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
Collect a little more information about the body we're getting rid of
[perl5.git] / pp_sys.c
CommitLineData
a0d0e21e
LW		 1/* pp_sys.c
2 *
4bb101f2 3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
a0d0e21e
LW		 5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11/*
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
16 */
17
166f8a29
DM		 18/* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
23 *
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
25 */
26
a0d0e21e 27#include "EXTERN.h"
864dbfa3 28#define PERL_IN_PP_SYS_C
a0d0e21e
LW		 29#include "perl.h"
30
f1066039
JH		 31#ifdef I_SHADOW
32/* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
3813c136
JH		 34 * The API is from SysV.
35 *
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
38 *
39 * --jhi */
40# ifdef __hpux__
c529f79d 41/* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
301e8125 42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
3813c136
JH		 43# undef MAXINT
44# endif
45# include <shadow.h>
8c0bfa08
PB		 46#endif
47
76c32331 48#ifdef I_SYS_WAIT
49# include <sys/wait.h>
50#endif
51
52#ifdef I_SYS_RESOURCE
53# include <sys/resource.h>
16d20bd9 54#endif
a0d0e21e 55
2986a63f
JH		 56#ifdef NETWARE
57NETDB_DEFINE_CONTEXT
58#endif
59
a0d0e21e 60#ifdef HAS_SELECT
1e743fda
JH		 61# ifdef I_SYS_SELECT
62# include <sys/select.h>
63# endif
a0d0e21e 64#endif
a0d0e21e 65
dc45a647
MB		 66/* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
5ff3f7a4
GS		 68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
dc45a647 72*/
cb50131a 73#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
a0d0e21e
LW		 74extern int h_errno;
75#endif
76
77#ifdef HAS_PASSWD
78# ifdef I_PWD
79# include <pwd.h>
80# else
fd8cd3a3 81# if !defined(VMS)
20ce7b12
GS		 82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
fd8cd3a3 84# endif
a0d0e21e 85# endif
28e8609d 86# ifdef HAS_GETPWENT
10bc17b6 87#ifndef getpwent
20ce7b12 88 struct passwd *getpwent (void);
c2a8f790
JH		 89#elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
10bc17b6 91#endif
28e8609d 92# endif
a0d0e21e
LW		 93#endif
94
95#ifdef HAS_GROUP
96# ifdef I_GRP
97# include <grp.h>
98# else
20ce7b12
GS		 99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
a0d0e21e 101# endif
28e8609d 102# ifdef HAS_GETGRENT
10bc17b6 103#ifndef getgrent
20ce7b12 104 struct group *getgrent (void);
10bc17b6 105#endif
28e8609d 106# endif
a0d0e21e
LW		 107#endif
108
109#ifdef I_UTIME
3730b96e 110# if defined(_MSC_VER) || defined(__MINGW32__)
3fe9a6f1 111# include <sys/utime.h>
112# else
113# include <utime.h>
114# endif
a0d0e21e 115#endif
a0d0e21e 116
cbdc8872 117#ifdef HAS_CHSIZE
cd52b7b2 118# ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
119# undef my_chsize
120# endif
72cc7e2a 121# define my_chsize PerlLIO_chsize
27da23d5
JH		 122#else
123# ifdef HAS_TRUNCATE
124# define my_chsize PerlLIO_chsize
125# else
126I32 my_chsize(int fd, Off_t length);
127# endif
cbdc8872 128#endif
129
ff68c719 130#ifdef HAS_FLOCK
131# define FLOCK flock
132#else /* no flock() */
133
36477c24 134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138# if defined(HAS_FCNTL) && !defined(I_FCNTL)
139# include <fcntl.h>
140# endif
141
9d9004a9 142# if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
ff68c719 143# define FLOCK fcntl_emulate_flock
144# define FCNTL_EMULATE_FLOCK
145# else /* no flock() or fcntl(F_SETLK,...) */
146# ifdef HAS_LOCKF
147# define FLOCK lockf_emulate_flock
148# define LOCKF_EMULATE_FLOCK
149# endif /* lockf */
150# endif /* no flock() or fcntl(F_SETLK,...) */
151
152# ifdef FLOCK
20ce7b12 153 static int FLOCK (int, int);
ff68c719 154
155 /*
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
158 */
159# ifndef LOCK_SH
160# define LOCK_SH 1
161# endif
162# ifndef LOCK_EX
163# define LOCK_EX 2
164# endif
165# ifndef LOCK_NB
166# define LOCK_NB 4
167# endif
168# ifndef LOCK_UN
169# define LOCK_UN 8
170# endif
171# endif /* emulating flock() */
172
173#endif /* no flock() */
55497cff 174
85ab1d1d 175#define ZBTLEN 10
27da23d5 176static const char zero_but_true[ZBTLEN + 1] = "0 but true";
85ab1d1d 177
5ff3f7a4
GS		 178#if defined(I_SYS_ACCESS) && !defined(R_OK)
179# include <sys/access.h>
180#endif
181
c529f79d
CB		 182#if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183# define FD_CLOEXEC 1 /* NeXT needs this */
184#endif
185
a4af207c
JH		 186#include "reentr.h"
187
9cffb111
OS		 188#ifdef __Lynx__
189/* Missing protos on LynxOS */
190void sethostent(int);
191void endhostent(void);
192void setnetent(int);
193void endnetent(void);
194void setprotoent(int);
195void endprotoent(void);
196void setservent(int);
197void endservent(void);
198#endif
199
5ff3f7a4
GS		 200#undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201#undef PERL_EFF_ACCESS_W_OK
202#undef PERL_EFF_ACCESS_X_OK
203
204/* F_OK unused: if stat() cannot find it... */
205
206#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
c955f117 207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
5ff3f7a4
GS		 208# define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209# define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210# define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
211#endif
212
213#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
3813c136 214# ifdef I_SYS_SECURITY
5ff3f7a4
GS		 215# include <sys/security.h>
216# endif
c955f117
JH		 217# ifdef ACC_SELF
218 /* HP SecureWare */
219# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
222# else
223 /* SCO */
224# define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225# define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226# define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
227# endif
5ff3f7a4
GS		 228#endif
229
230#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
c955f117 231 /* AIX */
5ff3f7a4
GS		 232# define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233# define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234# define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
235#endif
236
327c3667
GS		 237#if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
5ff3f7a4 240/* The Hard Way. */
327c3667 241STATIC int
7f4774ae 242S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 243{
5ff3f7a4
GS		 244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
248 int res;
249
146174a9 250 LOCK_CRED_MUTEX;
5ff3f7a4 251#if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
cea2e8a9 252 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 253#else
254#ifdef HAS_SETREUID
255 if (setreuid(euid, ruid))
256#else
257#ifdef HAS_SETRESUID
258 if (setresuid(euid, ruid, (Uid_t)-1))
259#endif
260#endif
cea2e8a9 261 Perl_croak(aTHX_ "entering effective uid failed");
5ff3f7a4
GS		 262#endif
263
264#if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
cea2e8a9 265 Perl_croak(aTHX_ "switching effective gid is not implemented");
5ff3f7a4
GS		 266#else
267#ifdef HAS_SETREGID
268 if (setregid(egid, rgid))
269#else
270#ifdef HAS_SETRESGID
271 if (setresgid(egid, rgid, (Gid_t)-1))
272#endif
273#endif
cea2e8a9 274 Perl_croak(aTHX_ "entering effective gid failed");
5ff3f7a4
GS		 275#endif
276
277 res = access(path, mode);
278
279#ifdef HAS_SETREUID
280 if (setreuid(ruid, euid))
281#else
282#ifdef HAS_SETRESUID
283 if (setresuid(ruid, euid, (Uid_t)-1))
284#endif
285#endif
cea2e8a9 286 Perl_croak(aTHX_ "leaving effective uid failed");
5ff3f7a4
GS		 287
288#ifdef HAS_SETREGID
289 if (setregid(rgid, egid))
290#else
291#ifdef HAS_SETRESGID
292 if (setresgid(rgid, egid, (Gid_t)-1))
293#endif
294#endif
cea2e8a9 295 Perl_croak(aTHX_ "leaving effective gid failed");
146174a9 296 UNLOCK_CRED_MUTEX;
5ff3f7a4
GS		 297
298 return res;
299}
300# define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301# define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302# define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
303#endif
304
305#if !defined(PERL_EFF_ACCESS_R_OK)
76ffd3b9
IZ		 306/* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
308 */
327c3667 309STATIC int
7f4774ae 310S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
ba106d47 311{
5d7488b2
AL		 312 (void)path;
313 (void)mode;
cea2e8a9 314 Perl_croak(aTHX_ "switching effective uid is not implemented");
5ff3f7a4
GS		 315 /*NOTREACHED*/
316 return -1;
317}
318#endif
319
a0d0e21e
LW		 320PP(pp_backtick)
321{
39644a26 322 dSP; dTARGET;
760ac839 323 PerlIO *fp;
5c144d81 324 const char *tmps = POPpconstx;
f54cb97a 325 const I32 gimme = GIMME_V;
e1ec3a88 326 const char *mode = "r";
54310121 327
a0d0e21e 328 TAINT_PROPER("``");
16fe6d59
GS		 329 if (PL_op->op_private & OPpOPEN_IN_RAW)
330 mode = "rb";
331 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
332 mode = "rt";
5c144d81 333 fp = PerlProc_popen((char*)tmps, (char *)mode);
a0d0e21e 334 if (fp) {
e1ec3a88 335 const char *type = NULL;
ac27b0f5 336 if (PL_curcop->cop_io) {
e62f0680 337 type = SvPV_nolen_const(PL_curcop->cop_io);
ac27b0f5 338 }
ac27b0f5
NIS		 339 if (type && *type)
340 PerlIO_apply_layers(aTHX_ fp,mode,type);
341
54310121 342 if (gimme == G_VOID) {
96827780
MB		 343 char tmpbuf[256];
344 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
54310121 345 ;
346 }
347 else if (gimme == G_SCALAR) {
75af1a9c
DM		 348 ENTER;
349 SAVESPTR(PL_rs);
fa326138 350 PL_rs = &PL_sv_undef;
c69006e4 351 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
a0d0e21e 352 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
a0d0e21e 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 }
e62f0680 446 tmps = SvPV_const(tmpsv, len);
7b102d90 447 if ((!tmps || !len) && PL_errgv) {
4e6ea2c3 448 SV *error = ERRSV;
862a34c6 449 SvUPGRADE(error, SVt_PV);
4e6ea2c3
GS		 450 if (SvPOK(error) && SvCUR(error))
451 sv_catpv(error, "\t...caught");
06bf62c7 452 tmpsv = error;
e62f0680 453 tmps = SvPV_const(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 475 tmpsv = TARG;
5c144d81 476 tmps = SvPV_const(tmpsv, len);
06bf62c7 477 multiarg = 1;
a0d0e21e
LW		 478 SP = MARK + 1;
479 }
480 else {
4e6ea2c3 481 tmpsv = TOPs;
5c144d81 482 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
a0d0e21e 483 }
06bf62c7 484 if (!tmps || !len) {
4e6ea2c3 485 SV *error = ERRSV;
862a34c6 486 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 512 tmpsv = error;
e62f0680 513 tmps = SvPV_const(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;
5c144d81 532 const char *tmps;
a0d0e21e 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
5c144d81
NC		 563 tmps = SvPV_const(sv, len);
564 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
a567e93b
NIS		 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
a0288114 714 /* Only DIE if trying to restrict permissions on "user" (self).
eec2d3df
GS		 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),
e62f0680 766 (discp) ? SvPV_nolen_const(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),
e62f0680 770 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
38af81ff
JH		 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;
1df70142 791 const 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";
bfcb3514 800 HvEITER_set((HV *)varsv, 0);
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;
1df70142 878 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 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;
1df70142 917 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
14befaf4 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];
1010#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1011 I32 masksize;
1012 I32 offset;
1013 I32 k;
1014
1015# if BYTEORDER & 0xf0000
1016# define ORDERBYTE (0x88888888 - BYTEORDER)
1017# else
1018# define ORDERBYTE (0x4444 - BYTEORDER)
1019# endif
1020
1021#endif
1022
1023 SP -= 4;
1024 for (i = 1; i <= 3; i++) {
729c079f
NC		 1025 SV *sv = SP[i];
1026 if (SvOK(sv) && SvREADONLY(sv)) {
1027 if (SvIsCOW(sv))
1028 sv_force_normal_flags(sv, 0);
1029 if (SvREADONLY(sv))
1030 DIE(aTHX_ PL_no_modify);
1031 }
1032 if (!SvPOK(sv))
a0d0e21e 1033 continue;
729c079f 1034 j = SvCUR(sv);
a0d0e21e
LW		 1035 if (maxlen < j)
1036 maxlen = j;
1037 }
1038
5ff3f7a4 1039/* little endians can use vecs directly */
e366b469 1040#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
5ff3f7a4 1041# ifdef NFDBITS
a0d0e21e 1042
5ff3f7a4
GS		 1043# ifndef NBBY
1044# define NBBY 8
1045# endif
a0d0e21e
LW		 1046
1047 masksize = NFDBITS / NBBY;
5ff3f7a4 1048# else
a0d0e21e 1049 masksize = sizeof(long); /* documented int, everyone seems to use long */
5ff3f7a4 1050# endif
a0d0e21e
LW		 1051 Zero(&fd_sets[0], 4, char*);
1052#endif
1053
ad517f75
MHM		 1054# if SELECT_MIN_BITS == 1
1055 growsize = sizeof(fd_set);
1056# else
1057# if defined(__GLIBC__) && defined(__FD_SETSIZE)
1058# undef SELECT_MIN_BITS
1059# define SELECT_MIN_BITS __FD_SETSIZE
1060# endif
e366b469
PG		 1061 /* If SELECT_MIN_BITS is greater than one we most probably will want
1062 * to align the sizes with SELECT_MIN_BITS/8 because for example
1063 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1064 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1065 * on (sets/tests/clears bits) is 32 bits. */
1066 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
e366b469
PG		 1067# endif
1068
a0d0e21e
LW		 1069 sv = SP[4];
1070 if (SvOK(sv)) {
1071 value = SvNV(sv);
1072 if (value < 0.0)
1073 value = 0.0;
1074 timebuf.tv_sec = (long)value;
65202027 1075 value -= (NV)timebuf.tv_sec;
a0d0e21e
LW		 1076 timebuf.tv_usec = (long)(value * 1000000.0);
1077 }
1078 else
1079 tbuf = Null(struct timeval*);
1080
1081 for (i = 1; i <= 3; i++) {
1082 sv = SP[i];
1083 if (!SvOK(sv)) {
1084 fd_sets[i] = 0;
1085 continue;
1086 }
1087 else if (!SvPOK(sv))
8b6b16e7 1088 SvPV_force_nolen(sv); /* force string conversion */
a0d0e21e
LW		 1089 j = SvLEN(sv);
1090 if (j < growsize) {
1091 Sv_Grow(sv, growsize);
a0d0e21e 1092 }
c07a80fd 1093 j = SvCUR(sv);
1094 s = SvPVX(sv) + j;
1095 while (++j <= growsize) {
1096 *s++ = '\0';
1097 }
1098
a0d0e21e
LW		 1099#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1100 s = SvPVX(sv);
1101 New(403, fd_sets[i], growsize, char);
1102 for (offset = 0; offset < growsize; offset += masksize) {
1103 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1104 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1105 }
1106#else
1107 fd_sets[i] = SvPVX(sv);
1108#endif
1109 }
1110
dc4c69d9
JH		 1111#ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1112 /* Can't make just the (void*) conditional because that would be
1113 * cpp #if within cpp macro, and not all compilers like that. */
1114 nfound = PerlSock_select(
1115 maxlen * 8,
1116 (Select_fd_set_t) fd_sets[1],
1117 (Select_fd_set_t) fd_sets[2],
1118 (Select_fd_set_t) fd_sets[3],
1119 (void*) tbuf); /* Workaround for compiler bug. */
1120#else
6ad3d225 1121 nfound = PerlSock_select(
a0d0e21e
LW		 1122 maxlen * 8,
1123 (Select_fd_set_t) fd_sets[1],
1124 (Select_fd_set_t) fd_sets[2],
1125 (Select_fd_set_t) fd_sets[3],
1126 tbuf);
dc4c69d9 1127#endif
a0d0e21e
LW		 1128 for (i = 1; i <= 3; i++) {
1129 if (fd_sets[i]) {
1130 sv = SP[i];
1131#if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1132 s = SvPVX(sv);
1133 for (offset = 0; offset < growsize; offset += masksize) {
1134 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1135 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1136 }
1137 Safefree(fd_sets[i]);
1138#endif
1139 SvSETMAGIC(sv);
1140 }
1141 }
1142
5c477709
RGS		 1143 if (nfound == -1)
1144 PUSHs(&PL_sv_undef);
1145 else
1146 PUSHi(nfound);
a0d0e21e 1147 if (GIMME == G_ARRAY && tbuf) {
65202027
DS		 1148 value = (NV)(timebuf.tv_sec) +
1149 (NV)(timebuf.tv_usec) / 1000000.0;
3280af22 1150 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 1151 sv_setnv(sv, value);
1152 }
1153 RETURN;
1154#else
cea2e8a9 1155 DIE(aTHX_ "select not implemented");
a0d0e21e
LW		 1156#endif
1157}
1158
4633a7c4 1159void
864dbfa3 1160Perl_setdefout(pTHX_ GV *gv)
4633a7c4
LW		 1161{
1162 if (gv)
1163 (void)SvREFCNT_inc(gv);
3280af22
NIS		 1164 if (PL_defoutgv)
1165 SvREFCNT_dec(PL_defoutgv);
1166 PL_defoutgv = gv;
4633a7c4
LW		 1167}
1168
a0d0e21e
LW		 1169PP(pp_select)
1170{
39644a26 1171 dSP; dTARGET;
1df70142 1172 GV *egv;
4633a7c4
LW		 1173 HV *hv;
1174
1df70142 1175 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
4633a7c4 1176
3280af22 1177 egv = GvEGV(PL_defoutgv);
4633a7c4 1178 if (!egv)
3280af22 1179 egv = PL_defoutgv;
4633a7c4
LW		 1180 hv = GvSTASH(egv);
1181 if (! hv)
3280af22 1182 XPUSHs(&PL_sv_undef);
4633a7c4 1183 else {
cbdc8872 1184 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
f86702cc 1185 if (gvp && *gvp == egv) {
f7aaccc2 1186 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
f86702cc 1187 XPUSHTARG;
1188 }
1189 else {
1190 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1191 }
4633a7c4
LW		 1192 }
1193
1194 if (newdefout) {
ded8aa31
GS		 1195 if (!GvIO(newdefout))
1196 gv_IOadd(newdefout);
4633a7c4
LW		 1197 setdefout(newdefout);
1198 }
1199
a0d0e21e
LW		 1200 RETURN;
1201}
1202
1203PP(pp_getc)
1204{
27da23d5 1205 dVAR; dSP; dTARGET;
a0d0e21e 1206 GV *gv;
90133b69 1207 IO *io = NULL;
2ae324a7 1208 MAGIC *mg;
a0d0e21e 1209
32da55ab 1210 if (MAXARG == 0)
3280af22 1211 gv = PL_stdingv;
a0d0e21e
LW		 1212 else
1213 gv = (GV*)POPs;
2ae324a7 1214
5b468f54
AMS		 1215 if (gv && (io = GvIO(gv))
1216 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1217 {
f54cb97a 1218 const I32 gimme = GIMME_V;
2ae324a7 1219 PUSHMARK(SP);
5b468f54 1220 XPUSHs(SvTIED_obj((SV*)io, mg));
2ae324a7 1221 PUTBACK;
1222 ENTER;
864dbfa3 1223 call_method("GETC", gimme);
2ae324a7 1224 LEAVE;
1225 SPAGAIN;
54310121 1226 if (gimme == G_SCALAR)
1227 SvSetMagicSV_nosteal(TARG, TOPs);
2ae324a7 1228 RETURN;
1229 }
90133b69 1230 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
97e322ff
