) {
5369 PUSHs(sv = sv_newmortal());
5370 if (pwent) {
5371 if (which == OP_GPWNAM)
1883634f 5372# if Uid_t_sign <= 0
1e422769 5373 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5374# else
23dcd6c8 5375 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5376# endif
a0d0e21e
LW		 5377 else
5378 sv_setpv(sv, pwent->pw_name);
5379 }
5380 RETURN;
5381 }
5382
5383 if (pwent) {
3280af22 5384 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5385 sv_setpv(sv, pwent->pw_name);
6ee623d5 5386
3280af22 5387 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5388 SvPOK_off(sv);
5389 /* If we have getspnam(), we try to dig up the shadow
5390 * password. If we are underprivileged, the shadow
5391 * interface will set the errno to EACCES or similar,
5392 * and return a null pointer. If this happens, we will
5393 * use the dummy password (usually "*" or "x") from the
5394 * standard password database.
5395 *
5396 * In theory we could skip the shadow call completely
5397 * if euid != 0 but in practice we cannot know which
5398 * security measures are guarding the shadow databases
5399 * on a random platform.
5400 *
5401 * Resist the urge to use additional shadow interfaces.
5402 * Divert the urge to writing an extension instead.
5403 *
5404 * --jhi */
e549f1c5
JH		 5405 /* Some AIX setups falsely(?) detect some getspnam(), which
5406 * has a different API than the Solaris/IRIX one. */
5407# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5408 {
5409 struct spwd *spwent;
5410 int saverrno; /* Save and restore errno so that
5411 * underprivileged attempts seem
5412 * to have never made the unsccessful
5413 * attempt to retrieve the shadow password. */
5414
5415 saverrno = errno;
5416 spwent = getspnam(pwent->pw_name);
5417 errno = saverrno;
5418 if (spwent && spwent->sp_pwdp)
5419 sv_setpv(sv, spwent->sp_pwdp);
5420 }
f1066039 5421# endif
e020c87d 5422# ifdef PWPASSWD
3813c136
JH		 5423 if (!SvPOK(sv)) /* Use the standard password, then. */
5424 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5425# endif
3813c136 5426
1883634f 5427# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5428 /* passwd is tainted because user himself can diddle with it.
5429 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5430 SvTAINTED_on(sv);
1883634f 5431# endif
6ee623d5 5432
3280af22 5433 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5434# if Uid_t_sign <= 0
1e422769 5435 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5436# else
23dcd6c8 5437 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5438# endif
6ee623d5 5439
3280af22 5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5441# if Uid_t_sign <= 0
1e422769 5442 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5443# else
23dcd6c8 5444 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5445# endif
3813c136
JH		 5446 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5447 * because of the poor interface of the Perl getpw*(),
5448 * not because there's some standard/convention saying so.
5449 * A better interface would have been to return a hash,
5450 * but we are accursed by our history, alas. --jhi. */
3280af22 5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5452# ifdef PWCHANGE
1e422769 5453 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5454# else
1883634f
JH		 5455# ifdef PWQUOTA
5456 sv_setiv(sv, (IV)pwent->pw_quota);
5457# else
a1757be1 5458# ifdef PWAGE
a0d0e21e 5459 sv_setpv(sv, pwent->pw_age);
a1757be1 5460# endif
6ee623d5
GS		 5461# endif
5462# endif
6ee623d5 5463
3813c136
JH		 5464 /* pw_class and pw_comment are mutually exclusive--.
5465 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5467# ifdef PWCLASS
a0d0e21e 5468 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5469# else
5470# ifdef PWCOMMENT
a0d0e21e 5471 sv_setpv(sv, pwent->pw_comment);
1883634f 5472# endif
6ee623d5 5473# endif
6ee623d5 5474
3280af22 5475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5476# ifdef PWGECOS
a0d0e21e 5477 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5478# endif
5479# ifndef INCOMPLETE_TAINTS
d2719217 5480 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5481 SvTAINTED_on(sv);
1883634f 5482# endif
6ee623d5 5483
3280af22 5484 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5485 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5486
3280af22 5487 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5488 sv_setpv(sv, pwent->pw_shell);
1883634f 5489# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5490 /* pw_shell is tainted because user himself can diddle with it. */
5491 SvTAINTED_on(sv);
1883634f 5492# endif
6ee623d5 5493
1883634f 5494# ifdef PWEXPIRE
6b88bc9c 5495 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5496 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5497# endif