RGS		 1231 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1232 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
90133b69 1233 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1234 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1235 RETPUSHUNDEF;
90133b69 1236 }
bbce6d69 1237 TAINT;
c69006e4 1238 sv_setpvn(TARG, " ", 1);
9bc64814 1239 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
7d59b7e4
NIS		 1240 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1241 /* Find out how many bytes the char needs */
aa07b2f6 1242 Size_t len = UTF8SKIP(SvPVX_const(TARG));
7d59b7e4
NIS		 1243 if (len > 1) {
1244 SvGROW(TARG,len+1);
1245 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1246 SvCUR_set(TARG,1+len);
1247 }
1248 SvUTF8_on(TARG);
1249 }
a0d0e21e
LW		 1250 PUSHTARG;
1251 RETURN;
1252}
1253
1254PP(pp_read)
1255{
cea2e8a9 1256 return pp_sysread();
a0d0e21e
LW		 1257}
1258
76e3520e 1259STATIC OP *
cea2e8a9 1260S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
a0d0e21e 1261{
27da23d5 1262 dVAR;
c09156bb 1263 register PERL_CONTEXT *cx;
f54cb97a 1264 const I32 gimme = GIMME_V;
a0d0e21e
LW		 1265
1266 ENTER;
1267 SAVETMPS;
1268
146174a9 1269 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
a0d0e21e 1270 PUSHFORMAT(cx);
f39bc417 1271 cx->blk_sub.retop = retop;
dd2155a4 1272 PAD_SET_CUR(CvPADLIST(cv), 1);
a0d0e21e 1273
4633a7c4 1274 setdefout(gv); /* locally select filehandle so $% et al work */
a0d0e21e
LW		 1275 return CvSTART(cv);
1276}
1277
1278PP(pp_enterwrite)
1279{
39644a26 1280 dSP;
a0d0e21e
LW		 1281 register GV *gv;
1282 register IO *io;
1283 GV *fgv;
1284 CV *cv;
1285
1286 if (MAXARG == 0)
3280af22 1287 gv = PL_defoutgv;
a0d0e21e
LW		 1288 else {
1289 gv = (GV*)POPs;
1290 if (!gv)
3280af22 1291 gv = PL_defoutgv;
a0d0e21e
LW		 1292 }
1293 EXTEND(SP, 1);
1294 io = GvIO(gv);
1295 if (!io) {
1296 RETPUSHNO;
1297 }
1298 if (IoFMT_GV(io))
1299 fgv = IoFMT_GV(io);
1300 else
1301 fgv = gv;
1302
1303 cv = GvFORM(fgv);
a0d0e21e
LW		 1304 if (!cv) {
1305 if (fgv) {
1df70142 1306 SV * const tmpsv = sv_newmortal();
e62f0680 1307 const char *name;
43693395 1308 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
e62f0680 1309 name = SvPV_nolen_const(tmpsv);
1df70142
AL		 1310 if (name && *name)
1311 DIE(aTHX_ "Undefined format \"%s\" called", name);
a0d0e21e 1312 }
cea2e8a9 1313 DIE(aTHX_ "Not a format reference");
a0d0e21e 1314 }
44a8e56a 1315 if (CvCLONE(cv))
1316 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
a0d0e21e 1317
44a8e56a 1318 IoFLAGS(io) &= ~IOf_DIDTOP;
533c011a 1319 return doform(cv,gv,PL_op->op_next);
a0d0e21e
LW		 1320}
1321
1322PP(pp_leavewrite)
1323{
27da23d5 1324 dVAR; dSP;
a0d0e21e
LW		 1325 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1326 register IO *io = GvIOp(gv);
760ac839
LW		 1327 PerlIO *ofp = IoOFP(io);
1328 PerlIO *fp;
a0d0e21e
LW		 1329 SV **newsp;
1330 I32 gimme;
c09156bb 1331 register PERL_CONTEXT *cx;
a0d0e21e 1332
760ac839 1333 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
3280af22 1334 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
7ef822cd
JH		 1335 if (!io || !ofp)
1336 goto forget_top;
3280af22
NIS		 1337 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1338 PL_formtarget != PL_toptarget)
a0d0e21e 1339 {
4633a7c4
LW		 1340 GV *fgv;
1341 CV *cv;
a0d0e21e
LW		 1342 if (!IoTOP_GV(io)) {
1343 GV *topgv;
46fc3d4c 1344 SV *topname;
a0d0e21e
LW		 1345
1346 if (!IoTOP_NAME(io)) {
1347 if (!IoFMT_NAME(io))
1348 IoFMT_NAME(io) = savepv(GvNAME(gv));
0bd0581c 1349 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
7a5fd60d 1350 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
748a9306 1351 if ((topgv && GvFORM(topgv)) ||
a0d0e21e 1352 !gv_fetchpv("top",FALSE,SVt_PVFM))
2e0de35c 1353 IoTOP_NAME(io) = savesvpv(topname);
a0d0e21e 1354 else
ff5bdd37 1355 IoTOP_NAME(io) = savepvn("top", 3);
a0d0e21e
LW		 1356 }
1357 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1358 if (!topgv || !GvFORM(topgv)) {
b929a54b 1359 IoLINES_LEFT(io) = IoPAGE_LEN(io);
a0d0e21e
LW		 1360 goto forget_top;
1361 }
1362 IoTOP_GV(io) = topgv;
1363 }
748a9306
LW		 1364 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1365 I32 lines = IoLINES_LEFT(io);
504618e9 1366 const char *s = SvPVX_const(PL_formtarget);
8e07c86e
AD		 1367 if (lines <= 0) /* Yow, header didn't even fit!!! */
1368 goto forget_top;
748a9306
LW		 1369 while (lines-- > 0) {
1370 s = strchr(s, '\n');
1371 if (!s)
1372 break;
1373 s++;
1374 }
1375 if (s) {
f54cb97a 1376 const STRLEN save = SvCUR(PL_formtarget);
aa07b2f6 1377 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
d75029d0
NIS		 1378 do_print(PL_formtarget, ofp);
1379 SvCUR_set(PL_formtarget, save);
3280af22
NIS		 1380 sv_chop(PL_formtarget, s);
1381 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
748a9306
LW		 1382 }
1383 }
a0d0e21e 1384 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
d75029d0 1385 do_print(PL_formfeed, ofp);
a0d0e21e
LW		 1386 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1387 IoPAGE(io)++;
3280af22 1388 PL_formtarget = PL_toptarget;
748a9306 1389 IoFLAGS(io) |= IOf_DIDTOP;
4633a7c4
LW		 1390 fgv = IoTOP_GV(io);
1391 if (!fgv)
cea2e8a9 1392 DIE(aTHX_ "bad top format reference");
4633a7c4 1393 cv = GvFORM(fgv);
1df70142
AL		 1394 if (!cv) {
1395 SV * const sv = sv_newmortal();
b464bac0 1396 const char *name;
1df70142 1397 gv_efullname4(sv, fgv, Nullch, FALSE);
e62f0680 1398 name = SvPV_nolen_const(sv);
2dd78f96 1399 if (name && *name)
1df70142 1400 DIE(aTHX_ "Undefined top format \"%s\" called",name);
4633a7c4 1401 }
1df70142
AL		 1402 /* why no:
1403 else
1404 DIE(aTHX_ "Undefined top format called");
1405 ?*/
44a8e56a 1406 if (CvCLONE(cv))
1407 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
533c011a 1408 return doform(cv,gv,PL_op);
a0d0e21e
LW		 1409 }
1410
1411 forget_top:
3280af22 1412 POPBLOCK(cx,PL_curpm);
a0d0e21e
LW		 1413 POPFORMAT(cx);
1414 LEAVE;
1415
1416 fp = IoOFP(io);
1417 if (!fp) {
599cee73 1418 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1419 if (IoIFP(io))
1420 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1421 else if (ckWARN(WARN_CLOSED))
bc37a18f 1422 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1423 }
3280af22 1424 PUSHs(&PL_sv_no);
a0d0e21e
LW		 1425 }
1426 else {
3280af22 1427 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
599cee73 1428 if (ckWARN(WARN_IO))
9014280d 1429 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
a0d0e21e 1430 }
d75029d0 1431 if (!do_print(PL_formtarget, fp))
3280af22 1432 PUSHs(&PL_sv_no);
a0d0e21e 1433 else {
3280af22
NIS		 1434 FmLINES(PL_formtarget) = 0;
1435 SvCUR_set(PL_formtarget, 0);
1436 *SvEND(PL_formtarget) = '\0';
a0d0e21e 1437 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1438 (void)PerlIO_flush(fp);
3280af22 1439 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1440 }
1441 }
9cbac4c7 1442 /* bad_ofp: */
3280af22 1443 PL_formtarget = PL_bodytarget;
a0d0e21e 1444 PUTBACK;
f39bc417 1445 return cx->blk_sub.retop;
a0d0e21e
LW		 1446}
1447
1448PP(pp_prtf)
1449{
27da23d5 1450 dVAR; dSP; dMARK; dORIGMARK;
a0d0e21e
LW		 1451 GV *gv;
1452 IO *io;
760ac839 1453 PerlIO *fp;
26db47c4 1454 SV *sv;
46fc3d4c 1455 MAGIC *mg;
a0d0e21e 1456
533c011a 1457 if (PL_op->op_flags & OPf_STACKED)
a0d0e21e
LW		 1458 gv = (GV*)*++MARK;
1459 else
3280af22 1460 gv = PL_defoutgv;
46fc3d4c 1461
5b468f54
AMS		 1462 if (gv && (io = GvIO(gv))
1463 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1464 {
46fc3d4c 1465 if (MARK == ORIGMARK) {
4352c267 1466 MEXTEND(SP, 1);
46fc3d4c 1467 ++MARK;
1468 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1469 ++SP;
1470 }
1471 PUSHMARK(MARK - 1);
5b468f54 1472 *MARK = SvTIED_obj((SV*)io, mg);
46fc3d4c 1473 PUTBACK;
1474 ENTER;
864dbfa3 1475 call_method("PRINTF", G_SCALAR);
46fc3d4c 1476 LEAVE;
1477 SPAGAIN;
1478 MARK = ORIGMARK + 1;
1479 *MARK = *SP;
1480 SP = MARK;
1481 RETURN;
1482 }
1483
26db47c4 1484 sv = NEWSV(0,0);
a0d0e21e 1485 if (!(io = GvIO(gv))) {
2dd78f96
JH		 1486 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1487 report_evil_fh(gv, io, PL_op->op_type);
93189314 1488 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 1489 goto just_say_no;
1490 }
1491 else if (!(fp = IoOFP(io))) {
599cee73 1492 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
6e6ef6b2
NC		 1493 if (IoIFP(io))
1494 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
599cee73 1495 else if (ckWARN(WARN_CLOSED))
bc37a18f 1496 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 1497 }
93189314 1498 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
a0d0e21e
LW		 1499 goto just_say_no;
1500 }
1501 else {
1502 do_sprintf(sv, SP - MARK, MARK + 1);
1503 if (!do_print(sv, fp))
1504 goto just_say_no;
1505
1506 if (IoFLAGS(io) & IOf_FLUSH)
760ac839 1507 if (PerlIO_flush(fp) == EOF)
a0d0e21e
LW		 1508 goto just_say_no;
1509 }
1510 SvREFCNT_dec(sv);
1511 SP = ORIGMARK;
3280af22 1512 PUSHs(&PL_sv_yes);
a0d0e21e
LW		 1513 RETURN;
1514
1515 just_say_no:
1516 SvREFCNT_dec(sv);
1517 SP = ORIGMARK;
3280af22 1518 PUSHs(&PL_sv_undef);
a0d0e21e
LW		 1519 RETURN;
1520}
1521
c07a80fd 1522PP(pp_sysopen)
1523{
39644a26 1524 dSP;
c07a80fd 1525 GV *gv;
c07a80fd 1526 SV *sv;
e62f0680 1527 const char *tmps;
c07a80fd 1528 STRLEN len;
1df70142
AL		 1529 const int perm = (MAXARG > 3) ? POPi : 0666;
1530 const int mode = POPi;
c07a80fd 1531
c07a80fd 1532 sv = POPs;
1533 gv = (GV *)POPs;
1534
4592e6ca
NIS		 1535 /* Need TIEHANDLE method ? */
1536
e62f0680
NC		 1537 tmps = SvPV_const(sv, len);
1538 /* FIXME? do_open should do const */
1539 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
c07a80fd 1540 IoLINES(GvIOp(gv)) = 0;
3280af22 1541 PUSHs(&PL_sv_yes);
c07a80fd 1542 }
1543 else {
3280af22 1544 PUSHs(&PL_sv_undef);
c07a80fd 1545 }
1546 RETURN;
1547}
1548
a0d0e21e
LW		 1549PP(pp_sysread)
1550{
27da23d5 1551 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1552 int offset;
1553 GV *gv;
1554 IO *io;
1555 char *buffer;
5b54f415 1556 SSize_t length;
eb5c063a 1557 SSize_t count;
1e422769 1558 Sock_size_t bufsize;
748a9306 1559 SV *bufsv;
a0d0e21e 1560 STRLEN blen;
2ae324a7 1561 MAGIC *mg;
eb5c063a 1562 int fp_utf8;
1dd30107
NC		 1563 int buffer_utf8;
1564 SV *read_target;
eb5c063a
NIS		 1565 Size_t got = 0;
1566 Size_t wanted;
1d636c13 1567 bool charstart = FALSE;
87330c3c
JH		 1568 STRLEN charskip = 0;
1569 STRLEN skip = 0;
a0d0e21e
LW		 1570
1571 gv = (GV*)*++MARK;
5b468f54
AMS		 1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1573 && gv && (io = GvIO(gv))
1574 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
137443ea 1575 {
2ae324a7 1576 SV *sv;
1577
1578 PUSHMARK(MARK-1);
5b468f54 1579 *MARK = SvTIED_obj((SV*)io, mg);
2ae324a7 1580 ENTER;
864dbfa3 1581 call_method("READ", G_SCALAR);
2ae324a7 1582 LEAVE;
1583 SPAGAIN;
1584 sv = POPs;
1585 SP = ORIGMARK;
1586 PUSHs(sv);
1587 RETURN;
1588 }
1589
a0d0e21e
LW		 1590 if (!gv)
1591 goto say_undef;
748a9306 1592 bufsv = *++MARK;
ff68c719 1593 if (! SvOK(bufsv))
1594 sv_setpvn(bufsv, "", 0);
a0d0e21e 1595 length = SvIVx(*++MARK);
748a9306 1596 SETERRNO(0,0);
a0d0e21e
LW		 1597 if (MARK < SP)
1598 offset = SvIVx(*++MARK);
1599 else
1600 offset = 0;
1601 io = GvIO(gv);
b5fe5ca2
SR		 1602 if (!io || !IoIFP(io)) {
1603 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1604 report_evil_fh(gv, io, PL_op->op_type);
1605 SETERRNO(EBADF,RMS_IFI);
a0d0e21e 1606 goto say_undef;
b5fe5ca2 1607 }
0064a8a9 1608 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
7d59b7e4 1609 buffer = SvPVutf8_force(bufsv, blen);
1e54db1a 1610 /* UTF-8 may not have been set if they are all low bytes */
eb5c063a 1611 SvUTF8_on(bufsv);
9b9d7ce8 1612 buffer_utf8 = 0;
7d59b7e4
NIS		 1613 }
1614 else {
1615 buffer = SvPV_force(bufsv, blen);
1dd30107 1616 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
7d59b7e4
NIS		 1617 }
1618 if (length < 0)
1619 DIE(aTHX_ "Negative length");
eb5c063a 1620 wanted = length;
7d59b7e4 1621
d0965105
JH		 1622 charstart = TRUE;
1623 charskip = 0;
87330c3c 1624 skip = 0;
d0965105 1625
a0d0e21e 1626#ifdef HAS_SOCKET
533c011a 1627 if (PL_op->op_type == OP_RECV) {
46fc3d4c 1628 char namebuf[MAXPATHLEN];
17a8c7ba 1629#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
490ab354
JH		 1630 bufsize = sizeof (struct sockaddr_in);
1631#else
46fc3d4c 1632 bufsize = sizeof namebuf;
490ab354 1633#endif
abf95952
IZ		 1634#ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1635 if (bufsize >= 256)
1636 bufsize = 255;
1637#endif
eb160463 1638 buffer = SvGROW(bufsv, (STRLEN)(length+1));
bbce6d69 1639 /* 'offset' means 'flags' here */
eb5c063a 1640 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
46fc3d4c 1641 (struct sockaddr *)namebuf, &bufsize);
eb5c063a 1642 if (count < 0)
a0d0e21e 1643 RETPUSHUNDEF;
4107cc59
OF		 1644#ifdef EPOC
1645 /* Bogus return without padding */
1646 bufsize = sizeof (struct sockaddr_in);
1647#endif
eb5c063a 1648 SvCUR_set(bufsv, count);
748a9306
LW		 1649 *SvEND(bufsv) = '\0';
1650 (void)SvPOK_only(bufsv);
eb5c063a
NIS		 1651 if (fp_utf8)
1652 SvUTF8_on(bufsv);
748a9306 1653 SvSETMAGIC(bufsv);
aac0dd9a 1654 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1655 if (!(IoFLAGS(io) & IOf_UNTAINT))
1656 SvTAINTED_on(bufsv);
a0d0e21e 1657 SP = ORIGMARK;
46fc3d4c 1658 sv_setpvn(TARG, namebuf, bufsize);
a0d0e21e
LW		 1659 PUSHs(TARG);
1660 RETURN;
1661 }
1662#else
911d147d 1663 if (PL_op->op_type == OP_RECV)
cea2e8a9 1664 DIE(aTHX_ PL_no_sock_func, "recv");
a0d0e21e 1665#endif
eb5c063a
NIS		 1666 if (DO_UTF8(bufsv)) {
1667 /* offset adjust in characters not bytes */
1668 blen = sv_len_utf8(bufsv);
7d59b7e4 1669 }
bbce6d69 1670 if (offset < 0) {
eb160463 1671 if (-offset > (int)blen)
cea2e8a9 1672 DIE(aTHX_ "Offset outside string");
bbce6d69 1673 offset += blen;
1674 }
eb5c063a
NIS		 1675 if (DO_UTF8(bufsv)) {
1676 /* convert offset-as-chars to offset-as-bytes */
6960c29a
CH		 1677 if (offset >= (int)blen)
1678 offset += SvCUR(bufsv) - blen;
1679 else
1680 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
eb5c063a
NIS		 1681 }
1682 more_bytes:
cd52b7b2 1683 bufsize = SvCUR(bufsv);
1dd30107
NC		 1684 /* Allocating length + offset + 1 isn't perfect in the case of reading
1685 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1686 unduly.
1687 (should be 2 * length + offset + 1, or possibly something longer if
1688 PL_encoding is true) */
eb160463 1689 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
27da23d5 1690 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
cd52b7b2 1691 Zero(buffer+bufsize, offset-bufsize, char);
1692 }
eb5c063a 1693 buffer = buffer + offset;
1dd30107
NC		 1694 if (!buffer_utf8) {
1695 read_target = bufsv;
1696 } else {
1697 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1698 concatenate it to the current buffer. */
1699
1700 /* Truncate the existing buffer to the start of where we will be
1701 reading to: */
1702 SvCUR_set(bufsv, offset);
1703
1704 read_target = sv_newmortal();
862a34c6 1705 SvUPGRADE(read_target, SVt_PV);
fe2774ed 1706 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1dd30107 1707 }
eb5c063a 1708
533c011a 1709 if (PL_op->op_type == OP_SYSREAD) {
a7092146 1710#ifdef PERL_SOCK_SYSREAD_IS_RECV
50952442 1711 if (IoTYPE(io) == IoTYPE_SOCKET) {
eb5c063a
NIS		 1712 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1713 buffer, length, 0);
a7092146
GS		 1714 }
1715 else
1716#endif
1717 {
eb5c063a
NIS		 1718 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1719 buffer, length);
a7092146 1720 }
a0d0e21e
LW		 1721 }
1722 else
1723#ifdef HAS_SOCKET__bad_code_maybe
50952442 1724 if (IoTYPE(io) == IoTYPE_SOCKET) {
46fc3d4c 1725 char namebuf[MAXPATHLEN];
490ab354
JH		 1726#if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1727 bufsize = sizeof (struct sockaddr_in);
1728#else
46fc3d4c 1729 bufsize = sizeof namebuf;
490ab354 1730#endif
eb5c063a 1731 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
46fc3d4c 1732 (struct sockaddr *)namebuf, &bufsize);
a0d0e21e
LW		 1733 }
1734 else
1735#endif
3b02c43c 1736 {
eb5c063a
NIS		 1737 count = PerlIO_read(IoIFP(io), buffer, length);
1738 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1739 if (count == 0 && PerlIO_error(IoIFP(io)))
1740 count = -1;
3b02c43c 1741 }
eb5c063a 1742 if (count < 0) {
a00b5bd3 1743 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
6e6ef6b2 1744 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
a0d0e21e 1745 goto say_undef;
af8c498a 1746 }
aa07b2f6 1747 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1dd30107
NC		 1748 *SvEND(read_target) = '\0';
1749 (void)SvPOK_only(read_target);
0064a8a9 1750 if (fp_utf8 && !IN_BYTES) {
eb5c063a 1751 /* Look at utf8 we got back and count the characters */
1df70142 1752 const char *bend = buffer + count;
eb5c063a 1753 while (buffer < bend) {
d0965105
JH		 1754 if (charstart) {
1755 skip = UTF8SKIP(buffer);
1756 charskip = 0;
1757 }
1758 if (buffer - charskip + skip > bend) {
eb5c063a
NIS		 1759 /* partial character - try for rest of it */
1760 length = skip - (bend-buffer);
aa07b2f6 1761 offset = bend - SvPVX_const(bufsv);
d0965105
JH		 1762 charstart = FALSE;
1763 charskip += count;
eb5c063a
NIS		 1764 goto more_bytes;
1765 }
1766 else {
1767 got++;
1768 buffer += skip;
d0965105
JH		 1769 charstart = TRUE;
1770 charskip = 0;
eb5c063a
NIS		 1771 }
1772 }
1773 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1774 provided amount read (count) was what was requested (length)
1775 */
1776 if (got < wanted && count == length) {
d0965105 1777 length = wanted - got;
aa07b2f6 1778 offset = bend - SvPVX_const(bufsv);
eb5c063a
NIS		 1779 goto more_bytes;
1780 }
1781 /* return value is character count */
1782 count = got;
1783 SvUTF8_on(bufsv);
1784 }
1dd30107
NC		 1785 else if (buffer_utf8) {
1786 /* Let svcatsv upgrade the bytes we read in to utf8.
1787 The buffer is a mortal so will be freed soon. */
1788 sv_catsv_nomg(bufsv, read_target);
1789 }
748a9306 1790 SvSETMAGIC(bufsv);
aac0dd9a 1791 /* This should not be marked tainted if the fp is marked clean */
bbce6d69 1792 if (!(IoFLAGS(io) & IOf_UNTAINT))
1793 SvTAINTED_on(bufsv);
a0d0e21e 1794 SP = ORIGMARK;
eb5c063a 1795 PUSHi(count);
a0d0e21e
LW		 1796 RETURN;
1797
1798 say_undef:
1799 SP = ORIGMARK;
1800 RETPUSHUNDEF;
1801}
1802
1803PP(pp_syswrite)
1804{
27da23d5 1805 dVAR; dSP;
1df70142 1806 const int items = (SP - PL_stack_base) - TOPMARK;
092bebab 1807 if (items == 2) {
9f089d78 1808 SV *sv;
092bebab 1809 EXTEND(SP, 1);
9f089d78
SB		 1810 sv = sv_2mortal(newSViv(sv_len(*SP)));
1811 PUSHs(sv);
092bebab
JH		 1812 PUTBACK;
1813 }
cea2e8a9 1814 return pp_send();
a0d0e21e
LW		 1815}
1816
1817PP(pp_send)
1818{
27da23d5 1819 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 1820 GV *gv;
1821 IO *io;
748a9306 1822 SV *bufsv;
83003860 1823 const char *buffer;
8c99d73e
GS		 1824 Size_t length;
1825 SSize_t retval;
a0d0e21e 1826 STRLEN blen;
1d603a67 1827 MAGIC *mg;
a0d0e21e
LW		 1828
1829 gv = (GV*)*++MARK;
14befaf4 1830 if (PL_op->op_type == OP_SYSWRITE
5b468f54
AMS		 1831 && gv && (io = GvIO(gv))
1832 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
14befaf4 1833 {
1d603a67
GB		 1834 SV *sv;
1835
1836 PUSHMARK(MARK-1);
5b468f54 1837 *MARK = SvTIED_obj((SV*)io, mg);
1d603a67 1838 ENTER;
864dbfa3 1839 call_method("WRITE", G_SCALAR);
1d603a67
GB		 1840 LEAVE;
1841 SPAGAIN;
1842 sv = POPs;
1843 SP = ORIGMARK;
1844 PUSHs(sv);
1845 RETURN;
1846 }
a0d0e21e
LW		 1847 if (!gv)
1848 goto say_undef;
748a9306 1849 bufsv = *++MARK;
8c99d73e 1850#if Size_t_size > IVSIZE
3c001241 1851 length = (Size_t)SvNVx(*++MARK);
146174a9 1852#else
3c001241 1853 length = (Size_t)SvIVx(*++MARK);
146174a9 1854#endif
3c001241 1855 if ((SSize_t)length < 0)
cea2e8a9 1856 DIE(aTHX_ "Negative length");
748a9306 1857 SETERRNO(0,0);
a0d0e21e
LW		 1858 io = GvIO(gv);
1859 if (!io || !IoIFP(io)) {
8c99d73e 1860 retval = -1;
bc37a18f
RG		 1861 if (ckWARN(WARN_CLOSED))
1862 report_evil_fh(gv, io, PL_op->op_type);
b5fe5ca2 1863 SETERRNO(EBADF,RMS_IFI);
7d59b7e4
NIS		 1864 goto say_undef;
1865 }
1866
1867 if (PerlIO_isutf8(IoIFP(io))) {
6aa2f6a7
NC		 1868 if (!SvUTF8(bufsv)) {
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 buffer = sv_2pvutf8(bufsv, &blen);
1871 } else
83003860 1872 buffer = SvPV_const(bufsv, blen);
a0d0e21e 1873 }
7d59b7e4 1874 else {
4de5f5ca
JH		 1875 if (DO_UTF8(bufsv)) {
1876 /* Not modifying source SV, so making a temporary copy. */
1877 bufsv = sv_2mortal(newSVsv(bufsv));
1878 sv_utf8_downgrade(bufsv, FALSE);
1879 }
83003860 1880 buffer = SvPV_const(bufsv, blen);
7d59b7e4
NIS		 1881 }
1882
1883 if (PL_op->op_type == OP_SYSWRITE) {
1884 IV offset;
1885 if (DO_UTF8(bufsv)) {
1886 /* length and offset are in chars */
1887 blen = sv_len_utf8(bufsv);
1888 }
bbce6d69 1889 if (MARK < SP) {
a0d0e21e 1890 offset = SvIVx(*++MARK);
bbce6d69 1891 if (offset < 0) {
eb160463 1892 if (-offset > (IV)blen)
cea2e8a9 1893 DIE(aTHX_ "Offset outside string");
bbce6d69 1894 offset += blen;
eb160463 1895 } else if (offset >= (IV)blen && blen > 0)
cea2e8a9 1896 DIE(aTHX_ "Offset outside string");
bbce6d69 1897 } else
a0d0e21e
LW		 1898 offset = 0;
1899 if (length > blen - offset)
1900 length = blen - offset;
7d59b7e4 1901 if (DO_UTF8(bufsv)) {
83003860 1902 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
7d59b7e4
NIS		 1903 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1904 }
1905 else {
1906 buffer = buffer+offset;
1907 }
a7092146 1908#ifdef PERL_SOCK_SYSWRITE_IS_SEND
50952442 1909 if (IoTYPE(io) == IoTYPE_SOCKET) {
8c99d73e 1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1911 buffer, length, 0);
a7092146
GS		 1912 }
1913 else
1914#endif
1915 {
94e4c244 1916 /* See the note at doio.c:do_print about filesize limits. --jhi */
8c99d73e 1917 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
7d59b7e4 1918 buffer, length);
a7092146 1919 }
a0d0e21e
LW		 1920 }
1921#ifdef HAS_SOCKET
1922 else if (SP > MARK) {
a0d0e21e 1923 STRLEN mlen;
1df70142 1924 char * const 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;
1df70142 2048 const 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;
83003860 2148 const char *name;
7a5fd60d 2149
d05c1ba0
JH		 2150 if (SvTYPE(sv) == SVt_PVGV) {
2151 tmpgv = (GV*)sv; /* *main::FRED for example */
090bf15b 2152 goto do_ftruncate_gv;
d05c1ba0
JH		 2153 }
2154 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2155 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
090bf15b
SR		 2156 goto do_ftruncate_gv;
2157 }
2158 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2159 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2160 goto do_ftruncate_io;
d05c1ba0 2161 }
1e422769 2162
83003860 2163 name = SvPV_nolen_const(sv);
d05c1ba0 2164 TAINT_PROPER("truncate");
cbdc8872 2165#ifdef HAS_TRUNCATE
d05c1ba0
JH		 2166 if (truncate(name, len) < 0)
2167 result = 0;
cbdc8872 2168#else
d05c1ba0
JH		 2169 {
2170 int tmpfd;
2171
2172 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
cbdc8872 2173 result = 0;
d05c1ba0
JH		 2174 else {
2175 if (my_chsize(tmpfd, len) < 0)
2176 result = 0;
2177 PerlLIO_close(tmpfd);
2178 }
cbdc8872 2179 }
a0d0e21e 2180#endif
d05c1ba0 2181 }
a0d0e21e 2182
d05c1ba0
JH		 2183 if (result)
2184 RETPUSHYES;
2185 if (!errno)
93189314 2186 SETERRNO(EBADF,RMS_IFI);
d05c1ba0
JH		 2187 RETPUSHUNDEF;
2188 }
a0d0e21e
LW		 2189}
2190
2191PP(pp_fcntl)
2192{
cea2e8a9 2193 return pp_ioctl();
a0d0e21e
LW		 2194}
2195
2196PP(pp_ioctl)
2197{
39644a26 2198 dSP; dTARGET;
748a9306 2199 SV *argsv = POPs;
1df70142 2200 const unsigned int func = POPu;
e1ec3a88 2201 const int optype = PL_op->op_type;
a0d0e21e 2202 char *s;
324aa91a 2203 IV retval;
a0d0e21e 2204 GV *gv = (GV*)POPs;
c289d2f7 2205 IO *io = gv ? GvIOn(gv) : 0;
a0d0e21e 2206
748a9306 2207 if (!io || !argsv || !IoIFP(io)) {
c289d2f7
JH		 2208 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2209 report_evil_fh(gv, io, PL_op->op_type);
93189314 2210 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
a0d0e21e
LW		 2211 RETPUSHUNDEF;
2212 }
2213
748a9306 2214 if (SvPOK(argsv) || !SvNIOK(argsv)) {
a0d0e21e 2215 STRLEN len;
324aa91a 2216 STRLEN need;
748a9306 2217 s = SvPV_force(argsv, len);
324aa91a
HF		 2218 need = IOCPARM_LEN(func);
2219 if (len < need) {
2220 s = Sv_Grow(argsv, need + 1);
2221 SvCUR_set(argsv, need);
a0d0e21e
LW		 2222 }
2223
748a9306 2224 s[SvCUR(argsv)] = 17; /* a little sanity check here */
a0d0e21e
LW		 2225 }
2226 else {
748a9306 2227 retval = SvIV(argsv);
c529f79d 2228 s = INT2PTR(char*,retval); /* ouch */
a0d0e21e
LW		 2229 }
2230
2231 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2232
2233 if (optype == OP_IOCTL)
2234#ifdef HAS_IOCTL
76e3520e 2235 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
a0d0e21e 2236#else
cea2e8a9 2237 DIE(aTHX_ "ioctl is not implemented");
a0d0e21e
LW		 2238#endif
2239 else
c214f4ad
WB		 2240#ifndef HAS_FCNTL
2241 DIE(aTHX_ "fcntl is not implemented");
2242#else
55497cff 2243#if defined(OS2) && defined(__EMX__)
760ac839 2244 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
55497cff 2245#else
760ac839 2246 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
301e8125 2247#endif
6652bd42 2248#endif
a0d0e21e 2249
6652bd42 2250#if defined(HAS_IOCTL) || defined(HAS_FCNTL)
748a9306
LW		 2251 if (SvPOK(argsv)) {
2252 if (s[SvCUR(argsv)] != 17)
cea2e8a9 2253 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
53e06cf0 2254 OP_NAME(PL_op));
748a9306
LW		 2255 s[SvCUR(argsv)] = 0; /* put our null back */
2256 SvSETMAGIC(argsv); /* Assume it has changed */
a0d0e21e
LW		 2257 }
2258
2259 if (retval == -1)
2260 RETPUSHUNDEF;
2261 if (retval != 0) {
2262 PUSHi(retval);
2263 }
2264 else {
8903cb82 2265 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e 2266 }
4808266b 2267#endif
c214f4ad 2268 RETURN;
a0d0e21e
LW		 2269}
2270
2271PP(pp_flock)
2272{
9cad6237 2273#ifdef FLOCK
39644a26 2274 dSP; dTARGET;
a0d0e21e
LW		 2275 I32 value;
2276 int argtype;
2277 GV *gv;
bc37a18f 2278 IO *io = NULL;
760ac839 2279 PerlIO *fp;
16d20bd9 2280
a0d0e21e 2281 argtype = POPi;
32da55ab 2282 if (MAXARG == 0)
3280af22 2283 gv = PL_last_in_gv;
a0d0e21e
LW		 2284 else
2285 gv = (GV*)POPs;
bc37a18f
RG		 2286 if (gv && (io = GvIO(gv)))
2287 fp = IoIFP(io);
2288 else {
a0d0e21e 2289 fp = Nullfp;
bc37a18f
RG		 2290 io = NULL;
2291 }
a0d0e21e 2292 if (fp) {
68dc0745 2293 (void)PerlIO_flush(fp);
76e3520e 2294 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
a0d0e21e 2295 }
cb50131a 2296 else {
bc37a18f
RG		 2297 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2298 report_evil_fh(gv, io, PL_op->op_type);
a0d0e21e 2299 value = 0;
93189314 2300 SETERRNO(EBADF,RMS_IFI);
cb50131a 2301 }
a0d0e21e
LW		 2302 PUSHi(value);
2303 RETURN;
2304#else
cea2e8a9 2305 DIE(aTHX_ PL_no_func, "flock()");
a0d0e21e
LW		 2306#endif
2307}
2308
2309/* Sockets. */
2310
2311PP(pp_socket)
2312{
a0d0e21e 2313#ifdef HAS_SOCKET
9cad6237 2314 dSP;
a0d0e21e
LW		 2315 GV *gv;
2316 register IO *io;
2317 int protocol = POPi;
2318 int type = POPi;
2319 int domain = POPi;
2320 int fd;
2321
2322 gv = (GV*)POPs;
c289d2f7 2323 io = gv ? GvIOn(gv) : NULL;
a0d0e21e 2324
c289d2f7
JH		 2325 if (!gv || !io) {
2326 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2327 report_evil_fh(gv, io, PL_op->op_type);
2328 if (IoIFP(io))
2329 do_close(gv, FALSE);
93189314 2330 SETERRNO(EBADF,LIB_INVARG);
a0d0e21e
LW		 2331 RETPUSHUNDEF;
2332 }
2333
57171420
BS		 2334 if (IoIFP(io))
2335 do_close(gv, FALSE);
2336
a0d0e21e 2337 TAINT_PROPER("socket");
6ad3d225 2338 fd = PerlSock_socket(domain, type, protocol);
a0d0e21e
LW		 2339 if (fd < 0)
2340 RETPUSHUNDEF;
460c8493
IZ		 2341 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2342 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
50952442 2343 IoTYPE(io) = IoTYPE_SOCKET;
a0d0e21e 2344 if (!IoIFP(io) || !IoOFP(io)) {
760ac839
LW		 2345 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2346 if (IoOFP(io)) PerlIO_close(IoOFP(io));
6ad3d225 2347 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
a0d0e21e
LW		 2348 RETPUSHUNDEF;
2349 }
8d2a6795
GS		 2350#if defined(HAS_FCNTL) && defined(F_SETFD)
2351 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2352#endif
a0d0e21e 2353
d5ff79b3
OF		 2354#ifdef EPOC
2355 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2356#endif
2357
a0d0e21e
LW		 2358 RETPUSHYES;
2359#else
cea2e8a9 2360 DIE(aTHX_ PL_no_sock_func, "socket");
a0d0e21e
LW		 2361#endif
2362}
2363
2364PP(pp_sockpair)
2365{
c95c94b1 2366#if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
76ffd3b9 2367 dSP;
a0d0e21e
LW		 2368 GV *gv1;
2369 GV *gv2;
2370 register IO *io1;
2371 register IO *io2;
2372 int protocol = POPi;
2373 int type = POPi;
2374 int domain = POPi;
2375 int fd[2];
2376
2377 gv2 = (GV*)POPs;
2378 gv1 = (GV*)POPs;
c289d2f7
JH		 2379 io1 = gv1 ? GvIOn(gv1) : NULL;
2380 io2 = gv2 ? GvIOn(gv2) : NULL;
2381 if (!gv1 || !gv2 || !io1 || !io2) {
2382 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2383 if (!gv1 || !io1)
2384 report_evil_fh(gv1, io1, PL_op->op_type);
2385 if (!gv2 || !io2)
2386 report_evil_fh(gv1, io2, PL_op->op_type);
2387 }
2388 if (IoIFP(io1))
2389 do_close(gv1, FALSE);
2390 if (IoIFP(io2))
2391 do_close(gv2, FALSE);
a0d0e21e 2392 RETPUSHUNDEF;
c289d2f7 2393 }
a0d0e21e 2394
dc0d0a5f
JH		 2395 if (IoIFP(io1))
2396 do_close(gv1, FALSE);
2397 if (IoIFP(io2))
2398 do_close(gv2, FALSE);
57171420 2399
a0d0e21e 2400 TAINT_PROPER("socketpair");
6ad3d225 2401 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
a0d0e21e 2402 RETPUSHUNDEF;
460c8493
IZ		 2403 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2404 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
50952442 2405 IoTYPE(io1) = IoTYPE_SOCKET;
460c8493
IZ		 2406 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2407 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
50952442 2408 IoTYPE(io2) = IoTYPE_SOCKET;
a0d0e21e 2409 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
760ac839
LW		 2410 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2411 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
6ad3d225 2412 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
760ac839
LW		 2413 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2414 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
6ad3d225 2415 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
a0d0e21e
LW		 2416 RETPUSHUNDEF;
2417 }
8d2a6795
GS		 2418#if defined(HAS_FCNTL) && defined(F_SETFD)
2419 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2420 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2421#endif
a0d0e21e
LW		 2422
2423 RETPUSHYES;
2424#else
cea2e8a9 2425 DIE(aTHX_ PL_no_sock_func, "socketpair");
a0d0e21e
LW		 2426#endif
2427}
2428
2429PP(pp_bind)
2430{
a0d0e21e 2431#ifdef HAS_SOCKET
9cad6237 2432 dSP;
eec2d3df 2433#ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
82b3da69
JH		 2434 extern void GETPRIVMODE();
2435 extern void GETUSERMODE();
eec2d3df 2436#endif
748a9306 2437 SV *addrsv = POPs;
349d4f2f
NC		 2438 /* OK, so on what platform does bind modify addr? */
2439 const char *addr;
a0d0e21e
LW		 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
349d4f2f 2451 addr = SvPV_const(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;
349d4f2f 2494 const char *addr;
a0d0e21e
LW		 2495 GV *gv = (GV*)POPs;
2496 register IO *io = GvIOn(gv);
2497 STRLEN len;
2498
2499 if (!io || !IoIFP(io))
2500 goto nuts;
2501
349d4f2f 2502 addr = SvPV_const(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: {
349d4f2f 2689 const char *buf;
1e422769 2690 int aint;
2691 if (SvPOKp(sv)) {
2d8e6c8d 2692 STRLEN l;
349d4f2f 2693 buf = SvPV_const(sv, l);
2d8e6c8d 2694 len = l;
1e422769 2695 }
56ee1660 2696 else {
a0d0e21e 2697 aint = (int)SvIV(sv);
349d4f2f 2698 buf = (const char*)&aint;
a0d0e21e
LW		 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 */
349d4f2f
NC		 2762 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
490ab354 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
LW		 2806 I32 max = 13;
2807
533c011a 2808 if (PL_op->op_flags & OPf_REF) {
2dd78f96 2809 gv = cGVOP_gv;
8a4e5b40 2810 if (PL_op->op_type == OP_LSTAT) {
5d3e98de
RGS		 2811 if (gv != PL_defgv) {
2812 if (ckWARN(WARN_IO))
9014280d 2813 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de
RGS		 2814 "lstat() on filehandle %s", GvENAME(gv));
2815 } else if (PL_laststype != OP_LSTAT)
8a4e5b40 2816 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
8a4e5b40
DD		 2817 }
2818
748a9306 2819 do_fstat:
2dd78f96 2820 if (gv != PL_defgv) {
3280af22 2821 PL_laststype = OP_STAT;
2dd78f96 2822 PL_statgv = gv;
c69006e4 2823 sv_setpvn(PL_statname, "", 0);
2dd78f96
JH		 2824 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2825 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
a0d0e21e 2826 }
9ddeeac9 2827 if (PL_laststatval < 0) {
2dd78f96
JH		 2828 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2829 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
a0d0e21e 2830 max = 0;
9ddeeac9 2831 }
a0d0e21e
LW		 2832 }
2833 else {
748a9306
LW		 2834 SV* sv = POPs;
2835 if (SvTYPE(sv) == SVt_PVGV) {
2dd78f96 2836 gv = (GV*)sv;
748a9306
LW		 2837 goto do_fstat;
2838 }
2839 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2dd78f96 2840 gv = (GV*)SvRV(sv);
5d3e98de 2841 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
9014280d 2842 Perl_warner(aTHX_ packWARN(WARN_IO),
5d3e98de 2843 "lstat() on filehandle %s", GvENAME(gv));
748a9306
LW		 2844 goto do_fstat;
2845 }
0510663f 2846 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3280af22 2847 PL_statgv = Nullgv;
533c011a
NIS		 2848 PL_laststype = PL_op->op_type;
2849 if (PL_op->op_type == OP_LSTAT)
0510663f 2850 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
a0d0e21e 2851 else
0510663f 2852 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
3280af22 2853 if (PL_laststatval < 0) {
0510663f 2854 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
9014280d 2855 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
a0d0e21e
LW		 2856 max = 0;
2857 }
2858 }
2859
54310121 2860 gimme = GIMME_V;
2861 if (gimme != G_ARRAY) {
2862 if (gimme != G_VOID)
2863 XPUSHs(boolSV(max));
2864 RETURN;
a0d0e21e
LW		 2865 }
2866 if (max) {
36477c24 2867 EXTEND(SP, max);
2868 EXTEND_MORTAL(max);
1ff81528
PL		 2869 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
b448e4fe
JH		 2871 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
146174a9
CB		 2873#if Uid_t_size > IVSIZE
2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2875#else
23dcd6c8 2876# if Uid_t_sign <= 0
1ff81528 2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
23dcd6c8
JH		 2878# else
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2880# endif
146174a9 2881#endif
301e8125 2882#if Gid_t_size > IVSIZE
146174a9
CB		 2883 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2884#else
23dcd6c8 2885# if Gid_t_sign <= 0
1ff81528 2886 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
23dcd6c8
JH		 2887# else
2888 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2889# endif
146174a9 2890#endif
cbdc8872 2891#ifdef USE_STAT_RDEV
1ff81528 2892 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
cbdc8872 2893#else
79cb57f6 2894 PUSHs(sv_2mortal(newSVpvn("", 0)));
cbdc8872 2895#endif
146174a9 2896#if Off_t_size > IVSIZE
4a9d6100 2897 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
146174a9 2898#else
1ff81528 2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
146174a9 2900#endif
cbdc8872 2901#ifdef BIG_TIME
172ae379
JH		 2902 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
cbdc8872 2905#else
1ff81528
PL		 2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
cbdc8872 2909#endif
a0d0e21e 2910#ifdef USE_STAT_BLOCKS
b448e4fe
JH		 2911 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
a0d0e21e 2913#else
79cb57f6
GS		 2914 PUSHs(sv_2mortal(newSVpvn("", 0)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
a0d0e21e
LW		 2916#endif
2917 }
2918 RETURN;
2919}
2920
fbb0b3b3
RGS		 2921/* This macro is used by the stacked filetest operators :
2922 * if the previous filetest failed, short-circuit and pass its value.