a0d0e21e
LW		 5498 }
5499 RETURN;
5500#else
cea2e8a9 5501 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5502#endif
5503}
5504
5505PP(pp_spwent)
5506{
d493b042 5507#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5508 dSP;
a0d0e21e
LW		 5509 setpwent();
5510 RETPUSHYES;
5511#else
cea2e8a9 5512 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5513#endif
5514}
5515
5516PP(pp_epwent)
5517{
28e8609d 5518#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5519 dSP;
a0d0e21e
LW		 5520 endpwent();
5521 RETPUSHYES;
5522#else
cea2e8a9 5523 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5524#endif
5525}
5526
5527PP(pp_ggrnam)
5528{
5529#ifdef HAS_GROUP
cea2e8a9 5530 return pp_ggrent();
a0d0e21e 5531#else
cea2e8a9 5532 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5533#endif
5534}
5535
5536PP(pp_ggrgid)
5537{
5538#ifdef HAS_GROUP
cea2e8a9 5539 return pp_ggrent();
a0d0e21e 5540#else
cea2e8a9 5541 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5542#endif
5543}
5544
5545PP(pp_ggrent)
5546{
0994c4d0 5547#ifdef HAS_GROUP
9cad6237 5548 dSP;
533c011a 5549 I32 which = PL_op->op_type;
a0d0e21e
LW		 5550 register char **elem;
5551 register SV *sv;
5552 struct group *grent;
2d8e6c8d 5553 STRLEN n_a;
a0d0e21e 5554
edd309b7
JH		 5555 if (which == OP_GGRNAM) {
5556 char* name = POPpbytex;
5557 grent = (struct group *)getgrnam(name);
5558 }
5559 else if (which == OP_GGRGID) {
5560 Gid_t gid = POPi;
5561 grent = (struct group *)getgrgid(gid);
5562 }
a0d0e21e 5563 else
0994c4d0 5564#ifdef HAS_GETGRENT
a0d0e21e 5565 grent = (struct group *)getgrent();
0994c4d0
JH		 5566#else
5567 DIE(aTHX_ PL_no_func, "getgrent");
5568#endif
a0d0e21e
LW		 5569
5570 EXTEND(SP, 4);
5571 if (GIMME != G_ARRAY) {
5572 PUSHs(sv = sv_newmortal());
5573 if (grent) {
5574 if (which == OP_GGRNAM)
1e422769 5575 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5576 else
5577 sv_setpv(sv, grent->gr_name);
5578 }
5579 RETURN;
5580 }
5581
5582 if (grent) {
3280af22 5583 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5584 sv_setpv(sv, grent->gr_name);
28e8609d 5585
3280af22 5586 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5587#ifdef GRPASSWD
a0d0e21e 5588 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5589#endif
5590
3280af22 5591 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5592 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5593
5b56e7c5 5594#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5595 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5596 /* In UNICOS/mk (_CRAYMPP) the multithreading
5597 * versions (getgrnam_r, getgrgid_r)
5598 * seem to return an illegal pointer
5599 * as the group members list, gr_mem.
5600 * getgrent() doesn't even have a _r version
5601 * but the gr_mem is poisonous anyway.
5602 * So yes, you cannot get the list of group
5603 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5604 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5605 sv_catpv(sv, *elem);
5606 if (elem[1])
5607 sv_catpvn(sv, " ", 1);
5608 }
3d7e8424 5609#endif
a0d0e21e
LW		 5610 }
5611
5612 RETURN;
5613#else
cea2e8a9 5614 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5615#endif
5616}
5617
5618PP(pp_sgrent)
5619{
28e8609d 5620#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5621 dSP;
a0d0e21e
LW		 5622 setgrent();
5623 RETPUSHYES;
5624#else
cea2e8a9 5625 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5626#endif
5627}
5628
5629PP(pp_egrent)
5630{
28e8609d 5631#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5632 dSP;
a0d0e21e
LW		 5633 endgrent();
5634 RETPUSHYES;
5635#else
cea2e8a9 5636 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5637#endif
5638}
5639
5640PP(pp_getlogin)
5641{
a0d0e21e 5642#ifdef HAS_GETLOGIN
9cad6237 5643 dSP; dTARGET;
a0d0e21e
LW		 5644 char *tmps;
5645 EXTEND(SP, 1);
76e3520e 5646 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5647 RETPUSHUNDEF;
5648 PUSHp(tmps, strlen(tmps));
5649 RETURN;
5650#else
cea2e8a9 5651 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5652#endif
5653}
5654
5655/* Miscellaneous. */
5656
5657PP(pp_syscall)
5658{
d2719217 5659#ifdef HAS_SYSCALL
39644a26 5660 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5661 register I32 items = SP - MARK;
5662 unsigned long a[20];
5663 register I32 i = 0;
5664 I32 retval = -1;
2d8e6c8d 5665 STRLEN n_a;
a0d0e21e 5666
3280af22 5667 if (PL_tainting) {
a0d0e21e 5668 while (++MARK <= SP) {
bbce6d69 5669 if (SvTAINTED(*MARK)) {
5670 TAINT;
5671 break;
5672 }
a0d0e21e
LW		 5673 }
5674 MARK = ORIGMARK;
5675 TAINT_PROPER("syscall");
5676 }
5677
5678 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5679 * or where sizeof(long) != sizeof(char*). But such machines will
5680 * not likely have syscall implemented either, so who cares?