2923 * Else, discard it from the stack and continue. --rgs
2924 */
2925#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2926 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2927 else { (void)POPs; PUTBACK; } \
2928 }
2929
a0d0e21e
LW		 2930PP(pp_ftrread)
2931{
9cad6237 2932 I32 result;
2a3ff820 2933 dSP;
fbb0b3b3 2934 STACKED_FTEST_CHECK;
5ff3f7a4 2935#if defined(HAS_ACCESS) && defined(R_OK)
1af34c76 2936 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2937 result = access(POPpx, R_OK);
5ff3f7a4
GS		 2938 if (result == 0)
2939 RETPUSHYES;
2940 if (result < 0)
2941 RETPUSHUNDEF;
2942 RETPUSHNO;
22865c03
GS		 2943 }
2944 else
cea2e8a9 2945 result = my_stat();
5ff3f7a4 2946#else
cea2e8a9 2947 result = my_stat();
5ff3f7a4 2948#endif
22865c03 2949 SPAGAIN;
a0d0e21e
LW		 2950 if (result < 0)
2951 RETPUSHUNDEF;
3280af22 2952 if (cando(S_IRUSR, 0, &PL_statcache))
a0d0e21e
LW		 2953 RETPUSHYES;
2954 RETPUSHNO;
2955}
2956
2957PP(pp_ftrwrite)
2958{
9cad6237 2959 I32 result;
2a3ff820 2960 dSP;
fbb0b3b3 2961 STACKED_FTEST_CHECK;
5ff3f7a4 2962#if defined(HAS_ACCESS) && defined(W_OK)
1af34c76 2963 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2964 result = access(POPpx, W_OK);
5ff3f7a4
GS		 2965 if (result == 0)
2966 RETPUSHYES;
2967 if (result < 0)
2968 RETPUSHUNDEF;
2969 RETPUSHNO;
22865c03
GS		 2970 }
2971 else
cea2e8a9 2972 result = my_stat();
5ff3f7a4 2973#else
cea2e8a9 2974 result = my_stat();
5ff3f7a4 2975#endif
22865c03 2976 SPAGAIN;
a0d0e21e
LW		 2977 if (result < 0)
2978 RETPUSHUNDEF;
3280af22 2979 if (cando(S_IWUSR, 0, &PL_statcache))
a0d0e21e
LW		 2980 RETPUSHYES;
2981 RETPUSHNO;
2982}
2983
2984PP(pp_ftrexec)
2985{
9cad6237 2986 I32 result;
2a3ff820 2987 dSP;
fbb0b3b3 2988 STACKED_FTEST_CHECK;
5ff3f7a4 2989#if defined(HAS_ACCESS) && defined(X_OK)
1af34c76 2990 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 2991 result = access(POPpx, X_OK);
5ff3f7a4
GS		 2992 if (result == 0)
2993 RETPUSHYES;
2994 if (result < 0)
2995 RETPUSHUNDEF;
2996 RETPUSHNO;
22865c03
GS		 2997 }
2998 else
cea2e8a9 2999 result = my_stat();
5ff3f7a4 3000#else
cea2e8a9 3001 result = my_stat();
5ff3f7a4 3002#endif
22865c03 3003 SPAGAIN;
a0d0e21e
LW		 3004 if (result < 0)
3005 RETPUSHUNDEF;
3280af22 3006 if (cando(S_IXUSR, 0, &PL_statcache))
a0d0e21e
LW		 3007 RETPUSHYES;
3008 RETPUSHNO;
3009}
3010
3011PP(pp_fteread)
3012{
9cad6237 3013 I32 result;
2a3ff820 3014 dSP;
fbb0b3b3 3015 STACKED_FTEST_CHECK;
5ff3f7a4 3016#ifdef PERL_EFF_ACCESS_R_OK
1af34c76 3017 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3018 result = PERL_EFF_ACCESS_R_OK(POPpx);
5ff3f7a4
GS		 3019 if (result == 0)
3020 RETPUSHYES;
3021 if (result < 0)
3022 RETPUSHUNDEF;
3023 RETPUSHNO;
22865c03
GS		 3024 }
3025 else
cea2e8a9 3026 result = my_stat();
5ff3f7a4 3027#else
cea2e8a9 3028 result = my_stat();
5ff3f7a4 3029#endif
22865c03 3030 SPAGAIN;
a0d0e21e
LW		 3031 if (result < 0)
3032 RETPUSHUNDEF;
3280af22 3033 if (cando(S_IRUSR, 1, &PL_statcache))
a0d0e21e
LW		 3034 RETPUSHYES;
3035 RETPUSHNO;
3036}
3037
3038PP(pp_ftewrite)
3039{
9cad6237 3040 I32 result;
2a3ff820 3041 dSP;
fbb0b3b3 3042 STACKED_FTEST_CHECK;
5ff3f7a4 3043#ifdef PERL_EFF_ACCESS_W_OK
1af34c76 3044 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
5ff3f7a4
GS		 3046 if (result == 0)
3047 RETPUSHYES;
3048 if (result < 0)
3049 RETPUSHUNDEF;
3050 RETPUSHNO;
22865c03
GS		 3051 }
3052 else
cea2e8a9 3053 result = my_stat();
5ff3f7a4 3054#else
cea2e8a9 3055 result = my_stat();
5ff3f7a4 3056#endif
22865c03 3057 SPAGAIN;
a0d0e21e
LW		 3058 if (result < 0)
3059 RETPUSHUNDEF;
3280af22 3060 if (cando(S_IWUSR, 1, &PL_statcache))
a0d0e21e
LW		 3061 RETPUSHYES;
3062 RETPUSHNO;
3063}
3064
3065PP(pp_fteexec)
3066{
9cad6237 3067 I32 result;
2a3ff820 3068 dSP;
fbb0b3b3 3069 STACKED_FTEST_CHECK;
5ff3f7a4 3070#ifdef PERL_EFF_ACCESS_X_OK
1af34c76 3071 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
43b06338 3072 result = PERL_EFF_ACCESS_X_OK(POPpx);
5ff3f7a4
GS		 3073 if (result == 0)
3074 RETPUSHYES;
3075 if (result < 0)
3076 RETPUSHUNDEF;
3077 RETPUSHNO;
22865c03
GS		 3078 }
3079 else
cea2e8a9 3080 result = my_stat();
5ff3f7a4 3081#else
cea2e8a9 3082 result = my_stat();
5ff3f7a4 3083#endif
22865c03 3084 SPAGAIN;
a0d0e21e
LW		 3085 if (result < 0)
3086 RETPUSHUNDEF;
3280af22 3087 if (cando(S_IXUSR, 1, &PL_statcache))
a0d0e21e
LW		 3088 RETPUSHYES;
3089 RETPUSHNO;
3090}
3091
3092PP(pp_ftis)
3093{
fbb0b3b3 3094 I32 result;
2a3ff820 3095 dSP;
fbb0b3b3
RGS		 3096 STACKED_FTEST_CHECK;
3097 result = my_stat();
3098 SPAGAIN;
a0d0e21e
LW		 3099 if (result < 0)
3100 RETPUSHUNDEF;
3101 RETPUSHYES;
3102}
3103
3104PP(pp_fteowned)
3105{
cea2e8a9 3106 return pp_ftrowned();
a0d0e21e
LW		 3107}
3108
3109PP(pp_ftrowned)
3110{
fbb0b3b3 3111 I32 result;
2a3ff820 3112 dSP;
fbb0b3b3
RGS		 3113 STACKED_FTEST_CHECK;
3114 result = my_stat();
3115 SPAGAIN;
a0d0e21e
LW		 3116 if (result < 0)
3117 RETPUSHUNDEF;
146174a9
CB		 3118 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3119 PL_euid : PL_uid) )
a0d0e21e
LW		 3120 RETPUSHYES;
3121 RETPUSHNO;
3122}
3123
3124PP(pp_ftzero)
3125{
fbb0b3b3 3126 I32 result;
2a3ff820 3127 dSP;
fbb0b3b3
RGS		 3128 STACKED_FTEST_CHECK;
3129 result = my_stat();
3130 SPAGAIN;
a0d0e21e
LW		 3131 if (result < 0)
3132 RETPUSHUNDEF;
146174a9 3133 if (PL_statcache.st_size == 0)
a0d0e21e
LW		 3134 RETPUSHYES;
3135 RETPUSHNO;
3136}
3137
3138PP(pp_ftsize)
3139{
fbb0b3b3 3140 I32 result;
2a3ff820 3141 dSP; dTARGET;
fbb0b3b3
RGS		 3142 STACKED_FTEST_CHECK;
3143 result = my_stat();
3144 SPAGAIN;
a0d0e21e
LW		 3145 if (result < 0)
3146 RETPUSHUNDEF;
146174a9
CB		 3147#if Off_t_size > IVSIZE
3148 PUSHn(PL_statcache.st_size);
3149#else
3280af22 3150 PUSHi(PL_statcache.st_size);
146174a9 3151#endif
a0d0e21e
LW		 3152 RETURN;
3153}
3154
3155PP(pp_ftmtime)
3156{
fbb0b3b3 3157 I32 result;
2a3ff820 3158 dSP; dTARGET;
fbb0b3b3
RGS		 3159 STACKED_FTEST_CHECK;
3160 result = my_stat();
3161 SPAGAIN;
a0d0e21e
LW		 3162 if (result < 0)
3163 RETPUSHUNDEF;
a80d47c2 3164 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
a0d0e21e
LW		 3165 RETURN;
3166}
3167
3168PP(pp_ftatime)
3169{
fbb0b3b3 3170 I32 result;
2a3ff820 3171 dSP; dTARGET;
fbb0b3b3
RGS		 3172 STACKED_FTEST_CHECK;
3173 result = my_stat();
3174 SPAGAIN;
a0d0e21e
LW		 3175 if (result < 0)
3176 RETPUSHUNDEF;
a80d47c2 3177 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
a0d0e21e
LW		 3178 RETURN;
3179}
3180
3181PP(pp_ftctime)
3182{
fbb0b3b3 3183 I32 result;
2a3ff820 3184 dSP; dTARGET;
fbb0b3b3
RGS		 3185 STACKED_FTEST_CHECK;
3186 result = my_stat();
3187 SPAGAIN;
a0d0e21e
LW		 3188 if (result < 0)
3189 RETPUSHUNDEF;
a80d47c2 3190 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
a0d0e21e
LW		 3191 RETURN;
3192}
3193
3194PP(pp_ftsock)
3195{
fbb0b3b3 3196 I32 result;
2a3ff820 3197 dSP;
fbb0b3b3
RGS		 3198 STACKED_FTEST_CHECK;
3199 result = my_stat();
3200 SPAGAIN;
a0d0e21e
LW		 3201 if (result < 0)
3202 RETPUSHUNDEF;
3280af22 3203 if (S_ISSOCK(PL_statcache.st_mode))
a0d0e21e
LW		 3204 RETPUSHYES;
3205 RETPUSHNO;
3206}
3207
3208PP(pp_ftchr)
3209{
fbb0b3b3 3210 I32 result;
2a3ff820 3211 dSP;
fbb0b3b3
RGS		 3212 STACKED_FTEST_CHECK;
3213 result = my_stat();
3214 SPAGAIN;
a0d0e21e
LW		 3215 if (result < 0)
3216 RETPUSHUNDEF;
3280af22 3217 if (S_ISCHR(PL_statcache.st_mode))
a0d0e21e
LW		 3218 RETPUSHYES;
3219 RETPUSHNO;
3220}
3221
3222PP(pp_ftblk)
3223{
fbb0b3b3 3224 I32 result;
2a3ff820 3225 dSP;
fbb0b3b3
RGS		 3226 STACKED_FTEST_CHECK;
3227 result = my_stat();
3228 SPAGAIN;
a0d0e21e
LW		 3229 if (result < 0)
3230 RETPUSHUNDEF;
3280af22 3231 if (S_ISBLK(PL_statcache.st_mode))
a0d0e21e
LW		 3232 RETPUSHYES;
3233 RETPUSHNO;
3234}
3235
3236PP(pp_ftfile)
3237{
fbb0b3b3 3238 I32 result;
2a3ff820 3239 dSP;
fbb0b3b3
RGS		 3240 STACKED_FTEST_CHECK;
3241 result = my_stat();
3242 SPAGAIN;
a0d0e21e
LW		 3243 if (result < 0)
3244 RETPUSHUNDEF;
3280af22 3245 if (S_ISREG(PL_statcache.st_mode))
a0d0e21e
LW		 3246 RETPUSHYES;
3247 RETPUSHNO;
3248}
3249
3250PP(pp_ftdir)
3251{
fbb0b3b3 3252 I32 result;
2a3ff820 3253 dSP;
fbb0b3b3
RGS		 3254 STACKED_FTEST_CHECK;
3255 result = my_stat();
3256 SPAGAIN;
a0d0e21e
LW		 3257 if (result < 0)
3258 RETPUSHUNDEF;
3280af22 3259 if (S_ISDIR(PL_statcache.st_mode))
a0d0e21e
LW		 3260 RETPUSHYES;
3261 RETPUSHNO;
3262}
3263
3264PP(pp_ftpipe)
3265{
fbb0b3b3 3266 I32 result;
2a3ff820 3267 dSP;
fbb0b3b3
RGS		 3268 STACKED_FTEST_CHECK;
3269 result = my_stat();
3270 SPAGAIN;
a0d0e21e
LW		 3271 if (result < 0)
3272 RETPUSHUNDEF;
3280af22 3273 if (S_ISFIFO(PL_statcache.st_mode))
a0d0e21e
LW		 3274 RETPUSHYES;
3275 RETPUSHNO;
3276}
3277
3278PP(pp_ftlink)
3279{
9cad6237 3280 I32 result = my_lstat();
2a3ff820 3281 dSP;
a0d0e21e
LW		 3282 if (result < 0)
3283 RETPUSHUNDEF;
3280af22 3284 if (S_ISLNK(PL_statcache.st_mode))
a0d0e21e
LW		 3285 RETPUSHYES;
3286 RETPUSHNO;
3287}
3288
3289PP(pp_ftsuid)
3290{
39644a26 3291 dSP;
a0d0e21e 3292#ifdef S_ISUID
fbb0b3b3
RGS		 3293 I32 result;
3294 STACKED_FTEST_CHECK;
3295 result = my_stat();
a0d0e21e
LW		 3296 SPAGAIN;
3297 if (result < 0)
3298 RETPUSHUNDEF;
3280af22 3299 if (PL_statcache.st_mode & S_ISUID)
a0d0e21e
LW		 3300 RETPUSHYES;
3301#endif
3302 RETPUSHNO;
3303}
3304
3305PP(pp_ftsgid)
3306{
39644a26 3307 dSP;
a0d0e21e 3308#ifdef S_ISGID
fbb0b3b3
RGS		 3309 I32 result;
3310 STACKED_FTEST_CHECK;
3311 result = my_stat();
a0d0e21e
LW		 3312 SPAGAIN;
3313 if (result < 0)
3314 RETPUSHUNDEF;
3280af22 3315 if (PL_statcache.st_mode & S_ISGID)
a0d0e21e
LW		 3316 RETPUSHYES;
3317#endif
3318 RETPUSHNO;
3319}
3320
3321PP(pp_ftsvtx)
3322{
39644a26 3323 dSP;
a0d0e21e 3324#ifdef S_ISVTX
fbb0b3b3
RGS		 3325 I32 result;
3326 STACKED_FTEST_CHECK;
3327 result = my_stat();
a0d0e21e
LW		 3328 SPAGAIN;
3329 if (result < 0)
3330 RETPUSHUNDEF;
3280af22 3331 if (PL_statcache.st_mode & S_ISVTX)
a0d0e21e
LW		 3332 RETPUSHYES;
3333#endif
3334 RETPUSHNO;
3335}
3336
3337PP(pp_fttty)
3338{
39644a26 3339 dSP;
a0d0e21e
LW		 3340 int fd;
3341 GV *gv;
7a5fd60d 3342 SV *tmpsv = Nullsv;
fb73857a 3343
fbb0b3b3
RGS		 3344 STACKED_FTEST_CHECK;
3345
533c011a 3346 if (PL_op->op_flags & OPf_REF)
146174a9 3347 gv = cGVOP_gv;
fb73857a 3348 else if (isGV(TOPs))
3349 gv = (GV*)POPs;
3350 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3351 gv = (GV*)SvRV(POPs);
a0d0e21e 3352 else
7a5fd60d 3353 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
fb73857a 3354
a0d0e21e 3355 if (GvIO(gv) && IoIFP(GvIOp(gv)))
760ac839 3356 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
7a5fd60d 3357 else if (tmpsv && SvOK(tmpsv)) {
349d4f2f 3358 const char *tmps = SvPV_nolen_const(tmpsv);
7a5fd60d
NC		 3359 if (isDIGIT(*tmps))
3360 fd = atoi(tmps);
3361 else
3362 RETPUSHUNDEF;
3363 }
a0d0e21e
LW		 3364 else
3365 RETPUSHUNDEF;
6ad3d225 3366 if (PerlLIO_isatty(fd))
a0d0e21e
LW		 3367 RETPUSHYES;
3368 RETPUSHNO;
3369}
3370
16d20bd9
AD		 3371#if defined(atarist) /* this will work with atariST. Configure will
3372 make guesses for other systems. */
3373# define FILE_base(f) ((f)->_base)
3374# define FILE_ptr(f) ((f)->_ptr)
3375# define FILE_cnt(f) ((f)->_cnt)
3376# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
a0d0e21e
LW		 3377#endif
3378
3379PP(pp_fttext)
3380{
39644a26 3381 dSP;
a0d0e21e
LW		 3382 I32 i;
3383 I32 len;
3384 I32 odd = 0;
3385 STDCHAR tbuf[512];
3386 register STDCHAR *s;
3387 register IO *io;
5f05dabc 3388 register SV *sv;
3389 GV *gv;
146174a9 3390 PerlIO *fp;
a0d0e21e 3391
fbb0b3b3
RGS		 3392 STACKED_FTEST_CHECK;
3393
533c011a 3394 if (PL_op->op_flags & OPf_REF)
146174a9 3395 gv = cGVOP_gv;
5f05dabc 3396 else if (isGV(TOPs))
3397 gv = (GV*)POPs;
3398 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3399 gv = (GV*)SvRV(POPs);
3400 else
3401 gv = Nullgv;
3402
3403 if (gv) {
a0d0e21e 3404 EXTEND(SP, 1);
3280af22
NIS		 3405 if (gv == PL_defgv) {
3406 if (PL_statgv)
3407 io = GvIO(PL_statgv);
a0d0e21e 3408 else {
3280af22 3409 sv = PL_statname;
a0d0e21e
LW		 3410 goto really_filename;
3411 }
3412 }
3413 else {
3280af22
NIS		 3414 PL_statgv = gv;
3415 PL_laststatval = -1;
c69006e4 3416 sv_setpvn(PL_statname, "", 0);
3280af22 3417 io = GvIO(PL_statgv);
a0d0e21e
LW		 3418 }
3419 if (io && IoIFP(io)) {
5f05dabc 3420 if (! PerlIO_has_base(IoIFP(io)))
cea2e8a9 3421 DIE(aTHX_ "-T and -B not implemented on filehandles");
3280af22
NIS		 3422 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3423 if (PL_laststatval < 0)
5f05dabc 3424 RETPUSHUNDEF;
9cbac4c7 3425 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
533c011a 3426 if (PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3427 RETPUSHNO;
3428 else
3429 RETPUSHYES;
9cbac4c7 3430 }
a20bf0c3 3431 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
760ac839 3432 i = PerlIO_getc(IoIFP(io));
a0d0e21e 3433 if (i != EOF)
760ac839 3434 (void)PerlIO_ungetc(IoIFP(io),i);
a0d0e21e 3435 }
a20bf0c3 3436 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
a0d0e21e 3437 RETPUSHYES;
a20bf0c3
JH		 3438 len = PerlIO_get_bufsiz(IoIFP(io));
3439 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
760ac839
LW		 3440 /* sfio can have large buffers - limit to 512 */
3441 if (len > 512)
3442 len = 512;
a0d0e21e
LW		 3443 }
3444 else {
2dd78f96 3445 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
146174a9 3446 gv = cGVOP_gv;
2dd78f96 3447 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
146174a9 3448 }
93189314 3449 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 3450 RETPUSHUNDEF;
3451 }
3452 }
3453 else {
3454 sv = POPs;
5f05dabc 3455 really_filename:
3280af22 3456 PL_statgv = Nullgv;
5c9aa243 3457 PL_laststype = OP_STAT;
d5263905 3458 sv_setpv(PL_statname, SvPV_nolen_const(sv));
aa07b2f6 3459 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
349d4f2f
NC		 3460 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3461 '\n'))
9014280d 3462 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
a0d0e21e
LW		 3463 RETPUSHUNDEF;
3464 }
146174a9
CB		 3465 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3466 if (PL_laststatval < 0) {
3467 (void)PerlIO_close(fp);
5f05dabc 3468 RETPUSHUNDEF;
146174a9 3469 }
60382766 3470 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
146174a9
CB		 3471 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3472 (void)PerlIO_close(fp);
a0d0e21e 3473 if (len <= 0) {
533c011a 3474 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
a0d0e21e
LW		 3475 RETPUSHNO; /* special case NFS directories */
3476 RETPUSHYES; /* null file is anything */
3477 }
3478 s = tbuf;
3479 }
3480
3481 /* now scan s to look for textiness */
4633a7c4 3482 /* XXX ASCII dependent code */
a0d0e21e 3483
146174a9
CB		 3484#if defined(DOSISH) || defined(USEMYBINMODE)
3485 /* ignore trailing ^Z on short files */
3486 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3487 --len;
3488#endif
3489
a0d0e21e
LW		 3490 for (i = 0; i < len; i++, s++) {
3491 if (!*s) { /* null never allowed in text */
3492 odd += len;
3493 break;
3494 }
9d116dd7 3495#ifdef EBCDIC
301e8125 3496 else if (!(isPRINT(*s) || isSPACE(*s)))
9d116dd7
JH		 3497 odd++;
3498#else
146174a9
CB		 3499 else if (*s & 128) {
3500#ifdef USE_LOCALE
2de3dbcc 3501 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
b3f66c68
GS		 3502 continue;
3503#endif
3504 /* utf8 characters don't count as odd */
fd400ab9 3505 if (UTF8_IS_START(*s)) {
b3f66c68
GS		 3506 int ulen = UTF8SKIP(s);
3507 if (ulen < len - i) {
3508 int j;
3509 for (j = 1; j < ulen; j++) {
fd400ab9 3510 if (!UTF8_IS_CONTINUATION(s[j]))
b3f66c68
GS		 3511 goto not_utf8;
3512 }
3513 --ulen; /* loop does extra increment */
3514 s += ulen;
3515 i += ulen;
3516 continue;
3517 }
3518 }
3519 not_utf8:
3520 odd++;
146174a9 3521 }
a0d0e21e
LW		 3522 else if (*s < 32 &&
3523 *s != '\n' && *s != '\r' && *s != '\b' &&
3524 *s != '\t' && *s != '\f' && *s != 27)
3525 odd++;
9d116dd7 3526#endif
a0d0e21e
LW		 3527 }
3528
533c011a 3529 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
a0d0e21e
LW		 3530 RETPUSHNO;
3531 else
3532 RETPUSHYES;
3533}
3534
3535PP(pp_ftbinary)
3536{
cea2e8a9 3537 return pp_fttext();
a0d0e21e
LW		 3538}
3539
3540/* File calls. */
3541
3542PP(pp_chdir)
3543{
39644a26 3544 dSP; dTARGET;
5c144d81 3545 const char *tmps;
a0d0e21e
LW		 3546 SV **svp;
3547
35ae6b54 3548 if( MAXARG == 1 )
5c144d81 3549 tmps = POPpconstx;
35ae6b54
MS		 3550 else
3551 tmps = 0;
3552
3553 if( !tmps || !*tmps ) {
3554 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3555 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
491527d0 3556#ifdef VMS
35ae6b54 3557 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
491527d0 3558#endif
35ae6b54
MS		 3559 )
3560 {
3561 if( MAXARG == 1 )
9014280d 3562 deprecate("chdir('') or chdir(undef) as chdir()");
8c074e2a 3563 tmps = SvPV_nolen_const(*svp);
35ae6b54 3564 }
72f496dc 3565 else {
389ec635 3566 PUSHi(0);
b7ab37f8 3567 TAINT_PROPER("chdir");
389ec635
MS		 3568 RETURN;
3569 }
8ea155d1 3570 }
8ea155d1 3571
a0d0e21e 3572 TAINT_PROPER("chdir");
6ad3d225 3573 PUSHi( PerlDir_chdir(tmps) >= 0 );
748a9306
LW		 3574#ifdef VMS
3575 /* Clear the DEFAULT element of ENV so we'll get the new value
3576 * in the future. */
6b88bc9c 3577 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
748a9306 3578#endif
a0d0e21e
LW		 3579 RETURN;
3580}
3581
3582PP(pp_chown)
3583{
a0d0e21e 3584#ifdef HAS_CHOWN
76ffd3b9
IZ		 3585 dSP; dMARK; dTARGET;
3586 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3587
a0d0e21e
LW		 3588 SP = MARK;
3589 PUSHi(value);
3590 RETURN;
3591#else
0322a713 3592 DIE(aTHX_ PL_no_func, "chown");
a0d0e21e
LW		 3593#endif
3594}
3595
3596PP(pp_chroot)
3597{
a0d0e21e 3598#ifdef HAS_CHROOT
76ffd3b9 3599 dSP; dTARGET;
d05c1ba0 3600 char *tmps = POPpx;
a0d0e21e
LW		 3601 TAINT_PROPER("chroot");
3602 PUSHi( chroot(tmps) >= 0 );
3603 RETURN;
3604#else
cea2e8a9 3605 DIE(aTHX_ PL_no_func, "chroot");
a0d0e21e
LW		 3606#endif
3607}
3608
3609PP(pp_unlink)
3610{
39644a26 3611 dSP; dMARK; dTARGET;
a0d0e21e 3612 I32 value;
533c011a 3613 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 3614 SP = MARK;
3615 PUSHi(value);
3616 RETURN;
3617}
3618
3619PP(pp_chmod)
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_utime)
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_rename)
3640{
39644a26 3641 dSP; dTARGET;
a0d0e21e 3642 int anum;
e62f0680
NC		 3643 const char *tmps2 = POPpconstx;
3644 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3645 TAINT_PROPER("rename");
3646#ifdef HAS_RENAME
baed7233 3647 anum = PerlLIO_rename(tmps, tmps2);
a0d0e21e 3648#else
6b88bc9c 3649 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
ed969818
W		 3650 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3651 anum = 1;
3652 else {
3654eb6c 3653 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
ed969818
W		 3654 (void)UNLINK(tmps2);
3655 if (!(anum = link(tmps, tmps2)))
3656 anum = UNLINK(tmps);
3657 }
a0d0e21e
LW		 3658 }
3659#endif
3660 SETi( anum >= 0 );
3661 RETURN;
3662}
3663
3664PP(pp_link)
3665{
a0d0e21e 3666#ifdef HAS_LINK
370f6000 3667 dSP; dTARGET;
e62f0680
NC		 3668 const char *tmps2 = POPpconstx;
3669 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e 3670 TAINT_PROPER("link");
146174a9 3671 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
65850d11 3672 RETURN;
a0d0e21e 3673#else
0322a713 3674 DIE(aTHX_ PL_no_func, "link");
a0d0e21e 3675#endif
a0d0e21e
LW		 3676}
3677
3678PP(pp_symlink)
3679{
a0d0e21e 3680#ifdef HAS_SYMLINK
9cad6237 3681 dSP; dTARGET;
83003860
NC		 3682 const char *tmps2 = POPpconstx;
3683 const char *tmps = SvPV_nolen_const(TOPs);
a0d0e21e
LW		 3684 TAINT_PROPER("symlink");
3685 SETi( symlink(tmps, tmps2) >= 0 );
3686 RETURN;
3687#else
cea2e8a9 3688 DIE(aTHX_ PL_no_func, "symlink");
a0d0e21e
LW		 3689#endif
3690}
3691
3692PP(pp_readlink)
3693{
76ffd3b9 3694 dSP;
a0d0e21e 3695#ifdef HAS_SYMLINK
76ffd3b9 3696 dTARGET;
10516c54 3697 const char *tmps;
46fc3d4c 3698 char buf[MAXPATHLEN];
a0d0e21e 3699 int len;
46fc3d4c 3700
fb73857a 3701#ifndef INCOMPLETE_TAINTS
3702 TAINT;
3703#endif
10516c54 3704 tmps = POPpconstx;
97dcea33 3705 len = readlink(tmps, buf, sizeof(buf) - 1);
a0d0e21e
LW		 3706 EXTEND(SP, 1);
3707 if (len < 0)
3708 RETPUSHUNDEF;
3709 PUSHp(buf, len);
3710 RETURN;
3711#else
3712 EXTEND(SP, 1);
3713 RETSETUNDEF; /* just pretend it's a normal file */
3714#endif
3715}
3716
3717#if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
ba106d47 3718STATIC int
b464bac0 3719S_dooneliner(pTHX_ const char *cmd, const char *filename)
a0d0e21e 3720{
b464bac0 3721 char * const save_filename = filename;
1e422769 3722 char *cmdline;
3723 char *s;
760ac839 3724 PerlIO *myfp;
1e422769 3725 int anum = 1;
a0d0e21e 3726
1e422769 3727 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3728 strcpy(cmdline, cmd);
3729 strcat(cmdline, " ");
3730 for (s = cmdline + strlen(cmdline); *filename; ) {
a0d0e21e
LW		 3731 *s++ = '\\';
3732 *s++ = *filename++;
3733 }
3734 strcpy(s, " 2>&1");
6ad3d225 3735 myfp = PerlProc_popen(cmdline, "r");
1e422769 3736 Safefree(cmdline);
3737
a0d0e21e 3738 if (myfp) {
1e422769 3739 SV *tmpsv = sv_newmortal();
6b88bc9c 3740 /* Need to save/restore 'PL_rs' ?? */
760ac839 3741 s = sv_gets(tmpsv, myfp, 0);
6ad3d225 3742 (void)PerlProc_pclose(myfp);
a0d0e21e 3743 if (s != Nullch) {
1e422769 3744 int e;
3745 for (e = 1;
a0d0e21e 3746#ifdef HAS_SYS_ERRLIST
1e422769 3747 e <= sys_nerr
3748#endif
3749 ; e++)
3750 {
3751 /* you don't see this */
3752 char *errmsg =
3753#ifdef HAS_SYS_ERRLIST
3754 sys_errlist[e]
a0d0e21e 3755#else
1e422769 3756 strerror(e)
a0d0e21e 3757#endif
1e422769 3758 ;
3759 if (!errmsg)
3760 break;
3761 if (instr(s, errmsg)) {
3762 SETERRNO(e,0);
3763 return 0;
3764 }
a0d0e21e 3765 }
748a9306 3766 SETERRNO(0,0);
a0d0e21e
LW		 3767#ifndef EACCES
3768#define EACCES EPERM
3769#endif
1e422769 3770 if (instr(s, "cannot make"))
93189314 3771 SETERRNO(EEXIST,RMS_FEX);
1e422769 3772 else if (instr(s, "existing file"))
93189314 3773 SETERRNO(EEXIST,RMS_FEX);
1e422769 3774 else if (instr(s, "ile exists"))
93189314 3775 SETERRNO(EEXIST,RMS_FEX);
1e422769 3776 else if (instr(s, "non-exist"))
93189314 3777 SETERRNO(ENOENT,RMS_FNF);
1e422769 3778 else if (instr(s, "does not exist"))
93189314 3779 SETERRNO(ENOENT,RMS_FNF);
1e422769 3780 else if (instr(s, "not empty"))
93189314 3781 SETERRNO(EBUSY,SS_DEVOFFLINE);
1e422769 3782 else if (instr(s, "cannot access"))
93189314 3783 SETERRNO(EACCES,RMS_PRV);
a0d0e21e 3784 else
93189314 3785 SETERRNO(EPERM,RMS_PRV);
a0d0e21e
LW		 3786 return 0;
3787 }
3788 else { /* some mkdirs return no failure indication */
6b88bc9c 3789 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
911d147d 3790 if (PL_op->op_type == OP_RMDIR)
a0d0e21e
LW		 3791 anum = !anum;
3792 if (anum)
748a9306 3793 SETERRNO(0,0);
a0d0e21e 3794 else
93189314 3795 SETERRNO(EACCES,RMS_PRV); /* a guess */
a0d0e21e
LW		 3796 }
3797 return anum;
3798 }
3799 else
3800 return 0;
3801}
3802#endif
3803
0c54f65b
RGS		 3804/* This macro removes trailing slashes from a directory name.
3805 * Different operating and file systems take differently to
3806 * trailing slashes. According to POSIX 1003.1 1996 Edition
3807 * any number of trailing slashes should be allowed.
3808 * Thusly we snip them away so that even non-conforming
3809 * systems are happy.
3810 * We should probably do this "filtering" for all
3811 * the functions that expect (potentially) directory names:
3812 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3813 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3814
5c144d81 3815#define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
0c54f65b
RGS		 3816 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3817 do { \
3818 (len)--; \
3819 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3820 (tmps) = savepvn((tmps), (len)); \
3821 (copy) = TRUE; \
3822 }
3823
a0d0e21e
LW		 3824PP(pp_mkdir)
3825{
39644a26 3826 dSP; dTARGET;
5a211162 3827 int mode;
a0d0e21e
LW		 3828#ifndef HAS_MKDIR
3829 int oldumask;
3830#endif
df25ddba 3831 STRLEN len;
5c144d81 3832 const char *tmps;
df25ddba 3833 bool copy = FALSE;
5a211162
GS		 3834
3835 if (MAXARG > 1)
3836 mode = POPi;
3837 else
3838 mode = 0777;
3839
0c54f65b 3840 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3841
3842 TAINT_PROPER("mkdir");
3843#ifdef HAS_MKDIR
6ad3d225 3844 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
a0d0e21e
LW		 3845#else
3846 SETi( dooneliner("mkdir", tmps) );
6ad3d225
GS		 3847 oldumask = PerlLIO_umask(0);
3848 PerlLIO_umask(oldumask);
3849 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
a0d0e21e 3850#endif
df25ddba
JH		 3851 if (copy)
3852 Safefree(tmps);
a0d0e21e
LW		 3853 RETURN;
3854}
3855
3856PP(pp_rmdir)
3857{
39644a26 3858 dSP; dTARGET;
0c54f65b 3859 STRLEN len;
5c144d81 3860 const char *tmps;
0c54f65b 3861 bool copy = FALSE;
a0d0e21e 3862
0c54f65b 3863 TRIMSLASHES(tmps,len,copy);
a0d0e21e
LW		 3864 TAINT_PROPER("rmdir");
3865#ifdef HAS_RMDIR
0c54f65b 3866 SETi( PerlDir_rmdir(tmps) >= 0 );
a0d0e21e 3867#else
0c54f65b 3868 SETi( dooneliner("rmdir", tmps) );
a0d0e21e 3869#endif
0c54f65b
RGS		 3870 if (copy)
3871 Safefree(tmps);
a0d0e21e
LW		 3872 RETURN;
3873}
3874
3875/* Directory calls. */
3876
3877PP(pp_open_dir)
3878{
a0d0e21e 3879#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 3880 dSP;
10516c54 3881 const char *dirname = POPpconstx;
1e2c6ed7
JH		 3882 GV *gv = (GV*)POPs;
3883 register IO *io = GvIOn(gv);
a0d0e21e
LW		 3884
3885 if (!io)
3886 goto nope;
3887
3888 if (IoDIRP(io))
6ad3d225
GS		 3889 PerlDir_close(IoDIRP(io));
3890 if (!(IoDIRP(io) = PerlDir_open(dirname)))
a0d0e21e
LW		 3891 goto nope;
3892
3893 RETPUSHYES;
3894nope:
3895 if (!errno)
93189314 3896 SETERRNO(EBADF,RMS_DIR);
a0d0e21e
LW		 3897 RETPUSHUNDEF;
3898#else
cea2e8a9 3899 DIE(aTHX_ PL_no_dir_func, "opendir");
a0d0e21e
LW		 3900#endif
3901}
3902
3903PP(pp_readdir)
3904{
34b7f128
AMS		 3905#if !defined(Direntry_t) || !defined(HAS_READDIR)
3906 DIE(aTHX_ PL_no_dir_func, "readdir");
3907#else
fd8cd3a3 3908#if !defined(I_DIRENT) && !defined(VMS)
20ce7b12 3909 Direntry_t *readdir (DIR *);
a0d0e21e 3910#endif
34b7f128
AMS		 3911 dSP;
3912
3913 SV *sv;
f54cb97a 3914 const I32 gimme = GIMME;
34b7f128 3915 GV *gv = (GV *)POPs;
a0d0e21e 3916 register Direntry_t *dp;
a0d0e21e
LW		 3917 register IO *io = GvIOn(gv);
3918
3919 if (!io || !IoDIRP(io))
3920 goto nope;
3921
34b7f128
AMS		 3922 do {
3923 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3924 if (!dp)
3925 break;
a0d0e21e 3926#ifdef DIRNAMLEN
34b7f128 3927 sv = newSVpvn(dp->d_name, dp->d_namlen);
a0d0e21e 3928#else
34b7f128 3929 sv = newSVpv(dp->d_name, 0);
fb73857a 3930#endif
3931#ifndef INCOMPLETE_TAINTS
34b7f128
AMS		 3932 if (!(IoFLAGS(io) & IOf_UNTAINT))
3933 SvTAINTED_on(sv);
a0d0e21e 3934#endif
34b7f128 3935 XPUSHs(sv_2mortal(sv));
a0d0e21e 3936 }
34b7f128
AMS		 3937 while (gimme == G_ARRAY);
3938
3939 if (!dp && gimme != G_ARRAY)
3940 goto nope;
3941
a0d0e21e
LW		 3942 RETURN;
3943
3944nope:
3945 if (!errno)
93189314 3946 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3947 if (GIMME == G_ARRAY)
3948 RETURN;
3949 else
3950 RETPUSHUNDEF;
a0d0e21e
LW		 3951#endif
3952}
3953
3954PP(pp_telldir)
3955{
a0d0e21e 3956#if defined(HAS_TELLDIR) || defined(telldir)
27da23d5 3957 dVAR; dSP; dTARGET;
968dcd91
JH		 3958 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3959 /* XXX netbsd still seemed to.