5681 */
5682 while (++MARK <= SP) {
5683 if (SvNIOK(*MARK) || !i)
5684 a[i++] = SvIV(*MARK);
3280af22 5685 else if (*MARK == &PL_sv_undef)
748a9306 5686 a[i++] = 0;
301e8125 5687 else
2d8e6c8d 5688 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
a0d0e21e
LW		 5689 if (i > 15)
5690 break;
5691 }
5692 switch (items) {
5693 default:
cea2e8a9 5694 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5695 case 0:
cea2e8a9 5696 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5697 case 1:
5698 retval = syscall(a[0]);
5699 break;
5700 case 2:
5701 retval = syscall(a[0],a[1]);
5702 break;
5703 case 3:
5704 retval = syscall(a[0],a[1],a[2]);
5705 break;
5706 case 4:
5707 retval = syscall(a[0],a[1],a[2],a[3]);
5708 break;
5709 case 5:
5710 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5711 break;
5712 case 6:
5713 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5714 break;
5715 case 7:
5716 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5717 break;
5718 case 8:
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5720 break;
5721#ifdef atarist
5722 case 9:
5723 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5724 break;
5725 case 10:
5726 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5727 break;
5728 case 11:
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5730 a[10]);
5731 break;
5732 case 12:
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5734 a[10],a[11]);
5735 break;
5736 case 13:
5737 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5738 a[10],a[11],a[12]);
5739 break;
5740 case 14:
5741 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5742 a[10],a[11],a[12],a[13]);
5743 break;
5744#endif /* atarist */
5745 }
5746 SP = ORIGMARK;
5747 PUSHi(retval);
5748 RETURN;
5749#else
cea2e8a9 5750 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5751#endif
5752}
5753
ff68c719 5754#ifdef FCNTL_EMULATE_FLOCK
301e8125 5755
ff68c719 5756/* XXX Emulate flock() with fcntl().
5757 What's really needed is a good file locking module.
5758*/
5759
cea2e8a9
GS		 5760static int
5761fcntl_emulate_flock(int fd, int operation)
ff68c719 5762{
5763 struct flock flock;
301e8125 5764
ff68c719 5765 switch (operation & ~LOCK_NB) {
5766 case LOCK_SH:
5767 flock.l_type = F_RDLCK;
5768 break;
5769 case LOCK_EX:
5770 flock.l_type = F_WRLCK;
5771 break;
5772 case LOCK_UN:
5773 flock.l_type = F_UNLCK;
5774 break;
5775 default:
5776 errno = EINVAL;
5777 return -1;
5778 }
5779 flock.l_whence = SEEK_SET;
d9b3e12d 5780 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5781
ff68c719 5782 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5783}
5784
5785#endif /* FCNTL_EMULATE_FLOCK */
5786
5787#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5788
5789/* XXX Emulate flock() with lockf(). This is just to increase
5790 portability of scripts. The calls are not completely
5791 interchangeable. What's really needed is a good file
5792 locking module.
5793*/
5794
76c32331 5795/* The lockf() constants might have been defined in <unistd.h>.
5796 Unfortunately, <unistd.h> causes troubles on some mixed
5797 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5798
5799 Further, the lockf() constants aren't POSIX, so they might not be
5800 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5801 just stick in the SVID values and be done with it. Sigh.
5802*/
5803
5804# ifndef F_ULOCK
5805# define F_ULOCK 0 /* Unlock a previously locked region */
5806# endif
5807# ifndef F_LOCK
5808# define F_LOCK 1 /* Lock a region for exclusive use */
5809# endif
5810# ifndef F_TLOCK
5811# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5812# endif
5813# ifndef F_TEST
5814# define F_TEST 3 /* Test a region for other processes locks */
5815# endif
5816
cea2e8a9
GS		 5817static int
5818lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5819{
5820 int i;
84902520
TB		 5821 int save_errno;
5822 Off_t pos;
5823
5824 /* flock locks entire file so for lockf we need to do the same */
5825 save_errno = errno;
6ad3d225 5826 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5827 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5828 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5829 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5830 errno = save_errno;
5831
16d20bd9
AD		 5832 switch (operation) {
5833
5834 /* LOCK_SH - get a shared lock */
5835 case LOCK_SH:
5836 /* LOCK_EX - get an exclusive lock */
5837 case LOCK_EX:
5838 i = lockf (fd, F_LOCK, 0);
5839 break;
5840
5841 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5842 case LOCK_SH|LOCK_NB:
5843 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5844 case LOCK_EX|LOCK_NB:
5845 i = lockf (fd, F_TLOCK, 0);
5846 if (i == -1)
5847 if ((errno == EAGAIN) || (errno == EACCES))
5848 errno = EWOULDBLOCK;
5849 break;
5850
ff68c719 5851 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5852 case LOCK_UN:
ff68c719 5853 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5854 i = lockf (fd, F_ULOCK, 0);
5855 break;
5856
5857 /* Default - can't decipher operation */
5858 default:
5859 i = -1;
5860 errno = EINVAL;
5861 break;
5862 }
84902520
TB		 5863
5864 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5865 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5866
16d20bd9
AD		 5867 return (i);
5868}
ff68c719 5869
5870#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5871
5872/*
5873 * Local variables:
5874 * c-indentation-style: bsd
5875 * c-basic-offset: 4
5876 * indent-tabs-mode: t
5877 * End:
5878 *
edf815fd 5879 * vim: shiftwidth=4:
241d1a3b 5880*/
Unnamed repository; edit this file 'description' to name the repository.