3960 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3961 --JHI 1999-Feb-02 */
3962# if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
20ce7b12 3963 long telldir (DIR *);
dfe9444c 3964# endif
a0d0e21e
LW		 3965 GV *gv = (GV*)POPs;
3966 register IO *io = GvIOn(gv);
3967
3968 if (!io || !IoDIRP(io))
3969 goto nope;
3970
6ad3d225 3971 PUSHi( PerlDir_tell(IoDIRP(io)) );
a0d0e21e
LW		 3972 RETURN;
3973nope:
3974 if (!errno)
93189314 3975 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3976 RETPUSHUNDEF;
3977#else
cea2e8a9 3978 DIE(aTHX_ PL_no_dir_func, "telldir");
a0d0e21e
LW		 3979#endif
3980}
3981
3982PP(pp_seekdir)
3983{
a0d0e21e 3984#if defined(HAS_SEEKDIR) || defined(seekdir)
9cad6237 3985 dSP;
a0d0e21e
LW		 3986 long along = POPl;
3987 GV *gv = (GV*)POPs;
3988 register IO *io = GvIOn(gv);
3989
3990 if (!io || !IoDIRP(io))
3991 goto nope;
3992
6ad3d225 3993 (void)PerlDir_seek(IoDIRP(io), along);
a0d0e21e
LW		 3994
3995 RETPUSHYES;
3996nope:
3997 if (!errno)
93189314 3998 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 3999 RETPUSHUNDEF;
4000#else
cea2e8a9 4001 DIE(aTHX_ PL_no_dir_func, "seekdir");
a0d0e21e
LW		 4002#endif
4003}
4004
4005PP(pp_rewinddir)
4006{
a0d0e21e 4007#if defined(HAS_REWINDDIR) || defined(rewinddir)
9cad6237 4008 dSP;
a0d0e21e
LW		 4009 GV *gv = (GV*)POPs;
4010 register IO *io = GvIOn(gv);
4011
4012 if (!io || !IoDIRP(io))
4013 goto nope;
4014
6ad3d225 4015 (void)PerlDir_rewind(IoDIRP(io));
a0d0e21e
LW		 4016 RETPUSHYES;
4017nope:
4018 if (!errno)
93189314 4019 SETERRNO(EBADF,RMS_ISI);
a0d0e21e
LW		 4020 RETPUSHUNDEF;
4021#else
cea2e8a9 4022 DIE(aTHX_ PL_no_dir_func, "rewinddir");
a0d0e21e
LW		 4023#endif
4024}
4025
4026PP(pp_closedir)
4027{
a0d0e21e 4028#if defined(Direntry_t) && defined(HAS_READDIR)
9cad6237 4029 dSP;
a0d0e21e
LW		 4030 GV *gv = (GV*)POPs;
4031 register IO *io = GvIOn(gv);
4032
4033 if (!io || !IoDIRP(io))
4034 goto nope;
4035
4036#ifdef VOID_CLOSEDIR
6ad3d225 4037 PerlDir_close(IoDIRP(io));
a0d0e21e 4038#else
6ad3d225 4039 if (PerlDir_close(IoDIRP(io)) < 0) {
748a9306 4040 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
a0d0e21e 4041 goto nope;
748a9306 4042 }
a0d0e21e
LW		 4043#endif
4044 IoDIRP(io) = 0;
4045
4046 RETPUSHYES;
4047nope:
4048 if (!errno)
93189314 4049 SETERRNO(EBADF,RMS_IFI);
a0d0e21e
LW		 4050 RETPUSHUNDEF;
4051#else
cea2e8a9 4052 DIE(aTHX_ PL_no_dir_func, "closedir");
a0d0e21e
LW		 4053#endif
4054}
4055
4056/* Process control. */
4057
4058PP(pp_fork)
4059{
44a8e56a 4060#ifdef HAS_FORK
39644a26 4061 dSP; dTARGET;
761237fe 4062 Pid_t childpid;
a0d0e21e
LW		 4063 GV *tmpgv;
4064
4065 EXTEND(SP, 1);
45bc9206 4066 PERL_FLUSHALL_FOR_CHILD;
52e18b1f 4067 childpid = PerlProc_fork();
a0d0e21e
LW		 4068 if (childpid < 0)
4069 RETSETUNDEF;
4070 if (!childpid) {
306196c3
MS		 4071 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4072 SvREADONLY_off(GvSV(tmpgv));
146174a9 4073 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
306196c3
MS		 4074 SvREADONLY_on(GvSV(tmpgv));
4075 }
4d76a344
RGS		 4076#ifdef THREADS_HAVE_PIDS
4077 PL_ppid = (IV)getppid();
4078#endif
3280af22 4079 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
a0d0e21e
LW		 4080 }
4081 PUSHi(childpid);
4082 RETURN;
4083#else
146174a9 4084# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
39644a26 4085 dSP; dTARGET;
146174a9
CB		 4086 Pid_t childpid;
4087
4088 EXTEND(SP, 1);
4089 PERL_FLUSHALL_FOR_CHILD;
4090 childpid = PerlProc_fork();
60fa28ff
GS		 4091 if (childpid == -1)
4092 RETSETUNDEF;
146174a9
CB		 4093 PUSHi(childpid);
4094 RETURN;
4095# else
0322a713 4096 DIE(aTHX_ PL_no_func, "fork");
146174a9 4097# endif
a0d0e21e
LW		 4098#endif
4099}
4100
4101PP(pp_wait)
4102{
301e8125 4103#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4104 dSP; dTARGET;
761237fe 4105 Pid_t childpid;
a0d0e21e 4106 int argflags;
a0d0e21e 4107
4ffa73a3
JH		 4108 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4109 childpid = wait4pid(-1, &argflags, 0);
4110 else {
4111 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4112 errno == EINTR) {
4113 PERL_ASYNC_CHECK();
4114 }
0a0ada86 4115 }
68a29c53
GS		 4116# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4117 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4118 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4119# else
f86702cc 4120 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
68a29c53 4121# endif
44a8e56a 4122 XPUSHi(childpid);
a0d0e21e
LW		 4123 RETURN;
4124#else
0322a713 4125 DIE(aTHX_ PL_no_func, "wait");
a0d0e21e
LW		 4126#endif
4127}
4128
4129PP(pp_waitpid)
4130{
301e8125 4131#if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
39644a26 4132 dSP; dTARGET;
2ec0bfb3
SG		 4133 Pid_t pid;
4134 Pid_t result;
a0d0e21e
LW		 4135 int optype;
4136 int argflags;
a0d0e21e 4137
a0d0e21e 4138 optype = POPi;
2ec0bfb3 4139 pid = TOPi;
4ffa73a3 4140 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
2ec0bfb3 4141 result = wait4pid(pid, &argflags, optype);
4ffa73a3 4142 else {
2ec0bfb3 4143 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4ffa73a3
JH		 4144 errno == EINTR) {
4145 PERL_ASYNC_CHECK();
4146 }
0a0ada86 4147 }
68a29c53
GS		 4148# if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4149 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
2ec0bfb3 4150 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
68a29c53 4151# else
2ec0bfb3 4152 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
68a29c53 4153# endif
2ec0bfb3 4154 SETi(result);
a0d0e21e
LW		 4155 RETURN;
4156#else
0322a713 4157 DIE(aTHX_ PL_no_func, "waitpid");
a0d0e21e
LW		 4158#endif
4159}
4160
4161PP(pp_system)
4162{
39644a26 4163 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e 4164 I32 value;
76ffd3b9 4165 int result;
a0d0e21e 4166
bbd7eb8a
RD		 4167 if (PL_tainting) {
4168 TAINT_ENV();
4169 while (++MARK <= SP) {
10516c54 4170 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4171 if (PL_tainted)
bbd7eb8a
RD		 4172 break;
4173 }
4174 MARK = ORIGMARK;
5a445156 4175 TAINT_PROPER("system");
a0d0e21e 4176 }
45bc9206 4177 PERL_FLUSHALL_FOR_CHILD;
273b0206 4178#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
d7e492a4 4179 {
eb160463
GS		 4180 Pid_t childpid;
4181 int pp[2];
27da23d5 4182 I32 did_pipes = 0;
eb160463
GS		 4183
4184 if (PerlProc_pipe(pp) >= 0)
4185 did_pipes = 1;
4186 while ((childpid = PerlProc_fork()) == -1) {
4187 if (errno != EAGAIN) {
4188 value = -1;
4189 SP = ORIGMARK;
4190 PUSHi(value);
4191 if (did_pipes) {
4192 PerlLIO_close(pp[0]);
4193 PerlLIO_close(pp[1]);
4194 }
4195 RETURN;
4196 }
4197 sleep(5);
4198 }
4199 if (childpid > 0) {
4200 Sigsave_t ihand,qhand; /* place to save signals during system() */
4201 int status;
4202
4203 if (did_pipes)
4204 PerlLIO_close(pp[1]);
64ca3a65 4205#ifndef PERL_MICRO
eb160463
GS		 4206 rsignal_save(SIGINT, SIG_IGN, &ihand);
4207 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
64ca3a65 4208#endif
eb160463
GS		 4209 do {
4210 result = wait4pid(childpid, &status, 0);
4211 } while (result == -1 && errno == EINTR);
64ca3a65 4212#ifndef PERL_MICRO
eb160463
GS		 4213 (void)rsignal_restore(SIGINT, &ihand);
4214 (void)rsignal_restore(SIGQUIT, &qhand);
4215#endif
4216 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4217 do_execfree(); /* free any memory child malloced on fork */
4218 SP = ORIGMARK;
4219 if (did_pipes) {
4220 int errkid;
4221 int n = 0, n1;
4222
4223 while (n < sizeof(int)) {
4224 n1 = PerlLIO_read(pp[0],
4225 (void*)(((char*)&errkid)+n),
4226 (sizeof(int)) - n);
4227 if (n1 <= 0)
4228 break;
4229 n += n1;
4230 }
4231 PerlLIO_close(pp[0]);
4232 if (n) { /* Error */
4233 if (n != sizeof(int))
4234 DIE(aTHX_ "panic: kid popen errno read");
4235 errno = errkid; /* Propagate errno from kid */
4236 STATUS_CURRENT = -1;
4237 }
4238 }
4239 PUSHi(STATUS_CURRENT);
4240 RETURN;
4241 }
4242 if (did_pipes) {
4243 PerlLIO_close(pp[0]);
d5a9bfb0 4244#if defined(HAS_FCNTL) && defined(F_SETFD)
eb160463 4245 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
d5a9bfb0 4246#endif
eb160463 4247 }
e0a1f643
JH		 4248 if (PL_op->op_flags & OPf_STACKED) {
4249 SV *really = *++MARK;
4250 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4251 }
4252 else if (SP - MARK != 1)
4253 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4254 else {
8c074e2a 4255 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
e0a1f643
JH		 4256 }
4257 PerlProc__exit(-1);
d5a9bfb0 4258 }
c3293030 4259#else /* ! FORK or VMS or OS/2 */
922b1888
GS		 4260 PL_statusvalue = 0;
4261 result = 0;
911d147d 4262 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e 4263 SV *really = *++MARK;
27da23d5 4264# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4265 value = (I32)do_aspawn(really, MARK, SP);
4266# else
c5be433b 4267 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
54725af6 4268# endif
a0d0e21e 4269 }
54725af6 4270 else if (SP - MARK != 1) {
27da23d5 4271# if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
54725af6
GS		 4272 value = (I32)do_aspawn(Nullsv, MARK, SP);
4273# else
c5be433b 4274 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
54725af6
GS		 4275# endif
4276 }
a0d0e21e 4277 else {
8c074e2a 4278 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4279 }
922b1888
GS		 4280 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4281 result = 1;
f86702cc 4282 STATUS_NATIVE_SET(value);
a0d0e21e
LW		 4283 do_execfree();
4284 SP = ORIGMARK;
922b1888 4285 PUSHi(result ? value : STATUS_CURRENT);
a0d0e21e
LW		 4286#endif /* !FORK or VMS */
4287 RETURN;
4288}
4289
4290PP(pp_exec)
4291{
39644a26 4292 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 4293 I32 value;
4294
bbd7eb8a
RD		 4295 if (PL_tainting) {
4296 TAINT_ENV();
4297 while (++MARK <= SP) {
10516c54 4298 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
5a445156 4299 if (PL_tainted)
bbd7eb8a
RD		 4300 break;
4301 }
4302 MARK = ORIGMARK;
5a445156 4303 TAINT_PROPER("exec");
bbd7eb8a 4304 }
45bc9206 4305 PERL_FLUSHALL_FOR_CHILD;
533c011a 4306 if (PL_op->op_flags & OPf_STACKED) {
a0d0e21e
LW		 4307 SV *really = *++MARK;
4308 value = (I32)do_aexec(really, MARK, SP);
4309 }
4310 else if (SP - MARK != 1)
4311#ifdef VMS
4312 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4313#else
092bebab
JH		 4314# ifdef __OPEN_VM
4315 {
c5be433b 4316 (void ) do_aspawn(Nullsv, MARK, SP);
092bebab
JH		 4317 value = 0;
4318 }
4319# else
a0d0e21e 4320 value = (I32)do_aexec(Nullsv, MARK, SP);
092bebab 4321# endif
a0d0e21e
LW		 4322#endif
4323 else {
a0d0e21e 4324#ifdef VMS
8c074e2a 4325 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
a0d0e21e 4326#else
092bebab 4327# ifdef __OPEN_VM
8c074e2a 4328 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab
JH		 4329 value = 0;
4330# else
8c074e2a 4331 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
092bebab 4332# endif
a0d0e21e
LW		 4333#endif
4334 }
146174a9 4335
a0d0e21e
LW		 4336 SP = ORIGMARK;
4337 PUSHi(value);
4338 RETURN;
4339}
4340
4341PP(pp_kill)
4342{
9cad6237 4343#ifdef HAS_KILL
39644a26 4344 dSP; dMARK; dTARGET;
a0d0e21e 4345 I32 value;
533c011a 4346 value = (I32)apply(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4347 SP = MARK;
4348 PUSHi(value);
4349 RETURN;
4350#else
0322a713 4351 DIE(aTHX_ PL_no_func, "kill");
a0d0e21e
LW		 4352#endif
4353}
4354
4355PP(pp_getppid)
4356{
4357#ifdef HAS_GETPPID
39644a26 4358 dSP; dTARGET;
4d76a344 4359# ifdef THREADS_HAVE_PIDS
e39f92a7
RGS		 4360 if (PL_ppid != 1 && getppid() == 1)
4361 /* maybe the parent process has died. Refresh ppid cache */
4362 PL_ppid = 1;
4d76a344
RGS		 4363 XPUSHi( PL_ppid );
4364# else
a0d0e21e 4365 XPUSHi( getppid() );
4d76a344 4366# endif
a0d0e21e
LW		 4367 RETURN;
4368#else
cea2e8a9 4369 DIE(aTHX_ PL_no_func, "getppid");
a0d0e21e
LW		 4370#endif
4371}
4372
4373PP(pp_getpgrp)
4374{
4375#ifdef HAS_GETPGRP
39644a26 4376 dSP; dTARGET;
d8a83dd3 4377 Pid_t pid;
9853a804 4378 Pid_t pgrp;
a0d0e21e
LW		 4379
4380 if (MAXARG < 1)
4381 pid = 0;
4382 else
4383 pid = SvIVx(POPs);
c3293030 4384#ifdef BSD_GETPGRP
9853a804 4385 pgrp = (I32)BSD_GETPGRP(pid);
a0d0e21e 4386#else
146174a9 4387 if (pid != 0 && pid != PerlProc_getpid())
cea2e8a9 4388 DIE(aTHX_ "POSIX getpgrp can't take an argument");
9853a804 4389 pgrp = getpgrp();
a0d0e21e 4390#endif
9853a804 4391 XPUSHi(pgrp);
a0d0e21e
LW		 4392 RETURN;
4393#else
cea2e8a9 4394 DIE(aTHX_ PL_no_func, "getpgrp()");
a0d0e21e
LW		 4395#endif
4396}
4397
4398PP(pp_setpgrp)
4399{
4400#ifdef HAS_SETPGRP
39644a26 4401 dSP; dTARGET;
d8a83dd3
JH		 4402 Pid_t pgrp;
4403 Pid_t pid;
a0d0e21e
LW		 4404 if (MAXARG < 2) {
4405 pgrp = 0;
4406 pid = 0;
4407 }
4408 else {
4409 pgrp = POPi;
4410 pid = TOPi;
4411 }
4412
4413 TAINT_PROPER("setpgrp");
c3293030
IZ		 4414#ifdef BSD_SETPGRP
4415 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
a0d0e21e 4416#else
146174a9
CB		 4417 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4418 || (pid != 0 && pid != PerlProc_getpid()))
4419 {
4420 DIE(aTHX_ "setpgrp can't take arguments");
4421 }
a0d0e21e
LW		 4422 SETi( setpgrp() >= 0 );
4423#endif /* USE_BSDPGRP */
4424 RETURN;
4425#else
cea2e8a9 4426 DIE(aTHX_ PL_no_func, "setpgrp()");
a0d0e21e
LW		 4427#endif
4428}
4429
4430PP(pp_getpriority)
4431{
a0d0e21e 4432#ifdef HAS_GETPRIORITY
9cad6237 4433 dSP; dTARGET;
d05c1ba0
JH		 4434 int who = POPi;
4435 int which = TOPi;
a0d0e21e
LW		 4436 SETi( getpriority(which, who) );
4437 RETURN;
4438#else
cea2e8a9 4439 DIE(aTHX_ PL_no_func, "getpriority()");
a0d0e21e
LW		 4440#endif
4441}
4442
4443PP(pp_setpriority)
4444{
a0d0e21e 4445#ifdef HAS_SETPRIORITY
9cad6237 4446 dSP; dTARGET;
d05c1ba0
JH		 4447 int niceval = POPi;
4448 int who = POPi;
4449 int which = TOPi;
a0d0e21e
LW		 4450 TAINT_PROPER("setpriority");
4451 SETi( setpriority(which, who, niceval) >= 0 );
4452 RETURN;
4453#else
cea2e8a9 4454 DIE(aTHX_ PL_no_func, "setpriority()");
a0d0e21e
LW		 4455#endif
4456}
4457
4458/* Time calls. */
4459
4460PP(pp_time)
4461{
39644a26 4462 dSP; dTARGET;
cbdc8872 4463#ifdef BIG_TIME
4464 XPUSHn( time(Null(Time_t*)) );
4465#else
a0d0e21e 4466 XPUSHi( time(Null(Time_t*)) );
cbdc8872 4467#endif
a0d0e21e
LW		 4468 RETURN;
4469}
4470
a0d0e21e
LW		 4471PP(pp_tms)
4472{
9cad6237 4473#ifdef HAS_TIMES
39644a26 4474 dSP;
a0d0e21e 4475 EXTEND(SP, 4);
a0d0e21e 4476#ifndef VMS
3280af22 4477 (void)PerlProc_times(&PL_timesbuf);
a0d0e21e 4478#else
6b88bc9c 4479 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
76e3520e
GS		 4480 /* struct tms, though same data */
4481 /* is returned. */
a0d0e21e
LW		 4482#endif
4483
5311654c 4484 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
a0d0e21e 4485 if (GIMME == G_ARRAY) {
5311654c
JH		 4486 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4487 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4488 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
a0d0e21e
LW		 4489 }
4490 RETURN;
9cad6237 4491#else
2f42fcb0
JH		 4492# ifdef PERL_MICRO
4493 dSP;
4494 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4495 EXTEND(SP, 4);
4496 if (GIMME == G_ARRAY) {
4497 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4498 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4499 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4500 }
4501 RETURN;
4502# else
9cad6237 4503 DIE(aTHX_ "times not implemented");
2f42fcb0 4504# endif
55497cff 4505#endif /* HAS_TIMES */
a0d0e21e
LW		 4506}
4507
4508PP(pp_localtime)
4509{
cea2e8a9 4510 return pp_gmtime();
a0d0e21e
LW		 4511}
4512
4513PP(pp_gmtime)
4514{
39644a26 4515 dSP;
a0d0e21e 4516 Time_t when;
bfed75c6 4517 const struct tm *tmbuf;
27da23d5
JH		 4518 static const char * const dayname[] =
4519 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4520 static const char * const monname[] =
4521 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4522 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
a0d0e21e
LW		 4523
4524 if (MAXARG < 1)
4525 (void)time(&when);
4526 else
cbdc8872 4527#ifdef BIG_TIME
4528 when = (Time_t)SvNVx(POPs);
4529#else
a0d0e21e 4530 when = (Time_t)SvIVx(POPs);
cbdc8872 4531#endif
a0d0e21e 4532
533c011a 4533 if (PL_op->op_type == OP_LOCALTIME)
a0d0e21e
LW		 4534 tmbuf = localtime(&when);
4535 else
4536 tmbuf = gmtime(&when);
4537
a0d0e21e 4538 if (GIMME != G_ARRAY) {
46fc3d4c 4539 SV *tsv;
9a5ff6d9
AB		 4540 EXTEND(SP, 1);
4541 EXTEND_MORTAL(1);
a0d0e21e
LW		 4542 if (!tmbuf)
4543 RETPUSHUNDEF;
be28567c 4544 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
f5a29b03
RB		 4545 dayname[tmbuf->tm_wday],
4546 monname[tmbuf->tm_mon],
be28567c
GS		 4547 tmbuf->tm_mday,
4548 tmbuf->tm_hour,
4549 tmbuf->tm_min,
4550 tmbuf->tm_sec,
4551 tmbuf->tm_year + 1900);
46fc3d4c 4552 PUSHs(sv_2mortal(tsv));
a0d0e21e
LW		 4553 }
4554 else if (tmbuf) {
9a5ff6d9
AB		 4555 EXTEND(SP, 9);
4556 EXTEND_MORTAL(9);
4557 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
c6419e06
JH		 4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4560 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4561 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4562 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4563 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4564 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
a0d0e21e
LW		 4566 }
4567 RETURN;
4568}
4569
4570PP(pp_alarm)
4571{
9cad6237 4572#ifdef HAS_ALARM
39644a26 4573 dSP; dTARGET;
a0d0e21e 4574 int anum;
a0d0e21e
LW		 4575 anum = POPi;
4576 anum = alarm((unsigned int)anum);
4577 EXTEND(SP, 1);
4578 if (anum < 0)
4579 RETPUSHUNDEF;
c6419e06 4580 PUSHi(anum);
a0d0e21e
LW		 4581 RETURN;
4582#else
0322a713 4583 DIE(aTHX_ PL_no_func, "alarm");
a0d0e21e
LW		 4584#endif
4585}
4586
4587PP(pp_sleep)
4588{
39644a26 4589 dSP; dTARGET;
a0d0e21e
LW		 4590 I32 duration;
4591 Time_t lasttime;
4592 Time_t when;
4593
4594 (void)time(&lasttime);
4595 if (MAXARG < 1)
76e3520e 4596 PerlProc_pause();
a0d0e21e
LW		 4597 else {
4598 duration = POPi;
76e3520e 4599 PerlProc_sleep((unsigned int)duration);
a0d0e21e
LW		 4600 }
4601 (void)time(&when);
4602 XPUSHi(when - lasttime);
4603 RETURN;
4604}
4605
4606/* Shared memory. */
4607
4608PP(pp_shmget)
4609{
cea2e8a9 4610 return pp_semget();
a0d0e21e
LW		 4611}
4612
4613PP(pp_shmctl)
4614{
cea2e8a9 4615 return pp_semctl();
a0d0e21e
LW		 4616}
4617
4618PP(pp_shmread)
4619{
cea2e8a9 4620 return pp_shmwrite();
a0d0e21e
LW		 4621}
4622
4623PP(pp_shmwrite)
4624{
4625#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4626 dSP; dMARK; dTARGET;
533c011a 4627 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
a0d0e21e
LW		 4628 SP = MARK;
4629 PUSHi(value);
4630 RETURN;
4631#else
cea2e8a9 4632 return pp_semget();
a0d0e21e
LW		 4633#endif
4634}
4635
4636/* Message passing. */
4637
4638PP(pp_msgget)
4639{
cea2e8a9 4640 return pp_semget();
a0d0e21e
LW		 4641}
4642
4643PP(pp_msgctl)
4644{
cea2e8a9 4645 return pp_semctl();
a0d0e21e
LW		 4646}
4647
4648PP(pp_msgsnd)
4649{
4650#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4651 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4652 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4653 SP = MARK;
4654 PUSHi(value);
4655 RETURN;
4656#else
cea2e8a9 4657 return pp_semget();
a0d0e21e
LW		 4658#endif
4659}
4660
4661PP(pp_msgrcv)
4662{
4663#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4664 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4665 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4666 SP = MARK;
4667 PUSHi(value);
4668 RETURN;
4669#else
cea2e8a9 4670 return pp_semget();
a0d0e21e
LW		 4671#endif
4672}
4673
4674/* Semaphores. */
4675
4676PP(pp_semget)
4677{
4678#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4679 dSP; dMARK; dTARGET;
533c011a 4680 int anum = do_ipcget(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4681 SP = MARK;
4682 if (anum == -1)
4683 RETPUSHUNDEF;
4684 PUSHi(anum);
4685 RETURN;
4686#else
cea2e8a9 4687 DIE(aTHX_ "System V IPC is not implemented on this machine");
a0d0e21e
LW		 4688#endif
4689}
4690
4691PP(pp_semctl)
4692{
4693#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4694 dSP; dMARK; dTARGET;
533c011a 4695 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
a0d0e21e
LW		 4696 SP = MARK;
4697 if (anum == -1)
4698 RETSETUNDEF;
4699 if (anum != 0) {
4700 PUSHi(anum);
4701 }
4702 else {
8903cb82 4703 PUSHp(zero_but_true, ZBTLEN);
a0d0e21e
LW		 4704 }
4705 RETURN;
4706#else
cea2e8a9 4707 return pp_semget();
a0d0e21e
LW		 4708#endif
4709}
4710
4711PP(pp_semop)
4712{
4713#if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
39644a26 4714 dSP; dMARK; dTARGET;
a0d0e21e
LW		 4715 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4716 SP = MARK;
4717 PUSHi(value);
4718 RETURN;
4719#else
cea2e8a9 4720 return pp_semget();
a0d0e21e
LW		 4721#endif
4722}
4723
4724/* Get system info. */
4725
4726PP(pp_ghbyname)
4727{
693762b4 4728#ifdef HAS_GETHOSTBYNAME
cea2e8a9 4729 return pp_ghostent();
a0d0e21e 4730#else
cea2e8a9 4731 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
a0d0e21e
LW		 4732#endif
4733}
4734
4735PP(pp_ghbyaddr)
4736{
693762b4 4737#ifdef HAS_GETHOSTBYADDR
cea2e8a9 4738 return pp_ghostent();
a0d0e21e 4739#else
cea2e8a9 4740 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
a0d0e21e
LW		 4741#endif
4742}
4743
4744PP(pp_ghostent)
4745{
693762b4 4746#if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
9cad6237 4747 dSP;
533c011a 4748 I32 which = PL_op->op_type;
a0d0e21e
LW		 4749 register char **elem;
4750 register SV *sv;
dc45a647 4751#ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4752 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4753 struct hostent *gethostbyname(Netdb_name_t);
4754 struct hostent *gethostent(void);
a0d0e21e
LW		 4755#endif
4756 struct hostent *hent;
4757 unsigned long len;
4758
4759 EXTEND(SP, 10);
edd309b7 4760 if (which == OP_GHBYNAME) {
dc45a647 4761#ifdef HAS_GETHOSTBYNAME
edd309b7
JH		 4762 char* name = POPpbytex;
4763 hent = PerlSock_gethostbyname(name);
dc45a647 4764#else
cea2e8a9 4765 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
dc45a647 4766#endif
edd309b7 4767 }
a0d0e21e 4768 else if (which == OP_GHBYADDR) {
dc45a647 4769#ifdef HAS_GETHOSTBYADDR
a0d0e21e 4770 int addrtype = POPi;
748a9306 4771 SV *addrsv = POPs;
a0d0e21e 4772 STRLEN addrlen;
595ae481 4773 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
a0d0e21e 4774
4599a1de 4775 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
dc45a647 4776#else
cea2e8a9 4777 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
dc45a647 4778#endif
a0d0e21e
LW		 4779 }
4780 else
4781#ifdef HAS_GETHOSTENT
6ad3d225 4782 hent = PerlSock_gethostent();
a0d0e21e 4783#else
cea2e8a9 4784 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4785#endif
4786
4787#ifdef HOST_NOT_FOUND
10bc17b6
JH		 4788 if (!hent) {
4789#ifdef USE_REENTRANT_API
4790# ifdef USE_GETHOSTENT_ERRNO
4791 h_errno = PL_reentrant_buffer->_gethostent_errno;
4792# endif
4793#endif
4794 STATUS_NATIVE_SET(h_errno);
4795 }
a0d0e21e
LW		 4796#endif
4797
4798 if (GIMME != G_ARRAY) {
4799 PUSHs(sv = sv_newmortal());
4800 if (hent) {
4801 if (which == OP_GHBYNAME) {
fd0af264 4802 if (hent->h_addr)
4803 sv_setpvn(sv, hent->h_addr, hent->h_length);
a0d0e21e
LW		 4804 }
4805 else
4806 sv_setpv(sv, (char*)hent->h_name);
4807 }
4808 RETURN;
4809 }
4810
4811 if (hent) {
3280af22 4812 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4813 sv_setpv(sv, (char*)hent->h_name);
3280af22 4814 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4815 for (elem = hent->h_aliases; elem && *elem; elem++) {
4816 sv_catpv(sv, *elem);
4817 if (elem[1])
4818 sv_catpvn(sv, " ", 1);
4819 }
3280af22 4820 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4821 sv_setiv(sv, (IV)hent->h_addrtype);
3280af22 4822 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4823 len = hent->h_length;
1e422769 4824 sv_setiv(sv, (IV)len);
a0d0e21e
LW		 4825#ifdef h_addr
4826 for (elem = hent->h_addr_list; elem && *elem; elem++) {
3280af22 4827 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 4828 sv_setpvn(sv, *elem, len);
4829 }
4830#else
6b88bc9c 4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
fd0af264 4832 if (hent->h_addr)
4833 sv_setpvn(sv, hent->h_addr, len);
a0d0e21e
LW		 4834#endif /* h_addr */
4835 }
4836 RETURN;
4837#else
cea2e8a9 4838 DIE(aTHX_ PL_no_sock_func, "gethostent");
a0d0e21e
LW		 4839#endif
4840}
4841
4842PP(pp_gnbyname)
4843{
693762b4 4844#ifdef HAS_GETNETBYNAME
cea2e8a9 4845 return pp_gnetent();
a0d0e21e 4846#else
cea2e8a9 4847 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
a0d0e21e
LW		 4848#endif
4849}
4850
4851PP(pp_gnbyaddr)
4852{
693762b4 4853#ifdef HAS_GETNETBYADDR
cea2e8a9 4854 return pp_gnetent();
a0d0e21e 4855#else
cea2e8a9 4856 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
a0d0e21e
LW		 4857#endif
4858}
4859
4860PP(pp_gnetent)
4861{
693762b4 4862#if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
9cad6237 4863 dSP;
533c011a 4864 I32 which = PL_op->op_type;
a0d0e21e
LW		 4865 register char **elem;
4866 register SV *sv;
dc45a647 4867#ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4868 struct netent *getnetbyaddr(Netdb_net_t, int);
4869 struct netent *getnetbyname(Netdb_name_t);
4870 struct netent *getnetent(void);
8ac85365 4871#endif
a0d0e21e
LW		 4872 struct netent *nent;
4873
edd309b7 4874 if (which == OP_GNBYNAME){
dc45a647 4875#ifdef HAS_GETNETBYNAME
edd309b7
JH		 4876 char *name = POPpbytex;
4877 nent = PerlSock_getnetbyname(name);
dc45a647 4878#else
cea2e8a9 4879 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
dc45a647 4880#endif
edd309b7 4881 }
a0d0e21e 4882 else if (which == OP_GNBYADDR) {
dc45a647 4883#ifdef HAS_GETNETBYADDR
a0d0e21e 4884 int addrtype = POPi;
3bb7c1b4 4885 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
76e3520e 4886 nent = PerlSock_getnetbyaddr(addr, addrtype);
dc45a647 4887#else
cea2e8a9 4888 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
dc45a647 4889#endif
a0d0e21e
LW		 4890 }
4891 else
dc45a647 4892#ifdef HAS_GETNETENT
76e3520e 4893 nent = PerlSock_getnetent();
dc45a647 4894#else
cea2e8a9 4895 DIE(aTHX_ PL_no_sock_func, "getnetent");
dc45a647 4896#endif
a0d0e21e 4897
10bc17b6
JH		 4898#ifdef HOST_NOT_FOUND
4899 if (!nent) {
4900#ifdef USE_REENTRANT_API
4901# ifdef USE_GETNETENT_ERRNO
4902 h_errno = PL_reentrant_buffer->_getnetent_errno;
4903# endif
4904#endif
4905 STATUS_NATIVE_SET(h_errno);
4906 }
4907#endif
4908
a0d0e21e
LW		 4909 EXTEND(SP, 4);
4910 if (GIMME != G_ARRAY) {
4911 PUSHs(sv = sv_newmortal());
4912 if (nent) {
4913 if (which == OP_GNBYNAME)
1e422769 4914 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4915 else
4916 sv_setpv(sv, nent->n_name);
4917 }
4918 RETURN;
4919 }
4920
4921 if (nent) {
3280af22 4922 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 4923 sv_setpv(sv, nent->n_name);
3280af22 4924 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 4925 for (elem = nent->n_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 4926 sv_catpv(sv, *elem);
4927 if (elem[1])
4928 sv_catpvn(sv, " ", 1);
4929 }
3280af22 4930 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4931 sv_setiv(sv, (IV)nent->n_addrtype);
3280af22 4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 4933 sv_setiv(sv, (IV)nent->n_net);
a0d0e21e
LW		 4934 }
4935
4936 RETURN;
4937#else
cea2e8a9 4938 DIE(aTHX_ PL_no_sock_func, "getnetent");
a0d0e21e
LW		 4939#endif
4940}
4941
4942PP(pp_gpbyname)
4943{
693762b4 4944#ifdef HAS_GETPROTOBYNAME
cea2e8a9 4945 return pp_gprotoent();
a0d0e21e 4946#else
cea2e8a9 4947 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
a0d0e21e
LW		 4948#endif
4949}
4950
4951PP(pp_gpbynumber)
4952{
693762b4 4953#ifdef HAS_GETPROTOBYNUMBER
cea2e8a9 4954 return pp_gprotoent();
a0d0e21e 4955#else
cea2e8a9 4956 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
a0d0e21e
LW		 4957#endif
4958}
4959
4960PP(pp_gprotoent)
4961{
693762b4 4962#if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
9cad6237 4963 dSP;
533c011a 4964 I32 which = PL_op->op_type;
a0d0e21e 4965 register char **elem;
301e8125 4966 register SV *sv;
dc45a647 4967#ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 4968 struct protoent *getprotobyname(Netdb_name_t);
4969 struct protoent *getprotobynumber(int);
4970 struct protoent *getprotoent(void);
8ac85365 4971#endif
a0d0e21e
LW		 4972 struct protoent *pent;
4973
edd309b7 4974 if (which == OP_GPBYNAME) {
e5c9fcd0 4975#ifdef HAS_GETPROTOBYNAME
edd309b7
JH		 4976 char* name = POPpbytex;
4977 pent = PerlSock_getprotobyname(name);
e5c9fcd0 4978#else
cea2e8a9 4979 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
e5c9fcd0 4980#endif
edd309b7
JH		 4981 }
4982 else if (which == OP_GPBYNUMBER) {
e5c9fcd0 4983#ifdef HAS_GETPROTOBYNUMBER
edd309b7
JH		 4984 int number = POPi;
4985 pent = PerlSock_getprotobynumber(number);
e5c9fcd0 4986#else
edd309b7 4987 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
e5c9fcd0 4988#endif
edd309b7 4989 }
a0d0e21e 4990 else
e5c9fcd0 4991#ifdef HAS_GETPROTOENT
6ad3d225 4992 pent = PerlSock_getprotoent();
e5c9fcd0 4993#else
cea2e8a9 4994 DIE(aTHX_ PL_no_sock_func, "getprotoent");
e5c9fcd0 4995#endif
a0d0e21e
LW		 4996
4997 EXTEND(SP, 3);
4998 if (GIMME != G_ARRAY) {
4999 PUSHs(sv = sv_newmortal());
5000 if (pent) {
5001 if (which == OP_GPBYNAME)
1e422769 5002 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5003 else
5004 sv_setpv(sv, pent->p_name);
5005 }
5006 RETURN;
5007 }
5008
5009 if (pent) {
3280af22 5010 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5011 sv_setpv(sv, pent->p_name);
3280af22 5012 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5013 for (elem = pent->p_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5014 sv_catpv(sv, *elem);
5015 if (elem[1])
5016 sv_catpvn(sv, " ", 1);
5017 }
3280af22 5018 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5019 sv_setiv(sv, (IV)pent->p_proto);
a0d0e21e
LW		 5020 }
5021
5022 RETURN;
5023#else
cea2e8a9 5024 DIE(aTHX_ PL_no_sock_func, "getprotoent");
a0d0e21e
LW		 5025#endif
5026}
5027
5028PP(pp_gsbyname)
5029{
9ec75305 5030#ifdef HAS_GETSERVBYNAME
cea2e8a9 5031 return pp_gservent();
a0d0e21e 5032#else
cea2e8a9 5033 DIE(aTHX_ PL_no_sock_func, "getservbyname");
a0d0e21e
LW		 5034#endif
5035}
5036
5037PP(pp_gsbyport)
5038{
9ec75305 5039#ifdef HAS_GETSERVBYPORT
cea2e8a9 5040 return pp_gservent();
a0d0e21e 5041#else
cea2e8a9 5042 DIE(aTHX_ PL_no_sock_func, "getservbyport");
a0d0e21e
LW		 5043#endif
5044}
5045
5046PP(pp_gservent)
5047{
693762b4 5048#if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
9cad6237 5049 dSP;
533c011a 5050 I32 which = PL_op->op_type;
a0d0e21e
LW		 5051 register char **elem;
5052 register SV *sv;
dc45a647 5053#ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
1d88b533
JH		 5054 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5055 struct servent *getservbyport(int, Netdb_name_t);
5056 struct servent *getservent(void);
8ac85365 5057#endif
a0d0e21e
LW		 5058 struct servent *sent;
5059
5060 if (which == OP_GSBYNAME) {
dc45a647 5061#ifdef HAS_GETSERVBYNAME
42e0c139
AP		 5062 char *proto = POPpbytex;
5063 char *name = POPpbytex;
a0d0e21e
LW		 5064
5065 if (proto && !*proto)
5066 proto = Nullch;
5067
6ad3d225 5068 sent = PerlSock_getservbyname(name, proto);
dc45a647 5069#else
cea2e8a9 5070 DIE(aTHX_ PL_no_sock_func, "getservbyname");
dc45a647 5071#endif
a0d0e21e
LW		 5072 }
5073 else if (which == OP_GSBYPORT) {
dc45a647 5074#ifdef HAS_GETSERVBYPORT
42e0c139 5075 char *proto = POPpbytex;
eb160463 5076 unsigned short port = (unsigned short)POPu;
a0d0e21e 5077
2b872cca
SR		 5078 if (proto && !*proto)
5079 proto = Nullch;
5080
36477c24 5081#ifdef HAS_HTONS
6ad3d225 5082 port = PerlSock_htons(port);
36477c24 5083#endif
6ad3d225 5084 sent = PerlSock_getservbyport(port, proto);
dc45a647 5085#else
cea2e8a9 5086 DIE(aTHX_ PL_no_sock_func, "getservbyport");
dc45a647 5087#endif
a0d0e21e
LW		 5088 }
5089 else
e5c9fcd0 5090#ifdef HAS_GETSERVENT
6ad3d225 5091 sent = PerlSock_getservent();
e5c9fcd0 5092#else
cea2e8a9 5093 DIE(aTHX_ PL_no_sock_func, "getservent");
e5c9fcd0 5094#endif
a0d0e21e
LW		 5095
5096 EXTEND(SP, 4);
5097 if (GIMME != G_ARRAY) {
5098 PUSHs(sv = sv_newmortal());
5099 if (sent) {
5100 if (which == OP_GSBYNAME) {
5101#ifdef HAS_NTOHS
6ad3d225 5102 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5103#else
1e422769 5104 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e
LW		 5105#endif
5106 }
5107 else
5108 sv_setpv(sv, sent->s_name);
5109 }
5110 RETURN;
5111 }
5112
5113 if (sent) {
3280af22 5114 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5115 sv_setpv(sv, sent->s_name);
3280af22 5116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
c90c0ff4 5117 for (elem = sent->s_aliases; elem && *elem; elem++) {
a0d0e21e
LW		 5118 sv_catpv(sv, *elem);
5119 if (elem[1])
5120 sv_catpvn(sv, " ", 1);
5121 }
3280af22 5122 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5123#ifdef HAS_NTOHS
76e3520e 5124 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
a0d0e21e 5125#else
1e422769 5126 sv_setiv(sv, (IV)(sent->s_port));
a0d0e21e 5127#endif
3280af22 5128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e
LW		 5129 sv_setpv(sv, sent->s_proto);
5130 }
5131
5132 RETURN;
5133#else
cea2e8a9 5134 DIE(aTHX_ PL_no_sock_func, "getservent");
a0d0e21e
LW		 5135#endif
5136}
5137
5138PP(pp_shostent)
5139{
693762b4 5140#ifdef HAS_SETHOSTENT
9cad6237 5141 dSP;
76e3520e 5142 PerlSock_sethostent(TOPi);
a0d0e21e
LW		 5143 RETSETYES;
5144#else
cea2e8a9 5145 DIE(aTHX_ PL_no_sock_func, "sethostent");
a0d0e21e
LW		 5146#endif
5147}
5148
5149PP(pp_snetent)
5150{
693762b4 5151#ifdef HAS_SETNETENT
9cad6237 5152 dSP;
76e3520e 5153 PerlSock_setnetent(TOPi);
a0d0e21e
LW		 5154 RETSETYES;
5155#else
cea2e8a9 5156 DIE(aTHX_ PL_no_sock_func, "setnetent");
a0d0e21e
LW		 5157#endif
5158}
5159
5160PP(pp_sprotoent)
5161{
693762b4 5162#ifdef HAS_SETPROTOENT
9cad6237 5163 dSP;
76e3520e 5164 PerlSock_setprotoent(TOPi);
a0d0e21e
LW		 5165 RETSETYES;
5166#else
cea2e8a9 5167 DIE(aTHX_ PL_no_sock_func, "setprotoent");
a0d0e21e
LW		 5168#endif
5169}
5170
5171PP(pp_sservent)
5172{
693762b4 5173#ifdef HAS_SETSERVENT
9cad6237 5174 dSP;
76e3520e 5175 PerlSock_setservent(TOPi);
a0d0e21e
LW		 5176 RETSETYES;
5177#else
cea2e8a9 5178 DIE(aTHX_ PL_no_sock_func, "setservent");
a0d0e21e
LW		 5179#endif
5180}
5181
5182PP(pp_ehostent)
5183{
693762b4 5184#ifdef HAS_ENDHOSTENT
9cad6237 5185 dSP;
76e3520e 5186 PerlSock_endhostent();
924508f0 5187 EXTEND(SP,1);
a0d0e21e
LW		 5188 RETPUSHYES;
5189#else
cea2e8a9 5190 DIE(aTHX_ PL_no_sock_func, "endhostent");
a0d0e21e
LW		 5191#endif
5192}
5193
5194PP(pp_enetent)
5195{
693762b4 5196#ifdef HAS_ENDNETENT
9cad6237 5197 dSP;
76e3520e 5198 PerlSock_endnetent();
924508f0 5199 EXTEND(SP,1);
a0d0e21e
LW		 5200 RETPUSHYES;
5201#else
cea2e8a9 5202 DIE(aTHX_ PL_no_sock_func, "endnetent");
a0d0e21e
LW		 5203#endif
5204}
5205
5206PP(pp_eprotoent)
5207{
693762b4 5208#ifdef HAS_ENDPROTOENT
9cad6237 5209 dSP;
76e3520e 5210 PerlSock_endprotoent();
924508f0 5211 EXTEND(SP,1);
a0d0e21e
LW		 5212 RETPUSHYES;
5213#else
cea2e8a9 5214 DIE(aTHX_ PL_no_sock_func, "endprotoent");
a0d0e21e
LW		 5215#endif
5216}
5217
5218PP(pp_eservent)
5219{
693762b4 5220#ifdef HAS_ENDSERVENT
9cad6237 5221 dSP;
76e3520e 5222 PerlSock_endservent();
924508f0 5223 EXTEND(SP,1);
a0d0e21e
LW		 5224 RETPUSHYES;
5225#else
cea2e8a9 5226 DIE(aTHX_ PL_no_sock_func, "endservent");
a0d0e21e
LW		 5227#endif
5228}
5229
5230PP(pp_gpwnam)
5231{
5232#ifdef HAS_PASSWD
cea2e8a9 5233 return pp_gpwent();
a0d0e21e 5234#else
cea2e8a9 5235 DIE(aTHX_ PL_no_func, "getpwnam");
a0d0e21e
LW		 5236#endif
5237}
5238
5239PP(pp_gpwuid)
5240{
5241#ifdef HAS_PASSWD
cea2e8a9 5242 return pp_gpwent();
a0d0e21e 5243#else
cea2e8a9 5244 DIE(aTHX_ PL_no_func, "getpwuid");
a0d0e21e
LW		 5245#endif
5246}
5247
5248PP(pp_gpwent)
5249{
0994c4d0 5250#ifdef HAS_PASSWD
9cad6237 5251 dSP;
533c011a 5252 I32 which = PL_op->op_type;
a0d0e21e 5253 register SV *sv;
e3aefe8d 5254 struct passwd *pwent = NULL;
301e8125 5255 /*
bcf53261
JH		 5256 * We currently support only the SysV getsp* shadow password interface.
5257 * The interface is declared in <shadow.h> and often one needs to link
5258 * with -lsecurity or some such.
5259 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5260 * (and SCO?)
5261 *
5262 * AIX getpwnam() is clever enough to return the encrypted password
5263 * only if the caller (euid?) is root.
5264 *
e549f1c5 5265 * There are at least three other shadow password APIs. Many platforms
bcf53261
JH		 5266 * seem to contain more than one interface for accessing the shadow
5267 * password databases, possibly for compatibility reasons.
3813c136 5268 * The getsp*() is by far he simplest one, the other two interfaces
bcf53261
JH		 5269 * are much more complicated, but also very similar to each other.
5270 *
5271 * <sys/types.h>
5272 * <sys/security.h>
5273 * <prot.h>
5274 * struct pr_passwd *getprpw*();
5275 * The password is in
3813c136
JH		 5276 * char getprpw*(...).ufld.fd_encrypt[]
5277 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
bcf53261
JH		 5278 *
5279 * <sys/types.h>
5280 * <sys/security.h>
5281 * <prot.h>
5282 * struct es_passwd *getespw*();
5283 * The password is in
5284 * char *(getespw*(...).ufld.fd_encrypt)
3813c136 5285 * Mention HAS_GETESPWNAM here so that Configure probes for it.
bcf53261 5286 *
e1920a95 5287 * <userpw.h> (AIX)
e549f1c5
JH		 5288 * struct userpw *getuserpw();
5289 * The password is in
5290 * char *(getuserpw(...)).spw_upw_passwd
5291 * (but the de facto standard getpwnam() should work okay)
5292 *
3813c136 5293 * Mention I_PROT here so that Configure probes for it.
bcf53261
JH		 5294 *
5295 * In HP-UX for getprpw*() the manual page claims that one should include
5296 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5297 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5298 * and pp_sys.c already includes <shadow.h> if there is such.
3813c136
JH		 5299 *
5300 * Note that <sys/security.h> is already probed for, but currently
5301 * it is only included in special cases.
301e8125 5302 *
bcf53261
JH		 5303 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5304 * be preferred interface, even though also the getprpw*() interface
5305 * is available) one needs to link with -lsecurity -ldb -laud -lm.
3813c136
JH		 5306 * One also needs to call set_auth_parameters() in main() before
5307 * doing anything else, whether one is using getespw*() or getprpw*().
5308 *
5309 * Note that accessing the shadow databases can be magnitudes
5310 * slower than accessing the standard databases.
bcf53261
JH		 5311 *
5312 * --jhi
5313 */
a0d0e21e 5314
9e5f0c48
JH		 5315# if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5316 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5317 * the pw_comment is left uninitialized. */
5318 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5319# endif
5320
e3aefe8d
JH		 5321 switch (which) {
5322 case OP_GPWNAM:
edd309b7
JH		 5323 {
5324 char* name = POPpbytex;
5325 pwent = getpwnam(name);
5326 }
5327 break;
e3aefe8d 5328 case OP_GPWUID:
edd309b7
JH		 5329 {
5330 Uid_t uid = POPi;
5331 pwent = getpwuid(uid);
5332 }
e3aefe8d
JH		 5333 break;
5334 case OP_GPWENT:
1883634f 5335# ifdef HAS_GETPWENT
e3aefe8d 5336 pwent = getpwent();
faea9016
IRC		 5337#ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5338 if (pwent) pwent = getpwnam(pwent->pw_name);
5339#endif
1883634f 5340# else
a45d1c96 5341 DIE(aTHX_ PL_no_func, "getpwent");
1883634f 5342# endif
e3aefe8d
JH		 5343 break;
5344 }
8c0bfa08 5345
a0d0e21e
LW		 5346 EXTEND(SP, 10);
5347 if (GIMME != G_ARRAY) {
5348 PUSHs(sv = sv_newmortal());
5349 if (pwent) {
5350 if (which == OP_GPWNAM)
1883634f 5351# if Uid_t_sign <= 0
1e422769 5352 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5353# else
23dcd6c8 5354 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5355# endif
a0d0e21e
LW		 5356 else
5357 sv_setpv(sv, pwent->pw_name);
5358 }
5359 RETURN;
5360 }
5361
5362 if (pwent) {
3280af22 5363 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5364 sv_setpv(sv, pwent->pw_name);
6ee623d5 5365
3280af22 5366 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3813c136
JH		 5367 SvPOK_off(sv);
5368 /* If we have getspnam(), we try to dig up the shadow
5369 * password. If we are underprivileged, the shadow
5370 * interface will set the errno to EACCES or similar,
5371 * and return a null pointer. If this happens, we will
5372 * use the dummy password (usually "*" or "x") from the
5373 * standard password database.
5374 *
5375 * In theory we could skip the shadow call completely
5376 * if euid != 0 but in practice we cannot know which
5377 * security measures are guarding the shadow databases
5378 * on a random platform.
5379 *
5380 * Resist the urge to use additional shadow interfaces.
5381 * Divert the urge to writing an extension instead.
5382 *
5383 * --jhi */
e549f1c5
JH		 5384 /* Some AIX setups falsely(?) detect some getspnam(), which
5385 * has a different API than the Solaris/IRIX one. */
5386# if defined(HAS_GETSPNAM) && !defined(_AIX)
3813c136
JH		 5387 {
5388 struct spwd *spwent;
5389 int saverrno; /* Save and restore errno so that
5390 * underprivileged attempts seem
5391 * to have never made the unsccessful
5392 * attempt to retrieve the shadow password. */
5393
5394 saverrno = errno;
5395 spwent = getspnam(pwent->pw_name);
5396 errno = saverrno;
5397 if (spwent && spwent->sp_pwdp)
5398 sv_setpv(sv, spwent->sp_pwdp);
5399 }
f1066039 5400# endif
e020c87d 5401# ifdef PWPASSWD
3813c136
JH		 5402 if (!SvPOK(sv)) /* Use the standard password, then. */
5403 sv_setpv(sv, pwent->pw_passwd);
e020c87d 5404# endif
3813c136 5405
1883634f 5406# ifndef INCOMPLETE_TAINTS
3813c136
JH		 5407 /* passwd is tainted because user himself can diddle with it.
5408 * admittedly not much and in a very limited way, but nevertheless. */
2959b6e3 5409 SvTAINTED_on(sv);
1883634f 5410# endif
6ee623d5 5411
3280af22 5412 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5413# if Uid_t_sign <= 0
1e422769 5414 sv_setiv(sv, (IV)pwent->pw_uid);
1883634f 5415# else
23dcd6c8 5416 sv_setuv(sv, (UV)pwent->pw_uid);
1883634f 5417# endif
6ee623d5 5418
3280af22 5419 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5420# if Uid_t_sign <= 0
1e422769 5421 sv_setiv(sv, (IV)pwent->pw_gid);
1883634f 5422# else
23dcd6c8 5423 sv_setuv(sv, (UV)pwent->pw_gid);
1883634f 5424# endif
3813c136
JH		 5425 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5426 * because of the poor interface of the Perl getpw*(),
5427 * not because there's some standard/convention saying so.
5428 * A better interface would have been to return a hash,
5429 * but we are accursed by our history, alas. --jhi. */
3280af22 5430 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5431# ifdef PWCHANGE
1e422769 5432 sv_setiv(sv, (IV)pwent->pw_change);
6ee623d5 5433# else
1883634f
JH		 5434# ifdef PWQUOTA
5435 sv_setiv(sv, (IV)pwent->pw_quota);
5436# else
a1757be1 5437# ifdef PWAGE
a0d0e21e 5438 sv_setpv(sv, pwent->pw_age);
a1757be1 5439# endif
6ee623d5
GS		 5440# endif
5441# endif
6ee623d5 5442
3813c136
JH		 5443 /* pw_class and pw_comment are mutually exclusive--.
5444 * see the above note for pw_change, pw_quota, and pw_age. */
3280af22 5445 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5446# ifdef PWCLASS
a0d0e21e 5447 sv_setpv(sv, pwent->pw_class);
1883634f
JH		 5448# else
5449# ifdef PWCOMMENT
a0d0e21e 5450 sv_setpv(sv, pwent->pw_comment);
1883634f 5451# endif
6ee623d5 5452# endif
6ee623d5 5453
3280af22 5454 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1883634f 5455# ifdef PWGECOS
a0d0e21e 5456 sv_setpv(sv, pwent->pw_gecos);
1883634f
JH		 5457# endif
5458# ifndef INCOMPLETE_TAINTS
d2719217 5459 /* pw_gecos is tainted because user himself can diddle with it. */
fb73857a 5460 SvTAINTED_on(sv);
1883634f 5461# endif
6ee623d5 5462
3280af22 5463 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5464 sv_setpv(sv, pwent->pw_dir);
6ee623d5 5465
3280af22 5466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5467 sv_setpv(sv, pwent->pw_shell);
1883634f 5468# ifndef INCOMPLETE_TAINTS
4602f195
JH		 5469 /* pw_shell is tainted because user himself can diddle with it. */
5470 SvTAINTED_on(sv);
1883634f 5471# endif
6ee623d5 5472
1883634f 5473# ifdef PWEXPIRE
6b88bc9c 5474 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5475 sv_setiv(sv, (IV)pwent->pw_expire);
1883634f 5476# endif
a0d0e21e
LW		 5477 }
5478 RETURN;
5479#else
cea2e8a9 5480 DIE(aTHX_ PL_no_func, "getpwent");
a0d0e21e
LW		 5481#endif
5482}
5483
5484PP(pp_spwent)
5485{
d493b042 5486#if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
9cad6237 5487 dSP;
a0d0e21e
LW		 5488 setpwent();
5489 RETPUSHYES;
5490#else
cea2e8a9 5491 DIE(aTHX_ PL_no_func, "setpwent");
a0d0e21e
LW		 5492#endif
5493}
5494
5495PP(pp_epwent)
5496{
28e8609d 5497#if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
9cad6237 5498 dSP;
a0d0e21e
LW		 5499 endpwent();
5500 RETPUSHYES;
5501#else
cea2e8a9 5502 DIE(aTHX_ PL_no_func, "endpwent");
a0d0e21e
LW		 5503#endif
5504}
5505
5506PP(pp_ggrnam)
5507{
5508#ifdef HAS_GROUP
cea2e8a9 5509 return pp_ggrent();
a0d0e21e 5510#else
cea2e8a9 5511 DIE(aTHX_ PL_no_func, "getgrnam");
a0d0e21e
LW		 5512#endif
5513}
5514
5515PP(pp_ggrgid)
5516{
5517#ifdef HAS_GROUP
cea2e8a9 5518 return pp_ggrent();
a0d0e21e 5519#else
cea2e8a9 5520 DIE(aTHX_ PL_no_func, "getgrgid");
a0d0e21e
LW		 5521#endif
5522}
5523
5524PP(pp_ggrent)
5525{
0994c4d0 5526#ifdef HAS_GROUP
9cad6237 5527 dSP;
533c011a 5528 I32 which = PL_op->op_type;
a0d0e21e
LW		 5529 register char **elem;
5530 register SV *sv;
5531 struct group *grent;
5532
edd309b7
JH		 5533 if (which == OP_GGRNAM) {
5534 char* name = POPpbytex;
5535 grent = (struct group *)getgrnam(name);
5536 }
5537 else if (which == OP_GGRGID) {
5538 Gid_t gid = POPi;
5539 grent = (struct group *)getgrgid(gid);
5540 }
a0d0e21e 5541 else
0994c4d0 5542#ifdef HAS_GETGRENT
a0d0e21e 5543 grent = (struct group *)getgrent();
0994c4d0
JH		 5544#else
5545 DIE(aTHX_ PL_no_func, "getgrent");
5546#endif
a0d0e21e
LW		 5547
5548 EXTEND(SP, 4);
5549 if (GIMME != G_ARRAY) {
5550 PUSHs(sv = sv_newmortal());
5551 if (grent) {
5552 if (which == OP_GGRNAM)
1e422769 5553 sv_setiv(sv, (IV)grent->gr_gid);
a0d0e21e
LW		 5554 else
5555 sv_setpv(sv, grent->gr_name);
5556 }
5557 RETURN;
5558 }
5559
5560 if (grent) {
3280af22 5561 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
a0d0e21e 5562 sv_setpv(sv, grent->gr_name);
28e8609d 5563
3280af22 5564 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
28e8609d 5565#ifdef GRPASSWD
a0d0e21e 5566 sv_setpv(sv, grent->gr_passwd);
28e8609d
JH		 5567#endif
5568
3280af22 5569 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1e422769 5570 sv_setiv(sv, (IV)grent->gr_gid);
28e8609d 5571
5b56e7c5 5572#if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
3280af22 5573 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
3d7e8424
JH		 5574 /* In UNICOS/mk (_CRAYMPP) the multithreading
5575 * versions (getgrnam_r, getgrgid_r)
5576 * seem to return an illegal pointer
5577 * as the group members list, gr_mem.
5578 * getgrent() doesn't even have a _r version
5579 * but the gr_mem is poisonous anyway.
5580 * So yes, you cannot get the list of group
5581 * members if building multithreaded in UNICOS/mk. */
c90c0ff4 5582 for (elem = grent->gr_mem; elem && *elem; elem++) {
a0d0e21e
LW		 5583 sv_catpv(sv, *elem);
5584 if (elem[1])
5585 sv_catpvn(sv, " ", 1);
5586 }
3d7e8424 5587#endif
a0d0e21e
LW		 5588 }
5589
5590 RETURN;
5591#else
cea2e8a9 5592 DIE(aTHX_ PL_no_func, "getgrent");
a0d0e21e
LW		 5593#endif
5594}
5595
5596PP(pp_sgrent)
5597{
28e8609d 5598#if defined(HAS_GROUP) && defined(HAS_SETGRENT)
9cad6237 5599 dSP;
a0d0e21e
LW		 5600 setgrent();
5601 RETPUSHYES;
5602#else
cea2e8a9 5603 DIE(aTHX_ PL_no_func, "setgrent");
a0d0e21e
LW		 5604#endif
5605}
5606
5607PP(pp_egrent)
5608{
28e8609d 5609#if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
9cad6237 5610 dSP;
a0d0e21e
LW		 5611 endgrent();
5612 RETPUSHYES;
5613#else
cea2e8a9 5614 DIE(aTHX_ PL_no_func, "endgrent");
a0d0e21e
LW		 5615#endif
5616}
5617
5618PP(pp_getlogin)
5619{
a0d0e21e 5620#ifdef HAS_GETLOGIN
9cad6237 5621 dSP; dTARGET;
a0d0e21e
LW		 5622 char *tmps;
5623 EXTEND(SP, 1);
76e3520e 5624 if (!(tmps = PerlProc_getlogin()))
a0d0e21e
LW		 5625 RETPUSHUNDEF;
5626 PUSHp(tmps, strlen(tmps));
5627 RETURN;
5628#else
cea2e8a9 5629 DIE(aTHX_ PL_no_func, "getlogin");
a0d0e21e
LW		 5630#endif
5631}
5632
5633/* Miscellaneous. */
5634
5635PP(pp_syscall)
5636{
d2719217 5637#ifdef HAS_SYSCALL
39644a26 5638 dSP; dMARK; dORIGMARK; dTARGET;
a0d0e21e
LW		 5639 register I32 items = SP - MARK;
5640 unsigned long a[20];
5641 register I32 i = 0;
5642 I32 retval = -1;
5643
3280af22 5644 if (PL_tainting) {
a0d0e21e 5645 while (++MARK <= SP) {
bbce6d69 5646 if (SvTAINTED(*MARK)) {
5647 TAINT;
5648 break;
5649 }
a0d0e21e
LW		 5650 }
5651 MARK = ORIGMARK;
5652 TAINT_PROPER("syscall");
5653 }
5654
5655 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5656 * or where sizeof(long) != sizeof(char*). But such machines will
5657 * not likely have syscall implemented either, so who cares?
5658 */
5659 while (++MARK <= SP) {
5660 if (SvNIOK(*MARK) || !i)
5661 a[i++] = SvIV(*MARK);
3280af22 5662 else if (*MARK == &PL_sv_undef)
748a9306 5663 a[i++] = 0;
301e8125 5664 else
8b6b16e7 5665 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
a0d0e21e
LW		 5666 if (i > 15)
5667 break;
5668 }
5669 switch (items) {
5670 default:
cea2e8a9 5671 DIE(aTHX_ "Too many args to syscall");
a0d0e21e 5672 case 0:
cea2e8a9 5673 DIE(aTHX_ "Too few args to syscall");
a0d0e21e
LW		 5674 case 1:
5675 retval = syscall(a[0]);
5676 break;
5677 case 2:
5678 retval = syscall(a[0],a[1]);
5679 break;
5680 case 3:
5681 retval = syscall(a[0],a[1],a[2]);
5682 break;
5683 case 4:
5684 retval = syscall(a[0],a[1],a[2],a[3]);
5685 break;
5686 case 5:
5687 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5688 break;
5689 case 6:
5690 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5691 break;
5692 case 7:
5693 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5694 break;
5695 case 8:
5696 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5697 break;
5698#ifdef atarist
5699 case 9:
5700 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5701 break;
5702 case 10:
5703 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5704 break;
5705 case 11:
5706 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5707 a[10]);
5708 break;
5709 case 12:
5710 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5711 a[10],a[11]);
5712 break;
5713 case 13:
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5715 a[10],a[11],a[12]);
5716 break;
5717 case 14:
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5719 a[10],a[11],a[12],a[13]);
5720 break;
5721#endif /* atarist */
5722 }
5723 SP = ORIGMARK;
5724 PUSHi(retval);
5725 RETURN;
5726#else
cea2e8a9 5727 DIE(aTHX_ PL_no_func, "syscall");
a0d0e21e
LW		 5728#endif
5729}
5730
ff68c719 5731#ifdef FCNTL_EMULATE_FLOCK
301e8125 5732
ff68c719 5733/* XXX Emulate flock() with fcntl().
5734 What's really needed is a good file locking module.
5735*/
5736
cea2e8a9
GS		 5737static int
5738fcntl_emulate_flock(int fd, int operation)
ff68c719 5739{
5740 struct flock flock;
301e8125 5741
ff68c719 5742 switch (operation & ~LOCK_NB) {
5743 case LOCK_SH:
5744 flock.l_type = F_RDLCK;
5745 break;
5746 case LOCK_EX:
5747 flock.l_type = F_WRLCK;
5748 break;
5749 case LOCK_UN:
5750 flock.l_type = F_UNLCK;
5751 break;
5752 default:
5753 errno = EINVAL;
5754 return -1;
5755 }
5756 flock.l_whence = SEEK_SET;
d9b3e12d 5757 flock.l_start = flock.l_len = (Off_t)0;
301e8125 5758
ff68c719 5759 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5760}
5761
5762#endif /* FCNTL_EMULATE_FLOCK */
5763
5764#ifdef LOCKF_EMULATE_FLOCK
16d20bd9
AD		 5765
5766/* XXX Emulate flock() with lockf(). This is just to increase
5767 portability of scripts. The calls are not completely
5768 interchangeable. What's really needed is a good file
5769 locking module.
5770*/
5771
76c32331 5772/* The lockf() constants might have been defined in <unistd.h>.
5773 Unfortunately, <unistd.h> causes troubles on some mixed
5774 (BSD/POSIX) systems, such as SunOS 4.1.3.
16d20bd9
AD		 5775
5776 Further, the lockf() constants aren't POSIX, so they might not be
5777 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5778 just stick in the SVID values and be done with it. Sigh.
5779*/
5780
5781# ifndef F_ULOCK
5782# define F_ULOCK 0 /* Unlock a previously locked region */
5783# endif
5784# ifndef F_LOCK
5785# define F_LOCK 1 /* Lock a region for exclusive use */
5786# endif
5787# ifndef F_TLOCK
5788# define F_TLOCK 2 /* Test and lock a region for exclusive use */
5789# endif
5790# ifndef F_TEST
5791# define F_TEST 3 /* Test a region for other processes locks */
5792# endif
5793
cea2e8a9
GS		 5794static int
5795lockf_emulate_flock(int fd, int operation)
16d20bd9
AD		 5796{
5797 int i;
84902520
TB		 5798 int save_errno;
5799 Off_t pos;
5800
5801 /* flock locks entire file so for lockf we need to do the same */
5802 save_errno = errno;
6ad3d225 5803 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
84902520 5804 if (pos > 0) /* is seekable and needs to be repositioned */
6ad3d225 5805 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
08b714dd 5806 pos = -1; /* seek failed, so don't seek back afterwards */
84902520
TB		 5807 errno = save_errno;
5808
16d20bd9
AD		 5809 switch (operation) {
5810
5811 /* LOCK_SH - get a shared lock */
5812 case LOCK_SH:
5813 /* LOCK_EX - get an exclusive lock */
5814 case LOCK_EX:
5815 i = lockf (fd, F_LOCK, 0);
5816 break;
5817
5818 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5819 case LOCK_SH|LOCK_NB:
5820 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5821 case LOCK_EX|LOCK_NB:
5822 i = lockf (fd, F_TLOCK, 0);
5823 if (i == -1)
5824 if ((errno == EAGAIN) || (errno == EACCES))
5825 errno = EWOULDBLOCK;
5826 break;
5827
ff68c719 5828 /* LOCK_UN - unlock (non-blocking is a no-op) */
16d20bd9 5829 case LOCK_UN:
ff68c719 5830 case LOCK_UN|LOCK_NB:
16d20bd9
AD		 5831 i = lockf (fd, F_ULOCK, 0);
5832 break;
5833
5834 /* Default - can't decipher operation */
5835 default:
5836 i = -1;
5837 errno = EINVAL;
5838 break;
5839 }
84902520
TB		 5840
5841 if (pos > 0) /* need to restore position of the handle */
6ad3d225 5842 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
84902520 5843
16d20bd9
AD		 5844 return (i);
5845}
ff68c719 5846
5847#endif /* LOCKF_EMULATE_FLOCK */
241d1a3b
NC		 5848
5849/*
5850 * Local variables:
5851 * c-indentation-style: bsd
5852 * c-basic-offset: 4
5853 * indent-tabs-mode: t
5854 * End:
5855 *
37442d52
RGS		 5856 * ex: set ts=8 sts=4 sw=4 noet:
5857 */
Unnamed repository; edit this file 'description' to name the repository.